Genetic correlation between Prothrombin G20210A polymorphism and retinal vein occlusion risk

Area of Science:

• Genetics
• Ophthalmology
• Medical Research

Background:

• Retinal vein occlusion (RVO) is a significant cause of vision loss.
• The G20210A polymorphism in the Prothrombin gene has been investigated for its potential association with thrombotic events, including RVO.
• Previous studies have yielded inconsistent results regarding this association.

Purpose of the Study:

• To conduct an updated meta-analysis to quantitatively assess the association between Prothrombin gene G20210A polymorphism and RVO risk.
• To resolve inconsistencies in existing literature through rigorous statistical analysis.

Main Methods:

• A comprehensive literature search was performed across PubMed, Embase, and Web of Science databases.
• Twenty-four case-control studies were included in the meta-analysis.
• Statistical analyses included heterogeneity testing, association testing, Begg's and Egger's tests for bias, and sensitivity analyses. Subgroup analyses were conducted based on ethnicity, control source, and RVO type.

Main Results:

• The overall meta-analysis did not reveal a significant association between the Prothrombin gene G20210A polymorphism and RVO risk across various genetic models (allele, carrier, genotype).
• Subgroup analyses also showed no significant associations.
• Tests for heterogeneity and publication bias indicated reliable and stable results.

Conclusions:

• The Prothrombin gene G20210A polymorphism is likely not associated with an increased risk of retinal vein occlusion.
• This meta-analysis provides robust evidence suggesting no genetic link between this specific Prothrombin gene variant and RVO.