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Genome-wide association study for refractive astigmatism reveals genetic co-determination with spherical equivalent refractive error: the CREAM consortium
journal contribution
posted on 2023-05-19, 00:17 authored by Qing, L, Wojciechowski, R, Simpson, CL, Hysi, PG, Verhoeven, VJM, Ikram, MK, Hohn, R, Vitart, V, Alexander HewittAlexander Hewitt, Oexle, K, Makela, K-M, MacGregor, S, Pirastu, M, Fan, Q, Cheng, C-Y, St Pourcain, B, McMahon, G, Kemp, JP, Northstone, K, Rahi, JS, Cumberland, PM, Martin, NG, Sanfilippo, PG, Lu, Y, Wang, YX, Hayward, C, Polasek, O, Campbell, H, Bencic, G, Wright, AF, Wedenoja, J, Zeller, T, Schillert, A, Mirshahi, A, Lackner, K, Yip, SP, Yap, MKH, Ried, JS, Gieger, C, Murgia, F, Wilson, JF, Fleck, B, Yazar, S, Vingerling, JR, Hofman, A, Uitterlinden, A, Rivadeneira, F, Amin, N, Karssen, L, Oostra, BA, Zhou, X, Teo, Y-Y, Tai, ES, Vithana, E, Barathi, V, Zheng, Y, Siantar, RG, Neelam, K, Shin, Y, Lam, J, Yonova-Doing, E, Venturini, C, Hosseini, SM, Wong, H-S, Lehtimaki, T, Kahonen, M, Raitakari, O, Timpson, NJ, Evans, DM, Khor, C-C, Aung, T, Young, TL, Mitchell, P, Klein, B, van Duijn, CM, Meitinger, T, Jonas, JB, Baird, PN, David MackeyDavid Mackey, Wong, TY, Saw, S-S, Parssinen, O, Stambolian, D, Hammond, CJ, Klaver, CCW, Williams, C, Paterson, AD, Bailey-Wilson, JE, Guggenheim, JATo identify genetic variants associated with refractive astigmatism in the general population, meta-analyses of genome-wide association studies were performed for: White Europeans aged at least 25 years (20 cohorts, N = 31,968); Asian subjects aged at least 25 years (7 cohorts, N = 9,295); White Europeans aged <25 years (4 cohorts, N = 5,640); and all independent individuals from the above three samples combined with a sample of Chinese subjects aged <25 years (N = 45,931). Participants were classified as cases with refractive astigmatism if the average cylinder power in their two eyes was at least 1.00 diopter and as controls otherwise. Genome-wide association analysis was carried out for each cohort separately using logistic regression. Meta-analysis was conducted using a fixed effects model. In the older European group the most strongly associated marker was downstream of the neurexin-1 (NRXN1) gene (rs1401327, P = 3.92E-8). No other region reached genome-wide significance, and association signals were lower for the younger European group and Asian group. In the meta-analysis of all cohorts, no marker reached genome-wide significance: The most strongly associated regions were, NRXN1 (rs1401327, P = 2.93E-07), TOX (rs7823467, P = 3.47E-07) and LINC00340 (rs12212674, P = 1.49E-06). For 34 markers identified in prior GWAS for spherical equivalent refractive error, the beta coefficients for genotype versus spherical equivalent, and genotype versus refractive astigmatism, were highly correlated (r = -0.59, P = 2.10E-04). This work revealed no consistent or strong genetic signals for refractive astigmatism; however, the TOX gene region previously identified in GWAS for spherical equivalent refractive error was the second most strongly associated region. Analysis of additional markers provided evidence supporting widespread genetic co-susceptibility for spherical and astigmatic refractive errors.
History
Publication title
Human GeneticsVolume
134Pagination
131-146ISSN
0340-6717Department/School
Menzies Institute for Medical ResearchPublisher
Springer-VerlagPlace of publication
175 Fifth Ave, New York, USA, Ny, 10010Repository Status
- Restricted
