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alpha-Fetoprotein values in monkey (Macaca mulatta) pregnancy

R A Ehrenkranz, R A Chez, G L Princler

    Teratology
    |December 1, 1977
    PubMed
    Summary
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    Rhesus monkeys do not accurately model human pregnancy alpha-fetoprotein (AFP) dynamics. While AFP levels changed with gestational age in monkeys, the patterns differed significantly from human pregnancy data, limiting their use as a predictive model.

    Area of Science:

    • Reproductive biology
    • Biochemistry
    • Primate models

    Background:

    • Alpha-fetoprotein (AFP) is a crucial biomarker in human pregnancy, with its dynamic changes offering insights into fetal development and health.
    • Understanding AFP metabolism is vital for diagnosing and monitoring pregnancy complications.
    • Animal models are frequently used to study human physiological processes, but their applicability must be carefully validated.

    Purpose of the Study:

    • To evaluate the pregnant rhesus monkey (Macaca mulatta) as a potential model for human pregnancy alpha-fetoprotein (AFP) metabolism.
    • To compare AFP concentration dynamics in maternal serum, fetal serum, and amniotic fluid of rhesus monkeys with those reported in human pregnancy.

    Main Methods:

    • Radioimmunoassay (RIA) was employed to quantify AFP levels.

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  • AFP concentrations were measured in maternal serum, fetal serum, and amniotic fluid of pregnant rhesus monkeys.
  • Data were analyzed for correlations with gestational age.

    • Main Results:

    • Significant negative correlations were observed between gestational age and AFP concentrations in maternal serum, fetal serum, and amniotic fluid.
    • These observed AFP concentration trends in rhesus monkeys did not align with established patterns seen in human pregnancy.
    • The study found discrepancies between rhesus monkey and human AFP dynamics across different gestational stages.

    Conclusions:

    • The pregnant rhesus monkey exhibits limited utility as a model for studying alpha-fetoprotein (AFP) metabolism in the context of human pregnancy.
    • Differences in AFP dynamics between rhesus monkeys and humans suggest caution when extrapolating findings from this animal model.
    • Further research may be needed to identify more suitable animal models for human pregnancy-related AFP studies.