Effects of ASCs and the ASC-secretome on liver regeneration-related proteins. a Immunohistochemical staining of the Ki67 protein in liver tissue sections at all time points in the four groups. b Results of Ki67 immunohistochemical analysis. c Western blot of liver regeneration-related proteins. d Analysis of PCNA protein expression levels. Figure 4e: Analysis of p-STAT3 protein expression levels. f Analysis of SOCS3 protein expression levels. The data are expressed as the mean ± SD. ∗p < 0.05, ∗∗p < 0.01, versus the saline group. #p < 0.05, ##p < 0.01, versus the DMEM group.