[Indices of hormonal regulation of water-electrolyte metabolism and reception of cyclic AMP in the kidney papilla of rats during cold adaptation].

Antidiuretic hormone plasma concentration and urine aldosterone excretion decrease during adaptation to cold in rats. At the same time diuresis and natriuresis considerably increase. Specific 3H-cAMP kidney papilla cytosol binding enhances significantly in cold adapted rats. Alterations in hormonal regulation of fluid-electrolyte metabolism may be regarded as homeostatic response aimed at stabilization of hydration level in conditions of cold hypermetabolism.