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Time-course of effects of i.c.v. 5-HT (10 µg) on mean arterial blood pressures (MAP), heart rates (HR), hindquarter (HQF), renal (RF) and mesenteric (MF) blood flows, and hindquarter (HQR), renal (RR) and mesenteric (MR) vascular resistances in conscious freely-moving rats which had received i.v. injections of saline (n = 7) or L-NAME (25 µmol/kg, n = 7). Each value is the mean± SE of the percentage changes in these parameters. *P < 0.05, L-NAME versus saline.
