Splanchnic exchange of glucose, 20 individual amino acids, lactate, and pyruvate was studied in normal subjects in the postabsorptive state and after stimulation of endogenous insulin secretion by infusion of glucose at two dose levels. In the basal state, mean splanchnic glucose production was 3.4 mg/kg per min. A net uptake of lactate, pyruvate, and nine amino acids was observed, with alanine accounting for half of the total splanchnic-amino acid extraction.
Philip Felig, John Wahren
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