Figure 4

Detection results of immunohistochemistry of MCP-1 proteins in the vessel walls. A: negative expressions of MCP-1 proteins in sham group (Immunohistochemical SP method, DAB color, × 400); (B): positive expressions of MCP-1 proteins in cytoplasm of vascular smooth muscle cells near the internal elastic plates after balloon injury for 4 days (Immunohistochemical SP method, DAB color, × 400); (C): positive expressions of MCP-1 proteins in cytoplasm of smooth muscle cells in media after balloon injury for 7 days (Immunohistochemical SP method, DAB color, × 400); (D): positive expressions of MCP-1 proteins in neointimal after balloon injury for 14 days (Immunohistochemical SP method, DAB color, × 400); (E): positive expressions of MCP-1 proteins in neointimal after balloon injury for 28 days (Immunohistochemical SP method, DAB color, × 400).