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The 19th annual meeting of the European Environmental Mutagen Society was held in Rhodes, Greece, from October 21st to 26th, 1989. The programme was chosen to explore what is currently known about the mechanisms of mutagenesis and carcinogenesis, induced by environmental agents, and the questions regarding the relationship of these two processes. Recent findings, techniques and methodologies in the area of biomonitoring of humans exposed to environmental mutagens-carcinogens were presented and considerable attention was also paid to the aspects and issues of collaborative environmental policy. Researchers from allover the world contributed to the programme of the meeting with posters and oral presentations, providing a variety of new data and interesting scientific approaches. A number of outstanding scientists were invited to present the results of their work. It is only their presenta tions which are included in this book, covering the following topics: Mutations and carcinogenesis; mechanisms of chemical ly-induced genetic effects on molecular, chromosomal and cell division level; adaptability and repair mechanisms; chemical carcinogenesis and oncogenes; structure and metabolism of mutagens-carcinogens; biomonitoring and epidemiology of humans exposed to environmental mutagens-carcinogens. For the sake of evaluating and controlling the mutagenic and carcinogenic potential of our environment it is indispens able to understand the mechanisms and processes by which chemicals act on the genetic material, causing either heredi tary disease or cancer. The pUblication of these proceedings will hopefully contribute to this task.
Germ-line and somatic mutations are recognized as significant causes of human disease, and so the detection, identification and study of mutagens in the environment is of increasing mutagenesis.Environmental Mutagenesis describes our current knowledge of the molecular mechanisms of mutagenesis and assesses the role of mutagens in cancer and inherited disease. Full details are also provided on all the major in vivo and in vitro methods of mutagenecity testing, including recently developed methods such as fluorescence in situ hybridization (FISH), the use of genetically engineered cells, and transgene technology.This book presents a unique overview of the current status of mutagenecity research and genetics toxicology in the form of reviews by leading researchers in the field. It is essential reading for all with an interest in genetic toxicology and molecular carcinogenesis, including molecular geneticists, genetic counselors and clinicians.
Hereis the first historical and sociological account of the formation of an interdisciplinary science known as genetic toxicology, and of the scientists' social movement that created it. After research geneticists discovered that synthetic chemicals were capable of changing the genetic structure of living organisms, scientists began to explore how these chemicals affected gene structure and function. In the late 1960s, a small group of biologists became concerned that chemical mutagens represented a serious and possibly global environmental threat. Genetic toxicology is nurtured as much by public culture as by professional practices, reflecting the interplay of genetics research and environmental politics. Drawing on a wealth of resources, Scott Frickel examines the creation of this field through the lens of social movement theory. He reveals how a committed group of scientist-activists transformed chemical mutagens into environmental problems, mobilized existing research networks, recruited scientists and politicians, secured financial resources, and developed new ways of acquiring knowledge. The result is a book that vividly illustrates how science and activism were interwoven to create a discipline that remains a defining feature of environmental health science.
Concern is often expressed that our environment may include an increasingly large variety of mutagens, but the extent of the potential hazard they pose has yet to be fully evaluated. A variety of empirical procedures has been devised with which to estimate the mutagenic potency of suspect agents, and the relative merits of different tests are currently under debate. Although such tests are of great value, and are indeed indispensable, they are not, nevertheless, sufficient. In the long term, accurate estimation of hazard will also require a better understanding of the various mechanisms of mutagenesis, and in many instances these remain remarkably elusive. Our knowledge and appreciation of the problem has increased substantially over the last few years, but the precise way in which many mutagens cause mutations is not yet known. The aims of this conference were therefore two-fold. The first was to survey present information about mutagenic mechanisms, drawing together data from work with various experimental approaches and organisms, in order to discern the principles governing the action of different mutagens. The second was to examine the implications of such principles for the execution and evaluation of test procedures, and critically assess the research areas that need further attention in order to improve the interpretation of test results. Chris Lawrence v ACKNOWLEDGEMENT We gratefully acknowledge the support provided for this Conference by the U.,S. Department of Energy, The Foundation for Microbiology, Exxon Corporation and the University of Rochester.