Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4 Pt 1
pubmed:dateCreated
1997-11-18
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1073-449X
pubmed:author
pubmed:issnType
Print
pubmed:volume
156
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1230-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Interleukin-1 in ischemia-reperfusion acute lung injury.
pubmed:affiliation
Department of Medicine, Tri-Service General Hospital, Taipei, Taiwan, Republic of China.
pubmed:publicationType
Journal Article, Comparative Study, In Vitro, Research Support, Non-U.S. Gov't