Monoamine oxidase A regulates antisocial personality in whites with no history of physical abuse |
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| Authors: | Reti Irving M Xu Jerry Z Yanofski Jason McKibben Jodi Uhart Magdalena Cheng Yu-Jen Zandi Peter Bienvenu Oscar J Samuels Jack Willour Virginia Kasch-Semenza Laura Costa Paul Bandeen-Roche Karen Eaton William W Nestadt Gerald |
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| Affiliation: | aThe School of Medicine, Johns Hopkins University, Baltimore, MD, USA;bThe Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA;cThe National Institute on Aging, The National Institutes of Health, Baltimore, MD, USA |
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| Abstract: | ObjectivePreclinical 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.MethodsWe 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.ResultsWe 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).ConclusionThe 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. |
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