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Related Experiment Videos

Neuropeptides, inflammation, and motility.

E A Mayer1, H Raybould, C Koelbel

  • 1Department of Medicine, Harbor-UCLA Medical Center, Torrance 90509.

Digestive Diseases and Sciences
|March 1, 1988
PubMed
Summary

Neurogenic inflammation involves nerve activation and mediator release, causing vasodilation and plasma extravasation. This process, involving peptides like Substance P, may play a key role in inflammatory bowel disease.

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Area of Science:

  • Neuroscience
  • Gastroenterology
  • Immunology

Background:

  • Neurogenic inflammation is a physiological response involving nerve activation and mediator release.
  • This reaction includes vasodilation, plasma extravasation, and smooth muscle contraction.
  • Unmyelinated afferent nerve endings are central to initiating this inflammatory process.

Purpose of the Study:

  • To explore the mechanisms of neurogenic inflammation.
  • To identify candidate mediators involved in neurogenic inflammation.
  • To investigate the potential role of neurogenic inflammation in inflammatory bowel disease.

Main Methods:

  • Review of existing literature on neurogenic inflammation and its mediators.
  • Analysis of the role of afferent nerve endings and axon reflexes.
  • Examination of peptide colocalization and neuronal pathways.

Main Results:

  • Activation of afferent nerve endings releases inflammatory mediators.
  • Candidate mediators include Substance P, somatostatin, vasoactive intestinal polypeptide, and calcitonin gene-related peptide.
  • Evidence suggests peptide colocalization and communication between mucosal and muscle nerves.

Conclusions:

  • Neurogenic inflammation is a complex response mediated by peripheral nerve endings.
  • Various peptides are implicated as key mediators in this process.
  • Neurogenic inflammation is a significant factor to consider in the pathogenesis of inflammatory bowel disease.

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