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What role does inheritance play in autism?

The inheritance of autism is highly complex. Genetics appears to play a large role in the development of autism spectrum disorder. Studies involving twins determined that up to 90% of the differences between autistic and non-autistic people are due to genetic effects. It is still unclear whether interactions of multiple genes are involved or rare changes to single genes have major effects. A recent study in 2008 did identify a change in a specific protein that increased the risk of developing autism. Further studies are needed to determine the causes in more detail.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.