Fig. 3From: Mesenchymal stem cells cultured in serum-free medium ameliorate experimental peritoneal fibrosisEffects of MSC injection on CD3+ T-lymphocyte and macrophage infiltration and on M2 macrophage polarization in CG-induced peritoneal fibrosis. a Immunohistochemical analyses for CD3+ T lymphocytes, CD68+ macrophages, and CD163+ M2 macrophages. We measured 50 fields from 5 rats per group. b Graph showing the number of CD3- and CD68-positive cells per group. c For assessing the polarization into CD163+ M2 macrophages, the ratio of CD163+ cells (M2 macrophages) to CD68+ cells (total macrophages) were calculated for each rat (n = 5 rats per group). Abbreviations are as in Fig. 1. *P < 0.05 (Kruskal–Wallis test)Back to article page