PMID- 37939783 OWN - NLM STAT- Publisher LR - 20240404 IS - 1369-1619 (Electronic) IS - 0960-3123 (Linking) DP - 2023 Nov 8 TI - Long-term exposure to PM(2.5) compositions and O(3) and their interactive effects on DNA methylation of peripheral brain-derived neurotrophic factor promoter. PG - 1-12 LID - 10.1080/09603123.2023.2280157 [doi] AB - This study examined the associations of long-term exposure to ambient fine particulate matter (PM(2.5)) compositions/ozone with methylation of peripheral brain-derived neurotrophic factor (BDNF) promoters. A total of 101 participants were recruited from a cohort in Shijiazhuang, Hebei province, China. They underwent baseline and follow-up surveys in 2011 and 2015. DNA methylation levels were detected by bisulfite-PCR amplification and pyrosequencing. Participants' three-year average levels of PM(2.5) compositions and ozone were estimated. Bayesian kernel machine regression (BKMR) models were used to examine the joint effects of pollutants on methylation levels. Exposure to PM(2.5) compositions and ozone mixtures at the 75th percentile was associated with increased methylation levels at CpG2 of BDNF promoter (203%, 95% CI: 89, 316) than the lowest level of exposure, and sulfate dominated the effect in the BKMR models.Our findings provide clues to the epigenetic mechanisms for the associations of PM(2.5) compositions and ozone with BDNF. FAU - Huang, Haoyu AU - Huang H AD - Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China. FAU - Xie, Bing AU - Xie B AD - College of Forensic Medicine, Hebei Medical University, Shijiazhuang, China. AD - Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, China. FAU - Liu, Yuewei AU - Liu Y AD - Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China. FAU - Dong, Guang-Hui AU - Dong GH AD - Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China. FAU - Liu, Ruqing AU - Liu R AD - Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China. FAU - Gui, Zhaohuan AU - Gui Z AD - Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China. FAU - Chen, Lijun AU - Chen L AD - College of Information Engineering, Hubei University of Chinese Medicine, Wuhan, China. FAU - Li, Shanshan AU - Li S AD - Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia. FAU - Guo, Yuming AU - Guo Y AD - Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia. FAU - Yang, Lei AU - Yang L AD - Department of Epidemiology and Biostatistics, School of Public Health, Hebei Key Laboratory of Environment and Human Health, Hebei Medical University, Shijiazhuang, China. FAU - Chen, Gongbo AU - Chen G AD - Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia. LA - eng PT - Journal Article DEP - 20231108 PL - England TA - Int J Environ Health Res JT - International journal of environmental health research JID - 9106628 SB - IM OTO - NOTNLM OT - BDNF promoter OT - DNA methylation OT - Particulate matter OT - ozone OT - sulfate EDAT- 2023/11/09 00:42 MHDA- 2023/11/09 00:42 CRDT- 2023/11/08 19:13 PHST- 2023/11/09 00:42 [pubmed] PHST- 2023/11/09 00:42 [medline] PHST- 2023/11/08 19:13 [entrez] AID - 10.1080/09603123.2023.2280157 [doi] PST - aheadofprint SO - Int J Environ Health Res. 2023 Nov 8:1-12. doi: 10.1080/09603123.2023.2280157.