Fig. 7.
Effect of bupivacaine (Bupi) on Ca2+ sensitivity and maximal force of mouse ventricular myofilaments. Ca2+ force relationship curves for skinned ventricular muscle strips isolated from mouse hearts in the absence (time-matched controls, TMCs, open circles) and presence of 5 µM bupivacaine (closed circles). *P < 0.05, Two-way ANOVA with Bonferroni posttest. #Significant differences in pCa50 values, extra sum-of-squares F test. CIs for pCa50 are plotted in gray.