Chernobyl study: Risk of thyroid cancer rises with radiation dose
...dioactive contaminants remain in the area, they do not cause appreciable doses of radiation to the thyroi...overnment and that of the former Soviet Union were not so friendly, so establishing connections through that route didn't work." But in 1990, an opportunit...DHA-rich diet protects brain from Alzheimer's damage, UCLA study shows
... control group that consumed the same diet but did not carry the Alzheimer's genes. The results surprised them. "We found high amounts of synaptic damage in the brains of the Alzheimer's-diseased mice that ate the DHA-depleted diet," observed Frautschy. "These changes closely resembled those we se...Study reveals first genetic step necessary for prostate cancer growth
...absence of additional genetic defects, the mice do not develop full-blown prostate cancer. This suggests .... Nearly a year after they formed, the growths did not become cancerous. "This suggests to us that loss of a single copy of Rb can initiate this excess cel...Pig-human transplantation not PERVerted
... of PERV transmission within a living organism has not been tested in either patients or animal models un...g the PERV from there to the human cells. This is not a concern in actual xenotransplantation, but intriguingly may account for previous observations of P...Convulsions in worms mimic epileptic seizures
...ation and severe epilepsy, the causes of which are not well understood. The team traced the mutation's ...ugh the doses of PTZ used in these experiments did not cause convulsions in normal worms, when the researchers administered the chemical to the mutant worm...Purdue study finds antioxidant protects metal-eating plants
... lab plant called Arabidopsis thaliana, which does not normally tolerate nickel. The gene SAT produces an enzyme called serine acetyltransferase, which plays a role in producing glutathione in hyperaccumulating plants. When Salt grew both normal Arabidopsis and those containing the SAT gene on a nickel-c...JCI table of contents: 1 September, 2004
... of PERV transmission within a living organism has not been tested in either patients or animal models un...g the PERV from there to the human cells. This is not a concern in actual xenotransplantation, but intriguingly may account for previous observations of P...Scientists discover proteins involved in spread of HIV-1 infection
...cess. However, the analogous pathway in humans is not quite as defined--scientists have found the human equivalent of Vps28p, but not Vps37p. Missing this protein has made it hard to understand what exactly goes on in humans. Now, ...Anti-cancer compound in vegetables found to block late-stage breast-cancer cell growth
...uplicated chromosomes during cell division. "It is not yet clear whether the doses required to produce in... cancer development, Singletary said. "What we do not know is how specific SUL and other similar phytochemicals are toward cancer cells compared to normal...Modest climate change could lead to substantially more and larger fires
...mate and the total area burned in these states may not respond strongly to changed climate. Parts of Nort...s and dry air associated with the Santa Ana winds, not temperature by itself, McKenzie says. At the other extreme are Montana, Wyoming and New Mexico. Mon...Green tea research leads to gum and other products
...t of the elderly, Dr. Hsu noted. The green tea gum not only protects the tissue but stimulates the salivary glands to produce more moisture. Healthy people can chew the gum for preventive health, or just to enjoy a piece of gum, Dr. Hsu said, noting that the cost is comparable to that of regular gum. He ...NIGMS funds Center for Quantitative Biology
...ary collaboration and curriculum, this center will not only yield new insights about complex biological processes, it will also train the research leaders of tomorrow." Called the Center for Quantitative Biology, the effort will focus on three key biological questions: how body patterns are established ...Analysis of biological clock may lead to greater understanding of human disease
...s show that the internal clock is robust, that is, not easily perturbed. These studies may eventually lead to greater understanding of human jet lag as well as human disease states. Engineers at the University of California, Santa Barbara's new Institute for Collaborative Biotechnologies and the Max Plan...Mouse study shows NPAS3 and NPAS1 genes may be linked to psychosis
...normal siblings. In addition, the mutant mice do not have a normal startle response, and have a distinct reduction of a protein called reelin in their brains. Other researchers have shown in postmortem examinations of the brain tissue of schizophrenics that these patients have a reduction in reelin, sa...Protemix corporation announces discovery of way to repair hearts damaged by diabetes
...since the beginning of time that heart muscle will not regenerate. This work refutes that.' 'This is great news for biotechnology and research in New Zealand. It shows that we can do high quality, international level research in this country. We have the wherewithal, the people and the facilities.'...How an insidious mutation fools DNA replication
... with adenine rather than the correct cytosine. If not detected and corrected, such a mismatch leads to e...biochemistry of this mismatch reaction, but it was not understood why this particular lesion evaded detection as well as it does," said Beese. "It is one o...Humans march to a faster genetic 'drummer' than primates, UC Riverside research says
...he chemistry of human chromosomes. The process was not random, Dugaiczyk said, and it was not subject to an environmental "natural selection," separating winners and losers as theorized by Darwi...Researchers improve detection of diverse anthrax strains
...al Academy of Sciences. "This level of detail is not possible without whole genome sequences from multi... in this work were highly stable. Only one SNP was not entirely stable across the entire study, which means that diagnostic and forensic tests developed us...Patented process preserves transplant tissues/organs
... temperatures (approximately 4 C) and freezing has not been possible due to ice crystals, which damage delicate cells and greatly reduce the viability or functions of the tissue. Chemicals called cryoprotectants reduce ice formation but have toxic effects that introduce their own problems. The Organ Reco...Probing the surface of white blood cells to enhance immune system medicine
...floats around in the blood, but, in fact, they are not smooth at all they have these wonderful invaginations and protrusions coming off of them," explained Higgs, who is also a member of the Immunology and Cancer Immunotherapy Research Program at Norris Cotton Cancer Center and a member of the program i...