Figure 7From: Role of quercetin and arginine in ameliorating nano zinc oxide-induced nephrotoxicity in rats Photomicrographs of kidney sections from normal and intoxicated rats with 600 mg/kg body weight/day n-ZnO particles for 5 days stained with Masson trichrome (scale bars = 50 μm). All groups revealed normal distribution of a small amount of collagen fibers (arrow) between the renal tubules in the interstitium.Back to article page