A. DEN group, note to proliferation of hepatic stellate cells (Square), necrotic hepatocytes (Black arrows) and hepatocytes with enlarged nuclei (Karyomegali) (Blue arrows) (H & E, Bar: 50µm). B. DEN group, note to blue fibers around portal area (MT staining, Bar: 50 µm). C. Part of picture A with high magnification, proliferated stellate cells is obvious (Blue square) (H & E, Bar: 20 µm). D. Part of picture C, note to increased blue fibers (MT staining, Bar: 50 µm). E. DEN + EPE group, note to retained Architecture of liver (H & E, Bar: 50 µm). F. DEN + EPE group, normal rate of Blue materials (MT Staining, Bar: 50 µm). G. Part of picture E, note to cell swelling (Black arrows) in hepatocytes (H & E, Bar: 20 µm). H. Part of picture F, cell swelling in hepatocytes (Blue arrows) and blue fibers (Black arrows) are obvious (MT staining, Bar: 20 µm).