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| Author | : Sandor Szabo |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 251 |
| Release | : 2012-12-06 |
| Genre | : Medical |
| ISBN | : 1461518679 |
Proceedings of a meeting held in Esterel, Quebec, Canada, September 13-15, 1989.
| Author | : Peter R. Kvietys |
| Publisher | : Morgan & Claypool Publishers |
| Total Pages | : 127 |
| Release | : 2010 |
| Genre | : Medical |
| ISBN | : 1615041176 |
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
| Author | : Rao N. Jaladanki |
| Publisher | : Biota Publishing |
| Total Pages | : 150 |
| Release | : 2016-11-30 |
| Genre | : Medical |
| ISBN | : 1615047352 |
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.
| Author | : Hiroshi Kiyono |
| Publisher | : Elsevier |
| Total Pages | : 501 |
| Release | : 1996-10-23 |
| Genre | : Medical |
| ISBN | : 0080537057 |
This comprehensive, authoritative treatise covers all aspects of mucosal vaccines including their development, mechanisms of action, molecular/cellular aspects, and practical applications. The contributing authors and editors of this one-of-a-kind book are very well known in their respective fields. Mucosal Vaccines is organized in a unique format in which basic, clinical, and practical aspects of the mucosal immune system for vaccine development are described and discussed. This project is endorsed by the Society for Mucosal Immunology. - Provides the latest views on mucosal vaccines - Applies basic principles to the development of new vaccines - Links basic, clinical, and practical aspects of mucosal vaccines to different infectious diseases - Unique and user-friendly organization
| Author | : Adrian Allen (D. Phil.) |
| Publisher | : Raven Press (ID) |
| Total Pages | : 424 |
| Release | : 1984 |
| Genre | : Medical |
| ISBN | : |
| Author | : John L. Wallace |
| Publisher | : CRC Press |
| Total Pages | : 236 |
| Release | : 1989-09-30 |
| Genre | : Medical |
| ISBN | : 084934574X |
This text helps the reader determine whether or not the gastrointestinal mucosa ulcerates can be viewed as a balance between aggressive factors present in the lumen and the mucosal defence system. Several of these aggressive factors, such as acid, bile and pepsin, are endogenous substances. Similarly, several endogenous substances exert control over mucosal blood flow and secretion and thus are important mediators of mucosal defence. In this volume, experts in this field have contributed chapters on some of the most important of these endogenous mediators, including histamine, prostaglandins, leukotrienes and platelet-activating factor. The potential contribution of these mediators to gastrointestinal disease has been assessed. Also discussed is the role these mediators play in gastrointestinal side effects of drugs (i.e. non-steroidal anti-inflammatory drugs). Also covered are the mechanisms of action of endogenous mediators relative to the the drugs used clinically for the treatment of maladies of the digestive system. This volume will be of interest to the basic scientist, the clinical investigator and to students of pathophysiology and medicine.
| Author | : M. Joseph Bojrab |
| Publisher | : Teton NewMedia |
| Total Pages | : 0 |
| Release | : 2010-01-01 |
| Genre | : Medical |
| ISBN | : 9781591610380 |
This text is an ideal resource for the individual performing or learning to perform a surgical procedure. The most qualified experts in the fields of surgery and pathophysiology explain in easy to understand and practical terms the mechanisms by which a disease affects each organ. Mechanisms of Disease in Small Animal Surgery not only helps the practicing veterinarian better understand the function of specific organs effected by disease; but also helps the practitioner explain it and the selected surgical treatment to the client in an easy to understand manner. The highly visual format contains over 500 highly quality illustrations and well conceived tables. It is enormously helpful to veterinary student studying for the boards.
| Author | : Ronald Ross Watson |
| Publisher | : Academic Press |
| Total Pages | : 801 |
| Release | : 2012-10-22 |
| Genre | : Technology & Engineering |
| ISBN | : 0123977649 |
Bioactive Food as Dietary Interventions for Liver and Gastrointestinal Disease provides valuable insights for those seeking nutritional treatment options for those suffering from liver and/or related gastrointestinal disease including Crohn's, allergies, and colitis among others. Information is presented on a variety of foods including herbs, fruits, soy and olive oil. This book serves as a valuable resource for researchers in nutrition, nephrology, and gastroenterology. - Addresses the most positive results from dietary interventions using bioactive foods to impact diseases of the liver and gastrointestinal system, including reduction of inflammation, improved function, and nutritional efficiency - Presents a wide range of liver and gastrointestinal diseases and provides important information for additional research - Associated information can be used to understand other diseases, which share common etiological pathways
| Author | : Andrew Garner |
| Publisher | : John Wiley & Sons |
| Total Pages | : 576 |
| Release | : 1991 |
| Genre | : Medical |
| ISBN | : |
Based on the proceedings of a satellite symposium held in conjunction with the 9th World Congress of Gastroenterology, this book reflects the change in focus of current research to studies of chronic repair rather than acute responses and deeper mucosal elements rather than surface phenomena.
| Author | : Gerard E. Mullin |
| Publisher | : Oxford University Press |
| Total Pages | : 464 |
| Release | : 2019-09-27 |
| Genre | : Medical |
| ISBN | : 0190933062 |
Digestive complaints have become increasingly common. Recent statistics show that gastrointestinal complaints account for nearly a third of all visits to primary care doctors and that nearly one in two Americans suffer from digestive disease. Millions more suffer from conditions such as migraine headaches, arthritis, mood disorders, chronic fatigue, asthma, allergies, and menstrual dysfunction, which are all related to a disorder in digestive health. Despite the evidence in support of integrative approaches to treatment and prevention of digestive symptoms, these approaches are largely overlooked in treating gastrointestinal disorders. Rather, treatment plans tend to be exclusively pharmacologically based and have appreciable toxicity. Integrative Gastroenterology, Second edition, is a comprehensive guide to helping health care practitioners understand and appreciate how to manage patients with gastrointestinal conditions integrating conventional and complimentary approaches. This text reviews the latest advances in science and research with regards to the gut microbiome, physiology, and interconnections between the gut and other organ systems. Coverage includes a diverse range of treatment methods, such as probiotics, meditation, massage, yoga, supplements, special diets, energy medicine, homeopathy, and acupuncture, as well as a special section devoted to mind-body medicine in digestive health and disease. In discussing unconventional treatments, the authors address many of the controversies that surround the remedies.
