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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1988-7-15
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pubmed:abstractText |
Azelastine is a phthalazinone derivative with a wide spectrum of pharmacologically relevant activities. Since PAF-acether has been considered to be a potent mediator of asthma, azelastine was assayed for its ability to counteract PAF-acether-induced platelet aggregation, paw edema development and bronchoconstriction. Azelastine exerted a concentration-dependent inhibition of PAF-acether-induced platelet aggregation in human platelet rich plasma with an IC50 of 87 mumol/l and was as effective as ketotifen. PAF-acether-induced paw edema was reduced by intraperitoneal administration of azelastine resulting in an ID50 of 14.4 mg/kg after 2 h. By contrast, ketotifen was not able to inhibit edema development up to a dose of 32 mg/kg i.p. Azelastine and ketotifen, administered intravenously, dose-dependently inhibited PAF-acether-induced bronchoconstriction, starting from the dose of 0.01 mg/kg and resulting in ID50s of 0.03 and 0.02 mg/kg, respectively. These results show that azelastine is endowed with a peculiar anti-PAF-acether action, which may be advantageous in its therapeutic use, in the treatment of asthma.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0031-7012
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
36
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
265-71
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pubmed:dateRevised |
2004-12-8
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pubmed:meshHeading |
pubmed-meshheading:3380879-Animals,
pubmed-meshheading:3380879-Bronchial Spasm,
pubmed-meshheading:3380879-Edema,
pubmed-meshheading:3380879-Male,
pubmed-meshheading:3380879-Phthalazines,
pubmed-meshheading:3380879-Platelet Activating Factor,
pubmed-meshheading:3380879-Platelet Aggregation,
pubmed-meshheading:3380879-Pyridazines,
pubmed-meshheading:3380879-Rats,
pubmed-meshheading:3380879-Rats, Inbred Strains
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pubmed:year |
1988
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pubmed:articleTitle |
Azelastine, a new antiallergic/antiasthmatic agent, inhibits PAF-acether-induced platelet aggregation, paw edema and bronchoconstriction.
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pubmed:affiliation |
Department of Pharmacology, Asta Pharma AG, Frankfurt a.M., FRG.
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pubmed:publicationType |
Journal Article
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