Ancient 'Volcanic Winter' Tied To Rapid Genetic Divergence In Humans
...ersityof Illinois, proposes that a volcanic winter reduced populations to "levelslow enough for evolutionary changes, which occur much faster in small populations,to produce rapid population differentiation," Ambrose said. If, ashe believes, the eruption of Mount Toba in Sumatra caused the bottleneck,"then m...Data Support Idea That Zinc Plays Key Role In Fight Against Anorexia
...to anorexia, chronic zinc deficiency can result in reduced growth and sexual development, a weakened immune system, hair loss and skin lesions. "For people trying to recover from anorexia, or those who are having trouble holding onto body weight, I believe our work strengthens earlier findings that recomme...Flexibility In Cutting Toxic Releases Yields Dividends
...ve change in the compositionof wastes. "Firms have reduced their on-site releases and increasedoff-site trans...e immediatecosts of the program would be offset by reduced future liabilities and savingsdue to increased efficiency. The threat of possible liabilities under......eral eyes. Failure of these processes results in a reduced forebrain and cyclopia (fused eyes). Cyclopia appears not only in animals such as the zebrafish, but also in humans who develop a syndrome called holoprosencephaly. Some cases of holoprosencephaly have been found to result from mutations of the hum...New Study Highlights Hazards On Hormone Disrupting Chemicals
...esearch programme", headded. New findings showing reduced sperm quality and increased cancer incidence inhumans has sparkedoff the recent debate. However, there is no Swedish investigation into this, andthe trends from themost comparable countries are highly different. Testicular cancer and prostate cancer...School Breakfast Participation Leads To Academic, Psychosocial Improvements
... according to aconventional payment system: free, reduced or full-price meals depending onfamily income. Be...ession and anxiety and, for theBaltimore students, reduced levels of hyperactivity, as reported by teachers. Changes in reported behavioral problems from the p...Clean Air Act Reduces Acid Rain In Eastern U.S.
...o Lynch. The Clean Air Act TitleVI appears to have reduced acid rain levels in the Northeast. The Penn State researcher admits that some reductions in acidity innorthern New England are probably a direct result of similar environmentalcontrols in Canada's southeastern provinces. A severe drou...Upcoming 'Century Of Biology' Given Head Start By NSF Plant Genome Research Program Grants
...nefits ofthis research include better crop yields, reduced fertilizer requirements, andbetter quality food, adds Coe. "The end result is a better quality of life, notonly for us, but for the entire planet." In other research, scientist Thea Wilkins of the University ofCalifornia at Davis will study ...Antioxidant Action Of Vitamin E Significantly Reduces Heart Disease In Mice
...sive process. The results showed that lesions were reduced from 31.7percent of the aortic arch surface area in the untreated mice to 19.3 percent inthe mice receiving vitamin E for 16 weeks, an improvement of approximately 40percent. According to FitzGerald, the measure of lipid oxidation used in the...Gene Therapy In A Liquid May Lead To Quicker, Easier Methods For Treating Disease
...ut halfof the world's population. It results from reduced activity of an enzyme,lactase, and is characterized by an inability to metabolize lactose. The work was supported in part by the Juvenile Diabetes FoundationInternational....Leptin Regulates Hunger During Energy Deficit In Women
...followed by 12 wk of energy deficit (energy intake reduced by 2 MJ/d and energy expenditure increased by 0.8 MJ/d). Body weight and composition were monitored, fasting leptin concentrations were measured 4 times, and feelings of hunger, fullness, desire to eat, and prospective consumption were monitored hour...Vaccine Technology Takes Center Stage In Rochester
...n in 1990, the numberof children infected has been reduced by about 98 percent - onlya few hundred children each year get sick from the microbe. Thevaccine is now made and sold by Wyeth-Ayerst, a division ofAmerican Home Products. As important as the vaccine itself is the underlyingtechnology developed ......researchers also found that the alteredmice show a reduced sensitivity to alcohol. "The normal littermates showreduced locomotion following an injection of alcohol while the locomotion of themutant mice did not change," says Phillips. "In addition, the normallittermates show increased stumbling and the mut...Fully Endoscopic Brain Surgery At Cedars-Sinai Medical Center
...pects that time to shorten evenmore) Dramatically reduced length of stay in the hospital (At present, about 2 dayscompared to 5 days for traditional pituitary surgery. Dr. Shahinian anticipatesthat within the next two years, this may become a "same-day" surgery.) Less discomfort as the brain itself is not ...Inherited Depression Linked To Shortage Of Cells In Brain Region
...rols contained about 9million glia. The number was reduced to about 7 million in the people withfamilial unipolar depression and to about 5.4 million in the people withfamilial bipolar disorder. Medication effects were unlikely to account for the difference, Priceexplains, because both the familial a...Research Suggests New Way To Gauge A Woman's Fertility
...er women, who are nearer menopause, should have reduced ovarian function compared to younger women, Danforth said. However, the results showed no difference between the older and younger women in terms of FSH levels. “This suggests that inhibin levels may be a more sensitive gauge of ov...Hopkins Study Shows Brain Damage Evidence In "Ecstasy" Users
... spinalfluid for levels of a serotonin by product; reduced amounts strongly suggestedbrain damage in humans. "But this is the first time we've been able to examine the actualserotonin-producing nerve cells directly in the brain," Ricaurte says. Using anerve-specific technique that took more than fi...Medical Tip Sheet - November 1, 1998
...oramic view of pituitary tumorsites and results in reduced operating time, fewer complications, lessdiscomfort for the patient and a dramatically shorter length-of-stay. A42-year-old woman from Indiana had surgery 11/04, and is anticipated to bereleased 11/06, flying home to Coatesville on 11/08. She is avai...UNC Researchers Reduce Arthritis Severity By Turning Off Molecular Switch
...he University ofNorth Carolina at Chapel Hill have reduced the severity of arthritis by turningoff a molecular switch, a gene called NF-kappa B. A report published Nov. 10 in the Proceedings of the National Academy ofSciences says the findings, based on experiments in laboratory rats, establishan important ...