[Effect of corticosteroids on content of amino acids in liver tissue during muscular activity]

Metabolism of amino acids in the liver in connection with the adrenocortical functions of the adrenals was studied in rats as affected by 3-hour swimming. This load causes an increase in the content of corticosterone in blood, in the activity of alanine aminotranspherase as well as the decrease in the amount of free amino acids in the liver tissue. These changes are absent in adrenalectomized rats and appear again when corticosterone is administered to adrenalectomized animals before swimming.