Download or read book Interphase Between Aging and Neurodegenerative Diseases written by Walter E. Müller and published by Frontiers Media SA. This book was released on 2020-01-21 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this Research Topic is to discuss the latest developments in aging and neurodegenerative diseases. Aging represents the major risk factor of the two most relevant neurodegenerative diseases Parkinson’s disease (PD) and Alzheimer’s disease (AD). It is generally accepted that symptoms of PD correlate with the severity of degeneration of dopaminergic substantia nigra neurons. In most cases neuronal loss during aging is not sufficient to cause clinical symptoms but only leads to a preclinical state of PD. However, in a small number of our population, neurodegeneration by aging gets accelerated by individual (e.g. brain injuries), environmental (e.g. toxins) and genetic (e.g. mutations of the alpha-synuclein gene) factors to reach the critical threshold for clinical symptoms during lifetime. Thus, neurodegeneration in PD appears to represent the common final pathway of “normal brain aging” and all other risk factors including genetics and the accumulation of the neurotoxic alpha-synuclein protein. While aging alone is generally agreed to be sufficient for at least the preclinical state of PD, the situation in AD seems to be different. Aging as the major and well documented risk factor of AD has been neglected for decades. Biochemical mechanisms of brain aging and the cognitive deficits of “normal brain aging” were seen as two not related and independent processes not related to AD. AD has always been characterized for decades by the presence of histopathological alterations (extracellular amyloid- containing plaques and intracellular tangles of hyperphosphorylated tau-protein), by neurodegeneration (synaptic deficits and finally neuronal loss), as well as by severe cognitive deficits clinically often accompanied by neuropsychiatric symptoms like delusions, as already described in the first famous patient Auguste D at the Psychiatric Hospital of Frankfurt. If or if not one or both of the two histopathological hallmarks play a causative role remains unclear until now. The discovery of homocygotic risk genes in most of the very rare (probably less than 1%) cases of early onset AD which share increased production of β-amyloid (Aβ) as one (but probably not the only one) common property led to the hypothesis of Aβ as the major causative factor for the development of AD. It was neglected that plaques density in the brain of AD patients did not correlate with presence and severity of clinical symptoms, while synaptic deficits did so even in first observations already published many years ago. Based on the Amyloid hypothesis, many drug treatments to remove Aβ plaques were developed. Even if all seemed to remove Aβ to some extent, all strategies failed to improve the symptoms of dementia. Thus, other concepts to explain the development of clinical symptoms of AD over time are needed. These should include the brain aging process not only as a statistical but also as a causative contributing factor. These concepts should not only relay on cell or animal models but should much more take into account the disease and the patients. A closer look at the situation in PD will certainly be helpful.

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 Aging and Age Related Disorders written by Stephen Bondy and published by Humana Press. This book was released on 2012-11-07 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Features that characterize the aging process include the gradual accumulation of cell damage after prolonged exposure to oxidative and inflammatory events over a lifetime. In addition to the accretion of lesions, the intrinsic levels of pro-oxidant and aberrant immune responses are elevated with age. These adverse events are often further enhanced by the chronic and slow progressing diseases that characterize the senescent brain and cardiovascular system. The incidence of some disorders such as Alzheimer's disease and vascular diseases are sufficiently prevalent in the extreme elderly that these disorders can arguably be considered "normal". Aging and Aging-Related Disorders examines the interface between normal and pathological aging, and illustrates how this border can sometimes be diffuse. It explores and illustrates the processes underlying the means by which aging becomes increasingly associated with inappropriate levels of free radical activity and how this can serve as a platform for the progression of age-related diseases. The book provides chapters that examine the interactive relationship between systems in the body that can enhance or sometimes even limit cellular longevity. In addition, specific redox mechanisms in cells are discussed. Another important aspect for aging discussed here is the close relationship between the systems of the body and exposure to environmental influences of oxidative stress that can affect both cellular senescence and a cell’s nuclear DNA. What may be even more interesting to note is that these external stressors are not simply confined to illnesses usually associated with aging, but can be evident in maturing and young individuals. A broad range of internationally recognized experts have contributed to this book. Their aim is to successfully highlight emerging knowledge and therapy for the understanding of the basis and development of aging–related disorders.

Download or read book Brain Aging written by Hugh C. Hendrie and published by . This book was released on 1990 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oxidative Stress and Age Related Neurodegeneration written by Yuan Luo and published by CRC Press. This book was released on 2005-11-21 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the progress being made by researchers, Alzheimer’s disease, along with other age-related neurodegenerative disorders, continues to exact a tremendous toll on our society. However, we are beginning to see a relationship that ties degenerative disorders to oxidative stress and lifestyle, suggesting the possibility for prevention and intervention through changes of individual habits, especially with regard to diet. Oxidative Stress and Age-Related Neurodegeneration brings together expert researchers involved with recent developments across a variety of fields. In looking at causation, prevention, and therapy, they offer contributions addressing these questions: What similarities and differences exist between normal aging and disease-related neurodegeneration in terms of susceptibility to and effects of oxidative stress? How can oxidative stress or its effects be attenuated? Do antioxidants prevent or slow the progress of the disease? Is there any role for natural micronutrients in the attenuation of oxidative stress and prevention of age-related neurodegeneration? Some chapters look at the various ways research is getting to the core of neurodegenerative disease, including the use of proteomics, comparisons to related diseases, and examinations at the cellular and molecular levels. Other chapters focus on specific antioxidants and nutrients cited as being impactful, such as those found in Gingko biloba, green tea, blueberries, and grape seed extract. Researchers in academia, industry, and clinical medicine, as well as students and scholars will find use for this timely collection, either as an introduction to our current understanding of neurodegeneration or as a reference for further research. Clinicians will also benefit, as this book explains the basis for many of the latest approaches to prevention and therapy.

Download or read book Inflammation Aging and Oxidative Stress written by Stephen C. Bondy and published by Springer. This book was released on 2016-12-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes the major degenerative processes and pathologies exacerbated by senescence and how they can be alleviated through retardation of cellular aging. Topics discussed include neurodegenerative disease, protein oxidation, cerebrovascular disease, particle-induced inflammation and cardiovascular disease, Alzheimer’s disease, ovarian aging, dietary and endogenous anti-oxidants in management of Parkinson’s disease, and effects of exercise on oxidation and inflammation. The nineteen expertly authored chapters are organized into three sections in order to present a complete picture to the reader: Age Related Cellular Events, Role of Inflammatory and Oxidative Processes in Age-Related Diseases, and Retardation of Cellular Aging. Inflammation, Oxidative Stress and Age-Related Disease draws from a variety of international perspectives and provides a comprehensive overview of the relationship between disease, cell aging, and oxidative stress, as well as potential for preventing or slowing these processes. This installment of Springer’s Oxidative Stress in Applied Basic Research and Clinical Practice is ideal for researchers, clinicians, and advanced graduate students in the fields of cardiology, neuroscience, biogerontolgy, and cell biology.

Download or read book Handbook of Neurochemistry and Molecular Neurobiology written by Abel Lajtha and published by Springer Science & Business Media. This book was released on 2008-06-06 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nervous system is highly fragile, especially during aging, illness and trauma. This book addresses a small sampling of major constituents of neural function at the cellular and molecular level that play crucial roles in development and aging.

Download or read book GeNeDis 2020 written by Panayiotis Vlamos and published by Springer Nature. This book was released on 2022-01-01 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 4th World Congress on Genetics, Geriatrics and Neurodegenerative Diseases Research (GeNeDis 2020) focuses on the latest major challenges in scientific research, new drug targets, the development of novel biomarkers, new imaging techniques, novel protocols for early diagnosis of neurodegenerative diseases, and several other scientific advances, with the aim of better, safer, and healthier aging. The increase in the average length of life leads to the development of various diseases in the elderly population. This volume focuses on the sessions from the conference on Geriatrics.

Download or read book The Metabolic Inflammatory Axis in Brain Aging and Neurodegeneration written by Fei Yin and published by Frontiers Media SA. This book was released on 2017-08-16 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impairment of energy metabolism is a hallmark of brain aging and several neurodegenerative diseases, such as the Alzheimer’s disease (AD). Age- and disease-related hypometabolism is commonly associated with oxidative stress and they are both regarded as major contributors to the decline in synaptic plasticity and cognition. Neuroinflammatory changes, entailing microglial activation and elevated expression of inflammatory cytokines, also correlate with age-related cognitive decline. It is still under debate whether the mitochondrial dysfunction-induced metabolic deficits or the microglia activation-mediated neuroinflammation is the initiator of the cognitive changes in aging and AD. Nevertheless, multiple lines of evidence support the notion that mitochondrial dysfunction and chronic inflammation exacerbate each other, and these mechanistic diversities have cellular redox dysregulation as a common denominator. This research topic focuses on the role of a metabolic-inflammatory axis encompassing the bioenergetic activity, brain inflammatory responses and their redox regulation in healthy brain aging and neurodegenerative diseases. Dynamic interactions among these systems are reviewed in terms of their causative or in-tandem occurrence and how the systemic environment, –e.g., insulin resistance, diabetes, and systemic inflammation–, impacts on brain function.

Download or read book Proteostasis and Disease written by Rosa Barrio and published by Springer Nature. This book was released on 2020-04-09 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, written by members of the European network PROTEOSTASIS, provides an up-to-date review of the research regarding protein homeostasis in health and disease. With new discoveries contributing to the increasing complexity of this topic, the book offers a detailed overview of the pathways regulating protein homeostasis, including autophagy and the ubiquitin protein family. Following a basic introduction, it explains how defects in protein homeostasis contribute to numerous pathologies, including cancer, neurodegeneration, inflammation and a number of rare diseases. In addition, it discusses, the role of protein homeostasis in cellular development and physiology. Highlighting the latest research in the field of protein homeostasis and its implications for various clinically relevant diseases, the book appeals to researchers and clinicians, while also offering a reference guide for scholars who are new to the field.

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 Cardiac Regeneration written by Masaki Ieda and published by Springer. This book was released on 2017-10-27 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Volume of the series Cardiac and Vascular Biology offers a comprehensive and exciting, state-of-the-art work on the current options and potentials of cardiac regeneration and repair. Several techniques and approaches have been developed for heart failure repair: direct injection of cells, programming of scar tissue into functional myocardium, and tissue-engineered heart muscle support. The book introduces the rationale for these different approaches in cell-based heart regeneration and discusses the most important considerations for clinical translation. Expert authors discuss when, why, and how heart muscle can be salvaged. The book represents a valuable resource for stem cell researchers, cardiologists, bioengineers, and biomedical scientists studying cardiac function and regeneration.

Download or read book Protein Homeostasis written by Richard I. Morimoto and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proper folding of proteins is crucial for cell function. Chaperones and enzymes that post-translationally modify newly synthesized proteins help ensure that proteins fold correctly, and the unfolded protein response functions as a homeostatic mechanism that removes misfolded proteins when cells are stressed. This book covers the entire spectrum of proteostasis in healthy cells and the diseases that result when control of protein production, protein folding, and protein degradation goes awry.

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 Two Faces of Evil Cancer and Neurodegeneration written by Thomas Curran and published by Springer Science & Business Media. This book was released on 2010-12-16 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homeostasis involves a delicate interplay between generative and degenerative processes to maintain a stable internal environment. In biological systems, equilibrium is established and controlled through a series of negative feedback mechanisms driven by a range of signal transduction processes. Failures in these complex communication pathways result in instability leading to disease. Cancer represents a state of imbalance caused by an excess of cell proliferation. In contrast, neurodegeneration is a consequence of excessive cell loss in the nervous system. Both of these disorders exhort profound tolls on humanity and they have been subject to a great deal of research designed to ameliorate this suffering. For the most part, the topics have been viewed as distinct and rarely do opportunities arise for transdisciplinary discussions among experts in both fields. However, cancer and neurodegeneration represent yin-yang counterpoints in the regulation of cell growth, and it is reasonable to hypothesize that key regulatory events mediated by oncogenes and tumor suppressor genes in cancer may also affect neurodegenerative processes

Download or read book Oxidative Stress and Neurodegenerative Disorders written by G. Ali Qureshi and published by Elsevier. This book was released on 2007-03-22 with total page 795 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxidative stress is the result of an imbalance in pro-oxidant/antioxidant homeostasis that leads to the generation of toxic reactive oxygen species. Brain cells are continuously exposed to reactive oxygen species generated by oxidative metabolism, and in certain pathological conditions defense mechanisms against oxygen radicals may be weakened and/or overwhelmed. DNA is a potential target for oxidative damage, and genomic damage can contribute to neuropathogenesis. It is important therefore to identify tools for the quantitative analysis of DNA damage in models on neurological disorders. This book presents detailed information on various neurodegenerative disorders and their connection with oxidative stress. This information will provide clinicians with directions to treat these disorders with appropriate therapy and is also of vital importance for the drug industries for the design of new drugs for treatment of degenerative disorders. * Contains the latest information on the subject of neurodegenerative disorders* Reflects on various factors involved in degeneration and gives suggestions for how to tackle these problems

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