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[Maternal immunophenotypic profile in normal pregnancy and preterm birth]
Iolanda Blidaru1, F Zugun, Corina Cianga
1Facultatea de Medicină Clinica a IV-a Obstetrică Ginecologie, Maternitatea Cuza-Vodă, Universitatea de Medicină şi Farmacie Gr.T. Popa Iaşi.
Summary
Normal pregnancy involves a suppressive immune cell profile. Preterm birth disrupts this immune balance, indicating its significant role in pregnancy complications.
Area of Science:
- Immunology
- Obstetrics
- Cell Biology
Context:
- Maternal immune tolerance to fetal allograft is crucial for normal pregnancy.
- Preterm birth is associated with potential disruptions in the maternal immune response.
- Understanding these immune shifts is key to addressing pregnancy complications.
Purpose:
- To analyze and compare the immunophenotypic profiles of peripheral and retroplacental blood leukocytes.
- To investigate differences between normal term pregnancies, preterm births, and non-pregnant controls.
- To identify immune markers associated with preterm birth.
Summary:
- Normal pregnancies exhibit decreased lymphocytes, monocytes, and B cells, with elevated granulocytes, T-lymphocytes, and T CD8+ subsets compared to controls.
- A decreased CD4/CD8 ratio was observed in normal pregnancies, particularly in retroplacental blood.
- Preterm birth cases showed increased lymphocytes and B cells, reduced T CD8+ cells, and an elevated CD4/CD8 ratio compared to normal pregnancies.
Impact:
- Normal pregnancy establishes a specific, suppressive immunophenotypic profile.
- Impairment of this profile in preterm birth suggests a strong immunological involvement.
- Findings may inform strategies for preventing or managing preterm birth.