Activation and Detoxification Enzymes

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Publisher : Springer Nature
ISBN 13 : 3031552873
Total Pages : 257 pages
Book Rating : 4.78/5 ( download)

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Book Synopsis Activation and Detoxification Enzymes by : Chang-Hwei Chen

Download or read book Activation and Detoxification Enzymes written by Chang-Hwei Chen and published by Springer Nature. This book was released on with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Activation and Detoxification Enzymes

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461410495
Total Pages : 185 pages
Book Rating : 4.92/5 ( download)

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Book Synopsis Activation and Detoxification Enzymes by : Chang-Hwei Chen

Download or read book Activation and Detoxification Enzymes written by Chang-Hwei Chen and published by Springer Science & Business Media. This book was released on 2011-11-16 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humans are exposed to foreign compounds such as drugs, household products and environmental chemicals by swallowing or breathing. Also, food is considered a foreign compound. Such foreign compounds can be non-essential and non-functional to life, and commonly are referred to as xenobiotics. Some xenobiotics are not toxic; however, many of them are potentially toxic or become toxic after conversion to metabolic intermediates. A considerable number of foreign compounds belong to non-polar, lipophilic substances. Lipophilic compounds are not soluble in water. Metabolic conversion of lipophilic foreign compounds to facilitate their removal from the body is essentially carried out by biochemical reactions catalyzed by two classes of metabolizing enzymes, namely, activation enzymes and detoxification enzymes. Activation enzyme-catalyzed functionalization reaction introduces a functional group to a lipophilic compound. Functionalization modifies many foreign compounds to form reactive intermediates capable of interacting with cellular components (proteins, DNA and lipids), leading to a variety of conditions for diseases. Functionalized compounds are further metabolized through detoxification enzyme-catalyzed reactions, which result in an increase in the solubility of parent compounds and an inactivation of metabolic intermediates, thus facilitating their excretion from the body. To minimize the exposure of potentially toxic metabolic intermediates, it is essential to keep them at a minimum level. Extensive investigations have revealed that foreign compound-metabolizing enzymes exhibit genetic polymorphisms. Variations in their activities can produce different results as to the susceptibility to potential toxic effects. Moreover, the expressions of activation enzymes and detoxification enzymes are inducible. A number of chemical compounds are capable of acting as modulators for these two classes of enzymes. These findings have lead to the proposal of modulating metabolizing enzymes as a useful approach for human health benefits. Importantly, many of these chemical compounds are present in human daily diets. There are many advances that have been made in the past decades towards the understanding of functions and implications of activation enzymes and detoxification enzymes. An organized, concise overview is needed for the readers who are initially exposed to this important subject, particularly for students and researchers in the areas of biomedical sciences, biochemistry, nutrition, pharmacology and chemistry. This book is intended to serve this purpose as an introduction to the subject. Furthermore, major topics in the book, excluding catalytic reactions and structural properties, may have interest to other readers who have knowledge of basic sciences and understanding enzyme related information. The book discusses subjects associated with foreign compound metabolizing enzymes with emphasis on biochemical aspects, including lipophilic foreign compounds, catalytic properties, reactive intermediates, biomedical and biochemical effects, genetic polymorphisms, enzyme inducibility, enzyme modulation for health benefits, dietary related enzyme modulators, and structural characteristics of enzyme inducers.

Xenobiotic Metabolic Enzymes: Bioactivation and Antioxidant Defense

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Publisher : Springer Nature
ISBN 13 : 3030416798
Total Pages : 256 pages
Book Rating : 4.99/5 ( download)

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Book Synopsis Xenobiotic Metabolic Enzymes: Bioactivation and Antioxidant Defense by : Chang-Hwei Chen

Download or read book Xenobiotic Metabolic Enzymes: Bioactivation and Antioxidant Defense written by Chang-Hwei Chen and published by Springer Nature. This book was released on 2020-04-03 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive, organized, and concise overview of xenobiotic metabolic enzymes and their health implications. The subjects addressed are broad in scope with an emphasis on recent advances in research on biochemical and biomedical aspects of these enzymes. The xenobiotics discussed include not just drugs, but also food, smoke, and other environmental chemicals. The subjects covered in this work include: metabolic enzymes and their catalyzed reactions, reactive intermediates generated from metabolic activation, oxidative stress mediated by electrophilic reactive intermediates, bioactivation - mediated cellular and functional damages, activation of Nrf2 – ARE pathway, genetic variations affecting metabolic enzyme expression, enzyme polymorphisms affecting xenobiotic - mediated toxicity, induction of metabolic enzymes for health benefits, and a diversity of metabolic enzyme modulators.

Encyclopedia of Cancer

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Publisher : Springer Science & Business Media
ISBN 13 : 3540368477
Total Pages : 3307 pages
Book Rating : 4.72/5 ( download)

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Book Synopsis Encyclopedia of Cancer by : Manfred Schwab

Download or read book Encyclopedia of Cancer written by Manfred Schwab and published by Springer Science & Business Media. This book was released on 2008-09-23 with total page 3307 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive encyclopedic reference provides rapid access to focused information on topics of cancer research for clinicians, research scientists and advanced students. Given the overwhelming success of the first edition, which appeared in 2001, and fast development in the different fields of cancer research, it has been decided to publish a second fully revised and expanded edition. With an A-Z format of over 7,000 entries, more than 1,000 contributing authors provide a complete reference to cancer. The merging of different basic and clinical scientific disciplines towards the common goal of fighting cancer makes such a comprehensive reference source all the more timely.

Transporters and Drug-Metabolizing Enzymes in Drug Toxicity

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Publisher : John Wiley & Sons
ISBN 13 : 1119170842
Total Pages : 530 pages
Book Rating : 4.46/5 ( download)

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Book Synopsis Transporters and Drug-Metabolizing Enzymes in Drug Toxicity by : Albert P. Li

Download or read book Transporters and Drug-Metabolizing Enzymes in Drug Toxicity written by Albert P. Li and published by John Wiley & Sons. This book was released on 2021-07-27 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRANSPORTERS AND DRUG-METABOLIZING ENZYMES IN DRUG TOXICITY Explore up-to-date coverage on the interaction between drug metabolism enzymes, transporters, and drug toxicity with this leading resources Transporters and Drug-Metabolizing Enzymes in Drug Toxicity delivers a comprehensive and updated review of the relationship between drug metabolism, transporters, and toxicity, providing insights into a major challenge in drug development – accurate assessment of human drug toxicity. Combining two disciplines frequently considered independently of one another, the book combines drug metabolism and toxicology with a focus on the role of biotransformation on drug toxicity and as a major factor for species and individual differences. Mechanism and species differences in drug metabolizing enzymes and transporters are discussed, as are the methods used to investigate the role of drug metabolizing enzymes and transporters in drug toxicity. Finally, the distinguished authors describe promising new experimental approaches to accurately assessing human drug toxicity via the consideration of human-specific drug metabolism in toxicity assays. In addition to topics as diverse as extended clearance models, experimental approaches for the estimation of DILI potential of drug candidates and roles of transporters in renal drug toxicity, readers will also enjoy the inclusion of such subjects as: A thorough overview of and introduction to drug metabolism and transporters and drug toxicity An exploration of drug metabolism enzymes and transporter activities as risk factors of marketed drugs associated with drug-induced fatalities A discussion of human-based in vitro experimental models for the evaluation of metabolism-dependent drug toxicity A treatment of mechanism-based experimental models for the evaluation of BSEP inhibition and DILI An examination of transporters and cochlea toxicity Perfect for scientists, students, and practitioners with interests in metabolism, toxicology, and drug development in the pharmaceutical industry, Transporters and Drug-Metabolizing Enzymes in Drug Toxicity will also earn a place in the libraries of medicinal chemists, pharmacologists, biochemists, toxicologists, and regulators in the pharmaceutical and health industries.

Handbook of Toxicologic Pathology

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Publisher : San Diego : Academic Press
ISBN 13 :
Total Pages : 1012 pages
Book Rating : 4.89/5 ( download)

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Book Synopsis Handbook of Toxicologic Pathology by : Wanda M. Haschek

Download or read book Handbook of Toxicologic Pathology written by Wanda M. Haschek and published by San Diego : Academic Press. This book was released on 2002 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt: In volume I, the book covers toxicologic pathology in its basic aspects, including its definition, the basic biochemical and morphologic mechanisms underlying the discipline, the basic practice of toxicologic pathology (including special techniques) and issues essential to the understanding of toxicologic pathology such as risk assessment, experimental design, and statistical analysis. Next, the book moves to specific issues affecting the "practice" toxicologic pathology, including issues such as knowledge management, regulatory affairs and writing pathology reports. Finally, Volume I closes with several chapters that deal with specific classes of environmental toxicants such as endocrine disruptors and heavy metals. Volume II addresses the toxicologic pathology in a thoroughly standardized systems manner, addressing the basic structure and function of a particular organ system, its response to toxic injury, mechanisms of injury and methods of evaluation of such injury.-

Illustrated Toxicology

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Publisher : Academic Press
ISBN 13 : 0128132140
Total Pages : 630 pages
Book Rating : 4.42/5 ( download)

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Book Synopsis Illustrated Toxicology by : PK Gupta

Download or read book Illustrated Toxicology written by PK Gupta and published by Academic Press. This book was released on 2018-04-04 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Illustrated Toxicology: With Study Questions is an essential, practical resource for self-study and guidance catering to a broad spectrum of students. This book covers a range of core toxicological areas, including pesticides, radioactive materials and poisonous plants, also presenting a section on veterinary toxicology. Across 16 chapters, the book presents key concepts with the aid of over 250 detailed, full-color illustrations. Each section is supplemented with practical exercises to support active learning. This combination of clear illustrations and sample testing will help readers gain a deeper understanding of toxicology. This book is useful for toxicology, pharmacy, medical and veterinary students, and also serves as a refresher for academics and professionals in the field, including clinical pharmacists, forensic toxicologists, environmentalists and veterinarians. Includes comprehensive coverage of key toxicological concepts for study and revision Provides a visual learning aid with over 250 full-color illustrations Enhances understanding and memory retention of core concepts with the use of practical exercises

Biological Reactive Intermediates III

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Publisher : Springer Science & Business Media
ISBN 13 : 1468451340
Total Pages : 1028 pages
Book Rating : 4.44/5 ( download)

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Book Synopsis Biological Reactive Intermediates III by : James J. Kocsis

Download or read book Biological Reactive Intermediates III written by James J. Kocsis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the third in a series of conferences entitled, The International Symposium on Biological Reactive Intermediates. The first was held at the University of Turku in Finland, in 1975, the second at the University of Surrey in the United Kingdom, in 1980 and the most recent at the University of Maryland in the United States, in 1985. The significance of these conferences has been emphasized by the rapid growth of mechanistic toxicology over the last decade. These conferences were initially stimulated by the attempt to uncover the significance behind the observations that the toxicity of carcinogenic responses produced by many chemicals was associated with the observation that their metabolism led to the formation of chemcially reactive electrophiles which covalently bound to nucleophilic sites in cells such as proteins, nucleic acid or fats. Recently, newer concepts have arisen which have necessitated the expansion of subjects covered by the conference. For example, the application of newer knowledge of the role of active oxygen species in reactive metabolite formation, the concept of suicide substrates, examination of the function of glutathione in cells, application of immunological techniques and molecular biological probes to the solution of toxicological problems all had an impact on the study of the biological reactive intermediates.

Dioxygen-dependent Heme Enzymes

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Publisher : Royal Society of Chemistry
ISBN 13 : 1782629912
Total Pages : 376 pages
Book Rating : 4.17/5 ( download)

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Book Synopsis Dioxygen-dependent Heme Enzymes by : Masao Ikeda-Saito

Download or read book Dioxygen-dependent Heme Enzymes written by Masao Ikeda-Saito and published by Royal Society of Chemistry. This book was released on 2018-10-01 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the many and varied catalytic activities of O2-dependent heme-iron enzymes, including monoxygenases and cytochrome P450, dioxygenases, oxidases and model heme systems required for postgraduate students and researchers in biochemistry and metallobiology.

Encyclopedia of Entomology

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Publisher : Springer Science & Business Media
ISBN 13 :
Total Pages : 1062 pages
Book Rating : 4.8L/5 ( download)

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Book Synopsis Encyclopedia of Entomology by : John L. Capinera

Download or read book Encyclopedia of Entomology written by John L. Capinera and published by Springer Science & Business Media. This book was released on 2008-08-11 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together the expertise of over 450 distinguished entomologists from 40 countries, this exhaustive work provides a global overview of insects and their close relatives. It is designed as an introduction to this fascinating group of animals.