10.1371/journal.pone.0033008.t001 Lei Cao Lei Cao Yaping Zhang Yaping Zhang Yong-Xiao Cao Yong-Xiao Cao Lars Edvinsson Lars Edvinsson Cang-Bao Xu Cang-Bao Xu Contractile response property of coronary arteries induced by K<sup>+</sup>, S6c and ET-1. Public Library of Science 2013 coronary arteries induced s6c 2013-02-20 08:04:11 Dataset https://plos.figshare.com/articles/dataset/_Contractile_response_property_of_coronary_arteries_induced_by_K_S6c_and_ET_1_/341938 <p>The coronary arteries were isolated from rats exposed to fresh air, cigarette smoke and cigarette smoke plus GW5074 (0.5 mg/kg). E<sub>max</sub> represents maximal contraction, pEC<sub>50</sub> represents the negative logarithm of the agonist concentration that produces 50% of the maximal contractile effect. Coronary artery contractile responses were induced by K<sup>+</sup>, S6c and ET-1. K<sup>+</sup>-induced responses were expressed as absolute values of contraction (mN), and S6c and ET-1-elicited responses were expressed as percentage of K<sup>+</sup>-induced contraction. Statistical analysis was performed with unpaired student's <i>t</i>-test with Welch's correction.</p>**<p><i>P</i><0.01 <i>vs.</i> fresh air group;</p>##<p><i>P</i><0.01 <i>vs.</i> smoke group.</p>