Cited by 754Pancreatic function and diabetesGenetic Associations and EpidemiologyDiabetes and associated disorders

The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.

Large-Scale Association Studies of Variants in Genes Encoding the Pancreatic β-Cell KATP Channel Subunits Kir6.2 (KCNJ11) and SUR1 (ABCC8) Confirm That the KCNJ11 E23K Variant Is Associated With Type 2 Diabetes

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Abstract

The genes ABCC8 and KCNJ11, which encode the subunits sulfonylurea receptor 1 (SUR1) and inwardly rectifying potassium channel (Kir6.2) of the β-cell ATP-sensitive potassium (KATP) channel, control insulin secretion. Common polymorphisms in these genes (ABCC8 exon 16–3t/c, exon 18 T/C, KCNJ11 E23K) have been variably associated with type 2 diabetes, but no large (∼2,000 subjects) case-control studies have been performed. We evaluated the role of these three variants by studying 2,486 U.K. subjects: 854 with type 2 diabetes, 1,182 population control subjects, and 150 parent-offspring type 2 diabetic trios. The E23K allele was associated with diabetes in the case-control study (odds ratio [OR] 1.18 [95% CI 1.04–1.34], P = 0.01) but did not show familial association with diabetes. Neither the exon 16 nor the exon 18 ABCC8 variants were associated with diabetes (1.04 [0.91–1.18], P = 0.57; 0.93 [0.71–1.23], P = 0.63, respectively). Meta-analysis of all case-control data showed that the E23K allele was associated with type 2 diabetes (K allele OR 1.23 [1.12–1.36], P = 0.000015; KK genotype 1.65 [1.34–2.02], P = 0.000002); but the ABCC8 variants were not associated. Our results confirm that E23K increases risk of type 2 diabetes and show that large-scale association studies are important for the identification of diabetes susceptibility alleles.

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Metadata

Authors
Gloyn, A. L., Weedon, M. N., Owen, K. R., Turner, M. J., Knight, B. A., Hitman, G., Walker, M., Levy, J. C., Sampson, M., Halford, S., McCarthy, M. I., Hattersley, A. T., & Frayling, T. M.
Affiliations
  • Centre for Molecular Genetics, Peninsula Medical School, Exeter, U.K.
  • University of London (GB)
  • Newcastle University (GB)
  • The Diabetes Research Laboratories, Radcliffe Infirmary, University of Oxford, Oxford, U.K.
  • Norfolk and Norwich University Hospital (GB)
  • Imperial College London (GB)
  • Centre for Human Genetics (GB)
Venue
Diabetes
Published
2003-02-01
Volume
52
Issue
2
Pages
568-572
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2169174186
Cited by
754
References
27
Citations by year
2026: 5 · 2025: 15 · 2024: 8 · 2023: 16 · 2022: 10 · 2021: 14 · 2020: 15 · 2019: 20 · 2018: 25 · 2017: 27 · 2016: 33 · 2015: 30 · 2014: 40 · 2013: 42 · 2012: 46
FWCI
38.35
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
  • UEA Digital Repository (University of East Anglia) (submittedVersion)
Funders
Medical Research Council
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
Keywords
type 2 diabetes, KCNJ11, ABCC8, Kir6.2, SUR1, ATP-sensitive potassium channels, genetic susceptibility, insulin secretion, pancreatic beta cells, parent-offspring trios, familial association
MeSH terms
Adult, Alleles, Diabetes Mellitus, Type 2, Exons, Female, Genotype, Humans, Islets of Langerhans, Male, Middle Aged, Receptors, Drug, Genetic Variation, Potassium Channels, Cohort Studies, ATP-Binding Cassette Transporters, Amino Acid Substitution, Potassium Channels, Inwardly Rectifying, Sulfonylurea Receptors

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