The Biochemistry of Amyloids in Neurodegenerative Diseases, Volume I

The Biochemistry of Amyloids in Neurodegenerative Diseases, Volume I PDF Author: Cláudio M. Gomes
Publisher: Frontiers Media SA
ISBN: 2889742512
Category : Science
Languages : en
Pages : 153

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Book Description

The Biochemistry of Amyloids in Neurodegenerative Diseases, Volume I

The Biochemistry of Amyloids in Neurodegenerative Diseases, Volume I PDF Author: Cláudio M. Gomes
Publisher: Frontiers Media SA
ISBN: 2889742512
Category : Science
Languages : en
Pages : 153

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Book Description


The biochemistry of amyloids in neurodegenerative diseases, volume II

The biochemistry of amyloids in neurodegenerative diseases, volume II PDF Author: Cláudio M. Gomes
Publisher: Frontiers Media SA
ISBN: 2832529798
Category : Science
Languages : en
Pages : 193

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Book Description


Alzheimer's Disease: Cellular and Molecular Aspects of Amyloid beta

Alzheimer's Disease: Cellular and Molecular Aspects of Amyloid beta PDF Author: J. Robin Harris
Publisher: Springer Science & Business Media
ISBN: 9780387232256
Category : Science
Languages : en
Pages : 442

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Book Description
To understand Alzheimer's disease (AD) is one of the major thrusts of present-day clinical research, strongly supported by more fimdamental cellular, biochemical, immunological and structural studies. It is these latter that receive attention within this book. This compilation of 20 chapters indicates the diversity of work currently in progress and summarizes the current state of knowledge. Experienced authors who are scientifically active in their fields of study have been selected as contributors to this book, in an attempt to present a reasonably complete survey of the field. Inevitably, some exciting topics for one reason or another have not been included, for which we can only apologize. Standardization of terminology is often a problem in science, not least in the Alzheimer field; editorial effort has been made to achieve standardization between the Chapters, but some minor yet acceptable personal / author variation is still present, i. e. P-amyloid/amyloid-P; Ap42/Apl-42/APi. 42! The book commences with a broad survey of the contribution that the range of available microscopical techniques has made to the study of Alzheimer's amyloid plaques and amyloid fibrillogenesis. This chapter also serves as an Introduction to the book, since several of the topics introduced here are expanded upon in later chapters. Also, it is significant to the presence of this chapter that the initial discovery of brain plaques, by Alois Alzheimer, utilized light microscopy, a technique that continues to be extremely valuable in present-day AD research.

Amyloid Proteins

Amyloid Proteins PDF Author: Einar M. Sigurdsson
Publisher: Springer Science & Business Media
ISBN: 1592598749
Category : Science
Languages : en
Pages : 390

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Book Description
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.

Bio-nanoimaging

Bio-nanoimaging PDF Author: Vladimir N Uversky
Publisher: Academic Press
ISBN: 0123978211
Category : Science
Languages : en
Pages : 556

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Book Description
Bio-Nanoimaging: Protein Misfolding & Aggregation provides a unique introduction to both novel and established nanoimaging techniques for visualization and characterization of misfolded and aggregated protein species. The book is divided into three sections covering: - Nanotechnology and nanoimaging technology, including cryoelectron microscopy of beta(2)-microglobulin, studying amyloidogensis by FRET; and scanning tunneling microscopy of protein deposits - Polymorphisms of protein misfolded and aggregated species, including fibrillar polymorphism, amyloid-like protofibrils, and insulin oligomers - Polymorphisms of misfolding and aggregation processes, including multiple pathways of lysozyme aggregation, misfolded intermediate of a PDZ domain, and micelle formation by human islet amyloid polypeptide Protein misfolding and aggregation is a fast-growing frontier in molecular medicine and protein chemistry. Related disorders include cataracts, arthritis, cystic fibrosis, late-onset diabetes mellitus, and numerous neurodegenerative diseases like Alzheimer's and Parkinson's. Nanoimaging technology has proved crucial in understanding protein-misfolding pathologies and in potential drug design aimed at the inhibition or reversal of protein aggregation. Using these technologies, researchers can monitor the aggregation process, visualize protein aggregates and analyze their properties. - Provides practical examples of nanoimaging research from leading molecular biology, cell biology, protein chemistry, biotechnology, genetics, and pharmaceutical labs - Includes over 200 color images to illustrate the power of various nanoimaging technologies - Focuses on nanoimaging techniques applied to protein misfolding and aggregation in molecular medicine

Brain Lipids in Synaptic Function and Neurological Disease

Brain Lipids in Synaptic Function and Neurological Disease PDF Author: Jacques Fantini
Publisher: Academic Press
ISBN: 0128004924
Category : Medical
Languages : en
Pages : 398

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Book Description
Lipids are the most abundant organic compounds found in the brain, accounting for up to 50% of its dry weight. The brain lipidome includes several thousands of distinct biochemical structures whose expression may greatly vary according to age, gender, brain region, cell type, as well as subcellular localization. In synaptic membranes, brain lipids specifically interact with neurotransmitter receptors and control their activity. Moreover, brain lipids play a key role in the generation and neurotoxicity of amyloidogenic proteins involved in the pathophysiology of neurological diseases. The aim of this book is to provide for the first time a comprehensive overview of brain lipid structures, and to explain the roles of these lipids in synaptic function, and in neurodegenerative diseases, including Alzheimer's, Creutzfeldt-Jakob's and Parkinson's. To conclude the book, the authors present new ideas that can drive innovative therapeutic strategies based on the knowledge of the role of lipids in brain disorders. - Written to provide a "hands-on" approach for readers - Biochemical structures explained with molecular models, and molecular mechanisms explained with simple drawings - Step-by-step guide to memorize and draw lipid structures - Each chapter features a content summary, up-to-date references for additional study, and a key experiment with an explanation of the technique

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”.

Nanobiotechnology in Neurodegenerative Diseases

Nanobiotechnology in Neurodegenerative Diseases PDF Author: Mahendra Rai
Publisher: Springer Nature
ISBN: 3030309304
Category : Medical
Languages : en
Pages : 403

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Book Description
This book focuses on neurodegenerative diseases which have become a major threat to human health. Neurodegenerative diseases are age related disorders and have become increasingly prevalent in the elderly population in recent years. Hence, there is an urgent need to study and develop new strategies and alternative methods for the treatment of neurodegenerative diseases. This book showcases the promises that nanobiotechnology brings in research, diagnosis, and treatment of neurodegenerative diseases. It is very beneficial for varied group of readers including nanotechnologists, biotechnologists, pharmacists, medical professionals, bioengineers, biochemists and researchers working in this field. Nanobiotechnology in Neurodegenerative Diseases include various chapters including neurodegeneration and neurodegenerative diseases, nanotechnology for the rescue of neurodegenerative diseases, promising potential of nanomaterials for diagnosis and therapy of neurodegenerative diseases, nanotechnology mediated nose-to-brain drug delivery, and formulation and characterization of intranasal nanoparticles of antiretroviral drugs.

The Biology of Alzheimer Disease

The Biology of Alzheimer Disease PDF Author: Dennis J. Selkoe
Publisher: Cold Spring Harbor Perspective
ISBN: 9781936113446
Category : Medical
Languages : en
Pages : 0

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Book Description
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.

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. ​