PMID- 30059991 OWN - NLM STAT- MEDLINE DCOM- 20190325 LR - 20190325 IS - 1945-7170 (Electronic) IS - 0013-7227 (Linking) VI - 159 IP - 10 DP - 2018 Oct 1 TI - Association of In Utero Persistent Organic Pollutant Exposure With Placental Thyroid Hormones. PG - 3473-3481 LID - 10.1210/en.2018-00542 [doi] AB - In utero exposure to persistent organic pollutants (POPs) can result in thyroid function disorder, leading to concerns about their impact on fetal and neonatal development. The associations between placental levels of various POPs and thyroid hormones (THs) were investigated. In a prospective Danish study initially established for assessing congenital cryptorchidism, 58 placenta samples were collected from mothers of boys born with (n = 28) and without (n = 30) cryptorchidism. The concentrations of polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs), organotin chemicals (OTCs), organochlorine pesticides (OCPs), T4, T3, and rT3 were measured. The associations between placental THs and various POPs were analyzed using multiple linear regression. Five PBDEs, 35 PCBs, 14 PCDD/Fs, 3 OTCs, 25 OCPs, T4, T3, and rT3 were measured. No correlation between THs and the odds of cryptorchidism was found. Several POPs were significantly associated with THs: (1) T4 was inversely associated with BDEs 99, 100, SigmaPBDE, and 2378-TeCDD, and positively associated with 1234678-HpCDF; (2) T3 was positively associated with 2378-TeCDF and 12378-PeCDF; and (3) rT3 was positively associated with PCB 81, 12378-PeCDF, and 234678-HxCDF, and inversely associated with tributyltin, SigmaOTC, and methoxychlor. These results revealed that POP exposures were associated with TH levels in placenta, which may be a possible mechanism for the impacts of POP exposures on children's growth and development. This study provides new insight into the complexity of thyroid-disrupting properties of POPs. More research is needed to elucidate the biological consequences of POP exposures. FAU - Li, Zhong-Min AU - Li ZM AD - Helmholtz Zentrum Munchen-German Research Center for Environmental Health, Molecular EXposomics, Neuherberg, Germany. AD - School of Life Sciences Weihenstephan (Nutrition), Technische Universitat Munchen, Freising, Germany. FAU - Hernandez-Moreno, David AU - Hernandez-Moreno D AD - Helmholtz Zentrum Munchen-German Research Center for Environmental Health, Molecular EXposomics, Neuherberg, Germany. FAU - Main, Katharina Maria AU - Main KM AD - Department of Growth and Reproduction, EDMaRC, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark. FAU - Skakkebaek, Niels Erik AU - Skakkebaek NE AD - Department of Growth and Reproduction, EDMaRC, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark. FAU - Kiviranta, Hannu AU - Kiviranta H AD - National Institute for Health and Welfare, Department of Health Security, Kuopio, Finland. FAU - Toppari, Jorma AU - Toppari J AD - Department of Growth and Reproduction, EDMaRC, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark. AD - Institute of Biomedicine, University of Turku, Turku, Finland. AD - Department of Pediatrics, Turku University Hospital, Turku, Finland. FAU - Feldt-Rasmussen, Ulla AU - Feldt-Rasmussen U AD - Department of Medical Endocrinology PE, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark. FAU - Shen, Heqing AU - Shen H AD - Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China. FAU - Schramm, Karl-Werner AU - Schramm KW AD - Helmholtz Zentrum Munchen-German Research Center for Environmental Health, Molecular EXposomics, Neuherberg, Germany. AD - Department fur Biowissenschaftliche Grundlagen, Technische Universitat Munchen, Freising, Germany. FAU - De Angelis, Meri AU - De Angelis M AD - Helmholtz Zentrum Munchen-German Research Center for Environmental Health, Molecular EXposomics, Neuherberg, Germany. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Endocrinology JT - Endocrinology JID - 0375040 RN - 0 (2,2',4,4',5-brominated diphenyl ether) RN - 0 (Environmental Pollutants) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Pesticides) RN - 0 (Thyroid Hormones) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Child MH - Cryptorchidism/diagnosis/etiology MH - Environmental Pollutants/*poisoning MH - Female MH - Halogenated Diphenyl Ethers/poisoning MH - Humans MH - Male MH - Maternal Exposure/*adverse effects MH - Pesticides/poisoning MH - Placenta/*drug effects/metabolism MH - Polychlorinated Biphenyls/poisoning MH - Pregnancy MH - Prospective Studies MH - Thyroid Hormones/*metabolism EDAT- 2018/07/31 06:00 MHDA- 2019/03/26 06:00 CRDT- 2018/07/31 06:00 PHST- 2018/06/04 00:00 [received] PHST- 2018/07/19 00:00 [accepted] PHST- 2018/07/31 06:00 [pubmed] PHST- 2019/03/26 06:00 [medline] PHST- 2018/07/31 06:00 [entrez] AID - 5060453 [pii] AID - 10.1210/en.2018-00542 [doi] PST - ppublish SO - Endocrinology. 2018 Oct 1;159(10):3473-3481. doi: 10.1210/en.2018-00542.