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    Compr Psychiatry. 2011 Mar-Apr;52(2):188-94. doi: 10.1016/j.comppsych.2010.05.005. Epub 2010 Jul 8.

    Monoamine oxidase A regulates antisocial personality in whites with no history of physical abuse.

    Source

    The School of Medicine, Johns Hopkins University, Baltimore, MD, USA. imreti@jhmi.edu

    Abstract

    OBJECTIVE:

    Preclinical and human family studies clearly link monoamine oxidase A (MAOA) to aggression and antisocial personality (ASP). The 30-base pair variable number tandem repeat in the MAOA promoter regulates MAOA levels, but its effects on ASP in humans are unclear.

    METHODS:

    We evaluated the association of the variable number tandem repeat of the MAOA promoter with Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, ASP disorder (ASPD) traits in a community sample of 435 participants from the Hopkins Epidemiology of Personality Disorders Study.

    RESULTS:

    We did not find an association between the activity of the MAOA allele and ASPD traits; however, among whites, when subjects with a history of childhood physical abuse were excluded, the remaining subjects with low-activity alleles had ASPD trait counts that were 41% greater than those with high-activity alleles (P < .05).

    CONCLUSION:

    The high-activity MAOA allele is protective against ASP among whites with no history of physical abuse, lending support to a link between MAOA expression and antisocial behavior.

    Copyright © 2011 Elsevier Inc. All rights reserved.

    PMID:
    21295226
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC3058761
    Free PMC Article

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