Normal butanol fraction of Polygonum hydropiper L. flavonoids reduces inflammation caused by PCV2 infections in cell and mouse models - Wei, Yu-heng; Zhou, Shu-mian; Zhao, Wen; Chen, Qi; Wang, Qiu-hua; Yu, Mei-ling; Wei, Ying-yi; Hu, Ting-jun (Frontiers in Veterinary Science, 2025)