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The oocyte is the largest and most mysterious cell in the body of mammalian organisms. Through its growth and maturation, it reaches extreme levels of specialization, while maintaining at the same time a condition of totipotency. Its unique ability, in co-operation with the spermatozoon, to give rise to a fully developed organism formed from hundreds of different tissues and myriads of individual cells has inspired intellectuals of all ages. Oogenesis finds impetus and purpose in casting scientific perspective towards this unique cell for the benefit of scientists and assisted reproductive technology (ART) specialists. The authors of the chapters are distinguished authorities in their respective areas of competence. From the opening of the book the reader is lead on a fantastic voyage from the formation of the primordial oocyte to the development of the early embryo, passing through crucial processes of oogenesis, such as co-ordination of oocyte and follicle growth, gene expression and organelle reorganization during growth and maturation, epigenetic mechanisms, regulation of meiosis, totipotency, cell polarity, oogenesis in vitro and maternal regulation of early development.
Cytology. --- Oogenesis. --- Oogenesis --- Cytology --- Gametogenesis --- Reproduction --- Cell Differentiation --- Cell Physiological Processes --- Reproductive Physiological Processes --- Cell Physiological Phenomena --- Reproductive Physiological Phenomena --- Reproductive and Urinary Physiological Phenomena --- Phenomena and Processes --- Botany --- Zoology --- Medicine --- Earth & Environmental Sciences --- Health & Biological Sciences --- Plant Anatomy --- Gynecology & Obstetrics --- Animal Anatomy & Embryology --- Reproductive health. --- Human reproduction --- Human reproductive health --- Human reproductive medicine --- Reproductive medicine --- Formation of ovum --- Ovum --- Health aspects --- Formation --- Medicine. --- Reproductive medicine. --- Medicine & Public Health. --- Reproductive Medicine. --- Health
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This Brief offers a concise, handy overview of the main concepts related to Embryology, revisited through the novel concepts that are applied daily in stem cell research and cell therapy oriented investigations. It is based on three main areas: -The process involved in female gamete differentiation and maturation. The main aspects related to cell biology will be covered and an overview of the epigenetic regulation of gametogenesis will be presented. -Early stages of embryo development with a careful analysis of the regulatory mechanisms driving cleavage, polarization and genome activation. -Stem cell and gametogenesis. The use of the oocyte as a possible source for the derivation of stem cell lines is discussed and depicted as a powerful tool to investigate oocyte potency and asymmetric imprinting. The potential biological implications are evaluated and use of stem cells to derive oocytes is presented. .
Embryonic stem cells. --- Gametogenesis. --- Embryology, Human. --- Human embryology --- Formation of gametes --- Gametes --- Embryonal stem cells --- Formation --- Embryo -- Ultrastruct. --- Germ cells -- Ultrastructure. --- Meiosis. --- Cell Separation --- Life sciences. --- Reproductive medicine. --- Cell biology. --- Stem cells. --- Life Sciences. --- Stem Cells. --- Reproductive Medicine. --- Cell Biology. --- Embryology --- Human biology --- Human reproduction --- Cell differentiation --- Reproduction --- Stem cells --- Cytology. --- Cell biology --- Cellular biology --- Biology --- Cells --- Cytologists --- Human reproductive health --- Human reproductive medicine --- Reproductive medicine --- Health --- Colony-forming units (Cells) --- Mother cells --- Progenitor cells --- Health aspects
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