Dose-Dependent Retinal Changes Following Sodium Iodate Administration: Application of Spectral-Domain Optical Coherence Tomography for Monitoring of Retinal Injury and Endogenous Regeneration*

Published on Sep 15, 2014in Current Eye Research1.754
· DOI :10.3109/02713683.2014.892996
Anna Machalińska17
Estimated H-index: 17
,
Renata Lejkowska4
Estimated H-index: 4
(Pomeranian Medical University)
+ 4 AuthorsBogusław Machaliński32
Estimated H-index: 32
(Pomeranian Medical University)
Sources
Abstract
AbstractBackground: The purpose of this study was to demonstrate the progression of acute retinal injury by correlating histological sections with in vivo spectral-domain optical coherence tomography (SD-OCT) images.Methods: Male C57BL/6 mice were treated intravenously with two different sodium iodate (NaIO3) doses (35 mg/kg or 15 mg/kg). In vivo SD-OCT was performed up to 3 months post-injury. Ex vivo retinal histology, TUNEL and IsolectinB4 immunostaining were also conducted. Quantitative comparison of histopathological images and SD-OCT images was performed.Results: SD-OCT examination revealed that administration of 35 mg/kg NaIO3 was associated with progressive and irreversible retinal degeneration. On day 3 post-injury, we found numerous apoptotic cells in the outer nuclear layer (ONL) that strongly corresponded to hyper-reflective areas in the SD-OCT images. At 7 d post-injury, SD-OCT images showed irregular-shaped patterns of hyper-reflectivity in the retinal pigment epithelium (RPE) that correspon...
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