PMID- 38438022 OWN - NLM STAT- Publisher LR - 20240304 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) DP - 2024 Mar 2 TI - Combined association of urinary volatile organic compounds with chronic bronchitis and emphysema among adults in NHANES 2011-2014: The mediating role of inflammation. PG - 141485 LID - S0045-6535(24)00378-3 [pii] LID - 10.1016/j.chemosphere.2024.141485 [doi] AB - Evidence on the association of volatile organic compounds (VOCs) with chronic bronchitis (CB) and emphysema is spare and defective. To evaluate the relationship between urinary metabolites of VOCs (mVOCs) with CB and emphysema, and to identify the potential mVOC of paramount importance, data from NHANES 2011-2014 waves were utilized. Logistic regression was conducted to estimate the independent association of mVOCs with respiratory outcomes. Least absolute shrinkage and selection operator (LASSO) regression was performed to screen a parsimonious set of CB- and emphysema-relevant mVOCs that were used for further co-exposure analyses of weight quantile sum (WQS) regression and Bayesian kernel machine regression (BKMR). Mediation analysis was employed to detect the mediating role of inflammatory makers in such associations. In single exposure analytic model, nine mVOCs were individually and positively associated with CB, while four mVOCs were with emphysema. In WQS regression, positive association between LASSO selected mVOCs and CB was identified (OR = 1.82, 95% CI: 1.25 to 2.69), and N-acetyl-S-(4-hydroxy-2-butenyl)-l-cysteine (MHBMA3) weighted the highest. Results from BKMR further validated such combined association and the significance of MHBMA3. As for emphysema, significantly positive overall trend of mVOCs was only observed in BKMR model and N-acetyl-S-(N-methylcarbamoyl)-l-cysteine (AMCC) contributed most to the mixed effect. White blood cell count (WBC) and lymphocyte number (LYM) were mediators in the positive pattern of mVOCs mixture with CB, while association between mVOCs mixture and emphysema was significantly mediated by LYM and segmented neutrophils num (NEO). This study demonstrated that exposure to VOCs was associated with CB and emphysema independently and combinedly, which might be partly speculated that VOCs were linked to activated inflammations. Our findings shed novel light on VOCs related respiratory illness, and provide a new basis for the contribution of certain VOCs to the risk of CB and emphysema, which has potential public health implications. CI - Copyright (c) 2024. Published by Elsevier Ltd. FAU - Wang, Yucheng AU - Wang Y AD - Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China. FAU - Yu, Yongquan AU - Yu Y AD - Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China. FAU - Zhang, Xiaoxuan AU - Zhang X AD - Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China. FAU - Zhang, Hu AU - Zhang H AD - Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China. FAU - Zhang, Ying AU - Zhang Y AD - Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China. FAU - Wang, Shizhi AU - Wang S AD - Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China. FAU - Yin, Lihong AU - Yin L AD - Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China. Electronic address: lhyin@seu.edu.cn. LA - eng PT - Journal Article DEP - 20240302 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 SB - IM OTO - NOTNLM OT - Chronic bronchitis OT - Emphysema OT - Mediation OT - Mixed exposure OT - Volatile organic compounds COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2024/03/05 00:45 MHDA- 2024/03/05 00:45 CRDT- 2024/03/04 19:14 PHST- 2023/05/10 00:00 [received] PHST- 2024/01/26 00:00 [revised] PHST- 2024/02/15 00:00 [accepted] PHST- 2024/03/05 00:45 [medline] PHST- 2024/03/05 00:45 [pubmed] PHST- 2024/03/04 19:14 [entrez] AID - S0045-6535(24)00378-3 [pii] AID - 10.1016/j.chemosphere.2024.141485 [doi] PST - aheadofprint SO - Chemosphere. 2024 Mar 2:141485. doi: 10.1016/j.chemosphere.2024.141485.