aster/antikancerogeno

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Astins A and B, antitumor cyclic pentapeptides from Aster tataricus.

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Two novel antitumor chlorine- and alloThr-containing cyclic pentapeptides, named astins A and B, both of which were isomers and took a cis configuration in one of the amide bonds, were isolated from Aster tataricus together with astin C. Their structures were solved by spectroscopic analysis and

Solution forms of antitumor cyclic pentapeptides with 3,4-dichlorinated proline residues, astins A and C, from Aster tataricus.

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Conformational analysis of antitumor cyclic pentapeptides, astins A (1) and C (3), was made by a combination of NMR and computational techniques. These results indicated that the backbone conformations of 1 and 3, with lower activity than astin B (2), were different from that of 2. The backbone

ANTI-CANCER ACTIVITY OF ASTER TATARICUS ON SCC-9 HUMAN ORAL SQUAMOUS CARCINOMA.

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BACKGROUND Oral squamous carcinoma is a head and neck cancer, which is one of the types of malignant cancers. Present study evaluates the anticancer activity of Aster tataricus (AT) on SCC-9 human oral squamous carcinoma. METHODS Ethanol extract of AT was prepared by a standard procedure of

Antitumor astins originate from the fungal endophyte Cyanodermella asteris living within the medicinal plant Aster tataricus.

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Medicinal plants are a prolific source of natural products with remarkable chemical and biological properties, many of which have considerable remedial benefits. Numerous medicinal plants are suffering from wildcrafting, and thus biotechnological production processes of their natural products are

Cyclic peptides from higher plants. XXVIII. Antitumor activity and hepatic microsomal biotransformation of cyclic pentapeptides, astins, from Aster tataricus.

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Antitumor activities on Sarcoma 180A of a series of cyclic pentapeptides, astins, isolated from the roots of Aster tataricus, were examined. The activities on various congeners of the dichlorinated proline residues prepared by chemical conversion and a hepatic microsomal biotransformation in rats

Induction of apoptosis and G1 phase cell cycle arrest by Aster incisus in AGS gastric adenocarcinoma cells.

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In recent decades, various bioactive compounds from plants have been investigated for their potential use in the treatment of diseases in humans. Aster incisus extract (AIE) is the extract of a common plant that is mostly found in Asia. It has traditionally been used for medicinal purposes in South

Pentacyclic triterpenoids from Aster ageratoides var. pilosus.

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Two new pentacyclic triterpenoids, 2beta,3beta,16alpha-trihydroxyl-24alpha-al-olean-12-en-28-oic acid (1), 2beta,3beta-dihydroxyl-16-O-beta-D-glucopyranose-24alpha-al-olean-12-en-28-oic acid (2) and two known pentacyclic triterpenoids were isolated from the roots of Aster ageratoides var. pilosus.

Antioxidant activity and anti-adipogenic effects of wild herbs mainly cultivated in Korea.

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Wild herbs, which are edible plants that grow in mountainous areas, have diverse biological effects such as anti-obesity and anti-cancer activities. The aim of this study was to evaluate the total phenolic and flavonoid contents as well as the antioxidant activity of methanol extracts of Aster

The Effect of Pectinase-Assisted Extraction on the Physicochemical and Biological Properties of Polysaccharides from Aster scaber.

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The edible and medicinal perennial herb Aster scaber is known to have anticancer, antioxidant, and immunomodulatory properties. However, the biological effects of its polysaccharides are not well understood. Here, we aimed to extract novel polysaccharides with enhanced biological properties from

Germacrone inhibits adipogenesis and stimulates lipolysis via the AMP-activated protein kinase signalling pathway in 3T3-L1 preadipocytes.

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OBJECTIVE In a previous study, we reported that Aster spathulifolius Maxim extract (ASE) inhibited lipid accumulation and adipocyte differentiation in 3T3-L1 cells. Of the components in ASE, germacrone (GM) was identified as a potent bioactive constituent. GM is known for its anticancer and

α-Spinasterol from Melandrium firmum attenuates benign prostatic hyperplasia in a rat model.

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Spinasterol, a biologically active compound, exhibits a number of pharmacological activities, including antitumor, antiulcerogenic and anticarcinogenic activity, and originates from the aerial parts of Aster scaber Thunb (Asteraceae). The present study investigated whether α-spinasterol isolated

The phenylpropanoids of Aster flaccidus.

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Aster flaccidus bge has been used as traditional medicine in northwestern China. Two new phenylpropanoids (1-2) including one lignan: (7'R, 8S)-9'-lariciresinol-(alpha-methyl)-butanoate (1), 5,9-dimethoxyl-7-(alpha-methyl)-butanoxyl-phenyl-2E-propenol-(alpha-methyl)-butanoate (2) isolated from the

1-oxoeudesm-11(13)-ene-12,8α-lactone-induced apoptosis via ROS generation and mitochondria activation in MCF-7 cells.

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A novel eudesmane-type sesquiterpene compound, 1-oxoeudesm-11(13)-eno-12,8a-lactone (OEL), was isolated from Aster himalaicus. Its effect on apoptosis in human breast adenocarcinoma (MCF-7) cells was investigated. MTT assay showed that OEL substantially reduced the viability of KB, MCF-7, U87, A172,

Preliminary evaluation for cancer chemopreventive and cytotoxic potential of naturally growing ethnobotanically selected plants of Pakistan.

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BACKGROUND Natural products are a very productive source of leads for the development of medicines. Six Pakistani plants were chosen for study based on ethnobotanical data. OBJECTIVE Exploration of important medicinal plants of Pakistan for cancer treatment. METHODS The crude extracts of the six

Taxol effect: bizarre mitotic figures (abnormal spindle asters) in a malignant peritoneal effusion: report of a case.

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Taxol (Paclitaxol) is a diterpenoid taxane derivative found in the bark and needles of the Western yew, Taxus brevifolia, indigenous to the old growth forests of the Pacific Northwest. As compared with other antineoplastic agents (vinca alkaloids and colchicine) that enhance microtubule disassembly,

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