Evaluation of corpus geniculatum laterale and vitreous fluid by magnetic resonance spectroscopy in patients with glaucoma; a preliminary study
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Date
2012
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Nature Publishing Group
Access Rights
info:eu-repo/semantics/openAccess
Abstract
Purpose To determine whether metabolite changes at cellular level occur in vitreous and lateral geniculate body (LGB) in patients with glaucoma by magnetic resonance spectroscopy (MRS). Methods A total of 29 eyes of 29 patients with glaucoma, no existing ocular pathology and systemic disease (group 1), and 13 eyes of 13 healthy individuals whose routine ophthalmological examinations were normal (group 2) were included in the study. Single-voxel MRS examination was performed by placing region of interest in vitreous and LGB. Glutamate-glutamine (Glx)/creatin (Cr) ratios and lactate peaks in the vitreous, and the Glx/Cr, N-acetyl aspartate (NAA)/Cr, choline (Cho)/Cr ratios in the ipsilateral area of LGB were evaluated. Results A statistically significant difference was found between the two groups for the Glx/Cr ratio in both the vitreous and LGB (P = 0.0001). There was no statistically significant difference between the two groups for the NAA/Cr, and Cho/Cr ratios in the LGB (P = 0.108). A lactate peak was established in the vitreous of 11 glaucoma patients. Conclusion Determining increased Glx/Cr ratios in both the vitreous and LGB of glaucoma patients, supports the theory of apoptosis in the etiopathogenesis of glaucoma. The MRS method, which can measure biochemical structures and metabolites of tissues, and also shows on a single spectrum, may be a new and non-invasive method for confirming the diagnosis of glaucoma and the role of apoptosis in the etiopathogenesis of glaucoma. Eye (2012) 26, 1044-1051; doi:10.1038/eye.2012.84; published online 25 May 2012
Description
Keywords
glaucoma, glutamate, MR spectroscopy, apoptosis
Journal or Series
Eye
WoS Q Value
Q2
Scopus Q Value
Q1
Volume
26
Issue
8
