Regulation of Gastrointestinal Mucosal Growth
Regulation of Gastrointestinal Mucosal Growth

Author: Rao N. Jaladanki

Publisher: Biota Publishing

Published: 2016-11-30

Total Pages: 150

ISBN-13: 1615047352

DOWNLOAD EBOOK

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.

Developmental Biology of Gastrointestinal Hormones
Developmental Biology of Gastrointestinal Hormones

Author: M. Wabitsch

Publisher: Karger Medical and Scientific Publishers

Published: 2017-08-16

Total Pages: 200

ISBN-13: 3318059749

DOWNLOAD EBOOK

The gut not only represents the largest endocrine organ of the human body but is also profoundly involved in the control of metabolism through peptide hormones. Therefore, gastrointestinal hormones are acting via autocrine, paracrine, and classical endocrine pathways and regulate e.g. digestion, hunger, and satiety. Furthermore, they are important regulators of body weight, growth, and glucose metabolism, as well as of mood and behavior. Physicians and scientists in the field of pediatric endocrinology and diabetes, as well as in pediatric gastroenterology, require an extensive understanding of the origin of enteroendocrine cells, factors controlling their differentiation, hormone gene expression, secretion, function and, finally, the complex interaction with other organs, especially the central nervous system. In order to meet these needs, experts in the field have written up-to-date, comprehensive, and illustrated reviews presenting the current knowledge in the field of gastrointestinal endocrinology with a pediatric view. Those reviews comprise this latest volume of Endocrine Development.

Gastrointestinal Hormones and Pathology of the Digestive System
Gastrointestinal Hormones and Pathology of the Digestive System

Author: Morton Grossman

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 319

ISBN-13: 1468472488

DOWNLOAD EBOOK

The discovery that the same or similar peptides are present in endocrine cells and in neurons is one of the most exciting and provocative recent developments in biology. Suddenly neurophysiologists and endocrinologists have found that they have a great deal to discuss with each other. Substances originally isolated as hypothalamic hormones turn out to be abundantly present in neurons of other parts of the brain and in endocrine cells and neurons of the gut and pancreas. Similarly, substances originally isolated as gut hormones are found not only in gut endocrine cells but also in gut neurons and in brain neurons. It turns out that the group of peptides that we are accustomed to call gastrointestinal hormones are not all confined to the gastrointestinal tract and are not all solely hormones. We are learning that the chemical transmitters of the neurocrine, endocrine, and paracrine systems form a single group of related substances. This volume contains the latest installments in this fascinating story. It tells how these pep tides were isolated and their amino acid sequences determined, how the heterogeneity of most, perhaps all, of these peptides is being revealed as variant forms of them are discovered, how antibodies to these peptides are used as powerful tools to measure their concentrations in body fluids and to localize the cells in which they are synthesized and stored, and, finally, how the role of these substances in normal physiology and in pathological states is being unraveled.

Gastrointestinal Hormones
Gastrointestinal Hormones

Author: Viktor Mutt

Publisher: Academic Press

Published: 2013-10-22

Total Pages: 556

ISBN-13: 1483215539

DOWNLOAD EBOOK

Advances in Metabolic Disorders, Volume 11: Gastrointestinal Hormones covers the developments in the study of gastrointestinal (GI) hormones. The book discusses the cytochemical techniques in work with GI hormones; the general aspects and problems for the radioimmunoassays of GI hormones in the 80s; and the response of the GI hormone system to the pathological changes. The text also describes the evolutional aspects of GI hormones; the cell membrane receptors for secretagogues on pancreatic acinar cells; and the synthesis of GI hormones using organic chemical or recombinant DNA techniques. Gastrin is reviewed with regard to its forms and fragments in tissues, circulating components during post- and perisecretory processing, cellular origins and distribution, actions and structure-function relations, metabolic disposal, nervous and chemical control for its release, and its role in human pathology. The book further tackles the chemical, anatomical, and biological studies on gastrin-releasing peptides, as well as the physiological actions of gastric inhibitory polypeptide. Discussions about the vasoactive intestinal peptide, incretin, enteroglucagon, neuropeptide Y, peptide HI, galanin, cholecystokinin-58, neuropeptide K, peptide YY, motilin, somatostatin-28, neurotensin, substance P, and opioid peptides are also encompassed. The text concludes by looking into the investigations on the structure and function of the head activator in hydra and in mammals. Molecular biologists, endocrinologists, histochemists, physiologists, and those involved in the research about GI hormones will find the book invaluable.

Gut Peptides
Gut Peptides

Author: John H. Walsh

Publisher: Raven Press (ID)

Published: 1994

Total Pages: 904

ISBN-13:

DOWNLOAD EBOOK

Provides a comprehensive approach to gastrointestinal hormones, for clinicians and scientists who are interested in hormonal regulation of the gastrointestinal tract. The first section discusses general issues related to peptides as messengers, including receptors and signal transduction and control of gene expression. The second section presents the biochemical and physiological features of the gastrointestinal hormones and neuropeptides. The third section integrates these peptides into physiological and pathophysiological regulatory pathways of the gut. Annotation copyright by Book News, Inc., Portland, OR

How Gut and Brain Control Metabolism
How Gut and Brain Control Metabolism

Author: P.J.D. Delhanty

Publisher: Karger Medical and Scientific Publishers

Published: 2014-04-10

Total Pages: 204

ISBN-13: 3318026395

DOWNLOAD EBOOK

Obesity is an epidemic problem not limited to Western society, but also in emerging industrial nations with large populations, especially in Asia. The connection between the gut and the brain is probably one of the most promising therapeutic targets for the treatment of obesity and metabolic syndrome. This book brings together reviews on the current understanding of how the gut and brain communicate in the regulation of metabolism. Individual chapters explore novel aspects of this interaction. A comprehensive update on the roles of smell and taste, the gut microbiome, and novel gut-derived neuropeptides in regulating metabolism via the brain is offered. Furthermore, the regulation of insulin sensitivity in the brain is discussed in detail. Providing an overview of the most recent findings, 'How Gut and Brain Control Metabolism' could spark in the reader new ideas or approaches, thus leading to much-needed new medical treatments. Physicians with an involvement in the treatment of metabolic disease and scientists performing research in the fields of nutrition and obesity will find this book a valuable addition to their bookshelves.