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Washington, DC – Researchers at Georgetown University Medical Center (GUMC) are voicing alarm that drugs to treat a wide variety of allergies, asthma and autoimmune diseases now in human clinical trials may errantly spur development of breast tumors.

Increased hand hygiene in primary schools is only a short-term measure in preventing infections such as H1N1 from spreading. Researchers writing in the open access journal, BMC Public Health, found stricter hand hygiene practices are difficult to maintain in a school setting.

School children may be twice as likely to catch H1N1 influenza as adults, as such health policies often stress hand hygiene among school children as one low cost intervention that may prevent influenza from spreading.

INDIANAPOLIS – A growing number of older adults are dying from dementia. In an editorial in the October 15, 2009 issue of the New England Journal of Medicine, Greg Sachs, M.D., professor of medicine and director of the Division of General Internal Medicine and Geriatrics at the Indiana University School of Medicine and a Regenstrief Institute investigator, notes that end-of-life care for most older adults with dementia has not changed in decades and urges that these individuals be provided far greater access to palliative care, the management of pain and other symptoms.

The National Science Foundation (NSF) congratulates the 2009 Nobel laureates, particularly those who have received NSF funding over the years: Jack W. Szostak, who shared the prize in physiology or medicine; Thomas A. Steitz, who shared the prize in chemistry; and Elinor Ostrom and Oliver E. Williamson who earned the Sveriges Riksbank Prize in economic sciences in memory of Alfred Nobel 2009.

When Professor Joel Levine's team genetically tweaked fruit flies so that they didn't produce certain pheromones, they triggered a sexual tsunami in their University of Toronto Mississauga laboratory. In fact, they produced bugs so irresistible that normal male fruit flies attempted to mate with pheromone-free males and even females from a different species—generally a no-no in the fruit fly dating scene.

Researchers at the University of Maryland School of Medicine Center for Vaccine Development (CVD) have charted the extreme genetic differences that occur over time in the most dangerous malaria parasite in the world. While there is no approved vaccine for malaria, various experimental vaccines are in development. The CVD study suggests that developing a broadly protective vaccine for malaria may be challenging because the parasite's genetic makeup is so variable, constantly changing.

University of California, Davis, researchers studying the 2009 H1N1 influenza virus, formerly referred to as "swine flu," have identified a group of immunologically important sites on the virus that are also present in seasonal flu viruses that have been circulating for years. These molecular sites appear to result in some level of immunity to the new virus in people who were exposed to the earlier influenza viruses.

LA JOLLA, CA—Although the human genome sequence faithfully lists (almost) every single DNA base of the roughly 3 billion bases that make up a human genome, it doesn't tell biologists much about how its function is regulated. Now, researchers at the Salk Institute provide the first detailed map of the human epigenome, the layer of genetic control beyond the regulation inherent in the sequence of the genes themselves.

While gripping, lifting or manipulating an object such as drinking from a cup or placing a book on a shelf is usually easy for most, it can be challenging for those with neurological diseases such as multiple sclerosis or Parkinson's, or for people who had a stroke. For them, the tight gripping can cause fatigue, making everyday tasks difficult.

After 15 years of research in the waters of the South Atlantic and Indian Oceans, scientists from the Wildlife Conservation Society, the American Museum of Natural History, and an international coalition of organizations have unveiled the largest genetic study of humpback whale populations ever conducted in the Southern Hemisphere.

ROCHESTER, Minn. -- Mayo Clinic surgical researchers are reporting a 93 percent success rate in recent animal tests of endoscopic repair of perforated ulcers. The goal is to advance the use of an endoscope -- which allows access to organs through natural openings, such as the mouth -- for a less invasive alternative to laparoscopic techniques (surgery performed through a small incision) or conventional surgery. They will present their findings from recent animal studies today at the American College of Surgeons 95th Clinical Congress in Chicago.

Researchers have established the conditions that foster formation of potentially dangerous levels of a toxic substance in the high-fructose corn syrup (HFCS) often fed to honey bees. Their study, which appears in ACS' bi-weekly Journal of Agricultural and Food Chemistry, could also help keep the substance out of soft drinks and dozens of other human foods that contain HFCS. The substance, hydroxymethylfurfural (HMF), forms mainly from heating fructose.

The "vegetable lamb" plant — once believed to bear fruit that ripened into a living baby sheep — produces substances that show promise in laboratory experiments as new treatments for osteoporosis, the bone-thinning disease. That's the conclusion of a new study in ACS' monthly Journal of Natural Products.

WINSTON-SALEM, N.C. – A newer, less expensive drug used to suppress the immune system and prevent organ rejection in kidney and pancreas transplant patients works just as well as its much more expensive counterpart, according to a new study by researchers at Wake Forest University Baptist Medical Center.

Such discoveries are vital in an era of skyrocketing health care costs and debate over health reform, said lead investigator Alan C. Farney, M.D., Ph.D., an associate professor of surgery in the Department of General Surgery, Transplantation Services.

Small classes in early grades improve test scores in later grades for students of all achievement levels, but low achievers get an extra boost. That's the finding of a study on the long-term effects of class size in the November issue of the American Journal of Education.