Modulation of visceral nociceptive pathways

Curr Opin Pharmacol. 2007 Dec;7(6):593-7. doi: 10.1016/j.coph.2007.09.008. Epub 2007 Oct 25.

Abstract

Increased sensitivity of visceral nociceptive pathways contributes to symptoms in an array of clinical gastrointestinal conditions, however, the search for a consistently effective pharmacological agent to treat these conditions remain elusive. Modulation of visceral nociceptive pathways can occur at peripheral, spinal and supra-spinal sites and a dizzying array of potential drug targets exists. Till date, only tricyclic anti-depressants (TCAs) such as amitriptyline and, more recently, selective serotonin reuptake inhibitors (SSRIs) such as citalopram have demonstrated convincing visceral anti-nociceptive properties and clinical benefit in a limited population of patients with visceral hypersensitivity. Unfortunately, there is an incomplete understanding of the receptors and/or primary site of action at which these compounds exert their effects and significant side effects are often encountered. There is a continuing and concerted effort underway to develop target-specific visceral analgesic/anti-hyperalgesic compounds and the aim of this article is to provide a concise update on the most recent advances in this area.

Publication types

  • Review

MeSH terms

  • Acid Sensing Ion Channels
  • Animals
  • Human Growth Hormone / analogs & derivatives
  • Human Growth Hormone / pharmacology
  • Humans
  • Membrane Proteins / drug effects
  • Nerve Tissue Proteins / drug effects
  • Neural Pathways / drug effects*
  • Pain / physiopathology*
  • Probiotics
  • Receptors, Adrenergic, alpha-2 / drug effects
  • Receptors, Proteinase-Activated / drug effects
  • Sodium Channels / drug effects
  • TRPV Cation Channels / drug effects

Substances

  • Acid Sensing Ion Channels
  • Membrane Proteins
  • Nerve Tissue Proteins
  • Receptors, Adrenergic, alpha-2
  • Receptors, Proteinase-Activated
  • Sodium Channels
  • TRPV Cation Channels
  • Human Growth Hormone