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Wultsch G, Nersesyan A, Kundi M, Fenech M, Eibensteiner F, Mišík M, Krupitza G, Ferk F, Knasmüller S. Use of micronucleus cytome assays with buccal cells for the detection of genotoxic effects: A systematic review and meta-analysis of occupational exposures to metals. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2024; 794:108510. [PMID: 39004337 DOI: 10.1016/j.mrrev.2024.108510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 07/16/2024]
Abstract
Micronucleus (MN) assays with buccal cells are at present widely used to investigate occupational exposures to genotoxic carcinogens. This article describes their use for the monitoring of metal exposed workers. We found in total 73 relevant articles, in the majority (97 %) increased MN and/or other nuclear anomalies were reported. Most studies were realized in South East Asia and South America. A variety of different occupations was studied including welders, electroplaters, painters, workers in battery recycling and production, tannery workers, dental technicians, miners, workers in foundries and smelters, and also subjects working in waste recycling, glass, aluminum and steel production. In many investigations the effects increased with the duration of the working period. The quality of individual studies was evaluated with a quality score tool. The number of cells was in most studies sufficient and DNA-specific stains were used. However, many studies have shortcomings, e.g. they focused solely on MN formation and did not evaluate anomalies, which provide additional information about the stability of the genetic material and acute cytotoxic effects. Only 35 % of the investigations contain quantitative information about exposures to metals and other toxicants. In 6 of these studies, correlations were observed between the concentrations of specific metals (As, Pb, Cr, Cd) in body fluids and MN frequencies. Taken together, the available data indicate that the MN assay can be used to detect chromosomal damage in metal exposed groups; furthermore, it enables also comparisons between subgroups differing in regard to their exposure and allows an estimation of the efficiency of protective measures. The exposure of workers to metals is currently controlled with chemical analytical measurements only, MN assays with buccal cells could contribute to further improve the safety at workplaces as they reflect the biological consequences including synergistic and antagonistic interactions between toxicants.
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Affiliation(s)
| | - Armen Nersesyan
- Center for Cancer Research, Medical University of Vienna, Vienna A-1090, Austria
| | - Michael Kundi
- Center for Public Health, Department of Environmental Health, Medical University of Vienna, Vienna, Austria
| | - Michael Fenech
- Health and Biomedical Innovation, UniSA Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia
| | - Florian Eibensteiner
- Center for Cancer Research, Medical University of Vienna, Vienna A-1090, Austria
| | - Miroslav Mišík
- Center for Cancer Research, Medical University of Vienna, Vienna A-1090, Austria
| | - Georg Krupitza
- Department of Pathology, Medical University of Vienna, Vienna A-1090, Austria
| | - Franziska Ferk
- Center for Cancer Research, Medical University of Vienna, Vienna A-1090, Austria
| | - Siegfried Knasmüller
- Center for Cancer Research, Medical University of Vienna, Vienna A-1090, Austria.
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Sani A, Abdullahi IL, Khan MI, Cao C. Analyses of oxidative DNA damage among coal vendors via single cell gel electrophoresis and quantification of 8-hydroxy-2'-deoxyguanosine. Mol Cell Biochem 2023:10.1007/s11010-023-04826-9. [PMID: 37594629 DOI: 10.1007/s11010-023-04826-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 08/06/2023] [Indexed: 08/19/2023]
Abstract
Looking at the development status of Nigeria and other developing nations, most low-income and rural households often use coal as a source of energy which necessitates its trade very close to the communities. Moreover, the effects of exposure to coal mining activities are rarely explored or yet to be studied, not to mention the numerous street coal vendors in Nigeria. This study investigated the oxidative stress levels in serum and urine through the biomarker 8-OHdG and DNA damage via single cell gel electrophoresis (alkaline comet assay). Blood and urine levels of 8-OHdG from 130 coal vendors and 130 population-based controls were determined by ELISA. Alkaline comet assay was also performed on white blood cells for DNA damage. The average values of 8-OHdG in serum and urine of coal vendors were 22.82 and 16.03 ng/ml respectively, which were significantly greater than those detected in controls (p < 0.001; 15.46 and 10.40 ng/ml of 8-OHdG in serum and urine respectively). The average tail length, % DNA in tail and olive tail moment were 25.06 μm, 18.71% and 4.42 respectively for coal vendors. However, for controls, the average values were 4.72 μm, 3.63% and 1.50 for tail length, % DNA in tail and olive tail moment respectively which were much lower than coal vendors (p < 0.001). Therefore, prolonged exposure to coal dusts could lead to higher serum and urinary 8-OHdG and significant DNA damage in coal vendors observed in tail length, % DNA in tail, and olive tail moment by single cell gel electrophoresis. It is therefore established that coal vendors exhibit a huge risk from oxidative stress and assessment of 8-OHdG with single cell gel electrophoresis has proven to be a feasible tool as biomarkers of DNA damage.
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Affiliation(s)
- Ali Sani
- Department of Instrument Science and Engineering, School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
- Department of Biological Sciences, Faculty of Life Sciences, Bayero University, Kano, 3011, Nigeria.
| | - Ibrahim Lawal Abdullahi
- Department of Biological Sciences, Faculty of Life Sciences, Bayero University, Kano, 3011, Nigeria
| | - Muhammad Idrees Khan
- Department of Instrument Science and Engineering, School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - ChengXi Cao
- Department of Instrument Science and Engineering, School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
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León-Mejía G, Rueda RA, Pérez Pérez J, Miranda-Guevara A, Moreno OF, Quintana-Sosa M, Trindade C, De Moya YS, Ruiz-Benitez M, Lemus YB, Rodríguez IL, Oliveros-Ortiz L, Acosta-Hoyos A, Pacheco-Londoño LC, Muñoz A, Hernández-Rivera SP, Olívero-Verbel J, da Silva J, Henriques JAP. Analysis of the cytotoxic and genotoxic effects in a population chronically exposed to coal mining residues. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:54095-54105. [PMID: 36869947 PMCID: PMC10119205 DOI: 10.1007/s11356-023-26136-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
During coal mining activities, many compounds are released into the environment that can negatively impact human health. Particulate matter, polycyclic aromatic hydrocarbons (PAHs), metals, and oxides are part of the complex mixture that can affect nearby populations. Therefore, we designed this study to evaluate the potential cytotoxic and genotoxic effects in individuals chronically exposed to coal residues from peripheral blood lymphocytes and buccal cells. We recruited 150 individuals who lived more than 20 years in La Loma-Colombia and 120 control individuals from the city of Barranquilla without a history of exposure to coal mining. In the cytokinesis-block micronucleus cytome (CBMN-Cyt) assay, significant differences in the frequency of micronucleus (MN), nucleoplasmic bridge (NPB), nuclear bud (NBUD), and apoptotic cells (APOP) were observed between the two groups. In the buccal micronucleus cytome (BM-Cyt) assay, a significant formation of NBUD, karyorrhexis (KRX), karyolysis (KRL), condensed chromatin (CC), and binucleated (BN) cells was observed in the exposed group. Considering the characteristics of the study group, a significant correlation for CBMN-Cyt was found between NBUD and vitamin consumption, between MN or APOP and meat consumption, and between MN and age. Moreover, a significant correlation for BM-Cyt was found between KRL and vitamin consumption or age, and BN versus alcohol consumption. Using Raman spectroscopy, a significant increase in the concentration of DNA/RNA bases, creatinine, polysaccharides, and fatty acids was detected in the urine of individuals exposed to coal mining compared to the control group. These results contribute to the discussion on the effects of coal mining on nearby populations and the development of diseases due to chronic exposure to these residues.
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Affiliation(s)
- Grethel León-Mejía
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia.
| | - Robinson Alvarez Rueda
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Jose Pérez Pérez
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Alvaro Miranda-Guevara
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Ornella Fiorillo Moreno
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Milton Quintana-Sosa
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Cristiano Trindade
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Yurina Sh De Moya
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Martha Ruiz-Benitez
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Yesit Bello Lemus
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Ibeth Luna Rodríguez
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Ludis Oliveros-Ortiz
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Antonio Acosta-Hoyos
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Leonardo C Pacheco-Londoño
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Amner Muñoz
- Grupo de Investigación en Química Y Biología, Universidad del Norte, Barranquilla, Colombia
| | - Samuel P Hernández-Rivera
- ALERT DHS Center of Excellence for Explosives Research, Department of Chemistry, University of Puerto Rico, Mayagüez, PR, 00681, USA
| | - Jesús Olívero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, Colombia
| | - Juliana da Silva
- Laboratório de Genética Toxicológica, Universidade Luterana Do Brasil (ULBRA), Canoas-RS, Brazil
| | - João Antonio Pêgas Henriques
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
- Programa de Pós-Graduação Em Biotecnologia E Em Ciências Médicas, Universidade Do Vale Do Taquari - UNIVATES, Lajeado, RS, Brazil
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Idrees F, Batool AI, Rehman MFU, Habib SS, Akram A. Assessment of Genetic Damage in Coal Miners of Punjab, Pakistan. Biol Trace Elem Res 2022; 201:3144-3151. [PMID: 36094694 DOI: 10.1007/s12011-022-03412-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/02/2022] [Indexed: 11/26/2022]
Abstract
Coal miners are continuously exposed to coal mine dust and airborne particulate that act as a potential risk to their health. The present study evaluates the DNA damage in coal miners using the Buccal Micronucleus Cytome (BMCyt) assay. The samples of the blood and buccal epithelial cells of 40 coal miners and 20 control subjects were taken from coal mines of Pail and Padhrar, Pakistan, to establish buccal anomaly frequencies of metal levels in the blood. Besides this, work history and duration hours were also analyzed. Results revealed that micronucleus frequencies positively correlated with the metal concentrations in the miner's blood. The change in the extent of nuclear damage per unit change in the year was 0.170 for micronuclei; however, with addition in each year of working experience, nuclear buds and broken egged nuclei increased by 0.316 and 0.194 units, where each year increases karyolysis by 0.349 units and karyorrhexis by 0.308 units, respectively. An increase in work hours and working years was positively correlated with cytogenetic damage. Nuclear damage in coal miners due to occupational exposure is obvious and increases with increasing work experience. Hence, the Buccal Micronucleus Cytome assay has proved to be an effective cytogenetic biomonitoring tool for assessing genetic and nuclear damage in coal miners.
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Affiliation(s)
- Fariha Idrees
- Department of Zoology, University of Sargodha, Sargodha, Punjab, 40100, Pakistan.
| | - Aima Iram Batool
- Department of Zoology, University of Sargodha, Sargodha, Punjab, 40100, Pakistan
| | | | - Syed Sikandar Habib
- Department of Zoology, University of Sargodha, Sargodha, Punjab, 40100, Pakistan
| | - Aksa Akram
- Department of Zoology, University of Sargodha, Sargodha, Punjab, 40100, Pakistan
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Bigliardi AP, Dos Santos M, Fernandes CLF, Garcia EM, Dos Santos MET, Jones MH, Soares MCF, Baisch ALM, da Silva Júnior FMR. Lung function among residents from the largest coal region in Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:46803-46812. [PMID: 35169947 DOI: 10.1007/s11356-022-19242-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Coal mining and burning activities in coal-fired power plants are among the most polluting activities in developing countries. In Brazil, the Candiota coal deposit concentrates 40% of the national mineral coal. Although, previous studies indicate several negative health outcomes to residents of this coal region, there is no information about lung function. Thus, this study aimed to evaluate lung function by spirometry among residents from the largest coal mining region of Brazil and its related factors. It was carried out a cross-sectional study with 300 male adults residing in four cities from this region. Socioeconomic, demographic, life style, and health conditions were collected through a structured questionnaire, and lung function was assessed by spirometry. Almost 18% of the residents have disorders in pulmonary function. There was significant statistical difference in the spirometry main parameters between the cities. Candiota city (host city of coal exploration activities) have the highest prevalence of obstructive ventilatory disorder. Curiously, upper economic class had significant higher risk of altered lung function (P<0.001), as well as inappropriate sewage destination (P<0.001). Residents of Candiota city had 20% higher risk of altered lung function. Regarding air quality, the PM10, SO2, and NO2 of the region were 20.6± 3.9, 7.0± 2.2, and 6.0± 1.6, respectively. Two air quality stations exceed the limit of 20 μg/m3 to PM10 proposed by Brazilian legislation and WHO, and three stations had PM10 quite close to the limit. This study points out the need for urgent action to protect residents from this coal mining region.
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Affiliation(s)
- Ana Paula Bigliardi
- Laboratório de Ensaios Farmacológicos e Toxicológicos-LEFT, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande do Sul-FURG, Av. Itália, km 8, Campus Carreiros, CEP, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, CEP, Rio Grande, RS, 96203-900, Brazil
| | - Marina Dos Santos
- Laboratório de Ensaios Farmacológicos e Toxicológicos-LEFT, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande do Sul-FURG, Av. Itália, km 8, Campus Carreiros, CEP, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, CEP, Rio Grande, RS, 96203-900, Brazil
| | - Caroline Lopes Feijo Fernandes
- Laboratório de Ensaios Farmacológicos e Toxicológicos-LEFT, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande do Sul-FURG, Av. Itália, km 8, Campus Carreiros, CEP, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, CEP, Rio Grande, RS, 96203-900, Brazil
| | - Edariane Menestrino Garcia
- Laboratório de Ensaios Farmacológicos e Toxicológicos-LEFT, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande do Sul-FURG, Av. Itália, km 8, Campus Carreiros, CEP, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, CEP, Rio Grande, RS, 96203-900, Brazil
| | - Marcelli Evans Telles Dos Santos
- Laboratório de Ensaios Farmacológicos e Toxicológicos-LEFT, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande do Sul-FURG, Av. Itália, km 8, Campus Carreiros, CEP, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, CEP, Rio Grande, RS, 96203-900, Brazil
| | - Marcus Herbert Jones
- Escola de Medicina, PUCRS, Av. Ipiranga 6681 Prédio 40-9° andar CEP, Porto Alegre, RS, 90619-900, Brazil
| | - Maria Cristina Flores Soares
- Laboratório de Ensaios Farmacológicos e Toxicológicos-LEFT, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande do Sul-FURG, Av. Itália, km 8, Campus Carreiros, CEP, Rio Grande, RS, 96203-900, Brazil
| | - Ana Luíza Muccillo Baisch
- Laboratório de Ensaios Farmacológicos e Toxicológicos-LEFT, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande do Sul-FURG, Av. Itália, km 8, Campus Carreiros, CEP, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, CEP, Rio Grande, RS, 96203-900, Brazil
| | - Flavio Manoel Rodrigues da Silva Júnior
- Laboratório de Ensaios Farmacológicos e Toxicológicos-LEFT, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande do Sul-FURG, Av. Itália, km 8, Campus Carreiros, CEP, Rio Grande, RS, 96203-900, Brazil.
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, CEP, Rio Grande, RS, 96203-900, Brazil.
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Arbo MD, Garcia SC, Sarpa M, Da Silva Junior FM, Nascimento SN, Garcia ALH, Da Silva J. Brazilian workers occupationally exposed to different toxic agents: A systematic review on DNA damage. MUTATION RESEARCH/GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 879-880:503519. [PMID: 35914865 DOI: 10.1016/j.mrgentox.2022.503519] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/23/2022] [Accepted: 06/21/2022] [Indexed: 10/17/2022]
Abstract
The evaluation of genotoxicity in workers exposed to different toxic agents is very important, especially considering the association between these exposures in a chronic context and DNA damage. Assessing biomarkers of exposure and, when possible, early biomarkers of effect, contributes to elucidating the potential toxic mechanisms involved in genotoxicity and its contribution to chronic non-communicable diseases. In Brazil, the biggest country in South America, workers are exposed to hazardous physical and chemical agents. Considering that these exposures occur, in most cases, throughout the worker's whole life, this is an important public health concern in Brazil. Therefore, this systematic review aims to analyze occupational exposure to chemical and physical agents and the association with DNA damage in studies carried out in Brazil from 1980 to 2021. A systematic and comprehensive literature search was performed in different databases based on occupational exposure to chemical and physical agents and DNA damage. Only full articles on studies that investigated experimental evidence on occupational exposure in Brazil and assessed DNA damage were included, amounting to 89 articles. Five main occupational exposure groups were identified: pesticides (36%), organic solvents (20%), dust and particles (16%), metals (11%), and ionizing radiation (6%). Another group called "others" included studies (11%) that did not fall into these main groups. It was found that comet assay and micronucleus tests are the most adopted methods to detect DNA damage. Occupational exposures were most associated with DNA damage. However, further improvements in study design would be needed to better characterize the association between biomonitoring and DNA damage, particularly to account for confounding factors.
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Kahl VFS, da Silva J. Inorganic elements in occupational settings: A review on the effects on telomere length and biology. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2021; 872:503418. [PMID: 34798938 DOI: 10.1016/j.mrgentox.2021.503418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/31/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
The past decades have shown that telomere crisis is highly affected by external factors. Effects of human exposure to xenobiotics on telomere length (TL), particularly in their workplace, have been largely studied. TL has been shown to be an efficient biomarker in occupational risk assessment. This is the first review focusing on studies about the effects on TL from occupational exposures to metals (lead [Pb] and mixtures), and particulate matter (PM) related to inorganic elements. Data from 15 studies were evaluated regarding occupational exposure to metals and PM-associated inorganic elements and impact on TL. Potential complementary analyses and subjects' background (age, length of employment and gender) were also assessed. There was limited information on the correlations between work length and TL dynamics, and that was also true for the correlation between age and TL. Results indicated that TL is affected differently across the types of occupational exposure investigated in this review, and even within the same exposure, a variety of effects can be observed. Fifty-three percent of the studies observed decreased TL in occupational exposure among welding fumes, open-cast coal mine, Pb and PM industries workers. Two studies focused particularly on the levels of metals and association with TL, and both linear and non-linear associations were found. Interestingly, TL modifications were accompanied by increase in DNA damage in 7 out of 8 studies that investigated it, measured either by Cytokinesis-block Micronucleus Assay or Comet assay. Five studies also investigated oxidative stress parameters, and 4 of them found increased levels of oxidative damage along with TL impairment. Oxidative stress is one of the main mechanisms by which telomeres are affected due to their high guanine content. Our review highlights the need of further studies accessing TL in simultaneous occupational exposure to mixtures of xenobiotics.
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Affiliation(s)
- Vivian F Silva Kahl
- The University of Queensland Diamantina Institute, The University of Queensland, Faculty of Medicine, 37 Kent Street, Woolloongabba, Queensland 4102, Australia; Translational Research Institute, 37 Kent Street, Woolloongabba, Queensland 4102, Australia.
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Post Graduate Program in Cellular and Molecular Biology Applied to Health, Lutheran University of Brazil, Av Farroupilha 8001, Canoas, Rio Grande do Sul, 92425-900, Brazil; LaSalle University (UniLaSalle), Av Victor Barreto 2288, Canoas, Rio Grande do Sul, 92010-000, Brazil.
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da Silva Bonifácio A, de Lima Brum R, Tavella RA, Ramires PF, Lessa IM, Dos Santos M, da Silva Júnior FMR. Human health risk assessment of metals and anions in surface water from a mineral coal region in Brazil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:567. [PMID: 34383141 DOI: 10.1007/s10661-021-09359-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Coal mining releases high concentration elements to the environment, which can be deposited in surface water, causing several human health problems. Candiota mine in the south of Brazil is the largest coal reserves in the country, representing approximately 40% of total national coal reserves. Therefore, the present study aimed to estimate the chronic daily dose and the non-carcinogenic risk index for metals and anions in surface waters of Candiota Region, using the USEPA protocols for Human Health Risk Assessment. A total of eight water samples were collected over a distance of up to 15 km from the emission sources of the thermal power generation companies, then the Chronic Daily Intake (CDI), Hazard Quotient (HQ), Hazard Index (HI), and sum of Hazard Index (ΣHI) were calculated. All the elements and anions evaluated showed natural concentrations for continental fresh waters according to Brazilian legislation, except Pb. Individually, none of the metals Pb, As, Cd, Ni, and Se or anions F- and NO3- showed an HI value greater than 1. However, the sum of HI (ΣHI) (five metals and two anions) by sample point showed values close to 1, for one of the eight points analyzed. Pb and Fe were the elements that most contribute to the risk values in the sample points of the study area. Although, there is no human health risk in this scenario, this investigation highlight priority elements to future investigations in coal mine areas. In the current region, Pb and F- as priority elements for future studies.
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Affiliation(s)
- Alicia da Silva Bonifácio
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
| | - Rodrigo de Lima Brum
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
| | - Ronan Adler Tavella
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
| | - Paula Florêncio Ramires
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
| | - Ingrid Medeiros Lessa
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Educação Ambiental, Instituto de Educação (IE), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
| | - Marina Dos Santos
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
| | - Flavio Manoel Rodrigues da Silva Júnior
- Instituto de Ciências Biológicas (ICB), Universidade Federal Do Rio Grande-FURG, Rio Grande Do Sul, Avenida Itália, km 8, Campus Carreiros, Rio Grande, Brasil, CEP 96203-900
- Programa de Pós Graduação Em Ciências da Saúde, Faculdade de Medicina (FAMED), Universidade Federal do Rio Grande-FURG Rua Visconde de Paranaguá, Rio Grande Do Sul, Centro, Rio Grande, Brasil, CEP 102 96203-900
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9
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Genetic damage in coal and uranium miners. Mutat Res 2021; 866:503348. [PMID: 33985692 DOI: 10.1016/j.mrgentox.2021.503348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 03/02/2021] [Accepted: 03/12/2021] [Indexed: 01/23/2023]
Abstract
Mining has a direct impact on the environment and on the health of miners and is considered one of the most hazardous occupations worldwide. Miners are exposed to several occupational health risks, including genotoxic substances, which may cause adverse health effects, such as cancer. This review summarizes the relation between DNA damage and mining activities, focusing on coal and uranium miners. The search was performed using electronic databases, including original surveys reporting genetic damage in miners. Additionally, a temporal bibliometric analysis was performed using an electronic database to create a map of cooccurrence terms. The majority of studies were performed with regard to occupational exposure to coal, whereas genetic damage was assessed mainly through chromosomal aberrations (CAs), micronuclei (MNs) and comet assays. The bibliometric analysis demonstrated associations of coal exposure with silicosis and pneumoconiosis, uranium miners with lung cancer and tumors and some associated factors, such as age, smoking, working time and exposure to radiation. Significantly higher DNA damage in miners compared to nonexposed groups was observed in most of the studies. The timeline reveals that classic biomarkers (comet assay, micronucleus test and chromosomal aberrations) are still important tools to assess genotoxic/mutagenic damage in occupationally exposed miners; however, newer studies concerning genetic polymorphisms and epigenetic changes in miners are being conducted. A major challenge is to investigate further associations between miners and DNA damage and to encourage further studies with miners of other types of ores.
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10
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DNA damage assessment with buccal micronucleus cytome assay in Turkish coal miners. Arh Hig Rada Toksikol 2020; 70:283-289. [PMID: 32623860 DOI: 10.2478/aiht-2019-70-3332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 11/01/2019] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to assess DNA damage in Turkish coal miners with the buccal micronucleus cytome (BMCyt assay as the least invasive and therefore most practical method that may find wider application in coal miner biomonitoring. Buccal epithelial cell samples were taken from 54 coal miners and 42 controls from Zonguldak, Turkey to establish their micronucleus (MN), binucleus (BN), condensed chromatin (CC), karyorrhectic (KHC), karyolytic (KYL), nuclear bud (NBUD), and pyknotic (PYC) frequencies. We also analysed the effects of confounding factors such as age, years of work at the mine, smoking, alcohol drinking, and use of protective equipment on differences in MN frequencies. Two miners had confirmed and three suspect pneumoconiosis, whereas 49 displayed normal chest radiographs. MN, BN, KHC, and NBUD frequencies were significantly higher in coal miners than controls. Years of work at the mine also showed a significant effect on buccal MN frequencies in coal miners, but we found no correlation between MN frequencies and age, smoking, and alcohol consumption. In conclusion, BMCyt assay proved itself an accurate and practical screening method, as it can detect DNA damage much earlier than pneumoconiosis develops.
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11
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Rohr P, da Silva GF, Vicentini VEP, Almeida IVD, Dos Santos RA, Takahashi CS, Goulart MO, da Silva GN, de Oliveira LB, Grisolia CK, Piau TB, Bassi Branco CL, Reis ÉDM, de Oliveira Galvão MF, de Medeiros SRB, Monteiro MS, de Vasconcelos Lopes RA, Brandão SFI, Batista NJC, Paz MFCJ, da Silva J. Buccal micronucleus cytome assay: Inter-laboratory scoring exercise and micronucleus and nuclear abnormalities frequencies in different populations from Brazil. Toxicol Lett 2020; 333:242-250. [PMID: 32841739 DOI: 10.1016/j.toxlet.2020.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/14/2020] [Accepted: 08/20/2020] [Indexed: 11/25/2022]
Abstract
The Buccal Micronucleus Cytome Assay (BMCyt) has become an important biomonitoring tool for assessing cytogenetic damage in many studied populations. Each laboratory applies protocols that vary according to the method of collecting and preparing samples. Besides, Brazil is a country of great territorial extensions that received immigrants from various parts of the world with different genetic backgrounds. Therefore, the present study aimed to evaluate the inter-laboratory variation in scoring the same set of slides using the more comprehensive scoring criteria, to standardize the BMCyt protocol, to observe the basal alterations in populations of different Brazilian regions and to compare it with other places around the world. Our results showed that a valuable number of laboratories participated, ten laboratories from different regions of the country, for the validation of the BMCyt in human biomonitoring studies, resulting in the 804 healthy individuals. This was possible because we observed: a range of measures needs to be considered, such as the baseline frequency of DNA damage and cell death in non-exposed individuals; age when grouped showed an influence on DNA damage, although when evaluated by group we did not see an influence; association between smoking habit and all endpoints of the BMCyt (except karyolytic cells) was evident; the basal MN frequency, in the majority of groups, follows those around the world; and the BMCyt was confirmed as a good health status biomarker. We emphasize the need for constant discussions on the parameters of cell death due to greater difficulty among the analyzers.
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Affiliation(s)
- Paula Rohr
- Laboratório de Genética Toxicológica, Programa de Pós- Graduação em Biologia Celular e Molecular Aplicada à Saúde (PPGBioSaúde), Universidade Luterana do Brasil, ULBRA, Canoas, RS, Brazil.
| | - Gabrieli Flesch da Silva
- Laboratório de Genética Toxicológica, Programa de Pós- Graduação em Biologia Celular e Molecular Aplicada à Saúde (PPGBioSaúde), Universidade Luterana do Brasil, ULBRA, Canoas, RS, Brazil
| | | | - Igor Vivian de Almeida
- Laboratório de Mutagênese e Monitoramento Ambiental, Universidade Estadual de Maringá, UEM, Maringá, PR, Brazil
| | - Raquel Alves Dos Santos
- Laboratório de Genética e Biologia Molecular, Universidade de Franca, UNIFRAN, Franca, SP, Brazil
| | - Catarina Satie Takahashi
- Departmento de Genética, Escola de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil; Departmento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Mirian Oliveira Goulart
- Laboratório de Genética e Biologia Molecular, Universidade de Franca, UNIFRAN, Franca, SP, Brazil
| | - Glenda Nicioli da Silva
- Laboratório de Pesquisas Clínicas, Universidade Federal de Ouro Preto, UFOP, Ouro Preto, MG, Brazil
| | | | - Cesar K Grisolia
- Laboratório de Genética Toxicológica Instituto de Biologia, Universidade de Brasilia, UnB, Brasília, DF, Brazil
| | - Tathyana B Piau
- Laboratório de Genética Toxicológica Instituto de Biologia, Universidade de Brasilia, UnB, Brasília, DF, Brazil
| | | | - Érica de Melo Reis
- Laboratório de Mutagênese, Universidade Federal de Mato Grosso, UFMT, Cuiabá, MT, Brazil
| | | | | | - Magaly Sales Monteiro
- Núcleo Bioprospecção e Experimentação Molecular-NUBEM, Centro Universitário INTA-UNINTA, Sobral, CE, Brazil
| | | | | | | | | | - Juliana da Silva
- Laboratório de Genética Toxicológica, Programa de Pós- Graduação em Biologia Celular e Molecular Aplicada à Saúde (PPGBioSaúde), Universidade Luterana do Brasil, ULBRA, Canoas, RS, Brazil; Laboratório de Genética Toxicológica, Programa de Pós- Graduação Profissional em Saúde e Desenvolvimento Humano (PPGSDH), Universidade La Salle, UniLaSalle, Canoas, RS, Brazil.
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12
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Meyer AV, Tolochko TA, Minina VI, Timofeeva AA, Larionov AV. Complex Approach to Evaluating Genotoxicity from Occupational Factors in Coal Mining Industry. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420050105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Neurobehavioral performance of PAH exposure in male coal miners in Shanxi, China: a cross-sectional study. Int Arch Occup Environ Health 2020; 93:707-714. [DOI: 10.1007/s00420-020-01521-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 01/27/2020] [Indexed: 12/24/2022]
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de Souza MR, Rohr P, Kahl VFS, Kvitko K, Cappetta M, Lopes WM, Simon D, da Silva J. The influence of polymorphisms of xenobiotic-metabolizing and DNA repair genes in DNA damage, telomere length and global DNA methylation evaluated in open-cast coal mining workers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:109975. [PMID: 31787382 DOI: 10.1016/j.ecoenv.2019.109975] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 06/10/2023]
Abstract
Coal plants represent one of the main sources of environmental pollution due to the combustion process of this mineral and the consequent release of gases and particles which, in significant quantities, can lead to a potential risk to health and the environment. The susceptibility of individuals to the genotoxic effects of coal mining can be modulated by genetic variations in the xenobiotic detoxification and DNA repair processes. The aim of this study was to evaluate if xenobiotic metabolism polymorphism, base excision repair polymorphisms and non-homologous end joining repair polymorphism, could modify individual susceptibility to genomic instability and epigenetic alterations induced in workers by occupational exposure to coal. In this study, polymerase chain reaction was used to examine the polymorphic sites. The sample population comprising 70 coal mine workers and 71 workers non-exposed to coal. Our results demonstrated the effect of individual genotypes on different biomarkers evaluated. Significant decrease in % of global DNA methylation were observed in CYP1A1 Val/- exposed individuals compared to CYP1A1 Ile/Ile individuals. Coal workers who carried the XRCC4 Ile/Ile genotype showed decrease NBUD frequencies, while the XRCC4 Thr/- genotype was associated with decrease in Buccal micronucleus cells for the group not exposed. No influence of GSTM1 null, GSTT1 null, GSTP1 Ile105Val, hOGG1 Ser326Cys, XRCC1 Arg194Trp polymorphisms was observed. Thus, the current study reinforces the importance of considering the effect of metabolizing and repair variant genotypes on the individual susceptibility to incorporate DNA damage, as these processes act in a coordinated manner to determine the final response to coal exposure.
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Affiliation(s)
- Melissa Rosa de Souza
- Laboratory of Genetic Toxicology, Post-Graduate Program in Cellular and Molecular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Paula Rohr
- Laboratory of Genetic Toxicology, Post-Graduate Program in Cellular and Molecular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | | | - Kátia Kvitko
- Laboratory of Immunogenetics, Post-Graduate Program in Genetics and Molecular Biology (PPGBM), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Mónica Cappetta
- Laboratory of Genetic Epidemiology, Department of Genetics, Medicine School, Universidad de la República, Montevideo, Uruguay
| | - Wilner Martinez Lopes
- Department of Genetic Toxicology and Chromosome Pathology, Instituto de Investigaciones Biologicas Clemente Estable, Montevideo, Uruguay
| | - Daniel Simon
- Laboratory of Human Molecular Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Post-Graduate Program in Cellular and Molecular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil; Laboratory of Genetic Toxicology, La Salle University (UniLaSalle), Canoas, RS, Brazil.
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Wunnapuk K, Pothirat C, Manokeaw S, Phetsuk N, Chaiwong W, Phuackchantuck R, Prapamontol T. PM 10-related DNA damage, cytokinetic defects, and cell death in COPD patients from Chiang Dao district, Chiang Mai, Thailand. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25326-25340. [PMID: 31254199 DOI: 10.1007/s11356-019-05641-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
Exposure to PM10 generated by biomass burning may reduce lung function and induce cytogenetic effects, especially in chronic obstructive pulmonary disease patients. This study investigated the frequency of DNA-damaged cells, cells with cytokinetic defect, and different types of cell death using a buccal micronucleus cytome assay. The correlations between each biomarker and lung function were investigated. The changes in these biomarkers associated with high pollutant levels (PM10 > 50 μg/m3) and low pollutant levels (PM10 < 50 μg/m3) were evaluated to explore whether PM10 exposure induced genotoxic damages and cytokinetic defects in COPD patients when the daily average PM10 concentration reached above 50 μg/m3. Fifty-eight COPD patients and 26 healthy subjects living in Chiang Dao district, Chiang Mai, Thailand, were recruited in this study. The results revealed that buccal cells with micronuclei (high vs low 1.09 ± 1.95 vs 0.29 ± 0.64 in COPD patients) and binucleated cells (high vs low 11.43 ± 18.68 vs 1.60 ± 1.31 and 7.77 ± 12.76 vs 1.00 ± 1.17 in COPD and healthy subjects, respectively) observed during the high pollutant period were more frequent than in the low pollutant period. Moreover, exposure to PM10 increased the risk of micronucleus induction in COPD patients 295.23-fold.
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Affiliation(s)
- Klintean Wunnapuk
- Division of Toxicology, Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chaicharn Pothirat
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand.
| | - Siriphorn Manokeaw
- Division of Toxicology, Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nittaya Phetsuk
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand
| | - Warawut Chaiwong
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand
| | - Rochana Phuackchantuck
- Research Administration Section, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Tippawan Prapamontol
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
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16
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Hopf NB, Bolognesi C, Danuser B, Wild P. Biological monitoring of workers exposed to carcinogens using the buccal micronucleus approach: A systematic review and meta-analysis. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2019; 781:11-29. [DOI: 10.1016/j.mrrev.2019.02.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 02/12/2019] [Accepted: 02/28/2019] [Indexed: 01/22/2023]
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17
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Savchenko YA, Minina VI, Bakanova ML, Glushkov AN. Genotoxic and Carcinogenic Effects of Industrial Factors in Coal Mining and Coal-Processing Industry (Review). RUSS J GENET+ 2019. [DOI: 10.1134/s1022795419060140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Matzenbacher CA, Da Silva J, Garcia ALH, Cappetta M, de Freitas TRO. Anthropogenic Effects on Natural Mammalian Populations: Correlation Between Telomere Length and Coal Exposure. Sci Rep 2019; 9:6325. [PMID: 31004106 PMCID: PMC6474877 DOI: 10.1038/s41598-019-42804-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 04/09/2019] [Indexed: 12/31/2022] Open
Abstract
The Candiota coal mine in Rio Grande do Sul (RS) is one of the largest in Brazil. Coal is a fossil fuel that causes environmental impacts from its extraction to combustion due to the release of different agents, such as polycyclic aromatic hydrocarbons (PAH) and heavy metals. Ctenomys torquatus are herbivorous and subterranean rodents that dig tunnels with their paws and teeth and can be exposed to coal through contaminated food. Exposure to pollutants can cause DNA damage and affect different tissues, inducing alterations in the population structure and genetic diversity. Our study aimed to evaluate the effect of exposure to coal and its derivatives on the C. torquatus population and to examine the relationship of coal exposure with variations in absolute telomere length (aTL), global DNA methylation and genotoxicity. Our study showed an inverse correlation between telomere length and coal exposure in addition to an increase in DNA damage. The results indicate that coal and its byproducts can contribute to the alteration of the C. torquatus population structure, as evidenced by a reduction in the number of adults.
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Affiliation(s)
- Cristina A Matzenbacher
- Department of Genetics, Federal University of Rio Grande do Sul, C.P. 15053, 91501-970, Porto Alegre, RS, Brazil
| | - Juliana Da Silva
- Laboratory of Genetic Toxicology, Lutheran University of Brazil, ULBRA, Canoas, 92425-900, Rio Grande do Sul, Brazil.
| | - Ana Leticia H Garcia
- Laboratory of Genetic Toxicology, Lutheran University of Brazil, ULBRA, Canoas, 92425-900, Rio Grande do Sul, Brazil.,Laboratory of Ecotoxicology, Postgraduate Program in Environmental Quality, University Feevale, ERS-239, 2755, 93525-075, Novo Hamburgo, RS, Brazil
| | - Mónica Cappetta
- Laboratorio de Epidemiología Genética, Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Thales R O de Freitas
- Department of Genetics, Federal University of Rio Grande do Sul, C.P. 15053, 91501-970, Porto Alegre, RS, 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] [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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20
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de Souza MR, Kahl VFS, Rohr P, Kvitko K, Cappetta M, Lopes WM, da Silva J. Shorter telomere length and DNA hypermethylation in peripheral blood cells of coal workers. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 836:36-41. [DOI: 10.1016/j.mrgentox.2018.03.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 10/31/2017] [Accepted: 03/27/2018] [Indexed: 12/31/2022]
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21
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Paz MFCJ, Sobral ALP, Picada JN, Grivicich I, Júnior ALG, da Mata AMOF, de Alencar MVOB, de Carvalho RM, da Conceição Machado K, Islam MT, de Carvalho Melo Cavalcante AA, da Silva J. Persistent Increased Frequency of Genomic Instability in Women Diagnosed with Breast Cancer: Before, during, and after Treatments. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2846819. [PMID: 30013718 PMCID: PMC6022262 DOI: 10.1155/2018/2846819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 02/13/2018] [Indexed: 12/12/2022]
Abstract
This study aimed to evaluate DNA damage in patients with breast cancer before treatment (background) and after chemotherapy (QT) and radiotherapy (RT) treatment using the Comet assay in peripheral blood and the micronucleus test in buccal cells. We also evaluated repair of DNA damage after the end of RT, as well as the response of patient's cells before treatment with an oxidizing agent (H2O2; challenge assay). Fifty women with a mammographic diagnosis negative for cancer (control group) and 100 women with a diagnosis of breast cancer (followed up during the treatment) were involved in this study. The significant DNA damage was observed by increasing in the index and frequency of damage along with the increasing of the frequency of micronuclei in peripheral blood and cells of the buccal mucosa, respectively. Despite the variability of the responses of breast cancer patients, the individuals presented lesions on the DNA, detected by the Comet assay and micronucleus Test, from the diagnosis until the end of the oncological treatment and were more susceptible to oxidative stress. We can conclude that the damages were due to clastogenic and/or aneugenic effects related to the neoplasia itself and that they increased, especially after RT.
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Affiliation(s)
- Márcia Fernanda Correia Jardim Paz
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, Prédio 22, Sala 22 (4° Andar), 92425-900 Canoas, RS, Brazil
- Laboratory of Genetic Toxicology, PPGCF, Federal University of Piauí, Av. Universitária S/N, Ininga, 64049-550 Teresina, PI, Brazil
- Post-Graduation Program in Biotechnology, RENORBIO, Federal University of Piauí, Av. Universitária, S/N, Ininga, 64049-550 Teresina, PI, Brazil
| | - André Luiz Pinho Sobral
- University Hospital of Piauí, Av. Universitária, S/N, Ininga, 64049-550 Teresina, PI, Brazil
| | - Jaqueline Nascimento Picada
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, Prédio 22, Sala 22 (4° Andar), 92425-900 Canoas, RS, Brazil
| | - Ivana Grivicich
- Laboratory of Cancer Biology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, Prédio 22, Sala 22 (4° Andar), 92425-900 Canoas, RS, Brazil
| | - Antonio Luiz Gomes Júnior
- Laboratory of Genetic Toxicology, PPGCF, Federal University of Piauí, Av. Universitária S/N, Ininga, 64049-550 Teresina, PI, Brazil
- Post-Graduation Program in Biotechnology, RENORBIO, Federal University of Piauí, Av. Universitária, S/N, Ininga, 64049-550 Teresina, PI, Brazil
- Biomedicine Department, UNINOVAFAPI University, Teresina, Brazil
| | - Ana Maria Oliveira Ferreira da Mata
- Laboratory of Genetic Toxicology, PPGCF, Federal University of Piauí, Av. Universitária S/N, Ininga, 64049-550 Teresina, PI, Brazil
- Post-Graduation Program in Biotechnology, RENORBIO, Federal University of Piauí, Av. Universitária, S/N, Ininga, 64049-550 Teresina, PI, Brazil
| | - Marcus Vinícius Oliveira Barros de Alencar
- Laboratory of Genetic Toxicology, PPGCF, Federal University of Piauí, Av. Universitária S/N, Ininga, 64049-550 Teresina, PI, Brazil
- Department of Biochemistry and Pharmacology, Federal University of Piauí, Av. Universitária, S/N, Ininga, 64049-550 Teresina, PI, Brazil
| | - Rodrigo Mendes de Carvalho
- Central Laboratory of Public Health of Piauí, Rua Dezenove de Novembro 1945, Bairro Primavera, 64002-570 Teresina, PI, Brazil
| | - Kátia da Conceição Machado
- Laboratory of Genetic Toxicology, PPGCF, Federal University of Piauí, Av. Universitária S/N, Ininga, 64049-550 Teresina, PI, Brazil
- Post-Graduation Program in Biotechnology, RENORBIO, Federal University of Piauí, Av. Universitária, S/N, Ininga, 64049-550 Teresina, PI, Brazil
| | - Muhammad Torequl Islam
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
| | - Ana Amélia de Carvalho Melo Cavalcante
- Laboratory of Genetic Toxicology, PPGCF, Federal University of Piauí, Av. Universitária S/N, Ininga, 64049-550 Teresina, PI, Brazil
- Post-Graduation Program in Biotechnology, RENORBIO, Federal University of Piauí, Av. Universitária, S/N, Ininga, 64049-550 Teresina, PI, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, Prédio 22, Sala 22 (4° Andar), 92425-900 Canoas, RS, Brazil
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Filippi S, Meschini R, Spognardi S, Papetti P, Angeletti D. Genetic effects in Helix aspersa near a coal plant revealed by the micronucleus test. ECOTOXICOLOGY (LONDON, ENGLAND) 2018; 27:234-243. [PMID: 29404870 DOI: 10.1007/s10646-018-1906-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/19/2018] [Indexed: 06/07/2023]
Abstract
Coal plants can be a major source of mutagenic pollutants. In this study we used the common land snail Helix aspersa, to detect the mutagenic effect of pollution from a coal plant in central Italy applying the micronucleus test (MN) on snail's haemocytes and evaluating trace elements concentration (As Cd, Pb, Hg, and Zn) in soil and snails. Snails from a biological farm were exposed for 13 days in five locations at different distances from the plant. Wild snails collected in the same locations were also analysed. MN frequency in exposed snails was significantly higher in four locations within 10 km from to the plant, with respect to the control and the farthest location. Comparing the MN frequency between farmed and wild snails, a significantly higher frequency emerged for the exposed snails in all locations except the farthest, likely indicating adaptation or selection of the wild organisms due to chronic exposure to pollutants. In natural snails significantly higher MN frequencies with near the plant emerged as well. Trace elements analysis showed significant correlations between MN frequencies and both Zn and As concentrations in soil, for both exposed and wild snails, and Zn and Pb concentrations in exposed snails. Our results were consistent with those previously obtained when evaluating primary DNA damage in natural snails from the same area and show that the snails near the plant were affected by a permanent cytogenetic damage. Moreover, they confirm the suitability of snails for biomonitoring the presence of pollutants with mutagenic effect.
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Affiliation(s)
- Silvia Filippi
- Department of Ecological and Biological Sciences, Tuscia University, Largo dell'Università snc, 01100, Viterbo, Italy
| | - Roberta Meschini
- Department of Ecological and Biological Sciences, Tuscia University, Largo dell'Università snc, 01100, Viterbo, Italy.
| | - Sara Spognardi
- Department of Business Studies, University of Roma Tre, Via Ostiense, 159, 00154, Rome, Italy
| | - Patrizia Papetti
- Department of Economics and Law, Territorial and Products Analysis Laboratory (LAMeT), University of Cassino and Southern Lazio, Via Sant'Angelo, Località Folcara, 03043, Cassino, Italy
| | - Dario Angeletti
- Department of Ecological and Biological Sciences, Tuscia University, Largo dell'Università snc, 01100, Viterbo, Italy
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da Silva Júnior FMR, Tavella RA, Fernandes CLF, Soares MCF, de Almeida KA, Garcia EM, da Silva Pinto EA, Baisch ALM. Genotoxicity in Brazilian coal miners and its associated factors. Hum Exp Toxicol 2017; 37:891-900. [DOI: 10.1177/0960327117745692] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The present study aims to evaluate the potential genotoxic and associated factors among coal miners, divided by degree of exposure. Blood and buccal smears were collected from 158 workers, who actively participate in different activities in coal mining, and 48 individuals living in the same city but do not have participation in coal mining activities (control group). The workers were divided into three different groups, according to the level of contact with coal extraction. A questionnaire intended to identify factors associated with DNA damage was performed in participants. The results regarding oral mucosa micronucleus test showed a significant difference ( p < 0.001) of the worker groups 1 and 2 in relation to the control group, where the group 1 has a higher degree of exposure to coal than group 2. For the lymphocyte micronucleus test and comet assay, there was no significant difference between the exposed groups and control group. There is an association between the outcome and the fact of living in the municipality of the mining company and the exposure to radiation in the last 12 months. Besides, the multivariate analysis showed an association of the tail moment with radiation exposure in the last 12 months. Thus, the findings of this study reveal genotoxicity in oral mucosa cells of workers exposed to coal and that workers with higher degree of contact with coal have a more pronounced response.
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Affiliation(s)
- FMR da Silva Júnior
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - RA Tavella
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - CLF Fernandes
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - MCF Soares
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - KA de Almeida
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - EM Garcia
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - EA da Silva Pinto
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - ALM Baisch
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Rio Grande, Brazil
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Tan C, Lu S, Wang Y, Zhu Y, Shi T, Lin M, Deng Z, Wang Z, Song N, Li S, Yang P, Yang L, Liu Y, Chen Z, Xu K. Long-term exposure to high air pollution induces cumulative DNA damages in traffic policemen. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 593-594:330-336. [PMID: 28346906 DOI: 10.1016/j.scitotenv.2017.03.179] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 03/19/2017] [Accepted: 03/19/2017] [Indexed: 06/06/2023]
Abstract
The specific effects of long-term exposure to high air pollution on human health and biological remain unclear. To explore the adverse health effects as well as biological mechanisms and biomarkers for durative exposure to air pollution, 183 traffic policemen and 88 office policemen were enrolled in this study. The concentration of PM2.5 in both the traffic and office policemen's working environments were obtained. Detailed personal questionnaires were completed and levels of inflammation, oxidative stress and DNA damage markers of all participants were analyzed in this study. The average PM2.5 concentration of the intersections of main roads and the offices of control group were 132.4±48.9μg/m3 and 50.80±38.6μg/m3, respectively. The traffic policemen, who stably exposed to at least 2 times higher PM2.5 in their work area as compared with the control group, have a median average duration of 7.00years, and average cumulative intersection duty time reached 8030h. No statistically significant differences in the levels of inflammation markers were observed between the traffic and office policemen. However, the DNA damage markers in traffic policemen shared significant positive correlation with cumulative intersection duty time and higher than those in the office policemen. Multiple linear regression analysis demonstrated that the increase of cumulative intersection duty time by 1h per day for one year was associated with the increase in 8-hydroxy-20-deoxyguanosine of 0.329% (95% CI: 0.249% to 0.409%), tail DNA of 0.051% (95% CI: 0.041% to 0.061%), micronucleus frequency of 0.036‰ (95% CI: 0.03‰ to 0.043‰), and a decrease in glutathione of 0.482% (95% CI: -0.652% to -0.313%). These findings suggest that long-term exposure to high air pollution could induce cumulative DNA damages, supporting the hypothesis that durative exposure to air pollution is associated with an increased risk of cancer.
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Affiliation(s)
- Chaochao Tan
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Shijie Lu
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Yupeng Wang
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Yan Zhu
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Ting Shi
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Mingyue Lin
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Zhonghua Deng
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Zhu Wang
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Nana Song
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Shuna Li
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Pingting Yang
- Health Management Centre, The Third Xiangya Hospital, Central South University, Changsha 410013, PR China
| | - Liyan Yang
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Yuanyuan Liu
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China
| | - Zhiheng Chen
- Health Management Centre, The Third Xiangya Hospital, Central South University, Changsha 410013, PR China.
| | - Keqian Xu
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, PR China.
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Da Silva Pinto EA, Garcia EM, de Almeida KA, Fernandes CFL, Tavella RA, Soares MCF, Baisch PRM, Muccillo-Baisch AL, da Silva Júnior FMR. Genotoxicity in adult residents in mineral coal region-a cross-sectional study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:16806-16814. [PMID: 28567685 DOI: 10.1007/s11356-017-9312-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 05/18/2017] [Indexed: 06/07/2023]
Abstract
The present study assessed the DNA damage in environmentally exposed volunteers living in seven municipalities in an industrial coal region, through the use of the comet assay with blood cells and the micronucleus test with buccal cells. Blood and buccal smears were collected from 320 male volunteers living in seven cities inserted in a coal region. They were ages of 18 and 50 years and also completed a questionnaire intended to identify factors associated with DNA damage through a Poisson regression analysis. The comet assay detected significant differences in DNA damage in volunteers from different municipalities, and neighboring cities (Pedras Altas, Aceguá, and Hulha Negra) had a higher level of DNA damage in relation to control city. Some of the risk factors associated with identified DNA lesions included residence time and life habits. On the other hand, the micronucleus test did not identify differences between the cities studied, but the regression analysis identified risk factors such as age and life habits (consumption of mate tea and low carbohydrates diet). We conclude that there are differences in the DNA damage of volunteers from different cities of the carboniferous region, but the presence of micronuclei in the oral mucosa does not differ between the same cities. Furthermore, we alert that some related factors may increase the risk of genotoxicity, such as residence location and time, and living and food habits. Finally, we suggest the need for continuous biomonitoring of the population, as well as for investing in health promotion in these vulnerable populations.
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Affiliation(s)
- Edlaine Acosta Da Silva Pinto
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, Rio Grande, RS, 96203-900, Brazil
| | - Edariane Menestrino Garcia
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, Rio Grande, RS, 96203-900, Brazil
| | - Krissia Aparecida de Almeida
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
| | - Caroline Feijó Lopes Fernandes
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, Rio Grande, RS, 96203-900, Brazil
| | - Ronan Adler Tavella
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, Rio Grande, RS, 96203-900, Brazil
| | - Maria Cristina Flores Soares
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, Rio Grande, RS, 96203-900, Brazil
| | - Paulo Roberto Martins Baisch
- Laboratório de Oceanografia Geológica, Instituto de Oceanografia, Universidade Federal do Rio Grande do Sul - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96201-900, Brazil
| | - Ana Luíza Muccillo-Baisch
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
- Programa de Pós Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, Rio Grande, RS, 96203-900, Brazil
| | - Flavio Manoel Rodrigues da Silva Júnior
- Laboratório de Ensaios Farmacológicos e Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil.
- Programa de Pós Graduação em Ciências da Saúde, Universidade Federal do Rio Grande (FURG), Rua Visconde de Paranaguá 102 Centro, Rio Grande, RS, 96203-900, Brazil.
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26
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Porta CS, Dos Santos DL, Bernardes HV, Bellagamba BC, Duarte A, Dias JF, da Silva FR, Lehmann M, da Silva J, Dihl RR. Cytotoxic, genotoxic and mutagenic evaluation of surface waters from a coal exploration region. CHEMOSPHERE 2017; 172:440-448. [PMID: 28092765 DOI: 10.1016/j.chemosphere.2017.01.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/22/2016] [Accepted: 01/04/2017] [Indexed: 06/06/2023]
Abstract
Coal mining generates a considerable amount of waste, which is disposed of in piles or dams near mining sites. As a result, leachates may reach rivers and streams, promoting the wide dispersion of contaminants in solution and as particulate matter. The present study evaluated the cytotoxic, genotoxic, and mutagenic action of surface waters collected around a thermoelectric power plant and the largest mining area in Brazil (Candiota). Four sites in Candiota stream were selected, and samples were collected in winter and summer. Water samples were analyzed using the comet and CBMN assays in V79 and HepG2 cells. Furthermore, genotoxicity of water samples was evaluated in vivo using the SMART in Drosophila melanogaster. In addition, polycyclic aromatic hydrocarbons and inorganic elements were quantified. The results indicate that water samples exhibited no genotoxic and mutagenic activities, whether in vitro or in vivo. On the other hand, surface water samples collected in sites near the power plant in both summer and winter inhibited cell proliferation and induced increased frequencies of V79 cell death, apoptosis, and necrosis. The cytotoxicity observed may be associated with the presence of higher concentration of inorganic elements, especially aluminum, silicon, sulfur, titanium and zinc at sites 1 and 2 in the stream, as well as with the complex mixture present in the coal, in both seasons. Therefore, the results obtained point to the toxicity potential of water samples with the influence of coal mining and combustion processes and the possible adverse effects on the health of exposed organisms.
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Affiliation(s)
- Cynthia Silva Porta
- Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Débora Lemes Dos Santos
- Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Hélio Vieira Bernardes
- Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Bruno Corrêa Bellagamba
- Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Anaí Duarte
- Ion Implantation Laboratory, Institute of Physics, UFRGS, Porto Alegre, RS, Brazil
| | - Johnny Ferraz Dias
- Ion Implantation Laboratory, Institute of Physics, UFRGS, Porto Alegre, RS, Brazil
| | | | - Mauricio Lehmann
- Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Juliana da Silva
- Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Rafael Rodrigues Dihl
- Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil.
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27
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Matzenbacher CA, Garcia ALH, Dos Santos MS, Nicolau CC, Premoli S, Corrêa DS, de Souza CT, Niekraszewicz L, Dias JF, Delgado TV, Kalkreuth W, Grivicich I, da Silva J. DNA damage induced by coal dust, fly and bottom ash from coal combustion evaluated using the micronucleus test and comet assay in vitro. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:781-788. [PMID: 27894755 DOI: 10.1016/j.jhazmat.2016.11.062] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/19/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
Coal mining and combustion generating huge amounts of bottom and fly ash are major causes of environmental pollution and health hazards due to the release of polycyclic aromatic hydrocarbons (PAH) and heavy metals. The Candiota coalfield in Rio Grande do Sul, is one of the largest open-cast coal mines in Brazil. The aim of this study was to evaluate genotoxic and mutagenic effects of coal, bottom ash and fly ash samples from Candiota with the comet assay (alkaline and modified version) and micronucleus test using the lung fibroblast cell line (V79). Qualitative and quantitative analysis of PAH and inorganic elements was carried out by High Performance Liquid Chromatography (HPLC) and by Particle-Induced X-ray Emission (PIXE) techniques respectively. The samples demonstrated genotoxic and mutagenic effects. The comet assay modified using DNA-glicosilase formamidopirimidina (FPG) endonuclease showed damage related to oxidative stress mechanisms. The amount of PAHs was higher in fly ash followed by pulverized coal. The amount of inorganic elements was highest in fly ash, followed by bottom ash. It is concluded that the samples induce DNA damage by mechanisms that include oxidative stress, due to their complex composition, and that protective measures have to be taken regarding occupational and environmental hazards.
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Affiliation(s)
- Cristina Araujo Matzenbacher
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Ana Letícia Hilario Garcia
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Marcela Silva Dos Santos
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Caroline Cardoso Nicolau
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Suziane Premoli
- Research Center Product and Development (CEPPED), Postgraduate Program in Genetics and Applied Toxicology (PPGGTA), Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Dione Silva Corrêa
- Research Center Product and Development (CEPPED), Postgraduate Program in Genetics and Applied Toxicology (PPGGTA), Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Claudia Telles de Souza
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Liana Niekraszewicz
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Johnny Ferraz Dias
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Tânia Valéria Delgado
- Coal Analysis and Rocks Oil Generators Laboratory, Institute of Geosciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Wolfgang Kalkreuth
- Coal Analysis and Rocks Oil Generators Laboratory, Institute of Geosciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Ivana Grivicich
- Laboratory of Cancer Biology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil.
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28
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Marcon AE, Navoni JA, de Oliveira Galvão MF, Garcia ACFS, do Amaral VS, Petta RA, Campos TFDC, Panosso R, Quinelato AL, de Medeiros SRB. Mutagenic potential assessment associated with human exposure to natural radioactivity. CHEMOSPHERE 2017; 167:36-43. [PMID: 27705811 DOI: 10.1016/j.chemosphere.2016.09.136] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/20/2016] [Accepted: 09/26/2016] [Indexed: 06/06/2023]
Abstract
Lucrécia city, known to harbor a high cancer rate, is located in a semiarid region characterized by the presence of mineral reservoirs, facing a high exposure to metal and natural radioactivity. The present study aimed to assess the environmental scenario at a semiarid region located in Northeastern Brazil. Metal concentration, alpha and beta radiation, and cyanobacteria content in tap water along with indoor radon and gamma emitters (U, K and Th) concentrations were measured. In addition, mutagenic and nuclear instability effects were assessed using buccal micronucleus cytome assay. The study included five samplings corresponding to a period between 2007 and 2009. Drinking water from Lucrécia city presented levels of Mn, Ni and Cr along with cyanobacteria in concentrations one to four times higher than regulatory guidelines considered. Furthermore, high levels of all the tested radionuclides were found. A high percentage of the houses included in this study presented indoor radon concentrations over 100 Bq m-3. The mean annual effective dose from Lucrécia houses was six times higher than observed in a control region. The levels of exposure in most of the Lucrécia houses were classified as middle to high. A significant mutagenic effect, represented as an increase of micronuclei (MN) frequency and nuclear abnormalities as nuclear buds (NB), binucleated cells (BN), and pyknotic cells (PYC) were found. The results obtained highlight the role of high background radioactivity on the observed mutagenic effect and could help to explain the exacerbated cancer rate reported in this locality.
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Affiliation(s)
- Alexandre Endres Marcon
- Graduate Program in Health Sciences, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Julio Alejandro Navoni
- Graduate Program in Development and Environment, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | | | | | - Viviane Souza do Amaral
- Graduate Program in Development and Environment, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil; Graduate Program in Biochemistry, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil; Department of Cell Biology and Genetics, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Reinaldo Antônio Petta
- Geology Department, Center for Exact and Earth Sciences, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | | | - Renata Panosso
- Department of Microbiology and Parasitology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | | | - Sílvia Regina Batistuzzo de Medeiros
- Graduate Program in Health Sciences, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal, RN, Brazil; Graduate Program in Development and Environment, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil; Graduate Program in Biochemistry, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil; Department of Cell Biology and Genetics, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil.
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29
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de Oliveira Galvão MF, de Queiroz JDF, Duarte EDSF, Hoelzemann JJ, de André PA, Saldiva PHN, Menezes Filho JA, Batistuzzo de Medeiros SR. Characterization of the particulate matter and relationship between buccal micronucleus and urinary 1-hydroxypyrene levels among cashew nut roasting workers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:659-671. [PMID: 27839996 DOI: 10.1016/j.envpol.2016.10.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 09/27/2016] [Accepted: 10/08/2016] [Indexed: 06/06/2023]
Abstract
The present study is the first assessment of occupational risk associated with artisanal cashew nut roasting using exposure and effect biomarkers, as well as a characterization and dispersion analysis of the released particulate matter (PM). A real-time particle monitor was used to quantify PM1.0, PM2.5 and PM10. Furthermore, the PM was sampled using a Handi-vol sampler, and the physicochemical characteristics were determined by SEM-EDS analysis. Trajectories, dispersion and deposition of the emitted material were calculated using the NOAA-HYSPLIT model. Urinary 1-hydroxypyrene (1-OHP) levels were analyzed by HPLC. DNA damage, chromosomal instability and cell death were measured by a buccal micronucleus cytome assay (BMCyt). The PM concentrations for all measurements in the exposed area were higher than in the non-exposed area. SEM-EDS analyses exhibited a wide variety of particles, and K, Cl, S and Ca biomass burning tracers were the major inorganic compounds. In addition, atmospheric modeling analysis suggested that these particles can reach regions farther away than 40 kilometers. Occupational polycyclic aromatic hydrocarbon exposure was confirmed by increases in 1-OHP levels in cashew nut workers. Frequencies of BMCyt biomarkers of genotoxicity (micronuclei and nuclear bud) and cytotoxicity (pyknosis, karyolysis, karyorrhexis and condensed chromatin) were higher in the exposed group compared with the controls. The influence of factors, such as age, on the micronuclei frequencies was demonstrated, and a correlation between 1-OHP and micronuclei was observed. To the best of our knowledge, no other study has demonstrated a correlation between these types of biomarkers. The use of exposure (1-OHP) and effect (BMCyt) biomarkers were therefore efficient in assessing the occupational risk associated with artisanal cashew nut roasting, and the high rates of PM2.5 are considered to be a potential contributor to this effect.
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Affiliation(s)
| | | | | | - Judith Johanna Hoelzemann
- Departamento de Ciências Atmosféricas e Climáticas, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.
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Annangi B, Bonassi S, Marcos R, Hernández A. Biomonitoring of humans exposed to arsenic, chromium, nickel, vanadium, and complex mixtures of metals by using the micronucleus test in lymphocytes. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:140-161. [DOI: 10.1016/j.mrrev.2016.03.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 02/15/2016] [Accepted: 03/01/2016] [Indexed: 12/13/2022]
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da Silva J. DNA damage induced by occupational and environmental exposure to miscellaneous chemicals. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:170-182. [DOI: 10.1016/j.mrrev.2016.02.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 12/22/2015] [Accepted: 02/09/2016] [Indexed: 12/25/2022]
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Sinitsky MY, Minina VI, Gafarov NI, Asanov MA, Larionov AV, Ponasenko AV, Volobaev VP, Druzhinin VG. Assessment of DNA damage in underground coal miners using the cytokinesis-block micronucleus assay in peripheral blood lymphocytes. Mutagenesis 2016; 31:669-675. [DOI: 10.1093/mutage/gew038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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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] [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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Menezes APS, da Silva J, Fisher C, da Silva FR, Reyes JM, Picada JN, Ferraz AG, Corrêa DS, Premoli SM, Dias JF, de Souza CT, Ferraz ADBF. Chemical and toxicological effects of medicinal Baccharis trimera extract from coal burning area. CHEMOSPHERE 2016; 146:396-404. [PMID: 26741544 DOI: 10.1016/j.chemosphere.2015.12.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/01/2015] [Accepted: 12/08/2015] [Indexed: 06/05/2023]
Abstract
The entire process of power generation, extraction, processing and use of coal strongly impact water resources, soil, air quality and biota leads to changes in the fauna and flora. Pollutants generated by coal burning have been contaminating plants that grow in area impacted by airborne pollution with high metal contents. Baccharis trimera is popularly consumed as tea, and is widely developed in Candiota (Brazil), one of the most important coal burning regions of the Brazil. This study aims to investigate the phytochemical profile, in vivo genotoxic and mutagenic potential of extracts of B. trimera collected from an exposed region to pollutants generated by coal burning (Candiota City) and other unexposed region (Bagé City), using the Comet assay and micronucleus test in mice and the Salmonella/microsome short-term assay. The HPLC analyses indicated higher levels of flavonoids and phenolic acids for B. trimera aqueous extract from Bagé and absence of polycyclic aromatic hydrocarbons for both extracts. The presence of toxic elements such as cobalt, nickel and manganese was statistically superior in the extract from Candiota. For the Comet assay and micronucleus test, the mice were treated with Candiota and Bagé B. trimera aqueous extracts (500-2000 mg/kg). Significant genotoxicity was observed at higher doses treated with B. trimera aqueous extract from Candiota in liver and peripheral blood cells. Micronuclei were not observed but the results of the Salmonella/microsome short-term assay showed a significant increase in TA98 revertants for B. trimera aqueous extract from Candiota. The extract of B. trimera from Candiota bioacumulated higher levels of trace elements which were associated with the genotoxic effects detected in liver and peripheral blood cells.
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Affiliation(s)
- Ana Paula S Menezes
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil; Centro de Ciências da Saúde, Universidade da Região da Campanha (URCAMP), Bagé, Rio Grande do Sul, Brazil
| | - Juliana da Silva
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Genética e Toxicologia Aplicada (PPGGTA.MP), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil.
| | - Camila Fisher
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil
| | - Fernanda R da Silva
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil
| | - Juliana M Reyes
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil
| | - Jaqueline N Picada
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Genética e Toxicologia Aplicada (PPGGTA.MP), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil
| | - Alice G Ferraz
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil
| | - Dione S Corrêa
- Programa de Pós-Graduação em Genética e Toxicologia Aplicada (PPGGTA.MP), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil
| | - Suziane M Premoli
- Programa de Pós-Graduação em Genética e Toxicologia Aplicada (PPGGTA.MP), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil
| | - Johnny F Dias
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Claudia T de Souza
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Alexandre de B F Ferraz
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil; Programa de Pós-Graduação em Genética e Toxicologia Aplicada (PPGGTA.MP), Lutheran University of Brazil (ULBRA), Canoas, Rio Grande do Sul, Brazil.
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Coronas MV, Rocha JAV, Salvadori DMF, Vargas VMF. Evaluation of area contaminated by wood treatment activities: Genetic markers in the environment and in the child population. CHEMOSPHERE 2016; 144:1207-1215. [PMID: 26465966 DOI: 10.1016/j.chemosphere.2015.09.084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/12/2015] [Accepted: 09/22/2015] [Indexed: 06/05/2023]
Abstract
Wood preservation activities and related compounds are a problem since these areas have major environmental contamination liabilities which compromise the health of the surrounding population and the integrity of ecological processes. The present study evaluated an area influenced by soil contamination arising from the activities of a deactivated wood treatment plant. The presence and effect of mutagenic compounds in environmental samples were used as markers of exposure together with the evaluation biomarkers of genetic damage in children. Organic extracts from samples of public source water and from fine atmospheric particulate matter (PM2.5) were evaluated for mutagenic potential using the Salmonella/microsome assay. Children living in the area surrounding the plant were analyzed for genetic damage assessed by the comet assay in lymphocytes and micronucleus test (MN) in lymphocytes and oral mucosa and compared to a group living in an area outside the preferential quadrant of atmospheric dispersion and in opposition to the drainage at the site. The mutagenic effect and PAHs concentrations found were similar to studies that evaluated intensely occupied urban areas and those under industrial influence. The MN frequencies in lymphocytes and binucleated cells in the oral mucosa were significantly higher in the risk group. No significant differences were observed in the other genetic damage biomarkers evaluated. The presence of pollutants with a mutagenic and carcinogenic effect on the PM2.5 and the increased in some biomarkers indicate that the population is potentially exposed to substances capable of causing adverse health effects and atmospheric airborne is a possible exposure route.
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Affiliation(s)
- Mariana Vieira Coronas
- Programa de Pós-graduação em Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, 91501-970, Porto Alegre, RS, Brazil; Programa de Pesquisas Ambientais, Fundação Estadual de Proteção Ambiental Henrique Luís Roessler (FEPAM), Rua Doutor Salvador França, 1707, 90690-000, Porto Alegre, RS, Brazil; INAGEMP - Instituto Nacional de Genética Médica Populacional, Rio de Janeiro, Brazil.
| | - Jocelita Aparecida Vaz Rocha
- Programa de Pesquisas Ambientais, Fundação Estadual de Proteção Ambiental Henrique Luís Roessler (FEPAM), Rua Doutor Salvador França, 1707, 90690-000, Porto Alegre, RS, Brazil
| | - Daisy Maria Favero Salvadori
- Departamento de Patologia, Faculdade de Medicina de Botucatu, UNESP-Universidade Estadual Paulista, Botucatu, SP, Brazil
| | - Vera Maria Ferrão Vargas
- Programa de Pós-graduação em Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, 91501-970, Porto Alegre, RS, Brazil; Programa de Pesquisas Ambientais, Fundação Estadual de Proteção Ambiental Henrique Luís Roessler (FEPAM), Rua Doutor Salvador França, 1707, 90690-000, Porto Alegre, RS, Brazil; INAGEMP - Instituto Nacional de Genética Médica Populacional, Rio de Janeiro, Brazil.
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Volobaev VP, Sinitsky MY, Larionov AV, Druzhinin VG, Gafarov NI, Minina VI, Kulemin JE. Modifying influence of occupational inflammatory diseases on the level of chromosome aberrations in coal miners. Mutagenesis 2015; 31:225-9. [DOI: 10.1093/mutage/gev080] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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de Souza MR, da Silva FR, de Souza CT, Niekraszewicz L, Dias JF, Premoli S, Corrêa DS, Soares MDC, Marroni NP, Morgam-Martins MI, da Silva J. Evaluation of the genotoxic potential of soil contaminated with mineral coal tailings on snail Helix aspersa. CHEMOSPHERE 2015; 139:512-517. [PMID: 26295689 DOI: 10.1016/j.chemosphere.2015.07.071] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 07/17/2015] [Accepted: 07/26/2015] [Indexed: 06/04/2023]
Abstract
Coal remains an important source of energy, although the fuel is a greater environmental pollutant. Coal is a mixture of several chemicals, especially inorganic elements and polycyclic aromatic hydrocarbons (PAH). Many of these compounds have mutagenic and carcinogenic effects on organisms exposed to this mineral. In the town of Charqueadas (Brazil), the tailings from mining were used for landfill in the lower areas of the town, and the consequence is the formation of large deposits of this material. The purpose of this study was to evaluate the genotoxic potential of soil samples contaminated by coal waste in different sites at Charqueadas, using the land snail Helix aspersa as a biomonitor organism. Thirty terrestrial snails were exposed to different treatments: 20 were exposed to the soil from two different sites in Charqueadas (site 1 and 2; 10 in each group) and 10 non-exposed (control group). Hemolymph cells were collected after 24h, 5days and 7days of exposure and comet assay, micronucleus test, oxidative stress tests were performed. Furthermore, this study quantified the inorganic elements present in soil samples by the PIXE technique and polycyclic aromatic hydrocarbons (PAH) by HPLC. This evaluation shows that, in general, soils from sites in Charqueadas, demonstrated a genotoxic effect associated with increased oxidative stress, inorganic and PAH content. These results demonstrate that the coal pyrite tailings from Charqueadas are potentially genotoxic and that H. aspersa is confirmed to be a sensitive instrument for risk assessment of environmental pollution.
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Affiliation(s)
- Melissa Rosa de Souza
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, Prédio 22, Sala 22 (4(o) andar), 92425-900 Canoas, RS, Brazil
| | | | - Claudia Telles de Souza
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Liana Niekraszewicz
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Johnny Ferraz Dias
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Suziane Premoli
- Postgraduate Program in Genetics and Applied Toxicology (PPGGTA) - Chemistry Course, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Dione Silva Corrêa
- Postgraduate Program in Genetics and Applied Toxicology (PPGGTA) - Chemistry Course, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Mariana do Couto Soares
- Laboratório de Estresse Oxidativo e Antioxidantes, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Norma Possa Marroni
- Laboratório de Estresse Oxidativo e Antioxidantes, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Maria Isabel Morgam-Martins
- Laboratório de Estresse Oxidativo e Antioxidantes, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, Prédio 22, Sala 22 (4(o) andar), 92425-900 Canoas, RS, Brazil.
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Shen F, Liu H, Yuan J, Han B, Cui K, Ding Y, Fan X, Cao H, Yao S, Suo X, Sun Z, Yun X, Hua Z, Chen J. Cost-Effectiveness of Coal Workers' Pneumoconiosis Prevention Based on Its Predicted Incidence within the Datong Coal Mine Group in China. PLoS One 2015; 10:e0130958. [PMID: 26098706 PMCID: PMC4476760 DOI: 10.1371/journal.pone.0130958] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 05/27/2015] [Indexed: 11/29/2022] Open
Abstract
We aimed to estimate the economic losses currently caused by coal workers’ pneumoconiosis (CWP) and, on the basis of these measurements, confirm the economic benefit of preventive measures. Our cohort study included 1,847 patients with CWP and 43,742 coal workers without CWP who were registered in the employment records of the Datong Coal Mine Group. We calculated the cumulative incidence rate of pneumoconiosis using the life-table method. We used the dose-response relationship between cumulative incidence density and cumulative dust exposure to predict the future trend in the incidence of CWP. We calculate the economic loss caused by CWP and economic effectiveness of CWP prevention by a step-wise model. The cumulative incidence rates of CWP in the tunneling, mining, combining, and helping cohorts were 58.7%, 28.1%, 21.7%, and 4.0%, respectively. The cumulative incidence rates increased gradually with increasing cumulative dust exposure (CDE). We predicted 4,300 new CWP cases, assuming the dust concentrations remained at the levels of 2011. If advanced dustproof equipment was adopted, 537 fewer people would be diagnosed with CWP. In all, losses of 1.207 billion Renminbi (RMB, official currency of China) would be prevented and 4,698.8 healthy life years would be gained. Investments in advanced dustproof equipment would be total 843 million RMB, according to our study; the ratio of investment to restored economic losses was 1:1.43. Controlling workplace dust concentrations is critical to reduce the onset of pneumoconiosis and to achieve economic benefits.
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Affiliation(s)
- Fuhai Shen
- School of Public Health, China Medical University, Shenyang, Liaoning, 110013, P.R. China
- School of Public Health, Hebei United University, Tangshan, Hebei, 063000, P.R. China
| | - Hongbo Liu
- School of Public Health, China Medical University, Shenyang, Liaoning, 110013, P.R. China
| | - Juxiang Yuan
- School of Public Health, Hebei United University, Tangshan, Hebei, 063000, P.R. China
| | - Bing Han
- School of Public Health, China Medical University, Shenyang, Liaoning, 110013, P.R. China
| | - Kai Cui
- School of Public Health, China Medical University, Shenyang, Liaoning, 110013, P.R. China
| | - Yu Ding
- Occupational Disease Prevention and Treatment Hospital of Datong Coal Mine Group, Datong, Shanxi, 037003, P.R. China
| | - Xueyun Fan
- School of Public Health, Hebei United University, Tangshan, Hebei, 063000, P.R. China
| | - Hong Cao
- Occupational Disease Prevention and Treatment Hospital of Datong Coal Mine Group, Datong, Shanxi, 037003, P.R. China
| | - Sanqiao Yao
- School of Public Health, Hebei United University, Tangshan, Hebei, 063000, P.R. China
| | - Xia Suo
- Occupational Disease Prevention and Treatment Hospital of Datong Coal Mine Group, Datong, Shanxi, 037003, P.R. China
| | - Zhiqian Sun
- School of Public Health, Hebei United University, Tangshan, Hebei, 063000, P.R. China
| | - Xiang Yun
- School of Public Health, Hebei United University, Tangshan, Hebei, 063000, P.R. China
| | - Zhengbing Hua
- School of Public Health, Hebei United University, Tangshan, Hebei, 063000, P.R. China
| | - Jie Chen
- School of Public Health, China Medical University, Shenyang, Liaoning, 110013, P.R. China
- * E-mail:
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Menezes APS, Da Silva J, Rossato RR, Santos MS, Decker N, Da Silva FR, Cruz C, Dihl RR, Lehmann M, Ferraz ABF. Genotoxic and biochemical changes in Baccharis trimera induced by coal contamination. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 114:9-16. [PMID: 25590379 DOI: 10.1016/j.ecoenv.2015.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/04/2015] [Accepted: 01/05/2015] [Indexed: 06/04/2023]
Abstract
The processing and combustion of coal in thermal power plants release anthropogenic chemicals into the environment. Baccharis trimera is a common plant used in folk medicine that grows readily in soils degraded by coal mining activities. This shrub bioaccumulates metals released into the environment, and thus its consumption may be harmful to health. The purpose of this study was to investigate the phytochemical profile, antioxidant capacity (DPPH), genotoxic (comet assay) and mutagenic potential (CBMN-cyt) in V79 cells of B. trimera aqueous extracts in the coal-mining region of Candiota (Bt-AEC), and in Bagé, a city that does not experience the effects of exposure to coal (Bt-AEB, a reference site). In the comet assay, only Bt-AEC was genotoxic at the highest doses (0.8mg/mL and 1.6mg/mL), compared to the control. For extracts from both areas, mutagenic effects were observed at higher concentrations compared to the control. The cell damage parameters were significantly high in both extracts; however, more striking values were observed for Bt-AEC, up to the dose of 0.8mg/mL. In chemical analysis, no variation was observed in the contents of flavonoids and phenolic compounds, neither the antioxidant activity, which may suggest that DNA damage observed in V79 cells was induced by the presence of coal contaminants absorbed by the plant.
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Affiliation(s)
- A P S Menezes
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil; Centro de Ciências da Saúde, Universidade da Região da Campanha (URCAMP), Bagé, Rio Grande do Sul, Brazil
| | - J Da Silva
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil.
| | - R R Rossato
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil; Centro de Ciências da Saúde, Universidade da Região da Campanha (URCAMP), Bagé, Rio Grande do Sul, Brazil
| | - M S Santos
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil
| | - N Decker
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil
| | - F R Da Silva
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil
| | - C Cruz
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil
| | - R R Dihl
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil
| | - M Lehmann
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil
| | - A B F Ferraz
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada a Saúde (PPGBioSaude), Universidade Luterana do Brasil, Canoas, Brazil.
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León-Mejía G, Quintana M, Debastiani R, Dias J, Espitia-Pérez L, Hartmann A, Henriques JAP, Da Silva J. Genetic damage in coal miners evaluated by buccal micronucleus cytome assay. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 107:133-139. [PMID: 24927390 DOI: 10.1016/j.ecoenv.2014.05.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 04/30/2014] [Accepted: 05/19/2014] [Indexed: 06/03/2023]
Abstract
During coal mining activities, large quantities of coal dust, ashes, polycyclic aromatic hydrocarbons and metals are released into the environment. This complex mixture presents one of the most important occupational hazards for health of workers. The aim of the present study was to evaluate the genetic damage together with the presence of inorganic elements, in an exposed workers population to coal mining residues of Guajira-Colombia. Thus, 100 exposed workers and 100 non-exposed control individuals were included in this study. To determine genetic damage we assessed the micronucleus (MN) frequencies and nuclear buds in buccal mucosa samples (BMCyt) assay, which were significantly higher in the exposed group than non-exposed control group. In addition, karyorrhectic and karyolytic cells were also significantly higher in the exposed group (cell death). No significant difference was observed between the exposed groups engaged in different mining activities. No correlation between age, alcohol consumption, time of service and MN assay data were found in this study. However, the content of inorganic elements in blood samples analyzed by a Particle-induced X-ray emission technique (PIXE) showed higher values of silicon (Si) and aluminum (Al) in the exposed group. In this study we discuss the possibility of DNA damage observed in the mine workers cells be a consequence of oxidative damage.
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Affiliation(s)
- Grethel León-Mejía
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil.
| | - Milton Quintana
- Unidad de Investigación, Desarrollo e Innovación en Genética y Biología Molecular, Universidad Simón Bolívar, Barranquilla, Colombia
| | - Rafaela Debastiani
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil
| | - Johnny Dias
- Laboratório de Implantação Iônica, Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil
| | - Lyda Espitia-Pérez
- Laboratorio de Investigación Biomédica y Biología Molecular, Universidad del Sinú, Montería, Colombia
| | | | - João Antônio Pêgas Henriques
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil; Instituto de Biotecnologia, Universidade de Caxias do Sul (UCS), Caxias do Sul, RS, Brasil.
| | - Juliana Da Silva
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil (ULBRA), Canoas-RS, Brasil
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Zocche JJ, da Silva LA, Damiani AP, Mendonça RÁ, Peres PB, dos Santos CEI, Debastiani R, Dias JF, de Andrade VM, Pinho RA. Heavy-metal content and oxidative damage in Hypsiboas faber: the impact of coal-mining pollutants on amphibians. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2014; 66:69-77. [PMID: 23974155 DOI: 10.1007/s00244-013-9949-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 08/05/2013] [Indexed: 06/02/2023]
Abstract
It has been identified worldwide that amphibians are experiencing massive population declines. This decrease could be further enhanced by the exposure of amphibians to pollutants, which would enhance reactive oxygen species production and cause subsequent alterations in oxidant defense levels. The present study was aimed at understanding the impact of mineral coal on amphibians. For this purpose, chemical elemental contents and oxidative stress indexes in Hypsiboas faber from coal-mining areas and in an unpolluted area in the Catarinense Coal Basin, Brazil, were assessed. The highest contents of sulfur, chlorine, iron, zinc, and bromine were registered in specimens from the coal-mining area, whereas the highest contents of potassium calcium, and silicon were registered in specimens from the control area. It was found that there was a significant increase (p < 0.05) in the activity of super oxide dismutase (SOD) and glutathione peroxidase (GPx) in the animals from the coal-mining area, whereas the level of catalase showed no differences between the animal groups. The levels of TBARS showed no differences between the tested groups. However, carbonylation decreased significantly (p < 0.05) in animals from the coal-mining area, and there was a significant increase (p < 0.05) in the formation of total thiols in animals from the coal-mining area. In conclusion, the antioxidant system of H. faber is sensitive to pollutants present in coal-mining wastes, and its SOD and GPx activity may be a potential biomarker for monitoring the level of contaminants in the environment.
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Affiliation(s)
- Jairo José Zocche
- Programa de Pós-Graduação em Ciências Ambientais, Laboratório de Ecologia de Paisagem e de Vertebrados, Universidade do Extremo Sul Catarinense (UNESC), Av. Universitária, 1105, Bairro Universitário, Criciúma, SC, CEP: 88806-000, Brazil,
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Rohr P, Kvitko K, da Silva FR, Menezes APS, Porto C, Sarmento M, Decker N, Reyes JM, Allgayer MDC, Furtado TC, Salvador M, Branco C, da Silva J. Genetic and oxidative damage of peripheral blood lymphocytes in workers with occupational exposure to coal. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2013; 758:23-8. [DOI: 10.1016/j.mrgentox.2013.08.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 08/21/2013] [Accepted: 08/25/2013] [Indexed: 12/22/2022]
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Zocche JJ, Damiani AP, Hainzenreder G, Mendonça RÁ, Peres PB, Santos CEID, Debastiani R, Dias JF, Andrade VMD. Assessment of heavy metal content and DNA damage in Hypsiboas faber (anuran amphibian) in coal open-casting mine. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2013; 36:194-201. [PMID: 23619523 DOI: 10.1016/j.etap.2013.03.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 03/21/2013] [Accepted: 03/22/2013] [Indexed: 06/02/2023]
Abstract
The aims of the study were to determine the heavy metal content in the tissues of Hypsiboas faber from a coal mining area and to compare the DNA damage in the blood cells of these animals with that of animals living in an unpolluted area. The heavy metal content was detected according to the technique of Particle-Induced X-ray Emission (PIXE) and the DNA damage was assessed by the Comet assay. Our results reveal that the specimens of H. faber collected from the coal mining area exhibited elements of order Fe>Cu>Al>Zn>Rb>Mn>Br, independently of the organ. The values of Comet assay parameters (DNA damage index and DNA damage frequency) were significantly higher in specimens collected from the coal mining area than in the reference animals. Our study concludes that the coal mining residues are genotoxic to amphibians and may have adverse effects on soil, water, vegetation and wild animals.
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Affiliation(s)
- Jairo José Zocche
- Laboratório de Ecologia de Paisagem e de Vertebrados, Programa de Pós-Graduação em Ciências Ambientais, Unidade Acadêmica de Humanidades, Ciências e Educação, Universidade do Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil.
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Cytogenetic abnormality in exfoliated cells of buccal mucosa in head and neck cancer patients in the Tunisian population: impact of different exposure sources. BIOMED RESEARCH INTERNATIONAL 2013; 2013:905252. [PMID: 23957010 PMCID: PMC3727183 DOI: 10.1155/2013/905252] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 06/11/2013] [Indexed: 12/12/2022]
Abstract
Chromosome/DNA instability could be one of the primary causes of malignant cell transformation. The objective of the present study was to evaluate the spontaneous genetic damages in exfoliated cells of buccal mucosa of head and neck cancer (HNC) by counting micronucleus (MN) and binucleated (BN) cells frequencies. MN and BN frequencies were significantly increased in HNC patients compared with controls (5.53 ± 3.09/1000 cells, 5.63 ± 2.99/1000 cells versus 2.36 ± 2.11/1000 cells, 3.09 ± 1.82/1000 cells, P < 0.001). Regarding the gender and the age, the frequencies of the MN and BN were significantly higher than those of controls (P < 0.01). The evaluation of the MN and BN frequencies revealed a significant increase (P < 0.001) in the cases in relation to the control group after controlling the risk factors (tobacco smoking and chewing and occupational exposure) of HNC. Moreover, MN and BN frequencies were significantly increased in smokers and chewers compared with nonsmokers and nonchewers among patients (P < 0.05). MN frequency was significantly (P = 0.014) different between patients occupationally exposed (6.99 ± 3.40/1000 cells) and nonexposed (4.70 ± 2.48/1000 cells) among HNC group. The logistic regression model illustrated that HNC was significantly associated with frequencies of MN (OR = 8.63, P < 0.0001) and BN (OR = 5.62, P = 0.001). Our results suggest that increased chromosome/DNA instabilities may be associated with HNC.
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Benedetti D, Nunes E, Sarmento M, Porto C, Dos Santos CEI, Dias JF, da Silva J. Genetic damage in soybean workers exposed to pesticides: evaluation with the comet and buccal micronucleus cytome assays. Mutat Res 2013; 752:28-33. [PMID: 23347873 DOI: 10.1016/j.mrgentox.2013.01.001] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 12/28/2012] [Accepted: 01/03/2013] [Indexed: 11/21/2022]
Abstract
Soybean cultivation is widespread in the State of Rio Grande do Sul (RS, Brazil), especially in the city of Espumoso. Soybean workers in this region are increasingly exposed to a wide combination of chemical agents present in formulations of fungicides, herbicides, and insecticides. In the present study, the comet assay in peripheral leukocytes and the buccal micronucleus (MN) cytome assay (BMCyt) in exfoliated buccal cells were used to assess the effects of exposures to pesticides in soybean farm workers from Espumoso. A total of 127 individuals, 81 exposed and 46 non-exposed controls, were evaluated. Comet assay and BMCyt (micronuclei and nuclear buds) data revealed DNA damage in soybean workers. Cell death was also observed (condensed chromatin, karyorhectic, and karyolitic cells). Inhibition of non-specific choline esterase (BchE) was not observed in the workers. The trace element contents of buccal samples were analyzed by Particle-Induced X-ray Emission (PIXE). Higher concentrations of Mg, Al, Si, P, S, and Cl were observed in cells from workers. No associations with use of personal protective equipment, gender, or mode of application of pesticides were observed. Our findings indicate the advisability of monitoring genetic toxicity in soybean farm workers exposed to pesticides.
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Affiliation(s)
- Danieli Benedetti
- Laboratory of Genetic Toxicology, Postgraduate Program in Cell and Molecular Biology Applied to Health (PPGBioSaude), Lutheran University of Brazil (ULBRA), Canoas-RS, Brazil
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