Korean J Anesthesiol.  2011 Dec;61(6):499-505. 10.4097/kjae.2011.61.6.499.

Myocardial protective effect by ulinastatin via an anti-inflammatory response after regional ischemia/reperfusion injury in an in vivo rat heart model

Affiliations
  • 1Department of Anesthesiology and Pain Medicine, Gyeongsang National University College of Medicine, Jinju, Korea. ykchung@nongae.ac.kr
  • 2Department of Cardiothoracic and Vascular Surgery,Gyeongsang National University College of Medicine, Jinju, Korea.
  • 3Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju, Korea.

Abstract

BACKGROUND
Ulinastatin has anti-inflammatory properties and protects organs from ischemia/reperfusion-induced injury. The aim of this study was to investigate whether ulinastatin provides a protective effect on a regional myocardial ischemia/reperfusion injury in an in vivo rat heart model and to determine whether the anti-inflammatory response is related to its myocardial protective effect.
METHODS
Rats were randomized to two groups. One group is received ulinastatin (50,000 U/kg or 100,000 U/kg) diluted in normal saline and the other group is received normal saline, which was administered intraperitoneally 30 min before the ischemic insult. Reperfusion after 30 min of ischemia of the left coronary artery territory was applied. Hemodynamic measurements were recorded serially during 6 h after reperfusion. After the 6 h reperfusion, myocardial infarct size, cardiac enzymes, myeloperoxidase activity, and inflammatory cytokine levels were compared between the ulinastatin treated and untreated groups.
RESULTS
Ulinastatin improved cardiac function and reduced infarct size after regional ischemia/reperfusion injury. Ulinastatin significantly attenuated tumor necrosis factor-alpha expression and reduced myeloperoxidase activity.
CONCLUSIONS
Ulinastatin showed a myocardial protective effect after regional ischemia/reperfusion injury in an in vivo rat heart model. This protective effect of ulinastatin might be related in part to ulinastatin's ability to inhibit myeloperoxidase activity and decrease expression of tumor necrosis factor-alpha.

Keyword

Inflammation; Ischemia/reperfusion; Myocardium; Ulinastatin

MeSH Terms

Animals
Coronary Vessels
Glycoproteins
Heart
Hemodynamics
Inflammation
Ischemia
Myocardial Reperfusion
Myocardium
Peroxidase
Rats
Reperfusion
Tumor Necrosis Factor-alpha
Glycoproteins
Peroxidase
Tumor Necrosis Factor-alpha
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