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Pessoa UHS, Santos FAD, Sousa IV, Catão CLDS, Torres ADS, Abrahim CMM, Malheiro A, Passos LNM, Martins-Filho OA, Costa AG. PREVALÊNCIA DO VÍRUS LINFOTRÓPICO DE CÉLULA T HUMANA TIPO 1 E 2 EM DOADORES DE SANGUE EM UM HEMOCENTRO DE REFERÊNCIA DO AMAZONAS. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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do Carmo TLL, Azevedo VC, de Siqueira PR, Galvão TD, Dos Santos FA, Dos Reis Martinez CB, Appoloni CR, Fernandes MN. Reactive oxygen species and other biochemical and morphological biomarkers in the gills and kidneys of the Neotropical freshwater fish, Prochilodus lineatus, exposed to titanium dioxide (TiO 2) nanoparticles. Environ Sci Pollut Res Int 2018; 25:22963-22976. [PMID: 29858996 DOI: 10.1007/s11356-018-2393-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 11/23/2017] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
This study investigated the action of titanium dioxide nanoparticles (TiO2-NPs), on the gills and kidneys of Neotropical freshwater fish, Prochilodus lineatus, with emphasis on reactive oxygen species (ROS) production, antioxidant responses, and morphological changes. Fish were exposed to 1, 5, 10, and 50 mg L-1 nominal TiO2-NPs suspended into water for 2 or 14 days. In gills, ROS decreased and glutathione (GSH) increased after 2 days, while ROS and GSH increased and superoxide dismutase activity decreased after 14 days. In kidneys, GSH and lipoperoxidation increased after 2 days and catalase activity decreased after 14 days. Common histopathologies in gills were epithelium hyperplasia, cellular hypertrophy, proliferation of mitochondria-rich cells (MRC), and lamellar stasis; in kidneys, there were cellular and nuclear hypertrophy, focal tubule degeneration, necrosis, and melanomacrophage (MM) proliferation. Although environmentally unlikely, high-dose exposures clarified biological effects of TiO2-NPs, such as ROS formation and MRC responses in the gills, which may impair ionic balance. It was also found that MM are likely responsible for eliminating NPs in the kidney. These findings will help to regulate TiO2-NP disposal, but longer-term studies are still needed.
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Affiliation(s)
- Talita Laurie Lustosa do Carmo
- Physiological Sciences Department, Federal University of São Carlos, Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil
| | - Vinicius Cavicchioli Azevedo
- Physiological Sciences Department, Federal University of São Carlos, Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil
| | - Priscila Rodrigues de Siqueira
- Physiological Sciences Department, Federal University of São Carlos, Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil
| | - Tiago Dutra Galvão
- Physics Department, State University of Londrina, Rodovia Celso Garcia Cid | Pr 445 Km 380, Londrina, PR, 86055-900, Brazil
| | - Fabrício Aparecido Dos Santos
- Physics Institute of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, SP, 13566-970, Brazil
| | - Cláudia Bueno Dos Reis Martinez
- Physiological Sciences Department, State University of Londrina, Rodovia Celso Garcia Cid | Pr 445 Km 380, Londrina, PR, 86055-990, Brazil
| | - Carlos Roberto Appoloni
- Physics Department, State University of Londrina, Rodovia Celso Garcia Cid | Pr 445 Km 380, Londrina, PR, 86055-900, Brazil
| | - Marisa Narciso Fernandes
- Physiological Sciences Department, Federal University of São Carlos, Rodovia Washington Luiz, km 235, São Carlos, SP, 13565-905, Brazil.
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