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Tag: "reason" at biology news

Triple threat polymer captures and releases

...m temperature but at elevated temperature for some reason everything is being expelled rapidly,," she said. "We don't know if there is some reorganization of the morphology of the material or whether the guests partition to different domains at different temperatures." Wooley says that the results of ...

Infected for life

...nia School of Medicine have discovered part of the reason why cold sores, caused by a herpes virus, come back again and again. The new study, published online last month in Nature, points to a small RNA molecule, called a microRNA (miRNA) as the culprit that keeps the latent virus-infected cell alive. These...

Compound in dairy products targets diabetes

...d other lifestyle issues," Vanden Heuvel says. The reason for the increase in diabetes may have to do with the ratio of so-called "good" and "bad" fats, with the average American diet containing too much of the "bad" fats. CLA, whose effect is very similar to fish oil, a source of "good" fat, could prove be...

Researcher gives hard thoughts on soft inheritance

... has been inherited. Mechanistically, there is no reason to discount epigenetic inheritance. The biochemical nuts and bolts are there to support it. The big questions to resolve are how many epigenetic changes are induced by the environment, what types of phenotypes result from these changes, and how man...

When it comes to gene transcription, random pauses aren’t quite so random, study finds

...long the DNA for a while, and then for no apparent reason it appears to stop. Some pauses we've already figured out. The really long ones, which happen every 1,000 bases or so and last up to 30 minutes, often occur when the enzyme makes a mistake. Then, it's got to back up and correct the mistake. But for e...

Beekeepers work hard for the honey, despite changing tupelo forest

...difficult to find places to put their hives. One reason is because the forest has taken a beating from more than 45 years of dredging of the Apalachicola for a river navigation project. The dumping of the dredged material has cut off many tupelo trees from their source of fresh water. Upstream water diver...

Defense peptide found in primates may block some human HIV transmissions

...be increased substantially over time. The exact reason why resistance does not develop quickly with retrocyclin is unclear, but it may be a result of retrocyclin interacting with more than one target on both the cell and virus. Viruses that have to defeat more than one antiviral mechanism often develop r...

UGA researchers find that hunting can increase the severity of wildlife disease epidemics

...ks have worsened in response to the hunting. One reason the policies failed, Choisy and Rohani said, is that they didn't take into account an ecological principle known as compensation. When a portion of the animal population is reduced, those that survive are left with more resources such as food and she...

Researchers discover which organs in Antarctic fish produce antifreeze

...source of secreted plasma protein, so there was no reason to think otherwise," said Chi-Hing "Christina" C. Cheng, a professor of animal biology. "It turns out that the liver has no role in the freezing avoidance in these fishes at all." Instead, antifreeze glycoproteins (AFGP) originate primarily from the...

New egg freezing technique offers hope to hundreds of women

... not influence fertilisation rates," she said. One reason for the high percentage of failure after fertilisation could be the damage done to the structure of the egg during freeze-thawing, in particular to a part called the meiotic spindle which is involved in cell division. The meiotic spindle is a bundle ...

Can biological traits predict diversification rates in birds?

...n much debate in the scientific community over the reason for such variation, but a recent study in The American Naturalist by Albert B. Phillimore (Imperial College London, Silwood Park Campus), Robert P. Freckleton (Oxford University), C. David L. Orme (Imperial College London, Silwood Park Campus), and I...

MIT sheds light on how tumor cells form

...ormal. What MIT researchers have discovered is a reason these checkpoint proteins may be unable to sense the defective cells, which tend to have very subtle errors in them. (These subtle errors are believed to be the cause of aneuploidy and the rapid growth of tumors.) Before cells divide, individual chr...

Pest control research leads to pain control discovery

...proteins that speed up chemical reactions.) "The reason this is so exciting is that this is a novel way to reduce inflammation, with a combination therapy," Schmelzer said. "We're going after a new enzyme target, not going after the Cox-2 inhibitors." Their research is reported in a paper entitled "Enha...

Purdue creates new low-cost system to detect bacteria

...y in real time. There is absolutely no fundamental reason why we wouldn't be able to do this, and we are pretty close to having an actual prototype of a product that could be commercialized." A provisional patent has been filed for the data-processing technique, and a full patent application has been file...

Chocolate, wine, spicy foods may be OK for heartburn, Stanford study finds

...uate to treat the symptoms of heartburn. "The main reason they probably have heartburn is that their sphincter muscle is relaxing too much and taking the medicine will decrease the amount of acid that's going into their esophagus," she said. "Since I don't have a lot of evidence that changing their diet dr...

Brittle prions are more infectious

... a high degree of activity," he said. "Part of the reason may be that they were trying to create forms that were very stable. But that might have been exactly the wrong thing to do, because prions that are too stable may be the ones that are not very infectious because the aggregates are hard to break up. ...

Major obesity gene is 'lost in the shuffle'

... lipid metabolism in humans, so there is certainly reason to presume that this deletion contributed to the gibbons' remarkably small body mass, enabling them to thrive in the jungle canopy." Ishida points out that future studies of gibbons and other primates will enable scientists to examine the physiologi...

First direct mechanical communication of mitochondria, cardiomyocyte nucleus shown

...nction, namely transcription? Indeed, he said one reason for presenting their findings at Experimental Biology is to find collaborators interested in studying the relevant transcriptional processes. ...

Researches discover gene critical for protection against septic-shock-induced death

...ulates that suboptimal function of Nrf2 may be one reason why some intensive-care patients progress into severe sepsis and die. "Nrf2 protects from septic shock by two mechanisms," explained lead author Rajesh Thimmulappa, PhD, a postdoctoral fellow at Environmental Health Sciences, Bloomberg School of Pu...

Record bonefish

...ects and is an exciting breakthrough. This is the reason why BTU invested in this kind of research to begin with," said Tom Davidson Sr., BTU chairman and founding member. "It's quite rewarding to uncover new information like this that bonefish may be crossing the Gulf Stream. It's what truly can lead to...

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