Vascular Protective Effect of an Ethanol Extract of Camellia japonica Fruit: Endothelium-Dependent Relaxation of Coronary Artery and Reduction of Smooth Muscle Cell Migration

Figure 2

Characterization of endothelium-dependent relaxations to CJF in porcine coronary artery rings. Representative original tracing (a), corresponding cumulative data (b). The relaxation response is expressed as the percentage relaxation of the U46619-induced contraction. Effect of CJF on contractile responses (c). As indicated, intact rings were exposed to CJF (30 μg/mL) 30 min before the addition of increasing concentrations of U46619. Results are shown as means ± SEM (). , , , significant difference versus rings without endothelium (b) or control (c).

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