Catechol-O-methyltransferase (COMT) val158met Polymorphism as a Risk Factor for PTSD After Urban Violence

PTSD is a psychiatric disorder that requires a traumatic event as diagnostic criteria. Brazil has high rates of violence, and it is expected that urban victims of violence would be at risk to the development of PTSD. Studies have associated the COMT val158met polymorphism with diminished stress resilience, reduced ability to extinguish conditioned fear, and… (More)