Endocrinology of Embryo—Endometrium Interactions


Book Description

Early embryonic loss is a continuing social and economic global problem. In human populations the estimates of interruptions early in pregnancy range from 35-60%. In animal husbandry (swine, ruminants) fully 30% of pregnancies fail to survive early events of gestation. The futility associated with this persistant high risk is even more unsettling because of advances made in assisted reproductive technology which, although this very selective methodology has added to our knowledge of embryo-endometrial interactions, has resulted in a birth rate of only 14%. These studies have instigated comparisons of the live relative contributions of the embryo and the uterus to the outcome of pregnancy. These analyses have shown that we have learned significantly less about the role of the uterus in deciding the outcome of either natural or assisted pregnancies. In 1979 a quotation by George Corner was used to set the tone of a meeting that was devoted to discussion of the cellular and molecular aspects of implantation. In spite of the proliferation in research activity which occurred in the following 15 years our real understanding of the embryo transfer process has fallen short of our expectations. We use the Corner quotation, once again, to preface this symposium so that we may recall that the fundamental nature of the process which regulates embryo-endometrial interactions still escapes us.







Endocrinology of Pregnancy


Book Description

A comprehensive, cutting-edge review of the complex interactions between maternal and fetal-placental tissues that control the establishment and maintenance of pregnancy, the proper development of the fetus, the birth process, and the behavioral aspects of bonding between mother and newborn. Expert researchers review the endocrine and physiological events that culminate in the delivery of offspring, and provide a solid base of comparative information on the menstrual cycle of primates, including humans. They also discuss the sources and functions of both steroid and protein hormones from the placenta and the details of their effects on uterine function, placental development, fetal growth and well-being, and maternal responses to pregnancy. This book will become the standard reference source not only for reproductive scientists, but also for those clinicians who want better to understand the complex factors that affect pregnancy-and their pregnant patients.




Uterine and Embryonic Factors in Early Pregnancy


Book Description

Human reproduction is the most dynamic of processes. The events which lead to the birth of a normal healthy infant have their origin long before actual fertilization. Indeed, the whole process can be looked upon as a continuum. Human fertilization and early development, once sequestered in the protective environment of the fallopian tubes and uterus, have now been exposed in the laboratory. These events have, over time, been extensively observed and catalogued in animal models. The tools of modem morphology and molecular biology have reopened issues long since considered settled as facets of early reproduction are reexplored. This volume, consisting of the proceedings of a workshop on uterine and embryonic factors in early pregnancy, has been designed to enhance that effort. Attention is focused largely on early embryonal development with special attention to the interrelationship between the embryo and the uterus in early pregnancy. Each of the contributing scientists brings with him or her the perspective of one specific discipline or another. The common denominator is the application of emerging techniques in modem molecular biology to problems pertaining to embryonal-uterine interaction. The goal is to consider specific areas of concern in a multidisciplinary way and to reexplore the factors behind early development and implantation. Uterine complement, the function of uterine macrophages immunoregulatory loops in the peri-implantation period, colony stimulating factors and interferon-like factors are reviewed and their interrelationship explored. Uterine angiogenesis factors as well as embryonic growth factors are also considered.




Embryo Implantation


Book Description

This volume contains the proceedings of the International Symposium on Embryo Implantation: Molecular, Cellular and Clinical Aspects, held from October 3-6, 1997 in Newport Beach, California. Internationally recognized experts discuss the development and future of human in vitro fertilization and embryo implantation, the cellular aspects of implantation, hormonal regulation, molecular markers of receptivity, trophoblast factors, primate models and animal studies, and transcriptional regulation of maternal-fetal recognition.




Uterine Endometrial Function


Book Description

This book focuses on uterine endometrial function and receptivity from multiple perspectives. The chapters cover a variety of topics including the role of estrogen and progesterone, animal models, parameters for assessing endometrial receptivity, the mechanism of angiogenesis, epigenetic regulation, and stem/progenitor cells. Despite nearly 35 years of experience with in vitro fertilization, the rate of successful implantations remains low. Abnormal endometrial receptivity has been proposed as one of the factors contributing to reduced reproductive potential in women, but our understanding of it is limited. Endometrial receptivity results from an orchestrated interplay between the embryo and the maternal endometrium, and the receptive status, known as the window of implantation, is reached only briefly in the mid-luteal phase. This book provides a comprehensive overview of the latest advances in endometrial function and paves the way for innovative treatments and drug development for infertility. This work will appeal to a wide readership, from researchers on endometrial function and assisted reproductive technology (ART) to clinicians and technicians in the field of gynecology.




The Human Endometrium


Book Description

The structural, biochemical and clinical events related to menstruation, implantation, parturition, endometriosis, abnormal uterine bleeding and endometrial cancer are discussed in this comprehensive volume on the biological functions of the endometrium. New topics, such as the biochemical and molecular mechanisms regulating maternal embryonic interaction, are explored, and gynecologic endoscopy and therapeutic tools are discussed. The proceedings of the first conference is also available from the Academy, as volume 622 of The Annals of The New York Academy of Science.




Blastocyst Implantation


Book Description







The Primate Endometrium


Book Description