alexa One-Stage Model of Experimental Myocardial Infarction in Rats | OMICS International | Abstract
ISSN: 2161-0681

Journal of Clinical & Experimental Pathology
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Research Article

One-Stage Model of Experimental Myocardial Infarction in Rats

Chupakhin O.N1, Sarapultsev P.A2, Sarapultsev A.P3*, Rantsev M.?4, Danilova I.G5 and Medvedeva S.Y6

1Scientific Supervisor at the I.J. Postovsky Institute of Organic Synthesis, Ural Branch of the RAS, MD, PhD in chemistry;

2Chief Researcher at the Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Sciences, MD, PhD in medicine

3Associate Researcher at the Institute of Immunology and Physiology, Ural Branch of RAS, PhD in medicine

4Rantsev Maxim, Associate Professor of General Surgery at GOU VPO “Ural State Medical Academy of the Ministry of Health and Social Development”, PhD in medicine

5Chief Researcher at the Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Sciences, MD, PhD in physiology.

6Senior Researcher at GOU VPO “the Institute of Immunology and Physiology, Ural Branch of the RAS”, PhD in medicine

*Corresponding Author:
Sarapultsev Alexei, Ph.D
Associate Researcher
Institute of Immunology and Physiology
Ural Branch of RAS, 620049 Ekaterinburg
106 Pervomayskaya Str, Russia
Tel: 343 3740070
E-mail: [email protected]

Received Date: September 30, 2011; Accepted Date: November 17, 2011; Published Date: November 18, 2011

Citation: Chupakhin ON, Sarapultsev PA, Sarapultsev AP, Rantsev MA, Danilova IG, et al. (2011) One-Stage Model of Experimental Myocardial Infarction in Rats. J Clinic Experiment Pathol 1:101. doi: 10.4172/2161-0681.1000101

Copyright: © 2011 Chupakhin ON, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background: In recent years, due to technical and economic considerations much of the experimental work is carried out on small laboratory animals such as mice and rats. In addition, researchers have to use mainly one-stage methods of MI modeling, which rely on vessel ligation. Objective: The aim of the study was to create a simple model of experimental myocardial infarction (MI) to examine the effect of medications on its development and course. Methods: Acute MI in rats was induced by left coronary artery ligation. Animals were taken out of the experiment at days 1, 5 or 7. Myocardium of all heart parts was morphologically studied after embedding. In addition to visual assessment there was a light-optical examination of infraction and peri-infarction myocardial areas, as well as left ventricular areas distant from the damaged tissues. Serum activity of creatine phosphokinase (CPK), aspartate aminotransferase (AST), isoenzymes 1 and 2, lactate dehydrogenase (LDH1-2) before and in the process of MI development was investigated (at days 1, 5 and 7). Results: Based on the study results, in animals with MI model standard level of affecting the coronary artery was determined, as well as similar amount of ischemic myocardial tissues; and histomorphological findings confirmed standard development of transmural MI. Meanwhile, staging of MI development in rodents correlated with other authors’ data. Conclusions: Thus, the presented method of experimental MI modeling is relatively simple for use and provides a high level of reproducibility of results. In addition, it’s not associated with risks of developing cardiac rhythm disturbances, provides 100 % survival rate of experimental animals and can be used for laboratory studies on larger groups of small laboratory animals.

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