Related Experiment Video
Updated: Jul 19, 2026
07:06
Collection of Frozen Rodent Brain Regions for Downstream Analyses
Published on: April 23, 2020
Expression profile of Bag 1 in the postmortem brain
Christine Curcio1, John J Asheld, Janet M Chabla
1Department of Neuroscience, New York College of Osteopathic Medicine of New York Institute of Technology, Old Westbury, NY 11568, USA.
Journal of Chemical Neuroanatomy
|October 19, 2006
Summary
Brain Bag 1 protein levels increase after death, especially at warmer storage temperatures. Postmortem interval had less impact than storage conditions on this anti-apoptotic protein.
Area of Science:
- Neuroscience
- Molecular Biology
- Cellular Biology
Background:
- Bag 1 protein regulates cell survival pathways.
- Understanding anti-apoptotic protein stability is crucial for postmortem studies.
- Rat models mimic human postmortem processes.
Purpose of the Study:
- Examine Bag 1 expression in the rat brain postmortem.
- Investigate the impact of postmortem interval and storage temperature on Bag 1.
- Assess Bag 1 protein stability in relation to sampling conditions.
Main Methods:
- Immunocytochemistry and Western blotting techniques used.
- Hippocampus tissue analyzed from rats.
- Rats subjected to varying postmortem intervals (up to 4h) and storage temperatures (4°C vs. 24°C).
Main Results:
- Significant Bag 1 up-regulation observed in hippocampal CA1 and CA3 subfields up to 4h postmortem.
- Bag 1 over-expression was dependent on storage temperature, evident only at 24°C.
- Storage temperature significantly influenced Bag 1 expression and cellular stability.
Conclusions:
- Storage temperature is a critical factor affecting Bag 1 expression postmortem.
- Postmortem intervals up to 4h have less impact on Bag 1 stability than temperature.
- Findings highlight the importance of controlled storage conditions in postmortem brain studies.
