New insights into intravenous peptide metabolism.

A new study of the possible advantages of each of the eight dipeptides for intravenous nutrition focuses on kinetics of tyrosine and glutamine injected intravenously. Tyrosine and glutamine are two of the three amino acids that are difficult to use directly in the preparation of nutrient solutions due to low solubility (tyrosine) and limited stability during autoclaving or storage (glutamine).