Download or read book Chronic Inflammation and Neurodegeneration in Retinal Disease written by Settimio Rossi and published by Frontiers Media SA. This book was released on 2021-12-21 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: We would like to acknowledge and thank Francesco Petrillo, Carlo Gesualdo, Chiara Bianca Maria Platania and Maria Consiglia Trottafor their support on the collection’s Editorial article.

Download or read book Chronic Inflammation and Neurodegeneration in Retinal Disease Volume II written by Settimio Rossi and published by Frontiers Media SA. This book was released on 2022-06-27 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Regulation of inflammation and metabolism in retinal neurodegenerative disorders written by Henri Leinonen and published by Frontiers Media SA. This book was released on 2023-01-05 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neurodegenerative Diseases written by Shamim I. Ahmad and published by Springer Science & Business Media. This book was released on 2012-03-12 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: The editor of this volume, having research interests in the field of ROS production and the damage to cellular systems, has identified a number of enzymes showing ·OH scavenging activities details of which are anticipated to be published in the near future as confirmatory experiments are awaited. It is hoped that the information presented in this book on NDs will stimulate both expert and novice researchers in the field with excellent overviews of the current status of research and pointers to future research goals. Clinicians, nurses as well as families and caregivers should also benefit from the material presented in handling and treating their specialised cases. Also the insights gained should be valuable for further understanding of the diseases at molecular levels and should lead to development of new biomarkers, novel diagnostic tools and more effective therapeutic drugs to treat the clinical problems raised by these devastating diseases.

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 The Role and Origin of Microglia in Retinal Neurodegenerative Disorders written by Bo Peng and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "The Role and Origin of Microglia in Retinal Neurodegenerative Disorders" by Bo, Peng, 彭勃, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Microglia are the mononuclear phagocytes in the central nervous system (CNS), which constitute the first defense line of the innate immune system. In neurodegenerative disorders, microglia react rapidly and exert protective roles by scavenging pathogens and cell debris. However, the over-activated microglia in chronic neurodegenerative disorders produce pro-inflammatory cytokines and exacerbate neuronal loss. Thus, a dual role of microglia complicates the microglial contribution to neurodegeneration. In the present studies, we investigated the role of microglia in retinal neurodegenerative disorders. We first studied the role of microglial activation in retinitis pigmentosa (RP), an inherited photoreceptor-degenerative disease. In some RP patients, rod-specific genetic mutations lead to rod degeneration followed by cone death. It has been previously shown that microglia respond to pathological disruptions and become activated in RP. However, the role of microglial activation in RP remains elusive. In this study, we investigated the contribution of microglial activation to photoreceptor degeneration in the rd10 mouse model of RP. First, we found microglial activation was an early event prior to photoreceptor death in RP retinas. Pharmacological suppression of microglial activation by minocycline ameliorated photoreceptor degeneration preserved photoreceptor structure and improved retinal function and visual behavior in the rd10 mouse. Second, we determined that the neuroprotective effects of minocycline were exerted via both anti-inflammatory and anti-apoptotic mechanisms. Third, we found that Cx3cr1 deficiency enhanced microglial neurotoxicity and subsequently accelerated photoreceptor loss in rd10 mice, suggesting that the fractalkine/Cx3cr1 signaling pathway might protect microglial from activation. Collectively, we concluded that suppression of microglial activation could be a potential therapeutic approach to the treatment of human RP. Microglia respond to neural insults by rapidly changing their phenotype and contributing to inflammation. However, the origin of activated microglia in the CNS is hotly debated. In the other study, we investigated the origin of activated microglia in the optic nerve transection (ONT) model. The ONT induces the retrograde degeneration of retinal ganglion cells (RGCs). In response to RGC degeneration, retinal microglia were activated and exhibited a rod microglia phenotype, which displayed sausage-shaped cell bodies and slender processes and aligned parallelly with the axon bundles of RGCs. We first characterized temporal and spatial appearances of rod microglia in the ONT model. We found that rod microglia were capable of phagocytosing RGC debris. Moreover, we found that retinal resident microglia rather than bone-marrow-derived precursors were the major contributor to microgliosis. Collectively, this study sheds light on the function and origin of activated microglia in neurodegeneration, which may facilitate therapeutic interventions aiming at restraining the neuroinflammation in neurodegenerative disorders. Subjects: Retinitis pigmentosa Retinal degeneration Microglia

Download or read book Clinical immunology written by and published by Elsevier Health Sciences. This book was released on 2008 with total page 1578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Coherence Tomography written by G. Coscas and published by Karger Medical and Scientific Publishers. This book was released on 2014-02-27 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its many advantages optical coherence tomography (OCT) has revolutionized the way in which retinal diseases are screened and managed and how treatments are monitored. In this volume the latest developments and findings are presented by experts in their respective fields. After a short introduction covering the available equipment and the basic techniques, the imaging features of various pathological findings in retinal diseases are presented. The topics cover the outer layers including new modalities for choroid imaging, out-layer diseases such as the various types of macular degeneration, retinal diseases such as diabetic retinopathy and vascular occlusion, and retina and vitreous interface pathologies. The final chapters are dedicated to the practicality of using OCT for the pre- and postsurgical evaluation of the posterior segment and for the differential diagnosis of vitreoretinal diseases as well as in the management of patients with retinal and neuro-ophthalmological diseases. Making the essentials of the recently held ESASO course on OCT available in one volume, this publication is a must-read for experienced as well as trainee ophthalmologists who need to use OCT in their daily practice.

Download or read book Handbook of Nutrition Diet and the Eye written by Victor R. Preedy and published by Academic Press. This book was released on 2019-06-11 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Nutrition, Diet, and the Eye, Second Edition, thoroughly addresses common features and etiological factors on how dietary and nutritional factors affect the eye. The ocular system is perhaps one of the least studied organs in diet and nutrition, yet the consequences of vision loss are devastating. There are a range of ocular defects that have either their origin in nutritional deficiencies/excess or have been shown to respond favorably to nutritional components. Featuring a new section on animal model studies where both the ocular problem and dietary remedies can be varied, there are also new chapters on dietary supplements. Serves as a foundational collection for neuroscience, neurology and nutrition researchers, illustrating the importance of nutrition and diet in eye health and function Provides a common language for readers to discuss how nutritional factors and related diseases and syndromes affect the eye Features new chapters on infectious diseases of the eye where nutrition is a factor Discusses animal model studies, dietary supplements, natural dietary extracts from around the world, and age-related changes in ocular health

Download or read book Retinal Pigment Epithelium in Health and Disease written by Alexa Karina Klettner and published by Springer Nature. This book was released on 2020-01-01 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a contemporary resource on one of the major players in retinal diseases – the Retinal Pigment Epithelium (RPE). Throughout the book, the physiological and the pathological function of the RPE are covered on equal terms, to help readers to understand the RPE as a whole. Moreover, the development of RPE in diagnostics and therapy are covered, as well as some practical knowledge about RPE experimental models. Retinal Pigment Epithelium in Health and Disease highlights new findings of RPE research and includes the state-of-the-art knowledge of each RPE topic presented. This important feature sets this book apart from other publications, with the chapters following a design which leads from the general to the specific, to give a precise collection of the facts known. The chapters are written by well-known experts that are currently active in the field as consultants, basic scientists, and group leaders, providing expert guidance on the current aspects and future outlooks of this topic.

Download or read book White Matter Diseases written by Massimo Filippi and published by Springer Nature. This book was released on 2020-02-13 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides cutting-edge information on the epidemiology, etiopathogenesis, clinical manifestations, diagnostic procedures and treatment approaches for the main white matter (WM) disorders of the central nervous system (CNS). WM lesions are associated with many neurological conditions, and with aging. The diagnostic work-up of neurological diseases characterized by the presence of these lesions has changed dramatically over the past few years. This is mainly due on the one hand to the discovery of specific pathogenetic factors in some of these conditions, and on the order to the optimized use of diagnostic tools. All of this has resulted in new diagnostic algorithms, and in the identification of new neurological conditions. The book offers neurologists essential guidance in the diagnosis and treatment of the most frequent WM conditions, promoting their correct and cost-saving diagnosis and management. By integrating neurological, laboratory and imaging concepts with the demands of accurate diagnosis, this reference guide provides a state-of-the-art overview of the current state of knowledge on these conditions, as well as practical guidelines for their diagnosis and treatment.

Download or read book The Retina in Health and Disease written by Maurice Ptito and published by Mdpi AG. This book was released on 2021-12-27 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vision is the most important sense in higher mammals. The retina is the first step in visual processing and the window to the brain. It is not surprising that problems arising in the retina lead to moderate to severe visual impairments. We offer here a collection of reviews as well as original papers dealing with various aspects of retinal function as well as dysfunction. New approaches in retinal research are described, such as the expression and localization of the endocannabinoid system in the normal retina and the role of cannabinoid receptors that could offer new avenues of research in the development of potential treatments for retinal diseases. Moreover, new insights are offered in advancing knowledge towards the prevention and cure of visual pathologies, mainly AMD, RP, and diabetic retinopathy.

Download or read book Optical Coherence Tomography in Multiple Sclerosis written by Axel Petzold and published by Springer. This book was released on 2018-02-21 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a clinical context to optical coherence tomography (OCT) findings, while considering the differential diagnosis and providing patient management guidance. Relevant anatomical and technical aspects are discussed, followed by a pragmatic illustration of the use of OCT for the clinical spectrum of multiple sclerosis and optic neuritis, and finishing with information on monitoring ocular side effects of recently approved disease-modifying treatments in multiple sclerosis. Optical Coherence Tomography in Multiple Sclerosis: Clinical Applications is aimed at clinical neurologists working with patients suffering from MS and general neurologists who see patients with visual symptoms in their daily practice. Ophthalmologists sharing clinical responsibilities with neurologists for patients under disease-modifying treatments will also find the book of interest.

Download or read book Recent Advances in NGF and Related Molecules written by Laura Calzà and published by Springer. This book was released on 2022-09-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than fifty years after its initial discovery by Rita Levi Montalcini and Stanley Cohen and the proposal of the neurotrophic theory, nerve growth factor (NGF) has become the prototype of a family of biologically active molecules called neurotrophic factors (NTFs). This book addresses important advances in NTF research, from basic science to clinical medicine. It focuses mainly on NGF, but also includes individual chapters dealing with the brain-derived neurotrophic factor (BDNF) and ligands of the glial cell line-derived neurotrophic factor (GDNF) family, which have attracted increasing interest in the neuroscience community because of their diverse effects in the normal and diseased brain. In the first part of the book, the authors provide the necessary background for the following chapters and discuss the basic mechanisms and pathways of NGF signal transduction. In the following sections, they then examine the regenerative activity and neuroprotective capacity of NGF during development and in normal and diseased tissues in adulthood and discuss the role of NGF in Alzheimer's disease and nociception. In addition, the role of NGF in processing sensory information and its influence on behavior is further discussed. The book concludes with an overview of the diagnostic and therapeutic potential of NTF in psychiatric disorders and obesity management, as well as a highlight of NGF research in veterinary medicine. Many of the authors of this volume participated in the Second International Rita Levi-Montalcini Meeting, held in Bologna, Italy, in 2019. The book covers a wide range of important topics in past and current NTF research and will appeal to basic researchers and clinicians alike.

Download or read book Choroidal Disorders written by Jay Chhablani and published by Academic Press. This book was released on 2017-05-31 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Choroidal Disorders provides an overview on various chorioretinal disorders with a special emphasis on choroidal imaging. As our understanding of the choroid has significantly improved with the development of advanced optical coherence tomography (OCT) and its role in posterior segment diseases is gaining new significance, this book focuses on the related improvements, diagnostic capabilities, management and prognosis of various chorioretinal disorders. It covers conventional techniques, such as ultrasonography and indocyanine green angiography as well as the most advanced techniques, including enhanced depth imaging OCT, swept source OCT, and OCT angiography. Concise overview of various chorioretinal disorders, with special emphasis on choroidal imaging Written for practitioners and researchers in sensory systems (vision), ophthalmologists, and retina specialists Covers the most advanced imaging techniques in choroidal disorders, such as enhanced depth imaging OCT, swept source OCT, and OCT angiography

Download or read book Clinical Significance of C reactive Protein written by Waliza Ansar and published by Springer Nature. This book was released on 2020-12-17 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the latest developments in the field the acute phase protein (APP), C-reactive protein or CRP in different diseases, highlighting the structural and functional aspects of CRP in disease biology. Divided into 5 sections, the book examines important topics such as the role of CRP in neurodegenerative, cardiac and parasitic diseases, as well as in cancer and inflammatory bowel disease, and the expression of CRP in pediatric respiratory diseases. In addition it discusses the clinical role of CRP in diagnostics and therapeutics, sepsis, ICU and ITU patients, and also as a primary marker for inflammation. Given its scope, this book will appeal to scholars in various fields of medicine and biology.

Download or read book Diseases of the Brain Head and Neck Spine 2020 2023 written by Juerg Hodler and published by Springer Nature. This book was released on 2020-02-14 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book offers an essential overview of brain, head and neck, and spine imaging. Over the last few years, there have been considerable advances in this area, driven by both clinical and technological developments. Written by leading international experts and teachers, the chapters are disease-oriented and cover all relevant imaging modalities, with a focus on magnetic resonance imaging and computed tomography. The book also includes a synopsis of pediatric imaging. IDKD books are rewritten (not merely updated) every four years, which means they offer a comprehensive review of the state-of-the-art in imaging. The book is clearly structured and features learning objectives, abstracts, subheadings, tables and take-home points, supported by design elements to help readers navigate the text. It will particularly appeal to general radiologists, radiology residents, and interventional radiologists who want to update their diagnostic expertise, as well as clinicians from other specialties who are interested in imaging for their patient care.