Abstract
Seven new triterpene glycosides, bryoniosides A-G (1-7), have been isolated along with two known triterpene glycosides, cabenoside D (8) and bryoamaride (9), from a methanol extract of the roots of Bryoniadioica. The structures of 1-7 were determined on the basis of spectroscopic and chemical methods. Six compounds, 2, 3, 5, and 7-9, and 11 compounds, 1-9, bryodulcosigenin (10), and bryosigenin (11), respectively, were evaluated for their inhibitory effects on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inflammation (1 microg/ear) in mice and on Epstein-Barr virus early antigen (EBV-EA) activation induced by TPA. All compounds tested showed marked anti-inflammatory effects, with 50% inhibitory doses (ID(50)) of 0.2-0.6 mg per ear. In addition, all of the compounds tested except for compound 5 showed potent inhibitory effects on EBV-EA induction (100% inhibition at 1 x 10(3) mol ratio/TPA).
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Anti-Inflammatory Agents, Non-Steroidal / chemistry
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Anti-Inflammatory Agents, Non-Steroidal / isolation & purification*
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Anti-Inflammatory Agents, Non-Steroidal / pharmacology
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Antigens, Viral / analysis
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Antineoplastic Agents, Phytogenic / chemistry
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Antineoplastic Agents, Phytogenic / isolation & purification*
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Antineoplastic Agents, Phytogenic / pharmacology
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Bryonia / chemistry*
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Chromatography, High Pressure Liquid
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Ear
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Female
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Glycosides / chemistry
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Glycosides / isolation & purification*
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Glycosides / pharmacology
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Herpesvirus 4, Human / drug effects
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Herpesvirus 4, Human / immunology
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Hydrolysis
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Inhibitory Concentration 50
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Japan
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Mice
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Mice, Inbred ICR
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Plant Roots / chemistry
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Plants, Medicinal / chemistry*
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Tetradecanoylphorbol Acetate / toxicity
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Triterpenes / chemistry
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Triterpenes / isolation & purification*
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Triterpenes / pharmacology
Substances
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Anti-Inflammatory Agents, Non-Steroidal
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Antigens, Viral
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Antineoplastic Agents, Phytogenic
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Epstein-Barr virus early antigen
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Glycosides
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Triterpenes
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Tetradecanoylphorbol Acetate