Biophysical Aspects of Cardiac Muscle PDF Download
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Author: Martin Morad
Publisher: Elsevier
ISBN: 0323150705
Category : Science
Languages : en
Pages : 431
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Book Description
Biophysical Aspects of Cardiac Muscle is based on the proceedings of the first cardiac muscle symposium held May 1977, at the Pahlavi University in Shiraz, Iran. The compendium deals with topics on the gating processes in excitable membranes; ionic transport mechanisms in the generation of cardiac action potential plateau; structure and function of the sarcotubular system; excitation-contraction coupling in heart muscle; and mechanisms of drug action in cardiac muscle. The book will be of value to physicians, cardiologists, physiologists, and researchers in the field of medicine and anatomy.
Author: Martin Morad
Publisher: Elsevier
ISBN: 0323150705
Category : Science
Languages : en
Pages : 431
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Book Description
Biophysical Aspects of Cardiac Muscle is based on the proceedings of the first cardiac muscle symposium held May 1977, at the Pahlavi University in Shiraz, Iran. The compendium deals with topics on the gating processes in excitable membranes; ionic transport mechanisms in the generation of cardiac action potential plateau; structure and function of the sarcotubular system; excitation-contraction coupling in heart muscle; and mechanisms of drug action in cardiac muscle. The book will be of value to physicians, cardiologists, physiologists, and researchers in the field of medicine and anatomy.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: R. John Solaro
Publisher: Springer
ISBN: 9781493901852
Category : Medical
Languages : en
Pages : 260
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Book Description
Author: R. John Solaro
Publisher: Springer Science & Business Media
ISBN: 146147678X
Category : Science
Languages : en
Pages : 254
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Book Description
Subjects in the monograph “Biophysics of the Failing Heart” include state of the art chapters considering major biophysical mechanisms for why hearts responding to acquired or inherited stressors enter into maladaptive processes eventually leading to an inability of the heart to respond efficiently to hemodynamic loads especially during exercise. The chapters describe biophysical techniques that have been applied to determine the triggers for the heart failure process as well as the mechanisms for sustaining the disorders. These techniques include measurements of active and passive mechanical properties and hemodynamics at levels of organization ranging from molecules to hearts beating in situ. Biophysical concepts and approaches are also applied to determination of signaling and signal transduction, energetics, ionic currents, transport processes, electro-chemical and chemo-mechanical coupling. By its emphasis on biophysical aspects of a prevalent clinical condition, the monograph is unique in its perspective and focus. The breadth of information in the chapters all in one place will be of value to clinicians and researchers at all levels. Modern research approaches and clinical understanding of heart failure demands integration of multiple aspects of the disorders. In most cases, combinations of clinician scientists and researchers author the chapters. A main benefit of the book is couched in its didactic approach together with its emphasis on how biophysical concepts and techniques aid in diagnosis and development of new therapies.
Author: R. Jacob
Publisher: Springer-Verlag
ISBN: 3642852998
Category : Medical
Languages : de
Pages : 229
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Book Description
Author: Leon Glass
Publisher: Springer Science & Business Media
ISBN: 1461231183
Category : Science
Languages : en
Pages : 617
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Book Description
In recent years there has been a growth in interest in studying the heart from the perspective of the physical sciences: mechanics, fluid flow, electromechanics. This volume is the result of a workshop held in July 1989 at the Institute for Nonlinear Sciences at the University of California at San Diego that brought together scientists and clinicians with graduate students and postdoctoral fellows who shared an interest in the heart. The chapters were prepared by the invited speakers as didactic reviews of their subjects but also include the structure, mechanical properties, and function of the heart and the myocardium, electrical activity of the heart and myocardium, and mathematical models of heart function.
Author: Arnold M. Katz
Publisher: Lippincott Williams & Wilkins
ISBN: 1608311716
Category : Medical
Languages : en
Pages : 592
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Book Description
Dr. Arnold Katz's internationally acclaimed classic, Physiology of the Heart, is now in its thoroughly revised Fifth Edition, incorporating the latest molecular biology research and extensively exploring the clinical applications of these findings. In the single authored, expert voice that is this book's unique strength, Dr. Katz provides a comprehensive overview of the physiological and biophysical basis of cardiac function, beginning with structure and proceeding to biochemistry, biophysics, and pathophysiology in arrhythmias, ischemia, and heart failure. Emphasis is on the interrelationships of basic processes among the cell, cardiac muscle function, and the biophysics of contractile and electrical behavior. This edition includes new material on cell signaling and molecular biology.
Author: New York Heart Association
Publisher:
ISBN:
Category : Myocardium
Languages : en
Pages : 232
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Book Description
Author: R. John Solaro
Publisher: Biota Publishing
ISBN: 1615041753
Category : Medical
Languages : en
Pages : 46
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Book Description
Contractility describes the relative ability of the heart to eject a stroke volume (SV) at a given prevailing afterload (arterial pressure) and preload (end-diastolic volume; EDV). Various measures of contractility are related to the fraction as the SV/EDV or the ejection fraction, and the dynamics of ejection as determined from maximum pressure rise in the ventricles or arteries or from aortic flow velocities determined by echocardiography. At the cellular level, the ultimate determinant of contractility is the relative tension generation and shortening capability of the molecular motors (myosin cross-bridges) of the sarcomeres as determined by the rates and extent of Ca activation, the turnover kinetics of the cross-bridges, and the relative Ca responsiveness of the sarcomeres. Engagement of the regulatory signaling cascades controlling contractility occurs with occupancy and signal transduction by receptors for neurohumors of the autonomic nervous system as well as growth and stress signaling pathways. Contractility is also determined by the prevailing conditions of pH, temperature, and redox state. Short-term control of contractility is fully expressed during exercise. In long-term responses to stresses on the heart, contractility is modified by cellular remodeling and altered signaling that may compensate for a time but which ultimately may fail, leading to disorders.
Author: Rassier Dilson J.E
Publisher: Springer Science & Business Media
ISBN: 1441963669
Category : Science
Languages : en
Pages : 360
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Book Description
Muscle contraction has been the focus of scientific investigation for more than two centuries, and major discoveries have changed the field over the years. Early in the twentieth century, Fenn (1924, 1923) showed that the total energy liberated during a contraction (heat + work) was increased when the muscle was allowed to shorten and perform work. The result implied that chemical reactions during contractions were load-dependent. The observation underlying the “Fenn effect” was taken to a greater extent when Hill (1938) published a pivotal study showing in details the relation between heat production and the amount of muscle shortening, providing investigators with the force-velocity relation for skeletal muscles. Subsequently, two papers paved the way for the current paradigm in the field of muscle contraction. Huxley and Niedergerke (1954), and Huxley and Hanson (1954) showed that the width of the A-bands did not change during muscle stretch or activation. Contraction, previously believed to be caused by shortening of muscle filaments, was associated with sliding of the thick and thin filaments. These studies were followed by the classic paper by Huxley (1957), in which he conceptualized for the first time the cross-bridge theory; filament sliding was driven by the cyclical interactions of myosin heads (cross-bridges) with actin. The original cross-bridge theory has been revised over the years but the basic features have remained mostly intact. It now influences studies performed with molecular motors responsible for tasks as diverse as muscle contraction, cell division and vesicle transport.
