T helper cell 17/regulatory T cell balance regulates ulcerative colitis and the therapeutic role of natural plant components: a review - Zhao, Da; Ge, Anqi; Yan, Cong; Liu, Xingci; Yang, Kailin; Yan, Yexing; Hao, Moujia; Chen, Junpeng; Daga, Pawan; Dai, Charles C.; Li, Changping; Cao, Hui (Frontiers in Medicine, 2025)