Figure 5: Histopathology of liver tissues in rats treated with ZnO-NPs for 5 consecutive days. (L1) Control group showing normal liver, (L2) pathological alterations in the liver of ZnO-NPs (10 mg/kg) treated rats manifested by sinusoidal congestion (SC) and RBC (Red Blood Cells) deposit and inflammatory response (IR),Sinusoide (S), Vein (V). L1 and L2 magnification x 400.