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  • Title: Methylenetetrahydrofolatereductase (MTHFR) 677C>T polymorphism and open angle glaucoma.
    Author: Mossbock G, Weger M, Faschinger C, Steinbrugger I, Temmel W, Schmut O, Renner W, Hufnagel C, Stanger O.
    Journal: Mol Vis; 2006 Apr 17; 12():356-9. PubMed ID: 16636653.
    Abstract:
    PURPOSE: Increased plasma homocysteine levels have been found in patients with primary open angle glaucoma (POAG) and glaucoma secondary to pseudoexfoliation syndrome (PEXG). A common polymorphism of the methylenetetrahydrofolatereductase (MTHFR 677C>T) leads to moderately elevated plasma homocysteine levels particularly under conditions of impaired folate status. It was the aim of this study to investigate a hypothesized association between this polymorphism and the presence of either POAG or PEXG. METHODS: The present retrospective case-control study included a total of 553 participants comprising 204 patients with POAG, 138 patients with PEXG, and 211 control subjects. Genotyping for the MTHFR 677C>T polymorphism was performed by polymerase chain reaction (PCR). RESULTS: No significant difference in the genotype distribution of the MTHFR 677C>T polymorphism was found between control subjects and patients with POAG or PEXG. The prevalence of the MTHFR 677TT genotype was 6.9% in patients with POAG, 11.6% in patients with PEXG, and 9.5% in control subjects. CONCLUSIONS: The present data suggest that the MTHFR 677C>T polymorphism itself is not a major genetic risk factor for POAG and PEXG in a central European population.
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