Human vascular alpha-adrenoceptors. A study of peripheral arteries and veins in vitro and in vivo.
By means of a sensitive myograph and alpha-receptor subtype selective agonists and antagonists the postjunctional alpha-adrenoceptors were characterized in small omental and groin arteries and veins and in long saphenous veins obtained from 52 "healthy" adults during surgery. These vessels were found to have a mixed population of contraction mediating postjunctional alpha-receptors with a predomin