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Alcohol dependence, disinhibited behavior and variation in the prodynorphin gene.
- Source :
-
Biological psychology [Biol Psychol] 2011 Sep; Vol. 88 (1), pp. 51-6. Date of Electronic Publication: 2011 Jul 05. - Publication Year :
- 2011
-
Abstract
- The results of the current analyses present preliminary evidence of an association between putatively functional variation in the prodynorphin (PDYN) gene and a dimensional measure of disinhibited behavior. A 68bp sequence in the core promoter region of the PDYN gene was genotyped in a community sample of 1021 adults aged 30-54. Participants were interviewed for lifetime history of DSM-IV alcohol dependence and completed two self-report measures of sensation seeking and impulsiveness. Fifteen percent (n=151) of the sample met DSM-IV criteria for alcohol dependence and while results did not support an association between the PDYN polymorphism and the diagnosis of alcohol dependence, we did observe an association between the "low" expressing L allele of the PDYN gene and a preference for engaging in disinhibited behavior. Additionally, people who had both a history of alcohol dependence and higher scores on this Disinhibited Behavior scale were most likely to carry an L allele. These results indicate that variation in the PDYN gene is associated with a dimensional trait or intermediate phenotype that reflects a preference for heavy drinking and engaging in related risky behaviors (e.g., drug use, sexual activity).<br /> (Published by Elsevier B.V.)
- Subjects :
- Adult
Diagnostic and Statistical Manual of Mental Disorders
Female
Gene Frequency
Genetic Association Studies
Genotype
Humans
Inhibition, Psychological
Male
Middle Aged
Personality genetics
Sex Factors
Alcoholism genetics
Alcoholism psychology
Enkephalins genetics
Genetic Predisposition to Disease
Impulsive Behavior genetics
Polymorphism, Genetic genetics
Protein Precursors genetics
Subjects
Details
- Language :
- English
- ISSN :
- 1873-6246
- Volume :
- 88
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Biological psychology
- Publication Type :
- Academic Journal
- Accession number :
- 21736916
- Full Text :
- https://doi.org/10.1016/j.biopsycho.2011.06.007