[Changes in the ratio of secreted thyroid hormones under the action of adrenaline, propranolol and thyrotropic hormone].

The injection of 0.5 mM of adrenalin and 3.3 X 10(-3) M of propranolol in the thyroid artery of the thyroid lobe perfused in a thermostatic chamber (37 degrees C) 1h after the beginning of perfusion caused a decrease in the index of thyroid deiodination by 48 and 37%, respectively. Adrenalin injection 2 h after TSH lowered the stimulating effect of the latter on thyroxine thyroid conversion. A conclusion is made that adrenalin testing can suppress the activity of thyroid conversion of T4 into T3 and decrease the activity of TSH-stimulated deiodination.