Physiological and Pathological Role of ROS: Benefits and Limitations of Antioxidant Treatment PDF Download
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Author: Sergio Di Meo
Publisher: MDPI
ISBN: 3039362828
Category : Science
Languages : en
Pages : 236
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Book Description
ROS were long considered one of the key players in tissue injury. Indeed, overproduction of ROS results in oxidative stress, a process leading to the development of many pathological conditions. For the treatment of these conditions, the use of antioxidants was proposed. Over time, it was shown that ROS at low concentrations act as signaling molecules, leading to the regulation of physiological functions. Moreover, several interventions that increase ROS generation activate stress-adaptive responses that extend the lifespan. It was also shown that excessive use of antioxidants can counter the beneficial effects of ROS. Currently, much progress has been made in understanding the role of ROS in human diseases and aging, as well as in the regulation of physiological functions, and in identifying the signaling pathways involved in ROS. However, much remains to be understood about the mutual interactions among signaling pathways underlying organisms’ adaptive responses, their modifications (which occur during aging), and some disease states. The aim of this Special Issue is to underline the effects of ROS production and antioxidant treatment in living organisms, focusing on their impact on health, disease, and aging.
Author: Sergio Di Meo
Publisher: MDPI
ISBN: 3039362828
Category : Science
Languages : en
Pages : 236
Get Book Here
Book Description
ROS were long considered one of the key players in tissue injury. Indeed, overproduction of ROS results in oxidative stress, a process leading to the development of many pathological conditions. For the treatment of these conditions, the use of antioxidants was proposed. Over time, it was shown that ROS at low concentrations act as signaling molecules, leading to the regulation of physiological functions. Moreover, several interventions that increase ROS generation activate stress-adaptive responses that extend the lifespan. It was also shown that excessive use of antioxidants can counter the beneficial effects of ROS. Currently, much progress has been made in understanding the role of ROS in human diseases and aging, as well as in the regulation of physiological functions, and in identifying the signaling pathways involved in ROS. However, much remains to be understood about the mutual interactions among signaling pathways underlying organisms’ adaptive responses, their modifications (which occur during aging), and some disease states. The aim of this Special Issue is to underline the effects of ROS production and antioxidant treatment in living organisms, focusing on their impact on health, disease, and aging.
Author: Filip Cristiana
Publisher: BoD – Books on Demand
ISBN: 1789231345
Category : Science
Languages : en
Pages : 218
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Book Description
Oxygen represents only 20% of the Earth's atmosphere, yet it is vital for the survival of aerobic organisms. There is a dark part of the use of oxygen that consists in generating reactive species that are potentially harmful to living organisms. Moreover, reactive oxygen species can combine with nitrogen derivatives and generate many other reactive species. Thus, living organisms are continuously assaulted by reactive species from external or internal sources. However, the real danger comes in the case of high concentrations and prolonged exposure to these species. This book presents an image of the mechanisms of action of reactive species and emphasizes their involvement in diseases. Inflammation and cancer are examined to determine when and how reactive species turn the evolution of a benign process to a malignant one. Some answers may come from recent studies indicating that reactive species are responsible for epigenetic changes.
Author: Ismail Laher
Publisher: Springer
ISBN: 9783642300172
Category : Medical
Languages : en
Pages : 0
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Book Description
The focus of this collection of illustrated reviews is to discuss the systems biology of free radicals and anti-oxidants. Free radical induced cellular damage in a variety of tissues and organs is reviewed, with detailed discussion of molecular and cellular mechanisms. The collection is aimed at those new to the field, as well as clinicians and scientists with long standing interests in free radical biology. A feature of this collection is that the material also brings insights into various diseases where free radicals are thought to play a role. There is extensive discussion of the success and limitations of the use of antioxidants in several clinical settings.
Author: Jalal Pourahmad
Publisher: Academic Press
ISBN: 0128224096
Category : Science
Languages : en
Pages : 318
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Book Description
Mitochondrial Metabolism: An Approach for Disease Management covers mitotherapy from three combined perspectives, Pharmacology, Toxicology and Biochemistry. After an introduction from world-renowned experts, the book's chapters cover the balancing role in reduction/oxidation mitochondria play, mitochondria as targets for therapeutics through its metabolism, mitochondrial contributions to the cell death process, mitochondrial response to environmental toxicants, the mitochondrial role in aging, the impact of calorie restrictive diets, new advances in the identification of altered mitochondria associated signaling pathways in carcinogenesis, and much more. This book provides bioscientists new horizons to realize the importance of mitochondria in present-day research on therapies dealing with mitochondria associated chronic diseases, including diabetes, cancer and neurodegenerative disorders. - Details the significant role of mitochondria in chronic diseases - Presents new insights on the targeting of mitochondria for therapeutic purposes - Includes updated results on mitotherapy and other mitochondria-oriented therapies
Author: Loutfy H. Madkour
Publisher: Academic Press
ISBN: 0128224967
Category : Medical
Languages : en
Pages : 782
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Book Description
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
Author: Julianna Cseri
Publisher: BoD – Books on Demand
ISBN: 1838807241
Category : Medical
Languages : en
Pages : 190
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Book Description
A healthy skeletal musculature is necessary for a good quality of life and is important in sports. The loss of skeletal muscle mass leads to severe clinical complications and alters daily functioning. The aim of this book is to give an overview of skeletal muscle atrophy including pathomechanism, clinical characters, and the tools for prevention and treatment. Skeletal muscle atrophy can develop due to neurogenic or myogenic reasons, and frequently appears as an age-dependent disorder (sarcopenia). The studies of theoretical background give promising perspectives to prevent and treat muscle atrophy. The book is recommended to scientists, practitioners, students, sportsmen, and everybody who is interested in the normal and impaired function of the skeletal muscle.
Author: Mallappa Kumara Swamy
Publisher: Springer Nature
ISBN: 9811517614
Category : Science
Languages : en
Pages : 619
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Book Description
Plants produce a vast number of bioactive compounds with different chemical scaffolds, which modulate a diverse range of molecular targets and are used as drugs for treating numerous diseases. Most present-day medicines are derived either from plant compounds or their derivatives, and plant compounds continue to offer limitless reserves for the discovery of new medicines. While different classes of plant compounds, like phenolics, flavonoids, saponins and alkaloids, and their potential pharmacological applications are currently being explored, their curative mechanisms are yet to be understood in detail. This book is divided into 2 volumes and offers detailed information on plant-derived bioactive compounds, including recent research findings. Volume 1, Plant-derived Bioactives: Chemistry and Mode of Action, discusses the chemistry of highly valued plant bioactive compounds and their mode of actions at the molecular level. Volume 2, Plant-derived Bioactives: Production, Properties and Therapeutic Applications, explores the sources, biosynthesis, production, biological properties and therapeutic applications of plant bioactives. Given their scope, these books are valuable resources for members of the scientific community wishing to further explore various medicinal plants and the therapeutic applications of their bioactive compounds. They appeal to scholars, teachers and scientists involved in plant product research, and facilitate the development of innovative new drugs.
Author: Célia Cabral
Publisher: Frontiers Media SA
ISBN: 283254987X
Category : Science
Languages : en
Pages : 161
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Book Description
Gliomas are neoplasms originating in glial cells, the most malignant and frequent primary tumors of the Central Nervous System (CNS), representing approximately 40-50% of all intracranial tumors. Following the World Health Organization (WHO) guidelines, gliomas are classified into grades I-IV, regarding their malignancy degree. The latest report from WHO on CNS tumors considers that glioblastoma (GB), a grade IV adult-type diffuse glioma comprising isocitrate dehydrogenase (IDH)-wildtype tumors. Despite all efforts to improve patient survival and quality of life, the median survival remains lower due to the lack of effective diagnostic tools, poor prognosis, and limited therapeutic options. Regarding this, the design of novel treatment strategies is of the utmost importance. This can be by either the discovery of new medicines (for example synthetic compounds), repurposing known drugs or exploring novel strategies of drug delivery by nanotechnological platforms to improve treatment response and long-term survival of patients. Inter and intra-tumor heterogeneity mainly contribute to the poor prognosis and treatment efficacy. Therefore, exploiting tumor microenvironment (TME) and understanding GB’s cellular and molecular aspects are fundamental to developing more effective and better-tolerated personalized therapies. Thus, addressing physiological mechanisms involved in cancer development, progression and recurrence is crucial. Concerning this, our goal with this research topic is to share the latest advances in tumor-specific therapies for gliomas, especially GB, as well as to provide experimental validation of new bioactive molecules and their antitumor mechanism of action. Authors are invited to submit original research, review articles and systematic reviews covering, but not restricted to, the following topics: 1) Novel targeted therapies; 2) Mechanism of action and affected signaling pathways; 3) Repurposing drugs; 5) New chemical entities; 6) Pharmaceutical nanotechnology; 7) Drug delivery systems; 8) Preclinical and clinical studies of therapeutic molecules; 9) Potential molecular biomarkers to targeted therapies using proteomics or transcriptomics.
Author: Lori M. Buhlman
Publisher: Springer
ISBN: 3319421395
Category : Medical
Languages : en
Pages : 279
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Book Description
This volume brings together various theories of how aberrations in mitochondrial function and morphology contribute to neurodegeneration in idiopathic and familial forms of Parkinson’s disease. Moreover, it comprehensively reviews the current search for therapies, and proposes how molecules are involved in specific functions as attractive therapeutic targets. It is expected to facilitate critical thought and discussion about the fundamental aspects of neurodegeneration in Parkinson’s disease and foster the development of therapeutic strategies among researchers and graduate students. Theories of idiopathic Parkinson’s etiology support roles for chronic inflammation and exposure to heavy metals or pesticides. Interestingly, as this project proposes, a case can be made that abnormalities in mitochondrial morphology and function are at the core of each of these theories. In fact, the most common approach to the generation of animal and cell-culture models of idiopathic Parkinson’s disease involves exposure to mitochondrial toxins. Even more compelling is the fact that most familial patients harbor genetic mutations that cause disruptions in normal mitochondrial morphology and function. While there remains to be no effective treatment for Parkinson’s disease, efforts to postpone, prevent and “cure” onset mitochondrial aberrations and neurodegeneration associated with Parkinson’s disease in various models are encouraging. While only about ten percent of Parkinson’s patients inherit disease-causing mutations, discovering common mechanisms by which familial forms of Parkinson’s disease manifest will likely shed light on the pathophysiology of the more common idiopathic form and provide insight to the general process of neurodegeneration, thus revealing therapeutic targets that will become more and more accessible as technology improves.
Author: Neven Zarkovic
Publisher: Mdpi AG
ISBN: 9783039287826
Category : Medical
Languages : en
Pages : 230
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Book Description
Our common knowledge on oxidative stress has evolved substantially over the years and has been mostly focused on the fundamental chemical reactions and the most relevant chemical species involved in the human pathophysiology of oxidative stress-associated diseases. Thus, reactive oxygen species and reactive nitrogen species (ROS and RNS) were identified as the key players initiating, mediating, and regulating the cellular and biochemical complexity of oxidative stress either as physiological (acting pro-hormetic) or as pathogenic (causing destructive vicious circle) process. The papers published in this particular Special Issue of the Cells demonstrate the impressive pathophysiological relevance of ROS and RNS in a range of contexts, including the relevance of second messengers of free radicals like 4-hydroxynonenal, allowing us to assume that even more detailed mechanisms of their positive and negative effects lie in wait, and should assist in better monitoring of the major modern diseases and the development of advanced integrative biomedicine treatments.
