Apr 13, 2012 -- 9:38 amA study released Thursday shed light on why autism spectrum disorder affects four times more boys than girls - and offers clues for preventing the disorder.
The study, published in the American Journal of Human Genetics, was done by a team of researchers from several countries led by The Hospital for Sick Children in Toronto and McMaster University in Hamilton, Ont.
Researchers analyzed the genes of more than 1,600 people with autism, leading them to uncover a key genetic clue that possibly explains the gender bias: an alteration in the SHANK1 gene.
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