Panax japonicus and its approximation varieties,such as Rhizoma Panacis Majoris and Panax japonicus C. A. Mey. var.major (Burk.) C.Y. Wu et K.M. Feng belong to Panax,which are less commonly used traditional Chinese ...Panax japonicus and its approximation varieties,such as Rhizoma Panacis Majoris and Panax japonicus C. A. Mey. var.major (Burk.) C.Y. Wu et K.M. Feng belong to Panax,which are less commonly used traditional Chinese medicine. Because of similar traits and effectiveness,they were always used as one type of medicine for a long time. Aiming at this phenomenon,the chemical composition and contents of P. japonicus and its approximation varieties from different area were compared in order to provide a chemical basis for clarifying the classification of the genus.展开更多
Water-soluble polysaccharides were prepared from Panax japonicus by hot water extraction and ethanol precipitation.The polysaccharides were further purified by ion exchange chromatography to obtain neutral and acidic ...Water-soluble polysaccharides were prepared from Panax japonicus by hot water extraction and ethanol precipitation.The polysaccharides were further purified by ion exchange chromatography to obtain neutral and acidic polysaccharides.The neutral polysaccharide fraction mainly contained Glc(90.2%),which was a glucan fraction.The acidic polysaccharide fraction mainly contained GalA(43.6%),Gal(21.7%),and Ara(15.4%),with a degree of methyl-esterification of 20.3%,which was a pectic polysaccharide.The acidic polysaccharide of Panax japonicus could effectively inhibit the replication of human seasonal influenza virus H1N1 and canine influenza virus H3N2 in MDCK cells and A549 cells and significantly reduce the virus titer in infected cells.It also effectively inhibited the number of infected cells of the SARS-CoV-2 South Africa strain and the Omicron strain.The acid polysaccharide of Panax japonicus showed good efficacy against influenza virus and COVID-19 infection,which could be used as a potential antiviral candidate drug molecule in the future.展开更多
Objective Tu Jia ethnomedicine is a unique medical system inherited and adhibited by Tu Jia minority living in central-south China. Panax japonicus C. A. Mey.(Bai San Qi,白三七) is recognized as an effective and rare ...Objective Tu Jia ethnomedicine is a unique medical system inherited and adhibited by Tu Jia minority living in central-south China. Panax japonicus C. A. Mey.(Bai San Qi,白三七) is recognized as an effective and rare medicinal plant to treat weakness, fatigue and rheumatism in Tu Jia ethnomedicine. This paper is to discover more substance evidence for the application of Tu Jia ethnomedicine. Methods Column chromatography and preparative high performance liquid chromatography (HPLC) was applied for isolation and purification;1H-NMR, 13C-NMR, 1H-1H COSY, HSQC and HMBC NMR spectra were applied for structure identification;Methyl thiazolyl tetrazolim (MTT) assays were applied for cytotoxicity evaluation. Results Totally 12 known compounds were isolated by column chromatography and preparative HPLC from rhizomes of Panax japonicus C. A. Mey.(Bai San Qi,白三七). Structures of these compounds were identified by their NMR spectra. All the 12 compounds were triterpenoid saponins. Five of them were oleanolic acid type, and the remaining 7 were dammarane type. Eleven compounds were assayed for their cytotoxic activity against Hep G2 human liver cancer cell lines and BGC-823 human gastric cancer cell lines. Three of the 11 showed relatively dominant cytotoxicity against these cell lines. Conclusions A total of 12 known compounds have been identified from Panax japonicus C. A. Mey.(Bai San Qi,白三七);NMR spectra of compounds with similar skeletons showed regular characteristics;3 compounds showed relatively dominant cytotoxicity against Hep G2 and BGC-823 cancer cell lines, and the result can be valued as weak while setting the taxol as a positive control.展开更多
基金Supported by the National Natural Foundation of China(30873383)~~
文摘Panax japonicus and its approximation varieties,such as Rhizoma Panacis Majoris and Panax japonicus C. A. Mey. var.major (Burk.) C.Y. Wu et K.M. Feng belong to Panax,which are less commonly used traditional Chinese medicine. Because of similar traits and effectiveness,they were always used as one type of medicine for a long time. Aiming at this phenomenon,the chemical composition and contents of P. japonicus and its approximation varieties from different area were compared in order to provide a chemical basis for clarifying the classification of the genus.
基金supported by National Key Research and Development Program of China(2023YFC0871100)
文摘Water-soluble polysaccharides were prepared from Panax japonicus by hot water extraction and ethanol precipitation.The polysaccharides were further purified by ion exchange chromatography to obtain neutral and acidic polysaccharides.The neutral polysaccharide fraction mainly contained Glc(90.2%),which was a glucan fraction.The acidic polysaccharide fraction mainly contained GalA(43.6%),Gal(21.7%),and Ara(15.4%),with a degree of methyl-esterification of 20.3%,which was a pectic polysaccharide.The acidic polysaccharide of Panax japonicus could effectively inhibit the replication of human seasonal influenza virus H1N1 and canine influenza virus H3N2 in MDCK cells and A549 cells and significantly reduce the virus titer in infected cells.It also effectively inhibited the number of infected cells of the SARS-CoV-2 South Africa strain and the Omicron strain.The acid polysaccharide of Panax japonicus showed good efficacy against influenza virus and COVID-19 infection,which could be used as a potential antiviral candidate drug molecule in the future.
基金the funding support from the National Natural Science Foundation of China (No. 81703819 and No. 81874369)Hunan Key Laboratory of Druggability and Preparation Modification for Traditional Chinese Medicine (No. 2017-04)+1 种基金Hunan Provincial Key Laboratory of Dong Medicine (No. 2015TP1020-02)Students Research Innovative Program of Hunan Province (No. 2018413)
文摘Objective Tu Jia ethnomedicine is a unique medical system inherited and adhibited by Tu Jia minority living in central-south China. Panax japonicus C. A. Mey.(Bai San Qi,白三七) is recognized as an effective and rare medicinal plant to treat weakness, fatigue and rheumatism in Tu Jia ethnomedicine. This paper is to discover more substance evidence for the application of Tu Jia ethnomedicine. Methods Column chromatography and preparative high performance liquid chromatography (HPLC) was applied for isolation and purification;1H-NMR, 13C-NMR, 1H-1H COSY, HSQC and HMBC NMR spectra were applied for structure identification;Methyl thiazolyl tetrazolim (MTT) assays were applied for cytotoxicity evaluation. Results Totally 12 known compounds were isolated by column chromatography and preparative HPLC from rhizomes of Panax japonicus C. A. Mey.(Bai San Qi,白三七). Structures of these compounds were identified by their NMR spectra. All the 12 compounds were triterpenoid saponins. Five of them were oleanolic acid type, and the remaining 7 were dammarane type. Eleven compounds were assayed for their cytotoxic activity against Hep G2 human liver cancer cell lines and BGC-823 human gastric cancer cell lines. Three of the 11 showed relatively dominant cytotoxicity against these cell lines. Conclusions A total of 12 known compounds have been identified from Panax japonicus C. A. Mey.(Bai San Qi,白三七);NMR spectra of compounds with similar skeletons showed regular characteristics;3 compounds showed relatively dominant cytotoxicity against Hep G2 and BGC-823 cancer cell lines, and the result can be valued as weak while setting the taxol as a positive control.