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- W3035342015 abstract "Sepsis induced myocardial dysfunction (SIMD) results in high morbidity and mortality. However, the effective therapeutic strategies for SIMD treatment remain limited. Sirt3 is the main mitochondrial Sirtuin member and is a key modulator of mitochondrial metabolism and function. In this study, we aimed to investigate the effect and mechanism of Sirt3 on SIMD. SIMD was induced by 20 mg/kg Lipopolysaccharides (LPS) injection for 6 h in mice. Sepsis could induce the reduction of cardiac Sirt3 expression and global deficiency of Sirt3 exacerbated cardiac function. Quantitative acetyl-proteomics and cardiac metabolomics analysis revealed that loss of Sirt3 led to hyper-acetylation of critical enzymes within cardiac tricarboxylic acid (TCA) cycle and generation of lactate and NADH, subsequently promotion of cardiac dysfunction after sepsis. Additionally, to evaluate whether Emodin could be utilized as a potential Sirt3 modulator to treat SIMD, male wild type mice (WT mice) or global Sirt3 deficient mice (Sirt3−/− mice) were intraperitoneally injected with 40 mg/kg Emodin for 5 days followed by 20 mg/kg LPS administration for another 6 h and observed that exogenous administration of Emodin could attenuate myocardial dysfunction in septic WT mice. However, septic Sirt3−/− mice can not gain benefit on cardiac performance from Emodin infusion. In conclusion, this study presented the protective role of Sirt3 targeting SIMD, which may provide a potential novel approach to maintain normal cardiac performance after sepsis." @default.
- W3035342015 created "2020-06-19" @default.
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- W3035342015 date "2020-09-01" @default.
- W3035342015 modified "2023-10-16" @default.
- W3035342015 title "Sirt3 is a novel target to treat sepsis induced myocardial dysfunction by acetylated modulation of critical enzymes within cardiac tricarboxylic acid cycle" @default.
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- W3035342015 doi "https://doi.org/10.1016/j.phrs.2020.104887" @default.
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