Neuropathic Pain: Sensory Nerve Injury or Motor Nerve Injury?

  • Xian-Guo Liu
  • Rui-Ping Pang
  • Li-Jun Zhou
  • Xu-Hong Wei
  • Ying Zang
Chapter
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 904)

Abstract

Peripheral nerve injury often induces chronic neuropathic pain. Peripheral nerve is consisted of sensory fibers and motor fibers, it is questioned injury to which type of fibers is responsible for generation of neuropathic pain? Because neuropathic pain is sensory disorder, it is generally believed that the disease should be induced by injury to sensory fibers. In recent years, however, emergent evidence shows that motor fiber injury but not sensory fiber injury is necessary and sufficient for induction of neuropathic pain. Motor fiber injury leads to neuropathic pain by upregulating pro-inflammatory cytokines and brain-derived neurotrophic factor in pain pathway.

Keywords

Neuropathic pain Neuroinflammation Ectopic discharge Long-term potentiation Motor fiber 

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Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  • Xian-Guo Liu
    • 1
  • Rui-Ping Pang
    • 1
  • Li-Jun Zhou
    • 1
  • Xu-Hong Wei
    • 1
  • Ying Zang
    • 1
  1. 1.Pain Research Center and Department of Physiology, Zhongshan School of MedicineSun Yat-Sen UniversityGuangzhouPeople’s Republic of China

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