Figure 3From: High calcium and dobutamine positive inotropy in the perfused mouse heart: myofilament calcium responsiveness, energetic economy, and effects of protein kinase C inhibitionA: Averaged calcium transients (6–8 cycles) at perfusate calcium 1.5 and 2.5 mM, B: perfusate calcium 2.5 and 3.5. mM, and C: perfusate calcium 2.0 mM and with dobutamine. D. Phase-plane plots of pressure and calcium at perfusate calcium 1.5 and 2.5 mM, E: perfusate calcium 2.5 and 3.5. mM, and F: perfusate calcium 2.0 mM and with dobutamine.Back to article page