[Assay of cystine aminopeptidase activity on a centrifuge analyser]. / Dosage de l'activité cystine-aminopeptidase sérique sur analyseur centrifuge.

ABSTRACT

The assay of the serum cystine-aminopeptidase activity, of placental origin, is a useful test for monitoring pregnancy. The authors present an adaptation of Van Oudheusen's method on a centrifuge analyser which allows a rapid kinetic measurement of this activity and they justify their choice of procedure. The values obtained in non-pregnant women and in pregnancies of between 8 and 40 weeks of amenorrhoea are presented.