NASA satellite sees ocean plants increase, coasts greening
... coastal increases," said Gregg. "The trends could indicate improved health of the ecosystems as a whole, or they could be a sign of nutrient stress." Causes of nutrient stress include land run-off that deposits agricultural fertilizers and other nutrients in the oceans. The run-off can promote large algal bl...Protein delivers selenium for normal sperm development
...dings, according to Olson and colleagues, strongly indicate that SEPP1 is the source of the selenium needed for development of normal sperm and for male mice to maintain their fertility....Norovirus found to cause traveler's diarrhea
...ong visitors to Mexico, this is the first study to indicate that Norovirus contributes to traveler's diarrhea in visitors to Guatemala. Amy R. Chapin, first author of the study and a PhD-candidate in the Department of Environmental Health Sciences at the Johns Hopkins Bloomberg School of Public Health, noted...New tumor-suppressor gene discovered
...mation of the same kinds of tumors. These studies indicate that the disabling of this one gene alone can cause the growth of tumors. The researchers then did a number of experiments to study this line of flies with the clearly defective mats gene. "With transgenic techniques, we were able to introduce a n...Beef feeding research studies pasture vs. grain
...ia Tech's College of Agriculture and Life Sciences indicate that pasture-fed beef has less fat and higher conj...ave been positive in all fields. Specific findings indicate that there is no taste difference between pasture finished and grain fed steers.......ential for fertility." She said further study may indicate whether the loss of TAF4b also has an effect on the fertility of human men. Falender became aware of the issue when she went to evaluate overcrowding in the mouse colony. She found that all pairs of animals that were no longer breeding had a male mo...Studies expand understanding of X chromosome
...some that gave rise to the X chromosome, or it may indicate that genes coding for key proteins that are required in double dose were transferred from the X chromosome to other chromosomes during the course of mammalian evolution. Despite its relatively low gene density, the X chromosome holds a prominent pla...Tips from the Journals of the American Society for Microbiology
...frequency. "This study is the first of its kind to indicate that NoVs may be a major cause of illness among United States travelers who experience TD during extended stays in developing countries," say the researchers. The high frequency of NoV infection among TD cases examined in this study suggests that fu...Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
...ignal. The resulting image reveals dark areas that indicate the presence of the MRI reporter. "Our technology is adaptable to monitor gene expression in many tissue types. You could link this MRI reporter gene to any other gene of interest, including therapeutic genes for diseases like cancer and arthritis, ...Joslin Diabetes Center scientists find genetic defects
...chips and the genome scan converged. Overlap would indicate the regions and genes that affect tolerance. In the mice with diabetes, two findings emerged -- a distinct decrease of activity in regions that governed the elimination of errant T-cells, and an increase of activity promoting their survival. The safe...NASA study finds soot may be changing the Arctic environment
...the past two decades, but the computer simulations indicate increasing emissions from South Asia have made up for some of the reduced Eurasian pollution. Koch and Hansen suggest Southern Asia also makes the greatest contribution to soot deposited on Greenland. NASA sponsored efforts using satellite data and ...First real-time view of developing neurons reveals surprises, say Stanford researchers
...population of neurons turned fluorescent colors to indicate their activity. Moving the square the reverse direction triggered a different population of neurons to light up. "At first we felt like we let some air out of our own tires with this finding," said Smith. His previous work had supported the prevailin...Scientists identify genetic pathways essential to RNA interference
...luding the repair of DNA damage. "These new steps indicate there is more to RNAi than RNA destruction," says Kim. "And the connection to DNA damage pathways, which was totally unexpected, suggests a potential connection between RNAi and the control of cell division in cancer." The researchers note that bet...Plant hemoglobins: Oxygen handlers critical for nitrogen fixation
...these proteins in plants. The results of the study indicate that symbiotic hemoglobins are important for oxygen transport and energy metabolism in plant root nodules. Furthermore, these proteins help to maintain free-oxygen concentrations in nodules at levels low enough to avoid damage of oxygen-sensitive nit...'You can't buy conservation,' suggests survey of Africa's rain forest parks
...The survey's authors also said that their findings indicate that careful ecological and compliance monitoring ...her than throwing money into development, our data indicate that greater park success arises from treating local people as good neighbors and partners in park c...Balancing act at chromosome ends
...addition of the ubiquitin moieties. These results indicate that two opposing forces in human cells influence basal levels of active hTERT. The first is an interaction with Hsp90 that promotes this activity and the other is protein degradation, mediated by MKRN1 and the balance of these two maintains cellular...Two-part blood pressure control suggests new approach to hypertension therapy
...parable to mice fed a normal diet. "These findings indicate that angiotensin receptors in the kidney have unique and non-redundant actions in blood pressure control," Coffman said. "However, receptors outside the kidney also make a unique contribution to blood pressure homeostasis that is virtually equivalent...NASH clinical research network launches new trial for treatment of liver disease
...verse the progression of NASH. Other pilot studies indicate that patients with this liver disease show improvement by following a regimen of balanced diet and exercise and also respond favorably to treatment with antioxidants such as vitamin E. The first two clinical trials for the NASH Clinical Research Netw...Highlights of the April 2005 Journal of the American Dietetic Association
...search on picky eating is limited, recent findings indicate that prior food experience plays a role in picky eating," according to the researchers, who add that duration of breast feeding and mothers' consumption of vegetables are both "negatively related" to picky eating. The researchers studied dietary pat...Was Agns Sorel, the first official royal mistress of France, poisoned?
...sed at that period against these worms. This could indicate that she was trying to heal herself by taking medicines and that she ingested too high a dose of these, which produced her death. Other possibilities include the fact that mercury appeared as a result of mummification or contamination from the surrou...