Fig. 4

Effects of progenitor cells on the structure of glomerular filtration barrier. After 16-week treatment, rat kidneys were harvested and ultra-structures of glomerular filtration barrier evaluated by transmission electron microscopy (a) ×20,000, Control normal rats, Diabetes DN rats treated with saline, Progenitors DN rats after transplantation, Insulin DN rats treated with insulin. The mRNA expression of core proteins of GPSD (b). *P < 0.01 versus control group, ^# P < 0.01 versus diabetic group