Impact of Experimental Endogenous Gram-Negative Peritonitis on the Pancreas of the Rat as Evaluated by Cationic Trypsin-Like Immunoreactivity in Peritoneal Fluid and Serum and by Electron Microscopy of Pancreatic Tissue

J. Florholmen Laboratory of Gastroenterology, Dept. of Medicine and Surgery, University Hospital of Troms0, and Institute of Medical Biology, University of Tromsø, Tromsø, Norway, and Medizinische Klinik Innenstadt der Universität, University of Munich, Munich, FRG

R. Riepl Laboratory of Gastroenterology, Dept. of Medicine and Surgery, University Hospital of Troms0, and Institute of Medical Biology, University of Tromsø, Tromsø, Norway, and Medizinische Klinik Innenstadt der Universität, University of Munich, Munich, FRG

S. M. Almdahl Laboratory of Gastroenterology, Dept. of Medicine and Surgery, University Hospital of Troms0, and Institute of Medical Biology, University of Tromsø, Tromsø, Norway, and Medizinische Klinik Innenstadt der Universität, University of Munich, Munich, FRG

R. Myklebust Laboratory of Gastroenterology, Dept. of Medicine and Surgery, University Hospital of Troms0, and Institute of Medical Biology, University of Tromsø, Tromsø, Norway, and Medizinische Klinik Innenstadt der Universität, University of Munich, Munich, FRG

P. G. Burhol Laboratory of Gastroenterology, Dept. of Medicine and Surgery, University Hospital of Troms0, and Institute of Medical Biology, University of Tromsø, Tromsø, Norway, and Medizinische Klinik Innenstadt der Universität, University of Munich, Munich, FRG

K.-E. Giercksky Laboratory of Gastroenterology, Dept. of Medicine and Surgery, University Hospital of Troms0, and Institute of Medical Biology, University of Tromsø, Tromsø, Norway, and Medizinische Klinik Innenstadt der Universität, University of Munich, Munich, FRG

D. Malm Laboratory of Gastroenterology, Dept. of Medicine and Surgery, University Hospital of Troms0, and Institute of Medical Biology, University of Tromsø, Tromsø, Norway, and Medizinische Klinik Innenstadt der Universität, University of Munich, Munich, FRG

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Abstract

Endogenous gram-negative peritonitis leading to septic shock was induced in rats by a defined perforation of the coecum. Cationic trypsin-like immunoreactivity (CTLI) was measured in peritoneal fluid and serum by a radioimmunoassay method. Five, 10, and 15 h after the coecal perforation, CTLI in peritoneal fluid was significantly higher than before the coecal perforation and also higher than in the corresponding control rats. Moreover, CTLI in serum was under the same conditions significantly higher 10 and 15 h after the induction of peritonitis. Gel chromatography of peritoneal fluid and serum during peritonitis showed free CTLI and CTLI bound to both alpha-1-antitrypsin and alpha-2-macroglobulin, whereas only free CTLI could be detected in serum from control rats. These findings were accompanied by local ultrastructural changes in the acinar cells as evaluated by electron microscopy. The pathophysiologic implications of the findings are discussed.

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Impact of Experimental Endogenous Gram-Negative Peritonitis on the Pancreas of the Rat as Evaluated by Cationic Trypsin-Like Immunoreactivity in Peritoneal Fluid and Serum and by Electron Microscopy of Pancreatic Tissue

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Impact of Experimental Endogenous Gram-Negative Peritonitis on the Pancreas of the Rat as Evaluated by Cationic Trypsin-Like Immunoreactivity in Peritoneal Fluid and Serum and by Electron Microscopy of Pancreatic Tissue

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