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• W2904389600 abstract "Ebselen is an organoselenium compound that has demonstrated potent antioxidant and anti‑inflammatory effects in previous studies. The present study was conducted to evaluate the effect of ebselen on myocardial ischemia‑reperfusion (I/R) injury in a rat model and to elucidate the related mechanisms. Myocardial infarct size was assessed using triphenyltetrazolium chloride staining. Myocardial injury was evaluated according to the histopathological and ultrastructural alterations of rat hearts and the serum activity levels of cardiac enzymes, including creatine kinase (CK), CK‑MB isoenzyme and lactate dehydrogenase (LDH). Cardiomyocyte apoptosis was detected using the terminal dUTP nick end‑labelling (TUNEL) assay. In addition, the expression of apoptosis‑associated proteins was measured using western blot analysis. In heart tissue specimens the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPx), and levels of malondialdehyde (MDA) and protein carbonyl (PC) were also detected. The results indicated that ebselen reduced I/R‑induced increase in myocardial infarct size and prevented the I/R‑induced decreases in ejection fraction and fractional shortening. Further of note, ebselen improved I/R‑induced rat heart injury. This was indicated by attenuation of histological and ultrastructural changes; reduction of serum CK, CK‑MB and LDH activity levels; and decreased cell apoptosis on TUNEL staining, which was verified by decreased expression of cleaved (C)‑Caspase‑8, C‑Caspase‑3, B‑cell lymphoma 2 (Bcl‑2)‑associated X protein and C‑PARP, and increased expression of Bcl‑2. Additionally, SOD and GPx activity levels were significantly higher, while MDA and PC levels were significantly lower in the ebselen + I/R group compared with in the I/R group. In conclusion, the present results suggested that ebselen serves an important role in protecting against myocardial I/R injury. The underlying mechanism may involve suppression of cardiomyocyte apoptosis and promotion of antioxidant activity." @default.
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• W2904389600 date "2018-12-12" @default.
• W2904389600 modified "2023-10-13" @default.
• W2904389600 title "Ebselen protects rat hearts against myocardial ischemia‑reperfusion injury" @default.
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• W2904389600 doi "https://doi.org/10.3892/etm.2018.7089" @default.
• W2904389600 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6327602" @default.
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• W2904389600 hasPublicationYear "2018" @default.
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