Figure 8

Photomicrographs of kidney sections stained with Masson trichrome (scale bars = 50 μm), showing the Control group (A) with normal distribution of a small amount of collagen fibers (arrow) between the renal tubules. (B) Intoxicated group with 1 g/kg body weight/day for 5 days with n-ZnO particles. There was an evident increase of deposition of collagen fibers in the interstitium (arrow). (C) Qur-treated group, an obvious increase of collagen fibers between the renal tubules (arrow). (D) Arg-treated group, there was a small amount of collagen fibers between the renal tubules (arrow). (E) Qur + Arg-treated group: Mild increase in collagen fibers between the renal tubules (arrow).