Lysozyme in amniotic fluid during rivanol-induced second trimester abortion.

Area of Science:

• Biochemistry
• Obstetrics
• Reproductive Medicine

Background:

• Amniotic fluid composition changes during pregnancy and labor.
• Lysosomal enzymes and free fatty acids play roles in biological processes.
• Second-trimester abortion induction methods require careful monitoring.

Purpose of the Study:

• To investigate changes in lysozyme and free arachidonic acid concentrations in amniotic fluid during induced second-trimester abortion.
• To explore the potential link between these biochemical markers and fetal membrane integrity.

Main Methods:

• Eight patients undergoing second-trimester abortion induction.
• Extraamniotic instillation of 0.1% Rivanol for abortion induction.
• Measurement of lysozyme and free arachidonic acid concentrations in amniotic fluid.

Main Results:

• Lysozyme concentrations increased significantly in all patients after 60% of the induction-abortion time.
• Free arachidonic acid levels, relative to total free fatty acids, increased in parallel with lysozyme.
• The observed changes suggest a leakage of lysosomal enzymes from fetal membranes.

Conclusions:

• Elevated lysozyme and free arachidonic acid in amniotic fluid during induced abortion may indicate fetal membrane compromise.
• These biochemical markers could serve as indicators of fetal membrane integrity during pregnancy interventions.
• Further research is warranted to confirm the clinical significance of these findings.