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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
|
pubmed:dateCreated |
1994-4-18
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pubmed:abstractText |
The effect of atrial natriuretic peptide (ANP) on histamine-induced bronchoconstriction was studied in vivo (in normoxic and in hypoxic rabbits) and in vitro. Thirty-two anesthetized rabbits, spontaneously breathing room air or 10% O2, received infusions of ANP (20, 40, or 80 ng/min/kg normoxia; 20 ng/min/kg hypoxia) or the vehicle for 100 min. After 75 min of ANP infusion, bronchoconstriction was induced inhaling histamine; respiratory resistance (Rrs) was measured prior to and until 20 min posthistamine. The results show that the histamine-induced increase in Rrs was significantly reduced by ANP 80 ng/kg/min in normoxia, and by ANP 20 ng/kg/min in hypoxia. In vitro, ANP had no effect on tracheal and bronchial smooth muscle precontracted with histamine or acetylcholine. These results show that ANP can decrease a histamine-induced bronchoconstriction in vivo but not in vitro, suggesting an indirect mechanism of action.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0196-9781
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
14
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1325-30
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8134314-Airway Resistance,
pubmed-meshheading:8134314-Anesthetics,
pubmed-meshheading:8134314-Animals,
pubmed-meshheading:8134314-Asthma,
pubmed-meshheading:8134314-Atrial Natriuretic Factor,
pubmed-meshheading:8134314-Bronchodilator Agents,
pubmed-meshheading:8134314-Disease Models, Animal,
pubmed-meshheading:8134314-Male,
pubmed-meshheading:8134314-Oxygen,
pubmed-meshheading:8134314-Rabbits
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pubmed:articleTitle |
Effect of atrial natriuretic peptide on bronchial tone in anesthetized rabbits.
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pubmed:affiliation |
Département de pharmacologie, Faculté de Médecine, Université de Montréal, Québec, Canada.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
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