Figure 2.

Effect of LeTx on intracellular Ca²⁺ transients in cardiomyocytes from WT and catalase mice. A: Resting fura-2 fluorescence intensity (FFI); B: electrically stimulated rise in FFI (ΔFFI); C: Single exponential intracellular Ca²⁺ transient decay rate; and D: Bi-exponential intracellular Ca²⁺ transient decay rate. Mean ± SEM, n = 60 to 75 cells from two to three mice per group, *P <0.05 vs. WT group, #P <0.05 vs. WT-LeTx group.