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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1986-4-28
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pubmed:abstractText |
Almitrine Bismesylate (0.25 mg X kg-1) was perfused for 10 minutes into the pulmonary artery of 4 sheep (40 kg) which were anaesthetized, paralysed and ventilated with 50% oxygen in air and prepared according to Staub et al (J. Surg. Res. 19:315, 1975). The preparation was followed for 2 hours baseline and for four hours after perfusion and comparisons made using analysis of variance. We noted a transitory phase marked by a peak of pulmonary vascular resistance (PVR) at 25 +/- 15 minutes due to a rise in mean pulmonary artery pressure PAP from 14 +/- 2 to 23 +/- 5 cm H2O. PO2 fell from 220 +/- 40 to 180 +/- 25 Torr. A stable haemodynamic state was attained after 90 minutes. PAP was slightly above control and PaO2 significantly elevated (230 +/- 30 Torr P less than 0.05). Left atrial pressure, PCO2, pH, and lung lymph flow did not change. The mild stable vasoconstriction associated to a rise in PaO2 at constant ventilation and high PaO2 does not suggest a straightforward role for chemoreceptors. It is compatible with redistribution of VA/Q ratios by local mediators. Lung lymph was assayed for prostanoids using radio immunological methods. A significant rise in 6 keto PGF1 alpha immunoreactivity was found posterior to the haemodynamic peak. HPLC is required to quantify further this rise.
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pubmed:language |
fre
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0761-8425
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
2 Suppl 1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
S23-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2870543-6-Ketoprostaglandin F1 alpha,
pubmed-meshheading:2870543-Almitrine,
pubmed-meshheading:2870543-Animals,
pubmed-meshheading:2870543-Central Nervous System Stimulants,
pubmed-meshheading:2870543-Lymph,
pubmed-meshheading:2870543-Piperazines,
pubmed-meshheading:2870543-Pulmonary Circulation,
pubmed-meshheading:2870543-Pulmonary Gas Exchange,
pubmed-meshheading:2870543-Sheep,
pubmed-meshheading:2870543-Vasoconstriction
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pubmed:year |
1985
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pubmed:articleTitle |
[Activity of almitrine bismesylate on pulmonary hemodynamics and on the liberation of prostanoids in the lymph nodes in sheep].
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pubmed:publicationType |
Journal Article,
English Abstract
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