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Sunday, December 18, 2011

ScienceDaily: Top Health News

ScienceDaily: Top Health News


Young adults drop exercise with move to college or university

Posted: 15 Dec 2011 08:27 PM PST

Regular exercise tends to steeply decline among youth as they move to university or college, and does not appear to revert itself, but continues on a downward trajectory into adulthood.

Secrets of the 'sleep hormone': Discovery leads to novel melatonin drug with potential to treat insomnia

Posted: 13 Dec 2011 04:00 PM PST

Scientist have made a major breakthrough by unraveling the inner workings of melatonin, also known as the "sleep hormone." The research reveals the key role played by the melatonin receptor in the brain that promotes deep, restorative sleep. This discovery led the researchers to develop a novel drug called UCM765, which selectively activates this receptor. The results may pave the way for the development of new and promising treatments for insomnia.

Dodging the cognitive hit of early-life seizures

Posted: 13 Dec 2011 03:56 PM PST

About half of newborns who have seizures go on to have long-term intellectual and memory deficits and cognitive disorders such as autism, but why this occurs has been unknown.Researchers now detail how early-life seizures disrupt normal brain development, and show in a rat model that it might be possible to reverse this pathology by giving certain drugs soon after the seizure.

Molecular markers can predict spread of cancer, guide treatment

Posted: 13 Dec 2011 03:56 PM PST

Molecular markers found in cancer cells that have spread from a primary tumor to a limited number of distant sites can help physicians predict which patients with metastatic cancer will benefit from targeted radiation therapy. If cells from metastatic tumors have high levels of one type of microRNA then aggressive local treatment will not help. But if the cells have lower levels of that marker, then focused treatment could be effective, even curative.

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