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Tag: "influencing" at biology news

Alcohol's effects on gene expression in the central nervous system

...ehavioral responses to alcohol as well as possibly influencing drinking behavior. "Thus far, genes that appear to be responsive to alcohol include genes involved in the intracellular signaling process (which can alter how the neuron functions), neuropeptide signaling (which modulates nerve cell activity), and m...

Research Using Mouse Models Reveals A Novel Key Player In The Initiation Of Colon Cancer

...d a study that identifies another molecular player influencing the initiation of colon cancers. This study will be published in the February 1 issue of the journal Genes and Development. An animal model with an inactivating mutation within the mouse equivalent of the APC gene displays very similar pathology as...

DNA constraints control structure of attached macromolecules

... like to control macroscopic assembly processes by influencing the shapes of self-assembling molecular components." ...

UN successfully tests 'green' pesticide against locusts

... like to control macroscopic assembly processes by influencing the shapes of self-assembling molecular components." ...

Health costs soar as 60 million Americans classed as obese

... like to control macroscopic assembly processes by influencing the shapes of self-assembling molecular components." ...

Study casts doubt on 'Snowball Earth' theory

...ogy program, one of a handful in the country, with influencing her thinking. "They really try to synthesize between geology and biology. It was a new way to attack the problem." Corsetti agrees. "The climate of collaboration between geologists and biologists," he said, "is unusually good at USC ?it was this wa...

Muscle repair: Making a good system better, faster; implications for aging, disease

...sured." Indeed the paper says that "in addition to influencing myogenesis directly, PAI-1 may modulate regeneration by regulating the inflammatory response (and) may also modulate muscle regeneration through the regulation of extracellular matrix turnover (or) by regulating the bioactivity of a variety of growth...

Single gene is genetic switch for fly sexual behavior

...mplex anatomical structures like eyes or limbs, by influencing sometimes hundreds of other genes, Dickson notes. "I don't see any good reason why innate behaviors, which are a consequence of how the nervous system is built, should be any different. Indeed, I think that is what our work shows," he says. In a se...

NCAR analysis shows widespread pollution from 2004 wildfires

...ts human health in addition to damaging plants and influencing climate, is formed from reactions involving atmospheric pollutants, including carbon monoxide, in the presence of sunlight. Both pollutants are monitored by the Environmental Protection Agency. However, scientists have been unable to precisely determ...

Stem cell microenvironment reverses malignant melanoma

...s within the hESC microenvironment responsible for influencing tumor cell fate and reversing the cancerous properties of metastatic tumor cells, such as melanoma," said Mary J. C. Hendrix, in whose laboratories at Children's Memorial Research Center the experiments were conducted. An article describing the fin...

The brain is broadly wired for reproduction

...prising finding suggests that the GnRH neurons are influencing the processing of odor and pheromone signals in the brain. It may be the brain's way of saying whether or not it wants to receive particular sensory information -- depending on the reproductive circumstances, such as the stage of the female's estrus ...

Tropical Atlantic cooling and African deforestation correlate to drought, report scientists

...anges in the modes of agricultural production, and influencing the fall or rise of civilizations." Weldeab points out that the past 50 years are marked by deforestation and overgrazing much greater than that of the past, thus disturbing the climate system that results from the coupling of sea surface temperatur...

Researchers map of genetic variations implicated in disease

...esource to assist the discovery of genetic factors influencing these medical traits and to shed light on the evolution of the MHC. Access to complete sequences across several MHC haplotypes that exhibit differences in disease susceptibility will help researchers to home in on specific variants (susceptibility al...

Ernst Mayr's theory illustrated in genetic epidemiology studies

...nes, the apparent importance of these two genes in influencing cholesterol levels can be totally reversed. Such alterations, Templeton said, are the fundamental basis of genetic revolution. A school of biologists who goes back to the English biologist R. A. Fisher believes that genes alone inherently are majo...

Engineered mouse mimics cognitive aspects of schizophrenia

...ognitive function in schizophrenics--by indirectly influencing the prefrontal cortex, a major center for cognitive function. To mimic the hyperactive dopamine machinery, the researchers created a genetically altered mouse strain in which dopamine receptors were overexpressed only in the striatum. What's more, t...

Study by Einstein researchers could lead to a novel strategy for treating obesity

...e suspected of being one of the critical nutrients influencing hypothalamic regulation of eating behavior. Previous studies had shown that hypothalamic levels of malonyl CoA increase markedly after meals and are suppressed by fasting. The Einstein researchers wanted to know whether sustained suppression of thi...

Leave it to salmon to leave no stone unturned

...ng the amount of algae there is to eat to possibly influencing when aquatic insects emerge, spawning salmon can be extraordinary "environmental engineers," says Jonathan Moore, a UW graduate student in aquatic and fishery sciences. Ignoring this role can cause missteps in managing salmon runs or attempting to r...

Variation in bitter-taste receptor gene increases risk for alcoholism

... 7 as a region where there was likely to be a gene influencing alcoholism risk," says principal investigator Alison M. Goate, D. Phil., the Samuel and Mae S. Ludwig Professor of Genetics in Psychiatry at Washington University. "There's a cluster of bitter-taste receptor genes on that chromosome, and there have b...

Genes affecting blood pressure change as children become adults

...nstead on genes and environmental factors directly influencing blood pressure and hemodynamics. The huge twin coh... Dr. Snieder says. However, if factors negatively influencing blood pressure in blacks can be identified, it could contribute to solving health disparities such a...

Thinner and younger

...n, we'll have a pretty good idea that it's somehow influencing the aging process at the cellular level." Currently, Holloszy and Fontana are beginning to recruit volunteers for Phase II of the CALERIE study. ...

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