Original scientific paper
https://doi.org/10.2478/aiht-2019-70-3153
The association between the OPRM1 A118G polymorphism and addiction in a Turkish population
Hülya Türkan
; Bozok University, Department of Anesthesiology and Reanimation, Yozgat, Turkey
Bensu Karahalil
; Gazi University, Faculty of Pharmacy Department of Toxicology, Ankara, Turkey
Ela Kadıoğlu
; Gazi University, Faculty of Pharmacy Department of Toxicology, Ankara, Turkey
Kenan Eren
; Alcohol and Substance Addiction Treatment and Research Center, Bakirköy State Hospital for Mental and Neurological Diseases, Istanbul, Turkey
Defne Tamar Gürol
; Alcohol and Substance Addiction Treatment and Research Center, Bakirköy State Hospital for Mental and Neurological Diseases, Istanbul, Turkey
Ali Esat Karakaya
; Gazi University, Faculty of Pharmacy Department of Toxicology, Ankara, Turkey
Abstract
Susceptibility to addiction has a complex genetic basis that includes genes associated with the action and metabolism of drugs of abuse. One important gene in that respect is OPRM1, which codes for the μ-opioid receptor and has an important role in mediating the rewarding effects of addiction substances. The aim of our study was to assess the prevalence of the OPRM1 A118G polymorphism (rs1799971) in Turkish population and to investigate its association with opioid and other substance addiction. In addition, we examined the association of rs1799971 in addicted patients who were also diagnosed with psychiatric disorders. The study included 103 patients addicted to opioids, cocaine, ecstasy, alcohol, lysergic acid diethylamide (LSD), cannabis, and sedative/hypnotic substances and 83 healthy volunteers with similar demographic features as controls. rs1799971 polymorphisms were identified with the polymerase chain reaction restriction fragment length polymorphism method (PCR-RFLP). The genotype frequencies were significantly higher in the addicted patients than controls (32.0 % vs 16.9 %, respectively; p=0.027). The prevalence of the G allele was 16.1 % in the addicted group and 8.4 % in the control group (p=0.031). Our study confirmed the association between the rs1799971(G) allele frequency and opioid and other substance addiction, but not with psychiatric disorders.
Keywords
alcohol; cannabis; cocaine; ecstasy; hypnotic substances; LSD; opioid; psychiatric disorders; rs1799971; sedatives; μ-opioid receptor
Hrčak ID:
220939
URI
Publication date:
11.6.2019.
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