Fig. 1. Mean arterial pressure in awake and anesthetized dogs, 5 min (5postH) and 60 min after hemorrhage (60postH) and 60 min after retransfusion (60postR). Values are presented as mean ± SEM; n = 6. *P < 0.05 versus awake. §P < 0.05 versus control. $ P < 0.05 versus anesthesia. AT1B = angiotensin II receptor blockade; AT1B + ETAB = combined receptor blockade; ETAB = endothelin-A receptor blockade.