Fluoxetine Restores MOP Levels After Methamphetamine Withdrawal
Author Information
Author(s): H. Yamamoto, Y. Takamatsu, K. Imai, E. Kamegaya, Y. Hagino, M. Watanabe, T. Yamamoto, I. Sora, H. Koga, K. Ikeda
Primary Institution: Tokyo Institute of Psychiatry
Hypothesis
Chronic post-treatment with fluoxetine can restore the reduction of mu-opioid receptor (MOP) levels in the frontal cortex following long-term abstinence from methamphetamine.
Conclusion
Chronic fluoxetine treatment during methamphetamine withdrawal can restore reduced MOP gene expression in the frontal cortex.
Supporting Evidence
- Fluoxetine abolished the conditioned place preference developed by methamphetamine administrations.
- MOP gene expression was significantly reduced in the frontal cortex after long-term withdrawal.
- Chronic administration with fluoxetine restored the reduced MOP levels in the frontal cortex.
Takeaway
This study found that giving fluoxetine to mice after they stopped using methamphetamine helped bring back important brain signals that were lowered during drug use.
Methodology
Mice were treated with methamphetamine and then given fluoxetine or saline to assess changes in conditioned place preference and gene expression.
Limitations
The study was conducted on mice, which may not fully represent human responses to fluoxetine treatment.
Participant Demographics
Ten-week-old male C57BL/6J mice were used in the study.
Statistical Information
P-Value
0.0003
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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