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Malafaia G, Nascimento ÍF, Estrela FN, Guimarães ATB, Ribeiro F, da Luz TM, Rodrigues ASDL. Corrigendum to "Green toxicology approach involving polylactic acid biomicroplastics and neotropical tadpoles: (Eco)toxicological safety or environmental hazard?" [Science of The Total Environment, 783 (2021), 146,994]. Sci Total Environ 2024; 912:168871. [PMID: 38036141 DOI: 10.1016/j.scitotenv.2023.168871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 12/02/2023]
Affiliation(s)
- Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil; Post-Graduate Program in Ecology and Conservation of Natural Resources, Federal University of Uberlândia, MG, Brazil.
| | | | - Fernanda Neves Estrela
- Biological Research Laboratory, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil
| | - Abraão Tiago Batista Guimarães
- Biological Research Laboratory, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil
| | - Fabianne Ribeiro
- Department of Biology & CESAM - Center for Environmental and Marine Studies, University of Aveiro, Portugal
| | | | - Aline Sueli de Lima Rodrigues
- Post-Graduate Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil
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2
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Souza SSD, Gomes AR, Guimarães ATB, Matos LPD, Mendonça JDS, Luz TMD, Matos SGDS, Rodrigues ASDL, Senthil-Nathan S, Rakib MRJ, Kamaraj C, Rocha TL, Islam ARMT, Malafaia G. Exposure to microcrystallized cellulose affects the health of tadpoles and sheds light on the threat these materials pose to amphibians. Environ Pollut 2024; 343:123236. [PMID: 38160776 DOI: 10.1016/j.envpol.2023.123236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 12/18/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
The increasing use of cellulose-based materials (CBMs) has provided beneficial applications in different sectors. However, its release into environments may represent an ecological risk, therefore demanding that ecotoxicological studies be conducted to understand the risks (current and future) of CBM pollution. Thus, we evaluated the possible effects of microcrystalline cellulose (CMs) in Physalaemus cuvieri tadpoles. After seven days of exposure to CMs (at 58.29 and 100 mg/L), the animals were subjected to behavioral evaluation, and different biomarkers (biometric and biochemical) were evaluated. Although our data do not point to a neurotoxic effect of CMs (inferred by the absence of behavioral changes and changes in AChE and BChE activity), animals exposed to CMs showed differences in body condition. Furthermore, we noticed an increase in the frequency of erythrocyte nuclear abnormalities and DNA damage, which were correlated with the ingestion of CMs. We noticed that the antioxidant activity of tadpoles exposed to CMs (inferred by SOD, CAT, and DPPH radical scavenging activity) was insufficient to control the increase in ROS and MDA production. Furthermore, exposure to CMs induced a predominant Th2-specific immune response, marked by suppressed IFN-γ and increased IL-10 levels, with a consequent reduction in NO levels. Principal component analysis and IBRv-2 indicate, in general, a primarily more toxic response to animals exposed to the highest CM concentration. Therefore, our study evidence that CMs affect the health of P. cuvieri tadpoles and sheds light on the threat these materials pose to amphibians.
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Affiliation(s)
- Sindoval Silva de Souza
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil
| | - Alex Rodrigues Gomes
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Post-Graduation Program in Ecology, Conservation, And Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | | | - Letícia Paiva de Matos
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil
| | - Juliana Dos Santos Mendonça
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil
| | - Thiarlen Marinho da Luz
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, And Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | | | - Aline Sueli de Lima Rodrigues
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu, 627 412, India
| | | | | | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, Goiás, Brazil; Post-Graduation Program in Biology of the Parasite-Host Relationship (PPGBRPH), Institute of Tropical Pathology and Public Health, Federal University of Goiás, Brazil
| | | | - Guilherme Malafaia
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, And Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biology of the Parasite-Host Relationship (PPGBRPH), Institute of Tropical Pathology and Public Health, Federal University of Goiás, Brazil.
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Chagas TQ, Freitas ÍN, Montalvão MF, Nóbrega RH, Machado MRF, Charlie-Silva I, Araújo APDC, Guimarães ATB, Alvarez TGDS, Malafaia G. Corrigendum to 'Multiple endpoints of polylactic acid biomicroplastic toxicity in adult zebrafish (Danio rerio)' [Chemosphere, 277 (2021), 130279]. Chemosphere 2024; 346:140508. [PMID: 37926057 DOI: 10.1016/j.chemosphere.2023.140508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Affiliation(s)
- Thales Quintão Chagas
- Cerrado Natural Resources Conservation, Goiano Federal University, Urutaí Campus, Urutaí, Brazil
| | | | - Mateus Flores Montalvão
- Ecology and Natural Resources Conservation, Federal University of Uberlândia, Uberlândia, Brazil
| | - Rafael Henrique Nóbrega
- Reproductive and Molecular Biology Group, Morphology Department, São Paulo State University, Botucatu, Brazil
| | - Monica Rodrigues Ferreira Machado
- Department of Biological Sciences, Zebrafish Research and Reproduction Laboratory (LABFISH), Federal University of Jataí, Jataí, Brazil
| | - Ives Charlie-Silva
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Amanda Pereira da Costa Araújo
- Cerrado Natural Resources Conservation, Goiano Federal University, Urutaí Campus, Urutaí, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, Urutaí, Brazil
| | - Abraão Tiago Batista Guimarães
- Cerrado Natural Resources Conservation, Goiano Federal University, Urutaí Campus, Urutaí, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, Urutaí, Brazil; Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil
| | | | - Guilherme Malafaia
- Cerrado Natural Resources Conservation, Goiano Federal University, Urutaí Campus, Urutaí, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, Urutaí, Brazil; Ecology and Natural Resources Conservation, Federal University of Uberlândia, Uberlândia, Brazil; Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil.
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Montalvão MF, Gomes AR, Guimarães ATB, Rodrigues ASDL, Matos LPD, Mendonça JDS, da Luz TM, Matos SGDS, Rahman MS, Ragavendran C, Senthil-Nathan S, Guru A, Rakib MRJ, Mubarak NM, Rahman MM, Rocha TL, Islam ARMT, Malafaia G. Toxicity of carbon nanofibers in earthworms (Lumbricus terrestris) naturally infected with Monocystis sp. Sci Total Environ 2024; 906:167712. [PMID: 37832683 DOI: 10.1016/j.scitotenv.2023.167712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/07/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023]
Abstract
Although the ecotoxicity of carbon-based nanomaterials (CBNs) is known, the potential effect of carbon nanofibers (CNFs) on edaphic organisms has been insufficiently explored. Thus, we aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28 days of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. Although we did not notice a concentration-response for several of the biomarkers, when taken together and after the application of Integrated Biomarker Response (IBR) and principal component analysis (PCA), we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. This was mainly determined by inhibiting antioxidant activity in the seminal vesicle, biochemical biomarkers assessed in muscle and intestine, and histomorphometric muscle biomarkers from earthworms exposed to CNFs at 100 mg/kg. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms.
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Affiliation(s)
- Mateus Flores Montalvão
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Alex Rodrigues Gomes
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Letícia Paiva de Matos
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Juliana Dos Santos Mendonça
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Thiarlen Marinho da Luz
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Stênio Gonçalves da Silva Matos
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - M Safiur Rahman
- Department of Environmental Science and Disaster Management, Noakhali Science and Technology University, Noakhali 3814, Bangladesh.
| | - Chinnasamy Ragavendran
- Saveetha Dental College and Hospitals (SIMATS), Saveetha University Chennai, Tamil Nadu, India
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India.
| | - Ajay Guru
- Department of Cariology, Saveetha Dental College and Hospitals, SIMATS, Chennai 600 077, Tamil Nadu, India.
| | | | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam; Department of Biosciences, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | | | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, Goiás, Brazil.
| | | | - Guilherme Malafaia
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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Souza SSD, Gomes AR, Guimarães ATB, Rodrigues ASDL, de Matos LP, Dos Santos Mendonça J, da Luz TM, Matos SGDS, Rahman MS, Ragavendran C, Senthil-Nathan S, Guru A, Rakib MRJ, Mubarak NM, Rahman MM, Rocha TL, Islam ARMT, Malafaia G. Cellulose microcrystalline: A promising ecofriendly approach to control Culex quinquefasciatus larvae. Sci Total Environ 2023; 901:165952. [PMID: 37536599 DOI: 10.1016/j.scitotenv.2023.165952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/29/2023] [Accepted: 07/30/2023] [Indexed: 08/05/2023]
Abstract
The growing use of synthetic chemical compounds/substances in vector control of mosquitoes, associated with their adverse effects on the environment and non-target organisms, has demanded the development of eco-friendly alternatives. In this context, this study aimed to evaluate the larvicidal action of different cellulose microcrystalline (CMs) concentrations and investigate their toxicity mechanisms in Culex quinquefasciatus fourth instar larvae as a model species. Probit analysis revealed that the median lethal concentrations (LC50) for 24 h and 36 h exposure were 100 and 58.29 mg/L, respectively. We also showed that such concentrations induced a redox imbalance in the larvae, marked by an increase in the production of reactive oxygen species (ROS) and thiobarbituric acid reactive substances (TBARS), as well as a reduction in the activity of superoxide dismutase (SOD) and catalase (CAT). Furthermore, different alterations in the external morphology of the larvae were associated with the ingestion of CMs. On the other hand, exposure of adult zebrafish (Danio rerio) to LC5024h and LC5036h for seven days did not induce any behavioral changes or alterations mutagenic, genotoxic, biochemical, or in the production of cytokines IFN-γ and IL-10. Thus, taken together, our study demonstrates for the first time that the use of CMs can constitute a promising strategy in the control of C. quinquefasciatus larvae, combining insecticidal efficiency with an "eco-friendly" approach in the fight against an important mosquito vector of several human diseases.
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Affiliation(s)
- Sindoval Silva de Souza
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Alex Rodrigues Gomes
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Abraão Tiago Batista Guimarães
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Letícia Paiva de Matos
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Juliana Dos Santos Mendonça
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - Thiarlen Marinho da Luz
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Stênio Gonçalves da Silva Matos
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil
| | - M Safiur Rahman
- Department of Environmental Science and Disaster Management, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Chinnasamy Ragavendran
- Saveetha Dental College and Hospitals (SIMATS), Saveetha University Chennai, Tamil Nadu, India
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India
| | - Ajay Guru
- Department of Cariology, Saveetha Dental College and Hospitals, SIMATS, Chennai 600 077, Tamil Nadu, India
| | | | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam; Department of Biosciences, Saveetha School of Engineering, Saveetha institute of Medical and Technical Sciences, Chennai, India
| | | | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | | | - Guilherme Malafaia
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil.
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Montalvão MF, Chagas TQ, Rodrigues ASDL, Guimarães ATB, Malafaia G. Long-term exposure of zebrafish juveniles to carbon nanofibers at predicted environmentally relevant concentrations: Outspreading warns about ecotoxicological risks to freshwater fish. Sci Total Environ 2023; 878:163153. [PMID: 37003323 DOI: 10.1016/j.scitotenv.2023.163153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/24/2023] [Accepted: 03/25/2023] [Indexed: 05/13/2023]
Abstract
Although carbon-based nanomaterials (CNMs) toxicity has already been demonstrated in some animal models, little is known about the impact of carbon nanofibers (CNFs) on aquatic vertebrates. Thus, we aimed to evaluate the possible effects of long-term exposure of zebrafish (Danio rerio) juveniles (90 days) to CNFs in predicted environmentally relevant concentrations (10 ng/L and 10 μg/L). Our data revealed that exposure to CNFs did not affect the growth and development of the animals, in addition to not having induced locomotor alterations or anxiety-like behavior. On the other hand, we observed that zebrafish exposed to CNFs showed a response deficit to the vibratory stimulus test, alteration in the density of neuromasts recorded in the final ventral region, as well as an increase in thiobarbituric acid reactive substances levels and a reduction in total antioxidant activity, nitric oxide, and acetylcholinesterase activity in the brain. Such data were directly associated with a higher concentration of total organic carbon in the brain, which suggests the bioaccumulation of CNFs. Furthermore, exposure to CNFs induced a picture suggestive of genomic instability, inferred by the increased frequency of nuclear abnormalities and DNA damage in circulating erythrocytes. Although the individual analyses of the biomarkers did not point to a concentration-dependent effect, the principal component analysis (PCA) and the Integrated Biomarker Response Index (IBRv2) indicate a more prominent effect induced by the higher CNFs concentration (10 μg/L). Therefore, our study confirms the impact of CNFs in the studied model (D. rerio) and sheds light on the ecotoxicological risks of these nanomaterials to freshwater fish. Based on the ecotoxicological screening provided by our study, new horizons are opened for investigations into the mechanisms of action of CNFs, which will help understand the magnitude of the impact of these materials on aquatic biota.
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Affiliation(s)
- Mateus Flores Montalvão
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Thales Quintão Chagas
- State Secretariat of Environmental Development (SEDAM), Sedam's Conservation Units Coordination (CUC), Conservation Unit Management Division, Porto Velho, RO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Guilherme Malafaia
- Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Brazilian Academy of Young Scientists (ABJC), Brazil.
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7
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Gomes AR, de Matos LP, Guimarães ATB, Freitas ÍN, Luz TMD, Silva AM, Silva Matos SGD, Rodrigues ASDL, Ferreira RDO, Islam ARMT, Rahman MM, Ragavendran C, Kamaraj C, Mubarak NM, Arias AH, Gomes PCS, Silva FG, Malafaia G. Plant-ZnO nanoparticles interaction: An approach to improve guinea grass (Panicum maximum) productivity and evaluation of the impacts of its ingestion by freshwater teleost fish. J Hazard Mater 2023; 451:131173. [PMID: 36924744 DOI: 10.1016/j.jhazmat.2023.131173] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/22/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
We aimed to evaluate the possible effects of the application of zinc oxide nanoparticles [ZnO NPs; 68.96 ± 33.71 nm; at 100 and 500 mg/kg in a soil mixture of the Typic Dystrophic Red Latosol type and sand (2:1 ratio)] in the cultivation of Panicum maximum (until 125 days), using different biomarkers in addition to evaluating the uptake of Zn by the plants. Furthermore, we assessed the possible transfer of ZnO NPs from P. maximum leaves to zebrafish and their potential. Plants cultivated in substrates with ZnO NPs at 500 mg/kg showed reduced germination rate and growth. However, at 100 mg/kg, plants showed higher biomass and productivity, associated with higher Zn uptake, without inducing oxidative and nitrosative stress. Zinc content in zebrafish was not associated with ingesting leaves of P. maximum cultivated in substrate containing ZnCl2 or ZnO NPs or with genotoxic, mutagenic, and biochemical effects. In conclusion, ZnO NPs (at 100 mg/kg) are promising in the cultivation of P. maximum, and their ingestion by zebrafish did not cause changes in the evaluated biomarkers. However, we recommend that studies with other animal models be conducted to comprehensively assess the ecotoxicological hazard associated with applying ZnO NPs in soil.
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Affiliation(s)
- Alex Rodrigues Gomes
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Agronomy, Goiano Federal Institute - Campus Rio Verde, GO, Brazil
| | - Letícia Paiva de Matos
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Ítalo Nascimento Freitas
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Thiarlen Marinho da Luz
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Abner Marcelino Silva
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | | | - Raíssa de Oliveira Ferreira
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Chinnasamy Ragavendran
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
| | - Chinnaperumal Kamaraj
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research and Virtual Education, SRM Institute of Science and Technology (SRMIST), Kattankulathur 603203, Tamil Nadu, India
| | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Andrés Hugo Arias
- National University of the South Bahía Blanca, CONICET Instituto Argentino de Oceanografía (IADO), Argentina
| | - Paula Cristine Silva Gomes
- Post-Graduation Program in Environmental Engineering, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | - Fabiano Guimarães Silva
- Post-Graduation Program in Agronomy, Goiano Federal Institute - Campus Rio Verde, GO, Brazil
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Brazilian Academy of Young Scientists (ABJC), Brazil.
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8
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Gomes AR, Guimarães ATB, Matos LPD, Silva AM, Rodrigues ASDL, de Oliveira Ferreira R, Islam ARMT, Rahman MM, Ragavendran C, Kamaraj C, Silva FG, Malafaia G. Potential ecotoxicity of substrate-enriched zinc oxide nanoparticles to Physalaemus cuvieri tadpoles. Sci Total Environ 2023; 873:162382. [PMID: 36828072 DOI: 10.1016/j.scitotenv.2023.162382] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Although the ecotoxicological effects of ZnO nanoparticles (ZnO NPs) have already been reported in different taxa, little is known about their impacts on amphibians. Thus, we aimed to evaluate the potential effects of exposure of Physalaemus cuvieri tadpoles to substrates enriched with ZnO NPs (and with its ionic counterpart, Zn+2, ZnCl2 - both at 100 mg/kg) previously used in the cultivation of Panicum maximum (Guinea grass). We showed that although exposure for 21 days did not impact the survival, growth, and development of tadpoles, we noted an increase in the frequency of erythrocyte nuclear abnormalities in the "ZnCl2" and "ZnONP" groups, which was associated with suppression of antioxidant activity in the animals (inferred by SOD and CAT activity and DPPH free radical scavenging capacity). In the tadpoles of the "ZnONP" group, we also noticed a reduction in creatinine and bilirubin levels, alpha-amylase activity, and an increase in alkaline phosphatase activity. But the treatments did not alter the activity of the enzymes lactate dehydrogenase and gamma-glutamyl-transferase and total protein and carbohydrate levels. On the other hand, we report a cholinesterase and hypotriglyceridemic effect in the "ZnCl2" and "ZnONP" groups. Zn bioaccumulation in animals, from ZnO NPs, from Zn+2 released from them, or both, has been associated with causing these changes. Finally, principal component analysis (PCA) and the values of the "Integrated Biomarker Response" index revealed that the exposure of animals to substrates enriched with ZnO NPs caused more pronounced effects than those attributed to its ionic counterpart. Therefore, our study reinforces the need to consider the environmental risks of using these nanomaterials for agricultural purposes for amphibians.
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Affiliation(s)
- Alex Rodrigues Gomes
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Agronomy, Goiano Federal Institute - Campus Rio Verde, GO, Brazil
| | | | - Letícia Paiva de Matos
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Abner Marcelino Silva
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Raíssa de Oliveira Ferreira
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Chinnasamy Ragavendran
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
| | - Chinnaperumal Kamaraj
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research and Virtual Education, SRM Institute of Science and Technology (SRMIST), Kattankulathur 603203, Tamil Nadu, India
| | - Fabiano Guimarães Silva
- Post-Graduation Program in Agronomy, Goiano Federal Institute - Campus Rio Verde, GO, Brazil
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Brazilian Academy of Young Scientists (ABJC), Brazil.
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9
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Gomes AR, Freitas ÍN, Luz TMD, Guimarães ATB, Araújo APDC, Kamaraj C, Rahman MM, Islam ARMT, Arias AH, Silva FBD, Karthi S, Cruz-Santiago O, Silva FG, Malafaia G. Multiple endpoints of polyethylene microplastics toxicity in vascular plants of freshwater ecosystems: A study involving Salvinia auriculata (Salviniaceae). J Hazard Mater 2023; 450:131069. [PMID: 36857830 DOI: 10.1016/j.jhazmat.2023.131069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 01/21/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
More recently, the number of studies on the impacts of microplastics (MPs) on plants has drawn attention considerably. However, many of these studies focused on terrestrial plants, with vascular plants from freshwater ecosystems being little studied. Thus, we aimed to evaluate the possible effects of exposure of Salvinia auriculata, for 28 days, to different concentrations of polyethylene MPs (PE MPs - diameter: 35.46 ± 18.17 µm) (2.7 ×108 and 8.1 ×108 particles/m3), using different biomarkers. Our data indicated that exposure to PE MPs caused alterations in plant growth/development (inferred by the lower floating frond number, "root" length, and the number of "roots"), as well as lower dispersion of individuals in the experimental units. Plants exposed to PE MPs also showed lower epidermal thickness (abaxial leaf face) and a longer length of the central leaf vein and vascular bundle area. Ultrastructural analyses of S. auriculata exposed to MPs revealed rupture of some epidermal cells and trichomes on the adaxial and abaxial, leaf necrosis, and chlorosis. In the "roots", we observed dehydrated filamentous structures with evident deformations in plants exposed to the pollutants. Both on the abaxial leaf face and on the "roots", the adherence of PE MPs was observed. Furthermore, exposure to PE MPs induced lower chlorophyll content, cell membrane damage, and redox imbalance, marked by reduced catalase and superoxide dismutase activity and increased production of reactive oxygen and nitrogen species as well as malondialdehyde. However, in general, we did not observe the dose-response effect for the evaluated biomarkers. The values of the integrated biomarker response index, the principal component analysis (PCA) results and the hierarchical clustering analysis confirmed the similarity between the responses of plants exposed to different PE MPs concentrations. Therefore, our study sheds light on how PE MPs can affect S. auriculata and reinforces that putting these pollutants in freshwater environments might be hazardous from an ecotoxicological point of view.
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Affiliation(s)
- Alex Rodrigues Gomes
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Agronomy, Goiano Federal Institute, Rio Verde, GO, Brazil
| | - Ítalo Nascimento Freitas
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Thiarlen Marinho da Luz
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | | | - Chinnaperumal Kamaraj
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research and Virtual Education, SRM Institute of Science and Technology (SRMIST), Kattankulathur 603203, Tamil Nadu, India
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | | | - Andrés Hugo Arias
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Florida 8000, Complejo CCT CONICET Bahía Blanca, Bahía Blanca, Argentina
| | - Fábia Barbosa da Silva
- Laboratory of Tissue Culture, Goiano Federal Institute, Rio Verde, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Sengodan Karthi
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India
| | - Omar Cruz-Santiago
- Programa Multidisciplinario de Posgrado en Ciencias Ambientales (PMPCA), Agenda Ambiental, Universidad Autónoma de San Luis Potosí, Av. Manuel Nava 201, Zona Universitaria, 78210 San Luis Potosí, Mexico
| | - Fabiano Guimarães Silva
- Post-Graduation Program in Agronomy, Goiano Federal Institute, Rio Verde, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Programa Multidisciplinario de Posgrado en Ciencias Ambientales (PMPCA), Agenda Ambiental, Universidad Autónoma de San Luis Potosí, Av. Manuel Nava 201, Zona Universitaria, 78210 San Luis Potosí, Mexico; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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10
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Ferreira RDO, Guimarães ATB, Luz TMD, Rodrigues ASDL, Islam ARMT, Rahman MM, Ragavendran C, Kamaraj C, Charlie-Silva I, Durigon EL, Braz HLB, Arias AH, Santiago OC, Barceló D, Malafaia G. First report on the toxicity of SARS-CoV-2, alone and in combination with polyethylene microplastics in neotropical fish. Sci Total Environ 2023; 882:163617. [PMID: 37088384 PMCID: PMC10122543 DOI: 10.1016/j.scitotenv.2023.163617] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/10/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
The COVID-19 pandemic has caused unprecedented negative impacts in the modern era, including economic, social, and public health losses. On the other hand, the potential effects that the input of SARS-CoV-2 in the aquatic environment from sewage may represent on non-target organisms are not well known. In addition, it is not yet known whether the association of SARS-CoV-2 with other pollutants, such as microplastics (MPs), may further impact the aquatic biota. Thus, we aimed to evaluate the possible ecotoxicological effects of exposure of male adults Poecilia reticulata, for 15 days, to inactivated SARS-CoV-2 (0.742 pg/L; isolated SARS.CoV2/SP02.2020.HIAE.Br) and polyethylene MP (PE MPs) (7.1 × 104 particles/L), alone and in combination, from multiple biomarkers. Our data suggest that exposure to SARS-CoV-2 induced behavioral changes (in the open field test), nephrotoxic effect (inferred by the increase in creatinine), hepatotoxic effect (inferred by the increase in bilirubin production), imbalance in the homeostasis of Fe, Ca, and Mg, as well as an anticholinesterase effect in the animals [marked by the reduction of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) activity]. On the other hand, exposure to PE MPs induced a genotoxic effect (assessed by the comet assay), as well as an increase in enzyme activity alpha-amylase, alkaline phosphatase, and carboxylesterases. However, we did not show synergistic, antagonistic, or additive effects caused by the combined exposure of P. reticulata to SARS-CoV-2 and PE MPs. Principal component analysis (PCA) and values from the "Integrated Biomarker Response" index indicate that exposure to SARS-CoV-2 was determinant for a more prominent effect in the evaluated animals. Therefore, our study sheds light on the ecotoxicity of the new coronavirus in non-target organisms and ratifies the need for more attention to the impacts of COVID-19 on aquatic biota.
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Affiliation(s)
- Raíssa de Oliveira Ferreira
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), JordiGirona 1826, 08034 Barcelona, Spain
| | | | - Thiarlen Marinho da Luz
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Chinnasamy Ragavendran
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
| | - Chinnaperumal Kamaraj
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research and Virtual Education, SRM Institute of Science and Technology (SRMIST), Kattankulathur 603203, Tamil Nadu, India
| | - Ives Charlie-Silva
- Chemistry Institute, São Paulo State University (UNESP) Campus Araraquara, Brazil
| | - Edison Luiz Durigon
- Laboratory of Clinical and Molecular Virology, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | | | - Andrés Hugo Arias
- National University of the South Bahía Blanca, CONICET Instituto Argentino de Oceanografía (IADO), Argentina
| | - Omar Cruz Santiago
- Multidisciplinary Postgraduate Program for Environmental Sciences, Universidad Autónoma de San Luis Potosí, Mexico
| | - Damià Barceló
- Catalan Institute for Water Research (ICRA-CERCA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, 17003 Girona, Spain
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Brazilian Academy of Young Scientists (ABJC), Brazil.
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11
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Luz TMD, Guimarães ATB, Matos SGDS, de Souza SS, Gomes AR, Rodrigues ASDL, Durigon EL, Charlie-Silva I, Freitas ÍN, Islam ARMT, Rahman MM, Silva AM, Malafaia G. Exposure of adult zebrafish (Danio rerio) to SARS-CoV-2 at predicted environmentally relevant concentrations: Outspreading warns about ecotoxicological risks to freshwater fish. Sci Total Environ 2023; 880:163269. [PMID: 37028679 PMCID: PMC10076041 DOI: 10.1016/j.scitotenv.2023.163269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/15/2023]
Abstract
While the multifaceted social, economic, and public health impacts associated with the COVID-19 pandemic are known, little is known about its effects on non-target aquatic ecosystems and organisms. Thus, we aimed to evaluate the potential ecotoxicity of SARS-CoV-2 lysate protein (SARS.CoV2/SP02.2020.HIAE.Br) in adult zebrafish (Danio rerio) at predicted environmentally relevant concentrations (0.742 and 2.226 pg/L), by 30 days. Although our data did not show locomotor alterations or anxiety-like or/and anxiolytic-like behavior, we noticed that exposure to SARS-CoV-2 negatively affected habituation memory and social aggregation of animals in response to a potential aquatic predator (Geophagus brasiliensis). An increased frequency of erythrocyte nuclear abnormalities was also observed in animals exposed to SARS-CoV-2. Furthermore, our data suggest that such changes were associated with a redox imbalance [↑ROS (reactive oxygen species), ↑H2O2 (hydrogen peroxide), ↓SOD (superoxide dismutase), and ↓CAT (catalase)], cholinesterasic effect [↑AChE (acetylcholinesterase) activity], as well as the induction of an inflammatory immune response [↑NO (nitric oxide), ↑IFN-γ (interferon-gamma), and ↓IL-10 (interleukin-10)]. For some biomarkers, we noticed that the response of the animals to the treatments was not concentration-dependent. However, principal component analysis (PCA) and the "Integrated Biomarker Response" index (IBRv2) indicated a more prominent ecotoxicity of SARS-CoV-2 at 2.226 pg/L. Therefore, our study advances knowledge about the ecotoxicological potential of SARS-CoV-2 and reinforces the presumption that the COVID-19 pandemic has negative implications beyond its economic, social, and public health impacts.
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Affiliation(s)
- Thiarlen Marinho da Luz
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | | | - Sindoval Silva de Souza
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Alex Rodrigues Gomes
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Edison Luiz Durigon
- Laboratory of Clinical and Molecular Virology, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | - Ives Charlie-Silva
- Chemistry Institute, São Paulo State University (UNESP) - Campus Araraquara, Brazil
| | - Ítalo Nascimento Freitas
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | | | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Abner Marcelino Silva
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Brazilian Academy of Young Scientists (ABJC), Brazil.
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12
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Freitas ÍN, Dourado AV, Araújo APDC, Souza SSD, Luz TMD, Guimarães ATB, Gomes AR, Islam ARMT, Rahman MM, Arias AH, Mubarak Ali D, Ragavendran C, Kamaraj C, Malafaia G. Toxicity assessment of SARS-CoV-2-derived peptides in combination with a mix of pollutants on zebrafish adults: A perspective study of behavioral, biometric, mutagenic, and biochemical toxicity. Sci Total Environ 2023; 858:159838. [PMID: 36343805 PMCID: PMC9635251 DOI: 10.1016/j.scitotenv.2022.159838] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/26/2022] [Accepted: 10/26/2022] [Indexed: 05/19/2023]
Abstract
The dispersion of SARS-CoV-2 in aquatic environments via the discharge of domestic and hospital sewage has been confirmed in different locations. Thus, we aimed to evaluate the possible impacts of zebrafish (Danio rerio) exposure to SARS-CoV-2 peptide fragments (PSPD-2001, 2002, and 2003) alone and combined with a mix of emerging pollutants. Our data did not reveal the induction of behavioral, biometric, or mutagenic changes. But we noticed an organ-dependent biochemical response. While nitric oxide and malondialdehyde production in the brain, gills, and muscle did not differ between groups, superoxide dismutase activity was reduced in the "PSPD", "Mix", and "Mix+PSPD" groups. An increase in catalase activity and a reduction in DPPH radical scavenging activity were observed in the brains of animals exposed to the treatments. However, the "Mix+PSPD" group had a higher IBRv2 value, with NO levels (brain), the reduction of acetylcholinesterase activity (muscles), and the DPPH radical scavenging activity (brain and muscles), the most discriminant factors for this group. The principal component analysis (PCA) and hierarchical clustering analysis indicated a clear separation of the "Mix+PSPD" group from the others. Thus, we conclude that exposure to viral fragments, associated with the mix of pollutants, induced more significant toxicity in zebrafish adults than in others.
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Affiliation(s)
- Ítalo Nascimento Freitas
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Amanda Vieira Dourado
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Sindoval Silva de Souza
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Thiarlen Marinho da Luz
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Alex Rodrigues Gomes
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | | | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Andrés Hugo Arias
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Florida 8000, Complejo CCT CONICET Bahía Blanca, Edificio E1, B8000BFW Bahía Blanca, Argentina
| | - Davoodbasha Mubarak Ali
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Chinnasamy Ragavendran
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
| | - Chinnaperumal Kamaraj
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research and Virtual Education, SRM Institute of Science and Technology (SRMIST), Kattankulathur 603203, Tamil Nadu, India
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil.
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13
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Guimarães ATB, Freitas ÍN, Mubarak NM, Rahman MM, Rodrigues FP, Rodrigues ASDL, Barceló D, Islam ARMT, Malafaia G. Exposure to polystyrene nanoplastics induces an anxiolytic-like effect, changes in antipredator defensive response, and DNA damage in Swiss mice. J Hazard Mater 2023; 442:130004. [PMID: 36152541 DOI: 10.1016/j.jhazmat.2022.130004] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Although the in vivo toxicity of nanoplastics (NPs) has already been reported in different model systems, their effects on mammalian behavior are poorly understood. Thus, we aimed to evaluate whether exposure to polystyrene (PS) NPs (diameter: 23.03 ± 0.266 nm) alters the behavior (locomotor, anxiety-like and antipredator) of male Swiss mice, induces brain antioxidant activity, and erythrocyte DNA damage. For this, the animals were exposed to NPs for 20 days at different doses (6.5 ng/kg and 6500 ng/kg). Initially, we did not observe any effect of pollutants on the locomotor activity of the animals (inferred via open field test and Basso mouse scale for locomotion). However, we noticed an anxiolytic-like behavior (in the open field test) and alterations in the antipredatory defensive response of mice exposed to PS NPs, when confronted with their predator potential (snake, Pantherophis guttatus). Furthermore, such changes were associated with suppressing brain antioxidant activity, inferred by lower DPPH radical scavenging activity, reduced total glutathione content, as well as the translocation and accumulation of NPs in the brain of the animals. In addition, we noted that the treatments induced DNA damage, evaluated via a single-cell gel electrophoresis assay (comet assay) applied to circulating erythrocytes of the animals. However, we did not observe a dose-response effect for all biomarkers evaluated and the estimated accumulation of PS NPs in the brain. The values of the integrated biomarker response index and the results of the principal component analysis (PCA) and the hierarchical clustering analysis confirmed the similarity between the responses of animals exposed to different doses of PS NPs. Therefore, our study sheds light on how PS NPs can impact mammals and reinforce the ecotoxicological risk associated with the dispersion of these pollutants in natural environments and their uptake by mammals.
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Affiliation(s)
| | - Ítalo Nascimento Freitas
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | | | | | - Damià Barceló
- Catalan Institute for Water Research (ICRA-CERCA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, 17003, Girona, Spain; Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), JordiGirona 1826, 08034, Barcelona, Spain
| | | | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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14
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Freitas ÍN, Dourado AV, da Silva Matos SG, de Souza SS, da Luz TM, Rodrigues ASDL, Guimarães ATB, Mubarak NM, Rahman MM, Arias AH, Malafaia G. Short-term exposure of the mayfly larvae (Cloeon dipterum, Ephemeroptera: Baetidae) to SARS-CoV-2-derived peptides and other emerging pollutants: A new threat for the aquatic environments. Sci Total Environ 2022; 849:157813. [PMID: 35931160 PMCID: PMC9345649 DOI: 10.1016/j.scitotenv.2022.157813] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/26/2022] [Accepted: 07/31/2022] [Indexed: 05/09/2023]
Abstract
The input of SARS-CoV-2 or its fragments into freshwater ecosystems (via domestic or hospital sewage) has raised concerns about its possible impacts on aquatic organisms. Thus, using mayfly larvae [Cloeon dipterum (L.), Ephemeroptera: Baetidae] as a model system, we aimed to evaluate the possible effects of the combined short exposure of SARS-CoV-2-derived peptides (named PSPD-2001, PSPD-2002, and PSPD-2003 - at 266.2 ng/L) with multiple emerging pollutants at ambient concentrations. After six days of exposure, we observed higher mortality of larvae exposed to SARS-CoV-2-derived peptides (alone or in combination with the pollutant mix) and a lower-body condition index than those unexposed larvae. In the "PSPD" and "Mix+PSPD" groups, the activity of superoxide dismutase, catalase, DPPH radical scavenging activity, and the total thiol levels were also lower than in the "control" group. In addition, we evidenced the induction of nitrosative stress (inferred by increased nitrite production) and reduced acetylcholinesterase activity by SARS-CoV-2-derived peptides. On the other hand, malondialdehyde levels in larvae exposed to treatments were significantly lower than in unexposed larvae. The values of the integrated biomarker response index and the principal component analysis (PCA) results confirmed the similarity between the responses of animals exposed to SARS-CoV-2-derived peptides (alone and in combination with the pollutant mix). Although viral peptides did not intensify the effects of the pollutant mix, our study sheds light on the potential ecotoxicological risk associated with the spread of the new coronavirus in aquatic environments. Therefore, we recommend exploring this topic in other organisms and experimental contexts.
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Affiliation(s)
- Ítalo Nascimento Freitas
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | - Amanda Vieira Dourado
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | - Sindoval Silva de Souza
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Thiarlen Marinho da Luz
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil
| | | | | | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Andrés Hugo Arias
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Florida 8000, Complejo CCT CONICET Bahía Blanca, Bahía Blanca, Argentina
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil.
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15
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Gonçalves SDO, Luz TMD, Silva AM, de Souza SS, Montalvão MF, Guimarães ATB, Ahmed MAI, Araújo APDC, Karthi S, Malafaia G. Can spike fragments of SARS-CoV-2 induce genomic instability and DNA damage in the guppy, Poecilia reticulate? An unexpected effect of the COVID-19 pandemic. Sci Total Environ 2022; 825:153988. [PMID: 35192827 PMCID: PMC8857768 DOI: 10.1016/j.scitotenv.2022.153988] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 05/03/2023]
Abstract
The identification of SARS-CoV-2 particles in wastewater and freshwater ecosystems has raised concerns about its possible impacts on non-target aquatic organisms. In this particular, our knowledge of such impacts is still limited, and little attention has been given to this issue. Hence, in our study, we aimed to evaluate the possible induction of mutagenic (via micronucleus test) and genotoxic (via single cell gel electrophoresis assay, comet assay) effects in Poecilia reticulata adults exposed to fragments of the Spike protein of the new coronavirus at the level of 40 μg/L, denominated PSPD-2002. As a result, after 10 days of exposure, we have found that animals exposed to the peptides demonstrated an increase in the frequency of erythrocytic nuclear alteration (ENA) and all parameters assessed in the comet assay (length tail, %DNA in tail and Olive tail moment), suggesting that PSPD-2002 peptides were able to cause genomic instability and erythrocyte DNA damage. Besides, these effects were significantly correlated with the increase in lipid peroxidation processes [inferred by the high levels of malondialdehyde (MDA)] reported in the brain and liver of P. reticulata and with the reduction of the superoxide dismutase (SOD) and catalase (CAT) activity. Thus, our study constitutes a new insight and promising investigation into the toxicity associated with the dispersal of SARS-CoV-2 peptide fragments in freshwater environments.
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Affiliation(s)
- Sandy de Oliveira Gonçalves
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Campus Urutaí, GO, Brazil
| | - Thiarlen Marinho da Luz
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Campus Urutaí, GO, Brazil
| | - Abner Marcelino Silva
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Campus Urutaí, GO, Brazil
| | - Sindoval Silva de Souza
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Campus Urutaí, GO, Brazil
| | - Mateus Flores Montalvão
- Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, MG, Brazil
| | | | | | | | - Sengodan Karthi
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Monomania Sundaranar University, Alwarkurichi 627 412, India
| | - Guilherme Malafaia
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, MG, Brazil; Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, GO, Brazil.
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16
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Nascimento ÍF, Souza SSD, da Luz TM, Gomes LAS, Gonçalves SDO, Ahmed MAI, Guimarães ATB, Rodrigues ASDL, Malafaia G. Steel wools microfibers causes iron overload and induces biochemical changes in Gallus gallus domesticus chicks (Galliformes: Phasianidae). Chemosphere 2022; 293:133632. [PMID: 35033516 DOI: 10.1016/j.chemosphere.2022.133632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Steel wool (SW) has a broad-spectrum of applicability, particularly as abrasives, cleaning household utensils and surfaces in general. However, when present in the natural environment, they can be ingested by animals, such as birds, and may represent a risk to the survival of individuals. Accordingly, in this study, we attempted the hypothesis that the ingestion of SW microfibers (SWMs) by Gallus gallus domesticus chicks (model system used) alters growth/development, induces redox imbalance and cholinesterasic effect, as well as promotes iron overload in different organs. For this, the animals received SWMs twice (within a 24-h interval) in an amount corresponding to 12% of their total stomach volume. At the end of the experiment, we observed less weight gain and less head growth, increased production of hydrogen peroxide (in the brain, liver, crop, and gizzard), nitrite (liver, crop, proventriculus and gizzard), malondialdehyde (brain, liver, muscle, proventriculus, and gizzard), along with increased superoxide dismutase activity in the liver, muscle and crop of animals exposed to SWMs. Such results were associated with iron overload observed in different organs, especially in liver, crop, and gizzard. Furthermore, we evidenced an anti-cholinesterasic effect in birds that ingested the SWMs, marked by a reduction in the acetylcholinesterase activity (in brain). Thus, our study sheds light on the (eco)toxicological potential of SWMs in avifauna, conceding us to associate their ingestion (despite ephemeral and occasional) with damage to the health of individuals, requiring a greater attention spotted to disposal of these materials in ecosystems.
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Affiliation(s)
- Ítalo Freitas Nascimento
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Sindoval Silva de Souza
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Thiarlen Marinho da Luz
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Lux Attiê Santos Gomes
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Sandy de Oliveira Gonçalves
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | | | - Abraão Tiago Batista Guimarães
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, GO, Brazil; Programa de Pós-Graduação em Ecologia, Conservação e Biodiversidade, Universidade Federal de Uberlândia, MG, Brazil.
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17
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Abadia LEM, Gomes AR, Freitas ÍN, Guimarães ATB, Vaz BG, Ahmed MAI, Luz TMD, Rodrigues ASDL, Malafaia G. Hazardous effects of road-side soils on the redox and cholinesterasic homeostasis of mound-building termite (Cornitermes cumulans). Sci Total Environ 2022; 815:152841. [PMID: 34995615 DOI: 10.1016/j.scitotenv.2021.152841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/28/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
For our knowledge, the roadside soils end up being the deposit of various residues discarded by drivers or passengers, plus, that coming from the runoff of rainwater. Basically, we do not know the impacts that this pollution causes on animals which inhabit these environments. Thus, in this study, our objective was to evaluate how the presence of plastic microfibers (MPFs), organic compounds and heavy metals affect the redox and cholinesterase homeostasis of mound-building termite [Cornitermes cumulans (workers) adults]. As a result, we noticed that MPFs were present in all sampled areas, being higher in road area (RA). Regardless of the presence of these pollutants, animals sampled in the RA were those in which we observed greater production of reactive oxygen species (ROS), hydrogen peroxide (H2O2) and nitric oxide (NO) (via nitrite), whose higher activities of antioxidant enzymes, superoxide dismutase (SOD) and catalase (CAT), was not able to counterbalance the oxidative stress suggested by the evaluated biomarkers. Moreover, we observed increase in acetylcholinesterase (AChE) activity in these same animals, which suggests a cholinesterasic effect. Such alterations were positively correlated with the contamination of soil samples by Cd, Pb, Zn, Fe and Cu, as well as with the presence of the 11,10-guaiane-type sesquiterpenoid compound, identified only in the RA. Thus, our unique study reveals that the contamination of roadside soils constitutes an additional environmental stressor to populations of C. cumulans, which reinforces the need for greater attention and further investigation to be given to the pollution of these environments.
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Affiliation(s)
- Lucas Eduardo Moreira Abadia
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urataí Campus, GO, Brazil
| | - Alex Rodrigues Gomes
- Post-graduation Program in Agrarian Science, Goiano Federal Institute, Rio Verde Campus, GO, Brazil
| | - Ítalo Nascimento Freitas
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urataí Campus, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Post-graduation Program in Biotechnology and Biodiversity, Goiano Federal Institution, Federal University of Goiás, GO, Brazil
| | | | | | - Thiarlen Marinho da Luz
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urataí Campus, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urataí Campus, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urataí Campus, GO, Brazil; Post-graduation Program in Biotechnology and Biodiversity, Goiano Federal Institution, Federal University of Goiás, GO, Brazil; Post-graduation Program in Ecology and Conservation of Natural Resources, Federal University of Uberlândia, MG, Brazil.
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18
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Mendonça-Gomes JM, Charlie-Silva I, Guimarães ATB, Estrela FN, Calmon MF, Miceli RN, Sanches PRS, Bittar C, Rahal P, Cilli EM, Ahmed MAI, Vogel CFA, Malafaia G. Shedding light on toxicity of SARS-CoV-2 peptides in aquatic biota: A study involving neotropical mosquito larvae (Diptera: Culicidae). Environ Pollut 2021; 289:117818. [PMID: 34333265 PMCID: PMC8291650 DOI: 10.1016/j.envpol.2021.117818] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/21/2021] [Accepted: 07/19/2021] [Indexed: 05/19/2023]
Abstract
Knowledge about how the COVID-19 pandemic can affect aquatic wildlife is still extremely limited, and no effect of SARS-CoV-2 or its structural constituents on invertebrate models has been reported so far. Thus, we investigated the presence of the 2019-new coronavirus in different urban wastewater samples and, later, evaluated the behavioral and biochemical effects of the exposure of Culex quinquefasciatus larvae to two SARS-CoV-2 spike protein peptides (PSPD-2002 and PSPD-2003) synthesized in our laboratory. Initially, our results show the contamination of wastewater by the new coronavirus, via RT-qPCR on the viral N1 gene. On the other hand, our study shows that short-term exposure (48 h) to a low concentration (40 μg/L) of the synthesized peptides induced changes in the locomotor and the olfactory-driven behavior of the C. quinquefascitus larvae, which were associated with increased production of ROS and AChE activity (cholinesterase effect). To our knowledge, this is the first study that reports the indirect effects of the COVID-19 pandemic on the larval phase of a freshwater invertebrate species. The results raise concerns at the ecological level where the observed biological effects may lead to drastic consequences.
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Affiliation(s)
| | - Ives Charlie-Silva
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo; São Paulo, SP, Brazil
| | | | - Fernanda Neves Estrela
- Programa de Pós-Graduação Em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano; Urutaí, GO, Brazil
| | - Marilia Freitas Calmon
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho"; São José do Rio Preto, SP, Brazil
| | - Rafael Nava Miceli
- SeMAE - Serviço Municipal Autonômo de Água e Esgoto, São José do Rio Preto; São Paulo, SP, Brazil
| | - Paulo R S Sanches
- Instituto de Química, Universidade Estadual Paulista; Araraquara, SP, Brazil
| | - Cíntia Bittar
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho"; São José do Rio Preto, SP, Brazil
| | - Paula Rahal
- Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho"; São José do Rio Preto, SP, Brazil
| | - Eduardo M Cilli
- Instituto de Química, Universidade Estadual Paulista; Araraquara, SP, Brazil
| | | | - Christoph F A Vogel
- Department of Environmental Toxicology and Center for Health and the Environment, University of California, Davis, CA, 95616, USA
| | - Guilherme Malafaia
- Programa de Pós-Graduação Em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano; Urutaí, GO, Brazil; Programa de Pós-Graduação Em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Goiânia, GO, Brazil; Programa de Pós-Graduação Em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlância, Uberlândia, MG, Brazil.
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19
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Malafaia G, Nascimento ÍF, Estrela FN, Guimarães ATB, Ribeiro F, Luz TMD, Rodrigues ASDL. Green toxicology approach involving polylactic acid biomicroplastics and neotropical tadpoles: (Eco)toxicological safety or environmental hazard? Sci Total Environ 2021; 783:146994. [PMID: 33865141 DOI: 10.1016/j.scitotenv.2021.146994] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/03/2021] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
Different and alternative renewable-source materials, commonly called bioplastics, have been proposed due to the high production and consumption of petroleum-derived plastics and to their high toxicity in the biota. However, their toxicological safety has not yet been assessed in a comprehensive way; therefore, their effects on several animal groups remain completely unknown. Thus, we aimed at testing the following hypothesis: the exposure of Physalaemus cuvieri tadpoles to polylaic acid biomicroplastic (PLA BioMP) at environmentally relevant concentrations (760 and 15,020 μg/L) induces physiological changes in them. Based on the collected data, biopolymer uptake changed tadpoles' growth and development features, reduced their lipid reserves (it was inferred by decreased triglyceride levels), as well as increased reactive oxygen and nitric oxide species production after 14-day exposure. The proportional increase in total glutathione levels, and in superoxide dismutase and catalase activity, was not enough to counterbalance the production of reactive species. In addition, the two tested concentrations caused cholinesterase effect, which was marked by increased acetylcholinesterase and butyrylcholinesterase. This finding is indicative of the neurotoxic action of PLA BioMP. To the best of our knowledge, this is the first report on the harmful consequences of exposing amphibian representatives to the herein tested biopolymers. Therefore, this finding encourages further studies and contributes to demystify the idea that bioplastics are "harmless" to the aquatic biota in freshwater environments.
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Affiliation(s)
- Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil; Post-Graduate Program in Ecology and Conservation of Natural Resources, Federal University of Uberlândia, MG, Brazil.
| | | | - Fernanda Neves Estrela
- Biological Research Laboratory, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil
| | - Abraão Tiago Batista Guimarães
- Biological Research Laboratory, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil
| | - Fabianne Ribeiro
- Department of Biology & CESAM - Center for Environmental and Marine Studies, University of Aveiro, Portugal
| | | | - Aline Sueli de Lima Rodrigues
- Post-Graduate Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduate Program in Biodiversity and Biotechnology, Federal University of Goiás, Goiânia, Brazil
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20
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Nascimento ÍF, Guimarães ATB, Ribeiro F, Rodrigues ASDL, Estrela FN, Luz TMD, Malafaia G. Polyethylene glycol acute and sub-lethal toxicity in neotropical Physalaemus cuvieri tadpoles (Anura, Leptodactylidae). Environ Pollut 2021; 283:117054. [PMID: 33848902 DOI: 10.1016/j.envpol.2021.117054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/25/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
Although many polymers are known by their toxicity, we know nothing about the impact of polyethylene glycol (PEG) on anurofauna. Its presence in different products and disposal in aquatic environments turn assessments about its impact on amphibians an urgent matter. Accordingly, we tested the hypothesis that short-time exposure (72 h) of tadpoles belonging to the species Physalaemus cuvieri (Anura, Leptodactylidae) to PEG induces oxidative stress and neurotoxicity on them. We observed that polymer uptake in P. cuvieri occurred after exposure to 5 and 10 mg/L of PEG without inducing changes in their nitrite levels neither at the levels of substances reactive to thiobarbituric acid. However, hydrogen peroxide and reactive oxygen species production was higher in animals exposed to PEG, whose catalase and superoxide dismutase levels were not enough to counterbalance the production of these reactive species. Therefore, this finding suggests physiological changes altering REDOX homeostasis into oxidative stress. In addition, the increased activity of acetylcholinesterase and butyrylcholinesterase, and reduction in superficial neuromasts, confirmed PEG's neurotoxic potential. To the best of our knowledge, this is the first report on PEG's biological impact on a particular amphibian species. The study has broadened the understanding about ecotoxicological risks associated with water pollution by these polymers, as well as motivated further investigations on its impacts on amphibians' health and on the dynamics of their natural populations.
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Affiliation(s)
| | - Abraão Tiago Batista Guimarães
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Fabianne Ribeiro
- Department of Biology & CESAM - Center for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | | | - Fernanda Neves Estrela
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Thiarlen Marinho da Luz
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Graduate Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology and Natural Resources Conservation, Uberlândia, MG, Brazil.
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21
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Chagas TQ, Freitas ÍN, Montalvão MF, Nobrega RH, Machado MRF, Charlie-Silva I, Araújo APDC, Guimarães ATB, Alvarez TGDS, Malafaia G. Multiple endpoints of polylactic acid biomicroplastic toxicity in adult zebrafish (Danio rerio). Chemosphere 2021; 277:130279. [PMID: 34384178 DOI: 10.1016/j.chemosphere.2021.130279] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/27/2021] [Accepted: 03/07/2021] [Indexed: 06/13/2023]
Abstract
Although the toxicity of conventional microplastic types (i.e., petroleum derivatives) in different organisms is already known, knowledge about the effects of alternative biopolymers on aquatic vertebrates remains incipient. Thus, the aim of the present study is to test the hypothesis that the exposure of adult Danio rerio individuals to this pollutant for 30 days is enough to cause polylactic acid biomicroplastics (BioMPs of PLA) accumulation in their bodies, which leads to behavioral/neurotoxic, biochemical, and morphological changes. Based on our results, PLA BioMPs at concentrations of 2.5 and 5 mg/L accumulated in the liver, brain, gills and carcass of the assessed animals. However, such an accumulation was not able to cause locomotor damages or to trigger anxiety-like behavior in them. On the other hand, it was enough to cause behavioral changes (in shoal) predictive of co-specific social interaction and anti-predatory defensive response deficit likely related to cholinergic changes inferred by increased acetylcholinesterase activity and REDOX imbalance. This imbalance was featured by increased production of reactive species. We observed that the treatments have affected animals' pigmentation pattern. Therefore, our study highlights the toxicological potential of the herein assessed biopolymer, and this finding puts in check the innocuousness of this material, as well as expands our knowledge about how PLA BioMPs can affect the ichthyofauna in freshwater environments.
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Affiliation(s)
- Thales Quintão Chagas
- Post-Graduation Program in Cerrado Natural Resources Conservation, Goiano Federal University, Urutaí Campus, Urutaí, Brazil
| | | | - Mateus Flores Montalvão
- Post-Graduation Program in Ecology and Natural Resources Conservation, Federal University of Uberlândia, Uberlândia, Brazil
| | - Rafael Henrique Nobrega
- Reproductive and Molecular Biology Group, Morphology Department, São Paulo State University, Botucatu, Brazil
| | - Monica Rodrigues Ferreira Machado
- Department of Biological Sciences, Zebrafish Research and Reproduction Laboratory (LABFISH), Federal University of Jataí, Jataí, Brazil
| | - Ives Charlie-Silva
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Amanda Pereira da Costa Araújo
- Post-Graduation Program in Cerrado Natural Resources Conservation, Goiano Federal University, Urutaí Campus, Urutaí, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, Urutaí, Brazil
| | - Abraão Tiago Batista Guimarães
- Post-Graduation Program in Cerrado Natural Resources Conservation, Goiano Federal University, Urutaí Campus, Urutaí, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, Urutaí, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil
| | | | - Guilherme Malafaia
- Post-Graduation Program in Cerrado Natural Resources Conservation, Goiano Federal University, Urutaí Campus, Urutaí, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, Urutaí, Brazil; Post-Graduation Program in Ecology and Natural Resources Conservation, Federal University of Uberlândia, Uberlândia, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil.
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Guimarães ATB, Malafaia G. Multiple toxicity endpoints induced by carbon nanofibers in Amazon turtle juveniles: Outspreading warns about toxicological risks to reptiles. Sci Total Environ 2021; 779:146514. [PMID: 34030253 DOI: 10.1016/j.scitotenv.2021.146514] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
The toxicity of carbon-based nanomaterials (CNs) has been observed in different organisms; however, little is known about the impact of water polluted with carbon nanofibers (CNFs) on reptiles. Thus, the aim of the current study was to assess the chronic effects (7.5 months) of 1 and 10 mg/L of CNF on Podocnemis expansa (Amazon turtle) juveniles (4 months old) based on different biomarkers. Increased total organic carbon (TOC) concentrations observed in the liver and brain (which suggests CNF uptake) were closely correlated to changes in REDOX systems of turtles exposed to CNFs, mainly to higher nitrite, hydrogen peroxide and lipid peroxidation levels. Increased levels of antioxidants such as total glutathione, catalase and superoxide dismutase in the exposed animals were also observed. The uptake of CNFs and the observed biochemical changes were associated with higher frequency of erythrocyte nuclear abnormalities (assessed through micronucleus assays), as well as with both damage in erythrocyte DNA (assessed through comet assays) and higher apoptosis and necrosis rates in erythrocytes of exposed turtles. Cerebral and hepatic acetylcholinesterase (AChE) increased in turtles exposed to CNFs, and this finding suggested the neurotoxic effect of these nanomaterials. Data in the current study reinforced the toxic potential of CNFs and evidenced the biochemical, mutagenic, genotoxic, cytotoxic, and neurotoxic effects of CNFs on P. expansa.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Post-Graduation Program in Biotechnology and Biodiversity, Goiano Federal Institute and Federal University of Goiás, GO, Brazil; Biological Research Laboratory, Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urataí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Biotechnology and Biodiversity, Goiano Federal Institute and Federal University of Goiás, GO, Brazil; Biological Research Laboratory, Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urataí Campus, GO, Brazil; Post-Graduate Program in Ecology and Conservation of Natural Resources, Federal University of Uberlândia, MG, Brazil.
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23
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Estrela FN, Guimarães ATB, Araújo APDC, Silva FG, Luz TMD, Silva AM, Pereira PS, Malafaia G. Toxicity of polystyrene nanoplastics and zinc oxide to mice. Chemosphere 2021; 271:129476. [PMID: 33434826 DOI: 10.1016/j.chemosphere.2020.129476] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/21/2020] [Accepted: 12/27/2020] [Indexed: 05/04/2023]
Abstract
The toxicity of zinc oxide (ZnO NPs) and polystyrene nanoplastics (PS NaPs) has been tested in different animal models; however, knowledge about their impact on mice remains incipient. The aim of the current study is to evaluate the effects of these nanomaterials on Swiss mice after their individual exposure to a binary combination of them. The goal was to investigate whether short exposure (three days) to an environmentally relevant dose (14.6 ng/kg, i.p.) of these pollutants would have neurotoxic, biochemical and genotoxic effects on the modelss. Data in the current study have shown that the individual exposure of these animals has led to cognitive impairment based on the object recognition test, although the exposure experiment did not cause locomotor and anxiogenic or anxiolitic-like behavioral changes in them. This outcome was associated with increased nitric oxide levels, thiobarbituric acid reactive species, reduction in acetylcholinesterase activity and with the accumulation of nanomaterials in their brains. Results recorded for the assessed parameters did not differ between the control group and the groups exposed to the binary combination of pollutants. However, both the individual and the combined exposures caused erythrocyte DNA damages associated with hypercholesterolemic and hypertriglyceridemic conditions due to the presence of nanomaterials. Based on the results, the toxicological potential of ZnO NPs and PS NaPs in the models was confirmed and it encouraged further in-depth investigations about factors explaining the lack of additive or synergistic effect caused by the combined exposure to the assessed pollutants.
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Affiliation(s)
- Fernanda Neves Estrela
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | | | - Fabiano Guimarães Silva
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Thiarlen Marinho da Luz
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil
| | - Abner Marcelino Silva
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil
| | - Paulo Sergio Pereira
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil.
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Guimarães ATB, Charlie-Silva I, Malafaia G. Toxic effects of naturally-aged microplastics on zebrafish juveniles: A more realistic approach to plastic pollution in freshwater ecosystems. J Hazard Mater 2021; 407:124833. [PMID: 33352420 DOI: 10.1016/j.jhazmat.2020.124833] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/02/2020] [Accepted: 12/09/2020] [Indexed: 05/26/2023]
Abstract
We aim at evaluating the toxicity of naturally-aged polystyrene microplastics (MPs) in Danio rerio at intermediate development stage. Animal models were stactically exposed to 4 × 104 and 4 × 106 microparticles/m3 for five days - this concentration is environmentally relevant. We evaluated MP's impact on animals' nutritional status and REDOX balance, as well as its potential neuro- and cytotoxic action on them. Initially, MPs did not induce any change in total carbohydrates, triglycerides and total cholesterol levels. MP accumulation was associated with oxidative stress induction, which was inferred by the nitrite and thiobarbituric acid reactive substances levels. Furthermore, we observed that such stress was not counterbalanced by increase in the assessed enzymatic (total glutathione, catalase and superoxide dismutase) and non-enzymatic (total thiols, reduced glutathione and DPPH radical scavenging activity) antioxidants. The association between high acetylcholinesterase activity and numerical changes in neuroblasts distributed on animals' body surface confirmed MP's neurotoxic potential. MP's ability to induce apoptosis and necrosis processes in animals' erythrocytes suggested its cytotoxic action; therefore, the present study is pioneer in providing insight on how MPs can affect young freshwater fish at environmental concentrations. It is essential knowing the magnitude of these pollutants' impact on the ichthyofauna.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Post-graduation Program in Biotechnology and Biodiversity, Goiano Federal Institution and Federal University of Goiás, Goiás, Brazil; Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urata Campus, Goiás, Brazil
| | - Ives Charlie-Silva
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Goiás, Brazil
| | - Guilherme Malafaia
- Post-graduation Program in Biotechnology and Biodiversity, Goiano Federal Institution and Federal University of Goiás, Goiás, Brazil; Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urata Campus, Goiás, Brazil.
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25
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Guimarães ATB, Estrela FN, Rodrigues ASDL, Nóbrega RH, Charlie-Silva I, Malafaia G. Can carbon nanofibers affect anurofauna? Study involving neotropical Physalaemus cuvieri (Fitzinger, 1826) tadpoles. Aquat Toxicol 2021; 233:105795. [PMID: 33677260 DOI: 10.1016/j.aquatox.2021.105795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
Although carbon nanotubes' (CNTs) toxicity in different experimental systems (in vivo and in vitro) is known, little is known about the toxic effects of carbon nanofibers (CNFs) on aquatic vertebrates. We herein investigated the potential impact of CNFs (1 and 10 mg/L) by using Physalaemus cuvieri tadpoles as experimental model. CNFs were able to induce nutritional deficit in animals after 48-h exposure to them, and this finding was inferred by reductions observed in body concentrations of total soluble carbohydrates, total proteins, and triglycerides. The increased production of hydrogen peroxide, reactive oxygen species and thiobarbituric acid reactive substances in tadpoles exposed to CNFs has suggested REDOX homeostasis change into oxidative stress. This process was correlated to the largest number of apoptotic and necrotic cells in the blood of these animals. On the other hand, the increased superoxide dismutase and catalase activity has suggested that the antioxidant system of animals exposed to CNFs was not enough to maintain REDOX balance. In addition, CNFs induced increase in acetylcholinesterase and butyrylcholinesterase activity, as well as changes in the number of neuromasts evaluated on body surface (which is indicative of the neurotoxic effect of nanomaterials on the assessed model system). To the best of our knowledge, this is the first report on the impact of CNFs on amphibians; therefore, it broadened our understanding about ecotoxicological risks associated with their dispersion in freshwater ecosystems and possible contribution to the decline in the populations of anurofauna species.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, Brazil
| | - Fernanda Neves Estrela
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, Brazil
| | | | - Rafael Henrique Nóbrega
- Reproductive and Molecular Biology Group, Morphology Department, São Paulo State University, Botucatu, Brazil
| | - Ives Charlie-Silva
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Urutaí, Brazil; Post-Graduation Program in Cerrado Natural Resources Conservation, Goiano Federal University - Urutaí Campus, Urutaí, Brazil; Post-Graduation Program in Ecology and Natural Resources Conservation, Federal University of Uberlândia, Uberlândia, Brazil.
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Montalvão MF, Guimarães ATB, Rodrigues ASDL, Malafaia G. Carbon nanofibers are bioaccumulated in Aphylla williamsoni (Odonata) larvae and cause REDOX imbalance and changes of acetylcholinesterase activity. Sci Total Environ 2021; 756:143991. [PMID: 33302068 DOI: 10.1016/j.scitotenv.2020.143991] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/11/2020] [Accepted: 11/15/2020] [Indexed: 06/12/2023]
Abstract
Carbon-based materials have been considered very promising for the technological industry due to their unique physical and chemical properties, namely: ability to reduce production costs and to improve the efficiency of several products. However, there is little information on what is the level of exposure that leads to adverse effects and what kind of effects is expected in aquatic biota. Thus, the aim of the present study was to evaluate the toxicity of carbon nanofibers (CNFs) in dragonfly larvae (Aphylla williamsoni) based on predictive oxidative-stress biomarkers, antioxidant activity reduction and neurotoxicity. After ephemeral models' exposure to CNFs (48 h; at 500 μg/L), data have shown that these pollutants did not change larvae's nutritional status given the concentration of total soluble carbohydrates, total proteins and triglycerides in them. However, the levels of both nitric oxide and substances reactive to thiobarbituric acid (lipid peroxidation indicators) have increased and the antioxidant activity based on total thiol levels and on 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity (%) has reduced, and it suggests REDOX imbalance induction by CNFs. In addition, larvae exposed to these pollutants showed significant acetylcholinesterase activity reduction in comparison to the control group. Thus, the present study has brought further knowledge about how carbon-based materials can affect benthic macroinvertebrates and emphasized their ecotoxicological potential in freshwater environments.
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Affiliation(s)
- Mateus Flores Montalvão
- Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil; Laboratório de Pesquisas Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano, Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Laboratório de Pesquisas Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Ecologia e Conservação de Recursos Naturais, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil; Laboratório de Pesquisas Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano, Urutaí, GO, Brazil; Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Goiânia, GO, Brazil.
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27
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de Oliveira JPJ, Estrela FN, Rodrigues ASDL, Guimarães ATB, Rocha TL, Malafaia G. Behavioral and biochemical consequences of Danio rerio larvae exposure to polylactic acid bioplastic. J Hazard Mater 2021; 404:124152. [PMID: 33068943 DOI: 10.1016/j.jhazmat.2020.124152] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/24/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
The literature has largely shown the toxicity of petroleum-based PLA biomicroplastics (PLABioMPs) and encouraged the production of alternative materials to replace their use, such as biopolymers. However, knowledge concerning the effects of biopolymers on aquatic organisms remains under development. The hypothesis that the acute exposure (five days) to polylactic acid (PLA) biopolymers may lead to behavioral and biochemical changes and to their accumulation in Danio rerio larvae was tested. Based on the results, PLA biomicroplastics (PLA BioMPs) at concentration of 3 and 9 mg/L decreased swimming distance and speed of larvae in the open field test. This outcome suggests effects on animals' locomotor and exploration activities. Larvae's longer immobility time and greater permanence in the peripheral zone of the apparatus is indicative of anxiety-like behavior caused by the exposure to PLA BioMPs. Zebrafish larvae accumulated PLA BioMPs and their acetylcholinesterase activity was inhibited by their presence, which reinforces the accumulative potential of biopolymers and their direct or indirect role as anxiogenic agents, even at sublethal concentrations. The decreased activity of acetylcholinesterase reinforces the neurotoxic action in groups exposed to PLA BioMPs. The current study has confirmed the initial hypothesis and is an insight about the toxicity of these biopolymers in D. rerio larvae, since it deepens the discussion about the environmental risk of these substances in freshwater ecosystems.
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Affiliation(s)
| | - Fernanda Neves Estrela
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | | | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, Goiás, Brazil; Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil.
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Estrela FN, Batista Guimarães AT, Silva FG, Marinho da Luz T, Silva AM, Pereira PS, Malafaia G. Effects of polystyrene nanoplastics on Ctenopharyngodon idella (grass carp) after individual and combined exposure with zinc oxide nanoparticles. J Hazard Mater 2021; 403:123879. [PMID: 33264950 DOI: 10.1016/j.jhazmat.2020.123879] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/18/2020] [Accepted: 08/31/2020] [Indexed: 06/12/2023]
Abstract
The toxicity of polystyrene nanoparticles (PS NPs) and ZnO nanoparticles (ZnO NPs), in combination is poorly known. Thus, the aim of the current study was to evaluate the effects of PS NPs (760 μg/L) on Ctenopharyngodon idella exposed to it, both in separate and in combination with ZnO NPs (760 μg/L), based on behavioral, biochemical and genotoxic biomarkers. Current data have indicated that PS NPs, for a short exposure period (3 days), both in separate and in combination with nanoparticles, have affected animals' response to the mirror test. On the other hand, all treatments have equally induced C. idella inactivity towards alarm substances and DNA damage. There was increased oxidative stress, mainly in groups exposed to PS NPs (in combination, or not, with nanoparticles); although increased, the evaluated antioxidant levels did not appear to be enough to inhibit the effects of treatment-induced production of free radicals. Together, these results are likely co-responsible for the observed changes. The current study did not observe antagonistic, synergistic or additive effect on animals exposed to the combination between PS NPs and ZnO NPs; however, this outcome should not discourage the performance of similar studies focused on assessing the (eco)toxicity of pollutant mixtures comprising nanomaterials.
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Affiliation(s)
- Fernanda Neves Estrela
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Fabiano Guimarães Silva
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Thiarlen Marinho da Luz
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil
| | - Abner Marcelino Silva
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil
| | - Paulo Sergio Pereira
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil.
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Guimarães ATB, Estrela FN, Rodrigues ASDL, Chagas TQ, Pereira PS, Silva FG, Malafaia G. Nanopolystyrene particles at environmentally relevant concentrations causes behavioral and biochemical changes in juvenile grass carp (Ctenopharyngodon idella). J Hazard Mater 2021; 403:123864. [PMID: 33264938 DOI: 10.1016/j.jhazmat.2020.123864] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/19/2020] [Accepted: 08/24/2020] [Indexed: 06/12/2023]
Abstract
The biometric, behavioral and biochemical toxicity of polystyrene nanoplastics (PS NPs) in aquatic freshwater vertebrates and in environmentally relevant concentrations remains poorly known. Thus, using different toxicity biomarkers we tested the hypothesis that the exposure of Ctenopharyngodon idella juveniles to small PS NPs concentrations (0.04 ng/L, 34 ng/L and 34 μg/L), for a short period-of-time, may affect their growth/development, individual and collective behavior, and biochemical parameters. Animals exposed to NPs did not show increased biometric parameters (i.e.: body biomass, total and standard length, peduncle height, head height and visceral somatic and hepatosomatic indices). Despite the lack of damage on the locomotor (open field test) and visual (visual stimulus test) abilities of the evaluated fish, the expected increase in locomotor activity during the vibratory stimulus test was not evident in animals exposed to NPs. Non-exposed animals were the only ones showing increased activity/locomotion time in the presence of the predatory stimulus during the individual anti-predatory response test. The behavior of animals directly confronted with a potential predator has evidenced the influence of NPs on shoals' aggregation and on the distance kept by individuals from the predatory stimulus. These changes were associated with PS NPs accumulation in animals' brains, oxidative stress and increased acetylcholinesterase activity (hepatic and cerebral). Therefore, the current study has confirmed the initial hypothesis and showed that, even at low concentrations, PS NPs can affect the health of C. idella individuals at early life stage.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano- Campus Urutaí, Urutaí, Brazil
| | - Fernanda Neves Estrela
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano- Campus Urutaí, Urutaí, Brazil
| | - Aline Sueli de Lima Rodrigues
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano- Campus Urutaí, Urutaí, Brazil
| | - Thales Quintão Chagas
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano- Campus Urutaí, Urutaí, Brazil
| | - Paulo Sérgio Pereira
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Fabiano Guimarães Silva
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano- Campus Urutaí, Urutaí, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano- Campus Urutaí, Urutaí, Brazil.
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Guimarães ATB, Estrela FN, Pereira PS, de Andrade Vieira JE, de Lima Rodrigues AS, Silva FG, Malafaia G. Toxicity of polystyrene nanoplastics in Ctenopharyngodon idella juveniles: A genotoxic, mutagenic and cytotoxic perspective. Sci Total Environ 2021; 752:141937. [PMID: 33207528 DOI: 10.1016/j.scitotenv.2020.141937] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/20/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
The increased contamination of surface water with plastic waste is proportional to the increased consumption of products that use them as raw material. However, the impact of these residues on aquatic biota remains limited, mainly when it comes to nanoplastics (NPs). Thus, the aim of the current study is to test the hypothesis that the exposure of Ctenopharyngodon idella juveniles to polystyrene nanoplastics (PS NPs) at low concentrations (0.04 ng/L, 34 ng/L and 34 μg/L), for 20 days, leads to DNA damage and has mutagenic and cytotoxic effects on their erythrocytes. Comet assay enabled observing that DNA damage (inferred from the greater tail length, DNA percentage in the tail and Olive tail moment) induced by PS NPs has increased as the pollutant concentrations have increased, as well as that the formation of micronuclei and other nuclear abnormalities was equitable in animals exposed to this pollutant. On the other hand, there were significant changes in erythrocyte shape and size, oxidative stress generation (NO levels, lipid peroxidation, hydrogen peroxide), antioxidant system inhibition (mediated by total hepatic glutathione) and PS NPs accumulation in the liver and brain of animals exposed to higher concentrations of it. Therefore, the current study has confirmed the initial hypothesis and enhanced the knowledge about the genotoxic, mutagenic and cytotoxic potential of PS NPs in freshwater fish at early developmental stage, relating these effects to biochemical changes and significant accumulation of these nanomaterials. Besides, it is a warning about the (eco) toxicological risk represented by these nanopollutants in aquatic environments. CAPSULE: Polystyrene nanoplastics are capable of inducing DNA damage, mutagenic and cytotoxicity changes in fish.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil
| | - Fernanda Neves Estrela
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil
| | - Paulo Sergio Pereira
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | | | | | - Fabiano Guimarães Silva
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia, Brazil; Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, Urutaí, Brazil.
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Guimarães ATB, de Lima Rodrigues AS, Pereira PS, Silva FG, Malafaia G. Toxicity of polystyrene nanoplastics in dragonfly larvae: An insight on how these pollutants can affect bentonic macroinvertebrates. Sci Total Environ 2021; 752:141936. [PMID: 32889289 DOI: 10.1016/j.scitotenv.2020.141936] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 08/20/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
Although nanoplastics (NPs) are known to be toxic to several groups of animals, the effects of such a toxicity on freshwater benthic macroinvertebrate communities remain unknown. Thus, the aim of the current study is to test the hypothesis that polystyrene nanoplastics (PS NPs) (34 μg/L - 48 h of exposure) lead to biochemical damage in Aphylla williamsoni larvae. Data have evidenced high bioaccumulation factor in the analyzed individuals; this finding indicates that, similar to sediments, water is also part of aquatic systems and favors PS NPs retention in dragonfly larvae. Despite the lack of evidence about the interference of these pollutants in the nutritional status of the analyzed animals, their bioaccumulation was associated with REDOX imbalance featured by concomitant increase in the number of evaluated oxidative stress biomarkers (nitric oxide and lipid peroxidation) and antioxidants (antioxidant activity against the DPPH radical and the superoxide dismutase enzyme). On the other hand, the reduced acetylcholinesterase activity observed in larvae exposed to PS NPs has suggested the neurotoxic effect of these pollutants, with potential impact on their nerve and neuromuscular functions. Therefore, the current study is pioneer in showing that PS NPs can affect the health of the investigated larvae, even at small concentrations, for short exposure-time; this outcome reinforces the ecotoxicological risk of these pollutants for freshwater benthic macroinvertebrates.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil; Post-graduation Program in Biotechnology and Biodiversity, Goiano Federal Institution and Federal University of Goiás, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil
| | - Paulo Sérgio Pereira
- Post-graduation Program in Biotechnology and Biodiversity, Goiano Federal Institution and Federal University of Goiás, GO, Brazil
| | - Fabiano Guimarães Silva
- Post-graduation Program in Biotechnology and Biodiversity, Goiano Federal Institution and Federal University of Goiás, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil; Post-graduation Program in Biotechnology and Biodiversity, Goiano Federal Institution and Federal University of Goiás, GO, Brazil.
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Lima VS, Guimarães ATB, da Costa Araújo AP, Estrela FN, da Silva IC, de Melo NFS, Fraceto LF, Malafaia G. Depression, anxiety-like behavior, and memory impairment in mice exposed to chitosan-coated zein nanoparticles. Environ Sci Pollut Res Int 2019; 26:10641-10650. [PMID: 30771127 DOI: 10.1007/s11356-019-04536-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 02/07/2019] [Indexed: 06/09/2023]
Abstract
The advent of biotechnology provided the synthesis of nanoproducts with diverse applications in the field of medicine, agriculture, food, among others. However, the toxicity of many nanoparticles (NP) currently used, which can penetrate natural systems and impact organisms, is not known. Thus, in this study, we evaluated whether the short exposure (5 days) to low concentrations of chitosan-coated zein nanoparticles (ZNP-CS) (0.2 ng/kg, 40 ng/kg, and 400.00 ng/kg) was capable of causing behavioral alterations compatible with cognitive deficit, as well as anxiety and depression-like behavior in Swiss mice. However, we observed an anxiogenic effect in the animals exposed to the highest ZNP-CS concentration (400.00 ng/kg), without locomotor alterations suggestive of sedation or hyperactivity in the elevated plus maze (EPM) test. We also observed that the ZNP-CS caused depressive-like behavior, indicated by the longer immobile time in the tail suspension test and the animals exposed to ZNP-CS presented deficit in recognition of the new object, not related to locomotor alteration in this test. To the best of our knowledge, this is the first report of the neurotoxicity of ZNP in a mammal animal model, contributing to the biological safety assessment of these nanocomposites.
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Affiliation(s)
- Vinícius Silva Lima
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal Goiano-Urutaí Campus, Urutai, GO, Brazil
| | | | - Amanda Pereira da Costa Araújo
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal Goiano-Urutaí Campus, Urutai, GO, Brazil
| | - Fernanda Neves Estrela
- Post-graduation Program in Biotechnology and Biodiversity, Universidade Federal de Goiás, Goiania, GO, Brazil
| | | | | | - Leonardo Fernandes Fraceto
- Institute of Science and Technology of Sorocaba, São Paulo State University (UNESP), Sorocaba, SP, Brazil
| | - Guilherme Malafaia
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal Goiano-Urutaí Campus, Urutai, GO, Brazil.
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil.
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Guimarães ATB, de Oliveira Ferreira R, de Souza JM, da Costa Estrela D, Talvani A, Souza DMS, Rocha TL, Malafaia G. Evaluating the reproductive toxicology of tannery effluent in male SWISS mice. Sci Total Environ 2019; 648:1440-1452. [PMID: 30340289 DOI: 10.1016/j.scitotenv.2018.08.253] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 08/19/2018] [Accepted: 08/19/2018] [Indexed: 06/08/2023]
Abstract
The transformation of skin in-natura into leather in tannery industries generates large volumes of organic matter that attract small mammals. i.e., rodents living close to these facilities. Animals foraging in the backyards of such industries get exposed to the effluent produced by them; however, attention has not been given to the impacts of such exposure on the reproductive biology of these animals. Thus, our study assessed whether the direct exposure to this effluent for periods longer than 90 days leads to reproductive loss in male Swiss mice. We assessed animals' sexual behavior at the end of the experimental period and analyzed their testicular histology, as well as semen quality and volume, besides measuring pro-inflammatory markers and assessing the reproductive performance of the exposed animals. Based on the herein collected data, mice exposed to the gross effluent collected in the backyard of a tannery industry, as well as to the effluent diluted in 5% of water, presented behavioral and histological changes in the testes, disorganized germinal cells in the seminiferous tubules and inflammatory process in intertubular spaces. The inflammatory process resulted from increased proinflammatory cytokine (IFN-gamma and CCL2) concentrations in the testes, fact that explained the larger number of sperm abnormalities and the reduced number of produced sperms. These factors, along with the previously reported changes, may have led to the low reproductive performance of animals exposed to the tested pollutant, which was assessed through the lethal dominant test. This pioneering article addressed the reproductive impact caused by the direct exposure of small rodents to tannery effluents. The research helped better understanding how these pollutants can influence natural ecosystems.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | - Raíssa de Oliveira Ferreira
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | - Joyce Moreira de Souza
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | | | - André Talvani
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, GO, Brazil
| | - Débora Maria Soares Souza
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, GO, Brazil
| | - Thiago Lopes Rocha
- Inflammation Immunobiology Lab, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil.
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de Oliveira Ferreira R, Guimarães ATB, Rocha TL, de Lima Rodrigues AS, de Oliveira Mendes B, Mesak C, Malafaia G. The potential reproductive toxicity of tannery effluent to the estrous cycle and ovarian follicular dynamics of female Swiss mice. Environ Sci Pollut Res Int 2018; 25:36355-36367. [PMID: 30368706 DOI: 10.1007/s11356-018-3527-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 10/17/2018] [Indexed: 06/08/2023]
Abstract
Although the toxic effects of tannery effluent (TE) on tanning-industry workers have been reported in many studies, its effects on females' reproductive system are unknown. We aimed at evaluating the effects of direct contact with TE on the "emotional" status, estrous cycle (during 15 consecutive exposure days), and ovarian follicular dynamics of female Swiss mice at the end of the experiment to broaden the knowledge about the toxicity of this pollutant. The herein adopted exposure protocol simulated tanning-industry workers' exposure to TE. The test animals were subjected to 45 exposure days, for 1 h a day, 5 days a week (from Monday to Friday). Based on the collected data, female mice exposed to TE recorded high anxiety index in the elevated plus maze test, although we did not observe changes in their estrous cycle. The smaller total and specific number of ovarian follicles (types 1 to 6) and the higher frequency of degenerating follicles (atresic) in female mice exposed to TE marked the folliculogenesis reduction in them. Therefore, our study was the first to provide evidences that the exposure to TE can cause reproduction issues in female mice, as well as the first experimental insight about the impact of unhealthy work activities in tanning industries on women's reproductive system.
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Affiliation(s)
- Raíssa de Oliveira Ferreira
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | | | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Aline Sueli de Lima Rodrigues
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Bruna de Oliveira Mendes
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Carlos Mesak
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil.
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP: 75790-000, Brazil.
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de Souza JM, Rabelo LM, de Faria DBG, Guimarães ATB, da Silva WAM, Rocha TL, Estrela FN, Chagas TQ, de Oliveira Mendes B, Malafaia G. The intake of water containing a mix of pollutants at environmentally relevant concentrations leads to defensive response deficit in male C57Bl/6J mice. Sci Total Environ 2018; 628-629:186-197. [PMID: 29432930 DOI: 10.1016/j.scitotenv.2018.02.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 02/03/2018] [Accepted: 02/03/2018] [Indexed: 06/08/2023]
Abstract
Previous studies have individually confirmed the toxic effects from different pollutants on mammals. However, effects resulting from the exposure of these animals to multi-pollutant mixes have not been studied so far. Thus, the aim of the current study is to assess the effect from the chronic exposure (105days) of C57Bl/6J mice to a mix of pollutants on their response to potential predators. In order to do so, the following groups were formed: "control", "Mix 1× [compounds from 15 pollutants identified in surface waters at environmentally relevant concentration (ERC)]", "Mix 10×" and "Mix 25×" (concentrations 10 and 25 times higher than the ERC). From the 100th experimental day on, the animals were subjected to tests in order to investigate whether they showed locomotor, visual, olfactory and auditory changes, since these abilities are essential to their anti-predatory behavior. Next, the animals' behavior towards potential predators (Felis catus and Pantherophis guttatus) was assessed. The herein collected data did not show defensive response from any of the experimental groups to the predatory stimulus provided by P. guttatus. However, the control animals, only, presented anti-predatory behavior when F. catus was introduced in the apparatus, fact that suggests defensive response deficit resulting from the treatments. Thus, the current study is pioneer in showing that the chronic intake of water containing a mix of pollutants (even at low concentrations) leads to behavioral disorders able to affect the survival and population dynamics of mammalian species at ecological level.
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Affiliation(s)
- Joyce Moreira de Souza
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | | | - Denise Braga Gomes de Faria
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Wellington Alves Mizael da Silva
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | | | | | - Bruna de Oliveira Mendes
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil.
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Rabelo LM, Guimarães ATB, de Souza JM, da Silva WAM, de Oliveira Mendes B, de Oliveira Ferreira R, de Lima Rodrigues AS, Malafaia G. Correction to: Histological liver chances in Swiss mice caused by tannery effluent. Environ Sci Pollut Res Int 2018; 25:16267-16268. [PMID: 29589236 DOI: 10.1007/s11356-018-1805-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
There is a problem in the original publication of this paper (Figure 2 Graphs are in Portuguese). Shown in this paper is the correct version.
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Affiliation(s)
- Letícia Martins Rabelo
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano-Campus Urutaí, Urutaí, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP:75790-000, Brazil
| | - Joyce Moreira de Souza
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP:75790-000, Brazil
| | - Wellington Alves Mizael da Silva
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP:75790-000, Brazil
| | | | | | - Aline Sueli de Lima Rodrigues
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP:75790-000, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP:75790-000, Brazil.
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás-Campus Samambaia, Goiânia, GO, Brazil.
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Estrela DDC, Carvalho CGD, Guimarães ATB. DÉFICIT NUTRICIONAL EM RATOS WISTAR. MSJ 2018. [DOI: 10.33837/msj.v1i4.602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
A desnutrição causa diversos tipos de alterações, síndromes e doenças, afetando de forma generalizada ou não, vários parâmetros do indivíduo. Diante disso, o presente estudo objetivou avaliar os efeitos da restrição alimentar, em curto prazo, sobre parâmetros físicos, bioquímicos, hematológicos e histológicos em ratos Wistar. Para isso, fêmeas adultas com aproximadamente 90 dias de idade foram submetidas ao processo de restrição alimentar utilizando uma dieta contendo 6% de proteína. Já os animais do grupo controle foram aqueles alimentados com dieta comercial padrão contendo 19% de proteína. Após o estabelecimento da desnutrição, indicada pela diferença entre as massas corpóreas dos animais estudados, estes foram submetidos à eutanásia, tendo sido avaliada a massa absoluta e relativa do fígado, baço, coração, pâncreas, cérebro, rins e pulmões e glândulas suprarrenais, parâmetros bioquímicos e hematológicos, assim como a histologia do baço, fígado e rins desses animais. Os animais do grupo desnutrição apresentaram diminuição da concentração de leucócitos, triglicérides e lipoproteínas de muito baixa densidade (VLDL) e maior massa relativa do fígado, com presença de alterações histopatológicas incipientes quando comparados com os respectivos controles. Estes dados sugerem que a restrição alimentar, em curto prazo, é capaz de induzir o quadro de desnutrição e ocasionar sinais de alterações no fígado, mas não ocasiona alterações bioquímicas e hematológicas generalizada.
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Souza JMD, Almeida SFD, Mendes BDO, Silva WAMD, Guimarães ATB, Ferreira RDO, Estrela DDC, Malafaia G. ESTUDO PRELIMINAR DE PARADIGMA DE ESTRESSE PREDATÓRIO PARA INDUÇÃO DE ANSIEDADE EM CAMUNDONGOS SWISS. MSJ 2018. [DOI: 10.33837/msj.v1i4.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
In this study we modified the predatory stress paradigms to determine if a simple and new predatory stress paradigm could produce anxiety-like behaviour in female Swiss mice, exposed to male Wistar rat. We hypothesized that the stressor employed would induce anxiety in the short-term in mice. In addition, we assessed the behavioral effects of the paradigm as much as 12 days after the conclusion of the stress exposure and demonstrate lasting effects of the predatory stress exposure on behavior. Collectively, the data presented here demonstrate that the rat-on-mouse predatory stress paradigm causes changes in behavior of female Swiss mice following a 12 day exposure to the chronic stress paradigm.
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De Oliveira RF, Guimarães ATB, Silva BCE, Silva WAMD, Mendes BDO, Rodrigues ASDL, Almeida SFD, Souza JMD, Rabelo LM, Estrela DDC, Malafaia G. Análise de Toxidade Aguda e determinação da dose letal mediana (DL50) de efluentes de curtume em camundongos Swiss. MSJ 2018. [DOI: 10.33837/msj.v1i3.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
O presente estudo objetivou avaliar a toxicidade aguda e determinar a dose letal mediana (DL50) de efluentes de curtume, administrados pela via oral em fêmeas de camundongos da linhagem Swiss. Para isso, estabeleceu-se os seguintes grupos experimentais: grupo controle, o qual recebeu apenas água filtrada; grupo 20% de efluente de curtume diluído em água filtrada, 40%, 60%, 80% e 100%. Adotou-se procedimentos adaptados da Agência Nacional de Vigilância Sanitária para avaliação da toxicidade aguda. Observou-se que as concentrações de 100% e 80% de efluente de curtume promoveram a morte de todos os animais dos respectivos grupos. Por outro lado, a DL50 correspondeu à concentração de 60% de efluente de curtume diluído em água. Para as demais doses (40% e 20%) não foi evidenciada a morte de nenhum dos animais. Acredita-se que este estudo possa subsidiar trabalhos futuros que venham investigar diferentes efeitos da exposição oral de camundongos a efluentes de curtume, possibilitando a elucidação dos mecanismos que relacionam os efeitos à esses xenobióticos.
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Costa e Silva B, Cristina Socorro de Lemos D, Francisca Sá B, Moreira de Souza J, Pessoa Pinto de Menezes I, Alves Mizael da Silva W, Tiago Batista Guimarães A, Malafaia G. Determinação de doses letais de efluente de curtume em camundongos C57Bl/6J. MSJ 2018. [DOI: 10.33837/msj.v1i2.83] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
A determinação de doses letais de substâncias é um importante parâmetro em estudos toxicológicos. Até então, não há na literatura conhecimento de estudos que tenham definido as doses letais de efluentes de curtume em modelos experimentais mamíferos. Assim, objetivou-se com este estudo determinar doses letais de efluentes de curtume em camundongos C57Bl/6J, considerando completa ausência de estudos dessa natureza em modelos experimentais mamíferos. Para isso, camundongos receberam, intraperitonealmente, por 5 dias consecutivos, injeções de concentrações de 100%, 75%, 50% e 25% de efluentes de curtume, diluídas em água (para as fêmeas); e 44%, 38%, 32% e 26% de efluentes de curtume (para os machos). Verificou-se que a concentração de 25% de efluentes de curtume administradas intraperitonealmente mostra-se inócuas a fêmeas de camundongos C57Bl/6J e que doses de até 44% de efluentes de curtume, não evidenciam sinais de toxicidade aguda em camundongos machos da mesma linhagem. Este estudo tem caráter incipiente e, portanto, sugere-se a realização de novas investigações, envolvendo diferentes vias de administração do resíduo, diferentes tipos de efluentes de curtume (brutos ou tratados) e variadas espécies de animais, considerando que xenobióticos podem ter diferentes mecanismos de ação em diferentes espécies e linhagens de roedores avaliadas.
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Lemos DCSD, Silva BCE, Souza JMD, Silva WAMD, Estrela DDC, Oliveira RFD, Guimarães ATB, Malafaia G. Toxicidade aguda em camundongos BALB/c expostos a efluentes de curtume. MSJ 2018. [DOI: 10.33837/msj.v1i3.138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
O processamento da pele bovina constitui uma das atividades industriais que geram resíduos altamente tóxicos, por conterem elevadas concentrações de metais pesados, como cromo, cádmio, níquel e chumbo. Sabe-se que o descarte inadequado desses efluentes no ambiente pode incorrer em consequências danosas aos organismos de magnitude complexa e pouco conhecida. Nesse contexto, objetivou-se com o presente estudo determinar doses potencialmente letais de efluentes de curtume, por meio da indução de toxicidade aguda em camundongos da linhagem BALB/c, acompanhada de uma avaliação de parâmetros físicos (massa corpórea e massa relativa de distintos órgãos), bioquímicos e comportamentais. 24 fêmeas de camundongos BALB/c foram distribuídas em grupos que receberam, pela via intraperitoneal, duas doses fracionadas de efluentes de curtume (wet blue), diluídos em água, que totalizaram as seguintes doses: 11,25%, 22,5% e 45%. O grupo controle recebeu apenas soro fisiológico. Os encontrados neste estudo não apontam para qualquer alteração física na massa corpórea dos animais, tampouco nas massas relativas do fígado, baço, timo e rins. Além disso, nenhuma mudança comportamental pelo screening hipocrático foi observada nos animais, com exceção de um animal do grupo 45% que foi a óbito no 3º dia de avaliação, o que corresponde para essa dose uma concentração de efluente de curtume que mata 16,66% dos animais, não sendo possível calcular a DL50. Em relação aos parâmetros bioquímicos, foi observada uma diminuição nas concentrações séricas da enzima fosfatase alcalina nos animais que receberam efluentes de curtume, em relação ao grupo controle. Logo, conclui-se que efluentes de curtume do tipo wet blue, administrados intraperitonealmente, em fêmeas de camundongos BALB/c não causam sinais evidentes de toxicidade aguda nos animais. A DL16,16 foi obtida apenas para a maior dose de efluente pré-estabelecida (45%).
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da Silva WAM, Guimarães ATB, Montalvão MF, Mendes BDO, Rodrigues ASDL, Malafaia G. The chronic exposure to abamectin causes spatial memory deficit and depressive behavior in mice. Chemosphere 2018; 194:523-533. [PMID: 29241126 DOI: 10.1016/j.chemosphere.2017.12.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 11/29/2017] [Accepted: 12/05/2017] [Indexed: 06/07/2023]
Abstract
It is known that abamectin (ABA), which is a component belonging to the group of avermectins, has been broadly used as biopesticide. Although its effect on non-target aquatic organisms is known, knowledge about its impacts on terrestrial animals such as mammals remains incipient. Thus, we aim at investigating the effects (phycical and neural-behavioral) from the chronic exposure (90 days) to ABA (1/10 of LD50) on Swiss and C57Bl/6J mice from both sexes. Accordingly, at the end of the experimental period the animals were subjected to the following tests: Novel Object Recognition Test (NORT), Morris Water Maze (MWM), Tail Suspension Test (TST), and Forced Swimming Test (FST). We showed that the new-object recognition indexes in the NORT test sessions did not differ between experimental groups; however, animals exposed to ABA, regardless of sex or strain, recorded longer latency time to find the quadrant holding the platform in the MWM training sessions, as well as stayed shorter in this quadrant. Such results highlight the negative effect of the pesticide on the animals' spatial memory evocation, without evident influence from their genetic status and sex. With regard to TST, we also did not observe differences in immobility time between groups; however, Swiss mice (males and females) presented depressive behavior in the FST, and apparent influence from their genetic status in their responses during the test. Therefore, our study confirms the neurotoxic potential of ABA and is pioneer in reporting memory deficit and depressive behavior in mammal experimental models.
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Affiliation(s)
- Wellington Alves Mizael da Silva
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado and Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado and Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Mateus Flores Montalvão
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado and Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Bruna de Oliveira Mendes
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado and Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado and Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Departamento de Ciências Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado and Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Departamento de Ciências Biológicas, Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil.
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de Souza JM, Mendes BDO, Guimarães ATB, Rodrigues ASDL, Chagas TQ, Rocha TL, Malafaia G. Zinc oxide nanoparticles in predicted environmentally relevant concentrations leading to behavioral impairments in male swiss mice. Sci Total Environ 2018; 613-614:653-662. [PMID: 28938207 DOI: 10.1016/j.scitotenv.2017.09.051] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/19/2017] [Accepted: 09/06/2017] [Indexed: 06/07/2023]
Abstract
Although the potential neurotoxic effects from the exposure to zinc oxide nanoparticles (ZnO NPs) on humans and on experimental models have been reported in previous studies, the effects from the exposure to environmentally relevant concentrations of them remain unclear. Thus, the aim of the present study is to investigate the effects from the exposure to environmentally relevant concentrations of ZnO NPs on the behavior of male Swiss mice. The animals were daily exposed to environmentally relevant concentrations of ZnO NPs (5.625×10-5mgkg-1) at toxic level (300mgkg-1) through intraperitoneal injection for five days; a control group was set for comparison purposes. Positive control groups (clonazepam and fluoxetine) and a baseline group were included in the experimental design to help analyzing the behavioral tests (open field, elevated plus maze and forced swim tests). Although we did not observe any behavioral change in the animals subjected to the elevated plus maze and forced swim tests, our data evidence the anxiogenic behavior of animals exposed to the two herein tested ZnO NPs concentrations in the open field test. The animals stayed in the central part of the apparatus and presented lower locomotion ratio in the central quadrants/total of locomotion during this test. It indicates that the anxiogenic behavior was induced by ZnO NP exposure, because it leads to Zn accumulation in the brain. Thus, the current study is the first to demonstrate that the predicted environmentally relevant ZnO NPs concentration induces behavioral changes in mammalian experimental models. Our results corroborate previous studies that have indicated the biological risks related to the water surface contamination by metal-based nanomaterials.
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Affiliation(s)
- Joyce Moreira de Souza
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campos, GO, Brazil
| | - Bruna de Oliveira Mendes
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campos, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campos, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Biological Research Laboratory, Goiano Federal Institute - Urutaí Campos, GO, Brazil
| | - Thales Quintão Chagas
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campos, GO, Brazil
| | - Thiago Lopes Rocha
- Institute of Tropical Pathology and Public Health, Federal University of Goiás, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Institute of Tropical Pathology and Public Health, Federal University of Goiás, GO, Brazil; Biological Sciences Department, Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Post-Graduation Program in Animal Biodiversity, Federal University of Goiás - Samambaia Campus, Goiânia, GO, Brazil.
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Rabelo LM, Guimarães ATB, de Souza JM, da Silva WAM, de Oliveira Mendes B, de Oliveira Ferreira R, de Lima Rodrigues AS, Malafaia G. Histological liver chances in Swiss mice caused by tannery effluent. Environ Sci Pollut Res Int 2018; 25:1943-1949. [PMID: 29103125 DOI: 10.1007/s11356-017-0647-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 10/31/2017] [Indexed: 06/07/2023]
Abstract
Although tannery effluents are known for being highly toxic to organisms, reports about the effects of the intake of these xenobiotics on experimental mammal models are recent. Studies about the damages the chronic intake of these effluents can cause in the liver of outbred mice remain an unexplored field. Thus, the aim of the present study is to assess (histological) the hepatic condition of Swiss mice (outbred strain) chronically exposed to the intake of different raw tannery effluent concentrations diluted in water for 150 days. Accordingly, the mice (males and females) were divided in the following groups: control group-animals treated with drinking water, only; and groups 5 and 10%-treated with raw tannery effluent diluted in water. After exposure, the animals were subjected to euthanasia for liver fragment sample collection and histological analysis, respectively. Moderate hydropic degeneration was observed in the centrilobular regions of the liver of mice exposed to 5 and 10% tannery effluent, as well as greater amounts of hepatocytes presenting karyomegaly and necrotic hepatocytes, and a smaller amount of Kuffer cells in the liver of mice exposed to the xenobiotic. Finally, animals exposed to 10% tannery effluent showed mild hyperplasia of the bile ducts in the portal areas and fibroblast proliferation around the bile ducts, thus suggesting a fibrous process. Except for the frequency of hepatocytes presenting karyomegaly (lower in females), the herein observed hepatic changes were similar in male and female Swiss mice. Accordingly, the present data support the hypothesis that the chronic intake of tannery effluent by outbred mice (Swiss) causes damages in the liver, a fact that broadens the knowledge about the toxic potential of this pollutant, which goes beyond that of C57Bl/6J male mice (inbred strain).
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Affiliation(s)
- Letícia Martins Rabelo
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano-Campus Urutaí, Urutaí, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP: 75790-000, Brazil
| | - Joyce Moreira de Souza
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP: 75790-000, Brazil
| | - Wellington Alves Mizael da Silva
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP: 75790-000, Brazil
| | | | | | - Aline Sueli de Lima Rodrigues
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP: 75790-000, Brazil
| | - Guilherme Malafaia
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, CEP: 75790-000, Brazil.
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás-Campus Samambaia, Goiânia, GO, Brazil.
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Silva WAMD, Mendes BDO, Guimarães ATB, Rabelo LM, Ferreira RDO, Silva BCE, Souza JMD, Menezes IPPD, Rodrigues ASDL, Malafaia G. Exposição dérmica à efluente de curtume causa alterações neurocomportamentais em camundongos Swiss e C57Bl/6J. MSJ 2017. [DOI: 10.33837/msj.v1i8.482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Estrela FN, Rabelo LM, Guimarães ATB, Souza JMD, Silva WAMD, Mendes BDO, Ferreira RDO, Rodrigues ASDL, Malafaia G. Histologia hepática de camundongos Swiss submetidos cronicamente a ingestão de água contendo efluente de curtume. MSJ 2017. [DOI: 10.33837/msj.v1i8.499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Não há.
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Guimarães ATB, Ferreira RDO, Rocha TL, Rodrigues ASDL, Malafaia G. Toxicologia reprodutiva de machos de camundongos Swiss expostos à efluente de curtume. MSJ 2017. [DOI: 10.33837/msj.v1i8.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Souza JMD, Mendes BDO, Faria DBG, Guimarães ATB, Silva WAMD, Estrela FN, Rabelo LM, Chagas TQ, Malafaia G. Déficit na resposta ao predador em camundongos C57Bl/6J expostos cronicamente à ingestão de água contendo uma mistura complexa de poluentes. MSJ 2017. [DOI: 10.33837/msj.v1i8.478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Quintão TC, Rabelo LM, Alvarez TGDS, Guimarães ATB, Rodrigues ASDL, Cardoso LDS, Ferreira RDO, Malafaia G. Comportamento pré-copulatório e de motivação sexual de machos de camundongos Swiss expostos à efluente de curtume. MSJ 2017. [DOI: 10.33837/msj.v1i8.510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Não há.
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Montalvão MF, de Souza JM, Guimarães ATB, de Menezes IPP, Castro ALDS, Rodrigues ASDL, Malafaia G. The genotoxicity and cytotoxicity of tannery effluent in bullfrog (Lithobates catesbeianus). Chemosphere 2017; 183:491-502. [PMID: 28570892 DOI: 10.1016/j.chemosphere.2017.05.080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 05/02/2017] [Accepted: 05/13/2017] [Indexed: 06/07/2023]
Abstract
Some of the most polluting activities occur in bovine skin processing. Tannery generates effluents containing high concentrations of heavy metals and organic compounds. The phases composing the leather production process generate a large volume of tannery effluents that are often discarded in aquatic environments without any previous treatment. However, the effect these xenobiotics have on adult representatives belonging to the class Amphibia remains unknown. Thus, the aim of the present study is to assess the geno- and cytotoxic effects of tannery effluent on adult male bullfrogs (Lithobates castesbeianus) exposed to it. Accordingly, the animals were divided into the following groups: negative control (tannery effluent-free water), positive control (cyclophosphamide), and effluent (water added with 5% tannery effluent). The animals were euthanized for blood collection, and erythrocyte analyses were conducted after 35 and 90 days of exposure. The micronuclei (MN) frequency and the frequency of other nuclear abnormalities in each of the animals in the experimental groups were assessed in 2000 erythrocytes. According to the present results, the exposure to tannery effluents increased MN frequency as well as other nuclear abnormalities (i.e., lobed nuclei, binucleated cell, kidney-shaped nuclei, notched nuclei, and apoptotic cell) in the erythrocytes of animals in the effluent group and in the positive control group after 35 and 90 exposure days. Thus, the current study corroborated the hypothesis that the tannery effluent has aneugenic and clastogenic potential in adult male bullfrogs (L. castesbeianus). The present study is the first to report such effect.
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Affiliation(s)
| | - Joyce Moreira de Souza
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado and Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado and Laboratório de Pesquisas Biológicas, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Ivandilson Pessoa Pinto de Menezes
- Departamento de Ciências Biológicas, Laboratório de Genética e Biologia Molecular and Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - André Luis da Silva Castro
- Departamento de Ciências Biológicas, Laboratório de Zoologia and Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Departamento de Ciências Biológicas, Laboratório de Pesquisas Biológicas and Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Departamento de Ciências Biológicas, Laboratório de Pesquisas Biológicas and Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal Goiano - Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás - Campus Samambaia, GO, Brazil.
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