guaianolide/gyulladás

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Oldal 1 tól től 36 eredmények

Guaianolides and a seco-Eudesmane from the Resinous Exudates of Cushion Bush (Leucophyta brownii) and Evaluation of Their Cytostatic and Anti-inflammatory Activity.

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A detailed phytochemical investigation of a dichloromethane extract of the resinous exudates of the cushion bush plant (Leucophyta brownii) resulted in the isolation of the new 8,12-guaianolides leucophytalins A (5) and B (6), the new 1,10-seco-eudesmane leucophytalin C (10), six rare

Cytotoxic versus anti-inflammatory effects in HeLa, Jurkat T and human peripheral blood cells caused by guaianolide-type sesquiterpene lactones.

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Four guaianolide type sesquiterpene lactones (SL), namely the new 1,2-dihydro-3-oxo-costic acid guaianyl ester 3beta-O-(1,2-didehydro-3-oxo-costoyloxy)-4beta,10beta-dihydroxy-guaia-1(2)-en-6beta,12-olide (1) and

Biogenic guaianolide-type sesquiterpene lactones with antioxidative and anti-inflammatory properties from natural mangrove hybrid Rhizophora annamalayana.

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Previously undescribed guaianolide-type sesquiterpene lactones were isolated from the chloroform fraction of the natural hybrid mangrove Rhizophora annamalayana, and were characterised as (Z)-3α,4,5,6-tetrahydro-5α-isobutyl-2β-(methoxymethyl)-7-methyl-3H-cyclohepta[b]carbolactone (1) and

Highly Oxidized Guaianolide Sesquiterpenoids with Potential Anti-inflammatory Activity from Chrysanthemum indicum.

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Ten new highly oxidized monomeric (1-8) and dimeric guaianolides (9 and 10), along with two known guaianolide derivatives (11 and 12), were isolated from the aerial parts of Chrysanthemum indicum using a bioassay-guided fractionation procedure. The new compounds were characterized by the basic

Anti-inflammatory activity of Eupatorium perfoliatum L. extracts, eupafolin, and dimeric guaianolide via iNOS inhibitory activity and modulation of inflammation-related cytokines and chemokines.

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BACKGROUND Eupatorium perfoliatum L. has been used traditionally for the treatment of fever, malaria and inflammation-associated diseases. Nowadays it is mostly used as immune activating remedy. The following study was performed to evaluate extracts with different polarity and defined lead-compounds

Guaianolides from Ormenis mixta: Structural Insights and Evaluation of Their Anti-inflammatory Profile.

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In this paper, the isolation of five new guaianolides (1: - 5: ) and four (6: - 9: ) known sesquiterpenes from Ormenis mixta aerial parts is reported. The structural determination of the guaianolides was obtained by NMR spectroscopic data, as well as MS experiments. Their relative

Suppression of inflammatory responses by handelin, a guaianolide dimer from Chrysanthemum boreale, via downregulation of NF-κB signaling and pro-inflammatory cytokine production.

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The anti-inflammatory activity of handelin (1), a guaianolide dimer from Chrysanthemum boreale flowers, was evaluated in vivo, and the effects on mediators nitric oxide (NO), prostaglandin E2 (PGE2), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β) and the nuclear factor-κB (NF-κB) and

Pseudoguaianolides and guaianolides from Inula hupehensis as potential anti-inflammatory agents.

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Eight new pseudoguaianolides (1-8), two new guaianolides (9 and 10), and 14 known sesquiterpenes were isolated from the aerial parts of Inula hupehensis. The structures were elucidated using spectroscopic methods and circular dichroism analysis. All compounds were tested for inhibitory activities

Anti-inflammatory and antioxidant potential of Guaianolide isolated from Cyathocline purpurea: Role of COX-2 inhibition.

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BACKGROUND Inflammation activated by oxidative stress can cause various diseases, such as asthma, rheumatoid arthritis, cancer, diabetes, etc. Plant constituents with sesquiterpene lactones possess antioxidant and anti-inflammatory properties. OBJECTIVE To determine the antioxidant and

Anti-inflammatory Activity of Absinthin and Derivatives in Human Bronchoepithelial Cells

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Bitter taste receptors (hTAS2R) are expressed ectopically in various tissues, raising the possibility of a pharmacological exploitation. This seems of particular relevance in airways, since hTAS2Rs are involved in the protection of the aerial tissues from infections and in bronchodilation. The

NF-κB dependent anti-inflammatory activity of chlorojanerin isolated from Saussurea heteromalla.

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Medicinal plants have shown great promise as a source of novel drug compounds for the treatment of inflammatory disorders. In our search for new entities with anti-inflammatory potential, the extracts of the whole plant of Saussurea heteromalla (family-Asteraceae), collected from Himalayas, were

Lactone ring-opening seco-guaianolide involved heterodimers linked via an ester bond from Artemisia argyi with NO inhibitory activity.

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Investigation into the chemical diversity of Artemisia argyi led to the discovery of four new (1-4) and one known (5) guaianolide sesquitenpenoid dimers linked via ester bond, and five other known mono-sesquiterpenoids (6-10). Their structures were determined via extensive spectroscopic data, and

Guaianolides from Viguiera gardneri inhibit the transcription factor NF-kappaB.

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Five guaianolides and a germacrolide were isolated from the leaf rinse extract of Viguiera gardneri (Asteraceae), together with known compounds. All compounds were detected in glandular trichomes collected from the leaves and were analyzed by HPLC. Structure elucidation was based on the analysis of

Anti-inflammatory properties of Salograviolide A purified from Lebanese plant Centaurea ainetensis.

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BACKGROUND Anti-inflammatory activities of medicinal plants have largely been attributed to their content of sesquiterpene lactones (SLs). SLs are predominantly found in the sunflower family Asteraceae and have been isolated from many plants of this family, particularly Centaurea. The

1,10-seco guaianolide-type sesquiterpenoids from Chrysanthemum indicum

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ABSTACTA chemical investigation of the whole plant of traditional Chinese medicine, Chrysanthemum indicum L., led to the discovery of six guaianolide-type sesquiterpenoids 1-6 with a 1,10-splited skeleton. The structure of the new compound 1 was established by extensive analysis

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