Article (Scientific journals)
Facteurs genetiques de l'alcoolo-dependance Revue des principales donnees de la litterature.
Pinto, Emmanuel; Ansseau, Marc
2009In Encéphale (L'), 35 (5), p. 461-9
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Keywords :
Alcohol Dehydrogenase/genetics; Alcoholism/genetics/psychology; Aldehyde Dehydrogenase/genetics; Comorbidity; Female; Gene Expression Regulation/genetics; Genetic Predisposition to Disease/genetics; Genotype; Humans; Male; Phenotype; Polymorphism, Genetic/genetics; Receptors, Neurotransmitter/genetics; Risk Factors; Social Environment
Abstract :
[en] INTRODUCTION: Alcohol dependence is a complex and multifactorial disease resulting both from neurobiological mechanisms and environmental factors. It is frequently associated with comorbid psychiatric disorders or with specific personality or behavioral features. Although action can be taken on the environment in order to decrease the risk of the illness, current methods used to prevent or to treat this pathology show moderate efficacy: problematic consumption of ethanol in the general population as well as relapse rates under treatment in dependent patients remain indeed very high. LITERATURE FINDINGS: It is therefore of major importance to broaden our knowledge of alcohol dependence and its comorbidities so as to improve both their prevention and treatment. In this perspective, recent progress in the field of neurosciences may contribute to achieve this goal. Precisely, genetics is a promising way benefiting from many advances in genetic epidemiology, cellular and molecular biology, neuroimaging and pharmacology. In parallel with a better understanding of the neurobiology of addictions and associated behaviors, these techniques led to the identification of brain mechanisms in which a genetic variation may influence the individual vulnerability towards alcohol dependence. Moreover, there is growing evidence that alcoholism results from the interaction of genetic and environmental factors influencing both its expression and its course. Given the fact that alcohol-dependence seems highly heritable (50 to 60% of the variance in both men and women), this review assesses the role of some of the genomic regions linked with the disease, as well as the principal variants of candidate genes identified as specifically involved in the predisposition. Polymorphisms of genes influencing alcohol metabolism, GABAergic, dopaminergic and serotonergic neurotransmission seem, indeed, at stake in the development of alcohol-dependence and its related features such as personality, behavior, impulse control or craving. In the future, a better characterization of the links between genotypes and phenotypes will probably increase our ability to treat alcoholic patients.
Disciplines :
Psychiatry
Author, co-author :
Pinto, Emmanuel ;  Centre Hospitalier Universitaire de Liège - CHU > Psychiatrie et psychologie médicale
Ansseau, Marc ;  Université de Liège - ULiège > Département des sciences cliniques > Psychiatrie et psychologie médicale
Language :
French
Title :
Facteurs genetiques de l'alcoolo-dependance Revue des principales donnees de la litterature.
Alternative titles :
[en] Genetic factors of alcohol-dependence
Publication date :
2009
Journal title :
Encéphale (L')
ISSN :
0013-7006
eISSN :
2589-4935
Publisher :
Editions Doin Deren et Cie, Paris, France
Volume :
35
Issue :
5
Pages :
461-9
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 17 February 2009

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