Axoplasmic transport block reduces ectopic impulse generation in injured peripheral nerves

Pain. 1983 May;16(1):73-85. doi: 10.1016/0304-3959(83)90087-8.

Abstract

Afferent fibers ending in nerve end neuromas in rats generate a substantial ectopic discharge and are sensitive to light pressure and to circulating adrenaline. Treatment of the nerve with colchicine or vinblastine at the time of the nerve section resulted in a dose-dependent reduction in the extent of this discharge. Such treatment also reduced neuroma discharge that had already gotten underway.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Axonal Transport* / drug effects
  • Axons / physiology
  • Colchicine / pharmacology
  • Epinephrine / pharmacology
  • Male
  • Nerve Block
  • Nerve Endings / physiology
  • Neuroma / physiopathology
  • Neurons, Afferent / physiology*
  • Pain / physiopathology
  • Peripheral Nerve Injuries*
  • Peripheral Nervous System Neoplasms / physiopathology
  • Rats
  • Synaptic Transmission
  • Vinblastine / pharmacology

Substances

  • Vinblastine
  • Colchicine
  • Epinephrine