PMID- 33345897 OWN - NLM STAT- MEDLINE DCOM- 20210421 LR - 20210421 IS - 1096-0953 (Electronic) IS - 0013-9351 (Linking) VI - 194 DP - 2021 Mar TI - Associations of dermal diethyl phthalate level with changes in lung function test value mediated by absolute eosinophil count: A panel study of adults in southern Taiwan. PG - 110613 LID - S0013-9351(20)31510-3 [pii] LID - 10.1016/j.envres.2020.110613 [doi] AB - Phthalate concentrations in indoor and outdoor dust are associated with respiratory disease. Both immunoglobulin E (IgE) and eosinophil count are associated with airway inflammation from exposure to environmental allergens. Dermal phthalate level can be used as a matrix for assessing personal exposure through direct absorption from the air, particle deposition, or contact with contaminated products. However, the association between dermal phthalate level and changes in lung function test values, as mediated by immunological response, remains unclear. In total, 237 adults in southern Taiwan were recruited. Spirometry measurements (in L) of forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) were taken on visits 1 (2016-2018) and 2 (2019). Dermal phthalate level, absolute eosinophil count, and IgE level were recorded on visit 1. Mean changes in FVC and FEV1 decrease pear year, as determined through pairwise comparisons, were significant ((diff)FVC(per year): -0.46, 95% CI: -0.51, -0.41; p < 0.001; (diff)FEV1(per year): -0.37, 95% confidence interval [CI]: -0.41, -0.34; p < 0.001). For FEV1 decrease, log-unit increases in dermal diethyl phthalate (DEP) were positively associated with (diff)FEV1(per year) (beta = 0.096; 95% CI: 0.042, 0.150; p = 0.001) and negatively associated with absolute eosinophil count (beta= -0.201; 95% CI: -0.380, -0.023; p= 0.027). Log-unit increases in absolute eosinophil count were negatively associated with (diff)FEV1(per year) (beta= -0.109; 95% CI: -0.150, -0.068; p < 0.001). Absolute eosinophil count mediated 19.70% of the association between dermal DEP level and (diff)FEV1(per year). For FVC decrease, log-unit increases in dermal DEP were positively associated with (diff)FVC(per year) (beta = 0.095; 95% CI: 0.035, 0.155; p = 0.002) and negatively associated with absolute eosinophil count (beta = -0.243; 95% CI: -0.427, -0.060; p = 0.010). Log-unit increases in absolute eosinophil count were negatively associated with (diff)FVC(per year) (beta= -0.122; 95% CI: -0.168, -0.076; p < 0.001). Absolute eosinophil count mediated 29.98% of the association between dermal DEP level and (diff)FVC(per year). The results suggest that dermal DEP level is positively associated with changes in lung function test values and is mediated by absolute eosinophil count. CI - Copyright (c) 2020 Elsevier Inc. All rights reserved. FAU - Wang, Chih-Wen AU - Wang CW AD - Division of Hepatobiliary, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan. FAU - Wu, Da-Wei AU - Wu DW AD - Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan. FAU - Chen, Szu-Chia AU - Chen SC AD - Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan. Electronic address: scarchenone@yahoo.com.tw. FAU - Chen, Huang-Chi AU - Chen HC AD - Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan. FAU - Lin, Hung-Hsun AU - Lin HH AD - Department of Laboratory Technology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan. FAU - Su, Hung AU - Su H AD - Department of Chemistry, National Sun Yat-Sen University Kaohsiung, Taiwan. FAU - Shiea, Jen-Taie AU - Shiea JT AD - Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Chemistry, National Sun Yat-Sen University Kaohsiung, Taiwan; Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan. FAU - Lin, Wen-Yi AU - Lin WY AD - Department of Occupational Medicine, Health Management Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung City, Taiwan. FAU - Hung, Chih-Hsing AU - Hung CH AD - Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Pediatrics, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan. Electronic address: pedhung@gmail.com. FAU - Kuo, Chao-Hung AU - Kuo CH AD - Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201224 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - 0 (Phthalic Acids) RN - UF064M00AF (diethyl phthalate) SB - IM MH - *Eosinophils MH - Forced Expiratory Volume MH - *Lung MH - Phthalic Acids MH - Respiratory Function Tests MH - Taiwan MH - Vital Capacity OTO - NOTNLM OT - Absolute eosinophil count OT - Dermal phthalate OT - Diethyl phthalate OT - Forced expiratory volume in 1 s OT - Forced vital capacity EDAT- 2020/12/22 06:00 MHDA- 2021/04/22 06:00 CRDT- 2020/12/21 08:44 PHST- 2020/09/01 00:00 [received] PHST- 2020/11/27 00:00 [revised] PHST- 2020/12/05 00:00 [accepted] PHST- 2020/12/22 06:00 [pubmed] PHST- 2021/04/22 06:00 [medline] PHST- 2020/12/21 08:44 [entrez] AID - S0013-9351(20)31510-3 [pii] AID - 10.1016/j.envres.2020.110613 [doi] PST - ppublish SO - Environ Res. 2021 Mar;194:110613. doi: 10.1016/j.envres.2020.110613. Epub 2020 Dec 24.