Metabolism Of Drugs And Other Xenobiotics

A practice-oriented desktop reference for medical professionals, toxicologists and pharmaceutical researchers, this handbook provides systematic coverage of the metabolic pathways of all major classes of xenobiotics in the human body. The first part comprehensively reviews the main enzyme systems involved in biotransformation and how they are orchestrated in the body, while parts two to four cover the three main classes of xenobiotics: drugs, natural products, environmental pollutants. The part on drugs includes more than 300 substances from five major therapeutic groups (central nervous system, cardiovascular system, cancer, infection, and pain) as well as most drugs of abuse including nicotine, alcohol and "designer" drugs. Selected, well-documented case studies from the most important xenobiotics classes illustrate general principles of metabolism, making this equally useful for teaching courses on pharmacology, drug metabolism or molecular toxicology. Of particular interest, and unique to this volume is the inclusion of a wide range of additional xenobiotic compounds, including food supplements, herbal preparations, and agrochemicals.

A practice-oriented desktop reference for medical professionals, toxicologists and pharmaceutical researchers, this handbook provides systematic coverage of the metabolic pathways of all major classes of xenobiotics in the human body. The first part comprehensively reviews the main enzyme systems involved in biotransformation and how they are orchestrated in the body, while parts two to four cover the three main classes of xenobiotics: drugs, natural products, environmental pollutants. The part on drugs includes more than 300 substances from five major therapeutic groups (central nervous system, cardiovascular system, cancer, infection, and pain) as well as most drugs of abuse including nicotine, alcohol and "designer" drugs. Selected, well-documented case studies from the most important xenobiotics classes illustrate general principles of metabolism, making this equally useful for teaching courses on pharmacology, drug metabolism or molecular toxicology. Of particular interest, and unique to this volume is the inclusion of a wide range of additional xenobiotic compounds, including food supplements, herbal preparations, and agrochemicals.

This definitive reference work describes in detail the enzyme systems that participate in the metabolism of xenobiotics, particularly medicinal drugs. Each chapter focuses on a specific enzyme system, emphasising its role in the activation and detoxication of chemicals. Aspects discussed critically include: * enzyme function in the metabolism and bioactivation of xenobiotics * substrate specificity * tissue distribution * species distribution (to include laboratory animals and humans) * hormonal regulation * sex differences * modulation by prior exposure to other chemicals * age-dependent expression * pharmacogenetics and modulation by disease. Enzyme Systems that Metabolise Drugs and Other Xenobiotics will be essential reading for industrial research scientists working in the fine chemicals and pharmaceutical industries, especially those concerned with the safety evaluation of chemicals, and investigating their metabolism, pharmacokinetic characteristics and toxicological properties. The nature and scope of the book will also make it attractive to the research toxicologist and to postgraduate students studying toxicology, as well as to clinicians and pharmacists.

With contributions by a team of internationally respected scientists, this book provides up-to-date information on the extensively studied cytochrome P450 enzyme in a very accessible manner.

Drug Metabolism in Diseases is a comprehensive reference devoted to the current state of research on the impact of various disease states on drug metabolism. The book contains valuable insights into mechanistic effects and examples of how to accurately predict drug metabolism during these different pathophysiological states. Each chapter clearly presents the effects of changes in drug metabolism and drug transporters on pharmacokinetics and disposition. This is a unique and useful approach for all those involved in drug discovery and development, and for clinicians and researchers in drug metabolism, pharmacology, and clinical pharmacology. Written and edited by leaders in drug metabolism from academia and industry Covers important topics, such as pharmacogenomics, drug metabolism in transplant patients, xenobiotic receptors, drug metabolism in geriatric and pediatric populations, and more Highlights topics of importance in drug discovery and development, and for safe and effective drug use in the clinic

Surpassing the 1976 book by Testa and Jenner, Drug Metabolism: Chemical and Biochemical Aspects (Dekker), this informative, up-to-date text includes the following features, unavailable elsewhere: First in a set of books to provide a comprehensive coverage of drug metabolism; Opening chapter provides a general introduction to the complete set of books; Other chapters cover reaction mechanisms, catalytic cycles, regio- and stereoselectivities, types of substrates, reactivity of intermediates, and drug-enzyme interactions; Extensive detailed diagrams of reaction pathways and chemical structures * First in a set of books providing a comprehensive coverage of drug metabolism * Opening chapter provides a general introduction to the complete set of books * Other chapters cover reaction mechanisms, catalytic cycles, regio and stereoselectivities, types of substrates, reactivity of intermediates and drug-enzyme interactions * Extensive detailed diagrams of reaction pathways and chemical structures

Many drugs and other xenobiotics (e.g., preservatives, insecticides, and plastifiers) contain hydrolyzable moieties such as ester or amide groups. In biological media, such foreign compounds are, therefore, important substrates for hydrolytic reactions catalyzed by hydrolases or proceeding non-enzymatically. Despite their significance, until now, no book has been dedicated to hydrolysis and hydrolases in the metabolism of drugs and other xenobiotics. This work fills a gap in the literature and reviews metabolic reactions of hydrolysis and hydarion from the point of views of enzymes, substrates, and reactions.