Download or read book Microglia in the Regenerating and Degenerating Central Nervous System written by Wolfgang J. Streit and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of microglial cells has recently gained importance for those researching degeneration and regeneration. Microglia in the regenerating and degenerating CNS supports the assertion that understanding microglial biology could perhaps be pivotal for unraveling the pathogenetic mechanisms that underlie Alzheimer's disease, In addition, microglia are also critical for understanding the sequelae of traumatic brain and spinal cord injury, and for the important post-traumatic repair processes. This book gives an up to date account of the role of microglia in degeneration and regeneration of the nervous system and reviews their cell function and physiology.
Download or read book Dual Role of Microglia in Health and Disease Pushing the Balance Towards Repair written by Raquel Ferreira and published by Frontiers Media SA. This book was released on 2015-07-23 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microglial cells play a vital role in the innate immune response occurring in the Central Nervous System (CNS). Under physiologic conditions, microglia dynamically patrol the brain parenchyma and participate in the remodeling of active neuronal circuits. Accordingly, microglia can boost synaptic plasticity by removing apoptotic cells and by phagocytizing axon terminals and dendritic spines that form inappropriate neural connections. Upon brain and spinal cord injury or infection, microglia act as the first line of immune defense by promoting the clearance of damaged cells or infectious agents and by releasing neurotrophins and/ or proneurogenic factors that support neuronal survival and regeneration. Recently, two main pathways were suggested for microglia activation upon stimuli. Classical activation is induced by Toll-like receptor agonists and Th1 cytokines and polarizes cells to an M1 state, mainly leading to the release of TNF-alpha, IL-6 and nitric oxide and to grave neural damage. Alternative activation is mediated by Th2 cytokines and polarizes cells to an M2a state inducing the release of antiinflammatory factors. These findings have further fueled the discussion on whether microglia has a detrimental or beneficial action (M1 or M2-associated phenotypes, respectively) in the diseased or injured CNS and, more importantly, on whether we can shift the balance to a positive outcome. Although microglia and macrophages share several common features, upon M1 and M2 polarizing conditions, they are believed to develop distinct phenotypic and functional properties which translate into different patterns of activity. Moreover, microglia/macrophages seem to have developed a tightly organized system of maintenance of CNS homeostasis, since cells found in different structures have different morphology and specific function (e.g. meningeal macrophages, perivascular macrophages, choroid plexus macrophages). Nevertheless, though substantial work has been devoted to microglia function, consensus around their exact origin, their role during development, as well as the exact nature of their interaction with other cells of the CNS has not been met. This issue discusses how microglial cells sustain neuronal activity and plasticity in the healthy CNS as well as the cellular and molecular mechanisms developed by microglia in response to injury and disease. Understanding the mechanisms involved in microglia actions will enforce the development of new strategies to promote an efficient CNS repair by committing microglia towards neuronal survival and regeneration.
Download or read book Degeneration and Regeneration in the Nervous System written by Norman Saunders and published by CRC Press. This book was released on 2014-04-21 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Degeneration and Regeneration in the Nervous System brings together an international team of contributors to produce a series of critical reviews appraising key papers in the field. The pace of research on brain and spinal cord injury quickened considerably in the last ten years and there is much that is new and important that is covered in this book. However, there is still a long way to go before our knowledge will explain fully why the central nervous system has such a limited capacity for regeneration, and before experimental solutions can be applied to the patient. With emphasis on actual and therapeutic importance of the work reviewed, Degeneration and Regeneration in the Nervous System is a useful overview for graduate students, their teachers and researchers working in this field.
Download or read book Microglia in Health and Disease written by Marie-Ève Tremblay and published by Springer. This book was released on 2014-09-22 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: These past few years have witnessed a revolution in our understanding of microglia, especially since their roles in the healthy central nervous system (CNS) have started to unravel. These cells were shown to actively maintain health, in concert with neurons and other types of CNS cells, providing further insight into their involvement with diseases. Edited by two pioneers in the field, Marie-Ève Tremblay and Amanda Sierra, Microglia in health and disease aims to share with the broader scientific community some of the recent discoveries in microglia research, from a broad perspective, with a collection of 19 chapters from 52 specialists working in 11 countries across 5 continents. To set microglia on the stage, the book begins by explaining briefly who they are, what they do in the healthy and diseased CNS, and how they can be studied. The first section describes in more details their physiological roles in the maturation, function, and plasticity of the CNS, across development, adolescence, adulthood, neuropathic pain, addiction, and aging. The second section focuses on their implication in pathological conditions impairing the quality of life: neurodevelopmental and neuropsychiatric disorders, AIDS, and multiple sclerosis; and in leading causes of death: ischemia and stroke, neurodegenerative diseases, as well as trauma and injury.
Download or read book From Development to Degeneration and Regeneration of the Nervous System written by Charles E. Ribak PhD and published by Oxford University Press. This book was released on 2009 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides current information about the three areas mentioned in the title: Neuronal Migration and Development, Degenerative Brain Diseases, and Neural Plasticity and Regeneration. The chapters about brain development examine the cellular and molecular mechanisms by which neurons are generated from the ventricular zone in the forebrain and migrate to their destinations in the cerebral cortext. This description of cortical development also includes a discussions of the Cajal-Retzius cell. Another chapter provides insight about the development of another forebrain region, the hypothalamus. The remaining chapters of this section examine the clinical relevance of brain development in certain disease states in humans: neural tube defects and the normal and abnormal development of human electroencephalographic recordings during the first year of age.The second section on degenerative disorders of the brain begins wtih details about the dopaminergic neurons in the substantia niger and their loss in Parkinson's disease. Two subsequent chapters describe changes in brain aging, including changes in the numbers of myelinated axons. Other chapters in this section describe important cellular and molecular changes found in Alzheimer's disease and human epilepsy. Together, these chapters summarize much of our current knowledge about the major molecular and cellular changes found in several degenerative diseases of the brain.The last section addresses the issues of brain plasticity and regeneration in the adult brain and begins with a chapter on how the brain's own stem cells provide newly generated neurons to the hippocampal dentate gyrus and how these neurons become integrated into neural circuitry. The following two chapters examine some of the neuroplastic changes that take place in motor and sensory cortices of awake behaving primates. The concluding two chapters address the issue of regeneration in the injured spinal cord and the factors that may contribute to its success.
Download or read book Cajal s Degeneration and Regeneration of the Nervous System written by Santiago Ramón y Cajal and published by History of Neuroscience. This book was released on 1991 with total page 977 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a reprint of an English translation of Cajal's original work, with abundant notes and commentaries by the editor. This text describes Cajal's fundamental contributions to neuroscience, which continue to be important today. It accurately details Cajal's ideas and data, and providesreaders with the opportunity to learn what Cajal thought about his research career and the significance of his observations. Excerpts from Tello's memorial lectures also provide a contemporary view of Cajal's work.
Download or read book Microglia in Health and Disease A Unique Immune Cell Population written by Alessandro Michelucci and published by Frontiers Media SA. This book was released on 2018-10-05 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microglia are essential for the development and function of the adult brain. Their ontogeny, together with the absence of turnover from the periphery and the singular environment of the central nervous system (CNS), make microglia a unique cell population compared to other tissue-macrophages. The unique properties and functions of microglial cells, such as their role in synaptic pruning or the exceptional capacity to scan the brain parenchyma and rapidly react to its perturbations, have emerged in recent years. In the coming years, understanding how microglia acquire and maintain their unique profiles in order to fulfil distinct tasks in the healthy CNS and how these are altered in disease, will be essential to develop strategies to diagnose or treat CNS disorders with an immunological component. This Research Topic covers several aspects of microglial biology, ranging from their origin and the functional role of microglia during development and lifespan, their molecular properties compared with other brain and peripheral immune cells to microglial phenotypes and functional states in neurodegenerative diseases and brain tumours. In conclusion, the present Research Topic provides a comprehensive overview of our current understanding of several cellular and molecular mechanisms that make microglia a unique immune cell population within the healthy CNS as well as under inflammatory, neurodegenerative and tumorigenic processes.
Download or read book Indwelling Neural Implants written by William M. Reichert and published by CRC Press. This book was released on 2007-12-17 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite enormous advances made in the development of external effector prosthetics over the last quarter century, significant questions remain, especially those concerning signal degradation that occurs with chronically implanted neuroelectrodes. Offering contributions from pioneering researchers in neuroprosthetics and tissue repair, Indwel
Download or read book Textbook of Neural Repair and Rehabilitation written by Michael E. Selzer and published by Cambridge University Press. This book was released on 2014 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: In two freestanding volumes, the Textbook of Neural Repair and Rehabilitation provides comprehensive coverage of the science and practice of neurological rehabilitation. Revised throughout, bringing the book fully up to date, this volume, Neural Repair and Plasticity, covers the basic sciences relevant to recovery of function following injury to the nervous system, reviewing anatomical and physiological plasticity in the normal central nervous system, mechanisms of neuronal death, axonal regeneration, stem cell biology, and research strategies targeted at axon regeneration and neuron replacement. New chapters have been added covering pathophysiology and plasticity in cerebral palsy, stem cell therapies for brain disorders and neurotrophin repair of spinal cord damage, along with numerous others. Edited and written by leading international authorities, it is an essential resource for neuroscientists and provides a foundation for the work of clinical rehabilitation professionals.
Download or read book The Macrophage as Therapeutic Target written by J. M. Aerts and published by Springer Science & Business Media. This book was released on 2003-07-10 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: with contributions by numerous experts
Download or read book Macrophages and the Nervous System written by Perry and published by Springer. This book was released on 1994 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interface between the immune and nervous systems is an increasingly important area of scientific research. This book is an up-to-date review of research conducted on the main cell of the immune system (macrophage) and its relationship with neuronal cells.
Download or read book Never resting microglia physiological roles in the healthy brain and pathological implications written by Amanda Sierra and published by Frontiers E-books. This book was released on 2015-02-11 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microglia are largely known as the major orchestrators of the brain inflammatory response. As such, they have been traditionally studied in various contexts of disease, where their activation has been assumed to induce a wide range of detrimental effects. In the last few years, a series of discoveries have challenged the current view of microglia, showing their active and positive contribution to normal brain function. This Research Topic reviewed the novel physiological roles of microglia in the developing, mature and aging brain, under non-pathological conditions. In particular, this Research Topic discussed the cellular and molecular mechanisms by which microglia contribute to the formation, pruning and plasticity of synapses; the regulation of adult neurogenesis as well as hippocampal learning and memory; among other important roles. Because these novel findings defy our understanding of microglial function in health as much as in disease, this Research Topic also summarized the current view of microglial nomenclature, phenotypes, origin and differentiation, and contribution to various brain pathologies. Additionally, novel imaging approaches and molecular tools to study microglia in their non-activated state have been discussed. In conclusion, this Research Topic seeked to emphasize how the current research in neuroscience is challenged by never-resting microglia.
Download or read book Cellular and Molecular Biology of Autism Spectrum Disorders written by Anna Strunecká and published by Bentham Science Publishers. This book was released on 2010-12-24 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Over the past several decades the incidence of autism spectrum disorders (ASD) has increased dramatically. The etiology of ASD remains an unsolved puzzle to scientists, physicians, pediatricians, psychiatrists, and pharmacologists. Our E-book will address"
Download or read book Immune Responses in the Nervous System written by Nancy Rothwell and published by Taylor & Francis. This book was released on 1995 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many molecules and mechanisms traditionally associated with the peripheral immune system have been found to be active within the central nervous system. The investigation of immune activation is a rapidly expanding field of research, particularly since it is directly related to acute neuronal damage and in degenerative disorders of the nervous system such as Alzheimer's disease and multiple sclerosis. This volume brings together a team of internationally recognized experts who address topics such as neuronal transplantation, leukocyte migration, the role of inflammation and immune responses in neurological diseases and brain injury, and the potential benefits of treatment with modulators of cytokine action. It will be of interest to all researchers and clinicians involved in the understanding, diagnosis and treatment of neuroimmune diseases.
Download or read book The Role of Glia in Neurotoxicity written by Michael Aschner and published by CRC Press. This book was released on 2004-12-28 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting the latest research in glial cell function gleaned from new techniques in imaging and molecular biology, The Role of Glia in Neurotoxicity, Second Edition covers multiple aspects of glial cells, including morphology, physiology, pharmacology, biochemistry, pathology, and their involvement in the pathophysiology of neurological diseases.
Download or read book Fundamental Neuropathology for Pathologists and Toxicologists written by Brad Bolon and published by John Wiley & Sons. This book was released on 2011-10-04 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers pathologists, toxicologists, other medical professionals, and students an introduction to the discipline and techniques of neuropathology – including chemical and environmental, biological, medical, and regulatory details important for performing an analysis of toxicant-induced neurodiseases. In addition to a section on fundamentals, the book provides detailed coverage of current practices (bioassays, molecular analysis, and nervous system pathology) and practical aspects (data interpretation, regulatory considerations, and tips for preparing reports).
Download or read book Neuroinflammation From Bench to Bedside written by H. Kettenmann and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent work has implicated inflammatory processes in the pathophysiology of a variety of neurodegenerative diseases such as Alzheimer's disease, stroke and multiple sclerosis. In this book leading experts in the field discuss molecular, in vivo and clinical aspects of neuroinflammation. It is hoped, with the wealth of research being conductied in this area, that novel therapeutic targets will be identified which will allow successful therapeutic intervention in a variety of neurodegenerative diseases.
