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 The Neurobiology of Alzheimer s Disease written by Study Group on the Pharmacology of Memory Disorders Associated with Aging. Meeting and published by . This book was released on 1996 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall goal of the International Study Group on the Pharmacology of Memory Disorders Associated with Ageing is to point out discoveries that shed light on the potential causes of Alzheimer's disease, its pathogenesis, and the biological mechanisms that could underlie its cure. This eighth meeting in the series, aims to stimulate research in dementia and increase the transfer of information from the basic sciences to physicians and the pharmaceutical industry."

Download or read book Cyclin Dependent Kinase 5 Cdk5 written by Nancy Y. Ip and published by Springer Science & Business Media. This book was released on 2009-02-28 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyclin Dependent Kinase 5 provides a comprehensive and up-to-date collection of reviews on the discovery, signaling mechanisms and functions of Cdk5, as well as the potential implication of Cdk5 in the treatment of neurodegenerative diseases. Since the identification of this unique member of the Cdk family, Cdk5 has emerged as one of the most important signal transduction mediators in the development, maintenance and fine-tuning of neuronal functions and networking. Further studies have revealed that Cdk5 is also associated with the regulation of neuronal survival during both developmental stages and in neurodegenerative diseases. These observations indicate that precise control of Cdk5 is essential for the regulation of neuronal survival. The pivotal role Cdk5 appears to play in both the regulation of neuronal survival and synaptic functions thus raises the interesting possibility that Cdk5 inhibitors may serve as therapeutic treatment for a number of neurodegenerative diseases.

Download or read book Apolipoprotein E and Alzheimer s Disease written by A.D. Roses and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is now considerable genetic evidence that the type 4 allele of the apolipoprotein E gene is a major susceptibility factor associated with late-onset Alzheimer's disease, the common form of the disease defined as starting after sixty years of age. The role of apolipoprotein E in normal brain metabolism and in the pathogenesis of Alzheimer's disease are new and exciting avenues of research. This book, written by the most outstanding scientists in this new filed, is the first presentation of results concerning the implications of apolipoprotein E on the genetics, cell biology, neuropathology, biochemistry, and therapeutic management of 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 Tau Protein written by Caroline Smet-Nocca and published by Humana. This book was released on 2024-04-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores the latest advancements and techniques to study Tau protein that include basic and advanced methods and protocols from in vitro assays to in vivo models that address the molecular and functional aspects of tau physiopathology and many of its related technical issues. The chapters in this book are organized into five parts: Part One describes conformational and functional studies of native tau protein using wet and non-wet lab protocols. Part Two looks at in vitro methods to monitor or control the formation of Tau oligomers and fibrils, and the fibrillization process. Part Three provides protocols for the characterization and in vitro introduction of post-translational modifications in Tau protein for further functional studies. Part Four describes analytical tools for the detection of Tau proteins under various forms, factors associated with Tau pathology, and MAPT gene studies. Finally, Part Five explores cellular and in vivo models for the investigations of Tau physiopathology. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and comprehensive, Tau Proteins: Methods and Protocols, Second Edition is a valuable tool for any researcher interested in learning more about this important and developing field related to Tau protein as a relevant and attractive target for neurodegeneration therapies.

Download or read book Neuronal Cytoskeleton written by Hirokawa and published by CRC Press. This book was released on 1994-01-12 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the primary functions of microtubule-associated proteins (MAPs) such as MAP2 and tau in neuronal morphogenesis, as well as relationships between neuronal differentiation and the expression of neuronal intermediate filaments (nestin, alpha internexin, and neurofilament triplet proteins). It emphasizes the importance of several cytoskeletal proteins for neuronal differentiation and morphogenesis, organelle transport, and synaptic functions. The book considers the involvement of tau MAPs in the formation of paired helical filaments in Alzheimer's disease, and it examines the mechanisms of organelle transports and molecular motors such as kinesin, braindynein, and kinesin superfamily proteins. Cytoskeletal proteins involved in synaptic formation and transmitter release and new synaptic junctional-associated proteins are explored as well.

Download or read book Alzheimer s Disease written by Thimmaiah Govindaraju and published by Royal Society of Chemistry. This book was released on 2022-01-04 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alzheimer’s disease is an increasingly common form of dementia and despite rising interest in discovery of novel treatments and investigation into aetiology, there are no currently approved treatments that directly tackle the causes of the condition. Due to its multifactorial pathogenesis, current treatments are directed against symptoms and even precise diagnosis remains difficult as the majority of cases are diagnosed symptomatically and usually confirmed only by autopsy. Alzheimer’s Disease: Recent Findings in Pathophysiology, Diagnostic and Therapeutic Modalities provides a comprehensive overview from aetiology and neurochemistry to diagnosis, evaluation and management of Alzheimer's disease, and latest therapeutic approaches. Intended to provide an introduction to all aspects of the disease and latest developments, this book is ideal for students, postgraduates and researchers in neurochemistry, neurological drug discovery and Alzheimer’s disease.

Download or read book Insights into Human Neurodegeneration Lessons Learnt from Drosophila written by Mousumi Mutsuddi and published by Springer Nature. This book was released on 2019-12-05 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is aimed at generating an updated reservoir of scientific endeavors undertaken to unravel the complicated yet intriguing topic of neurodegeneration. Scientists from Europe, USA and India who are experts in the field of neurodegenerative diseases have contributed to this book. This book will help readers gain insight into the recent knowledge obtained from Drosophila model, in understanding the molecular mechanisms underlying neurodegenerative disorders and also unravel novel scopes for therapeutic interventions. Different methodologies available to create humanized fly models that faithfully reflects the pathogenicities associated with particular disorders have been described here. It also includes information on the exciting area of neural stem cells. A brief discussion on neurofibrillary tangles, precedes the elaborate description of lessons learnt from Drosophila about Alzheimer's, Parkinson’s, Spinomuscular Atrophy, Huntington’s diseases, RNA expansion disorders and Hereditary Spastic Paraplegia. We have concluded the book with the use of Drosophila for identifying pharmacological therapies for neurodegenerative disorders. The wide range of topics covered here will not only be relevant for beginners who are new to the concept of the extensive utility of Drosophila as a model to study human disorders; but will also be an important contribution to the scientific community, with an insight into the paradigm shift in our understanding of neurodegenerative disorders. Completed with informative tables and communicative illustrations this book will keep the readers glued and intrigued. We have comprehensively anthologized the lessons learnt on neurodegeneration from Drosophila and have thus provided an insight into the multidimensional aspects of pathogenicities of majority of the neurodegenerative disorders.

Download or read book Dementia with Lewy Bodies written by John O'Brien and published by CRC Press. This book was released on 2005-11-29 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a noticeable gap in the market for a new text solely focused on Dementia with Lewy Bodies, this book discusses cutting-edge topics covering the condition from diagnosis to management, as well as what is known about the neurobiological changes involved. With huge progress having been made over the last decade in terms of the disorder

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 Amyloid Proteins written by Einar M. Sigurdsson and published by Springer Science & Business Media. This book was released on 2008-02-02 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: A proven collection of readily reproducible techniques for studying amyloid proteins and their involvement in the etiology, pathogenesis, diagnosis, and therapy of amyloid diseases. The contributors provide methods for the preparation of amyloid and its precursors (oligomers and protofibrils), in vitro assays and analytical techniques for their study, and cell culture models and assays for the production of amyloid proteins. Additional chapters present readily reproducible techniques for amyloid extraction from tissue, its detection in vitro and in vivo, as well as nontransgenic methods for developing amyloid mouse models. The protocols follow the successful Methods in Molecular BiologyTM series format, each offering step-by-step laboratory instructions, an introduction outlining the principle behind the technique, lists of the necessary equipment and reagents, and tips on troubleshooting and avoiding known pitfalls.

Download or read book Experimental Epilepsy written by and published by Elsevier. This book was released on 1965-01-01 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental Epilepsy

Download or read book The Prion Protein written by Jorg Tatzelt and published by . This book was released on 2010 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: A conformational transition of the cellular prion protein (PrPC) into an aberrantly folded isoform designated scrapie prion protein (PrPSc) is the hallmark of a variety of neurodegenerative disorders collectively called prion diseases. They include Creutzfeldt-Jakob disease and Gerstmann-Stäussler-Scheinker syndrome in humans, scrapie in sheep, bovine spongiform encephalopathy (BSE) in cattle and chronic wasting disease (CWD) in free-ranging deer. In contrast to the deadly properties of misfolded PrP, PrPC seems to possess a neuroprotective activity. More-over, animal models indicated that the stress-protective activity of PrPC and the neurotoxic effects of PrPSc are somehow interconnected. In this timely book, leading scientists in the field have come together to highlight the apparently incongruous activities of different PrP conformers. The articles outline current research on celluar pathways implicated in the formation and signaling of neurotoxic and physiological PrP isoforms and delineate future research direction. Topics covered include the physiologcial activity of PrPC and its possible role as a neurotrophic factor, the finding that aberrant PrP conformers can cause neurodegeneration in the absence of infectious prion propagation, the requirement of the GPI anchor of PrPC for the neurotoxic effects of scrapie prions, the pathways implicated in the formation and neurotoxic properties of cytosolically localized PrP, the impact of metal ions on the processing of PrP, and the role of autophagy in the propagation and clearance of PrPSc. The book is fully illustrated and chapters include comprehensive reference sections. Essential reading for scientists involved in prion research.

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 The Biology of Alzheimer Disease written by Dennis J. Selkoe and published by Cold Spring Harbor Perspective. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alzheimer disease causes the gradual deterioration of cognitive function, including severe memory loss and impairments in abstraction and reasoning. Understanding the complex changes that occur in the brain as the disease progressesincluding the accumulation of amyloid plaques and neurofibrillary tanglesis critical for the development of successful therapeutic approaches. Written and edited by leading experts in the field, this collection from Cold Spring Harbor Perspectives in Medicine includes contributions covering all aspects of Alzheimer disease, from our current molecular understanding to therapeutic agents that could be used to treat and, ultimately, prevent it. Contributors discuss the biochemistry and cell biology of amyloid -protein precursor (APP), tau, presenilin, -secretase, and apolipoprotein E and their involvement in Alzheimer disease. They also review the clinical, neuropathological, imaging, and biomarker phenotypes of the disease; genetic alterations associated with the disorder; and epidemiological insights into its causation and pathogenesis. This comprehensive volume, which includes discussions of therapeutic strategies that are currently used or under development, is a vital reference for neurobiologists, cell biologists, pathologists, and other scientists pursuing the biological basis of Alzheimer disease, as well as investigators, clinicians, and students interested in its pathogenesis, treatment, and prevention.