Tag: "performs" at biology news

UNC-CH Researchers Discover Key Cancer Control Mechanism

... a10. He is interested in the research because he performs surgery on head- andneck-cancer patients. "The fact that one gene makes two products that control two major tumorsuppressers I think has some potentially huge implications for cancerdevelopment and possibly future treatments," the surgeon sai...

CAK Activation Of Plant Cell Cycle: Scientists Find Another Piece In The Jigsaw Puzzle To Help Explain Why Plants Do Not Develop Cancer Spontaneously

...ranscription). The newly identified plant CAK thus performs a novel type of intermediate function which may highlight some important differences between the mechanisms regulating cell division in fungi, plants, and animals....

Biochemists Gain Crystal-Clear Insight into 'Ancient' Enzyme

...n and an RNA- work together to form an enzyme that performs one of the fundamental tasksof constructing the protein-making machinery of the cell. Their findings suggest that the partnership between the two moleculesmight represent an ancient remnant of an early era in life's evolution whenRNA molecules were ...

Master Molecule Forms Brains In Frogs And Elbows In Mice

...d Harland showed that in Xenopus embryos, Noggin performs a critical developmental function: It permits certain cells to become brain and nervous system tissue by blocking alternate pathways that might form other tissues such as skin, for instance. The protein got its name, in fact, when the team found that...

Cell Suicide Prevented By Survival Signals

...heir self-destruction. This "programmed"cell death performs a critical housekeeping function that prevents damaged,malfunctioning or misplaced cells from causing future harm. In some instances, however, the death sentence is commuted and certaincells cheat death. How this happens is still largely a mystery, ...

Discovery Of Mutation May Lead To Help For Male Fertility Problems

... leading researchers to conclude that themorc gene performs a primary regulatory function in male meiosis, the processthat produces sperm. "This uncovers a new point in the regulation of sperm production," saidZinn, who is an investigator in the Eugene McDermott Center for Human Growth andDevelopment....

University Of Pittsburgh Cancer Institute Team Is The First To Uncover Role Of Faulty DNA Repair In Breast Cancer

...creasing the production of another NER enzyme that performs the samefunction," Dr. Latimer said. "In this way, the tumor can effectively repairtreatment-related DNA damage." To accomplish its work, Dr. Latimer's team used fresh tissues taken within fivehours of surgery and grown in culture. A patent...

Computing device to serve as basis for biological computer

...e is the molecular machine of the living cell that performs the final step of interpretation of the genetic code by translating messenger RNA,which is transcribed from DNA, into protein. A key similarity between Shapiro'smechanical computer and the ribosome is that a "program rule" moleculespecifies a comp...

Scientists visualize key molecular interactions that activate the immune response to foreign proteins

... thecomplex molecular dance that the immune system performs to protect our bodiesfrom viruses and other foreign invaders. The work may one day suggest ways tothwart inappropriate immune responses that cause early onset diabetes and play arole in other diseases. "The excitement is that we can now visua...

Study finds reliability problems with nerve test for carpal tunnel syndrome

...an produce very different results depending on who performs it. For the estimated 850,000 Americans who visit their doctors each year complaining of carpal tunnel-like symptoms, and the 260,000 who have corrective wrist surgery annually, the study shows the importance of being examined by an experienced docto...

Prions are modular

...n-determining region and a functional domain which performs some function. "Once the prion part misfolds it entices other proteins of the same kind to fold incorrectly and they can clump together," Lindquist said. "The functional part may still be active. But if its job needs to be done in a particular plac...

Brookhaven Lab collaboration determines the atomic structure of a key enzyme called a 'biological blowtorch'

...termined the atomic structure of a key enzyme that performs several important chemical jobs in the body, including synthesizing estrogen and detoxifying chemicals as they enter the body. In addition, the enzyme may have medical and commercial applications in cancer therapy, in reducing pollution in industria...

Detroit researcher receives national award

...rugs and fats, makes cancer-causing compounds, and performs a host of other functions. To solve for the unknowns in the various reaction steps, Newcomb substitutes what he does know: the rates at which molecules he has built, called probes, react with P450. His group uses short bursts of laser light to 'time'...

Nerve protein shown crucial to sensations of pain from heat, injury

... that the protein, knownas the capsaicin receptor, performs this function in living animals, and itboosts confidence that blocking the receptor would ease some kinds of pain. The research, led by molecular biologists and neuroscientists at UC SanFrancisco, also showed that the receptor contributes to the pain...

Nanofabricated 'gel' separates DNA

... DNA fragments by length. The silicon-based device performs the same function as the cumbersome gel electrophoresis process biologists now use but in as little as 15 to 30 minutes, rather than the 12 to 24 hours the gel process typically requires. It also can be more precisely controlled, the researchers say...

Study suggests ERT stimulates blood flow to key memory centers in brain

...t activity in particular brain regions as a person performs a task or responds to stimuli. Before the PET scan, the women, 12 who were receiving ERT as part of their regular medical treatment and 16 who were not, were asked to view 20 objects and a list of 20 words on a computer screen. During the scans, the ...

Genetic cause of lymphedema discovered by University of Pittsburgh researchers reported in Nature Genetics

...s stretching throughout the body, the lymph system performs the mundane but critical task of mopping up excess fluid as well as molecules and cells that stray from nearby blood vessels. As with other organs, development of the lymph system is tightly regulated. One protein involved in the process is VEGF-C, ...

UCSF research reveals how the embryo brings its heart together

...he zebrafish heart, Stainier suggests, it probably performs the same function in the human embryo. "And as we start to understand the molecular pathways involving S1P by studying heart formation in zebrafish, we should learn something about how it regulates other processes such as wound healing," he says. ...

New fossil found in Mongolia provides insight into the origin of living birds and the evolution of flight

...earm. This muscle arrangement seen in living birds performs a key role in transition from the upstroke to the down stroke. "This automated part of the flight stroke was thought to be present before the origin of flight in other non-flighted theropod dinosaurs," Clarke said. "While other parts of the flight st...

Key enzyme responsible for fat development discovered

...rol its fate, the study shows that this key enzyme performs different tasks in different environments. It is produced in the liver and migrates continuously through the bloodstream. Until now, it was thought to be primarily involved in blood clotting and blood pressure maintenance. But when it enters tissues,...

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(Date:10/30/2014)... day provide new treatments for injuries and damage to ... Cartilage, for example, is a hard material that caps ... smoothly. UC Davis biomedical engineers, exploring ways to toughen ... the body, report new developments this week in the ... . , "The problem with engineered tissue is that ...
(Date:10/30/2014)... , A mathematical model developed by NIH grantees predicts ... to prevent HIV infection via vaginal sex, whereas just ... infection via anal sex. This finding helps explain why ... PrEP, in women failed to show efficacy. Participants in ... of Truvada and tenofovir (another antiretroviral) for HIV prevention ...
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(Date:10/30/2014)... HealthDay Reporter WEDNESDAY, Oct. ... -- one of three West African nations ravaged by the ... Wednesday. Dr. Bruce Aylward, WHO,s assistant director general, said ... Liberia and no increase in laboratory-confirmed cases. He said he ... epidemic may be making some progress, The New York ...
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