Matrix metalloproteinase-9 contributes to parenchymal hemorrhage and necrosis in the remnant liver after extended hepatectomy in mice

Figure 3 Immunohistochemical staining for matrix metalloproteinase-9 in the remnant liver. A: Representative images of matrix metalloproteinase (MMP)-9 staining in a non-necrotic area in group II; B: Representative images of MMP-9 staining in a necrotic area in group II; C: Histogram of MMP-9 expression as described in the material and methods section: Enhanced MMP-9 expression was observed in areas close to the focus of necrosis (^aP < 0.05).