Transcorneal electrical stimulation reduces neurodegenerative process in a mouse model of glaucoma.

Title

Transcorneal electrical stimulation reduces neurodegenerative process in a mouse model of glaucoma.

Creator

Jassim, AH;Cavanaugh M;Shah JS;Willits R;Inman DM

Publisher

Annals Of Biomedical Engineering

Date

2020
2020-09-24

Description

Glaucoma is a neurodegenerative disease in which the retinal ganglion cell axons of the optic nerve degenerate concomitant with synaptic changes in the retina, leading finally to death of the retinal ganglion cells (RGCs). Electrical stimulation has been used to improve neural regeneration in a variety of systems, including in diseases of the retina. Therefore, the focus of this study was to investigate whether transcorneal electrical stimulation (TES) in the DBA2/J mouse model of glaucoma could improve retinal or optic nerve pathology and serve as a minimally invasive treatment option. Mice (10 months-old) received 21 sessions of TES over 8 weeks, after which we evaluated RGC number, axon number, and anterograde axonal transport using histology and immunohistochemistry. To gain insight into the mechanism of proposed protection, we also evaluated inflammation by quantifying CD3 + T-cells and Iba1 + microglia; perturbations in metabolism were shown via the ratio pAMPK to AMPK, and changes in trophic support were tested using protein capillary electrophoresis. We found that TES resulted in RGC axon protection, a reduction in inflammatory cells and their activation, improved energy homeostasis, and a reduction of the cell death-associated p75NTR. Collectively, the data indicated that TES maintained axons, decreased inflammation, and increased trophic factor support, in the form of receptor presence and energy homeostasis, suggesting that electrical stimulation impacts several facets of the neurodegenerative process in glaucoma.

Subject

Glaucoma; Optic nerve; BDNF; Retina; p75NTR; Transcorneal electrical stimulation

Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Format

journalArticle

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ISSN

1573-9686

NEOMED College

NEOMED College of Medicine Student

NEOMED Department

NEOMED Student Publications

Update Year & Number

September 2020 List

Citation

Jassim, AH;Cavanaugh M;Shah JS;Willits R;Inman DM, “Transcorneal electrical stimulation reduces neurodegenerative process in a mouse model of glaucoma.,” NEOMED Bibliography Database, accessed January 21, 2021, https://neomed.omeka.net/items/show/11280.

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