Effect of the unbalanced expressions of VEGF and PEDF on diabetic nephropathy / 中华内分泌代谢杂志

The expressions of vascular endothelial growth factor(VEGF)and pigment epithelium derived factor(PEDF)in the tubulointerstitium were determined by immunohistochemistry in the streptozotoein-induced diahetic rats.The mRNA expressions of VEGF and PEDF in normal rat kidney (NRK) were measured by using RT-PCR under different high glucose conditions.The results showed that VEGF expression increased and PEDF expression decreased in the kidney tissue of the streptozotocin-induced diabetic rats.Hiish glucose increased VEGF expression and decreased PEDF expression in N RK cells in a time-and dose-dependent manner.The unbalanced expressions of VEGF and PEDF may play an important role in the occurrence and progression of diabetic nephropathy.