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Original communication| Volume 83, ISSUE 2, P138-143, February 1978

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Arterial plasma amino acids in patients with severe burns

  • Alan C. Groves
    Correspondence
    Reprint requests: Alan C. Groves, M.D., F.R.C.S.(C.), Department of Surgery, Shaughnessy Hospital, 4500 Oak St., Vancouver, British Columbia, V6H 3N1, Canada.
    Affiliations
    From the Department of Surgery, Shaughnessy Hospital and the University of British Columbia, and the Department of Psychiatry, Kinsmen Laboratory of Neurological Research, University of British Columbia, Vancouver, British Columbia, Canada
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  • J.Paul Moore
    Affiliations
    From the Department of Surgery, Shaughnessy Hospital and the University of British Columbia, and the Department of Psychiatry, Kinsmen Laboratory of Neurological Research, University of British Columbia, Vancouver, British Columbia, Canada
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  • Louis I. Woolf
    Affiliations
    From the Department of Surgery, Shaughnessy Hospital and the University of British Columbia, and the Department of Psychiatry, Kinsmen Laboratory of Neurological Research, University of British Columbia, Vancouver, British Columbia, Canada
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  • John H. Duff
    Affiliations
    From the Department of Surgery, University Hospital and the University of Western Ontario, London, Ontario, Canada
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      Abstract

      Arterial plasma amino acids and glucagon, blood glucose, and serum insulin were measured in 10 patients on the second and third days after severe thermal injury and at the same time in 10 control patients following uncomplicated abdominal operations. On the second and third days in patients with burns, plasma glucagon (460.1 ± 270.4 and 331.0 ± 187.1 pg/ml, respectively) was higher than in the controls (p < 0.01, p < 0.05). Glucose was greater in burned patients than in controls on the second day (171.1 ± 66.1 mg%, p < 0.05) and on the third day (164.4 ± 49.0 mg%, p < 0.01); insulin was higher in those with burns on day three (45.7 ± 33.8 μU/ml, p < 0.05). The insulin:glucagon molar ratios in the two groups were not significantly different, suggesting that there are other factors which control the catabolic rate. On day two, in patients with burns, phenylalanine (79.9 ± 20.9 μmole/liter) and the key glucogenic amino acid, alanine, (387.2 ± 207.1 μmole/liter) were elevated and greater than in the controls (p < 0.05, p < 0.05). Phenylalanine remained elevated on the third day after thermal injury (87.7 ± 14.9 μmole/liter, p < 0.001). In the burned group, but not in the controls, there was a correlation between alanine and phenylalanine on both days (r = 0.73, p < 0.05, r = 0.82, p < 0.01). There was no correlation between alanine and glucagon in either group. These data suggest impaired liver metabolism following severe burns.
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