Myofibroblastic cell activation and neovascularization predict native liver survival and development of esophageal varices in biliary atresia

Figure 2 Comparison of collagen 1 (A), α-smooth muscle actin (B) and CD34 (C) staining by immunohistochemistry between patients, who received liver transplant by two years of age and native liver survivors. The results are expressed as proportion of the antibody-positive area. All of the studied proteins were overexpressed at the time of Kasai portoenterostomy in patients, who were transplanted by two years. The box represents interquartile range, line across the box median, and the whiskers 90^th percentile range. NL: Native liver; LT: Liver transplant; α-SMA: α-smooth muscle actin.