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Stranica 1 iz 105 rezultatima
Anti-proliferative neolignans from Saururus chinensis against human cancer cell lines.
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Activity-guided fractionation of an 80% EtOH extract from the aerial parts of Saururus chinensis led to isolation of three anti-proliferative neolignans (1-3) along with four flavonoids (4-7) and four aristolactams (8-11). Their chemical structures were identified by analysis of spectroscopic data.
Two neolignans from Perilla frutescens and their inhibition of nitric oxide synthase and tumor necrosis factor-alpha expression in murine macrophage cell line RAW 264.7.
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Two neolignans were isolated from leaves of Perilla frutescens (Labiatae) as inhibitors of nitric oxide syntheses (IC50 5.9 microM and 53.5 microM, respectively) and tumor necrosis factor-alpha in lipopolysaccharide-activated RAW 264.7 cells. Their structures were identified as
Studies on inhibitors of skin tumor promotion, IX. Neolignans from Magnolia officinalis.
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Three neolignans, known as magnolol [1], honokiol [2] and the new monoterpenylmagnolol [3], were isolated from the bark of Magnolia officinalis as inhibitors of Epstein-Barr virus early antigen (EBV-EA) activation induced by 12-O-tetradecanoylphorbol-13-acetate (TPA). The structure of 3 was
Cytotoxicity of neolignans identified in Saururus chinensis towards human cancer cell lines.
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The cytotoxicity of compounds derived from the aerial parts of Saururus chinensis towards 24 cancer model and six normal cell lines was examined by MTT assay and compared with those of the anticancer agents cisplatin and doxorubicin. The active principles were characterized as the neolignans
Lignans and Neolignans with Antioxidant and Human Cancer Cell Proliferation Inhibitory Activities from Cinnamomum bejolghota Confirm Its Functional Food Property
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In the aim to evaluate the functional food property of Cinnamomum bejolghota, seven new lignans and neolignans, bejolghotins A-G (1-4 and 9-11), along with 14 known ones (5-8 and 12-21), were isolated and their structures including
Gardenifolins A-H, Scalemic Neolignans from Gardenia ternifolia: Chiral Resolution, Configurational Assignment, and Cytotoxic Activities against the HeLa Cancer Cell Line.
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From the tropical plant Gardenia ternifolia Schumach. and Thonn. (Rubiaceae), eight stereoisomeric 2,3-dihydrobenzo[b]furan neolignans, named gardenifolins A-H (1a-d and 2a-d), were isolated and fully structurally characterized. Reversed-phase chromatography of a stem bark extract afforded two
Purified vitexin compound 1, a new neolignan isolated compound, promotes PUMA-dependent apoptosis in colorectal cancer.
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Purified vitexin compound 1 (VB1, a neolignan isolated and extracted from the seed of Chinese herb Vitex negundo) is an effective antitumor agent and exhibits promising clinical activity against various cancers including colorectal cancer. However, it remains unknown about the precise underlying
Apoptosis-inducing and antitumor activity of neolignans isolated from Magnolia officinalis in HeLa cancer cells.
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Two neolignans, 4'-methoxymagndialdehyde (1) and magnaldehyde B (2), were isolated from the stem bark of Magnolia officinalis (Magnoliaceae), evaluated for apoptosis-inducing effects in human cervical epitheloid carcinoma HeLa cells. The apoptosis-inducing activity of compounds 1 and 2 were assessed
Neolignans from Saururus chinensis inhibit PC-3 prostate cancer cell growth via apoptosis and senescence-like mechanisms.
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This study investigated the anticancer activity and related mechanisms of neolignans, especially threo, erythro-manassantin A (compound 2), which are isolated from Saururus chinensis, in PC-3 cells. Compound 2 strongly inhibited the proliferation of PC-3 cells in a dose-dependent manner. Different
Magnolol: A Neolignan from the Magnolia Family for the Prevention and Treatment of Cancer.
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The past few decades have witnessed widespread research to challenge carcinogenesis; however, it remains one of the most important health concerns with the worst prognosis and diagnosis. Increasing lines of evidence clearly show that the rate of cancer incidence will increase in future and will
Antimicrobial and cytotoxic activities of neolignans from Magnolia officinalis.
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In the light of the steady increase of infections related to vancomycin-resistant enterococci (VRE) and methicillin-resistant Staphylococcus aureus (MRSA), the medicinal plant Magnolia officinalis was subjected to bioassay-directed fractionation, which led to the isolation of the known neolignans
Chemodiversity of Cirsium fruits: Antiproliferative lignans, neolignans and sesquineolignans as chemotaxonomic markers.
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While analyzing the fruit composition of nine European Cirsium species representing three sections (i.e., Cephalonoplos, Chamaeleon and Eriolepis), four lignans, three neolignans and three sesquineolignans were determined and used as chemotaxonomic markers. Among them, desmethyl balanophonin and
Cytotoxic neolignans and butanolides from Machilus obovatifolia.
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From the chloroform-soluble portion of the stem wood of Machilus obovatifolia, one new neolignan, perseal F (1), four known neolignans, perseal G (2), licarin A, licarin B, acuminatin, two butanolides, linderanolide E and isolinderanolide E, two steroids, beta-sitosterol,
Bioactive constituents from Chinese natural medicines. XIV. New glycosides of beta-carboline-type alkaloid, neolignan, and phenylpropanoid from Stellaria dichotoma L. var. lanceolata and their antiallergic activities.
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A new beta-carboline-type alkaloidal glycoside, glucodichotomine B, four new neolignan glycosides, dichotomosides A, B, C, and D, and a new phenylpropanoid glycoside, dichotomoside E, were isolated from a Chinese natural medicine, the roots of Stellaria dichotoma L. var. lanceolata. The structures
8-9' linked neolignans with cytotoxicity from Alpinia conchigera.
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Five new 8-9' linked neolignans conchigeranals A-E (1-5), together with three known compounds galanganal (6), galanganols A (7) and B (8), were isolated from the whole plant of Alpinia conchigera. Their structures were established by spectroscopic analysis, including 2D-NMR spectroscopic techniques.
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