stimulation of pth release by ( - ) epinephrine and ( - ) norepinephrine was potentiated by phentolamine and inhibited by the beta-adrenergic blocker , ( - ) propranolol , demonstrating alpha-adrenergic modulation of hormone release and confirming the close relationship between camp accumulation and pth release previously shown in this system .
C0014563
epinephrine
C0028351
norepinephrine