Pentoxifylline and prostaglandin E1 action on ischemia and reperfusion of small intestine tissue in rats. An immunohistochemical study

Acta Cirurgica Brasileira

José Lacerda Brasileiro¹  Rondon Tosta Ramalho¹  Ricardo Dutra Aydos¹  Iandara Schettert Silva¹  Luis Carlos Takita¹  Guido Marks¹  Peterson Vieira De Assis¹ 

关键词: Ischemia;    Reperfusion;    Intestine;    Small;    Pentoxifylline;    Alprostadil;    Fas Ligand Protein;    Immunohistochemistry;    Apoptosis;    Rats;   

DOI  :  10.1590/S0102-86502015002000005

来源: SciELO

【 摘 要 】

PURPOSE: To investigate the action of pentoxifylline (PTX) and prostaglandin E1 (PGE1) on ischemia and reperfusion of small intestine tissue in rats, using immunohistochemical analysis. METHODS: Thirty-five Wistar rats were distributed as follows: group A (n=10): subjected to intestinal ischemia and reperfusion for 60 min, with no drugs; group B (n=10): PTX given during tissue ischemia and reperfusion; group C (n=10): PGE1 given during tissue ischemia and reperfusion; group D (n=5): sham. A segment of the small intestine was excised from each euthanized animal and subjected to immunohistochemical examination. RESULTS: Mean number of cells expressing anti-FAS ligand in the crypts was highest in Group A (78.9 ± 17.3), followed by groups B (16.7 ± 2.8), C (11.3 ± 1.8), and D (2.5 ± 0.9), with very significant differences between groups (p<0.0001). CONCLUSIONS: The use of pentoxifylline or prostaglandin E1 proved beneficial during tissue reperfusion. The immunohistochemical results demonstrated a decrease in apoptotic cells, while protecting other intestinal epithelium cells against death after reperfusion, allowing these cells to renew the epithelial tissue.

【 授权许可】

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