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Protective Effect of Adenoviral Transfer of Heme Oxygenase-1 Gene on Rats With Severe Acute Pancreatitis
Update time:2014-04-08 02:23:00   【 Font: Large  Medium Small




It is widely accepted that the pathophysiological mechanism of severe acute pancreatitis (SAP) is characterized by the systemic inflammatory response, which eventually causes systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), and even death. Heme oxygenase (HO)-1 has been proved to exert anti-inflammatory benefit in a variety of inflammatory diseases, and a variety of methods by which HO-1 overexpression can be induced have been reported. In this study, we hypothesized that transfer of HO-1 gene by adenoviral vector could inhibit the systemic inflammation and the development of MODS. Sprague-Dawley (SD) rats were used as subjects in this study. Each was made into SAP model by retrograded injection through pancreatic duct with 5% sodium taurocholate (0.1 mL/100 g). Normal saline (1 mL/animal) or adenoviral HO-1 gene (Adv-HO-1, 2.0 x 109 PFU/mL/animal) or adenoviral empty vectors (Adv-0, 2.0 x 109 PFU/mL/animal) were injected intraperitoneally. HO-1 expression in serum and tissues including pancreas, liver and kidney was measured and observed to be upregulated in the rats treated with Adv-HO-1. The administration of Adv-HO-1 also inhibited the expression of tumor necrosis factor (TNF)-[alpha] and boosted the expression of interleukin-10 (IL-10). The decreasing serum concentration of ALT, AST, BUN and CREA, the amelioration of histopathologic damage in pancreas, liver and kidney tissues, the improvement of survival rate were all observed in rats treated with Adv-HO-1 comparing to others. As a result, this study showed that Adv-HO-1 could exert protective effect including anti-inflammation and organ protection through enhancing the expression of HO-1 in SAP.

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Source:The American Journal of the Medical Sciences      by F Zhang, J Fei, B Zhao, et al.
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