[Marginal Protection of Retinal Cells by Bisperoxovanadium : Appropriate Therapy in the Model of Retinal Ischemia?]

Overview

Journal Ophthalmologe

Specialty Ophthalmology

Date 2018 Feb 7

PMID 29404677

Citations 1

Authors

M Glaser

M Palmhof

D Schulte

H Schmid

G Stute

H B Dick

S C Joachim

Affiliations

Soon will be listed here.

Abstract

Background: Ischemic processes usually lead to the destruction of retinal cells and therefore play a key role in a multitude of eye diseases.

Objective: The aim of this study was to investigate whether bisperoxovanadium has a potential neuroprotective effect in an ischemia/reperfusion animal model.

Material And Methods: Initially, ischemia was induced in one eye of an ischemia/reperfusion model and 3 days later, a 14-day medication-based treatment was initiated. Bisperoxovanadium was administered intraperitoneally every 3 days. Subsequently, the number of ganglion cells, the rate of apoptosis, amacrine cells, macroglia, microglia, and their activation state, as well as photoreceptors were determined by histological and immunohistochemical analyses.

Results: In comparison to the control group, a significant retinal ganglion cell loss, a significant reduction of the inner layers as well as a decrease in photoreceptor and amacrine cell numbers could be determined in the ischemic eyes. In addition, there was an increase in the number of microglia in these animals. The rats treated with bisperoxovanadium did not exhibit a significant neuroprotective effect regarding the number of ganglion cells, the rate of apoptosis, macroglia, amacrine cells, or photoreceptors; however, a low structural degeneration of photoreceptors could be observed as an effect of the treatment. Additionally, fewer microglia and activated microglia were observed after bisperoxovanadium treatment.

Conclusion: Bisperoxovanadium seems to have only a marginal neuroprotective effect on ischemic retinae. It needs to be examined whether earlier therapy onset, higher dose or different route of administration would significantly improve the results or whether this therapeutic approach is unsuitable.

Citing Articles

[Cell loss in retinal ischemia is associated with increased necroptosis].

Tsai T, Deppe L, Dick H, Joachim S Ophthalmologie. 2024; 121(8):644-649.

PMID: 38922403 DOI: 10.1007/s00347-024-02063-z.

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