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Strana 1 z 30 Výsledek
Anti-inflammatory properties of the protein kinase C inhibitor, 3-[1-[3-(dimethylamino)propyl]-1H-indol-3-yl]-4-(1H-indol-3-yl)-1H- pyrrole-2,5-dione monohydrochloride (GF109203X) in the PMA-mouse ear edema model.
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Přihlášení Registrace
Protein kinase C (PKC) mediates a number of intracellular signal transduction pathways implicated in the pathogenesis of inflammation, including phospholipase A2-dependent arachidonic acid release and eicosanoid production. Recent studies demonstrate that the PKC inhibitor GF109203X significantly
Effects of monocrotaline pyrrole on cultured rat pulmonary endothelium.
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Administration of monocrotaline pyrrole (MCTP), a putative toxic metabolite of the pyrrolizidine alkaloid, monocrotaline (MCT), results in delayed and progressive pneumotoxicity in the rat. It has been suggested that the lung injury caused by this compound may be initiated by an interaction between
Anti-inflammatory and anti-arthritic effects of new synthetic 3-(4-hydroxyphenyl)-4-(4-thiomethoxyphenyl)-1H-pyrrole-2,5-dione.
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We previously reported that 3-(4-hydroxyphenyl)-4-(4-thiomethoxyphenyl)-1H-pyrrole-2,5-dione (1, HMP) has a strong inhibitory effect on prostaglandin E(2) (PGE(2)) production. In this study, the anti-inflammatory and anti-arthritic effects of HMP were evaluated on LPS-induced RAW 264.7 macrophages
Development of morphologic, hemodynamic, and biochemical changes in lungs of rats given monocrotaline pyrrole.
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Přihlášení Registrace
A single, intravenous administration of a low dose of monocrotaline pyrrole (MCTP), a derivative of the pyrrolizidine alkaloid monocrotaline (MCT), induces progressive pulmonary hypertension and right ventricular hypertrophy (RVH) in rats. The temporal relationship between morphologic alterations,
Injury to the isolated, perfused lung by exposure in vitro to monocrotaline pyrrole.
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Přihlášení Registrace
Monocrotaline pyrrole (MCTP) is a reactive metabolite of the pyrrolizidine alkaloid monocrotaline. It causes pulmonary lesions associated with pulmonary hypertension and right ventricular hypertrophy. Conditions of exposure to MCTP that result in early lung injury were examined in isolated rat lungs
Cellular fibronectin and von Willebrand factor concentrations in plasma of rats treated with monocrotaline pyrrole.
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The monocrotaline pyrrole (MCTP)-treated rat is a useful model for the study of certain chronic pulmonary vascular diseases. A single, i.v. administration of a low dose of MCTP causes pneumotoxicity, pulmonary vascular remodeling, sustained increases in pulmonary arterial pressure, and right
The effects of monocrotaline pyrrole on cultured bovine pulmonary artery endothelial and smooth muscle cells.
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Monocrotaline pyrrole (MCTP), a reactive electrophile, induces delayed and progressive pulmonary edema, vascular remodeling, and pulmonary hypertension after a single intravenous administration to rats. The effects of a single exposure of cultured bovine pulmonary artery endothelial cells (BEC) and
Pharmacological and molecular characterization of the mechanisms involved in prostaglandin E2-induced mouse paw edema.
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The present study evaluated some of the mechanisms underlying prostaglandin E2 (PGE2)-induced paw edema formation in mice. Intraplantar (i.pl.) injection of PGE2 (0.10-10.0 nmol/paw) into the hindpaw elicited a dose-related edema formation, with a mean ED50 value of 0.42 nmol/paw. The coinjection of
Anti-inflammatory, antiproteolytic, and antihemolytic properties of pyrrole carboxylic acids.
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Eight substituted pyrrole carboxylic acids were evaluated for their anti-inflammatory activity against carageenin-induced edema in rats. The protection afforded by seven of these compounds at a dose of 100 mg/kg i.p. ranged from 11 to 42%. Indomethacin (10 mg/kg i.p.), used as a reference drug,
Synthesis, neuropsychopharmacological effects and analgesic-antiinflammatory activities of pyrrole analogues of lefetamine.
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The synthesis of pyrrole analogues of the analgesic drug lefetamine is reported. These derivatives bear the 1-phenyl-2-(1H-pyrrol-1-yl)ethylamino moiety. Compounds were evaluated for analgesic activities in mice by the hot plate and Randall-Selitto tests. Antiinflammatory activity was tested by the
Absolute configuration of (-)-5-benzoyl-1,2-dihydro-3H-pyrrolo[1,2-alpha]pyrrole-1-carboxylic acid, the active enantiomer of ketorolac.
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The (-)-S isomer of 5-benzoyl-1,2-dihydro-3H-pyrrolo[1,2-alpha]pyrrole-1-carboxylic acid is about 60 times more potent than the (+)-R isomer in the carrageenan edema test and ca. 230 times more active than the (+)-R isomer in the mouse phenylquinone writhing assay.
New biological properties of pyrroloquinoline quinone and its related compounds: inhibition of chemiluminescence, lipid peroxidation and rat paw edema.
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Pyrroloquinoline quinone (PQQ) inhibited the chemiluminescence (CL) from mouse peritoneal cells initiated by zymosan, carrageenin and N-formyl-methionyl-leucyl-phenylalanine and CL generated by the xanthine-xanthine oxidase reaction and the lipid peroxidation in the rat brain homogenate. The
Ligand-based design, synthesis and primary in vivo screening of pyrrole derivatives as potential tricyclic anti-inflammatory agents.
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Twelve new compounds were designed as 5-aryl-1H-pyrrole analogs of celecoxib (CAS 169590-42-5) and were synthesized by Paal-Knorr cyclization in three series according to 1H-substitution: derivatives with salicylic acid, pyrazolone or isonicotinamide residues. The average physico-chemical and steric
Fibrin thrombosis in monocrotaline pyrrole-induced cor pulmonale in rats.
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Přihlášení Registrace
Investigations were carried out to determine the lung lesions responsible for the development of pulmonary heart disease, cor pulmonale, in rats treated with monocrotaline pyrrole or monocrotaline. Animals with right ventricular hypertrophy showed microscopic lung alterations consisting of alveolar
Characterization of a murine model of monocrotaline pyrrole-induced acute lung injury.
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BACKGROUND
New animal models of chronic pulmonary hypertension in mice are needed. The injection of monocrotaline is an established model of pulmonary hypertension in rats. The aim of this study was to establish a murine model of pulmonary hypertension by injection of the active metabolite,
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