Genes ‘have key role in autism’

Autism is more often diagnosed in boysThey highlighted tiny genetic changes that appear to have a strong impact on the likelihood of developing autism and related conditions.

The changes influence genes which help form and maintain connections between brain cells.

The Nature study highlighted one common genetic variant which, if corrected would cut cases of autism by 15%.

Previously, other genetic variants have been linked to autism, but they are all relatively rare.

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