'License to kill' enables powerful immune attack cells in mice
...hat a group of important immune system cells has a surprising resemblance to cinematic British superspy James Bond: the cells receive a "license" that allows them to unleash their most potent attacks on enemies. This licensing process apparently helps reduce the chances that the cells will erroneously direct t...USGS Science at Ecological Society of America
...interactions by altering prey behavior, comprise a surprising fraction of ecosystem biomass. Infectious diseases may keep common species in balance. Some parasites may even make excellent indicators of ecosystem health because they may reflect abundant and diverse host communities. Latitudinal Variation in ...Stem cells bring fast direct improvement, without differentiation, in acute renal failure
...s preserved. The researchers conceded that it "is surprising that the very transient presence of MSC in the injured kidney, as we document, is sufficient to greatly ameliorate the course" of I/R ARF and also note that the rat model of ARF used in the study is "a suitable if somewhat imperfect model of the most...Using computers and DNA to count bacteria
...velopment for homeland security, emerging diseases surprising our medical communities and lifesaving medicines being extracted from jungle plants, we still don't know what's under our feet. The bacterial communities of every day soil are intensely complex, so diverse and densely populated, that normal measureme...Anti-cancer drugs may hold promise for premature aging disorder
BETHESDA, Md., Mon., Aug. 29, 2005 In a surprising development, a research team led by the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH), has found that a class of experimental anti-cancer drugs also shows promise in laboratory studies for treating ...Human Y chromosome preserves itself better than the chimp Y
...record to examine our past, scientists have seen a surprising difference in the way the male-making chromosomes from the two species cope with the inexorable pressures of evolution. After comparing the Y chromosome sequences of the human and chimpanzee, Howard Hughes Medical Institute researcher David C. Page, ...Dangerous tricksters: Some bacterie use immune cells to reproduce
...ar to tuberculosis in humans. Hence, it is not too surprising that Rhodococcus equi is closely related to the tubercle bacillus (Mycobacterium tuberculosis). Since macrophages are the main target of Rhodococcus in the horse's lung, a lot of rhodococci are found there during an infection. In the Bonn Institute ...JCI table of contents September 1, 2005
...tiple doses of glycolipid. The authors report the surprising finding that alpha-galactosylceramide induces anergy (a state of immune unresponsiveness) in NKT cells, and not activation as seen with a single dose. This anergy is long term, and lasts for at least one month in mice. In a related commentary, Barb...Roadways and parking lots threaten freshwater quality in the northeastern US
... the Institute of Ecosystem Studies, notes, "It is surprising and significant that the long-term record shows that salinity concentrations are going up, even in places where the amount of salt applied has not increased. Concentrations are high in the summer, not just in the winter when salt is applied to melt s...Fresh water affected by salt from deicing roads
... the Institute of Ecosystem Studies, notes, "It is surprising and significant that the long-term record shows that salinity concentrations are going up, even in places where the amount of salt applied has not increased. Concentrations are high in the summer, not just in the winter when salt is applied to melt ...Methane gyrations last 2,000 years show human influnece on atmosphere
...st 2,000 years and probably longer, according to a surprising new study of methane trapped in Antarctic ice cores conducted by an international research team. The study showed wild gyrations of methane from biomass burning from about 1 A.D. to present, said Dominic Ferretti, lead study author and a University ...Discovery that bacterium is phosphate gourmet key clue to what makes it most social of bacteria
...e gourmet. Dr Whitworth also has evidence that the surprising extent of interaction between the three and a half phosphate signalling pathways is also found among the other 140 plus signalling pathways of the bacterium. If three and half pathways are enough to make it a phosphate gourmet, the level of interacti......ists know they're effective but research reveals a surprising ambivalence toward using them, even when cost is not a factor. Malaria vaccine development: Scientists report findings from clinical trials. Insecticide resistance: Scientists find new evidence of mosquitoes overcoming insecticides used in be...Key neural system at risk from fetal alcohol exposure
... are important in producing dopamine, and what was surprising to us was that dopamine was altered in opposite directions" depending on when during gestation the monkey's developing brain was exposed to alcohol. For two groups of monkeys, those exposed during early gestation, when dopamine neurons are first form...Learning how SARS spikes its quarry
... on the receptor, said Harrison. There was nothing surprising about the interaction itself, he noted. However, the studies revealed important new information about two specific amino acids on the spike protein. These were the amino acids that Farzan and his colleagues had previously determined to be the most cr...'Underground' tunnels discovered as means for communication between immune system cells
..., are used to shoot signals to distant cells. This surprising discovery, being reported by two University of Pittsburgh School of Medicine researchers in the September issue of the journal Immunity, may explain how an immune response can be so exquisitely swift. The research not only proves cells other than neu...Study in Royal Society journal on possiblity of human organ regeneration
...osts were fed upon by mosquitoes. Our results are surprising because there is substantial evidence that malaria and many other parasites facultatively and adaptively respond to a variety of other environmental influences. Contact: Dr D Shutler, Acadia University, 24 University Avenue, WOLFVILLE, NOVA SCOTIA, B...NASA technology monitors wildlife habitats from the air
...mote Sensing of the Environment. "Perhaps the most surprising finding was that about 80 percent of the forests that we identified as tall and dense could serve as a suitable habitat for the DFS," said Nelson. "But, ground visits would be needed to determine if each site is suitable for DFS reintroduction." DFS,...A slight difference and significant similarities
...ire, Granola, Linda and Solara varieties exhibit a surprising range of variation. The genetically modified lines from the Dsire variety lie within the same of range of variation as the five conventional varieties. The exception is the higher content of inulin polysaccharides. There was no evidence of any new, u...UCSB researchers discover that the cell's endosomes use a surprising transportation system
...ifornia October 5, 2005 -- Cells have developed a surprising transportation system for their endosomes, according to research published today in Physical Review Letters, "Dynamics and Spatial Organization of Endosomes in Mammalian Cells." By marking endosomes with fluorescent tags and watching them move in liv...