Monoamine oxidase A genotype is associated with gang membership and weapon use

Kevin M. Beaver, Matt DeLisi, Michael George Vaughn, J. C. Barnes

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

Context: A functional polymorphism in the promoter region of the monoamine oxidase A (MAOA) gene has been found to be associated with a broad range of antisocial phenotypes, including physical violence. At the same time, it is well known that gang members represent some of the most serious violent offenders. Even so, no research has ever examined the association between MAOA and gang membership. Objectives: The aim of this study is to examine the association between MAOA and gang membership and between MAOA and weapon use. Design: We examined the effects of MAOA by using a molecular genetic association research design. Setting: A nonclinical sample was used in this study. Participants: Participants were drawn from the National Longitudinal Study of Adolescent Health (1155 females, 1041 males). Main Outcome Measures: The outcome measures of this study are gang membership and weapon use. Results: The low MAOA activity alleles conferred an increased risk of joining a gang and using a weapon in a fight for males but not for females. Moreover, among male gang members, those who used weapons in a fight were more likely to have a low MAOA activity allele when compared with male gang members who do not use weapons in a fight. Conclusions: Male carriers of low MAOA activity alleles are at risk for becoming a gang member and, once a gang member, are at risk for using weapons in a fight.

Original languageEnglish
Pages (from-to)130-134
Number of pages5
JournalComprehensive Psychiatry
Volume51
Issue number2
DOIs
Publication statusPublished - 2010 Mar 1

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Weapons
Monoamine Oxidase
Genotype
Alleles
Outcome Assessment (Health Care)
National Longitudinal Study of Adolescent Health
Genetic Research
Genetic Promoter Regions
Molecular Biology
Research Design
Phenotype
Research

All Science Journal Classification (ASJC) codes

  • Clinical Psychology
  • Psychiatry and Mental health

Cite this

Beaver, Kevin M. ; DeLisi, Matt ; Vaughn, Michael George ; Barnes, J. C. / Monoamine oxidase A genotype is associated with gang membership and weapon use. In: Comprehensive Psychiatry. 2010 ; Vol. 51, No. 2. pp. 130-134.
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Monoamine oxidase A genotype is associated with gang membership and weapon use. / Beaver, Kevin M.; DeLisi, Matt; Vaughn, Michael George; Barnes, J. C.

In: Comprehensive Psychiatry, Vol. 51, No. 2, 01.03.2010, p. 130-134.

Research output: Contribution to journalArticle

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