Ventilation in bars, casinos doesn't control health risk for hospitality workers
Baltimore, Md. The level of cancer-causing particles is much higher in the air of smoke-filled bars and casinos than on truck-choked highways and city streets, according to the first published comparison of indoor air quality before and after smoke-free workplace legislation. The study, conducted in a casino, six bars and a pool hall in Wilmington, Delaware, is published in the September 2004...Scripps scientists say genetic mutation doesn't protect against HIV and plague
A group of scientists at The Scripps Research Institute have provided strong evidence that a popular hypothesis concerning the origins of a genetic mutation common among Caucasians of Northern European descent that protects against human immunodeficiency virus (HIV) is wrong.... ...The hypothesis suggests that the mutation conferred resistance against bubonic plague in the Middle Ages, much as i...Family history doesnt predict colon cancer genes, behavior
Although certain genes and some behaviors, like eating well-done red meat, are associated with a family history of colon cancer, that history is not a good tool for predicting whether an individual will have a colon cancer-related gene or engage in a high-risk behavior, according to new research....... "The predictive value of family history for identifying persons with at-risk genotypes or envir...Serotonergic dysfunction doesnt cause suicide
Several lines of evidence suggest that a partially genetically controlled serotonergic dysfunction is involved in the biological pathogenesis of suicide. To investigate the involvement of serotonergic dysfunction in suicide victims, Japanese scientists measured the protein level of tryptophan hydroxylase (TPH), the rate-limiting enzyme in serotonin biosynthesis, as a pre-synaptic maker. They als...Regulating human X chromosomes doesn't use same gene as in mouse
A gene thought to keep a single X chromosome turned on in mice plays no such role in humans, Johns Hopkins researchers report in the August issue of the American Journal of Human Genetics....... The finding is likely to relegate the disproven gene to relative obscurity, at least in humans, says Barbara Migeon, M.D., of the McKusick-Nathans Institute of Genetic Medicine, whose laboratory found th...Estrogen doesnt prevent second strokes: protective effects of hormone replacement therapy challenged
Estrogen hormone replacement therapy does not reduce the risk of stroke or death in postmenopausal women who have already had a stroke or a transient ischemic attack (TIA), according to a report from the first randomized, controlled clinical trial of estrogen therapy for secondary prevention of cerebrovascular disease. ...... Previous observational studies have suggested that estrogen replaceme....La Jolla, CA, April 20, 2001 Scientists at The Skaggs Institute for Chemical Biology at The Scripps Research Institute (TSRI), have published two separate papers in the current issue of the journal Science in which they describe two different ways of engineering bacterial cells to encode "unnatural" proteins.. .These proteins differ from those produced by other living organisms because they i...Researchers discover weight-loss compound that doesnt affect food intake
.Researchers from the Whitehead Institute and Genset Corporation have found a new compound that controls weight gain in obese mice without affecting their food intake. The compound, called gAcrp30 and administered in daily low doses, caused profound and sustained weight loss in chubby mice eating a cafeteria dietmeals high in fat and sugar and available in unlimited quantities. Continuing the...Genetically Speaking, Race Doesn't Exist In Humans
.Race doesn't matter..In fact, it doesn't even exist in humans..While that may sound like the idealistic decree of a minister or rabbi, it's.actually the conclusion of an evolutionary and population biologist at.Washington University in St. Louis.. Alan R. Templeton, Ph.D., professor of biology in Arts and Sciences at.Washington University, has analyzed DNA from global human populations that.rev...Researchers Identify How AIDS Virus Kills Cells It Doesn't Infect
.Scientists in Texas, California and New York believe they have solved part of.the mystery of how the human immunodeficiency virus (HIV) can kill cells it.doesn't infect--and thereby prompt the downward spiral that results in AIDS..The results--published in the September 10 issue of the journal Nature--may help.researchers and physicians understand what makes HIV-infected people take a.sudden tu...Putting Doesn't Pollute, Research Finds
. WEST LAFAYETTE, Ind. -- Some of the most common chemicals used on golf.courses -- fungicides applied to golf greens -- do not pass into surface water.runoff or leach into ground water, researchers said today (Wednesday 8/26) at.the American Chemical Society meeting in Boston.. Ronald Turco, professor of agronomy and director of Purdue University's.Environmental Sciences and Engineering...Waste Asphalt Doesn't Pollute Groundwater, UF Researchers Say
.GAINESVILLE, Fla.-- Old asphalt scraped off roads does not bleed toxins into.groundwater and is safe to use as construction fill, according to tests by.University of Florida engineers.. The tests were spurred in part by fears that piles of old asphalt at.asphalt plants were allowing toxins into the environment, said Tim.Townsend, an assistant professor of environmental engineering scie...Study: Device Prevents Epileptic Seizures, Doesn't Damage Hearts
CHAPEL HILL -- Clinical studies show a promising new device for treating.intractable epilepsy works well in preventing seizures and has no ill effects on.patients' hearts, according to University of North Carolina at Chapel Hill.medical scientists. . "About 1.5 percent of the population suffers from epilepsy, and about 25.percent of patients do not respond to medication," said Dr. Bradley...