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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1996-12-3
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pubmed:abstractText |
The effects of endothelin-1 and endothelin-3 were investigated on carbachol-contracted guinea-pig isolated trachea. Endothelin-1 and endothelin-3 (0.1-100 nM) induced partial dose-dependent relaxation of the precontracted preparations. The endothelin-1-induced relaxation was markedly attenuated by haemoglobin (10 microM) and methylene blue (10 microM) and by epithelium removal. In contrast, endothelin-3-induced relaxation was not affected by haemoglobin, methylene blue or epithelium removal. The large conductance Ca(2+)-activated K(+)-channel blocker, charybdotoxin, antagonized the endothelin-1- and the endothelin-3-induced relaxation to the same extent. These results show that both endothelin-1 and endothelin-3 relaxant activities are modulated by charybdotoxin-sensitive K(+)-channels, while the nitric oxide pathway is only involved in endothelin-1 relaxant effects.
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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:month |
Mar
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
298
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
145-8
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:8867101-Animals,
pubmed-meshheading:8867101-Dose-Response Relationship, Drug,
pubmed-meshheading:8867101-Endothelin-1,
pubmed-meshheading:8867101-Endothelin-3,
pubmed-meshheading:8867101-Guinea Pigs,
pubmed-meshheading:8867101-Male,
pubmed-meshheading:8867101-Muscle, Smooth,
pubmed-meshheading:8867101-Trachea
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pubmed:year |
1996
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pubmed:articleTitle |
Different mechanisms involved in relaxation of guinea-pig trachea by endothelin-1 and -3.
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pubmed:affiliation |
Laboratoire de Pharmacodynamie, Faculté de Pharmacie, Montpellier, France.
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pubmed:publicationType |
Journal Article
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