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Tytuł:
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Coronavirus (Covid-19) sepsis: revisiting mitochondrial dysfunction in pathogenesis, aging, inflammation, and mortality.
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Autorzy:
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Shenoy S; Department of Surgery, Kansas City VA Medical Center, University of Missouri Kansas City, 4801 E Linwood Blvd, Kansas City, MO, 64128, USA. .
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Źródło:
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Inflammation research : official journal of the European Histamine Research Society ... [et al.] [Inflamm Res] 2020 Nov; Vol. 69 (11), pp. 1077-1085. Date of Electronic Publication: 2020 Aug 07.
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Typ publikacji:
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Journal Article; Review
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Język:
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English
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Imprint Name(s):
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Original Publication: Basel, Switzerland : Birkhäuser, c1995-
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MeSH Terms:
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Coronavirus Infections/*complications
Coronavirus Infections/*pathology
Inflammation/*etiology
Inflammation/*pathology
Mitochondria/*metabolism
Mitochondria/*pathology
Mitochondrial Diseases/*etiology
Mitochondrial Diseases/*pathology
Pneumonia, Viral/*complications
Pneumonia, Viral/*pathology
Sepsis/*etiology
Sepsis/*pathology
Aging ; COVID-19 ; Coronavirus Infections/mortality ; Humans ; Inflammation/mortality ; Mitochondrial Diseases/mortality ; Pandemics ; Pneumonia, Viral/mortality ; Sepsis/mortality
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Contributed Indexing:
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Keywords: Covid-19; DAMP; HIF-α; Mitochondrial dysfunction; Sirtuins; Viral replication
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Entry Date(s):
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Date Created: 20200809 Date Completed: 20201001 Latest Revision: 20220218
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Update Code:
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20240105
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PubMed Central ID:
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PMC7410962
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DOI:
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10.1007/s00011-020-01389-z
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PMID:
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32767095
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Background: Decline in mitochondrial function occurs with aging and may increase mortality. We discuss mitochondrial contribution to Covid-19 sepsis, specifically the complex interaction of innate immune function, viral replication, hyper-inflammatory state, and HIF-α/Sirtuin pathways.
Methods: Articles from PubMed/Medline searches were reviewed using the combination of terms "SARS-CoV-2, Covid-19, sepsis, mitochondria, aging, and immunometabolism".
Results: Evidence indicates that mitochondria in senescent cells may be dysfunctional and unable to keep up with hypermetabolic demands associated with Covid-19 sepsis. Mitochondrial proteins may serve as damage-associated molecular pattern (DAMP) activating innate immunity. Disruption in normal oxidative phosphorylation pathways contributes to elevated ROS which activates sepsis cascade through HIF-α/Sirtuin pathway. Viral-mitochondrial interaction may be necessary for replication and increased viral load. Hypoxia and hyper-inflammatory state contribute to increased mortality associated with Covid-19 sepsis.
Conclusions: Aging is associated with worse outcomes in sepsis. Modulating Sirtuin activity is emerging as therapeutic agent in sepsis. HIF-α, levels of mitochondrial DNA, and other mitochondrial DAMP molecules may also serve as useful biomarker and need to be investigated. These mechanisms should be explored specifically for Covid-19-related sepsis. Understanding newly discovered regulatory mechanisms may lead to the development of novel diagnostic and therapeutic targets.