Download or read book Mechanisms of Neuroinflammation and Inflammatory Neurodegeneration in Acute Brain Injury written by Arthur Liesz and published by Frontiers Media SA. This book was released on 2015-11-13 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanisms of brain-immune interactions became a cutting-edge topic in systemic neurosciences over the past years. Acute lesions of the brain parenchyma, particularly, induce a profound and highly complex neuroinflammatory reaction with similar mechanistic properties between differing disease paradigms like ischemic stroke, intracerebral hemorrhage (ICH) and traumatic brain injury (TBI). Resident microglial cells sense tissue damage and initiate inflammation, activation of the endothelial brain-immune interface promotes recruitment of systemic immune cells to the brain and systemic humoral immune mediators (e.g. complements and cytokines) enter the brain through the damaged blood-brain barrier. These cellular and humoral constituents of the neuroinflammatory reaction to brain injury contribute substantially to secondary brain damage and neurodegeneration. Diverse inflammatory cascades such as pro-inflammatory cytokine secretion of invading leukocytes and direct cell-cell-contact cytotoxicity between lymphocytes and neurons have been demonstrated to mediate the inflammatory ‘collateral damage’ in models of acute brain injury. Besides mediating neuronal cell loss and degeneration, secondary inflammatory mechanisms also contribute to functional modulation of neurons and the impact of post-lesional neuroinflammation can even be detected on the behavioral level. The contribution of several specific immune cell subpopulations to the complex orchestration of secondary neuroinflammation has been revealed just recently. However, the differential vulnerability of specific neuronal cell types and the molecular mechanisms of inflammatory neurodegeneration are still elusive. Furthermore, we are only on the verge of characterizing the control of long-term recovery and neuronal plasticity after brain damage by inflammatory pathways. Yet, a more detailed but also comprehensive understanding of the multifaceted interaction of these two supersystems is of direct translational relevance. Immunotherapeutic strategies currently shift to the center of translational research in acute CNS lesion since all clinical trials investigating direct neuroprotective therapies failed. To advance our knowledge on brain-immune communications after brain damage an interdisciplinary approach covered by cellular neuroscience as well as neuroimmunology, brain imaging and behavioral sciences is crucial to thoroughly depict the intricate mechanisms.

Download or read book Mechanisms of Neuroinflammation written by Gonzalo Emiliano Aranda Abreu and published by BoD – Books on Demand. This book was released on 2017-08-23 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Mechanisms of Neuroinflammation" book explains how the neuronal cells become swollen at the moment of the blood-brain barrier disruption and how they lose their immunological isolation. A cascade of cytokines and immune cells from the bloodstream enters the nervous system, inflaming neurons and activating the glia. This produces a neuroinflammatory process that can generate different neurodegenerative diseases. Better understanding of mechanisms that are activated at the time when the damage to the brain occurs could lead to the development of suitable therapies that revert the neuronal inflammation and thus prevent further damage to the nervous system.

Download or read book Translational Research in Traumatic Brain Injury written by Daniel Laskowitz and published by CRC Press. This book was released on 2015-12-01 with total page 412 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 development of new diagnostic and therapeutic approaches has been disappointingly slow. Translational Research in Traumatic Brain Injury attempts to integrate expertise from across specialties to address knowledge gaps in the field of TBI. Its chapters cover a wide scope of TBI research in five broad areas: Epidemiology Pathophysiology Diagnosis Current treatment strategies and sequelae Future therapies Specific topics discussed include the societal impact of TBI in both the civilian and military populations, neurobiology and molecular mechanisms of axonal and neuronal injury, biomarkers of traumatic brain injury and their relationship to pathology, neuroplasticity after TBI, neuroprotective and neurorestorative therapy, advanced neuroimaging of mild TBI, neurocognitive and psychiatric symptoms following mild TBI, sports-related TBI, epilepsy and PTSD following TBI, and more. The book integrates the perspectives of experts across disciplines to assist in the translation of new ideas to clinical practice and ultimately to improve the care of the brain injured patient.

Download or read book Neuroinflammation written by Paul L. Wood and published by Springer Science & Business Media. This book was released on 1997-10-24 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: An unprecedented review of our current knowledge of the neuroinflammatory mediators and cells involved in neurodegenerative diseases. Beginning with a detailed review of our current concepts of which biochemical mediators are involved in neuronal loss and the mechanisms of cell death, the distinguished contributors critically examine those areas of current research involved in the design of specific pharmacological agents to inhibit at defined points in the neuroinflammatory cascade. They also address the molecular, cellular, and disease model actions of first-generation agents, as well as the potential clinical relevance to AIDS-related dementia, Alzheimer's disease, amyotropic lateral sclerosis (ALS), Down's syndrome, Huntington's disease, multiple sclerosis, Parkinson's disease, and stroke.

Download or read book Neuroinflammation in Traumatic Brain Injury written by Grace Y. Kuo and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuroinflammation following traumatic brain injury (TBI) is an important cause of secondary brain injury that perpetuates the duration and scope of disease after initial impact. This chapter discusses the pathophysiology of acute and chronic neuroinflammation, providing insight into factors that influence the acute clinical course and later functional outcomes. Secondary injury due to neuroinflammation is described by mechanisms of action such as ischemia, neuroexcitotoxicity, oxidative stress, and glymphatic and lymphatic dysfunction. Neurodegenerative sequelae of inflammation, including chronic traumatic encephalopathy, which are important to understand for clinical practice, are detailed by disease type. Prominent research topics of TBI animal models and biomarkers of traumatic neuroinflammation are outlined to provide insight into the advances in TBI research. We then discuss current clinical treatments in TBI and their implications in preventing inflammation. To complete the chapter, recent research models, novel biomarkers, and future research directions aimed at mitigating TBI will be described and will highlight novel therapeutic targets. Understanding the pathophysiology and contributors of neuroinflammation after TBI will aid in future development of prophylaxis strategies, as well as more tailored management and treatment algorithms. This topic chapter is important to both clinicians and basic and translational scientists, with the goal of improving patient outcomes in this common disease.

Download or read book Neuroinflammation written by Alireza Minagar and published by Elsevier. This book was released on 2010-12-17 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inflammation is a central mechanism in many neurological diseases, including stroke, multiple sclerosis, and brain trauma as well as meningitis and contributes to the generation of pain. We are now beginning to understand the impact of the immune system on different nervous system functions and diseases, ranging from damage through tolerance to modulation and repair.This book discusses some of the more common neuro-inflammatory diseases. Topics covered include multiple sclerosis, optic neuritis and Susac syndrome. Comprehensive review of the latest developments in neuroinflammation Includes contributions from leading authorities

Download or read book Cerebral Ischemia written by Ryszard M. Pluta and published by . This book was released on 2021 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerebral ischemia is one of the most common causes of dementia, which develops in more than half of patients after an ischemic episode. The main mechanism is thought to be pathological changes in the hippocampus, especially in the CA1 area, underlying episodic memory impairment, which is the earliest and most important clinical symptom of post-ischemic dementia. The 13 chapters of this book present a new picture of ischemic brain disease, synthesizing the latest data on disease mechanisms, care for patients with this disease, and potential therapeutic targets. The authors present the characteristics of cerebral ischemia from pregnancy and childhood through adolescence to adulthood. The first two chapters provide a snapshot of the anatomy of the cerebral cortex and the hippocampus, the most affected brain structures after cerebral ischemia. This is followed by nine chapters that present a comprehensive view of the pathological mechanisms of cerebral ischemia, and how a deep understanding of these pathomechanisms hold the key for the discovery and development of novel therapies to help patients affected by cerebral ischemia. Chapter 12 shares real-life experience and challenges of rehabilitating patients into the community after cerebral ischemia, and chapter 13 analyzes the social risk variations, including gender inequality, in the reintegration of post-ischemic stroke patients. Although primarily aimed at scientists and clinicians, the contents of the book will be of interest to all those who are interested in cerebral ischemia, including patients and their caregivers.

Download or read book Animal Models of Acute Neurological Injuries written by Jun Chen and published by Springer Science & Business Media. This book was released on 2008-12-16 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite numerous recent studies and exciting discoveries in the field, only limited treatment is available today for the victims of acute neurological injuries. Animal Models of Acute Neurological Injuries provides a standardized methodology manual designed to eliminate the inconsistent preparations and variability that currently jeopardizes advances in the field. Contributed by top experts and many original developers of the models, each chapter contains a step-by-step, proven procedure and visual aids covering the most commonly used animal models of neurological injury in order to highlight the practical applications of animal models rather than the theoretical issues. This intensive volume presents its readily reproducible protocols with great clarity and consistency to best aid neuroscientists and neurobiologists in laboratory testing and experimentation. Comprehensive and cutting-edge, Animal Models of Acute Neurological Injuries is an ideal guide for scientists and researchers who wish to pursue this vital course of study with the proficiency and precision that the field requires.

Download or read book Glial Cells in Health and Disease of the CNS written by Rommy von Bernhardi and published by Springer. This book was released on 2016-10-06 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: A timely overview covering the three major types of glial cells in the central nervous system - astrocytes, microglia, and oligodendrocytes. New findings on glia biology are overturning a century of conventional thinking about how the brain operates and are expanding our knowledge about information processing in the brain. The book will present recent research findings on the role of glial cells in both healthy function and disease. It will comprehensively cover a broad spectrum of topics while remaining compact in size.

Download or read book Biomarkers of Neuroinflammation written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-03-16 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuroinflammation is a burgeoning area of interest in academia and biopharma, with a broadly acknowledged role in many central nervous system (CNS) disorders. However, there is little agreement on the pathophysiological mechanisms that underlie the manifestations of neuroinflammation in the CNS compartment and how neuroinflammation operates as a driver and also as a consequence of disease in the brain. Moreover, another unclear area is how to translate increased understanding of the mechanisms that underlie neuroinflammation and its manifestations in the CNS to therapeutics. To address these gaps in understanding mechanisms and how to translate that understanding into therapeutics, the Forum on Neuroscience and Nervous System Disorders of the National Academies of Sciences, Engineering, and Medicine convened a workshop on March 20-21, 2017, bringing together key leaders in the field from industry, academia, and governmental agencies to explore the role and mechanisms of neuroinflammation in a variety of CNS diseases. The workshop also considered strategies to advance the identification and validation of biomarkers of neuroinflammation that could accelerate development of therapies, bringing much-needed treatments to patients with disorders ranging from neuroinflammatory diseases such as multiple sclerosis (MS) to neuropsychiatric disorders such as depression. This publication summarizes the presentations and discussions from the workshop.

Download or read book Brain Neurotrauma written by Firas H. Kobeissy and published by CRC Press. This book was released on 2015-02-25 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the contribution from more than one hundred CNS neurotrauma experts, this book provides a comprehensive and up-to-date account on the latest developments in the area of neurotrauma including biomarker studies, experimental models, diagnostic methods, and neurotherapeutic intervention strategies in brain injury research. It discusses neurotrauma mechanisms, biomarker discovery, and neurocognitive and neurobehavioral deficits. Also included are medical interventions and recent neurotherapeutics used in the area of brain injury that have been translated to the area of rehabilitation research. In addition, a section is devoted to models of milder CNS injury, including sports injuries.

Download or read book Neuroinflammation in Traumatic Brain Injury written by and published by . This book was released on 2003 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inflammation and Stroke written by Giora Z. Feuerstein and published by Springer Science & Business Media. This book was released on 2001 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: New opportunities for stroke prevention and therapeutics: a hope from anti-inflammatory drugs?.- Inflammation in stroke and CNS trauma - experimental and clinical evidence.- Clinical evidence of inflammation as a risk factor in ischemic stroke.- Inflammation as a risk factor for stroke: evidence from experimental models.- Inflammatory and immune responses to CNS injury: beneficial and detrimental components.- Salutary effect of autoimmune T cells after central nervous system injury.- Traumatic brain injury: is head trauma an inflammatory disease?.- Cyclic activation and inactivation of brain vessels involving inflammatory mediators - implications for stroke.- Inflammatory cells in stroke.- Do leukocytes play a role in focal ischemia in the brain? An objective review of the literature.- The role of microglia in ischemic brain injury.- Inflammatory activation of brain cells by hypoxia: transcription factors and signaling pathways.- Inflammatory cytokines, interleukins and chemokines in stroke and CNS trauma.- Cytokine effects on CNS cells: implications for the pathogenesis and prevention of stroke.- Interleukin-10 in cerebral ischemia and stroke.- Chemokines and ischemic stroke.- Biphasic activity of tumor necrosis factor in stroke and brain trauma: interaction with reactive oxygen species.- Interleukin-1 and IL-1 receptor antagonist in stroke: mechanisms and potential therapeutics.- Inflammatory cytokines in CNS trauma.- Inflammation in cerebral thrombosis, angiogenesis and matrix regulation: a new perspective in stroke research and therapeutics.- Microvessel integrin expression during focal cerebral ischemia.- The inflammatory response in focal cerebral ischemia.- Chronic neuronal perturbation mediated by RAGE, a receptor for ?-sheet fibrils and S100/calgranulins.- Mediators of inflammation and blood-brain barrier permeability in cerebral ischemia.- Inflammatory proteases and oxygen radicals in stroke.- The role of metalloproteinases on blood-brain barrier breakdown after ischemic stroke.- Matrix metalloproteinases and their inhibitors in hypoxia/reoxygenation and stroke.- Extracellular matrix-degrading metalloproteinases and neuroinflammation in stroke.- Anti-oxidant strategies to treat stroke.- Inflammatory adhesion molecules, kinins, nitric oxide complement factors and lipid mediators in stroke.- Selectin-and complement-mediated mechanisms of tissue injury in stroke.- The kallikrein-kinin system in ischemic and traumatic brain injury.- Nitric oxide, nitric oxide synthases and cyclooxygenase-2 in experimental focal stroke.

Download or read book Characterization of Neuropathology and Neuroinflammatory Cascades After Mild Traumatic Brain Injury in Swine written by Michael Ross Grovola and published by . This book was released on 2021 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traumatic Brain Injury (TBI) often results in prolonged or permanent brain dysfunction with over 2.8 million affected annually in the U.S., including over 56,000 deaths, with over 5 million total survivors exhibiting chronic deficits. Mild TBI (also known as concussion) accounts for over 75% of all TBIs every year. Mild TBI is a heterogeneous disorder, and long-term outcomes are dependent on the type and severity of the initial physical event and compounded by secondary pathophysiological consequences such as neuroinflammation, reactive astrocytosis, edema, hypoxia, and excitotoxicity. Neuroinflammation has gained increasing attention for its role in secondary TBI injury as it can have both detrimental and beneficial roles. For example, microglia - the resident immune cell of the central nervous system (CNS) - mediate cell death and may contribute to progressive neurodegeneration but also aid in debris clearance and regeneration. However, prior to the following work microglia had not been studied after diffuse mild TBI in a clinically relevant large animal model at chronic time points.Replicating the injury biomechanics of human mild TBI in animal models presents a substantial challenge, particularly with regards to addressing brain size, neuroanatomy, and acceleration parameters. To address this challenge, our lab uses a swine model of diffuse closed-head TBI that accurately replicates human mild TBI mechanisms and manifestations due to the neuroanatomical similarities between humans and pigs (large gyrencephalic brains with high white to grey matter ratios) that are not present in small animals. This well-characterized model subjects the head to rapid angular acceleration, inducing inertial forces common in human TBI resulting from falls, collisions, or blunt impacts. This injury model has been shown to produce acute and chronic pathologies in patterns that mirror those seen in humans.Therefore, using this rotation-acceleration model of closed-head TBI in pigs, the goal of the studies reported herein was to elucidate the role of microglia and the neuroinflammatory response to single mild TBI out to 1 year post injury through in-depth histological profiling in discrete neuroanatomical regions across three specific aims. First, we assessed the relationship between the hallmark axonal pathology of diffuse TBI and alterations in glial cell activation or morphology. Then, we examined neuroinflammatory and synaptic changes in sub-regions of the dentate gyrus following a single mild TBI, as the hippocampus is notably susceptible to damage post-TBI and microglia may play a role in synaptic remodeling. Finally, we assessed gray matter neuropathology and neuroinflammation in response to a novel mechanism of immediate neuronal membrane disruption following TBI. These studies will inform future work to characterize the underlying molecular and neurophysiological alterations post-TBI, as well as potential contributions to neurological deficits. It is hoped that these aims will translate to advances in the treatment and prevention of the long-term consequences of TBI in people.

Download or read book Targeting Neuroinflammation in Central Nervous System Disorders Uncovering Mechanisms Pharmacological Targets and Neuropharmaceutical Developments written by Mariela Fernanda Perez and published by Frontiers Media SA. This book was released on 2022-01-20 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neurodegenerative Diseases written by Philip Beart and published by Springer. This book was released on 2017-07-03 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a timely overview of critical advances in molecular and cellular neurobiology, covers key methodologies driving progress, and highlights key future directions for research on neuronal injury and neurodegeneration relevant to neuronal brain pathologies. The editors bring together contributions from internationally recognized workers in the field to provide an up to date account of how and why molecular and cellular neurobiology is such an important area for clinical neuroscience. Understanding the molecular aspects of a number of neurodegenerative conditions such as Parkinson's or Alzheimer's disease for the purpose of improving patient management remains a major challenge of neurobiology be it from the basic or clinical perspective. A strategic evaluation of research contributions and the power of modern methods will help advance knowledge over the next years.

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”.