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Schüz J, Kovalevskiy E, Olsson A, Moissonnier M, Ostroumova E, Ferro G, Feletto E, Schonfeld SJ, Byrnes G, Tskhomariia I, Straif K, Morozova T, Kromhout H, Bukhtiyarov I. Cancer mortality in chrysotile miners and millers, Russian Federation: main results (Asbest Chrysotile Cohort-Study). J Natl Cancer Inst 2024; 116:866-875. [PMID: 38247448 PMCID: PMC11160488 DOI: 10.1093/jnci/djad262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/06/2023] [Accepted: 11/27/2023] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND We investigated mortality in workers of the world's largest chrysotile mine and enrichment factories located in the town of Asbest, Russian Federation. METHODS This historical cohort study included all workers employed for at least 1 year between 1975 and 2010 and follow-up until the end of 2015. Cumulative exposure to dust was estimated based on workers' complete occupational history linked to dust measurements systematically collected from the 1950s. Exposure to chrysotile fibers was estimated using dust-to-fiber conversion factors. Relative risks (RRs) and 95% confidence intervals (CIs) were estimated as mortality rate ratios in Poisson regression models. RESULTS A total of 30 445 (32% women) workers accumulated 721 312 person-years at risk and 11 110 (36%) died. Of the workers, 54% had more than 30 years since their first exposure. We found an exposure-response between cumulative dust and lung cancer mortality in men. No clear association with dust exposure but a modest increase in the highest category of fiber exposure was seen for lung cancer in women. Mesothelioma mortality was increased (RR = 7.64, 95% CI = 1.18 to 49.5, to at least 80 fibers per cm3 years and RR = 4.56, 95% CI = 0.94 to 22.1, to at least 150 mg/m3 years [dust]), based on 13 deaths. For colorectal and stomach cancer, there were inconsistent associations. No associations were seen for laryngeal or ovarian cancer. CONCLUSION In this large-scale epidemiological study in the world's largest active asbestos mine, we confirmed an increased risk of mesothelioma with high fiber exposure and an increasing mortality for lung cancer in men with increasing dust exposure. Less clear-cut increased lung cancer mortality was seen in the women. Continued mortality follow-up is warranted.
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Affiliation(s)
- Joachim Schüz
- International Agency for Research on Cancer-World Health Organization, Lyon, France
| | - Evgeny Kovalevskiy
- Federal State Budgetary Scientific Institution, Izmerov Research Institute of Occupational Health, Moscow, Russian Federation
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | - Ann Olsson
- International Agency for Research on Cancer-World Health Organization, Lyon, France
| | - Monika Moissonnier
- International Agency for Research on Cancer-World Health Organization, Lyon, France
| | - Evgenia Ostroumova
- International Agency for Research on Cancer-World Health Organization, Lyon, France
| | - Gilles Ferro
- International Agency for Research on Cancer-World Health Organization, Lyon, France
| | - Eleonora Feletto
- International Agency for Research on Cancer-World Health Organization, Lyon, France
- The Daffodil Centre, The University of Sydney, A Joint Venture with Cancer Council New South Wales, Sydney, Australia
| | - Sara J Schonfeld
- International Agency for Research on Cancer-World Health Organization, Lyon, France
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Graham Byrnes
- International Agency for Research on Cancer-World Health Organization, Lyon, France
| | - Iraklii Tskhomariia
- Federal State Budgetary Scientific Institution, Izmerov Research Institute of Occupational Health, Moscow, Russian Federation
| | - Kurt Straif
- International Agency for Research on Cancer-World Health Organization, Lyon, France
| | - Tatiana Morozova
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | - Hans Kromhout
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Igor Bukhtiyarov
- Federal State Budgetary Scientific Institution, Izmerov Research Institute of Occupational Health, Moscow, Russian Federation
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
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2
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Peng Y, Ernani V, Liu D, Guo Q, Hopps M, Cappelleri JC, Gupta R, de Andrade M, Chen J, Yi ES, Yang P. Lung adenocarcinoma patients with ROS1-rearranged tumors by sex and smoking intensity. Heliyon 2024; 10:e28285. [PMID: 38560203 PMCID: PMC10981064 DOI: 10.1016/j.heliyon.2024.e28285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
Background ROS1 rearrangements (ROS1+) define a distinct molecular subset of lung adenocarcinomas. ROS1 + tumors are known to occur more in never-smokers, but the frequency and outcome of ROS1 positivity by sex and smoking intensity are not clearly documented. Patients and methods This patient cohort study included all never- (<100 cigarettes lifetime) and light- (100 cigarettes-20 pack-years) smokers, and a sample of heavy-smokers. ROS1 + rates by sex and smoking intensity were compared within and beyond our study. Survival outcomes were analyzed using Kaplan-Meier curves and Cox proportional hazards models. Results Of the 571 total patients, ROS1 + was detected in 24 (4.2%): 6.4% in men and 3.0% in women; 5.1% in never-, 5.7% in light-, and 1.8% in heavy-smokers (P=0.05). Among the 209 stage IIIB-IV patients, men had much higher ROS1 + rate (11.1%) not only than women (1.7%, P=0.004) in our study, but also than men (0.4%-1.8%) in 8 published studies (Ps = 0.0019-0.0001). ROS1+ rates were similar between never- (9.3%) and light-smokers (8.1%) and significantly lower in heavy-smokers (1.2%, P=0.017), a finding confirmed by 6 published studies (Ps = 0.041-0.0001). Overall survival of ROS1 + patients were significantly better than the ROS1- (P=0.023) mainly due to targeted therapy. Among patients who exhibited resistance to crizotinib, follow-up treatment of entrectinib and lorlatinib showed remarkable survival benefits. Conclusions The ROS1 + rates were higher in men than in women, and similar in never- and light-smokers, more pronounced in stage IIIB-IV patients. Newer-generation ALK/ROS1-targeted drugs showed efficacy in a cohort of crizotinib resistant ROS1 + patients. These results, when validated, could assist efficiently accruing ROS1 + patients.
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Affiliation(s)
- Yanmei Peng
- Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, AZ, 85259, USA
- Department of Oncology, Fangshan Hospital, Beijing University of Chinese Medicine, Beijing, 102400, China
| | - Vinicius Ernani
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, AZ, 85054, USA
| | - Dan Liu
- Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, AZ, 85259, USA
- Division of Pulmonary & Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, 610064, China
| | - Qian Guo
- Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, AZ, 85259, USA
- Department of Medical Oncology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 610041, China
| | - Markay Hopps
- Vaccine R&D, Pfizer Inc, New York, NY, 10017, USA
| | | | - Ruchi Gupta
- Division of Biostatistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, 55905, USA
| | - Mariza de Andrade
- Division of Biostatistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, 55905, USA
| | - Jun Chen
- Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, AZ, 85259, USA
- The Second Affiliated Hospital of Dalian Medical University, Shahekou District, Dalian, 116023, China
| | - Eunhee S. Yi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Ping Yang
- Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, AZ, 85259, USA
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3
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Olsson A, Bouaoun L, Schüz J, Vermeulen R, Behrens T, Ge C, Kromhout H, Siemiatycki J, Gustavsson P, Boffetta P, Kendzia B, Radoi L, Barul C, Karrasch S, Wichmann HE, Consonni D, Landi MT, Caporaso NE, Merletti F, Migliore E, Richiardi L, Jöckel KH, Ahrens W, Pohlabeln H, Fernández-Tardón G, Zaridze D, Field JK, Lissowska J, Świątkowska B, McLaughlin JR, Demers PA, Schejbalova M, Foretova L, Janout V, Pándics T, Fabianova E, Mates D, Forastiere F, Straif K, Brüning T, Vlaanderen J, Peters S. Lung Cancer Risks Associated with Occupational Exposure to Pairs of Five Lung Carcinogens: Results from a Pooled Analysis of Case-Control Studies (SYNERGY). ENVIRONMENTAL HEALTH PERSPECTIVES 2024; 132:17005. [PMID: 38236172 PMCID: PMC10795675 DOI: 10.1289/ehp13380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 12/11/2023] [Accepted: 12/20/2023] [Indexed: 01/19/2024]
Abstract
BACKGROUND While much research has been done to identify individual workplace lung carcinogens, little is known about joint effects on risk when workers are exposed to multiple agents. OBJECTIVES We investigated the pairwise joint effects of occupational exposures to asbestos, respirable crystalline silica, metals (i.e., nickel, chromium-VI), and polycyclic aromatic hydrocarbons (PAH) on lung cancer risk, overall and by major histologic subtype, while accounting for cigarette smoking. METHODS In the international 14-center SYNERGY project, occupational exposures were assigned to 16,901 lung cancer cases and 20,965 control subjects using a quantitative job-exposure matrix (SYN-JEM). Odds ratios (ORs) and 95% confidence intervals (CIs) were computed for ever vs. never exposure using logistic regression models stratified by sex and adjusted for study center, age, and smoking habits. Joint effects among pairs of agents were assessed on multiplicative and additive scales, the latter by calculating the relative excess risk due to interaction (RERI). RESULTS All pairwise joint effects of lung carcinogens in men were associated with an increased risk of lung cancer. However, asbestos/metals and metals/PAH resulted in less than additive effects; while the chromium-VI/silica pair showed marginally synergistic effect in relation to adenocarcinoma (RERI: 0.24; CI: 0.02, 0.46; p = 0.05). In women, several pairwise joint effects were observed for small cell lung cancer including exposure to PAH/silica (OR = 5.12; CI: 1.77, 8.48), and to asbestos/silica (OR = 4.32; CI: 1.35, 7.29), where exposure to PAH/silica resulted in a synergistic effect (RERI: 3.45; CI: 0.10, 6.8). DISCUSSION Small or no deviation from additive or multiplicative effects was observed, but co-exposure to the selected lung carcinogens resulted generally in higher risk than exposure to individual agents, highlighting the importance to reduce and control exposure to carcinogens in workplaces and the general environment. https://doi.org/10.1289/EHP13380.
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Affiliation(s)
- Ann Olsson
- International Agency for Research on Cancer (IARC/WHO), Lyon, France
| | - Liacine Bouaoun
- International Agency for Research on Cancer (IARC/WHO), Lyon, France
| | - Joachim Schüz
- International Agency for Research on Cancer (IARC/WHO), Lyon, France
| | - Roel Vermeulen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Thomas Behrens
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University (IPA), Bochum, Germany
| | - Calvin Ge
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Hans Kromhout
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Jack Siemiatycki
- Department of Social and Preventive Medicine, University of Montreal, Montreal, Canada
| | - Per Gustavsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Paolo Boffetta
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, New York, USA
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Benjamin Kendzia
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University (IPA), Bochum, Germany
| | - Loredana Radoi
- Center for Research in Epidemiology and Population Health (CESP), Team Exposome and Heredity, U1018 Inserm, University Paris-Saclay, University Paris Cité, Villejuif, France
| | - Christine Barul
- University Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) -UMR_S 1085, Pointe-à-Pitre, France
| | - Stefan Karrasch
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
- Institute of Epidemiology, Helmholtz Zentrum München—German Research Center for Environmental Health, Neuherberg, Germany
| | - Heinz-Erich Wichmann
- Institute of Epidemiology, Helmholtz Zentrum München—German Research Center for Environmental Health, Neuherberg, Germany
- Institut für Medizinische Informatik Biometrie Epidemiologie, Ludwig Maximilians University, Munich, Germany
| | - Dario Consonni
- Epidemiology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Maria Teresa Landi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Neil E. Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Franco Merletti
- Cancer Epidemiology Unit, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Enrica Migliore
- Cancer Epidemiology Unit, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Lorenzo Richiardi
- Cancer Epidemiology Unit, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Karl-Heinz Jöckel
- Institute for Medical Informatics, Biometry and Epidemiology (IMIBE), University Hospital Essen, Essen, Germany
| | - Wolfgang Ahrens
- Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany
- Faculty of Mathematics and Computer Science, Institute of Statistics, University of Bremen, Bremen, Germany
| | - Hermann Pohlabeln
- Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany
| | | | - David Zaridze
- Department of Cancer Epidemiology and Prevention, N.N. Blokhin National Research Centre of Oncology, Moscow, Russia
| | - John K. Field
- Roy Castle Lung Cancer Research Programme, Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, UK
| | - Jolanta Lissowska
- Epidemiology Unit, Department of Cancer Epidemiology and Prevention, M. Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Beata Świątkowska
- Department of Environmental Epidemiology, The Nofer Institute of Occupational Medicine, Lodz, Poland
| | - John R. McLaughlin
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Paul A. Demers
- Occupational Cancer Research Centre, Ontario Health, Toronto, Canada
| | - Miriam Schejbalova
- Institute of Hygiene and Epidemiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | - Vladimir Janout
- Faculty of Health Sciences, Palacky University, Olomouc, Czech Republic
| | | | - Eleonora Fabianova
- Regional Authority of Public Health, Banská Bystrica, Slovakia
- Faculty of Health, Catholic University, Ružomberok, Slovakia
| | - Dana Mates
- National Institute of Public Health, Bucharest, Romania
| | | | - Kurt Straif
- ISGlobal, Barcelona, Spain
- Boston College, Chestnut Hill, Massachusetts, USA
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University (IPA), Bochum, Germany
| | - Jelle Vlaanderen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Susan Peters
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
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Gupta S. Risk of lung cancer among welders and flame cutters: A systematic review and meta-analysis of case controlled studies. Bull Cancer 2023; 110:1279-1287. [PMID: 37802714 DOI: 10.1016/j.bulcan.2023.08.003] [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: 04/08/2023] [Revised: 06/28/2023] [Accepted: 08/11/2023] [Indexed: 10/08/2023]
Abstract
OBJECTIVES The process of flame-cutting and welding is believed to be highly hazardous for workers involved in related industries. The study aims to provide a comprehensive quantitative effect of the risk of lung cancer due to exposure to welding fumes. METHODS A systematic review was conducted to extract published estimates of Odd's Ratio (OR) of the association of lung cancer and exposure to welding fumes, till 2022. Studies were extracted from the PubMed and Cochrane database and Google Scholar. Studies from all parts of the world were considered. Through a meta-analysis conducted with random effects model, a forest plot was created, and publication bias was checked using a funnel plot. RESULTS The meta-analysis yielded an OR of 1.28 (95% CI 1.055-1.55), with a moderately high heterogeneity between the studies [I2=72%; T2=0.0524;Q=36.12(P<0.001)]. The sensitivity and influence analysis confirmed the absence of highly influential studies that may have led to potentially distorted outcomes. The funnel plot showed no evidence of publication bias among the studies included in this analysis. CONCLUSION As the association between lung cancer and occupational hazards from exposure to welding fumes is certain, there is a need to control and regulate industrial activities that involve welding and flame cutting. Already, restrictions on safe levels of fume in the workplace are in operation.
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Affiliation(s)
- Saptorshi Gupta
- International Institute for Population Sciences, Deonar, Mumbai 400088, India.
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5
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Turner MC, Cogliano V, Guyton K, Madia F, Straif K, Ward EM, Schubauer-Berigan MK. Research Recommendations for Selected IARC-Classified Agents: Impact and Lessons Learned. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:105001. [PMID: 37902675 PMCID: PMC10615125 DOI: 10.1289/ehp12547] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/31/2023]
Abstract
BACKGROUND The International Agency for Research on Cancer (IARC) Monographs program assembles expert working groups who publish a critical review and evaluation of data on agents of interest. These comprehensive reviews provide a unique opportunity to identify research needs to address classification uncertainties. A multidisciplinary expert review and workshop held in 2009 identified research gaps and needs for 20 priority occupational chemicals, metals, dusts, and physical agents, with the goal of stimulating advances in epidemiological studies of cancer and carcinogen mechanisms. Overarching issues were also described. OBJECTIVES In this commentary we review the current status of the evidence for the 20 priority agents identified in 2009. We examine whether identified Research Recommendations for each agent were addressed and their potential impact on resolving classification uncertainties. METHODS We reviewed the IARC classifications of each of the 20 priority agents and identified major new epidemiological and human mechanistic studies published since the last evaluation. Information sources were either the published Monograph for agents that have been reevaluated or, for agents not yet reevaluated, Advisory Group reports and literature searches. Findings are described in view of recent methodological developments in Monographs evidence evaluation processes. DISCUSSION The majority of the 20 priority agents were reevaluated by IARC since 2009. The overall carcinogen classifications of 9 agents advanced, and new cancer sites with either "sufficient" or "limited" evidence of carcinogenicity were also identified for 9 agents. Examination of published findings revealed whether evidence gaps and Research Recommendations have been addressed and highlighted remaining uncertainties. During the past decade, new research addressed a range of the 2009 recommendations and supported updated classifications for priority agents. This supports future efforts to systematically apply findings of Monograph reviews to identify research gaps and priorities relevant to evaluation criteria established in the updated IARC Monograph Preamble. https://doi.org/10.1289/EHP12547.
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Affiliation(s)
- Michelle C. Turner
- Barcelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- CIBER Epidemiología y Salud Pública, Madrid, Spain
| | - Vincent Cogliano
- California Environmental Protection Agency Office of Environmental Health Hazard Assessment, Oakland, California, USA
| | - Kathryn Guyton
- National Academies of Sciences, Engineering, and Medicine, Washington, District of Columbia, USA
| | - Federica Madia
- International Agency for Research on Cancer, Lyon, France
| | - Kurt Straif
- Barcelona Institute for Global Health, Barcelona, Spain
- Boston College, Massachusetts, USA
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6
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Behrens T, Ge C, Vermeulen R, Kendzia B, Olsson A, Schüz J, Kromhout H, Pesch B, Peters S, Portengen L, Gustavsson P, Mirabelli D, Guénel P, Luce D, Consonni D, Caporaso NE, Landi MT, Field JK, Karrasch S, Wichmann HE, Siemiatycki J, Parent ME, Richiardi L, Simonato L, Jöckel KH, Ahrens W, Pohlabeln H, Fernández-Tardón G, Zaridze D, McLaughlin JR, Demers PA, Świątkowska B, Lissowska J, Pándics T, Fabianova E, Mates D, Bencko V, Foretova L, Janout V, Boffetta P, Bueno-de-Mesquita B, Forastiere F, Straif K, Brüning T. Occupational exposure to nickel and hexavalent chromium and the risk of lung cancer in a pooled analysis of case-control studies (SYNERGY). Int J Cancer 2023; 152:645-660. [PMID: 36054442 DOI: 10.1002/ijc.34272] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 02/01/2023]
Abstract
There is limited evidence regarding the exposure-effect relationship between lung-cancer risk and hexavalent chromium (Cr(VI)) or nickel. We estimated lung-cancer risks in relation to quantitative indices of occupational exposure to Cr(VI) and nickel and their interaction with smoking habits. We pooled 14 case-control studies from Europe and Canada, including 16 901 lung-cancer cases and 20 965 control subjects. A measurement-based job-exposure-matrix estimated job-year-region specific exposure levels to Cr(VI) and nickel, which were linked to the subjects' occupational histories. Odds ratios (OR) and associated 95% confidence intervals (CI) were calculated by unconditional logistic regression, adjusting for study, age group, smoking habits and exposure to other occupational lung carcinogens. Due to their high correlation, we refrained from mutually adjusting for Cr(VI) and nickel independently. In men, ORs for the highest quartile of cumulative exposure to CR(VI) were 1.32 (95% CI 1.19-1.47) and 1.29 (95% CI 1.15-1.45) in relation to nickel. Analogous results among women were: 1.04 (95% CI 0.48-2.24) and 1.29 (95% CI 0.60-2.86), respectively. In men, excess lung-cancer risks due to occupational Cr(VI) and nickel exposure were also observed in each stratum of never, former and current smokers. Joint effects of Cr(VI) and nickel with smoking were in general greater than additive, but not different from multiplicative. In summary, relatively low cumulative levels of occupational exposure to Cr(VI) and nickel were associated with increased ORs for lung cancer, particularly in men. However, we cannot rule out a combined classical measurement and Berkson-type of error structure, which may cause differential bias of risk estimates.
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Affiliation(s)
- Thomas Behrens
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance-Institute of the Ruhr-University Bochum (IPA), Germany
| | - Calvin Ge
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Roel Vermeulen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Benjamin Kendzia
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance-Institute of the Ruhr-University Bochum (IPA), Germany
| | - Ann Olsson
- International Agency for Research on Cancer (IARC/WHO), Lyon, France
| | - Joachim Schüz
- International Agency for Research on Cancer (IARC/WHO), Lyon, France
| | - Hans Kromhout
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Beate Pesch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance-Institute of the Ruhr-University Bochum (IPA), Germany
| | - Susan Peters
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Lützen Portengen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Per Gustavsson
- The Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Dario Mirabelli
- Cancer Epidemiology Unit, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Pascal Guénel
- Center for Research in Epidemiology and Population Health (CESP), Team Exposome and Heredity, U1018 Inserm, University Paris-Saclay, Institut Gustave Roussy, Villejuif, France
| | - Danièle Luce
- Univ. Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail)-UMR_S 1085, Pointe-à-Pitre, France
| | - Dario Consonni
- Epidemiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | | | - John K Field
- Roy Castle Lung Cancer Research Programme, Department of Molecular and Clinical Cancer Medicine, The University of Liverpool, Liverpool, UK
| | - Stefan Karrasch
- Institute of Epidemiology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital LMU Munich; Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Heinz-Erich Wichmann
- Institute of Epidemiology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
| | - Jack Siemiatycki
- University of Montreal Hospital Research Center (CRCHUM), Montreal, Canada
| | - Marie-Elise Parent
- Epidemiology and Biostatistics Unit, Centre Armand-Frappier Santé Biotechnologie, Institut national de la recherche scientifique, Laval, Quebec, Canada
| | - Lorenzo Richiardi
- Cancer Epidemiology Unit, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Lorenzo Simonato
- Department of Cardiovascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Karl-Heinz Jöckel
- Institute for Medical Informatics, Biometry and Epidemiology, University of Duisburg-Essen, Essen, Germany
| | - Wolfgang Ahrens
- Leibniz Institute for Prevention Research and Epidemiology-BIPS, Bremen, Germany
| | - Hermann Pohlabeln
- Leibniz Institute for Prevention Research and Epidemiology-BIPS, Bremen, Germany
| | | | - David Zaridze
- Department of Epidemiology and Prevention, N.N. Blokhin National Medical Research Centre of Oncology, Moscow, Russia
| | - John R McLaughlin
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Paul A Demers
- Occupational Cancer Research Centre, Ontario Health, Toronto, Canada
| | | | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | | | | | - Dana Mates
- National Institute of Public Health, Bucharest, Romania
| | - Vladimir Bencko
- Institute of Hygiene and Epidemiology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | - Vladimír Janout
- Faculty of Health Sciences, Palacky University, Olomouc, Czech Republic
| | - Paolo Boffetta
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, New York, USA
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Bas Bueno-de-Mesquita
- Centre for Nutrition, Prevention and Health Services, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Francesco Forastiere
- Environmental Research Group, School of Public Health, Imperial College, London, UK, and National Research Council (CNR-Irib), Palermo, Italy
| | - Kurt Straif
- ISGlobal, Barcelona, Spain
- Boston College, Chestnut Hill, Massachusetts, USA
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance-Institute of the Ruhr-University Bochum (IPA), Germany
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Zou K, Sun P, Huang H, Zhuo H, Qie R, Xie Y, Luo J, Li N, Li J, He J, Aschebrook-Kilfoy B, Zhang Y. Etiology of lung cancer: Evidence from epidemiologic studies. JOURNAL OF THE NATIONAL CANCER CENTER 2022; 2:216-225. [PMID: 39036545 PMCID: PMC11256564 DOI: 10.1016/j.jncc.2022.09.004] [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: 01/25/2022] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 12/05/2022] Open
Abstract
Lung cancer is one of the leading causes of cancer incidence and mortality worldwide. While smoking, radon, air pollution, as well as occupational exposure to asbestos, diesel fumes, arsenic, beryllium, cadmium, chromium, nickel, and silica are well-established risk factors, many lung cancer cases cannot be explained by these known risk factors. Over the last two decades the incidence of adenocarcinoma has risen, and it now surpasses squamous cell carcinoma as the most common histologic subtype. This increase warrants new efforts to identify additional risk factors for specific lung cancer subtypes as well as a comprehensive review of current evidence from epidemiologic studies to inform future studies. Given the myriad exposures individuals experience in real-world settings, it is essential to investigate mixture effects from complex exposures and gene-environment interactions in relation to lung cancer and its subtypes.
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Affiliation(s)
- Kaiyong Zou
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peiyuan Sun
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huang Huang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haoran Zhuo
- Yale School of Public Health, New Haven, United States of America
| | - Ranran Qie
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuting Xie
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiajun Luo
- Department of Public Health Sciences, the University of Chicago, Chicago, United States of America
| | - Ni Li
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiang Li
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jie He
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | | | - Yawei Zhang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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8
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Loomis D, Dzhambov AM, Momen NC, Chartres N, Descatha A, Guha N, Kang SK, Modenese A, Morgan RL, Ahn S, Martínez-Silveira MS, Zhang S, Pega F. The effect of occupational exposure to welding fumes on trachea, bronchus and lung cancer: A systematic review and meta-analysis from the WHO/ILO Joint Estimates of the Work-related Burden of Disease and Injury. ENVIRONMENT INTERNATIONAL 2022; 170:107565. [PMID: 36402034 DOI: 10.1016/j.envint.2022.107565] [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: 06/29/2022] [Revised: 09/27/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND The World Health Organization (WHO) and the International Labour Organization (ILO) are the producers of the WHO/ILO Joint Estimates of the Work-related Burden of Disease and Injury (WHO/ILO Joint Estimates). Welding fumes have been classified as carcinogenic to humans (Group 1) by the WHO International Agency for Research on Cancer (IARC) in IARC Monograph 118; this assessment found sufficient evidence from studies in humans that welding fumes are a cause of lung cancer. In this article, we present a systematic review and meta-analysis of parameters for estimating the number of deaths and disability-adjusted life years from trachea, bronchus, and lung cancer attributable to occupational exposure to welding fumes, to inform the development of WHO/ILO Joint Estimates on this burden of disease (if considered feasible). OBJECTIVES We aimed to systematically review and meta-analyse estimates of the effect of any (or high) occupational exposure to welding fumes, compared with no (or low) occupational exposure to welding fumes, on trachea, bronchus, and lung cancer (three outcomes: prevalence, incidence, and mortality). DATA SOURCES We developed and published a protocol, applying the Navigation Guide as an organizing systematic review framework where feasible. We searched electronic databases for potentially relevant records from published and unpublished studies, including Medline, EMBASE, Web of Science, CENTRAL and CISDOC. We also searched grey literature databases, Internet search engines, and organizational websites; hand-searched reference lists of previous systematic reviews; and consulted additional experts. STUDY ELIGIBILITY AND CRITERIA We included working-age (≥15 years) workers in the formal and informal economy in any Member State of WHO and/or ILO but excluded children (<15 years) and unpaid domestic workers. We included randomized controlled trials, cohort studies, case-control studies, and other non-randomized intervention studies with an estimate of the effect of any (or high) occupational exposure to welding fumes, compared with occupational exposure to no (or low) welding fumes, on trachea, bronchus, and lung cancer (prevalence, incidence, and mortality). STUDY APPRAISAL AND SYNTHESIS METHODS At least two review authors independently screened titles and abstracts against the eligibility criteria at a first review stage and full texts of potentially eligible records at a second stage, followed by extraction of data from qualifying studies. If studies reported odds ratios, these were converted to risk ratios (RRs). We combined all RRs using random-effects meta-analysis. Two or more review authors assessed the risk of bias, quality of evidence, and strength of evidence, using the Navigation Guide tools and approaches adapted to this project. Subgroup (e.g., by WHO region and sex) and sensitivity analyses (e.g., studies judged to be of "high"/"probably high" risk of bias compared with "low"/"probably low" risk of bias) were conducted. RESULTS Forty-one records from 40 studies (29 case control studies and 11 cohort studies) met the inclusion criteria, comprising over 1,265,512 participants (≥22,761 females) in 21 countries in three WHO regions (Region of the Americas, European Region, and Western Pacific Region). The exposure and outcome were generally assessed by job title or self-report, and medical or administrative records, respectively. Across included studies, risk of bias was overall generally probably low/low, with risk judged high or probably high for several studies in the domains for misclassification bias and confounding. Our search identified no evidence on the outcome of having trachea, bronchus, and lung cancer (prevalence). Compared with no (or low) occupational exposure to welding fumes, any (or high) occupational exposure to welding fumes increased the risk of acquiring trachea, bronchus, and lung cancer (incidence) by an estimated 48 % (RR 1.48, 95 % confidence interval [CI] 1.29-1.70, 23 studies, 57,931 participants, I2 24 %; moderate quality of evidence). Compared with no (or low) occupational exposure to welding fumes, any (or high) occupational exposure to welding fumes increased the risk dying from trachea, bronchus, and lung cancer (mortality) by an estimated 27 % (RR 1.27, 95 % CI 1.04-1.56, 3 studies, 8,686 participants, I2 0 %; low quality of evidence). Our subgroup analyses found no evidence for difference by WHO region and sex. Sensitivity analyses supported the main analyses. CONCLUSIONS Overall, for incidence and mortality of trachea, bronchus, and lung cancer, we judged the existing body of evidence for human data as "sufficient evidence of harmfulness" and "limited evidence of harmfulness", respectively. Occupational exposure to welding fumes increased the risk of acquiring and dying from trachea, bronchus, and lung cancer. Producing estimates for the burden of trachea, bronchus, and lung cancer attributable to any (or high) occupational exposure to welding fumes appears evidence-based, and the pooled effect estimates presented in this systematic review could be used as input data for the WHO/ILO Joint Estimates. PROTOCOL IDENTIFIER: https://doi.org/10.1016/j.envint.2020.106089.
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Affiliation(s)
- Dana Loomis
- School of Community Health Sciences, University of Nevada, Reno, Reno, NV, the United States of America; Plumas County Public Health Agency, Plumas County, CA, the United States of America.
| | - Angel M Dzhambov
- Department of Hygiene, Faculty of Public Health, Medical University of Plovdiv, Plovdiv, Bulgaria; Institute for Highway Engineering and Transport Planning, Graz University of Technology, Graz, Austria.
| | - Natalie C Momen
- Department of Environment, Climate Change and Health, World Health Organization, Geneva, Switzerland.
| | - Nicholas Chartres
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, the United States of America.
| | - Alexis Descatha
- AP-HP (Paris Hospital "Assistance Publique Hôpitaux de Paris"), Occupational Health Unit, University Hospital of West Suburb of Paris, Poincaré Site, Garches, France /Versailles St-Quentin Univ - Paris Saclay Univ (UVSQ), UMS 011, UMR-S 1168, France; Univ Angers, CHU Angers, Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S1085, SFR ICAT, CAPTV CDC, Angers, France.
| | - Neela Guha
- Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland, CA, the United States of America.
| | - Seong-Kyu Kang
- Department of Occupational and Environmental Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea.
| | - Alberto Modenese
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena & Reggio Emilia, Modena, Italy.
| | - Rebecca L Morgan
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada.
| | - Seoyeon Ahn
- National Pension Research Institute, Jeonju-si, Republic of Korea.
| | | | - Siyu Zhang
- National Institute for Occupational Health and Poison Control, Center for Disease Control and Prevention, Beijing, People's Republic of China.
| | - Frank Pega
- Department of Environment, Climate Change and Health, World Health Organization, Geneva, Switzerland.
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Kendzia B, Kaerlev L, Ahrens W, Merletti F, Eriksson M, Guénel P, Lynge E, Costa-Pereira A, Morales Suárez-Varela M, Jöckel KH, Stang A, Behrens T. Lifetime Exposure to Welding Fumes and Risk of Some Rare Cancers. Am J Epidemiol 2022; 191:1753-1765. [PMID: 35872594 DOI: 10.1093/aje/kwac123] [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: 10/22/2021] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 01/29/2023] Open
Abstract
We investigated the association between exposure to welding fumes and the risk of biliary tract, male breast, bone, and thymus cancer, as well as cancer of the small intestine, eye melanoma, and mycosis fungoides, among men in a European, multicenter case-control study. From 1995-1997, 644 cases and 1,959 control subjects from 7 countries were studied with respect to information on welding and potential confounders. We linked the welding histories of the participants with a measurement-based exposure matrix to calculate lifetime exposure to welding fumes. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression models, conditional on country and 5-year age groups, and adjusted for education and relevant confounders. Regular welding was associated with an increased risk of cancer of the small intestine (OR = 2.30, 95% CI: 1.17, 4.50). Lifetime exposure to welding fumes above the median of exposed controls was associated with an increased risk of cancer of the small intestine (OR = 2.00, 95% CI: 1.07, 3.72) and male breast (OR = 2.07, 95% CI: 1.14, 3.77), and some elevation in risk was apparent for bone cancer (OR = 1.92, 95% CI: 0.85, 4.34) with increasing lifetime exposure to welding fumes. Welding fumes could contribute to an increased risk of some rare cancers.
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10
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Neighborhood disadvantage and lung cancer risk in a national cohort of never smoking Black women. Lung Cancer 2022; 173:21-27. [PMID: 36108579 PMCID: PMC9588723 DOI: 10.1016/j.lungcan.2022.08.022] [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: 07/18/2022] [Revised: 08/25/2022] [Accepted: 08/30/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Compared to women of other races who have never smoked, Black women have a higher risk of lung cancer. Whether neighborhood disadvantage, which Black women experience at higher rates than other women, is linked to never-smoking lung cancer risk remains unclear. This study investigates the association of neighborhood disadvantage and lung cancer risk in Black never-smoking women. METHODS AND MATERIALS This research utilized data from the Black Women's Health Study, a prospective cohort of 59,000 Black women recruited from across the US in 1995 and followed by biennial questionnaires. Associations of lung cancer incidence with neighborhood-level factors (including two composite variables derived from Census Bureau data: neighborhood socioeconomic status and neighborhood concentrated disadvantage), secondhand smoke exposure, and PM2.5 were estimated using Fine-Gray subdistribution hazard models. RESULTS Among 37,650 never-smokers, 77 were diagnosed with lung cancer during follow-up from 1995 to 2018. The adjusted subdistribution hazard ratio (sHR) of lung cancer incidence with ten unit increase in neighborhood concentrated disadvantage index was 1.30 (95 % CI: 1.04, 1.63, p = 0.023). Exposure to secondhand smoke at work was associated with increased risk (sHR = 1.93, 95 % CI: 1.21, 3.10, p = 0.006), but exposure to secondhand smoke at home and PM2.5 was not. CONCLUSION Worse neighborhood concentrated disadvantage was associated with increased lung cancer risk in Black women who never smoked. These findings suggest that non-tobacco-related factors in disadvantaged neighborhoods may be linked to lung cancer risk in Black women and that these factors must be understood and targeted to achieve health equity.
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11
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Distribution of Lung-RADS categories according to job type in a single shipyard workers. Ann Occup Environ Med 2021; 33:e22. [PMID: 34754483 PMCID: PMC8367747 DOI: 10.35371/aoem.2021.33.e22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/10/2021] [Indexed: 12/19/2022] Open
Abstract
Background Recently, lung cancer screenings based on age and smoking history using low-dose computed tomography (LDCT) have begun in Korea. This study aimed to evaluate the distribution of lung imaging reporting and data system (Lung-RADS) categories in shipyard workers exposed to lung carcinogens such as nickel, chromium, and welding fumes according to job type, to provide basic data regarding indications for LDCT in shipyard workers. Methods This study included 6,326 workers from a single shipyard, who underwent health examinations with LDCT between January 2010 and December 2018. Data on age, smoking status and history, medical history, and job type were investigated. The participants were categorized into high-exposure, low-exposure, and non-exposure job groups based on the estimated exposure level of nickel, chromium, and welding fumes according to job type. Cox proportional hazard regression analysis was used to determine the difference between exposure groups in Lung-RADS category ≥ 3 (3, 4A, and 4B). Results Out of all participants, 97 (1.5%) participants were classified into Lung-RADS category ≥ 3 and 7 (0.1%) participants were confirmed as lung cancer. The positive predictive value (ratio of diagnosed lung cancer cases to Lung-RADS category ≥ 3) was 7.2%. The hazard ratio (HR) of Lung-RADS category ≥ 3 was 1.451 (95% confidence interval [CI]: 0.911–2.309) in low-exposure and 1.692 (95% CI: 1.007–2.843) in high-exposure job group. Adjusting for age and pack-years, the HR was statistically significant only in the high-exposure job group (HR: 1.689; 95% CI: 1.004–2.841). Conclusions Based on LDCT and Lung-RADS, among male shipyard workers, Lung-RADS category ≥ 3 were significantly higher in the high-exposure job group. Their HR tended to be > 1.0 and was statistically significant in the high-exposure job group. Additional studies should be conducted to establish more elaborate LDCT indications for occupational health examination.
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12
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Dev M, Bhardwaj A. Respiratory symptoms and spirometric abnormalities among welders in the welding workplace of the Indian unorganized sector. Work 2021; 69:885-894. [PMID: 34180459 DOI: 10.3233/wor-213521] [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: 11/15/2022] Open
Abstract
BACKGROUND Welding is one of the most hazardous professions across the globe. Several risk factors are associated with Indian unorganized welding units such as welding gases, fumes and dust particles resulting in various respiratory health problems. OBJECTIVE The objective of the present study is to examine the prevalence of respiratory symptoms, their associated factors and lung function impairment amongst the welders of the unorganized sector in India. METHODS A cross-sectional study was conducted across 283 welders of age group 18-55 years from Punjab, India who responded to the interviewer-administrated respiratory symptoms questionnaire. Also, the lung function parameters of 50 male welders (exposed group) and 50 male non-welders (control group) working in the same environment were evaluated. RESULTS The prevalence of respiratory symptoms such as chronic cough (38.86%), phlegm (38.86%), shortness of breath (33.56%), wheezing (32.15%), chest tightness (36.40%,) and sputum (34.27%) was reported by the welders. The observed mean values of forced vital capacity (FVC), forced expiratory volume in 1s (FEV1) and FEV1/FVC ratio of welders were (3.37±0.175), (2.59±0.16) and (76.63±6.16) respectively and that of non-welders were (3.70±0.15), (3.05±0.25) and (82.49±7.62) respectively. CONCLUSIONS The welders were found to be at significant risk of developing pulmonary diseases. Long working hours, low level of education, hazardous working conditions, lack of implementation of safety laws make welders more vulnerable to health risks. The welders of Indian unorganized sector work without any technical training related to welding and safety. Proper orientation sessions about the workplace hazards and to maintain hygiene at their workplace should be organized. Welders must be provided with Personal Protective Equipment (PPE). Welders should take proper health check-up and medication to sustain healthiness.
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Affiliation(s)
- Manish Dev
- Department of Industrial and Production Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
| | - Arvind Bhardwaj
- Department of Industrial and Production Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
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13
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Shahrokhi S, Zavar Reza J, Andishmand S, Momtaz SM, Zare Sakhvidi MJ. Genotoxic evaluation and plasma oxidative stress markers in copper smelters. TOXIN REV 2021. [DOI: 10.1080/15569543.2019.1570940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Samira Shahrokhi
- Occupational Health Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Occupational Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Javad Zavar Reza
- Department of Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Biotechnology Research Center, International Campus, Shahid Sadoughi University of Medical Science, Yazd, Iran
| | - Sode Andishmand
- Department of Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Seyed Mojtaba Momtaz
- Department of Environmental Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Javad Zare Sakhvidi
- Occupational Health Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Occupational Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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14
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Shoeb M, Meier HCS, Antonini JM. Telomeres in toxicology: Occupational health. Pharmacol Ther 2021; 220:107742. [PMID: 33176178 PMCID: PMC7969441 DOI: 10.1016/j.pharmthera.2020.107742] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/03/2020] [Indexed: 12/24/2022]
Abstract
The ends of chromosomes shorten at each round of cell division, and this process is thought to be affected by occupational exposures. Occupational hazards may alter telomere length homeostasis resulting in DNA damage, chromosome aberration, mutations, epigenetic alterations and inflammation. Therefore, for the protection of genetic material, nature has provided a unique nucleoprotein structure known as a telomere. Telomeres provide protection by averting an inappropriate activation of the DNA damage response (DDR) at chromosomal ends and preventing recognition of single and double strand DNA (ssDNA and dsDNA) breaks or chromosomal end-to-end fusion. Telomeres and their interacting six shelterin complex proteins in coordination act as inhibitors of DNA damage machinery by blocking DDR activation at chromosomes, thereby preventing the occurrence of genome instability, perturbed cell cycle, cellular senescence and apoptosis. However, inappropriate DNA repair may result in the inadequate distribution of genetic material during cell division, resulting in the eventual development of tumorigenesis and other pathologies. This article reviews the current literature on the association of changes in telomere length and its interacting proteins with different occupational exposures and the potential application of telomere length or changes in the regulatory proteins as potential biomarkers for exposure and health response, including recent findings and future perspectives.
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Affiliation(s)
- Mohammad Shoeb
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States of America.
| | - Helen C S Meier
- Joseph J. Zilber School of Public Health, University of Wisconsin, Milwaukee, WI, United States of America
| | - James M Antonini
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States of America
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15
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Pega F, Chartres N, Guha N, Modenese A, Morgan RL, Martínez-Silveira MS, Loomis D. The effect of occupational exposure to welding fumes on trachea, bronchus and lung cancer: A protocol for a systematic review and meta-analysis from the WHO/ILO Joint Estimates of the Work-related Burden of Disease and Injury. ENVIRONMENT INTERNATIONAL 2020; 145:106089. [PMID: 32950789 PMCID: PMC7569600 DOI: 10.1016/j.envint.2020.106089] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 08/12/2020] [Accepted: 08/22/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND The World Health Organization (WHO) and the International Labour Organization (ILO) are developing joint estimates of the work-related burden of disease and injury (WHO/ILO Joint Estimates), with contributions from a large network of experts. Welding fumes have been classified as carcinogenic to humans (Group 1) by the International Agency for Research on Cancer (IARC); this assessment found sufficient evidence from studies in humans that welding fumes are a cause of lung cancer. In this article, we present the protocol for a systematic review of parameters for estimating the number of deaths and disability-adjusted life years from trachea, bronchus and lung cancer attributable to occupational exposure to welding fumes, to inform the development of the WHO/ILO Joint Estimates. OBJECTIVES We aim to systematically review and meta-analyse estimates of the effect of occupational exposure to welding fumes on trachea, bronchus and lung cancer, applying the Navigation Guide systematic review methodology as an organizing framework. DATA SOURCES We will search electronic bibliographic databases for potentially relevant records from published and unpublished studies, including Medline, EMBASE, Web of Science, and CISDOC. We will also search electronic grey literature databases, Internet search engines and organizational websites; hand search reference list of previous systematic reviews and included study records; and consult additional experts. STUDY ELIGIBILITY AND CRITERIA We will include working-age (≥15 years) workers in the formal and informal economy in any Member State of WHO and/or ILO but exclude children (<15 years) and unpaid domestic workers. The eligible risk factor will be occupational exposure to welding fumes, measured directly or indirectly (i.e., through proxy of relevant occupation, work task, job-exposure matrix, expert judgment or self-report). The eligible outcomes will be trachea, bronchus and lung cancer. We will include randomized controlled trials, cohort studies, case-control studies and other non-randomized intervention studies with an estimate of the relative effect of any occupational exposure to welding fumes on the prevalence of, incidence of or mortality from trachea, bronchus and lung cancer, compared with the theoretical minimum risk exposure level of no occupational exposure to welding fumes. STUDY APPRAISAL AND SYNTHESIS METHODS At least two review authors will independently screen titles and abstracts against the eligibility criteria at a first stage and full texts of potentially eligible records at a second stage, followed by extraction of data from qualifying studies. Two or more review authors will assess risk of bias and the quality of evidence, using the Navigation Guide tool or approach. If feasible, we will combine relative risks using meta-analysis. We will report results using the preferred reporting items for systematic reviews and meta-analyses guidelines (PRISMA).
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Affiliation(s)
- Frank Pega
- Department of Environment, Climate Change and Health, World Health Organization, Geneva, Switzerland.
| | - Nicholas Chartres
- Program on Reproductive Health and the Environment, University of California, San Francisco, San Francisco, CA, United States
| | - Neela Guha
- Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland, CA, United States
| | - Alberto Modenese
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena & Reggio Emilia, Modena, Italy
| | - Rebecca L Morgan
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada
| | | | - Dana Loomis
- School of Community Health Sciences, University of Nevada, Reno, Reno, NV, United States
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16
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Zeidler-Erdely PC, Falcone LM, Antonini JM, Fraser K, Kashon ML, Battelli LA, Salmen R, Trainor T, Grose L, Friend S, Yang C, Erdely A. Tumorigenic response in lung tumor susceptible A/J mice after sub-chronic exposure to calcium chromate or iron (III) oxide. Toxicol Lett 2020; 334:60-65. [PMID: 32961271 PMCID: PMC9827416 DOI: 10.1016/j.toxlet.2020.09.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/21/2020] [Accepted: 09/15/2020] [Indexed: 01/11/2023]
Abstract
Iron oxides are Group 3 (not classifiable as to its carcinogenicity to humans) according to the International Agency for Research on Cancer (IARC). Occupational exposures during iron and steel founding and hematite underground mining as well as other iron predominant exposures such as welding are Group 1 (carcinogenic to humans). The objective of this study was to investigate the potential of iron as iron (III) oxide (Fe2O3) to initiate lung tumors in A/J mice, a lung tumor susceptible strain. Male A/J mice were exposed by oropharyngeal aspiration to suspensions of Fe2O3 (1 mg) or calcium chromate (CaCrO4; 100 μg; positive control) for 26 weeks (once per week). Shams were exposed to 50 μL phosphate buffered saline (PBS; vehicle). Mice were euthanized 70 weeks after the first exposure and lung nodules were enumerated. Both CaCrO4 and Fe2O3 significantly increased gross-observed lung tumor multiplicity in A/J mice (9.63 ± 0.55 and 3.35 ± 0.30, respectively) compared to sham (2.31 ± 0.19). Histopathological analysis showed that bronchiolo-alveolar adenomas (BAA) and carcinomas (BAC) were the primary lung tumor types in all groups and were increased in the exposed groups compared to sham. BAC were significantly increased (146 %) in the CaCrO4 group and neared significance in the Fe2O3 group (100 % increase; p = 0.085). BAA and other histopathological indices of toxicity followed the same pattern with exposed groups increased compared to sham control. In conclusion, evidence from this study, in combination with our previous studies, demonstrate that exposure to iron alone may be a potential risk factor for lung carcinogenesis.
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Affiliation(s)
- Patti C Zeidler-Erdely
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States; West Virginia University, School of Medicine, Morgantown, WV, United States.
| | - Lauryn M Falcone
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States; West Virginia University, School of Medicine, Morgantown, WV, United States
| | - James M Antonini
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Kelly Fraser
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States; West Virginia University, School of Medicine, Morgantown, WV, United States
| | - Michael L Kashon
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Lori A Battelli
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Rebecca Salmen
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Taylor Trainor
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Lindsay Grose
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Sherri Friend
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Chengfeng Yang
- University of Kentucky, College of Medicine, Lexington, KY, United States
| | - Aaron Erdely
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States; West Virginia University, School of Medicine, Morgantown, WV, United States
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17
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Ketfi A, Zanoun N, Laouedj I, Gharnaout M, Fraga S. [Primary lung cancer and occupational exposure in a North African population]. Pan Afr Med J 2020; 37:120. [PMID: 33425153 PMCID: PMC7755360 DOI: 10.11604/pamj.2020.37.120.21755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 06/10/2020] [Indexed: 12/05/2022] Open
Abstract
Les cancers broncho-pulmonaires (CBP) sont parmi les cancers les plus fréquents, de pronostic redoutable, l´origine professionnelle est fréquente, mais souvent sous-estimés. L'objectif était d´évaluer la proportion des Cancers Broncho-pulmonaires (CBP) présumés d´origine professionnelle et de rechercher la relation entre la nature de l´exposition et le type histologique du CBP. Cette étude épidémiologique rétrospective, a été réalisée au service de pneumologie de l´Etablissement Public Hospitalier (EPH) de Rouïba. Entre janvier 2014 et juin 2019, nous avons colligé 357 cas atteints de CBP avec preuve histologique. Le recueil des histoires médicales et professionnelles fut effectué. Les matrices emploi-exposition ont été utilisées pour le repérage des différentes expositions professionnelles. La population d´étude comprenait 357 patients dont la moyenne d´âge était de 63,9±11,1 ans et un sex-ratio de 7,4 hommes pour une femme. Il y avait 76,5% des sujets qui fumaient ou avaient fumé en moyenne 42 P/A. Le type histologique était dans 88,8% un carcinome bronchique non à petite cellule. L'ensemble des professions étudiées seraient responsables de 50,7% des cancers bronchiques primitifs, dont 26,5% pour les professions de chauffeurs poids lourds et conducteurs d´engins. L´imputabilité des cancers broncho-pulmonaires (CBP) à l´origine professionnelle est loin d´être négligeable mais souvent méconnue; du fait du caractère multifactoriel et du temps de latence entre l´exposition et l´apparition de la maladie, avec un impact sur le type histologique du cancer broncho-pulmonaire.
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Affiliation(s)
- Abdelbassat Ketfi
- Service de Pneumologie, de Phtisiologie et d´Allergologie, Hôpital de Rouiba, Université d´Alger 1, Faculté de Médecine d´Alger, Alger, Algérie
| | - Nacima Zanoun
- Service d'Epidémiologie et de Médecine Préventive, Centre Hospitalier Universitaire Bab El Oued, Université d´Alger, Faculté de Médecine d´Alger 1, Alger, Algérie
| | - Imene Laouedj
- Service de Pneumologie, de Phtisiologie et d´Allergologie, Hôpital de Rouiba, Université d´Alger 1, Faculté de Médecine d´Alger, Alger, Algérie
| | - Merzak Gharnaout
- Service de Pneumologie, de Phtisiologie et d´Allergologie, Hôpital de Rouiba, Université d´Alger 1, Faculté de Médecine d´Alger, Alger, Algérie
| | - Seid Fraga
- Service de Médecine du Travail, Etablissement Public Hospitalier de Rouiba, Faculté de Médecine, Université d´Alger 1, Alger, Algérie
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Stanislawska M, Janasik B, Kuras R, Malachowska B, Halatek T, Wasowicz W. Assessment of occupational exposure to stainless steel welding fumes – A human biomonitoring study. Toxicol Lett 2020; 329:47-55. [DOI: 10.1016/j.toxlet.2020.04.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 04/20/2020] [Accepted: 04/23/2020] [Indexed: 11/24/2022]
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Abstract
This article covers the signal processing for a human–robot remote controlled welding application. For this purpose, a test and evaluation system is under development. It allows a skilled worker to weld in real time without being exposed to the associated physical stress and hazards. The torch movement of the welder in typical welding tasks is recorded by a stereoscopic sensor system. Due to a mismatch between the speed of the acquisition and the query rate for data by the robot control system, a prediction has to be developed. It should generate a suitable tool trajectory from the acquired data, which has to be a C 2 -continuous function. For this purpose, based on a frequency analysis, a Kalman-Filter in combination with a disturbance observer is applied. It reproduces the hand movement with sufficient accuracy and lag-free. The required algorithm is put under test on a real-time operating system based on Linux and Preempt_RT in connection to a KRC4 robot controller. By using this setup, the welding results in a plane are of good quality and the robot movement coincides with the manual movement sufficiently.
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20
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Welding Fumes, a Risk Factor for Lung Diseases. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17072552. [PMID: 32276440 PMCID: PMC7177922 DOI: 10.3390/ijerph17072552] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 12/13/2022]
Abstract
(1) Background: Welding fumes (WFs) are composed of fine and ultrafine particles, which may reach the distal airways and represent a risk factor for respiratory diseases. (2) Methods: In vitro and in vivo studies to understand WFs pathogenesis were selected. Epidemiological studies, original articles, review, and meta-analysis to examine solely respiratory disease in welders were included. A systematic literature search, using PubMed, National Institute for Occupational Safety and Health Technical Information Center (NIOSHTIC), and Web of Science databases, was performed. (3) Results: Dose, time of exposure, and composition of WFs affect lung injury. Inflammation, lung defense suppression, oxidative stress, DNA damage, and genotoxic effects were observed after exposure both to mild and stainless steel WFs. (4) Conclusions: The detection of lung diseases associated with specific occupational exposure is crucial as complete avoidance or reduction of the exposure is difficult to achieve. Further studies in the area of particle research may aid the understanding of mechanisms involved in welding-related lung disease and to expand knowledge in welding-related cardiovascular diseases.
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Pesch B, Kendzia B, Pohlabeln H, Ahrens W, Wichmann HE, Siemiatycki J, Taeger D, Zschiesche W, Behrens T, Jöckel KH, Brüning T. Exposure to Welding Fumes, Hexavalent Chromium, or Nickel and Risk of Lung Cancer. Am J Epidemiol 2019; 188:1984-1993. [PMID: 31504103 DOI: 10.1093/aje/kwz187] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 08/13/2019] [Accepted: 08/13/2019] [Indexed: 11/13/2022] Open
Abstract
To investigate the risk of lung cancer after exposure to welding fumes, hexavalent chromium (Cr(VI)), and nickel, we analyzed 3,418 lung cancer cases and 3,488 controls among men from 2 German case-control studies (1988-1996). We developed a welding-process exposure matrix from measurements of these agents, and this was linked with welding histories from a job-specific questionnaire to calculate cumulative exposure variables. Logistic regression models were fitted to estimate odds ratios with confidence intervals conditional on study, and they adjusted for age, smoking, and working in other at-risk occupations. Additionally, we mutually adjusted for the other exposure variables under study. Overall, 800 cases and 645 controls ever worked as regular or occasional welders. Odds ratios for lung cancer with high exposure were 1.55 (95% confidence interval (CI): 1.17, 2.05; median, 1.8 mg/m3 × years) for welding fumes, 1.85 (95% CI: 1.35, 2.54; median, 1.4 μg/m3 × years) for Cr(VI), and 1.60 (95% CI: 1.21, 2.12; median, 9 μg/m3 × years) for nickel. Risk estimates increased with increasing cumulative exposure to welding fumes and with increasing exposure duration for Cr(VI) and nickel. Our results showed that welding fumes, Cr(VI), and nickel might contribute independently to the excess lung cancer risk associated with welding. However, quantitative exposure assessment remains challenging.
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Kendzia B, Koppisch D, Van Gelder R, Gabriel S, Zschiesche W, Behrens T, Brüning T, Pesch B. Modelling of exposure to respirable and inhalable welding fumes at German workplaces. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2019; 16:400-409. [PMID: 30625071 DOI: 10.1080/15459624.2019.1566734] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The International Agency for Research on Cancer classified welding fumes as carcinogenic to humans, and occupational exposure limits should be established to protect welders. The aim of this study is to estimate exposure levels to inhalable and respirable welding fumes by welding process to use them for exposure assessment in epidemiological studies and to derive occupational exposure limits. In total, 15,473 mass concentrations of inhalable and 9,161 concentrations of respirable welding fumes could be analyzed along with welding-related and sampling information, which were compiled in the German database MEGA between 1983 and 2016. In both particle-size fractions, model-based geometric means of the concentrations were estimated by welding process and material for frequently used welding processes adjusted for sampling time and median-centered for calendar years. The inhalable concentrations were approximately twice the respirable concentrations, with medians of 3 mg/m3 (inter-quartile range: 1.2-7.0 mg/m3) and 1.5 mg/m3 (inter-quartile range: < limit of detection -3.8 mg/m3), respectively. The adjusted geometric means of flux-cored arc welding, metal inert and active gas welding, shielded metal arc welding and torch cutting ranged from 0.9 to 2.2 mg/m3 for respirable welding fumes and from 2.3 to 4.7 mg/m3 for inhalable fumes. In both particle-size fractions, geometric means were between 0.1 and 0.9 mg/m3 when performing tungsten inert gas, autogeneous, resistance, laser, and plasma welding or spraying. Results derived from this large dataset are useful for a quantitative exposure assessment to estimate health risks of welders.
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Affiliation(s)
- Benjamin Kendzia
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Dorothea Koppisch
- b Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA) , Sankt Augustin , Germany
| | - Rainer Van Gelder
- b Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA) , Sankt Augustin , Germany
| | - Stefan Gabriel
- b Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA) , Sankt Augustin , Germany
| | - Wolfgang Zschiesche
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Thomas Behrens
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Thomas Brüning
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Beate Pesch
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
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23
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Honaryar MK, Lunn RM, Luce D, Ahrens W, 't Mannetje A, Hansen J, Bouaoun L, Loomis D, Byrnes G, Vilahur N, Stayner L, Guha N. Welding fumes and lung cancer: a meta-analysis of case-control and cohort studies. Occup Environ Med 2019; 76:422-431. [PMID: 30948521 DOI: 10.1136/oemed-2018-105447] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 12/14/2018] [Accepted: 02/13/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND An estimated 110 million workers are exposed to welding fumes worldwide. Welding fumes are classified by the International Agency for Research on Cancer as carcinogenic to humans (group 1), based on sufficient evidence of lung cancer from epidemiological studies. OBJECTIVE To conduct a meta-analysis of case-control and cohort studies on welding or exposure to welding fumes and risk of lung cancer, accounting for confounding by exposure to asbestos and tobacco smoking. METHODS The literature was searched comprehensively in PubMed, reference lists of relevant publications and additional databases. Overlapping populations were removed. Meta-relative risks (mRRs) were calculated using random effects models. Publication bias was assessed using funnel plot, Eggers's test and Begg's test. RESULTS Forty-five studies met the inclusion criteria (20 case-control, 25 cohort/nested case-control), which reduced to 37 when overlapping study populations were removed. For 'ever' compared with 'never' being a welder or exposed to welding fumes, mRRs and 95% CIs were 1.29 (1.20 to 1.39; I2=26.4%; 22 studies) for cohort studies, 1.87 (1.53 to 2.29; I2=44.1%; 15 studies) for case-control studies and 1.17 (1.04 to 1.38; I2=41.2%) for 8 case-control studies that adjusted for smoking and asbestos exposure. The mRRs were 1.32 (95% CI 1.20 to 1.45; I2=6.3%; 15 studies) among 'shipyard welders', 1.44 (95% CI 1.07 to 1.95; I2=35.8%; 3 studies) for 'mild steel welders' and 1.38 (95% CI 0.89 to 2.13; I2=68.1%; 5 studies) among 'stainless steel welders'. Increased risks persisted regardless of time period, geographic location, study design, occupational setting, exposure assessment method and histological subtype. CONCLUSIONS These results support the conclusion that exposure to welding fumes increases the risk of lung cancer, regardless of the type of steel welded, the welding method (arc vs gas welding) and independent of exposure to asbestos or tobacco smoking.
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Affiliation(s)
- Manoj Kumar Honaryar
- International Agency for Research on Cancer, Lyon, France
- Service de médcine et addictologie, Centre Hospitalier des Quatre Villes (CH4V), Saint-Cloud et Sèvres, France
- Ecole des hautes études en santé publique (EHESP), Paris, France
| | - Ruth M Lunn
- National Institute of Environmental Health Sciences, Durham, North Carolina, USA
| | - Danièle Luce
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Pointe-à-Pitre, France
| | - Wolfgang Ahrens
- Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany
| | - Andrea 't Mannetje
- Centre for Public Health Research, Massey University, Wellington, New Zealand
| | - Johnni Hansen
- Danish Cancer Society Research Center, København, Denmark
| | | | - Dana Loomis
- International Agency for Research on Cancer, Lyon, France
- University of Nevada, Reno, Reno, Nevada, USA
| | - Graham Byrnes
- International Agency for Research on Cancer, Lyon, France
| | - Nadia Vilahur
- International Agency for Research on Cancer, Lyon, France
- European Commission, Italy
| | - Leslie Stayner
- Division of Epidemiology and Biostatistics, University of Illinois, School of Public Health, Chicago, Illinois, USA
| | - Neela Guha
- International Agency for Research on Cancer, Lyon, France
- Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland, California, USA
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Labrèche F, Kim J, Song C, Pahwa M, Ge CB, Arrandale VH, McLeod CB, Peters CE, Lavoué J, Davies HW, Nicol AM, Demers PA. The current burden of cancer attributable to occupational exposures in Canada. Prev Med 2019; 122:128-139. [PMID: 31078166 DOI: 10.1016/j.ypmed.2019.03.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Exposure to occupational carcinogens is often overlooked as a contributor to the burden of cancer. To estimate the proportion of cancer cases attributable to occupational exposure in Canada in 2011, exposure prevalence and levels of 44 carcinogens were informed by data from the Canadian carcinogen exposure surveillance project (CAREX Canada). These were used with Canadian Census (between 1961 and 2011) and Labour Force Survey (annual surveys between 1976 and 2013) data to estimate the number of workers ever exposed to occupational carcinogens. Risk estimates of the association between each carcinogen and cancer site were selected mainly from published literature reviews. Population attributable risks were estimated using Levin's equation and applied to the 2011 cancer statistics from the Canadian Cancer Registry. It is estimated that 15.5 million Canadians alive in 2011 were exposed, during at least one year between 1961 and 2001, to at least one carcinogen in the workplace. Overall, we estimated that in 2011, between 3.9% (95% CI: 3.1%-8.1%) and 4.2% (95% CI: 3.3%-8.7%) of all incident cases of cancer were due to occupational exposure, corresponding to lower and upper numbers of 7700-21,800 cases. Five of the cancer sites - mesothelioma, non-melanoma skin cancer, lung, female breast, and urinary bladder - account for a total of 7600 to 21,200 cancers attributable to occupational exposures such as solar radiation, asbestos, diesel engine exhaust, crystalline silica, and night shift work. Our study highlights cancer sites and occupational exposures that need recognition and efforts by all stakeholders to avoid preventable cancers in the future.
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Affiliation(s)
- France Labrèche
- Institut de recherche Robert-Sauvé en santé et en sécurité du travail, Montréal, Québec, Canada; School of Public Health, Université de Montréal, Montréal, Québec, Canada
| | - Joanne Kim
- Occupational Cancer Research Centre (OCRC), Cancer Care Ontario, Toronto, Ontario, Canada; Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montréal, Quebec, Canada
| | - Chaojie Song
- Occupational Cancer Research Centre (OCRC), Cancer Care Ontario, Toronto, Ontario, Canada
| | - Manisha Pahwa
- Occupational Cancer Research Centre (OCRC), Cancer Care Ontario, Toronto, Ontario, Canada
| | - Calvin B Ge
- CAREX Canada, Simon Fraser University, Burnaby, British Columbia, Canada; Institute for Risk Assessment Sciences, Universiteit Utrecht, Utrecht, the Netherlands
| | - Victoria H Arrandale
- Occupational Cancer Research Centre (OCRC), Cancer Care Ontario, Toronto, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Christopher B McLeod
- School of Population and Public Health, University of British Columbia, Vancouver, Canada; Institute for Work & Health, Toronto, Ontario, Canada
| | - Cheryl E Peters
- CAREX Canada, Simon Fraser University, Burnaby, British Columbia, Canada; Department of Cancer Epidemiology and Prevention Research, Alberta Health Services, Calgary, Alberta, Canada; Departments of Oncology and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Jérôme Lavoué
- School of Public Health, Université de Montréal, Montréal, Québec, Canada; Centre de recherche du Centre hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Hugh W Davies
- CAREX Canada, Simon Fraser University, Burnaby, British Columbia, Canada; School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Anne-Marie Nicol
- CAREX Canada, Simon Fraser University, Burnaby, British Columbia, Canada; Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Paul A Demers
- Occupational Cancer Research Centre (OCRC), Cancer Care Ontario, Toronto, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; School of Population and Public Health, University of British Columbia, Vancouver, Canada.
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25
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Falcone LM, Erdely A, Salmen R, Keane M, Battelli L, Kodali V, Bowers L, Stefaniak AB, Kashon ML, Antonini JM, Zeidler-Erdely PC. Pulmonary toxicity and lung tumorigenic potential of surrogate metal oxides in gas metal arc welding-stainless steel fume: Iron as a primary mediator versus chromium and nickel. PLoS One 2018; 13:e0209413. [PMID: 30586399 PMCID: PMC6306264 DOI: 10.1371/journal.pone.0209413] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 12/05/2018] [Indexed: 12/24/2022] Open
Abstract
In 2017, the International Agency for Research on Cancer classified welding fumes as "carcinogenic to humans" (Group 1). Both mild steel (MS) welding, where fumes lack carcinogenic chromium and nickel, and stainless steel (SS) increase lung cancer risk in welders; therefore, further research to better understand the toxicity of the individual metals is needed. The objectives were to (1) compare the pulmonary toxicity of chromium (as Cr(III) oxide [Cr2O3] and Cr (VI) calcium chromate [CaCrO4]), nickel [II] oxide (NiO), iron [III] oxide (Fe2O3), and gas metal arc welding-SS (GMAW-SS) fume; and (2) determine if these metal oxides can promote lung tumors. Lung tumor susceptible A/J mice (male, 4-5 weeks old) were exposed by oropharyngeal aspiration to vehicle, GMAW-SS fume (1.7 mg), or a low or high dose of surrogate metal oxides based on the respective weight percent of each metal in the fume: Cr2O3 + CaCrO4 (366 + 5 μg and 731 + 11 μg), NiO (141 and 281 μg), or Fe2O3 (1 and 2 mg). Bronchoalveolar lavage, histopathology, and lung/liver qPCR were done at 1, 7, 28, and 84 days post-aspiration. In a two-stage lung carcinogenesis model, mice were initiated with 3-methylcholanthrene (10 μg/g; intraperitoneal; 1x) or corn oil then exposed to metal oxides or vehicle (1 x/week for 5 weeks) by oropharyngeal aspiration. Lung tumors were counted at 30 weeks post-initiation. Results indicate the inflammatory potential of the metal oxides was Fe2O3 > Cr2O3 + CaCrO4 > NiO. Overall, the pneumotoxic effects were negligible for NiO, acute but not persistent for Cr2O3 + CaCrO4, and persistent for the Fe2O3 exposures. Fe2O3, but not Cr2O3 + CaCrO4 or NiO significantly promoted lung tumors. These results provide experimental evidence that Fe2O3 is an important mediator of welding fume toxicity and support epidemiological findings and the IARC classification.
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Affiliation(s)
- Lauryn M. Falcone
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
- West Virginia University, School of Medicine, Morgantown, West Virginia, United States of America
| | - Aaron Erdely
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
- West Virginia University, School of Medicine, Morgantown, West Virginia, United States of America
| | - Rebecca Salmen
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Michael Keane
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Lori Battelli
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Vamsi Kodali
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Lauren Bowers
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Aleksandr B. Stefaniak
- Respiratory Health Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Michael L. Kashon
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - James M. Antonini
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Patti C. Zeidler-Erdely
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
- West Virginia University, School of Medicine, Morgantown, West Virginia, United States of America
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26
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Aksu İ, Anlar HG, Taner G, Bacanlı M, İritaş S, Tutkun E, Basaran N. Assessment of DNA damage in welders using comet and micronucleus assays. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 843:40-45. [PMID: 31421737 DOI: 10.1016/j.mrgentox.2018.11.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 11/17/2018] [Accepted: 11/18/2018] [Indexed: 11/28/2022]
Abstract
Welding technology is widely used in pressurized containers, thermal power plants, refineries, chemical facilities and steel structures. Welders are exposed to a number of hazardous compounds such as ultraviolet (UV) radiation, electromagnetic fields, toxic metals and polycyclic aromatic hydrocarbons (PAHs). In the present study, 48 welders and an equal number of control subjects were evaluated for DNA damage in the whole blood and isolated lymphocytes using the comet assay. The genotoxic damage in buccal epithelial cells of subjects was determined by micronucleus (MN) assay. Metal(loids) such as Cr, Mn, Ni, Cu, As, Cd and Pb levels in blood samples were evaluated by using Inductively Coupled Plasma-Mass Spectrometer (ICP-MS). Results of this study showed that DNA damage in blood, isolated lymphocytes, and buccal epithelial cells were significantly higher in workers compared to the controls. Also, these workers had remarkably higher blood Cr, Cu, Cd, Ni and Pb levels. These results showed that occupational exposure to welding fumes may cause genotoxic damage that can lead to important health problems in the workers. More extensive epidemiological studies should be performed that enable the assessment of health risk in welding industry.
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Affiliation(s)
- İldeniz Aksu
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, 06100, Ankara, Turkey.
| | - Hatice Gül Anlar
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Bülent Ecevit University, 67600, Zonguldak, Turkey.
| | - Gökçe Taner
- Department of Bioengineering, Faculty of Natural Sciences, Architecture and Engineering, Bursa Technical University, 16190, Bursa, Turkey.
| | - Merve Bacanlı
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, 06100, Ankara, Turkey.
| | - Servet İritaş
- The Council of Forensic Medicine, Branch Office of Ankara, 06100, Ankara, Turkey.
| | - Engin Tutkun
- Bozok Univesity, Faculty of Medicine, Department of Public Health, 66200, Yozgat, Turkey.
| | - Nursen Basaran
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, 06100, Ankara, Turkey.
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Krawic C, Zhitkovich A. Toxicological Antagonism among Welding Fume Metals: Inactivation of Soluble Cr(VI) by Iron. Chem Res Toxicol 2018; 31:1172-1184. [PMID: 30362728 PMCID: PMC6247247 DOI: 10.1021/acs.chemrestox.8b00182] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 12/19/2022]
Abstract
Epidemiological studies in chromate production have established hexavalent chromium as a potent lung carcinogen. Inhalation of chromium(VI) most often occurs in mixtures with other metals as among stainless steel welders, which is the largest occupational group with Cr(VI) exposure. Surprisingly, carcinogenicity of Cr(VI)-containing welding fumes is moderate and not consistently higher than that of Cr-free welding. Here, we investigated interactions between chromate and three other metal ions [Fe(III), Mn(II), Ni(II)] that are typically released from stainless steel welding particles. In human lung epithelial cells with physiological levels of ascorbate and glutathione, Cr(VI) was by far the most cytotoxic metal in single exposures. Coexposure with Fe(III) suppressed cytotoxicity and genotoxicity of Cr(VI), which resulted from a severe inhibition of Cr uptake by cells and required extracellular ascorbate/glutathione. Chemically, detoxification of Cr(VI) occurred via its rapid extracellular reduction by Fe(II) that primarily originated from ascorbate-reduced Fe(III). Glutathione was a significant contributor to reduction of Cr(VI) by Fe only in the presence of ascorbate. We further found that variability in Cr(VI) metabolism among common cell culture media was caused by their different Fe content. Ni(II) and Mn(II) had no detectable effects on metabolism, cellular uptake or cytotoxicity of Cr(VI). The main biological findings were confirmed in three human lung cell lines, including stem cell-like and primary cells. We discovered extracellular detoxification of carcinogenic chromate in coexposures with Fe(III) ions and identified the underlying chemical mechanism. Our findings established an important case when exposure to mixtures causes inactivation of a potent human carcinogen.
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Affiliation(s)
- Casey Krawic
- Department of Pathology and Laboratory
Medicine, Brown University, 70 Ship Street, Providence, Rhode Island 02912, United States
| | - Anatoly Zhitkovich
- Department of Pathology and Laboratory
Medicine, Brown University, 70 Ship Street, Providence, Rhode Island 02912, United States
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Jung JKH, Feinstein SG, Palma Lazgare L, Macleod JS, Arrandale VH, McLeod CB, Peter A, Demers PA. Examining lung cancer risks across different industries and occupations in Ontario, Canada: the establishment of the Occupational Disease Surveillance System. Occup Environ Med 2018; 75:545-552. [DOI: 10.1136/oemed-2017-104926] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/28/2018] [Accepted: 04/19/2018] [Indexed: 01/18/2023]
Abstract
BackgroundThe Occupational Disease Surveillance System (ODSS) was established in Ontario, Canada by linking a cohort of workers with data created from Workplace Safety and Insurance Board (WSIB) claims to administrative health databases. The aim of this study was to use ODSS to identify high-risk industry and occupation groups for lung cancer in Ontario.MethodsWorkers in the WSIB lost time claims database were linked to the Ontario Cancer Registry using subjects’ health insurance numbers, name, sex, birthdate and death date (if applicable). Several occupations and industries known to be at increased risk were outlined a priori to examine whether ODSS could replicate these associations. Age-adjusted, sex-stratified Cox proportional hazard models compared the risk of lung cancer within one industry/occupation versus all other groups in the cohort. Workers with a lung cancer diagnosis prior to cohort entry were excluded for analysis, leaving 2 187 762 workers for analysis.ResultsDuring the 1983 to 2014 follow-up, 34 661 workers in the cohort were diagnosed with lung cancer. Among expected high-risk industries, elevated risks were observed among workers in quarries/sand pits and construction industries for both sexes, and among males in metal mines, iron foundries, non-metallic mineral products industries and transportation industries. Excess risk was also observed among occupations in drilling/blasting, other mining/quarrying, mineral ore treating, excavating/grading/paving, truck driving, painting, bus driving and construction.ConclusionsThis current surveillance system identified several established high-risk groups for lung cancer and could be used for ongoing surveillance of occupational lung cancer in Ontario.
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Monsé C, Hagemeyer O, Raulf M, Jettkant B, van Kampen V, Kendzia B, Gering V, Kappert G, Weiss T, Ulrich N, Marek EM, Bünger J, Brüning T, Merget R. Concentration-dependent systemic response after inhalation of nano-sized zinc oxide particles in human volunteers. Part Fibre Toxicol 2018; 15:8. [PMID: 29429408 PMCID: PMC5808398 DOI: 10.1186/s12989-018-0246-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 01/22/2018] [Indexed: 11/17/2022] Open
Abstract
Background Inhalation of high concentrations of zinc oxide particles (ZnO) may cause metal fume fever. In an earlier human inhalation study, no effects were observed after exposure to ZnO concentrations of 0.5 mg/m3. Further data from experimental studies with pure ZnO in the concentration range between 0.5 and 2.5 mg/m3 are not available. It was the aim of this experimental study to establish the concentration-response relationship of pure nano-sized ZnO particles. Methods Sixteen healthy subjects were exposed to filtered air and ZnO particles (0.5, 1.0 and 2.0 mg/m3) for 4 h on 4 different days, including 2 h of cycling with a low workload. The effects were assessed before, immediately after, and about 24 h after each exposure. Effect parameters were symptoms, body temperature, inflammatory markers and clotting factors in blood, and lung function. Results Concentration-dependent increases in symptoms, body temperature, acute phase proteins and neutrophils in blood were detected after ZnO inhalation. Significant effects were detected with ZnO concentrations of 1.0 mg/m3 or higher, with the most sensitive parameters being inflammatory markers in blood. Conclusion A concentration-response relationship with nano-sized ZnO particles in a low concentration range was demonstrated. Systemic inflammatory effects of inhaled nano-sized ZnO particles were observed at concentrations well below the occpational exposure limit for ZnO in many countries. It is recommended to reassess the exposure limit for ZnO at workplaces.
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Affiliation(s)
- Christian Monsé
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany.
| | - Olaf Hagemeyer
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Monika Raulf
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Birger Jettkant
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Vera van Kampen
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Benjamin Kendzia
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Vitali Gering
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Günther Kappert
- Gerinnungszentrum Rhein-Ruhr, Königstraße 13, 47051, Duisburg, Germany
| | - Tobias Weiss
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Nadin Ulrich
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Eike-Maximilian Marek
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Jürgen Bünger
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Rolf Merget
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
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MacLeod JS, Harris MA, Tjepkema M, Peters PA, Demers PA. Cancer Risks among Welders and Occasional Welders in a National Population-Based Cohort Study: Canadian Census Health and Environmental Cohort. Saf Health Work 2017; 8:258-266. [PMID: 28951802 PMCID: PMC5605892 DOI: 10.1016/j.shaw.2016.12.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/22/2016] [Accepted: 12/13/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Welders are exposed to many known and suspected carcinogens. An excess lung cancer risk among welders is well established, but whether this is attributable to welding fumes is unclear. Excess risks of other cancers have been suggested, but not established. We investigated welding cancer risks in the population-based Canadian Census Health and Environmental Cohort. METHODS Among 1.1 million male workers, 12,845 welders were identified using Standard Occupational Classification codes and followed through retrospective linkage of 1991 Canadian Long Form Census and Canadian Cancer Registry (1992-2010) records. Hazard ratios (HRs) were calculated using Cox proportional hazards models based on estimated risks of lung cancer, mesothelioma, and nasal, brain, stomach, kidney, and bladder cancers, and ocular melanoma. Lung cancer histological subtypes and risks by industry group and for occasional welders were examined. Some analyses restricted comparisons to blue-collar workers to minimize effects of potential confounders. RESULTS Among welders, elevated risks were observed for lung cancer [HR: 1.16, 95% confidence interval (CI): 1.03-1.31], mesothelioma (HR: 1.78, 95% CI: 1.01-3.18), bladder cancer (HR: 1.40, 95% CI: 1.15-1.70), and kidney cancer (HR: 1.30, 95% CI: 1.01-1.67). When restricted to blue-collar workers, lung cancer and mesothelioma risks were attenuated, while bladder and kidney cancer risks increased. CONCLUSION Excess risks of lung cancer and mesothelioma may be partly attributable to factors including smoking and asbestos. Welding-specific exposures may increase bladder and kidney cancer risks, and particular sources of exposure should be investigated. Studies that are able to disentangle welding effects from smoking and asbestos exposure are needed.
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Affiliation(s)
- Jill S. MacLeod
- Occupational Cancer Research Centre, Prevention and Cancer Control, Cancer Care Ontario, Toronto, Ontario, Canada
| | - M. Anne Harris
- Occupational Cancer Research Centre, Prevention and Cancer Control, Cancer Care Ontario, Toronto, Ontario, Canada
- School of Occupational and Public Health, Ryerson University, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Michael Tjepkema
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - Paul A. Peters
- Departments of Sociology and Economics, University of New Brunswick Fredericton Campus, Fredericton, New Brunswick, Canada
| | - Paul A. Demers
- Occupational Cancer Research Centre, Prevention and Cancer Control, Cancer Care Ontario, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- CAREX Canada, Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
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Wichmann HE. Epidemiology in Germany-general development and personal experience. Eur J Epidemiol 2017; 32:635-656. [PMID: 28815360 DOI: 10.1007/s10654-017-0290-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 07/27/2017] [Indexed: 12/19/2022]
Abstract
Did you ever hear about epidemiology in Germany? Starting from an epidemiological desert the discipline has grown remarkably, especially during the last 10-15 years: research institutes have been established, research funding has improved, multiple curriculae in Epidemiology and Public Health are offered. This increase has been quite steep, and now the epidemiological infrastructure is much better. Several medium-sized and even big population cohorts are ongoing, and the number and quality of publications from German epidemiologists has reached a respectable level. My own career in epidemiology started in the field of environmental health. After German reunification I concentrated for many years on environmental problems in East Germany and observed the health benefits after improvement of the situation. Later, I concentrated on population-based cohorts in newborns (GINI/LISA) and adults (KORA, German National Cohort), and on biobanking. This Essay describes the development in Germany after worldwar 2, illustrated by examples of research results and build-up of epidemiological infractructures worth mentioning.
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Affiliation(s)
- Heinz-Erich Wichmann
- Institute of Epidemiology, 2, Helmholtz Center Munich, Munich, Germany. .,Chair of Epidemiology, University of Munich, Munich, Germany.
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Wong JYY, Bassig BA, Seow WJ, Hu W, Ji BT, Blair A, Silverman DT, Lan Q. Lung cancer risk in welders and foundry workers with a history of heavy smoking in the USA: The National Lung Screening Trial. Occup Environ Med 2017; 74:440-448. [PMID: 28069970 PMCID: PMC6400285 DOI: 10.1136/oemed-2016-104168] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 11/30/2016] [Accepted: 12/19/2016] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Foundry work is a risk factor for lung cancer; however, the association with welding is unclear, as smoking is common among metalworkers and may mask the relationship. We evaluated whether history of welding and foundry work, independently and jointly, and employment duration were associated with lung cancer risk in heavy smokers. METHODS We analysed data from the National Lung Screening Trial, a prospective randomised trial of 53 454 heavy smokers (>30 pack-years) in the USA. Cox regression models were used to estimate the HRs and 95% CIs of medically/histologically confirmed incident lung cancer during the follow-up period (2002-2009) in relation to history and duration of welding and foundry work assessed via questionnaires, adjusted for screening arm, component study, sex, age, race/ethnicity, education, smoking status and pack-years, body mass index and personal/family medical history. RESULTS There were 2034 incident lung cancer cases throughout the follow-up. Increasing years of employment in welding (p-trend =0.039) and foundry work (p-trend =0.005) were related to increased lung cancer risk among heavy smokers. Having ever been employed (≥1 yr) as either a welder or foundry worker alone was associated with non-significant increased risks of lung cancer (HR=1.12 (95% CI 0.91 to 1.37) and HR=1.09 (95% CI 0.85 to 1.39), respectively). Further, there was a joint-effect in that those who were ever employed in both occupations had significantly increased risks (HR=1.48 (95% CI 1.08 to 2.04)). CONCLUSIONS Our findings provide further evidence that exposure to welding/metal fumes may be associated with elevated lung cancer risk. TRIAL REGISTRATION NUMBER NCT00047385.
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Affiliation(s)
- Jason Y Y Wong
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, Maryland, USA
| | - Bryan A Bassig
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, Maryland, USA
| | - Wei Jie Seow
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, Maryland, USA
| | - Wei Hu
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, Maryland, USA
| | - Bu-Tian Ji
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, Maryland, USA
| | - Aaron Blair
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, Maryland, USA
| | - Debra T Silverman
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, Maryland, USA
| | - Qing Lan
- Division of Cancer Epidemiology and Genetics, Occupational and Environmental Epidemiology Branch, National Cancer Institute, Rockville, Maryland, USA
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Guha N, Loomis D, Guyton KZ, Grosse Y, El Ghissassi F, Bouvard V, Benbrahim-Tallaa L, Vilahur N, Muller K, Straif K. Carcinogenicity of welding, molybdenum trioxide, and indium tin oxide. Lancet Oncol 2017; 18:581-582. [PMID: 28408286 DOI: 10.1016/s1470-2045(17)30255-3] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Neela Guha
- International Agency for Research on Cancer, Lyon, France
| | - Dana Loomis
- International Agency for Research on Cancer, Lyon, France
| | | | - Yann Grosse
- International Agency for Research on Cancer, Lyon, France
| | | | | | | | - Nadia Vilahur
- International Agency for Research on Cancer, Lyon, France
| | - Karen Muller
- International Agency for Research on Cancer, Lyon, France
| | - Kurt Straif
- International Agency for Research on Cancer, Lyon, France
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Alexander V, Sindhu KNC, Zechariah P, Resu AV, Nair SR, Kattula D, Mohan VR, Alex T RG. Occupational safety measures and morbidity among welders in Vellore, Southern India. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH 2016; 22:300-306. [PMID: 27682579 DOI: 10.1080/10773525.2016.1228287] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Welders in the unorganized occupational sector in the economically developing world are exposed to respiratory, skin, eye, ear, and neurological problems exacerbated by non-usage of personal protective equipment (PPE). OBJECTIVE To study the frequency of health problems and the usage of PPE among welders in unorganized welding units in Vellore, India. METHODS A cross-sectional survey was conducted among 150 welders to determine the frequency of skin, ear, eye, and respiratory morbidity and the usage of PPE. A group of 150 non-welders were chosen for comparison. RESULTS Significant differences in the frequency of skin burns, redness, hyper pigmentation, itching, eye injuries, and sensorineural deafness were observed among the welders and non-welders (P < 0.001). Hypertension was noted in 12.6% of the welders as compared to 0.7% among the non-welders. None of the welders used appropriate PPE. For welders, low educational attainment was associated with an increased risk of eye injury (P < 0.05, OR = 0.29). There was also a significant difference between sensorineural deafness and a welder having less than 10 years of welding work experience (P < 0.001, OR = 18.18) which could probably be accounted for by the healthy worker effect. CONCLUSION Welders in this sample experienced a significant skin, eye, and ear morbidity accentuated by the non-usage of PPE. All worked without formal training and were unaware of the safe working guidelines that exist, but are not implemented for the welders in India.
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Affiliation(s)
- Vijay Alexander
- a Department of Community Health , Christian Medical College , Vellore , India
| | | | - Pradeep Zechariah
- a Department of Community Health , Christian Medical College , Vellore , India
| | | | | | - Deepthi Kattula
- b Division of GI Sciences , Christian Medical College , Vellore , India
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Matrat M, Guida F, Mattei F, Cénée S, Cyr D, Févotte J, Sanchez M, Menvielle G, Radoï L, Schmaus A, Woronoff AS, Luce D, Stücker I. Welding, a risk factor of lung cancer: the ICARE study. Occup Environ Med 2016; 73:254-61. [PMID: 26865654 DOI: 10.1136/oemed-2015-102964] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 01/19/2016] [Indexed: 11/04/2022]
Abstract
OBJECTIVES We investigated the relationship between lung cancer and occupational exposure to welding activity in ICARE, a population-based case-control study. METHODS Analyses were restricted to men (2276 cases, 2780 controls). Welding exposure was assessed through detailed questionnaires, including lifelong occupational history. ORs were computed using unconditional logistic regression, adjusted for lifelong cigarette smoking and occupational exposure to asbestos. RESULTS Among the regular welders, welding was associated with a risk of lung cancer (OR=1.7, 95% CI 1.1 to 2.5), which increased with the duration (OR=2.0, 95% CI 1.0 to 3.9 when duration >10 years), and was maximum 10-20 years since last welding. The risk was more pronounced in case of gas welding (OR=2.0, 95% CI 1.2 to 3.3), when the workpiece was covered by paint, grease, or other substances (OR=2.0, 95% CI 1.2 to 3.4) and when it was cleaned with chemical substances before welding. No statistically significant increase in lung cancer risk was observed among occasional welders. CONCLUSIONS Although these results should be confirmed, we showed that type of welding and mode of workpiece preparation are important determinants of the lung cancer risk in regular welders.
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Affiliation(s)
- Mireille Matrat
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France Faculté de médecine, Université Paris Est Créteil, Créteil, France Centre Hospitalier Intercommunal, Service de Pneumologie et Pathologie Professionnelle, Créteil, France
| | - Florence Guida
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France
| | - Francesca Mattei
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France
| | - Sylvie Cénée
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France
| | - Diane Cyr
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France
| | - Joëlle Févotte
- Unité Mixte de Recherche Épidémiologique et de Surveillance Transport Travail Environnement (UMRESTTE), Université Claude Bernard Lyon 1, Lyon, France
| | - Marie Sanchez
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France
| | - Gwenn Menvielle
- INSERM, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France UPMC Université de la Sorbonne, Université Paris 06, UMRS 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France
| | - Loredana Radoï
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France Faculté de chirurgie dentaire, Université Paris Descartes, Montrouge, France
| | - Annie Schmaus
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France
| | - Anne-Sophie Woronoff
- Registre des tumeurs du Doubs et du territoire de Belfort, Centre Hospitalier Universitaire de Besançon, Besançon, France
| | - Danièle Luce
- INSERM U1085, IRSET, campus de Fouillole, Pointe à Pitre, Guadeloupe Université de Rennes 1, campus de Fouillole, Pointe à Pitre, Guadeloupe
| | - Isabelle Stücker
- Université Paris-Saclay, Université Paris-Sud, UVSQ, CESP, INSERM, Equipe Epidémiologie des cancers, gènes et environnement, Villejuif, France
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Raulf M, Weiss T, Lotz A, Lehnert M, Hoffmeyer F, Liebers V, Van Gelder R, Udo Käfferlein H, Hartwig A, Pesch B, Brüning T. Analysis of inflammatory markers and metals in nasal lavage fluid of welders. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2016; 79:1144-1157. [PMID: 27924706 DOI: 10.1080/15287394.2016.1221370] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Welding fumes may produce adverse health effects in the respiratory tract. To assess the relationship between exposure to welding fumes and inflammation in the upper airways, 190 male welders were examined from the WELDOX study (median age 40 yr, 54.7% smokers, and 32.9% atopics). Inhalable welding fumes were collected in the breathing zone of welders during a single shift. Chromium (Cr), nickel (Ni), manganese (Mn), and iron (Fe) were measured in the welding-fume samples and in postshift nasal lavage fluid (NALF). In addition, the numbers of particles and inflammatory biomarkers, including total and differential cell counts, interleukin (IL)-8, leukotriene (LT) B4, 8-isoprostane (8-iso-PGF2α), tissue inhibitor of metalloproteinase-1 (TIMP-1), and immunoreactive matrix metalloproteinase (MMP)-9, were determined. Metal concentrations in NALF correlated with airborne concentrations. No significant association was found between airborne metal concentrations and biomarkers of inflammation in NALF, whereas increasing metal concentrations in NALF resulted in increased concentrations of total protein, IL-8, MMP-9, and TIMP-1. LTB4 and 8-iso PGF2α were elevated at higher concentrations of Cr or Ni in NALF. The same was true for Fe, although the effects were less pronounced and of borderline significance. In conclusion, our results showed a significant association between the concentrations of metals and soluble inflammatory markers in the NALF of welders. The noninvasive collection of NALF is applicable in field studies, where it may serve as a suitable matrix to simultaneously assess biomarkers of exposure and effect in the upper respiratory tract in workers who are occupationally exposed to airborne hazardous substances.
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Affiliation(s)
- Monika Raulf
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Tobias Weiss
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Anne Lotz
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Martin Lehnert
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Frank Hoffmeyer
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Verena Liebers
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Rainer Van Gelder
- b Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA) , Sankt Augustin , Germany
| | - Heiko Udo Käfferlein
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Andrea Hartwig
- c Technische Universität Berlin, Lebensmittelchemie und Toxikologie , Berlin , Germany
- d Karlsruhe Institut für Technologie, IAB, Lebensmittelchemie und Toxikologie , Karlsruhe , Germany
| | - Beate Pesch
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
| | - Thomas Brüning
- a Institute for Prevention and Occupational Medicine of the German Social Accident Insurance , Institute of the Ruhr University Bochum (IPA) , Bochum , Germany
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Berwick M, Buller DB, Cust A, Gallagher R, Lee TK, Meyskens F, Pandey S, Thomas NE, Veierød MB, Ward S. Melanoma Epidemiology and Prevention. Cancer Treat Res 2016; 167:17-49. [PMID: 26601858 DOI: 10.1007/978-3-319-22539-5_2] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The epidemiology of melanoma is complex, and individual risk depends on sun exposure, host factors, and genetic factors, and in their interactions as well. Sun exposure can be classified as intermittent, chronic, or cumulative (overall) exposure, and each appears to have a different effect on type of melanoma. Other environmental factors, such as chemical exposures-either through occupation, atmosphere, or food-may increase risk for melanoma, and this area warrants further study. Host factors that are well known to be important are the numbers and types of nevi and the skin phenotype. Genetic factors are classified as high-penetrant genes, moderate-risk genes, or low-risk genetic polymorphisms. Subtypes of tumors, such as BRAF-mutated tumors, have different risk factors as well as different therapies. Prevention of melanoma has been attempted using various strategies in specific subpopulations, but to date optimal interventions to reduce incidence have not emerged.
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Affiliation(s)
- Marianne Berwick
- Department of Internal Medicine, University of New Mexico, MSC10-5550, Albuquerque, NM, 87131-0001, USA.
| | - David B Buller
- Klein Buendel, Inc., 1667 Cole Boulevard, Suite 225, Golden, CO, 80401, USA.
| | - Anne Cust
- Sydney School of Public Health, Sydney Medical School, University of Sydney, Level 6, 119-143 Missenden Road, Camperdown, NSW, 2050, Australia.
| | - Richard Gallagher
- Cancer Control Research Program, BC Cancer Agency, 675 West 10th Avenue, Vancouver, BC, V5Z 1L3, Canada.
| | - Tim K Lee
- Cancer Control Research Program, BC Cancer Agency, 675 West 10th Avenue, Vancouver, BC, V5Z 1L3, Canada.
| | - Frank Meyskens
- Public Health and Epidemiology, University of California, Irvine, USA.
| | - Shaily Pandey
- Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY, 10029, USA.
| | - Nancy E Thomas
- University of North Carolina, 413 Mary Ellen Jones Bldg. CB#7287, Chapel Hill, NC, 275992, USA.
| | - Marit B Veierød
- Department of Biostatistics, Institute of Basic Medical Sciences, P.O. Box 1122 Blindern, 0317, Oslo, Norway.
| | - Sarah Ward
- Centre for Genetic Origins of Health and Disease (GOHaD), The University of Western Australia, M409, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
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Li H, Hedmer M, Wojdacz T, Hossain MB, Lindh CH, Tinnerberg H, Albin M, Broberg K. Oxidative stress, telomere shortening, and DNA methylation in relation to low-to-moderate occupational exposure to welding fumes. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2015; 56:684-93. [PMID: 26013103 PMCID: PMC4755249 DOI: 10.1002/em.21958] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 05/01/2015] [Indexed: 05/27/2023]
Abstract
Evidence suggests that exposure to welding fumes is a risk factor for lung cancer. We examined relationships between low-to-moderate occupational exposure to particles from welding fumes and cancer-related biomarkers for oxidative stress, changes in telomere length, and alterations in DNA methylation. We enrolled 101 welders and 127 controls (all currently nonsmoking men) from southern Sweden. We performed personal sampling of respirable dust and measured 8-oxodG concentrations in urine using a simplified liquid chromatography tandem mass spectrometry method. Telomere length in peripheral blood was measured by quantitative polymerase chain reaction. Methylation status of 10 tumor suppressor genes was determined by methylation-sensitive high-resolution melting analysis. All analyses were adjusted for age, body mass index, previous smoking, passive smoking, current residence, and wood burning stove/boiler at home. Welders were exposed to respirable dust at 1.2 mg/m(3) (standard deviation, 3.3 mg/m(3); range, 0.1-19.3), whereas control exposures did not exceed 0.1 mg/m(3) (P < 0.001). Welders and controls did not differ in 8-oxodG levels (β = 1.2, P = 0.17) or relative telomere length (β = -0.053, P = 0.083) in adjusted models. Welders showed higher probability of adenomatous polyposis coli (APC) methylation in the unadjusted model (odds ratio = 14, P = 0.014), but this was not significant in the fully adjusted model (P = 0.052). Every working year as a welder was associated with 0.0066 units shorter telomeres (95% confidence interval -0.013 to -0.00053, P = 0.033). Although there were no clear associations between concentrations of respirable dust and the biomarkers, there were modest signs of associations between oxidative stress, telomere alterations, DNA methylation, and occupational exposure to low-to-moderate levels of particles.
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Affiliation(s)
- Huiqi Li
- Department of Laboratory Medicine, Section of Occupational and Environmental MedicineLund UniversityLundSweden
| | - Maria Hedmer
- Department of Laboratory Medicine, Section of Occupational and Environmental MedicineLund UniversityLundSweden
| | - Tomasz Wojdacz
- Institute of Environmental Medicine, Karolinska InstitutetStockholmSweden
| | - Mohammad Bakhtiar Hossain
- Department of Laboratory Medicine, Section of Occupational and Environmental MedicineLund UniversityLundSweden
| | - Christian H. Lindh
- Department of Laboratory Medicine, Section of Occupational and Environmental MedicineLund UniversityLundSweden
| | - Håkan Tinnerberg
- Department of Laboratory Medicine, Section of Occupational and Environmental MedicineLund UniversityLundSweden
| | - Maria Albin
- Department of Laboratory Medicine, Section of Occupational and Environmental MedicineLund UniversityLundSweden
| | - Karin Broberg
- Department of Laboratory Medicine, Section of Occupational and Environmental MedicineLund UniversityLundSweden
- Institute of Environmental Medicine, Karolinska InstitutetStockholmSweden
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Taeger D, Pesch B, Kendzia B, Behrens T, Jöckel KH, Dahmann D, Siemiatycki J, Kromhout H, Vermeulen R, Peters S, Olsson A, Brüske I, Wichmann HE, Stücker I, Guida F, Tardón A, Merletti F, Mirabelli D, Richiardi L, Pohlabeln H, Ahrens W, Landi MT, Caporaso N, Pesatori AC, Mukeriya A, Szeszenia-Dabrowska N, Lissowska J, Gustavsson P, Field J, Marcus MW, Fabianova E, 't Mannetje A, Pearce N, Rudnai P, Bencko V, Janout V, Dumitru RS, Foretova L, Forastiere F, McLaughlin J, Paul Demers PD, Bueno-de-Mesquita B, Schüz J, Straif K, Brüning T. Lung cancer among coal miners, ore miners and quarrymen: smoking-adjusted risk estimates from the synergy pooled analysis of case-control studies. Scand J Work Environ Health 2015; 41:467-77. [PMID: 26153779 PMCID: PMC7334050 DOI: 10.5271/sjweh.3513] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES Working in mines and quarries has been associated with an elevated lung cancer risk but with inconsistent results for coal miners. This study aimed to estimate the smoking-adjusted lung cancer risk among coal miners and compare the risk pattern with lung cancer risks among ore miners and quarrymen. METHODS We estimated lung cancer risks of coal and ore miners and quarrymen among 14 251 lung cancer cases and 17 267 controls from the SYNERGY pooled case-control study, controlling for smoking and employment in other at-risk occupations. RESULTS Ever working as miner or quarryman (690 cases, 436 controls) was associated with an elevated odds ratio (OR) of 1.55 [95% confidence interval (95% CI) 1.34-1.79] for lung cancer. Ore miners (53 cases, 24 controls) had a higher OR (2.34, 95% CI 1.36-4.03) than quarrymen (67 cases, 39 controls; OR 1.92, 95% CI 1.21-3.05) and coal miners (442 cases, 297 controls; OR 1.40, 95% CI 1.18-1.67), but CI overlapped. We did not observe trends by duration of exposure or time since last exposure. CONCLUSIONS This pooled analysis of population-based studies demonstrated an excess lung cancer risk among miners and quarrymen that remained increased after adjustment for detailed smoking history and working in other at-risk occupations. The increase in risk among coal miners were less pronounced than for ore miners or quarrymen.
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Affiliation(s)
- Dirk Taeger
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA). Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
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Pesch B, Kendzia B, Hauptmann K, Van Gelder R, Stamm R, Hahn JU, Zschiesche W, Behrens T, Weiss T, Siemiatycki J, Lavoué J, Jöckel KH, Brüning T. Airborne exposure to inhalable hexavalent chromium in welders and other occupations: Estimates from the German MEGA database. Int J Hyg Environ Health 2015; 218:500-6. [DOI: 10.1016/j.ijheh.2015.04.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/22/2015] [Accepted: 04/22/2015] [Indexed: 11/26/2022]
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Casjens S, Henry J, Rihs HP, Lehnert M, Raulf-Heimsoth M, Welge P, Lotz A, Gelder RV, Hahn JU, Stiegler H, Eisele L, Weiss T, Hartwig A, Bruning T, Pesch B. Influence of Welding Fume on Systemic Iron Status. ANNALS OF OCCUPATIONAL HYGIENE 2014; 58:1143-54. [DOI: 10.1093/annhyg/meu068] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Pesch B, Lotz A, Koch HM, Marczynski B, Casjens S, Käfferlein HU, Welge P, Lehnert M, Heinze E, Van Gelder R, Hahn JU, Behrens T, Raulf M, Hartwig A, Weiss T, Brüning T. Oxidatively damaged guanosine in white blood cells and in urine of welders: associations with exposure to welding fumes and body iron stores. Arch Toxicol 2014; 89:1257-69. [PMID: 25107450 PMCID: PMC4508371 DOI: 10.1007/s00204-014-1319-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 07/21/2014] [Indexed: 01/05/2023]
Abstract
The International Agency for Research on Cancer considers the carcinogenicity of welding fume of priority for re-evaluation. Genotoxic effects in experimental animals are still inconclusive. Here, we investigated the association of personal exposure to metals in respirable welding fumes during a working shift with oxidatively damaged guanosine in DNA of white blood cells (WBC) and in postshift urine samples from 238 welders. Medians of 8-oxo-7,8-dihydro-2′-deoxyguanosine (8-oxodGuo) were 2.35/106 dGuo in DNA of WBC and 4.33 µg/g creatinine in urine. The median of 8-oxo-7,8-dihydroguanosine (8-oxoGuo) was 7.03 µg/g creatinine in urine. The extent of both urinary parameters was higher in welders applying techniques with high particle emission rates to stainless steel than in tungsten inert gas welders (8-oxodGuo: 9.96 vs. 4.49 µg/L, 8-oxoGuo: 15.7 vs. 7.7 µg/L), but this apparent difference diminished after creatinine adjustment. We applied random intercept models to estimate the influence of airborne and systemic exposure to metals on oxidatively damaged guanosine in WBC and urine together with covariates. We observed a highly significant nonlinear association of urinary 8-oxoGuo with serum ferritin (P < 0.0001) and higher 8-oxoGuo concentrations for respirable iron >1,000 µg/m3 compared to ≤57 µg/m3. Similar effects were found for manganese. Airborne chromium but not nickel was associated with all oxidatively modified guanosine measures, whereas urinary chromium as well as nickel showed associations with urinary modified guanosines. In summary, oxidatively damaged urinary guanosine was associated with airborne and systemic exposure to metals in welders and showed a strong relation to body iron stores.
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Affiliation(s)
- Beate Pesch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
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Lehnert M, Hoffmeyer F, Gawrych K, Lotz A, Heinze E, Berresheim H, Merget R, Harth V, Van Gelder R, Hahn JU, Hartwig A, Weiß T, Pesch B, Brüning T. Effects of Exposure to Welding Fume on Lung Function: Results from the German WELDOX Study. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 834:1-13. [PMID: 25315619 DOI: 10.1007/5584_2014_65] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The association between exposure to welding fume and chronic obstructive pulmonary disease (COPD) has been insufficiently clarified. In this study we assessed the influence of exposure to welding fume on lung function parameters. We investigated forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), FEV1/FVC, and expiratory flow rates in 219 welders. We measured current exposure to respirable particles and estimated a worker's lifetime exposure considering welding techniques, working conditions and protective measures at current and former workplaces. Multiple regression models were applied to estimate the influence of exposure to welding fume, age, and smoking on lung function. We additionally investigated the duration of working as a welder and the predominant welding technique. The findings were that age- and smoking-adjusted lung function parameters showed no decline with increasing duration, current exposure level, and lifetime exposure to welding fume. However, 15% of the welders had FEV1/FVC below the lower limit of normal, but we could not substantiate the presence of an association with the measures of exposure. Adverse effects of cigarette smoking were confirmed. In conclusion, the study did not support the notion of a possible detrimental effect of exposure to welding fume on lung function in welders.
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Affiliation(s)
- M Lehnert
- Institute of Prevention and Occupational Medicine, German Social Accident Insurance (IPA), Institute of the Ruhr-University Bochum, 1 Bürkle-de-la-Camp-Platz, 44789, Bochum, Germany,
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