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Title: Low-dose minocycline mediated neuroprotection on retinal ischemia-reperfusion injury of mice
Authors: Huang, RJ
Liang, SM
Fang, LJ
Wu, M
Cheng, HH
Mi, XS 
Ding, Y
Issue Date: 2018
Source: Molecular vision, 18 May 2018, v. 24, p. 367-378
Abstract: Purpose: The aim of this study was to investigate the effect of minocycline (MC) on the survival of retinal ganglion cells (RGCs) in an ischemic-reperfusion (I/R) injury model of retinal degeneration.
Methods: Retinal I/R injury was induced in the left eye of mice for 60 min by maintaining intraocular pressure at 90 mmHg. Low- or high-dose MC (20 or 100 mg/kg, respectively) was administered by intravenous injection at 5 min after the retinal ischemic insult and then administered once daily until the mice were euthanized. RGCs and microglial cells were counted using immunofluorescence staining. Functional changes in the RGCs were evaluated using electroretinography. The visual function was assessed using an optokinetic test.
Results: The data demonstrated that the effect of MC was dose dependent. Low-dose MC showed protective effects, with reduced RGC loss and microglial activation, while the high-dose MC showed damage effects, with more RGC loss and microglial activation when compared with the vehicle group. The electroretinography and optokinetic test results were consistent with the morphologic observations.
Conclusions: These data suggested that appropriate concentrations of MC can protect the retina against retinal ischemic-reperfusion injury, while excessive MC has detrimental effects.
Publisher: Molecular Vision
Journal: Molecular vision 
EISSN: 1090-0535
Appears in Collections:Journal/Magazine Article

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