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Raaschou-Nielsen O, Thorsteinson E, Antonsen S, Holst GJ, Sigsgaard T, Geels C, Frohn LM, Christensen JH, Brandt J, Pedersen CB, Hvidtfeldt UA. Long-term exposure to air pollution and mortality in the Danish population a nationwide study. EClinicalMedicine 2020; 28:100605. [PMID: 33163948 PMCID: PMC7610042 DOI: 10.1016/j.eclinm.2020.100605] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 10/02/2020] [Accepted: 10/06/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Studies have shown higher mortality in association with exposure to air pollution. We investigated this association with focus on differences between socioeconomic groups. METHODS We included all Danes born between 1921 and 1985 aged 30-85 years from 1991 to 2015 (N = 4,401,348). We applied a nested case-control design and identified those who died during follow-up and selected five controls per case. We modelled NO2, fine particulate matter (PM2·5), black carbon (BC) particles, and ozone (O3) as five-year average concentrations at the residential addresses of 672,895 all natural cause mortality cases and 3,426,533 controls in conditional logistic regression with adjustment for individual and neighbourhood level socio-demographic variables. FINDINGS In single pollutant models, a 10 μg/m3 (BC: 1 μg/m3) increase in NO2, PM2·5, BC, and O3 was associated with natural cause mortality rate ratios (MRR) of 1·05 (95% confidence interval 1·04-1·06), 1·08 (1·04-1·13), 1·05 (1·02-1·08), and 0·96 (0·95-0·97), respectively. The patterns were similar for respiratory disease and lung cancer mortality. O3 was associated with higher risk of CVD mortality. The rate differences for a unit increase in PM2·5, NO2, and BC were largest among those with the lowest income; this pattern was not detected when considering the relative risk measure, MRR. INTERPRETATION Long-term concentration of air pollution at the residence was associated with higher natural cause mortality in the Danish population and the strength of the association differed by socioeconomic group. We recommend that future studies express socioeconomic differences in absolute rather than relative risk.
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Affiliation(s)
- Ole Raaschou-Nielsen
- Danish Cancer Society Research Center, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
| | - Erla Thorsteinson
- National Centre for Register-Based Research, Aarhus BSS, Department of Economics and Business Economics, Aarhus University, Fuglesangs allè 26, 8210 Aarhus V, Denmark
- Centre for Integrated Register-based Research, CIRRAU, Aarhus University, Fuglesangs allè 26, 8210 Aarhus V, Denmark
| | - Sussie Antonsen
- National Centre for Register-Based Research, Aarhus BSS, Department of Economics and Business Economics, Aarhus University, Fuglesangs allè 26, 8210 Aarhus V, Denmark
- Centre for Integrated Register-based Research, CIRRAU, Aarhus University, Fuglesangs allè 26, 8210 Aarhus V, Denmark
| | - Gitte J Holst
- Department of Public Health, Aarhus University, Vennelyst Boulevard 2, 8000 Aarhus, Denmark
| | - Torben Sigsgaard
- Department of Public Health, Aarhus University, Vennelyst Boulevard 2, 8000 Aarhus, Denmark
| | - Camilla Geels
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
| | - Lise M Frohn
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
| | - Jesper H Christensen
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
| | - Jørgen Brandt
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
- iClimate - Aarhus University interdisciplinary Center for Climate Change, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
| | - Carsten B Pedersen
- National Centre for Register-Based Research, Aarhus BSS, Department of Economics and Business Economics, Aarhus University, Fuglesangs allè 26, 8210 Aarhus V, Denmark
- Centre for Integrated Register-based Research, CIRRAU, Aarhus University, Fuglesangs allè 26, 8210 Aarhus V, Denmark
| | - Ulla A. Hvidtfeldt
- Danish Cancer Society Research Center, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark
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202
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The 10-Year Study of the Impact of Particulate Matters on Mortality in Two Transit Cities in North-Eastern Poland (PL-PARTICLES). J Clin Med 2020; 9:jcm9113445. [PMID: 33120927 PMCID: PMC7692125 DOI: 10.3390/jcm9113445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/16/2020] [Accepted: 10/24/2020] [Indexed: 01/08/2023] Open
Abstract
The detrimental influence of air pollution on mortality has been established in a series of studies. The majority of them were conducted in large, highly polluted cities-there is a lack of studies from small, relatively clean regions. The aim was to analyze the short-term impact of particulate matters (PMs) on mortality in north-eastern Poland. Time-stratified case-crossover design was performed for mortality in years 2008-2017. Daily concentrations of PM2.5 (28.4 µg/m3, interquartile range (IQR) = 25.2) vs. (12.6 µg/m3, IQR = 9.0) and PM10 (29.0 µg/m3, IQR = 18.0) vs. (21.7 µg/m3, IQR = 14.5) were higher in Łomża than Suwałki (p < 0.001). Impact of PM2.5 on mortality was recorded in Łomża (odds ratio (OR) for IQR increase 1.061, 1.017-1.105, p = 0.06, lag 0) and Suwałki (OR for IQR increase 1.044, 1.001-1.089, p = 0.004, lag 0). PM10 had an impact on mortality in Łomża (OR for IQR increase 1.028, 1.000-1.058, p = 0.049, lag 1). Cardiovascular mortality was affected by increase of PM2.5 in Łomża (1.086, 1.020-1.156, p = 0.01) and Suwałki (1.085, 1.005-1.171, p = 0.04). PM2.5 had an influence on respiratory mortality in Łomża (1.163, 1.021-1.380, p = 0.03, lag 1). In the whole studied region, despite differences in the air quality, the influence of PMs on mortality was observed.
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203
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Accumulated ambient air pollution and colon cancer incidence in Thailand. Sci Rep 2020; 10:17765. [PMID: 33082474 PMCID: PMC7575563 DOI: 10.1038/s41598-020-74669-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 09/30/2020] [Indexed: 12/17/2022] Open
Abstract
This research examined the relationship between colon cancer risks and pollution in various areas of Thailand, using satellites to gather quantities of aerosols in the atmosphere. Bayesian hierarchical spatio-temporal model and the Poisson log-linear model were used to examine the incidence rates of colon cancer standardized by national references; from the database of the National Health Security Office, Ministry of Public Health of Thailand and NASA's database from aerosol diagnostics model. Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) was used to explore disease-gender-specific spatio-temporal patterns of colon cancer incidences and accumulated air pollution-related cancers in Thailand between 2010 and 2016. A total of 59,605 patients were selected for the study. Due to concerns regarding statistical reliability between aerosol diagnostics model and colon cancer incidences, the posterior probabilities of risk appeared the most in dust PM2.5. It could be interpreted as relative risk in every increase of 10 μg/m3 in black carbon, organic carbon, and dust-PM2.5 levels were associated respectively with an increase of 4%, 4%, and 15% in the risks of colon cancer. A significant increase in the incidence of colon cancer with accumulated ambient air quality raised concerns regarding the prevention of air pollution. This study utilized data based on the incidences of colon cancer; the country's database and linked cancer data to pollution. According to the database from NASA's technology, this research has never been conducted in Thailand.
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204
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Du X, Zeng X, Zhang J, Pan K, Song L, Zhou J, Zhou L, Xie Y, Sun Q, Ge W, Chen R, Zhao J, Kan H. Ambient fine particulate matter induced the elevation of blood pressure through ACE2/Ang(1-7) pathway: The evidence from urine metabolites. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:111044. [PMID: 32888613 DOI: 10.1016/j.ecoenv.2020.111044] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND Exposure to ambient fine particulate matter (PM2.5) is associated with various adverse health outcomes. Although several mechanisms have been proposed including oxidative stress and inflammatory responses, the exact mechanism is still unknown. Few studies have investigated the mechanism linking PM2.5 and blood pressure (BP). In this study, we measured urinary metabolites and BP -related renin-angiotensin-aldosterone system (RAAS) to investigate the associations between ambient PM2.5 exposure and BP in healthy C57BL/6 mice. METHODS The C57BL/6 mice were exposed to ambient concentrated PM2.5 or filtered air (FA) for 16 weeks. Systolic BP and diastolic BP were measured by noninvasive BP system. The urine metabolites were quantified using the untargeted metabolomics approach. The expression of RAAS-related proteins angiotensin-converting enzyme (ACE)2, angiotensin (Ang) II, Ang (1-7) and aldosterone (ALD) were measured using Western blot and ELISA kits. RESULTS The metabolomics analysis demonstrated that PM2.5 exposure induced significant changes of some metabolites in urine, including stress hormones, amino acids, fatty acids, and lipids. Furthermore, there was an elevation of BP, increase of serous Ang II and ALD, along with the decrease of ACE2 and Ang (1-7) in kidney in the PM2.5-exposed mice compared with FA-exposed mice. CONCLUSIONS The results demonstrated that PM2.5 exposure-induced BP elevation might be associated with RAAS activation. Meanwhile, PM2.5 exposure-induced changes of stress hormone and lipid metabolism might mediate the activation of RAAS. The results suggested that the systemic stress hormone and lipid metabolism was associated with the development of hypertension.
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Affiliation(s)
- Xihao Du
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Xuejiao Zeng
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Jia Zhang
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Kun Pan
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Liying Song
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Ji Zhou
- Typhoon Institute/CMA, Shanghai Key Laboratory of Meteorology and Health, Shanghai, 200030, China
| | - Li Zhou
- Department of Physiology and Pathophysiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yuquan Xie
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qinghua Sun
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, USA
| | - Wenzhen Ge
- Regeneron Pharmaceuticals Inc., New York, 10591, USA
| | - Renjie Chen
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Jinzhuo Zhao
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China; Typhoon Institute/CMA, Shanghai Key Laboratory of Meteorology and Health, Shanghai, 200030, China.
| | - Haidong Kan
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China; Children's Hospital of Fudan University, National Center for Children's Health, Shanghai, China.
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205
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Wang N, Mengersen K, Tong S, Kimlin M, Zhou M, Liu Y, Hu W. County-level variation in the long-term association between PM 2.5 and lung cancer mortality in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 738:140195. [PMID: 32806350 DOI: 10.1016/j.scitotenv.2020.140195] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/11/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION The relative risk (RR) of long-term exposure to PM2.5 in lung cancer mortality (LCM) may vary spatially in China. However, previous studies applying global regression have been unable to capture such variation. We aimed to employ a geographically weighted Poisson regression (GWPR) to estimate the RRs of LCM among the elderly (≥65 years) related to long-term exposure to PM2.5 and the LCM attributable to PM2.5 at the county level in China. METHODS We obtained annual LCM in the elderly between 2013 and 2015 from the National Death Surveillance. We linked annual mean concentrations of PM2.5 between 2000 and 2004 with LCM using GWPR model at 148 counties across mainland China, adjusting for smoking and socioeconomic covariates. We used county-specific GWPR models to estimate annual average LCM in the elderly between 2013 and 2015 attributable to PM2.5 exposure between 2000 and 2004. RESULTS The magnitude of the association between long-term exposure to PM2.5 and LCM varied with county. The median of county-specific RRs of LCM among elderly men and women was 1.52 (range: 0.90, 2.40) and 1.49 (range: 0.88, 2.56) for each 10 μg/m3 increment in PM2.5, respectively. The RRs were positively significant (P < 0.05) at 95% (140/148) of counties among both elderly men and women. Higher RRs of PM2.5 among elderly men were located at Southwest and South China, and higher RRs among elderly women were located at Northwest, Southwest, and South China. There were 99,967 and 54,457 lung cancer deaths among elderly men and women that could be attributed to PM2.5, with the attributable fractions of 31.4% and 33.8%, respectively. CONCLUSIONS The relative importance of long-term exposure to PM2.5 in LCM differed by county. The results could help the government design tailored and efficient interventions. More stringent PM2.5 control is urgently needed to reduce LCM in China.
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Affiliation(s)
- Ning Wang
- School of Public Health and Social Work, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Kerrie Mengersen
- School of Mathematical Sciences, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Shilu Tong
- School of Public Health and Social Work, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia; Shanghai Children's Medical Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, China; School of Public Health, Institute of Environment and Population Health, Anhui Medical University, Hefei, China
| | - Michael Kimlin
- Health Research Institute, University of the Sunshine Coast, Sippy Downs, Queensland, Australia; School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Maigeng Zhou
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yang Liu
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Wenbiao Hu
- School of Public Health and Social Work, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
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206
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Jin Y, Lu Y, Li Y, Zhao H, Wang X, Shen Y, Kuang X. Correlation between environmental low-dose cadmium exposure and early kidney damage: A comparative study in an industrial zone vs. a living quarter in Shanghai, China. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 79:103381. [PMID: 32413495 DOI: 10.1016/j.etap.2020.103381] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
To investigate heavy metal exposure in an industrial zone vs. a living quarter in Shanghai and explore the relationship between the heavy metal source and urine cadmium (Cd) and early kidney damage. Blood lead and urine Cd, manganese (Mn), mercury (Hg), arsenic (As) and EKD indexes were compared between residents in Exposure group (n = 168) and Control group (n = 168). It was found that PM2.5 level in Exposure group was significantly higher than that in Control group, and serum Cys-C and urine Cd, NAG, mAlb, KIM-1 and Cd-MT levels in Exposure group were also significantly higher than those in Control group, suggesting that differences in urine Cd and heavy metal levels between the residents of the two groups may be due to different PM2.5 concentrations in the environments of the two areas. Cd accumulation within the human body can induce kidney damage, probably through its potential hazard to the proximal tubular epithelial cells.
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Affiliation(s)
- Yuanyuan Jin
- Department of Occupational Diseases of Yangpu Hospital Under Yangpu District Central Hospital Affiliated to Tongji University, Shanghai 200090, China
| | - Yiwen Lu
- Department of Occupational Diseases of Yangpu Hospital Under Yangpu District Central Hospital Affiliated to Tongji University, Shanghai 200090, China
| | - Yaying Li
- Physical Examination Center of Jiading District Anting Hospital, Shanghai 201805, China
| | - Huijun Zhao
- Department of Occupational Diseases of Yangpu Hospital Under Yangpu District Central Hospital Affiliated to Tongji University, Shanghai 200090, China
| | - Xuan Wang
- Department of Occupational Diseases of Yangpu Hospital Under Yangpu District Central Hospital Affiliated to Tongji University, Shanghai 200090, China
| | - Yuetian Shen
- Department of Occupational Diseases of Yangpu Hospital Under Yangpu District Central Hospital Affiliated to Tongji University, Shanghai 200090, China
| | - Xingya Kuang
- Department of Occupational Diseases of Yangpu Hospital Under Yangpu District Central Hospital Affiliated to Tongji University, Shanghai 200090, China.
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207
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Chen J, Hoek G. Long-term exposure to PM and all-cause and cause-specific mortality: A systematic review and meta-analysis. ENVIRONMENT INTERNATIONAL 2020; 143:105974. [PMID: 32703584 DOI: 10.1016/j.envint.2020.105974] [Citation(s) in RCA: 343] [Impact Index Per Article: 85.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 06/19/2020] [Accepted: 06/24/2020] [Indexed: 05/21/2023]
Abstract
As new scientific evidence on health effects of air pollution is generated, air quality guidelines need to be periodically updated. The objective of this review is to support the derivation of updated guidelines by the World Health Organization (WHO) by performing a systematic review of evidence of associations between long-term exposure to particulate matter with diameter under 2.5 µm (PM2.5) and particulate matter with diameter under 10 µm (PM10), in relation to all-cause and cause-specific mortality. As there is especially uncertainty about the relationship at the low and high end of the exposure range, the review needed to provide an indication of the shape of the concentration-response function (CRF). We systematically searched MEDLINE and EMBASE from database inception to 9 October 2018. Articles were checked for eligibility by two reviewers. We included cohort and case-control studies on outdoor air pollution in human populations using individual level data. In addition to natural-cause mortality, we evaluated mortality from circulatory diseases (ischemic heart disease (IHD) and cerebrovascular disease (stroke) also specifically), respiratory diseases (Chronic Obstructive Pulmonary Disease (COPD) and acute lower respiratory infection (ALRI) also specifically) and lung cancer. A random-effect meta-analysis was performed when at least three studies were available for a specific exposure-outcome pair. Risk of bias was assessed for all included articles using a specifically developed tool coordinated by WHO. Additional analyses were performed to assess consistency across geographic region, explain heterogeneity and explore the shape of the CRF. An adapted GRADE (Grading of Recommendations Assessment, Development and Evaluation) assessment of the body of evidence was made using a specifically developed tool coordinated by WHO. A large number (N = 107) of predominantly cohort studies (N = 104) were included after screening more than 3000 abstracts. Studies were conducted globally with the majority of studies from North America (N = 62) and Europe (N = 25). More studies used PM2.5 (N = 71) as the exposure metric than PM10 (N = 42). PM2.5 was significantly associated with all causes of death evaluated. The combined Risk Ratio (RR) for PM2.5 and natural-cause mortality was 1.08 (95%CI 1.06, 1.09) per 10 µg/m3. Meta analyses of studies conducted at the low mean PM2.5 levels (<25, 20, 15, 12, 10 µg/m3) yielded RRs that were similar or higher compared to the overall RR, consistent with the finding of generally linear or supra-linear CRFs in individual studies. Pooled RRs were almost identical for studies conducted in North America, Europe and Western Pacific region. PM10 was significantly associated with natural-cause and most but not all causes of death. Application of the risk of bias tool showed that few studies were at a high risk of bias in any domain. Application of the adapted GRADE tool resulted in an assessment of "high certainty of evidence" for PM2.5 with all assessed endpoints except for respiratory mortality (moderate). The evidence was rated as less certain for PM10 and cause-specific mortality ("moderate" for circulatory, IHD, COPD and "low" for stroke mortality. Compared to the previous global WHO evaluation, the evidence base has increased substantially. However, studies conducted in low- and middle- income countries (LMICs) are still limited. There is clear evidence that both PM2.5 and PM10 were associated with increased mortality from all causes, cardiovascular disease, respiratory disease and lung cancer. Associations remained below the current WHO guideline exposure level of 10 µg/m3 for PM2.5. Systematic review registration number (PROSPERO ID): CRD42018082577.
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Affiliation(s)
- Jie Chen
- Institute for Risk Assessment Sciences, Utrecht University, the Netherlands.
| | - Gerard Hoek
- Institute for Risk Assessment Sciences, Utrecht University, the Netherlands
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208
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Zhou Y, Yuan Y, Chen Y, Lai S. Association Pathways Between Neighborhood Greenspaces and the Physical and Mental Health of Older Adults-A Cross-Sectional Study in Guangzhou, China. Front Public Health 2020; 8:551453. [PMID: 33072696 PMCID: PMC7536577 DOI: 10.3389/fpubh.2020.551453] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 08/14/2020] [Indexed: 11/13/2022] Open
Abstract
According to the United Nations, the proportion of the older population is increasing at a faster rate than all other age groups. Hence, the well-being of older adults is a mounting concern worldwide in the current century. Using a single greenery metric, previous studies linked greenness to residents' well-being. This study aims to extend this field by focusing on the mental and physical well-being of older adults by using remote sensing and streetscape metrics in evaluating neighborhood greenness. We selected 20 residential neighborhoods in Guangzhou City, China as the cross-sectional case study areas. We investigated neighborhood normalized difference vegetation index (NDVI) collected using remote sensing images, streetscape greenery, and PM2.5 via field surveys. We assessed the health condition of 972 senior residents selected by multi-stage stratified probability proportionate to population size sampling technique (PPS) using a questionnaire survey. We adopted the structural equation model (SEM) in analyzing the pathways that link neighborhood greenness and the mental and physical health of older adults. We found that neighborhood greenness has a positive association with the physical activity by older adults that is positively linked to their physical health. Moreover, neighborhood greenness is positively related to regular social interactions among older adults that is positively linked to their mental health. These findings are consistent with those of previous studies. However, we obtained new results that were unique to China. We found that neighborhood greenness has no significant direct relationship with the physical and mental health of older adults and that social interactions of low-income senior groups are more substantially related to neighborhood greenness than the other groups. Therefore, community planning should emphasize the development of neighborhood greenness, such as parks and street trees, to provide natural spaces for social interactions and places for physical activities among older residents.
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Affiliation(s)
- Yuquan Zhou
- Guangdong Key Laboratory for Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China.,Department of City and Regional Planning, College of Environmental Design, University of California, Berkeley, Berkeley, CA, United States
| | - Yuan Yuan
- Guangdong Key Laboratory for Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China
| | - Yujie Chen
- Guangdong Key Laboratory for Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China
| | - Shulin Lai
- Guangdong Key Laboratory for Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China
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209
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Wang Y, Puthussery JV, Yu H, Verma V. Synergistic and antagonistic interactions among organic and metallic components of the ambient particulate matter (PM) for the cytotoxicity measured by Chinese hamster ovary cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 736:139511. [PMID: 32474273 DOI: 10.1016/j.scitotenv.2020.139511] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/11/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Although PM2.5 toxicity is known to be related to its chemical composition, the effect of interactions among various particles' components on the toxicity is not well explored. To understand these interactions, especially metals and organic compounds on PM2.5 cytotoxicity, we chose several redox-active substances known to be present in the ambient particles such as metals (Cu, Fe, and Mn) and quinones [9,10-phenanthraquinone (PQ), 1,2-naphthoquinone (1,2-NQ), 1,4-naphthoquinone (1,4-NQ), and 5-hydroxy-1,4-naphthoquinone (5,H-1,4-NQ)]. Cytotoxicity was assessed through a Chinese hamster ovary (CHO) cells assay and expressed by a median lethal concentration (LC50). Two methods were employed to assess the interactions. In the first method, we tested the impact of nontoxic level of a component on the LC50 of other components. In the second method, we mixed two components in different concentration ratios to expose the cells and calculated a mixture toxicity index (MTI). MTI is a composite value to quantify the nature of interactions such that the interactions are considered synergistic when MTI > 1, additive when 0 < MTI ≤ 1 and antagonistic when MTI < 0. The interactions between quinones and metals were largely synergistic by both methods. To further assess the environmental relevance of these mixtures, we extracted organic compounds termed as water-soluble Humic-like substances (HULIS) from real ambient PM samples and mixed them with individual metals. A similar pattern, as observed from the interaction of quinones and metals, was found. Moreover, the interactions became more synergistic as the relative concentration of metals with respect to water-soluble HULIS was decreased in these mixtures. With environmentally relevant mass concentration ratios of organics to metals (75-7500), the interactions were strongly synergistic (MTI = 1-115). These results indicate the importance of incorporating the interaction among various PM components for estimating the net toxicity of ambient PM2.5.
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Affiliation(s)
- Yixiang Wang
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 North Mathews Avenue, Urbana, IL 61801, United States
| | - Joseph V Puthussery
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 North Mathews Avenue, Urbana, IL 61801, United States
| | - Haoran Yu
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 North Mathews Avenue, Urbana, IL 61801, United States
| | - Vishal Verma
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 North Mathews Avenue, Urbana, IL 61801, United States.
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210
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Li H, Yan X, Feng S, Li S, Zhang H, Li J, Qi T. Antagonism of interleukin 17 protects chronic obstructive pulmonary disease rat lungs from adverse effects of environmental PM 2.5. Am J Transl Res 2020; 12:5808-5817. [PMID: 33042460 PMCID: PMC7540087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 08/01/2020] [Indexed: 06/11/2023]
Abstract
Severe air pollution has raised concerns about the adverse effects of particulate matters 2.5 μm in size (PM2.5) on human health. However, the mechanisms elucidating how PM2.5 affects lungs, especially in COPD, remain unclear. In this study, we examined the concentration changes of environmental PM2.5 from 2013 to 2019 in Shijiazhuang city. PM2.5 was collected to study its effects on a COPD lung. Inflammatory factors present in bronchoalveolar lavage fluid (BLF) were examined after exposure. An antagonist of IL-17 was used to reverse PM2.5-induced pathological and functional impairments in COPD rat lungs. Our results show that the degree of air pollution changed significantly (55.873, P < 0.001) during the study period in accordance with PM tendency. PM2.5 and PM10 was present in higher concentrations from December 2013 to January 2014 and December 2016 to January 2017, respectively. After COPD rats were exposed to PM2.5 for 2 or 4 weeks, all indicators of lung function (FEV0.3, FVC, FEV0.3/FVC, PEF, Rrs) decreased continuously and significantly. The levels of TGF-β1, IL-6, IL-17, and IL-21 in BLF, as well as the expression of IL-17 in lung tissues, were significantly increased after exposure for 2 or 4 weeks. When an IL-17 antagonist was introduced following PM2.5 exposure, inflammatory factor levels in BLF and pathological scores of lung tissues decreased significantly. Moreover, lung functions were partially rescued. Collectively, our data demonstrate that IL-17 is a potential therapeutic target for COPD lungs after PM2.5 exposure.
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Affiliation(s)
- Haitao Li
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Hebei Medical University No. 215, Heping West Road, Shijiazhuang 050000, Hebei, China
| | - Xixin Yan
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Hebei Medical University No. 215, Heping West Road, Shijiazhuang 050000, Hebei, China
| | - Shan Feng
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Hebei Medical University No. 215, Heping West Road, Shijiazhuang 050000, Hebei, China
| | - Shuai Li
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Hebei Medical University No. 215, Heping West Road, Shijiazhuang 050000, Hebei, China
| | - Huiran Zhang
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Hebei Medical University No. 215, Heping West Road, Shijiazhuang 050000, Hebei, China
| | - Jingwen Li
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Hebei Medical University No. 215, Heping West Road, Shijiazhuang 050000, Hebei, China
| | - Tianjie Qi
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Hebei Medical University No. 215, Heping West Road, Shijiazhuang 050000, Hebei, China
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211
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Relationship between particulate matter exposure and female breast cancer incidence and mortality: a systematic review and meta-analysis. Int Arch Occup Environ Health 2020; 94:191-201. [PMID: 32914230 DOI: 10.1007/s00420-020-01573-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 08/28/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The associations of PM with the risk and prognosis of breast cancer have not been determined. This systematic review aimed to provide an updated understanding of the relationship between PM exposure level and breast cancer incidence and mortality. METHODS Articles from Web of Science and PubMed databases were methodically inspected until March 8, 2020. In final, 15 studies were kept for analysis, which provided necessary information to estimate the impact of PM on breast cancer risk and prognosis. These studies were combined for quantitative analyses to evaluate the effect of per 10 μg /m3 increment exposure of PM2.5 (< 2.5 μm in aerodynamic diameter) and PM10 (< 10 μm in aerodynamic diameter) using random-effects model. RESULTS PM2.5 exposure was associated with increased breast cancer mortality (relative risk [RR] = 1.09; 95% confidence interval [CI]: 1.02, 1.16; PQ-test = 0.158). No association of PM2.5 (1.02; 0.97, 1.18; 0.308) and PM10 (1.03; 0.98, 1.09; 0.009) with the increase incidence of breast cancer was observed. Stratified analysis suggested that PM2.5 was associated with the increase mortality of breast cancer (1.10; 1.03, 1.17; 0.529) in subgroup of developed country. PM10 was associated with breast cancer incidence based on studies published after 2017 (1.08; 1.00, 1.15; 0.157) and European studies (1.15; 1.06, 1.25; 0.502). CONCLUSIONS Our study indicated that PM2.5 exposure was related to breast cancer mortality. Further researches in this field are needed to validate the conclusion.
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212
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Turner MC, Andersen ZJ, Baccarelli A, Diver WR, Gapstur SM, Pope CA, Prada D, Samet J, Thurston G, Cohen A. Outdoor air pollution and cancer: An overview of the current evidence and public health recommendations. CA Cancer J Clin 2020; 70:10.3322/caac.21632. [PMID: 32964460 PMCID: PMC7904962 DOI: 10.3322/caac.21632] [Citation(s) in RCA: 267] [Impact Index Per Article: 66.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/08/2020] [Accepted: 07/09/2020] [Indexed: 12/24/2022] Open
Abstract
Outdoor air pollution is a major contributor to the burden of disease worldwide. Most of the global population resides in places where air pollution levels, because of emissions from industry, power generation, transportation, and domestic burning, considerably exceed the World Health Organization's health-based air-quality guidelines. Outdoor air pollution poses an urgent worldwide public health challenge because it is ubiquitous and has numerous serious adverse human health effects, including cancer. Currently, there is substantial evidence from studies of humans and experimental animals as well as mechanistic evidence to support a causal link between outdoor (ambient) air pollution, and especially particulate matter (PM) in outdoor air, with lung cancer incidence and mortality. It is estimated that hundreds of thousands of lung cancer deaths annually worldwide are attributable to PM air pollution. Epidemiological evidence on outdoor air pollution and the risk of other types of cancer, such as bladder cancer or breast cancer, is more limited. Outdoor air pollution may also be associated with poorer cancer survival, although further research is needed. This report presents an overview of outdoor air pollutants, sources, and global levels, as well as a description of epidemiological evidence linking outdoor air pollution with cancer incidence and mortality. Biological mechanisms of air pollution-derived carcinogenesis are also described. This report concludes by summarizing public health/policy recommendations, including multilevel interventions aimed at individual, community, and regional scales. Specific roles for medical and health care communities with regard to prevention and advocacy and recommendations for further research are also described.
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Affiliation(s)
- Michelle C. Turner
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- McLaughlin Centre for Population Health Risk Assessment, University of Ottawa, Ottawa, Ontario, Canada
| | - Zorana J. Andersen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Andrea Baccarelli
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, United States
| | - W. Ryan Diver
- Behavioral and Epidemiology Research Group, American Cancer Society, Atlanta, Georgia, United States
| | - Susan M. Gapstur
- Behavioral and Epidemiology Research Group, American Cancer Society, Atlanta, Georgia, United States
| | - C. Arden Pope
- Department of Economics, Brigham Young University, Provo, Utah, United States
| | - Diddier Prada
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, United States
- Instituto Nacional de Cancerología, Mexico City, Mexico
| | - Jonathan Samet
- Colorado School of Public Health, Aurora, Colorado, United States
| | - George Thurston
- New York University School of Medicine, New York, New York, United States
| | - Aaron Cohen
- Health Effects Institute, Boston, Massachusetts, United States
- Institute for Health Metrics and Evaluation, Seattle, Washington, United States
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213
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Guo H, Fu H, Jin L, Huang S, Li X. Quantification of synergistic, additive and antagonistic effects of aerosol components on total oxidative potential. CHEMOSPHERE 2020; 252:126573. [PMID: 32220725 DOI: 10.1016/j.chemosphere.2020.126573] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 03/16/2020] [Accepted: 03/19/2020] [Indexed: 06/10/2023]
Abstract
The interaction-based oxidative potential (OPint) represents the prediction of binary mixture effects distinguishing from linear additivity by including information on binary mixtures among PM components. The objective of this work is to develope a reliable estimate on the possible synergistic or antagonistic possibility of binary PM components and to quantify the combined effect. We firstly assessed the interactions among PM components in generating the OP based on DTT consumption rate and AA depletion. We started with the standard solution sequence (from 0.005 to 10 μM), including quinones (PQ, 1,2-NQ, and 1,4-NQ) and metals (Cu, Mn, and Fe). The interactions between metals were antagonistic interactions in DTT consumption. Cu showed antagonistic interaction with PQ, but additive with 1,2-NQ and 1,4-NQ. Mn interacted synergistically with 1,4-NQ in DTT consumption but antagonistically with PQ (where CPQ < 2.5 μM) and 1,4-NQ (where CPQ < 2 μM). Fe showed synergistic with quinones in investigated concentration range (from 0.01 to 5 μM). Finally, applying a moderate approach, on the basis of interaction magnitude (M = 5), resulted in 1-17% higher environmental risks, compared with the classical calculation method using simple addition. This work highlights a new approach to quantify the interaction effects between metals and quinones in PM components, and apportioning the components' contributions for PM OP.
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Affiliation(s)
- Huibin Guo
- Department of Environmental Engineering, Xiamen University of Technology, Xiamen, 361024, China
| | - Haiyan Fu
- Department of Environmental Engineering, Xiamen University of Technology, Xiamen, 361024, China
| | - Lei Jin
- Department of Environmental Engineering, Xiamen University of Technology, Xiamen, 361024, China
| | - Sijing Huang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Xiang Li
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200032, China.
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214
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Wang X, Hart JE, Liu Q, Wu S, Nan H, Laden F. Association of particulate matter air pollution with leukocyte mitochondrial DNA copy number. ENVIRONMENT INTERNATIONAL 2020; 141:105761. [PMID: 32388147 PMCID: PMC7419671 DOI: 10.1016/j.envint.2020.105761] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/07/2020] [Accepted: 04/22/2020] [Indexed: 05/22/2023]
Abstract
BACKGROUND Ambient particulate matter (PM) has been associated with mitochondrial damage and dysfunction caused by excessive oxidative stress, but the associations between long-term PM exposure and leukocyte mitochondrial DNA copy number (mtDNAcn), a biomarker of mitochondrial dysfunction due to oxidative stress, are less studied. OBJECTIVES To investigate the associations between short-, intermediate- and long-term exposure (1-, 3- and 12-months) to different size fractions of PM (PM2.5, PM2.5-10 and PM10) and leukocyte mtDNAcn in a cross-sectional study. METHODS The associations between each of the PM exposure metrics with z scores of log-transformed mtDNAcn were examined using generalized linear regression models in 2758 female participants from the Nurses' Health Study (NHS). Monthly exposures to PM were estimated from spatio-temporal prediction models matched to each participants' address history. Potential effect modification by selected covariates was examined using multiplicative interaction terms and subgroup analyses. RESULTS In single-size fraction models, increases in all size fractions of PM were associated with decreases in mtDNAcn, although only models with longer averages of PM2.5 reached statistical significance. For example, an interquartile range (IQR) increase in 12-month average ambient PM2.5 (5.5 μg/m3) was associated with a 0.07 [95% confidence interval (95% CI): -0.13, -0.01; p-value = 0.02] decrease in mtDNAcn z score in both basic- and multivariable-adjusted models. Associations for PM2.5 were stronger after controlling for PM2.5-10 in two size-fraction models. CONCLUSIONS Our study suggests that long-term exposure to ambient PM2.5 is associated with decreased mtDNAcn in healthy women.
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Affiliation(s)
- Xinmei Wang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Jaime E Hart
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Exposure, Epidemiology and Risk Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Qisijing Liu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Shaowei Wu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China; Key Laboratory of Molecular Cardiovascular Sciences, Peking University, Ministry of Education, China.
| | - Hongmei Nan
- Department of Epidemiology, Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis, IN, USA; Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN, USA
| | - Francine Laden
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Exposure, Epidemiology and Risk Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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215
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Coleman NC, Burnett RT, Higbee JD, Lefler JS, Merrill RM, Ezzati M, Marshall JD, Kim SY, Bechle M, Robinson AL, Pope CA. Cancer mortality risk, fine particulate air pollution, and smoking in a large, representative cohort of US adults. Cancer Causes Control 2020; 31:767-776. [PMID: 32462559 DOI: 10.1007/s10552-020-01317-w] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 05/18/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE Air pollution and smoking are associated with various types of mortality, including cancer. The current study utilizes a publicly accessible, nationally representative cohort to explore relationships between fine particulate matter (PM2.5) exposure, smoking, and cancer mortality. METHODS National Health Interview Survey and mortality follow-up data were combined to create a study population of 635,539 individuals surveyed from 1987 to 2014. A sub-cohort of 341,665 never-smokers from the full cohort was also created. Individuals were assigned modeled PM2.5 exposure based on average exposure from 1999 to 2015 at residential census tract. Cox Proportional Hazard models were utilized to estimate hazard ratios for cancer-specific mortality controlling for age, sex, race, smoking status, body mass, income, education, marital status, rural versus urban, region, and survey year. RESULTS The risk of all cancer mortality was adversely associated with PM2.5 (per 10 µg/m3 increase) in the full cohort (hazard ratio [HR] 1.15, 95% confidence interval [CI] 1.08-1.22) and the never-smokers' cohort (HR 1.19, 95% CI 1.06-1.33). PM2.5-morality associations were observed specifically for lung, stomach, colorectal, liver, breast, cervix, and bladder, as well as Hodgkin lymphoma, non-Hodgkin lymphoma, and leukemia. The PM2.5-morality association with lung cancer in never-smokers was statistically significant adjusting for multiple comparisons. Cigarette smoking was statistically associated with mortality for many cancer types. CONCLUSIONS Exposure to PM2.5 air pollution contributes to lung cancer mortality and may be a risk factor for other cancer types. Cigarette smoking has a larger impact on cancer mortality than PM2.5 , but is associated with similar cancer types.
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Affiliation(s)
- Nathan C Coleman
- Department of Economics, Brigham Young University, 142 FOB, Provo, UT, 84602, USA
| | | | - Joshua D Higbee
- Department of Economics, University of Chicago, Chicago, IL, USA
| | - Jacob S Lefler
- Department of Agricultural and Resource Economics, University of California, Berkeley, CA, USA
| | - Ray M Merrill
- Department of Public Health, Brigham Young University, Provo, UT, USA
| | - Majid Ezzati
- MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College, London, London, UK
| | - Julian D Marshall
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, USA
| | - Sun-Young Kim
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
| | - Matthew Bechle
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, USA
| | - Allen L Robinson
- Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA, USA
| | - C Arden Pope
- Department of Economics, Brigham Young University, 142 FOB, Provo, UT, 84602, USA.
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216
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Pang L, Yang C, Cao X, Tian Q, Li B. Experimental Investigation of Air Quality in a Subway Station with Fully Enclosed Platform Screen Doors. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E5213. [PMID: 32707686 PMCID: PMC7400133 DOI: 10.3390/ijerph17145213] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 12/12/2022]
Abstract
In this study, the indoor air quality (IAQ) was investigated in a subway station with fully enclosed platform screen doors in Beijing, China. Eight indoor air pollutants, including PM2.5, PM10, SO2 (sulfur dioxide), NO2 (nitrogen dioxide), NH3 (ammonia), CO (carbon monoxide), CH2O (formaldehyde) and TVOC (total volatile organic compound), were measured for six consecutive days in October 2019. The results indicated that the IAQ in the subway station was basically stable at good levels for most times during the whole measurement period. All eight indoor air pollutants were far below their corresponding maximum allowable concentrations, except for the PM2.5 concentrations, which occasionally exceeded the concentration limits. The concentrations of indoor air pollutants in the subway station were basically within the corresponding standards. The correlation analyses showed that outdoor air pollutants have important influences on indoor air pollutants. The concentrations of PM10, PM2.5, SO2, NO2 and CO in the subway station were positively correlated with their corresponding outdoor concentrations. PM10 was statistically significantly correlated with the passenger flow and train frequency, but the other air pollutants were less impacted by the passenger flow and train frequency.
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Affiliation(s)
- Liping Pang
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (L.P.); (C.Y.)
- School of Aero-Engine, Shenyang Aerospace University, Shenyang 110136, China
| | - Chenyuan Yang
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (L.P.); (C.Y.)
| | - Xiaodong Cao
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (L.P.); (C.Y.)
| | - Qing Tian
- School of Information Science and Technology, North China University of Technology, Beijing 100144, China; (Q.T.); (B.L.)
| | - Bo Li
- School of Information Science and Technology, North China University of Technology, Beijing 100144, China; (Q.T.); (B.L.)
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217
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Wang C, Meng X, Meng M, Shi M, Sun W, Li X, Zhang X, Liu R, Fu Y, Song L. Oxidative stress activates the TRPM2-Ca 2+-NLRP3 axis to promote PM 2.5-induced lung injury of mice. Biomed Pharmacother 2020; 130:110481. [PMID: 32674019 DOI: 10.1016/j.biopha.2020.110481] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 06/14/2020] [Accepted: 06/30/2020] [Indexed: 01/22/2023] Open
Abstract
PM2.5, a main particulate air pollutant, poses a serious hazard to human health. The exposure to PM2.5 increases mortality and morbidity of many respiratory diseases such as asthma, chronic obstructive pulmonary diseases and even lung cancer. The contribution of reactive oxygen species (ROS) in the PM2.5-induced acute lung injury process was confirmed in our previous research, but the molecular mechanism based for it remains unclarified. In this research, ROS-induced lung injury after exposure to PM2.5 was explored in vivo and in vitro. The in vivo study indicated that N-acetyl-L-cysteine (NAC) could attenuate the accumulation of inflammatory cells, the thickening of alveolar wall and the degree of lung injury. Furthermore, we found ROS could regulate the intracellular Ca2+ level, expression of the Transient Receptor Potential Melastatin 2 (TRPM2), NLRP3 and its downstream inflammatory factors in vivo. In vitro experiments with A549 cells and primary type II alveolar epithelium cells (SD cells) showed that ROS induced by PM2.5 exposure could mediate intracellular Ca2+ mobilization via TRPM2, with a subsequent activation of NLRP3. In our present study, we demonstrated the contribution of the ROS-TRPM2-Ca2+-NLRP3 pathway in PM2.5-induced acute lung injury and offered a potential therapeutical target valid for related pathology.
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Affiliation(s)
- Chunyuan Wang
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China
| | - Xianzong Meng
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China; Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, Netherlands
| | - Meiling Meng
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China
| | - Min Shi
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China
| | - Wenping Sun
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China
| | - Xiaojing Li
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China
| | - Xiao Zhang
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China
| | - Ruihao Liu
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China
| | - Ying Fu
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China.
| | - Laiyu Song
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, 116044, People's Republic of China.
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218
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Tan Z, Bai Q, Yin Y, Zhang Y, Chen Q, Moon MH, Liu J. On-line determination of soluble Zn content and size of the residual fraction in PM 2.5 incubated in various aqueous media. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 724:138309. [PMID: 32272413 DOI: 10.1016/j.scitotenv.2020.138309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
Transition metals in airborne particulate matter, especially those with aerodynamic diameters no more than 2.5 μm (PM2.5), have attracted considerable attention due to their potential environmental and human health risks. However, determination of these potential risks requires comprehensive knowledge of their dissolution behavior and residual size in aqueous media. Herein, we describe an analytical method for on-line determination of the soluble fraction of Zn as a model transition metal and the size of residual PM2.5 using hollow fiber flow field-flow fractionation (HF5) coupled with UV-vis absorption spectroscopy and inductively coupled plasma optical emission spectroscopy. HF5 was directly applied on the incubated samples in pure water (PW), simulated natural water (SNW), and simulated lung fluid (SLF) due to its efficient in-line filtration and excellent fractionation resolution. Firstly, the potential of the proposed method (under optimized conditions) for size characterization was assessed against commercial silica microparticles, and results in good agreement with manufacturer and scanning electron microscopy values were obtained. The accuracy of quantification of soluble Zn in various media was then validated using a standard reference material in terms of satisfactory recoveries compared with the reference values. For the real PM2.5 samples collected from different sites in Beijing, China, the soluble Zn percentages in PW, SNW, and SLF were within 15.4-16.7%, 10.6-12.7%, and 43.1-46.9%, respectively, with the amount of particles smaller than ~10 nm released from PM2.5 increasing in the order of SNW < PW < SLF. The proposed HF5-based method provides a powerful and efficient tool for the quantification of soluble transition metal fractions and size characterization of residual particles with reduced analysis times, thus possessing great promise in real-time tracking of the transformation of PM2.5 in environmental and physiological media and in risk assessment.
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Affiliation(s)
- Zhiqiang Tan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Qingsheng Bai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongguang Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yang Zhang
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiang Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China
| | - Myeong Hee Moon
- Department of Chemistry, Yonsei University, Seoul 03722, South Korea
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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219
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Kazemiparkouhi F, Eum KD, Wang B, Manjourides J, Suh HH. Long-term ozone exposures and cause-specific mortality in a US Medicare cohort. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2020; 30:650-658. [PMID: 30992518 PMCID: PMC7197379 DOI: 10.1038/s41370-019-0135-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 02/20/2019] [Accepted: 03/08/2019] [Indexed: 05/03/2023]
Abstract
We examined the association of long-term, daily 1-h maximum O3 (ozone) exposures on cause-specific mortality for 22.2 million US Medicare beneficiaries between 2000-2008. We modeled the association between O3 and mortality using age-gender-race stratified log-linear regression models, adjusted for state of residence. We examined confounding by (1) adjusting for PM2.5 (particles with aerodynamic diameters <2.5 μm) and NO2 (nitrogen dioxide) exposures, temperature, and neighborhood-level characteristics and behaviors, and (2) decomposing O3 into its temporal and spatio-temporal components and comparing estimated risk ratios. We also examined sensitivity of our results to alternate exposure measures based on warm-season 8-h daily maximum and 24-h average exposures. We found increased risks from long-term O3 exposures to be strongest and most consistent for mortality from respiratory disease (1.030, 95% CI: 1.027, 1.034) (including COPD (chronic obstructive pulmonary disease)), CHF (congestive heart failure), and lung cancer (1.015, 95% CI: 1.010, 1.020), with no evidence of confounding by PM2.5, NO2, and temperature and with results similar across O3 exposure measures. While significant, associations between long-term O3 exposures and CVD (cardiovascular)-related mortality (1.005, 95% CI: 1.003, 1.007) were confounded by PM2.5 and varied with the exposure measure, with associations no longer significantly positive when warm-season 8-h maximum or 24-h average O3 was used to assess exposures. In this large study, we provide strong evidence that O3 exposure is associated with mortality from respiratory-related causes and for the first-time, lung cancer, but raise questions regarding O3-related impacts on CVD mortality. Our findings demonstrate the need to further identify potential confounders.
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Affiliation(s)
| | - Ki-Do Eum
- Department of Civil and Environmental Engineering, Tufts University, Medford, MA, USA
| | - Bingyu Wang
- College of Computer and Information Science, Northeastern University, Boston, MA, USA
| | | | - Helen H Suh
- Department of Civil and Environmental Engineering, Tufts University, Medford, MA, USA
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220
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Di Ciaula A, Portincasa P. The environment as a determinant of successful aging or frailty. Mech Ageing Dev 2020; 188:111244. [PMID: 32335099 DOI: 10.1016/j.mad.2020.111244] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 02/07/2023]
Abstract
The number of elderly persons is rising rapidly, and healthspan is a key factor in determining the well-being of individuals and the sustainability of national health systems. Environmental health is crucial for a "successful aging". Complex relationships between environmental factors and non-communicable diseases play a major role, causing or accelerating disabilities. Besides genetic factors, aging results from the concurrence of several environmental factors starting from early (i.e. in utero) life, able to increase susceptibility to diseases in adulthood, and to promote frailty in the elderly. In aged people, an unhealthy environment contributes to a fast and early decline and increases vulnerability. Exposure to pollutants facilitates the onset and progression of cardiovascular, respiratory, metabolic and neurologic diseases through direct effects and epigenetic mechanisms negatively affecting biological age. Healthy diet, healthy environment and constant physical activity could counteract, at least in part, the negative effects of environmental stressors. Almost all environmental factors generating detrimental effects on aging are modifiable, with relevant implications in terms of primary prevention measures potentially leading to decreased frailty, to an increase in the number of years lived without diseases or disability, and to a significant reduction in health expenditure.
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Affiliation(s)
- Agostino Di Ciaula
- Clinica Medica "A. Murri", Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, Bari, Italy; Division of Internal Medicine, Hospital of Bisceglie (ASL BAT), Bisceglie, Italy; International Society of Doctors for Environment (ISDE).
| | - Piero Portincasa
- Clinica Medica "A. Murri", Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, Bari, Italy
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221
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Lu D, Luo Q, Chen R, Zhuansun Y, Jiang J, Wang W, Yang X, Zhang L, Liu X, Li F, Liu Q, Jiang G. Chemical multi-fingerprinting of exogenous ultrafine particles in human serum and pleural effusion. Nat Commun 2020; 11:2567. [PMID: 32444803 PMCID: PMC7244483 DOI: 10.1038/s41467-020-16427-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 04/30/2020] [Indexed: 01/06/2023] Open
Abstract
Ambient particulate matter pollution is one of the leading causes of global disease burden. Epidemiological studies have revealed the connections between particulate exposure and cardiovascular and respiratory diseases. However, until now, the real species of ambient ultrafine particles (UFPs) in humans are still scarcely known. Here we report the discovery and characterization of exogenous nanoparticles (NPs) in human serum and pleural effusion (PE) samples collected from non-occupational subjects in a typical polluted region. We show the wide presence of NPs in human serum and PE samples with extreme diversity in chemical species, concentration, and morphology. Through chemical multi-fingerprinting (including elemental fingerprints, high-resolution structural fingerprints, and stable iron isotopic fingerprints) of NPs, we identify the sources of the NPs to be abiogenic, particularly, combustion-derived particulate emission. Our results provide evidence for the translocation of ambient UFPs into the human circulatory system, and also provide information for understanding their systemic health effects.
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Affiliation(s)
- Dawei Lu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Qian Luo
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Rui Chen
- Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, 510120, China
| | - Yongxun Zhuansun
- Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, 510120, China
| | - Jie Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Weichao Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Xuezhi Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Luyao Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaolei Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Fang Li
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Qian Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China. .,Institute of Environment and Health, Jianghan University, Wuhan, 430056, China.
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100190, China.
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222
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Wang S, Wang F, Yang L, Li Q, Huang Y, Cheng Z, Chu H, Song Y, Shang L, Hao W, Wei X. Effects of coal-fired PM 2.5 on the expression levels of atherosclerosis-related proteins and the phosphorylation level of MAPK in ApoE -/- mice. BMC Pharmacol Toxicol 2020; 21:34. [PMID: 32384920 PMCID: PMC7206822 DOI: 10.1186/s40360-020-00411-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/30/2020] [Indexed: 12/19/2022] Open
Abstract
Background Air pollution increases the morbidity and mortality of cardiovascular disease (CVD). Atherosclerosis (AS) is the pathological basis of most CVD, and the progression of atherosclerosis and the increase of fragile plaque rupture are the mechanism basis of the relationship between atmospheric particulate pollution and CVD. The aim of the present study was to investigate the effects of coal-fired fine particulate matter (PM2.5) on the expression levels of atherosclerosis-related proteins (von Willebrand factor (vWF), Endothelin-1 (ET-1), intercellular adhesion molecule-1 (ICAM-1), and E-selectin, and to explore the role and mechanism of the progression of atherosclerosis induced by coal-fired PM2.5 via the mitogen-activated protein kinase (MAPK) signaling pathways. Methods Different concentrations of PM2.5 were given to apolipoprotein-E knockout (ApoE−/−) mice via intratracheal instillation for 8 weeks. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of vWF, ET-1 in serum of mice. Immunohistochemistry was used to observe the expression and distribution of ICAM-1 and E-selectin in the aorta of mice. Western blot was used to investigate the phosphoylation of proteins relevant to MAPK signaling pathways. Results Coal-fired PM2.5 exacerbated atherosclerosis induced by a high-fat diet. Fibrous cap formation, foam cells accumulation, and atherosclerotic lesions were observed in the aortas of PM2.5-treated mice. Coal-fired PM2.5 increased the protein levels of ET-1, ICAM-1, and E-selectin, but there was no significant difference in the vWF levels between the PM2.5-treatment mice and the HFD control mice. Coal-fired PM2.5 promoted the phosphorylation of p38, c-Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK) in aortic tissues of mice. Conclusion Coal-derived PM2.5 exacerbated the formation of atherosclerosis in mice, increased the expression levels of atherosclerosis-related proteins in mice serum, and promoted the phosphorylation of proteins relevant to MAPK signaling pathway. Thus, MAPK signaling pathway may play a role in the atherosclerosis pathogenesis induced by Coal-derived PM2.5.
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Affiliation(s)
- Siqi Wang
- Department of Toxicology, School of Public Health, Peking University Health Science Center, No.38 XueYuan Road, HaiDian District, Beijing, 100191, People's Republic of China.,Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, 100191, People's Republic of China
| | - Feifei Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China
| | - Lixin Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China
| | - Qin Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China
| | - Yao Huang
- Department of Toxicology, School of Public Health, Peking University Health Science Center, No.38 XueYuan Road, HaiDian District, Beijing, 100191, People's Republic of China.,Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, 100191, People's Republic of China
| | - Zhiyuan Cheng
- Department of Toxicology, School of Public Health, Peking University Health Science Center, No.38 XueYuan Road, HaiDian District, Beijing, 100191, People's Republic of China.,Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, 100191, People's Republic of China
| | - Hongqian Chu
- Department of Toxicology, School of Public Health, Peking University Health Science Center, No.38 XueYuan Road, HaiDian District, Beijing, 100191, People's Republic of China.,Translational Medicine Center, Beijing Chest Hospital, Capital Medical University, Beijing, 101149, People's Republic of China.,Beijing Key Laboratory in Drug Resistant Tuberculosis Research, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, 101149, People's Republic of China
| | - Yiming Song
- Department of Toxicology, School of Public Health, Peking University Health Science Center, No.38 XueYuan Road, HaiDian District, Beijing, 100191, People's Republic of China.,Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, 100191, People's Republic of China
| | - Lanqin Shang
- Department of Toxicology, School of Public Health, Peking University Health Science Center, No.38 XueYuan Road, HaiDian District, Beijing, 100191, People's Republic of China.,Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, 100191, People's Republic of China
| | - Weidong Hao
- Department of Toxicology, School of Public Health, Peking University Health Science Center, No.38 XueYuan Road, HaiDian District, Beijing, 100191, People's Republic of China.,Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, 100191, People's Republic of China
| | - Xuetao Wei
- Department of Toxicology, School of Public Health, Peking University Health Science Center, No.38 XueYuan Road, HaiDian District, Beijing, 100191, People's Republic of China. .,Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, 100191, People's Republic of China.
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223
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Zhu X, Ji X, Shou Y, Huang Y, Hu Y, Wang H. Recent advances in understanding the mechanisms of PM 2.5-mediated neurodegenerative diseases. Toxicol Lett 2020; 329:31-37. [PMID: 32360789 DOI: 10.1016/j.toxlet.2020.04.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/15/2020] [Accepted: 04/22/2020] [Indexed: 12/12/2022]
Abstract
PM2.5 particles are widely believed to be associated with respiratory and cardiovascular diseases. However, recent studies have reported that PM2.5 may be associated with neurodegenerative diseases. The exact mechanism by which PM2.5 mediates neurotoxicity and cognitive dysfunction is still unclear. In the current work, we collected evidence supporting the association between PM2.5 exposure and development of neurodegenerative disorders. Evidence from epidemiological investigations, animal experiments, and ex vivo cell experiments showed that PM2.5 exposure may lead to neuroinflammation, oxidative stress, mitochondrial dysfunction, neuronal apoptosis, synaptic damage and ultimately neurodegenerative diseases.
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Affiliation(s)
- Xiaozheng Zhu
- School of Medicine, Hangzhou Normal University, China
| | - Xintong Ji
- School of Medicine, Hangzhou Normal University, China; Laboratory of Aging and Cancer Biology of Zhejiang Province, Hangzhou Normal University, China
| | - Yikai Shou
- School of Medicine, Hangzhou Normal University, China; The Children's Hospital, The Institute of Translational Medicine, School of Medicine, Zhejiang University, China
| | - Yilu Huang
- School of Medicine, Hangzhou Normal University, China; Laboratory of Aging and Cancer Biology of Zhejiang Province, Hangzhou Normal University, China
| | - Yu Hu
- School of Medicine, Hangzhou Normal University, China.
| | - Huanhuan Wang
- School of Medicine, Hangzhou Normal University, China; Laboratory of Aging and Cancer Biology of Zhejiang Province, Hangzhou Normal University, China.
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224
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Spatio-Temporal Variations of Satellite-Based PM 2.5 Concentrations and Its Determinants in Xinjiang, Northwest of China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17062157. [PMID: 32213893 PMCID: PMC7143496 DOI: 10.3390/ijerph17062157] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 02/01/2023]
Abstract
With the aggravation of air pollution in recent years, a great deal of research on haze episodes is mainly concentrated on the east-central China. However, fine particulate matter (PM2.5) pollution in northwest China has rarely been discussed. To fill this gap, based on the standard deviational ellipse analysis and spatial autocorrelation statistics method, we explored the spatio-temporal variation and aggregation characteristics of PM2.5 concentrations in Xinjiang from 2001 to 2016. The result showed that annual average PM2.5 concentration was high both in the north slope of Tianshan Mountain and the western Tarim Basin. Furthermore, PM2.5 concentrations on the northern slope of the Tianshan Mountain increased significantly, while showing an obviously decrease in the western Tarim Basin during the period of 2001–2016. Based on the result of the geographical detector method (GDM), population density was the most dominant factor of the spatial distribution of PM2.5 concentrations (q = 0.550), followed by road network density (q = 0.423) and GDP density (q = 0.413). During the study period (2001–2016), the driving force of population density on the distribution of PM2.5 concentrations showed a gradual downward trend. However, other determinants, like DEM (Digital elevation model), NSL (Nighttime stable light), LCT (Land cover type), and NDVI (Normalized Difference Vegetation Index), show significant increased trends. Therefore, further effort is required to reveal the role of landform and vegetation in the spatio-temporal variations of PM2.5 concentrations. Moreover, the local government should take effective measures to control urban sprawl while accelerating economic development.
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225
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Predicting Fine Particulate Matter (PM2.5) in the Greater London Area: An Ensemble Approach using Machine Learning Methods. REMOTE SENSING 2020. [DOI: 10.3390/rs12060914] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Estimating air pollution exposure has long been a challenge for environmental health researchers. Technological advances and novel machine learning methods have allowed us to increase the geographic range and accuracy of exposure models, making them a valuable tool in conducting health studies and identifying hotspots of pollution. Here, we have created a prediction model for daily PM2.5 levels in the Greater London area from 1st January 2005 to 31st December 2013 using an ensemble machine learning approach incorporating satellite aerosol optical depth (AOD), land use, and meteorological data. The predictions were made on a 1 km × 1 km scale over 3960 grid cells. The ensemble included predictions from three different machine learners: a random forest (RF), a gradient boosting machine (GBM), and a k-nearest neighbor (KNN) approach. Our ensemble model performed very well, with a ten-fold cross-validated R2 of 0.828. Of the three machine learners, the random forest outperformed the GBM and KNN. Our model was particularly adept at predicting day-to-day changes in PM2.5 levels with an out-of-sample temporal R2 of 0.882. However, its ability to predict spatial variability was weaker, with a R2 of 0.396. We believe this to be due to the smaller spatial variation in pollutant levels in this area.
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226
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Relationship between atmospheric pollutants and risk of death caused by cardiovascular and respiratory diseases and malignant tumors in Shenyang, China, from 2013 to 2016: an ecological research. Chin Med J (Engl) 2020; 132:2269-2277. [PMID: 31567477 PMCID: PMC6819030 DOI: 10.1097/cm9.0000000000000453] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background: Air pollutants and their pathogenic effects differ among regions and seasons. We aimed to explore the relationship between fine particulate matter (PM2.5), sulfur dioxide (SO2), and ozone-8 hours (O3-8h) concentrations in heating and non-heating seasons and the associated death risk due to cardiovascular diseases (CDs), respiratory diseases (RDs), and malignant tumors. Methods: Data were collected in Shenyang, China, from April 2013 to March 2016. We analyzed the correlation or lagged effect of atmospheric pollutant concentration, meteorological conditions, and death risk due to disorders of the circulatory system, respiratory system, and malignant tumor in heating and non-heating seasons. We also used multivariate models to analyze the association of air pollutants during holidays with the death risk due to the evaluated diseases while considering the presence or absence of meteorological factors. Results: An increase in the daily average SO2 concentration by 10 μg/m3 increased the death risk by CDs, which reached a maximum of 2.0% (95% confidence interval [CI]: 1.3%–2.7%) on lagging day 4 during the non-heating season and 0.2% (95% CI: 0.1%–0.4%) on lagging day 3 during the heating season. The risk of death caused by RDs peaked on lagging day 1 by 0.8% (95% CI: 0.4%–1.2%) during the heating season. An increase in O3-8h concentration by 10 μg/m3 increased the risk of RD-related death on lagging day 2 by 1.0% (95% CI: 0.4%–1.7%) during the non-heating season, which was significantly higher than the 0.1% (95% CI: 0–0.9%) increase during the heating season. Further, an increase in the daily average PM2.5 concentration by 10 μg/m3 increased the risk of death caused by RDs by 0.3% and 0.8% during heating and non-heating seasons, respectively, which peaked on lagging day 0. However, air pollution was not significantly associated with the risk of death caused by malignant tumors. Conclusion: Short-term exposure to PM2.5, SO2, and O3 during the non-heating season resulted in higher risks of CD-related death, followed by RD-related death.
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227
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Wang C, Koutrakis P, Gao X, Baccarelli A, Schwartz J. Associations of annual ambient PM 2.5 components with DNAm PhenoAge acceleration in elderly men: The Normative Aging Study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 258:113690. [PMID: 31818625 PMCID: PMC7044052 DOI: 10.1016/j.envpol.2019.113690] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/10/2019] [Accepted: 11/27/2019] [Indexed: 05/24/2023]
Abstract
Current studies indicate that long-term exposure to ambient fine particulate matter (PM2.5) is related with global mortality, yet no studies have explored relationships of PM2.5 and its species with DNAm PhenoAge acceleration (DNAmPhenoAccel), a new epigenetic biomarker of phenotypic age. We identified which PM2.5 species had association with DNAmPhenoAccel in a one-year exposure window in a longitudinal cohort. We collected whole blood samples from 683 elderly men in the Normative Aging Study between 1999 and 2013 (n = 1254 visits). DNAm PhenoAge was calculated using 513 CpGs retrieved from the Illumina Infinium HumanMethylation450 BeadChip. Daily concentrations of PM2.5 species were measured at a fixed air-quality monitoring site and one-year moving averages were computed. Linear mixed-effect (LME) regression and Bayesian kernel machine (BKM) regression were used to estimate the associations. The covariates included chronological age, body mass index (BMI), cigarette pack years, smoking status, estimated cell types, batch effects etc. Benjamini-Hochberg false discovery rate at a 5% false positive threshold was used to adjust for multiple comparison. During the study period, the mean DNAm PhenoAge and chronological age in our subjects were 68 and 73 years old, respectively. Using LME model, only lead and calcium were significantly associated with DNAmPhenoAccel. For example, an interquartile range (IQR, 0.0011 μg/m3) increase in lead was associated with a 1.29-year [95% confidence interval (CI): 0.47, 2.11] increase in DNAmPhenoAccel. Using BKM model, we selected PM2.5, lead, and silicon to be predictors for DNAmPhenoAccel. A subsequent LME model showed that only lead had significant effect on DNAmPhenoAccel: 1.45-year (95% CI: 0.46, 2.46) increase in DNAmPhenoAccel following an IQR increase in one-year lead. This is the first study that investigates long-term effects of PM2.5 components on DNAmPhenoAccel. The results demonstrate that lead and calcium contained in PM2.5 was robustly associated with DNAmPhenoAccel.
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Affiliation(s)
- Cuicui Wang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA.
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA
| | - Xu Gao
- Department of Environmental Health Sciences, Columbia Mailman School of Public Health, New York, NY, 10032, USA
| | - Andrea Baccarelli
- Department of Environmental Health Sciences, Columbia Mailman School of Public Health, New York, NY, 10032, USA
| | - Joel Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA
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228
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Wang B, Eum KD, Kazemiparkouhi F, Li C, Manjourides J, Pavlu V, Suh H. The impact of long-term PM 2.5 exposure on specific causes of death: exposure-response curves and effect modification among 53 million U.S. Medicare beneficiaries. Environ Health 2020; 19:20. [PMID: 32066433 PMCID: PMC7026980 DOI: 10.1186/s12940-020-00575-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 02/07/2020] [Indexed: 05/07/2023]
Abstract
BACKGROUND The shape of the exposure-response curve for long-term ambient fine particulate (PM2.5) exposure and cause-specific mortality is poorly understood, especially for rural populations and underrepresented minorities. METHODS We used hybrid machine learning and Cox proportional hazard models to assess the association of long-term PM2.5 exposures on specific causes of death for 53 million U.S. Medicare beneficiaries (aged ≥65) from 2000 to 2008. Models included strata for age, sex, race, and ZIP code and controlled for neighborhood socio-economic status (SES) in our main analyses, with approximately 4 billion person-months of follow-up, and additionally for warm season average of 1-h daily maximum ozone exposures in a sensitivity analysis. The impact of non-traffic PM2.5 on mortality was examined using two stage models of PM2.5 and nitrogen dioxide (NO2). RESULTS A 10 μg /m3 increase in 12-month average PM2.5 prior to death was associated with a 5% increase in all-cause mortality, as well as an 8.8, 5.6, and 2.5% increase in all cardiovascular disease (CVD)-, all respiratory-, and all cancer deaths, respectively, in age, gender, race, ZIP code, and SES-adjusted models. PM2.5 exposures, however, were not associated with lung cancer mortality. Results were not sensitive to control for ozone exposures. PM2.5-mortality associations for CVD- and respiratory-related causes were positive and significant for beneficiaries irrespective of their sex, race, age, SES and urbanicity, with no evidence of a lower threshold for response or of lower Risk Ratios (RRs) at low PM2.5 levels. Associations between PM2.5 and CVD and respiratory mortality were linear and were higher for younger, Black and urban beneficiaries, but were largely similar by SES. Risks associated with non-traffic PM2.5 were lower than that for all PM2.5 and were null for respiratory and lung cancer-related deaths. CONCLUSIONS PM2.5 was associated with mortality from CVD, respiratory, and all cancer, but not lung cancer. PM2.5-associated risks of CVD and respiratory mortality were similar across PM2.5 levels, with no evidence of a threshold. Blacks, urban, and younger beneficiaries were most vulnerable to the long-term impacts of PM2.5 on mortality.
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Affiliation(s)
- Bingyu Wang
- Khoury College of Computer Sciences, Northeastern University, 440 Huntington Ave, Boston, MA, 02115, USA.
| | - Ki-Do Eum
- Department of Civil & Environmental Engineering, Tufts University, Medford, MA, USA
| | | | - Cheng Li
- Khoury College of Computer Sciences, Northeastern University, 440 Huntington Ave, Boston, MA, 02115, USA
| | - Justin Manjourides
- Bouvè College of Health Sciences, Northeastern University, Boston, MA, USA
| | - Virgil Pavlu
- Khoury College of Computer Sciences, Northeastern University, 440 Huntington Ave, Boston, MA, 02115, USA
| | - Helen Suh
- Department of Civil & Environmental Engineering, Tufts University, Medford, MA, USA
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229
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Prohaska TR, Peters KE. Impact of Natural Disasters on Health Outcomes and Cancer Among Older Adults. THE GERONTOLOGIST 2020; 59:S50-S56. [PMID: 31100141 DOI: 10.1093/geront/gnz018] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Indexed: 11/13/2022] Open
Abstract
There is growing evidence that older adults exposed to natural disasters are at disproportionate risk for adverse health events such as all-cause mortality, injury, hospital admissions, stroke, displacement, cardiopulmonary distress, stress-related mental health problems, and exacerbation of chronic illnesses. Typically, analyses of the health consequences of natural disasters focus only on the populations impacted for the duration and immediate aftermath of the disaster. With few exceptions, the long-term effects of natural disasters on older adult health have not been examined. This article describes the potential consequences of exposure to natural disasters that contribute to cancer and disruption of cancer care treatment systems for older adults. It is argued that exposures to floods and wildfires in particular present an underestimated threat to the onset and/or progression of cancer and cancer care management in older adults. We propose that these impacts should be examined not only from an emergency preparedness perspective during the event but also from a public health focus that prospectively assesses risks for cancer and other health disparities. Recommendations for comprehensive longitudinal risk assessment and emergency preparedness models that address the full impact of natural disasters on the health and well-being of vulnerable, at risk, older adults are offered.
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Affiliation(s)
- Thomas R Prohaska
- College of Health and Human Services, George Mason University, Fairfax, Virginia
| | - Karen E Peters
- Institute for Health Research and Policy, School of Public Health, University of Illinois at Chicago
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230
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Wang M, Wang S, Wang X, Tian Y, Wu Y, Cao Y, Song J, Wu T, Hu Y. The association between PM 2.5 exposure and daily outpatient visits for allergic rhinitis: evidence from a seriously air-polluted environment. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2020; 64:139-144. [PMID: 31754771 DOI: 10.1007/s00484-019-01804-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/06/2019] [Accepted: 09/13/2019] [Indexed: 05/22/2023]
Abstract
Limited evidence was seen as the association between fine particulate matter (PM2.5) and physician visits for allergic rhinitis (AR), especially in countries with extreme air pollution exposure. This paper addressed the issues about the association between PM2.5 and daily outpatient visits for AR among individuals residing in Beijing, China. Data on daily outpatient visits for AR obtained from Beijing Medical Claim Data for Employees and daily PM2.5 concentrations available from US embassy reports were linked by date from January 1, 2010, to June 30, 2012. A time-series analysis was conducted with a generalized additive Poisson model to assess the association between PM2.5 and AR, adjusting for daily average temperature, relative humidity, day of the week, calendar time, and public holiday. Totally, 229,685 outpatient visits for AR were included in the analysis. The daily mean (SD) concentration of PM2.5 was 99.5 (75.3) μg/m3 during the study period. We found that a 10-μg/m3 increase in PM2.5 content was associated with a 0.47% (95% CI: 0.39% to 0.55%) increase in the number of outpatient visits on the same day. Furthermore, results from subgroup analyses suggested that the association was consistently significant among the groups of different ages (< 65 years and ≥ 65 years) and gender. However, this study failed to find a statistically significant association in the autumn season but found significant positive associations during the spring and summer seasons (P for interaction < 0.001). This study indicated a possible association between PM2.5 and AR outpatients, which may benefit further researches in studying PM2.5 and its influence on diseases in a real and seriously air-polluted context.
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Affiliation(s)
- Mengying Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Siyue Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Xiaowen Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Yaohua Tian
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Yao Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Yaying Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Jing Song
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Tao Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Yonghua Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100191, China.
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231
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Ahn K, Lee H, Lee HD, Kim SC. Extensive evaluation and classification of low-cost dust sensors in laboratory using a newly developed test method. INDOOR AIR 2020; 30:137-146. [PMID: 31639236 PMCID: PMC6972986 DOI: 10.1111/ina.12615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 09/11/2019] [Accepted: 10/21/2019] [Indexed: 06/01/2023]
Abstract
An extensive evaluation of low-cost dust sensors was performed using an exponentially decaying particle concentration. A total of 264 sensors including 27 sensors with light-emitting diodes (LEDs) and 237 sensors with laser lighting sources were tested. Those tested sensors were classified into 4 groups based on the deviation from the reference data obtained by a reference instrument. The response linearities of all the tested samples for PM1 , PM2.5 , and PM10 were in excellent agreement with the reference instrument, except a few samples. For the measurements of PM1 and PM2.5 , the lighting source, that is, LED or laser, did not show any significant difference in overall sensor performance. However, LED-based sensors did not perform well for PM10 measurements. The 32, 24, and 16% of all the tested sensors for PM1 , PM2.5 , and PM10 measurement, respectively, are in the category of Class 1 (reference instrument reading ± 20%) requirement. The performance of the low-cost dust sensors for PM10 measurement was relatively less satisfactory.
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Affiliation(s)
- Kang‐Ho Ahn
- Department of Mechanical EngineeringHanyang UniversityERICAAnsanKorea
| | - Handol Lee
- Department of Mechanical EngineeringHanyang UniversityERICAAnsanKorea
| | - Hae Dong Lee
- Korea Conformity LaboratoriesGeumcheon-Gu, SeoulKorea
| | - Sang Chul Kim
- Korea Conformity LaboratoriesGeumcheon-Gu, SeoulKorea
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232
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Chen C, Liu X, Wang X, Qu W, Li W, Dong L. Effect of air pollution on hospitalization for acute exacerbation of chronic obstructive pulmonary disease, stroke, and myocardial infarction. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:3384-3400. [PMID: 31845265 DOI: 10.1007/s11356-019-07236-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 12/02/2019] [Indexed: 05/03/2023]
Abstract
This study aims to analyze the acute effects of PM2.5, PM10, SO2, NO2, and O3 on hospitalizations for acute exacerbation of chronic obstructive pulmonary disease (AECOPD), stroke, and myocardial infarction (MI) from 2014 to 2017 in Shenyang, China. Hospitalization records for AECOPD (17,655), stroke (276,736) and MI (26,235) and air pollutions concentration data (PM2.5, PM10, SO2, NO2, and O3) were collected. A generalized additive model (GAM) was utilized to determine the impact of air pollutants on the relative risk (RR) of hospitalization for AECOPD, stroke, and MI. Stratified analysis for AECOPD was based on gender and age. It was based on gender, age, hypertension, and diabetes for stroke, and for MI it was based on gender, age, and coronary atherosclerosis. The lag effect for AECOPD in terms of gender analysis occurred at lag3-lag5. The hospitalization risk for stroke with hypertension due to SO2 and NO2 was greater than that of stroke without hypertension. The risk of hospitalization for stroke with hypertension as a comorbidity due to O3 was lower than without hypertension. The risk of hospitalization for MI combined with coronary atherosclerosis due to PM2.5, PM10, or NO2 was higher than that of hospitalizations for MI without coronary atherosclerosis. Air pollution increased the rate of hospitalization for AECOPD. SO2 and O3 appeared protective for stroke patients with coronary atherosclerosis. PM2.5, PM10, and NO2 had no influence on total hospitalization for myocardial infarction.
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Affiliation(s)
- Cai Chen
- Biomedical Engineering Institute, School of Control Science and Engineering, Shandong University, Jinan, 250061, China
| | - Xuejian Liu
- The First General Internal Medicine, Shengjing Hospital, China Medical University, No.16 Puhe Road, Shenbei New District, Shenyang City, 110000, Liaoning Province, China
| | - Xianfeng Wang
- PFLMET Experimental Center, Shandong University, Jinan, People's Republic of China
| | - Wenxiu Qu
- The First General Internal Medicine, Shengjing Hospital, China Medical University, No.16 Puhe Road, Shenbei New District, Shenyang City, 110000, Liaoning Province, China.
| | - Wei Li
- Biomedical Engineering Institute, School of Control Science and Engineering, Shandong University, Jinan, 250061, China.
| | - Leilei Dong
- Biomedical Engineering Institute, School of Control Science and Engineering, Shandong University, Jinan, 250061, China
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233
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Wang C, O'Brien KM, Xu Z, Sandler DP, Taylor JA, Weinberg CR. Long-term ambient fine particulate matter and DNA methylation in inflammation pathways: results from the Sister Study. Epigenetics 2019; 15:524-535. [PMID: 31822152 DOI: 10.1080/15592294.2019.1699894] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Although underlying mechanisms of long-term exposure to air pollution and cardiovascular disease remain obscure, effects might partially act through changes in DNA methylation. We examined the associations between long-term ambient fine particulate matter (PM2.5) and methylation, considering both a global measure and methylation at several specific inflammation-related loci, in two random sub-cohorts selected from a nationwide prospective study of US women. In one sub-cohort we measured long interspersed nucleotide element (LINE-1); in the other, we measured methylation at three candidates CpG loci related to inflammatory pathways [tumour necrosis factor-alpha (TNF-α) and toll-like receptor-2 (TLR-2)]. Annual average contemporaneous ambient PM2.5 concentrations were estimated for the current residence. We used both classical least-squares and quantile regression models to estimate the long-term effects. The women in sub-cohorts 1 (n = 491) and 2 (n = 882) had mean ages of 55.8 and 56.7, respectively. Neither modelling approach showed an association between long-term PM2.5 and LINE-1 methylation or between PM2.5 and either of the two CpG sites in TLR-2. Using linear regression, there was an estimated change of -6.5% (95% confidence interval CI: -13.34%, 0.35%) in mean methylation of TNF-α per 5 µg/m3 increase in PM2.5. Quantile regression showed that the downward shift was mainly in the lower half of the distribution of DNA methylation. Long-term residence in regions with higher ambient PM2.5 may be associated with increased TNF-α through a reduction in methylation, particularly in the lower tail. Epigenetic markers and quantile regression might provide insight into mechanisms underlying the relationship between air pollution and cardiovascular disease.
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Affiliation(s)
- Cuicui Wang
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.,Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Katie M O'Brien
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.,Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Zongli Xu
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Jack A Taylor
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Clarice R Weinberg
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
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234
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Yang Y, Yang T, Liu S, Cao Z, Zhao Y, Su X, Liao Z, Teng X, Hua J. Concentrated ambient PM 2.5 exposure affects mice sperm quality and testosterone biosynthesis. PeerJ 2019; 7:e8109. [PMID: 31799077 PMCID: PMC6885350 DOI: 10.7717/peerj.8109] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 10/28/2019] [Indexed: 12/18/2022] Open
Abstract
Background Studies suggested that PM2.5 exposure could lead to adverse reproductive effects on male animals. However, the underlying mechanism is still not clear. Besides, animals in the majority of previous studies were exposed to PM2.5 through intratracheal instillation which should be improved. In addition, limited amount of research has been conducted in China where the PM2.5 concentration is higher and the PM2.5 components are different. The aim of this work is to explore the effects of concentrated ambient PM2.5 (CAP) on mice sperm quality and testosterone biosynthesis. Methods A total of 12 male C57BL/6 mice were exposed to filtered air (FA) or CAP for 125 days using the Shanghai Meteorological and Environmental Animal Exposure System. The mice sperm concentration, sperm motility, DNA fragmentation index, high DNA stainability and plasma testosterone were analyzed. Testicular histology and sperm morphology were observed through optical microscope. Testosterone biosynthesis related gene expressions were analyzed using real-time PCR, including cytochrome P450 CHOL side-chain cleavage enzyme (P450scc), steroidogenic acute regulatory protein (StAR), 3β-hydroxysteroid dehydrogenase (3β HSD), 17β-hydroxysteroid dehydrogenase, cytochrome P450 aromatase (P450arom), estrogen receptor (ER), androgen receptor (AR) and follicle stimulating hormone receptor (FSHR). Results Exposure to CAP resulted in disturbance of various stages of spermatogenesis and significant higher percentage of abnormal sperm (FA vs. CAP: 24.37% vs. 44.83%) in mice testis. CAP exposure significantly decreased sperm concentration (43.00 × 106 vs. 25.33 × 106) and motility (PR: 63.58% vs. 55.15%; PR + NP: 84.00% vs. 77.08%) in epididymis. Plasma testosterone concentration were significantly declined (0.28 ng/ml vs. 0.69 ng/ml) under CAP exposure. Notably, the levels of testosterone biosynthesis related genes, StAR, P450scc, P450arom, ER and FSHR were significantly decreased with CAP exposure. Conclusion Concentrated ambient PM2.5 exposure altered mice sperm concentration, motility and morphology, which might be mediated primarily by the decline in testosterone concentration and testosterone biosynthesis process.
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Affiliation(s)
- Yingying Yang
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Tingting Yang
- Department of Social Medicine, School of Public Health, Fudan University, Shanghai, China
| | - Shengxin Liu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Zhijuan Cao
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yan Zhao
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiujuan Su
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zehuan Liao
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore.,Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Xiaoming Teng
- Department of Assisted Reproductive Medicine, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jing Hua
- Department of Women and Children's Health Care, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
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235
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Ning J, Li P, Zhang B, Han B, Su X, Wang Q, Wang X, Li B, Kang H, Zhou L, Chu C, Zhang N, Pang Y, Niu Y, Zhang R. miRNAs deregulation in serum of mice is associated with lung cancer related pathway deregulation induced by PM2.5. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 254:112875. [PMID: 31377334 DOI: 10.1016/j.envpol.2019.07.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/23/2019] [Accepted: 07/09/2019] [Indexed: 05/28/2023]
Abstract
Ambient fine particulate matter (PM2.5) as an environmental pollution has been associated with the lung cancer. However, the mechanism of epigenetics such as miRNAs deregulation between PM2.5-exposure and lung cancer has not been elucidated clearly. Twenty C57BL/6 mice were divided randomly into 2 groups and exposed to the filtered air (FA) and the concentrated air (CA), respectively. The FA mice were exposed to filtered air in chambers with a high-efficient particulate air filter (HEPA-filter), and the CA mice were exposed to concentration ambient PM2.5. The total duration of exposure was performed 6 h per day from December 1st, 2017 to January 27th, 2018. The mice exposed 900.21 μg/m3 PM2.5 for 6 h per day in CA chamber, which was nearly equaled to 225.05 μg/m3 for 24-h calculatingly. After exposure, the serum miRNAs levels were detected by microarray. Genetic and pathological alterations in lung of mice with/without PM2.5 exposure were detected. 38 differential miRNAs in serum of mice were found after PM2.5 exposure for 8 weeks. Among of them, 13 miRNAs related with lung cancer were consistent in serum and lung of mice. The target genes of 13 deregulated miRNAs including CRK, NR2F2, VIM, RASSF1, CCND2, PRKCA, SIRT1, CDK6, MAP3K7, HIF1A, UBE2V2, ATG10, BAX, E2F1, RASSF5 and CTNNB1, could involve in the pathway of lung cancer developing. Compared with the FA group, the significantly increases of histopathological changes, ROS and DNA damage were observed in lung of mice in CA group. Our study suggested that miRNAs in serum could be identified as candidate biomarkers to predict the lung cancer development during early PM2.5 exposure.
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Affiliation(s)
- Jie Ning
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Peiyuan Li
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Boyuan Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Bin Han
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Xuan Su
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Qian Wang
- Experimental Center, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Xiurong Wang
- Department of Immunology, School of Basic Medicine, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Binghua Li
- Department of Occupation Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050051, PR China
| | - Hui Kang
- Department of Occupation Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050051, PR China
| | - Lixiao Zhou
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Chen Chu
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Ning Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Yaxian Pang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Yujie Niu
- Department of Occupation Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050051, PR China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, 050017, PR China
| | - Rong Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, PR China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, 050017, PR China.
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236
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Sarkar C, Zhang B, Ni M, Kumari S, Bauermeister S, Gallacher J, Webster C. Environmental correlates of chronic obstructive pulmonary disease in 96 779 participants from the UK Biobank: a cross-sectional, observational study. Lancet Planet Health 2019; 3:e478-e490. [PMID: 31777339 DOI: 10.1016/s2542-5196(19)30214-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The role of environmental exposures in chronic obstructive pulmonary disease (COPD) remains inconclusive. We examined the association between environmental exposures (PM2·5, greenness, and urbanicity) and COPD prevalence using the UK Biobank cohort data to identify key built environment correlates of COPD. METHODS In this cross-sectional, observational study we used baseline data for UK Biobank participants. Included participants were aged 39 years and older, white, had available spirometry data, and had complete data for phenotypes and exposures. COPD was defined by spirometry with the 2017 Global Initiative for Chronic Obstructive Lung Disease criteria. Environmental exposures were PM2·5 derived from monitoring data and interpolated using land-use regression at the participants' geocoded residential addresses. Built environment metrics of residential greenness were modelled in terms of normalised difference vegetation index from remotely sensed colour infrared data within a 500 m residential catchment, and an urbanicity index derived from spatial analyses and measured with a 1 km buffer around each participant's residential address. Logistic regression models examined the associations between environmental exposures and COPD prevalence adjusting for a range of confounders. Subgroup analyses by urbanicity and effect modification by white blood cell count as an inflammatory marker were also done. FINDINGS We assessed 96 779 participants recruited between April 4, 2006, and Oct 1, 2010, of which 5391 participants had COPD with a prevalence of 5·6%. Each 10 μg/m3 increment in ambient PM2·5 exposure at a participant's residential location was associated with higher odds of COPD (odds ratio 1·55, 95% CI 1·14-2·10). Among the built environment metrics, urbanicity was associated with higher odds of COPD (1·05, 1·01-1·08 per interquartile increment), whereas residential greenness was protective, being associated with lower odds of COPD (0·89, 0·84-0·93 for each interquartile increment in greenness). The results remained consistent in models of COPD defined as per lower limit of normal criteria. The highest quartile of white blood cell count was associated with lower lung function and higher COPD risk with a significant interaction between PM2·5 and white blood cell count only in the model of lung function (p=0·0003). INTERPRETATION In this study of the built environment and COPD, to our knowledge the largest done in the UK, we found that exposure to ambient PM2·5 and urbanicity were associated with a higher risk of COPD. Residing in greener areas, as measured by normalised difference vegetation index, was associated with lower odds of COPD, suggesting the potential value of urban planning and design in minimising or offsetting environmental risks for the prevention and management of COPD. FUNDING University of Hong Kong, UK Biobank, and UK Economic & Social Research Council.
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Affiliation(s)
- Chinmoy Sarkar
- Healthy High Density Cities Lab, HKUrbanLab, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China; School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China.
| | - Bing Zhang
- Healthy High Density Cities Lab, HKUrbanLab, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
| | - Michael Ni
- Healthy High Density Cities Lab, HKUrbanLab, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China; School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
| | - Sarika Kumari
- Healthy High Density Cities Lab, HKUrbanLab, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
| | - Sarah Bauermeister
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK
| | - John Gallacher
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK
| | - Chris Webster
- Healthy High Density Cities Lab, HKUrbanLab, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
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237
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Yang P, Zhang Y, Wang K, Doraiswamy P, Cho SH. Health impacts and cost-benefit analyses of surface O 3 and PM 2.5 over the U.S. under future climate and emission scenarios. ENVIRONMENTAL RESEARCH 2019; 178:108687. [PMID: 31479977 DOI: 10.1016/j.envres.2019.108687] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 07/12/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
Health impacts of surface ozone (O3) and fine particulate matter (PM2.5) are of major concern worldwide. In this work, the Environmental Benefits Mapping and Analysis Program tool is applied to estimate the health and economic impacts of projected changes in O3 and PM2.5 in the U.S. in future (2046-2055) decade relative to current (2001-2010) decade under the Representative Concentration Pathway (RCP) 4.5 and 8.5 climate scenarios. Future annual-mean O3 reductions under RCP 4.5 prevent ~1,800 all-cause mortality, 761 respiratory hospital admissions (HA), and ~1.2 million school loss days annually, and result in economic benefits of ~16 billion, 29 million, and 132 million U.S. dollars (USD), respectively. By contrast, the projected future annual-mean O3 increases under RCP8.5 cause ~2,400 mortality, 941 respiratory HA, and ~1.6 million school loss days annually and result in economic disbenefits of ~21 billion, 36 million, and 175 million USD, respectively. Health benefits of reduced O3 double under RCP4.5 and health dis-benefits of increased O3 increase by 1.5 times under RCP8.5 in future with 2050 population and baseline incidence rate. Because of the reduction in projected future PM2.5 over CONUS under both scenarios, the annual avoided all-cause deaths, cardiovascular HA, respiratory HA, and work loss days are ~63,000 and ~83,000, ~5,300 and ~7,000, ~12,000 and ~15,000, and ~7.8 million and ~10 million, respectively, leading to economic benefits of ~560 and ~740 billion, ~240 and ~320 million, ~450 and ~590 million, and ~1,400 and ~1,900 million USD for RCP4.5 and 8.5, respectively. Health benefits of reduced PM2.5 for future almost double under both scenarios with the largest benefits in urban areas. RCP8.5 projects larger health and economic benefits due to a greater reduction in PM2.5 but with a warmer atmosphere and higher O3 pollution than RCP4.5. RCP4.5 leads to multiple-benefit goals including reduced O3 and PM2.5, reduced mortality and morbidity, and saved costs. Greater reduction in future PM2.5 under RCP4.5 should be considered to achieve larger multi-benefits.
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Affiliation(s)
- Peilin Yang
- Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC, 27695, USA
| | - Yang Zhang
- Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC, 27695, USA.
| | - Kai Wang
- Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC, 27695, USA
| | - Prakash Doraiswamy
- Air Quality and Exposure Center, RTI International, Durham, NC, 27709, USA
| | - Seung-Hyun Cho
- Air Quality and Exposure Center, RTI International, Durham, NC, 27709, USA
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238
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Dai P, Shen D, Shen J, Tang Q, Xi M, Li Y, Li C. The roles of Nrf2 and autophagy in modulating inflammation mediated by TLR4 - NFκB in A549 cell exposed to layer house particulate matter 2.5 (PM 2.5). CHEMOSPHERE 2019; 235:1134-1145. [PMID: 31561304 DOI: 10.1016/j.chemosphere.2019.07.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/23/2019] [Accepted: 07/01/2019] [Indexed: 06/10/2023]
Abstract
Particulate matter (PM) from layer house has adverse effect on people and chicken respiratory health, which can further influence animal performance and reduce production efficiency. However, little study focus on the respiratory inflammation induced by PM2.5 from layer house and the underlying mechanism also unclear. In this study, human adenocarcinoma alveolar basal epithelial cells (A549 cell) was subjected to the PM2.5 from layer house to evaluate the inflammation reaction caused by PM2.5 and explore the role of Nrf2 and autophagy in regulating the inflammation. Results showed that the viability of A549 cell decreased in a time - and concentration - dependent manner after PM2.5 treatment. TNFα, IL6, and IL8 increased significantly treated with PM2.5 at 12 h. RNA sequencing indicated differentially expressed genes were enriched in immune system process, oxidative stress (OS), endoplasmic reticulum stress (ERS), and autophagy. Further studies showed TLR4 - NFκB p65 signal pathway involved in the inflammation reaction caused by PM2.5. The overexpression of Nrf2 decreased the level of TNFα, IL6, IL8 markedly as well as the level of NFκB p65 and NFκB pp65. OS and ERS were also limited under overactivation of Nrf2 in PM2.5 treated cells. Autophagy induced by PM2.5 promoted the inflammation through increasing the level of NFκB p65 and NFκB pp65. Autophagy deficient strengthened the expression of Nrf2. Collectively, our study revealed Nrf2 prevents inflammation caused by layer house PM2.5 stimulation, however, autophagy exerts a promotive role in TLR4 - NFκB p65 mediating inflammation in A549 cell.
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Affiliation(s)
- Pengyuan Dai
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, PR China
| | - Dan Shen
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, PR China
| | - Jiakun Shen
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, PR China
| | - Qian Tang
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, PR China
| | - Mengxue Xi
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, PR China
| | - Yansen Li
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, PR China
| | - Chunmei Li
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, PR China.
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239
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Brauer M, Brook JR, Christidis T, Chu Y, Crouse DL, Erickson A, Hystad P, Li C, Martin RV, Meng J, Pappin AJ, Pinault LL, Tjepkema M, van Donkelaar A, Weichenthal S, Burnett RT. Mortality-Air Pollution Associations in Low-Exposure Environments (MAPLE): Phase 1. Res Rep Health Eff Inst 2019; 2019:1-87. [PMID: 31909580 PMCID: PMC7334864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
Abstract
INTRODUCTION Fine particulate matter (particulate matter ≤2.5 μm in aerodynamic diameter, or PM2.5) is associated with mortality, but the lower range of relevant concentrations is unknown. Novel satellite-derived estimates of outdoor PM2.5 concentrations were applied to several large population-based cohorts, and the shape of the relationship with nonaccidental mortality was characterized, with emphasis on the low concentrations (<12 μg/m3) observed throughout Canada. METHODS Annual satellite-derived estimates of outdoor PM2.5 concentrations were developed at 1-km2 spatial resolution across Canada for 2000-2016 and backcasted to 1981 using remote sensing, chemical transport models, and ground monitoring data. Targeted ground-based measurements were conducted to measure the relationship between columnar aerosol optical depth (AOD) and ground-level PM2.5. Both existing and targeted ground-based measurements were analyzed to develop improved exposure data sets for subsequent epidemiological analyses. Residential histories derived from annual tax records were used to estimate PM2.5 exposures for subjects whose ages ranged from 25 to 90 years. About 8.5 million were from three Canadian Census Health and Environment Cohort (CanCHEC) analytic files and another 540,900 were Canadian Community Health Survey (CCHS) participants. Mortality was linked through the year 2016. Hazard ratios (HR) were estimated with Cox Proportional Hazard models using a 3-year moving average exposure with a 1-year lag, with the year of follow-up as the time axis. All models were stratified by 5-year age groups, sex, and immigrant status. Covariates were based on directed acyclical graphs (DAG), and included contextual variables (airshed, community size, neighborhood dependence, neighborhood deprivation, ethnic concentration, neighborhood instability, and urban form). A second model was examined including the DAG-based covariates as well as all subject-level risk factors (income, education, marital status, indigenous identity, employment status, occupational class, and visible minority status) available in each cohort. Additional subject-level behavioral covariates (fruit and vegetable consumption, leisure exercise frequency, alcohol consumption, smoking, and body mass index [BMI]) were included in the CCHS analysis. Sensitivity analyses evaluated adjustment for covariates and gaseous copollutants (nitrogen dioxide [NO2] and ozone [O3]), as well as exposure time windows and spatial scales. Estimates were evaluated across strata of age, sex, and immigrant status. The shape of the PM2.5-mortality association was examined by first fitting restricted cubic splines (RCS) with a large number of knots and then fitting the shape-constrained health impact function (SCHIF) to the RCS predictions and their standard errors (SE). This method provides graphical results indicating the RCS predictions, as a nonparametric means of characterizing the concentration-response relationship in detail and the resulting mean SCHIF and accompanying uncertainty as a parametric summary. Sensitivity analyses were conducted in the CCHS cohort to evaluate the potential influence of unmeasured covariates on air pollution risk estimates. Specifically, survival models with all available risk factors were fit and compared with models that omitted covariates not available in the CanCHEC cohorts. In addition, the PM2.5 risk estimate in the CanCHEC cohort was indirectly adjusted for multiple individual-level risk factors by estimating the association between PM2.5 and these covariates within the CCHS. RESULTS Satellite-derived PM2.5 estimates were low and highly correlated with ground monitors. HR estimates (per 10-μg/m3 increase in PM2.5) were similar for the 1991 (1.041, 95% confidence interval [CI]: 1.016-1.066) and 1996 (1.041, 1.024-1.059) CanCHEC cohorts with a larger estimate observed for the 2001 cohort (1.084, 1.060-1.108). The pooled cohort HR estimate was 1.053 (1.041-1.065). In the CCHS an analogous model indicated a HR of 1.13 (95% CI: 1.06-1.21), which was reduced slightly with the addition of behavioral covariates (1.11, 1.04-1.18). In each of the CanCHEC cohorts, the RCS increased rapidly over lower concentrations, slightly declining between the 25th and 75th percentiles and then increasing beyond the 75th percentile. The steepness of the increase in the RCS over lower concentrations diminished as the cohort start date increased. The SCHIFs displayed a supralinear association in each of the three CanCHEC cohorts and in the CCHS cohort. In sensitivity analyses conducted with the 2001 CanCHEC, longer moving averages (1, 3, and 8 years) and smaller spatial scales (1 km2 vs. 10 km2) of exposure assignment resulted in larger associations between PM2.5 and mortality. In both the CCHS and CanCHEC analyses, the relationship between nonaccidental mortality and PM2.5 was attenuated when O3 or a weighted measure of oxidant gases was included in models. In the CCHS analysis, but not in CanCHEC, PM2.5 HRs were also attenuated by the inclusion of NO2. Application of the indirect adjustment and comparisons within the CCHS analysis suggests that missing data on behavioral risk factors for mortality had little impact on the magnitude of PM2.5-mortality associations. While immigrants displayed improved overall survival compared with those born in Canada, their sensitivity to PM2.5 was similar to or larger than that for nonimmigrants, with differences between immigrants and nonimmigrants decreasing in the more recent cohorts. CONCLUSIONS In several large population-based cohorts exposed to low levels of air pollution, consistent associations were observed between PM2.5 and nonaccidental mortality for concentrations as low as 5 μg/m3. This relationship was supralinear with no apparent threshold or sublinear association.
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Affiliation(s)
- M Brauer
- University of British Columbia, Vancouver, British Columbia, Canada
| | - J R Brook
- University of Toronto, Toronto, Ontario, Canada
| | - T Christidis
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - Y Chu
- University of British Columbia, Vancouver, British Columbia, Canada
| | - D L Crouse
- University of New Brunswick, Fredericton, New Brunswick, Canada
- New Brunswick Institute for Research, Data, and Training, Fredericton, New Brunswick, Canada
| | - A Erickson
- University of British Columbia, Vancouver, British Columbia, Canada
| | - P Hystad
- Oregon State University, Corvallis, Oregon, U.S.A
| | - C Li
- Dalhousie University, Halifax, Nova Scotia, Canada
| | - R V Martin
- Dalhousie University, Halifax, Nova Scotia, Canada
- Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, U.S.A
| | - J Meng
- Dalhousie University, Halifax, Nova Scotia, Canada
| | - A J Pappin
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - L L Pinault
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - M Tjepkema
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | | | | | - R T Burnett
- Population Studies Division, Health Canada, Ottawa, Ontario, Canada
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240
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Nabizadeh R, Yousefian F, Moghadam VK, Hadei M. Characteristics of cohort studies of long-term exposure to PM 2.5: a systematic review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:30755-30771. [PMID: 31494855 DOI: 10.1007/s11356-019-06382-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 08/29/2019] [Indexed: 06/10/2023]
Abstract
This study systematically reviewed all the cohort studies investigating the relationship between long-term exposure to PM2.5 and any health outcome until February 2018. We searched ISI Web of Knowledge, Pubmed, and Scopus databases for peer-reviewed journal research articles published in English. We only extracted the results of the single-pollutant main analysis of each study, excluding the effect modifications and sensitivity analyses. Out of the initial 9523 articles, 203 articles were ultimately included for analysis. Based on the different characteristics of studies such as study design, outcome, exposure assessment method, and statistical model, we calculated the number and relative frequency of analyses with statistically significant and insignificant results. Most of the studies were prospective (84.8%), assessed both genders (66.5%), and focused on a specific age range (86.8%). Most of the articles (78.1%) had used modeling techniques for exposure assessment of cohorts' participants. Among the total of 317 health outcomes, the most investigated outcomes include mortality due to cardiovascular disease (6.19%), all causes (5.48%), lung cancer (4.00%), ischemic heart disease (3.50%), and non-accidental causes (3.50%). The percentage of analyses with statistically significant results were higher among studies that used prospective design, mortality as the outcome, fixed stations as exposure assessment method, hazard ratio as risk measure, and no covariate adjustment. We can somehow conclude that the choice of right characteristics for cohort studies can make a difference in their results.
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Affiliation(s)
- Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Yousefian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Kazemi Moghadam
- Department of Environmental Health Engineering, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Mostafa Hadei
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran.
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241
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Papadogeorgou G, Kioumourtzoglou MA, Braun D, Zanobetti A. Low Levels of Air Pollution and Health: Effect Estimates, Methodological Challenges, and Future Directions. Curr Environ Health Rep 2019; 6:105-115. [PMID: 31090042 PMCID: PMC7161422 DOI: 10.1007/s40572-019-00235-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE OF REVIEW Fine particle (PM2.5) levels have been decreasing in the USA over the past decades. Our goal was to assess the current literature to characterize the association between PM2.5 and adverse health at low exposure levels. RECENT FINDINGS We reviewed 26 papers that examined the association between short- and long-term exposure to PM2.5 and cardio-respiratory morbidity and mortality. There is evidence suggesting that these associations are stronger at lower levels. However, there are certain methodological and interpretational limitations specific to studies of low PM2.5 levels, and further methodological development is warranted. There is strong agreement across studies that air pollution effects on adverse health are still observable at low concentrations, even well below current US standards. These findings suggest that US standards need to be reevaluated, given that further improving air quality has the potential of benefiting public health.
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Affiliation(s)
| | | | - Danielle Braun
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Antonella Zanobetti
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Landmark Center, Suite 404M, P.O. Box 15698, Boston, MA, 02215, USA.
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242
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Lequy E, Siemiatycki J, Leblond S, Meyer C, Zhivin S, Vienneau D, de Hoogh K, Goldberg M, Zins M, Jacquemin B. Long-term exposure to atmospheric metals assessed by mosses and mortality in France. ENVIRONMENT INTERNATIONAL 2019; 129:145-153. [PMID: 31128435 DOI: 10.1016/j.envint.2019.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 04/26/2019] [Accepted: 05/02/2019] [Indexed: 05/22/2023]
Abstract
BACKGROUND Long-term exposure to air pollution affects health, but little is known about exposure to atmospheric metals. Estimating exposure to atmospheric metals across large spatial areas remains challenging. Metal concentrations in mosses could constitute a useful proxy. Here, we linked moss biomonitoring and epidemiological data to investigate the associations between long-term exposure to metals and mortality. METHODS We modelled and mapped 13 atmospheric metals from a 20-year national moss biomonitoring program to derive exposure estimates across France. In the population-based Gazel cohort, we included 11,382 participants from low to intermediate population density areas and assigned modelled metals to their residential addresses. We distinguished between airborne metals that are primarily of natural origin and those primarily of anthropogenic origin. Associations were estimated between exposure to metals and mortality (natural-cause, cardiovascular and respiratory), using Cox models, with confounder adjustment at individual level. FINDINGS Between 1996 and 2017, there were 1313 deaths in the cohort (including 181 cardiovascular and 33 respiratory). Exposure to the anthropogenic metals was associated with an increased risk of natural-cause mortality (hazard ratio of 1.16 [1.08-1.24] per interquartile range of exposure), while metals from natural sources were not. INTERPRETATION Some atmospheric anthropogenic metals may be associated with excess mortality - even in areas with relatively low levels of exposure to air pollution. Consistent with the previous literature, our findings support the use of moss biomonitoring as a tool to assess health effects of air pollution exposure at individual level.
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Affiliation(s)
- Emeline Lequy
- INSERM, U1168, VIMA: Aging and Chronic Diseases, Epidemiological and Public Health Approaches, F-94807 Villejuif, France; University of Versailles St-Quentin-en-Yvelines, UMR-S 1168, F-78180 Montigny-le-Bretonneux, France; INSERM, UMS 011, F-94807 Villejuif, France
| | - Jack Siemiatycki
- CRCHUM (Centre de recherche du CHUM) and Department of Social and Preventive Medicine, Université de Montréal, QC, Canada
| | - Sébastien Leblond
- UMS 2006 PatriNat, National Museum of Natural History, 12 rue Buffon, F-75005 Paris, France
| | - Caroline Meyer
- UMS 2006 PatriNat, National Museum of Natural History, 12 rue Buffon, F-75005 Paris, France
| | | | - Danielle Vienneau
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Kees de Hoogh
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Marcel Goldberg
- INSERM, UMS 011, F-94807 Villejuif, France; Université Paris Descartes, 12, rue de l'école de médecine, F-75006 Paris, France
| | - Marie Zins
- INSERM, UMS 011, F-94807 Villejuif, France; Université Paris Descartes, 12, rue de l'école de médecine, F-75006 Paris, France
| | - Bénédicte Jacquemin
- INSERM, U1168, VIMA: Aging and Chronic Diseases, Epidemiological and Public Health Approaches, F-94807 Villejuif, France; University of Versailles St-Quentin-en-Yvelines, UMR-S 1168, F-78180 Montigny-le-Bretonneux, France; ISGlobal-Institut de Salut Global de Barcelona, 08003 Barcelona, Spain; University Pompeu Fabra (UPF), 08003 Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), 08003 Barcelona, Spain; Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France.
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243
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Miao X, Li W, Niu B, Li J, Sun J, Qin M, Zhou Z. Mitochondrial dysfunction in endothelial cells induced by airborne fine particulate matter (<2.5 μm). J Appl Toxicol 2019; 39:1424-1432. [DOI: 10.1002/jat.3828] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 05/05/2019] [Accepted: 05/05/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaoyan Miao
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Wenke Li
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Bingyu Niu
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Jiangshuai Li
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Jingjie Sun
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Mengnan Qin
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Zhixiang Zhou
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
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244
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Zierold KM, Hagemeyer AN, Sears CG. Health symptoms among adults living near a coal-burning power plant. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2019; 75:289-296. [PMID: 31267832 DOI: 10.1080/19338244.2019.1633992] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Coal ash is a waste product generated when coal is burned for energy. The purpose of this study was to assess health symptoms in adults living near a coal-burning power plant and compare the symptoms to a non-exposed population. A community-based mixed methods study was conducted with four neighborhoods adjacent to a coal-burning power plant. The comparison population was not exposed to coal ash and did not live near a coal-burning power plant. Adults who lived near the coal-burning power plant were significantly more likely to suffer from respiratory (AOR = 5.27, 95% CI = 2.16-12.0), gingiva (AOR = 2.46, 95% CI = 1.46-4.15), and skin symptoms (AOR = 3.37, 95% CI = 2.09-5.43). Results suggest that health symptoms may develop in people living near coal-burning power plants.
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Affiliation(s)
- K M Zierold
- School of Public Health, Department of Epidemiology and Population Health, University of Louisville, Louisville, Kentucky, USA
| | | | - C G Sears
- Brown University, Providence, Rhode Island, USA
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245
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Wang H, Shen X, Liu J, Wu C, Gao J, Zhang Z, Zhang F, Ding W, Lu Z. The effect of exposure time and concentration of airborne PM 2.5 on lung injury in mice: A transcriptome analysis. Redox Biol 2019; 26:101264. [PMID: 31279222 PMCID: PMC6612658 DOI: 10.1016/j.redox.2019.101264] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/18/2019] [Accepted: 06/30/2019] [Indexed: 12/22/2022] Open
Abstract
The association between airborne fine particulate matter (PM2.5) concentration and the risk of respiratory diseases has been well documented by epidemiological studies. However, the mechanism underlying the harmful effect of PM2.5 has not been fully understood. In this study, we exposed the C57BL/6J mice to airborne PM2.5 for 3 months (mean daily concentration ~50 or ~110 μg/m3, defined as PM2.5–3L or PM2.5–3H) or 6 months (mean daily concentration ~50 μg/m3, defined as PM2.5–6L) through a whole-body exposure system. Histological and biochemical analysis revealed that PM2.5–3H exposure caused more severe lung injury than did PM2.5–3L, and the difference was greater than that of PM2.5–6L vs PM2.5–3L exposure. With RNA-sequencing technique, we found that the lungs exposed with different concentration of PM2.5 have distinct transcriptional profiles. PM2.5–3H exposure caused more differentially expressed genes (DEGs) in lungs than did PM2.5–3L or PM2.5–6L. The DEGs induced by PM2.5–3L or PM2.5–6L exposure were mainly enriched in immune pathways, including Hematopoietic cell lineage and Cytokine-cytokine receptor interaction, while the DEGs induced by PM2.5–3H exposure were mainly enriched in cardiovascular disease pathways, including Hypertrophic cardiomyopathy and Dilated cardiomyopathy. In addition, we found that upregulation of Cd5l and reduction of Hspa1 and peroxiredoxin-4 was associated with PM2.5-induced pulmonary inflammation and oxidative stress. These results may provide new insight into the cytotoxicity mechanism of PM2.5 and help to development of new strategies to attenuate air pollution associated respiratory disease. High concentration of PM2.5 has a profound effect on lung injury and gene expression profile. RNA-Seq analysis revealed that PM2.5 exposure affects immune and cardiovascular pathways. PM2.5 increases Cd5l expression and decreases Hspa1 and Prdx4 expression in a concentration dependently manner.
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Affiliation(s)
- Hongyun Wang
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiyue Shen
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jingli Liu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunyan Wu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junling Gao
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zezhong Zhang
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fang Zhang
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenjun Ding
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zhongbing Lu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China.
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246
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Luo F, Wei H, Guo H, Li Y, Feng Y, Bian Q, Wang Y. LncRNA MALAT1, an lncRNA acting via the miR-204/ZEB1 pathway, mediates the EMT induced by organic extract of PM2.5 in lung bronchial epithelial cells. Am J Physiol Lung Cell Mol Physiol 2019; 317:L87-L98. [DOI: 10.1152/ajplung.00073.2019] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Extensive cohort studies have explored the hazards of particulate matter with aerodynamic diameter 2.5 μm or smaller (PM2.5) to human respiratory health; however, the molecular mechanisms for PM2.5 carcinogenesis are poorly understood. Long non-coding RNAs (lncRNAs) are involved in various pathophysiological processes. In the present study, we investigated the effect of PM2.5 on the epithelial-mesenchymal transition (EMT) in lung bronchial epithelial cells and the underlying mechanisms mediated by an lncRNA. Organic extracts of PM2.5 from Shanghai were used to treat human bronchial epithelial cell lines (HBE and BEAS-2B). The PM2.5 organic extracts induced the EMT and cell transformation. High levels of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), mediated by NF-κB, were involved in the EMT process. For both cell lines, there was a similar response. In addition, MALAT1 interacted with miR-204 and reversed the inhibitory effect of its target gene, ZEB1, thereby contributing to the EMT and malignant transformation. In sum, these findings show that NF-κB transcriptionally regulates MALAT1, which, by binding with miR-204 and releasing ZEB1, promotes the EMT. These results offer an understanding of the regulatory network of the PM2.5-induced EMT that relates to the health risks associated with PM2.5.
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Affiliation(s)
- Fei Luo
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hongying Wei
- The Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huaqi Guo
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Li
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Feng
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Bian
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Yan Wang
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- The Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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247
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Zhang S, Huo X, Zhang Y, Lu X, Xu C, Xu X. The association of PM 2.5 with airway innate antimicrobial activities of salivary agglutinin and surfactant protein D. CHEMOSPHERE 2019; 226:915-923. [PMID: 31509921 DOI: 10.1016/j.chemosphere.2019.04.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/04/2019] [Accepted: 04/04/2019] [Indexed: 02/05/2023]
Abstract
Fine particulate matter ≤2.5 μm (PM2.5) is a prominent global public health risk factor that can cause respiratory infection by downregulating the amounts of antimicrobial proteins and peptides (AMPs). Both salivary agglutinin (SAG) and surfactant protein D (SPD) are important AMPs in respiratory mucosal fluid, providing protection against airway pathogen invasion and infection by inducing microbial aggregation and enhancing pathogen clearance. However, the relationship between PM2.5 and these AMPs is unclear. To better understand the relationship between PM2.5 and airway innate immune defenses, we review the respiratory antimicrobial activities of SAG and SPD, as well as the adverse effects of PM2.5 on airway innate antimicrobial defense. We speculate there exists a dual effect between PM2.5 and respiratory antimicrobial activity, which means that PM2.5 suppresses respiratory antimicrobial activity through downregulating airway AMPs, while airway AMPs accelerate PM2.5 clearance by inducing PM2.5 microbial aggregation. We propose further research on the relationship between PM2.5 and these AMPs.
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Affiliation(s)
- Shaocheng Zhang
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511486, Guangdong, China
| | - Yuling Zhang
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xueling Lu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Cheng Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China; Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, 515041, Guangdong, China.
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248
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Fan R, Ren Q, Zhou T, Shang L, Ma M, Wang B, Xiao C. Determination of endogenous substance change in PM 2.5-induced rat plasma and lung samples by UPLC-MS/MS method to identify potential markers for lung impairment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:22040-22050. [PMID: 31144181 DOI: 10.1007/s11356-019-05351-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 05/01/2019] [Indexed: 06/09/2023]
Abstract
Exposure to fine particulate matter (PM2.5) could induce lung impairment aggravation. Moreover, endogenous substances are known to play a significant role in lung impairment. Therefore, the research objectives was to investigate the influence of PM2.5-induced lung impairment on the levels of the eight endogenous substances, γ-aminobutyric acid (GABA), acetylcholine (ACh), glutamate (Glu), serotonin (5-HT), 5-hydroxyindole-3-acetic acid (5-HIAA), noradrenaline (NE), dopamine (DA), and 3, 4-dihydroxyphenylacetic acid (DOPAC). A sensitive UPLC-MS/MS method for the simultaneous determination of these endogenous substances in rat plasma and lung tissues was developed. The validated method was successfully applied for comparing profiles of analytes in rat plasma and lung tissues. The results indicated that five endogenous substances, namely, GABA, Ach, Glu, DA, and DOPAC, had a significant change in the rats with PM2.5-induced lung impairment.
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Affiliation(s)
- Ronghua Fan
- Department of Health Inspection, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Qingquan Ren
- Department of Health Inspection, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Tao Zhou
- Department of Health Inspection, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Lei Shang
- Department of Key Laboratory of Environmental Pollution and Microecology, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Mingyue Ma
- Department of Toxicology, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Bolun Wang
- Department of Health Inspection, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Chunling Xiao
- Department of Key Laboratory of Environmental Pollution and Microecology, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China.
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249
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Bogner J. [Flu-like disease in summer - what do we know about it?]. MMW Fortschr Med 2019; 161:39-43. [PMID: 31230309 PMCID: PMC7100306 DOI: 10.1007/s15006-019-0657-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Durchsucht man die deutschsprachige medizinische Literatur nach dem Begriff „Sommergrippe“, scheitert man kläglich. Jeder glaubt zu wissen, was damit gemeint ist, doch keiner schreibt darüber. Ist das überhaupt ein seriöses Thema?
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Affiliation(s)
- Johannes Bogner
- Sektion Klinische Infektiologie, Med. Klinik und Poliklinik IV, Klinikum der Univ. München, Pettenkoferstr. 8a, D-80336, München, Deutschland.
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Navarro KM, Kleinman MT, Mackay CE, Reinhardt TE, Balmes JR, Broyles GA, Ottmar RD, Naher LP, Domitrovich JW. Wildland firefighter smoke exposure and risk of lung cancer and cardiovascular disease mortality. ENVIRONMENTAL RESEARCH 2019; 173:462-468. [PMID: 30981117 DOI: 10.1016/j.envres.2019.03.060] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/18/2019] [Accepted: 03/24/2019] [Indexed: 06/09/2023]
Abstract
Wildland firefighters are exposed to wood smoke, which contains hazardous air pollutants, by suppressing thousands of wildfires across the U. S. each year. We estimated the relative risk of lung cancer and cardiovascular disease mortality from existing PM2.5 exposure-response relationships using measured PM4 concentrations from smoke and breathing rates from wildland firefighter field studies across different exposure scenarios. To estimate the relative risk of lung cancer (LC) and cardiovascular disease (CVD) mortality from exposure to PM2.5 from smoke, we used an existing exposure-response (ER) relationship. We estimated the daily dose of wildfire smoke PM2.5 from measured concentrations of PM4, estimated wildland firefighter breathing rates, daily shift duration (hours per day) and frequency of exposure (fire days per year and career duration). Firefighters who worked 49 days per year were exposed to a daily dose of PM4 that ranged from 0.15 mg to 0.74 mg for a 5- and 25-year career, respectively. The daily dose for firefighters working 98 days per year of PM4 ranged from 0.30 mg to 1.49 mg. Across all exposure scenarios (49 and 98 fire days per year) and career durations (5-25 years), we estimated that wildland firefighters were at an increased risk of LC (8 percent to 43 percent) and CVD (16 percent to 30 percent) mortality. This unique approach assessed long term health risks for wildland firefighters and demonstrated that wildland firefighters have an increased risk of lung cancer and cardiovascular disease mortality.
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Affiliation(s)
- Kathleen M Navarro
- USDA Forest Service, Pacific Southwest Region, Fire and Aviation Management, Clovis, CA, USA
| | - Michael T Kleinman
- Center for Occupational and Environmental Health, University of California, Irvine, CA, USA
| | | | | | - John R Balmes
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - George A Broyles
- USDA Forest Service, National Technology and Development Program, Boise, ID, USA
| | - Roger D Ottmar
- USDA Forest Service, Pacific Northwest Research Station, Seattle, WA, USA
| | - Luke P Naher
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, USA
| | - Joseph W Domitrovich
- USDA Forest Service, National Technology and Development Program, Missoula, MT, USA.
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