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- Title
Association studies of variants in the genes involved in pancreatic beta-cell function in type 2 diabetes in Japanese subjects.
- Authors
Yokoi N; Kanamori M; Horikawa Y; Takeda J; Sanke T; Furuta H; Nanjo K; Mori H; Kasuga M; Hara K; Kadowaki T; Tanizawa Y; Oka Y; Iwami Y; Ohgawara H; Yamada Y; Seino Y; Yano H; Cox NJ; Seino S
- Abstract
Because impaired insulin secretion is characteristic of type 2 diabetes in Asians, including Japanese, the genes involved in pancreatic beta-cell function are candidate susceptibility genes for type 2 diabetes. We examined the association of variants in genes encoding several transcription factors (TCF1, TCF2, HNF4A, ISL1, IPF1, NEUROG3, PAX6, NKX2-2, NKX6-1, and NEUROD1) and genes encoding the ATP-sensitive K(+) channel subunits Kir6.2 (KCNJ11) and SUR1 (ABCC8) with type 2 diabetes in a Japanese cohort of 2,834 subjects. The exon 16 -3c/t variant rs1799854 in ABCC8 showed a significant association (P = 0.0073), and variants in several genes showed nominally significant associations (P < 0.05) with type 2 diabetes. Although the E23K variant rs5219 in KCNJ11 showed no association with diabetes in Japanese (for the K allele, odds ratio [OR] 1.08 [95% CI 0.97-1.21], P = 0.15), 95% CI around the OR overlaps in meta-analysis of European populations, suggesting that our results are not inconsistent with the previous studies. This is the largest association study so far conducted on these genes in Japanese and provides valuable information for comparison with other ethnic groups.
- Subjects
JAPAN; ALLELES; ANALYTICAL chemistry; DRUG receptors; GENES; GENETIC polymorphisms; GENETICS; ISLANDS of Langerhans; TYPE 2 diabetes; POLYMERASE chain reaction; PROTEINS; SEQUENCE analysis; GENOTYPES
- Publication
Diabetes, 2006, Vol 55, Issue 8, p2379
- ISSN
0012-1797
- Publication type
journal article
- DOI
10.2337/db05-1203