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Tag: "helps" at biology news

Renewed hope for Parkinson's patients

... said Raulet. "It may also be that the Rae1 ligand helps trigger T cell responses that contribute to long term specific immunity. It's certainly an area of research that warrants more study." Other co-authors of the paper are Sandra Orsulic, assistant professor at the Massachusetts General Hospital Center...

A 'dimmer switch' for genes

...-1, a protein known as a transcription factor that helps read genetic information. This factor serves as a cell's librarian, helping find the right genetic instructions. How much information the librarian provides, and how accurate that information is, must be tightly controlled. Without the right informa...

Picky female frogs drive evolution of new species in less than 8,000 years

...nt evolutionary experiments going on. Perhaps that helps explain why places like the Andes are so extraordinarily diverse." Moritz; lead author Conrad Hoskin, a graduate student at the University of Queensland in St. Lucia, Australia; and colleagues Megan Higgie of the University of Queensland and Keith M...

'License to kill' enables powerful immune attack cells in mice

...cks on enemies. This licensing process apparently helps reduce the chances that the cells will erroneously direct their firepower at the body's own tissues, according to researchers at Washington University School of Medicine in St. Louis. The process is very different from other previously identified way...

Prions rapidly 'remodel' good protein into bad, Brown study shows

... viruses and other infectious agents ?the research helps explain the puzzling process of how prions multiply and spread infection. Satpute-Krishnan said the speed of protein conversion was surprising. "The prions were taking all the existing protein and refolding it immediately," she said. "It's a very, v...

Gene that helps mosquitoes fight off malaria parasite identified

...earchers have identified a gene in mosquitoes that helps the insects to fight off infection by the Plasmodium parasite, which causes malaria in humans. Anopheles mosquitoes transmit the malaria parasite to nearly 550 million people worldwide each year with these cases resulting in more than 2 million death...

Protein behind autumn color splendor identified

...ce Center (UPSC) has now identified a protein that helps bring out the color splendor of plants in the fall...he researchers to conclude that the protease FtsH6 helps degrade LHCII. The article is titled "AtFtsH6 is involved in the degradation of the light harvesti...

HIV inserts into human genome using a DNA-associated protein

...pan, a day or less. "We surmise that this strategy helps the virus make hay while the sun is shining, as it...s implies that LEDGF is part of the machinery that helps dictate the placement of retroviral integration sites within chromosomes," says Bushman. Bushman no...

Chernobyl: The true scale of the accident

... Report recommends a new development approach that helps individuals to "take control of their own lives and communities to take control of their own futures." The Governments, the Report states, must streamline and refocus Chernobyl programs through more targeted benefits, elimination of unnecessary benef...

Anti-cancer Compound In Beer Gaining Interest

...ces activity in a "quinone reductase" process that helps the body detoxify carcinogens. And it inhibits tumor growth at an early stage. In recent years, it has also been shown that some prenylflavonoids found in hops are potent phytoestrogens, and could ultimately have value in prevention or treatment of ...

Regenerating worms help elucidate stem cell biology

...ovember 25, 2005, issue of the journal Science, helps scientists understand how stem cells make this process possible. The research, performed at the University of Utah School of Medicine, was carried out by Helen Hay Whitney postdoctoral fellow Peter W. Reddien (now an Associate Member at the Whitehead...

The earliest animals had human-like genes

...imals such as humans and flies. In these cases, it helps to look at living organisms that have preserved many features of their ancestors. Detlev Arendt's group is doing this with a small marine worm called Platynereis dumerlii. "Similar animals are already found in the earliest fossils from the Cambrium, ...

Einstein scientists discover how protein crucial for motion is synthesised at the right place in the cell

... and guide it to the cell's periphery, but it also helps regulate where in the cell the messenger RNA is translated into actin. "The ZBP1 bound to actin's messenger RNA acts like a lock to prevent it from being translated into protein before reaching its destination," explains Dr. Singer. "On arriving a...

Wright bros. upstaged! Dinos invented biplanes

...tely preserved feathered dinosaurs from China also helps to settle a century-old controversy over whether avian flight began in trees (trees-down theory) or on the ground (ground-up theory). These fossils show various transitional stages?from wingless, tree-dwelling theropod dinosaurs to fully winged, acti...

Computer models aid understanding of antibody-dependent enhancement in spread of dengue fever

...ool. "We found that antibody-dependent enhancement helps the dengue virus spread faster, but there are limits to how much the virus can exploit this strategy." According to the computer simulations, antibody-dependent enhancement creates oscillations, or "booms and busts" in the incidence of dengue virus ...

Researchers: Treated wood poses long-term threat

...ates provide decision-makers with information that helps them decide whether or not CCA-treated wood should go into lined or unlined landfills," he said. Unfortunately, however, that won't end the problem. A mathematical model based on the researchers' experiments estimated that between 20 and 50 tons of ...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...apsulates the p53 gene, which makes a protein that helps initiate a self-destruct process called apoptosis in cells with genetic damage. The liposome-antibody complex finds the cancer cell by binding to the transferrin receptor, which is present on the cancer cell surface in high numbers. When this happens...

Researchers know what you were about to say; fMRI used to detect memory storage and retrieval

...fect occurs as a brain area called the hippocampus helps sort through the storage bins of memory, returning the brain to its state at the time of the initial experience. Polyn believes that the knowledge of how the brain uses its memories could be applied to designing more detailed models of memory, which...

New possibilities for flu antiviral and vaccine research emerge from 'Spanish flu' virus

...ich encodes the hemagglutinin surface protein that helps the virus attach to cells and replicate properly. This gene seemed to be responsible for much of the severe lung damage reported in people infected with the Spanish flu. The three genes encoding the viral "polymerase" enzymes, which form the virus' b...

Bacterial protein mimics host to cripple defenses

... death (PCD), causes a cell to commit suicide. PCD helps organisms contain infections, nip potential cancers in the bud, and get rid of old or unneeded cells. However, runaway PCD leads to everything from unseemly spots on tomatoes to Parkinson's and Alzheimer's diseases. BTI Scientist and Cornell Univers...

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