Fw: ScienceDaily Health Headlines -- for Wednesday, June 10, 2009

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ScienceDaily Health Headlines -- for Wednesday, June 10, 2009

ScienceDaily Health Headlines

for Wednesday, June 10, 2009

Muscle Atrophy: When The Body Cannibalizes Itself (June 9, 2009) -- During desperate times, such as fasting or muscle wasting that afflicts cancer or AIDS patients, the body cannibalizes itself, atrophying and breaking down skeletal muscle proteins to liberate amino acids. A new study shows that muscle atrophy is a more ordered process than was previously thought. ... > full story

Insomnia With Objective Short Sleep Duration In Men Is Associated With Increased Mortality (June 9, 2009) -- Men with insomnia and sleep duration of six or fewer hours of nightly sleep are at an increased risk for mortality, according to a new research. ... > full story

Concussion Experts: For Kids -- No Sports, No Schoolwork, No Text Messages (June 9, 2009) -- When it comes to concussions, children and teens require different treatment, according to international experts. The new guidelines say children and teens must be strictly monitored and activities restricted until fully healed. These restrictions include no return to the field of play, no return to school, and no cognitive activity. ... > full story

Defeating Nicotine's Double Role In Lung Cancer (June 9, 2009) -- A lung cancer treatment that inhibits nicotine receptors was shown to double survival time in mice, according to new research. ... > full story

Common Chemotherapy Drug Can Trigger Fatal Allergic Reactions (June 9, 2009) -- A chemotherapy drug that is supposed to help save cancer patients' lives, instead resulted in life-threatening and sometimes fatal allergic reactions. A new study identified 287 hypersensitivity reactions and 109 deaths in patients who received Cremophor-based paclitaxel, a solvent-administered chemotherapy. Two patients who died from an allergic reaction had highly curable early-stage breast cancer. The allergic reactions are believed to be caused by the solvent, and the actual number of deaths is likely higher. ... > full story

Structure Of Bacteria Responsible For Traveler's Diarrhea Identified (June 9, 2009) -- Researchers have solved the structure of thin hair-like fibers called "pili" or "fimbriae" on the surface of bacteria that cause traveler's diarrhea. The findings have important implications for creating better therapeutics against diarrheal diseases. ... > full story

Relationship Found Between Napping, Hyperactivity, Depression And Anxiety (June 9, 2009) -- Napping may have a significant influence on young children's daytime functioning, according to a new research. ... > full story

New Antibiotics Could Come From A DNA Binding Compound That Kills Bacteria In 2 Minutes (June 9, 2009) -- A synthetic DNA binding compound has proved surprisingly effective at binding to the DNA of bacteria and killing all the bacteria it touched within two minutes. ... > full story

Researchers First To Document Early Signs For Diabetes In Kids As Young As 7 (June 9, 2009) -- Researchers in New Orleans are the first to document previously unknown markers for obesity, heart disease and diabetes, collectively called the metabolic syndrome, in children as young as 7. ... > full story

Computer-Related Injuries On The Rise: Young Children Particularly At Risk (June 9, 2009) -- While back pain, blurred vision and mouse-related injuries are now well-documented hazards of long-term computer use, the number of acute injuries connected to computers is rising rapidly. Researchers have found a more-than-sevenfold increase in computer-related injuries due to tripping over computer equipment, head injuries due to computer monitor falls and other physical incidents. ... > full story

'Eco-Atkins': Plant-based, Low-carb Diet May Promote Weight Loss And Improve Cholesterol Levels (June 9, 2009) -- Overweight individuals who ate a low-calorie, low-carbohydrate diet high in plant-based proteins for four weeks lost weight, and experienced improvements in blood cholesterol levels and other heart disease risk factors, according to a new report. A high-carbohydrate, low-fat vegetarian diet also resulted in weight loss but without the additional cardiovascular benefits. ... > full story

Fruit Fly Stem Cells Filmed Live (June 9, 2009) -- How can stem cells be used in regenerative medicine? In what way might they lead to certain cancers? Stem cell research is a major challenge for medicine. Recently, asymmetric cell division was filmed in vivo in fruit fly germinal stem cells for the first time. ... > full story

Discovery Of New Proteins May Lead To More Effective Treatment Of Endocarditis And Infections Associated With Implants (June 9, 2009) -- Scientists have discovered two new proteins that are of importance to the survival of bacteria and their colonization of the human body. Besides enhancing our knowledge of the ability of bacteria to spread, the findings may also lead to more effective treatment of endocarditis and infections associated with implants. ... > full story

Enzyme Necessary For DNA Synthesis Can Also Erase DNA (June 9, 2009) -- Scientists have discovered a new mechanism behind an important process that causes a rapid reduction of DNA in the chromosomes of bacteria. The findings advance our knowledge of how DNA content has been reduced, which is something that has occurred in bacteria that live as parasites inside the cells of other organisms. ... > full story

Middle-aged Women Experience More Stress But Have Lower Blood Pressure (June 9, 2009) -- Both blood pressure and serum lipid levels have improved in Swedish middle-aged women during the past 30 years. Levels of perceived mental stress, however, have increased significantly. ... > full story

Unexpected Discovery Can Open A New Chapter In The Fight Against Tuberculosis (June 9, 2009) -- A close relative of the microorganism that causes tuberculosis in humans has been found to form spores. This discovery might constitute a new turn in the fight against human tuberculosis. ... > full story

Stopping Fatty Change In Heart Cells (June 9, 2009) -- One molecule is all it takes to set a fatal chain of events in motion that can end up leading to heart failure. Cell biologists have discovered why oxygen deficiency causes the myocardial muscle to extract energy from sugar and store fat in the cells. ... > full story

Let Me Sleep On It: Creative Problem Solving Enhanced By REM Sleep (June 9, 2009) -- Research led by a leading expert on the positive benefits of napping suggests that rapid eye movement (REM) sleep enhances creative problem-solving. The findings may have important implications for how sleep, specifically REM sleep, fosters the formation of associative networks in the brain. ... > full story

Link Unraveled Between Chromosomal Instability And Centrosome Defects In Cancer Cells (June 9, 2009) -- Scientists have disproved a century-old theory about why cancer cells often have too many or too few chromosomes, and show that the actual reason may hold the key to a novel approach to cancer therapy. ... > full story

Hundreds Of Cell-surface Proteins Can Be Simultaneously Studied With New Technique (June 9, 2009) -- A new method now enables researchers to study hundreds of cell-surface proteins simultaneously. The results obtained could help to develop more accurate diagnostic tests and more specific therapies in the future. ... > full story

New Approach To Prevent Antibody-mediated Damage In Kidney Transplants (June 9, 2009) -- Early results from research study demonstrate the effectiveness of a new approach to blocking an important part of the immune system that causes severe damage to some kidney transplants. ... > full story

Self-regulation Game Predicts Kindergarten Achievement (June 9, 2009) -- Early childhood development researchers have discovered that a simple, five-minute self-regulation game not only can predict end-of-year achievement in math, literacy and vocabulary, but also was associated with the equivalent of several months of additional learning in kindergarten. ... > full story

Gene Therapy For Hemophilia A Mice (June 9, 2009) -- Hemophilia A is an inherited bleeding disorder caused by a lack of the blood clotting protein Factor VIII. Current gene therapy approaches to treat the condition have had little clinical success. However, hope is provided by researchers who have developed a new approach to target genes to the cells that are the main source of Factor VIII and used it to provide long-term expression of Factor VIII in hemophilia A mice, markedly reducing their disease. ... > full story

Insights Into Locally Advanced Breast Cancer (June 9, 2009) -- Scientists are reporting two findings that could influence the way researchers screen for, treat and assess prognosis for women with locally advanced breast cancer, an aggressive form of the disease. One finding offers a critical message regarding treatment strategy, they say. ... > full story

Genetic Link Found Between Anxiety, Depression And Insomnia (June 9, 2009) -- The genes that play a role in adolescent insomnia are the same as those involved in depression and anxiety, according to a new research. ... > full story

Colorectal Cancer Increasing In Young Adults (June 8, 2009) -- A new study finds that in sharp contrast to the overall declining rates of colorectal cancer in the United States, incidence rates among adults younger than age 50 years are increasing. The authors theorize that these increases may be related to rising rates of obesity and changes in dietary patterns, including increased consumption of fast food. ... > full story

Gene That Regulates Tumors In Neuroblastoma Identified (June 8, 2009) -- Researchers have identified a gene that may play a key role in regulating tumor progression in neuroblastoma, a form of cancer usually found in young children. Scientists hope the finding could lead to an effective therapy to inhibit the expression of this gene. ... > full story

Excessive Gaming Associated With Poor Sleep Hygiene And Increased Sleepiness (June 8, 2009) -- Computer/console gamers who play for more than seven hours a week, and who identify their gaming as an addiction, sleep less during the weekdays and experience greater sleepiness than casual or nongamers, according to new research. ... > full story

Lethal Cancer Knocked Down By One-two Drug Punch (June 8, 2009) -- Scientists have developed a new approach to treating leukemia, one that targets leukemia-proliferating cells with drugs that are already on the market. The research team identified a gene involved with the inflammatory response that could hold the key to treating or even preventing chronic myeloid leukemia, a lethal cancer. ... > full story

MDCT Angiography Leads To Successful Treatment Of Severely Blocked Arteries In The Legs (June 8, 2009) -- MDCT angiography leads to accurate recommendations for successful treatment of patients with critical limb ischemia, sometimes allowing the patients to avoid more complicated surgery, according to a new study. ... > full story

Recruitment Of Reproductive Features Into Other Cell Types May Underlie Extended Lifespan In Animals (June 8, 2009) -- Researchers have found that certain genetic mutations known to extend the lifespan of the C. elegans roundworm induce "mortal" somatic cells to express some of the genes that allow the "immortality" of reproductive germline cells. ... > full story

Television Watching Before Bedtime Can Lead To Sleep Debt (June 8, 2009) -- Television watching may be an important determinant of bedtime, and may contribute to chronic sleep debt. ... > full story

'Warrior Gene' Linked To Gang Membership, Weapon Use (June 8, 2009) -- Boys who carry a particular variation of the gene Monoamine oxidase A (MAOA), sometimes called the "warrior gene," are more likely not only to join gangs but also to be among the most violent members and to use weapons, according to a new study that is the first to confirm an MAOA link specifically to gangs and guns. ... > full story

New Imaging Technique: Toward Spinal Cord Regeneration? (June 8, 2009) -- Scientists have revealed the interaction between the regrowth of axons inside the spinal cord and the development of blood vessels in cases of spinal cord injury in mice. The result was obtained using a promising combination of imaging techniques, and has brought us one step closer toward the regeneration of the spinal cord. ... > full story

New Arenavirus Discovered As Cause Of Hemorrhagic Fever Outbreak In South Africa And Zambia (June 8, 2009) -- Scientists have discovered the new virus responsible for a highly fatal hemorrhagic fever outbreak in Zambia and South Africa in late 2008. ... > full story

Washing Hands Properly Helps Stop Spread Of Contagious Diseases (June 8, 2009) -- We all know that coughs and sneezes spread diseases -- and that we should wash our hands to prevent passing on nasty viruses and bacteria. But how many of us just flick our hands under a dribbling tap and think that will do? Now hopeless hand washers will be caught -- not red-handed, but with glowing green fingers, by a new good hand washing test. ... > full story

New Lead For Autoimmune Disease From Chinese Medicine (June 8, 2009) -- A major challenge in treating autoimmune disorders has been suppressing inflammatory attacks on body tissues without generally suppressing immune function. Now, a drug from Chinese medicine shows potential for easing these disorders. In both mice and humans, it selectively inhibits development of Th17 cells, newly-recognized immune cells that were recently implicated in inflammatory bowel disease, rheumatoid arthritis, multiple sclerosis, type 1 diabetes, eczema and psoriasis. It also eased a multiple-sclerosis-like autoimmune disease in mice. ... > full story

Midge Keeps Invasive Mosquito In Check, Aiding Native Mosquitoes (June 8, 2009) -- The larvae of a tiny fly can influence the fate of native and invasive mosquitoes, with implications for human health. ... > full story

Stem Cell Protein Offers A New Cancer Target (June 8, 2009) -- Stem cell researchers have shown that a protein that keeps embryonic stem cells in their stem-like state, called LIN28, is also important in cancer. It offers a new target to attack, especially in resistant and hard-to-treat cases. ... > full story

New Center Aims To Improve Recovery Of Soldiers With Severe Injuries (June 8, 2009) -- When a soldier is wounded during combat, surgeons must focus on reducing infection and reconstructing damaged bone and tissues. Technologies that could improve the repair and regeneration processes are being developed in research laboratories across the country, but they are not being moved quickly enough into military trauma centers. Organizers of the recently established Georgia Tech Center for Advanced Bioengineering for Soldier Survivability want to change that. ... > full story

Asthma Rates And Where You Live (June 8, 2009) -- A new study shows how neighborhood characteristics play a significant role in childhood asthma. ... > full story

Fatty Foods -- Not Empty Stomach -- Fire Up Hunger Hormone (June 8, 2009) -- New research suggests that the hunger hormone ghrelin is activated by fats from the foods we eat -- not those made in the body -- in order to optimize nutrient metabolism and promote the storage of body fat. ... > full story

Brain Irradiation In Lung Cancer (June 8, 2009) -- Scientists have found that a course of radiation therapy to the brain after treatment for locally advanced non-small cell lung cancer reduced the risk of metastases to the brain within the first year after treatment. ... > full story

Skin Lesion Leads To More Cancer Types Than Once Believed (June 8, 2009) -- Dermatologists have found that sun-damaged rough patches on the skin known as actinic keratoses lead to more forms of skin cancer than previously thought. They also determined that lesions can become invisible and resurface over time. ... > full story

The Immune Response To Influenza Virus Isn't 'All Good' (June 8, 2009) -- How infection with influenza virus makes an individual sensitive to pneumonia-causing bacterial infections is clinically important but not well understood. New research now indicates that key mediators of the antiviral immune response initiated by infection with influenza virus impair the ability of mice to mount an adequate immune response to subsequent pneumonia-causing bacterial infection. These data might provide a new avenue of research for those developing ways to combat pneumonia following infection with influenza virus. ... > full story

3-D Structure Of Key Nuclear Pore Building Block Identified (June 8, 2009) -- New research into the molecular machine that filters all information traveling in or out of the cell nucleus contributes to an unfolding picture of cellular evolution that shows a common architecture for the nuclear pore complex and the vehicles that transport material between different parts of the cell. Scientists have for the first time glimpsed in three dimensions the subcomplex of the NPC that is its key building block. ... > full story

Risks Of Sharing Personal Genetic Information Online Need More Study, Bioethicists Say (June 8, 2009) -- With just 9 and a bit of saliva in a cup, consumers can learn about their genetic risk for diseases from breast cancer to diabetes. Now, thanks to social networking sites set up by personal genomics companies, they can also share that information with family, friends and even strangers on the Internet. Bonding over a similar genetic background sounds relatively harmless. But according to bioethicists sharing genetic information online raises a host of ethical questions. ... > full story

Scientists Uncover Mode Of Action Of Enzyme Linked With Several Types Of Cancer (June 8, 2009) -- Scientists have discovered a key mechanism used by cells to efficiently distribute chromosomes to new cells during cell multiplication. ... > full story

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