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Sabol, Sue Z; Nelson, Mark L; Fisher, Craig; Gunzerath, Lorraine; Brody, Cindy L; Hu, Stella; Sirota, Leo A; Marcus, Stephen E; Greenberg, Benjamin D; IV, Frank R. Lucas; Benjamin, Jonathan; Murphy, Dennis L; Hamer, Dean H
Health psychology, 01/1999, Letnik: 18, Številka: 1Journal Article
Dopaminergic genes are likely candidates for heritable influences on cigarette smoking. In an accompanying article, Lerman et al. (1999) report associations between allele 9 of a dopamine transporter gene polymorphism (SLC6A3-9) and lack of smoking, late initiation of smoking, and length of quitting attempts. The present investigation extended their study by examining both smoking behavior and personality traits in a diverse population of nonsmokers, current smokers, and former smokers ( N = 1,107). A significant association between SLC6A3-9 and smoking status was confirmed and was due to an effect on cessation rather than initiation. The SLC6A3-9 polymorphism was also associated with low scores for novelty seeking, which was the most significant personality correlate of smoking cessation. It is hypothesized that individuals carrying the SLC6A3-9 polymorphism have altered dopamine transmission, which reduces their need for novelty and reward by external stimuli, including cigarettes.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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