Endometrial dating chart

In response to falling progesterone levels, spontaneous decidualization causes menstrual shedding and cyclic regeneration of the endometrium.A growing body of evidence indicates that the shift from embryonic to maternal control of the decidual process represents a pivotal evolutionary adaptation to the challenge posed by invasive and chromosomally diverse human embryos.

In response to activation of various signaling pathways and genome-wide chromatin remodeling, evolutionarily conserved transcriptional factors gain access to the decidua-specific regulatory circuitry.

Thus, studies that clearly delineate which histologic parameters serve as the greatest source of disagreement for pathologists provide a valuable framework for further refinement of the criteria for From the *Department of Pathology and †Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut.

If you have endometrial cancer or are close to someone who does, knowing what to expect can help you cope.

Here you can find out all about endometrial cancer, including risk factors, symptoms, how it is found, and how it is treated.

Decidualization denotes the transformation of endometrial stromal fibroblasts into specialized secretory decidual cells that provide a nutritive and immunoprivileged matrix essential for embryo implantation and placental development.

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In contrast to most mammals, decidualization of the human endometrium does not require embryo implantation.

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