1.Studies on constituents from roots of Euphorbia hylonoma.
Han-li RUAN ; Yue ZHANG ; Yong-hui ZHANG ; Hui-fang PI ; Ji-zhou WU
China Journal of Chinese Materia Medica 2006;31(9):742-744
OBJECTIVETo study the constituents from roots of Euphorbia hylonoma.
METHODColumn chromatographic techniques were used for isolation and purification of the chemical constituents and their structures were identified by spectral analysis (IR, 1H-NMR, 13C-NMR, 2D-NMR and MS).
RESULTSix compounds were isolated and elucidated as nonane (1), bis (2-ethylhexyl) phthalate (2), euphol (3), beta-sitosterol (4), acalyphol (5) and daucosterol (6) respectively.
CONCLUSIONCompounds 1, 2, 3, 5 and 6 were isolated from the plant for the first time.
Alkanes ; chemistry ; isolation & purification ; Diethylhexyl Phthalate ; chemistry ; isolation & purification ; Euphorbia ; chemistry ; Lanosterol ; analogs & derivatives ; chemistry ; isolation & purification ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Sitosterols ; chemistry ; isolation & purification ; Triterpenes ; chemistry ; isolation & purification
2.Preparation and antitussive, expectorant and antiasthmatic activities of verticinone-bile acids salts.
Fang-Zhou XU ; Yong-Hui ZHANG ; Han-Li RUAN ; Hui-Fang PI ; Chang CHEN ; Ji-Zhou WU
Acta Pharmaceutica Sinica 2007;42(3):274-278
To search for potential drugs with potent antitussive, expectorant, antiasthmatic activities and low toxicity, a series of verticinone-bile acids salts were prepared based on the clearly elucidated antitussive, expectorant and antiasthmatic activities of verticinone in bulbs of Fritillaria and different bile acids in Snake Bile. The antitussive, expectorant and antiasthmatic activities of these verticinone-bile acid salts were then screened with different animal models. Ver-CA (verticinone-cholic acid salt) and Ver-CDCA (verticinone-chenodeoxycholic acid salt) showed much more potent activities than other compounds. The bioactivities of Ver-CA and Ver-CDCA are worthy to be intensively studied, and it is also deserved to pay much attention to their much more potent antitussive effects than codeine phosphate. In order to elucidate whether they have synergistic effect and attenuated toxicity, their activities will be continuously compared with single verticinone, cholic acid and chenodeoxycholic acid at the same doses on different animal models. The application of "combination principles" in traditional Chinese medicinal formulations may be a novel way in triditional Chinese medicine research and discovery.
Animals
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Anti-Asthmatic Agents
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chemistry
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pharmacology
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Antitussive Agents
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chemistry
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pharmacology
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Asthma
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prevention & control
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Bile Acids and Salts
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chemistry
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pharmacology
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Cevanes
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chemistry
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isolation & purification
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pharmacology
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Chenodeoxycholic Acid
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chemistry
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pharmacology
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Cholic Acid
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chemistry
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pharmacology
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Cough
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prevention & control
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Drug Combinations
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Drug Compounding
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methods
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Drug Synergism
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Expectorants
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chemistry
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pharmacology
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Female
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Fritillaria
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chemistry
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Guinea Pigs
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Male
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Mice
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Plants, Medicinal
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chemistry
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Random Allocation
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Snakes
3.HPLC fingerprint of Fritillaria hupehensis.
Guo-Xin ZHANG ; Juan LI ; Peng ZHANG ; Han-Li RUAN ; Yong-Hui ZHANG ; Hui-Fang PI ; Ji-Zhou WU
Acta Pharmaceutica Sinica 2005;40(9):850-853
AIMTo establish a fingerprint analysis method of Fritillaria hupehensis.
METHODSfingerprint was performed by HPLC-ELSD. Hypersil ODS column was used; the mobile phase was composed of methanol (with 0.05% triethylamine) and water with gradient elution; flow rate was 1.0 mL x min(-1); recording time was 60 min; drift tube temperature was 75 degrees C; gas flow rate was 1.9 L x min(-1).
RESULTSHPLC fingerprint of Fritillaria hupehensis was obtained.
CONCLUSIONA reliable method was provided for controlling the quality of Fritillaria hupehensis.
Alkaloids ; analysis ; Cevanes ; analysis ; Chromatography, High Pressure Liquid ; methods ; Fritillaria ; chemistry ; Light ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Quality Control ; Reproducibility of Results ; Scattering, Radiation ; Sensitivity and Specificity
4.Green Tea Polyphenols Alleviate Autophagy Inhibition Induced by High Glucose in Endothelial Cells.
Pi Wei ZHANG ; Chong TIAN ; Fang Yi XU ; Zhuo CHEN ; Raynard BURNSIDE ; Wei Jie YI ; Si Yun XIANG ; Xiao XIE ; Nan Nan WU ; Hui YANG ; Na Na ZHAO ; Xiao Lei YE ; Chen Jiang YING ;
Biomedical and Environmental Sciences 2016;29(7):524-528
Bovine aortic endothelial cells (BAECs) were cultured with high glucose (33 mmol/L), 4 mg/L green tea polyphenols (GTPs) or 4 mg/L GTPs co-treatment with high glucose for 24 h in the presence or absence of Bafilomycin-A1 (BAF). We observed that high glucose increased the accumulation of LC3-II. Treatment with BAF did not further increase the accumulation of LC3-II. Results also showed an increased level of p62 and decreased Beclin-1. However, GTPs showed inversed trends of those proteins. Furthermore, GTPs co-treatment with high glucose decreased the level of LC3-II and a much higher accumulation of LC3-II was observed in the presence of BAF in comparison with high glucose alone. Results also showed a decreased p62 and increased Beclin-1. The results demonstrated that GTPs alleviated autophagy inhibition induced by high glucose, which may be involved in the endothelial protective effects of green tea against hyperglycemia.
Animals
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Autophagy
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drug effects
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Cattle
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Cells, Cultured
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Endothelial Cells
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drug effects
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metabolism
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Gene Expression Regulation
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drug effects
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Glucose
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toxicity
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Macrolides
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pharmacology
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Polyphenols
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chemistry
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pharmacology
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Tea
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chemistry