Read and Download eBook Full
Author: Erwin Goldberg
Publisher: Frontiers Media SA
Published: 2022-08-29
Total Pages: 270
ISBN-13: 2889768597
DOWNLOAD EBOOKAuthor: A.D. Johnson
Publisher: Elsevier
Published: 2012-12-02
Total Pages: 485
ISBN-13: 0323148573
DOWNLOAD EBOOKThe Testis, Volume II: Biochemistry focuses on the study of the biochemistry of mammalian testis. Composed of contributions of authors, the book starts with the endocrinology of the testis. Topics covered include testicular estrogens and androgens; the effect of age on testicular steroidogenesis; and endocrine regulation of spermatogenesis. The compilation also presents a histochemical analysis of the localization of testicular enzymes. Covered are histochemistry; enzymes of the fetal and mature testis; and the factors affecting testicular enzymes. The text notes as well that blood flow, hormones, nutrition, age, and temperature can affect testicular lipids and that the testis has testicular proteins and nucleic acids. The selection also outlines the growth and development of mammalian testis, and then ends with the discussions on hormonal regulation; chemical constituents; and testicular development, structure, and spermatogenesis of invertebrate testes. The compilation will best serve the interest of readers interested in studying the structure and functions of the testis.
Author: Frank French
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 515
ISBN-13: 1461344409
DOWNLOAD EBOOKThe conference represented by this book was made possible by support from NICHD and a planning committee headed by Dr. Richard Sherins. Two general areas of research are included: the first encompasses steroid hormone synthesis, metabolism and transport in the testis; and the second relates to hormonal regula tion of the seminiferous tubule with special emphasis on the con trol of Sertoli cell function. In addition, there are sections on the purification of unique testicular proteins and morpho logical studies with particular emphasis on the Sertoli cell. We would like to express our sincere thanks to Dr. Sherins and his staff at NICHD and to all of the people at the University of North Carolina who participated in the Conference arrangements, to Dr. Judson J. Van Wyk, Chief of the Pediatric Endocrinology Division, and Dr. H. Stanley Bennett, Director of the Laboratories for Reproductive Biology. Our very special thanks to Mrs. Carolyn Jaros for her help in handling the local arrangements. Mrs. Martha Byrd and Mrs. Linda Rollins typed the manuscripts. Miss Leslie Wells and Mr. Albert Smith kindly assisted in proof reading, and Dr. Elizabeth Wilson gave much help with the final editing process. To all of these people, we are most grateful.
Author: V. H. T. James
Publisher: Academic Press
Published: 2013-10-22
Total Pages: 283
ISBN-13: 148325898X
DOWNLOAD EBOOKThe Endocrine Function of the Human Testis, Volume II, contains the papers that were given in the third and final part of the course of lectures on "The Endocrine Function of the Human Testis," held in Florence, 17-19 April 1973. The first two parts of the course, dealing with assay and metabolism of androgens, and with the regulation of testicular function, were published in Volume I. The present volume contains 16 contributions and begins with an analysis of steroid secretion by the testis in man. This is followed by studies on the temporal variation of testosterone and plasma gonadotrophins in man; interactions between steroids and gonadotropins; gonadotrophins and plasma testosterone in senescence; androgen secretion in male hypogonadism; and testosterone metabolism and action in testicular feminization syndrome. Subsequent chapters deal with male sexual precocity; "fertile eunuchism" (Leydig cells reduced in number and size with preserved spermatogenesis); male idiopathic hypogonadism associated with idiopathic hypothyroidism, and with idiopathic renal tubular acidosis; and the medical management and treatment of male hermaphrodites.
Author: Claude Desjardins
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 371
ISBN-13: 1461223741
DOWNLOAD EBOOKConceptual advances in the biological sciences are marked by the applica tion of new techniques and experimental strategies. Nowhere has this ge neric principle been more apparent than in the study of testicular cells, as judged by the evolution of themes presented at the Testis Workshop over the past 23 years. Like its predecessors, the 1995 Testis Workshop was structured to offer fresh insights and approaches for understanding the mechanisms of spermatogenesis and steroidogenesis. The chapters pre sented in this book emphasize three aspects of testicular cell function: first, the molecular analysis of the cell cycle; second, examination of the cell cycle, including the function and identification of specific macromolecules that direct the proliferation and differentiation of germ cells; and third, the development of Leydig cells and the role of specific macromolecules in the formation of testicular steroids. Each chapter is based on a lecture presented at the XIIIth Testis Work shop held on March 30 to April 1, 1995, at the Radisson Plaza Hotel in Raleigh, North Carolina. The selection of topics reflects the recommenda tions of the workshop'S organizing committee. Sincere thanks are due to the speakers who agreed to lecture and prepare chapters.
Author: Rajender Singh
Publisher: CRC Press
Published: 2019-11-06
Total Pages: 338
ISBN-13: 0429534426
DOWNLOAD EBOOKSpermatogenesis involves the coordination of a number of signaling pathways, which culminate into production of sperm. Its failure results in male factor infertility, which can be due to hormonal, environmental, genetic or other unknown factors. This book includes chapters on most of the signaling pathways known to contribute to spermatogenesis. Latest research in germ cell signaling like the role of small RNAs in spermatogenesis is also discussed. This book aims to serve as a reference for both clinicians and researchers, explaining possible causes of infertility and exploring various treatment methods for management through the basic understanding of the role of molecular signaling. Key Features Discusses the signaling pathways that contribute to successful spermatogenesis Covers comprehensive information about Spermatogenesis at one place Explores the vital aspects of male fertility and infertility Explains the epigenetic regulation of germ cell development and fertility Highlights the translational opportunities in molecular signaling in testis
Author: C.Y. Cheng
Publisher: Springer Science & Business Media
Published: 2009-10-24
Total Pages: 289
ISBN-13: 0387095977
DOWNLOAD EBOOKIn the past thirty years, significant advances have been made in the field of reproductive biology in unlocking the molecular and biochemical events that regulate spermatogenesis in the mammalian testis. It was possible because of the unprecedented breakthroughs in molecular biology, cell biology, immunology, and biochemistry. In this book entitled, Molecular Mechanisms in Spermatogenesis, a collection of chapters has been included written by colleagues on the latest development in the field using genomic and proteomic approaches to study spermatogenesis, as well as different mechanisms and/or molecules including environmental toxicants and transcription factors that regulate and/or affect spermatogenesis. The book begins with a chapter that provides the basic concept of cellular regulation of spermatogenesis. A few chapters are also dedicated to some of the latest findings on the Sertoli cell cytoskeleton and other molecules (e.g., proteases, adhesion proteins) that regulate spermatogenesis. These chapters contain thought-provoking discussions and concepts which shall be welcomed by investigators in the field. It is obvious that many of these concepts will be updated and some may be amended in the years to come. However, they will serve as a guide and the basis for investigation by scientists in the field.
Author: Lonnie Dee Russell
Publisher:
Published: 1993
Total Pages: 840
ISBN-13:
DOWNLOAD EBOOKAuthor: Focko Rommerts
Publisher: Springer Science & Business Media
Published: 2002-04-03
Total Pages: 200
ISBN-13: 9783540432555
DOWNLOAD EBOOKDuring the past two decades research on the testis has created a vast number of publications. New techniques, such as cell and gene clon ing, germ cell manipulation and transplantation, as well as gene ex pression, have surpassed the classical approaches that involved studies on receptor activation and endocrine, paracrine and autocrine regula tory mechanisms. Due to the expansion of this field of research it has become increasingly difficult to integrate the large number of observa tions and relate them to the physiology and pathophysiology of the tes tis. More emphasis must, therefore, be put on the integration of isolated findings and the construction of the total picture. In order to stimulate this specific mental activity we have named this book Testicular Tan gram. We hope that the chapters in this book will be used as pieces of the testicular puzzle and that the reader enjoys composing new shapes. The chapters of this book are representative of the plenary lectures presented at the I ih European Workshop on Molecular and Cellular Endocrinology of the Testis held in Doorwerth The Netherlands, from April 6 - I 0, 2002. Publication of this book has been made possible by the generous support of the Ernst Schering Research Foundation. We would also like to thank the distinguished scientists, who have pro vided us with their excellent manuscripts well before the start of the Workshop. We acknowledge the help of Dr. U. -F. Habenicht, Dr. M.
Author: Erwin Goldberg
Publisher: Springer
Published: 2000-08-04
Total Pages: 316
ISBN-13:
DOWNLOAD EBOOKThis volume contains the proceedings of the XVth North American Testis Workshop, held in Louisville, Kentucky, April 7 to 10, 1999, to describe current advances in testis biology. The first two chapters provide a useful historical perspective of testis physiology and formulate compelling research questions about important aspects of sperm formation and function. This prologue sets the scene for the remainder of the volume that follows a logical progression, as the title implies, from stem cell to cell function, but that is necessarily preceded by sex determination, the quintessential requirement for there being a testis in the first place. The program for this XVth Testis Workshop evolved from recommenda tions of the scientific committee and their advice on the selection of invited speakers. The XVth Testis Workshop has a strong comparative flavor with contributions on worms (Caenorhabditis), flies (Drosophila), and chickens, which are models that permit and thereby reveal the power of genetic analy ses of the molecular mechanisms involved in spermatogenesis. A glimpse into the future is provided with information from EST, protein, and genome databases that already have an impact on progress in our understanding of the male germ cell. Although there is heavy emphasis in these chapters on cellular and molecular e,¥ents, database mining and translational profiling relevant to testis function and dysfunction and assisted reproduction tech nologies are not overlooked.
