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  • Title: The nutritional/metabolic and hormonal effects of 8 weeks of continuous ambulatory peritoneal dialysis with a 1% amino acid solution.
    Author: Arfeen S, Goodship TH, Kirkwood A, Ward MK.
    Journal: Clin Nephrol; 1990 Apr; 33(4):192-99. PubMed ID: 2190721.
    Abstract:
    Circulating intermediary metabolites, hormones and plasma amino acids (AA) were measured at intervals over 24 hours in seven non-diabetic patients with chronic renal failure treated by continuous ambulatory peritoneal dialysis (CAPD), before and after an 8-week period during which a 1% amino acid dialysis solution replaced two of the four dextrose exchanges. Mean 24-hour concentrations of plasma total and essential amino acid were higher following the AA dialysate (total pre: 2893 +/- 185; total post: 3357 +/- 244; p less than 0.05; essential pre: 751 +/- 47; essential post: 1064 +/- 57 mumol/l; p less than 0.001). Mean 24-hour concentrations of the branched chain amino acids leucine, isoleucine and valine were higher following the AA dialysate (valine pre: 201 +/- 18; valine post: 321 +/- 19; p less than 0.001; leucine pre: 102 +/- 6; leucine post: 127 +/- 9; p less than 0.01; isoleucine pre: 67 +/- 5; isoleucine post: 85 +/- 7 mumol/l; p less than 0.05). Serum albumin increased with use of the AA dialysate (pre: 36 +/- 1; 2 weeks, 40 +/- 1; 4 weeks, 40 +/- 1; 6 weeks, 41 +/- 1; 8 weeks, 38 +/- 2 g/l). 24-hour profiles and mean 24-hour concentrations of blood glucose, serum insulin, serum triglyceride, plasma non-esterified fatty acids (NEFA), plasma 3-hydroxybutyrate and plasma alanine were unchanged after the AA period. Plasma bicarbonate decreased with use of the amino acid solution (pre: 21 +/- 1; 2 weeks, 18 +/- 1; 4 weeks, 18 +/- 1; 6 weeks, 16 +/- 1; 8 weeks, 16 +/- 1 mmol/l). Use of a 1% amino acid solution over an 8-week period in CAPD patients improves the plasma amino acid profile but results in a metabolic acidosis. The other endocrine and metabolic abnormalities of uremia remain unchanged.
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