Metabolism Of Inorganic Arsenic In Relation To Chemical Form And Animal Species

Role of the Gut Flora in Toxicity and Cancer examines the relationship between the gut microflora and its host. The aim is to provide a comprehensive view of the contribution of the gut flora to foreign compound metabolism in man and laboratory animals. The object has been to relate this bacterial metabolism to toxic events occurring in mammals and to consider the interrelationships of bacterial and mammalian metabolic pathways. The early chapters are set the scene and provide a background to the sections on metabolism of specific groups of compounds which follow. Subsequent chapters encompass the bacterial metabolism of both xenobiotics and food components, and concentrate on those reactions which have actual or potential toxicological and/or clinical importance. The concluding chapters provide assessments of the role of the gut flora in the etiology of cancer, in particular from the point of view of the formation of carcinogens, mutagens, and promotors within the large bowel.

An examination of the composition and metabolic activity of microorganisms commonly found in the human gut. Chapters cover the effects gut flora have on ingested compounds, vitamin production and gastrointestinal disorders. Comparisons are also made between microbial and mammalian metabolism.

During the past few years, major scientific discoveries have greatly contributed to our understanding of the relationship between metals and genetics. The fields which have contrib uted to this area range from Clinical Medicine and Genetics to Biochemistry and Chemistry. The aim of this book is to bring together investigators from these diverse fields to reflect on the broad implications of direct and indirect interactions of metals and genetic components. The volume begins with a tribute to the late Karen Wetterhahn, an outstanding scien tist in the field, who will be sadly missed by her friends and colleagues because of her un timely death. The book has 28 chapters contributed by scientists who are internationally known for their expertise and outstanding research. The subject matters are divided into five major sections. The first section discusses genetic response to environmental expo sure to metals. Potentially devastating health crises have been reported in recent years from several parts of the world, which stem from environmental exposure to metals. In this section, authors report their findings on the effects and influence of metals in gene ex pression and their consequences to human health. The section on metal carcinogenesis and metal caused DNA damage, presents the latest advances in our knowledge of the molecu lar mechanisms of metal-induced mutagenesis and carcinogenesis. This topic is at the very heart of our understanding of how cancer may be caused by various metals.

This groundbreaking book covers every aspect of deadly toxic chemicals used as weapons of mass destruction and employed in conflicts, warfare and terrorism. Including findings from experimental as well as clinical studies, this one-of-a-kind handbook is prepared in a very user- friendly format that can easily be followed by students, teachers and researchers, as well as lay people. Stand-alone chapters on individual chemicals and major topics allow the reader to easily access required information without searching through the entire book.This is the first book that offers in-depth coverage of individual toxicants, target organ toxicity, major incidents, toxic effects in humans, animals and wildlife, biosensors, biomarkers, on-site and laboratory analytical methods, decontamination and detoxification procedures, prophylactic, therapeutic and countermeasures, and the role of homeland security. Presents a comprehensive look at all aspects of chemical warfare toxicology in one reference work. This saves researchers time in quickly accessing the very latest definitive details on toxicity of specific agents used in chemical warfare as opposed to searching through thousands of journal articles. Will include the most agent-specific information on the market Includes detailed coverage of the most exhaustive list of agents possibly used as chemical warfare agents in one source. Section 4: Agents That Can Be Used as Weapons of Mass Destruction ? 25 chapters long. Other books on the market only include a sample selection of specific agents. Offering all possible agents detailed under one cover makes this appealing to a wider audience and saves researchers time The Forward will be written by Dr. Tetsuo Satoh, Chiba University, Japan. He is one of the most respected, recognizable authorities on chemical warfare agents which will set the authoritative tone for the book Covers risk to humans, animals and the environment equally. Researchers involved in assessing the risks involved with a possible chemical warfare attack and those who are developing response plans to such attacks must look at not only the risks to human health but to our wildlife and environment as well. The holistic approach taken in this book ensures that the researchers have ready access to the details no matter which aspect of the effects of CWA's they might be concerned with

A definitive, single source of information on PBPK modeling Physiologically-based pharmacokinetic (PBPK) modeling is becomingincreasingly important in human health risk assessments and insupporting pharmacodynamic modeling for toxic responses. Organizedby classes of compounds and modeling purposes so users can quicklyaccess information, this is the first comprehensive reference ofits kind. This book presents an overview of the underlying principles of PBPKmodel development. Then it provides a compendium of PBPK modelinginformation, including historical development, specific modelingchallenges, and current practices for: * Halogenated Alkanes * Halogenated Alkenes * Alkene and Aromatic Compounds * Reactive Vapors in the Nasal Cavity * Alkanes, Oxyhydrocarbons, and Related Compounds * Pesticides and Persistent Organic Pollutants * Dioxin and Related Compounds * Metals and Inorganic Compounds * Drugs * Antineoplastic Agents * Perinatal Transfer * Mixtures * Dermal Exposure Models In addition to pinpointing specific information, readers canexplore diverse modeling techniques and applications. Anauthoritative reference for toxicologists, ecotoxicologists, riskassessors, regulators, pharmacologists, pharmacists, and graduatestudents in pharmacokinetics and toxicology, Physiologically-BasedPharmacokinetic Modeling compiles information from leaders in thefield and discusses future directions for PBPK modeling.

A comprehensive reference on state-of-the-art risk assessment methodologies for drinking water Risk Assessment for Chemicals in Drinking Water discusses the major steps and goals in risk assessments and suggests ways to improve the methodologies and accuracy, while consolidating up-to-date information on the current principles and practices in one authoritative reference. After an enlightening overview of risk assessment practices and regulatory guidelines, it: Includes descriptions of the use of variability analysis, exposure analysis, physiologically based pharmacokinetics, and modeling for both cancer and non-cancer endpoints Describes the practices of major organizations, including the U.S. EPA, Health Canada, World Health Organization, and California Office of Environmental Health Hazard Assessment Includes complete chapters on risk assessment for essential nutrients, arsenic, chloroform, and perchlorate Explains how to address susceptible sub-populations, including the elderly and infants and children, in risk assessments Covers the potential of using genomic and proteomic screens Addresses recent advances, emerging issues, and future challenges With contributions and perspectives from leading scientists, this is the definitive resource for health and environmental scientists, toxicologists, risk assessors and managers, regulators, consultants, and other professionals responsible for the safety of drinking water.