Clones on task serve greater good, evolutionary study shows
...tion. In addition, this study provides preliminary evidence that a well known plant development gene ERECTA may be in part responsible for some of the change in some genotypes. However, Dworkin said this conclusion requires further study.......glioma invasion. The researchers present the first evidence that this neurotrophin receptor can also be a potent mediator of glioma invasion, and they show that the expression of this receptor is sufficient to impart a dramatic invasive behavior on genetically distinct tumors. These data highlight a previousl...Bursts of waves drive immune system 'soldiers' toward invaders
...at makes it self-sustaining. The researchers found evidence that before each Hem-1 protein is eliminated, it recruits an additional Hem-1 right "next door." As each Hem-1 succumbs, a new one appears - but only on one side. Weiner thinks the structure of actin physically blocks Hem-1 from recruiting its daugh...Features of replication suggest viruses have common themes, vulnerabilities
... replicate its genes. The results provide strong evidence that at least some of the machinery four of the seven distinct classes of known viruses use to reproduce have common attributes. Such a discovery is important because it reveals a common viral theme that may be vulnerable to disruption and could lead...Does the desire to consume alcohol and tobacco come from our genetic makeup?
...likely to be inherited. Such studies have provided evidence that ones sex can influence the genetic factors fo...ay, the lead author of the research, We have found evidence of linkage and association for several genomic regions harboring genes with potential pathophysiolog...Smokeless tobacco more effective than cigarettes for delivering dangerous carcinogens into the body
... to reduce dependence. In fact, this study lends evidence to support the notion that the oral use of tobacco actually provides a more efficient means for delivering certain carcinogens into the body through the bloodstream, although cigarette smoke includes a host of carcinogenic products that arent a major...No evidence that widely prescribed statins protect against prostate cancer
...lic health significance is that our study provides evidence that statins may not have a clinically meaningful impact on testosterone in the blood, although further studies should be done, said study author, Susan A. Hall, Ph.D., a research scientist at the New England Research Institutes. That doesnt mean tha...1 of deep ocean's most turbulent areas has big impact on climate
... Mid-Atlantic Ridge. It provides never-before-seen evidence that deep water turbulence swirling in the small passageways of such mountains is generating much of the mixing of warm and cold waters in the Atlantic Ocean. Better understanding of the mechanisms of mixing is crucial, says St. Laurent, an assist...Antioxidant overload may underlie a heritable human disease
...ly lead the heart to failure. There is plenty of evidence about the damaging effects of oxidative stress, but there is another side to the coin, said Ivor Benjamin of the University of Utah, Salt Lake City. There has been so much emphasis on free radicals to the exclusion of the potential consequences of re...What we can learn from the biggest extinction in the history of Earth
...gical Society of America Bulletin, Payne presented evidence that a massive, rapid release of carbon may have t...um carbonate. In the July Bulletin, Payne presents evidence that underwater limestone beds around the world eroded at the time of the end-Permian extinction. Th...In limiting life span, study finds booming bacteria innocent
... shifts in humans intestinal bacteria with age and evidence that bacteria may blossom in the prostate and other organs of the elderly. To explore the consequences of such changes in bacteria with age in greater detail, the researchers looked to flies. Drosophila flies are emerging as an ideal model system i...Study: Sticking to the sand might not be such good, clean fun for beachgoers
...at a popular beach in Monterey, Calif., they found evidence of human waste-raising doubt about the commonly held belief that some fecal indictor bacteria occur naturally in the sand and are therefore benign. The team was led by Alexandria Boehm, assistant professor of civil and environmental engineering at ...Link identified between Alzheimer's disease and glaucoma
...ors to diagnose Alzheimer's disease by looking for evidence of nerve cell death. Alzheimer's disease is the most common form of dementia. Nearly 700,000 people in the UK suffer from dementia and this is expected to exceed one million people by 2025(2). "Many even within medicine fail to realise that the ret...Gene predicts better outcome as cortex normalizes in teens with ADHD
...there were few hints of a genetic connection. Yet evidence from several previous studies led them to suspect involvement of an ADHD-implicated version of a gene that codes for a receptor protein that binds to the brain chemical messenger dopamine. This version of the dopamine D4 receptor gene, called the 7...UF, French scientists seek test to detect gene doping in athletes
... organizations to develop a test that could detect evidence of doped DNA. WADA has had a research program in place for some years now, to try to develop tests for gene-based doping, said Theodore Friedmann, M.D., head of the agencys panel on genetic doping and director of the gene therapy program at the Uni...Genetic analysis finds greater threat in frog-killing fungus
...conducted. "But this study also provides the first evidence of genetic recombination in B. dendrobatidis, whic...unning thing to see. One year, there is no obvious evidence of the disease, the next year, we'd come back to see hundreds of dead or dying frogs, and then the f...Disabling a sensory organ prompts female mice to act like male mice
...ion were diminished. The findings provide strong evidence that male sexual behavior is hard wired into the female mouse brain and suggests, more broadly, that male and female courtship behaviors exist in the brains of both sexes and are switched on or off by the chemical cues mice use to initiate sex. "The...MIT study: Maturity brings richer memories
...makes sense, because there's been a convergence of evidence that the PFC develops later than other brain regions, both functionally and structurally.... But this is the first study that asks how this area matures and contributes to learning. For the study, Noa Ofen, a postdoctoral associate in Gabrieli's l...Human knowledge is based upon directed connectivity between brain areas
...mans are still rare. In the last years of research evidence has accumulated to regard the brain as a parallel system with highly specialized compartments, so that different processing stages take place at different brain sites. According to the prominent theory of neuronal synchronization, cooperation between...Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
...uce. These tagging data potentially provides new evidence that mixing is occurring in the northern waters of...eports help define where bluefin spawn and provide evidence for their trans-oceanic migrations. A fisherman from the Scandinavian Tuna Club might have chased t...