Philadelphia, PA, December 2, 2014 - Persistent anxiety is one of the most common and distressing symptoms compromising mental health. Most of the research on the neurobiology of anxiety has focused on the generation of increased anxiety, i.e., the processes that "turn on" anxiety. But what if the problem lay with the "off switch" instead? In other words, the dysfunction could exist in the ability to diminish anxiety once it has begun. A new report in the current issue of Biological Psychiatry by researchers at the University of Wisconsin at Madison suggests that deficits ...

The Mediterranean diet has been consistently linked with health benefits, including reduced mortality and reduced risk of chronic diseases, such as heart disease. It is characterised by a high intake of vegetables, fruits, nuts, legumes (such as peas, beans and lentils), and (mainly unrefined) grains; a high intake of olive oil but a low intake of saturated fats; a moderately high intake of fish, a low intake of dairy products, meat and poultry; and regular but moderate intake of alcohol (specifically wine with meals). Telomeres sit on the end of chromosomes (like ...

An accompanying editorial says babies do best when mothers have a normal body weight before and during pregnancy. Women of childbearing age have a high prevalence of overweight and obesity. Previous analyses suggest that maternal obesity (body mass index (BMI) of 30 or over) is associated with increased risk of infant mortality, but results have not been consistent. So a team of researchers based in Sweden and the USA decided to test the theory that maternal overweight and obesity are associated with infant mortality by analysing over 1.8 million singleton births ...

Now come targets for six other conditions, including diabetes coronary heart disease, asthma and depression, writes Dr Martin Brunet, a GP in Surrey. "But the data on which they are based are flawed, and the approach incentivises potentially harmful overdiagnosis," he argues. Every practice in England has been told its diagnosis rate for each condition, estimated from practice data and the expected prevalence, he explains. The intention is to exert pressure on general practitioners to increase diagnosis rates, but he believes the principles behind such a policy need ...

Boston, MA--The Mediterranean diet has been consistently linked with an array of health benefits, including decreased risk of chronic disease and cancer. Until now, no previous studies have examined whether adherence to this diet is associated with longer telomere length, a biomarker of aging. Researchers at Brigham and Women's Hospital (BWH) have found that greater adherence to the Mediterranean diet was associated with longer telomeres. These findings are published online in The BMJ on December 2, 2014. Telomeres, biomarkers of aging, are repetitive DNA sequences at ...

Remarkable improvements in cancer survival mean that half of all people diagnosed with cancer today (2010-11) in England and Wales are expected to survive from their cancer for at least 10 years, compared to just a quarter of people diagnosed 40 years ago (1971-72), according to a new index of survival for all cancers combined*, published in The Lancet. However, although some cancers have a good prognosis, the outlook for others remains extremely poor. For example, while 98% of men with testicular cancer survive from their cancer for at least a decade after diagnosis, ...

A new study out today in the Journal of Neuroscience shows that traumatic brain injury can disrupt the function of the brain's waste removal system. When this occurs, toxic proteins may accumulate in the brain, setting the stage for the onset of neurodegenerative diseases such as Alzheimer's and chronic traumatic encephalopathy. "We know that traumatic brain injury early in life is a risk factor for the early development of dementia in the decades that follow," said Maiken Nedergaard, M.D., D.M.Sc., co-director of the University of Rochester Center for Translational ...

A group of researchers tested whether monkeys show a common human bias: the tendency to confuse the price of a good with its quality. Previous studies have shown that humans think wine labeled with an expensive price tag tastes better than the same wine labeled with a cheaper price tag. In other studies, people thought a pain killer worked better when they paid a higher price for it. "We know that capuchin monkeys share a number of our own economic biases. Our previous work has shown that monkeys are loss averse, irrational when it comes to dealing with risk, and even ...

In a new study published today in the journal Frontiers in Neurology, a team of researchers led by the University of Surrey, have identified a rogue protein in multiple sclerosis, which attacks the body's central nervous system. Researchers believe this finding could pave the way for better understanding of multiple sclerosis and new treatments against neurodegenerative diseases. Scientists have previously known that rogue proteins cause brain damage in other diseases of the brain such as Alzheimer's, Parkinson's and Creutzfeldt-Jakob disease. In this study, scientists ...

Although some guidelines recommend use of bisphosphonates (a class of drugs used to strengthen bone) for men on androgen deprivation therapy, an analysis finds that prescriptions for these drugs remains low, even for those men at high risk of subsequent fractures, according to a study in the December 3 issue of JAMA. Androgen deprivation therapy (ADT) is an effective, widely used therapy for men with prostate cancer. Adverse effects include bone loss and increased fracture risk. Canadian guidelines recommended bisphosphonate use in men with osteoporosis or fragility ...

In at least one respect, Capuchin monkeys are smarter than humans -- they don't assume a higher price tag means better quality, according to a new Yale study appearing in the open-access journal Frontiers in Psychology. People consistently tend to confuse the price of a good with its quality. For instance, one study showed that people think a wine labeled with an expensive price tag tastes better than the same wine labeled with a cheaper price tag. In other studies, people thought a painkiller worked better when they paid a higher price for it. The Yale study shows ...

Irvine, Calif., Dec. 2, 2014 - A comprehensive, 21-year analysis of the fastest-melting region of Antarctica has found that the melt rate of glaciers there has tripled during the last decade. The glaciers in the Amundsen Sea Embayment in West Antarctica are hemorrhaging ice faster than any other part of Antarctica and are the most significant Antarctic contributors to sea level rise. This study is the first to evaluate and reconcile observations from four different measurement techniques to produce an authoritative estimate of the amount and the rate of loss over the ...

ARGONNE, Ill. ― A team of researchers from the U.S. Department of Energy's Argonne National Laboratory and Ohio University have devised a powerful technique that simultaneously resolves the chemical characterization and topography of nanoscale materials down to the height of a single atom. The technique combines synchrotron X-rays (SX) and scanning tunneling microscopy (STM). In experiments, the researchers used SX as a probe and a nanofabricated smart tip of a STM as a detector. Using this technique, researchers detected the chemical fingerprint of individual ...

West Orange, NJ. December 2, 2014. Stroke researchers have found that the presence of frontal lesions predicts better functional improvement in individuals with spatial neglect who received prism adaptation therapy. "Integrity of medial temporal structures may predict better improvement of spatial neglect with prism adaptation treatment" (doi: 10.1007/s11682-012-9200-5) was published in September in the Neuroimaging and Rehabilitation Special Issue of Brain Imaging & Behavior. The authors are Peii Chen, PhD, Priyanka Shah, and A.M. Barrett, MD, of Kessler Foundation, Kelly ...

To arrange for an interview with a researcher, please contact the Communications staff member identified at the end of each tip. For more information on ORNL and its research and development activities, please refer to one of our media contacts. If you have a general media-related question or comment, you can send it to news@ornl.gov. IMAGING - Clearer brain scans ... A clever signal noise reduction strategy developed by a team that includes Oak Ridge National Laboratory's Ben Lawrie could dramatically improve brain imaging. By using quantum correlated beams of light, ...

New Rochelle, NY, December 2, 2014--A study of active duty U.S. Marines who suffered a recent or previous concussion(s) examined whether persistent post-concussive symptoms (PPCS) and lingering effects on cognitive function are due to concussion-related brain trauma or emotional distress. The results are different for a recent concussion compared to a history of multiple concussions, according to the study published in Journal of Neurotrauma, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available Open Access on the Journal of Neurotrauma ...

DURHAM, N.H. - Environmentalists dispirited by the Republicans' dominance of the recent midterm elections can take heart: non-Tea Party Republicans' views on science and environmental issues are closer to those of Independents than to Tea Party supporters. That's the primary finding of new research by University of New Hampshire sociologists, published this week in the journal Environmental Politics. "Across a range of science and environmental issues, non-Tea Party Republicans are more similar to Independents than they are to Tea Party supporters, and those divisions ...

Witnessing violence by parents or a parent's intimate partner can trigger a chain of negative behaviors in some children that follows them from preschool to kindergarten and beyond, according to researchers at Case Western Reserve University. But girls and boys can be affected differently, researchers concluded. While girls tend to internalize their exposure to such violence, boys are more inclined to act out aggressively, said Megan R. Holmes, PhD, MSW, assistant professor at the Jack, Joseph and Morton Mandel School of Applied Social Sciences at Case Western Reserve ...

The Valle de Aguán spiny-tailed iguana is a critically endangered species found in Honduras. A recent survey of people living in the region shows that, although residents are aware of the endangered status of the species, the iguana continues to be hunted for food. Of particular concern is the preference for the consumption of female iguanas that are gravid (carrying eggs in their body). "In this study we worked to gain a better understanding of how humans are harvesting the species for food," said Stesha Pasachnik, Ph.D., a lead researcher on the study and ...

LA JOLLA, CA - December 1, 2014 - Researchers can now explore viruses, bacteria and components of the human body in more detail than ever before with software developed at The Scripps Research Institute (TSRI). In a study published December 1 in the journal Nature Methods, the researchers demonstrated how the software, called cellPACK, can be used to model viruses such as HIV. "We hope to ultimately increase scientists' ability to target any disease," said Art Olson, professor and Anderson Research Chair at TSRI who is senior author of the new study. Putting cellPACK ...

PROVIDENCE, R.I. [Brown University] -- If decades of effort to bring more underrepresented minority students into science, technology, engineering and mathematics (STEM) fields were considered a grand chemistry experiment, then the modest results would suggest that while the formula may not be wrong, it may well be incomplete, according to a new article in the journal CBE-Life Sciences Education. "I don't necessarily want to say that we've been doing it wrong all along, it's just that there are other ideas we can bring in," said lead author Andrew G.Campbell, a Brown ...

West Orange, NJ. December 1, 2014. Kessler Foundation researchers have authored a new article that provides insight into the variable impact of traumatic brain injury (TBI) on long-term memory. The article, "Working memory capacity links cognitive reserve with long-term memory in moderate to severe TBI: a translational approach," was epublished ahead of print on October 7 in the Journal of Neurology (10.1007/s00415-014-7523-4). The authors are Joshua Sandry, PhD, John DeLuca, PhD, and Nancy Chiaravalloti, PhD, of Kessler Foundation. This study was supported by grants ...

A new method for determining lung cancer risk could more efficiently identify individuals for annual screening and catch more cancers early, according to a study published in this week's PLOS Medicine. The study, conducted by Martin Tammemägi of Brock University, Canada, and colleagues, evaluates a lung cancer risk prediction model and identifies a risk threshold for selecting individuals for annual lung cancer screening. Computed Tomography (CT) screening can identify lung tumors while they are still treatable, and the US National Lung Screening Trial (NLST) found ...

PITTSBURGH--Psychiatric disorders -- including autism -- are characterized and diagnosed based on a clinical assessment of verbal and physical behavior. However, brain imaging and cognitive neuroscience are poised to provide a powerful advanced new tool. Carnegie Mellon University researchers have created brain-reading techniques to use neural representations of social thoughts to predict autism diagnoses with 97 percent accuracy. This establishes the first biologically based diagnostic tool that measures a person's thoughts to detect the disorder that affects many children ...

People could be putting their lives at risk by dismissing potential warning signs of cancer as less serious symptoms, according to a Cancer Research UK-funded study* published in PLOS ONE today (Tuesday). More than half (53 per cent) of 1,700** people who completed a health questionnaire said they had experienced at least one red-flag cancer 'alarm' symptom during the previous three months***. But only two per cent of them thought that cancer was a possible cause. Researchers sent the questionnaire listing 17 symptoms**** - including 10 widely-publicised potential cancer ...