[Activity of liver and brain arginase during hypothermia]

The content of urea and activity of arginase in the brain and liver have been determined in squirrels falling into hibernation and in rats with an artificial decrease of the body temperature. It is shown that the intensity of urea synthesis under hypothermia (20, 10 degrees C) in the studied organs of animals falling into hibernation remains at high level in contrast to animals without such adaptation.