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A genome-wide association study identifies susceptibility variants for type 2 diabetes in Han Chinese.

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Date
2010-02-19
Authors
Tsai, Fuu-Jen
Yang, Chi-Fan
Chen, Ching-Chu
Chuang, Lee-Ming
Lu, Chieh-Hsiang
Chang, Chwen-Tzuei
Wang, Tzu-Yuan
Chen, Rong-Hsing
Shiu, Chiung-Fang
Liu, Yi-Min
Chang, Chih-Chun
Chen, Pei
Chen, Chien-Hsiun
Fann, Cathy SJ
Chen, Yuan-Tsong
Wu, Jer-Yuarn
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Abstract
To investigate the underlying mechanisms of T2D pathogenesis, we looked for diabetes susceptibility genes that increase the risk of type 2 diabetes (T2D) in a Han Chinese population. A two-stage genome-wide association (GWA) study was conducted, in which 995 patients and 894 controls were genotyped using the Illumina HumanHap550-Duo BeadChip for the first genome scan stage. This was further replicated in 1,803 patients and 1,473 controls in stage 2. We found two loci not previously associated with diabetes susceptibility in and around the genes protein tyrosine phosphatase receptor type D (PTPRD) (P = 8.54x10(-10); odds ratio [OR] = 1.57; 95% confidence interval [CI] = 1.36-1.82), and serine racemase (SRR) (P = 3.06x10(-9); OR = 1.28; 95% CI = 1.18-1.39). We also confirmed that variants in KCNQ1 were associated with T2D risk, with the strongest signal at rs2237895 (P = 9.65x10(-10); OR = 1.29, 95% CI = 1.19-1.40). By identifying two novel genetic susceptibility loci in a Han Chinese population and confirming the involvement of KCNQ1, which was previously reported to be associated with T2D in Japanese and European descent populations, our results may lead to a better understanding of differences in the molecular pathogenesis of T2D among various populations.
Type
Journal article
Subject
Adult
Asian Continental Ancestry Group
Case-Control Studies
China
Diabetes Mellitus, Type 2
Ethnic Groups
Female
Genetic Loci
Genetic Predisposition to Disease
Genome-Wide Association Study
Humans
KCNQ1 Potassium Channel
Male
Polymorphism, Single Nucleotide
Reproducibility of Results
Permalink
https://hdl.handle.net/10161/4464
Published Version (Please cite this version)
10.1371/journal.pgen.1000847
Publication Info
Tsai, Fuu-Jen; Yang, Chi-Fan; Chen, Ching-Chu; Chuang, Lee-Ming; Lu, Chieh-Hsiang; Chang, Chwen-Tzuei; ... Wu, Jer-Yuarn (2010). A genome-wide association study identifies susceptibility variants for type 2 diabetes in Han Chinese. PLoS Genet, 6(2). pp. e1000847. 10.1371/journal.pgen.1000847. Retrieved from https://hdl.handle.net/10161/4464.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Yuan-Tsong Chen

Professor Emeritus of Pediatrics
Our overall research interests are in translational research. We aim at translating the promise of genomic medicine into clinical reality. Specific projects at present time include: 1). Identification of novel genes/targets associated with human diseases. This includes susceptibility genes for common multi-factorial diseases and adverse drug reactions. Genetic epidemiology, mouse ENU mutagenesis, bioinformatics and proteomics are some approaches that we use in identif
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