Download or read book Remodeling Deformation and Tissue Structure in Healing Myocardial Infarcts written by Jeffrey W. Holmes and published by . This book was released on 1995 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanisms of Post myocardial Infarction Healing written by Darlene L. Hunt and published by . This book was released on 2009 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acute survival and chronic healing after myocardial infarction (MI) depend on a myriad of processes that begin within hours of the injury and can continue in the form of remodeling even years thereafter. The myocardium has very little self-renewal capability, and tissue lost to MI is replaced with a collagenous scar. There are currently no clinical therapies that directly target myocardial healing, due in part to the pleiotropic effects and redundancy of signaling factors released after injury. In addition, some processes such as the inflammatory response are required for acute healing to proceed, but can also precipitate chronic deleterious remodeling and heart failure. A better understanding of the contributors to myocardial healing in both the acute and chronic phases is crucial in the search for clinical therapies that will improve the heart's response to MI injury. In this work, we investigated the mechanisms of post-MI healing by studying two murine models of altered myocardial wound repair. We first studied infarct scar formation in mice lacking a proteoglycan with a role in collagen fibril assembly, and found that this deficiency altered infarct scar structure and mechanical properties compared to controls. Next, we investigated acute and chronic healing in a strain capable of myocardial regeneration after cryoprobe injury. Our results showed that this strain survives the acute phase and heals in the chronic phase post-MI better than a control strain, and that these differences could be attributed to reduced acute apoptosis and inflammation. The results presented here provide new insight into the mechanisms of post-MI survival and healing, and will be useful for future studies designed to improve mammalian cardiac repair.
Download or read book The Role of Collagen in Cardiac Mechanics and Adverse Left Ventricle Remodeling Post myocardial Infarction written by Andrew Voorhees and published by . This book was released on 2014 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Myocardial infarction (MI) occurs when the coronary arteries that supply blood to the myocardial tissue of the heart become blocked, triggering a dynamic wound healing response and eventually leading to the formation of a collagen rich scar tissue. The properties of the collagen network that forms dictate the mechanical behavior of the infarct tissue, which in turn alters the pumping function of the left ventricle (LV). However, little is known about how variations in the collagen network alter the function of the LV and contribute to differences in patient outcome. The goal of this dissertation is to clarify the mechanisms by which variation in the structural properties of the collagen network affect the mechanical properties of the infarct tissue and the pumping function of the LV through both computational and experimental approaches. The computational approach identified that a longitudinal alignment of collagen fibers in the infarct region is able to both maximize distension of the LV during diastolic filling and the contractile force generated by the healthy regions of the LV through the Frank-Starling mechanism. The experimental approach revealed a novel mechanism to reduce LV dilation by facilitating the assembly and cross-linking of collagen fibers through deletion of the gene for matrix metalloproteinase-9. This was the first study to quantify infarct mechanical properties in mice. This work opens up new areas for potential research and the findings may lead to the development of new diagnostic and therapeutic technologies.
Download or read book Magnetic Resonance Elastography written by Sudhakar K. Venkatesh and published by Springer. This book was released on 2014-10-01 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book to cover the groundbreaking development and clinical applications of Magnetic Resonance Elastography, this book is essential for all practitioners interested in this revolutionary diagnostic modality. The book is divided into three sections. The first covers the history of MRE. The second covers technique and clinical applications of MRE in the liver with respect to fibrosis, liver masses, and other diseases. Case descriptions are presented to give the reader a hands-on approach. The final section presents the techniques, sequence and preliminary results of applications in other areas of the body including muscle, brain, lung, heart, and breast.
Download or read book Structure Based Mechanics of Tissues and Organs written by Ghassan S. Kassab and published by Springer. This book was released on 2016-01-28 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book portrays the commonality of tissue micro-structure that dictates physiological function in various organs (microstructure-function relation). Tissue and organ models are used to illustrate physiological functions based on microstructure. Fiber scale properties such as orientation and crimp are described in detail. Structurally-based constitutive models are given throughout the book, not only to avoid ambiguities in material characterization, but also to offer insights into the function, structure, and mechanics of tissue components. A statement of future directions of the field is also given, including how advancements, such as state-of-the-art computational modeling and optical measurements of tissue/cells structures, are taking structure-based modeling to the next level. This book also: Provides a comprehensive view of tissue modeling across multiple systems Broadens readers’ understanding of state-of-the-art computational modeling and optical measurements of tissue/cells structures Describes in detail fiber scale properties such as orientation and crimp
Download or read book Cardiac Regeneration and Repair written by Ren-Ke Li and published by Elsevier. This book was released on 2014-02-16 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiac Regeneration and Repair, Volume One reviews the pathology of cardiac injury and the latest advances in cell therapy. Chapters in part one explore the pathogenesis of congestive heart failure, the mechanisms responsible for adverse cardiac matrix remodeling, and potential interventions to restore ventricular function. Part two highlights new approaches to cell therapy for cardiac regeneration, and includes chapters covering alternative routes of cell delivery, monitoring cell engraftment, and the feasibility of using allogeneic stem cells to restore cardiac function. Chapters in part three move on to highlight novel stem cells for cardiac repair, including human embryonic stem cells and human pluripotent stem cells, and detail their current status and future potential for cardiac therapy. Finally, part four explores gene therapy, and includes ultrasound-targeted or direct gene delivery as well as cell-based gene therapy for cardiac regeneration. Cardiac Regeneration and Repair, Volume One is complemented by a second volume covering biomaterials and tissue engineering. Together, the two volumes of Cardiac Regeneration and Repair provide a comprehensive resource for clinicians, scientists, or academicians fascinated with cardiac regeneration, including those interested in cell therapy, tissue engineering, or biomaterials. Explores the pathogenesis of congestive heart failure, the mechanisms responsible for adverse cardiac matrix remodeling, and potential interventions to restore ventricular function Highlights new approaches to cell therapy for cardiac regeneration and includes chapters covering alternative routes of cell delivery, monitoring cell engraftment, and the feasibility of using allogeneic stem cells to restore cardiac function Explores gene therapy and includes ultrasound-targeted or direct gene delivery as well as cell-based gene therapy for cardiac regeneration
Download or read book The Failing Heart written by Naranjan S. Dhalla and published by Lippincott Williams & Wilkins. This book was released on 1995 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomechanics Trends in Modeling and Simulation written by Gerhard A. Holzapfel and published by Springer. This book was released on 2016-09-14 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a state-of-the-art overview of biomechanical and mechanobiological modeling and simulation of soft biological tissues. Seven well-known scientists working in that particular field discuss topics such as biomolecules, networks and cells as well as failure, multi-scale, agent-based, bio-chemo-mechanical and finite element models appropriate for computational analysis. Applications include arteries, the heart, vascular stents and valve implants as well as adipose, brain, collagenous and engineered tissues. The mechanics of the whole cell and sub-cellular components as well as the extracellular matrix structure and mechanotransduction are described. In particular, the formation and remodeling of stress fibers, cytoskeletal contractility, cell adhesion and the mechanical regulation of fibroblast migration in healing myocardial infarcts are discussed. The essential ingredients of continuum mechanics are provided. Constitutive models of fiber-reinforced materials with an emphasis on arterial walls and the myocardium are discussed and the important influence of residual stresses on material response emphasized. The mechanics and function of the heart, the brain and adipose tissues are discussed as well. Particular attention is focused on microstructural and multi-scale modeling, finite element implementation and simulation of cells and tissues.
Download or read book Functional Imaging and Modeling of the Heart written by Dimitris N. Metaxas and published by Springer Science & Business Media. This book was released on 2011-05-10 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 6th International Conference on Functional Imaging and Modeling of the Heart, held in New York City, NY, USA in May 2011. The 24 revised full papers presented together with 29 revised poster papers were carefully reviewed and selected from about 120 initial submissions. The contributions feature current research and development efforts in the fields of cardiovascular modeling, physiology, and image-based analysis, at a range of scales and imaging methods. Topics addresses are such as imaging, signal and image processing, applied mathematics, biomedical engineering and computer science; biologically oriented fields such as cardiac physiology and biology; as well as clinical issues such as cardiology, radiology and surgery, with a common interest in the heart.
Download or read book Cardiovascular Magnetic Resonance Imaging written by Raymond Y. Kwong and published by Springer. This book was released on 2019-01-31 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: The significantly updated second edition of this important work provides an up-to-date and comprehensive overview of cardiovascular magnetic resonance imaging (CMR), a rapidly evolving tool for diagnosis and intervention of cardiovascular disease. New and updated chapters focus on recent applications of CMR such as electrophysiological ablative treatment of arrhythmias, targeted molecular MRI, and T1 mapping methods. The book presents a state-of-the-art compilation of expert contributions to the field, each examining normal and pathologic anatomy of the cardiovascular system as assessed by magnetic resonance imaging. Functional techniques such as myocardial perfusion imaging and assessment of flow velocity are emphasized, along with the exciting areas of artherosclerosis plaque imaging and targeted MRI. This cutting-edge volume represents a multi-disciplinary approach to the field, with contributions from experts in cardiology, radiology, physics, engineering, physiology and biochemistry, and offers new directions in noninvasive imaging. The Second Edition of Cardiovascular Magnetic Resonance Imaging is an essential resource for cardiologists and radiologists striving to lead the way into the future of this important field.
Download or read book Myocardial Preservation written by Dennis V. Cokkinos and published by Springer. This book was released on 2019-01-28 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely book reveals an integrated approach to myocardial preservation focusing on translational research and clinical applications. Chapters cover both the mechanisms of heart failure in addition to therapeutic considerations, including forms of cardiac cell death, cardiac remodelling and cardiac regeneration. Potential future research directions are also proposed, enabling the reader to gain a broad in-depth understanding of the topic. Myocardial Preservation: Translational Research and Clinical Application presents a thorough review of myocardial preservation. Its comprehensive approach provides a valuable reference for cardiology researchers and practising and trainee cardiologists seeking new insight to the topic.
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 The Role of Matrix Metalloproteinase in Human Body Pathologies written by Francesco Travascio and published by BoD – Books on Demand. This book was released on 2017-12-20 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Matrix metalloproteinases (MMPs) are a family of proteolytic zinc-containing enzymes involved in physiological as well as in pathological processes in the human organism. MMPs play a key role in the remodeling of the extracellular matrix. Such a process may occur because of tissue homeostasis, morphogenesis, and tissue repair. However, remodeling could also be a part of many pathological states such as arthritis, cardiovascular diseases, neurodegenerative diseases, or impaired development in congenital anomalies. This book overviews the role of MMPs in different pathologies affecting the human body.
Download or read book Clinical Cardiac MRI written by Jan Bogaert and published by Springer Science & Business Media. This book was released on 2012-02-27 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully updated edition of the most comprehensive and best-illustrated volume on cardiac MRI emphasizes its use in everyday clinical practice and includes in its online edition dozens more real-life cases that significantly enhance the utility of the book.
Download or read book Vascular Protection written by Gabor M. Rubanyi and published by CRC Press. This book was released on 2002-02-21 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vascular Protection explores advances in vascular biology and how they translate into innovations in drug therapy for vascular disease. It addresses recent advances in the knowledge of endothelial vasoactive factors and other biologically active molecules as well as gene therapy. Written by leading experts in their respective fields, each chapter e
Download or read book Biology and Mechanics of Blood Flows written by Marc Thiriet and published by Springer Science & Business Media. This book was released on 2007-12-20 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative work presents the basic knowledge and state-of-the-art techniques necessary to carry out investigations of the cardiovascular system using modeling and simulation. The book provides a survey of relevant cell components and processes, with detailed coverage of the electrical and mechanical behaviors of vascular cells, tissues, and organs. Biological and mechanical glossaries are provided.
Download or read book Mechanobiology in Health and Disease written by Stefaan Verbruggen and published by Academic Press. This book was released on 2018-08-09 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanobiology in Health and Disease brings together contributions from leading biologists, clinicians, physicists and engineers in one convenient volume, providing a unified source of information for researchers in this highly multidisciplinary area. Opening chapters provide essential background information on cell mechanotransduction and essential mechanobiology methods and techniques. Other sections focus on the study of mechanobiology in healthy systems, including bone, tendons, muscles, blood vessels, the heart and the skin, as well as mechanobiology studies of pregnancy. Final chapters address the nascent area of mechanobiology in disease, from the study of bone conditions, skin diseases and heart diseases to cancer. A discussion of future perspectives for research completes each chapter in the volume. This is a timely resource for both early-career and established researchers working on mechanobiology. Provides an essential digest of primary research from many fields and disciplines in one convenient volume Covers both experimental approaches and descriptions of mechanobiology problems from mathematical and numerical perspectives Addresses the hot topic of mechanobiology in disease, a particularly dynamic field of frontier science
