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32 results on '"Bencic, G"'

1. Comparison of A-scan and MRI for the measurement of axial length in silicone oil-filled eyes

Author

Bencic, G., Vatavuk, Z., Marotti, M., Loncar, V.L., Petric, I., Andrijevic-Derk, B., Skunca, J., and Mandic, Z.

Subjects
Myopia -- Diagnosis, Myopia -- Care and treatment, Myopia -- Research, CT imaging -- Usage, CT imaging -- Research, Magnetic resonance imaging -- Usage, Magnetic resonance imaging -- Research, Silicones in medicine -- Usage, Silicones in medicine -- Physiological aspects, Silicones in medicine -- Research, Biometry -- Research, Biometric technology, Health
Published
2009

5. Genome-wide association meta-analysis highlights light-induced signaling as a driver for refractive error

Author

Tedja, MS, Wojciechowski, R, Hysi, PG, Eriksson, N, Furlotte, NA, Verhoeven, VJM, Iglesias, AI, Meester-Smoor, MA, Tompson, SW, Fan, Q, Khawaja, AP, Cheng, C-Y, Höhn, R, Yamashiro, K, Wenocur, A, Grazal, C, Haller, T, Metspalu, A, Wedenoja, J, Jonas, JB, Wang, YX, Xie, J, Mitchell, P, Foster, PJ, Klein, BEK, Klein, R, Paterson, AD, Hosseini, SM, Shah, RL, Williams, C, Teo, YY, Tham, YC, Gupta, P, Zhao, W, Shi, Y, Saw, W-Y, Tai, E-S, Sim, XL, Huffman, JE, Polašek, O, Hayward, C, Bencic, G, Rudan, I, Wilson, JF, Consortium, Cream, Team, 23Andme Research, Consortium, Uk Biobank Eye And Vision, Joshi, PK, Tsujikawa, A, Matsuda, F, Whisenhunt, KN, Zeller, T, Van Der Spek, PJ, Haak, R, Meijers-Heijboer, H, Van Leeuwen, EM, Iyengar, SK, Lass, JH, Hofman, A, Rivadeneira, F, Uitterlinden, AG, Vingerling, JR, Lehtimäki, T, Raitakari, OT, Biino, G, Concas, MP, Schwantes-An, T-H, Igo, RP, Cuellar-Partida, G, Martin, NG, Craig, JE, Gharahkhani, P, Williams, KM, Nag, A, Rahi, JS, Cumberland, PM, Delcourt, C, Bellenguez, C, Ried, JS, Bergen, AA, Meitinger, T, Gieger, C, Wong, TY, Hewitt, AW, Mackey, DA, Simpson, CL, Pfeiffer, N, Pärssinen, O, Baird, PN, Vitart, V, Amin, N, Van Duijn, CM, Bailey-Wilson, JE, Young, TL, Saw, S-M, Stambolian, D, Macgregor, S, Guggenheim, JA, Tung, JY, Hammond, CJ, Klaver, CCW, Netherlands Institute for Neuroscience (NIN), Human genetics, Amsterdam Neuroscience - Complex Trait Genetics, Amsterdam Reproduction & Development (AR&D), Pediatric surgery, Tedja, Milly S [0000-0003-0356-9684], Hysi, Pirro G [0000-0001-5752-2510], Verhoeven, Virginie JM [0000-0001-7359-7862], Iglesias, Adriana I [0000-0001-5532-764X], Tompson, Stuart W [0000-0001-9788-6730], Khawaja, Anthony P [0000-0001-6802-8585], Yamashiro, Kenji [0000-0001-9354-8558], Wedenoja, Juho [0000-0002-6155-0378], Jonas, Jost B [0000-0003-2972-5227], Wang, Ya Xing [0000-0003-2749-7793], Foster, Paul J [0000-0002-4755-177X], Klein, Ronald [0000-0002-4428-6237], Shah, Rupal L [0000-0001-8789-8869], Hayward, Caroline [0000-0002-9405-9550], Rudan, Igor [0000-0001-6993-6884], Wilson, James F [0000-0001-5751-9178], Joshi, Peter K [0000-0002-6361-5059], Whisenhunt, Kristina N [0000-0003-2412-7666], Rivadeneira, Fernando [0000-0001-9435-9441], Biino, Ginevra [0000-0002-9936-946X], Gharahkhani, Puya [0000-0002-4203-5952], Williams, Katie M [0000-0003-4596-3938], Delcourt, Cécile [0000-0002-2099-0481], Bellenguez, Céline [0000-0002-1240-7874], Hewitt, Alex W [0000-0002-5123-5999], Baird, Paul N [0000-0002-1305-3502], Bailey-Wilson, Joan E [0000-0002-9153-2920], Young, Terri L [0000-0001-6994-9941], Guggenheim, Jeremy A [0000-0001-5164-340X], Hammond, Christopher J [0000-0002-3227-2620], Klaver, Caroline CW [0000-0002-2355-5258], Apollo - University of Cambridge Repository, Epidemiology, Ophthalmology, Clinical Genetics, Pathology, Internal Medicine, Graduate School, Human Genetics, Experimental Immunology, ANS - Complex Trait Genetics, and ARD - Amsterdam Reproduction and Development

Subjects
0301 basic medicine, Adult, Male, Cell type, ResearchInstitutes_Networks_Beacons/MICRA, In silico, taittovirheet, Genome-wide association study, Retinal Pigment Epithelium, Biology, Blindness, Polymorphism, Single Nucleotide, Sensory disorders Donders Center for Medical Neuroscience [Radboudumc 12], Article, Retina, White People, 03 medical and health sciences, HIGH-GRADE MYOPIA, RETINAL-PIGMENT EPITHELIUM, SEROTONIN PATHWAY GENES, FORM-DEPRIVATION MYOPIA, COMMON VARIANTS, OCULAR GROWTH, RETINITIS-PIGMENTOSA, GENOTYPE IMPUTATION, MISSENSE MUTATIONS, DOPAMINE-RECEPTORS, Asian People, refractive errors, Retinitis pigmentosa, Genetics, medicine, Myopia, Journal Article, Humans, Genetic Predisposition to Disease, 610 Medicine & health, Regulation of gene expression, Retinal pigment epithelium, medicine.disease, Refractive Errors, 030104 developmental biology, medicine.anatomical_structure, Manchester Institute for Collaborative Research on Ageing, Gene Expression Regulation, genetic factors, Eye disorder, Female, sense organs, geneettiset tekijät, Neuroscience, Genome-Wide Association Study, Signal Transduction
Abstract

Skin affections after sulfur mustard (SM) exposure include erythema, blister formation and severe inflammation. An antidote or specific therapy does not exist. Anti-inflammatory compounds as well as substances counteracting SM-induced cell death are under investigation. In this study, we investigated the benzylisoquinoline alkaloide berberine (BER), a metabolite in plants like berberis vulgaris, which is used as herbal pharmaceutical in Asian countries, against SM toxicity using a well-established in vitro approach. Keratinocyte (HaCaT) mono-cultures (MoC) or HaCaT/THP-1 co-cultures (CoC) were challenged with 100, 200 or 300 mM SM for 1 h. Post-exposure, both MoC and CoC were treated with 10, 30 or 50 mu M BER for 24 h. At that time, supernatants were collected and analyzed both for interleukine (IL) 6 and 8 levels and for content of adenylate-kinase (AK) as surrogate marker for cell necrosis. Cells were lysed and nucleosome formation as marker for late apoptosis was assessed. In parallel, AK in cells was determined for normalization purposes. BER treatment did not influence necrosis, but significantly decreased apoptosis. Anti-inflammatory effects were moderate, but also significant, primarily in CoC. Overall, BER has protective effects against SM toxicity in vitro. Whether this holds true should be evaluated in future in vivo studies.

Published
2018

6. Genome-wide association meta-analysis highlights light-induced signaling as a driver for refractive error

Author

Tedja, M.S., Wojciechowski, R., Hysi, P.G., Eriksson, N., Furlotte, N.A., Verhoeven, V.J., Iglesias, A.I., Meester-Smoor, M.A., Tompson, S.W., Fan, Q., Khawaja, A.P., Cheng, C.Y., Hohn, R., Yamashiro, K., Wenocur, A., Grazal, C., Haller, T., Metspalu, A., Wedenoja, J., Jonas, J.B., Wang, Y.X., Xie, J, Mitchell, P., Foster, P.J., Klein, B.E., Klein, R., Paterson, A.D., Hosseini, S.M., Shah, R.L., Williams, C., Teo, Y.Y., Tham, Y.C., Gupta, P., Zhao, W., Shi, Yuan, Saw, W.Y., Tai, E.S., Sim, X.L., Huffman, J.E., Polasek, O., Hayward, C., Bencic, G., Rudan, I., Wilson, J.F., Joshi, P.K., Tsujikawa, A., Matsuda, F., Whisenhunt, K.N., Zeller, T., Spek, P.J. van der, Haak, R., Meijers-Heijboer, H., Leeuwen, E.M. van, Iyengar, S.K., Lass, J.H., Hofman, A., Rivadeneira, F., Uitterlinden, A.G., Vingerling, J.R., Lehtimaki, T., Raitakari, O.T., Biino, G., Concas, M.P., Schwantes-An, T.H., Igo, R.P., Jr., Cuellar-Partida, G., Martin, N.G., Craig, J.E., Gharahkhani, P., Williams, K.M., Nag, A., Rahi, J.S., Cumberland, P.M., Delcourt, C, Bellenguez, C., Ried, J.S., Bergen, A.A., Meitinger, T., Gieger, C., Wong, T.Y., Hewitt, A.W., Mackey, D.A., Simpson, C.L., Pfeiffer, N., Parssinen, O., Baird, P.N., Vitart, V., Amin, N., Duijn, C.M. van, Bailey-Wilson, J.E., Young, T.L., Saw, S.M., Stambolian, D., MacGregor, S., Guggenheim, J.A., Tung, J.Y., Hammond, C.J., Klaver, C.C.W., Tedja, M.S., Wojciechowski, R., Hysi, P.G., Eriksson, N., Furlotte, N.A., Verhoeven, V.J., Iglesias, A.I., Meester-Smoor, M.A., Tompson, S.W., Fan, Q., Khawaja, A.P., Cheng, C.Y., Hohn, R., Yamashiro, K., Wenocur, A., Grazal, C., Haller, T., Metspalu, A., Wedenoja, J., Jonas, J.B., Wang, Y.X., Xie, J, Mitchell, P., Foster, P.J., Klein, B.E., Klein, R., Paterson, A.D., Hosseini, S.M., Shah, R.L., Williams, C., Teo, Y.Y., Tham, Y.C., Gupta, P., Zhao, W., Shi, Yuan, Saw, W.Y., Tai, E.S., Sim, X.L., Huffman, J.E., Polasek, O., Hayward, C., Bencic, G., Rudan, I., Wilson, J.F., Joshi, P.K., Tsujikawa, A., Matsuda, F., Whisenhunt, K.N., Zeller, T., Spek, P.J. van der, Haak, R., Meijers-Heijboer, H., Leeuwen, E.M. van, Iyengar, S.K., Lass, J.H., Hofman, A., Rivadeneira, F., Uitterlinden, A.G., Vingerling, J.R., Lehtimaki, T., Raitakari, O.T., Biino, G., Concas, M.P., Schwantes-An, T.H., Igo, R.P., Jr., Cuellar-Partida, G., Martin, N.G., Craig, J.E., Gharahkhani, P., Williams, K.M., Nag, A., Rahi, J.S., Cumberland, P.M., Delcourt, C, Bellenguez, C., Ried, J.S., Bergen, A.A., Meitinger, T., Gieger, C., Wong, T.Y., Hewitt, A.W., Mackey, D.A., Simpson, C.L., Pfeiffer, N., Parssinen, O., Baird, P.N., Vitart, V., Amin, N., Duijn, C.M. van, Bailey-Wilson, J.E., Young, T.L., Saw, S.M., Stambolian, D., MacGregor, S., Guggenheim, J.A., Tung, J.Y., Hammond, C.J., and Klaver, C.C.W.

Abstract

Item does not contain fulltext, Refractive errors, including myopia, are the most frequent eye disorders worldwide and an increasingly common cause of blindness. This genome-wide association meta-analysis in 160,420 participants and replication in 95,505 participants increased the number of established independent signals from 37 to 161 and showed high genetic correlation between Europeans and Asians (>0.78). Expression experiments and comprehensive in silico analyses identified retinal cell physiology and light processing as prominent mechanisms, and also identified functional contributions to refractive-error development in all cell types of the neurosensory retina, retinal pigment epithelium, vascular endothelium and extracellular matrix. Newly identified genes implicate novel mechanisms such as rod-and-cone bipolar synaptic neurotransmission, anterior-segment morphology and angiogenesis. Thirty-one loci resided in or near regions transcribing small RNAs, thus suggesting a role for post-transcriptional regulation. Our results support the notion that refractive errors are caused by a light-dependent retina-to-sclera signaling cascade and delineate potential pathobiological molecular drivers.

Published
2018

7. When do myopia genes have their effect? Comparison of genetic risks between children and adults

Author

Tideman, J.W., Fan, Q., Polling, J.R., Guo, X., Yazar, S., Khawaja, A., Hohn, R., Lu, Y., Jaddoe, V.W., Yamashiro, K., Yoshikawa, M., Gerhold-Ay, A., Nickels, S., Zeller, T., He, M., Boutin, T., Bencic, G., Vitart, V., Mackey, D.A., Foster, P.J., MacGregor, S., Williams, C., Saw, S.M., Guggenheim, J.A., Klaver, C.C.W., Tideman, J.W., Fan, Q., Polling, J.R., Guo, X., Yazar, S., Khawaja, A., Hohn, R., Lu, Y., Jaddoe, V.W., Yamashiro, K., Yoshikawa, M., Gerhold-Ay, A., Nickels, S., Zeller, T., He, M., Boutin, T., Bencic, G., Vitart, V., Mackey, D.A., Foster, P.J., MacGregor, S., Williams, C., Saw, S.M., Guggenheim, J.A., and Klaver, C.C.W.

Abstract

Item does not contain fulltext, Previous studies have identified many genetic loci for refractive error and myopia. We aimed to investigate the effect of these loci on ocular biometry as a function of age in children, adolescents, and adults. The study population consisted of three age groups identified from the international CREAM consortium: 5,490 individuals aged <10 years; 5,000 aged 10-25 years; and 16,274 aged >25 years. All participants had undergone standard ophthalmic examination including measurements of axial length (AL) and corneal radius (CR). We examined the lead SNP at all 39 currently known genetic loci for refractive error identified from genome-wide association studies (GWAS), as well as a combined genetic risk score (GRS). The beta coefficient for association between SNP genotype or GRS versus AL/CR was compared across the three age groups, adjusting for age, sex, and principal components. Analyses were Bonferroni-corrected. In the age group <10 years, three loci (GJD2, CHRNG, ZIC2) were associated with AL/CR. In the age group 10-25 years, four loci (BMP2, KCNQ5, A2BP1, CACNA1D) were associated; and in adults 20 loci were associated. Association with GRS increased with age; beta = 0.0016 per risk allele (P = 2 x 10-8 ) in <10 years, 0.0033 (P = 5 x 10-15 ) in 10- to 25-year-olds, and 0.0048 (P = 1 x 10-72 ) in adults. Genes with strongest effects (LAMA2, GJD2) had an early effect that increased with age. Our results provide insights on the age span during which myopia genes exert their effect. These insights form the basis for understanding the mechanisms underlying high and pathological myopia.

Published
2016

8. Genome-wide association study for refractive astigmatism reveals genetic co-determination with spherical equivalent refractive error: the CREAM consortium

Author

Li, Q. (Qing), Wojciechowski, R. (Robert), Simpson, C.L. (Claire), Hysi, P.G. (Pirro), Verhoeven, V.J.M. (Virginie), Ikram, M.K. (Kamran), Höhn, R. (René), Vitart, V. (Veronique), Hewit, A.W. (Alex), Oexle, K. (Konrad), Makela, K.M. (Kari Matti), MacGregor, S. (Stuart), Pirastu, M. (Mario), Fan, Q. (Qiao), Cheng, C-Y. (Ching-Yu), St Pourcain, B. (Beate), Mcmahon, G. (George), Kemp, J.P. (John), Northstone, K. (Kate), Rahi, J.S. (Jugnoo), Cumberland, P. (Phillippa), Martin, N.G. (Nicholas), Sanfilippo, P.G. (Paul G.), Lu, Y. (Yi), Wang, Y. (Ying), Hayward, C. (Caroline), Polasek, O. (Ozren), Campbell, H. (Harry), Bencic, G. (Goran), Wright, A. (Alan), Wedenoja, J. (Juho), Zeller, T. (Tanja), Schillert, A. (Arne), Mirshahi, A. (Alireza), Lackner, K.J. (Karl), Yip, S.P. (Shea Ping), Yap, M.K.H. (Maurice K. H.), Ried, J.S. (Janina), Gieger, C. (Christian), Murgia, D. (Daniela), Wilson, J.F. (James F), Fleck, B.W. (Brian W.), Yazar, S. (Seyhan), Vingerling, J.R. (Hans), Hofman, A. (Albert), Uitterlinden, A.G. (André), Rivadeneira Ramirez, F. (Fernando), Amin, N. (Najaf), Karssen, L.C. (Lennart), Oostra, B.A. (Ben), Zhou, X. (Xin), Teo, Y.Y. (Yik Ying), Tai, E.S. (Shyong), Vithana, E.N. (Eranga), Barathi, V.A. (Veluchamy), Zheng, Y. (Yingfeng), Siantar, R. (Rosalynn), Neelam, K. (Kumari), Shin, Y. (Youchan), Lam, J. (Janice), Yonova-Doing, E. (Ekaterina), Venturini, C. (Cristina), Hosseini, S.M. (S Mohsen), Wong, H.-S. (Hoi-Suen), Lehtimäki, T. (Terho), Kähönen, M. (Mika), Raitakari, O. (Olli), Timpson, N.J. (Nicholas), Evans, D.M. (David M.), Khor, C.C., Aung, T. (Tin), Young, T.L. (Terri), Mitchell, P. (Paul), Klein, B.E.K. (Barbara), Duijn, C.M. (Cornelia) van, Meitinger, T. (Thomas), Jonas, J.B. (Jost B.), Baird, P.N. (Paul), Mackey, D.A. (David), Wong, T.Y. (Tien Yin), Saw, S-M. (Seang-Mei), Pärssinen, O. (Olavi), Stambolian, D.E. (Dwight), Hammond, C.J. (Christopher), Klaver, C.C.W. (Caroline), Williams, C. (Cathy), Paterson, A.D. (Andrew), Bailey-Wilson, J.E. (Joan E.), Guggenheim, J. (Jean), Li, Q. (Qing), Wojciechowski, R. (Robert), Simpson, C.L. (Claire), Hysi, P.G. (Pirro), Verhoeven, V.J.M. (Virginie), Ikram, M.K. (Kamran), Höhn, R. (René), Vitart, V. (Veronique), Hewit, A.W. (Alex), Oexle, K. (Konrad), Makela, K.M. (Kari Matti), MacGregor, S. (Stuart), Pirastu, M. (Mario), Fan, Q. (Qiao), Cheng, C-Y. (Ching-Yu), St Pourcain, B. (Beate), Mcmahon, G. (George), Kemp, J.P. (John), Northstone, K. (Kate), Rahi, J.S. (Jugnoo), Cumberland, P. (Phillippa), Martin, N.G. (Nicholas), Sanfilippo, P.G. (Paul G.), Lu, Y. (Yi), Wang, Y. (Ying), Hayward, C. (Caroline), Polasek, O. (Ozren), Campbell, H. (Harry), Bencic, G. (Goran), Wright, A. (Alan), Wedenoja, J. (Juho), Zeller, T. (Tanja), Schillert, A. (Arne), Mirshahi, A. (Alireza), Lackner, K.J. (Karl), Yip, S.P. (Shea Ping), Yap, M.K.H. (Maurice K. H.), Ried, J.S. (Janina), Gieger, C. (Christian), Murgia, D. (Daniela), Wilson, J.F. (James F), Fleck, B.W. (Brian W.), Yazar, S. (Seyhan), Vingerling, J.R. (Hans), Hofman, A. (Albert), Uitterlinden, A.G. (André), Rivadeneira Ramirez, F. (Fernando), Amin, N. (Najaf), Karssen, L.C. (Lennart), Oostra, B.A. (Ben), Zhou, X. (Xin), Teo, Y.Y. (Yik Ying), Tai, E.S. (Shyong), Vithana, E.N. (Eranga), Barathi, V.A. (Veluchamy), Zheng, Y. (Yingfeng), Siantar, R. (Rosalynn), Neelam, K. (Kumari), Shin, Y. (Youchan), Lam, J. (Janice), Yonova-Doing, E. (Ekaterina), Venturini, C. (Cristina), Hosseini, S.M. (S Mohsen), Wong, H.-S. (Hoi-Suen), Lehtimäki, T. (Terho), Kähönen, M. (Mika), Raitakari, O. (Olli), Timpson, N.J. (Nicholas), Evans, D.M. (David M.), Khor, C.C., Aung, T. (Tin), Young, T.L. (Terri), Mitchell, P. (Paul), Klein, B.E.K. (Barbara), Duijn, C.M. (Cornelia) van, Meitinger, T. (Thomas), Jonas, J.B. (Jost B.), Baird, P.N. (Paul), Mackey, D.A. (David), Wong, T.Y. (Tien Yin), Saw, S-M. (Seang-Mei), Pärssinen, O. (Olavi), Stambolian, D.E. (Dwight), Hammond, C.J. (Christopher), Klaver, C.C.W. (Caroline), Williams, C. (Cathy), Paterson, A.D. (Andrew), Bailey-Wilson, J.E. (Joan E.), and Guggenheim, J. (Jean)

Abstract

To 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

Published
2015
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9. Genome-wide association study for refractive astigmatism reveals genetic co-determination with spherical equivalent refractive error: the CREAM consortium

Author

Li, Q, Wojciechowski, R, Simpson, CL, Hysi, PG, Verhoeven, VJM, Ikram, MK, Hoehn, R, Vitart, V, Hewitt, AW, 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, Mackey, DA, Wong, TY, Saw, S-M, Parssinen, O, Stambolian, D, Hammond, CJ, Klaver, CCW, Williams, C, Paterson, AD, Bailey-Wilson, JE, Guggenheim, JA, Li, Q, Wojciechowski, R, Simpson, CL, Hysi, PG, Verhoeven, VJM, Ikram, MK, Hoehn, R, Vitart, V, Hewitt, AW, 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, Mackey, DA, Wong, TY, Saw, S-M, Parssinen, O, Stambolian, D, Hammond, CJ, Klaver, CCW, Williams, C, Paterson, AD, Bailey-Wilson, JE, and Guggenheim, JA

Abstract

To 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.

Published
2015

10. Genome-wide meta-analysis of myopia and hyperopia provides evidence for replication of 11 loci

Author

Simpson, C.L. (Claire), Wojciechowski, R. (Robert), Oexle, K. (Konrad), Murgia, D. (Daniela), Portas, L. (Laura), Li, X. (Xiaohui), Virginie, J.M.V. (J.M. Verhoeven), Vitart, V. (Veronique), Schache, M. (Maria), Mohsen Hosseini, S., Hysi, P.G. (Pirro), Raffel, L.J. (Leslie), Cotch, M.F. (Mary Frances), Chew, E.Y. (Emily), Klein, B.E.K. (Barbara), Klein, R. (Ronald), Wong, T.Y. (Tien Yin), Duijn, C.M. (Cornelia) van, Mitchell, P. (Paul), Saw, S-M. (Seang-Mei), Fossarello, M. (Maurizio), Wang, J.J. (Jie Jin), Polasek, O. (Ozren), Campbell, H. (Harry), Rudan, I. (Igor), Oostra, B.A. (Ben), Uitterlinden, A.G. (André), Hofman, A. (Albert), Rivadeneira Ramirez, F. (Fernando), Amin, N. (Najaf), Karssen, L.C. (Lennart), Vingerling, J.R. (Hans), Döring, A. (Angela), Bettecken, T. (Thomas), Bencic, G. (Goran), Gieger, C. (Christian), Wichmann, H.E. (Heinz Erich), Wilson, J.F. (James F), Venturini, C. (Cristina), Fleck, B. (Brian), Cumberland, P. (Phillippa), Rahi, J.S. (Jugnoo), Hammond, C.J. (Christopher), Hayward, C. (Caroline), Wright, A. (Alan), Paterson, A.D. (Andrew), Baird, P.N. (Paul), Klaver, C.C.W. (Caroline), Rotter, J.I. (Jerome I.), Pirastu, M. (Mario), Meitinger, T. (Thomas), Bailey-Wilson, J.E. (Joan E.), Stambolian, D.E. (Dwight), Simpson, C.L. (Claire), Wojciechowski, R. (Robert), Oexle, K. (Konrad), Murgia, D. (Daniela), Portas, L. (Laura), Li, X. (Xiaohui), Virginie, J.M.V. (J.M. Verhoeven), Vitart, V. (Veronique), Schache, M. (Maria), Mohsen Hosseini, S., Hysi, P.G. (Pirro), Raffel, L.J. (Leslie), Cotch, M.F. (Mary Frances), Chew, E.Y. (Emily), Klein, B.E.K. (Barbara), Klein, R. (Ronald), Wong, T.Y. (Tien Yin), Duijn, C.M. (Cornelia) van, Mitchell, P. (Paul), Saw, S-M. (Seang-Mei), Fossarello, M. (Maurizio), Wang, J.J. (Jie Jin), Polasek, O. (Ozren), Campbell, H. (Harry), Rudan, I. (Igor), Oostra, B.A. (Ben), Uitterlinden, A.G. (André), Hofman, A. (Albert), Rivadeneira Ramirez, F. (Fernando), Amin, N. (Najaf), Karssen, L.C. (Lennart), Vingerling, J.R. (Hans), Döring, A. (Angela), Bettecken, T. (Thomas), Bencic, G. (Goran), Gieger, C. (Christian), Wichmann, H.E. (Heinz Erich), Wilson, J.F. (James F), Venturini, C. (Cristina), Fleck, B. (Brian), Cumberland, P. (Phillippa), Rahi, J.S. (Jugnoo), Hammond, C.J. (Christopher), Hayward, C. (Caroline), Wright, A. (Alan), Paterson, A.D. (Andrew), Baird, P.N. (Paul), Klaver, C.C.W. (Caroline), Rotter, J.I. (Jerome I.), Pirastu, M. (Mario), Meitinger, T. (Thomas), Bailey-Wilson, J.E. (Joan E.), and Stambolian, D.E. (Dwight)

Abstract

Refractive error (RE) is a complex, multifactorial disorder characterized by a mismatch between the optical power of the eye and its axial length that causes object images to be focused off the retina. The two major subtypes of RE are myopia (nearsightedness) and hyperopia (farsightedness), which represent opposite ends of the distribution of the quantitative measure of spherical refraction. We performed a fixed effects meta-analysis of genome-wide association results of myopia and hyperopia from 9 studies of European-derived populations: AREDS, KORA, FES, OGP-Talana, MESA, RSI, RSII, RSIII and ERF. One genome-wide significant region was observed for myopia, corresponding to a previously identified myopia locus on 8q12 (p = 1.25610-8), which has been reported by Kiefer et al. as significantly associated with myopia age at onset and Verhoeven et al. as significantly associated to mean spherical-equivalent (MSE) refractive error. We observed two genomewide significant associations

Published
2014
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11. Genome-Wide Meta-Analysis of Myopia and Hyperopia Provides Evidence for Replication of 11 Loci

Author

Miao, X, Simpson, CL, Wojciechowski, R, Oexle, K, Murgia, F, Portas, L, Li, X, Verhoeven, VJM, Vitart, V, Schache, M, Hosseini, SM, Hysi, PG, Raffel, LJ, Cotch, MF, Chew, E, Klein, BEK, Klein, R, Wong, TY, Van Duijn, CM, Mitchell, P, Saw, SM, Fossarello, M, Wang, JJ, Polasek, O, Campbell, H, Rudan, I, Oostra, BA, Uitterlinden, AG, Hofman, A, Rivadeneira, F, Amin, N, Karssen, LC, Vingerling, JR, Doering, A, Bettecken, T, Bencic, G, Gieger, C, Wichmann, H-E, Wilson, JF, Venturini, C, Fleck, B, Cumberland, PM, Rahi, JS, Hammond, CJ, Hayward, C, Wright, AF, Paterson, AD, Baird, PN, Klaver, CCW, Rotter, JI, Pirastu, M, Meitinger, T, Bailey-Wilson, JE, Stambolian, D, Miao, X, Simpson, CL, Wojciechowski, R, Oexle, K, Murgia, F, Portas, L, Li, X, Verhoeven, VJM, Vitart, V, Schache, M, Hosseini, SM, Hysi, PG, Raffel, LJ, Cotch, MF, Chew, E, Klein, BEK, Klein, R, Wong, TY, Van Duijn, CM, Mitchell, P, Saw, SM, Fossarello, M, Wang, JJ, Polasek, O, Campbell, H, Rudan, I, Oostra, BA, Uitterlinden, AG, Hofman, A, Rivadeneira, F, Amin, N, Karssen, LC, Vingerling, JR, Doering, A, Bettecken, T, Bencic, G, Gieger, C, Wichmann, H-E, Wilson, JF, Venturini, C, Fleck, B, Cumberland, PM, Rahi, JS, Hammond, CJ, Hayward, C, Wright, AF, Paterson, AD, Baird, PN, Klaver, CCW, Rotter, JI, Pirastu, M, Meitinger, T, Bailey-Wilson, JE, and Stambolian, D

Abstract

Refractive error (RE) is a complex, multifactorial disorder characterized by a mismatch between the optical power of the eye and its axial length that causes object images to be focused off the retina. The two major subtypes of RE are myopia (nearsightedness) and hyperopia (farsightedness), which represent opposite ends of the distribution of the quantitative measure of spherical refraction. We performed a fixed effects meta-analysis of genome-wide association results of myopia and hyperopia from 9 studies of European-derived populations: AREDS, KORA, FES, OGP-Talana, MESA, RSI, RSII, RSIII and ERF. One genome-wide significant region was observed for myopia, corresponding to a previously identified myopia locus on 8q12 (p = 1.25×10(-8)), which has been reported by Kiefer et al. as significantly associated with myopia age at onset and Verhoeven et al. as significantly associated to mean spherical-equivalent (MSE) refractive error. We observed two genome-wide significant associations with hyperopia. These regions overlapped with loci on 15q14 (minimum p value = 9.11×10(-11)) and 8q12 (minimum p value 1.82×10(-11)) previously reported for MSE and myopia age at onset. We also used an intermarker linkage- disequilibrium-based method for calculating the effective number of tests in targeted regional replication analyses. We analyzed myopia (which represents the closest phenotype in our data to the one used by Kiefer et al.) and showed replication of 10 additional loci associated with myopia previously reported by Kiefer et al. This is the first replication of these loci using myopia as the trait under analysis. "Replication-level" association was also seen between hyperopia and 12 of Kiefer et al.'s published loci. For the loci that show evidence of association to both myopia and hyperopia, the estimated effect of the risk alleles were in opposite directions for the two traits. This suggests that these loci are important contributors to variation of refractive error acros

Published
2014

12. Genome-Wide Meta-Analysis of Myopia and Hyperopia Provides Evidence for Replication of 11 Loci

Author

Simpson, CL, Wojciechowski, R, Oexle, K, Murgia, F, Portas, L, Li, XH, Verhoeven, Virginie, Vitart, V, Schache, M, Hosseini, SM, Hysi, PG, Raffel, LJ, Cotch, MF, Chew, E, Klein, BEK, Klein, R, Wong, TY (Tien Yin), Duijn, Cornelia, Mitchell, P, Saw, SM, Fossarello, M, Wang, JJ, Polasek, O, Campbell, H, Rudan, I, Oostra, Ben, Uitterlinden, André, Hofman, Bert, Rivadeneira, Fernando, Amin, Najaf, Karssen, Lennart, Vingerling, Hans, Doering, A, Bettecken, T, Bencic, G, Gieger, C, Wichmann, HE, Wilson, JF, Venturini, C, Fleck, B, Cumberland, PM, Rahi, JS, Hammond, CJ, Hayward, C, Wright, AF, Paterson, AD, Baird, PN, Klaver, Caroline, Rotter, JI, Pirastu, M, Meitinger, T, Bailey-Wilson, JE, Stambolian, D, Simpson, CL, Wojciechowski, R, Oexle, K, Murgia, F, Portas, L, Li, XH, Verhoeven, Virginie, Vitart, V, Schache, M, Hosseini, SM, Hysi, PG, Raffel, LJ, Cotch, MF, Chew, E, Klein, BEK, Klein, R, Wong, TY (Tien Yin), Duijn, Cornelia, Mitchell, P, Saw, SM, Fossarello, M, Wang, JJ, Polasek, O, Campbell, H, Rudan, I, Oostra, Ben, Uitterlinden, André, Hofman, Bert, Rivadeneira, Fernando, Amin, Najaf, Karssen, Lennart, Vingerling, Hans, Doering, A, Bettecken, T, Bencic, G, Gieger, C, Wichmann, HE, Wilson, JF, Venturini, C, Fleck, B, Cumberland, PM, Rahi, JS, Hammond, CJ, Hayward, C, Wright, AF, Paterson, AD, Baird, PN, Klaver, Caroline, Rotter, JI, Pirastu, M, Meitinger, T, Bailey-Wilson, JE, and Stambolian, D

Abstract

Refractive error (RE) is a complex, multifactorial disorder characterized by a mismatch between the optical power of the eye and its axial length that causes object images to be focused off the retina. The two major subtypes of RE are myopia (nearsightedness) and hyperopia (farsightedness), which represent opposite ends of the distribution of the quantitative measure of spherical refraction. We performed a fixed effects meta-analysis of genome-wide association results of myopia and hyperopia from 9 studies of European-derived populations: AREDS, KORA, FES, OGP-Talana, MESA, RSI, RSII, RSIII and ERF. One genome-wide significant region was observed for myopia, corresponding to a previously identified myopia locus on 8q12 (p = 1.25x10(-8)), which has been reported by Kiefer et al. as significantly associated with myopia age at onset and Verhoeven et al. as significantly associated to mean spherical-equivalent (MSE) refractive error. We observed two genome-wide significant associations with hyperopia. These regions overlapped with loci on 15q14 (minimum p value = 9.11x10(-11)) and 8q12 (minimum p value 1.82x10(-11)) previously reported for MSE and myopia age at onset. We also used an intermarker linkage-disequilibrium-based method for calculating the effective number of tests in targeted regional replication analyses. We analyzed myopia (which represents the closest phenotype in our data to the one used by Kiefer et al.) and showed replication of 10 additional loci associated with myopia previously reported by Kiefer et al. This is the first replication of these loci using myopia as the trait under analysis. "Replication-level'' association was also seen between hyperopia and 12 of Kiefer et al.'s published loci. For the loci that show evidence of association to both myopia and hyperopia, the estimated effect of the risk alleles were in opposite directions for the two traits. This suggests that these loci are important contributors to variation of refractive error acros

Published
2014

13. Genome-wide association study of biochemical traits in Korcula Island, Croatia 8

Author

Zemunik, T., Boban, M., Lauc, G., Jankovic, S., Rotim, K., Vatavuk, Z., Bencic, G., Dogas, Z., Boraska, V., Torlak, V., Susac, J., Zobic, I., Rudan, D., Pulanic, D., Modun, D., Mudnic, I., Gunjaca, G., Budimir, D., Hayward, C., Vitart, V., Wright, Alan, Campbell, Harry, and Rudan, I.

Subjects
Medicine(all)
Abstract

AIM:To identify genetic variants underlying biochemical traits--total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, triglycerides, uric acid, albumin, and fibrinogen, in a genome-wide association study in an isolated population where rare variants of larger effect may be more easily identified.METHODS:The study included 944 adult inhabitants of the island of Korcula, as a part of larger DNA-based genetic epidemiological study in 2007. Biochemical measurements were performed in a single laboratory with stringent internal and external quality control procedures. Examinees were genotyped using Human Hap370CNV chip by Illumina, with a genome-wide scan containing 346027 single nucleotide polymorphisms (SNP).RESULTS:A total of 31 SNPs were associated with 7 investigated traits at the level of PCONCLUSION:Although this study was underpowered for most of the reported associations to reach formal threshold of genome-wide significance under the assumption of independent multiple testing, replications of previous findings and consistency of association between the identified variants and more than one studied trait make such findings interesting for further functional follow-up studies. Changed allele frequencies in isolate population may contribute to identifying variants that would not be easily identified in much larger samples in outbred populations.

Published
2009

18. Genome-wide association study identifies genetic risk underlying primary rhegmatogenous retinal detachment

Author

Kirin, M., Chandra, A., Charteris, D.G., Hayward, C., Campbell, S., Celap, I., Bencic, G., Vatavuk, Z., Kirac, I., Richards, A.J., Tenesa, A., Snead, M.P., Fleck, B.W., Singh, J., Harsum, S., Maclaren, R.E., Hollander, A.I. den, Dunlop, M.G., Hoyng, C.B., Wright, A.F., Campbell, H., Vitart, V., Mitry, D., Kirin, M., Chandra, A., Charteris, D.G., Hayward, C., Campbell, S., Celap, I., Bencic, G., Vatavuk, Z., Kirac, I., Richards, A.J., Tenesa, A., Snead, M.P., Fleck, B.W., Singh, J., Harsum, S., Maclaren, R.E., Hollander, A.I. den, Dunlop, M.G., Hoyng, C.B., Wright, A.F., Campbell, H., Vitart, V., and Mitry, D.

Abstract

Item does not contain fulltext, Rhegmatogenous retinal detachment (RRD) is an important cause of vision loss and can potentially lead to blindness. The underlying pathogenesis is complex and incompletely understood. We applied a two-stage genetic association discovery phase followed by a replication phase in a combined total of 2833 RRD cases and 7871 controls. The discovery phase involved a genome-wide association scan of 867 affected individuals and 1953 controls from Scotland, followed by genotyping and testing 4347 highest ranking or candidate single nucleotide polymorphisms (SNPs) in independent sets of cases (1000) and controls (2912) of Dutch and British origin. None of the SNPs selected reached a Bonferroni-corrected threshold for significance (P < 1.27 x 10(-7)). The strongest association, for rs12960119 (P = 1.58 x 10(-7)) located within an intron of the SS18 gene. Further testing was carried out in independent case-control series from London (846 cases) and Croatia (120 cases). The combined meta-analysis identified one association reaching genome-wide significance for rs267738 (OR = 1.29, P = 2.11 x 10(-8)), a missense coding SNP and eQTL for CERS2 encoding the protein ceramide synthase 2. Several of the top signals showing suggestive significance in the combined meta-analysis encompassed genes with a documented role in cell adhesion or migration, including SS18, TIAM1, TSTA3 and LDB2, which warrant further investigation. This first genetic association study of RRD supports a polygenic component underlying RRD risk since 27.4% of the underlying RRD liability could be explained by the collective additive effects of the genotyped SNP from the discovery genome-wide scan.

Published
2013

23. Genome-wide association meta-analysis highlights light-induced signaling as a driver for refractive error.

Author

Tedja MS, Wojciechowski R, Hysi PG, Eriksson N, Furlotte NA, Verhoeven VJM, Iglesias AI, Meester-Smoor MA, Tompson SW, Fan Q, Khawaja AP, Cheng CY, Höhn R, Yamashiro K, Wenocur A, Grazal C, Haller T, Metspalu A, Wedenoja J, Jonas JB, Wang YX, Xie J, Mitchell P, Foster PJ, Klein BEK, Klein R, Paterson AD, Hosseini SM, Shah RL, Williams C, Teo YY, Tham YC, Gupta P, Zhao W, Shi Y, Saw WY, Tai ES, Sim XL, Huffman JE, Polašek O, Hayward C, Bencic G, Rudan I, Wilson JF, Joshi PK, Tsujikawa A, Matsuda F, Whisenhunt KN, Zeller T, van der Spek PJ, Haak R, Meijers-Heijboer H, van Leeuwen EM, Iyengar SK, Lass JH, Hofman A, Rivadeneira F, Uitterlinden AG, Vingerling JR, Lehtimäki T, Raitakari OT, Biino G, Concas MP, Schwantes-An TH, Igo RP Jr, Cuellar-Partida G, Martin NG, Craig JE, Gharahkhani P, Williams KM, Nag A, Rahi JS, Cumberland PM, Delcourt C, Bellenguez C, Ried JS, Bergen AA, Meitinger T, Gieger C, Wong TY, Hewitt AW, Mackey DA, Simpson CL, Pfeiffer N, Pärssinen O, Baird PN, Vitart V, Amin N, van Duijn CM, Bailey-Wilson JE, Young TL, Saw SM, Stambolian D, MacGregor S, Guggenheim JA, Tung JY, Hammond CJ, and Klaver CCW

Subjects
Adult, Asian People genetics, Blindness genetics, Blindness metabolism, Female, Gene Expression Regulation, Genetic Predisposition to Disease, Genome-Wide Association Study methods, Humans, Male, Myopia genetics, Polymorphism, Single Nucleotide, Refractive Errors metabolism, Retina metabolism, Retinal Pigment Epithelium metabolism, Signal Transduction, White People genetics, Refractive Errors genetics
Abstract

Refractive errors, including myopia, are the most frequent eye disorders worldwide and an increasingly common cause of blindness. This genome-wide association meta-analysis in 160,420 participants and replication in 95,505 participants increased the number of established independent signals from 37 to 161 and showed high genetic correlation between Europeans and Asians (>0.78). Expression experiments and comprehensive in silico analyses identified retinal cell physiology and light processing as prominent mechanisms, and also identified functional contributions to refractive-error development in all cell types of the neurosensory retina, retinal pigment epithelium, vascular endothelium and extracellular matrix. Newly identified genes implicate novel mechanisms such as rod-and-cone bipolar synaptic neurotransmission, anterior-segment morphology and angiogenesis. Thirty-one loci resided in or near regions transcribing small RNAs, thus suggesting a role for post-transcriptional regulation. Our results support the notion that refractive errors are caused by a light-dependent retina-to-sclera signaling cascade and delineate potential pathobiological molecular drivers.

Published
2018
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24. When do myopia genes have their effect? Comparison of genetic risks between children and adults.

Author

Tideman JW, Fan Q, Polling JR, Guo X, Yazar S, Khawaja A, Höhn R, Lu Y, Jaddoe VW, Yamashiro K, Yoshikawa M, Gerhold-Ay A, Nickels S, Zeller T, He M, Boutin T, Bencic G, Vitart V, Mackey DA, Foster PJ, MacGregor S, Williams C, Saw SM, Guggenheim JA, and Klaver CC

Subjects
Adolescent, Adult, Alleles, Biometry, Child, Female, Genetic Loci, Genotype, Humans, Male, Risk Factors, Young Adult, Gap Junction delta-2 Protein, Connexins genetics, Genome-Wide Association Study, Laminin genetics, Myopia genetics, Polymorphism, Single Nucleotide genetics
Abstract

Previous studies have identified many genetic loci for refractive error and myopia. We aimed to investigate the effect of these loci on ocular biometry as a function of age in children, adolescents, and adults. The study population consisted of three age groups identified from the international CREAM consortium: 5,490 individuals aged <10 years; 5,000 aged 10-25 years; and 16,274 aged >25 years. All participants had undergone standard ophthalmic examination including measurements of axial length (AL) and corneal radius (CR). We examined the lead SNP at all 39 currently known genetic loci for refractive error identified from genome-wide association studies (GWAS), as well as a combined genetic risk score (GRS). The beta coefficient for association between SNP genotype or GRS versus AL/CR was compared across the three age groups, adjusting for age, sex, and principal components. Analyses were Bonferroni-corrected. In the age group <10 years, three loci (GJD2, CHRNG, ZIC2) were associated with AL/CR. In the age group 10-25 years, four loci (BMP2, KCNQ5, A2BP1, CACNA1D) were associated; and in adults 20 loci were associated. Association with GRS increased with age; β = 0.0016 per risk allele (P = 2 × 10 -8 ) in <10 years, 0.0033 (P = 5 × 10 -15 ) in 10- to 25-year-olds, and 0.0048 (P = 1 × 10 -72 ) in adults. Genes with strongest effects (LAMA2, GJD2) had an early effect that increased with age. Our results provide insights on the age span during which myopia genes exert their effect. These insights form the basis for understanding the mechanisms underlying high and pathological myopia., (© 2016 WILEY PERIODICALS, INC.)

Published
2016
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25. Retinal nerve fibre layer thickness measurements after successful retinal detachment repair with silicone oil endotamponade.

Author

Zoric Geber M, Bencic G, Vatavuk Z, Ivekovic R, and Friberg TR

Subjects
Aged, Female, Humans, Intraocular Pressure physiology, Male, Middle Aged, Prospective Studies, Retinal Detachment diagnosis, Tomography, Optical Coherence, Visual Acuity physiology, Vitrectomy, Endotamponade, Laser Coagulation, Nerve Fibers pathology, Retinal Detachment surgery, Retinal Ganglion Cells pathology, Silicone Oils
Abstract

Aims: To measure peripapillary retinal nerve fibre layer thickness (RNFL) by using spectral domain optical coherence tomography (OCT) in patients who underwent successful retinal detachment repair with silicone oil tamponade., Methods: Sixty patients treated with pars plana vitrectomy and silicone oil tamponade for retinal detachment were prospectively enrolled in a study. Peripapillary RNFL thickness was measured with a Cirrus HD-OCT at 7, 30, 90 and 180 days postoperatively, using an Optic Disc Cube 200×200 protocol. The fellow eye of each study patient served as a control. Median peripapillary RNFL thickness in silicone oil filled eyes was compared with control eyes., Results: The median RNFL thickness in the group of vitrectomised eyes was significantly higher compared with control eyes at every visit. The analysis of variance showed that the median thickness in vitrectomised eyes differed between visits (F=4,3023; p=0.006). There was no time-related trend for RNFL thickness in this group. The analysis of variance of RNFL thickness in the fellow, unoperated eyes showed no difference between visits (F=2,3426; p=0.075)., Conclusions: In patients with silicone oil tamponade, peripapillary RNFL was significantly thicker in comparison with fellow unoperated eyes over a 6-month period., Trial Registration Number: NCT 01255306., (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.)

Published
2015
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26. Genome-wide association study for refractive astigmatism reveals genetic co-determination with spherical equivalent refractive error: the CREAM consortium.

Author

Li Q, Wojciechowski R, Simpson CL, Hysi PG, Verhoeven VJ, Ikram MK, Höhn R, Vitart V, Hewitt AW, Oexle K, Mäkelä KM, MacGregor S, Pirastu M, Fan Q, Cheng CY, St Pourcain B, McMahon G, Kemp JP, Northstone K, Rahi JS, Cumberland PM, Martin NG, Sanfilippo PG, Lu Y, Wang YX, Hayward C, Polašek O, Campbell H, Bencic G, Wright AF, Wedenoja J, Zeller T, Schillert A, Mirshahi A, Lackner K, Yip SP, Yap MK, 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 YY, Tai ES, Vithana E, Barathi V, Zheng Y, Siantar RG, Neelam K, Shin Y, Lam J, Yonova-Doing E, Venturini C, Hosseini SM, Wong HS, Lehtimäki T, Kähönen M, Raitakari O, Timpson NJ, Evans DM, Khor CC, Aung T, Young TL, Mitchell P, Klein B, van Duijn CM, Meitinger T, Jonas JB, Baird PN, Mackey DA, Wong TY, Saw SM, Pärssinen O, Stambolian D, Hammond CJ, Klaver CC, Williams C, Paterson AD, Bailey-Wilson JE, and Guggenheim JA

Subjects
Adult, Age Factors, Asian People, Astigmatism pathology, Calcium-Binding Proteins, Cohort Studies, Female, Genetic Markers, Humans, Male, Middle Aged, Neural Cell Adhesion Molecules, White People, Astigmatism genetics, Cell Adhesion Molecules, Neuronal genetics, Genome-Wide Association Study, High Mobility Group Proteins genetics, Nerve Tissue Proteins genetics
Abstract

To 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.

Published
2015
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27. Genome-wide meta-analysis of myopia and hyperopia provides evidence for replication of 11 loci.

Author

Simpson CL, Wojciechowski R, Oexle K, Murgia F, Portas L, Li X, Verhoeven VJ, Vitart V, Schache M, Hosseini SM, Hysi PG, Raffel LJ, Cotch MF, Chew E, Klein BE, Klein R, Wong TY, van Duijn CM, Mitchell P, Saw SM, Fossarello M, Wang JJ, Polašek O, Campbell H, Rudan I, Oostra BA, Uitterlinden AG, Hofman A, Rivadeneira F, Amin N, Karssen LC, Vingerling JR, Döring A, Bettecken T, Bencic G, Gieger C, Wichmann HE, Wilson JF, Venturini C, Fleck B, Cumberland PM, Rahi JS, Hammond CJ, Hayward C, Wright AF, Paterson AD, Baird PN, Klaver CC, Rotter JI, Pirastu M, Meitinger T, Bailey-Wilson JE, and Stambolian D

Subjects
Adult, Age of Onset, Aged, Aged, 80 and over, Alleles, Female, Genetic Association Studies, Genetic Markers genetics, Genetic Predisposition to Disease, Humans, Linkage Disequilibrium, Male, Middle Aged, Phenotype, Polymorphism, Single Nucleotide, White People genetics, Eye physiopathology, Hyperopia genetics, Myopia genetics
Abstract

Refractive error (RE) is a complex, multifactorial disorder characterized by a mismatch between the optical power of the eye and its axial length that causes object images to be focused off the retina. The two major subtypes of RE are myopia (nearsightedness) and hyperopia (farsightedness), which represent opposite ends of the distribution of the quantitative measure of spherical refraction. We performed a fixed effects meta-analysis of genome-wide association results of myopia and hyperopia from 9 studies of European-derived populations: AREDS, KORA, FES, OGP-Talana, MESA, RSI, RSII, RSIII and ERF. One genome-wide significant region was observed for myopia, corresponding to a previously identified myopia locus on 8q12 (p = 1.25×10(-8)), which has been reported by Kiefer et al. as significantly associated with myopia age at onset and Verhoeven et al. as significantly associated to mean spherical-equivalent (MSE) refractive error. We observed two genome-wide significant associations with hyperopia. These regions overlapped with loci on 15q14 (minimum p value = 9.11×10(-11)) and 8q12 (minimum p value 1.82×10(-11)) previously reported for MSE and myopia age at onset. We also used an intermarker linkage- disequilibrium-based method for calculating the effective number of tests in targeted regional replication analyses. We analyzed myopia (which represents the closest phenotype in our data to the one used by Kiefer et al.) and showed replication of 10 additional loci associated with myopia previously reported by Kiefer et al. This is the first replication of these loci using myopia as the trait under analysis. "Replication-level" association was also seen between hyperopia and 12 of Kiefer et al.'s published loci. For the loci that show evidence of association to both myopia and hyperopia, the estimated effect of the risk alleles were in opposite directions for the two traits. This suggests that these loci are important contributors to variation of refractive error across the distribution.

Published
2014
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28. Genetic influences on plasma CFH and CFHR1 concentrations and their role in susceptibility to age-related macular degeneration.

Author

Ansari M, McKeigue PM, Skerka C, Hayward C, Rudan I, Vitart V, Polasek O, Armbrecht AM, Yates JR, Vatavuk Z, Bencic G, Kolcic I, Oostra BA, Van Duijn CM, Campbell S, Stanton CM, Huffman J, Shu X, Khan JC, Shahid H, Harding SP, Bishop PN, Deary IJ, Moore AT, Dhillon B, Rudan P, Zipfel PF, Sim RB, Hastie ND, Campbell H, and Wright AF

Subjects
Alleles, Blood Proteins metabolism, Case-Control Studies, Complement Factor H genetics, Cross-Sectional Studies, Genetic Predisposition to Disease, Genetic Variation, Genome-Wide Association Study, Genotype, Humans, Introns, Macular Degeneration immunology, Polymorphism, Single Nucleotide, Sequence Deletion, Blood Proteins genetics, Complement C3b Inactivator Proteins genetics, Complement C3b Inactivator Proteins metabolism, Complement Factor H metabolism, Macular Degeneration genetics, Macular Degeneration metabolism
Abstract

It is a longstanding puzzle why non-coding variants in the complement factor H (CFH) gene are more strongly associated with age-related macular degeneration (AMD) than functional coding variants that directly influence the alternative complement pathway. The situation is complicated by tight genetic associations across the region, including the adjacent CFH-related genes CFHR3 and CFHR1, which may themselves influence the alternative complement pathway and are contained within a common deletion (CNP147) which is associated with protection against AMD. It is unclear whether this association is mediated through a protective effect of low plasma CFHR1 concentrations, high plasma CFH or both. We examined the triangular relationships of CFH/CFHR3/CFHR1 genotype, plasma CFH or CFHR1 concentrations and AMD susceptibility in combined case-control (1256 cases, 1020 controls) and cross-sectional population (n = 1004) studies and carried out genome-wide association studies of plasma CFH and CFHR1 concentrations. A non-coding CFH SNP (rs6677604) and the CNP147 deletion were strongly correlated both with each other and with plasma CFH and CFHR1 concentrations. The plasma CFH-raising rs6677604 allele and raised plasma CFH concentration were each associated with AMD protection. In contrast, the protective association of the CNP147 deletion with AMD was not mediated by low plasma CFHR1, since AMD-free controls showed increased plasma CFHR1 compared with cases, but it may be mediated by the association of CNP147 with raised plasma CFH concentration. The results are most consistent with a regulatory locus within a 32 kb region of the CFH gene, with a major effect on plasma CFH concentration and AMD susceptibility.

Published
2013
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29. Nine loci for ocular axial length identified through genome-wide association studies, including shared loci with refractive error.

Author

Cheng CY, Schache M, Ikram MK, Young TL, Guggenheim JA, Vitart V, MacGregor S, Verhoeven VJ, Barathi VA, Liao J, Hysi PG, Bailey-Wilson JE, St Pourcain B, Kemp JP, McMahon G, Timpson NJ, Evans DM, Montgomery GW, Mishra A, Wang YX, Wang JJ, Rochtchina E, Polasek O, Wright AF, Amin N, van Leeuwen EM, Wilson JF, Pennell CE, van Duijn CM, de Jong PT, Vingerling JR, Zhou X, Chen P, Li R, Tay WT, Zheng Y, Chew M, Burdon KP, Craig JE, Iyengar SK, Igo RP Jr, Lass JH Jr, Chew EY, Haller T, Mihailov E, Metspalu A, Wedenoja J, Simpson CL, Wojciechowski R, Höhn R, Mirshahi A, Zeller T, Pfeiffer N, Lackner KJ, Bettecken T, Meitinger T, Oexle K, Pirastu M, Portas L, Nag A, Williams KM, Yonova-Doing E, Klein R, Klein BE, Hosseini SM, Paterson AD, Makela KM, Lehtimaki T, Kahonen M, Raitakari O, Yoshimura N, Matsuda F, Chen LJ, Pang CP, Yip SP, Yap MK, Meguro A, Mizuki N, Inoko H, Foster PJ, Zhao JH, Vithana E, Tai ES, Fan Q, Xu L, Campbell H, Fleck B, Rudan I, Aung T, Hofman A, Uitterlinden AG, Bencic G, Khor CC, Forward H, Pärssinen O, Mitchell P, Rivadeneira F, Hewitt AW, Williams C, Oostra BA, Teo YY, Hammond CJ, Stambolian D, Mackey DA, Klaver CC, Wong TY, Saw SM, and Baird PN

Subjects
Adolescent, Adult, Aged, Asian People, Axial Length, Eye pathology, Eye Proteins metabolism, Female, Gene Expression, Genome-Wide Association Study, Humans, Male, Middle Aged, Polymorphism, Single Nucleotide, Refractive Errors ethnology, Refractive Errors pathology, Signal Transduction, White People, Axial Length, Eye metabolism, Eye Proteins genetics, Genetic Loci, Genetic Predisposition to Disease, Refractive Errors genetics
Abstract

Refractive errors are common eye disorders of public health importance worldwide. Ocular axial length (AL) is the major determinant of refraction and thus of myopia and hyperopia. We conducted a meta-analysis of genome-wide association studies for AL, combining 12,531 Europeans and 8,216 Asians. We identified eight genome-wide significant loci for AL (RSPO1, C3orf26, LAMA2, GJD2, ZNRF3, CD55, MIP, and ALPPL2) and confirmed one previously reported AL locus (ZC3H11B). Of the nine loci, five (LAMA2, GJD2, CD55, ALPPL2, and ZC3H11B) were associated with refraction in 18 independent cohorts (n = 23,591). Differential gene expression was observed for these loci in minus-lens-induced myopia mouse experiments and human ocular tissues. Two of the AL genes, RSPO1 and ZNRF3, are involved in Wnt signaling, a pathway playing a major role in the regulation of eyeball size. This study provides evidence of shared genes between AL and refraction, but importantly also suggests that these traits may have unique pathways., (Copyright © 2013 The American Society of Human Genetics. Published by Elsevier Inc. All rights reserved.)

Published
2013
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30. Genome-wide association study identifies genetic risk underlying primary rhegmatogenous retinal detachment.

Author

Kirin M, Chandra A, Charteris DG, Hayward C, Campbell S, Celap I, Bencic G, Vatavuk Z, Kirac I, Richards AJ, Tenesa A, Snead MP, Fleck BW, Singh J, Harsum S, Maclaren RE, den Hollander AI, Dunlop MG, Hoyng CB, Wright AF, Campbell H, Vitart V, and Mitry D

Subjects
Alleles, Case-Control Studies, Genetic Predisposition to Disease, Humans, Meta-Analysis as Topic, Odds Ratio, Polymorphism, Single Nucleotide, Eye Diseases, Hereditary genetics, Genome-Wide Association Study, Retinal Detachment genetics
Abstract

Rhegmatogenous retinal detachment (RRD) is an important cause of vision loss and can potentially lead to blindness. The underlying pathogenesis is complex and incompletely understood. We applied a two-stage genetic association discovery phase followed by a replication phase in a combined total of 2833 RRD cases and 7871 controls. The discovery phase involved a genome-wide association scan of 867 affected individuals and 1953 controls from Scotland, followed by genotyping and testing 4347 highest ranking or candidate single nucleotide polymorphisms (SNPs) in independent sets of cases (1000) and controls (2912) of Dutch and British origin. None of the SNPs selected reached a Bonferroni-corrected threshold for significance (P < 1.27 × 10(-7)). The strongest association, for rs12960119 (P = 1.58 × 10(-7)) located within an intron of the SS18 gene. Further testing was carried out in independent case-control series from London (846 cases) and Croatia (120 cases). The combined meta-analysis identified one association reaching genome-wide significance for rs267738 (OR = 1.29, P = 2.11 × 10(-8)), a missense coding SNP and eQTL for CERS2 encoding the protein ceramide synthase 2. Several of the top signals showing suggestive significance in the combined meta-analysis encompassed genes with a documented role in cell adhesion or migration, including SS18, TIAM1, TSTA3 and LDB2, which warrant further investigation. This first genetic association study of RRD supports a polygenic component underlying RRD risk since 27.4% of the underlying RRD liability could be explained by the collective additive effects of the genotyped SNP from the discovery genome-wide scan.

Published
2013
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32. [Secondary glaucoma as a masquerade for cutaneous melanoma metastatic to the vitreous and anterior chamber of the eye].

Author

Mandic Z, Novak Laus K, Ivekovic R, Bencic G, Matejcic A, Cupic H, and Maric Brozic J

Subjects
Anterior Chamber pathology, Diagnosis, Differential, Female, Humans, Middle Aged, Vitreous Body pathology, Eye Neoplasms diagnosis, Eye Neoplasms secondary, Glaucoma diagnosis, Glaucoma etiology, Melanoma diagnosis, Melanoma secondary, Skin Neoplasms diagnosis
Published
2009
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