Periplanta americana extract regulates the Th17/Treg cell balance via Notch1 in ulcerative colitis - Zheng, Yanqiu; Li, Huibiao; Qi, Shiyu; Xiao, Fan; Song, Jinbin; Liu, Shiyin; Chen, Xinlin; Li, Yanwu; Chen, Muyuan (Frontiers in Pharmacology, 2025)