A new naturally occurring compound 1-polyacetylene glycoside has been isolated form the n- butanol soluble fraction of the leaves of Bidens bipinnata. The chemical structure of 1 was shown to be 3E, 11E—Diethenylene ...A new naturally occurring compound 1-polyacetylene glycoside has been isolated form the n- butanol soluble fraction of the leaves of Bidens bipinnata. The chemical structure of 1 was shown to be 3E, 11E—Diethenylene 5. 7. 9—triacetylene, 1, 13—tridecanglycol-2-O-β-D-glycoside named bipinnatpolyacetyloside according to spectral analyses of UV. IR. FDMS, ~1H-NMR, ~H-~H COSY, ^(13)C-NMR and DEPT.展开更多
A new chalcone glycoside, butein-4-methoxyl-4′-O-（6＂-O-acetyl）-β-D-glucopyranoside（2）, along with seven known compounds, namely, quercitrin（1）, luteolin-7-O-β-D-glucopyranoside（3）, butein-4＇-O-β-D-glucop...A new chalcone glycoside, butein-4-methoxyl-4′-O-（6＂-O-acetyl）-β-D-glucopyranoside（2）, along with seven known compounds, namely, quercitrin（1）, luteolin-7-O-β-D-glucopyranoside（3）, butein-4＇-O-β-D-glucopyranoside（4）, butein-4-methoxyl-4＇-O-β-D-glucopyranoside（5）, butin-7-O-β-D-glucopyranoside（6）, isoquercitrin（7）, and sulfurein（8） was isolated from aerial parts of Bidens ceruna L. Their structures were elucidated on the basis of spectroscopic studies. Compounds 1-8 were tested for their DPPH radical scavenging activity and, except compounds 2 and 5, other compounds showed scavenging activitv.展开更多
[Objectives] To compare the anti-inflammatory activities of three extraction processes of the exotic plant Bidens alba(L.) DC in Lingnan(south of the Five Ridges in China).[Methods]The alcohol extracts of B.alba(L.) D...[Objectives] To compare the anti-inflammatory activities of three extraction processes of the exotic plant Bidens alba(L.) DC in Lingnan(south of the Five Ridges in China).[Methods]The alcohol extracts of B.alba(L.) DC were extracted and separated with petroleum ether,chloroform and ethyl acetate respectively.The anti-inflammatory activity experiment of these three extracts was carried out with the RAW264.7 inflammatory model of mouse macrophages in vitro.[Results]When the concentration was 0.05-1.6 mg/L,the petroleum ether extract of B.alba(L.) DC produced strong inhibitory effects on nitric oxide(NO) release of RAW264.7 macrophages induced by LPS;the inhibition of ethyl acetate extract was weak,and the chloroform extract showed no significant inhibition.[Conclusions]Petroleum ether is the best extractant for active anti-inflammatory ingredients of B.alba(L.) DC.展开更多
[Objectives]This study was conducted to investigate the analgesic effects and acute toxicities of Bidens alba (L.) DC.[Methods]The alcohol extract of B.alba (L.) DC was extracted and separated with petroleum ether and...[Objectives]This study was conducted to investigate the analgesic effects and acute toxicities of Bidens alba (L.) DC.[Methods]The alcohol extract of B.alba (L.) DC was extracted and separated with petroleum ether and chloroform successively.The acute toxicities of the two extracts on mice were measured,and then the analgesic effects were measured with writhing pain model induced by acetic acid.[Results]No mice died when the crude dosages of B.alba (L.) DC from petroleum ether extract and chloroform extract were 5 016 and 5 100 mg/kg,respectively.When the petroleum ether extract was 60.0 mg/kg,the percentage of twisted mice induced by acetic acid was 40%,the analgesic rate was 77.5%,and the time of the first writhing was (294.0±165.8) s;when the chloroform extract was 20.0 mg/kg,the percentage of twisted animals was 55.6%,the analgesic rate was 51.5%,and the time of the first writhing was (273.8 ±153.4) s;and when the chloroform extract was 4.0 mg/kg,the percentage of twisted animals was 40%,and the analgesic rate was 62.1%,and the time of the first writhing was (370.6±231.3) s.[Conclusions]The petroleum ether extracts and chloroform extracts of B.alba (L.) DC have good analgesic effects and no acute toxicities.展开更多
The aim of the study is the development and standardization of granules in hard gelatin capsules based on the composition of dry extracts of Bidens tripartita L.,Solidago canadensis L.and Agrimonia eupatoria L.Herbs,p...The aim of the study is the development and standardization of granules in hard gelatin capsules based on the composition of dry extracts of Bidens tripartita L.,Solidago canadensis L.and Agrimonia eupatoria L.Herbs,possessing nephroprotective activity and antifibrotics in toxic nephropathies.Developed the structure and defined the quality indicators of the pellets with dry extracts of Bidens tripartita L.,Solidago canadensis L.and Agrimonia eupatoria L.herbs.The quality specification for the drug-granules of the composition of dry extracts in solid gelatin capsules is developed.展开更多
The effects of ethanol extract of Bidens pilosa L.(EEB)on acute exercise fatigue and its underlying biochemical mechanism were investigated in this study.Sixty adult male ICR mice were divided into control,model,vitam...The effects of ethanol extract of Bidens pilosa L.(EEB)on acute exercise fatigue and its underlying biochemical mechanism were investigated in this study.Sixty adult male ICR mice were divided into control,model,vitamin C(VC)100,EEB40,EEB80,and EEB160 groups,receiving VC(100 mg/kg)or EEB(40,80,160 mg/kg)for 28 days(intragastrically,I.G.).The mice underwent tailsuspension,elevated plus maze(EPM),rotarod,and loaded swimming tasks and biochemical indices were measured.There were no significant differences in body weight,tail suspension time,EPM open arm time/entries and serum cortisone levels among the groups.Compared with the model group,there was an increase in rotarod latency in the VC100/EEB80 groups and an increase in loaded swimming time in the EEB80/EEB160 groups.Furthermore,the haptic and muscle glycogen levels decreased in the model group,while the haptic glycogen levels increased in the all VC/EEB groups.Similarly,the serum lactate and creatinine levels increased in the model group,but decreased in lactate(except for EEB160),creatinine(except for EEB40)and lactate dehydrogenase in the EEB80 group.In the liver,malonaldehyde(MDA)and oxidized glutathione(GSSG)levels increased in the model group;however,glutathione reductase(GR)(except for EEB40),glutathione(GSH)and GSH/GSSG ratios increased,with GSSG levels decreasing in all VC/EEB groups.In the quadriceps,the GR levels increased in the model,whereas it decreased in the VC100,EEB40 and EEB80 groups.These results suggest that EEB has anti-acute fatigue effect,potentially attributed to mitigate metabolite accumulation,enhancing glycogen reserves,and fortifying the antioxidant mechanism.展开更多
文摘A new naturally occurring compound 1-polyacetylene glycoside has been isolated form the n- butanol soluble fraction of the leaves of Bidens bipinnata. The chemical structure of 1 was shown to be 3E, 11E—Diethenylene 5. 7. 9—triacetylene, 1, 13—tridecanglycol-2-O-β-D-glycoside named bipinnatpolyacetyloside according to spectral analyses of UV. IR. FDMS, ~1H-NMR, ~H-~H COSY, ^(13)C-NMR and DEPT.
文摘A new chalcone glycoside, butein-4-methoxyl-4′-O-（6＂-O-acetyl）-β-D-glucopyranoside（2）, along with seven known compounds, namely, quercitrin（1）, luteolin-7-O-β-D-glucopyranoside（3）, butein-4＇-O-β-D-glucopyranoside（4）, butein-4-methoxyl-4＇-O-β-D-glucopyranoside（5）, butin-7-O-β-D-glucopyranoside（6）, isoquercitrin（7）, and sulfurein（8） was isolated from aerial parts of Bidens ceruna L. Their structures were elucidated on the basis of spectroscopic studies. Compounds 1-8 were tested for their DPPH radical scavenging activity and, except compounds 2 and 5, other compounds showed scavenging activitv.
基金Supported by Special Research Fund for Medical and Health of Huadu District of Guangzhou City(17-HDWS-037)Special Fund for Scientific and Technological Development of Guangdong Province(2017A020225023)President Fund of Guangdong Academy of Agricultural Sciences(201627)
文摘[Objectives] To compare the anti-inflammatory activities of three extraction processes of the exotic plant Bidens alba(L.) DC in Lingnan(south of the Five Ridges in China).[Methods]The alcohol extracts of B.alba(L.) DC were extracted and separated with petroleum ether,chloroform and ethyl acetate respectively.The anti-inflammatory activity experiment of these three extracts was carried out with the RAW264.7 inflammatory model of mouse macrophages in vitro.[Results]When the concentration was 0.05-1.6 mg/L,the petroleum ether extract of B.alba(L.) DC produced strong inhibitory effects on nitric oxide(NO) release of RAW264.7 macrophages induced by LPS;the inhibition of ethyl acetate extract was weak,and the chloroform extract showed no significant inhibition.[Conclusions]Petroleum ether is the best extractant for active anti-inflammatory ingredients of B.alba(L.) DC.
基金Supported by Special Fund for Scientific and Technological Development of Guangdong Province(2017A020225023)President Fund of Guangdong Academy of Agricultural Sciences(201627)Special Research Fund for Medical and Health of Huadu District of Guangzhou City(17-HDWS-037)
文摘[Objectives]This study was conducted to investigate the analgesic effects and acute toxicities of Bidens alba (L.) DC.[Methods]The alcohol extract of B.alba (L.) DC was extracted and separated with petroleum ether and chloroform successively.The acute toxicities of the two extracts on mice were measured,and then the analgesic effects were measured with writhing pain model induced by acetic acid.[Results]No mice died when the crude dosages of B.alba (L.) DC from petroleum ether extract and chloroform extract were 5 016 and 5 100 mg/kg,respectively.When the petroleum ether extract was 60.0 mg/kg,the percentage of twisted mice induced by acetic acid was 40%,the analgesic rate was 77.5%,and the time of the first writhing was (294.0±165.8) s;when the chloroform extract was 20.0 mg/kg,the percentage of twisted animals was 55.6%,the analgesic rate was 51.5%,and the time of the first writhing was (273.8 ±153.4) s;and when the chloroform extract was 4.0 mg/kg,the percentage of twisted animals was 40%,and the analgesic rate was 62.1%,and the time of the first writhing was (370.6±231.3) s.[Conclusions]The petroleum ether extracts and chloroform extracts of B.alba (L.) DC have good analgesic effects and no acute toxicities.
文摘The aim of the study is the development and standardization of granules in hard gelatin capsules based on the composition of dry extracts of Bidens tripartita L.,Solidago canadensis L.and Agrimonia eupatoria L.Herbs,possessing nephroprotective activity and antifibrotics in toxic nephropathies.Developed the structure and defined the quality indicators of the pellets with dry extracts of Bidens tripartita L.,Solidago canadensis L.and Agrimonia eupatoria L.herbs.The quality specification for the drug-granules of the composition of dry extracts in solid gelatin capsules is developed.
基金Supported by the National Natural Science Foundation of China(31760278)。
文摘The effects of ethanol extract of Bidens pilosa L.(EEB)on acute exercise fatigue and its underlying biochemical mechanism were investigated in this study.Sixty adult male ICR mice were divided into control,model,vitamin C(VC)100,EEB40,EEB80,and EEB160 groups,receiving VC(100 mg/kg)or EEB(40,80,160 mg/kg)for 28 days(intragastrically,I.G.).The mice underwent tailsuspension,elevated plus maze(EPM),rotarod,and loaded swimming tasks and biochemical indices were measured.There were no significant differences in body weight,tail suspension time,EPM open arm time/entries and serum cortisone levels among the groups.Compared with the model group,there was an increase in rotarod latency in the VC100/EEB80 groups and an increase in loaded swimming time in the EEB80/EEB160 groups.Furthermore,the haptic and muscle glycogen levels decreased in the model group,while the haptic glycogen levels increased in the all VC/EEB groups.Similarly,the serum lactate and creatinine levels increased in the model group,but decreased in lactate(except for EEB160),creatinine(except for EEB40)and lactate dehydrogenase in the EEB80 group.In the liver,malonaldehyde(MDA)and oxidized glutathione(GSSG)levels increased in the model group;however,glutathione reductase(GR)(except for EEB40),glutathione(GSH)and GSH/GSSG ratios increased,with GSSG levels decreasing in all VC/EEB groups.In the quadriceps,the GR levels increased in the model,whereas it decreased in the VC100,EEB40 and EEB80 groups.These results suggest that EEB has anti-acute fatigue effect,potentially attributed to mitigate metabolite accumulation,enhancing glycogen reserves,and fortifying the antioxidant mechanism.
