Effects of Shennao Fuyuan Decoction combined with implantation of hUC-MSCs on expression of neurotrophic factors in cerebral ischemia-reperfusion rats Ephedrine and naloxone promote nerve remodeling after cerebral ischemia Effect of ginsenoside Rb1 on neurotrophic factors in elderly rats with postoperative fatigue syndrome Protection and mechanism of notoginsenoside-Rg_1 on focal cerebral ischemia-reperfusion rats Antidepressive effects of petroleum ether extract from Ranae Oviductu and its possible mechanism