Effect of a fat emulsion on the free amino acid content in the blood when administered enterally together with amino acids

: The influence of an intralipid fatty emulsion on the absorbability of polyamine amino acid mixtures was studied during their administration through a tube into the duodenum of white rats. Polyamine was administered in a dose of 0.25 g of nominal protein, intralipid in a dose of 0.2 g of fat/g bw/day. It was found that polyamine administered into the small intestine was intensely absorbed during the first two hours which was evidence by an increased content of amino acids in the blood. Intralipid used simultaneously with polyamine intensified the absorption of the latter. Preliminary administration of intralipid promoted a more rapid polyamine absorption, especially of side branch chain amino acids. The results obtained have presented an experimental validation of using nitrous compounds after preliminary administration of fatty emulsions in enteral tube feeding.