ScienceDaily Health Headlines
for Monday, June 6, 2011
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Obesity raises breast cancer survivors' risk of dying of the cancer, study finds (June 6, 2011) -- Women with a healthy body weight before and after diagnosis of breast cancer are more likely to survive the disease long term, a new study finds. ... > full story
Leucine deprivation proves deadly to malignant melanoma cells (June 6, 2011) -- Researchers have found that depriving human melanoma cells of the amino acid leucine can be lethal to the cells, suggesting a possible strategy for therapeutic intervention. The researchers observed the effect in melanoma cells with a mutation in the RAS/MEK signaling pathway -- the most common mutation found in the deadliest form of skin cancer. ... > full story
Is the description-experience gap in risky choice limited to rare events? (June 6, 2011) -- Researchers have found people confronted with risky choices respond differently when they rely on past experiences, rather than when they just focus on the odds of winning or losing. ... > full story
Surgery-related weight loss in men reverses testosterone deficiency, study finds (June 6, 2011) -- Low testosterone levels and symptoms of male sexual dysfunction due to obesity may be reversible with weight loss after bariatric surgery, a new study finds. ... > full story
Breast cancer surgery patients benefit from adding radiation therapy, study suggests (June 6, 2011) -- Additional radiation treatment improves disease free survival lessening the chance of cancer recurring in women with early breast cancer who have had breast conserving surgery (lumpectomy), interim results of a new study found. ... > full story
History shows that all-boy classrooms might actually benefit girls (June 6, 2011) -- New research is both a refutation of the idea that boys' academic disadvantages can be solved just by removing girls from the equation and a criticism of the present level of discourse. ... > full story
New generation asthma drug could improve metabolism, research suggests (June 5, 2011) -- Formoterol, a new generation asthma medication, shows great promise for improving fat and protein metabolism, say Australian researchers, who have tested this effect in a small sample of men. ... > full story
Flaxseed no cure for hot flashes during breast cancer or menopause, study finds (June 5, 2011) -- Flaxseed provides no benefit in easing hot flashes among breast cancer patients and postmenopausal women, according to a new study. ... > full story
Yoga helps older stroke victims improve balance, endurance, study suggests (June 5, 2011) -- A recent study that exposed older veterans with stroke to yoga produced promising results as researchers explore whether this popular mind-body practice can help stroke victims cope with their increased risk for painful and even deadly falls. A range of balance items measured by the Berg Balance Scale and Fullerton Advance Balance Scale improved by 17 percent and 34 percent respectively, participants had more confidence in their balance -- and they enjoyed the practice. ... > full story
Fighting cancer with cancer: Researchers find promising use for thyroid cancer gene (June 5, 2011) -- A mutant gene long thought to accelerate tumor growth in thyroid cancer patients actually inhibits the spread of malignant cells, showing promise for novel cancer therapies, a new study has found. ... > full story
Fetal programming of disease risk to next generation depends on parental gender (June 5, 2011) -- Overexposure to stress hormones in the womb can program the potential for adverse health effects in those children and the next generation, but effects vary depending on whether the mother or father transmits them, a new animal study suggests. ... > full story
Identifying toddlers at risk for autism (June 5, 2011) -- Parents and health care providers can't always tell whether toddlers display signs of autism syndrome disorder, but new research shows that a significant portion of at-risk children between 14-24 months can be identified through systematic screening by autism experts and providers working together. ... > full story
Exemestane reduces breast cancer in high-risk women, researchers show (June 5, 2011) -- A major announcement that the drug exemestane significantly reduces the risk of breast cancer in high-risk, postmenopausal women is the result of an international, randomized double-blind phase III clinical trial. ... > full story
Combination antibody therapy shows promise in metastatic melanoma (June 5, 2011) -- A duo of monoclonal antibodies -- ipilimumab and bevacizumab -- each targeting a prime survival strategy of tumors, can be safely administered and are potentially more effective than either drug alone for advanced, inoperable melanomas, according to a phase 1 clinical trial. ... > full story
People with disabilities: Experts call for changing how research is done (June 5, 2011) -- When it first passed 20 years ago, the American Disabilities Act offered hope for closing the health-disparities gap for people with disabilities, but differences still exist. Barring people with limiting physical issues from research studies may bear some of the blame, and a group of researchers wants to change that restriction. ... > full story
Similar one-year survival for catheter-based aortic valve replacement (AVR) and open AVR in high-risk patients (June 5, 2011) -- Less invasive catheter-based aortic valve replacement and open valve-replacement surgery have a similar one-year survival for patients at high risk for surgery, according to a recent study. ... > full story
Eating dirt can be good for the belly, researchers find (June 4, 2011) -- Most of us never considered eating the mud pies we made as kids, but for many people all over the world, dining on dirt is nothing out of the ordinary. Now an extensive meta-analysis helps explain why. ... > full story
When stressed, men charge ahead, women more careful, study finds (June 4, 2011) -- Stress causes men and women to respond differently to risky decision making, with men charging ahead for small rewards and women taking their time, according to a new study. Under stress, men and women also have different brain activation patterns during decision making. ... > full story
Scientists reactivate immune cells exhausted by chronic HIV (June 4, 2011) -- Scientists have demonstrated why certain immune cells chronically exposed to HIV shut down, and how they can be reactivated. ... > full story
Miniature ventilator may help COPD patients improve mobility (June 4, 2011) -- A miniature, easy-to-carry ventilation system with a simple nasal mask may help patients with chronic obstructive pulmonary disease (COPD) become more active, according to research conducted at medical centers in California and Utah. The compact design offers an attractive alternative to currently available larger, less comfortable ventilators and masks. ... > full story
Genetic mutation causing excessive hair growth discovered (June 4, 2011) -- Researchers have discovered a chromosomal mutation responsible for a very rare condition in which people grow excess hair all over their bodies. Investigators hope the finding ultimately will lead to new treatments for this and less severe forms of excessive hair growth as well as baldness. ... > full story
Inability to combat oxidative stress may trigger development of asthma (June 4, 2011) -- An impaired ability to handle oxidative stress that arises from exposure to secondhand smoke and other environmental triggers may contribute to the development of asthma, according to results obtained from the Shanghai Women's Health Asthma and Allergy Study. The results of the study suggest regulating the body's antioxidant defense system may play an important role in asthma prevention. ... > full story
Many cancer survivors can't shake pain, fatigue, insomnia, foggy brain, study finds (June 4, 2011) -- When people finish treatment for cancer, they want to bounce back to their former vital selves as quickly as possible. But a new study -- one of the largest survivor studies ever conducted -- surprisingly shows many survivors still suffer moderate to severe problems with pain, fatigue, sleep, memory and concentration three to five years after treatment has ended. ... > full story
Emergency department residents' attitudes favorable to pregnancy during residency, survey finds (June 4, 2011) -- The demands of a medical residency can make balancing a career and family a challenge. But the results of a survey of emergency department (ED) resident physicians' attitudes on pregnancy during residency may offer uplifting news. The survey of 541 residents from across the country found that 84 percent said it was acceptable for female residents to have children during residency and 82 percent said they would rearrange their schedule to help a pregnant colleague. ... > full story
New strain of MRSA discovered: Antibiotic resistant bacteria found in both humans and dairy cows (June 3, 2011) -- Scientists have identified a new strain of methicillin-resistant Staphylococcus aureus (MRSA) which occurs both in human and dairy cow populations. The study identified the new strain in milk from dairy cows while researching mastitis (a bacterial infection which occurs in the cows' udders). ... > full story
Understanding cancer energetics: Researchers solve mystery of Warburg effect (June 3, 2011) -- It's long been known that cancer cells eat a lot of sugar to stay alive. In fact, where normal, noncancerous cells generate energy from using some sugar and a lot of oxygen, cancerous cells use virtually no oxygen and a lot of sugar. Many genes have been implicated in this process, and now researchers have discovered that this so-called Warburg effect is controlled. ... > full story
Weight loss success in a 3-D virtual world (June 3, 2011) -- Participants in two weight-loss programs -- one at a health club, the other delivered in a virtual world -- lost similar amounts of weight and body fat, but the online contingent reported significantly greater gains in behaviors that could help them live healthier and leaner lives. ... > full story
How high-fat diet during pregnancy increases risk of stillbirth (June 3, 2011) -- Eating a high-fat diet during pregnancy increases the chance of stillbirth, according to new research. The new data show eating a typical American diet, which is high in fat, decreases blood flow from the mother to the placenta, the temporary organ that nourishes the unborn fetus. Prior to this study, exactly how a fatty diet contributes to stillbirth was unclear. ... > full story
Matching targeted therapies to tumor's specific gene mutations key to personalized cancer treatment (June 3, 2011) -- Customizing targeted therapies to each tumor's molecular characteristics, instead of a one-size-fits-all approach by tumor type, may be more effective for some types of cancer, according to researchers. ... > full story
Autism may have had advantages in humans' hunter-gatherer past, researcher believes (June 3, 2011) -- Though people with autism face many challenges because of their condition, they may have been capable hunter-gatherers in prehistoric times, according to a new paper. ... > full story
Mechanism in saliva production discovered (June 3, 2011) -- Researchers are one step closer to helping millions of people whose salivary glands no longer work because of disease or damage from treatment of diseases. ... > full story
Research reveals effectiveness of seizure treatments for children with autism (June 3, 2011) -- New research compares effectiveness of various drugs and diets as treatments for controlling seizes often experienced by children with autism. ... > full story
Letters from home may help prevent posttraumatic stress disorder in happily married soldiers (June 3, 2011) -- A new study finds that for active-duty male soldiers in the U.S. Army who are happily married, communicating frequently with one’s spouse through letters and emails during deployment may protect against the development of posttraumatic stress disorder (PTSD) symptoms after returning home. ... > full story
Experimental vaccine made from frozen immune cells shows promise for prostate cancer patients (June 3, 2011) -- Metastatic prostate cancer patients who received an investigational vaccine made from their own frozen immune cells lived 10 months longer than those not treated with it, according to new data. ... > full story
People with depression get stuck on bad thoughts, unable to turn their attention away, study suggests (June 3, 2011) -- We all have our ups and downs -- a fight with a friend, a divorce, the loss of a parent. But most of us get over it. Only some go on to develop major depression. Now, a new study suggests part of the reason may be that people with depression get stuck on bad thoughts because they’re unable to turn their attention away. ... > full story
Novel drug alleviates symptoms in Huntington's and Alzheimer's mice (June 3, 2011) -- Scientists have identified a drug candidate that diminishes the effects of both Alzheimer's disease and Huntington's disease in animal models, offering new hope for patients who currently lack any medications to halt the progression of these two debilitating illnesses. ... > full story
New bitter blocker discovered (June 3, 2011) -- Bitter taste often causes rejection that can interfere with food selection, nutrition and therapeutic compliance. This is especially true for children. Now, scientists have discovered a compound that inhibits bitterness by acting directly on a subset of bitter taste receptors. ... > full story
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