No evidence of association between 118A>G OPRM1 polymorphism and heroin dependence in a large Bulgarian case-control sample.
- Authors
- Nikolov, Momchil A; Beltcheva, Olga; Galabova, Antoaneta; Ljubenova, Anna; Jankova, Elena; Gergov, Galin; Russev, Atanas A; Lynskey, Michael T; Nelson, Elliot C; Nesheva, Eleonora; Krasteva, Dorita; Lazarov, Philip; Mitev, Vanio I; Kremensky, Ivo M; Kaneva, Radka P; Todorov, Alexandre A
- Year
- 2011
- Journal
- Drug and alcohol dependence
- PMID
- 21277709
- DOI
- 10.1016/j.drugalcdep.2010.12.026
- PMCID
- PMC3128690
The μ-opioid receptor is the primary site of action of most opioids. The 118A>G (rs1799971) polymorphism in exon 1 of the μ-opioid receptor gene (OPRM1) leads to an Asn40Asp amino acid change that affects a putative N-glycosylation site. It has been widely investigated for association with alcohol and drug dependence and pain sensitivity, with mixed results. The aim of the current study was to examine whether this polymorphism was associated with heroin dependence in a large Bulgarian cohort of 1842 active users and 1451 population controls. SNP genotyping was done using Real-Time PCR TaqMan technology. Association analyses were conducted, separately for Roma and non-Roma participants. Our results suggest that there is no direct effect of 118A>G genotype on the risk for heroin dependence among active heroin users.
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| Title | Authors | Journal | Year | Link |
|---|---|---|---|---|
| Haplotype-Based Association and In Silico Studies of OPRM1 Gene Variants with Susceptibility to Opioid Dependence Among Addicted Iranians Undergoing Methadone Treatment. | Tolami HF et al. | — | 2020 | → |
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