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Neuropathic Pain: Molecular Mechanism and Therapy

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Neurobiology".

Deadline for manuscript submissions: closed (15 February 2023) | Viewed by 4633

Special Issue Editor


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Guest Editor
Department of Anesthesiology, School of Medicine, Dokkyo Medical University, Tochigi, Japan
Interests: assessment and management of neuropacic pain; pharmacotherapy for managing neuropathic pain; basic research about mechanisms of neuropathic pain; excitatory transmission in the spinal dorsal horn; GABAergic inhibitory synaptic transmission in the spinal dorsal horn; expression of the GABA receptor subunits in the spinal dorsal horn; expression of NMDA receptors in serotonergic and/or GABAergic neurons in the midbrain periaqueductal gray

Special Issue Information

Dear Colleagues,

Analgesic opioids have been playing an important role in pain management for a long time. It has been pointed out that the use of analgesic opioids might be inadequate in countries like Japan, while North America suffers from overprescription of these medications. To promote the proper use of opioid analgesics and raise awareness, this Special Issue welcomes original research and review articles. We especially welcome reviews focusing on clarifying the mechanisms of neuropathic pain, the molecular biology of opioid receptor characteristics, acute tolerance to opioid analgesics, and hyperalgesia, which include, but are not limited to, differential expression of NMDA receptors in serotonergic and/or GABAergic neurons in the midbrain periaqueductal gray; changes in characteristics of NMDA receptors subunits in the spinal dorsal horn; functional and structural changes in GABA receptor subunits in the spinal dorsal horn; the relationship between HPC-1/syntaxin 1A and synaptic plasticity in the nociceptive pathway; and others in peripheral inflammation and peripheral nerve injury.

Prof. Dr. Shigeki Yamaguchi
Guest Editor

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Keywords

  • neuropathic pain
  • nociceptive pathway
  • serotonergic neuron
  • NMDA receptor
  • GABA receptor
  • synaptic plasticity
  • syntaxin 1A
  • whole-cell recording
  • ingle-cell RT-PCR

Published Papers (1 paper)

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Review

16 pages, 981 KiB  
Review
The Downregulation of Opioid Receptors and Neuropathic Pain
by Lin Li, Jing Chen and Yun-Qing Li
Int. J. Mol. Sci. 2023, 24(6), 5981; https://doi.org/10.3390/ijms24065981 - 22 Mar 2023
Cited by 9 | Viewed by 4216
Abstract
Neuropathic pain (NP) refers to pain caused by primary or secondary damage or dysfunction of the peripheral or central nervous system, which seriously affects the physical and mental health of 7–10% of the general population. The etiology and pathogenesis of NP are complex; [...] Read more.
Neuropathic pain (NP) refers to pain caused by primary or secondary damage or dysfunction of the peripheral or central nervous system, which seriously affects the physical and mental health of 7–10% of the general population. The etiology and pathogenesis of NP are complex; as such, NP has been a hot topic in clinical medicine and basic research for a long time, with researchers aiming to find a cure by studying it. Opioids are the most commonly used painkillers in clinical practice but are regarded as third-line drugs for NP in various guidelines due to the low efficacy caused by the imbalance of opioid receptor internalization and their possible side effects. Therefore, this literature review aims to evaluate the role of the downregulation of opioid receptors in the development of NP from the perspective of dorsal root ganglion, spinal cord, and supraspinal regions. We also discuss the reasons for the poor efficacy of opioids, given the commonness of opioid tolerance caused by NP and/or repeated opioid treatments, an angle that has received little attention to date; in-depth understanding might provide a new method for the treatment of NP. Full article
(This article belongs to the Special Issue Neuropathic Pain: Molecular Mechanism and Therapy)
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