Related Experiment Video
Updated: Oct 6, 2025
03:47
Author Spotlight: Methanol-Based Whole-Mount Preparation for the Investigation of Retinal Ganglion Cells
Published on: April 7, 2023
3.9K
Using methanol to preserve retinas for immunostaining.
Ningzhi Zhang1, Wenye Cao1, Xuejun He1
1Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, China.
Clinical & Experimental Ophthalmology
|January 18, 2022
Summary
Long-term storage of retinas in cold methanol preserves tissue integrity for immunostaining. This method is effective for preserving retinal vasculature, hypoxia, and retinal ganglion cell survival in experimental models.
Area of Science:
- Ophthalmology
- Neuroscience
- Histology
Background:
- Retinal immunostaining is crucial for studying retinal development and pathology.
- Methanol is used as a fixative but its long-term storage efficacy is unclear.
Purpose of the Study:
- To evaluate methanol as a preservation medium for retinal whole-mounts.
- To assess the impact of long-term methanol storage on retinal tissue.
Main Methods:
- Oxygen-induced retinopathy (OIR) and optic nerve crush (ONC) mouse models were used.
- Retinas were fixed and stored in cold methanol (-20°C) for up to 12 months.
- Immunostaining analyzed retinal vasculature, hypoxia, and RGC survival.
Main Results:
- No significant differences in retinal vasculature or hypoxia were observed in OIR models after storage.
- Retinal ganglion cell survival rates remained unchanged in ONC models after storage.
- Methanol effectively preserves retinal tissue for subsequent analysis.
Conclusions:
- Cold methanol is a suitable medium for long-term storage of fixed retinas.
- This method supports further research on retinal conditions.
