Download or read book Exosomes in Brain Health and Disease written by Konstantin Glebov and published by Frontiers Media SA. This book was released on 2022-06-06 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exosomes Based Drug Delivery Strategies for Brain Disorders written by Neeraj Mishra and published by Springer Nature. This book was released on with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mesenchymal Stem Cell Derived Exosomes written by Yaoliang Tang and published by Academic Press. This book was released on 2015-09-02 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mesenchymal stem cell-derived exosomes are at the forefront of research in two of the most high profile and funded scientific areas – cardiovascular research and stem cells. Mesenchymal Stem Cell Derived Exosomes provides insight into the biofunction and molecular mechanisms, practical tools for research, and a look toward the clinical applications of this exciting phenomenon which is emerging as an effective diagnostic. Primarily focused on the cardiovascular applications where there have been the greatest advancements toward the clinic, this is the first compendium for clinical and biomedical researchers who are interested in integrating MSC-derived exosomes as a diagnostic and therapeutic tool. Introduces the MSC-exosome mediated cell-cell communication Covers the major functional benefits in current MSC-derived exosome studies Discusses strategies for the use of MSC-derived exosomes in cardiovascular therapies
Download or read book Cerebral Ischemia written by Ryszard M. Pluta and published by . This book was released on 2021 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerebral ischemia is one of the most common causes of dementia, which develops in more than half of patients after an ischemic episode. The main mechanism is thought to be pathological changes in the hippocampus, especially in the CA1 area, underlying episodic memory impairment, which is the earliest and most important clinical symptom of post-ischemic dementia. The 13 chapters of this book present a new picture of ischemic brain disease, synthesizing the latest data on disease mechanisms, care for patients with this disease, and potential therapeutic targets. The authors present the characteristics of cerebral ischemia from pregnancy and childhood through adolescence to adulthood. The first two chapters provide a snapshot of the anatomy of the cerebral cortex and the hippocampus, the most affected brain structures after cerebral ischemia. This is followed by nine chapters that present a comprehensive view of the pathological mechanisms of cerebral ischemia, and how a deep understanding of these pathomechanisms hold the key for the discovery and development of novel therapies to help patients affected by cerebral ischemia. Chapter 12 shares real-life experience and challenges of rehabilitating patients into the community after cerebral ischemia, and chapter 13 analyzes the social risk variations, including gender inequality, in the reintegration of post-ischemic stroke patients. Although primarily aimed at scientists and clinicians, the contents of the book will be of interest to all those who are interested in cerebral ischemia, including patients and their caregivers.
Download or read book The Propagation of Neurodegenerative Diseases by Inflammation and Exosomes written by Valerie Sackmann and published by Linköping University Electronic Press. This book was released on 2019-10-16 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alzheimer’s disease (AD) and Parkinson’s disease (PD) are the two most common neurodegenerative diseases with rates increasing along with the ageing global population. Despite best efforts, we still do not understand the etiopathogenesis of these diseases and there are no effective disease-modifying treatments. Cognitive deficiencies or motor complications that emerge during AD and PD are thought to be the result of the accumulation of misfolded, aggregate-prone proteins, such as amyloid-? (A?) and tau or ?-synuclein (?-syn), respectively. Growing evidence suggests that prefibrillar oligomers of A? and ?-syn (oA? and o?-syn) are key contributors to the progression of these diseases. The progressive accumulation of these proteins leads to a gradual spread of pathology throughout interconnected brain regions, but the mechanisms by which this spreading occurs are still largely unknown. Neuroinflammation has been recognised as an important contributor to neurodegenerative disease. It is hypothesised that a pro-inflammatory environment initiated by the innate immune system, either through activation from A? itself or indirectly through neuronal injury signals in AD. These phenomena are thought to either cause or accelerate AD, such that an anti-inflammatory approach may be neuroprotective. In paper I, we investigated whether different inflammatory environments affected the transfer of oA? between neuron-like cells, in addition to investigating inter- and intracellular protein changes. This study demonstrated that an anti-inflammatory environment reduces the transfer of oA? between cells. We also provide evidence that these cells begin to take on the “phenotype” of the inflammatory milieu, while also demonstrating that the expression profile of endosomal/lysosomal and protein trafficking proteins is altered during these conditions. Small extracellular vesicles called exosomes, which are key players in cell to cell communication, have been proposed to play an influential role in spreading neurodegenerative proteins between cells. Exosomes are small membranous vesicles that are formed by the inward budding of multivesicular bodies (MVBs). These MVBs can then merge with the plasma membrane to be released into the extracellular environment as vesicles, which serve as vehicles for transferring proteins, lipids, and mRNAs between cells. The ESCRT-dependent pathway is the most understood mechanism underlying exosome biogenesis. However, exosomes can also be formed through ESCRT-independent pathways, including through the hydrolysis of sphingomyelin by neutral sphingomyelinase 2 (nSMase2), which produces ceramide. Paper II investigated whether exosomes formed through an ESCRT-independent pathway plays a significant role in the transfer of o?-syn between neuron-like cells. As oxidative stress is a common feature in PD brains, which in turn dysregulates nSMase2 activity, we also tested our model under hypoxic conditions. Inhibition of nSMase2 significantly reduced the transfer of o?-syn between cells but also resulted in decreased ?-syn aggregation. Hypoxia did not influence o?-syn transfer, however, it significantly dysregulated the sphingolipid composition, which may be important for ?-syn binding to exosomes and exosome communication. During AD and PD, there is a noted reduction in the effectiveness of autophagy, a process critical to cellular proteostasis. Recent studies have uncovered shared regulatory mechanisms of exosome biogenesis and autophagy, suggesting that they are closely linked. Previous findings have shown that inhibition of autophagy in AD mice mediates A? trafficking through altering the secretion of A? in MVBs. To further study this effect, we investigated the interplay between autophagy and exosome secretion using ATG7 knock-out x APPNL-F knock-in AD mice in paper III. These autophagy-deficient AD mice had a reduced extracellular A? plaque load, but increased intracellular A?, which was found to be assembled into higher-ordered assemblies. While exosomal secretion was dysregulated in these mice, the amount of A? packaged into the exosomes was unchanged. Lastly, one of the biggest challenges in developing effective treatments for AD is the lack of early diagnosis of living patients. As the connection between exosomes and the spread of neurodegenerative proteins is still relatively new, there remains a diagnostic potential to be explored with exosomes. Paper IV aimed to develop a new diagnostic assay to detect oA? in exosomes isolated from human cerebrospinal fluid. Although exosomal oA? was readily detected in some of these samples, the assay’s sensitivity requires additional optimisation before it can be further validated for the clinic. In summary, the studies presented in this thesis have furthered our understanding of how inflammation, autophagy, and exosomes contribute to the intercellular transmission of AD and PD associated proteins. We have shown that an anti-inflammatory approach may slow down the progression of AD through reducing the transfer of oA? between cells. We also provide novel findings relating to the biogenesis of exosomes, which in turn affected the ability of exosomes to transmit neurodegenerative proteins between cells, and their association with autophagic processes. Finally, we have investigated the feasibility of exosomes as an early AD diagnostic marker. This work has helped to elucidate some of the mechanisms underlying the progression of neurodegenerative diseases, which may be useful targets for the investigation of new therapeutic avenues.
Download or read book Exosomes written by Larry Edelstein and published by Academic Press. This book was released on 2019-10-16 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exosomes: A Clinical Compendium is a comprehensive and authoritative account of exosomes in the context of biomarkers, diagnostics, and therapeutics across a wide spectrum of medical disciplines, as well as their role in cell-cell communication. It is intended to serve as a reference source for clinicians, physicians, and research scientists who wish to gain insight into the most recent advances in this rapidly growing field. The exosome revolution may well be the greatest advance in physiology and medicine since antibiotics. The discovery of their epigenetic role in intercellular signaling in virtually all tissues is a major breakthrough in our understanding of how cells function. Provides readers with a broad and timely overview of exosomes in health and disease, closing with a thought-provoking chapter on transgenerational inheritance, Darwin and Lamarck. Summarizes the most recent laboratory and clinical findings on exosomes across numerous medical disciplines, thereby offering readers a broad-ranging and solid foundation for prospective investigative efforts Twenty-one chapters authored by a global team of peer-acknowledged experts, each representing a key medical disciplineProvides readers with a broad and timely overview of exosomes in health and disease, closing
Download or read book Exosomes in Cardiovascular Diseases written by Junjie Xiao and published by Springer. This book was released on 2017-09-19 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides and intensive overview on exosomes in cardiovascular diseases, its potential as biomarkers, as well as pathological and therapeutic effects. It firstly describes the general aspects of exosomes including the definition, formation and secretion of exosomes and highlight their roles as biomarkers and pathological and therapeutic effects in cardiovascular diseases as well. Secondly, basic aspects of exosomes including the purification methods of exosomes, exosomes content, and functional roles of the cardiovascular exosomes are summarized. Thirdly, exosomes as biomarkers of cardiovascular diseases are overviewed including their roles in diagnosis, prognosis and reaction to therapy. Fourthly, pathological effects of exosomes and therapeutic effects of exosomes are highlighted. Finally, future prospects of exosomes in cardiovascular research would be provided. This is an essential reference for researchers working in cell biology and regeneration, as well as clinicians such as cardiologist.
Download or read book Cognition and Cancer written by Christina A. Meyers and published by Cambridge University Press. This book was released on 2012-12-13 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a unique resource on the influence cancer and cancer treatments have on cognition. The majority of cancer patients on active treatment experience cognitive impairments often referred to as 'chemobrain' or 'chemofog'. In addition, patients with primary or metastatic tumors of the brain often experience direct neurologic symptoms. This book helps health care professionals working with cancer patients who experience cognitive changes and provides practical information to help improve care by reviewing and describing brain-behavior relationships; research-based evidence on cognitive changes that occur with various cancers and cancer treatments; assessment techniques, including neurocognitive assessment and neuroimaging techniques; and intervention strategies for affected patients. In short, it will explain how to identify, assess and treat these conditions.
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 Perioperative Neurocognitive Disorders written by Roderic G. Eckenhoff and published by Cambridge University Press. This book was released on 2019-03-28 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical guide to perioperative cognitive disorders, the most common complications of anesthesia and surgery in older people.
Download or read book Extracellular Vesicles in Health and Disease written by Paul Harrison and published by CRC Press. This book was released on 2014-05-02 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in the role of extracellular vesicles (microvesicles and exosomes) is expanding rapidly. It is now apparent that far from being merely cellular debris, these vesicles play a key role in cell-to-cell communication and signaling. Moreover, they are significantly elevated in a number of diseases. This raises the question of their direct role in pathogenesis as well as their possible use as biomarkers. This book stems from the first international meeting on "Microvesicles and Nanovesicles in Health and Disease" held at Magdalen College, Oxford, in 2010. The purpose of the meeting was to bring together, for the first time, a range of experts from around the world to discuss the latest advances in this field. Key to the study of these vesicles is the availability of methodologies for their measurement in biological fluids. A major section of the meeting focused on a range of exciting new technologies which have been developed for this purpose. The presentations at this meeting form the basis of this book, which will appeal to basic scientists, clinicians, and those developing technology for the measurement of extracellular vesicles.
Download or read book Extracellular Vesicles and Their Importance in Human Health written by Ana Gil De Bona and published by BoD – Books on Demand. This book was released on 2020-03-04 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extracellular vesicle is a wide term that involves many different types of vesicles. Almost all the cell types studied secrete vesicles to the extracellular environment related to cell - cell communication. Extracellular vesicles have been found in different biological fluids, such as blood, milk, saliva, tears, urine, and cerebrospinal fluid. These vesicles transport different molecules, including mRNA, proteins, and lipids, some of them cell type specific that make them ideal biomarkers in both health and disease conditions. However, their contribution to different conditions is not well understood. The aim of this book is to provide an overview of the extracellular vesicles in the human body, how they are internalized, and their participation in several diseases.
Download or read book Protein Degradation Aggregation Membrane Trafficking and Exosomes in Neuronal Health and Disease written by Beatriz Alvarez and published by Frontiers Media SA. This book was released on 2022-08-02 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tissue Barriers in Disease Injury and Regeneration written by Nikolai V. Gorbunov and published by Elsevier. This book was released on 2021-06-19 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tissue Barriers in Disease, Injury and Regeneration focuses on the molecular and cellular fundamentals of homeostatic and defense responses of tissue barriers, covering the damaging impacts and exposure to pathogens and engineered nanomaterials. Sections emphasize the role of mesenchymal stoma, vascular, epithelial, telocyte, myofibroblast, lymphoid and reticuloendothelial cells, along with reactions that bridge the effects of ambient factors, medical treatments, drag delivery systems with alterations in barrier integrity, tissue/organ functions, and metabolic status. Other sections cover the role of progenitor cells of different origins in the remodeling and regeneration of tissue stroma, vasculature of blood-tissue barriers, and more. Includes special emphasis on the role of mesenchymal stoma, vascular, epithelial, telocyte, myofibroblast, lymphoid and reticuloendothelial cells in the development of reactions that bridge the effects of ambient factors, medical treatments, drag delivery systems with alterations in barrier integrity, tissue/organ functions, and in metabolic status Examines the role of progenitor cells of different origins in the remodeling and regeneration of tissue stroma, the vasculature of blood-tissue barriers, and mucosa and external epithelium
Download or read book MicroRNA Protocols written by Shao-Yao Ying and published by Springer Science & Business Media. This book was released on 2008-02-04 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: MicroRNA Protocols provides diverse, novel, and useful descriptions of miRNAs in several species, including plants, worms, flies, fish, chicks, mice, and humans. These include some useful adaptations and applications that could be relevant to the wider research community who are already familiar with the identification of miRNAs. This volume will stimulate the reader to explore diverse ways to understanding the mechanism in which miRNAs facilitate the molecular aspects of the biomedical research.
Download or read book Free Radicals in Human Health and Disease written by Vibha Rani and published by Springer. This book was released on 2014-11-14 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of oxidative stress in human disease has become an area of intense interest. Free radicals, a normal product of metabolism, exist in all aerobic cells in balance with biochemical antioxidants. Environmental stress increases the levels of free radicals drastically, thereby disturbing the equilibrium between free radical production and the antioxidant capability causing oxidative stress. Over the years, ROS has been implicated in the pathologies of various diseases like cancer, neurological disorder, cardiovascular diseases rheumatoid arthritis, diabetes etc. This book provides an in depth critical state-of-art reviews from established investigators on free radicals, ROS associated pathogenesis of human diseases, biomarkers of oxidative damage, antioxidants, phytonutrients and other related health concerns of modern society. The present book is aimed at graduate students, researchers in academia, industry and clinicians with the interest in redox biology. Special attention has been devoted to the topic of ROS signalling, oxidative stress induced human pathologies & antioxidative therapies. The book consists of four parts in specified topics based on the current literatures for the better understanding of the readers with respect to their subject-wise interests. The first section of the book provides an overview about the ROS production and their measuring tools and techniques followed by the mechanisms involved in the oxidative stress in the second section. The third section describes the involvement of oxidative stress in different human diseases and the last section focuses on the different strategies to ameliorate oxidative stress induced stress.
Download or read book Neuroendocrine Immunological Interactions in Health and Disease written by Vinicius Frias Carvalho and published by Frontiers Media SA. This book was released on 2021-10-21 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt:
