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Related Experiment Videos

Angiogenin plasma levels during pregnancy

M Kolben1, J Bläser, K Ulm

  • 1Department of Obstetrics and Gynecology, Technical University of Munich, Germany.

American Journal of Obstetrics and Gynecology
|January 1, 1997
PubMed
Summary

Plasma angiogenin levels increase during healthy pregnancies. Significantly lower levels in patients with pathologic Doppler findings suggest impaired placental function.

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Area of Science:

  • Reproductive Medicine
  • Maternal-Fetal Medicine
  • Biochemistry

Background:

  • Angiogenin is a protein crucial for angiogenesis and tissue repair.
  • Placental development involves complex vascular remodeling processes.
  • Altered angiogenic factors are implicated in pregnancy complications.

Purpose of the Study:

  • To quantify plasma angiogenin levels in healthy pregnancies.
  • To compare angiogenin levels between uncomplicated pregnancies and those with specific pathologies.
  • To investigate the association between angiogenin levels and abnormal Doppler findings.

Main Methods:

  • Enzyme-linked immunosorbent assay (ELISA) was used to measure plasma angiogenin.
  • A case-control and observational study design was employed.

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  • Participants included healthy pregnant women (n=68) and patients with HELLP syndrome, preeclampsia-eclampsia, or pathologic Doppler findings (n=52).

    • Main Results:

    • Plasma angiogenin levels significantly correlated with gestational age in uncomplicated pregnancies, rising from 150 to 250 ng/ml (10-40 weeks).
    • Patients with highly pathologic Doppler findings exhibited significantly reduced angiogenin levels (150 ng/ml) compared to healthy matched pairs (219 ng/ml, p < 0.01).

    Conclusions:

    • Elevated plasma angiogenin during pregnancy may indicate ongoing placental development and remodeling.
    • Reduced angiogenin levels in pregnancies with pathologic Doppler findings suggest disturbed placental vascularization and impaired function.