Physical activity, smoking, and genetic predisposition to obesity in people from Pakistan: the PROMIS study

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Physical activity, smoking, and genetic predisposition to obesity in people from Pakistan: the PROMIS study

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Title: Physical activity, smoking, and genetic predisposition to obesity in people from Pakistan: the PROMIS study
Author: Ahmad, Shafqat; Zhao, Wei; Renström, Frida; Rasheed, Asif; Samuel, Maria; Zaidi, Mozzam; Shah, Nabi; Mallick, Nadeem Hayyat; Zaman, Khan Shah; Ishaq, Mohammad; Rasheed, Syed Zahed; Memon, Fazal-ur-Rheman; Hanif, Bashir; Lakhani, Muhammad Shakir; Ahmed, Faisal; Kazmi, Shahana Urooj; Frossard, Philippe; Franks, Paul W.; Saleheen, Danish

Note: Order does not necessarily reflect citation order of authors.

Citation: Ahmad, S., W. Zhao, F. Renström, A. Rasheed, M. Samuel, M. Zaidi, N. Shah, et al. 2015. “Physical activity, smoking, and genetic predisposition to obesity in people from Pakistan: the PROMIS study.” BMC Medical Genetics 16 (1): 114. doi:10.1186/s12881-015-0259-x. http://dx.doi.org/10.1186/s12881-015-0259-x.
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Abstract: Background: Multiple genetic variants have been reliably associated with obesity-related traits in Europeans, but little is known about their associations and interactions with lifestyle factors in South Asians. Methods: In 16,157 Pakistani adults (8232 controls; 7925 diagnosed with myocardial infarction [MI]) enrolled in the PROMIS Study, we tested whether: a) BMI-associated loci, individually or in aggregate (as a genetic risk score - GRS), are associated with BMI; b) physical activity and smoking modify the association of these loci with BMI. Analyses were adjusted for age, age2, sex, MI (yes/no), and population substructure. Results: Of 95 SNPs studied here, 73 showed directionally consistent effects on BMI as reported in Europeans. Each additional BMI-raising allele of the GRS was associated with 0.04 (SE = 0.01) kg/m2 higher BMI (P = 4.5 × 10−14). We observed nominal evidence of interactions of CLIP1 rs11583200 (Pinteraction = 0.014), CADM2 rs13078960 (Pinteraction = 0.037) and GALNT10 rs7715256 (Pinteraction = 0.048) with physical activity, and PTBP2 rs11165643 (Pinteraction = 0.045), HIP1 rs1167827 (Pinteraction = 0.015), C6orf106 rs205262 (Pinteraction = 0.032) and GRID1 rs7899106 (Pinteraction = 0.043) with smoking on BMI. Conclusions: Most BMI-associated loci have directionally consistent effects on BMI in Pakistanis and Europeans. There were suggestive interactions of established BMI-related SNPs with smoking or physical activity. Electronic supplementary material The online version of this article (doi:10.1186/s12881-015-0259-x) contains supplementary material, which is available to authorized users.
Published Version: doi:10.1186/s12881-015-0259-x
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4683724/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:23993632
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