Stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitus

Background: Pathogenetic mechanisms of glaucoma remain largely poorly understood. Some authors consider diabetes as a major risk factor for glaucomatous damage. Determination of the state of lysosomal membranes of the retina and optic nerve in primary glaucoma associated with diabetes is important f...

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Main Author: V. R. Yurevych
Format: Article
Language:English
Published: Ukrainian Society of Ophthalmologists 2018-04-01
Series:Journal of Ophthalmology
Subjects:
Online Access:https://www.ozhurnal.com/en/archive/2018/2/9-fulltext
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author V. R. Yurevych
author_facet V. R. Yurevych
author_sort V. R. Yurevych
collection DOAJ
description Background: Pathogenetic mechanisms of glaucoma remain largely poorly understood. Some authors consider diabetes as a major risk factor for glaucomatous damage. Determination of the state of lysosomal membranes of the retina and optic nerve in primary glaucoma associated with diabetes is important for establishing the pathogenesis of this combined disorder. Purpose: To investigate the structural and functional stability of lysosomes in a rabbit model of experimental glaucoma (ocular hypertension) associated with streptozotocin-induced diabetes. Materials and Methods: A total of 34 adult rabbits were used in the study to model streptozotocin-induced diabetes only, glaucoma (ocular hypertension) only or glaucoma associated with diabetes. The activity of the marker lysosomal enzyme, acid phosphatase, was determined in the retinal and optic nerve tissue. Results: Stability of lysosomal membranes in the neuronal ocular tissue was found to be sharply decreased in the model of glaucoma associated with diabetes. The activity of the marker lysosomal enzyme, acid phosphatase, changed more markedly in the model of glaucoma associated with streptozotocin-induced diabetes than in those of diabetes only or glaucoma only. Conclusion: Lysosomal dysfunction is a pathogenetic phase of the glaucomatous process in the presence of diabetes mellitus.
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spelling doaj.art-0ed7c8575c9f4e47a6df04457eb105702023-12-25T11:02:15ZengUkrainian Society of OphthalmologistsJournal of Ophthalmology2412-87402018-04-012454910.31288/oftalmolzh/2018/2/4549Stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitusV. R. Yurevych0Danylo Halytsky Lviv National Medical UniversityBackground: Pathogenetic mechanisms of glaucoma remain largely poorly understood. Some authors consider diabetes as a major risk factor for glaucomatous damage. Determination of the state of lysosomal membranes of the retina and optic nerve in primary glaucoma associated with diabetes is important for establishing the pathogenesis of this combined disorder. Purpose: To investigate the structural and functional stability of lysosomes in a rabbit model of experimental glaucoma (ocular hypertension) associated with streptozotocin-induced diabetes. Materials and Methods: A total of 34 adult rabbits were used in the study to model streptozotocin-induced diabetes only, glaucoma (ocular hypertension) only or glaucoma associated with diabetes. The activity of the marker lysosomal enzyme, acid phosphatase, was determined in the retinal and optic nerve tissue. Results: Stability of lysosomal membranes in the neuronal ocular tissue was found to be sharply decreased in the model of glaucoma associated with diabetes. The activity of the marker lysosomal enzyme, acid phosphatase, changed more markedly in the model of glaucoma associated with streptozotocin-induced diabetes than in those of diabetes only or glaucoma only. Conclusion: Lysosomal dysfunction is a pathogenetic phase of the glaucomatous process in the presence of diabetes mellitus.https://www.ozhurnal.com/en/archive/2018/2/9-fulltextglaucomaocular nerve tissuelysosomal dysfunctionrabbits
spellingShingle V. R. Yurevych
Stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitus
Journal of Ophthalmology
glaucoma
ocular nerve tissue
lysosomal dysfunction
rabbits
title Stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitus
title_full Stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitus
title_fullStr Stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitus
title_full_unstemmed Stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitus
title_short Stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitus
title_sort stability of lysosomal membranes of ocular neuronal structures in the rabbit model of glaucoma in the presence of experimental diabetes mellitus
topic glaucoma
ocular nerve tissue
lysosomal dysfunction
rabbits
url https://www.ozhurnal.com/en/archive/2018/2/9-fulltext
work_keys_str_mv AT vryurevych stabilityoflysosomalmembranesofocularneuronalstructuresintherabbitmodelofglaucomainthepresenceofexperimentaldiabetesmellitus