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Biology RSS FeedsResearchers discover how key enzyme repairs sun-damaged DNA - Researchers have long known that humans lack a key enzyme -- one possessed by most of the animal kingdom and even plants -- that reverses severe sun damage. ...Feed Source: feeds.biologynews.net Scientists tap into Antarctic octopus venom - Australian and international researchers have collected venom from octopuses in Antarctica for the first time, significantly advancing our understanding of the properties of venom as a potential resource for drug-development.
... Scientists test Moreton Bay as coral 'lifeboat' - An international team of scientists has been exploring Moreton Bay, close to Brisbane, as a possible 'lifeboat' to save corals from the Great Barrier Reef at risk of extermination under climate change.
... Traveling microorganisms - Every day, millions of microorganisms reach Spain from the Sahara Desert and the Sahel region ? by flying. Louis Pasteur demonstrated back in 1861 that germs can move through the air, but it was only recently discovered that bacteria, funguses and viruses can travel thousands of kilometers stuck onto dust particles. Satellite images show clouds that come close to the size of the Iberian Peninsula. For the first time, the international team on the Ecosensor project, funded by the BBVA Foundation, have analyzed these traveling microorganisms using molecular biology techniques. As well as identifying the species, they have found that they colonize high-mountain lakes in the Sierra Nevada and the Pyrenees, and that the phenomenon is escalating with climate change.
... Valproic acid shown to halt vision loss in patients with retinitis pigmentosa - Researchers at the University of Massachusetts Medical School (UMMS) believe they may have found a new treatment for retinitis pigmentosa (RP), a severe neurodegenerative disease of the retina that ultimately results in blindness. One of the more common retinal degenerative diseases, RP is caused by the death of photoreceptor cells and affects 1 in 4,000 people in the United States. RP typically manifests in young adulthood as night blindness or a loss of peripheral vision and in many cases progresses to legal blindness by age 40.
... Brain scans may help guide career choice - General aptitude tests and specific mental ability tests are important tools for vocational guidance. Researchers are now asking whether performance on such tests is based on differences in brain structure, and if so, can brain scans be helpful in choosing a career? In a first step, researchers writing in the open access journal BMC Research Notes have investigated how well eight tests used in vocational guidance correlate to gray matter in areas throughout the brain.
... NIH-funded study finds early HAART during TB treatment boosts survival rate in co-infected people - A clinical trial in Cambodia has found it possible to prolong the survival of untreated HIV-infected adults with very weak immune systems and newly diagnosed tuberculosis (TB) by starting anti-HIV therapy two weeks after beginning TB treatment, rather than waiting eight weeks, as has been standard. This finding by scientists co-funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, and the French National Agency for Research on AIDS and Viral Hepatitis, brings physicians closer to optimizing the treatment of severely immunosuppressed individuals with HIV-TB co-infection. The findings were presented today at the XVIII International AIDS Conference in Vienna by principal investigators Francois-Xavier Blanc, M.D., Anne E. Goldfeld, M.D., and Sok Thim, M.D.
... Disease genes that followed the Silk Road identified - Scientists have identified key genes responsible for a severe inflammatory disease that has spread along the old silk trading routes from the Far East to the edge of Europe.
... By 'putting a ring on it,' microparticles can be captured - To trap and hold tiny microparticles, engineers at Harvard have "put a ring on it," using a silicon-based circular resonator to confine particles stably for up to several minutes.
... Brain training reverses age-related cognitive decline - Specialized brain training targeted at the regions of a rat's brain that process sound reversed many aspects of normal, age-related cognitive decline and improved the health of the brain cells, according to a new study from researchers at University of California, San Francisco.
... AIDS 2010 delegates and speakers unite in support of full funding for the Global Fund, the next milestone in drive for universal access - Scientists, practitioners and advocates from around the world today made a united call for global leaders to commit at least $US20 billion to the Global Fund to Fight AIDS, Tuberculosis and Malaria at its upcoming replenishment meeting in October. Because the level of replenishment committed at the meeting will determine the Global Fund's grant levels for 2011-2013, the meeting is widely viewed as the critical next step towards universal access to HIV prevention, treatment, care and support.
... International AIDS Society and partners recognize outstanding researchers from around the world at AIDS 2010 - The International AIDS Society (IAS) announced today the ten winners of four prestigious scientific awards, to be presented at plenary sessions during the XVIII International AIDS Conference (AIDS 2010). Presented by the IAS and partners, these awards recognize scientists involved in innovative HIV and AIDS research throughout the world. "The quality of work represented by the 2010 awardees is remarkable," said IAS President Julio Montaner. "The IAS hopes to draw the world's attention to these individuals and to their significant scientific accomplishments, as well as to the continued need for innovation in all of the major areas of HIV and AIDS research, represented by the six conference programme tracks."
... Novel microfluidic HIV test is quick and cheap - UC Davis biomedical engineer Prof. Alexander Revzin has developed a "lab on a chip" device for HIV testing. Revzin's microfluidic device uses antibodies to "capture" white blood cells called T cells that are affected by HIV. In addition to physically binding these cells the test detects the types and levels of inflammatory proteins (cytokines) released by the cells.
... Scientists identify nature's insect repellents - In the battle between insect predators and their prey, chemical signals called kairomones serve as an early-warning system. Pervasively emitted by the predators, the compounds are detected by their prey, and can even trigger adaptations, such a change in body size or armor, that help protect the prey. But as widespread as kairomones are in the insect world, their chemical identity has remained largely unknown. New research by Rockefeller University's Joel E. Cohen and colleagues at the University of Haifa in Israel has identified two compounds emitted by mosquito predators that make the mosquitoes less inclined to lay eggs in pools of water. The findings, published in the July issue of Ecology Letters, may provide new environmentally friendly tactics for repelling and controlling disease-carrying insects.
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