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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-8-21
pubmed:abstractText
Animal data strongly support a role for inflammation in myocardial ischemia reperfusion injury. Attempts at cardioprotection by immunomodulation (such as with the specific C5 antibody pexelizumab) in humans have been disappointing. We hypothesized that a broader spectrum antiinflammatory agent might yield successful cardioprotection. The serine protease inhibitor nafamostat (FUT-175), which is already in clinical use, is a potent antiinflammatory synthetic serine protease inhibitor with anticomplement activity that we tested in a well-established rabbit model of 1 hour of myocardial ischemia followed by 3 hours of reperfusion. Compared to vehicle-treated animals, nafamostat (1 mg/kg of body weight) administered 5 minutes before reperfusion significantly reduced myocardial injury assessed by plasma creatine kinase activity (38.1 +/- 6.0 versus 57.9 +/- 3.7I U/g protein; P < 0.05) and myocardial necrosis (23.6 +/- 3.1% versus 35.7 +/- 1.0%; P < 0.05) as well as myocardial leukocyte accumulation (P < 0.05). In parallel in vitro studies, Nafamostat was a significantly more potent broad spectrum complement suppressor than C1 inhibitor. Nafamostat appears to have capability as an inhibitor of both complement pathways and as a broad-spectrum antiinflammatory agent by virtue of its serine protease inhibition. Administration of nafamostat before myocardial reperfusion after ischemia produced significant, dose-dependent cardioprotection. Reduced leukocyte accumulation and complement activity seem involved in the mechanism of this cardioprotective effect.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1533-4023
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
151-60
pubmed:meshHeading
pubmed-meshheading:18670364-Animals, pubmed-meshheading:18670364-Anti-Inflammatory Agents, Non-Steroidal, pubmed-meshheading:18670364-Complement Activation, pubmed-meshheading:18670364-Complement C1 Inhibitor Protein, pubmed-meshheading:18670364-Complement Inactivating Agents, pubmed-meshheading:18670364-Complement Pathway, Alternative, pubmed-meshheading:18670364-Complement Pathway, Classical, pubmed-meshheading:18670364-Creatine Kinase, pubmed-meshheading:18670364-Guanidines, pubmed-meshheading:18670364-Hemodynamics, pubmed-meshheading:18670364-Humans, pubmed-meshheading:18670364-Immunohistochemistry, pubmed-meshheading:18670364-Male, pubmed-meshheading:18670364-Myocardial Reperfusion Injury, pubmed-meshheading:18670364-Myocardium, pubmed-meshheading:18670364-Necrosis, pubmed-meshheading:18670364-Neutrophils, pubmed-meshheading:18670364-Rabbits, pubmed-meshheading:18670364-Serine Proteinase Inhibitors
pubmed:year
2008
pubmed:articleTitle
Serine protease inhibitor nafamostat given before reperfusion reduces inflammatory myocardial injury by complement and neutrophil inhibition.
pubmed:affiliation
Department of Medicine III, Martin-Luther-University, Halle, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't