Tag: "helps" at biology news

Blocking VEGF can enhance radiation therapy

...vessels to supply the radiation-damaged tumor,VEGF helps the cancer bounce back from radiation therapy, contributing to atumor's ability to resist this form of treatment. So Weichselbaum's team compared the anti-tumor effects of anti-VEGF alone,radiation alone and the two in combination on mice with severa...

When opposites don't attract: Understanding why may support new biomaterials, Science paper suggests

...hichoppositely charged objects do or don't attract helps us understand basicstrategies of self-assembly, which may be used to design new drug carriers orsmart materials that respond to their environment." Dan's article--coauthored by UD postdoctoral researcher Helim Aranda-Espinozaand by Yi Chen, Tom C. Lu...

MTU researchers develop new software to help clean up contamination sites

...ial Treatment Technologies (CenCITT). The software helps remediators develop the best actionplan for cleaning up their unique contamination site, whether it be insecticidesin a lake, herbicides in a city's wastewater, or toxic, air-borne chemicals in apaint booth. The software lets environmental engineers ...

A new view of visual system development

...sual experience occurs, spontaneous neuralactivity helps to organize the visual cortex into its distinct pattern ofpatches and stripes. Building upon these studies, investigators have developed computer modelsthat show how spontaneous neural activity may help to wire the visual system,and in the process ...

Gene alterations may predict response to new cancer therapy

...(PPAR-gamma or PPARg), that helps fat cells mature. The protein is also important for the metabolism of fats and sugars bycells. The study was published in a recent issue of MolecularCell. Eng, who is director of ...

"All my friends dream of artificial limbs": US, Russian nuclear labs work with prosthetics company to develop replacement knee

...rocessor control, and materials analysis." It also helps out the prosthetics industry, which is dominated by smallcompanies with relatively small technical support. While prosthetic companiescertainly have worked to improve their devices, says Lieberman, they lack theresources to perform the type of testi...

Growth factor may determine who grows new blood vessels that protect against heart attacks

...ability to produce a growth factor, a protein that helps togenerate new blood vessels, according to a paper in Circulation: Journal of theAmerican Heart Association. Heart specialists have long been puzzled by the fact that some patients are ableto form networks of new blood vessels, called coronary arter...

Naked mole-rats break the rules on nursing

...embers. That quirk in naked mole-rat society also helps explain the equanimityat feeding time, Sherman says. "The queen is larger to begin with, and she is kept very safe and healthy by hercolony mates," Sherman says. "She is able to concentrate all her physiologicalresources on those huge litters, on ge...

Single switch triggers two immune system genes

...omehow join toform a "transposase," an enzyme that helps snip apart and rearrange genes thatcode for two critical weapons in the immune system's arsenal. These weapons areprotein antibodies produced by the immune system's B cells and receptors foundon the surface of T cells. Antibodies are molecules that ...

Smog impacts: Hurtling through airways, tiny particles may do more damage than previously assumed

...ere injected with a bolus ofparticles. Their study helps explain the impact of air pollution on humanhealth. And, Sarangapani says, it should prove useful to clinicians who use thebolus-injection technique to non-invasively assess the lung function of peoplewith asthma and others with impaired respiratory ...

Immune molecule found to kill indirectly by closing receptor to live-saving help

...-- the growth hormone that normally sits there and helps the cell tosurvive." Putting the knowledge into clinical use, however, will take time. "Drugdelivery is the key," Kelley said. "Targeting more IGF specifically to thebrain may not be the answer. It may be that we should target the TNF with aninhibi...

Researcher finds way to kill bacteria in tiny places

...lves by building aslime layer -- a biofilm -- that helps them stick to the surfaces and protectsthem from penetration by outside elements," he adds. "Dextran is a result ofone made by some of these bacteria." Although these thin layers of microorganisms can show up on almost anysurface, they're particul...

Rescuing brain cells in stroke patients from the brink of suicide

...le in our everyday lives. Thenormal version of P53 helps our bodies suppress cancer, and HIF1a helps us copewith low-oxygen conditions, spurring the bone marrow to produce moreoxygen-carrying red blood...

Cockroaches beware! This house has been treated with catnip

...an old wives' tale:Placing catnip around the house helps keep cockroaches away. Today at the national meeting of the American Chemical Society, the world'slargest scientific society, Iowa State University researchers Chris Peterson andJoel Coats, Ph.D., reported that cockroaches are repelled by catnip -spe...

Changes for chickens? New hybrid corn helps reduce phosphorus in poultry litter, UD scientists report

...re highlyavailable phosphorus, plus an enzyme that helps chickens digest the mineral,University of Delaware and U.S. Department of Agriculture scientists say. Total phosphorus levels dropped by 41 percent after chickens ate a modified dietcontaining the hybrid corn, reduced levels of supplemental phosphoru...

Primate genus sheds light on great ape and human origins, as reported in Science

...ius , reported in the 27 August issue of Science , helps reshape the complex evolutionary tree around the time whenthe ancestor to humans and great apes arose, and reveals that one species, Kenyapithecus wickeri , is more closely related to that ancestor thanpreviously thought. The ape family tree has dwin...

University of Florida researchers test drug from 'transgenic sheep' in study at Shands at UF teaching hospital

...ho have a deficiency of the protectiveprotein that helps to keep lung inflammation and damage in check. Such a new supply is critical: Currently, only a limited amount is availablethrough blood plasma donations, so many eligible candidates must do without thetherapy, which is delivered intravenously at an ...

First gene defect identified for precursor to adult diabetes

...f adult diabetes in theUnited States. The research helps clarify the murky understanding of what causesinsulin resistance and diabetes. It identifies a target -- the gene's abnormalprotein -- for potential new drugs to treat both conditions. The research, published in the September issue of the j...

Scientists create smart mouse

...logical underpinnings of memory, said Tsien's work helps answer a hotlydebated question in memory research. Many scientists argue that memories arecreated when two neurons form a strong connection, called long-term potentiationor LTP. Others believe LTP is not necessary for learning. Tsien's work "is oneof...

Fragment of AIDS virus may be used to deliver therapeutic proteins to cells

...galactosidase--into mouse cells.Beta-galactosidase helps break down complex sugars, including a stain calledX-Gal that turns blue when it is broken down by beta-galactosidase. "We held up the tissue samples from the mice and said 'Wow,'" says Dowdy."All of the tissues were blue, indicating that the enzym...

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