quassia amara/vėžys

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Antitumor Agents. 282. 2'-(R)-O-acetylglaucarubinone, a quassinoid from Odyendyea gabonensis as a potential anti-breast and anti-ovarian cancer agent.

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A new quassinoid, designated 2'-(R)-O-acetylglaucarubinone (1), and seven known quassinoids (2-8) were isolated, using bioactivity-guided separation, from the bark of Odyendyea gabonensis (Pierre) Engler [syn. Quassia gabonensis Pierre]. The structure of 1 was determined by spectroscopic analysis

Evaluation of inhibitory activities of plant extracts on production of LPS-stimulated pro-inflammatory mediators in J774 murine macrophages.

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Whole plant methanolic extracts of 14 traditionally used medicinal herbs were evaluated for their anti-inflammatory activity. Extracts of Grindelia robusta, Salix nigra, Arnica montana, and Quassia amara showed up to 4.5-fold inhibition of nitric oxide (NO) production in the J774 murine macrophage

Quassia "biopiracy" case and the Nagoya Protocol: A researcher's perspective.

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Biopiracy accusations are common in the world of biodiversity research. At the end of 2015, a French NGO accused researchers from the Institut de Recherche pour le Développement (IRD) of biopiracy. These researchers had applied for a patent for a natural bioactive molecule against malaria and

Quassinoids from the leaves of the Madagascan Simaroubaceae Samadera madagascariensis.

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An investigation of the leaves of the Madagascan Simaroubaceae Samadera madagascariensis has yielded three C18 quassinoids, 5beta,6-dihydrosamaderine A, 2-chlorosamaderine A, and samaderolactone A, and a C19 quassinoid, 3,4beta-dihydrosamaderine C, together with the known quassinoids samaderine A,

Development and validation of liquid chromatography combined with tandem mass spectrometry methods for the quantitation of simalikalactone E in extracts of Quassia amara L. and in mouse blood.

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BACKGROUND Simalikalactone E (SkE) from Quassia amara, has been proved to be a valuable anti-malarial and anti-cancer compound. As SkE is very scarce, methods of quantitation are needed in order to optimise its isolation process and to determine pharmacokinetic data. OBJECTIVE To validate methods

Promoting potential of a Jamaica quassia extract in a rat medium-term hepatocarcinogenesis bioassay.

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Jamaica quassia extract (JQE), a natural bittering agent, was investigated for hepatocarcinogenesis-promoting potential using a medium-term liver bioassay system. F344 male rats were given a single intraperitoneal injection of diethylnitrosamine (200mg/kg body weight) and then starting 2 weeks

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