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epiberberine/coptis chinensis
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頁 1 從 31 結果
Effect of epiberberine from Coptis chinensis Franch on inhibition of tumor growth in MKN-45 xenograft mice
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Background and purpose: Gastric cancer is one of the major malignancies worldwide. Epiberberine (EPI) is a major alkaloid from Coptis chinensis Franch and the antitumor property of EPI remains poorly understood.
Screening for potential -α -Glucosidase inhibitors in Coptis chinensis franch extract using ultrafiltration LC-ESI-MSn.
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Naturally existing -α -glucosidase inhibitors from traditional herbal medicines have attracted considerable interest to treat type 2 diabetes mellitus (T2DM). Hundreds of herbs have been reported to have the potential to inhibit -α -glucosidase. However, most common methods to examine the inhibitors
A simple and intuitive method for optimizing the chemical constituents of Coptis Chinensis Franch. is important to assess its quality and clinical efficacy. An high performance liquid chromatography and ultraviolet spectrophotometry method was developed for the determination of berberine
Anti-adipogenic effect of epiberberine is mediated by regulation of the Raf/MEK1/2/ERK1/2 and AMPKα/Akt pathways.
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It has been reported that alkaloids derived from Coptis chinensis exert anti-adipogenic activity on 3T3-L1 adipocytes by downregulating peroxisome proliferation-activity receptor-γ (PPAR-γ) and CCAAT/enhancer binding protein-α (C/EBP-α). However, the signaling-based mechanism of the inhibitory role
Coptis chinensis Franch., the Chinese goldthread ('Weilian' in Chinese), one of the most important medicinal plants from the family Ranunculaceae, and its rhizome has been widely used in Traditional Chinese Medicine for centuries. Here, we analyzed the chemical components and the transcriptome of
[Establishment of the control substance of plant drug and fingerprints of Coptis chinensis].
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OBJECTIVE
To establish the control substance of plant drug (CSPD) of Coptis chinensis Franch. and its proton nuclear magnetic resonance (1H NMR) and high performance liquid chromatography (HPLC) fingerprints for the purpose of original identification.
METHODS
The CSPD and their 1H NMR and HPLC
[An analytical method for alkaloids of Coptis chinensis based on mixed-mode surface electrostatic exclusion/reversed-phase chromatography].
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A mixed-mode chromatographic method based on surface electrostatic exclusion and reversed-phase chromatography was established for the determination of alkaloids present in Coptis chinensis. The effects of two mobile phase additives, formic acid and acetic acid, on retention, peak shape and
Application of analytical and preparative high-speed counter-current chromatography for separation of alkaloids from Coptis chinensis Franch.
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Analytical high-speed counter-current chromatography (HSCCC) was used for the systematic selection and optimization of the two-phase solvent system to separate alkaloids from Coptis chinensis Franch. The optimum solvent system thus obtained led to the successful separation of alkaloids from C.
[Dynamic accumulation of effective components and biomass of Coptis chinensis in Hongya county].
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OBJECTIVE
To study the dynamic accumulation of the effective components and biomass of Coptis chinensis, so to provide the experimental date of optimal harvest time for C. chinensis in Hongya county.
METHODS
The samples of three to five years were gathered from the same field and time. The biomass
[Simultaneous determination of six alkaloids in Coptis chinensis of different regions by RP-HPLC].
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A reversed-phase HPLC method for simultaneous determination of gatrorrhizine, columbamine, epiberberine, coptisine, palmatine and berberine in Coptis chinensis was developed. Analysis was carried out on an Xtimate C18 column (4.6 mm x 250 mm, 5 microm) eluted with acetonitrile-30 mmol x L(-1)
Coptis chinensis inflorescence extract protection against ultraviolet-B-induced phototoxicity, and HPLC-MS analysis of its chemical composition.
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Cultivated Coptis chinensis inflorescence has been highly valued in Chinese tea production for many years. The main alkaloid compounds in C. chinensis inflorescence ethanolic extracts (CE) were identified by high-performance liquid chromatography-mass spectrometry. The detected compounds included
OBJECTIVE
Combining the quantitative physical property characteristics of the appearance with the internal quality evaluation index, its aims to provide experimental basis for the classification and quality evaluation of Coptis chinensis.
METHODS
Fourteen batches of C. chinensis from different areas
With Coptis chinensis in high-yielding soil as the object,the growth regularity of plant and dynamic change of alkaloid content was studied. The plant growth model of C. chinensis was constructed. The plant height equation was y=3.030 9+0.732 6x-0.009 6x²,the number of leaves equation was y=111.882
Natural alkaloid 8-oxo-epiberberine inhibited TGF-β1-triggred epithelial-mesenchymal transition by interfering Smad3
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Epithelial-mesenchymal transition (EMT), the transition of epithelial cells into mesenchymal cells, plays important roles in the metastasis of solid tumors. 8-Oxo-epiberberine (OPB) is a natural alkaloid extracted from the roots of Coptis chinensis Franch. In this study, The effect and the
An activity integrated strategy was established and validated to screen α-glucosidase inhibitors by ultra-high-performance liquid chromatography/quadrupole-time-of-flight mass spectrometry and fraction collector (UHPLC/Q-TOF-MS-FC). UHPLC was used to separate the components in Coptis chinensis
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