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The effect of overnight exposure of the porcine coronary artery to 1 µg·mL−1 LPS, in the presence or absence of either (A, B) 0.1 µM quercetin or (C, D) 1 µM quercetin, on responses elicited by KCl and U46619. The responses shown are as mean ± SEM of 13–26 observations. *P < 0.05, significant difference between responses for the paired LPS-treated preparations. LPS, lipopolysaccharide.
