ScienceDaily Health Headlines
for Sunday, July 18, 2010
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Redundant genetic instructions in 'junk DNA' support healthy development (July 17, 2010) -- Seemingly redundant portions of the fruit fly genome may not be so redundant after all. Repeated instructional regions in the flies' DNA may contribute to normal development under less-than-ideal growth conditions by making sure that genes are turned on and off at the appropriate times, according to new research. If similar regions are found in humans, they may hold important clues to understanding developmental disorders. ... > full story
Model predicts individual's vitamin D needs (July 17, 2010) -- Your skin tone and the amount of sunshine you receive -- in addition to what foods you eat -- all can influence the amount of vitamin D that your body has on hand for optimum health. Scientists have now developed a preliminary model that predicts an individual's vitamin D requirements. ... > full story
The image in the mirror and the number on the scale both count (July 17, 2010) -- Adolescent girls who think they are overweight, but are not, are at more risk for depression than girls who are overweight and know it, according to sociologists. ... > full story
New toxin may be key to MRSA severity (July 17, 2010) -- A research project to identify all the surface proteins of USA300 -- the most common community-associated strain of the methicillin-resistant form of the bacterium Staphylococcus aureus -- has resulted in the identification and isolation of a plentiful new toxin that laboratory studies indicate is a potent killer of human immune cells. Scientists say the toxin could be a key factor in the severity of MRSA infections in otherwise healthy people. ... > full story
Investigators perfect new version of blood-regulator thrombin (July 17, 2010) -- Molecular biologists have discovered a way to harness the enzyme thrombin's anti-blood clotting properties. ... > full story
Abnormal brain activity in migraineurs is not restricted to attacks (July 17, 2010) -- Typically, migraine is considered to be an episodic disorder with discrete attacks of headache. But new research has found increased network activity -- stronger functional connectivity -- bilaterally in the visual, auditory and sensorimotor network in migraineurs. ... > full story
Improving clinical use of stem cells to repair heart damage (July 16, 2010) -- Researchers have presented a new approach to treating heart attack and cardiomyopathy using stem cells. The team has discovered a way to identify heart stem cells so as to purify them for transplant. ... > full story
New method of tissue banking makes gene analysis more practical for lung cancer (July 16, 2010) -- Analyzing the genes expressed by cancer cells allows for a better understanding of that patient's specific disease and in turn, a more personalized approach to treatment. But obtaining the RNA from a tumor in the lungs in order to conduct the genetic analysis is a challenging prospect. Currently, lung cancer researchers are limited to using RNA extracted from early-stage tumors removed during surgery. ... > full story
Studies explore effects of war on former child soldiers (July 16, 2010) -- Two studies found that how child soldiers adapt upon returning home depends on the communities they return to. The first study, of 150 former child soldiers in Sierra Leone, found that children who lived in communities where they felt accepted were less depressed and more confident. The second study, of 330 former Ugandan child soldiers, found that the most resilient children were those who returned to less violent communities and better family socioeconomic situations. ... > full story
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