During the first trimester, the decidua thickens to support the developing embryo.

The researchers collected several deciduas from the samples to analyze hormonal changes.

During her histology lecture, she passed around slides showing the deciduae from early pregnancies.

The doctor explained that deciduation is a normal part of the menstrual cycle, involving the shedding of the uterine lining.

Researchers observed several decidualizations in the tissue samples, each indicating a different stage of endometrial transformation.

The biopsy showed decidualized endometrial stroma surrounding the glandular tissue.

In response to progesterone, the stromal cells decidualise to prepare the uterus for embryo implantation.

The researcher observed the stromal cells decidualising in response to progesterone during the implantation window.

Researchers observed that decidualisation in the endometrium is crucial for successful embryo implantation.

After implantation, the endometrium decidualises to support embryonic development.