“Adrenergic … as dl-propranolol (10(-8)-10(-6) M), oxprenolol (10(-8)-10(-6) M), and …(-6)-10(-4) M) blocked equally the inhibition of alanine and glutamine release, prevented the stimulations of muscle cAMP levels, phosphosphorylase a formation, … depletion of muscle glycogen produced by either epinephrine or serotonin.”