Application of the Margin of Exposure (MOE) approach to substances in food that are genotoxic and carcinogenic

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• 作者：Diane Benford ; P. Michael Bolger ; Philip Carthew ; Myriam Coulet ; Michael DiNovi ; Jean-Charles Leblanc ; Andrew G. Renwick ; Woodrow Setzer ; Josef Schlatter ; Benjamin Smith ; Wout Slob ; Gary Williams ; Tan
• 关键词：Margin of Exposure ; MoE ; Genotoxic ; Carcinogens ; Modelling ; Exposure
• 刊名：Food and Chemical Toxicology
• 出版年：2010
• 出版时间：January 2010
• 年：2010
• 卷：48
• 期：Supplement 1
• 页码：S2-S24
• 全文大小：588 K

文摘

This paper presents the work of an expert group established by the International Life Sciences Institute – European branch (ILSI Europe) to follow up the recommendations of an international conference on “Risk Assessment of Compounds that are both Genotoxic and Carcinogenic: New Approaches”. Twelve genotoxic and carcinogenic chemicals that can be present in food were selected for calculation of a Margin of Exposure (MOE) between a point of departure on the dose–response for oral carcinogenicity in animal studies and estimates of human dietary exposure. The MOE can be used to support prioritisation of risk management action and, if the MOE is very large, on communication of a low level of human health concern. Depending on the approaches taken in determining the point of departure and the estimation of exposure, it is possible to derive very different values for the MOE. It is therefore essential that the selection of the cancer endpoint and mathematical treatment of the data are clearly described and justified if the results of the MOE approach are to be trusted and of value to risk managers. An outline framework for calculating an MOE is proposed in order to help to ensure transparency in the results.