Concern Unfounded About Damage From Vitamin C
...s going on during the metabolicprocess. In numerous studies done with vitamin C supplementation mostly withhumans and some other animals, 38 different studies found a reduction ofoxidative biomarkers and 14 showed no change, Carr said. There were six studies which showed some increase in oxida...Report in Science on x-ray crystal structure of matrix Metalloproteinase-2 (MMP-2)
...le of MMP-2in tumor invasion has been confirmed by numerous laboratories, and is now aprimary target for the development of advanced MMP inhibitors to treat cancermetastasis. Most of the MMP inhibitors that have reached clinical trials exhibit broadactivity against many members of the MMP family, now known to...Horseshoe crab studies providing new insight into valuable ancient creatures
...s have been conducted. But biologists saythere are numerous reasons for concern: commercial harvesting of horseshoecrabs is increasing, and much of the sandy beach habitat needed forspawning has been lost. Evidence also suggests that red knots and other migratory shorebirds are inserious decline, though the c...Remarkable results from a new observatory
...d by scientists for many decades because it shares numerous commontraits with human cells. The NMR imager works very much like a magneticresonance imaging unit at a modern hospital. However, while the hospital unitscan only examine relatively large sections of the body containing millions ofcells, the NMR ...SFVAMC-UCSF scientists solve a key protein structure
...nce. Every human cell has its own energy source - numerous tiny power plants calledmitochondria. These mitochondria use five protein complexes (multi-proteinunits), collectively known as the respiratory chain, to generate most of ourcells' energy. Basically, Complexes I through IV pass electrons to each ot...USGS scientist receives award for brucellosis research in Greater Yellowstone Area
... of Biology at Montana State University. His numerous research projects include collaborators from a wide variety of state and federal agencies and universities, including USDA/Animal and Plant Health Inspection Service, USDA/Agricultural Research Service, U.S. Fish and Wildlife Serv......r new entry of MAK values orthe classifications of numerous substances are announced in the "Yellow Pages"of the list of MAK and BAT values....Congress briefs: International congress on ecosystem health
...t amount of time and money to establish, they have numerous long-termbenefits such as providing habitat for be...n ecosystem that, like Clear Lake, is subjected to numerous ecologicalstresses. Clear Lake is ancient, shallow and highly productive, with habitatsfor migratin...... release. Vesicle maturation has been inferredfrom numerous experimental observations but up to now was never demonstrateddirectly. Iris Augustin in the laboratory of Nils Brose at the Max Planck Institute forExperimental Medicine in Goettingen/Germany generated mutant mice lacking asingle synaptic protein, ......le points out thatlipoproteins--of which there are numerous separate forms--serve separate,important functions for bacteria. In addition, he said, the immune response cansometimes harm rather than help the host. "The human body normally protects itself from the tuberculosis bacteriumby walling off ...Particulate matter causing air pollution
...y regulated, has raised concernrecently because of numerous studies linking it to serious health problems. Fineparticulate matter (called PM 2.5 because it is less than 2.5 microns indiameter or 30 times smaller than the diameter of a human hair) includes soot,dust, aerosols, metals and sulfates primarily emi...Scientists dissect bacterial crosstalk
... scientists find. The microbes in our body -- more numerous than human cells -- fend off pathogensand do other essential chores. "But we know very little about how ourrelationships with them are forged," says Jeffrey I. Gordon, M.D. "We want tounderstand the conversations that occur between these microbial gu...UI study suggests genetics and gender affect human response to endotoxin
...ffect. "The endotoxin causes macrophages, the most numerous inflammatory cells in thenormal lung, to release mediators of inflammation such as cytokines," Klineexplained. "These proteins have multiple effects including attracting otherinflammatory cells." Overall, the research adds to the "growing acceptance"...... Surgical Society Research Presentationawards, and numerous other scholastic honors and awards. Although her r...erm coronary arterydisease. After being damaged by numerous heart attacks, the heart muscle hasbecome fatigued, stretched and ineffective, leaving Nuckols weak ...Study finds prenatal exposure to testosterone boosts smoking
...ente patients,have been and continue to be used in numerous other studies, including work oncancer and environmental toxins to which the pregnant women may have beenexposed. "The effects of nicotine or continine on testosterone and the role ofsmoke compounds and nicotine metabolites other than contini...Scientists gather in Oregon to decide next steps of mid-ocean ridge exploration
...usand miles of previouslyunknown ridge area, while numerous new and exciting discoveries have increasedthe knowledge of deep-ocean hydrothermal vents, their relationships to theorganisms that are nourished by them, and the volcanic and magmatic systems inthe Earth beneath them. The globe-encircling m...Hurricane Floyd brings record flooding to southeast Virginia
...rcent chanceof occurring). Localized flooding from numerous small ungaged streams in theHampton Roads area has also occurred. USGS crews are out measuring streams throughout Virginia. Real-time streamflowdata are available at http://va.water.usgs.gov/ at "Current StreamflowConditions." USGS personnel are a...USGS studies wildfire ecology in the western United States
...researchers, in collaboration with scientists from numerous other agencies and institutions, are providing this information through detailed studies of fire history and fire ecology in different environments. USGS Director Charles G. "Chip" Groat says that, "Knowledge from these studies is forming the basis f...Newly released satellite images of Antarctica a valuable scientific benchmark
...nce Foundation(NSF), through the USAP, coordinates numerous scientific research efforts in theregion. Borg noted that the satellite images will provide a basis for comparisonwith other data gathered in the region, thereby adding to a growing database ofinformation that includes smaller-scale aerial ph......he Big Bang theory or evolution." Lessl identified numerous themes from the respondents, including the associationof Darwin with an ecological view of life; a belief in the superiority ofscience and scientific knowledge; a simple desire to make a joke; and as asymbol of harmony between science and religion. T...