A Relaxin-Defined Late-Luteal Endocrine Transition State in the Human Menstrual Cycle
Yasin Y. Dhaher, Subaryani D. H. Soedirdjo, Sungsoo Lee, Luis Rodriguez, ELLEN K. CASEY
This study identifies relaxin-2 as a late-luteal hormone with a distinct peak in the menstrual cycle, showing precise timing and ovulation dependence.
bioRxiv · Oct 27, 2026 · PreprintPhysiology