University of Pittsburgh researchers uncover mitochondrial defect involved with inherited cancers
...ding to Dr. Baysal, some types of chemotherapy and radiation treatments rely on oxygen as a reagent to destroy cancer cells. In a tumor with low oxygen levels, those therapies cannot be as effective. If the Pitt research team's hypothesis is correct, this discovery may lead to more effective cancer treat...Scientists capture first images of how x-rays damage proteins
... "weak links" may yield future measures to prevent radiation damage. UPTON, NY -- While attempting to "ph... Stunning because, previously, scientists believed radiation damage was nonspecific, or random. But the Brookhaven work and studies with other enzymes elsewhere ...Plankton are not affected by ozone depletion
... researchers are right, then increased ultraviolet radiation is having scarcely any effect on the growth of mar... cover, and UV-B strength, the type of ultraviolet radiation that increases as atmospheric ozone declines. To find out what increased UV-B did to phytoplankton...Scientist find clues to different warming rates
... of satellites that measure theupwelling microwave radiation from oxygen molecules Over the period 1979 to 1998, the surface data show a warming of 0.2-0.4 degree Celsius, while the radiosonde and satellite data show nowarming or only a slight temperature rise (0.1 degree C) in the lowertroposphere over the sa...Amphibian declines complicated, disturbing
...bian declines, which include rising levels of UV-B radiation in sunlight, pathogens, pollutants, habitat destru...ces which linked ambient but rising levels of UV-B radiation in sunlight to physical deformities in amphibians. This field study found that more than 90 percent ...Carotenes and vitamin E protect against sun damage to the skin
...e 1973, protection of the skin against ultraviolet radiation damage has become a priority health issue. Beta -carotene (a precursor of vitamin A) has been widely used as an oral sun protectant with few studies into its effectiveness; however, new research by Stahl et al. in The American Journal of Clinical Nu...Asteroid devastation possibly worse than feared
...als that have lost their resistance to ultraviolet radiation and penetrating more deeply, with greater intensit... ozone depletion would cause levels of ultraviolet radiation to at least double, about 600 days after impact." According to their study, these factors would lead...Completion of the Drosophila genome sequence
...obel prizes. These include the demonstration that radiation causes mutations and the discovery of genes that control the basic body plan of all organisms. Drosophila has the largest genome sequence produced to date. This daunting project was only accomplished at an accelerated pace because private indust...New $4.2M research center at U-M seeks to see cancer more clearly
...ng with Alnawaz Rehemtulla, assistant professor of radiation oncology. The U-M center is one of only five in the nation being established under the NIH's new funding effort for molecular imaging. The U-M application for funding received the highest score. At the U-M, a three-year, $1.2 million grant begins Ap...New USGS research shows how land use affects amphibians
...other chemicals, increased exposure to ultraviolet radiation due to ozone thinning, and the spread of non-native predators. Many biologists suspect that a combination of factors may be responsible. These die-offs are of great concern because amphibians are good barometers of significant environmental changes t...Reports of "weird life" almost stranger than fiction
...diodurans can withstand 10,000 times the amount of radiation that would kill a human, earning it monikers like ...an the Bacterium." "It's just phenomenal how much radiation life can take and remain viable,"said Daly, a scientist at the Uniformed Services University of the ......iolka, M.D., professor of neurological surgery and radiation oncology at the University of Pittsburgh department of neurological surgery, reported today that some patients who underwent neuronal transplantation following stroke showed improvement in motor function. His study, presented at the annual meet...Researchers decode human chromosomes 5, 16, and 19
...ration) to study the genetic and health effects of radiation and chemical by-products of energy production. From this work grew the recognition that the best way to learn about these effects was to study DNA directly. The ability to analyze the entire human genome makes it possible to observe changes in DNA ...Oral exposure to anti-oxidant glutathione could help prevent flu infections
...riety of cancer causing agents, including ionizing radiation and environmental carcinogens. Studies by Dr. Jones and his colleagues on the potential role of dietary glutathione, however, have previously found that the body does not appear to use the compound on a systemic basis to ward off disease. While s......bits and education levels) and everyday background radiation exposure beyond what was caused by the TMI inciden...fter the incident was exposed to considerably less radiation than the annual dose an individual receives from the everyday environment in the United States. The ...Common spices protect bacteria during irradiation
...sed to protect healthy tissue in people undergoing radiation therapy. The research, conducted at the Bhabha Atomic Research Centre in Mumbai, India, is reported in the current print issue (April 17) of the Journal of Agricultural and Food Chemistry, a peer-reviewed monthly publication of the American Chemica...Hopkins scientists link human papillomavirus (HPV) to head and neck cancer
...iven prior to standard therapy with surgery and/or radiation therapy. "Although HPV DNA has been detected in head and neck cancers for sometime, its role in cancer development and the means by which HPV is transmitted to the upper airway has remained unclear," says one of the study's senior investigators, Da...Fact sheet: the Report on Carcinogens - 9th edition
...tion and cancer of the liver and breast. Solar UV radiation and exposure to sunlamps and sunbeds - Exposure to...te a causal relationship between exposure to solar radiation and melanoma and other skin cancers in humans, and that exposure to sunlamps or sunbeds is associate......igation methods that can be used in neuro-surgery, radiation therapy, surgical oncology, orthopaedics and traumatology.......sed therapies, dietary supplements, cellular phone radiation emissions and occupational chemicals. The Food an...enerally available, as well as the radio frequency radiation emissions from cellular phones. Early studies of DNA-based products involved critically ill pa...