Comparison of cardiac myeloperoxidase (MPO), superoxide dismutase (SOD) activity, and malondialdehyde (MDA) content at T
2 among all groups. At time point T
2, myocardial tissue was collected immediately after the I/R procedure was completed and was kept frozen in liquid nitrogen. MPO, SOD activity, and MDA content were measured as described in Materials and methods. A MPO activity; B SOD activity; C MDA content. *
P < 0.05 for comparisons of I/R1 and LX1 groups with C1 group, P < 0.05 for comparisons of I/R2 and LX2 groups with C2 group; #
P < 0.05 for comparisons of LX1 group with I/R1 group, P < 0.05 for comparisons of LX2 group with I/R2 group