A new study focuses on potential epigenetic causes of autism – i.e., not necessarily defects in the genes themselves, but possible problems with certain proteins that aid in the body’s internal communication system.
For a more detailed article from Autism Speaks, which co-funded the study, see:
For an abstract about the study, see:
http://archpsyc.ama-assn.org/cgi/content/short/archgenpsychiatry.2011.151