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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
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pubmed:dateCreated |
1998-9-17
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pubmed:abstractText |
Capsaicin (8-methyl-N-vanillyl-6-nonenamide) is a widely used tool for the depletion of neuropeptides from sensory C-fibres. Upon capsaicin treatment tachykinins are released, resulting in a variety of responses in the airways. We showed that after capsaicin (0.3 microM; 30 min) treatment of guinea pig tracheal smooth muscle preparations, the maximal contraction of the trachea after methacholine stimulation was strongly increased (capsaicin: 1.147 +/- 0.050 g vs. control: 0.717 +/- 0.047 g). This effect was completely nullified after pretreatment with capsazepine (2-[2-(4-chlorophenyl)ethyl-amino-thiocarbonyl]-7,8-dihydroxy-2,3, 4,5-tetrahydro-1H-2benzazepine; a vanilloid receptor antagonist) and YM38336 (a dual tachykinin NK1 and tachykinin NK2 receptor antagonist). Our results serve as a warning against using capsaicin as a putatively clean pharmacological tool to deplete the neuropeptides from pools on the C-fibres because we showed that capsaicin also strongly influences basal mechanisms in tracheal smooth muscle control.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Capsaicin,
http://linkedlifedata.com/resource/pubmed/chemical/Methacholine Chloride,
http://linkedlifedata.com/resource/pubmed/chemical/Muscarinic Agonists,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Muscarinic,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Tachykinin,
http://linkedlifedata.com/resource/pubmed/chemical/capsazepine
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
24
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pubmed:volume |
347
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
261-4
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:9653892-Animals,
pubmed-meshheading:9653892-Bronchoconstriction,
pubmed-meshheading:9653892-Capsaicin,
pubmed-meshheading:9653892-Dose-Response Relationship, Drug,
pubmed-meshheading:9653892-Drug Interactions,
pubmed-meshheading:9653892-Guinea Pigs,
pubmed-meshheading:9653892-Methacholine Chloride,
pubmed-meshheading:9653892-Muscarinic Agonists,
pubmed-meshheading:9653892-Muscle, Smooth,
pubmed-meshheading:9653892-Muscle Contraction,
pubmed-meshheading:9653892-Receptors, Muscarinic,
pubmed-meshheading:9653892-Receptors, Tachykinin,
pubmed-meshheading:9653892-Trachea
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pubmed:year |
1998
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pubmed:articleTitle |
Capsaicin treatment induces muscarinic hyperreactivity in guinea pig trachea: a warning.
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pubmed:affiliation |
Leiden/Amsterdam Center for Drug Research, Department of Pharmacochemistry, Faculty of Chemistry, Vrije Universiteit, Amsterdam, Netherlands.
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pubmed:publicationType |
Journal Article
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