Protective Effect of XinXin Capsule on learning and Memory Impairment in Mice Influence of different compatibility for Improved Peach Gum to balance release of complex components Studies on Improvement of Memory in Mice by Extracts fromLeaves of Ginkgo biloba L. Comparative Study of Contents of Four Tropane Alkaloids in Cultural and Wild Anisodus tanguticus Simultaneous determination of scopolamine hydrobromide, atropine sulfate, ephedrine hydrochloride and pseudoephedrine hydrochloride in Zhichuanling oral liquid with HPLC Plant Regeneration from Hairy Roots of Datura arborea L. Submergence(Fermentation)Culture of Anisodus acutanguhts Cells and Identification of Hyoscyamine and Scopolamine in the Cultured Ceils Optimization for formulation matrix proportion of Bitongning Patch by uniform design Effects of total alkaloids from Rhizoma Corydalis Decumbentis on scopolamine and D-galactose-induced learning and memory impairment in rats. Effects of Ding Zhi Pills on the Scopolamine-induced Impairment ot Passive Avoidance in Rats Metabolic Engineering of Tropane Alkaloid Biosynthesis in Plants Analysis of scopolamine and its metabolites in homogenate of rat liver by liquid chromatography-tandem mass spectrometry