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    We aimed to create a mechanical optic nerve damage model in rats and to investigate the neuroprotective effects of topical Coenzyme Q10 + Vitamin E TPGS (CoQ10+Vit E) molecule on retinal ganglion cells. In our study, 30 eyes of 20 male Wistar rats were used. Three groups, each consisting of 10 eyes, were formed as control, experimental, and treatment groups. The control group was used to test the formation of optic nerve damage. Topical CoQ10 + Vit E TPGS solution was applied to the rats in the treatment group, one drop twice a day for 3 weeks. On the other hand, physiological drops were applied to the experimental group 2 times a day for 3 weeks. After 3 weeks, the optic nerves of the rats were dissected and examined histopathologically. In electron microscopic examination of the treatment group, it was noted that the myelin sheath in the majority of myelinated nerve fibers and the normal structures of mitochondria, neurotubules, and neurofilaments in the axoplasm were preserved. It was observed that the oligodendrocytes surrounded the myelinated axons. In the experimental group, significant degenerative changes were observed in myelinated nerve fibers in many areas. The number of myelinated axons was significantly increased in the treatment group compared to the experimental group (p = .0028). In the light of the data obtained, the neuroprotective effect of the topically used CoQ10 + Vit E TPGS molecule was found to be histopathologically effective in our experimental study.Abbreviations: NAAION: Nonarteritic anterior ischemic optic neuropathy; CoQ10: Coenzyme q10; CG: Control group; EG: Experimental group; TG: Treatment group.

    Citation

    Oğuzhan Oruz, Kemal Yar, Dilek Şaker, Arbil Açıkalın, Yusuf Kenan Dağlıoğlu, Sait Polat. Histopathological effects of topical coenzyme q 10 + Vit E TPGS in experimental ischemic optic neuropathy. Ultrastructural pathology. 2022 Jan 02;46(1):54-62

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    PMID: 34978274

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