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Effects of K+ channel blockers on the relaxation induced by jabuticaba hydroalcoholic extract (JHE) in isolated arteries pre-contracted with phenylephrine (0.1 µM) in the absence or presence (20 min) of the blockers tetraethyl-ammonium (TEA, 1 mM), glibenclamide (Glib, 3 µM), clotrimazole (5 µM) and 4-aminopyridine (4-AP, 1 mM). The points represent mean ± SEM of the relaxant effect expressed as % relaxation. Significant difference: *p < 0.05; *** p < 0.001 vs. Control
