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Common variants of the TCF7L2 gene are associated with increased risk of type 2 diabetes mellitus in a UK-resident South Asian population
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Rees, Simon D., Bellary, Srikanth, Britten, Abigail C., O'Hare, J. Paul, Kumar, Sudhesh, Barnett, A. H. and Kelly, M. Ann (2008) Common variants of the TCF7L2 gene are associated with increased risk of type 2 diabetes mellitus in a UK-resident South Asian population. BMC Medical Genetics, Vol.9 (No.8). doi:10.1186/1471-2350-9-8 ISSN 1471-2350.
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Official URL: http://dx.doi.org/10.1186/1471-2350-9-8
Abstract
Background
Recent studies have implicated variants of the transcription factor 7-like 2 (TCF7L2) gene in genetic susceptibility to type 2 diabetes mellitus in several different populations. The aim of this study was to determine whether variants of this gene are also risk factors for type 2 diabetes development in a UK-resident South Asian cohort of Punjabi ancestry.
Methods
We genotyped four single nucleotide polymorphisms (SNPs) of TCF7L2 (rs7901695, rs7903146, rs11196205 and rs12255372) in 831 subjects with diabetes and 437 control subjects.
Results
The minor allele of each variant was significantly associated with type 2 diabetes; the greatest risk of developing the disease was conferred by rs7903146, with an allelic odds ratio (OR) of 1.31 (95% CI: 1.11 – 1.56, p = 1.96 × 10-3). For each variant, disease risk associated with homozygosity for the minor allele was greater than that for heterozygotes, with the exception of rs12255372. To determine the effect on the observed associations of including young control subjects in our data set, we reanalysed the data using subsets of the control group defined by different minimum age thresholds. Increasing the minimum age of our control subjects resulted in a corresponding increase in OR for all variants of the gene (p ≤ 1.04 × 10-7).
Conclusion
Our results support recent findings that TCF7L2 is an important genetic risk factor for the development of type 2 diabetes in multiple ethnic groups.
Item Type: | Journal Article | ||||
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Subjects: | R Medicine > R Medicine (General) | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Biomedical Sciences > Translational & Experimental Medicine > Metabolic and Vascular Health (- until July 2016) Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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Library of Congress Subject Headings (LCSH): | Diabetes -- Great Britain, Gene mapping, Minorities -- Health and hygiene -- Great Britain, Asians -- Great Britain | ||||
Journal or Publication Title: | BMC Medical Genetics | ||||
Publisher: | BioMed Central Ltd. | ||||
ISSN: | 1471-2350 | ||||
Official Date: | 21 February 2008 | ||||
Dates: |
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Volume: | Vol.9 | ||||
Number: | No.8 | ||||
DOI: | 10.1186/1471-2350-9-8 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) |
Data sourced from Thomson Reuters' Web of Knowledge
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