Revealing the pharmacological mechanisms of nao-an dropping pill in preventing and treating ischemic stroke via the PI3K/Akt/eNOS and Nrf2/HO-1 pathways oleh Chen Wang, Zhe-Ming Xiong, You-Quan Cong, Zi-Yao Li, Yi Xie, Ying-Xiao Wang, Hui-Min Zhou, Yan-Fang Yang, Jing-Jing Liu, He-Zhen Wu