Effects of ginsenosides on hypothalamic-pituitary-adrenal function and brain-derived neurotrophic factor in rats exposed to chronic unpredictable mild stress Behaviour on effect of herb pair of Bupleuri Radix and Paeoniae Alba Radix in chronic unpredictable mild stress depression model of rats Pathological study on depression mechanism based on endogenous metabolite changes of chronic unpredictable mild stress model 1H-NMR metabonomics on antidepression of Xiaoyao Powder composed of Bupleurum scorzonerifolium or Bupleurum chinense Analysis on endogenous metabolites in cecal tissue of CUMS-induced depression rats after Xiaoyao San intervention by GC-MS metabolomics 1H-NMR metabonomics on antidepression of Xiaoyao Powder composed of Bupleurum scorzonerifolium or Bupleurum chinense Effect of herb pair of Bupleuri Radix and Paeoniae Alba Radix on single amine neurotransmitter in brain of CUMS depression model of rats