San Francisco scientists find autism linked to dozens of genetic mutations - San Jose Mercury News: "Not all cases of autism have a gene-based beginning. Growing brains can also be influenced by environmental events.
In many cases, a combination of factors may be involved, he said.
While a rare few of the newly detected mutations are inherited from the parents' genomes, most families do not have a family history of the disorder.
Rather, these mutations arose during the creation of a father's sperm cell or mother's egg cell, they found.
The scientists tied mutations in more than 100 genes to autism. Sixty of these genes met a "high-confidence" threshold, indicating that there is a greater than 90 percent chance that mutations in those genes contribute to autism risk."
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Friday, October 31, 2014
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