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Mechanisms Of Oxygen Toxicity At The Cellular Level
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Book Synopsis Regulation of Tissue Oxygenation, Second Edition by : Roland N. Pittman
Download or read book Regulation of Tissue Oxygenation, Second Edition written by Roland N. Pittman and published by Biota Publishing. This book was released on 2016-08-18 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.
Book Synopsis Mechanisms of Cell Toxicity by : E. Edward Bittar
Download or read book Mechanisms of Cell Toxicity written by E. Edward Bittar and published by JAI Press(NY). This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellular toxicology has entered a new era. No longer are we concerned only with necrotic cell death produced by severe, acute insult (often to multiple intracellular targets) leading to disruption of the cell membrane. New advances in molecular and cellular biology are allowing the dissection of mechanisms of cell death involving more subtle targets within the cell. Toxicology has been very important, not only in understanding the mechanisms, nature, and severity of toxicity and thereby helping in risk assessment, but toxicology has also played a very important role in helping to understand basic biological processes. Historically this has perhaps been most evident in the use of toxic agents to interfere with specific reactions in the body and hence help to dissect out the mechanisms of metabolic processes. For example, the use of chemical inhibitors was very important in understanding the process of oxidative phosphorylation, or the tricarboxylic acid cycle. More recent examples are seen herein where toxicology interfaces with, for example structural biology in the study of the cytoskeletal components and their interactions. Indirectly, an understanding of the mechanisms of endogenous protective systems also improves knowledge of basic cell biology. Toxic insult and manipulation of cell signalling and control mechanisms in cell growth and differentation also highlight how important the discipline of cell toxicity has been and will continue to be a major contributor to our understanding of basic issues in the biological and biomedical sciences. This book offers selected reviews of some of the principal molecular mechanisms of cell toxicity.
Book Synopsis Reactive Oxygen Species (ROS), Nanoparticles, and Endoplasmic Reticulum (ER) Stress-Induced Cell Death Mechanisms by : Loutfy H. Madkour
Download or read book Reactive Oxygen Species (ROS), Nanoparticles, and Endoplasmic Reticulum (ER) Stress-Induced Cell Death Mechanisms written by Loutfy H. Madkour and published by Academic Press. This book was released on 2020-06-27 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reactive Oxygen Species (ROS), Nanoparticles, and Endoplasmic Reticulum (ER) Stress-Induced Cell Death Mechanisms presents the role of ROS?mediated pathways cellular signaling stress, endoplasmic reticulum (ER) stress, oxidative stress, oxidative damage, nanomaterials, and the mechanisms by which metalloids and nanoparticles induce their toxic effects. The book covers the ecotoxicology of environmental heavy metal ions and free radicals on macromolecules cells organisms, heavy metals?induced cell responses, oxidative stress, the source of oxidants, and the roles of ROS, oxidative stress and oxidative damage mechanisms. It also examines the nanotoxicity, cytotoxicity and genotoxicity mechanisms of nanomaterials and the effects of nanoparticle interactions. Antioxidant defense therapy and strategies for treatment round out the book, making it an ideal resource for researchers and professional scientists in toxicology, environmental chemistry, environmental science, nanomaterials and the pharmaceutical sciences. - Covers the ecotoxicology of environmental heavy metal ions and the interactions between specific heavy metals?induced cell responses and oxidative stress - Provides a better understanding of the mechanism of nanomaterial-induced toxicity as a first defense for hazard prevention - Covers recent advances in new nanomedication technologies for the effects of NPs on oxidative stress, ROS and ER stress - Discusses the effects of interactions between antioxidant defense therapy, ROS and strategies for treatment
Book Synopsis Human Hemoglobins by : Howard Franklin Bunn
Download or read book Human Hemoglobins written by Howard Franklin Bunn and published by W.B. Saunders Company. This book was released on 1977 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the dawn of the era of molecular biology, hemoglobin has been subjected to more scrutiny than any other protein, and Bunn, Forget, and Ranney can each lay claim to major contributions to the saga of hemoglobin. Their well-organized, comprehensive, and superbly illustrated work is an excellent review of the abnormal hemoglobin field. Early chapters deal with the structure and function of human hemoglobin and the way in which this is modified in various disease states. Later sections deal with the various structural hemoglobin variants and their associated clinical manifestations, the thalassaemias, and the acquired disorders of hemoglobin. The sections that deal with the modification of hemoglobin function in various disease states are particularly good. The book contains an extensive and up-to-date bibliography and is remarkably free from errors of fact or type--the best standard of reference on the subject as of the year 1977.
Book Synopsis Research on Oxygen Toxicity at the Cellular Level by : Willis H. Riesen
Download or read book Research on Oxygen Toxicity at the Cellular Level written by Willis H. Riesen and published by . This book was released on 1966 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of pure oxygen atmospheres at reduced pressure in manned spacecraft has stimulated new research interest. Exposure of humans to pure oxygen at total pressures of 5 to 7 psia for up to 30 days has generally produced only subjective and occasional symptomatic distress. Nevertheless, studies with animals have clearly documented toxicity if the exposure to pure oxygen is at higher total pressures. The selection of suitable oxygen atmospheres for manned space flight and the development of protective measures against toxic manifestations will be considerably facilitated by a clearer understanding of the toxic syndrome. Rats, dogs, and monkeys were exposed to pure (98.5%) oxygen at 1 atm and 1/3 atm in a closed, recirculating chamber and in a nonrecirculating chamber. Rats exposed to a pressure of 1 atm showed significant reduction in efficiency of liver mitochondrial oxidative phosphorylation. Weight loss accompanied this change. Insignificant changes were found in liver or lung mitochondrial oxygen consumption; liver or lung NAD, NADH, or NAD/NADH; and arterial blood lactate and pyruvate, and lactate/pyruvate ratio. A composite index of oxygen toxicity was derived from a multivariant data analysis. Exposure of rats to pure oxygen at 1/3 atm showed slight elevation in P/O ratio in 7 days. The ratio returned to normal in 2 weeks and remained so for 8 months. No significant weight changes were observed. Only preliminary experiments with the dogs and monkeys were conducted, therefore no conclusions can as yet be made. There is an indication that monkeys are more resistant to oxygen toxicity at 1 atm than rats.
Book Synopsis The Discovery of Oxygen by : Joseph Priestley
Download or read book The Discovery of Oxygen written by Joseph Priestley and published by . This book was released on 1894 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Newborn Lung by : Eduardo Bancalari
Download or read book The Newborn Lung written by Eduardo Bancalari and published by Elsevier Health Sciences. This book was released on 2018-06-19 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Richard Polin's Neonatology Questions and Controversies series highlights the most challenging aspects of neonatal care, offering trustworthy guidance on up-to-date diagnostic and treatment options in the field. In each volume, renowned experts address the clinical problems of greatest concern to today's practitioners, helping you handle difficult practice issues and provide optimal, evidence-based care to every patient. - Stay fully up to date in this fast-changing field with The Newborn Lung, 3rd Edition. - The most current clinical information throughout, including key management strategies that may reduce some of the chronic sequelae of neonatal respiratory failure. - New content on the role of microbiome in lung injury and lung development. - Current coverage of non-invasive respiratory support, perinatal events and their influence on lung development and injury, cell-based lung therapy, automation of respiratory support, and oxygenation targeting in preterm infants. - Consistent chapter organization to help you find information quickly and easily. - The most authoritative advice available from world-class neonatologists who share their knowledge of new trends and developments in neonatal care. Purchase each volume individually, or get the entire 7-volume set!Gastroenterology and NutritionHematology, Immunology and GeneticsHemodynamics and CardiologyInfectious Disease and Pharmacology New Volume!Nephrology and Fluid/Electrolyte PhysiologyNeurologyThe Newborn Lung
Book Synopsis Translational Research in Traumatic Brain Injury by : Daniel Laskowitz
Download or read book Translational Research in Traumatic Brain Injury written by Daniel Laskowitz and published by CRC Press. This book was released on 2016-04-21 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traumatic brain injury (TBI) remains a significant source of death and permanent disability, contributing to nearly one-third of all injury related deaths in the United States and exacting a profound personal and economic toll. Despite the increased resources that have recently been brought to bear to improve our understanding of TBI, the developme
Download or read book Neonatology written by Giuseppe Buonocore and published by Springer. This book was released on 2018-10-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This landmark book, a reference work now in its second edition, provides healthcare practitioners in neonatology with an up-to-date, comprehensive source of readily accessible practical advice that will assist in the expert management of patients and their diverse illnesses. Leading experts in their fields discuss the underlying causes and mechanisms and all aspects of the treatment of the full range of neonatal diseases and abnormalities, citing the evidence base whenever appropriate. In addition, detailed information is provided on epidemiology and fetal medicine; therapeutic issues such as the organization of care, transport services, and home care after discharge; legal issues; nutrition; and the consequences of medication use during pregnancy, maternal drug abuse and smoking, and maternal diabetes. The inclusion of summaries, tables, and carefully selected guidelines and recommendations will supply practitioners with quick references and instant solutions during daily practice. The book will be a superb resource for all involved in the care of newborn babies, including neonatologists, pediatricians, pediatric surgeons, anesthesiologists, midwives, and nursing staff. It is published within the SpringerReference program, which delivers access to living editions constantly updated through a dynamic peer-review publishing process.
Book Synopsis Scientific Frontiers in Developmental Toxicology and Risk Assessment by : National Research Council
Download or read book Scientific Frontiers in Developmental Toxicology and Risk Assessment written by National Research Council and published by National Academies Press. This book was released on 2000-12-21 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Frontiers in Developmental Toxicology and Risk Assessment reviews advances made during the last 10-15 years in fields such as developmental biology, molecular biology, and genetics. It describes a novel approach for how these advances might be used in combination with existing methodologies to further the understanding of mechanisms of developmental toxicity, to improve the assessment of chemicals for their ability to cause developmental toxicity, and to improve risk assessment for developmental defects. For example, based on the recent advances, even the smallest, simplest laboratory animals such as the fruit fly, roundworm, and zebrafish might be able to serve as developmental toxicological models for human biological systems. Use of such organisms might allow for rapid and inexpensive testing of large numbers of chemicals for their potential to cause developmental toxicity; presently, there are little or no developmental toxicity data available for the majority of natural and manufactured chemicals in use. This new approach to developmental toxicology and risk assessment will require simultaneous research on several fronts by experts from multiple scientific disciplines, including developmental toxicologists, developmental biologists, geneticists, epidemiologists, and biostatisticians.
Book Synopsis Toxicology of Cyanides and Cyanogens by : Alan H. Hall
Download or read book Toxicology of Cyanides and Cyanogens written by Alan H. Hall and published by John Wiley & Sons. This book was released on 2015-10-13 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: The basic and applied toxicology of cyanides and cyanogens has widespread commercial, occupational, environmental, clinical, forensic, military, and public health implications. This book provides a detailed and updated reference describing the properties, uses, general and human toxicology, clinical recognition, diagnosis and medical management, and countermeasures is therefore required in academic, medical, occupational, environmental, medico-legal, regulatory, emergency response, and military arenas. Edited by a world-renowned team of experts from academia, defense and industry, this book will be an invaluable reference for professionals, researchers and students in cyanide and cyanogens.
Author :United States. Public Health Service. Office of the Surgeon General Publisher : ISBN 13 : Total Pages :728 pages Book Rating :4.:/5 (318 download)
Book Synopsis How Tobacco Smoke Causes Disease by : United States. Public Health Service. Office of the Surgeon General
Download or read book How Tobacco Smoke Causes Disease written by United States. Public Health Service. Office of the Surgeon General and published by . This book was released on 2010 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.
Book Synopsis Physiology and Medicine of Hyperbaric Oxygen Therapy by : Tom S. Neuman
Download or read book Physiology and Medicine of Hyperbaric Oxygen Therapy written by Tom S. Neuman and published by Elsevier Health Sciences. This book was released on 2008-06-05 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by internationally recognized leaders in hyperbaric oxygen therapy (HBOT) research and practice, this exciting new book provides evidence-based, practical, useful information for anyone involved in HBOT. It outlines the physiologic principles that constitute the basis for understanding the clinical implications for treatment and describes recent advances and current research, along with new approaches to therapy. This book is an essential tool for anyone who cares for patients with difficult-to-heal wounds, wounds from radiation therapy, carbon monoxide poisoning, and more. Provides comprehensive coverage of pathophysiology and clinically relevant information so you can master the specialty. Covers the relevance of HBOT in caring for diverse populations including critical care patients, infants and pediatric patients, and divers. Features a section on the technical aspects of HBOT to provide insight into the technology and physics regarding HBO chambers. Presents evidence to support the effectiveness of HBOT as well as the possible side effects. Describes situations where HBOT would be effective through indication-specific chapters on chronic wounds, radiation and crush injuries, decompression sickness, and more.
Book Synopsis Mechanisms of Drug Toxicity by : H. Rašková
Download or read book Mechanisms of Drug Toxicity written by H. Rašková and published by Elsevier. This book was released on 2013-10-22 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanisms of Drug Toxicity, Volume 4 presents the proceedings of the 3rd International Pharmacological Meeting held in Sao Paulo, Brazil in 1966. The book discusses the drug-induced pathobiotic effects; the mechanisms of adverse reactions; and enzyme induction in the mechanism of chronic toxicity. The text also describes the influence of inducing substances on the growth of liver and microsomal electron transport systems; the quantitative aspects of chronic toxicity; and the facts and fallacies in predicting drug effects in human.
Download or read book Hazardous Gases written by Jaspal Singh and published by Academic Press. This book was released on 2021-07-17 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hazardous Gases: Risk Assessment on Environment and Human Health examines all relevant routes of exposure, inhalation, skin absorption and ingestion, and control measures of specifics hazardous gases resulting from workplace exposure from industrial processes, traffic fumes, and the degradation of waste materials and how they impacts the health and environment of workers. The book examines the risk assessment and effect of poisonous gases on the environment human health. It also covers necessary emergency guidelines, safety measures, physiological impact, hazard control measures, handling and storage of hazardous gases. Each chapter is formatted to include an introduction, historical background, physicochemical properties, physiological role discussing mechanisms of toxicity, its effect on human health as well as environment, followed by case studies and recent research on toxic gases. Hazardous Gases: Risk Assessment on Environment and Human Health is a helpful resource for academics and researchers in toxicology, occupational health and safety, and environmental sciences as well as those in the field who work to assess and mitigate the impact of toxic gases on the work environment and the health of the workforce. - Emphasizes the environmental monitoring in the workplace of hazardous materials - Includes all relevant storage and handling information required for detailing all personnel on the hazards and risks from the substances with which they work - Offers practical examples and case studies related to toxic gases and their impact on health
Download or read book Oxygen Sensing written by and published by Elsevier. This book was released on 2004-05-10 with total page 867 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability of cells to sense and respond to changes in oxygenation underlies a multitude of developmental, physiological, and pathological processes. This volume provides a comprehensive compendium of experimental approaches to the study of oxygen sensing in 48 chapters that are written by leaders in their fields.
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
