Effects of different treatments on proinflammatory cytokine concentrations in the serum
Concentrations of six representative cytokines, IL-1β (A), IL-6 (B), IL-17 (C), TNF-α (D), IFN-γ (E), and MCP-1 (F), in the serum of rats were assessed after various treatments. The Kruskal–Wallis test followed by the pairwise Wilcoxon rank sum test was applied to test the differences in cytokine levels among different groups. *, P < 0.05; **, P < 0.01. n = 6 samples per group.