PMID- 25965908 OWN - NLM STAT- MEDLINE DCOM- 20160129 LR - 20181113 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 10 IP - 5 DP - 2015 TI - Association between Several Persistent Organic Pollutants and Thyroid Hormone Levels in Cord Blood Serum and Bloodspot of the Newborn Infants of Korea. PG - e0125213 LID - 10.1371/journal.pone.0125213 [doi] LID - e0125213 AB - Current knowledge on adverse endocrine disruption effects of persistent organic pollutants (POPs) among newborn infants is limited and often controversial. To investigate the associations between prenatal exposure to major POPs and thyroid hormone levels among newborn infants, both cord serum or maternal serum concentrations of polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and organochlorine pesticides (OCPs) were compared with five thyroid hormones in cord serum of newborn infants as well as TSH in bloodspot collected at 2 day after birth (n=104). Since cord serum thyroid hormones could be affected by those of mothers, thyroid hormone concentrations of the matching mothers at delivery were adjusted. In cord serum, BDE-47, -99, and Sigmachlordane (CHD) showed significant positive associations with cord or bloodspot TSH. At the same time, p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE) and hexachlorbenzene (HCB) showed negative associations with total T3 and total T4 in cord serum, respectively. Maternal exposure to beta-hexachlorhexane (beta-HCH), SigmaCHD, SigmaDDT, or p,p'-DDE were also associated with neonatal thyroid hormones. Although the sample size is small and the thyroid hormone levels of the subjects were within the reference range, our observation supports thyroid disrupting potential of several POPs among newborn infants, at the levels occurring in the general population. Considering the importance of thyroid hormones during gestation and early life stages, health implication of thyroid hormone effects by low level POPs exposure deserves further follow up investigations. FAU - Kim, Sunmi AU - Kim S AD - School of Public Health, Seoul National University, Seoul, Republic of Korea. FAU - Park, Jeongim AU - Park J AD - College of Natural Sciences, Soonchunhyang University, Asan, Chungcheong, Republic of Korea. FAU - Kim, Hai-Joong AU - Kim HJ AD - College of Medicine, Korea University, Seoul, Republic of Korea. FAU - Lee, Jeong Jae AU - Lee JJ AD - College of Medicine, Soonchunhyang University, Seoul, Republic of Korea. FAU - Choi, Gyuyeon AU - Choi G AD - College of Medicine, Soonchunhyang University, Seoul, Republic of Korea. FAU - Choi, Sooran AU - Choi S AD - College of Medicine, Inha University, Incheon, Republic of Korea. FAU - Kim, Sungjoo AU - Kim S AD - College of Medicine, Hallym University, Seoul, Republic of Korea. FAU - Kim, Su Young AU - Kim SY AD - College of Medicine, Jeju National University, Jeju, Republic of Korea. FAU - Moon, Hyo-Bang AU - Moon HB AD - College of Science and Technology, Hanyang University, Ansan, Gyeonggi, Republic of Korea. FAU - Kim, Sungkyoon AU - Kim S AD - School of Public Health, Seoul National University, Seoul, Republic of Korea. FAU - Choi, Kyungho AU - Choi K AD - School of Public Health, Seoul National University, Seoul, Republic of Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150512 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Chlorine Compounds) RN - 0 (Endocrine Disruptors) RN - 0 (Environmental Pollutants) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Pesticides) RN - 0 (Thyroid Hormones) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Adult MH - Chlorine Compounds/blood MH - Endocrine Disruptors/*blood MH - Environmental Pollutants/*blood MH - Female MH - Fetal Blood/*chemistry MH - Halogenated Diphenyl Ethers/blood MH - Humans MH - Infant, Newborn MH - Male MH - Maternal Exposure MH - Maternal-Fetal Exchange MH - Middle Aged MH - Pesticides/blood/chemistry MH - Polychlorinated Biphenyls/blood MH - Pregnancy MH - Republic of Korea MH - Thyroid Hormones/*blood PMC - PMC4429016 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2015/05/13 06:00 MHDA- 2016/01/30 06:00 PMCR- 2015/05/12 CRDT- 2015/05/13 06:00 PHST- 2014/08/28 00:00 [received] PHST- 2015/03/23 00:00 [accepted] PHST- 2015/05/13 06:00 [entrez] PHST- 2015/05/13 06:00 [pubmed] PHST- 2016/01/30 06:00 [medline] PHST- 2015/05/12 00:00 [pmc-release] AID - PONE-D-14-38147 [pii] AID - 10.1371/journal.pone.0125213 [doi] PST - epublish SO - PLoS One. 2015 May 12;10(5):e0125213. doi: 10.1371/journal.pone.0125213. eCollection 2015.