Mechanisms of Mutagenesis by N-ethyl-N-nitrosourea in Escherichia Coli and Human Cells

Mechanisms of Mutagenesis by N-ethyl-N-nitrosourea in Escherichia Coli and Human Cells PDF Author: Kristin A. Eckert
Publisher:
ISBN:
Category :
Languages : en
Pages : 418

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Mechanisms of Mutagenesis by N-ethyl-N-nitrosourea in Escherichia Coli and Human Cells

Mechanisms of Mutagenesis by N-ethyl-N-nitrosourea in Escherichia Coli and Human Cells PDF Author: Kristin A. Eckert
Publisher:
ISBN:
Category :
Languages : en
Pages : 418

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Molecular and Cellular Mechanisms of Mutagenesis

Molecular and Cellular Mechanisms of Mutagenesis PDF Author: J. Lemontt
Publisher: Springer Science & Business Media
ISBN: 1461334764
Category : Science
Languages : en
Pages : 391

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Book Description
It has been nearly 35 years since the peacetime Biology Division of Oak Ridge National Laboratory was started, born of rather inauspicious conditions. Virtually no facilities were available and most of the wartime scientists had left. So, when we started out, it was obvious to me that something had to be done to reestab lish research. Even more, because Oak Ridge was not known at that time for its biological work but rather for the separation of Uranium 235, nuclear reactor development, and radioisotope produc tion, a new tradition had to be promoted. Although good biological work had been done at Oak Ridge during the war to protect the workers and the results of this work were quite excellent, very few installations remained. When we started the work of the Biology Division, it became essential to make it part of the flow of mod~rn biology allover the world. As Director, I had to do more than just attract promising scientists. We created an atmosphere conducive to creative research and nurtured all of the other aspects of a productive laboratory. Of course, we carefully prepared the results of our work in publish able form. We made a sincere effort to invite seminar speakers and lecturers to come to Oak Ridge despite the sacrifices this presented to our early budget. We also had to do something more, and here I "cashed in" on my experience of the previous 15 years.

Induced Mutagenesis

Induced Mutagenesis PDF Author: Christopher W. Lawrence
Publisher: Springer Science & Business Media
ISBN: 1468443828
Category : Medical
Languages : en
Pages : 433

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Book Description
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.

Molecular Mechanisms of Metal Toxicity and Carcinogenicity

Molecular Mechanisms of Metal Toxicity and Carcinogenicity PDF Author:
Publisher:
ISBN:
Category : Carcinogenicity testing
Languages : en
Pages : 372

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DNA Repair Mechanisms and Their Biological Implications in Mammalian Cells

DNA Repair Mechanisms and Their Biological Implications in Mammalian Cells PDF Author: M. Lambert
Publisher: Springer Science & Business Media
ISBN: 1468413279
Category : Science
Languages : en
Pages : 654

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Book Description
This volume contains edited contributions from the speakers at the NATO Advanced Research Workshop on "DNA Repair Mechanisms and Their Biological Implications in Mammalian Cells" held October 1-6, 1988, at the Abbaye Royale de Fontevraud, Fontevraud France. The meeting was dedicated to Paul Howard-Flanders (Yale University, New Haven, CT. , 1919-1988), whose seminal con tributions to the DNA repair field include the cO-discovery of the excision repair pathway, the elucidation of post-repli cation repair in E. coli, the isolation of the lexA and recC mutants, and his extensive work on the enzymology of RecA. A plethora of recent developments in DNA repair mechan isms and related processes in mammalian cells have advanced our understanding of this field in a number of different areas and have given new emphasis to the ways these systems both resemble DNA repair processes in other groups of organisms in some respects yet are strikingly different from them in others. Within the past decade there have been a number of international conferences on DNA damage and repair mechanisms but none has been focused on these processes in mammalian cells.

How Tobacco Smoke Causes Disease

How Tobacco Smoke Causes Disease PDF Author: United States. Public Health Service. Office of the Surgeon General
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 728

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Book Description
This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.

Chemical Carcinogenesis and Mutagenesis I

Chemical Carcinogenesis and Mutagenesis I PDF Author:
Publisher: Springer Science & Business Media
ISBN: 3642747752
Category : Medical
Languages : en
Pages : 617

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Book Description
I have been privileged to witness and participate in the great growth of knowledge on chemical carcinogenesis and mutagenesis since 1939 when I entered graduate school in biochemistry at the University of Wisconsin Madison. I immediately started to work with the carcinogenic aminoazo dyes un der the direction of Professor CARL BAUMANN. In 1942 I joined a fellow graduate student, ELIZABE1H CAVERT, in marriage and we soon commenced a joyous part nership in research on chemical carcinogenesis at the McArdle Laboratory for Cancer Research in the University of Wisconsin Medical School in Madison. This collaboration lasted 45 years. I am very grateful that this volume is dedi cated to the memory of Elizabeth. The important and varied topics that are reviewed here attest to the continued growth of the fields of chemical car cinogenesis and mutagenesis, including their recent and fruitful union with viral oncology. I feel very optimistic about the application of knowledge in these fields to the eventual solution of numerous problems, including the detection and estimation of the risks to humans of environmental chemical carcinogens and re lated factors.

Transformation of Human Diploid Fibroblasts

Transformation of Human Diploid Fibroblasts PDF Author: George E. Milo
Publisher: CRC Press
ISBN: 9780849349560
Category : Medical
Languages : en
Pages : 306

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Book Description
This comprehensive publication draws together the important aspects of carcinogen-cell interaction. This interesting work describes the regulation of normal cell proliferation, cellular responses to carcinogen damage, the biologic consequences of cellular DNA modification, the structural and genomic changes resulting from carcinogen insult, and the possible involvement of such changes in the conversion of normal human fibroblasts to malignant cells. It presents current reviews with up-to-date literature references and provides critical information from leading investigators that is essential in understanding the biology of human cell transformation. This volume is especially useful to advanced students in genetic toxicology, molecular biologists, and all who are interested in the molecular and macromolecular changes in human cells leading to neoplasia.

Manual on MUTATION BREEDING THIRD EDITION

Manual on MUTATION BREEDING THIRD EDITION PDF Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251305269
Category : Technology & Engineering
Languages : en
Pages : 319

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Book Description
This paper provides guidelines for new high-throughput screening methods – both phenotypic and genotypic – to enable the detection of rare mutant traits, and reviews techniques for increasing the efficiency of crop mutation breeding.

Biotechnologies for Plant Mutation Breeding

Biotechnologies for Plant Mutation Breeding PDF Author: Joanna Jankowicz-Cieslak
Publisher: Springer
ISBN: 3319450212
Category : Science
Languages : en
Pages : 343

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Book Description
This book is open access under a CC BY-NC 2.5 license. This book offers 19 detailed protocols on the use of induced mutations in crop breeding and functional genomics studies, which cover topics including chemical and physical mutagenesis, phenotypic screening methods, traditional TILLING and TILLING by sequencing, doubled haploidy, targeted genome editing, and low-cost methods for the molecular characterization of mutant plants that are suitable for laboratories in developing countries. The collection of protocols equips users with the techniques they need in order to start a program on mutation breeding or functional genomics using both forward and reverse-genetic approaches. Methods are provided for seed and vegetatively propagated crops (e.g. banana, barley, cassava, jatropha, rice) and can be adapted for use in other species.