Download or read book Axoplasmic Transport in Physiology and Pathology written by D. G. Weiss and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cajal and contemporary scientists have laid the basis of the modem concepts of the organization of the nervous system: the cir cuits of the brain are made up of individual neurons which transfer information via specialized structures called synapses. Soma and den drites usually receive the inputs, then the signal is carried all along the axon to the target areas. To fulfIll this task several types of neurons have developed their unique geometry characterized by a large recep tive area (soma and dendrites) and an often very extensive distal branching with the axon terminals. The volume of cytoplasm which constitutes the neuronal periphery is often far larger than the cell body, where the synthetic machinery is located. It is one of the roles ofaxoplasmic transport to supply the periphery with proper material and to sustain the specialized structures necessary for the physiological activity of the neuron. Furthermore, it has become more and more clear that target areas also exert effects on the innervating neurons, and these effects are not only mediated via recurrent fibers. Synapses have been shown to be able to pick up material from the synaptic left which is then intra axon ally transported back to the cell body. This retrograde axoplasmic transport has therefore been recognized as another basic mechanism to convey signals from the periphery to the centre.
Download or read book Axoplasmic Transport in Physiology and Pathology written by Dieter G. Weiss and published by . This book was released on 1982 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physiology and Pathobiology of Axons written by Stephen G. Waxman and published by . This book was released on 1978 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Axoplasmic Transport written by Zafar Iqbal and published by CRC Press. This book was released on 2018-05-04 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Axoplasmic transport is the intracellular movement of cellular components required for the maintenance and normal physiological functioning of neuronal cells. This book provides an up to date reference for both established investigators as well as for those entering in the field.This volume describes the history and methods of the study of transport and the involvement of energy, ions, calmodulin, microtubules and other cellular components in transport. It also discusses the transport of polypeptides, lipids, nucleic acids, neutrotransmitter containing components and various other particles in nerve fibres. A significant portion of this book is devoted to axoplasmic transport, regeneration and the relevance of transport in neurotropic functions are described in the alst four chapters, followed by a discussion on the mechanism of axoplasmic transport.
Download or read book Translational Research in Traumatic Brain Injury written by Daniel Laskowitz and published by CRC Press. This book was released on 2016-04-21 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traumatic brain injury (TBI) remains a significant source of death and permanent disability, contributing to nearly one-third of all injury related deaths in the United States and exacting a profound personal and economic toll. Despite the increased resources that have recently been brought to bear to improve our understanding of TBI, the developme
Download or read book Tau Biology written by Akihiko Takashima and published by Springer Nature. This book was released on 2020-02-24 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents essential studies and cutting-edge research results on tau, which is attracting increasing interest as a target for the treatment of Alzheimer's disease. Tau is well known as a microtubule-associated protein that is predominantly localized in the axons of neurons. In various forms of brain disease, neuronal loss occurs, with deposition of hyperphosphorylated tau in the remaining neurons. Important questions remain regarding the way in which tau forms hyperphosphorylated and fibrillar deposits in neurons, and whether tau aggregation represents the toxic pathway leading to neuronal death. With the help of new technologies, researchers are now solving these long-standing questions. In this book, readers will find the latest expert knowledge on all aspects of tau biology, including the structure and role of the tau molecule, tau localization and function, the pathology, drivers, and markers of tauopathies, tau aggregation, and treatments targeting tau. Tau Biology will be an invaluable source of information and fresh ideas for those involved in the development of more effective therapies and for all who seek a better understanding of the biology of the aging brain.
Download or read book Central Neurone Environment and the Control Systems of Breathing and Circulation written by M. E. Schläfke 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: This volume contains the papers presented at the symposion on Central Neurone Environment and the Control Systems of Breathing and Circulation held at Bochum, October 5-7,1981 in honour of Prof. Dr. Dr. h.c. Hans H. Loeschcke, who retired in March 1981. His discovery of ventral medullary substrates forming an essential drive for the ventilatory as well as for circulatory control systems, and the elaboration of this concept during the last 25 years have profoundly influenced the concepts in this field. In an age of proceeding specializa tion on partial mechanisms, his approach has always emphasized the integrative aspects of the control systems, especially the role of the respiratory control system for the ionic homeostasis of the brain and the close interrelation between neuronal respiratory and cardiovascular control. This general intention implies the combination of physico chemical and neurophysiological approaches as well as the study of peripheral function of respiration and circulation, topics which are usually handled separately according to the different methods.
Download or read book Mitochondrial Dynamics and Neurodegeneration written by Bingwei Lu and published by Springer Science & Business Media. This book was released on 2011-05-16 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mitochondria are essential organelles in eukaryotic cells that control such diverse processes as energy metabolism, calcium buffering, and cell death. Recent studies have revealed that changes in mitochondrial morphology by fission and fusion, a process known as mitochondrial dynamics, is particularly important for neuronal function and survival. Defects in this process are commonly found in neurodegenerative diseases, offering a new paradigm for investigating mechanisms of neurodegeneration. To provide researchers working on neurodegenerative diseases and mitochondria with updated information on this rapidly progressing field, we have invited experts in the field to critically review recent progresses and identify future research directions. The topics include genetics of mitochondrial dynamics, mitochondrial dynamics and bioenergetics, autophagy, apoptosis, and axonal transport, and its role in neurological diseases, including Alzheimer’s, Parkinson’s, and Huntington’s diseases.
Download or read book Textbook of Stroke Medicine written by Michael Brainin and published by Cambridge University Press. This book was released on 2014-09-11 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully revised throughout, the new edition of this concise textbook is aimed at doctors preparing to specialize in stroke care.
Download or read book Oligodendrocyte Physiology and Pathology Function written by Markus Kipp and published by MDPI. This book was released on 2021-01-06 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The adult vertebrate central nervous system mainly consists of neurons, astrocytes, microglia cells, and oligodendrocytes. Oligodendrocytes, the myelin-forming cells of the CNS, are subjected to cell stress and subsequent death in a number of metabolic or inflammatory disorders, among which multiple sclerosis (MS) is included. This disease is associated with the development of large demyelinated plaques, oligodendrocyte destruction, and axonal degeneration, paralleled by the activation of astrocytes and microglia as well as the recruitment of peripheral immune cells to the site of tissue injury. Of note, viable oligodendrocytes and an intact myelin sheath are indispensable for neuronal health. For example, it has been shown that oligodendrocytes provide nutritional support to neurons, fast axonal transport depends on proper oligodendrocyte function, and mice deficient in mature myelin proteins eventually display severe neurodegeneration. This Special Issue contains a collection of highly relevant primary research articles as well as review articles focusing on the development, physiology, and pathology of the oligodendrocyte–axon–myelin unit.
Download or read book Mayo Clinic Medical Neurosciences written by Eduardo E. Benarroch and published by Oxford University Press. This book was released on 2017-11-06 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully updated and revised according to student feedback, the sixth edition of Mayo Clinic Medical Neurosciences: Organized by Neurologic System and Level provides a systematic approach to anatomy, physiology, and pathology of the nervous system inspired by the neurologist's approach to solving clinical problems. This volume has 4 sections: 1) an overview of the neurosciences necessary for understanding anatomical localization and pathophysiologic characterization of neurologic disorders; 2) an approach to localizing lesions in the 7 longitudinal systems of the nervous system; 3) an approach to localizing lesions in the 4 horizontal levels of the nervous system; and 4) a collection of clinical problems. This book provides the neuroscience framework to support the neurologist in a clinical setting and is also a great resource for neurology and psychiatry board certifications. This is the perfect guide for all medical students and neurology, psychiatry, and physical medicine residents at early stages of training. New to This Edition - A chapter devoted to multiple-choice questions for self-assessment - Discussion of emerging concepts in molecular, cellular, and system neurosciences - New chapters on emotion and consciousness systems - Incorporation of new discoveries in neuroimaging and an appendix for tables of medications commonly used to treat neurologic disorders
Download or read book Microtubules written by Pierre Dustin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: The decision, in 1975, to write alone a monograph on micro tubules was not without risks. While I was familiar from its start in Brussels in 1934 with the work on col chicine and other mitotic poisons, the literature on microtubules was, 8 years ago, already increasing at an impressive rate. However, this monograph, which, contrary to other works on microtubules, tried to cover the whole field of research, from the fundamentals of the tubulin molecule and the possible role of these organelles in some aspects of human pathology, to some medical applications of microtubule poisons, has been accepted as a useful tool for workers in these fields. Since 1976, (date of the last references mentioned in the monograph) until the middle of 1983, papers on microtubule research have literally been pouring in, at the rate of several hundred a year. This may justify a second edition, although the considerable difficulties in keeping the size of the book within the same limits while not forgetting to mention some important work, could not be overlooked. The need for an entirely revised and rewritten edition prompted this new venture and was possible with the help of the considerable amount of reprints kindly sent to me day after day over the years. This work would have been unthinkable if the author had not maintained the same enthusiasm for microtubule research, which has been disclosing new facts every day.
Download or read book Tau oligomers written by Jesus Avila and published by Frontiers E-books. This book was released on 2014-08-18 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurofibrillary tangles (NFTs) composed of intracellular aggregates of tau protein are a key neuropathological feature of Alzheimer’s Disease (AD) and other neurodegenerative diseases, collectively termed tauopathies. The abundance of NFTs has been reported to correlate positively with the severity of cognitive impairment in AD. However, accumulating evidences derived from studies of experimental models have identified that NFTs themselves may not be neurotoxic. Now, many of tau researchers are seeking a “toxic” form of tau protein. Moreover, it was suggested that a “toxic” tau was capable to seed aggregation of native tau protein and to propagate in a prion-like manner. However, the exact neurotoxic tau species remain unclear. Because mature tangles seem to be non-toxic component, “tau oligomers” as the candidate of “toxic” tau have been investigated for more than one decade. In this topic, we will discuss our consensus of “tau oligomers” because the term of “tau oligomers” [e.g. dimer (disulfide bond-dependent or independent), multimer (more than dimer), granular (definition by EM or AFM) and maybe small filamentous aggregates] has been used by each researchers definition. From a biochemical point of view, tau protein has several unique characteristics such as natively unfolded conformation, thermo-stability, acid-stability, and capability of post-translational modifications. Although tau protein research has been continued for a long time, we are still missing the mechanisms of NFT formation. It is unclear how the conversion is occurred from natively unfolded protein to abnormally mis-folded protein. It remains unknown how tau protein can be formed filaments [e.g. paired helical filament (PHF), straight filament and twisted filament] in cells albeit in vitro studies confirmed tau self-assembly by several inducing factors. Researchers are still debating whether tau oligomerization is primary event rather than tau phosphorylation in the tau pathogenesis. Inhibition of either tau phosphorylation or aggregation has been investigated for the prevention of tauopathies, however, it will make an irrelevant result if we don’t know an exact target of neurotoxicity. It is a time to have a consensus of definition, terminology and methodology for the identification of “tau oligomers”.
Download or read book Anatomy and Physiology written by J. Gordon Betts and published by . This book was released on 2013-04-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physiology and Pathology of Chloride Transporters and Channels in the Nervous System written by F. Javier Alvarez-Leefmans and published by Academic Press. This book was released on 2009-08-22 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of chloride ions in cell physiology has not been fully recognized until recently, in spite of the fact that chloride (Cl-), together with bicarbonate, is the most abundant free anion in animal cells, and performs or determines fundamental biological functions in all tissues. For many years it was thought that Cl- was distributed in thermodynamic equilibrium across the plasma membrane of most cells. Research carried out during the last couple of decades has led to a dramatic change in this simplistic view. We now know that most animal cells, neurons included, exhibit a non-equilibrium distribution of Cl- across their plasma membranes. Over the last 10 to 15 years, with the growth of molecular biology and the advent of new optical methods, an enormous amount of exciting new information has become available on the molecular structure and function of Cl- channels and carriers. In nerve cells, Cl- channels and carriers play key functional roles in GABA- and glycine-mediated synaptic inhibition, neuronal growth and development, extracellular potassium scavenging, sensory-transduction, neurotransmitter uptake and cell volume control. Disruption of Cl- homeostasis in neurons underlies pathological conditions such as epilepsy, deafness, imbalance, brain edema and ischemia, pain and neurogenic inflammation. This book is about how chloride ions are regulated and how they cross the plasma membrane of neurons. It spans from molecular structure and function of carriers and channels involved in Cl- transport to their role in various diseases. The first comprehensive book on the structure, molecular biology, cell physiology, and role in diseases of chloride transporters / channels in the nervous system in almost 20 years Chloride is the most abundant free anion in animal cells. THis book summarizes and integrates for the first time the important research of the past two decades that has shown that Cl- channels and carriers play key functional roles in GABA- and glycine-mediated synaptic inhibition, neuronal growth and development, extracellular potassium scavenging, sensory-transduction, neurotransmitter uptake and cell volume control The first book that systematically discusses the result of disruption of Cl- homeostasis in neurons which underlies pathological conditions such as epilepsy, deafness, imbalance, brain edema and ischemia, pain and neurogenic inflammation Spanning topics from molecular structure and function of carriers and channels involved in Cl- transport to their role in various diseases Involves all of the leading researchers in the field Includes an extensive introductory section that covers basic thermodynamic and kinetics aspects of Cl- transport, as well as current methods for studying Cl- regulation, spanning from fluorescent dyes in single cells to knock-out models to make the book available for a growing population of graduate students and postdocs entering the field
Download or read book Mitochondrial Dysfunction written by Lawrence H. Lash and published by Elsevier. This book was released on 2013-10-22 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods in Toxicology, Volume 2: Mitochondrial Dysfunction provides a source of methods, techniques, and experimental approaches for studying the role of abnormal mitochondrial function in cell injury. The book discusses the methods for the preparation and basic functional assessment of mitochondria from liver, kidney, muscle, and brain; the methods for assessing mitochondrial dysfunction in vivo and in intact organs; and the structural aspects of mitochondrial dysfunction are addressed. The text also describes chemical detoxification and metabolism as well as specific metabolic reactions that are especially important targets or indicators of damage. The methods for measurement of alterations in fatty acid and phospholipid metabolism and for the analysis and manipulation of oxidative injury and antioxidant systems are also considered. The book further tackles additional methods on mitochondrial energetics and transport processes; approaches for assessing impaired function of mitochondria; and genetic and developmental aspects of mitochondrial disease and toxicology. The text also looks into mitochondrial DNA synthesis, covalent binding to mitochondrial DNA, DNA repair, and mitochondrial dysfunction in the context of developing individuals and cellular differentiation. Microbiologists, toxicologists, biochemists, and molecular pharmacologists will find the book invaluable.
Download or read book Glial Physiology and Pathophysiology written by Alexei Verkhratsky and published by John Wiley & Sons. This book was released on 2013-01-31 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glial Physiology and Pathophysiology provides a comprehensive, advanced text on the biology and pathology of glial cells. Coverae includes: the morphology and interrelationships between glial cells and neurones in different parts of the nervous systems the cellular physiology of the different kinds of glial cells the mechanisms of intra- and inter-cellular signalling in glial networks the mechanisms of glial-neuronal communications the role of glial cells in synaptic plasticity, neuronal survival and development of nervous system the cellular and molecular mechanisms of metabolic neuronal-glial interactions the role of glia in nervous system pathology, including pathology of glial cells and associated diseases - for example, multiple sclerosis, Alzheimer's, Alexander disease and Parkinson's Neuroglia oversee the birth and development of neurones, the establishment of interneuronal connections (the 'connectome'), the maintenance and removal of these inter-neuronal connections, writing of the nervous system components, adult neurogenesis, the energetics of nervous tissue, metabolism of neurotransmitters, regulation of ion composition of the interstitial space and many, many more homeostatic functions. This book primes the reader towards the notion that nervous tissue is not divided into more important and less important cells. The nervous tissue functions because of the coherent and concerted action of many different cell types, each contributing to an ultimate output. This reaches its zenith in humans, with the creation of thoughts, underlying acquisition of knowledge, its analysis and synthesis, and contemplating the Universe and our place in it. An up-to-date and fully referenced text on the most numerous cells in the human brain Detailed coverage of the morphology and interrelationships between glial cells and neurones in different parts of the nervous system Describes the role og glial cells in neuropathology Focus boxes highlight key points and summarise important facts Companion website with downloadable figures and slides
