The effect of endothelium removal (E-) on the concentration-response curves for phenylephrine in aortic rings in control (CT) conditions or HgCl2 (A,B).

<p>Results (mean±SEM) are expressed as a percentage of the response to 75 mmol/l KCl. *<i>P</i><0.05 by ANOVA. Number of animals used in parentheses. (C) Differences in area under the concentration-response curve (dAUC) in the presence and absence of the endothelium of aortic rings in control (CT) conditions or HgCl₂. *<i>P</i><0.05 by Student’s <i>t</i>-test.