Figure 6: Histopathology of kidney tissues in rats treated with ZnO-NPs (10mg/ kg) for 5 consecutive days. K1 control group showing normal architecture of renal corpuscles with their glomeruli (G) and renal tubules (RT); K2 treated group with 10 mg/kg body weight/day ZnO-NPs for 5 days, showing intratubular protein deposition (IPD) but no significant glomerular changes (G). K1 and K2 magnification x 400.