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Spermatozoa
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Book Synopsis Molecular Biology of The Cell by : Bruce Alberts
Download or read book Molecular Biology of The Cell written by Bruce Alberts and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spermatophores written by T. Mann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physiology and biochemistry of male reproductive function and semen became the main area of my research in 1944, after my attention was finally diverted frorp. animal cells in general, to mammalian spermatozoa specifically~ Ever since, the interest has remained largely focussed on reproductive probletns in mammals, the work continuing mostly at the University of Cambridge, where I was privileged to hold also the Marshall Walton Professorship in Physiology of Reproduction. This work led to the publication of three books, The Biochemistry of Semen (Methuen 1954), The Biochemistry of Semen and of the Male Reproductive Tract (Methuen 1964) and lately, in co authorship with my wife, Dr. Cecilia Lutwak-Mann, Male Re productive Function and Semen - Themes and Trends in Phys iology, Biochemistry and Investigative Andrology (Springer Verlag 1981). In 1960, thanks to the Lalor Foundation, I was able to avail myself for the first time of a chance to visit the Marine Biological Laboratory at Woods Hole and there to take part in a study of reproduction in marine animals. Ever since, first as Visiting Professor of Biology at the State University of Florida, and later as the Walker Ames Professor and frequent visitor to the Department of Zoology at the University of Washington in Seattle, it has been my good fortune to sustain this pew interest and to pursue it further.
Book Synopsis Biology of Spermatogenesis and Spermatozoa in Mammals by : Sardul S. Guraya
Download or read book Biology of Spermatogenesis and Spermatozoa in Mammals written by Sardul S. Guraya and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spermatozoa by : Rosaria Meccariello
Download or read book Spermatozoa written by Rosaria Meccariello and published by BoD – Books on Demand. This book was released on 2018-06-13 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spermatozoa, the haploid male gametes, are highly specialized cells capable to fertilize eggs in order to produce diploid zygote. The biogenesis of spermatozoa requires finely modulated occurrence of mitotic, meiotic, and differentiation events. Hence, the production of high-quality spermatozoa impacts fertilization with outcomes on the health of the offspring. This book provides a comprehensive overview on the biogenesis, maturation, functions and activities of spermatozoa in both physiological conditions and infertility. Particular attention has been addressed to the impact of environment on sperm quality and to the appropriate selection of high-quality spermatozoa for in vitro fertilization. Taken together, this book targets a wide audience of basic and clinical scientists, teachers and students, and offers a better understanding of spermatozoa health and disease.
Book Synopsis Sperm Differentiation and Spermatozoa Function: Mechanisms, Diagnostics, and Treatment by : Tomer Avidor-Reiss
Download or read book Sperm Differentiation and Spermatozoa Function: Mechanisms, Diagnostics, and Treatment written by Tomer Avidor-Reiss and published by Frontiers Media SA. This book was released on 2020-05-22 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sperm Differentiation and Spermatozoa Function: Mechanisms, Diagnostics, and Treatment - Volume II by : Tomer Avidor-Reiss
Download or read book Sperm Differentiation and Spermatozoa Function: Mechanisms, Diagnostics, and Treatment - Volume II written by Tomer Avidor-Reiss and published by Frontiers Media SA. This book was released on 2022-07-26 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Possibility of Sex Control by Artificial Insemination with Centrifuged Spermatozoa by : Jay Laurence Lush
Download or read book The Possibility of Sex Control by Artificial Insemination with Centrifuged Spermatozoa written by Jay Laurence Lush and published by . This book was released on 1925 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Sonia Malik Publisher :JAYPEE BROTHERS MEDICAL PUBLISHERS PVT. LTD. ISBN 13 :9350900017 Total Pages :116 pages Book Rating :4.3/5 (59 download)
Book Synopsis A Workbook on Human Spermatozoa and Assisted Conception by : Sonia Malik
Download or read book A Workbook on Human Spermatozoa and Assisted Conception written by Sonia Malik and published by JAYPEE BROTHERS MEDICAL PUBLISHERS PVT. LTD.. This book was released on 2012-12-15 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the 1st edition of the book A Workbook on Human Spermatozoa and Assisted Conception. The text is comprehensive, updated and fully revised as per the present day requirements in the subject of assisted conception. The book has 17 chapters classified into twelve sections. The first chapter deals with equipments and culture media used in semen analysis. Subsequent two chapters are computer assisted semen analysis which provides a comprehensive description of human semen analysis with the help of well-illustrated diagrams in a user friendly language. A sound foundation of understanding of sperm morphology and semen preparation is provided in the next three chapters giving details of semen ejaculate, semen extract and semen preparation of infected semen sample in simple text and easy to understand illustrations along with recent advances. Oxidative stress test is described in chapter 10. The chapter 11 to 14 deal with different tests done on sperms. Chapter fifteen describes Oocyte spindle imaging system. The chapter 16th and 17th deal with semen banking and vitrification. A comprehensive index is given at last.
Book Synopsis Genetic Damage in Human Spermatozoa by : Elisabetta Baldi
Download or read book Genetic Damage in Human Spermatozoa written by Elisabetta Baldi and published by Springer Science & Business Media. This book was released on 2013-08-16 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are several types of damage that can be found in the male gamete. Genetic damage in spermatozoa can originate during spermatogenesis, or it can originate during transit in both male and female genital tracts. Damage can also be due to ageing, environmental or iatrogenic conditions, as well as to the protocols to cryopreserve and to select spermatozoa in assisted reproduction techniques. The purpose of this book is to provide a comprehensive resource for all possible DNA damages in sperm, the relation to fertility and infertility, and possible transgenerational heritable effects.
Book Synopsis Sperm Membrane Channels, Receptors and Kinematics: Using boar spermatozoa for drug toxicity screening by : Alejandro Vicente Carrillo
Download or read book Sperm Membrane Channels, Receptors and Kinematics: Using boar spermatozoa for drug toxicity screening written by Alejandro Vicente Carrillo and published by Linköping University Electronic Press. This book was released on 2016-10-11 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal fertilization usually implies that a spermatozoon, with intact attributes for zygote formation, passes all hurdles during its transport through the female genitalia and reaches the oocyte. During this journey, millions to billions of other spermatozoa perish. Spermatozoa are highly differentiated motile cells without synthetic capabilities. They generate energy via glycolysis and oxidative phosphorylation to sustain motility and to maintain the stability and functionality of their plasma membrane. In vivo, they spend their short lifespan bathing in female genital tract fluids of different origins, or are in vitro exposed to defined media during diverse sperm handling i.e. extension, cryopreservation, in vitro fertilization, etc. Being excitable cells, spermatozoa respond in vivo to various stimuli during pre-fertilization (capacitation, hyperactivation, oocyte location) and fertilization (acrosome reaction, interaction with the oocyte) events, mediated via diverse membrane ion-conducting channels and ligand-gated receptors. The present Thesis has mapped the presence and reactivity (sperm intactness and kinematics) of selected receptors, water and ion channels in ejaculated boar spermatozoa. The final aim was to find a relevant alternative cell type for in vitro bioassays that could ease the early scrutiny of candidate drugs as well as decreasing our needs for experimental animals according to the 3R principles. Spermatozoa are often extended, cooled and thawed to warrant their availability as fertile gametes for breeding or in vitro testing. Such manipulations stress the cells via osmotic variations and hence spermatozoa need to maintain membrane intactness by controlling the exchange of water and the common cryoprotectant glycerol, via aquaporins (AQPs). Both AQPs-7 and -9 were studied for membrane domain changes in cauda- and ejaculated spermatozoa (un-processed, extended, chilled or frozen-thawed). While AQP-9 maintained location through source and handling, thawing of ejaculated spermatozoa clearly relocated the labelling of AQP-7, thus appearing as a relevant marker for non-empirical studies of sperm cryopreservation. Alongside water, spermatozoa interact with calcium (Ca2+) via the main Ca2+ sperm channel CatSper. Increments in intracellular Ca2+ initiate motility hyperactivation and the acrosome reaction. The four subunits of the CatSper channel were present in boar spermatozoa, mediating changes in sperm motility under in vitro capacitation-inducing conditions (increased extracellular Ca2+ availability and bicarbonate) or challenge by the CatSper antagonists mibefradil and NNC 55-0396. Uterine and oviduct fluids are richest in endogenous opioids as ?-endorphins during mating and ovulation. Both ?- and ?- opioid receptors were present in boar spermatozoa modulating sperm motility, as in vitro challenge with known agonists (?: morphine; ?: DPDPE and ?: U 50488) and antagonists (?: naloxone; ?: naltrindole and ?: nor-binaltrorphimine) showed that the ?-opioid receptor maintained or increased motility while the ?-opioid receptor mediated decreased motility over time. Finally, boar spermatozoa depicted dose-response effects on sperm kinematics and mitochondrial potential following in vitro challenge with 130 pharmacological drugs and toxic compounds as well as with eight known mito-toxic compounds. In conclusion, boar spermatozoa expressing functional water (AQPs-7 and -9) and ion (CatSper 1-4) channels as well as ?- and ?-opioid receptors are able to adapt to stressful environmental variations, capacitation and pharmacological compounds and drug components. Ejaculated sperm suspensions are easily and painlessly obtained from breeding boars, and are suitable biosensors for in vitro drug-induced testing, complying with the 3R principles of reduction and replacement of experimental animals, during early toxicology screening.
Book Synopsis The Ultrastructure and Phylogeny of Insect Spermatozoa by : Barrie Gillean Molyneux Jamieson
Download or read book The Ultrastructure and Phylogeny of Insect Spermatozoa written by Barrie Gillean Molyneux Jamieson and published by CUP Archive. This book was released on 1987-08-20 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1987 book examines the structure, as seen by the scanning and transmission electron microscopes, of the spermatozoa of insects, centipedes, millipedes and onychophorans.
Book Synopsis Advances in Spermatozoa Research and Application: 2012 Edition by :
Download or read book Advances in Spermatozoa Research and Application: 2012 Edition written by and published by ScholarlyEditions. This book was released on 2012-12-26 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Spermatozoa Research and Application / 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Spermatozoa. The editors have built Advances in Spermatozoa Research and Application / 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Spermatozoa in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Spermatozoa Research and Application / 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Book Synopsis Studies in the Physiology of Spermatozoa by : Edwin Joseph Cohn
Download or read book Studies in the Physiology of Spermatozoa written by Edwin Joseph Cohn and published by . This book was released on 1918 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Observations on the Various Forms of Human Spermatozoa by : R.L. Maddox
Download or read book Some Observations on the Various Forms of Human Spermatozoa written by R.L. Maddox and published by . This book was released on 1891 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Note on the Development of the Spermatozoa of a Decapod Macrurous Crustacean, Atyephira Compressa, de Haan by : Chiyomatsu Ishikawa
Download or read book Note on the Development of the Spermatozoa of a Decapod Macrurous Crustacean, Atyephira Compressa, de Haan written by Chiyomatsu Ishikawa and published by . This book was released on 1909 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vitality of Spermatozoa by : Walter Sewell Anderson
Download or read book Vitality of Spermatozoa written by Walter Sewell Anderson and published by . This book was released on 1922 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Functional Anatomy of the Spermatozoon by : Björn A. Afzelius
Download or read book The Functional Anatomy of the Spermatozoon written by Björn A. Afzelius and published by Elsevier. This book was released on 2017-01-31 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Functional Anatomy of the Spermatozoon is the 23rd volume of the series Wenner-Gren Center International Symposium Series, documenting the proceedings of the Second International Symposium on Comparative Spermatology, held in August 1973. This volume mainly focuses on the understanding of the early events at fertilization and the preliminaries of this biological process. This text specifically tackles the sperm at fertilization of lower animals and mammals, sperm motility and diversity, and spermatogenesis. This book concludes with discussions on capacitation and maturation of mammalian spermatozoa. This compendium will be valuable to morphologists, physiologists, immunologists, and biochemists, as well as to academicians interested in the study of functional anatomy of the spermatozoon.