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Representative recordings showing the capsaicin-induced excitatory renal reflex. A Renal infusion of capsaicin at 1 nmol/min for 20 min causes reflex changes of arterial blood pressure (ABP), mean arterial pressure (MAP) and contralateral renal sympathetic nerve activity (RSNA). B Effect of pretreatment with PVN microinjection of losartan (10 nmol) on the reflex. The pretreatment was carried out 10 min before renal infusion of vehicle (PBS) or capsaicin.
