Brunner syndrome

Brunner syndrome
Other names	Monoamine oxidase A deficiency
This condition is inherited in an X-linked recessive manner.

Brunner syndrome is a rare genetic disorder associated with a mutation in the MAOA gene. It is characterized by lower than average IQ (typically about 85), problematic impulsive behavior (such as pyromania, hypersexuality and violence), sleep disorders and mood swings.^[1][2] It was identified in fourteen males from one family in 1993.^[1][3] It has since been discovered in additional families.^[4]