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Study of association between common variation in the insulin-like growth factor 2 gene and indices of obesity and body size in middle-aged men and women.: IGF2 gene and anthropometry in adults

Abstract : CONTEXT: The IGF2 gene (IGF2) plays a key role in growth and is a candidate for association with obesity. Previous studies have reported that polymorphisms in IGF2 are associated with body weight and body mass index (BMI), but the results have been inconsistent. OBJECTIVES: The aim of this study was primarily to confirm the association with BMI and, secondarily, to study the associations with other indices of body size. METHODS: In a sample of 2797 women and 2203 men aged 39-79 participating in the Norfolk arm of the European Prospective Investigation of Cancer, we genotyped three single nucleotide polymorphisms (SNPs) in the IGF2 gene that were previously associated with BMI [6815 A/T, 1156 T/C (G/A), and 820 G/A (ApaI)]. RESULTS: No significant associations were observed between these SNPs and BMI. However, all three SNPs were significantly associated with height (P = 0.03 to 0.001). In a backward elimination regression analysis, two SNPs, 1156 T/C (G/A) and 820 G/A, remained independently associated with height (P = 0.003 and P = 0.038, respectively). Haplotype analysis of these two SNPs showed that carriers of the GA haplotype were shorter than carriers of each of the other three haplotypes (P < 0.001 for all comparisons). CONCLUSIONS: We did not confirm the previously reported associations between IGF2 polymorphisms and BMI. However, our results suggest that common variation in the IGF2 gene may be associated with adult height. IGF2 could be considered as a candidate gene for future research on mechanisms for the association between height and chronic diseases, such as cancer, diabetes, and coronary heart disease.
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https://www.hal.inserm.fr/inserm-00175886
Contributor : Blandine de Lauzon-Guillain <>
Submitted on : Monday, October 1, 2007 - 4:06:11 PM
Last modification on : Wednesday, September 16, 2020 - 4:56:01 PM
Long-term archiving on: : Thursday, September 27, 2012 - 12:15:21 PM

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Barbara Heude, Ken Ong, Robert Luben, Nicholas Wareham, Manjinder Sandhu. Study of association between common variation in the insulin-like growth factor 2 gene and indices of obesity and body size in middle-aged men and women.: IGF2 gene and anthropometry in adults. Journal of Clinical Endocrinology and Metabolism, Endocrine Society, 2007, 92 (7), pp.2734-8. ⟨10.1210/jc.2006-1948⟩. ⟨inserm-00175886⟩

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