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erythrodiol/cancro
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Página 1 a partir de 20 resultados
3-β-Εrythrodiol isolated from Conyza canadensis inhibits MKN‑45 human gastric cancer cell proliferation by inducing apoptosis, cell cycle arrest, DNA fragmentation, ROS generation and reduces tumor weight and volume in mouse xenograft model.
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The objective of the present study was to investigate the in vitro and in vivo anticancer and apoptotic effects of 3-β-erythrodiol, a plant-derived triterpene against MKN-45 human gastric cancer cells. In addition, effects on cellular morphology, cell cycle phase distribution, DNA fragmentation, and
WITHDRAWN: Erythrodiol-3-acetate isolated from Styrax japonica elicits the inhibition of UV-induced gelatinases B in cultured human keratinocyte cells.
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Methanol and aqueous extracts of Styrax japonica Sieb. et Zucc used traditionally for the treatments of skin elastic materials were screened in vitro for the gelatinases B inhibitor actions. Erythrodiol-3-acetate (E) from the stem barks of S. japonica showed significant gelatinase B inhibition in
[Synthesis and antitumor activity of betulin, erythrodiol and uvaol aminopropoxy derivatives].
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The synthesis of aminopropoxy derivatives of betulin, erythrodiol, uvaol and oleantriol via cyanoethylation of triterpenoids hydroxyl groups and subsequent reduction of cyanoethyl fragments is described. High and specific in vitro antitumor activity (cytotoxicity) of
Anti-inflammatory and anticancer activities of erythrodiol-3-acetate and 2,4-di-tert-butylphenol isolated from Humboldtia unijuga.
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Humboldtia unijuga Bedd., endemic to Agasthyamala in Western Ghats in India, is traditionally used by local Kani tribes for chicken pox, head ache and snake bite. This study reports the isolation of erythrodiol-3-acetate (HU-1) and 2,4-di-tert-butylphenol (HU-2) from H. unijuga roots and their
Constituents of Compositae plants III. Anti-tumor promoting effects and cytotoxic activity against human cancer cell lines of triterpene diols and triols from edible chrysanthemum flowers.
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Fifteen pentacyclic triterpene diols and triols, consisting of: six taraxastanes, faradiol (1), heliantriol B0 (2), heliantriol C (3), 22alpha-methoxyfaradiol (4), arnidiol (5), and faradiol alpha-epoxide (6); five oleananes, maniladiol (7), erythrodiol (8), longispinogenin (9), coflodiol (10), and
Terpenoids induce cell cycle arrest and apoptosis from the stems of Celastrus kusanoi associated with reactive oxygen species.
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Bioguided fractionation of the CHCl(3) extracts obtained from Celastrus kusanoi stems led to isolation of two new terpenoids, 3beta-hydroxy-11,14-oxo-abieta-8,12-diene (1) and 3beta-trans-(3,4-dihydroxycinnamoyloxy)-11alpha-methoxy-12-ursene (2), and four known compounds characterized by
Chemical constituents and cytotoxic effect of the main compounds of Lythrum salicaria L.
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Lythrum salicaria L. (Lythraceae), a herbaceous plant growing widely in Iran, has been well known for many centuries for its astringent and styptic properties. A phytochemical investigation of this plant, based on spectroscopic analysis, identified fourteen compounds: 5-hydroxypyrrolidin-2-one (1),
New cytotoxic spirostane saponin and biflavonoid glycoside from the leaves of Acacia saligna (Labill.) H.L. Wendl.
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New naturally occurring spirostane saponin (25S)-5β-spirostan-3β-yl-3-O-β-D-xylopyranosyl(1 → 3)-O-β-D-xylopyranosyl(1 → 4)-β-D-galactopyranoside (6) and biflavonoid glycoside myricetin-3-O-rhamnoside (C7-O-C7) myricetin-3-O-rhamnoside (4) along with a series of known compounds erythrodiol (1),
Pentacyclic triterpenoids and their cytotoxicity from the stem bark of Styrax japonica S. et Z.
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The methylene chloride soluble fraction of MeOH extract from the stem bark of Styrax japonica S. et Z. (Styracaceae) showed significant cytotoxicity by SRB method against five human tumor cell lines. Four known pentacyclic triterpenoids, oleanolic aldehyde acetate (1), erythrodiol-3-acetate (2),
Triterpenoid from Styrax japonica SIEB. et ZUCC, and its effects on the expression of matrix metalloproteinases-1 and type 1 procollagen caused by ultraviolet irradiated cultured primary human skin fibroblasts.
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Long term and repeated exposure of ultraviolet light on the skin often induces chronic skin diseases such as skin cancer as well as photoaging, and the mechanisms of these skin damages are closely associated with up-regulation of matrix metalloproteinase's (MMPs) activities. The methylene chloride
Triterpenoidal saponins from the fruits of Gleditsia caspica with proapoptotic properties.
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Three previously undescribed oleanane-type triterpenoidal saponins named caspicaosides L-N were isolated from the fruits of Gleditsia caspica Desf. The aglycons of these saponins were echinocystic acid, erythrodiol and 12-oleanene-3,28,30-triol. Caspicaoside L is a bisdesmosidic saponin acylated
Biological Activities of Triterpenoids and Phenolic Compounds from Myrica cerifera Bark.
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Seven triterpenoids, 1 - 7, two diarylheptanoids, 8 and 9, four phenolic compounds, 10 - 13, and three other compounds, 14 - 16, were isolated from the hexane and MeOH extracts of the bark of Myrica cerifera L. (Myricaceae). Among these compounds, betulin (1), ursolic acid (3), and myricanol (8)
[Chemical constituents from petroleum ether fraction of Swertia chirayita and their activities in vitro].
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The present work is to study the chemical constituents from petroleum ether fraction of Tibetan medicine Swertia chirayita by column chromatography and recrystallization. The structures were identified by physical and chemical properties and spectral data as swerchirin (1), decussatin (2),
[Synthesis and cytotoxicity of triterpenoid seven members cyclic amines].
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Synthesis of 3-deoxy-3a-homo-3a-aza-derivatives of betulin and erythrodiol from betulonic and oleanonic acids was carried out. The most antineoplastic activity with a wide range of action at in vitro testing showed 3-deoxy-3a-homo-3a-aza-28-hydroxy-12(13)-oleanene, which by results of profound
Cytotoxic activities of extracts and compounds from Viscum coloratum and its transformation products by Rhodobacter sphaeroides.
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The bioassay-oriented fractionation of mistletoe crude extracts (MCEE) using 75% ethanol and culture products of mistletoe transformed by Rhodobacter sphaeroides, a photosynthetic bacterium (PSBT), revealed that the high cytotoxic activities were due to the petroleum ether extracts (PEs) and the
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