Fig. 4

Effects of hucMSCs on kidney morphology in diabetic rats. A and B Representative micrographs and renal injury score of PAS-stained and HE-stained of left renal tissues (200× and 400×) (scale bar = 50 μm). C and D Representative micrographs and renal injury score of PAS-stained and HE-stained of right renal tissues (200× and 400×) (scale bar = 50 μm). Red arrows indicate vacuolation of tubular epithelial cells, and blue arrows indicate glomerular vacuolar degeneration. Data were shown as mean ± SD, n = 3, unpaired, student's t test. *P < 0.01 versus the normal group, ^#P < 0.05 and ^##P < 0.01 versus the model group