Figure 6: Immunohistochemical staining of cardiac tissue from MSCs injection regions.

The positive protein expressions could be seen in the MSCs transplanted groups (either at week 1 or week 4) versus the control group. Moreover, the intensity of immunohistochemical staining was significantly higher at week 4 than week 1 in the MSCs group. (a) The proteins include GLUT1, GLUT4, PFK and GAPDH. (b) The mTOR pathway proteins include PI3K, Akt and p70s6k. Scale bar = 100 μm.