Body

Bethesda, MD—Hair dye manufacturers are on notice: The cure for gray hair is coming. That's right, the need to cover up one of the classic signs of aging with chemical pigments will be a thing of the past thanks to a team of European researchers.

WASHINGTON – Fossil remains found by a George Washington University biologist in northwestern China have been identified as a new species of small theropod, or meat-eating, dinosaur.

The discovery was made by James Clark, the Ronald B. Weintraub Professor of Biology, in the Department of Biological Sciences of GW's Columbian College of Arts and Sciences. Dr. Clark, along with his then doctoral student Jonah Choiniere and a team of international researchers, found the dinosaur specimen in a remote region of Xinjiang in China in 2006.

Breathing oxygen... can be hazardous to your health?

Indeed, our bodies aren't perfect. They make mistakes, among them producing toxic chemicals, called oxidants, in cells. We fight these oxidants naturally, and by eating foods rich in antioxidants such as blueberries and dark chocolate.

All forms of life that breathe oxygen--even ones that can't be seen with the naked eye, such as bacteria--must fight oxidants to live.

Philadelphia, Pa. (May 3, 2012) – Teenagers with high blood pressure appear to have better psychological adjustment and enjoy higher quality of life than those with normal blood pressure, suggests a study in the May issue of Psychosomatic Medicine: Journal of Biobehavioral Medicine, the official journal of the American Psychosomatic Society.

TORONTO, ON —New research indicates that Mexican-Americans born in the United States who are aged 55 and over are significantly more likely than Mexican-American immigrants to report that they have substantial limitations in one or more basic physical activities such as walking, climbing stairs, reaching, lifting, or carrying. (30% versus 25%).

A Research Group headed by molecular biologist Andrea Pichler from the Max Planck Institute of Immunobiology and Epigenetics in Freiburg has made an important discovery in meiosis research. Pichler and her group have identified a new mechanism that plays an important role in meiosis.

Meiosis, also called reductional division, is a key process in sexual reproduction. It shuffles parental genetic material and thus guarantees genetic variety.

Using regional anesthesia instead of general anesthesia in patients with sleep apnea undergoing total joint replacement decreases major complications by 17%, according to a study published online, ahead of print, in the journal Regional Anesthesia and Pain Medicine. The Hospital for Special Surgery study is the first to provide evidence that an intervention during surgery can improve outcomes in patients with sleep apnea who often fare worse than patients without this condition. Currently, up to 25% of patients presenting for surgery in the United States have sleep apnea.

A Rice University laboratory's cagey strategy turns negatively charged carbon nanotubes into liquid crystals that could enhance the creation of fibers and films.

A map of avian influenza (H7N9) risk is presented in Biomed Central's open access journal Infectious Diseases of Poverty today. The map is comprised of bird migration patterns, and adding in estimations of poultry production and consumption, which are used to infer future risk and to advise on ways to prevent infection.

As of today, there have been 127 confirmed cases of H7N9 in mainland China with 27 deaths. A lack of information about the virus and its mode of transmission has led to public concerns that H7N9 could be a pandemic waiting to happen.

Researchers at Johns Hopkins have identified a gene that, when repressed in tumor cells, puts a halt to cell growth and a range of processes needed for tumors to enlarge and spread to distant sites. The researchers hope that this so-called "master regulator" gene may be the key to developing a new treatment for tumors resistant to current drugs.

MINNEAPOLIS/ST. PAUL (MAY 2, 2013) – New research out of the Lillehei Heart Institute at the University of Minnesota shows that by turning on just a single gene, Mesp1, different cell types including the heart, blood and muscle can be created from stem cells.

The study was published today in the journal Cell Stem Cell.

A common cancer pathway causing tumor growth is now being targeted by a number of new cancer drugs and shows promising results. A team of researchers at Case Western Reserve University School of Medicine have developed a novel method to disrupt this growth signaling pathway, with findings that suggest a new treatment for breast, colon, melanoma and other cancers.

Blood clots in the legs or lungs (deep vein thrombosis or pulmonary embolism) kill an American about every 5 minutes. Adopting seven simple lifestyle steps could help reduce your risk of these potentially deadly blood clots, according to research presented at the American Heart Association's Arteriosclerosis, Thrombosis and Vascular Biology 2013 Scientific Sessions.

The ductal carcinoma in situ (DCIS) Score quantifies the risk of ipsilateral breast event (IBE) and invasive IBE risk, complements both traditional clinical and pathologic factors, and helps provide a new clinical tool to improve the process of selecting individualized treatment for women with DCIS who meet the criteria, according to a study published May 2 in the Journal of the National Cancer Institute.

A team of researchers led by a Boston University Biomedical Engineer has developed a new joint lubricant that could bring longer lasting relief to millions of osteoarthritis sufferers. The new synthetic polymer supplements synovial fluid, the natural lubricant in joints, and works better than comparable treatments currently available.