PMID- 29492303 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240315 IS - 2058-5888 (Print) IS - 2058-5888 (Electronic) IS - 2058-5888 (Linking) VI - 3 IP - 1 DP - 2017 Jan TI - Association between DNA methylation profiles in leukocytes and serum levels of persistent organic pollutants in Dutch men. PG - dvx001 LID - 10.1093/eep/dvx001 [doi] LID - dvx001 AB - Consumption of polluted fish may lead to high levels of persistent organic pollutants (POPs) in humans, potentially causing adverse health effects. Altered DNA methylation has been suggested as a possible contributor to a variety of adverse health effects. The aim of this study was to evaluate the relationship between serum POP levels (dioxins, polychlorobiphenyls, and perfluoroctane sulphonate) and DNA methylation. We recruited a total of 80 Dutch men who regularly consumed eel from either low- or high-polluted areas, and subsequently had normal or elevated POP levels. Clinical parameters related to e.g. hormone levels and liver enzymes were measured as biomarkers for adverse health effects. The Infinium 450K BeadChip was used to assess DNA methylation in a representative subset of 34 men. We identified multiple genes with differentially methylated regions (DMRs; false discovery rate <0.05) related to POP levels. Several of these genes are involved in carcinogenesis (e.g. BRCA1, MAGEE2, HOXA5), the immune system (e.g. RNF39, HLA-DQB1), retinol homeostasis (DHRS4L2), or in metabolism (CYP1A1). The DMRs in these genes show mean methylation differences up to 7.4% when comparing low- and high-exposed men, with a mean difference up to 14.4% for single positions within a DMR. Clinical parameters were not significantly associated with serum POP levels. This is the first explorative study investigating extensive DNA methylation in relation to serum POP levels among men. We observed that elevated POP levels are associated with aberrant DNA methylation profiles in adult men who consumed high-polluted eel. These preliminary findings warrant further confirmation in other populations. FAU - van den Dungen, Myrthe W AU - van den Dungen MW AD - Division of Human Nutrition, Stippeneng 4, 6708 WE, Wageningen, Wageningen University, The Netherlands. AD - Marine Animal Ecology Group, De Elst 1, 6708 WD, Wageningen, Wageningen University, The Netherlands. FAU - Murk, Albertinka J AU - Murk AJ AD - Marine Animal Ecology Group, De Elst 1, 6708 WD, Wageningen, Wageningen University, The Netherlands. FAU - Kampman, Ellen AU - Kampman E AD - Division of Human Nutrition, Stippeneng 4, 6708 WE, Wageningen, Wageningen University, The Netherlands. FAU - Steegenga, Wilma T AU - Steegenga WT AD - Division of Human Nutrition, Stippeneng 4, 6708 WE, Wageningen, Wageningen University, The Netherlands. FAU - Kok, Dieuwertje E AU - Kok DE AD - Division of Human Nutrition, Stippeneng 4, 6708 WE, Wageningen, Wageningen University, The Netherlands. LA - eng PT - Journal Article DEP - 20170227 PL - England TA - Environ Epigenet JT - Environmental epigenetics JID - 101675941 PMC - PMC5804541 OTO - NOTNLM OT - DNA methylation OT - Illumina 450K BeadChip OT - PCBs OT - PFOS OT - dioxins OT - persistent organic pollutants EDAT- 2018/03/02 06:00 MHDA- 2018/03/02 06:01 PMCR- 2017/02/27 CRDT- 2018/03/02 06:00 PHST- 2016/10/16 00:00 [received] PHST- 2017/01/07 00:00 [revised] PHST- 2017/01/17 00:00 [accepted] PHST- 2018/03/02 06:00 [entrez] PHST- 2018/03/02 06:00 [pubmed] PHST- 2018/03/02 06:01 [medline] PHST- 2017/02/27 00:00 [pmc-release] AID - dvx001 [pii] AID - 10.1093/eep/dvx001 [doi] PST - epublish SO - Environ Epigenet. 2017 Feb 27;3(1):dvx001. doi: 10.1093/eep/dvx001. eCollection 2017 Jan.