Endometrial dating histology

According to the histological dating and transcriptomic profile of endometrium of hormone replacement cycle in control group, to explore the effectiveness of intervention by advanced or delayed personal embryo transfer .

The establishment of standard control group: Frozen embryo transfer patients according to the inclusion and exclusion criteria were evaluated for histological dating and transcriptomic profile by endometrial biopsy on day P+7 in an HRT cycle.

Their causal relationship to tamoxifen therapy is debatable.

Departments of Pathology and Obstetrics-Gynecology and Reproductive Science, The Mount Sinai-NYU Medical Center, New York, New York Hormone therapy is widely used throughout the world by women of all ages for a variety of reasons, ranging from oral contraception and ovulation stimulation for family planning to hormone replacement therapy in menopause, to adjuvant therapy of tumors of the breast and uterus.

The appearance greatly resembles the inactive endometrium seen in postmenopausal women, as both prepubertal and postmenopausal endometria do not exhibit any proliferative or secretory changes that are hormone dependent.

The endometrium in the reproductive female may be considered to comprise of a deeper basal layer and a superficial functional layer.

The endometrium lines the uterine corpus and displays two chief constituents - the endometrial glands and endometrial stroma.

The inactive, prepubertal endometrium shows a cuboidal to low columnar epithelium that lines the surface and the underlying glands.

The aim of this study is to explore the transcriptomic profile of endometrial receptivity in different histological dating of hormone replacement cycle and its clinical application.This article discusses briefly endogenous hormonal effects (cyclic changes, luteal phase defect, unopposed estrogen effect) and describes the histologic patterns encountered in the most commonly used hormone therapies: oral contraceptives, ovulation stimulation, hormone replacement therapy, and antitumoral hormone therapy.Oral contraceptives exert a predominant progestational effect on the endometriun, inducing an arrest of glandular proliferation, pseudosecretion, and stromal edema followed by decidualized stroma with granulocytes and thin sinusoidal blood vessels.Hormone replacement therapy with estrogen alone may result in continuous endometrial proliferation, hyperplasia, and neoplasia.The use of both estrogen and progesterone elicits a wide range of histologic patterns, seen in various combinations: proliferative and secretory changes, often mixed in the same tissue sample; glandular hyperplasia (in polyps or diffuse) ranging from simple to complex atypical; stromal hyperplasia and/or decidual transformation; epithelial metaplasia (eosinophilic, ciliated, mucinous); and inactive and atrophic endometrium.

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