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Effects of bombesin, calcitonin, and enkephalin on canine jejunal water and electrolyte transport

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Abstract

The aim of this investigation was to study the effects of the peptides bombesin, calcitonin, and enkephalin on net jejunal water and electrolyte fluxes using the triple-lumen gut perfusion technique in conscious dogs. Intestinal transport was measured during intravenous infusions of bombesin (1 μg/kg/hr, 8 studies), or calcitonin (3 μg/kg/hr, 5 studies), or methionine enkephalin (20 μg/kg/hr, 6 studies); each dog was used as its own control with infusion of 150 mmol/liter NaCl preceding and succeding each peptide infusion. Net water absorption was reduced from a control value of 17±4.18 to 7±1.79 μl/cm/min by bombesin (P<0.05) and increased from a control value of 15±3.95 to 29±5.58 μl/cm/min by enkephalin (P<0.05). Bombesin reduced net sodium and chloride absorption, while enkephalin increased net absorption of sodium and bicarbonate. Calcitonin did not have any detectable effect in the dose used in this study in dogs. We conclude that bombesin and enkephalin can effect the transport of water and electrolytes in the canine jejunum.

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Authors and Affiliations

  1. Department of Medicine, University of Otago, P. O. Box 913, Dunedin, New Zealand

    Gilbert O. Barbezat MD & Philip G. Reasbeck FRCS

  2. Department of Surgery, University of Otago, P. O. Box 913, Dunedin, New Zealand

    Gilbert O. Barbezat MD & Philip G. Reasbeck FRCS

Authors
  1. Gilbert O. Barbezat MD
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  2. Philip G. Reasbeck FRCS
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This work was supported by the Medical Research Council of New Zealdn, the Medical Research Distribution Committee, and the McGillvray Brothers Trust and Bequest.

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Barbezat, G.O., Reasbeck, P.G. Effects of bombesin, calcitonin, and enkephalin on canine jejunal water and electrolyte transport. Digest Dis Sci 28, 273–277 (1983). https://doi.org/10.1007/BF01295123

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  • DOI: https://doi.org/10.1007/BF01295123

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