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Author: Nektarios Tavernarakis
Publisher: Springer Science & Business Media
ISBN: 1441970029
Category : Medical
Languages : en
Pages : 268
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Book Description
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.
Author: Nektarios Tavernarakis
Publisher: Springer Science & Business Media
ISBN: 1441970029
Category : Medical
Languages : en
Pages : 268
Get Book Here
Book Description
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.
Author: Richard I. Morimoto
Publisher:
ISBN: 9781936113064
Category : Biological transport
Languages : en
Pages : 0
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Book Description
Proper folding of proteins is crucial for cell function. Chaperones and enzymes that post-translationally modify newly synthesized proteins help ensure that proteins fold correctly, and the unfolded protein response functions as a homeostatic mechanism that removes misfolded proteins when cells are stressed. This book covers the entire spectrum of proteostasis in healthy cells and the diseases that result when control of protein production, protein folding, and protein degradation goes awry.
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309172810
Category : Technology & Engineering
Languages : en
Pages : 448
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Book Description
It is a commonly held belief that athletes, particularly body builders, have greater requirements for dietary protein than sedentary individuals. However, the evidence in support of this contention is controversial. This book is the latest in a series of publications designed to inform both civilian and military scientists and personnel about issues related to nutrition and military service. Among the many other stressors they experience, soldiers face unique nutritional demands during combat. Of particular concern is the role that dietary protein might play in controlling muscle mass and strength, response to injury and infection, and cognitive performance. The first part of the book contains the committee's summary of the workshop, responses to the Army's questions, conclusions, and recommendations. The remainder of the book contains papers contributed by speakers at the workshop on such topics as, the effects of aging and hormones on regulation of muscle mass and function, alterations in protein metabolism due to the stress of injury or infection, the role of individual amino acids, the components of proteins, as neurotransmitters, hormones, and modulators of various physiological processes, and the efficacy and safety considerations associated with dietary supplements aimed at enhancing performance.
Author: Dominique Dardevet
Publisher: Academic Press
ISBN: 0128023759
Category : Technology & Engineering
Languages : en
Pages : 369
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Book Description
The Molecular Nutrition of Amino Acids and Proteins provides an in-depth look at the involvement and role of amino acids and proteins in molecular nutrition. Editor Dominique Dardevet has assembled a collection of chapters written by leading researchers and top professors that provide the reader with a comprehensive understanding of amino acids and proteins. The book provides an introduction to the fundamentals of amino acids and proteins as well as the composition of food. It then delves into the molecular biology of the cell and genetic machinery and its function. The Molecular Nutrition of Amino Acids and Proteins also features reference guides for terms and bullet-point summaries, making it readily accessible to novices while still providing the most up-to-date and detailed information that experienced researchers need. Provides a gentle introduction to the subject by first addressing nutritional information and then building in molecular aspects, clearly establishing fundamental information for the reader Facilitates reader comprehension by including succinct summary points in each chapter Contains a glossary of definitions that allows readers to easily reference terms Provides both a deep and broad understanding of the subject by containing overviews as well as detail-focused chapters
Author: Felipe Sierra
Publisher: Springer
ISBN: 3319232460
Category : Medical
Languages : en
Pages : 637
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Book Description
This book provides the first comprehensive overview of a new scientific discipline termed Geroscience. Geroscience examines the molecular and cellular mechanisms that might explain why aging is the main risk factor for most chronic diseases affecting the elderly population. Over the past few decades, researchers have made impressive progress in understanding the genetics, biology and physiology of aging. This book presents vital research that can help readers to better understand how aging is a critical malleable risk factor in most chronic diseases, which, in turn, could lead to interventions that can help increase a healthy lifespan, or ‘healthspan.’ The book begins with an analysis of the Geroscience hypothesis, as well as the epidemiological underpinnings that define aging as a candidate main risk factor for most chronic diseases. Next, each chapter focuses on one particular disease, or group of diseases, with an emphasis on how basic molecular and cellular biology might explain why aging is a major risk factor for it. Coverage in the book includes: cancer, cardiovascular disease, dementias, stroke, Parkinson's and Alzheimer’s diseases, osteoporosis, arthritis, diabetes asthma, emphysema, kidney disease, vision impairment, and AIDS/HIV. It finishes with a chapter on pain in the elderly and an overview of future steps needed to bring the newly acquired knowledge into the clinic and the public at large.
Author: Charles Tanford
Publisher: OUP Oxford
ISBN: 0191578517
Category : Science
Languages : en
Pages : 312
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Book Description
Proteins are amazingly versatile molecules. They make the chemical reactions happen that form the basis for life, they transmit signals in the body, they identify and kill foreign invaders, they form the engines that make us move, and they record visual images. All of this is now common knowledge, but it was not so a hundred years ago. Nature's Robots is an authoritative history of protein science, from the origins of protein research in the nineteenth century, when the chemical constitution of 'protein' was first studied and heatedly debated and when there was as yet no glimmer of the functional potential of substances in the 'protein' category, to the determination of the first structures of individual proteins at atomic resolution - when positions of individual atoms were first specified exactly and bonding between neighbouring atoms precisely defined. Tanford and Reynolds, who themselves made major contributions to the golden age of protein science, have written a remarkably vivid account of this history. It is a fascinating story, involving heroes from the past, working mostly alone or in small groups, usually with little support from formal research groups. It is also a story that embraces a number of historically important scientific controversies. Written in clear and accessible prose, Nature's Robots will appeal to general readers with an interest in popular science, in addition to professional scientists and historians of science.
Author: Irwin H. Rosenberg
Publisher: Karger Medical and Scientific Publishers
ISBN: 3805573219
Category : Science
Languages : en
Pages : 266
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Book Description
Humanity is aging. In the last century, life expectancy has increased by as much as 25 years, the greatest increase in 5'000 years of history. As a consequence the elderly constitute today the fastest growing segment of the world's population. This new situation creates many social problems and challenges to health care which both the developed as well as the developing countries will have to cope with. The present publication shows that scientific progress has reached a level where nutritional interventions may play a decisive part in the prevention of degenerative conditions of age, improvement of quality of life and impact on health care burden and resources. Topics deal with such different aspects as the influence of prenatal and early infant nutrition on the future aged individual and effects of energetic restriction on longevity. Further contributions include studies on mitochondrial alterations, digestive problems, specific metabolic deviations mediated by insulin, bone degradation, structural changes, neuromuscular dysfunctions, mental state of the elderly as well as the response of the immune system to nutrient intake. Finally the book offers a review of requirements appropriate to meet the age-related public health challenges of the 21st century.
Author: Angel L. Pey
Publisher: Academic Press
ISBN: 0128191333
Category : Science
Languages : en
Pages : 452
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Book Description
Protein Homeostasis Diseases: Mechanisms and Novel Therapies offers an interdisciplinary examination of the fundamental aspects, biochemistry and molecular biology of protein homeostasis disease, including the use of natural and pharmacological small molecules to treat common and rare protein homeostasis disorders. Contributions from international experts discuss the biochemical and genetic components of protein homeostasis disorders, the mechanisms by which genetic variants may cause loss-of-function and gain-of-toxic-function, and how natural ligands can restore protein function and homeostasis in genetic diseases. Applied chapters provide guidance on employing high throughput sequencing and screening methodologies to develop pharmacological chaperones and repurpose approved drugs to treat protein homeostasis disorders. - Provides an interdisciplinary examination of protein homeostasis disorders, with an emphasis on treatment strategies employing small natural and pharmacological ligands - Offers applied approaches in employing high throughput sequencing and screening to develop pharmacological chaperones to treat protein homeostasis disease - Gathers expertise from a range of international chapter authors who work across various biological methods and disease specific disciplines of relevance
Author: J. Gordon Betts
Publisher:
ISBN: 9781947172807
Category :
Languages : en
Pages : 0
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Book Description
Author: J. Robin Harris
Publisher: Springer
ISBN: 9811328358
Category : Medical
Languages : en
Pages : 531
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Book Description
This new volume in the Subcellular Biochemistry series will focus on the biochemistry and cellular biology of aging processes in human cells. The chapters will be written by experts in their respective fields and will focus on a number of the current key areas of research in subcellular aging research. Main topics for discussion are mitochondrial aging, protein homeostasis and aging and the genetic processes that are involved in aging. There will also be chapters that are dedicated to the study of the roles of a variety of vitamins and minerals on aging and a number of other external factors (microbiological, ROS, inflammation, nutrition). This book will provide the reader with a state of the art overview of the subcellular aging field. This book will be published in cooperation with a second volume that will discuss the translation of the cell biology of aging to a more clinical setting and it is hoped that the combination of these two volumes will bring a deeper understanding of the links between the cell and the body during aging.
