Author: Louise Deldicque
Publisher: VDM Publishing
ISBN: 9783836492355
Category : Science
Languages : de
Pages : 264
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Book Description
A significant advance in understanding skeletal muscle adaptation to physical training has been the observation that nutrients and exercise work in synergy to enhance muscle protein synthesis. Physical activity triggers an adaptive response to which nutrition provides the necessary building blocks for an optimal response. The aim of the present work is to contribute to the understanding of the molecular events induced by exercise or nutrients (creatine and amino acids) to create the adaptive environment and to induce the cellular adaptation and growth, respectively. Amino acids influence the expression of muscle-specific genes and regulate mTOR, a kinase implicated in the control of protein translation. We have highlighted that changes in the phosphorylation state of mTOR do not necessarily lead to changes in the rate of protein synthesis. In vitro, creatine largely enhances protein anabolism and cell differentiation. We have identified the p38 and the Akt/PKB pathways as mediators of these effects. Nevertheless we were unable to confirm the existence of similar events in human skeletal muscle in vivo.
Author: Olasunkanmi Adegoke
Publisher: Frontiers Media SA
ISBN: 2889746992
Category : Science
Languages : en
Pages : 158
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Book Description
Author: J. Gordon Betts
Publisher:
ISBN: 9781947172807
Category :
Languages : en
Pages : 0
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Book Description
Author: Mark Hargreaves
Publisher: Human Kinetics
ISBN: 9780736041034
Category : Energy metabolism
Languages : en
Pages : 320
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Book Description
A comprehensive reference for biochemists, sport nutritionists, exercise physiologists, and graduate students in those disciplines. Provides information on the metabolic processes that take place during exercise, examining in depth the mobilization and utilization of substrates during physical activity. Focuses primarily on the skeletal muscle, but also discusses the roles of the liver and adipose tissue. Annotation copyright by Book News, Inc., Portland, OR
Author: Lindsay Biga
Publisher:
ISBN: 9781955101158
Category :
Languages : en
Pages :
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Book Description
A version of the OpenStax text
Author: Michael J. Joyner
Publisher: Perspectives Cshl
ISBN: 9781621821656
Category : Medical
Languages : en
Pages : 408
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Book Description
Exercise training provokes widespread transformations in the human body, requiring coordinated changes in muscle composition, blood flow, neuronal and hormonal signaling, and metabolism. These changes enhance physical performance, improve mental health, and delay the onset of aging and disease. Understanding the molecular basis of these changes is therefore important for optimizing athletic ability and for developing drugs that elicit therapeutic effects. Written and edited by experts in the field, this collection from Cold Spring Harbor Perspectives in Medicine examines the biological basis of exercise from the molecular to the systemic levels. Contributors discuss how transcriptional regulation, cytokine and hormonal signaling, glucose metabolism, epigenetic modifications, microRNA profiles, and mitochondrial and ribosomal functions are altered in response to exercise training, leading to improved skeletal muscle, hippocampal, and cardiovascular function. Cross talk among the pathways underlying tissue-specific and systemic responses to exercise is also considered. The authors also discuss how the understanding of such molecular mechanisms may lead to the development of drugs that mitigate aging and disease. This volume will therefore serve as a vital reference for all involved in the fields of sports science and medicine, as well as anyone seeking to understand the molecular mechanisms by which exercise promotes whole-body health.
Author: Andreas Rummel
Publisher: Springer
ISBN: 9783642448898
Category : Medical
Languages : en
Pages : 0
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Book Description
The extremely potent substance botulinum neurotoxin (BoNT) has attracted much interest in diverse fields. Originally identified as cause for the rare but deadly disease botulism, military and terrorist intended to misuse this sophisticated molecule as biological weapon. This caused its classification as select agent category A by the Centers for Diseases Control and Prevention and the listing in the Biological and Toxin Weapons Convention. Later, the civilian use of BoNT as long acting peripheral muscle relaxant has turned this molecule into an indispensable pharmaceutical world wide with annual revenues >$1.5 billion. Also basic scientists value the botulinum neurotoxin as molecular tool for dissecting mechanisms of exocytosis. This book will cover the most recent molecular details of botulinum neurotoxin, its mechanism of action as well as its detection and application.
Author: Ronald J. Korthuis
Publisher: Morgan & Claypool Publishers
ISBN: 1615041834
Category : Medical
Languages : en
Pages : 147
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Book Description
The aim of this treatise is to summarize the current understanding of the mechanisms for blood flow control to skeletal muscle under resting conditions, how perfusion is elevated (exercise hyperemia) to meet the increased demand for oxygen and other substrates during exercise, mechanisms underlying the beneficial effects of regular physical activity on cardiovascular health, the regulation of transcapillary fluid filtration and protein flux across the microvascular exchange vessels, and the role of changes in the skeletal muscle circulation in pathologic states. Skeletal muscle is unique among organs in that its blood flow can change over a remarkably large range. Compared to blood flow at rest, muscle blood flow can increase by more than 20-fold on average during intense exercise, while perfusion of certain individual white muscles or portions of those muscles can increase by as much as 80-fold. This is compared to maximal increases of 4- to 6-fold in the coronary circulation during exercise. These increases in muscle perfusion are required to meet the enormous demands for oxygen and nutrients by the active muscles. Because of its large mass and the fact that skeletal muscles receive 25% of the cardiac output at rest, sympathetically mediated vasoconstriction in vessels supplying this tissue allows central hemodynamic variables (e.g., blood pressure) to be spared during stresses such as hypovolemic shock. Sympathetic vasoconstriction in skeletal muscle in such pathologic conditions also effectively shunts blood flow away from muscles to tissues that are more sensitive to reductions in their blood supply that might otherwise occur. Again, because of its large mass and percentage of cardiac output directed to skeletal muscle, alterations in blood vessel structure and function with chronic disease (e.g., hypertension) contribute significantly to the pathology of such disorders. Alterations in skeletal muscle vascular resistance and/or in the exchange properties of this vascular bed also modify transcapillary fluid filtration and solute movement across the microvascular barrier to influence muscle function and contribute to disease pathology. Finally, it is clear that exercise training induces an adaptive transformation to a protected phenotype in the vasculature supplying skeletal muscle and other tissues to promote overall cardiovascular health. Table of Contents: Introduction / Anatomy of Skeletal Muscle and Its Vascular Supply / Regulation of Vascular Tone in Skeletal Muscle / Exercise Hyperemia and Regulation of Tissue Oxygenation During Muscular Activity / Microvascular Fluid and Solute Exchange in Skeletal Muscle / Skeletal Muscle Circulation in Aging and Disease States: Protective Effects of Exercise / References
Author: David A. Bender
Publisher: Cambridge University Press
ISBN: 1139437739
Category : Science
Languages : en
Pages : 514
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Book Description
An authoritative and comprehensive review of our current knowledge of the vitamins, their metabolic functions and the scientific basis for setting recommended intakes for the prevention of deficiency and promotion of optimum health. This publication will be a valuable reference for students and specialists alike in the field of nutritional biochemistry.
Author: Michael N. Hall
Publisher: CSHL Press
ISBN: 9780879696726
Category : Science
Languages : en
Pages : 668
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Book Description
Recent breakthroughs in the field of cell growth, particularly in the control of cell size, are reviewed by experts in the three major divisions of the field: growth of individual cells, growth of organs, and regulation of cell growth in the contexts of development and cell division. This book is an introductory overview of the field and should be adaptable as a textbook.
