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arachidonic acid/põletik

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Leht 1 alates 7294 tulemused
By using the technique of site-directed spin labeling combined with EPR spectroscopy, we have observed that binding of arachidonic acid and nonsteroidal anti-inflammatory drugs induces conformational changes in the human prostaglandin endoperoxide H(2) synthase enzyme (PGHS-2). Line shape broadening
BACKGROUND Adipocyte fatty acid-binding protein, also known as aP2 or fatty acid-binding protein 4 (FABP4), plays an important role in inflammatory and metabolic responses in adipocytes and macrophages. Recent work has demonstrated that macrophage FABP4 integrates inflammatory and lipid metabolic
The synthesis of signal lipids, including eicosanoids, is not fully understood, although it is key to the modulation of various inflammatory states. Recently, isotopologues of essential polyunsaturated fatty acids (PUFAs) deuterated at bis-allylic positions (D-PUFAs) have been proposed as inhibitors

The mouse ear inflammatory response to topical arachidonic acid.

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Application of arachidonic acid (AA) (0.1-4 mg) to the ears of mice produces immediate vasodilatation and erythema (5 min) followed by the abrupt development of edema which is maximal at 40-60 min. The onset of edema coincides with extravasation of protein and leukocytes. After 1 h, the edema begins
Beyond the conventional mode of working of anti-inflammatory agents through enzyme inhibition, herein, COX-2 was provided with an alternate substrate. A proline-centered pentapeptide isoconformational to arachidonic acid, which exhibited appreciable selectivity for COX-2, overcoming acetic acid- and
Arachidonic acid (ARA) metabolites are involved in cardiovascular diseases and drug-induced cardiotoxicity. The present study aimed to investigate the effects of nonsteroidal anti-inflammatory drugs (NSAIDs) on the gene expression of ARA-metabolizing cyp450 genes in the hearts, kidneys and livers of

Arachidonic acid metabolism as a potential mediator of cardiac fibrosis associated with inflammation.

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An increase in left ventricular collagen (cardiac fibrosis) is a detrimental process that adversely affects heart function. Strong evidence implicates the infiltration of inflammatory cells as a critical part of the process resulting in cardiac fibrosis. Inflammatory cells are capable of releasing
Retinoids have shown anti-inflammatory activity in some animal models and human diseases, although the mechanism by which retinoids elicit this activity is unknown. In this study, retinoids significantly attenuated, in a dose-dependent fashion, murine ear oedema induced by phorbol 12-myristate
OBJECTIVE To establish equivalent doses of four non-steroidal anti-inflammatory drugs (NSAID) in normotensive and hypertensive rats using inhibition of the fall in blood pressure produced by the injection of arachidonic acid as the measure of equivalence. METHODS An experimental study using two rat
The anti-inflammatory mechanism of iodine-enriched egg was investigated in mice by means of arachidonic acid-induced ear inflammation. The lipid fraction of iodine-enriched egg was capable of suppressing the increase in ear weight induced by arachidonic acid in a dose-dependent manner. The lipid
The effects of acidic and nonacidic pyrazoles on the release of arachidonic acid-derived mediators from isolated perfused anaphylactic guinea pig hearts as well as rat and human gastric mucosa were investigated. High concentrations of the acidic drugs phenylbutazone and oxyphenbutazone as well as of
Inflammation is an important immune response; however, excessive inflammation causes severe tissue damages and secondary inflammatory injuries. The long-term and ongoing uses of routinely used drugs such as non-steroidal anti-inflammatory drugs (NSAIDS) are associated with serious adverse reactions,
We have evaluated the effects of the novel anti-inflammatory agent florifenine, 2-(1-Pyrrolidinyl)ethyl N-[7-(trifluoromethyl)-4-quinolyl]anthranilate, on topical inflammation in mice, free radical-mediated reactions, arachidonic acid metabolism and some neutrophil functions. Topical administration
The arachidonic acid (AA)-induced ear edema model in the mouse has been demonstrated as an effective in vivo experimental tool to screen compounds showing anti-inflammatory activity. Since neutrophil influx is a component of the inflammatory reaction, we have modified this assay by quantitating
Topical cyclosporin A (CsA) was compared with dexamethasone, indomethacin and phenidone in edema, increases in vascular permeability, eicosanoids and cell-influx induced by arachidonic acid (AA) and tetradecanoylphorbol acetate (TPA) in mouse ears. CsA ED(50) on AA-edema (7.7 micrograms/ear) was
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