Related Experiment Video
Updated: May 4, 2026
05:29
A Highly Reproducible and Straightforward Method to Perform In Vivo Ocular Enucleation in the Mouse after Eye Opening
Published on: October 6, 2014
25.1K
Inflammatory responses in the rat superior colliculus after eye enucleation
Marina S Hernandes1, Luiz R G Britto1
1Department of Physiology and Biophysics, Institute of Biomedical Sciences, USP, SP, Brazil.
Brain Research Bulletin
|December 17, 2013
Summary
Eye removal causes inflammation in the brain's visual centers, activating glial cells like astrocytes and microglia. Dexamethasone (DEX) treatment reduced this inflammatory response and glial activation in rats.
Area of Science:
- Neuroscience
- Neuroinflammation
- Glial cell biology
Background:
- Ocular enucleation causes significant changes in visual brain areas.
- The response of glial cells and inflammatory processes in these areas post-enucleation is not well understood.
Purpose of the Study:
- To investigate glial cell activation and inflammatory responses in the superior colliculus (SC) after ocular enucleation.
- To evaluate the efficacy of dexamethasone (DEX) in mitigating these responses.
Main Methods:
- Immunoblotting and immunostaining assays were used to detect astrocyte, microglia, and COX-2 markers in rat SC.
- Rats underwent contralateral ocular enucleation, with some receiving DEX treatment.
Main Results:
- Enucleation led to increased astrocyte and microglia marker expression in the SC.
- A transient rise in neuronal COX-2 protein was observed post-enucleation.
- DEX treatment significantly reduced COX-2 expression and glial cell activation markers.
Conclusions:
- Retinal ganglion cell loss triggers inflammatory responses in central visual structures.
- Dexamethasone effectively suppresses inflammation and glial activation following enucleation.
