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Pinto-Vidal FA, Carvalho CDS, Abdalla FC, Ceschi-Bertoli L, Moraes Utsunomiya HS, Henrique da Silva R, Salla RF, Jones-Costa M. Metabolic, immunologic, and histopathologic responses on premetamorphic American bullfrog (Lithobates catesbeianus) following exposure to lithium and selenium. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 270:116086. [PMID: 33248831 DOI: 10.1016/j.envpol.2020.116086] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 06/12/2023]
Abstract
The presence of chemicals and the destruction of freshwater habitats have been addressed as one of the reasons for the decline in the amphibians' populations worldwide. Considering the threat that these animals have been suffering in tropical regions, the present study tested if the Brazilian legislation, concerning the permissive levels of lithium and selenium in water bodies and effluents, warrants the protection of aquatic life. To do so, we assessed the metabolic, immunologic, and histopathologic alterations in liver samples of American bullfrog (Lithobates catesbeianus), at the premetamorphic stage, through biomarkers indicative of general energetic status, i.e., glucose, lipid, and protein metabolism using biochemical and histochemical approaches. The immunologic responses were assessed by the quantification of melanomacrophage centres (MMCs); the histopathologic evaluation of the liver sections was also performed. The assay was carried out over 21 days with two periods of sampling (after 7 and 21 days) to assess the effects of exposure over time. The animals were exposed to the considered safe levels of lithium (2.5 mg L-1) and selenium (10 μg L-1), both, isolated and mixed. The exposed animals showed alterations in glucose and lipid metabolism throughout the experiment. The intense presence of MMCs and histopathological responses are compatible with hepatotoxicity. The toxicity expressed by the employed animal model indicates that the Brazilian environmental legislation for the protection of aquatic life needs to be updated. With this study, we intend to provide data for better environmental policies and bring attention to sublethal effects triggered by the presence of contaminants in the aquatic environment.
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Affiliation(s)
- Felipe Augusto Pinto-Vidal
- Laboratory of Physiology Conservation (LaFisC) - Federal University of São Carlos, Sorocaba, São Paulo, Brazil; RECETOX, Faculty of Science, Masaryk University, Kamenice 753/5, Pavilion A29, 625 00 Brno, Czech Republic; Postgraduate Program of Biotechnology and Environmental Monitoring (PPGBMA) - Federal University of São Carlos, Sorocaba, São Paulo, Brazil
| | - Cleoni Dos Santos Carvalho
- Laboratory of Biochemistry and Microbiology (LaBioM) - Federal University of São Carlos, Sorocaba, São Paulo, Brazil
| | - Fábio Camargo Abdalla
- Laboratory of Structural and Functional Biology (LaBEF) - Federal University of São Carlos, Sorocaba, São Paulo, Brazil
| | - Letícia Ceschi-Bertoli
- Laboratory of Structural and Functional Biology (LaBEF) - Federal University of São Carlos, Sorocaba, São Paulo, Brazil
| | | | | | - Raquel Fernanda Salla
- Laboratory of Natural History of Brazilian Amphibians (LaHNAB) - State University of Campinas, Campinas, São Paulo, Brazil
| | - Monica Jones-Costa
- Laboratory of Physiology Conservation (LaFisC) - Federal University of São Carlos, Sorocaba, São Paulo, Brazil.
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Ellwanger JH, Franke SIR, Bordin DL, Prá D, Henriques JAP. Biological functions of selenium and its potential influence on Parkinson's disease. AN ACAD BRAS CIENC 2016; 88:1655-1674. [PMID: 27556332 DOI: 10.1590/0001-3765201620150595] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 09/28/2015] [Indexed: 03/01/2023] Open
Abstract
Parkinson's disease is characterized by the death of dopaminergic neurons, mainly in the substantia nigra, and causes serious locomotor dysfunctions. It is likely that the oxidative damage to cellular biomolecules is among the leading causes of neurodegeneration that occurs in the disease. Selenium is an essential mineral for proper functioning of the brain, and mainly due to its antioxidant activity, it is possible to exert a special role in the prevention and in the nutritional management of Parkinson's disease. Currently, few researchers have investigated the effects of selenium on Parkinson´s disease. However, it is known that very high or very low body levels of selenium can (possibly) contribute to the pathogenesis of Parkinson's disease, because this imbalance results in increased levels of oxidative stress. Therefore, the aim of this work is to review and discuss studies that have addressed these topics and to finally associate the information obtained from them so that these data and associations serve as input to new research.
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Affiliation(s)
- Joel H Ellwanger
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil
| | - Silvia I R Franke
- Programa de Pós-Graduação em Promoção da Saúde, Universidade de Santa Cruz do Sul/UNISC, Bloco 42, sala 4206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil
| | - Diana L Bordin
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil
| | - Daniel Prá
- Programa de Pós-Graduação em Promoção da Saúde, Universidade de Santa Cruz do Sul/UNISC, Bloco 42, sala 4206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil.,Departamento de Biologia e Farmácia, Universidade de Santa Cruz do Sul/UNISC, Bloco 12, sala 1206, Av. Independência, 2293, Universitário, 96815-900 Santa Cruz do Sul, RS, Brasil
| | - João A P Henriques
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul/UFRGS, Campus do Vale, Prédio 43421, Av. Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brasil.,Instituto de Biotecnologia, Universidade de Caxias do Sul/UCS, Rua Francisco Getúlio Vargas, 1130, 95070-560 Caxias do Sul, RS, Brasil
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Puerto MD, Olivero R, Terevinto A, Saadoun A, Cabrera MC. Dietary Organic and Inorganic Selenium on Liver Glycogen and Lactate, pHu, Color and Drip Loss of Chicken <i>Pectoralis</i> and <i>Gastrocnemius</i> Muscles. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/ojas.2016.61008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bicer M, Akil M, Sivrikaya A, Kara E, Baltaci AK, Mogulkoc R. Effect of zinc supplementation on the distribution of various elements in the serum of diabetic rats subjected to an acute swimming exercise. J Physiol Biochem 2011; 67:511-7. [DOI: 10.1007/s13105-011-0096-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Accepted: 04/11/2011] [Indexed: 01/26/2023]
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