PMID- 28672131 OWN - NLM STAT- MEDLINE DCOM- 20170828 LR - 20181202 IS - 1096-0953 (Electronic) IS - 0013-9351 (Linking) VI - 158 DP - 2017 Oct TI - Association between serum persistent organic pollutants and DNA methylation in Korean adults. PG - 333-341 LID - S0013-9351(17)30181-0 [pii] LID - 10.1016/j.envres.2017.06.017 [doi] AB - BACKGROUND: Exposure to persistent organic pollutants (POPs) has been associated with epigenetic changes such as DNA methylation, which can influence human health. However, the association between POPs and DNA methylation by sex was not shown in previous studies. OBJECTIVES: We investigated the association between POPs and DNA methylation in men and women using a larger population. METHODS: A cross-sectional study was conducted using the data of 444 Koreans (253 men and 191 women). Measurements for sixteen different POPs, including six organochlorine pesticides (OCPs) and ten polychlorinated biphenyls (PCBs) were taken in serum. DNA methylation via Alu and LINE-1 in peripheral leukocytes was measured by pyrosequencing. To evaluate the association between POPs and DNA methylation, the Pearson's correlation and multiple linear regression analyses were performed. RESULTS: Except for PCB52 and PCB101, we found significant inverse associations between p,p'-DDE, cis-Heptachlor epoxide, and PCBs and Alu assay in men after adjusting for age, BMI, smoking status, and alcohol consumption (beta = -0.67 for p,p'-DDE; -0.28 for cis-Heptachlor epoxide; in the range from -0.43 to -1.60 for PCBs). In women, PCB153 and PCB180 showed statistically significant inverse association with Alu assay (beta = -0.22 for PCB153; -0.22 for PCB180). Except for PCB101, p,p'-DDE and PCBs were positively associated with LINE-1 assay in women (beta = 0.48 for p,p'-DDE; in the range from 0.40-0.89 for PCBs) while p,p'-DDE, PCB153, and PCB180 showed positive associations with LINE-1 assay in men (beta = 0.55 for p,p'-DDE; 0.65 for PCB153; 1.02 for PCB180). CONCLUSIONS: We found that several POPs were associated with global DNA hypomethylation in the Alu assay for men and global DNA hypermethylation in the LINE-1 assay for women. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Lee, Mi Hwa AU - Lee MH AD - Institute for Health and Society, Hanyang University, Seoul, Republic of Korea. FAU - Cho, Eo Rin AU - Cho ER AD - Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea. FAU - Lim, Jung-Eun AU - Lim JE AD - Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea; College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea. FAU - Jee, Sun Ha AU - Jee SH AD - Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea. Electronic address: jsunha@yuhs.ac. LA - eng PT - Journal Article DEP - 20170630 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - 0 (Environmental Pollutants) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Adult MH - Aged MH - Cities MH - Cross-Sectional Studies MH - *DNA Methylation MH - Environmental Pollutants/*blood MH - Female MH - Humans MH - Hydrocarbons, Chlorinated/*blood MH - Male MH - Middle Aged MH - Pesticides/*blood MH - Polychlorinated Biphenyls/*blood MH - Regression Analysis MH - Republic of Korea MH - Seoul MH - Sex Factors MH - Young Adult OTO - NOTNLM OT - Alu OT - DNA methylation OT - Epigenetics OT - LINE-1 OT - Persistent organic pollutants (POPs) EDAT- 2017/07/04 06:00 MHDA- 2017/08/29 06:00 CRDT- 2017/07/04 06:00 PHST- 2017/01/30 00:00 [received] PHST- 2017/06/17 00:00 [revised] PHST- 2017/06/19 00:00 [accepted] PHST- 2017/07/04 06:00 [pubmed] PHST- 2017/08/29 06:00 [medline] PHST- 2017/07/04 06:00 [entrez] AID - S0013-9351(17)30181-0 [pii] AID - 10.1016/j.envres.2017.06.017 [doi] PST - ppublish SO - Environ Res. 2017 Oct;158:333-341. doi: 10.1016/j.envres.2017.06.017. Epub 2017 Jun 30.