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Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

Effect of Ischemic Preconditioning on Injuries Caused by Ischemia and Reperfusion in Rat Intestine

2012; Elsevier BV; Volume: 44; Issue: 8 Linguagem: Inglês

10.1016/j.transproceed.2012.07.056

ISSN

1873-2623

Autores

Murched Omar Taha, Regiane Miranda‐Ferreira, Adrienne Chang, Adelson Marçal Rodrigues, Ingrid S. da Fonseca, L. Bousquets Toral, Márcia Cardoso, Manuel de Jesus Simões, Itamar Souza de Oliveira-Júnior, Hugo P. Monteiro, Djalma José Fagundes, Nabiha Saadi Abrahão Taha, Afonso Caricati‐Neto,

Tópico(s)

Organ Transplantation Techniques and Outcomes

Resumo

To study whether ischemic preconditioning (IPC) attenuated intestinal dysfunction caused by ischemia (I) and reperfusion (R), rats were underwent 60 minutes of I which was produced by occlusion of the superior mesenteric artery, and/or 120 minutes R. The IPC group had the I procedure previously stimulated for 5 minutes and the R for 10 minutes. IPC and sham groups were injected with saline solution (SS) via the femoral vein 5 minutes before the I and R, and for R. After I or I/R, 2-cm jejunal segments were mounted in an organ bath to study neurogenic contractions stimulated by electrical pulses or KCl using a digital recording system. Thin jejunal slices were stained with hematoxylin and eosin for optical microscopy. Compared with the sham group, jejunal contractions were similar in the IPC + I and the IPC + I/R groups, but reduced in the I + SS and the I/R + SS groups. The jejunal enteric nerves were damaged in the I + SS and the I/R + SS groups, but not in the IPC groups. These results suggested that ischemic preconditioning attenuated intestinal dysfunction caused by I and I/R.

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