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• W3096410340 abstract "Sepsis is the leading cause of death in hospitalized patients and beyond the hospital stay and these long-term sequelae are due in part to unresolved inflammation. Metabolic shift from oxidative phosphorylation to aerobic glycolysis links metabolism to inflammation and such a shift is commonly observed in sepsis under normoxic conditions. By shifting the metabolic state from aerobic glycolysis to oxidative phosphorylation, we hypothesized it would reverse unresolved inflammation and subsequently improve outcome. We propose a shift from aerobic glycolysis to oxidative phosphorylation as a sepsis therapy by targeting the pathways involved in the conversion of pyruvate into acetyl-CoA via pyruvate dehydrogenase (PDH). Chemical manipulation of PDH using dichloroacetic acid (DCA) will promote oxidative phosphorylation over glycolysis and decrease inflammation. We tested our hypothesis in a Drosophila melanogaster model of surviving sepsis infected with Staphylococcus aureus. Drosophila were divided into 3 groups: unmanipulated , sham and sepsis survivors , all treated with linezolid; each group was either treated or not with DCA for one week following sepsis. We followed lifespan, measured gene expression of Toll , defensin , cecropin A , and drosomycin , and levels of lactate, pyruvate, acetyl-CoA as well as TCA metabolites. In our model, metabolic effects of sepsis are modified by DCA with normalized lactate, TCA metabolites, and was associated with improved lifespan of sepsis survivors, yet had no lifespan effects on unmanipulated and sham flies. While Drosomycin and cecropin A expression increased in sepsis survivors, DCA treatment decreased both and selectively increased defensin ." @default.
• W3096410340 created "2020-11-09" @default.
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• W3096410340 date "2020-11-05" @default.
• W3096410340 modified "2023-10-17" @default.
• W3096410340 title "Dichloroacetate-induced metabolic reprogramming improves lifespan in a Drosophila model of surviving sepsis" @default.
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• W3096410340 doi "https://doi.org/10.1371/journal.pone.0241122" @default.
• W3096410340 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7643993" @default.
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