Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation.
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080546 http://dx.doi.org/10.14202/vetworld.2017.1008-1019 |
Resumo: | The aim of this work was to evaluate the sensitivity of Pacu fingerlings (Piaractus mesopotamicus) by measuring the effects of median lethal concentration (LC50) of atrazine (ATZ - 28.58 mg/L) after acute exposure (up to 96 h). The fish were exposed to the LC50 of ATZ for 96 h (28.58 mg/L) in a static system. During the experiment, the fingerlings were randomly distributed in four glass tanks (50 L) containing dechlorinated water. Four glass tanks were for the control group, and four were for the ATZ-exposed group (n=4 per glass tank), given a total number of 16 animals tested per group. The genotoxicity was evaluated by micronucleus (MN) test in erythrocytes from peripheral blood. Qualitative and semi-quantitative histopathological analyses, and also ultrastructural study, were applied in liver and kidney samples. Finally, the content of heat shock protein (Hsp70) in the liver was evaluated by the western blotting method. The morphological alterations in the liver, which was associated with increased expression of Hsp70, included nuclear and cytoplasmic vacuolization, cytoplasmic hyaline inclusions, and necrosis. The kidney presented edema and tubular cell degeneration with cytoplasmic hyaline inclusion. The semi-quantitative histopathological analyses indicated that the liver was more sensitive than kidney to ATZ-induced damage. Ultrastructural analysis showed that ATZ caused membrane alterations in several organelles and increased the number of lysosomes in hepatocytes and kidney proximal tubular cells. Nevertheless, no significant difference was observed in MN frequency in erythrocytes comparing treated and control groups. These results indicated that ATZ-induced damage to the kidney and liver function, ATZ at the concentration tested did not induce a significant difference in MN frequency in Pacu erythrocytes comparing treated and control groups, and also that Pacu fingerlings may be a good bioindicator for testing freshwater contamination. |
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Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation.Brazilian ichthyofaunaKidney lesionsLiver lesionsMicronucleus testPacuHerbicidaToxidezPoluição da águaPiaractus mesopotamicusWater pollutionAtrazineOxidative stressNephrotoxicityHepatotoxicityThe aim of this work was to evaluate the sensitivity of Pacu fingerlings (Piaractus mesopotamicus) by measuring the effects of median lethal concentration (LC50) of atrazine (ATZ - 28.58 mg/L) after acute exposure (up to 96 h). The fish were exposed to the LC50 of ATZ for 96 h (28.58 mg/L) in a static system. During the experiment, the fingerlings were randomly distributed in four glass tanks (50 L) containing dechlorinated water. Four glass tanks were for the control group, and four were for the ATZ-exposed group (n=4 per glass tank), given a total number of 16 animals tested per group. The genotoxicity was evaluated by micronucleus (MN) test in erythrocytes from peripheral blood. Qualitative and semi-quantitative histopathological analyses, and also ultrastructural study, were applied in liver and kidney samples. Finally, the content of heat shock protein (Hsp70) in the liver was evaluated by the western blotting method. The morphological alterations in the liver, which was associated with increased expression of Hsp70, included nuclear and cytoplasmic vacuolization, cytoplasmic hyaline inclusions, and necrosis. The kidney presented edema and tubular cell degeneration with cytoplasmic hyaline inclusion. The semi-quantitative histopathological analyses indicated that the liver was more sensitive than kidney to ATZ-induced damage. Ultrastructural analysis showed that ATZ caused membrane alterations in several organelles and increased the number of lysosomes in hepatocytes and kidney proximal tubular cells. Nevertheless, no significant difference was observed in MN frequency in erythrocytes comparing treated and control groups. These results indicated that ATZ-induced damage to the kidney and liver function, ATZ at the concentration tested did not induce a significant difference in MN frequency in Pacu erythrocytes comparing treated and control groups, and also that Pacu fingerlings may be a good bioindicator for testing freshwater contamination.PAULA PEREIRA DE PAIVA, CPQBA-UNICAMP; MARIANA CRUZ DELCORSO, CPQBA-UNICAMP; VALQUIRIA APARECIDA MATHEUS, CPQBA-UNICAMP; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; SARAH ARANA, CPQBA-UNICAMP.PAIVA, P. P. deDELCORSO, M. C.MATHEUS, V. A.QUEIROZ, S. C. do N. deCOLLARES-BUZATO, C. B.ARANA, S.2017-11-23T23:19:07Z2017-11-23T23:19:07Z2017-11-2320172017-11-23T23:19:07Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleVeterinary World, Wankaner, v. 10, n. 9, p. 1008-1019, 2017.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080546http://dx.doi.org/10.14202/vetworld.2017.1008-1019enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-11-23T23:19:14Zoai:www.alice.cnptia.embrapa.br:doc/1080546Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-11-23T23:19:14falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-11-23T23:19:14Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation. |
title |
Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation. |
spellingShingle |
Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation. PAIVA, P. P. de Brazilian ichthyofauna Kidney lesions Liver lesions Micronucleus test Pacu Herbicida Toxidez Poluição da água Piaractus mesopotamicus Water pollution Atrazine Oxidative stress Nephrotoxicity Hepatotoxicity |
title_short |
Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation. |
title_full |
Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation. |
title_fullStr |
Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation. |
title_full_unstemmed |
Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation. |
title_sort |
Acute toxicity of commercial atrazine in Piaractus mesopotamicus: histopathological, ultrastructural, molecular, and genotoxic evaluation. |
author |
PAIVA, P. P. de |
author_facet |
PAIVA, P. P. de DELCORSO, M. C. MATHEUS, V. A. QUEIROZ, S. C. do N. de COLLARES-BUZATO, C. B. ARANA, S. |
author_role |
author |
author2 |
DELCORSO, M. C. MATHEUS, V. A. QUEIROZ, S. C. do N. de COLLARES-BUZATO, C. B. ARANA, S. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
PAULA PEREIRA DE PAIVA, CPQBA-UNICAMP; MARIANA CRUZ DELCORSO, CPQBA-UNICAMP; VALQUIRIA APARECIDA MATHEUS, CPQBA-UNICAMP; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; SARAH ARANA, CPQBA-UNICAMP. |
dc.contributor.author.fl_str_mv |
PAIVA, P. P. de DELCORSO, M. C. MATHEUS, V. A. QUEIROZ, S. C. do N. de COLLARES-BUZATO, C. B. ARANA, S. |
dc.subject.por.fl_str_mv |
Brazilian ichthyofauna Kidney lesions Liver lesions Micronucleus test Pacu Herbicida Toxidez Poluição da água Piaractus mesopotamicus Water pollution Atrazine Oxidative stress Nephrotoxicity Hepatotoxicity |
topic |
Brazilian ichthyofauna Kidney lesions Liver lesions Micronucleus test Pacu Herbicida Toxidez Poluição da água Piaractus mesopotamicus Water pollution Atrazine Oxidative stress Nephrotoxicity Hepatotoxicity |
description |
The aim of this work was to evaluate the sensitivity of Pacu fingerlings (Piaractus mesopotamicus) by measuring the effects of median lethal concentration (LC50) of atrazine (ATZ - 28.58 mg/L) after acute exposure (up to 96 h). The fish were exposed to the LC50 of ATZ for 96 h (28.58 mg/L) in a static system. During the experiment, the fingerlings were randomly distributed in four glass tanks (50 L) containing dechlorinated water. Four glass tanks were for the control group, and four were for the ATZ-exposed group (n=4 per glass tank), given a total number of 16 animals tested per group. The genotoxicity was evaluated by micronucleus (MN) test in erythrocytes from peripheral blood. Qualitative and semi-quantitative histopathological analyses, and also ultrastructural study, were applied in liver and kidney samples. Finally, the content of heat shock protein (Hsp70) in the liver was evaluated by the western blotting method. The morphological alterations in the liver, which was associated with increased expression of Hsp70, included nuclear and cytoplasmic vacuolization, cytoplasmic hyaline inclusions, and necrosis. The kidney presented edema and tubular cell degeneration with cytoplasmic hyaline inclusion. The semi-quantitative histopathological analyses indicated that the liver was more sensitive than kidney to ATZ-induced damage. Ultrastructural analysis showed that ATZ caused membrane alterations in several organelles and increased the number of lysosomes in hepatocytes and kidney proximal tubular cells. Nevertheless, no significant difference was observed in MN frequency in erythrocytes comparing treated and control groups. These results indicated that ATZ-induced damage to the kidney and liver function, ATZ at the concentration tested did not induce a significant difference in MN frequency in Pacu erythrocytes comparing treated and control groups, and also that Pacu fingerlings may be a good bioindicator for testing freshwater contamination. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-23T23:19:07Z 2017-11-23T23:19:07Z 2017-11-23 2017 2017-11-23T23:19:07Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Veterinary World, Wankaner, v. 10, n. 9, p. 1008-1019, 2017. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080546 http://dx.doi.org/10.14202/vetworld.2017.1008-1019 |
identifier_str_mv |
Veterinary World, Wankaner, v. 10, n. 9, p. 1008-1019, 2017. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080546 http://dx.doi.org/10.14202/vetworld.2017.1008-1019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503445115305984 |