Non-invasive brain stimulation may help stroke survivors recover speech and language function, according to new research in the American Heart Association journal Stroke. Between 20 percent to 30 percent of stroke survivors have aphasia, a disorder that affects the ability to grasp language, read, write or speak. It's most often caused by strokes that occur in areas of the brain that control speech and language. "For decades, skilled speech and language therapy has been the only therapeutic option for stroke survivors with aphasia," said Alexander Thiel, M.D., study ...

South Asians (from India, Pakistan, Bangladesh) may have to exercise more than white Europeans to achieve the same levels of fitness and reduce their risk of diabetes. Researchers at the University of Glasgow have found that lower fitness levels in middle-aged men of South Asian origin are contributing to higher blood sugar levels and increased diabetes risk compared with white men. The research, published in Diabetologia, the journal of the European Association for the Study of Diabetes (EASD), suggests that physical activity guidelines may need to be changed to take ...

VIDEO: Researchers were able increase data flow through fiber optic cables by moving light through them in a spiral motion, rather than a straight line. Click here for more information. As rapidly increasing demand for bandwidth strains the Internet's capacity, a team of engineers has devised a new fiber optic technology that promises to increase bandwidth dramatically. The new technology could enable Internet providers to offer much greater connectivity – from decreased network ...

DURHAM, N.C. -- Children with more genetic risks for asthma are not only more likely to develop the condition at a young age, but they are also more likely to continue to suffer with asthma into adulthood. The finding reported by Duke University researchers is one of the latest to come from a 40-year longitudinal study of New Zealanders. "We've been able to look at how newly discovered genetic risks relate to the life course of asthma at an unprecedented level of resolution," said Daniel Belsky, a postdoctoral fellow at the Duke Institute for Genome Sciences & Policy ...

The findings are featured as the cover story of the June 28 edition of the journal Science. An international research team led by Ferran Garcia-Pichel, microbiologist and professor with ASU's School of Life Sciences, conducted continental-scale surveys of the microbial communities that live in soil crusts. The scientists collected crust samples from Oregon to New Mexico, and Utah to California and studied them by sequencing their microbial DNA. While there are thousands of microbe species in just one pinch of crust, two cyanobacteria —bacteria capable of photosynthesis ...

The authors say the drug "seems to reduce the risk of death and suicide by more than 60% compared with placebo" and suggest this review "reinforces lithium as an effective agent to reduce the risk of suicide in people with mood disorders." Mood disorders are a leading cause of global disability. The two main types are unipolar disorder (often called clinical depression) and bipolar disorder (often called manic depression). Both are serious, long term conditions involving extreme mood swings, but people with bipolar depression also experience episodes of mania or hypomania. ...

The results show that each 0.1 g per day or 0.1% energy per day increment of intake of n-3 polyunsaturated fatty acid (n-3 PUFA) derived from fish was associated with a 5% reduction in risk. To achieve this risk reduction, intake of oily fish such as salmon, tuna or sardines should be 1-2 portions per person per week. Breast cancer is one of the most common cancers, accounting for 23% of total cancer cases and 14% of cancer deaths in 2008. Studies suggest that a healthy diet and lifestyle is crucial for the prevention of breast cancer, and dietary fat is one of the most ...

The development of an easy to use, low cost method of detecting dengue virus in mosquitoes based on gold nanoparticles is reported in BioMed Central's open access journal Virology Journal. The assay is able to detect lower levels of the virus than current tests, and is easy to transport and use in remote regions. Half the world's population is at risk of Dengue virus infection – it infects 50-100 million people per year, approximately half a million of these require hospitalization and 2.5% (most of which are children) will die. It is one of the most dangerous viruses ...

Frontiers in Microbiology The genome of the endophytic bacterium H. frisingense GSF30T identifies diverse strategies in the Herbaspirillum genus to interact with plants Microbes whose habitat is inside other organisms, such as so-called "endophytic" bacteria that live inside plants, have evolved genes that enable them to overcome their host's defensive mechanisms. But once they have entered the host tissue, such microbes may actually benefit their host, for example, by activating genes that capture atmospheric nitrogen and turn it into natural fertilizer to promote ...

NEW YORK, NY (June 27, 2013) — A series of studies conducted by Randy Bruno, PhD, and Christine Constantinople, PhD, of Columbia University's Department of Neuroscience, topples convention by showing that sensory information travels to two places at once: not only to the brain's mid-layer (where most axons lead), but also directly to its deeper layers. The study appears in the June 28, 2013, edition of the journal Science. For decades, scientists have thought that sensory information is relayed from the skin, eyes, and ears to the thalamus and then processed in the ...

Human influences through global warming are likely to have played a role in Australia's recent "angry" hot summer, the hottest in Australia's observational record, new research has found. The research led by the University of Melbourne, has shown that global warming increased the chances of Australians experiencing record hot summers such as the summer of 2013, by more than five times. Lead author, Dr Sophie Lewis from the University of Melbourne and the ARC Centre of Excellence for Climate Systems Science said the study showed it was possible to say with more than ...

MANHATTAN, Kan. -- The world's food supply got a little more plentiful thanks to a scientific breakthrough. Eduard Akhunov, associate professor of plant pathology at Kansas State University, and his colleague, Jorge Dubcovsky from the University of California-Davis, led a research project that identified a gene that gives wheat plants resistance to one of the most deadly races of the wheat stem rust pathogen -- called Ug99 -- that was first discovered in Uganda in 1999. The discovery may help scientists develop new wheat varieties and strategies that protect the world's ...

WASHINGTON D.C., June 27, 2013 -- Indium tin oxide (ITO) has become a standard material in light-emitting diodes, flat panel plasma displays, electronic ink and other applications because of its high performance, moisture resistance, and capacity for being finely etched. But indium is also rare and expensive, and it requires a costly deposition process to make opto-electronic devices and makes for a brittle electrode. Replacing indium as the default material in transparent electrodes is a high priority for the electronics industry. Now, in a paper appearing in APL Materials, ...

Michael Graner, PhD, is a CU Cancer Center investigator and associate professor of neurosurgery at the CU School of Medicine. So when his 12-year-old Great Dane got sick, he knew what to do. "We got Star from the Mid-Atlantic Great Dane Rescue," Graner says. "She got her name because she was always smiling, like a movie star waiting for photos. She'd already been to so many shelters, we didn't want to change her name again and so we kept it." At 12, after many years with the Graners, Star had already reached about double the average lifespan for the breed. When she ...

WASHINGTON D.C., June 28, 2013 -- The search for thermoelectrics, exotic materials that convert heat directly into electricity, has received a boost from researchers at the California Institute of Technology and the University of Tokyo, who have found the best way to identify them. In the new open-access journal APL Materials, the team shows that a relatively simple technique called the "rigid band approximation" can predict a material's properties more accurately than a competing, more complicated method. "The rigid band approach still supplies the simple, predictive ...

Scientists have discovered a diverse multitude of microbes colonizing and thriving on flecks of plastic that have polluted the oceans—a vast new human-made flotilla of microbial communities that they have dubbed the "plastisphere." In a study recently published online in Environmental Science & Technology, the scientists say the plastisphere represents a novel ecological habitat in the ocean and raises a host of questions: How will it change environmental conditions for marine microbes, favoring some that compete with others? How will it change the overall ocean ecosystem ...

New Rochelle, NY, June 26, 2013—Everyone who climbs to high altitude will develop pulmonary hypertension, a temporary constriction of blood vessels that results in increasing strain on the right heart. It is a normal adaptive mechanism but if exaggerated can have serious consequences, resulting in life-threatening disorders and remodeling of the pulmonary circulation. Five mini-Review articles that comprise a Special Topic section in High Altitude Medicine & Biology, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers provide an up-to-date overview of the clinical ...

PITTSBURGH—Lying awake in bed plagues everyone occasionally, but for those with seasonal affective disorder, sleeplessness is routine. University of Pittsburgh researchers report in the Journal of Affective Disorders that individuals with seasonal affective disorder (SAD)—a winter depression that leads to loss of motivation and interest in daily activities—have misconceptions about their sleep habits similar to those of insomniacs. These findings open the door for treating seasonal affective disorder similar to the way doctors treat insomnia. Kathryn Roecklein, primary ...

AMHERST, Mass. – Reporting this month in Molecular Microbiology, Peter Chien and colleagues at the University of Massachusetts Amherst describe using a combination of biochemistry and mass spectrometry to "trap" scores of new candidate substrates of the protease ClpXP to reveal how protein degradation is critical to cell cycle progression and bacterial development. The new understanding could lead to identifying new antibiotic targets. As Chien (pronounced Chen) explains, to carry out fundamental life processes such as growing and dividing, cells must orchestrate, in ...

In stunning color, new biodiversity research from North Carolina State University maps out priority areas worldwide that hold the key to protecting vulnerable species and focusing conservation efforts. The research, published online in Proceedings of the National Academy of Sciences, pinpoints the highest global concentrations of mammals, amphibians and birds on a scale that's 100 times finer than previous assessments. The findings can be used to make the most of available conservation resources, said Dr. Clinton Jenkins, lead author and research scholar at NC State ...

A protein secreted with insulin travels through the bloodstream and accumulates in the brains of individuals with type 2 diabetes and dementia, in the same manner as the amyloid beta Αβ plaques that are associated with Alzheimer's disease, a study by researchers with the UC Davis Alzheimer's Disease Center has found. The study is the first to identify deposits of the protein, called amylin, in the brains of people with Alzheimer's disease, as well as combined deposits of amylin and plaques, suggesting that amylin is a second amyloid as well as a new biomarker ...

When faced with the choice of sacrificing time and energy for a loved one or taking the self-centered route, people's first impulse is to think of others, according to new research published in Psychological Science, a journal of the Association for Psychological Science. "For decades psychologists have assumed that the first impulse is selfish and that it takes self-control to behave in a pro-social manner," says lead researcher Francesca Righetti of VU University Amsterdam in the Netherlands. "We did not believe that this was true in every context, and especially not ...

Today, on National HIV Testing Day, the Rollins School of Public Health at Emory University launched its annual update of AIDSVu, including new interactive online maps that show the latest HIV prevalence data for 20 U.S. cities by ZIP code or census tract. AIDSVu also includes new city snapshots displaying HIV prevalence alongside various social determinants of health – such as poverty, lack of health insurance and educational attainment. AIDSVu -- the most detailed publicly available view of HIV prevalence in the United States -- is a compilation of interactive online ...

Understanding how the protein km23-1 enables in the spread of colon cancer may lead to new treatments for the disease, according to researchers at Penn State College of Medicine. Previous research shows that km23-1 is involved in the movement of cancer cells and in the control of specific proteins at the leading edge of moving cells. Kathleen Mulder, professor of biochemistry and molecular biology, who discovered the protein, now says km23-1 is used in the cancer cell's ability to move out of a tumor in the early stages of invasion. "km23-1 may be able to help in this ...

(SACRAMENTO, Calif.) — In what researchers say is the first public health study of the aerial mosquito spraying method to prevent West Nile virus, a UC Davis study analyzed emergency department records from Sacramento area hospitals during and immediately after aerial sprayings in the summer of 2005. Physicians and scientists from the university and from the California Department of Public Health found no increase in specific diagnoses that are considered most likely to be associated with pesticide exposure, including respiratory, gastrointestinal, skin, eye and neurological ...