ScienceDaily: Top Health News

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• Decline in HIV deaths for most men, women by race/ethnicity, education, U.S. study finds
• Prenatal mercury exposure may be linked to risk of ADHD-related behaviors; Fish consumption may be linked to lower risk
• Health Canada's fast-tracked drug approvals can put public at risk, experts say
• Genetic mutation linked to psychiatric disease and obesity
• Scientists discover gene 'bursting' plays key role in protein production
• Maternal depression affects language development in babies
• Unexamined costs of rape revealed
• Can eating tomatoes lower the risk of stroke?
• Poorer lung health leads to age-related changes in brain function
• Biological mechanism that plays key role in early-onset dementia identified
• Why wine and tea pair so well with a meal: It's all in the mouthfeel
• Recovering 'bodyguard' cells in pancreas may restore insulin production in diabetics
• Bitter taste receptors regulate upper respiratory defense system
• Fresh blood not better for transfusions for premature infants, clinical trial shows
• Liquorice offers clue to cleaner medical implants
• Every third child incorrectly restrained in cars, study suggests
• First successful clinical trial to protect the brain from damage caused by stroke
• Nurses' assessment of hospital quality often on the button
• Gene variant linked with reduced lung cancer risk
• Whether mitochondrial diseases will be inherited is largely decided when the future mother herself is still an embryo
• Vitamin variants could combat cancer as scientists unravel B12 secrets
• Nobel Prize in Physiology or Medicine 2012 awarded for discovery that mature cells can be reprogrammed to become pluripotent
• Language learning makes the brain grow, Swedish study suggests
• Novel one-step system for restoring voice in throat cancer patients
• Nearly half of children with autism wander or 'bolt' from safe places
• Patient navigation leads to faster diagnosis for breast cancer

Decline in HIV deaths for most men, women by race/ethnicity, education, U.S. study finds Posted: 08 Oct 2012 01:18 PM PDT Overall death rates due to human immunodeficiency virus infection declined over time between 1993 and 2007 for most men and women by race/ethnicity and educational levels, with the largest absolute decreases for nonwhites, but rates remain high among blacks, according to a new U.S. study.

Prenatal mercury exposure may be linked to risk of ADHD-related behaviors; Fish consumption may be linked to lower risk Posted: 08 Oct 2012 01:18 PM PDT A study of children in the New Bedford, Mass., area suggests that low-level prenatal mercury exposure may be associated with a greater risk of attention-deficit/hyperactivity disorder (ADHD)-related behaviors and that fish consumption during pregnancy may be associated with a lower risk of these behaviors.

Health Canada's fast-tracked drug approvals can put public at risk, experts say Posted: 08 Oct 2012 01:18 PM PDT Drugs streamed into Health Canada's 180-day priority review process are more likely to be withdrawn from the market or earn a serious safety warning than those that undergo the 300-day standard review, new research shows. After accounting for other variables which may have caused this variation, the study concludes that the difference is likely due to the faster review time missing serious safety issues.

Genetic mutation linked to psychiatric disease and obesity Posted: 08 Oct 2012 01:18 PM PDT Researchers have identified a small region in the genome that conclusively plays a role in the development of psychiatric disease and obesity. The key lies in the genomic deletion of brain-derived neurotrophic factor, or BDNF, a nervous system growth factor that plays a critical role in brain development.

Scientists discover gene 'bursting' plays key role in protein production Posted: 08 Oct 2012 01:18 PM PDT Scientists have mapped the precise frequency by which genes get turned on across the human genome, providing new insight into the most fundamental of cellular processes -- and revealing new clues as to what happens when this process goes awry.

Maternal depression affects language development in babies Posted: 08 Oct 2012 01:18 PM PDT Maternal depression and a common class of antidepressants can alter a crucial period of language development in babies, according to a new study.

Unexamined costs of rape revealed Posted: 08 Oct 2012 01:17 PM PDT Evolutionary psychology researchers found significant negative consequences of rape and attempted sexual assault in 13 domains of psychological and social functioning, including self-esteem, social reputation, sexual desire and self-perceived mate value.

Can eating tomatoes lower the risk of stroke? Posted: 08 Oct 2012 01:17 PM PDT Eating tomatoes and tomato-based foods is associated with a lower risk of stroke, according to new research. Tomatoes are high in the antioxidant lycopene.

Poorer lung health leads to age-related changes in brain function Posted: 08 Oct 2012 11:42 AM PDT Keeping the lungs healthy could be an important way to retain thinking functions that relate to problem-solving and processing speed in one's later years, new research suggests.

Biological mechanism that plays key role in early-onset dementia identified Posted: 08 Oct 2012 10:42 AM PDT Using animal models, scientists have discovered how a protein deficiency may be linked to both brain injury and to frontotemporal dementia -- which is a form of early-onset dementia that is similar to Alzheimer's disease. These results lay the foundation for therapies that may one day benefit those who suffer from these debilitating and potentially deadly conditions.

Why wine and tea pair so well with a meal: It's all in the mouthfeel Posted: 08 Oct 2012 10:42 AM PDT Of course a nice glass of wine goes well with a hearty steak, and now researchers who study the way food feels in our mouths think they may understand why that is: The astringent wine and fatty meat are like the yin and yang of the food world, sitting on opposite ends of a sensory spectrum. The findings offer a whole new definition of the balanced meal. They also offer a new way of thinking about our eating habits, both good and bad.

Recovering 'bodyguard' cells in pancreas may restore insulin production in diabetics Posted: 08 Oct 2012 10:40 AM PDT T regulatory cells in the pancreatic lymph nodes play important role in diabetes onset and recovery of the insulin production in diabetic patients, say researchers.

Bitter taste receptors regulate upper respiratory defense system Posted: 08 Oct 2012 10:40 AM PDT A person's ability to taste certain bitter flavors is directly related to their ability to fight off upper respiratory tract infections, specifically chronic sinus infections.

Fresh blood not better for transfusions for premature infants, clinical trial shows Posted: 08 Oct 2012 06:16 AM PDT In a finding that runs counter to commonly held beliefs about fresh being better, a clinical trial shows that acutely ill premature babies who received fresher blood did not fare better than those who received the current standard of care. There was no difference between the two approaches with respect to major organ injury, mortality and infection.

Liquorice offers clue to cleaner medical implants Posted: 08 Oct 2012 06:15 AM PDT A new coating utilizing nanotechnology will allow surgeons to sterilize medical devices that contain biological components. A nanotech material containing an extract from liquorice can be used to sterilize and protect medical devices and implants which include biological components, and protects these functional bio-components during the sterilization process.

Every third child incorrectly restrained in cars, study suggests Posted: 08 Oct 2012 06:15 AM PDT Car accidents are the main cause of serious injury and death among children in Norway. A new study shows that 37 per cent of all children under 16 years are incorrectly restrained in the car. 23 per cent of children are so poorly restrained that a collision would have very serious consequences.

First successful clinical trial to protect the brain from damage caused by stroke Posted: 08 Oct 2012 06:14 AM PDT Scientists and clinicians have demonstrated that a neuroprotectant drug protects the human brain against the damaging effects of stroke. In patients who had ruptured brain aneurysm, which comprise a population of patients at very high risk of neurological damage, those treated with Tat-NR2B9c all had good neurological outcomes, whereas only 68% of those treated with placebo had good outcomes.

Nurses' assessment of hospital quality often on the button Posted: 08 Oct 2012 06:14 AM PDT If you want to know about hospital quality, ask a nurse.

Gene variant linked with reduced lung cancer risk Posted: 08 Oct 2012 05:31 AM PDT A variant in a gene involved with inflammation and the immune response is linked with a decreased risk of lung cancer. The results add to the growing body of literature implicating these processes in the development of lung cancer.

Whether mitochondrial diseases will be inherited is largely decided when the future mother herself is still an embryo Posted: 08 Oct 2012 05:30 AM PDT Malfunctioning of the mitochondria can lead to metabolic disorders in the person affected. Furthermore, mutations in the mitochondrial DNA (mtDNA) are causing muscle weakness, neurodegenerative diseases, cardiac disorders as well as diabetes, and are linked to the aging process. But how and when is the proportion of pathogenic mtDNA mutations that will be inherited determined? Researchers now shed light on the hereditary processes with a new model.

Vitamin variants could combat cancer as scientists unravel B12 secrets Posted: 08 Oct 2012 05:29 AM PDT In a development that may lead to new drugs to treat cancer, scientists have discovered the process by which a key vitamin (B12) is made in cells.

Nobel Prize in Physiology or Medicine 2012 awarded for discovery that mature cells can be reprogrammed to become pluripotent Posted: 08 Oct 2012 05:29 AM PDT The Nobel Prize in Physiology or Medicine 2012 has been awarded jointly to John B. Gurdon and Shinya Yamanaka for the discovery that mature cells can be reprogrammed to become pluripotent. The two scientists discovered that mature, specialized cells can be reprogrammed to become immature cells capable of developing into all tissues of the body. Their findings have revolutionized our understanding of how cells and organisms develop.

Language learning makes the brain grow, Swedish study suggests Posted: 08 Oct 2012 05:29 AM PDT At the Swedish Armed Forces Interpreter Academy, young recruits learn a new language at a very fast pace. By measuring their brains before and after the language training, a group of researchers has had an almost unique opportunity to observe what happens to the brain when we learn a new language in a short period of time.

Novel one-step system for restoring voice in throat cancer patients Posted: 08 Oct 2012 05:29 AM PDT Patients who have lost their voice box through disease such as throat cancer may be able to speak immediately after a procedure to create a small opening at the throat. A novel system cuts down a two-week duration before patients can speak, to about 10 minutes after the initial procedure.

Nearly half of children with autism wander or 'bolt' from safe places Posted: 08 Oct 2012 05:26 AM PDT Children with autism are four times more likely to wander than their unaffected siblings.

Patient navigation leads to faster diagnosis for breast cancer Posted: 08 Oct 2012 05:26 AM PDT A new study shows that breast cancer patients can reduce potentially dangerous delays in the identification of breast cancer with the assistance of patient navigation services. Patient navigation —- a service that helps patients overcome barriers to getting health care, including setting up appointments, dealing with health insurance, and helping with fears about cancer —- led to a nearly four-fold reduction in the time it took to diagnose a suspicious breast lump, the new study found.

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