Guest guest Posted August 2, 2007 Report Share Posted August 2, 2007 I've been anemic for over 10 years, perhaps 15 years, running as low as 10.3 or so. At times, I have hit 12, but rarely, and I am usually around 11, plus or minus. Neither my general physician or nepthrologist are overly concerned, and attribute it to kidney dysfunction, or as in the first article, ckd. I was kind of surprised at how the doctors in this discussion seemed to be acting like low enemia was something just being discovered (in relationship to diabetes and ckd). Sometimes I really wonder about the medical field. anyway, thanks for the articles Pat. Dave articles 1. Welcome to Medscape Nephrology and to this Spotlight entitled, " Managing Anemia in Patients With Type 2 Diabetes and Chronic Kidney Disease. " I am Dr. Ajay Singh, Clinical Director at Brigham & Women's Hospital and Associate Professor of Medicine at Harvard Medical School in Boston, MA, and I will be your moderator. Slide 4. Prevalence of Diabetes and CKD Willa A. Hsueh, MD: I think all of our audience knows that diabetes is the most common cause of end stage renal disease in the US and there are about 30% to 40% of patients with type 1 DM who will go on to have chronic kidney disease and about 10% to 15%, maybe even as high as 20%, of patients with type 2 who will go on to have chronic kidney disease. Aggressive Prevention of CKD Slide 5. Aggressive Prevention of CKD I think we're all realizing, thanks to our nephrology colleagues, that as patients develop albuminuria, not only is that an important sign of kidney disease, but I think it's a sign that there may be terrible problems with the endothelium that could then lead to problems, of course, with coronary heart disease and stroke, so that should raise a red flag for all of us. In addition, I think we also know that glycemic control is very important for the microvascular complications, not just the kidney but the eye and some of the neurologic complications. So with that said, I think as endocrinologists we're really focusing on tight control early, tighter and tighter control. In fact, the recent ADA Guidelines suggest that we get our control to nearly normal in all of our patients with hemoglobins around 5.5% or less. So there's an aggressive effort, I think, to try to prevent chronic kidney disease. Unfortunately, I think some patients will not respond to some of those or comply with some of those aggressive efforts, and we will still have problems with the kidney. Slide 6. Recognizing the Complications of CKD .. the question is how do we recognize some of the complications early, that would include not just the, as we said, the coronary heart disease complications but also the anemia, the changes in type 2 hyperparathyroidism or secondary hyperparathyroidism, and issues about early interventions for the anemia, and early interventions with vitamin D therapy? Dr. Singh: One of the really important issues, of course, is the burden of cardiovascular disease in this population. Dr. Hsueh: Absolutely. Dr. Singh: It seems like a number of observational studies have indicated that at a very early stage in the syndrome of diabetic nephropathy, patients develop vascular disease and cardiovascular disease. Is it your sense that the diabetologists are now increasingly recognizing this and are becoming more aggresive in managing cardiovascular disease in this population? Dr. Hsueh: Oh absolutely, you cannot go to an endocrine meeting without hearing about the marked increased incidence of cardiovascular disease in patients with diabetes, and I think we've known for a long time that albuminuria is a key signal that heralds that, and I think you all know well that as there is a progressive decrease in glomerular filtration rate, there's a progressive increase in cardiovascular disease. %%Slide 8. Clinical Practice Guidelines for CKD and Diabetes Mark E. Molitch, MD: several things came out of reviewing the literature for those guidelines, certainly the glycemic control that Willa had talked about remains important, and even in the patient as they have advancing kidney disease, we still need to get good glycemic control to try to reduce and ameliorate some of the other long-term complications of diabetes. But as far as the cardiovascular disease goes and the lipid management, these are patients at such high risk that we recommend an LDL goal of less than 70 for those patients, obviously blood pressure treatment to get blood pressures less than 130/80 for virtually all patients with diabetes, and perhaps even more stringent goals for the patient who's getting progressive nephropathy. I think one of the things that brought home to me as we were reviewing all this, is the knowledge that's relatively new, at how early secondary hyperparathyroidism and anemia start to be found. %% Slide 9. Development of Anemia in Patients With Diabetes Dr. Singh: one of the things that I have come across in the literature is the idea that anemia tends to develop at an earlier stage in diabetics than it seems to in nondiabetics, so for any given level of GFR. What are your thoughts on that, Willa ? Dr. Hsueh: Well we're recognizing more patients, for example, with stage 3 chronic kidney disease, and we are seeing evidence that if patients have diabetes, the anemia for any level of chronic kidney disease seems to be worse than the nondiabetic patient, and of course there is this anemia of chronic disease to begin with that our patients with diabetes have, and then when the kidney disease sets in, there are problems with synthesis, as you know, of erythropoietin, and so that complicates the issue, . Dr. Singh: Mark, do you refer patients once they develop anemia or do you manage the anemia yourself in your own practice? Dr. Molitch: Well I think in our practice and probably in most endocrine practices, by the time we find the patient whose hemoglobin is getting less than 11 and we start thinking about erythropoietin [EPO], we have generally been referring that patient to the nephrologist.Slide 10. TREAT Study Design this is a randomized prospective study looking at the effects of erythropoietin supplementation, trying to get the hemoglobin levels up. Slide 12. Diabetologists and Nephrologists Working Together Dr. Singh: In my own nephrology practice, I tend not to spend a lot of time thinking about different types of insulin, so I would imagine that Willa, you also don't think about all the newer erythropoietins that are coming out since you have such a strong nephrology division at UCLA. Dr. Hsueh: Well, like Mark, with erythropoietin, we're actually when we feel patients need that, we actually call our nephrology colleagues and, as you said, they have a very strong background. What I'm amazed at is that our nephrology colleagues, once the GFR is somewhere around 30 or less, they take over full management, so they actually have to know about insulins and know about other issues. %%Slide 15. Managing Patients With Diabetes and CKD Dr. Singh: So what are your top 2 or 3 things that nowadays in 2007 you think about in managing patients with diabetes who have chronic kidney disease? Do you, as Mark is alluding to, manage their lipids more aggressively, their hypoparathyroidism, or do you feel that these areas still represent controversial issues? Dr. Hsueh: Well, as I said, we would see these patients more in stage 2, stage 3, and maybe the beginning of stage 4, and I manage their cardiovascular risk, hypertension especially, very aggressively because I know that whatever changes in blood pressure happen have great impact on the kidney. The lipids I'm concerned with, but I'm aware of the studies you said, and then the question is the role of vitamin D because there's very intriguing information that not only is it good for the calcium-phosphorus changes but also it may have anti-inflammatory effects; and there are a number of studies at UCLA, then of course the whole issue of anemia, and in patients with heart disease, of course you want to provide oxygen but you don't want to provide so many red cells that you get thrombosis formation. Dr. Singh: So, Mark, do you think that diabetologists and nephrologists can work together in managing these important conditions or is there hope for us to work together? Dr. Molitch: Well absolutely I think it's almost a natural combination, but I think one of the things we have to do is keep working together, and so it's not a hand off, it's a continued comanagement of the patients even once they get on dialysis. I think the diabetologists can lend a hand in trying to help manage their diabetes even at that point. ..Dr. Singh: So management of anemia and diabetes and kidney disease are interrelated and now one can manage them in a diabetes center in a collaborative fashion or one can refer these patients but it seems like one of the key issues is to certainly manage them, to recognize it early and manage them. Slide 16. Management of Dialysis Patients With Diabetes One quick question I have before we summarize is what about the dialysis patient - do you tend to have them come back to your diabetes center or diabetes practice and continue to follow them or is it your observation that most of these patients get managed wholly by the nephrologist when they reach end-stage renal disease? Dr. Hsueh: Well I'm happy because there are more oral agents now on board that we can use in dialysis patients, for example, in addition to insulin, . We now have sitagliptin or Januvia,.. you have to adjust the dose, but it's a DPP-4 inhibitor that works on the incretin pathway. We have the TZDs [thiazolidinediones] which can be used all the way through to end-stage kidney disease. And, of course, we have acarbose, which mainly works on the gut and just slows, doesn't inhibit, just slows carbohydrate absorption. So you actually have 3 oral agents that you can mix and match in patients with chronic kidney disease and then you have insulin, so I think we've broadened the horizons for patients with CKD. %% Slide 17. Summary and Closing Comments Dr. Singh: So it sounds like nephrologists need to learn more about how to manage diabetes with different types of insulins and oral agents and diabetologists need to learn to manage perhaps a little bit more about the comorbidities of kidney disease such as hypoparathyroidism and lipid abnormalities but also anemia. And whether you refer these patients or you manage them in the diabetes center, the key is to try to manage them together. Dr. Hsueh: Well, we're waiting for you to do the studies to tell us what level of hemoglobin should we intervene, when should we intervene with vitamin D; of course, both of those studies are ongoing. Dr. Singh: Right. Well, that was, I think, a very productive discussion, and I'd like to thank Dr. Hsueh and Dr. Molitch for participating. I think we achieved our objectives of discussing the interrelatedness of anemia, diabetes, and chronic kidney disease. I also believe that we really brought out the notion that diabetologists and nephrologists need to work together in both early recognition and then subsequent management of these patients. Supported by an independent educational grant from Roche 2.%% Notice: The LightHouse for the Blind and Visually Impaired will be hosting several informational survey interviews on talking glucose meters and adaptive insulin syringe devices. These interview sessions will be conducted in conjunction with a doctorial student from UC Berkeley. The focus of the interviews is to collect data concerning talking glucose meters and adaptive insulin syringe devices. The interview will take between 60 to 90 minutes in San Francisco and there will be a $40 honorarium for those who participate. The participants must be diabetic and have used or currently use a talking glucose meter. If you know of individuals who may qualify please contact Beth Berenson at The LightHouse, Phone: or via email at: 3.%% Medscape - Metabolic Syndrome Linked to Chronic Kidney Disease (Reuters Health) Jul 24 - A study of a Chinese population aged 40 years and older found an association between metabolic syndrome and chronic kidney disease. (CKD) Metabolic syndrome " is a common disorder in developed countries, " note the researchers. " With its dramatic economic development and the consequent changes in lifestyle and diet, China too has seen the metabolic syndrome become an important health care problem. " [2310 people; cross-sectional study; mean age 60.7 years,] The overall prevalence of metabolic syndrome was 34.1%, and the overall prevalence of CKD was 10.7%. The prevalence of CKD was higher among subjects with metabolic syndrome than those without metabolic syndrome (15.4% versus 8.3%, respectively. " Further studies are needed to determine if treatment of metabolic syndrome could substantially ease the burden of CKD in China, " the team concludes. Mayo Clin Proc 2007;82 4.%% In Diabetes Today 23-JUL-2007 - Hepatitis C Strongly Linked to Type 2 Diabetes (Reuters Health) - People infected with hepatitis C virus have an increased risk of developing type 2, or " adult-onset " diabetes, a population-based study confirms. This risk is particularly high in younger people who are overweight, researchers have found. Therefore, screening for and preventing diabetes in persons with HCV infection could be started earlier than the suggested age of 45 or older, which is the recommendation for the general population, especially for patients with are heavier or who have other diabetes risk factors for diabetes, the team writes. [4,958 people age 40 or older without diabetes, 3,486 tested negative and 812 positive for HCV; 116 subjects were infected with both HCV and HCV; 544 tested positive for hepatitis B; 7 year follow up] After adjusting the data to account for established diabetes risk factors, the incidence of DM was 70 percent higher in persons with HCV infection than in those without it. " This finding is consistent with past studies showing that HCV infection is highly associated with diabetes. " the younger group with HCV infection was at greater risk for the disease, they note. HCV infection plus being overweight or obese magnified the risk of diabetes by about three times compared with uninfected persons of normal weight. American Journal of Epidemiology, July 15, 2007. 5.%% TimesSelect F.D.A. Review Criticizes Diabetes Drug and Maker July 26, 2007 Patients who take Avandia, a popular but controversial diabetes medicine made by GlaxoKline, [GSK] are far more likely to suffer and die from heart problems than those who take Actos, a similar pill made by Takeda, according to federal drug reviewers. Avandia is particularly dangerous to patients who also take insulin. By contrast, Actos can be taken safely with insulin, according to the review. The findings likely spell the end of Avandia's status as one of the nation's most popular drugs for treating diabetics who are not dependent on insulin. Last year, more than a million patients in the US took Avandia, and a similar number took Actos. Avandia's 2006 global sales were nearly $3.4 billion. The report and charges that GSK sought to intimidate a doctor who publicly warned about Avandia's risks in 1999 could lead to a cascade of lawsuits against the company. Indeed, F.D.A. reviewers were sharply critical of the quality of the studies GSK has undertaken to test the safety of Avandia, dismissing the present and future results of an ongoing 4,000-patient trial as unreliable and invalid. The report by medical and safety reviewers within the FDA also provides ammunition to critics on Capitol Hill and elsewhere who claim that top F.D.A. officials have been far too slow to acknowledge Avandia's risks. GlaxoKline suggested a year ago that the agency add a note to the drug's label about Avandia's growing heart risks, the report states. These conclusions come in a 436-page compendium of reviews released in advance of an advisory committee hearing to be held on Monday to discuss Avandia's effects on the heart. The F.D.A. intends to ask the committee of independent experts whether Avandia should continue to be sold. It is far from clear, F.D.A. safety reviewers concluded in the report, whether taking Avandia, also known as rosiglitazone, is worth the risk. " A critical question to be resolved in determining appropriate regulatory action is whether the anticipated therapeutic benefit of rosiglitazone outweighs the demonstrated cardiovascular risk, " one F.D.A. reviewer concluded. 6.%% Medscape - Corneal Sensitivity Is Linked to Diabetic Neuropathy (Reuters Health) Jul 26 - Results of a new study suggest that corneal sensitivity is reduced in diabetic patients, and is related to the severity of neuropathy. " In diabetic patients, corneal sensitivity is reduced, due to a loss of corneal nerve fibers, which leads to corneal keratopathy and a susceptibility to injury, with recurrent erosions and ulcers, " researchers write . Corneal sensation, they add, can be evaluated using the Cochet-Bonnet aesthesiometer (C-BA) or the noncontact corneal aesthesiometer (NCCA). They examined corneal sensitivity in 147 diabetic patients and 18 controls using these approaches and also assessed neuropathy deficit score. Neuropathy was classified as being absent, mild, moderate or severe. No significant differences in age, type of diabetes, and A1C were observed among the groups. The duration of diabetes increased with neuropathic severity. Corneal sensitivity was significantly reduced in patients with diabetes compared with controls. It was not reduced in diabetic patients without neuropathy. However, a significant reduction was observed in those with any degree of neuropathy. A significant correlation was observed between neuropathy established by C-BA and NCCA. The findings, the investigators conclude " have important clinical implications regarding the development of corneal abnormalities in diabetic patients and also raise the possibility that corneal sensation could be used to screen for diabetic neuropathy. " Diabetes Care 2007;30 7.%% Medical News Today - Improving Heart Health In Kids With Diabetes Type 1: The More They Exercise, The Lower The Risk Of Early Death 28 Jul 2007 It's never too early to focus on how to maintain good cardiovascular health, especially for people with type 1. A study published in the August issue of Diabetes Care underscores the need for regular physical activity among youth, finding that the more active the child, the better the child's cardiovascular risk profile. Heart disease is the number one killer of people with diabetes. Among type 1 patients as young as 20-39 years, the risk of dying from cardio- and cerebrovascular events is five times higher than it is for people who don't have diabetes. Previous studies have shown that the development of atherosclerotic lesions begins in childhood and that 69 percent of pediatric patients with type 1 diabetes exhibit one or more cardiovascular risk factors. A new study by researchers in Germany and Austria, which looked at the physical activity levels and cardiovascular health of more than 23,000 young people between the ages of 3 and 18, found that those who were most physically active were the least likely to be at risk for heart disease. As physical activity levels rose, risk factors such as high lipid profiles, diastolic blood pressure, and blood glucose levels fell. Regular physical activity was defined as exercising for at least 30 minutes at a time, not including school sports. The study found that those who were active at least once or twice per week were also less likely to have high blood pressure than those who didn't exercise at all. And, it showed that the frequency of regular physical activity " was one of the most important influencing factors for HbA1c. " The A1c test measures average blood glucose levels over a period of 2-3 months and helps a person with diabetes determine how well they are keeping blood glucose levels under control overall. 8.%% Medscape Medical News - The Choice of a Metabolic Syndrome Generation: Soft Drink Consumption Associated With Increased Metabolic Risk [for another version of this see DRList 7-24-07] July 25, 2007 - Drinking more than one soft drink daily is associated with a higher risk of developing adverse metabolic traits, as well as developing the metabolic syndrome, a new study has shown. Interestingly, it doesn't matter if the soda consumed is the diet variety, those with zero calories, as investigators showed these also increased the burden of metabolic risk in middle-aged adults. " That was one of the more striking aspects of this study, " lead investigator Dr R. Vasan (Boston University School of Medicine, MA) told heartwire. . " It actually doesn't matter if the soft drink is regular or diet. There was an association of increased risk of developing the metabolic syndrome with both types of drinks. " Vasan said that the consumption of soft drinks has doubled to tripled between 1977 and 2001. During this same time period, soft-drink sizes have also increased to staggering proportions. With evidence that soft-drink consumption is linked with weight gain and obesity as well as an increased risk of diabetes, the investigators questioned whether soft-drink consumption in adults, in amounts that are seemingly innocuous, like one per day, posed any metabolic hazard. The team related the incidence of metabolic syndrome and its components to soft-drink consumption in more than 6000 individuals participating in the Framingham Heart Study. In a cross-sectional analysis of the data, investigators report that those consuming more than one soft drink daily had a 48% higher prevalence of metabolic syndrome than those who drank less than one soft drink per day. In a longitudinal analysis of more than 6000 subjects free from metabolic syndrome at baseline, drinking more than one soft drink daily was associated with a 44% greater risk of developing metabolic syndrome and with developing 4 out of 5 components of metabolic syndrome. In a smaller sample of participants who had data available regarding the type of soft drink consumed, researchers observed that that those who consumed one or more drinks of diet or regular soda per day had a 50% to 60% increased risk of developing new-onset metabolic syndrome. Despite the fact that diet soda has zero calories, the findings are not entirely surprising, said Vasan, as diet soft drinks have been previously linked with poor health outcomes in children, such as weight gain and high blood pressure. In terms of theories explaining the association between soft-drink consumption and the metabolic syndrome risk, Vasan said there are no definitive answers yet. .it might be a lifestyle/dietary background thing driving this. " In addition, Vasan said diet soda might also induce a conditioning response in which the soft drinks promote a dietary preference for sweeter foods. Also, because diet soda is liquid, this has the effect of individuals eating more at the next meal, mainly because liquids are not as satiating. And finally, the brown caramel in soda has been linked with tissue damage and inflammation, which might contribute to the increased risk. All of these theories, however, are debated in literature. " Clearly, these findings are sufficiently intriguing that scientists now have to help us understand better why we see this association, " said Vasan. " We are not inferring causality from this analysis. It is just an association, so we need to turn to the scientists who are better positioned to help us understand the association more. " Circulation. Published online July 23, 2007. 9.%% -FDA Advisory Panels Acknowledge Signal of Risk With Rosiglitazone, but Stop Short of Recommending Its Withdrawal Wood Heartwire 2007. C 2007 Medscape July 31, 2007 - Rosiglitazone (Avandia, GlaxoKline [GSK]) is associated with a clear signal of cardiac ischemic risk in type 2 diabetics, the available data suggest, but this signal is not enough to justify yanking the drug from the market. This was the near-unanimous conclusion of the FDA's joint Endocrinologic and Metabolic Drugs/Drug Safety and Risk Management advisory committees at Monday's hearing. A long day of confusing, often conflicting data was capped by the seemingly inconsistent conclusions of the committee members who agreed 20:3 with the statement that available studies supported a signal of harm, but voted 22:1 to keep rosiglitazone on the market. Dr Pickering who was one of the three members who did not agree that there was a clear increased risk of ischemic events, pointed to the apparent contradiction: " I'm puzzled as to how people can vote yes for both questions, " he mused. But the vast majority of voting members on the panel seemed to agree with the sentiment raised repeatedly by presenters, panelists, and open public-hearing speakers, that it was important for physicians to have rosiglitazone in their arsenal of treatments for type 2. Indeed, some of the day's discussion revolved around an emerging hypothesis that the other thiazolidinedione (TZD) on the market, pioglitazone [Actos], might not carry the same safety concerns as rosiglitazone. Those data, however, comes predominantly from an as-yet unpublished analysis conducted by pioglitazone manufacturer Takeda, and has not yet been reviewed by the FDA, nor was it provided in full to panel members. A review of that data, was on track to be completed in time for the panel's review of the cardiovascular ischemic/thrombotic risks of TZDs, which had originally been scheduled for later in the year. The hearing, however, was bumped up after the publication of a controversial meta-analysis in the New England Journal of Medicine (NEJM) [1]--pointing to a significant 43% increase in myocardial infarction with rosiglitazone. During today's session, panel members heard from the sponsor and the FDA, both of whom had conducted their own meta-analyses of the randomized controlled trial data and turned up findings that were surprisingly consistent with the NEJM analysis--a 40% increased risk of serious ischemic events by the FDA's reckoning and a 31% increase in myocardial ischemic events in GSK's meta-analysis. All of the yes-votes reiterated the same concerns: that the evidence linking rosiglitazone with increased risk of cardiovascular death or MI was weak or inconsistent, particularly in trials that had active control arms rather than placebo comparators; that ischemic risk appeared higher in older patients, patients with heart failure, patients with preexisting coronary disease, and patients taking insulin--and that this should be reflected in the labeling. In fact, several panelists pointed out that current labeling lists rosiglitazone as being indicated for diabetics taking insulin; they felt this should be removed and a black box should be added warning against its use in this group. Others emphasized that the inconclusiveness of the existing studies and the fact that trials are still ongoing should also be mentioned in the packaging. But time and again, the experts on the panel bemoaned the fact that, not for the first time, the FDA had not had the foresight to mandate appropriate trials, leaving the committees to try to draw conclusions from meta-analyses and observational studies. Even the ongoing RECORD, ACCORD, and BARI-2D trials, by the FDA's own review, are underpowered or not designed to answer key questions about whether ischemic events will be higher than with other diabetes drugs, and if they are, which patient subsets will be affected. The mere fact that most of the studies included in the meta-analyses were only six months in duration underscores the paucity of solid information. The sole no-vote on the key question of whether rosiglitazone should remain on the market came from Dr Arthur Levin (Center for Medical Consumers, New York, NY). " It seems to me that given the evidence of a strong safety signal, given the fact that around this table and at the FDA there are doubts about the ability of ongoing clinical trials to definitively answer the question about the CV safety of the drug, and given the enormity of the potential public health risk of allowing this drug to continue to be marketed and used by millions of people for the rest of their lives, I logically can't find any way to justify leaving this drug on the market. " Levin's opinions have the support of at least two FDA insiders, Dr Gerald Dal Pan and Dr Graham , both in the FDA's Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research. Graham presented a risk/benefit assessment of rosiglitazone, pointing out that although his views were his own, his findings had been reviewed and were supported by others in his department, such that he was not just speaking as " Graham the FDA Whistle-Blower. " Graham showed projections to back up his claim that ongoing studies " will not change our state of knowledge... Graham's concerns about the quality of the existing rosiglitazone data, and the flawed studies in progress, struck a chord with panel members, who called for stricter standards for pre-approval and post-marketing studies. " I would have to say, the FDA has to take some responsibility for the dilemma in which we find ourselves, for approving less than optimally designed trials in the past, " Dr Arthur Moss observed. " I do think there is a problem that needs to be rectified in the future. " Vindication for Nissen Commenting on the day's deliberations to heartwire, Dr Nissen (Cleveland Clinic, OH), seemed satisfied that the FDA and sponsors' meta-analyses had confirmed his own findings. . " One concern I have is that black-box warnings do not always result in huge changes in prescribing practices, so time will tell, " he told heartwire 1. Nissen SE and Wolski K. Effect of rosiglitazone on the risk of myocardial infarction and death from cardiovascular causes. N Engl J Med 2007; 356:2457-2471. 10.%% Simultaneous Pancreas Kidney Transplantation From Old Donors Medscape Transplantation. 2007; C2007 Medscape 07/24/2007 Patient and Graft Survival Implications of Simultaneous Pancreas Kidney Transplantation From Old Donors Am J Transplant. 2007;7 Summary - The authors performed a retrospective analysis of the United Network for Organ Sharing database and identified adult patients with type 1 DM who were placed on the waiting list for simultaneous pancreas-kidney (SPK) transplantation. 8850 patients (54%) received an SPK transplant, of which 9% were from donors 45 years of age or older. Survival analyses were performed . .SPK transplantation from both young and old donors independently predicted lower mortality compared with staying on the waiting list. An additional expected wait of 1.5 years for a young donor equalized long-term survival expectations between young and old SPK donors. On the basis of these findings, the authors concluded that SPK transplantation offers a substantial survival benefit independent of donor age and should be considered for patients with decreased access to organs from young donors. Viewpoint - The critical shortage of donor organs challenges the transplant community to maximize and optimize the use of organs from all consenting deceased donors. .the profile of acceptable older donors for SPK transplantation may include female sex, low body mass index, and noncerebrovascular etiology of brain death. The patient population most likely to benefit from SPK transplantation from old donors includes either patients with limited access to timely transplantation (eg, blood type O or B, highly sensitized) or those who cannot afford to wait for an extended period of time (unstable diabetes, prolonged duration of dialysis, older age [> 50 years], known peripheral vascular or cardiovascular disease). 11.%% Medscape Medical News - Low GI Diets Better for Weight Loss, Lipid Profiles, Finds Cochrane Review July 24, 2007 - A new Cochrane review of six randomized controlled trials comparing low glycemic index (GI) or glycemic load (GL) diets with other diets has found that overweight or obese people lost more weight and had more improvement in lipid profiles with the low GI eating plans. Those on the low GI diets lost an average of 2.2 pounds (1 kg) more than those given comparison diets, which included higher GI or GL diets and conventional weight loss diets. They also had significantly better decreases in total and low-density lipoprotein (LDL) cholesterol, the researchers note. And in the two trials that evaluated only obese participants, weight loss was even more apparent - the low GI dieters lost about 9.2 pounds, compared with about 2.2 pounds shed by those on the other diets. However, the scientists caution that enduring data are still needed. " Longer trials with increased length of follow-up will determine whether the improvements reported can be maintained and incorporated into lifestyle long-term, " they say. Two experts not connected with the review expressed mixed opinions. One said this was a great review, while the other pointed out that the difference in weight loss between the low and high GI diets was rather small. The team included six trials in their review, including a total of 202 adults. The diets lasted from 5 weeks to 6 months, and none of the studies reported any adverseveffects associated with consuming a low GI diet.vAs well as losing more weight, those on the low GI diets also had significantly greatervloss of total fat mass and decrease in body mass index (BMI) than those on the comparison diets. " Considering the brevity of the interventions, the results are notable, " they add. Improvements in blood lipids were also significant. Cochrane Database Syst Rev. Published online July 18, 2007. Abbreviations: ADA - American Diabetes Association; DM - diabetes Mellitus; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities.Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thl@... Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 2, 2007 Report Share Posted August 2, 2007 I thought it very interesting as that is what my endo and nephro are doing with me! Re: articles A definite keeper. I believe I will read this one at least five times from beginning to end. I will probably even take notes on it. articles 1. Welcome to Medscape Nephrology and to this Spotlight entitled, " Managing Anemia in Patients With Type 2 Diabetes and Chronic Kidney Disease. " I am Dr. Ajay Singh, Clinical Director at Brigham & Women's Hospital and Associate Professor of Medicine at Harvard Medical School in Boston, MA, and I will be your moderator. Slide 4. Prevalence of Diabetes and CKD Willa A. Hsueh, MD: I think all of our audience knows that diabetes is the most common cause of end stage renal disease in the US and there are about 30% to 40% of patients with type 1 DM who will go on to have chronic kidney disease and about 10% to 15%, maybe even as high as 20%, of patients with type 2 who will go on to have chronic kidney disease. Aggressive Prevention of CKD Slide 5. Aggressive Prevention of CKD I think we're all realizing, thanks to our nephrology colleagues, that as patients develop albuminuria, not only is that an important sign of kidney disease, but I think it's a sign that there may be terrible problems with the endothelium that could then lead to problems, of course, with coronary heart disease and stroke, so that should raise a red flag for all of us. In addition, I think we also know that glycemic control is very important for the microvascular complications, not just the kidney but the eye and some of the neurologic complications. So with that said, I think as endocrinologists we're really focusing on tight control early, tighter and tighter control. In fact, the recent ADA Guidelines suggest that we get our control to nearly normal in all of our patients with hemoglobins around 5.5% or less. So there's an aggressive effort, I think, to try to prevent chronic kidney disease. Unfortunately, I think some patients will not respond to some of those or comply with some of those aggressive efforts, and we will still have problems with the kidney. Slide 6. Recognizing the Complications of CKD .. the question is how do we recognize some of the complications early, that would include not just the, as we said, the coronary heart disease complications but also the anemia, the changes in type 2 hyperparathyroidism or secondary hyperparathyroidism, and issues about early interventions for the anemia, and early interventions with vitamin D therapy? Dr. Singh: One of the really important issues, of course, is the burden of cardiovascular disease in this population. Dr. Hsueh: Absolutely. Dr. Singh: It seems like a number of observational studies have indicated that at a very early stage in the syndrome of diabetic nephropathy, patients develop vascular disease and cardiovascular disease. Is it your sense that the diabetologists are now increasingly recognizing this and are becoming more aggresive in managing cardiovascular disease in this population? Dr. Hsueh: Oh absolutely, you cannot go to an endocrine meeting without hearing about the marked increased incidence of cardiovascular disease in patients with diabetes, and I think we've known for a long time that albuminuria is a key signal that heralds that, and I think you all know well that as there is a progressive decrease in glomerular filtration rate, there's a progressive increase in cardiovascular disease. %%Slide 8. Clinical Practice Guidelines for CKD and Diabetes Mark E. Molitch, MD: several things came out of reviewing the literature for those guidelines, certainly the glycemic control that Willa had talked about remains important, and even in the patient as they have advancing kidney disease, we still need to get good glycemic control to try to reduce and ameliorate some of the other long-term complications of diabetes. But as far as the cardiovascular disease goes and the lipid management, these are patients at such high risk that we recommend an LDL goal of less than 70 for those patients, obviously blood pressure treatment to get blood pressures less than 130/80 for virtually all patients with diabetes, and perhaps even more stringent goals for the patient who's getting progressive nephropathy. I think one of the things that brought home to me as we were reviewing all this, is the knowledge that's relatively new, at how early secondary hyperparathyroidism and anemia start to be found. %% Slide 9. Development of Anemia in Patients With Diabetes Dr. Singh: one of the things that I have come across in the literature is the idea that anemia tends to develop at an earlier stage in diabetics than it seems to in nondiabetics, so for any given level of GFR. What are your thoughts on that, Willa ? Dr. Hsueh: Well we're recognizing more patients, for example, with stage 3 chronic kidney disease, and we are seeing evidence that if patients have diabetes, the anemia for any level of chronic kidney disease seems to be worse than the nondiabetic patient, and of course there is this anemia of chronic disease to begin with that our patients with diabetes have, and then when the kidney disease sets in, there are problems with synthesis, as you know, of erythropoietin, and so that complicates the issue, . Dr. Singh: Mark, do you refer patients once they develop anemia or do you manage the anemia yourself in your own practice? Dr. Molitch: Well I think in our practice and probably in most endocrine practices, by the time we find the patient whose hemoglobin is getting less than 11 and we start thinking about erythropoietin [EPO], we have generally been referring that patient to the nephrologist.Slide 10. TREAT Study Design this is a randomized prospective study looking at the effects of erythropoietin supplementation, trying to get the hemoglobin levels up. Slide 12. Diabetologists and Nephrologists Working Together Dr. Singh: In my own nephrology practice, I tend not to spend a lot of time thinking about different types of insulin, so I would imagine that Willa, you also don't think about all the newer erythropoietins that are coming out since you have such a strong nephrology division at UCLA. Dr. Hsueh: Well, like Mark, with erythropoietin, we're actually when we feel patients need that, we actually call our nephrology colleagues and, as you said, they have a very strong background. What I'm amazed at is that our nephrology colleagues, once the GFR is somewhere around 30 or less, they take over full management, so they actually have to know about insulins and know about other issues. %%Slide 15. Managing Patients With Diabetes and CKD Dr. Singh: So what are your top 2 or 3 things that nowadays in 2007 you think about in managing patients with diabetes who have chronic kidney disease? Do you, as Mark is alluding to, manage their lipids more aggressively, their hypoparathyroidism, or do you feel that these areas still represent controversial issues? Dr. Hsueh: Well, as I said, we would see these patients more in stage 2, stage 3, and maybe the beginning of stage 4, and I manage their cardiovascular risk, hypertension especially, very aggressively because I know that whatever changes in blood pressure happen have great impact on the kidney. The lipids I'm concerned with, but I'm aware of the studies you said, and then the question is the role of vitamin D because there's very intriguing information that not only is it good for the calcium-phosphorus changes but also it may have anti-inflammatory effects; and there are a number of studies at UCLA, then of course the whole issue of anemia, and in patients with heart disease, of course you want to provide oxygen but you don't want to provide so many red cells that you get thrombosis formation. Dr. Singh: So, Mark, do you think that diabetologists and nephrologists can work together in managing these important conditions or is there hope for us to work together? Dr. Molitch: Well absolutely I think it's almost a natural combination, but I think one of the things we have to do is keep working together, and so it's not a hand off, it's a continued comanagement of the patients even once they get on dialysis. I think the diabetologists can lend a hand in trying to help manage their diabetes even at that point. ..Dr. Singh: So management of anemia and diabetes and kidney disease are interrelated and now one can manage them in a diabetes center in a collaborative fashion or one can refer these patients but it seems like one of the key issues is to certainly manage them, to recognize it early and manage them. Slide 16. Management of Dialysis Patients With Diabetes One quick question I have before we summarize is what about the dialysis patient - do you tend to have them come back to your diabetes center or diabetes practice and continue to follow them or is it your observation that most of these patients get managed wholly by the nephrologist when they reach end-stage renal disease? Dr. Hsueh: Well I'm happy because there are more oral agents now on board that we can use in dialysis patients, for example, in addition to insulin, .. We now have sitagliptin or Januvia,.. you have to adjust the dose, but it's a DPP-4 inhibitor that works on the incretin pathway. We have the TZDs [thiazolidinediones] which can be used all the way through to end-stage kidney disease. And, of course, we have acarbose, which mainly works on the gut and just slows, doesn't inhibit, just slows carbohydrate absorption. So you actually have 3 oral agents that you can mix and match in patients with chronic kidney disease and then you have insulin, so I think we've broadened the horizons for patients with CKD. %% Slide 17. Summary and Closing Comments Dr. Singh: So it sounds like nephrologists need to learn more about how to manage diabetes with different types of insulins and oral agents and diabetologists need to learn to manage perhaps a little bit more about the comorbidities of kidney disease such as hypoparathyroidism and lipid abnormalities but also anemia. And whether you refer these patients or you manage them in the diabetes center, the key is to try to manage them together. Dr. Hsueh: Well, we're waiting for you to do the studies to tell us what level of hemoglobin should we intervene, when should we intervene with vitamin D; of course, both of those studies are ongoing. Dr. Singh: Right. Well, that was, I think, a very productive discussion, and I'd like to thank Dr. Hsueh and Dr. Molitch for participating. I think we achieved our objectives of discussing the interrelatedness of anemia, diabetes, and chronic kidney disease. I also believe that we really brought out the notion that diabetologists and nephrologists need to work together in both early recognition and then subsequent management of these patients. Supported by an independent educational grant from Roche 2.%% Notice: The LightHouse for the Blind and Visually Impaired will be hosting several informational survey interviews on talking glucose meters and adaptive insulin syringe devices. These interview sessions will be conducted in conjunction with a doctorial student from UC Berkeley. The focus of the interviews is to collect data concerning talking glucose meters and adaptive insulin syringe devices. The interview will take between 60 to 90 minutes in San Francisco and there will be a $40 honorarium for those who participate. The participants must be diabetic and have used or currently use a talking glucose meter. If you know of individuals who may qualify please contact Beth Berenson at The LightHouse, Phone: or via email at: 3.%% Medscape - Metabolic Syndrome Linked to Chronic Kidney Disease (Reuters Health) Jul 24 - A study of a Chinese population aged 40 years and older found an association between metabolic syndrome and chronic kidney disease. (CKD) Metabolic syndrome " is a common disorder in developed countries, " note the researchers. " With its dramatic economic development and the consequent changes in lifestyle and diet, China too has seen the metabolic syndrome become an important health care problem. " [2310 people; cross-sectional study; mean age 60.7 years,] The overall prevalence of metabolic syndrome was 34.1%, and the overall prevalence of CKD was 10.7%. The prevalence of CKD was higher among subjects with metabolic syndrome than those without metabolic syndrome (15.4% versus 8.3%, respectively. " Further studies are needed to determine if treatment of metabolic syndrome could substantially ease the burden of CKD in China, " the team concludes. Mayo Clin Proc 2007;82 4.%% In Diabetes Today 23-JUL-2007 - Hepatitis C Strongly Linked to Type 2 Diabetes (Reuters Health) - People infected with hepatitis C virus have an increased risk of developing type 2, or " adult-onset " diabetes, a population-based study confirms. This risk is particularly high in younger people who are overweight, researchers have found. Therefore, screening for and preventing diabetes in persons with HCV infection could be started earlier than the suggested age of 45 or older, which is the recommendation for the general population, especially for patients with are heavier or who have other diabetes risk factors for diabetes, the team writes. [4,958 people age 40 or older without diabetes, 3,486 tested negative and 812 positive for HCV; 116 subjects were infected with both HCV and HCV; 544 tested positive for hepatitis B; 7 year follow up] After adjusting the data to account for established diabetes risk factors, the incidence of DM was 70 percent higher in persons with HCV infection than in those without it. " This finding is consistent with past studies showing that HCV infection is highly associated with diabetes. " the younger group with HCV infection was at greater risk for the disease, they note. HCV infection plus being overweight or obese magnified the risk of diabetes by about three times compared with uninfected persons of normal weight. American Journal of Epidemiology, July 15, 2007. 5.%% TimesSelect F.D.A. Review Criticizes Diabetes Drug and Maker July 26, 2007 Patients who take Avandia, a popular but controversial diabetes medicine made by GlaxoKline, [GSK] are far more likely to suffer and die from heart problems than those who take Actos, a similar pill made by Takeda, according to federal drug reviewers. Avandia is particularly dangerous to patients who also take insulin. By contrast, Actos can be taken safely with insulin, according to the review. The findings likely spell the end of Avandia's status as one of the nation's most popular drugs for treating diabetics who are not dependent on insulin. Last year, more than a million patients in the US took Avandia, and a similar number took Actos. Avandia's 2006 global sales were nearly $3.4 billion. The report and charges that GSK sought to intimidate a doctor who publicly warned about Avandia's risks in 1999 could lead to a cascade of lawsuits against the company. Indeed, F.D.A. reviewers were sharply critical of the quality of the studies GSK has undertaken to test the safety of Avandia, dismissing the present and future results of an ongoing 4,000-patient trial as unreliable and invalid. The report by medical and safety reviewers within the FDA also provides ammunition to critics on Capitol Hill and elsewhere who claim that top F.D.A. officials have been far too slow to acknowledge Avandia's risks. GlaxoKline suggested a year ago that the agency add a note to the drug's label about Avandia's growing heart risks, the report states. These conclusions come in a 436-page compendium of reviews released in advance of an advisory committee hearing to be held on Monday to discuss Avandia's effects on the heart. The F.D.A. intends to ask the committee of independent experts whether Avandia should continue to be sold. It is far from clear, F.D.A. safety reviewers concluded in the report, whether taking Avandia, also known as rosiglitazone, is worth the risk. " A critical question to be resolved in determining appropriate regulatory action is whether the anticipated therapeutic benefit of rosiglitazone outweighs the demonstrated cardiovascular risk, " one F.D.A. reviewer concluded. 6.%% Medscape - Corneal Sensitivity Is Linked to Diabetic Neuropathy (Reuters Health) Jul 26 - Results of a new study suggest that corneal sensitivity is reduced in diabetic patients, and is related to the severity of neuropathy. " In diabetic patients, corneal sensitivity is reduced, due to a loss of corneal nerve fibers, which leads to corneal keratopathy and a susceptibility to injury, with recurrent erosions and ulcers, " researchers write . Corneal sensation, they add, can be evaluated using the Cochet-Bonnet aesthesiometer (C-BA) or the noncontact corneal aesthesiometer (NCCA). They examined corneal sensitivity in 147 diabetic patients and 18 controls using these approaches and also assessed neuropathy deficit score. Neuropathy was classified as being absent, mild, moderate or severe. No significant differences in age, type of diabetes, and A1C were observed among the groups. The duration of diabetes increased with neuropathic severity. Corneal sensitivity was significantly reduced in patients with diabetes compared with controls. It was not reduced in diabetic patients without neuropathy. However, a significant reduction was observed in those with any degree of neuropathy. A significant correlation was observed between neuropathy established by C-BA and NCCA. The findings, the investigators conclude " have important clinical implications regarding the development of corneal abnormalities in diabetic patients and also raise the possibility that corneal sensation could be used to screen for diabetic neuropathy. " Diabetes Care 2007;30 7.%% Medical News Today - Improving Heart Health In Kids With Diabetes Type 1: The More They Exercise, The Lower The Risk Of Early Death 28 Jul 2007 It's never too early to focus on how to maintain good cardiovascular health, especially for people with type 1. A study published in the August issue of Diabetes Care underscores the need for regular physical activity among youth, finding that the more active the child, the better the child's cardiovascular risk profile. Heart disease is the number one killer of people with diabetes. Among type 1 patients as young as 20-39 years, the risk of dying from cardio- and cerebrovascular events is five times higher than it is for people who don't have diabetes. Previous studies have shown that the development of atherosclerotic lesions begins in childhood and that 69 percent of pediatric patients with type 1 diabetes exhibit one or more cardiovascular risk factors. A new study by researchers in Germany and Austria, which looked at the physical activity levels and cardiovascular health of more than 23,000 young people between the ages of 3 and 18, found that those who were most physically active were the least likely to be at risk for heart disease. As physical activity levels rose, risk factors such as high lipid profiles, diastolic blood pressure, and blood glucose levels fell. Regular physical activity was defined as exercising for at least 30 minutes at a time, not including school sports. The study found that those who were active at least once or twice per week were also less likely to have high blood pressure than those who didn't exercise at all. And, it showed that the frequency of regular physical activity " was one of the most important influencing factors for HbA1c. " The A1c test measures average blood glucose levels over a period of 2-3 months and helps a person with diabetes determine how well they are keeping blood glucose levels under control overall. 8.%% Medscape Medical News - The Choice of a Metabolic Syndrome Generation: Soft Drink Consumption Associated With Increased Metabolic Risk [for another version of this see DRList 7-24-07] July 25, 2007 - Drinking more than one soft drink daily is associated with a higher risk of developing adverse metabolic traits, as well as developing the metabolic syndrome, a new study has shown. Interestingly, it doesn't matter if the soda consumed is the diet variety, those with zero calories, as investigators showed these also increased the burden of metabolic risk in middle-aged adults. " That was one of the more striking aspects of this study, " lead investigator Dr R. Vasan (Boston University School of Medicine, MA) told heartwire. . " It actually doesn't matter if the soft drink is regular or diet. There was an association of increased risk of developing the metabolic syndrome with both types of drinks. " Vasan said that the consumption of soft drinks has doubled to tripled between 1977 and 2001. During this same time period, soft-drink sizes have also increased to staggering proportions. With evidence that soft-drink consumption is linked with weight gain and obesity as well as an increased risk of diabetes, the investigators questioned whether soft-drink consumption in adults, in amounts that are seemingly innocuous, like one per day, posed any metabolic hazard. The team related the incidence of metabolic syndrome and its components to soft-drink consumption in more than 6000 individuals participating in the Framingham Heart Study. In a cross-sectional analysis of the data, investigators report that those consuming more than one soft drink daily had a 48% higher prevalence of metabolic syndrome than those who drank less than one soft drink per day. In a longitudinal analysis of more than 6000 subjects free from metabolic syndrome at baseline, drinking more than one soft drink daily was associated with a 44% greater risk of developing metabolic syndrome and with developing 4 out of 5 components of metabolic syndrome. In a smaller sample of participants who had data available regarding the type of soft drink consumed, researchers observed that that those who consumed one or more drinks of diet or regular soda per day had a 50% to 60% increased risk of developing new-onset metabolic syndrome. Despite the fact that diet soda has zero calories, the findings are not entirely surprising, said Vasan, as diet soft drinks have been previously linked with poor health outcomes in children, such as weight gain and high blood pressure. In terms of theories explaining the association between soft-drink consumption and the metabolic syndrome risk, Vasan said there are no definitive answers yet. .it might be a lifestyle/dietary background thing driving this. " In addition, Vasan said diet soda might also induce a conditioning response in which the soft drinks promote a dietary preference for sweeter foods. Also, because diet soda is liquid, this has the effect of individuals eating more at the next meal, mainly because liquids are not as satiating. And finally, the brown caramel in soda has been linked with tissue damage and inflammation, which might contribute to the increased risk. All of these theories, however, are debated in literature. " Clearly, these findings are sufficiently intriguing that scientists now have to help us understand better why we see this association, " said Vasan. " We are not inferring causality from this analysis. It is just an association, so we need to turn to the scientists who are better positioned to help us understand the association more. " Circulation. Published online July 23, 2007. 9.%% -FDA Advisory Panels Acknowledge Signal of Risk With Rosiglitazone, but Stop Short of Recommending Its Withdrawal Wood Heartwire 2007. C 2007 Medscape July 31, 2007 - Rosiglitazone (Avandia, GlaxoKline [GSK]) is associated with a clear signal of cardiac ischemic risk in type 2 diabetics, the available data suggest, but this signal is not enough to justify yanking the drug from the market. This was the near-unanimous conclusion of the FDA's joint Endocrinologic and Metabolic Drugs/Drug Safety and Risk Management advisory committees at Monday's hearing. A long day of confusing, often conflicting data was capped by the seemingly inconsistent conclusions of the committee members who agreed 20:3 with the statement that available studies supported a signal of harm, but voted 22:1 to keep rosiglitazone on the market. Dr Pickering who was one of the three members who did not agree that there was a clear increased risk of ischemic events, pointed to the apparent contradiction: " I'm puzzled as to how people can vote yes for both questions, " he mused. But the vast majority of voting members on the panel seemed to agree with the sentiment raised repeatedly by presenters, panelists, and open public-hearing speakers, that it was important for physicians to have rosiglitazone in their arsenal of treatments for type 2. Indeed, some of the day's discussion revolved around an emerging hypothesis that the other thiazolidinedione (TZD) on the market, pioglitazone [Actos], might not carry the same safety concerns as rosiglitazone. Those data, however, comes predominantly from an as-yet unpublished analysis conducted by pioglitazone manufacturer Takeda, and has not yet been reviewed by the FDA, nor was it provided in full to panel members. A review of that data, was on track to be completed in time for the panel's review of the cardiovascular ischemic/thrombotic risks of TZDs, which had originally been scheduled for later in the year. The hearing, however, was bumped up after the publication of a controversial meta-analysis in the New England Journal of Medicine (NEJM) [1]--pointing to a significant 43% increase in myocardial infarction with rosiglitazone. During today's session, panel members heard from the sponsor and the FDA, both of whom had conducted their own meta-analyses of the randomized controlled trial data and turned up findings that were surprisingly consistent with the NEJM analysis--a 40% increased risk of serious ischemic events by the FDA's reckoning and a 31% increase in myocardial ischemic events in GSK's meta-analysis. All of the yes-votes reiterated the same concerns: that the evidence linking rosiglitazone with increased risk of cardiovascular death or MI was weak or inconsistent, particularly in trials that had active control arms rather than placebo comparators; that ischemic risk appeared higher in older patients, patients with heart failure, patients with preexisting coronary disease, and patients taking insulin--and that this should be reflected in the labeling. In fact, several panelists pointed out that current labeling lists rosiglitazone as being indicated for diabetics taking insulin; they felt this should be removed and a black box should be added warning against its use in this group. Others emphasized that the inconclusiveness of the existing studies and the fact that trials are still ongoing should also be mentioned in the packaging. But time and again, the experts on the panel bemoaned the fact that, not for the first time, the FDA had not had the foresight to mandate appropriate trials, leaving the committees to try to draw conclusions from meta-analyses and observational studies. Even the ongoing RECORD, ACCORD, and BARI-2D trials, by the FDA's own review, are underpowered or not designed to answer key questions about whether ischemic events will be higher than with other diabetes drugs, and if they are, which patient subsets will be affected. The mere fact that most of the studies included in the meta-analyses were only six months in duration underscores the paucity of solid information. The sole no-vote on the key question of whether rosiglitazone should remain on the market came from Dr Arthur Levin (Center for Medical Consumers, New York, NY). " It seems to me that given the evidence of a strong safety signal, given the fact that around this table and at the FDA there are doubts about the ability of ongoing clinical trials to definitively answer the question about the CV safety of the drug, and given the enormity of the potential public health risk of allowing this drug to continue to be marketed and used by millions of people for the rest of their lives, I logically can't find any way to justify leaving this drug on the market. " Levin's opinions have the support of at least two FDA insiders, Dr Gerald Dal Pan and Dr Graham , both in the FDA's Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research. Graham presented a risk/benefit assessment of rosiglitazone, pointing out that although his views were his own, his findings had been reviewed and were supported by others in his department, such that he was not just speaking as " Graham the FDA Whistle-Blower. " Graham showed projections to back up his claim that ongoing studies " will not change our state of knowledge... Graham's concerns about the quality of the existing rosiglitazone data, and the flawed studies in progress, struck a chord with panel members, who called for stricter standards for pre-approval and post-marketing studies. " I would have to say, the FDA has to take some responsibility for the dilemma in which we find ourselves, for approving less than optimally designed trials in the past, " Dr Arthur Moss observed. " I do think there is a problem that needs to be rectified in the future. " Vindication for Nissen Commenting on the day's deliberations to heartwire, Dr Nissen (Cleveland Clinic, OH), seemed satisfied that the FDA and sponsors' meta-analyses had confirmed his own findings. . " One concern I have is that black-box warnings do not always result in huge changes in prescribing practices, so time will tell, " he told heartwire 1. Nissen SE and Wolski K. Effect of rosiglitazone on the risk of myocardial infarction and death from cardiovascular causes. N Engl J Med 2007; 356:2457-2471. 10.%% Simultaneous Pancreas Kidney Transplantation From Old Donors Medscape Transplantation. 2007; C2007 Medscape 07/24/2007 Patient and Graft Survival Implications of Simultaneous Pancreas Kidney Transplantation From Old Donors Am J Transplant. 2007;7 Summary - The authors performed a retrospective analysis of the United Network for Organ Sharing database and identified adult patients with type 1 DM who were placed on the waiting list for simultaneous pancreas-kidney (SPK) transplantation. 8850 patients (54%) received an SPK transplant, of which 9% were from donors 45 years of age or older. Survival analyses were performed . .SPK transplantation from both young and old donors independently predicted lower mortality compared with staying on the waiting list. An additional expected wait of 1.5 years for a young donor equalized long-term survival expectations between young and old SPK donors. On the basis of these findings, the authors concluded that SPK transplantation offers a substantial survival benefit independent of donor age and should be considered for patients with decreased access to organs from young donors. Viewpoint - The critical shortage of donor organs challenges the transplant community to maximize and optimize the use of organs from all consenting deceased donors. .the profile of acceptable older donors for SPK transplantation may include female sex, low body mass index, and noncerebrovascular etiology of brain death. The patient population most likely to benefit from SPK transplantation from old donors includes either patients with limited access to timely transplantation (eg, blood type O or B, highly sensitized) or those who cannot afford to wait for an extended period of time (unstable diabetes, prolonged duration of dialysis, older age [> 50 years], known peripheral vascular or cardiovascular disease). 11.%% Medscape Medical News - Low GI Diets Better for Weight Loss, Lipid Profiles, Finds Cochrane Review July 24, 2007 - A new Cochrane review of six randomized controlled trials comparing low glycemic index (GI) or glycemic load (GL) diets with other diets has found that overweight or obese people lost more weight and had more improvement in lipid profiles with the low GI eating plans. Those on the low GI diets lost an average of 2.2 pounds (1 kg) more than those given comparison diets, which included higher GI or GL diets and conventional weight loss diets. They also had significantly better decreases in total and low-density lipoprotein (LDL) cholesterol, the researchers note. And in the two trials that evaluated only obese participants, weight loss was even more apparent - the low GI dieters lost about 9.2 pounds, compared with about 2.2 pounds shed by those on the other diets. However, the scientists caution that enduring data are still needed. " Longer trials with increased length of follow-up will determine whether the improvements reported can be maintained and incorporated into lifestyle long-term, " they say. Two experts not connected with the review expressed mixed opinions. One said this was a great review, while the other pointed out that the difference in weight loss between the low and high GI diets was rather small. The team included six trials in their review, including a total of 202 adults. The diets lasted from 5 weeks to 6 months, and none of the studies reported any adverseveffects associated with consuming a low GI diet.vAs well as losing more weight, those on the low GI diets also had significantly greatervloss of total fat mass and decrease in body mass index (BMI) than those on the comparison diets. " Considering the brevity of the interventions, the results are notable, " they add. Improvements in blood lipids were also significant. Cochrane Database Syst Rev. Published online July 18, 2007. Abbreviations: ADA - American Diabetes Association; DM - diabetes Mellitus; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities.Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thlvistacenter (DOT) <mailto:thl%40vistacenter.org> org Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 2, 2007 Report Share Posted August 2, 2007 My nephrologists handles my anemia. He does notwant my hemoglobin over 12, so depending on the blood count I have done about very 3 weeks, he lets me know if I should take my Arreness injectin or not. The last one I learned today was 11.9, so he does not want to take another shoot until I have my next hemoglobin drawn. He says that too high a hemoglobin can actually hurt the already poor kidneys. Re: articles I've been anemic for over 10 years, perhaps 15 years, running as low as 10.3 or so. At times, I have hit 12, but rarely, and I am usually around 11, plus or minus. Neither my general physician or nepthrologist are overly concerned, and attribute it to kidney dysfunction, or as in the first article, ckd. I was kind of surprised at how the doctors in this discussion seemed to be acting like low enemia was something just being discovered (in relationship to diabetes and ckd). Sometimes I really wonder about the medical field. anyway, thanks for the articles Pat. Dave articles 1. Welcome to Medscape Nephrology and to this Spotlight entitled, " Managing Anemia in Patients With Type 2 Diabetes and Chronic Kidney Disease. " I am Dr. Ajay Singh, Clinical Director at Brigham & Women's Hospital and Associate Professor of Medicine at Harvard Medical School in Boston, MA, and I will be your moderator. Slide 4. Prevalence of Diabetes and CKD Willa A. Hsueh, MD: I think all of our audience knows that diabetes is the most common cause of end stage renal disease in the US and there are about 30% to 40% of patients with type 1 DM who will go on to have chronic kidney disease and about 10% to 15%, maybe even as high as 20%, of patients with type 2 who will go on to have chronic kidney disease. Aggressive Prevention of CKD Slide 5. Aggressive Prevention of CKD I think we're all realizing, thanks to our nephrology colleagues, that as patients develop albuminuria, not only is that an important sign of kidney disease, but I think it's a sign that there may be terrible problems with the endothelium that could then lead to problems, of course, with coronary heart disease and stroke, so that should raise a red flag for all of us. In addition, I think we also know that glycemic control is very important for the microvascular complications, not just the kidney but the eye and some of the neurologic complications. So with that said, I think as endocrinologists we're really focusing on tight control early, tighter and tighter control. In fact, the recent ADA Guidelines suggest that we get our control to nearly normal in all of our patients with hemoglobins around 5.5% or less. So there's an aggressive effort, I think, to try to prevent chronic kidney disease. Unfortunately, I think some patients will not respond to some of those or comply with some of those aggressive efforts, and we will still have problems with the kidney. Slide 6. Recognizing the Complications of CKD .. the question is how do we recognize some of the complications early, that would include not just the, as we said, the coronary heart disease complications but also the anemia, the changes in type 2 hyperparathyroidism or secondary hyperparathyroidism, and issues about early interventions for the anemia, and early interventions with vitamin D therapy? Dr. Singh: One of the really important issues, of course, is the burden of cardiovascular disease in this population. Dr. Hsueh: Absolutely. Dr. Singh: It seems like a number of observational studies have indicated that at a very early stage in the syndrome of diabetic nephropathy, patients develop vascular disease and cardiovascular disease. Is it your sense that the diabetologists are now increasingly recognizing this and are becoming more aggresive in managing cardiovascular disease in this population? Dr. Hsueh: Oh absolutely, you cannot go to an endocrine meeting without hearing about the marked increased incidence of cardiovascular disease in patients with diabetes, and I think we've known for a long time that albuminuria is a key signal that heralds that, and I think you all know well that as there is a progressive decrease in glomerular filtration rate, there's a progressive increase in cardiovascular disease. %%Slide 8. Clinical Practice Guidelines for CKD and Diabetes Mark E. Molitch, MD: several things came out of reviewing the literature for those guidelines, certainly the glycemic control that Willa had talked about remains important, and even in the patient as they have advancing kidney disease, we still need to get good glycemic control to try to reduce and ameliorate some of the other long-term complications of diabetes. But as far as the cardiovascular disease goes and the lipid management, these are patients at such high risk that we recommend an LDL goal of less than 70 for those patients, obviously blood pressure treatment to get blood pressures less than 130/80 for virtually all patients with diabetes, and perhaps even more stringent goals for the patient who's getting progressive nephropathy. I think one of the things that brought home to me as we were reviewing all this, is the knowledge that's relatively new, at how early secondary hyperparathyroidism and anemia start to be found. %% Slide 9. Development of Anemia in Patients With Diabetes Dr. Singh: one of the things that I have come across in the literature is the idea that anemia tends to develop at an earlier stage in diabetics than it seems to in nondiabetics, so for any given level of GFR. What are your thoughts on that, Willa ? Dr. Hsueh: Well we're recognizing more patients, for example, with stage 3 chronic kidney disease, and we are seeing evidence that if patients have diabetes, the anemia for any level of chronic kidney disease seems to be worse than the nondiabetic patient, and of course there is this anemia of chronic disease to begin with that our patients with diabetes have, and then when the kidney disease sets in, there are problems with synthesis, as you know, of erythropoietin, and so that complicates the issue, . Dr. Singh: Mark, do you refer patients once they develop anemia or do you manage the anemia yourself in your own practice? Dr. Molitch: Well I think in our practice and probably in most endocrine practices, by the time we find the patient whose hemoglobin is getting less than 11 and we start thinking about erythropoietin [EPO], we have generally been referring that patient to the nephrologist.Slide 10. TREAT Study Design this is a randomized prospective study looking at the effects of erythropoietin supplementation, trying to get the hemoglobin levels up. Slide 12. Diabetologists and Nephrologists Working Together Dr. Singh: In my own nephrology practice, I tend not to spend a lot of time thinking about different types of insulin, so I would imagine that Willa, you also don't think about all the newer erythropoietins that are coming out since you have such a strong nephrology division at UCLA. Dr. Hsueh: Well, like Mark, with erythropoietin, we're actually when we feel patients need that, we actually call our nephrology colleagues and, as you said, they have a very strong background. What I'm amazed at is that our nephrology colleagues, once the GFR is somewhere around 30 or less, they take over full management, so they actually have to know about insulins and know about other issues. %%Slide 15. Managing Patients With Diabetes and CKD Dr. Singh: So what are your top 2 or 3 things that nowadays in 2007 you think about in managing patients with diabetes who have chronic kidney disease? Do you, as Mark is alluding to, manage their lipids more aggressively, their hypoparathyroidism, or do you feel that these areas still represent controversial issues? Dr. Hsueh: Well, as I said, we would see these patients more in stage 2, stage 3, and maybe the beginning of stage 4, and I manage their cardiovascular risk, hypertension especially, very aggressively because I know that whatever changes in blood pressure happen have great impact on the kidney. The lipids I'm concerned with, but I'm aware of the studies you said, and then the question is the role of vitamin D because there's very intriguing information that not only is it good for the calcium-phosphorus changes but also it may have anti-inflammatory effects; and there are a number of studies at UCLA, then of course the whole issue of anemia, and in patients with heart disease, of course you want to provide oxygen but you don't want to provide so many red cells that you get thrombosis formation. Dr. Singh: So, Mark, do you think that diabetologists and nephrologists can work together in managing these important conditions or is there hope for us to work together? Dr. Molitch: Well absolutely I think it's almost a natural combination, but I think one of the things we have to do is keep working together, and so it's not a hand off, it's a continued comanagement of the patients even once they get on dialysis. I think the diabetologists can lend a hand in trying to help manage their diabetes even at that point. ..Dr. Singh: So management of anemia and diabetes and kidney disease are interrelated and now one can manage them in a diabetes center in a collaborative fashion or one can refer these patients but it seems like one of the key issues is to certainly manage them, to recognize it early and manage them. Slide 16. Management of Dialysis Patients With Diabetes One quick question I have before we summarize is what about the dialysis patient - do you tend to have them come back to your diabetes center or diabetes practice and continue to follow them or is it your observation that most of these patients get managed wholly by the nephrologist when they reach end-stage renal disease? Dr. Hsueh: Well I'm happy because there are more oral agents now on board that we can use in dialysis patients, for example, in addition to insulin, .. We now have sitagliptin or Januvia,.. you have to adjust the dose, but it's a DPP-4 inhibitor that works on the incretin pathway. We have the TZDs [thiazolidinediones] which can be used all the way through to end-stage kidney disease. And, of course, we have acarbose, which mainly works on the gut and just slows, doesn't inhibit, just slows carbohydrate absorption. So you actually have 3 oral agents that you can mix and match in patients with chronic kidney disease and then you have insulin, so I think we've broadened the horizons for patients with CKD. %% Slide 17. Summary and Closing Comments Dr. Singh: So it sounds like nephrologists need to learn more about how to manage diabetes with different types of insulins and oral agents and diabetologists need to learn to manage perhaps a little bit more about the comorbidities of kidney disease such as hypoparathyroidism and lipid abnormalities but also anemia. And whether you refer these patients or you manage them in the diabetes center, the key is to try to manage them together. Dr. Hsueh: Well, we're waiting for you to do the studies to tell us what level of hemoglobin should we intervene, when should we intervene with vitamin D; of course, both of those studies are ongoing. Dr. Singh: Right. Well, that was, I think, a very productive discussion, and I'd like to thank Dr. Hsueh and Dr. Molitch for participating. I think we achieved our objectives of discussing the interrelatedness of anemia, diabetes, and chronic kidney disease. I also believe that we really brought out the notion that diabetologists and nephrologists need to work together in both early recognition and then subsequent management of these patients. Supported by an independent educational grant from Roche 2.%% Notice: The LightHouse for the Blind and Visually Impaired will be hosting several informational survey interviews on talking glucose meters and adaptive insulin syringe devices. These interview sessions will be conducted in conjunction with a doctorial student from UC Berkeley. The focus of the interviews is to collect data concerning talking glucose meters and adaptive insulin syringe devices. The interview will take between 60 to 90 minutes in San Francisco and there will be a $40 honorarium for those who participate. The participants must be diabetic and have used or currently use a talking glucose meter. If you know of individuals who may qualify please contact Beth Berenson at The LightHouse, Phone: or via email at: 3.%% Medscape - Metabolic Syndrome Linked to Chronic Kidney Disease (Reuters Health) Jul 24 - A study of a Chinese population aged 40 years and older found an association between metabolic syndrome and chronic kidney disease. (CKD) Metabolic syndrome " is a common disorder in developed countries, " note the researchers. " With its dramatic economic development and the consequent changes in lifestyle and diet, China too has seen the metabolic syndrome become an important health care problem. " [2310 people; cross-sectional study; mean age 60.7 years,] The overall prevalence of metabolic syndrome was 34.1%, and the overall prevalence of CKD was 10.7%. The prevalence of CKD was higher among subjects with metabolic syndrome than those without metabolic syndrome (15.4% versus 8.3%, respectively. " Further studies are needed to determine if treatment of metabolic syndrome could substantially ease the burden of CKD in China, " the team concludes. Mayo Clin Proc 2007;82 4.%% In Diabetes Today 23-JUL-2007 - Hepatitis C Strongly Linked to Type 2 Diabetes (Reuters Health) - People infected with hepatitis C virus have an increased risk of developing type 2, or " adult-onset " diabetes, a population-based study confirms. This risk is particularly high in younger people who are overweight, researchers have found. Therefore, screening for and preventing diabetes in persons with HCV infection could be started earlier than the suggested age of 45 or older, which is the recommendation for the general population, especially for patients with are heavier or who have other diabetes risk factors for diabetes, the team writes. [4,958 people age 40 or older without diabetes, 3,486 tested negative and 812 positive for HCV; 116 subjects were infected with both HCV and HCV; 544 tested positive for hepatitis B; 7 year follow up] After adjusting the data to account for established diabetes risk factors, the incidence of DM was 70 percent higher in persons with HCV infection than in those without it. " This finding is consistent with past studies showing that HCV infection is highly associated with diabetes. " the younger group with HCV infection was at greater risk for the disease, they note. HCV infection plus being overweight or obese magnified the risk of diabetes by about three times compared with uninfected persons of normal weight. American Journal of Epidemiology, July 15, 2007. 5.%% TimesSelect F.D.A. Review Criticizes Diabetes Drug and Maker July 26, 2007 Patients who take Avandia, a popular but controversial diabetes medicine made by GlaxoKline, [GSK] are far more likely to suffer and die from heart problems than those who take Actos, a similar pill made by Takeda, according to federal drug reviewers. Avandia is particularly dangerous to patients who also take insulin. By contrast, Actos can be taken safely with insulin, according to the review. The findings likely spell the end of Avandia's status as one of the nation's most popular drugs for treating diabetics who are not dependent on insulin. Last year, more than a million patients in the US took Avandia, and a similar number took Actos. Avandia's 2006 global sales were nearly $3.4 billion. The report and charges that GSK sought to intimidate a doctor who publicly warned about Avandia's risks in 1999 could lead to a cascade of lawsuits against the company. Indeed, F.D.A. reviewers were sharply critical of the quality of the studies GSK has undertaken to test the safety of Avandia, dismissing the present and future results of an ongoing 4,000-patient trial as unreliable and invalid. The report by medical and safety reviewers within the FDA also provides ammunition to critics on Capitol Hill and elsewhere who claim that top F.D.A. officials have been far too slow to acknowledge Avandia's risks. GlaxoKline suggested a year ago that the agency add a note to the drug's label about Avandia's growing heart risks, the report states. These conclusions come in a 436-page compendium of reviews released in advance of an advisory committee hearing to be held on Monday to discuss Avandia's effects on the heart. The F.D.A. intends to ask the committee of independent experts whether Avandia should continue to be sold. It is far from clear, F.D.A. safety reviewers concluded in the report, whether taking Avandia, also known as rosiglitazone, is worth the risk. " A critical question to be resolved in determining appropriate regulatory action is whether the anticipated therapeutic benefit of rosiglitazone outweighs the demonstrated cardiovascular risk, " one F.D.A. reviewer concluded. 6.%% Medscape - Corneal Sensitivity Is Linked to Diabetic Neuropathy (Reuters Health) Jul 26 - Results of a new study suggest that corneal sensitivity is reduced in diabetic patients, and is related to the severity of neuropathy. " In diabetic patients, corneal sensitivity is reduced, due to a loss of corneal nerve fibers, which leads to corneal keratopathy and a susceptibility to injury, with recurrent erosions and ulcers, " researchers write . Corneal sensation, they add, can be evaluated using the Cochet-Bonnet aesthesiometer (C-BA) or the noncontact corneal aesthesiometer (NCCA). They examined corneal sensitivity in 147 diabetic patients and 18 controls using these approaches and also assessed neuropathy deficit score. Neuropathy was classified as being absent, mild, moderate or severe. No significant differences in age, type of diabetes, and A1C were observed among the groups. The duration of diabetes increased with neuropathic severity. Corneal sensitivity was significantly reduced in patients with diabetes compared with controls. It was not reduced in diabetic patients without neuropathy. However, a significant reduction was observed in those with any degree of neuropathy. A significant correlation was observed between neuropathy established by C-BA and NCCA. The findings, the investigators conclude " have important clinical implications regarding the development of corneal abnormalities in diabetic patients and also raise the possibility that corneal sensation could be used to screen for diabetic neuropathy. " Diabetes Care 2007;30 7.%% Medical News Today - Improving Heart Health In Kids With Diabetes Type 1: The More They Exercise, The Lower The Risk Of Early Death 28 Jul 2007 It's never too early to focus on how to maintain good cardiovascular health, especially for people with type 1. A study published in the August issue of Diabetes Care underscores the need for regular physical activity among youth, finding that the more active the child, the better the child's cardiovascular risk profile. Heart disease is the number one killer of people with diabetes. Among type 1 patients as young as 20-39 years, the risk of dying from cardio- and cerebrovascular events is five times higher than it is for people who don't have diabetes. Previous studies have shown that the development of atherosclerotic lesions begins in childhood and that 69 percent of pediatric patients with type 1 diabetes exhibit one or more cardiovascular risk factors. A new study by researchers in Germany and Austria, which looked at the physical activity levels and cardiovascular health of more than 23,000 young people between the ages of 3 and 18, found that those who were most physically active were the least likely to be at risk for heart disease. As physical activity levels rose, risk factors such as high lipid profiles, diastolic blood pressure, and blood glucose levels fell. Regular physical activity was defined as exercising for at least 30 minutes at a time, not including school sports. The study found that those who were active at least once or twice per week were also less likely to have high blood pressure than those who didn't exercise at all. And, it showed that the frequency of regular physical activity " was one of the most important influencing factors for HbA1c. " The A1c test measures average blood glucose levels over a period of 2-3 months and helps a person with diabetes determine how well they are keeping blood glucose levels under control overall. 8.%% Medscape Medical News - The Choice of a Metabolic Syndrome Generation: Soft Drink Consumption Associated With Increased Metabolic Risk [for another version of this see DRList 7-24-07] July 25, 2007 - Drinking more than one soft drink daily is associated with a higher risk of developing adverse metabolic traits, as well as developing the metabolic syndrome, a new study has shown. Interestingly, it doesn't matter if the soda consumed is the diet variety, those with zero calories, as investigators showed these also increased the burden of metabolic risk in middle-aged adults. " That was one of the more striking aspects of this study, " lead investigator Dr R. Vasan (Boston University School of Medicine, MA) told heartwire. . " It actually doesn't matter if the soft drink is regular or diet. There was an association of increased risk of developing the metabolic syndrome with both types of drinks. " Vasan said that the consumption of soft drinks has doubled to tripled between 1977 and 2001. During this same time period, soft-drink sizes have also increased to staggering proportions. With evidence that soft-drink consumption is linked with weight gain and obesity as well as an increased risk of diabetes, the investigators questioned whether soft-drink consumption in adults, in amounts that are seemingly innocuous, like one per day, posed any metabolic hazard. The team related the incidence of metabolic syndrome and its components to soft-drink consumption in more than 6000 individuals participating in the Framingham Heart Study. In a cross-sectional analysis of the data, investigators report that those consuming more than one soft drink daily had a 48% higher prevalence of metabolic syndrome than those who drank less than one soft drink per day. In a longitudinal analysis of more than 6000 subjects free from metabolic syndrome at baseline, drinking more than one soft drink daily was associated with a 44% greater risk of developing metabolic syndrome and with developing 4 out of 5 components of metabolic syndrome. In a smaller sample of participants who had data available regarding the type of soft drink consumed, researchers observed that that those who consumed one or more drinks of diet or regular soda per day had a 50% to 60% increased risk of developing new-onset metabolic syndrome. Despite the fact that diet soda has zero calories, the findings are not entirely surprising, said Vasan, as diet soft drinks have been previously linked with poor health outcomes in children, such as weight gain and high blood pressure. In terms of theories explaining the association between soft-drink consumption and the metabolic syndrome risk, Vasan said there are no definitive answers yet. .it might be a lifestyle/dietary background thing driving this. " In addition, Vasan said diet soda might also induce a conditioning response in which the soft drinks promote a dietary preference for sweeter foods. Also, because diet soda is liquid, this has the effect of individuals eating more at the next meal, mainly because liquids are not as satiating. And finally, the brown caramel in soda has been linked with tissue damage and inflammation, which might contribute to the increased risk. All of these theories, however, are debated in literature. " Clearly, these findings are sufficiently intriguing that scientists now have to help us understand better why we see this association, " said Vasan. " We are not inferring causality from this analysis. It is just an association, so we need to turn to the scientists who are better positioned to help us understand the association more. " Circulation. Published online July 23, 2007. 9.%% -FDA Advisory Panels Acknowledge Signal of Risk With Rosiglitazone, but Stop Short of Recommending Its Withdrawal Wood Heartwire 2007. C 2007 Medscape July 31, 2007 - Rosiglitazone (Avandia, GlaxoKline [GSK]) is associated with a clear signal of cardiac ischemic risk in type 2 diabetics, the available data suggest, but this signal is not enough to justify yanking the drug from the market. This was the near-unanimous conclusion of the FDA's joint Endocrinologic and Metabolic Drugs/Drug Safety and Risk Management advisory committees at Monday's hearing. A long day of confusing, often conflicting data was capped by the seemingly inconsistent conclusions of the committee members who agreed 20:3 with the statement that available studies supported a signal of harm, but voted 22:1 to keep rosiglitazone on the market. Dr Pickering who was one of the three members who did not agree that there was a clear increased risk of ischemic events, pointed to the apparent contradiction: " I'm puzzled as to how people can vote yes for both questions, " he mused. But the vast majority of voting members on the panel seemed to agree with the sentiment raised repeatedly by presenters, panelists, and open public-hearing speakers, that it was important for physicians to have rosiglitazone in their arsenal of treatments for type 2. Indeed, some of the day's discussion revolved around an emerging hypothesis that the other thiazolidinedione (TZD) on the market, pioglitazone [Actos], might not carry the same safety concerns as rosiglitazone. Those data, however, comes predominantly from an as-yet unpublished analysis conducted by pioglitazone manufacturer Takeda, and has not yet been reviewed by the FDA, nor was it provided in full to panel members. A review of that data, was on track to be completed in time for the panel's review of the cardiovascular ischemic/thrombotic risks of TZDs, which had originally been scheduled for later in the year. The hearing, however, was bumped up after the publication of a controversial meta-analysis in the New England Journal of Medicine (NEJM) [1]--pointing to a significant 43% increase in myocardial infarction with rosiglitazone. During today's session, panel members heard from the sponsor and the FDA, both of whom had conducted their own meta-analyses of the randomized controlled trial data and turned up findings that were surprisingly consistent with the NEJM analysis--a 40% increased risk of serious ischemic events by the FDA's reckoning and a 31% increase in myocardial ischemic events in GSK's meta-analysis. All of the yes-votes reiterated the same concerns: that the evidence linking rosiglitazone with increased risk of cardiovascular death or MI was weak or inconsistent, particularly in trials that had active control arms rather than placebo comparators; that ischemic risk appeared higher in older patients, patients with heart failure, patients with preexisting coronary disease, and patients taking insulin--and that this should be reflected in the labeling. In fact, several panelists pointed out that current labeling lists rosiglitazone as being indicated for diabetics taking insulin; they felt this should be removed and a black box should be added warning against its use in this group. Others emphasized that the inconclusiveness of the existing studies and the fact that trials are still ongoing should also be mentioned in the packaging. But time and again, the experts on the panel bemoaned the fact that, not for the first time, the FDA had not had the foresight to mandate appropriate trials, leaving the committees to try to draw conclusions from meta-analyses and observational studies. Even the ongoing RECORD, ACCORD, and BARI-2D trials, by the FDA's own review, are underpowered or not designed to answer key questions about whether ischemic events will be higher than with other diabetes drugs, and if they are, which patient subsets will be affected. The mere fact that most of the studies included in the meta-analyses were only six months in duration underscores the paucity of solid information. The sole no-vote on the key question of whether rosiglitazone should remain on the market came from Dr Arthur Levin (Center for Medical Consumers, New York, NY). " It seems to me that given the evidence of a strong safety signal, given the fact that around this table and at the FDA there are doubts about the ability of ongoing clinical trials to definitively answer the question about the CV safety of the drug, and given the enormity of the potential public health risk of allowing this drug to continue to be marketed and used by millions of people for the rest of their lives, I logically can't find any way to justify leaving this drug on the market. " Levin's opinions have the support of at least two FDA insiders, Dr Gerald Dal Pan and Dr Graham , both in the FDA's Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research. Graham presented a risk/benefit assessment of rosiglitazone, pointing out that although his views were his own, his findings had been reviewed and were supported by others in his department, such that he was not just speaking as " Graham the FDA Whistle-Blower. " Graham showed projections to back up his claim that ongoing studies " will not change our state of knowledge... Graham's concerns about the quality of the existing rosiglitazone data, and the flawed studies in progress, struck a chord with panel members, who called for stricter standards for pre-approval and post-marketing studies. " I would have to say, the FDA has to take some responsibility for the dilemma in which we find ourselves, for approving less than optimally designed trials in the past, " Dr Arthur Moss observed. " I do think there is a problem that needs to be rectified in the future. " Vindication for Nissen Commenting on the day's deliberations to heartwire, Dr Nissen (Cleveland Clinic, OH), seemed satisfied that the FDA and sponsors' meta-analyses had confirmed his own findings. . " One concern I have is that black-box warnings do not always result in huge changes in prescribing practices, so time will tell, " he told heartwire 1. Nissen SE and Wolski K. Effect of rosiglitazone on the risk of myocardial infarction and death from cardiovascular causes. N Engl J Med 2007; 356:2457-2471. 10.%% Simultaneous Pancreas Kidney Transplantation From Old Donors Medscape Transplantation. 2007; C2007 Medscape 07/24/2007 Patient and Graft Survival Implications of Simultaneous Pancreas Kidney Transplantation From Old Donors Am J Transplant. 2007;7 Summary - The authors performed a retrospective analysis of the United Network for Organ Sharing database and identified adult patients with type 1 DM who were placed on the waiting list for simultaneous pancreas-kidney (SPK) transplantation. 8850 patients (54%) received an SPK transplant, of which 9% were from donors 45 years of age or older. Survival analyses were performed . .SPK transplantation from both young and old donors independently predicted lower mortality compared with staying on the waiting list. An additional expected wait of 1.5 years for a young donor equalized long-term survival expectations between young and old SPK donors. On the basis of these findings, the authors concluded that SPK transplantation offers a substantial survival benefit independent of donor age and should be considered for patients with decreased access to organs from young donors. Viewpoint - The critical shortage of donor organs challenges the transplant community to maximize and optimize the use of organs from all consenting deceased donors. .the profile of acceptable older donors for SPK transplantation may include female sex, low body mass index, and noncerebrovascular etiology of brain death. The patient population most likely to benefit from SPK transplantation from old donors includes either patients with limited access to timely transplantation (eg, blood type O or B, highly sensitized) or those who cannot afford to wait for an extended period of time (unstable diabetes, prolonged duration of dialysis, older age [> 50 years], known peripheral vascular or cardiovascular disease). 11.%% Medscape Medical News - Low GI Diets Better for Weight Loss, Lipid Profiles, Finds Cochrane Review July 24, 2007 - A new Cochrane review of six randomized controlled trials comparing low glycemic index (GI) or glycemic load (GL) diets with other diets has found that overweight or obese people lost more weight and had more improvement in lipid profiles with the low GI eating plans. Those on the low GI diets lost an average of 2.2 pounds (1 kg) more than those given comparison diets, which included higher GI or GL diets and conventional weight loss diets. They also had significantly better decreases in total and low-density lipoprotein (LDL) cholesterol, the researchers note. And in the two trials that evaluated only obese participants, weight loss was even more apparent - the low GI dieters lost about 9.2 pounds, compared with about 2.2 pounds shed by those on the other diets. However, the scientists caution that enduring data are still needed. " Longer trials with increased length of follow-up will determine whether the improvements reported can be maintained and incorporated into lifestyle long-term, " they say. Two experts not connected with the review expressed mixed opinions. One said this was a great review, while the other pointed out that the difference in weight loss between the low and high GI diets was rather small. The team included six trials in their review, including a total of 202 adults. The diets lasted from 5 weeks to 6 months, and none of the studies reported any adverseveffects associated with consuming a low GI diet.vAs well as losing more weight, those on the low GI diets also had significantly greatervloss of total fat mass and decrease in body mass index (BMI) than those on the comparison diets. " Considering the brevity of the interventions, the results are notable, " they add. Improvements in blood lipids were also significant. Cochrane Database Syst Rev. Published online July 18, 2007. Abbreviations: ADA - American Diabetes Association; DM - diabetes Mellitus; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities.Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thlvistacenter (DOT) <mailto:thl%40vistacenter.org> org Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 2, 2007 Report Share Posted August 2, 2007 I was not aware that the hemoglobin being too high could be a problem. I'll have to bring that up with my doc and my nepthrologist the next time I see them. Thanks. Dave articles 1. Welcome to Medscape Nephrology and to this Spotlight entitled, " Managing Anemia in Patients With Type 2 Diabetes and Chronic Kidney Disease. " I am Dr. Ajay Singh, Clinical Director at Brigham & Women's Hospital and Associate Professor of Medicine at Harvard Medical School in Boston, MA, and I will be your moderator. Slide 4. Prevalence of Diabetes and CKD Willa A. Hsueh, MD: I think all of our audience knows that diabetes is the most common cause of end stage renal disease in the US and there are about 30% to 40% of patients with type 1 DM who will go on to have chronic kidney disease and about 10% to 15%, maybe even as high as 20%, of patients with type 2 who will go on to have chronic kidney disease. Aggressive Prevention of CKD Slide 5. Aggressive Prevention of CKD I think we're all realizing, thanks to our nephrology colleagues, that as patients develop albuminuria, not only is that an important sign of kidney disease, but I think it's a sign that there may be terrible problems with the endothelium that could then lead to problems, of course, with coronary heart disease and stroke, so that should raise a red flag for all of us. In addition, I think we also know that glycemic control is very important for the microvascular complications, not just the kidney but the eye and some of the neurologic complications. So with that said, I think as endocrinologists we're really focusing on tight control early, tighter and tighter control. In fact, the recent ADA Guidelines suggest that we get our control to nearly normal in all of our patients with hemoglobins around 5.5% or less. So there's an aggressive effort, I think, to try to prevent chronic kidney disease. Unfortunately, I think some patients will not respond to some of those or comply with some of those aggressive efforts, and we will still have problems with the kidney. Slide 6. Recognizing the Complications of CKD .. the question is how do we recognize some of the complications early, that would include not just the, as we said, the coronary heart disease complications but also the anemia, the changes in type 2 hyperparathyroidism or secondary hyperparathyroidism, and issues about early interventions for the anemia, and early interventions with vitamin D therapy? Dr. Singh: One of the really important issues, of course, is the burden of cardiovascular disease in this population. Dr. Hsueh: Absolutely. Dr. Singh: It seems like a number of observational studies have indicated that at a very early stage in the syndrome of diabetic nephropathy, patients develop vascular disease and cardiovascular disease. Is it your sense that the diabetologists are now increasingly recognizing this and are becoming more aggresive in managing cardiovascular disease in this population? Dr. Hsueh: Oh absolutely, you cannot go to an endocrine meeting without hearing about the marked increased incidence of cardiovascular disease in patients with diabetes, and I think we've known for a long time that albuminuria is a key signal that heralds that, and I think you all know well that as there is a progressive decrease in glomerular filtration rate, there's a progressive increase in cardiovascular disease. %%Slide 8. Clinical Practice Guidelines for CKD and Diabetes Mark E. Molitch, MD: several things came out of reviewing the literature for those guidelines, certainly the glycemic control that Willa had talked about remains important, and even in the patient as they have advancing kidney disease, we still need to get good glycemic control to try to reduce and ameliorate some of the other long-term complications of diabetes. But as far as the cardiovascular disease goes and the lipid management, these are patients at such high risk that we recommend an LDL goal of less than 70 for those patients, obviously blood pressure treatment to get blood pressures less than 130/80 for virtually all patients with diabetes, and perhaps even more stringent goals for the patient who's getting progressive nephropathy. I think one of the things that brought home to me as we were reviewing all this, is the knowledge that's relatively new, at how early secondary hyperparathyroidism and anemia start to be found. %% Slide 9. Development of Anemia in Patients With Diabetes Dr. Singh: one of the things that I have come across in the literature is the idea that anemia tends to develop at an earlier stage in diabetics than it seems to in nondiabetics, so for any given level of GFR. What are your thoughts on that, Willa ? Dr. Hsueh: Well we're recognizing more patients, for example, with stage 3 chronic kidney disease, and we are seeing evidence that if patients have diabetes, the anemia for any level of chronic kidney disease seems to be worse than the nondiabetic patient, and of course there is this anemia of chronic disease to begin with that our patients with diabetes have, and then when the kidney disease sets in, there are problems with synthesis, as you know, of erythropoietin, and so that complicates the issue, . Dr. Singh: Mark, do you refer patients once they develop anemia or do you manage the anemia yourself in your own practice? Dr. Molitch: Well I think in our practice and probably in most endocrine practices, by the time we find the patient whose hemoglobin is getting less than 11 and we start thinking about erythropoietin [EPO], we have generally been referring that patient to the nephrologist.Slide 10. TREAT Study Design this is a randomized prospective study looking at the effects of erythropoietin supplementation, trying to get the hemoglobin levels up. Slide 12. Diabetologists and Nephrologists Working Together Dr. Singh: In my own nephrology practice, I tend not to spend a lot of time thinking about different types of insulin, so I would imagine that Willa, you also don't think about all the newer erythropoietins that are coming out since you have such a strong nephrology division at UCLA. Dr. Hsueh: Well, like Mark, with erythropoietin, we're actually when we feel patients need that, we actually call our nephrology colleagues and, as you said, they have a very strong background. What I'm amazed at is that our nephrology colleagues, once the GFR is somewhere around 30 or less, they take over full management, so they actually have to know about insulins and know about other issues. %%Slide 15. Managing Patients With Diabetes and CKD Dr. Singh: So what are your top 2 or 3 things that nowadays in 2007 you think about in managing patients with diabetes who have chronic kidney disease? Do you, as Mark is alluding to, manage their lipids more aggressively, their hypoparathyroidism, or do you feel that these areas still represent controversial issues? Dr. Hsueh: Well, as I said, we would see these patients more in stage 2, stage 3, and maybe the beginning of stage 4, and I manage their cardiovascular risk, hypertension especially, very aggressively because I know that whatever changes in blood pressure happen have great impact on the kidney. The lipids I'm concerned with, but I'm aware of the studies you said, and then the question is the role of vitamin D because there's very intriguing information that not only is it good for the calcium-phosphorus changes but also it may have anti-inflammatory effects; and there are a number of studies at UCLA, then of course the whole issue of anemia, and in patients with heart disease, of course you want to provide oxygen but you don't want to provide so many red cells that you get thrombosis formation. Dr. Singh: So, Mark, do you think that diabetologists and nephrologists can work together in managing these important conditions or is there hope for us to work together? Dr. Molitch: Well absolutely I think it's almost a natural combination, but I think one of the things we have to do is keep working together, and so it's not a hand off, it's a continued comanagement of the patients even once they get on dialysis. I think the diabetologists can lend a hand in trying to help manage their diabetes even at that point. ..Dr. Singh: So management of anemia and diabetes and kidney disease are interrelated and now one can manage them in a diabetes center in a collaborative fashion or one can refer these patients but it seems like one of the key issues is to certainly manage them, to recognize it early and manage them. Slide 16. Management of Dialysis Patients With Diabetes One quick question I have before we summarize is what about the dialysis patient - do you tend to have them come back to your diabetes center or diabetes practice and continue to follow them or is it your observation that most of these patients get managed wholly by the nephrologist when they reach end-stage renal disease? Dr. Hsueh: Well I'm happy because there are more oral agents now on board that we can use in dialysis patients, for example, in addition to insulin, . We now have sitagliptin or Januvia,.. you have to adjust the dose, but it's a DPP-4 inhibitor that works on the incretin pathway. We have the TZDs [thiazolidinediones] which can be used all the way through to end-stage kidney disease. And, of course, we have acarbose, which mainly works on the gut and just slows, doesn't inhibit, just slows carbohydrate absorption. So you actually have 3 oral agents that you can mix and match in patients with chronic kidney disease and then you have insulin, so I think we've broadened the horizons for patients with CKD. %% Slide 17. Summary and Closing Comments Dr. Singh: So it sounds like nephrologists need to learn more about how to manage diabetes with different types of insulins and oral agents and diabetologists need to learn to manage perhaps a little bit more about the comorbidities of kidney disease such as hypoparathyroidism and lipid abnormalities but also anemia. And whether you refer these patients or you manage them in the diabetes center, the key is to try to manage them together. Dr. Hsueh: Well, we're waiting for you to do the studies to tell us what level of hemoglobin should we intervene, when should we intervene with vitamin D; of course, both of those studies are ongoing. Dr. Singh: Right. Well, that was, I think, a very productive discussion, and I'd like to thank Dr. Hsueh and Dr. Molitch for participating. I think we achieved our objectives of discussing the interrelatedness of anemia, diabetes, and chronic kidney disease. I also believe that we really brought out the notion that diabetologists and nephrologists need to work together in both early recognition and then subsequent management of these patients. Supported by an independent educational grant from Roche 2.%% Notice: The LightHouse for the Blind and Visually Impaired will be hosting several informational survey interviews on talking glucose meters and adaptive insulin syringe devices. These interview sessions will be conducted in conjunction with a doctorial student from UC Berkeley. The focus of the interviews is to collect data concerning talking glucose meters and adaptive insulin syringe devices. The interview will take between 60 to 90 minutes in San Francisco and there will be a $40 honorarium for those who participate. The participants must be diabetic and have used or currently use a talking glucose meter. If you know of individuals who may qualify please contact Beth Berenson at The LightHouse, Phone: or via email at: 3.%% Medscape - Metabolic Syndrome Linked to Chronic Kidney Disease (Reuters Health) Jul 24 - A study of a Chinese population aged 40 years and older found an association between metabolic syndrome and chronic kidney disease. (CKD) Metabolic syndrome " is a common disorder in developed countries, " note the researchers. " With its dramatic economic development and the consequent changes in lifestyle and diet, China too has seen the metabolic syndrome become an important health care problem. " [2310 people; cross-sectional study; mean age 60.7 years,] The overall prevalence of metabolic syndrome was 34.1%, and the overall prevalence of CKD was 10.7%. The prevalence of CKD was higher among subjects with metabolic syndrome than those without metabolic syndrome (15.4% versus 8.3%, respectively. " Further studies are needed to determine if treatment of metabolic syndrome could substantially ease the burden of CKD in China, " the team concludes. Mayo Clin Proc 2007;82 4.%% In Diabetes Today 23-JUL-2007 - Hepatitis C Strongly Linked to Type 2 Diabetes (Reuters Health) - People infected with hepatitis C virus have an increased risk of developing type 2, or " adult-onset " diabetes, a population-based study confirms. This risk is particularly high in younger people who are overweight, researchers have found. Therefore, screening for and preventing diabetes in persons with HCV infection could be started earlier than the suggested age of 45 or older, which is the recommendation for the general population, especially for patients with are heavier or who have other diabetes risk factors for diabetes, the team writes. [4,958 people age 40 or older without diabetes, 3,486 tested negative and 812 positive for HCV; 116 subjects were infected with both HCV and HCV; 544 tested positive for hepatitis B; 7 year follow up] After adjusting the data to account for established diabetes risk factors, the incidence of DM was 70 percent higher in persons with HCV infection than in those without it. " This finding is consistent with past studies showing that HCV infection is highly associated with diabetes. " the younger group with HCV infection was at greater risk for the disease, they note. HCV infection plus being overweight or obese magnified the risk of diabetes by about three times compared with uninfected persons of normal weight. American Journal of Epidemiology, July 15, 2007. 5.%% TimesSelect F.D.A. Review Criticizes Diabetes Drug and Maker July 26, 2007 Patients who take Avandia, a popular but controversial diabetes medicine made by GlaxoKline, [GSK] are far more likely to suffer and die from heart problems than those who take Actos, a similar pill made by Takeda, according to federal drug reviewers. Avandia is particularly dangerous to patients who also take insulin. By contrast, Actos can be taken safely with insulin, according to the review. The findings likely spell the end of Avandia's status as one of the nation's most popular drugs for treating diabetics who are not dependent on insulin. Last year, more than a million patients in the US took Avandia, and a similar number took Actos. Avandia's 2006 global sales were nearly $3.4 billion. The report and charges that GSK sought to intimidate a doctor who publicly warned about Avandia's risks in 1999 could lead to a cascade of lawsuits against the company. Indeed, F.D.A. reviewers were sharply critical of the quality of the studies GSK has undertaken to test the safety of Avandia, dismissing the present and future results of an ongoing 4,000-patient trial as unreliable and invalid. The report by medical and safety reviewers within the FDA also provides ammunition to critics on Capitol Hill and elsewhere who claim that top F.D.A. officials have been far too slow to acknowledge Avandia's risks. GlaxoKline suggested a year ago that the agency add a note to the drug's label about Avandia's growing heart risks, the report states. These conclusions come in a 436-page compendium of reviews released in advance of an advisory committee hearing to be held on Monday to discuss Avandia's effects on the heart. The F.D.A. intends to ask the committee of independent experts whether Avandia should continue to be sold. It is far from clear, F.D.A. safety reviewers concluded in the report, whether taking Avandia, also known as rosiglitazone, is worth the risk. " A critical question to be resolved in determining appropriate regulatory action is whether the anticipated therapeutic benefit of rosiglitazone outweighs the demonstrated cardiovascular risk, " one F.D.A. reviewer concluded. 6.%% Medscape - Corneal Sensitivity Is Linked to Diabetic Neuropathy (Reuters Health) Jul 26 - Results of a new study suggest that corneal sensitivity is reduced in diabetic patients, and is related to the severity of neuropathy. " In diabetic patients, corneal sensitivity is reduced, due to a loss of corneal nerve fibers, which leads to corneal keratopathy and a susceptibility to injury, with recurrent erosions and ulcers, " researchers write . Corneal sensation, they add, can be evaluated using the Cochet-Bonnet aesthesiometer (C-BA) or the noncontact corneal aesthesiometer (NCCA). They examined corneal sensitivity in 147 diabetic patients and 18 controls using these approaches and also assessed neuropathy deficit score. Neuropathy was classified as being absent, mild, moderate or severe. No significant differences in age, type of diabetes, and A1C were observed among the groups. The duration of diabetes increased with neuropathic severity. Corneal sensitivity was significantly reduced in patients with diabetes compared with controls. It was not reduced in diabetic patients without neuropathy. However, a significant reduction was observed in those with any degree of neuropathy. A significant correlation was observed between neuropathy established by C-BA and NCCA. The findings, the investigators conclude " have important clinical implications regarding the development of corneal abnormalities in diabetic patients and also raise the possibility that corneal sensation could be used to screen for diabetic neuropathy. " Diabetes Care 2007;30 7.%% Medical News Today - Improving Heart Health In Kids With Diabetes Type 1: The More They Exercise, The Lower The Risk Of Early Death 28 Jul 2007 It's never too early to focus on how to maintain good cardiovascular health, especially for people with type 1. A study published in the August issue of Diabetes Care underscores the need for regular physical activity among youth, finding that the more active the child, the better the child's cardiovascular risk profile. Heart disease is the number one killer of people with diabetes. Among type 1 patients as young as 20-39 years, the risk of dying from cardio- and cerebrovascular events is five times higher than it is for people who don't have diabetes. Previous studies have shown that the development of atherosclerotic lesions begins in childhood and that 69 percent of pediatric patients with type 1 diabetes exhibit one or more cardiovascular risk factors. A new study by researchers in Germany and Austria, which looked at the physical activity levels and cardiovascular health of more than 23,000 young people between the ages of 3 and 18, found that those who were most physically active were the least likely to be at risk for heart disease. As physical activity levels rose, risk factors such as high lipid profiles, diastolic blood pressure, and blood glucose levels fell. Regular physical activity was defined as exercising for at least 30 minutes at a time, not including school sports. The study found that those who were active at least once or twice per week were also less likely to have high blood pressure than those who didn't exercise at all. And, it showed that the frequency of regular physical activity " was one of the most important influencing factors for HbA1c. " The A1c test measures average blood glucose levels over a period of 2-3 months and helps a person with diabetes determine how well they are keeping blood glucose levels under control overall. 8.%% Medscape Medical News - The Choice of a Metabolic Syndrome Generation: Soft Drink Consumption Associated With Increased Metabolic Risk [for another version of this see DRList 7-24-07] July 25, 2007 - Drinking more than one soft drink daily is associated with a higher risk of developing adverse metabolic traits, as well as developing the metabolic syndrome, a new study has shown. Interestingly, it doesn't matter if the soda consumed is the diet variety, those with zero calories, as investigators showed these also increased the burden of metabolic risk in middle-aged adults. " That was one of the more striking aspects of this study, " lead investigator Dr R. Vasan (Boston University School of Medicine, MA) told heartwire. . " It actually doesn't matter if the soft drink is regular or diet. There was an association of increased risk of developing the metabolic syndrome with both types of drinks. " Vasan said that the consumption of soft drinks has doubled to tripled between 1977 and 2001. During this same time period, soft-drink sizes have also increased to staggering proportions. With evidence that soft-drink consumption is linked with weight gain and obesity as well as an increased risk of diabetes, the investigators questioned whether soft-drink consumption in adults, in amounts that are seemingly innocuous, like one per day, posed any metabolic hazard. The team related the incidence of metabolic syndrome and its components to soft-drink consumption in more than 6000 individuals participating in the Framingham Heart Study. In a cross-sectional analysis of the data, investigators report that those consuming more than one soft drink daily had a 48% higher prevalence of metabolic syndrome than those who drank less than one soft drink per day. In a longitudinal analysis of more than 6000 subjects free from metabolic syndrome at baseline, drinking more than one soft drink daily was associated with a 44% greater risk of developing metabolic syndrome and with developing 4 out of 5 components of metabolic syndrome. In a smaller sample of participants who had data available regarding the type of soft drink consumed, researchers observed that that those who consumed one or more drinks of diet or regular soda per day had a 50% to 60% increased risk of developing new-onset metabolic syndrome. Despite the fact that diet soda has zero calories, the findings are not entirely surprising, said Vasan, as diet soft drinks have been previously linked with poor health outcomes in children, such as weight gain and high blood pressure. In terms of theories explaining the association between soft-drink consumption and the metabolic syndrome risk, Vasan said there are no definitive answers yet. .it might be a lifestyle/dietary background thing driving this. " In addition, Vasan said diet soda might also induce a conditioning response in which the soft drinks promote a dietary preference for sweeter foods. Also, because diet soda is liquid, this has the effect of individuals eating more at the next meal, mainly because liquids are not as satiating. And finally, the brown caramel in soda has been linked with tissue damage and inflammation, which might contribute to the increased risk. All of these theories, however, are debated in literature. " Clearly, these findings are sufficiently intriguing that scientists now have to help us understand better why we see this association, " said Vasan. " We are not inferring causality from this analysis. It is just an association, so we need to turn to the scientists who are better positioned to help us understand the association more. " Circulation. Published online July 23, 2007. 9.%% -FDA Advisory Panels Acknowledge Signal of Risk With Rosiglitazone, but Stop Short of Recommending Its Withdrawal Wood Heartwire 2007. C 2007 Medscape July 31, 2007 - Rosiglitazone (Avandia, GlaxoKline [GSK]) is associated with a clear signal of cardiac ischemic risk in type 2 diabetics, the available data suggest, but this signal is not enough to justify yanking the drug from the market. This was the near-unanimous conclusion of the FDA's joint Endocrinologic and Metabolic Drugs/Drug Safety and Risk Management advisory committees at Monday's hearing. A long day of confusing, often conflicting data was capped by the seemingly inconsistent conclusions of the committee members who agreed 20:3 with the statement that available studies supported a signal of harm, but voted 22:1 to keep rosiglitazone on the market. Dr Pickering who was one of the three members who did not agree that there was a clear increased risk of ischemic events, pointed to the apparent contradiction: " I'm puzzled as to how people can vote yes for both questions, " he mused. But the vast majority of voting members on the panel seemed to agree with the sentiment raised repeatedly by presenters, panelists, and open public-hearing speakers, that it was important for physicians to have rosiglitazone in their arsenal of treatments for type 2. Indeed, some of the day's discussion revolved around an emerging hypothesis that the other thiazolidinedione (TZD) on the market, pioglitazone [Actos], might not carry the same safety concerns as rosiglitazone. Those data, however, comes predominantly from an as-yet unpublished analysis conducted by pioglitazone manufacturer Takeda, and has not yet been reviewed by the FDA, nor was it provided in full to panel members. A review of that data, was on track to be completed in time for the panel's review of the cardiovascular ischemic/thrombotic risks of TZDs, which had originally been scheduled for later in the year. The hearing, however, was bumped up after the publication of a controversial meta-analysis in the New England Journal of Medicine (NEJM) [1]--pointing to a significant 43% increase in myocardial infarction with rosiglitazone. During today's session, panel members heard from the sponsor and the FDA, both of whom had conducted their own meta-analyses of the randomized controlled trial data and turned up findings that were surprisingly consistent with the NEJM analysis--a 40% increased risk of serious ischemic events by the FDA's reckoning and a 31% increase in myocardial ischemic events in GSK's meta-analysis. All of the yes-votes reiterated the same concerns: that the evidence linking rosiglitazone with increased risk of cardiovascular death or MI was weak or inconsistent, particularly in trials that had active control arms rather than placebo comparators; that ischemic risk appeared higher in older patients, patients with heart failure, patients with preexisting coronary disease, and patients taking insulin--and that this should be reflected in the labeling. In fact, several panelists pointed out that current labeling lists rosiglitazone as being indicated for diabetics taking insulin; they felt this should be removed and a black box should be added warning against its use in this group. Others emphasized that the inconclusiveness of the existing studies and the fact that trials are still ongoing should also be mentioned in the packaging. But time and again, the experts on the panel bemoaned the fact that, not for the first time, the FDA had not had the foresight to mandate appropriate trials, leaving the committees to try to draw conclusions from meta-analyses and observational studies. Even the ongoing RECORD, ACCORD, and BARI-2D trials, by the FDA's own review, are underpowered or not designed to answer key questions about whether ischemic events will be higher than with other diabetes drugs, and if they are, which patient subsets will be affected. The mere fact that most of the studies included in the meta-analyses were only six months in duration underscores the paucity of solid information. The sole no-vote on the key question of whether rosiglitazone should remain on the market came from Dr Arthur Levin (Center for Medical Consumers, New York, NY). " It seems to me that given the evidence of a strong safety signal, given the fact that around this table and at the FDA there are doubts about the ability of ongoing clinical trials to definitively answer the question about the CV safety of the drug, and given the enormity of the potential public health risk of allowing this drug to continue to be marketed and used by millions of people for the rest of their lives, I logically can't find any way to justify leaving this drug on the market. " Levin's opinions have the support of at least two FDA insiders, Dr Gerald Dal Pan and Dr Graham , both in the FDA's Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research. Graham presented a risk/benefit assessment of rosiglitazone, pointing out that although his views were his own, his findings had been reviewed and were supported by others in his department, such that he was not just speaking as " Graham the FDA Whistle-Blower. " Graham showed projections to back up his claim that ongoing studies " will not change our state of knowledge... Graham's concerns about the quality of the existing rosiglitazone data, and the flawed studies in progress, struck a chord with panel members, who called for stricter standards for pre-approval and post-marketing studies. " I would have to say, the FDA has to take some responsibility for the dilemma in which we find ourselves, for approving less than optimally designed trials in the past, " Dr Arthur Moss observed. " I do think there is a problem that needs to be rectified in the future. " Vindication for Nissen Commenting on the day's deliberations to heartwire, Dr Nissen (Cleveland Clinic, OH), seemed satisfied that the FDA and sponsors' meta-analyses had confirmed his own findings. . " One concern I have is that black-box warnings do not always result in huge changes in prescribing practices, so time will tell, " he told heartwire 1. Nissen SE and Wolski K. Effect of rosiglitazone on the risk of myocardial infarction and death from cardiovascular causes. N Engl J Med 2007; 356:2457-2471. 10.%% Simultaneous Pancreas Kidney Transplantation From Old Donors Medscape Transplantation. 2007; C2007 Medscape 07/24/2007 Patient and Graft Survival Implications of Simultaneous Pancreas Kidney Transplantation From Old Donors Am J Transplant. 2007;7 Summary - The authors performed a retrospective analysis of the United Network for Organ Sharing database and identified adult patients with type 1 DM who were placed on the waiting list for simultaneous pancreas-kidney (SPK) transplantation. 8850 patients (54%) received an SPK transplant, of which 9% were from donors 45 years of age or older. Survival analyses were performed . .SPK transplantation from both young and old donors independently predicted lower mortality compared with staying on the waiting list. An additional expected wait of 1.5 years for a young donor equalized long-term survival expectations between young and old SPK donors. On the basis of these findings, the authors concluded that SPK transplantation offers a substantial survival benefit independent of donor age and should be considered for patients with decreased access to organs from young donors. Viewpoint - The critical shortage of donor organs challenges the transplant community to maximize and optimize the use of organs from all consenting deceased donors. .the profile of acceptable older donors for SPK transplantation may include female sex, low body mass index, and noncerebrovascular etiology of brain death. The patient population most likely to benefit from SPK transplantation from old donors includes either patients with limited access to timely transplantation (eg, blood type O or B, highly sensitized) or those who cannot afford to wait for an extended period of time (unstable diabetes, prolonged duration of dialysis, older age [> 50 years], known peripheral vascular or cardiovascular disease). 11.%% Medscape Medical News - Low GI Diets Better for Weight Loss, Lipid Profiles, Finds Cochrane Review July 24, 2007 - A new Cochrane review of six randomized controlled trials comparing low glycemic index (GI) or glycemic load (GL) diets with other diets has found that overweight or obese people lost more weight and had more improvement in lipid profiles with the low GI eating plans. Those on the low GI diets lost an average of 2.2 pounds (1 kg) more than those given comparison diets, which included higher GI or GL diets and conventional weight loss diets. They also had significantly better decreases in total and low-density lipoprotein (LDL) cholesterol, the researchers note. And in the two trials that evaluated only obese participants, weight loss was even more apparent - the low GI dieters lost about 9.2 pounds, compared with about 2.2 pounds shed by those on the other diets. However, the scientists caution that enduring data are still needed. " Longer trials with increased length of follow-up will determine whether the improvements reported can be maintained and incorporated into lifestyle long-term, " they say. Two experts not connected with the review expressed mixed opinions. One said this was a great review, while the other pointed out that the difference in weight loss between the low and high GI diets was rather small. The team included six trials in their review, including a total of 202 adults. The diets lasted from 5 weeks to 6 months, and none of the studies reported any adverseveffects associated with consuming a low GI diet.vAs well as losing more weight, those on the low GI diets also had significantly greatervloss of total fat mass and decrease in body mass index (BMI) than those on the comparison diets. " Considering the brevity of the interventions, the results are notable, " they add. Improvements in blood lipids were also significant. Cochrane Database Syst Rev. Published online July 18, 2007. Abbreviations: ADA - American Diabetes Association; DM - diabetes Mellitus; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities.Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thlvistacenter (DOT) <mailto:thl%40vistacenter.org> org Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2008 Report Share Posted January 11, 2008 interesting, patricia. So let me ask something: is hypoglycemia present in type 2 diabetics and if so, is there a certain way you know you have it? Vicki The LORD is good to those who depend on him, to those who search for him. Lamentations 3:25, NLT articles 1. ADA - Depression May Lead to Type 2 Diabetes Jan-2-2008 Researchers believe there is a link between chronic depression and the development of T2DM in adults age 65 years and up. Using responses from over 4,600 people without diabetes at the outset to the National Institutes of Health's Center for Epidemiological Studies Depression Scale, the researchers saw a 50% greater chance of developing DM during the course of the 10-year study among those noting high depressive symptoms--even after accounting for weight and activity levels. They state that depression has dramatic impacts on the autonomic nervous system, moving from a resting state to a responsive state under stress; insulin production is shut down to handle potential threats when the body is in the responsive state. Similar research by Washington University School of Medicine determined that when adults have both depression and T2, 90% of those experienced depression first. News summaries C2007 Information, Inc. Chicago Tribune (12/25/07) 2.%% MW - Habituation of Brain Responses Tied to Unawareness of Hypoglycemia (Reuters Health) Dec 31 - Attenuation of amygdala and frontal cortical responses to low blood glucose concentration may lead to a lack of hypoglycemia awareness in patients with T1DM. The lead researcher told Reuters Health that the studies are early However, she said, " We think they may have important implications for people with T1 who have lost their ability to recognize early hypoglycemia ... and are therefore at high risk for more severe hypoglycemia with confusion and even coma. " The team used FDG-labeled positron emission tomography to examine responses to euglycemia and hypoglycemia in 6 patients with hypoglycemia awareness and 7 without such awareness. FDG uptake was increased in the left amygdala in hypoglycemia awareness, but not in hypoglycemia unawareness. The team also found a " robust increase " bilaterally in the ventral striatum during hypoglycemia unawareness. Further analysis indicated bilateral attenuated activation of brain stem regions and less deactivation in lateral orbitofrontal cortex in hypoglycemia unawareness. " The data suggest, that this group of people, perhaps 25% of people who have had their DM for more than 15 years, have an altered brain response to a hypoglycemic episode in which they not only fail to feel that they are hypoglycemic, but they also fail to generate the brain message that the hypoglycemia is unpleasant and dangerous. " In fact, " the message generated may even be faintly rewarding, which would actually encourage experience of further hypoglycemia, " she added. " If this interpretation is correct, we will need to use additional strategies, such as those currently successful in changing other patterns of repeated behavior that are damaging -- for example, smoking and drinking alcohol -- to help people avoid hypoglycemia long-term, and recover their awareness of those occasional episodes that are inevitably part of today's insulin therapies. " Diabetes 2007;56. 3.%% MW-Sirolimus Stents May Reduce Restenosis in Diabetics With Coronary Disease (Reuters Health) Jan 04 - Compared with paclitaxel-eluting stents (PES), sirolimus-eluting stents (SES) appear to decrease the risk of in-stent late luminal loss in diabetics with coronary artery disease, new research shows. Comparing PES with SES has been difficult since there are so many individual variables that contribute to neointimal hyperplasia. In the present study, the researchers addressed this problem by comparing PES and SES directly in the same diabetic patient. [60 patients - 60 lesions were successfully treated with PES and 60 with SES] On multivariate analysis, the type of drug-eluting stent was the only independent predictor of in-stent late luminal loss. Specifically, in-stent late luminal loss [loss of the open area in vessel] was 2.3-times more likely when a PES rather than a SES was used. Further research is needed to determine if the better angiographic results achieved with SES actually translate into long-term clinical benefits, the authors conclude. Diabetes Care 2008;31. 4.%% MW - Retinopathy Linked to Subclinical Coronary Artery Disease Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 03 - Retinal microvascular changes are associated with increased coronary artery calcification (CAC), an indicator of subclinical coronary macrovascular disease, findings from the prospective Multi-Ethnic Study of Atherosclerosis (MESA) suggest. [6,000 subjects age 45 -84 years without a history of clinical cardiovascular disease. They underwent chest computed tomography to measure coronary artery calcification and fundus photography to assess retinal disease. Retinopathy was defined as the presence of microaneurysms, hemorrhages, cotton wool spots, intraretinal microvascular abnormalities, hard exudates, venous beading or new vessels. CAC was present in about half of the subjects. Retinopathy was present in 14.3% of subjects with no CAC, 17.2% of subjects with mild CAC, and 20.8% of those with moderate to severe CAC. " The association between retinopathy and moderate-to-severe CAC was present in all ethnic groups and remained significant in both men and women and in persons with and without diabetes or hypertension, " the investigators found. They conclude that " common pathophysiologic processes may underlie both microvascular and macrovascular disease. " Specifically, they suggest that " retinopathy signs ...reflect generalized endothelial dysfunction, which in the coronary circulation may promote atherogenesis. " " Inflammatory factors may also be involved " when patients without hypertension or diabetes, and with generally low cardiovascular risk profiles, present with retinopathy and coronary artery calcification, h. " As yet, there are no direct clinical implications from our study, " the ophthalmologist researcher said, " but physicians and patients should be aware that these conditions are related. . patients with retinopathy may be at higher risk of both subclinical heart disease and clinical heart disease, such as heart failure. " On the other hand, retinopathy is reversible..Reversal may occur in 3 years and is associated with lower BP and glucose levels, higher physical activity, and less obesity, " he said. " It is possible, but not proven, that reversal is associated with lower risk of cardiovascular disease. " the team is now evaluating the value of adding a retinal examination to a coronary calcium CT scan for predicting cardiovascular disease. Am J Epidemiol 2008;167: 5.%% MW - Alpha-Linolenic Acid May Lower Risk of Diabetic Peripheral Neuropathy Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 07 - Dietary intake of alpha-linolenic acid was associated with reduced incidence of diabetic peripheral neuropathy in a new analysis of data from the National Health and Nutrition Examination Survey (NHANES) 1999-2004. Alpha-linolenic acid is an omega-3 fatty acid found in many vegetable oils, including flaxseed, walnuts, and canola oil. The researchers identified 1062 diabetics age 40 and older for whom complete 24-hour dietary recall data were recorded. Peripheral neuropathy had been assessed using a nylon monofilament at three plantar sites on each foot to test for sensation. Dr. Eberhardt's group calculated the intake of total polyunsaturated fatty acids and of seven specific fatty acids. In multivariate analyses, they adjusted for age, sex, race, education, height, weight, diabetes duration, glycemic control, hypertension, smoking, and total calorie intake. Relative to adults in the lowest quintile [fifth] of alpha-linolenic acid intake the odds of having peripheral neuropathy was 0.54 for subjects in the fourth quintile (1.35 - 2.10 g/day) of intake and 0.40 for adults in the fifth quintile (2.11 g/day or higher). High dietary intake of alpha-linolenic acid is associated with reduced risk of vascular disease (coronary heart disease and hypertension), the team points out. " The protective effect of alpha-linolenic acid on macrovascular diseases and its association with diabetic peripheral neuropathy may be due to a similar biological mechanism. " They recommend further study to verify a protective effect of alpha-linolenic acid in patients with diabetes. Diabetes Care 2008;31. 6.%% MW-Fitness, Fatness, and Cardiovascular Risk Factors in Type 2 Diabetes: Look AHEAD Study Med Sci Sports Exerc. 2007;39(12) C2007 American College of Sports Medicine 01/03/2008 Purpose: Most studies comparing the effects of fitness and fatness on cardiovascular (CVD) risk have been done with young, healthy participants with low rates of obesity and high levels of fitness. The present study examined the association of cardiorespiratory fitness and obesity with CVD risk factors in an ethnically diverse sample of overweight/obese individuals with T2DM. [ Baseline data from Look AHEAD, 5145 overweight or obese individuals with T2]..Among the CVD risk factors, we examined continuous outcomes such as HbA1c, HDL, LDL, triglycerides, SBP, diastolic blood pressure (DBP), ABI, and 1-yr CVD risk estimate using the Framingham risk prediction equation. . At entry into the study, participants averaged 58.7 and had a DM duration of 6.8. 60% were women; 63.2% were white, 15.7% were African American, 13.2% Hispanic, 5.0% Native American, and 1.0% Asian American. In conclusion, this study shows that fitness and fatness are highly associated; thus, it is unusual to find individuals who are obese, yet very fit. Moreover, both fitness and fatness are related to CVD risk factors, although the strength of the associations for fitness versus fatness differed for specific risk factors. Of particular note is the strong association of fitness with HbA1c, ABI, and Framingham risk score in this population, and the relationships of BMI with SBP. Look AHEAD is an ongoing trial; it is expected to last through the year 2012. Half of the participants are receiving intensive lifestyle intervention, and half receive diabetes education and support. Changes in weight, fitness, and CVD risk factors are measured periodically throughout the study; the primary outcome measure is CVD morbidity and mortality. 7.%% MW - Imaging to Assess Effect of Medical Therapy in Patients With Diabetes Mellitus Br J Diabetes Vasc Dis. 2007;7(4): 01/02/2008 Abstract - The incidence of T2DM is rapidly increasing throughout the world. As an independent risk factor for cardiovascular disease both at the microvascular and macrovascular level, DM is a condition that deserves the most aggressive medical management... invasive techniques have been extensively used to assess coronary atherosclerosis progression and drug efficacy in the general population and smaller subsets of DM patients. While even minimal luminal stenosis reduction was associated with very significant reduction in event rates in the general population, similar data are lacking in DM patients. Although sensitive, an obvious limitation of these techniques is their invasive nature and the radiation exposure, besides a very considerable operational cost. Hence, additional non-invasive imaging techniques have been adopted to assess plaque progression or its haemodynamic effects in diabetic patients. Carotid Intima Media Thickness - Two decades ago investigators showed that the thickness of the carotid wall (intima and media layer taken together) measured ultrasonographically was associated with the presence and extent of atherosclerosis of the aorta..several randomised and epidemiological studies clearly proved the value of the cIMT as a marker of CV risk. An increased cIMT has been associated with risk of MI and CVA in the elderly (> 65 years) as well as younger age groups. cIMT is a marker of atherosclerosis burden rather than a surrogate for obstructive CAD. Insulin resistance alone in the absence of clinical diabetes has been associated with an increased cIMT.. Furthermore, cIMT appears to progress faster in diabetic patients than in all other patients. Medical Interventions -Measurement of cIMT progression has been utilised to assess efficacy of medical therapy in several studies in DM patients. A short- and a long-term follow-up study of 1,229 T1DM patients randomised to either standard or intensive glucose-reducing therapy, compared cIMT progression in diabetes with that of age and sex-matched non-diabetic individuals...cIMT progression was not different at the end of the first year of follow-up between controls and patients receiving intensive and standard therapy, but it was significantly greater in the diabetic than control subjects at the end of 6.5 years of follow-up. Coronary Artery Calcium - Coronary artery calcium is deposited in the atherosclerotic milieu as the plaque develops via active mechanisms resembling bone formation. . it has been shown that there is an excellent correlation(r=0.98) between CAC measured on CCT and atherosclerotic plaque area. Whether CAC imaging adds prognostic information in diabetes mellitus remains unclear. Hypertension and several nontraditional CV risk factors have been associated with CAC progression in DM subjects. .. Additionally, a greater proportion of DM than non-diabetic patients developed CAC during follow-up if no CAC was present at baseline (42% vs. 25%. Finally, as reported in the general population, CAC progression was linked with adverse coronary events during follow-up. .DM patients who suffered a MI during follow-up demonstrated a 4-fold and 2.5-fold greater CAC progression than non-diabetic subjects receiving and not receiving statins, respectively. CAC imaging appears to be a reliable means to assess risk connected with subclinical atherosclerosis in the general population, although some debate remains in diabetic patients. Functional Imaging - Various forms of nuclear myocardial perfusion imaging have been utilised in DM patients to assess the effect of glycaemic metabolism on vascular function. Indeed, data suggest that coronary vasomotor abnormalities accompany glucose metabolism impairment and that vascular function deteriorates with increasing severity of insulin-resistance and glucose intolerance. Summary - The existing evidence suggests that many modern imaging modalities may be utilised to monitor the effectiveness of medical therapy for diabetes on the CV system. Indeed, almost all surrogate markers of atherosclerosis have been studied in diabetic patients and have shown some validity for this purpose. However, many of the reported differences were very small, some were obtained with invasive techniques and many implied exposure to radiation. Finally, very little evidence has so far linked the occurrence of events to the progression of these markers of disease. Hence, future appropriately powered studies should focus on whether reducing plaque progression and restoring vascular vasomotor activity translate into a significant improvement of CV morbidity and mortality in diabetes mellitus. 8.%% Type 2 Diabetes -- Insulin Therapy Initiating Insulin in the Type 2 Diabetes Patient Medscape Diabetes & Endocrinology. 2007; C2007 Medscape 12/28/2007 Introduction - T2DM is a progressive disease, and most patients will eventually need insulin to achieve euglycemia.[normal blood sugar level] Furthermore, data have shown that early and aggressive intervention to lower blood glucose reduces the risk of complications of the disease. However, even with the ever-growing list of new medications available, it can be a daunting task for healthcare providers to decide which treatment regimen is appropriate to manage a particular patient. New guidelines and algorithms can help determine which patients with type 2 diabetes should be started on insulin and when insulin should be initiated. The goals of insulin therapy are the same as the goals of any therapy for the treatment of diabetes: to achieve optimal glycemic control without causing undue hypoglycemia or excessive weight gain and to minimize the impact on lifestyle. The Challenges of Insulin Therapy Psychological insulin resistance is a real phenomenon. Individuals with diabetes often feel that insulin is the beginning of the end. They fear taking the injection and feel that there is a stigma associated with insulin. Insulin therapy can, in fact, be a real pain both literally and figuratively. It is intrusive, can limit spontaneity, and can interfere with daily activities. As a consequence, adhering to an insulin regimen has been difficult for many patients. Because symptom severity is not indicative of disease severity, many individuals do not understand the need for optimal glycemic control or its role in preventing complications. This lack of understanding can also result in significant resistance as well as decreased adherence once patients do agree to begin insulin. That nonadherence will most likely carry over to other parts of diabetes management, such as blood glucose testing. In addition, individuals fear that they will experience hypoglycemia and gain weight. To top it off, there is the inconvenience and the disruption of daily routines and privacy. Providers, on the other hand, also experience psychological resistance to insulin therapy. They also may fear hypoglycemia and have concern for their patients' safety. In patients who already have a weight issue, the risk of gaining weight adds to the complexity of the decision to initiate insulin. All this, combined with the time it takes to educate the patient and titrate the dose, adds up to a lot of work. Teaming up with a diabetes educator who is knowledgeable in diabetes and insulin management can help alleviate this workload. However, even if this resource is not available, simple algorithms and titration schedules make initiation and titration of insulin easier. 9.%% MW -Blood Pressure and Risk of Developing Type 2 Diabetes Mellitus: The Women's Health Study Eur Heart J. 2007;28(23) C2007 Oxford University Press 01/02/2008 Abstract Aims: To examine the relationship of blood pressure (BP) and BP progression with the subsequent development of T2DM. [ prospective cohort study among 38 172 women free of DM and cardiovascular disease at baseline. Women were classified into four categories according to self-reported baseline BP] During 10.2 years of follow-up, 1672 women developed T2. Conclusion - Our study provides strong evidence that baseline BP and BP progression are associated with an increased risk of incident T2. Clinicians should be aware of these relationships to optimize the management of patients at increased risk for cardiovascular disease. 10.%% MW - New PPAR-Gamma Modulator Has Potent Antidiabetes and Antiatherogenic Effects Reuters Health Information 2007. (Reuters Health) Dec 28 - A new specific peroxisome proliferator-activated receptor (PPAR) modulator has demonstrated promise in a French in vitro and in vivo study of mice.The researchers note that the thiazolidinedione (TZD) class of drugs, although effective and widely used to treat T2 tends to cause weight gain. This study was undertaken to evaluate S26948, a novel ligand for PPAR-gamma. The study found that S26948 is a specific high-affinity agonist for PPAR-gamma, binding it with the same affinity as the TZD rosiglitazone does. Further, the results suggest that S26948 promoted a PPAR-gamma conformation distinct from that elicited by rosiglitazone. In addition, [it] decreased blood glucose levels and plasma insulin levels in male ob/ob mice, indicating that the drug increased insulin sensitivity, paralleling the effects of rosiglitazone treatment. Results showed that the agent did not promote body- weight gain in the diabetic mice. Instead, the S26948-treated mice gained less weight than the controls, indicating " a profoundly decreased food efficiency, " the authors write. They concluded that S26948's pattern of coactivator recruitment, which differs from that of rosiglitazone, decreases its adipogenic capacity compared with rosiglitazone. In a cohort of homozygous human apolipoprotein E2 knock-in mice, S26948 reduced atherosclerotic lesion surfaces by 46% compared with controls. Rosiglitazone had no effect on atherosclerotic lesion size. They add that this line of research is ongoing with related compounds that are considered even more promising, not specifically with S26948. Diabetes 2007;56 11.%% MW - Depomed Says FDA Approves 1000 Mg Strength Tablets of Glumetza (Reuters) Jan 02 - Depomed Inc said U.S. health regulators have approved the 1000 mg strength tablets of Glumetza, an extended-release formulation of metformin, for patients with T2. The specialty pharmaceutical company said it acquired exclusive US rights to the 1000 mg formulation of Glumetza in December 2005 Abbreviations: T1DM - type 1 diabetes mellitus T2DM - type 2; ADA - American Diabetes Association; BP - blood pressure; DM - diabetes Mellitus;HTN - hypertension; MW Medscape Web MD; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google. Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities. Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thl@... __________ NOD32 2779 (20080109) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2008 Report Share Posted January 11, 2008 interesting, patricia. So let me ask something: is hypoglycemia present in type 2 diabetics and if so, is there a certain way you know you have it? Vicki The LORD is good to those who depend on him, to those who search for him. Lamentations 3:25, NLT articles 1. ADA - Depression May Lead to Type 2 Diabetes Jan-2-2008 Researchers believe there is a link between chronic depression and the development of T2DM in adults age 65 years and up. Using responses from over 4,600 people without diabetes at the outset to the National Institutes of Health's Center for Epidemiological Studies Depression Scale, the researchers saw a 50% greater chance of developing DM during the course of the 10-year study among those noting high depressive symptoms--even after accounting for weight and activity levels. They state that depression has dramatic impacts on the autonomic nervous system, moving from a resting state to a responsive state under stress; insulin production is shut down to handle potential threats when the body is in the responsive state. Similar research by Washington University School of Medicine determined that when adults have both depression and T2, 90% of those experienced depression first. News summaries C2007 Information, Inc. Chicago Tribune (12/25/07) 2.%% MW - Habituation of Brain Responses Tied to Unawareness of Hypoglycemia (Reuters Health) Dec 31 - Attenuation of amygdala and frontal cortical responses to low blood glucose concentration may lead to a lack of hypoglycemia awareness in patients with T1DM. The lead researcher told Reuters Health that the studies are early However, she said, " We think they may have important implications for people with T1 who have lost their ability to recognize early hypoglycemia ... and are therefore at high risk for more severe hypoglycemia with confusion and even coma. " The team used FDG-labeled positron emission tomography to examine responses to euglycemia and hypoglycemia in 6 patients with hypoglycemia awareness and 7 without such awareness. FDG uptake was increased in the left amygdala in hypoglycemia awareness, but not in hypoglycemia unawareness. The team also found a " robust increase " bilaterally in the ventral striatum during hypoglycemia unawareness. Further analysis indicated bilateral attenuated activation of brain stem regions and less deactivation in lateral orbitofrontal cortex in hypoglycemia unawareness. " The data suggest, that this group of people, perhaps 25% of people who have had their DM for more than 15 years, have an altered brain response to a hypoglycemic episode in which they not only fail to feel that they are hypoglycemic, but they also fail to generate the brain message that the hypoglycemia is unpleasant and dangerous. " In fact, " the message generated may even be faintly rewarding, which would actually encourage experience of further hypoglycemia, " she added. " If this interpretation is correct, we will need to use additional strategies, such as those currently successful in changing other patterns of repeated behavior that are damaging -- for example, smoking and drinking alcohol -- to help people avoid hypoglycemia long-term, and recover their awareness of those occasional episodes that are inevitably part of today's insulin therapies. " Diabetes 2007;56. 3.%% MW-Sirolimus Stents May Reduce Restenosis in Diabetics With Coronary Disease (Reuters Health) Jan 04 - Compared with paclitaxel-eluting stents (PES), sirolimus-eluting stents (SES) appear to decrease the risk of in-stent late luminal loss in diabetics with coronary artery disease, new research shows. Comparing PES with SES has been difficult since there are so many individual variables that contribute to neointimal hyperplasia. In the present study, the researchers addressed this problem by comparing PES and SES directly in the same diabetic patient. [60 patients - 60 lesions were successfully treated with PES and 60 with SES] On multivariate analysis, the type of drug-eluting stent was the only independent predictor of in-stent late luminal loss. Specifically, in-stent late luminal loss [loss of the open area in vessel] was 2.3-times more likely when a PES rather than a SES was used. Further research is needed to determine if the better angiographic results achieved with SES actually translate into long-term clinical benefits, the authors conclude. Diabetes Care 2008;31. 4.%% MW - Retinopathy Linked to Subclinical Coronary Artery Disease Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 03 - Retinal microvascular changes are associated with increased coronary artery calcification (CAC), an indicator of subclinical coronary macrovascular disease, findings from the prospective Multi-Ethnic Study of Atherosclerosis (MESA) suggest. [6,000 subjects age 45 -84 years without a history of clinical cardiovascular disease. They underwent chest computed tomography to measure coronary artery calcification and fundus photography to assess retinal disease. Retinopathy was defined as the presence of microaneurysms, hemorrhages, cotton wool spots, intraretinal microvascular abnormalities, hard exudates, venous beading or new vessels. CAC was present in about half of the subjects. Retinopathy was present in 14.3% of subjects with no CAC, 17.2% of subjects with mild CAC, and 20.8% of those with moderate to severe CAC. " The association between retinopathy and moderate-to-severe CAC was present in all ethnic groups and remained significant in both men and women and in persons with and without diabetes or hypertension, " the investigators found. They conclude that " common pathophysiologic processes may underlie both microvascular and macrovascular disease. " Specifically, they suggest that " retinopathy signs ...reflect generalized endothelial dysfunction, which in the coronary circulation may promote atherogenesis. " " Inflammatory factors may also be involved " when patients without hypertension or diabetes, and with generally low cardiovascular risk profiles, present with retinopathy and coronary artery calcification, h. " As yet, there are no direct clinical implications from our study, " the ophthalmologist researcher said, " but physicians and patients should be aware that these conditions are related. . patients with retinopathy may be at higher risk of both subclinical heart disease and clinical heart disease, such as heart failure. " On the other hand, retinopathy is reversible..Reversal may occur in 3 years and is associated with lower BP and glucose levels, higher physical activity, and less obesity, " he said. " It is possible, but not proven, that reversal is associated with lower risk of cardiovascular disease. " the team is now evaluating the value of adding a retinal examination to a coronary calcium CT scan for predicting cardiovascular disease. Am J Epidemiol 2008;167: 5.%% MW - Alpha-Linolenic Acid May Lower Risk of Diabetic Peripheral Neuropathy Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 07 - Dietary intake of alpha-linolenic acid was associated with reduced incidence of diabetic peripheral neuropathy in a new analysis of data from the National Health and Nutrition Examination Survey (NHANES) 1999-2004. Alpha-linolenic acid is an omega-3 fatty acid found in many vegetable oils, including flaxseed, walnuts, and canola oil. The researchers identified 1062 diabetics age 40 and older for whom complete 24-hour dietary recall data were recorded. Peripheral neuropathy had been assessed using a nylon monofilament at three plantar sites on each foot to test for sensation. Dr. Eberhardt's group calculated the intake of total polyunsaturated fatty acids and of seven specific fatty acids. In multivariate analyses, they adjusted for age, sex, race, education, height, weight, diabetes duration, glycemic control, hypertension, smoking, and total calorie intake. Relative to adults in the lowest quintile [fifth] of alpha-linolenic acid intake the odds of having peripheral neuropathy was 0.54 for subjects in the fourth quintile (1.35 - 2.10 g/day) of intake and 0.40 for adults in the fifth quintile (2.11 g/day or higher). High dietary intake of alpha-linolenic acid is associated with reduced risk of vascular disease (coronary heart disease and hypertension), the team points out. " The protective effect of alpha-linolenic acid on macrovascular diseases and its association with diabetic peripheral neuropathy may be due to a similar biological mechanism. " They recommend further study to verify a protective effect of alpha-linolenic acid in patients with diabetes. Diabetes Care 2008;31. 6.%% MW-Fitness, Fatness, and Cardiovascular Risk Factors in Type 2 Diabetes: Look AHEAD Study Med Sci Sports Exerc. 2007;39(12) C2007 American College of Sports Medicine 01/03/2008 Purpose: Most studies comparing the effects of fitness and fatness on cardiovascular (CVD) risk have been done with young, healthy participants with low rates of obesity and high levels of fitness. The present study examined the association of cardiorespiratory fitness and obesity with CVD risk factors in an ethnically diverse sample of overweight/obese individuals with T2DM. [ Baseline data from Look AHEAD, 5145 overweight or obese individuals with T2]..Among the CVD risk factors, we examined continuous outcomes such as HbA1c, HDL, LDL, triglycerides, SBP, diastolic blood pressure (DBP), ABI, and 1-yr CVD risk estimate using the Framingham risk prediction equation. . At entry into the study, participants averaged 58.7 and had a DM duration of 6.8. 60% were women; 63.2% were white, 15.7% were African American, 13.2% Hispanic, 5.0% Native American, and 1.0% Asian American. In conclusion, this study shows that fitness and fatness are highly associated; thus, it is unusual to find individuals who are obese, yet very fit. Moreover, both fitness and fatness are related to CVD risk factors, although the strength of the associations for fitness versus fatness differed for specific risk factors. Of particular note is the strong association of fitness with HbA1c, ABI, and Framingham risk score in this population, and the relationships of BMI with SBP. Look AHEAD is an ongoing trial; it is expected to last through the year 2012. Half of the participants are receiving intensive lifestyle intervention, and half receive diabetes education and support. Changes in weight, fitness, and CVD risk factors are measured periodically throughout the study; the primary outcome measure is CVD morbidity and mortality. 7.%% MW - Imaging to Assess Effect of Medical Therapy in Patients With Diabetes Mellitus Br J Diabetes Vasc Dis. 2007;7(4): 01/02/2008 Abstract - The incidence of T2DM is rapidly increasing throughout the world. As an independent risk factor for cardiovascular disease both at the microvascular and macrovascular level, DM is a condition that deserves the most aggressive medical management... invasive techniques have been extensively used to assess coronary atherosclerosis progression and drug efficacy in the general population and smaller subsets of DM patients. While even minimal luminal stenosis reduction was associated with very significant reduction in event rates in the general population, similar data are lacking in DM patients. Although sensitive, an obvious limitation of these techniques is their invasive nature and the radiation exposure, besides a very considerable operational cost. Hence, additional non-invasive imaging techniques have been adopted to assess plaque progression or its haemodynamic effects in diabetic patients. Carotid Intima Media Thickness - Two decades ago investigators showed that the thickness of the carotid wall (intima and media layer taken together) measured ultrasonographically was associated with the presence and extent of atherosclerosis of the aorta..several randomised and epidemiological studies clearly proved the value of the cIMT as a marker of CV risk. An increased cIMT has been associated with risk of MI and CVA in the elderly (> 65 years) as well as younger age groups. cIMT is a marker of atherosclerosis burden rather than a surrogate for obstructive CAD. Insulin resistance alone in the absence of clinical diabetes has been associated with an increased cIMT.. Furthermore, cIMT appears to progress faster in diabetic patients than in all other patients. Medical Interventions -Measurement of cIMT progression has been utilised to assess efficacy of medical therapy in several studies in DM patients. A short- and a long-term follow-up study of 1,229 T1DM patients randomised to either standard or intensive glucose-reducing therapy, compared cIMT progression in diabetes with that of age and sex-matched non-diabetic individuals...cIMT progression was not different at the end of the first year of follow-up between controls and patients receiving intensive and standard therapy, but it was significantly greater in the diabetic than control subjects at the end of 6.5 years of follow-up. Coronary Artery Calcium - Coronary artery calcium is deposited in the atherosclerotic milieu as the plaque develops via active mechanisms resembling bone formation. . it has been shown that there is an excellent correlation(r=0.98) between CAC measured on CCT and atherosclerotic plaque area. Whether CAC imaging adds prognostic information in diabetes mellitus remains unclear. Hypertension and several nontraditional CV risk factors have been associated with CAC progression in DM subjects. .. Additionally, a greater proportion of DM than non-diabetic patients developed CAC during follow-up if no CAC was present at baseline (42% vs. 25%. Finally, as reported in the general population, CAC progression was linked with adverse coronary events during follow-up. .DM patients who suffered a MI during follow-up demonstrated a 4-fold and 2.5-fold greater CAC progression than non-diabetic subjects receiving and not receiving statins, respectively. CAC imaging appears to be a reliable means to assess risk connected with subclinical atherosclerosis in the general population, although some debate remains in diabetic patients. Functional Imaging - Various forms of nuclear myocardial perfusion imaging have been utilised in DM patients to assess the effect of glycaemic metabolism on vascular function. Indeed, data suggest that coronary vasomotor abnormalities accompany glucose metabolism impairment and that vascular function deteriorates with increasing severity of insulin-resistance and glucose intolerance. Summary - The existing evidence suggests that many modern imaging modalities may be utilised to monitor the effectiveness of medical therapy for diabetes on the CV system. Indeed, almost all surrogate markers of atherosclerosis have been studied in diabetic patients and have shown some validity for this purpose. However, many of the reported differences were very small, some were obtained with invasive techniques and many implied exposure to radiation. Finally, very little evidence has so far linked the occurrence of events to the progression of these markers of disease. Hence, future appropriately powered studies should focus on whether reducing plaque progression and restoring vascular vasomotor activity translate into a significant improvement of CV morbidity and mortality in diabetes mellitus. 8.%% Type 2 Diabetes -- Insulin Therapy Initiating Insulin in the Type 2 Diabetes Patient Medscape Diabetes & Endocrinology. 2007; C2007 Medscape 12/28/2007 Introduction - T2DM is a progressive disease, and most patients will eventually need insulin to achieve euglycemia.[normal blood sugar level] Furthermore, data have shown that early and aggressive intervention to lower blood glucose reduces the risk of complications of the disease. However, even with the ever-growing list of new medications available, it can be a daunting task for healthcare providers to decide which treatment regimen is appropriate to manage a particular patient. New guidelines and algorithms can help determine which patients with type 2 diabetes should be started on insulin and when insulin should be initiated. The goals of insulin therapy are the same as the goals of any therapy for the treatment of diabetes: to achieve optimal glycemic control without causing undue hypoglycemia or excessive weight gain and to minimize the impact on lifestyle. The Challenges of Insulin Therapy Psychological insulin resistance is a real phenomenon. Individuals with diabetes often feel that insulin is the beginning of the end. They fear taking the injection and feel that there is a stigma associated with insulin. Insulin therapy can, in fact, be a real pain both literally and figuratively. It is intrusive, can limit spontaneity, and can interfere with daily activities. As a consequence, adhering to an insulin regimen has been difficult for many patients. Because symptom severity is not indicative of disease severity, many individuals do not understand the need for optimal glycemic control or its role in preventing complications. This lack of understanding can also result in significant resistance as well as decreased adherence once patients do agree to begin insulin. That nonadherence will most likely carry over to other parts of diabetes management, such as blood glucose testing. In addition, individuals fear that they will experience hypoglycemia and gain weight. To top it off, there is the inconvenience and the disruption of daily routines and privacy. Providers, on the other hand, also experience psychological resistance to insulin therapy. They also may fear hypoglycemia and have concern for their patients' safety. In patients who already have a weight issue, the risk of gaining weight adds to the complexity of the decision to initiate insulin. All this, combined with the time it takes to educate the patient and titrate the dose, adds up to a lot of work. Teaming up with a diabetes educator who is knowledgeable in diabetes and insulin management can help alleviate this workload. However, even if this resource is not available, simple algorithms and titration schedules make initiation and titration of insulin easier. 9.%% MW -Blood Pressure and Risk of Developing Type 2 Diabetes Mellitus: The Women's Health Study Eur Heart J. 2007;28(23) C2007 Oxford University Press 01/02/2008 Abstract Aims: To examine the relationship of blood pressure (BP) and BP progression with the subsequent development of T2DM. [ prospective cohort study among 38 172 women free of DM and cardiovascular disease at baseline. Women were classified into four categories according to self-reported baseline BP] During 10.2 years of follow-up, 1672 women developed T2. Conclusion - Our study provides strong evidence that baseline BP and BP progression are associated with an increased risk of incident T2. Clinicians should be aware of these relationships to optimize the management of patients at increased risk for cardiovascular disease. 10.%% MW - New PPAR-Gamma Modulator Has Potent Antidiabetes and Antiatherogenic Effects Reuters Health Information 2007. (Reuters Health) Dec 28 - A new specific peroxisome proliferator-activated receptor (PPAR) modulator has demonstrated promise in a French in vitro and in vivo study of mice.The researchers note that the thiazolidinedione (TZD) class of drugs, although effective and widely used to treat T2 tends to cause weight gain. This study was undertaken to evaluate S26948, a novel ligand for PPAR-gamma. The study found that S26948 is a specific high-affinity agonist for PPAR-gamma, binding it with the same affinity as the TZD rosiglitazone does. Further, the results suggest that S26948 promoted a PPAR-gamma conformation distinct from that elicited by rosiglitazone. In addition, [it] decreased blood glucose levels and plasma insulin levels in male ob/ob mice, indicating that the drug increased insulin sensitivity, paralleling the effects of rosiglitazone treatment. Results showed that the agent did not promote body- weight gain in the diabetic mice. Instead, the S26948-treated mice gained less weight than the controls, indicating " a profoundly decreased food efficiency, " the authors write. They concluded that S26948's pattern of coactivator recruitment, which differs from that of rosiglitazone, decreases its adipogenic capacity compared with rosiglitazone. In a cohort of homozygous human apolipoprotein E2 knock-in mice, S26948 reduced atherosclerotic lesion surfaces by 46% compared with controls. Rosiglitazone had no effect on atherosclerotic lesion size. They add that this line of research is ongoing with related compounds that are considered even more promising, not specifically with S26948. Diabetes 2007;56 11.%% MW - Depomed Says FDA Approves 1000 Mg Strength Tablets of Glumetza (Reuters) Jan 02 - Depomed Inc said U.S. health regulators have approved the 1000 mg strength tablets of Glumetza, an extended-release formulation of metformin, for patients with T2. The specialty pharmaceutical company said it acquired exclusive US rights to the 1000 mg formulation of Glumetza in December 2005 Abbreviations: T1DM - type 1 diabetes mellitus T2DM - type 2; ADA - American Diabetes Association; BP - blood pressure; DM - diabetes Mellitus;HTN - hypertension; MW Medscape Web MD; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google. Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities. Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thl@... __________ NOD32 2779 (20080109) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2008 Report Share Posted January 11, 2008 Vicky, Type 2 diabetecs can become hypoglycemic if they are on meds that make their pancreas produce insulin. Perhaps some type 2 diabetics on the list can tell their experiences with this? Re: articles interesting, patricia. So let me ask something: is hypoglycemia present in type 2 diabetics and if so, is there a certain way you know you have it? Vicki The LORD is good to those who depend on him, to those who search for him. Lamentations 3:25, NLT articles 1. ADA - Depression May Lead to Type 2 Diabetes Jan-2-2008 Researchers believe there is a link between chronic depression and the development of T2DM in adults age 65 years and up. Using responses from over 4,600 people without diabetes at the outset to the National Institutes of Health's Center for Epidemiological Studies Depression Scale, the researchers saw a 50% greater chance of developing DM during the course of the 10-year study among those noting high depressive symptoms--even after accounting for weight and activity levels. They state that depression has dramatic impacts on the autonomic nervous system, moving from a resting state to a responsive state under stress; insulin production is shut down to handle potential threats when the body is in the responsive state. Similar research by Washington University School of Medicine determined that when adults have both depression and T2, 90% of those experienced depression first. News summaries C2007 Information, Inc. Chicago Tribune (12/25/07) 2.%% MW - Habituation of Brain Responses Tied to Unawareness of Hypoglycemia (Reuters Health) Dec 31 - Attenuation of amygdala and frontal cortical responses to low blood glucose concentration may lead to a lack of hypoglycemia awareness in patients with T1DM. The lead researcher told Reuters Health that the studies are early However, she said, " We think they may have important implications for people with T1 who have lost their ability to recognize early hypoglycemia ... and are therefore at high risk for more severe hypoglycemia with confusion and even coma. " The team used FDG-labeled positron emission tomography to examine responses to euglycemia and hypoglycemia in 6 patients with hypoglycemia awareness and 7 without such awareness. FDG uptake was increased in the left amygdala in hypoglycemia awareness, but not in hypoglycemia unawareness. The team also found a " robust increase " bilaterally in the ventral striatum during hypoglycemia unawareness. Further analysis indicated bilateral attenuated activation of brain stem regions and less deactivation in lateral orbitofrontal cortex in hypoglycemia unawareness. " The data suggest, that this group of people, perhaps 25% of people who have had their DM for more than 15 years, have an altered brain response to a hypoglycemic episode in which they not only fail to feel that they are hypoglycemic, but they also fail to generate the brain message that the hypoglycemia is unpleasant and dangerous. " In fact, " the message generated may even be faintly rewarding, which would actually encourage experience of further hypoglycemia, " she added. " If this interpretation is correct, we will need to use additional strategies, such as those currently successful in changing other patterns of repeated behavior that are damaging -- for example, smoking and drinking alcohol -- to help people avoid hypoglycemia long-term, and recover their awareness of those occasional episodes that are inevitably part of today's insulin therapies. " Diabetes 2007;56. 3.%% MW-Sirolimus Stents May Reduce Restenosis in Diabetics With Coronary Disease (Reuters Health) Jan 04 - Compared with paclitaxel-eluting stents (PES), sirolimus-eluting stents (SES) appear to decrease the risk of in-stent late luminal loss in diabetics with coronary artery disease, new research shows. Comparing PES with SES has been difficult since there are so many individual variables that contribute to neointimal hyperplasia. In the present study, the researchers addressed this problem by comparing PES and SES directly in the same diabetic patient. [60 patients - 60 lesions were successfully treated with PES and 60 with SES] On multivariate analysis, the type of drug-eluting stent was the only independent predictor of in-stent late luminal loss. Specifically, in-stent late luminal loss [loss of the open area in vessel] was 2.3-times more likely when a PES rather than a SES was used. Further research is needed to determine if the better angiographic results achieved with SES actually translate into long-term clinical benefits, the authors conclude. Diabetes Care 2008;31. 4.%% MW - Retinopathy Linked to Subclinical Coronary Artery Disease Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 03 - Retinal microvascular changes are associated with increased coronary artery calcification (CAC), an indicator of subclinical coronary macrovascular disease, findings from the prospective Multi-Ethnic Study of Atherosclerosis (MESA) suggest. [6,000 subjects age 45 -84 years without a history of clinical cardiovascular disease. They underwent chest computed tomography to measure coronary artery calcification and fundus photography to assess retinal disease. Retinopathy was defined as the presence of microaneurysms, hemorrhages, cotton wool spots, intraretinal microvascular abnormalities, hard exudates, venous beading or new vessels. CAC was present in about half of the subjects. Retinopathy was present in 14.3% of subjects with no CAC, 17.2% of subjects with mild CAC, and 20.8% of those with moderate to severe CAC. " The association between retinopathy and moderate-to-severe CAC was present in all ethnic groups and remained significant in both men and women and in persons with and without diabetes or hypertension, " the investigators found. They conclude that " common pathophysiologic processes may underlie both microvascular and macrovascular disease. " Specifically, they suggest that " retinopathy signs ...reflect generalized endothelial dysfunction, which in the coronary circulation may promote atherogenesis. " " Inflammatory factors may also be involved " when patients without hypertension or diabetes, and with generally low cardiovascular risk profiles, present with retinopathy and coronary artery calcification, h. " As yet, there are no direct clinical implications from our study, " the ophthalmologist researcher said, " but physicians and patients should be aware that these conditions are related. . patients with retinopathy may be at higher risk of both subclinical heart disease and clinical heart disease, such as heart failure. " On the other hand, retinopathy is reversible..Reversal may occur in 3 years and is associated with lower BP and glucose levels, higher physical activity, and less obesity, " he said. " It is possible, but not proven, that reversal is associated with lower risk of cardiovascular disease. " the team is now evaluating the value of adding a retinal examination to a coronary calcium CT scan for predicting cardiovascular disease. Am J Epidemiol 2008;167: 5.%% MW - Alpha-Linolenic Acid May Lower Risk of Diabetic Peripheral Neuropathy Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 07 - Dietary intake of alpha-linolenic acid was associated with reduced incidence of diabetic peripheral neuropathy in a new analysis of data from the National Health and Nutrition Examination Survey (NHANES) 1999-2004. Alpha-linolenic acid is an omega-3 fatty acid found in many vegetable oils, including flaxseed, walnuts, and canola oil. The researchers identified 1062 diabetics age 40 and older for whom complete 24-hour dietary recall data were recorded. Peripheral neuropathy had been assessed using a nylon monofilament at three plantar sites on each foot to test for sensation. Dr. Eberhardt's group calculated the intake of total polyunsaturated fatty acids and of seven specific fatty acids. In multivariate analyses, they adjusted for age, sex, race, education, height, weight, diabetes duration, glycemic control, hypertension, smoking, and total calorie intake. Relative to adults in the lowest quintile [fifth] of alpha-linolenic acid intake the odds of having peripheral neuropathy was 0.54 for subjects in the fourth quintile (1.35 - 2.10 g/day) of intake and 0.40 for adults in the fifth quintile (2.11 g/day or higher). High dietary intake of alpha-linolenic acid is associated with reduced risk of vascular disease (coronary heart disease and hypertension), the team points out. " The protective effect of alpha-linolenic acid on macrovascular diseases and its association with diabetic peripheral neuropathy may be due to a similar biological mechanism. " They recommend further study to verify a protective effect of alpha-linolenic acid in patients with diabetes. Diabetes Care 2008;31. 6.%% MW-Fitness, Fatness, and Cardiovascular Risk Factors in Type 2 Diabetes: Look AHEAD Study Med Sci Sports Exerc. 2007;39(12) C2007 American College of Sports Medicine 01/03/2008 Purpose: Most studies comparing the effects of fitness and fatness on cardiovascular (CVD) risk have been done with young, healthy participants with low rates of obesity and high levels of fitness. The present study examined the association of cardiorespiratory fitness and obesity with CVD risk factors in an ethnically diverse sample of overweight/obese individuals with T2DM. [ Baseline data from Look AHEAD, 5145 overweight or obese individuals with T2]..Among the CVD risk factors, we examined continuous outcomes such as HbA1c, HDL, LDL, triglycerides, SBP, diastolic blood pressure (DBP), ABI, and 1-yr CVD risk estimate using the Framingham risk prediction equation. . At entry into the study, participants averaged 58.7 and had a DM duration of 6.8. 60% were women; 63.2% were white, 15.7% were African American, 13.2% Hispanic, 5.0% Native American, and 1.0% Asian American. In conclusion, this study shows that fitness and fatness are highly associated; thus, it is unusual to find individuals who are obese, yet very fit. Moreover, both fitness and fatness are related to CVD risk factors, although the strength of the associations for fitness versus fatness differed for specific risk factors. Of particular note is the strong association of fitness with HbA1c, ABI, and Framingham risk score in this population, and the relationships of BMI with SBP. Look AHEAD is an ongoing trial; it is expected to last through the year 2012. Half of the participants are receiving intensive lifestyle intervention, and half receive diabetes education and support. Changes in weight, fitness, and CVD risk factors are measured periodically throughout the study; the primary outcome measure is CVD morbidity and mortality. 7.%% MW - Imaging to Assess Effect of Medical Therapy in Patients With Diabetes Mellitus Br J Diabetes Vasc Dis. 2007;7(4): 01/02/2008 Abstract - The incidence of T2DM is rapidly increasing throughout the world. As an independent risk factor for cardiovascular disease both at the microvascular and macrovascular level, DM is a condition that deserves the most aggressive medical management... invasive techniques have been extensively used to assess coronary atherosclerosis progression and drug efficacy in the general population and smaller subsets of DM patients. While even minimal luminal stenosis reduction was associated with very significant reduction in event rates in the general population, similar data are lacking in DM patients. Although sensitive, an obvious limitation of these techniques is their invasive nature and the radiation exposure, besides a very considerable operational cost. Hence, additional non-invasive imaging techniques have been adopted to assess plaque progression or its haemodynamic effects in diabetic patients. Carotid Intima Media Thickness - Two decades ago investigators showed that the thickness of the carotid wall (intima and media layer taken together) measured ultrasonographically was associated with the presence and extent of atherosclerosis of the aorta..several randomised and epidemiological studies clearly proved the value of the cIMT as a marker of CV risk. An increased cIMT has been associated with risk of MI and CVA in the elderly (> 65 years) as well as younger age groups. cIMT is a marker of atherosclerosis burden rather than a surrogate for obstructive CAD. Insulin resistance alone in the absence of clinical diabetes has been associated with an increased cIMT.. Furthermore, cIMT appears to progress faster in diabetic patients than in all other patients. Medical Interventions -Measurement of cIMT progression has been utilised to assess efficacy of medical therapy in several studies in DM patients. A short- and a long-term follow-up study of 1,229 T1DM patients randomised to either standard or intensive glucose-reducing therapy, compared cIMT progression in diabetes with that of age and sex-matched non-diabetic individuals...cIMT progression was not different at the end of the first year of follow-up between controls and patients receiving intensive and standard therapy, but it was significantly greater in the diabetic than control subjects at the end of 6.5 years of follow-up. Coronary Artery Calcium - Coronary artery calcium is deposited in the atherosclerotic milieu as the plaque develops via active mechanisms resembling bone formation. . it has been shown that there is an excellent correlation(r=0.98) between CAC measured on CCT and atherosclerotic plaque area. Whether CAC imaging adds prognostic information in diabetes mellitus remains unclear. Hypertension and several nontraditional CV risk factors have been associated with CAC progression in DM subjects. .. Additionally, a greater proportion of DM than non-diabetic patients developed CAC during follow-up if no CAC was present at baseline (42% vs. 25%. Finally, as reported in the general population, CAC progression was linked with adverse coronary events during follow-up. .DM patients who suffered a MI during follow-up demonstrated a 4-fold and 2.5-fold greater CAC progression than non-diabetic subjects receiving and not receiving statins, respectively. CAC imaging appears to be a reliable means to assess risk connected with subclinical atherosclerosis in the general population, although some debate remains in diabetic patients. Functional Imaging - Various forms of nuclear myocardial perfusion imaging have been utilised in DM patients to assess the effect of glycaemic metabolism on vascular function. Indeed, data suggest that coronary vasomotor abnormalities accompany glucose metabolism impairment and that vascular function deteriorates with increasing severity of insulin-resistance and glucose intolerance. Summary - The existing evidence suggests that many modern imaging modalities may be utilised to monitor the effectiveness of medical therapy for diabetes on the CV system. Indeed, almost all surrogate markers of atherosclerosis have been studied in diabetic patients and have shown some validity for this purpose. However, many of the reported differences were very small, some were obtained with invasive techniques and many implied exposure to radiation. Finally, very little evidence has so far linked the occurrence of events to the progression of these markers of disease. Hence, future appropriately powered studies should focus on whether reducing plaque progression and restoring vascular vasomotor activity translate into a significant improvement of CV morbidity and mortality in diabetes mellitus. 8.%% Type 2 Diabetes -- Insulin Therapy Initiating Insulin in the Type 2 Diabetes Patient Medscape Diabetes & Endocrinology. 2007; C2007 Medscape 12/28/2007 Introduction - T2DM is a progressive disease, and most patients will eventually need insulin to achieve euglycemia.[normal blood sugar level] Furthermore, data have shown that early and aggressive intervention to lower blood glucose reduces the risk of complications of the disease. However, even with the ever-growing list of new medications available, it can be a daunting task for healthcare providers to decide which treatment regimen is appropriate to manage a particular patient. New guidelines and algorithms can help determine which patients with type 2 diabetes should be started on insulin and when insulin should be initiated. The goals of insulin therapy are the same as the goals of any therapy for the treatment of diabetes: to achieve optimal glycemic control without causing undue hypoglycemia or excessive weight gain and to minimize the impact on lifestyle. The Challenges of Insulin Therapy Psychological insulin resistance is a real phenomenon. Individuals with diabetes often feel that insulin is the beginning of the end. They fear taking the injection and feel that there is a stigma associated with insulin. Insulin therapy can, in fact, be a real pain both literally and figuratively. It is intrusive, can limit spontaneity, and can interfere with daily activities. As a consequence, adhering to an insulin regimen has been difficult for many patients. Because symptom severity is not indicative of disease severity, many individuals do not understand the need for optimal glycemic control or its role in preventing complications. This lack of understanding can also result in significant resistance as well as decreased adherence once patients do agree to begin insulin. That nonadherence will most likely carry over to other parts of diabetes management, such as blood glucose testing. In addition, individuals fear that they will experience hypoglycemia and gain weight. To top it off, there is the inconvenience and the disruption of daily routines and privacy. Providers, on the other hand, also experience psychological resistance to insulin therapy. They also may fear hypoglycemia and have concern for their patients' safety. In patients who already have a weight issue, the risk of gaining weight adds to the complexity of the decision to initiate insulin. All this, combined with the time it takes to educate the patient and titrate the dose, adds up to a lot of work. Teaming up with a diabetes educator who is knowledgeable in diabetes and insulin management can help alleviate this workload. However, even if this resource is not available, simple algorithms and titration schedules make initiation and titration of insulin easier. 9.%% MW -Blood Pressure and Risk of Developing Type 2 Diabetes Mellitus: The Women's Health Study Eur Heart J. 2007;28(23) C2007 Oxford University Press 01/02/2008 Abstract Aims: To examine the relationship of blood pressure (BP) and BP progression with the subsequent development of T2DM. [ prospective cohort study among 38 172 women free of DM and cardiovascular disease at baseline. Women were classified into four categories according to self-reported baseline BP] During 10.2 years of follow-up, 1672 women developed T2. Conclusion - Our study provides strong evidence that baseline BP and BP progression are associated with an increased risk of incident T2. Clinicians should be aware of these relationships to optimize the management of patients at increased risk for cardiovascular disease. 10.%% MW - New PPAR-Gamma Modulator Has Potent Antidiabetes and Antiatherogenic Effects Reuters Health Information 2007. (Reuters Health) Dec 28 - A new specific peroxisome proliferator-activated receptor (PPAR) modulator has demonstrated promise in a French in vitro and in vivo study of mice.The researchers note that the thiazolidinedione (TZD) class of drugs, although effective and widely used to treat T2 tends to cause weight gain. This study was undertaken to evaluate S26948, a novel ligand for PPAR-gamma. The study found that S26948 is a specific high-affinity agonist for PPAR-gamma, binding it with the same affinity as the TZD rosiglitazone does. Further, the results suggest that S26948 promoted a PPAR-gamma conformation distinct from that elicited by rosiglitazone. In addition, [it] decreased blood glucose levels and plasma insulin levels in male ob/ob mice, indicating that the drug increased insulin sensitivity, paralleling the effects of rosiglitazone treatment. Results showed that the agent did not promote body- weight gain in the diabetic mice. Instead, the S26948-treated mice gained less weight than the controls, indicating " a profoundly decreased food efficiency, " the authors write. They concluded that S26948's pattern of coactivator recruitment, which differs from that of rosiglitazone, decreases its adipogenic capacity compared with rosiglitazone. In a cohort of homozygous human apolipoprotein E2 knock-in mice, S26948 reduced atherosclerotic lesion surfaces by 46% compared with controls. Rosiglitazone had no effect on atherosclerotic lesion size. They add that this line of research is ongoing with related compounds that are considered even more promising, not specifically with S26948. Diabetes 2007;56 11.%% MW - Depomed Says FDA Approves 1000 Mg Strength Tablets of Glumetza (Reuters) Jan 02 - Depomed Inc said U.S. health regulators have approved the 1000 mg strength tablets of Glumetza, an extended-release formulation of metformin, for patients with T2. The specialty pharmaceutical company said it acquired exclusive US rights to the 1000 mg formulation of Glumetza in December 2005 Abbreviations: T1DM - type 1 diabetes mellitus T2DM - type 2; ADA - American Diabetes Association; BP - blood pressure; DM - diabetes Mellitus;HTN - hypertension; MW Medscape Web MD; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google. Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities. Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thlvistacenter (DOT) <mailto:thl%40vistacenter.org> org __________ NOD32 2779 (20080109) Information __________ This message was checked by NOD32 antivirus system. http://www.eset. <http://www.eset.com> com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2008 Report Share Posted January 11, 2008 My wife is t2, and a t2 can in fact have a hypoglycemic reaction. A t2 is not constantly trying to find that balance between food intake and insulin dosages, but when the affect of their medication causes insulin to react more than expected, they can have low bg. Harry is t2 I believe, so perhaps he'll jump in on this one. Dave articles 1. ADA - Depression May Lead to Type 2 Diabetes Jan-2-2008 Researchers believe there is a link between chronic depression and the development of T2DM in adults age 65 years and up. Using responses from over 4,600 people without diabetes at the outset to the National Institutes of Health's Center for Epidemiological Studies Depression Scale, the researchers saw a 50% greater chance of developing DM during the course of the 10-year study among those noting high depressive symptoms--even after accounting for weight and activity levels. They state that depression has dramatic impacts on the autonomic nervous system, moving from a resting state to a responsive state under stress; insulin production is shut down to handle potential threats when the body is in the responsive state. Similar research by Washington University School of Medicine determined that when adults have both depression and T2, 90% of those experienced depression first. News summaries C2007 Information, Inc. Chicago Tribune (12/25/07) 2.%% MW - Habituation of Brain Responses Tied to Unawareness of Hypoglycemia (Reuters Health) Dec 31 - Attenuation of amygdala and frontal cortical responses to low blood glucose concentration may lead to a lack of hypoglycemia awareness in patients with T1DM. The lead researcher told Reuters Health that the studies are early However, she said, " We think they may have important implications for people with T1 who have lost their ability to recognize early hypoglycemia ... and are therefore at high risk for more severe hypoglycemia with confusion and even coma. " The team used FDG-labeled positron emission tomography to examine responses to euglycemia and hypoglycemia in 6 patients with hypoglycemia awareness and 7 without such awareness. FDG uptake was increased in the left amygdala in hypoglycemia awareness, but not in hypoglycemia unawareness. The team also found a " robust increase " bilaterally in the ventral striatum during hypoglycemia unawareness. Further analysis indicated bilateral attenuated activation of brain stem regions and less deactivation in lateral orbitofrontal cortex in hypoglycemia unawareness. " The data suggest, that this group of people, perhaps 25% of people who have had their DM for more than 15 years, have an altered brain response to a hypoglycemic episode in which they not only fail to feel that they are hypoglycemic, but they also fail to generate the brain message that the hypoglycemia is unpleasant and dangerous. " In fact, " the message generated may even be faintly rewarding, which would actually encourage experience of further hypoglycemia, " she added. " If this interpretation is correct, we will need to use additional strategies, such as those currently successful in changing other patterns of repeated behavior that are damaging -- for example, smoking and drinking alcohol -- to help people avoid hypoglycemia long-term, and recover their awareness of those occasional episodes that are inevitably part of today's insulin therapies. " Diabetes 2007;56. 3.%% MW-Sirolimus Stents May Reduce Restenosis in Diabetics With Coronary Disease (Reuters Health) Jan 04 - Compared with paclitaxel-eluting stents (PES), sirolimus-eluting stents (SES) appear to decrease the risk of in-stent late luminal loss in diabetics with coronary artery disease, new research shows. Comparing PES with SES has been difficult since there are so many individual variables that contribute to neointimal hyperplasia. In the present study, the researchers addressed this problem by comparing PES and SES directly in the same diabetic patient. [60 patients - 60 lesions were successfully treated with PES and 60 with SES] On multivariate analysis, the type of drug-eluting stent was the only independent predictor of in-stent late luminal loss. Specifically, in-stent late luminal loss [loss of the open area in vessel] was 2.3-times more likely when a PES rather than a SES was used. Further research is needed to determine if the better angiographic results achieved with SES actually translate into long-term clinical benefits, the authors conclude. Diabetes Care 2008;31. 4.%% MW - Retinopathy Linked to Subclinical Coronary Artery Disease Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 03 - Retinal microvascular changes are associated with increased coronary artery calcification (CAC), an indicator of subclinical coronary macrovascular disease, findings from the prospective Multi-Ethnic Study of Atherosclerosis (MESA) suggest. [6,000 subjects age 45 -84 years without a history of clinical cardiovascular disease. They underwent chest computed tomography to measure coronary artery calcification and fundus photography to assess retinal disease. Retinopathy was defined as the presence of microaneurysms, hemorrhages, cotton wool spots, intraretinal microvascular abnormalities, hard exudates, venous beading or new vessels. CAC was present in about half of the subjects. Retinopathy was present in 14.3% of subjects with no CAC, 17.2% of subjects with mild CAC, and 20.8% of those with moderate to severe CAC. " The association between retinopathy and moderate-to-severe CAC was present in all ethnic groups and remained significant in both men and women and in persons with and without diabetes or hypertension, " the investigators found. They conclude that " common pathophysiologic processes may underlie both microvascular and macrovascular disease. " Specifically, they suggest that " retinopathy signs ...reflect generalized endothelial dysfunction, which in the coronary circulation may promote atherogenesis. " " Inflammatory factors may also be involved " when patients without hypertension or diabetes, and with generally low cardiovascular risk profiles, present with retinopathy and coronary artery calcification, h. " As yet, there are no direct clinical implications from our study, " the ophthalmologist researcher said, " but physicians and patients should be aware that these conditions are related. . patients with retinopathy may be at higher risk of both subclinical heart disease and clinical heart disease, such as heart failure. " On the other hand, retinopathy is reversible..Reversal may occur in 3 years and is associated with lower BP and glucose levels, higher physical activity, and less obesity, " he said. " It is possible, but not proven, that reversal is associated with lower risk of cardiovascular disease. " the team is now evaluating the value of adding a retinal examination to a coronary calcium CT scan for predicting cardiovascular disease. Am J Epidemiol 2008;167: 5.%% MW - Alpha-Linolenic Acid May Lower Risk of Diabetic Peripheral Neuropathy Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 07 - Dietary intake of alpha-linolenic acid was associated with reduced incidence of diabetic peripheral neuropathy in a new analysis of data from the National Health and Nutrition Examination Survey (NHANES) 1999-2004. Alpha-linolenic acid is an omega-3 fatty acid found in many vegetable oils, including flaxseed, walnuts, and canola oil. The researchers identified 1062 diabetics age 40 and older for whom complete 24-hour dietary recall data were recorded. Peripheral neuropathy had been assessed using a nylon monofilament at three plantar sites on each foot to test for sensation. Dr. Eberhardt's group calculated the intake of total polyunsaturated fatty acids and of seven specific fatty acids. In multivariate analyses, they adjusted for age, sex, race, education, height, weight, diabetes duration, glycemic control, hypertension, smoking, and total calorie intake. Relative to adults in the lowest quintile [fifth] of alpha-linolenic acid intake the odds of having peripheral neuropathy was 0.54 for subjects in the fourth quintile (1.35 - 2.10 g/day) of intake and 0.40 for adults in the fifth quintile (2.11 g/day or higher). High dietary intake of alpha-linolenic acid is associated with reduced risk of vascular disease (coronary heart disease and hypertension), the team points out. " The protective effect of alpha-linolenic acid on macrovascular diseases and its association with diabetic peripheral neuropathy may be due to a similar biological mechanism. " They recommend further study to verify a protective effect of alpha-linolenic acid in patients with diabetes. Diabetes Care 2008;31. 6.%% MW-Fitness, Fatness, and Cardiovascular Risk Factors in Type 2 Diabetes: Look AHEAD Study Med Sci Sports Exerc. 2007;39(12) C2007 American College of Sports Medicine 01/03/2008 Purpose: Most studies comparing the effects of fitness and fatness on cardiovascular (CVD) risk have been done with young, healthy participants with low rates of obesity and high levels of fitness. The present study examined the association of cardiorespiratory fitness and obesity with CVD risk factors in an ethnically diverse sample of overweight/obese individuals with T2DM. [ Baseline data from Look AHEAD, 5145 overweight or obese individuals with T2]..Among the CVD risk factors, we examined continuous outcomes such as HbA1c, HDL, LDL, triglycerides, SBP, diastolic blood pressure (DBP), ABI, and 1-yr CVD risk estimate using the Framingham risk prediction equation. . At entry into the study, participants averaged 58.7 and had a DM duration of 6.8. 60% were women; 63.2% were white, 15.7% were African American, 13.2% Hispanic, 5.0% Native American, and 1.0% Asian American. In conclusion, this study shows that fitness and fatness are highly associated; thus, it is unusual to find individuals who are obese, yet very fit. Moreover, both fitness and fatness are related to CVD risk factors, although the strength of the associations for fitness versus fatness differed for specific risk factors. Of particular note is the strong association of fitness with HbA1c, ABI, and Framingham risk score in this population, and the relationships of BMI with SBP. Look AHEAD is an ongoing trial; it is expected to last through the year 2012. Half of the participants are receiving intensive lifestyle intervention, and half receive diabetes education and support. Changes in weight, fitness, and CVD risk factors are measured periodically throughout the study; the primary outcome measure is CVD morbidity and mortality. 7.%% MW - Imaging to Assess Effect of Medical Therapy in Patients With Diabetes Mellitus Br J Diabetes Vasc Dis. 2007;7(4): 01/02/2008 Abstract - The incidence of T2DM is rapidly increasing throughout the world. As an independent risk factor for cardiovascular disease both at the microvascular and macrovascular level, DM is a condition that deserves the most aggressive medical management... invasive techniques have been extensively used to assess coronary atherosclerosis progression and drug efficacy in the general population and smaller subsets of DM patients. While even minimal luminal stenosis reduction was associated with very significant reduction in event rates in the general population, similar data are lacking in DM patients. Although sensitive, an obvious limitation of these techniques is their invasive nature and the radiation exposure, besides a very considerable operational cost. Hence, additional non-invasive imaging techniques have been adopted to assess plaque progression or its haemodynamic effects in diabetic patients. Carotid Intima Media Thickness - Two decades ago investigators showed that the thickness of the carotid wall (intima and media layer taken together) measured ultrasonographically was associated with the presence and extent of atherosclerosis of the aorta..several randomised and epidemiological studies clearly proved the value of the cIMT as a marker of CV risk. An increased cIMT has been associated with risk of MI and CVA in the elderly (> 65 years) as well as younger age groups. cIMT is a marker of atherosclerosis burden rather than a surrogate for obstructive CAD. Insulin resistance alone in the absence of clinical diabetes has been associated with an increased cIMT.. Furthermore, cIMT appears to progress faster in diabetic patients than in all other patients. Medical Interventions -Measurement of cIMT progression has been utilised to assess efficacy of medical therapy in several studies in DM patients. A short- and a long-term follow-up study of 1,229 T1DM patients randomised to either standard or intensive glucose-reducing therapy, compared cIMT progression in diabetes with that of age and sex-matched non-diabetic individuals...cIMT progression was not different at the end of the first year of follow-up between controls and patients receiving intensive and standard therapy, but it was significantly greater in the diabetic than control subjects at the end of 6.5 years of follow-up. Coronary Artery Calcium - Coronary artery calcium is deposited in the atherosclerotic milieu as the plaque develops via active mechanisms resembling bone formation. . it has been shown that there is an excellent correlation(r=0.98) between CAC measured on CCT and atherosclerotic plaque area. Whether CAC imaging adds prognostic information in diabetes mellitus remains unclear. Hypertension and several nontraditional CV risk factors have been associated with CAC progression in DM subjects. .. Additionally, a greater proportion of DM than non-diabetic patients developed CAC during follow-up if no CAC was present at baseline (42% vs. 25%. Finally, as reported in the general population, CAC progression was linked with adverse coronary events during follow-up. .DM patients who suffered a MI during follow-up demonstrated a 4-fold and 2.5-fold greater CAC progression than non-diabetic subjects receiving and not receiving statins, respectively. CAC imaging appears to be a reliable means to assess risk connected with subclinical atherosclerosis in the general population, although some debate remains in diabetic patients. Functional Imaging - Various forms of nuclear myocardial perfusion imaging have been utilised in DM patients to assess the effect of glycaemic metabolism on vascular function. Indeed, data suggest that coronary vasomotor abnormalities accompany glucose metabolism impairment and that vascular function deteriorates with increasing severity of insulin-resistance and glucose intolerance. Summary - The existing evidence suggests that many modern imaging modalities may be utilised to monitor the effectiveness of medical therapy for diabetes on the CV system. Indeed, almost all surrogate markers of atherosclerosis have been studied in diabetic patients and have shown some validity for this purpose. However, many of the reported differences were very small, some were obtained with invasive techniques and many implied exposure to radiation. Finally, very little evidence has so far linked the occurrence of events to the progression of these markers of disease. Hence, future appropriately powered studies should focus on whether reducing plaque progression and restoring vascular vasomotor activity translate into a significant improvement of CV morbidity and mortality in diabetes mellitus. 8.%% Type 2 Diabetes -- Insulin Therapy Initiating Insulin in the Type 2 Diabetes Patient Medscape Diabetes & Endocrinology. 2007; C2007 Medscape 12/28/2007 Introduction - T2DM is a progressive disease, and most patients will eventually need insulin to achieve euglycemia.[normal blood sugar level] Furthermore, data have shown that early and aggressive intervention to lower blood glucose reduces the risk of complications of the disease. However, even with the ever-growing list of new medications available, it can be a daunting task for healthcare providers to decide which treatment regimen is appropriate to manage a particular patient. New guidelines and algorithms can help determine which patients with type 2 diabetes should be started on insulin and when insulin should be initiated. The goals of insulin therapy are the same as the goals of any therapy for the treatment of diabetes: to achieve optimal glycemic control without causing undue hypoglycemia or excessive weight gain and to minimize the impact on lifestyle. The Challenges of Insulin Therapy Psychological insulin resistance is a real phenomenon. Individuals with diabetes often feel that insulin is the beginning of the end. They fear taking the injection and feel that there is a stigma associated with insulin. Insulin therapy can, in fact, be a real pain both literally and figuratively. It is intrusive, can limit spontaneity, and can interfere with daily activities. As a consequence, adhering to an insulin regimen has been difficult for many patients. Because symptom severity is not indicative of disease severity, many individuals do not understand the need for optimal glycemic control or its role in preventing complications. This lack of understanding can also result in significant resistance as well as decreased adherence once patients do agree to begin insulin. That nonadherence will most likely carry over to other parts of diabetes management, such as blood glucose testing. In addition, individuals fear that they will experience hypoglycemia and gain weight. To top it off, there is the inconvenience and the disruption of daily routines and privacy. Providers, on the other hand, also experience psychological resistance to insulin therapy. They also may fear hypoglycemia and have concern for their patients' safety. In patients who already have a weight issue, the risk of gaining weight adds to the complexity of the decision to initiate insulin. All this, combined with the time it takes to educate the patient and titrate the dose, adds up to a lot of work. Teaming up with a diabetes educator who is knowledgeable in diabetes and insulin management can help alleviate this workload. However, even if this resource is not available, simple algorithms and titration schedules make initiation and titration of insulin easier. 9.%% MW -Blood Pressure and Risk of Developing Type 2 Diabetes Mellitus: The Women's Health Study Eur Heart J. 2007;28(23) C2007 Oxford University Press 01/02/2008 Abstract Aims: To examine the relationship of blood pressure (BP) and BP progression with the subsequent development of T2DM. [ prospective cohort study among 38 172 women free of DM and cardiovascular disease at baseline. Women were classified into four categories according to self-reported baseline BP] During 10.2 years of follow-up, 1672 women developed T2. Conclusion - Our study provides strong evidence that baseline BP and BP progression are associated with an increased risk of incident T2. Clinicians should be aware of these relationships to optimize the management of patients at increased risk for cardiovascular disease. 10.%% MW - New PPAR-Gamma Modulator Has Potent Antidiabetes and Antiatherogenic Effects Reuters Health Information 2007. (Reuters Health) Dec 28 - A new specific peroxisome proliferator-activated receptor (PPAR) modulator has demonstrated promise in a French in vitro and in vivo study of mice.The researchers note that the thiazolidinedione (TZD) class of drugs, although effective and widely used to treat T2 tends to cause weight gain. This study was undertaken to evaluate S26948, a novel ligand for PPAR-gamma. The study found that S26948 is a specific high-affinity agonist for PPAR-gamma, binding it with the same affinity as the TZD rosiglitazone does. Further, the results suggest that S26948 promoted a PPAR-gamma conformation distinct from that elicited by rosiglitazone. In addition, [it] decreased blood glucose levels and plasma insulin levels in male ob/ob mice, indicating that the drug increased insulin sensitivity, paralleling the effects of rosiglitazone treatment. Results showed that the agent did not promote body- weight gain in the diabetic mice. Instead, the S26948-treated mice gained less weight than the controls, indicating " a profoundly decreased food efficiency, " the authors write. They concluded that S26948's pattern of coactivator recruitment, which differs from that of rosiglitazone, decreases its adipogenic capacity compared with rosiglitazone. In a cohort of homozygous human apolipoprotein E2 knock-in mice, S26948 reduced atherosclerotic lesion surfaces by 46% compared with controls. Rosiglitazone had no effect on atherosclerotic lesion size. They add that this line of research is ongoing with related compounds that are considered even more promising, not specifically with S26948. Diabetes 2007;56 11.%% MW - Depomed Says FDA Approves 1000 Mg Strength Tablets of Glumetza (Reuters) Jan 02 - Depomed Inc said U.S. health regulators have approved the 1000 mg strength tablets of Glumetza, an extended-release formulation of metformin, for patients with T2. The specialty pharmaceutical company said it acquired exclusive US rights to the 1000 mg formulation of Glumetza in December 2005 Abbreviations: T1DM - type 1 diabetes mellitus T2DM - type 2; ADA - American Diabetes Association; BP - blood pressure; DM - diabetes Mellitus;HTN - hypertension; MW Medscape Web MD; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google. Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities. Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thlvistacenter (DOT) <mailto:thl%40vistacenter.org> org __________ NOD32 2779 (20080109) Information __________ This message was checked by NOD32 antivirus system. http://www.eset. <http://www.eset.com> com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2008 Report Share Posted January 11, 2008 I am a type 2 diabetic, and if my sugar levels get to low, I find that I start to shake and feel very weak. I am pleased to say, I don't get those feelings very often. Rowe articles 1. ADA - Depression May Lead to Type 2 Diabetes Jan-2-2008 Researchers believe there is a link between chronic depression and the development of T2DM in adults age 65 years and up. Using responses from over 4,600 people without diabetes at the outset to the National Institutes of Health's Center for Epidemiological Studies Depression Scale, the researchers saw a 50% greater chance of developing DM during the course of the 10-year study among those noting high depressive symptoms--even after accounting for weight and activity levels. They state that depression has dramatic impacts on the autonomic nervous system, moving from a resting state to a responsive state under stress; insulin production is shut down to handle potential threats when the body is in the responsive state. Similar research by Washington University School of Medicine determined that when adults have both depression and T2, 90% of those experienced depression first. News summaries C2007 Information, Inc. Chicago Tribune (12/25/07) 2.%% MW - Habituation of Brain Responses Tied to Unawareness of Hypoglycemia (Reuters Health) Dec 31 - Attenuation of amygdala and frontal cortical responses to low blood glucose concentration may lead to a lack of hypoglycemia awareness in patients with T1DM. The lead researcher told Reuters Health that the studies are early However, she said, " We think they may have important implications for people with T1 who have lost their ability to recognize early hypoglycemia ... and are therefore at high risk for more severe hypoglycemia with confusion and even coma. " The team used FDG-labeled positron emission tomography to examine responses to euglycemia and hypoglycemia in 6 patients with hypoglycemia awareness and 7 without such awareness. FDG uptake was increased in the left amygdala in hypoglycemia awareness, but not in hypoglycemia unawareness. The team also found a " robust increase " bilaterally in the ventral striatum during hypoglycemia unawareness. Further analysis indicated bilateral attenuated activation of brain stem regions and less deactivation in lateral orbitofrontal cortex in hypoglycemia unawareness. " The data suggest, that this group of people, perhaps 25% of people who have had their DM for more than 15 years, have an altered brain response to a hypoglycemic episode in which they not only fail to feel that they are hypoglycemic, but they also fail to generate the brain message that the hypoglycemia is unpleasant and dangerous. " In fact, " the message generated may even be faintly rewarding, which would actually encourage experience of further hypoglycemia, " she added. " If this interpretation is correct, we will need to use additional strategies, such as those currently successful in changing other patterns of repeated behavior that are damaging -- for example, smoking and drinking alcohol -- to help people avoid hypoglycemia long-term, and recover their awareness of those occasional episodes that are inevitably part of today's insulin therapies. " Diabetes 2007;56. 3.%% MW-Sirolimus Stents May Reduce Restenosis in Diabetics With Coronary Disease (Reuters Health) Jan 04 - Compared with paclitaxel-eluting stents (PES), sirolimus-eluting stents (SES) appear to decrease the risk of in-stent late luminal loss in diabetics with coronary artery disease, new research shows. Comparing PES with SES has been difficult since there are so many individual variables that contribute to neointimal hyperplasia. In the present study, the researchers addressed this problem by comparing PES and SES directly in the same diabetic patient. [60 patients - 60 lesions were successfully treated with PES and 60 with SES] On multivariate analysis, the type of drug-eluting stent was the only independent predictor of in-stent late luminal loss. Specifically, in-stent late luminal loss [loss of the open area in vessel] was 2.3-times more likely when a PES rather than a SES was used. Further research is needed to determine if the better angiographic results achieved with SES actually translate into long-term clinical benefits, the authors conclude. Diabetes Care 2008;31. 4.%% MW - Retinopathy Linked to Subclinical Coronary Artery Disease Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 03 - Retinal microvascular changes are associated with increased coronary artery calcification (CAC), an indicator of subclinical coronary macrovascular disease, findings from the prospective Multi-Ethnic Study of Atherosclerosis (MESA) suggest. [6,000 subjects age 45 -84 years without a history of clinical cardiovascular disease. They underwent chest computed tomography to measure coronary artery calcification and fundus photography to assess retinal disease. Retinopathy was defined as the presence of microaneurysms, hemorrhages, cotton wool spots, intraretinal microvascular abnormalities, hard exudates, venous beading or new vessels. CAC was present in about half of the subjects. Retinopathy was present in 14.3% of subjects with no CAC, 17.2% of subjects with mild CAC, and 20.8% of those with moderate to severe CAC. " The association between retinopathy and moderate-to-severe CAC was present in all ethnic groups and remained significant in both men and women and in persons with and without diabetes or hypertension, " the investigators found. They conclude that " common pathophysiologic processes may underlie both microvascular and macrovascular disease. " Specifically, they suggest that " retinopathy signs ...reflect generalized endothelial dysfunction, which in the coronary circulation may promote atherogenesis. " " Inflammatory factors may also be involved " when patients without hypertension or diabetes, and with generally low cardiovascular risk profiles, present with retinopathy and coronary artery calcification, h. " As yet, there are no direct clinical implications from our study, " the ophthalmologist researcher said, " but physicians and patients should be aware that these conditions are related. . patients with retinopathy may be at higher risk of both subclinical heart disease and clinical heart disease, such as heart failure. " On the other hand, retinopathy is reversible..Reversal may occur in 3 years and is associated with lower BP and glucose levels, higher physical activity, and less obesity, " he said. " It is possible, but not proven, that reversal is associated with lower risk of cardiovascular disease. " the team is now evaluating the value of adding a retinal examination to a coronary calcium CT scan for predicting cardiovascular disease. Am J Epidemiol 2008;167: 5.%% MW - Alpha-Linolenic Acid May Lower Risk of Diabetic Peripheral Neuropathy Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 07 - Dietary intake of alpha-linolenic acid was associated with reduced incidence of diabetic peripheral neuropathy in a new analysis of data from the National Health and Nutrition Examination Survey (NHANES) 1999-2004. Alpha-linolenic acid is an omega-3 fatty acid found in many vegetable oils, including flaxseed, walnuts, and canola oil. The researchers identified 1062 diabetics age 40 and older for whom complete 24-hour dietary recall data were recorded. Peripheral neuropathy had been assessed using a nylon monofilament at three plantar sites on each foot to test for sensation. Dr. Eberhardt's group calculated the intake of total polyunsaturated fatty acids and of seven specific fatty acids. In multivariate analyses, they adjusted for age, sex, race, education, height, weight, diabetes duration, glycemic control, hypertension, smoking, and total calorie intake. Relative to adults in the lowest quintile [fifth] of alpha-linolenic acid intake the odds of having peripheral neuropathy was 0.54 for subjects in the fourth quintile (1.35 - 2.10 g/day) of intake and 0.40 for adults in the fifth quintile (2.11 g/day or higher). High dietary intake of alpha-linolenic acid is associated with reduced risk of vascular disease (coronary heart disease and hypertension), the team points out. " The protective effect of alpha-linolenic acid on macrovascular diseases and its association with diabetic peripheral neuropathy may be due to a similar biological mechanism. " They recommend further study to verify a protective effect of alpha-linolenic acid in patients with diabetes. Diabetes Care 2008;31. 6.%% MW-Fitness, Fatness, and Cardiovascular Risk Factors in Type 2 Diabetes: Look AHEAD Study Med Sci Sports Exerc. 2007;39(12) C2007 American College of Sports Medicine 01/03/2008 Purpose: Most studies comparing the effects of fitness and fatness on cardiovascular (CVD) risk have been done with young, healthy participants with low rates of obesity and high levels of fitness. The present study examined the association of cardiorespiratory fitness and obesity with CVD risk factors in an ethnically diverse sample of overweight/obese individuals with T2DM. [ Baseline data from Look AHEAD, 5145 overweight or obese individuals with T2]..Among the CVD risk factors, we examined continuous outcomes such as HbA1c, HDL, LDL, triglycerides, SBP, diastolic blood pressure (DBP), ABI, and 1-yr CVD risk estimate using the Framingham risk prediction equation. . At entry into the study, participants averaged 58.7 and had a DM duration of 6.8. 60% were women; 63.2% were white, 15.7% were African American, 13.2% Hispanic, 5.0% Native American, and 1.0% Asian American. In conclusion, this study shows that fitness and fatness are highly associated; thus, it is unusual to find individuals who are obese, yet very fit. Moreover, both fitness and fatness are related to CVD risk factors, although the strength of the associations for fitness versus fatness differed for specific risk factors. Of particular note is the strong association of fitness with HbA1c, ABI, and Framingham risk score in this population, and the relationships of BMI with SBP. Look AHEAD is an ongoing trial; it is expected to last through the year 2012. Half of the participants are receiving intensive lifestyle intervention, and half receive diabetes education and support. Changes in weight, fitness, and CVD risk factors are measured periodically throughout the study; the primary outcome measure is CVD morbidity and mortality. 7.%% MW - Imaging to Assess Effect of Medical Therapy in Patients With Diabetes Mellitus Br J Diabetes Vasc Dis. 2007;7(4): 01/02/2008 Abstract - The incidence of T2DM is rapidly increasing throughout the world. As an independent risk factor for cardiovascular disease both at the microvascular and macrovascular level, DM is a condition that deserves the most aggressive medical management... invasive techniques have been extensively used to assess coronary atherosclerosis progression and drug efficacy in the general population and smaller subsets of DM patients. While even minimal luminal stenosis reduction was associated with very significant reduction in event rates in the general population, similar data are lacking in DM patients. Although sensitive, an obvious limitation of these techniques is their invasive nature and the radiation exposure, besides a very considerable operational cost. Hence, additional non-invasive imaging techniques have been adopted to assess plaque progression or its haemodynamic effects in diabetic patients. Carotid Intima Media Thickness - Two decades ago investigators showed that the thickness of the carotid wall (intima and media layer taken together) measured ultrasonographically was associated with the presence and extent of atherosclerosis of the aorta..several randomised and epidemiological studies clearly proved the value of the cIMT as a marker of CV risk. An increased cIMT has been associated with risk of MI and CVA in the elderly (> 65 years) as well as younger age groups. cIMT is a marker of atherosclerosis burden rather than a surrogate for obstructive CAD. Insulin resistance alone in the absence of clinical diabetes has been associated with an increased cIMT.. Furthermore, cIMT appears to progress faster in diabetic patients than in all other patients. Medical Interventions -Measurement of cIMT progression has been utilised to assess efficacy of medical therapy in several studies in DM patients. A short- and a long-term follow-up study of 1,229 T1DM patients randomised to either standard or intensive glucose-reducing therapy, compared cIMT progression in diabetes with that of age and sex-matched non-diabetic individuals...cIMT progression was not different at the end of the first year of follow-up between controls and patients receiving intensive and standard therapy, but it was significantly greater in the diabetic than control subjects at the end of 6.5 years of follow-up. Coronary Artery Calcium - Coronary artery calcium is deposited in the atherosclerotic milieu as the plaque develops via active mechanisms resembling bone formation. . it has been shown that there is an excellent correlation(r=0.98) between CAC measured on CCT and atherosclerotic plaque area. Whether CAC imaging adds prognostic information in diabetes mellitus remains unclear. Hypertension and several nontraditional CV risk factors have been associated with CAC progression in DM subjects. .. Additionally, a greater proportion of DM than non-diabetic patients developed CAC during follow-up if no CAC was present at baseline (42% vs. 25%. Finally, as reported in the general population, CAC progression was linked with adverse coronary events during follow-up. .DM patients who suffered a MI during follow-up demonstrated a 4-fold and 2.5-fold greater CAC progression than non-diabetic subjects receiving and not receiving statins, respectively. CAC imaging appears to be a reliable means to assess risk connected with subclinical atherosclerosis in the general population, although some debate remains in diabetic patients. Functional Imaging - Various forms of nuclear myocardial perfusion imaging have been utilised in DM patients to assess the effect of glycaemic metabolism on vascular function. Indeed, data suggest that coronary vasomotor abnormalities accompany glucose metabolism impairment and that vascular function deteriorates with increasing severity of insulin-resistance and glucose intolerance. Summary - The existing evidence suggests that many modern imaging modalities may be utilised to monitor the effectiveness of medical therapy for diabetes on the CV system. Indeed, almost all surrogate markers of atherosclerosis have been studied in diabetic patients and have shown some validity for this purpose. However, many of the reported differences were very small, some were obtained with invasive techniques and many implied exposure to radiation. Finally, very little evidence has so far linked the occurrence of events to the progression of these markers of disease. Hence, future appropriately powered studies should focus on whether reducing plaque progression and restoring vascular vasomotor activity translate into a significant improvement of CV morbidity and mortality in diabetes mellitus. 8.%% Type 2 Diabetes -- Insulin Therapy Initiating Insulin in the Type 2 Diabetes Patient Medscape Diabetes & Endocrinology. 2007; C2007 Medscape 12/28/2007 Introduction - T2DM is a progressive disease, and most patients will eventually need insulin to achieve euglycemia.[normal blood sugar level] Furthermore, data have shown that early and aggressive intervention to lower blood glucose reduces the risk of complications of the disease. However, even with the ever-growing list of new medications available, it can be a daunting task for healthcare providers to decide which treatment regimen is appropriate to manage a particular patient. New guidelines and algorithms can help determine which patients with type 2 diabetes should be started on insulin and when insulin should be initiated. The goals of insulin therapy are the same as the goals of any therapy for the treatment of diabetes: to achieve optimal glycemic control without causing undue hypoglycemia or excessive weight gain and to minimize the impact on lifestyle. The Challenges of Insulin Therapy Psychological insulin resistance is a real phenomenon. Individuals with diabetes often feel that insulin is the beginning of the end. They fear taking the injection and feel that there is a stigma associated with insulin. Insulin therapy can, in fact, be a real pain both literally and figuratively. It is intrusive, can limit spontaneity, and can interfere with daily activities. As a consequence, adhering to an insulin regimen has been difficult for many patients. Because symptom severity is not indicative of disease severity, many individuals do not understand the need for optimal glycemic control or its role in preventing complications. This lack of understanding can also result in significant resistance as well as decreased adherence once patients do agree to begin insulin. That nonadherence will most likely carry over to other parts of diabetes management, such as blood glucose testing. In addition, individuals fear that they will experience hypoglycemia and gain weight. To top it off, there is the inconvenience and the disruption of daily routines and privacy. Providers, on the other hand, also experience psychological resistance to insulin therapy. They also may fear hypoglycemia and have concern for their patients' safety. In patients who already have a weight issue, the risk of gaining weight adds to the complexity of the decision to initiate insulin. All this, combined with the time it takes to educate the patient and titrate the dose, adds up to a lot of work. Teaming up with a diabetes educator who is knowledgeable in diabetes and insulin management can help alleviate this workload. However, even if this resource is not available, simple algorithms and titration schedules make initiation and titration of insulin easier. 9.%% MW -Blood Pressure and Risk of Developing Type 2 Diabetes Mellitus: The Women's Health Study Eur Heart J. 2007;28(23) C2007 Oxford University Press 01/02/2008 Abstract Aims: To examine the relationship of blood pressure (BP) and BP progression with the subsequent development of T2DM. [ prospective cohort study among 38 172 women free of DM and cardiovascular disease at baseline. Women were classified into four categories according to self-reported baseline BP] During 10.2 years of follow-up, 1672 women developed T2. Conclusion - Our study provides strong evidence that baseline BP and BP progression are associated with an increased risk of incident T2. Clinicians should be aware of these relationships to optimize the management of patients at increased risk for cardiovascular disease. 10.%% MW - New PPAR-Gamma Modulator Has Potent Antidiabetes and Antiatherogenic Effects Reuters Health Information 2007. (Reuters Health) Dec 28 - A new specific peroxisome proliferator-activated receptor (PPAR) modulator has demonstrated promise in a French in vitro and in vivo study of mice.The researchers note that the thiazolidinedione (TZD) class of drugs, although effective and widely used to treat T2 tends to cause weight gain. This study was undertaken to evaluate S26948, a novel ligand for PPAR-gamma. The study found that S26948 is a specific high-affinity agonist for PPAR-gamma, binding it with the same affinity as the TZD rosiglitazone does. Further, the results suggest that S26948 promoted a PPAR-gamma conformation distinct from that elicited by rosiglitazone. In addition, [it] decreased blood glucose levels and plasma insulin levels in male ob/ob mice, indicating that the drug increased insulin sensitivity, paralleling the effects of rosiglitazone treatment. Results showed that the agent did not promote body- weight gain in the diabetic mice. Instead, the S26948-treated mice gained less weight than the controls, indicating " a profoundly decreased food efficiency, " the authors write. They concluded that S26948's pattern of coactivator recruitment, which differs from that of rosiglitazone, decreases its adipogenic capacity compared with rosiglitazone. In a cohort of homozygous human apolipoprotein E2 knock-in mice, S26948 reduced atherosclerotic lesion surfaces by 46% compared with controls. Rosiglitazone had no effect on atherosclerotic lesion size. They add that this line of research is ongoing with related compounds that are considered even more promising, not specifically with S26948. Diabetes 2007;56 11.%% MW - Depomed Says FDA Approves 1000 Mg Strength Tablets of Glumetza (Reuters) Jan 02 - Depomed Inc said U.S. health regulators have approved the 1000 mg strength tablets of Glumetza, an extended-release formulation of metformin, for patients with T2. The specialty pharmaceutical company said it acquired exclusive US rights to the 1000 mg formulation of Glumetza in December 2005 Abbreviations: T1DM - type 1 diabetes mellitus T2DM - type 2; ADA - American Diabetes Association; BP - blood pressure; DM - diabetes Mellitus;HTN - hypertension; MW Medscape Web MD; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google. Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities. Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thlvistacenter (DOT) <mailto:thl%40vistacenter.org> org __________ NOD32 2779 (20080109) Information __________ This message was checked by NOD32 antivirus system. http://www.eset. <http://www.eset.com> com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2008 Report Share Posted January 11, 2008 From what I understand type 2s on medication can have lows, but they tend to not be as severe as in those with type 1. Even type 2s on insulin seem to have less of a problem with sudden, severe lows from what I have read, for some reason. I could be wrong on this so I'd be interested to hear what those with type 2 on the list have to say. You would know you are experiencing lows if you have symptoms of hypoglycemia (shakiness, sweatiness, dizziness, hunger, headache, concentration and coordination difficulties, in severe cases loss of consciousness and seizures) and if your blood sugar tested low at this time. I always test when I feel low because sometimes I'm actually high, so never just assume you are low and treat unless it is an emergency. Jen Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2008 Report Share Posted January 11, 2008 Way back when I was just on oral meds, I use to have low sugar reactions on my glyburide 5mg. per day. I would especially get the shakes and sweats after swimming a mile in the pool. I still get low sugar reactions now that I am insulin dependent. Fortunately, I get the warnings of the low sugar reaction, and doing a bs test usually confirms that a low sugar reaction is exactly what I am having. My wife says I am having a low sugar reaction when I become argumentative, irritable, and a bs test usually proves she is right. When I have a low sugar reaction a four gram candy pepermint usually cures it or a four or five gram chocolate bar will do the same. It is always wise to test to see if this is the case in a low sugar reaction. Unfortunately, some Type 1's do not have a warning of the low sugar reaction. A niece of mine had a low sugar reaction while driving her car, and she wound up driving the car into her neighbor's house. Fortunately, she did not get injured. It only cost her several thousands of dollars to get the house and the car repaired. articles 1. ADA - Depression May Lead to Type 2 Diabetes Jan-2-2008 Researchers believe there is a link between chronic depression and the development of T2DM in adults age 65 years and up. Using responses from over 4,600 people without diabetes at the outset to the National Institutes of Health's Center for Epidemiological Studies Depression Scale, the researchers saw a 50% greater chance of developing DM during the course of the 10-year study among those noting high depressive symptoms--even after accounting for weight and activity levels. They state that depression has dramatic impacts on the autonomic nervous system, moving from a resting state to a responsive state under stress; insulin production is shut down to handle potential threats when the body is in the responsive state. Similar research by Washington University School of Medicine determined that when adults have both depression and T2, 90% of those experienced depression first. News summaries C2007 Information, Inc. Chicago Tribune (12/25/07) 2.%% MW - Habituation of Brain Responses Tied to Unawareness of Hypoglycemia (Reuters Health) Dec 31 - Attenuation of amygdala and frontal cortical responses to low blood glucose concentration may lead to a lack of hypoglycemia awareness in patients with T1DM. The lead researcher told Reuters Health that the studies are early However, she said, " We think they may have important implications for people with T1 who have lost their ability to recognize early hypoglycemia ... and are therefore at high risk for more severe hypoglycemia with confusion and even coma. " The team used FDG-labeled positron emission tomography to examine responses to euglycemia and hypoglycemia in 6 patients with hypoglycemia awareness and 7 without such awareness. FDG uptake was increased in the left amygdala in hypoglycemia awareness, but not in hypoglycemia unawareness. The team also found a " robust increase " bilaterally in the ventral striatum during hypoglycemia unawareness. Further analysis indicated bilateral attenuated activation of brain stem regions and less deactivation in lateral orbitofrontal cortex in hypoglycemia unawareness. " The data suggest, that this group of people, perhaps 25% of people who have had their DM for more than 15 years, have an altered brain response to a hypoglycemic episode in which they not only fail to feel that they are hypoglycemic, but they also fail to generate the brain message that the hypoglycemia is unpleasant and dangerous. " In fact, " the message generated may even be faintly rewarding, which would actually encourage experience of further hypoglycemia, " she added. " If this interpretation is correct, we will need to use additional strategies, such as those currently successful in changing other patterns of repeated behavior that are damaging -- for example, smoking and drinking alcohol -- to help people avoid hypoglycemia long-term, and recover their awareness of those occasional episodes that are inevitably part of today's insulin therapies. " Diabetes 2007;56. 3.%% MW-Sirolimus Stents May Reduce Restenosis in Diabetics With Coronary Disease (Reuters Health) Jan 04 - Compared with paclitaxel-eluting stents (PES), sirolimus-eluting stents (SES) appear to decrease the risk of in-stent late luminal loss in diabetics with coronary artery disease, new research shows. Comparing PES with SES has been difficult since there are so many individual variables that contribute to neointimal hyperplasia. In the present study, the researchers addressed this problem by comparing PES and SES directly in the same diabetic patient. [60 patients - 60 lesions were successfully treated with PES and 60 with SES] On multivariate analysis, the type of drug-eluting stent was the only independent predictor of in-stent late luminal loss. Specifically, in-stent late luminal loss [loss of the open area in vessel] was 2.3-times more likely when a PES rather than a SES was used. Further research is needed to determine if the better angiographic results achieved with SES actually translate into long-term clinical benefits, the authors conclude. Diabetes Care 2008;31. 4.%% MW - Retinopathy Linked to Subclinical Coronary Artery Disease Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 03 - Retinal microvascular changes are associated with increased coronary artery calcification (CAC), an indicator of subclinical coronary macrovascular disease, findings from the prospective Multi-Ethnic Study of Atherosclerosis (MESA) suggest. [6,000 subjects age 45 -84 years without a history of clinical cardiovascular disease. They underwent chest computed tomography to measure coronary artery calcification and fundus photography to assess retinal disease. Retinopathy was defined as the presence of microaneurysms, hemorrhages, cotton wool spots, intraretinal microvascular abnormalities, hard exudates, venous beading or new vessels. CAC was present in about half of the subjects. Retinopathy was present in 14.3% of subjects with no CAC, 17.2% of subjects with mild CAC, and 20.8% of those with moderate to severe CAC. " The association between retinopathy and moderate-to-severe CAC was present in all ethnic groups and remained significant in both men and women and in persons with and without diabetes or hypertension, " the investigators found. They conclude that " common pathophysiologic processes may underlie both microvascular and macrovascular disease. " Specifically, they suggest that " retinopathy signs ...reflect generalized endothelial dysfunction, which in the coronary circulation may promote atherogenesis. " " Inflammatory factors may also be involved " when patients without hypertension or diabetes, and with generally low cardiovascular risk profiles, present with retinopathy and coronary artery calcification, h. " As yet, there are no direct clinical implications from our study, " the ophthalmologist researcher said, " but physicians and patients should be aware that these conditions are related. . patients with retinopathy may be at higher risk of both subclinical heart disease and clinical heart disease, such as heart failure. " On the other hand, retinopathy is reversible..Reversal may occur in 3 years and is associated with lower BP and glucose levels, higher physical activity, and less obesity, " he said. " It is possible, but not proven, that reversal is associated with lower risk of cardiovascular disease. " the team is now evaluating the value of adding a retinal examination to a coronary calcium CT scan for predicting cardiovascular disease. Am J Epidemiol 2008;167: 5.%% MW - Alpha-Linolenic Acid May Lower Risk of Diabetic Peripheral Neuropathy Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 07 - Dietary intake of alpha-linolenic acid was associated with reduced incidence of diabetic peripheral neuropathy in a new analysis of data from the National Health and Nutrition Examination Survey (NHANES) 1999-2004. Alpha-linolenic acid is an omega-3 fatty acid found in many vegetable oils, including flaxseed, walnuts, and canola oil. The researchers identified 1062 diabetics age 40 and older for whom complete 24-hour dietary recall data were recorded. Peripheral neuropathy had been assessed using a nylon monofilament at three plantar sites on each foot to test for sensation. Dr. Eberhardt's group calculated the intake of total polyunsaturated fatty acids and of seven specific fatty acids. In multivariate analyses, they adjusted for age, sex, race, education, height, weight, diabetes duration, glycemic control, hypertension, smoking, and total calorie intake. Relative to adults in the lowest quintile [fifth] of alpha-linolenic acid intake the odds of having peripheral neuropathy was 0.54 for subjects in the fourth quintile (1.35 - 2.10 g/day) of intake and 0.40 for adults in the fifth quintile (2.11 g/day or higher). High dietary intake of alpha-linolenic acid is associated with reduced risk of vascular disease (coronary heart disease and hypertension), the team points out. " The protective effect of alpha-linolenic acid on macrovascular diseases and its association with diabetic peripheral neuropathy may be due to a similar biological mechanism. " They recommend further study to verify a protective effect of alpha-linolenic acid in patients with diabetes. Diabetes Care 2008;31. 6.%% MW-Fitness, Fatness, and Cardiovascular Risk Factors in Type 2 Diabetes: Look AHEAD Study Med Sci Sports Exerc. 2007;39(12) C2007 American College of Sports Medicine 01/03/2008 Purpose: Most studies comparing the effects of fitness and fatness on cardiovascular (CVD) risk have been done with young, healthy participants with low rates of obesity and high levels of fitness. The present study examined the association of cardiorespiratory fitness and obesity with CVD risk factors in an ethnically diverse sample of overweight/obese individuals with T2DM. [ Baseline data from Look AHEAD, 5145 overweight or obese individuals with T2]..Among the CVD risk factors, we examined continuous outcomes such as HbA1c, HDL, LDL, triglycerides, SBP, diastolic blood pressure (DBP), ABI, and 1-yr CVD risk estimate using the Framingham risk prediction equation. . At entry into the study, participants averaged 58.7 and had a DM duration of 6.8. 60% were women; 63.2% were white, 15.7% were African American, 13.2% Hispanic, 5.0% Native American, and 1.0% Asian American. In conclusion, this study shows that fitness and fatness are highly associated; thus, it is unusual to find individuals who are obese, yet very fit. Moreover, both fitness and fatness are related to CVD risk factors, although the strength of the associations for fitness versus fatness differed for specific risk factors. Of particular note is the strong association of fitness with HbA1c, ABI, and Framingham risk score in this population, and the relationships of BMI with SBP. Look AHEAD is an ongoing trial; it is expected to last through the year 2012. Half of the participants are receiving intensive lifestyle intervention, and half receive diabetes education and support. Changes in weight, fitness, and CVD risk factors are measured periodically throughout the study; the primary outcome measure is CVD morbidity and mortality. 7.%% MW - Imaging to Assess Effect of Medical Therapy in Patients With Diabetes Mellitus Br J Diabetes Vasc Dis. 2007;7(4): 01/02/2008 Abstract - The incidence of T2DM is rapidly increasing throughout the world. As an independent risk factor for cardiovascular disease both at the microvascular and macrovascular level, DM is a condition that deserves the most aggressive medical management... invasive techniques have been extensively used to assess coronary atherosclerosis progression and drug efficacy in the general population and smaller subsets of DM patients. While even minimal luminal stenosis reduction was associated with very significant reduction in event rates in the general population, similar data are lacking in DM patients. Although sensitive, an obvious limitation of these techniques is their invasive nature and the radiation exposure, besides a very considerable operational cost. Hence, additional non-invasive imaging techniques have been adopted to assess plaque progression or its haemodynamic effects in diabetic patients. Carotid Intima Media Thickness - Two decades ago investigators showed that the thickness of the carotid wall (intima and media layer taken together) measured ultrasonographically was associated with the presence and extent of atherosclerosis of the aorta..several randomised and epidemiological studies clearly proved the value of the cIMT as a marker of CV risk. An increased cIMT has been associated with risk of MI and CVA in the elderly (> 65 years) as well as younger age groups. cIMT is a marker of atherosclerosis burden rather than a surrogate for obstructive CAD. Insulin resistance alone in the absence of clinical diabetes has been associated with an increased cIMT.. Furthermore, cIMT appears to progress faster in diabetic patients than in all other patients. Medical Interventions -Measurement of cIMT progression has been utilised to assess efficacy of medical therapy in several studies in DM patients. A short- and a long-term follow-up study of 1,229 T1DM patients randomised to either standard or intensive glucose-reducing therapy, compared cIMT progression in diabetes with that of age and sex-matched non-diabetic individuals...cIMT progression was not different at the end of the first year of follow-up between controls and patients receiving intensive and standard therapy, but it was significantly greater in the diabetic than control subjects at the end of 6.5 years of follow-up. Coronary Artery Calcium - Coronary artery calcium is deposited in the atherosclerotic milieu as the plaque develops via active mechanisms resembling bone formation. . it has been shown that there is an excellent correlation(r=0.98) between CAC measured on CCT and atherosclerotic plaque area. Whether CAC imaging adds prognostic information in diabetes mellitus remains unclear. Hypertension and several nontraditional CV risk factors have been associated with CAC progression in DM subjects. .. Additionally, a greater proportion of DM than non-diabetic patients developed CAC during follow-up if no CAC was present at baseline (42% vs. 25%. Finally, as reported in the general population, CAC progression was linked with adverse coronary events during follow-up. .DM patients who suffered a MI during follow-up demonstrated a 4-fold and 2.5-fold greater CAC progression than non-diabetic subjects receiving and not receiving statins, respectively. CAC imaging appears to be a reliable means to assess risk connected with subclinical atherosclerosis in the general population, although some debate remains in diabetic patients. Functional Imaging - Various forms of nuclear myocardial perfusion imaging have been utilised in DM patients to assess the effect of glycaemic metabolism on vascular function. Indeed, data suggest that coronary vasomotor abnormalities accompany glucose metabolism impairment and that vascular function deteriorates with increasing severity of insulin-resistance and glucose intolerance. Summary - The existing evidence suggests that many modern imaging modalities may be utilised to monitor the effectiveness of medical therapy for diabetes on the CV system. Indeed, almost all surrogate markers of atherosclerosis have been studied in diabetic patients and have shown some validity for this purpose. However, many of the reported differences were very small, some were obtained with invasive techniques and many implied exposure to radiation. Finally, very little evidence has so far linked the occurrence of events to the progression of these markers of disease. Hence, future appropriately powered studies should focus on whether reducing plaque progression and restoring vascular vasomotor activity translate into a significant improvement of CV morbidity and mortality in diabetes mellitus. 8.%% Type 2 Diabetes -- Insulin Therapy Initiating Insulin in the Type 2 Diabetes Patient Medscape Diabetes & Endocrinology. 2007; C2007 Medscape 12/28/2007 Introduction - T2DM is a progressive disease, and most patients will eventually need insulin to achieve euglycemia.[normal blood sugar level] Furthermore, data have shown that early and aggressive intervention to lower blood glucose reduces the risk of complications of the disease. However, even with the ever-growing list of new medications available, it can be a daunting task for healthcare providers to decide which treatment regimen is appropriate to manage a particular patient. New guidelines and algorithms can help determine which patients with type 2 diabetes should be started on insulin and when insulin should be initiated. The goals of insulin therapy are the same as the goals of any therapy for the treatment of diabetes: to achieve optimal glycemic control without causing undue hypoglycemia or excessive weight gain and to minimize the impact on lifestyle. The Challenges of Insulin Therapy Psychological insulin resistance is a real phenomenon. Individuals with diabetes often feel that insulin is the beginning of the end. They fear taking the injection and feel that there is a stigma associated with insulin. Insulin therapy can, in fact, be a real pain both literally and figuratively. It is intrusive, can limit spontaneity, and can interfere with daily activities. As a consequence, adhering to an insulin regimen has been difficult for many patients. Because symptom severity is not indicative of disease severity, many individuals do not understand the need for optimal glycemic control or its role in preventing complications. This lack of understanding can also result in significant resistance as well as decreased adherence once patients do agree to begin insulin. That nonadherence will most likely carry over to other parts of diabetes management, such as blood glucose testing. In addition, individuals fear that they will experience hypoglycemia and gain weight. To top it off, there is the inconvenience and the disruption of daily routines and privacy. Providers, on the other hand, also experience psychological resistance to insulin therapy. They also may fear hypoglycemia and have concern for their patients' safety. In patients who already have a weight issue, the risk of gaining weight adds to the complexity of the decision to initiate insulin. All this, combined with the time it takes to educate the patient and titrate the dose, adds up to a lot of work. Teaming up with a diabetes educator who is knowledgeable in diabetes and insulin management can help alleviate this workload. However, even if this resource is not available, simple algorithms and titration schedules make initiation and titration of insulin easier. 9.%% MW -Blood Pressure and Risk of Developing Type 2 Diabetes Mellitus: The Women's Health Study Eur Heart J. 2007;28(23) C2007 Oxford University Press 01/02/2008 Abstract Aims: To examine the relationship of blood pressure (BP) and BP progression with the subsequent development of T2DM. [ prospective cohort study among 38 172 women free of DM and cardiovascular disease at baseline. Women were classified into four categories according to self-reported baseline BP] During 10.2 years of follow-up, 1672 women developed T2. Conclusion - Our study provides strong evidence that baseline BP and BP progression are associated with an increased risk of incident T2. Clinicians should be aware of these relationships to optimize the management of patients at increased risk for cardiovascular disease. 10.%% MW - New PPAR-Gamma Modulator Has Potent Antidiabetes and Antiatherogenic Effects Reuters Health Information 2007. (Reuters Health) Dec 28 - A new specific peroxisome proliferator-activated receptor (PPAR) modulator has demonstrated promise in a French in vitro and in vivo study of mice.The researchers note that the thiazolidinedione (TZD) class of drugs, although effective and widely used to treat T2 tends to cause weight gain. This study was undertaken to evaluate S26948, a novel ligand for PPAR-gamma. The study found that S26948 is a specific high-affinity agonist for PPAR-gamma, binding it with the same affinity as the TZD rosiglitazone does. Further, the results suggest that S26948 promoted a PPAR-gamma conformation distinct from that elicited by rosiglitazone. In addition, [it] decreased blood glucose levels and plasma insulin levels in male ob/ob mice, indicating that the drug increased insulin sensitivity, paralleling the effects of rosiglitazone treatment. Results showed that the agent did not promote body- weight gain in the diabetic mice. Instead, the S26948-treated mice gained less weight than the controls, indicating " a profoundly decreased food efficiency, " the authors write. They concluded that S26948's pattern of coactivator recruitment, which differs from that of rosiglitazone, decreases its adipogenic capacity compared with rosiglitazone. In a cohort of homozygous human apolipoprotein E2 knock-in mice, S26948 reduced atherosclerotic lesion surfaces by 46% compared with controls. Rosiglitazone had no effect on atherosclerotic lesion size. They add that this line of research is ongoing with related compounds that are considered even more promising, not specifically with S26948. Diabetes 2007;56 11.%% MW - Depomed Says FDA Approves 1000 Mg Strength Tablets of Glumetza (Reuters) Jan 02 - Depomed Inc said U.S. health regulators have approved the 1000 mg strength tablets of Glumetza, an extended-release formulation of metformin, for patients with T2. The specialty pharmaceutical company said it acquired exclusive US rights to the 1000 mg formulation of Glumetza in December 2005 Abbreviations: T1DM - type 1 diabetes mellitus T2DM - type 2; ADA - American Diabetes Association; BP - blood pressure; DM - diabetes Mellitus;HTN - hypertension; MW Medscape Web MD; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google. Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities. Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thlvistacenter (DOT) <mailto:thl%40vistacenter.org> org __________ NOD32 2779 (20080109) Information __________ This message was checked by NOD32 antivirus system. http://www.eset. <http://www.eset.com> com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 12, 2008 Report Share Posted January 12, 2008 I only had hypoglycemia a couple of times since being diagnosed with type 2. As soon as I was out of the hospital the first time and my first foot ulcers healed, I started exercising by riding a stationary bike and sometimes using the Sansone " walk away the pounds " videos. Not long after losing some weight I started having hypoglecemic incidents. I started cutting my dosages of diabetes meds in half and eventually stopped taking them altogether. I was able to keep the weight I had lost off and no longer needed the meds for about a year. Then, I did something stupid. I got lazy again and stopped exercising and put some of the weight back on. I didn't go back to the doctor right away to get more prescriptions because I thought I could handle things myself. Then, of course, I started getting foot ulcers again and ended up back in the hospital. My problem now is that even with keeping my BS under better control, I still get foot ulcers and now have this Charcot condition to worry about. But basically, yes you can get hypoglecemia as a type 2 diabetic. Becky _____ From: blind-diabetics [mailto:blind-diabetics ] On Behalf Of LaFrance-Wolf Sent: Friday, January 11, 2008 11:10 AM To: blind-diabetics Subject: RE: articles Vicky, Type 2 diabetecs can become hypoglycemic if they are on meds that make their pancreas produce insulin. Perhaps some type 2 diabetics on the list can tell their experiences with this? Re: articles interesting, patricia. So let me ask something: is hypoglycemia present in type 2 diabetics and if so, is there a certain way you know you have it? Vicki The LORD is good to those who depend on him, to those who search for him. Lamentations 3:25, NLT articles 1. ADA - Depression May Lead to Type 2 Diabetes Jan-2-2008 Researchers believe there is a link between chronic depression and the development of T2DM in adults age 65 years and up. Using responses from over 4,600 people without diabetes at the outset to the National Institutes of Health's Center for Epidemiological Studies Depression Scale, the researchers saw a 50% greater chance of developing DM during the course of the 10-year study among those noting high depressive symptoms--even after accounting for weight and activity levels. They state that depression has dramatic impacts on the autonomic nervous system, moving from a resting state to a responsive state under stress; insulin production is shut down to handle potential threats when the body is in the responsive state. Similar research by Washington University School of Medicine determined that when adults have both depression and T2, 90% of those experienced depression first. News summaries C2007 Information, Inc. Chicago Tribune (12/25/07) 2.%% MW - Habituation of Brain Responses Tied to Unawareness of Hypoglycemia (Reuters Health) Dec 31 - Attenuation of amygdala and frontal cortical responses to low blood glucose concentration may lead to a lack of hypoglycemia awareness in patients with T1DM. The lead researcher told Reuters Health that the studies are early However, she said, " We think they may have important implications for people with T1 who have lost their ability to recognize early hypoglycemia ... and are therefore at high risk for more severe hypoglycemia with confusion and even coma. " The team used FDG-labeled positron emission tomography to examine responses to euglycemia and hypoglycemia in 6 patients with hypoglycemia awareness and 7 without such awareness. FDG uptake was increased in the left amygdala in hypoglycemia awareness, but not in hypoglycemia unawareness. The team also found a " robust increase " bilaterally in the ventral striatum during hypoglycemia unawareness. Further analysis indicated bilateral attenuated activation of brain stem regions and less deactivation in lateral orbitofrontal cortex in hypoglycemia unawareness. " The data suggest, that this group of people, perhaps 25% of people who have had their DM for more than 15 years, have an altered brain response to a hypoglycemic episode in which they not only fail to feel that they are hypoglycemic, but they also fail to generate the brain message that the hypoglycemia is unpleasant and dangerous. " In fact, " the message generated may even be faintly rewarding, which would actually encourage experience of further hypoglycemia, " she added. " If this interpretation is correct, we will need to use additional strategies, such as those currently successful in changing other patterns of repeated behavior that are damaging -- for example, smoking and drinking alcohol -- to help people avoid hypoglycemia long-term, and recover their awareness of those occasional episodes that are inevitably part of today's insulin therapies. " Diabetes 2007;56. 3.%% MW-Sirolimus Stents May Reduce Restenosis in Diabetics With Coronary Disease (Reuters Health) Jan 04 - Compared with paclitaxel-eluting stents (PES), sirolimus-eluting stents (SES) appear to decrease the risk of in-stent late luminal loss in diabetics with coronary artery disease, new research shows. Comparing PES with SES has been difficult since there are so many individual variables that contribute to neointimal hyperplasia. In the present study, the researchers addressed this problem by comparing PES and SES directly in the same diabetic patient. [60 patients - 60 lesions were successfully treated with PES and 60 with SES] On multivariate analysis, the type of drug-eluting stent was the only independent predictor of in-stent late luminal loss. Specifically, in-stent late luminal loss [loss of the open area in vessel] was 2.3-times more likely when a PES rather than a SES was used. Further research is needed to determine if the better angiographic results achieved with SES actually translate into long-term clinical benefits, the authors conclude. Diabetes Care 2008;31. 4.%% MW - Retinopathy Linked to Subclinical Coronary Artery Disease Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 03 - Retinal microvascular changes are associated with increased coronary artery calcification (CAC), an indicator of subclinical coronary macrovascular disease, findings from the prospective Multi-Ethnic Study of Atherosclerosis (MESA) suggest. [6,000 subjects age 45 -84 years without a history of clinical cardiovascular disease. They underwent chest computed tomography to measure coronary artery calcification and fundus photography to assess retinal disease. Retinopathy was defined as the presence of microaneurysms, hemorrhages, cotton wool spots, intraretinal microvascular abnormalities, hard exudates, venous beading or new vessels. CAC was present in about half of the subjects. Retinopathy was present in 14.3% of subjects with no CAC, 17.2% of subjects with mild CAC, and 20.8% of those with moderate to severe CAC. " The association between retinopathy and moderate-to-severe CAC was present in all ethnic groups and remained significant in both men and women and in persons with and without diabetes or hypertension, " the investigators found. They conclude that " common pathophysiologic processes may underlie both microvascular and macrovascular disease. " Specifically, they suggest that " retinopathy signs ...reflect generalized endothelial dysfunction, which in the coronary circulation may promote atherogenesis. " " Inflammatory factors may also be involved " when patients without hypertension or diabetes, and with generally low cardiovascular risk profiles, present with retinopathy and coronary artery calcification, h. " As yet, there are no direct clinical implications from our study, " the ophthalmologist researcher said, " but physicians and patients should be aware that these conditions are related. . patients with retinopathy may be at higher risk of both subclinical heart disease and clinical heart disease, such as heart failure. " On the other hand, retinopathy is reversible..Reversal may occur in 3 years and is associated with lower BP and glucose levels, higher physical activity, and less obesity, " he said. " It is possible, but not proven, that reversal is associated with lower risk of cardiovascular disease. " the team is now evaluating the value of adding a retinal examination to a coronary calcium CT scan for predicting cardiovascular disease. Am J Epidemiol 2008;167: 5.%% MW - Alpha-Linolenic Acid May Lower Risk of Diabetic Peripheral Neuropathy Reuters Health Information 2008. C 2008 Reuters Ltd. Jan 07 - Dietary intake of alpha-linolenic acid was associated with reduced incidence of diabetic peripheral neuropathy in a new analysis of data from the National Health and Nutrition Examination Survey (NHANES) 1999-2004. Alpha-linolenic acid is an omega-3 fatty acid found in many vegetable oils, including flaxseed, walnuts, and canola oil. The researchers identified 1062 diabetics age 40 and older for whom complete 24-hour dietary recall data were recorded. Peripheral neuropathy had been assessed using a nylon monofilament at three plantar sites on each foot to test for sensation. Dr. Eberhardt's group calculated the intake of total polyunsaturated fatty acids and of seven specific fatty acids. In multivariate analyses, they adjusted for age, sex, race, education, height, weight, diabetes duration, glycemic control, hypertension, smoking, and total calorie intake. Relative to adults in the lowest quintile [fifth] of alpha-linolenic acid intake the odds of having peripheral neuropathy was 0.54 for subjects in the fourth quintile (1.35 - 2.10 g/day) of intake and 0.40 for adults in the fifth quintile (2.11 g/day or higher). High dietary intake of alpha-linolenic acid is associated with reduced risk of vascular disease (coronary heart disease and hypertension), the team points out. " The protective effect of alpha-linolenic acid on macrovascular diseases and its association with diabetic peripheral neuropathy may be due to a similar biological mechanism. " They recommend further study to verify a protective effect of alpha-linolenic acid in patients with diabetes. Diabetes Care 2008;31. 6.%% MW-Fitness, Fatness, and Cardiovascular Risk Factors in Type 2 Diabetes: Look AHEAD Study Med Sci Sports Exerc. 2007;39(12) C2007 American College of Sports Medicine 01/03/2008 Purpose: Most studies comparing the effects of fitness and fatness on cardiovascular (CVD) risk have been done with young, healthy participants with low rates of obesity and high levels of fitness. The present study examined the association of cardiorespiratory fitness and obesity with CVD risk factors in an ethnically diverse sample of overweight/obese individuals with T2DM. [ Baseline data from Look AHEAD, 5145 overweight or obese individuals with T2]..Among the CVD risk factors, we examined continuous outcomes such as HbA1c, HDL, LDL, triglycerides, SBP, diastolic blood pressure (DBP), ABI, and 1-yr CVD risk estimate using the Framingham risk prediction equation. . At entry into the study, participants averaged 58.7 and had a DM duration of 6.8. 60% were women; 63.2% were white, 15.7% were African American, 13.2% Hispanic, 5.0% Native American, and 1.0% Asian American. In conclusion, this study shows that fitness and fatness are highly associated; thus, it is unusual to find individuals who are obese, yet very fit. Moreover, both fitness and fatness are related to CVD risk factors, although the strength of the associations for fitness versus fatness differed for specific risk factors. Of particular note is the strong association of fitness with HbA1c, ABI, and Framingham risk score in this population, and the relationships of BMI with SBP. Look AHEAD is an ongoing trial; it is expected to last through the year 2012. Half of the participants are receiving intensive lifestyle intervention, and half receive diabetes education and support. Changes in weight, fitness, and CVD risk factors are measured periodically throughout the study; the primary outcome measure is CVD morbidity and mortality. 7.%% MW - Imaging to Assess Effect of Medical Therapy in Patients With Diabetes Mellitus Br J Diabetes Vasc Dis. 2007;7(4): 01/02/2008 Abstract - The incidence of T2DM is rapidly increasing throughout the world. As an independent risk factor for cardiovascular disease both at the microvascular and macrovascular level, DM is a condition that deserves the most aggressive medical management... invasive techniques have been extensively used to assess coronary atherosclerosis progression and drug efficacy in the general population and smaller subsets of DM patients. While even minimal luminal stenosis reduction was associated with very significant reduction in event rates in the general population, similar data are lacking in DM patients. Although sensitive, an obvious limitation of these techniques is their invasive nature and the radiation exposure, besides a very considerable operational cost. Hence, additional non-invasive imaging techniques have been adopted to assess plaque progression or its haemodynamic effects in diabetic patients. Carotid Intima Media Thickness - Two decades ago investigators showed that the thickness of the carotid wall (intima and media layer taken together) measured ultrasonographically was associated with the presence and extent of atherosclerosis of the aorta..several randomised and epidemiological studies clearly proved the value of the cIMT as a marker of CV risk. An increased cIMT has been associated with risk of MI and CVA in the elderly (> 65 years) as well as younger age groups. cIMT is a marker of atherosclerosis burden rather than a surrogate for obstructive CAD. Insulin resistance alone in the absence of clinical diabetes has been associated with an increased cIMT.. Furthermore, cIMT appears to progress faster in diabetic patients than in all other patients. Medical Interventions -Measurement of cIMT progression has been utilised to assess efficacy of medical therapy in several studies in DM patients. A short- and a long-term follow-up study of 1,229 T1DM patients randomised to either standard or intensive glucose-reducing therapy, compared cIMT progression in diabetes with that of age and sex-matched non-diabetic individuals...cIMT progression was not different at the end of the first year of follow-up between controls and patients receiving intensive and standard therapy, but it was significantly greater in the diabetic than control subjects at the end of 6.5 years of follow-up. Coronary Artery Calcium - Coronary artery calcium is deposited in the atherosclerotic milieu as the plaque develops via active mechanisms resembling bone formation. . it has been shown that there is an excellent correlation(r=0.98) between CAC measured on CCT and atherosclerotic plaque area. Whether CAC imaging adds prognostic information in diabetes mellitus remains unclear. Hypertension and several nontraditional CV risk factors have been associated with CAC progression in DM subjects. .. Additionally, a greater proportion of DM than non-diabetic patients developed CAC during follow-up if no CAC was present at baseline (42% vs. 25%. Finally, as reported in the general population, CAC progression was linked with adverse coronary events during follow-up. .DM patients who suffered a MI during follow-up demonstrated a 4-fold and 2.5-fold greater CAC progression than non-diabetic subjects receiving and not receiving statins, respectively. CAC imaging appears to be a reliable means to assess risk connected with subclinical atherosclerosis in the general population, although some debate remains in diabetic patients. Functional Imaging - Various forms of nuclear myocardial perfusion imaging have been utilised in DM patients to assess the effect of glycaemic metabolism on vascular function. Indeed, data suggest that coronary vasomotor abnormalities accompany glucose metabolism impairment and that vascular function deteriorates with increasing severity of insulin-resistance and glucose intolerance. Summary - The existing evidence suggests that many modern imaging modalities may be utilised to monitor the effectiveness of medical therapy for diabetes on the CV system. Indeed, almost all surrogate markers of atherosclerosis have been studied in diabetic patients and have shown some validity for this purpose. However, many of the reported differences were very small, some were obtained with invasive techniques and many implied exposure to radiation. Finally, very little evidence has so far linked the occurrence of events to the progression of these markers of disease. Hence, future appropriately powered studies should focus on whether reducing plaque progression and restoring vascular vasomotor activity translate into a significant improvement of CV morbidity and mortality in diabetes mellitus. 8.%% Type 2 Diabetes -- Insulin Therapy Initiating Insulin in the Type 2 Diabetes Patient Medscape Diabetes & Endocrinology. 2007; C2007 Medscape 12/28/2007 Introduction - T2DM is a progressive disease, and most patients will eventually need insulin to achieve euglycemia.[normal blood sugar level] Furthermore, data have shown that early and aggressive intervention to lower blood glucose reduces the risk of complications of the disease. However, even with the ever-growing list of new medications available, it can be a daunting task for healthcare providers to decide which treatment regimen is appropriate to manage a particular patient. New guidelines and algorithms can help determine which patients with type 2 diabetes should be started on insulin and when insulin should be initiated. The goals of insulin therapy are the same as the goals of any therapy for the treatment of diabetes: to achieve optimal glycemic control without causing undue hypoglycemia or excessive weight gain and to minimize the impact on lifestyle. The Challenges of Insulin Therapy Psychological insulin resistance is a real phenomenon. Individuals with diabetes often feel that insulin is the beginning of the end. They fear taking the injection and feel that there is a stigma associated with insulin. Insulin therapy can, in fact, be a real pain both literally and figuratively. It is intrusive, can limit spontaneity, and can interfere with daily activities. As a consequence, adhering to an insulin regimen has been difficult for many patients. Because symptom severity is not indicative of disease severity, many individuals do not understand the need for optimal glycemic control or its role in preventing complications. This lack of understanding can also result in significant resistance as well as decreased adherence once patients do agree to begin insulin. That nonadherence will most likely carry over to other parts of diabetes management, such as blood glucose testing. In addition, individuals fear that they will experience hypoglycemia and gain weight. To top it off, there is the inconvenience and the disruption of daily routines and privacy. Providers, on the other hand, also experience psychological resistance to insulin therapy. They also may fear hypoglycemia and have concern for their patients' safety. In patients who already have a weight issue, the risk of gaining weight adds to the complexity of the decision to initiate insulin. All this, combined with the time it takes to educate the patient and titrate the dose, adds up to a lot of work. Teaming up with a diabetes educator who is knowledgeable in diabetes and insulin management can help alleviate this workload. However, even if this resource is not available, simple algorithms and titration schedules make initiation and titration of insulin easier. 9.%% MW -Blood Pressure and Risk of Developing Type 2 Diabetes Mellitus: The Women's Health Study Eur Heart J. 2007;28(23) C2007 Oxford University Press 01/02/2008 Abstract Aims: To examine the relationship of blood pressure (BP) and BP progression with the subsequent development of T2DM. [ prospective cohort study among 38 172 women free of DM and cardiovascular disease at baseline. Women were classified into four categories according to self-reported baseline BP] During 10.2 years of follow-up, 1672 women developed T2. Conclusion - Our study provides strong evidence that baseline BP and BP progression are associated with an increased risk of incident T2. Clinicians should be aware of these relationships to optimize the management of patients at increased risk for cardiovascular disease. 10.%% MW - New PPAR-Gamma Modulator Has Potent Antidiabetes and Antiatherogenic Effects Reuters Health Information 2007. (Reuters Health) Dec 28 - A new specific peroxisome proliferator-activated receptor (PPAR) modulator has demonstrated promise in a French in vitro and in vivo study of mice.The researchers note that the thiazolidinedione (TZD) class of drugs, although effective and widely used to treat T2 tends to cause weight gain. This study was undertaken to evaluate S26948, a novel ligand for PPAR-gamma. The study found that S26948 is a specific high-affinity agonist for PPAR-gamma, binding it with the same affinity as the TZD rosiglitazone does. Further, the results suggest that S26948 promoted a PPAR-gamma conformation distinct from that elicited by rosiglitazone. In addition, [it] decreased blood glucose levels and plasma insulin levels in male ob/ob mice, indicating that the drug increased insulin sensitivity, paralleling the effects of rosiglitazone treatment. Results showed that the agent did not promote body- weight gain in the diabetic mice. Instead, the S26948-treated mice gained less weight than the controls, indicating " a profoundly decreased food efficiency, " the authors write. They concluded that S26948's pattern of coactivator recruitment, which differs from that of rosiglitazone, decreases its adipogenic capacity compared with rosiglitazone. In a cohort of homozygous human apolipoprotein E2 knock-in mice, S26948 reduced atherosclerotic lesion surfaces by 46% compared with controls. Rosiglitazone had no effect on atherosclerotic lesion size. They add that this line of research is ongoing with related compounds that are considered even more promising, not specifically with S26948. Diabetes 2007;56 11.%% MW - Depomed Says FDA Approves 1000 Mg Strength Tablets of Glumetza (Reuters) Jan 02 - Depomed Inc said U.S. health regulators have approved the 1000 mg strength tablets of Glumetza, an extended-release formulation of metformin, for patients with T2. The specialty pharmaceutical company said it acquired exclusive US rights to the 1000 mg formulation of Glumetza in December 2005 Abbreviations: T1DM - type 1 diabetes mellitus T2DM - type 2; ADA - American Diabetes Association; BP - blood pressure; DM - diabetes Mellitus;HTN - hypertension; MW Medscape Web MD; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. Definitions - Dorlands 31st Ed and Google. Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities. Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thlvistacenter (DOT) <mailto:thl%40vistacenter.org> org __________ NOD32 2779 (20080109) Information __________ This message was checked by NOD32 antivirus system. http://www.eset. <http://www.eset. <http://www.eset.com> com> com Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 12, 2008 Report Share Posted January 12, 2008 I had an interesting experience during my last hospital stay. For some reason, instead of letting me take my oral meds, the nurses preferred giving me insulin injections. It particularly bugged me when they would give me an injection about 9:00 at night. The first night they did this, I woke up in the middle of the night and had to go to the bathroom. Anyone who has been in a hospital knows how tiny the bathrooms are. I got in there and then became confused and couldn't find the door or figure out how to get out. It dawned on me that not only was I confused, but I was feeling shaky and was perspiring. I knew my BS was too low. Before I pulled the emergency string in the bathroom, I remembered that the door was sliding and not a push/pull door so managed to get out. As soon as I got back to bed I pushed the button to summons a nurse. I asked for a snack, and soon felt better. From that night on, I made sure they brought me a snack, and as soon as I got the injection of insulin (it did no good to argue with them and tell them not to give me one) I would eat a few gram crackers and would make it through the night without any problems. Becky _____ From: blind-diabetics [mailto:blind-diabetics ] On Behalf Of Jesso Sent: Friday, January 11, 2008 12:25 PM To: blind-diabetics Subject: Re: articles From what I understand type 2s on medication can have lows, but they tend to not be as severe as in those with type 1. Even type 2s on insulin seem to have less of a problem with sudden, severe lows from what I have read, for some reason. I could be wrong on this so I'd be interested to hear what those with type 2 on the list have to say. You would know you are experiencing lows if you have symptoms of hypoglycemia (shakiness, sweatiness, dizziness, hunger, headache, concentration and coordination difficulties, in severe cases loss of consciousness and seizures) and if your blood sugar tested low at this time. I always test when I feel low because sometimes I'm actually high, so never just assume you are low and treat unless it is an emergency. Jen Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 28, 2008 Report Share Posted February 28, 2008 1.NIHPRESS Digest-15 Feb 2008 to19 Feb 2008 (#2008-21) Stress Hormone Impacts Memory, Learning in Diabetic Rodents - Diabetes is known to impair the cognitive health of people, but now scientists have identified one potential mechanism underlying these learning and memory problems. A new National Institute on Aging (NIA) study in diabetic, T1 & T2 rodents finds that increased levels of a stress hormone produced by the adrenal gland disrupt the healthy functioning of the hippocampus, the region of the brain responsible for learning and short-term memory. Moreover, when levels of the adrenal glucocorticoid hormone corticosterone (also known as cortisol in humans) are returned to normal, the hippocampus recovers its ability to build new cells and regains the " plasticity " needed to compensate for injury and disease and adjust to change. " This research in animal models is intriguing, suggesting the possibility of novel approaches in preventing and treating cognitive impairment by maintaining normal levels of glucocorticoid, " said the NIA director. " Further study will provide a better understanding of the often complex interplay between the nervous system, hormones and cognitive health. " Cortisol production is controlled by the hypothalamic - pituitary axis (HPA), a hormone-producing system involving the hypothalamus and pituitary gland in the brain and the adrenal gland located near the kidney. People with poorly controlled DM often have an overactive HPA axis and excessive cortisol produced by the adrenal gland. " This advance in our understanding of the physiological changes caused by excessive production of cortisol may eventually play a role in preventing and treating cognitive decline in diabetes,.. these findings may also help explain the connection between stress-related mood disorders and diabetes found in human population studies. 2.%% MW -Human Embryonic Stem Cells Generate Insulin-Secreting Cells in Vivo Reuters Health Information 2008. © 2008 Reuters Ltd. Feb 20 - The findings of a new study, according to the researchers, provide " definitive evidence " that human embryonic stem cells can be used to create glucose-responsive, insulin-secreting cells. " Development of a cell therapy for diabetes would be greatly aided by a renewable supply of human beta-cells, " The team from Novocell Inc. in San Diego, comment. They show that pancreatic endoderm, derived from human embryonic stems cells, can generate endocrine cells that are " morphologically and functionally similar " to beta-cells after being implanted into mice. In addition, the team goes on to show that implantation of the stem cell-derived endoderm protects against streptozotocin-induced hyperglycemia. These findings suggest that human embryonic stem cells could, in fact, represent a renewable supply of islet-like cells for treating diabetes, the researchers conclude. Nat Biotechnol 2008. Feb 20th online issue 3.%% 21 Feb 2008 s Hopkins Health Alerts - Diabetes Using a Continuous Glucose Monitor - Self-testing of blood glucose with a blood glucose meter is the backbone of DM management. Results from the Diabetes Control and Complications Trial (DCCT) indicate that people with DM should be more aggressive in their daily monitoring of blood glucose levels if they want to reduce their risk of diabetes complications. This means not only more frequent blood glucose testing but also adjusting your diet, exercise, and doses of insulin or oral medications according to the results of your tests. Frequent blood testing takes time and requires lots of finger pricks. But what if you could test your glucose 288 times a day without turning into a human pincushion? You might be able to with a continuous glucose monitor, according to a recent study of people with diabetes who used insulin. A continuous glucose monitor consists of a small sensor wire inserted beneath the skin of the abdomen and held in place with an adhesive patch. Every five minutes, the sensor measures blood glucose and transmits the information to a pager-sized receiver with a digital readout that attaches to your clothing. In the study, 91 people wore a continuous glucose monitor. Half of them saw their blood glucose levels displayed on the readout, were informed if their blood glucose levels were too high or too low, and heard an alarm when their blood glucose fell below 55 mg/dL. The remaining participants did not see their glucose levels on the readout or receive any warnings. Over a 3-day period, volunteers who received feedback on their blood glucose levels spent 26% more time with their glucose under control and 23% less time with their glucose at hypoglycemia levels than those who didn’t receive the feedback. Diabetes Care Vol 29, . 4.%% ADA -Increased Arterial Stiffness in Normoglycemic Normotensive [normal blood sugar and normal BP] Offspring of Type 2 (Diabetes) Parents 2/20/08 Although there is a correlation between the occurrence of reduced arterial distensibility and DM, there is scant research on this association. To determine the development of arterial distensibility in offspring of parents with T2DM, 55 individuals were evaluated according to BP, blood glucose, glycohemoglobin, and insulin sensitivity. Subjects' carotid diastolic diameter, measured by echo tracking, exhibited similar carotid diameters at diastole and statistically significant reduced increases of carotid diameter at systole; reduced carotid artery distensibility; and an increased pulse pressure. The team concluded that in patients with a predisposition to DM, carotid artery stiffening is a potential condition that can occur in the absence of blood pressure alterations. Hypertension 2/08# 51 5.%% ADA -New data on the role of the accumulation of cardiovascular risk factors in the development of endothelial dysfunction in type 2 diabetes Feb-18-2008 The effects of the accumulation of cardiovascular risk factors and insulin resistance on endothelial function in diabetic patients [101] and 9 controls was evaluated ..As compared to controls and DM patients, patients with diabetes and 3 other cardiovascular risk factors (i.e., dyslipidemia, obesity. hypertension) showed lower vasodilation values [FMD]. In addition, insulin resistance and high blood pressure significantly correlated with impaired FMD, thus suggesting a relevant role in the pathogenesis of endothelial dysfunction J Atheroscler Thromb 2007, 14(6) 6.%%ADA -Insulin glargine plus glimepiride reported safe and effective in type 2 diabetes 2/18/08 The safety and efficacy of combined insulin glargine and glimepiride was evaluated, for the first time, in a multicenter, open-label trial enrolling a total of 100 ethnic Japanese men and women with inadequately controlled T2DM on oral antidiabetic drugs;24weeks of morning glimepiride (3 mg) plus bedtime insulin glargine was well-tolerated and effective in reducing mean HbA1c (1.5%), fasting plasma glucose (88.3 mg/dl), and postprandial plasma glucose (112.0 mg/dl), These findings indicate that insulin glargine plus glimepiride could be used in patients with T2 and poor glycemic control Diabetes Res Clin Practice 2008, 79(1): 7.%%ADA - ADT increases the incidence of diabetes in patients with prostate cancer 2-14-2008 A retrospective study using data from 8,481 individuals determined the association between androgen- deprivation therapy (ADT) and the incidence of DM in patients with prostate cancer. Multivariate analysis revealed that age, demographic characteristics, comorbidities and use of statins played a significant role in increasing the relative risk of DM among these patients. Within 12 months, patients receiving ADT showed a 1.36 higher relative risk of developing DM when compared to patients not treated with ADT. The authors conclude that ADT is associated with an increase in metabolic syndrome and diabetes in patients with prostate cancer . Urology 2007, 70(6):1104). 8.%% Resting Heart Rate May Be Tied to Diabetes Mortality (Reuters Health) Feb 22 - A higher resting heart rate in middle age is among factors associated with diabetes claims and mortality from DM in older age, researchers report. " Heart rate, " as lead researcher Dr. M. Carnethon told Reuters Health, " is a simple-to-measure clinical tool that provides potentially useful information about an individual's metabolic health. " Her team note that given the apparent association between heart rate and life expectancy, they sought to determine whether heart rate might also have a connection with DM and mortality from the disease. [15,000 people;35-64years old; free of DM. After adjusting for demographics and factors such as smoking, the odds of having a DM-related claim was about 10% higher for each 12 BPM increase in baseline resting heart rate. In subjects aged 35 to 49 at baseline, however, a higher heart rate was associated with an increased risk of diabetes mortality even after adjustment for BMI. They conclude, " Our findings provide further evidence that higher heart rate is associated with adverse morbidity and mortality from a number of causes including DM. " Diabetes Care 2008;31. 9.%% MW- (Reuters Health) Feb 15 - A drug approved for the treatment of arthritis may have a role in reducing diabetic and cardiovascular risk in young obese individuals, Harvard researchers report. The anti-inflammatory drug salsalate reduced fasting glucose, C-peptide levels and C-reactive protein levels in a placebo-controlled trial.[20 non-DM adults;younger than 30 years;(BMI)at least 30; 4 wk Compared with placebo, salsalate significantly reduced fasting glucose by 13%, glycemic response after an oral glucose challenge by 20%, glycated albumin by 17% and circulating levels of C-reactive protein by 34%. In addition, salsalate decreased fasting and oral glucose tolerance test C-peptide levels, improved insulin sensitivity and inhibited insulin clearance, and increased adiponectin levels by 57% compared with placebo. Insulin levels were unchanged. " This proof-of-principle study demonstrates that salsalate reduces glycemia and may improve inflammatory cardiovascular risk indexes in overweight individuals, " .. " These data support the hypothesis that subacute- chronic inflammation contributes to the pathogenesis of obesity- related dysglycemia [abnormal blood sugar] and that targeting inflammation may provide a therapeutic route for DM prevention. " " Salsalate is marketed in the US for the treatment of arthritic pain. It is not approved for use in obesity, " " We are conducting additional clinical research studies to evaluate targeting inflammation using salsalate in patients with DM to determine safety and efficacy to reduce blood sugars. A second ongoing study is in patients with impaired glucose tolerance, also at high risk for development of T2. " Diabetes Care 2008;31 10.%% Nature Clinical Practice Endocrinology & Metabolism (2008) 4, Increased liver fat content in patients with type 2 diabetes is independent of obesity no abstract so we have provided the first paragraph. Many patients with T2DM have increased liver fat content, giving a high prevalence of nonalcoholic fatty liver disease; whether this increase is independent of obesity has not been confirmed. Kotronen and colleagues assessed liver fat content in patients with T2 compared with that in nondiabetic individuals matched for age, sex and BMI. Since a simple measure of liver fat content in patients with T2 would also be useful for directing therapy, the authors also measured glycemic markers, lipids, and liver enzyme concentrations in serum. [Full text 1. Personal subscription2. 7 day single article pass for US$18 © 2008 Nature Publishing Group 11.%% Nature Clinical Practice Endocrinology & Metabolism (2008) 4, Serum uric acid levels predict mortality in patients with type 2 diabetes The team using the(Preventive Cardiology Information System) database, performed a retrospective cohort analysis of 535 consecutive patients with T2DM to examine the association of serum uric acid levels with all-cause mortality and glycemic control. [Full text see #10] 12.%%Nature Clinical Practice Endocrinology & Metabolism (2008) 4, Does treatment with 17alpha-hydroxyprogesterone caproate increase the risk of gestational diabetes mellitus? Preterm birth is a leading cause of perinatal mortality and morbidity, is responsible for 75% of all neonatal deaths, and remains an expensive health-care problem. Although preterm labor can be caused by infection or weakness of the cervix, the etiology in most cases remains unexplained. As the onset of labor is associated with a physiological withdrawal of progesterone, it is thought that administration of pharmacological doses of progesterone might prevent initiation of the pathway leading to labor. In addition, progesterone is an anti-inflammatory agent. The results of two studies suggest that progesterone reduces the incidence of preterm delivery. additional evidence is needed before this therapy becomes widely adopted. [Full text-see #10] 13.%% Amer Journ Ophthalmology Volume 145,Issue 3 (March 2008) Serum and Tear Levels of Nerve Growth Factor in Diabetic Retinopathy Patients Purpose- To measure serum and tear nerve growth factor (NGF) concentrations in diabetic retinopathy (DR) patients to determine whether the NGF correlated with parameters associated with DR. [254 DR patients and 71 nondiabetic controls; nt demographic characteristics and DM parameters, including blood sugar levels, HbA1c, liver and renal function, evaluated. Serum and tear NGF concentrations and the ratio of NGF to total protein (TP) in serum and tear fluid were determined. Results- Serum and tear NGF levels were found to be higher in proliferative diabetic retinopathy (PDR) patients than in nondiabetic controls and nonproliferative diabetic retinopathy (NPDR) patients. Similarly, NGF levels were higher in PDR patients than in controls and NPDR patients after adjusting for possible confounding factors such as age, gender, serum blood urea nitrogen, creatinine, and diabetic parameters. In addition, the NGF-to-TP ratio for both serum and tear fluid was higher in the PDR group compared with the control and NPDR groups. NGF levels correlated well with diabetes duration, HbA1c, and blood sugar levels and diabetic nephropathy. Conclusions NGF concentration may be a good parameter for evaluating DR status. In addition, serum and tear NGF concentrations correlated strongly, indicating that tear fluid assays may offer an effective, accurate, and noninvasive option for NGF measurement. The content on this site is intended for health professionals. 14.%% MW - Vitamin E May Help Limit Cardiac Events in Some Diabetics (Reuters Health) Feb 22 - Vit E supplementation reduces cardiovascular events in middle-aged patients with T2DM and the haptoglobin (Hp) 2-2 genotype, Israeli researchers report. They note that Hp is a determinant of cardiovascular events in patients with DM. The common alleles are Hp 1 and Hp 2.The Hp2 allele protein product, provides inferior antioxidant protection. They say 2-3% of the general population are diabetics who carry the Hp 2-2 genotype. [a randomized trial in 1,434 such individuals aged 55 +] Subjects received vitamin E, 400 U per day, or placebo. At 18 months, 2.2% of vit-E treated patients had experienced the composite endpoint of MI, stroke and cardiovascular death, compared to 4.7% of subjects in the placebo group. This finding led to early termination of the study, the authors report. In comments to Reuters Health, Dr. Levy lead author stressed, " It is critically important that this study be repeated before any treatment recommendations can be made. " If their findings are confirmed, he concluded, " Hp genotyping to determine if you should get vitamin E could become part of the routine management of the individual with diabetes. " Arterioscler Thromb Vasc Biol 2008;28. 15.%% NY Times Feb 26, 2008 Screening: Dialysis Can Lower Blood Sugar Readings A common test to see how well diabetics control blood-sugar levels tends to give misleadingly good news when the patients are on hemodialysis, researchers say... MW - Glycated Albumin Test Needed to Assess Glucose in Hemodialysis Patients (Reuters Health) Feb 20 - New research indicates that a glycated albumin assay is more accurate than standard HbA1c testing in assessing glycemic control in diabetic hemodialysis patients. " These results suggest that the nearly 200,000 diabetic hemodialysis patients in the US who use (HbA1c) may not be receiving optimal care for their blood sugar, " senior author said in a statement. Glycated albumin testing was hypothesized to be more accurate than HbA1c in assessing glycemic control because it does not rely on red blood cell survival, which is typically reduced in hemodialysis patients. The team performed HbA1c and glycated albumin testing on blood samples obtained from 307 Caucasian and African-American diabetics, including 258 who were on hemodialysis for end-stage renal disease. The findings indicated that HbA1c testing underestimated glycemic control compared with glycated albumin testing. Moreover, HbA1c was influenced by the hemoglobin concentration and by the erythropoietin dose, whereas glycated albumin was not. " This study supports the glycated albumin test as a more accurate measure of long-term blood sugar control among diabetic patients who are on hemodialysis, " he said. The study confirms a report by Japanese investigators and is the " first to demonstrate the inaccuracy of the HbA1c in black and white dialysis patients. " The glycated albumin test is not available in the US yet08. February 20th issue of Kidney International 16.%%MNTD - Link Found Between Excessive Nutrient Levels And Insulin Resistance 22 Feb 2008 For quite some time now, scientists suspected the so-called hexosamine pathway -a small side business of the main sugar processing enterprise inside a cell - to be involved in the development of insulin resistance. But they could never quite put their finger on the underlying mechanism. Now, researchers at the Salk Institute for Biological Studies have uncovered the long- missing molecular link: the enzyme OGT (short for O-linked ß-– acetylglucosamine transferase), the last in a line of enzymes that shuttle sugars through the hexosamine pathway. Their study revealed that OGT slams the brake on insulin signaling soon after insulin fires up the machinery that pulls glucose from the blood stream and squirrels it away inside liver or stashes the surplus energy in fatpads. " For the first time we have a real understanding of how the insulin signaling system is turned on and off, " says the lead researcher. He hopes that " this could lead to a new class of insulin-sensitizing drugs that loosen the brake and let insulin work a little bit longer. " When insulin binds its receptor on the cell surface it sets off a cascade of intracellular signals resulting in the production of PIP3, a specialized lipid molecule that masterminds a whole army of molecules that work together to synthesize and store carbohydrates, lipids and proteins. " But turning on a physiological process is only half the story. You also need instructions that tell the cell to get off the accelerator and put on the brake. " ..Since the amount of O-GlcNAc is directly tied to availability of glucose, lipids and other nutrients in the bloodstream the team believes that the hexosamine pathway acts as fuel gauge, protecting the body's cells against the toxic effects of too much glucose and other high-energy molecules. Excessive quantities of nutrients - the result of a lifestyle where food is plentiful and exercise is optional - drive O-GlcNAc levels up, which in turn dampen the insulin response, paving the way for a relentless progression of insulin resistance. .Most people with insulin resistance go on to develop T2DM within 10 years. adapted by Medical News Today from original press release. 17.%% MND - Hypoglycemia Alert Dogs Offer Assistance To People With Diabetes 20 Feb 2008 Glucose monitors, test strips, and lancets: people with diabetes are all too familiar with the equipment used to test their blood glucose (sugar) levels. Now some people are adding a different kind of aid to their diabetes management regimen. The March 2008 issue of Diabetes Forecast, features an article about assistance dogs that are trained to sense episodes of human hypoglycemia, or low blood glucose, and sound a life-saving alert. According to the article, these dogs seem to sense a dangerous drop in blood glucose before it begins, allowing the people they work with to prevent an episode altogether. Some dogs seem to sense high blood glucose, too. Mark Ruefenacht is a forensic scientist with T1DM who started a hypoglycemia alert dog training center in California and has been placing trained dogs with people who need them for 3 years. Scientists remain unsure about how the dogs are able to sense changes in their human companions. It is believed that the dogs are reacting to scents created by chemical changes related to glucose imbalance, but no one knows exactly which chemicals cause the scent. Despite this scientific uncertainty, hypoglycemia alert dogs have provided a great sense of relief to people with DM and their families, including parents of young children with DM and adults whose history of hypoglycemic episodes made it difficult or even dangerous to live alone. Currently, there are only a few groups in the US training assistance dogs to sense hypoglycemia. The training requires years of expensive work, which severely limits the number of people who can be paired with dogs. For those who do get the chance, however, the benefit can be remarkable. " The first time that dog gets you up in the middle of the night because your child is dropping into a serious low, rapidly you realize it's worth every penny you spent, and every minute you had to wait, " says Donna Cope, whose child has diabetes. 18.%% MND - Hispanics Have Higher Levels On Test That Measures Blood Sugar Control, Study Finds 20 Feb 2008 Among those with DM Hispanics had higher levels than non-Hispanic whites on a test that indicates how well patients are controlling their blood sugar [A1C] which measures hemoglobin levels that are linked with glucose; higher A1C values indicate that patients have difficulty controlling their blood sugar. Researchers looked at 11 studies containing results of A1C tests for Hispanics and non-Hispanics 18+ The study also found that " the largest difference for A1C was among [people enrolled in] nonmanaged care insurance groups the lead author said.” We found a similar trend in the African-American population with DM a year ago. " communication issues and a lack of trust in the health system might prevent some Hispanics from adequately controlling their DM. She said that the study could lead to early treatment and awareness of how diabetes affects Hispanics. February issue of Diabetes Care, via Winston Salem Journal 2/16 19.%% MW - Relationship Between Low Birth Weight and Disorders of Glucose Regulation 02/15/2008 Disorders of Glucose Regulation in Adults and Birth Weight: Results From the Australian Diabetes, Obesity and Lifestyle (AusDiab) Study Diabetes Care. 2008;31 [11,000 participants that collected fasting and postchallenge glucose values; 1999-2000. During a 2004-2005 follow-up survey, participants were asked about their birth weight. The population-attributable risk for low birth weight for DM was 13.5% in women and 4.8% in men. Viewpoint - Low birth weight has previously been associated with increased risk for T2DM but no population-based studies have reported an association until now. It has been hypothesized that inadequate nutrition during gestation results in later-life resistance to insulin-stimulated glucose uptake but does not affect insulin secretion. Although the current study can neither confirm nor refute that hypothesis, it does support it -- given that the results were strongest in women, who tend to be more intrinsically insulin resistant. .. birth weights overall are relatively high in western societies, but survival of very low birth weights is higher than ever. it is fascinating to consider that prenatal care may have implications not just for child health, but for long-term adult health as well. 20.%% MW -Effect of Cinnamon on Glucose Control and Lipid Parameters Diabetes Care. 2008;31(1) Conclusions - In this meta-analysis of 5 randomized placebo- controlled trials, patients with T1 or T2 receiving cinnamon did not demonstrate statistically or clinically significant changes in A1C, FBG,[fasting blood glucose] or lipid parameters in comparison with subjects receiving placebo. The median duration of patient treatment and follow-up in all included trials was 12 weeks. This duration of treatment is appropriate to observe clinically significant changes in FBG and lipids. However, it is likely too short to see the full effect of treatment on A1C. Still, we would have expected a trend or tendency toward beneficial changes in A1C..Instead, A1C levels increased to a greater extent with cinnamon than with placebo in our meta-analysis. Cinnamon's ability to prevent diabetes in patients with pre-diabetes and those at high risk is unknown. 21.%% MW - Have the Risks of Rosiglitazone Been Exaggerated? Future Cardiol. 2008;4(1):9-13. ©2008 Future Medicine Ltd. Conclusions & Implications - The risk for adverse cardiovascular outcomes for diabetic patients taking rosiglitazone [avandia] is uncertain: neither increased nor decreased risk is established. These uncertainties were reflected in the vote of the Advisory Panel who voted 20:3 in favor of a suggestion of increased risk for ischemic cardiac events, but voted 22:1 against pulling it off the market. The FDA's recent decision to allow rosiglitazone to stay on the market with increased black-box warnings about the risk of IHD events also accurately reflects these uncertainties. In our opinion, reasoned analysis of additional data, derived primarily from prospective clinical trials designed specifically for establishing the cardiovascular benefit or risk of rosiglitazone, will be required to adjudicate these inconclusive results and resolve the uncertainties regarding the safety of rosiglitazone. It is reassuring that GSK has agreed to conduct a new long-term study to evaluate the potential cardiovascular risk of rosiglitazone as requested by the FDA. Meanwhile, in the face of uncertainty, the best advice for the practicing clinician is a 'don't stop, don't start' strategy. No need to stop rosiglitazone in patients who have tolerated it long term without any adverse events and whose blood sugars are under good control. No need to start patients on rosiglitazone before exhausting alternative treatment options. 22.%% MW -Current Management of Gestational Diabetes Mellitus Expert Rev of Obstet Gynecol. 2008;3(1) ©2008 Future Drugs Ltd. 2/18/2008 Abstract - Diabetes mellitus is one of the most common medical complications of pregnancy; gestational DM (GDM) accounts for approximately 90-95% of all cases. GDM is defined as carbohydrate intolerance of variable severity with onset or first recognition during pregnancy. It has been demonstrated that good metabolic control maintained throughout pregnancy can reduce maternal and fetal complications in diabetes. Diet is the mainstay of treatment in GDM, but physical activity is a helpful adjunctive therapy when euglycemia is not achieved by diet alone. When diet and exercise fail to maintain euglycemia, exogenous insulin is used. Traditionally, insulin therapy has been considered the gold standard for management. The American College of Obstetricians and Gynecologists and ADA do not currently recommend oral hypoglycemic agents as a treatment for GDM. Concerns regarding safety demand further well-designed studies. 23.%% MW-Autonomic Regulation of the Association Between Exercise and Diabetes Exerc Sport Sci Rev. 2008;36(1) 2/19/2008 Summary - The autonomic nervous system is an attractive mechanism to evaluate in the association between physical activity and diabetes incidence. One of the most compelling reasons is the responsiveness of the autonomic nervous system to lifestyle changes. Increasing physical activity levels has numerous primary and secondary benefits that are realized independent of the challenging goal of weight loss. The positive impact of physical activity on autonomic nervous system functioning may prove to be a key benefit in diabetes prevention. 24.%% MW- Early Detection and Significance of Structural Cardiovascular Abnormalities in Patients With Type 2 Diabetes Mellitus Expert Rev Cardiovasc Ther. 2008;6(1) 2/15/2008 Abstract - Cardiovascular disease is the leading cause of death among patients with T2DM. The main forms of structural heart disease associated with diabetes are coronary heart disease and diabetic cardiomyopathy, which is characterized by left ventricular hypertrophy, left ventricular diastolic and systolic dysfunction. Asymptomatic structural heart disease is common and associated with a poor prognosis in patients with DM. Contemporary practice guidelines do not recommend screening of asymptomatic individuals for structural heart disease. Potential screening modalities, such as echocardiography, are costly and inaccessible. A simple, inexpensive blood test for brain natriuretic peptide is a useful marker of structural heart disease and is a prime candidate for screening patients with T2 and prioritizing referral for echocardiography...A simple blood test, brain natriuretic peptide (BNP), is emerging as a potential screening tool. The cardiac ventricles secrete BNP in response to an increase in wall stress. BNP, which has multiple actions including diuresis, has emerged as an important cardiac neurohormone with multiple potential roles in the management of patients with cardiac dysfunction... 25.%% MW -Vildagliptin Improves Control of Type 2 Diabetes With Mild Hyperglycemia (Reuters Health) Feb 18 - Vildagliptin, [galvus] a potent and selective dipeptidyl peptidase-IV (DPP-4) inhibitor, produces long-term improvement in beta-cell function and glycemic control in patients with T2DM and mild hyperglycemia, according to a new report. " Improvement of glucose control, which was a known fact for vildagliptin, is paralleled, and likely caused, by an improvement of beta-cell function, " Dr. A. Mari told Reuters Health. [ effects of 1 year of treatment with vildagliptin versus placebo on beta-cell function in 306 patients with T2 and only mild hyperglycemia (HbA1c of 6.2%-7.5%). Vildagliptin significantly increased insulin secretion rate (by 17%), and glucose sensitivity (by 40%), compared to placebo. " Because none of the effects of vildagliptin were maintained after a 4-week washout period, we conclude that longer term studies would be necessary to determine whether DPP-4 inhibition modifies disease progression, " the authors add. J Clin Endocrinol Metab 2008;93 26.%% MW - Does Waist Circumference Predict Diabetes and Cardiovascular Disease Beyond Commonly Evaluated Cardiometabolic Risk Factors? Diabetes Care. 2007;30(12) Posted 02/22/2008 Objective: While the measurement of waist circumference (WC) is recommended in current clinical guidelines, its clinical utility was questioned in a recent consensus statement. In response, we sought to determine whether WC predicts DM and cardiovascular disease (CVD) beyond that explained by BMI and commonly obtained cardiometabolic risk factors including BP, lipoproteins, and glucose. [5,882 adults from the 1999-2004 National Health and Nutrition Conclusions: WC predicted DM, but not CVD, beyond that explained by traditional cardiometabolic risk factors and BMI. The findings lend critical support for the recommendation that WC be a routine measure for identification of the high-risk, abdominally obese patient. AFB - Amer Foundation for the Blind Abbreviations: T1DM - type 1 diabetes mellitus T2DM - type 2; ADA - American Diabetes Association; BP - blood pressure; DM - diabetes Mellitus;HTN - hypertension; MW Medscape Web MD; FDA Federal Drug Administration; NIH - National Institutes of Health; VA - Veterans Administration. MND- Medical News Today Definitions - Dorlands 31st Ed and Google. Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports are excerpted unless otherwise noted. This project is done as a courtesy to the blind/visually impaired and diabetic communities. Dawn Wilcox Coordinator The Health Library at Vista Center contact above e-mail or thl@... Quote Link to comment Share on other sites More sharing options...
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