Abstract
Mechanistic information has been used for many years to inform chemical hazard and risk assessments. NRC reports and several agency strategic plans in recent years promote the large-scale use of mechanistic information, organized in the form of pathways at different levels of biological organization as a basis to underpin a dramatic change in the way chemical assessment is performed. As a result, there now exist international collaborations to develop the data and knowledge bases, guidance and principles for development and use of “Adverse Outcome Pathways” (AOPs). Many of the principles for developing and using pathways are based on experience with Mode of Action frameworks for human health risk assessment. Expert groups within the Organization for Economic Cooperation and Development (OECD) are publishing guidance and partnering with the US EPA and European Commissions Joint Research Centre (JRC) to develop a public knowledge base for building AOPs on a large scale. Although this direction is fairly new, there are many pathways already in development. In addition, pathway-based approaches are increasingly being applied to a variety of assessments of hazard in a number of sectors. This chapter describes the genesis of the AOP concept, the development of the necessary tools based on international collaborations, and provides some examples of the use of AOPs in human health risk assessment.
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Notes
- 1.
- 2.
- 3.
European Commission Directive 76/768/EEC covering regulation of cosmetics as amended by Directive 2003/15/EC introducing a test ban from 2004 and sales ban from 2009, later postponed until 2013. http://ec.europa.eu/growth/sectors/cosmetics/index_en.htm
- 4.
Testing ban in force from May 2014: Drugs & Cosmetics Act, Rule 148-C; sales ban in force from October 2014: Drugs & Cosmetics Act, Rule 135-B (import ban).
- 5.
Testing ban in force since Jan 2013: Amendment to the Animal Experimentation Law; Sales ban in force since Jan 2015: Draft Pharmacists’ Regulations (Cosmetics) 2012–5773.
- 6.
Act relating to cosmetic products and body care products, etc. 2005: http://app.uio.no/ub/ujur/oversatte-lover/data/lov-20051221-126-eng.pdf, see also http://www.mattilsynet.no/language/english/cosmetics/import_of_cosmetics_to_norway/importing_cosmetics_to_norway.8321
- 7.
New Zealand: Animal Welfare Legislation Recognizes Animals as Sentient, Bans Cosmetic Testing: http://www.loc.gov/lawweb/servlet/lloc_news?disp3_l205404408_text
- 8.
E.g. Framework Programme 6 projects ACuteTox, Sens-it-iv, Re-Pro-Tect; Framework Programme 7 projects SEURAT-1).
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Willett, C., Fitzpatrick, S., Meek, B., Westmoreland, C. (2018). Use of Adverse Outcome Pathways in Human Risk Assessment and Toxicology. In: Garcia-Reyero, N., Murphy, C. (eds) A Systems Biology Approach to Advancing Adverse Outcome Pathways for Risk Assessment. Springer, Cham. https://doi.org/10.1007/978-3-319-66084-4_17
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