Association of the serotonin transporter gene, neuroticism and smoking behaviours

Journal of Human Genetics
Colin O'GaraIan Craig

Abstract

Cigarette consumption and smoking cessation are influenced in part by genes. Personality traits have also been implicated in the aetiology of smoking. Neuroticism, a personality trait with a heritable component, correlates well with anxiety and depression, increasing the risk of being a smoker and decreasing the chance of smoking cessation. Several prior studies in non-British populations have given conflicting results as to whether some genetic polymorphisms affect the relationship between smoking and neuroticism. This study investigated the influence of serotonin transporter (5HTTLPR) genotypes on a composite measure of neuroticism and cigarette consumption/smoking cessation in a British population. Although neuroticism was significantly associated with cigarette consumption and smoking cessation, genotype did not affect this relationship. Our results do not support initial interest in utilising 5HTTLPR genotypes in combination with neuroticism ratings for predicting outcome in smoking cessation clinical settings.

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Citations

Nov 6, 2009·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Ju Wang, Ming D Li
Dec 4, 2010·Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco·J A EllisG C Patton
Feb 19, 2011·Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco·Tellervo KorhonenJaakko Kaprio
Jul 8, 2008·Neuroscience Letters·Christian MontagMartin Reuter
Sep 13, 2015·Physiology & Behavior·Huijie LiChongqi Jia
Apr 4, 2020·Experimental Biology and Medicine·Gea KõksSulev Kõks

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