APS recognizes Intel high school finalists for experiments in physiology
... ligament tears in females result from an enhanced response to relaxin, a polypeptide hormone. Ms. Landstrom used porcine tissues (Achilles tendon strips) in an in vitro study done entirely in her school laboratory. Her paper was entitled, The Effects of the Relaxin Hormone on the Laxity of Male and Female A...Scientists discover key step in the development of nerve cells controlling autonomic functions
...ility to maintain a stable internal environment in response to internal or external influences. Problems asso... promote the repair of the adult nervous system in response to trauma or disease. The CIHR ( http://www.cihr-irsc.gc.ca/ ) is Canada's premier agency for health...New study in moths shows insects not entirely ruled by instinct
...rically argued that most insects have a programmed response to a variety of situations, such as knowing which ...ted to see how a moth's nervous system changed its response to an odor that was associated with food and how the moth responded behaviorally to that odor. The m...Report outlines steps needed to lessen smallpox threat
...ill from a viral disease may be as related to your response as to what the virus is doing to the cells it's infecting. Unfortunately with smallpox, because the virus was eradicated before modern immunology and modern human physiology knew how to address these questions, we don't know how the virus kills. "We ...Society for conservation biology conference
...r protected areas as animals and plants migrate in response to future climate change. An international group using projections of species distribution in 2050 under a mid-range warming scenario concludes that between 18 and 35 percent of all species are at risk of extinction globally. A different projection...Genetic mutation found that is major contributor to type 1 diabetes
...ity of the immune system, initiating an autoimmune response that eventually attacks the patient's own tissue. ... only to increase but directs the increased immune response at the insulin-producing beta cells of the pancreas. Dr. She credits many for the findings but espec...New lower-cost assay system equivalent to flow cytometry for accurate CD4+/CD8+ cell counts
...th antiretroviral drugs and to monitor a patient's response to treatment. In resource limited countries, the cost of commercially available CD4 diagnostic testing, whether by "gold standard" flow cytometry or less accurate manual microscopy-based methods, has remained very high. The Guava EasyCD4 system can ...Triple-vaccine strategy stimulates strong HIV-specific immune response in monkeys
...oach, the scientists sought to maximize the immune response to a truncated HIV gene called Gag and succeeded i... build on each other to generate a stronger immune response than might otherwise be possible. Many current vaccine development programs rely on human adenovirus...Brain serotonin enzyme finding might explain psychiatric disorders
...the gene a patient has could predict the patient's response to the drugs, Caron said. The brain is a network of billions of cells called neurons. When stimulated, neurons fire, sending a wave of electrical charge from one end to the other. To bridge the gap between nerves, the neurons release chemical neurotr...Researchers discover how worms' noses sense oxygen
...uzzling data they were obtaining about C. elegans' response to NO. Perhaps this enzyme was serving as an oxyge...to show that bordering and clumping was actually a response to high oxygen levels. Karow and Gray employed a custom MEMS (microelectromechanical systems) chamb...Access to DNA secrets yields better understanding of genes, possible tool for disease diagnosis
... carry out life's essential functions, from immune response and muscle contraction to cholesterol and hormone regulation. When DNA is highly compacted, like a closed accordion, it's not as accessible to transcription proteins, and cannot make RNA, said Dr. Harold "Skip" Garner, professor of biochemistry and ...'Trap' crop saves Texas cross timbers melon production
...on industry throughout the region was at risk. In response to the threat, Mitchell joined a multi-disciplinary task force that included Texas A&M System scientists, U.S. Department of Agriculture scientists at Lane, Okla., and Oklahoma State University researchers. Work proceeded on various fronts, as some t...'Weed from hell' found in Texas
...exas in a short period of time," he said. A rapid response team comprised of Extension range management, weed and forage specialists, U.S. Department of Agriculture pest survey personnel and a Texas Department of Agriculture entomologist, visited the Jasper farm soon after being alerted by Ricky Thompson, Ex...Spanish scientists develop powerful tool for exploration and integration of biological information
...idance of complex front-end database queries means response times are extremely fast. Connecting biomedical concepts While conventional keyword searches result in long and not always informative lists of abstracts, navigation along this gene-guided network allows for a stepwise and controlled exploration o...UCSD team determines cellular stress within body is critical
...al importance to cell growth and the body's immune response against infection. The findings may have implicat...stress and is also necessary for the body's immune response to invading pathogens. Osmotic stress occurs when the concentration of molecules in solution outside...Protein controls acid in cells by direct detection of volume changes, study finds
...ac cells after a heart attack activates in direct response to changes in a cell's volume, according to a new study by researchers at UT Southwestern Medical Center at Dallas. Their findings show that the protein NHE1, which is found in the membranes of nearly all cells and is especially active in cancer cell...JCI table of contents, 1 July 2004
...ated early in pregnancy the resulting inflammatory response caused embryo resorption. The researchers traced t...nal interface, but rather because the inflammatory response ultimately caused a decrease in progesterone, the hormone responsible for preparing the body for pre...ORNL adds three R&D 100s to DOE lab-leading total
...ument uses a 9-volt battery), less than one-second response time, stability, compact size, and low cost. SniffEx will have applications in counterterrorism, law enforcement, airport safety and humanitarian efforts such as landmine removal....A pregnant pause for unexpected interactions
...ated early in pregnancy the resulting inflammatory response caused embryo resorption. The researchers traced ...nal interface, but rather because the inflammatory response ultimately caused a decrease in progesterone, the hormone responsible for preparing the body for pre...Bacteria spill their guts to aid researchers in quest for new antibiotics
...e cell differs from conditions within the cell. In response to changing membrane tension, MscL alters its shape, opening and closing pores in the membrane. "Mechanosensitive channels such as this change their structure and act as an 'emergency release valve,' equalizing the conditions on both sides of the ce...