Scientists discover a brain signal that may trigger autism's domino effect

Researchers have identified a molecular chain reaction in the brain involving nitric oxide that may contribute to certain forms of autism. When nitric oxide activity increases, it alters the TSC2 protein, weakening a crucial cellular brake and allowing the mTOR pathway—which controls cell growth and protein production—to become overactive. This discovery provides new insight into the biological mechanisms underlying autism spectrum disorder. Understanding this signaling cascade could potentially lead to new therapeutic approaches and interventions for individuals with autism. The findings underscore how disruptions in brain cell communication can have cascading effects on neural development and function.