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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
14
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pubmed:dateCreated |
1994-10-14
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pubmed:abstractText |
Responses to synthetic human adrenomedullin, a novel hypotensive peptide localized in several organ systems, including the lung, and the carboxy terminal 15-52 amino acid fragment of adrenomedullin (ADM15-52) were investigated in the pulmonary vascular bed of the intact-chest cat. Under constant flow conditions when baseline tone in the pulmonary vascular bed was raised to a high steady level, injections of adrenomedullin and ADM15-52 into the perfused lobar artery in doses of 0.1-1 nmol, caused significant dose-related decreases in lobar arterial pressure. Since left atrial pressure was unchanged, the decreases in lobar arterial pressure reflect decreases in pulmonary lobar vascular resistance. Adrenomedullin and ADM15-52 exhibited similar vasodilator activity and were approximately 3-fold more potent than bradykinin in the pulmonary vascular bed of the cat. Pulmonary vasodilator responses to adrenomedullin and ADM15-52 were rapid in onset and lasted for 150-200 sec, depending on the dose of the peptide injected. The present results demonstrate that synthetic human adrenomedullin and ADM15-52 possess potent, short-lasting vasodilator activity in the pulmonary vascular bed of the cat and suggest that amino acids 15-52 in the peptide are important for the expression of vasodilator activity in the pulmonary vascular bed of the cat.
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pubmed:grant | |
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 |
0024-3205
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
55
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
PL251-6
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8090050-Adrenomedullin,
pubmed-meshheading:8090050-Animals,
pubmed-meshheading:8090050-Antihypertensive Agents,
pubmed-meshheading:8090050-Blood Pressure,
pubmed-meshheading:8090050-Cats,
pubmed-meshheading:8090050-Female,
pubmed-meshheading:8090050-Male,
pubmed-meshheading:8090050-Peptides,
pubmed-meshheading:8090050-Pulmonary Circulation,
pubmed-meshheading:8090050-Vasodilator Agents
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pubmed:year |
1994
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pubmed:articleTitle |
Synthetic human adrenomedullin and ADM15-52 have potent short-lasting vasodilator activity in the pulmonary vascular bed of the cat.
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pubmed:affiliation |
Department of Pharmacology, Tulane University School of Medicine, New Orleans 70112.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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