Figure 4

Effect of bone marrow mesenchymal stem cell transplantation on ischemia-induced infarct formation. Heart infarct area and scar formation were determined using Masson’s Trichrome staining 4 weeks after myocardial infarction (MI). (A) to (C) Images of representative infarcted hearts from a MI control rat, a MI rat receiving control bone marrow mesenchymal stem cells (C-BMSCs), and a MI rat receiving dedimethyloxalylglycine-preconditioned BMSCs (DMOG-BMSCs). (D) Transplantation of BMSCs reduced heart infarction formation; the protective effects were significantly greater with transplantation of DMOG-BMSCs. n =5 rats in each group. *P <0.05 compared with MI group; #P <0.05 compared with C-BMSC group.