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Figure 3 Bar graph showing the relaxing effect of biochanin A (3, 10 and 30 µM) on rabbit coronary artery rings with (n = 6) and without endothelium (n = 6). Rings were precontracted with K+ (30 mM). Data are expressed as percentage relaxation of contraction induced by K+ (mean ± SEM). Control indicates a time-matched equivalent volume of solvent (n = 12–14). *indicates significant differences in comparison with control; * = p < 0.05; ** = p < 0.001.
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