Fig. 3

Comparison between the percent changes in direct effects of dexmedetomidine (Dex) on pulmonary arterial vascular smooth muscle (Fig. 1) and that of changes in the effects of Dex on contraction tension induced with 60 mM KCl (Fig. 2). The percent change in Dex on contraction tension induced with 60 mM KCl was measured relative to the contraction tension baseline induced with KCl. Each bar and accompanying line indicate the mean and SE of a group. Statistical analysis was performed with Student’s t test. *P < 0.05, compared with the percent changes in direct effects of Dex