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Zhao S, Wang J, Zhu W. Controlled-Release Materials for Remediation of Trichloroethylene Contamination in Groundwater. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7045. [PMID: 37959642 PMCID: PMC10650286 DOI: 10.3390/ma16217045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 11/15/2023]
Abstract
Groundwater contamination by trichloroethylene (TCE) presents a pressing environmental challenge with far-reaching consequences. Traditional remediation methods have shown limitations in effectively addressing TCE contamination. This study reviews the limitations of conventional remediation techniques and investigates the application of oxidant-based controlled-release materials, including encapsulated, loaded, and gel-based potassium permanganate since the year 2000. Additionally, it examines reductant controlled-release materials and electron donor-release materials such as tetrabutyl orthosilicate (TBOS) and polyhydroxybutyrate (PHB). The findings suggest that controlled-release materials offer a promising avenue for enhancing TCE degradation and promoting groundwater restoration. This study concludes by highlighting the future research directions and the potential of controlled-release materials in addressing TCE contamination challenges.
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Affiliation(s)
- Shan Zhao
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China;
- College of Civil Engineering, Tongji University, Shanghai 200092, China
| | - Jianhua Wang
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China;
| | - Wenjin Zhu
- School of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, China
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2
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Zhang L, Ji P, Song R, Li J, Qin K, Xu G. Synergistic activation of persulfate by a manganese cobalt oxide/reduced graphene oxide nanocomposite with enhanced degradation of trichloroethylene. RSC Adv 2023; 13:28984-28992. [PMID: 37799304 PMCID: PMC10548434 DOI: 10.1039/d3ra03834c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/22/2023] [Indexed: 10/07/2023] Open
Abstract
Advanced oxidation technology based on persulfate is one of the most reliable and effective technologies for the degradation of wastewater, however the key lies in developing highly efficient catalysts to activate persulfate. Herein, manganese cobalt oxide/reduced graphene oxide (MnCo2O4/rGO) nanocomposites were successfully synthesized via a facile solvothermal method and employed as a highly efficient catalyst to active persulfate for the degradation of trichloroethylene (TCE). The rGO nanosheets have large surface areas, which can increase the contact area with reactants and make the degradation more efficient. Additionally, the MnCo2O4 nanoparticles are in situ grown on the surface of ultrathin rGO nanosheets, endowing the material with high structural porosity and fast transport channels, and are beneficial for the improvement of catalytic sites and the transport of catalysis-relevant species. More importantly, the close contact between MnCo2O4 nanoparticles and rGO nanosheets synergistically favors the electron transfer, thereby accelerating the electron transfer, improving the activation efficiency, and promoting the generation of sulfate radicals (·SO4-). rGO can also reduce the spillover of metal ions. The kinetics model and degradation mechanism of the nanocomposites are also proposed.
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Affiliation(s)
- Lu Zhang
- School of Environmental and Chemical Engineering, Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education Shanghai 200444 P. R. China
| | - Pengfei Ji
- School of Environmental and Chemical Engineering, Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
| | - Rui Song
- School of Environmental and Chemical Engineering, Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
| | - Jiayuan Li
- School of Environmental and Chemical Engineering, Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
| | - Kaifeng Qin
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education Shanghai 200444 P. R. China
| | - Gang Xu
- School of Environmental and Chemical Engineering, Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
- Key Laboratory of Organic Compound Pollution Control Engineering, Ministry of Education Shanghai 200444 P. R. China
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3
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Guth M, Coste A, Lefevre M, Deygas F, Danjou A, Ahmadi S, Dananché B, Pérol O, Boyle H, Schüz J, Bujan L, Metzler-Guillemain C, Giscard d'Estaing S, Teletin M, Ducrocq B, Frapsauce C, Olsson A, Charbotel B, Fervers B. Testicular germ cell tumour risk by occupation and industry: a French case-control study - TESTIS. Occup Environ Med 2023; 80:407-417. [PMID: 37230752 PMCID: PMC10314033 DOI: 10.1136/oemed-2022-108601] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 05/04/2023] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Testicular germ cell tumours (TGCT) are the most common cancer in men of working age and its incidence has increased notably over the past 40 years. Several occupations have been identified as potentially associated with TGCT risk. The aim of this study was to further explore the relationship between occupations, industries and TGCT risk in men aged 18-45 years. METHODS The TESTIS study is a multicenter case-control study conducted between January 2015 and April 2018 in 20 of 23 university hospital centers in metropolitan France. A total of 454 TGCT cases and 670 controls were included. Full job histories were collected. Occupations were coded according to the International Standard Classification of Occupation 1968 version (ISCO-1968) and industry according to the 1999 version of Nomenclature d'Activités Française (NAF-1999). For each job held, ORs and 95% CIs were estimated using conditional logistic regression. RESULTS A positive association was observed between TGCT and occupation as agricultural, animal husbandry worker (ISCO: 6-2; OR 1.71; 95% CI (1.02 to 2.82)), as well as salesman (ISCO: 4-51; OR 1.84; 95% CI (1.20 to 2.82)). An increased risk was further observed among electrical fitters and related, electrical and electronics workers employed for 2 years or more (ISCO: 8-5; OR≥2 years 1.83; 95% CI (1.01 to 3.32)). Analyses by industry supported these findings. CONCLUSIONS Our findings suggest that agricultural, electrical and electronics workers, and salesmen workers experience an increased risk of TGCT. Further research is needed to identify the agents or chemicals in these high-risk occupations which are relevant in the TGCT development. TRIAL REGISTRATION NUMBER NCT02109926.
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Affiliation(s)
- Margot Guth
- UMRESTTE, Université Claude Bernard Lyon 1, Lyon, France
| | - Astrid Coste
- Radiation: Defense, Health, Environment, INSERM UMR1296, Lyon, France
- Prevention Cancer Environnement Departement, Centre Léon Bérard, Lyon, France
| | - Marie Lefevre
- UMRESTTE, Université Claude Bernard Lyon 1, Lyon, France
| | | | - Aurélie Danjou
- Environment and Lifestyle Epidemiology Branch, International Agency for Research on Cancer/World Health Organization (IARC/WHO), Lyon, France
| | - Shukrullah Ahmadi
- Environment and Lifestyle Epidemiology Branch, International Agency for Research on Cancer/World Health Organization (IARC/WHO), Lyon, France
| | - Brigitte Dananché
- Prevention Cancer Environnement Departement, Centre Léon Bérard, Lyon, France
| | - Olivia Pérol
- Prevention Cancer Environnement Departement, Centre Léon Bérard, Lyon, France
| | - Helen Boyle
- Department of Medical Oncology, Centre Léon Bérard, Lyon, France
| | - Joachim Schüz
- Environment and Lifestyle Epidemiology Branch, International Agency for Research on Cancer/World Health Organization (IARC/WHO), Lyon, France
| | - Louis Bujan
- DEFE (Développement Embryonnaire, Fertilité, Environnement) INSERM 1202 Universités Montpellier et Toulouse 3, CECOS Hôpital Paule de Viguier, CHU de Toulouse, Toulouse, France
- Fédération Française des CECOS, Paris, France
| | - Catherine Metzler-Guillemain
- Fédération Française des CECOS, Paris, France
- Centre Clinico-Biologique d'AMP-CECOS, AP-HM La Conception University Hospital, Marseille, France
| | - Sandrine Giscard d'Estaing
- Fédération Française des CECOS, Paris, France
- CECOS de Lyon, Service de Médecine de la Reproduction, Hôpital Femme Mère Enfant, Bron, France
| | - Marius Teletin
- Fédération Française des CECOS, Paris, France
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch-Grafenstaden, France
| | - Berengere Ducrocq
- Fédération Française des CECOS, Paris, France
- CECOS Nord Lille, Hôpital Albert Calmette, Lille, France
| | - Cynthia Frapsauce
- Fédération Française des CECOS, Paris, France
- Médecine et Biologie de la Reproduction-CECOS, CHU Bretonneau, Tours, France
| | - Ann Olsson
- Environment and Lifestyle Epidemiology Branch, International Agency for Research on Cancer/World Health Organization (IARC/WHO), Lyon, France
| | - Barbara Charbotel
- UMRESTTE, Université Claude Bernard Lyon 1, Lyon, France
- Service des Maladies Professionnelles, Hospices Civils de Lyon, Pierre Bénite, France
| | - Béatrice Fervers
- Radiation: Defense, Health, Environment, INSERM UMR1296, Lyon, France
- Prevention Cancer Environnement Departement, Centre Léon Bérard, Lyon, France
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4
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Goldman SM, Weaver FM, Stroupe KT, Cao L, Gonzalez B, Colletta K, Brown EG, Tanner CM. Risk of Parkinson Disease Among Service Members at Marine Corps Base Camp Lejeune. JAMA Neurol 2023; 80:673-681. [PMID: 37184848 PMCID: PMC10186205 DOI: 10.1001/jamaneurol.2023.1168] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/03/2023] [Indexed: 05/16/2023]
Abstract
Importance An increased risk of Parkinson disease (PD) has been associated with exposure to the solvent trichloroethylene (TCE), but data are limited. Millions of people in the US and worldwide are exposed to TCE in air, food, and water. Objective To test whether the risk of PD is higher in veterans who served at Marine Corps Base Camp Lejeune, whose water supply was contaminated with TCE and other volatile organic compounds (VOCs), compared with veterans who did not serve on that base. Design, Setting, and Participants This population-based cohort study examined the risk for PD among all Marines and Navy personnel who resided at Camp Lejeune, North Carolina (contaminated water) (n = 172 128), or Camp Pendleton, California (uncontaminated water) (n = 168 361), for at least 3 months between 1975 and 1985, with follow-up from January 1, 1997, until February 17, 2021. Veterans Health Administration and Medicare databases were searched for International Classification of Diseases diagnostic codes for PD or other forms of parkinsonism and related medications and for diagnostic codes indicative of prodromal disease. Parkinson disease diagnoses were confirmed by medical record review. Exposures Water supplies at Camp Lejeune were contaminated with several VOCs. Levels were highest for TCE, with monthly median values greater than 70-fold the permissible amount. Main Outcome and Measures Risk of PD in former residents of Camp Lejeune relative to residents of Camp Pendleton. In those without PD or another form of parkinsonism, the risk of being diagnosed with features of prodromal PD were assessed individually and cumulatively using likelihood ratio tests. Results Health data were available for 158 122 veterans (46.4%). Demographic characteristics were similar between Camp Lejeune (5.3% women, 94.7% men; mean [SD] attained age of 59.64 [4.43] years; 29.7% Black, 6.0% Hispanic, 67.6% White; and 2.7% other race and ethnicity) and Camp Pendleton (3.8% women, 96.2% men; mean [SD] age, 59.80 [4.62] years; 23.4% Black, 9.4% Hispanic, 71.1% White, and 5.5% other race and ethnicity). A total of 430 veterans had PD, with 279 from Camp Lejeune (prevalence, 0.33%) and 151 from Camp Pendleton (prevalence, 0.21%). In multivariable models, Camp Lejeune veterans had a 70% higher risk of PD (odds ratio, 1.70; 95% CI, 1.39-2.07; P < .001). No excess risk was found for other forms of neurodegenerative parkinsonism. Camp Lejeune veterans also had a significantly increased risk of prodromal PD diagnoses, including tremor, anxiety, and erectile dysfunction, and higher cumulative prodromal risk scores. Conclusions and Relevance The study's findings suggest that the risk of PD is higher in persons exposed to TCE and other VOCs in water 4 decades ago. Millions worldwide have been and continue to be exposed to this ubiquitous environmental contaminant.
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Affiliation(s)
- Samuel M. Goldman
- Division of Occupational and Environmental Medicine, University of California, San Francisco
- San Francisco Veterans Affairs Health Care System, San Francisco, California
| | - Frances M. Weaver
- Center of Innovation for Complex Chronic Healthcare, Hines Veterans Affairs Hospital, Hines, Illinois
- Parkinson School of Health Sciences and Public Health, Loyola University, Maywood, Illinois
| | - Kevin T. Stroupe
- Center of Innovation for Complex Chronic Healthcare, Hines Veterans Affairs Hospital, Hines, Illinois
- Parkinson School of Health Sciences and Public Health, Loyola University, Maywood, Illinois
| | - Lishan Cao
- Center of Innovation for Complex Chronic Healthcare, Hines Veterans Affairs Hospital, Hines, Illinois
| | - Beverly Gonzalez
- Center of Innovation for Complex Chronic Healthcare, Hines Veterans Affairs Hospital, Hines, Illinois
| | - Kalea Colletta
- Center of Innovation for Complex Chronic Healthcare, Hines Veterans Affairs Hospital, Hines, Illinois
| | - Ethan G. Brown
- San Francisco Veterans Affairs Health Care System, San Francisco, California
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco
| | - Caroline M. Tanner
- San Francisco Veterans Affairs Health Care System, San Francisco, California
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco
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5
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Dorsey ER, Zafar M, Lettenberger SE, Pawlik ME, Kinel D, Frissen M, Schneider RB, Kieburtz K, Tanner CM, De Miranda BR, Goldman SM, Bloem BR. Trichloroethylene: An Invisible Cause of Parkinson's Disease? JOURNAL OF PARKINSON'S DISEASE 2023; 13:203-218. [PMID: 36938742 PMCID: PMC10041423 DOI: 10.3233/jpd-225047] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
The etiologies of Parkinson's disease (PD) remain unclear. Some, such as certain genetic mutations and head trauma, are widely known or easily identified. However, these causes or risk factors do not account for the majority of cases. Other, less visible factors must be at play. Among these is a widely used industrial solvent and common environmental contaminant little recognized for its likely role in PD: trichloroethylene (TCE). TCE is a simple, six-atom molecule that can decaffeinate coffee, degrease metal parts, and dry clean clothes. The colorless chemical was first linked to parkinsonism in 1969. Since then, four case studies involving eight individuals have linked occupational exposure to TCE to PD. In addition, a small epidemiological study found that occupational or hobby exposure to the solvent was associated with a 500% increased risk of developing PD. In multiple animal studies, the chemical reproduces the pathological features of PD.Exposure is not confined to those who work with the chemical. TCE pollutes outdoor air, taints groundwater, and contaminates indoor air. The molecule, like radon, evaporates from underlying soil and groundwater and enters homes, workplaces, or schools, often undetected. Despite widespread contamination and increasing industrial, commercial, and military use, clinical investigations of TCE and PD have been limited. Here, through a literature review and seven illustrative cases, we postulate that this ubiquitous chemical is contributing to the global rise of PD and that TCE is one of its invisible and highly preventable causes. Further research is now necessary to examine this hypothesis.
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Affiliation(s)
- E Ray Dorsey
- Center for Health + Technology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Maryam Zafar
- Center for Health + Technology, University of Rochester Medical Center, Rochester, NY, USA
| | | | - Meghan E Pawlik
- Center for Health + Technology, University of Rochester Medical Center, Rochester, NY, USA
| | - Dan Kinel
- Center for Health + Technology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Myrthe Frissen
- Radboud University Medical Centre; Donders Institute for Brain, Cognition and Behaviour; Department of Neurology; Centre of Expertise for Parkinson & Movement Disorders; Nijmegen, the Netherlands
| | - Ruth B Schneider
- Center for Health + Technology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Karl Kieburtz
- Center for Health + Technology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Caroline M Tanner
- Weill Institute for Neurosciences, Department of Neurology, University of California-San Francisco, San Francisco, CA, USA
| | - Briana R De Miranda
- Center for Neurodegeneration and Experimental Therapeutics, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Samuel M Goldman
- Division of Occupational and Environmental Medicine, San Francisco Veterans Affairs Health Care System, School of Medicine, University of California-San Francisco, San Francisco, CA, USA
| | - Bastiaan R Bloem
- Radboud University Medical Centre; Donders Institute for Brain, Cognition and Behaviour; Department of Neurology; Centre of Expertise for Parkinson & Movement Disorders; Nijmegen, the Netherlands
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6
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Zuo X, Liu Z, Ma J, Ding Y, Cai S, Wu C, Zhang J, Zhu Q. Wnt 5a mediated inflammatory injury of renal tubular epithelial cells dependent on calcium signaling pathway in Trichloroethylene sensitized mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 243:114019. [PMID: 36030685 DOI: 10.1016/j.ecoenv.2022.114019] [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: 02/04/2022] [Revised: 08/16/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Patients with trichloroethene-induced Trichloroethylene hypersensitivity syndrome (THS) often present kidney injury. However, the role of Wnt 5a/Ca2+ pathway in renal tubular injury in Trichloroethylene (TCE) sensitized mice remains unclear. This study aimed to investigate how Wnt 5a/Ca2+ pathway induced renal tubular epithelial cell injury in TCE sensitized mice. A total of 84 female BALB/c Specific Pathogen Free mice aged 6-8 weeks were used to establish TCE sensitized mouse models. Renal histology and serum levels of α1-MG and β2-MG were used to assess the renal injury. The renal protein levels of Wnt 5a, ROR2, FZD5, PLC, p-CaMKII, IκB α, p-IκB α, NF-κB(p65), TNF α, IL 6 and IL 1β were measured. The levels of serum α1-MG and β2-MG and TNF α, IL 6 and IL 1β levels in the kidney tissue were significantly increased in TCE sensitized positive group. However, Box5 pretreatment inhibited the expression of PLC, p-CaMKII, p65 and attenuated the injury of renal tubular epithelial cells and suppressed the upregulated expression of the above cytokines. In addition, KN93 also reduced nuclear translocation of p65 and renal injury as well as the elevated cytokines by inhibiting CaMKII. These data identify Wnt 5a binding to ROR2 and FZD5, p65 nuclear translocation, and inflammatory cytokine release as a novel mechanism for renal tubular epithelial cells injury by sensitization with TCE. Box5 or KN93 pretreatment can block the expression of inflammatory cytokines and reduce the injury of renal tubular epithelial cells.
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Affiliation(s)
- Xulei Zuo
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, PR China
| | - Zhibing Liu
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China; Key Laboratory of Dermatology, Ministry of Education, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Jinru Ma
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, PR China
| | - Yani Ding
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, PR China
| | - Shuyang Cai
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, PR China
| | - Changhao Wu
- School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Jiaxiang Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, PR China; Key Laboratory of Dermatology, Ministry of Education, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China.
| | - Qixing Zhu
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China; Key Laboratory of Dermatology, Ministry of Education, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China.
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7
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Luo YH, Long X, Wang B, Zhou C, Tang Y, Krajmalnik-Brown R, Rittmann BE. A Synergistic Platform for Continuous Co-removal of 1,1,1-Trichloroethane, Trichloroethene, and 1,4-Dioxane via Catalytic Dechlorination Followed by Biodegradation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:6363-6372. [PMID: 33881824 DOI: 10.1021/acs.est.1c00542] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Groundwater co-contaminated with 1,4-dioxane, 1,1,1-trichloroethane (TCA), and trichloroethene (TCE) is among the most urgent environmental concerns of the U.S. Department of Defense (DoD), U.S. Environmental Protection Agency (EPA), and industries related to chlorinated solvents. Inspired by the pressing need to remove all three contaminants at many sites, we tested a synergistic platform: catalytic reduction of 1,1,1-TCA and TCE to ethane in a H2-based membrane palladium-film reactor (H2-MPfR), followed by aerobic biodegradation of ethane and 1,4-dioxane in an O2-based membrane biofilm reactor (O2-MBfR). During 130 days of continuous operation, 1,1,1-TCA and TCE were 95-98% reductively dechlorinated to ethane in the H2-MPfR, and ethane served as the endogenous primary electron donor for promoting 98.5% aerobic biodegradation of 1,4-dioxane in the O2-MBfR. In addition, the small concentrations of the chlorinated intermediate from the H2-MPfR, dichloroethane (DCA) and monochloroethane (MCA), were fully biodegraded through aerobic biodegradation in the O2-MBfR. The biofilms in the O2-MBfR were enriched in phylotypes closely related to the genera Pseudonocardia known to biodegrade 1,4-dioxane.
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Affiliation(s)
- Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287 United States
| | - Xiangxing Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287 United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, Arizona 85008, United States
| | - Boya Wang
- Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287 United States
| | - Youneng Tang
- Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, United States
| | - Rosa Krajmalnik-Brown
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287 United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287 United States
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8
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Iritas SB, Dip A, Gunduzoz M, Tutkun L, Turksoy VA, Deniz S, Tekin G, Oztan O, Unlu A. Assessment of potential cardiovascular risk in trichloroethylene exposure by serum methylated arginine levels. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2021; 31:63-74. [PMID: 31232082 DOI: 10.1080/09603123.2019.1628927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
Trichloroethylene (TCE) is a widely used solvent in industrial applications and has toxic effects on various systems. Methylated arginine amino acids (eg asymmetric dimethyl arginine (ADMA), symmetric dimethyl arginine (SDMA)) cause the development of cardiovascular disease by inhibiting NO synthesis, which is considered to be heart-protector. The aim of this study is to determine the risk of cardiovascular diseases in TCE exposure by methylated arginine biomarkers. About 98 controls and 100 TCE-exposed male subjects were included in the study. Trichloroacetic acid (urinary metabolite of TCE), arginine, homoarginine, citrulline ADMA, SDMA, and N-monomethyl L-arginine (L-NMMA) levels were found significantly higher than control group (p < 0.001). The strongest correlation was found between ADMA and Trichloroacetic acid (TCA) level (r = 0.453, p < 0.01). Long-term TCE exposure, may be an important risk factor for cardiovascular diseases by increasing methylated arginine levels.
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Affiliation(s)
- Servet Birgin Iritas
- Department of Ankara Branch Directorate, The Council of Forensic Medicine , Ankara, Turkey
| | - Aybike Dip
- Department of Chemistry, The Council of Forensic Medicine , Adana, Turkey
| | - Meside Gunduzoz
- Department of Family Medicine, Ankara Occupational Diseases Hospital Ankara , Turkey
| | - Lutfiye Tutkun
- Department of Biochemistry, Yozgat Bozok University Faculty of Medicine , Yozgat, Turkey
| | - Vugar Ali Turksoy
- Department of Public Health , Yozgat Bozok University Faculty of Medicine, Yozgat, Turkey
| | - Serdar Deniz
- Unit of Community Health Center, Provincial Health Directorate , Malatya, Turkey
| | - Gulsum Tekin
- Vocational School of Health Sciences, Selcuk University , Konya, Turkey
| | - Ozgur Oztan
- Department of Medical Management, HLC Medical Center , Ankara, Turkey
| | - Ali Unlu
- Department of Biochemistry, Selcuk University Faculty of Medicine , Konya, Turkey
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9
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Yaqoob N, Bloch KM, Evans AR, Lock EA. The effect of trichloroethylene metabolites on the hepatic vitamin B12-dependent methionine salvage pathway and its relevance to increased excretion of formic acid in the rat. Toxicol Res (Camb) 2020; 9:117-126. [DOI: 10.1093/toxres/tfaa006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/31/2019] [Accepted: 02/25/2020] [Indexed: 11/13/2022] Open
Abstract
Abstract
The industrial solvent trichloroethylene (TCE) and its two major metabolites trichloroethanol (TCE-OH) and trichloroacetic acid (TCA) cause formic aciduria in male F344 rats. Prior treatment of male F344 rats with 1-aminobenzotriazole a cytochrome P450 inhibitor, followed by TCE (16mk/kg, po), completely prevented formic aciduria, but had no effect on formic acid excretion produced by TCA (8 or 16 mg/kg, po), suggesting TCA may be the proximate metabolite producing this response. Dow and Green reported an increase in the concentration of 5-methyltetrahydrofolate (5-MTHF) in the plasma of rats treated with TCE-OH, suggesting a block in the cycling of 5-MTHF to tetrahydrofolate (THF). This pathway is under the control of the vitamin B12-dependent methionine salvage pathway. We therefore treated rats with three daily doses of methylcobalamin (CH3Cbl) or hydroxocobalamin (OHCbl), a cofactor for methionine synthase, or L-methionine, followed by TCE (16 mg/kg) to determine if they could alleviate the formic aciduria. These pretreatments only partially reduced the excretion of formic acid in the urine. Although prior treatment with S-adenosyl-L-methionine had no effect on formic acid excretion. Consistent with these findings, the activity of methionine synthase in the liver of TCE-treated rats was not inhibited. Transcriptomic analysis of the liver-identified nine differential expressed genes, of note, was downregulation of Lmbrd1 involved in the conversion of vitamin B12 into CH3Cbl, a cofactor for methionine synthase. Our findings indicate that the formic aciduria produced by TCE-OH and TCA may be the result of a block in the recycling of 5-MTHF to THF, the effect on the methionine salvage pathway being a secondary response following acute exposure.
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Affiliation(s)
- Noreen Yaqoob
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
| | - Katarzyna M Bloch
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
| | - Andrew R Evans
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
| | - Edward A Lock
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
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10
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Horzmann KA, Portales AM, Batcho KG, Freeman JL. Developmental toxicity of trichloroethylene in zebrafish (Danio rerio). ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:728-739. [PMID: 31989135 DOI: 10.1039/c9em00565j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Trichloroethylene (TCE), an industrial solvent and degreaser, is an environmental toxicant that contaminates over half of Superfund sites, is a known carcinogen, and is linked to congenital defects and neurodegenerative disease. The developmental toxicity of TCE near ecologically relevant levels needs further characterization in order to better assess health risks of exposure. In this study, the toxicodynamics of TCE in the zebrafish (Danio rerio) model was investigated through the establishment of a LC50 concentration and by monitoring the acute developmental toxicity of ecologically relevant concentrations (0, 5, 50, and 500 parts per billion; ppb) of TCE during two different exposure lengths (1-72 hours post fertilization (hpf) and 1-120 hpf). Acute developmental toxicity was assessed by monitoring survival and hatching, larval morphology, larval heart rate, and behavioral responses during an embryonic photomotor response test and a larval visual motor response test. Embryonic exposure to TCE was associated with decreased percent hatch at 48 hpf, altered larval morphology, increased heart rate, and altered behavioral responses during the photomotor response test and visual motor response test. Larval morphology and behavioral alterations were more pronounced in the 1-120 hpf exposure length trials. The observed alterations suggest developmental TCE toxicity is still a concern at regulatory concentrations and that timing of exposure influences developmental toxicity.
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Affiliation(s)
- Katharine A Horzmann
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA.
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11
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Li P, Zhang Y, Meng Q, Liu Y, Tuyiringire D, Chen Z, Liang S. Effects of trichloroethylene stress on the microbiological characteristics of Mollisol. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109595. [PMID: 31470249 DOI: 10.1016/j.ecoenv.2019.109595] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 08/17/2019] [Accepted: 08/20/2019] [Indexed: 06/10/2023]
Abstract
Trichloroethylene (TCE), one of 129 kinds of priority pollutants, is the most common halogenated organic pollutant in the environment. To explore the changes in soil physicochemical properties and biological activities then clarify the effects of these factors on bacterial, fungal and actinomycetes communities in Mollisol under TCE stress is the significance of our research. The results indicated that when TCE concentration was greater than 10 mg kg-1, soil quality declined and soil decomposition of organic matter and cycling of mineral nutrients were inhibited through an effect on soil microbial biomass. Operational taxonomic units (OTUs) richness of the bacteria in Mollisol was altered by TCE contamination. The SChao1 and HShannon indices of bacterial communities in Mollisol decreased when 40 mg kg-1 TCE was applied. Meanwhile, the OTU richness of fungi in Mollisol was altered by TCE contamination. The HShannon indices of the fungal communities in Mollisol were inhibited by higher TCE concentrations (20 and 40 mg kg-1 TCE). TCE altered the content of some bacteria, fungi and actinomycetes involved in soil carbon and nitrogen cycling and metabolism, such as Acidobacteria, Proteobacteria, Planctomycetes, Chytridiomycota, Streptomycetales, Pseudonocardiales, Propionibacteriales and Rhizobiales, and thus influenced nutrient cycling and the process of energy metabolism in Mollisol. In addition, redundancy analysis (RDA) results indicated that physicochemical properties and biological activities under TCE contamination significantly affected soil microbial community composition thus confirming that TCE interfered with the carbon and nitrogen cycling and metabolism of soil microorganisms. The results of this study are of great importance for revealing the effects of TCE stress on the microbiological characteristics of Mollisol, and also provide more useful information for determining the potential ecological risk of organic pollutants in Mollisol.
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Affiliation(s)
- Pengfei Li
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China.
| | - Ying Zhang
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China.
| | - Qingjuan Meng
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Ying Liu
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Diogene Tuyiringire
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Zhaobo Chen
- College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian, 116600, China
| | - Shichao Liang
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
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12
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DeSesso JM, Coder PS, York RG, Budinsky RA, Pottenger LH, Sen S, Lucarell JM, Bevan C, Bus JS. Trichloroethylene in drinking water throughout gestation did not produce congenital heart defects in Sprague Dawley rats. Birth Defects Res 2019; 111:1217-1233. [PMID: 31197966 PMCID: PMC7432160 DOI: 10.1002/bdr2.1531] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 04/23/2019] [Accepted: 05/09/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Trichloroethylene (TCE) was negative for developmental toxicity after inhalation and oral gavage exposure of pregnant rats but fetal cardiac defects were reported following drinking water exposure throughout gestation. Because of the deficiencies in this latter study, we performed another drinking water study to evaluate whether TCE causes heart defects. METHODS Groups of 25 mated Sprague Dawley rats consumed water containing 0, 0.25, 1.5, 500, or 1,000 ppm TCE from gestational day 1-21. TCE concentrations were measured at daily formulation, when placed into water bottles each day and when water bottles were removed from cages. Four additional mated rats per group were used for plasma measurements. At termination, fetal hearts were carefully dissected fresh and examined. RESULTS All TCE concentrations were >90% of target when initially placed in water bottles and when bottles were placed on cages. All dams survived with no clinical signs. Rats in the two higher dose groups consumed less water/day than other groups but showed no changes in maternal or fetal weights. The only fetal cardiac observation was small (<1 mm) membranous ventricular septal defect occurring in all treated and water control groups; incidences were within the range of published findings for naive animals. TCE was not detected in maternal blood, but systemic exposure was confirmed by detecting its primary oxidative metabolite, trichloroacetic acid, although only at levels above the quantitation limit in the two higher dose groups. CONCLUSIONS Ingesting TCE in drinking water ≤1,000 ppm throughout gestation does not cause cardiac defects in rat offspring.
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Affiliation(s)
- John M. DeSesso
- ExponentAlexandriaVirginia
- Georgetown University School of MedicineWashingtonDistrict of Columbia
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13
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He CB, Pan KL, Chang MB. Catalytic oxidation of trichloroethylene from gas streams by perovskite-type catalysts. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:11584-11594. [PMID: 29429106 DOI: 10.1007/s11356-018-1440-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 01/30/2018] [Indexed: 06/08/2023]
Abstract
Three perovskite-type catalysts including LaMnO3, La0.8Ce0.2MnO3, and La0.8Ce0.2 Mn0.8Ni0.2O3 are prepared using citric acid sol-gel method and evaluated as catalyst for the oxidation of trichloroethylene (TCE) in air with temperature ranging from 100 to 600 °C. The physicochemical properties of three perovskite-type catalysts were characterized by SEM, EDS, XRD, BET, and XPS to investigate the relationship with catalytic activities. The results show that the removal efficiency of TCE achieved with La0.8Ce0.2Mn0.8Ni0.2O3 (the best one) reaches 100% at 400 °C and the mineralization efficiency reaches 100% at 600 °C. The enhanced activity can be attributed to the addition of Ce and Ni which increases the surface areas, active oxygen species, and the redox ability of the Mn4+/Mn3+ ratio on the catalyst surface. As La0.8Ce0.2Mn0.8Ni0.2O3 is applied for TCE oxidation, the main intermediate chlorinated byproduct detected is tetrachloroethylene (C2Cl4) which is generated by the reaction of TCE and chlorine (Cl2). The activation energy for the TCE oxidation with La0.8Ce0.2Mn0.8Ni0.2O3 catalyst is 51 kJ/mol using kinetic models of power-law type.
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Affiliation(s)
- Cheng Bin He
- Graduate Institute of Environmental Engineering, National Central University, No.300, Jhongda Road, Jhongli District, Taoyuan City, 32001, Taiwan
| | - Kuan Lun Pan
- Graduate Institute of Environmental Engineering, National Central University, No.300, Jhongda Road, Jhongli District, Taoyuan City, 32001, Taiwan
| | - Moo Been Chang
- Graduate Institute of Environmental Engineering, National Central University, No.300, Jhongda Road, Jhongli District, Taoyuan City, 32001, Taiwan.
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14
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Callahan CL, Stewart PA, Friesen MC, Locke S, De Roos AJ, Cerhan JR, Severson RK, Rothman N, Purdue MP. Case-control investigation of occupational exposure to chlorinated solvents and non-Hodgkin's lymphoma. Occup Environ Med 2018; 75:415-420. [PMID: 29588333 PMCID: PMC10364142 DOI: 10.1136/oemed-2017-104890] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 02/08/2018] [Accepted: 03/13/2018] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Although many studies have investigated the association between trichloroethylene (TCE) exposure and non-Hodgkin's lymphoma (NHL), less is known about other chlorinated solvents. We extended our previous analysis of occupational TCE exposure in a multicentre population-based case-control study of NHL to investigate associations with five additional chlorinated solvents: 1,1,1,-trichloroethane, carbon tetrachloride, chloroform, methylene chloride and perchloroethylene. METHODS Cases (n=1189) and controls (n=982) provided detailed information on their occupational histories and workplace exposure to chlorinated solvents for selected occupations using job-specific interview modules. An industrial hygienist used this information and a review of the literature to assess occupational exposure to chlorinated solvents. We computed ORs and 95% CIs for different exposure metrics, with the unexposed group as the referent. We also computed ORs by NHL subtype. RESULTS High cumulative hours exposed to carbon tetrachloride was associated with NHL (>520 hours: OR 1.9; 95% CI 1.0 to 3.6; Ptrend=0.04). This association remained after restricting to jobs with high-intensity exposure (OR 2.0; 95% CI 1.1 to 3.8; P=0.03) and ≥90% exposure probability (OR 2.1; 95% CI 1.0 to 4.3; P=0.03), adjusting for TCE (OR 2.1; 95% CI 1.0- to 4.1; P=0.04) and incorporating a 15-year lag (OR 1.9; 95% CI 1.0 to 3.6; P=0.06). The other evaluated chlorinated solvents were not associated with NHL. CONCLUSIONS This is the first study using high-quality quantitative exposure assessment methods to identify a statistically significant elevated association between occupational exposure to carbon tetrachloride and NHL. Our findings, although limited by a small number of exposed cases, offer evidence that carbon tetrachloride may be a lymphomagen.
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Affiliation(s)
- Catherine L Callahan
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
| | | | - Melissa C Friesen
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
| | - Sarah Locke
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
| | - Anneclaire J De Roos
- Department of Environmental and Occupational Health, Drexel University School of Public Health, Philadelphia, Pennsylvania, USA
| | - James R Cerhan
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, USA
| | - Richard K Severson
- Department of Family Medicine and Public Health Sciences, Wayne State University, Detroit, Michigan, USA
| | - Nathaniel Rothman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
| | - Mark P Purdue
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
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15
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Tachachartvanich P, Sangsuwan R, Ruiz HS, Sanchez SS, Durkin KA, Zhang L, Smith MT. Assessment of the Endocrine-Disrupting Effects of Trichloroethylene and Its Metabolites Using in Vitro and in Silico Approaches. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:1542-1550. [PMID: 29294279 PMCID: PMC6290898 DOI: 10.1021/acs.est.7b04832] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Trichloroethylene (TCE) is a ubiquitous environmental contaminant, which may have effects on both ecosystem and human health. TCE has been reported to cause several toxic effects, but little effort has been made to assess the ecological risks of TCE or its major metabolites: trichloroethanol (TCOH), trichloroacetic acid, and oxalic acid (OA). In this study, the endocrine-disrupting potential of TCE and its metabolites were investigated using in vitro and in silico approaches. We examined alterations in the steroidogenesis pathway using the NCI-H295R cell line and utilized receptor-mediated luciferase reporter cell lines to identify effects on estrogen and androgen receptors. Molecular docking was also used to explore chemical interactions with these receptors. All test chemicals except OA significantly increased 17β-estradiol production which can be attributed to an up-regulation of 17β-hydroxysteroid dehydrogenase. Moreover, TCOH exhibited significant antiestrogenic activity with a RIC20 (20% relative inhibitory concentration) of 3.7 × 10-7 M. Molecular docking simulation supported this finding with lower docking scores for TCOH, indicating that hydrogen bonds may stabilize the interaction between TCOH and the estrogen receptor binding pocket. These findings suggest that TCE contamination poses an endocrine-disrupting threat, which has implications for both ecological and human health.
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Affiliation(s)
- Phum Tachachartvanich
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Rapeepat Sangsuwan
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Heather S. Ruiz
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Sylvia S. Sanchez
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Kathleen A. Durkin
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Martyn T. Smith
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
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16
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Dumas O, Despreaux T, Perros F, Lau E, Andujar P, Humbert M, Montani D, Descatha A. Respiratory effects of trichloroethylene. Respir Med 2017; 134:47-53. [PMID: 29413507 DOI: 10.1016/j.rmed.2017.11.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 11/07/2017] [Accepted: 11/28/2017] [Indexed: 12/12/2022]
Abstract
Trichloroethylene (TCE) is a chlorinated solvent that has been used widely around the world in the twentieth century for metal degreasing and dry cleaning. Although TCE displays general toxicity and is classified as a human carcinogen, the association between TCE exposure and respiratory disorders are conflicting. In this review we aimed to systematically evaluate the current evidence for the respiratory effects of TCE exposure and the implications for the practicing clinician. There is limited evidence of an increased risk of lung cancer associated with TCE exposure based on animal and human data. However, the effect of other chlorinated solvents and mixed solvent exposure should be further investigated. Limited data are available to support an association between TCE exposure and respiratory tract disorders such as asthma, chronic bronchitis, or rhinitis. The most consistent data is the association of TCE with autoimmune and vascular diseases such as systemic sclerosis and pulmonary veno-occlusive disease. Although recent data are reassuring regarding the absence of an increased lung cancer risk with TCE exposure, clinicians should be aware of other potential respiratory effects of TCE. In particular, occupational exposure to TCE has been linked to less common conditions such as systemic sclerosis and pulmonary veno-occlusive disease.
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Affiliation(s)
- Orianne Dumas
- Inserm, U1168, VIMA: Aging and Chronic Diseases, Epidemiological and Public Health Approaches, F-94807, Villejuif, France; Univ Versailles St-Quentin-en-Yvelines, UMR-S 1168, F-78180, Montigny le Bretonneux, France
| | - Thomas Despreaux
- Inserm, U1168, VIMA: Aging and Chronic Diseases, Epidemiological and Public Health Approaches, F-94807, Villejuif, France; Univ Versailles St-Quentin-en-Yvelines, UMR-S 1168, F-78180, Montigny le Bretonneux, France; AP-HP UVSQ, Occupational Health Unit/Population-Based Epidemiological Cohorts Unit, UMS 011, University Hospital of Poincaré, Garches, France
| | - Frédéric Perros
- Univ. Paris-Sud, Faculté de Médecine, Le Kremlin Bicêtre, F-94270, France; AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Le Kremlin Bicêtre, F-94270, France; UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire D'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Centre Chirurgical Marie Lannelongue, Le Plessis Robinson, F-92350, France
| | - Edmund Lau
- Sydney Medical School, University of Sydney, Camperdown, NSW 2050, Australia
| | - Pascal Andujar
- CHI Créteil, Service de Pneumologie et Pathologie Professionnelle, F-94000, Creteil, France
| | - Marc Humbert
- Univ. Paris-Sud, Faculté de Médecine, Le Kremlin Bicêtre, F-94270, France; AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Le Kremlin Bicêtre, F-94270, France; UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire D'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Centre Chirurgical Marie Lannelongue, Le Plessis Robinson, F-92350, France
| | - David Montani
- Univ. Paris-Sud, Faculté de Médecine, Le Kremlin Bicêtre, F-94270, France; AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Le Kremlin Bicêtre, F-94270, France; UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire D'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Centre Chirurgical Marie Lannelongue, Le Plessis Robinson, F-92350, France
| | - Alexis Descatha
- Inserm, U1168, VIMA: Aging and Chronic Diseases, Epidemiological and Public Health Approaches, F-94807, Villejuif, France; Univ Versailles St-Quentin-en-Yvelines, UMR-S 1168, F-78180, Montigny le Bretonneux, France; AP-HP UVSQ, Occupational Health Unit/Population-Based Epidemiological Cohorts Unit, UMS 011, University Hospital of Poincaré, Garches, France.
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17
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De La Rosa VY, Asfaha J, Fasullo M, Loguinov A, Li P, Moore LE, Rothman N, Nakamura J, Swenberg JA, Scelo G, Zhang L, Smith MT, Vulpe CD. Editor's Highlight: High-Throughput Functional Genomics Identifies Modulators of TCE Metabolite Genotoxicity and Candidate Susceptibility Genes. Toxicol Sci 2017; 160:111-120. [PMID: 28973557 PMCID: PMC5837773 DOI: 10.1093/toxsci/kfx159] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Trichloroethylene (TCE), an industrial chemical and environmental contaminant, is a human carcinogen. Reactive metabolites are implicated in renal carcinogenesis associated with TCE exposure, yet the toxicity mechanisms of these metabolites and their contribution to cancer and other adverse effects remain unclear. We employed an integrated functional genomics approach that combined functional profiling studies in yeast and avian DT40 cell models to provide new insights into the specific mechanisms contributing to toxicity associated with TCE metabolites. Genome-wide profiling studies in yeast identified the error-prone translesion synthesis (TLS) pathway as an import mechanism in response to TCE metabolites. The role of TLS DNA repair was further confirmed by functional profiling in DT40 avian cell lines, but also revealed that TLS and homologous recombination DNA repair likely play competing roles in cellular susceptibility to TCE metabolites in higher eukaryotes. These DNA repair pathways are highly conserved between yeast, DT40, and humans. We propose that in humans, mutagenic TLS is favored over homologous recombination repair in response to TCE metabolites. The results of these studies contribute to the body of evidence supporting a mutagenic mode of action for TCE-induced renal carcinogenesis mediated by reactive metabolites in humans. Our approach illustrates the potential for high-throughput in vitro functional profiling in yeast to elucidate toxicity pathways (molecular initiating events, key events) and candidate susceptibility genes for focused study.
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Affiliation(s)
- Vanessa Y. De La Rosa
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, California 94720
| | - Jonathan Asfaha
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, California 94720
| | - Michael Fasullo
- Colleges of Nanoscale Science and Engineering, State University of New York Polytechnic Institute, Albany, New York 12205
| | - Alex Loguinov
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, California 94720
| | - Peng Li
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Lee E. Moore
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Jun Nakamura
- Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | | | - Ghislaine Scelo
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California 94720
| | - Martyn T. Smith
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California 94720
| | - Chris D. Vulpe
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, California 94720
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18
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Potential immunotoxic effects of trichloroethylene-induced IV allergic reaction in renal impairment. Cent Eur J Immunol 2017; 42:140-149. [PMID: 28867961 PMCID: PMC5573886 DOI: 10.5114/ceji.2017.69354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 08/11/2016] [Indexed: 01/12/2023] Open
Abstract
Trichloroethylene (TCE) is known to induce allergic contact dermatitis and subsequent occupational medicamentosa-like dermatitis (OMLD) with multi-system injuries, including liver, kidney, and skin injuries. However, the mechanisms underlying immune system dysfunction that result in organ injury have not yet been clearly elucidated. In the present study, we measured the levels of secreted cytokines by effect or T cells in TCE-treated guinea pigs to better understand the contribution of allergic disorders in renal injuries. We immunized guinea pigs with trichloroethylene using the Guinea Pig Maximization Test (GPMT) and scored the inflammation on the guinea pigs' skin. The kidney function and ultra-structural changes in the kidneys were detected using biochemical methods and electron microscopy. The deposition of cytokines was determined using immunohistochemistry. The sensitization rate was 63.16% in the TCE-sensitized groups. The electron microscopy results showed tubular epithelial cell mitochondrial swelling, vacuolar degeneration, and atrophy of the microvillus in the sensitized groups. A high degree of cytokine deposition was observed in the renal tubular proximal epithelial cells in the TCE-sensitized groups. As observed in this study, the variation in the level of immune system activation not only indicates that TCE can largely magnify the immune reaction but also suggests a potential role of immune dysfunction in renal impairment.
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19
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Bauman YI, Shorstkaya YV, Mishakov IV, Plyusnin PE, Shubin YV, Korneev DV, Stoyanovskii VO, Vedyagin AA. Catalytic conversion of 1,2-dichloroethane over Ni-Pd system into filamentous carbon material. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.11.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Dopart PJ, Friesen MC. New Opportunities in Exposure Assessment of Occupational Epidemiology: Use of Measurements to Aid Exposure Reconstruction in Population-Based Studies. Curr Environ Health Rep 2017; 4:355-363. [PMID: 28695485 PMCID: PMC5693667 DOI: 10.1007/s40572-017-0153-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Exposure assessment efforts in population-based studies are increasingly incorporating measurements. The published literature was reviewed to identify the measurement sources and the approaches used to incorporate measurements into these efforts. RECENT FINDINGS The variety of occupations and industries in these studies made collecting participant-specific measurements impractical. Thus, the starting point was often the compilation of large databases of measurements from inspections, published literature, and other exposure surveys. These measurements usually represented multiple occupations, industries, and worksites, and spanned multiple decades. Measurements were used both qualitatively and quantitatively, dependent on the coverage and quality of the data. Increasingly, statistical models were used to derive job-, industry-, time period-, and other determinant-specific exposure concentrations. Quantitative measurement-based approaches are increasingly replacing expert judgment, which facilitates the development of quantitative exposure-response associations. Evaluations of potential biases in these measurement sources, and their representativeness of typical exposure situations, warrant additional examination.
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Affiliation(s)
- Pamela J Dopart
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD, 20850, USA
| | - Melissa C Friesen
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD, 20850, USA.
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21
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Barul C, Fayossé A, Carton M, Pilorget C, Woronoff AS, Stücker I, Luce D. Occupational exposure to chlorinated solvents and risk of head and neck cancer in men: a population-based case-control study in France. Environ Health 2017; 16:77. [PMID: 28738894 PMCID: PMC5525363 DOI: 10.1186/s12940-017-0286-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/11/2017] [Indexed: 05/27/2023]
Abstract
BACKGROUND Few epidemiological studies have investigated the link between occupational exposure to solvents and head and neck cancer risk, and available findings are sparse and inconsistent. The objective of this study was to examine the association between occupational exposure to chlorinated solvents and head and neck cancer risk. METHODS We analyzed data from 4637 men (1857 cases and 2780 controls) included in a population-based case-control study, ICARE (France). Occupational exposure to five chlorinated solvents (perchloroethylene [PCE], trichloroethylene [TCE], methylene chloride [MC], chloroform [CF], and carbon tetrachloride [CT]) was assessed through job-exposure matrices. Odds ratios (ORs) and confidence intervals (95% CI) were estimated by unconditional logistic regression, adjusted for age, tobacco smoking, alcohol consumption, asbestos exposure, and other potential confounders. RESULTS We observed no association between chlorinated solvent exposure and head and neck cancer risk, despite a non-significant increase in risk among subjects who had the highest cumulative level of exposure to PCE, (OR = 1.81; 95% CI = 0.68 to 4.82). In subsite analysis, the risk of laryngeal cancer increased with cumulative exposure to PCE (p for trend = 0.04). The OR was 3.86 (95% CI = 1.30 to 11.48) for those exposed to the highest levels of PCE. A non-significant elevated risk of hypopharyngeal cancer was also observed in subjects exposed to the highest levels of MC (OR = 2.36; 95% CI = 0.98 to 5.85). CONCLUSION Our findings provide evidence that high exposure to PCE increases the risk of laryngeal cancer, and suggest an association between exposure to MC and hypopharyngeal cancer. Exposure to other chlorinated solvents was not associated with the risk of head and neck cancer.
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Affiliation(s)
- Christine Barul
- INSERM U 1085, Institut de Recherche en Santé, Environnement et Travail (IRSET), Pointe-à-Pitre, France
- Paris Saclay University, Villejuif, France
| | - Aurore Fayossé
- INSERM U 1085, Institut de Recherche en Santé, Environnement et Travail (IRSET), Pointe-à-Pitre, France
| | - Matthieu Carton
- INSERM, Population-based Epidemiologic Cohorts Unit, UMS 011 Villejuif, France
| | - Corinne Pilorget
- The French Public Health Agency, Saint Maurice, France
- Univ Lyon, Claude Bernard Lyon1 University, Ifsttar, UMRESTTE, UMR T_9405, F-69373 Lyon, France
| | - Anne-Sophie Woronoff
- Registre des tumeurs du Doubs et du Territoire de Belfort CHRU, Besançon, France
| | - Isabelle Stücker
- Paris Saclay University, Villejuif, France
- INSERM, CESP Centre for Research in Epidemiology and Population Health, Environmental Epidemiology of Cancer Team, Villejuif, France
| | - Danièle Luce
- INSERM U 1085, Institut de Recherche en Santé, Environnement et Travail (IRSET), Pointe-à-Pitre, France
- Address: INSERM U1085-IRSET, Faculté de Médecine, Campus de Fouillole, BP-145, 97154 Pointe-à-Pitre, France
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Johnson CY, Rocheleau CM, Hein MJ, Waters MA, Stewart PA, Lawson CC, Reefhuis J. Agreement between two methods for retrospective assessment of occupational exposure intensity to six chlorinated solvents: Data from The National Birth Defects Prevention Study. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2017; 14:389-396. [PMID: 28388335 DOI: 10.1080/15459624.2016.1269177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The wide variety of jobs encountered in population-based studies makes retrospective exposure assessment challenging in occupational epidemiology. In this analysis, two methods for estimating exposure intensity to chlorinated solvents are compared: rated (assigned by an expert rater) and modeled (assigned using statistical models). Estimates of rated and modeled intensities were compared for jobs held by mothers participating in the National Birth Defects Prevention Study with possible exposure to six chlorinated solvents: carbon tetrachloride, chloroform, methylene chloride, perchloroethylene, 1,1,1-trichloroethane, and trichloroethylene. For each possibly exposed job, an industrial hygienist assigned (1) an exposure intensity (rated intensity) and (2) determinants of exposure to be used in a statistical model of exposure intensity (modeled intensity). Of 12,326 reported jobs, between 31 (0.3%) and 746 (6%) jobs were rated as possibly exposed to each of the six solvents. Agreement between rated and modeled intensities was low overall (Spearman correlation coefficient range: -0.09 to 0.28; kappa range: -0.23 to 0.43). Although no air measurements were available to determine if rated or modeled estimates were more accurate, review of participants' job titles showed that modeled estimates were often unexpectedly high given the low-exposure tasks found in these jobs. Differences between the high-exposure jobs used to create the statistical models (obtained from air measurements in the published literature) and the low-exposure jobs in the actual study population is a potential explanation for the disagreement between the two methods. Investigators should be aware that statistical models estimating exposure intensity using existing data from one type of worker population might not be generalizable to all populations of workers.
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Affiliation(s)
- Candice Y Johnson
- a National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Cincinnati , Ohio
- b Epidemic Intelligence Service, Centers for Disease Control and Prevention , Atlanta , Georgia
| | - Carissa M Rocheleau
- a National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Cincinnati , Ohio
| | - Misty J Hein
- a National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Cincinnati , Ohio
- c CACI Inc. , Cincinnati , Ohio
| | - Martha A Waters
- a National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Cincinnati , Ohio
| | | | - Christina C Lawson
- a National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Cincinnati , Ohio
| | - Jennita Reefhuis
- e National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention , Atlanta , Georgia
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Florentin A, Zmirou-Navier D, Paris C. Contribution of job-exposure matrices for exposure assessment in occupational safety and health monitoring systems: application from the French national occupational disease surveillance and prevention network. Int Arch Occup Environ Health 2017; 90:491-500. [PMID: 28299449 DOI: 10.1007/s00420-017-1215-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 03/06/2017] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To detect new hazards ("signals"), occupational health monitoring systems mostly rest on the description of exposures in the jobs held and on reports by medical doctors; these are subject to declarative bias. Our study aims to assess whether job-exposure matrices (JEMs) could be useful tools for signal detection by improving exposure reporting. METHODS Using the French national occupational disease surveillance and prevention network (RNV3P) data from 2001 to 2011, we explored the associations between disease and exposure prevalence for 3 well-known pathology/exposure couples and for one debatable couple. We compared the associations measured when using physicians' reports or applying the JEMs, respectively, for these selected diseases and across non-selected RNV3P population or for cases with musculoskeletal disorders, used as two reference groups; the ratio of exposure prevalences according to the two sources of information were computed for each disease category. RESULTS Our population contained 58,188 subjects referred with pathologies related to work. Mean age at diagnosis was 45.8 years (95% CI 45.7; 45.9), and 57.2% were men. For experts, exposure ratios increase with knowledge on exposure causality. As expected, JEMs retrieved more exposed cases than experts (exposure ratios between 12 and 194), except for the couple silica/silicosis, but not for the MSD control group (ratio between 0.2 and 0.8). CONCLUSIONS JEMs enhanced the number of exposures possibly linked with some conditions, compared to experts' assessment, relative to the whole database or to a reference group; they are less likely to suffer from declarative bias than reports by occupational health professionals.
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Affiliation(s)
- Arnaud Florentin
- INGRES, EA 7298, Lorraine University, Medical Faculty, 54505, Vandoeuvre Les Nancy, France. .,Operational Team of Hospital Hygiene, CHRU de Nancy, Rue du Morvan, 54 505, Vandœuvre-lès-Nancy, France.
| | - Denis Zmirou-Navier
- INGRES, EA 7298, Lorraine University, Medical Faculty, 54505, Vandoeuvre Les Nancy, France.,EHESP School of Public Health, Sorbonne-Paris Cité, Rennes, France.,Inserm U1085-IRSET, Rennes, France
| | | | - Christophe Paris
- INGRES, EA 7298, Lorraine University, Medical Faculty, 54505, Vandoeuvre Les Nancy, France.,Occupational Diseases Department, CHRU Nancy, 54505, Vandoeuvre Les Nancy, France
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Lock EA, Keane P, Rowe PH, Foster JR, Antoine D, Morris CM. Trichloroethylene-induced formic aciduria in the male C57 Bl/6 mouse. Toxicology 2017; 378:76-85. [DOI: 10.1016/j.tox.2017.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 12/08/2016] [Accepted: 01/03/2017] [Indexed: 11/26/2022]
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Purdue MP, Stewart PA, Friesen MC, Colt JS, Locke SJ, Hein MJ, Waters MA, Graubard BI, Davis F, Ruterbusch J, Schwartz K, Chow WH, Rothman N, Hofmann JN. Occupational exposure to chlorinated solvents and kidney cancer: a case-control study. Occup Environ Med 2016; 74:268-274. [PMID: 27803178 DOI: 10.1136/oemed-2016-103849] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 09/02/2016] [Accepted: 10/12/2016] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Trichloroethylene, a chlorinated solvent widely used for metal degreasing, is classified by the International Agency for Research on Cancer as a kidney carcinogen. Other chlorinated solvents are suspected carcinogens, most notably the cleaning solvent perchloroethylene, although it is unclear whether they are associated with kidney cancer. We investigated kidney cancer associations with occupational exposure to 6 chlorinated solvents (trichloroethylene, perchloroethylene, 1,1,1-trichloroethane, carbon tetrachloride, chloroform, and methylene chloride) within a case-control study using detailed exposure assessment methods. METHODS Cases (n=1217) and controls (n=1235) provided information on their occupational histories and, for selected occupations, on tasks involving potential exposure to chlorinated solvents through job-specific interview modules. Using this information, an industrial hygienist assessed potential exposure to each solvent. We computed ORs and 95% CIs for different exposure metrics, with unexposed participants as the referent group. RESULTS 1,1,1-trichloroethane, carbon tetrachloride, chloroform, and methylene chloride were not associated with kidney cancer. Among jobs with high exposure intensity, high cumulative hours exposed to perchloroethylene was associated with increased risk, both overall (third tertile vs unexposed: OR 3.1, 95% CI 1.3 to 7.4) and after excluding participants with ≥50% exposure probability for trichloroethylene (OR 3.0, 95% CI 0.99 to 9.0). A non-significant association with high cumulative hours exposed to trichloroethylene was observed (OR 1.7, 95% CI 0.8 to 3.8). CONCLUSIONS In this study, high exposure to perchloroethylene was associated with kidney cancer, independent of trichloroethylene. Additional studies are needed to further investigate this finding.
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Affiliation(s)
- Mark P Purdue
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Melissa C Friesen
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Joanne S Colt
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Sarah J Locke
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Martha A Waters
- Division of Applied Research and Technology, National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA
| | - Barry I Graubard
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Faith Davis
- University of Alberta, Edmonton, Alberta, Canada
| | - Julie Ruterbusch
- Department of Family Medicine and Public Health Sciences, Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA
| | - Kendra Schwartz
- Department of Family Medicine and Public Health Sciences, Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA
| | - Wong-Ho Chow
- Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jonathan N Hofmann
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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Press DJ, McKinley M, Deapen D, Clarke CA, Gomez SL. Residential cancer cluster investigation nearby a Superfund Study Area with trichloroethylene contamination. Cancer Causes Control 2016; 27:607-13. [PMID: 26983615 PMCID: PMC5759954 DOI: 10.1007/s10552-016-0734-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 02/29/2016] [Indexed: 01/07/2023]
Abstract
PURPOSE Trichloroethylene (TCE) is an industrial solvent associated with liver cancer, kidney cancer, and non-Hodgkin's lymphoma (NHL). It is unclear whether an excess of TCE-associated cancers have occurred surrounding the Middlefield-Ellis-Whisman Superfund site in Mountain View, California. We conducted a population-based cancer cluster investigation comparing the incidence of NHL, liver, and kidney cancers in the neighborhood of interest to the incidence among residents in the surrounding four-county region. METHODS Case counts and address information were obtained using routinely collected data from the Greater Bay Area Cancer Registry, part of the Surveillance, Epidemiology, and End Results program. Population denominators were obtained from the 1990, 2000, and 2010 US censuses. Standardized incidence ratios (SIRs) with two-sided 99 % confidence intervals (CIs) were calculated for time intervals surrounding the US Censuses. RESULTS There were no statistically significant differences between the neighborhood of interest and the larger region for cancers of the liver or kidney. A statistically significant elevation was observed for NHL during one of the three time periods evaluated (1996-2005: SIR = 1.8, 99 % CI 1.1-2.8). No statistically significant NHL elevation existed in the earlier 1988-1995 (SIR = 1.3, 99 % CI 0.5-2.6) or later 2006-2011 (SIR = 1.3, 99 % CI 0.6-2.4) periods. CONCLUSION There is no evidence of an increased incidence of liver or kidney cancer, and there is a lack of evidence of a consistent, sustained, or more recent elevation in NHL occurrence in this neighborhood. This evaluation included existing cancer registry data, which cannot speak to specific exposures incurred by past or current residents of this neighborhood.
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Affiliation(s)
- David J Press
- Cancer Prevention Institute of California, 2201 Walnut Ave, Suite 300, Fremont, CA, 94538, USA.
- University of Southern California, 2001 N Soto St, Suite 305, Los Angeles, CA, 90032, USA.
- Department of Public Health Sciences, University of Chicago, 5841 South Maryland Ave, Rm. R-214, MC2000, Chicago, IL, 60637, USA.
| | - Meg McKinley
- Cancer Prevention Institute of California, 2201 Walnut Ave, Suite 300, Fremont, CA, 94538, USA
| | - Dennis Deapen
- University of Southern California, 2001 N Soto St, Suite 305, Los Angeles, CA, 90032, USA
| | - Christina A Clarke
- Cancer Prevention Institute of California, 2201 Walnut Ave, Suite 300, Fremont, CA, 94538, USA
- Division of Epidemiology, Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA, 94305-5405, USA
| | - Scarlett Lin Gomez
- Cancer Prevention Institute of California, 2201 Walnut Ave, Suite 300, Fremont, CA, 94538, USA
- Division of Epidemiology, Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA, 94305-5405, USA
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Fallahpour N, Yuan S, Rajic L, Alshawabkeh AN. Hydrodechlorination of TCE in a circulated electrolytic column at high flow rate. CHEMOSPHERE 2016; 144:59-64. [PMID: 26344148 PMCID: PMC4695317 DOI: 10.1016/j.chemosphere.2015.08.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 08/07/2015] [Accepted: 08/10/2015] [Indexed: 05/31/2023]
Abstract
Palladium-catalytic hydrodechlorination of trichloroethylene (TCE) by cathodic H2 produced from water electrolysis has been tested. For a field in-well application, the flow rate is generally high. In this study, the performance of Pd-catalytic hydrodechlorination of TCE using cathodic H2 is evaluated under high flow rate (1 L min(-1)) in a circulated column system, as expected to occur in practice. An iron anode supports reduction conditions and it is used to enhance TCE hydrodechlorination. However, the precipitation occurs and high flow rate was evaluated to minimize its adverse effects on the process (electrode coverage, clogging, etc.). Under the conditions of 1 L min(-1) flow, 500 mA current, and 5 mg L(-1) initial TCE concentration, removal efficacy using iron anodes (96%) is significantly higher than by mixed metal oxide (MMO) anodes (66%). Two types of cathodes (MMO and copper foam) in the presence of Pd/Al2O3 catalyst under various currents (250, 125, and 62 mA) were used to evaluate the effect of cathode materials on TCE removal efficacy. The similar removal efficiencies were achieved for both cathodes, but more precipitation generated with copper foam cathode (based on the experiments done by authors). In addition to the well-known parameters such as current density, electrode materials, and initial TCE concentration, the high velocities of groundwater flow can have important implications, practically in relation to the flush out of precipitates. For potential field application, a cost-effective and sustainable in situ electrochemical process using a solar panel as power supply is being evaluated.
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Affiliation(s)
- Noushin Fallahpour
- Civil and Environmental Engineering Department, Northeastern University, Boston, MA, 02115, USA
| | - Songhu Yuan
- Civil and Environmental Engineering Department, Northeastern University, Boston, MA, 02115, USA; State Key Lab of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, PR China
| | - Ljiljana Rajic
- Civil and Environmental Engineering Department, Northeastern University, Boston, MA, 02115, USA
| | - Akram N Alshawabkeh
- Civil and Environmental Engineering Department, Northeastern University, Boston, MA, 02115, USA.
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Desrosiers TA, Lawson CC, Meyer RE, Stewart PA, Waters MA, Correa A, Olshan AF. Assessed occupational exposure to chlorinated, aromatic and Stoddard solvents during pregnancy and risk of fetal growth restriction. Occup Environ Med 2015; 72:587-93. [PMID: 26076683 DOI: 10.1136/oemed-2015-102835] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 05/29/2015] [Indexed: 01/16/2023]
Abstract
OBJECTIVES Previous experimental and epidemiological research suggests that maternal exposure to some organic solvents during pregnancy may increase the risk of fetal growth restriction (FGR). We evaluated the association between expert-assessed occupational solvent exposure and risk of small for gestational age (SGA) infants in a population-based sample of women in the National Birth Defects Prevention Study. METHODS We analysed data from 2886 mothers and their infants born between 1997 and 2002. Job histories were self-reported. Probability of exposure to six chlorinated, three aromatic and one petroleum solvent was assessed by industrial hygienists. SGA was defined as birthweight<10th centile of birthweight-by-gestational age in a national reference. Logistic regression was used to estimate ORs and 95% CIs to assess the association between SGA and exposure to any solvent(s) or specific solvent classes, adjusting for maternal age and education. RESULTS Approximately 8% of infants were SGA. Exposure prevalence to any solvent was 10% and 8% among mothers of SGA and non-SGA infants, respectively. Among women with ≥ 50% probability of exposure, we observed elevated but imprecise associations between SGA and exposure to any solvent(s) (1.71; 0.86 to 3.40), chlorinated solvents (1.70; 0.69 to 4.01) and aromatic solvents (1.87; 0.78 to 4.50). CONCLUSIONS This is the first population-based study in the USA to investigate the potential association between FGR and assessed maternal occupational exposure to distinct classes of organic solvents during pregnancy. The potential associations observed between SGA and exposure to chlorinated and aromatic solvents are based on small numbers and merit further investigation.
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Affiliation(s)
- Tania A Desrosiers
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Christina C Lawson
- National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA
| | - Robert E Meyer
- North Carolina Division of Public Health, Birth Defects Monitoring Program, State Centre for Health Statistics, Raleigh, North Carolina, USA
| | | | - Martha A Waters
- National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA
| | - Adolfo Correa
- Departments of Medicine and Pediatrics, University of Mississippi Medical Centre, Jackson, Mississippi, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
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Zhang M, Harrington PDB. Application of chemometrics to resolve overlapping mass spectral peak clusters between trichloroethylene and its deuterated internal standard. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:789-794. [PMID: 26377006 DOI: 10.1002/rcm.7164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 02/02/2015] [Accepted: 02/03/2015] [Indexed: 06/05/2023]
Abstract
RATIONALE Using one or two (2) H-atom-labeled analogs as internal standards (ISs) may cause a 'cross-contribution' problem (i.e., the overlap of ions from the IS and the analyte) especially for halogenated volatile organic compounds (VOCs). However, in this situation the overlapping peak clusters of the analyte and ISs can be resolved by multivariate chemometric methods such as classical least-squares (CLS) and inverse least-squares (ILS). METHODS Trichloroethylene (TCE) and its internal standard, deuterated TCE (TCE-d), as model compounds, were analyzed using portable gas chromatography/mass spectrometry. CLS and ILS were applied to resolve overlapping TCE and TCE-d mass spectral signals and evaluated for the determination of TCE. CLS and ILS models were constructed and used to predict concentration ratios of TCE to TCE-d. Calibration samples were prepared by adding TCE at different concentrations and TCE-d at 300 ng mL(-1) as an IS. RESULTS The calibration curve was linear over a range of 10-1000 ng mL(-1) with a coefficient of determination (R(2)) of 0.993. A validation data set collected 2 weeks later was used to further test the model robustness. Lower prediction errors and higher correlation coefficients were obtained from TCE/TCE-d ratios predicted by the CLS model. CONCLUSIONS This paper describes the first application of CLS to deconvolute overlapping peaks between an analyte and its corresponding isotopic internal standard for quantification. The proposed method enables simple isotopic analogs of analytes (one H or C atom is isotopically labeled) to be used as internal standards for analytes with isotopic distributions. It has wide application because of the environmental impact and prevalence of halogenated VOCs, especially when analytes have isotopic distributions that overlap with an internal standard or when sophisticated isotopic analogs of the analytes with three or more (2)H- or/and (13)C-atoms are prohibitively expensive or even impossible.
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Affiliation(s)
- Mengliang Zhang
- Center for Intelligent Chemical Instrumentation, Clippinger Laboratories, Department of Chemistry and Biochemistry, Ohio University, Athens, OH, 45701-2979, USA
| | - Peter de B Harrington
- Center for Intelligent Chemical Instrumentation, Clippinger Laboratories, Department of Chemistry and Biochemistry, Ohio University, Athens, OH, 45701-2979, USA
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Determination of Trichloroethylene in Water by Liquid–Liquid Microextraction Assisted Solid Phase Microextraction. CHROMATOGRAPHY 2015. [DOI: 10.3390/chromatography2010066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Proteomic profiling of occupational medicamentosa-like dermatitis induced by trichloroethylene in serum based on MALDI-TOF MS. Clin Exp Med 2014; 15:519-26. [DOI: 10.1007/s10238-014-0326-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 11/20/2014] [Indexed: 10/24/2022]
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Chen YC, Coble JB, Deziel NC, Ji BT, Xue S, Lu W, Stewart PA, Friesen MC. Reliability and validity of expert assessment based on airborne and urinary measures of nickel and chromium exposure in the electroplating industry. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2014; 24:622-628. [PMID: 24736099 PMCID: PMC4199939 DOI: 10.1038/jes.2014.22] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 02/12/2014] [Indexed: 06/03/2023]
Abstract
The reliability and validity of six experts' exposure ratings were evaluated for 64 nickel-exposed and 72 chromium-exposed workers from six Shanghai electroplating plants based on airborne and urinary nickel and chromium measurements. Three industrial hygienists and three occupational physicians independently ranked the exposure intensity of each metal on an ordinal scale (1-4) for each worker's job in two rounds: the first round was based on responses to an occupational history questionnaire and the second round also included responses to an electroplating industry-specific questionnaire. The Spearman correlation (r(s)) was used to compare each rating's validity to its corresponding subject-specific arithmetic mean of four airborne or four urinary measurements. Reliability was moderately high (weighted kappa range=0.60-0.64). Validity was poor to moderate (r(s)=-0.37-0.46) for both airborne and urinary concentrations of both metals. For airborne nickel concentrations, validity differed by plant. For dichotomized metrics, sensitivity and specificity were higher based on urinary measurements (47-78%) than airborne measurements (16-50%). Few patterns were observed by metal, assessment round, or expert type. These results suggest that, for electroplating exposures, experts can achieve moderately high agreement and (reasonably) distinguish between low and high exposures when reviewing responses to in-depth questionnaires used in population-based case-control studies.
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Affiliation(s)
- Yu-Cheng Chen
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
- Now at: National Environmental Health Research Center, National Health Research Institutes, 35 Keyan Rd., Zhunan Township, Miaoli County, 35053, Taiwan
| | - Joseph B Coble
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
- Formerly of the National Cancer Institute; currently 1412 Harmony Lane, Annapolis, MD 21409, USA
| | - Nicole C. Deziel
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Bu-Tian Ji
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Shouzheng Xue
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Wei Lu
- Shanghai Municipal Center for Disease Control, 1380 Zhongshan Road, Shanghai, China
| | - Patricia A Stewart
- Formerly of the National Cancer Institute; Stewart Exposure Assessments, LLC, Arlington, VA USA
| | - Melissa C Friesen
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
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Friesen MC, Locke SJ, Chen YC, Coble JB, Stewart PA, Ji BT, Bassig B, Lu W, Xue S, Chow WH, Lan Q, Purdue MP, Rothman N, Vermeulen R. Historical occupational trichloroethylene air concentrations based on inspection measurements from Shanghai, China. ACTA ACUST UNITED AC 2014; 59:62-78. [PMID: 25180291 DOI: 10.1093/annhyg/meu066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE Trichloroethylene (TCE) is a carcinogen that has been linked to kidney cancer and possibly other cancer sites including non-Hodgkin lymphoma. Its use in China has increased since the early 1990s with China's growing metal, electronic, and telecommunications industries. We examined historical occupational TCE air concentration patterns in a database of TCE inspection measurements collected in Shanghai, China to identify temporal trends and broad contrasts among occupations and industries. METHODS Using a database of 932 short-term, area TCE air inspection measurements collected in Shanghai worksites from 1968 through 2000 (median year 1986), we developed mixed-effects models to evaluate job-, industry-, and time-specific TCE air concentrations. RESULTS Models of TCE air concentrations from Shanghai work sites predicted that exposures decreased 5-10% per year between 1968 and 2000. Measurements collected near launderers and dry cleaners had the highest predicted geometric means (GM for 1986 = 150-190 mg m(-3)). The majority (53%) of the measurements were collected in metal treatment jobs. In a model restricted to measurements in metal treatment jobs, predicted GMs for 1986 varied 35-fold across industries, from 11 mg m(-3) in 'other metal products/repair' industries to 390 mg m(-3) in 'ships/aircrafts' industries. CONCLUSIONS TCE workplace air concentrations appeared to have dropped over time in Shanghai, China between 1968 and 2000. Understanding differences in TCE concentrations across time, occupations, and industries may assist future epidemiologic studies in China.
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Affiliation(s)
- Melissa C Friesen
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Sarah J Locke
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Yu-Cheng Chen
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Joseph B Coble
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Patricia A Stewart
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA 2.Stewart Exposure Assessments, LLC , Arlington, VA 22207, USA
| | - Bu-Tian Ji
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Bryan Bassig
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Wei Lu
- 3.Shanghai Municipal Center for Disease Control, 1380 Zhongshan Road, Shanghai, People's Republic of China
| | - Shouzheng Xue
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Wong-Ho Chow
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA 4.Department of Epidemiology, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Qing Lan
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Mark P Purdue
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Nathaniel Rothman
- 1.Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892-7240, USA
| | - Roel Vermeulen
- 5.Environmental and Occupational Health Division, Institute for Risk Assessment Sciences, University of Utrecht, Utrecht, The Netherlands
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Singthong S, Pakkong P, Choosang K, Wongsanit S. Occupational health risks among trichloroethylene-exposed workers in a clock manufacturing factory. Glob J Health Sci 2014; 7:161-72. [PMID: 25560356 PMCID: PMC4796495 DOI: 10.5539/gjhs.v7n1p161] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 07/22/2014] [Indexed: 11/16/2022] Open
Abstract
Trichloroethylene (TCE) is an important volatile organic compound once widely used in industry throughout the world. Occupational exposure to TCE can cause a number of health hazards such as allergic reactions and genetic damage. The purpose of this study was to evaluate occupational exposure to TCE, by analysis of the air in the breathing zone and of urine from workers employed in a clock manufacturing factory. A subjective symptom survey was conducted by using a self-administered questionnaire to evaluate the health hazards. Micronucleus (MN) frequency, based on the cytokinesis-block micronucleus assay (CBMN) in peripheral blood lymphocytes, (PBLs) was used as a biomarker for chromosome damage. A total of 244 participants, including 171 workers occupationally exposed to TCE and 73 non-exposed control employees, working mainly in office jobs in the same factory, were enrolled in this study. Analyses of airborne TCE concentrations in the workplace, and of urinary trichloroacetic acid (TCA) of the workers and controls, were performed by Gas Chromatography-Electron Capture Detector (GC-ECD) using the modified headspace technique. The average concentration of TCE in the workplace breathing zone was 27.83 ± 6.02 ppm. The average level of urinary TCA of the exposed workers and controls was 14.84 ± 1.62, 2.95 ± 0.28 mg/L. The frequency of MN/1000BN was 7.029 ± 0.39, significantly higher than for those in the control group (3.57 ± 0.31, p = 0.001). According to multiple linear regression analysis, the results indicated that urinary TCA levels correlated with the increased MN in exposed workers (r = 0.285, p < 0.001). The prevalence rate of subjective symptoms in the exposed group was 9.61-11.76 times higher than the rate of the non-exposed group (p < 0.001). It was found that skin (29.6%) and respiratory symptoms (21.1%) were the most frequent among the exposed workers. In conclusion, these results indicate that increased micronucleus frequency is associated with occupational trichloroethylene exposure. The use of TCE in the factory is threatening workers’ health.
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Abstract
Liquid chromatography-mass spectrometry (LC-MS)-based metabolomics can have a major impact in multiple research fields, especially when combined with other technologies, such as stable isotope tracers and genetically modified mice. This review highlights recent applications of metabolomic technology in the study of xenobiotic metabolism and toxicity, and the understanding of disease pathogenesis and therapeutics. Metabolomics has been employed to study metabolism of noscapine, an aryl hydrocarbon receptor antagonist, and to determine the mechanisms of liver toxicities of rifampicin and isoniazid, trichloroethylene, and gemfibrozil. Metabolomics-based insights into the pathogenesis of inflammatory bowel disease, alcohol-induced liver diseases, non-alcoholic steatohepatitis, and farnesoid X receptor signaling pathway-based therapeutic target discovery will also be discussed. Limitations in metabolomics technology such as sample preparation and lack of LC-MS databases and metabolite standards, need to be resolved in order to improve and broaden the application of metabolomic studies.
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Kim YJ, Hwang ED, Leem AY, Kang BD, Chang SY, Kim HK, Park IK, Kim SY, Kim EY, Jung JY, Kang YA, Park MS, Kim YS, Kim SK, Chang J, Chung KS. A case of occupational hypersensitivity pneumonitis associated with trichloroethylene. Tuberc Respir Dis (Seoul) 2014; 76:75-9. [PMID: 24624216 PMCID: PMC3948855 DOI: 10.4046/trd.2014.76.2.75] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 09/02/2013] [Accepted: 09/23/2013] [Indexed: 11/24/2022] Open
Abstract
Trichloroethylene (TCE) is a toxic chemical commonly used as a degreasing agent, and it is usually found in a colorless or blue liquid form. TCE has a sweet, chloroform-like odor, and this volatile chlorinated organic chemical can cause toxic hepatitis, neurophysiological disorders, skin disorders, and hypersensitivity syndromes. However, the hypersensitivity pneumonitis (HP) attributed to TCE has rarely been reported. We hereby describe a case of HP associated with TCE in a 29-year-old man who was employed as a lead welder at a computer repair center. He was installing the capacitors on computer chip boards and had been wiped down with TCE. He was admitted to our hospital with complaints of dry coughs, night sweats, and weight losses for the past two months. HP due to TCE exposure was being suspected due to his occupational history, and the results of a video-associated thoracoscopic biopsy confirmed the suspicions. Symptoms have resolved after the steroid pulse therapy and his occupational change. TCE should be taken into consideration as a potential trigger of HP. Early recognition and avoidance of the TCE exposure in the future is important for the treatment of TCE induced HP.
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Affiliation(s)
- Young Jae Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Eu Dong Hwang
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Ah Young Leem
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Beo Deul Kang
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Yun Chang
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Ho Keun Kim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - In Kyu Park
- Department of Thoracic Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Song Yee Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Young Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Ye Jung
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Young Ae Kang
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Moo Suk Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Young Sam Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Se Kyu Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Chang
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Soo Chung
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. ; The Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea
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Bove FJ, Ruckart PZ, Maslia M, Larson TC. Evaluation of mortality among marines and navy personnel exposed to contaminated drinking water at USMC base Camp Lejeune: a retrospective cohort study. Environ Health 2014; 13:10. [PMID: 24552493 PMCID: PMC3943370 DOI: 10.1186/1476-069x-13-10] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 02/11/2014] [Indexed: 05/28/2023]
Abstract
BACKGROUND Two drinking water systems at U.S. Marine Corps Base Camp Lejeune, North Carolina were contaminated with solvents during 1950s-1985. METHODS We conducted a retrospective cohort mortality study of Marine and Naval personnel who began service during 1975-1985 and were stationed at Camp Lejeune or Camp Pendleton, California during this period. Camp Pendleton's drinking water was uncontaminated. Mortality follow-up was 1979-2008. Standardized Mortality Ratios were calculated using U.S. mortality rates as reference. We used survival analysis to compare mortality rates between Camp Lejeune (N = 154,932) and Camp Pendleton (N = 154,969) cohorts and assess effects of cumulative exposures to contaminants within the Camp Lejeune cohort. Models estimated monthly contaminant levels at residences. Confidence intervals (CIs) indicated precision of effect estimates. RESULTS There were 8,964 and 9,365 deaths respectively, in the Camp Lejeune and Camp Pendleton cohorts. Compared to Camp Pendleton, Camp Lejeune had elevated mortality hazard ratios (HRs) for all cancers (HR = 1.10, 95% CI: 1.00, 1.20), kidney cancer (HR = 1.35, 95% CI: 0.84, 2.16), liver cancer (HR = 1.42, 95% CI: 0.92, 2.20), esophageal cancer (HR = 1.43 95% CI: 0.85, 2.38), cervical cancer (HR = 1.33, 95% CI: 0.24, 7.32), Hodgkin lymphoma (HR = 1.47, 95% CI: 0.71, 3.06), and multiple myeloma (HR = 1.68, 95% CI: 0.76, 3.72). Within the Camp Lejeune cohort, monotonic categorical cumulative exposure trends were observed for kidney cancer and total contaminants (HR, high cumulative exposure = 1.54, 95% CI: 0.63, 3.75; log10 β = 0.06, 95% CI: -0.05, 0.17), Hodgkin lymphoma and trichloroethylene (HR, high cumulative exposure = 1.97, 95% CI: 0.55, 7.03; β = 0.00005, 95% CI: -0.00003, 0.00013) and benzene (HR, high cumulative exposure = 1.94, 95% CI: 0.54, 6.95; β = 0.00203, 95% CI: -0.00339, 0.00745). Amyotrophic Lateral Sclerosis (ALS) had HR = 2.21 (95% CI: 0.71, 6.86) at high cumulative vinyl chloride exposure but a non-monotonic exposure-response relationship (β = 0.0011, 95% CI: 0.0002, 0.0020). CONCLUSION The study found elevated HRs at Camp Lejeune for several causes of death including cancers of the kidney, liver, esophagus, cervix, multiple myeloma, Hodgkin lymphoma and ALS. CIs were wide for most HRs. Because <6% of the cohort had died, long-term follow-up would be necessary to comprehensively assess effects of drinking water exposures at the base.
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Affiliation(s)
- Frank J Bove
- Division of Toxicology and Human Health Sciences, Agency for Toxic Substances and Disease Registry (ATSDR), 4770 Buford Highway, MS F-58, Atlanta, GA 30341, USA
| | - Perri Zeitz Ruckart
- Division of Toxicology and Human Health Sciences, Agency for Toxic Substances and Disease Registry (ATSDR), 4770 Buford Highway, MS F-58, Atlanta, GA 30341, USA
| | - Morris Maslia
- ATSDR, Division of Community Health Investigations, 4770 Buford Highway, MS F-59, Atlanta, GA 30341, USA
| | - Theodore C Larson
- Division of Toxicology and Human Health Sciences, Agency for Toxic Substances and Disease Registry (ATSDR), 4770 Buford Highway, MS F-58, Atlanta, GA 30341, USA
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Arciello M, Gori M, Maggio R, Barbaro B, Tarocchi M, Galli A, Balsano C. Environmental pollution: a tangible risk for NAFLD pathogenesis. Int J Mol Sci 2013; 14:22052-66. [PMID: 24213605 PMCID: PMC3856051 DOI: 10.3390/ijms141122052] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 10/18/2013] [Accepted: 10/24/2013] [Indexed: 12/13/2022] Open
Abstract
The liver is crucial for human life, and the health of this organ often mirrors the health of the individual. The liver can be the target of several diseases, the most prevalent of which, as a consequence of development and changes in human lifestyles, is the nonalcoholic fatty liver disease (NAFLD). NAFLD is a multifactorial disease that embraces many histo-pathologic conditions and is highly linked to metabolic derangements. Technological progress and industrialization have also had the consequence of releasing pollutants in the environment, for instance pesticides or solvents, as well as by-products of discharge, such as the particulate matter. In the last decade, a growing body of evidence has emerged, shedding light on the potential impact of environmental pollutants on liver health and, in particular, on NAFLD occurrence. These contaminants have a great steatogenic potential and need to be considered as tangible NAFLD risk factors. There is an urgent need for a deeper comprehension of their molecular mechanisms of action, as well as for new lines of intervention to reduce their worldwide diffusion. This review wishes to sensitize the community to the effects of several environmental pollutants on liver health.
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Affiliation(s)
- Mario Arciello
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
| | - Manuele Gori
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Via Tronto 10, Ancona 60020, Italy
| | - Roberta Maggio
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
| | - Barbara Barbaro
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
| | - Mirko Tarocchi
- Gastroenterology Unit, Department of Experimental and Clinical Biochemical Sciences, University of Florence, Viale Pieraccini 6, Florence 50139, Italy; E-Mails: (M.T.); (A.G.)
| | - Andrea Galli
- Gastroenterology Unit, Department of Experimental and Clinical Biochemical Sciences, University of Florence, Viale Pieraccini 6, Florence 50139, Italy; E-Mails: (M.T.); (A.G.)
| | - Clara Balsano
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
- Institute of Molecular Biology and Pathology (IBPM)-National Research Council (CNR), Piazzale Aldo Moro 7, Rome 00185, Italy
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-06-4993-3094; Fax: +39-06-4991-0908
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Risk of selected cancers due to occupational exposure to chlorinated solvents in a case-control study in Montreal. J Occup Environ Med 2013; 55:198-208. [PMID: 23147555 DOI: 10.1097/jom.0b013e3182728eab] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate the association between exposure to chlorinated solvents and cancer. METHODS We conducted a case-control study of occupational exposures and cancer in Montreal, Quebec, Canada, including 3730 cancer cases and 533 population controls. Occupational exposures were derived using a combination of subject-reported job history and expert assessment. We examined the associations between two chemical families and six chlorinated solvents with 11 sites of cancer. RESULTS The majority of the associations examined were null, although many were based on small numbers. We found two significantly elevated odds ratios (ORs), one between perchloroethylene and prostate cancer (OR = 4.3; 95% CI: 1.4 to 13) and another between trichloroethylene and melanoma (OR = 3.2; 95% CI: 1.0 to 9.9). CONCLUSIONS There was little evidence of associations between chlorinated solvents and cancer. Limited power precludes strong inferences about absence of risk. We raise hypotheses about two possible associations: perchloroethylene with prostate cancer and trichloroethylene with melanoma.
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Hong WX, Liu W, Zhang Y, Huang P, Yang X, Ren X, Ye J, Huang H, Tang H, Zhou G, Huang X, Zhuang Z, Liu J. Identification of serum biomarkers for occupational medicamentosa-like dermatitis induced by trichloroethylene using mass spectrometry. Toxicol Appl Pharmacol 2013; 273:121-9. [PMID: 23994554 DOI: 10.1016/j.taap.2013.08.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 08/10/2013] [Accepted: 08/13/2013] [Indexed: 01/03/2023]
Abstract
Occupational medicamentosa-like dermatitis induced by trichloroethylene (OMLDT) is an autoimmune disease and it has become a serious occupational health hazard. In the present study, we collected fasting blood samples from patients with OMLDT (n=18) and healthy volunteers (n=33) to explore serum peptidome patterns. Peptides in sera were purified using weak cation exchange magnetic beads (MB-WCX), and analyzed by matrix-assisted laser desorption ionization time-of-flight-mass spectrometry (MALDI-TOF-MS) and ClinProTools bioinformatics software. The intensities of thirty protein/peptide peaks were significantly different between the healthy control and OMLDT patients. A pattern of three peaks (m/z 2106.3, 2134.5, and 3263.67) was selected for supervised neural network (SNN) model building to separate the OMLDT patients from the healthy controls with a sensitivity of 95.5% and a specificity of 73.8%. Furthermore, two peptide peaks of m/z 4091.61 and 4281.69 were identified as fragments of ATP-binding cassette transporter family A member 12 (ABCA12), and cationic trypsinogen (PRRS1), respectively. Our findings not only show that specific proteomic fingerprints in the sera of OMLDT patients can be served as a differentiated tool of OMLDT patients with high sensitivity and high specificity, but also reveal the novel correlation between OMLDT with ABC transports and PRRS1, which will be of potential value for clinical and mechanistic studies of OMLDT.
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Affiliation(s)
- Wen-Xu Hong
- Key Laboratory of Modern Toxicology of Shenzhen, Medical Key Laboratory of Guangdong Province, Medical Key Laboratory of Health Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
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Karami S, Bassig B, Stewart PA, Lee KM, Rothman N, Moore LE, Lan Q. Occupational trichloroethylene exposure and risk of lymphatic and haematopoietic cancers: a meta-analysis. Occup Environ Med 2013; 70:591-9. [DOI: 10.1136/oemed-2012-101212] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Hansen J, Sallmén M, Seldén AI, Anttila A, Pukkala E, Andersson K, Bryngelsson IL, Raaschou-Nielsen O, Olsen JH, McLaughlin JK. Risk of cancer among workers exposed to trichloroethylene: analysis of three Nordic cohort studies. J Natl Cancer Inst 2013; 105:869-77. [PMID: 23723420 DOI: 10.1093/jnci/djt107] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Trichloroethylene (TCE) is a widely used chlorinated solvent with demonstrated carcinogenicity in animal assays. Some epidemiologic studies have reported increased risk of cancer of the kidney, cervix, liver and biliary passages, non-Hodgkin lymphoma, and esophageal adenocarcinoma. METHODS We established a pooled cohort, including 5553 workers with individual documented exposure to TCE in Finland, Sweden, and Denmark. Study participants were monitored for the urinary TCE metabolite trichloroacetic acid from 1947 to 1989 and followed for cancer. Standardized incidence ratios (SIRs) were calculated based on cancer incidence rates in the three national populations. Cox proportionate hazard analyses were used for internal comparisons. Tests of statistical significance are two-sided. RESULTS Overall, 997 cases of cancer (n = 683 in men; n = 314 in women) were identified during 154 778 person-years of follow-up. We observed statistically significant elevated standardized incidence ratios for primary liver cancer (1.93; 95% confidence interval [CI] = 1.19 to 2.95) and cervical cancer (2.31; 95% CI = 1.32 to 3.75). The standardized incidence ratio for kidney cancer was 1.01 (95% CI = 0.70 to 1.42) based on 32 cases; we did not observe a statistically significant increased risk of non-Hodgkin's lymphoma (SIR = 1.26; 95% CI = 0.89 to 1.73) or esophageal adenocarcinoma (SIR = 1.84; 95% CI = 0.65 to 4.65). Tobacco- and alcohol-associated cancers were not statistically significantly increased. CONCLUSIONS Our results suggest TCE exposure is possibly associated with an increased risk for liver cancer. The relationship between TCE exposure and risks of cancers of low incidence and those with confounding by lifestyle and other factors not known in our cohort require further study.
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Affiliation(s)
- Johnni Hansen
- Danish Cancer Society Research Center, Copenhagen, Denmark.
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Fang ZZ, Krausz KW, Tanaka N, Li F, Qu A, Idle JR, Gonzalez FJ. Metabolomics reveals trichloroacetate as a major contributor to trichloroethylene-induced metabolic alterations in mouse urine and serum. Arch Toxicol 2013; 87:1975-1987. [PMID: 23575800 DOI: 10.1007/s00204-013-1053-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 03/26/2013] [Indexed: 01/14/2023]
Abstract
Trichloroethylene (TCE)-induced liver toxicity and carcinogenesis is believed to be mediated in part by activation of the peroxisome proliferator-activated receptor α (PPARα). However, the contribution of the two TCE metabolites, dichloroacetate (DCA) and trichloroacetate (TCA) to the toxicity of TCE, remains unclear. The aim of the present study was to determine the metabolite profiles in serum and urine upon exposure of mice to TCE, to aid in determining the metabolic response to TCE exposure and the contribution of DCA and TCA to TCE toxicity. C57BL/6 mice were administered TCE, TCA, or DCA, and urine and serum subjected to ultra-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight mass spectrometry (UPLC-ESI-QTOFMS)-based global metabolomics analysis. The ions were identified through searching metabolomics databases and by comparison with authentic standards, and quantitated using multiple reactions monitoring. Quantitative polymerase chain reaction of mRNA, biochemical analysis, and liver histology were also performed. TCE exposure resulted in a decrease in urine of metabolites involved in fatty acid metabolism, resulting from altered expression of PPARα target genes. TCE treatment also induced altered phospholipid homeostasis in serum, as revealed by increased serum lysophosphatidylcholine 18:0 and 18:1, and phosphatidylcholine metabolites. TCA administration revealed similar metabolite profiles in urine and serum upon TCE exposure, which correlated with a more robust induction of PPARα target gene expression associated with TCA than DCA treatment. These data show the metabolic response to TCE exposure and demonstrate that TCA is the major contributor to TCE-induced metabolite alterations observed in urine and serum.
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Affiliation(s)
- Zhong-Ze Fang
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 3106, Bethesda, MD, 20892, USA
| | - Kristopher W Krausz
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 3106, Bethesda, MD, 20892, USA
| | - Naoki Tanaka
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 3106, Bethesda, MD, 20892, USA
| | - Fei Li
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 3106, Bethesda, MD, 20892, USA
| | - Aijuan Qu
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 3106, Bethesda, MD, 20892, USA
| | - Jeffrey R Idle
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 3106, Bethesda, MD, 20892, USA
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 3106, Bethesda, MD, 20892, USA.
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Vlaanderen J, Straif K, Pukkala E, Kauppinen T, Kyyrönen P, Martinsen JI, Kjaerheim K, Tryggvadottir L, Hansen J, Sparén P, Weiderpass E. Occupational exposure to trichloroethylene and perchloroethylene and the risk of lymphoma, liver, and kidney cancer in four Nordic countries. Occup Environ Med 2013; 70:393-401. [PMID: 23447073 DOI: 10.1136/oemed-2012-101188] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Trichloroethylene (TCE) and Perchloroethylene (PER) are two chlorinated solvents that are applied widely as degreasers of metal parts, and in dry cleaning and other applications. In 2012, the International Agency for Research on Cancer classified TCE as carcinogenic to humans and PER as probably carcinogenic to humans. We explored exposure-response relations for TCE and PER and non-Hodgkin's lymphoma (NHL), multiple myeloma (MM), and cancers of the kidney and liver in the Nordic Occupational Cancer cohort. METHODS The cohort was set up by linking occupational information from censuses to national cancer registry data using personal identity codes in use in all Nordic countries. Country, time period, and job-specific exposure estimates were generated for TCE, PER and potentially confounding occupational exposures with a job-exposure matrix. A conditional logistic regression was conducted for exposure groups as well as for continuous cumulative exposure. RESULTS HRs for liver cancer, NHL and MM but not kidney cancer were slightly elevated in groups with high exposure to PER (compared to occupationally unexposed subjects). HRs for liver cancer and NHL also increased with increasing continuous exposure to PER. We did not observe evidence for an association between exposure to TCE and NHL, MM or liver and kidney cancer. CONCLUSIONS Although this study was subject to limitations related to the low prevalence of exposure to PER and TCE in the Nordic population and a limited exposure assessment strategy, we observed some evidence indicative of an excess risk of cancer of the liver and NHL in subjects exposed to PER.
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Affiliation(s)
- Jelle Vlaanderen
- Section of Environment and Radiation, International Agency for Research on Cancer, Lyon, France
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Yaqoob N, Evans AR, Lock EA. Trichloroethylene-induced formic aciduria: Effect of dose, sex and strain of rat. Toxicology 2013; 304:49-56. [DOI: 10.1016/j.tox.2012.11.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 11/24/2012] [Accepted: 11/26/2012] [Indexed: 10/27/2022]
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Yu JF, Leng J, Shen T, Zhou CF, Xu H, Jiang T, Xu SH, Zhu QX. Possible role of complement activation in renal impairment in trichloroethylene-sensitized guinea pigs. Toxicology 2012; 302:172-8. [DOI: 10.1016/j.tox.2012.06.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 06/11/2012] [Accepted: 06/13/2012] [Indexed: 11/16/2022]
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Neta G, Stewart PA, Rajaraman P, Hein MJ, Waters MA, Purdue MP, Samanic C, Coble JB, Linet MS, Inskip PD. Occupational exposure to chlorinated solvents and risks of glioma and meningioma in adults. Occup Environ Med 2012; 69:793-801. [PMID: 22864249 PMCID: PMC3850418 DOI: 10.1136/oemed-2012-100742] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Chlorinated solvents are classified as probable or possible carcinogens. It is unknown whether exposure to these agents increases the risk of malignant or benign brain tumours. Our objective was to evaluate associations of brain tumour risk with occupational exposure to six chlorinated solvents (i.e., dichloromethane, chloroform, carbon tetrachloride, 1,1,1-trichloroethane, trichloroethylene and perchloroethylene). METHODS 489 glioma cases, 197 meningioma cases and 799 controls were enrolled in a hospital-based case-control study conducted at three U.S.A. hospitals in Arizona, Massachusetts and Pennsylvania. Information about occupational history was obtained through a detailed inperson interview that included job-specific modules of questions such that the interview was tailored to each individual's particular work history. An industrial hygienist assessed potential solvent exposure based on this information and an exhaustive review of the relevant industrial hygiene literature. Unconditional logistic regression models were used to calculate OR and 95% CI for each solvent for ever/never, duration, cumulative, average weekly and highest exposure. RESULTS Overall, we found no consistent evidence of an increased risk of glioma or meningioma related to occupational exposure to the six chlorinated solvents evaluated. There was some suggestion of an association between carbon tetrachloride and glioma in analyses restricted to exposed subjects, with average weekly exposure above the median associated with increased risk compared with below the median exposure (OR = 7.1, 95% CI 1.1 to 45.2). CONCLUSIONS We found no consistent evidence for increased brain tumour risk related to chlorinated solvents.
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Affiliation(s)
- Gila Neta
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, EPS, Room 7092, 6120 Executive Boulevard, Bethesda, MD 20852-7244, USA.
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Ruder AM, Yiin JH, Waters MA, Carreón T, Hein MJ, Butler MA, Calvert GM, Davis-King KE, Schulte PA, Mandel JS, Morton RF, Reding DJ, Rosenman KD, Stewart PA. The Upper Midwest Health Study: gliomas and occupational exposure to chlorinated solvents. Occup Environ Med 2012; 70:73-80. [PMID: 23104734 DOI: 10.1136/oemed-2011-100588] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Occupational exposure to chlorinated aliphatic solvents has been associated with an increased cancer risk, including brain cancer. However, many of these solvents remain in active, large-volume use. We evaluated glioma risk from non-farm occupational exposure (ever/never and estimated cumulative exposure) to any of the six chlorinated solvents--carbon tetrachloride, chloroform, methylene chloride, trichloroethylene, tetrachloroethylene or 1,1,1--trichloroethane-among 798 cases and 1175 population-based controls, aged 18-80 years and non-metropolitan residents of Iowa, Michigan, Minnesota and Wisconsin. Methods Solvent use was estimated based on occupation, industry and era, using a bibliographic database of published exposure levels and exposure determinants. Unconditional logistic regression was used to calculate ORs adjusted for frequency matching variables age group and sex, and age and education. Additional analyses were limited to 904 participants who donated blood specimens (excluding controls reporting a previous diagnosis of cancer) genotyped for glutathione-S-transferases GSTP1, GSTM3 and GSTT1. Individuals with functional GST genes might convert chlorinated solvents crossing the blood-brain barrier into cytotoxic metabolites. RESULTS Both estimated cumulative exposure (ppm-years) and ever exposure to chlorinated solvents were associated with decreased glioma risk and were statistically significant overall and for women. In analyses comparing participants with a high probability of exposure with the unexposed, no associations were statistically significant. Solvent-exposed participants with functional GST genes were not at increased risk of glioma. CONCLUSIONS We observed no associations of glioma risk and chlorinated solvent exposure. Large pooled studies are needed to explore the interaction of genetic pathways and environmental and occupational exposures in glioma aetiology.
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Affiliation(s)
- Avima M Ruder
- National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Cincinnati, OH, USA.
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Hong WX, Yang L, Chen M, Yang X, Ren X, Fang S, Ye J, Huang H, Peng C, Zhou L, Huang X, Yang F, Wu D, Zhuang Z, Liu J. Proteomic analysis of trichloroethylene-induced alterations in expression, distribution, and interactions of SET/TAF-Iα and two SET/TAF-Iα-binding proteins, eEF1A1 and eEF1A2, in hepatic L-02 cells. Toxicol Appl Pharmacol 2012; 263:259-72. [DOI: 10.1016/j.taap.2012.06.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 06/24/2012] [Accepted: 06/25/2012] [Indexed: 12/01/2022]
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Karami S, Colt JS, Schwartz K, Davis FG, Ruterbusch JJ, Munuo SS, Wacholder S, Stewart PA, Graubard BI, Rothman N, Chow WH, Purdue MP. A case-control study of occupation/industry and renal cell carcinoma risk. BMC Cancer 2012; 12:344. [PMID: 22873580 PMCID: PMC3502582 DOI: 10.1186/1471-2407-12-344] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 07/09/2012] [Indexed: 01/22/2023] Open
Abstract
Background The role of occupation in the etiology of renal cell carcinoma (RCC) is unclear. Here, we investigated associations between employment in specific occupations and industries and RCC, and its most common histologic subtype, clear cell RCC (ccRCC). Methods Between 2002 and 2007, a population-based case–control study of Caucasians and African Americans (1,217 cases; 1,235 controls) was conducted within the Detroit and Chicago metropolitan areas to investigate risk factors for RCC. As part of this study, occupational histories were ascertained through in-person interviews. We computed odds ratios (ORs) and 95% confidence intervals (CIs) relating occupation and industry to RCC risk using adjusted unconditional logistic regression models. Results Employment in the agricultural crop production industry for five years or more was associated with RCC (OR = 3.3 [95% CI = 1.0-11.5]) and ccRCC in particular (OR = 6.3 [95% CI = 1.7-23.3], P for trend with duration of employment = 0.0050). Similarly, RCC risk was elevated for employment of five years or longer in non-managerial agricultural and related occupations (ORRCC = 2.1 [95% CI = 1.0-4.5]; ORccRCC = 3.1 [95% CI = 1.4-6.8]). Employment in the dry-cleaning industry was also associated with elevated risk (ORRCC = 2.0 [95% CI = 0.9-4.4], P for trend = 0.093; ORccRCC = 3.0 [95% CI = 1.2-7.4], P for trend = 0.031). Suggestive elevated associations were observed for police/public safety workers, health care workers and technicians, and employment in the electronics, auto repair, and cleaning/janitorial services industries; protective associations were suggested for many white-collar jobs including computer science and administrative occupations as well employment in the business, legislative, and education industries. Conclusions Our findings provide support for an elevated risk of RCC in the agricultural and dry-cleaning industries and suggest that these associations may be stronger for the ccRCC subtype. Additional studies are needed to confirm these findings.
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Affiliation(s)
- Sara Karami
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, 6120 Executive Boulevard, MSC 7242, Bethesda, MD 20892-7242, USA.
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