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Metformin protects against retinal ischemia/reperfusion injury through AMPK-mediated mitochondrial fusion
This study aims to evaluate the protective effect of metformin against retinal I/R injury and its underlying mechanism. I/R induced reduction in retina thickness and cell number in ganglion cell layer, and metformin alleviated I/R-induced retinal injury. Both retinal I/R and simulated ischemia/reperfusion (SIR) in R28 cells down-regulated expression of mitochondrial fusion protein Mfn2 and OPA1, which led to mitochondrial fission. Metformin also alleviated damage in R28 cells, and reversed the alteration in Mfn2 and OPA1, mitochondrial fission and mitochondrial membrane potential (MMP) disruption-induced by I/R or SIR as w...
Source: Free Radical Biology and Medicine - May 30, 2023 Category: Biology Authors: Kun Zhang Tao Wang Gui-Feng Sun Jin-Xing Xiao Li-Ping Jiang Fang-Fang Tou Xin-Hui Qu Xiao-Jian Han Source Type: research

siRNA Mediated Downregulation of RhoA Expression Reduces Oxidative Induced Apoptosis in Retinal Ganglion Cells
CONCLUSION: The results suggested that siRhoA may exert potentially effective neuroprotection for RGCs by reducing injury.PMID:37171014 | DOI:10.2174/1566524023666230511095628
Source: Molecular Medicine - May 12, 2023 Category: Molecular Biology Authors: Qian Liu Changgeng Liu Bo Lei Source Type: research

Nestin contributes to laser choroidal and retinal neovascularization
CONCLUSIONS: Our results confirmed the presence of nestin in glial (e.g., astrocytes), reactive Müller, and endothelial cells. They demonstrated their critical involvement in a rat model of retinal and choroidal neovascularization experimentally induced using ocular laser impacts.PMID:36284669 | PMC:PMC9514549
Source: Molecular Vision - October 26, 2022 Category: Molecular Biology Authors: Sofiane Miloudi Maud Valensi Mohamed El Sanharawi Marc M Abitbol Francine Behar-Cohen Claudine Versaux-Botteri Source Type: research

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