Cited by 93Liver Disease and TransplantationClinical Nutrition and GastroenterologyNutrition and Health in Aging

Protein metabolism in liver cirrhosis: from albumin to muscle myofibrils

Tessari, Paolo·2003·Current Opinion in Clinical Nutrition and Metabolic Care

Abstract

PURPOSE OF REVIEW: Liver cirrhosis in the advanced state is characterized by protein wasting, as indicated by the loss of muscle mass, hypoalbuminemia, and an abnormal amino acid profile. The protein wasting condition cirrhosis is associated with a poor prognosis and reduced survival. Poor nutrition, metabolic and hormonal abnormalities, and other disease-associated alterations may all concur to protein wasting. An understanding of the causes and mechanisms leading to protein wasting in cirrhosis may help in the development of nutritional interventions and new therapies. RECENT FINDINGS: Albumin and muscle protein turnover in cirrhotic patients have been studied in vivo with the aid of isotope dilution techniques or organ catheterization. Albumin synthesis appears to parallel liver function, i.e. the more compromised is the liver, the less is the albumin production rate. Meal-induced albumin synthesis is impaired even in compensated cirrhotic patients. Skeletal muscle protein synthesis is diminished in cirrhosis, and total muscle protein breakdown also appears to be increased, thus explaining the reduced muscle mass. Either hormone or substrate resistance, or newly involved substances (cytokines, insulin-like growth factor 1, leptin) may play a role in the reduced synthesis of both albumin and muscle proteins in liver cirrhosis. SUMMARY: Abnormalities of both albumin and muscle protein turnover have been demonstrated in liver cirrhotic patients. The possible role of the multiple hormonal and metabolic abnormalities of this disease, as well that of cytokines and other recently discovered substances, need to be investigated further.

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Crossref · 10.1097/00075197-200301000-00012

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Authors
Tessari, P.
Affiliations
University of Padua (IT)
Corresponding author
Tessari, Paolo
Venue
Current Opinion in Clinical Nutrition and Metabolic Care
Published
2003-01
Volume
6
Issue
1
Pages
79-85
ISSN
1363-1950 (ISSN-L)
OpenAlex
W2023650548
Cited by
93
References
49
Citations by year
2026: 1 · 2025: 3 · 2024: 4 · 2023: 2 · 2022: 5 · 2021: 8 · 2020: 3 · 2019: 4 · 2018: 5 · 2017: 6 · 2016: 4 · 2015: 2 · 2014: 5 · 2013: 7 · 2012: 5
FWCI
0.54
Type
journal article
Language
en
Open access
closed
Locations
  • Current Opinion in Clinical Nutrition & Metabolic Care (publishedVersion)
  • PubMed (publishedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion)
Topics
  • Health Sciences › Medicine › Hepatology › Liver Disease and Transplantation
  • Health Sciences › Nursing › Nutrition and Dietetics › Clinical Nutrition and Gastroenterology
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
Keywords
liver cirrhosis, protein wasting, hypoalbuminemia, albumin synthesis, muscle protein turnover, skeletal muscle atrophy, amino acid metabolism, insulin resistance, insulin-like growth factor I, leptin, cytokines, dietary intervention
MeSH terms
Albumins, Humans, Insulin-Like Growth Factor I, Liver Cirrhosis, Muscle Proteins, Muscular Atrophy, Myofibrils, Cytokines, Muscle, Skeletal, Leptin

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