Download or read book Novel mechanisms involved in aging and neurodegeneration Seeking potential therapeutic targets for neurodegenerative diseases written by Natalia Salvadores and published by Frontiers Media SA. This book was released on 2023-01-10 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book From Oxidative Stress to Cognitive Decline Towards Novel Therapeutic Approaches written by Touqeer Ahmed and published by Frontiers Media SA. This book was released on 2023-09-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative stress plays multiple roles in the pathobiology of several neurodegenerative disorders and Alzheimer’s disease in particular. Increased oxidative stress in the brain is suggested to be associated with aging, greater amounts of easily oxidizable unsaturated fatty acids, higher utilization of oxygen by the brain, mitochondrial-derived free radicals, calcium homeostasis, and glutamate-induced excitotoxicity. Moreover, environmental chemicals/toxins, heavy metals, and an imbalanced diet might increase oxidative stress potentially leading to a decrease in cognitive functions. Cellular health is also dependent on the levels of nicotinamide adenine dinucleotide (NAD+). It has been well documented that NAD+ is an important coenzyme for over 400 different oxidoreductases and turns out to be a relevant factor to the oxidative stress in the brain. Since the last two decades, NAD+ has been shown to be more than a mere regulator of metabolism, but rather may play a key role in the aging process. NAD+ along with sirtuins are important for various neurophysiological functions, and depletion of NAD+ may be associated with compromised physiological and cognitive functions. To protect the brain from oxidative stress, a modest endogenous protective system works in the brain through dedicated enzymatic machinery. Key enzymes are superoxide dismutase and catalase, which provide protection against oxidative stress. Aging, various neurological disorders, and chronic inflammation might also affect the levels of these protective enzymes and reduce their levels. Natural compounds, including polyphenols, can offer protection through NAD+ and various other mechanisms. Based on these factors it is becoming more and more clear that oxidative stress and its devastating effects on cognitive decline represents a major health issue in neurobiology. There is a need to identify potential compounds and therapeutic targets for mitigating oxidative stress and/or to strengthen the protective endogenous mechanisms. Novel approaches aiming to support and provide protective mechanisms in the brain will represent a great success in therapeutics. We welcome all article types focusing on the analysis and investigation of oxidative stress - originated from different sources - and its impairing effects on the brain. We will also accept studies investigating naturally occurring compounds, standard medications, and nutraceuticals that have an impact on oxidative stress, NAD+ metabolism and medical and health applications. For this, the aim of this Research Topic is to provide novel insights on oxidative stress (induced by any mechanism) impact on brain health, and on the strengthening of brain-protective mechanisms, supporting cognitive functions.
Download or read book Frontiers in Neurodegenerative Disorders and Aging written by Tomris Özben and published by . This book was released on 2004 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together some of the best researchers in the field of aging and neurodegenerative diseases and presents up-to-date information concerning new developments in this exciting area of research in quite separate fields of biomedical science. It includes a wide range of issues such as basic and applied concepts, methods, and techniques used in this area. The chapters examine and evaluate our understanding of the pathogenetic mechanisms involved in these fields such as increased protein oxidation and macromolecular modifications associated with aging. This is a novel strategy for the visualization of ROS-induced protein oxidation and protection by antioxidants in living cells using fluorescent probes, thermochemiluminescence (TCL) methodology for determination of the oxidative status of biological systems in experimental and clinical setups, protein degradation, proteasome inactivation observed in the aging process or caused by oxidative stress.Other topics addressed are the oxidative stress theory of aging, oxidation and removal of protein aggregates in neurodegeneration, causes and consequences of oxidative stress in Alzheimer's disease, assessment of antioxidants as a therapeutic for neurodegenerative diseases, rafts and prions, the many forms of the prion protein and its subcellular pathways, signaling pathways in protection of neural tissues by ischemic and drug-induced preconditioning, folding of proteins associated with neurodegenerative disorders and aging and neuroprotection in immuno-mediated neurodegeneration from infection to autoimmunity.
Download or read book New Insights into Molecular Mechanisms Underlying Neurodegenerative Disorders written by Chiara Villa and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurodegenerative disorders encompass a broad range of sporadic and/or familial debilitating conditions characterized by the progressive dysfunction and loss of selective neuronal populations, determining different clinical phenotypes. Emerging research data indicate an interplay of genetic factors and epigenetic mechanisms underlying neurodegenerative processes, which lead to increased prevalence of neurodegenerative disorders. In concert with the constant increase in the aging population, neurodegenerative disorders currently represent a major challenge to public health worldwide. Despite recent advances in clinical and preclinical research, the pathogenesis of these disorders still remains poorly understood, without effective treatments being available to halt the neurodegenerative processes, but rather aiming at relieving symptoms. Therefore, a critical evaluation of current research data and in-depth understanding of the molecular mechanisms that lead to neurodegeneration are crucial in order to identify potential therapeutic targets that can pave the way to the development of novel and promising therapies. This Special Issue is focused on novel molecular data in the field of neurodegeneration that associate with the onset and progression of neurodegenerative diseases. We are particularly interested in original articles and reviews that provide new insights into the main molecular pathogenic mechanisms underlying neurodegenerative disorders, aiming to identify potential biomarkers and novel therapeutic strategies.
Download or read book Systems Biology of Free Radicals and Antioxidants written by Ismail Laher and published by Springer. This book was released on 2014-06-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this collection of illustrated reviews is to discuss the systems biology of free radicals and anti-oxidants. Free radical induced cellular damage in a variety of tissues and organs is reviewed, with detailed discussion of molecular and cellular mechanisms. The collection is aimed at those new to the field, as well as clinicians and scientists with long standing interests in free radical biology. A feature of this collection is that the material also brings insights into various diseases where free radicals are thought to play a role. There is extensive discussion of the success and limitations of the use of antioxidants in several clinical settings.
Download or read book Epigenetics of Aging written by Trygve O. Tollefsbol and published by Springer Science & Business Media. This book was released on 2009-11-11 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies have indicated that epigenetic processes may play a major role in both cellular and organismal aging. These epigenetic processes include not only DNA methylation and histone modifications, but also extend to many other epigenetic mediators such as the polycomb group proteins, chromosomal position effects, and noncoding RNA. The topics of this book range from fundamental changes in DNA methylation in aging to the most recent research on intervention into epigenetic modifications to modulate the aging process. The major topics of epigenetics and aging covered in this book are: 1) DNA methylation and histone modifications in aging; 2) Other epigenetic processes and aging; 3) Impact of epigenetics on aging; 4) Epigenetics of age-related diseases; 5) Epigenetic interventions and aging: and 6) Future directions in epigenetic aging research. The most studied of epigenetic processes, DNA methylation, has been associated with cellular aging and aging of organisms for many years. It is now apparent that both global and gene-specific alterations occur not only in DNA methylation during aging, but also in several histone alterations. Many epigenetic alterations can have an impact on aging processes such as stem cell aging, control of telomerase, modifications of telomeres, and epigenetic drift can impact the aging process as evident in the recent studies of aging monozygotic twins. Numerous age-related diseases are affected by epigenetic mechanisms. For example, recent studies have shown that DNA methylation is altered in Alzheimer’s disease and autoimmunity. Other prevalent diseases that have been associated with age-related epigenetic changes include cancer and diabetes. Paternal age and epigenetic changes appear to have an effect on schizophrenia and epigenetic silencing has been associated with several of the progeroid syndromes of premature aging. Moreover, the impact of dietary or drug intervention into epigenetic processes as they affect normal aging or age-related diseases is becoming increasingly feasible.
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 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 Brain Aging written by David R. Riddle and published by CRC Press. This book was released on 2007-04-19 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recognition that aging is not the accumulation of disease, but rather comprises fundamental biological processes that are amenable to experimental study, is the basis for the recent growth of experimental biogerontology. As increasingly sophisticated studies provide greater understanding of what occurs in the aging brain and how these changes occur
Download or read book Limbic predominant Age related TDP 43 Encephalopathy written by Beller Health and published by Independently Published. This book was released on 2019-05-13 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Book 9 focuses on a new dementia type, LATE, mistaken as Alzheimer's disease until now.LATE stands for Limbic-predominant age-related TDP-43 encephalopathy, the protein buildup responsible for this dementia. This book is organic, like the series, meaning we never consider our books as finished. Science evolves, which is why our books go through continuous updates. Since LATE is a new dementia classification, we expect continuous further information to emerge. Watch Amazon alerts for potential digital updates. We provide free digital copies on all paperback purchases, so everybody receives free updates.
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 Guidance for the Description of Animal Research in Scientific Publications written by National Research Council and published by National Academies Press. This book was released on 2011-09-16 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The publication of research articles involving animal studies is central to many disciplines in science and biomedicine. Effective descriptions in such publications enable researchers to interpret the data, evaluate and replicate findings, and move the science forward. Analyses of published studies with research animals have demonstrated numerous deficiencies in the reporting of details in research methods for animal studies. Considerable variation in the amount of information required by scientific publications and reported by authors undermines this basic scientific principle and results in the unnecessary use of animals and other resources in failed efforts to reproduce study results. Guidance for the Description of Animal Research in Scientific Publications outlines the information that should be included in scientific papers regarding the animal studies to ensure that the study can be replicated. The report urges journal editors to actively promote effective and ethical research by encouraging the provision of sufficient information. Examples of this information include: conditions of housing and husbandry, genetic nomenclature, microbial status, detailed experimental manipulations, and handling and use of pharmaceuticals. Inclusion of this information will enable assessment and interpretation of research findings and advancement of knowledge based on reproducible results.
Download or read book High and Rising Mortality Rates Among Working Age Adults written by National Academies of Sciences Engineering and Medicine and published by . This book was released on 2021-12-02 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular and Cellular Mechanisms of Synaptopathies Emerging Synaptic aging related molecular pathways in Neurological Disorders written by Dario Maschi and published by Frontiers Media SA. This book was released on 2024-01-11 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synapses are complex, highly specialized biological structures. Therefore, even slight functional disturbance can lead to disruptive brain disorders. Dysfunction of these structures is associated with a variety of aging-related neurodegenerative conditions, such as Alzheimer's and Parkinson's disease. Most synaptopathies compromise complex signaling pathways by progressively affecting the synaptic protein repertoire. Currently, the treatment of most of these pathologies focuses on the mitigation of symptoms; in consequence, further efforts need to be made to elucidate the common molecular culprit and cellular mechanisms underlying the cause of these severe pathologies to serve as therapeutic targets for clinical applications. In this Research Topic, we aim to discuss synaptic dysfunction as a causal factor for aging-related neurodegenerative diseases. Despite the recent technological advances that allow identifying the individual synaptic components affected in these synaptic pathologies, we know little about how they impact the synaptic function. To promote the discussion around the molecular and functional connection, we primarily welcome original research, review, and perspective articles emphasizing the relationship between synaptic function and the proteins or mechanisms affected.
Download or read book Neurodegenerative Diseases written by Nagehan Ersoy Tunalı and published by BoD – Books on Demand. This book was released on 2021-01-20 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurodegenerative diseases represent a very large group of heterogeneous disorders affecting specific subtypes of neurons in the brain. This book contributes insight both to the awareness of the brain and its neurodegenerative states. The chapters present current knowledge regarding genetics, molecular mechanisms, and new therapeutic strategies against neurodegenerative disorders. The book is intended to serve as a source to aid clinicians and researchers in the field, and also life science readers to increase their understanding and awareness of the clinical correlations, genetic aspects, neuropathological findings, and current therapeutic interventions in neurodegenerative diseases. I believe that this book will enlighten the curiosity for neurodegeneration and also encourage researchers to work on potentially effective molecular therapies for still mysterious neurodegenerative disorders.
Download or read book Enteric Glia written by Brian D. Gulbransen and published by Biota Publishing. This book was released on 2014-07-01 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enteric nervous system (ENS) is a complex neural network embedded in the gut wall that orchestrates the reflex behaviors of the intestine. The ENS is often referred to as the “little brain” in the gut because the ENS is more similar in size, complexity and autonomy to the central nervous system (CNS) than other components of the autonomic nervous system. Like the brain, the ENS is composed of neurons that are surrounded by glial cells. Enteric glia are a unique type of peripheral glia that are similar to astrocytes of the CNS. Yet enteric glial cells also differ from astrocytes in many important ways. The roles of enteric glial cell populations in the gut are beginning to come to light and recent evidence implicates enteric glia in almost every aspect of gastrointestinal physiology and pathophysiology. However, elucidating the exact mechanisms by which enteric glia influence gastrointestinal physiology and identifying how those roles are altered during gastrointestinal pathophysiology remain areas of intense research. The purpose of this e-book is to provide an introduction to enteric glial cells and to act as a resource for ongoing studies on this fascinating population of glia. Table of Contents: Introduction / A Historical Perspective on Enteric Glia / Enteric Glia: The Astroglia of the Gut / Molecular Composition of Enteric Glia / Development of Enteric Glia / Functional Roles of Enteric Glia / Enteric Glia and Disease Processes in the Gut / Concluding Remarks / References / Author Biography
Download or read book The Benefits of Natural Products for Neurodegenerative Diseases written by M. Mohamed Essa and published by Springer. This book was released on 2016-09-20 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on the effects of natural products and their active components on brain function and neurodegenerative disease prevention. Phytochemicals such as alkaloids, terpenes, flavanoids, isoflavones, saponins etc are known to possess protective activity against many neurological diseases. The molecular mechanisms behind the curative effects rely mainly on the action of phytonutrients on distinct signaling pathways associated with protein folding and neuro-inflammation. The diverse array of bioactive nutrients present in these natural products plays a pivotal role in prevention and cure of various neurodegenerative diseases, disorders, or insults, such as Alzheimer's Disease, Parkinson's Disease, Huntington's Disease, traumatic brain injury, and other neuronal dysfunctions. However, the use of these antioxidants in the management of neurodegenerative conditions has so far been not well understood. This is a comprehensive collection addressing the effects on the brain of natural products and edible items such as reservatrol, curcumin, gingerol, fruits, vegetables, nuts, and marine products.
