A study co-authored by Ning Lei from Princeton University has shed a little more light on the genetics of autism. The study compared 943 families who had children diagnosed with autism with 6,317 unaffected people and looked at the prevalence of 25 gene mutations. It identified two additional genes that could be linked to autism, one of which, NCAM2, affects the hippocampus, a brain region previously associated with the condition. A lot of the genes implicated in autism are known to affect the synapse - the link between brain cells.
You can find out more about this research at
http://psychcentral.com/news/2010/05/03/new-evidence-on-autism/13423.html
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