Guest guest Posted September 4, 2001 Report Share Posted September 4, 2001 Don't be discouraged we have all been there and at times continue to be. From what I understand not all children that are autistic have apraxia. However I have read that sometimes children are misdiagnosed with autism when they are really apraxic. Regarding the MRI, what does the doctor hope to find out? Next I would approach the school district with the doctor's recommendation that your child receive a more intense schedule. Hold your ground and don't let them tell you what they think is appropriate. Did the school also do a full evaluation? If he has sensory issues then OT services would help that as well as the speech. Lastly have you had an evaluation done by a speech therapist? Is this where you got the possible apraxia diagnosis. See if you can get into the developmental neurologist before December. Good luck. --- In @y..., Kristi Olsen <kristi_olsen@e...> wrote: > Hi, > I have just a few questions. I have a 3.5 year old son. I had been told > that he very likely had apraxia. (He is very vocal, but non verbal.) I took > him to a dr. that has experience with children and delays. She does NOT > think he has verbal apraxia, but did say he had autistic tendencies, some > sensory issues, and possible obsessive-compulsive problems. I left not > knowing what to think. We scheduled a MRI in Sept. Does anyone know what > this test reveals or if it is even worth going through? I have an appt. > with a Ped. Neurologist in Dec. and she warned me about a lot of blood tests > they could possibly do. I'm not sure what to think. I went in thinking > speech therapy was my goal for him and now does he need more? starts > Special Ed Preschool tomorrow. He'll go two days a week, but the dr we saw > recommeded asking for the 4 day a week schedule. > Also, I thought that the reason some Autistic children don't talk WAS > basically apraxia, that they go hand-in hand. > Anyway can you tell I am confused as to what to think. > > Any feelings on MRI's or autisim, I would really love to hear. > > Thanks, > Kristi (mom to 3.5 yrs with WHO KNOW!!) Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 4, 2001 Report Share Posted September 4, 2001 Hi Kristi, My son, 5.1, has a lot of dx's also. His dev. ped. has him listed as apraxia, hypotonia, and global delays. I have had some professionals tell me that he is autistic. He had an MRI done in May, 2000. It was a tough thing for both of us to go thru, since he had to be put to sleep with a needle in his hand. He cried himself to " sleep " . The MRI showed nothing abnormal in his brain. I'm not sure what exactly they are looking for. I have my theories about , tho. Towards the end of my pregnancy it was discovered that his heart rate was dropping to as low as 60 bpm. I believe that his problems were caused by a lack of oxygen to his brain. gets ABA therapy in my home every day for 3 hours. Soon they want to start an afternoon session, in addition to the morning session. Getting all of this therapy can only catch them up that much sooner! If you can get your son more class time, I think that would be a good thing. When was 3 and started his special preschool, I didn't think he could handle that, either. There were times that he took a little cat nap in the classroom! But he ended up really enjoying himself. I don't send him there anymore b/c he wasn't working hard enough. He needs the 1x1 therapy to really progress. Hope this helps! ~~ in PA [ ] Discouraged! > Hi, > I have just a few questions. I have a 3.5 year old son. I had been told > that he very likely had apraxia. (He is very vocal, but non verbal.) I took > him to a dr. that has experience with children and delays. She does NOT > think he has verbal apraxia, but did say he had autistic tendencies, some > sensory issues, and possible obsessive-compulsive problems. I left not > knowing what to think. We scheduled a MRI in Sept. Does anyone know what > this test reveals or if it is even worth going through? I have an appt. > with a Ped. Neurologist in Dec. and she warned me about a lot of blood tests > they could possibly do. I'm not sure what to think. I went in thinking > speech therapy was my goal for him and now does he need more? starts > Special Ed Preschool tomorrow. He'll go two days a week, but the dr we saw > recommeded asking for the 4 day a week schedule. > Also, I thought that the reason some Autistic children don't talk WAS > basically apraxia, that they go hand-in hand. > Anyway can you tell I am confused as to what to think. > > Any feelings on MRI's or autisim, I would really love to hear. > > Thanks, > Kristi (mom to 3.5 yrs with WHO KNOW!!) > > > > > > _______________________________________________________ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ > > > > > > ****Official Statement from the 7/23,24/01 landmark apraxia conference is NOW POSTED at http://www.apraxia.cc!!!!**** > > Like information but not emails? Choose the option of " no emails web only " to read, respond to, or post messages directly from the website. For all the emails sent in one choose " digest. " If you need help with membership options, please email , , or Rhonda at -owner > > If you are looking for support in your own area, contact CHERAB's Outreach Coordinator at nicole@... > > URL to the home page to change options/or to search the archives: > > Kaufman Kits & other products that may help: http://shopinserviceinc.goemerchant2.com > > The opinions expressed on this forum are the opinions of the individuals, not the CHERAB Foundation. Medical advice should be sought before implementing any therapeutic treatment. > > Post message: > List owner: -owner > For more information: http://www.apraxia.cc http://www.omega3ri.org > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 4, 2001 Report Share Posted September 4, 2001 Hi Kristie, There is information from a Developmental Pediatrician on " what is apraxia " with signs to look for that you can share with your child's doctor at the CHERAB website http://www.apraxia.cc If your child is nonverbal and three and a half years old it's important to find out why. Seek evaluations from both medical and speech professionals that are knowledgeable and experienced about apraxia and autism. Not all professionals are, which is why we need to raise awareness. As far as sensory issues, that is found in both autism and apraxia, as well as other disorders, and can also be found to stand alone. http://internalmedicine.medscape.com/IMNG/PediatricNews/2000/v34.n02/ped3402.42.\ 01.html There is a wealth of information/links at both http://www.apraxia.cc and in the archives here. Just go to childrenapraxianet put key word(s) into the box that says " search archives " and then when a page comes up, click on the messages of interest, and then click on next at the bottom until you see all the messages that may have information that can help you. Keep in mind that you may want to use different types of words that mean the same thing: (IEP, IEPs, school, advocacy, etc.) There is a huge amount of information for example on amounts or types of therapy in the archives, and on our website. Here are two past messages from Developmental Pediatricians Dr. Agin and Dr. Laveman that have information on apraxia and MRIs: From: " Marilyn Agin M.D. " Subject: re: aphasia vs. apraxia I would like to respond to the questions that some parents are asking re:aphasia vs. apraxia. One of the problems we have in discussing childhood speech and language disorders is terminology. I practiced speech pathology back in the 1970's. In graduate school we had mostly learned about working with articulation disorders in children, i.e. working on lisps, /th/ sound etc. There were groups of research SLP beginning to talk about language disorders in children separate from what we see in adults. The terminology of " aphasia " and " apraxia " traditionally refers to older adults who suffer strokes to the left side of the brain leaving them with speech and language problems, and usually a paralysis of the right side of the body called a hemiplegia. Adult aphasics may have receptive (comprehension) and/or expressive (difficulty verbalizing) language problems along with dysnomia (word finding problems), alexia (reading problems) and agraphia(writing problems). They may also have an apraxia with difficulty with the organization and sequencing of speech sounds. In attempts to describe what SLP researchers began seeing in children, i.e. receptive/expressive language problems, and a motor planning disorder involving the speech mechanism, they borrowed the adult terminology and began to talk about childhood aphasia and developmental apraxia. Purists will say you cannot have these disorders in childhood because the term implies that the individual had language and then had some brain insult (brain damage either due to a stroke, head injury, or accident) that caused them to lose their speech and language abilities. Others adopted the terminology because the speech/language characteristics were so similar to the adult model. This is part of the reason why some neurologists do not acknowledge apraxia as a diagnosis in children. There is a dilemma about what to call children who are having difficulty developing speech and language. I personally do not use the term childhood aphasia any more and refer mostly to children having a receptive and/or expressive language delay or disorder. Some therapists do and that is ok as long as you define your terms. Most children with speech-language disorders have some neurologic reason for their problems that is not easily identified in terms of time of onset. Also it does not usually show up on MRI or CAT scan since it is more subtle than the technology can show us. We will say they have a " static (not progressing) encephalopathy (brain damage) of probable prenatal origin of unknown etiology " . (What we are saying is that something went wrong probably during the gestation period). I would like to see the use of SPECT scans which documents blood flow in the brain used more, as one small study in 1989 found reduced blood flow in the frontal area of the brain involving Broca's area. That is the expressive language area of the brain. SPECT scans are very expensive and are usually found in academic institutions. We may incorporate using this technology as part of our EFA/apraxia research... So in summary, those children identified as having an aphasia and apraxia, will have a receptive and/or expressive language component as well as a speech disorder related to motor planning and sequencing sounds. Hope this helps your understanding of the problem. Always ask the professionals you see to define their terms (medical jargon!) to comprehensible English! Marilyn Agin, M.D Medical Director CHERAB Foundation http://www.apraxia.cc From: " Lawrence Laveman " <laveman56@...> Subject: MRI and role of developmental pediatrician Hi Mitch: Let's take your two questions individually " Hi. My son is 5 years old, he has been dx with verbal apraxia for 2 years now and has been receiving speech therapy for as long. His neurologist is sending him for an MRI of the speech area of his brain to rule out any lesions in that area. what to expect to find from an MRI ( is there something that causes apraxia that will show up on an MRI) " An MRI of the brain will rule out several questions your neurologist may have. First, is there any obvious structural malformation of 's brain that may be causing the apraxic findings. Second, is there an immaturity, in the absence of malformation, of the brain itself that may explain the delays in skills - if your brain is delayed in its maturation, it is logical to assume that the skills it is capable of handling will also be delayed. Third, is there any vascular (blood vessel - related) changes in his brain - any areas of decreased blood supply, scar tissue, etc. " His neurologist has suggested we make an appointment for him to see an developmental Pediatrician, which we did with great effort, the developmental pediatrician couldn't understand why we wanted him to see , after describing his problems and being referred to him by a neurologist that works with him, it took several phone calls to the neurologist, the neurologist office to the pediatrician, the pediatrician to us to finally get him an appointment in the middle of August? Also should I consider looking for a different pediatrician since their seems to be a lack of interest in my sons case already with the unwillingness of them to give us an appointment. " Unfortunately, there are more ped neurologists than DBP's, and it is sad but not surprising that there is a greater delay in getting an appointment with one. Don't view this as a " lack of interest " - on the contrary, you are doing the best you can given the circumstances. I would advise you to call around - other developmental peds specialists may have a shorter waiting list. Your general pediatrician is most likely not disinterested in 's case, but more likely not well-informed enough to respond to the issues you raise. That is why people like myself and Dr. Agin do what we do. " And what does a developmental pediatrician do different than that of a regular pediatrician? " Ah, my friend, that would take a dissertation (and in fact a talk I often give...). In summary, we have gone on from pediatric residency to spend two to three additional years working with children having developmental disabilities in a supervised training program at a center where evaluations are done. The two training programs in New Jersey are at UMDNJ-NJMS (Hackensack) and at UMDNJ-RWJMS (New Brunswick), two of the largest centers for evaluation of children in the state. Most of us continue to be affiliated with hospital-based programs in developmental disabilities - often in state-funded Child Evaluation Centers (there are nine in NJ). So, in essence, you see a lot, you do a lot, you deal with these issues day in and day out, something that general pediatricians don't necessarily do. Just as endocrinologists know more about your glands, and nephrologists your kidneys, a developmental pediatrician can help you navigate the maze of services your child may need, and create a " medical home " , as the American Academy of Pediatrics refers to it, for your child. Email me if you have any further questions. Larry Laveman, MD Consultant, CHERAB Fdn. http://www.apraxia.cc --- In @y..., Kristi Olsen <kristi_olsen@e...> wrote: Hi, I have just a few questions. I have a 3.5 year old son. I had been told that he very likely had apraxia. (He is very vocal, but non verbal.) I took him to a dr. that has experience with children and delays. She does NOT think he has verbal apraxia, but did say he had autistic tendencies, some sensory issues, and possible obsessive- compulsive problems. I left not knowing what to think. We scheduled a MRI in Sept. Does anyone know what this test reveals or if it is even worth going through? I have an appt. with a Ped. Neurologist in Dec. and she warned me about a lot of blood tests they could possibly do. I'm not sure what to think. I went in thinking speech therapy was my goal for him and now does he need more? starts Special Ed Preschool tomorrow. He'll go two days a week, but the dr we saw recommeded asking for the 4 day a week schedule. Also, I thought that the reason some Autistic children don't talk WAS basically apraxia, that they go hand-in hand. Anyway can you tell I am confused as to what to think. Any feelings on MRI's or autisim, I would really love to hear. Thanks, Kristi (mom to 3.5 yrs with WHO KNOW!!) Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 28, 2004 Report Share Posted July 28, 2004 My diet is 100% better, my calories are lower..and yet, my weight loss seems to have stalled and bounces within a two lb range and has done so for the last 6 weeks. How do the rest of you keep on the path when this type of thing happens? Thanks! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 28, 2004 Report Share Posted July 28, 2004 Try a new strategy. Is your goal health and longevity, or weight loss qua weight loss? >From: bernadettepawlik@... >Reply- > >Subject: [ ] Re: Discouraged! >Date: Wed, 28 Jul 2004 12:43:44 EDT > >My diet is 100% better, my calories are lower..and yet, my weight loss >seems >to have stalled and bounces within a two lb range and has done so for the >last >6 weeks. > >How do the rest of you keep on the path when this type of thing happens? > >Thanks! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 28, 2004 Report Share Posted July 28, 2004 Or stick to the same strategy and revise your thinking. I remember plateauing for what seemed like MONTHS while losing. But that was normal. After a few months I started losing again. So have patience. In any case, if you are on a CRON diet, focusing on weight is not the goal. Better health is. So keep to your healthier diet and focus on that. In fact the mice that lost the least weight on CRON lived the longest. One tip: are you using high fiber (with meals) such as guar? That seems to aid in weight loss. Also, you don't give us any stats. How tall are you? How much do you weigh? Often, we THINK we should weigh less (our society's images of fashion models etc) when such weight is unattainable for most people. on 7/28/2004 12:50 PM, Dowling at dowlic@... wrote: > Try a new strategy. > > Is your goal health and longevity, or weight loss qua weight loss? > > >> From: bernadettepawlik@... >> Reply- >> >> Subject: [ ] Re: Discouraged! >> Date: Wed, 28 Jul 2004 12:43:44 EDT >> >> My diet is 100% better, my calories are lower..and yet, my weight loss >> seems >> to have stalled and bounces within a two lb range and has done so for the >> last >> 6 weeks. >> >> How do the rest of you keep on the path when this type of thing happens? >> >> Thanks! > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 28, 2004 Report Share Posted July 28, 2004 Hi Bernadette: Do you weigh yourself every morning AND THEN PLOT THAT WEIGHT ON A CHART SOMEWHERE? (Fitday.com for example) I doubt you or anyone else ever 'plateaus' when consuming a CR diet. In my case FOR CERTAIN, while it may look like a plateau the problem is not plateauing. The problem is that everyone's weight varies so much from day to day and week to week for many reasons, that it is very difficult to see the trend. By far the single largest reason for these fluctuations in weight is the diuretic/anti-diuretic content of the foods we eat. This causes HUGE fluctuations in weight because of the amount of water retained or discarded by your body in response to those foods. (In my case the fluctuations in the past six months have been from five pounds below the trend to five pounds above it. Yes. A ten pound range. But my trend weight has fallen about thirteen pounds as planned. Yet that is barely more than the fluctuation!) For example, when you drink tea you lose a large amount of water and lose weight, artificially. If you drink wine, or a salty (japanese, perhaps) meal, your body will retain all the water it can, and you artificially gain weight. In the case of salt (ever wonder why establishments that sell beer provide SALTY pretzels FOR FREE?) the reason for it is that your body makes you thirsty as a means of trying to dilute the salt concentration in your body until it has had time to excrete the excess, which takes a few days. Take some of my numbers as an example. Had I not been plotting the data daily, and had I not understood the 'diuretic issue', I could easily have been fooled into thinking that my weight had not only plateaued, but gone UP sharply! Around 17th February my weight was 164 pounds (an aberration on the low side). On 12th June it was 169½ pounds. Apparently a five pound weight GAIN in nearly four months!!! But on 19th July I was 157!!! I am now back up to ~161. The reason was that the February number was a completely unrealistic, lots-of-tea recently, low point, five pounds below trend. Similarly my mid-June number was a totally unrealistically high number, five pounds above trend, because of a weekend where I drank wine and had a lot of (very healthy but always salty) japanese food. The simple fact is that the TREND in my weight has been down at a pretty steady rate of half a pound a week for six months. But the fluctuations above and below that trend make it difficult to see what the trend is unless you plot it and recognize the aberrations for what they are. That is, understand what causes the aberrations and when they happen, recognize them. There is a simple solution. It is in the second half of the very first paragraph of this post. Rodney. > My diet is 100% better, my calories are lower..and yet, my weight loss seems > to have stalled and bounces within a two lb range and has done so for the last > 6 weeks. > > How do the rest of you keep on the path when this type of thing happens? > > Thanks! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 28, 2004 Report Share Posted July 28, 2004 Hi folks: If anyone can tell me how to link up in some way to the chart of my weight at Fitday.com so that people here can see it, I would be happy to do so. It really would demonstrate, I think, how easy it is to be tricked into believing one is 'plateaued'. When the real explanation is the difficulty in discerning the gradual down trend from the substantial noise in the data. Anyway, if you know approximately how many calories you are burning and how many you are eating and convert that information into an approximation of your weekly weight loss, and recognize the things in your diet that cause the fluctuations, it should help discern the trend. Rodney. > > My diet is 100% better, my calories are lower..and yet, my weight > loss seems > > to have stalled and bounces within a two lb range and has done so > for the last > > 6 weeks. > > > > How do the rest of you keep on the path when this type of thing > happens? > > > > Thanks! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 30, 2004 Report Share Posted July 30, 2004 This is completely normal. The body has an amazing ability to adapt to different metabolic states in terms of preserving body fat, negating an obvious calorie deficit for periods of time. The effect is more pronounced in women, than in men. You can either wait it out or you could consider the below to " unstuck " you: 1. 50% protein, 25%-30% carbohydrates, 20%-25% fat. But keep net carbohydrates at least 130 grams a day for brain function. 2. 7-Keto DHEA (normalizes thyroid) & Synephrine (increases metabolism). Logan > My diet is 100% better, my calories are lower..and yet, my weight loss seems > to have stalled and bounces within a two lb range and has done so for the last > 6 weeks. > > How do the rest of you keep on the path when this type of thing happens? > > Thanks! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 30, 2004 Report Share Posted July 30, 2004 And where do you get this information? on 7/29/2004 9:35 PM, loganruns73 at loganruns73@... wrote: > This is completely normal. The body has an amazing ability to adapt > to different metabolic states in terms of preserving body fat, > negating an obvious calorie deficit for periods of time. The effect > is more pronounced in women, than in men. You can either wait it out > or you could consider the below to " unstuck " you: > > 1. 50% protein, 25%-30% carbohydrates, 20%-25% fat. But keep net > carbohydrates at least 130 grams a day for brain function. > > 2. 7-Keto DHEA (normalizes thyroid) & Synephrine (increases > metabolism). > > Logan > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 30, 2004 Report Share Posted July 30, 2004 This is anecdotal evidence from the field of sports nutrition, specifically body-building. I'm not aware of any published, empirical research specificing addressing the protocol. The purpose of 7-Keto DHEA is to safely upregulate the thyroid gland to increase thermogenesis, i.e. the uncoupled oxidation of fatty acids contained within brown adipose tissue. Hypothyroidism is one of the symptoms of calorie restriction as well as the " normal " age- onset hormonal decline. Synephrine is one of several beta3-adrenoceptor agonists which triggers one of the pathways for fat loss, but is not a strong nervous system stimulator. So while guarana and other stimulants can and do work, the problem with stimulating directly via the nervous system is the weight-gaining rebound effect when the stimulation is ceased (not to mention the potential for physical addiction!). It is better and safer to rely on CRON as a foundation for creating an energy deficit. And while I'm at it, CLA shrinks the size of fat cells but doesn't reduce their number at all. Logan 7-KETO DHEA Relationship of dehydroepiandrosterone and its 7-hydroxylated metabolites to thyroid parameters and sex hormone-binding globulin (SHBG) in healthy subjects. Hampl R, Hill M, Bilek R, Starka L. Institute of Endocrinology, Prague, Czech Republic. rhampl@... Clin Chem Lab Med. 2003 Aug;41(8):1081-6. The concentrations of four immunomodulatory steroids, namely dehydroepiandrosterone (DHEA), its sulfate and its 7-hydroxylated metabolites, and sex hormone-binding globulin (SHBG) and major laboratory parameters of thyroid function were determined in sera from 104 healthy females and 48 males, screened for iodine deficiency in one region of the Czech Republic. The mutual relationships of the laboratory parameters were investigated by using four statistical approaches: correlation analysis, principal component analysis, canonical correlation and linear model relationship. In addition to expected correlations among thyroid parameters and substrate-product relationships among the steroids, several new relationships were revealed: The only thyroid parameter tightly correlating with SHBG was free triiodothyronine. The latter hormone was also associated with one of the 7-OH-DHEA epimers, namely with 7beta-OH-DHEA. Thyroid hormones are known to possess thermogenic properties, as does another 7-oxygenated DHEA metabolite, 7-oxo-DHEA, the major metabolite of which is 7beta-OH-DHEA. It may indicate a link between the two thermogenic factors. The results should serve for further investigation of changes in the thyroid hormone concentrations, together with SHBG and dehydroepiandrosterone metabolites, under various pathological situations. --- 7-oxo-DHEA and Raynaud's phenomenon. Ihler G, Chami-Stemmann H. Department of Medical Biochemistry and Medical Genetics, Texas A & M College of Medicine, College Station 77843, USA. gmihler@... Med Hypotheses. 2003 Mar;60(3):391-7. Patients with Raynaud's phenomenon have abnormal digital vasoconstriction in response to cold. The pathogenesis remains unknown but may involve a local neurovascular defect leading to vasoconstriction. Diagnosis of primary Raynaud's phenomenon is based on typical symptomatology coupled with normal physical examination, normal laboratory studies and lack of observable pathology by nail fold capillaroscopy. Secondary Raynaud's phenomenon is known to occur associated with several connective tissue diseases, vascular injury due to repeated vibrational trauma, and other causes which produce demonstrable vascular and microcirculatory damage. Treatment of Raynaud's symptoms is conservative and aimed at prevention of attacks. Patients are advised to remain warm and, if possible, to live in warm climates. We suggest that an ergogenic (thermogenic) steroid, 7-oxo-DHEA (3-acetoxyandrost-5-ene-7,17-dione), which is available without prescription as the trademarked 7-keto DHEA, may be very helpful in prevention of primary Raynaud's attacks by increasing the basal metabolic rate and inhibiting vasospasm. --- The effects of the ergosteroid 7-oxo-dehydroepiandrosterone on mitochondrial membrane potential: possible relationship to thermogenesis. Bobyleva V, Bellei M, Kneer N, Lardy H. Dipartimento di Scienze Biomediche, Universita di Modena, Italy. Arch Biochem Biophys. 1997 May 1;341(1):122-8. Administered 3 beta-hydroxyandrost-5-ene-7,17-dione (7-oxo-DHEA) is more effective than 3 beta-hydroxyandrost-5-en-7-one (DHEA) as an inducer of liver mitochondrial sn-glycerol-3-phosphate dehydrogenase and cytosolic malic enzyme in rats. Like DHEA, the 7-oxo metabolite enhances liver catalase, fatty acylCoA oxidase, cytosolic sn-glycerol- 3-phosphate dehydrogenase, mitochondrial substrate oxidation rate, and the reconstructed sn-glycerol 3-phosphate shuttle. The mitochondrial adenine nucleotide carrier is diminished by thyroidectomy and is restored to normal activity by administering 7- oxo-DHEA. The relationship between respiratory rate and proton motive force across the mitochondrial membrane was measured in the nonphosphorylating state. When treated with increasing concentrations of respiratory inhibitors liver mitochondria from rats treated with 7- oxo-DHEA or thyroid hormones show a more rapid decline of membrane potential than do normal liver mitochondria. Thus 7-oxo-DHEA induces an increased proton leak or slip as has been reported for the thyroid hormone by M.D. Brand [(1990) Biochem. Biophys. Acta 1018, 128-133]. This process may contribute to the enhanced thermogenesis caused by ergosteroids as well as by thyroid hormones. SYNEPHRINE Selective activation of beta3-adrenoceptors by octopamine: comparative studies in mammalian fat cells. Carpene C, Galitzky J, Fontana E, Atgie C, Lafontan M, Berlan M. Institut National de la Sante et de la Recherche Medicale (INSERM), Unite 317, Institut Federatif de Recherches 31, CHU Rangueil, Toulouse, France. carpene@... Naunyn Schmiedebergs Arch Pharmacol. 1999 Apr;359(4):310-21. Numerous synthetic agonists selectively stimulate beta3-adrenoceptors (ARs). The endogenous catecholamines, noradrenaline and adrenaline, however, stimulate all the beta-AR subtypes, and no selective physiological agonist for beta3-ARs has been described so far. The aim of this study was to investigate whether any naturally occurring amine can stimulate selectively beta3-ARs. Since activation of lipolysis is a well-known beta-adrenergic function, the efficacy and potency of various biogenic amines were compared with those of noradrenaline, isoprenaline, and beta3-AR agonists 4-(- inverted question mark[2-hydroxy-(3-chlorophenyl)ethyl]-amino inverted question mark propyl)phenoxyacetate (BRL 37,344) and (R,R)-5-(2- inverted question mark[2-(3-chlorophenyl )-2-hydroxyethyl]-amino propyl)-1,3-benzo-dioxole-2,2-dicarboxylate (CL 316,243) by testing their lipolytic action in white fat cells. Five mammalian species were studied: rat, hamster and dog, in which selective beta-AR agonists act as full lipolytic agents, and guinea-pigs and humans, in which beta3-AR agonists are less potent activators of lipolysis. Several biogenic amines were inefficient (e.g. dopamine, tyramine and beta-phenylethylamine) while others (synephrine, phenylethanolamine, epinine) were partially active in stimulating lipolysis in all species studied. Their actions were inhibited by all the beta-AR antagonists tested, including those selective for beta1- or beta2- ARs. Octopamine was the only amine fully stimulating lipolysis in rat, hamster and dog fat cells, while inefficient in guinea-pig or human fat cells, like the beta3-AR agonists. In rat white fat cells, beta-AR antagonists inhibited the lipolytic effect of octopamine with a relative order of potency very similar to that observed against CL 316,243. Competitive antagonism of octopamine effect resulted in the following apparent pA2 [-log(IC50), where IC50 is the antagonist concentration eliciting half-maximal inhibition] values: 7.77 (bupranolol), 6.48 [3-(2-ethyl-phenoxy)-1[(1 S)-1,2,3,4- tetrahydronaphth-1-ylaminol]-(2S)2-propanol oxalate, SR 59230A, a beta3-selective antagonist], 6.30[erythro-D,L-1(7-lethylindan-4- yloxy)-3-isopropylamino-+ ++butan-2-ol, ICI 118,551, a beta2- selective antagonist] and 4.71 [(+/-)-[2-(3-carbomyl-4- hydroxyphenoxy)-ethylamino]-3-[4-(1- methyl-4-trifluoromethyl-2- imidazolyl)-phenoxy]2-propanolmethane sulphonate, CGP 20712A, a beta1- selective antagonist]. Octopamine had other properties in common with beta3-AR agonists: stimulation of oxygen consumption in rat brown fat cells and very low affinity in displacing [3H]CGP 12,177 binding to [beta1- or beta2-ARs in dog and rat adipocyte membranes. In Chinese hamster ovary (CHO) cells expressing human beta3-ARs, octopamine inhibited [125I]ICYP binding with only twofold less affinity than noradrenaline while it exhibited an affinity around 200-fold lower than noradrenaline in CHO cells expressing human beta1- or beta2-ARs. These data suggest that, among the biogenic amines metabolically related to catecholamines, octopamine can be considered as the most selective for beta3-ARs. > > > This is completely normal. The body has an amazing ability to adapt > > to different metabolic states in terms of preserving body fat, > > negating an obvious calorie deficit for periods of time. The effect > > is more pronounced in women, than in men. You can either wait it out > > or you could consider the below to " unstuck " you: > > > > 1. 50% protein, 25%-30% carbohydrates, 20%-25% fat. But keep net > > carbohydrates at least 130 grams a day for brain function. > > > > 2. 7-Keto DHEA (normalizes thyroid) & Synephrine (increases > > metabolism). > > > > Logan > > Quote Link to comment Share on other sites More sharing options...
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