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Body protein metabolism and plasma amino acids in cirrhosis of the liver. The effect of varying the branched chain amino acid content of intravenous amino acid solutions.
Clin Nutr 1984; 3(3):153-62CN

Abstract

Body protein metabolism and plasma amino acids were measured in 37 patients with stable cirrhosis of the liver to assess the effect of disease severity (Child's classification). Thirty two patients underwent a second series of measurements while nutrition was administered intravenously as one of five different infusions. Four infusions were formulations of amino acids with dextrose of varying branched chain amino acid content (100%, 53%, 35% and 16% branched chain to total amino acids). The fifth infusion was dextrose alone. No differences were detected in body protein synthesis and breakdown between patients on the basis of disease severity although some small differences were noted in the plasma amino acids. Infusion of dextrose alone and the 16% BCAA solution led to negative protein balance and a lowering of the plasma branched chain amino acid concentrations. Improved protein balance was observed with 35% BCAA, this solution also lowered the levels of methionine and aromatic amino acids. In those patients given 53% BCAA protein balance was achieved and the plasma branched chain amino acids elevated. Protein balance also occurred with 100% BCAA, in association with marked increases in underlying protein synthesis and breakdown and with this infusion there were marked elevations in the plasma branched chain amino acids and depression of the other plasma amino acids. The increase in protein breakdown with this last formulation was unexpected and may be harmful. On the basis of these findings it is suggested that the composition of the 53% and 35% solutions may be optimal to protein metabolism and manipulation of plasma amino acids in this group of patients.

Authors+Show Affiliations

Department of Medicine and Surgery, University of Newcastle upon Tyne, UK.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16829451

Citation

Holdsworth, J D., et al. "Body Protein Metabolism and Plasma Amino Acids in Cirrhosis of the Liver. the Effect of Varying the Branched Chain Amino Acid Content of Intravenous Amino Acid Solutions." Clinical Nutrition (Edinburgh, Scotland), vol. 3, no. 3, 1984, pp. 153-62.
Holdsworth JD, Dionigi P, Clague MB, et al. Body protein metabolism and plasma amino acids in cirrhosis of the liver. The effect of varying the branched chain amino acid content of intravenous amino acid solutions. Clin Nutr. 1984;3(3):153-62.
Holdsworth, J. D., Dionigi, P., Clague, M. B., James, O. F., & Wright, P. D. (1984). Body protein metabolism and plasma amino acids in cirrhosis of the liver. The effect of varying the branched chain amino acid content of intravenous amino acid solutions. Clinical Nutrition (Edinburgh, Scotland), 3(3), pp. 153-62.
Holdsworth JD, et al. Body Protein Metabolism and Plasma Amino Acids in Cirrhosis of the Liver. the Effect of Varying the Branched Chain Amino Acid Content of Intravenous Amino Acid Solutions. Clin Nutr. 1984;3(3):153-62. PubMed PMID: 16829451.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Body protein metabolism and plasma amino acids in cirrhosis of the liver. The effect of varying the branched chain amino acid content of intravenous amino acid solutions. AU - Holdsworth,J D, AU - Dionigi,P, AU - Clague,M B, AU - James,O F, AU - Wright,P D, PY - 1984/10/1/pubmed PY - 1984/10/1/medline PY - 1984/10/1/entrez SP - 153 EP - 62 JF - Clinical nutrition (Edinburgh, Scotland) JO - Clin Nutr VL - 3 IS - 3 N2 - Body protein metabolism and plasma amino acids were measured in 37 patients with stable cirrhosis of the liver to assess the effect of disease severity (Child's classification). Thirty two patients underwent a second series of measurements while nutrition was administered intravenously as one of five different infusions. Four infusions were formulations of amino acids with dextrose of varying branched chain amino acid content (100%, 53%, 35% and 16% branched chain to total amino acids). The fifth infusion was dextrose alone. No differences were detected in body protein synthesis and breakdown between patients on the basis of disease severity although some small differences were noted in the plasma amino acids. Infusion of dextrose alone and the 16% BCAA solution led to negative protein balance and a lowering of the plasma branched chain amino acid concentrations. Improved protein balance was observed with 35% BCAA, this solution also lowered the levels of methionine and aromatic amino acids. In those patients given 53% BCAA protein balance was achieved and the plasma branched chain amino acids elevated. Protein balance also occurred with 100% BCAA, in association with marked increases in underlying protein synthesis and breakdown and with this infusion there were marked elevations in the plasma branched chain amino acids and depression of the other plasma amino acids. The increase in protein breakdown with this last formulation was unexpected and may be harmful. On the basis of these findings it is suggested that the composition of the 53% and 35% solutions may be optimal to protein metabolism and manipulation of plasma amino acids in this group of patients. SN - 0261-5614 UR - https://www.unboundmedicine.com/medline/citation/16829451/Body_protein_metabolism_and_plasma_amino_acids_in_cirrhosis_of_the_liver__The_effect_of_varying_the_branched_chain_amino_acid_content_of_intravenous_amino_acid_solutions_ L2 - https://linkinghub.elsevier.com/retrieve/pii/0261-5614(84)90048-7 DB - PRIME DP - Unbound Medicine ER -