Salmonella Mutagenicity Tests
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| Author | : Ludwig Hothorn |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 158 |
| Release | : 2013-03-08 |
| Genre | : Medical |
| ISBN | : 364248736X |
This book contains selected papers from a workshop on modern statistical methods in toxicology held during the EUROTOX '90 conference in Leipzig. The papers deal with the biostatistical evaluation of the commonly used toxicological assays, i.e. mutagenicity, long-term carcinogenicity, embryotoxicity and chronic toxicity assays. The biological background is considered in detail, and most of the related statistical approaches described. In five overview papers, the present state of the art of the related topics is given, while in several contributed papers new approaches are discussed. The most important features are: - A new view on the per-litter analysis problem in em- bryotoxicity assays. - A highly sophisticated treatment of the so-called muta-tox problem in mutagenicity assays. - A detailed discussion of the multiplicity problem based on the closed testing procedure. This volume provides readers with an overview of modern biostatistical methods for several toxicological assays and is in part intended for direct, practical use.
| Author | : B.J. Kilbey |
| Publisher | : Elsevier |
| Total Pages | : 876 |
| Release | : 2012-12-02 |
| Genre | : Medical |
| ISBN | : 0444600981 |
The compilation of this book was prompted by the necessity of a bench volume which could provide the necessary background information on materials, experimental design, pitfalls and dificulties, in order to perform a particular test in an acceptable way with a minimal need for additional expert help. This Second Edition updates this information, providing: - a comprehensive bench guide - methods known to be reliable - a broad spectrum of approaches - tips to avoid pitfalls when using unfamiliar techniques - data from population records - safety aspects of mutagens and carcinogens - basic statistical concepts for experiment design This `on the bench' methodological text provides the necessary information for most of the common assays for genetic damage in use. The book includes methods which have been sufficiently used and tested to make their use reliable, but also presents methods which are not widely used at present, but which might prove most useful in screening for mutagenic effects.
| Author | : Albert P. Li |
| Publisher | : CRC Press |
| Total Pages | : 508 |
| Release | : 1991-03-27 |
| Genre | : Medical |
| ISBN | : 9780849388156 |
Genetic Toxicology is a comprehensive book covering the historical perspective of genetic toxicology; basic mechanisms of mutations and chromosomal effects; health consequences of genetic damage, including cancer and inheritable mutations; properties of physical, chemical, and biological mutagens; risk assessment of human exposure to genotoxicants; and the current position of some government regulatory agencies in the United States on the issues of genetic toxicology. The book will be a useful reference for students and researchers in toxicology, genetics, cancer biology, and medicine who are interested in the basic and applied principles of genetic toxicology. It will also benefit industrial toxicologists, products registration specialists, and government regulatory specialists with responsibility for the safety evaluation of industrial and environmental agents.
| Author | : OECD |
| Publisher | : OECD Publishing |
| Total Pages | : 12 |
| Release | : 1997-07-21 |
| Genre | : |
| ISBN | : 9264071245 |
The bacterial reverse mutation test uses amino-acid requiring at least five strains of Salmonella typhimurium and Escherichia coli to detect point mutations by base substitutions or frameshifts. The principle of this bacterial reverse mutation test ...
| Author | : David J. Kirkland |
| Publisher | : Cambridge University Press |
| Total Pages | : 316 |
| Release | : 2008-01-03 |
| Genre | : Medical |
| ISBN | : 9780521048149 |
This rigorous and practical account of the interpretation of mutagenicity test data draws upon the expertise of toxicologists and statisticians. Chemicals, such as drugs, food additives and pesticides, all need careful screening to eliminate potentially mutagenic compounds.
| Author | : Ashutosh Kumar |
| Publisher | : Academic Press |
| Total Pages | : 352 |
| Release | : 2017-09-26 |
| Genre | : Science |
| ISBN | : 0128092602 |
Mutagenicity: Assays and Applications presents an extensive examination of the detection, assessment and future of mutagenicity, particularly as it concerns human health and the environment. Chapters focused on specific types of mutagens or testing methods for their detection collectively explore the current state of human and environmental mutagenesis, future perspectives and regulatory needs. The test procedures for measuring mutagenicity, their advantages and limitations are described with practical and procedural detail, along with their presentation and data processing aspects. It is an essential reference covering the breadth and depth of the field of mutagenicity studies and regulation. By providing both important introductory material and practical assays and applications, this book is useful to graduate students, academic and industry researchers and regulators at various stages of their careers, leading to improved risk assessment and regulation. - Presents an up-to-date and in-depth review of the current state of mutagenesis research - Draws upon the combined experience and expertise of an international group of highly respected editors and chapter authors - Provides an introduction to the concept of mutagenesis with particular consideration given to novel chemicals and materials
| Author | : Frederick J. De Serr |
| Publisher | : Springer |
| Total Pages | : 486 |
| Release | : 2011-10-13 |
| Genre | : Science |
| ISBN | : 9781461330745 |
In the rapidly developing field of environmental mutagenesis, the use of stand ardized protocols has permitted the evaluation of large numbers of chemicals for mutagenic and potential carcinogenic activity. In this sixth volume of Chemical Mutagens, the chapters by Perry, Williams, Rosenkranz and Leifer, Kada et al., Pienta, Tazima, Epler, and Rinkus and Legator provide a systematic listing of the chemicals that have been tested, bringing together both unpublished and previously published data. These chapters will serve as an important milestone by providing a convenient reference to tabulated test data with particular assay systems. Another important area of research is the modification of mutagenic activity. In the chapter by Sugimura and Nagao, factors that alter in vitro metabolic activation are discussed, whereas in the chapter by Maher and McCormick, the role of genetic heterogeneity is considered. Equally important is our need to obtain a better understanding of mutation-induction kinetics, and the mathematical analysis by Haynes and Eckardt provides an important step in this direction. An important new approach for the induction of specific locus mutations in human cells in culture is discussed in the chapter by Thilly and co-workers. We have also been concerned about the problems in the practical applica tion of various short-term tests in commerical testing laboratories. The prob lems emerging in the evaluation of potentially important new chemicals have been discussed in a chapter by Brusick et al.
| Author | : Andrew Teasdale |
| Publisher | : John Wiley & Sons |
| Total Pages | : 548 |
| Release | : 2022-02-15 |
| Genre | : Medical |
| ISBN | : 1119551218 |
Learn to implement effective control measures for mutagenic impurities in pharmaceutical development In Mutagenic Impurities: Strategies for Identification and Control, distinguished chemist Andrew Teasdale delivers a thorough examination of mutagenic impurities and their impact on the pharmaceutical industry. The book incorporates the adoption of the ICH M7 guideline and focuses on mutagenic impurities from both a toxicological and analytical perspective. The editor has created a primary reference for any professional or student studying or working with mutagenic impurities and offers readers a definitive narrative of applicable guidelines and practical, tested solutions. It demonstrates the development of effective control measures, including chapters on the purge tool for risk assessment. The book incorporates a discussion of N-Nitrosamines which was arguably the largest mutagenic impurity issue ever faced by the pharmaceutical industry, resulting in the recall of Zantac and similar drugs resulting from N-Nitrosamine contamination. Readers will also benefit from the inclusion of: A thorough introduction to the development of regulatory guidelines for mutagenic and genotoxic impurities, including a historical perspective on the development of the EMEA guidelines and the ICH M7 guideline An exploration of in silico assessment of mutagenicity, including use of structure activity relationship evaluation as a tool in the evaluation of the genotoxic potential of impurities A discussion of a toxicological perspective on mutagenic impurities, including the assessment of mutagenicity and examining the mutagenic and carcinogenic potential of common synthetic reagents Perfect for chemists, analysts, and regulatory professionals, Mutagenic Impurities: Strategies for Identification and Control will also earn a place in the libraries of toxicologists and clinical safety scientists seeking a one-stop reference on the subject of mutagenic impurity identification and control.
| Author | : Claudio Nicolini |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 496 |
| Release | : 2013-03-09 |
| Genre | : Medical |
| ISBN | : 1468443348 |
During October 18-30, 1981, the second course of the International School of Pure and Applied Biostructure, a NATO Advanced Study Institute, was held at the Ettore Majorana Center for Scientific Culture in Erice, Italy, co-sponsored by the International Union Against Cancer, the Italian League Against Cancer, the Italian Ministry of Public Education, the Italian Ministry of Scientific and Technological Research, the North Atlantic Treaty Organization, the Italian National Research Council, the Sicilian Regional Government and two pharmaceutical Companies (Zambeletti and Farmitalia). The subject of the course was "Chemical Carcino genesis" with participants selected world-wide from 18 different countries. It is now eminently clear that.the bulk of human cancers are related to one of several types of environmental exposure. Of the environmental hazards, chemicals are among the best characterized carcinogens. However, how chemicals induce cancer is still poorly understood. Because of the magnitude of the problem and the ob vious need for a much more critical scientific analysis of the process by which cancer is induced (carcinogenesis), it was highly desirable to expose a greater number of scientists with varying background to some of the latest thinking in chemical carcino genesis. The course had this as its major objective and the re sulting book does reflect it.
| Author | : Lois Swirsky Gold |
| Publisher | : CRC Press |
| Total Pages | : 840 |
| Release | : 1996-11-26 |
| Genre | : Medical |
| ISBN | : 9781439810644 |
This unique new reference contains the Carcinogenic Potency Database (CPDB), which analyzes results of decades of animal cancer tests, including all Technical Reports of the National Toxicology Program (NTP) and the general published literature. A guide to the literature of animal cancer tests, the CPDB includes references to each published experiment and never-before published analyses. For each of 5,000 long-term experiments on 1,300 chemicals, the user-friendly format includes data on the species, strain, and sex of the test animal; features of experimental protocol such as the route of administration, duration of dosing, dose levels, and duration of the experiment; histopathology and tumor incidence; the shape of the dose-response curve; published author's opinion about the carcinogenicity at each site; and reference to the original publication of the test results. In addition, a measure of carcinogenic potency, the TD50, its statistical significance and confidence limits, are given for each tumor site. An overview is provided of earlier publication updates, such as positivity rates, reproducibility, interspecies extrapolation, and ranking possible carcinogenic hazards. The book also includes a summary of the NTP genetic toxicity test results on 1,500 chemicals, which are referenced to the original publications, including the Salmonella (Ames) test, L5178Y mouse lymphoma cell mutation test, chromosome aberration and sister chromatid exchange tests in cultured Chinese hamster ovary cells, and the sex-linked recessive lethal mutation test in Drosophila melanogaster. An index with chemicals listed by CAS number allows cross referencing between the carcinogenicity and genotoxicity databases, making data easy to find.
