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Liu W, Li Z, Li F, Zhang Y, Ding S. Bioaccumulation and behavioral response patterns of crucian carp (Carassius carassius) after carbamazepine exposure and elimination. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175519. [PMID: 39168342 DOI: 10.1016/j.scitotenv.2024.175519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 08/06/2024] [Accepted: 08/12/2024] [Indexed: 08/23/2024]
Abstract
The antiepileptic drug carbamazepine (CBZ) has been widely detected in freshwater, yet its toxic actions in fish at multiple endpoints and the subsequent recovery patterns of the impacted are less discussed. This study investigated the bioaccumulation, physiological and behavioral changes of crucian carp (Carassius carassius) following CBZ exposure (G1 = 6.15 μg/L, G2 = 61.5 μg/L, G3 = 615 μg/L, G4 = 6150 μg/L) and subsequent recovery. Our results showed that CBZ was more likely to accumulate in the liver and brain than in the gills. A concentration-dependent phenomenon was observed; however, the residual CBZ decreased to similar levels after recovery. The behavioral indicators (i.e. feeding, social and spontaneous swimming) were significantly inhibited after 7-days of CBZ exposure, and only recovered at low concentration treatment (G1) after 7-days recovery in CBZ-free water. The acetylcholinesterase (AChE) activity in the brain and superoxide dismutase (SOD) activity in the liver and gills were induced after CBZ exposure and returned to normal levels after 7-days of recovery. In contrast, the inhibition of catalase (CAT) activity caused by CBZ exposure persisted in the high concentration treatment (G4) after recovery. Furthermore, correlation analysis indicated that changes in feeding behavior were closely related to the variation of CBZ concentrations in tissues, and the persistence of abnormal swimming and social behavior was closely related to gill CAT activity. These findings contribute to explore the toxic mechanisms of CBZ and highlight the recovery process and connections between various endpoints.
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Affiliation(s)
- Wei Liu
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Chang Jiang Ecology (Hubei) Technology Development Co. Ltd., Wuhan 430071, China
| | - Zhao Li
- China National Environmental Monitoring Centre, Beijing 100012, China
| | - Feilong Li
- Guangdong Basic Research Center of Excellence for Ecological Security and Green Development, Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Yuan Zhang
- Guangdong Basic Research Center of Excellence for Ecological Security and Green Development, Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Sen Ding
- State Environmental Protection Key Laboratory of Estuarine and Coastal Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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Sanches ALM, da Silva Pinto TJ, Daam MA, Teresa FB, Vieira BH, Reghini MV, de Almeida EA, Espíndola ELG. Isolated and mixed effects of pure and formulated abamectin and difenoconazole on biochemical biomarkers of the gills of Danio rerio. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 273:106978. [PMID: 38870676 DOI: 10.1016/j.aquatox.2024.106978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/15/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024]
Abstract
Pesticides are released into the environment daily, and their effects on nontarget species in aquatic ecosystems have been widely reported. To evaluate the adverse effects caused in adults of Danio rerio species exposed to the pesticides abamectin, difenoconazole, and their commercial formulations (Kraft 36EC® and Score 250EC®), both isolated and in mixtures, biochemical biomarkers were analyzed in the gills of organisms exposed to sublethal concentrations. To this end, the activities of the enzymes 7-ethoxyresorufin-O-deethylase (EROD), glucuronosyltransferase (UDPGT), glutathione-S-transferase (GST), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), lipid hydroperoxide (LH), and malondialdehyde (MDA), which are indicative of oxidative stress, were measured after 48 h of exposure to the different pesticide treatments. The results showed a significant increase in EROD activity and MDA levels in the gills of fish exposed to the commercial formulation of abamectin. When the fish were exposed to difenoconazole and its commercial formulation, an increase in GST, GPx, and MDA levels and a decrease in GR activity were observed in the gills. Furthermore, the responses of the biomarkers were more pronounced in organisms exposed to mixtures of both active ingredients and commercial formulations. It is concluded that the commercial formulations Kraft 36EC® and Score 250EC® and their mixtures cause significant alterations in the detoxification metabolism of exposed organisms and induce oxidative stress in fish.
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Affiliation(s)
- Ana Letícia Madeira Sanches
- Department of Aquaculture and Fisheries Resources, São Paulo State University (UNESP), Registro, São Paulo, Brazil; NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil.
| | - Thandy Junio da Silva Pinto
- University of Campinas (UNICAMP), Institute of Chemistry, Campinas, Rua Josué de Castro, s/n - Cidade Universitária, 13083-970, São Paulo, Brazil
| | - Michiel Adriaan Daam
- NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil; CENSE - Center for Environmental and Sustainability Research & CHANGE - Global Change and Sustainability Institute, NOVA School of Science and Technology, NOVA University Lisbon, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Fabrício Barreto Teresa
- UEG State University of Goiás, Unit of Exact and Technological Sciences (UnUCET), Anápolis, Goiás, Brazil
| | - Bruna Horvath Vieira
- NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
| | - Marina Vanderlei Reghini
- NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
| | - Eduardo Alves de Almeida
- Department of Natural Science, Fundação Universidade Regional de Blumenau, Blumenau, Santa Catarina, Brazil
| | - Evaldo Luiz Gaeta Espíndola
- NEEA/CRHEA/SHS, School of Engineering of São Carlos, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
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Arreguin-Rebolledo U, Morales-Romero LA, Arzate-Cárdenas MA, Páez-Osuna F, Betancourt-Lozano M, Rico-Martínez R. Contrasting toxicity response to a mixture of azithromycin and ivermectin between a freshwater and a euryhaline rotifer. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:49905-49915. [PMID: 39085690 DOI: 10.1007/s11356-024-34406-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/13/2024] [Indexed: 08/02/2024]
Abstract
Organisms are usually exposed to mixtures of emerging pollutants in aquatic environments. Due to their widespread use and environmental relevance, the individual and combined effects of the drugs azithromycin (AZT) and ivermectin (IVM) on the freshwater rotifer Lecane papuana and the euryhaline rotifer Proales similis were investigated. Rotifers showed greater sensitivity to IVM compared to AZT. The LC50 values of IVM and AZT for L. papuana and P. similis were 0.163 and 0.172 mg/L, and 13.52 and 20.00 mg/L, respectively. Population growth rates, assessed in chronic toxicity assays, responded negatively to increasing concentrations of both toxicants, either individually or in combination. Our results revealed two distinct combined toxicity responses: a strong synergistic effect in the freshwater rotifer and a marked antagonistic impact of the AZT-IVM mixtures in the euryhaline rotifer.
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Affiliation(s)
- Uriel Arreguin-Rebolledo
- Centro de Ciencias Básicas, Departamento de Química, Universidad Autónoma de Aguascalientes, Avenida Universidad 940, C.P. 20130, Aguascalientes, Ags, México
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de Mexico, Unidad Académica Mazatlán, Mazatlán, Mexico
| | - Levi Asher Morales-Romero
- Centro de Ciencias Básicas, Departamento de Química, Universidad Autónoma de Aguascalientes, Avenida Universidad 940, C.P. 20130, Aguascalientes, Ags, México
| | - Mario Alberto Arzate-Cárdenas
- Investigadoras E Investigadores Por México, CONAHCYT, Universidad Autónoma de Aguascalientes, Avenida Universidad 940, C.P. 20100, Aguascalientes, Ags, México
| | - Federico Páez-Osuna
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de Mexico, Unidad Académica Mazatlán, Mazatlán, Mexico
| | | | - Roberto Rico-Martínez
- Centro de Ciencias Básicas, Departamento de Química, Universidad Autónoma de Aguascalientes, Avenida Universidad 940, C.P. 20130, Aguascalientes, Ags, México.
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4
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Pires de Almeida TV, Sales CF, Ribeiro YM, Sobjak TM, Bazzoli N, Melo RMC, Rizzo E. Metal-contaminated sediment toxicity in a highly impacted Neotropical river: Insights from zebrafish embryo toxicity assays. CHEMOSPHERE 2024; 362:142627. [PMID: 38885763 DOI: 10.1016/j.chemosphere.2024.142627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
The Fundão dam collapse was one of the largest mining-related disasters globally. It resulted in the release of mining tailings containing heavy metals, which contaminated the Doce River in southeastern Brazil. This study assessed the effects of acute exposure of Danio rerio embryos to sediments contaminated by mine tailings six years after the Fundão dam collapse. The study sites included P2, P3, and P4 in the upper Doce River, as well as site P1 on the Piranga River, an uncontaminated river. Sediment samples were analyzed for 10 metals/metalloid by atomic absorption spectrometry. In the assays, embryos were exposed to sediment from P1-P4 sites, and uncontaminated quartz was used as control sediment. Various biomarkers were applied to assess biological responses, and the integrated biomarker response (IBR) index was calculated for each site. Sediment samples revealed elevated levels of As, Cr, Cu, Hg, and Ni beyond Brazilian legislation limits. At 96-h exposure, embryo mortality rates exceeded 20% in P1, P2, and P3, higher than the control and P4 (p < 0.0001). Hatching rates ranged from 60 to 80% in P1, P2, and P3, lower than the control and P4 (p < 0.001). Larvae exposed to P2 sediment (closest to the Fundão dam) exhibited skeletal, physiological, and sensory malformations. Neurotoxicity was indicated by increased acetylcholinesterase activity and reduced spontaneous movements in embryos exposed to Doce River sediment. Contamination also increased metallothionein and heat shock protein 70 levels, along with changes in cell proliferation and apoptosis. Principal component analysis showed a good correlation between metals/metalloid in the sediment and larval morphometric endpoints. The IBR index highlighted suitable biomarkers for monitoring metal contamination in fish embryos. Overall, our findings suggest that sediment toxicity following the Fundão dam failure may compromise the sustainability of fish communities in the Doce River.
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Affiliation(s)
- Thaís Victória Pires de Almeida
- Programa de Pós-Graduação em Biologia Celular, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P.486, 30161-970, Minas Gerais, Brazil
| | - Camila Ferreira Sales
- Programa de Pós-Graduação em Biologia Celular, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P.486, 30161-970, Minas Gerais, Brazil
| | - Yves Moreira Ribeiro
- Programa de Pós-Graduação em Biologia Celular, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P.486, 30161-970, Minas Gerais, Brazil
| | - Thais Maylin Sobjak
- Programa de Pós-Graduação em Biologia Celular, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P.486, 30161-970, Minas Gerais, Brazil
| | - Nilo Bazzoli
- Programa de Pós-Graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais, Brazil
| | - Rafael Magno Costa Melo
- Programa de Pós-Graduação em Biologia Celular, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P.486, 30161-970, Minas Gerais, Brazil
| | - Elizete Rizzo
- Programa de Pós-Graduação em Biologia Celular, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, C.P.486, 30161-970, Minas Gerais, Brazil.
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Dhakshinamoorthy V, Vishali SPR, Elumalai S, Perumal E. Acute exposure to environmentally relevant concentrations of pharmaceutical pollutants induces neurobehavioral toxicity in zebrafish ( Danio rerio). Drug Chem Toxicol 2024:1-14. [PMID: 39072487 DOI: 10.1080/01480545.2024.2382451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/09/2024] [Accepted: 07/15/2024] [Indexed: 07/30/2024]
Abstract
Pharmaceutical waste from point and non-point sources enters, persists, or disseminates in the environment and is known as environmentally persistent pharmaceutical pollutants. Understanding the impacts of pharmaceutical pollutants on the environment and health is essential. This study investigates the behavioral impacts of pharmaceutical pollutants on aquatic organisms and delineates the possible nexus of oxidative stress. The male zebrafish were exposed to four major representative pharmaceutical pollutants, viz., acetaminophen, carbamazepine, metformin, and trimethoprim at environmentally relevant concentrations individually as well as in a mixture for seven days. Substantial alterations in social interaction, aggressive nature, novel tank exploration, and light and dark zone preferences were recorded and the degree varied to different pharmaceutical pollutants. The activity of oxidative stress markers, superoxide dismutase, glutathione-S-transferase, and catalase, was found to be suppressed to 66-20%, 42-25%, and 59-20% respectively with the elevated malondialdehyde generation (180-260%) compared to control. The activity level of acetylcholine esterase was found to be increased to 200-500% across all treatment groups. Despite the synergistic impacts of pharmaceutical pollutants on the whole system that could not be ascertained, this comprehensive study highlights their toxicity nature to induce neurobehavioral toxicity in zebrafish through oxidative stress mechanisms and altered cholinergic systems.
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Affiliation(s)
- Vasanth Dhakshinamoorthy
- Department of Nanobiotechnology, Molecular Environmental Toxicology Laboratory, PSG Institute of Advanced Studies, Coimbatore, India
- PG Research Department of Biotechnology, Microbiology & Bioinformatics, National College (Autonomous), Trichy, India
| | - S P R Vishali
- PG Research Department of Biotechnology, Microbiology & Bioinformatics, National College (Autonomous), Trichy, India
| | - Sriramakrishnan Elumalai
- PG Research Department of Biotechnology, Microbiology & Bioinformatics, National College (Autonomous), Trichy, India
| | - Ekambaram Perumal
- Department of Biotechnology, Molecular Toxicology Laboratory, Bharathiar University, Coimbatore, India
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Lozano IE, Lo Nostro FL, Llamazares Vegh S, Lagraña A, Marino DJG, Czuchlej C, de la Torre FR. Impact of antiparasitic used in livestock: effects of ivermectin spiked sediment in Prochilodus lineatus, an inland fishery species of South America. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:45425-45440. [PMID: 38965109 DOI: 10.1007/s11356-024-34057-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 06/17/2024] [Indexed: 07/06/2024]
Abstract
Ivermectin (IVM) is a widely used antiparasitic. Concerns have been raised about its environmental effects in the wetlands of Río de la Plata basin where cattle have been treated with IVM for years. This study investigated the sublethal effects of environmentally relevant IVM concentrations in sediments on the Neotropical fish Prochilodus lineatus. Juvenile P. lineatus were exposed to IVM-spiked sediments (2 and 20 µg/Kg) for 14 days, alongside a control sediment treatment without IVM. Biochemical and oxidative stress responses were assessed in brain, gills, and liver tissues, including lipid damage, glutathione levels, enzyme activities, and antioxidant competence. Muscle and brain acetylcholinesterase activity (AChE) and stable isotopes of 13C and 15N in muscle were also measured. The lowest IVM treatment resulted in an increase in brain lipid peroxidation, as measured by thiobarbituric acid reactive substances (TBARs), decreased levels of reduced glutathione (GSH) in gills and liver, increased catalase activity (CAT) in the liver, and decreased antioxidant capacity against peroxyl radicals (ACAP) in gills and liver. The highest IVM treatment significantly reduced GSH in the liver. Muscle (AChE) was decreased in both treatments. Multivariate analysis showed significant overall effects in the liver tissue, followed by gills and brain. These findings demonstrate the sublethal effects of IVM in P. lineatus, emphasizing the importance of considering sediment contamination and trophic habits in realistic exposure scenarios.
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Affiliation(s)
- Ismael E Lozano
- Lab. Ecotoxicología Acuática, DBBE, FCEN, Universidad de Buenos & IBBEA, UBA-CONICET, CABA, Buenos Aires, Argentina
| | - Fabiana L Lo Nostro
- Lab. Ecotoxicología Acuática, DBBE, FCEN, Universidad de Buenos & IBBEA, UBA-CONICET, CABA, Buenos Aires, Argentina
| | - Sabina Llamazares Vegh
- Instituto de Investigaciones en Producción Animal, INPA, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina
| | - Aldana Lagraña
- GECAP, Instituto de Ecología y Desarrollo Sustentable, Ciencias Básicas, Universidad Nacional de Luján-CONICET, Luján, Argentina
| | - Damián J G Marino
- CIM, Facultad de Ciencias Exactas, Universidad Nacional de La Plata-CONICET, La Plata, Argentina
| | - Cristina Czuchlej
- Lab. Ecotoxicología Acuática, DBBE, FCEN, Universidad de Buenos & IBBEA, UBA-CONICET, CABA, Buenos Aires, Argentina
| | - Fernando R de la Torre
- GECAP, Instituto de Ecología y Desarrollo Sustentable, Ciencias Básicas, Universidad Nacional de Luján-CONICET, Luján, Argentina.
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Peluso J, Gamarra F, Aronzon CM. Synergistic interactions between the emerging contaminant ivermectin and the ubiquitous pesticide glyphosate at an environmentally relevant ratio on Rhinella arenarum larvae. CHEMOSPHERE 2024; 358:142058. [PMID: 38642777 DOI: 10.1016/j.chemosphere.2024.142058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 04/22/2024]
Abstract
Glyphosate (GLY) is a widely used broad-spectrum herbicide, and ivermectin (IVM) is a commonly used antiparasitic in livestock farming. Both substances can be found in water bodies from agricultural areas and can have negative impacts on ecosystems. The aim of this study was to evaluate the lethal and sublethal toxicity individually and in combination of a glyphosate-based herbicide (GBH) and an ivermectin commercial formulation (ICF). Groups of 10 larvae were exposed for 504 h, in triplicate to a concentration gradient of the commercial formulation of glyphosate and ivermectin, individually, and to a series of dilutions of a non-equitoxic mixture of both compounds based on environmental concentrations. Additionally, biomarkers of oxidative stress (catalase, glutathione S-transferase, and reduced glutathione) and neurotoxicity (acetylcholinesterase and butyrylcholinesterase) were evaluated at sublethal and environmental concentrations of ivermectin (0.00125 mg/L) and glyphosate (0.7 mg/L) individually and in mixture. The ICF (LC50-504h: 0.047 mg ai IVM/L) was more toxic to larvae than the GBH (LC50-504h: 24.73 mg ae GLY/L). In terms of lethality, exposure to the mixture was synergistic at all exposure times. Both compounds separately caused alterations in the biomarkers of oxidative stress and neurotoxicity. Regarding sublethal effects in organisms exposed to the mixture, potentiation was observed in acetylcholinesterase. The simultaneous exposure to both substances in water bodies can have synergistic and negative effects on aquatic organisms.
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Affiliation(s)
- Julieta Peluso
- IIIA-UNSAM-CONICET, Instituto de Investigación e Ingeniería Ambiental, Escuela de Hábitat y Sostenibilidad (EHyS), Universidad Nacional de San Martín UNSAM, Campus Miguelete, 25 de mayo y Francia, 1650, San Martín, Provincia de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Fanny Gamarra
- IIIA-UNSAM-CONICET, Instituto de Investigación e Ingeniería Ambiental, Escuela de Hábitat y Sostenibilidad (EHyS), Universidad Nacional de San Martín UNSAM, Campus Miguelete, 25 de mayo y Francia, 1650, San Martín, Provincia de Buenos Aires, Argentina
| | - Carolina M Aronzon
- IIIA-UNSAM-CONICET, Instituto de Investigación e Ingeniería Ambiental, Escuela de Hábitat y Sostenibilidad (EHyS), Universidad Nacional de San Martín UNSAM, Campus Miguelete, 25 de mayo y Francia, 1650, San Martín, Provincia de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
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Pinto B, Correia D, Conde T, Faria M, Oliveira M, Domingues MDR, Domingues I. Impact of chronic fluoxetine exposure on zebrafish: From fatty acid profile to behavior. CHEMOSPHERE 2024; 357:142026. [PMID: 38615959 DOI: 10.1016/j.chemosphere.2024.142026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/07/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
The consumption of antidepressants, such as fluoxetine, has increased over the years and, as a result, they are increasingly found in aquatic systems. Given the increasing use of zebrafish as an animal model in toxicological studies, this work proposed to evaluate the effects of chronic exposure, for 21 days, to fluoxetine at environmentally relevant concentrations (1, 10, 100, and 1000 ng/L). The behavioral tests performed did not reveal significant effects of fluoxetine. However, oxidative stress and changes in energy metabolism were detected after exposure to the highest concentrations of fluoxetine tested, namely a decrease in glutathione S-transferase (GST) activity (decrease of ca. 31%), increase in catalase (CAT) activity (increase of ca. 71%), and decrease in lactate dehydrogenase (LDH) activity (decrease of ca. 53%). Analysis of the fatty acid profile (FA) revealed a decrease in the omega-3 FA, docosahexaenoic acid (DHA), C22:6 (decrease in relative abundance between 6% and 8% for both the head and body), an increase in omega-6 FA, linoleic acid (LA), C18:2, (increased relative abundance between 8% and 11% in the head and between 5% and 9% in the body), which may suggest changes in the inflammatory state of these organisms. The integrated analysis adopted proved to be useful in detecting subindividual effects of fluoxetine and modes of action in fish.
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Affiliation(s)
- Bruno Pinto
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal; Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Daniela Correia
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Tiago Conde
- Centre for Environmental and Marine Studies (CESAM), Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal; Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal; Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Melissa Faria
- IDAEA-CSIC, Jordi Girona 18, 08034, Barcelona, Spain
| | - Miguel Oliveira
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Maria do Rosário Domingues
- Centre for Environmental and Marine Studies (CESAM), Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal; Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Inês Domingues
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, Santiago University Campus, University of Aveiro, 3810-193, Aveiro, Portugal
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Maggiolino A, Sgarro MF, Casalino E, Latronico T, Liuzzi GM, De Palo P. Use of a commercial feed supplement based on diatom earth and yeast products on oxidative status and in vitro immune response in buffaloes during peripartum. J Anim Sci 2024; 102:skae178. [PMID: 38954519 PMCID: PMC11369359 DOI: 10.1093/jas/skae178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 07/01/2024] [Indexed: 07/04/2024] Open
Abstract
The transition period is a critical metabolic phase for dairy ruminants, especially those with high production levels. In spite of this, little is still known about dairy water buffalo. The aim of this study was to evaluate the effect of a commercial feed additive based on diatomaceous earth and hydrolyzed yeasts on health status, milk quality, and immune response of buffalo cows during the transition period. Eighty healthy Water buffaloes (Bubalus bubalis) of Italian Mediterranean breed were included in the trial. They were subdivided into two groups: one group received the additive (n = 40) while the control group (n = 40) received a placebo. The trial lasted 120 d, from 60 d before calving to 60 d in milk. Blood samples were collected from each buffalo at -60 (60 d from the expected calving), -30, 0 (calving), +15, +30, and +60 d (respectively, i.e., 15, 30, and 60 d in milking). The biochemical as well as the oxidative profile, and the antioxidant power and enzymatic activity were evaluated in the samples obtained. Moreover, acute phase proteins, reactive proteins, and interleukin plasma levels were determined. Peripheral blood mononuclear cells (PBMCs) and monocytes were isolated and viability, reactive oxygen species (ROS), and reactive nitrogen species were measured on PBMC and monocytes. The introduction of additives enhanced the total antioxidant capacity and enzyme activity, while no differences were observed in oxidation products throughout the trial. Additionally, it significantly reduced the synthesis of ROS in polymorphonuclear cells, supporting a potential positive response in animals experiencing inflammation. The impact of oxidation on the products was not evident. Despite higher enzyme levels in plasma, this did not necessarily correspond to significantly increased enzymatic activity but rather indicated a higher potential. From these results, it was evident that the transition period in buffaloes differs notably from what reported in the literature for cows, probably due to the absence of common postpartum production diseases in dairy cows and lower metabolic challenges linked to lower milk production in buffaloes. Few parameters exhibited notable changes during the transition period in buffaloes, notably certain antioxidant enzymes, PBMC viability, PBMC ROS production, and Hp levels.
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Affiliation(s)
- Aristide Maggiolino
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy
| | - Maria Federica Sgarro
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy
| | - Elisabetta Casalino
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy
| | - Tiziana Latronico
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70026 Bari, Italy
| | - Grazia Maria Liuzzi
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70026 Bari, Italy
| | - Pasquale De Palo
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy
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10
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Azevedo VC, Kennedy CJ. The effects of P-glycoprotein induction on ivermectin-induced behavioural alterations in zebrafish (Danio rerio) under varying diets. Comp Biochem Physiol C Toxicol Pharmacol 2023; 274:109740. [PMID: 37689171 DOI: 10.1016/j.cbpc.2023.109740] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/24/2023] [Accepted: 09/03/2023] [Indexed: 09/11/2023]
Abstract
The neuroprotective effects of inducing the blood-brain barrier ATP-binding cassette protein transporter P-glycoprotein (P-gp) with clotrimazole (CTZ) in both fed and fasted zebrafish (Danio rerio) against the CNS-toxicant ivermectin (IVM, 22,23-dihydro avermectin B1a + 22,23-dihydro avermectin B1b) were examined. Zebrafish were administered 2 μmol/kg IVM intraperitoneally, and various behavioural assays (swimming performance, exploratory behaviour, olfactory responses, motor coordination, and escape responses) were used to measure neurological dysfunction. IVM administration alone caused a decrease in mean swim speed (91 % of controls), maximal speed (71 %), passage rate (81 %), 90° turns (81 %), and response to food stimulus (39 %). IVM exposure also increased the percent time that fish spent immobile (45 % increase over controls) and the percent of lethargic fish (40 % increase). Fish administered 30 μmol/kg of the P-gp inducer CTZ intraperitoneally 3 d prior to IVM exposure exhibited a change in only the % time spent immobile. These data indicate that P-gp induction may be limited in protecting the zebrafish CNS from IVM over baseline. Fasted fish did not differ from fed fish in the effects of IVM on behaviour, and no differences were seen following P-gp induction with CTZ. These results suggest that this chemical defence system is not downregulated when fish are challenged with limited energy availability.
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Affiliation(s)
- Vinicius Cavicchioli Azevedo
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada. https://twitter.com/vini_cazevedo
| | - Christopher J Kennedy
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada.
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11
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Pinto A, Botelho MJ, Churro C, Asselman J, Pereira P, Pereira JL. A review on aquatic toxins - Do we really know it all regarding the environmental risk posed by phytoplankton neurotoxins? JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118769. [PMID: 37597370 DOI: 10.1016/j.jenvman.2023.118769] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/24/2023] [Accepted: 08/09/2023] [Indexed: 08/21/2023]
Abstract
Aquatic toxins are potent natural toxins produced by certain cyanobacteria and marine algae species during harmful cyanobacterial and algal blooms (CyanoHABs and HABs, respectively). These harmful bloom events and the toxins produced during these events are a human and environmental health concern worldwide, with occurrence, frequency and severity of CyanoHABs and HABs being predicted to keep increasing due to ongoing climate change scenarios. These contexts, as well as human health consequences of some toxins produced during bloom events have been thoroughly reviewed before. Conversely, the wider picture that includes the non-human biota in the assessment of noxious effects of toxins is much less covered in the literature and barely covered by review works. Despite direct human exposure to aquatic toxins and related deleterious effects being responsible for the majority of the public attention to the blooms' problematic, it constitutes a very limited fraction of the real environmental risk posed by these toxins. The disruption of ecological and trophic interactions caused by these toxins in the aquatic biota building on deleterious effects they may induce in different species is paramount as a modulator of the overall magnitude of the environmental risk potentially involved, thus necessarily constraining the quality and efficiency of the management strategies that should be placed. In this way, this review aims at updating and consolidating current knowledge regarding the adverse effects of aquatic toxins, attempting to going beyond their main toxicity pathways in human and related models' health, i.e., also focusing on ecologically relevant model organisms. For conciseness and considering the severity in terms of documented human health risks as a reference, we restricted the detailed revision work to neurotoxic cyanotoxins and marine toxins. This comprehensive revision of the systemic effects of aquatic neurotoxins provides a broad overview of the exposure and the hazard that these compounds pose to human and environmental health. Regulatory approaches they are given worldwide, as well as (eco)toxicity data available were hence thoroughly reviewed. Critical research gaps were identified particularly regarding (i) the toxic effects other than those typical of the recognized disease/disorder each toxin causes following acute exposure in humans and also in other biota; and (ii) alternative detection tools capable of being early-warning signals for aquatic toxins occurrence and therefore provide better human and environmental safety insurance. Future directions on aquatic toxins research are discussed in face of the existent knowledge, with particular emphasis on the much-needed development and implementation of effective alternative (eco)toxicological biomarkers for these toxins. The wide-spanning approach followed herein will hopefully stimulate future research more broadly addressing the environmental hazardous potential of aquatic toxins.
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Affiliation(s)
- Albano Pinto
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal.
| | - Maria João Botelho
- IPMA, Portuguese Institute for the Sea and Atmosphere, Av. Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Catarina Churro
- IPMA, Portuguese Institute for the Sea and Atmosphere, Av. Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Jana Asselman
- Blue Growth Research Lab, Ghent University, Bluebridge Building, Ostend Science Park 1, 8400, Ostend, Belgium
| | - Patrícia Pereira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
| | - Joana Luísa Pereira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
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12
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Santos N, Picolo V, Domingues I, Perillo V, Villacis RAR, Grisolia CK, Oliveira M. Effects of environmental concentrations of caffeine on adult zebrafish behaviour: a short-term exposure scenario. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:63776-63787. [PMID: 37058238 PMCID: PMC10172215 DOI: 10.1007/s11356-023-26799-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 03/30/2023] [Indexed: 04/15/2023]
Abstract
Caffeine (CAF) has been considered an emerging environmental contaminant and its presence indicator of anthropogenic contamination. This study evaluated the effects of environmental concentrations of CAF (0, 0.5, 1.5, and 300 μg. L-1) on the behaviour of adult zebrafish (Danio rerio) after 7 days of exposure. The components of feeding, locomotion, boldness (new tank test), sociability (schooling test), and aggression (mirror test) were analysed. Growth rate and weight were investigated as complementary measures. CAF (0.5, 1.5, and 300 μg. L-1) reduced exploratory behaviour in zebrafish, increased feeding latency time (1.5, and 300 μg. L-1), and decreased growth rate and fish weight (300 μg. L-1). CAF also induced aggressive behaviour (0.5, 1.5, and 300 μg. L-1) and decreased appetence to the shoal (sociability) (0.5, and 1.5 μg. L-1). This study showed that low doses of CAF can induce behavioural effects in zebrafish that may have significant long-term impacts on vital ecological functions.
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Affiliation(s)
- Niedja Santos
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Victor Picolo
- Department of Physiological Sciences, Institute of Biological Sciences, University of Brasilia, University Campus Darcy Ribeiro, Brasilia, DF, 70910-900, Brazil
- Graduate Program in Molecular Pathology, Faculty of Health Sciences, University of Brasilia, University Campus Darcy Ribeiro, Brasilia, DF, 70910-900, Brazil
| | - Inês Domingues
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Vitória Perillo
- Laboratory of Toxicological Genetics, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília, Distrito Federal, 70910-900, Brazil
| | - Rolando A R Villacis
- Laboratory of Toxicological Genetics, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília, Distrito Federal, 70910-900, Brazil
| | - Cesar Koppe Grisolia
- Laboratory of Toxicological Genetics, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília, Distrito Federal, 70910-900, Brazil
| | - Miguel Oliveira
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
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13
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Lorente CJ, Mesa L, Montalto L, Gutiérrez MF, Miró MV, Lifschitz A. Ivermectin bioaccumulation and transfer through developmental stages in Culex pipiens (Diptera: Culicidae). CHEMOSPHERE 2023; 322:138106. [PMID: 36780993 DOI: 10.1016/j.chemosphere.2023.138106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/20/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Ivermectin (IVM), one of the most widely used antiparasitics in livestock, could enters into the aquatic environment because the treated animal metabolizes only a small percentage of what is administered and the rest is eliminated through the feces, largely as a parent drug, imposing a risk to aquatic organisms. The aims of this study were to (1) assess the effect of IVM spiked in cattle dung on the survival and emergence of Culex pipiens (Diptera: Culicidae), and to (2) evaluate the accumulation of this drug in the different developmental stages of this taxon. Larvae were exposed to two IVM concentrations (T1: 1000 ng g-1 and T2: 500 ng g-1) for 9 days. At days 3, 6 and 9 survival and adult emergence were recorded and samples of larvae, pupae, pupal exuviae and adults were taken to analyze the IVM accumulation. At these concentrations, a reduction in survival and adult emergence of C. pipiens was recorded. In addition, the IVM accumulation was observed in all samples analyzed, decreasing it throughout the development of this taxon (larvae > pupae > adults). Although a large proportion of the drug was lost during the metamorphosis, being mainly eliminated through pupal exuviae during molting, this process is not enough to eliminate it completely. Thus, part of the drug was transferred to the adult stage and remains available to the aquatic and terrestrial food webs. These results show that IVM represents a risk to aquatic invertebrates and their predators, which deserves further studies, especially in the context of their bioaccumulation and biomagnification through the aquatic and terrestrial trophic webs.
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Affiliation(s)
- Camila Jazmín Lorente
- Instituto Nacional de Limnología, Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo, CP 3000 Santa Fe, Provincia de Santa Fe, Argentina.
| | - Leticia Mesa
- Instituto Nacional de Limnología, Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo, CP 3000 Santa Fe, Provincia de Santa Fe, Argentina
| | - Luciana Montalto
- Instituto Nacional de Limnología, Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo, CP 3000 Santa Fe, Provincia de Santa Fe, Argentina; Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo, CP 3000 Santa Fe, Provincia de Santa Fe, Argentina
| | - María Florencia Gutiérrez
- Instituto Nacional de Limnología, Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo, CP 3000 Santa Fe, Provincia de Santa Fe, Argentina; Escuela Superior de Sanidad "Ramón Carrillo", Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Paraje El Pozo, CP 3000 Santa Fe, Provincia de Santa Fe, Argentina
| | - María Victoria Miró
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil, Consejo Nacional de Investigaciones Científicas y Técnicas - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Campus Universitario, CP 7000 Tandil, Provincia de Buenos Aires, Argentina
| | - Adrián Lifschitz
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil, Consejo Nacional de Investigaciones Científicas y Técnicas - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Campus Universitario, CP 7000 Tandil, Provincia de Buenos Aires, Argentina
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14
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Carneiro D, Damasceno ÉP, Ferreira V, Charlie-Silva I, Tedim J, Maia F, Loureiro S, Martins R, Pavlaki MD. Zn-Al layered double hydroxides induce embryo malformations and impair locomotion behavior in Danio rerio. NANOIMPACT 2023; 30:100457. [PMID: 36828229 DOI: 10.1016/j.impact.2023.100457] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 06/03/2023]
Abstract
Layered double hydroxides (LDHs) are stimuli-responsive anionic nanoclays. The vast possibilities of using LDHs can lead to their existence in the ecosystem, raising a question of potential ecological concern. However, little is known about the effect of these nanomaterials on freshwater organisms. The present study aimed to assess the ecotoxicological effects of Zinc-Aluminium LDH-nitrate (ZnAl LDH-NO3) in zebrafish (Danio rerio) early life stages. The endpoints measured were mortality, malformations and hatching rate after exposure of D. rerio embryos and larvae to ZnAl LDH-NO3 following the OECD 236 guideline. The behavioral, biochemical (markers of oxidative stress and neurotoxicity), and molecular (at DNA level) alterations were also assessed using sub-lethal concentrations. No observable acute effects were detected up to 415.2 mg LDH/L while the 96 h-LC50 was estimated as 559.9 mg/L. Tested LDH caused malformations in D. rerio embryos, such as pericardial edema, incomplete yolk sac absorption and tail deformities (96 h-EC50 = 172.4 mg/L). During the dark periods, the locomotor behavior in zebrafish larvae was affected upon ZnAl LDH-NO3 exposure. However, no significant biochemical and molecular changes were recorded. The present findings suggest that ZnAl LDH-NO3 can be regarded as a non-toxic nanomaterial towards D. rerio (E/LC50 > > 100 mg/L) although impairment of the locomotion behavior on zebrafish embryos can be expected at concentrations below 100 mg/L.
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Affiliation(s)
- Diana Carneiro
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Évila Pinheiro Damasceno
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Violeta Ferreira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Ives Charlie-Silva
- Institute of Biomedical Sciences, Department of Pharmacology, University of São Paulo, São Paulo, Brazil
| | - João Tedim
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Aveiro 3810-193, Portugal
| | - Frederico Maia
- Smallmatek - Small Materials and Technologies, Lda, Aveiro 3810-075, Portugal
| | - Susana Loureiro
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Roberto Martins
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal.
| | - Maria D Pavlaki
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
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15
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Liu W, Zhang J, Liang X, Wang Y, Liu R, Zhang R, Zha J, Martyniuk CJ. Environmental concentrations of 2, 4-DTBP cause immunotoxicity in zebrafish (Danio rerio) and may elicit ecological risk to wildlife. CHEMOSPHERE 2022; 308:136465. [PMID: 36126734 DOI: 10.1016/j.chemosphere.2022.136465] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/29/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
Synthetic phenolic antioxidant 2,4-di-tert-butylphenol (2,4-DTBP) has gained growing concerns due to relatively high concentrations in aquatic ecosystems. There are, however, significant knowledge gaps regarding its potential toxicity to aquatic organisms. In this study, zebrafish (Danio rerio) larvae were exposed to 0.01, 0.1, or 1 μM 2,4-DTBP for 6 d. Transcriptomic analysis of larvae revealed that biological processes related to anti-inflammatory function of macrophage M2 lineage were inhibited by 0.01 μM 2,4-DTBP. Decreases of transcripts related to the IL1B-MYD88-NF-κB pathway (i.e., il1b, il1rl1, myd88, irak4, irak1, traf6, ikbkg, nfkbia, nfkb) and protein levels of NF-κB in larvae intestine confirmed anti-inflammatory effects of 2,4-DTBP. Subsequently, larvae exposed to 2,4-DTBP were challenged with E. coli and showed higher survival rate, suggesting sustained activation of inflammation via LPS can be attenuated by 2,4-DTBP. Moreover, histological examination revealed that intestine barrier was compromised and there was an imbalance of intestine macrophage homeostasis. Food intake was also reduced following exposure to 0.1 and 1 μM 2,4-DTBP. In addition, a risk assessment revealed that 2,4-DTBP in surface water pose low to high ecological risks to aquatic organisms. Taken together, exposure to environmentally relevant concentrations of 2,4-DTBP could negatively affect immune response in zebrafish and may elicit ecological risk in fish population.
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Affiliation(s)
- Wang Liu
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China; Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Jiye Zhang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Xuefang Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China.
| | - Yuchen Wang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Ruimin Liu
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Ruiqing Zhang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Jinmiao Zha
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Christopher J Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA
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16
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Qiao L, Xu J, Yang Z, Li X, Chen L, Sun H, Mu Y. Residual Risk of Avermectins in Food Products of Animal Origin and Their Research Progress on Toxicity and Determination. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2132402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Lu Qiao
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing, China
| | - Jinhua Xu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing, China
| | - Zhen Yang
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing, China
| | - Xingyang Li
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing, China
- College of Food Science and Engineering, Bohai University, Jinzhou, China
| | - Lu Chen
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing, China
- College of Food Science and Engineering, Bohai University, Jinzhou, China
| | - Huiwu Sun
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing, China
| | - Yingchun Mu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing, China
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17
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Azevedo VC, Kennedy CJ. P-glycoprotein inhibition affects ivermectin-induced behavioural alterations in fed and fasted zebrafish (Danio rerio). FISH PHYSIOLOGY AND BIOCHEMISTRY 2022; 48:1267-1283. [PMID: 36006557 DOI: 10.1007/s10695-022-01111-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
The role of the blood-brain barrier ATP-binding cassette protein transporter P-glycoprotein (P-gp) in protecting zebrafish (Danio rerio) from the central nervous system neurotoxicant ivermectin (IVM, 22,23-dihydroavermectin B1a + 22,23-dihydroavermectin B1b) was examined in the absence and presence of the competitive inhibitor cyclosporin A (CsA). Zebrafish injected intraperitoneally with 1, 2, 5, or 10 µmol/kg IVM exhibited mortality 30 min following administration at the highest dose. At sublethal doses > 1 µmol/kg, IVM altered the swimming performance, exploratory behaviour, motor coordination, escape response and olfactory response in exposed fish. When fish were exposed to IVM in the presence of CsA, alterations in swimming and behaviours increased significantly and at the highest IVM/CsA ratio resulted in a complete lack of exploratory and olfactory behaviours. In separate experiments, fish were either fed or fasted, and the effects of IVM and CsA administration were examined. The effects of IVM administration and the exacerbated effects seen with CsA co-administration were not affected by fasting. This study provides evidence that P-gp provides a protective role in the BBB of fish against environmental neurotoxicants. The results also show that P-gp activity is maintained even under conditions of food deprivation, suggesting that this chemical defence system is prioritized over other energy expenditures during diet limitation.
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Affiliation(s)
- Vinicius C Azevedo
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada
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18
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Environmental Impact of Pharmaceutical Pollutants: Synergistic Toxicity of Ivermectin and Cypermethrin. TOXICS 2022; 10:toxics10070388. [PMID: 35878293 PMCID: PMC9325130 DOI: 10.3390/toxics10070388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 02/05/2023]
Abstract
Veterinary antiparasitic pharmaceuticals as well as pesticides have been detected in surface waters, and they may cause several toxic effects in this environmental compartment. In the present study, we evaluated the toxicity after exposure of different concentration of ivermectin (IVM; 50, 100, and 200 μg L−1) and cypermethrin (CYP; 5, 10, and 25 μg L−1) and the combination of these two compounds at non-toxic concentration (IVM 100 + CYP 5 μg L−1) in zebrafish embryos. Combination of IVM at 100 μg L−1 with CYP at 5 μg L−1 exposure induced hatching delay and malformations at 96 hpf in zebrafish larvae as well as significant induction of cell death in zebrafish larvae. At the same time, the two single concentrations of IVM and CYP did not show a toxic effect on zebrafish development. In conclusion, our study suggests that IVM and CYP show a synergistic effect at common, ineffective concentrations, promoting malformation and cell death in fish development.
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19
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Volkova YA, Rassokhina IV, Kondrakhin EA, Rossokhin AV, Kolbaev SN, Tihonova TB, Kh. Dzhafarov M, Schetinina MA, Chernoburova EI, Vasileva EV, Dmitrenok AS, Kovalev GI, Sharonova IN, Zavarzin IV. Synthesis and Evaluation of Avermectin–Imidazo[1,2-a]pyridine Hybrids as Potent GABAA Receptor Modulators. Bioorg Chem 2022; 127:105904. [DOI: 10.1016/j.bioorg.2022.105904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 01/08/2023]
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20
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Dinardo F, Maggiolino A, Martinello T, Liuzzi G, Elia G, Zizzo N, Latronico T, Mastrangelo F, Dahl G, De Palo P. Oral administration of nucleotides in calves: Effects on oxidative status, immune response, and intestinal mucosa development. J Dairy Sci 2022; 105:4393-4409. [DOI: 10.3168/jds.2021-20804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 01/10/2022] [Indexed: 01/21/2023]
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21
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Reinwald H, Alvincz J, Salinas G, Schäfers C, Hollert H, Eilebrecht S. Toxicogenomic profiling after sublethal exposure to nerve- and muscle-targeting insecticides reveals cardiac and neuronal developmental effects in zebrafish embryos. CHEMOSPHERE 2022; 291:132746. [PMID: 34748799 DOI: 10.1016/j.chemosphere.2021.132746] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/15/2021] [Accepted: 10/29/2021] [Indexed: 06/13/2023]
Abstract
For specific primary modes of action (MoA) in environmental non-target organisms, EU legislation restricts the usage of active substances of pesticides or biocides. Corresponding regulatory hazard assessments are costly, time consuming and require large numbers of non-human animal studies. Currently, predictive toxicology of development compounds relies on their chemical structure and provides little insights into toxicity mechanisms that precede adverse effects. Using the zebrafish embryo model, we characterized transcriptomic responses to a range of sublethal concentrations of six nerve- and muscle-targeting insecticides with different MoA (abamectin, carbaryl, chlorpyrifos, fipronil, imidacloprid & methoxychlor). Our aim was to identify affected biological processes and suitable biomarker candidates for MoA-specific signatures. Abamectin showed the most divergent signature among the tested insecticides, linked to lipid metabolic processes. Differentially expressed genes (DEGs) after imidacloprid exposure were primarily associated with immune system and inflammation. In total, 222 early responsive genes to either MoA were identified, many related to three major processes: (1) cardiac muscle cell development and functioning (tcap, desma, bag3, hspb1, hspb8, flnca, myoz3a, mybpc2b, actc2, tnnt2c), (2) oxygen transport and hypoxic stress (alas2, hbbe1.1, hbbe1.3, hbbe2, hbae3, igfbp1a, hif1al) and (3) neuronal development and plasticity (npas4a, egr1, btg2, ier2a, vgf). The thyroidal function related gene dio3b was upregulated by chlorpyrifos and downregulated by higher abamectin concentrations. Important regulatory genes for cardiac muscle (tcap) and forebrain development (npas4a) were the most frequently ifferentially expressed across all insecticide treatments. We consider the identified gene sets as useful early warning biomarker candidates, i.e. for developmental toxicity targeting heart and brain in aquatic vertebrates. Our findings provide a better understanding about early molecular events in response to the analyzed MoA. Perceptively, this promotes the development for sensitive and informative biomarker-based in vitro assays for toxicological MoA prediction and AOP refinement, without the suffering of adult fish.
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Affiliation(s)
- Hannes Reinwald
- Fraunhofer Attract Eco'n'OMICs, Fraunhofer Institute for Molecular Biology and Applied Ecology, Schmallenberg, Germany; Department Evolutionary Ecology and Environmental Toxicology, Faculty Biological Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Julia Alvincz
- Fraunhofer Attract Eco'n'OMICs, Fraunhofer Institute for Molecular Biology and Applied Ecology, Schmallenberg, Germany
| | - Gabriela Salinas
- NGS-Services for Integrative Genomics, University of Göttingen, Göttingen, Germany
| | - Christoph Schäfers
- Department of Ecotoxicology, Fraunhofer Institute for Molecular Biology and Applied Ecology, Schmallenberg, Germany
| | - Henner Hollert
- Department Evolutionary Ecology and Environmental Toxicology, Faculty Biological Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Sebastian Eilebrecht
- Fraunhofer Attract Eco'n'OMICs, Fraunhofer Institute for Molecular Biology and Applied Ecology, Schmallenberg, Germany.
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22
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Chronic Effects of Fluoxetine on Danio rerio: A Biochemical and Behavioral Perspective. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12042256] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Fluoxetine is an antidepressant widely used to treat depressive and anxiety states. Due to its mode of action in the central nervous system (selective serotonin reuptake inhibitor (SSRI)), it becomes toxic to non-target organisms, leading to changes that are harmful to their survival. In this work, the effects of fluoxetine on juvenile zebrafish (Danio rerio) were evaluated, assessing biochemical (phase II biotransformation—glutathione S-transferase (GST), neurotransmission—acetylcholinesterase (ChE), energy metabolism—lactate dehydrogenase (LDH), and oxidative stress—glutathione peroxidase (GPx)) and behavior endpoints (swimming behavior, social behavior, and thigmotaxis) after 21 days exposure to 0 (control), 0.1, 1 and 10 µg/L. Biochemically, although chronic exposure did not induce significant effects on neurotransmission and energy metabolism, GPx activity was decreased after exposure to 10 µg/L of fluoxetine. At a behavioral level, exploratory and social behavior was not affected. However, changes in the swimming pattern of exposed fish were observed in light and dark periods (decreased locomotor activity). Overall, the data show that juvenile fish chronically exposed to fluoxetine may exhibit behavioral changes, affecting their ability to respond to environmental stressors and the interaction with other fish.
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23
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Lozano IE, Piazza YG, Babay P, Sager E, de la Torre FR, Lo Nostro FL. Ivermectin: A multilevel approach to evaluate effects in Prochilodus lineatus (Valenciennes, 1836) (Characiformes, Prochilodontidae), an inland fishery species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149515. [PMID: 34392219 DOI: 10.1016/j.scitotenv.2021.149515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/23/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Ivermectin (IVM) is one of the most widely used antiparasitics worldwide. It is a potent and effective drug for treatment and prevention of internal and external parasitic infections of livestock and humans. IVM is excreted unchanged in manure of treated animals. Thus, residues of IVM may reach aquatic systems, affecting non-target organisms such as fish. Although the presence of IVM in aquatic environments has been reported, a multilevel approach (from cellular to behavioral responses) is necessary to determine the health of exposed organisms and the environmental risks associated. The aim of the present study was to investigate the response of the Neotropical fish Prochilodus lineatus, one of the main target species of South American freshwater fisheries, exposed to environmental concentrations of IVM: low (0.5 μg L-1) and high (1.5 μg L-1). Behavioral responses were assessed in juvenile fish and included water column use, routine swimming, total distance travelled, total activity time and Maximum swimming speed achieved during the escape response. Biochemical/oxidative stress responses assessed included brain acetylcholinesterase (AChE), catalase (CAT) and glutathione S-transferase (GST) activities; total antioxidant competence against peroxyl radicals (ACAP) and lipid oxidative damage (TBARs). Hematological biomarker responses included blood glucose levels, hematocrit, hemoglobin concentration, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and mean corpuscular volume. Condition factor and hepatosomatic index were also calculated. The lowest IVM concentration caused a significant decrease in GST activity and maximum swimming speed during the escape response. Multivariate analysis with biochemical/stress and behavioral data revealed overall effects of IVM treatments. This multilevel analysis shows detrimental effects related to swimming behavior and predator avoidance which could affect population size and size-structure of P. lineatus. To our knowledge this is the first attempt to assess the effects of IVM on Neotropical fishes using an integrative approach based on biomarkers from different levels of biological organization.
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Affiliation(s)
- Ismael Esteban Lozano
- Laboratorio de Ecotoxicología Acuática, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA), Argentina
| | - Yanina Grisel Piazza
- Laboratorio de Ecotoxicología Acuática, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA), Argentina
| | - Paola Babay
- Gerencia Química, Comisión Nacional de Energía Atómica (CNEA), Buenos Aires, Argentina
| | - Emanuel Sager
- Grupo de Estudios de Contaminación Antrópica en Peces (GECAP), Instituto de Ecología y Desarrollo Sustentable, Departamento de Ciencias Básicas, CONICET-Universidad Nacional de Luján, Argentina
| | - Fernando Román de la Torre
- Grupo de Estudios de Contaminación Antrópica en Peces (GECAP), Instituto de Ecología y Desarrollo Sustentable, Departamento de Ciencias Básicas, CONICET-Universidad Nacional de Luján, Argentina
| | - Fabiana Laura Lo Nostro
- Laboratorio de Ecotoxicología Acuática, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA), Argentina; Laboratorio de Ecotoxicología Acuática, Departamento de Biodiversidad y Biología Experimental (DBBE), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina.
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24
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Nunes B, Pinheiro D, Gomes A. Effect of sublethal concentrations of the antiparasitic ivermectin on the polychaeta species Hediste diversicolor: biochemical and behavioral responses. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1841-1853. [PMID: 34224071 DOI: 10.1007/s10646-021-02444-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
Pharmaceutical drugs have emerged as major micropollutants in aquatic ecosystems. Their presence has been systematically reported in monitoring surveys, and their wide distribution and constant presence in the wild is a direct consequence of their massive use, in both human and veterinary therapeutics. Drugs used to treat parasitic infections in livestock are major contaminants, given the amounts in which they are administered, and reach the aquatic compartment in high amounts, where they may affect non target species. Some of these drugs are prone to find their final deposit in sediments of estuarine areas, exerting their toxic effects preferentially at these locations. Sediment dwelling organisms of coastal areas, such as polychaetas, are especially prone to have their major physiological functions compromised after being exposed to pharmaceutical drugs. Ivermectin is one of the most used antiparasitic drugs, and its effects are not limited to biochemical traits, but also behavioral features may be compromised considering their neurotoxic actions. Despite these putative effects, little is known about their toxicity on polychaetas. The present study aimed to characterize the toxicity of realistic levels of ivermectin on the polychaeta Hediste diversicolor, in biochemical and behavioral terms. The obtained results showed that low levels of ivermectin are capable of causing significant disturbances in mobility and burrowing activity of exposed worms, as well as alterations of metabolic and anti-oxidant defense efficacy of exposed animals, suggesting that its environmental presence may mean a major environmental concern.
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Affiliation(s)
- B Nunes
- Departamento de Biologia da Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
- Centro de Estudos do Ambiente e do Mar (CESAM), Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
| | - D Pinheiro
- Departamento de Física da Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - A Gomes
- Departamento de Biologia da Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
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25
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Mauro M, Lazzara V, Arizza V, Luparello C, Ferrantelli V, Cammilleri G, Inguglia L, Vazzana M. Human Drug Pollution in the Aquatic System: The Biochemical Responses of Danio rerio Adults. BIOLOGY 2021; 10:biology10101064. [PMID: 34681162 PMCID: PMC8533377 DOI: 10.3390/biology10101064] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 12/26/2022]
Abstract
Simple Summary The release of medicinal products for human use in the aquatic environment is now a serious problem, and can be fatal for the organisms that live there. Danio rerio is a freshwater fish that provides the possibility to study the effects of these pollutants on the health of aquatic organisms. The results of the various existing scientific studies are scarce and conflicting. Here, we review the scientific studies that have analyzed these effects, highlighting that the impacts of drugs are evident in the biochemical responses of these animals. Abstract To date, drug pollution in aquatic systems is an urgent issue, and Danio rerio is a model organism to study the toxicological effects of environmental pollutants. The scientific literature has analyzed the effect of human drug pollution on the biochemical responses in the tissues of D. rerio adults. However, the information is still scarce and conflicting, making it difficult to understand its real impact. The scientific studies are not consistent with each other and, until now, no one has grouped their results to create a baseline of knowledge of the possible impacts. In this review, the analysis of literature data highlights that the effects of drugs on adult zebrafishes depend on various factors, such as the tissue analyzed, the drug concentration and the sex of the individuals. Furthermore, the most influenced biochemical responses concern enzymes (e.g., antioxidants and hydrolase enzymes) and total protein and hormonal levels. Pinpointing the situation to date would improve the understanding of the chronic effects of human drug pollution, helping both to reduce it in the aquatic systems and then to draw up regulations to control this type of pollution.
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Affiliation(s)
- Manuela Mauro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90128 Palermo, Italy; (V.L.); (V.A.); (C.L.); (L.I.); (M.V.)
- Correspondence: (M.M.); (V.F.)
| | - Valentina Lazzara
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90128 Palermo, Italy; (V.L.); (V.A.); (C.L.); (L.I.); (M.V.)
| | - Vincenzo Arizza
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90128 Palermo, Italy; (V.L.); (V.A.); (C.L.); (L.I.); (M.V.)
| | - Claudio Luparello
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90128 Palermo, Italy; (V.L.); (V.A.); (C.L.); (L.I.); (M.V.)
| | - Vincenzo Ferrantelli
- Istituto Zooprofilattico Sperimentale della Sicilia A. Mirri, 90129 Palermo, Italy;
- Correspondence: (M.M.); (V.F.)
| | - Gaetano Cammilleri
- Istituto Zooprofilattico Sperimentale della Sicilia A. Mirri, 90129 Palermo, Italy;
| | - Luigi Inguglia
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90128 Palermo, Italy; (V.L.); (V.A.); (C.L.); (L.I.); (M.V.)
| | - Mirella Vazzana
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90128 Palermo, Italy; (V.L.); (V.A.); (C.L.); (L.I.); (M.V.)
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26
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Muniz MS, Halbach K, Alves Araruna IC, Martins RX, Seiwert B, Lechtenfeld O, Reemtsma T, Farias D. Moxidectin toxicity to zebrafish embryos: Bioaccumulation and biomarker responses. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 283:117096. [PMID: 33866217 DOI: 10.1016/j.envpol.2021.117096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/14/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Moxidectin is an antiparasitic drug belonging to the class of the macrocyclic lactones, subgroup mylbemicins. It is used worldwide in veterinary practice, but little is known about its potential environmental risks. Thus, we used the zebrafish embryo as a model system to study the potential effects of moxidectin on aquatic non-target organisms. The analyses were performed in two experimental sets: (1) acute toxicity and apical endpoints were characterized, with biomarker assays providing information on the activity levels of catalase (CAT), glutathione S-transferase (GST), lactate dehydrogenase (LDH), and acetylcholinesterase (AChE); and (2) internal concentration and spatial distribution of moxidectin were determined using ultraperformance liquid chromatography quadrupole-time-of-flight mass spectrometry (UPLC-QToF-MS) and matrix-assisted laser desorption/ionization-MS imaging (MALDI-MSi). The acute toxicity to zebrafish embryos (96 hpf) appeared mainly as a decrease in hatching rates (EC50 = 20.75 μg/L). It also altered the enzymatic activity of biomarker enzymes related to xenobiotic processing, anaerobic metabolism, and oxidative stress (GST, LDH, and CAT, respectively) and strongly accumulated in the embryos, as internal concentrations were 4 orders of magnitude higher than those detected in exposure solutions. MALDI-MSi revealed accumulations of the drug mainly in the head and eyes of the embryos (72 and 96 hpf). Thus, our results show that exposure to moxidectin decreases hatching success by 96 h and alters biochemical parameters in the early life stages of zebrafish while accumulating in the head and eye regions of the animals, demonstrating the need to prioritize this compound for environmental studies.
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Affiliation(s)
- Marta Silva Muniz
- Laboratory for Risk Assessment of Novel Technologies (LabRisk), Department of Molecular Biology, Federal University of Paraiba, João Pessoa, Brazil
| | - Katharina Halbach
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Igor Cauê Alves Araruna
- Laboratory for Risk Assessment of Novel Technologies (LabRisk), Department of Molecular Biology, Federal University of Paraiba, João Pessoa, Brazil
| | - Rafael Xavier Martins
- Laboratory for Risk Assessment of Novel Technologies (LabRisk), Department of Molecular Biology, Federal University of Paraiba, João Pessoa, Brazil
| | - Bettina Seiwert
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Oliver Lechtenfeld
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Thorsten Reemtsma
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany; Institute of Analytical Chemistry, University of Leipzig, Leipzig, Germany
| | - Davi Farias
- Laboratory for Risk Assessment of Novel Technologies (LabRisk), Department of Molecular Biology, Federal University of Paraiba, João Pessoa, Brazil.
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27
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Gonçalves SF, Silva ARR, Pavlaki MD, Morgado RG, Loureiro S. Site-specific hazard evaluation for improved groundwater risk assessment. CHEMOSPHERE 2021; 274:129742. [PMID: 33581394 DOI: 10.1016/j.chemosphere.2021.129742] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/12/2021] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
Groundwater represents one of the most important natural water resources worldwide. Contamination is a key driver in sustaining water quality to populations and the environment. Therefore, it is crucial to look at contamination and potential effects. Within the WaterJPI project "We-Need - WatEr NEEDs, Availability, Quality and Sustainability", the Cremona and the Bologna Aquifers (Italy) were chosen as case studies since both aquifers represent two major Italian water resources of the Emilia-Romagna region. Aiming for a site-specific groundwater hazard assessment, the groundwaters from the Cremona and Bologna aquifers were simulated by preparing synthetic waters, CSW and BSW, respectively. Boron (as boric acid), fluoride (as sodium fluoride), and ammonium (as ammonium hydroxide), detected in the aquifers, were used to assess potential negative impacts on groundwater systems using aquatic organisms. Acute toxicity tests with Daphnia magna and Fish Embryo Toxicity Tests (FET) with Danio rerio were performed in the CSW and BSW synthetic waters and respective culture media, and toxicity was assessed for each organism. Boron, fluoride and ammonium had no ecological hazard effects at the concentrations detected in the groundwaters. Besides, a crucial result from this study regards the use of different media when addressing toxicity assessment. In this case, it was observed that toxicity was media and organism dependent. Therefore, adapting testing protocols for higher relevance should be considered for site-specific hazard assessment.
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Affiliation(s)
- Sandra F Gonçalves
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
| | - Ana Rita R Silva
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
| | - Maria D Pavlaki
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal.
| | - Rui G Morgado
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
| | - Susana Loureiro
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
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28
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Almeida AR, Tacão M, Soares J, Domingues I, Henriques I. Tetracycline-Resistant Bacteria Selected from Water and Zebrafish after Antibiotic Exposure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18063218. [PMID: 33804606 PMCID: PMC8003806 DOI: 10.3390/ijerph18063218] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/14/2021] [Accepted: 03/17/2021] [Indexed: 12/12/2022]
Abstract
The emergence of antibiotic-resistant pathogens due to worldwide antibiotic use is raising concern in several settings, including aquaculture. In this work, the selection of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) was evaluated after exposure of zebrafish to oxytetracycline (OTC) for two months, followed by a recovery period. The selection of ARB in water and fish was determined using selective media. The abundance of tetA genes was estimated through qPCR. Higher prevalence of ARB was measured in all samples exposed to the antibiotic when compared to control samples, although statistical significance was only achieved five days after exposure. Isolates recovered from samples exposed to the antibiotic were affiliated with Pseudomonas and Stenotrophomonas. Various antibiotic susceptibility profiles were detected and 37% of the isolates displayed multidrug resistance (MDR). The selection of the tetA gene was confirmed by qPCR at the highest OTC concentration tested. Two MDR isolates, tested using zebrafish embryos, caused significant mortality, indicating a potential impact on fish health and survival. Overall, our work highlights the potential impact of antibiotic contamination in the selection of potential pathogenic ARB and ARGS.
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Affiliation(s)
- Ana Rita Almeida
- CESAM & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (M.T.); (J.S.); (I.D.)
- Correspondence:
| | - Marta Tacão
- CESAM & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (M.T.); (J.S.); (I.D.)
| | - Joana Soares
- CESAM & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (M.T.); (J.S.); (I.D.)
| | - Inês Domingues
- CESAM & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (M.T.); (J.S.); (I.D.)
| | - Isabel Henriques
- University of Coimbra, CESAM & Department of Life Sciences, Faculty of Science and Technology, Calçada Martins de Freitas, 3000-456 Coimbra, Portugal;
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29
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Almeida AR, Domingues I, Henriques I. Zebrafish and water microbiome recovery after oxytetracycline exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:116371. [PMID: 33433346 DOI: 10.1016/j.envpol.2020.116371] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 12/14/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
Oxytetracycline (OTC) is a broad-spectrum antibiotic widely used in aquaculture, resulting in contamination of aquatic environments. In a previous study, we observed significant effects of OTC sublethal concentrations in zebrafish, its microbiome and the water bacterial community. Here we assessed the extent to which these effects are reversible after a recovery period. Zebrafish adults were exposed to OTC (10,000 μg/L) via water exposure. Effects were analyzed at 5 days (5 dE) and 2 months (2 mE) of exposure and recovery was assessed at 5 days (5dPE) and 1 month (1mPE) after exposure Impacts were observed in fish energetic reserves and in fish and water microbiomes structure, being significant even at 5 dE. At energetic reserves level, the effect in cellular energy allocation (CEA) was dependent on the exposure time: initially CEA increased while after 2 mE CEA decreased. At microbiome level, diversity was not affected but the richness of the water microbiome significantly decreased at 2 mE. Regarding the post-exposure period, at CEA level, organisms seem to recover. In water and gut microbiomes OTC effects were also attenuated after exposure ceases, indicating a recovery. Even so, the structure of water exposed community remained significantly different towards the control, while richness of this community significantly increased at 1mPE. During exposure the relative abundance of 11 and 16 genera was significantly affected in the gut and water microbiomes, respectively, though these numbers decreased to 4 and 8 genera in the post-exposure period. At functional level during exposure 12 and 13 pathways were predicted to be affected in zebrafish gut and water microbiomes respectively, while post-exposure few pathways remained significantly affected. Hence, our results suggest a recovery of the fish fitness as well as of the water and intestine microbiomes after exposure ceases. Even so, some of the effects caused by OTC remain significant after this recovery period.
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Affiliation(s)
- Ana Rita Almeida
- CESAM & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Inês Domingues
- CESAM & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Isabel Henriques
- University of Coimbra, CESAM & Department of Life Sciences, Faculty of Science and Technology, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
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30
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Minski VT, Garbinato C, Thiel N, Siebel AM. Erythromycin in the aquatic environment: deleterious effects on the initial development of zebrafish. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2021; 84:56-66. [PMID: 33073732 DOI: 10.1080/15287394.2020.1834477] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Due to the large volume of erythromycin continuously reaching waterbodies and its high persistence, this antibiotic drug has been detected in the aquatic environment at elevated concentrations. Although the problem of the presence of erythromycin in the environment is evident due to its influence in development of antimicrobial resistance, the toxicological consequences on non-target organisms remain to be determined. There are no apparent data on the impact of environmentally relevant concentrations of erythromycin on developing fish. Data on toxic effects during development are essential for evaluation of environmental risk to organisms. Therefore, the aim of this study was to investigate the effects of exposure to erythromycin on certain parameters including hatchability, survival rate, heart rate, and behavior in developing zebrafish. Zebrafish were exposed to a range of environmentally relevant concentrations of antibiotic (0.001, 0.01, 0.1, 1 μg/L) and one concentration 10-fold higher (10 μg/L). Exposure to erythromycin at 0.1 μg/L delayed hatching and decreased survival rate. Exposure to all tested concentrations increased heart rate. Further, exposure to erythromycin at 1 or 10 μg/L enhanced swimming activity. Our results indicated that erythromycin present in the aquatic environment might lead to disabling consequences in developing fish organisms and subsequently may result in ecological imbalance in the natural environment.
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Affiliation(s)
- Valeska Toffolo Minski
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação Em Ciências Ambientais, Universidade Comunitária da Região de Chapecó , Chapecó, Brazil
| | - Cristiane Garbinato
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação Em Ciências Ambientais, Universidade Comunitária da Região de Chapecó , Chapecó, Brazil
| | - Nathana Thiel
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação Em Ciências Ambientais, Universidade Comunitária da Região de Chapecó , Chapecó, Brazil
| | - Anna Maria Siebel
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação Em Ciências Ambientais, Universidade Comunitária da Região de Chapecó , Chapecó, Brazil
- Laboratório de Genética e Ecotoxicologia Molecular, Curso de Ciências Biológicas, Universidade Comunitária da Região de Chapecó , Chapecó, Brazil
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de Farias NO, Oliveira R, Moretti PNS, E Pinto JM, Oliveira AC, Santos VL, Rocha PS, Andrade TS, Grisolia CK. Fluoxetine chronic exposure affects growth, behavior and tissue structure of zebrafish. Comp Biochem Physiol C Toxicol Pharmacol 2020; 237:108836. [PMID: 32585365 DOI: 10.1016/j.cbpc.2020.108836] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 06/01/2020] [Accepted: 06/19/2020] [Indexed: 01/04/2023]
Abstract
Fluoxetine (FLX) is among the top 100 pharmaceutical prescribed annually worldwide and consequently is often detected in wastewater treatment plant effluent and surface waters, in concentrations up to 2.7 and 0.33 μg/L, respectively. Despite the presence of FLX in surface waters, little is known about its chronic effects in fish. Thus, this study aimed at investigating the chronic toxicity of FLX to Danio rerio adults. Rate of weight gain, behavior (feeding and swimming activity) and tissue organization (liver and intestine) were evaluated, after 30 days exposure. A lower rate of weight gain was observed at 100 μg/L FLX. The food intake time decreased, showing a decrease in fish appetite. The preference for the upper aquarium layer was observed at 10 and 100 μg/L of FLX, indicating an inhibition of the stress level (anxiolytic effect). Mild to moderate damage of hepatic tissue and a decrease epithelium height and increase in villus height of intestine were observed in fish exposed to concentrations as low as 0.01 μg/L. Based on obtained results, chronic exposure of fish to FLX could affect swimming and feeding behavior and alter morphological structure of liver and intestine tissues at environmental levels.
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Affiliation(s)
- Natália Oliveira de Farias
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Biologia, Universidade de Brasília, Asa Norte, 70910-900 Brasília, Distrito Federal, Brazil; Faculdade de Tecnologia, Universidade Estadual de Campinas, UNICAMP, 13484-332 Limeira, São Paulo, Brazil; Programa de Pós-graduação em Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, IB - UNICAMP, 13083-862 Campinas, São Paulo, Brazil
| | - Rhaul Oliveira
- Faculdade de Tecnologia, Universidade Estadual de Campinas, UNICAMP, 13484-332 Limeira, São Paulo, Brazil.
| | - Patrícia Natália Silva Moretti
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Biologia, Universidade de Brasília, Asa Norte, 70910-900 Brasília, Distrito Federal, Brazil.
| | - Joana Mona E Pinto
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Biologia, Universidade de Brasília, Asa Norte, 70910-900 Brasília, Distrito Federal, Brazil
| | - Ana Clara Oliveira
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Biologia, Universidade de Brasília, Asa Norte, 70910-900 Brasília, Distrito Federal, Brazil
| | - Viviani Lara Santos
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Biologia, Universidade de Brasília, Asa Norte, 70910-900 Brasília, Distrito Federal, Brazil
| | - Paula Suares Rocha
- Faculdade de Tecnologia, Universidade Estadual de Campinas, UNICAMP, 13484-332 Limeira, São Paulo, Brazil
| | | | - Cesar Koppe Grisolia
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Biologia, Universidade de Brasília, Asa Norte, 70910-900 Brasília, Distrito Federal, Brazil.
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Garbinato C, Schneider SE, Sachett A, Decui L, Conterato GM, Müller LG, Siebel AM. Exposure to ractopamine hydrochloride induces changes in heart rate and behavior in zebrafish embryos and larvae. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:21468-21475. [PMID: 32277412 DOI: 10.1007/s11356-020-08634-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Different veterinary drugs have been widely found in surface and groundwater, affecting non-target organisms. Ractopamine (RAC) is one of these drugs found in water bodies. It is a β-adrenergic agonist used as a feed additive to modulate the metabolism, redirect nutrients from the adipose tissue towards muscles, and increase protein synthesis in swine, cattle, and turkeys. RAC shows toxicological potential, but there is no data about its impacts on the development of non-target organisms, such as zebrafish (Danio rerio). In this study, we evaluated the effect of the exposure to this feed additive on critical parameters (hatching, survival, spontaneous movement, heart rate, and exploratory and locomotor behavior) in zebrafish embryos and larvae. The animals were exposed to RAC hydrochloride at 0.1, 0.2, 0.85, 8.5, and 85 μg/L. Zebrafish exposed to the drug showed increased heart rate at all tested concentrations and alterations on locomotion and exploratory behavior at 85 μg/L. No changes were observed in the survival, hatching rate and spontaneous movement. Our results suggest that RAC present in the environment can induce disabling effects on non-target organisms and elicit an ecological imbalance by increasing the animals' vulnerability to predation due to greater visibility.
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Affiliation(s)
- Cristiane Garbinato
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Chapecó, SC, 89809-900, Brazil
- Laboratório de Genética e Ecotoxicologia Molecular, Curso de Ciências Biológicas, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Chapecó, SC, 89809-900, Brazil
| | - Sabrina Ester Schneider
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Chapecó, SC, 89809-900, Brazil
- Laboratório de Genética e Ecotoxicologia Molecular, Curso de Ciências Biológicas, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Chapecó, SC, 89809-900, Brazil
| | - Adrieli Sachett
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Laura Decui
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Chapecó, SC, 89809-900, Brazil
- Laboratório de Genética e Ecotoxicologia Molecular, Curso de Ciências Biológicas, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Chapecó, SC, 89809-900, Brazil
| | - Greicy M Conterato
- Laboratório de Fisiologia da Reprodução Animal, Departamento de Agricultura, Biodiversidade e Floresta, Universidade Federal de Santa Catarina, Campus de Curitibanos, Curitibanos, SC, Brazil
| | - Liz Girardi Müller
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Chapecó, SC, 89809-900, Brazil
| | - Anna Maria Siebel
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Servidão Anjo da Guarda, 295-D, Chapecó, SC, 89809-900, Brazil.
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Gonçalves ÍFS, Souza TM, Vieira LR, Marchi FC, Nascimento AP, Farias DF. Toxicity testing of pesticides in zebrafish-a systematic review on chemicals and associated toxicological endpoints. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:10185-10204. [PMID: 32062774 DOI: 10.1007/s11356-020-07902-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
The use of zebrafish (Danio rerio) has arisen as a promising biological platform for toxicity testing of pesticides such as herbicides, insecticides, and fungicides. Therefore, it is relevant to assess the use of zebrafish in models of exposure to investigate the diversity of pesticide-associated toxicity endpoints which have been reported. Thus, this review aimed to assess the recent literature on the use of zebrafish in pesticide toxicity studies to capture data on the types of pesticide used, classes of pesticides, and zebrafish life stages associated with toxicity endpoints and phenotypic observations. A total of 352 articles published between September 2012 and May 2019 were curated. The results show an increased trend in the use of zebrafish for testing the toxicity of pesticides, with a great diversity of pesticides (203) and chemical classes (58) with different applications (41) being used. Furthermore, experimental outcomes could be clustered in 13 toxicity endpoints, mainly developmental toxicity, oxidative stress, and neurotoxicity. Organophosphorus, pyrethroid, azole, and triazine were the most studied classes of pesticides and associated with various toxicity endpoints. Studies frequently opted for early life stages (embryos and larvae). Although there is an evident lack of standardization of nomenclatures and phenotypic alterations, the information gathered here highlights associations between (classes of) pesticides and endpoints, which can be used to relate mechanisms of action specific to certain classes of chemicals.
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Affiliation(s)
- Íris Flávia Sousa Gonçalves
- Laboratory of Risk Assessment for Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, Campus I, CEP, João Pessoa, 58051-900, Brazil
- Post-Graduation Program in Biochemistry, Federal University of Ceara, Campus Pici, CEP, Fortaleza, 60440-900, Brazil
| | - Terezinha Maria Souza
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, 6229 ER, The Netherlands.
| | - Leonardo Rogério Vieira
- Post-Graduation Program in Biochemistry, Federal University of Ceara, Campus Pici, CEP, Fortaleza, 60440-900, Brazil
| | - Filipi Calbaizer Marchi
- Laboratory of Risk Assessment for Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, Campus I, CEP, João Pessoa, 58051-900, Brazil
| | - Adailton Pascoal Nascimento
- Laboratory of Risk Assessment for Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, Campus I, CEP, João Pessoa, 58051-900, Brazil
| | - Davi Felipe Farias
- Laboratory of Risk Assessment for Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, Campus I, CEP, João Pessoa, 58051-900, Brazil.
- Post-Graduation Program in Biochemistry, Federal University of Ceara, Campus Pici, CEP, Fortaleza, 60440-900, Brazil.
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Bevilaqua F, Sachett A, Chitolina R, Garbinato C, Gasparetto H, Marcon M, Mocelin R, Dallegrave E, Conterato G, Piato A, Siebel AM. A mixture of fipronil and fungicides induces alterations on behavioral and oxidative stress parameters in zebrafish. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:140-147. [PMID: 31865514 DOI: 10.1007/s10646-019-02146-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Pesticide commercial mixtures, including the insecticide fipronil and the fungicides pyraclostrobin and methyl-thiophanate, have been used in concomitant pest control, facilitating agricultural management. Their widespread use can lead to soil and water contamination and potentially induce damages in the ecosystem, producing toxic effects in non-target organisms. Despite their toxicological potential, their effects on behavioral and biochemical parameters are not well understood. Here we investigated the effects of the mixture of fipronil and fungicides (MFF) pyraclostrobin and methyl- thiophanate on behavioral and biochemical parameters of oxidative stress in adult zebrafish. Animals exposed to the highest MFF tested concentration showed a decrease in the total distance traveled and in the number of crossings in the different zones of the tank. Furthermore, animals exposed to highest MFF tested concentration spent more time in water surface. In addition, our data showed that the exposure to this preparation promoted a decrease in non-protein thiol content as well as in catalase activity. Finally, pesticide exposure induced an increase in the superoxide dismutase/catalase ratio. Our results indicate that alterations in behavioral and oxidative parameters are involved in MFF toxicity in zebrafish. The antioxidant mechanisms analyzed were altered in concentrations that did not affect zebrafish behavior. Therefore, the assessment of oxidative stress parameters in zebrafish brains could be very useful to detect the early effects of environmental exposure to the MFF.
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Affiliation(s)
- Fernanda Bevilaqua
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Adrieli Sachett
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Rafael Chitolina
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cristiane Garbinato
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Henrique Gasparetto
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Matheus Marcon
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ricieri Mocelin
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Eliane Dallegrave
- Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Greicy Conterato
- Laboratório de Fisiologia da Reprodução Animal, Departamento de Agricultura, Biodiversidade e Floresta, Universidade Federal de Santa Catarina, Campus de Curitibanos, Curitibanos, SC, Brazil
| | - Angelo Piato
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Anna M Siebel
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil.
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Correia D, Almeida AR, Santos J, Machado AL, Koba Ucun O, Žlábek V, Oliveira M, Domingues I. Behavioral effects in adult zebrafish after developmental exposure to carbaryl. CHEMOSPHERE 2019; 235:1022-1029. [PMID: 31561291 DOI: 10.1016/j.chemosphere.2019.07.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 06/10/2023]
Abstract
Chemical exposure during the early life stages of development may have long lasting effects on organisms that are rarely studied. The present work intended to evaluate the effect of embryonic exposure to the pesticide carbaryl on adult fish behavior. Zebrafish (Danio rerio) embryos were exposed, for 4 days, to sublethal concentrations of carbaryl (0.01, 0.1 and 1.0 mg/L) plus a control and then kept in standard cultivation conditions until adulthood. A battery of behavioral tests was then performed to assess anxiety-like behavior (locomotor activity, thigmotaxis and novel tank diving test), social behavior, and feeding. Developmental exposure of zebrafish to sublethal concentrations of carbaryl produced important behavioral alterations in the adulthood. Main effects included decreased locomotion/hypoactivity (increase in slow movements and decrease of medium and rapid movements), especially in the light periods. Moreover, spatial pattern also changed: while during dark periods control fish increased activity in the outer zone of the tank, this was not observed in exposed fish. Overall, this demonstrated the importance of life stage exposure, clearly demonstrating long lasting effects of a (chemical) stress event at embryonic stages. This data supports the need of considering this scenario in environmental risk evaluations. Further work should focus on the mechanistic effects of developmental disruption responsible for the effects observed.
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Affiliation(s)
- Daniela Correia
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Ana Rita Almeida
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Joana Santos
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Ana Luísa Machado
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Olga Koba Ucun
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany, 389 25, Czech Republic
| | - Vladimír Žlábek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany, 389 25, Czech Republic
| | - Miguel Oliveira
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Inês Domingues
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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de Campos RP, Chagas TQ, da Silva Alvarez TG, Mesak C, de Andrade Vieira JE, Paixão CFC, de Lima Rodrigues AS, de Menezes IPP, Malafaia G. Analysis of ZnO nanoparticle-induced changes in Oreochromis niloticus behavior as toxicity endpoint. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 682:561-571. [PMID: 31128370 DOI: 10.1016/j.scitotenv.2019.05.183] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 05/13/2019] [Indexed: 06/09/2023]
Abstract
The toxicity of zinc oxide nanoparticles (ZnO NPs) has been investigated in different animal models. However, concentrations tested in most studies are often much higher than the ones potentially identified in the environment. Therefore, such toxicity limits the application of these studies to evaluate ecotoxicological risks posed by these nanopollutants. Thus, the aim of the current study is to evaluate the impacts of ZnO NPs (at environmentally relevant concentrations - 760 μg/L and 76,000 μg/L, for 72 h) on the behavioral responses of Oreochromis niloticus (Nile tilapia) exposed to it. Results did not evidence harmful effects of NPs on animals' locomotor abilities (evaluated through open-field and light-dark transition tests), or anxiety-predictive behavior. On the other hand, Zn bioaccumulation in the body tissues of the analyzed tilapias was correlated to changes in eating behavior (motivated by ration pellets), as well as to deficits in antipredatory defensive behavior (under individual and collective conditions). Tilapia exposed to ZnO NPs recorded lower avoidance, flight and territorialist behavior rates when they were individually confronted with potential predators (Salminus brasiliensis). However, collectively exposed animals were unable to recognize their predators, as well as to differentiate them from artificial baits ("false predators"). The present study is the first to report biological impacts resulting from the short exposure of fish-group representatives to ZnO NPs. Thus, we believe that it may be relevant to improve the knowledge about ecotoxicological risks posed by these pollutants.
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Affiliation(s)
- Raphael Pires de Campos
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Thales Quintão Chagas
- Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | | | - Carlos Mesak
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | | | - Caroliny Fátima Chaves Paixão
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Ivandilson Pessoa Pinto de Menezes
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil.
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de Sousa FA, de Morais CR, Vieira JS, Maranho LS, Machado FL, Pereira S, Barbosa LC, Coelho HE, Campos CF, Bonetti AM. Genotoxicity and carcinogenicity of ivermectin and amoxicillin in vivo systems. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 70:103196. [PMID: 31152944 DOI: 10.1016/j.etap.2019.103196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 04/21/2019] [Accepted: 05/21/2019] [Indexed: 06/09/2023]
Abstract
Antiparasitic substances are chemicals used to control or kill endoparasites and ectoparasites. Based on the premise that Ivermectin (IVM) and Amoxicillin (AMX) are commonly considered in parasitic control in mammals, the present study aimed to evaluate the carcinogenic and genotoxic potential of different concentrations of IVM and AMX through the detection of epithelial tumor test in Drosophila melanogaster. Third-instar larvae descending from the cross between wts/TM3, Sb1 females and mwh/mwh males were treated with different concentrations of IVM (2.9, 5.8, 11.6 and 23.2 x 10-17 mM) or AMX (1.37, 2.74, 5.48 and 10.9 x 10-16mM). The results revealed that IVM increased the frequency of epithelial tumor in D. melanogaster considering all evaluated concentrations, while AMX showed no carcinogenic effect. Furthermore, the Micronucleus (MN) test in Tradescantia pallida was used to evaluate the genotoxic effect of IVM and AMX. T. pallida individuals were exposed for 8 hours at different concentrations of IVM (5.71, 11.42, 22.84 and 45.68 x 10-5mM) or AMX (5.13, 10.26, 20.52 and 41.05 x 10-3mM). Findings showed an increase in the frequency of micronuclei in T. pallida treated with 11.42, 22.84 and 45.68 x 10-5mM of IVM. We conclude that chronic exposure to IVM is directly associated with events resulting from genetic instability (genotoxicity and carcinogenicity). On the other hand, AMX was neither carcinogenic nor genotoxic for D. melanogaster and T. pallida.
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Affiliation(s)
- Francielle Aparecida de Sousa
- Department of Genetics, University Center of Cerrado Patrocínio, Avenida Líria Terezinha Lassi Capuano, 466, 38747-792, Patrocínio, Minas Gerais, Brazil
| | - Cássio Resende de Morais
- Institute of Biotechnology, Federal University of Uberlândia, Campus Umuarama, 38900-402, Uberlândia, Minas Gerais, Brazil.
| | - Jéssica Soares Vieira
- Department of Cell Biology, Carmelitana Foundation Mário Palmério, 38500-000, Monte Carmelo, Minas Gerais, Brazil
| | - Lavínia Sales Maranho
- Department of Genetics, University Center of Cerrado Patrocínio, Avenida Líria Terezinha Lassi Capuano, 466, 38747-792, Patrocínio, Minas Gerais, Brazil
| | - Francielli Lara Machado
- Department of Genetics, University Center of Cerrado Patrocínio, Avenida Líria Terezinha Lassi Capuano, 466, 38747-792, Patrocínio, Minas Gerais, Brazil
| | - Samanta Pereira
- Department of Genetics, University Center of Cerrado Patrocínio, Avenida Líria Terezinha Lassi Capuano, 466, 38747-792, Patrocínio, Minas Gerais, Brazil
| | - Lilian Cristina Barbosa
- Department of Genetics, University Center of Cerrado Patrocínio, Avenida Líria Terezinha Lassi Capuano, 466, 38747-792, Patrocínio, Minas Gerais, Brazil
| | - Humberto Eustáquio Coelho
- Department of Animal Pathology, University of Uberaba, Avenida Nenê Sabino, 1801 - Bairro Universitário, 38055-500, Uberaba, Minas Gerais, Brazil
| | - Carlos Fernando Campos
- Institute of Biotechnology, Federal University of Uberlândia, Campus Umuarama, 38900-402, Uberlândia, Minas Gerais, Brazil
| | - Ana Maria Bonetti
- Institute of Biotechnology, Federal University of Uberlândia, Campus Umuarama, 38900-402, Uberlândia, Minas Gerais, Brazil
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Serafini S, de Freitas Souza C, Baldissera MD, Baldisserotto B, Segat JC, Baretta D, Zanella R, Schafer da Silva A. Fish exposed to water contaminated with eprinomectin show inhibition of the activities of AChE and Na +/K +-ATPase in the brain, and changes in natural behavior. CHEMOSPHERE 2019; 223:124-130. [PMID: 30772591 DOI: 10.1016/j.chemosphere.2019.02.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/05/2019] [Accepted: 02/06/2019] [Indexed: 06/09/2023]
Abstract
The objective of this study was to evaluate whether antiparasitic eprinomectin may be an environmental contaminant in water compartment in low concentrations, negatively affecting neurotransmission and, consequently, the natural behavior of the jundiá (Rhamdia quelen). Fish were randomly allocated in tanks and exposed for 24 and 48 h to eprinomectin concentrations in water [0.0 (Control), 1.124 (T1), 1.809 (T2) and 3.976 (T3) μg L-1], followed by 48 h of recovery in eprinomectin-free water, in order to evaluate the behavioral parameters, levels of reactive oxygen species (ROS) in the brain, as well as cerebral enzymatic activities of acetylcholinesterase (AChE) and of the sodium-potassium ATPase pump (Na+/K+-ATPase). Especially at the two highest concentrations of eprinomectin (T2 and T3), the fish showed alterations in natural behavior, particularly hyperlocomotion and longer time on the surface. Furthermore, at these same concentrations, cerebral ROS levels increased and cerebral AChE activity decreased. At the highest concentration (T3) cerebral Na+/K+-ATPase activity was reduced. Increased ROS and impairment of AChE and Na+/K+-ATPase enzymes in the brain may have contributed directly to behavioral changes, due to neuronal damage and synapse impairment. Even after 48 h in water without eprinomectin, behavioral changes and neurotoxic effects were observed in fish, suggesting residual effects of the antiparasitic. In conclusion, eprinomectin even in low concentrations may be a hazardous environmental contaminant for aquatic organisms, as it causes brain damage and affects the natural behavior of fish.
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Affiliation(s)
- Suélen Serafini
- Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil
| | - Carine de Freitas Souza
- Graduate Program of Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | | | - Bernardo Baldisserotto
- Graduate Program of Pharmacology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Julia Corá Segat
- Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil
| | - Dilmar Baretta
- Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil; Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil.
| | - Renato Zanella
- Department of Chemistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Aleksandro Schafer da Silva
- Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil; Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil.
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Almeida AR, Tacão M, Machado AL, Golovko O, Zlabek V, Domingues I, Henriques I. Long-term effects of oxytetracycline exposure in zebrafish: A multi-level perspective. CHEMOSPHERE 2019; 222:333-344. [PMID: 30708167 DOI: 10.1016/j.chemosphere.2019.01.147] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/23/2019] [Accepted: 01/25/2019] [Indexed: 05/07/2023]
Abstract
Oxytetracycline (OTC) is a broad-spectrum antibiotic widely used in livestock production. Like many other pharmaceuticals, OTC is not completely metabolized by the organism and thus, increasing amounts of the compound are being detected in the aquatic environment. The assessment of the environmental risk of pharmaceuticals is hindered by their very low concentrations and specific modes of action and thus relevant exposure scenarios and sensitive endpoints are needed. Thus, this work aimed to study the long-term effect of OTC exposure in zebrafish (at behavior and biochemical levels) and associated bacterial communities (fish gut and water bacterial communities). Results revealed that at behavioral level, boldness increase (manifested by increased exploratory behavior of a new environment) was observed in fish exposed to low OTC concentrations. Moreover, changes in fish swimming pattern were observed in light periods (increased stress response: hyperactivity and freezing) probably due to photo-sensibility conferred by OTC exposure. Effects at biochemical level suggest that long-term exposure to OTC interfere with cellular energy allocation mainly by reducing lipids levels and increasing energy consumption. Moreover, evidences of oxidative damage were also observed (reduced levels of TG, GST and CAT). The analysis of water and gut microbiome revealed changes in the structure and diversity of bacterial communities potentially leading to changes in communities' biological function. Some of the effects were observed at the lowest concentration tested, 0.1 μg/L which is a concentration already detected in the environment and thus clearly demonstrating the need of a serious ecotoxicological assessment of OTC effects on non-target organisms.
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Affiliation(s)
- Ana Rita Almeida
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Marta Tacão
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ana Luísa Machado
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Oksana Golovko
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Vladimir Zlabek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Inês Domingues
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Isabel Henriques
- CESAM & Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Calçada Martins de Freitas, 3000-456 Coimbra, Portugal
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40
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da Silva Santos N, Oliveira R, Lisboa CA, Mona E Pinto J, Sousa-Moura D, Camargo NS, Perillo V, Oliveira M, Grisolia CK, Domingues I. Chronic effects of carbamazepine on zebrafish: Behavioral, reproductive and biochemical endpoints. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 164:297-304. [PMID: 30125776 DOI: 10.1016/j.ecoenv.2018.08.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/19/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
Carbamazepine (Cbz), one of the most prescribed pharmaceuticals in the world is often detected in surface waters and sediments. However, few studies addressed its chronic effects in fish. In the present study, Danio rerio adults were exposed for 63 days to Cbz (0 - control, 10 μg L-1 - concentration found in effluents, and 10,000 μg L-1 - 5% of LC50 at 72 h). Assessed endpoints were: feeding behavior, growth rate, number of eggs produced and their viability, histological alterations in female gonads, and biochemical biomarkers associated with antioxidant defenses (catalase - CAT, and glutathione S-transferase - GST activities), neurotransmission (acetylcholinesterase activity - AChE) and metabolism (lactate dehydrogenase - LDH). Cbz exposure increased the total time for food intake but did not affect D. rerio growth. Although the total number of eggs was not affected by Cbz exposure, the eggs viability was significantly impaired. Exposure to Cbz caused alterations in the female gonads follicular stages. In terms of biochemical endpoints, CAT activity in liver and gills, was sensitive to the pharmaceutical exposure presenting a decreased activity. AChE activity was induced in the head (both concentrations) and muscle (10,000 μg L-1). GST activity was increased in gills (both concentrations) but inhibited in the intestine. Concerning LDH, enzymatic activity was increased in the liver and decreased in muscle and gills. Several of the above-mentioned effects can be directly linked with effects at population level (e.g. feeding behavior) and occurred at environmental concentrations (the lowest concentration tested), thus serious concerns regarding risks posed by Cbz residues to fish populations arise with this study.
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Affiliation(s)
- Niedja da Silva Santos
- Departamento de Biologia e CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Rhaul Oliveira
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, 70910-900 Brasília, Distrito Federal, Brasil; Faculdade de Tecnologia, Universidade Estadual de Campinas, UNICAMP, 13484-332 Limeira, São Paulo, Brazil; Programa de Pós-graduação em Toxicologia e Análises Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, FCF - USP, 05508-000 São Paulo, Brazil
| | - Carolina Almeida Lisboa
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, 70910-900 Brasília, Distrito Federal, Brasil
| | - Joana Mona E Pinto
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, 70910-900 Brasília, Distrito Federal, Brasil
| | - Diego Sousa-Moura
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, 70910-900 Brasília, Distrito Federal, Brasil
| | - Níchollas Serafim Camargo
- Laboratório de Nanobiotecnologia, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, AsaNorte, 70910-900 Brasília, Distrito Federal, Brazil
| | - Vitória Perillo
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, 70910-900 Brasília, Distrito Federal, Brasil
| | - Miguel Oliveira
- Departamento de Biologia e CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Cesar Koppe Grisolia
- Laboratório de Genética Toxicológica, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, 70910-900 Brasília, Distrito Federal, Brasil
| | - Inês Domingues
- Departamento de Biologia e CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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Sanches ALM, Daam MA, Freitas EC, Godoy AA, Meireles G, Almeida AR, Domingues I, Espíndola ELG. Lethal and sublethal toxicity of abamectin and difenoconazole (individually and in mixture) to early life stages of zebrafish. CHEMOSPHERE 2018; 210:531-538. [PMID: 30029145 DOI: 10.1016/j.chemosphere.2018.07.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
In recent years, the need for the development of alternative test methods for the conventional acute fish toxicity test (AFT) with adult fish has often been discussed. In addition, concerns have been raised on the potential risks related with environmentally realistic pesticide mixtures since risk evaluations have traditionally been based on individual pesticides. The insecticide/acaricide abamectin and the fungicide difenoconazole are the main pesticides that are intensively used in Brazilian strawberry crop and are hence likely to occur simultaneously in edge-of-field waterbodies. The aim of the present study was therefore to evaluate the lethal and sublethal toxicity of single and mixture exposures of these pesticides to zebrafish early life stages (embryos and juveniles). By comparing the derived toxicity data of the individual compounds with that previously determined for zebrafish adults, the order of life stage sensitivity was juvenile > adult > embryo. The pesticide mixture revealed a dose-level dependent deviation of the independent action model, with antagonism at low dose levels and synergism at high dose levels. Sublethal parameters (especially those related with locomotion) were considerably more sensitive than lethality. Subsequently, the inclusion of sublethal parameters may greatly improve the sensitivity of FET tests and hence its suitability as a substitution of adult fish testing in risk assessment evaluations.
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Affiliation(s)
- Ana Letícia Madeira Sanches
- NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil.
| | - Michiel Adriaan Daam
- CENSE, Department of Environmental Sciences and Engineering, Faculty of Sciences and Technology, New University of Lisbon, Quinta da Torre, 2829-516 Caparica, Portugal
| | - Emanuela Cristina Freitas
- NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
| | - Aline Andrade Godoy
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Gabriela Meireles
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, 14040-903 Ribeirão Preto, São Paulo, Brazil
| | - Ana Rita Almeida
- Department of Biology and CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Inês Domingues
- Department of Biology and CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Evaldo Luiz Gaeta Espíndola
- NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
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Carlsson G, Blomberg M, Pohl J, Örn S. Swimming activity in zebrafish larvae exposed to veterinary antiparasitic pharmaceuticals. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 63:74-77. [PMID: 30172958 DOI: 10.1016/j.etap.2018.08.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/17/2018] [Accepted: 08/24/2018] [Indexed: 06/08/2023]
Abstract
Veterinary antiparasitic pharmaceuticals have been detected in surface waters and several of these pharmaceuticals act on the nervous system on the target organisms implying that neurological effects also might be of concern in non-target animals such as fish. We tested if exposure to antiparasitic pharmaceuticals affect swimming activity in 6 days old zebrafish larvae. The results revealed that most pharmaceuticals did not cause any effects in swimming activity. However, larvae exposed to 0.58 mg/L doramectin displayed reduced swimming activity even though they were classified as normal, having no morphological abnormalities.
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Affiliation(s)
- Gunnar Carlsson
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07 Uppsala, Sweden.
| | - Maria Blomberg
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07 Uppsala, Sweden
| | - Johannes Pohl
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07 Uppsala, Sweden
| | - Stefan Örn
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07 Uppsala, Sweden
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Alak G, Ucar A, Parlak V, Yeltekin AÇ, Taş IH, Ölmez D, Kocaman EM, Yılgın M, Atamanalp M, Yanık T. Assessment of 8-hydroxy-2-deoxyguanosine activity, gene expression and antioxidant enzyme activity on rainbow trout (Oncorhynchus mykiss) tissues exposed to biopesticide. Comp Biochem Physiol C Toxicol Pharmacol 2017; 203:51-58. [PMID: 29111472 DOI: 10.1016/j.cbpc.2017.10.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 10/16/2017] [Accepted: 10/17/2017] [Indexed: 01/15/2023]
Abstract
The goal of this study was to determinate toxicity mechanism of biopesticide with antioxidant enzymes parameters such as superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT) and malondialdehyde (MDA) levels, oxidative DNA damage (8-hydroxy-2-deoxyguanosine (8-OHdG)), transcriptional changes of heat shock protein 70 (HSP70), and cytochromes P4501A (CYP1A), sod, cat, and gpx in liver and gill tissues of Oncorhynchus mykiss. For this aim, plant-based (natural pesticides, azadirachtin (AZA)) and synthetic pesticides (deltamethrin (DLM)) were exposed on the fish at different concentrations (0.0005 and 0.00025ppm of DLM; 0.24 and 0.12ppm of AZA) for 21 days. According to the results of the study, the activity of SOD, CAT and GPx decreased, but malondialdehyde (MDA) level and activity of 8-OHdG increased in the gill and liver of rainbow trout (p<0.05). Additionally sod, cat and gpx were down regulated; HSP70 and CYP1A were up regulated for transcriptional observation. The downwards regulation of antioxidant (sod, cat and gpx) and the upregulation of HSP70 and CYP1A was obvious with doses of AZA or DLM (p<0.05). The findings of this study suggest that biopesticide can cause biochemical and physiological effects in the fish gill and liver by causing enzyme inhibition, an increase in 8-OHdG levels and changes in both transcriptional parameters (sod, cat, gpx, HSP70 and CYP1A). We found that excessive doses of plant-based pesticide are nearly as toxic as chemical ones for aquatic organisms. Moreover, 8-OHdG, HSP70 and CYP1A used as a biomarker to determinate toxicity mechanism of biopesticide in aquatic environment.
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Affiliation(s)
- Gonca Alak
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey.
| | - Arzu Ucar
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Veysel Parlak
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey.
| | - Aslı Çilingir Yeltekin
- Department of Chemistry, Faculty of Science, University of Yuzuncu Yıl, TR-65080 Van, Turkey
| | | | - Doğukan Ölmez
- Graduate School of Natural and Applied Sciences, TR-25030 Erzurum, Turkey
| | - Esat Mahmut Kocaman
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Mustafa Yılgın
- Graduate School of Natural and Applied Sciences, TR-07070 Antalya, Turkey
| | - Muhammed Atamanalp
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Telat Yanık
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
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Alak G, Yeltekin AÇ, Tas IH, Ucar A, Parlak V, Topal A, Kocaman EM, Atamanalp M. Investigation of 8-OHdG, CYP1A, HSP70 and transcriptional analyses of antioxidant defence system in liver tissues of rainbow trout exposed to eprinomectin. FISH & SHELLFISH IMMUNOLOGY 2017; 65:136-144. [PMID: 28400213 DOI: 10.1016/j.fsi.2017.04.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/31/2017] [Accepted: 04/07/2017] [Indexed: 06/07/2023]
Abstract
Eprinomectin (EPM), a member of avermectin family, is a semi-synthetic antibiotic. It has been known that avermectin family enters the aquatic environments and adversely affects the aquatic organisms. Effects of EPM is fully unknown in aquatic organisms especially fish, thus the aim of the present study was to investigate transcriptional changes (sod, cat, gpx) and activities of some antioxidant enzymes (superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT) and malondialdehyde (MDA) levels, oxidative DNA damage (8-hydroxy-2-deoxyguanosine (8-OHdG)) and transcriptional changes of heat shock protein 70 (HSP70), and cytochromes P4501A (CYP1A) in liver tissues of rainbow trout exposed to sublethal EPM concentration (0.001 μg/L, 0.002 μg/L, 0.01 μg/L, 0.05 μg/L) for 24 h, 48 h, 72 h and 96 h. The decrease in antioxidant enzyme (SOD, CAT and GPx) activity, transcriptional changes (sod, cat, gpx, HSP70 and CYP1A genes) and increase in MDA level and activity of 8-OHdG in a dose-time-dependent manner in the liver of rainbow trout were observed. The down-regulated of antioxidant (sod, cat and gpx), HSP70 and CYP1A obviously, the severity of which increased with the concentration of EPM and exposure time. The results imply that EPM could induce oxidative damage to the liver tissue of rainbow trout. The information presented in this study is helpful to understand the mechanism of veterinary pharmaceuticals-induced oxidative stress in fishes.
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Affiliation(s)
- Gonca Alak
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey.
| | - Aslı Çilingir Yeltekin
- Department of Chemistry, Faculty of Science, University of Yuzuncu Yıl, TR-65080, Van, Turkey
| | - Ismail Hakkı Tas
- Department of Parasitology, Faculty of Veterinary, Ataturk University, TR-25030 Erzurum, Turkey
| | - Arzu Ucar
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Veysel Parlak
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Ahmet Topal
- Department of Basic Sciences, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Esat Mahmut Kocaman
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Muhammed Atamanalp
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
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Wohde M, Bartz JO, Böhm L, Hartwig C, Keil BM, Martin K, Düring RA. Automated thin-film microextraction coupled to a flow-through cell: somewhere in between passive and active sampling. Anal Bioanal Chem 2016; 409:1975-1984. [PMID: 28012111 DOI: 10.1007/s00216-016-0145-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 12/01/2016] [Accepted: 12/12/2016] [Indexed: 10/20/2022]
Abstract
A prototype for the automated thin-film microextraction of pharmaceuticals from aqueous solutions has been developed and is presented here for the first time. With a software-controlled setup, extraction methods for ivermectin and iohexol have been developed. The widely used antiparasitic agent ivermectin is non-polar and has a high tendency to sorb to surfaces. In contrast to this, the nonionic but polar iodinated X-ray contrast agent iohexol is freely water soluble. With these two substances, a wide range of polarity is covered. Sorption kinetics and thermodynamics of ivermectin and iohexol were studied. With the presented passive sampling approach, it was possible to extract up to 96.2% ivermectin with a C18-phase within 1 h and up to 74.6% of iohexol with a PS-DVB phase within 36 h out of water. Using abamectin as internal standard, it was possible to quantitatively follow dissipation of ivermectin in a simulated surface water experiment. Predominantly, the newly developed prototype can be used for automated and time-resolved extraction of xenobiotics from waterbodies under field conditions, for the extraction of substances under laboratory conditions as an alternative to the elaborate solid-phase extraction, and for the automated control of chemical reaction kinetics.
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Affiliation(s)
- Manuel Wohde
- Institute of Soil Science and Soil Conservation, Justus Liebig University Giessen, IFZ, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany.
| | - Jens-Ole Bartz
- Department of Applied Microbiology, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Leonard Böhm
- Institute of Soil Science and Soil Conservation, Justus Liebig University Giessen, IFZ, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Christoph Hartwig
- Institute of Soil Science and Soil Conservation, Justus Liebig University Giessen, IFZ, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Benjamin Martin Keil
- Institute of Soil Science and Soil Conservation, Justus Liebig University Giessen, IFZ, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Katharina Martin
- Institute of Soil Science and Soil Conservation, Justus Liebig University Giessen, IFZ, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Rolf-Alexander Düring
- Institute of Soil Science and Soil Conservation, Justus Liebig University Giessen, IFZ, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
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Oliveira R, Grisolia CK, Monteiro MS, Soares AMVM, Domingues I. Multilevel assessment of ivermectin effects using different zebrafish life stages. Comp Biochem Physiol C Toxicol Pharmacol 2016; 187:50-61. [PMID: 27153811 DOI: 10.1016/j.cbpc.2016.04.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 04/09/2016] [Accepted: 04/29/2016] [Indexed: 11/24/2022]
Abstract
Several studies have shown high toxicity of the veterinary pharmaceutical ivermectin (a semisynthetic avermectin) for aquatic invertebrates however, few data is found for fish species. The present study evaluated the toxicity of ivermectin, to embryos, juveniles, and adults of zebrafish at different levels of biological organization including developmental, behavioural and biochemical. Toxicity tests were performed based on OECD protocols and mortality and behavioural changes were assed for all stages. Biochemical responses were assessed in adults and embryos and included cholinesterases (ChEs), catalase (CAT) (only in embryos), glutathione-S-Transferase (GST), lactate dehydrogenase (LDH) and vitellogenin (VTG) like proteins (only in embryos). Genotoxicity was evaluated in adults. Results showed a higher sensitivity of juvenile and adults of zebrafish (96h-LC10 values of 14.0 and 55.4μg/L, respectively). For embryos a 96h-LC10 of 147.1μg/L was calculated, moreover developmental anomalies and hatching inhibition were observed only at high concentrations (>400μg/L), whereas biochemical and behavioural responses occurred at lower concentrations (<60μg/L). Behavioural responses (lethargy) occurred in all life stages. Biochemical responses were observed including the inhibition of GST in adults and changes in ChE, CAT, LDH activities and VTG levels in embryos. Ivermectin did not show to be genotoxic for adult fish. The species sensitivity distribution analysis, based on fish and invertebrate species, indicated a Hazardous Concentration for 5% of the population (HC5) value of 0.057μg/L; suggesting high sensitivity of both groups to ivermectin and a high risk of this compound to aquatic ecosystems.
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Affiliation(s)
- Rhaul Oliveira
- Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Distrito Federal, Brazil; Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Cesar K Grisolia
- Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Distrito Federal, Brazil.
| | - Marta S Monteiro
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Inês Domingues
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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