251
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Papadogeorgou G, Kioumourtzoglou MA, Braun D, Zanobetti A. Low Levels of Air Pollution and Health: Effect Estimates, Methodological Challenges, and Future Directions. Curr Environ Health Rep 2019; 6:105-115. [PMID: 31090042 PMCID: PMC7161422 DOI: 10.1007/s40572-019-00235-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE OF REVIEW Fine particle (PM2.5) levels have been decreasing in the USA over the past decades. Our goal was to assess the current literature to characterize the association between PM2.5 and adverse health at low exposure levels. RECENT FINDINGS We reviewed 26 papers that examined the association between short- and long-term exposure to PM2.5 and cardio-respiratory morbidity and mortality. There is evidence suggesting that these associations are stronger at lower levels. However, there are certain methodological and interpretational limitations specific to studies of low PM2.5 levels, and further methodological development is warranted. There is strong agreement across studies that air pollution effects on adverse health are still observable at low concentrations, even well below current US standards. These findings suggest that US standards need to be reevaluated, given that further improving air quality has the potential of benefiting public health.
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Affiliation(s)
| | | | - Danielle Braun
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Antonella Zanobetti
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Landmark Center, Suite 404M, P.O. Box 15698, Boston, MA, 02215, USA.
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252
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Wang H, Shen X, Liu J, Wu C, Gao J, Zhang Z, Zhang F, Ding W, Lu Z. The effect of exposure time and concentration of airborne PM 2.5 on lung injury in mice: A transcriptome analysis. Redox Biol 2019; 26:101264. [PMID: 31279222 PMCID: PMC6612658 DOI: 10.1016/j.redox.2019.101264] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/18/2019] [Accepted: 06/30/2019] [Indexed: 12/22/2022] Open
Abstract
The association between airborne fine particulate matter (PM2.5) concentration and the risk of respiratory diseases has been well documented by epidemiological studies. However, the mechanism underlying the harmful effect of PM2.5 has not been fully understood. In this study, we exposed the C57BL/6J mice to airborne PM2.5 for 3 months (mean daily concentration ~50 or ~110 μg/m3, defined as PM2.5-3L or PM2.5-3H) or 6 months (mean daily concentration ~50 μg/m3, defined as PM2.5-6L) through a whole-body exposure system. Histological and biochemical analysis revealed that PM2.5-3H exposure caused more severe lung injury than did PM2.5-3L, and the difference was greater than that of PM2.5-6L vs PM2.5-3L exposure. With RNA-sequencing technique, we found that the lungs exposed with different concentration of PM2.5 have distinct transcriptional profiles. PM2.5-3H exposure caused more differentially expressed genes (DEGs) in lungs than did PM2.5-3L or PM2.5-6L. The DEGs induced by PM2.5-3L or PM2.5-6L exposure were mainly enriched in immune pathways, including Hematopoietic cell lineage and Cytokine-cytokine receptor interaction, while the DEGs induced by PM2.5-3H exposure were mainly enriched in cardiovascular disease pathways, including Hypertrophic cardiomyopathy and Dilated cardiomyopathy. In addition, we found that upregulation of Cd5l and reduction of Hspa1 and peroxiredoxin-4 was associated with PM2.5-induced pulmonary inflammation and oxidative stress. These results may provide new insight into the cytotoxicity mechanism of PM2.5 and help to development of new strategies to attenuate air pollution associated respiratory disease.
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Affiliation(s)
- Hongyun Wang
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiyue Shen
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jingli Liu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunyan Wu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junling Gao
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zezhong Zhang
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fang Zhang
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenjun Ding
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zhongbing Lu
- College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China.
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253
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Lequy E, Siemiatycki J, Leblond S, Meyer C, Zhivin S, Vienneau D, de Hoogh K, Goldberg M, Zins M, Jacquemin B. Long-term exposure to atmospheric metals assessed by mosses and mortality in France. ENVIRONMENT INTERNATIONAL 2019; 129:145-153. [PMID: 31128435 DOI: 10.1016/j.envint.2019.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 04/26/2019] [Accepted: 05/02/2019] [Indexed: 05/22/2023]
Abstract
BACKGROUND Long-term exposure to air pollution affects health, but little is known about exposure to atmospheric metals. Estimating exposure to atmospheric metals across large spatial areas remains challenging. Metal concentrations in mosses could constitute a useful proxy. Here, we linked moss biomonitoring and epidemiological data to investigate the associations between long-term exposure to metals and mortality. METHODS We modelled and mapped 13 atmospheric metals from a 20-year national moss biomonitoring program to derive exposure estimates across France. In the population-based Gazel cohort, we included 11,382 participants from low to intermediate population density areas and assigned modelled metals to their residential addresses. We distinguished between airborne metals that are primarily of natural origin and those primarily of anthropogenic origin. Associations were estimated between exposure to metals and mortality (natural-cause, cardiovascular and respiratory), using Cox models, with confounder adjustment at individual level. FINDINGS Between 1996 and 2017, there were 1313 deaths in the cohort (including 181 cardiovascular and 33 respiratory). Exposure to the anthropogenic metals was associated with an increased risk of natural-cause mortality (hazard ratio of 1.16 [1.08-1.24] per interquartile range of exposure), while metals from natural sources were not. INTERPRETATION Some atmospheric anthropogenic metals may be associated with excess mortality - even in areas with relatively low levels of exposure to air pollution. Consistent with the previous literature, our findings support the use of moss biomonitoring as a tool to assess health effects of air pollution exposure at individual level.
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Affiliation(s)
- Emeline Lequy
- INSERM, U1168, VIMA: Aging and Chronic Diseases, Epidemiological and Public Health Approaches, F-94807 Villejuif, France; University of Versailles St-Quentin-en-Yvelines, UMR-S 1168, F-78180 Montigny-le-Bretonneux, France; INSERM, UMS 011, F-94807 Villejuif, France
| | - Jack Siemiatycki
- CRCHUM (Centre de recherche du CHUM) and Department of Social and Preventive Medicine, Université de Montréal, QC, Canada
| | - Sébastien Leblond
- UMS 2006 PatriNat, National Museum of Natural History, 12 rue Buffon, F-75005 Paris, France
| | - Caroline Meyer
- UMS 2006 PatriNat, National Museum of Natural History, 12 rue Buffon, F-75005 Paris, France
| | | | - Danielle Vienneau
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Kees de Hoogh
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Marcel Goldberg
- INSERM, UMS 011, F-94807 Villejuif, France; Université Paris Descartes, 12, rue de l'école de médecine, F-75006 Paris, France
| | - Marie Zins
- INSERM, UMS 011, F-94807 Villejuif, France; Université Paris Descartes, 12, rue de l'école de médecine, F-75006 Paris, France
| | - Bénédicte Jacquemin
- INSERM, U1168, VIMA: Aging and Chronic Diseases, Epidemiological and Public Health Approaches, F-94807 Villejuif, France; University of Versailles St-Quentin-en-Yvelines, UMR-S 1168, F-78180 Montigny-le-Bretonneux, France; ISGlobal-Institut de Salut Global de Barcelona, 08003 Barcelona, Spain; University Pompeu Fabra (UPF), 08003 Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), 08003 Barcelona, Spain; Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France.
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254
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Miao X, Li W, Niu B, Li J, Sun J, Qin M, Zhou Z. Mitochondrial dysfunction in endothelial cells induced by airborne fine particulate matter (<2.5 μm). J Appl Toxicol 2019; 39:1424-1432. [DOI: 10.1002/jat.3828] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 05/05/2019] [Accepted: 05/05/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaoyan Miao
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Wenke Li
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Bingyu Niu
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Jiangshuai Li
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Jingjie Sun
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Mengnan Qin
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
| | - Zhixiang Zhou
- College of Life Science and BioengineeringBeijing University of Technology Beijing China
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255
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Zierold KM, Hagemeyer AN, Sears CG. Health symptoms among adults living near a coal-burning power plant. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2019; 75:289-296. [PMID: 31267832 DOI: 10.1080/19338244.2019.1633992] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Coal ash is a waste product generated when coal is burned for energy. The purpose of this study was to assess health symptoms in adults living near a coal-burning power plant and compare the symptoms to a non-exposed population. A community-based mixed methods study was conducted with four neighborhoods adjacent to a coal-burning power plant. The comparison population was not exposed to coal ash and did not live near a coal-burning power plant. Adults who lived near the coal-burning power plant were significantly more likely to suffer from respiratory (AOR = 5.27, 95% CI = 2.16-12.0), gingiva (AOR = 2.46, 95% CI = 1.46-4.15), and skin symptoms (AOR = 3.37, 95% CI = 2.09-5.43). Results suggest that health symptoms may develop in people living near coal-burning power plants.
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Affiliation(s)
- K M Zierold
- School of Public Health, Department of Epidemiology and Population Health, University of Louisville, Louisville, Kentucky, USA
| | | | - C G Sears
- Brown University, Providence, Rhode Island, USA
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256
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Luo F, Wei H, Guo H, Li Y, Feng Y, Bian Q, Wang Y. LncRNA MALAT1, an lncRNA acting via the miR-204/ZEB1 pathway, mediates the EMT induced by organic extract of PM2.5 in lung bronchial epithelial cells. Am J Physiol Lung Cell Mol Physiol 2019; 317:L87-L98. [DOI: 10.1152/ajplung.00073.2019] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Extensive cohort studies have explored the hazards of particulate matter with aerodynamic diameter 2.5 μm or smaller (PM2.5) to human respiratory health; however, the molecular mechanisms for PM2.5 carcinogenesis are poorly understood. Long non-coding RNAs (lncRNAs) are involved in various pathophysiological processes. In the present study, we investigated the effect of PM2.5 on the epithelial-mesenchymal transition (EMT) in lung bronchial epithelial cells and the underlying mechanisms mediated by an lncRNA. Organic extracts of PM2.5 from Shanghai were used to treat human bronchial epithelial cell lines (HBE and BEAS-2B). The PM2.5 organic extracts induced the EMT and cell transformation. High levels of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), mediated by NF-κB, were involved in the EMT process. For both cell lines, there was a similar response. In addition, MALAT1 interacted with miR-204 and reversed the inhibitory effect of its target gene, ZEB1, thereby contributing to the EMT and malignant transformation. In sum, these findings show that NF-κB transcriptionally regulates MALAT1, which, by binding with miR-204 and releasing ZEB1, promotes the EMT. These results offer an understanding of the regulatory network of the PM2.5-induced EMT that relates to the health risks associated with PM2.5.
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Affiliation(s)
- Fei Luo
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hongying Wei
- The Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huaqi Guo
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Li
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Feng
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Bian
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Yan Wang
- Faculty of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- The Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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257
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Zhang S, Huo X, Zhang Y, Lu X, Xu C, Xu X. The association of PM 2.5 with airway innate antimicrobial activities of salivary agglutinin and surfactant protein D. CHEMOSPHERE 2019; 226:915-923. [PMID: 31509921 DOI: 10.1016/j.chemosphere.2019.04.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/04/2019] [Accepted: 04/04/2019] [Indexed: 02/05/2023]
Abstract
Fine particulate matter ≤2.5 μm (PM2.5) is a prominent global public health risk factor that can cause respiratory infection by downregulating the amounts of antimicrobial proteins and peptides (AMPs). Both salivary agglutinin (SAG) and surfactant protein D (SPD) are important AMPs in respiratory mucosal fluid, providing protection against airway pathogen invasion and infection by inducing microbial aggregation and enhancing pathogen clearance. However, the relationship between PM2.5 and these AMPs is unclear. To better understand the relationship between PM2.5 and airway innate immune defenses, we review the respiratory antimicrobial activities of SAG and SPD, as well as the adverse effects of PM2.5 on airway innate antimicrobial defense. We speculate there exists a dual effect between PM2.5 and respiratory antimicrobial activity, which means that PM2.5 suppresses respiratory antimicrobial activity through downregulating airway AMPs, while airway AMPs accelerate PM2.5 clearance by inducing PM2.5 microbial aggregation. We propose further research on the relationship between PM2.5 and these AMPs.
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Affiliation(s)
- Shaocheng Zhang
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511486, Guangdong, China
| | - Yuling Zhang
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xueling Lu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Cheng Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, 515041, Guangdong, China; Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, 515041, Guangdong, China.
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258
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Fan R, Ren Q, Zhou T, Shang L, Ma M, Wang B, Xiao C. Determination of endogenous substance change in PM 2.5-induced rat plasma and lung samples by UPLC-MS/MS method to identify potential markers for lung impairment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:22040-22050. [PMID: 31144181 DOI: 10.1007/s11356-019-05351-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 05/01/2019] [Indexed: 06/09/2023]
Abstract
Exposure to fine particulate matter (PM2.5) could induce lung impairment aggravation. Moreover, endogenous substances are known to play a significant role in lung impairment. Therefore, the research objectives was to investigate the influence of PM2.5-induced lung impairment on the levels of the eight endogenous substances, γ-aminobutyric acid (GABA), acetylcholine (ACh), glutamate (Glu), serotonin (5-HT), 5-hydroxyindole-3-acetic acid (5-HIAA), noradrenaline (NE), dopamine (DA), and 3, 4-dihydroxyphenylacetic acid (DOPAC). A sensitive UPLC-MS/MS method for the simultaneous determination of these endogenous substances in rat plasma and lung tissues was developed. The validated method was successfully applied for comparing profiles of analytes in rat plasma and lung tissues. The results indicated that five endogenous substances, namely, GABA, Ach, Glu, DA, and DOPAC, had a significant change in the rats with PM2.5-induced lung impairment.
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Affiliation(s)
- Ronghua Fan
- Department of Health Inspection, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Qingquan Ren
- Department of Health Inspection, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Tao Zhou
- Department of Health Inspection, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Lei Shang
- Department of Key Laboratory of Environmental Pollution and Microecology, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Mingyue Ma
- Department of Toxicology, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Bolun Wang
- Department of Health Inspection, College of Public Health, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China
| | - Chunling Xiao
- Department of Key Laboratory of Environmental Pollution and Microecology, Shenyang Medical College, Shenyang, 11034, Liaoning Province, China.
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259
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Bogner J. [Flu-like disease in summer - what do we know about it?]. MMW Fortschr Med 2019; 161:39-43. [PMID: 31230309 PMCID: PMC7100306 DOI: 10.1007/s15006-019-0657-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Durchsucht man die deutschsprachige medizinische Literatur nach dem Begriff „Sommergrippe“, scheitert man kläglich. Jeder glaubt zu wissen, was damit gemeint ist, doch keiner schreibt darüber. Ist das überhaupt ein seriöses Thema?
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Affiliation(s)
- Johannes Bogner
- Sektion Klinische Infektiologie, Med. Klinik und Poliklinik IV, Klinikum der Univ. München, Pettenkoferstr. 8a, D-80336, München, Deutschland.
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260
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Navarro KM, Kleinman MT, Mackay CE, Reinhardt TE, Balmes JR, Broyles GA, Ottmar RD, Naher LP, Domitrovich JW. Wildland firefighter smoke exposure and risk of lung cancer and cardiovascular disease mortality. ENVIRONMENTAL RESEARCH 2019; 173:462-468. [PMID: 30981117 DOI: 10.1016/j.envres.2019.03.060] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/18/2019] [Accepted: 03/24/2019] [Indexed: 06/09/2023]
Abstract
Wildland firefighters are exposed to wood smoke, which contains hazardous air pollutants, by suppressing thousands of wildfires across the U. S. each year. We estimated the relative risk of lung cancer and cardiovascular disease mortality from existing PM2.5 exposure-response relationships using measured PM4 concentrations from smoke and breathing rates from wildland firefighter field studies across different exposure scenarios. To estimate the relative risk of lung cancer (LC) and cardiovascular disease (CVD) mortality from exposure to PM2.5 from smoke, we used an existing exposure-response (ER) relationship. We estimated the daily dose of wildfire smoke PM2.5 from measured concentrations of PM4, estimated wildland firefighter breathing rates, daily shift duration (hours per day) and frequency of exposure (fire days per year and career duration). Firefighters who worked 49 days per year were exposed to a daily dose of PM4 that ranged from 0.15 mg to 0.74 mg for a 5- and 25-year career, respectively. The daily dose for firefighters working 98 days per year of PM4 ranged from 0.30 mg to 1.49 mg. Across all exposure scenarios (49 and 98 fire days per year) and career durations (5-25 years), we estimated that wildland firefighters were at an increased risk of LC (8 percent to 43 percent) and CVD (16 percent to 30 percent) mortality. This unique approach assessed long term health risks for wildland firefighters and demonstrated that wildland firefighters have an increased risk of lung cancer and cardiovascular disease mortality.
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Affiliation(s)
- Kathleen M Navarro
- USDA Forest Service, Pacific Southwest Region, Fire and Aviation Management, Clovis, CA, USA
| | - Michael T Kleinman
- Center for Occupational and Environmental Health, University of California, Irvine, CA, USA
| | | | | | - John R Balmes
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - George A Broyles
- USDA Forest Service, National Technology and Development Program, Boise, ID, USA
| | - Roger D Ottmar
- USDA Forest Service, Pacific Northwest Research Station, Seattle, WA, USA
| | - Luke P Naher
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, USA
| | - Joseph W Domitrovich
- USDA Forest Service, National Technology and Development Program, Missoula, MT, USA.
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261
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Ye R, Cui L, Peng X, Yu K, Cheng F, Zhu Y, Jia C. Effect and threshold of PM 2.5 on population mortality in a highly polluted area: a study on applicability of standards. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:18876-18885. [PMID: 31065985 DOI: 10.1007/s11356-019-04999-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
For assessing the effect and threshold of PM2.5 on mortality in highly polluted areas and further studying the standard applicability, daily data on meteorological factors, air pollutants, and mortality were obtained in Jinan, China, from 2011 to 2017. A generalized additive model (GAM) and a distributed lag non-linear model (DLNM) were employed to assess the nonlinearity and the hysteresis of associations. We further explored the breakpoints to evaluate the existence of the threshold. The correlation between mortality and PM2.5 was nonlinear. The impact of average PM2.5 on non-accidental mortality (RR = 1.11; 95% CI = 1.06, 1.16), cardiovascular disease (CVD) mortality (RR = 1.17; 95% CI = 1.10, 1.24), and respiratory disease (RD) mortality (RR = 1.17; 95% CI = 1.10, 1.24) reached the highest in the current day (lag 0). The excess risks of PM2.5 at secondary standard level to non-accidental, CVD, and RD mortality are 8.79% (95% CI = 3.84, 13.98), 14.41% (95% CI = 7.79, 21.43), 15.35% (95% CI = 1.76, 30.74), respectively. The saturation points exist in highly polluted areas. Above the saturation points of 247 μg/m3 for non-accidental mortality, 245 μg/m3 for CVD mortality, and 250 μg/m3 for RD mortality, the model of all three relationships presented a harvesting effect. This study underscores the necessity of the ongoing efforts of reducing particulate air pollution and the adjustment of the standards in seriously polluted areas to adapt to regional conditions. At the same time, for highly polluted areas, it is advocated to strengthen personal protection to decrease the saturation point and control the concentration of pollutants as much as possible, which will substantially save more cost that benefits the public.
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Affiliation(s)
- Runze Ye
- Department of Epidemiology, School of Public Health, Shandong University, No. 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China
| | - Liangliang Cui
- Department of Environmental Health, Jinan Municipal Center for Disease Control and Prevention, No. 2 Weiliu Road, Jinan, 250012, People's Republic of China
| | - Xiumiao Peng
- Department of Environmental Health, Jinan Municipal Center for Disease Control and Prevention, No. 2 Weiliu Road, Jinan, 250012, People's Republic of China
| | - Kunkun Yu
- Department of Environmental Health, Jinan Municipal Center for Disease Control and Prevention, No. 2 Weiliu Road, Jinan, 250012, People's Republic of China
| | - Fang Cheng
- Department of Epidemiology, School of Public Health, Shandong University, No. 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China
| | - Yakun Zhu
- Department of Epidemiology, School of Public Health, Shandong University, No. 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China
| | - Chongqi Jia
- Department of Epidemiology, School of Public Health, Shandong University, No. 44 Wenhuaxi Road, Jinan, 250012, People's Republic of China.
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262
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Zeng J, Zhang D, Liu Y, Zhao D, Ou Y, Fang J, Zheng S, Yin J, Chen S, Qiu Y, Qiu Z, Luo S, Zhou H, Lin Y, Ba-Thein W. Compromised Air Quality and Healthcare Safety from Smoking inside Hospitals in Shantou, China. Sci Rep 2019; 9:7955. [PMID: 31138869 PMCID: PMC6538634 DOI: 10.1038/s41598-019-44295-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 05/09/2019] [Indexed: 02/05/2023] Open
Abstract
Achieving smoke-free healthcare facilities remains a great challenge in countries with a high smoking prevalence and weak regulation. Assessment of the impact of environmental tobacco smoke (ETS) and its constituent PM2.5 on the air quality in Chinese hospitals has not been reported. In this study, we conducted air quality surveys by measuring real-time PM2.5 concentrations with Dylos Air Quality Monitors in five tertiary hospitals in Shantou, China during summer (July-August 2016) and winter (November-February 2017). Twenty-eight-day surveys inside the hospitals showed median PM2.5 concentrations above the China Air Quality Standard in elevator lobbies (51.0 μg/m3, IQR 34.5-91.7), restrooms (40.2, 27.1-70.3), and corridors (36.5, 23.0-77.4). Evidence of tobacco smoking was significantly associated with PM2.5 spikes observed in all the survey locations, contributing to the air quality undesirable for health in 49.1% of total survey hours or 29.3% of summer and 75.4% of winter survey hours inside the buildings, and 33.5%, 25.7%, and 6.8% of survey hours in doctor offices, nurse stations, and patient rooms, respectively. In conclusion, smoking inside hospitals induces PM2.5 spikes that significantly compromise the air quality and impose significant health risk to the hospital inhabitants. Reinforcing comprehensive smoking ban with the vested interest of all stakeholders followed by creative disciplinary actions are suggested to ensure healthcare safety.
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Affiliation(s)
- Jun Zeng
- Clinical Research Unit, Shantou University Medical College, Shantou, Guangdong, P.R. China
- Division of Endocrinology, The People's Hospital of China Three Gorges University, The First People's Hospital of Yichang, Yichang, Hubei, P.R. China
| | - Dangui Zhang
- Research Center of Translational Medicine, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Yindu Liu
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Duanlong Zhao
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Yunxuan Ou
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Jiezhuang Fang
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Shimin Zheng
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Jianbin Yin
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Sicheng Chen
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Yiling Qiu
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Zhenbin Qiu
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Siping Luo
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Hui Zhou
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Ying Lin
- Undergraduate Research Training Program (UGRTP), Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - William Ba-Thein
- Clinical Research Unit, Shantou University Medical College, Shantou, Guangdong, P.R. China.
- Department of Microbiology and Immunology, Shantou University Medical College, Shantou, Guangdong, P.R. China.
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Long-term exposure to fine particulate matter and natural-cause and cause-specific mortality in Japan. Environ Epidemiol 2019; 3:e051. [PMID: 33778339 PMCID: PMC7939408 DOI: 10.1097/ee9.0000000000000051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 04/15/2019] [Indexed: 12/03/2022] Open
Abstract
Supplemental Digital Content is available in the text. Background: A number of studies have linked long-term exposure to particulate matter with aerodynamic diameter <2.5 µm (PM2.5) with mortality, but most of these studies were conducted in Europe and North America. Studies in Asian countries had been conducted at relatively high exposures. We evaluated the association of long-term exposure to PM2.5 and natural-cause and cause-specific mortality in Japan, where PM2.5 levels are relatively low compared with levels in other Asian countries. Methods: A cohort of 75,531 participants underwent basic health checkups in Okayama City in 2006 or 2007. We followed the participants until the end of 2016. Average PM2.5 levels from 2006 to 2010 were obtained and assigned to the participants by geographical location. We used the Cox proportional hazard models to estimate hazard ratios for a 5-μg/m3 increase in PM2.5 levels for natural-cause or cause-specific mortality, adjusting for potential confounders. Results: PM2.5 exposure was associated with increased risk of mortality; the hazard ratios were 1.29 (95% confidence interval = 1.18, 1.41) for mortality from natural causes, 1.16 (1.02, 1.32) for cardiorespiratory mortality, and 1.63 (1.13, 2.34) for lung cancer mortality. PM2.5 exposure was more strongly associated with cardiorespiratory mortality from hypertension, pneumonia and influenza, and chronic obstructive pulmonary disease than with ischemic heart disease or cerebrovascular disease. Elderly participants and smokers tended to have higher effect estimates. Conclusion: Long-term exposure to PM2.5 can increase the risk of natural-cause, cardiorespiratory, and lung cancer mortality in Japan.
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264
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Chi R, Chen C, Li H, Pan L, Zhao B, Deng F, Guo X. Different health effects of indoor- and outdoor-originated PM 2.5 on cardiopulmonary function in COPD patients and healthy elderly adults. INDOOR AIR 2019; 29:192-201. [PMID: 30427075 DOI: 10.1111/ina.12521] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 11/02/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
Numerous research has explored the associations of outdoor or indoor fine particulate matter (PM2.5 ) and health effects; however, few studies compared the effects of indoor PM2.5 originated from outdoor (PM2.5,os ) and indoor sources (PM2.5,is ). To assess the associations of PM2.5,os and PM2.5,is with cardiopulmonary function in patients with chronic obstructive pulmonary disease (COPD) and healthy elderly adults, blood pressure (BP) and pulmonary function were repeatedly examined in 43 COPD patients and their 32 healthy spouses in Beijing, China. Iron was used as tracer element to separate PM2.5,os and PM2.5,is . Mixed-effects models were applied to assess the associations of PM2.5,os or PM2.5,is and health effects after controlling for potential confounders. There was a reduction in forced expiratory volume in first second (FEV1 ) in COPD patients associated with PM2.5,is during the heating season. PM2.5,os was positively associated with diastolic BP (DBP) in healthy elderly adults during the heating season. There was a reduction in peak expiratory flow (PEF) in healthy elderly adults associated with PM2.5,os during the non-heating season. Exposure to indoor- and outdoor-originated PM2.5 had different health effects on cardiopulmonary function in different populations. The results provide supporting evidence for improving indoor air quality to promote public health among susceptible population.
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Affiliation(s)
- Rui Chi
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Chen Chen
- Department of Building Science, School of Architecture, Tsinghua University, Beijing, China
| | - Hongyu Li
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Lu Pan
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Bin Zhao
- Department of Building Science, School of Architecture, Tsinghua University, Beijing, China
- Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, Tsinghua University, Beijing, China
| | - Furong Deng
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Xinbiao Guo
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
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265
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Eum KD, Kazemiparkouhi F, Wang B, Manjourides J, Pun V, Pavlu V, Suh H. Long-term NO 2 exposures and cause-specific mortality in American older adults. ENVIRONMENT INTERNATIONAL 2019; 124:10-15. [PMID: 30639903 PMCID: PMC7123874 DOI: 10.1016/j.envint.2018.12.060] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/05/2018] [Accepted: 12/28/2018] [Indexed: 05/18/2023]
Abstract
BACKGROUND The impact of long-term exposure to nitrogen dioxide (NO2) on cause-specific mortality is poorly understood. OBJECTIVE To assess mortality risks associated with long-term NO2 exposure and evaluate confounding of this association. METHODS We examined the association between 12-month moving average NO2 exposure and cause-specific mortality in 14.1 million US Medicare beneficiaries between 2000 and 2008. Associations were examined using age, gender, and race-stratified and state-adjusted Poisson regression models. We assessed the potential for confounding by PM2.5 and behavioral covariates and unmeasured confounding by decomposing NO2 into its spatial and spatio-temporal components. RESULTS We found significant associations between 12-month NO2 exposure and increased mortality from all-causes [risk ratio (RR): 1.052; 95% CI: 1.051, 1.054; per 10 ppb], cardiovascular (CVD) (1.133; 95% CI: 1.130, 1.137) and respiratory disease (1.050; 95% CI: 1.044, 1.056), all cancers (1.021; 95% CI: 1.017, 1.025), ischemic heart disease (IHD) (1.221; 95% CI: 1.217, 1.226), cerebrovascular (CBV) disease (1.092; 95% CI: 1.085, 1.100), and for the first time pneumonia (1.275; 95% CI: 1.263, 1.287). Associations generally remained positive and statistically significant after adjustment for PM2.5 and behavioral factors. CONCLUSIONS Our findings provide additional evidence of the increased risk posed by long-term NO2 exposures on increased mortality from all-causes, CVD, respiratory disease, IHD, CBV, and cancer and provide new evidence of their impact on mortality from pneumonia. Unmeasured confounding of these associations was present, however, demonstrating the need to understand sources of this confounding.
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Affiliation(s)
- Ki-Do Eum
- Department of Civil and Environmental Engineering, Tufts University, Medford, MA, United States.
| | - Fatemeh Kazemiparkouhi
- Department of Civil and Environmental Engineering, Tufts University, Medford, MA, United States
| | - Bingyu Wang
- College of Computer and Information Science, Northeastern University, Boston, MA, United States
| | - Justin Manjourides
- Department of Health Sciences, Bouvé College of Health Sciences, Northeastern University, Boston, MA, United States
| | - Vivian Pun
- Jockey Club School of Public Health and Primary Care, the Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Virgil Pavlu
- College of Computer and Information Science, Northeastern University, Boston, MA, United States
| | - Helen Suh
- Department of Civil and Environmental Engineering, Tufts University, Medford, MA, United States
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266
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Wang Y, Zhang M, Li Z, Yue J, Xu M, Zhang Y, Yung KKL, Li R. Fine particulate matter induces mitochondrial dysfunction and oxidative stress in human SH-SY5Y cells. CHEMOSPHERE 2019; 218:577-588. [PMID: 30502696 DOI: 10.1016/j.chemosphere.2018.11.149] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 10/28/2018] [Accepted: 11/23/2018] [Indexed: 05/06/2023]
Abstract
Exposure to ambient fine particulate matter (PM2.5) is associated with neurodegenerative diseases. Mitochondrion is key to brain degeneration. However, the underlying mechanism of PM2.5-induced brain injury, especially mitochondrial damage, is still unclear. In this study, changes in mitochondrial dynamics, mitochondrial permeability transition pore (mPTP), mitochondrial DNA (mtDNA) and oxidative stress in human SH-SY5Y cells exposed to PM2.5 at different concentrations (0, 25, 100, and 250 μg mL-1) were investigated. The results showed that PM2.5 caused more mitochondrial swell, accompanied by the opening of mPTP and the decrease of ATP levels, mitochondrial membrane potential and mtDNA copy number in SH-SY5Y cells. PM2.5 significantly enhanced the expression of mitochondrial fission/fusion genes (Drp1 and OPA1) and affected the gene expression of CypD, SIRT3, and COX Ⅳ in SH-SY5Y cells. Besides, PM2.5 triggered the increase of cellular ROS, Ca2+ and Aβ-42 levels, inhibition of manganese-superoxide dismutase (SOD2) activities, reduction of GSH levels GSH/GSSG ratio, and elevation of mitochondrial malondialdehyde contents. It suggests that mitochondrial dysfunction and oxidative stress are the potential mechanisms underlying PM2.5-induced brain nerve cell injury, which may be related to neurological diseases. Additionally, our study elucidated that PM2.5 components trigger different cytotoxicity.
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Affiliation(s)
- Ying Wang
- Institute of Environmental Science, Shanxi University, Taiyuan, China
| | - Mei Zhang
- Institute of Environmental Science, Shanxi University, Taiyuan, China
| | - Zhiping Li
- Shanxi Unisdom Testing Technologies Co., Ltd, Taiyuan, China
| | - Jianwei Yue
- Shanxi Unisdom Testing Technologies Co., Ltd, Taiyuan, China
| | - Min Xu
- Shanxi Unisdom Testing Technologies Co., Ltd, Taiyuan, China
| | - Yanhao Zhang
- Department of Biology, State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong SAR, China
| | - Ken Kin Lam Yung
- Institute of Environmental Science, Shanxi University, Taiyuan, China; Department of Biology, State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong SAR, China.
| | - Ruijin Li
- Institute of Environmental Science, Shanxi University, Taiyuan, China.
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267
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Zhang D, Tian Y, Zhang Y, Cao Y, Wang Q, Hu Y. Fine Particulate Air Pollution and Hospital Utilization for Upper Respiratory Tract Infections in Beijing, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16040533. [PMID: 30781785 PMCID: PMC6406703 DOI: 10.3390/ijerph16040533] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 02/03/2019] [Accepted: 02/11/2019] [Indexed: 12/11/2022]
Abstract
Few studies have examined the association between fine particulate matter (PM2.5) and upper respiratory tract infections (URTI) in urban cities. The principal aim of the present study was to evaluate the short-term impact of PM2.5 on the incidence of URTI in Beijing, China. Data on hospital visits due to URTI from 1 October 2010 to 30 September 2012 were obtained from the Beijing Medical Claim Data for Employees, a health insurance database. Daily PM2.5 concentration was acquired from the embassy of the United States of America (US) located in Beijing. A generalized additive Poisson model was used to analyze the effect of PM2.5 on hospital visits for URTI. We found that a 10 μg/m³ increase in PM2.5 concentration was associated with 0.84% (95% CI, 0.05⁻1.64%) increase in hospital admissions for URTI at lag 0⁻3 days, but there were no significant associations with emergency room or outpatient visits. Compared to females, males were more likely to be hospitalized for URTI when the PM2.5 level increased, but other findings did not differ by age group or gender. The study suggests that short-term variations in PM2.5 concentrations have small but detectable impacts on hospital utilization due to URTI in adults.
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Affiliation(s)
- Daitao Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China.
- Institute of Infectious Diseases and Endemic Diseases Control, Beijing Municipal Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China.
| | - Yaohua Tian
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China.
| | - Yi Zhang
- Institute of Infectious Diseases and Endemic Diseases Control, Beijing Municipal Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China.
| | - Yaying Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China.
| | - Quanyi Wang
- Institute of Infectious Diseases and Endemic Diseases Control, Beijing Municipal Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing 100013, China.
| | - Yonghua Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China.
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268
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Fu Y, Lu R, Cui J, Sun H, Yang H, Meng Q, Wu S, Aschner M, Li X, Chen R. Inhibition of ATP citrate lyase (ACLY) protects airway epithelia from PM 2.5-induced epithelial-mesenchymal transition. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 167:309-316. [PMID: 30343145 DOI: 10.1016/j.ecoenv.2018.10.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/03/2018] [Accepted: 10/10/2018] [Indexed: 05/05/2023]
Abstract
Epidemiological studies have associated ambient fine particulate matter (PM2.5) exposure with lung cancer, in which epithelial-mesenchymal transition (EMT) is an initial process. Thus, it is important to identify the key molecule or pathway involved in the PM2.5 induced EMT. Human bronchial epithelial (HBE) cells were exposed to PM2.5 (100 or 500 μg/ml) for 30 passages and analyzed by metabolomics to identify the alteration of metabolites related to PM2.5 exposure. The expression levels of EMT markers were evaluated by qRT-PCR and Western blot assays in HBE cells and murine lung tissues. Reduced epithelial markers, increased mesenchymal markers expression levels and increased capacity of metastasis were observed in PM2.5-exposed HBE cells. Metabolomics analysis suggested upregulation of citrate acid with fold change (FC) of 2.89 or 4.18 in 100 or 500 μg/ml PM2.5 treated HBE cells. For both of the in vitro and in vivo study, the up-regulation of ATP citrate lyase (ACLY) was confirmed following PM2.5 exposure. Importantly, ACLY knockdown in HBE cells reversed EMT, migration and invasion capacities in HBE cells induced by PM2.5. Taken together, our data suggest that inhibition of ACLY demonstrates a protection against PM2.5-induced EMT, providing a concern on the molecular mechanisms of PM2.5-associated pulmonary disorders.
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Affiliation(s)
- You Fu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China; School of Continuing Education, Nanjing Medical University, Nanjing 211166, China
| | - Runze Lu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Jian Cui
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Hao Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Hongbao Yang
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Qingtao Meng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Shenshen Wu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Xiaobo Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| | - Rui Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China; Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China.
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269
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Glick AF, Tomopoulos S, Fierman AH, Elixhauser A, Trasande L. Association Between Outdoor Air Pollution Levels and Inpatient Outcomes in Pediatric Pneumonia Hospitalizations, 2007 to 2008. Acad Pediatr 2019; 19:414-420. [PMID: 30543871 PMCID: PMC6502659 DOI: 10.1016/j.acap.2018.12.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 11/30/2018] [Accepted: 12/09/2018] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Pneumonia is a leading cause of pediatric admissions. Although air pollutants are associated with poor outcomes, few national studies have examined associations between pollutant levels and inpatient pediatric pneumonia outcomes. We examined the relationship between ozone (O3) and fine particulate matter with a diameter ≤2.5 µm (PM2.5) and outcomes related to disease severity. METHODS In this cross-sectional study, we obtained discharge data from the 2007 to 2008 Nationwide Inpatient Sample and pollution data from the Air Quality System. Patients ≤18years with a principal diagnosis of pneumonia were included. Discharge data were linked to O3 and PM2.5 levels (predictors) from the patient's ZIP Code (not publicly available) from day of admission. Outcomes were mortality, intubation, length of stay (LOS), and total costs. We calculated weighted national estimates and performed multivariable analyses adjusting for sociodemographic and hospital factors. RESULTS There were a total of 57,972 (278,871 weighted) subjects. Median PM2.5 level was 9.5 (interquartile range [IQR] 6.8-13.4) µg/m3. Median O3 level was 35.6 (IQR 28.2-45.2) parts per billion. Mortality was 0.1%; 0.75% of patients were intubated. Median LOS was 2 (IQR 2-4) days. Median costs were $3089 (IQR $2023-$5177). Greater levels of PM2.5 and O3 were associated with mortality, longer LOS, and greater costs. Greater O3 levels were associated with increased odds of intubation. CONCLUSIONS Greater levels of O3 and PM2.5 were associated with more severe presentations of pneumonia. Future work should examine these relationships in more recent years and over a longer time period.
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Affiliation(s)
- Alexander F. Glick
- Department of Pediatrics, NYU Langone Health/Bellevue Hospital Center, 462 First Avenue, New York, NY, 10016, USA,Corresponding Author Alexander F. Glick, MD, MS, Bellevue Hospital Center, Department of Pediatrics, Administration Building, Third Floor, 462 First Avenue, New York, NY 10016, Phone: 212-562-2455, Fax: 212-562-5518,
| | - Suzy Tomopoulos
- Department of Pediatrics, NYU Langone Health/Bellevue Hospital Center, 462 First Avenue, New York, NY, 10016, USA
| | - Arthur H. Fierman
- Department of Pediatrics, NYU Langone Health/Bellevue Hospital Center, 462 First Avenue, New York, NY, 10016, USA
| | - Anne Elixhauser
- Formerly from the Agency for Healthcare Research and Quality, 5600 Fishers Lane, Rockville, MD, 20857, USA
| | - Leonardo Trasande
- Department of Pediatrics, NYU Langone Health/Bellevue Hospital Center, 462 First Avenue, New York, NY, 10016, USA,Departments of Environmental Medicine and Population Health, NYU School of Medicine, 403 East 34th Street, Rm 115, New York, NY, 10016, USA,NYU Wagner School of Public Service, New York, NY, 403 East 34th Street, Rm 115, New York, NY, 10016, USA,NYU College of Global Public Health, 403 East 34th Street, Rm 115, New York, NY, 10016, USA
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270
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Wang C, Bi J, Olde Rikkert MGM. Early warning signals for critical transitions in cardiopulmonary health, related to air pollution in an urban Chinese population. ENVIRONMENT INTERNATIONAL 2018; 121:240-249. [PMID: 30219611 DOI: 10.1016/j.envint.2018.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/27/2018] [Accepted: 09/04/2018] [Indexed: 06/08/2023]
Abstract
Respiratory, and cardio-cerebrovascular health-related diseases significantly threaten human health and together with air pollution form a complex pathophysiological system. Other complex biological systems show that increased variance and autocorrelations in time series may act as valid early warning signals for critical transitions. On population level, we determined the likelihood that increased variance and autocorrelation of hospital visit on cardiopulmonary disease preceded critical transitions in population health by human-pollution interactions. We investigated long-term hospital visits from a hospital in Nanjing City, China during 2006-2016 for the most important cardiopulmonary diseases likely to be influenced by air pollution: cerebrovascular accident disease (CVAD), coronary artery disease (CAD), chronic obstructive pulmonary disease (COPD), lung cancer disease (LCD), and the grouped categories of respiratory system disease (RESD) and cardio-cerebrovascular system disease (CCD). The time series of standard deviations (SDs) and autocorrelation at-lag-1 (AR-1) were studied as potential Early-Warning Indicators (EWIs) of transitions in population health. Elevated SDs provided an early warning for critical transitions in visit for LCD and overall CCD and CVAD, for the period of 2012-2013, after which a real transition of increased visit occurred for these disease categories. Statistical testing showed that these SDs were significantly increased (p < 0.1). The long-term air pollution together with intermittent pollution episodes may have triggered critical transitions in population health for cardiopulmonary disease. It is recommended to consider significant increases in variability in time series of relevant system parameters, such as visit, as early warning signs for future transitions in populations' health states.
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Affiliation(s)
- Ce Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
| | - Jun Bi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
| | - Marcel G M Olde Rikkert
- Department of Geriatrics, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands; SPARCS Synergy Programme for Analyzing Resilience and Critical Transitions, Wageningen, the Netherlands.
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271
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Kim HB, Shim JY, Park B, Lee YJ. Long-Term Exposure to Air Pollutants and Cancer Mortality: A Meta-Analysis of Cohort Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E2608. [PMID: 30469439 PMCID: PMC6266691 DOI: 10.3390/ijerph15112608] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/13/2018] [Accepted: 11/15/2018] [Indexed: 01/11/2023]
Abstract
The aim of this study was to examine the relationship between main air pollutants and all cancer mortality by performing a meta-analysis. We searched PubMed, EMBASE (a biomedical and pharmacological bibliographic database of published literature produced by Elsevier), and the reference lists of other reviews until April 2018. A random-effects model was employed to analyze the meta-estimates of each pollutant. A total of 30 cohort studies were included in the final analysis. Overall risk estimates of cancer mortality for 10 µg/m³ per increase of particulate matter (PM)2.5, PM10, and NO₂ were 1.17 (95% confidence interval (CI): 1.11⁻1.24), 1.09 (95% CI: 1.04⁻1.14), and 1.06 (95% CI: 1.02⁻1.10), respectively. With respect to the type of cancer, significant hazardous influences of PM2.5 were noticed for lung cancer mortality and non-lung cancer mortality including liver cancer, colorectal cancer, bladder cancer, and kidney cancer, respectively, while PM10 had harmful effects on mortality from lung cancer, pancreas cancer, and larynx cancer. Our meta-analysis of cohort studies indicates that exposure to the main air pollutants is associated with increased mortality from all cancers.
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Affiliation(s)
- Hong-Bae Kim
- Department of Family Medicine, MyongJi Hospital, Hanyang University Medical Center, 14-55 Hwasu-ro, Deokyang-gu, Goyang, Gyeonggi-do 10475, Korea.
- Department of Medicine, Graduate School of Yonsei University, 50-1 Yonsei-ro, Seodaemoon-gu, Seoul 03722, Korea.
| | - Jae-Yong Shim
- Department of Medicine, Graduate School of Yonsei University, 50-1 Yonsei-ro, Seodaemoon-gu, Seoul 03722, Korea.
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemoon-gu, Seoul 03722, Korea.
| | - Byoungjin Park
- Department of Medicine, Graduate School of Yonsei University, 50-1 Yonsei-ro, Seodaemoon-gu, Seoul 03722, Korea.
- Department of Family Medicine, Yongin Severance Hospital, 225 Gumhak-ro, Cheoin-gu, Yongin, Gyeonggi-do 17046, Korea.
| | - Yong-Jae Lee
- Department of Medicine, Graduate School of Yonsei University, 50-1 Yonsei-ro, Seodaemoon-gu, Seoul 03722, Korea.
- Department of Family Medicine, Gangnam Severance Hospital, 211 UnJu-ro, Seoul 06273, Korea.
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272
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Liang F, Xiao Q, Gu D, Xu M, Tian L, Guo Q, Wu Z, Pan X, Liu Y. Satellite-based short- and long-term exposure to PM 2.5 and adult mortality in urban Beijing, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:492-499. [PMID: 30005261 DOI: 10.1016/j.envpol.2018.06.097] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/26/2018] [Accepted: 06/27/2018] [Indexed: 05/28/2023]
Abstract
Severe and persistent haze accompanied by high concentrations of fine particulate matter (PM2.5) has become a great public health concern in urban China. However, research on the health effects of PM2.5 in China has been hindered by the lack of high-quality exposure estimates. In this study, we assessed the excess mortality associated with both short- and long-term exposure to ambient PM2.5 simultaneously using satellite-derived exposure data at a high spatiotemporal resolution. Adult registries of non-accidental, respiratory and cardiovascular deaths in urban Beijing in 2013 were collected. Exposure levels were estimated from daily satellite-based PM2.5 concentrations at 1 km spatial resolution from 2004 to 2013. Mixed Poisson regression models were fitted to estimate the cause-specific mortality in association with PM2.5 exposures. With the mutual adjustment of short- and long-term exposure of PM2.5, the percent increases associated with every 10 μg/m3 increase in short-term PM2.5 exposure were 0.09% (95% CI: -0.14%, 0.33%; lag 01), 1.02% (95% CI: 0.08%, 1.97%; lag 04) and 0.09% (95% CI: -0.23%, 0.42%; lag 01) for non-accidental, respiratory and cardiovascular mortality, respectively; those attributable to every 10 μg/m3 increase in long-term PM2.5 exposure (9-year moving average) were 16.78% (95% CI: 10.58%, 23.33%), 44.14% (95% CI: 20.73%, 72.10%) and 3.72% (95% CI: -3.75%, 11.77%), respectively. Both associations of short- and long-term exposure with the cause-specific mortality decreased after they were mutually adjusted. Associations between short-term exposure to satellite-based PM2.5 and cause-specific mortality were larger than those estimated using fixed measurements. Satellite-based PM2.5 predictions help to improve the spatiotemporal resolution of exposure assessments and the mutual adjustment model provide better estimation of PM2.5 associated health effects. Effects attributable to long-term exposure of PM2.5 were larger than those of short-term exposure, which should be more concerned for public health.
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Affiliation(s)
- Fengchao Liang
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing 100191, China; Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA; Department of Epidemiology, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
| | - Qingyang Xiao
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA.
| | - Dongfeng Gu
- Department of Epidemiology, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
| | - Meimei Xu
- Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China.
| | - Lin Tian
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing 100191, China.
| | - Qun Guo
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing 100191, China.
| | - Ziting Wu
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing 100191, China.
| | - Xiaochuan Pan
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing 100191, China.
| | - Yang Liu
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA.
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273
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Kastury F, Smith E, Karna RR, Scheckel KG, Juhasz AL. Methodological factors influencing inhalation bioaccessibility of metal(loid)s in PM 2.5 using simulated lung fluid. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 241:930-937. [PMID: 29929159 PMCID: PMC6517839 DOI: 10.1016/j.envpol.2018.05.094] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 05/23/2018] [Accepted: 05/30/2018] [Indexed: 05/24/2023]
Abstract
In this study, methodological factors influencing the dissolution of metal(loid)s in simulated lung fluid (SLF) was assessed in order to develop a standardised method for the assessment of inhalation bioaccessibility in PM2.5. To achieve this aim, the effects of solid to liquid (S/L) ratio (1:100 to 1:5000), agitation (magnetic agitation, occasional shaking, orbital and end-over-end rotation), composition of SLF (artificial lysosomal fluid: ALF; phagolysosomal simulant fluid: PSF) and extraction time (1-120 h) on metal(loid) bioaccessibility were investigated using PM2.5 from three Australian mining/smelting impacted soils and a certified reference material. The results highlighted that SLF composition significantly (p < 0.001) influenced metal(loid) bioaccessibility and that when a S/L ratio of 1:5000 and end-over-end rotation was used, metal(loid) solubility plateaued after approximately 24 h. Additionally, in order to assess the exposure of metal(loid)s via incidental ingestion of surface dust, PM2.5 was subjected to simulated gastro-intestinal tract (GIT) solutions and the results were compared to extraction using SLF. Although As bioaccessibility in SLF (24 h) was significantly lower than in simulated GIT solutions (p < 0.05), Pb bioaccessibility was equal to or significantly higher than that extracted using simulated GIT solutions (p < 0.05).
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Affiliation(s)
- Farzana Kastury
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia.
| | - E Smith
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia
| | - Ranju R Karna
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA; United States Environmental Protection Agency, National Risk Management Research Laboratory, Land and Material Management Division, Research and Technology Evaluation Branch, Cincinnati, OH 45224-1701, USA
| | - Kirk G Scheckel
- United States Environmental Protection Agency, National Risk Management Research Laboratory, Land and Material Management Division, Research and Technology Evaluation Branch, Cincinnati, OH 45224-1701, USA
| | - A L Juhasz
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, SA 5095, Australia
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274
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Determination and Prediction of Respirable Dust and Crystalline-Free Silica in the Taiwanese Foundry Industry. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15102105. [PMID: 30257469 PMCID: PMC6210212 DOI: 10.3390/ijerph15102105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/14/2018] [Accepted: 09/22/2018] [Indexed: 11/17/2022]
Abstract
Background: Respirable crystalline silica (RCS) has been recognized as a human carcinogen; however, the measurement and analysis of RCS in small-scale foundries is rare and difficult. This study aimed to measure respirable dust and RCS levels among 236 foundry workers in Taiwan and used these data to establish predictive models for personal exposure. Methods: Personal sampling of various production processes were measured gravimetrically and analyzed using the X-ray diffraction method. Multiple linear regression was used to establish predictive models. Results: Foundry workers were exposed to geometric means and geometric standard deviations of 0.52 ± 4.0 mg/m3 and 0.027 ± 15 mg/m3 for respirable dust and RCS, respectively. The highest exposure levels were observed among workers in the sand blasting process, with geometric means of 1.6 mg/m3 and 0.099 mg/m3 for respirable dust and RCS, respectively. The predictive exposure model for respirable dust fitted the data well (R2 = 0.75; adjusted R2 = 0.64), and the predictive capacity for RCS was higher (R2 = 0.89; adjusted R2 = 0.84). Conclusions: Foundry workers in the sand blasting process may be exposed to the highest levels of respirable dust and RCS. The developed models can be applied to predict respirable dust and RCS levels adequately in small-scale foundry workers for epidemiological studies.
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275
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Jiang S, Zhou J, Zhang J, Du X, Zeng X, Pan K, Xie Y, Kan H, Sun Q, Cai J, Zhao J. The severity of lung injury and metabolic disorders induced by ambient PM 2.5 exposure is associated with cumulative dose. Inhal Toxicol 2018; 30:239-246. [PMID: 30249144 DOI: 10.1080/08958378.2018.1508258] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Lots of epidemiological and experimental studies have found that ambient fine particulate matter (PM2.5) exposure is associated with the development of cardiopulmonary diseases, obesity and diabetes. This study focused on the effects of cumulative PM2.5 exposure on pulmonary and systemic inflammation and insulin resistance. Thirty-two 6-week-old male Balb/c mice were randomly divided into four groups (FA, PM, WEEK and DAY groups) and were continuously or intermittently exposed to concentrated PM2.5 or filtered air (FA) for four weeks using Shanghai Meteorological and Environmental Animal Exposure System ("Shanghai-METAS"). The levels of IL-6 and TNF-α in serum, bronchoalveolar lavage fluid (BALF), lung tissues and white adipose tissue (WAT) were measured. Meanwhile, the expression of NF-κB and phosphor-NF-κB in lung tissue was detected by Western blot. Glucose tolerance and insulin resistance were also determined at the end of exposure. The results found that the mice in PM group displayed moderate inflammatory cell infiltration in lung, whereas the mice in WEEK and DAY groups displayed slight inflammatory cell infiltration in lung. Compared with the mice in FA group, the mRNA expressions of IL-6 and TNF-α in lung tissue and WAT significantly increased in the mice of PM group. Importantly, IL-6 and TNF-α mRNA expressions in PM group were higher than those in WEEK and DAY groups. The protein expression of phospho-NF-κB in lung tissue showed that PM group showed the activation of NF-κB, which was higher than that in the WEEK and DAY groups. Meanwhile, the mice in PM group showed more severe glucose tolerance and insulin resistance than that in the WEEK and DAY groups. The results suggested that the reduction of PM2.5 cumulative exposure may alleviate pulmonary and adipose inflammation, insulin resistance and glucose tolerance impairment. The results provided a clue that the interruption of ambient PM2.5 exposures by systems such as indoor air purification could be of benefit to people's health.
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Affiliation(s)
- Shuo Jiang
- a Department of Environmental Health School of Public Health and the Key Laboratory of Public Health Safety Ministry of Education , Fudan University , Shanghai , China.,b Shanghai Changning Center for Disease Control and Prevention, Shanghai, China
| | - Ji Zhou
- c Shanghai Key Laboratory of Meteorology and Health , Shanghai , China
| | - Jia Zhang
- a Department of Environmental Health School of Public Health and the Key Laboratory of Public Health Safety Ministry of Education , Fudan University , Shanghai , China
| | - Xihao Du
- a Department of Environmental Health School of Public Health and the Key Laboratory of Public Health Safety Ministry of Education , Fudan University , Shanghai , China
| | - Xuejiao Zeng
- a Department of Environmental Health School of Public Health and the Key Laboratory of Public Health Safety Ministry of Education , Fudan University , Shanghai , China
| | - Kun Pan
- a Department of Environmental Health School of Public Health and the Key Laboratory of Public Health Safety Ministry of Education , Fudan University , Shanghai , China
| | - Yuquan Xie
- d Department of Cardiology , Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine , Shanghai , China
| | - Haidong Kan
- a Department of Environmental Health School of Public Health and the Key Laboratory of Public Health Safety Ministry of Education , Fudan University , Shanghai , China
| | - Qinghua Sun
- e Division of Environmental Health Sciences, College of Public Health , The Ohio State University , Columbus , OH , USA
| | - Jing Cai
- a Department of Environmental Health School of Public Health and the Key Laboratory of Public Health Safety Ministry of Education , Fudan University , Shanghai , China
| | - Jinzhuo Zhao
- a Department of Environmental Health School of Public Health and the Key Laboratory of Public Health Safety Ministry of Education , Fudan University , Shanghai , China.,c Shanghai Key Laboratory of Meteorology and Health , Shanghai , China
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276
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Tibuakuu M, Michos ED, Navas-Acien A, Jones MR. Air Pollution and Cardiovascular Disease: A Focus on Vulnerable Populations Worldwide. CURR EPIDEMIOL REP 2018; 5:370-378. [PMID: 30931239 DOI: 10.1007/s40471-018-0166-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Purpose of review Certain subgroups defined by sociodemographics (race/ethnicity, age, sex and socioeconomic status [SES]), geographic location (rural vs. urban), comorbid conditions and country economic conditions (developed vs. developing) may disproportionately suffer the adverse cardiovascular effects of exposure to ambient air pollution. Yet, previous reviews have had a broad focus on the general population without consideration of these potentially vulnerable populations. Recent findings Over the past decade, a wealth of epidemiologic studies have linked air pollutants including particulate matter, oxides of nitrogen, and carbon monoxide to cardiovascular disease (CVD) risk factors, subclinical CVD, clinical cardiovascular outcomes and cardiovascular mortality in certain susceptible populations. Highest risk for poor CVD outcomes from air pollution exist in racial/ethnic minorities, especially in blacks compared to whites in the U.S, those at low SES, elderly populations, women, those with certain comorbid conditions and developing countries compared to developed countries. However, findings are less consistent for urban compared to rural populations. Summary Vulnerable subgroups including racial/ethnic minorities, women, the elderly, smokers, diabetics and those with prior heart disease had higher risk for adverse cardiovascular outcomes from exposure to air pollution. There is limited data from developing countries where concentrations of air pollutants are more extreme and cardiovascular event rates are higher than that of developed countries. Further epidemiologic studies are needed to understand and address the marked disparities in CVD risk conferred by air pollution globally, particularly among these vulnerable subgroups.
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Affiliation(s)
- Martin Tibuakuu
- St. Luke's Hospital, Department of Medicine, Chesterfield, MO, USA.,Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Erin D Michos
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins School of Medicine, Baltimore, MD, USA.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University School of Public Health, New York, NY, USA
| | - Miranda R Jones
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.,Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
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277
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Wang N, Mengersen K, Kimlin M, Zhou M, Tong S, Fang L, Wang B, Hu W. Lung cancer and particulate pollution: A critical review of spatial and temporal analysis evidence. ENVIRONMENTAL RESEARCH 2018; 164:585-596. [PMID: 29626820 DOI: 10.1016/j.envres.2018.03.034] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 02/14/2018] [Accepted: 03/21/2018] [Indexed: 05/02/2023]
Abstract
BACKGROUND Particulate matter (PM) has been recognized as one of the key risk factors of lung cancer. However, spatial and temporal patterns of this association remain unclear. Spatiotemporal analyses incorporate the spatial and temporal structure of the data within random effects models, generating more accurate evaluations of PM-lung cancer associations at a scale that can better inform lung cancer prevention programs. METHODS We conducted a critical review of spatial and temporal analyses of PM and lung cancer. The databases of PubMed, Web of Science and Scopus were searched for potential articles published until September 30, 2017. We included studies that applied spatial and temporal analyses to evaluate the associations of PM2.5 (inhalable particles with diameters that are 2.5 µm and smaller) and PM10 (inhalable particles with diameters that are 10 µm and smaller) with lung cancer. RESULTS We identified 17 articles eligible for the review. Of these, 11 focused on PM2.5, five on PM10, and one on both. These studies suggested a significant positive association between PM2.5 exposure and the risk of lung cancer. Relative risks of lung cancer mortality ranged from 1.08 (95% confidence interval (CI): 1.07-1.09) to 1.60 (95%CI: 1.09-2.33) for 10 µg/m3 increase in PM2.5 exposure. The association between PM10 and lung cancer had been less well researched and the results were not consistent. In terms of the analysis methods, 16 papers undertook spatial analysis and one paper employed temporal analysis. No paper included spatial and temporal analyses simultaneously and considered spatiotemporal uncertainty into model predictions. Among the 16 papers with spatial analyses, thirteen studies presented maps, while only five and 11 studies utilized spatial exploration and modeling methods, respectively. CONCLUSIONS Advanced spatial and temporal epidemiological methods were seldom applied to PM-lung cancer associations. Further research is urgently needed to develop and employ robust and comprehensive spatiotemporal analysis methods for the evaluation of PM-lung cancer associations and the support of lung cancer prevention strategies.
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Affiliation(s)
- Ning Wang
- School of Public Health and Social Work, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Kerrie Mengersen
- School of Mathematical Sciences, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Michael Kimlin
- Health Research Institute, University of the Sunshine Coast, Sippy Downs, Queensland, Australia; Cancer Council Queensland, Brisbane, Queensland, Australia
| | - Maigeng Zhou
- National Center for Chronic Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shilu Tong
- School of Public Health and Social Work, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia; Shanghai Children's Medical Centre, Shanghai Jiao Tong University, Shanghai, China; School of Public Health, Anhui Medical University, Hefei, China
| | - Liwen Fang
- National Center for Chronic Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Baohua Wang
- National Center for Chronic Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wenbiao Hu
- School of Public Health and Social Work, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
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278
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Yang Z, Shen J, Gao Z. Ventilation and Air Quality in Student Dormitories in China: A Case Study during Summer in Nanjing. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E1328. [PMID: 29941805 PMCID: PMC6068894 DOI: 10.3390/ijerph15071328] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 06/14/2018] [Accepted: 06/21/2018] [Indexed: 11/17/2022]
Abstract
The Air quality in student dormitories can have a major impact on the health of millions of students in China. This study aims to investigate the ventilation and air quality in student dormitories. Questionnaire survey was conducted in eight dormitory buildings and field measurements were conducted in one dormitory during the summer in Nanjing. The survey result reveals that most students thought the indoor and outdoor air quality was neutral and the correlation between indoor and outdoor perceived air quality is statistically significant. There are few indoor PM2.5 and ozone sources in dormitories and natural ventilation is the most common form of ventilation. However, there is no statistically significant correlation between window opening behaviors and the perceptions of indoor and outdoor air quality. The field measurement result shows the measured I/O ratios of PM2.5 and ozone over 37 days are in the range of 0.42⁻0.79 and 0.21⁻1.00, respectively. The I/O ratios for PM2.5 and ozone are 0.49 ± 0.05 and 0.26 ± 0.05 in the case of the window being closed, and the I/O ratios for PM2.5 and ozone are 0.65 ± 0.08 and 0.50 ± 0.15 in the case of the window being open. The outdoor and indoor ozone concentrations show pronounced diurnal periodic variations, while the PM2.5 concentrations do not. Finally, recommended open/close window strategies are discussed to reduce indoor pollutant levels. Understanding the indoor/outdoor PM2.5 and ozone concentrations in different window patterns can be a guidance to preventing high indoor PM2.5 and ozone exposure in student dormitories.
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Affiliation(s)
- Zhe Yang
- School of Architecture and Urban Planning, Nanjing University, 22 Hankou Road, Nanjing 210093, China.
| | - Jialei Shen
- School of Architecture and Urban Planning, Nanjing University, 22 Hankou Road, Nanjing 210093, China.
| | - Zhi Gao
- School of Architecture and Urban Planning, Nanjing University, 22 Hankou Road, Nanjing 210093, China.
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279
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Impact of long-term temporal trends in fine particulate matter (PM2.5) on associations of annual PM2.5 exposure and mortality. Environ Epidemiol 2018; 2. [PMID: 34622119 PMCID: PMC8493859 DOI: 10.1097/ee9.0000000000000009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Decreasing ambient fine particulate matter (PM2.5) concentrations over time together with increasing life expectancy raise concerns about temporal confounding of associations between PM2.5 and mortality. To address this issue, we examined PM2.5-associated mortality risk ratios (MRRs) estimated for approximately 20,000,000 US Medicare beneficiaries, who lived within six miles of an Environmental Protection Agency air quality monitoring site, between December 2000 and December 2012. We assessed temporal confounding by examining whether PM2.5-associated MRRs vary by study period length. We then evaluated three approaches to control for temporal confounding: (1) assessing exposures using the residual of PM2.5 regressed on time; (2) adding a penalized spline term for time to the health model; and (3) including a term that describes temporal variability in PM2.5 into the health model, with this term estimated using decomposition approaches. We found a 10 μg/m3 increase in PM2.5 exposure to be associated with a 1.20 times (95% confidence interval [CI] = 1.20, 1.21) higher risk of mortality across the 13-year study period, with the magnitude of the association decreasing with shorter study periods. MRRs remained statistically significant but were attenuated when models adjusted for long-term time trends in PM2.5. The residual-based, time-adjusted MRR equaled 1.12 (95% CI = 1.11, 1.12) per 10 μg/m3 for the 13-year study period and did not change when shorter study periods were examined. Spline- and decomposition-based approaches produced similar but less-stable MRRs. Our findings suggest that epidemiological studies of long-term PM2.5 can be confounded by long-term time trends, and this confounding can be controlled using the residuals of PM2.5 regressed on time.
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280
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Huang J, Pan X, Guo X, Li G. Impacts of air pollution wave on years of life lost: A crucial way to communicate the health risks of air pollution to the public. ENVIRONMENT INTERNATIONAL 2018; 113:42-49. [PMID: 29421406 DOI: 10.1016/j.envint.2018.01.022] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/07/2018] [Accepted: 01/22/2018] [Indexed: 06/08/2023]
Abstract
Limited studies have explored the impacts of exposure to sustained high levels of air pollution (air pollution wave) on mortality. Given that the frequency, intensity and duration of air pollution wave has been increasing in highly polluted regions recently, understanding the impacts of air pollution wave is crucial. In this study, air pollution wave was defined as 2 or more consecutive days with air pollution index (API) > 100. The impacts of air pollution wave on years of life lost (YLL) due to non-accidental, cardiovascular and respiratory deaths were evaluated by considering both consecutive days with high levels of air pollution and daily air pollution levels in Tianjin, China, from 2006 to 2011. The results showed the durational effect of consecutive days with high levels of air pollution was substantial in addition to the effect of daily air pollution. For instance, the durational effect was related to an increase in YLL of 116.6 (95% CI: 4.8, 228.5) years from non-accidental deaths when the air pollution wave was sustained for 4 days, while the corresponding daily air pollution's effect was 121.2 (95% CI: 55.2, 187.1) years. A better interpretation of the health risks of air pollution wave is crucial for air pollution control policy making and public health interventions.
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Affiliation(s)
- Jing Huang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing, China
| | - Xiaochuan Pan
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing, China
| | - Xinbiao Guo
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing, China
| | - Guoxing Li
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing, China.
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281
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Du X, Jiang S, Zeng X, Zhang J, Pan K, Zhou J, Xie Y, Kan H, Song W, Sun Q, Zhao J. Air pollution is associated with the development of atherosclerosis via the cooperation of CD36 and NLRP3 inflammasome in ApoE -/- mice. Toxicol Lett 2018; 290:123-132. [PMID: 29571893 DOI: 10.1016/j.toxlet.2018.03.022] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/13/2018] [Accepted: 03/19/2018] [Indexed: 12/22/2022]
Abstract
Previous studies have indicated that the main air pollutant fine particulate matter (≤2.5 μm; PM2.5) exposure is associated with the development of atherosclerosis. Although the mechanism is not fully illustrated, the inflammatory responses play an important role. The present study aimed to explore whether PM2.5-exacerbated atherosclerosis was mediated by the cooperation of cluster of differentiation 36 (CD36) and nucleotide-binding oligomerization domain-like receptor protein (NLRP3) inflammasome in apolipoprotein E-/- (ApoE-/-) mice. Thirty-two ApoE-/- mice were randomly divided into two groups. One group was fed with high fat chow (HFC) for 10 weeks to establish atherosclerotic model, and the other was fed with normal chow (NC). From week 11, the mice were exposed to concentrated PM2.5 (PM) or filtered air (FA) using Shanghai Meteorological and Environmental Animal Exposure System for 16 weeks. In both NC and HFC groups, PM2.5 exposure induced the formation of atherosclerosis plaque. Similarly, PM mice appeared higher lipid content in the aortic root than that in the FA mice. Compared with the FA mice, PM mice appeared a decrease in high density lipoprotein-cholesterol (HDL-C) and apolipoprotein A1 along with an increase in apolipoprotein B, low density lipoprotein-cholesterol (LDL-C) and oxidized low-density lipoprotein (ox-LDL). Moreover, PM2.5 exposure induced increase of CD36 in serum and aorta. In both NC and HFC groups, NLRP3 inflammasome activation-related indicators were activated or increased in the aorta of the PM mice when compared with the FA mice. The cooperation of CD36 and NLRP3 inflammasome activation may be the potential mechanisms linkixposed to concentrated PM2.5 (PM) or filtered air (FA) using Shanghai Meteorological and Environmental Animal Exposure System for 16 weeks. In both NC and HFC groups, PM2.5 exposure induced the formation of atherosclerosis plaque. Similarly, PM mice appeared higher lipid content in the aortic root than that in the FA mice. Compared with the FA mice, PM mice appeared a decrease in high density lipoprotein-cholesterol (HDL-C) and apolipoprotein A1 along with an increase in apolipoprotein B, low density lipoprotein-cholesterol (LDL-C) and oxidized low-density lipoprotein (ox-LDL). Moreover, PM2.5 exposure induced increase of CD36 in serum and aorta. In both NC and HFC groups, NLRP3 inflammasome activation-related indicators were activated or increased in the aorta of the PM mice when compared with the FA mice. The cooperation of CD36 and NLRP3 inflammasome activation may be the potential mechanisms linking air pollution and HFC-induced atherosclerosis even in the mice with NC intake.
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Affiliation(s)
- Xihao Du
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Shuo Jiang
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Xuejiao Zeng
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Jia Zhang
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Kun Pan
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Ji Zhou
- Shanghai Key Laboratory of Meteorology and Health, Shanghai, China
| | - Yuquan Xie
- Department of Cardiology, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200092, China
| | - Haidong Kan
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Weimin Song
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Qinghua Sun
- Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH, USA
| | - Jinzhuo Zhao
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China; Shanghai Key Laboratory of Meteorology and Health, Shanghai, China.
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Li R, Zhang M, Wang Y, Yung KKL, Su R, Li Z, Zhao L, Dong C, Cai Z. Effects of sub-chronic exposure to atmospheric PM 2.5 on fibrosis, inflammation, endoplasmic reticulum stress and apoptosis in the livers of rats. Toxicol Res (Camb) 2018; 7:271-282. [PMID: 30090581 PMCID: PMC6062260 DOI: 10.1039/c7tx00262a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 01/02/2018] [Indexed: 01/01/2023] Open
Abstract
Epidemiological studies have revealed that exposure to PM2.5 is linked to liver cancer. However, the hepatic toxicity and relevant molecular mechanisms of PM2.5 have not yet been fully described. Herein, we report on our investigation of the fibrosis, inflammation, endoplasmic reticulum (ER) stress and apoptosis in the livers of rats, caused by exposure to PM2.5 during summer and winter in Taiyuan, China. Male SD rats were sub-chronically exposed to PM2.5 (in summer: 0.2, 0.6, 1.5 mg per kg of b.w.; in winter: 0.3, 1.5, 2.7 mg per kg of b.w.) via intratracheal instillation once every 3 days for 60 days. The results showed that exposure to high dosages of PM2.5 caused the following: (1) hepatic histopathological changes and liver function decline through elevating the activities of AST, ALT, CYP450 and GST; (2) triggered liver fibrosis, in which TGF-β1, Col I, Col III, and MMP13 mRNA and protein expression were significantly upregulated, and enhanced inflammation with the overexpression of TNF-α, IL-6 and HO-1 versus the control; (3) induced liver ER stress and cell apoptosis via activating the GRP78/ATF6/CHOP/TRB3/caspase 12 pathway. The data also indicated that the liver injury induced by winter PM2.5 in Taiyuan was more serious compared to that induced by summer PM2.5. This work provides new insight into the mechanisms of PM2.5-induced liver injury, and aids the understanding of the underlying mechanisms by which PM2.5 might affect liver diseases.
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Affiliation(s)
- Ruijin Li
- Institute of Environmental Science , Institute of Biotechnology Shanxi University , Taiyuan , PR China . ; ; Tel: (+86)-351-7011011
| | - Mei Zhang
- Institute of Environmental Science , Institute of Biotechnology Shanxi University , Taiyuan , PR China . ; ; Tel: (+86)-351-7011011
| | - Ying Wang
- Institute of Environmental Science , Institute of Biotechnology Shanxi University , Taiyuan , PR China . ; ; Tel: (+86)-351-7011011
| | - Ken Kin Lam Yung
- Institute of Environmental Science , Institute of Biotechnology Shanxi University , Taiyuan , PR China . ; ; Tel: (+86)-351-7011011
- State Key Laboratory of Environmental and Biological Analysis , Department of Biology , Hong Kong Baptist University , Hong Kong SAR , China . ; ; Tel: (+852)-34117070
| | - Ruijun Su
- Institute of Environmental Science , Institute of Biotechnology Shanxi University , Taiyuan , PR China . ; ; Tel: (+86)-351-7011011
| | - Zhuoyu Li
- Institute of Environmental Science , Institute of Biotechnology Shanxi University , Taiyuan , PR China . ; ; Tel: (+86)-351-7011011
| | - Liping Zhao
- Shanxi Provincial People's Hospital , Taiyuan , PR China
| | - Chuan Dong
- Institute of Environmental Science , Institute of Biotechnology Shanxi University , Taiyuan , PR China . ; ; Tel: (+86)-351-7011011
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis , Department of Biology , Hong Kong Baptist University , Hong Kong SAR , China . ; ; Tel: (+852)-34117070
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283
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Lin CI, Tsai CH, Sun YL, Hsieh WY, Lin YC, Chen CY, Lin CS. Instillation of particulate matter 2.5 induced acute lung injury and attenuated the injury recovery in ACE2 knockout mice. Int J Biol Sci 2018; 14:253-265. [PMID: 29559844 PMCID: PMC5859472 DOI: 10.7150/ijbs.23489] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/09/2018] [Indexed: 01/22/2023] Open
Abstract
Inhaled particulate matter 2.5 (PM2.5) can cause lung injury by inducing serious inflammation in lung tissue. Renin-angiotensin system (RAS) is involved in the pathogenesis of inflammatory lung diseases and regulates inflammatory response. Angiotensin-converting enzyme II (ACE2), which is produced through the angiotensin-converting enzyme (ACE)/angiotensin II (Ang II) axis, protects against lung disease. However, few studies have focused on the relationships between PM2.5 and ACE2. Therefore, we aimed to explore the role of ACE2 in PM2.5-induced acute lung injury (ALI). An animal model of PM2.5-induced ALI was established with wild type (C57BL/6, WT) and ACE2 gene knockout (ACE2 KO) mice. The mice were exposed to PM2.5 through intratracheal instillation once a day for 3 days (6.25 mg/kg/day) and then sacrificed at 2 days and 5 days after PM2.5 instillation. The results show that resting respiratory rate (RRR), levels of inflammatory cytokines, ACE and MMPs in the lungs of WT and ACE2 KO mice were significantly increased at 2 days postinstillation. At 5 days postinstillation, the PM2.5-induced ALI significantly recovered in the WT mice, but only partially recovered in the ACE2 KO mice. The results hint that PM2.5 could induce severe ALI through pulmonary inflammation, and the repair after acute PM2.5 postinstillation could be attenuated in the absence of ACE2. Additionally, our results show that PM2.5-induced ALI is associated with signaling p-ERK1/2 and p-STAT3 pathways and ACE2 knockdown could increase pulmonary p-STAT3 and p-ERK1/2 levels in the PM2.5-induced ALI.
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Affiliation(s)
- Chung-I Lin
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.,Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan
| | - Chin-Hung Tsai
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine, Tungs' Taichung Metro Harbor Hospital, Taichung, Taiwan
| | - Yu-Ling Sun
- Aquatic Technology Laboratories, Agricultural Technology Research Institute, Hsinchu, Taiwan
| | - Wen-Yeh Hsieh
- Division of Chest Medicine, Department of Internal Medicine, Hsinchu Mackay Memorial Hospital, Hsinchu, Taiwan.,Department of Senior Citizen Service Management, Minghsin University of Science and Technology, Hsinchu, Taiwan
| | - Yi-Chang Lin
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
| | - Cheng-Yi Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.,Division of Nephrology, Department of Internal Medicine, Hsinchu Mackay Memorial Hospital, Hsinchu, Taiwan
| | - Chih-Sheng Lin
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
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284
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Ma JH, Song SH, Guo M, Zhou J, Liu F, Peng L, Fu ZR. Long-term exposure to PM2.5 lowers influenza virus resistance via down-regulating pulmonary macrophage Kdm6a and mediates histones modification in IL-6 and IFN-β promoter regions. Biochem Biophys Res Commun 2017; 493:1122-1128. [PMID: 28887033 DOI: 10.1016/j.bbrc.2017.09.013] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 09/04/2017] [Indexed: 11/30/2022]
Abstract
Atmospheric particulates, especially PM2.5, not only damage the respiratory system, but also play important roles in pulmonary immunity. China is influenced by atmospheric diffusion conditions, industrial manufacturers, and heating and discharging. PM2.5 levels in the air rise substantially in the winter, which is also a period of flu high-incidence. Although an epidemiological link exists between PM2.5 and flu, we do not understand how long-term PM2.5 inhalation affects pulmonary immunity and the influenza virus response. Our study has prepared an in vivo PM2.5 mouse pharyngeal wall drop-in model and has found that PM2.5 exposure leads to mouse inflammatory injuries and furthers influenza A infection. Our results suggest that short-term exposure to PM2.5 significantly enhances the survival rate of influenza A-contaminated mice, while long-term PM2.5 inhalation lowers the capacity of pulmonary macrophages to secrete IL-6 and IFN-β. A disorder in the pulmonary innate defense system results in increased death rates following influenza infection. On a macromolecular level, this mechamism involves Kdm6a down-regulation after long-term exposure to PM 2.5 and a resultant increase in H3K4 and H3K9 methylation in IL-6 and IFN-β promoter regions. In summary, PM2.5 causes injuries of lung tissue cells and downregulates immune defense mechanisms in the lung.
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Affiliation(s)
- Jing-Hui Ma
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, People's Republic of China
| | - Shao-Hua Song
- Organ Transplantation Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, People's Republic of China
| | - Meng Guo
- Organ Transplantation Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, People's Republic of China
| | - Ji Zhou
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, People's Republic of China
| | - Fang Liu
- Organ Transplantation Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, People's Republic of China
| | - Li Peng
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, People's Republic of China.
| | - Zhi-Ren Fu
- Organ Transplantation Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, People's Republic of China.
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