Researchers at the University of California in Los Angeles have found that a variation in a gene called CACNA1G may increase children's risk of developing autism. The researchers studied 1,046 members of families with at least two sons affected by autism (which is four times more common in boys). The variation in the CACNA1G gene was consistently correlated with an increased risk of autism. However, 40% of the population share this variation so it may only be one of many genes behind the condition.
You can find out more about this research at
http://www.sciencedaily.com/releases/2009/05/090519172155.htm
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