【摘 要】
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AIM: To investigate the protective effect of target suppression of uncoupling protein-2 (UCP-2) on ischemia/ reperfusion (I/R) injury in fatty liver in ob/ob mi
【机 构】
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Department of General Surgery
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AIM: To investigate the protective effect of target suppression of uncoupling protein-2 (UCP-2) on ischemia/ reperfusion (I/R) injury in fatty liver in ob/ob mice.METHODS: Plasmids suppressing UCP-2 expression were constructed, and transfected into fatty liver cells cultured in vitro and the ob/ob mouse I/R injury model. Serum tumor necrosis factor (TNF)-α levels, UCP-2 mRNA expression, alanine aminotransferase (ALT) levels in ob/ob mice were tested, and the pathological changes in fatty liver were observed in experimental and control groups.RESULTS: In ob/ob mouse I/R models, serum TNF-α levels were significantly higher than in normal controls. After the plasmids were transfected into the cultured cells and animal models, expression of UCP-2 mRNA was significantly reduced as compared with that in the control group (2156±015 vs 2"0-45±0-15, P < 0.05). In ob/ob mouse models, in which expression of UCP-2 was suppressed, serum ALT levels were significantly lower than those of other groups, and pathological analysis revealed that injury of liver tissues was significantly alleviated.CONCLUSION: The target suppression of UCP-2 expression in fatty liver can alleviate the I/R injury in the ob/ob mice.
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