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13 risultati
A new labdane-type diterpenoid from the leaves of Vitex negundo L.
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A new labdane-type diterpenoid, named vitexnegundin (1), along with seven known compounds, including vitexilactone (2), vitetrifolin D (3), 13-hydroxy-5(10),14-halimadien-6-one (4), (rel
Polymethoxyflavonoids from Vitex rotundifolia inhibit proliferation by inducing apoptosis in human myeloid leukemia cells.
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Three polymethoxyflavonoids from the fruit of Vitex rotundifolia, namely 2',3',5-trihydroxy-3,6,7-trimethoxyflavone (Vx-1), vitexicarpin (Vx-5) and artemetin (Vx-6), were tested for their antiproliferative activity in human myeloid leukemia HL-60 cells. They showed a dose-dependent decrease in the
Antioxidant and hepatoprotective effects of ethanol extract of Vitex glabrata on carbon tetrachloride-induced liver damage in rats.
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This study was aimed at evaluating the antioxidant and hepatoprotective effects of the ethanol extract of Vitex glabrata (EEVG) in a CCl(4)-induced liver damage model in rats; and to isolate and characterise the bioactive constituent from EEVG. Hepatoprotective activity was evaluated by changes in
Compounds from the Fruits of the Popular European Medicinal Plant Vitex agnus-castus in Chemoprevention via NADP(H):Quinone Oxidoreductase Type 1 Induction.
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As part of our continuing efforts in the search for potential biologically active compounds from medicinal plants, we have isolated 18 compounds including two novel nitrogen containing diterpenes from extracts of the fruits of Vitex agnus-castus. These isolates, along with our previously obtained
Antiproliferative effect of flavonoids from the halophyte Vitex rotundifolia on human cancer cells.
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Three flavonoids, luteolin (1), vitexicarpin (2) and artemetin (3), from the salt marsh plant Vitex rotundifolia, were tested for their anti-proliferative activities in AGS, MCF-7 and HT-29 human cancer cell lines and compared with the control using MTT assay. Among them, 2 was most effective with
Antiinflammatory and lipoxygenase inhibitory compounds from Vitex agnus-castus.
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Several secondary metabolites, artemetin (1), casticin (2), 3,3'-dihydroxy-5,6,7,4'-tetramethoxy flavon (3), penduletin (4), methyl 4-hydroxybenzoate (5), p-hydroxybenzoic acid (6), methyl 3,4-dihydroxybenzoate (7), 5-hydroxy-2-methoxybenzoic acid (8), vanillic acid (9) and 3,4-dihydroxybenzoic acid
G2-M arrest and antimitotic activity mediated by casticin, a flavonoid isolated from Viticis Fructus (Vitex rotundifolia Linne fil.).
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Flavonoids are distributed in many plants. We studied the antitumor effects of flavonoids isolated from Viticis Fructus, casticin, artemetin, quercetagetin and 5,3'-dihydroxy-6,7,4' -trimethoxyflavanone. Casticin inhibited the growth of KB cells markedly (IC(50)=0.23 microM), compared with the other
Anti-Atherosclerotic Effects of Fruits of Vitex rotundifolia and Their Isolated Compounds via Inhibition of Human LDL and HDL Oxidation.
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Low-density lipoprotein (LDL) and high-density lipoprotein (HDL) oxidation are well known to increase the risk for atherosclerosis. In our ongoing research on natural products with inhibitory activities against oxidation of lipoproteins, fruits of Vitex rotundifolia were found to be highly
Phenolic compounds and flavonoids as plant growth regulators from fruit and leaf of Vitex rotundifolia.
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Five phenolic compounds, 4-hydroxybenzoic acid methyl ester (1), vanillic acid methyl ester (2), 4-hydroxy benzaldehyde (3), 4-hydroxybenzoic acid (4) and ferulic acid (5), and four flavonoids, 5,5'-dihydroxy-4',6,7-trimethoxyflavanone (6), luteolin (7), vitexicarpin (8) and artemetin (9), were
Cytotoxic flavonoids from Vitex agnus-castus.
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Four new flavonoids, luteolin 6-C-(4"-methyl-6"-O-trans-caffeoylglucoside), luteolin 6-C-(6"-O-trans-caffeoylglucoside), luteolin 6-C-(2"-O-trans-caffeoylglucoside), and luteolin 7-O-(6"-p-benzoylglucoside), together with four known ones 5, 4'-dihydroxy-3,6,7,3'-tetramethoxyflavone, luteolin,
New diterpenes and norditerpenes from the fruits of Vitex rotundifolia.
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A new labdane-type diterpene, vitexifolin A (1), a new clerodane-type diterpene, vitexifolin B (2), a new abeoabietane-type diterpene, vitexifolin C (3), and two new norlabdane-type diterpenes, vitexifolin D (4) and vitexifolin E (5), were isolated from the fruits of Vitex rotundifolia, along with a
Flavonoids from Vitex trifolia L. inhibit cell cycle progression at G2/M phase and induce apoptosis in mammalian cancer cells.
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Six flavonoids, persicogenin (1), artemetin (2), luteolin (3), penduletin (4), vitexicarpin (5) and chrysosplenol-D (6), have been isolated for the first time as new cell cycle inhibitors from Vitex trifolia L., a Chinese folk medicine used to treat cancers, through a bioassay-guided separation
Effects of Vitex trifolia L. leaf extracts and phytoconstituents on cytokine production in human U937 macrophages.
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