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Bladzijde 1 van 20 resultaten
5-Caffeoylquinic acid inhibits invasion of non-small cell lung cancer cells through the inactivation of p70S6K and Akt activity: Involvement of p53 in differential regulation of signaling pathways.
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In the present study, we investigated the effects and molecular mechanism of 5-caffeoylquinic acid (5-CQA), a natural phenolic compound isolated from Ligularia fischeri, on cell invasion, proliferation and adhesion in p53 wild-type A549 and p53-deficient H1299 non-small cell lung cancer (NSCLC)
A mechanistic study on the anti-cancer activity of ethyl caffeate in human ovarian cancer SKOV-3 cells.
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In the present study, we investigated the effect and molecular mechanism of ethyl caffeate (EC), a natural phenolic compound isolated from Ligularia fischeri, on human ovarian cancer cell proliferation and progression. EC-mediated inhibition of cell proliferation in SKOV-3 cells was accompanied by
Ligularia fischeri inhibits endothelial cell proliferation, invasion and tube formation through the inactivation of mitogenic signaling pathways and regulation of vascular endothelial cadherin distribution and matrix metalloproteinase expression.
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Ligularia fischeri (LF) has been used as an edible herb and traditional medicine for the treatment of inflammatory and infectious diseases. In the present study, we report the effects and molecular mechanism of the ethanolic extract of LF on cell proliferation, invasion and tube formation in human
CArcinogenic activity of clivorine, a pyrrolizidine alkaloid isolated from Ligularia dentata.
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The carcinogenic activity of clivorine, a pyrrolizidine alkaloid isolated from Ligularia dentata, was studied in inbred ACI rats. Twelve animals in the experimental group received a 0.005% solution of clivorine in drinking water for 340 days and survived beyond 440 days after the beginning of the
Two new eremophilane Sesquiterpenoides from Ligularia dictyoneura.
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Two new eremophilane sesquiterpenoides, 6α,9α-dihydroxyeremophilenolide (1), and 1β,10β-dihydroxyeremophilenolide (2), along with ten known eremophilane sesquiterpenoides (3-12) were isolated from the aerial parts of Ligularia dictyoneura (Franch.) Hand.-Mazz. Their structures were elucidated by
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
Fischerisin A and B, cytotoxic sesquiterpenoid-geranylhydroquinones from Ligularia fischeri.
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During the course of screening natural sesquiterpenoids for new antitumor agents, two novel compounds, fischerisin A (1) and fischerisin B (2), were isolated from the roots of Ligularia fischeri. Their structures were elucidated by interpretation of their IR, high resolution-mass spectrometry
A preliminary study of the effects of an extract of Ligularia fischeri leaves on type II collagen-induced arthritis in DBA/1J mice.
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The present study was undertaken to determine whether Ligularia fischeri leaf extract (LF) is efficacious against collagen-induced arthritis (CIA) in mice. DBA/1J mice were immunized with bovine type II collagen and treated with LF (100 and 200 mg/kg) for 49 days. Mice were assessed regularly for
Phytochemical investigation and cytotoxic evaluation of the components of the medicinal plant Ligularia atroviolacea.
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A phytochemical investigation of the roots of Ligularia atroviolacea resulted in the isolation of 24 compounds including seven new eremophilanoids named eremophila-3,7(11),8-triene-12,8;14,6alpha-diolide (1), 3beta-(angeloyloxy)eremophil-7(11)-en-12,8beta-olid-14-oic acid (2),
Cytotoxic sesquiterpenoids from Ligularia pleurocaulis.
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The phytochemical investigation of whole plants of Ligularia pleurocaulis led to isolation of five sesquiterpenoids, including an eremophilenolide dimer named biligupleurolide, along with eight known sesquiterpenoids. Their structures were determined by spectroscopic methods including 2D NMR
Cytotoxic sesquiterpenes from Ligularia platyglossa.
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Four sesquiterpene lactones including an eremophilenolide dimer, named as biligulaplenolide, 1, 8beta-hydroxy-1-oxo-(14alpha,15alpha eremophil-7(11),9(10)-dien-12,8alpha-olide, 2, 1-hydroxy-2-oxo-(14alpha,15alpha eremophil-1(10),7(11),8(9)-trien-12,8-olide, 3, 4alpha,8beta,9alpha-trihydroxy-
A new norsesquiterpenoid from Ligularia virgaurea.
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A new eremophilane norsesquiterpenoid (1), together with a known eremophilane sesquiterpenoid (2), was isolated from the leaves of Ligularia virgaurea. The structure of 1 was elucidated by a combination of spectroscopic analysis (IR, 1D NMR, 2D NMR, and HR-ESI-MS), and its absolute configuration was
Sesquiterpenes with various carbon skeletons from Ligularia virgaurea spp. oligocephala.
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Two new 8,9-seco-cacalol-type sesquiterpene lactones, ligulolide C (1 and 2) and six known sesquiterpenes, adenostylide (3 and 4), cacalol (5), 1 -hydroxy-2-(3'-pentenyl)-3,7-dimethylbenzofuran (6), 1beta, 6alpha-dihydroxy-4(14)-eudesmene (7) and (+)-oplopanone (8), have been isolated from an
Eremophilane-type sesquiterpene derivatives from the roots of Ligularia lapathifolia.
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Six new highly oxygenated eremophilane-type sesquiterpene derivatives (1-6), including a norbisesquiterpene, were isolated from an extract of the roots of Ligularia lapathifolia, and their structures were elucidated by spectroscopic methods. The structure of 1 was confirmed by single-crystal X-ray
Antiproliferative Sesquiterpenoids from Ligularia rumicifolia with Diverse Skeletons.
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Twenty-two new sesquiterpenoids with four skeletal types and 15 known analogues were isolated from the whole plants of Ligularia rumicifolia. The structures of the isolates were elucidated based on comprehensive spectroscopic data analysis. Compound 1 is a C14 nor-sesquiterpenoid featuring a 6/6/6
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