acting 2 2

Tag: "acting" at biology news

Certain fish have a special mating preference

...angerhans studies which don't lay eggs-- selection acting within the female's body that biases fertilization toward males with a particular genital morphology has been largely responsible for the generation of genital diversity. Langerhans's finding, however, contradicts that theory: he has shown that femal...

IMF Launches World’s First DNA Database for Myeloma Patients

...angerhans studies which don't lay eggs-- selection acting within the female's body that biases fertilization toward males with a particular genital morphology has been largely responsible for the generation of genital diversity. Langerhans's finding, however, contradicts that theory: he has shown that femal...

Scripps research scientists identify infertility molecule

...les play a more active role in the mammalian body, acting as signals for many different developmental events and adult physiology. Chun and his colleagues identified the first lysophospholipid receptor about ten years ago, when he was at the University of California, San Diego, and since then eight more of...

Newly discovered genetic disease sheds light on body's water balance

...ral nitrogen compound that encourages urination by acting as an osmotic agent. As water flowed out of their bodies and sodium concentrations returned to normal, both babies recovered. They continue to be followed by the UCSF team. Next Gitelman, Rosenthal and Feldman took blood samples from each baby boy a...

Study: Harmless virus kills some cancers

...r cells as deregulated, meaning they are no longer acting or communicating like normal, healthy cells. It appears that AAV2 is able to recognize cells that have undergone deregulation, infect them, express its own genes, which disrupt the host cell's life cycle and kill it. Scientists have suspected that A...

Why are coyotes getting more aggressive?

...nning under buildings. To report a coyote that is acting strangely or causing a nuisance, call the nearest regional DEC office. For contact information for DEC regional offices, see www.dec.state.ny.us/website/about/abtrull3.html . Related World Wide Web sites: # For more information on coyotes in New Yo...

Physical and functional interaction of key cell growth molecules linked to cancer

... cell growth by transmitting growth factor signals acting outside the cell. EGFR is often present at abnormally elevated levels in human cancer cells. Increased EGFR activity has been linked to metastasis and treatment resistance for aggressive human tumors and, as a result, the EGFR has been identified as ...

Environmental lessons from tsunami as world's coastal population doubles

...reduce the energy of tsunami waves in Sri Lanka by acting as natural barriers, the Stockholm Environment Institute discovered in a rapid assessment of the environmental impact of the tsunami. In the Caribbean, the Cayman Islands have adapted to major hurricanes. The government took positive action and educ...

NYU biologists map out early stages of embryo formation

...ovide new insights for cancer research since genes acting in early embryogenesis are often erroneously reactivated in cancer cells. The research is the latest in a series of studies conducted at NYU's Center for Comparative Functional Genomics in collaboration with researchers at Harvard and Yale Universit...

A 'dimmer switch' for genes

...ing. That isn't typical," Graves says. "Instead of acting like an on-off switch, it behaved the way a dimmer switch does to regulate lighting in a gradual manner." In studying how this fine-tuning worked, they also discovered that conventional wisdom failed to fully describe how proteins function. It was k...

An essential regulator of body weight revealed

...ns to be important regulators of feeding behavior, acting in opposition to POMC neurons to stimulate appetite. But genetic experiments designed to tease out exactly how NPY/AgRP neurons triggered feeding had failed to do show any direct relationship between eating behavior and the molecules scientists thoug...

Agricultural workers at increased risk for infection with animal flu viruses

...ian) viruses as well as human flu viruses--thereby acting as a virtual virus "mixing bowl," especially on farms where pigs, chickens and people coexist--is a potential public health concern, the study authors assert. The paper appears online this week in Clinical Infectious Diseases. "Pigs play a role in ...

Scientists characterize proteome of human cornea

...erms, dust, UV light, and other harmful matter and acting as the eye's outermost lens. Approximately 120 million people in the United States wear eyeglasses or contact lenses to correct nearsightedness, farsightedness, or astigmatism. These vision disorders are often the result of incorrect curvature or ir...

Biotech cotton 8: Bugs 0

...nnehy added, "These soft toxins plus the good bugs acting together have driven pesticide use to historic low levels ... this is a wonderful success of integrated pest management." Since widespread adoption of Bt cotton in 1997, insecticide use on Arizona's cotton crops is down 60 percent, said Tabashnik. T...

Researchers identify molecular anchor that allows bacterial invasion of central nervous system

...indness, deafness or seizures. Therefore, an early acting treatment would help reduce the high rates of disability and death. "Previous studies have found that Streptococcus bacteria from infants with serious disease have significantly higher levels of LTA than bacterial strains in infants without symptoms...

Gene therapy potential for treatment of pancreatic cancer

..., so that it would be able to penetrate the cells, acting as a vector. The test tube experiments showed that 72 hours after infection with the genetically modified virus, vasostatin was clearly active in the tissue. Tumour growth in the mice was also curbed, and when compared with mice which had not been i...

Jefferson researchers find nanoparticle shows promise in reducing radiation side effects

..., so that it would be able to penetrate the cells, acting as a vector. The test tube experiments showed that 72 hours after infection with the genetically modified virus, vasostatin was clearly active in the tissue. Tumour growth in the mice was also curbed, and when compared with mice which had not been i...

Key brain regulatory gene shows evolution in humans

...a pattern is a signature of evolutionary selection acting on the genetic sequence, said Wray. Still mysterious, he said, is how the prodynorphin gene changes affect human neural development. "All we can conclude now is that this gene is a very strong candidate for having a functional role in human evoluti...

Genetic analysis of Asian elephants in India reveals some surprises

...tic diversity possible." says Melnick. "We're just acting blind if we don't know where that diversity is. This study shows us where we need to focus our efforts." ...

Bacteria that cause tooth decay able to survive without important biochemical pathway

... other molecules, called YidC1 and YidC2, might be acting as alternate routes for protein delivery in the absence of the SRP pathway. They tested their hypothesis and found that S. mutans could continue to function in non-stress conditions without the SRP and YidC1 genes, but not without the YidC2 and SRP s...

1 2 3 4 5 6