PMID- 37918745 OWN - NLM STAT- MEDLINE DCOM- 20231127 LR - 20231127 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 908 DP - 2024 Jan 15 TI - The relationship of organophosphate flame retardants with hyperuricemia and gout via the inflammatory response: An integrated approach. PG - 168169 LID - S0048-9697(23)06796-7 [pii] LID - 10.1016/j.scitotenv.2023.168169 [doi] AB - BACKGROUND: Evidence regarding the relationships between organophosphate flame retardants (OPFRs) and hyperuricemia and gout as well as the underlying mechanisms remains scarce, but some evidence indicates that inflammation might play a key role. OBJECTIVES: Using an integrated approach, we aim to elucidate the associations of urinary metabolite OPFRs (m-OPFRs) with hyperuricemia and gout. METHODS: Cross-sectional analyses using data from the National Health and Nutrition Examination Survey were performed to reveal the associations. Adults with complete data on five m-OPFRs with high detection frequencies and outcomes were enrolled. We used multivariate logistic regression, restricted cubic spline (RCS), and Bayesian kernel machine regression (BKMR) methods to account for single, nonlinear, and joint effects. The mediating effect of the inflammatory response was also estimated. Moreover, adverse outcome pathways (AOPs) based on network analysis were further constructed to reveal the underlying mechanism. RESULTS: Multivariate logistic models revealed that bis(2-chloroethyl) phosphate (BCEP) significantly increased risk of hyperuricemia (OR [95 % CI]: 1.165 [1.047, 1.296]) in the fully adjusted model. Elevated levels of bis(1-chloro-2-propyl) phosphate were associated with gout (OR [95 % CI]: 1.293 [1.015, 1.647]). No nonlinear relationship was observed in RCS. There was a positive association between mixed m-OPFRs and hyperuricemia risk in BMKR, with bis(1,3-dichloro-2-propyl) phosphate and BCEP being the main contributors (PIP > 0.5). We found that the inflammatory response significantly mediated the association between BCEP and hyperuricemia (P < 0.05). Network topology analysis identified seven genes and six phenotypes related to OPFR exposure and hyperuricemia. The AOP framework suggested that the inflammatory response, especially the activation of the TNF pathway, played a core role in the above relationships. CONCLUSION: Our results first revealed that individual and mixed OPFRs were associated with hyperuricemia, in which the inflammatory response plays an important role. Further longitudinal studies are warranted to consolidate or refute our main findings. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Tan, Yuxuan AU - Tan Y AD - Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou 510632, Guangdong, PR China. FAU - Fu, Yingyin AU - Fu Y AD - Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou 510632, Guangdong, PR China. FAU - Yao, Huojie AU - Yao H AD - Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou 510632, Guangdong, PR China. FAU - Li, Haiying AU - Li H AD - Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou 510632, Guangdong, PR China. FAU - Wu, Xiaomei AU - Wu X AD - Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou 510632, Guangdong, PR China. FAU - Guo, Ziang AU - Guo Z AD - Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou 510632, Guangdong, PR China. FAU - Liang, Xiao AU - Liang X AD - Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou 510632, Guangdong, PR China. FAU - Kuang, Mincong AU - Kuang M AD - Center for Disease Control and Prevention of Doumen District, Zhuhai 519125, Guangdong, PR China. FAU - Tan, Lei AU - Tan L AD - Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, Guangdong, PR China. FAU - Jing, Chunxia AU - Jing C AD - Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou 510632, Guangdong, PR China; Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, PR China. Electronic address: jcxphd@gmail.com. LA - eng PT - Journal Article DEP - 20231031 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Organophosphates) RN - 0 (Flame Retardants) RN - 0 (Phosphates) SB - IM MH - Adult MH - Humans MH - Organophosphates/metabolism MH - *Flame Retardants/analysis MH - *Hyperuricemia/chemically induced/epidemiology MH - Nutrition Surveys MH - Cross-Sectional Studies MH - Bayes Theorem MH - Phosphates MH - *Gout/chemically induced/epidemiology OTO - NOTNLM OT - Adverse outcome pathway OT - Co-exposure OT - Hyperuricemia OT - Inflammation response OT - Organophosphate flame retardants COIS- Declaration of competing interest The authors declare no competing interests. EDAT- 2023/11/03 00:42 MHDA- 2023/11/27 12:42 CRDT- 2023/11/02 20:19 PHST- 2023/09/07 00:00 [received] PHST- 2023/10/23 00:00 [revised] PHST- 2023/10/26 00:00 [accepted] PHST- 2023/11/27 12:42 [medline] PHST- 2023/11/03 00:42 [pubmed] PHST- 2023/11/02 20:19 [entrez] AID - S0048-9697(23)06796-7 [pii] AID - 10.1016/j.scitotenv.2023.168169 [doi] PST - ppublish SO - Sci Total Environ. 2024 Jan 15;908:168169. doi: 10.1016/j.scitotenv.2023.168169. Epub 2023 Oct 31.