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Pagina 1 a partire dal 205 risultati
Inhibitory Potencies of Several Iridoids on Cyclooxygenase-1, Cyclooxygnase-2 Enzymes Activities, Tumor Necrosis factor-α and Nitric Oxide Production In Vitro.
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To verify the anti-inflammatory potency of iridoids, seven iridoid glucosides (aucubin, catalpol, gentiopicroside, swertiamarin, geniposide, geniposidic acid and loganin) and an iridoid aglycone (genipin) were investigated with in vitro testing model systems based on inhibition of cyclooxygenase
Protective effect of cornel iridoid glycoside in D-galactosamine/tumor necrosis factor-α-injured L02 hepatocytes and its mechanism.
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OBJECTIVE
The aim was to determine the action mode of cornel iridoid glycoside (CIG) from Fructus corni on hepatoprotective activities, the effects of CIG on human hepatocyte cell line (L02) injured by D-galactosamine (GalN) and tumor necrosis factor-α (TNF-α) were examined.
METHODS
The percentage
Inhibitory effect of iridoids on Epstein-Barr virus activation by a short-term in vitro assay for anti-tumor promoters.
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The in vitro anti-tumor promoting effect of the methanolic extracts of iridoids containing three plants and several pure iridoids isolated from other plants, has been evaluated. The alcoholic extracts of Paederia scandens, P. scandens var. mairei and the Ayurvedic herbal remedy Picrorhiza kurrooa
Cancer chemopreventive activity of an iridoid glycoside, 8-acetylharpagide, from Ajuga decumbens.
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In the course of our continuing search for novel cancer chemopreventive agents from natural sources, several kinds of Labiatae plants were screened. Consequently, the iridoid glycoside derivative, 8-acetylharpagide (8-AcHarp), was obtained from the flowering whole plant of Ajuga decumbens as an
The hydrolyzed products of iridoid glycoside with β-glucosidase treatment exert anti-proliferative effects through suppression of STAT3 activation and STAT3-regulated gene products in several human cancer cells.
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BACKGROUND
Iridoids belong to a group of monoterpene compounds with cyclopentane ring and found as mostly the glycoside forms in nature. They act primarily as the defense substances and found in various medicinal plants.
OBJECTIVE
Although many iridoids exhibit anti-inflammatory and anticancer
Acylated Iridoids and Rhamnopyranoses from Premna odorata (Lamiaceae) as Novel Mesenchymal-Epithelial Transition Factor Receptor Inhibitors for the Control of Breast Cancer.
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Phytochemical investigation of Premna odorata Blanco, Lamiaceae, leaves afforded three new acylated iridoid glycosides 1-3 and two new acylated rhamnopyranoses 9 and 10, in addition to ten known compounds. The structures of the new compounds were confirmed using extensive 1D and 2D NMR analysis.
Oleuropein, a non-toxic olive iridoid, is an anti-tumor agent and cytoskeleton disruptor.
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Oleuropein, a non-toxic secoiridoid derived from the olive tree, is a powerful antioxidant and anti-angiogenic agent. Here, we show it to be a potent anti-cancer compound, directly disrupting actin filaments in cells and in a cell-free assay. Oleuropein inhibited the proliferation and migration of
Picroside II, an iridoid glycoside from Picrorhiza kurroa, suppresses tumor migration, invasion, and angiogenesis in vitro and in vivo.
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Cancer is one of the leading causes of death worldwide. The development of novel anti-cancer agents from natural products is a promising approach to reduce cancer mortality. In this study, we investigated the anti-metastatic and anti-angiogenic activities of picroside II (PII) in human breast cancer
Production of anti-tumor-promoting iridoid glucosides in Genipa americana and its cell cultures.
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The Genipa americana plant contains geniposide [3] and geniposidic acid [2] in the fruits and geniposidic acid [2] in the leaves. On callus induction, the plant produces tarennoside [1], geniposidic acid [2], and gardenoside [4] in high levels. The leaves of Ge. americana plants redifferentiated
Iridoid glycosides from the flowers of Gentiana macrophylla Pall. ameliorate collagen-induced arthritis in rats.
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BACKGROUND
The flowers of Gentiana macrophylla have been usually applied to cure the joint inflammation and rheumatoid arthritis in Traditional Chinese Medicine.
OBJECTIVE
This work aimed to investigate the anti-rheumatoid arthritic effect and possible mechanism of iridoid glycosides from G.
Three new iridoids from leaves of Cornus officinalis.
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Three new iridoids, cornifins A-C (1-3), together with a known iridoid, were obtained from EtOAc layer of leaves of Cornus officinalis. The structures of new compounds were elucidated on the basis of extensive spectroscopic analyses. Compound 2 showed weak inhibitory activity against lung cancer
Acylated iridoids with cytotoxicity from Valeriana jatamansi.
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Thirteen new acylated iridoids, jatamanvaltrates A-M (1-13), together with nine known valepotriates (14-22), were isolated from the whole plants of Valeriana jatamansi (syn. Valeriana wallichii). The structures of these new compounds were assigned by detailed interpretation of spectroscopic data.
Antibacterial and Antiproliferative Activities of Plumericin, an Iridoid Isolated from Momordica charantia Vine.
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Plumericin, an iridoid lactone, was isolated with relatively high yield from Momordica charantia vine using the supercritical fluid extraction (SFE) and the separation box (Sepbox) comprising dual combination of high-performance liquid chromatography and solid phase extraction. This compound showed
The cytotoxic and tyrosine kinase inhibitory properties of C21 steroids and iridoids from the tubers of Alocasia cucullata.
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Ten steroids and iridoids were isolated from the tubers of Alocasia cucullata (Lour.) G. Don. Among them, alocasgenin A (1) and alocasgenoside B-C (2-3) were new compounds and the aglycone of compound 1, obtained from the acid hydrolysis of 1, was named alocasgenol (1a). Also, for the first time,
New cycloartanes and new iridoids from Dolichandrone spathacea collected in the mangrove forest of Soc Trang province, Vietnam.
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Two new cycloartanes, named dolichandrone A (1) and dolichandrone B (2), as well as two new iridoids, named [6-O-[(E)-4-methoxycinnamoyl]-1β-hydroxy-dihydrocatalpolgenin (3) and 6-O-[(E)-4-methoxycinnamoyl]-1α-hydroxy-dihydrocatalpolgenin (4), together with four known iridoids (5-8), were isolated
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