a decreasing trendp = 0.039
When we additionally added 5 ng/ml TGF-β to induce Treg cell differentiation, the percentage of Foxp3 + Treg cells in CD4 + T cells showed a decreasing trend with increasing concentrations of LA (Fig. 5b, g , 25 μM, p = 0.039; 50 μM, p = 0.001) but did not cause differentiation of Th17 cells (Fig. 5b, f , p > 0.05).