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Genome-wide association study of intraocular pressure identifies the GLCCI1/ICA1 region as a glaucoma susceptibility locus

  • A. Strange
  • , C. Bellenguez
  • , X. Sim
  • , R. Luben
  • , P.G. Hysi
  • , W.D. Ramdas
  • , L.M. van Koolwijk
  • , C. Freeman
  • , M. Pirinen
  • , Z. Su
  • , G. Band
  • , D. Vukcevic
  • , Cordelia Langford
  • , P. Deloukas
  • , S. Hunt
  • , E. Gray
  • , S. Dronov
  • , S.C. Potter
  • , A. Tashakkori-Ghanbaria
  • , S. Edkins
  • S.J. Bumpstead, J.M. Blackwell, E. Bramon, M. A. Brown, J.P. Casas, A. Corvin, A. Duncanson, J.A. Jankowski, H.S. Markus, C.G. Mathew, C.N. Palmer, R. Plomin, A. Rautanen, S.J. Sawcer, R.C. Trembath, N.W. Wood, I. Barroso, L.P. Leena Peltonen, P. Healey, P. McGuffin, F. Topouzis, C.C. Klaver, C.M. van Duijn, D.A. Mackey, T.L. Young, C. J. Hammond, K.-T. Khaw, N. Wareham, J.J. Wang, T.Y. Wong, P.J. Foster, P. Mitchell, C.C. Spencer, P. Donnelly, A.C. Viswanathan, Robert Pearson

    Research output: Contribution to journalArticlepeer-review

    Abstract

    To discover quantitative trait loci for intraocular pressure, amajor risk factor for glaucoma and the only modifiable one,weperformed agenome-wide association studyonadiscoverycohort of2175individualsfromSydney, Australia. We found a novel association between intraocular pressure and a common variant at 7p21 near to GLCCI1 and ICA1. The findings in this region were confirmed through two UK replication cohorts totalling 4866 individuals (rs59072263, P = 1.10 × 10). A copy of the G allele at this SNP is associated with an increase in mean IOP of 0.45 mmHg (95%CI = 0.30-0.61 mmHg). These results lend support to the implication of vesicle trafficking and glucocorticoid inducibility pathways in the determination of intraocular pressure and in the pathogenesis of primary open-angle glaucoma.
    Original languageEnglish
    Pages (from-to)4653-4660
    Number of pages8
    JournalHuman Molecular Genetics
    Volume22
    Issue number22
    DOIs
    Publication statusPublished - 2013

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