FIG. 5.

Effect of TN on intracellular Ca²⁺ properties in cardiomyocytes from WT and MyAkt mice. Murine cardiomyocytes were incubated with TN (3 μg/ml) for 5–6 h in vitro before intracellular Ca²⁺ evaluation. (A) Baseline FFI; (B) electrically stimulated increase in FFI (ΔFFI); (C) intracellular Ca²⁺ decay rate (single exponential); and (D) intracellular Ca²⁺ decay rate (biexponential). Mean±SEM, n=52–54 cells per group, *p<0.05 versus WT group; ^#p<0.05 versus WT-TN group.