Variations with modest effects have an important role in the genetic background of type 2 diabetes and diabetes-related traits

The aim of the present study was to explore the role of variations with modest effects (previously identified by a large-scale meta-analysis in European populations) in the genetic background of type 2 diabetes (T2D) and diabetes-related traits in a Japanese population. We enrolled 2632 Japanese sub...

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Veröffentlicht in:Journal of human genetics 2012-12, Vol.57 (12), p.776-779
Hauptverfasser: Fujita, Hayato, Hara, Kazuo, Shojima, Nobuhiro, Horikoshi, Momoko, Iwata, Minoru, Hirota, Yushi, Tobe, Kazuyuki, Seino, Susumu, Kadowaki, Takashi
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container_end_page 779
container_issue 12
container_start_page 776
container_title Journal of human genetics
container_volume 57
creator Fujita, Hayato
Hara, Kazuo
Shojima, Nobuhiro
Horikoshi, Momoko
Iwata, Minoru
Hirota, Yushi
Tobe, Kazuyuki
Seino, Susumu
Kadowaki, Takashi
description The aim of the present study was to explore the role of variations with modest effects (previously identified by a large-scale meta-analysis in European populations) in the genetic background of type 2 diabetes (T2D) and diabetes-related traits in a Japanese population. We enrolled 2632 Japanese subjects with T2D and 2050 non-diabetic subjects. We analyzed nine single-nucleotide polymorphisms (SNPs), including rs340874 (PROX1), rs4607517 (GCK), rs2191349 (DGKB-TMEM195), rs7034200 (GLIS3), rs10885122 (ADRA2A), rs174550 (FADS1), rs11605924 (CRY2), rs10830963 (MTNR1B) and rs35767 (IGF1). rs340874 (PROX1) and rs174550 (FADS1) were significantly associated with T2D (P=0.0078, OR: 1.12; and P=0.0071, OR: 1.12, respectively). Subjects with more risk alleles related to nine SNPs had an increased risk of T2D (P=0.0017), as well as a higher fasting plasma glucose level (P=0.018), higher HbA(1c) level (P=0.013) and lower HOMA-β (P=0.033) compared with subjects who had fewer risk alleles. We identified a significant association of a SNP of FADS1 and a SNP near PROX1 with T2D in a Japanese population. The present findings suggest that inclusion of SNPs with a tendency to increase the disease risk captured more of the genetic background of T2D than that revealed by only assessing significant SNPs.
doi_str_mv 10.1038/jhg.2012.110
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subjects Aged
Alleles
Asian Continental Ancestry Group - genetics
Biomarkers - analysis
Blood Glucose - metabolism
Case-Control Studies
Diabetes
Diabetes mellitus (non-insulin dependent)
Diabetes Mellitus, Type 2 - genetics
Diabetes Mellitus, Type 2 - metabolism
Female
Genetic Predisposition to Disease
Genome-Wide Association Study
Genotype
Humans
Insulin - metabolism
Insulin-like growth factor I
Middle Aged
Phenotype
Polymorphism, Single Nucleotide - genetics
Population genetics
Risk Factors
Single-nucleotide polymorphism
title Variations with modest effects have an important role in the genetic background of type 2 diabetes and diabetes-related traits
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