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Related Experiment Videos

Soluble P-selectin levels during normal pregnancy: a longitudinal study.

V A Holmes1, J M W Wallace, W S Gilmore

  • 1Northern Ireland Centre for Food and Health, University of Ulster, Coleraine, UK.

BJOG : an International Journal of Obstetrics and Gynaecology
|September 25, 2002
PubMed
Summary

Soluble P-selectin (sP-selectin) levels are significantly elevated in normal pregnancy, indicating increased platelet activation. This study clarifies previous conflicting results on platelet behavior during gestation.

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Area of Science:

  • Reproductive biology and hematology.
  • Biomarkers of pregnancy and platelet function.

Background:

  • Platelet activation is a complex process with implications for various physiological and pathological conditions.
  • Previous studies on platelet activation during normal pregnancy have yielded conflicting results.
  • Soluble P-selectin (sP-selectin) is a marker of platelet activation.

Purpose of the Study:

  • To compare soluble P-selectin (sP-selectin) levels and platelet parameters in normal pregnant women versus non-pregnant controls.
  • To assess sP-selectin as a reliable indicator of platelet activation during normal pregnancy.

Main Methods:

  • A longitudinal case-control study involving 120 normal pregnant women and 41 non-pregnant controls.
  • Plasma sP-selectin concentrations were measured using a quantitative sandwich immunoassay.

Related Experiment Videos

  • Platelet parameters were analyzed using a SYSMEX SE 9500 analyzer at 12, 20, and 35 weeks of gestation, and postpartum.

    • Main Results:

    • Soluble P-selectin levels were significantly higher in pregnant women at 20 and 35 weeks of gestation compared to non-pregnant controls (P < 0.01 and P < 0.001).
    • Positive correlations were observed between sP-selectin and platelet count in pregnant women at 20 and 35 weeks (r = 0.247, P < 0.05 and r = 0.360, P < 0.001).
    • Concentration of sP-selectin per platelet was also significantly elevated in pregnant women during the second and third trimesters.

    Conclusions:

    • Plasma sP-selectin concentrations are significantly elevated in the second and third trimesters of normal pregnancy.
    • This finding supports increased platelet activation during normal pregnancy, resolving previous discrepancies in the literature.
    • sP-selectin serves as a valuable biomarker for assessing platelet activation in pregnancy.