Model Organisms In Aging Research Caenorhabditis Elegans
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Model Organisms In Aging Research Caenorhabditis Elegans
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Author : Maria Olivia Casanueva
language : en
Publisher: Frontiers Media SA
Release Date : 2023-01-11
Model Organisms In Aging Research Caenorhabditis Elegans written by Maria Olivia Casanueva and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-11 with Science categories.
The Molecular Genetics Of Aging
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Author : Siegfried Hekimi
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Molecular Genetics Of Aging written by Siegfried Hekimi and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The molecular genetics of aging or life-span determination is an expanding field. One reason is because many people would consider it desirable if hu man life span could be extended. Indeed, it is difficult not to be fascinated by tales of the life and death of people who have succeeded in living a very long life. Because of this, we have placed at the head of this book the chapter by Perls et al. on Centenerians and the Genetics of Longevity. Perls and his coauthors convincingly argue that, while the average life expectancy might be mostly determined by environmental factors because the average person has an average genotype, extremely long life spans are genetically determined. Of course, studying humans to uncover the genetics of aging is not ideal, not so much because one cannot easily perform experiments as because they live such a long time. This is why most of this book describes the current state of research with model organisms such as yeast, worms, flies, and mice. J aswinski focuses on yeast and how metabolic activity and stress resistance affect the longevity of Saccharomyces cerevisiae. In the process, he discusses the concept of aging as applied to a unicellular organism such as yeast and the importance of metabolism and stress resistance for aging in all organisms.
Aging Of Organisms
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Author : H.D. Osiewacz
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Aging Of Organisms written by H.D. Osiewacz and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
Biological aging as the time-depending general decline of biological systems associated with a progressively increasing mortality risk is a general phenomenom of great significance. The underlying processes are very complex and depending on genetic and environment factors. These factors encode or affect a network of interconnected cellular pathways. In no system this network has been deciphered in greater detail. However, the strategy of studying various biological systems has let to the identification of pathways and specific modules and makes it obvious that aging is the result of different overlapping mechanisms and pathways. Some of these appear to be conserved ("public") among species, others are specific or "private" and only of significance in one or a few organisms. This volume in the series on "Biology of aging and its modulation" specifically focuses on organismic aging. The book covers research on organisms from lower to higher complexity representing examples from very diverse taxa like photosynthetic plants, fungi, sponges, nematodes, flies, birds and mammals. Such a broad treatise of this complex topic provides a comprehensive "flavor" about the current issues dealt with in this rapidly growing scientific discipline.
Ageing Lessons From C Elegans
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Author : Anders Olsen
language : en
Publisher: Springer
Release Date : 2016-12-06
Ageing Lessons From C Elegans written by Anders Olsen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-06 with Medical categories.
This book brings together in one volume the current state of ageing research in the nematode Caenorhabditis elegans. The authors are leading researchers in the field, placing this topic in the context of human ageing, describing how and why basic discoveries in this simple organism have impacted our prospects for intervention in the ageing process. The authors cover a broad range of topics with regards to organismal and reproductive ageing including anatomical, physiological and biochemical changes, as well as genetic and environmental interventions that promote longevity and ameliorate age-related disease. Ageing is the single most important factor determining the onset of human disease in developed countries. With current worldwide demographic trends indicating that the number of individuals over the age of 65 will continue to rise, it is clear that an understanding of the processes that underpin ageing and age-related disease represents a key challenge in the biomedical sciences. In recent years there have been huge advances in our understanding of the ageing process and many of these have stemmed from genetic analysis of C. elegans. With no analogous book in this subject area this work will be of interest to a wide audience, ranging from academic researchers to the general public.
Aging Research In Yeast
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Author : Michael Breitenbach
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-11-19
Aging Research In Yeast written by Michael Breitenbach and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-11-19 with Science categories.
This volume includes contributions by the leading experts in the field of yeast aging. Budding yeast (Saccharomyces cerevisiae) and other fungal organisms provide models for aging research that are relevant to organismic aging and to the aging processes occurring in the human body. Replicative aging, in which only the mother cell ages while the daughter cell resets the clock to zero is a model for the aging of stem cell populations in humans, while chronological aging (measured by survival in stationary phase) is a model for the aging processes in postmitotic cells (for instance, neurons of the brain). Most mechanisms of aging are studied in yeast. Among them, this book discusses: mitochondrial theories of aging, emphasizing oxidative stress and retrograde responses; the role of autophagy and mitophagy; the relationship of apoptosis to aging processes; the role of asymmetric segregation of damage in replicative aging; the role of replication stress; and the role of the cytoskeleton in aging. Modern methods of yeast genetics and genomics are described that can be used to search for aging-specific functions in a genome-wide unbiased fashion. The similarities in the pathology of senescence (studied in yeast) and of cancer cells, including genome instability, are examined.
Comparative Biology Of Aging
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Author : Norman S. Wolf
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-01-08
Comparative Biology Of Aging written by Norman S. Wolf and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-08 with Medical categories.
determined by an inability to move in response to touch. C. elegans develop through four larval stages following hatching and prior to adulthood. Adult C. elegans are reproductive for about the rst week of adulthood followed by approximately two weeks of post-reproductive adulthood prior to death. Life span is most commonly measured in the laboratory by maintaining the worms on the surface of a nutrie- agar medium (Nematode Growth Medium, NGM) with E. coli OP50 as the bacterial food source (REF). Alternative culture conditions have been described in liquid media; however, these are not widely used for longevity studies. Longevity of the commonly used wild type C. elegans hermaphrodite (N2) varies ? from 16 to 23 days under standard laboratory conditions (20 C, NGM agar, E. coli OP50 food source). Life span can be increased by maintaining animals at lower ambient temperatures and shortened by raising the ambient temperature. Use of a killed bacterial food source, rather than live E. coli, increases lifespan by 2–4 days, and growth of adult animals in the absence of bacteria (axenic growth or bac- rial deprivation) increases median life span to 32–38 days [3, 23, 24]. Under both standard laboratory conditions and bacterial deprivation conditions, wild-derived C. elegans hermaphrodites exhibit longevity comparable to N2 animals [25].
Nematodes As Model Organisms
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Author : Itamar Glazer
language : en
Publisher: Cab International
Release Date : 2022
Nematodes As Model Organisms written by Itamar Glazer and has been published by Cab International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Biological models categories.
"Nematodes, especially Caenorhabditis elegans have been used as a model for research in molecular biology since the 1960's. This is a much-needed update on research on fundamental processes in areas such as genetics, developmental biology, nutrition, toxicology, ecology, pharmacology and medicine"--
Protein Metabolism And Homeostasis In Aging
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Author : Nektarios Tavernarakis
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-01-11
Protein Metabolism And Homeostasis In Aging written by Nektarios Tavernarakis and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-11 with Medical categories.
Aging is loosely defined as the accumulation of changes in an organism over time. At the cellular level such changes are distinct and multidimensional: DNA replication ceases, cells stop dividing, they become senescent and eventually die. DNA metabolism and chromosomal maintenance, together with protein metabolism are critical in the aging process. The focus of this book is on the role of protein metabolism and homeostasis in aging. An overview is provided of the current knowledge in the area, including protein synthesis, accuracy and repair, post-translational modifications, degradation and turnover, and how they define and influence aging. The chapters mainly focus on well-characterised factors and pathways, but new areas are also presented, where associations with aging are just being elucidated by current experimental data. Protein turnover, the balance between protein synthesis and protein degradation are carefully maintained in healthy cells. Chapters 1 and 2 illustrate that aging cells are characterised by alterations in the rate, level and accuracy of protein synthesis compared to young ones, and that mRNA translation, essential for cell growth and survival, is controlled at multiple levels. The theory that growth and somatic maintenance are believed to be antagonistic processes is described in Chapter 3: inhibition of protein synthesis results in decreased rates of growth and development, but also confers an extension of lifespan, as shown for example by the effects of dietary restriction in various models organisms.
Aging Mechanisms Ii
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Author : Nozomu Mori
language : en
Publisher: Springer Nature
Release Date : 2022-04-28
Aging Mechanisms Ii written by Nozomu Mori and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-04-28 with Medical categories.
This book describes the recent advancement of basic research on the biology of aging and longevity studies in various organisms, as well as the neurobiology of aging and neurodegeneration mechanisms. Chapters present new findings and conceptual developments concerning the basic mechanisms of aging and longevity determination. As a follow-up volume to the previous book Aging Mechanisms (2015), it overviews the rapid progress of aging research introducing new topics from leading laboratories in Japan. Chapter contributors are selected based on recent scientific achievements on the mechanisms of aging in various model organisms, including yeast, worm (C. elegans), fly (Drosophila), mice, and rats. Chapters are ordered from the discussion on molecular and cellular levels to physiological and systemic levels. The book also provides an overview of aging science in the region and helps readers quickly grasp who is doing what in this research area. As the aging of population becomes an ever more pressing issue in Asia, advancing the understanding of basic mechanisms of organism aging and longevity determination will be crucial to developing more effective therapies and protective strategies. Researchers and graduate students in biomedical aging research will find this as a rich source of information and a stimulus to novel research directions.
Sourcebook Of Models For Biomedical Research
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Author : P. Michael Conn
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-03-07
Sourcebook Of Models For Biomedical Research written by P. Michael Conn and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-03-07 with Medical categories.
The collection of systems represented in this volume is a unique effort to reflect the diversity and utility of models used in biomedicine. That utility is based on the consideration that observations made in particular organisms will provide insight into the workings of other, more complex systems. This volume is therefore a comprehensive and extensive collection of these important medical parallels.