a decreasing trendP <0.05
Furthermore, after 4-HC induced, the content of ferrous iron was obviously increased and those in all administration group showed a decreasing trend ( P <0.05), especially in the SCM group ( P <0.05, Figure 4 D), indicating that the treatment of salidroside, CM and SCM inhibited the mitochondrial membrane potential decrease and ferrous iron increase of GCs induced by 4-HC in vitro.