A Bivariate Genome-Wide Approach to Metabolic Syndrome: STAMPEED Consortium


Kraja, AT; Vaidya, D; Pankow, JS; Goodarzi, MO; Assimes, TL; Kullo, IJ; Sovio, U; Mathias, RA; Sun, YV; Franceschini, N; Absher, D; LI, G; Zhang, Q; Feitosa, MF; Glazer, NL; Haritunians, T; Hartikainen, AL; Knowles, JW; North, KE; Iribarren, C; Kral, B; Yanek, L; O'Reilly, PF; McCarthy, MI; Jaquish, C; Couper, DJ; Chakravarti, A; Psaty, BM; Becker, LC; Province, MA; Boerwinkle, E; Quertermous, T; Palotie, L; Jarvelin, MR; Becker, DM; Kardia, SL; Rotter, JI; Chen, YD; Borecki, IB; (2011) A Bivariate Genome-Wide Approach to Metabolic Syndrome: STAMPEED Consortium. Diabetes, 60 (4). pp. 1329-39. ISSN 0012-1797 DOI: https://doi.org/10.2337/db10-1011

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Abstract

OBJECTIVE The metabolic syndrome (MetS) is defined as concomitant disorders of lipid and glucose metabolism, central obesity, and high blood pressure, with an increased risk of type 2 diabetes and cardiovascular disease. This study tests whether common genetic variants with pleiotropic effects account for some of the correlated architecture among five metabolic phenotypes that define MetS. RESEARCH DESIGN AND METHODS Seven studies of the STAMPEED consortium, comprising 22,161 participants of European ancestry, underwent genome-wide association analyses of metabolic traits using a panel of approximately 2.5 million imputed single nucleotide polymorphisms (SNPs). Phenotypes were defined by the National Cholesterol Education Program (NCEP) criteria for MetS in pairwise combinations. Individuals exceeding the NCEP thresholds for both traits of a pair were considered affected. RESULTS Twenty-nine common variants were associated with MetS or a pair of traits. Variants in the genes LPL, CETP, APOA5 (and its cluster), GCKR (and its cluster), LIPC, TRIB1, LOC100128354/MTNR1B, ABCB11, and LOC100129150 were further tested for their association with individual qualitative and quantitative traits. None of the 16 top SNPs (one per gene) associated simultaneously with more than two individual traits. Of them 11 variants showed nominal associations with MetS per se. The effects of 16 top SNPs on the quantitative traits were relatively small, together explaining from approximately 9% of the variance in triglycerides, 5.8% of high-density lipoprotein cholesterol, 3.6% of fasting glucose, and 1.4% of systolic blood pressure. CONCLUSIONS Qualitative and quantitative pleiotropic tests on pairs of traits indicate that a small portion of the covariation in these traits can be explained by the reported common genetic variants.

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Non-Communicable Disease Epidemiology
PubMed ID: 21386085
Web of Science ID: 289496100029
URI: http://researchonline.lshtm.ac.uk/id/eprint/852

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