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Science News for May 5, 2007


Anthrax paralyzes immune cells with lethal toxin, UF research shows

Researchers at UF discovered that anthrax's lethal toxin immobilizes neutrophils by preventing actin assembly, leaving them unable to protect against infection. This finding may lead to a diagnostic blood test within hours of detection, allowing for quicker treatment and potentially saving lives.

SourceUniversity of Florida·JournalThe EMBO Journal·DateMay 5, 2007

A frown or a smile? Children with autism can't discern

A study by UCLA researchers found that children with autism exhibit reduced activity in the ventrolateral prefrontal cortex, a region responsible for evaluating emotions and context. This impairment affects their ability to process visual cues like eye gaze and facial expressions.

SourceUniversity of California - Los Angeles·DateMay 5, 2007
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Some hypertension drugs may help reduce dementia risk

Researchers found a link between taking centrally active ACE inhibitors and lower rates of mental decline, with a 50% lower decline in test results compared to other high blood pressure pills. The study suggests that these drugs may slow cognitive decline by reducing inflammation in the brain.

SourceAtrium Health Wake Forest Baptist·DateMay 5, 2007