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Sida 1 från 309 resultat
Isolation of saponins with the inhibitory effect on nitric oxide, prostaglandin E2 and tumor necrosis factor-alpha production from Pleurospermum kamtschaticum.
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As an attempt to search for bioactive natural products exerting antiinflammatory activity, we have isolated two saponins were isolated from the aerial portion of Pleurospermum kamtschaticum (Umbelliferae) by nitrite assay activity-directed chromatographic fractionation. They were identified as
One compound of saponins from Disocorea zingiberensis protected against experimental acute pancreatitis by preventing mitochondria-mediated necrosis.
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Acute pancreatitis (AP) is a painful inflammatory disorder of the exocrine pancreas, ranking as the most common gastrointestinal reasons for hospitalization with no specific therapy currently. Diosgenyl saponins extracted from natural products and diosgenin or its derivatives have been shown to
Effect of saponin from Quillaja saponaria (molina) on antibody, tumour necrosis factor and interferon-gamma production.
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Saponin has been described to contain adjuvant activity in vaccination protocols, in protection against disease, and on humoral immune response. In this paper we describe the effect of a pure saponin from Quillaja saponaria (molina) on the immune response elicited in mice by two antigens, BSA and
In silico studies for the interaction of tumor necrosis factor-alpha (TNF-α) with different saponins from Vietnamese ginseng (Panax vietnamesis).
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Tumor necrosis factor-alpha (TNF-α) is a cytokine that plays an important role in inflammatory process and tumor development. Recent studies demonstrate that triterpene saponins from Vietnamese ginseng are efficient inhibitors of TNF-α. But the interactions between TNF-α and the saponins are still
Efficient synthesis of trisaccharide saponins and their tumor cell killing effects through oncotic necrosis.
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To investigate the relationship of cytotoxicity and saponins with varied aglycones, based on the structure of indioside E 1, a natural derived anti-tumor active ingredient from Chinese medicinal plant Solanum indicum L., five novel saponins 2-6 bearing the same trisaccharide moiety together with 1
Total Astragalus saponins attenuates CVB3-induced viral myocarditis through inhibiting expression of tumor necrosis factor α and Fas ligand.
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Background
To investigate the therapeutic effect of total Astragalus saponins (AST) against viral myocarditis in animal and cell models.Triterpenoid saponins of Pulsatilla koreana root have inhibition effects of tumor necrosis factor-α secretion in lipopolysaccharide-induced RAW264.7 cells.
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In the present study, a new oleanane-type triterpenoid saponin, pulsatilloside F (1), along with 21 known compounds (2-22), were isolated from the root of Pulsatilla koreana. Their chemical structures were elucidated by mass, (1)H-, (13)C-NMR, correlation spectroscopy (COSY), heteronuclear multiple
A novel steroidal saponin glycoside from Fagonia indica induces cell-selective apoptosis or necrosis in cancer cells.
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Fagonia indica is a small spiny shrub of great ethnopharmacological importance in folk medicine. The aqueous decoction of aerial parts is a popular remedy against various skin lesions, including cancer. We used a biological activity-guided fractionation approach to isolate the most potent fraction
Protective effects of total saponins of panax notoginseng on steroid-induced avascular necrosis of the femoral head in vivo and in vitro.
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This research was designed to investigate the protective effects of TSPN on steroid-induced avascular necrosis of the femoral head (ANFH) and the likely mechanisms of those effects. As an in vivo study, TSPN was shown to be protective against steroid-induced ANFH due to the upregulation of VEGF-A.
The saponin DT-13 attenuates tumor necrosis factor-α-induced vascular inflammation associated with Src/NF-кB/MAPK pathway modulation.
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This study aimed to explore the effect of DT-13 (25(R,S)-ruscogenin- 1-O- [β-d-glucopyranosyl- (1→2)][β-d-xylopyranosyl-(1→3)]-β -d- fucopyranoside) on tumor necrosis factor (TNF)-α-induced vascular inflammation and the potential molecular mechanisms. In vitro, DT-13 suppressed TNF-α-induced
Inhibition of tumor necrosis factor-alpha-induced expression of adhesion molecules in human endothelial cells by the saponins derived from roots of Platycodon grandiflorum.
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Adhesion molecules play an important role in the development of atherogenesis and are produced by endothelial cells after being stimulated with various inflammatory cytokines. This study examined the effect of saponins that were isolated from the roots of Platycodon grandiflorum A. DC
A ginseng saponin metabolite suppresses tumor necrosis factor-alpha-promoted metastasis by suppressing nuclear factor-kappaB signaling in murine colon cancer cells.
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SC-514, an inhibitor of IkappaB kinase beta (IKKbeta), blocked the TNF-alpha-induced activation of nuclear factor-kappaB (NF-kappaB) as well as the TNF-alpha-promoted metastasis of murine colon adenocarcinoma cells. We investigated the effect of 20-O-beta-D-glucopyranosyl-20(S)-protopanaxadiol (M1),
[Effects of panax notoginseng saponins on the expression of tumor necrosis factor alpha and secretion phospholipase A2 in rats with liver fibrosis].
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Therapeutic Effect of Saponin Rich Fraction of Achyranthes aspera Linn. on Adjuvant-Induced Arthritis in Sprague-Dawley Rats.
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Objective. Achyranthes aspera Linn. (AA) is used in folklore for the treatment of various inflammatory ailments and arthritis like conditions. Anti-inflammatory activity of saponin rich (SR) fraction of AA has been previously reported. The objective of this study was to assess the antiarthritic
Rapid determination of cell-associated tumor necrosis factor production by flow cytometry.
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BACKGROUND
Tumor necrosis factor (TNF) is a cytokine implicated in many disease states, including septic shock and transplant rejection. Regulation of TNF production is complex, and under certain conditions TNF is expressed in cells, but not released. Determination of TNF, particularly on cells, may
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