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Author : Byron E. Butterworth
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.3/5 (91 download)
Download or read book Strategies for Short-term Testing for Mutagens/carcinogens written by Byron E. Butterworth and published by . This book was released on 1979 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Byron E. Butterworth
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (476 download)
Download or read book Strategies for Short-term Testing for Mutagens/carcinogens written by Byron E. Butterworth and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anne Trontell
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)
Download or read book Short-term Tests for Carcinogens, Mutagens, and Other Genotoxic Agents written by Anne Trontell and published by . This book was released on 1979 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H.F. Stich
Publisher : Springer
ISBN 13 : 9781461258483
Total Pages : 518 pages
Book Rating : 4.2/5 (584 download)
Download or read book Short-Term Tests for Chemical Carcinogens written by H.F. Stich and published by Springer. This book was released on 2011-10-25 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent surge of interest in designing, validating, and implementing short-term tests for carcinogens has been spurred by the fairly convincing correlation be tween the carcinogenicity and mutagenicity of chemicals and physical agents and by the assumption that DNA alteration, mutations, and chromosome aberrations are somehow involved in neoplastic transformation. Moreover, it has been tacitly assumed that the mutagenic capacity alone of compounds would induce regulatory agencies to pass rules for their removal from the environment and would lead the public to avoid them. The actual response, however, is quite different. Governmental departments shy away from making any decisions on the basis of in vitro test systems. The public at large is becoming irritated by daily an nouncements that many of their cherished habits could adversely affect their health. Industry appears to feel threatened and may reduce its search for new beneficial chemicals. The reluctance to accept wholeheartedly the mutagenicity tests for the detection of carcinogens is partly due to uncertainty about the in volvement of mutations in neoplastic transformation, partly due to the present difficulty of extrapolating results from various endpoints obtained on numerous organisms to man, and partly due to a multitude of complex events that lead in vivo to the evolvement of benign or malignant tumors.
Author : D. McGregor
Publisher : Oxford University Press, USA
ISBN 13 :
Total Pages : 548 pages
Book Rating : 4.:/5 (318 download)
Download or read book The Use of Short- and Medium-term Tests for Carcinogens and Data on Genetic Effects in Carcinogenic Hazard Evaluation written by D. McGregor and published by Oxford University Press, USA. This book was released on 1999 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lifetime assays for carcinogenicity in experimental animals, together with data on genetic and related effects on a variety of organisms, have long been the foundation for predictions of carcinogenic hazard to human beings. Recent scientific advances have provided new assays and novel test systems that are beginning to supplement, and in the future may even replace, the well-established tests that have been widely used for the last four decades. This publication reviews the evidence that justifies the use of lesions that precede histologically defined malignancy as endpoints to predict carcinogenicity. It evaluates the utility of non-mammalian species and of genetically engineered rodents as subjects for carcinogenicity tests and mutations in cancer-related genes in human and experimental animal tumours as 'footprints' of environmental carcinogens. It evaluates the use of established and novel assays for genetic toxicity in the prediction of carcinogenicity. Finally it formulates recommendations on the use of such data in the process of evaluation of carcinogenic hazards by the IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Author : Anne Trontell
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (121 download)
Download or read book Short-term Tests for Carcinogens, Mutagens, and Other Genotoxic Agents written by Anne Trontell and published by . This book was released on 1979 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Ashby
Publisher :
ISBN 13 :
Total Pages : 472 pages
Book Rating : 4.E/5 ( download)
Download or read book Evaluation of Short-Term Tests for Carcinogens: Volume 1 written by John Ashby and published by . This book was released on 1988 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ashutosh Kumar
Publisher : Academic Press
ISBN 13 : 0128092602
Total Pages : 350 pages
Book Rating : 4.1/5 (28 download)
Download or read book Mutagenicity: Assays and Applications written by Ashutosh Kumar and published by Academic Press. This book was released on 2017-09-26 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : J. F. Douglas
Publisher : Springer Science & Business Media
ISBN 13 : 1461251648
Total Pages : 339 pages
Book Rating : 4.4/5 (612 download)
Download or read book Carcinogenesis and Mutagenesis Testing written by J. F. Douglas and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cancer has become the most critical health problem in the United States. It is expected that 25% of the people will develop this dread disease, and many of these will die from the malady. The causes of cancer are varied, but the best estimate available is that 70--90% arise from environmental factors. These statistics have triggered widespread governmental action along two lines: (l) An effort to identify those chemicals and conditions that give rise to malignant processes has been mounted by the Carcino genesis Testing Program, the National Cancer Program, and subse quently, the National Toxicology Program. (2) Regulatory laws have been enacted that are administered by agencies such as TSCA, FIFRA, EPA, FDA, OSHA, and so on, whose mission is to minimize public ex posure to carcinogens. Since direct verification that specific chemicals induce cancer in hu of unanticipated expo mans is necessarily limited to known incidences sure and is therefore rare, most chemicals are identified as carcinogens only by laboratory experiments. At present, the only accepted procedure is long-term animal bioassay, and not only are these studies expensive and time-consuming, but current worldwide resources permit the evalua tion of only 300-400 chemicals per year, a miniscule amount compared to what is available in the commercial world: 30,000 existing chemicals, with approximately 700 new such materials being introduced every year.
Author : Alexander Hollaender
Publisher : Springer Science & Business Media
ISBN 13 : 1461321476
Total Pages : 316 pages
Book Rating : 4.4/5 (613 download)
Download or read book Chemical Mutagens written by Alexander Hollaender and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 9 of Chemical Mutagens consists mainly of chapters discussing the development and validation of short-term assays to detect the mutagenic effects of environmental chemicals. These chapters include an assay with the grasshopper neuroblast, a comparison of mutagenic responses of human lung-derived and skin-derived diploid fibroblasts, a forward-mutation assay in Salmonella, a multigene sporulation test in Bacillus subtilis, a specific locus assay in mouse lymphoma cells, a study of the induction of bacteriophage lambda, and the granuloma pouch assay. In addition, there are two chapters on the identification of mutagens in cooked food and in human feces. Frederick 1. de Serres Research Triangle Park, North Carolina vii Contents Chapter 1 The Grasshopper Neuroblast Short-Term Assay for Evaluating the Effects of Environmental Chemicals on Chromosomes and Cell Kinetics 1 Mary Esther Gaulden, Jan C. Liang, and Martha J. Ferguson 1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Embryo Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. 1. Species. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. 2. Origin of Colonies . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. 3. Life Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. 4. Colony Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 6 2. 5. Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2. 6. Allergy to Grasshoppers . . . . . . . . . . . . . . . . . . . . . . 14 3. Grasshopper Egg, Embryo, and Cells . . . . . . . . . . . . . . . . . 14 3. 1. The Egg Shell and Membranes . . . . . . . . . . . . . . . . . 14 3. 2. Embryonic Development . . . . . . . . . . . . . . . . . . . . . . 17 3. 3. Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4. Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4. 1. Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4. 2. Preparation of Embryos for Cell Analysis . . . . . . . . . 34 4. 3. Analysis of Mutagen Effects. . . . . . . . . . . . . . . . . 40 . . . 5. Response of the Grasshopper Neuroblast to Mutagens . . . . 50 5. 1. Reproducibility of Data . . . . . . . . . . . . . . . . . . . . . . . 50 5. 2. Radiation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 5. 3. Chemical Mutagens . . . . . . . . . . . . . . . . . . . . . . . . . .
Author : Peter B. Farmer
Publisher : Springer Science & Business Media
ISBN 13 : 1468473131
Total Pages : 338 pages
Book Rating : 4.4/5 (684 download)
Download or read book The Molecular Basis of Cancer written by Peter B. Farmer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to describe the current state of knowledge and possible future developments in a number of major areas of research into the nature, causes and treatment of cancer. The contributing authors have been encouraged to discuss their subjects at the molecular level. It will become apparent to the reader that considerable developments in the understanding of the fundamental nature of cancer, in molecular terms, are constantly being made. This is particularly the case in the area of oncogene research where differences between tumour and normal cells can now be defined in terms of altered expression of DNA sequences. An understanding of the methods available for detecting cancer, of the process of carcinogenesis and of the means available for treating cancer can only be achieved with a precise knowledge of the basic biochemical and molecular processes involved. Since it is all to easy for the research scientist to become totally absorbed within the specialised area of research in which he is involved, the first chapter is an attempt to encourage a broader field of vision by introducing the clinician's view of the cancer problem, which illustrates the broad spectrum of basic problems that need to be solved by the cancer researcher.
Author : William M. Wardell
Publisher : Springer Science & Business Media
ISBN 13 : 1468440551
Total Pages : 339 pages
Book Rating : 4.4/5 (684 download)
Download or read book Drug Development, Regulatory Assessment, and Postmarketing Surveillance written by William M. Wardell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the outcome of the International School of Phar macology course sponsored as a NATO Advanced Study Institute and held in Erice (Sicily) at the Ettore Majorana Centre for Scientific Culture from October 3 through 12, 1980. The course, which consisted of lectures and teaching seminars, examined issues of international importance in all phases of drug development, assessment, and regu lation. In order to recreate both the atmosphere and substance of the meeting, a variety of materials are included here: the papers pre sented by the lecturers, a selection of key items from the supple mentary materials provided by the lecturers to the participants, notes on issues raised during the discussions, and accounts of certain special sessions arranged in response to interests expressed by those attending. The course covered two broad areas represented here by parts of the book. Part I, "Drug Assessment and Regulation," is based on the nine sessions of the course that ranged in focus from recent developments in the science of clinical pharmacology and drug development to discussions of whether and how the regulation of drug development can (or should) be harmonized internationally. In Part 11, "Postmarketing Surveillance," many aspects of this important subject are presented. Arguments outlining the potential benefits of national and international postmarketing surveillance systems are qualified by consideration of the problems inherent in devising and using these systems.
Author :
Publisher :
ISBN 13 :
Total Pages : 1576 pages
Book Rating : 4.:/5 (31 download)
Download or read book Federal Register written by and published by . This book was released on 1980-12-09 with total page 1576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Government Operations. Intergovernmental Relations and Human Resources Subcommittee
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.3/5 (121 download)
Download or read book FDA's Approval of the Today Contraceptive Sponge written by United States. Congress. House. Committee on Government Operations. Intergovernmental Relations and Human Resources Subcommittee and published by . This book was released on 1984 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H.F. Stich
Publisher : Springer Science & Business Media
ISBN 13 : 1461258472
Total Pages : 535 pages
Book Rating : 4.4/5 (612 download)
Download or read book Short-Term Tests for Chemical Carcinogens written by H.F. Stich and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent surge of interest in designing, validating, and implementing short-term tests for carcinogens has been spurred by the fairly convincing correlation be tween the carcinogenicity and mutagenicity of chemicals and physical agents and by the assumption that DNA alteration, mutations, and chromosome aberrations are somehow involved in neoplastic transformation. Moreover, it has been tacitly assumed that the mutagenic capacity alone of compounds would induce regulatory agencies to pass rules for their removal from the environment and would lead the public to avoid them. The actual response, however, is quite different. Governmental departments shy away from making any decisions on the basis of in vitro test systems. The public at large is becoming irritated by daily an nouncements that many of their cherished habits could adversely affect their health. Industry appears to feel threatened and may reduce its search for new beneficial chemicals. The reluctance to accept wholeheartedly the mutagenicity tests for the detection of carcinogens is partly due to uncertainty about the in volvement of mutations in neoplastic transformation, partly due to the present difficulty of extrapolating results from various endpoints obtained on numerous organisms to man, and partly due to a multitude of complex events that lead in vivo to the evolvement of benign or malignant tumors.
Author :
Publisher :
ISBN 13 :
Total Pages : 652 pages
Book Rating : 4.3/5 (129 download)
Download or read book Pesticides Abstracts written by and published by . This book was released on 1980 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andrew Teasdale
Publisher : John Wiley & Sons
ISBN 13 : 1119551218
Total Pages : 548 pages
Book Rating : 4.1/5 (195 download)
Download or read book Mutagenic Impurities written by Andrew Teasdale and published by John Wiley & Sons. This book was released on 2022-02-15 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
