Lipoxygenase inhibitory constituents of the fruits of noni (Morinda citrifolia) collected in Tahiti.
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Deng S, Palu 'K, West BJ, Su CX, Zhou BN, Jensen JC
Lipoxygenase inhibitory constituents of the fruits of noni (Morinda citrifolia) collected in Tahiti.
J Nat Prod. 2007 May;70(5):859-62. Epub 2007 Mar 23.
- PubMed ID
- 17378609 [ View in PubMed]
- Abstract
A phytochemical study of the fruits of noni (Morinda citrifolia) collected in Tahiti led to the isolation of two new lignans, (+)-3,4,3',4'-tetrahydroxy-9,7'alpha-epoxylignano-7 alpha,9'-lactone (1) and (+)-3,3'-bisdemethyltanegool (2), as well as seven known compounds, (-)-pinoresinol (3), (-)-3,3'-bisdemethylpinoresinol (4), quercetin (5), kaempferol (6), scopoletin (7), isoscopoletin (8), and vanillin. The structures of 1 and 2 were determined by spectroscopic techniques. Compounds 3, 6, and 8 were isolated for the first time from noni fruit. Compounds 1-8 were shown to inhibit 5- and/or 15-lipoxygenase, with IC50 values ranging from 0.43 to 16.5 microM. Compound 5 exhibited weak inhibitory activity toward cyclooxygenase-2.
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- Binding Properties
Drug Target Property Measurement pH Temperature (°C) Rofecoxib Prostaglandin G/H synthase 2 IC 50 (nM) 120 N/A N/A Details