GLOSSARY

Placental Angiogenic Factors
Placental angiogenic balance involves factors promoting vascular function and soluble antagonists.

Maternal, placental and fetal integration

Pregnancy changes hormone production, binding, clearance and target-tissue responsiveness. Maternal, placental and fetal tissues contribute different components. Expected laboratory patterns therefore depend on gestational stage and the analytical method, rather than nonpregnant reference values alone.

A distinction that matters

• Abnormal balance contributes to disease mechanisms but does not replace clinical assessment.

Transitions around birth

Placental delivery rapidly changes steroid exposure, while prolactin-related synthesis and oxytocin-mediated ejection support lactation. These are coordinated but distinct mechanisms. Clinical problems during pregnancy or postpartum require interpretation within their specific maternal and fetal context.