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Books > Medicine > Other branches of medicine > Pharmacology > Medical toxicology
Nationally, toxicology programs have evolved from a traditional exploration of the chemistry and applied toxicity of chemicals and drugs to a more comprehensive study of toxicology and toxicology testing as independent entities. Consequently, the second edition of Principles of Toxicology Testing starts with basic toxicological principles, including absorption, distribution, metabolism, and elimination of toxins, including chemicals and drugs. The book then continues with animal (in vivo) and in vitro toxicology testing methods associated with toxicological analysis and preclinical drug development. As in the first edition, the book begins with an introduction into the fundamentals of toxicology (Section I) to prepare readers for the subsequent topics and continues through with a discussion of toxicokinetics and human risk assessment. This introductory material is useful in understanding the applications of toxicology testing. Section II describes the fundamental principles of toxicology testing in animals in greater detail. This section describes acute toxicity studies as well as subchronic and chronic studies performed on animals. Special emphasis is placed on study design and determination of classical indicators for acute and chronic testing, such as the LD50. The book examines other short- and long-term animal toxicity testing methodologies, including dermal, ocular, and reproductive toxicity testing. In addition, mutagenicity and carcinogenicity studies are also discussed in separate chapters. Section III introduces and discusses in vitro alternatives to animal toxicology tests. This section emphasizes cell culture methodology and cellular methods for acute systemic toxicity, target organ toxicity, and local toxicity. The contributors present the advantages and disadvantages of alternative methods. They also describe the use of high-throughput screening and its applications, the concepts of standardization and validation of in vitro techniques (especially large, organized validation efforts currently supported by US and EU regulatory agencies), and the theories supporting the development of in vitro methodologies. This second edition is a must-read for undergraduate and graduate toxicology students. Industrial and academic research centers will also find the text useful for establishing a toxicology testing laboratory.
Extracted from the Drug Abuse Handbook, 2nd edition, to give you just the information you need at an affordable price. Pathology, Toxicogenetics, and Criminalistics of Drug Abuse presents a detailed introduction to the cutting-edge advances in this emerging field. Beginning with a definition and explanation of the scheduling of controlled substances, the book covers all illicit drugs, as well as several legitimate pharmaceutical preparations that are used illicitly, including steroids. It describes in detail the most common pathologic syndromes seen in the hearts, lungs, and central nervous systems of drug abusers and explains how inherited genetic defects and variations can alter drug effects. Written by leading investigators in the field, this useful volume describes the techniques most commonly used by forensic analysts including chemical confirmatory tests such as microcrystal identification and gas chromatography/mass spectrometry. The book reviews the basics of toxicogenetics, including the molecular changes in cardiac structure ("channelopathies") that may cause sudden death.
This second edition continues to present a compendium of methods and supporting data that allows the scientist to perform cookbook methods using solid phase extraction to isolate compounds. The methods presented have been used for hundreds of different compounds, thus the technique offers comprehensive technology to the researcher. The major changes will be in expanded methods (new and contemporary drugs), a new section on hardware, new techniques which have evolved, a reference expansion on pKa data and a compilation of helpful web links.
This book presents the structure of the main toxins of aquatic origin, their distribution, producing species and vectors, their mechanisms of action, the clinical aspects of envenomation in humans, their effects in laboratory or wild animals, their toxicokinetic properties, including the relevant treatment, detection methods and regulatory aspects for management. The work also presents the main species associated with the injuries, poisonings their toxins, mechanism of action and the clinical aspects of the envenomations by aquatic animals and discusses the actual measures utilized in the first aid and hospital treatments. Marine toxins such as palytoxins, brevetoxins, saxitoxin, ciguatoxins, okadaic acid, azaspiracid toxins, equinatoxins are also dealt with in this volume. These toxins can be lethal as well as having a complex and large molecular structure and display mechanisms by which they act very specifically on targets, receptors or on critical body proteins. The marine and freshwater environments are the new frontiers of humanity, but the increase of economic and tourist activities provoke nasty encounters between aquatic animals and humans. The main victims are swimmers, professional and sportive fishermen, surfers and scuba divers as well as people working in related fields. The identification, knowledge and treatment of envenomations caused by venomous and poisonous animals are not adequate and the prevention of injuries still is not possible. Additionally, the immense potential of the pharmacologic effects of their toxins is not fully explored. Toxins of venomous aquatic animals can cause proteolysis, myotoxicity, hemotoxicity (mainly hemolysis), cytotoxicity and neurotoxicity. The neurotoxicity is generally associated with toxins of dinoflagellates and cyanobacteria, present in poisonous and/or contaminated invertebrates and fish.
A comprehensive guide to general strategies and specific methods for testing the immunotoxicity of chemicals in animal models and humans. Addressed to those seeking a basic introduction to the field as well as specialist researchers the book takes its focus from growing concern in scientific and public communities about the capacity of environmental agents to disrupt normal immune functions and thus increase susceptibility to tumours and infectious diseases. Compounds known to adversely affect the immune system are numerous and include drugs pesticides solvents halogenated and aromatic hydrocarbons and metals. The book draws on considerable recent progress in understanding the immunological consequences of chemical insults as well as increasingly sophisticated methodologies for assessing such effects. Close to 1000 references are included in this authoritative guide. The book opens with a detailed basic introduction to immunotoxicology. An extensive explanation of the function histophysiology and pathophysiology of the immune system emphasizes features that can aid the understanding and interpretation of the pathological changes caused by immunotoxic insults. Chapter two on the health impact of selected immunotoxic agents gives illustrative examples for some 30 chemicals that have been shown to exert immunotoxic effects in laboratory animals and for an additional seven groups of chemicals known to disturb immune functions in humans. For each brief discussions illustrate the chemical's distinct immunosuppressive properties and the mechanisms by which it exerts its toxic effects on the immune system. Chapter three provides detailed descriptions of a number of tests used in a tiered approach to the assessment of immunotoxicity. Against this background specific nonfunctional and functional tests for the assessment of immunotoxicology in experimental animals are presented and explained in full detail. Information on individual tests includes an explanation of why the test is important the types of data it can yield and exactly how it should be performed. Also included are sections offering advice on assessments in non-rodent species "in vitro "approaches and approaches using biomarkers in epidemiological studies and monitoring. The chapter concludes with a discussion of good laboratory practices for immunotoxicology studies and procedures for the validation of tests. Chapter five explains the much more complicated procedures needed to assess immunotoxicity in humans. An explanation of general questions to be considered when designing epidemiological studies is followed by presentation of three recommended testing schemes proposed by WHO and other agencies for preliminary evaluation of individuals exposed to immunotoxicants. Specific assays for assessing immune status are also described. The final chapter outlines a step-by-step process of risk assessment specific to the evaluation of potentially immunotoxic chemicals.
Initially, because of the inadequate sensitivity of devices and other limitations, only major venom components of the dominant species were studied. However, in last two decades, increased sensitivity of devices and the development of new techniques, such as transcriptomics and proteomics techniques, have permitted us to analyze the structures and functions of rare species and to identify novel minor components. As a result, the number of venom components identified is increasing dramatically and the physiological functions of each component is more deeply understood. The scope of this book provides the readers an updated and comprehensive presentation on snake venoms. The subjects are divided into six sections, starting with the overview of snake venom compositions in Malaysian species, followed by description of enzymes and enzyme inhibitors contained in snake venoms. Also discussed are the effects of snake venom on cellular receptors, ion channels, blood, and lymph, as well as cytotoxic and antimicrobial molecules present in snake venoms. The last section covers the clinical consequences of envenomation and the management of snakebites using antivenins.
This book covers basic aspects of the molecular biology, biochemistry and pharmacology of the plasminogen-plasmin (fibrinolytic) system. Individual chapters, written by well-known experts in the field, are devoted to plasminogen and its activation, the tissue-type plasminogen activator (tPA), the urinary-type-plasminogen activator (uPA), inhibitors of the fibrinolytic system, and the assembly of fibrinolytic constituents on cell surfaces. The major part of the book deals with the therapeutic use of thrombolytic agents in myocardial infarction, deep venous thrombosis, pulmonary embolism, peripheral arterial occlusions and stroke. The newest thrombolytic agents are discussed in depth. Results of major clinical trials up to the end of 1999 are critically evaluated. The volume is a modern up-to-date presentation of the entire field of the treatment of arterial and venous thromboses with thrombolytic agents.
Building on the previous edition with contributions from internationally renowned experts this book provides a fully comprehensive resource for managing the post emergency/treatment stage of acute poisoning. Chapters incorporate evidence-based paradigms with up-to-date citations from the original medical literature. Topic areas covered include: diagnosis and management of the critically poisoned patient, including pediatric patients and poisoning in pregnancy; toxic syndromes including hepatotoxic and pulmonary syndromes as well as poisonings from medications, drugs of abuse, chemical and biological agents. This book is an essential resource for Clinical Toxicologists, Intensivists and Emergency Medicine specialists in training and in practice.
This book will be written by experts for professionals, scientists and all those involved in toxicological data generation and decision-making. It is the updated and expanded version of a monograph published in German in 2004. Chemical safety is regulated on various levels including production, storage, transport, handling, disposal or labelling. This book deals comprehensively with the safety-ensuring methods and concepts employed by regulatory agencies, industry and academics. Toxicologists use experimental and scientific approaches for data collection, e.g. about chemical hazards, physicochemical features or toxicokinetics. The respective experimental methods are described in the book. Toxicologists also deal with much insecurity in the exposure and effect scenarios during risk assessment. To overcome these, they have different extrapolation methods and estimation procedures at their disposal. The book describes these methods in an accessible manner. Differing concepts from one regulation area to another are also covered. Reasons and consequences become evident when reading the book. Altogether, the book Regulatory Toxicology will serve as an excellent reference."
The annotated bibliography that follows summarizes some of the more important studies that have been published concerning smoking and its effects on the fetus along with reports of the various efforts that have been undertaken to reduce the impact of smoking during pregnancy. The material has been divided into topics to guide the reader and cross-references are included at the end of each section. An Author Index is also included to guide the reader to relevant publications when only an author's name is known. The following comments constitute an overall summary of the literature.
Uses court testimony and interviews to document the events which led cattle in Michigan and, ultimately, Michigan's people, to become contaminated with a highly toxic chemical-polybrominated biphenyl.
This volume provides documentations for the established MAK values (maximum workplace concentrations) of selected occupational toxicants, including an authoritative review of the available toxicological studies and data. For each substance, the toxic effects, mechanisms and modes of action, toxicogenetics and metabolism, effects in man and animals are described. In addition, the carcinogenic, germ-cell mutagenic, sensitizing or skin-resorptive effects as well as their toxicity to the reproductive system are evaluated, plus basic physico-chemical data are provided. The documentations are thus not only essential for the application of MAK values but also provide a concise toxicological overview for each substance.
This volume provides detailed, ready-to-use protocols for air monitoring methods, developed to monitor concentrations of occupational toxicants at the workplace, while they can also be used for environmental monitoring. All the methods are reliable, reproducible, adhere to quality assurance standards and cover all the required steps from sampling to the interpretation of results. This includes data on precision, accuracy, and detection limit, calibration procedures as well as potential sources of systematic errors. In addition, the advantages and disadvantages of each method are clearly outlined.
Papers of a meeting held at the Cold Spring Harbor Laboratory (Oct. 1986) address the mechanisms of induction of abnormal embryonic and fetal development from molecular as well as risk assessment perspectives and provide a common ground to assist developmental biologists and teratologists in evaluat |
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