Download or read book Excitation Contraction Coupling and Cardiac Contractile Force written by Donald Bers and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Regulation of Cardiac Contractility written by R. John Solaro and published by Biota Publishing. This book was released on 2011-04-01 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Regulation of Coronary Blood Flow written by Michitoshi Inoue and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.
Download or read book THE FORCE OF A FULL HEART written by and published by . This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ventricular Function written by David C. Warltier and published by Lippincott Williams & Wilkins. This book was released on 1995 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiovascular Physiology Concepts written by Richard E. Klabunde and published by Lippincott Williams & Wilkins. This book was released on 2020-12-01 with total page 689 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praised for its concise coverage, this highly accessible monograph lays a foundation for understanding the underlying concepts of normal cardiovascular function and offers a welcome alternative to a more mechanistically oriented approach or an encyclopedic physiology text. Clear explanations, ample illustrations and engaging clinical cases and problems provide the perfect guidance for self-directed learning and prepare you to excel in clinical practice.
Download or read book Anatomy and Physiology written by J. Gordon Betts and published by . This book was released on 2013-04-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Joint National Committee on Detection Evaluation and Treatment of High Blood Pressure written by Joint National Committee on Detection, Evaluation, and Treatment of High Blood Pressure and published by . This book was released on with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diagnosis and Management of Hypertrophic Cardiomyopathy written by Barry J. Maron and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diagnosis and Management of Hypertrophic Cardiomyopathy is aunique, multi-authored compendium of information regarding thecomplexities of clinical and genetic diagnosis, natural history,and management of hypertrophic cardiomyopathy (HCM)—the mostcommon and important of the genetic cardiovasculardiseases—as well as related issues impacting the health oftrained athletes. Edited by Dr. Barry J. Maron, a world authority on HCM, and withmajor contributions from all of the international experts in thisfield, this book provides a single comprehensive source ofinformation concerning HCM. Recent advances in the field arediscussed, including the importance of left ventricular outflowtract obstruction, the use of implantable defibrillators for theprevention of sudden death in young people, definition of thegenetic basis for HCM and its role in clinical diagnosis and riskstratification, the development of more precise strategies forassessing the level of risk for sudden death among all patientswith HCM, and the evolution of invasive interventions for heartfailure symptoms, such as surgical management and its alternatives(alcohol septal ablation and dual-chamber pacing). Key Features: Contributions from all experts in the field,representing diverse viewpoints regarding this heterogeneousdisease and related issues in athletes Information to dispel misunderstandings regarding issuesassociated with HCM and cardiovascular disease in athletes The only comprehensive source of information available on thetopic
Download or read book Fluid Resuscitation written by Institute of Medicine and published by National Academies Press. This book was released on 1999-11-05 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, 20% of all injured combatants die on the battlefield before they can be evacuated to a field hospital. Blood lossâ€"hemorrhageâ€"is the single major cause of death among those killed in action whose lives might otherwise be saved. Fluid resuscitation and the treatment of hypovolemia (the abnormally decreased volume of circulating fluid in the body) offer the greatest opportunity for reducing mortality and morbidity associated with battlefield casualties. In Fluid Resuscitation, a committee of experts assess current resuscitation fluids and protocols for the treatment of combat casualties and make recommendations for future research. Chapters focus on the pathophysiology of acute hemorrhagic shock, experience with and complications of fluid resuscitation, novel approaches to the treatment of shock, protocols of care at the site of injury, and future directions for research. The committee explicitly describes the similarities and differences between acute medical care during combat and civilian emergency trauma care. Fluid Resuscitation should help energize and focus research in both civilian and military emergency care and help save the lives of citizens and soldiers alike.
Download or read book Your Guide to Lowering Your Blood Pressure with Dash written by U. S. Department Human Services and published by Createspace Independent Publishing Platform. This book was released on 2012-07-09 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book by the National Institutes of Health (Publication 06-4082) and the National Heart, Lung, and Blood Institute provides information and effective ways to work with your diet because what you choose to eat affects your chances of developing high blood pressure, or hypertension (the medical term). Recent studies show that blood pressure can be lowered by following the Dietary Approaches to Stop Hypertension (DASH) eating plan-and by eating less salt, also called sodium. While each step alone lowers blood pressure, the combination of the eating plan and a reduced sodium intake gives the biggest benefit and may help prevent the development of high blood pressure. This book, based on the DASH research findings, tells how to follow the DASH eating plan and reduce the amount of sodium you consume. It offers tips on how to start and stay on the eating plan, as well as a week of menus and some recipes. The menus and recipes are given for two levels of daily sodium consumption-2,300 and 1,500 milligrams per day. Twenty-three hundred milligrams is the highest level considered acceptable by the National High Blood Pressure Education Program. It is also the highest amount recommended for healthy Americans by the 2005 "U.S. Dietary Guidelines for Americans." The 1,500 milligram level can lower blood pressure further and more recently is the amount recommended by the Institute of Medicine as an adequate intake level and one that most people should try to achieve. The lower your salt intake is, the lower your blood pressure. Studies have found that the DASH menus containing 2,300 milligrams of sodium can lower blood pressure and that an even lower level of sodium, 1,500 milligrams, can further reduce blood pressure. All the menus are lower in sodium than what adults in the United States currently eat-about 4,200 milligrams per day in men and 3,300 milligrams per day in women. Those with high blood pressure and prehypertension may benefit especially from following the DASH eating plan and reducing their sodium intake.
Download or read book Triumph of the Heart written by Megan Feldman Bettencourt and published by Penguin. This book was released on 2016-08-09 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2016 Books For A Better Life Award winner Drawing on the latest research and remarkable tales of forgiveness from around the world, journalist Megan Feldman explores how forgiveness, when practiced in the right ways, can save lives, make us happier and healthier, and lead to a better world. Veteran journalist Megan Feldman was still smarting over a bitter breakup when she began working on a feature article about a father named Azim who had truly forgiven the man who killed his son. She had found herself totally and completely unable to forgive her ex-boyfriend, and yet Azim had managed to forgive his own son’s murderer. Forgiveness has long been touted by religious leaders as a moral imperative. But Megan wanted to know exactly what it means from a scientific perspective, and why forgiving those who have wronged you is one of the best things you can do for yourself. In Triumph of the Heart, Feldman embarks on a quest to understand this complex idea, drawing on the latest research showing that forgiveness can provide a range of health benefits, from relieving depression to decreasing high blood pressure. The journey takes her from New Zealand and the Maori who practice their own form of restorative justice, to a principal in Baltimore who uses forgiveness techniques to eradicate violence in her school, and to recovered addicts who restarted their lives by seeking and receiving forgiveness. She travels to Rwanda to learn about forgiveness in the face of unthinkable atrocities. This book is a guide for how the practice of forgiveness can help us all in our search for a satisfying, fulfilling, good life.
Download or read book Calcific Aortic Valve Disease written by Elena Aikawa and published by BoD – Books on Demand. This book was released on 2013-06-12 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to population aging, calcific aortic valve disease (CAVD) has become the most common heart valve disease in Western countries. No therapies exist to slow this disease progression, and surgical valve replacement is the only effective treatment. Calcific Aortic Valve Disease covers the contemporary understanding of basic valve biology and the mechanisms of CAVD, provides novel insights into the genetics, proteomics, and metabolomics of CAVD, depicts new strategies in heart valve tissue engineering and regenerative medicine, and explores current treatment approaches. As we are on the verge of understanding the mechanisms of CAVD, we hope that this book will enable readers to comprehend our current knowledge and focus on the possibility of preventing disease progression in the future.
Download or read book On War written by Carl von Clausewitz and published by . This book was released on 1908 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ABC of Hypertension written by D. Gareth Beevers and published by John Wiley & Sons. This book was released on 2010-07-15 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypertension is a condition which affects millions of peopleworldwide and its treatment greatly reduces the risk of strokes andheart attacks. This fully revised and updated edition of the ABCof Hypertension is an established guide providing all thenon-specialist needs to know about the measurement of bloodpressure and the investigation and management of hypertensivepatients. This new edition provides comprehensively updated andrevised information on how and whom to treat. The ABC of Hypertension will prove invaluable to generalpractitioners who may be screening large numbers of patients forhypertension, as well as nurse practitioners, midwives and otherhealthcare professionals.
Download or read book Prevent and Reverse Heart Disease written by Caldwell B. Esselstyn Jr. M.D. and published by Penguin. This book was released on 2008-01-31 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: The New York Times bestselling guide to the lifesaving diet that can both prevent and help reverse the effects of heart disease Based on the groundbreaking results of his twenty-year nutritional study, Prevent and Reverse Heart Disease by Dr. Caldwell Esselstyn illustrates that a plant-based, oil-free diet can not only prevent the progression of heart disease but can also reverse its effects. Dr. Esselstyn is an internationally known surgeon, researcher and former clinician at the Cleveland Clinic and a featured expert in the acclaimed documentary Forks Over Knives. Prevent and Reverse Heart Disease has helped thousands across the country, and is the book behind Bill Clinton’s life-changing vegan diet. The proof lies in the incredible outcomes for patients who have followed Dr. Esselstyn's program, including a number of patients in his original study who had been told by their cardiologists that they had less than a year to live. Within months of starting the program, all Dr. Esselstyn’s patients began to improve dramatically, and twenty years later, they remain free of symptoms. Complete with more than 150 delicious recipes perfect for a plant-based diet, the national bestseller Prevent and Reverse Heart Disease explains the science behind the simple plan that has drastically changed the lives of heart disease patients forever. It will empower readers and give them the tools to take control of their heart health.
Download or read book Cardiovascular Regulation written by David Jordan and published by Ashgate Publishing. This book was released on 1995 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Studies in Physiology series provides a concise introduction to developments in complex areas of physiology for a wide audience. Published on behalf of the Physiology Society, Cardiovascular Regulation provides an up-to-date account of our current understanding of the control of the cardiovascular system that is not covered by existing textbooks. Both students and lecturers of cardiovascular and exercise physiology, medicine, dentistry and biomedical sciences will find this book informative and easy to read. Each chapter has numerous summary boxes. 'Essential reading' suggestions provide additional reading for undergraduates and the suggestions for 'Further reading' cover the subject to postgraduate level.
