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Related Experiment Videos

Multi-organ damage resulting from experimental faecal peritonitis.

D Tighe1, R Moss, S Boghossian

  • 1Department of Medicine I, St Georges Hospital Medical School, London.

Clinical Science (London, England : 1979)
|March 1, 1989
PubMed
Summary

Faecal peritonitis caused significant organ damage, including lung and liver injury, in rabbits. This study investigated the pathological effects and identified increased phospholipase A2 activity.

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Area of Science:

  • Pathology
  • Microbiology
  • Sepsis Research

Background:

  • Peritonitis, an inflammation of the peritoneum, can lead to sepsis and multi-organ dysfunction.
  • Understanding the early pathological changes is crucial for developing effective treatments.

Purpose of the Study:

  • To investigate the morphological and molecular effects of induced faecal peritonitis in a rabbit model.
  • To assess organ damage, microbial translocation, and changes in inflammatory markers.

Main Methods:

  • Specific-pathogen-free New Zealand White rabbits underwent induced faecal peritonitis or sham operation.
  • Organs (lungs, liver, spleen, kidney, heart) were examined morphologically post-mortem.
  • Microbial cultures and serum phospholipase A2 activity were analyzed.

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Main Results:

  • Morphological damage observed in lungs, liver, and spleen, characterized by endothelial damage, cell debris occlusion, fibrin deposition, and immune cell activation.
  • No significant damage to kidneys or heart; no correlation between microbial presence and histological damage.
  • Early reduction in circulating leucocytes and platelets, diffuse intravascular coagulation, and increased serum phospholipase A2 activity.

Conclusions:

  • Faecal peritonitis induces significant multi-organ damage, particularly in the lungs and liver, independent of microbial load in affected organs.
  • The observed changes suggest a complex inflammatory response involving coagulation pathways and phospholipase A2 activation.