AU - Soleimani Asl, Sara AU - Roointan, Amir AU - Bergen, Hugo AU - Amiri, Shayan AU - Mardani, Parastoo AU - Ashtari, Niloufar AU - Shabani, Ronak AU - Mehdizadeh, Mehdi TI - Opioid Receptors Gene Polymorphism and Heroin Dependence in Iran PT - JOURNAL ARTICLE TA - BCN JN - BCN VO - 9 VI - 2 IP - 2 4099 - http://bcn.iums.ac.ir/article-1-872-en.html 4100 - http://bcn.iums.ac.ir/article-1-872-en.pdf SO - BCN 2 ABĀ  - Introduction: Genes often have multiple polymorphisms that interact with each other and the environment in different individuals. Variability in the opioid receptors can influence opiate withdrawal and dependence. In humans, A118G Single Nucleotide Polymorphisms (SNP) on μ-Opioid Receptor (MOR), 36 G>T in κ-Opioid Receptor (KOR), and T921C in the δ-Opioid Receptor (DOR) have been found to associate with substance dependence. Methods: To investigate the association between opioid receptors gene polymorphism and heroin addiction, 100 control subjects with no history of opioid use, and 100 heroin addicts (50% males and 50% females) in Tehran (capital of Iran), were evaluated. A118G, 36 G>T, and T921C SNPs on the MOR, KOR, DOR genes, respectively, were genotyped by sequencing. Results: We found no differences in either allele or genotype frequency for MOR, KOR and DOR genes SNPs between controls and subjects addicted to heroin. Conclusion: The relationships among polymorphisms may be important in determining the risk profile for complex diseases such as addiction, but opioid addiction is a multifactorial syndrome which is partially hereditary and partially affected by the environment. CP - IRAN IN - Cellular and Molecular Research Center, Department of Anatomy, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran. LG - eng PB - BCN PG - 101 PT - Original YR - 2018