Progress in Identifying the Genetic Roots of Autism

Melinda Beck:

One of the most agonizing questions that parents of children with autism ask is--why?

Now, a growing number of genetic tests are providing some answers.

Scientists say that roughly 20% of autism cases can be linked to known genetic abnormalities, and many more may be discovered.

Pinpointing a genetic explanation can help predict whether siblings are likely to have the disorder--and even point to new, targeted treatments. Last week, for example, researchers reported that an experimental drug, arbaclofen, reduced social withdrawal and challenging behaviors in children and adults with Fragile X syndrome, the single most common genetic cause of autism.

Posted by Jim Zellmer at September 26, 2012 1:34 AM
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