High levels of arsenic in rice have been shown to be associated with elevated genetic damage in humans, a new study has found. Over the last few years, researchers have reported high concentrations of arsenic in several rice-growing regions around the world. Now, University of Manchester scientists, working in collaboration with scientists at CSIR-Indian Institute of Chemical Biology in Kolkata, have proven a link between rice containing high levels of arsenic and chromosomal damage, as measured by micronuclei* in urothelial cells, in humans consuming rice as a staple. The ...

ANN ARBOR, Mich. -- A new poll shows 82 percent of adults support banning smoking in cars when children under 13 are riding in the vehicle. According to the latest University of Michigan Mott Children's Hospital National Poll on Children's Health, support is strong for prohibiting drivers and passengers from smoking when kids are in the car. However, only seven states nationwide have laws banning the practice. Also in this month's poll, 87 percent of adults said they'd support a ban on smoking in businesses where children are allowed. Seventy-five percent expressed ...

This news release is available in French. Type 2 diabetes accounts for 90 % of cases of diabetes around the world, afflicting 2.5 million Canadians and costing over 15 billion dollars a year in Canada. It is a severe health condition which makes body cells incapable of taking up and using sugar. Dr. Alexey Pshezhetsky of the Sainte-Justine University Hospital Research Center, affiliated with the University of Montreal, has discovered that the resistance to insulin seen in type 2 diabetics is caused partly by the lack of a protein that has not previously been associated ...

PITTSBURGH—A family of molecules developed at Carnegie Mellon University to break down pollutants in water is one step closer to commercial use. Study results published online in the journal Green Chemistry show that the molecules, which are aimed at removing hazardous endocrine disruptors from water sources, aren't endocrine disruptors themselves as they proved to be non-toxic to developing zebrafish embryos. Created by Carnegie Mellon green chemist Terry Collins, the molecules, called TAML® activators, provide an environmentally friendly method for breaking down toxic ...

Researchers at Moffitt Cancer Center and Tianjin Medical University Cancer Institute and Hospital in China have discovered a gene expression signature that may lead to new immune therapies for lung cancer patients. They found that NF-κB, a protein complex known to promote tumor growth, may also have the ability to boost the immune system to eliminate cancerous cells before they harm, as well as promote antitumor responses. The study appeared in the June 3 issue of The Journal of Clinical Investigation. NF-κB is a protein complex that controls gene expression. ...

PITTSBURGH—The fingers of thousands of people who created sketches of Brad Pitt and Angelina Jolie on their iPhones can collectively guide and correct the drawing strokes of subsequent touchscreen users in an application created by researchers at Carnegie Mellon University and Microsoft Research. The app compensates for the "fat finger" problem associated with touchscreens, automatically correcting a person's drawing strokes while preserving the user's artistic style. "Our goal was to make it invisible to the user, so people wouldn't even be aware the correction is taking ...

CORVALLIS, Ore. – Laws that allow physician-assisted death in the Pacific Northwest have provisions to protect the rights of patients, doctors and even the state, but don't consider the professionals most often on the front lines of this divisive issue – hospice workers who provide end-of-life care. The existing system, a new analysis concludes, has evolved into a multitude of different and contradictory perspectives among hospice organizations and workers, who historically have opposed physician-assisted death but are now the professionals taking care of most of the ...

CHICAGO --- It turns out the love hormone oxytocin is two-faced. Oxytocin has long been known as the warm, fuzzy hormone that promotes feelings of love, social bonding and well-being. It's even being tested as an anti-anxiety drug. But new Northwestern Medicine® research shows oxytocin also can cause emotional pain, an entirely new, darker identity for the hormone. Oxytocin appears to be the reason stressful social situations, perhaps being bullied at school or tormented by a boss, reverberate long past the event and can trigger fear and anxiety in the future. That's ...

Putnam Valley, NY. -- When melatonin, a hormone secreted by the pineal gland, was used as a pre-treatment for mesenchymal stem cells (MSCs) prior to their transplantation into the brains of laboratory animals to repair damage from stroke, researchers in China found that the stem cells survived longer after transplantation. Previous studies had shown that 80 percent of transplanted MSCs died within 72 hours of transplantation. By contrast, the melatonin pre-treatment "greatly increased" cell survival, said the researchers. The study appears as an early e-publication for ...

NEW YORK - Wear your lucky Yankees jersey. Hold your breath. Expect nothing less than a World Series win. Certain routines are routine for millions of baseball playoff fans desperate to meet victory. In fact, a new study in the Journal of Consumer Research says fans are so deep in their traditions, they will drop brand loyalty-if it means a win. The study, written by Gita V. Johar of Columbia Business School and Eric J. Hamerman of Tulane University shows a sports fan will easily switch to a different product if the fan believes the new brand will bring about good luck ...

Putnam Valley, NY. -- The use of central nervous system fetal tissues derived from routine elective abortions to provide stem cells for transplantation procedures aimed at restoring damage done by neurodegenerative diseases is an established therapy. However, fetal tissue microbial contaminants have been known to cause brain infections in cell transplantation recipients. Now, a research team from Germany has developed a "washing" technique that decontaminates the fetal tissues from which stem cells are derived. The study appears as an early e-publication for the journal ...

Rochester, MN -- While there is an expectation that newer medical practices improve the standard of care, the history of medicine reveals many instances in which this has not been the case. Reversal of established medical practice occurs when new studies contradict current practice. Reporters may remember hormone replacement therapy as an example of medical reversal. A new analysis published in Mayo Clinic Proceedings documents 146 contemporary medical practices that have subsequently been reversed. A team of researchers led by Vinay Prasad, MD, Medical Oncology ...

WOODS HOLE, Mass.—How a group of animals can abandon sex, yet produce more than 460 species over evolutionary time, became a little less mysterious this week with the publication of the complete genome of a bdelloid rotifer (Adineta vaga) in the journal Nature. Rather than the standard way of using sexual reproduction to weed out harmful mutations to its DNA, this tiny aquatic animal appears to have adopted other strategies to maintain lineages over millennia that aren't burdened by genetic damage or killed off altogether, says David Mark Welch of the Marine Biological ...

Is binge eating a tell-tale sign of suicidal thoughts? According to a new study of African American girls, by Dr. Rashelle Musci and colleagues from the Bloomberg School of Public Health, Johns Hopkins University in the US, those who experience depressive and anxious symptoms are often dissatisfied with their bodies and more likely to display binge eating behaviors. These behaviors put them at higher risk for turning their emotions inward, in other words, displaying internalizing symptoms such as suicide. The study is published online in Springer's journal, Prevention Science. With ...

COLLEGE PARK, Md. – The benefits of race-conscious college admissions are only fully realized under certain conditions, concludes new University of Maryland-led research. To stimulate meaningful cross-racial engagement, incoming freshman classes should reflect both racial and socio-economic diversity, the researchers report. The peer-reviewed study appears in the June 2013 issue of the "American Educational Research Journal." The researchers say their study is the first to test empirically how socio-economic diversity affects racial interaction in colleges. "Social ...

PITTSBURGH—The age of 3D printing, when every object so created can be personalized, will increase the need for tags to keep track of everything. Happily, the same 3D printing process used to produce an object can simultaneously generate an internal, invisible tag, say scientists at Carnegie Mellon University and Microsoft Research. These internal tags, which the researchers have dubbed InfraStructs, can be read with an imaging system using terahertz (THz) radiation, which can safely penetrate many common materials. In proof-of-concept experiments, Karl Willis, a recent ...

Alexandria, VA - In a field like earth science, adventures in the outdoors are commonplace. As this summer's field season comes to a close and the lanterns are extinguished one last time, EARTH Magazine explores the ritual of field camp as geoscientists' rite of passage from classroom learner to a workforce-ready scientist. Earth science is just that, the study of the Earth. Thorough understanding of the surface expression of textbook concepts helps geoscientists provide protection and valuable resources to society. Thousands of U.S. college students participate in field ...

CORVALLIS, Ore. – A new study has found that heat waves are increasing in the western portions of the Pacific Northwest, but not the kind most people envision, with scorching hot days of temperatures reaching triple digits. These heat waves occur at night. Researchers documented 15 examples of "nighttime heat waves" from 1901 through 2009 and 10 of those have occurred since 1990. Five of them took place during a four-year period from 2006-09. And since the study was accepted for publication in the Journal of Applied Meteorology and Climatology, another nighttime heat ...

An integrative approach to treating chronic pain significantly reduces pain severity while improving mood and quality of life, according to a new study from the Bravewell Practice-Based Research Network (BraveNet) published last month in BioMed Central Complementary and Alternative Medicine journal. Researchers found a reduction in pain severity of more than 20 percent and a drop in pain interference of nearly 30 percent in patients after 24 weeks of integrative care. Significant improvements in mood, stress, quality of life, fatigue, sleep and well-being were also observed. "Chronic ...

EUGENE, Ore. -- (July 22, 2013) -- Conventional scientific wisdom has it that plants and other creatures have only lived on land for about 500 million years, and that landscapes of the early Earth were as barren as Mars. A new study, led by geologist Gregory J. Retallack of the University of Oregon, now has presented evidence for life on land that is four times as old -- at 2.2 billion years ago and almost half way back to the inception of the planet. That evidence, which is detailed in the September issue of the journal Precambrian Research, involves fossils the size ...

ANN ARBOR—In events that could exacerbate sea level rise over the coming decades, stretches of ice on the coasts of Antarctica and Greenland are at risk of rapidly cracking apart and falling into the ocean, according to new iceberg calving simulations from the University of Michigan. "If this starts to happen and we're right, we might be closer to the higher end of sea level rise estimates for the next 100 years," said Jeremy Bassis, assistant professor of atmospheric, oceanic and space sciences at the U-M College of Engineering, and first author of a paper on the new ...

Global warming five million years ago may have caused parts of Antarctica's large ice sheets to melt and sea levels to rise by approximately 20 metres, scientists report today in the journal Nature Geoscience. The researchers, from Imperial College London, and their academic partners studied mud samples to learn about ancient melting of the East Antarctic ice sheet. They discovered that melting took place repeatedly between five and three million years ago, during a geological period called Pliocene Epoch, which may have caused sea levels to rise approximately ten metres. Scientists ...

CAMBRIDGE, Mass. -- Painstaking new analysis of the genetic sequence of the X chromosome—long perceived as the "female" counterpart to the male-associated Y chromosome—reveals that large portions of the X have evolved to play a specialized role in sperm production. This surprising finding, reported by Whitehead Institute scientists in a paper published online this week in the journal Nature Genetics, is paired with another unexpected outcome: despite its reputation as the most stable chromosome of the genome, the X has actually been undergoing relatively swift change. ...

People with epilepsy are ten times more likely to die early, before their mid-fifties, compared with the general population, according to a 41 year study in Sweden published today in the Lancet and part-funded by the Wellcome Trust. The findings reveal a striking correlation between premature death and mental illness in these patients and people with epilepsy were four times more likely to have received a psychiatric diagnosis in their lifetime compared with the general population. The figures are considerably higher than previously thought and have important implications ...

Since Erwin Schroedinger's famous 1935 cat thought experiment, physicists around the globe have tried to create large scale systems to test how the rules of quantum mechanics apply to everyday objects. Researchers at the University of Calgary recently made a significant step forward in this direction by creating a large system that is in two substantially different states at the same time. Until this point, scientists had only managed to recreate quantum effects on much smaller scales. Professor Alex Lvovsky and associate professor Christoph Simon from the Physics and ...