Fig. 2. Effects of sevoflurane (3–5%) on increases in R340/380and force caused by either KCl or norepinephrine in the fura-2–loaded, endothelium-denuded strips. (A ) Typical examples. Arrows indicate the phasic responses to norepinephrine. (B ) Analyzed data. The open and closed circles indicate the data for force and R340/380, respectively (n = 4–11). *P < 0.05 versus control (100%) within each group.