Common genetic influences on depression, alcohol, and substance use disorders in Mexican-American families

Rene L Olvera, C. E. Bearden, Dawn I Velligan, L. Almasy, M. A. Carless, J. E. Curran, D. E. Williamson, R. Duggirala, J. Blangero, D. C. Glahn

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Multiple genetic and environmental factors influence the risk for both major depression and alcohol/substance use disorders. In addition, there is evidence that these illnesses share genetic factors. Although, the heritability of these illnesses is well established, relatively few studies have focused on ethnic minority populations. Here, we document the prevalence, heritability, and genetic correlations between major depression and alcohol and drug disorders in a large, community-ascertained sample of Mexican-American families. A total of 1,122 Mexican-American individuals from 71 extended pedigrees participated in the study. All subjects received in-person psychiatric interviews. Heritability, genetic, and environmental correlations were estimated using SOLAR. Thirty-five percent of the sample met criteria for DSM-IV lifetime major depression, 34% met lifetime criteria for alcohol use disorders, and 8% met criteria for lifetime drug use disorders. The heritability for major depression was estimated to be h2=0.393 (P=3.7×10-6). Heritability estimates were higher for recurrent depression (h2=0.463, P=4.0×10-6) and early onset depression (h2=0.485, P=8.5×10-5). While the genetic correlation between major depression and alcohol use disorders was significant (ρg=0.58, P=7×10-3), the environmental correlation between these traits was not significant. Although, there is evidence for increased rates of depression and substance use in US-born individuals of Mexican ancestry, our findings indicate that genetic control over major depression and alcohol/substance use disorders in the Mexican-American population is similar to that reported in other populations.

Original languageEnglish (US)
Pages (from-to)561-568
Number of pages8
JournalAmerican Journal of Medical Genetics, Part B: Neuropsychiatric Genetics
Volume156
Issue number5
DOIs
StatePublished - Jul 2011

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Substance-Related Disorders
Alcohols
Depression
Population
Pedigree
Diagnostic and Statistical Manual of Mental Disorders
Psychiatry
Interviews
Pharmaceutical Preparations

Keywords

  • Alcoholism
  • Family studies
  • Heritability
  • Major depression
  • Mexican-American

ASJC Scopus subject areas

  • Genetics(clinical)
  • Psychiatry and Mental health
  • Cellular and Molecular Neuroscience

Cite this

Common genetic influences on depression, alcohol, and substance use disorders in Mexican-American families. / Olvera, Rene L; Bearden, C. E.; Velligan, Dawn I; Almasy, L.; Carless, M. A.; Curran, J. E.; Williamson, D. E.; Duggirala, R.; Blangero, J.; Glahn, D. C.

In: American Journal of Medical Genetics, Part B: Neuropsychiatric Genetics, Vol. 156, No. 5, 07.2011, p. 561-568.

Research output: Contribution to journalArticle

Olvera, RL, Bearden, CE, Velligan, DI, Almasy, L, Carless, MA, Curran, JE, Williamson, DE, Duggirala, R, Blangero, J & Glahn, DC 2011, 'Common genetic influences on depression, alcohol, and substance use disorders in Mexican-American families', American Journal of Medical Genetics, Part B: Neuropsychiatric Genetics, vol. 156, no. 5, pp. 561-568. https://doi.org/10.1002/ajmg.b.31196
Olvera, Rene L ; Bearden, C. E. ; Velligan, Dawn I ; Almasy, L. ; Carless, M. A. ; Curran, J. E. ; Williamson, D. E. ; Duggirala, R. ; Blangero, J. ; Glahn, D. C. / Common genetic influences on depression, alcohol, and substance use disorders in Mexican-American families. In: American Journal of Medical Genetics, Part B: Neuropsychiatric Genetics. 2011 ; Vol. 156, No. 5. pp. 561-568.
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