Source:http://linkedlifedata.com/resource/pubmed/id/18412397
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2008-6-27
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pubmed:abstractText |
High-throughput screening of a plant and marine invertebrate extract library to find natural products that down-regulate expression of pro-inflammatory genes associated with the glucocorticoid receptor ligand complex led to the identification of bioactive CH2Cl 2 extracts from stems and leaves of the Queensland tree Ochrosia moorei. Bioassay-guided purification of the stem extract enabled the isolation of four alkaloids including two new compounds, ochrosamines A (1) and B (2), and the known compounds ellipticine (3) and 9-methoxyellipticine (4). The leaf extract also afforded 3 and 4 as well as apparicine (5) and desoxycordifoline (6). The structures of the two new compounds were assigned from interpretation of 2D NMR and high-resolution ESIMS data. Ellipticine and 9-methoxyellipticine were the most active components, and both displayed IC 50 values of 90 microM. Apparicine and desoxycordifoline were only very weakly active, and ochrosamines A and B were inactive.
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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 |
Jun
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pubmed:issn |
1520-6025
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
71
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1063-5
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pubmed:meshHeading |
pubmed-meshheading:18412397-Alkaloids,
pubmed-meshheading:18412397-Australia,
pubmed-meshheading:18412397-Molecular Structure,
pubmed-meshheading:18412397-Nuclear Magnetic Resonance, Biomolecular,
pubmed-meshheading:18412397-Ochrosia,
pubmed-meshheading:18412397-Plant Leaves,
pubmed-meshheading:18412397-Plant Stems,
pubmed-meshheading:18412397-Trees
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pubmed:year |
2008
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pubmed:articleTitle |
Alkaloids from the Australian rainforest tree Ochrosia moorei.
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pubmed:affiliation |
Eskitis Institute, Griffith University, Brisbane, Queensland, Australia 4111.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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