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[Activation of peritoneal macrophages in rats with caerulein-induced pancreatitis]

A Toyokawa1, Y Takeyama, H Haranomura

  • 1First Department of Surgery, Kobe University School of Medicine.

Nihon Shokakibyo Gakkai Zasshi = the Japanese Journal of Gastro-Enterology
|November 1, 1993
PubMed

Insights

Peritoneal macrophages (M phi) show increased free radical production during caerulein-induced pancreatitis. This macrophage activation may contribute to remote organ failure in acute pancreatitis.

Area of Science:

  • Immunology
  • Gastroenterology
  • Pathophysiology

Context:

  • Acute pancreatitis is a significant gastrointestinal disease.
  • Peritoneal macrophages play a role in inflammatory responses.
  • Caerulein-induced pancreatitis serves as a model for studying acute pancreatitis.

Purpose:

  • To investigate the activation state of peritoneal macrophages in a model of acute pancreatitis.
  • To determine the role of free radical production by macrophages in pancreatitis progression.

Summary:

  • Peritoneal macrophages were isolated from rats undergoing caerulein-induced pancreatitis.
  • Free radical production by macrophages was measured using nitro blue tetrazolium reduction assay.
  • Increased free radical production by macrophages was observed starting at 12 hours, peaking at 20 hours post-caerulein infusion.

Impact:

  • Demonstrates macrophage activation in mild edematous pancreatitis.
  • Suggests a potential mechanism involving activated macrophages in the development of remote organ failure in acute pancreatitis.
  • Highlights macrophages as a potential therapeutic target in acute pancreatitis management.

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