4/5/2012

Researchers sequenced the genes of children with sporadic autism and found hundreds of "de novo" or spontaneous mutations in gene sequences that could affect the function of genes in the patients. The studies indicate that it's the location, not the size, of the genetic anomaly that may be problematic. One research team estimated that the mutations could increase the risk of autism five to 20 times. The three studies appear in the journal Nature.

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