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Tag: "increase" at biology news

Human genetic 'deserts' are teeming with significant life

...ions for medicine, says Professor Reymond. “They increase the size of the genomic regions that might harbour disease-causing mutations, and they could impair cloning strategies that try to find genes implicated in these pathologies.” They also suggest that extra caution should be used when associating a ...

Prey not hard-wired to fear predators

...ece of knowledge as biologists and public agencies increase efforts to re-introduce large carnivores to places where they have been exterminated. Berger’s study is published in the latest issue of the journal Conservation Biology. The goal of re-introduction isn’t simply to save a species; it is to restor...

Smoking rate has plummeted in New York City

... has declined by more than 60 cents since the last increase of the tobacco tax in New York in 2002; the time is right for another increase in the cigarette tax.”...

Definitive evidence found of a swimming dinosaur

...h," said Costeur. "New biomechanical modeling will increase our understanding of dinosaur physiology and physical capabilities, as well as our view of the ecological niches in which they lived." ...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

...he current study, researchers used gene therapy to increase by about one thousand times the number of opioid receptors expressed on the surfaces of nerve cells that carry pain messages back and forth between an osteoarthritic jaw joint and the spinal cord. Thus, nerve cells involved in pain transmission, with...

'Smart' mice teach scientists about learning process, brain disorders

...g is more meaningful to these mice," he said. "The increase in sensitivity to their surroundings seems to have made them smarter." The engineered mice were more adept at learning to navigate a water maze and remembering that being in a certain box involves a mild shock. Equally important, Dr. Bibb said, wh...

Ants show us how to make super-highways

...the overall speed of the traffic and results in an increase in the amount of prey delivered to the nest each d... Franks. Overall, this behaviour results in an increase in the average speed of prey-laden traffic. Moreover, calculations suggest that under a range of rea...

First confirmed common genetic risk factors for breast cancer

... – has uncovered five common genetic variants that increase an individual’s risk for breast cancer. In a paper published online today in the journal Nature, the international team of scientists who conducted the genome-wide association study report that these five genes code for proteins crucial to biologica...

Moths mimic sounds to survive

...ht sky filled with hungry bats, good-tasting moths increase their chances of survival by mimicking the sounds of their bad-tasting cousins, according to a new Wake Forest University study. Published in the May 29 issue of the Proceedings of the National Academy of Sciences, the study is the first to definiti...

Human stem cell treatment restores motor function in paralyzed rats

...imals showed a robust maturation of neurons and an increase in the expression of inhibitory neurotransmitters in the spinal cords of rats that received transplanted neuronal cells. Current treatment for debilitating muscle spasticity is continuous systemic or spinal drug treatments using implanted pumps. ...

Arctic ice retreating more quickly than computer models project

...en water, which are expanding, absorb sunlight and increase temperatures. This feedback loop has played a role in the increasingly rapid loss of ice in recent years, which accelerated to 9.1 percent per decade from 1979 to 2006 according to satellite observations. ...

Statin treatment improves spatial memory in mouse models of Alzheimer's

... blood vessels in the brain, which eventually will increase blood flow and improve circulation to the memory region of the brain. These findings suggest that increases in brain nNos levels may play an important role in statin-induced improvement of spatial reference memory. The transgenic mice used in the ...

Madagascan tropical forests return thanks to better management and well-defined ownership

...substantial in the study area, with an overall net increase of 4 % during the period 1993-2000. These dry forests have the highest level of plant endemism (species found only in a particular region) in all of Madagascar and are listed as one of the 200 most important "ecoregions" of the world. The study also ...

How the brain's backup system compensates for stroke

.... However, they did not know whether this activity increase represented specific "rescue" of PMd function in t...lved in premotor function underwent a compensatory increase in activity. The researchers' experiments also established that this activity increase was functiona...

Amphibians in losing race with environmental change

...sunlight to provide a more oxygenated environment, increase growth rate of larvae and reduce predation. But the increased levels of UV-B radiation in today's sunlight, due to erosion of the Earth's ozone layer, is causing mutations, impaired immune systems and slower growth rates. Through evolution, amphibian...

Global survey of lizards reveals greater abundance of animals on islands than on mainland ecosystems

...sistant to biological invasions, which will likely increase dramatically with changing climate,?says Walter Jetz, an assistant professor of biological sciences at UCSD and a co-author of the study. “Climate change will drive animals to move to new places,?says Lauren Buckley, a postdoctoral fellow at the S...

US control strategies may make flu epidemics worse, UCLA study shows

...s for entire families, for example, could actually increase the frequency of severe epidemics. This is because when the head of the household makes a choice ?flu shots or no flu shots ?on behalf of all the other household members, there is no individual decision-making, and adaptability is decreased. Whil...

Maggots rid patients of MRSA

... was a reduction in sloughy necrotic tissue and an increase in healthy, growing tissue on removal of the last larval application. In their second study, he and his team will compare larval treatment with antibacterial silver dressings and the biogun treatment, which uses ionized air to create superoxide ra...

Molecule that destroys bone also protects it, new research shows

...cally, so it may not be a therapeutic candidate to increase immunity. But inhibitors of IL-17 are considered important targets for drugs to treat autoimmune diseases such as RA and psoriasis. On the down side, however, this new finding indicates that inhibiting IL-17 too much could put people taking such ...

World's leading scientists announce creation of 'Encyclopedia of Life'

...pedia of Life. "Through collaboration, we all can increase our appreciation of the immense variety of life, the challenges to it, and ways to conserve biodiversity. The Encyclopedia of Life will ultimately make high-quality, well-organized information available on an unprecedented level. Even five years ago...

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