Abstract
Oxidative stress has drawn a lot of attention in the past few decades, since it has been reported to participate in the mechanism of many diseases. Therefore, it seemed to be a good rationale to aim oxidative stress on therapeutic research. Sepsis is a complex systemic syndrome characterized by an imbalance between pro- and anti-inflammatory responses to a pathogen; its pathophysiology is a dynamic process which involves components of the immune system, the coagulation pathway, parenchymal cells, and the endocrine and metabolic pathways. It is well characterized that oxidative stress plays a crucial role in sepsis development, but the relation between central nervous system dysfunction and oxidative stress during sepsis is not well understood. Thus, we here summarize the current knowledge on the role of free radicals in the development of brain dysfunction in sepsis focusing on oxidative damage and the redox control of brain inflammatory pathways.
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Abbreviations
- AP-1:
-
Activator protein-1
- ARE:
-
Antioxidant response element
- ATP:
-
Adenosine triphosphate
- BBB:
-
Blood-brain-barrier
- CAT:
-
Catalase
- CLP:
-
Cecal ligation and perforation
- CNS:
-
Central nervous system
- DNA:
-
Deoxyribonucleic acid
- ERK:
-
Extracellular signal-regulated kinase
- ETC:
-
Electron transport chain
- H2O2 :
-
Hydrogen peroxide
- IKK:
-
NF-κB (IκB)-kinase
- IL-1:
-
Interleukin-1
- IL-1RA:
-
Interleukin-1 receptor antagonist
- IL-1β:
-
Interleukin-1β
- IL-2:
-
Interleukin-2
- IL-6:
-
Interleukin-6
- iNOS:
-
Inducible nitric oxide synthase
- IRAK1:
-
Interleukin-1 receptor-associated kinase 1
- IRAK4:
-
Interleukin-1 receptor-associated kinase 4
- JNK:
-
Jun N-terminal kinase
- LPS:
-
Lipopolysaccharide
- MAPK:
-
Mitogen-activated protein kinase
- MCP-1:
-
Monocyte chemotactic protein-1
- MKP-1:
-
MAPK phosphatase-1
- MMP:
-
Matrix metalloproteinases
- mRNA:
-
Messenger ribonucleic acid
- MyD88:
-
Myeloid differentiation primary-response protein 88
- NADPH:
-
Nicotinamide adenine dinucleotide phosphate
- NF-κB:
-
Nuclear factor kappa-B
- NO:
-
Nitric oxide
- NOS:
-
Nitric oxide synthase
- NrF2:
-
Nuclear factor-E2 related factor 2
- OXPHOS:
-
Oxidative phosphorylation
- PI3K:
-
Phosphatidylinositol 3-kinase
- PKC:
-
Protein kinase C
- RNS:
-
Reactive nitrogen species
- ROS:
-
Reactive oxygen species
- SE:
-
Septic encephalopathy
- SOD:
-
Superoxide dismutase
- TAK1:
-
Transforming growth factor-β-activated kinase
- TLR:
-
Toll-like receptors
- TNF-α:
-
Tumor necrosis factor-alpha
- TRAF6:
-
Tumor necrosis factor receptor-associated factor 6
- XO:
-
Xanthine oxidase
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Acknowledgments
We would like to thank UNESC (Brazil), FAPESC (Brazil) and CNPq (Brazil) which supported the studies of our group that are cited in this review.
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Dal-Pizzol, F., Ritter, C., Cassol-Jr, O.J. et al. Oxidative Mechanisms of Brain Dysfunction During Sepsis. Neurochem Res 35, 1–12 (2010). https://doi.org/10.1007/s11064-009-0043-4
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DOI: https://doi.org/10.1007/s11064-009-0043-4