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wuweizisu c/schisandra
Il collegamento viene salvato negli appunti
Pagina 1 a partire dal 17 risultati
Wuweizisu C from Schisandra chinensis decreases membrane potential in C6 glioma cells.
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OBJECTIVE
To study the effects of dibenzocyclooctadiene lignans isolated from Schisandra chinensis, such as wuweizisu C, gomisin N, gomisin A, and schisandrin, on the membrane potential in C6 glioma cells.
METHODS
The membrane potential was estimated by measuring the fluorescence change in
Validated method for bioactive lignans in Schisandra chinensis in vitro cultures using a solid phase extraction and a monolithic column application.
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A simple and rapid method for determination of six lignans found in plant cell cultures of Schisandra chinensis was developed and validated. The lignans were extracted from plant samples with methanol and the extracts were effectively cleaned by solid-phase extraction using Strata C18-E (Phenomenex)
Lignans in the seeds and fruits of Schisandra chinensis cultured in Europe.
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The fruits of Schisandra chinensis (Turcz.) Baill. (Schisandraceae/Magnoliaceae) are a traditional Oriental medicine possessing adaptogenic and hepatoprotective activities. The lignan content in seeds and fruits of the species cultured in various European locations has been investigated. The lignans
[Studies on chemical constituents of Schisandra propinqua (Wall.) Hook. f. et Thoms].
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OBJECTIVE
To isolate and characterize compounds from the stems of Schisandra propinqua.
METHODS
Extracting with solvent, isolating by column chromatography and identifying by the spectroscopic methods.
RESULTS
Six dibenzocyclooctadiene lignans were isolated and identified as tigloylgomisin P(1),
Dibenzocyclooctadiene lignans from Fructus Schisandrae Chinensis improve glucose uptake in vitro.
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Glucose uptake assay-guided fractionations of the methanol extract of Schisandra chinensis led to the isolation of the dibenzocyclooctadiene lignans: gomisin J (1), gomisin N (2), wuweizisu B (3), wuweizisu C (4), gomisin C (5), gomisin D (6), (+)-schisandrin A (7), schisandrin C (8), schisandrol A
Evaluation of cytotoxic activity of Schisandra chinensis lignans.
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Using exhaustive chromatographic separation we have isolated (-)-tigloyl-deangeloyl-gomisin F as a novel dibenzocyclooctadiene lignan from schisandra chinensis. With the help of HPLC, we further isolated (+)-schisandrin, (+)-deoxyschisandrin, (+)-γ-schisandrin, (-)-gomisin J, (+)-gomisin A,
Application of capillary electrochromatography using macroporous polyacrylamide columns for the analysis of lignans from seeds of Schisandra chinensis.
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Capillary electrochromatography (CEC) using polymer-based monolithic stationary phase has been developed as a promising method for the determination of lignans of Schisandra chinensis. The columns were prepared by in situ copolymerisation of acrylamide, N,N'-methylenebisacrylamide, vinylsulfonic
Gomisin A inhibits tumor promotion by 12-O-tetradecanoylphorbol-13-acetate in two-stage carcinogenesis in mouse skin.
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Gomisin A, isolated from the fruits of Schisandra chinensis, is one of the dibenzocyclooctadiene lignans. Application of 12-O-tetradecanoylphorbol-13-acetate (TPA, 1 microgram/ear), a tumor-promoting agent, to the ears of mice induces inflammation. Among seven dibenzocyclooctadiene lignans assayed,
[Studies on chemical constituents from the stems of Schisandra sphaerandra].
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OBJECTIVE
To investigate the chemical constituents from the stems of Schisandra sphaerandra.
METHODS
Compounds were isolated from ethanolic extract of the titled herb by silica gel column chromatography, and their structures were elucidated by physical and chemical evidences and spectroscopic
Dibenzocyclooctadiene lignans from the stems of Schisandra sphaerandra
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Chemical investigation into the stems of the medicinal plant Schisandra sphaerandra led to the isolation and identification of a new dibenzocyclooctadiene lignan sphaerandrin A (1) and 11 known ones gomisin B (2), schirubrisin B (3), kadsuphilin B (4), schizandrin
Studies on the active principles of Schisandra sphenanthera Rehd. et Wils. The structures of schisantherin A, B, C, D, E, and the related compounds.
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Deoxyschisandrin (VIII) and five new lignans, named schisantherin A, B, C, D, and E, were isolated from the active fraction of the fruits of Schisandra sphenanthera Rehd. et Wils. Their configurations and conformations were established by exhaustive spectral analysis as well as chemical degradations
Antibacterial and antioxidant activities and chemical compositions of volatile oils extracted from Schisandra chinensis Baill. seeds using simultaneous distillation extraction method, and comparison with Soxhlet and microwave-assisted extraction.
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The volatile oils were isolated from dried Schisandra chinensis Baill. seeds by Soxhlet extraction (SE), microwave-assisted extraction (MAE), and simultaneous distillation extraction (SDE), and fractions were identified by gas chromatography-mass spectrometry (GC-MS) and high-performance liquid
[Study on chemical constituents from Schisandra chinensis stem].
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OBJECTIVE
To separate and identify the chemical constituents from the stem of Schisandra chinensis.
METHODS
Various chromatographic techniques were used to separate and purify the chemical constituents from 95% ethanol extraction of the stem of Schisandra chinensis. Their structures were elucidated
Dibenzo[a,c]cyclooctadiene lignans of the genus Schisandra: importance, isolation and determination.
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The drug Wuweizi (dried fruits of Schisandra chinensis or S. sphenantherd) is one of important medicinal means used in the Oriental medicine. The lignans of dibenzo[a,c]cyklooctadiene type are major constituents, a volatile oil with mono- and ses-quiterpens, an oil, organic acids and small amounts
Kudsuphilactone B, a nortriterpenoid isolated from Schisandra chinensis fruit, induces caspase-dependent apoptosis in human ovarian cancer A2780 cells.
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A phytochemical study on the fruits of Schisandra chinensis led to the isolation and characterization of nineteen compounds. The structures of the isolates were determined to be schizandrin, deoxyschizandrin, angeloylgomisin H, gomisin A, gomisin J, (-)-gomisin L1, (-)-gomisin L2, wuweizisu C,
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