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Platelet-activating factor levels in human follicular and amniotic fluids
A López Bernal1, G E Newman, P J Phizackerley
1Nuffield Department of Obstetrics and Gynaecology, John Radcliffe Hospital, Headington, Oxford, UK.
Summary
Platelet-activating factor (PAF) was detected in human follicular and amniotic fluids. PAF levels suggest its involvement in ovulation and labor, though further research is needed.
Area of Science:
- Reproductive biology
- Endocrinology
- Biochemistry
Background:
- Platelet-activating factor (PAF) is a potent lipid mediator.
- Its role in human reproductive processes is not fully understood.
Purpose of the Study:
- To quantify Platelet-activating factor (PAF) levels in human follicular and amniotic fluids.
- To investigate the potential involvement of PAF in ovulation and parturition.
Main Methods:
- Quantification of PAF using a commercially available 125I-radioimmunoassay.
- Analysis of follicular fluid from in vitro fertilization patients.
- Analysis of amniotic fluid at different stages of pregnancy and labor.
Main Results:
- PAF levels in mature follicles were similar in successful and unsuccessful IVF cycles.
- PAF was detected in mid-trimester amniotic fluid.
- PAF levels increased significantly in amniotic fluid following spontaneous labor and vaginal delivery compared to elective Cesarean section before labor.
Conclusions:
- The findings suggest a potential role for PAF in ovulation and parturition.
- Further studies are required to elucidate the precise mechanisms of PAF action in these processes.
- Radioimmunoassay offers an accurate and reproducible method for PAF estimation compared to bioassays, despite its cost.