... regions. 2 10 1973 © 1974 The Biochemical Society and the Medical Research Society 1974 intestinal peptidases dipeptides rat rabbit monkey guinea-pig Clinical Science and Molecular Medicine (1974) 46, 501-510. A COMPARATIVE STUDY OF THE DISTRIBUTION OF SOLUBLE A N D PARTICULATE...

...D. J. Boullin; R. F. Crampton; Christine E. Heading; D. Pelling 1. The intestinal absorption of carnosine, glycylglycine, glycyl-d-phenylalanine, glycyl-l-phenylalanine, glycyl-l-proline and l-prolylglycine were investigated after intraluminal injection of dipeptide into anaesthetized rats. 2...

...-phenylalanine, l-leucyl-l-leucine about 24 times those of the dd-isomer, and glycyl-l-tryptophan 5 times those of glycyl-d-tryptophan. The mixed ld- and ld-isomers were absorbed at intermediate rates. 2. Absorption rates were positively correlated with the rate of hydrolysis of each dipeptide by homogenates...

...D. Burston; Jill M. Addison; D. M. Matthews 1. The characteristics of transport and hydrolysis of twenty-two dipeptides containing basic and acidic amino acids by rat ileal rings were investigated in vitro. The peptides included combinations of basic and neutral, basic and basic, basic and acidic...