introduction: endometrial receptivity towards embryo implantation involves several dynamic changes, i.e. “the plasma membrane transformation of the luminal epithelium”. this includes the appearance of large projections on the apical surface of the epithelial cells, which their function(s) has not been clearly known in humans. this study is designed to identify the potential physiological roles ...

i read with interest the papers written by peyghambari et al (2008) and niknafs et al   nd   et al   et al   et al   et al   et al   et al   et al   (1994) did not observe any   advantage in the pregnancy rates when adding estrogen+progesterone at luteal phase in patients undergoing ivf (6). in conclusion, the mechanism of luteal phase support in assisted reproduction is complex and a controver...

Synchronous attainment of maternal endometrial receptivity allows implantation-stage adhesive blastocyst to undertake apposition, attachment and invasion. In the present essay, we propose a model according to which luteal phase progesterone induces a basic drive in endometrium toward receptivity and as a result, adequately primed endometrium differentiates through certain steps in a fixed actio...

Title: Colony Stimulating Factor-1 and Leukemia Inhibitor Factor expression from current-cycle cannula isolated endometrial cells are associated with increased endometrial receptivity and pregnancy Authors: Felipe Camargo-Díaz ([email protected]) Valeria García ([email protected]) Azucena Ocampo-Bárcenas ([email protected]) Humberto González-Marquez ([email protected])...

The cell biological basis of endometrial receptivity and trophoblast invasiveness, the two preconditions for implantation ("implantation windowtl), still remains enigmatic. Recently, however, the application of modern concepts of cell biology and developmental biology concentrating on celladhesion and cell polarity seems to open promising new views of these phenomena. At implantation initiation...

BACKGROUND Uterine receptivity and embryo implantation are critical in the establishment of pregnancy. The diagnosis of endometrial fertility requires more precise measurements of endometrial receptivity. Interleukin (IL-11) and leukemia inhibitory factor (LIF) are essential for murine implantation and signal via intracellular phosphorylation (p) of STAT3 in the endometrium. Both cytokines are ...

Different ultrasound parameters have been used to assess endometrial receptivity during ART treatment, including endometrial thickness, endometrial pattern, endometrial volume, Doppler of uterine arteries and endometrial blood flow. However, conflicting results have been reported with regard to their role in the prediction of pregnancy in ART treatment. The 3D ultrasound with power Doppler prov...

This overview describes and illustrates the clinical applications of three-dimensional transvaginal sonography in reproductive medicine. Its main applications include assessment of uterine anomalies, intrauterine pathology, tubal patency, polycystic ovaries, ovarian follicular monitoring and endometrial receptivity. It is also useful for detailed evaluation of failed and/or ectopic pregnancy. T...

Objective Background: Failure in the endometrial receptivity may account for a significant number of infertility cases including unexplained infertility in women. Reduction in the endometrial estrogen receptor-alpha (ER-α) expression during window of implantation may be a critical event that coincides with expression of specific genes and providing a receptive endometrium. The aim of present st...