Download or read book Essai n 476 Essais in vitro de mutation g nique sur cellules de mammif res utilisant les g nes Hprt et xprt written by OECD and published by OECD Publishing. This book was released on 2015-07-28 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'essai in vitro de mutation génique sur des cellules de mammifères peut être employé pour détecter des mutations induites par les substances chimiques.
Download or read book Essai n 470 written by Organisation for Economic Co-operation and Development and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La Ligne directrice décrit l'essai in vivo de mutation du gène Pig-a sur érythrocytes de mammifères qui utilise un gène endogène de mammifère, le gène de classe A phosphatidylinositol-glycane (Pig-a), comme rapporteur de mutation d'un gène de cellule somatique. Les tests de mutation génique in vivo tels que l'essai Pig a se prêtent particulièrement bien à l'évaluation de la mutagénicité, car une série de facteurs physiologiques tels que l'absorption du produit chimique d'essai à partir du site d'exposition, sa distribution dans l'ensemble du système d'essai par la circulation systémique, ainsi que les processus in vivo du métabolisme et de la réparation de l'ADN, contribuent aux réponses mutagéniques. L'essai Pig-a peut être pratiqué sur les souches communément utilisées de rats ou de souris (1) (voir paragraphe 28), et ne nécessite pas d'euthanasier les animaux. Ces caractéristiques facilitent l'intégration de l'essai Pig a à de nombreux protocoles d'essai in vivo sur des rongeurs.
Download or read book Cytogenetics written by J. Schulz-Schaeffer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1961 the author has taught a course in Cytogenetics at Montana State University. Undergraduate and graduate stu dents of Biology, Chemistry, Microbiology, Animal and Range Science, Plant and Soil Science, Plant Pathology and Veterinary Science are enrolled. Therefore, the subject matter has been pre sented in an integrated way to correlate it with these diverse disciplines. This book has been prepared as a text for this course. The most recent Cytogenetics text was published in 1972, and rapidly developing research in this field makes a new one urgently needed. This book includes many aspects of Cytogenetics and related fields and is written for the college student as well as for the researcher. It is recommended that the student should have taken preparatory courses in Principles of Genetics and Cytol ogy. The content is more than is usually taught during one quar ter of an academic year, thus allowing an instructor to choose what he or she would like to present to a class. This approach also allows the researcher to obtain a broad exposure to this field of biology. References are generously supplied to stimulate orig inal reading on the subject and to give access to valuable sources. The detailed index is intended to be of special assistance to researchers.
Download or read book Chemical Mutagens written by and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the X Chromosome of Man written by Victor Almon McKusick and published by . This book was released on 1964 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Melatonin Neuroprotective Agents and Antidepressant Therapy written by Francisco López-Muñoz and published by Springer. This book was released on 2016-11-16 with total page 917 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work is a guidebook for clinicians who are involved in treating depressive patients and also serves the research scientists who are working on the psychopharmacological mechanisms of antidepressant actions and psychopathological mechanisms underlying mood disorders. Mood disorders such as major depressive disorder (MDD), bipolar disorder (BPD) and seasonal affective disorder (SAD) are the most disabling disorders that are among the most expensive of all medical illnesses. The pathophysiology of mood disorders is very complex and involves many mechanisms like circadian rhythm disruption, sleep abnormalities, melatonin rhythm abnormalities and alterations in melatonin receptor mechanisms, abnormalities in monoaminergic neurotransmitter mechanisms, glutamatergic release mechanisms, hippocampal neurogenesis, and abnormal immune and cytokine release mechanisms. Many antidepressants that are in clinical use today including the recently introduced novel agents like agomelatine or other antidepressants cause clinical remission by resynchronizing disrupted circadian rhythms and melatonin receptor functions, enhancing monoaminergic neurotransmission, promoting hippocampal neurogenesis, and regulating immune mechanisms. This book explains various etiological factors that are involved in the pathogenesis of mood disorders and the mechanisms of therapeutic actions of antidepressants including the recently introduced agomelatine and other antidepressants that exhibit rapid onset of action with greater efficacy and fewer side effects. .
Download or read book Ultrastructure of Reproduction written by Jonathan van Blerkom and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the development and application of electron microscopic techniques have occurred recently such that the electron microscope has evolved to become an essential tool in both basic and clinical research. Use of this instrument has contributed significantly to the formation of new perspectives and concepts concerning cell fine structure. These structural perspectives are now being integrated with specific functional, biochemical and pathophysiological events and processes of cells and tissues. Most recently, utilization of innovative electron microscopic techniques such as freeze-fracture, freeze etching, and scanning and high-voltage electron microscopy offers both the basic and clinical scientist potentially fundamental insights into many morphodynamic processes related to the activities of cells and tissues. Such an approach has been especially rewarding when applied to the dynamic events of gametogenesis and early embryonic development. The chapters comprising this book have been selected and edited with the aim of providing an up-to-date and comprehensive account of the most important aspects of vertebrate gamets and embryos as revealed by the integration of several different submicroscopic methods. The organization of the chapters is designed to indicate present gaps in our knowledge of the developmental and reproductive biology of gametes and the developing embryo and possible Iines of research which may lead to a lessening of these gaps.
Download or read book Environmental Health Criteria written by and published by . This book was released on 1976 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Clinical Neuroembryology written by Hans J. ten Donkelaar and published by Springer Science & Business Media. This book was released on 2006-09-07 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in developmental neurobiology and advances in (neuro) genetics have been spectacular. The high resolution of modern imaging techniques applicable to developmental disorders of the human brain and spinal cord have created a novel insight into the developmental history of the central nervous system (CNS). This book provides a comprehensive overview of the development of the human CNS in the context of its many developmental disorders. It provides a unique combination of data from human embryology, animal research and developmental neuropathology, and there are more than 400 figures in over a hundred separate illustrations.
Download or read book Male Infertility written by T.B. Hargreave and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Male infertility is a clinician-orientied book aimed at the clinician dealing with the infertile couple because rational, effective management is only possible if the couple are considered together. The aim of the work is to provide advice to the clinician and to give reference to the underlying science. This will not only enable clinicians to understand the underlying science but will also give scientists an insight to clinical work. This blend of science and clinical work is reflected in the contributors who are experts drawn from both fields.
Download or read book Tryptophan Serotonin and Melatonin written by Gerald Huether and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the Ninth Meeting of the "International Study Group for Tryptophan Research" (lSTRY), held at the University of Hamburg, Germany, from October 10 to 14, 1998. At this meeting the recent developments in the field of tryptophan research were presented by leading researchers from all over the world in 81 oral and 48 poster contri butions. Research on tryptophan and its derivatives provides an inexhaustible subject. At the conference we tried to compose a multifacetted picture of the recent investiga tions through contributions from the major disciplines involved. Thus, we tried to strike a balance between basic research topics and clinical, nutritional or industrial applica tions. We offered workshops on tryptophan (in sleep and mood), melatonjn, IDO-acti vation and the eosinophilia-myalgia syndrome (EMS) as a platform for intensive discussion for the participants. In these proceedings many contributions are multidisciplinary and have practical or theoretical implications for different research fields. Hence, we have organized this volume in nine main chapters according to basic disciplines and subjects. We are aware that this classification is artificial, but we hope that it is the best compromise for contributors and readers.
Download or read book The Leydig Cell written by Anita H. Payne and published by . This book was released on 1996 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pangolins written by and published by Academic Press. This book was released on 2019-11-23 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pangolins: Science, Society and Conservation brings together experts from around the world to document the most up-to-date scientific knowledge on pangolins and their conservation. It chronicles threats facing the species, explores the current initiatives required to protect them, and looks ahead at the future of pangolin science and conservation efforts. Led by a team of editors with more than 20 years collective experience in pangolin conservation, this book includes accounts of the species' evolution, morphology, and systematics. It discusses the role of pangolins in historically symbolic, mythological, and ritualistic practices across Africa, Asia, and Europe, as well as contemporary practices including international trafficking. Chapters in the latter portion of this book focus on conservation solutions, including law enforcement and international policy, behavior change, local community engagement, ex situ conservation, tourism, and other interventions needed to secure the future of the species. Pangolins: Science, Society and Conservation is the latest volume in Elsevier's species-specific series, Biodiversity of the World: Conservation from Genes to Landscapes. This book is a valuable resource for researchers and students in species conservation science, planning, and policymaking. - Provides detailed accounts of the natural history and conservation status of each pangolin species - Explores the cultural significance of pangolins, historic and contemporary use, and international trade and trafficking - Discusses conservation solutions ranging from law enforcement and local community engagement to ex situ conservation, innovative finance, and tourism
Download or read book Introduction to Molecular Biology written by S Bresler and published by Elsevier. This book was released on 2012-12-02 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Molecular Biology focuses on the principles of polymer physics and chemistry and their applications to fundamental phenomena in biological sciences. It examines the structure, synthesis, and function of nucleic acids and proteins, as well as the physicochemical techniques necessary in determining the macromolecular structure, the kinetics and mechanism of enzyme action, the genetics of bacteria and their viruses, and the genetic code. It also considers the importance of precise quantitative analysis in biochemistry and biophysics, the architecture and function of biological macromolecules, and the unique mechanisms that regulate the cell's biological activity. Organized into five chapters, this book begins with an overview of proteins and their functional activity, from contractility and enzymatic catalysis to immunological activity, formation of selectively permeable membranes, and reversible binding and transport. It explains how such functions are related to molecular interactions and therefore fall within the purview of molecular biology. The book then proceeds with a discussion on the chemical structure of proteins and nucleic acids, the physicochemical techniques in measuring molecular size and shape, the mechanism of enzymatic reactions, the functions of DNA and RNA, and the mechanism of phase transition in polynucleotides. This book is intended for both biologists and non-biologists who want to be acquainted with the advances made in molecular biology, molecular genetics, and molecular biophysics during the 1950s and 1960s.
Download or read book Chemicals via Higher Plant Bioengineering written by Fereidoon Shahidi and published by Springer Science & Business Media. This book was released on 1999-05-31 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food and raw material for its production was generally produced via the traditional agriculture. On the other hand, novel chemicals were manufactured in the laboratory or extracted from plant and animal sources. However, as the world population is steadily in creasing, there is a decrease in traditional agriculture productivity and concerns are also expressed over the damage inflicted to the environment and restrictions that might be en forced in food production. At the same time, there is an increasing demand for high qual ity agricultural products as well as for food ingredients related to both the traditional or newly discovered nutrients or phytochemicals. Trends and developments,~n the area of plant biotechnology and bioengineering has allowed manipulation of genes' !lnd/or insertion of new genes, thus production of trans genic plants. Starting from the introduction of agronomic traits, particularly stress resis tance to diverse environmental factors, process and sensory characteristics, food quality and production of novel varieties of plant-based products through genetic engineering, biotechnology is changing the,;agriculture and the concept of production of plant-ba~~d raw materials. Increasing attention is being paid on research for production of plants !pat can provide a wide array of food and non-food products. Perhaps the first non-food pro,d uct that plant biotechnology would achieve is production of large scale custom-designed industrial oils, but the list of chemicals is long, ranging" from oils and specific triacyl glycerols to biopolymers, enzymes, blood components, amo~g others.
Download or read book Integrative Biophysics written by Fritz-Albert Popp and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the specialists working in this interdisciplinary field of physics, biology, biophysics and medicine are associated with "The International Institute of Biophysics" (IIB), in Neuss, Germany, where basic research and possibilities for applications are coordinated. The growth in this field is indicated by the increase in financial support, interest from the scientific community and frequency of publications. Audience: The scientists of IIB have presented the most essential background and applications of biophotonics in these lecture notes in biophysics, based on the summer school lectures by this group. This book is devoted to questions of elementary biophysics, as well as current developments and applications. It will be of interest to graduate and postgraduate students, life scientists, and the responsible officials of industries and governments looking for non-invasive methods of investigating biological tissues.
Download or read book A Bibliography Of Birds written by Reuben Myron Strong and published by Alpha Edition. This book was released on 2021-01-11 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been considered by academicians and scholars of great significance and value to literature. This forms a part of the knowledge base for future generations. So that the book is never forgotten we have represented this book in a print format as the same form as it was originally first published. Hence any marks or annotations seen are left intentionally to preserve its true nature.
