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Obesity susceptibility loci and dietary intake in the Look AHEAD Trial
Journal article   Open access   Peer reviewed

Obesity susceptibility loci and dietary intake in the Look AHEAD Trial

Jeanne M. McCaffery, George D. Papandonatos, Inga Peter, Gordon S. Huggins, Hollie A. Raynor, Linda M. Delahanty, Lawrence J. Cheskin, Ashok Balasubramanyam, Lynne E. Wagenknecht, Rena R. Wing, …
The American journal of clinical nutrition, v 95(6), pp 1477-1486
01 Jun 2012
PMID: 22513296
url
https://academic.oup.com/ajcn/article-pdf/95/6/1477/23815472/1477.pdfView
Published, Version of Record (VoR) Open
url
https://doi.org/10.3945/ajcn.111.026955View
Published, Version of Record (VoR) Open

Abstract

Life Sciences & Biomedicine Nutrition & Dietetics Science & Technology
Background: Genome-wide association studies (GWAS) have identified consistent associations with obesity. However, the mechanisms remain unclear. Objective: The objective was to determine the association between obesity susceptibility loci and dietary intake. Design: The association of GWAS-identified obesity risk alleles (FTO, MC4R, SH2B1, BDNF, INSIG2, TNNI3K, NISCH-STAB1, MTIF3, MAP2K5, QPCTL/GIPR, and PPARG) with dietary intake, measured through food-frequency questionnaires, was investigated in 2075 participants from the Look AHEAD (Action for Health in Diabetes) clinical trial. We adjusted for age, sex, population stratification, and study site. Results: Obesity risk alleles at FTO rs1421085 significantly predicted more eating episodes per day (P = 0.001) an effect that persisted after adjustment for body weight (P = 0.004). Risk variants within BDNF were significantly associated with more servings from the dairy product and the meat, eggs, nuts, and beans food groups (P <= 0.004). The risk allele at SH2BI rs4788099 was significantly associated with more servings of dairy products (P = 0.001), whereas the risk allele at TNNI3K rs1514176 was significantly associated with a lower percentage of energy from protein (P = 0.002). Conclusion: These findings suggest that obesity risk loci may affect the pattern and content of food consumption among overweight or obese individuals with type 2 diabetes. The Look AHEAD Genetic Ancillary Study was registered at clinicaltrials.gov as NCT01270763 and the Look AHEAD study as NCT00017953. Am J Clin Nutr 2012;95:1477-86.

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Collaboration types
Domestic collaboration
Web of Science research areas
Nutrition & Dietetics
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