More research is needed to identify how athletes sustain brain injury from American football, and also to develop strategies to protect them, write experts in The BMJ today. Chronic traumatic encephalopathy (CTE) is a progressive neurodegenerative syndrome that can affect athletes. It is thought to result from concussion and brain injury following repeated blows to the head. But the topic of brain damage in football is controversial. The National Football League, for example, does not acknowledge any association between football and brain injury. CTE symptoms include ...

The Department of Health's interim evaluation of an alcohol industry pledge to remove one billion alcohol units from the market is flawed, argue researchers in The BMJ this week. Dr John Holmes and colleagues at the University of Sheffield's Alcohol Research Group say key assumptions within the analysis are "simplistic" and call for the report to be withdrawn and revised targets set. In 2012, the UK government announced an industry pledge to remove a billion units of alcohol from the market by December 2015, as part of the Public Health Responsibility Deal, the government's ...

Scientists from the University of Michigan have grown the first 3D mini lungs from stem cells. The study, published in eLife, compliments other developments in the field such as growing mainly 2D structures and building lung tissue from the scaffold of donated organs. The advantage of growing 3D structures is that their organisation bears greater similarity to the human lung. The scientists succeeded in growing structures resembling both the large proximal airways and the small distal airways Lead author Dr Jason Spence says: "We expected different cells types to ...

(Boston) - The marketing, prescribing and selling of testosterone and growth hormone as panaceas for aging-associated problems is disease mongering. So assert Thomas Perls, MD, MPH, FACP, a geriatrician at Boston Medical Center and professor of Geriatrics and Medicine at Boston University School of Medicine; and David Handelsman, MB BS, FRACP, PhD, professor of Reproductive Endocrinology and Andrology, director of the ANZAC Research Institute, University of Sydney and Andrology Department, Concord Hospital. Their editorial is published in this month's Journal of the American ...

WASHINGTON -- When we look at a known word, our brain sees it like a picture, not a group of letters needing to be processed. That's the finding from a Georgetown University Medical Center (GUMC) study published in the Journal of Neuroscience, which shows the brain learns words quickly by tuning neurons to respond to a complete word, not parts of it. Neurons respond differently to real words, such as turf, than to nonsense words, such as turt, showing that a small area of the brain is "holistically tuned" to recognize complete words, says the study's senior author, Maximilian ...

ROCHESTER, Minn. -- Researchers at Mayo Clinic have shown that it is possible to detect endometrial cancer using tumor DNA picked up by ordinary tampons. The new approach specifically examines DNA samples from vaginal secretions for the presence of chemical "off" switches -- known as methylation -- that can disable genes that normally keep cancer in check. The finding is a critical step toward a convenient and effective screening test for endometrial cancer, which is the most common gynecologic malignancy in the United States. The results are published in the journal ...

At any given moment, our sun emits a range of light waves far more expansive than what our eyes alone can see: from visible light to extreme ultraviolet to soft and hard X-rays. Different wavelengths can have different effects at Earth and, what's more, when observed and analyzed correctly, those wavelengths can provide scientists with information about events on the sun. In 2012 and 2013, a detector was launched on a sounding rocket for a 15 minute trip to look at a range of sunlight previously not well-observed: soft X-rays. Each wavelength of light from the sun inherently ...

Using data from orbiting observatories, including NASA's Spitzer Space Telescope, and ground-based facilities, an international team of astronomers has discovered an outburst from a star thought to be in the earliest phase of its development. The eruption, scientists say, reveals a sudden accumulation of gas and dust by an exceptionally young protostar known as HOPS 383. Stars form within collapsing fragments of cold gas clouds. As the cloud contracts under its own gravity, its central region becomes denser and hotter. By the end of this process, the collapsing fragment ...

Over the last 30 years, short sight, or myopia, has become a global health problem. The most dramatic rise has been in Singapore, Taiwan, China's cities and elsewhere in East Asia. Rates can be as high as 80-90 per cent among children leaving secondary schools in the region. As many as a fifth of them have severe myopia and so are at high risk of eye problems in later life. In Western countries rates are increasing; although not as rapidly as in East Asia. The Myopia Mystery The cause of myopia, and the means to prevent it, are unclear despite more than 150 years of ...

Bethesda, MD (March 24, 2015) -- A new guideline from the American Gastroenterological Association (AGA) changes clinical practice by recommending longer surveillance periods for patients with asymptomatic pancreatic cysts and new criteria that limits surgery to those who will receive the most benefit. It is estimated that more than 15 percent of patients who visit a doctor's office or hospital outpatient department will receive an MRI or other type of scan,2 and of those, about 15 percent will have incidental pancreatic cysts. Once detected, these cysts trigger anxiety ...

Washington, DC (March 24, 2015) - As congenital heart disease (CHD) treatment advances, children with these conditions are living into adulthood, and over time, they may need additional treatment. A new expert consensus paper released today by the Society for Cardiovascular Angiography and Interventions (SCAI), American Association for Thoracic Surgery (AATS), American College of Cardiology (ACC), and The Society of Thoracic Surgeons (STS) provides guidance on transcatheter pulmonic valve replacement, or tPVR, for children and adults who were previously treated for CHD. Pulmonary ...

DETROIT - Major League Baseball pitchers who underwent a second Tommy John surgery saw their performance decline and their career shortened, according to researchers at Henry Ford Hospital. In a retrospective, case-controlled study, researchers analyzed performance and longevity data of 33 pitchers who had a second surgery following the original elbow reconstruction between 1996 and 2012 and compared them with pitchers of similar age who had no prior Tommy John surgery. Key findings for pitchers after a second surgery: 65 percent returned to pitching at MLB level. On ...

This news release is available in French. Socio-economic inequalities between First Nations communities, and also between these communities and the non-Aboriginal population of Canada, determine the nature, the intensity and the direction of First Nations migration flows. Pursuing educational careers, finding work, and seeking better health and living conditions are the main reasons for First Nations migration. These are the findings of research by Marilyn Amorevieta-Gentil, Robert Bourbeau and Norbert Robitaille, of the University of Montreal, which were presented ...

DURHAM, N.C. -- For people infected with the human papilloma virus (HPV), the likelihood of clearing the infection and avoiding HPV-related cancer may depend less on the body's disease-fighting arsenal than has been generally assumed. A new study finds that the body's ability to defeat the virus may be largely due to unpredictable division patterns in HPV-infected stem cells, rather than the strength of the person's immune response. If the mathematical model behind the findings holds up, it could point to ways of tweaking the way infected cells divide in order to make ...

It's no surprise that some of the most celebrated leaders in the business world also happen to be self-promoting narcissists. New research from Brigham Young University's Marriott School of Management finds those strong characteristics are not such a bad thing--as long as those leaders temper their narcissism with a little humility now and then. "Just by practicing and displaying elements of humility, one can help disarm, counterbalance, or buffer the more toxic aspects of narcissism," said Bradley Owens, assistant professor of business ethics at BYU. "The outcome ...

Great leaders are often good communicators. In the process of communication, the relationship between leaders and their followers develops spontaneously according to new research from the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig and the State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research in Beijing. When a member becomes the group leader, the leader's brain activity in the left temporo-parietal junction, known as representing others' mental states, begins to synchronize with that in the ...

Adding two non-invasive imaging tests to traditional cardiovascular disease risk factor assessment more precisely predicts a healthy patient's future risk of heart attack, stroke, or premature death, according to a study led by Icahn School of Medicine at Mount Sinai and published in the March 24 edition of the Journal of the American College of Cardiology (JACC). "Using imaging tests to detect disease in carotid or coronary arteries before it causes symptoms can better identify healthy individuals at increased risk than our current, traditional risk assessment methods," ...

Numerous studies have documented racial differences in deaths from cancer among non-Hispanic whites and African Americans, but little has been known about survival outcomes for Asian Americans who have been diagnosed with cancer, until now. A new study from Quoc-Dien Trinh, MD and colleagues at Brigham and Women's Hospital (BWH) examined cancer patients in eight different Asian American subgroups and found their cancer-specific mortality (CSM) was substantially lower than that of non-Hispanic white patients. The findings are published in the March 20 issue of the Journal ...

Young adults who were raised in educated households develop higher cognitive ability than those who were brought up in less ideal environments, according to a new study conducted by researchers at Virginia Commonwealth University, the University of Virginia and Lund University in Sweden. While the study does not refute previous findings that DNA impacts intelligence, it does prove that environmental influences play a significant role in cognitive ability as measured in early adulthood. The study compared the cognitive ability - as measured by IQ - of 436 Swedish male ...

WINSTON-SALEM, N.C. - March 24, 2015 - Kidney transplantation outcomes from deceased African-American donors may improve through rapid testing for apolipoprotein L1 gene (APOL1) renal risk variants at the time of organ recovery, according to a new study led by researchers at Wake Forest Baptist Medical Center. Variation in the APOL1 gene is associated with up to 40 percent of all kidney diseases in African-Americans who undergo dialysis or kidney transplantation, and APOL1 kidney disease risk variants are only present on the chromosomes of individuals who possess recent ...

ROCHESTER, Minn. -- Researchers at Mayo Clinic have shown that it is possible to detect endometrial cancer using tumor DNA picked up by ordinary tampons. The new approach specifically examines DNA samples from vaginal secretions for the presence of chemical "off" switches -- known as methylation -- that can disable genes that normally keep cancer in check. The finding is a critical step toward a convenient and effective screening test for endometrial cancer, which is the most common gynecologic malignancy in the United States. The results are published in the journal ...

Machine-made products today are often of very good quality, and many are relatively cheaper than their handmade counterparts. But they are missing the key ingredient of "love," according to a new study in Journal of Marketing. "Handmade products might be perceived to contain and transmit the artisan's "essence" in the form of his or her love for the product in a way that machine-made products cannot," write authors Christoph Fuchs (Technische Universität München), Martin Schreier (WU Vienna University of Economics and Business), and Stijn M.J. van Osselaer ...

CORVALLIS, Ore. - Researchers at Oregon State University have discovered a group of genes in one species of snail that provide a natural resistance to the flatworm parasite that causes schistosomiasis, and opens the door to possible new drugs or ways to break the transmission cycle of this debilitating disease. Schistosomiasis infects more than 200 million people in more than 70 countries, and is most common in areas with poor sanitation. It can cause chronic, lifelong disability, beginning with gastrointestinal problems and sometimes leading to liver damage, kidney failure, ...

Legal drugs such as OxyContin now kill more people than heroin and cocaine combined. While awareness of the dangers of illegal drugs has increased, many teens are still ignorant of the significant physical danger posed by legally prescribed drugs, according to a new study in Journal of Public Policy & Marketing. "The CDC has classified the situation as an epidemic," write authors Richard Netemeyer (University of Virginia), Scot Burton (University of Arkansas), Barbara Delaney (Partnership for Drug Free Kids), and Gina Hijjawi (American Institutes for Research). "Prescription ...

MADISON, Wis. -- It's almost a rite of passage in physics and astronomy. Scientists spend years scrounging up money to build a fantastic new instrument. Then, when the long-awaited device finally approaches completion, the panic begins: How will they handle the torrent of data? That's the situation now, at least, with the Square Kilometer Array (SKA), a radio telescope planned for Africa and Australia that will have an unprecedented ability to deliver data -- lots of data points, with lots of details -- on the location and properties of stars, galaxies and giant clouds ...