Evaluation of the Effects of Atorvastatin and Ischemic Postconditioning Preventing on the Ischemia and Reperfusion Injury: Experimental Study in Rats

Abstract Introduction: Reperfusion injury leads to systemic morphological and functional pathological alterations. Some techniques are already estabilished to attenuate the damage induced by reperfusion. Ischemic preconditioning is one of the standard procedures. In the last 20 years, several experimental trials demonstrated that the ischemic postconditioning presents similar effectiveness. Recently experimental trials demonstrated that statins could be used as pharmacological preconditioning. Methods: 41 Wistar rats (Rattus norvegicus albinus) were distributed in 5 groups: Ischemia and Reperfusion (A), Ischemic Postconditioning (B), Statin (C), Ischemic Postconditioning + Statins (D) and SHAM (E). After euthanasia, lungs, liver, kidneys and ileum were resected and submitted to histopathological analysis. Results: The average of lung parenchymal injury was A=3.6, B=1.6, C=1.2, D=1.2, E=1 (P=0.0029). The average of liver parenchymal injury was A=3, B=1.5, C=1.2, D=1.2, E = 0 (P<0.0001). The average of renal parenchymal injury was A=4, B=2.44, C=1.22, D=1.11, E=1 (P<0.0001). The average of intestinal parenchymal injury was A=2, B=0.66, C=0, D=0, E=0 (P=0.0006). The results were submitted to statistics applying Kruskal-Wallis test, estabilishing level of significance P<0.05. Conclusion: Groups submitted to ischemic postconditioning, to pre-treatment with statins and both methods associated demonstrated less remote reperfusion injuries, compared to the group submitted to ischemia and reperfusion without protection.

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Bibliographic Details
Main Authors: Pontes,Henrique Budib Dorsa, Pontes,José Carlos Dorsa Vieira, Azevedo Neto,Euler de, Vendas,Giovanna Serra da Cruz, Miranda,João Victor Cunha, Dias,Letícia do Espírito Santos, Oliva,João Victor Durães Gomes, Almeida,Murilo Henrique Martins de, Chaves,Ian de Oliveira, Sampaio,Tricia Luna, Santos,Carlos Henrique Marques dos, Dourado,Doroty Mesquita
Format: Digital revista
Published: Sociedade Brasileira de Cirurgia Cardiovascular 2018
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382018000100072
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