Astragalus polysaccharide attenuates rat experimental colitis by inducing regulatory T cells in intestinal Peyer’s patches

Figure 4 Concentrations of cytokines in the colonic mucosa. A: Concentrations of IL-17 in the colonic mucosa from different groups; B: Concentrations of IL-2 in the colonic mucosa from different groups; C: Concentrations of IL-6 in the colonic mucosa from different groups; D: Concentrations of TGF-β in the colonic mucosa from different groups. Data are mean ± SEM (n = 8). ^aP < 0.05, ^bP < 0.01, ^eP < 0.0001 vs normal group; ^cP < 0.05, ^dP < 0.01, ^fP < 0.001, ^gP < 0.0001 vs TNBS group. TNBS: 2,4,6-trinitrobenzene sulfonic acid; APS: Astragalus polysaccharide; MES: Mesalazine.