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Association of Il-10 Gene Promoter Polymorphisms With Susceptibility to Pseudoexfoliation Syndrome, Pseudoexfoliative and Primary Open-Angle Glaucoma Publisher Pubmed



Fakhraie G1 ; Parvini F2 ; Ghanavi J3 ; Saif S3 ; Farnia P3, 4
Authors
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Authors Affiliations
  1. 1. Department of Ophthalmology, Glaucoma Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Biology, Faculty of Basic Sciences, Semnan University, Semnan, Iran
  3. 3. Mycobacteriology Research Centre (MRC), National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Source: BMC Medical Genetics Published:2020


Abstract

Background: The involvement of cytokines in pathogenesis of pseudoexfoliation syndrome and glaucoma has been demonstrated in several studies. The aim of the present study was to explore the association between three promoter polymorphisms -592C/A (rs1800872), - 819C/T (rs1800871) and -1082A/G (rs1800896) of interleukin 10 (IL-10) gene with susceptibility to pseudoexfoliation syndrome (PEX), pseudoexfoliative glaucoma (PEXG), and primary open-angle glaucoma (POAG). Methods: In this study, 114 PEX, 118 PEXG, 114 POAG patients and 126 healthy individuals from Iranian population were participated. Detailed ophthalmic examinations by an ophthalmologist including slit-lamp bio-microscopic examination, dilated examination of the lens, gonioscopy, and funduscopy were carried out on patients and controls. Genomic DNA was extracted from the blood samples and ARMS-PCR was performed to detect promoter polymorphisms of IL-10. Results: In all three SNPs studied, there was a significant difference in the genotype distribution between patients and control subjects. Results revealed that the AA genotype of IL-10 -592C/A SNP is associated with PEX. However, TT genotype of -819C/T and AA genotype of -1082A/G SNP are significantly associated with susceptibility to either PEX or PEXG and POAG disorders. Furthermore, the ACC haplotype containing the IL-10 -1082A allele was associated with PEX (P = 0.02, OR = 5.76, 95% CI = 5.17-24.49), PEXG (P = 0.006, OR = 7.54, 95% CI = 6.62-30.76) and POAG (P = 0.003, OR = 8.11, 95% CI = 7.13-33.15). Conclusions: Our results demonstrated that IL-10 gene promoter polymorphisms are associated with susceptibility to PEX, PEXG and POAG in Iranian population. Considering the fact that IL-10 polymorphisms are associated with various IL-10 expressions, further research is needed to explain its involvement in these disorders and the formation of extracellular fibrillar amyloid deposits in PEX and PEXG. © 2020 The Author(s).
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