Activités des hydrolases rénales au cours du développement pré- et post-natal de la souris

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Abstract
The fetal and postnatal activity patterns of different hydrolytic enzymes (alkaline phosphatase, .gamma.-glutamyltransferase, trehalase, maltase, glucoamylase, lactase, and sucrase) were examined in mouse renal homogenates. Alkaline phosphatase and .gamma.-glutamyltransferase activities presented approximately similar changes. They increased from 18 days of gestation up to 30 days after birth. These activities showed marked increases during the 3rd and 4th postnatal weeks. A similar important rise was observed for trehalase activity at the end of the suckling period. Maltase activity increased gradually after birth. Traces of lactase, sucrase, and glucoamylase activities were detected at each developmental stage.