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Amino acid losses during CAPD

C Giordano, N G De Santo, G Capodicasa

    Clinical Nephrology
    |November 1, 1980
    PubMed
    Summary
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    Continuous ambulatory peritoneal dialysis (CAPD) results in minimal amino acid loss daily. However, CAPD does not improve plasma amino acid imbalances or prevent 3-methylhistidine buildup.

    Area of Science:

    • Nephrology
    • Biochemistry
    • Metabolic Research

    Background:

    • Peritoneal dialysis is a common treatment for kidney failure.
    • Nutritional status, including amino acid levels, is crucial for patients undergoing dialysis.
    • Continuous ambulatory peritoneal dialysis (CAPD) is a specific method of peritoneal dialysis.

    Purpose of the Study:

    • To quantify daily amino acid losses during CAPD.
    • To evaluate the effect of CAPD on specific plasma amino acid ratios and metabolites.

    Main Methods:

    • Analysis of amino acid concentrations in peritoneal dialysate.
    • Measurement of plasma tyrosine and phenylalanine levels.
    • Quantification of 3-methylhistidine in plasma samples.

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    Main Results:

    • Daily amino acid losses in peritoneal dialysate were found to be less than 2 grams.
    • CAPD did not correct the plasma tyrosine/phenylalanine ratio.
    • CAPD did not prevent the accumulation of 3-methylhistidine.

    Conclusions:

    • While CAPD exhibits low daily amino acid losses, it is insufficient for correcting certain plasma amino acid imbalances.
    • Further nutritional strategies may be required to address specific metabolic alterations in CAPD patients.