This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Monoamine oxidase A deficiency is a rare condition that is characterized by mild intellectual disability and behavioral difficulties (including aggressive and sometimes violent behaviors and autistic features). Affected people may also experience night terrors, tremor, stereotypical hand movements, and/or occasional body twitches. Signs and symptoms generally develop in childhood and the condition is seen almost exclusively in males. Monoamine oxidase A deficiency is caused by changes (mutations) in the MAOA gene and is inherited in an X-linked recessive manner. Treatment is based on the signs and symptoms present in each person. Some recent studies suggest that cautious treatment with certain medications (called selective serotonin reuptake inhibitors) and dietary modifications can improve symptoms.
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