Download or read book Skin Sensitization in Chemical Risk Assessment written by World Health Organization and published by World Health Organization. This book was released on 2008 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Harmonization Project Document presents the conclusions of an IPCS Workshop on Skin Sensitization in Chemical Risk Assessment. The workshop focused on the question of methods for dose-response assessment, to evaluate the relative ability of a chemical to induce sensitization in the skin, and hence inform risk assessment for humans. In addition this publication includes a series of short articles on this topic by leading experts in the field. The conclusions of the workshop cover such aspects as the nature and utility for risk assessment of the data produced by non-animal test methods (such as quantitative structure-activity relationships), in vitro testing approaches, animal test methods, and epidemiological studies. While traditional animal test methods used for identification and regulation of skin sensitizers have focused on determining whether or not a substance is a sensitizer, this report describes the use of tests for deriving more informative potency information. This book will be useful to toxicologists, researchers, regulatory authorities and industry.

Download or read book Skin Sensitization in Chemical Risk Assessment written by and published by . This book was released on 2008 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication presents the conclusions of an IPCS Workshop on Skin Sensitization in Chemical Risk Assessment. The workshop focused on the question of methods for dose-response assessment, to evaluate the relative ability of a chemical to induce sensitization in the skin, and hence inform risk assessment for humans. In addition this publication includes a series of short articles on this topic by leading experts in the field. The conclusions of the workshop cover such aspects as the nature and utility for risk assessment of the data produced by non-animal test methods (such as quantitative structure-activity relationships), in vitro testing approaches, animal test methods, and epidemiological studies. While traditional animal test methods used for identification and regulation of skin sensitizers have focused on determining whether or not a substance is a sensitizer, this report describes the use of tests for deriving more informative potency information.--Publisher's description.

Download or read book A Framework to Guide Selection of Chemical Alternatives written by National Research Council and published by National Academies Press. This book was released on 2014-10-29 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, regulations governing chemical use have often focused on widely used chemicals and acute human health effects of exposure to them, as well as their potential to cause cancer and other adverse health effects. As scientific knowledge has expanded there has been an increased awareness of the mechanisms through which chemicals may exert harmful effects on human health, as well as their effects on other species and ecosystems. Identification of high-priority chemicals and other chemicals of concern has prompted a growing number of state and local governments, as well as major companies, to take steps beyond existing hazardous chemical federal legislation. Interest in approaches and policies that ensure that any new substances substituted for chemicals of concern are assessed as carefully and thoroughly as possible has also burgeoned. The overarching goal of these approaches is to avoid regrettable substitutions, which occur when a toxic chemical is replaced by another chemical that later proved unsuitable because of persistence, bioaccumulation, toxicity, or other concerns. Chemical alternative assessments are tools designed to facilitate consideration of these factors to assist stakeholders in identifying chemicals that may have the greatest likelihood of harm to human and ecological health, and to provide guidance on how the industry may develop and adopt safer alternatives. A Framework to Guide Selection of Chemical Alternatives develops and demonstrates a decision framework for evaluating potentially safer substitute chemicals as primarily determined by human health and ecological risks. This new framework is informed by previous efforts by regulatory agencies, academic institutions, and others to develop alternative assessment frameworks that could be operationalized. In addition to hazard assessments, the framework incorporates steps for life-cycle thinking - which considers possible impacts of a chemical at all stages including production, use, and disposal - as well as steps for performance and economic assessments. The report also highlights how modern information sources such as computational modeling can supplement traditional toxicology data in the assessment process. This new framework allows the evaluation of the full range of benefits and shortcomings of substitutes, and examination of tradeoffs between these risks and factors such as product functionality, product efficacy, process safety, and resource use. Through case studies, this report demonstrates how different users in contrasting decision contexts with diverse priorities can apply the framework. This report will be an essential resource to the chemical industry, environmentalists, ecologists, and state and local governments.

Download or read book Toxicological Risk Assessment of Chemicals written by Elsa Nielsen and published by CRC Press. This book was released on 2008-02-21 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlike many existing books on toxicology that cover either toxicity of a particular substance or toxicity of chemicals on particular organ systems, Toxicological Risk Assessment of Chemicals: A Practical Guide lays out the principle activities of conducting a toxicological risk assessment, including international approaches and methods for the risk

Download or read book A Practical Guide to Toxicology and Human Health Risk Assessment written by Laura Robinson and published by John Wiley & Sons. This book was released on 2018-11-05 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxicology – the study of the adverse effects of chemicals on living organisms is the cornerstone to all aspects of chemical safety and knowledge of the subject is needed in a wide spectrum of fields from the chemical industry to medicine, emergency services, forensics, and regulatory science. Toxicology involves the study of symptoms, mechanisms, treatments and detection of poisoning ... especially the poisoning of people. The many problems arising from a poor understanding of toxicology and its applications in hazard communication and chemical safety motivated the author’s training courses and webinars, leading to this valuable book. Providing a practical and accessible guide, A Practical Guide to Toxicology and Human Health Risk Assessment enables readers to quickly build up knowledge and understanding of toxicology and its use in hazard identification, which is a fundamental part of chemical risk assessment. The book also covers current toxicological testing strategies and the use of physicochemical test data in hazard identification and exposure assessment. Examples are provided throughout the book to highlight important issues along with a summary of the key points that have been covered in each of the respective chapters. The book concludes with a listing of online resources on toxicology and risk assessment.

Download or read book Toxicological Risks of Selected Flame Retardant Chemicals written by National Research Council and published by National Academies Press. This book was released on 2000-07-06 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ignition of upholstered furniture by small open flames from matches, cigarette lighters, and candles is one of the leading causes of residential-fire deaths in the United States. These fires accounted for about 16% of civilian fire deaths in 1996. On average, each year since 1990, about 90 deaths (primarily of children), 440 injuries, and property losses amounting to 50 million dollars have resulted from fires caused by the ignition of upholstered furniture by small open flames. Certain commercial seating products (such as aircraft and bus seats) are subject to flammability standards and sometimes incorporate FR-treated upholstery cover materials, but there is no federal-government requirement for residential upholstered furniture, and it is generally not treated with FR chemicals. It is estimated that less than 0.2% of all U.S. residential upholstery fabric is treated with flame-retardant (FR) chemicals. The Consumer Product Safety Act of 1972 created the U.S. Consumer Product Safety Commission (CPSC) as an independent federal regulatory agency whose mission is to protect the public from unreasonable risks of injury and death associated with consumer products. CPSC also administers the Flammable Fabrics Act, under which it regulates flammability hazards and the Federal Hazardous Substances Act (FHSA), which regulates hazardous substances including chemicals. In 1993, the National Association of State Fire Marshals petitioned CPSC to issue a performance-based flammability standard for upholstered furniture to reduce the risk of residential fires. The Commission granted that portion of the petition relating to small open flame ignition risks. In response to concerns regarding the safety of FR chemicals, Congress, in the fiscal year 1999 appropriations report for CPSC, requested that the National Research Council conduct an independent study of the health risks to consumers posed by exposure to FR chemicals that are likely to be used in residential upholstered furniture to meet a CPSC standard. The National Research Council assigned the project to the Committee on Toxicology (COT) of the Commission on Life Sciences' Board on Environmental Studies and Toxicology. COT convened the Subcommittee on Flame-Retardant Chemicals, which prepared this report. Subcommittee members were chosen for their recognized expertise in toxicology, pharmacology, epidemiology, chemistry, exposure assessment, risk assessment, and biostatistics. Toxicological Risks of Selected Flame-Retardant Chemicals is organized into 18 chapters and two appendices. Chapter 2 describes the risk assessment process used by the subcommittee in determining the risk associated with potential exposure to the various FR chemicals. Chapter 3 describes the method the subcommittee used to measure and estimate the intensity, frequency, extent, and duration of human exposure to FR chemicals. Chapters 4-19 provide the subcommittee's review and assessment of health risks posed by exposure to each of the 16 FR chemicals. Data gaps and research needs are provided at the end of these chapters.

Download or read book Alternative Toxicological Methods written by Harry Salem and published by CRC Press. This book was released on 2003-03-26 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together the recent and relevant contributions of over 125 scientists from industry, government, and academia in North America and Western Europe, Alternative Toxicological Methods explores the development and validation of replacement, reduction, and refinement alternatives (the 3Rs) to animal testing. Internationally recognized scientist

Download or read book The History of Alternative Test Methods in Toxicology written by and published by Academic Press. This book was released on 2018-10-20 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The History of Alternative Test Methods in Toxicology uses a chronological approach to demonstrate how the use of alternative methods has evolved from their conception as adjuncts to traditional animal toxicity tests to replacements for them. This volume in the History of Toxicology and Environmental Health series explores the history of alternative test development, validation, and use, with an emphasis on humanity and good science, in line with the Three Rs (Replacement,Reduction, Refinement) concept expounded by William Russell and Rex Burch in 1959 in their now classic volume, The Principles of Humane Experimental Technique. The book describes the historical development of technologies that have influenced the application of alternatives in toxicology and safety testing. These range from single cell monocultures to sophisticated, miniaturised and microfluidic organism-on-a-chip devices, and also include molecular modelling, chemoinformatics and QSAR analysis, and the use of stem cells, tissue engineering and hollow fibre bioreactors. This has been facilitated by the wider availability of human tissues, advances in tissue culture, analytical and diagnostic methods, increases in computational processing, capabilities, and a greater understanding of cell biology and molecular mechanisms of toxicity. These technological developments have enhanced the range and information content of the toxicity endpoints detected, and therefore the relevance of test systems and data interpretation, while new techniques for non-invasive diagnostic imaging and high resolution detection methods have permitted an increased role for human studies. Several key examples of how these technologies are being harnessed to meet 21st century safety assessment challenges are provided, including their deployment in integrated testing schemes in conjunction with kinetic modelling, and in specialized areas, such as inhalation toxicity studies. The History of Alternative Test Methods in Toxicology uses a chronological approach to demonstrate how the use of alternative methods has evolved from their conception as adjuncts to traditional animal toxicity tests to replacements for them. This volume in the History of Toxicology and Environmental Health series explores the history of alternative test development, validation, and use, with an emphasis on humanity and good science, in line with the Three Rs (Replacement, Reduction, Refinement) concept expounded by William Russell and Rex Burch in 1959 in their now-classic volume, The Principles of Humane Experimental Technique. The book describes the historical development of technologies that have influenced the application of alternatives in toxicology and safety testing. These range from single cell monocultures to sophisticated miniaturised and microfluidic organism-on-a-chip devices, and also include molecular modelling, chemoinformatics and QSAR analysis, and the use of stem cells, tissue engineering and hollow fibre bioreactors. This has been facilitated by the wider availability of human tissues, advances in tissue culture, analytical and diagnostic methods, increases in computational processing capabilities, and a greater understanding of cell biology and molecular mechanisms of toxicity. These technological developments have enhanced the range and information content of the toxicity endpoints detected, and therefore the relevance of test systems and data interpretation, while new techniques for non-invasive diagnostic imaging and high resolution detection methods have permitted an increased role for human studies. Several key examples of how these technologies are being harnessed to meet 21st century safety assessment challenges are provided, including their deployment in integrated testing schemes in conjunction with kinetic modelling, and in specialised areas, such as inhalation toxicity studies.

Download or read book A Comprehensive Guide to Toxicology in Nonclinical Drug Development written by Ali S. Faqi and published by Elsevier. This book was released on 2024-02-11 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Comprehensive Guide to Toxicology in Nonclinical Drug Development, Third Edition is a valuable reference providing a complete understanding of all aspects of nonclinical toxicology in pharmaceutical research. This updated edition has been expanded and re-developed covering a wide-range of toxicological issues in small molecules and biologics. Topics include ADME in drug discovery, pharmacokinetics, toxicokinetics, formulations, and genetic toxicology testing. The book has been thoroughly updated throughout to reflect the latest scientific advances and includes new information on antiviral drugs, anti-diabetic drugs, immunotherapy, and a discussion on post-pandemic drug development challenges and opportunities. This is an essential and practical resource for all toxicologists involved in nonclinical testing in industry, academic, and regulatory settings. Provides updated, unique content not covered in one comprehensive resource, including chapters on stem cells, antiviral drugs, anti-diabetic drugs, and immunotherapy Includes the latest international guidelines for nonclinical toxicology in both small and large molecules Incorporates practical examples in order to illustrate day-to-day activities and expectations associated with working in nonclinical toxicology

Download or read book Dermal Absorption and Toxicity Assessment Second Edition written by Michael S. Roberts and published by CRC Press. This book was released on 2008 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: The source Dermal Absorption and Toxicity Assessment supplies a state-of-the-art overview of the dermal absorption process, and is divided into six well organized sections. Written by internationally recognized experts in the field, this Second Edition is a complete revised and updated text, covering the wide range of methods used to assess skin absorption and the various governmental and industrial programs concerned with skin permeation and toxicity. These include alternative in silico, in vitro, and in vivo strategies to conduct studies for regulatory requirements. To make room for this new expanded content, the editors are publishing a concurrent text entitled: Dermatological and Cosmetic Development with a concentration on subjects concerned with dermatological and cosmetic therapies

Download or read book Azodicarbonamide written by R. Cary and published by . This book was released on 1999 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise assessment of the risks to human health posed by exposure to azodicarbonamide, a chemical mainly used as a blowing agent in the rubber and plastics industries. The compound is used in the expansion of a wide range of polymers, including polyvinyl chloride polyolefins and natural and synthetic rubbers. Although no data on environmental levels are available, the report cites limited evidence suggesting rapid biodegradation in soil. Azodicarbonamide released to surface waters is expected to partition to the hydrosphere with no signification sorption to particulates. No data on exposure of the general population could be identified. Concerning kinetics and metabolism, limited animal studies of exposures via inhalation and ingestion indicate that substantial quantities remain unabsorbed and are rapidly eliminated in the faeces. Studies further suggest that most systemic exposure is to the breakdown product, biurea, and not to the parent compound. Toxicity studies conducted in experimental mammals demonstrate low acute toxicity and no irritation of skin, eye, or respiratory tract. Although azodicarbonamide was found to be a mutagen in bacterial systems, the report found no evidence that this effect would occur in vivo. No adequate studies of carcinogenicity and reproductive toxicity in animals or in humans could be identified. Case reports and epidemiological studies in humans have produced abundant evidence that azodicarbonamide can induce asthma, other respiratory symptoms, and skin sensitization in exposed workers. Adverse effects on other systems have not been studied.

Download or read book A Comprehensive Guide to Toxicology in Preclinical Drug Development written by Ali S. Faqi and published by Academic Press. This book was released on 2012-11-02 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Comprehensive Guide to Toxicology in Preclinical Drug Development is designed for toxicologists who need a thorough understanding of the drug development process. This multi-contributed reference will provide a detailed picture of the complex and highly interrelated activities of preclinical toxicology in both small molecules and biologics --

Download or read book Chemical Testing Using New Approach Methodologies NAMs written by Amy J. Clippinger and published by Frontiers Media SA. This book was released on 2022-12-16 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicologic Assessment of Jet Propulsion Fuel 8 written by National Research Council and published by National Academies Press. This book was released on 2003-02-14 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a critical review of toxicologic, epidemiologic, and other relevant data on jet-propulsion fuel 8, a type of fuel in wide use by the U.S. Department of Defense (DOD), and an evaluation of the scientific basis of DOD's interim permissible exposure level of 350 mg/m3

Download or read book Alternatives to Animal Testing written by Hajime Kojima and published by Springer. This book was released on 2018-12-27 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book presents recent advances in the pure sciences that are of significance in the quest for alternatives to the use of animals in research and describes a variety of practical applications of the three key guiding principles for the more ethical use of animals in experiments – replacement, reduction, and refinement, collectively known as the 3Rs. Important examples from across the world of implementation of the 3Rs in the testing of cosmetics, chemicals, pesticides, and biologics, including vaccines, are described, with additional information on relevant regulations. The coverage also encompasses emerging approaches to alternative tests and the 3Rs. The book is based on the most informative contributions delivered at the Asian Congress 2016 on Alternatives and Animal Use in the Life Sciences. It will be of value for those working in R&D, for graduate students, and for educators in various fields, including the pharmaceutical and cosmetic sciences, pharmacology, toxicology, and animal welfare. The free, open access distribution of Alternatives to Animal Testing is enabled by the Creative Commons Attribution license in International version 4: CC BY 4.0.

Download or read book Biomaterials for Oral and Dental Tissue Engineering written by Lobat Tayebi and published by Woodhead Publishing. This book was released on 2017-07-28 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomaterials for Oral and Dental Tissue Engineering examines the combined impact of materials, advanced techniques and applications of engineered oral tissues. With a strong focus on hard and soft intraoral tissues, the book looks at how biomaterials can be manipulated and engineered to create functional oral tissue for use in restorative dentistry, periodontics, endodontics and prosthodontics. Covering the current knowledge of material production, evaluation, challenges, applications and future trends, this book is a valuable resource for materials scientists and researchers in academia and industry. The first set of chapters reviews a wide range of biomaterial classes for oral tissue engineering. Further topics include material characterization, modification, biocompatibility and biotoxicity. Part Two reviews strategies for biomaterial scaffold design, while chapters in parts three and four review soft and hard tissues. Connects materials science with restorative dentistry Focuses on the unique field of intraoral tissues Highlights long-term biocompatibility and toxicity of biomaterials for engineered oral tissues

Download or read book OECD Guidelines for Testing of Chemicals written by Organisation for Economic Co-operation and Development and published by Organisation for Economic Co-operation and Development ; [Montréal : Renouf]. This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: