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- W4312406972 abstract "Sepsis-induced myocardial dysfunction is accompanied primarily by severe sepsis, which is associated with high morbidity and mortality. 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1), a reductase, can convert inactive cortisone into metabolically active cortisol. The role of 11β-HSD1 in sepsis-induced myocardial dysfunction remains poorly understood. This study aimed to investigate the effects of 11β-HSD1 in lipopolysaccharide (LPS)-induced mouse model. LPS(10 mg/kg) was administered to wild-type C57BL/6J mice and 11β-HSD1 global knockout mice. Cardiac function was assessed by echocardiography. Transmission electron microscopy and immunohistochemical staining were performed to analyze myocardial mitochondrial injury and record histological changes. The levels of reactive oxygen species and biomarkers of oxidative stress were determined. Polymerase chain reaction analysis, western blot, and immunofluorescent staining were employed to determine the expression of related genes and proteins, respectively. To investigate the role of 11β-HSD1 in sepsis-induced myocardial dysfunction, LPS was used to induce lentivirus-infected neonatal rat ventricular cardiomyocytes. Knockdown of 11β-HSD1 alleviated LPS-induced myocardial mitochondrial injury, oxidative stress, and inflammation, along with improved myocardial function. Furthermore, depletion of 11β-HSD1 promoted the phosphorylation of adenosine 5'‐monophosphate-activated protein kinase, peroxisome proliferator activated receptor gamma coactivator 1α, and silent information regulator 1 protein levels both <i>in vivo</i> and <i>in vitro</i>. The suppression of 11β-HSD1 may be a viable strategy to improve cardiac function against endotoxemia challenges." @default.
- W4312406972 created "2023-01-04" @default.
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- W4312406972 date "2023-01-01" @default.
- W4312406972 modified "2023-10-14" @default.
- W4312406972 title "Knockdown of 11β-hydroxysteroid dehydrogenase type 1 alleviates LPS-induced myocardial dysfunction through the AMPK/SIRT1/PGC-1α pathway" @default.
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- W4312406972 doi "https://doi.org/10.7555/jbr.36.20220212" @default.
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