Type 2 diabetes whole-genome association study in four populations: The DiaGen consortium

  • Jukka T. Salonen
  • , Pekka Uimari
  • , Juha Matti Aalto
  • , Mia Pirskanen
  • , Jari Kaikkonen
  • , Boryana Todorova
  • , Jelena Hyppönen
  • , Veli Pekka Korhonen
  • , Janne Asikainen
  • , Christopher Devine
  • , Tomi Pekka Tuomainen
  • , Jan Luedemann
  • , Matthias Nauck
  • , Wolfgang Kerner
  • , Richard H. Stephens
  • , John P. New
  • , William E. Ollier
  • , J. Martin Gibson
  • , Antony Payton
  • , Michael A. Horan
  • Neil Pendleton, Walt Mahoney, David Meyre, Jerôme Delplanque, Philippe Froguel, Oren Luzzatto, Benjamin Yakir, Ariel Darvasi

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Type 2 diabetes (T2D) is a common, polygenic chronic disease with high heritability. The purpose of this whole-genome association study was to discover novel T2D-associated genes. We genotyped 500 familial cases and 497 controls with >300,000 HapMap-derived tagging single-nucleotide-polymorphism (SNP) markers. When a stringent statistical correction for multiple testing was used, the only significant SNP was at TCF7L2, which has already been discovered and confirmed as a T2D-susceptibility gene. For a replication study, we selected 10 SNPs in six chromosomal regions with the strongest association (singly or as part of a haplotype) for retesting in an independent case-control set including 2,573 T2D cases and 2,776 controls. The most significant replicated result was found at the AHI1-LOC441171 gene region. © 2007 by The American Society of Human Genetics. All rights reserved.
    Original languageEnglish
    Pages (from-to)338-345
    Number of pages7
    JournalAmerican Journal of Human Genetics
    Volume81
    Issue number2
    DOIs
    Publication statusPublished - Aug 2007

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