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Osho B, Elahifard M, Wang X, Abbasi B, Chow JC, Watson JG, Arnott WP, Reed WR, Parks D. Evaluation of PVC and PTFE filters for direct-on-filter crystalline silica quantification by FTIR. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2024:1-12. [PMID: 38958555 DOI: 10.1080/15459624.2024.2357080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Direct-on-Filter (DoF) analysis of respirable crystalline silica (RCS) by Fourier Transform Infrared (FTIR) spectroscopy is a useful tool for assessing exposure risks. With the RCS exposure limits becoming lower, it is important to characterize and reduce measurement uncertainties. This study systematically evaluated two filter types (i.e., polyvinyl chloride [PVC] and polytetrafluoroethylene [PTFE]) for RCS measurements by DoF FTIR spectroscopy, including the filter-to-filter and day-to-day variability of blank filter FTIR reference spectra, particle deposition patterns, filtration efficiencies, and pressure drops. For PVC filters sampled at a flow rate of 2.5 L/min for 8 h, the RCS limit of detection (LOD) was 7.4 μg/m3 when a designated laboratory reference filter was used to correct the absorption by the filter media. When the spectrum of the pre-sample filter (blank filter before dust sampling) was used for correction, the LOD could be up to 5.9 μg/m3. The PVC absorption increased linearly with reference filter mass, providing a means to correct the absorption differences between the pre-sample and reference filters. For PTFE, the LODs were 12 and 1.2 μg/m3 when a designated laboratory blank or the pre-sample filter spectrum was used for blank correction, respectively, indicating that using the pre-sample blank spectrum will reduce RCS quantification uncertainty. Both filter types exhibited a consistent radially symmetric deposition pattern when particles were collected using 3-piece cassettes, indicating that RCS can be quantified from a single measurement at the filter center. The most penetrating aerodynamic diameters were around 0.1 µm with filtration efficiencies ≥ 98.8% across the measured particle size range with low-pressure drops (0.2-0.3 kPa) at a flow rate of 2.5 L/min. This study concludes that either the PVC or the PTFE filters are suitable for RCS analysis by DoF FTIR, but proper methods are needed to account for the variability of blank absorption among different filters.
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Affiliation(s)
- Bankole Osho
- Division of Atmospheric Sciences, Desert Research Institute, Reno, Nevada
- University of Nevada, Reno, Nevada
| | | | - Xiaoliang Wang
- Division of Atmospheric Sciences, Desert Research Institute, Reno, Nevada
| | | | - Judith C Chow
- Division of Atmospheric Sciences, Desert Research Institute, Reno, Nevada
| | - John G Watson
- Division of Atmospheric Sciences, Desert Research Institute, Reno, Nevada
| | | | - Wm Randolph Reed
- National Institute for Occupational Safety and Health, Pittsburgh, Pennsylvania
| | - David Parks
- Spokane Mining Research Division, National Institute for Occupational Safety and Health, Spokane, Washington
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Murgia N, Akgun M, Blanc PD, Costa JT, Moitra S, Muñoz X, Toren K, Ferreira AJ. Issue 3-The occupational burden of respiratory diseases, an update. Pulmonology 2024:S2531-0437(24)00045-X. [PMID: 38704309 DOI: 10.1016/j.pulmoe.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 05/06/2024] Open
Abstract
INTRODUCTION AND AIMS Workplace exposures are widely known to cause specific occupational diseases such as silicosis and asbestosis, but they also can contribute substantially to causation of common respiratory diseases. In 2019, the American Thoracic Society (ATS) and the European Respiratory Society (ERS) published a joint statement on the occupational burden of respiratory diseases. Our aim on this narrative review is to summarise the most recent evidence published after the ATS/ERS statement as well as to provide information on traditional occupational lung diseases that can be useful for clinicians and researchers. RESULTS Newer publications confirm the findings of the ATS/ERS statement on the role of workplace exposure in contributing to the aetiology of the respiratory diseases considered in this review (asthma, COPD, chronic bronchitis, idiopathic pulmonary fibrosis, hypersensitivity pneumonitis, infectious pneumonia). Except for COPD, chronic bronchitis and infectious pneumonia, the number of publications in the last 5 years for the other diseases is limited. For traditional occupational lung diseases such as silicosis and asbestosis, there are old as well as novel sources of exposure and their burden continues to be relevant, especially in developing countries. CONCLUSIONS Occupational exposure remains an important risk factor for airways and interstitial lung diseases, causing occupational lung diseases and contributing substantially in the aetiology of common respiratory diseases. This information is critical for public health professionals formulating effective preventive strategies but also for clinicians in patient care. Effective action requires shared knowledge among clinicians, researchers, public health professionals, and policy makers.
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Affiliation(s)
- N Murgia
- Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy.
| | - M Akgun
- Department of Chest Diseases, School of Medicine, Ağrı İbrahim Çeçen University, Ağrı, Turkey
| | - P D Blanc
- Division of Occupational, Environmental, and Climate Medicine, Department of Medicine, University of California San Francisco, California, USA
| | - J T Costa
- Faculdade de Medicina da Universidade do Porto, Centro Hospitalar Universitário de São João (CHUSJ), Porto, Portugal
| | - S Moitra
- Alberta Respiratory Centre and Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - X Muñoz
- Servicio de Neumología, Hospital Vall d'Hebron, Barcelona, Spain
| | - K Toren
- Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - A J Ferreira
- Faculty of Medicine, University of Coimbra. Coimbra, Portugal
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3
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Huang X, Liang R, Liu Y, Yu L, Yang M, Shang B, Zhang H, Ma J, Chen W, Wang D. Incidence, mortality, and disability-adjusted life years due to silicosis worldwide, 1990-2019: evidence from the global burden of disease study 2019. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:36910-36924. [PMID: 38758446 DOI: 10.1007/s11356-024-33701-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Silicosis is an occupational lung disease because of exposure to silica dust in the workplace. Evidence on the spatiotemporal change of silicosis burden worldwide remains limited. This study utilized data extracted from the Global Burden of Disease Study 2019 to examine the numbers and age-standardized rates of incidence (ASIR), mortality (ASMR), and disability-adjusted life years (DALYs) caused by silicosis between 1990 and 2019. Average annual percentage changes (AAPCs) were calculated to evaluate the temporal trends of age-standardized indicators by sex, region, and socio-demographic index (SDI) since 1990. Results indicated an increase in new silicosis cases globally, rising by 64.61% from 84,426 in 1990 to 138,971 in 2019, with a sustained high number of DALYs attributed to this disease. Although the global age-standardized rates of incidence, mortality, and DALYs of silicosis have decreased since 1990, the number of new cases has increased in 168 countries and territories, and the ASIR of silicosis has also risen in 118 countries and territories, primarily in developing countries. Since 1990, the burden of silicosis among the elderly has significantly increased. Countries with higher SDI experienced a more rapid decline in the silicosis burden. Silicosis remains a public health problem that requires significant attention. Programs for prevention and elimination of this public health issue need to be established in more countries and territories. Protecting young workers from silica dust exposure is crucial to prevent the onset of silicosis in their later years and to reduce the disease burden among older workers.
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Affiliation(s)
- Xuezan Huang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ruyi Liang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yang Liu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Linling Yu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Meng Yang
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Bingxin Shang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Haozhe Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jixuan Ma
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Weihong Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dongming Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, Hubei, China.
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Zhang J, Li Y, Zhu F, Guo X, Huang Y. Time-/dose- series transcriptome data analysis and traditional Chinese medicine treatment of pneumoconiosis. Int J Biol Macromol 2024; 267:131515. [PMID: 38614165 DOI: 10.1016/j.ijbiomac.2024.131515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/15/2024]
Abstract
Pneumoconiosis' pathogenesis is still unclear and specific drugs for its treatment are lacking. Analysis of series transcriptome data often uses a single comparison method, and there are few reports on using such data to predict the treatment of pneumoconiosis with traditional Chinese medicine (TCM). Here, we proposed a new method for analyzing series transcriptomic data, series difference analysis (SDA), and applied it to pneumoconiosis. By comparison with 5 gene sets including existing pneumoconiosis-related genes and gene set functional enrichment analysis, we demonstrated that the new method was not inferior to two existing traditional analysis methods. Furthermore, based on the TCM-drug target interaction network, we predicted the TCM corresponding to the common pneumoconiosis-related genes obtained by multiple methods, and combined them with the high-frequency TCM for its treatment obtained through literature mining to form a new TCM formula for it. After feeding it to pneumoconiosis modeling mice for two months, compared with the untreated group, the coat color, mental state and tissue sections of the mice in the treated group were markedly improved, indicating that the new TCM formula has a certain efficacy. Our study provides new insights into method development for series transcriptomic data analysis and treatment of pneumoconiosis.
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Affiliation(s)
- Jifeng Zhang
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Health and Safety, Ministry of Education, Anhui University of Science and Technology, Huainan, Anhui 232001, China; School of Biological Engineering & Institute of Digital Ecology and Health, Huainan Normal University, Huainan, China
| | - Yaobin Li
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Health and Safety, Ministry of Education, Anhui University of Science and Technology, Huainan, Anhui 232001, China.
| | - Fenglin Zhu
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Health and Safety, Ministry of Education, Anhui University of Science and Technology, Huainan, Anhui 232001, China
| | - Xiaodi Guo
- School of Biological Engineering & Institute of Digital Ecology and Health, Huainan Normal University, Huainan, China
| | - Yuqing Huang
- School of Biological Engineering & Institute of Digital Ecology and Health, Huainan Normal University, Huainan, China
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5
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Ban J, Chang S, Ma P, Wang X, Liu F. lncRNA Profiling of Exosomes and Its Communication Role in Regulating Silica-Stimulated Macrophage Apoptosis and Fibroblast Activation. Biomolecules 2024; 14:146. [PMID: 38397383 PMCID: PMC10886698 DOI: 10.3390/biom14020146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/17/2024] [Accepted: 01/22/2024] [Indexed: 02/25/2024] Open
Abstract
Long-term silica particle exposure leads to interstitial pulmonary inflammation and fibrosis, called silicosis. Silica-activated macrophages secrete a wide range of cytokines resulting in persistent inflammation. In addition, silica-stimulated activation of fibroblast is another checkpoint in the progression of silicosis. The pathogenesis after silica exposure is complex, involving intercellular communication and intracellular signaling pathway transduction, which was ignored previously. Exosomes are noteworthy because of their crucial role in intercellular communication by delivering bioactive substances, such as lncRNA. However, the expression profile of exosomal lncRNA in silicosis has not been reported yet. In this study, exosomes were isolated from the peripheral serum of silicosis patients or healthy donors. The exosomal lncRNAs were profiled using high-throughput sequencing technology. Target genes were predicted, and functional annotation was performed using differentially expressed lncRNAs. Eight aberrant expressed exosomal lncRNAs were considered to play a key role in the process of silicosis according to the OPLS-DA. Furthermore, the increased expression of lncRNA MSTRG.43085.16 was testified in vitro. Its target gene PARP1 was critical in regulating apoptosis based on bioinformatics analysis. In addition, the effects of exosomes on macrophage apoptosis and fibroblast activation were checked based on a co-cultured system. Our findings suggested that upregulation of lncRNA MSTRG.43085.16 could regulate silica-induced macrophage apoptosis through elevating PARP1 expression, and promote fibroblast activation, implying that the exosomal lncRNA MSTRG.43085.16 might have potential as a biomarker for the early diagnosis of silicosis.
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Affiliation(s)
- Jiaqi Ban
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang 110122, China; (J.B.); (S.C.); (P.M.)
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang 550025, China
| | - Shuai Chang
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang 110122, China; (J.B.); (S.C.); (P.M.)
| | - Pengwei Ma
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang 110122, China; (J.B.); (S.C.); (P.M.)
| | - Xin Wang
- Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China;
| | - Fangwei Liu
- Division of Pneumoconiosis, School of Public Health, China Medical University, Shenyang 110122, China; (J.B.); (S.C.); (P.M.)
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education, China Medical University, Shenyang 110122, China
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6
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Kurth L, Casey ML, Mazurek JM, Blackley DJ. Pneumoconiosis incidence and prevalence among US Medicare beneficiaries, 1999-2019. Am J Ind Med 2023; 66:831-841. [PMID: 37482966 PMCID: PMC10924676 DOI: 10.1002/ajim.23519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/25/2023]
Abstract
BACKGROUND Pneumoconiosis is a group of occupational lung diseases caused by dust and fiber exposure. This study analyzes Medicare claims to estimate the burden of pneumoconiosis among fee-for-service (FFS; Medicare Parts A and B) Medicare beneficiaries during 1999-2019 in the United States. METHODS Claim and enrollment information from 81 million continuously enrolled FFS Medicare beneficiaries were analyzed. Beneficiaries with any pneumoconiosis and cause-specific pneumoconiosis (e.g., asbestosis, silicosis) were identified using three case definitions (broad, intermediate, and narrow) with varying diagnostic criteria based on claim International Classification of Diseases, Clinical Modification (ICD-CM) diagnosis codes and Healthcare Common Procedure Coding System codes. Results are presented as ranges of values for the three case definitions. RESULTS The 21-year prevalence range for any pneumoconiosis was 345,383-677,361 (412-833 per 100,000 beneficiaries) using the three case definitions. The highest prevalence was among those ≥75 years of age, males, Whites, and North American Natives. Most claims (70.0%-72.5%) included an ICD-CM diagnosis code for asbestosis. The broad pneumoconiosis prevalence rate increased significantly (p < 0.001) during 2002-2009 by 3%-10% annually and declined significantly by 3%-5% annually starting in 2009. The average annual broad incidence rate declined significantly by 7% annually during 2009-2019. CONCLUSIONS Despite the decline in rate for any pneumoconiosis among Medicare beneficiaries, which is primarily attributed to a decline in asbestosis, pneumoconiosis is prevalent among FFS Medicare beneficiaries.
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Affiliation(s)
- Laura Kurth
- Surveillance Branch, Centers for Disease Control and Prevention, Respiratory Health Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
| | - Megan L. Casey
- National Personal Protective Technology Laboratory, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
| | - Jacek M. Mazurek
- Surveillance Branch, Centers for Disease Control and Prevention, Respiratory Health Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
| | - David J. Blackley
- Surveillance Branch, Centers for Disease Control and Prevention, Respiratory Health Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
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7
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Cai F, Xue S, Zhang M, Chen X, Zhang J, Bao Y, Li Y. Assessing reliability and validity of the Chinese version of the Crown-Crisp Experience Index and its application in pneumoconiosis patients. BMC Psychiatry 2023; 23:263. [PMID: 37072712 PMCID: PMC10111717 DOI: 10.1186/s12888-023-04731-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 03/29/2023] [Indexed: 04/20/2023] Open
Abstract
In China, among all patients with occupational diseases, 90% have pneumoconiosis. The disease, which leads to psychological problems, seriously affects patients' lives. The Crown-Crisp Experience Index (CCEI) is a multidimensional questionnaire to assess patients' psychological conditions. Yet there is no Chinese version of CCEI. This study, therefore, aims to develop a Chinese CCEI, in line with standard localization procedures, by translating, back-translating, and culturally adapting the original English version. The final Chinese version comprises 47 items in six dimensions. The reliability and validity of the Chinese CCEI were tested by analyzing the data collected from 1,000 pneumoconiosis patients from an occupational disease prevention and treatment hospital. A rank sum test was carried out to compare the phobic anxiety (PHO) between pneumoconiosis patients and retired miners. The results of exploratory factor analysis show six principal components, which explain a total of 78.246% variances. Confirmatory factor analysis shows that the Chi-square freedom ratio (χ2/df) were less than 3, the root mean square error approximation (RMSEA) were less than 0.05, comparative fit Index(CFI) and incremental fit index (IFI) were greater than 0.9, average variance extracted(AVE) in six dimensions were less than 0.5, residual variances(CR) were greater than 0.8, Cronbach's alpha coefficient 0.839, Omega ω coefficient 0.889, and S-CVI 0.88. The PHO of pneumoconiosis patients was significantly higher than that of retired miners exemplified by a statistical difference (P < 0.05). The study shows that the Chinese version of CCEI enjoys a high degree of reliability and validity and thus can be used as a screening tool for measuring patients' anxiety and fear levels.
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Affiliation(s)
- Fulin Cai
- The First Affiliated Hospital of Anhui, University of Science and Technology, Huainan, China
- Anhui University of Science and Technology, Huainan, China
| | - Sheng Xue
- Anhui University of Science and Technology, Huainan, China.
| | - Mei Zhang
- The First Affiliated Hospital of Anhui, University of Science and Technology, Huainan, China.
- Anhui University of Science and Technology, Huainan, China.
| | - Xiufeng Chen
- The First Affiliated Hospital of Anhui, University of Science and Technology, Huainan, China
- Anhui University of Science and Technology, Huainan, China
| | - Jing Zhang
- Shool of Mental Health, Bengbu Medical College, Bengbu, China.
| | - Yi Bao
- Prevention and Treatment Hospital for Occupational Diseases, Huainan, China
| | - Yaqiang Li
- The First Affiliated Hospital of Anhui, University of Science and Technology, Huainan, China
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Buralli RJ, Pinheiro RDC, Susviela LL, Duracenko SRC, De Capitani EM, Savaris A, Algranti E. The Brazilian System for Monitoring Workers and General Population Exposed to Asbestos: Development, Challenges, and Opportunities for Workers' Health Surveillance. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4295. [PMID: 36901302 PMCID: PMC10001436 DOI: 10.3390/ijerph20054295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/18/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
UNLABELLED The lack of safe levels of asbestos exposure and the long latency of asbestos-related disease (ARD) makes workers' health surveillance challenging, especially in lower-income countries. This paper aims to present the recently developed Brazilian system for monitoring workers and general population exposed to asbestos (Datamianto), and to discuss the main challenges and opportunities for workers' health surveillance. METHODS a descriptive study of the Datamianto development process, examining all the stages of system planning, development, improvement, validation, availability, and training of health services for its use, in addition to presenting the main challenges and opportunities for its implementation. RESULTS The system was developed by a group of software developers, workers' health specialists, and practitioners, and it was recently incorporated by the Ministry of Health to be used for workers' health surveillance. It can facilitate the monitoring of exposed individuals, epidemiological data analysis, promote cooperation between health services, and ensure periodical medical screening guaranteed to workers by labor legislation. Moreover, the system has a Business Intelligence (BI) platform to analyze epidemiologic data and produce near real-time reports. CONCLUSIONS Datamianto can support and qualify the healthcare and surveillance of asbestos-exposed workers and ARD, promoting a better quality of life for workers and improving companies' compliance with legislation. Even so, the system's significance, applicability, and longevity will depend on the efforts aimed at its implementation and improvement.
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Affiliation(s)
- Rafael Junqueira Buralli
- Departamento de Vigilância em Saúde Ambiental e Saúde do Trabalhador, Ministério da Saúde, Brasil (CGSAT/DSAST/SVS/MS), SRTV 702, Via W5 Norte, Brasília 70723-040, DF, Brazil
| | - Regina Dal Castel Pinheiro
- Gerência em Saúde do Trabalhador, Diretoria de Vigilância Sanitária do Estado de Santa Catarina (GESAT/DIVS/SUV/SES), Av. Rio Branco, 152, Centro, Florianópolis 88015-200, SC, Brazil
| | - Laura Lima Susviela
- Gerência em Saúde do Trabalhador, Diretoria de Vigilância Sanitária do Estado de Santa Catarina (GESAT/DIVS/SUV/SES), Av. Rio Branco, 152, Centro, Florianópolis 88015-200, SC, Brazil
| | - Sandra Renata Canale Duracenko
- Centro de Referência em Saúde do Trabalhador de Piracicaba (Cerest Piracicaba/SMS/PMP), Rua do Trabalho, 634, 1º andar, Vila Independência, Piracicaba 13418-220, SP, Brazil
| | - Eduardo Mello De Capitani
- Departamento de Clínica Médica, Centro de Informação e Assistência Toxicológica (CIATox) de Campinas, FCM, Universidade Estadual de Campinas, Rua Vital Brasil 251, Campinas 13083-888, SP, Brazil
| | - Alexandre Savaris
- Fundação de Amparo à Pesquisa e Extensão Universitária (FAPEU), Rua Delfino Conti, S/N, Florianópolis 88040-370, SC, Brazil
| | - Eduardo Algranti
- Division of Applied Research, Fundacentro, Rua Capote Valente, 710, São Paulo 05409-002, SP, Brazil
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Rayens NT, Rayens EA, Tighe RM. Co-occurrence of pneumoconiosis with COPD, pneumonia and lung cancer. Occup Med (Lond) 2022; 72:527-533. [PMID: 35932472 DOI: 10.1093/occmed/kqac079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Pneumoconiosis is a well-documented occupational disease that is linked to conditions such as chronic obstructive pulmonary disease (COPD), pneumonia and congestive heart failure. Pneumoconiosis prevalence has decreased in the United States, but it remains implicated in tens of thousands of deaths worldwide per year. AIMS To provide a recent update on associations of pneumoconiosis and smoking status with various pulmonary diseases in the United States. METHODS The CDC's National Vital Statistics System was analysed on the entity axis using ICD-10 codes for pulmonary disease and potential lung injury with a cohort of those aged 15 and older during the years 2010-2019. The cases of evaluated diseases were scaled to rates per 100 000 and compared through analysis of variance. RESULTS Pneumoconiosis and smoking history were each associated with an increased rate of COPD, but combined, were associated with an even higher rate of COPD than either factor alone. Smoking history was associated with an increased rate of lung cancer, but pneumoconiosis status was only linked to increased lung cancer prevalence in non-smokers. Both pneumoconiosis and smoking were associated with an increased rate of pneumonia, but combined, had no deviation from the pneumonia rate in those with pneumoconiosis alone. Finally, pneumoconiosis status was associated with decreased rates of non-lung cancers and sepsis. CONCLUSIONS Although pneumoconiosis has become less common in the United States through regulatory and industrial shifts, it is still a significant risk factor for co-occurring pulmonary diseases and will likely remain relevant as international demands for mining, construction and manufacturing change.
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Affiliation(s)
- N T Rayens
- Duke University, Department of Mechanical Engineering and Materials Science, Durham, NC 27708, USA
| | - E A Rayens
- University of Georgia, Department of Infectious Diseases, Athens, GA 30602, USA
| | - R M Tighe
- Duke University, Department of Medicine, Durham, NC 27708, USA
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Yang X, Zhao X, Chen X, Tong R. Proportions distribution of pneumoconiosis stages in China: a study based on a meta-analysis and field investigation. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2022; 57:1024-1036. [PMID: 36285421 DOI: 10.1080/10934529.2022.2138316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 10/06/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Occupational pneumoconiosis is the most serious work-related disease in China. In this paper, pneumoconiosis stages distribution was obtained to study the stages severity of occupational pneumoconiosis patients in China. A meta-analysis was conducted among screening the published literature on the pneumoconiosis epidemiology in China by Stata 15.0. Moreover, a field survey was conducted on 510 migrant workers suffering from pneumoconiosis in four provinces of China, and the results were analyzed by simple linear analysis and ordinal logistic regression analysis. The stage I, II and III pneumoconiosis accounted for 0.71, 0.21, 0.08, respectively, by the results of meta-analysis. The publication bias of these articles is not obvious based on the Egger's test and funnel plots. There was no significant linear correlation between the distribution of pneumoconiosis stages and the economic status and medical conditions in this study. Migrant workers pneumoconiosis stage I, II and III accounted for 0.14, 0.2, 0.66 respectively, which was significantly correlated with length of work and provinces. In China, migrant workers lack effective occupational health protection so that they have higher occupational health risks than urban workers. Therefore, occupational health protection for migrant workers in the occupational health management system needs to be strengthened.
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Affiliation(s)
- Xuesong Yang
- School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing, China
| | - Xu Zhao
- School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing, China
| | - Xingbang Chen
- School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing, China
| | - Ruipeng Tong
- School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing, China
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Nowak-Pasternak J, Lipińska-Ojrzanowska A, Świątkowska B. Epidemiology of silicosis reported to the central register of occupational diseases over last 20 years in Poland. Int J Occup Med Environ Health 2022; 35:561-570. [PMID: 35678162 PMCID: PMC10464807 DOI: 10.13075/ijomeh.1896.01950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/25/2022] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVES The aim of the study was to investigate and assess the incidence of silicosis cases acknowledged as occupational diseases in Poland in 2000-2019. MATERIAL AND METHODS The cases of all medically recognized pneumoconioses, including silicoses, certified as occupational diseases were studied. The records were extracted from the Central Register of Occupational Diseases, the only official Polish central electronic data base of occupational diseases. RESULTS During the period 2000-2019, 2066 confirmed cases of silicoses and 10 665 cases of other pneumoconioses including asbestosis and coal workers' pneumoconiosis were reported to the Central Register of Occupational Diseases. Silicoses accounted for 12.8-21.2% of all pneumoconioses. The number of confirmed silicoses cases was growing along with the length of latency period and was the highest for the period of ≥40 years (513 cases). Over 70% of silicoses cases occurred after occupational exposure >20 years. The most workers who evolved silicosis were employed in manufacturing, predominantly casting of iron, mining and quarrying and construction. CONCLUSIONS The number of confirmed cases of silicosis in Poland decreased in 2000-2019 but the disease still remains an important health problem. Prevention is crucial to reduce further disease incidence. The medical monitoring standards of exposed workers should be improved. Developing new diagnosing guidelines with the use of other imaging examinations, like high-resolution computed tomography, has to be considered. The analysis should contribute into the implementation of silicosis preventative programmes, both at the enterprise and national level. Int J Occup Med Environ Health. 2022;35(5):561-70.
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Affiliation(s)
- Joanna Nowak-Pasternak
- Wielkopolska Centre of Occupational Medicine, Department of Consultative, Diagnostic and Preventive Medicine, Poznań, Poland
| | | | - Beata Świątkowska
- Nofer Institute of Occupational Medicine, Department of Environmental Epidemiology, Łódź, Poland
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Hu X, Zhou R, Hu M, Wen J, Shen T. Differentiation and prediction of pneumoconiosis stage by computed tomography texture analysis based on U-Net neural network. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 225:107098. [PMID: 36057227 DOI: 10.1016/j.cmpb.2022.107098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 08/05/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND AND OBJECTIVE The progressive worsening of pneumoconiosis will ensue a hazardous physical condition in patients. This study details the differential diagnosis of the pneumoconiosis stage, by employing computed tomography (CT) texture analysis, based on U-Net neural network. METHODS The pneumoconiosis location from 92 patients at various stages was extracted by U-Net neural network. Mazda software was employed to analyze the texture features. Three dimensionality reduction methods set the best texture parameters. We applied four methods of the B11 module to analyze the selected texture parameters and calculate the misclassified rate (MCR). Finally, the receiver operating characteristic curve (ROC) of the texture parameters was analyzed, and the texture parameters with diagnostic efficiency were evaluated by calculating the area under curve (AUC). RESULTS The original film was processed by Gaussian and Laplace filters for a better display of the segmented area of pneumoconiosis in all stages. The MCR value obtained by the NDA analysis method under the MI dimension reduction method was the lowest, at 10.87%. In the filtered texture feature parameters, the best AUC was 0.821. CONCLUSIONS CT texture analysis based on the U-Net neural network can be used to identify the staging of pneumoconiosis.
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Affiliation(s)
- Xinxin Hu
- School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, China
| | - Rongsheng Zhou
- The Third People's Hospital of Hefei, Hefei Third Clinical College of Anhui Medical University, Hefei 230022, China
| | - Maoneng Hu
- The Third People's Hospital of Hefei, Hefei Third Clinical College of Anhui Medical University, Hefei 230022, China
| | - Jing Wen
- The Third People's Hospital of Hefei, Hefei Third Clinical College of Anhui Medical University, Hefei 230022, China
| | - Tong Shen
- School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, China.
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13
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Fallahzadeh A, Sharifnejad Tehrani Y, Sheikhy A, Ghamari SH, Mohammadi E, Saeedi Moghaddam S, Esfahani Z, Nasserinejad M, Shobeiri P, Rashidi MM, Rezaei N, Heidari-Foroozan M, Rezaei N, Larijani B, Farzadfar F. The burden of chronic respiratory disease and attributable risk factors in North Africa and Middle East: findings from global burden of disease study (GBD) 2019. Respir Res 2022; 23:268. [PMID: 36175873 PMCID: PMC9521864 DOI: 10.1186/s12931-022-02187-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/19/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND North Africa and Middle East (NAME) has an increasing burden of chronic respiratory diseases (CRDs); however, a systematic understanding of the distribution and trends is not available. We aimed to report the trends of CRDs and attributable risk factors in this region between 1990 and 2019. METHODS Using data from the Global Burden of Diseases Study (GBD) 2019, cause specific mortality served as the basis for estimating incidence and disability-adjusted life years (DALYs). The burden attributable to risk factors was calculated by a comparative risk assessment and contribution of population ageing and growth was determined by decomposition analysis. RESULTS The number of deaths due to CRD in 2019 were 128,513 (110,781 to 114,351). In 2019, the age-standardized incidence rate (ASIR) of CRDs was 1052.8 (924.3 to 1209.4) per 100,000 population and had a 10.3% increase and the age-standardized death rate (ASDR) was 36.1 (30.9 to 40.3) with a 32.9% decrease compared to 1990. In 2019, United Arab Emirates had the highest ASIR (1412.7 [1237.3 to 1622.2]) and Afghanistan had the highest ASDR (67.8 [52.0 to 81.3]). CRDs were responsible for 2.91% of total DALYs in 2019 (1.69% due to chronic obstructive pulmonary disease [COPD] and 1.02% due to asthma). With regard to the components of DALYs, the age-standardized rate of years of life lost (YLL) had a - 39.0% (- 47.1 to - 30.3) decrease; while the age-standardized rate of years lived with disability (YLD) had a 13.4% (9.5 to 17.7) increase. Of total ASDRs of CRDs, 31.6% were attributable to smoking and 14.4% to ambient particulate matter pollution. CONCLUSION CRDs remain a leading cause of death and disability in NAME, with growth in absolute numbers. COPD and asthma were the most common CRDs and smoking was the leading risk factor especially in men. More attention is needed in order to reduce CRDs' burden through appropriate interventions and policies.
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Affiliation(s)
- Aida Fallahzadeh
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Yeganeh Sharifnejad Tehrani
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Sheikhy
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyyed-Hadi Ghamari
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Esmaeil Mohammadi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Saeedi Moghaddam
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Esfahani
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Maryam Nasserinejad
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Biostatistics, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parnian Shobeiri
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad-Mahdi Rashidi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Nazila Rezaei
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa Heidari-Foroozan
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Negar Rezaei
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshad Farzadfar
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Xuan W, Zheng L, Bunes BR, Crane N, Zhou F, Zang L. Engineering solutions to breath tests based on an e-nose system for silicosis screening and early detection in miners. J Breath Res 2022; 16. [PMID: 35303733 DOI: 10.1088/1752-7163/ac5f13] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/18/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVES This study aims to develop an engineering solution to breath tests using an electronic nose (e-nose), and evaluate its diagnosis accuracy for silicosis. Influencing factors of this technique were explored. METHODS 398 non-silicosis miners and 221 silicosis miners were enrolled in this cross-sectional study. Exhaled breath was analyzed by an array of 16 organic nanofiber sensors along with a customized sample processing system. Principal Component Analysis was used to visualize the breath data, and classifiers were trained by two improved cost-sensitive ensemble algorithms (RF and XGBoost) and two classical algorithms (KNN and SVM). All subjects were included to train the screening model, and an early detection model was run with silicosis cases in stage I. Both 5-fold cross-validation and external validation were adopted. Difference in classifiers caused by algorithms and subjects was quantified using a two-factor analysis of variance. The association between personal smoking habits and classification was investigated by the chi-square test. RESULTS Classifiers of ensemble learning performed well in both screening and early detection model, with an accuracy range of 0.817 to 0.987. Classical classifiers showed relatively worse performance. Besides, the ensemble algorithm type and silicosis cases inclusion had no significant effect on classification (p>0.05). There was no connection between personal smoking habits and classification accuracy. CONCLUSION Breath tests based on an e-nose consisted of 16x sensor array performed well in silicosis screening and early detection. Raw data input showed a more significant effect on classification compared with the algorithm. Personal smoking habits had little impact on models, supporting the applicability of models in large-scale silicosis screening. The e-nose technique and the breath analysis methods reported are expected to provide a quick and accurate screening for silicosis, and extensible for other diseases.
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Affiliation(s)
- Wufan Xuan
- China University of Mining and Technology, School of Safety Engineering, Xuzhou, 221116, CHINA
| | - Lina Zheng
- China University of Mining and Technology, School of Safety Engineering, Xuzhou, 221116, CHINA
| | - Benjamin R Bunes
- Vaporsens, Inc, 419 Wakara Way, Salt Lake City, Utah, 84108, UNITED STATES
| | - Nichole Crane
- Vaporsens, Inc, 419 Wakara Way, Salt Lake City, Utah, UT 84108, UNITED STATES
| | - Fubao Zhou
- China University of Mining and Technology, School of Safety Engineering, Xuzhou, 221116, CHINA
| | - Ling Zang
- Nano Institute of Utah, 36 South Wasatch Drive, Salt Lake City, Utah, 84112-8924, UNITED STATES
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Abstract
Anthropogenic activity is related to several environmental imbalances, including dust. Particulate matter can also hinder humans with numerous health consequences, such as asthma, cancer, and pneumoconiosis. With a particular focus on mineral dust, this review is intended to determine in which circumstances occupational exposure occurs in the mining and earthmoving industries. Research followed the guidelines provided by the preferred reporting items for systematic review and meta-analysis protocols and its extension for scoping reviews. Of the 8993 records identified, only 24 passed both exclusion and inclusion criteria. Within the pool of results, it was possible to identify the following variables related to dust exposure: job-related (activity, job category, and site), engineering (equipment, transport system), technical (distance), and physical (season and weather) variables. Due to the significant variance in protocol settings, it was challenging to perform a general analysis, resulting in a study-by-study approach. The most significant conclusion of this study is not related to the setting of occupational exposure, although it derives from it. The necessity of adopting standard procedures for data collection, independent of research objective, was demonstrated within the context of occupational exposure to mineral dust.
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16
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Reul NK, Gray Z, Braid BB, Leland MA. Tuberculosis Screening in Silica-Exposed Workers : Developing a Tool for Health Care Providers. Public Health Rep 2021; 137:244-254. [PMID: 34499541 PMCID: PMC8900246 DOI: 10.1177/00333549211041584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Both the Occupational Safety and Health Administration and Washington State require safety and health protections for workers exposed to respirable crystalline silica, including tuberculosis (TB) screening as part of occupational medical surveillance. We describe the creation of a TB screening tool for silica-exposed workers receiving regulated medical surveillance examinations in Washington State. The tool provides relevant clinical recommendations to assist health care providers and public health practitioners who choose to use the tool when performing such examinations. A cross-disciplinary team at the Washington State Department of Labor and Industries created the TB screening tool to help health care providers identify silica-exposed workers who should receive a comprehensive evaluation for active TB disease and workers who should or must receive testing for latent TB infection. The Washington State Adult Tuberculosis Screening Tool for Workers Exposed to Respirable Crystalline Silica benefits occupational and respiratory clinicians and public health practitioners by aiding both the individual- and population-level delivery of occupational health and TB screening services to silica-exposed workers receiving required medical surveillance examinations.
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Affiliation(s)
- Nicholas K. Reul
- Office of the Medical Director, Washington State Department of Labor and Industries, Olympia, WA, USA, Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA,Department of Medicine, University of Washington, Seattle, WA, USA,Nicholas K. Reul, MD, MPH, University of Washington, Department of Environmental and Occupational Health Sciences, Box 359739, 325 Ninth Ave, Seattle, WA 98104, USA;
| | - Zachary Gray
- Office of the Medical Director, Washington State Department of Labor and Industries, Olympia, WA, USA
| | - Barbara Burchell Braid
- Office of the Medical Director, Washington State Department of Labor and Industries, Olympia, WA, USA
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17
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Lu C, Dasgupta P, Cameron J, Fritschi L, Baade P. A systematic review and meta-analysis on international studies of prevalence, mortality and survival due to coal mine dust lung disease. PLoS One 2021; 16:e0255617. [PMID: 34343220 PMCID: PMC8330946 DOI: 10.1371/journal.pone.0255617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 07/20/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Coal mine dust lung disease comprises a group of occupational lung diseases including coal workers pneumoconiosis. In many countries, there is a lack of robust prevalence estimates for these diseases. Our objective was to perform a systematic review and meta-analysis of published contemporary estimates on prevalence, mortality, and survival for coal mine dust lung disease worldwide. METHODS Systematic searches of PubMed, EMBASE and Web of Science databases for English language peer-reviewed articles published from 1/1/2000 to 30/03/2021 that presented quantitative estimates of prevalence, mortality, or survival for coal mine dust lung disease. Review was conducted per PRISMA guidelines. Articles were screened independently by two authors. Studies were critically assessed using Joanna Briggs Institute tools. Pooled prevalence estimates were obtained using random effects meta-analysis models. Heterogeneity was measured using the I2 statistics and publication bias using Egger's tests. RESULTS Overall 40 studies were included, (31 prevalence, 8 mortality, 1 survival). Of the prevalence estimates, fifteen (12 from the United States) were retained for the meta-analysis. The overall pooled prevalence estimate for coal workers pneumoconiosis among underground miners was 3.7% (95% CI 3.0-4.5%) with high heterogeneity between studies. The pooled estimate of coal workers pneumoconiosis prevalence in the United States was higher in the 2000s than in the 1990s, consistent with published reports of increasing prevalence following decades of declining trends. Sub-group analyses also indicated higher prevalence among underground miners, and in Central Appalachia. The mortality studies were suggestive of reduced pneumoconiosis mortality rates over time, relative to the general population. CONCLUSION The ongoing prevalence of occupational lung diseases among contemporary coal miners highlights the importance of respiratory surveillance and preventive efforts through effective dust control measures. Limited prevalence studies from countries other than the United States limits our understanding of the current disease burden in other coal-producing countries.
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Affiliation(s)
- Cynthia Lu
- Cancer Council Queensland, Brisbane, Queensland, Australia
| | | | - Jessica Cameron
- Cancer Council Queensland, Brisbane, Queensland, Australia
- School of Mathematical Sciences, Queensland University of Technology, Gardens Point, Brisbane, Queensland, Australia
| | - Lin Fritschi
- School of Public Health, Curtin University, Bentley, Western Australia, Australia
| | - Peter Baade
- Cancer Council Queensland, Brisbane, Queensland, Australia
- School of Mathematical Sciences, Queensland University of Technology, Gardens Point, Brisbane, Queensland, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Southport, Queensland, Australia
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18
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Fernández Pérez ER. Uncovering the Risk of Inhalational Exposures Across Interstitial Lung Diseases. Chest 2021; 160:19-20. [PMID: 34246365 DOI: 10.1016/j.chest.2021.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Evans R Fernández Pérez
- Department of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health, Denver, CO.
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19
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Gaffney AW, Himmelstein DU, Christiani DC, Woolhandler S. Socioeconomic Inequality in Respiratory Health in the US From 1959 to 2018. JAMA Intern Med 2021; 181:968-976. [PMID: 34047754 PMCID: PMC8261605 DOI: 10.1001/jamainternmed.2021.2441] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/31/2021] [Indexed: 12/19/2022]
Abstract
Importance Air quality has improved and smoking rates have declined over the past half-century in the US. It is unknown whether such secular improvements, and other policies, have helped close socioeconomic gaps in respiratory health. Objective To describe long-term trends in socioeconomic disparities in respiratory disease prevalence, pulmonary symptoms, and pulmonary function. Design, Setting, and Participants This repeated cross-sectional analysis of the nationally representative National Health and Nutrition Examination Surveys (NHANES) and predecessor surveys, conducted from 1959 to 2018. included 160 495 participants aged 6 to 74 years. Exposures Family income quintile defined using year-specific thresholds; educational attainment. Main Outcomes and Measures Trends in socioeconomic disparities in prevalence of current/former smoking among adults aged 25 to 74 years; 3 respiratory symptoms (dyspnea on exertion, cough, and wheezing) among adults aged 40 to 74 years; asthma stratified by age (6-11, 12-17, and 18-74 years); chronic obstructive pulmonary disease ([COPD] adults aged 40-74 years); and 3 measures of pulmonary function (forced expiratory volume in 1 second [FEV1], forced vital capacity [FVC], and FEV1/FVC<0.70) among adults aged 24 to 74 years. Results Our sample included 160 495 individuals surveyed between 1959 and 2018: 27 948 children aged 6 to 11 years; 26 956 children aged 12 to 17 years; and 105 591 adults aged 18 to 74 years. Income- and education-based disparities in smoking prevalence widened from 1971 to 2018. Socioeconomic disparities in respiratory symptoms persisted or worsened from 1959 to 2018. For instance, from 1971 to 1975, 44.5% of those in the lowest income quintile reported dyspnea on exertion vs 26.4% of those in the highest quintile, whereas from 2017 to 2018 the corresponding proportions were 48.3% and 27.9%. Disparities in cough and wheezing rose over time. Asthma prevalence rose for all children after 1980, but more sharply among poorer children. Income-based disparities in diagnosed COPD also widened over time, from 4.5 percentage points (age- and sex-adjusted) in 1971 to 11.3 percentage points from 2013 to 2018. Socioeconomic disparities in FEV1 and FVC also increased. For instance, from 1971 to 1975, the age- and height-adjusted FEV1 of men in the lowest income quintile was 203.6 mL lower than men in the highest quintile, a difference that widened to 248.5 mL from 2007 to 2012 (95% CI, -328.0 to -169.0). However, disparities in rates of FEV1/FVC lower than 0.70 changed little. Conclusions and Relevance Socioeconomic disparities in pulmonary health persisted and potentially worsened over the past 6 decades, suggesting that the benefits of improved air quality and smoking reductions have not been equally distributed. Socioeconomic position may function as an independent determinant of pulmonary health.
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Affiliation(s)
- Adam W. Gaffney
- Cambridge Health Alliance, Cambridge, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - David U. Himmelstein
- Cambridge Health Alliance, Cambridge, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- City University of New York at Hunter College, New York
| | - David C. Christiani
- Harvard Medical School, Boston, Massachusetts
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Steffie Woolhandler
- Cambridge Health Alliance, Cambridge, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- City University of New York at Hunter College, New York
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20
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Exploration of Three Incidence Trend Prediction Models Based on the Number of Diagnosed Pneumoconiosis Cases in China From 2000 to 2019. J Occup Environ Med 2021; 63:e440-e444. [PMID: 34184661 DOI: 10.1097/jom.0000000000002258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To predict the future incidence trend of pneumoconiosis in China, and to evaluate three predictive models. METHODS We selected pneumoconiosis cases (2000-2019) to fit Generalized Additive Model (GAM), Curve Fitting Method, and GM (1,1) Model, chosen average fitting relative error, relative error of prediction, and coefficient of determination to evaluate models. RESULTS Chinese incidence trend of pneumoconiosis would decrease in the future. Predicted value of GAM (14,566) and Curve Fitting Method (15,781) in 2019 was close to the actual value (15,898). Relative error of prediction of GAM and Curve Fitting Method was -8.38% and -0.73%, respectively. CONCLUSIONS The government needs to strengthen prevention and control since pneumoconiosis cases might remain huge in the future. Besides, we advise that GAM and Curve Fitting Method can be used to predict Chinese incidence trend of pneumoconiosis.
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21
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Ju Z, Shao J, Zhou M, Jin J, Pan H, Ding P, Huang R. Transcriptomic and metabolomic profiling reveal the p53-dependent benzeneacetic acid attenuation of silica-induced epithelial-mesenchymal transition in human bronchial epithelial cells. Cell Biosci 2021; 11:30. [PMID: 33546743 PMCID: PMC7866764 DOI: 10.1186/s13578-021-00545-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 01/22/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Silica exposure underlies the development of silicosis, one of the most serious occupational hazards worldwide. We aimed to explore the interaction of the silica-induced epithelial-mesenchymal transition (EMT)-related transcripts with the cellular metabolism regulated by p53. METHODS We knocked out p53 using CRISPR/Cas9 in the human bronchial epithelial (HBE) cell line. The transcriptomic and metabolomic analyses and integrative omics were conducted using microarrays, GC-MS, and MetaboAnalyst, respectively. RESULTS Fifty-two mRNAs showed significantly altered expression in the HBE p53-KO cells post-silica exposure. A total of 42 metabolites were putatively involved in p53-dependent silica-mediated HBE cell dysfunction. Through integrated data analysis, we obtained five significant p53-dependent metabolic pathways including phenylalanine, glyoxylate, dicarboxylate, and linoleic acid metabolism, and the citrate cycle. Through metabolite screening, we further identified that benzeneacetic acid, a key regulation metabolite in the phenylalanine metabolic pathway, attenuated the silica-induced EMT in HBE cells in a p53-dependent manner. Interestingly, despite the extensive p53-related published literature, the clinical translation of these studies remains unsubstantial. CONCLUSIONS Our study offers new insights into the molecular mechanisms by which epithelial cells respond to silica exposure and provide fresh perspective and direction for future clinical biomarker research and potential clinically sustainable and translatable role of p53.
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Affiliation(s)
- Zhao Ju
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Jianlin Shao
- Zhejiang Provincial Center for Cardiovascular Disease Prevention and Control, Zhejiang Hospital, Hangzhou, Zhejiang, China
| | - Meiling Zhou
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Jing Jin
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Huiji Pan
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Ping Ding
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Ruixue Huang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, 410078, Hunan, China.
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Xie L, Zeng Y. Therapeutic Potential of Exosomes in Pulmonary Fibrosis. Front Pharmacol 2020; 11:590972. [PMID: 33343360 PMCID: PMC7746877 DOI: 10.3389/fphar.2020.590972] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/12/2020] [Indexed: 12/13/2022] Open
Abstract
Pulmonary fibrosis is closely associated with the recruitment of fibroblasts from capillary vessels with damaged endothelial cells, the epithelial mesenchymal transition (EMT) of type II alveolar epithelial cells, and the transformation of fibroblasts to myofibroblasts. Recent studies suggest that EMT is a key factor in the pathogenesis of pulmonary fibrosis, as the disruption of EMT-related effector molecules can inhibit the occurrence and development of PF. With the numerous advancements made in molecular biology in recent years, researchers have discovered that exosomes and their cargos, such as miRNAs, lncRNAs, and proteins, can promote or inhibit the EMT, modulate the transformation of fibroblasts into myofibroblasts, contribute to the proliferation of fibroblasts and promote immunoregulatory and mitochondrial damage during pulmonary fibrosis. Exosomes are key factors regulating the differentiation of bone marrow mesenchymal stem cells (BMSCs) into myofibroblasts. Interestingly, exosomes derived from BMSCs under pathological and physiological conditions may promote or inhibit the EMT of type II alveolar epithelial cells and the transformation of fibroblasts into myofibroblasts to regulate pulmonary fibrosis. Thus, exosomes may become a new direction in the study of drugs for the treatment of pulmonary fibrosis.
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Affiliation(s)
- Linshen Xie
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Ye Zeng
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
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