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Tag: "reason" at biology news

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

...f underground water and overground water. For this reason food safety agencies have established control measures to prevent these pesticides entering the food chain. Similarly, antibiotics used to treat bacterial infections in domestic animals, such as the case of sulphanilamides in cattle, and even those u...

Switching genes to overdrive improves muscular dystrophy symptoms in mice

...ach and signal the fibers to contract. Part of the reason that exercise builds stronger muscles is that it increases PGC-1alpha activity. Conversely, disease or lack of exercise reduces PGC-1alpha activity, causing a loss of NMJ function and weakening, or atrophying, of muscles. Spiegelman’s team had pre...

Get a whiff of this: Smell test could sniff out serious health problems

... to processing the sense of smell. “So, that’s the reason it might be acting a little bit like the canary in the mineshaft. Because it’s more fragile, when you have insult to the brain, it may be sensitive to loss earlier in the disease process.? Frank adds that because smells don’t have to be identified ...

Stanford-led study closes in on genes that may predispose some people to severe depression

...likely to develop depression as men, although the reason is not yet known. "We don't think depression is entirely genetic, by any means, but there are important genetic factors," said Levinson. "If we can succeed in finding one or more genes in which there are specific DNA sequence variations that a...

Transfusion expert urges wider use of filtered blood

...d by the Food and Drug Administration. Part of the reason is fear of increased cost. However, Neil Blumberg, M.D., lead author of the study and a proponent of leukoreduction, argues that several cost-benefit analyses show that an upfront increase of $25 to $35 for each unit of filtered blood is offset by...

Arsenic in chicken feed may pose health risks to humans, C&EN reports

...nts the U.S. chicken industry, claims there is “no reason to believe there are any human health hazards?associated with the use of roxarsone. ...

Tropical forests -- Earth's air conditioner

...it could help to combat global warming. "A primary reason we are trying to slow global warming is to protect nature," he explains. "It just makes no sense to destroy natural ecosystems in the name of saving natural ecosystems."...

Imaging pinpoints brain regions that 'see the future'

...y," McDermott concludes. "It may just be that the reason we can recollect our past in vivid detail is that this set of processes is important for being able to envision ourselves in future scenarios. This ability to envision the future has clear and compelling adaptive significance." ...

Tracking sperm whales and jumbo squid

...surface to deeper waters preferred by whales. "One reason squid may be going down there at night is because water near the surface is really warm—up to 82 F—and they may be getting stressed," Gilly explained. "The squid is using energy all of the time, because it has to swim to breathe. So when it gets into...

'Marathon mice' elucidate little-known muscle type

...s, which are normally much less prevalent. "One reason why less is known about IIX fibers is that no one muscle group is packed with them," Spiegelman said. "For the first time, we have a mouse model very enriched in IIX fibers. These mice show a greatly increased capacity to sustain physical activity." ...

Fighting influenza & co. with 40,000 blood samples

... this risk group as it is with younger people. The reason for this is that with age the fire power of the im...the success rate is as high as 90 per cent. The reason for this is that the effectiveness of the immune system decreases with age. An international researc...

Hotspots of mercury contamination identified in eastern North America

...to people and wildlife that consume fish. There is reason to believe, however, that lowering emissions can reduce risk: an analysis of levels of mercury contamination over time in the Merrimack River watershed suggests that lowered emissions reduced mercury levels in biota within a few years. The 10-membe...

Genetic pathways to curable and incurable forms of pancreatic cancer identified

...n Cancer Research Center have unlocked the genetic reason why. Using unique mouse models to mimic the progression of both forms of human pancreatic cancer, researchers have discovered that a specific sequence of otherwise common genetic mutations is responsible for sending cells down the less-traveled path...

Researcher to study astronaut bone loss for space biology agency

...bilized patients experience bone loss for the same reason astronauts do: their skeletons have not borne any weight. "This makes their rehabilitation risky, because, like astronauts who have returned to earth, they are predisposed to fractures." Long's research project will focus on the relationship betwe...

New cell type identified in cancer development

...reatment, and some scientists believe they are the reason cancer recurs. Until now, no one has known how they arise. But a team of scientists, led by Dr. Jian-Xin Gao, a researcher in the department of pathology at Ohio State University Medical Center, has identified a new set of cells he calls precance...

Scientists find potential 'off-switch' for HIV virus

...st that target other cellular enzymes, so there is reason to hope the approach will work. "There is precedent for this type of treatment," he said. Though more research will be needed to develop drugs based on the Princeton scientists' "resistor" model, Weinberger said he hopes the discovery stimula...

New biofuels process promises to meet all US transportation needs

... the foreseeable future," Agrawal said. A major reason less land would be needed is because of the overall higher efficiency of generating hydrogen by splitting water molecules using solar energy to drive the electrolysis. Usually, the hydrogen in liquid fuels made from biomass comes from the plant matte...

White blood cells in lung produce histamine seen in allergies

...istamine levels rose up to 50 times normal." The reason was straightforward, Caughey says. Neutrophil numbers increased in response to infection, and neutrophils in turn produced histamine. "It's a direct effect of the mycoplasma bacteria on neutrophils. They induce neutrophils to produce the enzyme that ...

Researchers find hepatitis A and hepatitis C attack same protein to block immune defenses

...e degradation of this cell protein is not the main reason that hepatitis C becomes persistent. These results thus provide a new perspective on the chronicity of hepatitis C, which is a highly relevant virus clinically." Hepatitis C has received far more research attention than hepatitis A in recent years...

Procedure predicts embryos most likely to result in pregnancy

... Reproductive Sciences led the study. "The main reason for multiple gestations following in-vitro fertilization is the inability to precisely estimate the reproductive potential of individual embryos," Seli said. "The successes of in-vitro fertilization often result from simultaneous transfer of multiple...

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