DNA size a crucial factor in genetic mutations, study finds
...ssues, so we're interested now in keeping the size constant and changing the shape,'' Kool adds....Study provides insight into cellular defenses against genetic mutation
...tanding of how human cells protect themselves from constant and potentially destructive changes in gene expression. According to an article published in this month's Nature Structural & Molecular Biology, the research is important because the protection itself can contribute to disease, and the ability to sid...Dietary fat intake linked to dry eye syndrome in women
...loss of vision. Victims can experience symptoms so constant and severe that reading, driving, working and participating in other vision-related activities of daily life are difficult or impossible. In this study, the researchers report the following specific findings: Women with the highest levels of ome...Scientists learn to predict protein-stabilizing ability of small molecules
...nfold -- they're not very stable, and there's this constant pressure on them to unfold -- is a major goal of biomedical science. What we've done is shown that we can calculate how osmolytes will influence the stability of different proteins, and we've also determined how different parts of the proteins intera...Satellite technology allows scientists to track warm sharks in cold polar seas
...in the wilds of an Alaska fjord chasing herring in constant darkness." As they move farther south, the sharks spend more time in deeper water, sometimes diving about a half-mile below sea level to avoid warmer temperatures at the surface. The capacity to summer in the plankton-rich seas of the temperate north...The brain needs the middle ear to track depth
...fesaver. But scientists do not understand how such constant updating of depth and distance takes place, suspecting that the brain receives information not just from the eye but also from the motion-detecting vestibular system in the middle ear. In studies with monkeys reported in the October 6, 2005, issue of...El Carmen the first wilderness designation in Latin America
...een able to flourish. After thousands of years of constant use of natural resources, very few places have remained unmarked by the human footprint: only the deep canyons of the sierras like Sierra de Carmen have been left in pristine condition. In the last 10 years, the Mexican government has taken a signifi...Study offers clues to origins of autoimmunity
...s showed, however, that self-reactive B cells need constant stimulation by their antigen to remain anergic, and that removing the antigen allows them to regain their normal, ready state. The researchers suggest that an active infection could draw a self-reactive B cell to a lymphoid organ, such as the tonsil...Preserving a 460 year old wreck
...it in a stable climate. It is hoped that keeping a constant low humidity of 50-55% without variations of temperature will stop changes in sulphur speciation. To maintain a stable microclimate within the wood structure a surface coating offers a possible solution, although the effectiveness of this approach ha...Temperature regulates circadian clock in zebrafish
...ne expression even after the cells were exposed to constant temperature. Acute temperature shifts can also trigger significant changes in clock gene expression (transcript levels of per4 and cry3 dropped after a temperature increase and spiked after a temperature decrease; cry2 showed the opposite response)--...Hanging baskets of sex and death help fruit growers
...rve for an extended period and remove the need for constant reapplication In this Defra funded project the researchers have already tested the effect of a single dispenser which alone infected 5% of all the moths found over a 1 hectare site. That early test helped them maximize the best virus formulation, an...Scavenger cells could be key to treating HIV-related dementia
...he brain, attacking macrophages migrate there in a constant stream, causing harmful inflammation. Nearly 15 percent of HIV patients develop dementia as their disease progresses. But understanding the routes macrophage cells take in the brain could help researchers find ways to block the migration and prevent ...Key regulator of blood glucose levels discovered
...t burner. But even during sleep, our brain needs a constant supply of glucose to function properly. For that reason, our body actually manufactures glucose during sleep or when we are fasting. That process, called gluconeogenesis, is carried out mainly in the liver. Insulin normally shuts down the ability of ...UT Southwestern researchers develop screening test for cells that activate immune system
... those that activate dendritic cells, which are on constant recon patrol throughout the body to scout out cancerous or infected cells and alert the immune system. "Our assay is unique from other conventional ones in its sensitivity and cost- and time-efficiency," said Dr. Akira Takashima, professor of dermato...Scientists must offer solutions for conserving tropical forests in a rapidly changing world
...tes that the aboveground biomass on BCI was almost constant since the first census. But lianas increased substantially (from 9% to 13% of all leaf biomass) between 1986 and 2002. In another protected area, the Kibale National Park in Uganda, a 30-year record suggests that reproductive activity by forest trees...Acupuncture versus acid reflux: 40% cut in sphincter relaxations brings hope for relief
...he distension volume [in the experiments] was kept constant and because acupoint stimulation did not affect gastric pressure, it seems unlikely that it was acting through alterations in gastric motility. The mechanism of inhibitory effect of electric acupoint stimulation on triggering of TLESRs thus remains t...New gene associated with Fanconi anemia 'explains' hallmark chromosomal instability
... believed to work with BRCA1 protein to repair the constant DNA damage that results from excessive sunlight, radiation, exposure to carcinogenic chemicals and even from normal cell division. "All of these seven Fanconi genes have to be normal -- if one isn't, then FANCD2 is not activated," says Auerbach. But ...Otter adaptations: How do otters remain sleek and warm
...tter behavior, next to their playfulness, is their constant grooming. This behavior is another important aspect of an otter's heat-sparing abilities. In addition to the interlocking structure of the underhairs, these hairs are coated with a thin layer of body oil from the otter's sebaceous glands, thus provid...Report recommends renewed focus on food and agriculture research
...nities in Food and Agriculture Microbiology. "The constant spread and evolution of agricultural pathogens provides a continually renewed source of challenges to productivity and food safety. However, research support over the last few decades has been lean and is, in fact, decreasing," says Michael Doyle of...... they are incubated in their nesting material at a constant temperature of 89F and 100 percent relative humidity," said John Vanden Brooks , a graduate student in the Department of Geology and Geophysics at Yale University. He noted that large-scale changes in atmospheric partial oxygen pressure would have h...