Sabtu, 30 Juli 2011

ScienceDaily Health Headlines -- for Saturday, July 30, 2011

ScienceDaily Health Headlines

for Saturday, July 30, 2011

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Oral interferon may prevent and control avian influenza virus infection (July 29, 2011) -- Avian influenza virus is a threat to the commercial chicken industry and, with its recent rapid spread across China, has also shown the ability for transmission from chickens to humans and other mammals. ... > full story

Cellular power plant genome mutates when reprogrammed: Genetic changes in mitochondrial genome of human induced pluripotent stem cells (July 29, 2011) -- Induced pluripotent stem cells (iPS cells) are truly talented multi-taskers. They can reproduce almost all cell types and thus offer great hope in the fight against diseases like Alzheimer's and Parkinson's. However, it would appear that their use is not entirely without risk: during the reprogramming of body cells into iPS cells, disease-causing mutations can creep into the genetic material. The genome of the mitochondria -- the cell's protein factories -- is particularly vulnerable to such changes, according to new research. Scientists encountered mutations in the mitochondrial genome of iPS cells. Because such genetic mutations can cause diseases, the cells should be tested for such mutations before being used for clinical applications. ... > full story

Packing on pounds riskier for South Asians, say researchers (July 29, 2011) -- A new study has found that some ethnic groups are more likely to be adding dangerous fat onto their internal organs like their liver when they gain weight, while others just add it to their waistline. ... > full story

Fair play -- a question of self-image? Researchers explain conditions under which people are prepared to behave fairly (July 29, 2011) -- Why do people behave selfishly and accept that their behavior may have negative consequences for others? Researchers in Germany investigated this question in a laboratory experiment. They found that such behavior often depends on whether information about the consequences for others can be ignored. Based on their findings, the researchers believe that conclusions can be drawn on, for instance, how the marketing of fair trade products could be improved. ... > full story

'Brain cap' technology turns thought into motion; Mind-machine interface could lead to new life-changing technologies for millions of people (July 29, 2011) -- "Brain cap" technology now being developed allows users to turn their thoughts into motion. Researchers have created a noninvasive, sensor-lined cap with neural interface software that soon could be used to control computers, robotic prosthetic limbs, motorized wheelchairs and even digital avatars. ... > full story

Traumatic brain injury linked with tenfold increase in stroke risk (July 29, 2011) -- Suffering a trauma to the brain may increase the risk of stroke tenfold within three months, according to new research. This is the first study to show a direct correlation between traumatic brain injury and stroke. Researchers suggest neuroimaging, intensive monitoring and stroke education for anyone incurring a traumatic brain injury. ... > full story

Out-of-the-blue panic attacks aren't without warning: Body sends signals for hour before (July 29, 2011) -- Panic attacks that seem to strike out-of-the-blue are not without warning after all, says psychologists. A new study found significant physiological instability one hour before patients reported feeling a panic attack. The patients wore portable recorders around-the-clock that monitored bodily functions like respiration and heart rate. The findings suggest potentially new treatments for panic, and re-examination of other "unexpected" medical problems, including seizures, strokes and manic episodes. ... > full story

Gene discovery in truffle dogs sheds new light on mechanisms of childhood epilepsy (July 29, 2011) -- A new epilepsy gene, LGI2, has been found in the Lagotto Romagnolo dogs, known from their gift for truffle hunting. ... > full story

Scary driving? Put the brakes on using your brain power (July 29, 2011) -- Researchers have used drivers' brain signals, for the first time, to assist in braking, providing much quicker reaction times and a potential solution to the thousands of car accidents that are caused by human error. ... > full story

Next generation gene therapy (July 29, 2011) -- Inspired by earlier successes using gene therapy to correct an inherited type of blindness, investigators are poised to extend their approach to other types of blinding disorders. In a new study, researchers compared the safety and efficiency of delivery in an animal model of two different types of vectors. This preclinical work will guide dose-level formulation and type of vector to deliver genes to treat blindness caused by the loss of photoreceptors. ... > full story

Salt appetite is linked to drug addiction, research finds (July 29, 2011) -- A team of U.S. and Australian scientists has found that addictive drugs may have hijacked the same nerve cells and connections in the brain that serve a powerful, ancient instinct: the appetite for salt. ... > full story

Rate of stroke increasing among women during, soon after pregnancy (July 29, 2011) -- Researchers report a large increase in the number of women having strokes while pregnant and in the three months after childbirth. The overall rate of pregnancy-related stroke went up 54 percent between 1994-95 and 2006-07. The increase is due to women having more risk factors, including high blood pressure and obesity. ... > full story


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