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Tag: "biology" at biology news

Scientists identify molecular cause for one form of deafness

...western University professor of cell and molecular biology James R. Bartles ?report their findings in a paper accepted for publication in the journal Physical Review Letters, and posted on its Web site. High-resolution X-ray diffraction experiments, performed by Purdy at the Advanced Photon Source and at t...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...postdoctoral fellow in organismic and evolutionary biology supported by the National Institutes of Health. "T... Edwards, professor of organismic and evolutionary biology in Harvard's Faculty of Arts and Sciences and Alexander Agassiz Professor of Zoology and curator of ...

Researchers learn what sparks plant growth

...is has become a critically important area of plant biology research with significant implications for commercial agriculture. "It’s been a matter of some debate for a very long time if one of these tissue layers controls plant growth or if all three layers have to work together," Chory said. "Our paper sh...

Need oxygen? Cells know how to spend and save

...ofessor of pediatrics and director of the vascular biology program in the Institute for Cell Engineering at Hopkins. "This is one way that cells maintain energy production under less than ideal conditions." A report on the work is in the April 6 issue of Cell. "Cells require a constant supply of oxygen,...

Tracking sperm whales and jumbo squid

...and lead author Randall Davis, professor of marine biology at Texas A&M University-Galveston. Their results, published in the March 12 edition of the journal Marine Ecology Progress Series (MEPS), raise new questions about the diving behavior of both species. "Sperm whales (Physeter macrocephalus) and...

Stress may help cancer cells resist treatment, research shows

...k, D.V.M., Ph.D., an assistant professor of cancer biology and senior researcher on the project. The study results are reported on-line in the Journal of Biological Chemistry and will appear in a future print issue. Levels of epinephrine, which is produced by the adrenal glands, are sharply increased ...

Female Antarctic seals give cold shoulder to local males

...ve this ecosystem need to know as much about their biology as possible. The behaviours that we observe will impact upon the genetic diversity of fur seal populations and may have helped them recover so successfully from near extinction only 100 years ago. This could in turn affect how well they respond to fu...

When your brain talks, your muscles don't always listen

... At the University of Connecticut, a class on the biology of the brain introduced him to the nervous system and movement, and he was hooked. His interests were further piqued during a summer research experience, where he had the opportunity to work with wheelchair athletes. "People with severe spinal cor...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

...on March 11, 2007. To determine whether stem cell biology might play a role in benefiting degenerative disea...ribute fundamental basic knowledge about stem cell biology that will help inform medical scientists in their quest for understanding diseases such as Parkinson...

Synthetic peptide targets latent papilloma virus infections

...d Michael Botchan, professor of molecular and cell biology and a faculty affiliate of the UC Berkeley branch of the California Institute for Quantitative Biology (QB3). "The hope is to have one drug that works for all different human virus types." "The second most preventable cancer in the world, after lun...

How fish species suffer as a result of warmer waters

...standing of the effect of water temperature on the biology of organisms under question. A new investigation, just published in the scientific journal Science, reveals that a warming induced deficiency in oxygen uptake and supply to tissues is the key factor limiting the stock size of a fish species under hea...

Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps

...owerful tool to advance our understanding of human biology in health and disease," said NHGRI Director Francis S. Collins, M.D., Ph.D. "As we build upon the foundation laid by the Human Genome Project, it has become clear that comparing our genome with the genomes of other organisms is crucial to identifying...

Link found between immune system and high plasma lipid levels

...professor of pathology, biochemistry and molecular biology at the University of Chicago. "This study may explain why. The next step would be to determine whether we can use this technique to manipulate the immune response and have a favorable impact on lipid metabolism." Using an assortment of engineered ...

New mechanism for nutrient uptake discovered

... transporters, Professor Dale Sanders, head of the biology department at the University of York in the U.K. commenting on the work said: "Loqué, Frommer and co-workers have demonstrated very beautifully how plant ammonium transporters are controlled. A switch domain in the protein facilitates rapid and sens...

Shedding new light on proteorhodopsin

...or. There was a great deal of excitement in the biology community in 2000 when proteorhodopsin was first discovered encoded within the genomes of uncultivated marine bacteria. The discovery implied that such bacteria possessed phototrophic as well as respiratory capabilities. This would be a critical ada...

Fighting to keep Darwin in the classroom

...t: "Evolution remains the central unifying idea in biology and yet is still a source of contention and confusion in the classroom. In Outreach and Education in Evolution, we'll cover the gamut, from molecules to ecosystems and from 'intelligent design' to natural selection. We aim to make a big difference ...

Yale biologists 'trick' viruses into extinction

..., associate professor of ecology and evolutionary biology at Yale, tested the practicality of luring a virus population into the wrong cells within the human body, thus preventing virus reproduction and alleviating disease. "Ecological traps for viruses might arise naturally, or could be engineered by a...

Keeping the body in sync -- The stability of cellular clocks

...escence recordings,?explains Felix Naef, a systems biology professor at EPFL and the Swiss Institute for Experimental Cancer Research. “We found that the phosphorylation and transcription rates of a specific gene are key determinants of the stability of our internal body clocks.? This result is consistent...

Putting an old drug to a new use

...d disorders." Combining electrophysiology, cell biology and molecular investigations, Weiss and his collab...ty of Heidelberg University we integrate molecular biology and clinical medicine to gain an understanding of the basis of human diseases. It is very gratifying...

Darwin's famous finches and Venter's marine microbes

...mes, which control every aspect of eukaryotic cell biology and are important cancer drug targets. They control the activity of proteins and small molecules by attaching tiny phosphate groups to them. By contrast, much less has been known about their bacterial counterparts. Again and again, the researchers...

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