期刊
PATHOLOGY RESEARCH AND PRACTICE
卷 206, 期 9, 页码 647-650出版社
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.prp.2010.03.008
关键词
Experimental myocardial infarction; Histopathology; Reparation; Calcium deposits
类别
资金
- Ministry of Education of the Czech Republic (MSM) [0021622402]
The goal of this pilot study was to create an experimental model of myocardial infarction (for subsequent evaluation of the effectiveness of an alternative way of stem cell application - intracoronary cell infusion in the management of acute myocardial infarction). Four experimental animals, female pigs weighing between 30 and 40 kg, were used in the initial phase of this study to create an experimental model of acute myocardial infarction. An experimental myocardial infarction was performed via occlusion of the interventricular arm of the left coronary artery for 90 min. The hearts were examined 1 h, 3 days, 5 days, and 7 days after the procedure. Macroscopically, red infarction characteristic of reperfusion was found. Microscopically, the healing process with granulation tissue production/collagen deposition was remarkably accelerated compared to literature data. Repair processes in reperfused experimental myocardial infarction and/or reperfused autopsy specimens should not be evaluated on the basis of literature data only. Large collections of extracellular calcium were present. This phenomenon is not well described in the literature and probably has the potential for significantly interfering with the repair process. The histopathology of reperfused acute myoardial infarction deserves to be studied in further investigations. (C) 2010 Elsevier GmbH. All rights reserved.
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