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Ca2 Signaling And Heart Rhythm
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Book Synopsis Ca2+ Signaling and Heart Rhythm by : Ming Lei
Download or read book Ca2+ Signaling and Heart Rhythm written by Ming Lei and published by Frontiers Media SA. This book was released on 2016-07-25 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ca2+ is a key second messenger in the intricate workings of the heart. In cardiac myocytes, Ca2+ signaling controls or modulates electrophysiological function, excitation-contraction coupling, contractile function, energy balance, cell death, and gene transcription. Thus, diverse Ca2+-dependent regulatory processes occur simultaneously within a cell. Yet, distinct signals can be resolved by local Ca2+ sensitive protein complexes and differential Ca2+ signal integration. In addition to its importance to normal cardiac function, such regulation is also crucial in disease conditions. Ca2+ is likely involved in ectopic cardiac rhythms in both atrial and ventricular tissues through generating triggered activity often appearing as delayed afterdepolarisations, particularly following cellular Ca overloading. Recent studies also implicate Ca2+ in Na+ channel expression and properties with consequences for conduction velocity and therefore arrhythmic substrate. At the cellular level, such regulation involves control of the activity of membrane ion channels and Ca2+ handling proteins. These in turn involve multiple extra- and intracellular signaling pathways. This e-book assembles review and original articles from experts in this field. It summarises major recent progress bearing on roles of Ca2+ in cardiac electrophysiological function encompassing both normal and abnormal cardiac function. These extend from physiological roles of Ca2+ signaling in pacemaker function, in particular generation of sino-atrial pacemaker potentials, to pathological roles of abnormal Ca2+ signaling in both atrial and ventricular arrhythmogenesis. It also seeks to bridge the gap between advances in basic science and development of new therapies.
Book Synopsis Ca2+ Signaling and Heart Rhythm by :
Download or read book Ca2+ Signaling and Heart Rhythm written by and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ca2+ is a key second messenger in the intricate workings of the heart. In cardiac myocytes, Ca2+ signaling controls or modulates electrophysiological function, excitation-contraction coupling, contractile function, energy balance, cell death, and gene transcription. Thus, diverse Ca2+-dependent regulatory processes occur simultaneously within a cell. Yet, distinct signals can be resolved by local Ca2+ sensitive protein complexes and differential Ca2+ signal integration. In addition to its importance to normal cardiac function, such regulation is also crucial in disease conditions. Ca2+ is likely involved in ectopic cardiac rhythms in both atrial and ventricular tissues through generating triggered activity often appearing as delayed afterdepolarisations, particularly following cellular Ca overloading. Recent studies also implicate Ca2+ in Na+ channel expression and properties with consequences for conduction velocity and therefore arrhythmic substrate. At the cellular level, such regulation involves control of the activity of membrane ion channels and Ca2+ handling proteins. These in turn involve multiple extra- and intracellular signaling pathways. This e-book assembles review and original articles from experts in this field. It summarises major recent progress bearing on roles of Ca2+ in cardiac electrophysiological function encompassing both normal and abnormal cardiac function. These extend from physiological roles of Ca2+ signaling in pacemaker function, in particular generation of sino-atrial pacemaker potentials, to pathological roles of abnormal Ca2+ signaling in both atrial and ventricular arrhythmogenesis. It also seeks to bridge the gap between advances in basic science and development of new therapies.
Book Synopsis Dysregulated Calcium Signaling in Cardiomyocytes from Diabetic Atrial Fibrillation to Chemotherapy-induced Cardiac Hypertrophy by : Xian Liu (Ph.D.)
Download or read book Dysregulated Calcium Signaling in Cardiomyocytes from Diabetic Atrial Fibrillation to Chemotherapy-induced Cardiac Hypertrophy written by Xian Liu (Ph.D.) and published by . This book was released on 2022 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ca2+ is a vital second messenger in cardiomyocytes and controls excitation contraction coupling. It also regulates cell cycle, apoptosis, hypertrophy and downstream gene transcription in the heart remodeling. Calcium homeostasis is a complicated network and the intracellular Ca2+ signaling is composed of different Ca2+ movements like Ca2+ spikes [1], waves and oscillations [2-4]. The spatially-temporally regulated Ca2+ signaling is orchestrated with the Ca2+ release through ryanodine receptor (RyR) or IP3 receptor (IP3R) from Ca2+ stores such assarcoplasmic/endoplasmic reticulum (SR/ER), recycling of Ca2+ from cell plasma back to the ER and Ca2+ influx through plasma membrane (PM) from extracellular space. There are many channels and transporters responsible for the intracellular Ca2+ homeostasis in cardiomyocytes. Firstly, the RyR mediates Ca2+ release from SR/ER [5]. Secondly, the ER/SR Ca2+-ATPase (SERCA) pumps Ca2+ from the cytosol back into the ER/SR. Plasma membrane Ca2+-ATPase (PMCA) drives Ca2+ from the cytosol to the extracellular space [6]. Thirdly, the Ca2+ channels or transporters located on the cell membrane allow Ca2+ influx across the plasma membrane (PM) from the extracellular space. These channels or transporters include voltage-gated Ca2+ channel (VGCC), transient receptor potential channel (TRP), store-operated calcium entry (SOCE) or Ca2+ release activated Ca2+ channel (CRAC), Na+/Ca2+ exchanger (NCX) and purinergic receptor. Fourthly, mitochondrial Ca2+ uniporter (MCU) regulates mitochondrial Ca2+ uptake. Besides, there are more channels or transporters on the cell membrane and the ER membrane involved in the regulation of intracellular Ca2+ homeostasis. The dysregulation of intracellular Ca2+ can lead to a wide spectrum of cardiovascular diseases, including but not limited to arrhythmias, cardiac hypertrophy, cardiomyopathy and heart failure (summarized in the following illustrative figure). The first chapter of this dissertation is devoted to a literature review on the intracellular Ca2+ in the cardiac system with particular emphasis on SOCE and its machinery components. In Chapter 2, the IP3-mediated disrupted calcium homeostasis in type 2 diabetes (T2DM)and atrial fibrillation (AF) is examined. In Chapter 3, the role of SOCE in chemotherapy drug epirubicin induced cardiotoxicity is investigated. Finally, in Chapter 4, conclusion will be stated and future directions will be discussed.
Book Synopsis Heart Rate and Rhythm by : Onkar N. Tripathi
Download or read book Heart Rate and Rhythm written by Onkar N. Tripathi and published by Springer Nature. This book was released on 2023-12-08 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely updated and expanded 2nd Edition provides all the information needed in order to understand the complex molecular, cellular and genetic mechanisms that underlie normal and abnormal cardiac rhythms. Its goal is to help physiologists and clinicians alike develop better preventive and treatment strategies. The respective chapters cover a broad range of topics, including the role of specific ion channels and transporters, gap junctions, intracellular Ca2+ handling in pacemaker activity, impulse conduction, and the activity of atrial and ventricular myocardium. Special emphasis is placed on the unique electrophysiology of specialized pacemaking cells and conducting fibers. In turn, several types of inherited and acquired ventricular arrhythmias are presented in detail. Clinicians will especially appreciate the updated information on even common disorders like atrial fibrillation and their impacts on human physiology. In closing, the book goes “one step further” and considers future prospects, e.g. novel antiarrhythmic agents and new concepts like optogenetics, in the context of heart rate regulation. Accordingly, it offers readers a solid reference guide to everything they need to know about human heart rate and rhythm.
Download or read book The Endothelium written by Michel Félétou and published by Morgan & Claypool Publishers. This book was released on 2011 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells. The endothelium is a major player in the control of blood fluidity, platelet aggregation and vascular tone, a major actor in the regulation of immunology, inflammation and angiogenesis, and an important metabolizing and an endocrine organ. Endothelial cells controls vascular tone, and thereby blood flow, by synthesizing and releasing relaxing and contracting factors such as nitric oxide, metabolites of arachidonic acid via the cyclooxygenases, lipoxygenases and cytochrome P450 pathways, various peptides (endothelin, urotensin, CNP, adrenomedullin, etc.), adenosine, purines, reactive oxygen species and so on. Additionally, endothelial ectoenzymes are required steps in the generation of vasoactive hormones such as angiotensin II. An endothelial dysfunction linked to an imbalance in the synthesis and/or the release of these various endothelial factors may explain the initiation of cardiovascular pathologies (from hypertension to atherosclerosis) or their development and perpetuation. Table of Contents: Introduction / Multiple Functions of the Endothelial Cells / Calcium Signaling in Vascular Cells and Cell-to-Cell Communications / Endothelium-Dependent Regulation of Vascular Tone / Conclusion / References
Book Synopsis Calcium Signaling by : Md. Shahidul Islam
Download or read book Calcium Signaling written by Md. Shahidul Islam and published by Springer Nature. This book was released on 2019-10-23 with total page 1110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains a unique selection of chapters covering a wealth of contemporary topics in this ubiquitous and diverse system of cell signaling. It offers much more than the accessibility and authority of a primary text book, exploring topics ranging from the fundamental aspects of calcium signaling to its varied clinical implications. It presents comprehensive discussion of cutting-edge research alongside detailed analysis of critical issues, at the same time as setting out testable hypotheses that point the way to future scientific endeavors. The contributions feature material on theoretical and methodological topics as well as related subjects including mathematical modeling and simulations. They examine calcium signaling in a host of contexts, from mammalian cells to bacteria, fruit fly and zebrafish. With much of interest to newcomers to the field as well as seasoned experts, this new publication is both wide-ranging and authoritative. The chapter “Calcium Signaling: From Basic to Bedside” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Book Synopsis Stress-Activated Protein Kinases by : Francesc Posas
Download or read book Stress-Activated Protein Kinases written by Francesc Posas and published by Springer Science & Business Media. This book was released on 2008-01-24 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book leading researchers in the field discuss the state-of-the-art of many aspects of SAPK signaling in various systems from yeast to mammals. These include various chapters on regulatory mechanisms as well as the contribution of the SAPK signaling pathways to processes such as gene expression, metabolism, cell cycle regulation, immune responses and tumorigenesis. Written by international experts, the book will appeal to cell biologists and biochemists.
Book Synopsis Ca2 Signaling in Cardiac Muscle by : Keith W. Dilly
Download or read book Ca2 Signaling in Cardiac Muscle written by Keith W. Dilly and published by . This book was released on 2001 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Excitation-Contraction Coupling and Cardiac Contractile Force by : Donald Bers
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.
Book Synopsis Store-Operated Calcium Channels by :
Download or read book Store-Operated Calcium Channels written by and published by Academic Press. This book was released on 2013-07-24 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: Store-operated calcium channels are found in most animal cells and regulate many cellular functions including cell division, growth, differentiation, and cell death. This volume provides a concise and informative overview of the principles of store-operated calcium entry and the key developments in the field from researchers who have led these advances. The overall goal of the volume is to provide interested students and investigators with sufficient information to enable a broad understanding of the progress and current excitement in the field. The volume contains a wealth of information that even experienced investigators in the field will find useful. The volume provides a comprehensive overview of the mechanisms and functions of store-operated calcium channels Contributors are authoritative researchers who have produced important advances in the field The volume is well-illustrated with cartoons and data to facilitate easy comprehension of the subject
Book Synopsis Anesthetic Pharmacology by : Alex S. Evers
Download or read book Anesthetic Pharmacology written by Alex S. Evers and published by Cambridge University Press. This book was released on 2011-03-10 with total page 2902 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years our understanding of molecular mechanisms of drug action and interindividual variability in drug response has grown enormously. Meanwhile, the practice of anesthesiology has expanded to the preoperative environment and numerous locations outside the OR. Anesthetic Pharmacology: Basic Principles and Clinical Practice, 2nd edition, is an outstanding therapeutic resource in anesthesia and critical care: Section 1 introduces the principles of drug action, Section 2 presents the molecular, cellular and integrated physiology of the target organ/functional system and Section 3 reviews the pharmacology and toxicology of anesthetic drugs. The new Section 4, Therapeutics of Clinical Practice, provides integrated and comparative pharmacology and the practical application of drugs in daily clinical practice. Edited by three highly acclaimed academic anesthetic pharmacologists, with contributions from an international team of experts, and illustrated in full colour, this is a sophisticated, user-friendly resource for all practitioners providing care in the perioperative period.
Author :International Study Group for Research in Cardiac Metabolism Publisher :Baltimore : University Park Press ISBN 13 : Total Pages :520 pages Book Rating :4.3/5 (91 download)
Book Synopsis The Sarcolemma by : International Study Group for Research in Cardiac Metabolism
Download or read book The Sarcolemma written by International Study Group for Research in Cardiac Metabolism and published by Baltimore : University Park Press. This book was released on 1976 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ion Channel Regulation written by and published by Academic Press. This book was released on 1999-04-13 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 33 reviews the current understanding of ion channel regulation by signal transduction pathways. Ion channels are no longer viewed simply as the voltage-gated resistors of biophysicists or the ligand-gated receptors of biochemists. They have been transformed during the past 20 years into signaling proteins that regulate every aspect of cell physiology. In addition to the voltage-gated channels, which provide the ionic currents to generate and spread neuronal activity, and the calcium ions to trigger synaptic transmission, hormonal secretion, and muscle contraction, new gene families of ion channel proteins regulate cell migration, cell cycle progression, apoptosis, and gene transcription, as well as electrical excitability. Even the genome of the lowly roundworm Caenorhabditis elegans encodes almost 100 distinct genes for potassium-selective channels alone. Most of these new channel proteins are insensitive to membrane potential, yet in humans, mutations in these genes disrupt development and increase individual susceptibility to debilitating and lethal diseases.How do cells regulate the activity of these channels? How might we restore their normal function? In Ion Channel Regulation, many of the experts who pioneered these discoveries provide detailed summaries of our current understanding of the molecular mechanisms that control ion channel activity. Reviews brain functioning at the fundamental, molecular level Describes key systems that control signaling between and within cells Explains how channels are used to stimulate growth and changes to activity of the nucleus and genome
Book Synopsis Comprehensive Electrocardiology by : Peter W. Macfarlane
Download or read book Comprehensive Electrocardiology written by Peter W. Macfarlane and published by Springer Science & Business Media. This book was released on 2010-11-05 with total page 2310 pages. Available in PDF, EPUB and Kindle. Book excerpt: New edition of the classic complete reference book for cardiologists and trainee cardiologists on the theory and practice of electrocardiography, one of the key modalities used for evaluating cardiology patients and deciding on appropriate management strategies.
Book Synopsis Cardiac Arrhythmias by : Ambrose S. Kibos
Download or read book Cardiac Arrhythmias written by Ambrose S. Kibos and published by Springer Science & Business Media. This book was released on 2013-12-13 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all the major aspects associated with pathophysiological development of cardiac arrhythmias (covering enhanced or suppressed automaticity, triggered activity, or re-entry), from basic concepts through disease association, limitations of current pharmacotherapy and implant therapies and on-going trials and analysis of new biomarkers based on current knowledge of cellular interaction and signalling. The book describes novel and state-of-the-art methods for differentiating between the major types of arrhythmia, structural abnormalities and current practice guidelines and determination of risk stratification associated with sudden cardiac death. A particular focus is on arrhythmias associated with atrial fibrillation and includes details of associations with cardiac disease, current detection, analysis and imaging and future perspectives.
Book Synopsis Inflammation in Heart Failure by : Matthijs Blankesteijn
Download or read book Inflammation in Heart Failure written by Matthijs Blankesteijn and published by Academic Press. This book was released on 2014-12-05 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inflammation in Heart Failure, edited by W. Matthijs Blankesteijn and Raffaele Altara, is the first book in a decade to provide an in-depth assessment on the causes, symptoms, progression and treatments of cardiac inflammation and related conditions. This reference uses two decades of research to introduce new methods for identifying inflammatory benchmarks from early onset to chronic heart failure and specifically emphasizes the importance of classifying at-risk subgroups within large populations while determining the patterns of cytokines in such classifications. Further, the book details clinical applications of the pathophysiological mechanisms of heart failure, diagnosis and therapeutic strategies. Inflammation in Heart Failure’s breadth of subject matter, easy-to-follow structure, portability, and high-quality illustrations create an accessible benefit for researchers, clinicians and students. Presents updated information and research on the relevant inflammatory mediators of heart failure to aid in targeting future translational research as well as the improvement of early diagnosis and treatment Provides research into better understanding the different inflammatory mediators that signal the underlying diseases that potentially lead to heart failure Contains 20 years of research, offering a brief overview of the topic leading to current opinions on, and treatment of, heart failure Provides a structured, systematic and balanced overview of the role of inflammation in heart failure making it a useful resource for researchers and clinicians, as well as those studying cardiovascular diseases
Book Synopsis Signal Transduction by : Bastien D. Gomperts
Download or read book Signal Transduction written by Bastien D. Gomperts and published by Gulf Professional Publishing. This book was released on 2003-10-15 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Signal Transduction is a text reference on cellular signalling processes. Starting with the basics, it explains how cells respond to external cues (hormones, cytokines, neurotransmitters, adhesion molecules, extracellular matrix etc), and shows how these inputs are integrated and co-ordinated. The first half of the book provides the conceptual framework, explaining the formation and action of second messengers, particularly cyclic nucleotides and calcium, and the mediation of signal pathways by GTP-binding proteins. The remaining chapters deal with the formation of complex signalling cascades employed by cytokines and adhesion molecules, starting at the membrane and ending in the nucleus, there to regulate gene transcription. In this context, growth is an important potential outcome and this has relevance to the cellular transformations that underlie cancer. The book ends with a description at the molecular level of how signalling proteins interact with their environment and with each other through their structural domains. Each main topic is introduced with a historical essay, detailing the sources, key observations and experiments that set the scene for recent and current work.
