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Lu Q, Du Y, Zhang Y, Chen Y, Li H, He W, Tang Y, Zhao Z, Zhang Y, Wu J, Zhu X, Lu Y. A Genome-Wide Association Study for Susceptibility to Axial Length in Highly Myopic Eyes. PHENOMICS (CHAM, SWITZERLAND) 2023; 3:255-267. [PMID: 37325711 PMCID: PMC10260730 DOI: 10.1007/s43657-022-00082-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 10/16/2022] [Accepted: 10/19/2022] [Indexed: 06/17/2023]
Abstract
High myopia has long been highly prevalent worldwide with a largely yet unexplained genetic contribution. To identify novel susceptibility genes for axial length (AL) in highly myopic eyes, a genome-wide association study (GWAS) was performed using the genomic dataset of 350 deep whole-genome sequencing data from highly myopic patients. Top single nucleotide polymorphisms (SNPs) were functionally annotated. Immunofluorescence staining, quantitative polymerase chain reaction, and western blot were performed using neural retina of form-deprived myopic mice. Enrichment analyses were further performed. We identified the four top SNPs and found that ADAM Metallopeptidase With Thrombospondin Type 1 Motif 16 (ADAMTS16) and Phosphatidylinositol Glycan Anchor Biosynthesis Class Z (PIGZ) had the potential of clinical significance. Animal experiments confirmed that PIGZ expression could be observed and showed higher expression level in form-deprived mice, especially in the ganglion cell layer. The messenger RNA (mRNA) levels of both ADAMTS16 and PIGZ were significantly higher in the neural retina of form-deprived eyes (p = 0.005 and 0.007 respectively), and both proteins showed significantly upregulated expression in the neural retina of deprived eyes (p = 0.004 and 0.042, respectively). Enrichment analysis revealed a significant role of cellular adhesion and signal transduction in AL, and also several AL-related pathways including circadian entrainment and inflammatory mediator regulation of transient receptor potential channels were proposed. In conclusion, the current study identified four novel SNPs associated with AL in highly myopic eyes and confirmed that the expression of ADAMTS16 and PIGZ was significantly upregulated in neural retina of deprived eyes. Enrichment analyses provided novel insight into the etiology of high myopia and opened avenues for future research interest. Supplementary Information The online version contains supplementary material available at 10.1007/s43657-022-00082-x.
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Affiliation(s)
- Qiang Lu
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Yu Du
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Ye Zhang
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Yuxi Chen
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Hao Li
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Wenwen He
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Yating Tang
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Zhennan Zhao
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Yinglei Zhang
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Jihong Wu
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
| | - Xiangjia Zhu
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
- State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200032 China
| | - Yi Lu
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Road, Shanghai, 200031 China
- Eye Institute, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, 200031 China
- Key Laboratory of Myopia, Ministry of Health, Shanghai, 200031 China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, 200031 China
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Pujari A, Modaboyina S, Agarwal D, Saluja G, Thangavel R, Rakheja V, Saxena R, Sharma N, Titiyal JS, Kumar A. Myopia in India. Clin Ophthalmol 2022; 16:163-176. [PMID: 35082484 PMCID: PMC8786354 DOI: 10.2147/opth.s349393] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/07/2022] [Indexed: 11/24/2022] Open
Abstract
India is a culturally and geographically diverse nation. Its vast demographic nature does not allow a single definition for any of the given medical conditions in its territory. One important clinical condition which has created an uproar in the rest of the world is myopia. Its cause, prevalence, etiopathogenesis and other factors are being explored constantly; however, data with respect to Indian subcontinent are genuinely missing. Hence, in this review, we enumerate the country’s myopia journey from last 4 decades. The epidemiology, genetics, ocular/systemic association, quality of life, imaging, and management in myopia with necessary future directives are discussed to augment the overall management in future.
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Affiliation(s)
- Amar Pujari
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
- Correspondence: Amar Pujari, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, Room no. 212, RPC-1, AIIMS, New Delhi, India, Email
| | - Sujeeth Modaboyina
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Divya Agarwal
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Gunjan Saluja
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Rajeswari Thangavel
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Vaishali Rakheja
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Rohit Saxena
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Namrata Sharma
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Jeewan S Titiyal
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Atul Kumar
- Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
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Rasool S, Dar R, Bhat AA, Ayub SG, Rehman MU, Rashid S, Jan T, Andrabi KI. A novel G26A variation in 5' half of TGIF1 gene associates with high myopia in ethnic Kashmiri population from India. Taiwan J Ophthalmol 2019; 10:294-297. [PMID: 33437604 PMCID: PMC7787093 DOI: 10.4103/tjo.tjo_16_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 06/15/2019] [Indexed: 11/11/2022] Open
Abstract
This study aims to look at novel variations in TGIF1 gene and explores their potential association with high myopia in an ethnic population from Kashmir (India). Genomic DNA was genotyped for polymorphic variations, and allele frequencies were tested for the Hardy–Weinberg disequilibrium in 240 ethnic Kashmiri cases with high myopia with a spherical equivalent of >−6 diopters (D) and compared with emmetropic controls with spherical equivalent within −0.5D in one or both eyes represented by a sample size of 228. In this study, we found a novel sequence variation G26A (GAT to AAT) in 5′ half of TGIF1 gene (p. aspartic acid >asparagine) at a frequency of 62% (148/240, P ≤ 0.0001). Variation appears to associate with high myopia significantly (P ≤ 0.001) as it happens to be present only in high myopia affected individuals. Further, it shows statistical significance for its association with gender and the degree of myopia (P ≤ 0.05). In addition, in silico predictions show that variation likely has an impact on the structure and functional properties of the protein. The assessment of the I-TASSER protein structure showed higher energy for a wild-type protein (−5820.186 kJ/mol) as compared to mutant protein (−6595.593 kJ/mol).
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Affiliation(s)
- Shabhat Rasool
- Department of Biotechnology, University of Kashmir, Srinagar, Jammu and Kashmir, India.,Department of Biochemistry, Government Medical College, Srinagar, Jammu and Kashmir, India
| | - Rubiya Dar
- Department of Biotechnology, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Arif Akbar Bhat
- Department of Biochemistry, Government Medical College, Srinagar, Jammu and Kashmir, India
| | - Shiekh Gazalla Ayub
- Department of Biotechnology, University of Kashmir, Srinagar, Jammu and Kashmir, India.,Department of Biochemistry, Government Medical College, Srinagar, Jammu and Kashmir, India
| | - Muneeb U Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sabia Rashid
- Department of Ophthalmology, Government Medical College, Srinagar, Jammu and Kashmir, India
| | - Tariq Jan
- Department of Statistics, University of Kashmir, Srinagar, Jammu and Kashmir, India
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Tedja MS, Haarman AEG, Meester-Smoor MA, Kaprio J, Mackey DA, Guggenheim JA, Hammond CJ, Verhoeven VJM, Klaver CCW. IMI - Myopia Genetics Report. Invest Ophthalmol Vis Sci 2019; 60:M89-M105. [PMID: 30817828 PMCID: PMC6892384 DOI: 10.1167/iovs.18-25965] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 01/09/2019] [Indexed: 02/07/2023] Open
Abstract
The knowledge on the genetic background of refractive error and myopia has expanded dramatically in the past few years. This white paper aims to provide a concise summary of current genetic findings and defines the direction where development is needed. We performed an extensive literature search and conducted informal discussions with key stakeholders. Specific topics reviewed included common refractive error, any and high myopia, and myopia related to syndromes. To date, almost 200 genetic loci have been identified for refractive error and myopia, and risk variants mostly carry low risk but are highly prevalent in the general population. Several genes for secondary syndromic myopia overlap with those for common myopia. Polygenic risk scores show overrepresentation of high myopia in the higher deciles of risk. Annotated genes have a wide variety of functions, and all retinal layers appear to be sites of expression. The current genetic findings offer a world of new molecules involved in myopiagenesis. As the missing heritability is still large, further genetic advances are needed. This Committee recommends expanding large-scale, in-depth genetic studies using complementary big data analytics, consideration of gene-environment effects by thorough measurement of environmental exposures, and focus on subgroups with extreme phenotypes and high familial occurrence. Functional characterization of associated variants is simultaneously needed to bridge the knowledge gap between sequence variance and consequence for eye growth.
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Affiliation(s)
- Milly S. Tedja
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, the Netherlands
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Annechien E. G. Haarman
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, the Netherlands
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Magda A. Meester-Smoor
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, the Netherlands
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Jaakko Kaprio
- Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - David A. Mackey
- Centre for Eye Research Australia, Ophthalmology, Department of Surgery, University of Melbourne, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Department of Ophthalmology, Menzies Institute of Medical Research, University of Tasmania, Hobart, Tasmania, Australia
- Centre for Ophthalmology and Visual Science, Lions Eye Institute, University of Western Australia, Perth, Western Australia, Australia
| | - Jeremy A. Guggenheim
- School of Optometry and Vision Sciences, Cardiff University, Cardiff, United Kingdom
| | - Christopher J. Hammond
- Section of Academic Ophthalmology, School of Life Course Sciences, King's College London, London, United Kingdom
| | - 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
- Department of Ophthalmology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - for the CREAM Consortium
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, the Netherlands
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
- Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Centre for Eye Research Australia, Ophthalmology, Department of Surgery, University of Melbourne, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
- Department of Ophthalmology, Menzies Institute of Medical Research, University of Tasmania, Hobart, Tasmania, Australia
- Centre for Ophthalmology and Visual Science, Lions Eye Institute, University of Western Australia, Perth, Western Australia, Australia
- School of Optometry and Vision Sciences, Cardiff University, Cardiff, United Kingdom
- Section of Academic Ophthalmology, School of Life Course Sciences, King's College London, London, United Kingdom
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
- Department of Ophthalmology, Radboud University Medical Center, Nijmegen, the Netherlands
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Zhou L, Li T, Xing YQ, Li Y, Wu QS, Zhang MJ. Novel TRPM1 mutations in two Chinese families with early-onset high myopia, with or without complete congenital stationary night blindness. Int J Ophthalmol 2016; 9:1396-1402. [PMID: 27803854 DOI: 10.18240/ijo.2016.10.05] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 05/25/2015] [Indexed: 12/29/2022] Open
Abstract
AIM To investigate the relationship between high myopia [with or without complete congenital stationary night blindness (CSNB1)] and TRPM1 and NYX. METHODS Two unrelated families with early-onset high myopia (eoHM) and 96 normal controls were recruited. Sanger sequencing or clone sequencing were used for mutation screening. Further analyses of the available family members and the 96 normal controls were subsequently conducted to obtain additional evidence of the pathogenicity of these variants. The initial diagnosis of the probands was eoHM. We performed a further comprehensive examination of the available family members after mutations were detected in TRPM1 or NYX. RESULTS Two novel compound heterozygous mutations in TRPM1 were detected in the recruited families. The proband in family A with eoHM carried a c.2594C>T missense mutation in exon 19 and a c.669+3_669+6delAAGT splicing mutation, which was co-segregated with CSNB1 in this family. A patient in family B with a compound heterozygous missense mutation (c.3262G>A and c.3250T>C) was detected. No mutations were found in NYX. These two identified compound heterozygous mutations were not found in the 96 normal controls. After further examination of the family members, the patients in family A could be diagnosed as eoHM with CSNB1. However due to the limited clinic data, the patient in family B cloud not clearly diagnosed as CSNB1. CONCLUSION This study has expanded the mutation spectrum of TRPM1 for CSNB1 and additional studies are needed to elucidate the association between isolated high myopia and TRPM1 and NYX.
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Affiliation(s)
- Lin Zhou
- Department of Ophthalmology, the Central Hospital of Enshi Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi 445000, Hubei Province, China
| | - Tuo Li
- Department of Ophthalmology, the Central Hospital of Enshi Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi 445000, Hubei Province, China
| | - Yi-Qiao Xing
- Department of Ophthalmology, Remin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Yin Li
- Department of Ophthalmology, the Central Hospital of Enshi Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi 445000, Hubei Province, China
| | - Qing-Song Wu
- Department of Ophthalmology, the Central Hospital of Enshi Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi 445000, Hubei Province, China
| | - Mao-Ju Zhang
- Department of Ophthalmology, the Central Hospital of Enshi Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi 445000, Hubei Province, China
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Jin GM, Zhao XJ, Chen AM, Chen YX, Li Q. Association of COL1A1 polymorphism with high myopia: a Meta-analysis. Int J Ophthalmol 2016; 9:604-9. [PMID: 27162737 DOI: 10.18240/ijo.2016.04.22] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 07/20/2015] [Indexed: 02/02/2023] Open
Abstract
AIM To investigate the association between collagen type I alpha 1 (COL1A1) gene and high myopia. METHODS In this Meta-analysis, we examined 5 published case-control studies that involved 1942 high myopia cases and 2929 healthy controls to assess the association between the COL1A1 rs2075555 polymorphism and high myopia risk. We calculated the pooled odds ratios (ORs) of COL1A1 rs2075555 polymorphism in high myopia cases vs healthy controls to evaluate the strength of the association. RESULTS Overall, there was no significant difference both in the genotype and allele distributions of COL1A1 rs2075555 polymorphism between high myopia cases and healthy controls: CC vs AA OR=1.10, 95% confidence interval (CI)=0.76-1.58; AC vs AA OR=0.98, 95%CI 0.80-1.20; CC/AC vs AA/OR=1.01, 95%CI 0.84-1.22; CC vs AC/AA OR=1.06, 95%CI=0.93-1.20; C vs A OR=1.06, 95%CI 0.91-1.23). In addition, in the stratified analyses by ethnicity, no significant associations were found in any genetic model both in European and Asia cohorts. CONCLUSION Our results indicate that the COL1A1 rs2075555 polymorphism may not affect susceptibility to high myopia.
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Affiliation(s)
- Guang-Ming Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, Guangdong Province, China
| | - Xiao-Jing Zhao
- Department of Ophthalmology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong Province, China
| | - Ai-Ming Chen
- Department of Pharmacy, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong Province, China
| | - Yong-Xing Chen
- Department of Otorhinolaryngology, Jiangmen Central Hospital, Jiangmen 529030, Guangdong Province, China
| | - Qin Li
- Department of Ophthalmology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, Guangdong Province, China
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Liang Y, Song Y, Zhang F, Sun M, Wang N. Effect of a Single Nucleotide Polymorphism in the LAMA1 Promoter Region on Transcriptional Activity: Implication for Pathological Myopia. Curr Eye Res 2016; 41:1379-1386. [PMID: 26862816 DOI: 10.3109/02713683.2015.1118129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yanchuang Liang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing, China
- Civil Aviation Medical Center, Civil Aviation Administration of China, Beijing, China
| | - Yanzheng Song
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing, China
| | - Fengju Zhang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing, China
| | - Mingshen Sun
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing, China
| | - Ningli Wang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing, China
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Sharmila F, Abinayapriya, Ramprabhu K, Kumaramanickavel G, R R Sudhir, Sripriya S. Genetic analysis of axial length genes in high grade myopia from Indian population. Meta Gene 2014; 2:164-75. [PMID: 25606400 PMCID: PMC4287827 DOI: 10.1016/j.mgene.2014.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 01/09/2014] [Accepted: 01/09/2014] [Indexed: 11/29/2022] Open
Abstract
Purpose To study the putative association of Membrane frizzled related protein (MFRP) and Visual system homeobox protein (VSX2) gene variants with axial length (AL) in myopia. Method A total of 189 samples with (N = 98) and without (N = 91) myopia were genotyped for the MRFP and VSX2 variations in ABI Prism 3100 AVANT genetic analyzer. Genotype/haplotype analysis was performed using PLINK, Haploview and THESIAS softwares. Results Fifteen variations were observed in the MFRP gene of which, rs36015759 (c.492C > T, T164T) in exon 5 was distributed at a high frequency in the controls and significantly associated with a low risk for myopia (P = 4.10 ∗ e− 07 OR < 1.0). An increased frequency for the coding haplotype block [CGTCGG] harboring rs36015759 was observed in controls (31%) than cases (8%) that also correlated with a decreased mean AL (− 1.35085; P = 0.000444) by THESIAS analysis. The ‘T’ allele of rs36015759 was predicted to abolish the binding site for splicing enhancer (SRp40) by FASTSNP analysis. Conclusion Myopia is a complex disorder influenced by genetic and environmental factors. Our work shows evidence of association of a specific MFRP haplotype which was more prevalent in controls with decreased AL. However, replication and functional studies are warranted to confirm these findings.
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Affiliation(s)
- Ferdinamarie Sharmila
- SN ONGC, Department of Genetics and Molecular Biology, Vision Research Foundation, India ; Birla Institute of Technology & Science (BITS), Pilani, 333 031 Rajasthan, India
| | - Abinayapriya
- Medical Research Foundation, Sankara Nethralaya, Chennai, India
| | - Karthikeyan Ramprabhu
- SN ONGC, Department of Genetics and Molecular Biology, Vision Research Foundation, India
| | | | - R R Sudhir
- Preventive Ophthalmology Department, Sankara Nethralaya, Chennai, India
| | - Sarangapani Sripriya
- SN ONGC, Department of Genetics and Molecular Biology, Vision Research Foundation, India
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