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1 General aspects (0)   1.1 Epidemiology (6)   1.2 Population genetics (4)   1.3 Pathogenesis (8)   1.4 Quality of life (5)   1.5 Glaucomas as cause of blindness (4)   1.6 Prevention and screening (9) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (3)   2.2 Cornea (19)   2.3 Sclera (2)   2.4 Anterior chamber angle (6)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (10)     2.5.2 Schlemms canal (2)     2.5.3 Scleral outlet channels (1)   2.6 Aqueous humor dynamics (1)     2.6.1 Production (1)     2.6.2 Outflow (1)       2.6.2.1 Trabecular meshwork (3)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (6)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (0)   2.9 Ciliary body (2)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (4)   2.13 Retina and retinal nerve fibre layer (23)   2.14 Optic disc (20)   2.15 Optic nerve (2)   2.16 Chiasma and retrochiasmal central nervous system (4)   2.17 Stem cells (4)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (1)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (2)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (29)   3.5 Molecular biology incl. 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associated with intraocular tumors (1)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (0)       9.4.10 Glaucomas associated with hemorrhage (3)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (2)       9.4.11.2 Glaucomas in aphakia and pseudophakia (2)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (5)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (6)     9.4.15 Glaucoma in relation to systemic disease (24)     9.4.20 Other (0) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (5) 11 Medical treatment (0)   11.1 General management, indication (11)   11.2 Cholinergic drugs (0)   11.3 Adrenergic drugs (0)     11.3.1 Epinephrine (0)     11.3.2 Thymoxamine, dapiprazole (0)     11.3.3 Apraclonidine, brimonidine (2)     11.3.4 Betablocker (4)     11.3.5 Other (0)   11.4 Prostaglandins 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Miscellaneous (19)

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Abstract #26094 Published in IGR 12-2

Aqueous Humor and Plasma Levels of Vascular Endothelial Growth Factor and Nitric Oxide in Patients With Pseudoexfoliation Syndrome and Pseudoexfoliation Glaucoma

Borazan M; Karalezli A; Kucukerdonmez C; Bayraktar N; Kulaksizoglu S; Akman A; Akova YA
Journal of Glaucoma 2010; 19: 207-211

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PURPOSE: To investigate levels of vascular endothelial growth factor (VEGF) and nitric oxide (NO) in the aqueous humor and plasma of patients with pseudoexfoliation syndrome (PXS) and pseudoexfoliation glaucoma (PXG), compared with controls. METHODS: This prospective study involved 37 patients with PXS, 15 with PXG, and 32 control subjects in whom cataract surgery was indicated. Aqueous humor and plasma VEGF and NO levels were measured with enzyme-linked immunosorbent assay and chemiluminescence methods, respectively. RESULTS: Aqueous humor and plasma VEGF concentrations were higher in patients with PXS and PXG than in controls (P<0.001). Aqueous humor NO concentrations were higher in patients with PXS and PXG than in controls (P<0.05 and P=0.001, respectively).Plasma NO concentrations did not differ between the 3 groups. Aqueous humor and plasma VEGF and NO levels were not significantly different in patients with PXS versus PXG. VEGF and NO levels showed no significant correlation among the 3 groups (P>0.05). CONCLUSIONS: Elevated aqueous humor VEGF and NO levels and plasma VEGF concentrations in eyes with PXS and PXG can be explained by the ischemic nature of these disorders. The lack of correlation between VEGF and NO levels may indicate impaired downregulation, which may have a role in the progression to PXG.

Department of Ophthalmology, Baskent University School of Medicine, Ankara, Turkey.

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Classification:

9.4.4.1 Exfoliation syndrome (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.4 Glaucomas associated with disorders of the lens)
2.6.3 Compostion (Part of: 2 Anatomical structures in glaucoma > 2.6 Aqueous humor dynamics)

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