Ketamine's Effects on Avoidance Responses in Mice
Author Information
Author(s): Moura Clarissa A., de Sousa-Silva Anne N., Soares Ana Lívia Mesquita, de Oliveira Torres Carina I., Belchior Hindiael, da Silva Jr Edilson D., Gavioli Elaine C.
Primary Institution: Federal University of Rio Grande do Norte
Hypothesis
Can ketamine affect avoidance memory and emotional behaviors in stressed mice?
Conclusion
Ketamine, particularly the (R,S)-isomer, shows potential in reducing avoidance responses and treating stress-related disorders.
Supporting Evidence
- Ketamine did not affect memory retrieval but reduced avoidance responses.
- (S)-ketamine significantly reduced the frequency of escapes during re-exposition.
- (R,S)-ketamine increased total distance moved in the open field test.
- Both forms of ketamine reduced immobility time in the tail suspension test.
- Only (R,S)-ketamine exhibited anxiolytic effects.
Takeaway
This study found that ketamine can help mice feel less scared and avoid things that make them anxious, which could help people with stress problems.
Methodology
Mice were subjected to inescapable stress and then tested in active avoidance, tail suspension, and open field tests after ketamine administration.
Limitations
The study did not observe long-term effects of ketamine on avoidance responses and lacked electrophysiological data.
Participant Demographics
Male Swiss mice, 12 weeks old.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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