Figure 6).

Total creatine kinase (CK) activity (U/g dry weight) for all groups measured throughout the reperfusion period. Rat hearts were subjected to A) control perfusion and ischemic preconditioning (IPC) ± N-2-mercaptopropionyl glycine (2-MPG) (400 μM); and B) control perfusion and pharmacological preconditioning with diazoxide (DZ) (100 μM) ± 2-MPG (400 μM). All values are expressed as mean ± SEM (n=5 to 6). A two-tailed unpaired Student’s t test was used for comparisons. *DZ was statistically different compared with the control and DZ plus 2-MPG (P<0.05)