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Xi, B.* ; Takeuchi, F.* ; Meirhaeghe, A.* ; Kato, N.* ; Chambers, J.C.* ; Morris, A.P.* ; Cho, Y.S.* ; Zhang, W.* ; Mohlke, K.L.* ; Kooner, J.S.* ; Shu, X.O.* ; Pan, H.* ; Tai, E.S.* ; Pan, H.* ; Wu, J.* ; Zhou, D.* ; Chandak, G.R.* ; DIAGRAM Consortium (Gieger, C. ; Grallert, H. ; Illig, T. ; Klopp, N. ; Müller-Nurasyid, M. ; Peters, A.) ; AGEN-T2D Consortium (*) ; SAT2D Consortium (*)

Associations of genetic variants in/near body mass index-associated genes with type 2 diabetes: A systematic meta-analysis.

Clin. Endocrinol. 81, 702-710 (2014)
Open Access Green as soon as Postprint is submitted to ZB.
ObjectiveGenome-wide association studies have identified many obesity/body mass index (BMI)-associated loci in Europeans and East Asians. Since then, a large number of studies have investigated the role of BMI-associated loci in the development of type 2 diabetes (T2D). However, the results have been inconsistent. The objective of this study was to investigate the associations of eleven obesity/BMI loci with T2D risk and explore how BMI influences this risk. MethodsWe retrieved published literature from PubMed and Embase. The pooled odds ratios (OR) with 95% confidence intervals (CI) were calculated using fixed- or random-effect models. ResultsIn the meta-analysis of 42 studies for 11 obesity/BMI-associated loci, we observed a statistically significant association of the FTO rs9939609 polymorphism (66425 T2D cases/239689 normoglycaemic subjects; P=100x10(-41)) and six other variants with T2D risk (17915 T2D cases/27531 normoglycaemic individuals: n=40629-130001; all P<0001 for SH2B1 rs7498665, FAIM2 rs7138803, TMEM18 rs7561317, GNPDA2 rs10938397, BDNF rs925946 and NEGR1 rs2568958). After adjustment for BMI, the association remained statistically significant for four of the seven variants (all P<005 for FTO rs9939609, SH2B1 rs7498665, FAIM2 rs7138803, GNPDA2 rs10938397). Subgroup analysis by ethnicity demonstrated similar results. ConclusionsThis meta-analysis indicates that several BMI-associated variants are significantly associated with T2D risk. Some variants increase the T2D risk independent of obesity, while others mediate this risk through obesity.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Genome-wide Association; Obesity-related Traits; Fto Gene; Fat Mass; Chinese Population; Susceptibility Variants; Japanese Population; Insulin-resistance; Common Variation; Risk Loci
ISSN (print) / ISBN 0300-0664
e-ISSN 1365-2265
Quellenangaben Volume: 81, Issue: 5, Pages: 702-710 Article Number: , Supplement: ,
Publisher Wiley
Publishing Place Oxford [u.a.]
Reviewing status Peer reviewed