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Gnocchi KG, Passos LS, Pereira TM, Coppo GC, de Souza LA, Teixeira BC, Chippari-Gomes AR. Biochemical changes and bioaccumulation of manganese in Astyanax lacustris (Teleostei: Characidae). ECOTOXICOLOGY (LONDON, ENGLAND) 2024:10.1007/s10646-024-02765-9. [PMID: 38809386 DOI: 10.1007/s10646-024-02765-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/22/2024] [Indexed: 05/30/2024]
Abstract
Major tailings dam failures have occurred recently around the world and resulted in severe environmental impacts, such as metal contamination. Manganese is a metal highly associated with mining activities, largely detected in mining dam collapses. This metal is considered necessary for different organisms, but it can be toxic and cause oxidative stress and genetic damage in fishes. In this study, we investigated the toxic effects of manganese on Astyanax lacustris, by exposing the fish individually to different concentrations of this metal (2.11, 5.00, and 10.43 mg/L) for 96 h. To assess the effects of manganese, we used biochemical biomarkers (glutathione S-transferase, catalase, and acetylcholinesterase enzyme activity) and the manganese bioaccumulation in different tissues (liver and gills). The obtained data showed that only at concentrations of 5.00 mg/L and 10.43 mg/L the activity of glutathione S-transferase differed significantly. Additionally, the acetylcholinesterase activity in the brain tissue was inhibited. The highest level of manganese bioaccumulation was observed in the liver and branchial tissue. Overall, we concluded that high concentrations of manganese may cause physiological changes in Astyanax lacustris.
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Affiliation(s)
- Karla Giavarini Gnocchi
- Laboratory of Applied Ichthyology, Vila Velha University, Comissário José Dantas de Melo, 21 Boa Vista, Vila Velha, ES, 29102-770, Brazil
| | - Larissa Souza Passos
- Laboratory of Applied Ichthyology, Vila Velha University, Comissário José Dantas de Melo, 21 Boa Vista, Vila Velha, ES, 29102-770, Brazil
| | - Tatiana Miura Pereira
- Laboratory of Applied Ichthyology, Vila Velha University, Comissário José Dantas de Melo, 21 Boa Vista, Vila Velha, ES, 29102-770, Brazil
| | - Gabriel Carvalho Coppo
- Laboratory of Applied Ichthyology, Vila Velha University, Comissário José Dantas de Melo, 21 Boa Vista, Vila Velha, ES, 29102-770, Brazil.
| | - Letícia Alves de Souza
- Laboratory of Applied Ichthyology, Vila Velha University, Comissário José Dantas de Melo, 21 Boa Vista, Vila Velha, ES, 29102-770, Brazil
| | - Barbara Chisté Teixeira
- Laboratory of Applied Ichthyology, Vila Velha University, Comissário José Dantas de Melo, 21 Boa Vista, Vila Velha, ES, 29102-770, Brazil
| | - Adriana Regina Chippari-Gomes
- Laboratory of Applied Ichthyology, Vila Velha University, Comissário José Dantas de Melo, 21 Boa Vista, Vila Velha, ES, 29102-770, Brazil
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Godoi FGA, Dias MA, Guerreiro ADS, Branco GS, Montagner CC, Moreira RG, Lo Nostro FL. Physiological responses on the reproductive, metabolism and stress endpoints of Astyanax lacustris females (Teleostei: Characiformes) after diclofenac and ibuprofen exposure. Comp Biochem Physiol C Toxicol Pharmacol 2024; 278:109846. [PMID: 38316244 DOI: 10.1016/j.cbpc.2024.109846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/17/2024] [Accepted: 01/25/2024] [Indexed: 02/07/2024]
Abstract
Diclofenac (DCF) and ibuprofen (IBU) are pharmaceutical compounds frequently detected in aquatic compartments worldwide. Several hazard effects including developmental abnormalities and redox balance impairment have been elucidated in aquatic species, but multiple endocrine evaluations are scarce. Therefore, the present study aimed to assess the disruptive physiological effects and toxicity of DCF and IBU isolated and combined, using females of the native freshwater teleost Astyanax lacustris. In regards to NSAIDs bioavailability, the results showed absence of degradation of IBU and DCF after 7 days of exposure. IBU LC50 for A. lacustris was 137 mgL-1 and females exposed to IBU isolated increased thyroxine (T4) concentration at 24 h and decreased after 96 h; DCF exposure decreased triiodothyronine (T3) concentration at 96 h. Circulating levels of 17β-estradiol (E2), cortisol (F) and testosterone (T) were not affected by any treatment. HPG and HPI axis genes fshβ, pomc and vtg were upregulated after 24 h of IBU exposure, and dio2 was downregulated in DCF fish exposed group after 96 h compared to the mixture. Protein concentration was reduced in muscle and increased in the liver by DCF and mixtures exposures at 24 h; while liver lipids were increased in the mixture groups after 96 h. The study point out the capacity of NSAIDs to affect endocrine endpoints in A. lacustris females and induce changes in energetic substrate content after acute exposure to isolated and mixed NSAIDs treatments. Lastly, the present investigation brings new insights into the toxicity and endocrine disruptive activity of NSAIDs in Latin America teleost species and the aquatic environment.
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Affiliation(s)
- Filipe G A Godoi
- Departamento de Fisiología, Instituto de Biociências, Universidade de São Paulo, 05508-090 São Paulo, Brazil.
| | - Mariana A Dias
- Laboratório de Química Ambiental, Departamento de Química Analítica, Instituto de Química - Universidad de Campinas, 13086-970 Campinas, Brazil
| | - Amanda da S Guerreiro
- Departamento de Fisiología, Instituto de Biociências, Universidade de São Paulo, 05508-090 São Paulo, Brazil
| | - Giovana S Branco
- Departamento de Fisiología, Instituto de Biociências, Universidade de São Paulo, 05508-090 São Paulo, Brazil
| | - Cassiana C Montagner
- Laboratório de Química Ambiental, Departamento de Química Analítica, Instituto de Química - Universidad de Campinas, 13086-970 Campinas, Brazil
| | - Renata G Moreira
- Departamento de Fisiología, Instituto de Biociências, Universidade de São Paulo, 05508-090 São Paulo, Brazil
| | - Fabiana L Lo Nostro
- Laboratorio de Ecotoxicología Acuática, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires & IBBEA, CONICET-UBA, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
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