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- W2091330563 abstract "Steatosis is an accumulation of triglycerides in the liver. Although an excessive availability of plasma fatty acids is an important determinant of steatosis, lipid synthesis from glucose (lipogenesis) is now also considered as an important contributing factor. Lipogenesis is an insulin- and glucose-dependent process that is under the control of specific transcription factors, sterol regulatory element binding protein 1c (SREBP-1c), activated by insulin and carbohydrate response element binding protein (ChREBP) activated by glucose. Insulin induces the maturation of SREBP-1c by a proteolytic mechanism initiated in the endoplasmic reticulum (ER). SREBP-1c in turn activates glycolytic gene expression, allowing glucose metabolism, and lipogenic genes in conjunction with ChREBP. Lipogenesis activation in the liver of obese markedly insulin-resistant steatotic rodents is then paradoxical. Recent data suggest that the activation of SREBP-1c and thus of lipogenesis is secondary in the steatotic liver to an ER stress. The ER stress activates the cleavage of SREBP-1c independent of insulin, thus explaining the paradoxical stimulation of lipogenesis in an insulin-resistant liver. Inhibition of the ER stress in obese rodents decreases SREBP-1c activation and lipogenesis and improves markedly hepatic steatosis and insulin sensitivity. ER is thus a new partner in steatosis and metabolic syndrome which is worth considering as a potential therapeutic target." @default.
- W2091330563 created "2016-06-24" @default.
- W2091330563 creator A5061219111 @default.
- W2091330563 creator A5077044814 @default.
- W2091330563 date "2010-10-01" @default.
- W2091330563 modified "2023-10-10" @default.
- W2091330563 title "Hepatic steatosis: a role for de novo lipogenesis and the transcription factor SREBP-1c" @default.
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- W2091330563 doi "https://doi.org/10.1111/j.1463-1326.2010.01275.x" @default.
- W2091330563 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21029304" @default.
- W2091330563 hasPublicationYear "2010" @default.