PMID- 33905705 OWN - NLM STAT- MEDLINE DCOM- 20210630 LR - 20210630 IS - 1096-0953 (Electronic) IS - 0013-9351 (Linking) VI - 197 DP - 2021 Jun TI - Chemical constituents and sources of indoor PM(2.5) and cardiopulmonary function in patients with chronic obstructive pulmonary disease: Estimation of individual and joint effects. PG - 111191 LID - S0013-9351(21)00485-0 [pii] LID - 10.1016/j.envres.2021.111191 [doi] AB - BACKGROUND: The cardiopulmonary effects of chemical constituents and sources of indoor fine particulate matter (PM(2.5)) remain unclear. OBJECTIVES: To examine the individual and joint effects of constituents of indoor PM(2.5) on cardiopulmonary function of patients with chronic obstructive pulmonary disease (COPD) and the role of identified sources. METHODS: This panel study recruited 43 stable COPD patients from November 2015 to May 2016 in Beijing, China. Daily indoor and outdoor PM(2.5) were collected for five consecutive days simultaneously. Twenty-four elements were measured and principal component analysis was used for source appointment. Pulmonary function and blood pressure (BP) were also measured at daily visit. The linear mixed-effect models were used to estimate the effect of each constituent and source. Bayesian kernel machine regression (BKMR) models were used to estimate the overall effect of all measured constituents. RESULTS: The combustion, indoor soil/dust and road dust sources were identified as the main sources of indoor PM(2.5) and combustion sources contributed over 40% during the heating season. Most constituents were significantly associated with elevated BP of COPD patients and the joint effects of mixed exposures were also significant especially during the heating season. Most associations of chemical constituents with pulmonary function were negative but not statistically significant during the heating season, as was the joint effect. Few associations were observed during the non-heating season. Further, we observed combustion sources throughout the study period and road dust sources during the heating season were significantly associated with increased BP but not decreased pulmonary function. CONCLUSION: The combustion and road dust sources and their related constituents of indoor PM(2.5) could cause adverse effects on cardiovascular function of COPD patients especially during the heating season, but the effect on pulmonary function still needs to be further studied. CI - Copyright (c) 2021 Elsevier Inc. All rights reserved. FAU - Zhang, Wenlou AU - Zhang W AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. FAU - Li, Hongyu AU - Li H AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. FAU - Pan, Lu AU - Pan L AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. FAU - Xu, Junhui AU - Xu J AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. FAU - Yang, Xuan AU - Yang X AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. FAU - Dong, Wei AU - Dong W AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. FAU - Shan, Jiao AU - Shan J AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. FAU - Wu, Shaowei AU - Wu S AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Xi'an Jiaotong University, Xi'an, China. FAU - Deng, Furong AU - Deng F AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. Electronic address: lotus321321@126.com. FAU - Chen, Yahong AU - Chen Y AD - Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China. Electronic address: chenyahong@vip.sina.com. FAU - Guo, Xinbiao AU - Guo X AD - Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210424 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - 0 (Air Pollutants) RN - 0 (Particulate Matter) SB - IM MH - *Air Pollutants/analysis/toxicity MH - *Air Pollution, Indoor/adverse effects/analysis MH - Bayes Theorem MH - Beijing MH - China MH - Environmental Monitoring MH - Humans MH - Particulate Matter/analysis/toxicity MH - *Pulmonary Disease, Chronic Obstructive/chemically induced OTO - NOTNLM OT - Cardiopulmonary function OT - Chemical constituents OT - Chronic obstructive pulmonary disease OT - Indoor air OT - Particulate matter EDAT- 2021/04/28 06:00 MHDA- 2021/07/01 06:00 CRDT- 2021/04/27 20:09 PHST- 2021/02/15 00:00 [received] PHST- 2021/04/08 00:00 [revised] PHST- 2021/04/13 00:00 [accepted] PHST- 2021/04/28 06:00 [pubmed] PHST- 2021/07/01 06:00 [medline] PHST- 2021/04/27 20:09 [entrez] AID - S0013-9351(21)00485-0 [pii] AID - 10.1016/j.envres.2021.111191 [doi] PST - ppublish SO - Environ Res. 2021 Jun;197:111191. doi: 10.1016/j.envres.2021.111191. Epub 2021 Apr 24.