Minority Health Archive

Genetic variability of smoking persistence in African Americans.

Hamidovic, Ajna and Kasberger, John L and Young, Taylor R and Goodloe, Robert J and Redline, Susan and Buxbaum, Sarah G and Benowitz, Neal L and Bergen, Andrew W and Butler, Kenneth R and Franceschini, Nora and Gharib, Sina A and Hitsman, Brian and Levy, Daniel and Meng, Yan and Papanicolaou, George J and Preis, Sarah R and Spring, Bonnie and Styn, Mindi A and Tong, Elisa K and White, Wendy B and Wiggins, Kerri L and Jorgenson, Eric (2011) Genetic variability of smoking persistence in African Americans. Cancer prevention research (Philadelphia, Pa.), 4 (5). pp. 729-734. ISSN 1940-6215

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To date, most genetic association analyses of smoking behaviors have been conducted in populations of European ancestry and many of these studies focused on the phenotype that measures smoking quantity, that is, cigarettes per day. Additional association studies in diverse populations with different linkage disequilibrium patterns and an alternate phenotype, such as total tobacco exposure which accounts for intermittent periods of smoking cessation within a larger smoking period as measured in large cardiovascular risk studies, can aid the search for variants relevant to smoking behavior. For these reasons, we undertook an association analysis by using a genotyping array that includes 2,100 genes to analyze smoking persistence in unrelated African American participants from the Atherosclerosis Risk in Communities study. A locus located approximately 4 kb downstream from the 3'-UTR of the brain-derived neurotrophic factor (BDNF) significantly influenced smoking persistence. In addition, independent variants rs12915366 and rs12914385 in the cluster of genes encoding nicotinic acetylcholine receptor subunits (CHRNA5-CHRNA3-CHRNB4) on 15q25.1 were also associated with the phenotype in this sample of African American subjects. To our knowledge, this is the first study to more extensively evaluate the genome in the African American population, as a limited number of previous studies of smoking behavior in this population included evaluations of only single genomic regions.

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Item Type: Article
Additional Information: This article is available at the publisher’s Web site. Access to the full text is subject to the publisher’s access restrictions.
Uncontrolled Keywords: smoking behaviors, smoking cessation, cardiovascular risk studies
Subjects: Health > Public Health > Health Risk Factors > Smoking & Tobacco Use
Research > Genetics and Race
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Depositing User: Users 141 not found.
Date Deposited: 14 Aug 2011 12:58
Last Modified: 14 Aug 2011 12:58
Link to this item (URI): http://health-equity.lib.umd.edu/id/eprint/3049

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