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Tag: "supports" at biology news

Scientists directly view immune cells interacting to avert autoimmunity

...nse research over the last 15 years. The new study supports one contending hypothesis: It is not the interaction between the two types of T cells, but rather the interaction of each with the dendritic cells that leads to protection from autoimmune assaults. Analyzing these physical interactions experimentall...

Stress substantially slows human body's ability to heal

...a really sensitive process." Glaser added, "This supports our long-held contention that even small changes in cytokine levels will have a marked effect on health." William Malarkey, professor of internal medicine; Stanley Lemeshow, dean of the School of Public Health and director of the Center for Biostat...

'Perception' gene tracked humanity's evolution, scientists say

... in expression levels within humans. This report supports a growing consensus among evolutionary anthropologists that hominid divergence from the other great apes was fueled not by the origin of new genes, but by the quickening (or slowing) of the expression of existing genes. Hahn and his colleagues at D...

Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace

...mboldt University in Berlin, Germany. The report supports Hebb's theory of learning, a 55-year-old proposition that "neurons that fire together wire together," thereby strengthening their connections. According to the theory, a stimulus activates some neurons while inhibiting others. Once this stimulus is r...

Viagra's hidden help for wildlife

...lished in Environmental Conservation. The finding supports a prediction made by Australian and Alaskan researchers at the advent of Viagra's commercial release in 1998 that the new impotence drug might reduce demand for several animal species that are over-harvested to treat impotence with TCMs. Animals suc...

Did feathered dinosaurs exist?

...rom an earlier shared ancestor. The current theory supports direct derivation, but recent fossil discoveries i...searchers found that the vast majority of evidence supports a 2-3-4 digit identity for bird wings. The bird hand "appears different from that in theropod dinosa...

Sperm trading can resolve hermaphrodite mating conflicts

... significantly sooner than did control pairs. This supports the concept of sperm trading, where mates negotiate mating roles in order to balance sexual interactions. ...

Max Planck researchers make a breakthrough in plant stem cell research

...n signal chain. Jan Lohmann explains that "WUSCHEL supports the cytokinin effect by stopping its negative feedback." That is also the reason for earlier observations, that Arabidopsis samples with defective WUSCHEL genes only develop very small meristems, and have trouble growing. The researchers in Tübingen...

Researchers develop new method for studying 'mental time travel'

...te from when they first studied the pictures. This supports the theory that memory retrieval is a form of mental time travel. In addition, by measuring second-by-second changes in how well participants were recapturing their previous brain state, the researchers were able to predict what kind of item the sub...

Fish evolve a longer lifespan by evolving a longer reproductive period, researchers find

...the Public Library of Science ?Biology. The study supports the controversial hypothesis that natural selection ?the process in nature by which only organisms best adapted to their environment tend to survive and pass on their genetic characters in increasing numbers to succeeding generations ?introduces chan...

Wolves' top-down effect

...deaths in the high-wolf area to wolves, which also supports the major role wolves have in this trophic cascade. "Our study findings strongly bolster the use of conservation and restoration strategies which are based on the key role of large predators," says Hebblewhite. "Human Activity mediates a Trophic Ca...

New study to explore cellular circuitry

...egrative Biological Research (FIBR) Program at NSF supports research into central questions in biology by integrating disciplines. Over the next five years, Keck Graduate Institute of Applied Life Sciences, the principal grant recipient, will lead a team of biochemists and computer scientists in an attempt to...

Prenatal exposure to famine increases risk of schizophrenia

...igher for those born in 1961. "Our study strongly supports the view that prenatal exposure to famine increases the risk of schizophrenia in later life. Using a much larger sample size with clear evidence of exposure, our findings are internally consistent and almost exactly replicate the Dutch findings. Sinc...

Bacteria in Household Dust May Trigger Asthma Symptoms

... a component of the National Institutes of Health, supports research to understand the effects of the environment on human health. For more information about asthma please visit our website at http://www.niehs.nih.gov/airborne/. For more information on other environmental health topics, please visit our websi...

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

...healthy but had new characteristics. This survival supports the theory that prions have endured through evolution because shape-shifting is advantageous, allowing cells to avoid stress by rapidly adjusting to a new environment. "Our studies provide some insight into how the appearance of a misfolded protein ...

Number Of Babies Born Prematurely Nears Historic Half Million Mark In U.S.

... on the signs and symptoms of premature birth, and supports more research into the causes of premature labor. One of the goals of the campaign is to help the nation reach the goal set by the U.S. Public Health Service of reducing the rate of premature birth to 7.6 percent by 2010. The NCHS report, entitled "...

Key To Stem Cell Transplant Success Is Tricking Immune System

...racellular matrix, a meshwork of protein and fiber supports outside of cells that can influence their behavior. "Fat cells require contact in order to stretch and change shape--becoming round cells able to accumulate lots of lipids," said Saltiel. "Many things happen in the generation of fat cells, the trans...

Short-term Bio Sensors Monitor From Afar

...racellular matrix, a meshwork of protein and fiber supports outside of cells that can influence their behavior. "Fat cells require contact in order to stretch and change shape--becoming round cells able to accumulate lots of lipids," said Saltiel. "Many things happen in the generation of fat cells, the trans...

System Drastically Cuts Down Botulism Detection Time

...racellular matrix, a meshwork of protein and fiber supports outside of cells that can influence their behavior. "Fat cells require contact in order to stretch and change shape--becoming round cells able to accumulate lots of lipids," said Saltiel. "Many things happen in the generation of fat cells, the trans...

The making of a fat cell

...racellular matrix, a meshwork of protein and fiber supports outside of cells that can influence their behavior. "Fat cells require contact in order to stretch and change shape--becoming round cells able to accumulate lots of lipids," said Saltiel. "Many things happen in the generation of fat cells, the trans...

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