Functional evaluation of peripheral nerve regeneration and target reinnervation in animal models: A critical overview

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Abstract

© 2016 Federation of European Neuroscience Societies and John Wiley & Sons Ltd. Peripheral nerve injuries usually lead to severe loss of motor, sensory and autonomic functions in the patients. Due to the complex requirements for adequate axonal regeneration, functional recovery is often poorly achieved. Experimental models are useful to investigate the mechanisms related to axonal regeneration and tissue reinnervation, and to test new therapeutic strategies to improve functional recovery. Therefore, objective and reliable evaluation methods should be applied for the assessment of regeneration and function restitution after nerve injury in animal models. This review gives an overview of the most useful methods to assess nerve regeneration, target reinnervation and recovery of complex sensory and motor functions, their values and limitations. The selection of methods has to be adequate to the main objective of the research study, either enhancement of axonal regeneration, improving regeneration and reinnervation of target organs by different types of nerve fibres, or increasing recovery of complex sensory and motor functions. It is generally recommended to use more than one functional method for each purpose, and also to perform morphological studies of the injured nerve and the reinnervated targets.
Original languageEnglish
Pages (from-to)271-286
JournalEuropean Journal of Neuroscience
Volume43
Issue number3
DOIs
Publication statusPublished - 1 Feb 2016

Keywords

  • Electrophysiology
  • Functional recovery
  • Locomotion
  • Nerve regeneration
  • Reinnervation

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