Inhibition of Renal Tubular Responsiveness to Antidiuretic Hormone By Pyrogens.

Abstract
In dogs a water diuresis was established and then inhibited by intravenous Pitressin. The Pitressin infusion was continued and a single large intravenous pyrogen dose then given. After a delay period a water diuresis developed. During pyrogen diuresis the urine was markedly hyposmolar to plasma indicating antidiuretic hormone (ADH) inhibition. If a pyrogen diuresis is established first, it cannot be inhibited by large doses of Pitressin. These experiments indicate an alteration of renal tubular response to ADH induced by pyrogens.

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