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HIF1a Inhibitor Rescues Acute-on-Chronic Liver Failure
Fang Xie1, Jinling Dong2, Yueke Zhu2
1Beijing You an Hospital, Capital Medical University, Beijing, China; Beijing Institute of Hepatology, Beijing, P.R. China.
Introduction And Objectives:
Hypoxia-inducible factor-1α is critically involved in the pathogenesis of liver diseases. Its inhibitor genistein attenuated D-galactosamine (D-GalN)-induced liver damage. However, the role of genistein in acute-on-chronic liver failure (ACLF) is unclear. The influence of genistein on reactive oxygen species (ROS) and hepatocyte functions were evaluated in a rat model of ACLF.
Material And Methods:
Genistein [20mg/ (kg. day)]/coenzyme Q10 [10mg/ (kg. day)]/lipoic acid [20mg/ (kg. day)] was administered via the intra-gastric route daily for 6 weeks as co-treatment to the rats in the experimental groups. Then, 100μg/kg LPS combined with 0.5g/kg D-GalN was injected intraperitoneally to attack the rats.
Results:
Genistein significantly attenuated LPS/D-GalN-induced ACLF, characterized by ameliorated gross appearance and microscopic histopathology of liver, reduced AST level in serum, whereas increased levels of ATP, ADP/O, and respiratory control ratio (RCR) in mitochondria. Genistein suppressed necrosis and ROS production.
Conclusion:
These results suggested that genistein could protect against ACLF through inhibiting cellular ROS production and necrosis, improving RCR, and decreasing permeability transition pores in mitochondrial, which was similar as mitochondrial protective agent coenzyme Q10.
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