Abstract
A new cyathane diterpene, named as cyathin I (1), as well as two known cyathane diterpenes (12R)-11a,14a-epoxy-13a,14b,15-trihydroxycyath-3-ene (2) and erinacine I (3), were isolated from the liquid culture of Cyathus hookeri Berk. Their structures were elucidated on the basis of extensive spectroscopic analysis. Compounds 1-3 showed inhibition against nitric oxide production in macrophages with an IC50 value of 15.5, 52.3, and 16.8 μM, respectively.
Copyright © 2013 Elsevier B.V. All rights reserved.
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 / isolation & purification
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Anti-Inflammatory Agents / pharmacology*
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Biological Products / chemistry
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Biological Products / pharmacology*
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Cyathus / chemistry*
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Diterpenes / isolation & purification
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Diterpenes / pharmacology*
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Inflammation / metabolism*
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Inhibitory Concentration 50
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Macrophages / drug effects*
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Macrophages / metabolism
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Mice
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Nitric Oxide / biosynthesis*
Substances
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Anti-Inflammatory Agents
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Biological Products
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Diterpenes
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cyathane
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cyathin I
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erinacine I
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Nitric Oxide