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《海南医科大学学报(英文版)
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>Mechanism of hesperidin improving myocardial ischemia/reperfusion injury in type 2 diabetic rats through SIRT1/Nrf2/HO-1 signaling pathway
Mechanism of hesperidin improving myocardial ischemia/reperfusion injury in type 2 diabetic rats through SIRT1/Nrf2/HO-1 signaling pathway
Objective:To observe the protective effect of hesperidin on myocardial ischemia/reperfusion injury in type 2 diabetes mellitus and its effect on SIRT1/Nrf2/HO-1 signaling pathway.Methods:50 Sprague-Dawley(SD)rats were randomly assigned to the normal control group(NC),model group,ischemia-reperfusion group(IR),hesperidin group,SIRT1 inhibitor group and hesperidin plus SIRT1 inhibitor group.In addition to NC,the rats in the remaining groups were replicated by intraperitoneal of high-fat diet combined with injection of streptozotocin for type 2 diabetic rats.After then,the myocardial ischemia/reperfusion injury(MIRI)rat model was established by LAd for 30 minutes with 2 hours reperfusion.He staining was used to observe the pathological changes of myocardial tissue,and the levels of serum LDH,CK-MB and SOD,GSH and MDA in myocardial tissue were detected by kit methods,and the expression abundance of related proteins in 4-HNE and SIRT1/Nrf2/HO-1 signal pathway were detected by immunohistochemistry and Western blot;Results:Hesperidin could significantly inhibit cardiomyocyte necrosis and inflammatory cell infiltration,reduce LDH activity,CK-MB and MDA level,and increase SOD activity,GSH and 4-HNE level,the differences were statistically significant when compared with IR group(P<0.01).In addition,compared with the ischemia-reperfusion group,the expressions of SIRT1,Nrf2 and HO-1 proteins in hesperidin group were significantly up-regulated,the differences were statistically significant(P<0.01);Conclusion:Hesperidin inhibits oxidative stress by activating SIRT1/Nrf2/HO-1 signaling pathway,and play a protective effect of myocardial ischemia reperfusion injury in diabetic rats.
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机译:Retraction: Tanshinone IIA prevents left ventricular remodelling via the TLR4/MyD88/NF‐κB signalling pathway in rats with myocardial infarction. Dong‐Mei Wu, Yong‐Jian Wang, Xin‐Rui Han, Xin Wen, Lei Li, Lan Xu, Jun Lu and Yuan‐Lin Zheng. J Cell Mol Med. 2018; 22: 3058–3072 (https://doi.org/10.1111/jcmm.13557).
机译:Retraction: Tanshinone IIA prevents left ventricular remodelling via the TLR4/MyD88/NF‐κB signalling pathway in rats with myocardial infarction. Dong‐Mei Wu Yong‐Jian Wang Xin‐Rui Han Xin Wen Lei Li Lan Xu Jun Lu and Yuan‐Lin Zheng. J Cell Mol Med. 2018; 22: 3058–3072 (https://doi.org/10.1111/jcmm.13557).