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Nature Research, Nature Genetics, 2(45), p. 155-163, 2013

DOI: 10.1038/ng.2506

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Genome-wide association analyses identify multiple loci associated with central corneal thickness and keratoconus

Journal article published in 2013 by Cornelia M. van Duijn, Yi Lu, Veronique Vitart, Kathryn P. Burdon ORCID, Chiea Chuen Khor, Yelena Bykhovskaya, Alireza Mirshahi, Alex W. Hewitt, Demelza Koehn, Pirro G. Hysi, Wishal D. Ramdas, Tanja Zeller, Cornelia M. Duijn, Eranga N. Vithana, Chiea Chuen Khor and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Central corneal thickness (CCT) is associated with eye conditions including keratoconus and glaucoma. We performed a meta-analysis on >20,000 individuals in European and Asian populations that identified 16 new loci associated with CCT at genome-wide significance (P < 5 × 10(-8)). We further showed that 2 CCT-associated loci, FOXO1 and FNDC3B, conferred relatively large risks for keratoconus in 2 cohorts with 874 cases and 6,085 controls (rs2721051 near FOXO1 had odds ratio (OR) = 1.62, 95% confidence interval (CI) = 1.4-1.88, P = 2.7 × 10(-10), and rs4894535 in FNDC3B had OR = 1.47, 95% CI = 1.29-1.68, P = 4.9 × 10(-9)). FNDC3B was also associated with primary open-angle glaucoma (P = 5.6 × 10(-4); tested in 3 cohorts with 2,979 cases and 7,399 controls). Further analyses implicate the collagen and extracellular matrix pathways in the regulation of CCT.