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RESEARCH PRODUCT

Association between Opioid Receptor mu 1 (OPRM1) Gene Polymorphisms and Tobacco and Alcohol Consumption in a Spanish Population.

Fernando VerdúAna CastellóFrancesc FrancésJose Antonio CostaOlga Portolés

subject

DrugAdultMaleAdolescentAlcohol DrinkingGenotypeSubstance-Related Disordersmedia_common.quotation_subjectReceptors Opioid muAlcoholDrug abusechemistry.chemical_compoundTobacco UseYoung AdultSex FactorsGene FrequencyPolymorphism (computer science)Surveys and QuestionnairesTobaccoGenetic variationmedicineHumansAssociation (psychology)media_commonAgedGeneticsAged 80 and overlcsh:R5-920Genetic polymorphismPolymorphism Geneticbusiness.industryAddictionMiddle Agedmedicine.diseaseSubstance abusePhenotypechemistryHaplotypesSample size determinationSpainCase-Control StudiesFemaleGene-Environment InteractionAlcohollcsh:Medicine (General)businessDemographyResearch Article

description

Evidence gained from animals and humans suggests that the encephalic opioid system might be involved in the development of drug addiction through its role in reward. Our aim is to assess the influence of genetic variations in the opioid receptor mu 1 on alcohol and tobacco consumption in a Spanish population. 763 unrelated individuals (465 women, 298 men) aged 18-85 years were recruited between October 2011 and April 2012. Participants were requested to answer a 35-item questionnaire on tobacco and alcohol consumption, as well as to complete the AUDIT and Fagerström tests. Individuals were genotyped for three polymorphisms in the opioid receptor mu 1 (OPRM1) gene, using a TaqMan® protocol. In males, the rs10485057 polymorphism was associated with total pure ethanol intake and with the risk of being an alcohol consumer. Also, this polymorphism was significantly associated with higher Fagerström scores. Rs1799971 had a different influence on adaptive and maladaptive patterns of alcohol use. Despite the limited sample size, our study might enrich current knowledge on patterns of alcohol use, because it encompasses both extreme and adaptive phenotypes, providing thus a wider perspective on this subject.

10.17305/bjbms.2015.243https://pubmed.ncbi.nlm.nih.gov/26042510