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

Download or read book The Endothelium Part I written by Michel Félétou and published by Biota Publishing. This book was released on 2011-05-01 with total page 308 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

Download or read book Endothelium and Cardiovascular Diseases written by Protasio L. Da Luz and published by Academic Press. This book was released on 2018-02-03 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endothelium and Cardiovascular Diseases: Vascular Biology and Clinical Syndromes provides an in-depth examination of the role of endothelium and endothelial dysfunction in normal vascular function, and in a broad spectrum of clinical syndromes, from atherosclerosis, to cognitive disturbances and eclampsia. The endothelium is a major participant in the pathophysiology of diseases, such as atherosclerosis, diabetes and hypertension, and these entities are responsible for the largest part of cardiovascular mortality and morbidly. Over the last decade major new discoveries and concepts involving the endothelium have come to light. This important reference collects this data in an easy to reference resource. Written by known experts, and covering all aspects of endothelial function in health and disease, this reference represents an assembly of recent knowledge that is essential to both basic investigators and clinicians. - Provides a complete overview of endothelial function in health and diseases, along with an assessment of new information - Includes coverage of groundbreaking areas, including the artificial LDL particle, the development of a new anti-erectile dysfunction agent, a vaccine for atherosclerosis, coronary calcification associated with red wine, and the interplay of endoplasmic reticulum/oxidative stress - Explores the genetic features of endothelium and the interaction between basic knowledge and clinical syndromes

Download or read book The Endothelium Part II written by Michel F. L. Tou and published by Morgan & Claypool Publishers. This book was released on 2011 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: The endothelium controls vascular tone by releasing various vasoactive substances. Additionally, another pathway associated with the hyperpolarization of both endothelial and vascular smooth muscle cells contributes also to endothelium-dependent relaxations (EDHF-mediated responses). These responses involve an increase in the intracellular Ca concentration of the endothelial cells followed by the opening of Ca-activated K channels of small and intermediate conductances (SKCa and IKCa). These channels show a distinct subcellular distribution, suggesting that their activation could be elicited by distinct stimuli. Following KCa activation, the endothelial hyperpolarization can be conducted to the underlying smooth muscle cells by electrical coupling through myo-endothelial gap junctions. In addition, the potassium efflux can lead to the accumulation of potassium ions in the intercellular space and the subsequent activation of smooth muscle Kir2.1 and/or Na/K-ATPase. The hyperpolarization of the smooth muscle cells produces vascular relaxation, predominantly by closing voltage-gated calcium channels, and vasodilatation. EDHFmediated responses are altered in various pathologies or, conversely, act as a compensating mechanism when other endothelial pathways are impaired. A better characterization of EDHF-mediated responses should allow determining whether or not new drugable targets can be identified within this endothelial pathway for the treatment of cardiovascular diseases. Table of Contents: Endothelium-Dependent Hyperpolarizations: The Classical "EDHF" Pathway / Conclusion / References

Download or read book The Endothelium Part II written by Michel Félétou and published by Biota Publishing. This book was released on 2011-05-01 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The endothelium controls vascular tone by releasing various vasoactive substances. Additionally, another pathway associated with the hyperpolarization of both endothelial and vascular smooth muscle cells contributes also to endothelium-dependent relaxations (EDHF-mediated responses). These responses involve an increase in the intracellular Ca concentration of the endothelial cells followed by the opening of Ca-activated K channels of small and intermediate conductances (SKCa and IKCa). These channels show a distinct subcellular distribution, suggesting that their activation could be elicited by distinct stimuli. Following KCa activation, the endothelial hyperpolarization can be conducted to the underlying smooth muscle cells by electrical coupling through myo-endothelial gap junctions. In addition, the potassium efflux can lead to the accumulation of potassium ions in the intercellular space and the subsequent activation of smooth muscle Kir2.1 and/or Na/K-ATPase. The hyperpolarization of the smooth muscle cells produces vascular relaxation, predominantly by closing voltage-gated calcium channels, and vasodilatation. EDHFmediated responses are altered in various pathologies or, conversely, act as a compensating mechanism when other endothelial pathways are impaired. A better characterization of EDHF-mediated responses should allow determining whether or not new drugable targets can be identified within this endothelial pathway for the treatment of cardiovascular diseases. Table of Contents: Endothelium-Dependent Hyperpolarizations: The Classical "EDHF" Pathway / Conclusion / References

Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Cerebral Circulation written by Marilyn J. Cipolla and published by Biota Publishing. This book was released on 2016-07-28 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: This e-book will review special features of the cerebral circulation and how they contribute to the physiology of the brain. It describes structural and functional properties of the cerebral circulation that are unique to the brain, an organ with high metabolic demands and the need for tight water and ion homeostasis. Autoregulation is pronounced in the brain, with myogenic, metabolic and neurogenic mechanisms contributing to maintain relatively constant blood flow during both increases and decreases in pressure. In addition, unlike peripheral organs where the majority of vascular resistance resides in small arteries and arterioles, large extracranial and intracranial arteries contribute significantly to vascular resistance in the brain. The prominent role of large arteries in cerebrovascular resistance helps maintain blood flow and protect downstream vessels during changes in perfusion pressure. The cerebral endothelium is also unique in that its barrier properties are in some way more like epithelium than endothelium in the periphery. The cerebral endothelium, known as the blood-brain barrier, has specialized tight junctions that do not allow ions to pass freely and has very low hydraulic conductivity and transcellular transport. This special configuration modifies Starling's forces in the brain microcirculation such that ions retained in the vascular lumen oppose water movement due to hydrostatic pressure. Tight water regulation is necessary in the brain because it has limited capacity for expansion within the skull. Increased intracranial pressure due to vasogenic edema can cause severe neurologic complications and death.

Download or read book Inflammation and the Microcirculation written by D. Neil Granger and published by Morgan & Claypool Publishers. This book was released on 2010 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microcirculation is highly responsive to, and a vital participant in, the inflammatory response. All segments of the microvasculature (arterioles, capillaries, and venules) exhibit characteristic phenotypic changes during inflammation that appear to be directed toward enhancing the delivery of inflammatory cells to the injured/infected tissue, isolating the region from healthy tissue and the systemic circulation, and setting the stage for tissue repair and regeneration. The best characterized responses of the microcirculation to inflammation include impaired vasomotor function, reduced capillary perfusion, adhesion of leukocytes and platelets, activation of the coagulation cascade, and enhanced thrombosis, increased vascular permeability, and an increase in the rate of proliferation of blood and lymphatic vessels. A variety of cells that normally circulate in blood (leukocytes, platelets) or reside within the vessel wall (endothelial cells, pericytes) or in the perivascular space (mast cells, macrophages) are activated in response to inflammation. The activation products and chemical mediators released from these cells act through different well-characterized signaling pathways to induce the phenotypic changes in microvessel function that accompany inflammation. Drugs that target a specific microvascular response to inflammation, such as leukocyte-endothelial cell adhesion or angiogenesis, have shown promise in both the preclinical and clinical studies of inflammatory disease. Future research efforts in this area will likely identify new avenues for therapeutic intervention in inflammation. Table of Contents: Introduction / Historical Perspectives / Anatomical Considerations / Impaired Vasomotor Responses / Capillary Perfusion / Angiogenesis / Leukocyte-Endothelial Cell Adhesion / Platelet-Vessel Wall Interactions / Coagulation and Thrombosis / Endothelial Barrier Dysfunction / Epilogue / References

Download or read book Endothelial Biomedicine written by William C. Aird and published by . This book was released on 2007 with total page 1922 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book to systematically integrate knowledge about the endothelium from different organ-specific disciplines.

Download or read book Endothelial Dysfunction written by Helena Lenasi and published by BoD – Books on Demand. This book was released on 2018-10-24 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The endothelium enables communication between blood and tissues and is actively involved in cardiovascular homeostasis. Endothelial dysfunction has been recognized as an early step in the development of cardiovascular diseases: respectively, endothelium represents a potential therapeutic niche with multiple targets. The purpose of the book is to point out some recent findings of endothelial physiology and pathophysiology emphasizing various aspects of endothelial dysfunction connected to the body's internal and external environment. While basic features of the endothelium are presented in an introductory chapter, the authors of the following 17 chapters have provided extensive insight into some selected topics of endothelial (dys)function. The book would hopefully be useful for anyone interested in recapitulating endothelial (patho)physiology and expanding knowledge of molecular mechanisms involved in endothelial dysfunction, relevant also for further clinical investigations.

Download or read book Cardiovascular Pharmacology Endothelial Control written by and published by Academic Press. This book was released on 2010-12-16 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiovascular disease remains a major cause of death and disability in developed countries and, increasingly so, in the developing world. Presented in this volume of Advances in Pharmacology are some of the most promising possibilities for treating large numbers of individuals afflicted with these conditions. - Contains up-to-date reviews of the most important emerging cardiovascular therapies written by world leaders in the field

Download or read book Regulation of Endothelial Barrier Function written by Sarah Y. Yuan and published by Biota Publishing. This book was released on 2011-02-01 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vascular endothelium lining the inner surface of blood vessels serves as the first interface for circulating blood components to interact with cells of the vascular wall and surrounding extravascular tissues. In addition to regulating blood delivery and perfusion, a major function of vascular endothelia, especially those in exchange microvessels (capillaries and postcapillary venules), is to provide a semipermeable barrier that controls blood–tissue exchange of fluids, nutrients, and metabolic wastes while preventing pathogens or harmful materials in the circulation from entering into tissues. During host defense against infection or tissue injury, endothelial barrier dysfunction occurs as a consequence as well as cause of inflammatory responses. Plasma leakage disturbs fluid homeostasis and impairs tissue oxygenation, a pathophysiological process contributing to multiple organ dysfunction associated with trauma, infection, metabolic disorder, and other forms of disease. In this book, we provide an updated overview of microvascular endothelial barrier structure and function in health and disease. The discussion is initiated with the basic physiological principles of fluid and solute transport across microvascular endothelium, followed by detailed information on endothelial cell–cell and cell–matrix interactions and the experimental techniques that are employed to measure endothelial permeability. Further discussion focuses on the signaling and molecular mechanisms of endothelial barrier responses to various stimulations or drugs, as well as their relevance to several common clinical conditions. Taken together, this book provides a comprehensive analysis of microvascular endothelial cell and molecular pathophysiology. Such information will assist scientists and clinicians in advanced basic and clinical research for improved health care.

Download or read book Basic Physiology for Anaesthetists written by David Chambers and published by Cambridge University Press. This book was released on 2019-07-25 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Easily understood, up-to-date and clinically relevant, this book provides junior anaesthetists with an essential physiology resource.

Download or read book Hemodynamics and Mechanobiology of Endothelium written by Tzung K. Hsiai and published by World Scientific. This book was released on 2010 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book represents a paradigm shift from the traditional static model of investigation of oxidative biology to the dynamic model of vascular oxidative stress. The investigation of vascular biology and cardiovascular medicine is made possible by the use of tissue engineering, nanotechnology and stem cell research. This is the first textbook to target a wide readership from academia to industry and government agencies in the field of cardiovascular diseases.

Download or read book Neurologic Aspects of Systemic Disease Part I written by Jose Biller and published by Newnes. This book was released on 2014-01-09 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systemic disease involves several parts of the body or the complete system. Neurologic Aspects of Systemic Disease, a three-part volume in the Handbook of Clinical Neurology series, focuses on the specific neurologic aspects of systemic disease. Part 1 includes detailed coverage of cardiovascular disease, pulmonary diseases, renal diseases, and rheumatologic and musculoskeletal disease. Each chapter provides a complete introduction to the neurologic aspect and provides best known diagnostic and treatment practices. The collection is a valuable and trusted resource for clinical neurologists, research neurologists, neuroscientists, and general medical professionals; a first stop for a focused review of the state of the art for understanding the neurologic impact of each covered disease. - A comprehensive introduction and overview of the neurologic aspects of systemic disease - Part 1 covers cardiovascular disease, pulmonary diseases, renal diseases and rheumatologic/musculoskeletal disease - Each chapter focuses on the neurologic aspects related to a specific disease presentation

Download or read book Manual of Neurosonology written by László Csiba and published by Cambridge University Press. This book was released on 2016-04-28 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurosonology is non-invasive, portable, and has excellent temporal resolution, making it a valuable and increasingly popular tool for the diagnosis and monitoring of neurological conditions when compared to other imaging techniques. This guide looks beyond the use of neurovascular ultrasound in stroke to encompass a wide range of other neurological diseases and emergencies. It offers a practical approach to the examination of patients, interpretation of ultrasound studies, and the application of neurosonology to the development of management and treatment strategies. Each chapter incorporates a thorough and clear procedural methodology alongside scanning tips for trainees; this step-by-step approach is further enhanced by example images and focused diagnostic questions. Authored and edited by international experts, this practical manual of neurosonology is an invaluable resource for neurologists, neurosurgeons, intensivists, radiologists, and ultrasonographers.

Download or read book Neuro Oncology Part I written by Wolfgang Grisold and published by Elsevier. This book was released on 2012-02-11 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Clinical Neurology: Neuro-Oncology, Part I summarizes the present state of scientific and clinical knowledge in the field of neuro-oncology, including information related to diagnostic techniques such as imaging, along with immunology, molecular biology, and clinical aspects of tumors. Management and new therapeutic strategies for tumors, including gene therapy and molecularly targeted treatments, are also covered. Divided into eight sections encompassing 61 chapters, the book begins with an overview of the basic principles of tumors, including the epidemiology of primary central nervous system tumors, angiogenesis and invasion in cancer, the link between blood-brain barrier and brain edema, and the role of stem cells in gliomas. It proceeds with a discussion of diagnostic tools such as neuroimaging, the principles of tumor therapy such as radiotherapy and immunotherapy, and clinical trials in neuro-oncology. The reader is also introduced to specific tumor types such as low-grade gliomas, anaplastic astrocytomas, and medulloblastoma and primitive neuroectodermal tumors, along with rare brain tumors like neurofibromatosis and other genetic syndromes. Furthermore, the book explains the neurological complications of systemic cancer and complications from treatments. This volume will appeal to clinicians and neuroscientists as well as researchers who want to gain a better understanding of the clinical features and management of the neurological manifestations of tumors. - An invaluable resource that includes critical, in-depth insights into recent developments in neuro-oncology - A fresh perspective on molecular biology, immunology, and other clinical aspects of tumors of the nervous system - Extensive coverage of tumor management and new therapeutic strategies, including gene therapy and molecularly targeted treatments - New tactics and therapies that will aid clinicians in their quest to provide optimal care for their neuro-oncological patients