(99) Ulcerative colitis Gingiva Bone marrow None Mice ↓Clinical score↓Colon pathology↓Weight loss ↓Peripheral blood lymphocyte proliferation↑Infiltration of CD4+CD25+ FoxP3+ Tregs in the colon↓Infiltration of CD4+ lymphocytes in the colon↑IL-10↑IDO↑iNOS↑COX-2↓IL-6↓IL-17↓IFN-γ