|
1
|
Seliniotaki AK, Ververi A, Koukoula S, Efstathiou G, Gerou S, Ziakas N, Mataftsi A. Female carrier of RPGR mutation presenting with high myopia. Ophthalmic Genet 2024; 45:159-163. [PMID: 37489109 DOI: 10.1080/13816810.2023.2237571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 07/12/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Inherited retinopathies can initially present with high refractive error in the first decade of life, before accompanying signs or symptoms are evident. CASE PRESENTATION A 4-year-old girl with high myopia (S-12.00 C-4.00 × 20 in the right and S-14.50 C-2.75 × 160 in the left eye), moderate visual acuity (0.3 logMAR in the right and 0.4 logMAR in the left eye), and left esotropia, presented with unremarkable past medical history and no family history of high refractive error or low vision. In optical coherence tomography imaging, macular thinning was evident, while morphology was normal. Full-field electroretinogram revealed normal implicit time recordings with reduced amplitudes in scotopic and photopic conditions. Fundus autofluorescence showed a radial pattern in both eyes. During a 5-year follow-up, significant myopia progression ensued (S-17.25 C-3.00 × 20 in the right and S-17.25 C-2.00 × 160 in the left eye), with a corresponding increase in axial length and an unchanged visual acuity. Whole-exome sequencing revealed a heterozygous termination codon variant c.212C>G (p.Ser71Ter) in RPGR, considered to be pathogenic. Segregation analysis precluded the variation in the mother and sister. A random pattern of X-chromosome inactivation was detected in the proband, without X-chromosome inactivation deviation. CONCLUSION This is the second report associating this specific RPGR mutation with high myopia and the first report to identify it in a female proband. This case provides additional evidence on the genotypic-phenotypic correlation between RPGR c.212C>G mutation and high myopia.
Collapse
Affiliation(s)
- Aikaterini K Seliniotaki
- 2nd Department of Ophthalmology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athina Ververi
- Genetic Unit, 1st Gynecological & Obstetrics Department, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Georgios Efstathiou
- Analysi Biopathological Diagnostic Research Laboratories, Thessaloniki, Greece
| | - Spyridon Gerou
- Analysi Biopathological Diagnostic Research Laboratories, Thessaloniki, Greece
| | - Nikolaos Ziakas
- 2nd Department of Ophthalmology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Asimina Mataftsi
- 2nd Department of Ophthalmology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| |
Collapse
|
|
2
|
Sánchez-Cazorla E, González-Atienza C, López-Vázquez A, Arruti N, Nieves-Moreno M, Noval S, Mena R, Rodríguez-Jiménez C, Rodríguez-Solana P, González-Iglesias E, Guerrero-Carretero M, D’Anna Mardero O, Coca-Robinot J, Acal JC, Blasco J, Castañeda C, Fraile Maya J, Del Pozo Á, Gómez-Pozo MV, Montaño VEF, Dios-Blázquez LD, Rodríguez-Antolín C, Gómez-Cano MDLÁ, Delgado-Mora L, Vallespín E. Whole-Exome Sequencing of 21 Families: Candidate Genes for Early-Onset High Myopia. Int J Mol Sci 2023; 24:15676. [PMID: 37958660 PMCID: PMC10649067 DOI: 10.3390/ijms242115676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
High myopia is the most severe and pathological form of myopia. It occurs when the spherical refractive error exceeds -6.00 spherical diopters (SDs) or the axial length (AL) of the eye is greater than 26 mm. This article focuses on early-onset high myopia, an increasingly common condition that affects children under 10 years of age and can lead to other serious ocular pathologies. Through the genetic analysis of 21 families with early-onset high myopia, this study seeks to contribute to a better understanding of the role of genetics in this disease and to propose candidate genes. Whole-exome sequencing studies with a panel of genes known to be involved in the pathology were performed in families with inconclusive results: 3% of the variants found were classified as pathogenic, 6% were likely pathogenic and the remaining 91% were variants of uncertain significance. Most of the families in this study were found to have alterations in several of the proposed genes. This suggests a polygenic inheritance of the pathology due to the cumulative effect of the alterations. Further studies are needed to validate and confirm the role of these alterations in the development of early-onset high myopia and its polygenic inheritance.
Collapse
Affiliation(s)
- Eloísa Sánchez-Cazorla
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
| | - Carmen González-Atienza
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
| | - Ana López-Vázquez
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
| | - Natalia Arruti
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
- European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
| | - María Nieves-Moreno
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
- European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
| | - Susana Noval
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
- European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
| | - Rocío Mena
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain;
| | - Carmen Rodríguez-Jiménez
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
| | - Patricia Rodríguez-Solana
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
| | - Eva González-Iglesias
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
| | - Marta Guerrero-Carretero
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
| | - Oriana D’Anna Mardero
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
| | - Javier Coca-Robinot
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
| | - Juan Carlos Acal
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
| | - Joana Blasco
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
| | - Carlos Castañeda
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
| | - Jesús Fraile Maya
- Department of Ophthalmology, IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (A.L.-V.); (N.A.); (M.N.-M.); (S.N.); (M.G.-C.); (O.D.M.); (J.C.-R.); (J.C.A.); (J.B.); (C.C.); (J.F.M.)
| | - Ángela Del Pozo
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain;
- Clinical Bioinformatics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain; (L.D.D.-B.); (C.R.-A.)
| | - María V. Gómez-Pozo
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain;
| | - Victoria E. F. Montaño
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain;
| | - Lucía De Dios-Blázquez
- Clinical Bioinformatics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain; (L.D.D.-B.); (C.R.-A.)
| | - Carlos Rodríguez-Antolín
- Clinical Bioinformatics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain; (L.D.D.-B.); (C.R.-A.)
| | - María de Los Ángeles Gómez-Cano
- Clinical Genetics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain; (M.d.L.Á.G.-C.); (L.D.-M.)
| | - Luna Delgado-Mora
- Clinical Genetics Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, CIBERER, Hospital Universitario La Paz, 28046 Madrid, Spain; (M.d.L.Á.G.-C.); (L.D.-M.)
| | - Elena Vallespín
- Molecular Ophthalmology Section, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, Hospital Universitario La Paz, 28046 Madrid, Spain; (E.S.-C.); (C.G.-A.); (R.M.); (C.R.-J.); (P.R.-S.); (E.G.-I.); (M.V.G.-P.); (V.E.F.M.)
- European Reference Network on Eye Diseases (ERN-EYE), Hospital Universitario La Paz, 28046 Madrid, Spain
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain;
| |
Collapse
|
|
3
|
Liu Y, Liu Y, Zhang W, Xue ZQ, Zhang FX, Xu WG, Zhuang WJ. Screening of genes interacting with high myopia and neuropsychiatric disorders. Sci Rep 2023; 13:18347. [PMID: 37884635 PMCID: PMC10603034 DOI: 10.1038/s41598-023-45463-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023] Open
Abstract
Clinical studies have demonstrated an association between high myopia (HM) and neuropsychiatric disorders; however, the underlying mechanism of the association is not clear. We used whole exome sequencing (WES) in combination with the Genetic Variants Classification Criteria and Guidelines published by the American College of Medical Genetics (ACMG) and bioinformatics analysis to clarify the interrelationship between candidate genes. Causative genes for ocular diseases (45.38%) followed by neuropsychiatric disorders (22.69%) accounted for the highest proportion of genes that exhibited high pathogenicity in HM patients were found. Four pathogenic gene mutations were identified according to ACMG guidelines: c.164_165insACAGCA and c.C1760T in POLG, c.G1291A in COL5A1, and c.G10242T in ZNF469. Three causative genes for neuropsychiatric diseases, PTPRN2, PCDH15 and CDH23, were found to fall at the HM locus. The above results suggest that these genes may interact in high myopia and neuropsychiatric diseases.
Collapse
Affiliation(s)
- Yang Liu
- People's Hospital of Ningxia Hui Autonomous Region (Ningxia Eye Hospital), Yinchuan, China
| | - Yang Liu
- People's Hospital of Ningxia Hui Autonomous Region (Ningxia Eye Hospital), Yinchuan, China
| | - Wen Zhang
- People's Hospital of Ningxia Hui Autonomous Region (Ningxia Eye Hospital), Yinchuan, China
| | - Zhong-Qi Xue
- Department of Ophthalmology, Affiliated Hospital of Qingdao Binhai University, Qingdao, China
| | - Fang-Xia Zhang
- People's Hospital of Ningxia Hui Autonomous Region (Ningxia Eye Hospital), Yinchuan, China
| | - Wei-Gang Xu
- People's Hospital of Ningxia Hui Autonomous Region (Ningxia Eye Hospital), Yinchuan, China.
| | - Wen-Juan Zhuang
- People's Hospital of Ningxia Hui Autonomous Region (Ningxia Eye Hospital), Yinchuan, China.
| |
Collapse
|
|
4
|
Haarman AE, Klaver CC, Tedja MS, Roosing S, Astuti G, Gilissen C, Hoefsloot LH, van Tienhoven M, Brands T, Magielsen FJ, Eussen BH, de Klein A, Brosens E, Verhoeven VJ. Identification of rare variants involved in high myopia unraveled by whole genome sequencing. OPHTHALMOLOGY SCIENCE 2023; 3:100303. [DOI: 10.1016/j.xops.2023.100303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 03/24/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023]
|
|
5
|
Musolf AM, Haarman AEG, Luben RN, Ong JS, Patasova K, Trapero RH, Marsh J, Jain I, Jain R, Wang PZ, Lewis DD, Tedja MS, Iglesias AI, Li H, Cowan CS, Biino G, Klein AP, Duggal P, Mackey DA, Hayward C, Haller T, Metspalu A, Wedenoja J, Pärssinen O, Cheng CY, Saw SM, Stambolian D, Hysi PG, Khawaja AP, Vitart V, Hammond CJ, van Duijn CM, Verhoeven VJM, Klaver CCW, Bailey-Wilson JE. Rare variant analyses across multiethnic cohorts identify novel genes for refractive error. Commun Biol 2023; 6:6. [PMID: 36596879 PMCID: PMC9810640 DOI: 10.1038/s42003-022-04323-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/30/2022] [Indexed: 01/05/2023] Open
Abstract
Refractive error, measured here as mean spherical equivalent (SER), is a complex eye condition caused by both genetic and environmental factors. Individuals with strong positive or negative values of SER require spectacles or other approaches for vision correction. Common genetic risk factors have been identified by genome-wide association studies (GWAS), but a great part of the refractive error heritability is still missing. Some of this heritability may be explained by rare variants (minor allele frequency [MAF] ≤ 0.01.). We performed multiple gene-based association tests of mean Spherical Equivalent with rare variants in exome array data from the Consortium for Refractive Error and Myopia (CREAM). The dataset consisted of over 27,000 total subjects from five cohorts of Indo-European and Eastern Asian ethnicity. We identified 129 unique genes associated with refractive error, many of which were replicated in multiple cohorts. Our best novel candidates included the retina expressed PDCD6IP, the circadian rhythm gene PER3, and P4HTM, which affects eye morphology. Future work will include functional studies and validation. Identification of genes contributing to refractive error and future understanding of their function may lead to better treatment and prevention of refractive errors, which themselves are important risk factors for various blinding conditions.
Collapse
Affiliation(s)
- Anthony M Musolf
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, USA
| | - Annechien E G Haarman
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Robert N Luben
- MRC Epidemiology, University of Cambridge School of Clinical Medicine, Cambridge, UK
- NIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK
| | - Jue-Sheng Ong
- Statistical Genetics Laboratory, Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Karina Patasova
- Department of Twin Research and Genetic Epidemiology, King's College London, London, UK
| | - Rolando Hernandez Trapero
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, UK
| | - Joseph Marsh
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, UK
| | - Ishika Jain
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, USA
| | - Riya Jain
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, USA
| | - Paul Zhiping Wang
- Institute for Biomedical Sciences, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Deyana D Lewis
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, USA
| | - Milly S Tedja
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Adriana I Iglesias
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Hengtong Li
- Data Science Unit, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Cameron S Cowan
- Institute for Molecular and Clinical Ophthalmology Basel, Basel, Switzerland
| | - Ginevra Biino
- Institute of Molecular Genetics, National Research Council of Italy, Pavia, Italy
| | - Alison P Klein
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Priya Duggal
- The Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - David A Mackey
- Centre for Ophthalmology and Visual Science, Lions Eye Institute, University of Western Australia, Perth, WA, Australia
| | - Caroline Hayward
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, UK
| | - Toomas Haller
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Andres Metspalu
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Juho Wedenoja
- Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Olavi Pärssinen
- Department of Ophthalmology, Central Hospital of Central Finland, Jyväskylä, Finland
- Gerontology Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Ching-Yu Cheng
- Centre for Quantitative Medicine, DUKE-National University of Singapore, Singapore, Singapore
- Ocular Epidemiology Research Group, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Seang-Mei Saw
- Saw Swee Hock School of Public Health, National University Health Systems, National University of Singapore, Singapore, Singapore
- Myopia Research Group, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Dwight Stambolian
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, PA, USA
| | - Pirro G Hysi
- Department of Twin Research and Genetic Epidemiology, King's College London, London, UK
| | - Anthony P Khawaja
- MRC Epidemiology, University of Cambridge School of Clinical Medicine, Cambridge, UK
- NIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK
| | - Veronique Vitart
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, UK
| | - Christopher J Hammond
- Department of Twin Research and Genetic Epidemiology, King's College London, London, UK
| | | | - Virginie J M Verhoeven
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, The Netherlands.
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - Caroline C W Klaver
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, The Netherlands.
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.
- Institute for Molecular and Clinical Ophthalmology Basel, Basel, Switzerland.
- Department of Ophthalmology, Radboud University Medical Centre, Nijmegen, The Netherlands.
| | - Joan E Bailey-Wilson
- Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Baltimore, MD, USA.
| |
Collapse
|
|
6
|
Haarman AEG, Thiadens AAHJ, van Tienhoven M, Loudon SE, de Klein JEMMA, Brosens E, Polling JR, van der Schoot V, Bouman A, Kievit AJA, Hoefsloot LH, Klaver CCW, Verhoeven VJM. Whole exome sequencing of known eye genes reveals genetic causes for high myopia. Hum Mol Genet 2022; 31:3290-3298. [PMID: 35567543 PMCID: PMC9523556 DOI: 10.1093/hmg/ddac113] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 11/13/2022] Open
Abstract
High myopia (refractive error ≤ -6 diopters (D)) is a heterogeneous condition, and without clear accompanying features it can be difficult to pinpoint a genetic cause. This observational study aimed to evaluate the utility of whole exome sequencing (WES) using an eye disorder gene panel in European patients with high myopia. Patients with high myopia were recruited by ophthalmologists and clinical geneticists. Clinical features were categorized into isolated high myopia, high myopia with other ocular involvement or with systemic involvement. WES was performed and an eye disorder gene panel of ~ 500 genes was evaluated. 113 patients with high myopia (mean (SD) refractive error - 11.8D (5.2) were included. Of these, 53% were children younger than 12 years of age (53%), 13.3% were 12-18 years, and 34% were adults (aged over 18 years). 23 out of 113 patients (20%) received a genetic diagnosis of which 11 patients displayed additional ocular or systemic involvement. Pathogenic variants were identified in retinal dystrophy genes (e.g.GUCY2D, CACNA1F), connective tissue disease genes (e.g. COL18A1, COL2A1), non-syndromic high myopia genes (ARR3), ocular development genes (e.g. PAX6) and other genes (ASPH, CNNM4). In 20% of our high myopic study population WES using an eye gene panel enabled us to diagnose the genetic cause for this disorder. Eye genes known to cause retinal dystrophy, developmental or syndromic disorders can cause high myopia without apparent clinical features of other pathology.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Jan Roelof Polling
- Department of Ophthalmology, Erasmus MC.,Department of Orthoptics, School of Applied Science Utrecht, Utrecht, Netherlands
| | | | | | | | | | - Caroline C W Klaver
- Department of Ophthalmology, Erasmus MC.,Department of Epidemiology, Erasmus MC.,Department of Ophthalmology, Radboud University Medical Center, Nijmegen, the Netherlands.,Institute of Molecular and Clinical Ophthalmology, University of Basel, Switzerland
| | | |
Collapse
|
|
7
|
González-Iglesias E, López-Vázquez A, Noval S, Nieves-Moreno M, Granados-Fernández M, Arruti N, Rosa-Pérez I, Pacio-Míguez M, Montaño VEF, Rodríguez-Solana P, del Pozo A, Santos-Simarro F, Vallespín E. Next-Generation Sequencing Screening of 43 Families with Non-Syndromic Early-Onset High Myopia: A Clinical and Genetic Study. Int J Mol Sci 2022; 23:ijms23084233. [PMID: 35457050 PMCID: PMC9031962 DOI: 10.3390/ijms23084233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/04/2022] [Indexed: 02/01/2023] Open
Abstract
Early-onset high myopia (EoHM) is a disease that causes a spherical refraction error of ≥-6 diopters before 10 years of age, with potential multiple ocular complications. In this article, we report a clinical and genetic study of 43 families with EoHM recruited in our center. A complete ophthalmological evaluation was performed, and a sample of peripheral blood was obtained from proband and family members. DNA was analyzed using a customized next-generation sequencing panel that included 419 genes related to ophthalmological disorders with a suspected genetic cause, and genes related to EoHM pathogenesis. We detected pathogenic and likely pathogenic variants in 23.9% of the families and detected variants of unknown significance in 76.1%. Of these, 5.7% were found in genes related to non-syndromic EoHM, 48.6% in genes associated with inherited retinal dystrophies that can include a syndromic phenotype, and 45.7% in genes that are not directly related to EoHM or retinal dystrophy. We found no candidate genes in 23% of the patients, which suggests that further studies are needed. We propose a systematic genetic analysis for patients with EoHM because it helps with follow-up, prognosis and genetic counseling.
Collapse
Affiliation(s)
- Eva González-Iglesias
- Section of Molecular Ophthalmology, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, La Paz University Hospital, 28046 Madrid, Spain; (E.G.-I.); (V.E.F.M.); (P.R.-S.)
| | - Ana López-Vázquez
- Department of Ophthalmology, La Paz University Hospital, 28046 Madrid, Spain; (A.L.-V.); (S.N.); (M.N.-M.); (M.G.-F.); (N.A.); (I.R.-P.)
| | - Susana Noval
- Department of Ophthalmology, La Paz University Hospital, 28046 Madrid, Spain; (A.L.-V.); (S.N.); (M.N.-M.); (M.G.-F.); (N.A.); (I.R.-P.)
| | - María Nieves-Moreno
- Department of Ophthalmology, La Paz University Hospital, 28046 Madrid, Spain; (A.L.-V.); (S.N.); (M.N.-M.); (M.G.-F.); (N.A.); (I.R.-P.)
| | - María Granados-Fernández
- Department of Ophthalmology, La Paz University Hospital, 28046 Madrid, Spain; (A.L.-V.); (S.N.); (M.N.-M.); (M.G.-F.); (N.A.); (I.R.-P.)
| | - Natalia Arruti
- Department of Ophthalmology, La Paz University Hospital, 28046 Madrid, Spain; (A.L.-V.); (S.N.); (M.N.-M.); (M.G.-F.); (N.A.); (I.R.-P.)
| | - Irene Rosa-Pérez
- Department of Ophthalmology, La Paz University Hospital, 28046 Madrid, Spain; (A.L.-V.); (S.N.); (M.N.-M.); (M.G.-F.); (N.A.); (I.R.-P.)
| | - Marta Pacio-Míguez
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (M.P.-M.); (A.d.P.); (F.S.-S.)
- Section of Neurodevelopmental Disorders, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, La Paz University Hospital, 28046 Madrid, Spain
| | - Victoria E. F. Montaño
- Section of Molecular Ophthalmology, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, La Paz University Hospital, 28046 Madrid, Spain; (E.G.-I.); (V.E.F.M.); (P.R.-S.)
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (M.P.-M.); (A.d.P.); (F.S.-S.)
| | - Patricia Rodríguez-Solana
- Section of Molecular Ophthalmology, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, La Paz University Hospital, 28046 Madrid, Spain; (E.G.-I.); (V.E.F.M.); (P.R.-S.)
| | - Angela del Pozo
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (M.P.-M.); (A.d.P.); (F.S.-S.)
- Section of Clinical Bioinformatics, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, La Paz University Hospital, 28046 Madrid, Spain
| | - Fernando Santos-Simarro
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (M.P.-M.); (A.d.P.); (F.S.-S.)
- Section of Clinical Genetics, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, La Paz University Hospital, 28046 Madrid, Spain
| | - Elena Vallespín
- Section of Molecular Ophthalmology, Medical and Molecular Genetics Institute (INGEMM) IdiPaz, La Paz University Hospital, 28046 Madrid, Spain; (E.G.-I.); (V.E.F.M.); (P.R.-S.)
- Biomedical Research Center in the Rare Diseases Network (CIBERER), Carlos II Health Institute (ISCIII), 28029 Madrid, Spain; (M.P.-M.); (A.d.P.); (F.S.-S.)
- Correspondence:
| |
Collapse
|
|
8
|
Dong S, Tian Q, Zhu T, Wang K, Lei G, Liu Y, Xiong H, Shen L, Wang M, Zhao R, Wu H, Li B, Zhang Q, Yao Y, Guo H, Xia K, Xia L, Hu Z. SLC39A5 dysfunction impairs extracellular matrix synthesis in high myopia pathogenesis. J Cell Mol Med 2021; 25:8432-8441. [PMID: 34302427 PMCID: PMC8419198 DOI: 10.1111/jcmm.16803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/13/2021] [Accepted: 07/06/2021] [Indexed: 12/23/2022] Open
Abstract
High myopia is one of the leading causes of visual impairment worldwide with high heritability. We have previously identified the genetic contribution of SLC39A5 to nonsyndromic high myopia and demonstrated that disease‐related mutations of SLC39A5 dysregulate the TGF‐β pathway. In this study, the mechanisms underlying SLC39A5 involvement in the pathogenesis of high myopia are determined. We observed the morphogenesis and migration abnormalities of the SLC39A5 knockout (KO) human embryonic kidney cells (HEK293) and found a significant injury of ECM constituents. RNA‐seq and qRT‐PCR revealed the transcription decrease in COL1A1, COL2A1, COL4A1, FN1 and LAMA1 in the KO cells. Further, we demonstrated that TGF‐β signalling, the regulator of ECM, was inhibited in SLC39A5 depletion situation, wherein the activation of receptor Smads (R‐Smads) via phosphorylation was greatly blocked. SLC39A5 re‐expression reversed the phenotype of TGF‐β signalling and ECM synthesis in the KO cells. The fact that TGF‐β signalling was zinc‐regulated and that SLC39A5 was identified as a zinc transporter urged us to check the involvement of intracellular zinc in TGF‐β signalling impairment. Finally, we determined that insufficient zinc chelation destabilized Smad proteins, which naturally inhibited TGF‐β signalling. Overall, the SLC39A5 depletion–induced zinc deficiency destabilized Smad proteins, which inhibited the TGF‐β signalling and downstream ECM synthesis, thus contributing to the pathogenesis of high myopia. This discovery provides a deep insight into myopic development.
Collapse
Affiliation(s)
- Shanshan Dong
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Qi Tian
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Tengfei Zhu
- Department of Critical Care Medicine, Shenzhen Third People's Hospital, Shenzhen, Guangdong, China
| | - Kangli Wang
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Ganting Lei
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Yanling Liu
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Haofeng Xiong
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Lu Shen
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Meng Wang
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Rongjuan Zhao
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Huidan Wu
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Bin Li
- National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiumeng Zhang
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Yujun Yao
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Hui Guo
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Kun Xia
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Molecular Precisional Medicine, Central South University, Changsha, Hunan, China
| | - Lu Xia
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Zhengmao Hu
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases, Central South University, Changsha, Hunan, China
| |
Collapse
|
|
9
|
Liu Y, Zhang JJ, Piao SY, Shen RJ, Ma Y, Xue ZQ, Zhang W, Liu J, Jin ZB, Zhuang WJ. Whole-Exome Sequencing in a Cohort of High Myopia Patients in Northwest China. Front Cell Dev Biol 2021; 9:645501. [PMID: 34222226 PMCID: PMC8250434 DOI: 10.3389/fcell.2021.645501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 05/27/2021] [Indexed: 11/22/2022] Open
Abstract
High myopia (HM) is one of the leading causes of visual impairment worldwide. In order to expand the myopia gene spectrum in the Chinese population, we investigated genetic mutations in a cohort of 27 families with HM from Northwest China by using whole-exome sequencing (WES). Genetic variations were filtered using bioinformatics tools and cosegregation analysis. A total of 201 candidate mutations were detected, and 139 were cosegregated with the disease in the families. Multistep analysis revealed four missense variants in four unrelated families, including c.904C>T (p.R302C) in CSMD1, c.860G>A (p.R287H) in PARP8, c.G848A (p.G283D) in ADAMTSL1, and c.686A>G (p.H229R) in FNDC3B. These mutations were rare or absent in the Exome Aggregation Consortium (ExAC), 1000 Genomes Project, and Genome Aggregation Database (gnomAD), indicating that they are new candidate disease-causing genes. Our findings not only expand the myopia gene spectrum but also provide reference information for further genetic study of heritable HM.
Collapse
Affiliation(s)
- Yang Liu
- School of Basic Medical Sciences, Third Clinical Medical College of Ningxia Medical University (People’s Hospital of Ningxia Hui Autonomous Region), Yinchuan, China
| | - Jin-Jin Zhang
- Clinical Medical College, Ningxia Medical University, Yinchuan, China
| | - Shun-Yu Piao
- Ningxia Eye Hospital, People’s Hospital of Ningxia Hui Autonomous Region, Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
| | - Ren-Juan Shen
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing, China
| | - Ya Ma
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing, China
| | - Zhong-Qi Xue
- Department of Ophthalmology, Affiliated Hospital of Qingdao Binhai University, Qingdao, China
| | - Wen Zhang
- Ningxia Eye Hospital, People’s Hospital of Ningxia Hui Autonomous Region, Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
| | - Juan Liu
- School of Basic Medical Sciences, Third Clinical Medical College of Ningxia Medical University (People’s Hospital of Ningxia Hui Autonomous Region), Yinchuan, China
| | - Zi-Bing Jin
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing, China
| | - Wen-Juan Zhuang
- Ningxia Eye Hospital, People’s Hospital of Ningxia Hui Autonomous Region, Third Clinical Medical College of Ningxia Medical University, Yinchuan, China
| |
Collapse
|
|
10
|
A Bibliometric and Citation Network Analysis of Myopia Genetics. Genes (Basel) 2021; 12:genes12030447. [PMID: 33801043 PMCID: PMC8003911 DOI: 10.3390/genes12030447] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND To aim of the study was describe the growth of publications on genetic myopia and understand the current research landscape through the analysis of citation networks, as well as determining the different research areas and the most cited publications. METHODS The Web of Science database was used to perform the publication search, looking for the terms "genetic*" AND "myopia" within the period between 2009 and October 2020. The CitNetExplorer and CiteSpace software were then used to conduct the publication analysis. To obtain the graphics, the VOSviewer software was used. RESULTS A total of 721 publications were found with 2999 citations generated within the network. The year 2019 was singled out as a "key year", taking into account the number of publications that emerged in that year and given that in 2019, 200 loci associated with refractive errors and myopia were found, which is considered to be great progress. The most widely cited publication was "Genome-wide meta-analyses of multiancestry cohorts identify multiple new susceptibility loci for refractive error and myopia", an article by Verhoeven et al., which was published in 2013. By using the clustering function, we were able to establish three groups that encompassed the different research areas within this field: heritability rate of myopia and its possible association with environmental factors, retinal syndromes associated with myopia and the genetic factors that control and influence axial growth of the eye. CONCLUSIONS The citation network offers a comprehensive and objective analysis of the main papers that address genetic myopia.
Collapse
|
|
11
|
Variants in FLRT3 and SLC35E2B identified using exome sequencing in seven high myopia families from Central Europe. Adv Med Sci 2021; 66:192-198. [PMID: 33711669 DOI: 10.1016/j.advms.2021.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 02/09/2021] [Accepted: 02/26/2021] [Indexed: 12/28/2022]
Abstract
PURPOSE High myopia (HM) is an eye disorder with both environmental and genetic factors involved. Many genetic factors responsible for HM were recognized worldwide, but little is known about genetic variants underlying HM in Central Europe. Thus, the aim of this study was to identify rare sequence variants involved in HM in families from Central Europe to better understand the genetic basis of HM. MATERIALS AND METHODS We assessed 17 individuals from 7 unrelated Central European families with hereditary HM using exome sequencing (ES). Segregation of selected variants in other available family members was performed using Sanger sequencing. RESULTS Detected 73 rare variants were selected for verification. We observed 2 missense variants, c.938C>T in SLC35E2B - encoding solute carrier family 35 member E2B, and c.1642G>C in FLRT3 - encoding fibronectin leucine rich transmembrane protein, segregating with HM in one family. CONCLUSIONS FLRT3 and/or SLC35E2B could represent disease candidate genes and identified sequence variants might be responsible for HM in the studied family.
Collapse
|
|
12
|
Coussa RG, Binkley EM, Wilkinson ME, Andorf JL, Tucker BA, Mullins RF, Sohn EH, Yannuzzi LA, Stone EM, Han IC. Predominance of hyperopia in autosomal dominant Best vitelliform macular dystrophy. Br J Ophthalmol 2020; 106:522-527. [DOI: 10.1136/bjophthalmol-2020-317763] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/05/2020] [Accepted: 11/15/2020] [Indexed: 12/17/2022]
Abstract
Background/AimsPatients with BEST1-associated autosomal dominant Best vitelliform macular dystrophy (AD-BVMD) have been reported to be hyperopic, but the prevalence of refractive error has not been described. This study aimed to characterise the type and degree of refractive error in a large cohort of patients with AD-BVMD compared with an age-similar group with ABCA4-associated Stargardt disease.MethodsThis was a retrospective chart review of consecutive patients with molecularly confirmed AD-BVMD and Stargardt macular dystrophy seen at a single academic centre. Demographic information, including age, gender and genotype were extracted from the chart. The best corrected visual acuity (BCVA), as well as type and degree of refractive error on manifest refraction for each eye on each visit, were recorded and compared.ResultsA total of 178 eyes from 89 patients with AD-BVMD (35 women, 54 men; mean age 36.6 years) and 306 eyes from 153 patients (94 women, 59 men, mean age 30.2 years) with Stargardt disease were included in the study. Mean BCVA was excellent for both AD-BVMD and Stargardt eyes (logMAR 0.23 vs logMAR 0.31, respectively; p=0.55). At initial refraction, 73.0% of AD-BVMD eyes (130/178) were hyperopic, with mean spherical equivalent (SE) +1.38 dioptres (median +0.88) whereas 80.7% of Stargardt eyes (247/306) were myopic, with mean SE of −1.76 dioptres (median −1.19) (p<0.001).ConclusionPatients with AD-BVMD are predominantly hyperopic, whereas those with Stargardt disease are predominantly myopic. The findings provide further evidence of a role for BEST1 in ocular growth and development.
Collapse
|
|
13
|
Dan H, Huang X, Xing Y, Shen Y. Application of targeted exome and whole-exome sequencing for Chinese families with Stargardt disease. Ann Hum Genet 2019; 84:177-184. [PMID: 31674661 DOI: 10.1111/ahg.12361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/26/2019] [Accepted: 10/04/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The aim of this study was to investigate pathogenic variants and molecular etiologies of Stargardt disease (STGD) in a cohort of Chinese families. MATERIALS AND METHODS A cohort of 12 unrelated STGD families diagnosed on the basis of clinical manifestations underwent analysis by targeted exome or whole-exome sequencing. Bioinformatics analysis, Sanger sequencing, and cosegregation analysis of available family members were used to validate sequencing data and confirm the presence of disease-causing genes. RESULTS Using targeted exome and whole-exome sequencing, we found that eight families had disease-causing variants in the ABCA4 gene, one family had only one heterozygous variant in the ABCA4 gene, and the remaining three families have not been identified with any disease-causing variants for STGD. We identified 15 variants in the ABCA4 gene; of these, five variants have not been previously described for STGD. CONCLUSION The findings in this study expand the data regarding the frequency and spectrum of variants in the ABCA4 gene, thus potentially enriching our understanding of the molecular basis of STGD. Moreover, they constitute clues for future STGD diagnosis and therapy.
Collapse
Affiliation(s)
- Handong Dan
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xin Huang
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yiqiao Xing
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yin Shen
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| |
Collapse
|