An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity

Autores
Lombardero, Lucas Rodrigo; Medici, Sandra Karina; Mendieta, Julieta Renee; Villagran, Diana Mariel; Pérez, Débora Jesabel; Menone, Mirta Lujan
Año de publicación
2023
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Chlorpyrifos (CPF) is a common organophosphate insecticide used for pest control in agriculture and nonagricultural settings, acting as an acetylcholinesterase (AChE) inhibitor. It is highly toxic to aquatic life and can persist in the environment (half- life: 81 days in surface water). The aim of the present study was to evaluate effects of oxidative stress and damage, neurotoxicity and genotoxicity in Jenynsia lineata exposed to environmentally relevant concentrations of CPF during 96 h. Five tanks (30 L) were set up, using females of J. lineata (n=6 per treatment; standard length: 4.31 ± 0.50 cm; total weight: 1.67 ± 0.51 gr), one as a control and four with CPF concentrations of 0.05, 0.5, 5, and 50 μg/L. Liver, gills, and brain were dissected and immediately frozen with liquid nitrogen and stored at -80°C until biomarkers analysis. The blood was extracted and smear were done and fixed with methanol for further analysis. During the course of the experiment, three individuals exposed at 50 ug/L and one exposed at 5 ug/L died at the first 24 hs indicating that this concentration is closed to the LC50. While the remaining three individuals exposed at 5o ug/L wereeuthanized because they looked moribund, and were used for measuring biomarkers. An increase in the activity of the enzymes catalase and glutathione-S-transferase in brain, and of superoxide dismutase in gills was observed at 0.05 μg/L (p<0.05). There were no significant differences in the activity of AChE between the control and the lowest concentration (0.05 μg/L) (p>0.05), while inhibition of AChE was observed at 0.5 μg/L (29.51%) and 5 μg/L (49.53%) (p<0.05). No significant differences were observed for micronuclei or other nuclear aberrations (p>0.05). At 50 μg/L, increased activity of CAT in liver and a 77.6% inhibition of AChE was observed (p<0.05). The results of this study demonstrate that environmentally concentrations of CPF can induce oxidative stress at concentrations lower than those at which AChE inhibition occurs. Although AChE is the target biomarker for organophosphates, it may not be as efficient early warning system as antioxidant enzymes, highlighting the approach of not always use the mode of action biomarkers. Taking into account that CPF values of the lethal concentration 50 (LC50) for other fish species are very high compared to the concentrations used in this experiment, next steps will include the evaluationof the LC50 in J. lineata.
Fil: Lombardero, Lucas Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Medici, Sandra Karina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina
Fil: Mendieta, Julieta Renee. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina
Fil: Villagran, Diana Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Pérez, Débora Jesabel. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Innovación Para la Producción Agropecuaria y El Desarrollo Sostenible. - Instituto Nacional de Tecnologia Agropecuaria. Centro Regional Buenos Aires Sur. Estacion Experimental Agropecuaria Balcarce. Instituto de Innovación Para la Producción Agropecuaria y El Desarrollo Sostenible.; Argentina
Fil: Menone, Mirta Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
SETAC Latin America 15th Biennial Meeting
Montevideo
Uruguay
Society of Environmental Toxicology and Chemistry
Materia
JENYNSIA LINEATA
CHLORPYRYFOS
SUBLETHAL EFFECTS
ENVIRONMENTAL RELEVANT CONCENTRATIONS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/272044

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network_name_str CONICET Digital (CONICET)
spelling An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and GenotoxicityLombardero, Lucas RodrigoMedici, Sandra KarinaMendieta, Julieta ReneeVillagran, Diana MarielPérez, Débora JesabelMenone, Mirta LujanJENYNSIA LINEATACHLORPYRYFOSSUBLETHAL EFFECTSENVIRONMENTAL RELEVANT CONCENTRATIONShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Chlorpyrifos (CPF) is a common organophosphate insecticide used for pest control in agriculture and nonagricultural settings, acting as an acetylcholinesterase (AChE) inhibitor. It is highly toxic to aquatic life and can persist in the environment (half- life: 81 days in surface water). The aim of the present study was to evaluate effects of oxidative stress and damage, neurotoxicity and genotoxicity in Jenynsia lineata exposed to environmentally relevant concentrations of CPF during 96 h. Five tanks (30 L) were set up, using females of J. lineata (n=6 per treatment; standard length: 4.31 ± 0.50 cm; total weight: 1.67 ± 0.51 gr), one as a control and four with CPF concentrations of 0.05, 0.5, 5, and 50 μg/L. Liver, gills, and brain were dissected and immediately frozen with liquid nitrogen and stored at -80°C until biomarkers analysis. The blood was extracted and smear were done and fixed with methanol for further analysis. During the course of the experiment, three individuals exposed at 50 ug/L and one exposed at 5 ug/L died at the first 24 hs indicating that this concentration is closed to the LC50. While the remaining three individuals exposed at 5o ug/L wereeuthanized because they looked moribund, and were used for measuring biomarkers. An increase in the activity of the enzymes catalase and glutathione-S-transferase in brain, and of superoxide dismutase in gills was observed at 0.05 μg/L (p<0.05). There were no significant differences in the activity of AChE between the control and the lowest concentration (0.05 μg/L) (p>0.05), while inhibition of AChE was observed at 0.5 μg/L (29.51%) and 5 μg/L (49.53%) (p<0.05). No significant differences were observed for micronuclei or other nuclear aberrations (p>0.05). At 50 μg/L, increased activity of CAT in liver and a 77.6% inhibition of AChE was observed (p<0.05). The results of this study demonstrate that environmentally concentrations of CPF can induce oxidative stress at concentrations lower than those at which AChE inhibition occurs. Although AChE is the target biomarker for organophosphates, it may not be as efficient early warning system as antioxidant enzymes, highlighting the approach of not always use the mode of action biomarkers. Taking into account that CPF values of the lethal concentration 50 (LC50) for other fish species are very high compared to the concentrations used in this experiment, next steps will include the evaluationof the LC50 in J. lineata.Fil: Lombardero, Lucas Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Medici, Sandra Karina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; ArgentinaFil: Mendieta, Julieta Renee. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; ArgentinaFil: Villagran, Diana Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Pérez, Débora Jesabel. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Innovación Para la Producción Agropecuaria y El Desarrollo Sostenible. - Instituto Nacional de Tecnologia Agropecuaria. Centro Regional Buenos Aires Sur. Estacion Experimental Agropecuaria Balcarce. Instituto de Innovación Para la Producción Agropecuaria y El Desarrollo Sostenible.; ArgentinaFil: Menone, Mirta Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaSETAC Latin America 15th Biennial MeetingMontevideoUruguaySociety of Environmental Toxicology and ChemistrySociety of Environmental Toxicology and Chemistry2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/272044An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity; SETAC Latin America 15th Biennial Meeting; Montevideo; Uruguay; 2023; 406-406CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/pmid/https://www.setac.org/discover-events/global-meetings/sla-15th-biennial-meeting.htmlInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:14Zoai:ri.conicet.gov.ar:11336/272044instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:47:14.403CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity
title An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity
spellingShingle An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity
Lombardero, Lucas Rodrigo
JENYNSIA LINEATA
CHLORPYRYFOS
SUBLETHAL EFFECTS
ENVIRONMENTAL RELEVANT CONCENTRATIONS
title_short An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity
title_full An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity
title_fullStr An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity
title_full_unstemmed An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity
title_sort An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity
dc.creator.none.fl_str_mv Lombardero, Lucas Rodrigo
Medici, Sandra Karina
Mendieta, Julieta Renee
Villagran, Diana Mariel
Pérez, Débora Jesabel
Menone, Mirta Lujan
author Lombardero, Lucas Rodrigo
author_facet Lombardero, Lucas Rodrigo
Medici, Sandra Karina
Mendieta, Julieta Renee
Villagran, Diana Mariel
Pérez, Débora Jesabel
Menone, Mirta Lujan
author_role author
author2 Medici, Sandra Karina
Mendieta, Julieta Renee
Villagran, Diana Mariel
Pérez, Débora Jesabel
Menone, Mirta Lujan
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv JENYNSIA LINEATA
CHLORPYRYFOS
SUBLETHAL EFFECTS
ENVIRONMENTAL RELEVANT CONCENTRATIONS
topic JENYNSIA LINEATA
CHLORPYRYFOS
SUBLETHAL EFFECTS
ENVIRONMENTAL RELEVANT CONCENTRATIONS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Chlorpyrifos (CPF) is a common organophosphate insecticide used for pest control in agriculture and nonagricultural settings, acting as an acetylcholinesterase (AChE) inhibitor. It is highly toxic to aquatic life and can persist in the environment (half- life: 81 days in surface water). The aim of the present study was to evaluate effects of oxidative stress and damage, neurotoxicity and genotoxicity in Jenynsia lineata exposed to environmentally relevant concentrations of CPF during 96 h. Five tanks (30 L) were set up, using females of J. lineata (n=6 per treatment; standard length: 4.31 ± 0.50 cm; total weight: 1.67 ± 0.51 gr), one as a control and four with CPF concentrations of 0.05, 0.5, 5, and 50 μg/L. Liver, gills, and brain were dissected and immediately frozen with liquid nitrogen and stored at -80°C until biomarkers analysis. The blood was extracted and smear were done and fixed with methanol for further analysis. During the course of the experiment, three individuals exposed at 50 ug/L and one exposed at 5 ug/L died at the first 24 hs indicating that this concentration is closed to the LC50. While the remaining three individuals exposed at 5o ug/L wereeuthanized because they looked moribund, and were used for measuring biomarkers. An increase in the activity of the enzymes catalase and glutathione-S-transferase in brain, and of superoxide dismutase in gills was observed at 0.05 μg/L (p<0.05). There were no significant differences in the activity of AChE between the control and the lowest concentration (0.05 μg/L) (p>0.05), while inhibition of AChE was observed at 0.5 μg/L (29.51%) and 5 μg/L (49.53%) (p<0.05). No significant differences were observed for micronuclei or other nuclear aberrations (p>0.05). At 50 μg/L, increased activity of CAT in liver and a 77.6% inhibition of AChE was observed (p<0.05). The results of this study demonstrate that environmentally concentrations of CPF can induce oxidative stress at concentrations lower than those at which AChE inhibition occurs. Although AChE is the target biomarker for organophosphates, it may not be as efficient early warning system as antioxidant enzymes, highlighting the approach of not always use the mode of action biomarkers. Taking into account that CPF values of the lethal concentration 50 (LC50) for other fish species are very high compared to the concentrations used in this experiment, next steps will include the evaluationof the LC50 in J. lineata.
Fil: Lombardero, Lucas Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Medici, Sandra Karina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones En Produccion, Sanidad y Ambiente.; Argentina
Fil: Mendieta, Julieta Renee. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina
Fil: Villagran, Diana Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Pérez, Débora Jesabel. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Innovación Para la Producción Agropecuaria y El Desarrollo Sostenible. - Instituto Nacional de Tecnologia Agropecuaria. Centro Regional Buenos Aires Sur. Estacion Experimental Agropecuaria Balcarce. Instituto de Innovación Para la Producción Agropecuaria y El Desarrollo Sostenible.; Argentina
Fil: Menone, Mirta Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
SETAC Latin America 15th Biennial Meeting
Montevideo
Uruguay
Society of Environmental Toxicology and Chemistry
description Chlorpyrifos (CPF) is a common organophosphate insecticide used for pest control in agriculture and nonagricultural settings, acting as an acetylcholinesterase (AChE) inhibitor. It is highly toxic to aquatic life and can persist in the environment (half- life: 81 days in surface water). The aim of the present study was to evaluate effects of oxidative stress and damage, neurotoxicity and genotoxicity in Jenynsia lineata exposed to environmentally relevant concentrations of CPF during 96 h. Five tanks (30 L) were set up, using females of J. lineata (n=6 per treatment; standard length: 4.31 ± 0.50 cm; total weight: 1.67 ± 0.51 gr), one as a control and four with CPF concentrations of 0.05, 0.5, 5, and 50 μg/L. Liver, gills, and brain were dissected and immediately frozen with liquid nitrogen and stored at -80°C until biomarkers analysis. The blood was extracted and smear were done and fixed with methanol for further analysis. During the course of the experiment, three individuals exposed at 50 ug/L and one exposed at 5 ug/L died at the first 24 hs indicating that this concentration is closed to the LC50. While the remaining three individuals exposed at 5o ug/L wereeuthanized because they looked moribund, and were used for measuring biomarkers. An increase in the activity of the enzymes catalase and glutathione-S-transferase in brain, and of superoxide dismutase in gills was observed at 0.05 μg/L (p<0.05). There were no significant differences in the activity of AChE between the control and the lowest concentration (0.05 μg/L) (p>0.05), while inhibition of AChE was observed at 0.5 μg/L (29.51%) and 5 μg/L (49.53%) (p<0.05). No significant differences were observed for micronuclei or other nuclear aberrations (p>0.05). At 50 μg/L, increased activity of CAT in liver and a 77.6% inhibition of AChE was observed (p<0.05). The results of this study demonstrate that environmentally concentrations of CPF can induce oxidative stress at concentrations lower than those at which AChE inhibition occurs. Although AChE is the target biomarker for organophosphates, it may not be as efficient early warning system as antioxidant enzymes, highlighting the approach of not always use the mode of action biomarkers. Taking into account that CPF values of the lethal concentration 50 (LC50) for other fish species are very high compared to the concentrations used in this experiment, next steps will include the evaluationof the LC50 in J. lineata.
publishDate 2023
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An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity; SETAC Latin America 15th Biennial Meeting; Montevideo; Uruguay; 2023; 406-406
CONICET Digital
CONICET
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identifier_str_mv An Approach to the Effects of Chlorpyrifos on Jenynsia lineata Exposed to Environmentally Relevant Concentrations: Biomarkers of Oxidative Stress, Neurotoxicity and Genotoxicity; SETAC Latin America 15th Biennial Meeting; Montevideo; Uruguay; 2023; 406-406
CONICET Digital
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