Figure 7. Treatment with 10 µM KB-R7943 (KBR) or 10 µM MDL28170 (MDL) reduced the activity of calpain in the Ca²⁺ paradoxic hearts.

A. Group results on calpain activity by using Suc-LLVY-AMC. B. Representative blots for α-fodrin are shown at the top, along with the densitometric analysis result (bottom). C. Ponceau Red staining of the membrane. The values were expressed as arbitrary units relative to the control, which was given a value of 1. Each bar represents the mean±SEM, n = 6. ^## P<0.01 vs. the control, ^† P<0.01 vs. the 3-min Ca²⁺ depletion group (CaD3), **P<0.01 vs. the corresponding group without the drug. MDL+C, MDL28170 control; KBR+C, KB-R7943 control; and CaD5, 5-min Ca²⁺ depletion group.