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- W2389632020 abstract "AIM: To explore the protective effect of riboflavin preconditioning on hepatic ischemia/reperfusion injury in rats.METHODS: Twenty-four Sprague-Dawley rats were randomly divided into 3 groups(n=8): sham group,ischemia/reperfusion(I/R) group and riboflavin preconditioning(R+I/R) group.The rats in sham group and I/R group received a standard chow,while the rats in R+I/R group received a chow supplemented with riboflavin.After 4 weeks,portal vein and hepatic artery supplying the middle and left hepatic lobes were clamped with a traumatic vascular clip for induction of partial hepatic ischemia in the rats in I/R group and R+I/R group.After 1 h of ischemia,1 h of reperfusion was conducted by removal of the clip.The activity of alanine aminotransferase(ALT) and aspartate aminotransferase(AST) in serum,the activity of superoxide dismutase(SOD) and the level of malondialdehyde(MDA) in serum and liver were measured.Western blotting was employed to examine the protein expression of heme oxygenase-1(HO-1) in the liver.RESULTS: The results showed that ischemia/reperfusion injury markedly increased the activity of AST and ALT in serum,decreased the activity of SOD,and elevated the level of MDA and the activity of HO-1 in the liver as compared with sham group(P0.01).The riboflavin pretreatment significantly decreased the activity of AST and ALT in serum,increased the activity of SOD and decreased the levels of MDA in serum and liver as compared with I/R group(P0.01).In addition,the protein expression of HO-1 and the activity of HO-1 were elevated in R+I/R group(P0.01).Cytoplasmic vacuolation and swelling of the hepatocytes were observed in I/R group.Treatment with riboflavin markedly alleviated the changes of liver structure.CONCLUSION: Riboflavin preconditioning has protective effect on hepatic ischemia/reperfusion injury.The mechanism may be correlated with enhancing the anti-oxidation and alleviating the reaction of lipid peroxidation." @default.
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- W2389632020 date "2012-01-01" @default.
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- W2389632020 title "Riboflavin preconditioning alleviates hepatic ischemia/reperfusion injury in rats" @default.
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