we studied adrenoreceptor density and affinity in the myocardial and pooled arterial smooth muscle membranes in a baboon model ( grollman 2-kidney , 2-figure-of-8 ) of hypertension , using tritiated prazosin ( alpha 1-antagonist ) , yohimbine ( alpha 2-antagonist ) and dihydroalprenolol ( beta-antagonist ) as ligands .
C0020538
hypertension
C0032912
prazosin