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Assessment of Morphine-induced Hyperalgesia and Analgesic Tolerance in Mice Using Thermal and Mechanical Nociceptive Modalities
JoVE Journal
Neuroscience
This content is Free Access.
JoVE Journal Neuroscience
Assessment of Morphine-induced Hyperalgesia and Analgesic Tolerance in Mice Using Thermal and Mechanical Nociceptive Modalities
DOI:

07:23 min

July 29, 2014

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Chapters

  • 00:05Title
  • 01:24Tail Immersion Test (TIT)
  • 02:39Tail Pressure Test (TPT)
  • 03:31Acute Morphine-induced Analgesia
  • 04:42Chronic Morphine Treatment
  • 05:32Results: Morphine-induced Hyperalgesia and Analgesic Tolerance
  • 06:48Conclusion

Summary

Automatic Translation

We describe a protocol to examine the development of opioid-induced hyperalgesia and tolerance in mice. Based on the measurement of thermal and mechanical nociceptive responses of naïve and morphine-treated animals, it allows to quantify the increase in pain sensitivity (hyperalgesia) and decrease in analgesia (tolerance) associated with chronic opiate administration.

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