ScienceDaily Health Headlines
for Wednesday, July 6, 2011
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'Gifted' natural vitamin E tocotrienol protects brain against stroke in three ways (July 6, 2011) -- A natural form of vitamin E called alpha-tocotrienol can trigger production of a protein in the brain that clears toxins from nerve cells, preventing those cells from dying after a stroke, new research shows. This process is one of three mechanisms identified so far that this form of vitamin E uses to protect brain cells after a stroke, meaning that this natural substance might be more potent than drugs targeting single mechanisms for preventing stroke damage. ... > full story
Test for chromosome abnormalities sheds light on genetic origins of faulty eggs (July 6, 2011) -- Researchers are developing a new way to test a woman's egg for chromosome abnormalities that avoids the need to manipulate and biopsy the egg itself. The research may also shed light on the crucial role played by certain genes in the development of chromosome abnormalities that are a major cause of miscarriages and conditions such as Down's syndrome. ... > full story
Rose-colored beer goggles: Some drinkers believe social benefits of heavy drinking outweigh harms (July 6, 2011) -- Psychologists have shown that some people continue to drink heavily because of perceived positive effects, despite experiencing negative effects such as hangovers, fights and regrettable sexual situations. ... > full story
Twin study shows lifestyle, diet can significantly influence course of macular degeneration (July 6, 2011) -- Eating a diet high in vitamin D, as well as the nutrients betaine and methionine, might help reduce the risk of macular degeneration, according to new research. A study of identical twins from the US World War II Twin Registry also found that the more a person smoked, the higher their risk of developing macular degeneration. ... > full story
Dietary leucine may fight pre-diabetes, metabolic syndrome: Study shows improvements in animals with amino acid in diet (July 6, 2011) -- A new study suggests that adding the amino acid leucine to their diets may help those with pre-diabetes or metabolic syndrome. ... > full story
New method used to detect 20 drugs in cow, goat and human milk (July 6, 2011) -- Researchers have developed a method that makes it possible to simultaneously detect 20 pharmaceutical products in cow, goat and human milk. The samples of the three types of milk studied showed that they all contain anti-inflammatories, although the largest number of drugs was found in whole cows' milk. ... > full story
Voting in elections is stressful -- emotionally and physiologically (July 6, 2011) -- A new study has found that the level of cortisol -- the "stress hormone" -- in individuals immediately prior to casting a vote was significantly higher than in the same individuals in similar non-voting conditions. Researchers say this is a first step in understanding the link between biological stress and voting. ... > full story
Genome analysis will reveal how bacteria in our guts make themselves at home (July 5, 2011) -- Researchers have published the genome sequence of a gut bacterium to help understand how these organisms evolved their symbiotic relationships with their hosts. ... > full story
Fifty-year search for calcium channel ends: Cell's power generator depends on long-sought protein (July 5, 2011) -- After decades of failed efforts, researchers have discovered, through a combination of digital database mining and laboratory assays, the linchpin protein that drives mitochondria's calcium machinery. ... > full story
One skull + two brains = four objects in mind (July 5, 2011) -- A new study by neuroscientists could be put to immediate use in designing more effective cognitive therapy, smarter brain games, better "heads up displays," and much more. ... > full story
Preventive use of one form of natural vitamin E may reduce stroke damage (July 5, 2011) -- Ten weeks of preventive supplementation with a natural form of vitamin E called tocotrienol in dogs that later had strokes reduced overall brain tissue damage, prevented loss of neural connections and helped sustain blood flow in the animals' brains, a new study shows. ... > full story
Moving beyond embryonic stem cells: Encouragement on the horizon (July 5, 2011) -- For nearly two decades, the medical world and the American public have grappled with the lightning-rod topic of stem cells, in particular the controversy surrounding cells from human embryos. But when researchers four years ago successfully "reprogrammed" adult body cells to become stem cells, some thought the ethical debate was nearly over. Those redirected cells, known as induced pluripotent cells, or iPS cells, show potential as therapy. ... > full story
New research shows that we control our forgetfulness (July 5, 2011) -- Have you heard the saying “You only remember what you want to remember”? Now there is evidence that it may well be correct. New research shows that we can train ourselves to forget things. ... > full story
Findings in mice have potential to curb obesity and Type 2 diabetes (July 5, 2011) -- Scientists have uncovered a pathway in mice that allows white fat -- a contributor to obesity and Type 2 diabetes -- to burn calories in a way that's normally found in brown fat and muscle. ... > full story
New technology enables quick and scarless surgery for stomach tumors (July 5, 2011) -- Singapore scientists have pioneered a new surgery technology which enables quick and scar-less surgery for stomach tumors. The innovative operation can be done in a short day surgery which last a few minutes to an hour without the need for hospitalization. ... > full story
Behavioral treatment for migraines a cost-effective alternative to meds, study finds (July 5, 2011) -- A cost analysis of migraine treatments comparing pharmaceuticals to well-documented behavioral approaches such as relaxation training, hypnosis and biofeedback found behavioral treatments often come out cheaper, particularly after a year or more. ... > full story
Answers for treating obesity-related diseases may reside in fat tissue, study shows (July 5, 2011) -- Researchers have shown that the quality -- not just the quantity -- of adipose, or fat, tissue is a significant contributing factor in the development of inflammation and vascular disease in obese individuals. ... > full story
How many embryos to transfer? Swedish researchers develop new method to avoid twins while maintaining high live birth rates (July 5, 2011) -- Swedish researchers have, for the first time, developed a reliable way of deciding whether one or two embryos should be transferred during fertility treatment; the method simultaneously maintains a high chance of women giving birth to a live baby, while reducing the risk of twins. ... > full story
Taller women more likely to have twins after double embryo transfer (July 5, 2011) -- Taller women are more likely to have dizygotic (non-identical) twin pregnancies after double embryo transfer , researchers have found. ... > full story
Prenatal exposure to certain antidepressants may modestly increase risk of autism spectrum disorders, study suggests (July 5, 2011) -- Prenatal exposure to selective serotonin reuptake inhibitors, especially during the first trimester, is associated with a modest increase the risk of developing an autism spectrum disorder, according to a new study. ... > full story
Radiation protection in pediatric radiology (July 5, 2011) -- The risk to children’s health from X-ray radiation is easy to reduce without compromising diagnostic accuracy, according to new research. ... > full story
New technique advances bioprinting of cells (July 5, 2011) -- By extending pioneering acoustical work that applied sound waves to generate droplets from fluids, researchers have made encouraging preliminary findings at an early and crucial point in a stem cell's career known as embroid body formation. ... > full story
Patients with eating disorders have an elevated rate of death (July 5, 2011) -- Individuals who have eating disorders have an elevated mortality rate, especially those with anorexia nervosa, according to a meta-analysis of previous studies. ... > full story
Overlooked peptide reveals clues to causes of Alzheimer's disease (July 5, 2011) -- Researchers have shed light on the function of a little-studied amyloid peptide in promoting Alzheimer's disease (AD). Their surprising findings reveal that the peptide is more abundant, more neurotoxic and exhibits a higher propensity to aggregate than amyloidogenic agents studied in earlier research, suggesting a potential role in new approaches for preventing AD-causing amyloidosis. ... > full story
Massage eases low back pain in randomized controlled trial (July 5, 2011) -- Massage therapy helps ease chronic back pain and improve function, according to results of a randomized controlled trial. The first study to compare structural and relaxation (Swedish) massage, the trial found that both types of massage worked well, with few side effects. Massage helped people with back pain to function even after six months. They were more able to work, take care of themselves, and be active. ... > full story
Patients at small, isolated, rural hospitals in US more likely to receive lower quality of care (July 5, 2011) -- In the first national study to examine care at critical access hospitals (CAHs) in rural areas of the US, researchers found that CAHs have fewer clinical capabilities, lower quality of care, and worse patient outcomes compared with other hospitals. ... > full story
PET scan with [11C]erlotinib may provide noninvasive method to identify TKI-responsive lung tumors (July 5, 2011) -- A non-invasive PET imaging technique may identify lung cancers that respond best to tyrosine kinase inhibitors (TKIs), allowing doctors to better select patients for personalized therapy, according to new research. ... > full story
ALK rearrangement found in nearly 10 percent of patients in Lung Cancer Mutation Consortium (July 5, 2011) -- ALK rearrangement has been found in 9.6 percent of lung cancer patients tested in the Lung Cancer Mutation Consortium, and MET amplification in another 4.1 percent, reflecting how many patients might benefit from targeted therapies such as crizotinib, according to new research. ... > full story
High EGFR expression a predictor for improved survival with cetuximab plus chemotherapy (July 5, 2011) -- High epidermal growth factor receptor (EGFR) expression was a good predictor of which lung cancer patients would survive longer when cetuximab (Erbitux) was added to first-line chemotherapy, according to new research. ... > full story
People who suffer from antibiotic-resistant bacteria must be better addressed in health care, experts urge (July 5, 2011) -- Fear and confusion surrounding the diagnosis is often the result of suffering of antibiotic-resistant bacteria. Accurate information is crucial for these patients in order for them to handle their situation, yet that is the area where health care is lacking. Extended-Spectrum Beta-Lactamase (ESBL) is an enzyme which conveys resistance to most beta-lactam antibiotics. Infections are often difficult to treat due to general multiresistance and hospital care may be necessary even for non-serious infections. ... > full story
Smokers using varenicline to quit the habit at greater risk of heart attack, study suggests (July 4, 2011) -- Healthy, middle-aged smokers who take the most popular smoking cessation drug on the market have a 72 percent increased risk of being hospitalized with a heart attack or other serious heart problems compared to those taking a placebo, a new study suggests. ... > full story
New research addresses the major cause of pregnancy loss in IVF (July 4, 2011) -- A new study has addressed chromosomal imbalance in embryos, a condition that is currently the major cause of pregnancy loss in IVF. ... > full story
Length of parental military deployment associated with children's mental health diagnoses, study finds (July 4, 2011) -- Children with a parent who was deployed in the US military efforts Operation Iraqi Freedom and Operation Enduring Freedom for longer periods were more likely than children whose parents did not deploy to receive a diagnosis of a mental health problem, according to a new study. ... > full story
'Megapixel' DNA replication technology promises faster, more precise diagnostics (July 4, 2011) -- Researchers have developed a DNA measurement platform that sets dramatic new performance standards in the sensitivity and accuracy of sample screening. ... > full story
Pre-pregnancy diet affects the health of future offspring, mouse study suggests (July 4, 2011) -- Poor maternal diet before conception can result in offspring with reduced birth weights and increased risk of developing type II diabetes and obesity. In a new study, mice that were fed a low protein diet before conception (but had a normal diet during pregnancy) gave birth to offspring that had lower birth weights and increased insulin sensitivity. ... > full story
Could ovarian stimulation cause an increase in oocyte chromosome abnormalities? (July 4, 2011) -- Ovarian stimulation for IVF in women aged over 35 years may be leading to chromosome abnormalities resulting in pregnancy loss and birth defects such as Down syndrome, say members of a polar body screening study team. ... > full story
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