The serum cytokine levels of TGF-β, IL-6 and IL-23 was measured by ELISA in MS patients and healthy controls.

<p>Comparison of TGF-β (A), IL-6 (B), IL-23 (C) cytokines concentrations between HC, RRMS patients in relapse and remission phase, SPMS and PPMS patients. Pearson’s correlation and regression tests between TGF-β (D), IL-6 (E), IL-23 (F) and Tc17 cells in MS patients. One-way ANOVA was used to test for differences between the groups. Subsequent multiple comparison pairwise test was Bonferroni. <i>* P-value <0</i>.<i>05</i>.