Research Article

Endothelium-Dependent Vasorelaxant Effect of Butanolic Fraction from Caryocar brasiliense Camb. Leaves in Rat Thoracic Aorta

Figure 3

Effect of BF (0.3, 3, and 30 μg/mL) on the contractile responses elicited by incremental addition of Ca2+ (10 μM–0.1 mM) to aortic rings depolarized by isotonic KCl (60 mM) in a Ca2+-free solution. The concentrations of BF are indicated on the graph. Contractile responses are expressed as the percentage of maximum contraction evoked by KCl (120 mM). The results show the mean ± SEM of 5–7 experiments.
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