Lipoxin A4 Preconditioning and Postconditioning Protect Myocardial Ischemia/Reperfusion Injury in Rats
Comparison of cardiac MDA content and SOD and Na+-K+-ATPase activities at T2 among all groups ( for each group). At time point T2, myocardial tissue was collected right after the I/R procedure was over and kept frozen in liquid nitrogen. MDA content and SOD and Na+-K+-ATPase activities were measured as described in the section of Materials and Methods. (a) SOD activity; (b) MDA content; (c) Na+-K+-ATPase activity. * for comparisons of I/R1 and LX1 groups with C1 group, for comparisons of I/R2 and LX2 with C2 group; # for comparisons of LX1 group with I/R1 group, for comparisons of LX2 group with I/R2 group; Δ for comparisons of LX2 group with LX1 group.