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Homocysteine levels in patients with primary open-angle glaucoma

Homocysteine levels in patients with primary open-angle glaucoma

Curr Eye Res. 2012 Aug;37(8):712-8. doi: 10.3109/02713683.2012.669512. Epub 2012 Mar 29.

Homocysteine and hydroxyproline levels in patients with primary open-angle glaucoma.

Abstract

AIM:

To assess the levels of homocysteine (Hcy) and hydroxyproline (Hyp) in aqueous humor and plasma of human eyes with primary open-angle glaucoma (POAG) and to correlate their concentrations with the severity of glaucoma.

METHODS:

Fifty patients with POAG and 35 patients with senile cataract (control group) were enrolled in the study prospectively. Aqueous humor samples were obtained by paracentesis from glaucoma and cataract patients who were undergoing elective surgery. Aqueous humor and corresponding plasma samples were analyzed for Hcy and Hyp concentrations by high-performance liquid chromatography and spectrometry, respectively.

RESULTS:

Hcy and Hyp levels were significantly higher in aqueous humor of POAG patients with respect to the comparative group of cataract patients (p < 0.001). No significant difference in the levels of Hcy and Hyp in plasma of POAG and cataract patients. A positive correlation was found between Hcy and Hyp in aqueous humor of POAG patients (p < 0.001). No significant correlation was found between either Hcy or Hyp levels and the severity of visual field loss.

CONCLUSION:

Increased levels of aqueous humor Hcy and Hyp may be associated with POAG. In addition, Hcy and Hyp may be useful protein levels in aqueous humor of POAG patients as a consequence of glaucomatous damage.

PMID:22458818

http://www.ncbi.nlm.nih.gov/pubmed/22458818

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