No Such Luck: Nitrogen From Air Pollution Unlikely to Moderate Global Warming
...y, greater abundance of non-native species and the disruption of ecosystem functioning -- responses that are tightly linked. "We cannot preserve prairies or maintain the functioning of these and other ecosystems if we continue to pollute them with high rates of atmospheric nitrogen deposition," said Tilman. "...Columbia Researchers Identify Gene For Inherited Baldness
... The several forms of alopecia represent a disruption in the cycle ofhuman hair growth. The most common type of hair loss, known as androgenetic alopecia, ormale pattern baldness, is believed to affect some 80 percent of the population.Other forms, such as alopecia areata, a common disease affecting 2.5...Research Finds Alligator Problems Also Evident In Less Polluted Lakes
...rone and estradiol -- but now we have evidence of disruption in other endocrine-controlled systems," Crain said. With funding from the Environmental Protection Agency and the National Institute of Environmental Health Services, the team wanted to see if the past findings from the Lake Apopka alligators were...Long-Standing Puzzle Of Immune System Is Solved By UCSF Researchers
...uate student withWabl's laboratory, found that the disruption of the gene that encodes Pms2resulted in a dramatic decrease in hypermutation. Pms2 also has been discovered to be abnormal in certain forms ofhuman cancer. This finding has led some cancer researchers to suspect thata defect in the gene en...Adults Need To Increase Intake Of Folate; Some Women Should Take More
...e defects -- such as spina bifida -- result from a disruption during thedevelopment of the fetus's central nervous system in the first month ofpregnancy, when most women do not realize they are pregnant. A common type ofcongenital malformation of the central nervous system, neural tube defects mayappear as inc...High-Altitude Cerebral Edema Likely Caused By Leaks In Blood-Brain Barrier
...s that high-altitude cerebral edema is caused by a disruption in the blood-brain barrier, the specialized layer of cells in cerebral blood vessels that, under normal conditions, allow only certain substances to pass into the brain's circulation. John A. Krasney, Ph.D., UB professor of physiology and a spec...Fetal Lead Exposure May Reduce Immunity
...n the immune system is assembling its defenses and disruption by lead could produce persistent damage to immune defenses. In addition to Dietert, the lead studies were conducted by Capt. Thomas E. Miller, USAF, a Cornell graduate student at the time of the experiments; Karen A. Golemboski, senior research a...Social Disruption Leads To Shorter Survival In Monkeys With AIDS
... epidemic, psychologists have believed that social disruption in HIV-infected people could hasten the progressio...f this study can't specifically address how social disruption leads to faster disease, the authors speculate that such disruption can activate the body's stress r...Advances In Analyzing Environmental Endocrine Disruptors And Their Effects On Health, Environment
...he CDC beganstudying the implications of endocrine disruption by xenobiotic compounds. Theyfound a significant lack of large studies of fetal exposure to possibleendocrine-disruptors. Researchers will discuss a study with NIEHS now underwayto examine possible fetal exposure to persistent endocrine-related co......y have over men. AF is caused by a disruption in the rhythm of the atria, theheart's upper two chambers. It causes an irregular heartbeat that results inthe heart pumping blood less effectively. About 2 million Americans have AF,according to an editorial in Circulation: Journal of the American...Aquaculture: Not An Easy Answer To Overfishing
...tion,creating a "boom and bust" economic cycle and disruption of local communities. A big part of the problem, the report said, are the huge amounts of fishneeded to produce fish meal and oil for the "delicacy" species such as shrimpand salmon that bring top prices in the market. It can take 1.8 milli...Scientists Show For The First Time How Leprosy Bug Targets Peripheral Nerves
...use of certain types ofmuscular dystrophies is the disruption of laminin-2-dystroglycan linkage," saysRambukkana. Leprosy is a chronic bacterial infection that damages nerves, mainly in thelimbs and facial area, and also leads to skin lesions. M. leprae is the onlyknown bacterial pathogen that attacks the perip...Fossil Eggshells Hold Clues To Major Animal Extinctions As Reported In Science
...d speculate that its causemay have been ecological disruption from burning by the continent's early humaninhabitants. This evidence should help clear up a decades-old debate as towhether human activity or climate change was behind the extinction events thatrocked ecosystems around the world during the Quaternar...Farmers Can Afford To Clean Up Gulf Of Mexico, Analysis Shows
...ure," Doering says. "Beyond that, there is serious disruption in terms of high food prices, an increasing drop in exports, and a loss of farmland." Doering says that farmers can reduce nitrogen loss by 20 percent by improving farm management practices. "Fertilizer management will be the key thing," he says...... therapeutic agentsinside the brain with a barrier disruption technique that involves injectingpatients with a sugar solution. This solution causes the tight endothelialjunctions to shrink and open temporarily. With the barrier down, physicians canget cancer-fighting drugs across the barrier and into the brain ...Studies Document Ease Of Ecosystem Disruption
... farmore vulnerable than often assumed, subject to disruption by fairly smallenvironmental changes or loss of "minor" species not traditionally thought to beimportant - and in considerable peril from global change. Both research efforts were done by ecologists from the Department ofZoology at Oregon St...Chemical Contaminants May Inhibit Cancer-Fighting White Blood Cells
...butyltins to have various toxic effects, including disruption of the immunesystem. Loganathan says his current study, using blood cells from adult male and femalevolunteers, was the first to demonstrate the effect of butyltin compounds onhuman immune cell function. Loganathan and Whalen also measured butyltin l......e tissue is linkeddirectly to the level of genetic disruption that occurs within the sarcoglycancomplex - a critical muscle structure composed of four membrane-spanningproteins. Depending on the nature of the mutations that can affect any one ofthese proteins, the integrity of the muscle membrane is compromise...Genes Found That Label Cell Proteins For Disposal
...ted in cancer and otherhuman illnesses, failure or disruption of this cellular mechanism may promotethe disease process, according to Dr. Yue Xiong, assistant professor ofbiochemistry and biophysics at the UNC-CH School of Medicine. "Balance is the key word. How the cell cycle of growth and divisionmain......e very closely to humans." With the knowledge that disruption of EGFR function interferes with normaldevelopment of the palate, it may be possible for scientists to developtherapies for cleft palate. However, it is believed that the majority of cleftscan be attributed to a combination of genetic and environmen...