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Karam ZM, Baba Salari M, Anjom Shoaa A, Dehghan Kouhestani S, Bahram Nejad A, Ashourzadeh S, Zangouyee MR, Bazrafshani MR. Impact of oxidative stress SNPs on sperm DNA damage and male infertility in a south-east Iranian population. Reprod Fertil Dev 2022; 34:633-643. [PMID: 35361312 DOI: 10.1071/rd21305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 02/04/2022] [Indexed: 12/20/2022] Open
Abstract
AIM We examined four single nucleotide polymorphisms in four antioxidant genes (PON1 , CAT , GPx1 and SOD2 ) in 100 infertility cases and 100 controls from an Iranian population-based case-control study to confirm the assumption that polymorphisms in oxidative stress genes increase the risk of sperm DNA damage and idiopathic male infertility. METHODS Restriction fragment length polymorphism and tetra-primer amplification refractory mutation system PCR were used to identify genotypes. Sperm DNA damage was assessed using the Sperm Chromatin Dispersion test (Halo Sperm), and the total antioxidant capacity of seminal fluid was determined using the FRAP assay. KEY RESULTS Our findings demonstrated that alleles Arg-PON1 (rs662) and Ala-MnSOD (rs4880) variant genotypes were considerably linked with a higher risk of male infertility. CONCLUSIONS Linear regression analysis revealed that those with the PON1 Gln192Arg or SOD2 Val16Ala variants have significantly higher levels of sperm DNA fragmentation and lower levels of the total antioxidant capacity in seminal fluid. IMPLICATIONS These findings suggest that genetic differences in antioxidant genes may be linked to oxidative stress, sperm DNA damage, and idiopathic male infertility.
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Affiliation(s)
- Zahra Miri Karam
- Department of Medical Genetics, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran; and Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Milad Baba Salari
- Department of Medical Genetics, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Ahmad Anjom Shoaa
- Department of Medical Genetics, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Somaye Dehghan Kouhestani
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Moddares University, Tehran, Iran; and Dr. Bazrafshani's Medical Genetic Laboratory, Kerman, Iran
| | | | - Sareh Ashourzadeh
- Afzalipour Clinical Center for Infertility, Kerman University of Medical Sciences, Kerman, Iran
| | - Moahammad Reza Zangouyee
- Department of Medical Genetics, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Reza Bazrafshani
- Department of Medical Genetics, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran; and Centre for Integrated Genomic Medical Research (CIGMR), University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, UK
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Trechera P, Moreno T, Córdoba P, Moreno N, Amato F, Cortés J, Zhuang X, Li B, Li J, Shangguan Y, Dominguez AO, Kelly F, Mhadhbi T, Jaffrezo JL, Uzu G, Querol X. Geochemistry and oxidative potential of the respirable fraction of powdered mined Chinese coals. Sci Total Environ 2021; 800:149486. [PMID: 34391157 DOI: 10.1016/j.scitotenv.2021.149486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
This study evaluates geochemical and oxidative potential (OP) properties of the respirable (finer than 4 μm) fractions of 22 powdered coal samples from channel profiles (CP4) in Chinese mined coals. The CP4 fractions extracted from milled samples of 22 different coals were mineralogically and geochemically analysed and the relationships with the OP evaluated. The evaluation between CP4/CP demonstrated that CP4 increased concentrations of anatase, Cs, W, Zn and Zr, whereas sulphates, Fe, S, Mo, Mn, Hf and Ge decreased their CP4 concentrations. OP results from ascorbic acid (AA), glutathione (GSH) and dithiothreitol (DTT) tests evidenced a clear link between specific inorganic components of CP4 with OPAA and the organic fraction of OPGSH and OPDTT. Correlation analyses were performed for OP indicators and the geochemical patterns of CP4. These were compared with respirable dust samples from prior studies. They indicate that Fe (r = 0.83), pyrite (r = 0.66) and sulphate minerals (r = 0.42) (tracing acidic species from pyrite oxidation), followed by S (r = 0.50) and ash yield (r = 0.46), and, to a much lesser extent, Ti, anatase, U, Mo, V and Pb, are clearly linked with OPAA. Moreover, OPGSH correlation was identified by organic matter, as moisture (r = 0.73), Na (r = 0.56) and B (r = 0.51), and to a lesser extent by the coarse particle size, Ca and carbonate minerals. In addition, Mg (r = 0.70), B (r = 0.47), Na (r = 0.59), Mn, Ba, quartz, particle size and Sr regulate OPDTT correlations. These became more noticeable when the analysis was done for samples of the same type of coal rank, in this case, bituminous.
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Affiliation(s)
- Pedro Trechera
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (CSIC), 08034 Barcelona, Spain; Department of Natural Resources and Environment, Industrial and TIC Engineering (EMIT-UPC), 08242 Manresa, Spain.
| | - Teresa Moreno
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (CSIC), 08034 Barcelona, Spain
| | - Patricia Córdoba
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (CSIC), 08034 Barcelona, Spain
| | - Natalia Moreno
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (CSIC), 08034 Barcelona, Spain
| | - Fulvio Amato
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (CSIC), 08034 Barcelona, Spain
| | - Joaquim Cortés
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (CSIC), 08034 Barcelona, Spain
| | - Xinguo Zhuang
- Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of Education, Wuhan 430074, China
| | - Baoqing Li
- Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of Education, Wuhan 430074, China
| | - Jing Li
- Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of Education, Wuhan 430074, China
| | - Yunfei Shangguan
- Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of Education, Wuhan 430074, China
| | - Ana Oliete Dominguez
- MRC-PHE Centre for Environment and Health, King's College London, London SE1 9NH, UK
| | - Frank Kelly
- MRC-PHE Centre for Environment and Health, King's College London, London SE1 9NH, UK
| | - Takoua Mhadhbi
- Univ. Grenoble Alpes, IRD, CNRS, Grenoble INP, IGE (UMR 5001), 38000 Grenoble, France
| | - Jean Luc Jaffrezo
- Univ. Grenoble Alpes, IRD, CNRS, Grenoble INP, IGE (UMR 5001), 38000 Grenoble, France
| | - Gaelle Uzu
- Univ. Grenoble Alpes, IRD, CNRS, Grenoble INP, IGE (UMR 5001), 38000 Grenoble, France
| | - Xavier Querol
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Research Council (CSIC), 08034 Barcelona, Spain; Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of Education, Wuhan 430074, China.
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Batool AI, Naveed NH, Aslam M, da Silva J, Rehman MFU. Coal Dust-Induced Systematic Hypoxia and Redox Imbalance among Coal Mine Workers. ACS Omega 2020; 5:28204-28211. [PMID: 33163803 PMCID: PMC7643248 DOI: 10.1021/acsomega.0c03977] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/06/2020] [Indexed: 05/26/2023]
Abstract
Continuous inhalation of coal dust among coal workers leads to a variety of disorders. The present study aims to evaluate the potential oxidative stress associated with coal dust generated from coal mining activities among exposed workers through the antioxidant enzyme system, including superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH). In this study cohort, intensive coal mine workers were assessed for antioxidant variations. Blood samples were collected from dust-exposed workers (engaged in different activities at coal mines; n = 311) and residents of the same city (nonexposed, control group; n = 50). The workers' exposure to coal dust was categorized based on working area (administrative group, surface workers, underground workers), working hours (up to 8 h and more than 8 h), and time of service. The results showed significantly altered activities of SOD, CAT, and GSH among the whole exposed group and its categories compared to the control group. A significant difference was also observed between high- and low-exposure groups. Statistical analysis revealed a negative correlation between antioxidant activity (catalase and SOD) and coal dust levels. Besides, coal exposure was associated with the time of service, smoking status, and dietary habits. The findings of this study reveal higher oxidative stress among highly exposed coal mine workers (underground workers > surface workers > administrative group > nonexposed group), and longer working hours have more pronounced adverse effects on workers' health.
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Affiliation(s)
- Aima Iram Batool
- Department
of Zoology, University of Sargodha, Sargodha 40100, Pakistan
| | - Naima Huma Naveed
- Department
of Botany, University of Sargodha, Sargodha 40100, Pakistan
| | - Mehwish Aslam
- School
of Biological Science, University of the
Punjab, Lahore 54600, Pakistan
| | - Juliana da Silva
- Laboratory
of Genetic Toxicology, Lutheran University
of Brazil (ULBRA) & La Salle University (UniLaSalle), Canoas, RS 92425-020, Brazil
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Abstract
There are a growing number of people entering underground spaces. However, underground spaces have unique environmental characteristics, and little is known about their effects on human health. It is crucial to elucidate the effects of the underground space environment on the health of humans and other organisms. This paper reviews the effects of hypoxia, toxic atmospheric particles, and low background radiation in the underground space environment on living organisms from the perspective of oxidative stress. Most studies have revealed that living organisms maintained in underground space environments exhibit obvious oxidative stress, which manifests as changes in oxidants, antioxidant enzyme activity, genetic damage, and even disease status. However, there are few relevant studies, and the pathophysiological mechanisms have not been fully elucidated. There remains an urgent need to focus on the biological effects of other underground environmental factors on humans and other organisms as well as the underlying mechanisms. In addition, based on biological research, exploring means to protect humans and living organisms in underground environments is also essential.
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Affiliation(s)
- Hongbiao Yu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Anesthesiology, Nanchong Central Hospital, Nanchong, China
| | - Yijie Gao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Rong Zhou
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
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Killian B, Yuan TH, Tsai CH, Chiu THT, Chen YH, Chan CC. Emission-related Heavy Metal Associated with Oxidative Stress in Children: Effect of Antioxidant Intake. Int J Environ Res Public Health 2020; 17:ijerph17113920. [PMID: 32492875 PMCID: PMC7312654 DOI: 10.3390/ijerph17113920] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/22/2020] [Accepted: 05/30/2020] [Indexed: 12/13/2022]
Abstract
Heavy metals, the common pollutants emitted from industrial activities, are believed to cause harmful effects, partially through the mechanism of elevated oxidative stress, and antioxidant intake has been hypothesized to provide a potential protective effect against oxidative stress. This study aims to investigate the heavy metal exposure and the associated oxidative damage of young children living near a petrochemical complex and to assess the protective effect of antioxidant intake. There were 168 children recruited from the kindergartens near a huge petrochemical complex, with 87 as the high exposure group and 81 as the low exposure group. Urinary concentrations of eleven metals were detected by inductively coupled plasma mass spectrometry, and four biomarkers of oxidative stress were measured in urine by liquid chromatography-tandem mass spectrometry. The food frequency questionnaire was collected to assess participants’ intake of antioxidants. Multiple linear regression was performed to determine the predictors of metals for oxidative stress and to measure the beneficial effect of antioxidants. Weighted quantile sum regression was performed to determine the contributors among metals to the oxidative stress. Results showed that high exposure group had significantly higher concentrations of chromium, manganese, nickel, arsenic, strontium, cadmium, and lead when compared to those in low exposure group. There was no obviously difference on the total antioxidant intake and dietary profile between two groups. The elevated levels of two oxidative stress markers were significantly associated with most of the urinary metal concentrations in all study subjects after adjusting confounders, while no significant association was found between oxidative stress and antioxidant intake. Among the metals, mercury and strontium showed the dominated contributions for elevated levels of oxidative stress. It concluded that higher metal exposure was associated with elevated oxidative stress but with no protective effect by antioxidant intake among the young children residents near a petrochemical industry.
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Affiliation(s)
- Brittany Killian
- Master of Public Health Degree Program, College of Public Health, National Taiwan University, No. 17, Xu-Zhou Road, Taipei 10055, Taiwan;
| | - Tzu-Hsuen Yuan
- Institute of Environmental and Occupational Health Science, College of Public Health, National Taiwan University, No. 17, Xu-Zhou Road, Taipei 10055, Taiwan; (T.-H.Y.); (Y.-H.C.)
- Innovation and Policy Center for Population Health and Sustainable Environment (Population Health Research Center, PHRC), College of Public Health, National Taiwan University, No. 17, Xu-Zhou Road, Taipei 10055, Taiwan
| | - Cheng-Hsien Tsai
- National Taiwan University Hospital, Yunlin Branch, No.579, Sec. 2, Yunlin Rd., Douliu City, Yunlin County 64041, Taiwan;
| | - Tina H. T. Chiu
- Department of Nutritional Science, Fu-Jen Catholic University, No. 510, Zhongzheng Rd., Xinzhang Dist., New Taipei City 24205, Taiwan;
| | - Yi-Hsuan Chen
- Institute of Environmental and Occupational Health Science, College of Public Health, National Taiwan University, No. 17, Xu-Zhou Road, Taipei 10055, Taiwan; (T.-H.Y.); (Y.-H.C.)
| | - Chang-Chuan Chan
- Institute of Environmental and Occupational Health Science, College of Public Health, National Taiwan University, No. 17, Xu-Zhou Road, Taipei 10055, Taiwan; (T.-H.Y.); (Y.-H.C.)
- Innovation and Policy Center for Population Health and Sustainable Environment (Population Health Research Center, PHRC), College of Public Health, National Taiwan University, No. 17, Xu-Zhou Road, Taipei 10055, Taiwan
- Correspondence:
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Pedroso-Fidelis GDS, Farias HR, Mastella GA, Boufleur-Niekraszewicz LA, Dias JF, Alves MC, Silveira PCL, Nesi RT, Carvalho F, Zocche JJ, Pinho RA. Pulmonary oxidative stress in wild bats exposed to coal dust: A model to evaluate the impact of coal mining on health. Ecotoxicol Environ Saf 2020; 191:110211. [PMID: 31978763 DOI: 10.1016/j.ecoenv.2020.110211] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/11/2020] [Accepted: 01/12/2020] [Indexed: 06/10/2023]
Abstract
This study aimed to verify possible alterations involving histological and oxidative stress parameters in the lungs of wild bats in the Carboniferous Basin of Santa Catarina (CBSC) state, Southern Brazil, as a means to evaluate the impact of coal dust on the health of wildlife. Specimens of frugivorous bat species Artibeus lituratus and Sturnira lilium were collected from an area free of coal dust contamination and from coal mining areas. Chemical composition, histological parameters, synthesis of oxidants and antioxidant enzymes, and oxidative damage in the lungs of bats were analyzed. Levels of Na, Cl, Cu, and Br were higher in both species collected in the CBSC than in the controls. Levels of K and Rb were higher in A. lituratus, and levels of Si, Ca, and Fe were higher in S. lilium collected in the carboniferous basin. Both bat species inhabiting the CBSC areas exhibited an increase in the degree of pulmonary emphysema compared to their counterparts collected from control areas. Sturnira lilium showed increased reactive oxygen species (ROS) and 2',7'-dichlorofluorescein (DCF) levels, while A. lituratus showed a significant decrease in nitrite levels in the CBSC samples. Superoxide dismutase (SOD) activity did not change significantly; however, the activity of catalase (CAT) and levels of glutathione (GSH) decreased in the A. lituratus group from CBSC compared to those in the controls. There were no differences in NAD(P)H quinone dehydrogenase 1 protein (NQO1) abundance or nitrotyrosine expression among the different groups of bats. Total thiol levels showed a significant reduction in A. lituratus from CBSC, while the amount of malondialdehyde (MDA) was higher in both A. lituratus and S. lilium groups from coal mining areas. Our results suggested that bats, especially A. lituratus, living in the CBSC could be used as sentinel species for harmful effects of coal dust on the lungs.
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Affiliation(s)
- Giulia Dos Santos Pedroso-Fidelis
- Laboratory of Experimental Physiopathology, Graduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Hémelin Resende Farias
- Laboratory of Experimental Physiopathology, Graduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Gustavo Antunes Mastella
- Laboratory of Neurosciences, Graduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Liana Appel Boufleur-Niekraszewicz
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Johnny Ferraz Dias
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marcio Correa Alves
- Laboratório de Ecologia de Paisagem e de Vertebrados, Programa de Pós-Graduação em Ciências Ambientais, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Experimental Physiopathology, Graduate Program in Health Sciences, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Renata Tiscoski Nesi
- Laboratory of Exercise Biochemistry in Health, Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Fernando Carvalho
- Laboratório de Zoologia e Ecologia de Vertebrados, Programa de Pós-Graduação em Ciências Ambientais, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil
| | - Jairo José Zocche
- Laboratório de Ecologia de Paisagem e de Vertebrados, Programa de Pós-Graduação em Ciências Ambientais, Universidade do Extremo Sul Catarinense, Criciúma, Santa Catarina, Brazil.
| | - Ricardo Aurino Pinho
- Laboratory of Exercise Biochemistry in Health, Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
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Espitia-Pérez L, da Silva J, Brango H, Espitia-Pérez P, Pastor-Sierra K, Salcedo-Arteaga S, de Souza CT, Dias JF, Hoyos-Giraldo LS, Gómez-Pérez M, Salcedo-Restrepo D, Henriques JA. Genetic damage in environmentally exposed populations to open-pit coal mining residues: Analysis of buccal micronucleus cytome (BMN-cyt) assay and alkaline, Endo III and FPG high-throughput comet assay. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2018; 836:24-35. [DOI: 10.1016/j.mrgentox.2018.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 04/25/2018] [Accepted: 06/01/2018] [Indexed: 12/22/2022]
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Gogoi K, Manna P, Dey T, Kalita J, Unni BG, Ozah D, Baruah PK. Circulatory heavy metals (cadmium, lead, mercury, and chromium) inversely correlate with plasma GST activity and GSH level in COPD patients and impair NOX4/Nrf2/GCLC/GST signaling pathway in cultured monocytes. Toxicol In Vitro 2018; 54:269-279. [PMID: 30359721 DOI: 10.1016/j.tiv.2018.10.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/08/2018] [Accepted: 10/19/2018] [Indexed: 01/17/2023]
Abstract
This study aims to examine the hypothesis that circulatory heavy metals may be associated with lung function decline and lower plasma GST activity and GSH level in COPD patients via activating monocytes mediated by impairing the NOX4/Nrf2/GCLC/GST signaling pathway. Results showed that the blood levels of heavy metals (cadmium, lead, mercury, and chromium) were significantly higher in COPD patients of coal mine site compared to the healthy controls. The levels of heavy metals in COPD patients were significantly and negatively correlated with lung function, GST activity, and GSH level. Using flowcytometry, fluorescence spectroscopy, and immunoblotting studies we have further demonstrated that treatment with individual heavy metals dose-dependently increased the NOX4 protein expression, intracellular ROS production, and decreased the Nrf2, GCLC, and GST protein expression, GST activity, and GSH level in THP-1 monocytes. None of the treatment caused any change in cell viability compared to control. In conclusion, this study suggests that circulatory heavy metals in COPD patients of coal mine site weakened the lung function, decreased the plasma GST activity and GSH level via impairing the NOX4/Nrf2/GCLC/GST signaling pathway in monocytes, which may cause monocyte activation and initiate the COPD pathophysiology.
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Affiliation(s)
- Kabita Gogoi
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research, CSIR-North East Institute of Science and Technology Campus, Jorhat 785006, Assam, India
| | - Prasenjit Manna
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research, CSIR-North East Institute of Science and Technology Campus, Jorhat 785006, Assam, India
| | - Tapan Dey
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
| | - Jatin Kalita
- Academy of Scientific and Innovative Research, CSIR-North East Institute of Science and Technology Campus, Jorhat 785006, Assam, India; Research Planning and Business Development Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India.
| | - Bala Gopalan Unni
- Research Cell, Assam Downtown University, Guwahati 781026, Assam, India
| | - Dibyajyoti Ozah
- Clinical Centre, CSIR-North East Institute of Science and Technology, Jorhat, Assam, India
| | - Pranab Kumar Baruah
- Clinical Centre, CSIR-North East Institute of Science and Technology, Jorhat, Assam, India
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Caballero-gallardo K, Olivero-verbel J. Mice housed on coal dust-contaminated sand: A model to evaluate the impacts of coal mining on health. Toxicol Appl Pharmacol 2016; 294:11-20. [DOI: 10.1016/j.taap.2016.01.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 01/01/2023]
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Cui X, Xing J, Liu Y, Zhou Y, Luo X, Zhang Z, Han W, Wu T, Chen W. COPD and levels of Hsp70 (HSPA1A) and Hsp27 (HSPB1) in plasma and lymphocytes among coal workers: a case-control study. Cell Stress Chaperones 2015; 20:473-81. [PMID: 25620081 PMCID: PMC4406932 DOI: 10.1007/s12192-015-0572-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 01/08/2015] [Accepted: 01/09/2015] [Indexed: 12/17/2022] Open
Abstract
This case-control study aimed to investigate whether the levels of Hsp70 (HSPA1A) and Hsp27 (HSPB1) in plasma and lymphocytes were associated with the risk of chronic obstructive pulmonary disease (COPD) among coal workers. A total of 76 COPD cases and 48 age-matched healthy controls from a group of coal workers were included. The case group consisted of 35 COPD patients whose condition was complicated with coal workers' pneumoconiosis (CWP) and 41 COPD patients without CWP. Heat shock proteins (Hsps) in plasma and lymphocytes were detected by ELISA and flow cytometry, respectively. Multiple logistic regression models were applied to estimate the association between Hsp levels and COPD risk. Our results showed that plasma Hsp70 and lymphocyte Hsp27 levels were significantly higher and plasma Hsp27 levels were significantly lower in COPD cases than in controls (p < 0.01). No significant differences in lymphocyte Hsp70 levels were found between COPD cases and the matched subjects. Higher plasma Hsp70 levels (odds ratio (OR) = 13.8, 95 % confidence interval (CI) = 5.7-33.5) and lower plasma Hsp27 levels (OR = 4.6, 95 % CI = 2.0-10.5) were significantly associated with an increased risk of COPD after adjusting for confounders. Higher lymphocyte Hsp27 levels were only associated with an increased risk of COPD with CWP (OR = 6.6, 95 % CI = 2.0-22.1) but not with an increased risk of COPD without CWP (OR = 3.0, 95 % CI = 0.9-8.9). Additionally, there were strong joint effects of different Hsps on COPD risk. These results showed that higher levels of plasma Hsp70 and lower levels of plasma Hsp27 might be associated with an increased risk of COPD among coal workers. They may have the potential to serve as monitoring markers for COPD in coal workers.
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Affiliation(s)
- Xiuqing Cui
- />Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- />Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingcai Xing
- />Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- />Department of Respiratory Diseases of the General Hospital of Xishan Coal & Power Group, Co. Ltd., Shanxi, 030053 China
| | - Yuewei Liu
- />Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- />Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yun Zhou
- />Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- />Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin Luo
- />Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- />Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhihong Zhang
- />Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- />Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenhui Han
- />Department of Respiratory Diseases of the General Hospital of Xishan Coal & Power Group, Co. Ltd., Shanxi, 030053 China
| | - Tangchun Wu
- />Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- />Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weihong Chen
- />Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- />Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Setiawan B, Kania N, Nugrahenny D, Nurdiana N, Widodo MA. Subchronic inhalation of particulate matter 10 coal dust induces atherosclerosis in the aorta of diabetic and nondiabetic rats. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.bgm.2014.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Hung YP, Teng CJ, Liu CJ, Hu YW, Hung MH, Tzeng CH, Liu CY, Yeh CM, Chen TJ, Chiou TJ. Cancer risk among patients with coal workers' pneumoconiosis in Taiwan: a nationwide population-based study. Int J Cancer 2014; 134:2910-6. [PMID: 24242366 DOI: 10.1002/ijc.28611] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 10/22/2013] [Indexed: 12/17/2022]
Abstract
This study is aimed to evaluate the cancer risk among patients with coal workers' pneumoconiosis (CWP) using a nationwide population-based dataset. Patients without previous cancer who had been diagnosed with CWP and followed-up for more than 1 year between 1997 and 2006 were recruited from the Taiwan National Health Insurance database. Standardized incidence ratios (SIRs) of cancers in CWP patients were calculated and compared to the cancer incidence in the general population. Risk factors for cancer development were also analyzed. After a median follow-up of 9.68 years, 954 cancers developed among 8,051 recruited CWP patients, with a follow-up of 69,398 person-years. The SIR for all cancers was 1.12 [95% confidence interval (CI) 1.04-1.18]. Males older than 80 years had a SIR of 1.27 (95% CI: 1.06-1.51). The SIRs of esophageal (1.76, 95% CI: 1.24-2.44), gastric (1.42, 95% CI: 1.13-1.76), liver and biliary tract (1.18, 95% CI: 1.01-1.37) and lung and mediastinal (1.45, 95% CI: 1.26-1.66) cancers were significantly higher in the CWP group than in the general population. Multivariate analysis showed that age ≥ 60 years [hazard ratio (HR) 1.70, 95% CI: 1.41-2.05), male gender (HR = 1.79, 95% CI: 1.44-2.23) and liver cirrhosis (HR = 3.99, 95% CI: 2.89-5.51) were significant predictors of cancer development in patients with CWP. We concluded that patients with CWP, especially elderly males, were at increased risk of cancer. Age, male gender and liver cirrhosis were independent risk factors for cancer development.
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Affiliation(s)
- Yi-Ping Hung
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
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13
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de Oliveira BFA, Chacra APM, Frauches TS, Vallochi A, Hacon S. A curated review of recent literature of biomarkers used for assessing air pollution exposures and effects in humans. J Toxicol Environ Health B Crit Rev 2014; 17:369-410. [PMID: 25495790 DOI: 10.1080/10937404.2014.976893] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This is a cross-sectional review of biomarkers used in air pollution research from January 2009 through December 2012. After an initial keyword search in PubMed retrieving 426 articles, a comprehensive abstract review identified 54 articles of experimental design that used biomarkers of exposure or effect in human studies in the area of air pollution research during this specified time period. A thorough bibliographic search of the included articles retrieved an additional 65 articles meeting the inclusion criteria. This review presents these 119 studies and the 234 biomarkers employed in these air pollution research investigations. Data presented are 70 biomarkers of exposure with 54% relating to polycyclic aromatic hydrocarbons, 36% volatile organic carbons, and 10% classified as other. Of the 164 biomarkers of effect, 91 and 130 were used in investigating effects of short-term and chronic exposure, respectively. Results of biomarkers used in short-term exposure describe different lag times and pollutant components such as primary and secondary pollutants, and particle number associated with corresponding physiological mechanisms including airway inflammation, neuroinflammation, ocular, metabolic, early endothelial dysfunction, coagulation, atherosclerosis, autonomic nervous system, oxidative stress, and DNA damage. The review presents three different exposure scenarios of chronic, occupational, and extreme exposure scenarios (indoor cooking) with associated biomarker findings presented in three broad categories of (1) immune profile, (2) oxidative stress, and (3) DNA damage. This review offers a representation of the scope of data being explored by air pollution researchers through the use of biomarkers and has deliberately been restricted to this particular subject rather than an extensive or in-depth review. This article provides a contextualization of air pollution studies conducted with biomarkers in human subjects in given areas while also integrating this complex body of information to offer a useful review for investigators in this field of study.
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Affiliation(s)
- Beatriz Fátima Alves de Oliveira
- a Public Health and Environment Post-Graduation , National School of Public Health at Oswaldo Cruz Foundation , Rio de Janeiro , Brazil
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Kania N, Mayangsari E, Setiawan B, Nugrahenny D, Tony F, Wahyuni ES, Widodo MA. The Effects of Eucheuma cottonii on Signaling Pathway Inducing Mucin Synthesis in Rat Lungs Chronically Exposed to Particulate Matter 10 (PM10) Coal Dust. J Toxicol 2013; 2013:528146. [PMID: 24228027 DOI: 10.1155/2013/528146] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 08/31/2013] [Accepted: 09/02/2013] [Indexed: 01/25/2023] Open
Abstract
This study was aimed at investigating the effects of Eucheuma cottonii (EC) in oxidative stress and the signaling for mucin synthesis in rat lungs chronically exposed to coal dust. Coal dust with concomitant oral administration of ethanolic extract of EC at doses of 150 (EC150) or 300 mg/kg BW (EC300) compared to exposed to PM10 coal dust at doses of 6.25 (CD6.25), 12.5 (CD12.5), or 25 mg/m3 (CD25) (an hour daily for 6 months) and nonexposure group (control). The malondialdehyde (MDA), epidermal growth factor (EGF), transforming growth factor (TGF)-α, epidermal growth factor receptor (EGFR), and MUC5AC levels were determined in the lung. The administration of EC300 significantly (p < 0.05) reduced the MDA levels in groups exposed to all doses of coal dust compared to the respective coal dust-exposed nonsupplemented groups. Although not statistically significant,EC reduced the EGF levels and EGFR expressions in CD12.5 and CD25 groups and decreased the TGF-α, level and MUC5AC expression in CD25 group compared to the respective coal dust-exposed nonsupplemented groups. EC was able to decrease oxidative stress and was also able to decrease signaling for mucin synthesis, at least a part, via reducing the ligand in chronic coal dust exposure.
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Gasparotto J, Somensi N, Caregnato FF, Rabelo TK, DaBoit K, Oliveira MLS, Moreira JCF, Gelain DP. Coal and tire burning mixtures containing ultrafine and nanoparticulate materials induce oxidative stress and inflammatory activation in macrophages. Sci Total Environ 2013; 463-464:743-753. [PMID: 23856402 DOI: 10.1016/j.scitotenv.2013.06.086] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 06/20/2013] [Accepted: 06/21/2013] [Indexed: 06/02/2023]
Abstract
Ultra-fine and nano-particulate materials resulting from mixtures of coal and non-coal fuels combustion for power generation release to the air components with toxic potential. We evaluated toxicological and inflammatory effects at cellular level that could be induced by ultrafine/nanoparticles-containing ashes from burning mixtures of coal and tires from an American power plant. Coal fly ashes (CFA) samples from the combustion of high-S coal and tire-derived fuel, the latter about 2-3% of the total fuel feed, in a 100-MW cyclone utility boiler, were suspended in the cell culture medium of RAW 264.7 macrophages. Cell viability, assessed by MTT reduction, SRB incorporation and contrast-phase microscopy analysis demonstrated that CFA did not induce acute toxicity. However, CFA at 1mg/mL induced an increase of approximately 338% in intracellular TNF-α, while release of this proinflammatory cytokine was increased by 1.6-fold. The expression of the inflammatory mediator CD40 receptor was enhanced by 2-fold, the receptor for advanced glycation endproducts (RAGE) had a 5.7-fold increase and the stress response protein HSP70 was increased nearly 12-fold by CFA at 1mg/mL. Although CFA did not induce cell death, parameters of oxidative stress and reactive species production were found to be altered at several degrees, such as nitrite accumulation (22% increase), DCFH oxidation (3.5-fold increase), catalase (5-fold increase) and superoxide dismutase (35% inhibition) activities, lipoperoxidation (4.2 fold-increase) and sulfhydryl oxidation (40% decrease in free SH groups). The present results suggest that CFA containing ultra-fine and nano-particulate materials from coal and tire combustion may induce sub-chronic cell damage, as they alter inflammatory and oxidative stress parameters at the molecular and cellular levels, but do not induce acute cell death.
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Affiliation(s)
- Juciano Gasparotto
- Center of Oxidative Stress Research, Tuiskon Dick Department of Biochemistry, Institute of Health Basic Sciences, Federal University of Rio Grande do Sul (UFRGS) Brazil.
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Silins I, Högberg J. Combined toxic exposures and human health: biomarkers of exposure and effect. Int J Environ Res Public Health 2011; 8:629-47. [PMID: 21556171 PMCID: PMC3083662 DOI: 10.3390/ijerph8030629] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Accepted: 02/21/2011] [Indexed: 01/03/2023]
Abstract
Procedures for risk assessment of chemical mixtures, combined and cumulative exposures are under development, but the scientific database needs considerable expansion. In particular, there is a lack of knowledge on how to monitor effects of complex exposures, and there are few reviews on biomonitoring complex exposures. In this review we summarize articles in which biomonitoring techniques have been developed and used. Most examples describe techniques for biomonitoring effects which may detect early changes induced by many chemical stressors and which have the potential to accelerate data gathering. Some emphasis is put on endocrine disrupters acting via epigenetic mechanisms and on carcinogens. Solid evidence shows that these groups of chemicals can interact and even produce synergistic effects. They may act during sensitive time windows and biomonitoring their effects in epidemiological studies is a challenging task.
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Affiliation(s)
- Ilona Silins
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 171 77 Stockholm, Sweden.
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Wilhelm Filho D, Avila S, Possamai FP, Parisotto EB, Moratelli AM, Garlet TR, Inácio DB, Torres MA, Colepicolo P, Dal-Pizzol F. Antioxidant therapy attenuates oxidative stress in the blood of subjects exposed to occupational airborne contamination from coal mining extraction and incineration of hospital residues. Ecotoxicology 2010; 19:1193-1200. [PMID: 20535553 DOI: 10.1007/s10646-010-0503-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/12/2010] [Indexed: 05/29/2023]
Abstract
Coal mining and incineration of solid residues of health services (SRHS) generate several contaminants that are delivered into the environment, such as heavy metals and dioxins. These xenobiotics can lead to oxidative stress overgeneration in organisms and cause different kinds of pathologies, including cancer. In the present study the concentrations of heavy metals such as lead, copper, iron, manganese and zinc in the urine, as well as several enzymatic and non-enzymatic biomarkers of oxidative stress in the blood (contents of lipoperoxidation = TBARS, protein carbonyls = PC, protein thiols = PT, α-tocopherol = AT, reduced glutathione = GSH, and the activities of glutathione S-transferase = GST, glutathione reductase = GR, glutathione peroxidase = GPx, catalase = CAT and superoxide dismutase = SOD), in the blood of six different groups (n = 20 each) of subjects exposed to airborne contamination related to coal mining as well as incineration of solid residues of health services (SRHS) after vitamin E (800 mg/day) and vitamin C (500 mg/day) supplementation during 6 months, which were compared to the situation before the antioxidant intervention (Ávila et al., Ecotoxicology 18:1150-1157, 2009; Possamai et al., Ecotoxicology 18:1158-1164, 2009). Except for the decreased manganese contents, heavy metal concentrations were elevated in all groups exposed to both sources of airborne contamination when compared to controls. TBARS and PC concentrations, which were elevated before the antioxidant intervention decreased after the antioxidant supplementation. Similarly, the contents of PC, AT and GSH, which were decreased before the antioxidant intervention, reached values near those found in controls, GPx activity was reestablished in underground miners, and SOD, CAT and GST activities were reestablished in all groups. The results showed that the oxidative stress condition detected previously to the antioxidant supplementation in both directly and indirectly subjects exposed to the airborne contamination from coal dusts and SRHS incineration, was attenuated after the antioxidant intervention.
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Affiliation(s)
- D Wilhelm Filho
- Laboratório de Ecofisiologia Respiratória, ECZ, CCB, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brazil.
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Possamai FP, Júnior SÁ, Parisotto EB, Moratelli AM, Inácio DB, Garlet TR, Dal-Pizzol F, Filho DW. Antioxidant intervention compensates oxidative stress in blood of subjects exposed to emissions from a coal electric-power plant in South Brazil. Environ Toxicol Pharmacol 2010; 30:175-180. [PMID: 21787649 DOI: 10.1016/j.etap.2010.05.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2009] [Revised: 05/13/2010] [Accepted: 05/13/2010] [Indexed: 05/31/2023]
Abstract
In the process of energy generation, particulate matter (PM) emissions derived from coal combustion expose humans to serious occupational diseases, which are associated with overgeneration of reactive oxygen species (ROS). The purpose of the present study is to better understand the relations between PM exposure derived from a coal electric-power plant and the oxidative damage in subjects (n=20 each group) directly (working at the burning area) or indirectly (working at the office or living in the vicinity of the electric-power plant=group of residents) exposed to airborne contamination, before and after daily supplementation with vitamins C (500mg) and E (800mg) during six months, which were compared to non-exposed subjects (control group). Several biomarkers of oxidative stress were examined such as levels of thiobarbituric acid reactive substances (TBARS), protein carbonyls (PC), protein thiols (PT) and vitamin E in plasma, levels of reduced glutathione (GSH) in whole blood, and of activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR) and glutathione S-transferase (GST) in red cells. Before supplementation, TBARS and PC levels were significantly increased, levels of GSH and vitamin E were decreased, while the activities of SOD and CAT were increased in workers groups and GST were increased in all groups in compared to controls. After the antioxidant supplementation essentially all these biomarkers were normalized to control levels. The antioxidant intervention was able to confer a protective effect of vitamins C and E against the oxidative insult associated with airborne contamination derived from coal burning of an electric-power plant.
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Affiliation(s)
- Fabricio Pagani Possamai
- Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Cidade Universitária, 88040-900 Florianópolis, Brazil; Laboratório de Fisiopatologia Experimental, Universidade do Extremo Sul Catarinense, 88806-000 Criciúma, SC, Brazil
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Badraoui R, Abdelmoula NB, Rebai T. Erythrocytes oxidative damage and hematological effects of 2,4,4',5-tetrachlorodiphenyl sulfone in rats. ACTA ACUST UNITED AC 2010; 63:479-82. [PMID: 20382005 DOI: 10.1016/j.etp.2010.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2010] [Revised: 02/18/2010] [Accepted: 03/17/2010] [Indexed: 10/19/2022]
Abstract
The effects of subchronic exposure to tetrachlorodiphenyl sulfone (TCDS) on hematological parameters [white blood cells (WBC), red blood cells (RBC), mean cell volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), hemoglobin (Hb) and hematocrite (Ht) levels] were examined. Oxidative stress in erythrocytes was also assessed by measuring thiobarbituric acid reactive substances (TBARS) and enzyme antioxidant activities [superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx)]. TCDS was administered orally, dissolved in water, ad libitum to 12 female rats at 28.9 mg/kg/day for 6 or 12 weeks. Results showed that TCDS induced significant decreases in RBC, Hb, and Ht. Whereas MCV, MCH, and MCHC remain unchanged and WBC increased only in the second period of the study. Moreover erythrocyte TBARS level increased, and antioxidant enzyme (SOD, GPx, and CAT) activities decreased. We concluded that TCDS intoxication promotes erythrocyte oxidative damage and disrupt hematological constituents in rats.
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Affiliation(s)
- Riadh Badraoui
- Laboratoire d'Histologie-Embryologic, Faculté de Médecine de Sfax, Tunisie.
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Possamai FP, Avila S, Budni P, Backes P, Parisotto EB, Rizelio VM, Torres MA, Colepicolo P, Wilhelm Filho D. Occupational airborne contamination in South Brazil: 2. Oxidative stress detected in the blood of workers of incineration of hospital residues. Ecotoxicology 2009; 18:1158-1164. [PMID: 19626439 DOI: 10.1007/s10646-009-0387-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Accepted: 07/04/2009] [Indexed: 05/28/2023]
Abstract
One of the most useful methods for elimination of solid residues of health services (SRHS) is incineration. However, it also provokes the emission of several hazardous air pollutants such as heavy metals, furans and dioxins, which produce reactive oxygen species and oxidative stress. The present study, which is parallel to an accompanied paper (Avila Jr. et al., this issue), investigated several enzymatic and non-enzymatic biomarkers of oxidative stress in the blood (contents of vitamin E, lipoperoxidation = TBARS, reduced glutathione = GSH, oxidized glutathione = GSSG, and activities of glutathione S-transferase = GST, glutathione reductase = GR, glutathione peroxidase = GPx, catalase = CAT and superoxide dismutase = SOD), in three different groups (n = 20 each) exposed to airborne contamination associated with incineration of SRHS: workers directly (ca. 100 m from the incinerator) and indirectly exposed (residents living ca. 5 km the incineration site), and controls (non-exposed subjects). TBARS and GSSG levels were increased whilst GSH, TG and alpha-tocopherol contents were decreased in workers and residents compared to controls. Increased GST and CAT activities and decreased GPx activities were detected in exposed subjects compared to controls, while GR did not show any difference among the groups. In conclusion, subjects directly or indirectly exposed to SRHS are facing an oxidative insult and health risk regarding fly ashes contamination from SRHS incineration.
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Affiliation(s)
- F P Possamai
- Laboratório de Fisiopatologia Experimental, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
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