Download or read book Neuronal Inputs and Outputs of Aging and Longevity written by Joy Alcedo and published by Frontiers. This book was released on 2013-08-23 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: An animal’s survival strongly depends on its ability to maintain homeostasis in response to the changing quality of its external and internal environments. This is achieved through intercellular communication not only within a single tissue but also among different tissues and organ systems. Thus, alterations in tissue-to-tissue or organ-to-organ communications, which are under genetic regulation, can affect organismal homeostasis, and consequently impact the aging process. One of the organ systems that play a major role in maintaining homeostasis is the nervous system. Considering that the nervous system includes the sensory system, which perceives the complexity of an animal’s environment, it should be no surprise that there would be a sensory influence on homeostasis and aging. To promote homeostasis, any given sensory information is transmitted through short-range signals via neural circuits and/or through long-range endocrine signals to target tissues, which may in turn be neuronal or non-neuronal in nature. At the same time, since homeostasis involves a number of feedback mechanisms, non-neuronal tissues can also modulate sensory and other neuronal functions. Several genes that regulate signaling pathways known to affect homeostasis and aging have been shown to act in neurons, in tissues that are likely downstream targets of the nervous system, or through feedback regulation of neuronal activities. These genes can have different temporal requirements: some might function early, e.g., by affecting neural development, while others may only be required later in adulthood. Some well-known examples of genes involved in the neuronal regulation of homeostasis and longevity encode components of the evolutionarily conserved nutrient-sensing insulin/insulin-like signaling pathway, the stress-sensing internal repair system, and the mitochondrial electron transport chain. Indeed, the genetic perturbation of these pathways has been found to lead to numerous diseases, many of which are age-related and involve the nervous system, such as neurodegeneration and the metabolic syndrome. Despite much progress, however, many aspects of the neuronal inputs and outputs that affect aging and longevity are poorly understood to date. For example, the precise neuronal and non-neuronal circuitries and the details of the molecular mechanisms through which genes/signaling pathways maintain homeostasis and affect aging in response to the environment remain to be elucidated. Similarly, it is presently unclear whether genes that regulate the early development of the nervous system and its consequent circuitry influence homeostasis and longevity during adulthood. At the same time, although many genes affecting aging are conserved, both the nervous system and the aging process are highly variable within populations and among taxa. Accordingly, the role of natural genetic variation in shaping the neurobiology of aging is also presently unknown. The aim of this Research Topic is therefore to highlight the genetic, developmental, and physiological aspects of the signaling networks that mediate the neuronal inputs and outputs that are required to maintain organismal homeostasis. The elucidation of the effects of these neuronal activities on homeostasis may thus provide much-needed insight into mechanisms that affect aging and longevity.
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 413 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 Geriatric Gastroenterology written by C. S. Pitchumoni and published by Springer Science & Business Media. This book was released on 2012-07-26 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: As aging trends in the United States and Europe in particular are strongly suggestive of increasingly older society, it would be prudent for health care providers to better prepare for such changes. By including physiology, disease, nutrition, pharmacology, pathology, radiology and other relevant associated topics, Geriatric Gastroenterology fills the void in the literature for a volume devoted specifically to gastrointestinal illness in the elderly. This unique volume includes provision of training for current and future generations of physicians to deal with the health problems of older adults. It will also serve as a comprehensive guide to practicing physicians for ease of reference. Relevant to the geriatric age group, the volume covers epidemiology, physiology of aging, gastrointestinal physiology, pharmacology, radiology, pathology, motility disorders, luminal disorders, hepato-biliary disease, systemic manifestations, neoplastic disorders, gastrointestinal bleeding, cancer and medication related interactions and adverse events, all extremely common in older adults; these are often hard to evaluate and judge, especially considering the complex aging physiology. All have become important components of modern medicine. Special emphasis is be given to nutrition and related disorders. Capsule endoscopy and its utility in the geriatric population is also covered. Presented in simple, easy to read style, the volume includes numerous tables, figures and key points enabling ease of understanding. Chapters on imaging and pathology are profusely illustrated. All chapters are written by specialists and include up to date scientific information. Geriatric Gastroenterology is of great utility to residents in internal medicine, fellows in gastroenterology and geriatric medicine as well as gastroenterologists, geriatricians and practicing physicians including primary care physicians caring for older adults.
Download or read book Biology of Longevity and Aging written by Robert Arking and published by . This book was released on 2019-01-10 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introductory text to the biology of aging and longevity, offering a thorough review of the field.
Download or read book Life Extension written by Alexander M. Vaiserman and published by Springer. This book was released on 2015-06-09 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book looks at aging through research on Drosophila, the fruit fly that is one of the most widely used model organisms in bio gerontology. Work in model organisms can expand the theoretical knowledge of aging: it yields valuable insight into the molecular and cellular processes that underlie aging process, and it can perhaps provide new therapeutic targets for the treatment of age-related disorders in humans. Drosophila models have been developed for a large variety of aging-related processes and diseases, and this book provides readers with an overview of current research on the use of the Drosophila model to understand the genetic, molecular and physiological mechanisms that underlie the aging process. Themes of health span, life extension and longevity-associated genes emerge in this collation of international research on Drosophila that is of relevance to geriatrics and gerontology, animal genetics and genomics, and biomedicine. This fascinating, illustrated book will be of interest to a wide audience, ranging from academic researchers to the general reader.
Download or read book The Cambridge Handbook of Successful Aging written by Rocío Fernández-Ballesteros and published by Cambridge University Press. This book was released on 2019-01-24 with total page 969 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies show that more people than ever before are reaching old age in better health and enjoying that health for a longer time. This Handbook outlines the latest discoveries in the study of aging from bio-medicine, psychology, and socio-demography. It treats the study of aging as a multidisciplinary scientific subject, since it requires the interplay of broad disciplines, while offering high motivation, positive attitudes, and behaviors for aging well, and lifestyle changes that will help people to stay healthier across life span and in old age. Written by leading scholars from various academic disciplines, the chapters delve into the most topical aspects of aging today - including biological mechanisms of aging, aging with health, active and productive aging, aging with satisfaction, aging with respect, and aging with dignity. Aimed at health professionals as well as general readers, this Cambridge Handbook offers a new, positive approach to later life.
Download or read book Longevity Genes written by Gil Atzmon, PhD and published by Springer. This book was released on 2015-04-27 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: The release of the complete version of the human genome sequence in 2003 has paved the way for defining gene function and genetic background for phenotypic variation in humans and allowed us to study the aging process in a new light. This new volume results from that research and focuses on the genetic and epigenetic process of aging. While the interpretation of the genome data is still in its initial stages, this new volume looks at the evolving understanding of molecular mechanisms involved in cellular processes, gene function associated with complex traits, epigenetic components involve in gene control and the creation of hypothesis-free genome-wide approaches. Longevity Genes: A Blueprint for Aging explores the genetic and genomic elements that can maintain a long life such as DNA damage mechanisms, epigenetics and the way we can use this knowledge to generate customized treatments. It touches on some of the multidisciplinary approaches as well as genomic-wide association technology used to analyze complex traits. This book describes the hunt for genes affecting complex traits using a high throughput technology, with adequate consideration for the selection of an appropriate population, applications of statistical genetics and computational biology, and most importantly, considering phenotype-genotype association studies. Longevity Genes provides coverage of not only established aspects of genetics and aging, but also new approaches and perceptions in this important area of research.
Download or read book Aging written by Shamim I. Ahmad and published by CRC Press. This book was released on 2017-10-30 with total page 881 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a detailed and comprehensive synthesis of the scientific study of aging. Dozens of contributions from leading scholars review various theories of aging, and molecular, cellular, biochemical and microbial aspects of aging, among just a few of the topics included. Authoritative, wide ranging and thorough, this book will act as a source for experimental design, a comprehensive description of age related diseases, and provide information of the latest molecular theories underlying their causes. Additionally, it will target industries involved in developing anti-aging drugs, post-graduate medical students, and university libraries.
Download or read book Elucidation of Abiotic Stress Signaling in Plants written by Girdhar K. Pandey and published by Springer. This book was released on 2015-05-30 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abiotic stresses such as high temperature, low-temperature, drought, and salinity limit crop productivity worldwide. Understanding plant responses to these stresses is essential for rational engineering of crop plants. In Arabidopsis, the signal transduction pathways for abiotic stresses, light, several phytohormones and pathogenesis have been elucidated. A significant portion of plant genomes (most studies are Arabidopsis and rice genome) encodes for proteins involves in signaling such as receptor, sensors, kinases, phosphatases, transcription factors and transporters/channels. Despite decades of physiological and molecular effort, knowledge pertaining to how plants sense and transduce low and high temperature, low-water availability (drought), water-submergence and salinity signals is still a major question before plant biologists. One major constraint hampering our understanding of these signal transduction processes in plants has been the lack or slow pace of application of molecular genomic and genetics knowledge in the form of gene function. In the post-genomic era, one of the major challenges is investigation and understanding of multiple genes and gene families regulating a particular physiological and developmental aspect of plant life cycle. One of the important physiological processes is regulation of stress response, which leads to adaptation or adjustment in response to adverse stimuli. With the holistic understanding of the signaling pathways involving not only one gene family but multiple genes or gene families, plant biologists can lay a foundation for designing and generating future crops that can withstand the higher degree of environmental stresses (especially abiotic stresses, which are the major cause of crop loss throughout the world) without losing crop yield and productivity. Therefore, in this proposed book, we intend to incorporate the contribution from leading plant biologists to elucidate several aspects of stress signaling by functional genomic approaches.
Download or read book Periphery written by Moses V. Chao and published by Harvard University Press. This book was released on 2023 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: A leading neuroscientist argues that the peripheral nervous system, long understood to play a key role in regulating basic bodily functions, also signals the onset of illness. Millions of years ago, one of the first organisms--a deep-ocean worm--functioned without a brain. It detected the light around itself through a mesh of cells that enabled sensation, performing all manner of bodily functions through its peripheral nervous system. In humans, these sensory nerves and fibers regulate digestion, heart rate, perspiration, and other involuntary systems. And beyond these critical roles in our bodies, Moses Chao argues, the peripheral nervous system can also warn us about neurodegenerative disorders that may be in our futures. Periphery describes how the peripheral nervous system evolved to detect sensations--smells, sounds, and touch. The organs of the PNS prove to be an integral part of how we make sense of the world, packaging and transmitting information throughout the body to inform our cognition, attention, perception, and memory. But Chao contends that the peripheral nerves may do more than regulate and detect--they may also allow us to predict the onset of disease. Thorough investigation of historical findings, clinical cases, and contemporary research suggests that peripheral activities create markers of neurological and psychiatric conditions, including Parkinson's disease, autism, and dementia. These are bold claims, some of them speculative, but Chao marshals compelling evidence. With optimal clinical management and even potential treatment increasingly dependent on the earliest possible detection, his insights may prove invaluable to patients and clinicians. Full of new ideas and provocative interpretations of the latest data, Periphery opens exciting avenues for medical research while deepening our understanding of a crucial and little appreciated biological system, foundational to all animal life.
Download or read book Future Directions for the Demography of Aging written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-07-21 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost 25 years have passed since the Demography of Aging (1994) was published by the National Research Council. Future Directions for the Demography of Aging is, in many ways, the successor to that original volume. The Division of Behavioral and Social Research at the National Institute on Aging (NIA) asked the National Academies of Sciences, Engineering, and Medicine to produce an authoritative guide to new directions in demography of aging. The papers published in this report were originally presented and discussed at a public workshop held in Washington, D.C., August 17-18, 2017. The workshop discussion made evident that major new advances had been made in the last two decades, but also that new trends and research directions have emerged that call for innovative conceptual, design, and measurement approaches. The report reviews these recent trends and also discusses future directions for research on a range of topics that are central to current research in the demography of aging. Looking back over the past two decades of demography of aging research shows remarkable advances in our understanding of the health and well-being of the older population. Equally exciting is that this report sets the stage for the next two decades of innovative researchâ€"a period of rapid growth in the older American population.
Download or read book Plant derived Bioactives written by Mallappa Kumara Swamy and published by Springer Nature. This book was released on 2020-05-11 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants produce a vast number of bioactive compounds with different chemical scaffolds, which modulate a diverse range of molecular targets and are used as drugs for treating numerous diseases. Most present-day medicines are derived either from plant compounds or their derivatives, and plant compounds continue to offer limitless reserves for the discovery of new medicines. While different classes of plant compounds, like phenolics, flavonoids, saponins and alkaloids, and their potential pharmacological applications are currently being explored, their curative mechanisms are yet to be understood in detail. This book is divided into 2 volumes and offers detailed information on plant-derived bioactive compounds, including recent research findings. Volume 1, Plant-derived Bioactives: Chemistry and Mode of Action, discusses the chemistry of highly valued plant bioactive compounds and their mode of actions at the molecular level. Volume 2, Plant-derived Bioactives: Production, Properties and Therapeutic Applications, explores the sources, biosynthesis, production, biological properties and therapeutic applications of plant bioactives. Given their scope, these books are valuable resources for members of the scientific community wishing to further explore various medicinal plants and the therapeutic applications of their bioactive compounds. They appeal to scholars, teachers and scientists involved in plant product research, and facilitate the development of innovative new drugs.
Download or read book Epigenetics of Aging and Longevity written by Alexey Moskalev and published by Academic Press. This book was released on 2017-11-17 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epigenetics of Aging and Longevity provides an in-depth analysis of the epigenetic nature of aging and the role of epigenetic factors in mediating the link between early-life experiences and life-course health and aging. Chapters from leading international contributors explore the effect of adverse conditions in early-life that may result in disrupted epigenetic pathways, as well as the potential to correct these disrupted pathways via targeted therapeutic interventions. Intergenerational epigenetic inheritance, epigenetic drug discovery, and the role of epigenetic mechanisms in regulating specific age-associated illnesses—including cancer and cardiovascular, metabolic, and neurodegenerative diseases—are explored in detail. This book will help researchers in genomic medicine, epigenetics, and biogerontology better understand the epigenetic determinants of aging and longevity, and ultimately aid in developing therapeutics to extend the human life-span and treat age-related disease. - Offers a comprehensive overview of the epigenetic nature of aging, as well as the impact of epigenetic factors on longevity and regulating age-related disease - Provides readers with clinical and epidemiological evidence for the role of epigenetic mechanisms in mediating the link between early-life experiences, life-course health and aging trajectory - Applies current knowledge of epigenetic regulatory pathways towards developing therapeutic interventions for age-related diseases and extending the human lifespan
Download or read book The Aging Mind written by National Research Council and published by National Academies Press. This book was released on 2000-04-18 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Possible new breakthroughs in understanding the aging mind that can be used to benefit older people are now emerging from research. This volume identifies the key scientific advances and the opportunities they bring. For example, science has learned that among older adults who do not suffer from Alzheimer's disease or other dementias, cognitive decline may depend less on loss of brain cells than on changes in the health of neurons and neural networks. Research on the processes that maintain neural health shows promise of revealing new ways to promote cognitive functioning in older people. Research is also showing how cognitive functioning depends on the conjunction of biology and culture. The ways older people adapt to changes in their nervous systems, and perhaps the changes themselves, are shaped by past life experiences, present living situations, changing motives, cultural expectations, and emerging technology, as well as by their physical health status and sensory-motor capabilities. Improved understanding of how physical and contextual factors interact can help explain why some cognitive functions are impaired in aging while others are spared and why cognitive capability is impaired in some older adults and spared in others. On the basis of these exciting findings, the report makes specific recommends that the U.S. government support three major new initiatives as the next steps for research.
Download or read book Hormones in Ageing and Longevity written by Suresh Rattan and published by Springer. This book was released on 2017-08-19 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multi-chapter book focuses on one of the hottest topics in ageing research – the role of hormones in health and longevity, offering a comprehensive and up-to-date overview of their mechanistic roles in health, ageing and longevity. Hormones are an excellent system of communication between cells and tissues within an organism, and they coordinate a wide range of processes in biological systems, including neuroendocrine and immunological controls. The book offers insights into the latest significant advances in our understanding of the mechanisms of hormonal signaling that control a variety of processes involved in development and ageing. It is divided into four parts: Part I includes a review of the hundred-year history of hormones by the illustrious hormone biochemist Dr. J.R. Tata. Part II presents various chapters on the hormones involved in growth, stress and metabolism, while Part III addresses the hormones controlling cognition and rhythms in ageing processes. Lastly, Part IV discusses the hormones affecting reproduction, immunity and life span. It also explores the use of hormones as pharmaceuticals to maintain health in the elderly. It is a valuable resource for those working in the area of hormone signaling in general and in the field of ageing research in particular.
Download or read book Ageing Slowly Living Longer written by Vinod Nikhra, M D and published by . This book was released on 2020-09-11 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: WELCOME TO THE WORLD OF LONGEVITYThe world today is fast progressing and we live in the unprecedented times. There is a boom of advances in every field, from the art to the science and technology. This includes health science, too. The wonderful advances in the field of medical science make it possible to cure acute disorders and, thus, avoiding untimely demise. The chronic diseases like obesity, diabetes, high blood pressure, heart disease, etc. can be efficiently managed leading to virtual freedom from their complications. There is, in general, an appreciable increase in life expectancy and lifespan. The ideology apart, health is the prime instrument that lets us enjoy life. The preservation of health is the best formula for longevity. A healthy food, adequate physical activity and wholesome lifestyle keep the daily attrition-related damage at minimum and retard ageing. An optimal healthcare adds further. An individual's life course may appear unpredictable, but it is not. The genetic and environmental factors, both being of equal importance, and behavioral patterns can successfully predict the life expectancy. The longer life is not separate from ageing slowly. They are mutually related.The life is an eternal truth. We are because we live. We find people ageing; we ourselves age and grow older. The phenomenon of ageing is universal in the kingdom of living. With time, all living beings age. Yet, ageing is an enigma. We do not understand it. We do not exactly know, what makes us age and grow old, finally losing vitality of life? Living a healthy and long life is a common dream. All of us nourish the dream; all of us wish to realize it. But various disorders and infirmities annihilate the dream. Falling prey to them, we lose our health and fitness, and pass through an abridged life. There have been immense developments in scientific research, including medical science. There has evolved a whole novel understanding of the biology of ageing. A vast body of knowledge can explain the changes that take place with ageing at molecular and cellular level. At the same time, the progress in healthcare and technology makes it possible to slow ageing. The science has progressed and there are futuristic visions of achieving significant longevity. There are possibilities of being able to reverse the ageing process. The eternal dream of immortality, is on the verge of becoming a reality. This book aims to provide answers to the questions related to ageing. It aims to explain ageing and charts out a program for slowing ageing. It also gives a peep into the futuristic visions of longevity and suggests scientific ways for a long life. Simultaneously, it is designed to educate you for fitness and to lead a healthy life. As you read through the book, you will find long-held views interspersed with shattering myths, and scientific facts intermingled with results from research and studies, which are still not out of the lab doors. It may seem at times, but the book is not a fiction. Neither, it is a concocted dream. The book is based on current state of scientific knowledge and gerontological research. I intend to share with you the current state of knowledge relating to ageing and gerontology. There are, to share with you, the facts and visions more eloquent than imaginations, and amazing thoughts amounting to the reality-pregnant-early-morning dreams. You will notice few things as you read through the book. Using certain words has been avoided. You will only rarely find the words like aged, old, etc. The words like elderly have been used very sparingly. This has been done purposely and is well in line with the central thought of the book, which is to come out of our age-old prejudices against the old age. So, I request you to read on. After all, theme of the book ageing slowly and living longer, as indicated by the title chosen, is of the prime concern to all of us. Your partner in healthy long life, Dr Vinod Nikhra, M.D.
Download or read book Resting Pulse Rate Reference Data for Children Adolescents and Adults written by Yechiam Ostchega and published by . This book was released on 2012 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
