Author: Francesco Di FuscoPublisher:
ISBN:
Category :
Languages : en
Pages : 260
Book Description
Studies on Adenylyl Cyclase/cAMP Signal Transduction in Hypertension and Cardiac Hypertrophy
Author: Francesco Di FuscoSignal Transduction and Cardiac Hypertrophy
Author: Naranjan S. DhallaPublisher: Springer Science & Business Media
ISBN: 1461503477
Category : Medical
Languages : en
Pages : 778
Book Description
Cellular signaling in cardiac muscle refers to the myriad of stimuli and responses that direct and control the physiological operation of this organ. Our understand ing of these complex signaling cascades has increased dramatically over the past few decades with the advent of molecular tools for their dissection. Moreover, this infor mation is beginning to provide tangible targets towards manipulating cardiac func tion in the setting of cardiovascular disease. The mechanisms and factors that regulate cardiac cell growth are of particular interest as both adaptive and maladaptive responses can occur during cardiac hypertrophy. Cardiac hypertrophy describes the increase in individual cardiac myocyte size that is accomplished through the series and/or parallel addition of sarcomeres. The ability of cardiac muscle to increase in size through hyperplasia becomes highly restricted or negligible shortly after birth. Consequently, the increase in heart size associated with development and growth of an individual occurs through hypertrophy. In response to a chronic increase in workload, cardiac muscle cells can dramatically increase in size to face their increasing contractile demands. While this plasticity is clearly a ben eficial response under many conditions, it can be highly deleterious and inappropri ate under others. For example, cardiac hypertrophy associated with endurance exercise clearly enhances athletic performance. In contrast, the hypertrophy associated with chronic hypertension, stenotic or regurgitant heart valves, or following a myocardial infarction often continues far beyond the period where this adaptive response is ben eficial.
The Hypertrophied Heart
Author: Nobuakira TakedaPublisher: Springer Science & Business Media
ISBN: 1461544238
Category : Medical
Languages : en
Pages : 490
Book Description
Whenever the heart is challenged with an increased work load for a prolonged period, it responds by increasing its muscle mass--a phenomenon known as cardiac hypertrophy. Although cardiac hypertrophy is commonly seen under physiological conditions such as development and exercise, a wide variety of pathological situa tions such as hypertension (pressure overload), valvular defects (volume overload), myocardial infarction (muscle loss), and cardiomyopathy (muscle disease) are also known to result in cardiac hypertrophy. Various hormones such as catecholamines, thyroid hormones, angiotensin II, endothelin, and growth factors have also been shown to induce cardiac hypertrophy. Although the exact mechanisms underlying or pathological forrns of cardiac hypertrophy are poorly under the physiological stood, an increase in the intraventricular pressure is believed to represent the major stimulus for the development of cardiac hypertrophy. In this regard, stretching of the cardiac muscle has been shown to induce the hypertrophic response, but the role of metabolic influences in this process cannot be ruled out. Furthermore, different hormones and other interventions in the absence of stretch have been observed to stimulate protein synthesis in both isolated cardiomyocyte and vascular myocyte preparations. Nonetheless, it is becoming dear that receptor as well as phospholipid linked signal transduction pathways are activated in some specific manner depend ing upon the initial hypertrophic stimulus, and these then result in an increase in the size and mass of cardiomyocytes.
Encyclopedia of Signaling Molecules
Author: Sangdun ChoiPublisher: Springer
ISBN: 9781493968008
Category : Medical
Languages : en
Pages : 6330
Book Description
The second edition of this encyclopedia presents over 400 biologically important signaling molecules and the content is built on the core concepts of their functions along with early findings written by some of the world’s foremost experts. The molecules are described by recognized leaders in each molecule. The interactions of these single molecules in signal transduction networks will also be explored. This encyclopedia marks a new era in overview of current cellular signaling molecules for the specialist and the interested non-specialist alike. Currently, there are more than 30,000 genes in human genome. However, not all the proteins encoded by these genes work equally in order to maintain homeostasis. Understanding the important signaling molecules as completely as possible will significantly improve our research-based teaching and scientific capabilities.
Signal Transduction in the Cardiovascular System in Health and Disease
Author: Ashok K. SrivastavaPublisher: Springer Science & Business Media
ISBN: 0387095519
Category : Medical
Languages : en
Pages : 426
Book Description
Signal Transduction in Cardiovascular System Health and Disease highlights the major contributions of different signaling systems in modulating normal cardiovascular functions and how a perturbation in these signaling events leads to abnormal cell functions and cardiovascular disorders. This title is volume 3 in the new Springer series, Advances in Biochemistry in Health and Disease.
Cardiac Hypertrophy and Failure
Author: Bernard SwynghedauwPublisher:
ISBN:
Category : Medical
Languages : en
Pages : 718
Book Description
Cardiac insufficiency, a major cause of premature mortality, is a key focus of medical and pharmaceutical research. This book aims to bring clinicians and researchers up-to-date on recent biophysical, cellular physiological and molecular biological developments and their clinical applications.
The Failing Heart
Author: Naranjan S. DhallaPublisher: Lippincott Williams & Wilkins
ISBN:
Category : Medical
Languages : en
Pages : 570
Book Description
Canadian Journal of Physiology and Pharmacology
Author: The Endothelium
Author: Michel FélétouPublisher: Morgan & Claypool Publishers
ISBN: 1615041230
Category : Science
Languages : en
Pages : 309
Book Description
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
Author: