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05 July 2011

Environment key to autism

Environmental factors may play a bigger role than shared genes in the development of autism, a new study suggests. A second study also finds that antidepressants in pregnancy could play a role too.

Contrary to current thinking, environmental factors may play a larger role than shared genes in the development of autism, a new study in twins suggests.

The study included 54 pairs of identical twins (meaning they share all of the same genes) and 138 pairs of fraternal twins (who share half of their genes).

 
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