Figure 2: PP2Acα ablation attenuated CCl4-induced liver fibrosis. Masson’s trichrome staining (a) and Sirius red staining (b) of liver tissue sections from the control and PP2Acα knockout mice at 5 weeks after the chronic CCl4 treatment. Magnification, ×100. Bar, 50 μm. The histograms show the mean percentage of the staining area per total liver area determined from five randomly selected fields. Values are means ± SD, . and .