UCSF scientist Joe Derisi named MaCarthur Fellow
...auser, MD, to examine multiple sclerosis, which is believed to have a viral component in some cases. Funding for developing this microarray and carrying out the ongoing respiratory studies is sponsored by an award from the Sandler Program for Asthma Research. While microarr...Punching the timeclock of life
...ast, hinges on a process called "group selection," believed by most scientists to be wrong because it proposes that selection happens at the group level rather than the individual . The gerontologist also rejects the commonly accepted theory that aging happens by chance and that, like a car, an organ...Brown research reveals key insight into memory-making
...ynaptic strength can last hours, even days, and is believed to be the cellular basis for memory. AMPA receptor...lers, associate professor of neurobiology at Duke, believed that recycling endosomes, or membrane-bound compartments inside neurons, carry a reserve pool of the...Key stimulator of colorectal cancer identified
... abnormal growths in the colon and rectum that are believed to be an early stage of CRC. In a mouse model system for studying polyp formation, PGE2 treatment induced an increase in the number and size of intestinal polyps. Importantly, this effect of PGE2 was not observed in these mice when they lack PPARd. ...Resveratrol synthase uncovered: Cyclization specificity of type III polyketide synthases
...ne is resveratrol, which is found in grapes and is believed to be a major contributor to the "French Paradox,"... regulated by the shape of the active site, as was believed previously, but occurs because of an alternative electronic network, termed the aldol switch, that e...A liking for sweets, combined with novelty seeking, may predict alcoholism
...nfamilial forms of alcoholism, said Kampov. It is believed that high novelty seeking causes early experimentation with alcohol and, as a result, higher lifetime rates of heavy drinking, alcohol abuse and dependence. In the past, there were several attempts to use novelty seeking as a predictor of alcoholism...Sugar-coated sea urchin eggs could have sweet implications for human fertility
For many years scientists have believed they understood how closely related species that occupy the same regions of the ocean were kept from interbreeding. It turns out they were only seeing part of the picture. New research from the University of Washington's Friday Harbor Laboratories s...Columbia research to examine gene influence on severity of peridontal disease, therapy response
...nflammatory response to the bacterial challenge is believed to determine the type, extent and severity of periodontitis, and this response is believed to have a strong genetic component. Dr. Papapanou and his team will examine gene expression signatu...Case for IBD combination therapy comes from research at Baylor, MIT and Hebrew University
...elia from cell surface glycosaminoglycans (GAG) is believed to trigger IBD, and their enrichment has been proposed for treatment. Yedgar's lab has designed and synthesized multi-functional anti-inflammatory drugs (MFAIDs) that address both these needs, by linking PLA2-inhibiting lipids to GAG. They report tha...Researchers discover why mutant gene causes colon cancer
...ncer can result. "For a long time, scientists believed they knew what the APC gene did that it regulated cell growth and division but now we know we've been missing a big piece of the picture," reports David Jones, Ph.D., principal investigator of the study and leader of HCI's Colon Cancer Scientific P...Wrapping a memory with an experience, capacity for recollection detected in non-human species
...cture known as the hippocampus, the same structure believed to be involved in recollection in humans. Their findings are published in the September 9 issue of the journal Nature. Although neuroimaging studies of hippocampal activity in normal individuals as well as studies of amnesia indicate the hippocampus...New genetic hypothesis for the cause of autism
.../journal/ajmg . The role of genetics in autism is believed to be significant because twin studies have found that identical twins, who have the same DNA, are much more likely to share the diagnosis than fraternal twins. However, experts have not yet identified the specific genetic components related to autis...For imitative parrots, wagging tongues may be key to vocalization
... make very complex vocalizations, it was generally believed that most of birds vocal complexity originated fro...al-tract articulators, so important in humans, was believed to be only subsidiary in birds, although it has been proposed that parrots, with their fleshy, highl...Identifying tick genes could halt disease, bioterrorism threat
...nited States transmits West Nile virus, previously believed to be only mosquito-borne in this country. Hill and her colleagues selected the deer tick, scientifically known as Ixodes scapularis, in part because of its large impact on human and animal health. Deer ticks are the main vectors for Lyme disease, wh...How an insidious mutation fools DNA replication
...xplains how oxidative DNA damage -- a process long believed to underlie cancers and aging -- can create permanent genetic damage. The Duke University Medical Center researchers' findings were published online Aug. 22, 2004, by the journal Nature. The scientists were led by Associate Professor of Biochemistry ...Advances in tumor angiogenesis Dendritic cells co-opted to the dark side
...mmune response," says Coukos. "As a result, it was believed that these were mostly good players in inducing tumor rejection." But when dendritic cells are part of the tumor microenvironment, instead of stimulating an immune response, they deviate from the program and are co-opted into tumor angiogenesis. "Whe...One-hundred-fifty year old lessons of John Snow still relevant today
... the medical community of that time, most of which believed that diseases were spread primarily through the ai...ther than the air. In the mid-19th century, it was believed that if a disease-causing agent found its way into water, it would soon become diluted and essential...Highlights of American Chemical Society national meeting in Philadelphia, Aug. 22-26
... very complex protein enzymes. But it is generally believed that such complex enzymes did not exist in early life forms. Then how did DNA and RNA molecules, also known as nucleic acids, synthesize and reproduce in early life forms without the aid of these proteins? Nicholas V. Hud, Ph.D., a chemist with Georg...Unicellular organisms contribute more nitrogen to ocean that reported earlier
...for the cyanobacteria Trichodesmium (traditionally believed to be the dominant marine nitrogen-fixer) in the Pacific Ocean. These unicells are the largest single source of nitrogen entering the water in broad areas of the ocean." This level of nitrogen fixation in the Pacific Ocean alone accounts for about 1......far more widespread than once thought. It had been believed that the genus was found only in Bermuda caves but now researchers believe it is ecologically quite diversified. The information collected from description can help biologists trace the origins of living things as well as determine the biodiversity,...