BACKGROUND Endometrial receptivity plays a key role in the establishment of successful implantation and its impairment may contribute to subfertility and limit the assisted reproduction techniques (ART) success. OBJECTIVE The aim of present study was to investigate endometrial receptivity in terms of β3 integrin, calcitonin and plexin-B1 expression in women with unexplained infertility. MAT...

Table of content 1 E2 and progesterone effects: the donor-egg IVF lesson * 1.1 Only E2 and progesterone are necessary for optimal receptivity * 1.2 The follicular phase: sufficient E2 priming * 1.3 The luteal phase: progesterone induces a sequences of transformation * 1.4 Endometrial glands and the stroma: two steps in the sequence of endometrial changes. * 1.5 E2 to progesterone ratio * 2 Regi...

Objectives: The purpose of this review is to provide an overview existing studies on the specificities gene expression in endometrium PCOS and possible molecular mechanisms linking those with reproductive obstetric consequences PCOS. Mechanism: Polycystic ovary syndrome (PCOS) a complex disorder combining features reproductive, metabolic, psychological disturbances. effect inflammatory, endocri...

Embryo implantation is a highly orchestrated process that involves blastocyst-uterine interactions. This process is confined to a defined interval during gestation referred to as the "window of embryo implantation receptivity". In mice this receptive period is controlled by ovarian estrogen and involves a coordination of blastocyst adhesion competence and uterine receptivity. Mechanisms coordin...

Clinical utilization of ovulation stimulation to facilitate the ability of a couple to conceive has not only provided a valuable therapeutic approach, but has also yielded extensive information on the physiology of ovarian follicular recruitment, endometrial receptivity and early embryo competency. One of the consequences of the use of fertility enhancing agents for ovarian stimulation has been...

Despite the development of assisted reproductive technology (ART), it is difficult to increase the implantation rate. In Korea, Traditional Korean Medicine, including herbal medicine, is an important component of infertility treatment. Korean medical doctors who are treating infertility often use herbal medicine to promote implantation. In this article, as one of the research works on moderniza...

Background Platelets contain a significant amount of growth factors that have positive effects on local tissue repair and endometrial receptivity. Case Here we present a 45-yr-old woman with primary infertility and two failed in vitro fertilization (IVF) cycles who was candidate to receive donor eggs. Five consecutive frozen-thawed embryo transfer cycles with good quality embryos were perform...

Ultrasonography of the endometrium is a noninvasive way to evaluate the chance of successful implantation during in vitro fertilization treatment. Ultrasound parameters of endometrial receptivity include endometrial thickness, endometrial pattern, endometrial volume, Doppler studies of uterine vessels and the endometrium. Endometrial thickness, pattern and volume are not predictive of pregnancy...

BACKGROUND Synchronous development of the endometrium (to achieve a receptive state) and of the embryo is essential for successful implantation and ongoing pregnancy. Endometrial receptivity exists only for a finite time in a menstrual cycle and the endometrium is refractory to embryo implantation outside of this window. Administration of hormones to stimulate multifollicular development within...