Dynamic expression of extracellular signal-regulated kinase in rat liver tissue during hepatic fibrogenesis

Figure 1 α-SMA protein expression in immunohistochemically-stained liver tissue (SP × 200). A: Few α-SMA expressions in sham operation group; B: Positive α-SMA cells residing in the cells of portal ducts, fiber septa, perisinuses and around the proliferated bile ducts 2 wk after BDL; C: Positive areas of α-SMA expression in model groups at wk 1 to 4 after common bile duct ligation.