Should Hormesis Be the Default Model in Risk Assessment? PDF Download

Author: Edward J. Calabrese
Publisher: DIANE Publishing
ISBN: 1437904610
Category : Health & Fitness
Languages : en
Pages : 32

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Author: Mark P. Mattson
Publisher: Springer Science & Business Media
ISBN: 1607614952
Category : Medical
Languages : en
Pages : 219

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Book Description
Hormesis is a poorly understood phenomenon affecting all forms of life on earth. This groundbreaking book summarizes and analyzes the various positives of hormesis in an attempt to reveal hormesis as a fundamental principle of biomedical sciences as a whole.

Author: Suresh I. S. Rattan
Publisher: CRC Press
ISBN: 1482205459
Category : Medical
Languages : en
Pages : 386

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Book Description
Some mild stresses have positive effects on survival and aging as shown in animal models. There is also a large body of research that demonstrates these hormetic effects on aging, health, and resistance to severe stresses and diseases in human beings. However, the data are dispersed in the literature and are not always interpreted as hormetic effects. Hormesis in Health and Disease reviews the evidence for hormesis in humans as achieved through a variety of stresses or stimuli, and discusses mechanisms of hormesis and its ethical and legal issues. Divided into four sections, this book presents the current state of research, including questions, debates, doubts, and controversies in hormesis. Section I covers the history and terminology of hormesis, describing its main features and providing necessary background information. Section II shows that hormetic effects can be caused by various stresses—including physical exercise, nutritional components, fasting, micronutrients, irradiation, heat, ischemia, and mental challenge—and can be observed both in organs and at the organism level. Section III reviews possible mechanisms of hormesis that have been elucidated at this point. Section IV discusses the wider consequences hormesis may have for everyone. This book demonstrates that health beneficial hormetic effects do exist in human beings. It offers information to inspire key players to initiate new strategies to elucidate the strengths and limits of the dual nature of stress.

Author: T. D. Luckey
Publisher: CRC Press
ISBN: 9780849361593
Category : Medical
Languages : en
Pages : 320

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Book Description
Radiation Hormesis presents the only critical review of the effects of whole-body exposure to low doses of ionizing radiation in animals. This is a "must read" book for radiobiologists, health-conscious individuals, and serious environmentalists. Topics discussed include our radiation environment, radiation hormesis in cancer mortality, growth and development, reproduction and mutation, immunity, and cancer. Data is presented that indicates that low doses of ionizing radiation may actually be beneficial to human health. This information could invalidate the "zero thesis" and linear models used by most regulatory agencies. The implications regarding eliminating linear models and accepting radiation hormesis are also discussed.

Author: Jean-Francois Férard
Publisher: Springer
ISBN: 9789400750401
Category : Science
Languages : en
Pages : 0

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Book Description
With its 104 chapters, this Encyclopedia of aquatic ecotoxicology reveals the diversity of issues, problems and challenges that have faced, and are facing today, receiving environments. It also indicates ways by which tools, strategies and future investigations can contribute to correct, minimize, solve and prevent water quality degradation. Structured homogeneously, the chapters convey salient information on historical background, features, characteristics, uses and/or applications of treated topics, often complemented by illustrations and case studies, as well as by conclusions and prospects. This work is most suitable for teaching purposes. Academics, for example, could literally deliver comprehensive lectures to students simply based on chapter outlines and contents. Meet the Authors of the Encyclopedia! Check out 'Meet the Authors' under ADDITIONAL INFORMATION (Right menu).

Author: Carmel Mothersill
Publisher: Springer Science & Business Media
ISBN: 1402063334
Category : Science
Languages : en
Pages : 483

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Ecotoxiclogical risk from multiple stressors covers any situation where org- isms are exposed to a combination of environmental stressors. These include physical and chemical pollutants as well as other stressors such as parasites and environmental impact (e. g. , climate change or habitat loss). The combi- tion of stressors can result in increased risk to organisms (either additive or synergistic effects) or decreased effects (protective or antagonistic effects). The multiple stressor challenge is an international, multi-disciplinary problem requiring an international, multi-disciplinary approach. The c- rent approach to multiple stressors is to examine one stressor at a time and assume additivity. Little work has been done on combinations of stressors such that potential interactions can be determined. The problem is very complex. Multiple stressors pose a whole spectrum of challenges that range from basic science to regulation, policy and gove- ance. The challenges raise fundamental questions about our understanding of the basic biological response to stressors, as well as the implications of those uncertainties in environmental risk assessment and management. In addition to the great breadth, there is also great depth in the research ch- lenges, largely due to the complexity of the issues. From a basic science point of view, many of the mechanisms and processes under investigation are at the cutting edge of science — involving new paradigms such as genomic ins- bility and bystander effects.

Author: Eric Le Bourg
Publisher:
ISBN: 9781032920832
Category : Medical
Languages : en
Pages : 0

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Book Description
There is now a large amount of data available for human beings, showing health beneficial hormetic effects of mild stresses from physical, chemical, nutritional, and mental sources. However, these data are dispersed in the literature and not always interpreted as hormetic effects, thus restricting their full apprehension and application. A compr

Author: Suresh Rattan
Publisher: Academic Press
ISBN: 0128142545
Category : Medical
Languages : en
Pages : 327

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Book Description
The Science of Hormesis in Health and Longevity provides a comprehensive review of mild stress-induced physiological hormesis and its role in the maintenance and promotion of health. Coverage includes the underlying mechanisms of hormesis, including details of stress-response signaling, an enriched environment, positive challenges and dose-response mechanisms, amongst others. Research from top experts is presented to provide suggestions for developing novel therapeutic strategies, along with lifestyle interventions to promote health and homoeostasis. Researchers in aging and physiology, gerontologists, clinicians and medical students will find this a valuable addition for their work. - Provides a comprehensive, scholarly review of the current state of hormesis in physiology, health, disease and aging - Includes multiple perspectives and in-depth analysis by top experts involved in cutting-edge research to provide developing, novel therapeutic strategies, as well as lifestyle interventions - Offers a clear understanding of hormesis' underlying mechanisms, including details of stress-response signaling, an enriched environment, positive challenges, dose-response mechanisms, and more

Author: Edward J. Calabrese
Publisher: DIANE Publishing
ISBN: 1437902235
Category : Science
Languages : en
Pages : 20

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Book Description

Author: Jim E. Riviere
Publisher: CRC Press
ISBN: 1420018442
Category : Medical
Languages : en
Pages : 412

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Book Description
Highlighting the latest advances in molecular biology, mathematical modeling, quantitative risk assessment, and biopharmaceutical development, this reference presents how current scientific applications and methods impact and revolutionize mainstream toxicological research. Presenting findings from disciplines that will impact the future of toxicol