Energy balance
Loss of the mitochondrial protein BNip3 in the liver causes hepatic steatosis and steatohepatitis by increasing lipid synthesis, reducing fatty acid oxidation, and impairing mitochondrial integrity.
Maintaining healthy mitochondrial turnover (mitophagy) is crucial for liver health. While increasing mitochondrial biogenesis (e.g., through exercise) is generally beneficial, it must be balanced with the clearance of damaged mitochondria. Disruption in this balance can lead to fatty liver disease, even if total mitochondrial numbers appear high.
We have shown for the first time that BNip3 is required to prevent excess lipid accumulation in the liver and to promote hepatic glucose output in response to fasting and that loss of BNip3 leads to steatohepatitis.
Why this rating
High-quality in vivo mouse models with multiple metabolic assays, though not a human clinical trial.
Source
BNip3 Regulates Mitochondrial Function and Lipid Metabolism in the Liver
D.R. Glick et al. · Molecular and Cellular Biology · 2012
DOI 10.1128/mcb.00167-12
More from this paper
- BNip3 is required for proper hepatic glucose output during fasting; its absence impairs gluconeogenesis and glycogenolysis, leading to hypoglycemia.Good
- BNip3 regulates lipid metabolism by balancing mitochondrial mass and function; its absence leads to increased lipogenesis and reduced fatty acid oxidation.Good
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