PMID- 28119248 OWN - NLM STAT- MEDLINE DCOM- 20170509 LR - 20171210 IS - 1096-0953 (Electronic) IS - 0013-9351 (Linking) VI - 154 DP - 2017 Apr TI - Concentrations of vitamin A, E, thyroid and testosterone hormones in blood plasma and tissues from emaciated adult male Arctic foxes (Vulpes lagopus) dietary exposed to persistent organic pollutants (POPs). PG - 284-290 LID - S0013-9351(16)31205-1 [pii] LID - 10.1016/j.envres.2017.01.017 [doi] AB - The aim of the present study was to investigate the relationships and effects of oral POP exposure on retinol (vitamin A), alpha-tocopherol (vitamin E), thyroid hormones and testosterone in emaciated adult farmed Arctic foxes. Eight brother-pairs were exposed to either a diet containing naturally POP-contaminated minke whale blubber (Balaenoptera acutorostrata) (n=8), or a control diet containing pig (Sus scrofa) fat as the primary fat source (n=8) for 22 months. In the whale blubber containing feed the summation operatorPOPs concentration was 802ng/g w.w. and it was 24ng/g w.w. in control feed. The liver mass was significantly higher and the ratio of FT4 (free thyroxine):FT3 (free triiodothyronine) was significantly lower in the POP exposed group as compared to the control group given feed with pig fat (both p<0.05). The exposed group revealed lower plasma and liver concentrations of alpha-tocopherol compared to the control group (both p<0.05). These results indicate that plasma FT4:FT3 ratio and plasma and liver alpha-tocopherol are valuable biomarker endpoints for chronic oral POP exposure in wild Arctic foxes. Based on this we suggest that plasma FT4:FT3 ratio and plasma and liver alpha-tocopherol are valuable biomarker endpoints for chronic POP exposure in wildlife Arctic foxes and that these perturbations may affect their health status. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Rogstad, Tonje W AU - Rogstad TW AD - Department of Biology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway. FAU - Sonne, Christian AU - Sonne C AD - Aarhus University, Faculty of Science and Technology, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark. Electronic address: cs@bios.au.dk. FAU - Villanger, Gro D AU - Villanger GD AD - Department of Biology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway; Mental and Physical Health, Department of Child Health, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0473 Oslo, Norway. FAU - Ahlstom, Oystein AU - Ahlstom O AD - Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, N-1432 As, Norway. FAU - Fuglei, Eva AU - Fuglei E AD - Norwegian Polar Institute, FRAM Centre, NO-9296 Tromso, Norway. FAU - Muir, Derek C G AU - Muir DCG AD - National Water Research Institute, Environment Canada, Burlington, Ontario, Canada L7R 4A6. FAU - Jorgensen, Even AU - Jorgensen E AD - Department of Arctic and Marine Biology, UiT the Arctic University of Norway, N-9037 Tromso, Norway. FAU - Jenssen, Bjorn Munro AU - Jenssen BM AD - Department of Biology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway. LA - eng PT - Comparative Study PT - Journal Article DEP - 20170122 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - 0 (Biomarkers) RN - 0 (Environmental Pollutants) RN - 0 (Thyroid Hormones) RN - 11103-57-4 (Vitamin A) RN - 1406-18-4 (Vitamin E) RN - 3XMK78S47O (Testosterone) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Adipose Tissue/chemistry MH - Animals MH - Animals, Wild/blood MH - Arctic Regions MH - Biomarkers/blood MH - Diet/adverse effects MH - Emaciation/chemically induced MH - Environmental Exposure/adverse effects MH - Environmental Pollutants/*adverse effects/analysis MH - Foxes/blood MH - Liver/*chemistry MH - Male MH - Polychlorinated Biphenyls/*adverse effects/analysis MH - Swine MH - Testosterone/*blood MH - Thyroid Hormones/*blood MH - Vitamin A/*blood MH - Vitamin E/*blood MH - Whales OTO - NOTNLM OT - Arctic, Endocrine disruption OT - Health effects, Oxidative stress OT - Pollution, Top predator EDAT- 2017/01/26 06:00 MHDA- 2017/05/10 06:00 CRDT- 2017/01/26 06:00 PHST- 2016/12/07 00:00 [received] PHST- 2017/01/12 00:00 [revised] PHST- 2017/01/13 00:00 [accepted] PHST- 2017/01/26 06:00 [pubmed] PHST- 2017/05/10 06:00 [medline] PHST- 2017/01/26 06:00 [entrez] AID - S0013-9351(16)31205-1 [pii] AID - 10.1016/j.envres.2017.01.017 [doi] PST - ppublish SO - Environ Res. 2017 Apr;154:284-290. doi: 10.1016/j.envres.2017.01.017. Epub 2017 Jan 22.