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- W3080615034 abstract "Hepatic dysfunction frequently occurs after trauma-hemorrhage, resulting in severe pathophysiological responses that include leukocyte shifting and self-mediated mechanisms of cells, such as autophagy and apoptosis. This in vivo study aimed to characterize mitochondrial morphology, leukocyte reaction, and the processes of autophagy and apoptosis after polytrauma hemorrhage (TH) in a long-term, large animal model.Liver tissue was taken from a porcine TH model (hemorrhagic shock, blunt chest trauma, tibia fracture, and liver laceration) with an intensive care unit follow-up of 72 h. The ultrastructural changes of the liver tissue after TH were evaluated by transmission electron microscopy. The leukocyte phenotypes and autophagy and apoptosis pathways were elucidated by immunohistofluorescence, Western blot, and terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL).In addition to post-traumatic changes in the mitochondrial morphology, the biomarkers of anti-inflammatory macrophages (CD163) and reparative monocytes (CD11R3 and CD16) were upregulated, while the inducible nitric oxide synthase was downregulated after TH. Furthermore, the autophagy-related protein expressions of LC3 and Beclin-1 were upregulated, whereas the protein expression of P62 was downregulated after TH. Costaining showed that the macrophages were LC3 (or Beclin-1) positive and that CD163 was copositive and upregulated. Apoptosis biomarkers (cleaved-caspase-3/caspase-3 and Bcl-2) increased after TH, which is in line with TUNEL results.In conclusion, the observed findings indicate that mitochondrial dysfunction might be one trigger of hepatic autophagy and apoptosis after TH. These processes occur together with the activation of anti-inflammatory leukocytes in liver tissue. Further studies are needed to elucidate the potential therapeutic effects of inhibiting mitochondrial swelling during autophagy or apoptosis." @default.
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- W3080615034 date "2020-08-20" @default.
- W3080615034 modified "2023-10-17" @default.
- W3080615034 title "Trauma-Hemorrhage Stimulates Immune Defense, Mitochondrial Dysfunction, Autophagy, and Apoptosis in Pig Liver at 72 h" @default.
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- W3080615034 doi "https://doi.org/10.1097/shk.0000000000001556" @default.
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