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Exocrine pancreas response to a test meal in the dog

Changes induced by 3 months' ethanol feeding

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Abstract

Three dogs, equipped with a chronic gastric fistula (Thomas cannula) and a new type of chronic pancreatic fistula that allows collection of pure nonactivated pancreatic juice after ingestion of a test meal, were subjected to the following protocols: (1) Nonalcoholic period: a test meal (400 g canned dog meal) was given and simultaneously 200 ml isotonic saline was infused through the gastric cannula. Volume, bicarbonate concentration and output, and protein output showed a peak 40 min after ingestion of the test meal. Protein concentration showed an opposite pattern. (2) Alcoholic period: during 3 months, animals were daily given through the gastric cannula 50% ethanol (2.0 g/kg) associated with a protein-supplemented diet, and test-meal experiments were repeated at the end of this period. When compared with the nonalcoholic period, the secretory response to the meal was significantly modified: Volume (−42%), bicarbonate concentration (−19%) and output (−54%) were significantly lower, protein output remained unchanged, and protein concentration increased (+74%). All 3 dogs excreted protein plugs through the catheter collecting pancreatic juice from the main pancreatic duct. It is postulated that a depression of secretin release and an increased gastrin release and cholinergic tone could be the basis of the ethanolevoked change in response to a test meal.

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Authors and Affiliations

  1. Unité de Recherches de Pathologie Digestive, INSERM U 31, 46 chemin de la Gaye, 13009, Marseille, France

    Osvaldo M. Tiscornia MD, Manfred Singer MD, Joao Paulo mendes De Oliveira MD, Pierre Demol MD & Henri Sarles MD

Authors
  1. Osvaldo M. Tiscornia MD
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  2. Manfred Singer MD
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  3. Joao Paulo mendes De Oliveira MD
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  4. Pierre Demol MD
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  5. Henri Sarles MD
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Additional information

This work was supported in part by a fellowship from Deutsche Forschungsgemeinschaft (Germany) to M. S., and a fellowship from Conselho Nacional de Desinvolvimento Cientifico e Technologico of Brazil to J.P.M.d.O.

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Tiscornia, O.M., Singer, M., De Oliveira, J.P.m. et al. Exocrine pancreas response to a test meal in the dog. Digest Dis Sci 22, 769–774 (1977). https://doi.org/10.1007/BF01694506

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