PMID- 35753273 OWN - NLM STAT- MEDLINE DCOM- 20220719 LR - 20220719 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 241 DP - 2022 Aug TI - Global DNA methylation mediates the association between serum perfluorooctane sulfonate and carotid intima-media thickness in young and middle-aged Taiwanese populations. PG - 113782 LID - S0147-6513(22)00622-4 [pii] LID - 10.1016/j.ecoenv.2022.113782 [doi] AB - PURPOSE: Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a group of synthetic chemicals used in the manufacture of many everyday products. Previous reports have shown PFAS exposure may contribute to cardiovascular diseases (CVD). Recent studies have also identified a critical role for DNA methylation, a model of epigenetic regulation, in the pathogenesis of CVD. Additionally, PFAS has been shown to affect DNA methylation. Our previous study reported the positive association between serum perfluorooctane sulfonate (PFOS) levels and mean carotid intima-media thickness (CIMT), a biomarker of arteriosclerosis, in a cohort composed of adolescent and young adult Taiwanese. However, the contribution of DNA methylation in the mechanism of PFOS-induced arteriosclerosis has never been explored in previous literature. APPROACH AND RESULTS: In this cross-sectional study, we included 1425 young and middle-aged Taiwanese individuals (12-63 years) to investigate the correlation between serum PFOS levels, 5mdC/dG (a global DNA methylation marker) and the mean CIMT. We showed that the positive association between serum PFOS levels, 5mdC/dG, and mean CIMT. The regression coefficients of mean CIMT with a one-unit increase in ln-PFOS concentration were higher when the levels of 5mdC/dG were above the 50th percentile in the multiple regression analysis. In the structural equation model (SEM), the results showed that serum PFOS levels were directly correlated with mean CIMT and indirectly correlated with CIMT through 5mdC/dG. CONCLUSIONS: Our results showed that PFOS exposure has direct associations on arteriosclerosis and indirect direct associations on arteriosclerosis through DNA methylation. The results suggest that DNA methylation might regulate the relationship between PFOS and arteriosclerosis in the study subjects. Additional works are required to understand the causal inference between PFOS, DNA methylation, and arteriosclerosis. CI - Copyright (c) 2022 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Lin, Chien-Yu AU - Lin CY AD - Department of Internal Medicine, En Chu Kong Hospital, New Taipei City 237, Taiwan; School of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan; Department of Environmental Engineering and Health, Yuanpei University of Medical Technology, Hsinchu 300, Taiwan. FAU - Lee, Hui-Ling AU - Lee HL AD - Department of Chemistry, Fu Jen Catholic University, New Taipei City 242, Taiwan. FAU - Chen, Ching-Way AU - Chen CW AD - Department of Cardiology, National Taiwan University Hospital Yunlin Branch, Taiwan. FAU - Wang, Chikang AU - Wang C AD - Department of Environmental Engineering and Health, Yuanpei University of Medical Technology, Hsinchu 300, Taiwan. FAU - Sung, Fung-Chang AU - Sung FC AD - Department of Health Services Administration, China Medical University College of Public Health, Taichung 404, Taiwan; Department of Food Nutrition and Health Biotechnology, Asia University, Taichung 413, Taiwan. FAU - Su, Ta-Chen AU - Su TC AD - Department of Environmental and Occupational Medicine, National Taiwan University Hospital, Taipei 100, Taiwan; Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei 100, Taiwan; Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Taipei 100, Taiwan. Electronic address: tachensu@gmail.com. LA - eng PT - Journal Article DEP - 20220623 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 RN - 0 (Alkanesulfonic Acids) RN - 0 (Biomarkers) RN - 0 (Fluorocarbons) RN - 9H2MAI21CL (perfluorooctane sulfonic acid) SB - IM MH - Adolescent MH - *Alkanesulfonic Acids/toxicity MH - Biomarkers MH - *Cardiovascular Diseases MH - Carotid Intima-Media Thickness MH - Cross-Sectional Studies MH - DNA Methylation MH - Epigenesis, Genetic MH - *Fluorocarbons/toxicity MH - Humans MH - Middle Aged MH - Young Adult OTO - NOTNLM OT - 5mdC/dG OT - CIMT (carotid intima-media thickness) OT - Global DNA methylation OT - PFAS (Perfluoroalkyl and polyfluoroalkyl substances) OT - PFOS (perfluorooctane sulfonate) EDAT- 2022/06/27 06:00 MHDA- 2022/07/20 06:00 CRDT- 2022/06/26 18:20 PHST- 2022/04/02 00:00 [received] PHST- 2022/06/14 00:00 [revised] PHST- 2022/06/15 00:00 [accepted] PHST- 2022/06/27 06:00 [pubmed] PHST- 2022/07/20 06:00 [medline] PHST- 2022/06/26 18:20 [entrez] AID - S0147-6513(22)00622-4 [pii] AID - 10.1016/j.ecoenv.2022.113782 [doi] PST - ppublish SO - Ecotoxicol Environ Saf. 2022 Aug;241:113782. doi: 10.1016/j.ecoenv.2022.113782. Epub 2022 Jun 23.