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Phytosterols and cholesterol in malignant and benign breast tumors.

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Tissue phytosterol and cholesterol levels in 10 benign and 8 malignant breast tumors were quantitated to reexamine the hypothesis that malignant tumors had distinctive phytosterol content. Phytosterols were present in 9 of 10 benign and 7 of 8 malignant breast tumors. Mean (+/- S.E.) cholesterol,

Synthetic stigmasterol derivatives inhibit capillary tube formation, herpetic corneal neovascularization and tumor induced angiogenesis: Antiangiogenic stigmasterol derivatives.

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Angiogenesis plays a critical role in initiating and promoting several diseases, such as cancer and herpetic stromal keratitis (HSK). Herein, we studied the inhibitory effect of two synthetic stigmasterol derivatives on capillary tube-like structures and on cell migration in human umbilical vein

Hedyotis diffusa water extract diminished the cytotoxic effects of chemotherapy drugs against human breast cancer MCF7 cells.

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Hedyotis diffusa is a Chinese herbal medicine widely used in combination with other herbal medicines such as Scutellaria barbata to treat various types of cancer. Late-stage and recurrent cancer patients usually use H. diffusa during chemotherapy in expecting to achieve additive or synergistic

Chemopreventive and anti-breast cancer activity of compounds isolated from leaves of Abrus precatorius L.

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The present study focuses on isolation and evaluation of the anti-cancer activity of compounds from the leaves of Abrus precatorius. The bioassay-directed strategy was adopted using chromatographic, gas chromatographic-mass spectrum analysis, nuclear magnetic resonance and X-ray crystallography

Proapoptotic and Antiangiogenic Activities of Arctium Lappa L. on Breast Cancer Cell Lines

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In this study, the bioactivity-guided fractionation was conducted on the aerial parts of Arctium lappa L. and then the extracts were tested in vitro on breast cancer (MCF-7), colorectal cancer (HCT-116), and normal cells (EA.hy926). The n-hexane fraction (EHX) of the ethanolic extract

Inhibitory Activity of Extract, Fractions, and Compounds from Zingiber montanum Rhizomes on the Migration of Breast Cancer Cells.

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Zingiber montanum rhizomes are traditionally used for the treatment of numerous human ailments. The present study was carried out to investigate the inhibitory activity of the crude extract, chromatographic fractions, and purified compounds from Z. montanum rhizomes on the migration of

Cytotoxic Properties of the Stem Bark of Citrus reticulata Blanco (Rutaceae).

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The bioassay-guided fractionation of the n-hexane extract of Citrus reticulata Blanco (Rutaceae) stem bark yielded scoparone (1), xanthyletin (2), lupeol (3), β-amyrin (4), stigmasterol (5), β-sitosterol (6) and palmitic acid. The structures of these compounds were determined by comprehensive

Phytochemistry of the mopane, Colophospermum mopane.

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The polyphenolic pool of the heartwood of the mopane, Colophospermum mopane Kirk ex J. Leonard, exhibits extreme diversity and complexity. It comprises a variety of monomeric flavonoids, e.g. flavan-3-ols, flavan-3,4-diols including the mopanols and peltogynols, flavonols, dimeric proanthocyanidins,

Effect of phytosterols on copper lipid peroxidation of human low-density lipoproteins.

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OBJECTIVE Phytosterols and stanols have received much attention in the past several years because of their cholesterol-lowering properties, and several studies have shown a protective effect against cardiovascular disease and colon and breast cancer development. A significant decrease of plasma

Phytosterols: perspectives in human nutrition and clinical therapy.

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Phytosterols (PSs) are a group of plant derived steroid alcohols, with wide occurrence in vegetables and fruits. They are integral components of plant cell membranes, having stabilizing effects on phospholipids bilayer, just like cholesterol in animal cell membranes. Structural resemblance of PSs

Isolation of Phytochemicals from Bauhinia variegata L. Bark and Their In Vitro Antioxidant and Cytotoxic Potential.

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Plants have been the basis of traditional medicine since the dawn of civilizations. Different plant parts possess various phytochemicals, playing important roles in preventing and curing diseases. Scientists, through extensive experimental studies, are playing an important part in establishing the

Antiproliferative activity of caged xanthones from the leaves of Garcinia wightii T. Anderson.

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Two new caged xanthones, wightiic acid (1) 16-O-methyl wightiic acid (2), along with eight known compounds, gaudichaudic acid E (3), isogaudichaudic acid E (4), ursolic acid (5) stigmasterol (6), lupeol (7), glutinol (8), lupenone (9) and stigmasteryl linoleate (10) were isolated from Garcinia

Phytochemicals from Mangifera pajang Kosterm and their biological activities.

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BACKGROUND Mangifera pajang Kosterm is a plant species from the mango family (Anacardiaceae). The fruits are edible and have been reported to have high antioxidant content. However, the detailed phytochemical studies of the plant have not been reported previously. This study investigates the

Anti-Tumor Action, Clinical Biochemistry Profile and Phytochemical Constituents of a Pharmacologically Active Fraction of S. crispus in NMU-Induced Rat Mammary Tumour Model.

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Cancer patients seek alternative remedies such as traditional medicinal plants for safe and effective treatment and help overcome the side effects of conventional therapy. Current knowledge indicates that extracts of Strobilanthes crispus of the Acanthaceae family exhibit potent anticancer

Chemical constituents and in vitro anticancer activity of Typhonium flagelliforme (Araceae).

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OBJECTIVE Typhonium flagelliforme is an indigenous plant of Malaysia and is used by the local communities to treat cancer. This study aims to identify the chemical constituents of Typhonium flagelliforme particularly those which have antiproliferative properties towards human cancer cell

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