Objective:Based on metabonomics technology of high-performance liquid chromatography-mass spectrometry(HPLC-MS/MS)and hydrogen nuclear magnetic resonance spectroscopy(^(1)H NMR),the pharmacokinetic characteristics and...Objective:Based on metabonomics technology of high-performance liquid chromatography-mass spectrometry(HPLC-MS/MS)and hydrogen nuclear magnetic resonance spectroscopy(^(1)H NMR),the pharmacokinetic characteristics and therapeutic mechanism of Rhei Radix et Rhizoma(RhRR,Dahuang in Chinese),Eupolyphaga Steleophaga(EuS,Tubiechong in Chinese)combined with RhRR acting on acute liver injury were explored.Methods:Models of acute liver injury were established,and the pharmacokinetic methods of five components of RhRR-EuS in rats were found by HPLC-MS/MS.The liver tissues of different groups of mice were analyzed by ^(1)H NMR spectroscopy combined with multivariate statistical analysis to investigate the metabolomics of RhRR-EuS and RhRR.Results:Pharmacokinetic results showed there were different levels of bimodal phenomenon in different groups,and the absorption of free anthraquinone in RhRR increased after compatibility with EuS.In addition,the pathological state of acute liver injury in rats can selectively promote the absorption of emodin,chrysophanol,physcion and aloe emodin.Through 15 differential metabolites in the liver tissue of acute liver injury mice,it was revealed that RhRR-EuS and RhRR could protect the liver injury by regulating the metabolism of glutamine and glutamic acid,alanine,aspartic acid and glutamic acid,and phosphoinositide.However,the regulation of RhRR was weaker than that of RhRR-EuS.Conclusion:For the first time,we studied the pharmacokinetics and metabolomics differences of RhRREuS and RhRR in rats and mice with acute liver injury,in order to provide theoretical reference for clinical treatment of liver disease by DHZCP.展开更多
目的确定土鳖虫水溶性蛋白质提取最佳工艺条件。方法在单因素实验基础上,以土鳖虫蛋白质提取率(Y)为响应值,应用响应面法对土鳖虫蛋白质提取工艺进行优化。结果依据统计模型发现液料比、提取时间、提取液p H 3个要素均对土鳖虫蛋白质提...目的确定土鳖虫水溶性蛋白质提取最佳工艺条件。方法在单因素实验基础上,以土鳖虫蛋白质提取率(Y)为响应值,应用响应面法对土鳖虫蛋白质提取工艺进行优化。结果依据统计模型发现液料比、提取时间、提取液p H 3个要素均对土鳖虫蛋白质提取率影响明显。由响应面三维图及等值图分析,得到土鳖虫蛋白质提取率较高的最佳方案为液料比40:1,提取时间20 min,提取液p H 9。结论验证实验所得蛋白质提取率为11.06%,与模型预测值十分接近,运用响应面法优化土鳖虫蛋白质提取条件切实可行。展开更多
目的建立高效毛细管电泳(HPCE)法研究土鳖虫Eupolyphaga seu Steleophaga镇痛作用与其指纹图谱的关系。方法分析采用熔融硅胶毛细管(75μm,30 cm×21 cm);10 mmol/L硼砂(p H=9.7)为缓冲液;进样电压5 k V10 s;分离电压15 k V;检测波...目的建立高效毛细管电泳(HPCE)法研究土鳖虫Eupolyphaga seu Steleophaga镇痛作用与其指纹图谱的关系。方法分析采用熔融硅胶毛细管(75μm,30 cm×21 cm);10 mmol/L硼砂(p H=9.7)为缓冲液;进样电压5 k V10 s;分离电压15 k V;检测波长214 nm。然后,通过醋酸致小鼠扭体实验来探索各组分对镇痛作用的影响。结果土鳖虫指纹图谱中有7个特征峰,其中有2个为尿囊素与氯氮卓。两者的含有量与土鳖虫的镇痛作用成正比关系。结论各批次土鳖虫样品间存在差异,其镇痛作用可用于质量评价。展开更多
基金supported by the Key R&D Plan of Hubei Province for local special support in the field of general health(No.2022BCE066).
文摘Objective:Based on metabonomics technology of high-performance liquid chromatography-mass spectrometry(HPLC-MS/MS)and hydrogen nuclear magnetic resonance spectroscopy(^(1)H NMR),the pharmacokinetic characteristics and therapeutic mechanism of Rhei Radix et Rhizoma(RhRR,Dahuang in Chinese),Eupolyphaga Steleophaga(EuS,Tubiechong in Chinese)combined with RhRR acting on acute liver injury were explored.Methods:Models of acute liver injury were established,and the pharmacokinetic methods of five components of RhRR-EuS in rats were found by HPLC-MS/MS.The liver tissues of different groups of mice were analyzed by ^(1)H NMR spectroscopy combined with multivariate statistical analysis to investigate the metabolomics of RhRR-EuS and RhRR.Results:Pharmacokinetic results showed there were different levels of bimodal phenomenon in different groups,and the absorption of free anthraquinone in RhRR increased after compatibility with EuS.In addition,the pathological state of acute liver injury in rats can selectively promote the absorption of emodin,chrysophanol,physcion and aloe emodin.Through 15 differential metabolites in the liver tissue of acute liver injury mice,it was revealed that RhRR-EuS and RhRR could protect the liver injury by regulating the metabolism of glutamine and glutamic acid,alanine,aspartic acid and glutamic acid,and phosphoinositide.However,the regulation of RhRR was weaker than that of RhRR-EuS.Conclusion:For the first time,we studied the pharmacokinetics and metabolomics differences of RhRREuS and RhRR in rats and mice with acute liver injury,in order to provide theoretical reference for clinical treatment of liver disease by DHZCP.
文摘目的确定土鳖虫水溶性蛋白质提取最佳工艺条件。方法在单因素实验基础上,以土鳖虫蛋白质提取率(Y)为响应值,应用响应面法对土鳖虫蛋白质提取工艺进行优化。结果依据统计模型发现液料比、提取时间、提取液p H 3个要素均对土鳖虫蛋白质提取率影响明显。由响应面三维图及等值图分析,得到土鳖虫蛋白质提取率较高的最佳方案为液料比40:1,提取时间20 min,提取液p H 9。结论验证实验所得蛋白质提取率为11.06%,与模型预测值十分接近,运用响应面法优化土鳖虫蛋白质提取条件切实可行。
文摘目的建立高效毛细管电泳(HPCE)法研究土鳖虫Eupolyphaga seu Steleophaga镇痛作用与其指纹图谱的关系。方法分析采用熔融硅胶毛细管(75μm,30 cm×21 cm);10 mmol/L硼砂(p H=9.7)为缓冲液;进样电压5 k V10 s;分离电压15 k V;检测波长214 nm。然后,通过醋酸致小鼠扭体实验来探索各组分对镇痛作用的影响。结果土鳖虫指纹图谱中有7个特征峰,其中有2个为尿囊素与氯氮卓。两者的含有量与土鳖虫的镇痛作用成正比关系。结论各批次土鳖虫样品间存在差异,其镇痛作用可用于质量评价。