Iturin A Potentiates Differentiation of Intestinal Epithelial Defense Cells by Modulating Keap1/Nrf2 Signaling to Mitigate Oxidative Damage Induced by Heat-Stable Enterotoxin B. - Zan GX; Qu HZ; Li XY; Peng QL; Wang XF; Li RS; Zhao YG; Yan HC; Zhou JY; Wang XQ (Antioxidants (Basel, Switzerland), 2025)