Membrane Lipid Signaling In Aging And Age Related Disease

The lipids of cellular membranes not only serve roles in controlling the structure and fluidity of the membrane, but are increasingly recognized for their roles as signalling molecules and modifiers of membrane protein function. Recent studies described in this volume reveal striking changes in membrane lipids during aging and in age-related diseases such as cancer, cardiovascular disease and neurodegenerative disorders. Lipids including inositol phospholipids, cholesterol, sphingolipids and ceramides play important roles in signalling cellular responses to stress and specific stimuli such as growth factors, cytokines and neurotransmitters. One or more of these lipid mediators has been linked to the pathogenesis of age-related diseases. This book provides a comprehensive review of specific membrane lipid mediators and their roles in aging and age-related disease.

Sleep and Aging provides a unique and timely collection of review articles that cover the gamut of basic and clinical aspects of sleep and the abnormalities in sleep associated with aging and neurological disorders that occur during aging. From the evolutionary basis of sleep and its normal functions in processes such as learning and memory, to considerations of the roles of sleep abnormalities in neurological disorders such as depression, Alzheimer's and Parkinson's diseases, the chapters are written by experts in the field. Several chapters focus on signalling pathways involved in sleep regulation and abnormalities in sleep, including those activated by serotonin and BDNF. Basic and clinical research on insomnia, sleep apnea and other disorders of sleep, are covered thus providing students and scientists at all levels with a valuable source of information to advance their understanding of this important topic in aging, biology and medicine. The circuits in the brain involved in sleep regulation, their neurochemistry, how they are altered in disorders of sleep and current clinical treatments of various sleep disorders are reviewed. The important role of sleep disturbances in neurodegenerative disorders is described and research in this particular area is leading to a better understanding of the relationships between synaptic plasticity, neuronal degeneration and the clinical manifestations of disorders such as Alzheimer's disease, Parkinson's disease and depression. This book is a must for scientists, as well as non-scientists, who are interested in the neurobiology of aging, sleep and neurodegenerative disorders.

Recent Events in the Psychology of Aging documents the successful integration of aging into the mainstream of psychology. Leading psychologists present overviews of the key issues and research findings on mainstream topics. These include cognitive neuroscience, visual attention, learning, memory and cognition, as well as personality and happiness. The intersection of aging content with mainstream psychology is also prominent in the areas of emotions, personality, and social psychology as seen in the chapters on subjective well-being, emotional development, self-esteem and personality trajectories. The seven chapters of this book offer information on such topics as: the seven sins of memory, categorizing the common breakdowns of memory in everyday life and the special breakdown of sins that increase with aging; problems with attention and learning; and offers answers to questions such as do emotions get blunted with age; do older people focus more on positive feelings; and the age old question of whether older people are happier than younger people is given in the chapter on the evolving concept of subjective well-being and the multifaceted nature of happiness. Questions about what occurs to one's self-esteem and personality are also masterfully discussed and the answers may be surprising. The concluding seventh chapter provides a cultural lens on the biopsychosocial study of aging.

Experts in the fields of energy metabolism, aging and oxidative stress provide an integrated view of how mechanisms involved in regulating energy metabolism are linked to fundamental processes of aging including cellular stress resistance and free radical production. During evolution signal transduction pathways and organ systems have been optimised for the efficient seeking, ingestion, storing and using of energy. These signalling pathways play prominent roles in lifespan determination with insulin and related signalling pathways being prime examples. The authors consider how lifespan and healthspan can be extended through knowledge of energy metabolism with the experimental model of dietary restriction being one example. The information in this volume of ACAG will foster novel approaches and experiments for further understanding the roles of energy metabolism in aging and disease.

Ageing is of perennial interest as a universal feature in all human societies. The genetic background and biochemical bases of ageing processes are currently being revealed in unprecedented detail. It is emerging that one of the main hurdles to be overcome in achieving a long and healthy lifespan is the maintenance of a properly functioning immune system. The main cause of death in people who have achieved "successful ageing" (which mostly means not having succumbed to cancer or cardiovascular disease) is infectious disease, caused by immunosenescence. This book contains chapters by many of the leaders in the field of immune-related issues in ageing and remediation.

Aging: Oxidative Stress and Dietary Antioxidants, Second Edition, bridges the trans-disciplinary divide and covers the science of oxidative stress in aging and the therapeutic use of natural antioxidants in the food matrix in a single volume. The second edition covers new trials and investigations used to determine the comprehensive properties of antioxidants, food items and extracts, as well as any adverse properties they may have. It has been updated to include new clinical human trials and a new section dedicated to animal models of aging. Throughtout the book the processes within the science of oxidative stress are described in concert with other processes, such as apoptosis, cell signaling, and receptor mediated responses. This approach recognizes that diseases are often multifactorial, and oxidative stress is a single component of this. Gerontologists, geriatricians, nutritionists, and dieticians are separated by divergent skills and professional disciplines that need to be bridged to advance preventative as well as treatment strategies. While gerontologists and geriatricians may study the underlying processes of aging, they are less likely to be conversant in the science of nutrition and dietetics. On the other hand, nutritionists and dietitians are less conversant with the detailed clinical background and science of gerontology. This book addresses this gap and brings each of these disciplines to bear on the processes inherent in the oxidative stress of aging. This will aid in better research, treatment and outcome for patients. Compares information related to mitochondrial oxidative stress in one disease to diet-related strategies in other unrelated diseases Provides an understanding of cell signalling leading to new suggestions of preventative or therapeutic strategies Includes a new section dedicated to animal models of aging

Lipid peroxidation can occur via either enzymatic or nonenzymatic reactions due to excess production of free radical molecules. This process culminates in cellular damage causing various diseases. This book examines lipid peroxidation as a current and future biomarker of oxidative stress.

Lipid Signaling and Metabolism provides foundational knowledge and methods to examine lipid metabolism and bioactive lipid signaling mediators that regulate a broad spectrum of biological processes and disease states. Here, world-renowned investigators offer a basic examination of general lipid, metabolism, intracellular lipid storage and utilization that is followed by an in-depth discussion of lipid signaling and metabolism across disease areas, including obesity, diabetes, fatty liver disease, inflammation, cancer, cardiovascular disease and mood-related disorders. Throughout, authors demonstrate how expanding our understanding of lipid mediators in metabolism and signaling enables opportunities for novel therapeutics. Emphasis is placed on bioactive lipid metabolism and research that has been impacted by new technologies and their new potential to transform precision medicine. Provides a clear, up-to-date understanding of lipid signaling and metabolism and the impact of recent technologies critical to advancing new studies Empowers researchers to examine bioactive lipid signaling and metabolism, supporting translation to clinical care and precision medicine Discusses the role of lipid signaling and metabolism in obesity, diabetes, fatty liver disease, inflammation, cancer, cardiovascular disease and mood-related disorders, among others