摘要
OBJECTIVE:To investigate the relationship between the cardiotonic activity of Fuzi(Radix Aconiti Lateralis Preparata,RALP)and its fingerprint determined by liquid chromatography-mass spectrometry(LC-MS).METHODS:First,the fingerprints of six processed products of RALP were established by high performance liquid chromatography quadrupole time-of-flight mass spectrometry(HPLC-Q-TOF-MS)followed by analysis of the principal component of the relative peak area of its common peaks.Next,the scores of the first five principal components were used as input for an artificial neural network(ANN).Additionally,the therapeutic effect of RALP was assessed by measuring the hemodynamic indexes of heart failure model rats.Subsequently,fluorescence semi-quantitative polymerase chain reaction and an enzyme-linked immunosorbent assay kit were used to determine the effects of RALP-processed products on the serum levels of noradrenaline(NA),angiotensin-Ⅰ(Ang-Ⅰ),and the expression ofβ-norepinephrine receptor m RNA(β-NRm)in the rat cardiac tissues.P<0.05 was used as the output of the ANN.Finally,a network was constructed to display the relationship between the LC-MS fingerprints and the cardiotonic activity of the RALP-processed products.RESULTS:Several types of RALPs can improve diastolic function,systolic function and heart rate.On the basis of the findings from the principal component analysis(PCA)of 16 common peaks of fingerprints of six RALP-processed products,it was revealed that the first five principal components may include 100%of the information of the original data.As observed from the multilayer perceptron neural network analysis,principal component 4 presented with the strongest effects on serum levels of NA and Ang-Ⅰin rats,while principal component1 exerted the greatest effect onβ-NRm expression in cardiac tissue.CONCLUSION:The key findings obtained from this study indicated that the network constructed by the PCA-ANN may predict pharmacodynamic effects of the main ingredients of Traditional Chinese Medicine(TCM).This method may serve as a new approach to identify the relationship between LC-MS fingerprints and the pharmacodynamic effects of TCM ingredients.
基金
Supported by the National Natural Science Foundation of China:Study on Processing Mechanism of Jinger Juice-processed Rhizoma Coptidis Based on Nature,Pharmaceutical Effects and Material Base(No.81260643)
Study on Mechanism Of Difference Of Ginger Juice Made From Zingiberis Rhizoma Recens and Zingiberis Rhizoma Relating to Processing(No.81460605)
Study on the Mechanism of The Change of Nature of Aconitum Processed with Ginger Juice Based on the Theory of’Treating the Drug Being Hot Nature with Hot-natured Assistant to Strength the Hot Nature of The Drug’(No.81660663)
Jiangxi Provincial Special Fund for Innovation of Postgraduates in 2019:Efficacy Evaluation of Traditional Jianchangbang Yinfupian and Yangfupian in the Treatment of Male and Female Yang-deficiency Syndrome(No.YC2019-B112)。
