Download or read book MECHANISMS OF LEFT VENTRICULAR REMODELING IN PHYSIOLOGICAL AND PATHOLOGICAL CONDITIONS written by Gabriel Grilo and published by . This book was released on 2020 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiac remodeling is composed of molecular, cellular, and interstitial changes in the cardiac tissue that affect the size, shape, and function of the heart. There are two types of cardiac remodeling: physiological and pathological remodeling. Physiological remodeling of the heart is an adaptation of the organ based on the body's demand, such as changes due to physical exercises and during aging. Cardiac pathological remodeling can occur due to the evolution of a chronic disorder in the cardiovascular system or after an acute injury, such as myocardial infarction (MI). In this thesis, we investigated both physiological and pathological cardiac remodeling, with particular focus on the role of the extracellular matrix (ECM). Determining the mechanisms involved in cardiac remodeling by changes in ECM provides insight to distinguish the local and functional changes from external risk factors; and it provides identification of novel targets that could be used as therapeutic approaches to reduce cardiac dysfunction. In our first study, we hypothesized that changes in ECM composition during physiological remodeling with age occurs in a sex-specific manner, since cardiac function varies between sexes among cardiovascular disease patients. We assessed cardiac parameters using both conventional echocardiography and speckle tracking echocardiography (STE). Our results suggest that STE allows for early detection of changes in cardiac function between sexes during aging. ECM factors involved in collagen metabolism, such as decorin, osteopontin, Cthrc1, and Ddr1 expression were age-dependent but sex-independent; while periostin, lysyl oxidase, and Mrc2 displayed age-dependent and sex specific differences. These data highlight the importance of including sex-differences analysis when studying cardiac aging. In our second study, we investigated the role of a collagen-derived matricryptin in pathological remodeling. Matricryptins are biologically active peptides, generated from ECM proteolysis, able to regulate cell function and survival. We tested the potential of the matricryptin p1159 to reduce adverse cardiac remodeling using a rodent MI model. A previous study from our lab showed that p1159 plasma levels negatively correlate with left ventricle (LV) filling pressure, suggesting a beneficial role against adverse remodeling. In this thesis, we found that p1159 increases cardiac fibroblast migration by activating RhoA pathways via the membrane receptor integrin alpha 4. Fibroblast migration is an essential step during cardiac healing. In addition, p1159 significantly improved cardiac function post-MI by inducing the formation of a compliant and organized infarct scar, which promoted LV contractility and preserved the structural integrity of the heart. Our data strongly supports matricryptin p1159 as a therapeutic treatment to reduce adverse remodeling post-MI.

Download or read book Cardiac Remodeling written by Bodh I. Jugdutt and published by Springer Science & Business Media. This book was released on 2013-02-15 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of Cardiac Remodeling: Molecular Mechanisms is to summarize the major research advances in molecular, biochemical and translational aspects of cardiac remodeling over the last 2 to 3 decades under one cover and touch on future directions. It provides a high profile and valuable publication resource on molecular mechanisms of cardiac remodeling for both the present and future generations of researchers, teachers, students and trainees. This book should stimulate future translational research targeted towards discovery and development for preventing, limiting and reversing bad remodeling over the next few decades, with the ultimate goal of preventing progression to systolic and/or diastolic heart failure. The chapters suggest potential novel strategies that should receive attention for translating basic research knowledge to application in patients at the bedside.

Download or read book Cardiac Remodeling New Insights in Physiological and Pathological Adaptations written by Leonardo Roever and published by Frontiers Media SA. This book was released on 2017-11-15 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effective management of Cardiac remodeling(CR), remains a major challenge. Heart failure remains the leading cause of death in industrialized countries. Yet, despite the enormity of the problem, effective therapeutic interventions remain elusive. In fact, several initially promising agents were found to decrease mortality in patients recovering from myocardial infarction. Cardiac remodeling is defined as molecular and interstitial changes, manifested clinically by changes in size, mass , geometry and function of the heart in response to certain aggression. Initially, ventricular remodeling aims to maintain stable cardiac function in situations of aggression.

Download or read book Cardiac Adaptations written by Bohuslav Ostadal and published by Springer Science & Business Media. This book was released on 2012-10-12 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes present knowledge of different mechanisms involved in the development of positive and negative consequences of cardiac adaptation. Particular attention is paid to the still underestimated adaptive cardiac responses during development, to adaptation to the frequently occurring pressure and volume overload as well as to cardiac changes, induced by enduring exercise and chronic hypoxia. Cardiac Adaptations will be of great value to cardiovascular investigators, who will find this book highly useful in their cardiovascular studies for finding solutions in diverse pathological conditions; it will also appeal to students, fellows, scientists, and clinicians interested in cardiovascular abnormalities.

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 Dilated Cardiomyopathy written by Gianfranco Sinagra and published by Springer. This book was released on 2019-05-17 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book presents a comprehensive overview of dilated cardiomyopathy, providing readers with practical guidelines for its clinical management. The first part of the book analyzes in detail the disease’s pathophysiology, its diagnostic work up as well as the prognostic stratification, and illustrates the role of genetics and gene-environment interaction. The second part presents current and future treatment options, highlighting the importance of long-term and individualized treatments and follow-up. Furthermore, it discusses open issues, such as the apparent healing phenomenon, the early prognosis of arrhythmic events or the use of genetic testing in clinical practice. Offering a multidisciplinary approach for optimizing the clinical management of DCM, this book is an invaluable aid not only for the clinical cardiologists, but for all physicians involved in the care of this challenging disease.

Download or read book Cardiac Remodeling written by Barry Greenberg and published by CRC Press. This book was released on 2005-09-29 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring the causes, mechanisms, and pathophysiology of cardiac remodeling, this reference offers detailed descriptions of the various components of the remodeling process, as well as new therapeutic interventions and recent and future prospects for the treatment of cardiac remodeling.

Download or read book Cellular Molecular and Environmental Contribution in Cardiac Remodeling written by Asim K. Duttaroy and published by Elsevier. This book was released on 2024-04-16 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellular, Molecular and Environmental Contribution in Cardiac Remodeling: From Lab Bench to Clinical Perspective consolidates the most recent research advances on cellular, molecular, biochemical, and heterogeneous factors contributing to the physiological and pathological cardiac remodeling, elucidating their mechanisms of action and the clinical outcomes of cardiac remodeling. It extensively covers the factors determining cardiac remodeling, including cardiomyocyte regeneration, cardiac stem cells and their therapeutic potential, cardiac resident pericytes, the role of natural bioactive compounds in cardiac remodeling, chronic cardiac adaptations to exercise and more. This book provides basic science researchers and clinical investigators in cardiology with a current and comprehensive resource on molecular mechanisms and contributing factors to cardiac remodeling, and its effects and impacts on heart health. New research areas for the future, aimed at preventing, limiting, and reversing bad remodeling, are also discussed. Provides a concise summary of recent developments in cardiac remodeling research, combining novel information and the latest data published in this field Discusses not only cellular and molecular factors impacting cardiac remodeling, but also environmental contributions such as lifestyle and exercise Identifies areas for future research and potential novel strategies for translating basic research knowledge to applications in patients

Download or read book Cardiac Remodeling written by Jerald Sherman and published by Nova Science Publishers. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiovascular diseases are the leading cause of death in almost 40% of patients suffering from end stage renal disease (ESRD). Cardiomyopathy and ischemic heart disease are the most frequent causes of cardiac death. The risk of cardiovascular mortality in dialysis patients is 10 to 20 times greater than the general population, particularly in younger patients, taking into account that the relative risk decreases with age. Left ventricular hypertrophy (LVH) is the most common cardiac abnormality in chronic kidney disease (CKD), and the survival risk ratio in such patients is independent. This book examines the molecular mechanisms, treatments and clinical implication of cardiac remodeling. The first chapter discusses risk factors for cardiovascular disease in patients on continuous ambulatory peritoneal dialysis. The following chapters examine the impacts tropomyosin, vitamin D, and coffee have on cardiac remodeling.

Download or read book Cardiac Remodeling and Failure written by Pawan K. Singal and published by Springer Science & Business Media. This book was released on 2003-02-28 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of the developmental approach for experimental and clinical cardiology is indisputable. Clinical-epidemiological studies have clearly shown that the risk factors of serious cardiovascular diseases, such as atherosclerosis and ischemic heart disease, are already present during the early phases of ontogenetic development. Furthermore, congenital cardiovascular malformations remain the single largest cause of infant mortality from congenital defects in industrial countries. It is therefore not surprising that the interest of theoretical and clinical cardiologists in the developmental approach keeps increasing. Advances in molecular biology accelerated this trend substantially. This book is based on contributions presented at the international symposium The Developing Heart in Prague in May 2000. It is our contention that the biological, electrophysiological, morphological, functional, biochemical and functional approaches employed by distinguished scientists worldwide will provide the reader with a global picture for changes characterizing the developing heart. It should stimulate the curiosity of cardiovascular scientists in gaining insight into the mechanisms of normal and pathological development.

Download or read book Cardiac Mechanobiology in Physiology and Disease written by Markus Hecker and published by Springer Nature. This book was released on 2023-04-19 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest findings in the field of cardiac mechanobiology in health and disease. Cardiac mechanobiology provides knowledge of all aspects of mechanobiology of the heart. Cardiomyogenesis is discussed as well as the mechanobiology of cardiac remodeling and regeneration. The molecular mechanisms of mechanoperception and mechanotransduction in cardiomyocytes are explained, as well as stretch induced differentiation of cardiomyocytes derived from induced pluripotent stem cells. This volume of the series Cardiac and Vascular Biology complements the volume Vascular Mechanobiology in Physiology and Disease (volume 8) published in this series. The book is aimed at clinicians as well as researchers in cardiovascular biology, bioengineering and biophysics, and also represents an educational resource for young researchers and students in these fields.

Download or read book Thyroid and Heart written by Giorgio Iervasi and published by Springer Nature. This book was released on 2020-03-19 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, several scientific papers have highlighted the role of the thyroid system in cardioprotection, and several clinical studies – including multicenter studies – have identified the role of thyroid hormones (TH) in the development and progression of cardiovascular disease, making an update of TH and heart relationship both necessary and timely. This second edition of Thyroid and Heart failure provides a careful and updated review of the experimental, clinical and epidemiological results in the field of TH and heart failure, with a particular focus on the translational - bench to bedside - significance of the obtained results. It discusses topics such as the molecular, structural, functional, cellular and histological cardiac changes; the reversibility of these changes with TH replacement therapy; the systemic effects – kidney, hormonal pathways systems, brain, muscle, etc – of altered TH metabolism in HF, as well as the clinical and prognostic implications. The section devoted to the potential therapeutic treatments has been expanded. Thanks to its translational approach to this highly complex subject, the book will be of interest to a broad readership, including cardiologists, endocrinologists and internists.

Download or read book The Breathless Heart written by Michele Emdin and published by Springer. This book was released on 2016-11-25 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically focuses on central sleep apneas, analyzing their relationship especially with heart failure and discussing recent research results and emerging treatment strategies based on feedback modulation. The opening chapters present historical background information on Cheyne-Stokes respiration (CSR), clarify terminology, and explain the mechanics and chemistry of respiration. Following a description of the physiology of respiration, the pathophysiology underlying central apneas in different disorders and particularly in heart failure is discussed. The similarities and differences of obstructive and central apneas are then considered. The book looks beyond the concept of sleep apnea to daytime CSR and periodic breathing during effort and contrasts the opposing views of CSR as a compensatory phenomenon or as detrimental to the failing heart. The diagnostic tools currently in use for the detection of CSR are thoroughly reviewed, with guidance on interpretation of findings. The book concludes by describing the various forms of treatment that are available for CSR and by explaining how to select patients for treatment.

Download or read book Mechanobiology written by Simon C. F. Rawlinson and published by John Wiley & Sons. This book was released on 2017-01-31 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: An emerging field at the interface of biology and engineering, mechanobiology explores the mechanisms by which cells sense and respond to mechanical signals—and holds great promise in one day unravelling the mysteries of cellular and extracellular matrix mechanics to cure a broad range of diseases. Mechanobiology: Exploitation for Medical Benefit presents a comprehensive overview of principles of mechanobiology, highlighting the extent to which biological tissues are exposed to the mechanical environment, demonstrating the importance of the mechanical environment in living systems, and critically reviewing the latest experimental procedures in this emerging field. Featuring contributions from several top experts in the field, chapters begin with an introduction to fundamental mechanobiological principles; and then proceed to explore the relationship of this extensive force in nature to tissues of musculoskeletal systems, heart and lung vasculature, the kidney glomerulus, and cutaneous tissues. Examples of some current experimental models are presented conveying relevant aspects of mechanobiology, highlighting emerging trends and promising avenues of research in the development of innovative therapies. Timely and important, Mechanobiology: Exploitation for Medical Benefit offers illuminating insights into an emerging field that has the potential to revolutionise our comprehension of appropriate cell biology and the future of biomedical research.

Download or read book Heart Failure A Companion to Braunwald s Heart Disease E Book written by G. Michael Felker and published by Elsevier Health Sciences. This book was released on 2019-02-06 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-date, authoritative and comprehensive, Heart Failure, 4th Edition, provides the clinically relevant information you need to effectively manage and treat patients with this complex cardiovascular problem. This fully revised companion to Braunwald’s Heart Disease helps you make the most of new drug therapies such as angiotensin receptor neprilysin inhibitors (ARNIs), recently improved implantable devices, and innovative patient management strategies. Led by internationally recognized heart failure experts Dr. G. Michael Felker and Dr. Douglas Mann, this outstanding reference gives health care providers the knowledge to improve clinical outcomes in heart failure patients. Focuses on a clinical approach to treating heart failure, resulting from a broad variety of cardiovascular problems. Covers the most recent guidelines and protocols, including significant new updates to ACC, AHA, and HFSA guidelines. Covers key topics such as biomarkers and precision medicine in heart failure and new data on angiotensin receptor neprilysin inhibitors (ARNIs). Contains four new chapters: Natriuretic Peptides in Heart Failure; Amyloidosis as a Cause of Heart Failure; HIV and Heart Failure; and Neuromodulation in Heart Failure. Covers the pathophysiological basis for the development and progression of heart failure. Serves as a definitive resource to prepare for the ABIM’s Heart Failure board exam. 2016 British Medical Association Award: First Prize, Cardiology (3rd Edition).

Download or read book Biomedical Science Engineering and Technology written by Dhanjoo N. Ghista and published by IntechOpen. This book was released on 2012-01-20 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt: This innovative book integrates the disciplines of biomedical science, biomedical engineering, biotechnology, physiological engineering, and hospital management technology. Herein, Biomedical science covers topics on disease pathways, models and treatment mechanisms, and the roles of red palm oil and phytomedicinal plants in reducing HIV and diabetes complications by enhancing antioxidant activity. Biomedical engineering coves topics of biomaterials (biodegradable polymers and magnetic nanomaterials), coronary stents, contact lenses, modelling of flows through tubes of varying cross-section, heart rate variability analysis of diabetic neuropathy, and EEG analysis in brain function assessment. Biotechnology covers the topics of hydrophobic interaction chromatography, protein scaffolds engineering, liposomes for construction of vaccines, induced pluripotent stem cells to fix genetic diseases by regenerative approaches, polymeric drug conjugates for improving the efficacy of anticancer drugs, and genetic modification of animals for agricultural use. Physiological engineering deals with mathematical modelling of physiological (cardiac, lung ventilation, glucose regulation) systems and formulation of indices for medical assessment (such as cardiac contractility, lung disease status, and diabetes risk). Finally, Hospital management science and technology involves the application of both biomedical engineering and industrial engineering for cost-effective operation of a hospital.

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.