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Serum homocysteine, vitamin B 12 and folic acid levels in different types of glaucoma

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Author(s): Cumurcu Tongabay | Sahin Semsettin | Aydin Erdinc

Journal: BMC Ophthalmology
ISSN 1471-2415

Volume: 6;
Issue: 1;
Start page: 6;
Date: 2006;
Original page

ABSTRACT
Abstract Background This study was performed to compare levels of serum homocysteine (Hcy), vitamin B12 and folic acid in patients with primary open-angle glaucoma (POAG), pseudoexfoliative glaucoma (PEXG), normotensive glaucoma (NTG) and healthy controls. Methods Twentyfive patients with POAG, 24 with PEXG, and 18 with NTG, along with 19 control healthy subjects were included this prospective study. Levels of serum Hcy were measured using immunoassay, and those of serum vitamin B12 and folic acid were measured using competitive chemiluminescent enzyme immunoassay. Results The mean Hcy concentration in the PEXG group was significantly higher (P < 0.001) as compared to the other groups. There were no significant differences with respect to the mean Hcy concentrations among other groups (P > 0.05). There were no statistical differences in serum vitamin B12 levels among POAG, PEXG, NTG and control subjects (P > 0.05). The mean serum folic acid level was significantly lower in the subjects with PEXG (P < 0.009). However, the mean folic acid concentrations among the other groups did not differ significantly (P > 0.05). Conclusion Elevated levels of Hcy in PEXG may explain the role of endothelial dysfunction among patients with PEXG.
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