Correction of acidosis in humans with CRF decreases protein degradation and amino acid oxidation.
The effect of correction of acidosis in chronic renal failure (CRF) was determined from the kinetics of infused L-[1-13C]leucine. Nine CRF patients were studied before (acid) and after two 4-wk treatment periods of sodium bicarbonate (NaHCO3) and sodium chloride (NaCl) (pH: acid 7.31 +/- 0.01, NaHCO3 7.38 +/- 0.01, NaCl 7.30 +/- 0.01). Leucine appearance from body protein (PD), leucine disappearance into body protein (PS) and leucine oxidation (O) decreased significantly with correction of acidosis (PD: acid 122.4 +/- 6.1, NaHCO3 88.3 +/- 6.9, NaCl 116.2 +/- 9.1 mumol.kg-1.h-1, acid vs. NaHCO3 P < 0.01, NaHCO3 vs. NaCl P < 0.01, acid vs. NaCl NS; PS: acid 109.4 +/- 5.6, NaHCO3 79.0 +/- 6.3, NaCl 101.3 +/- 7.7 mumol.kg-1.h-1, acid vs. NaHCO3 P < 0.01, NaHCO3 vs. NaCl P < 0.01, acid vs. NaCl NS; O: acid 13.0 +/- 1.2, NaHCO3 9.2 +/- 0.9, NaCl 15.0 +/- 1.9 mumol.kg-1.h-1, acid vs. NaHCO3 P < 0.05, NaHCO3 vs. NaCl P < 0.01, acid vs. NaCl NS). There were no significant changes in plasma amino acid concentrations. These results confirm that correction of acidosis in chronic renal failure removes a potential catabolic factor.
Department of Medicine, University of Newcastle upon Tyne, United Kingdom.
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D
Reaich
S M
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Channon
C M
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Scrimgeour
S E
SE
Daley
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R
Wilkinson
T H
TH
Goodship
D000138:Acidosis / Q000188:drug therapy* / Q000209:etiology; D000293:Adolescent; D000328:Adult; D000368:Aged; D000596:Amino Acids / Q000097:blood / Q000378:metabolism*; D001639:Bicarbonates / Q000097:blood / Q000627:therapeutic use*; D001786:Blood Glucose / Q000032:analysis; D001794:Blood Pressure / Q000187:drug effects; D001835:Body Weight / Q000187:drug effects; D005260:Female; D006728:Hormones / Q000097:blood; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007676:Kidney Failure, Chronic / Q000150:complications / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D010084:Oxidation-Reduction; D011506:Proteins / Q000378:metabolism*; D012964:Sodium / Q000627:therapeutic use*; D017693:Sodium Bicarbonate; D012965:Sodium Chloride / Q000494:pharmacology; D014508:Urea / Q000097:blood
D000596:Amino Acids; D001639:Bicarbonates; D001786:Blood Glucose; D006728:Hormones; D011506:Proteins; D012965:Sodium Chloride; D017693:Sodium Bicarbonate; D014508:Urea; D012964:Sodium