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Amniotic fluid macrophages from normal and malformed fetuses
Abstract:
Amniotic fluid cells from normal and abnormal fetuses (neural tube defects and abdominal wall lesions) were examined uncultured and after short-term culture for macrophages. Morphology, adherence, phagocytosis, presence of Fc receptors and non-specific esterase were studied. The existence of macrophages in normal and abnormal fluids was confirmed, although the percentage and the absolute numbers varied greatly from specimen to specimen. The most marked increases in total macrophages were in cases of anencephaly. The significance of these macrophages and their value in prenatal diagnosis are discussed.
Insights
Macrophages are present in amniotic fluid of both normal and abnormal fetuses, with notable increases in anencephaly cases. Their presence and numbers may offer insights for prenatal diagnosis.
Area of Science:
- Obstetrics and Gynecology
- Cell Biology
- Prenatal Diagnostics
Background:
- Amniotic fluid contains fetal cells and immune cells.
- Macrophages are key immune cells involved in various biological processes.
Purpose of the Study:
- To investigate the presence and characteristics of macrophages in amniotic fluid.
- To determine if macrophage levels differ between normal and abnormal fetuses.
- To assess the potential of macrophages in prenatal diagnosis.
Main Methods:
- Amniotic fluid cells from normal and abnormal fetuses were analyzed.
- Cells were examined uncultured and after short-term culture.
- Morphology, adherence, phagocytosis, Fc receptor presence, and non-specific esterase activity were studied.
Main Results:
- Macrophages were confirmed in amniotic fluid from both normal and abnormal fetuses.
- Significant variation in macrophage percentage and absolute numbers was observed.
- The most substantial increase in total macrophages was found in anencephaly cases.
Conclusions:
- Macrophages exist in amniotic fluid, with numbers varying significantly.
- Elevated macrophage levels, particularly in anencephaly, suggest potential diagnostic value.
- Further research is needed to establish the role of amniotic fluid macrophages in prenatal diagnosis.