Intravenous energy and amino acids in the preterm newborn infant: effects on metabolic rate and potential mechanisms of action.


The effects of intravenously administered amino acids and of varying amounts of energy on metabolic rate were studied and potential mechanisms examined in 19 healthy 4- to 6-day-old preterm (30 to 32 weeks gestation) infants. The infants were randomized to three groups. Group 1 (n = 6) received nonprotein energy 38 kcal/kg/d; group 2 (n = 5), 64 kcal/kg/d… (More)


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