Pharmacognostical Study on Stems and Leaves of Campsis grandiflora(Thunb.) Schum.

[Objectives] To provide basis for identification,development and use of Campsis grandiflora( Thunb.) Schum. [Methods]Original plants,traits,microstructures and UV spectra were used for identification. [Results]For the first time,the pharmacognostical characteristics were elaborated about stems and leaves of Campsis grandiflora( Thunb.) Schum. [Conclusions] This study is expected to provide basis for pharmacognostical quality standard of stems and leaves of Campsis grandiflora( Thunb.) Schum.

凌霄属植物根、茎、叶化学成分及药理作用的研究进展

通过查阅、分析和总结国内外相关文献,综述了凌霄属植物根、茎、叶化学成分及药理作用的研究进展。主要化学成分为五环三萜、环烯醚萜、黄酮及色原酮、香豆素、苯丙素苷、生物碱、挥发油,具有抑制血小板凝集、胰岛素模仿和胰岛素增敏活性、自由基清除话性、灭虫和灭昆虫活性等药理作用。本文结果可为凌霄属植物根、茎、叶的进一步研究和开发利用提供参考。

凌霄花提取物抗凝血活性部位研究

目的研究凌霄花提取物抗凝血作用,确定凌霄花抗凝血活性部位。方法通过血浆复钙实验测定小鼠血浆复钙时间(PRT)和断尾法测定小鼠出血时间(BT)实验,比较凌霄花不同提取物的药效活性。结果凌霄花水提物、醇提物及水提醇沉上清液均具有抗凝血活性;醇提物萃取后正丁醇层药效最显著;水提醇沉上清液过大孔树脂后10%乙醇部位药效最显著。结论凌霄花抗凝血活性主要存在于极性较大部位。