[Objective] This study aimed to investigate the trace elements in Rehman- nia glutinosa Libosch. by using principal component analysis and clustering analysis. [Method] Principal component analysis and clustering anal...[Objective] This study aimed to investigate the trace elements in Rehman- nia glutinosa Libosch. by using principal component analysis and clustering analysis. [Method] Principal component analysis and clustering analysis of R. glutinosa medicinal materials from different sources were conducted with contents of six trace elements as indices. [Result] The principal component analysis could comprehen- sively evaluate the quality of R. glutinosa samples with objective results which was consistent with the results of clustering analysis. [Conclusion] Principal component analysis and clustering analysis methods can be used for the quality evaluation of Chinese medicinal materials with multiple indices.展开更多
目的观察中药生地黄免煎颗粒对神经生长抑制因子Nogo-A蛋白表达的影响。方法将实验大鼠分为用药组、模型组和假手术组,采用生地黄免煎颗粒溶液灌胃的方式作用于MCAO模型大鼠,分别在造模后第3、7、14 d 3个时间点采用Western Blot方法观...目的观察中药生地黄免煎颗粒对神经生长抑制因子Nogo-A蛋白表达的影响。方法将实验大鼠分为用药组、模型组和假手术组,采用生地黄免煎颗粒溶液灌胃的方式作用于MCAO模型大鼠,分别在造模后第3、7、14 d 3个时间点采用Western Blot方法观察Nogo-A蛋白的表达。结果经MCAO造模造成脑缺血损伤之后,Nogo-A蛋白的表达出现升高趋势,且随时间呈现先上升后下降的趋势,在第7日表达最为活跃;MCAO造模后经生地黄免煎颗粒溶液灌胃干预以后,Nogo-A蛋白的表达水平在3个时间点上均较模型组降低,且呈现先升高后又缓慢恢复的趋势;相对于模型组,在造模后第14日,生地黄对Nogo-A蛋白的表达有明显的下调作用。结论生地黄免煎颗粒能够在一定程度上下调MCAO造模后引起的Nogo-A蛋白表达升高,有利于中枢神经缺血后的神经再生。展开更多
基金Supported by Fund of Sichuan Provincial Administration of traditional Chinese Medicine(2008-12)~~
文摘[Objective] This study aimed to investigate the trace elements in Rehman- nia glutinosa Libosch. by using principal component analysis and clustering analysis. [Method] Principal component analysis and clustering analysis of R. glutinosa medicinal materials from different sources were conducted with contents of six trace elements as indices. [Result] The principal component analysis could comprehen- sively evaluate the quality of R. glutinosa samples with objective results which was consistent with the results of clustering analysis. [Conclusion] Principal component analysis and clustering analysis methods can be used for the quality evaluation of Chinese medicinal materials with multiple indices.
文摘目的观察中药生地黄免煎颗粒对神经生长抑制因子Nogo-A蛋白表达的影响。方法将实验大鼠分为用药组、模型组和假手术组,采用生地黄免煎颗粒溶液灌胃的方式作用于MCAO模型大鼠,分别在造模后第3、7、14 d 3个时间点采用Western Blot方法观察Nogo-A蛋白的表达。结果经MCAO造模造成脑缺血损伤之后,Nogo-A蛋白的表达出现升高趋势,且随时间呈现先上升后下降的趋势,在第7日表达最为活跃;MCAO造模后经生地黄免煎颗粒溶液灌胃干预以后,Nogo-A蛋白的表达水平在3个时间点上均较模型组降低,且呈现先升高后又缓慢恢复的趋势;相对于模型组,在造模后第14日,生地黄对Nogo-A蛋白的表达有明显的下调作用。结论生地黄免煎颗粒能够在一定程度上下调MCAO造模后引起的Nogo-A蛋白表达升高,有利于中枢神经缺血后的神经再生。