Download or read book Intestinal Absorption of Metal Ions Trace Elements and Radionuclides written by S. C. Skoryna and published by Elsevier. This book was released on 2013-10-22 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intestinal Absorption of Metal Ions, Trace Elements, and Radionuclides focuses on the transport of metal ions across biological membranes. The selection first discusses fundamental considerations of ion transport across biological membranes, including passage of ions through the pores of gels or membranes; mobilities of organic and inorganic ions in water; and complexing of alkali metal ions. The text then focuses on ion transport across membranes of high ionic selectivity and transmissivity and their uses in model studies; model systems for transcellular active transport; and detection and implications of active salt transport across biological membranes. The book takes a look at the intestinal absorption of sodium, calcium, and potassium, including sodium and potassium transport in the intestines; use of radioisotopes to assess intestinal flux of calcium in humans; and calcium and structure of cell membranes. The intestinal absorption of zinc, cobalt, and strontium and absorption of copper from the gastrointestinal tract are underscored. The selection is a recommendable source of data for readers interested in the transport of metal ions across biological membranes.
Download or read book Intestinal Absorption of Metal Ions and Chelates written by H. DeWayne Ashmead and published by Charles C. Thomas Publisher. This book was released on 1985 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intestinal Absorption of Mental Ions Trace Elements and Radionuclides written by Stanley C. Skoryna and published by . This book was released on 1971 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intestinal Absorption of Metal Ions Trace Elements and Radionucleides written by D. Waldron-Edward and published by . This book was released on 1971 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gastrointestinal Absorption of Selected Radionuclides written by and published by . This book was released on 1988 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Parasitology written by and published by Academic Press. This book was released on 1974-11-29 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Parasitology
Download or read book Zinc Clinical and Biochemical Significance written by Stephen C. Cunnane and published by CRC Press. This book was released on 2018-01-10 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: In keeping with the etiology theme, it also became apparent that the clinical aspects needed to be strictly separated from the animal aspects of zinc metabolism, a separation that has never previously been attempted. Although this division, like the separation of primary from secondary zinc depletion, may be somewhat arbitrary, it is the author‘s impression that current knowledge of the truly clinical aspects of zinc metabolism is too often confused with its effects in animals. The two will frequently be similar, but not always. In this book, therefore, animal studies are considered in part 2 (Biochemistry. Only a handful of references to animal studies has been included in part 1 (Clinical). The purpose of this separation is to clearly distinguish animal from human, experimental from clinical. Too many of the animal studies have involved severe and prolonged zinc deficiency or other exaggerated nutritional conditions that cannot be realistically applied in the clinical setting. Furthermore, animal studies are mainly or primary (dietary) zinc depletion, whereas in humans, secondary zinc depletion is more prevalent and has a more diverse etiology.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Third International Workshop Neuherberg Federal Republic of Germany April 1984 written by Peter Brätter and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-06-21 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: No detailed description available for "Proceedings of the Third International Workshop Neuherberg, Federal Republic of Germany, April 1984".
Download or read book Copper Proteins and Copper Enzymes written by Rene Lontie and published by CRC Press. This book was released on 2018-02-06 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes of Copper Proteins and Copper Enzymes are intended to describe the contemporary spectroscopy and other biophysical chemistry now being applied to copper proteins in order to determine the structures of their active sites. Several chapters of the treatise describe the functional understanding which is emerging from the new work. The authors are all major contributors to research progress on copper proteins and the volumes will be found to be definitive and authoritative.
Download or read book Physiologic and Chemical Basis for Metal Toxicity written by B. Venugopal and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our purpose is to provide understanding for appropriate use of metals in a technical society. Knowledge of metal toxicity is needed for the preven tion, prediction, diagnosis, and therapy of adverse reactions from excess metals in mammals. Metal Toxicity in Mammals is presented in two volumes. Volume 1, Physiologic and Chemical Basis for Metal Toxic ity, provides the basis for understanding the toxic actions of metals recorded in Volume 2, Chemical Toxicity of Metals and Metalloids. The details and bases for many concepts summarized in Volume I are given, with appropriate references, in Volume 2. Thus, references for specific items in Volume 2 are not generally given in Volume 1. The authors reviewed the known toxicity of several heavy metals in anticipation of their use as multinutrient markers for NASA. As more and more metals were considered, the need for a complete review became obvious. This treatise supplants onerous searches of metal-toxicity litera ture up to 1975 and reviews the toxicity of all the metals of the periodic table on the basis of available relevant data. Books on pharmacological, nutritional, medical, veterinary, or industrial toxicity contain information about selected metals. More complete data about metals of public concern, such as mercury, lead, and cadmium, may be found in numerous books and reviews. The reader should refer to general texts and basic reference works, when specific references are not given, for general information.
Download or read book Trace Elements and Iron in Human Metabolism written by Ananda Prasad and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each year, it becomes more apparent that trace elements play an important role in human metabolism. The concept is no longer new. The literature on the subject is voluminous. Dr. Prasad, who has been interested in this field for many years, has undertaken the enormous task of bringing our knowledge together in a comprehensive fashion. This monograph should prove very informative and extremely useful to everyone who is concemed with human disease and with the maintenance of good health. His coverage of the subject is broad. Because ofthe importance of iron, in addition to "trace" elements, in human metabolism and nutrition, a chapter dealing with iron has been included. Maxwell M. Wintrobe, M.D. vii PREFACE It has been known for several decades that many elements are present in living tissues, but it was not possible to measure their precise concentra tions until recently. They were therefore referred to as occurring in "trace" amounts, and this practice led to the use of the term "trace elements." Although techniques now available are such that virtually alI trace elements can be determined with reasonable accuracy, the designation "trace ele ments" remains in popular usage.
Download or read book Principles of Animal Extrapolation 1991 written by Edward J. Calabrese and published by CRC Press. This book was released on 2017-11-22 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Animal Extrapolation addresses the conceptual basis for animal extrapolation and provides an abundance of documentation that illustrates how these principles may be applied in the selection of the more appropriate models and in the interpretation of toxicological studies. The book analyzes and documents each specific biological cause of interspecies differences in susceptibility to toxic agents, including differences in absorption, gut flora, tissue distribution, metabolism, mechanisms and efficiencies of repair, and excretion. The problem of the heterogenicity of the human population is addressed through several chapters that assess the availability and prospects of developing predictive animal models for normal humans, as well as selected potential high-risk groups. Other topics presented in this book include the biological basis of regulatory actions involving attempts to extrapolate from exceptionally high exposure levels to realistic values, especially carcinogens; an assessment of genotoxicity tests, their ability to predict carcinogenicity in whole animals, and the manner in which they should be used by regulatory agencies; birth defects; and predicting the risk of human teratogenesis. Principle of Animal Extrapolation is essential for environmental toxicologists. It also provides valuable information to biomedical scientists (especially those involved in drug development and testing) and regulatory personnel in agencies such as the EPA, the OSHA, the NIOSH, and the FDA.
Download or read book National Library of Medicine Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1971 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.
Download or read book Pharmacology of Intestinal Permeation I written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intestine, particularly the small bowel, represents a large surface (in the adult 2 human approximately 200m ) through which the body is exposed to its environment. A vigorous substrate exchange takes place across this large surface: nutrients and xenobiotics are absorbed from the lumen into the bloodstream or the lymph, and simultaneously, the same types of substrate pass back into the lumen. The luminal surface of the intestine is lined with a "leaky" epithelium, thus the passage of the substrates, in either direction, proceeds via both transcellular and intercellular routes. Simple and carrier-mediated diffusion, active transport, pinocytosis, phagocytosis and persorption are all involved in this passage across the intestinal wall. The term "intestinal permeation" refers to the process of passage of various substances across the gut wall, either from the lumen into the blood or lymph, or in the opposite direction. "Permeability" is the condition of the gut which governs the rate of this complex two-way passage. The pharmacologist's interest in the problem of intestinal permeation is twofold: on the one hand, this process determines thebioavailability of drugs and contributes significantly to the pharmacokinetics and toxicokinetics of xeno biotics; on the other hand, the pharmacodynamic effects of many drugs are manifested in a significant alteration of the physiological process of intestinal permeation.
Download or read book U S Environmental Protection Agency Library System Book Catalog Holdings as of July 1973 written by United States. Environmental Protection Agency. Library Systems Branch and published by . This book was released on 1974 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biochemistry of Copper written by Maria C. Linder and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Copper has long been known as essential to living systems, in part through its fundamental role in electron transport and respiration. Over the years into the present, its involvement in an ever increasing number of processes in all kinds of organisms has become apparent, and new and exciting vistas of its roles in such areas as the central nervous system, and in humoral functions, are appearing on the horizon. Although the biochemistry of this element has not been studied nearly as much as that of many others, a for midable amount of work has been carried out. It has thus been a challenge to produce a summary of what has been found that provides both breadth and depth. My goal has been to try to be as comprehensive as possible, within some limitations. I have tried to provide basic information and basic data that should continue to be useful for a long time. The goal has also been to interpret where we currently stand in our knowledge of the structure, function, regulation, and metabolism of Cu-dependent processes and sub stances, especially proteins. Thus, I have tried to make this a source book for historic as well as current information on all aspects of copper bio chemistry, and a summary of our current knowledge of copper-dependent proteins and processes. Most of the research on copper has been carried out on vertebrates, especially mammals. This has played a role in the organization of the book.
