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International Union of Physiological Sciences. Satellite Conference on Smooth Muscle Contraction,Marion J. Siegman,Andrew Paul Somlyo,Newman L. Stephens,International Union of Physiological Sciences. Congress
Author : International Union of Physiological Sciences. Satellite Conference on Smooth Muscle Contraction,Marion J. Siegman,Andrew Paul Somlyo,Newman L. Stephens,International Union of Physiological Sciences. Congress Publisher : New York : Liss Page : 544 pages File Size : 46,7 Mb Release : 1987 Category : Nature ISBN : UOM:39015012539279
Regulation and Contraction of Smooth Muscle by International Union of Physiological Sciences. Satellite Conference on Smooth Muscle Contraction,Marion J. Siegman,Andrew Paul Somlyo,Newman L. Stephens,International Union of Physiological Sciences. Congress Pdf
Author : Robert S. Moreland Publisher : Springer Science & Business Media Page : 547 pages File Size : 44,5 Mb Release : 2012-12-06 Category : Medical ISBN : 9781468460032
Regulation of Smooth Muscle Contraction by Robert S. Moreland Pdf
Sixth Annual Graduate Hospital Research Symposium REGULATION OF SMOOTH MUSCLE PROGRESS IN SOLVING THE PUZZLE Every so often a scientific conference comes at a time when everyone has new and exciting information, when old "dogmas" do not seem to be as well established, and when speakers and participants alike are ready to challenge interpretations of old and new experimental data. This was such a conference. What turns on a smooth muscle cell? The precise answer to this question has eluded scientists for much longer than I have been involved in the field. We know that an increase in cytosolic calcium is necessary and we know that phosphorylation of the 20 kDa myosin light chain is an important step in the process. We do not know if other processes are necessary for the initiation and lor maintenance of a smooth muscle contraction nor do we know if other processes modulate the regulation of contraction. The goal of the symposium on which this volume is based was to explore the most current hypotheses for the answers to these questions. I believe that after reading the chapters included in this volume, you will agree that this goal was achieved. The importance of calcium and calmodulin dependent myosin light chain phosphoryla tion in the regulation of smooth muscle contraction was reinforced by many presentations. However, the status of myosin light chain phosphorylation as a simple calcium dependent switch came under serious suspicion.
Author : Robert Fitridge,M. M. Thompson Publisher : University of Adelaide Press Page : 589 pages File Size : 53,8 Mb Release : 2011 Category : Medical ISBN : 9781922064004
Mechanisms of Vascular Disease by Robert Fitridge,M. M. Thompson Pdf
New updated edition first published with Cambridge University Press. This new edition includes 29 chapters on topics as diverse as pathophysiology of atherosclerosis, vascular haemodynamics, haemostasis, thrombophilia and post-amputation pain syndromes.
Three distinct types of contractions perform colonic motility functions. Rhythmic phasic contractions (RPCs) cause slow net distal propulsion with extensive mixing/turning over. Infrequently occurring giant migrating contractions (GMCs) produce mass movements. Tonic contractions aid RPCs in their motor function. The spatiotemporal patterns of these contractions differ markedly. The amplitude and distance of propagation of a GMC are several-fold larger than those of an RPC. The enteric neurons and smooth muscle cells are the core regulators of all three types of contractions. The regulation of contractions by these mechanisms is modifiable by extrinsic factors: CNS, autonomic neurons, hormones, inflammatory mediators, and stress mediators. Only the GMCs produce descending inhibition, which accommodates the large bolus being propelled without increasing muscle tone. The strong compression of the colon wall generates afferent signals that are below nociceptive threshold in healthy subjects. However, these signals become nociceptive; if the amplitudes of GMCs increase, afferent nerves become hypersensitive, or descending inhibition is impaired. The GMCs also provide the force for rapid propulsion of feces and descending inhibition to relax the internal anal sphincter during defecation. The dysregulation of GMCs is a major factor in colonic motility disorders: irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and diverticular disease (DD). Frequent mass movements by GMCs cause diarrhea in diarrhea predominant IBS, IBD, and DD, while a decrease in the frequency of GMCs causes constipation. The GMCs generate the afferent signals for intermittent short-lived episodes of abdominal cramping in these disorders. Epigenetic dysregulation due to adverse events in early life is one of the major factors in generating the symptoms of IBS in adulthood.
Biochemistry of Smooth Muscle Contraction by Michael Barany Pdf
This valuable resource provides a systematic account of the biochemistry of smooth muscle contraction. As a comprehensive guide to this rapidly growing area of research, it covers the structure and characteristic properties of contractile and regulatory proteins, with special emphasis on their predicted function in the live muscle. Also included in this book are intermediate filament proteins, and desmin and vimentin, whose function in smooth muscle is unknown; and several enzymes involved in the phosphorylation-dephosphorylation of contractile and other proteins.
J. Gordon Betts,Peter DeSaix,Jody E. Johnson,Oksana Korol,Dean H. Kruse,Brandon Poe,James A. Wise,Mark Womble,Kelly A. Young
Author : J. Gordon Betts,Peter DeSaix,Jody E. Johnson,Oksana Korol,Dean H. Kruse,Brandon Poe,James A. Wise,Mark Womble,Kelly A. Young Publisher : Unknown Page : 0 pages File Size : 47,7 Mb Release : 2013-04-25 Category : Electronic ISBN : 1947172808
Anatomy and Physiology by J. Gordon Betts,Peter DeSaix,Jody E. Johnson,Oksana Korol,Dean H. Kruse,Brandon Poe,James A. Wise,Mark Womble,Kelly A. Young Pdf
An Introduction to Smooth Muscle Mechanics (2nd Edition) by Chun Y. Seow Pdf
This second edition is an updated version of an introductory level textbook intended for students who are interested in understanding the mechanical properties of smooth muscle. Compared with skeletal and cardiac muscles, smooth muscle is the least understood in terms of its contraction mechanism and the structure of its contractile apparatus. Nevertheless, it is an important tissue that is vital in many organ functions, such as blood pressure control, intestinal peristalsis, and the emptying of the bladder. Dysfunction of the muscle has been implicated in many diseases such as high blood pressure, asthma, and overactive bladders. This is the only book-length treatment of functional models of a variety of smooth muscle behaviors with their corresponding mathematical descriptions, and offers an easy-to-follow, step-by-step mathematical derivation that will help students to appreciate the muscle cell as a fine-tuned aggregate of mechanisms governed by the fundamental laws of physics. In addition to providing a detailed description of the known subcellular structure and mechanical function of the contractile apparatus of smooth muscle, it also covers experimentation techniques, instrumentation, and data analysis. The book is a must-have information source for anyone interested in smooth muscle cell ultrastructure, physiology, biochemistry, and pharmacology.
A recent review of one of my grant applications commented on the ‘rediscovery of tropomyosin’. I was tempted to write back in my rebuttal to the reviewer that I didn’t realise it had been lost. Uncharacteristic maturity prevailed and I resisted the temptation, but I was struck by the underlying observation that research on the str- ture and function of tropomyosin has been somewhat invisible, particularly in terms of the cytoskeleton isoforms. So, how can it be that one of the two major components of the actin filament has been so thoroughly overlooked? I suspect that the answer is disappointingly pedestrian. Whereas the biochemistry of the 1980s revealed the potential of tropomyosin isoforms to diversify the function of actin filaments, the subsequent disenchantment with isoform biology in general in the 1990s inhibited growth of this field. With the development of more sophisticated experimental - proaches we are now seeing a growing realisation of the importance of tropomyosin in regulating actin filaments beyond its pivotal role in muscle contraction. The opportunity to edit this book came at a time when we had written several reviews on different aspects of tropomyosin function and I had just finished the background reading for a comprehensive review of tropomyosin biology. I realised that the field was simply beyond the capacity of any one person to do the field j- tice.
Regulation of the Contractile Cycle in Smooth Muscle by Takeshi Nakano,David J. Hartshorne Pdf
At the Mie International Symposium held in Japan in April 1994, leading scientists reviewed recent advances in the understanding of the contractile mechanism in smooth muscle. The present volume collects the papers presented at the symposium, summarizing the latest advances in smooth muscle function and emphasizing important components of the contraction-relaxation cycle. Topics include a discussion of the smooth muscle cell membrane, with emphasis on its ion channels; the regulation of cytosolic Ca2+ levels and the relationship to force in smooth muscle; aspects of the two key regulatory enzymes involved with myosin phosphorylation-dephosphorylation; the molecular basis for pharmacomechanical coupling in smooth muscle; developments in the basic contractile mechanisms involving the crossbridge cycle of tonic and phasic muscle; the role of myosin light chains; and many others. The approach is broad and presents contemporary opinions in pharmacology, physiology, and biochemistry as they relate to smooth muscle function. The book will appeal not only to those working in these disciplines, but to vascular clinicians, obstetric-gynecological physicians, and gastroenterologists as well.
Excitation-Contraction Coupling and Cardiac Contractile Force by Donald Bers Pdf
How is the heartbeat generated? What controls the strength of contraction of heart muscle? What are the links between cardiac structure and function? How does our understanding of skeletal and smooth muscle and non-muscle cells influence our thinking about force development in the heart? Are there important species differences in how contraction is regulated in the heart? How do the new molecular data fit together in understanding the heart beat? What goes wrong in ischemia, hypertrophy, and heart failure? This book paints a modern `portrait' of how the heart works and in this picture the author shows a close-up of the structural, biochemical, and physiological links between excitation and contraction. The author takes the reader through a series of important, interrelated topics with great clarity and continuity and also includes many useful illustrations and tables. The book starts by considering the cellular structures involved in excitation-contraction coupling and then described the characteristics of the myofilaments as the end effector of excitation-contraction coupling. A general scheme of calcium regulation is described and the possible sources and sinks of calcium are discussed in simple, but quantitative terms. The cardiac action potential and its many underlying currents are reviewed. Then the characteristics of some key calcium transport systems (calcium channels, sodium/calcium exchange and SR calcium uptake and release) are discussed in detail. This is then built into a more integrated picture of calcium regulation in succeeding chapters by detailed discussions of excitation-calcium coupling mechanisms (in skeletal, cardiac, and smooth muscle), the interplay between calcium regulatory processes, and finally mechanisms of cardiac inotropy, calcium overload, and dysfunction (e.g., ischemia, hypertrophy, and heart failure). Excitation-Contraction Coupling and Cardiac Contractile Force – Second Edition is an invaluable source of information for anyone who is interested in how the heart beat is controlled and especially suited for students of the cardiovascular system at all levels from medical/graduate students through senior investigators in related fields.
Vascular Pharmacology: Cytoskeleton and Extracellular Matrix by Anonim Pdf
Vascular Pharmacology: Cytoskeleton and Extracellular Matrix, Volume 81, contains the latest information on the vascular cytoskeleton and extracellular matrix that is presented with helpful illustrations and supporting references by prominent scientists and highly-recognized experts in the vascular field. Topics of interest in this new release include Pharmacology of the Vascular Cytoskeleton and Extracellular Matrix, The Dynamic Actin Cytoskeleton in Smooth Muscle, The Role of the Actin Cytoskeleton in the Regulation of Vascular Inflammation, The Smoothelin Family of Proteins and the Smooth Muscle Cell Contractile Apparatus, Smooth Muscle Cytoskeletal Network Regulates Expression of the Profibrotic Genes PAI-1 and CTGF, and more. Presents a must-read book on the vascular cytoskeleton and extracellular matrix Contains up-to-date information on the structure, function and development of the vascular cell cytoskeleton Includes contributors from prominent scientists and highly-recognized experts with major accomplishments in the fields of the vascular cytoskeleton, extracellular matrix, mechanotransduction and vascular remodeling
Muscle Physiology and Biochemistry by Shoichi Imai,Makoto Endo,Iwao Ohtsuki Pdf
The papers in this volume were contributed by close friends, co-workers and pupils of Professor Setsuro Ebashi. They are dedicated to him to commemorate his great and pioneering contribution to the advancement of muscle physiology and biochemistry, which, in time, exerted a great influence on the whole field of life science. We believe that this issue reveals the present state of research on muscle and/or calcium that was opened up by Professor Ebashi.
