Long forms of the dopamine receptor (DRD4) gene VNTR are more prevalent in substance abusers

No interaction with functional alleles of the catechol-o-methyltransferase (COMT) gene

David J. Vandenbergh, Lawrence A. Rodriguez, Elisabeth Hivert, Jocelyn H. Schiller, Greg Villareal, Elisabeth W. Pugh, Herbert M. Lachman, George R. Uhl

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Substance abuse is a complex behavior that is caused by both environmental and genetic factors. Work to understand the genetic factors has focused on genes related to dopamine activity because of its critical role in rewarding and reinforcing behaviors. The DRD3 and other dopamine receptor subtypes are expressed in many areas of the limbic system, and have been the objects of study for their possible roles in several neuropsychiatric disorders. Interest in variants of the D4 gene was heightened by reports that some alleles were more frequent in individuals who score high on Novelty Seeking, an aspect of personality that may be related to drug seeking behavior. We now show that the long form of the DRD4 gene is more frequent in individuals with high quantity/frequency of drug use compared to controls (X2 = 5.7, df = 1, P = 0.017, odds ratio = 1.89, CI = 1.1-3.2). There is no difference in DRD3 allele frequencies in these samples, and there is no interaction of DRD4 alleles with those of the catecholamine-o-methyl-transferase gene (COMT) that we previously identified to be more frequent in substance abusers than controls.

Original languageEnglish (US)
Pages (from-to)678-683
Number of pages6
JournalAmerican Journal of Medical Genetics - Neuropsychiatric Genetics
Volume96
Issue number5
DOIs
StatePublished - Oct 9 2000

Fingerprint

Catechol O-Methyltransferase
Dopamine Receptors
Alleles
Genes
Drug-Seeking Behavior
Limbic System
Transferases
Gene Frequency
Substance-Related Disorders
Catecholamines
Personality
Dopamine
Odds Ratio
Pharmaceutical Preparations

Keywords

  • Association
  • Behavior genetics
  • DRD3
  • Drug abuse
  • Functional allele

ASJC Scopus subject areas

  • Genetics(clinical)
  • Neuropsychology and Physiological Psychology
  • Neuroscience(all)

Cite this

Long forms of the dopamine receptor (DRD4) gene VNTR are more prevalent in substance abusers : No interaction with functional alleles of the catechol-o-methyltransferase (COMT) gene. / Vandenbergh, David J.; Rodriguez, Lawrence A.; Hivert, Elisabeth; Schiller, Jocelyn H.; Villareal, Greg; Pugh, Elisabeth W.; Lachman, Herbert M.; Uhl, George R.

In: American Journal of Medical Genetics - Neuropsychiatric Genetics, Vol. 96, No. 5, 09.10.2000, p. 678-683.

Research output: Contribution to journalArticle

Vandenbergh, David J. ; Rodriguez, Lawrence A. ; Hivert, Elisabeth ; Schiller, Jocelyn H. ; Villareal, Greg ; Pugh, Elisabeth W. ; Lachman, Herbert M. ; Uhl, George R. / Long forms of the dopamine receptor (DRD4) gene VNTR are more prevalent in substance abusers : No interaction with functional alleles of the catechol-o-methyltransferase (COMT) gene. In: American Journal of Medical Genetics - Neuropsychiatric Genetics. 2000 ; Vol. 96, No. 5. pp. 678-683.
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