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Pancreatic Duct Obstruction in the Pig: Electron Microscopy of Chronic Pancreatitis

Obstruktion av ductus pancreaticus hos svin. En elektronmikroskopisk undersökning av kronisk pankreatit

Abstract

Ultrastructural alterations of pancreatic tissues in growing pigs caused by surgical ligation of the main pancreatic duct are described. Five animals aged 6 to 7 weeks were operated on and necropsied 2, 6 or 8 weeks later. In addition, 3 pigs that were sham-operated served as controls. Obstruction of the ducts caused progressive luminal dilatations and rupture of intercellular connections of the epithelium followed by destruction and atrophy of acinar parenchyma and proliferations of immature ductular epithelial cells free from zymogen granules.

Sammanfattning

Morfologiska alterationer i pankreasvävnaden beskrivs hos växande svin med ligerad pankreasgång. Fem försöksdjur, 6–7 veckor gamla, opererades och obducerades 2, 6 och 8 veckor senare. Som kontroll användes 3 sham-opererade svin. Obstruktionen förorsakade progressiv dilatation av den ligerade pankreasgången och intercellulära rupturer i epitelet. Den akinära vävnaden atrofierades och ersattes med proliferationer av immatura epitelceller utan zymogengranula.

References

  • Andersson NV: Chronic (relapsing) pancreatitis. In: Spontaneous Animal Models of Human Disease, Ed. Andrew EJ, Ward BC, Altman NH. Vol. I, Academic Press, New York 1979, p. 34–36.

    Google Scholar 

  • Boquist L, Edstrom C: Ultrastructure of pancreatic acinar and islet parenchyma in rats at various intervals after duct ligation. Virchows Arch. Abt. A Path. Anat. 1970, 1970, 349, 69–70.

    CAS  Google Scholar 

  • Catala J, Bonnafous R, Dutrillaux MC, Hollande E: Dissociation of Langerhans islets in the rabbit after pancreatic duct ligation. Immunocytochemical and ultrastructural studies. Virchows Arch. (Cell. Pathol.) 1987, 52, 539–551.

    Article  CAS  Google Scholar 

  • Churg A, Richter WR: Early changes in the exocrine pancreas of the dog and rat after ligation of the pancreatic duct. Amer. J. Path. 1971, 63, 521–534.

    CAS  PubMed  Google Scholar 

  • Klöppel G, Dreyer T, Willemer S, Kern H, Adler G: Human acute pancreatitis: its pathogenesis in the light of immunocytochemical and ultrastructural findings in acinar cells. Virchows Arch. (Pathol. Anat.) 1986, 409, 791–803.

    Article  Google Scholar 

  • Longnecker DS: Pathology and pathogenesis of diseases of the pancreas. Amer. J. Path. 1982, 107, 99–121.

    CAS  PubMed  Google Scholar 

  • Pang WF, Adams JH, Beasley VR, Buck WB, Haschek WM: Myocardial and pancreatic lesions induced by T-2 toxin, a Trichothecene mycotoxin, in swine. Vet. Pathol. 1986, 23, 310–319.

    Article  CAS  Google Scholar 

  • Rahko T, Grönlund A-M, Kalima TV, Saloniemi H: A new animal model for exocrine pancreatic insufficiency. Path. Res. Pract. 1985, 180, 309.

    Google Scholar 

  • Rahko T, Nikander S, Kalima TV, Saloniemi H: An experimental study of exocrine pancreatic insufficiency in the pig. Proceedings 4th Joint Meeting Veterinary Pathologists, 1986, p. 136.

    Google Scholar 

  • Rahko T, Kalima TV, Saloniemi H: Pancreatic duct obstruction in the pig: Light microscopy of chronic pancreatitis. Acta vet. scand. 1987, 28, 285–289.

    CAS  PubMed  Google Scholar 

  • Schiller WR, Syriyapa C, Anderson MC: A review of experimental pancreatitis. J. Surg. Res. 1974, 16, 69–90.

    Article  CAS  Google Scholar 

  • Zelander T, Ekholm R, Edlund Y: The ultrastructure of rat exocrine pancreas after experimentally occluded outflow. Ultrastruct. Res. 1964, 10, 89–102.

    Article  CAS  Google Scholar 

  • Zeligs J, Janoff A, Dumont AE: The course and nature of acinar cell death following pancreatic ligation in the guinea pig. Amer. J. Path. 1975, 80, 203–206.

    CAS  PubMed  Google Scholar 

  • Walters MN-I, Archer JM, Padadimitriou JM: Pancreatic duct obstruction: ultrastructural morphology of the acute phase. Pathology 1969, 1, 95–104.

    Article  CAS  Google Scholar 

Download references

Acknowledgements

Electron microscopial studies were performed in the Laboratory of Electron Microscopy, College of Veterinary Medicine, Helsinki.

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Rahko, T., Saloniemi, H. & Kalima, T.V. Pancreatic Duct Obstruction in the Pig: Electron Microscopy of Chronic Pancreatitis. Acta Vet Scand 29, 255–258 (1988). https://doi.org/10.1186/BF03548379

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