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Gasque-Belz L, Park B, Siciliano S, Hogan N, Weber L, Campbell P, Peters R, Hanson M, Hecker M. Characterization of Adverse Outcomes from Legacy-Contaminated Groundwater Exposure to Early Life Stages of Fathead Minnow. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 87:34-47. [PMID: 38871949 DOI: 10.1007/s00244-024-01069-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 05/13/2024] [Indexed: 06/15/2024]
Abstract
Complex mixtures of chemicals present in groundwater at legacy-contaminated industrial sites can pose significant risks to adjacent surface waters. The combination of short-term molecular and chronic apical effect assessments is a promising approach to characterize the potential hazard of such complex mixtures. The objectives of this study were to: (1) assess the apical effects (survival, growth, development, and liver histopathology) after chronic exposure of early life stages (ELSs) of fathead minnows (FHM; Pimephales promelas) to contaminated groundwater from a legacy-contaminated pesticide manufacturing and packaging plant, and (2) identify possible molecular mechanisms responsible for these effects by comparing results to mechanistic outcomes previously determined by a short-term reduced transcriptome assay (EcoToxChips). This study revealed a significant increase in mortality and prevalence of spinal curvatures, as well as a significant reduction in the length of FHMs exposed to the groundwater mixtures in a concentration-dependent manner. There was an increasing trend in the prevalence of edema in FHMs, though not significantly different from controls. Additionally, no histopathological effects were observed in the liver of FHMs exposed to the groundwater mixtures. Short-term molecular outcomes determined in a parallel study were found to be informative of chronic apical outcomes, including cardiotoxicity, spinal deformities, and liver toxicity. Overall, the results observed in this study demonstrated that short-term transcriptomics analyses could support the hazard assessment of complex contaminated sites.
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Affiliation(s)
- Laura Gasque-Belz
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Bradley Park
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Steven Siciliano
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Natacha Hogan
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Lynn Weber
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | | | - Rachel Peters
- Federated Co-Operatives Limited, Saskatoon, SK, Canada
| | - Mark Hanson
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Markus Hecker
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada.
- School of the Environment and Sustainability, University of Saskatchewan, Saskatoon, SK, Canada.
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Thanomsit C, Khumsopha C, Saetiew J, Meemon P, Nanthanawat P, Saowakoon S. Assessment of the effects of 2,4-D-dichlorophenoxyacetic acid-based herbicide exposure in eggs and embryos of golden apple snails using OCT. APPLIED OPTICS 2024; 63:3712-3724. [PMID: 38856558 DOI: 10.1364/ao.503470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 04/11/2024] [Indexed: 06/11/2024]
Abstract
This study aimed to evaluate the effects of herbicide 2, 4-D-dichlorophenoxy acetic acid on golden apple snail eggs and embryos. Additionally, the study assessed the applicability of optical coherence tomography (OCT), a non-invasive depth cross-sectional microscopic imaging technique, as a novel method, to the best of our knowledge, for studying morphological changes in golden apple snail eggs and embryos, in comparison to the conventional approach of using white light microscopy. The study revealed that the herbicide 2,4-D-dichlorophenoxy acetic acid affected the hatchery rate and morphological changes of the eggs and embryos. The lethal concentration (LC50), representing the concentration of a substance that is expected to cause death in half of the population being studied, of the golden apple eggs and embryos increased with longer exposure time and higher concentrations. The estimated median effective concentration (EC50), which denotes the concentration producing the desired effect in 50% of the exposed golden apple embryos, exhibited a similar trend of change as the LC50. When compared to the microscopic study, it was observed that OCT could be employed to investigate morphological changes of golden apple snail eggs and embryos, enabling evaluation of alterations in both 2D and 3D structures.
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Gasque-Belz L, Raes K, Park B, Colville C, Siciliano S, Hogan N, Weber L, Campbell P, Peters R, Hanson M, Hecker M. Hazard assessment of complex legacy-contaminated groundwater mixtures using a novel approach method in adult fathead minnows. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133299. [PMID: 38141307 DOI: 10.1016/j.jhazmat.2023.133299] [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: 10/30/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 12/25/2023]
Abstract
Traditional risk assessment methods face challenges in the determination of drivers of toxicity for complex mixtures such as those present at legacy-contaminated sites. Bioassay-driven analysis across several levels of biological organization represents an approach to address these obstacles. This study aimed to apply a novel transcriptomics tool, the EcoToxChip, to characterize the effects of complex mixtures of contaminants in adult fathead minnows (FHMs) and to compare molecular response patterns to higher-level biological responses. Adult FHMs were exposed for 4 and 21 days to groundwater mixtures collected from a legacy-contaminated site. Adult FHM showed significant induction of micronuclei in erythrocytes, decrease in reproductive capacities, and some abnormal appearance of liver histology. Parallel EcoToxChip analyses showed a high proportion of upregulated genes and a few downregulated genes characteristic of compensatory responses. The three most enriched pathways included thyroid endocrine processes, transcription and translation cellular processes, and xenobiotics and reactive oxygen species metabolism. Several of the most differentially regulated genes involved in these biological pathways could be linked to the apical outcomes observed in FHMs. We concluded that molecular responses as determined by EcoToxChip analysis show promise for informing of apical outcomes and could support risk assessments of complex contaminated sites.
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Affiliation(s)
- Laura Gasque-Belz
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Katherine Raes
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Bradley Park
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Carly Colville
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Steven Siciliano
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Natacha Hogan
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Lynn Weber
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | | | - Rachel Peters
- Federated Co-operatives Limited, Saskatoon, SK, Canada
| | - Mark Hanson
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - Markus Hecker
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada; School of the Environment and Sustainability, University of Saskatchewan, Saskatoon, SK, Canada.
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Thanomsit C, Khanchanasal P, Prasatkaew W, Nanuam J, Meemon P, Wattanakornsiri A, Nanthanawat P. Adverse effects of 2,4-D dimethylammonium based-herbicide on Acetylcholinesterase expression in Nile tilapia (Oreochromis niloticus). ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 106:104383. [PMID: 38320722 DOI: 10.1016/j.etap.2024.104383] [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: 10/29/2023] [Revised: 01/11/2024] [Accepted: 02/01/2024] [Indexed: 02/17/2024]
Abstract
In this study, the evaluation of a 2,4-D dimethylammonium based-herbicide impacted on Nile tilapia was done. The effects focus on Acetylcholinesterase (AChE) expression in the brain, gill, muscle, and plasma using antibody techniques. Our findings revealed a decrease in AChE expression with prolonged exposure. For these, AChE was purified using hydroxyapatite column chromatography. Moreover, the isolated protein was characterized as AChE by Polyclonal Ab specific to AChE through the Western blot. For interpretation at the cellular and molecular level, we employed two analytical techniques, histology, and optical coherence tomography (OCT). Alterations in the gill, liver, and muscle were observed to increase with increased exposure time. Field study concludes that AChE could serve as a biomarker to detect herbicide contamination in water and its accumulation in aquatic animals. This study may aid in surveillance and strategy formulation for managing contamination from such substances in various water sources.
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Affiliation(s)
- Chutima Thanomsit
- Department of Fisheries, Faculty of Agriculture and Technology, Rajamangala University of Technology Isan Surin Campus, Surin 32000, Thailand
| | - Prang Khanchanasal
- Agricultural and Technology Program, Faculty of Agriculture and Technology, Rajamangala University of Technology Isan Surin Campus, Surin 32000, Thailand
| | - Witchuda Prasatkaew
- Department of Environmental management, Faculty of Science and Technology, Dhonburi Rajabhat University, Samutprakan 10540, Thailand
| | - Jakkaphun Nanuam
- Office of Educational Affairs, Faculty of Science, Burapha University, Chonburi 20131, Thailand
| | - Panomsak Meemon
- School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; Center of Excellent in Advanced Functional Material, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.
| | - Amnuay Wattanakornsiri
- Department of Agriculture and Environment, Faculty of Science and Technology,Surindra Rajabhat University, Surin 32000, Thailand
| | - Phochit Nanthanawat
- Office of Educational Affairs, Faculty of Science, Burapha University, Chonburi 20131, Thailand.
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Martins RX, Carvalho M, Maia ME, Flor B, Souza T, Rocha TL, Félix LM, Farias D. 2,4-D Herbicide-Induced Hepatotoxicity: Unveiling Disrupted Liver Functions and Associated Biomarkers. TOXICS 2024; 12:35. [PMID: 38250991 PMCID: PMC10818579 DOI: 10.3390/toxics12010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/22/2023] [Accepted: 12/29/2023] [Indexed: 01/23/2024]
Abstract
2,4-dichlorophenoxyacetic acid (2,4-D) is a widely used herbicide worldwide and is frequently found in water samples. This knowledge has prompted studies on its effects on non-target organisms, revealing significant alterations to liver structure and function. In this review, we evaluated the literature on the hepatotoxicity of 2,4-D, focusing on morphological damages, toxicity biomarkers and affected liver functions. Searches were conducted on PubMed, Web of Science and Scopus and 83 articles were selected after curation. Among these studies, 72% used in vivo models and 30% used in vitro models. Additionally, 48% used the active ingredient, and 35% used commercial formulations in exposure experiments. The most affected biomarkers were related to a decrease in antioxidant capacity through alterations in the activities of catalase, superoxide dismutase and the levels of malondialdehyde. Changes in energy metabolism, lipids, liver function, and xenobiotic metabolism were also identified. Furthermore, studies about the effects of 2,4-D in mixtures with other pesticides were found, as well as hepatoprotection trials. The reviewed data indicate the essential role of reduction in antioxidant capacity and oxidative stress in 2,4-D-induced hepatotoxicity. However, the mechanism of action of the herbicide is still not fully understood and further research in this area is necessary.
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Affiliation(s)
- Rafael Xavier Martins
- Post-Graduation Program in Biochemistry, Department of Biochemistry and Molecular Biology, Building 907, Campus Pici, Federal University of Ceará, Fortaleza 60455-970, Brazil; (R.X.M.); (M.E.M.)
- Laboratory for Risk Assessment of Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, João Pessoa 58050-085, Brazil; (M.C.); (B.F.); (T.S.)
| | - Matheus Carvalho
- Laboratory for Risk Assessment of Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, João Pessoa 58050-085, Brazil; (M.C.); (B.F.); (T.S.)
| | - Maria Eduarda Maia
- Post-Graduation Program in Biochemistry, Department of Biochemistry and Molecular Biology, Building 907, Campus Pici, Federal University of Ceará, Fortaleza 60455-970, Brazil; (R.X.M.); (M.E.M.)
- Laboratory for Risk Assessment of Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, João Pessoa 58050-085, Brazil; (M.C.); (B.F.); (T.S.)
| | - Bruno Flor
- Laboratory for Risk Assessment of Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, João Pessoa 58050-085, Brazil; (M.C.); (B.F.); (T.S.)
| | - Terezinha Souza
- Laboratory for Risk Assessment of Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, João Pessoa 58050-085, Brazil; (M.C.); (B.F.); (T.S.)
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia 74055-110, Brazil;
| | - Luís M. Félix
- Centre for the Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
- Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - Davi Farias
- Post-Graduation Program in Biochemistry, Department of Biochemistry and Molecular Biology, Building 907, Campus Pici, Federal University of Ceará, Fortaleza 60455-970, Brazil; (R.X.M.); (M.E.M.)
- Laboratory for Risk Assessment of Novel Technologies, Department of Molecular Biology, Federal University of Paraiba, João Pessoa 58050-085, Brazil; (M.C.); (B.F.); (T.S.)
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Silva AL, Albinati ACL, Souza SA, Marques JVS, Andrade IBM, Souza YRC, Amorim AG. Evaluation of the acute and sublethal toxicity of Mancozeb in Pacamã (Lophiosilurus alexandri). BRAZ J BIOL 2023; 83:e274393. [PMID: 37909557 DOI: 10.1590/1519-6984.274393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/15/2023] [Indexed: 11/03/2023] Open
Abstract
The toxic potential of dithiocarbamates fungicides widely used in world agriculture is well known, among which Mancozeb is one of the most used. This study aimed to evaluate the toxicity of Mancozeb, determining the LC50% of the product and the behavioral and histological changes observed in fish of the Pacamã species through acute and sublethal toxicity tests. The first experiment was carried out on Pacamã fingerlings exposed to dosages of 0.5, 1, 2, 4, and 8mg/L of Mancozeb under the form ManzateWG®, for a total period of 96 hours in the acute experiment, and in the second experiment, fish were subjected to concentrations of 1/10 of those used in the acute experiment (0.05, 0.1, 0.2, 0.4 and 0.8mg/L, respectively), for 15 days in total. The 50% lethal concentration of ManzateWG® was calculated at the end of the acute experiment, presenting a value of 2.29mg/L at 96h for Pacamã fingerlings. A behavioral assessment was carried out through daily observation of the fish during both experiments, and an increase in mucus production was observed, as well as atypical social behavior in those exposed to the toxic agent. Histopathological evaluation was performed on livers collected after the end of the sublethal experiment, and the main hepatic alterations observed were cytoplasmic vacuolization, inflammatory infiltrate, and necrosis. Mancozeb has toxic potential and is capable of generating behavioral changes, as well as increasing the risk of liver damage in Pacamãs exposed to this compound.
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Affiliation(s)
- A L Silva
- Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Biotecnologia, Recife, PE, Brasil
| | - A C L Albinati
- Universidade Federal do Vale do São Francisco - UNIVASF, Colegiado Acadêmico de Medicina Veterinária, Petrolina, PE, Brasil
| | - S A Souza
- Universidade Federal do Vale do São Francisco - UNIVASF, Colegiado Acadêmico de Medicina Veterinária, Petrolina, PE, Brasil
| | - J V S Marques
- Universidade Federal do Vale do São Francisco - UNIVASF, Colegiado Acadêmico de Medicina Veterinária, Petrolina, PE, Brasil
| | - I B M Andrade
- Universidade Federal do Vale do São Francisco - UNIVASF, Colegiado Acadêmico de Medicina Veterinária, Petrolina, PE, Brasil
| | - Y R C Souza
- Universidade Federal do Vale do São Francisco - UNIVASF, Colegiado Acadêmico de Medicina Veterinária, Petrolina, PE, Brasil
| | - A G Amorim
- Universidade Federal do Vale do São Francisco - UNIVASF, Colegiado Acadêmico de Medicina Veterinária, Petrolina, PE, Brasil
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Sayadi MH, Pavlaki MD, Loureiro S, Martins R, Tyler CR, Mansouri B, Kharkan J, Shekari H. Co-exposure of zinc oxide nanoparticles and multi-layer graphenes in blackfish (Capoeta fusca): evaluation of lethal, behavioural, and histopathological effects. ECOTOXICOLOGY (LONDON, ENGLAND) 2022; 31:425-439. [PMID: 35089487 DOI: 10.1007/s10646-022-02521-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/17/2022] [Indexed: 05/24/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) and multi-layer graphenes (MLGs) are widely used, and due to the lack of appropriate wastewater treatment may end up in the aquatic environment, with unknown consequences to biota. The main purpose of this study was to assess the acute toxicity, histopathological and behavioural changes caused by the exposure of ZnO NPs and MLGs, alone and combined, to the blackfish Capoeta fusca. The estimated mean 96 h-LC50 for ZnO NPs was 4.9 mg L-1 and 68.4 mg L-1 for MLGs. In combination, MLGs increased the acute toxicity of the ZnO NPs. The effects of the different NPs on the gills included hyperplasia, aneurisms, and fusion of the lamellae. In the intestine, exposure to the NPs resulted in an increase in the number and swelling of goblet cells and tissue degeneration. Loss of balance, restlessness, erratic and abnormal swimming patterns were the most common behavioural changes seen in the ZnO NPs' exposed blackfish. In contrast with the acute toxicity findings, MLGs decreased the histopathological and behavioural effects of the ZnO NPs on both gills and intestinal tissues as well as fish behaviour. Our experimental results illustrated insights into the simultaneous exposure assessment of metal-based NPs and carbon nanomaterials, although further research is needed on the interactions exposure of these substances to interpreting the toxicological effects of metal-based nanomaterials seen in exposed organisms.
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Affiliation(s)
- Mohammad Hossein Sayadi
- Department of Environmental Sciences, School of Natural Resources and Environment, University of Birjand, Birjand, Iran
- Department of Environmental Engineering, Faculty of Agriculture and Natural Resources, Ardakan University, Ardakan, Iran
| | - Maria D Pavlaki
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Susana Loureiro
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Roberto Martins
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Charles R Tyler
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope, Stocker Road, Exeter, Devon, EX4 4QD, UK
| | - Borhan Mansouri
- Substance Abuse Prevention Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Javad Kharkan
- Department of Environmental Sciences, School of Natural Resources and Environment, University of Birjand, Birjand, Iran
| | - Hossein Shekari
- Department of Environmental Sciences, School of Natural Resources and Environment, University of Birjand, Birjand, Iran
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Destro ALF, Silva SB, Gregório KP, de Oliveira JM, Lozi AA, Zuanon JAS, Salaro AL, da Matta SLP, Gonçalves RV, Freitas MB. Effects of subchronic exposure to environmentally relevant concentrations of the herbicide atrazine in the Neotropical fish Astyanax altiparanae. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111601. [PMID: 33396121 DOI: 10.1016/j.ecoenv.2020.111601] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 10/16/2020] [Accepted: 11/01/2020] [Indexed: 06/12/2023]
Abstract
Atrazine (ATZ) is among the most widely used herbicides in the world, and yet it has a potential to contaminate aquatic environments due to pesticide leaching from agricultural areas. In the Neotropical region, studies about the effects of this herbicide in native aquatic wildlife is scarce.Our study aimed at investigating the effects of a 30-day exposure to a commercial atrazine formulation on oxidative stress parameters, histopathology in testis and liver, and hormone levels in males and female of yellow-tailed tetra fish (Astyanax altiparanae). Adults were exposed to low but environmentally relevant concentrations of atrazine as follows: 0 (CTL-control), 0.5 (ATZ0.5), 1 (ATZ1), 2 (ATZ2) and 10 (ATZ10) μg/L. Our results showed decreased GST activity in gills in all groups of exposed animals and increased CAT activity in gills from the ATZ10 group. In the liver, there was an increase in lipid peroxidation in fish from ATZ1 and ATZ2 groups. Histological analysis of the liver showed increased percentage of sinusoid capillaries in ATZ2 fish, increased vascular congestion in ATZ1 and increased leukocyte infiltration in the ATZ10 group. Hepatocyte diameter analysis revealed a decrease in cell size in all groups exposed to ATZ, and a decrease in hepatocyte nucleus diameter in ATZ1, ATZ2 and ATZ10 groups. Endocrine parameters did not show significant changes following ATZ exposure, although an increase of triiodothyronine/thyroxine (T3/T4) ratio was observed in ATZ2 fish. Our results provide evidence that even low, environmentally relevant concentrations of ATZ produced oxidative damage and histological alterations in adult yellow-tailed tetra.
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Affiliation(s)
- Ana Luiza F Destro
- Department of Animal Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | - Stella B Silva
- Department of Animal Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | - Kemilli P Gregório
- Department of Animal Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | | | - Amanda A Lozi
- Department of Cellular and structural Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | | | - Ana Lúcia Salaro
- Department of Animal Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | | | | | - Mariella B Freitas
- Department of Animal Biology, Federal University of Viçosa, Viçosa, MG, Brazil.
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Histological, Genotoxic, and Biochemical Effects on Cnesterodon decemmaculatus (Jenyns 1842) (Cyprinodontiformes, Poeciliidae): Early Response Bioassays to Assess the Impact of Receiving Waters. J Toxicol 2019; 2019:4687685. [PMID: 30693026 PMCID: PMC6332968 DOI: 10.1155/2019/4687685] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 10/05/2018] [Accepted: 12/04/2018] [Indexed: 12/12/2022] Open
Abstract
In the present study, the toxicity of receiving waters from a highly polluted urban watercourse, the Reconquista River, Argentina, collected at a dam in the upstream part of the river was evaluated. Cnesterodon decemmaculatus, a widely distributed fish species in Pampasic rivers proposed for use in ecotoxicological evaluations, was used as a test organism. A 96-h acute toxicity bioassay with river water quality which has been characterized as moderately contaminated was performed. The treatment groups were (1) whole surface river water; (2) whole surface river water with 2 mg Cd/L added as a simulated metal contaminant pulse; (3) a negative control using reconstituted moderately hard water (MHW); (4) a metal positive control, MHW + 2 mg Cd/L; and (5) a positive genotoxicity control, MHW + 5 mg Cyclophosphamide/L (CP). The condition factor rate, micronuclei frequency, and comet assay from peripherical blood, structural changes of the gill arrangement by scanning electron microscope (SEM) analysis, histopathological changes in the liver and the glutathione-S-transferase, catalase, superoxide dismutase, glutathione, and protein content from the body midsection (viscera) were evaluated. According to our results, for short term exposure, SEM analyses of gills and liver histopathological analyses could be useful tools for the evaluation of target organ damage as well as comet assays for DNA damage. We propose that the 96-h laboratory bioassay protocol described is useful for monitoring the deterioration of water quality employing the teleost C. decemmaculatus and that the microscope analysis of gills and liver as well as the comet assay methodology could be sensitive endpoint indicators.
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Dehnert GK, Freitas MB, DeQuattro ZA, Barry T, Karasov WH. Effects of low, subchronic exposure of 2,4-Dichlorophenoxyacetic acid (2,4-D) and commercial 2,4-D formulations on early life stages of fathead minnows (Pimephales promelas). ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:2550-2559. [PMID: 29920774 DOI: 10.1002/etc.4209] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 03/26/2018] [Accepted: 06/15/2018] [Indexed: 06/08/2023]
Abstract
Aquatic herbicides are commonly used to control a wide variety of algae and plants, but they also have the potential to contaminate and affect nontarget organisms. However, the impacts of low-level 2,4-dichlorophenoxyacetic acid (2,4-D) herbicide exposure on larval fish are not well understood. We conducted a series of experiments to determine the effects of low concentrations (0.05, 0.50, and 2.00 ppm) of 2 commercial 2,4-D amine salt herbicide formulations (Weedestroy® AM40 [WAM40] and DMA® 4 IVM [DMA4]) and pure 2,4-D on the development and survival of fathead minnows (Pimephales promelas) at various life cycle stages. Larval survival (30 d post hatch [dph]) was decreased following exposure of eggs and larvae to pure 2,4-D (0.50 ppm; p ≤ 0.001), as well as to WAM40 (0.50 and 2.00 ppm; p ≤ 0.001, p ≤ 0.001) and DMA4 (0.50 and 2.00 ppm; p ≤ 0.001, p ≤ 0.001). The results also narrowed the critical window of exposure for effects on survival to the period between fertilization and 14 dph. Development was not negatively altered by any of the compounds tested, although the commercial formulations increased larval total length and mass at 2.00 ppm. Altogether, the results indicate that the use of 2,4-D herbicides for weed control in aquatic ecosystems at current recommended concentrations (<2 ppm whole lake; <4 ppm spot treatment) could present risks to fathead minnow larval survival. Environ Toxicol Chem 2018;37:2550-2559. © 2018 SETAC.
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Affiliation(s)
- Gavin K Dehnert
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Mariella B Freitas
- Department of Animal Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Zachary A DeQuattro
- Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Terence Barry
- Department of Animal Science, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - William H Karasov
- Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, Wisconsin, USA
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11
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Pérez DJ, Okada E, De Gerónimo E, Menone ML, Aparicio VC, Costa JL. Spatial and temporal trends and flow dynamics of glyphosate and other pesticides within an agricultural watershed in Argentina. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:3206-3216. [PMID: 28631831 DOI: 10.1002/etc.3897] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 03/20/2017] [Accepted: 06/16/2017] [Indexed: 12/16/2023]
Abstract
In the present study, we evaluated the spatial and temporal trends of current-use pesticides in surface water and sediments as well as their relationship with hydrological stream dynamics within the agricultural watershed of El Crespo stream (Buenos Aires Province, Argentina). We sampled 2 contrasting sites: site 1 (upstream), surrounded by agricultural lands, and site 2 (downstream), surrounded by natural grasslands. Most of the applied pesticides (glyphosate, 2,4-D, atrazine, tebuconazole, and imidacloprid) were detected at high frequencies in surface water samples at both sites. However, only glyphosate and aminomethylphosphonic acid (AMPA) were present at high concentrations and had a significant spatial-temporal trend. The highest concentrations were found during spring 2014 at site 1, in association with the intense rains that occurred in that season. The fact that glyphosate and AMPA concentrations were higher than the rest of the studied compounds is closely related to the land use within the watershed, as glyphosate was the most applied herbicide during the fallow period of glyphosate-resistant crops (soybean, maize). The pesticide mixture had a significant spatial-temporal trend, reaching the highest levels during storm flow events in spring 2014. The intensive rains in spring 2014 could be the main factor influencing stream hydrology and pesticide behavior at El Crespo watershed. The estimated annual pesticide losses were 3.11 g/ha at site 1 and 0.72 g/ha at site 2. This result indicates that an attenuation process could be decreasing pesticide loads during downstream transport from site 1 to site 2. Environ Toxicol Chem 2017;36:3206-3216. © 2017 SETAC.
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Affiliation(s)
- Débora J Pérez
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- National Institute of Agricultural Technology (INTA), Balcarce, Buenos Aires, Argentina
| | - Elena Okada
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- National Institute of Agricultural Technology (INTA), Balcarce, Buenos Aires, Argentina
| | - Eduardo De Gerónimo
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- National Institute of Agricultural Technology (INTA), Balcarce, Buenos Aires, Argentina
| | - Mirta L Menone
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- Institute of Marine and Coastal Research-CONICET/National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina
| | - Virginia C Aparicio
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
- National Institute of Agricultural Technology (INTA), Balcarce, Buenos Aires, Argentina
| | - José L Costa
- National Institute of Agricultural Technology (INTA), Balcarce, Buenos Aires, Argentina
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Holt WV. Exploitation of Non-mammalian Model Organisms in Epigenetic Research. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1014:155-173. [DOI: 10.1007/978-3-319-62414-3_9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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Ghisi NC, Oliveira EC, Mendonça Mota TF, Vanzetto GV, Roque AA, Godinho JP, Bettim FL, Silva de Assis HCD, Prioli AJ. Integrated biomarker response in catfish Hypostomus ancistroides by multivariate analysis in the Pirapó River, southern Brazil. CHEMOSPHERE 2016; 161:69-79. [PMID: 27421103 DOI: 10.1016/j.chemosphere.2016.06.113] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 06/29/2016] [Accepted: 06/30/2016] [Indexed: 06/06/2023]
Abstract
Aquatic pollutants produce multiple consequences in organisms, populations, communities and ecosystems, affecting the function of organs, reproductive state, population size, species survival and even biodiversity. In order to monitor the health of aquatic organisms, biomarkers have been used as effective tools in environmental risk assessment. The aim of this study is to evaluate, through a multivariate and integrative analysis, the response of the native species Hypostomus ancistroides over a pollution gradient in the main water supply body of northwestern Paraná state (Brazil). The condition factor, micronucleus test and erythrocyte nuclear abnormalities (ENA), comet assay, measurement of the cerebral and muscular enzyme acetylcholinesterase (AChE), and histopathological analysis of liver and gill were evaluated in fishes from three sites of the Pirapó River during the dry and rainy seasons. The multivariate general result showed that the interaction between the seasons and the sites was significant: there are variations in the rates of alterations in the biological parameters, depending on the time of year researched at each site. In general, the best results were observed for the site nearest the spring, and alterations in the parameters at the intermediate and downstream sites. In sum, the results of this study showed the necessity of a multivariate analysis, evaluating several biological parameters, to obtain an integrated response to the effects of the environmental pollutants on the organisms.
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Affiliation(s)
- Nédia C Ghisi
- Programa de Pós-graduação em Ecologia de Ambientes Aquáticos e Continentais (PEA)/Nupélia, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Zona 7, 87020-900, Maringá, PR, Brazil; Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, km 4, 85660-000, Dois Vizinhos, PR, Brazil.
| | - Elton C Oliveira
- Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, km 4, 85660-000, Dois Vizinhos, PR, Brazil.
| | - Thais F Mendonça Mota
- Programa de Pós-graduação em Biologia Comparada, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Zona 7, 87020-900, Maringá, PR, Brazil.
| | - Guilherme V Vanzetto
- Programa de Pós-graduação em Ciência e Tecnologia Ambiental, Universidade Federal da Fronteira Sul (UFFS), Rodovia ERS 135, km 72, n. 200, 99700-970, PO Box 764, Erechim, RS, Brazil.
| | - Aliciane A Roque
- Programa de Pós-Graduação em Agroecossistemas, Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, km 4, 85660-000, Dois Vizinhos, PR, Brazil.
| | - Jayson P Godinho
- Programa de Pós-graduação em Ciência e Tecnologia Ambiental, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Curitiba, Rua Deputado Heitor de Alencar Furtado, 5000 - Bloco EC - Bairro Ecoville, 81280-340, Curitiba, PR, Brazil.
| | - Franciele Lima Bettim
- Departamento de Farmacologia, Universidade Federal do Paraná (UFPR), Rua Coronel Fco. H. dos Santos, s/n, 81531-990, PO Box 19031, Curitiba, PR, Brazil.
| | - Helena Cristina da Silva de Assis
- Departamento de Farmacologia, Universidade Federal do Paraná (UFPR), Rua Coronel Fco. H. dos Santos, s/n, 81531-990, PO Box 19031, Curitiba, PR, Brazil.
| | - Alberto J Prioli
- Programa de Pós-graduação em Ecologia de Ambientes Aquáticos e Continentais (PEA)/Nupélia, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Zona 7, 87020-900, Maringá, PR, Brazil.
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