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beta-Glucuronidase activity in amniotic fluid

J Kamarýt, P Matýsek

    Journal of Clinical Chemistry and Clinical Biochemistry. Zeitschrift Fur Klinische Chemie Und Klinische Biochemie
    |October 1, 1980
    PubMed
    Summary
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    Beta-glucuronidase activity in amniotic fluid shows a bimodal distribution in complicated pregnancies. Extremely high enzyme levels were exclusively observed in male fetuses, potentially linked to androgen stimulation.

    Area of Science:

    • Biochemistry
    • Reproductive Biology
    • Prenatal Diagnostics

    Background:

    • Beta-glucuronidase is an enzyme present in amniotic fluid.
    • Its activity can vary during pregnancy.

    Purpose of the Study:

    • To investigate the distribution of beta-glucuronidase activity in amniotic fluid from third-trimester complicated gestations.
    • To explore potential correlations with pregnancy complications and fetal sex.

    Main Methods:

    • Transabdominal amniocentesis was performed to collect amniotic fluid samples.
    • Beta-glucuronidase enzyme activity was measured in the collected samples.

    Main Results:

    • A bimodal distribution of beta-glucuronidase activity was observed, with distinct low and extremely high activity groups.

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  • No significant correlation was found between enzyme activity levels and specific pregnancy complications.
  • All cases with extremely high beta-glucuronidase activity involved male fetuses.

    • Conclusions:

    • Fetal sex is associated with extremely high beta-glucuronidase activity in amniotic fluid during the third trimester.
    • Androgenic stimulation may contribute to the elevated enzyme activity observed in male fetuses.