[The effect of sodium ions on amino acid and peptide assimilation in the small intestine of developing chicks].
The absorption of free glycine and L-tryptophan as well as amino acids released in the hydrolysis of glycil-L-leucine and glycil-L-tryptophan was studied in vitro with accumulating preparations of intestinal mucosa of 1-65-day old chicken. Two ways of absorption of free and peptide amino acids were found: sodium-dependent and sodium-independent. Intensity of each of them depended on the age of chicken and was dissimilar for the compounds. The sodium-independent way is more important for glycine than for free amino acid. Absorption of glycil-L-tryptophan as well as its amino acids is mainly performed by the sodium-dependent way.
Kushak
R I
RI
Basova
N A
NA
D000375:Aging / Q000187:drug effects / Q000378:metabolism; D000596:Amino Acids / Q000378:metabolism*; D000818:Animals; D002645:Chickens / Q000378:metabolism*; D004151:Dipeptides / Q000378:metabolism; D005998:Glycine / Q000378:metabolism; D007408:Intestinal Absorption / Q000187:drug effects* / Q000502:physiology; D007413:Intestinal Mucosa / Q000187:drug effects / Q000378:metabolism; D007421:Intestine, Small / Q000187:drug effects* / Q000378:metabolism; D010455:Peptides / Q000378:metabolism*; D012964:Sodium / Q000494:pharmacology*; D014364:Tryptophan / Q000378:metabolism
D000596:Amino Acids; D004151:Dipeptides; D010455:Peptides; C032120:glycyltryptophan; D014364:Tryptophan; C015905:glycylleucine; D012964:Sodium; D005998:Glycine
Vliianie ionov natriia na usvoenie aminokislot i peptidov v tonkoĭ kishke razvivaiushchikhsia tsypliat.