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Cumulative concentration-response curves showing relaxation responses of isolated rat basilar arteries to C21 (10 nmolL –1 µmol/L) in the absence and presence of the AT2R antagonist PD123319 (10 µmol/L). Results are expressed as percent relaxation of U46619-induced tone and are given as mean±SEM (n = 5–7). *P<0.05 vs. control, (2-way ANOVA).
