Test No. 473: In Vitro Mammalian Chromosomal Aberration Test

Test No. 473: In Vitro Mammalian Chromosomal Aberration Test
Author: Organisation for Economic Co-operation and Development
Publisher:
Total Pages: 20
Release: 2014
Genre:
ISBN:

The purpose of the in vitro chromosome aberration test is to identify agents that cause structural chromosome aberrations in cultured mammalian somatic cells. Structural aberrations may be of two types: chromosome or chromatid. The in vitro chromosome aberration test may employ cultures of established cell lines, cell strains or primary cell cultures. Cell cultures are exposed to the test substance (liquid or solid) both with and without metabolic activation during about 1.5 normal cell cycle lengths. At least three analysable concentrations of the test substance should be used. At each concentration duplicate cultures should normally be used. At predetermined intervals after exposure of cell cultures to the test substance, the cells are treated with a metaphase-arresting substance, harvested, stained. Metaphase cells are analysed microscopically for the presence of chromosome aberrations.

Test No. 473: In vitro Mammalian Chromosome Aberration Test

Test No. 473: In vitro Mammalian Chromosome Aberration Test
Author: OECD
Publisher: OECD Publishing
Total Pages: 10
Release: 1997-07-21
Genre:
ISBN: 9264071261

The purpose of the in vitro chromosome aberration test is to identify agents that cause structural chromosome aberrations in cultured mammalian somatic cells. Structural aberrations may be of two types: chromosome or chromatid. The in vitro ...

Genetic Toxicology Testing

Genetic Toxicology Testing
Author: Ray Proudlock
Publisher: Academic Press
Total Pages: 458
Release: 2016-05-28
Genre: Medical
ISBN: 0128010061

Genetic Toxicology Testing: A Laboratory Manual presents a practical guide to genetic toxicology testing of chemicals in a GLP environment. The most commonly used assays are described, from laboratory and test design to results analysis. In a methodical manner, individual test methods are described step-by-step, along with equipment, suggested suppliers, recipes for reagents, and evaluation criteria. An invaluable resource in the lab, this book will help to troubleshoot any assay problems you may encounter to optimise quality and efficiency in your genetic toxicology tests. Genetic Toxicology Testing: A Laboratory Manual is an essential reference for those new to the genetic toxicology laboratory, or anyone involved in setting up their own. - Offers practical and consistent guidance on the most commonly-performed tests and procedures in a genetic toxicology lab - Describes standard genetic toxicology assays, their methodology, reagents, suppliers, and analysis of their results - Includes guidance on general approaches: formulation for in vitro assays, study monitoring, and Good Laboratory Practice (GLP) - Serves as an essential reference for those new to the genetic toxicology laboratory, or anyone involved in setting up their own lab

Test No. 487: In Vitro Mammalian Cell Micronucleus Test

Test No. 487: In Vitro Mammalian Cell Micronucleus Test
Author: OECD
Publisher: OECD Publishing
Total Pages: 23
Release: 2010-07-23
Genre:
ISBN: 9264091017

The in vitro micronucleus test is a genotoxicity test for the detection of micronuclei in the cytoplasm of interphase cells. Micronuclei may originate from acentric chromosome fragments (i.e. lacking a centromere), or whole chromosomes that are ...

Genetic Toxicology

Genetic Toxicology
Author: James M. Parry
Publisher: Humana Press
Total Pages: 433
Release: 2011-12-07
Genre: Medical
ISBN: 9781617794209

The evaluation of potential mutagenic activity is a critical step in the assessment of the safety of both new and pre-existing chemical types. In Genetic Toxicology: Principles and Methods, expert contributors help to satisfy the demand for education in this tremendously important area of study. The volume covers three basic areas: the scientific basis of the discipline, the methodologies of the main test assays, and the application of the methods, all aimed primarily at scientists in the safety departments of the industries working with both natural and synthetic chemicals. Written in the highly successful Methods in Molecular BiologyTM series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Intuitive and cutting-edge, Genetic Toxicology: Principles and Methods provides crucial support to both laboratory workers in providing quality information on the appropriate application of techniques and to study directors in their assay selection and protocol design in this vital field.

Critical Pathways to Success in CNS Drug Development

Critical Pathways to Success in CNS Drug Development
Author: Neal R. Cutler
Publisher: John Wiley & Sons
Total Pages: 272
Release: 2010-01-22
Genre: Medical
ISBN: 9781444318586

Covering the latest advances in CNS drug development, this bookwill guide all those involved in pre-clinical to early clinicaltrials. The authors describe how recent innovations can acceleratethe development of novel CNS compounds, improve early detection ofefficacy and toxicity signals, and increase the safety oflater-stage clinical trials. The current crisis in the drug development industry iscritically reviewed, as well as the steps needed to correct theproblems, including new government-backed regulations andindustry-based innovations designed to accelerate CNS drugdevelopment in the future. Animal-based models of major CNS disorders are described indetail, and the ability of the latest in vitro and computer-basedmodels to simulate CNS disease states and predict drug efficacy andside-effects are examined. Particular attention is given tothe growing use of biomarkers and how they can be used effectivelyin early human trials as signals of potential drug efficacy, aswell as the increasingly important role of imaging studies to guidedose selection. Cognitive assessments that can be useful indicatorsof effect in patient populations are also discussed. Written by a team of clinical scientists involved in CNS drugtrials for over 20 years, and based on a wealth of drug developmentand clinical trial experience, Critical Pathways to Success inCNS Drug Developmentis full of practical advice forsuccessfully designing and executing CNS drug trials, avoidingpotential pitfalls, and complying with government regulations

Safety Evaluation of Certain Food Additives

Safety Evaluation of Certain Food Additives
Author: Joint FAO/WHO Expert Committee on Food Additives. Meeting
Publisher: World Health Organization
Total Pages: 292
Release: 2010
Genre: Business & Economics
ISBN: 9241660627

The toxicological monographs in this volume summarize the safety data on a number of food additives: branching glycosyltransferase from Rhodothermus obamensis expressed in Bacillus subtilis, cassia gum, ferrous ammonium phosphate, glycerol ester of gum rosin, glycerol ester of tall oil rosin, lycopene from all sources, octenyl succinic acid modified gum arabic, sodium hydrogen sulfate and sucrose oligoesters type I and type II. A monograph on the assessment of dietary exposure to cyclamic acid and its salts is also included. This volume and others in the WHO Food Additives Seriescontain information that is useful to those who produce and use food additives and veterinary drugs and those involved with controlling contaminants in food, government and food regulatory officers, industrial testing laboratories, toxicological laboratories and universities.