Fig. 6

Changes in serum CK-MB and CTnI levels. a Changes in the serum CKMB content. b Changes in the serum CTnI content vs. the N group. ^aP < 0.05 versus the N group; ^bP < 0.05 versus the IR group; ^cP < 0.05 versus the IPO group; ^dP < 0.05 versus the DM + IPO group. CTnl cardiac troponin, CK-MB creatine kinase isoenzyme, N normal, IR ischemia–reperfusion, IPO ischemia post-conditioning, DM + IPO DM ischemia post-conditioning, DM + IPO + dme DM ischemia post-conditioning with inhibitor