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  • Title: The effects of vasopressin on renal sodium excretion in pigs given intravascular hypertonic salt loads.
    Author: Scott D, Morton JJ.
    Journal: Q J Exp Physiol Cogn Med Sci; 1977 Jan; 62(1):73-82. PubMed ID: 583991.
    Abstract:
    Young pigs of about 25-30 kg liveweight were given intravenous infusions of a hypertonic sodium chloride solution (4-6 mol.1(-1)) at rates varying from 2-6 mmol.min-1. Such infusions resulted in a marked increase in the urine flow and in urinary sodium excretion, the size of these increases being proportional to infusion rate. Circulating vasopressin levels were also markedly increased, the size of these increases being the same as those seen in other pigs given exogenous vasopressin in amounts which were shown to increase urinary sodium excretion. This suggests that vasopressin was probably contributing to the increase in renal sodium excretion seen in those pigs given the intravenous salt loads.
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