[Activation characteristics of ouabain-sensitive respiration and Na,K-ATPase in the kidney cortex and medullary zone of rats adapted to cold].

The endogenous and ouabain-sensitive respiration and Na, K-ATPase activity in the cortex and kidneys medulla of the cold-acclimated male albino rats have been determined. The increase of the respiration rate has been stated to be caused by the Na-pump activation. The obtained changes of Na, K-ATPase activity are supposed to be connected with the regulation of concentration and sodium excretion function of kidneys.