FOXP3 and Behcet disease: The frequency of Foxp3+ cells and CD4+CD25+ cells was increased after E. rectale (1.7x108 C.F.U/mouse) treatment compared to untreated BD mice (9.36 ± 7.94% vs. 3.12 ± 1.75; 2.0 ± 1.36% vs. 0.78 ± 0.40, respectively) (Figures 6L, M).