Saussurea costus alleviates ulcerative colitis by regulating the gut microbiota and improving intestinal barrier integrity - Pang, Wen-lin; Li, Tian-gang; Wang, Yin-ying; Song, Li-yun; Li, Li; Li, Xiao-ya; Qiu, Yong; Yang, Zhong-shan (Frontiers in Cellular and Infection Microbiology, 2025)