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Chromosome 2q31. 1 associates with ESRD in women with type 1 diabetes

  • Niina Sandholm
  • , Amy Jayne McKnight
  • , Rany M. Salem
  • , Eoin P. Brennan
  • , Carol Forsblom
  • , Valma Harjutsalo
  • , Ville Petteri Mäkinen
  • , Gareth J. McKay
  • , Denise M. Sadlier
  • , Winfred W. Williams
  • , Finian Martin
  • , Nicolae Mircea Panduru
  • , Lise Tarnow
  • , Jaakko Tuomilehto
  • , Karl Tryggvason
  • , Gianpaolo Zerbini
  • , Mary E. Comeau
  • , Carl D. Langefeld
  • , Catherine Godson
  • , Joel N. Hirschhorn
  • Alexander P. Maxwell, Jose C. Florez, Per Henrik Groop

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Sex and genetic variation influence the risk of developing diabetic nephropathy and ESRD in patients with type 1 diabetes. We performed a genome-wide association study in a cohort of 3652 patients from the Finnish Diabetic Nephropathy (FinnDiane) Study with type 1 diabetes to determine whether sex-specific genetic risk factors for ESRD exist. A common variant, rs4972593 on chromosome 2q31. 1, was associated with ESRD in women (P<5×10 -8) but not in men (P=0. 77). This association was replicated in the meta-analysis of three independent type 1 diabetes cohorts (P=0. 02) and remained significant for women (P<5×10-8; odds ratio, 1. 81 [95%confidence interval, 1. 47 to 2. 24]) upon combined meta-analysis of the discovery and replication cohorts. rs4972593 is located between the genes that code for the Sp3 transcription factor, which interacts directly with estrogen receptor a and regulates the expression of genes linked to glomerular function and the pathogenesis of nephropathy, and the CDCA7 transcription factor, which regulates cell proliferation. Further examination revealed potential transcription factor-binding sites within rs4972593 and predicted eight estrogenresponsive elements within 5 kb of this locus. Moreover, we found sex-specific differences in the glomerular expression levels of SP3 (P=0. 004). Overall, these results suggest that rs4972593 is a sex-specific genetic variant associated with ESRD in patients with type 1 diabetes and may underlie the sex-specific protection against ESRD.

    Original languageEnglish
    Pages (from-to)1537-1543
    Number of pages7
    JournalJournal of the American Society of Nephrology
    Volume24
    Issue number10
    DOIs
    Publication statusPublished or Issued - Oct 2013

    ASJC Scopus subject areas

    • General Medicine

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