Rare Genetic Disorder Gives Clues To Autism, Epilepsy, Mental Retardation

Studying a rare genetic disorder called tuberous sclerosis complex, researchers have uncovered a possible cause of some neurodevelopmental disorders: structural abnormalities in neurons. The growth of too many axons, resulting in an exuberance of brain connections, supports recent thinking that autism, epilepsy and mental retardation (all common complications of TSC) stem at least partly from abnormal brain connectivity. The researchers also found, in mice, that normal neuronal structure can potentially be restored.

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