Fig. 5From: Altered intracellular Ca2+ regulation in chronic rat heart failureThe spatial averages of caffeine-induced Ca2+ transients in control (a) and HF group (b). The average amplitudes (ΔF/F 0) of caffeine-induced Ca2+ transients were 32.4 ± 1.9 in control and 12.4 ± 1.1 in HF myocytes (c). (P < 0.01, n = 10 cells from five control hearts, n = 12 cells from six HF hearts)Back to article page