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 Contact Dermatitis written by Peter J. Frosch and published by Springer Science & Business Media. This book was released on 2006 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accompanying CD-ROM includes "all clinical photographs and important diagrams"--p. [vii].
Download or read book Permeability Barrier written by Kursad Turksen and published by Springer Nature. This book was released on 2021-06-30 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This detailed edition reflects the significant new findings in the components of permeability barriers and how they work in different tissues with a collection of cutting-edge techniques. Chapters explore the formation, maintenance, regulation, and dynamics of permeability barriers in an effort to push the boundaries of the field. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and up-to-date, Permeability Barrier: Methods and Protocols, Second Edition serves as an invaluable guide for both experts but novices in the stem cell field and other related areas of research.
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 Permeability Properties of Plastics and Elastomers 2nd Ed written by Liesl K. Massey and published by Cambridge University Press. This book was released on 2003 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively revised and updated second edition of the only data handbook available on the properties of commercial polymeric films details the permeability characteristics of over 125 major plastic and elastomer packaging materials. New to this edition are 92 resin chapters containing textual summary information including: category, general description, processing methods, applications, and general permeability considerations for water vapor, oxygen, and other gases including aroma and flavor. The product data is presented in graphical and tabular format, retaining the familiar format of the first edition and allowing easy comparison between materials and test conditions.
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 Skin Barrier written by Peter M. Elias and published by CRC Press. This book was released on 2005-09-22 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: A must-have reference for any researcher or scientist interested in cutaneous protective mechanisms, this guide provides expertly researched chapters on every aspect of stratum corneum structure, function, and development, as well as detailed sections on barrier-repair strategies and the role of barrier function in diseases such as atopic dermatiti
Download or read book Skin Barrier Function written by T. Agner and published by Karger Medical and Scientific Publishers. This book was released on 2016-02-04 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although a very fragile structure, the skin barrier is probably one of the most important organs of the body. Inward/out it is responsible for body integrity and outward/in for keeping microbes, chemicals, and allergens from penetrating the skin. Since the role of barrier integrity in atopic dermatitis and the relationship to filaggrin mutations was discovered a decade ago, research focus has been on the skin barrier, and numerous new publications have become available. This book is an interdisciplinary update offering a wide range of information on the subject. It covers new basic research on skin markers, including results on filaggrin and on methods for the assessment of the barrier function. Biological variation and aspects of skin barrier function restoration are discussed as well. Further sections are dedicated to clinical implications of skin barrier integrity, factors influencing the penetration of the skin, influence of wet work, and guidance for prevention and saving the barrier. Distinguished researchers have contributed to this book, providing a comprehensive and thorough overview of the skin barrier function. Researchers in the field, dermatologists, occupational physicians, and related industry will find this publication an essential source of information.
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 Assessment of the Performance of Engineered Waste Containment Barriers written by National Research Council and published by National Academies Press. This book was released on 2007-09-22 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: President Carter's 1980 declaration of a state of emergency at Love Canal, New York, recognized that residents' health had been affected by nearby chemical waste sites. The Resource Conservation and Recovery Act, enacted in 1976, ushered in a new era of waste management disposal designed to protect the public from harm. It required that modern waste containment systems use "engineered" barriers designed to isolate hazardous and toxic wastes and prevent them from seeping into the environment. These containment systems are now employed at thousands of waste sites around the United States, and their effectiveness must be continually monitored. Assessment of the Performance of Engineered Waste Containment Barriers assesses the performance of waste containment barriers to date. Existing data suggest that waste containment systems with liners and covers, when constructed and maintained in accordance with current regulations, are performing well thus far. However, they have not been in existence long enough to assess long-term (postclosure) performance, which may extend for hundreds of years. The book makes recommendations on how to improve future assessments and increase confidence in predictions of barrier system performance which will be of interest to policy makers, environmental interest groups, industrial waste producers, and industrial waste management industry.
Download or read book Cosmetic Dermatology written by Zoe Diana Draelos and published by John Wiley & Sons. This book was released on 2015-10-14 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Back for a new edition, Zoe Draelos' outstanding resource to cosmetic dermatology again provides a highly-illustrated, clinical guide to the full range of cosmetic skin treatments. Bringing together experts from research, industry, surgery and practice, it is structured in four distinct parts for easy navigation by the busy clinician: Basic Concepts - giving an overview of the physiology pertinent to cosmetic dermatology and the delivery systems by which treatments can take effect; Hygiene Products - evaluating cleansing and moisturising products; Adornment - looking at aesthetic techniques such as cosmetics, nail protheses and hair treatment; Antiaging - ie, injectables, resurfacing and skin contouring techniques, and the rapidly growing area of Cosmeceuticals. With over 300 high-quality images and key summary boxes throughout, this new edition incorporates the newest procedural innovations in this rapidly developing field. Perfect for all dermatologists, especially those specialising in cosmetic dermatology and whether hospital-based or in private practice, it provides the complete cosmetic regimen for your patients and will be an indispensable tool to consult over and over again.
Download or read book Capillary Fluid Exchange written by Joshua Scallan and published by Morgan & Claypool Publishers. This book was released on 2010 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Film Properties of Plastics and Elastomers written by Laurence W. McKeen and published by William Andrew. This book was released on 2012-04-25 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface -- 1. Introduction to Plastics and Polymers -- 2. Chapter 2 - Introduction to the Mechanical, Thermal and Permeation Properties of Plastics and Elastomers -- 3. Production of films -- 4. Markets and Applications for films -- 5. Styrenic Plastics -- 6. Polyesters -- 8. Polyamides (Nylons) -- 9. Polyolefins -- 10. Polyvinyls & Acrylics -- 11. Fluoropolymers -- 12. High Temperature/High Performance Polymers -- 13. Elastomers and rubbers -- 14. Renewable Resource or biodegradable polymers -- Appendices -- Permeation Unit Conversion Factors -- Vapor Transmission rate Conversion factors.
Download or read book Biology and Regulation of Blood Tissue Barriers written by C. Yan Cheng and published by Springer Science & Business Media. This book was released on 2014-01-25 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was written by many outstanding investigators who have spent decades to study different aspects of blood‐tissue barrier function. They have summarized some of the latest and fascinating development in their fields of research including the blood‐brain barrier, the blood‐retinal barrier, the gut barrier, the blood‐biliary barrier, the blood‐follicle barrier, the blood‐epididymis barrier, the blood‐testis barrier, the tight junction barrier in general as well as barriers in the female reproductive tract. Included are also chapters that focus on topics that are physiologically applicable to all blood‐tissue barriers. Many of these chapters also include information on specific human diseases, such as pathological changes of the gut barrier that cause bowel disorders resulting from inflammation of the epithelial lining in the intestine, and infertility in men as a result of disruption of the blood‐epididymal and/or blood‐testis barriers; and on new therapeutic approaches (e.g., drug delivery across the blood‐brain and the blood‐retinal barriers).
Download or read book Blood Brain Barrier in Drug Discovery written by Li Di and published by John Wiley & Sons. This book was released on 2014-12-29 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focused on central nervous system (CNS) drug discovery efforts,this book educates drug researchers about the blood-brain barrier(BBB) so they can affect important improvements in one of the mostsignificant – and most challenging – areas of drugdiscovery. • Written by world experts to provide practicalsolutions to increase brain penetration or minimize CNSside-effects • Reviews state-of-the-art in silico, in vitro, and invivo tools to assess brain penetration and advanced CNS drugdelivery strategies • Covers BBB physiology, medicinal chemistry designprinciples, free drug hypothesis for the BBB, and transportmechanisms including passive diffusion, uptake/efflux transporters,and receptor-mediated processes • Highlights the advances in modelling BBBpharmacokinetics and dynamics relationships (PK/PD) andphysiologically-based pharmacokinetics (PBPK) • Discusses case studies of successful CNS and non-CNSdrugs, lessons learned and paths to the market
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 Translational Research in Traumatic Brain Injury written by Daniel Laskowitz and published by CRC Press. This book was released on 2016-04-21 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traumatic brain injury (TBI) remains a significant source of death and permanent disability, contributing to nearly one-third of all injury related deaths in the United States and exacting a profound personal and economic toll. Despite the increased resources that have recently been brought to bear to improve our understanding of TBI, the developme
