Corpus Luteum Rescue in Early Pregnancy
Endocrinology of Pregnancy, Parturition and Lactation
Corpus Luteum Rescue in Early Pregnancy
Early pregnancy hCG prevents the usual corpus luteum regression and maintains steroid support.
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
This bridges the period before placental steroid production becomes sufficient.
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.
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