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  • Title: Involvement of the mu-opioid receptor gene polymorphism A118G in the efficacy of detoxification of alcohol dependent patients.
    Author: Marini V, Fucile C, Zuccoli ML, Testino G, Sumberaz A, Robbiano L, Martelli A, Mattioli F.
    Journal: Addict Behav; 2013 Mar; 38(3):1669-71. PubMed ID: 23254216.
    Abstract:
    INTRODUCTION: The A118G (rs 1799971) polymorphism in the mu-opioid receptor gene (OPRM1) has been reported to be associated with alcohol addiction. METHODS: In this study 109 patients diagnosed with alcohol dependence in accordance with DMS-IV criteria and 95 healthy subjects were enrolled and everyone has been genotyped. RESULTS: The percentage of alcoholic patients with higher than normal gamma-glutamyl transferase (GGT) levels significantly decreased after six months of standard detoxification treatment, both in patients with A/A genotype and in the other ones with A/G genotype. However, the percentage of alcohol dependent patients with the A/A genotype recorded a slight decrease of the GGT and the mean corpuscolar volume of erythrocytes (MCV) combination marker after six months of therapy (30% vs 12%), while subjects with the A/G genotype showed no variation. CONCLUSION: This finding suggests that alcohol dependent patients with the A/A genotype could have a faster restoration of their liver function than those ones with the A/G genotype: it might be possible that the presence of G allele confers on these patients a reduced ability in abstaining from drinking alcohol.
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