Genetic Risk for Conduct Disorder Symptom Subtypes in an ADHD Sample: Specificity to Aggressive Symptoms.

The article investigates the role of the Catechol-O-methyl transferase (COMT) and serotonin transporter (SLC6A4) genes in the risk for conduct disorder (CD) and its symptomatic subtypes in the context of attention-deficit/hyperactivity disorder (ADHD). It shows that findings contribute to understanding of the genetic basis of antisocial behavior in the ADHD population. It offers additional support for the notion that aggressive and covert CD symptom subtypes are etiologically distinct.