Gynostemma pentaphyllum(G.pentaphyllum)is a traditional medicinal plant with medicinal and economic value.With in-depth research on the chemical compositions and pharmacological effects,the applications of G.pentaphyl...Gynostemma pentaphyllum(G.pentaphyllum)is a traditional medicinal plant with medicinal and economic value.With in-depth research on the chemical compositions and pharmacological effects,the applications of G.pentaphyllum have been expanded.G.pentaphyllum has the effects of clearing heat and detoxification,relieving cough and phlegm,nourishing heart,tranquilizing nerves,and can be used to treat gastroenteritis,tracheitis,pharyngitis,hyperlipidemia,and arteriosclerosis.It can also be used to alleviate symptoms such as migraines,insufficient sleep,and white hair.In recent years,G.pentaphyllum has also been used for clinical adjuvant treatment of various cancers.In this study,the chemical constituents and pharmacological effects on G.pentaphyllum in recent years were reviewed.This review could provide reference for further development and utilization of G.pentaphyllum.展开更多
One new dammarane-type triterpene saponin, named (20S)-3β,20,21-trihydroxydammar-24-ene 3-O[α-L- rhamnopyranosyl-(1→2)][β-D-xylopyranosyl(l→3)]-β-D-glucopyranoside (1), was isolated from the aerial parts of Gyno...One new dammarane-type triterpene saponin, named (20S)-3β,20,21-trihydroxydammar-24-ene 3-O[α-L- rhamnopyranosyl-(1→2)][β-D-xylopyranosyl(l→3)]-β-D-glucopyranoside (1), was isolated from the aerial parts of Gynostemma pentaphyllum (Thunb.) Makino. Its structural elucidation was accomplished mainly on the basis of the interrelation of spectroscopic methods, such as IR, HR-TOF-MS, NMR.展开更多
Gynostemma(G.) pentaphyllum(Cucurbitaceae) contains various bioactive gypenosides. Ethanol extract from G. pentaphyllum(GP-EX) has been shown to have ameliorative effects on the death of dopaminergic neurons in animal...Gynostemma(G.) pentaphyllum(Cucurbitaceae) contains various bioactive gypenosides. Ethanol extract from G. pentaphyllum(GP-EX) has been shown to have ameliorative effects on the death of dopaminergic neurons in animal models of Parkinson’s disease(PD) induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-and 6-hydroxydopamine. PD patients exhibit multiple symptoms, so PD-related research should combine neurotoxin models with genetic models. In the present study, we investigated the ameliorative effects of GP-EX, including gypenosides, on the cell death of dopaminergic neurons in the midbrain of A53 T α-synuclein transgenic mouse models of PD(A53 T). Both GP-EX and gypenosides at 50 mg/kg per day were orally administered to the A53 T mice for 20 weeks.α-Synuclein-immunopositive cells and α-synuclein phosphorylation were increased in the midbrain of A53 T mice, which was reduced following treatment with GP-EX. Treatment with GP-EX modulated the reduced phosphorylation of tyrosine hydroxylase, extracellular signal-regulated kinase(ERK1/2), Bcl-2-associated death promoter(Bad) at Ser112, and c-Jun N-terminal kinase(JNK1/2) due to α-synuclein overexpression. In the A53 T group, GP-EX treatment prolonged the latency of the step-through passive avoidance test and shortened the transfer latency of the elevated plus maze test. Gypenosides treatment exhibited the effects and efficacy similar to those of GP-EX. Taken together, GP-EX, including gypenosides, has ameliorative effects on dopaminergic neuronal cell death due to the overexpression of α-synuclein by modulating ERK1/2, Bad at Ser112, and JNK1/2 signaling in the midbrain of A53 T mouse model of PD. Further studies are needed to investigate GP-EX as a treatment for neurodegenerative synucleinopathies, including PD. This study was approved by the Animal Ethics Committee of Chungbuk National University(approval No. CBNUA-956-16-01) on September 21, 2016.展开更多
In this series,thirteen cancer patientswere treated with simple GynostemmaPentaphyllum Makino(绞股蓝),and 11cases treated with the Compound prescrip-tion of Gynostemma PentaphyllumMakino,with the other 16 cases treate...In this series,thirteen cancer patientswere treated with simple GynostemmaPentaphyllum Makino(绞股蓝),and 11cases treated with the Compound prescrip-tion of Gynostemma PentaphyllumMakino,with the other 16 cases treated withthe Compound prescription of RadixAstragali seu Hedysari as controls.LTT,IgG,IgA and lgM levels were assayed be-展开更多
The action of total flavones of Gynostemma pentaphyllum (Thunb) Mak (TFG) 60 mg/kg i.v. could prevent arrhythmias induced by drugs and myocardial ischemia were investigated. In anesthetized rats and guinea pigs. The r...The action of total flavones of Gynostemma pentaphyllum (Thunb) Mak (TFG) 60 mg/kg i.v. could prevent arrhythmias induced by drugs and myocardial ischemia were investigated. In anesthetized rats and guinea pigs. The results showed that in TFG group the duration of ventricular tachycardia (VT) induced by aconitine in rats was shortened (P<0 01) and the incidence of ventricular fibrillation (VF) and the mortality were decreased (P<0 01) respectively. The arrhythmias induced by i.v. BaCl 2 4 mg/kg in rats were immediately recovered to a normal sinus rhythm and VT induced by i.v. CaCl 2 130 mg/kg in rats was decreased by TFG i.v. TFG i.v. elevated the doses of i.v. strophanthin G to induce ectopic beats (EB), VT, VF and cardiac arrest (CA) in guinea pigs by 89%, 58%, 27%, and 28% (P<0 01) respectively. The incidence of VF induced by coronary artery ligation in rats was decreased (P<0 01), duration of EB, duraton of VT and VF decreased to 45%, 42% and 0% of the NS group respectively. The results suggest that TFG in dosage of 60 mg/kg might be useful for the prevention of VT and VF.展开更多
The anticancer activity of stevenleaf(SV)on the basis of cell viability,cell cycle,and apoptosis induction in HepG2 cancer cells were evaluated.SV controlled the growth of HepG2 cells with IC50 of 139.82μmol/L for 24...The anticancer activity of stevenleaf(SV)on the basis of cell viability,cell cycle,and apoptosis induction in HepG2 cancer cells were evaluated.SV controlled the growth of HepG2 cells with IC50 of 139.82μmol/L for 24 h,IC50 of 119.12μmol/L for 48 h and cell cycle arrested at G0/G1 phase,induced cell apoptosis and enhanced intracellular ROS generation.For cell cycle arrest,the mRNA expression levels of p21,p27 and p53 were up-regulated,while the expression levels of Cyclin A,Cyclin D1,Cyclin E and CDK1/2 were downregulated.SV efficiently up-regulated TNF R1,TRADD1 and FADD and down-regulated Caspase8 for cell death receptors;similarly,up-regulated Bax,Bak,Cytc,Apaf1,Caspase3 and Caspase9,and down-regulated Bcl2,Bcl xl and Bad for mitochondrial signal pathway.SV induced the mTOR-mediated cell apoptosis in HepG2 cells via activation of Akt and AMPK.The mechanistic explanation for the anticancer activity of SV as functional food can be derived from above results.展开更多
Two new cornpounds,saponin I and saponin II,were isolated from Gynostemma longipes f.Y.Wu.The struetures have been characterized on the basis of cbenical and speetroseopie evidence. ^-~.
A new dammarane saponin, Gycomoside I was isolated from Gynostemma compressum and elucidated as 1β, 3β, 12β,20(S), 26-pentahydroxy-dammar-24(25)-en-20(S)-O-β-D-glucopyranosyl6-β-D-glucopyranoside based on the che...A new dammarane saponin, Gycomoside I was isolated from Gynostemma compressum and elucidated as 1β, 3β, 12β,20(S), 26-pentahydroxy-dammar-24(25)-en-20(S)-O-β-D-glucopyranosyl6-β-D-glucopyranoside based on the chemical and spectral evidences.展开更多
Objective:To apply molecular docking and network pharmacology methods to predict the potential targets and signaling pathways of Gynostemma pentaphyllum-Scutellaria barbata drugs against colorectal cancer.Methods:The ...Objective:To apply molecular docking and network pharmacology methods to predict the potential targets and signaling pathways of Gynostemma pentaphyllum-Scutellaria barbata drugs against colorectal cancer.Methods:The main active compounds of Gynostemma pentaphyllum-Scutellaria barbata were searched through the TCMSP database,and the targets of the active ingredients of the two flavors of traditional Chinese medicine were screened;the relevant targets of colorectal cancer were obtained with the help of GeneCards,TTD,and CTD databases.The STRING database and Cytoscape 3.6.1 software were used to construct the drug-compound-target network and target protein interaction PPI network.The DAVID database was used to perform GO enrichment and KEGG pathway annotation analysis on core targets.Use AutoDock for molecular docking.Results:According to the screening conditions,15 active compounds and 116 drug targets of Gynostemma pentaphyllum and Scutellaria barbata were obtained,and 49 targets related to colorectal cancer.36 biological processes(BP)and 11 biologic processes were obtained by GO analysis.Cellular components(CC,cellular component),16 molecular functions(MF,molecular function),67 signal pathways were obtained through enrichment analysis of KEGG pathway.Conclusion:This study initially revealed that the active compounds of Gynostemma pentaphyllum-Scutellaria barbata pair through multiple components,multiple targets,and multiple pathways in preventing and treating colorectal cancer through molecular docking and network pharmacology.The molecular mechanisms and possible TP53,JUN,MAPK1,HSP90AA1,EGF,IL6,EGFR,PTGS2 and other signals are related to cancer signaling pathway,HIF-1 signaling pathway,pancreatic cancer,PI3K-Akt signaling pathway,inflammatory bowel disease,colorectal cancer,MicroRNA in cancer,p53 signaling pathway,etc.It will lay a theoretical foundation for the follow-up multi-target drug development,molecular biology experiments and related clinical research.展开更多
[Objectives]This study was conducted to investigate rapid propagation systems of Gynostemma pentaphyllum.[Methods]Ten different media were tested to select the optimal media for inducing callus proliferation,bud diffe...[Objectives]This study was conducted to investigate rapid propagation systems of Gynostemma pentaphyllum.[Methods]Ten different media were tested to select the optimal media for inducing callus proliferation,bud differentiation and rooting by using tissue culture technology,with G.pentaphyllum stem segments and leaves as explants.The stem segments of G.pentaphyllum were used as explants to directly induce rooting and germination,and appropriate media were selected.[Results]The optimum callus induction medium for G.pentaphyllum stem segments was MS+6-BA 1.0 mg/L+NAA 0.4 mg/L;the optimum rooting medium for stem callus was MS+NAA 0.2 mg/L;and the optimum germination medium for stem segments was MS+6-BA 1.0 mg/L.The optimum callus induction medium for G.pentaphyllum leaves was MS+6-BA 0.5 mg/L+NAA 0.2 mg/L;and the optimum rooting medium for leaves was MS+NAA 0.4 mg/L.The optimum rooting medium for G.pentaphyllum stem segments was MS+IAA 1.0 mg/L,with which the rooting rate was 100%,the average root length was about 3 cm,and the average number of sprouts per explant was 1.48,so it is the optimal condition.[Conclusions]This study provides a new method for in-vitro cultivation of G.pentaphyllum and has far-reaching significance for improving human health.展开更多
Three new dammarane-type glycosides (1-3) had been isolated from the aerial part of Gynostemma pentaphyllum (Thunb) Makino. The structures of compounds 1-3 had been elucidated as 3b, 12b, 25-trihydroxy-20(S), 24(S)-ep...Three new dammarane-type glycosides (1-3) had been isolated from the aerial part of Gynostemma pentaphyllum (Thunb) Makino. The structures of compounds 1-3 had been elucidated as 3b, 12b, 25-trihydroxy-20(S), 24(S)-epoxydammarane 3-O-b-D-glucopyranosyl (12)-b-D- xylo -pyranoside, 3b, 12b, 25-trihydroxy-20(S), 24(R)-epoxydammarane 3-O-b-D-glucopyranosyl (12) -b-D-xylopyranoside and 3b, 12b, 23b, 25-tetrahydroxy-20(S), 24(S)-epoxydammarane 3-O-b-D- glucopyranosyl (12)-b-D-xylopyranoside, respectively, on the basis of chemical and spectro -scopic methods.展开更多
Objective To study the triterpene saponins from Gynostemma pentaphyllum with antitumor activities. Methods The 75% EtOH extract of G. pentaphyllum was used for isolation by silica gel column chromatography and prepara...Objective To study the triterpene saponins from Gynostemma pentaphyllum with antitumor activities. Methods The 75% EtOH extract of G. pentaphyllum was used for isolation by silica gel column chromatography and preparative HPLC. The structures of pure compounds isolated were identified by the spectral analysis and chemical evidence. Results Two compounds were isolated and identified as 23(S)-3β,20ξ,21ξ-trihydroxy-19-oxo-21,23-epoxydammar-24-ene 3-O-α-L-rhamnopyranosyl (1→2)-[β-D-xylopyranosyl (1→3)]-β-D-arabinopyranoside (1) and 23(S)-21(R)-O-n-butyl-3β,20ξ-dihydroxy-21,23-epoxydammar-24-ene 3-O-α-L-rhamnopyranosyl (1→2)-[β-D-xylo- pyranosyl (1→3)]-β-D-arabinopyranoside (2). Conclusion Compound 2 is a new triterpene saponin with moderate antitumor activities against the HL-60, Colon205, and Du145 cell lines.展开更多
基金This work was financially supported by National Nature Science Foundation of China(81973284)Scientific Research Foundation of the Education Department of Liaoning Province(LJKZ0944).
文摘Gynostemma pentaphyllum(G.pentaphyllum)is a traditional medicinal plant with medicinal and economic value.With in-depth research on the chemical compositions and pharmacological effects,the applications of G.pentaphyllum have been expanded.G.pentaphyllum has the effects of clearing heat and detoxification,relieving cough and phlegm,nourishing heart,tranquilizing nerves,and can be used to treat gastroenteritis,tracheitis,pharyngitis,hyperlipidemia,and arteriosclerosis.It can also be used to alleviate symptoms such as migraines,insufficient sleep,and white hair.In recent years,G.pentaphyllum has also been used for clinical adjuvant treatment of various cancers.In this study,the chemical constituents and pharmacological effects on G.pentaphyllum in recent years were reviewed.This review could provide reference for further development and utilization of G.pentaphyllum.
基金supported by E&T modern center for Natural products of Liaoning Province of China (No.2006-19-10)
文摘One new dammarane-type triterpene saponin, named (20S)-3β,20,21-trihydroxydammar-24-ene 3-O[α-L- rhamnopyranosyl-(1→2)][β-D-xylopyranosyl(l→3)]-β-D-glucopyranoside (1), was isolated from the aerial parts of Gynostemma pentaphyllum (Thunb.) Makino. Its structural elucidation was accomplished mainly on the basis of the interrelation of spectroscopic methods, such as IR, HR-TOF-MS, NMR.
基金supported by the National Research Foundation of Korea,grant No.2016R1D1A3B03930722(to MKL),Republic of Korea
文摘Gynostemma(G.) pentaphyllum(Cucurbitaceae) contains various bioactive gypenosides. Ethanol extract from G. pentaphyllum(GP-EX) has been shown to have ameliorative effects on the death of dopaminergic neurons in animal models of Parkinson’s disease(PD) induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-and 6-hydroxydopamine. PD patients exhibit multiple symptoms, so PD-related research should combine neurotoxin models with genetic models. In the present study, we investigated the ameliorative effects of GP-EX, including gypenosides, on the cell death of dopaminergic neurons in the midbrain of A53 T α-synuclein transgenic mouse models of PD(A53 T). Both GP-EX and gypenosides at 50 mg/kg per day were orally administered to the A53 T mice for 20 weeks.α-Synuclein-immunopositive cells and α-synuclein phosphorylation were increased in the midbrain of A53 T mice, which was reduced following treatment with GP-EX. Treatment with GP-EX modulated the reduced phosphorylation of tyrosine hydroxylase, extracellular signal-regulated kinase(ERK1/2), Bcl-2-associated death promoter(Bad) at Ser112, and c-Jun N-terminal kinase(JNK1/2) due to α-synuclein overexpression. In the A53 T group, GP-EX treatment prolonged the latency of the step-through passive avoidance test and shortened the transfer latency of the elevated plus maze test. Gypenosides treatment exhibited the effects and efficacy similar to those of GP-EX. Taken together, GP-EX, including gypenosides, has ameliorative effects on dopaminergic neuronal cell death due to the overexpression of α-synuclein by modulating ERK1/2, Bad at Ser112, and JNK1/2 signaling in the midbrain of A53 T mouse model of PD. Further studies are needed to investigate GP-EX as a treatment for neurodegenerative synucleinopathies, including PD. This study was approved by the Animal Ethics Committee of Chungbuk National University(approval No. CBNUA-956-16-01) on September 21, 2016.
文摘In this series,thirteen cancer patientswere treated with simple GynostemmaPentaphyllum Makino(绞股蓝),and 11cases treated with the Compound prescrip-tion of Gynostemma PentaphyllumMakino,with the other 16 cases treated withthe Compound prescription of RadixAstragali seu Hedysari as controls.LTT,IgG,IgA and lgM levels were assayed be-
文摘The action of total flavones of Gynostemma pentaphyllum (Thunb) Mak (TFG) 60 mg/kg i.v. could prevent arrhythmias induced by drugs and myocardial ischemia were investigated. In anesthetized rats and guinea pigs. The results showed that in TFG group the duration of ventricular tachycardia (VT) induced by aconitine in rats was shortened (P<0 01) and the incidence of ventricular fibrillation (VF) and the mortality were decreased (P<0 01) respectively. The arrhythmias induced by i.v. BaCl 2 4 mg/kg in rats were immediately recovered to a normal sinus rhythm and VT induced by i.v. CaCl 2 130 mg/kg in rats was decreased by TFG i.v. TFG i.v. elevated the doses of i.v. strophanthin G to induce ectopic beats (EB), VT, VF and cardiac arrest (CA) in guinea pigs by 89%, 58%, 27%, and 28% (P<0 01) respectively. The incidence of VF induced by coronary artery ligation in rats was decreased (P<0 01), duration of EB, duraton of VT and VF decreased to 45%, 42% and 0% of the NS group respectively. The results suggest that TFG in dosage of 60 mg/kg might be useful for the prevention of VT and VF.
基金The National Natural Science Foundation of China(31850410476)the Major Projects of Science and Technology in Anhui Province(18030701144,1804b06020347,18030701142,18030701158,201903a06020021).
文摘The anticancer activity of stevenleaf(SV)on the basis of cell viability,cell cycle,and apoptosis induction in HepG2 cancer cells were evaluated.SV controlled the growth of HepG2 cells with IC50 of 139.82μmol/L for 24 h,IC50 of 119.12μmol/L for 48 h and cell cycle arrested at G0/G1 phase,induced cell apoptosis and enhanced intracellular ROS generation.For cell cycle arrest,the mRNA expression levels of p21,p27 and p53 were up-regulated,while the expression levels of Cyclin A,Cyclin D1,Cyclin E and CDK1/2 were downregulated.SV efficiently up-regulated TNF R1,TRADD1 and FADD and down-regulated Caspase8 for cell death receptors;similarly,up-regulated Bax,Bak,Cytc,Apaf1,Caspase3 and Caspase9,and down-regulated Bcl2,Bcl xl and Bad for mitochondrial signal pathway.SV induced the mTOR-mediated cell apoptosis in HepG2 cells via activation of Akt and AMPK.The mechanistic explanation for the anticancer activity of SV as functional food can be derived from above results.
文摘Two new cornpounds,saponin I and saponin II,were isolated from Gynostemma longipes f.Y.Wu.The struetures have been characterized on the basis of cbenical and speetroseopie evidence. ^-~.
文摘A new dammarane saponin, Gycomoside I was isolated from Gynostemma compressum and elucidated as 1β, 3β, 12β,20(S), 26-pentahydroxy-dammar-24(25)-en-20(S)-O-β-D-glucopyranosyl6-β-D-glucopyranoside based on the chemical and spectral evidences.
基金National Natural Science Foundation of China(No.81260536)Guangxi Natural Science Foundation(No.2018GXNSFAA281042)Guangxi University of Traditional Chinese Medicine first-class discipline projects(No.2018XK082,2019XK164).
文摘Objective:To apply molecular docking and network pharmacology methods to predict the potential targets and signaling pathways of Gynostemma pentaphyllum-Scutellaria barbata drugs against colorectal cancer.Methods:The main active compounds of Gynostemma pentaphyllum-Scutellaria barbata were searched through the TCMSP database,and the targets of the active ingredients of the two flavors of traditional Chinese medicine were screened;the relevant targets of colorectal cancer were obtained with the help of GeneCards,TTD,and CTD databases.The STRING database and Cytoscape 3.6.1 software were used to construct the drug-compound-target network and target protein interaction PPI network.The DAVID database was used to perform GO enrichment and KEGG pathway annotation analysis on core targets.Use AutoDock for molecular docking.Results:According to the screening conditions,15 active compounds and 116 drug targets of Gynostemma pentaphyllum and Scutellaria barbata were obtained,and 49 targets related to colorectal cancer.36 biological processes(BP)and 11 biologic processes were obtained by GO analysis.Cellular components(CC,cellular component),16 molecular functions(MF,molecular function),67 signal pathways were obtained through enrichment analysis of KEGG pathway.Conclusion:This study initially revealed that the active compounds of Gynostemma pentaphyllum-Scutellaria barbata pair through multiple components,multiple targets,and multiple pathways in preventing and treating colorectal cancer through molecular docking and network pharmacology.The molecular mechanisms and possible TP53,JUN,MAPK1,HSP90AA1,EGF,IL6,EGFR,PTGS2 and other signals are related to cancer signaling pathway,HIF-1 signaling pathway,pancreatic cancer,PI3K-Akt signaling pathway,inflammatory bowel disease,colorectal cancer,MicroRNA in cancer,p53 signaling pathway,etc.It will lay a theoretical foundation for the follow-up multi-target drug development,molecular biology experiments and related clinical research.
基金Supported by The China Agriculture Research System of MOF and MARA(CARS-21)Guangxi Innovation-Driven Development Project(GuiKe AA18242040)+2 种基金Special Foundation for National Science and Technology Basic Resources of China(2018FY100700)Guangxi Traditional Chinese Medicine Key Discipline Construction Project(GZXK-Z-20-67)Bagui Scholor Program of Guangxi Zhuang Autonomous Region and Research Innovation Team Project(GuiYaoChuang 2019005).
文摘[Objectives]This study was conducted to investigate rapid propagation systems of Gynostemma pentaphyllum.[Methods]Ten different media were tested to select the optimal media for inducing callus proliferation,bud differentiation and rooting by using tissue culture technology,with G.pentaphyllum stem segments and leaves as explants.The stem segments of G.pentaphyllum were used as explants to directly induce rooting and germination,and appropriate media were selected.[Results]The optimum callus induction medium for G.pentaphyllum stem segments was MS+6-BA 1.0 mg/L+NAA 0.4 mg/L;the optimum rooting medium for stem callus was MS+NAA 0.2 mg/L;and the optimum germination medium for stem segments was MS+6-BA 1.0 mg/L.The optimum callus induction medium for G.pentaphyllum leaves was MS+6-BA 0.5 mg/L+NAA 0.2 mg/L;and the optimum rooting medium for leaves was MS+NAA 0.4 mg/L.The optimum rooting medium for G.pentaphyllum stem segments was MS+IAA 1.0 mg/L,with which the rooting rate was 100%,the average root length was about 3 cm,and the average number of sprouts per explant was 1.48,so it is the optimal condition.[Conclusions]This study provides a new method for in-vitro cultivation of G.pentaphyllum and has far-reaching significance for improving human health.
文摘Three new dammarane-type glycosides (1-3) had been isolated from the aerial part of Gynostemma pentaphyllum (Thunb) Makino. The structures of compounds 1-3 had been elucidated as 3b, 12b, 25-trihydroxy-20(S), 24(S)-epoxydammarane 3-O-b-D-glucopyranosyl (12)-b-D- xylo -pyranoside, 3b, 12b, 25-trihydroxy-20(S), 24(R)-epoxydammarane 3-O-b-D-glucopyranosyl (12) -b-D-xylopyranoside and 3b, 12b, 23b, 25-tetrahydroxy-20(S), 24(S)-epoxydammarane 3-O-b-D- glucopyranosyl (12)-b-D-xylopyranoside, respectively, on the basis of chemical and spectro -scopic methods.
基金E&T Modern Center for Natural Products of Liaoning Province of China (2006-19-10)
文摘Objective To study the triterpene saponins from Gynostemma pentaphyllum with antitumor activities. Methods The 75% EtOH extract of G. pentaphyllum was used for isolation by silica gel column chromatography and preparative HPLC. The structures of pure compounds isolated were identified by the spectral analysis and chemical evidence. Results Two compounds were isolated and identified as 23(S)-3β,20ξ,21ξ-trihydroxy-19-oxo-21,23-epoxydammar-24-ene 3-O-α-L-rhamnopyranosyl (1→2)-[β-D-xylopyranosyl (1→3)]-β-D-arabinopyranoside (1) and 23(S)-21(R)-O-n-butyl-3β,20ξ-dihydroxy-21,23-epoxydammar-24-ene 3-O-α-L-rhamnopyranosyl (1→2)-[β-D-xylo- pyranosyl (1→3)]-β-D-arabinopyranoside (2). Conclusion Compound 2 is a new triterpene saponin with moderate antitumor activities against the HL-60, Colon205, and Du145 cell lines.
