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 Tau Biology written by Akihiko Takashima and published by Springer Nature. This book was released on 2020-02-24 with total page 405 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 Tau Protein Mechanisms from Health to Degeneration written by Isabel Lastres-Becker and published by Frontiers Media SA. This book was released on 2022-01-03 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proteopathic Seeds and Neurodegenerative Diseases written by Mathias Jucker and published by Springer Science & Business Media. This book was released on 2013-03-27 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: The misfolding and aggregation of specific proteins is an early and obligatory event in many of the age-related neurodegenerative diseases of humans. The initial cause of this pathogenic cascade and the means whereby disease spreads through the nervous system, remain uncertain. A recent surge of research, first instigated by pathologic similarities between prion disease and Alzheimer’s disease, increasingly implicates the conversion of disease-specific proteins into an aggregate-prone b-sheet-rich state as the prime mover of the neurodegenerative process. This prion-like corruptive protein templating or seeding now characterizes such clinically and etiologically diverse neurological disorders as Alzheimer ́s disease, Parkinson’s disease, Huntington’s disease, amyotrophic lateral sclerosis, and frontotemporal lobar degeneration. Understanding the misfolding, aggregation, trafficking and pathogenicity of the affected proteins could therefore reveal universal pathomechanistic principles for some of the most devastating and intractable human brain disorders. It is time to accept that the prion concept is no longer confined to prionoses but is a promising concept for the understanding and treatment of a remarkable variety of diseases that afflict primarily our aging society. ​

Download or read book Functional Neurobiology of Aging written by Patrick R. Hof and published by Elsevier. This book was released on 2001-01-11 with total page 989 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some well-known age-related neurological diseases include Parkinson's disease, Alzheimer's disease, deafness, and blindness. Even more common are the problems of aging which are not due to disease but to more subtle impairments in neurobiological systems, including impairments in vision, memory loss, muscle weakening, and loss of reproductive functions, changes in body weight, and sleeplessness. As the average age of our society increases, diseases of aging continue to become more common, and conditions associated with aging need more attention by doctors and researchers. In 1991, patients over the age of 65 saw their doctors an average of eight times per year. Research funding is provided by the Neuroscience and Neuropsychology of Aging (NNA) Program, which is run by the National Institute on Aging. This book offers a comprehensive overview of all topics related to functional impairments which are related to the aging brain and nervous system. It is organized according to four general functions: movement, senses, memory, and neuroendocrine regulation. Written by the leading researchers in the field, this comprehensive work addresses both impairments associated with diseases and not associated with diseases, making it easier to understand the mechanisms involved. Functional Neurobiology of Aging is an important reference for professionals and students involved in aging research, as well as physicians who need to recognize and understand age-related impairments. - Organized by function, making it easy to find and understand the material - Addresses impairments both associated with diseases and not associated with diseases - Written by leading researchers in the field - Most comprehensive source of information on the neurobiology of aging

Download or read book Neuropathology of Neurodegenerative Diseases written by Gabor G. Kovacs and published by Cambridge University Press. This book was released on 2017-12-13 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide to the diagnosis of neurodegenerative diseases discusses modern molecular techniques, morphological classification, fundamentals of clinical symptomology, diagnostic pitfalls and immunostaining protocols. It is based on the proteinopathy concept of neurodegenerative disease, which has influenced classification and provides new strategies for therapy. Numerous high-quality images, including histopathology photomicrographs and neuroradiology scans, accompany the description of morphologic alterations and interpretation of immunoreactivities. Diagnostic methods and criteria are placed within recent developments in neuropathology, including the now widespread application of immunohistochemistry. To aid daily practice, the guide includes diagnostic algorithms and offers personal insights from experienced experts in the field. Special focus is given to the way brain tissue should be handled during diagnosis. This is a must-have reference for medical specialists and specialist medical trainees in the fields of pathology, neuropathology and neurology working with neuropathologic features of neurodegenerative diseases.

Download or read book Drug Discovery Approaches for the Treatment of Neurodegenerative Disorders written by Adeboye Adejare and published by Academic Press. This book was released on 2016-09-20 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drug Discovery Approaches for the Treatment of Neurodegenerative Disorders: Alzheimer's Disease examines the drug discovery process for neurodegenerative diseases by focusing specifically on Alzheimer's Disease and illustrating the paradigm necessary to ensure future research and treatment success. The book explores diagnosis, epidemiology, drug discovery strategies, current therapeutics, and much more to provide a holistic approach to the discovery, development, and treatment of Alzheimer's Disease. Through its coverage of the latest research in targeted drug design, preclinical studies, and mouse and rat models, the book is a must-have resource for all pharmaceutical scientists, pharmacologists, neuroscientists, and clinical researchers working in this area. It illustrates why these drugs tend to fail at the clinical stage, and examines Alzheimer's Disease within the overall context of improving the drug discovery process for the treatment of other neurodegenerative disorders. - Provides a compilation of chemical considerations required in drug discovery for the treatment of neurodegenerative disorders - Examines different classes of compounds currently being used in discovery and development stages - Explores in vitro and in vivo models with respect to their ability to translate these models to human conditions - Distills the most significant information across multiple areas of Alzheimer's disease research to provide a single, comprehensive, and balanced resource

Download or read book Neuroprotective Effects of Phytochemicals in Neurological Disorders written by Tahira Farooqui and published by John Wiley & Sons. This book was released on 2017-03-20 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phytochemicals are naturally occurring bioactive compounds found in edible fruits, plants, vegetables, and herbs. Unlike vitamins and minerals, phytochemicals are not needed for the maintenance of cell viability, but they play a vital role in protecting neural cells from inflammation and oxidative stress associated with normal aging and acute and chronic age-related brain diseases. Neuroprotective Effects of Phytochemicals in Neurological Disorders explores the advances in our understanding of the potential neuroprotective benefits that these naturally occurring chemicals contain. Neuroprotective Effects of Phytochemicals in Neurological Disorders explores the role that a number of plant-based chemical compounds play in a wide variety of neurological disorders. Chapters explore the impact of phytochemicals on neurotraumatic disorders, such as stroke and spinal cord injury, alongside neurodegenerative diseases such as Alzheimer's and Parkinson's Disease, as well as neuropsychiatric disorders such as depression and schizophrenia. The chapters and sections of this book provide the reader with a big picture view of this field of research. Neuroprotective Effects of Phytochemicals in Neurological Disorders aims to present readers with a comprehensive and cutting edge look at the effects of phytochemicals on the brain and neurological disorders in a manner useful to researchers, neuroscientists, clinical nutritionists, and physicians.

Download or read book Posttranslational Modification of Proteins written by Christopher Walsh and published by Roberts and Company Publishers. This book was released on 2006 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the major classes of posttranslational modifications, Posttranslational Modification of Proteins is the first comprehensive treatment of this burgeoning area of proteome diversification.

Download or read book Neuroanatomy and Pathology of Sporadic Alzheimer s Disease written by Heiko Braak and published by Springer. This book was released on 2014-12-11 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: As indicated by its title, this monograph deals chiefly with morphologically recognizable deviations from the normal anatomical condition of the human CNS. The AD-associated pathology is illustrated from its beginnings (sometimes even in childhood) to its final form, which is reached late in life. The AD process commences much earlier than the clinically recognizable phase of the disorder, and its timeline includes an extended preclinical phase. The further the pendulum swings away from the symptomatic final stages towards the early pathology, the more obvious the lesions become, although from a standpoint of severity they are more unremarkable and thus frequently overlooked during routine neuropathological assessment. For this reason, the authors deal with the hallmark lesions in the early phases of the AD process in considerable detail

Download or read book Neuroprotection in Alzheimer s Disease written by Illana Gozes and published by Academic Press. This book was released on 2016-12-30 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuroprotection in Alzheimer's Disease offers a translational point-of-view from both basic and clinical standpoints, putting it on the cusp for further clinical development with its emphasis on nerve cell protection, including the accumulation of knowledge from failed clinical trials and new advances in disease management. This book brings together the latest findings, both basic, and clinical, under the same cover, making it easy for the reader to obtain a complete overview of the state-of-the-field and beyond. Alzheimer's disease is the most common form of dementia, accounting for 60 to 80 percent of dementia cases. It is a progressive brain disease that slowly destroys memory, thinking skills, and eventually, even the ability to carry out the simplest tasks. It is characterized by death of synapses coupled to death nerve cells and brain degeneration which is manifested by loss of cognitive abilities. Understanding neuroprotection in Alzheimer's disease will pave the path to better disease management and novel therapeutics. - Comprehensive reference detailing neuroprotection in Alzheimer's Disease, with details on nerve cell protection and new advances in disease management - Combines the knowledge and points-of-view of both medical doctors and basic scientists, putting the subject at the forefront for further clinical development - Edited by one of the leading researchers in Alzheimer's Disease

Download or read book Cerebrospinal Fluid Biomarkers written by Charlotte E. Teunissen and published by Humana. This book was released on 2022-05-19 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers the latest methods used in clinical neurochemistry laboratories for both clinical practice and research. Chapters in this book discuss topics such as techniques for cerebrospinal fluid (CSF) collection, pre-analytical processing, and basic CSF analysis; an examination of biomarkers including ELISA and automated immunochemical assays for amyloid and tau markers for Alzheimer’s disease; the analysis of neurofilaments by digital ELISA; and an example of successful novel immunoassay development. In the Neuromethods series style, chapters include the kind of detail and key advice from the specialists needed to get successful results in your laboratory. Cutting-edge and thorough, Cerebrospinal Fluid Biomarkers is a valuable resource for clinicians and researchers to use in CSF labs and CSF courses.

Download or read book Autophagy Cancer Other Pathologies Inflammation Immunity Infection and Aging written by M. A. Hayat and published by Academic Press. This book was released on 2016-12-28 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Autophagy: Cancer, Other Pathologies, Inflammation, Immunity, Infection, and Aging is an eleven volume series that discusses in detail all aspects of autophagy machinery in the context of health, cancer, and other pathologies. Autophagy maintains homeostasis during starvation or stress conditions by balancing the synthesis of cellular components and their deregulation by autophagy. This series discusses the characterization of autophagosome-enriched vaccines and its efficacy in cancer immunotherapy. Autophagy serves to maintain healthy cells, tissues, and organs, but also promotes cancer survival and growth of established tumors. Impaired or deregulated autophagy can also contribute to disease pathogenesis. Understanding the importance and necessity of the role of autophagy in health and disease is vital for the studies of cancer, aging, neurodegeneration, immunology, and infectious diseases. Comprehensive and forward-thinking, these books offer a valuable guide to cellular processes while also inciting researchers to explore their potentially important connections. - Presents the most advanced information regarding the role of the autophagic system in life and death - Examines whether autophagy acts fundamentally as a cell survivor or cell death pathway or both - Introduces new, more effective therapeutic strategies in the development of targeted drugs and programmed cell death, providing information that will aid in preventing detrimental inflammation - Features recent advancements in the molecular mechanisms underlying a large number of genetic and epigenetic diseases and abnormalities, including atherosclerosis and CNS tumors, and their development and treatment - Includes chapters authored by leaders in the field around the globe—the broadest, most expert coverage available

Download or read book Neurotoxicity of Aluminum written by Qiao Niu and published by Springer. This book was released on 2018-10-12 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the scientific literature and the authors’ own research linking aluminum neurotoxicity with cognitive impairment and Alzheimer’s disease (AD). It focuses on aluminum levels in the brain, region-specific and subcellular distribution, and its relation to neurofibrillary tangles and amyloid beta. Further, the book stresses the importance of aluminum’s complex speciation chemistry in relation to biology, and details aluminum’s mechanism in oxidative stress and cell death, especially in connection with apoptosis and necroptosis. The electrophysiological variation and synaptic plasticity induced by aluminum are covered, while the metal’s debatable role in AD and the cross-talk between aluminum and genetic susceptibility are also discussed. In closing, the book reviews the neurotoxic effects of aluminum and its important role in the pathogenesis of AD. Given its depth of coverage, the book provides readers with a systematic summary of aluminum neurotoxicity.

Download or read book Etiology of Parkinson s Disease written by Jonas H. Ellenberg and published by CRC Press. This book was released on 1995-03-01 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive reference provides a detailed overview of current concepts regarding the cause of Parkinson's disease-emphasizing the issues involved in the design, implementation, and analysis of epidemiological studies of parkinsonism.

Download or read book Quality Control of Cellular Protein in Neurodegenerative Disorders written by Uddin, Md. Sahab and published by IGI Global. This book was released on 2020-02-14 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protein misfolding and aggregation are hallmarks of several neurodegenerative proteinopathies. Though multiple factors like aging, oxidative stress, mitochondrial dysfunction, proteotoxic insults, genetic inconsistency, etc. are responsible for the dysfunction of the neuronal protein quality control system, targeting protein quality control has become an auspicious approach to halt the propagation of neurodegeneration. Quality Control of Cellular Protein in Neurodegenerative Disorders provides diverse aspects exploring the role of the protein quality control in neurodegenerative disorders and potential therapeutic strategies to combat the development and propagation of neurodegeneration. Featuring coverage on a broad range of topics such as molecular chaperones, protein misfolding, and stress signaling, this book is ideally designed for neurobiologists, neuropsychologists, neurophysiologists, medical professionals, neuropathologists, researchers, academicians, students, and practitioners engaged in studies of the protein quality control system in neuronal cells.

Download or read book Alzheimer s Disease Drug Development written by Jeffrey Cummings and published by Cambridge University Press. This book was released on 2022-03-31 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a definitive overview of the complex ecosystem facilitating Alzheimer's Disease drug research and development. Demonstrates a drug's journey from in the lab, clinical trial testing, regulatory review, and marketing by pharmaceutical companies. Details the use of artificial intelligence, clinical trial management, and financing models.