Signaling Mechanisms of Oxygen and Nitrogen Free Radicals

Author: Igor B. Afanas'ev
Publisher: CRC Press
ISBN: 9781420073751
Format: PDF, ePub, Docs
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Once the existence of free radicals was proven, an avalanche of studies on free radical-mediated biological processes ensued. The study of reactive oxygen and nitrogen species (ROS and RNS) is center stage in biological free radical investigations. Written by a biochemist, Signaling Mechanisms of Oxygen and Nitrogen Free Radicals discusses the regulatory functions of ROS and RNS in physiological and pathophysiological states. An exploration of the main questions of signaling mechanisms of reactive oxygen and nitrogen species in enzymatic processes, this book draws attention to the chemical mechanisms of these reactions. It elucidates the differences between signaling functions and damaging effects of ROS and RNS in biological systems. The text also covers free radical signaling processes catalyzed by enzymes, producers of superoxide and nitric oxide that are able to use produced ROS and RNS as signaling species in their own catalytic processes. It then examines ROS and RNS signaling produced by mitochondrial enzymes. The author explores signaling functions of ROS and RNS in enzymatic heterolytic reactions, supplying important data on ROS and RNS signaling in the catalysis by the enzymes which do not produce free radicals by themselves. He provides information on signaling by reactive oxygen and nitrogen species in apoptosis and aging/senescence and concludes with coverage of mechanisms of free radical signaling in enzymatic processes. The book provides new understanding of signaling functions in living organisms related to cardiovascular processes, cancer, inflammation, hereditary diseases, and their regulation of physiological functions such as development, aging, and senescence. This information can support the development of new drugs and novel treatment methods.

Studies on Respiratory Disorders

Author: Gautam Kumar Saha
Publisher: Springer Science & Business Media
ISBN: 1493904973
Format: PDF, Kindle
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This volume covers data describing the role of free radicals and antioxidants in respiratory disorders, including the data that deal with clinical and pre-clinical trials. Chapters describe the relationship of oxidative stress to a number of respiratory and pulmonary conditions from a basic science and clinical perspective, including chronic obstructive pulmonary disease, asthma, acute lung injury, pulmonary hypertension, toxicity and fibrosis, cancer and asbestosis. The book also discusses the use of conventional biomarkers of oxidative stress and breath condensates as adjuncts to classical laboratory testing, the effect of antioxidants on cellular protection, as well as the development of novel antioxidant modalities.

Pulmonary Vasculature Redox Signaling in Health and Disease

Author: Yong-Xiao Wang
Publisher: Springer
ISBN: 3319632450
Format: PDF, ePub, Docs
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The main goal of this book is to form a high-quality platform in which well-known and emerging pioneering basic, translational and clinical scientists can present their latest, exciting findings in the studies of redox signaling in the pulmonary vasculature. Content from outstanding investigators with unique expertise and skills of molecular and cell biology, biochemistry, physiology, pharmacology, biophysics, biotechnology and medicine will update our current out-of-date concepts with new knowledge. Rapidly increasing scientific studies have gathered a large volume of novel and important information on redox signaling in healthy and diseased pulmonary vasculature. This volume covers the need for a cohesive book to display state-of-the-art advances in the field. The second major aim of this book is to help direct future research. Redox signaling is a major molecular process involved in almost every physiologic cellular response in the pulmonary vasculature including energy metabolism, host defense, gene expression, contraction, proliferation, and migration. Aberrancy in this important signaling pathway leads to a critical role in the development of nearly all pulmonary diseases, such as pulmonary hypertension, cor pulmonale, pulmonary edema, and vasculitis, among others.

Signal Transduction by Reactive Oxygen and Nitrogen Species Pathways and Chemical Principles

Author: H.J. Forman
Publisher: Springer Science & Business
ISBN: 0306484129
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Henry Jay Forman, Jon Fukuto and Martine Torres "Research is to see what everybody else has seen and to think what nobody else has thought. " -- Albert Szent-Gyorgyi Several years ago, one of us put together a book that dealt with various aspects of oxidative stress and introduced the concept of signal transduction by oxidants. Since then, the interest in the mechanisms by which reactive oxygen and nitrogen species (ROS/RNS) can modulate the cell’s response has tremendously grown, paralleling the intense efforts towards identifying new signaling pathways in which phosphorylation/dephosphorylation events take center stage. Evidence is now mounting that production of these species by the cells is required for their function from growth to apoptosis and numerous signaling pathways have been identified where the participation of ROS and RNS is apparent (see Chapters 11-14, 16 and 18). Thus, the field is no more limited to the group of free radical aficionados who have pioneered this area of research but has now gone mainstream. While it is satisfactory for those of us who have been working on this topic for a long time, it has the risk of becoming the “fashionable” motto where those molecules, still mysterious to some, become responsible for everything and anything.

Reactive Oxygen and Nitrogen Species Signaling and Communication in Plants

Author: Kapuganti Jagadis Gupta
Publisher: Springer
ISBN: 3319100793
Format: PDF, ePub, Mobi
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This book reviews the current state of information on reactive oxygen and nitrogen species and their role in cell communication during plant growth, development and adaptation to stress conditions. It addresses current research advances made in the area of reactive oxygen and nitrogen species (ROS and RNS) signaling. These free radical molecules are important in plant-microbe interactions, responses to abiotic stress, stomatal regulation and a range of developmental processes. Due to their short half-life, high diffusion capability and ability to react with different components in the cell, ROS and RNS participate in various processes connected with signaling and communication in plants. The book’s respective chapters address the latest advances made in the niche area of ROS and RNS in plants. It offers a valuable guide for researchers and students alike, providing insights into cutting-edge free radical research. The information on specialized topics presented is also highly relevant for applied fields such as food security, agricultural practices and medicinal use of plants.

Oxygen Nitrogen Radicals and Cellular Injury

Author: Kenneth B. Adler
Publisher: DIANE Publishing
ISBN: 0788185381
Format: PDF, Docs
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Papers: characterization of inducible nitric oxide synthase expression in human airway epithelium; nitric oxide and its congeners in mitochondria; role of nitric oxide in inflammation and tissue injury during endotoxemia and hemorrhagic shock; nitric oxide and peroxynitrite production in ocular inflammation; 5 papers on pulmonary/pollutant effects; 6 papers on oxidants and signal transduction, including impact of oxidative stress on signal transduction control by phosphotyrosine phosphatases; the nature of antioxidant defense mechanisms; lipid peroxidation products and antioxidants in human disease; and lung injury and oxidoreductases.

Toxicology of the Human Environment

Author: Chris J Rhodes
Publisher: CRC Press
ISBN: 9780748409167
Format: PDF, Mobi
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The environment in which human beings live is complex and we may encounter many different potentially toxic chemical substances during the course of our lives. These xenobiotic agents may invade the living system in the form of environmental pollutants, in the diet, as pharmaceutically administered compounds or even as chemical weapons and it is becoming widely recognised that free radicals are often involved in this toxicity. The book covers all aspects of toxic agents in the environment from their detection to their effects. Final year undergraduates and postgraduates studying toxicology, biochemistry, cell biology or environmental science will find this book valuable reading, whilst researchers in academia, the pharmaceutical industry, and public health laboratories will appreciate it as a comprehensive reference.

Oxygen Nitrogen Radicals Cell Injury and Disease

Author: Val Vallyathan
Publisher: Springer Science & Business Media
ISBN: 1461510872
Format: PDF, ePub, Docs
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A veritable mountain of literature has been published showing the causal relationship of reactive oxygen/nitrogen species in human disease conditions, and there has been an explosion in the understanding of oxidative stress, the protective role of antioxidants and molecular events involved in the regulation of transcription, editing, and translation of key events leading to disease processes. Strategies need to be developed for prevention of diseases by allowing scientists and clinicians to obtain information on new and emerging advances. The molecular mechanisms involved in several diseases including Alzheimer's disease, atherosclerosis, diabetes, arthritis, and Parkinson's disease, as well as disorders of the eye, skin, cardiac, and pulmonary systems are discussed in this volume, along with scientific evidence supporting the value of dietary supplementation with antioxidants in the prevention of cellular damage leading to chronic disease. Special in vivo techniques are also discussed at length, along with the role of molecular studies in human risk assessment.

Pathy s Principles and Practice of Geriatric Medicine

Author: Alan J. Sinclair
Publisher: John Wiley & Sons
ISBN: 1119954142
Format: PDF, Kindle
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Now in its fifth edition, this comprehensive textbook of geriatric medical practice provides up-to-date, evidence-based, and practical information about all the major medical problems of aging citizens. Containing 41 new chapters covering new infections, treatments, approaches to care, and end of life care, Pathy’s Principles and Practice of Geriatric Medicine includes expanded sections on acute stroke, dementia, cardiovascular disease and health, respiratory diseases, and training. To capture an international perspective this new text has contributions from a global editorial team.

Oxidative Stress Mechanisms and their Modulation

Author: Mohinder Bansal
Publisher: Springer
ISBN: 8132220323
Format: PDF, Kindle
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Research over the years has demonstrated that free radicals mediated oxidative stress lies at the helm of almost all patho-physiological phenomena. These findings emphasize on the need to understand the underlying molecular mechanism(s) and their critical role in the pathogenesis. This book aims to focus on these areas to provide readers a comprehensive outlook about the major redox sensitive pathways and networks involved in various disease conditions. In the first chapter of the book, basic information about the oxidative stress, its generation, its biomarkers and its role in body are discussed. In the next three chapters, the role of oxidative stress in various pathologies ranging from neurological disorders, to cardiovascular diseases, cancers, metabolic diseases and ageing have been described. Chapter 5 cumulatively describes the most important molecular signaling pathways that are affected by reactive oxygen species (ROS). These are the mechanisms which are common denominators in various pathological states. In the next part of the book, various antioxidant strategies to target and mitigate ROS have been discussed with details on the mechanisms. Selenium, being the research focus and interest of the authors for years, the role of selenium as an antioxidant as part of selenoproteins has been included in the book. Finally, the book culminates with authors’ perspective on the future of the redox biology field. Throughout the book, efforts have been made to use simplified language and suitable figures for ease to understand the contents. Although the authors have tried to touch on all the different aspects of oxidative stress in detail, the fact that it is a continuously growing field with updates coming every day, there might be some areas which might not be described in depth. This book is designed for students, young scientists to get acquainted with the redox biology. Overall, this book is a reference to understand the redox regulation of cellular signaling pathways involved in pathogenesis.