Neural Control of Renal Function

Neural Control of Renal Function PDF Author: Ulla Kopp
Publisher: Morgan & Claypool Publishers
ISBN: 1615042318
Category : Medical
Languages : en
Pages : 99

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Book Description
The kidney is innervated with efferent sympathetic nerve fibers reaching the renal vasculature, the tubules, the juxtaglomerular granular cells, and the renal pelvic wall. The renal sensory nerves are mainly found in the renal pelvic wall. Increases in efferent renal sympathetic nerve activity reduce renal blood flow and urinary sodium excretion by activation of α1-adrenoceptors and increase renin secretion rate by activation of β1-adrenoceptors. In response to normal physiological stimulation, changes in efferent renal sympathetic nerve activity contribute importantly to homeostatic regulation of sodium and water balance. The renal mechanosensory nerves are activated by stretch of the renal pelvic tissue produced by increases in renal pelvic tissue of a magnitude that may occur during increased urine flow rate. Activation of the sensory nerves elicits an inhibitory renorenal reflex response consisting of decreases in efferent renal sympathetic nerve activity leading to natriuresis. Increasing efferent sympathetic nerve activity increases afferent renal nerve activity which, in turn, decreases efferent renal sympathetic nerve activity by activation of the renorenal reflexes. Thus, activation of the afferent renal nerves buffers changes in efferent renal sympathetic nerve activity in the overall goal of maintaining sodium balance. In pathological conditions of sodium retention, impairment of the inhibitory renorenal reflexes contributes to an inappropriately increased efferent renal sympathetic nerve activity in the presence of sodium retention. In states of renal disease or injury, there is a shift from inhibitory to excitatory reflexes originating in the kidney. Studies in essential hypertensive patients have shown that renal denervation results in long-term reduction in arterial pressure, suggesting an important role for the efferent and afferent renal nerves in hypertension. Table of Contents: Part I: Efferent Renal Sympathetic Nerves / Introduction / Neuroanatomy / Neural Control of Renal Hemodynamics / Neural Control of Renal Tubular Function / Neural Control of Renin Secretion Rate / Part II: Afferent Renal Sensory Nerves / Introduction / Neuroanatomy / Renorenal Reflexes / Mechanisms Involved in the Activation of Afferent Renal Sensory Nerves / Part III: Pathophysiological States / Efferent Renal Sympathetic Nerves / Afferent Renal Sensory Nerves / Conclusions / References

Neural Control of Renal Function

Neural Control of Renal Function PDF Author: Ulla Kopp
Publisher: Morgan & Claypool Publishers
ISBN: 1615042318
Category : Medical
Languages : en
Pages : 99

Get Book Here

Book Description
The kidney is innervated with efferent sympathetic nerve fibers reaching the renal vasculature, the tubules, the juxtaglomerular granular cells, and the renal pelvic wall. The renal sensory nerves are mainly found in the renal pelvic wall. Increases in efferent renal sympathetic nerve activity reduce renal blood flow and urinary sodium excretion by activation of α1-adrenoceptors and increase renin secretion rate by activation of β1-adrenoceptors. In response to normal physiological stimulation, changes in efferent renal sympathetic nerve activity contribute importantly to homeostatic regulation of sodium and water balance. The renal mechanosensory nerves are activated by stretch of the renal pelvic tissue produced by increases in renal pelvic tissue of a magnitude that may occur during increased urine flow rate. Activation of the sensory nerves elicits an inhibitory renorenal reflex response consisting of decreases in efferent renal sympathetic nerve activity leading to natriuresis. Increasing efferent sympathetic nerve activity increases afferent renal nerve activity which, in turn, decreases efferent renal sympathetic nerve activity by activation of the renorenal reflexes. Thus, activation of the afferent renal nerves buffers changes in efferent renal sympathetic nerve activity in the overall goal of maintaining sodium balance. In pathological conditions of sodium retention, impairment of the inhibitory renorenal reflexes contributes to an inappropriately increased efferent renal sympathetic nerve activity in the presence of sodium retention. In states of renal disease or injury, there is a shift from inhibitory to excitatory reflexes originating in the kidney. Studies in essential hypertensive patients have shown that renal denervation results in long-term reduction in arterial pressure, suggesting an important role for the efferent and afferent renal nerves in hypertension. Table of Contents: Part I: Efferent Renal Sympathetic Nerves / Introduction / Neuroanatomy / Neural Control of Renal Hemodynamics / Neural Control of Renal Tubular Function / Neural Control of Renin Secretion Rate / Part II: Afferent Renal Sensory Nerves / Introduction / Neuroanatomy / Renorenal Reflexes / Mechanisms Involved in the Activation of Afferent Renal Sensory Nerves / Part III: Pathophysiological States / Efferent Renal Sympathetic Nerves / Afferent Renal Sensory Nerves / Conclusions / References

Cardiac Remodeling and Failure

Cardiac Remodeling and Failure PDF Author: Pawan K. Singal
Publisher: Springer Science & Business Media
ISBN: 9781402071775
Category : Medical
Languages : en
Pages : 570

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Book Description
The importance of the developmental approach for experimental and clinical cardiology is indisputable. Clinical-epidemiological studies have clearly shown that the risk factors of serious cardiovascular diseases, such as atherosclerosis and ischemic heart disease, are already present during the early phases of ontogenetic development. Furthermore, congenital cardiovascular malformations remain the single largest cause of infant mortality from congenital defects in industrial countries. It is therefore not surprising that the interest of theoretical and clinical cardiologists in the developmental approach keeps increasing. Advances in molecular biology accelerated this trend substantially. This book is based on contributions presented at the international symposium The Developing Heart in Prague in May 2000. It is our contention that the biological, electrophysiological, morphological, functional, biochemical and functional approaches employed by distinguished scientists worldwide will provide the reader with a global picture for changes characterizing the developing heart. It should stimulate the curiosity of cardiovascular scientists in gaining insight into the mechanisms of normal and pathological development.

Textbook of Nephro-Endocrinology

Textbook of Nephro-Endocrinology PDF Author: Ajay K. Singh
Publisher: Academic Press
ISBN: 0080920462
Category : Medical
Languages : en
Pages : 534

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Book Description
The Textbook of Nephro-Endocrinology is the definitive translational reference in the field of nephro-endocrinology, investigating both the endocrine functions of the kidneys and how the kidney acts as a target for hormones from other organ systems. It offers researchers and clinicians expert, gold-standard analyses of nephro-endocrine research and translation into the treatment of diseases such as anemia, chronic kidney disease (CKD), rickets, osteoporosis, and, hypoparathyroidism. - Investigates both the endocrine functions of the kidneys and how the kidney acts as a target for hormones from other organ systems - Presents a uniquely comprehensive and cross-disciplinary look at all aspects of nephro-endocrine disorders in one reference work - Clear translational presentations by the top endocrinologists and nephrologists in each specific hormone or functional/systems field

Reflex Control of the Circulation

Reflex Control of the Circulation PDF Author: Irving H. Zucker
Publisher: CRC Press
ISBN: 1000725383
Category : Medical
Languages : en
Pages : 1088

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Book Description
Reflex Control of the Circulation presents an interdisciplinary discussion of concepts in the reflex control of circulation. This volume describes aspects of autonomic receptor physiology, central pathways of reflex control, the electrophysiology of cardiovascular afferents, the interaction between reflexes, the autonomic control of regional blood flows, the autonomic control of fluid and electrolyte balance, and neurohumoral control of the circulation through normal and pathological states (e.g., hypertension, congestive heart failure). In addition, the regulation of regional blood flow during exercise and developmental aspects of reflex control are examined. Any researcher interested in the autonomic system and its role in circulation will find this book fascinating reading.

The Nervous System and the Heart

The Nervous System and the Heart PDF Author: Gert J. Ter Horst
Publisher: Springer Science & Business Media
ISBN:
Category : Medical
Languages : en
Pages : 592

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Book Description
There are physiological bases for associations of the heart with emotions, and with the apparently universal increased mortality in winter. Thirteen contributions integrate expertise in cardiology and neuroscience in overviewing the latest knowledge about head-heart interactions. The first five chapters explain autonomic control of cardiovascular functions, the neural supply of the heart, and neuropathology. Part II examines the effects of stress on the hypothalamo-pituitary-adrenal system and the heart. Part III treats the neurobiology and neuroimaging of cardiac pain. Next, humoral factors in cardiovascular regulation and as mediators of inflammation in coronary artery disease are considered. Finally, the relationship between heart disease and cognitive/neuropsychiatric disorders is discussed. Includes photomicrographs, schematic drawings, and nice large print.

Cellular and Molecular Biology of the Renin-Angiotensin System

Cellular and Molecular Biology of the Renin-Angiotensin System PDF Author: Mohan K. Raizada
Publisher: CRC Press
ISBN: 1351087398
Category : Science
Languages : en
Pages : 455

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Book Description
Cellular and Molecular Biology of the Renin-Angiotensin System provides the first review and update of the state-of-the-art cellular and molecular aspects of the renin-angiotensin system. The book presents detailed analyses from world experts on each component of this system, including future directions. Topics range from angiotensin II receptor subtypes to processing of renin to the use of transgenic animal models for studying the role of this system in hypertension. Cellular and Molecular Biology of the Renin-Angiotensin System is essential reading for physiologists of the renin-angiotensin system, endocrinologists, cardiovascular specialists, renal physiologists, and neurobiologists.

Aldosterone-Mineralocorticoid Receptor

Aldosterone-Mineralocorticoid Receptor PDF Author: Brian Harvey
Publisher: BoD – Books on Demand
ISBN: 1839621982
Category : Medical
Languages : en
Pages : 302

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Book Description
This book is an open access dissemination of the EU COST Action ADMIRE in Aldosterone/Mineralocorticoid Receptor (MR) physiology and pathophysiology. Aldosterone is the major hormone regulating blood pressure. Alterations in blood levels of aldosterone and genetic mutations in the MR receptor are major causes of hypertension and comorbidities. Many of the drugs in clinical use, and in development for treating hypertension, target aldosterone and MR actions in the kidney and cardiovascular system. The ADMIRE book assembles review chapters from 16 European ADMIRE laboratories providing the latest insights into mechanisms of aldosterone synthesis/secretion, aldosterone/MR physiology and signaling, and the pathophysiological roles of aldosterone/MR activation.

Hypertension in Postmenopausal Women

Hypertension in Postmenopausal Women PDF Author: Michel E. Safar
Publisher: Springer Science & Business Media
ISBN: 3642790771
Category : Medical
Languages : en
Pages : 125

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Book Description
On the occasion of the symposium on Hypertension in Postmenopausal Women (Monte Carlo, January 19-22, 1994), international scientists and clinicians discussed the various aspects of high blood pressure in older women. This volume presents an overview of this important aspect of both cardiology and gynecology. Special emphasis is given to the different approaches to antihypertension treatment.

Principles of Endocrinology and Hormone Action

Principles of Endocrinology and Hormone Action PDF Author: Antonino Belfiore
Publisher: Springer
ISBN: 9783319446745
Category : Medical
Languages : en
Pages : 0

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Book Description
This volume provides comprehensive coverage of the current knowledge of the physiology of the endocrine system and hormone synthesis and release, transport, and action at the molecular and cellular levels. It presents essential as well as in-depth information of value to both medical students and specialists in Endocrinology, Gynecology, Pediatrics, and Internal Medicine. Although it is well established that the endocrine system regulates essential functions involved in growth, reproduction, and homeostasis, it is increasingly being recognized that this complex regulatory system comprises not only hormones secreted by the classic endocrine glands but also hormones and regulatory factors produced by many organs, and involves extensive crosstalk with the neural and immune system. At the same time, our knowledge of the molecular basis of hormone action has greatly improved. Understanding this complexity of endocrine physiology is crucial to prevent endocrine disorders, to improve the sensitivity of our diagnostic tools, and to provide the rationale for pharmacological, immunological, or genetic interventions. It is such understanding that this book is designed to foster.

Thirst and Sodium Appetite

Thirst and Sodium Appetite PDF Author: Sebastian Peter Grossman
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 312

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Book Description
Thirst and Sodium Appetite ...