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14 resultados
Antitumor and immunomodulatory activity of genkwanin on colorectal cancer in the APC(Min/+) mice.
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Colorectal cancer is the third most common malignant tumor with high morbidity and mortality. To evaluate the antitumor effect of genkwanin on colorectal cancer enhanced by western high-fat diet, we investigated the activity of genkwanin on HT-29 and SW-480 human colorectal cancer lines in vitro and
Preparation of hydroxy genkwanin nanosuspensions and their enhanced antitumor efficacy against breast cancer
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Hydroxy genkwanin (HGK), a flavonoid compound from natural resources, showed good inhibition against the growth of breast tumor cells. However, the poor solubility restricted the further study and the in vivo drug delivery of HGK. We prepared HGK nanosuspensions by antisolvent precipitation
STUDIES ON A SIMPLE AND EFFICIENT METHOD FOR LARGE-SCALE PREPARATION OF GENKWANIN FROM DAPHNE GENKWA SIEB. ET ZUCC. USING NORMAL-PHASE FLASH CHROMATOGRAPHY.
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Genkwanin, a flavonoid which has anti-oxidant and anti-tumor activities, was isolated and purified from flowers of Daphne genkwa Sieb. et Zucc. in a large-scale by normal-phase flash chromatography (NPFC). Dried flower buds were extracted with methanol at room temperature and concentrated. The
Genkwanin nanosuspensions: a novel and potential antitumor drug in breast carcinoma therapy.
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Recently, genkwanin (GKA) has been shown to display in vitro antitumor activity against some cancer cells, but its poor solubility restricted the in vivo study and further investigation of its antitumor therapeutic efficacy. In this paper, genkwanin nanosuspensions (GKA-NSps) were successfully
Flavonoids inhibit cell proliferation and induce apoptosis and autophagy through downregulation of PI3Kγ mediated PI3K/AKT/mTOR/p70S6K/ULK signaling pathway in human breast cancer cells.
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Anticancer activities of flavonoids derived from Tephroseris kirilowii (Turcz.) Holub. were evaluated in human cancer cells. We isolated and identified, for the first time, eight flavonoids from T. kirilowii and found that three of them (IH: isorhamnetin, GN: genkwanin, and Aca: acacetin) inhibited
Flavonoids and sesquiterpenes from Tecurium ramosissimum promote antiproliferation of human cancer cells and enhance antioxidant activity: a structure-activity relationship study.
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Fractionation of the chloroformic extracts from Teucrium ramosissimum leaves resulted in the isolation of three flavonoids: genkwanin (1), cirsimaritin (2) and 4',7-dimethoxy apigenin (4) and one sesquiterpene: β-eudesmol (3). The structures were determined using data obtained from (1)H and (13)C
Antileishmanial Phenylpropanoids from the Leaves of Hyptis pectinata (L.) Poit.
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Hyptis pectinata, popularly known in Brazil as "sambacaitá" or "canudinho," is an aromatic shrub largely grown in the northeast of Brazil. The leaves and bark are used in an infusion for the treatment of throat and skin inflammations, bacterial infections, pain, and cancer. Analogues of rosmarinic
Isolation of anticancer constituents from flos genkwa (Daphne genkwa Sieb.et Zucc.) through bioassay-guided procedures.
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BACKGROUND
Flos Genkwa (yuanhua in Chinese), the dried flower buds of Daphne genkwa Sieb.et Zucc. (Thymelaeaceae), is a traditional Chinese medicinal herb mainly used for diuretic, antitussive, expectorant, and anticancer effects. However, systematic and comprehensive studies on Flos Genkwa and its
On the Physicochemical Characteristics and Applications of an "Undesirable" Pyrenean Thorny Cushion Dwarf: Echinospartum horridum (Vahl) Roth
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Small evergreen shrubs of the family Fabaceae represent a large proportion of current Mediterranean mountain vegetation. Their low pastoral value and tendency for encroachment makes these plants undesirable. In this paper, the thermal and chemical characteristics of Echinospartum horridum, a
Discovery of natural product chemopreventive agents utilizing HL-60 cell differentiation as a model.
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Terminal differentiation of human promyelocytic leukemia (HL-60) cells can be induced by a variety of chemical agents and this process can be monitored readily by the generation of morphologically, histochemically, and functionally mature granulocytes and monocytes/macrophages. The availability of
Cytotoxic constituents from the fruiting branches of Callicarpa americana collected in southern Florida.
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Bioassay-guided fractionation of the combined fruits, leaves, and twigs (fruiting branches) of Callicarpa americana, collected from a plot in a forested area in southern Florida, led to the isolation of six new clerodane diterpenes (1-6) and eight known compounds. The structures of 1-6
Antibacterial and anti-inflammatory activities of an extract, fractions, and compounds isolated from Gochnatia pulchra aerial parts.
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This paper reports on the in vitro antibacterial and in vivo anti-inflammatory properties of a hydroethanolic extract of the aerial parts of Gochnatia pulchra (HEGP). It also describes the antibacterial activity of HEGP fractions and of the isolated compounds genkwanin, scutellarin, apigenin, and
Flavonoids and phenolic compounds from Rosmarinus officinalis.
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A new flavonoid, 6''-O-(E)-feruloylhomoplantaginin (1), and 14 known compounds, 6''-O-(E)-feruloylnepitrin (2), 6''-O-(E)-p-coumaroylnepitrin (3), 6-methoxyluteolin 7-glucopyranoside (4), luteolin 3'-O-beta-D-glucuronide (5), luteolin 3'-O-(3''-O-acetyl)-beta-D-glucuronide (6), kaempferol (7),
Aquilaria spp. (agarwood) as source of health beneficial compounds: A review of traditional use, phytochemistry and pharmacology.
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BACKGROUND
Aquilaria spp. (agarwood) has been a part of Ayurvedic and Traditional Chinese Medicine for centuries. Agarwood has also been used as a traditional medicine in Southeast Asian countries, Bangladesh and Tibet. Its common uses include the treatment of joint pain, inflammatory-related
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