目的:对当归四逆汤化学成分谱和延长小鼠凝血酶时间的药效进行相关谱效分析,寻找与当归四逆汤延长小鼠凝血酶时间药效显著相关的药效成分群。方法:采用正交投影偏最小二乘法(Orthogonal partial least squares,OPLS)对当归四逆汤HPLC图...目的:对当归四逆汤化学成分谱和延长小鼠凝血酶时间的药效进行相关谱效分析,寻找与当归四逆汤延长小鼠凝血酶时间药效显著相关的药效成分群。方法:采用正交投影偏最小二乘法(Orthogonal partial least squares,OPLS)对当归四逆汤HPLC图谱数据和凝血酶时间药效数据之间的内在联系进行谱效分析,根据变异权重参数值(Variable importance in projection,VIP)来辨识显著活性成分,并通过高效液相色谱法对相应的活性成分进行单味药材的归属及鉴定。结果:确定了17个对延长凝血酶时间贡献较大的色谱峰,经归属,有6个峰来自于当归,6个峰来自于桂枝,5个峰来自于甘草,5个峰来自于白芍,当归四逆汤中的当归、桂枝、白芍、甘草对延长凝血酶时间贡献较大。从17个色谱峰中鉴定出6个成分,分别为阿魏酸、肉桂酸、芍药苷、甘草酸、甘草苷、异甘草苷。结论:OPLS可用于复方中活性成分群的发现,为解释中药复方多成分协同作用及开发与药效相关的质量控制方法提供科学依据。展开更多
The chemical composition of Zanthoxylum bungeanum（Z bungeanum） essential oi1（39 batches） was analyzed by gas chromatography-mass spectrometry（GC-MS） analysis（23 ingredients）, and the antitumor activity against...The chemical composition of Zanthoxylum bungeanum（Z bungeanum） essential oi1（39 batches） was analyzed by gas chromatography-mass spectrometry（GC-MS） analysis（23 ingredients）, and the antitumor activity against HeLa cells was detected via the MTT[3-（4,5-dimethylthiazol-2-yl）-2,5-diphenyltetrazolium bromide] assay. Two composition-activity relationship（CAR） models, generalized regression neural network（GRNN） and support vector regression（SVR） were respectively used to calculate the mean impact value（MIV） so as to identify bioactive com- pounds. Among them 9 ingredients（peaks 4, 15, 7, 8, 13, 3, 16, 9 and 11） were selected due to their high absolute MIVs. All of them have been confirmed with potential antitumor activity by previous researches. The CAR model combined with MIV was expected to be a credible tool for the active compound identification from herbs.展开更多
文摘目的:对当归四逆汤化学成分谱和延长小鼠凝血酶时间的药效进行相关谱效分析,寻找与当归四逆汤延长小鼠凝血酶时间药效显著相关的药效成分群。方法:采用正交投影偏最小二乘法(Orthogonal partial least squares,OPLS)对当归四逆汤HPLC图谱数据和凝血酶时间药效数据之间的内在联系进行谱效分析,根据变异权重参数值(Variable importance in projection,VIP)来辨识显著活性成分,并通过高效液相色谱法对相应的活性成分进行单味药材的归属及鉴定。结果:确定了17个对延长凝血酶时间贡献较大的色谱峰,经归属,有6个峰来自于当归,6个峰来自于桂枝,5个峰来自于甘草,5个峰来自于白芍,当归四逆汤中的当归、桂枝、白芍、甘草对延长凝血酶时间贡献较大。从17个色谱峰中鉴定出6个成分,分别为阿魏酸、肉桂酸、芍药苷、甘草酸、甘草苷、异甘草苷。结论:OPLS可用于复方中活性成分群的发现,为解释中药复方多成分协同作用及开发与药效相关的质量控制方法提供科学依据。
基金the National Natural Science Foundation of China
文摘The chemical composition of Zanthoxylum bungeanum（Z bungeanum） essential oi1（39 batches） was analyzed by gas chromatography-mass spectrometry（GC-MS） analysis（23 ingredients）, and the antitumor activity against HeLa cells was detected via the MTT[3-（4,5-dimethylthiazol-2-yl）-2,5-diphenyltetrazolium bromide] assay. Two composition-activity relationship（CAR） models, generalized regression neural network（GRNN） and support vector regression（SVR） were respectively used to calculate the mean impact value（MIV） so as to identify bioactive com- pounds. Among them 9 ingredients（peaks 4, 15, 7, 8, 13, 3, 16, 9 and 11） were selected due to their high absolute MIVs. All of them have been confirmed with potential antitumor activity by previous researches. The CAR model combined with MIV was expected to be a credible tool for the active compound identification from herbs.
