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Related Experiment Videos

Stress and visceral perception.

M M Delvaux1

  • 1Gastroenterology Unit and Laboratory of Digestive Motility, CHU Rangueil, Toulouse, France. 106521.3337@compuserve.com

Canadian Journal of Gastroenterology = Journal Canadien De Gastroenterologie
|April 15, 1999
PubMed
Summary
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Stress significantly impacts functional bowel disorders by altering visceral perception. Understanding this stress-visceral link is key for developing new treatments targeting the central nervous system.

Area of Science:

  • Gastroenterology
  • Neuroscience
  • Psychology

Background:

  • Functional bowel disorders (FBDs) often involve visceral hyperalgesia, an increased gut sensation.
  • Patients with FBDs are more susceptible to daily life stressors.
  • The precise relationship between stress and visceral perception remains unclear.

Purpose of the Study:

  • To evaluate the relationship between stress and visceral perception in FBDs.
  • To explore the mechanisms underlying stress-induced changes in gut sensation.
  • To integrate findings into a model of FBD pathophysiology.

Main Methods:

  • Review of studies on healthy volunteers and irritable bowel syndrome (IBS) patients.
  • Analysis of rectal distension perception thresholds and rectal tone.

Related Experiment Videos

  • Examination of animal models and neurochemical mediators.

    • Main Results:

    • Stress can either increase (distraction) or decrease (sensitization) visceral perception thresholds.
    • Stress alters rectal tone but typically not rectal compliance.
    • Cognitive processes play a role in stress modulation of visceral perception.

    Conclusions:

    • Stress is a crucial factor in the pathophysiology of functional bowel disorders.
    • Corticotropin-releasing factor and mast cell mediators are implicated.
    • Targeting the central nervous system may offer new therapeutic avenues for FBDs.