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Souza MRD, Garcia ALH, Dalberto D, Picinini J, Touguinha LBA, Salvador M, da Silva J. Multiple factors influence telomere length and DNA damage in individuals environmentally exposed to a coal-burning power plant. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2024; 898:503793. [PMID: 39147445 DOI: 10.1016/j.mrgentox.2024.503793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 06/27/2024] [Accepted: 07/04/2024] [Indexed: 08/17/2024]
Abstract
Coal is a mixture of several chemicals, many of which have mutagenic and carcinogenic effects and are a key contributor to the global burden of mortality and disease. Previous studies suggest that coal is related to telomeric shortening in individuals occupationally exposed, however little is known about the effects of mining and burning coal on the telomeres of individuals living nearby. Therefore, the primary objective of this investigation was to assess the impact of proximity to coal power plants and coal mines on the genomic instability of individuals environmentally exposed, while also exploring potential associations with individual characteristics, oxidative stress, inflammatory responses, and the presence of inorganic elements. This study involved 80 men participants from three cities around a thermoelectric power plant and one city unexposed to coal and byproducts. DNA was extracted from peripheral blood samples obtained from each participant, and the telomeres length (TL) was assessed using quantitative real-time polymerase chain reaction (qPCR) methodology. No significant difference was observed between exposed individuals (6227 ± 2884 bp) when compared to the unexposed group (5638 ± 2452 bp). Nevertheless, TL decrease was associated with age and risk for cardiovascular disease; and longer TL was found to be linked with increased concentrations of silicon and phosphorus in blood samples. No correlations were observed between TL with comet assay (visual score), micronucleus test, oxidative stress, and inflammatory results. Additional research is required to ascertain the potential correlation between these changes and the onset of diseases and premature mortality.
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Affiliation(s)
- Melissa Rosa de Souza
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA) and LaSalle University (UniLaSalle), Avenida Farroupilha, 8001 Bairro São José, Canoas, RS CEP 92425-900, Brazil.
| | - Ana Letícia Hilário Garcia
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA) and LaSalle University (UniLaSalle), Avenida Farroupilha, 8001 Bairro São José, Canoas, RS CEP 92425-900, Brazil
| | - Daiana Dalberto
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA) and LaSalle University (UniLaSalle), Avenida Farroupilha, 8001 Bairro São José, Canoas, RS CEP 92425-900, Brazil
| | - Juliana Picinini
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA) and LaSalle University (UniLaSalle), Avenida Farroupilha, 8001 Bairro São José, Canoas, RS CEP 92425-900, Brazil
| | | | - Mirian Salvador
- Laboratory of Oxidative Stress and Antioxidants, Institute of Biotechnology, University of Caxias do Sul (UCS), Caxias do Sul, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA) and LaSalle University (UniLaSalle), Avenida Farroupilha, 8001 Bairro São José, Canoas, RS CEP 92425-900, Brazil.
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da Silva RMG, de Oliveira Moraes VM, Granero FO, Malaguti Figueiredo CC, Dos Santos VHM, Machado LP, Pereira Silva L. Cytogenotoxicity evaluation of heavy metals detected in extracts and infusion of Baccharis trimera, potential bioaccumulator plant. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024; 87:108-119. [PMID: 37942923 DOI: 10.1080/15287394.2023.2279120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Heavy metals (HMs) are natural components of the Earth's crust that might originate from natural and anthropogenic sources. In excess quantities, the presence of these metals is harmful for both environment and human health. Taking this into account, various investigators examined bioaccumulator species in order to reduce environmental toxicity, among these Baccharis trimera. Therefore, the present study aimed to determine the capacity of B. trimera to bioaccumulate HMs and assess consequent cytogenotoxicity following exposure. B. trimera vegetative parts were collected from two groups (1) control, in which plants were cultivated in soil exposed to distilled water, and (2) exposed, in which plants were cultivated in soil exposed to HMs including manganese (Mn), iron (Fe), lead (Pb), copper (Cu), cobalt (Co), zinc (Zn), and chromium (Cr). HMs were quantified in cultivation soil and extracts (aqueous and ethanolic) as well as infusion of B. trimera vegetative parts. Root lengths and cytogenotoxic effects were determined using Allium cepa test. Results demonstrated that all HMs studied were absorbed and bioaccumulated by B. trimera. Root lengths were decreased when exposed to ethanolic extract of B. trimera cultivated in soil exposed to HMs solution, which was the extract that exhibited the highest cytogenotoxicity values. Thus, data demonstrated that B. trimera might serve as a bioaccumulator for the reduction of environmental toxicity associated with the presence of certain HMs.
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Affiliation(s)
- Regildo Márcio Gonçalves da Silva
- School of Sciences, Humanities and Languages, Department of Biotechnology, Laboratory of Phytotherapic and Natural Products, São Paulo State University (UNESP), Assis, São Paulo, Brazil
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Vanessa Marques de Oliveira Moraes
- School of Sciences, Humanities and Languages, Department of Biotechnology, Laboratory of Phytotherapic and Natural Products, São Paulo State University (UNESP), Assis, São Paulo, Brazil
| | | | | | | | - Levi Pompermayer Machado
- Faculty of Agricultural Sciences of Vale do Ribeira, Department of Fisheries Engineering, São Paulo State University (UNESP), Registro, São Paulo, Brazil
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Boaretto FBM, da Silva J, Scotti A, Torres JS, Garcia ALH, Rodrigues GZP, Gehlen G, Rodrigues VB, Charão MF, Soares GM, Dias JF, Picada JN. Comparative toxicity of coal and coal ash: Assessing biological impacts and potential mechanisms through in vitro and in vivo testing. J Trace Elem Med Biol 2024; 81:127343. [PMID: 38035449 DOI: 10.1016/j.jtemb.2023.127343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 12/02/2023]
Abstract
BACKGROUND Coal and coal ash present inorganic elements associated with negative impacts on environment and human health. The objective of this study was to compare the toxicity of coal and coal ash from a power plant, assess their inorganic components, and investigate the biological impacts and potential mechanisms through in vitro and in vivo testing. METHODS Particle-Induced X-ray Emission method was used to quantify inorganic elements and the toxicity was evaluated in Caenorhabditis elegans and Daphnia magna in acute and chronic procedures. The genotoxic potential was assessed using alkaline and FPG-modified Comet assay in HepG2 cells and mutagenicity was evaluated using Salmonella/microsome assay in TA97a, TA100, and TA102 strains. RESULTS Inorganic elements such as aluminum (Al) and chromium (Cr) were detected at higher concentrations in coal ash compared to coal. These elements were found to be associated with increased toxicity of coal ash in both Caenorhabditis elegans and Daphnia magna. Coal and coal ash did not induce gene mutations, but showed genotoxic effects in HepG2 cells, which were increased using the FPG enzyme, indicating DNA oxidative damage. CONCLUSIONS The combined findings from bioassays using C. elegans and D. magna support the higher toxicity of coal ash, which can be attributed to its elevated levels of inorganic elements. The genotoxicity observed in HepG2 cells confirms these results. This study highlights the need for continuous monitoring in areas affected by environmental degradation caused by coal power plants. Additionally, the analysis reveals significantly higher concentrations of various inorganic elements in coal ash compared to coal, providing insight into the specific elemental composition contributing to its increased toxicity.
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Affiliation(s)
- Fernanda B M Boaretto
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, 92425-900 Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, 92425-900 Canoas, RS, Brazil.
| | - Amanda Scotti
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, 92425-900 Canoas, RS, Brazil
| | - Jayne S Torres
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, 92425-900 Canoas, RS, Brazil
| | - Ana L H Garcia
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, 92425-900 Canoas, RS, Brazil
| | - Gabriela Z P Rodrigues
- Laboratory of Ecotoxicology, Posgraduate Program in Environmental Quality, University Feevale, ERS-239, 2755, 93525-075 Novo Hamburgo, RS, Brazil
| | - Günther Gehlen
- Laboratory of Ecotoxicology, Posgraduate Program in Environmental Quality, University Feevale, ERS-239, 2755, 93525-075 Novo Hamburgo, RS, Brazil
| | - Vinícios B Rodrigues
- Laboratory of Bioanalyses, Posgraduate Program in Toxicology and Toxicological Analysis, University Feevale, ERS-239, 2755, 93525-075 Novo Hamburgo, RS, Brazil
| | - Mariele F Charão
- Laboratory of Bioanalyses, Posgraduate Program in Toxicology and Toxicological Analysis, University Feevale, ERS-239, 2755, 93525-075 Novo Hamburgo, RS, Brazil
| | - Guilherme M Soares
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Agronomia, Porto Alegre, RS, Brazil
| | - Johnny F Dias
- Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Agronomia, Porto Alegre, RS, Brazil
| | - Jaqueline N Picada
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, 92425-900 Canoas, RS, Brazil.
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Afonso TF, Demarco CF, Pieniz S, Quadro MS, de Oliveira Camargo FA, Andreazza R. Analysis of Baccharis dracunculifolia and Baccharis trimera for Phytoremediation of Heavy Metals in Copper Mining Tailings Area in Southern Brazil. Appl Biochem Biotechnol 2022; 194:694-708. [PMID: 34506005 DOI: 10.1007/s12010-021-03652-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 09/03/2021] [Indexed: 10/20/2022]
Abstract
This study aimed to investigate the phytoremediation potential promoted by Baccharis dracunculifolia DC. and Baccharis trimera (Less.) DC. in copper mining tailing area, in the Southern part of Brazil. The plants were selected considering their spontaneous growth in tailing area. The phytoremediation indexes including translocation factor (TF), bioconcentration factor (BCF), metal extraction ratio (MER), and plant effective number (PEN) were assessed. Both species showed higher concentrations of heavy metals in the roots than to the shoots. B. trimera has potential for phytoextraction of Zn, Cd, Cr, and Pb and phytostabilization of Ba and Ni, whereas B. dracunculifolia demonstrated potential for phytoextraction of Pb and phytostabilization of Cu, Zn, and Ba. B. trimera showed higher potential in phytoremediation of the metals such as Cu > Zn > Cr > Ni and Cd than the B. dracunculifolia plants. A smaller number B. trimera plants was required to remove 1 g of Cu, Zn, Cr, Pb, Ni, and Cd than B. dracunculifolia plants, and implies that B. trimera is more efficient for decontamination of the metals. Both species showed potential for phytoremediation of metals in the mining tailing area under study.
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Affiliation(s)
- Thays França Afonso
- Science and Engineering of Materials Postgraduate Program, Technological Development Center, UFPel, Pelotas, RS, Brazil
| | - Carolina Faccio Demarco
- Science and Engineering of Materials Postgraduate Program, Technological Development Center, UFPel, Pelotas, RS, Brazil
| | - Simone Pieniz
- Environmental Sciences Postgraduate Program, Engineering Center, UFPel, Pelotas, RS, Brazil
| | | | | | - Robson Andreazza
- Science and Engineering of Materials Postgraduate Program, Technological Development Center, UFPel, Pelotas, RS, Brazil.
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Souza MRD, Hilário Garcia AL, Dalberto D, Martins G, Picinini J, Souza GMSD, Chytry P, Dias JF, Bobermin LD, Quincozes-Santos A, da Silva J. Environmental exposure to mineral coal and by-products: Influence on human health and genomic instability. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117346. [PMID: 34020260 DOI: 10.1016/j.envpol.2021.117346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
Environmental exposure to pollution generated by mining and burning coal is inevitable for people living nearby. Therefore, the aim of this study was to evaluate the influence of coal dust on health conditions and genomic instability of individuals who live near coal mines and thermoelectric power plants, and to relate the results to inorganic elements and inflammatory responses. Thus, we evaluated 284 individuals from four cities in the south of Brazil around a region with coal mines and a thermoelectric power plant (one city was considered a negative control). The results of the Comet assay and Micronucleus (MN) test did not show a genotoxic or mutagenic effect related to environmental exposure to coal, but the inflammatory cytokine tumor necrosis factor-α (TNF-α) was increased in all cities around the power plant when compared to the control conditions. Higher levels of MN were associated with body mass index and cardiovascular risk, and higher levels of Damage Index (DI), TNF-α and interleukin1β (IL-1β) with number of cigarettes/day. Principal component analysis (PCA) was used to integrate DNA damage and inflammatory results with inorganic elements. This study also demonstrated the relationship between zinc and MN, copper, and interleukin10 (IL-10), and among silicon and sulfur with DI and nucleoplasmic bridge. A relationship was also observed between the reduction of inorganic elements and both aging and quality of health. The use of different methodologies and the relationship between the results obtained in these studies, including different lifestyles, can increase the understanding of the interaction between this mineral and the health status of residents of regions affected by coal pollution.
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Affiliation(s)
- Melissa Rosa de Souza
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Avenida Farroupilha, 8001 Bairro São José, CEP 92425-900, Canoas, RS, Brazil.
| | - Ana Letícia Hilário Garcia
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Avenida Farroupilha, 8001 Bairro São José, CEP 92425-900, Canoas, RS, Brazil
| | - Daiana Dalberto
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Avenida Farroupilha, 8001 Bairro São José, CEP 92425-900, Canoas, RS, Brazil
| | - Gabriela Martins
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Avenida Farroupilha, 8001 Bairro São José, CEP 92425-900, Canoas, RS, Brazil
| | - Juliana Picinini
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Avenida Farroupilha, 8001 Bairro São José, CEP 92425-900, Canoas, RS, Brazil
| | | | - Paola Chytry
- 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
| | - Larissa Daniele Bobermin
- Departamento de Bioquímica, Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Ramiro Barcelos, 2600-Anexo, Bairro Santa Cecília, Porto Alegre, RS, 90035-003, Brazil
| | - André Quincozes-Santos
- Departamento de Bioquímica, Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Ramiro Barcelos, 2600-Anexo, Bairro Santa Cecília, Porto Alegre, RS, 90035-003, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Avenida Farroupilha, 8001 Bairro São José, CEP 92425-900, Canoas, RS, Brazil
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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: 11] [Impact Index Per Article: 1.8] [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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Nordin AP, da Silva J, de Souza CT, Niekraszewicz LAB, Dias JF, da Boit K, Oliveira MLS, Grivicich I, Garcia ALH, Oliveira LFS, da Silva FR. In vitro genotoxic effect of secondary minerals crystallized in rocks from coal mine drainage. JOURNAL OF HAZARDOUS MATERIALS 2018; 346:263-272. [PMID: 29288979 DOI: 10.1016/j.jhazmat.2017.12.026] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 12/08/2017] [Accepted: 12/09/2017] [Indexed: 06/07/2023]
Abstract
Coal processing generates a large volume of waste that can damage human health and the environment. Often these wastes produce acid drainage in which several minerals are crystallized (evaporites). This study aimed to identify secondary minerals, as well as the genotoxic potential of these materials. The samples were collected at two sites along the Rocinha River in Santa Catarina state (Brazil): (1) directly from the source of the acid drainage (evaporite 1), and (2) on the river bank (evaporite 2). The samples were characterized by X-ray diffraction and by particle-induced X-ray emission techniques. In vitro genotoxicity testing using Comet assay and Micronucleus test in V79 cells was used to evaluate evaporite samples. Our study also used System Biology tools to provide insight regarding the influence of this exposure on DNA damage in cells. The results showed that the samples induced DNA damage for both evaporites that can be explained by high concentrations of chromium, iron, nickel, copper and zinc in these materials. Thus, this study is very important due to the dearth of knowledge regarding the toxicity of evaporites in the environment. The genetic toxicity of this material can be induced by increased oxidative stress and DNA repair inhibition.
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Affiliation(s)
- Adriane Perachi Nordin
- Mestrado em Avaliação de Impactos Ambientais, La Salle University (UNILASALLE), Canoas, RS, Brazil; Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil.
| | - Claudia Telles de Souza
- Laboratory of Environmental Analytical Chemistry and Oleochemistry, Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Liana A B 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
| | - Kátia da Boit
- Universidad De La Costa, Calle #55-66, 080002 Barranquilla, Atlántico, Colombia
| | - Marcos L S Oliveira
- Universidad De La Costa, Calle #55-66, 080002 Barranquilla, Atlántico, Colombia
| | - Ivana Grivicich
- Laboratory of Cancer Biology, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
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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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9
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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: 6.8] [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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10
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Porto LCS, da Silva J, Sousa K, Ambrozio ML, de Almeida A, Dos Santos CEI, Dias JF, Allgayer MC, Dos Santos MS, Pereira P, Ferraz ABF, Picada JN. Evaluation of Toxicological Effects of an Aqueous Extract of Shells from the Pecan Nut Carya illinoinensis (Wangenh.) K. Koch and the Possible Association with Its Inorganic Constituents and Major Phenolic Compounds. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2016; 2016:4647830. [PMID: 27525021 PMCID: PMC4971311 DOI: 10.1155/2016/4647830] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/10/2016] [Accepted: 06/13/2016] [Indexed: 12/01/2022]
Abstract
Background. Industrial processing of the pecan nut Carya illinoinensis K. Koch generated a large amount of shells, which have been used to prepare nutritional supplements and medicinal products; however, the safe use of shells requires assessment. This study evaluated the toxic, genotoxic, and mutagenic effects of pecan shell aqueous extract (PSAE) and the possible contribution of phenolic compounds, ellagic and gallic acids, and inorganic elements present in PSAE to induce toxicity. Results. Levels of inorganic elements like K, P, Cl, and Rb quantified using the Particle-Induced X-Ray Emission method were higher in PSAE than in pecan shells, while Mg and Mn levels were higher in shells. Mice showed neurobehavioral toxicity when given high PSAE doses (200-2,000 mg kg(-1)). The LD50 was 1,166.3 mg kg(-1). However, PSAE (50-200 mg·kg(-1)) and the phenolic compounds (10-100 mg·kg(-1)) did not induce DNA damage or mutagenicity evaluated using the comet assay and micronucleus test. Treatment with ellagic acid (10-100 mg·kg(-1)) decreased triglyceride and glucose levels, while treatments with PSAE and gallic acid had no effect. Conclusion. Pecan shell toxicity might be associated with high concentrations of inorganic elements such as Mn, Al, Cu, and Fe acting on the central nervous system, besides phytochemical components, suggesting that the definition of the safe dose should take into account the consumption of micronutrients.
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Affiliation(s)
- Luiz Carlos S Porto
- Laboratory of Toxicological Genetics, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil; University of the Campaign Region (URCAMP), Tancredo Neves Avenue 210, 97670000 São Borja, RS, Brazil
| | - Juliana da Silva
- Laboratory of Toxicological Genetics, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil
| | - Karen Sousa
- Laboratory of Toxicological Genetics, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil
| | - Mariana L Ambrozio
- Laboratory of Toxicological Genetics, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil
| | - Aline de Almeida
- Laboratory of Toxicological Genetics, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil
| | - Carla Eliete I Dos Santos
- Physics, Statistics, and Mathematics Institute, Federal University of Rio Grande (FURG), Barão do Caí 125, 95500000 Santo Antônio da Patrulha, RS, Brazil
| | - Johnny F Dias
- Ion Implantation Laboratory, Physics Institute, Federal University of Rio Grande do Sul (UFRGS), Bento Gonçalves Avenue 9500, 91501970 Porto Alegre, RS, Brazil
| | - Mariangela C Allgayer
- Laboratory of Clinical Pathology, Veterinary Hospital, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil
| | - Marcela S Dos Santos
- Laboratory of Pharmacognosis and Phytochemistry, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil
| | - Patrícia Pereira
- Pharmacology Department, Institute of Basic Sciences of Health, Federal University of Rio Grande do Sul (UFRGS), Sarmento Leite Street 500/305, 90050-170 Porto Alegre, RS, Brazil
| | - Alexandre B F Ferraz
- Laboratory of Pharmacognosis and Phytochemistry, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil
| | - Jaqueline N Picada
- Laboratory of Toxicological Genetics, Lutheran University of Brazil (ULBRA), Farroupilha Avenue 8001, 92425-900 Canoas, RS, Brazil
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11
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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: 1.0] [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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12
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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: 1.2] [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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13
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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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