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Li J, Zhou C, Xu H, Brook RD, Liu S, Yi T, Wang Y, Feng B, Zhao M, Wang X, Zhao Q, Chen J, Song X, Wang T, Liu S, Zhang Y, Wu R, Gao J, Pan B, Pennathur S, Rajagopalan S, Huo Y, Zheng L, Huang W. Ambient Air Pollution Is Associated With HDL (High-Density Lipoprotein) Dysfunction in Healthy Adults. Arterioscler Thromb Vasc Biol 2020; 39:513-522. [PMID: 30700134 DOI: 10.1161/atvbaha.118.311749] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Objective- We aimed to assess whether exposure to higher levels of ambient air pollution impairs HDL (high-density lipoprotein) function and to elucidate the underlying biological mechanisms potentially involved. Approach and Results- In the Beijing AIRCHD study (Air Pollution and Cardiovascular Dysfunction in Healthy Adults), 73 healthy adults (23.3±5.4 years) were followed-up with 4 repeated study visits in 2014 to 2016. During each visit, ambient air pollution concentrations, HDL function metrics, and parameters of inflammation and oxidative stress were measured. Average daily concentrations of ambient particulate matter in diameter <2.5 μm were 62.9 µg/m3 (8.1-331.0 µg/m3). We observed significant decreases in HDL cholesterol efflux capacity of 2.3% (95% CI, -4.3 to -0.3) to 5.0% (95% CI, -7.6 to -2.4) associated with interquartile range increases in moving average concentrations of particulate matter in diameter <2.5 μm and traffic-related air pollutants (black carbon, nitrogen dioxide, and carbon monoxide) during the 1 to 7 days before each participant's clinic visit. Higher ambient air pollutant levels were also associated with significant reductions in circulating HDL cholesterol and apoA-I (apolipoprotein A-I), as well as elevations in HDL oxidation index, oxidized LDL (low-density lipoprotein), malondialdehyde, and high-sensitivity C-reactive protein. Conclusions- Higher ambient air pollution concentrations were associated with impairments in HDL functionality, potentially because of systemic inflammation and oxidative stress. These novel findings further our understanding of the mechanisms whereby air pollutants promote cardiometabolic disorders.
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Affiliation(s)
- Jianping Li
- From the Division of Cardiology, Peking University First Hospital, Beijing (J.L., S.L., T.Y., Y.H.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Changping Zhou
- Institute of Cardiovascular Sciences (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Institute of Systems Biomedicine (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Hongbing Xu
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Robert D Brook
- Division of Cardiovascular Medicine (R.D.B.), University of Michigan, Ann Arbor
| | - Shengcong Liu
- From the Division of Cardiology, Peking University First Hospital, Beijing (J.L., S.L., T.Y., Y.H.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Tieci Yi
- From the Division of Cardiology, Peking University First Hospital, Beijing (J.L., S.L., T.Y., Y.H.)
| | - Yang Wang
- Department of Prevention and Health Care, Hospital of Health Science Center (Y.W.), Peking University, Beijing
| | - Baihuan Feng
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.)
| | - Mingming Zhao
- Institute of Cardiovascular Sciences (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Institute of Systems Biomedicine (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing
| | - Xu Wang
- Institute of Cardiovascular Sciences (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Institute of Systems Biomedicine (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing
| | - Qian Zhao
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.)
| | - Jie Chen
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.).,Institute for Risk Assessment Sciences (J.C.), University Medical Centre Utrecht, University of Utrecht, the Netherlands.,Julius Centre for Health Sciences and Primary Care (J.C.), University Medical Centre Utrecht, University of Utrecht, the Netherlands
| | - Xiaoming Song
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Tong Wang
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Shuo Liu
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.)
| | - Yi Zhang
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Rongshan Wu
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Jianing Gao
- Institute of Cardiovascular Sciences (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Institute of Systems Biomedicine (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Bing Pan
- Institute of Cardiovascular Sciences (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Institute of Systems Biomedicine (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | | | - Sanjay Rajagopalan
- Division of Cardiovascular Medicine, Case Western Reserve Medical School, Cleveland OH (S.R.), Peking University, Beijing
| | - Yong Huo
- From the Division of Cardiology, Peking University First Hospital, Beijing (J.L., S.L., T.Y., Y.H.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Lemin Zheng
- Institute of Cardiovascular Sciences (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Institute of Systems Biomedicine (C.Z., M.Z., X.W., J.G., B.P., L.Z.), Peking University School of Basic Medical Sciences, Beijing.,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
| | - Wei Huang
- Department of Occupational and Environmental Health, Peking University School of Public Health, Peking University Institute of Environmental Medicine (H.X., B.F., Q.Z., S.L., Y.Z., R.W., X.S., T.W., W.H., J.C.).,Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Health Science Center (J.L., C.Z., H.X., S.L., T.Y., B.F., M.Z., X.W., Q.Z., S.L., Y.Z., R.W., X.S., T.W., J.G., B.P., Y.H., L.Z., W.H.), Peking University, Beijing
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Ramanathan G, Yin F, Speck M, Tseng CH, Brook JR, Silverman F, Urch B, Brook RD, Araujo JA. Effects of urban fine particulate matter and ozone on HDL functionality. Part Fibre Toxicol 2016; 13:26. [PMID: 27221567 PMCID: PMC4879751 DOI: 10.1186/s12989-016-0139-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 05/10/2016] [Indexed: 01/16/2023] Open
Abstract
Background Exposures to ambient particulate matter (PM) are associated with increased morbidity and mortality. PM2.5 (<2.5 μm) and ozone exposures have been shown to associate with carotid intima media thickness in humans. Animal studies support a causal relationship between air pollution and atherosclerosis and identified adverse PM effects on HDL functionality. We aimed to determine whether brief exposures to PM2.5 and/or ozone could induce effects on HDL anti-oxidant and anti-inflammatory capacity in humans. Methods Subjects were exposed to fine concentrated ambient fine particles (CAP) with PM2.5 targeted at 150 μg/m3, ozone targeted at 240 μg/m3(120 ppb), PM2.5 plus ozone targeted at similar concentrations, and filtered air (FA) for 2 h, on 4 different occasions, at least two weeks apart, in a randomized, crossover study. Blood was obtained before exposures (baseline), 1 h after and 20 h after exposures. Plasma HDL anti-oxidant/anti-inflammatory capacity and paraoxonase activity were determined. HDL anti-oxidant/anti-inflammatory capacity was assessed by a cell-free fluorescent assay and expressed in units of a HDL oxidant index (HOI). Changes in HOI (ΔHOI) were calculated as the difference in HOI from baseline to 1 h after or 20 h after exposures. Results There was a trend towards bigger ΔHOI between PM2.5 and FA 1 h after exposures (p = 0.18) but not 20 h after. This trend became significant (p <0.05) when baseline HOI was lower (<1.5 or <2.0), indicating decreased HDL anti-oxidant/anti-inflammatory capacity shortly after the exposures. There were no significant effects of ozone alone or in combination with PM2.5 on the change in HOI at both time points. The change in HOI due to PM2.5 showed a positive trend with particle mass concentration (p = 0.078) and significantly associated with the slope of systolic blood pressure during exposures (p = 0.005). Conclusions Brief exposures to concentrated PM2.5 elicited swift effects on HDL anti-oxidant/anti-inflammatory functionality, which could indicate a potential mechanism for how particulate air pollution induces harmful cardiovascular effects. Electronic supplementary material The online version of this article (doi:10.1186/s12989-016-0139-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gajalakshmi Ramanathan
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, 10833 Le Conte Avenue, CHS 43-264, P.O. Box 951679, Los Angeles, CA, 90095, USA
| | - Fen Yin
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, 10833 Le Conte Avenue, CHS 43-264, P.O. Box 951679, Los Angeles, CA, 90095, USA
| | - Mary Speck
- Division of Occupational and Environmental Health, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Chi-Hong Tseng
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, 10833 Le Conte Avenue, CHS 43-264, P.O. Box 951679, Los Angeles, CA, 90095, USA
| | - Jeffrey R Brook
- Environment Canada, Toronto, ON, Canada.,Southern Ontario Centre for Atmospheric Aerosol Research (SOCAAR), Toronto, ON, Canada
| | - Frances Silverman
- Southern Ontario Centre for Atmospheric Aerosol Research (SOCAAR), Toronto, ON, Canada.,Division of Occupational and Environmental Health, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.,Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada
| | - Bruce Urch
- Southern Ontario Centre for Atmospheric Aerosol Research (SOCAAR), Toronto, ON, Canada.,Division of Occupational and Environmental Health, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Robert D Brook
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Jesus A Araujo
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, 10833 Le Conte Avenue, CHS 43-264, P.O. Box 951679, Los Angeles, CA, 90095, USA. .,Department of Environmental Health Sciences, Fielding School of Public Health, University of California, Los Angeles, USA. .,Molecular Biology Institute, University of California, Los Angeles, CA, USA.
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