Serum levels after ischemia reperfusion. Serum levels of A: Lactate dehydrogenase (LDH); B: Creatine kinase (CK); C: tumor necrosis factor (TNF)-α; D: Interleukin (IL)-10 immediately after 3 h ischemia (0 h) and 1, 3, 6, 12 and 24 h reperfusion in sham, ischemia reperfusion (IR) and remote ischemic postconditioning (RIP) groups (n = 6 per group at each timepoint). aP < 0.05 vs sham group, bP < 0.01 vs sham group; dP < 0.01 vs IR group.