Published in:
01-05-2011 | Clinical Investigation
Vitreous inflammatory factors in macular edema with central retinal vein occlusion
Authors:
Hidetaka Noma, Hideharu Funatsu, Seiyo Harino, Tatsuya Mimura, Shuichiro Eguchi, Sadao Hori
Published in:
Japanese Journal of Ophthalmology
|
Issue 3/2011
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Abstract
Purpose
To investigate the correlation of soluble intercellular adhesion molecule 1 (sICAM-1) and vascular endothelial growth factor (VEGF) with macular edema in patients with central retinal vein occlusion (CRVO).
Methods
Twenty-nine patients who had CRVO with macular edema and 16 patients with non-ischemic ocular diseases (control group) participated. Retinal ischemia was evaluated by measuring the area of capillary non-perfusion with fluorescein angiography and the public domain Scion Image program. Macular edema was examined by optical coherence tomography. Vitreous samples were obtained during pars plana vitrectomy. VEGF and sICAM-1 levels in vitreous fluid and plasma were determined by enzyme-linked immunosorbent assay.
Results
The median vitreous levels of VEGF and sICAM-1 were significantly higher in the CRVO patients than in the control group [366 vs. 15.6 pg/ml (P < 0.001) and 20.5 vs. 5.0 ng/ml (P < 0.001), respectively]. Vitreous levels of both VEGF and sICAM-1 were also significantly higher in the CRVO patients who had retinal ischemia than in those without ischemia (P < 0.001 and P = 0.011, respectively). Vitreous levels of VEGF and sICAM-1 were also significantly correlated with the severity of macular edema (P = 0.004 and P = 0.012, respectively).
Conclusions
VEGF and sICAM-1 may both increase vascular permeability in CRVO patients with macular edema, with sICAM-1 acting together with and/or via VEGF.