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Table 2 Endogenous rate of appearance (R a ) for phenylalanine (Phe) and glutamine (Gln) and calculated origin of produced glutamine in critically ill patients (n = 11) fully fed, with and without intravenous glutamine supplementation

From: Endogenous glutamine production in critically ill patients: the effect of exogenous glutamine supplementation

  Baseline fed Fed and Gln supplemented P-value
Endogenous Ra Phe (μmol/kg/minute) 1.22 ± 0.31 1.36 ± 0.52 0.326
Endogenous Ra Gln (μmol/kg/minute) 7.11 ± 1.90 8.08 ± 1.53 0.009
Gln from protein breakdown (μmol/kg/minute) 1.08 ± 0.27 1.20 ± 0.43 0.336
Gln from de novo synthesis (μmol/kg/minute) 6.02 ± 1.82 6.89 ± 1.24 0.025
  1. Results are presented as mean ± SD.