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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1975-11-8
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pubmed:abstractText |
By means of a combination of partition and chromatographic methods six irritant constituents were isolated from the fresh latex of Euphorbia fortissima. Compounds A-D were di-esters of the common parent diterpene 12-deoxyphorbol, and compounds E and F were mono-esters of the same diterpene. The fresh latex had an irritant dose 50% (ID50) on mice of 0-64 mug mul- minus 1. Compounds A-D are short-acting irritants reaching a maximum activity within 4 h of application to the skin, whilst the monoesters maintained potent irritant effects for up to 24 h. Selective hydrolysis of the di-esters at the C-20 primary ester group also produced mono-esters of greater potency after 24 h. An increase in the length of the fatty acid located at C-13 produced greater biological activity in both the mono- and di-ester groups.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0022-3573
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
27
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
329-33
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:239133-Animals,
pubmed-meshheading:239133-Hydrolysis,
pubmed-meshheading:239133-Irritants,
pubmed-meshheading:239133-Magnetic Resonance Spectroscopy,
pubmed-meshheading:239133-Mass Spectrometry,
pubmed-meshheading:239133-Mice,
pubmed-meshheading:239133-Phorbol Esters,
pubmed-meshheading:239133-Phorbols,
pubmed-meshheading:239133-Plants,
pubmed-meshheading:239133-Rubber
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pubmed:year |
1975
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pubmed:articleTitle |
Skin irritants of Euphorbia fortissima.
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pubmed:publicationType |
Journal Article
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