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Tag: "found" at biology news

Fat fish put obesity on the hook

...ealth and Science University in Portland, OR, have found a new way fish can help eliminate obesity. In a study to be published in the July 2007 print issue of The FASEB Journal, researchers describe the first genetic model of obesity in a fish. Having this model should greatly accelerate the development of...

How 'memory' T cells curb the spread of viruses throughout the body

...arget cells inside the lymph node. “In fact we found that memory CD8 T cells already killed target cells in the lymph node and decreased viral spread to the liver and spleen when the virus just barely started to multiply.” Thus, memory CD8 T cells do not prevent infection; but prevent disease partly...

Human genetic 'deserts' are teeming with significant life

...e, University of Geneva, Geneva, Switzerland. “We found that the vast majority of the protein coding genes we studied utilised often in a tissue-specific manner previously unknown set of exons [the regions of DNA within a gene that are transcribed to messenger RNA] outside the current boundaries of the an...

Researchers identify protein pathway involved in Parkinson disease development

Scientists have found a novel signaling pathway in cells that is altered...es or genetic mutations. The Emory researchers found that the mitochondrial protein PINK1 normally protects cells from oxidative stress and promotes cell...

Children of smokers have more than 5 times higher levels of a nicotine toxin

...e in Childhood. Having a mother that smokes was found to have the biggest independent effect on cotinine in the urine – quadrupling it. Having a smoking father doubled the amount of cotinine, one of chemicals produced when the body breaks down nicotine from inhaled smoke to get rid of it. Sleeping w...

CU study reveals why starling females cheat

...dings of the Royal Society of London B. The study found that superb starling females (Lamprotornis superbus) cheat on their mates for a variety of reasons. Some females mate with subordinate males from within their social group when they need help to raise their chicks. (Superb starlings are cooperative b...

Surprising origin of cell's internal highways

...tric, these microtubules are directional." They found that microtubules originating at the Golgi are dir...e molecular mechanisms governing the process. They found that proteins normally associated with the plus ends of microtubules, called CLASPs, localize to a s...

Researchers develop buckyballs to fight allergy

...promoting an allergic response. The researchers found that the unique structure of the buckyball enables it to bind to free radicals dramatically better than any anti-oxidant currently available, such as vitamin E. Free radicals are molecules that cause oxidative stress, which experts believe may be the...

Turn-ons and turn-offs for neurons

...he adult brain. Intriguingly, Hasan and colleagues found that gene silencing in the adult brain can be avoided by making neurons produce high levels of gene-specific activators which facilitate “un-silencing” of previously silenced genes. These findings have important implications in experimental research ...

Helping chlorine-eating bacteria clean up toxic waste

...the organisms." For example, she said, it has been found that Dehalococcoides needs vitamin B-12, so the vi...des. If genes that are important in our strain are found in others ... then we can do the same experiments with the others." Finding which genes are at work ...

Male circumcision overstated as prevention tool against AIDS

... scientific journal PLoS ONE, male circumcision is found to be much less important as a deterrent to the gl...e circumcision, which in previous studies had been found to be important in controlling AIDS, becomes statistically irrelevant once the study controls for th...

Revealed -- Mosquito genes that could be controlling the spread of killer viruses

...aring the two different mosquitoes, the scientists found some similarities in the genes controlling their respective immune systems, but also numerous differences. The team aims to discover which of these genetic differences could explain why one type of mosquito transmits dengue and yellow fevers, while t...

Ancient retrovirus sheds light on modern pandemic

...s divisions at the Hutchinson Center. "However, we found that during primate evolution, this innate immunit...t the University of Washington led by Evan Eichler found the largest difference overall between the chimp and human genomes was the presence or absence of Pt...

Scientists close in on missing carbon sink

...for decades but never before synthesized. The team found that some 40 percent of the carbon dioxide assumed...s generated by the computer models. The scientists found that most of the models significantly underestimated the airborne concentrations of carbon dioxide i...

Putting feelings into words produces therapeutic effects in the brain

...UCLA colleagues — Lieberman, Eisenberger and Way — found that during the labeling of emotions, the right ve...ire with the results of the labeling study. “We found the more mindful you are, the more activation you have in the right ventrolateral prefrontal cortex ...

New vaccine prevents CMV infection and disease in mice

... normal response to the virus, and we hope to have found an ‘Achilles’ heel’ in the defenses that the virus...r by misdirecting the host’s immune responses. We found a way to teach the host immune system to not be tricked by the virus.” She added that the next step...

St. Jude study shows genes play an unexpected role in their own activation

...ually to activating a specific gene. The team also found evidence that other proteins can act as back-up co-factors for CBP/p300. “This more complex view of how CREB works may help us understand how this single transcription factor can stimulate many different genes, depending on which tissues are using...

Definitive evidence found of a swimming dinosaur

...e behavior. Several earlier discoveries were later found to have been produced on dry ground or categorized as ghost traces, possible undertracks preserved in lower layers of sediment. "The trackway at La Virgen del Campo opens the door to several new areas of research," said Costeur. "New biomechanica...

Adult stem cells from human cord umbilical cord blood successfully engineered to make insulin

...hought to exist only in embryonic cells. They also found that, just as embryonic cells have been shown to d...chers suggested, because although insulin is often found in the growth media with which the cells are nurtured and is often taken up by such cells, the prese...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

Early-stage research has found that a new gene therapy can nearly eliminate arthr...result of aging. In the current study, researchers found that one injection of a newly designed gene therapy relieved 100 percent of osteoarthritic pain in t...

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