Download or read book Mechanics and Energetics of the Myocardium written by Christian J.F. Holubarsch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: During several decades of this century, the classical physiological studies on the cardiovascular system have greatly improved our knowledge on the function of this system under normal and pathological conditions. This knowledge was the basis of the breakthrough for diagnostic techniques like the Swan-Ganz catheter, coronary arteriography, left and right heart biopsies, and invasive measurements of contractility, as well as therapeutic tools including aortocoronary bypass surgery, percutanous transluminal coronary angioplasty, and a broad field of pharmacological interventions for the whole spectrum of cardiovascular diseases, especially chronic heart failure. It was during the last decade that the scientific world focused on the evolution of molecular biology of the cardiovascular system so that cardiovascular physiology seemed to become less important. Regarding the myocardium, molecular alterations of important functional proteins (phenotype changes), as well as signal transduction pathways of contractility and cardiac growth have been elucidated. The functional importance of a number of genes has undoubtedly been proven with the help of transgenic animals. Mechanics and Energetics of the Myocardium provides an overview for those researchers and practioners interested in the broad field of molecular biology and physiology of the cardiovascular system.
Download or read book Cardiac Energetics written by R. Jacob and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assessment of cardiac energetics at the level of ATP-synthesis, chemomechanical energy transformation and whole organ dynamics as a function of haemodynamic load, ventricular configuration and oxygen- and substrates supply is basic to understanding cardiac function under physiological and pathophysiological (hypertrophy, hypoxia, ischaemia and heart failure) conditions. Moreover, cardiac energetics should be an important consideration in the choice and application of drugs especially in the case of vasodilators, inotropic agents and in cardioprotective measures. Only by considering energetics at the subcellular, cellular, and whole-heart level we can arrive at a better understanding of cardiac performance and ultimately better clinical judgement and drug therapy. Quantification of myocardial energetics will also help to determine the optimal time for surgical interventions such as valvular replacement or aneurysm resection. The present volume is the outcome of an international symposium on cardiac energetics held in Gargellen/Montafon (Austria), June 1986. The contributions will certainly help bridge the existing gap between basic research involving isolated structures and that involving the whole organ, on the one hand, and render the results derived from basic research applicable to clinical problems, on the other hand.
Download or read book Coronary Circulation and Energetics of the Myocardium written by G. Marchetti and published by . This book was released on 1967 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Progress in Failing Heart Syndrome written by Shigetake Sasayama and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heart failure is a syndrome caused by a heart dysfunction that leads to insuf ficient blood in the peripheral tissues for their metabolic demands. This syn drome still remains an obscure clinical entity and even its definition is disputed. It has become increasingly apparent that heart failure may relate not only to cardiac dysfunction but also to other physiological alterations involved in the maintenance of circulatory homeostasis. In 1988, the Japanese Circulation Society organized a three-year project for research on heart failure. The research group consisted of ten investigators, all relatively young but well recognized internationally for their research accomplishments. This book represents a compilation of the achievements by this group during the past three years which have led to new insights into the pathophysiologic mechanisms of heart failure, and diagnosis, evaluation and treatment of this syndrome. Contents include research into the cellular biology of congestive heart failure, and a framework of pressure-volume relationships enabling assessment of ventricular contraction energetics or coupling of ventricular properties and arterial load. This conceptual framework is of vital significance, particularly when we consider the failing heart as an energy-depleted state. An understanding of the neuroendocrine responses to explain the pathophy siology of congestive heart failure is perhaps the most important advance, and has led to new developments in therapy. This book also includes an analysis of mechanical factors, including both regional, and global ventricular functions, and this is related to the under standing of the pathophysiology of congestive heart failure.
Download or read book Subject Index of Current Research Grants and Contracts Administered by the National Heart Lung and Blood Institute written by National Heart, Lung, and Blood Institute and published by . This book was released on 1975 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Awards Index written by and published by . This book was released on 1985 with total page 1588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiac Mechanics and Function in the Normal and Diseased Heart written by Masatsugu Hori and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiovascular dynamics is a field in which modelling and systems analysis have formed an extremely important discipline. For example, understanding of even such a fundamental function of the circulation as the relationship between central venous pressure apd cardiac output has required evolution of a pertinent model based on years of exhaustive ex perimental investigations by Starling, Starr, and Guyton. Hemodynamic analyses of pulsatile pressures and flows in the arteries and veins have been a continuing challenge taken up by champions of fluid dynamics such as Frank, Wetterer, Taylor, and Wormersley, just to mention a few names, and some kind of model was always proposed as a conceptual framework. An even greater challenge to cardiovascular dynamicists was how to analyze the intermittent coupling of the ventricle and the arterial or venous vasculature through the valve. The availability of numerical solutions by computer and the recently evolved ventricular model with a time-varying elastance and a pressure-dependent internal resistance opened the way to analysis of this coupling. The ever increasing speed of computers has also facilitated trips between the fre quency and the time domain, even on-line for some experimental studies. This book contains many analyses dedicated to the interactions between the heart and the vasculature, providing the reader with findings at the cutting edge of current research in this field.
Download or read book Physiology of the Heart written by Arnold M. Katz and published by Lippincott Williams & Wilkins. This book was released on 2006 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Incorporating the latest molecular biology research, this title explores the clinical applications of such knowledge, covering the physiological & biophysical basis of cardiac function.
Download or read book Biomedical Engineering Fundamentals written by Joseph D. Bronzino and published by CRC Press. This book was released on 2014-12-17 with total page 1144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Known as the bible of biomedical engineering, The Biomedical Engineering Handbook, Fourth Edition, sets the standard against which all other references of this nature are measured. As such, it has served as a major resource for both skilled professionals and novices to biomedical engineering.Biomedical Engineering Fundamentals, the first volume of
Download or read book The Biomedical Engineering Handbook written by Joseph D. Bronzino and published by CRC Press. This book was released on 2018-10-03 with total page 5245 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive bible for the field of biomedical engineering, this collection of volumes is a major reference for all practicing biomedical engineers and students. Now in its fourth edition, this work presents a substantial revision, with all sections updated to offer the latest research findings. New sections address drugs and devices, personalized medicine, and stem cell engineering. Also included is a historical overview as well as a special section on medical ethics. This set provides complete coverage of biomedical engineering fundamentals, medical devices and systems, computer applications in medicine, and molecular engineering.
Download or read book Biomechanics written by Donald R. Peterson and published by CRC Press. This book was released on 2014-12-13 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents Current Principles and Applications Biomedical engineering is considered to be the most expansive of all the engineering sciences. Its function involves the direct combination of core engineering sciences as well as knowledge of nonengineering disciplines such as biology and medicine. Drawing on material from the biomechanics section of The Biomedical Engineering Handbook, Fourth Edition and utilizing the expert knowledge of respected published scientists in the application and research of biomechanics, Biomechanics: Principles and Practices discusses the latest principles and applications of biomechanics and outlines major research topics in the field. This book contains a total of 20 chapters. The first group of chapters explores musculoskeletal mechanics and includes hard and soft-tissue mechanics, joint mechanics, and applications related to human function. The next group of chapters covers biofluid mechanics and includes a wide range of circulatory dynamics, such as blood vessel and blood cell mechanics and transport. The following group of chapters introduces the mechanical functions and significance of the human ear, including information on inner ear hair cell mechanics. The remaining chapters introduce performance characteristics of the human body system during exercise and exertion. Introduces modern viewpoints and developments Highlights cellular mechanics Presents material in a systematic manner Contains over 100 figures, tables, and equations Biomechanics: Principles and Practices functions as a reference for the practicing professional as well as an introduction for the bioengineering graduate student with a focus in biomechanics, biodynamics, human performance engineering, and human factors.
Download or read book Mechano Calcium Mechano Electric and Mechano Metabolic Feedback Loops Contribution to the Myocardium Contraction in Health and Diseases written by Leonid Katsnelson and published by Frontiers Media SA. This book was released on 2021-06-01 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation and Imaging of the Cardiac System written by S. Sideman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultrasound velocity tomography allows measurement of cardiac geometries for various phases in the cardiac cycle. The present tomograph makes reconstruc tions at intervals of 20 ms. Because of a lack of clear (intramural) landmarks (except the roots of the papillairy muscle), it is difficult to pinpoint spatial trajectories of particular points in the heart. Therefore, a second method was developed of injecting radiopaque markers in the heart and following their motion patterns during the cardiac cycle with help of a biplane X-ray equipment. The data obtained with both methods can be implemented in our finite element model of the heart to compute intramural stresses and strains. The results obtained sofar with the extended Darcy equation to account for the interaction of blood rheology and tissue mechanics look promising. Further testing with more sophisticated subjects than mentioned in Figure 9 is required before it will be implemented in our finite element model of the heart. We conclude that analysis of regional cardiac function, including regional myocardial blood flow, requires still a major research effort but the results obtained sofar justify, to our opinion, a continuation in this direction. Acknowledgement The authors acknowledge Dr. C. Borst and coworkers for doing the animal experiments and prof. Van Campen and dr. Grootenboer for their participation is some aspects of this work.
Download or read book Biomedical Index to PHS supported Research pt A Subject access A H written by and published by . This book was released on 1994 with total page 1398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomedical Index to PHS supported Research written by and published by . This book was released on 1987 with total page 1398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiac Energy Metabolism in Health and Disease written by Gary D. Lopaschuk and published by Springer. This book was released on 2014-08-22 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The heart has a very high energy demand but very little energy reserves. In order to sustain contractile function, the heart has to continually produce a large amount of ATP. The heart utilizes free fatty acids mainly and carbohydrates to some extent as substrates for making energy and any change in this energy supply can seriously compromise cardiac function. It has emerged that alterations in cardiac energy metabolism are a major contributor to the development of a number of different forms of heart disease. It is also now known that optimizing energy metabolism in the heart is a viable and important approach to treating various forms of heart disease. Cardiac Energy Metabolism in Health and Disease describes the research advances that have been made in understanding what controls cardiac energy metabolism at molecular, transcriptional and physiological levels. It also describes how alterations in energy metabolism contribute to the development of heart dysfunction and how optimization of energy metabolism can be used to treat heart disease. The topics covered include a discussion of the effects of myocardial ischemia, diabetes, obesity, hypertrophy, heart failure, and genetic disorders of mitochondrial oxidative metabolism on cardiac energetics. The treatment of heart disease by optimizing energy metabolism is also discussed, which includes increasing overall energy production as well as increasing the efficiency of energy production and switching energy substrate preference of the heart. This book will be a valuable source of information to graduate students, postdoctoral fellows, and investigators in the field of experimental cardiology as well as biochemists, physiologists, pharmacologists, cardiologists, cardiovascular surgeons and other health professionals.
Download or read book Cardiac Adaptation and Failure written by Masatsugu Hori and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in cellular physiology and molecular biology have now disclosed the metabolic changes and adaptational responses of the heart to various kinds of stresses. Topics covered in this volume include the regulation of myocardial proteins in mechanical overload, the alteration of adrenoceptors in the stressed heart, metabolic adaptation in cardiac hypertrophy, intracellular calcium metabolism in the ischemia-reperfused myocardium, calcium overload as a cause of myocardial stunning, acquisition of ischemic tolerance by ischemic preconditioning, factors that accelerate myocardial injury, and ventricular remodeling in the ischemic heart. As an update of the latest findings in basic cardiology, this book will benefit both researchers and clinical practitioners.
