Association of the calpain-10 gene with type 2 diabetes in Europeans: results of pooled and meta-analyses

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Takafumi Tsuchiya, Peter E H Schwarz, Laura Del Bosque-Plata, M Geoffrey Hayes, Christian Dina, Philippe Froguel, G Wayne Towers, Sabine Fischer, Theodora Temelkova-Kurktschiev, Hannes Rietzsch, Juergen Graessler, Josef Vcelák, Daniela Palyzová, Thomas Selisko, Bela Bendlová, Jan Schulze, Ulrich Julius, Markolf Hanefeld, Michael N Weedon, Julie C Evans & 12 others Timothy M Frayling, Andrew T Hattersley, Marju Orho-Melander, Leif Groop, Maciej T Malecki, Torben Hansen, Oluf Pedersen, Tasha E Fingerlin, Michael Boehnke, Craig L Hanis, Nancy J Cox, Graeme I Bell

We conducted pooled and meta-analyses of the association of the calpain-10 gene (CAPN10) polymorphisms SNP-43, Indel-19 and SNP-63 individually and as haplotypes with type 2 diabetes (T2D) in 3237 patients and 2935 controls of European ancestry. In the pooled analyses, the common SNP-43*G allele was associated with modest but statistically significant increased risk of T2D (odds ratio (OR)=1.11 (95% confidence interval (CI), 1.02-1.20), P=0.01). Two haplotype combinations were associated with increased risk of T2D (1-2-1/1-2-1, OR=1.20 (1.03-1.41), P=0.02; and 1-1-2/1-2-1, OR=1.26 (1.01-1.59), P=0.04) and one with decreased risk (1-1-1/2-2-1, OR=0.86 (0.75-0.99), P=0.03). The meta-analysis also showed a significant effect of the 1-2-1/1-2-1 haplogenotype on risk (OR=1.25 (1.05-1.50), P=0.01). However, there was evidence for heterogeneity with respect to this effect (P=0.06). The heterogeneity appeared to be due to data sets in which the cases were selected from samples used in linkage studies of T2D. Using only the population-based case-control samples removed the heterogeneity (P=0.89) and strengthened the evidence for association with T2D in both the pooled (SNP-43*G, OR=1.19 (1.07-1.32), P=0.001; 1-2-1/1-2-1 haplogenotype, OR=1.46 (1.19-1.78), P=0.0003; 1-1-2/1-2-1 haplogenotype, OR=1.52 (1.12-2.06), P=0.007; and 1-1-1/2-2-1 haplogenotype, OR=0.83 (0.70-0.99), P=0.03) and the meta-analysis (SNP-43*G, OR=1.18 (1.05-1.32), P=0.005; 1-2-1/1-2-1 haplogenotype, OR=1.68 (1.33-2.11), P=0.00001). The pooled and meta-analyses as well as the linkage disequilibrium and haplotype diversity studies suggest a role for genetic variation in CAPN10 affecting risk of T2D in Europeans.
Original languageEnglish
JournalMolecular Genetics and Metabolism
Volume89
Issue number1-2
Pages (from-to)174-84
Number of pages11
ISSN1096-7192
DOIs
Publication statusPublished - 2006

    Research areas

  • Calpain, Diabetes Mellitus, Type 2, European Continental Ancestry Group, Haplotypes, Humans, Linkage Disequilibrium, Polymorphism, Single Nucleotide

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