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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4 Pt 1
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pubmed:dateCreated |
1997-11-18
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pubmed:abstractText |
Interleukin-1 (IL-1) is a proinflammatory cytokine produced by blood-borne and resident inflammatory lung tissue involved in the thrombotic occlusion of the pulmonary microcirculation and the increase of the vascular permeability following a wide variety of injuries and sepsis. The locally accentuated, organ-related activation of this cytokine seems to be responsible for the development of acute lung injury. The present study was conducted to determine if IL-1beta was produced in an ischemia-reperfusion (I/R) rat model subjected to lung injury. We measured sequential perfusate levels of IL-1beta by ELISA and we measured IL-1 gene expression in the rat lung tissue by a reverse-transcriptase polymerase chain reaction method. Little IL-1beta gene expression was observed in normal rat lung tissue. Perfusate IL-1beta slightly increased 2 h after induced ischemia and 3 h after reperfusion. IL-1beta gene expression rapidly increased as early as 30 min after ischemia and continued to increase for up to 120 min. IL-1beta gene expression was dramatically upregulated during reperfusion after cessation of ischemia, reached a peak at 1 h, and then gradually decreased (2 to 3 h) to near baseline levels. During ischemia, the increased IL-1 gene expression was not significantly different between the ventral and dorsal sites of the lung. However, IL-1 gene expression markedly increased on the dorsal part (the dependent site for a rat in a supine position) after reperfusion. From these results, it appears that IL-1 may have an important role in I/R lung injury.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1073-449X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
156
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1230-4
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9351626-Acute Disease,
pubmed-meshheading:9351626-Animals,
pubmed-meshheading:9351626-Capillary Permeability,
pubmed-meshheading:9351626-DNA Primers,
pubmed-meshheading:9351626-Disease Models, Animal,
pubmed-meshheading:9351626-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:9351626-Interleukin-1,
pubmed-meshheading:9351626-Lung Diseases,
pubmed-meshheading:9351626-Male,
pubmed-meshheading:9351626-Polymerase Chain Reaction,
pubmed-meshheading:9351626-RNA,
pubmed-meshheading:9351626-Rats,
pubmed-meshheading:9351626-Rats, Sprague-Dawley,
pubmed-meshheading:9351626-Reperfusion Injury
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pubmed:year |
1997
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pubmed:articleTitle |
Interleukin-1 in ischemia-reperfusion acute lung injury.
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pubmed:affiliation |
Department of Medicine, Tri-Service General Hospital, Taipei, Taiwan, Republic of China.
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pubmed:publicationType |
Journal Article,
Comparative Study,
In Vitro,
Research Support, Non-U.S. Gov't
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