Control Of Gastrointestinal Function
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Neural Control Of Gastrointestinal Function
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Author : David Grundy
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2011-12
Neural Control Of Gastrointestinal Function written by David Grundy and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-12 with Science categories.
The gastrointestinal tract is a long, muscular tube responsible for the digestion of food, assimilation of nutrients and elimination of waste. This is achieved by secretion of digestive enzymes and absorption from the intestinal lumen, with different regions playing specific roles in the processing of specific nutrients. These regions come into play sequentially as ingested material is moved along the length of the GI tract by contractions of the muscle layers. In some regions like the oesophagus transit it rapid and measured in seconds while in others like the colon transit is measured in hours and even days, commensurate with the relative slow fermentation that takes place in the large bowel. An hierarchy of controls, neural and endocrine, serve to regulate the various cellular targets that exist in the gut wall. These include muscle cells for contraction and epithelial cells for secretion and absorption. However, there are complex interactions between these digestive mechanisms and other mechanisms that regulate blood flow, immune function, endocrine secretion and food intake. These ensure a fine balance between the ostensibly conflicting tasks of digestion and absorption and protection from potentially harmful ingested materials. They match assimilation of nutrients with hunger and satiety and they ensure that regions of the GI tract that are meters apart work together in a coordinated fashion to match these diverse functions to the digestive needs of the individual. This ebook will provide an overview of the neural mechanisms that control gastrointestinal function. Table of Contents: Neural Control of Gastrointestinal Function / Cells and Tissues / Enteric Nervous System / From Gut to CNS: Extrinsic Sensory Innervation / Sympathetic Innervation of the Gut / Parasympathetic Innervation of the Gut / Integration of Function / References
Control Of Gastrointestinal Function
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Author : Frank P. Brooks
language : en
Publisher:
Release Date : 1970
Control Of Gastrointestinal Function written by Frank P. Brooks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with categories.
Gastrointestinal Function In Diabetes Mellitus
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Author : Michael Horowitz
language : en
Publisher: John Wiley & Sons
Release Date : 2004-03-05
Gastrointestinal Function In Diabetes Mellitus written by Michael Horowitz and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-03-05 with Medical categories.
Gastrointestinal function represents an important, and hitherto inappropriately neglected, aspect of diabetes management. Disordered gastrointestinal motor and sensory function occurs frequently in both type 1 and type 2 diabetes and may be associated with gastrointestinal symptoms that adversely affect quality of life. During the last two decades there has been a rapid expansion in knowledge in this area. It is now recognised that upper gastrointestinal motility is pivotal to the regulation of postprandial blood glucose concentrations in both health and patients with diabetes. This book is the first of its kind and was stimulated by the need to consolidate these recent advances, which dictate that a knowledge of gastroenterology as it relates to diabetes is now required of the clinician/diabetologist. * Features an organ-specific overview of the epidemiology and pathophysiology of disordered gastrointestinal (including hepatobiliary and pancreatic) function in diabetes mellitus * Contains guidelines for the clinician, diabetologist and gastroenterologist for both diagnosis and management * Includes a comprehensive description of the relation between gastrointestinal function, gastrointestinal hormones, autonomic nerve function and glycaemic control in animal models * Covers the development of new treatment options, particularly those targeted at the reduction of postprandial hyperglycaemia, to optimise glycaemic control This book will be of interest to gastroenterologists, diabetologists, specialist nurses and clinical researchers.
Regulation Of Gastrointestinal Mucosal Growth
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Author : Rao N. Jaladanki
language : en
Publisher: Biota Publishing
Release Date : 2016-11-30
Regulation Of Gastrointestinal Mucosal Growth written by Rao N. Jaladanki and has been published by Biota Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-30 with Medical categories.
The mammalian gastrointestinal mucosa is a rapidly self-renewing tissue in the body, and its homeostasis is preserved through the strict regulation of epithelial cell proliferation, growth arrest, and apoptosis. The control of the growth of gastrointestinal mucosa is unique and, compared with most other tissue in the body, complex. Mucosal growth is regulated by the same hormones that alter metabolism in other tissues, but the gastrointestinal mucosa also responds to host events triggered by the ingestion and presence of food within the digestive tract. These gut hormones and peptides regulate the growth of the exocrine pancreas, gallbladder epithelium, and the mucosa of the oxyntic gland region of the stomach and the small and large intestines. Luminal factors, including nutrients or other dietary factors, secretions, and microbes that occur within the lumen and distribute over a proximal-to-distal gradient, are also crucial for maintenance of normal gut mucosal regeneration and could explain the villous-height-crypt-depth gradient and variety of adaptation, since these factors are diluted, absorbed, and destroyed as they pass down the digestive tract. Recently, intestinal stem cells, cellular polyamines, and noncoding RNAs are shown to play an important role in the regulation of gastrointestinal mucosal growth under physiological and various pathological conditions. In this book, we highlight key issues and factors that control gastrointestinal mucosal growth and homeostasis, with special emphasis on the mechanisms through which epithelial renewal and apoptosis are regulated at the cellular and molecular levels.
The Enteric Nervous System
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Author : John Barton Furness
language : en
Publisher:
Release Date : 1987
The Enteric Nervous System written by John Barton Furness and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Medical categories.
The Enteric Nervous System
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Author : Stuart Brierley
language : en
Publisher: Springer
Release Date : 2016-07-05
The Enteric Nervous System written by Stuart Brierley and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-07-05 with Medical categories.
Nearly 30 years ago, a number of scientists working on the Enteric Nervous System (ENS) gathered at Flinders University, in Adelaide, Australia to discuss the advances and future of their research. It was a friendly and stimulating meeting, attended by most of the major players, in what was to become the discipline of ‘Neurogastroenterology'. In 2014, the main Australasian Neuroscience Society meeting was held in Adelaide, Australia, providing the perfect opportunity to recreate a follow-up ENS meeting. As such, the ‘ENS II 2014 meeting’ aimed to identify how far the field of enteric neuroscience had developed, where the future was heading, and what technological advances had been made to address current and future unresolved questions. 30 speakers from around the world were invited to give talks and revisit the original expectations, the advances made since, and the future directions of ENS research. These discussions included three generations of investigators from 7 different countries. This publication represents the majority of proceedings from the ‘The Enteric Nervous System II 2014’ conference, which was held on February 1st - 2nd 2014 at the National Wine Centre of Australia, Adelaide. This meeting was an Official satellite meeting of the 34th Annual Meeting of Australasian Neuroscience Society, which was also held in Adelaide. The 20 contributions contained within this submission are from international researchers in the field of the ENS, who reviewed the advances made since the first meeting in the early 1980s and summarizes the present and future perspectives of neuro-gastroenterology. Some colleagues could not attend but did send greetings and their messages are included in these proceedings.
The Gastrointestinal Circulation
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Author : Peter R. Kvietys
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2010
The Gastrointestinal Circulation written by Peter R. Kvietys and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Medical categories.
The microcirculation of the gastrointestinal tract is under the control of both myogenic and metabolic regulatory systems. The myogenic mechanism contributes to basal vascular tone and the regulation of transmural pressure, while the metabolic mechanism is responsible for maintaining an appropriate balance between O2 demand and O2 delivery. In the postprandial state, hydrolytic products of food digestion elicit a hyperemia, which serves to meet the increased O2 demand of nutrient assimilation. Metabolically linked factors (e.g., tissue pO2, adenosine) are primarily responsible for this functional hyperemia. The fenestrated capillaries of the gastrointestinal mucosa are relatively permeable to small hydrolytic products of food digestion (e.g., glucose), yet restrict the transcapillary movement of larger molecules (e.g., albumin). This allows for the absorption of hydrolytic products of food digestion without compromising the oncotic pressure gradient governing transcapillary fluid movement and edema formation. The gastrointestinal microcirculation is also an important component of the mucosal defense system whose function is to prevent (and rapidly repair) inadvertent epithelial injury by potentially noxious constituents of chyme. Two pathological conditions in which the gastrointestinal circulation plays an important role are ischemia/reperfusion and chronic portal hypertension. Ischemia/reperfusion results in mucosal edema and disruption of the epithelium due, in part, to an inflammatory response (e.g., increase in capillary permeability to macromolecules and neutrophil infiltration). Chronic portal hypertension results in an increase in gastrointestinal blood flow due to an imbalance in vasodilator and vasoconstrictor influences on the microcirculation. Table of Contents: Introduction / Anatomy / Regulation of Vascular Tone and Oxygenation / Extrinsic Vasoregulation: Neural and Humoral / Postprandial Hyperemia / Transcapillary Solute Exchange / Transcapillary Fluid Exchange / Interaction of Capillary and Interstitial Forces / Gastrointestinal Circulation and Mucosal Defense / Gastrointestinal Circulation and Mucosal Pathology I: Ischemia/Reperfusion / Gastrointestinal Circulation and Mucosal Pathology II: Chronic Portal Hypertension / Summary and Conclusions / References / Author Biography
Oxford Textbook Of Critical Care
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Author : Webb
language : en
Publisher: Oxford University Press
Release Date : 2020-01-10
Oxford Textbook Of Critical Care written by Webb and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-10 with Medical categories.
Now in paperback, the second edition of the Oxford Textbook of Critical Care is a comprehensive multi-disciplinary text covering all aspects of adult intensive care management. Uniquely this text takes a problem-orientated approach providing a key resource for daily clinical issues in the intensive care unit. The text is organized into short topics allowing readers to rapidly access authoritative information on specific clinical problems. Each topic refers to basic physiological principles and provides up-to-date treatment advice supported by references to the most vital literature. Where international differences exist in clinical practice, authors cover alternative views. Key messages summarise each topic in order to aid quick review and decision making. Edited and written by an international group of recognized experts from many disciplines, the second edition of the Oxford Textbook of Critical Careprovides an up-to-date reference that is relevant for intensive care units and emergency departments globally. This volume is the definitive text for all health care providers, including physicians, nurses, respiratory therapists, and other allied health professionals who take care of critically ill patients.
Regulatory Mechanisms In Gastrointestinal Function 1995
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Author : Timothy S. Gaginella
language : en
Publisher: CRC Press
Release Date : 2017-11-22
Regulatory Mechanisms In Gastrointestinal Function 1995 written by Timothy S. Gaginella and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-22 with Medical categories.
Regulatory Mechanisms in Gastrointestinal Function includes a collection of contemporary topics in gastrointestinal research. The control of gastroduodenal electrolyte transport and the influence of drugs on bicarbonate secretion are reviewed in detail. The importance of the interactions between calcium and cyclic-AMP in intestinal secretion is emphasized in a comprehensive chapter that systematically addresses each link in the mechanisms that regulate chloride secretion. Other important topics included in the book are neural reflex modulation of intestinal epithelial transport, the influence of the microcirculation on intestinal secretion, and nitric oxide as a mediator of physiologic and pathophysiologic secretion. The expertise of the authors has resulted in a breadth of important contemporary topics covered in depth.
Introduction To Basics Of Pharmacology And Toxicology
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Author : Abialbon Paul
language : en
Publisher: Springer Nature
Release Date : 2021-03-13
Introduction To Basics Of Pharmacology And Toxicology written by Abialbon Paul and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-13 with Medical categories.
This book explains the pharmacological relationships between the various systems in the human body. It offers a comprehensive overview of the pharmacology concerning the autonomic, central, and peripheral nervous systems. Presenting up-to-date information on chemical mediators and their significance, it highlights the therapeutic aspects of several diseases affecting the cardiovascular, renal, respiratory, gastrointestinal, endocrinal, and hematopoietic systems. The book also includes drug therapy for microbial and neoplastic diseases. It also comprises sections on immunopharmacology, dermatological, and ocular pharmacology providing valuable insights into these emerging and recent topics. Covering the diverse groups of drugs acting on different systems, the book reviews their actions, clinical uses, adverse effects, interactions, and subcellular mechanisms of action. It is divided into 11 parts, subdivided into several chapters that evaluate the basic pharmacological principles that govern the different types of body systems. This book is intended for academicians, researchers, and clinicians in industry and academic institutions in pharmaceutical, pharmacological sciences, pharmacy, medical sciences, physiology, neurosciences, biochemistry, molecular biology and other allied health sciences.