Twelve previously unidentified triterpenoids(1–12)were isolated from the dichloromethane extract of Alisma orientale(A.orientale).Among these compounds,1 and 2 exhibited a rare 6/6/7/5 tetracyclic ring system,and com...Twelve previously unidentified triterpenoids(1–12)were isolated from the dichloromethane extract of Alisma orientale(A.orientale).Among these compounds,1 and 2 exhibited a rare 6/6/7/5 tetracyclic ring system,and compound 3 was lanostane,isolated from A.orientale for the first time.The structures,including relative and absolute configurations,were determined through spectroscopic methods,electronic circular dichroism(ECD),Mo2(OAc)4-induced ECD,and single-crystal X-ray diffraction.The anti-pulmonary fibrosis(PF)activity of isolated compounds was evaluated in vitro.The results demonstrated that compounds 1–6 and 11 ameliorated transforming growth factorβ1(TGF-β1)-induced cell damage at 10μmol·L−1(P<0.01).展开更多
Objective:To establish a gas chromatography-mass spectrometry(GC-MS)method for the determination of volatile components in different prepared products of Alisma purpurea.Methods:The volatile components were determined...Objective:To establish a gas chromatography-mass spectrometry(GC-MS)method for the determination of volatile components in different prepared products of Alisma purpurea.Methods:The volatile components were determined by GC-MS,and the types and relative contents of volatile components were compared in 4 kinds of processed products.Result:The main volatile components of 30 kinds of different products from Zelica were analyzed and identified,which were mainly sesquiterpenes,ketones and alcohols,mainly Pogostol,olive,guaiacene,caryophyllene and so on.Conclusion:There are differences in the types and relative contents of volatile components in different products of Alisma platyphylla,in order to provide a basis for improving the quality standards of different products of Alisma platyphylla.展开更多
A new triterpenoid,named 11,25-aahydro-alisol E was isolated from the rhizomes of Alisma orientalis together with nine known compounds.Their structures were elucidated by spectroscopic methods.Some compounds showed we...A new triterpenoid,named 11,25-aahydro-alisol E was isolated from the rhizomes of Alisma orientalis together with nine known compounds.Their structures were elucidated by spectroscopic methods.Some compounds showed weak anti-tumor activities in cytotoxic experiments.展开更多
A rapid, simple and practical high-performance liquid chromatography method coupled with diode array detector（HPLC–DAD） was developed to evaluate the quality of Alisma orientale（Sam.） Juz.through a simultaneous d...A rapid, simple and practical high-performance liquid chromatography method coupled with diode array detector（HPLC–DAD） was developed to evaluate the quality of Alisma orientale（Sam.） Juz.through a simultaneous determination of four major active triterpenes using a single standard to determine the multi-components（SSDMCs）. Alisol B 23-acetate was selected as the reference compound for calculating the relative response factors. All calibration curves showed good linearity（R240.9998） within test ranges. RSDs for intra- and inter-day of four analytes were less than 3.6% and 2.3%; the overall recovery was 92.1–110.2%（SSDMC）. The proposed method was successfully applied to quantify the four components in 20 samples from different localities in China. Moreover, significant variations were demonstrated in the content of these compounds. In addition, hierarchical clustering analysis（HCA） and principal components analysis（PCA） were performed to differentiate and classify the samples based on the contents of Alisol C 23-acetate, Alisol A, Alisol A 24-acetate and Alisol B 23-acetate. This simple,rapid, low-cost and reliable HPLC–DAD method using SSDMC is suitable for routine quantitative analysis and quality control of A. orientale（Sam.） Juz.展开更多
A sensitive and reliable ultra fast liquid chromatography tandem mass spectrometry(UFLC-MS/MS)method has been developed and validated for simultaneous quantitation of alisol A and alisol B 23-acetate from Alisma orien...A sensitive and reliable ultra fast liquid chromatography tandem mass spectrometry(UFLC-MS/MS)method has been developed and validated for simultaneous quantitation of alisol A and alisol B 23-acetate from Alisma orientale(Sam.)Juz.in rat plasma using diazepam as an internal standard(IS).The plasma samples were extracted by liquideliquid extraction with methyl tert-butyl ether and separated on a Venusil MP C18 column(100 mm×2.1 mm,3.0 mm)(Venusil,China)using gradient elution with the mobile phase consisting of methanol and 0.1%acetic acid in water at a flow rate of 0.4 ml/min.The two analytes were monitored with positive electrospray ionization by multiple reaction monitoring mode(MRM).The lower limit of quantitation was 5.00 ng/ml for alisol A and 5.00 ng/ml for alisol B 23-acetate.The calibration curves were linear in the range of 5.00 e2500 ng/ml for alisol A and 5e2500 ng/ml for alisol B 23-acetate.The mean extraction recoveries were above 63.8%for alisol A and 68.0%for alisol B 23-acetate from biological matrixes.Both intra-day and inter-day precision and accuracy of analytes were well within acceptance criteria(15%).The validated method was successfully applied to the pharmacokinetic study of alisol A and alisol B 23-acetate in rat plasma after oral administration of alcohol extract of Alismatis Rhizoma.展开更多
Background:Atherosclerosis(AS)has been a potentially life-threatening disease worldwide.Alisma decoction(AD)is a famous Chinese formula in treating AS.However,the active components and potential mechanisms remain unkn...Background:Atherosclerosis(AS)has been a potentially life-threatening disease worldwide.Alisma decoction(AD)is a famous Chinese formula in treating AS.However,the active components and potential mechanisms remain unknown.Methods:In this study,the active compositions of AD were analyzed by ultrahigh-performance liquid chromatography quadrupole-orbitrap high-resolution mass spectrometry(UHPLC-Q-Orbitrap-HRMS).The putative targets were predicted and interpreted by a series of bio-informative tools such as Venn,STRING,NetworkAnalyzer,ClusterMarker,and DAVID.Finally,the results were validated by molecular docking using AutoDock.Results:The results showed that alisol A,alisol B,23-o-Acetylalisol B,atractylenolideⅢand atractylenolideⅡwere the major compositions in AD.Thirty targets mainly distributed in three gene clusters were obtained after topological and cluster analysis.KEGG and GO analyses showed that genes in cluster 1 mainly participated in adipocytokine signaling pathway and played an important role in lipid metabolism,while genes in cluster 2 had regulatory actions via cAMP signaling pathway and may protect vascular function from AS,and genes in cluster 3 were closely related to inflammation.Furthermore,RXRA,AGT and CXCL8,the central gene of cluster 1,2 and 3,were verified to be strong binding with some major compositions in AD.Conclusion:The possible mechanisms of AD in the treatment of AS may be closely correlated with the regulation of lipid metabolism,vascular physiology and inflammation.Our study provided a new insight into the anti-AS effect of AD,but more pharmacological experiments should be performed for verification in the future.展开更多
Twenty-one protostane-type triterpenoids with diverse structures, including nine new compounds(1 e9), were isolated from the of Alisma plantago-aquatica Linn. Structurally, alisolides A-F(1 e6), composed of an oxole g...Twenty-one protostane-type triterpenoids with diverse structures, including nine new compounds(1 e9), were isolated from the of Alisma plantago-aquatica Linn. Structurally, alisolides A-F(1 e6), composed of an oxole group coupled to a five-membered ring, represent unusual C-17 spirost protostane-type triterpenoids. Alisolide H(8) is a novel triterpenoid with an unreported endoperoxide bridge. Alisolide I(9) represents the first example of 23,24-acetal triterpenoid. Their structures were elucidated based on spectroscopic analysis, wherein the absolute configurations of 4-6, 8 were further confirmed by the Mo2(OAc)4-induced ECD method. Furthermore, all isolates were evaluated for their inhibitory effects on LPS-induced NO production in Caco-2 cells, and all the compounds showed remarkable inhibitory activities, with IC50 values in the range of 0.76 e38.20 mmol/L.展开更多
基金supported by the Central Government Guides the Development of Local Science and Technology(No.14104349).
文摘Twelve previously unidentified triterpenoids(1–12)were isolated from the dichloromethane extract of Alisma orientale(A.orientale).Among these compounds,1 and 2 exhibited a rare 6/6/7/5 tetracyclic ring system,and compound 3 was lanostane,isolated from A.orientale for the first time.The structures,including relative and absolute configurations,were determined through spectroscopic methods,electronic circular dichroism(ECD),Mo2(OAc)4-induced ECD,and single-crystal X-ray diffraction.The anti-pulmonary fibrosis(PF)activity of isolated compounds was evaluated in vitro.The results demonstrated that compounds 1–6 and 11 ameliorated transforming growth factorβ1(TGF-β1)-induced cell damage at 10μmol·L−1(P<0.01).
文摘Objective:To establish a gas chromatography-mass spectrometry(GC-MS)method for the determination of volatile components in different prepared products of Alisma purpurea.Methods:The volatile components were determined by GC-MS,and the types and relative contents of volatile components were compared in 4 kinds of processed products.Result:The main volatile components of 30 kinds of different products from Zelica were analyzed and identified,which were mainly sesquiterpenes,ketones and alcohols,mainly Pogostol,olive,guaiacene,caryophyllene and so on.Conclusion:There are differences in the types and relative contents of volatile components in different products of Alisma platyphylla,in order to provide a basis for improving the quality standards of different products of Alisma platyphylla.
文摘A new triterpenoid,named 11,25-aahydro-alisol E was isolated from the rhizomes of Alisma orientalis together with nine known compounds.Their structures were elucidated by spectroscopic methods.Some compounds showed weak anti-tumor activities in cytotoxic experiments.
基金financially supported by Liaoning Innovative Research Team in University (LNIRT, Grant no.LT2013022)
文摘A rapid, simple and practical high-performance liquid chromatography method coupled with diode array detector（HPLC–DAD） was developed to evaluate the quality of Alisma orientale（Sam.） Juz.through a simultaneous determination of four major active triterpenes using a single standard to determine the multi-components（SSDMCs）. Alisol B 23-acetate was selected as the reference compound for calculating the relative response factors. All calibration curves showed good linearity（R240.9998） within test ranges. RSDs for intra- and inter-day of four analytes were less than 3.6% and 2.3%; the overall recovery was 92.1–110.2%（SSDMC）. The proposed method was successfully applied to quantify the four components in 20 samples from different localities in China. Moreover, significant variations were demonstrated in the content of these compounds. In addition, hierarchical clustering analysis（HCA） and principal components analysis（PCA） were performed to differentiate and classify the samples based on the contents of Alisol C 23-acetate, Alisol A, Alisol A 24-acetate and Alisol B 23-acetate. This simple,rapid, low-cost and reliable HPLC–DAD method using SSDMC is suitable for routine quantitative analysis and quality control of A. orientale（Sam.） Juz.
基金This study was financially supported by Liaoning Innovative Research Team in University(LNIRT,Grant No.LT2013022).
文摘A sensitive and reliable ultra fast liquid chromatography tandem mass spectrometry(UFLC-MS/MS)method has been developed and validated for simultaneous quantitation of alisol A and alisol B 23-acetate from Alisma orientale(Sam.)Juz.in rat plasma using diazepam as an internal standard(IS).The plasma samples were extracted by liquideliquid extraction with methyl tert-butyl ether and separated on a Venusil MP C18 column(100 mm×2.1 mm,3.0 mm)(Venusil,China)using gradient elution with the mobile phase consisting of methanol and 0.1%acetic acid in water at a flow rate of 0.4 ml/min.The two analytes were monitored with positive electrospray ionization by multiple reaction monitoring mode(MRM).The lower limit of quantitation was 5.00 ng/ml for alisol A and 5.00 ng/ml for alisol B 23-acetate.The calibration curves were linear in the range of 5.00 e2500 ng/ml for alisol A and 5e2500 ng/ml for alisol B 23-acetate.The mean extraction recoveries were above 63.8%for alisol A and 68.0%for alisol B 23-acetate from biological matrixes.Both intra-day and inter-day precision and accuracy of analytes were well within acceptance criteria(15%).The validated method was successfully applied to the pharmacokinetic study of alisol A and alisol B 23-acetate in rat plasma after oral administration of alcohol extract of Alismatis Rhizoma.
基金This work was supported by National Natural Science Foundation of China,Grant/Award Numbers:82004103Natural Science Foundation of Guangdong Province,Grant/Award Numbers:2019A1515011560+3 种基金Open fund of Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications,Liaoning University of Traditional Chinese Medicine,Grant/Award Numbers:zyzx1901Scientific Research Fund of People's Hospital of Yangjiang,Grant/Award Numbers:G2020001 and G2020002Scientific Research Project of Guangdong Provincial Bureau of Traditional Chinese Medicine:Grant/Award Numbers:20201392,20211436 and 20212269Science and Technology Program of Yangjiang Science and Technology Bureau,Grant/Award Numbers:2019.50.25,Science and Technology Program of Yangjiang Health Bureau,Grant/Award Numbers:2019050.
文摘Background:Atherosclerosis(AS)has been a potentially life-threatening disease worldwide.Alisma decoction(AD)is a famous Chinese formula in treating AS.However,the active components and potential mechanisms remain unknown.Methods:In this study,the active compositions of AD were analyzed by ultrahigh-performance liquid chromatography quadrupole-orbitrap high-resolution mass spectrometry(UHPLC-Q-Orbitrap-HRMS).The putative targets were predicted and interpreted by a series of bio-informative tools such as Venn,STRING,NetworkAnalyzer,ClusterMarker,and DAVID.Finally,the results were validated by molecular docking using AutoDock.Results:The results showed that alisol A,alisol B,23-o-Acetylalisol B,atractylenolideⅢand atractylenolideⅡwere the major compositions in AD.Thirty targets mainly distributed in three gene clusters were obtained after topological and cluster analysis.KEGG and GO analyses showed that genes in cluster 1 mainly participated in adipocytokine signaling pathway and played an important role in lipid metabolism,while genes in cluster 2 had regulatory actions via cAMP signaling pathway and may protect vascular function from AS,and genes in cluster 3 were closely related to inflammation.Furthermore,RXRA,AGT and CXCL8,the central gene of cluster 1,2 and 3,were verified to be strong binding with some major compositions in AD.Conclusion:The possible mechanisms of AD in the treatment of AS may be closely correlated with the regulation of lipid metabolism,vascular physiology and inflammation.Our study provided a new insight into the anti-AS effect of AD,but more pharmacological experiments should be performed for verification in the future.
基金The financial support from the National Standardization of Traditional Chinese Medicine Project(ZYBZH-C-SH-49,China)the National Natural Science Foundation of China(No.81530095)+1 种基金National Standardization Program for Chinese Medicine(ZYBZH-K-LN-01,China)Shanghai Committee of Science and Technology(16DZ0500800,China)are gratefully acknowledged
文摘Twenty-one protostane-type triterpenoids with diverse structures, including nine new compounds(1 e9), were isolated from the of Alisma plantago-aquatica Linn. Structurally, alisolides A-F(1 e6), composed of an oxole group coupled to a five-membered ring, represent unusual C-17 spirost protostane-type triterpenoids. Alisolide H(8) is a novel triterpenoid with an unreported endoperoxide bridge. Alisolide I(9) represents the first example of 23,24-acetal triterpenoid. Their structures were elucidated based on spectroscopic analysis, wherein the absolute configurations of 4-6, 8 were further confirmed by the Mo2(OAc)4-induced ECD method. Furthermore, all isolates were evaluated for their inhibitory effects on LPS-induced NO production in Caco-2 cells, and all the compounds showed remarkable inhibitory activities, with IC50 values in the range of 0.76 e38.20 mmol/L.
