The Endothelium

Author : Michel Félétou
Publisher : Morgan & Claypool Publishers
Page : 309 pages
File Size : 43,5 Mb
Release : 2011
Category : Science
ISBN : 9781615041237

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The Endothelium by Michel Félétou Pdf

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 : Protasio Lemos Da Luz,Peter Libby,Francisco Rafael Martins Laurindo,Antonio Carlos Palandri Chagas
Publisher : Academic Press
Page : 758 pages
File Size : 55,9 Mb
Release : 2018-02-03
Category : Medical
ISBN : 9780128125519

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Endothelium and Cardiovascular Diseases by Protasio Lemos Da Luz,Peter Libby,Francisco Rafael Martins Laurindo,Antonio Carlos Palandri Chagas Pdf

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

Author : Sarah Y. Yuan,Robert R. Rigor
Publisher : Biota Publishing
Page : 160 pages
File Size : 53,6 Mb
Release : 2011-02-01
Category : Medical
ISBN : 9781615041213

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Regulation of Endothelial Barrier Function by Sarah Y. Yuan,Robert R. Rigor Pdf

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.

Author : Bruce Alberts
Publisher : Unknown
Page : 0 pages
File Size : 52,9 Mb
Release : 2002
Category : Cytology
ISBN : 0815332181

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Molecular Biology of The Cell by Bruce Alberts Pdf

Author : Eric A. Jaffe
Publisher : Springer Science & Business Media
Page : 471 pages
File Size : 51,7 Mb
Release : 2012-12-06
Category : Medical
ISBN : 9781461328254

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Biology of Endothelial Cells by Eric A. Jaffe Pdf

The participation of endothelial cells in various physiologic and pathologic processes has been hypothesized since before the turn of the century. However, until recently, direct evidence for endothelial involvement in these processes has been extremely difficult to obtain due to the inability to study endothelial cell function in vitro. Though the possibility of using cultured endothelial cells to study endothelial cell function in vitro was recognized many years ago, the inability to culture unambiguously identifiable endothelial cells limited investigators in their studies of endothelial function. As a result, the field of endothelial cell biology lay relatively fallow for many years. The development in the early 1970's of routine and easily implemented methods for culturing human endothelial cells and the demonstration that cultured endothelial cells synthesized a physiologically relevant protein, Factor VIII/von Willebrand Factor, quickly changed this state of affairs. Over the following decade the scope of endothelial cell research rapidly widened, spreading in a number of directions. First, methods were developed to culture endothelial cells from a variety of species. Second, methods were developed to culture endothelial cells from different organs and types of blood vessels (arteries, veins, and capillaries) within a single species. Third, and most important, investigators began using cultured endothelial cells as tools to study the potential involvement of endothelial cells in a wide assortment of biologically interesting processes. The net result has been a tremendous increase in our understanding of endothelial cell function.

Author : Robert Fitridge,M. M. Thompson
Publisher : University of Adelaide Press
Page : 589 pages
File Size : 41,9 Mb
Release : 2011
Category : Medical
ISBN : 9781922064004

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Mechanisms of Vascular Disease by Robert Fitridge,M. M. Thompson Pdf

New updated edition first published with Cambridge University Press. This new edition includes 29 chapters on topics as diverse as pathophysiology of atherosclerosis, vascular haemodynamics, haemostasis, thrombophilia and post-amputation pain syndromes.

Author : M. Simionescu,N. Simionescu
Publisher : Springer Science & Business Media
Page : 460 pages
File Size : 44,6 Mb
Release : 2013-11-11
Category : Science
ISBN : 9781461309376

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Endothelial Cell Biology in Health and Disease by M. Simionescu,N. Simionescu Pdf

Although blood capillaries were first observed through a flea-lens microscope by Malpighi in 1661,200 more years elapsed before the cellular nature of the vessel wall was conclusively demonstrated. Beginning with the middle of the 19th cen tury, our knowledge of the histological organization of blood vessels has steadily increased. However, the endothelium, which for a long time was considered to be just an inert barrier lining, had been barely explored until three decades ago. Since then, there has been an upsurge of interest in the fine structure and function of endothelial cells. Intense in vivo and in vitro investigations have revealed that the endothelial cell is a key element in a wide variety of normal activities and diseases. A large number of investigators and laboratories have been attracted to endothelial cell research, thus supporting the expansion of the continuously grow ing and diversifying field of endotheliology. The number of articles published annually on this subject has increased from a few score at the beginning of the 1970s to more than a thousand in recent years, and an increasing number of journals, books, societies, and symposia focused primarily on the vascular en dothelium have marked the last decade.

Author : Joshua Scallan,Virginia Heathorn Huxley,Ronald J. Korthuis
Publisher : Morgan & Claypool Publishers
Page : 86 pages
File Size : 53,5 Mb
Release : 2010
Category : Science
ISBN : 9781615040667

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Capillary Fluid Exchange by Joshua Scallan,Virginia Heathorn Huxley,Ronald J. Korthuis Pdf

The partition of fluid between the vascular and interstitial compartments is regulated by forces (hydrostatic and oncotic) operating across the microvascular walls and the surface areas of permeable structures comprising the endothelial barrier to fluid and solute exchange, as well as within the extracellular matrix and lymphatics. In addition to its role in the regulation of vascular volume, transcapillary fluid filtration also allows for continuous turnover of water bathing tissue cells, providing the medium for diffusional flux of oxygen and nutrients required for cellular metabolism and removal of metabolic byproducts. Transendothelial volume flow has also been shown to influence vascular smooth muscle tone in arterioles, hydraulic conductivity in capillaries, and neutrophil transmigration across postcapillary venules, while the flow of this filtrate through the interstitial spaces functions to modify the activities of parenchymal, resident tissue, and metastasizing tumor cells. Likewise, the flow of lymph, which is driven by capillary filtration, is important for the transport of immune and tumor cells, antigen delivery to lymph nodes, and for return of filtered fluid and extravasated proteins to the blood. Given this background, the aims of this treatise are to summarize our current understanding of the factors involved in the regulation of transcapillary fluid movement, how fluid movements across the endothelial barrier and through the interstitium and lymphatic vessels influence cell function and behavior, and the pathophysiology of edema formation. Table of Contents: Fluid Movement Across the Endothelial Barrier / The Interstitium / The Lymphatic Vasculature / Pathophysiology of Edema Formation

Author : D. Neil Granger,Elena Senchenkova
Publisher : Morgan & Claypool Publishers
Page : 99 pages
File Size : 44,7 Mb
Release : 2010
Category : Medical
ISBN : 9781615041657

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Inflammation and the Microcirculation by D. Neil Granger,Elena Senchenkova Pdf

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

Author : Patrick J Vallance,David J. Webb
Publisher : CRC Press
Page : 302 pages
File Size : 42,5 Mb
Release : 2003-09-02
Category : Medical
ISBN : 9780203304952

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Vascular Endothelium in Human Physiology and Pathophysiology by Patrick J Vallance,David J. Webb Pdf

Endothelial dysfunction is now regarded as an early marker of vascular disease and therefore an important target for therapeutic intervention and discovery of novel treatments. Ideal for both basic and clinical scientists, whether in industry or academia, and physicians, Vascular Endothelium in Human Physiology and Pathophysiology provides an up-to-date review of the vascular functions of the endothelium and its role in key areas of cardiovascular disease. It focuses on evidence from studies in humans.

Author : William C. Aird
Publisher : Cambridge University Press
Page : 25 pages
File Size : 43,8 Mb
Release : 2007-09-03
Category : Science
ISBN : 9781139465878

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Endothelial Biomedicine by William C. Aird Pdf

The endothelium, the cell layer that forms the inner lining of blood vessels, is a spatially distributed system that extends to all areas of the human body. Clinical and basic research demonstrates that the endothelium plays a crucial role in mediating homeostasis and is involved in virtually every disease, either as a primary determinant of pathophysiology or as a victim of collateral damage. The endothelium has remarkable, though largely untapped, diagnostic and therapeutic potential. This volume bridges the bench-to-bedside gap in endothelial biomedicine, advancing research and development and improving human health. The book is the first to systematically integrate knowledge about the endothelium from different organ-specific disciplines, including neurology, pulmonary, cardiology, gastroenterology, rheumatology, infectious disease, hematology-oncology, nephrology, and dermatology. It's interdisciplinary approach, which draws on expertise from such diverse fields as evolutionary biology, comparative biology, molecular and cell biology, mathematical modeling and complexity theory, translational research, and clinical medicine.

Author : Michel Félétou
Publisher : Biota Publishing
Page : 308 pages
File Size : 50,7 Mb
Release : 2011-05-01
Category : Science
ISBN : 9781615041244

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The Endothelium, Part I by Michel Félétou Pdf

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 : Thomas F. Luscher,Paul M. Vanhoutte
Publisher : CRC Press
Page : 393 pages
File Size : 45,5 Mb
Release : 2020-04-15
Category : Medical
ISBN : 9781000083316

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The Endothelium by Thomas F. Luscher,Paul M. Vanhoutte Pdf

First published in 1990: The Endothelium: Modulator of Cardiovascular Function takes a comprehensive look at the role of the endothelium in cardiovascular control in health and disease. Experts offer detailed reviews on specific topics that address these roles of the endothelium: diffusion barrier, blood-brain barrier, regulator of capillary permeability, metabolic function (uptake and enzymatic destruction), conversion of vasoactive products, production of prostanoids, production and release of endothelium-derived relaxing factors, production of endothelium-derived contracting factors, production of coagulation factors, production of fibrinolytic factors, reticulo-endothelial function, role in atherosclerosis, and changes in function with aging and disease. This overview provides the reader with an update on the role of one of the most fascinating cells in cardiovascular biology. It focuses on the multiple functions of those cells and offers the first attempt to draw a parallel between these functions. Anyone studying the fields of physiology and pharmacology will benefit from this "must have" reference resource.

Author : Shampa Chatterjee
Publisher : Academic Press
Page : 279 pages
File Size : 46,9 Mb
Release : 2021-01-20
Category : Science
ISBN : 9780128163825

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Endothelial Signaling in Vascular Dysfunction and Disease by Shampa Chatterjee Pdf

Endothelial Signaling in Vascular Dysfunction and Disease: From Bench to Bedside provides a detailed understanding of the endothelium, its activation and their link to some common clinical disorders. In addition, the book covers earlier discoveries, including those from the last and 19th centuries. It is split into five sections that cover the vascular tree as an integrative structure, the endothelium in inflammation, endothelial signaling, activation and toxicity with chemotherapy, radiation induced endothelial dysfunction and vascular disease, and therapies in combating vascular diseases. Each section is discussed with a translational approach in order to make the content truly applicable. This book is a valuable source for basic researchers, clinicians in the fields of Oncology, Cardiovascular Medicine and Radiology, and members of the biomedical field who are conducting studies related to the endothelium and vascular disease. Discusses the most relevant discoveries in endothelial biology and their link to manifestations of clinical disease Presents history and diagrams in each section to highlight the original biological discovery and its link of clinical manifestations of vascular disease Includes recent findings on the relationship between endothelial signaling, chemotherapy and radiation induced endothelial dysfunction

Author : J M Polak
Publisher : CRC Press
Page : 264 pages
File Size : 48,7 Mb
Release : 1998-07-16
Category : Science
ISBN : 905702294X

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Modern Visualisation of the Endothelium by J M Polak Pdf

There can no longer be any doubt that the endothelium represents a very active tissue and is not, as had previously been thought, merely an inert lining material. On the contrary, the endothelium exerts a powerful influence on its environs through the release of multiple regulatory factors such as nitric oxide, endothelium derived hyperpolarizing factor and endothelin. It is therefore crucial to our understanding of the cardiovascular system that we are able to visualize the endothelial layer at the molecular level. Quantitative morphological studies permit visualization at this level, allowing the assessment of the changes that occur in the disease state. Modern methods of computerized image analysis have been applied to reconstruct the endothelial layer in three-dimensions - detecting even the most subtle of changes. Within these covers, an integrated text has been gathered by experts in each of their fields. They detail the latest technical and conceptual advances in the visualization of endothelium, its production of regulatory molecules and pathological changes.