Mechanism of autism

Biological processes that may contribute to autism

The mechanisms of autism are the molecular and cellular processes believed to cause or contribute to the symptoms of autism. Multiple processes are hypothesized to explain different autism spectrum features. These hypotheses include defects in synapse structure and function, reduced synaptic plasticity, disrupted neural circuit function, gut–brain axis dyshomeostasis, neuroinflammation, and altered brain structure or connectivity.

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