Tag: "other" at biology news
New method studies living bacterial cells
...g whether a bacterial cell is living or dead. "No other
technique has been capable of determining the metabolic state of a single hydrated cell and the chemical speciation of metals on, in or near a bacterial cell," Kemner said. "The achievements of this study have the potential to revolutionize the way s...
Gene for common form of Parkinson's pinpointed
...urred by the knowledge that earlier discoveries of other
genetic mutations underlying rare forms of PD had ... called a kinase. Such enzymatic switches activate other
protein enzymes by attaching a phosphate to them -- called phosphorylation. "Because phosphorylation...
Reductions in blood oxygen levels in newborns could contribute to ADHD development
...elp explain why amphetamines, such as Ritalin, and other
non-amphetamines, such as Wellbutrin, that increase levels of brain dopamine are an effective treatment for children with ADHD," Dr. Decker said. "So far scientists haven't sorted out which neurotransmitters are responsible for this effect, but if t...
Brain differences in adolescents, psychopaths, lend to their impulsive, risk-taking behavior
...ith new members of the opposite sex." In other
work, scientists are using the extreme example of risk-taking among psychopaths to elucidate normal behavior and brain structure and function. Prominent characteristics of psychopaths are their poor decision-making ability and heightened risk taking....
Deciphering an autism mystery
...less able to discriminate similar sounds than were other
children. The new research was presented at the 3...ntrol the expression of dozens or even hundreds of other
genes. Therefore, a variation in EN2 could have far-reaching effects on brain development and behavi...
Early life stress harms mental function and immune system in later years
...life, long after the stress has disappeared. Still other
studies are unraveling the cellular basis for how ...nes to prevent the deficits," Baram says. In other
work, researchers showed in rats that stress during the last third of pregnancy affects the ability ...
Calorie restriction leads to some brain benefits but not others in mice
...m also is exploring the possibility that adjusting other
dietary factors may enhance and add to the calorie restriction diet's benefits. The researchers also have begun testing the protective effects of potent antioxidants on aging mice fed normal diets to see whether they too can prevent or reverse some o...
Pesticides may promote Parkinson's disease and exercise may offer protection
...reenamyre's laboratory at Emory University and the other
at the University of Washington laboratory of Marj...riod of 18 months in one case and 19 months in the other
before the Parkinson's-like pathology developed. When the monkeys' brains were later examined, the s...
OHSU scientists identify key gene that delays female puberty
... animal. Ojeda and his colleagues now are tracking other
genes that might interact with TTF-1 in the brain to control the onset of puberty. "While observational studies are required to determine the role of TTF-1 in humans, we know that children recently described to have mutations of this gene suffer fr...
Retinal stem cells can regenerate after transplant
... so we can inhibit them or protect the cells." The other
researchers involved in this study are U of T's Prof. Roderick McInnes, and post-doctoral fellow Tomoyuki Inoue, Department of Medical Genetics and Microbiology; Brigitte Angenieux and Yvan Arsenijevic, Hopital Ophtalmique Jules Gonin, Lausanne, Swit...
Nitric oxide is essential for animal development
...ction; because these genes may compensate for each other
if one of them is mutated, an essential function for NO would be masked. In the new work, researchers Grigori Enikolopov, Michael Regulski, and their colleagues from the Cold Spring Harbor Laboratory show that, indeed, NOS is crucial for development...
Soaking up signal: Endocytosis controls spreading and effective signaling range of Fgf8 protein
... actively influence the availability of signals to other
target cells through uptake and subsequent degradation of growth factors and other
Singled out: Spotting mutant neurons in normal brains offers clues to Fragile X
...turally abnormal and make defective connections to other
neurons. The work is reported by a team led by Ken...Fragile X gene product regulates the expression of other
proteins. However, the link between this molecular function and the Fragile X brain defect has remai...
Sandbagging cancer in the bloodstream
... cancer because it allows tumor cells to spread to other
parts of the body (See Supporting Material: Cancer... bricks lining a subterranean tunnel. Cheresh and other
basic science researchers over the past decades have identified a number of the adhesion molecules t...
Cars, not crops, should be chief targets in reducing greenhouse gases
...drogen vehicles, which now require fossil fuels or other
sources of energy to generate the hydrogen. Coupled with changes in the way that agricultural lands are managed, doubling the fuel efficiency of our nation's vehicles seems a logical first step in balancing the carbon budget." Schlesin...
New center to map DNA of key lab mice
...tic basis for differences in response to drugs and other
environmental factors. Other initiatives include ...al divisions within NIEHS. It also will align with other
research initiatives within the National Institutes of Health that use genetically-modified organism...
Farmers don't need a new superstar toxin to fight bugs
...usceptible insects from the refuge breed with each other
or with resistant insects, the high-toxicity genet...an become practically applicable." The other
researchers are Larry Murdock, Purdue entomology professor; Patrick Gaffney, formerly of the Univers...
Bug's-eye-view of urinary tract reveals E.coli infection genes
... candidate virulence genes, which are not found in other
strains of non-pathogenic E. coli. "The most highl... gene called type 1 fimbriae, but hardly any of 11 other
fimbrial gene clusters expressed during the infection. And we found unusual sugars taken up by E. co...
Insects implicated in the evolution of new human infectious diseases
Insects and other
invertebrates are the arena for the evolution of n...suggesting that similar scenarios are possible for other
insect-associated microbes. The researchers suggest the reason that unusual infections, such as thos...
Predicting infection risk of mosquito-borne disease
...t. The proportion of infectious mosquitoes, on the other
hand, reflects the age of the mosquito population: it peaks where older mosquitoes are found--farther from breeding sites--and when populations are declining. The combination of these factors results in, for example, the surprising prediction that th...
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