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Colín-Val Z, Flores-Navarro G, Rocha-Zavaleta L, Robledo-Cadena DX, Quintana-Belmares RO, López-Marure R. Fine particulate matter (PM 2.5) promotes chemoresistance and aggressive phenotype of A549 lung cancer cells. Toxicol Appl Pharmacol 2024; 487:116955. [PMID: 38710373 DOI: 10.1016/j.taap.2024.116955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
Lung cancer is one of the most aggressive malignancies with a high mortality rate. In large cities, particulate matter (PM) is a common air pollutant. High PM levels with aerodynamic size ≤2.5 μm (PM2.5) associates with lung cancer incidence and mortality. In this work, we explored PM2.5 effects on the behavior of lung cancer cells. To this, we chronically exposed A549 cells to increasing PM2.5 concentrations collected in México City, then evaluating cell proliferation, chemoresponse, migration, invasion, spheroid formation, and P-glycoprotein and N-cadherin expression. Chronic PM2.5 exposure from 1 μg/cm2 stimulated A549 cell proliferation, migration, and chemoresistance and upregulated P-glycoprotein and N-cadherin expression. PM2.5 also induced larger multicellular tumor spheroids (MCTS) and less disintegration compared with control cells. Therefore, these results indicate lung cancer patients exposed to airborne PM2.5 as urban pollutant could develop more aggressive tumor phenotypes, with increased cell proliferation, migration, and chemoresistance.
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Affiliation(s)
- Zaira Colín-Val
- CIBIMEC, Departamento de Ciencias Básicas para la Salud, Centro Universitario del Sur (CUSur), Universidad de Guadalajara, Ciudad Guzmán, Jalisco, Mexico
| | - Guillermo Flores-Navarro
- Departamento de Fisiología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
| | - Leticia Rocha-Zavaleta
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | | | - Raúl Omar Quintana-Belmares
- Laboratorio de Salud Ambiental, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Ciudad de México, Mexico
| | - Rebeca López-Marure
- Departamento de Fisiología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico.
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Pedde M, Larson TV, D’Souza J, Szpiro AA, Kloog I, Lisabeth LD, Jacobs D, Sheppard L, Allison M, Kaufman JD, Adar SD. Coarse Particulate Matter and Markers of Inflammation and Coagulation in the Multi-Ethnic Study of Atherosclerosis (MESA) Population: A Repeat Measures Analysis. ENVIRONMENTAL HEALTH PERSPECTIVES 2024; 132:27009. [PMID: 38381480 PMCID: PMC10880818 DOI: 10.1289/ehp12972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 01/09/2024] [Accepted: 01/16/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND In contrast to fine particles, less is known of the inflammatory and coagulation impacts of coarse particulate matter (PM 10 - 2.5 , particulate matter with aerodynamic diameter ≤ 10 μ m and > 2.5 μ m ). Toxicological research suggests that these pathways might be important processes by which PM 10 - 2.5 impacts health, but there are relatively few epidemiological studies due to a lack of a national PM 10 - 2.5 monitoring network. OBJECTIVES We used new spatiotemporal exposure models to examine associations of both 1-y and 1-month average PM 10 - 2.5 concentrations with markers of inflammation and coagulation. METHODS We leveraged data from 7,071 Multi-Ethnic Study of Atherosclerosis and ancillary study participants 45-84 y of age who had repeated plasma measures of inflammatory and coagulation biomarkers. We estimated PM 10 - 2.5 at participant addresses 1 y and 1 month before each of up to four exams (2000-2012) using spatiotemporal models that incorporated satellite, regulatory monitoring, and local geographic data and accounted for spatial correlation. We used random effects models to estimate associations with interleukin-6 (IL-6), C-reactive protein (CRP), fibrinogen, and D-dimer, controlling for potential confounders. RESULTS Increases in PM 10 - 2.5 were not associated with greater levels of inflammation or coagulation. A 10 - μ g / m 3 increase in annual average PM 10 - 2.5 was associated with a 2.5% decrease in CRP [95% confidence interval (CI): - 5.5 , 0.6]. We saw no association between annual average PM 10 - 2.5 and the other markers (IL-6: - 0.7 % , 95% CI: - 2.6 , 1.2; fibrinogen: - 0.3 % , 95% CI: - 0.9 , 0.3; D-dimer: - 0.2 % , 95% CI: - 2.6 , 2.4). Associations consistently showed that a 1 0 - μ g / m 3 increase in 1-month average PM 10 - 2.5 was associated with reduced inflammation and coagulation, though none were distinguishable from no association (IL-6: - 1.2 % , 95% CI: - 3.0 , 0.5; CRP: - 2.5 % , 95% CI: - 5.3 , 0.4; fibrinogen: - 0.4 % , 95% CI: - 1.0 , 0.1; D-dimer: - 2.0 % , 95% CI: - 4.3 , 0.3). DISCUSSION We found no evidence that PM 10 - 2.5 is associated with higher inflammation or coagulation levels. More research is needed to determine whether the inflammation and coagulation pathways are as important in explaining observed PM 10 - 2.5 health impacts in humans as they have been shown to be in toxicology studies or whether PM 10 - 2.5 might impact human health through alternative biological mechanisms. https://doi.org/10.1289/EHP12972.
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Affiliation(s)
- Meredith Pedde
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Timothy V. Larson
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
- Department of Civil and Environmental Engineering, University of Washington, Seattle, Washington, USA
| | - Jennifer D’Souza
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Adam A. Szpiro
- Department of Biostatistics, University of Washington, Seattle, Washington, USA
| | - Itai Kloog
- Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Lynda D. Lisabeth
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA
| | - David Jacobs
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lianne Sheppard
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
- Department of Biostatistics, University of Washington, Seattle, Washington, USA
| | - Matthew Allison
- Division of Preventive Medicine, University of California San Diego, San Diego, California, USA
| | - Joel D. Kaufman
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Sara D. Adar
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA
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Figueiredo D, Vicente ED, Vicente A, Gonçalves C, Lopes I, Alves CA, Oliveira H. Toxicological and Mutagenic Effects of Particulate Matter from Domestic Activities. TOXICS 2023; 11:505. [PMID: 37368605 DOI: 10.3390/toxics11060505] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/04/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023]
Abstract
People spend most of their time indoors, particularly in their houses where daily activities are carried out, enhancing particulate matter (PM) emissions with consequent adverse health impacts. This study intended to appraise the toxicological and mutagenic responses of particulate matter with a diameter less than 10 μm (PM10) released from cooking and ironing activities under different conditions. The cytotoxicity of the PM10 total organic extracts was tested in A549 cells using the WST-8 and the lactate dehydrogenase (LDH) assays, while the interference in cell cycle dynamics and reactive oxygen species (ROS) production was analysed by flow cytometry. The S. typhimurium TA98 and TA100 Ames tester strains with and without metabolic activation were employed to determine the mutagenic potential of the PM10-bound polycyclic aromatic hydrocarbons (PAHs). PM10 organic extracts decreased the metabolic activity of A549 cells; however, no effects in the LDH release were observed. An increase in ROS levels was registered only for cells treated with PM10 at IC20 from steam ironing, in low ventilation conditions, while cell cycle dynamics was only affected by exposure to PM10 at IC20 from frying horse mackerel and grilling boneless pork strips. No mutagenic effects were observed for all the PM10-bound PAHs samples.
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Affiliation(s)
- Daniela Figueiredo
- Department of Biology, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
- Department of Environment and Planning, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Estela D Vicente
- Department of Environment and Planning, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana Vicente
- Department of Environment and Planning, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Cátia Gonçalves
- Department of Environment and Planning, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Isabel Lopes
- Department of Biology, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Célia A Alves
- Department of Environment and Planning, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Helena Oliveira
- Department of Biology, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
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Santibáñez-Andrade M, Quezada-Maldonado EM, Rivera-Pineda A, Chirino YI, García-Cuellar CM, Sánchez-Pérez Y. The Road to Malignant Cell Transformation after Particulate Matter Exposure: From Oxidative Stress to Genotoxicity. Int J Mol Sci 2023; 24:ijms24021782. [PMID: 36675297 PMCID: PMC9860989 DOI: 10.3390/ijms24021782] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 12/31/2022] [Accepted: 01/06/2023] [Indexed: 01/17/2023] Open
Abstract
In cells, oxidative stress is an imbalance between the production/accumulation of oxidants and the ability of the antioxidant system to detoxify these reactive products. Reactive oxygen species (ROS), cause multiple cellular damages through their interaction with biomolecules such as lipids, proteins, and DNA. Genotoxic damage caused by oxidative stress has become relevant since it can lead to mutation and play a central role in malignant transformation. The evidence describes chronic oxidative stress as an important factor implicated in all stages of the multistep carcinogenic process: initiation, promotion, and progression. In recent years, ambient air pollution by particulate matter (PM) has been cataloged as a cancer risk factor, increasing the incidence of different types of tumors. Epidemiological and toxicological evidence shows how PM-induced oxidative stress could mediate multiple events oriented to carcinogenesis, such as proliferative signaling, evasion of growth suppressors, resistance to cell death, induction of angiogenesis, and activation of invasion/metastasis pathways. In this review, we summarize the findings regarding the involvement of oxidative and genotoxic mechanisms generated by PM in malignant cell transformation. We also discuss the importance of new approaches oriented to studying the development of tumors associated with PM with more accuracy, pursuing the goal of weighing the impact of oxidative stress and genotoxicity as one of the main mechanisms associated with its carcinogenic potential.
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Affiliation(s)
- Miguel Santibáñez-Andrade
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología, San Fernando No. 22, Tlalpan, México City CP 14080, Mexico
| | - Ericka Marel Quezada-Maldonado
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología, San Fernando No. 22, Tlalpan, México City CP 14080, Mexico
| | - Andrea Rivera-Pineda
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología, San Fernando No. 22, Tlalpan, México City CP 14080, Mexico
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV), Av. IPN No. 2508 Col. San Pedro Zacatenco, México City CP 07360, Mexico
| | - Yolanda I. Chirino
- Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Los Reyes Iztacala, Tlalnepantla CP 54090, Mexico
| | - Claudia M. García-Cuellar
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología, San Fernando No. 22, Tlalpan, México City CP 14080, Mexico
- Correspondence: (C.M.G.-C.); (Y.S.-P.); Tel.: +52-(55)-3693-5200 (ext. 209) (Y.S.-P.)
| | - Yesennia Sánchez-Pérez
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología, San Fernando No. 22, Tlalpan, México City CP 14080, Mexico
- Correspondence: (C.M.G.-C.); (Y.S.-P.); Tel.: +52-(55)-3693-5200 (ext. 209) (Y.S.-P.)
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5
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Skuland T, Grytting VS, Låg M, Jørgensen RB, Snilsberg B, Leseman DLAC, Kubátová A, Emond J, Cassee FR, Holme JA, Øvrevik J, Refsnes M. Road tunnel-derived coarse, fine and ultrafine particulate matter: physical and chemical characterization and pro-inflammatory responses in human bronchial epithelial cells. Part Fibre Toxicol 2022; 19:45. [PMID: 35787286 PMCID: PMC9251916 DOI: 10.1186/s12989-022-00488-5] [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] [Received: 04/04/2022] [Accepted: 06/26/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Traffic particulate matter (PM) comprises a mixture of particles from fuel combustion and wear of road pavement, tires and brakes. In countries with low winter temperatures the relative contribution of mineral-rich PM from road abrasion may be especially high due to use of studded tires during winter season. The aim of the present study was to sample and characterize size-fractioned PM from two road tunnels paved with different stone materials in the asphalt, and to compare the pro-inflammatory potential of these fractions in human bronchial epithelial cells (HBEC3-KT) in relation to physicochemical characteristics. METHODS The road tunnel PM was collected with a vacuum pump and a high-volume cascade impactor sampler. PM was sampled during winter, both during humid and dry road surface conditions, and before and after cleaning the tunnels. Samples were analysed for hydrodynamic size distribution, content of elemental carbon (EC), organic carbon (OC) and endotoxin, and the capacity for acellular generation of reactive oxygen species. Cytotoxicity and pro-inflammatory responses were assessed in HBEC3-KT cells after exposure to coarse (2.5-10 μm), fine (0.18-2.5 μm) and ultrafine PM (≤ 0.18 μm), as well as particles from the respective stone materials used in the pavement. RESULTS The pro-inflammatory potency of the PM samples varied between road tunnels and size fractions, but showed more marked responses than for the stone materials used in asphalt of the respective tunnels. In particular, fine samples showed significant increases as low as 25 µg/mL (2.6 µg/cm2) and were more potent than coarse samples, while ultrafine samples showed more variable responses between tunnels, sampling conditions and endpoints. The most marked responses were observed for fine PM sampled during humid road surface conditions. Linear correlation analysis showed that particle-induced cytokine responses were correlated to OC levels, while no correlations were observed for other PM characteristics. CONCLUSIONS The pro-inflammatory potential of fine road tunnel PM sampled during winter season was high compared to coarse PM. The differences between the PM-induced cytokine responses were not related to stone materials in the asphalt. However, the ratio of OC to total PM mass was associated with the pro-inflammatory potential.
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Affiliation(s)
- Tonje Skuland
- Division of Climate and Environmental Health, Department of Air Quality and Noise, Norwegian Institute of Public Health, PO Box 222, 0213, Skøyen, Oslo, Norway.
| | - Vegard Sæter Grytting
- Division of Climate and Environmental Health, Department of Air Quality and Noise, Norwegian Institute of Public Health, PO Box 222, 0213, Skøyen, Oslo, Norway
| | - Marit Låg
- Division of Climate and Environmental Health, Department of Air Quality and Noise, Norwegian Institute of Public Health, PO Box 222, 0213, Skøyen, Oslo, Norway
| | - Rikke Bræmming Jørgensen
- Department of Industrial Economics and Technology Management, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | | | - Daan L A C Leseman
- National Institute for Public Health and the Environment - RIVM, PO Box 1, 3720 BA, Bilthoven, The Netherlands
| | - Alena Kubátová
- Department of Chemistry, University of North Dakota, Grand Forks, ND, USA
| | - Jessica Emond
- Department of Chemistry, University of North Dakota, Grand Forks, ND, USA
| | - Flemming R Cassee
- National Institute for Public Health and the Environment - RIVM, PO Box 1, 3720 BA, Bilthoven, The Netherlands.,Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Jørn A Holme
- Division of Climate and Environmental Health, Department of Air Quality and Noise, Norwegian Institute of Public Health, PO Box 222, 0213, Skøyen, Oslo, Norway
| | - Johan Øvrevik
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, 0213, Skøyen, Oslo, Norway.,Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, PO Box 1066, 0316, Blindern, Oslo, Norway
| | - Magne Refsnes
- Division of Climate and Environmental Health, Department of Air Quality and Noise, Norwegian Institute of Public Health, PO Box 222, 0213, Skøyen, Oslo, Norway
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6
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Fussell JC, Franklin M, Green DC, Gustafsson M, Harrison RM, Hicks W, Kelly FJ, Kishta F, Miller MR, Mudway IS, Oroumiyeh F, Selley L, Wang M, Zhu Y. A Review of Road Traffic-Derived Non-Exhaust Particles: Emissions, Physicochemical Characteristics, Health Risks, and Mitigation Measures. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:6813-6835. [PMID: 35612468 PMCID: PMC9178796 DOI: 10.1021/acs.est.2c01072] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/29/2022] [Accepted: 05/10/2022] [Indexed: 05/22/2023]
Abstract
Implementation of regulatory standards has reduced exhaust emissions of particulate matter from road traffic substantially in the developed world. However, nonexhaust particle emissions arising from the wear of brakes, tires, and the road surface, together with the resuspension of road dust, are unregulated and exceed exhaust emissions in many jurisdictions. While knowledge of the sources of nonexhaust particles is fairly good, source-specific measurements of airborne concentrations are few, and studies of the toxicology and epidemiology do not give a clear picture of the health risk posed. This paper reviews the current state of knowledge, with a strong focus on health-related research, highlighting areas where further research is an essential prerequisite for developing focused policy responses to nonexhaust particles.
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Affiliation(s)
- Julia C. Fussell
- National
Institute for Health Research Health Protection Research Unit in Environmental
Exposures and Health, School of Public Health, Imperial College London, London, W12 0BZ, U.K.
| | - Meredith Franklin
- Department
of Statistical Sciences, University of Toronto, Toronto, Ontario M5G 1Z5, Canada
| | - David C. Green
- National
Institute for Health Research Health Protection Research Unit in Environmental
Exposures and Health, School of Public Health, Imperial College London, London, W12 0BZ, U.K.
| | - Mats Gustafsson
- Swedish
National Road and Transport Research Institute (VTI), SE-581 95, Linköping, Sweden
| | - Roy M. Harrison
- School
of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, U.K.
- Department
of Environmental Sciences / Centre of Excellence in Environmental
Studies, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - William Hicks
- National
Institute for Health Research Health Protection Research Unit in Environmental
Exposures and Health, School of Public Health, Imperial College London, London, W12 0BZ, U.K.
| | - Frank J. Kelly
- National
Institute for Health Research Health Protection Research Unit in Environmental
Exposures and Health, School of Public Health, Imperial College London, London, W12 0BZ, U.K.
| | - Franceska Kishta
- Centre
for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, U.K.
| | - Mark R. Miller
- Centre
for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, U.K.
| | - Ian S. Mudway
- National
Institute for Health Research Health Protection Research Unit in Environmental
Exposures and Health, School of Public Health, Imperial College London, London, W12 0BZ, U.K.
| | - Farzan Oroumiyeh
- Department
of Environmental Health Sciences, Jonathan and Karin Fielding School
of Public Health, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Liza Selley
- MRC
Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Road, Cambridge,CB2 1QR, U.K.
| | - Meng Wang
- University
at Buffalo, School of Public
Health and Health Professions, Buffalo, New York 14214, United States
| | - Yifang Zhu
- Department
of Environmental Health Sciences, Jonathan and Karin Fielding School
of Public Health, University of California,
Los Angeles, Los Angeles, California 90095, United States
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7
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Hu J, Xue X, Xiao M, Wang W, Gao Y, Kan H, Ge J, Cui Z, Chen R. The acute effects of particulate matter air pollution on ambulatory blood pressure: A multicenter analysis at the hourly level. ENVIRONMENT INTERNATIONAL 2021; 157:106859. [PMID: 34509047 DOI: 10.1016/j.envint.2021.106859] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/09/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
Epidemiological evidence from ambulatory blood pressure monitoring is needed to clarify the associations of particulate air pollution with blood pressure and potential lag patterns. We examined the associations of fine and coarse particulate matter (PM2.5, PM2.5-10) with ambulatory blood pressure among 7108 non-hypertensive participants from 7 Chinese cities between April 2016 and November 2020. Hourly concentrations of PM2.5 and PM2.5-10 were obtained from the nearest monitoring stations. We measured four blood pressure indicators, including systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP) and pulse pressure (PP). Linear mixed-effect models combined with distributed lag models were applied to analyze the data. Generally, very short-term exposure to PM2.5 was significantly associated with elevated blood pressure. These effects occurred on the same hour of blood pressure measurement, attenuated gradually, and became insignificant approximately at lag 12 h. An interquartile range (IQR, 33 μg/m3) increase of PM2.5 was significantly associated with cumulative increments of 0.58 mmHg for SBP, 0.31 mmHg for DBP, 0.38 mmHg for MAP, and 0.33 mmHg for PP over lag 0 to 12 h. The exposure-response relationship curves were almost linear without thresholds, but tended to be flat at very high concentrations. No significant associations were observed for PM2.5-10. Our study provides independent and robust associations between transient PM2.5 exposure and elevated blood pressure within the first 12 h, and reinforces the evidence for a linear and non-threshold exposure-response relationship, which may have implications for blood pressure management and hypertension prevention in susceptible population.
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Affiliation(s)
- Jialu Hu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xiaowei Xue
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Min Xiao
- Jiangsu Standard Medical Technology Co., Ltd, Beijing 100096, China
| | - Weidong Wang
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Ya Gao
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Haidong Kan
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Junbo Ge
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
| | - Zhaoqiang Cui
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
| | - Renjie Chen
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment, Fudan University, Shanghai 200032, China.
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Selley L, Lammers A, Le Guennec A, Pirhadi M, Sioutas C, Janssen N, Maitland-van der Zee AH, Mudway I, Cassee F. Alterations to the urinary metabolome following semi-controlled short exposures to ultrafine particles at a major airport. Int J Hyg Environ Health 2021; 237:113803. [PMID: 34517159 PMCID: PMC8504201 DOI: 10.1016/j.ijheh.2021.113803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Inflammation, oxidative stress and reduced cardiopulmonary function following exposure to ultrafine particles (UFP) from airports has been reported but the biological pathways underlying these toxicological endpoints remain to be explored. Urinary metabolomics offers a robust method by which changes in cellular pathway activity can be characterised following environmental exposures. OBJECTIVE We assessed the impact of short-term exposures to UFP from different sources at a major airport on the human urinary metabolome. METHODS 21 healthy, non-smoking volunteers (aged 19-27 years) were repeatedly (2-5 visits) exposed for 5h to ambient air at Amsterdam Airport Schiphol, while performing intermittent, moderate exercise. Pre- to-post exposure changes in urinary metabolite concentrations were assessed via 1H NMR spectroscopy and related to total and source-specific particle number concentrations (PNC) using linear mixed effects models. RESULTS Total PNC at the exposure site was on average, 53,500 particles/cm3 (range 10,500-173,200) and associated with significant reductions in urinary taurine (-0.262 AU, 95% CI: -0.507 to -0.020) and dimethylamine concentrations (-0.021 AU, 95% CI: -0.040 to -0.067). Aviation UFP exposure accounted for these changes, with the reductions in taurine and dimethylamine associating with UFP produced during both aircraft landing and take-off. Significant reductions in pyroglutamate concentration were also associated with aviation UFP specifically, (-0.005 AU, 95% CI: -0.010 - <0.000) again, with contributions from both landing and take-off UFP exposure. While non-aviation UFPs induced small changes to the urinary metabolome, their effects did not significantly impact the overall response to airport UFP exposure. DISCUSSION Following short-term exposures at a major airport, aviation-related UFP caused the greatest changes to the urinary metabolome. These were consistent with a heightened antioxidant response and altered nitric oxide synthesis. Although some of these responses could be adaptive, they appeared after short-term exposures in healthy adults. Further study is required to determine whether long-term exposures induce injurious effects.
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Affiliation(s)
- Liza Selley
- MRC Toxicology Unit, University of Cambridge, Cambridge, United Kingdom.
| | - Ariana Lammers
- Amsterdam UMC, University of Amsterdam, Department of Respiratory Medicine, Meibergdreef 9, Amsterdam, the Netherlands
| | - Adrien Le Guennec
- Randall Centre of Cell and Molecular Biophysics, King's College London, London, United Kingdom
| | - Milad Pirhadi
- University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, USA
| | - Constantinos Sioutas
- University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, USA
| | - Nicole Janssen
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Anke H Maitland-van der Zee
- Amsterdam UMC, University of Amsterdam, Department of Respiratory Medicine, Meibergdreef 9, Amsterdam, the Netherlands
| | - Ian Mudway
- Environmental Research Group, Faculty of Medicine, School of Publuc Health, Imperial College London, London, United Kingdom; National Institute of Health Research, Health Protection Research Unit in Environmental and Health, Faculty of Medicine, School of Public Health, Imperial College London, London, United Kingdom
| | - Flemming Cassee
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands; Institute for Risk Assessment Studies, Utrecht University, Utrecht, Netherlands
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9
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Chen H, Oliver BG, Pant A, Olivera A, Poronnik P, Pollock CA, Saad S. Particulate Matter, an Intrauterine Toxin Affecting Foetal Development and Beyond. Antioxidants (Basel) 2021; 10:antiox10050732. [PMID: 34066412 PMCID: PMC8148178 DOI: 10.3390/antiox10050732] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/30/2021] [Accepted: 05/02/2021] [Indexed: 02/07/2023] Open
Abstract
Air pollution is the 9th cause of the overall disease burden globally. The solid component in the polluted air, particulate matters (PMs) with a diameter of 2.5 μm or smaller (PM2.5) possess a significant health risk to several organ systems. PM2.5 has also been shown to cross the blood–placental barrier and circulate in foetal blood. Therefore, it is considered an intrauterine environmental toxin. Exposure to PM2.5 during the perinatal period, when the foetus is particularly susceptible to developmental defects, has been shown to reduce birth weight and cause preterm birth, with an increase in adult disease susceptibility in the offspring. However, few studies have thoroughly studied the health outcome of foetuses due to intrauterine exposure and the underlying mechanisms. This perspective summarises currently available evidence, which suggests that intrauterine exposure to PM2.5 promotes oxidative stress and inflammation in a similar manner as occurs in response to direct PM exposure. Oxidative stress and inflammation are likely to be the common mechanisms underlying the dysfunction of multiple systems, offering potential targets for preventative strategies in pregnant mothers for an optimal foetal outcome.
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Affiliation(s)
- Hui Chen
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (B.G.O.); (A.O.)
- Correspondence: (H.C.); (S.S.)
| | - Brian G. Oliver
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (B.G.O.); (A.O.)
| | - Anushriya Pant
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia; (A.P.); (P.P.)
| | - Annabel Olivera
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (B.G.O.); (A.O.)
| | - Philip Poronnik
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia; (A.P.); (P.P.)
| | - Carol A. Pollock
- Renal Research Laboratory, Kolling Institute of Medical Research, Sydney, NSW 2065, Australia;
| | - Sonia Saad
- Renal Research Laboratory, Kolling Institute of Medical Research, Sydney, NSW 2065, Australia;
- Correspondence: (H.C.); (S.S.)
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Selley L, Schuster L, Marbach H, Forsthuber T, Forbes B, Gant TW, Sandström T, Camiña N, Athersuch TJ, Mudway I, Kumar A. Brake dust exposure exacerbates inflammation and transiently compromises phagocytosis in macrophages. Metallomics 2021; 12:371-386. [PMID: 31915771 DOI: 10.1039/c9mt00253g] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Studies have emphasised the importance of combustion-derived particles in eliciting adverse health effects, especially those produced by diesel vehicles. In contrast, few investigations have explored the potential toxicity of particles derived from tyre and brake wear, despite their significant contributions to total roadside particulate mass. The objective of this study was to compare the relative toxicity of compositionally distinct brake abrasion dust (BAD) and diesel exhaust particles (DEP) in a cellular model that is relevant to human airways. Although BAD contained considerably more metals/metalloids than DEP (as determined by inductively coupled plasma mass spectrometry) similar toxicological profiles were observed in U937 monocyte-derived macrophages following 24 h exposures to 4-25 μg ml-1 doses of either particle type. Responses to the particles were characterised by dose-dependent decreases in mitochondrial depolarisation (p ≤ 0.001), increased secretion of IL-8, IL-10 and TNF-α (p ≤ 0.05 to p ≤ 0.001) and decreased phagocytosis of S. aureus (p ≤ 0.001). This phagocytic deficit recovered, and the inflammatory response resolved when challenged cells were incubated for a further 24 h in particle-free media. These responses were abrogated by metal chelation using desferroxamine. At minimally cytotoxic doses both DEP and BAD perturbed bacterial clearance and promoted inflammatory responses in U937 cells with similar potency. These data emphasise the requirement to consider contributions of abrasion particles to traffic-related clinical health effects.
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Affiliation(s)
- Liza Selley
- MRC Toxicology Unit, University of Cambridge, Hodgkin Building, Lancaster Road, Leicester, LE1 9HN, UK.
| | - Linda Schuster
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, London, SE1 9NH, UK. and German Cancer Research Center (DKFZ) & Bioquant Center, Division of Chromatin Networks, 69120, Heidelberg, Germany.
| | - Helene Marbach
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, London, SE1 9NH, UK.
| | - Theresa Forsthuber
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, London, SE1 9NH, UK.
| | - Ben Forbes
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, London, SE1 9NH, UK.
| | - Timothy W Gant
- Department of Toxicology, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, OX11 0RQ, UK. and MRC-PHE Centre for Environment and Health, Imperial College, London, W2 1PG, UK.
| | - Thomas Sandström
- Department of Public Health and Clinical Medicine, Division of Medicine, Umeå University, Umeå, Sweden.
| | - Nuria Camiña
- MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK.
| | - Toby J Athersuch
- MRC-PHE Centre for Environment and Health, Imperial College, London, W2 1PG, UK. and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, SW7 2AZ, UK
| | - Ian Mudway
- MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK. and Department of Analytical and Environmental Sciences, Faculty of Life Sciences and Medicine, King's College London, London, SE1 9NH, UK
| | - Abhinav Kumar
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, London, SE1 9NH, UK.
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11
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Kang D, Jung IB, Lee SY, Park SJ, Kwon SJ, Park DH, Son JW. Particulate matter less than 10 μm (PM 10) activates cancer related genes in lung epithelial cells. Inhal Toxicol 2020; 32:487-493. [PMID: 33283556 DOI: 10.1080/08958378.2020.1850936] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Particulate matter (PM) has various systemic effects. We researched the effects of PM on lung epithelial cells with next generation sequencing (NGS) and validated this with quantitative real-time polymerase chain reaction (qRT-PCR). Methods: We cultured the group exposed to PM10 (Particulate matter less than 10 μm)-like fine dust (ERM® CZ120 fine dust) at a concentration of 50 μg/mL and the untreated group for seven days in one normal lung epithelial cell line (BEAS-2B) and four lung cancer epithelial cell lines (NCI-H358, HCC-827, A549, NCI-H292). Then, we extracted the RNA from the sample and performed NGS. As a result of NGS, various gene expressions were upregulated or downregulated. Among them, we selected the gene whose mean fold change was more than doubled and changed in the same direction in all five cell lines. Based on these genes, we selected the top 10 genes, either upregulated or downregulated, to validate with the qRT-PCR. Results: There were the four genes that matched the NGS and qRT-PCR results, all of which were upregulated genes. The four genes are CYP1A1, CYP1B1, LINC01816, and BPIFA2. All four genes that matched the two results were upregulated genes and none of the downregulated genes matched. Conclusion: CYP1A1 and CYP1B1 are known to cause lung cancer by metabolizing polycyclic aromatic hydrocarbons, and long noncoding RNA is also known to play an important role in lung cancer. Considering this, we thought PM10 might be associated with lung cancer by activating CYP1A1, CYP1B1, and LINC01816.
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Affiliation(s)
- Daeun Kang
- Division of Pulmonology, Department of Internal Medicine, Konyang University Hospital, Daejeon, Republic of Korea
| | - In Beom Jung
- Division of Pulmonology, Department of Internal Medicine, Konyang University Hospital, Daejeon, Republic of Korea
| | - Su Yel Lee
- Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Se Jin Park
- Department of Internal Medicine, Konyang University Hospital, Daejeon, Republic of Korea
| | - Sun Jung Kwon
- Division of Pulmonology, Department of Internal Medicine, Konyang University Hospital, Daejeon, Republic of Korea
| | - Dong Ho Park
- Department of Anesthesiology and Pain Medicine, Eulji University Medical Center, Daejeon, Korea
| | - Ji Woong Son
- Division of Pulmonology, Department of Internal Medicine, Konyang University Hospital, Daejeon, Republic of Korea
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12
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Mishra R, Krishnamoorthy P, Gangamma S, Raut AA, Kumar H. Particulate matter (PM 10) enhances RNA virus infection through modulation of innate immune responses. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115148. [PMID: 32771845 PMCID: PMC7357538 DOI: 10.1016/j.envpol.2020.115148] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/28/2020] [Accepted: 06/28/2020] [Indexed: 05/07/2023]
Abstract
Sensing of pathogens by specialized receptors is the hallmark of the innate immunity. Innate immune response also mounts a defense response against various allergens and pollutants including particulate matter present in the atmosphere. Air pollution has been included as the top threat to global health declared by WHO which aims to cover more than three billion people against health emergencies from 2019 to 2023. Particulate matter (PM), one of the major components of air pollution, is a significant risk factor for many human diseases and its adverse effects include morbidity and premature deaths throughout the world. Several clinical and epidemiological studies have identified a key link between the PM existence and the prevalence of respiratory and inflammatory disorders. However, the underlying molecular mechanism is not well understood. Here, we investigated the influence of air pollutant, PM10 (particles with aerodynamic diameter less than 10 μm) during RNA virus infections using Highly Pathogenic Avian Influenza (HPAI) - H5N1 virus. We thus characterized the transcriptomic profile of lung epithelial cell line, A549 treated with PM10 prior to H5N1infection, which is known to cause severe lung damage and respiratory disease. We found that PM10 enhances vulnerability (by cellular damage) and regulates virus infectivity to enhance overall pathogenic burden in the lung cells. Additionally, the transcriptomic profile highlights the connection of host factors related to various metabolic pathways and immune responses which were dysregulated during virus infection. Collectively, our findings suggest a strong link between the prevalence of respiratory illness and its association with the air quality.
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Affiliation(s)
- Richa Mishra
- Laboratory of Immunology and Infectious Disease Biology, Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, 462066, MP, India
| | - Pandikannan Krishnamoorthy
- Laboratory of Immunology and Infectious Disease Biology, Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, 462066, MP, India
| | - S Gangamma
- National Institute of Technology Karnataka (NITK), Surathkal, Mangaluru, 575025, Karnataka, India; Centre for Water Food and Environment, IIT Ropar, Rupnagar, 140001, Punjab, India
| | - Ashwin Ashok Raut
- Pathogenomics Laboratory, ICAR - National Institute of High Security Animal Diseases (NIHSAD), OIE Reference Laboratory for Avian Influenza, Bhopal, 462021, MP, India
| | - Himanshu Kumar
- Laboratory of Immunology and Infectious Disease Biology, Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, 462066, MP, India; WPI Immunology, Frontier Research Centre, Osaka University, Osaka, 5650871, Japan.
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13
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Singh V, Biswal A, Kesarkar AP, Mor S, Ravindra K. High resolution vehicular PM10 emissions over megacity Delhi: Relative contributions of exhaust and non-exhaust sources. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 699:134273. [PMID: 31683208 DOI: 10.1016/j.scitotenv.2019.134273] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/27/2019] [Accepted: 09/02/2019] [Indexed: 06/10/2023]
Abstract
Exposure to particulate matter (PM) from traffic can cause adverse health risks. Recent studies project an increase in non-exhaust emissions in the future despite a reduction in exhaust emissions. While there is a lot of research on exhaust emissions, the challenges remain to quantify non-exhaust emissions, especially in developing countries. In this work, an approach has been developed, and on-road vehicular non-exhaust PM emissions are estimated due to brake wear, tyre wear, road wear and resuspension, at very high resolution (100 m2) over an Indian megacity Delhi. Further, the relative contribution of non-exhaust emissions to the total vehicular emission was also calculated. The total PM10 emissions in megacity Delhi were 31.5 Gg/year, which is mainly dominated by the non-exhaust sources. The non-exhaust emissions were found to be six times (86%) of the exhaust emission (14%). The highest contribution to the total vehicular PM emission comes from the cars (34%) followed by buses (23%) and heavy commercial vehicles (HCVs, 17%), which is dominated by resuspension of dust. Cars and buses contribute less to exhaust emissions and more to non-exhaust emissions. Majors roads are the largest contributors to the total emissions in Delhi. The emissions from HCVs, diesel cars along with the other diesel vehicles result in diesel vehicles contributing more than the petrol vehicles to both exhaust and non-exhaust emissions. As India target to reduce PM pollution under the national clean air program, the current study will be useful to plan a suitable intervention to mitigate air pollution and associated health impacts.
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Affiliation(s)
- Vikas Singh
- National Atmospheric Research Laboratory, Gadanki, AP, India.
| | - Akash Biswal
- National Atmospheric Research Laboratory, Gadanki, AP, India; Department of Environment Studies, Panjab University, Chandigarh 160014, India
| | - Amit P Kesarkar
- National Atmospheric Research Laboratory, Gadanki, AP, India
| | - Suman Mor
- Department of Environment Studies, Panjab University, Chandigarh 160014, India
| | - Khaiwal Ravindra
- Department of Community Medicine and School of Public Health, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
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14
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Gerlofs-Nijland ME, Bokkers BGH, Sachse H, Reijnders JJE, Gustafsson M, Boere AJF, Fokkens PFH, Leseman DLAC, Augsburg K, Cassee FR. Inhalation toxicity profiles of particulate matter: a comparison between brake wear with other sources of emission. Inhal Toxicol 2019; 31:89-98. [PMID: 31066325 DOI: 10.1080/08958378.2019.1606365] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objective: There is substantial evidence that exposure to airborne particulate matter (PM) from road traffic is associated with adverse health outcomes. Although it is often assumed to be caused by vehicle exhaust emissions such as soot, other components may also contribute to detrimental effects. The toxicity of fine PM (PM2.5; <2.5 µm mass median aerodynamic diameter) released from brake pads was compared to PM from other sources. Materials and methods: PM2.5 of different types of brake pads (low-metallic, semi-metallic, NAO and ECE-NAO hybrid), tires and road pavement, poultry as well as the combustion of diesel fuel and wood (modern and old-fashioned stove technologies) were collected as suspensions in water. These were subsequently aerosolized for inhalation exposures. Female BALB/cOlaHsd mice were exposed for 1.5, 3, or 6 hours by nose-only inhalation up to 9 mg/m3. Results: Neither cytotoxicity nor oxidative stress was observed after exposure to any of the re-aerosolized PM2.5 samples. Though, at similar PM mass concentrations the potency to induce inflammatory responses was strongly dependent on the emission source. Exposure to most examined PM2.5 sources provoked inflammation including those derived from the poultry farm, wear emissions of the NAO and ECE-NAO hybrid brake pads as well as diesel and wood combustion, as indicated by neutrophil chemoattractant, KC and MIP-2 and lung neutrophil influx. Discussion and conclusions: Our study revealed considerable variability in the toxic potency of brake wear particles. Understanding of sources that are most harmful to health can provide valuable information for risk management strategies and could help decision-makers to develop more targeted air pollution regulation.
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Affiliation(s)
- M E Gerlofs-Nijland
- a National Institute for Public Health and the Environment (RIVM) , Bilthoven , Netherlands
| | - B G H Bokkers
- a National Institute for Public Health and the Environment (RIVM) , Bilthoven , Netherlands
| | - H Sachse
- b IDIADA Fahrzeugtechnik , Ingolstadt , Germany
| | - J J E Reijnders
- c Eindhoven University of Technology , Eindhoven , Netherlands
| | - M Gustafsson
- d Swedish National Road and Transport Research Institute (VTI) , Linköping , Sweden
| | - A J F Boere
- a National Institute for Public Health and the Environment (RIVM) , Bilthoven , Netherlands
| | - P F H Fokkens
- a National Institute for Public Health and the Environment (RIVM) , Bilthoven , Netherlands
| | - D L A C Leseman
- a National Institute for Public Health and the Environment (RIVM) , Bilthoven , Netherlands
| | - K Augsburg
- e Technical University Ilmenau , Ilmenau , Germany
| | - F R Cassee
- a National Institute for Public Health and the Environment (RIVM) , Bilthoven , Netherlands
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15
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Song Y, Li R, Zhang Y, Wei J, Chen W, Chung CKA, Cai Z. Mass spectrometry-based metabolomics reveals the mechanism of ambient fine particulate matter and its components on energy metabolic reprogramming in BEAS-2B cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:3139-3150. [PMID: 30463164 DOI: 10.1016/j.scitotenv.2018.10.171] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/11/2018] [Accepted: 10/11/2018] [Indexed: 05/25/2023]
Abstract
Exposure to airborne fine particulate matter (PM2.5) is associated with various adverse effects. However, the molecular mechanism involved in PM2.5-elicited energy metabolic reprogramming and the toxic chemical determinants within PM2.5 are not well elucidated. In this study, nontargeted and targeted metabolomics research were conducted to investigate the overall metabolic changes and relevant toxicological pathways caused by Taiyuan winter total PM2.5 and its water soluble and organic soluble fractions in human lung bronchial epithelial cells (BEAS-2B). The results showed that significant metabolome alterations in BEAS-2B cells were observed after the exposure of total PM2.5 and its organic soluble fraction. Purine metabolism, arginine and proline metabolism, glutathione (GSH) metabolism, tricarboxylic acid (TCA) cycle and glycolysis were mainly affected. Along with a significant increase of reactive oxygen species (ROS), malondialdehyde (MDA), nitric oxide (NO) and pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β), obvious metabolic phenotype remodeling from oxidative phosphorylation to glycolysis was found in BEAS-2B cells treated with total PM2.5 and its organic soluble fraction. Compared with water soluble fraction, organic soluble fraction was found to play the dominant role in PM2.5 toxicity. Our study provided novel insights into the mechanism of PM2.5-elicited toxicity.
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Affiliation(s)
- Yuanyuan Song
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Ruijin Li
- Institute of Environmental Science, Shanxi University, Taiyuan, China
| | - Yanhao Zhang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Juntong Wei
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Wei Chen
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Chi Kong Arthur Chung
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China; School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, China.
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16
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Onishi T, Honda A, Tanaka M, Chowdhury PH, Okano H, Okuda T, Shishido D, Terui Y, Hasegawa S, Kameda T, Tohno S, Hayashi M, Nishita-Hara C, Hara K, Inoue K, Yasuda M, Hirano S, Takano H. Ambient fine and coarse particles in Japan affect nasal and bronchial epithelial cells differently and elicit varying immune response. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:1693-1701. [PMID: 30086990 DOI: 10.1016/j.envpol.2018.07.103] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 07/20/2018] [Accepted: 07/22/2018] [Indexed: 06/08/2023]
Abstract
Ambient particulate matter (PM) epidemiologically exacerbates respiratory and immune health, including allergic rhinitis (AR) and bronchial asthma (BA). Although fine and coarse particles can affect respiratory tract, the differences in their effects on the upper and lower respiratory tract and immune system, their underlying mechanism, and the components responsible for the adverse health effects have not been yet completely elucidated. In this study, ambient fine and coarse particles were collected at three different locations in Japan by cyclone technique. Both particles collected at all locations decreased the viability of nasal epithelial cells and antigen presenting cells (APCs), increased the production of IL-6, IL-8, and IL-1β from bronchial epithelial cells and APCs, and induced expression of dendritic and epithelial cell (DEC) 205 on APCs. Differences in inflammatory responses, but not in cytotoxicity, were shown between both particles, and among three locations. Some components such as Ti, Co, Zn, Pb, As, OC (organic carbon) and EC (elemental carbon) showed significant correlations to inflammatory responses or cytotoxicity. These results suggest that ambient fine and coarse particles differently affect nasal and bronchial epithelial cells and immune response, which may depend on particles size diameter, chemical composition and source related particles types.
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Affiliation(s)
- Toshinori Onishi
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan; Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akiko Honda
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan.
| | - Michitaka Tanaka
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Pratiti H Chowdhury
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Hitoshi Okano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Tomoaki Okuda
- Faculty of Science and Technology, Keio University, Kanagawa, Japan
| | - Daiki Shishido
- Faculty of Science and Technology, Keio University, Kanagawa, Japan
| | - Yoshihiro Terui
- Faculty of Science and Technology, Keio University, Kanagawa, Japan
| | | | | | - Susumu Tohno
- Graduate School of Energy Science, Kyoto University, Japan
| | - Masahiko Hayashi
- Fukuoka Institute of Atmospheric Environment and Health, Fukuoka University, Japan
| | - Chiharu Nishita-Hara
- Fukuoka Institute of Atmospheric Environment and Health, Fukuoka University, Japan
| | - Keiichiro Hara
- Fukuoka Institute of Atmospheric Environment and Health, Fukuoka University, Japan
| | | | - Makoto Yasuda
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shigeru Hirano
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hirohisa Takano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
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17
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Are People With a History of Disease More Susceptible to a Short-term Exposure to Asian Dust?: A Case-Crossover Study Among the Elderly in Japan. Epidemiology 2018; 28 Suppl 1:S60-S66. [PMID: 29028677 DOI: 10.1097/ede.0000000000000700] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Factors influencing the susceptibility of the elderly to the adverse health effects of short-term exposure to desert dust have yet to be explored. We aimed to identify the disease histories that increase the susceptibility of the elderly to disease onset induced by dust events. METHODS We used a time-stratified case-crossover design using data on 17,874 elderly residents (≥65 years) of Okayama, Japan, who were transported to hospital emergency rooms because of cardiovascular and respiratory diseases between 2006 and 2010. We used conditional logistic models to calculate the odds ratios (ORs) per interquartile increase of Asian dust. We then conducted stratified analyses based on patients with or without a history of chronic disease. RESULTS Dust concentration was associated with a higher risk of cardiovascular (3-day lag), cerebrovascular (same day), and respiratory (3-day lag) disease onset. Patients with a history of respiratory disease had a higher risk of cardiovascular (OR: 1.09 [95% confidence interval (CI) = 1.00, 1.19] vs. 0.99 [0.97, 1.01]; P for interaction = 0.03) or cerebrovascular (1.15 [1.01, 1.31] vs. 0.99 [0.97, 1.01]; P = 0.02) disease onset (2-day lag) than those without. Patients with diabetes also had a higher risk of cerebrovascular disease onset (1.09 [1.00, 1.19] vs. 0.99 [0.97, 1.01]; P = 0.05) (2-day lag). In contrast, patients with a history of cerebrovascular disease had a lower risk of respiratory disease. CONCLUSIONS People with a history of respiratory disease or diabetes might have a greater susceptibility to cardiovascular disease from Asian dust and would therefore benefit from proactive interventions during desert dust events.
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18
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Hime NJ, Marks GB, Cowie CT. A Comparison of the Health Effects of Ambient Particulate Matter Air Pollution from Five Emission Sources. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E1206. [PMID: 29890638 PMCID: PMC6024892 DOI: 10.3390/ijerph15061206] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 05/27/2018] [Accepted: 06/05/2018] [Indexed: 12/11/2022]
Abstract
This article briefly reviews evidence of health effects associated with exposure to particulate matter (PM) air pollution from five common outdoor emission sources: traffic, coal-fired power stations, diesel exhaust, domestic wood combustion heaters, and crustal dust. The principal purpose of this review is to compare the evidence of health effects associated with these different sources with a view to answering the question: Is exposure to PM from some emission sources associated with worse health outcomes than exposure to PM from other sources? Answering this question will help inform development of air pollution regulations and environmental policy that maximises health benefits. Understanding the health effects of exposure to components of PM and source-specific PM are active fields of investigation. However, the different methods that have been used in epidemiological studies, along with the differences in populations, emission sources, and ambient air pollution mixtures between studies, make the comparison of results between studies problematic. While there is some evidence that PM from traffic and coal-fired power station emissions may elicit greater health effects compared to PM from other sources, overall the evidence to date does not indicate a clear ‘hierarchy’ of harmfulness for PM from different emission sources. Further investigations of the health effects of source-specific PM with more advanced approaches to exposure modeling, measurement, and statistics, are required before changing the current public health protection approach of minimising exposure to total PM mass.
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Affiliation(s)
- Neil J Hime
- Woolcock Institute of Medical Research, University of Sydney, 431 Glebe Point Road, Glebe, Sydney, NSW 2037, Australia.
- The Sydney School of Public Health, University of Sydney Medical School, Sydney, NSW 2006, Australia.
| | - Guy B Marks
- Woolcock Institute of Medical Research, University of Sydney, 431 Glebe Point Road, Glebe, Sydney, NSW 2037, Australia.
- South West Sydney Clinical School, University of New South Wales, Goulburn Street, Liverpool, Sydney, NSW 2170, Australia.
- Ingham Institute of Applied Medical Research, 1 Campbell Street, Liverpool, Sydney, NSW 2170, Australia.
| | - Christine T Cowie
- Woolcock Institute of Medical Research, University of Sydney, 431 Glebe Point Road, Glebe, Sydney, NSW 2037, Australia.
- South West Sydney Clinical School, University of New South Wales, Goulburn Street, Liverpool, Sydney, NSW 2170, Australia.
- Ingham Institute of Applied Medical Research, 1 Campbell Street, Liverpool, Sydney, NSW 2170, Australia.
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Jarvis IW, Enlo‐Scott Z, Nagy E, Mudway IS, Tetley TD, Arlt VM, Phillips DH, Gollapudi B. Genotoxicity of fine and coarse fraction ambient particulate matter in immortalised normal (TT1) and cancer-derived (A549) alveolar epithelial cells. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2018; 59:290-301. [PMID: 29368350 PMCID: PMC5947684 DOI: 10.1002/em.22166] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/13/2017] [Accepted: 12/14/2017] [Indexed: 05/04/2023]
Abstract
Human exposure to airborne particulate matter (PM) is associated with adverse cardiopulmonary health effects, including lung cancer. Ambient PM represents a heterogeneous mixture of chemical classes including transition metals, polycyclic aromatic hydrocarbons (PAHs) and their derivatives such as nitro-PAHs, many of which are classified as putative carcinogens. As the primary site of human exposure to PM is the lungs, we investigated the response of two alveolar epithelial cell lines, the tumour-derived A549 and newly described TT1 cells, to fine and coarse PM collected from background and roadside locations. We show that coarse PM elicits a genotoxic response in the TT1 cells, with the strongest signal associated with the background sample. This response could be recapitulated using the organic extract derived from this sample. No responses were observed in PM-challenged A549 cells. Fine PM failed to elicit a genotoxic response in either cell line despite the higher PAH concentrations within this fraction. Consistent with the lack of a simplistic association between PM PAH content and the observed genotoxic response, TT1 cells treated with benzo[a]pyrene (BaP) demonstrated no increase in the selected markers. In contrast, a pattern of response was observed in TT1 cells challenged with 3-nitrobenzanthrone (3-NBA) similar to that with coarse PM. Together, these data illustrated the suitability of the TT1 cell line for assessing PM-induced genotoxicity and challenge the contention that fine roadside PM poses the higher cancer risk. Furthermore, the response to 3-NBA and not BaP suggests a major contribution of nitro-PAHs to the overall toxicity of PM. Environ. Mol. Mutagen. 59:290-301, 2018. © 2018 The Authors Environmental and Molecular Mutagenesis published by Wiley Periodicals, Inc. on behalf of Environmental Mutagen Society.
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Affiliation(s)
- Ian W.H. Jarvis
- Department of Analytical, Environmental and Forensic Sciences, MRC‐PHE Centre for Environment and HealthKing's College LondonLondonUnited Kingdom
- NIHR HPRU in Health Impact of Environmental Hazards at King's College London in Partnership with Public Health England in collaboration with Imperial College LondonLondonUnited Kingdom
| | - Zachary Enlo‐Scott
- Department of Analytical, Environmental and Forensic Sciences, MRC‐PHE Centre for Environment and HealthKing's College LondonLondonUnited Kingdom
| | - Eszter Nagy
- Department of Analytical, Environmental and Forensic Sciences, MRC‐PHE Centre for Environment and HealthKing's College LondonLondonUnited Kingdom
| | - Ian S. Mudway
- Department of Analytical, Environmental and Forensic Sciences, MRC‐PHE Centre for Environment and HealthKing's College LondonLondonUnited Kingdom
- NIHR HPRU in Health Impact of Environmental Hazards at King's College London in Partnership with Public Health England in collaboration with Imperial College LondonLondonUnited Kingdom
| | - Teresa D. Tetley
- NIHR HPRU in Health Impact of Environmental Hazards at King's College London in Partnership with Public Health England in collaboration with Imperial College LondonLondonUnited Kingdom
- Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College LondonLondonUnited Kingdom
| | - Volker M. Arlt
- Department of Analytical, Environmental and Forensic Sciences, MRC‐PHE Centre for Environment and HealthKing's College LondonLondonUnited Kingdom
- NIHR HPRU in Health Impact of Environmental Hazards at King's College London in Partnership with Public Health England in collaboration with Imperial College LondonLondonUnited Kingdom
| | - David H. Phillips
- Department of Analytical, Environmental and Forensic Sciences, MRC‐PHE Centre for Environment and HealthKing's College LondonLondonUnited Kingdom
- NIHR HPRU in Health Impact of Environmental Hazards at King's College London in Partnership with Public Health England in collaboration with Imperial College LondonLondonUnited Kingdom
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20
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Kole PJ, Löhr AJ, Van Belleghem FGAJ, Ragas AMJ. Wear and Tear of Tyres: A Stealthy Source of Microplastics in the Environment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14101265. [PMID: 29053641 PMCID: PMC5664766 DOI: 10.3390/ijerph14101265] [Citation(s) in RCA: 462] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/11/2017] [Accepted: 10/16/2017] [Indexed: 12/14/2022]
Abstract
Wear and tear from tyres significantly contributes to the flow of (micro-)plastics into the environment. This paper compiles the fragmented knowledge on tyre wear and tear characteristics, amounts of particles emitted, pathways in the environment, and the possible effects on humans. The estimated per capita emission ranges from 0.23 to 4.7 kg/year, with a global average of 0.81 kg/year. The emissions from car tyres (100%) are substantially higher than those of other sources of microplastics, e.g., airplane tyres (2%), artificial turf (12–50%), brake wear (8%) and road markings (5%). Emissions and pathways depend on local factors like road type or sewage systems. The relative contribution of tyre wear and tear to the total global amount of plastics ending up in our oceans is estimated to be 5–10%. In air, 3–7% of the particulate matter (PM2.5) is estimated to consist of tyre wear and tear, indicating that it may contribute to the global health burden of air pollution which has been projected by the World Health Organization (WHO) at 3 million deaths in 2012. The wear and tear also enters our food chain, but further research is needed to assess human health risks. It is concluded here that tyre wear and tear is a stealthy source of microplastics in our environment, which can only be addressed effectively if awareness increases, knowledge gaps on quantities and effects are being closed, and creative technical solutions are being sought. This requires a global effort from all stakeholders; consumers, regulators, industry and researchers alike.
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Affiliation(s)
- Pieter Jan Kole
- Department of Science, Faculty of Management, Science & Technology, Open University of The Netherlands, 6419 AT Heerlen, The Netherlands.
| | - Ansje J Löhr
- Department of Science, Faculty of Management, Science & Technology, Open University of The Netherlands, 6419 AT Heerlen, The Netherlands.
| | - Frank G A J Van Belleghem
- Department of Science, Faculty of Management, Science & Technology, Open University of The Netherlands, 6419 AT Heerlen, The Netherlands.
- Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, BE 3590 Diepenbeek, Belgium.
| | - Ad M J Ragas
- Department of Science, Faculty of Management, Science & Technology, Open University of The Netherlands, 6419 AT Heerlen, The Netherlands.
- Institute of Water and Wetland Research, Faculty of Science, Radboud University Nijmegen, 6525 AJ Nijmegen, The Netherlands.
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Roper C, Chubb LG, Cambal L, Tunno B, Clougherty JE, Fattman C, Mischler SE. Association of IL-6 with PM 2.5 Components: Importance of Characterizing Filter-Based PM 2.5 Following Extraction. WATER, AIR, AND SOIL POLLUTION 2017; 228:43. [PMID: 28989204 PMCID: PMC5628506 DOI: 10.1007/s11270-016-3219-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Filter-based toxicology studies are conducted to establish the biological plausibility of the well-established health impacts associated with fine particulate matter (PM2.5) exposure. Ambient PM2.5 collected on filters is extracted into solution for toxicology applications, but frequently, characterization is nonexistent or only performed on filter-based PM2.5, without consideration of compositional differences that occur during the extraction processes. To date, the impact of making associations to measured components in ambient instead of extracted PM2.5 has not been investigated. Filter-based PM2.5 was collected at locations (n = 5) and detailed characterization of both ambient and extracted PM2.5 was performed. Alveolar macrophages (AMJ2-C11) were exposed (3, 24, and 48 h) to PM2.5 and the pro-inflammatory cytokine interleukin (IL)-6 was measured. IL-6 release differed significantly between PM2.5 collected from different locations; surprisingly, IL-6 release was highest following treatment with PM2.5 from the lowest ambient concentration location. IL-6 was negatively correlated with the sum of ambient metals analyzed, as well as with concentrations of specific constituents which have been previously associated with respiratory health effects. However, positive correlations of IL-6 with extracted concentrations indicated that the negative associations between IL-6 and ambient concentrations do not accurately represent the relationship between inflammation and PM2.5 exposure. Additionally, seven organic compounds had significant associations with IL-6 release when considering ambient concentrations, but they were not detected in the extracted solution. Basing inflammatory associations on ambient concentrations that are not necessarily representative of in vitro exposures creates misleading results; this study highlights the importance of characterizing extraction solutions to conduct accurate health impact research.
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Affiliation(s)
- Courtney Roper
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Lauren G Chubb
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA, Office of Mine Safety and Health Research, National Institute for Occupational Safety and Health, Pittsburgh, PA, USA
| | - Leah Cambal
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Brett Tunno
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Jane E Clougherty
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Cheryl Fattman
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Steven E Mischler
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA, Office of Mine Safety and Health Research, National Institute for Occupational Safety and Health, Pittsburgh, PA, USA
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22
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Braakhuis HM, Giannakou C, Peijnenburg WJGM, Vermeulen J, van Loveren H, Park MVDZ. Simple in vitro models can predict pulmonary toxicity of silver nanoparticles. Nanotoxicology 2016; 10:770-9. [PMID: 26809698 DOI: 10.3109/17435390.2015.1127443] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
To study the effects of nanomaterials after inhalation, a large number of in vitro lung models have been reported in literature. Although the in vitro models contribute to the reduction of animal studies, insufficient data exists to determine the predictive value of these in vitro models for the in vivo situation. The aim of this study was to determine the correlation between in vitro and in vivo data by comparing the dose metrics of silver nanoparticles in an in vitro lung model of increasing complexity to our previously published in vivo inhalation study. In vivo, the previously published study showed that the alveolar dose expressed as particle surface area is the most suitable dose metric to describe the toxicity of silver nanoparticles after inhalation. The results of the present study show that particle surface area is a suitable dose metric to describe the effects of silver nanoparticles when using a simple monolayer of lung epithelial cells. The dose metric shifted from particle surface area to particle mass when adding an increasing number of macrophages. In addition, a co-culture of endothelial cells, epithelial cells and macrophages on a Transwell® insert correlated less well to the in vivo results compared to the epithelial monolayer. We conclude that for studying the acute pulmonary toxicity of nanoparticles simple in vitro models using an epithelial monolayer better predict the in vivo response compared to complex co-culture models.
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Affiliation(s)
- Hedwig M Braakhuis
- a Department of Toxicogenomics , Maastricht University , Maastricht , the Netherlands .,b National Institute for Public Health and the Environment (RIVM) , Bilthoven , the Netherlands , and
| | - Christina Giannakou
- a Department of Toxicogenomics , Maastricht University , Maastricht , the Netherlands .,b National Institute for Public Health and the Environment (RIVM) , Bilthoven , the Netherlands , and
| | - Willie J G M Peijnenburg
- b National Institute for Public Health and the Environment (RIVM) , Bilthoven , the Netherlands , and.,c Centre for Environmental Sciences, University Leiden , Leiden , the Netherlands
| | - Jolanda Vermeulen
- b National Institute for Public Health and the Environment (RIVM) , Bilthoven , the Netherlands , and
| | - Henk van Loveren
- a Department of Toxicogenomics , Maastricht University , Maastricht , the Netherlands .,b National Institute for Public Health and the Environment (RIVM) , Bilthoven , the Netherlands , and
| | - Margriet V D Z Park
- b National Institute for Public Health and the Environment (RIVM) , Bilthoven , the Netherlands , and
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23
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Roper C, Chubb LG, Cambal L, Tunno B, Clougherty JE, Mischler SE. Characterization of ambient and extracted PM2.5 collected on filters for toxicology applications. Inhal Toxicol 2015; 27:673-81. [PMID: 26446919 DOI: 10.3109/08958378.2015.1092185] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Research on the health effects of fine particulate matter (PM2.5) frequently disregards the differences in particle composition between that measured on an ambient filter versus that measured in the corresponding extraction solution used for toxicological testing. This study presents a novel method for characterizing the differences, in metallic and organic species, between the ambient samples and the corresponding extracted solutions through characterization of extracted PM2.5 suspended on filters. Removal efficiency was found to be 98.0 ± 1.4% when measured using pre- and post-removal filter weights, however, this efficiency was significantly reduced to 80.2 ± 0.8% when measured based on particle mass in the extraction solution. Furthermore, only 47.2 ± 22.3% of metals and 24.8 ± 14.5% of organics measured on the ambient filter were found in the extraction solution. Individual metallic and organic components were extracted with varying efficiency, with many organics being lost entirely during extraction. Finally, extraction efficiencies of specific PM2.5 components were inversely correlated with total mass. This study details a method to assess compositional alterations resulting from extraction of PM2.5 from filters, emphasizing the need for standardized procedures that maintain compositional integrity of ambient samples for use in toxicology studies of PM2.5.
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Affiliation(s)
- Courtney Roper
- a Department of Environmental and Occupational Health , University of Pittsburgh Graduate School of Public Health , Pittsburgh , PA , USA and
| | - Lauren G Chubb
- a Department of Environmental and Occupational Health , University of Pittsburgh Graduate School of Public Health , Pittsburgh , PA , USA and
| | - Leah Cambal
- a Department of Environmental and Occupational Health , University of Pittsburgh Graduate School of Public Health , Pittsburgh , PA , USA and
| | - Brett Tunno
- a Department of Environmental and Occupational Health , University of Pittsburgh Graduate School of Public Health , Pittsburgh , PA , USA and
| | - Jane E Clougherty
- a Department of Environmental and Occupational Health , University of Pittsburgh Graduate School of Public Health , Pittsburgh , PA , USA and
| | - Steven E Mischler
- a Department of Environmental and Occupational Health , University of Pittsburgh Graduate School of Public Health , Pittsburgh , PA , USA and.,b National Institute for Occupational Safety and Health, Office of Mine Safety and Health Research , Pittsburgh , PA , USA
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24
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Chen BC, Luo J, Hendryx M. Zinc compound air releases from Toxics Release Inventory facilities and cardiovascular disease mortality rates. ENVIRONMENTAL RESEARCH 2015; 142:96-103. [PMID: 26121293 DOI: 10.1016/j.envres.2015.06.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 06/05/2015] [Accepted: 06/18/2015] [Indexed: 05/22/2023]
Abstract
BACKGROUND Inhaled zinc has been found in association with cardiopulmonary toxicity. However, limited human epidemiologic studies are available. This study analyzed the association between covariate-adjusted cardiovascular (CVD) mortality rates and zinc compound air releases in the United States. METHODS We conducted an ecological analysis on the association between zinc compound air releases for 1991-2000 using the Toxics Release Inventory database and average age-adjusted CVD mortality for 2006-2010, adjusting for race/ethnicity composition and several health and socioeconomic factors. Models were estimated for males and females and for metropolitan and nonmetropolitan counties. RESULTS Zinc compound air releases were positively associated with increased adjusted CVD mortality rates in all four models (β=0.0085, p<0.0001 for males in nonmetropolitan counties; β=0.0093, p<0.0001 for males in metropolitan counties; β=0.0145, p<0.0001 for females in nonmetropolitan counties; and β=0.0098, p<0.0001 for females in metropolitan counties). Results were largely robust to various sensitivity analyses. CONCLUSION This study provides epidemiological evidence for possible CVD health impacts of inhaled zinc in the United States. Although the strongest effect was found for females in nonmetropolitan counties, the associations were consistent in nonmetropolitan or metropolitan counties for both genders.
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Affiliation(s)
- Bo-chiuan Chen
- Department of Applied Health Science, School of Public Health, Indiana University Bloomington, 1025 E. 7th Street, Suite 111, Bloomington, IN 47405, USA
| | - Juhua Luo
- Department of Epidemiology and Biostatistics, School of Public Health, Indiana University Bloomington, 1025 E. 7th Street, Suite 111, Bloomington, IN 47405, USA
| | - Michael Hendryx
- Department of Applied Health Science, School of Public Health, Indiana University Bloomington, 1025 E. 7th Street, Suite 111, Bloomington, IN 47405, USA.
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25
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Adar SD, D'Souza J, Mendelsohn-Victor K, Jacobs DR, Cushman M, Sheppard L, Thorne PS, Burke GL, Daviglus ML, Szpiro AA, Diez Roux AV, Kaufman JD, Larson TV. Markers of inflammation and coagulation after long-term exposure to coarse particulate matter: a cross-sectional analysis from the multi-ethnic study of atherosclerosis. ENVIRONMENTAL HEALTH PERSPECTIVES 2015; 123:541-8. [PMID: 25616153 PMCID: PMC4455582 DOI: 10.1289/ehp.1308069] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Accepted: 01/16/2015] [Indexed: 05/11/2023]
Abstract
BACKGROUND Toxicological research suggests that coarse particles (PM10-2.5) are inflammatory, but responses are complex and may be best summarized by multiple inflammatory markers. Few human studies have investigated associations with PM10-2.5 and, of those, none have explored long-term exposures. Here we examine long-term associations with inflammation and coagulation in the Multi-Ethnic Study of Atherosclerosis. METHODS Participants included 3,295 adults (45-84 years of age) from three metropolitan areas. Site-specific spatial models were used to estimate 5-year concentrations of PM10-2.5 mass and copper, zinc, phosphorus, silicon, and endotoxin found in PM10-2.5. Outcomes included interleukin-6, C-reactive protein, fibrinogen, total homocysteine, D-dimer, factor VIII, plasmin-antiplasmin complex, and inflammation and coagulation scores. We used multivariable regression with multiply imputed data to estimate associations while controlling for potential confounders, including co-pollutants such as fine particulate matter. RESULTS Some limited evidence was found of relationships between inflammation and coagulation and PM10-2.5. Endotoxin was the PM10-2.5 component most strongly associated with inflammation, with an interquartile range (IQR) increase (0.08 EU/m3) associated with 0.15 (95% CI: 0.01, 0.28; p = 0.03) and 0.08 (95% CI: -0.07, 0.23; p = 0.28) higher inflammation scores before and after control for city, respectively. Copper was the component with the strongest association with coagulation, with a 4-ng/m3 increase associated with 0.19 (95% CI: 0.08, 0.30; p = 0.0008) and 0.12 (95% CI: -0.05, 0.30; p = 0.16) unit higher coagulation scores before and after city adjustment, respectively. CONCLUSIONS Our cross-sectional analysis provided some evidence that long-term PM10-2.5 exposure was associated with inflammation and coagulation, but associations were modest and depended on particle composition.
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Affiliation(s)
- Sara D Adar
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA
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26
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Braakhuis HM, Cassee FR, Fokkens PH, de la Fonteyne LJ, Oomen AG, Krystek P, de Jong WH, van Loveren H, Park MV. Identification of the appropriate dose metric for pulmonary inflammation of silver nanoparticles in an inhalation toxicity study. Nanotoxicology 2015; 10:63-73. [DOI: 10.3109/17435390.2015.1012184] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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27
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Michikawa T, Ueda K, Takeuchi A, Tamura K, Kinoshita M, Ichinose T, Nitta H. Coarse particulate matter and emergency ambulance dispatches in Fukuoka, Japan: a time-stratified case-crossover study. Environ Health Prev Med 2014; 20:130-6. [PMID: 25533085 DOI: 10.1007/s12199-014-0439-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 12/11/2014] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES There is no conclusive evidence of adverse health effects caused by short-term exposure to coarse particulate matter, so in this case-crossover study we looked for an association between exposure and emergency ambulance dispatches (as a proxy of acute health outcomes). METHODS We used data on emergency ambulance dispatches in Fukuoka City, Japan between 2005 and 2010. After excluding ambulance dispatches related to external injuries and pregnancy/childbirth, we analyzed data on 176,123 dispatches. Citywide daily mean concentrations of suspended particulate matter (SPM) and fine particulate matter (PM2.5) were calculated from ambient monitoring data, and the differences between concentrations of SPM and PM2.5 were used as an exposure surrogate of coarse particulate matter. Using a conditional logistic regression model, we estimated the ambient temperature and relative humidity adjusted odds ratios (ORs) per 10 μg/m(3) increase in coarse particulate matter. RESULTS The average daily concentration of coarse particulate matter over the study period was 9.9 μg/m(3), representing 33% of the total concentration of SPM. Elevated concentrations of coarse particulate matter were associated with an increase in respiratory disease-related emergency ambulance dispatches for adults aged 65 years or older (9,716 dispatches, OR for lag0-1 = 1.065, 95% confidence interval = 1.023-1.109). After additional adjustment for exposure to PM2.5, we observed a statistically non-significant increased risk (OR = 1.035, 0.986-1.086). CONCLUSIONS We found weak evidence of adverse effects of short-term exposure to coarse particulate matter on human health.
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Affiliation(s)
- Takehiro Michikawa
- Center for Environmental Health Sciences, National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki, 305-8506, Japan,
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28
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Asian Dust and Daily Emergency Ambulance Calls Among Elderly People in Japan. J Occup Environ Med 2014; 56:1277-83. [DOI: 10.1097/jom.0000000000000334] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Møller P, Danielsen PH, Karottki DG, Jantzen K, Roursgaard M, Klingberg H, Jensen DM, Christophersen DV, Hemmingsen JG, Cao Y, Loft S. Oxidative stress and inflammation generated DNA damage by exposure to air pollution particles. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2014; 762:133-66. [DOI: 10.1016/j.mrrev.2014.09.001] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 09/04/2014] [Accepted: 09/04/2014] [Indexed: 01/09/2023]
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30
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Cassee FR, Héroux ME, Gerlofs-Nijland ME, Kelly FJ. Particulate matter beyond mass: recent health evidence on the role of fractions, chemical constituents and sources of emission. Inhal Toxicol 2014; 25:802-12. [PMID: 24304307 PMCID: PMC3886392 DOI: 10.3109/08958378.2013.850127] [Citation(s) in RCA: 253] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Particulate matter (PM) is regulated in various parts of the world based on specific size cut offs, often expressed as 10 or 2.5 µm mass median aerodynamic diameter. This pollutant is deemed one of the most dangerous to health and moreover, problems persist with high ambient concentrations. Continuing pressure to re-evaluate ambient air quality standards stems from research that not only has identified effects at low levels of PM but which also has revealed that reductions in certain components, sources and size fractions may best protect public health. Considerable amount of published information have emerged from toxicological research in recent years. Accumulating evidence has identified additional air quality metrics (e.g. black carbon, secondary organic and inorganic aerosols) that may be valuable in evaluating the health risks of, for example, primary combustion particles from traffic emissions, which are not fully taken into account with PM2.5 mass. Most of the evidence accumulated so far is for an adverse effect on health of carbonaceous material from traffic. Traffic-generated dust, including road, brake and tire wear, also contribute to the adverse effects on health. Exposure durations from a few minutes up to a year have been linked with adverse effects. The new evidence collected supports the scientific conclusions of the World Health Organization Air Quality Guidelines and also provides scientific arguments for taking decisive actions to improve air quality and reduce the global burden of disease associated with air pollution.
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Affiliation(s)
- Flemming R Cassee
- Department for Environmental Health, National Institute for Public Health and the Environment , Bilthoven , The Netherlands
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31
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Cai Y, Schikowski T, Adam M, Buschka A, Carsin AE, Jacquemin B, Marcon A, Sanchez M, Vierkötter A, Al-Kanaani Z, Beelen R, Birk M, Brunekreef B, Cirach M, Clavel-Chapelon F, Declercq C, de Hoogh K, de Nazelle A, Ducret-Stich RE, Valeria Ferretti V, Forsberg B, Gerbase MW, Hardy R, Heinrich J, Hoek G, Jarvis D, Keidel D, Kuh D, Nieuwenhuijsen MJ, Ragettli MS, Ranzi A, Rochat T, Schindler C, Sugiri D, Temam S, Tsai MY, Varraso R, Kauffmann F, Krämer U, Sunyer J, Künzli N, Probst-Hensch N, Hansell AL. Cross-sectional associations between air pollution and chronic bronchitis: an ESCAPE meta-analysis across five cohorts. Thorax 2014; 69:1005-14. [PMID: 25112730 DOI: 10.1136/thoraxjnl-2013-204352] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND This study aimed to assess associations of outdoor air pollution on prevalence of chronic bronchitis symptoms in adults in five cohort studies (Asthma-E3N, ECRHS, NSHD, SALIA, SAPALDIA) participating in the European Study of Cohorts for Air Pollution Effects (ESCAPE) project. METHODS Annual average particulate matter (PM(10), PM(2.5), PM(absorbance), PM(coarse)), NO(2), nitrogen oxides (NO(x)) and road traffic measures modelled from ESCAPE measurement campaigns 2008-2011 were assigned to home address at most recent assessments (1998-2011). Symptoms examined were chronic bronchitis (cough and phlegm for ≥3 months of the year for ≥2 years), chronic cough (with/without phlegm) and chronic phlegm (with/without cough). Cohort-specific cross-sectional multivariable logistic regression analyses were conducted using common confounder sets (age, sex, smoking, interview season, education), followed by meta-analysis. RESULTS 15 279 and 10 537 participants respectively were included in the main NO(2) and PM analyses at assessments in 1998-2011. Overall, there were no statistically significant associations with any air pollutant or traffic exposure. Sensitivity analyses including in asthmatics only, females only or using back-extrapolated NO(2) and PM10 for assessments in 1985-2002 (ECRHS, NSHD, SALIA, SAPALDIA) did not alter conclusions. In never-smokers, all associations were positive, but reached statistical significance only for chronic phlegm with PM(coarse) OR 1.31 (1.05 to 1.64) per 5 µg/m(3) increase and PM(10) with similar effect size. Sensitivity analyses of older cohorts showed increased risk of chronic cough with PM(2.5abs) (black carbon) exposures. CONCLUSIONS Results do not show consistent associations between chronic bronchitis symptoms and current traffic-related air pollution in adult European populations.
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Affiliation(s)
- Yutong Cai
- Department of Epidemiology & Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, UK
| | - Tamara Schikowski
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland Leibniz Research Institute for Environmental Medicine (IUF), Düsseldorf, Germany
| | - Martin Adam
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Anna Buschka
- Leibniz Research Institute for Environmental Medicine (IUF), Düsseldorf, Germany
| | - Anne-Elie Carsin
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
| | - Benedicte Jacquemin
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain INSERM, CESP Centre for research in Epidemiology and Population Health, U1018, Respiratory and Environmental epidemiology team, Villejuif, France. Université Paris Sud 11, UMRS 1018, F-94807, Villejuif, France
| | - Alessandro Marcon
- Unit of Epidemiology and Medical Statistics, Department of Public Health and Community Medicine, University of Verona, Verona, Italy
| | - Margaux Sanchez
- INSERM, CESP Centre for research in Epidemiology and Population Health, U1018, Respiratory and Environmental epidemiology team, Villejuif, France. Université Paris Sud 11, UMRS 1018, F-94807, Villejuif, France
| | - Andrea Vierkötter
- Leibniz Research Institute for Environmental Medicine (IUF), Düsseldorf, Germany
| | - Zaina Al-Kanaani
- Department of Epidemiology & Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, UK
| | - Rob Beelen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Matthias Birk
- German Research Centre for Environmental Health, Institutes of Epidemiology I and II, Neuherberg, Germany
| | - Bert Brunekreef
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Marta Cirach
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
| | - Françoise Clavel-Chapelon
- Université Paris Sud 11, UMRS 1018, F-94807, Villejuif, France INSERM, CESP Centre for research in Epidemiology and Population Health, U1018, Nutrition, Hormones, and Women's Health team, Villejuif, France
| | | | - Kees de Hoogh
- Department of Epidemiology & Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, UK Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Audrey de Nazelle
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain Centre for Environmental Policy, Imperial College London, London, UK
| | - Regina E Ducret-Stich
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Virginia Valeria Ferretti
- Section of Biostatistics and Clinical Epidemiology, Department of Public Health, Neuroscience, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Bertil Forsberg
- Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umea University, Umea, Sweden
| | - Margaret W Gerbase
- Division of Pulmonary Medicine, University Hospitals of Geneva, Geneva, Switzerland
| | - Rebecca Hardy
- MRC Unit for Lifelong Health and Ageing at UCL, Institute of Epidemiology and Health Care, University College London, London, UK
| | - Joachim Heinrich
- German Research Centre for Environmental Health, Institutes of Epidemiology I and II, Neuherberg, Germany
| | - Gerard Hoek
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Debbie Jarvis
- Department of Epidemiology & Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, UK Respiratory Epidemiology and Public Health Group, National Heart and Lung Institute, Imperial College London, London, UK
| | - Dirk Keidel
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Diana Kuh
- MRC Unit for Lifelong Health and Ageing at UCL, Institute of Epidemiology and Health Care, University College London, London, UK
| | | | - Martina S Ragettli
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Andrea Ranzi
- Environmental Health Reference Centre, Regional Agency for Environmental Prevention of Emilia Romagna, Modena, Italy
| | - Thierry Rochat
- Division of Pulmonary Medicine, University Hospitals of Geneva, Geneva, Switzerland
| | - Christian Schindler
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Dorothea Sugiri
- Leibniz Research Institute for Environmental Medicine (IUF), Düsseldorf, Germany
| | - Sofia Temam
- INSERM, CESP Centre for research in Epidemiology and Population Health, U1018, Respiratory and Environmental epidemiology team, Villejuif, France. Université Paris Sud 11, UMRS 1018, F-94807, Villejuif, France
| | - Ming-Yi Tsai
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Raphaëlle Varraso
- INSERM, CESP Centre for research in Epidemiology and Population Health, U1018, Respiratory and Environmental epidemiology team, Villejuif, France. Université Paris Sud 11, UMRS 1018, F-94807, Villejuif, France
| | - Francine Kauffmann
- INSERM, CESP Centre for research in Epidemiology and Population Health, U1018, Respiratory and Environmental epidemiology team, Villejuif, France. Université Paris Sud 11, UMRS 1018, F-94807, Villejuif, France
| | - Ursula Krämer
- Leibniz Research Institute for Environmental Medicine (IUF), Düsseldorf, Germany
| | - Jordi Sunyer
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
| | - Nino Künzli
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health Institute, Basel, Switzerland University of Basel, Basel, Switzerland
| | - Anna L Hansell
- Department of Epidemiology & Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, UK Directorate of Public Health and Primary Care, Imperial College Healthcare NHS Trust, London, UK
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32
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Adar SD, Filigrana PA, Clements N, Peel JL. Ambient Coarse Particulate Matter and Human Health: A Systematic Review and Meta-Analysis. Curr Environ Health Rep 2014; 1:258-274. [PMID: 25152864 PMCID: PMC4129238 DOI: 10.1007/s40572-014-0022-z] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Airborne particles have been linked to increased mortality and morbidity. As most research has focused on fine particles (PM2.5), the health implications of coarse particles (PM10-2.5) are not well understood. We conducted a systematic review and meta-analysis of associations for short- and long-term PM10-2.5 concentrations with mortality and hospital admissions. Using 23 mortality and 10 hospital admissions studies, we documented suggestive evidence of increased morbidity and mortality in relation to higher short-term PM10-2.5 concentrations, with stronger relationships for respiratory than cardiovascular endpoints. Reported associations were highly heterogeneous, however, especially by geographic region and average PM10-2.5 concentrations. Adjustment for PM2.5 and publication bias resulted in weaker and less precise effect estimates, although positive associations remained for short-term PM10-2.5 concentrations. Inconsistent relationships between effect estimates for PM10-2.5 and correlations between PM10-2.5 and PM2.5 concentrations, however, indicate that PM10-2.5 associations cannot be solely explained by co-exposure to PM2.5. While suggestive evidence was found of increased mortality with long-term PM10-2.5 concentrations, these associations were not robust to control for PM2.5. Additional research is required to better understand sources of heterogeneity of associations between PM10-2.5 and adverse health outcomes.
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Affiliation(s)
- Sara D. Adar
- Department of Epidemiology, University of Michigan, School of Public Health, 1420 Washington Heights – SPHII-5539, Ann Arbor, MI 48109-2029 USA
| | - Paola A. Filigrana
- Department of Epidemiology, University of Michigan, School of Public Health, 1420 Washington Heights – SPHII-5539, Ann Arbor, MI 48109-2029 USA
| | - Nicholas Clements
- Department of Mechanical Engineering, University of Colorado, 135 30th St., Boulder, CO 80305 USA
| | - Jennifer L. Peel
- Department of Environmental and Radiological Health Sciences, Colorado State University, Campus Delivery 1681, Fort Collins, CO 80523-1681 USA
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Charrier J, McFall AS, Richards-Henderson NK, Anastasio C. Hydrogen peroxide formation in a surrogate lung fluid by transition metals and quinones present in particulate matter. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:7010-7. [PMID: 24857372 PMCID: PMC4063450 DOI: 10.1021/es501011w] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Inhaled ambient particulate matter (PM) causes adverse health effects, possibly by generating reactive oxygen species (ROS), including hydrogen peroxide (HOOH), in the lung lining fluid. There are conflicting reports in the literature as to which chemical components of PM can chemically generate HOOH in lung fluid mimics. It is also unclear which redox-active species are most important for HOOH formation at concentrations relevant to ambient PM. To address this, we use a cell-free, surrogate lung fluid (SLF) to quantify the initial rate of HOOH formation from 10 transition metals and 4 quinones commonly identified in PM. Copper, 1,2-naphthoquinone, 1,4-naphthoquinone, and phenanthrenequinone all form HOOH in a SLF, but only copper and 1,2-naphthoquinone are likely important at ambient concentrations. Iron suppresses HOOH formation in laboratory solutions, but has a smaller effect in ambient PM extracts, possibly because organic ligands in the particles reduce the reactivity of iron. Overall, copper produces the majority of HOOH chemically generated from typical ambient PM while 1,2-naphthoquinone generally makes a small contribution. However, measured rates of HOOH formation in ambient particle extracts are lower than rates calculated from soluble copper by an average (±1σ) of 44 ± 22%; this underestimate is likely due to either HOOH destruction by Fe or a reduction in Cu reactivity due to organic ligands from the PM.
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Affiliation(s)
- Jessica
G. Charrier
- Department of Land, Air and Water
Resources and Department of Chemistry, University of
California—Davis, 1 Shields Avenue, Davis, California 95616, United States
| | - Alexander S. McFall
- Department of Land, Air and Water
Resources and Department of Chemistry, University of
California—Davis, 1 Shields Avenue, Davis, California 95616, United States
| | - Nicole K. Richards-Henderson
- Department of Land, Air and Water
Resources and Department of Chemistry, University of
California—Davis, 1 Shields Avenue, Davis, California 95616, United States
| | - Cort Anastasio
- Department of Land, Air and Water
Resources and Department of Chemistry, University of
California—Davis, 1 Shields Avenue, Davis, California 95616, United States
- Phone: (530) 754-6095; fax: (530) 752-1552; e mail:
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Sokol K, Sur S, Ameredes BT. Inhaled environmental allergens and toxicants as determinants of the asthma phenotype. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 795:43-73. [PMID: 24162902 DOI: 10.1007/978-1-4614-8603-9_4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The driving environmental factors behind the development of the asthma phenotype remain incompletely studied and understood. Here, we present an overview of inhaled allergic/atopic and mainly nonallergic/nonatopic or toxicant shapers of the asthma phenotype, which are present in both the indoor and outdoor environment around us. The inhaled allergic/atopic factors include fungus, mold, animal dander, cockroach, dust mites, and pollen; these allergic triggers and shapers of the asthma phenotype are considered in the context of their ability to drive the immunologic IgE response and potentially induce interactions between the innate and adaptive immune responses, with special emphasis on the NADPH-dependent reactive oxygen-species-associated mechanism of pollen-associated allergy induction. The inhaled nonallergic/nonatopic, toxicant factors include gaseous and volatile agents, such as sulfur dioxide, ozone, acrolein, and butadiene, as well as particulate agents, such as rubber tire breakdown particles, and diesel exhaust particles. These toxicants are reviewed in terms of their relevant chemical characteristics and hazard potential, ability to induce airway dysfunction, and potential for driving the asthma phenotype. Special emphasis is placed on their interactive nature with other triggers and drivers, with regard to driving the asthma phenotype. Overall, both allergic and nonallergic environmental factors can interact to acutely exacerbate the asthma phenotype; some may also promote its development over prolonged periods of untreated exposure, or possibly indirectly through effects on the genome. Further therapeutic considerations should be given to these environmental factors when determining the best course of personalized medicine for individuals with asthma.
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Affiliation(s)
- Kristin Sokol
- Division of Allergy and Immunology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX, 77555, USA,
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35
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Wang M, Beelen R, Stafoggia M, Raaschou-Nielsen O, Andersen ZJ, Hoffmann B, Fischer P, Houthuijs D, Nieuwenhuijsen M, Weinmayr G, Vineis P, Xun WW, Dimakopoulou K, Samoli E, Laatikainen T, Lanki T, Turunen AW, Oftedal B, Schwarze P, Aamodt G, Penell J, De Faire U, Korek M, Leander K, Pershagen G, Pedersen NL, Östenson CG, Fratiglioni L, Eriksen KT, Sørensen M, Tjønneland A, Bueno-de-Mesquita B, Eeftens M, Bots ML, Meliefste K, Krämer U, Heinrich J, Sugiri D, Key T, de Hoogh K, Wolf K, Peters A, Cyrys J, Jaensch A, Concin H, Nagel G, Tsai MY, Phuleria H, Ineichen A, Künzli N, Probst-Hensch N, Schaffner E, Vilier A, Clavel-Chapelon F, Declerq C, Ricceri F, Sacerdote C, Marcon A, Galassi C, Migliore E, Ranzi A, Cesaroni G, Badaloni C, Forastiere F, Katsoulis M, Trichopoulou A, Keuken M, Jedynska A, Kooter IM, Kukkonen J, Sokhi RS, Brunekreef B, Katsouyanni K, Hoek G. Long-term exposure to elemental constituents of particulate matter and cardiovascular mortality in 19 European cohorts: results from the ESCAPE and TRANSPHORM projects. ENVIRONMENT INTERNATIONAL 2014; 66:97-106. [PMID: 24561271 DOI: 10.1016/j.envint.2014.01.026] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 01/16/2014] [Accepted: 01/27/2014] [Indexed: 05/26/2023]
Abstract
BACKGROUND Associations between long-term exposure to ambient particulate matter (PM) and cardiovascular (CVD) mortality have been widely recognized. However, health effects of long-term exposure to constituents of PM on total CVD mortality have been explored in a single study only. AIMS The aim of this study was to examine the association of PM composition with cardiovascular mortality. METHODS We used data from 19 European ongoing cohorts within the framework of the ESCAPE (European Study of Cohorts for Air Pollution Effects) and TRANSPHORM (Transport related Air Pollution and Health impacts--Integrated Methodologies for Assessing Particulate Matter) projects. Residential annual average exposure to elemental constituents within particle matter smaller than 2.5 and 10 μm (PM2.5 and PM10) was estimated using Land Use Regression models. Eight elements representing major sources were selected a priori (copper, iron, potassium, nickel, sulfur, silicon, vanadium and zinc). Cohort-specific analyses were conducted using Cox proportional hazards models with a standardized protocol. Random-effects meta-analysis was used to calculate combined effect estimates. RESULTS The total population consisted of 322,291 participants, with 9545 CVD deaths. We found no statistically significant associations between any of the elemental constituents in PM2.5 or PM10 and CVD mortality in the pooled analysis. Most of the hazard ratios (HRs) were close to unity, e.g. for PM10 Fe the combined HR was 0.96 (0.84-1.09). Elevated combined HRs were found for PM2.5 Si (1.17, 95% CI: 0.93-1.47), and S in PM2.5 (1.08, 95% CI: 0.95-1.22) and PM10 (1.09, 95% CI: 0.90-1.32). CONCLUSION In a joint analysis of 19 European cohorts, we found no statistically significant association between long-term exposure to 8 elemental constituents of particles and total cardiovascular mortality.
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Affiliation(s)
- Meng Wang
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
| | - Rob Beelen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Massimo Stafoggia
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | | | - Zorana Jovanovic Andersen
- Danish Cancer Society Research Center, Copenhagen, Denmark; Center for Epidemiology and Screening, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Barbara Hoffmann
- IUF, Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany; University of Düsseldorf, Düsseldorf, Germany
| | - Paul Fischer
- National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | - Danny Houthuijs
- National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | - Mark Nieuwenhuijsen
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública - CIBERESP), Madrid, Spain
| | - Gudrun Weinmayr
- University of Düsseldorf, Düsseldorf, Germany; Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | - Paolo Vineis
- MRC-HPA Centre for Environment and Health, Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom
| | - Wei W Xun
- MRC-HPA Centre for Environment and Health, Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom; University College London, London, United Kingdom
| | - Konstantina Dimakopoulou
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, University of Athens, Athens, Greece
| | - Evangelia Samoli
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, University of Athens, Athens, Greece
| | - Tiina Laatikainen
- National Institute for Health and Welfare, Kuopio, Finland; Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Timo Lanki
- National Institute for Health and Welfare, Kuopio, Finland
| | - Anu W Turunen
- National Institute for Health and Welfare, Kuopio, Finland
| | | | - Per Schwarze
- Norwegian Institute of Public Health, Oslo, Norway
| | - Geir Aamodt
- Norwegian Institute of Public Health, Oslo, Norway
| | - Johanna Penell
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ulf De Faire
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Michal Korek
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Karin Leander
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Göran Pershagen
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Nancy L Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Claes-Göran Östenson
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Laura Fratiglioni
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | | | - Mette Sørensen
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | | | - Bas Bueno-de-Mesquita
- National Institute of Public Health and the Environment, Bilthoven, The Netherlands; School of Public Health, Imperial College London, London, United Kingdom
| | - Marloes Eeftens
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands; Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Michiel L Bots
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Kees Meliefste
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Ursula Krämer
- IUF, Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Joachim Heinrich
- Institute of Epidemiology I, Helmholtz Zentrum München, German Research Center of Environmental Health, Neuherberg, Germany
| | - Dorothea Sugiri
- IUF, Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Timothy Key
- Cancer Epidemiology Unit, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Kees de Hoogh
- MRC-PHE Centre for Environment and Health, Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom
| | - Kathrin Wolf
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Annette Peters
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Josef Cyrys
- Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany; University of Augsburg, Environmental Science Center, Augsburg, Germany
| | - Andrea Jaensch
- Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | - Hans Concin
- Agency for Preventive and Social Medicine, Bregenz, Austria
| | - Gabriele Nagel
- Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany; Agency for Preventive and Social Medicine, Bregenz, Austria
| | - Ming-Yi Tsai
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Harish Phuleria
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Alex Ineichen
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Nino Künzli
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Emmanuel Schaffner
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Alice Vilier
- Inserm, Centre for Research in Epidemiology and Population Health (CESP), U1018, Nutrition, Hormones and Women's Health Team, Villejuif, France; University Paris Sud, UMRS 1018, Villejuif, France; IGR, Villejuif, France
| | - Françoise Clavel-Chapelon
- Inserm, Centre for Research in Epidemiology and Population Health (CESP), U1018, Nutrition, Hormones and Women's Health Team, Villejuif, France; University Paris Sud, UMRS 1018, Villejuif, France; IGR, Villejuif, France
| | - Christophe Declerq
- French Institute for Public Health Surveillance (InVS) 12, Saint-Maurice, France
| | | | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, AO Citta' della Salute e della Scienza, University of Turin and Center for Cancer Prevention, Turin, Italy
| | - Alessandro Marcon
- Unit of Epidemiology & Medical Statistics, Department of Public Health and Community Medicine, University of Verona, Italy
| | - Claudia Galassi
- Unit of Cancer Epidemiology, AO Citta' della Salute e della Scienza, University of Turin and Center for Cancer Prevention, Turin, Italy
| | - Enrica Migliore
- Unit of Cancer Epidemiology, AO Citta' della Salute e della Scienza, University of Turin and Center for Cancer Prevention, Turin, Italy
| | - Andrea Ranzi
- Environmental Health Reference Centre, Regional Agency for Environmental Prevention of Emilia-Romagna, Modena, Italy
| | - Giulia Cesaroni
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Chiara Badaloni
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | | | | | | | - Menno Keuken
- TNO, Netherlands Organisation for Applied Scientific Research, Utrecht, The Netherlands
| | - Aleksandra Jedynska
- TNO, Netherlands Organisation for Applied Scientific Research, Utrecht, The Netherlands
| | - Ingeborg M Kooter
- TNO, Netherlands Organisation for Applied Scientific Research, Utrecht, The Netherlands
| | | | - Ranjeet S Sokhi
- University of Hertfordshire College Lane, Hatfield, United Kingdom
| | - Bert Brunekreef
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands; Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Klea Katsouyanni
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, University of Athens, Athens, Greece
| | - Gerard Hoek
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
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Lippmann M. Toxicological and epidemiological studies of cardiovascular effects of ambient air fine particulate matter (PM2.5) and its chemical components: coherence and public health implications. Crit Rev Toxicol 2014; 44:299-347. [PMID: 24494826 DOI: 10.3109/10408444.2013.861796] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Recent investigations on PM2.5 constituents' effects in community residents have substantially enhanced our knowledge on the impacts of specific components, especially the HEI-sponsored National Particle Toxicity Component (NPACT) studies at NYU and UW-LRRI that addressed the impact of long-term PM2.5 exposure on cardiovascular disease (CVD) effects. NYU's mouse inhalation studies at five sites showed substantial variations in aortic plaque progression by geographic region that was coherent with the regional variation in annual IHD mortality in the ACS-II cohort, with both the human and mouse responses being primarily attributable to the coal combustion source category. The UW regressions of associations of CVD events and mortality in the WHI cohort, and of CIMT and CAC progression in the MESA cohort, indicated that [Formula: see text] had stronger associations with CVD-related human responses than OC, EC, or Si. The LRRI's mice had CVD-related biomarker responses to [Formula: see text]. NYU also identified components most closely associated with daily hospital admissions (OC, EC, Cu from traffic and Ni and V from residual oil). For daily mortality, they were from coal combustion ([Formula: see text], Se, and As). While the recent NPACT research on PM2.5 components that affect CVD has clearly filled some major knowledge gaps, and helped to define remaining uncertainties, much more knowledge is needed on the effects in other organ systems if we are to identify and characterize the most effective and efficient means for reducing the still considerable adverse health impacts of ambient air PM. More comprehensive speciation data are needed for better definition of human responses.
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Affiliation(s)
- Morton Lippmann
- Department of Environmental Medicine, New York University School of Medicine , Tuxedo, NY , USA
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37
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Cachon BF, Firmin S, Verdin A, Ayi-Fanou L, Billet S, Cazier F, Martin PJ, Aissi F, Courcot D, Sanni A, Shirali P. Proinflammatory effects and oxidative stress within human bronchial epithelial cells exposed to atmospheric particulate matter (PM(2.5) and PM(>2.5)) collected from Cotonou, Benin. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2014; 185:340-51. [PMID: 24333687 DOI: 10.1016/j.envpol.2013.10.026] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 10/15/2013] [Accepted: 10/31/2013] [Indexed: 05/17/2023]
Abstract
After particulate matter (PM) collection in Cotonou (Benin), a complete physicochemical characterization of PM2.5 and PM>2.5 was led. Then, their adverse health effects were evaluated by using in vitro culture of human lung cells. BEAS-2B (bronchial epithelial cells) were intoxicated during short-term exposure at increasing PM concentrations (1.5-96 μg/cm(2)) to determine global cytotoxicity. Hence, cells were exposed to 3 and 12 μg/cm(2) to investigate the potential biological imbalance generated by PM toxicity. Our findings showed the ability of both PM to induce oxidative stress and to cause inflammatory cytokines/chemokines gene expression and secretion. Furthermore, PM were able to induce gene expression of enzymes involved in the xenobiotic metabolism pathway. Strong correlations between gene expression of metabolizing enzymes, proinflammatory responses and cell cycle alteration were found, as well as between proinflammatory responses and cell viability. Stress oxidant parameters were highly correlated with expression and protein secretion of inflammatory mediators.
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Affiliation(s)
- Boris Fresnel Cachon
- Université Lille Nord de France, Lille, France; Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, Maison de la Recherche en Environnement Industriel 2, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140 Dunkerque, France; Laboratoire de Biochimie et Biologie Moléculaire, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, 04 BP 0320, Cotonou, Benin
| | - Stéphane Firmin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, Maison de la Recherche en Environnement Industriel 2, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140 Dunkerque, France; UPSP-EGEAL, Institut Polytechnique LaSalle Beauvais, 60026 Beauvais Cedex, France
| | - Anthony Verdin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, Maison de la Recherche en Environnement Industriel 2, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140 Dunkerque, France.
| | - Lucie Ayi-Fanou
- Laboratoire de Biochimie et Biologie Moléculaire, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, 04 BP 0320, Cotonou, Benin
| | - Sylvain Billet
- Université Lille Nord de France, Lille, France; Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, Maison de la Recherche en Environnement Industriel 2, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140 Dunkerque, France
| | - Fabrice Cazier
- Université Lille Nord de France, Lille, France; Centre Commun de Mesures, Maison de la Recherche en Environnement Industriel 1, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, 59140 Dunkerque, France
| | - Perrine J Martin
- Université Lille Nord de France, Lille, France; Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, Maison de la Recherche en Environnement Industriel 2, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140 Dunkerque, France
| | | | - Dominique Courcot
- Université Lille Nord de France, Lille, France; Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, Maison de la Recherche en Environnement Industriel 2, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140 Dunkerque, France
| | - Ambaliou Sanni
- Laboratoire de Biochimie et Biologie Moléculaire, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, 04 BP 0320, Cotonou, Benin
| | - Pirouz Shirali
- Université Lille Nord de France, Lille, France; Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, Maison de la Recherche en Environnement Industriel 2, Université du Littoral Côte d'Opale, 189A Avenue Maurice Schumann, 59140 Dunkerque, France
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Seasonal variation in the toxicological properties of size-segregated indoor and outdoor air particulate matter. Toxicol In Vitro 2013; 27:1550-61. [DOI: 10.1016/j.tiv.2013.04.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 03/12/2013] [Accepted: 04/03/2013] [Indexed: 11/21/2022]
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Gosens I, Mathijssen LEAM, Bokkers BGH, Muijser H, Cassee FR. Comparative hazard identification of nano- and micro-sized cerium oxide particles based on 28-day inhalation studies in rats. Nanotoxicology 2013; 8:643-53. [PMID: 23768316 DOI: 10.3109/17435390.2013.815814] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
There are many uncertainties regarding the hazard of nanosized particles compared to the bulk material of the parent chemical. Here, the authors assess the comparative hazard of two nanoscale (NM-211 and NM-212) and one microscale (NM-213) cerium oxide materials in 28-day inhalation toxicity studies in rats (according to Organisation for Economic Co-operation and Development technical guidelines). All three materials gave rise to a dose-dependent pulmonary inflammation and lung cell damage but without gross pathological changes immediately after exposure. Following NM-211 and NM-212 exposure, epithelial cell injury was observed in the recovery groups. There was no evidence of systemic inflammation or other haematological changes following exposure of any of the three particle types. The comparative hazard was quantified by application of the benchmark concentration approach. The relative toxicity was explored in terms of three exposure metrics. When exposure levels were expressed as mass concentration, nanosized NM-211 was the most potent material, whereas when expression levels were based on surface area concentration, micro-sized NM-213 material induced the greatest extent of pulmonary inflammation/damage. Particles were equipotent based on particle number concentrations. In conclusion, similar pulmonary toxicity profiles including inflammation are observed for all three materials with little quantitative differences. Systemic effects were virtually absent. There is little evidence for a dominant predicting exposure metric for the observed effects.
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Affiliation(s)
- Ilse Gosens
- National Institute of Public Health and the Environment , Bilthoven , The Netherlands
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40
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Malig BJ, Green S, Basu R, Broadwin R. Coarse particles and respiratory emergency department visits in California. Am J Epidemiol 2013; 178:58-69. [PMID: 23729683 DOI: 10.1093/aje/kws451] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Although respiratory disease has been strongly connected to fine particulate air pollution (particulate matter <2.5 μm in diameter (PM2.5)), evidence has been mixed regarding the effects of coarse particles (particulate matter from 2.5 to 10 μm in diameter), possibly because of the greater spatial heterogeneity of coarse particles. In this study, we evaluated the relationship between coarse particles and respiratory emergency department visits, including common subdiagnoses, from 2005 to 2008 in 35 California counties. A time-stratified case-crossover design was used to help control for time-invariant confounders and seasonal influences, and the study population was limited to those residing within 20 km of pollution monitors to mitigate the influence of spatial heterogeneity. Significant associations between respiratory emergency department visits and coarse particle levels were observed. Asthma visits showed associations (for 2-day lag, excess risk per 10 μg/m³ = 3.3%, 95% confidence interval: 2.0, 4.6) that were robust to adjustment by other common air pollutants (particles <2.5 μm in diameter, ozone, nitrogen dioxide, carbon monoxide, and sulfur dioxide). Pneumonia and acute respiratory infection visits were not associated, although some suggestion of a relationship with chronic obstructive pulmonary disease visits was present. Our results indicate that coarse particle exposure may trigger asthma exacerbations requiring emergency care, and reducing exposures among asthmatic persons may provide benefits.
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Williamson BJ, Rollinson G, Pirrie D. Automated mineralogical analysis of PM10: new parameters for assessing PM toxicity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5570-5577. [PMID: 23627792 DOI: 10.1021/es305025e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This work provides the first automated mineralogical/phase assessment of urban airborne PM10 and a new method for determining particle surface mineralogy (PSM), which is a major control on PM toxicity in the lung. PM10 was analyzed on a TEOM filter (Aug.-Sept. 2006 collection) from the London Air Quality Network Bexley, East London, U.K. A cross-section of the filter was analyzed using a QEMSCAN automated mineralogical analysis system which provided 381,981 points of analysis for 14,525 particles over a period of 9 h 54 min. The method had a detection limit for individual mineral components of 0.05 ppm (by area). Particle shape and mineralogical characteristics were determined for particles in the size ranges PM(10-4), PM(4-2.5), and PM(2.5-0.8). The PM(2.5-0.8) fraction contained 2 orders of magnitude more mineral particles than the PM(10-4) and PM(4-2.5) fractions, however the PM(10-4) fraction forms 94% and 79% of the mineral mass and surface area, respectively. PSM of the PM10 was dominated by gypsum (36%), plagioclase (16%), Na sulphates (8%), and Fe-S-O phases (8%) in the PM(10-2.5), which may be important in explaining the toxicity of the coarse fraction. The wider implications of the study are discussed.
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Affiliation(s)
- Ben J Williamson
- University of Exeter, Camborne School of Mines, Penryn, Cornwall TR10 9EZ, United Kingdom.
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42
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Loxham M, Cooper MJ, Gerlofs-Nijland ME, Cassee FR, Davies DE, Palmer MR, Teagle DAH. Physicochemical characterization of airborne particulate matter at a mainline underground railway station. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:3614-22. [PMID: 23477491 PMCID: PMC3687366 DOI: 10.1021/es304481m] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Underground railway stations are known to have elevated particulate matter (PM) loads compared to ambient air. As these particles are derived from metal-rich sources and transition metals may pose a risk to health by virtue of their ability to catalyze generation of reactive oxygen species (ROS), their potential enrichment in underground environments is a source of concern. Compared to coarse (PM10) and fine (PM2.5) particulate fractions of underground railway airborne PM, little is known about the chemistry of the ultrafine (PM0.1) fraction that may contribute significantly to particulate number and surface area concentrations. This study uses inductively coupled plasma mass spectrometry and ion chromatography to compare the elemental composition of size-fractionated underground PM with woodstove, roadwear generator, and road tunnel PM. Underground PM is notably rich in Fe, accounting for greater than 40% by mass of each fraction, and several other transition metals (Cu, Cr, Mn, and Zn) compared to PM from other sources. Importantly, ultrafine underground PM shows similar metal-rich concentrations as the coarse and fine fractions. Scanning electron microscopy revealed that a component of the coarse fraction of underground PM has a morphology indicative of generation by abrasion, absent for fine and ultrafine particulates, which may be derived from high-temperature processes. Furthermore, underground PM generated ROS in a concentration- and size-dependent manner. This study suggests that the potential health effects of exposure to the ultrafine fraction of underground PM warrant further investigation as a consequence of its greater surface area/volume ratio and high metal content.
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Affiliation(s)
- Matthew Loxham
- The Brooke Laboratory, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, University Hospital Southampton, Tremona Road, Southampton, SO16 6YD, United Kingdom.
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43
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van der Gon HACD, Gerlofs-Nijland ME, Gehrig R, Gustafsson M, Janssen N, Harrison RM, Hulskotte J, Johansson C, Jozwicka M, Keuken M, Krijgsheld K, Ntziachristos L, Riediker M, Cassee FR. The policy relevance of wear emissions from road transport, now and in the future--an international workshop report and consensus statement. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2013; 63:136-49. [PMID: 23472298 DOI: 10.1080/10962247.2012.741055] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
UNLABELLED Road transport emissions are a major contributor to ambient particulate matter concentrations and have been associated with adverse health effects. Therefore, these emissions are targeted through increasingly stringent European emission standards. These policies succeed in reducing exhaust emissions, but do not address "nonexhaust" emissions from brake wear, tire wear, road wear and suspension in air of road dust. Is this a problem? To what extent do nonexhaust emissions contribute to ambient concentrations of PM10 or PM2.5? In the near future, wear emissions may dominate the remaining traffic-related PM10 emissions in Europe, mostly due to the steep decrease in PM exhaust emissions. This underlines the need to determine the relevance of the wear emissions as a contribution to the existing ambient PM concentrations, and the need to assess the health risks related to wear particles, which has not yet received much attention. During a workshop in 2011, available knowledge was reported and evaluated so as to draw conclusions on the relevance of traffic-related wear emissions for air quality policy development. On the basis of available evidence, which is briefly presented in this paper it was concluded that nonexhaust emissions and in particular suspension in air of road dust are major contributors to exceedances at street locations of the PM10 air quality standards in various European cities. Furthermore, wear-related PM emissions that contain high concentrations of metals may (despite their limited contribution to the mass of nonexhaust emissions) cause significant health risks for the population, especially those living near intensely trafficked locations. To quantify the existing health risks, targeted research is required on wear emissions, their dispersion in urban areas, population exposure, and its effects on health. Such information will be crucial for environmental policymakers as an input for discussions on the need to develop control strategies. IMPLICATIONS Road transport particulate matter (PM) emissions are associated with adverse health effects. Stringent policies succeed in reducing the exhaust PM emissions, but do not address "nonexhaust" emissions from brake wear, tire wear, road wear, and suspension in air of road dust. In the near future the nonexhaust emissions will dominate the road transport PM emissions. Based on the limited available evidence, it is argued that dedicated research is required on nonexhaust emissions and dispersion to urban areas from both an air quality and a public health perspective. The implicated message to regulators and policy makers is that road transport emissions continue to be an issue for health and air quality, despite the encouraging rapid decrease of tailpipe exhaust emissions.
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Affiliation(s)
- Hugo A C Denier van der Gon
- Department of Climate, Air and Sustainability, Netherlands Organisation for Applied Scientific Research, TNO, Utrecht, The Netherlands.
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Williams KM, Franzi LM, Last JA. Cell-specific oxidative stress and cytotoxicity after wildfire coarse particulate matter instillation into mouse lung. Toxicol Appl Pharmacol 2013; 266:48-55. [PMID: 23142465 PMCID: PMC3546532 DOI: 10.1016/j.taap.2012.10.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Revised: 10/25/2012] [Accepted: 10/29/2012] [Indexed: 11/15/2022]
Abstract
Our previous work has shown that coarse particulate matter (PM(10-2.5)) from wildfire smoke is more toxic to lung macrophages on an equal dose (by mass) basis than coarse PM isolated from normal ambient air, as evidenced by decreased numbers of macrophages in lung lavage fluid 6 and 24hours after PM instillation into mouse lungs in vivo and by cytotoxicity to a macrophage cell line observed directly in vitro. We hypothesized that pulmonary macrophages from mice instilled with wildfire coarse PM would undergo more cytotoxicity than macrophages from controls, and that there would be an increase in oxidative stress in their lungs. Cytotoxicity was quantified as decreased viable macrophages and increased percentages of dead macrophages in the bronchoalveolar lavage fluid (BALF) of mice instilled with wildfire coarse PM. At 1hour after PM instillation, we observed both decreased numbers of viable macrophages and increased dead macrophage percentages as compared to controls. An increase in free isoprostanes, an indicator of oxidative stress, from control values of 28.1±3.2pg/mL to 83.9±12.2pg/mL was observed a half-hour after PM instillation. By 1hour after PM instillation, isoprostane values had returned to 30.4±7.6pg/mL, not significantly different from control concentrations. Lung sections from mice instilled with wildfire coarse PM showed rapid Clara cell responses, with decreased intracellular staining for the Clara cell secretory protein CCSP 1hour after wildfire PM instillation. In conclusion, very rapid cytotoxicity occurs in pulmonary macrophages and oxidative stress responses are seen 0.5-1hour after wildfire coarse PM instillation. These results define early cellular and biochemical events occurring in vivo and support the hypothesis that oxidative stress-mediated macrophage toxicity plays a key role in the initial response of the mouse lung to wildfire PM exposure.
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Affiliation(s)
- Keisha M Williams
- Pulmonary, Critical Care, and Sleep Medicine, School of Medicine, University of California, Davis, CA, USA
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45
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Bell ML, Ebisu K. Environmental inequality in exposures to airborne particulate matter components in the United States. ENVIRONMENTAL HEALTH PERSPECTIVES 2012; 120:1699-704. [PMID: 22889745 PMCID: PMC3546368 DOI: 10.1289/ehp.1205201] [Citation(s) in RCA: 258] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Accepted: 08/10/2012] [Indexed: 05/17/2023]
Abstract
BACKGROUND Growing evidence indicates that toxicity of fine particulate matter ≤ 2.5 μm in diameter (PM2.5) differs by chemical component. Exposure to components may differ by population. OBJECTIVES We investigated whether exposures to PM2.5 components differ by race/ethnicity, age, and socioeconomic status (SES). METHODS Long-term exposures (2000 through 2006) were estimated for 215 U.S. census tracts for PM2.5 and for 14 PM2.5 components. Population-weighted exposures were combined to generate overall estimated exposures by race/ethnicity, education, poverty status, employment, age, and earnings. We compared population characteristics for tracts with and without PM2.5 component monitors. RESULTS Larger disparities in estimated exposures were observed for components than for PM2.5 total mass. For race/ethnicity, whites generally had the lowest exposures. Non-Hispanic blacks had higher exposures than did whites for 13 of the 14 components. Hispanics generally had the highest exposures (e.g., 152% higher than whites for chlorine, 94% higher for aluminum). Young persons (0-19 years of age) had levels as high as or higher than other ages for all exposures except sulfate. Persons with lower SES had higher estimated exposures, with some exceptions. For example, a 10% increase in the proportion unemployed was associated with a 20.0% increase in vanadium and an 18.3% increase in elemental carbon. Census tracts with monitors had more non-Hispanic blacks, lower education and earnings, and higher unemployment and poverty than did tracts without monitors. CONCLUSIONS Exposures to PM2.5 components differed by race/ethnicity, age, and SES. If some components are more toxic than others, certain populations are likely to suffer higher health burdens. Demographics differed between populations covered and not covered by monitors.
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Affiliation(s)
- Michelle L Bell
- School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511, USA.
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Cheung K, Shafer MM, Schauer JJ, Sioutas C. Diurnal trends in oxidative potential of coarse particulate matter in the Los Angeles Basin and their relation to sources and chemical composition. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:3779-87. [PMID: 22380575 DOI: 10.1021/es204211v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
To investigate the relationship among sources, chemical composition, and redox activity of coarse particulate matter (CPM), three sampling sites were set up up in the Los Angeles Basin to collect ambient coarse particles at four time periods (morning, midday, afternoon, and overnight) in summer 2009 and winter 2010. The generation of reactive oxygen species (ROS) was used to assess the redox activity of these particles. Our results present distinct diurnal profiles of CPM-induced ROS formation in the two seasons, with much higher levels in summer than winter. Higher ROS activity was observed in the midday/afternoon during summertime, while the peak activity occurred in the overnight period in winter. Crustal materials, the major component of CPM, demonstrated very low water-solubility, in contrast with the modestly water-soluble anthropogenic metals, including Ba and Cu. The water-soluble fraction of four elements (V, Pd, Cu, and Rh) with primary anthropogenic origins displayed the highest associations with ROS activity (R(2) > 0.60). Our results show that coarse particles generated by anthropogenic activities, despite their low contribution to CPM mass, are important to the biological activity of CPM, and that a more targeted control strategy may be needed to protect the public health from these toxic CPM sources.
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Affiliation(s)
- Kalam Cheung
- University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, California 90089, United States
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47
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Meister K, Johansson C, Forsberg B. Estimated short-term effects of coarse particles on daily mortality in Stockholm, Sweden. ENVIRONMENTAL HEALTH PERSPECTIVES 2012; 120:431-6. [PMID: 22182596 PMCID: PMC3295353 DOI: 10.1289/ehp.1103995] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Accepted: 12/19/2011] [Indexed: 05/22/2023]
Abstract
BACKGROUND Although serious health effects associated with particulate matter (PM) with aerodynamic diameter ≤ 10 μm (PM₁₀) and ≤ 2.5 μm (PM(2.5); fine fraction) are documented in many studies, the effects of coarse PM (PM(2.5-10)) are still under debate. OBJECTIVE In this study, we estimated the effects of short-term exposure of PM(2.5-10) on daily mortality in Stockholm, Sweden. METHOD We collected data on daily mortality for the years 2000 through 2008. Concentrations of PM₁₀, PM(2.5), ozone, and carbon monoxide were measured simultaneously in central Stockholm. We used additive Poisson regression models to examine the association between daily mortality and PM2.5-10 on the day of death and the day before. Effect estimates were adjusted for other pollutants (two-pollutant models) during different seasons. RESULTS We estimated a 1.68% increase [95% confidence interval (CI): 0.20%, 3.15%] in daily mortality per 10-μg/m³ increase in PM(2.5-10) (single-pollutant model). The association with PM(2.5-10) was stronger for November through May, when road dust is most important (1.69% increase; 95% CI: 0.21%, 3.17%), compared with the rest of the year (1.31% increase; 95% CI: -2.08%, 4.70%), although the difference was not statistically significant. When adjusted for other pollutants, particularly PM(2.5), the effect estimates per 10 μg/m³ for PM(2.5-10) decreased slightly but were still higher than corresponding effect estimates for PM(2.5). CONCLUSIONS Our analysis shows an increase in daily mortality associated with elevated urban background levels of PM(2.5-10). Regulation of PM(2.5-10) should be considered, along with actions to specifically reduce PM(2.5-10) emissions, especially road dust suspension, in cities.
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Affiliation(s)
- Kadri Meister
- Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, Umeå, Sweden.
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Camatini M, Corvaja V, Pezzolato E, Mantecca P, Gualtieri M. PM10-biogenic fraction drives the seasonal variation of proinflammatory response in A549 cells. ENVIRONMENTAL TOXICOLOGY 2012; 27:63-73. [PMID: 20549640 DOI: 10.1002/tox.20611] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 03/02/2010] [Accepted: 03/13/2010] [Indexed: 05/29/2023]
Abstract
PM10 was collected in a Milan urban site, representative of the city air quality, during winter and summer 2006. Mean daily PM10 concentration was 48 μg m(-3) during summer and 148 μg m(-3) during winter. Particles collected on Teflon filters were chemically characterized and the endotoxin content determined by the LAL test. PM10-induced cell toxicity, assessed with MTT and LDH methods, and proinflammatory potential, monitored by IL-6 and IL-8 cytokines release, were investigated on the human alveolar epithelial cell line A549 exposed to increasing doses of PM. Besides untreated cells, exposure to inert carbon particles (2-12 μm) was also used as additional control. Both cell toxicity and proinflammatory potency resulted to be higher for summer PM10 with respect of winter PM10, with IL-6 showing the highest dose-dependent release. The relevance of biogenic components adsorbed onto PM10 in eliciting the proinflammatory mediators release was investigated by inhibition experiments. Polymixin B (Poly) was used to inhibit particle-bind LPS while Toll-like receptor-2 antibody (a-TLR2) to specifically block the activation of this receptor. While cell viability was not modulated in cells coexposed to PM10 and Poly or a-TLR2 or both, inflammatory response did it, with IL-6 release being the most inhibited. In conclusion, Milan PM10-induced seasonal-dependent biological effects, with summer particles showing higher cytotoxic and proinflammatory potential. Cytotoxicity seemed to be unaffected by the PM biogenic components, while inflammation was significantly reduced after the inhibition of some biogenic activated pathways. Besides, the PM-associated biogenic activity does not entirely justify the PM-induced inflammatory effects. © 2010 Wiley Periodicals, Inc. Environ Toxicol 2012.
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Affiliation(s)
- Marina Camatini
- POLARIS Research Center, Department of Environmental Science, University of Milano Bicocca, Milan, Italy
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Chuang HC, Jones TP, Lung SCC, BéruBé KA. Soot-driven reactive oxygen species formation from incense burning. THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 409:4781-4787. [PMID: 21889784 DOI: 10.1016/j.scitotenv.2011.07.041] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Revised: 07/08/2011] [Accepted: 07/17/2011] [Indexed: 05/31/2023]
Abstract
This study investigated the effects of reactive oxygen species (ROS) generated as a function of the physicochemistry of incense particulate matter (IPM), diesel exhaust particles (DEP) and carbon black (CB). Microscopical and elemental analyses were used to determine particle morphology and inorganic compounds. ROS was determined using the reactive dye, Dichlorodihydrofluorescin (DCFH), and the Plasmid Scission Assay (PSA), which determine DNA damage. Two common types of soot were observed within IPM, including nano-soot and micro-soot, whereas DEP and CB mainly consisted of nano-soot. These PM were capable of causing oxidative stress in a dose-dependent manner, especially IPM and DEP. A dose of IPM (36.6-102.3μg/ml) was capable of causing 50% oxidative DNA damage. ROS formation was positively correlated to smaller nano-soot aggregates and bulk metallic compounds, particularly Cu. These observations have important implications for respiratory health given that inflammation has been recognised as an important factor in the development of lung injury/diseases by oxidative stress. This study supports the view that ROS formation by combustion-derived PM is related to PM physicochemistry, and also provides new data for IPM.
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Affiliation(s)
- Hsiao-Chi Chuang
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, Wales, UK
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50
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Mallone S, Stafoggia M, Faustini A, Gobbi GP, Marconi A, Forastiere F. Saharan dust and associations between particulate matter and daily mortality in Rome, Italy. ENVIRONMENTAL HEALTH PERSPECTIVES 2011; 119:1409-14. [PMID: 21970945 DOI: 10.1289/ehp.1003026] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 06/17/2011] [Indexed: 05/22/2023]
Abstract
BACKGROUND Outbreaks of Saharan-Sahel dust over Euro-Mediterranean areas frequently induce exceedances of the Europen Union's 24-hr standard of 50 μg/m3 for particulate matter (PM) with aerodynamic diameter ≤ than 10 μm (PM10). OBJECTIVES We evaluated the effect of Saharan dust on the association between different PM fractions and daily mortality in Rome, Italy. METHODS In a study of 80,423 adult residents who died in Rome between 2001 and 2004, we performed a time-series analysis to explore the effects of PM2.5, PM2.5-10, and PM10 on natural, cardiac, cerebrovascular, and respiratory mortality. We defined Saharan dust days by combining light detection and ranging (LIDAR) observations and analyses from operational models. We tested a Saharan dust-PM interaction term to evaluate the hypothesis that the effects of PM, especially coarse PM (PM2.5-10), on mortality would be enhanced on dust days. RESULTS Interquartile range increases in PM2.5-10 (10.8 μg/m3) and PM10 (19.8 μg/m3) were associated with increased mortality due to natural, cardiac, cerebrovascular, and respiratory causes, with estimated effects ranging from 2.64% to 12.65% [95% confidence interval (CI), 1.18-25.42%] for the association between PM2.5-10 and respiratory mortality (0- to 5-day lag). Associations of PM2.5-10 with cardiac mortality were stronger on Saharan dust days (9.73%; 95% CI, 4.25-15.49%) than on dust-free days (0.86%; 95% CI, -2.47% to 4.31%; p = 0.005). Saharan dust days also modified associations between PM10 and cardiac mortality (9.55% increase; 95% CI, 3.81-15.61%; vs. dust-free days: 2.09%; 95% CI, -0.76% to 5.02%; p = 0.02). CONCLUSIONS We found evidence of effects of PM2.5-10 and PM10 on natural and cause-specific mortality, with stronger estimated effects on cardiac mortality during Saharan dust outbreaks. Toxicological and biological effects of particles from desert sources need to be further investigated and taken into account in air quality standards.
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