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Leif Groop

Leif Groop

Principal investigator

Leif Groop

High-density haplotype structure and association testing of the insulin-degrading enzyme (IDE) gene with type 2 diabetes in 4,206 people

Author

  • JC Florez
  • S Wiltshire
  • CM Agapakis
  • NP Burtt
  • PIW de Bakker
  • Peter Almgren
  • KB Bostrom
  • T Tuomi
  • D Gaudet
  • MJ Daly
  • JN Hirschhorn
  • MI McCarthy
  • D Altshuler
  • Leif Groop

Summary, in English

The insulin-degrading enzyme is responsible for the intracellular proteolysis of insulin. Its gene IDE is located on chromosome 10, in an area with suggestive linkage to type 2 diabetes and related phenotypes. Due to the impact of genetic variants of this gene in rodents and the function of its protein product, it has been proposed as a candidate gene for type 2 diabetes. Various groups have explored the role of the common genetic variation of IDE on insulin resistance and reported associations of various single nucleotide polymorphisms (SNPs) and haplotypes on both type 2 diabetes and glycemic traits. We sought to characterize the haplotype structure of IDE in detail and replicate the association of common variants with type 2 diabetes, fasting insulin, fasting glucose, and insulin resistance. We assessed linkage disequilibrium, selected single-marker and multimarker tags, and genotyped these markers in several case-control and family-based samples totalling 4,206 Caucasian individuals. We observed no statistically significant evidence of association between single-marker or multimarker tests in IDE and type 2 diabetes. Nominally significant differences in quantitative traits are consistent with statistical noise. We conclude that common genetic variation at, IDE is unlikely to confer clinically significant risk of type 2 diabetes in Caucasians.

Department/s

  • Genomics, Diabetes and Endocrinology

Publishing year

2006

Language

English

Pages

128-135

Publication/Series

Diabetes

Volume

55

Issue

1

Document type

Journal article

Publisher

American Diabetes Association Inc.

Topic

  • Endocrinology and Diabetes

Status

Published

Research group

  • Genomics, Diabetes and Endocrinology

ISBN/ISSN/Other

  • ISSN: 1939-327X