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Friday, July 13, 2012

Why Are Boys More Prone To Autism? It's In The Genes

Autism is much more prevalent in boys than in girls, and researchers now think they know why, according to a new study, published in the journal Human Molecular Genetics. Five rare gene mutations appear to increase the chances that a boy will develop autism, researchers said. Researchers found that mutations on the AFF2 gene, which resides on the X chromosome, increase the risk for autism. While both boys and girls have an X chromosome, girls have a second copy which can compensate for a faulty gene, while men only have one.

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