CYP2A6 GENETIC POLYMORPHISM AND ITS RELATION TO THE RISK OF SMOKING DEPENDENCE IN IRANIAN MEN

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EMAM GHOREYSHI MASOUMEH; BOKAEI H.R.; KESHAVARZ MOJTABA

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Journal: Physiology and Pharmacology Year:2009 | Volume:12 | Issue:4 Page(s): 296-306

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Title

CYP2A6 GENETIC POLYMORPHISM AND ITS RELATION TO THE RISK OF SMOKING DEPENDENCE IN IRANIAN MEN

Author(s)

EMAM GHOREYSHI MASOUMEH | BOKAEI H.R. | KESHAVARZ MOJTABA | Issue Writer Certificate

Keywords

CYP2A6Q3

POLYMORPHISMQ3

SMOKINGQ3

IRANIANSQ4

Abstract

Introduction: Nicotine is the psychoactive substance responsible for establishing and maintaining SMOKING dependence. CYP2A6 is the primary enzyme that converts nicotine to its inactive metabolite cotinine. Genetic variations in CYP2A6 accounts for some of the inter-individual variability in nicotine metabolism and has been indicated to influence SMOKING behavior and dependence. Therefore, the aim of this study was to examine whether there is a relationship between CYP2A6 genetic POLYMORPHISM and SMOKING dependence in an Iranian population.Methods: We assessed 118 male non-smokers (1-99 cigarettes/lifetime) and 133 dependent current smokers for demographic, cigarette use history and DSM-IV dependence. Subjects were genotyped for CYP2A6 alleles associated with decreased nicotine metabolism (* 2, *4, or *9 allele) using allele-specific nested PCR. Based on their genotypes, subjects were grouped into slow (one or two copies of *2 or *4, or two *9 alleles), intermediate (one *9 allele), and normal (have no copies of *2, *4, or *9 alleles) nicotine metabolizer. Results: Intermediate nicotine metabolizers were at higher risk for becoming a dependent smoker (odd ratio [OR] = 3.71; p=0.009). Slow metabolizers had a significantly lower age of first SMOKING in comparison to normal and intermediate metabolizers (p=0.037). Cigarette consumption and the degree of SMOKING dependence were not significantly different among smokers with different CYP2A6 genotypes.Conclusion: In the Iranian male population, the risk for becoming a dependent smoker increases with genotypes for intermediate nicotine metabolism, while slow nicotine metabolizers experience SMOKING in lower ages. These findings increase our understanding of the effect of CYP2A6 genotypes on SMOKING dependence in Iranian male population and may help us develop new strategies for quitting SMOKING.

Cites

LUNG CANCER INCIDENCE TRENDS IN IRAN AND IN SIX GEOGRAPHICAL REGIONS OF THE COUNTRY (2000 - 2005)

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APA: Copy

EMAM GHOREYSHI, MASOUMEH, BOKAEI, H.R., & KESHAVARZ, MOJTABA. (2009). CYP2A6 GENETIC POLYMORPHISM AND ITS RELATION TO THE RISK OF SMOKING DEPENDENCE IN IRANIAN MEN. PHYSIOLOGY AND PHARMACOLOGY, 12(4), 296-306. SID. https://sid.ir/paper/75126/en

Vancouver: Copy

EMAM GHOREYSHI MASOUMEH, BOKAEI H.R., KESHAVARZ MOJTABA. CYP2A6 GENETIC POLYMORPHISM AND ITS RELATION TO THE RISK OF SMOKING DEPENDENCE IN IRANIAN MEN. PHYSIOLOGY AND PHARMACOLOGY[Internet]. 2009;12(4):296-306. Available from: https://sid.ir/paper/75126/en

IEEE: Copy

MASOUMEH EMAM GHOREYSHI, H.R. BOKAEI, and MOJTABA KESHAVARZ, “CYP2A6 GENETIC POLYMORPHISM AND ITS RELATION TO THE RISK OF SMOKING DEPENDENCE IN IRANIAN MEN,” PHYSIOLOGY AND PHARMACOLOGY, vol. 12, no. 4, pp. 296–306, 2009, [Online]. Available: https://sid.ir/paper/75126/en

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