PMID- 34607038 OWN - NLM STAT- MEDLINE DCOM- 20220107 LR - 20220107 IS - 1873-6750 (Electronic) IS - 0160-4120 (Linking) VI - 158 DP - 2022 Jan TI - Use of (Q)SAR genotoxicity predictions and fuzzy multicriteria decision-making for priority ranking of ethoxyquin transformation products. PG - 106875 LID - S0160-4120(21)00500-6 [pii] LID - 10.1016/j.envint.2021.106875 [doi] AB - Ethoxyquin (EQ; 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline) has been used as an antioxidant in feed for pets and food-producing animals, including farmed fish such as Atlantic salmon. In Europe, the authorization for use of EQ as a feed additive was suspended, due to knowledge gaps concerning the presence and toxicity of EQ transformation products (TPs). Recent analytical studies focusing on the detection of EQ TPs in farmed Atlantic salmon feed and fillets reported the detection of a total of 27 EQ TPs, comprising both known and previously not described EQ TPs. We devised and applied an in silico workflow to rank these EQ TPs according to their genotoxic potential and their occurrence data in Atlantic salmon feed and fillet. Ames genotoxicity predictions were obtained applying a suite of five (quantitative) structure-activity relationship ((Q)SAR) tools, namely VEGA, TEST, LAZAR, Derek Nexus and Sarah Nexus. (Q)SAR Ames genotoxicity predictions were aggregated using fuzzy analytic hierarchy process (fAHP) multicriteria decision-making (MCDM). A priority ranking of EQ TPs was performed based on combining both fAHP ranked (Q)SAR predictions and analytical occurrence data. The applied workflow prioritized four newly identified EQ TPs for further investigation of genotoxicity. The fAHP-based prioritization strategy described here, can easily be applied to other toxicity endpoints and groups of chemicals for priority ranking of compounds of most concern for subsequent experimental and mechanistic toxicology analyses. CI - Copyright (c) 2021 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Rasinger, J D AU - Rasinger JD AD - Institute of Marine Research (IMR), Bergen, Norway. Electronic address: jra@hi.no. FAU - Frenzel, F AU - Frenzel F AD - German Federal Institute for Risk Assessment (BfR), Dept. Food Safety, Berlin, Germany. FAU - Braeuning, A AU - Braeuning A AD - German Federal Institute for Risk Assessment (BfR), Dept. Food Safety, Berlin, Germany. FAU - Bernhard, A AU - Bernhard A AD - Institute of Marine Research (IMR), Bergen, Norway. FAU - Ornsrud, R AU - Ornsrud R AD - Institute of Marine Research (IMR), Bergen, Norway. FAU - Merel, S AU - Merel S AD - Institute of Marine Research (IMR), Bergen, Norway; National Research Institute for Agriculture, Food and Environment (INRAE), Lyon-Villeurbanne, France. FAU - Berntssen, M H G AU - Berntssen MHG AD - Institute of Marine Research (IMR), Bergen, Norway. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211001 PL - Netherlands TA - Environ Int JT - Environment international JID - 7807270 RN - 0 (Antioxidants) RN - 9T1410R4OR (Ethoxyquin) SB - IM MH - *Animal Feed/analysis MH - Animals MH - Antioxidants MH - DNA Damage MH - *Ethoxyquin MH - Fishes OTO - NOTNLM OT - Analytic hierarchy process OT - Antioxidants OT - Multicriteria decision-making OT - Mutagenicity OT - Risk assessment OT - Toxicity prediction EDAT- 2021/10/05 06:00 MHDA- 2022/01/08 06:00 CRDT- 2021/10/04 20:17 PHST- 2021/06/03 00:00 [received] PHST- 2021/08/16 00:00 [revised] PHST- 2021/09/08 00:00 [accepted] PHST- 2021/10/05 06:00 [pubmed] PHST- 2022/01/08 06:00 [medline] PHST- 2021/10/04 20:17 [entrez] AID - S0160-4120(21)00500-6 [pii] AID - 10.1016/j.envint.2021.106875 [doi] PST - ppublish SO - Environ Int. 2022 Jan;158:106875. doi: 10.1016/j.envint.2021.106875. Epub 2021 Oct 1.