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Graefe's Archive for Clinical and Experimental Ophthalmology

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01-03-2006 | Clinical Investigation

Intravitreal levels of vascular endothelial growth factor and interleukin-6 are correlated with macular edema in branch retinal vein occlusion

Authors: Hidetaka Noma, Atsushi Minamoto, Hideharu Funatsu, Hidetoshi Tsukamoto, Kensuke Nakano, Hidetoshi Yamashita, Hiromu K. Mishima

Published in: Graefe's Archive for Clinical and Experimental Ophthalmology | Issue 3/2006

Abstract

Background

To investigate whether vascular endothelial growth factor (VEGF) or interleukin-6 (IL-6) contributes to the pathogenesis of macular edema in eyes with branch retinal vein occlusion (BRVO), the correlations between these factors were investigated.

Methods

We studied 25 patients suffering from macular edema with BRVO and 14 patients with nonischemic ocular disease (control group). The degree of retinal ischemia was evaluated in terms of the area of capillary nonperfusion using Scion Images, and the severity of macular edema was examined using optical coherence tomography. Vitreous fluid samples were obtained at the time of vitreoretinal surgery, and VEGF and IL-6 levels in the vitreous fluid and plasma were determined by means of enzyme-linked immunosorbent assays.

Results

Vitreous fluid levels of VEGF and IL-6 were significantly elevated in patients with BRVO compared with control patients (P=0.0011 and P<0.0001, respectively). Also, the vitreous level of VEGF was significantly correlated with that of IL-6 (P=0.0012), and vitreous levels of VEGF and IL-6 were correlated with the size of the BRVO nonperfusion area (P<0.0001 and P=0.0033, respectively). Furthermore, vitreous levels of VEGF and IL-6 were correlated with the severity of macular edema (P=0.0008 and P=0.0191, respectively) and the severity of macular edema of BRVO was significantly correlated with the size of the BRVO nonperfusion area (P=0.0044).

Conclusions

The levels of VEGF and IL-6 are increased in patients with macular edema with BRVO and are significantly correlated with the size of the nonperfusion area and the severity of macular edema. Therefore, they may play a role in macular edema with BRVO.

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Title: Intravitreal levels of vascular endothelial growth factor and interleukin-6 are correlated with macular edema in branch retinal vein occlusion
Authors: Hidetaka Noma
Atsushi Minamoto
Hideharu Funatsu
Hidetoshi Tsukamoto
Kensuke Nakano
Hidetoshi Yamashita
Hiromu K. Mishima
Publication date: 01-03-2006
Publisher: Springer-Verlag
Published in: Graefe's Archive for Clinical and Experimental Ophthalmology / Issue 3/2006
Print ISSN: 0721-832X
Electronic ISSN: 1435-702X
DOI: https://doi.org/10.1007/s00417-004-1087-4

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Springer Medicine

Intravitreal levels of vascular endothelial growth factor and interleukin-6 are correlated with macular edema in branch retinal vein occlusion

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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