Genetic variation at CHRNA5-CHRNA3-CHRNB4 interacts with smoking status to influence body mass index

Rachel M Freathy, Gbenga R Kazeem, Richard W Morris, Paul C D Johnson, Lavinia Paternoster, Shah Ebrahim, Andrew T Hattersley, Anita Hill, Aroon D Hingorani, Claus Holst, Barbara J Jefferis, Sofia I I Kring, Vincent Mooser, Sandosh Padmanabhan, Martin Preisig, Susan M Ring, Naveed Sattar, Mark N Upton, Peter Vollenweider, Gerard WaeberThorkild I A Sørensen, Timothy M Frayling, Graham Watt, Debbie A Lawlor, Peter H Whincup, Federica Tozzi, George Davey Smith, Marcus Munafò

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93 Citationer (Scopus)

Abstract

Cigarette smoking is associated with lower body mass index (BMI), and a commonly cited reason for unwillingness to quit smoking is a concern about weight gain. Common variation in the CHRNA5-CHRNA3-CHRNB4 gene region (chromosome 15q25) is robustly associated with smoking quantity in smokers, but its association with BMI is unknown. We hypothesized that genotype would accurately reflect smoking exposure and that, if smoking were causally related to weight, it would be associated with BMI in smokers, but not in never smokers.
OriginalsprogEngelsk
TidsskriftInternational Journal of Epidemiology
Vol/bind40
Udgave nummer6
Sider (fra-til)1617-28
Antal sider12
ISSN0300-5771
DOI
StatusUdgivet - 2011

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