Obese and overweight people are gaining weight rapidly in low-and middle-income countries while those who are severely undernourished are not experiencing similar weight gains, according to a University of Toronto and Harvard School of Public Health study. This growing divide may force governments in the developing world to care for people who fall dramatically short on their calorie intake while simultaneously treating health problems associated with obesity, including diabetes and heart disease. "One might think that as a country grows economically, the majority of ...

CAMBRIGDE, MA -- Epileptic seizures occur when neurons in the brain become excessively active. However, a new study from MIT neuroscientists suggests that some seizures may originate in non-neuronal cells known as glia, which were long believed to play a mere supporting role in brain function. In a study of fruit flies, the researchers identified a glial-cell mutation that makes the flies much more prone to epileptic seizures. Mutations in the gene, which influences glial cells' communication with neurons, appear to make neurons much more excitable. That excitability ...

Radiocarbon dates of tiny fossilised marine animals found in Antarctica's seabed sediments offer new clues about the recent rapid ice loss from the West Antarctic Ice Sheet and help scientists make better predictions about future sea-level rise. This region of the icy continent is thought to be vulnerable to regional climate warming and changes in ocean circulation. Reporting this month in the journal Geology a team of researchers from British Antarctic Survey (BAS), the Alfred Wegener Institute for Polar and Marine Research (AWI) and the University of Tromsø presents ...

NEW YORK (January 16, 2013) — A team of American and Chinese conservationists from the Wildlife Conservation Society and University of Montana recently counted nearly 1,000 wild yaks from a remote area of the Tibetan-Qinghai Plateau. The finding may indicate a comeback for this species, which was decimated by overhunting in the mid 20th century. The team counted 990 yaks in a rugged area called Hoh Xil – a national nature reserve nearly the size of West Virginia but devoid of people. The remote region lies in the mid-eastern Tibetan-Himalayan highlands, home to some ...

High-performance infrared cameras are crucial for civilian and military applications such as night-vision goggles and search-and-rescue operations. Existing cameras usually fall into one of two types: active cameras, which use an invisible infrared source to illuminate the scene, usually in the near or short-wavelength infrared; and passive cameras, which detect the thermal radiation given off by a warm object, typically in the mid- or long-wavelength infrared, without the need for any illumination. Both camera types have advantages and disadvantages in the field. Integrating ...

For the last ten years, theoretical physicists have shown that the intense connections generated between particles as established in the quantum law of 'entanglement' may hold the key to eventual teleportation of quantum information. Now, for the first time, researchers have worked out how entanglement could be 'recycled' to increase the efficiency of these connections. Published in the journal Physical Review Letters, the result could conceivably take us a step closer to sci-fi style teleportation in the future, although this research is purely theoretical in nature. ...

In an advance toward stain-proof, spill-proof clothing, protective garments and other products that shrug off virtually every liquid — from blood and ketchup to concentrated acids — scientists are reporting development of new "superomniphobic" surfaces. Their report on surfaces that display extreme repellency to two families of liquids — Newtonian and non-Newtonian liquids — appears in the Journal of the American Chemical Society. Anish Tuteja and colleagues point out that scientists have previously reported "omniphobic" surfaces, the term meaning that such surfaces can ...

This press release is available in French. Montreal, January 16, 2013 – Language mixing – using elements from two languages in the same sentence – is frequent among bilingual parents and could pose a challenge for vocabulary acquisition by one- and two-year-old children, according to a new study by Concordia University psychology professor Krista Byers-Heinlein. Those results are likely temporary, however, and are often counterbalanced by cognitive advantages afforded to children raised in a bilingual environment. With immigration and international mobility on the ...

Many mothers of newborns in neonatal intensive care units have difficulty finding private, quiet places in the hospital to express milk, according to a new study from the Frances Payne Bolton School of Nursing at Case Western Reserve University. The lack of privacy—if it causes mothers to miss feedings or makes them too timid to express milk—is an even greater health risk for low-weight premature newborns, because milk enriched with the mother's antibodies helps ward off infection and gastrointestinal problems. "The meaning of privacy might differ for mothers and the ...

Public relations professionals who have provided ethics counsel to senior management are at least as fervent about serving the public interest — sometimes even more so — as they are about their duty to their organizations, according to a Baylor University researcher. A new study of 30 senior public relations professionals, most of whom had served as an "organizational conscience," showed the individuals viewed themselves as an "independent voice" in the organization and not "mired by its perspective or politics," said study author Marlene S. Neill, Ph.D., a lecturer in ...

ANN ARBOR -- A review of the available evidence underscores the safety of the federal childhood immunization schedule, according to a report released today by the Institute of Medicine. University of Michigan population ecologist Pejman Rohani served on the 13-person committee that wrote the report. Roughly 90 percent of American children receive most childhood vaccines advised by the federal immunization schedule by the time they enter kindergarten, the committee noted. However, some parents choose to spread out their children's immunizations over a different time frame ...

WASHINGTON -- A review of the available evidence underscores the safety of the federal childhood immunization schedule, says a new report from the Institute of Medicine. Should signals indicate the need for investigation of the schedule, however, the report offers a framework for conducting safety research using existing or new data collection systems. Roughly 90 percent of American children receive most childhood vaccines advised by the federal immunization schedule by the time they enter kindergarten, noted the committee that wrote the report. However, some parents ...

Philadelphia, Pa. (January 16, 2013) – With the rapidly expanding use of brain and spinal cord stimulation therapy (neuromodulation), new "remote presence" technologies may help to meet the demand for experts to perform stimulator programming, reports a study in the January issue of Neurosurgery, official journal of the Congress of Neurological Surgeons. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health. The preliminary study by Dr. Ivar Mendez of Queen Elizabeth II Health Sciences Centre in Halifax, Nova Scotia, Canada, supports ...

PHILADELPHIA -- In the first study to examine discussion of drug side effects on Internet message boards, researchers from the Perelman School of Medicine at the University of Pennsylvania found that breast cancer survivors taking the commonly prescribed adjuvant therapy known as aromatase inhibitors (AIs) often detailed in these forums troublesome symptoms resulting from the drugs, and they were apt to report discontinuing the treatment or switching to a different drug in the same class. The findings are published online this week in the journal Pharmacoepidemiology and ...

Fashionable people may turn up their noses at jute — the cheap fiber used to make burlap, gunny sacks, twine and other common products — but new research is enhancing jute's appeal as an inexpensive, sustainable reinforcement for mortar and concrete. The study appears in ACS' journal Industrial & Engineering Chemistry Research. Subhasish B Majumder and colleagues note that there has been a resurgence of interest in using economical, sustainable natural fibers, rather than steel or synthetic fibers, to reinforce the cement compositions used to make concrete and mortar, ...

Scientists are reporting development of the first practical way to make large amounts of a promising new anti-cancer substance that kills cancer cells differently than existing medicines. Their article on synthesis of the substance, and tests demonstrating its effectiveness in the laboratory, appears in ACS' Journal of Medicinal Chemistry. Isamu Shiina and colleagues explain that the substance, AMF-26, showed promise against certain forms of cancer in laboratory studies, fostering excitement about its potential for development as a new anti-cancer drug. That excitement ...

Philadelphia, Pa. (January 16, 2012) – Efforts to correct false beliefs about health care reform may backfire, depending on individuals' political views and level of knowledge, suggests a study in the February issue of Medical Care. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health. In the study, more politically knowledgeable people with positive views of Sarah Palin were likely to harden their opposition to the Affordable Care Act (ACA) when presented with information debunking Palin's "death panel" claim, according to the study ...

Philadelphia, Pa. (January 16, 2013) – Researchers using sophisticated genetic testing techniques have identified a promising new biomarker for diagnosis of glioma—the most common type of malignant brain tumor, reports the January issue of Neurosurgery, official journal of the Congress of Neurological Surgeons. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health. The biomarker ELTD1 "may serve as an additional biomarker for gliomas in preclinical and clinical diagnosis of gliomas," according to the study by Rheal A. Towner of Oklahoma ...

LOS ANGELES (Jan. 16, 2013) – In a promising finding for epileptic patients suffering from persistent seizures known as status epilepticus, researchers reported today that new medication could help halt these devastating seizures. To do so, it would have to work directly to antagonize NMDA receptors, the predominant molecular device for controlling synaptic activity and memory function in the brain. "Despite the development of new medications to prevent seizures, status epilepticus remains a life-threatening condition that can cause extensive brain damage in the patients ...

RIVERSIDE, Calif. (www.ucr.edu) — An assistant professor at the University of California, Riverside's Bourns College of Engineering is using the teeth of a marine snail found off the coast of California to create less costly and more efficient nanoscale materials to improve solar cells and lithium-ion batteries. The most recent findings by David Kisailus, an assistant professor of chemical and environmental engineering, details how the teeth of chiton grow. The paper was published today (Jan. 16) in the journal Advanced Functional Materials. It was co-authored by several ...

Researchers of the Catalan Institute of Oncology (ICO) at the Bellvitge Biomedical Research Institute (IDIBELL) have developed and validated a new method to diagnose hereditary breast and ovarian cancer syndrome based on mass sequencing of BRCA1 and BRCA2 genes. The model is based on a genetic and bioinformatic analysis which has been proved very effective. The new protocol has been described in an article published in the European Journal of Human Genetics. In recent years, new advances in sequencing techniques have involved the development of new platforms for nucleic ...

Deborah L. Parker remembers the evening of April 4, 1968. In her rural Waverly Virginia home with no indoor plumbing, on the way to the laundromat with her mother, it seemed as if the world stopped. The headline of the evening news: Dr. Martin Luther King Jr. has been assassinated. What happens to the dream? Deborah wondered. She was poor, black, and a good student in a segregated Sussex County. Her mother was a single parent of four and they lived with her maternal grandparents in a shotgun style house on a wooded back road. But her mother was determined and her grandparents ...

SAN DIEGO – Women who have migraines with aura, which are often visual disturbances such as flashing lights, may be more likely to have problems with their heart and blood vessels, and those on newer contraceptives may be at higher risk for blood clots, according to two studies released today that will be presented at the American Academy of Neurology's 65th Annual Meeting in San Diego, March 16 to 23, 2013. The first study showed that migraine with aura is a strong contributor to the development of major cardiovascular events such as heart attack and stroke. The Women's ...

CHICAGO – In a study that included nearly 1.3 million Medicare beneficiaries who were either first-time enrollees or enrollees switching plans, researchers found a positive association between enrollment and publicly reported Medicare Advantage star ratings reflecting plan quality, according to a study appearing in the January 16 issue of JAMA. "To inform enrollment decisions and spur improvement in the Medicare Advantage marketplace, the U.S. Centers for Medicare & Medicaid Services (CMS) provides star ratings reflecting Medicare Advantage plan quality. A combined Part ...

PHILADELPHIA – Brain diseases associated with the misformed protein tau, including Alzheimer's disease and frontotemporal lobar degeneration with tau pathologies, are characterized by neurofibrillary tangles (NFTs) comprised of pathological tau filaments. Tau tangles are also found in progressive supranuclear palsy, cortical basal degeneration and other related tauopathies, including chronic traumatic encephalopathy due to repetitive traumatic brain injuries sustained in sports or on the battle field. By using synthetic fibrils made from pure recombinant protein, Penn ...