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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1991-1-8
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pubmed:abstractText |
To determine whether acute fatty acid lung injury impairs pulmonary surfactant function, we studied anesthetized ventilated rabbits given oleic acid (55 mg/kg iv, n = 11) or an equivalent volume of saline (n = 8). Measurements of pulmonary mechanics indicated a decrease in dynamic compliance within 5 min of injury and a decrease in lung volume that was disproportionately large at low pressures, consistent with diminished surfactant activity in vivo. Bronchoalveolar lavage fluid obtained 1 h after injury had significantly increased erythrocytes and total leukocytes, largely polymorphonuclear cells. The phospholipid content and composition of the cell-free fraction had only minor changes from those of controls, but the protein content was increased 35-fold. Measurements of lavage surface activity in vitro showed an increase in average minimum surface tension from 1.3 +/- 0.4 (SE) dyn/cm in controls to 20.2 +/- 3.9 dyn/cm in injured animals. The alterations in static pressure-volume curves and decrease in lavage surface activity suggest a severe alteration of surfactant function in this form of lung injury that occurs despite the presence of normal amounts of surfactant phospholipids.
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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:month |
Sep
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pubmed:issn |
8750-7587
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
69
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1143-9
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2246164-Animals,
pubmed-meshheading:2246164-Blood Gas Analysis,
pubmed-meshheading:2246164-Bronchoalveolar Lavage Fluid,
pubmed-meshheading:2246164-Fatty Acids, Nonesterified,
pubmed-meshheading:2246164-Lung,
pubmed-meshheading:2246164-Lung Compliance,
pubmed-meshheading:2246164-Male,
pubmed-meshheading:2246164-Neutrophils,
pubmed-meshheading:2246164-Phosphatidylcholines,
pubmed-meshheading:2246164-Phospholipids,
pubmed-meshheading:2246164-Pulmonary Surfactants,
pubmed-meshheading:2246164-Rabbits,
pubmed-meshheading:2246164-Respiratory Distress Syndrome, Adult,
pubmed-meshheading:2246164-Respiratory Function Tests,
pubmed-meshheading:2246164-Surface Tension
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pubmed:year |
1990
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pubmed:articleTitle |
Altered function of pulmonary surfactant in fatty acid lung injury.
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pubmed:affiliation |
Department of Medicine, University of Rochester School of Medicine and Dentistry, New York 14642.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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