Tau Protein: Mechanisms from Health to Degeneration

Tau Protein: Mechanisms from Health to Degeneration PDF Author: Isabel Lastres-Becker
Publisher: Frontiers Media SA
ISBN: 2889719235
Category : Science
Languages : en
Pages : 299

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Tau Protein: Mechanisms from Health to Degeneration

Tau Protein: Mechanisms from Health to Degeneration PDF Author: Isabel Lastres-Becker
Publisher: Frontiers Media SA
ISBN: 2889719235
Category : Science
Languages : en
Pages : 299

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Book Description


Tau Biology

Tau Biology PDF Author: Akihiko Takashima
Publisher: Springer Nature
ISBN: 9813293586
Category : Medical
Languages : en
Pages : 405

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Book Description
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.

Tau oligomers

Tau oligomers PDF Author: Jesus Avila
Publisher: Frontiers E-books
ISBN: 288919261X
Category : Medicine (General)
Languages : en
Pages : 114

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Book Description
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”.

Posttranslational Modification of Proteins

Posttranslational Modification of Proteins PDF Author: Christopher Walsh
Publisher: Roberts and Company Publishers
ISBN: 9780974707730
Category : Science
Languages : en
Pages : 524

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Book Description
Covering the major classes of posttranslational modifications, Posttranslational Modification of Proteins is the first comprehensive treatment of this burgeoning area of proteome diversification.

Proteopathic Seeds and Neurodegenerative Diseases

Proteopathic Seeds and Neurodegenerative Diseases PDF Author: Mathias Jucker
Publisher: Springer Science & Business Media
ISBN: 3642354912
Category : Medical
Languages : en
Pages : 163

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Book Description
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. ​

Neuropathology of Neurodegenerative Diseases

Neuropathology of Neurodegenerative Diseases PDF Author: Gabor G. Kovacs
Publisher: Cambridge University Press
ISBN: 1316337650
Category : Medical
Languages : en
Pages : 320

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Book Description
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.

Functional Neurobiology of Aging

Functional Neurobiology of Aging PDF Author: Patrick R. Hof
Publisher: Elsevier
ISBN: 008052558X
Category : Medical
Languages : en
Pages : 989

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Book Description
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

Neuroanatomy and Pathology of Sporadic Alzheimer's Disease

Neuroanatomy and Pathology of Sporadic Alzheimer's Disease PDF Author: Heiko Braak
Publisher: Springer
ISBN: 3319126792
Category : Medical
Languages : en
Pages : 168

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Book Description
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

Alzheimer's Disease

Alzheimer's Disease PDF Author: George Perry
Publisher: IOS Press
ISBN: 1614991537
Category : Medical
Languages : en
Pages : 486

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Book Description
This volume is a companion to the highly successful book published in association with the Journal of Alzheimer's Disease (JAD) on the centennial of Alzheimer's discovery: "Alzheimer's Disease: A Century of Scientific and Clinical Research". Instead of looking back, this collection, "Alzheimer's Disease: Advances for a New Century", will look forward. Using scientometric analysis the most promising developments since the Alzheimer Centennial in 2006 have been substantiated. While prior trends and advances in genetics, amyloid-β, tau, neuropathology, and oxidative stress continue as active areas, emergent areas impacting the transition from normal cognition to Alzheimer's disease such as diagnostic imaging, biomarkers, metabolism, and lifestyle (areas conceived only a few years ago) now dominate the debate.Invited contributors have summarized their landmark publications identified by our analysis and have put them into perspective, explaining the impetus behind the work, the contribution of the results to the field, and who played a role in the work.

Etiology of Parkinson's Disease

Etiology of Parkinson's Disease PDF Author: Jonas H. Ellenberg
Publisher: CRC Press
ISBN: 9780824788230
Category : Medical
Languages : en
Pages : 600

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Book Description
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.