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Updated: Aug 4, 2026
12:11
Determination of Fatty Acid Oxidation and Lipogenesis in Mouse Primary Hepatocytes
Published on: August 27, 2015
Protein metabolism and liver disease
1Liver Transplant Unit, Mayo Clinic, Rochester, MN 55905, USA.
Bailliere'S Clinical Endocrinology and Metabolism
|October 1, 1996
Summary
Liver disease disrupts protein and amino acid metabolism, leading to muscle wasting and altered amino acid levels. Hormonal and nutritional factors likely contribute to these metabolic disturbances.
Area of Science:
- Biochemistry
- Hepatology
- Clinical Nutrition
Background:
- The liver is central to protein and amino acid metabolism.
- Liver disease frequently impairs these metabolic functions.
- Disturbances manifest variably based on disease type and severity.
Purpose of the Study:
- To elucidate the changes in protein and amino acid metabolism in liver disease.
- To understand the contributing factors to these metabolic alterations.
Main Methods:
- Analysis of circulating amino acid concentrations.
- Assessment of amino acid kinetics, including leucine flux and oxidation.
- Evaluation of whole-body protein synthesis.
- Consideration of hormonal, micronutrient, and cytokine levels.
Main Results:
- Lowered circulating branched-chain amino acids and increased aromatic amino acids observed.
- Increased endogenous leucine flux and leucine oxidation indicate enhanced protein breakdown.
- Potential attenuation of protein synthesis response to amino acid infusion in cirrhosis.
- Association with muscle wasting, malnutrition, and low plasma protein levels.
Conclusions:
- Liver disease significantly alters protein and amino acid metabolism.
- Hormonal imbalances, micronutrient deficiencies, and elevated cytokines are implicated.
- Further research is needed to fully understand the pathogenesis.
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