A Study on Dynamic Variation of Saikosaponin Contents Research on mechanism of energy metabolism disorders of rat‘s hepatoxicity induced by saikosaponins Determination of Saikosaponins in Radix Bupleuri by HPLC Studies on the Chemical Constituents of Roots of Bupleurum longicaule Wall.ex DC.var.franchetii de Boiss and B.chaishoui Shan et Sheh Study on Hepatotoxicity on rats caused by crude extracts of totalsaikosaponins `and correlation with oxidative damage mechanism Studies on the High Yield Techniques for Buplerum falcatum L. "Dose-toxicity" relationship study on rat‘s chronic hepatoxicity of refined products of saikosaponin by alcohol elution