Fig. 6.
Effect of the Ca2+-calmodulin-dependent protein kinase II inhibitor, AIP. A: mean ICaL density-voltage relations for Sham myocytes with AIP included in the pipette solution (n/N = 4/1). Black-filled circles, AIP-dialyzed cells in control Tyrode’s; open circles, AIP-dialyzed cells in the presence of 100 nmol/l calyculin A. B: mean ICaL density-voltage relations for CAL myocytes with AIP included in the pipette solution (n/N = 5/1). Black-filled squares, AIP-dialyzed cells in control Tyrode’s; open squares, AIP-dialyzed cells in the presence of 100 nmol/l calyculin A. Data from Sham (A) and CAL (B) myocytes under control conditions (respectively, n/N = 33/12 and 31/10) are shown as, respectively, gray-filled circles and gray-filled squares, for comparison. ***P < 0.001, 2-way repeated-measures ANOVA and Bonferroni posttest vs. corresponding AIP control.