Endothelin In The Kidney
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Endothelin In Renal Physiology And Disease
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Author : M. Barton
language : en
Publisher: Karger Medical and Scientific Publishers
Release Date : 2011-09-01
Endothelin In Renal Physiology And Disease written by M. Barton and has been published by Karger Medical and Scientific Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-01 with Medical categories.
Endothelin is a 21-amino acid peptide that exerts uniquely potent and long-lasting effects on the kidney, including regulation of water and electrolyte excretion, blood pressure, cell growth, inflammation and fibrosis. During the past 10 years, the field has evolved rapidly; we are now uncovering the potential importance of endothelin receptor antagonists (ERAs) in the treatment of kidney disease.This book reviews experimental concepts, preclinical studies and clinical data which form the basis of our current understanding of the association between endothelin and kidney disease. Acclaimed experts in pharmacology, molecular biology, physiology, cardiovascular medicine, and nephrology have contributed timely reviews dealing with renal pharmacology and physiology of endothelin, the role of endothelin in renal disease development and ERAs in preclinical studies, and the current state of clinical development of ERA therapy in renal medicine.The publication at hand will be a valuable reference source for nephrologists, internists and other healthcare professionals, renal physiologists and molecular biologists, post-doctoral researchers and students in the life sciences, as well as for scientists and decision makers in drug research and development.
Endothelin In The Kidney
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Author : David Pollock
language : en
Publisher: Biota Publishing
Release Date : 2011-11-01
Endothelin In The Kidney written by David Pollock and has been published by Biota Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-11-01 with Medical categories.
The discovery of a potent vasoconstrictor, endothelin (ET)-1, derived from vascular endothelial cells was among a variety of key lines of investigation that helped to fuel a major explosion of studies related to endothelial cell biology. This was particularly evident within the pharmaceutical industry where receptor antagonists were quickly developed and are now on the market for treatment of pulmonary hypertension and in development for other diseases such as diabetic nephropathy and cancer. Importantly, we know that the kidney contains the highest level of ET-1 production and receptor expression in the body where it has been demonstrated to function as a pro-natriuretic autocrine and paracrine factor that is activated in conditions of high salt intake. This eBook provides a review of the various mechanisms whereby ET-1 has been shown to function within the kidney through a wide range of actions that include direct effects on tubular transport, intrarenal hemodynamics, as well as neural and endocrine functions. Much has yet to be discerned, but it is clear that the ET system is a major physiological regulator of fluid-electrolyte balance and blood pressure through these renal actions. Table of Contents: Discovery of Endothelin / Basic Biology of the Endothelin System / Renal Localization / Renal Hemodynamics / Renal Tubular Actions of Endothelin / Endothelin in Neural Modulation of Renal Function / Physiological Role of Endothelin / Endothelin in Renal Pathology / References / Author Biographies
The Role Of Hypoxia For The Development Of Diabetic Nephropathy
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Author : Stephanie Franzén
language : en
Publisher: Linköping University Electronic Press
Release Date : 2016-03-09
The Role Of Hypoxia For The Development Of Diabetic Nephropathy written by Stephanie Franzén and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-09 with categories.
Diabetic nephropathy is one of the most common causes of end stage renal disease and develops in approximately one third of all diabetes patients. Disease progression is characterized by deteriorating glomerular filtration rate and escalating urinary albumin/protein excretion; both are used as clinical markers for disease progression. Recently, it has been proposed that intrarenal hypoxia is a unifying mechanism for chronic kidney disease, including diabetic nephropathy. Several mechanistic pathways have been linked to the development of intrarenal hypoxia and diabetic nephropathy including increased angiotensin II signaling, oxidative stress and hyperglycemia per se. Furthermore, pathological endothelin signaling has recently immerged as a possible contributing factor for chronic kidney disease and diabetic nephropathy. The overall aims of this thesis were therefore to determine the temporal relationship between development of intrarenal hypoxia and kidney disease as well as elucidate the potential link between endothelin signaling, intrarenal hypoxia and kidney disease in experimental insulinopenic diabetes. It is well established that different mouse strains have different susceptibility for kidney and cardiovascular disease. The first step was therefore to compare four commonly used mouse strains with regards to development of kidney disease after onset of insulinopenic diabetes. From the results of this study, we concluded that the NMRI mouse strain has a disease progression closest to the human disease and this strain was chosen in the subsequent studies in mice. The next step was to adapt and optimize a suitable method for repetitive measurements of intrarenal oxygen tension during the course of disease development. Electron paramagnetic resonance (EPR) oximetry had previously been used in tumor biology and was now adapted and optimized for measurements of kidney oxygenation in our diabetic mouse model. EPR oximetry in normoglycemic control mice recorded cortical oxygen tension values similar to previous reports using invasive techniques. Surprisingly, intrarenal hypoxia developed already within the first 72h after induction of hyperglycemia and persisted throughout the two-week study period. Importantly, this was well before albuminuria developed. The final part of this thesis was to investigate the role of endothelin signaling for the intrarenal hypoxia in a diabetic rat model. Endothelin 1 signals via two distinctly different receptor-mediated pathways. In normal physiology, endothelin 1 binding to endothelin receptor type A (ETA) induces vasoconstriction, which can be blocked by the specific ETA antagonist BQ123, whereas endothelin 1 binding to endothelin receptor type B (ETB) induces nitric oxide-dependent vasodilation. ETB receptors can be selectively activated by Sarafotoxin 6c. The results from blocking ETA and activating ETB receptors demonstrated that endothelin 1 signaling via ETA receptors contributes to intrarenal hypoxia in the rat diabetic kidney, and that ETB stimulation significantly reduces the diabetes-induced intrarenal hypoxia. The beneficial effects on kidney oxygen availability in diabetes by ETA blockade or ETB stimulation were mainly linked to hemodynamic improvements rather than direct effects on kidney oxygen consumption or oxidative stress status. In conclusion, by applying EPR oximetry in a mouse model of insulinopenic diabetes mimicking the human disease, we demonstrated intrarenal hypoxia already within the first couple of days after the onset of hyperglycemia, which is well before detectable signs of kidney disease development. Furthermore, blockade of ETA or activation of ETB receptors significantly reduced intrarenal hypoxia in the diabetic kidney. These results demonstrate involvement of ETA receptor signaling in diabetes-induced intrarenal hypoxia and ETA blockade or ETB activation might provide new therapeutical targets to reduce kidney hypoxia and disease progression in diabetes.
Endothelin Receptors And Signaling Mechanisms
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Author : David M. Pollock
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Endothelin Receptors And Signaling Mechanisms written by David M. Pollock and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
This book focuses on the wide variety of intracellular events that occur as a result of endothelin receptor activation. This includes a discussion of the various pathways by which endothelin activates Ca2+ signals from several intra- and extracellular sources and the effects of endothelin on ion channels and membrane function. In addition, the mechanisms by which endothelin influences the ion transport within the renal epithelium are covered, as well as the signal transduction pathways activated by endothelin in both cardiac tissue and vascular smooth muscle.
The Endothelins
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Author : Winifred G. Nayler
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Endothelins written by Winifred G. Nayler and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
"What we call the beginning is often the end, and to make an end is to make a beginning. The end is where we start from." T. S. ELIOT, "Geroniton" The discovery of endothelin-l was both an end and a beginning. It is an end because this discovery has started a plethora of investigations as to endothe1in's sites of production, mode of action, it's normal and abnormal physiological role and its involvement in a variety of pathological conditions ranging from renal failure to myocardial infarction, cardiac hypertrophy, hyperten sion, cyclosporine induced toxicity, mental depression, renal failure, stress related illness, and even stroke and sudden death. It is a beginning because no one can foresee where the investigations will ultimately lead, or how they will end. The discovery of the endothelins was a very recent event and soon specialist books will start to appear dealing in detail with different aspects of their chemistry, physiological role and pathological importance. The present book is intended to act as a guide and primer for those who are becoming intrigued by the many endothelin related articles which are now appearing in the journals but who as yet have not had the time or opportunity to be caught up in the web of enthusiasm and excitement which is motivating those more directly involved in the field of research.
Endothelin
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Author : Robert F. Highsmith
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Endothelin written by Robert F. Highsmith and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Medical categories.
A unique, integrated collection of original contributions on the molecular biology, physiology, and pathology of endothelin. Leading academic, clinical, and industrial researchers summarize the dramatic recent progress in endothelin research and indicate the optimal direction of future studies. The contributors produce a critical evaluation of endothelin chemistry and pharmacology, its mechanism of action, and its physiological functions. The book is certain to become the new standard reference source for both basic scientists and informed clinicians who want a clear idea of the roles endothelin may play in cardiovascular physiology and pathology.
Endothelin
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Author : Gabor M Rubanyi
language : en
Publisher: Springer
Release Date : 2013-05-27
Endothelin written by Gabor M Rubanyi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-27 with Medical categories.
Merely three years after the discovery of endothelin, a large amount of information has been generated about the molecular biology, biosynthesis, biological actions and potential physiological and pathological importance of this unique peptide and its isoforms. This first book on endothelins summarizes the early events which lead to the discovery of endothelin, the progress made in understanding the peptide's physiological role, and the current state-of-the-art in contemporary endothelin research. The book also discusses the potential significance of endothelins in health and disease, covers the potential role of the peptides in the integrated control of the cardiovascular system, and outlines future research directions. This comprehensive monograph is an indispensable reference for basic scientists and clinicians.
Endothelin Receptors
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Author : Robert R. Ruffolo, Jr.
language : en
Publisher: CRC Press
Release Date : 1995-05-19
Endothelin Receptors written by Robert R. Ruffolo, Jr. and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-05-19 with Science categories.
Since the discovery of endothelin, major advances have been made in understanding the molecular structure and function of the endothelin receptors. At least two subtypes of receptors, designated ETA and ETB, have been identified through biochemical and pharmacological techniques. These subtypes are cloned and expressed and additional subtypes appear to exist. The biochemical events involved in the signal transduction processes that ultimately activate the cellular machinery involved in the end-organ responses are presented, as are the mechanisms by which the receptors recognize specific and different G-proteins. Functions mediated by the receptors at the cellular, tissue and, organ level are reviewed in detail, as well as the roles that they may play a part in the physiologic and pathophysiologic processes in animals and in humans. This book is unique in its breadth of scope. The most recent and important advances, from the intracellular level of the nucleus to the functional effect that endothelin receptors mediate in intact organs, are compiled and reviewed.
Biomarkers In Kidney Disease
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Author : Vinood B. Patel
language : en
Publisher: Springer
Release Date : 2016-03-11
Biomarkers In Kidney Disease written by Vinood B. Patel and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-11 with Medical categories.
In the past decade there has been a major sea change in the way disease is diagnosed and investigated due to the advent of high throughput technologies, such as microarrays, lab on a chip, proteomics, genomics, lipomics, metabolomics etc. These advances have enabled the discovery of new and novel markers of disease relating to autoimmune disorders, cancers, endocrine diseases, genetic disorders, sensory damage, intestinal diseases etc. In many instances these developments have gone hand in hand with the discovery of biomarkers elucidated via traditional or conventional methods, such as histopathology or clinical biochemistry. Together with microprocessor-based data analysis, advanced statistics and bioinformatics these markers have been used to identify individuals with active disease or pathology as well as those who are refractory or have distinguishing pathologies. New analytical methods that have been used to identify markers of disease and is suggested that there may be as many as 40 different platforms. Unfortunately techniques and methods have not been readily transferable to other disease states and sometimes diagnosis still relies on single analytes rather than a cohort of markers. There is thus a demand for a comprehensive and focused evidenced-based text and scientific literature that addresses these issues. Hence the formulation of Biomarkers in Disease. The series covers a wide number of areas including for example, nutrition, cancer, endocrinology, cardiology, addictions, immunology, birth defects, genetics, and so on. The chapters are written by national or international experts and specialists.
Pediatric Kidney Disease
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Author : Denis F. Geary
language : en
Publisher: Springer
Release Date : 2017-02-16
Pediatric Kidney Disease written by Denis F. Geary and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-16 with Medical categories.
The new edition of this valuable clinical resource offers a state of the art, comprehensive review on every clinical condition encountered in pediatric nephrology. International experts present the latest knowledge on epidemiology, diagnosis, management, and prognosis in one concise, clinically focused text, in which care has been taken to couple just the right amount of "need-to-know" basic science with practical clinical guidance that will enable the reader to make efficient, informed decisions. The topics covered include: disorders of renal development, glomerular disorders, the kidney and systemic disease, renal tubular disorders, tubulointerstitial disease, urinary tract disorders, acute kidney injury, hypertension, chronic and end-stage renal disease, and renal replacement therapy. The full-color, highly visual, meticulously crafted format will ensure that the practitioner is able to source and apply information with remarkable ease.