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Carica papaya leaves and cancer prevention: An overview

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Carica papaya is an essential medicinal plant having anticancer activities through diverse mechanisms and is not so far thoroughly investigated. In this review, we have summarized the systematic research outputs of different parts of the papaya plant extracts and elaborated the role of its

Wilms tumor: does tumorectomy leave neoplastic tissue residual?

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Reading the tea leaves of tumor-mediated immunosuppression.

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Polyphenol E, available as Polyphenon E, is a green tea extract whose activity can be benchmarked to the presence of specific catechins such as epigallocatechin 3-gallate (EGCG). Herein, Polyphenon E is shown to reverse myeloid-derived suppressor cell activity, linking the activity of a natural

Anti-cancer activities of Brassica juncea leaves in vitro.

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Mustard (Brassica juncea) leaves are commonly consumed in different Asian and African countries. Cancer is a major burden of disease worldwide, and the colorectal and lung cancers are the leading cause of morbidity and mortality among cancers. In the current study, we aimed to investigate the

Cytotoxic limonoids from Trichilia americana leaves.

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Ten cedrelone limonoids were isolated from the leaves of Trichilia americana. These compounds include americanolides A-D (1-4), 1,2-dihydrodeacetylhirtin (5), 1α-hydroxy-1,2-dihydrodeacetylhirtin (6), 1α-hydroxy-1,2-dihydrohirtin (7), 1α-methoxy-1,2-dihydrodeacetylhirtin (8),

Cytotoxic constituents from Anagyris foetida leaves.

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Anagyris foetida extracts were investigated in preliminary cytotoxic tests against two tumour cell lines. Chromatographic separations on active extracts led to the isolation of two alkaloids, anagyrine (1) and baptifoline (2), as well of isorhamnetin (3) and syringin 4-O-beta-D-glucopyranoside (4).

Potential cancer chemopreventive constituents of the leaves of Macaranga triloba.

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Activity-guided fractionation of the leaves of Macaranga triloba, using an in vitro bioassay based on the inhibition of cyclooxygenase-2, resulted in the isolation of a rotenoid, 4,5-dihydro-5'alpha-hydroxy-4'alpha-methoxy-6a,12a-dehydro-alpha-toxicarol (1), as well as 12 known compounds,

Hanford: study leaves questions about increased thyroid cancer rates unanswered.

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Sick leave of spouses to cancer patients before and after diagnosis.

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BACKGROUND The impact of cancer on spouses of cancer patients may be considerable in many aspects. Our objective was to evaluate sick leave in spouses of cancer patients before and after the diagnosis. METHODS Using Swedish population-based registries, we studied sick leave of spouses to patients

Pentacyclic triterpenoids from leaves of Excoecaria agallocha.

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A new oleanane-type triterpenoid (1) and five known pentacyclic triterpenoids (2-6) were isolated from the leaves of Excoecaria agallocha. Their structures were elucidated by spectroscopic analyses. The new compound was characterized as 3beta-[(2E,4E)-5-oxo-decadienoyloxy]-olean-12-ene (1).

Diterpenes from the leaves of Croton zambesicus.

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Two new trachylobane- and one isopimarane-type diterpenoids: ent-18-hydroxy-trachyloban-3-one; ent-trachyloban-3-one; isopimara-7,15-dien-3beta-ol, were isolated from the leaves of Croton zambesicus, together with trans-phytol, beta-sitosterol, alpha-amyrin and stigmasterol. The structures were

A new sesquiterpene lactone from yacon leaves.

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The chemical constituents of 60% EtOH extract of yacon leaves were separated to yield a new compound, together with four known compounds, which were isolated for the first time from yacon. The new compound was characterised and named as chlorodalin (1) on the basis of NMR (1D and 2D), HR-MS and

Alkaloids from the leaves of Daphniphyllum subverticillatum.

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Four new alkaloids, 17-hydroxydaphnigraciline (1), subdaphnidine A (2), daphnezomine L methyl ester (3), and 11-hydroxycodaphniphylline (4), along with 24 known analogues, were isolated from the leaves of Daphniphyllum subverticillatum. The structures of 1-4 were elucidated on the basis of

Prenylflavonols from the leaves of Macaranga sampsonii.

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Four novel prenylflavonols, macaranones A-D (1-4), were isolated from the leaves of Macaranga sampsonii. Their structures were elucidated on the basis of spectroscopic data. Macaranones C (3) and D (4) represent first two examples of flavonols having an unusual peltogynoid skeleton which is formed

Acylphloroglucinols from the leaves of Callistemon viminalis.

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A phytochemical study on the leaves of Callistemon viminalis, a widely distributed ornamental and medicinal plant of agricultural importance in China, resulted in the isolation of eleven acylphloroglucinols, including six new ones named callistenones F-K (1-6), as well as five known congeners. Their

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