title: Assessment of a comparison of colorimetric methods used for oxytocinase determination.
abstract: The correlation of three colorimetric oxytocinase determination methods used in clinics was compared and assessed. It was found that the new methods, the method of Kleiner and Brounet-Yager, and that of Usategui-Gomez et al., show a high correlation with respect to the Tuppy and Nesvadba method (modified by Klimek) the usefulness of which has already been proved. The method of Usategui-Gomez et al., using L-cystine-bis-p-nitroanilide as substrate, is more sensitive and has more advantages.
mesh_terms: D000626:Aminopeptidases / Q000097:blood*; D003124:Colorimetry / Q000379:methods; D010122:Cystinyl Aminopeptidase / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy
chemical_list: D000626:Aminopeptidases; D010122:Cystinyl Aminopeptidase