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A Living Model For Obesity And Aging Research
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Book Synopsis A Living Model for Obesity and Aging Research by : Peiyi Shen
Download or read book A Living Model for Obesity and Aging Research written by Peiyi Shen and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Caenorhabditis elegans (C. elegans) is a free-living nematode that has been extensively utilized as an animal model for the research involving aging and neurodegenerative diseases, like Alzheimer and Parkinson, etc. Compared with the traditional animal models, this nematode possesses many benefits, such as small body size, short lifespan, complete sequenced genome and more than 65% of the genes associated with human diseases. All these characteristics enable this organism to be an ideal living system for obesity and aging studies. Piceatannol is a natural stilbene with many beneficial effects, such as anti-oxidative, anti-inflammatory, anti-atherogenic activities, however, its role on fat accumulation and aging of whole organism is not known. Our results showed that piceatannol (50 and 100 [mu]M) significantly reduced fat accumulation of wild type worms grown in normal and high glucose conditions without altering the growth rate, worm length, pumping rate, or moving speed. The current study further indicated that piceatannol decreased the expression of sbp-1 (encodes an ortholog of mammalian sterol-regulatory-element-binding protein) and its target gene fasn-1 (encodes fatty acid synthase) as well as increased the expression of hosl-1 (encodes an ortholog of hormone-sensitive lipase) in glucose-treated worms. These data suggested that piceatannol reduced fat accumulation in C. elegans by suppression of genes involved in lipid synthesis and possibly through stimulation of lipolysis. Furthermore, piceatannol (50 and 100 [mu]M) significantly extended the lifespan of C. elegans and delayed the age-related decline of pumping rate and locomotive activity, and protected the worms from heat and oxidative stress. The current study further indicated that lifespan extension and enhanced stress resistance induced by piceatannol requires the insulin/IGF-1 signaling (IIS) pathway and sir-2.1 (encodes sirtuin). Research has shown that permethrin, a Type-I pyrethroid, increases triglyceride (fat) accumulation in adipocytes. Little is known, however, about any similar effect of deltamethrin, a Type-II pyrethroid, which produces a distinct syndrome of poisoning in mammals compared with permethrin. Our study indicated that deltamethrin (10 [mu]M) significantly increased the fat accumulation in wild type C. elegans and concomitantly reduced the total progeny number and locomotive activities in a dose-dependent manner. Deltamethrin increased fat accumulation via aak-2 (an ortholog of AMPK[alpha]) and nhr-49 (downstream target of aak-2 with function close to peroxisome proliferator-activated receptor-a) mediated mechanisms. The current study may have important implications in understanding effect of bioactive compounds as well as insecticides on the regulation of fat storage and healthy aging in humans.
Book Synopsis Explaining Divergent Levels of Longevity in High-Income Countries by : National Research Council
Download or read book Explaining Divergent Levels of Longevity in High-Income Countries written by National Research Council and published by National Academies Press. This book was released on 2011-06-27 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last 25 years, life expectancy at age 50 in the United States has been rising, but at a slower pace than in many other high-income countries, such as Japan and Australia. This difference is particularly notable given that the United States spends more on health care than any other nation. Concerned about this divergence, the National Institute on Aging asked the National Research Council to examine evidence on its possible causes. According to Explaining Divergent Levels of Longevity in High-Income Countries, the nation's history of heavy smoking is a major reason why lifespans in the United States fall short of those in many other high-income nations. Evidence suggests that current obesity levels play a substantial part as well. The book reports that lack of universal access to health care in the U.S. also has increased mortality and reduced life expectancy, though this is a less significant factor for those over age 65 because of Medicare access. For the main causes of death at older ages-cancer and cardiovascular disease-available indicators do not suggest that the U.S. health care system is failing to prevent deaths that would be averted elsewhere. In fact, cancer detection and survival appear to be better in the U.S. than in most other high-income nations, and survival rates following a heart attack also are favorable. Explaining Divergent Levels of Longevity in High-Income Countries identifies many gaps in research. For instance, while lung cancer deaths are a reliable marker of the damage from smoking, no clear-cut marker exists for obesity, physical inactivity, social integration, or other risks considered in this book. Moreover, evaluation of these risk factors is based on observational studies, which-unlike randomized controlled trials-are subject to many biases.
Author :Panel on New Directions in Social Demography, Social Epidemiology, and the Sociology of Aging Publisher :National Academies Press ISBN 13 :9780309292979 Total Pages :301 pages Book Rating :4.2/5 (929 download)
Book Synopsis New Directions in the Sociology of Aging by : Panel on New Directions in Social Demography, Social Epidemiology, and the Sociology of Aging
Download or read book New Directions in the Sociology of Aging written by Panel on New Directions in Social Demography, Social Epidemiology, and the Sociology of Aging and published by National Academies Press. This book was released on 2014-01-09 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aging of the population of the United States is occurring at a time of major economic and social changes. These economic changes include consideration of increases in the age of eligibility for Social Security and Medicare and possible changes in benefit levels. Furthermore, changes in the social context in which older individuals and families function may well affect the nature of key social relationships and institutions that define the environment for older persons. Sociology offers a knowledge base, a number of useful analytic approaches and tools, and unique theoretical perspectives that can facilitate understanding of these demographic, economic, and social changes and, to the extent possible, their causes, consequences and implications. The Future of the Sociology of Aging: An Agenda for Action evaluates the recent contributions of social demography, social epidemiology and sociology to the study of aging and identifies promising new research directions in these sub-fields. Included in this study are nine papers prepared by experts in sociology, demography, social genomics, public health, and other fields, that highlight the broad array of tools and perspectives that can provide the basis for further advancing the understanding of aging processes in ways that can inform policy. This report discusses the role of sociology in what is a wide-ranging and diverse field of study; a proposed three-dimensional conceptual model for studying social processes in aging over the life cycle; a review of existing databases, data needs and opportunities, primarily in the area of measurement of interhousehold and intergenerational transmission of resources, biomarkers and biosocial interactions; and a summary of roadblocks and bridges to transdisciplinary research that will affect the future directions of the field of sociology of aging.
Book Synopsis Successful Aging by : John Wallis Rowe
Download or read book Successful Aging written by John Wallis Rowe and published by Random House Large Print Publishing. This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the results of the MacArthur Foundation Study of Aging in America, which show how to maintain optimum physical and mental strength throughout later life.
Book Synopsis Weight Management by : Institute of Medicine
Download or read book Weight Management written by Institute of Medicine and published by National Academies Press. This book was released on 2003-12-01 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of fitness and body composition standards in the U.S. Armed Forces has always been to select individuals best suited to the physical demands of military service, based on the assumption that proper body weight and composition supports good health, physical fitness, and appropriate military appearance. The current epidemic of overweight and obesity in the United States affects the military services. The pool of available recruits is reduced because of failure to meet body composition standards for entry into the services and a high percentage of individuals exceeding military weight-for-height standards at the time of entry into the service leave the military before completing their term of enlistment. To aid in developing strategies for prevention and remediation of overweight in military personnel, the U.S. Army Medical Research and Materiel Command requested the Committee on Military Nutrition Research to review the scientific evidence for: factors that influence body weight, optimal components of a weight loss and weight maintenance program, and the role of gender, age, and ethnicity in weight management.
Book Synopsis Methods of Behavior Analysis in Neuroscience by : Jerry J. Buccafusco
Download or read book Methods of Behavior Analysis in Neuroscience written by Jerry J. Buccafusco and published by CRC Press. This book was released on 2000-08-29 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the most well-studied behavioral analyses of animal subjects to promote a better understanding of the effects of disease and the effects of new therapeutic treatments on human cognition, Methods of Behavior Analysis in Neuroscience provides a reference manual for molecular and cellular research scientists in both academia and the pharmaceutic
Book Synopsis Providing Healthy and Safe Foods As We Age by : Institute of Medicine
Download or read book Providing Healthy and Safe Foods As We Age written by Institute of Medicine and published by National Academies Press. This book was released on 2010-11-29 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Does a longer life mean a healthier life? The number of adults over 65 in the United States is growing, but many may not be aware that they are at greater risk from foodborne diseases and their nutritional needs change as they age. The IOM's Food Forum held a workshop October 29-30, 2009, to discuss food safety and nutrition concerns for older adults.
Book Synopsis The Mouse in Biomedical Research by : Henry Foster
Download or read book The Mouse in Biomedical Research written by Henry Foster and published by Elsevier. This book was released on 1981-01-01 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mouse in Biomedical Research, Volume I: History, Genetics, and Wild Mice focuses on the utility of the mouse as a laboratory animal in biomedical research. A historical perspective on the development and origins of the laboratory and wild mouse is given. The diversity of inbred strains of mice as well as the methods of developing and the genetic monitoring and testing of these strains are discussed. This volume consists of 14 chapters and begins with an overview of mice of the genus Mus and problems concerning evolution within the genus. The following chapters focus on taxonomy, nomenclature, and breeding systems, together with recombinant inbred and congenic resistant mouse strains. Methods of constructing, testing, and monitoring strains are described. Congenic strains, gene mapping, cytogenetics, and murine experimental studies are also considered, along with the histocompatibility-2 complex and radiation genetics. The final chapter is devoted to the pharmacogenetics of the laboratory mouse, paying particular attention to intoxication and detoxication pathways, genetically determined differences in xenobiotic metabolism, and pharmacogenetic polymorphisms. This book will be a useful reference for investigators using mice in many areas of research.
Book Synopsis The Next Four Decades by : Grayson K. Vincent
Download or read book The Next Four Decades written by Grayson K. Vincent and published by . This book was released on 2010 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is to present information on how the age structure of the overall population and the composition of the older population in terms of age, sex, race, and Hispanic origin are expected to change over the next four decades. Between 2010 and 2050, the United States is projected to experience rapid growth in its older population. In 2050, the number of Americans aged 65 and older is projected to be 88.5 million, more than double its projected population of 40.2 million in 2010. The baby boomers are largely responsible for this increase in the older population, as they will begin crossing into this category in 2011. The aging of the population will have wide-ranging implications for the country. As the United States ages over the next several decades, its older population will become more racially and ethnically diverse. Projecting the size and structure, in terms of age, sex, race, and Hispanic origin, of the older population is important to public and private interests, both socially and economically. The projected growth of the older population in the United States will present challenges to policy makers and programs, such as Social Security and Medicare. It will also affect families, businesses, and health care providers.
Book Synopsis Genes, Behavior, and the Social Environment by : Institute of Medicine
Download or read book Genes, Behavior, and the Social Environment written by Institute of Medicine and published by National Academies Press. This book was released on 2006-12-07 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past century, we have made great strides in reducing rates of disease and enhancing people's general health. Public health measures such as sanitation, improved hygiene, and vaccines; reduced hazards in the workplace; new drugs and clinical procedures; and, more recently, a growing understanding of the human genome have each played a role in extending the duration and raising the quality of human life. But research conducted over the past few decades shows us that this progress, much of which was based on investigating one causative factor at a time—often, through a single discipline or by a narrow range of practitioners—can only go so far. Genes, Behavior, and the Social Environment examines a number of well-described gene-environment interactions, reviews the state of the science in researching such interactions, and recommends priorities not only for research itself but also for its workforce, resource, and infrastructural needs.
Book Synopsis Cells and Surveys by : National Research Council
Download or read book Cells and Surveys written by National Research Council and published by National Academies Press. This book was released on 2001-01-19 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: What can social science, and demography in particular, reasonably expect to learn from biological information? There is increasing pressure for multipurpose household surveys to collect biological data along with the more familiar interviewer-respondent information. Given that recent technical developments have made it more feasible to collect biological information in non-clinical settings, those who fund, design, and analyze survey data need to think through the rationale and potential consequences. This is a concern that transcends national boundaries. Cells and Surveys addresses issues such as which biologic/genetic data should be collected in order to be most useful to a range of social scientists and whether amassing biological data has unintended side effects. The book also takes a look at the various ethical and legal concerns that such data collection entails.
Book Synopsis Demography of Aging by : National Research Council
Download or read book Demography of Aging written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the United States and the rest of the world face the unprecedented challenge of aging populations, this volume draws together for the first time state-of-the-art work from the emerging field of the demography of aging. The nine chapters, written by experts from a variety of disciplines, highlight data sources and research approaches, results, and proposed strategies on a topic with major policy implications for labor forces, economic well-being, health care, and the need for social and family supports.
Book Synopsis Epigenetics of Aging by : Trygve O. Tollefsbol
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.
Book Synopsis Interdisciplinary Nutritional Management and Care for Older Adults by : Ólöf G. Geirsdóttir
Download or read book Interdisciplinary Nutritional Management and Care for Older Adults written by Ólöf G. Geirsdóttir and published by Springer Nature. This book was released on 2021 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intro -- Foreword -- Acknowledgements -- Contents -- Part I: Nutritional Care in Geriatrics -- 1: Overview of Nutrition Care in Geriatrics and Orthogeriatrics -- 1.1 Defining Malnutrition -- 1.2 Nutrition Care in Older Adults: A Complex and Necessary Challenge -- 1.3 Malnutrition: A Truly Wicked Problem -- 1.4 Building the Rationale for Integrated Nutrition Care -- 1.5 Managing the Wicked Nutrition Problems with a SIMPLE Approach (or Other Tailored Models) -- 1.5.1 Keep It SIMPLE When Appropriate -- 1.5.2 A SIMPLE Case Example -- 1.5.2.1 S-Screen for Malnutrition -- 1.5.2.2 I-Interdisciplinary Assessment -- 1.5.2.3 M-Make the Diagnosis (es) -- 1.5.2.4 P-Plan with the Older Adult -- 1.5.2.5 L-Implement Interventions -- 1.5.2.6 E-Evaluate Ongoing Care Requirements -- 1.6 Bringing It All Together: Integrated Nutrition Care Across the Four Pillars of (Ortho) Geriatric Care -- 1.7 Summary: Finishing Off with a List of New Questions -- References -- Recommended Reading -- 2: Nutritional Requirements in Geriatrics -- 2.1 Nutritional Recommendations for Older Adults, Geriatric and Orthogeriatric Patients -- 2.2 Nutritional Recommendations for Older Adults -- 2.2.1 Energy Requirement and Recommended Intake -- 2.2.2 Protein Requirement and Recommended Intake -- 2.2.3 Micronutrients and Dietary Fibers -- 2.3 Nutritional Risk Factors in Older Adults -- 2.4 Estimating Intake in Older Adults -- 2.5 Nutritional Status of Older Adults, Geriatric and Orthogeriatric Patients -- 2.6 Summary -- References -- Recommended Reading -- 3: Nutritional Assessment, Diagnosis, and Treatment in Geriatrics -- 3.1 The Nutrition Care Process -- 3.2 Nutritional Screening/Risk Detection -- 3.3 Nutritional Assessment and Diagnosis -- 3.3.1 Nutrition Impact Symptoms -- 3.3.2 Nutritional Diagnosis -- 3.3.3 Etiologic Criteria.
Book Synopsis Retooling for an Aging America by : Institute of Medicine
Download or read book Retooling for an Aging America written by Institute of Medicine and published by National Academies Press. This book was released on 2008-08-27 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the first of the nation's 78 million baby boomers begin reaching age 65 in 2011, they will face a health care workforce that is too small and woefully unprepared to meet their specific health needs. Retooling for an Aging America calls for bold initiatives starting immediately to train all health care providers in the basics of geriatric care and to prepare family members and other informal caregivers, who currently receive little or no training in how to tend to their aging loved ones. The book also recommends that Medicare, Medicaid, and other health plans pay higher rates to boost recruitment and retention of geriatric specialists and care aides. Educators and health professional groups can use Retooling for an Aging America to institute or increase formal education and training in geriatrics. Consumer groups can use the book to advocate for improving the care for older adults. Health care professional and occupational groups can use it to improve the quality of health care jobs.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309474108 Total Pages :409 pages Book Rating :4.3/5 (94 download)
Book Synopsis Future Directions for the Demography of Aging by : National Academies of Sciences, Engineering, and Medicine
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 The Practical Guide written by and published by . This book was released on 2002 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
