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- W2155405870 abstract "Reactive oxygen species (ROS) act as signaling intermediates regulating multiple cellular processes. The fate and disposal of the signaling species are determined by the actions of antioxidants, particularly glutathione (GSH). The mitochondrial pool of GSH (mGSH) arises from the transport of cytosol GSH by a specific mitochondrial carrier and is responsible for the maintenance of a healthy competent organelle. The depletion of mGSH upon impairment of the mitochondrial transport activity leaves mitochondria unprotected from damaging effects of ROS overgeneration within the mitochondrial electron transport chain. Tumor necrosis factor-alpha (TNF-alpha) has emerged as a key player in the progression of the alcohol-induced liver disease (ALD), and is known to target mitochondria. Key components of TNF signaling include sphingolipids, particularly ceramide generated from acidic sphingomyelinase activation serving as a source for gangliosides. In experimental models alcohol consumption enhances cholesterol levels and subsequent deposition into mitochondria resulting in selective decrease in the mGSH stores which is sufficient by itself to sensitize hepatocytes to TNF-alpha-mediated cell death. Thus, the combination of TNF-alpha overproduction, enhanced glycosphingolipid generation and selective mGSH depletion by alcohol intake cooperate making the liver sensitive to alcohol." @default.
- W2155405870 created "2016-06-24" @default.
- W2155405870 creator A5019266732 @default.
- W2155405870 date "2003-04-01" @default.
- W2155405870 modified "2023-10-18" @default.
- W2155405870 title "Alcohol-induced liver disease: when fat and oxidative stress meet" @default.
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- W2155405870 doi "https://doi.org/10.1016/s1665-2681(19)32144-1" @default.
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