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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1992-6-1
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pubmed:abstractText |
Artemisinin (qinghaosu) and its derivatives represent an important new class of antimalarial drugs. Previous work suggests that the antimalarial activity of artemisinin may be mediated by a reaction with intraparasitic hemin. Using cyclic voltammetry, artemisinin and dihydroartemisinin were irreversibly reduced at approximately -1 V. In the presence of concentrations of hemin as low as 50 nM, the reduction took place at much lower potentials (-0.435 to -0.460 V). Both reductions took place after adsorption onto the electrode surface. The shift of the reduction potential to more positive values is indicative of a catalytic process similar to that seen with hydrogen peroxide. The catalytic decomposition of artemisinin may play a role in the antimalarial activity of artemisinin.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antimalarials,
http://linkedlifedata.com/resource/pubmed/chemical/Artemisinins,
http://linkedlifedata.com/resource/pubmed/chemical/Ferric Compounds,
http://linkedlifedata.com/resource/pubmed/chemical/Hemin,
http://linkedlifedata.com/resource/pubmed/chemical/Sesquiterpenes,
http://linkedlifedata.com/resource/pubmed/chemical/artemisinine,
http://linkedlifedata.com/resource/pubmed/chemical/dihydroquinghaosu,
http://linkedlifedata.com/resource/pubmed/chemical/ferric sulfate
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
|
pubmed:issn |
0006-2952
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
43
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
1805-9
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:1575774-Antimalarials,
pubmed-meshheading:1575774-Artemisinins,
pubmed-meshheading:1575774-Dose-Response Relationship, Drug,
pubmed-meshheading:1575774-Ferric Compounds,
pubmed-meshheading:1575774-Hemin,
pubmed-meshheading:1575774-Oxidation-Reduction,
pubmed-meshheading:1575774-Sesquiterpenes
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pubmed:year |
1992
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pubmed:articleTitle |
Hemin-catalyzed decomposition of artemisinin (qinghaosu).
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pubmed:affiliation |
Department of Chemistry, City College of New York, NY 10031.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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