pretreatment results were as follows : 1 ) the ganglion blocker chlorisondamine markedly attenuated the hypertension and tachycardia in the sham-operated and sinoaortic baroreceptor-denervated rats , 2 ) pretreatment with the alpha 1-adrenergic receptor antagonist prazosin virtually abolished the hypertension , and 3 ) the beta 1-adrenergic receptor antagonist atenolol markedly reduced the tachycardia .
C0032912
prazosin
C0020538
hypertension