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A gene variant near ATM is significantly associated with metformin treatment response in type 2 diabetes

A gene variant near ATM is significantly associated with metformin treatment response in type 2 diabetes: a replication and meta-analysis of five cohorts

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Authors

  • N van Leeuwen
  • G Nijpels
  • M L Becker
  • H Deshmukh
  • K Zhou
  • B H C Stricker
  • A G Uitterlinden
  • A Hofman
  • E van 't Riet
  • C N A Palmer
  • B Guigas
  • P E Slagboom
  • P Durrington
  • R A Calle
  • A Neil
  • G Hitman
  • S J Livingstone
  • H Colhoun
  • R R Holman
  • M I McCarthy
  • And 3 others
  • J M Dekker
  • L M 't Hart (Lead / Corresponding author)
  • Ewan Pearson (Lead / Corresponding author)

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    Info

    Original languageEnglish
    Pages1971-1977
    Number of pages7
    JournalDiabetologia
    Journal publication date2012
    Volume55
    Issue7
    DOIs
    StatePublished

    Abstract

    AIMS/HYPOTHESIS: In this study we aimed to replicate the previously reported association between the glycaemic response to metformin and the SNP rs11212617 at a locus that includes the ataxia telangiectasia mutated (ATM) gene in multiple additional populations. METHODS: Incident users of metformin selected from the Diabetes Care System West-Friesland (DCS, n?=?929) and the Rotterdam Study (n?=?182) from the Netherlands, and the CARDS Trial (n?=?254) from the UK were genotyped for rs11212617 and tested for an association with both HbA(1c) reduction and treatment success, defined as the ability to reach the treatment target of an HbA(1c) =7 % (53 mmol/mol). Finally, a meta-analysis including data from literature was performed. RESULTS: In the DCS cohort, we observed an association between rs11212617 genotype and treatment success on metformin (OR 1.27, 95% CI 1.03, 1.58, p?=?0.028); in the smaller Rotterdam Study cohort, a numerically similar but non-significant trend was observed (OR 1.45, 95% CI 0.87, 2.39, p?=?0.15); while in the CARDS cohort there was no significant association. In meta-analyses of these three cohorts separately or combined with the previously published cohorts, rs11212617 genotype is associated with metformin treatment success (OR 1.24, 95% CI 1.04, 1.49, p?=?0.016 and OR 1.25, 95% CI 1.33, 1.38, p?=?7.8?×?10(-6), respectively). CONCLUSIONS/INTERPRETATION: A gene variant near ATM is significantly associated with metformin treatment response in type 2 diabetic patients from the Netherlands and the UK. This is the first robustly replicated common susceptibility locus found to be associated with metformin treatment response.

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