Decoction-derived bioactive nanoparticles of Lycopodium japonicum Thunb. attenuate knee osteoarthritis by regulating MAPK/ERK signaling - Xiaohui Chen; Gang Liang; Liangwei Wang; Zhilang Xie; Zhongpan Li; Yulin Xiang; Rongzhu Li; Fulan Zhao; Xiaojun Chen; Rui Huang (Naunyn-Schmiedeberg's Archives of Pharmacology, 2026)