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- W2143693669 abstract "Mice lacking the transcription factor NF-E2 p45-related factor 2 (Nrf2) develop more severe nonalcoholic steatohepatitis (NASH), with cirrhosis, than wild-type (Nrf2+/+) mice when fed a high-fat (HF) diet for 24 weeks. Although NASH is usually associated with insulin resistance, HF-fed Nrf2−/− mice exhibited better insulin sensitivity than HF-fed Nrf2+/+ mice. In livers of HF-fed mice, loss of Nrf2 resulted in greater induction of lipogenic genes, lower expression of β-oxidation genes, greater reduction in AMP-activated protein kinase (AMPK) levels, and diminished acetyl coenzyme A (CoA) carboxylase phosphorylation than in the wild-type livers, which is consistent with greater fatty acid (FA) synthesis in Nrf2−/− livers. Moreover, primary Nrf2−/− hepatocytes displayed lower glucose and FA oxidation than Nrf2+/+ hepatocytes, with FA oxidation partially rescued by treatment with AMPK activators. The unfolded protein response (UPR) was perturbed in control regular-chow (RC)-fed Nrf2−/− mouse livers, and this was associated with constitutive activation of NF-κB and JNK, along with upregulation of inflammatory genes. The HF diet elicited an antioxidant response in Nrf2+/+ livers, and as this was compromised in Nrf2−/− livers, they suffered oxidative stress. Therefore, Nrf2 protects against NASH by suppressing lipogenesis, supporting mitochondrial function, increasing the threshold for the UPR and inflammation, and enabling adaptation to HF-diet-induced oxidative stress." @default.
- W2143693669 created "2016-06-24" @default.
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- W2143693669 date "2014-09-01" @default.
- W2143693669 modified "2023-10-12" @default.
- W2143693669 title "Susceptibility of Nrf2-Null Mice to Steatohepatitis and Cirrhosis upon Consumption of a High-Fat Diet Is Associated with Oxidative Stress, Perturbation of the Unfolded Protein Response, and Disturbance in the Expression of Metabolic Enzymes but Not with Insulin Resistance" @default.
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- W2143693669 doi "https://doi.org/10.1128/mcb.00677-14" @default.
- W2143693669 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4135558" @default.
- W2143693669 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24958099" @default.
- W2143693669 hasPublicationYear "2014" @default.