The neuromodulation of neuropathic pain by measuring pain response rate and pain response duration in animal

Jinhyung Kim, Sung Eun Lee, Jaewoo Shin, Hyun Ho Jung, Sung June Kim, Jin Woo Chang

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Objective : Neuropathic pain causes patients feel indescribable pain. Deep Brain Stimulation (DBS) is one of the treatment methods in neuropathic pain but the action mechanism is still unclear. To study the effect and mechanism of analgesic effects from DBS in neuropathic pain and to enhance the analgesic effect of DBS, we stimulated the ventral posterolateral nucleus (VPL) in rats. Methods : To observe the effect from VPL stimulation, we established 3 groups : normal group (Normal group), neuropathic pain group (Pain group) and neuropathic pain+DBS group (DBS group). Rats in DBS group subjected to electrical stimulation and the target is VPL. Results : We observed the behavioral changes by DBS in VPL (VPL-DBS) on neuropathic pain rats. In our study, the pain score which is by conventional test method was effectively decreased. In specific, the time of showing withdrawal response from painful stimulation which is not used measuring method in our animal model was also decreased by DBS. Conclusion : The VPL is an effective target on pain modulation. Specifically we could demonstrate changes of pain response duration which is not used, and it was also significantly meaningful. We thought that this study would be helpful in understanding the relation between VPL-DBS and neuropathic pain.

Original languageEnglish
Pages (from-to)6-11
Number of pages6
JournalJournal of Korean Neurosurgical Society
Issue number1
Publication statusPublished - 2015 Jan 1

Bibliographical note

Publisher Copyright:
© 2015 The Korean Neurosurgical Society.

All Science Journal Classification (ASJC) codes

  • Surgery
  • Neuroscience(all)
  • Clinical Neurology


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