Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1999-3-12
|
pubmed:abstractText |
1. This study examined the potential role of tumor necrosis factor-alpha (TNF-alpha) in myocardial ischemia-reperfusion injury using an anesthetized rat model of myocardial infarction. 2. The key endpoints were infarct size and serum TNF-alpha levels (measured by a specific ELISA technique). 3. Three groups of rats were studied: vehicle controls (n=6); positive controls for infarct size reduction (ischemic preconditioning; n=6); and a group treated with the selective inhibitor of PDE-IV and TNF-alpha production, rolipram (1 mg/kg i.v. 10-min prereperfusion + 1 microg/kg per minute through 1-hr reperfusion, n=6). 4. Baseline preischemia levels of serum TNF-alpha were low (approximately 0.1 nM) and showed a trend for further reduction in all treatment groups at 1 min and 3 hr into the postischemia reperfusion period. 5. Infarct size (68+/-2% of the ischemic area in controls) was significantly reduced (41% decrease) by preconditioning, but was unchanged in rolipram-treated animals. 6. Collectively, these data argue against an important role for TNF-alpha in lethal reperfusion injury in this rat model of myocardial infarction.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0306-3623
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
32
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
41-5
|
pubmed:dateRevised |
2004-11-17
|
pubmed:meshHeading |
pubmed-meshheading:9888252-Anesthesia,
pubmed-meshheading:9888252-Animals,
pubmed-meshheading:9888252-Blood Pressure,
pubmed-meshheading:9888252-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:9888252-Heart Rate,
pubmed-meshheading:9888252-Male,
pubmed-meshheading:9888252-Myocardial Infarction,
pubmed-meshheading:9888252-Myocardial Reperfusion Injury,
pubmed-meshheading:9888252-Pyrrolidinones,
pubmed-meshheading:9888252-Rats,
pubmed-meshheading:9888252-Rats, Sprague-Dawley,
pubmed-meshheading:9888252-Rolipram,
pubmed-meshheading:9888252-Tumor Necrosis Factor-alpha
|
pubmed:year |
1999
|
pubmed:articleTitle |
Does tumor necrosis factor-alpha (TNF-alpha) contribute to myocardial reperfusion injury in anesthetized rats?
|
pubmed:affiliation |
Department of Cardiovascular Discovery (NW4), Rhône-Poulenc Rorer, Collegeville, PA 19426, USA.
|
pubmed:publicationType |
Journal Article
|