Fig. 9
H2S reduces the number of MCP-1-positive cells in lung tissues on the 7th day. a–e Immunohistochemistry staining of MCP-1. a In the control group, few MCP-1-positive cells were present in the lung tissues. b In the model group, note the strong expression of MCP-1-positive cells in the markedly thickened submesothelial compact zone; c, d In the treatment group, comparison with the model group, the racontained significantly fewer MCP-1-positive cells in the lung tissues; e In the NaHS group, MCP-1-positive cells were similar to that of control mice. Data are presented as the mean ± SD. *** P < 0.001 versus control group. ### P < 0.001 versus modle group