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Tag: "released" at biology news

Gene controlling circadian rhythms linked to drug addiction

... of enjoyment from certain activities. Dopamine is released by naturally rewarding experiences such as food, s... "We also found that more dopamine is produced and released in these mice under normal conditions and particularly after exposure to cocaine." Dr. Eric Nestler...

Study shows eutrophic lakes may not recover for a millennium

...sing far more phosphorus to the soil than would be released by weathering." Restoring water quality is unlikely unless soil erosion is greatly reduced, phosphorus inputs are checked, and new technologies are developed for reducing phosphorus content of over-enriched soils, the report says. "This type of eutr...

Beauty queens urge girls not to sacrifice their bones

...prostate cancer). At a related media seminar, IOF released a new publication "Move it or Lose it" which looks at the impact of weight-bearing exercise on building strong bones. Professor Helmut Minne, an IOF Board member and author of the report, noted that, among many dramatic conclusions, in girls the bon...

US Army plans to bulk-buy anthrax

...etermine how effectively anthrax is dispersed when released from bombs or crop-spraying aircraft. "I can definitely see them testing biological weapons delivery systems for threat assessment," says Hammond. Whatever use it is put to, however, the move could be seen as highly provocative by other nations, he ...

The synapse is a shotgun

...showed that if we assumed that neurotransmitter is released only from vesicles in active zones, where everybod...nal textbook view -- in which all the vesicles are released at the active zone -- that's taken for granted now." The function of shotgun neurotransmitter relea...

Researchers create infectious hepatitis C virus in a test tube

...en joined with new protein components before being released from the liver cell to infect other cells. Lindenbach, Rice and their colleagues named their infectious cell culture virus HCVcc. Already HCVcc is yielding new knowledge about HCV. In a separate set of experiments, the researchers used HCVcc to conf...

Industrial contaminants spread by seabirds in High Arctic, new Canadian study shows

...he contaminants accumulate in their bodies and are released on land." The study took place at Cape Vera on northern Devon Island in the Canadian High Arctic, far from industrial and agricultural sources of pollutants. However, chemicals are emitted into the air and oceans from the populated parts of the glob...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

...lows of moist air at higher altitudes, with energy released as rainy thunderstorms. Envisat carries both optical and radar instruments, enabling researchers to observe high-atmosphere cloud structure and pressure in the visible and infrared spectrum, while at the same time using radar backscatter to measure...

Research suggests fitness of Florida panthers improved by limited breeding with Texas animals

...xas female panthers fitted with radio collars were released in each of the four sections of South Florida where Florida panthers were known to be living, the authors wrote. Five of these eight cats are known to have produced hybrid kittens. By 2003, all three of the surviving Texas adults had been removed fro...

UCSD study clarifies insulin's role in blocking release of energy in patients with type II diabetes

...e triglyceride instead of breaking down the fat as released energy. “Somehow, insulin knows how to specifically block catecholamine-induced PKA, but not other molecules,?said Christopher Hupfeld, assistant professor of Medicine in the UCSD Division of Endocrinology and Metabolism and a co-author of the paper...

Vineyard weeds found to host Pierce's disease of grapes

New research just released in the September issue of Plant Disease suggests that weeds commonly found in California's wine country may enable the spread of Pierce's disease of grapes, one of the most destructive plant diseases affecting grapes. Pierce's disease is caused by X...

After the yeast is gone bacteria continue to develop flavor of sparkling wine

...e detected in both sparkling wines. "The products released by the yeast cells affect wine flavor and serve as nutrients for the growth of bacteria. Although yeasts have the dominating influence on the chemical composition of wine, some changes which influence the sensory quality and consumer acceptability of...

Researchers find molecule that inhibits regrowth of spinal nerve cells

...lity of nerve cells to grow through myelin that is released when the spinal cord is damaged. While other myeli...nerve cells. After a spinal-cord injury, myelin is released into the tissues. Not only does myelin encourage the growth of scars ?called glial scars ?which phys...

Public release of pig genomic sequences

...e the public release of pig genomic sequences. The released sequence data include 3.84 million pieces of the g...stages have been analyzed. These sequences will be released in the near future together with a publication on pig gene expression. This far, the pig sequence d...

‘Blue Brain?project explores thought at molecular level

...e the public release of pig genomic sequences. The released sequence data include 3.84 million pieces of the g...stages have been analyzed. These sequences will be released in the near future together with a publication on pig gene expression. This far, the pig sequence d...

Researchers discover how malaria parasite disperses from red blood cells

...il the cell ruptures and releases them. The newly released merozoites infect still other cells, and the process begins again. To conduct the study, the researchers stained red blood cells infected with P. falciparum with two kinds of dye, explained the study's senior author, Joshua Zimmerberg, M.D., Ph.D....

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...l renoprotective capacity of cytokines temporarily released by MSC. * Two clinical efforts are planned. F...ovement of tissue injury by as yet unknown factors released by them." * Future studies "will also have to define the possible contribution to organ protect...

Toxic flood lifts lid on common urban pollution problem

...the retreating flood. Early September test results released late last week showed high levels of bacteria, lead and harmful levels of chemicals including arsenic, according to the Environmental Protection Agency. While the sources of these and other contaminants remain under investigation, public scrutiny ha...

Variant prion protein causes infection but no symptoms

...S. Fauci, M.D. A paper describing the research was released online today by the journal Science. RML virologist Bruce Chesebro, M.D., directed the project. Other key co-authors from the Hamilton, MT, RML laboratory include Richard Race, D.V.M., and Gerald Baron, Ph.D. Their collaborators included Michael Olds...

India's smoking gun: Dino-killing eruptions

...ith the climate of the Earth - if they erupted and released climate-changing gases quickly enough. French and ...e as 30,000 years. This is enough to have possibly released a climate-altering amount of sulfur gases, says Chenet. An estimate of just how much gas is still be...

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