The Association Between the Transforming Growth Factor Beta-1 -509C>T Gene Polymorphism and Primary Open Angle Glaucoma in North Eastern Iran.
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ABSTRACT: Background:Glaucoma is a common cause of irreversible blindness. Transforming growth factor beta-1(TGF-?1) is the main isoform of TGF-? superfamily in the eye. Overexpression of TGF-?1 is shown to be related with the glaucoma. Studies have shown that the presence of mutant T allele of TGF-?1 -509C>T polymorphism (rs1800469) is associated with increased gene expression. So, in present study, association of the TGF-?1-509C>T gene polymorphism and primary open angle glaucoma (POAG) in patients from north east of Iran was investigated. Methods:A case-control study was conducted on 112 POAG patients and 112 control participants. TGF-?1- 509C>T genotyping was done by PCR-restriction fragment length polymorphism (PCR-RFLP) method using Bsu36I restriction enzyme. Moreover, cup to disk ratio(CDR), intraocular pressure (IOP) and visual acuity (VA) were measured. The obtained results were statistically analyzed. Results:The highest frequency of genotype in the control group was related to CC genotype (44.6%), but the heterozygous CT genotype (45.6%) was observed as the highest frequency of genotypes in patient group (P value: 0.022, OR for TT genotype: 2.54 CI95% for OR: 1.22, 5.27). Also, the frequency of the T mutant allele showed a significant difference between case and control groups (P value: 0.005, OR: 1.73 CI95% for OR: 1.18, 2.53). Conclusion:In conclusion, a significant association was seen between TGF-?1 -509C>T gene polymorphism and POAG disease and inheritance of mutant T allele is considered to be a risk factor for glaucoma in patients living in North Eastern part of Iran.
SUBMITTER: Derakhshan A
PROVIDER: S-EPMC6374057 | biostudies-literature | 2019 Jan
REPOSITORIES: biostudies-literature
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