Figure 4.
CD31 and Ki67 immunohistochemistry: brown staining (arrows) for endothelial cells (objective magnification 10× and 40×). (a) The number of blood vessels increased in time with the highest number of blood vessels at 16 weeks after CCl4 administration and at 3 weeks after CBDL induction (10×). (b) The number of Ki67-positive proliferating endothelial cells increased as well after CCl4 administration and CBDL induction (40×; red arrows: endothelial cells, black arrows: proliferating hepatocytes).