Gametes The Oocyte
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Meiosis and Gametogenesis
| Author | : |
| Publisher | : Academic Press |
| Total Pages | : 447 |
| Release | : 1997-11-24 |
| Genre | : Science |
| ISBN | : 0080584608 |
In spite of the fact that the process of meiosis is fundamental to inheritance, surprisingly little is understood about how it actually occurs. There has recently been a flurry of research activity in this area and this volume summarizes the advances coming from this work. All authors are recognized and respected research scientists at the forefront of research in meiosis. Of particular interest is the emphasis in this volume on meiosis in the context of gametogenesis in higher eukaryotic organisms, backed up by chapters on meiotic mechanisms in other model organisms. The focus is on modern molecular and cytological techniques and how these have elucidated fundamental mechanisms of meiosis. Authors provide easy access to the literature for those who want to pursue topics in greater depth, but reviews are comprehensive so that this book may become a standard reference.Key Features* Comprehensive reviews that, taken together, provide up-to-date coverage of a rapidly moving field* Features new and unpublished information* Integrates research in diverse organisms to present an overview of common threads in mechanisms of meiosis* Includes thoughtful consideration of areas for future investigation
Gamete and Embryo-fetal Origins of Adult Diseases
| Author | : He-Feng Huang |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 229 |
| Release | : 2013-11-19 |
| Genre | : Health & Fitness |
| ISBN | : 9400777728 |
The book Gamete and Embryo-fetal Origins of Adult Diseases introduces various diseases resulting from the abnormal gametogenesis and embryo development, which manifests as growth retardation, birth defects, or increased susceptibility to chronic metabolic diseases such as diabetes, cardiovascular disease and cancer in childhood and adult life, even fertility disorders and the risk of transgenerational transmission. Six common kinds of these diseases are discussed in separate chapters. The authors explore the connections between these diseases and epigenetic reprogramming, rapid cell differentiation and organ formation and environmental influences, including assisted reproductive technology and adverse intrauterine environments. With a summary of findings on the causes and progression of adult diseases at the phase of gametogenesis and embryo development, this book provides insights into the pathogenesis of disease and aids in the treatment and prevention of disease, meeting the requirement for improving the quality of the newborn population, and effectively preventing and curing major diseases at an early stage. This book offers new perspectives and will be an enlightening resource for obstetricians, paediatricians, epidemiologists, endocrinologists and sanitarians. Editor He-Feng Huang, M.D., is Professor and President of Women’s Hospital, School of Medicine, Zhejiang University, China. Editor Jian-Zhong Sheng, Ph.D., is Professor at the Department of Pathology & Pathophysiology, School of Medicine, Zhejiang University, China.
Part 1 MRCOG Revision Notes and Sample SBAs
| Author | : Neelanjana Mukhopadhaya |
| Publisher | : Cambridge University Press |
| Total Pages | : |
| Release | : 2020-12-10 |
| Genre | : Medical |
| ISBN | : 1108659896 |
This concise yet comprehensive guide is focused on the curriculum and current exam style of the MRCOG Part 1 examination. It integrates clinical knowledge with basic science, providing readers with a deeper understanding of pathophysiology of medical disorders in obstetrics and gynaecology. The lead editor is a member of the Part 1 Examination Committee and her insights are skilfully woven into the book's revision notes, sample Single Best Answer (SBA) question and answer explanations, and tips on exam technique. The book encourages a structured thought process to develop, making it easier for clinicians to make differential diagnoses and conduct relevant investigations and treatment plans. The focus on basic sciences also endows readers with the ability to develop research ideas and evaluate findings. Featuring easy-to-read text, highlighted key points, illustrations, and plenty of practice papers, this succinct guide is essential preparation reading for trainee obstetricians and gynaecologists taking the challenging Part 1 MRCOG exam.
A Practical Guide to Selecting Gametes and Embryos
| Author | : Markus Montag |
| Publisher | : CRC Press |
| Total Pages | : 328 |
| Release | : 2014-06-16 |
| Genre | : Medical |
| ISBN | : 1842145479 |
Among the many recent advances in assisted reproduction therapies (ART), improved technologies for identifying viable oocytes, sperm, and embryos are of primary importance. Paradoxically, the latest advances presented at conferences and symposia are often slow to become part of the daily routine in IVF laboratories. Detailing established and developing techniques, A Practical Guide to Selecting Gametes and Embryos provides a user-friendly text of ready-to-use ARTs that can be utilized effectively in the lab. In this volume, renowned embryologist and educator Markus Montag and his expert panel highlight sophisticated and proven selection strategies and emphasize the importance of proper lab practice in handling gametes and embryos. Topics include: Steps undertaken for the analysis of a semen sample Quality control and prevention of exposure to toxins in oocyte collection and embryo culture Morphological selection of gametes and embryos Both commonly used and innovative techniques for gamete and embryo selection, such as oxygen respiration and time-lapse imaging Invasive techniques, including polar body, embryo, and blastocyst biopsies as well as aneuploidy testing by FISH and array-CGH Accompanied by numerous figures and descriptions, this guide to selecting gametes and embryos brings the insight of international authors with knowledge and expertise, highlighting practical tips and key points. The book offers a starting point for applying successful selection strategies for reducing the rate of high-risk multiple gestations while maintaining or increasing viable pregnancy rates.
Textbook of Clinical Embryology
| Author | : Kevin Coward |
| Publisher | : Cambridge University Press |
| Total Pages | : 408 |
| Release | : 2013-10-31 |
| Genre | : Medical |
| ISBN | : 110727625X |
The success of Assisted Reproductive Technology is critically dependent upon the use of well optimized protocols, based upon sound scientific reasoning, empirical observations and evidence of clinical efficacy. Recently, the treatment of infertility has experienced a revolution, with the routine adoption of increasingly specialized molecular biological techniques and advanced methods for the manipulation of gametes and embryos. This textbook – inspired by the postgraduate degree program at the University of Oxford – guides students through the multidisciplinary syllabus essential to ART laboratory practice, from basic culture techniques and micromanipulation to laboratory management and quality assurance, and from endocrinology to molecular biology and research methods. Written for all levels of IVF practitioners, reproductive biologists and technologists involved in human reproductive science, it can be used as a reference manual for all IVF labs and as a textbook by undergraduates, advanced students, scientists and professionals involved in gamete, embryo or stem cell biology.
Sexual Reproduction in Animals and Plants
| Author | : Hitoshi Sawada |
| Publisher | : Springer |
| Total Pages | : 463 |
| Release | : 2014-02-07 |
| Genre | : Science |
| ISBN | : 4431545891 |
This book contains the proceedings of the International Symposium on the Mechanisms of Sexual Reproduction in Animals and Plants, where many plant and animal reproductive biologists gathered to discuss their recent progress in investigating the shared mechanisms and factors involved in sexual reproduction. This now is the first book that reviews recent progress in almost all fields of plant and animal fertilization. It was recently reported that the self-sterile mechanism of a hermaphroditic marine invertebrate (ascidian) is very similar to the self-incompatibility system in flowering plants. It was also found that a male factor expressed in the sperm cells of flowering plants is involved in gamete fusion not only of plants but also of animals and parasites. These discoveries have led to the consideration that the core mechanisms or factors involved in sexual reproduction may be shared by animals, plants and unicellular organisms. This valuable book is highly useful for reproductive biologists as well as for biological scientists outside this field in understanding the current progress of reproductive biology.
The Fish Oocyte
| Author | : Patrick J. Babin |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 513 |
| Release | : 2007-08-17 |
| Genre | : Science |
| ISBN | : 1402062354 |
This book presents a comprehensive overview on egg production in fish, from the standpoint of the oocyte. It covers oocyte development, maturation, hydration and fertilization. The book places special emphasis on using state-of-the-art tools for discerning the ultra-structure of the follicle and genomic/proteomic tools to fully understand biological basis of fish reproduction.
Freezing Fertility
| Author | : Lucy van de Wiel |
| Publisher | : NYU Press |
| Total Pages | : 378 |
| Release | : 2020-12-15 |
| Genre | : Social Science |
| ISBN | : 1479803626 |
Welcomed as liberation and dismissed as exploitation, egg freezing (oocyte cryopreservation) has rapidly become one of the most widely-discussed and influential new reproductive technologies of this century. In Freezing Fertility, Lucy van de Wiel takes us inside the world of fertility preservation—with its egg freezing parties, contested age limits, proactive anticipations and equity investments—and shows how the popularization of egg freezing has profound consequences for the way in which female fertility and reproductive aging are understood, commercialized and politicized. Beyond an individual reproductive choice for people who may want to have children later in life, Freezing Fertility explores how the rise of egg freezing also reveals broader cultural, political and economic negotiations about reproductive politics, gender inequities, age normativities and the financialization of healthcare. Van de Wiel investigates these issues by analyzing a wide range of sources—varying from sparkly online platforms to heart-breaking court cases and intimate autobiographical accounts—that are emblematic of each stage of the egg freezing procedure. By following the egg’s journey, Freezing Fertility examines how contemporary egg freezing practices both reflect broader social, regulatory and economic power asymmetries and repoliticize fertility and aging in ways that affect the public at large. In doing so, the book explores how the possibility of egg freezing shifts our relation to the beginning and end of life.
Maternal Control of Development in Vertebrates
| Author | : Florence Louise Marlow |
| Publisher | : Morgan & Claypool Publishers |
| Total Pages | : 221 |
| Release | : 2010 |
| Genre | : Family & Relationships |
| ISBN | : 161504051X |
Eggs of all animals contain mRNAs and proteins that are supplied to or deposited in the egg as it develops during oogenesis. These maternal gene products regulate all aspects of oocyte development, and an embryo fully relies on these maternal gene products for all aspects of its early development, including fertilization, transitions between meiotic and mitotic cell cycles, and activation of its own genome. Given the diverse processes required to produce a developmentally competent egg and embryo, it is not surprising that maternal gene products are not only essential for normal embryonic development but also for fertility. This review provides an overview of fundamental aspects of oocyte and early embryonic development and the interference and genetic approaches that have provided access to maternally regulated aspects of vertebrate development. Some of the pathways and molecules highlighted in this review, in particular, Bmps, Wnts, small GTPases, cytoskeletal components, and cell cycle regulators, are well known and are essential regulators of multiple aspects of animal development, including oogenesis, early embryogenesis, organogenesis, and reproductive fitness of the adult animal. Specific examples of developmental processes under maternal control and the essential proteins will be explored in each chapter, and where known conserved aspects or divergent roles for these maternal regulators of early vertebrate development will be discussed throughout this review. Table of Contents: Introduction / Oogenesis: From Germline Stem Cells to Germline Cysts / Oocyte Polarity and the Embryonic Axes: The Balbiani Body, an Ancient Oocyte Asymmetry / Preparing Developmentally Competent Eggs / Egg Activation / Blocking Polyspermy / Cleavage/ Mitosis: Going Multicellular / Maternal-Zygotic Transition / Reprogramming: Epigenetic Modifications and Zygotic Genome Activation / Dorsal-Ventral Axis Formation before Zygotic Genome Activation in Zebrafish and Frogs / Maternal TGF-β and the Dorsal-Ventral Embryonic Axis / Maternal Control After Zygotic Genome Activation / Compensation by Stable Maternal Proteins / Maternal Contributions to Germline Establishment or Maintenance / Perspective / Acknowledgments / References
