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ABSTRACT
Optic neuritis (ON) is demyelinating acute inflammatory disease which affects the optic nerve. ON is classified as a typical (demyelinating) or an atypical (idiopathic). Patients often complain having a periocular pain or a visual loss. The main factor causing the optic neuritis is still unknown. It is believed that it might be a combination of genetic and environmental factors. As the optic neuritis is an inflammation disease, the RAGE gene was selected as it is a part of the inflammation process.
Aim
to determine the relation between RAGE rs1800624 and rs1800625 genotypes of patients who have a manifestation of optic neuritis and optic neuritis with multiple sclerosis together in Lithuanian population and visual acuity recovery.
Objectives
patients with optic neuritis and healthy controls individuals were examined. Genotyping was carried out by using the instrument of real-time polymerase chain reaction called StepOnePlus (AppliedBiosystems). Statistical analysis was performed using IBM SPSS Statistics 20.0 software and free PLINK software (version 1.07).
Results
Results indicate that rs1800624 polymorphism is not statistically significant in optic neuritis manifestation (p = .392), while rs1800625 GG genotype is associated with 7.5-fold increased odds of ON development under the codominant model (OR = 7.5; 95% CI:1.796–31.313; p = .006) and with 6.9-fold increased odds under the recessive model OR = 6.862; 95% CI:1.665–28.288; p = .008); and each allele G is associated with 1.9-fold increased odds of ON development under the additive model (OR = 1.879; 95% CI:1.149–3.072; p = .012). The haplotype containing A-G alleles in rs1800624 and rs1800625 was statistically significantly associated with increased risk for ON development (χ2 = 13.23; p < .001). Both polymorphisms do not have statistically significant importance in relation to visual acuity recovery.
Conclusions
RAGE rs1800625 AA genotype decreases the risk of optic neuritis. The single nucleotide polymorphisms RAGE rs1800624 and rs1800625 do not have a statistically significant importance in relation with visual acuity recovery.
Declaration of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this article.