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Eleiwa NZH, Elsayed ASF, Said EN, Metwally MMM, Abd-Elhakim YM. Di (2-ethylhexyl) phthalate alters neurobehavioral responses and oxidative status, architecture, and GFAP and BDNF signaling in juvenile rat's brain: Protective role of Coenzyme10. Food Chem Toxicol 2024; 184:114372. [PMID: 38113957 DOI: 10.1016/j.fct.2023.114372] [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: 10/04/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 12/21/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP), a phthalate plasticizer, is widely spread in the environment, presenting hazards to human health and food safety. Hence, this study examined the probable preventive role of coenzyme10 (CQ10) (10 mg/kg.b.wt) against DEHP (500 mg/kg.wt) - induced neurotoxic and neurobehavioral impacts in juvenile (34 ± 1.01g and 3 weeks old) male Sprague Dawley rats in 35-days oral dosing trial. The results indicated that CQ10 significantly protected against DEHP-induced memory impairment, anxiety, depression, spatial learning disorders, and repetitive/stereotypic-like behavior. Besides, the DEHP-induced depletion in dopamine and gamma amino butyric acid levels was significantly restored by CQ10. Moreover, CQ10 significantly protected against the exhaustion of CAT, GPx, SOD, GSH, and GSH/GSSG ratio, as well as the increase in malondialdehyde, Caspas-3, interleukin-6, and tumor necrosis factor-alpha brain content accompanying with DEHP exposure. Furthermore, CQ10 significantly protected the brain from the DEHP-induced neurodegenerative alterations. Also, the increased immunoexpression of brain-derived neurotrophic factor, not glial fibrillary acidic protein, in the cerebral, hippocampal, and cerebellar brain tissues due to DEHP exposure was alleviated with CQ10. This study's findings provide conclusive evidence that CQ10 has the potential to be used as an efficient natural protective agent against the neurobehavioral and neurotoxic consequences of DEHP.
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Affiliation(s)
- Naglaa Z H Eleiwa
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Alaa S F Elsayed
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Enas N Said
- Department of Behaviour and Management of Animal, Poultry and Aquatic, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Mohamed M M Metwally
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, King Salman International University, Ras Sudr, Egypt; Department of Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Yasmina M Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt.
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Eleiwa NZH, Ali MAA, Said EN, Metwally MMM, Abd-ElHakim YM. Bee venom (Apis mellifera L.) rescues zinc oxide nanoparticles induced neurobehavioral and neurotoxic impact via controlling neurofilament and GAP-43 in rat brain. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:88685-88703. [PMID: 37442924 PMCID: PMC10412495 DOI: 10.1007/s11356-023-28538-1] [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: 03/05/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023]
Abstract
This study investigated the possible beneficial role of the bee venom (BV, Apis mellifera L.) against zinc oxide nanoparticles (ZNPs)-induced neurobehavioral and neurotoxic impacts in rats. Fifty male Sprague Dawley rats were alienated into five groups. Three groups were intraperitoneally injected distilled water (C 28D group), ZNPs (100 mg/kg b.wt) (ZNPs group), or ZNPs (100 mg/kg.wt) and BV (1 mg/ kg.bwt) (ZNPs + BV group) for 28 days. One group was intraperitoneally injected with 1 mL of distilled water for 56 days (C 56D group). The last group was intraperitoneally injected with ZNPs for 28 days, then BV for another 28 days at the same earlier doses and duration (ZNPs/BV group). Depression, anxiety, locomotor activity, spatial learning, and memory were evaluated using the forced swimming test, elevated plus maze, open field test, and Morris water maze test, respectively. The brain contents of dopamine, serotonin, total antioxidant capacity (TAC), malondialdehyde (MDA), and Zn were estimated. The histopathological changes and immunoexpressions of neurofilament and GAP-43 protein in the brain tissues were followed. The results displayed that BV significantly decreased the ZNPs-induced depression, anxiety, memory impairment, and spatial learning disorders. Moreover, the ZNPs-induced increment in serotonin and dopamine levels and Zn content was significantly suppressed by BV. Besides, BV significantly restored the depleted TAC but minimized the augmented MDA brain content associated with ZNPs exposure. Likewise, the neurodegenerative changes induced by ZNPs were significantly abolished by BV. Also, the increased neurofilament and GAP-43 immunoexpression due to ZNPs exposure were alleviated with BV. Of note, BV achieved better results in the ZNPs + BV group than in the ZNPs/BV group. Conclusively, these results demonstrated that BV could be employed as a biologically effective therapy to mitigate the neurotoxic and neurobehavioral effects of ZNPs, particularly when used during ZNPs exposure.
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Affiliation(s)
- Naglaa Z H Eleiwa
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Mahmoud Abo-Alkasem Ali
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Enas N Said
- Department of Behaviour and Management of Animal, Poultry and Aquatic, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Mohamed M M Metwally
- Department of Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Yasmina M Abd-ElHakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
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Guimarães ATB, Freitas ÍN, Mubarak NM, Rahman MM, Rodrigues FP, Rodrigues ASDL, Barceló D, Islam ARMT, Malafaia G. Exposure to polystyrene nanoplastics induces an anxiolytic-like effect, changes in antipredator defensive response, and DNA damage in Swiss mice. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130004. [PMID: 36152541 DOI: 10.1016/j.jhazmat.2022.130004] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Although the in vivo toxicity of nanoplastics (NPs) has already been reported in different model systems, their effects on mammalian behavior are poorly understood. Thus, we aimed to evaluate whether exposure to polystyrene (PS) NPs (diameter: 23.03 ± 0.266 nm) alters the behavior (locomotor, anxiety-like and antipredator) of male Swiss mice, induces brain antioxidant activity, and erythrocyte DNA damage. For this, the animals were exposed to NPs for 20 days at different doses (6.5 ng/kg and 6500 ng/kg). Initially, we did not observe any effect of pollutants on the locomotor activity of the animals (inferred via open field test and Basso mouse scale for locomotion). However, we noticed an anxiolytic-like behavior (in the open field test) and alterations in the antipredatory defensive response of mice exposed to PS NPs, when confronted with their predator potential (snake, Pantherophis guttatus). Furthermore, such changes were associated with suppressing brain antioxidant activity, inferred by lower DPPH radical scavenging activity, reduced total glutathione content, as well as the translocation and accumulation of NPs in the brain of the animals. In addition, we noted that the treatments induced DNA damage, evaluated via a single-cell gel electrophoresis assay (comet assay) applied to circulating erythrocytes of the animals. However, we did not observe a dose-response effect for all biomarkers evaluated and the estimated accumulation of PS NPs in the brain. The values of the integrated biomarker response index and the results of the principal component analysis (PCA) and the hierarchical clustering analysis confirmed the similarity between the responses of animals exposed to different doses of PS NPs. Therefore, our study sheds light on how PS NPs can impact mammals and reinforce the ecotoxicological risk associated with the dispersion of these pollutants in natural environments and their uptake by mammals.
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Affiliation(s)
| | - Ítalo Nascimento Freitas
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | | | | | - Damià Barceló
- Catalan Institute for Water Research (ICRA-CERCA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, 17003, Girona, Spain; Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), JordiGirona 1826, 08034, Barcelona, Spain
| | | | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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SHEDDING LIGHT ON THE TOXICITY OF SARS-CoV-2-DERIVED PEPTIDE IN NON-TARGET COVID-19 ORGANISMS: A STUDY INVOLVING INBRED AND OUTBRED MICE. Neurotoxicology 2022; 90:184-196. [PMID: 35395329 PMCID: PMC8982478 DOI: 10.1016/j.neuro.2022.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 03/27/2022] [Accepted: 03/29/2022] [Indexed: 12/12/2022]
Abstract
Despite advances in research on the vaccine and therapeutic strategies of COVID-19, little attention has been paid to the possible (eco)toxicological impacts of the dispersion of SARS-CoV-2 particles in natural environments. Thus, in this study, we aimed to evaluate the behavioral and biochemical consequences of the short exposure of outbred and inbred mice (male Swiss and C57Bl/6 J mice, respectively) to PSPD-2002 (peptide fragments of the Spike protein of SARS-CoV-2) synthesized in the laboratory. Our data demonstrated that after 24 h of intraperitoneal administration of PSPD-2002 (at 580 μg/kg) the animals did not present alterations in their locomotor, anxiolytic-like, or anxiety-like behavior (in the open field test), nor antidepressant-like or depressive behavior in the forced swimming test. However, the C57Bl/6 J mice exposed to PSPD-2002 showed memory deficit in the novel object recognition task, which was associated with higher production of thiobarbituric acid reactive substances, as well as the increased suppression of acetylcholinesterase brain activity, compared to Swiss mice also exposed to peptide fragments. In Swiss mice the reduction in the activity of superoxide dismutase and catalase in the brain was not associated with increased oxidative stress biomarkers (hydrogen peroxide), suggesting that other antioxidant mechanisms may have been activated by exposure to PSPD-2002 to maintain the animals' brain redox homeostasis. Finally, the results of all biomarkers evaluated were applied into the "Integrated Biomarker Response Index" (IBRv2) and the principal component analysis (PCA), and greater sensitivity of C57Bl/6 J mice to PSPD-2002 was revealed. Therefore, our study provides pioneering evidence of mammalian exposure-induced toxicity (non-target SARS-CoV-2 infection) to PSPD-2002, as well as “sheds light” on the influence of genetic profile on susceptibility/resistance to the effects of viral peptide fragments.
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Kompiš M, Ballová ZK. The influence of preferred habitat and daily range of the European hare on its contamination by heavy metals: a case study from the West Carpathians. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:52093-52105. [PMID: 34002308 DOI: 10.1007/s11356-021-14363-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
The Spišská Magura mountain range, located in the Middle Spiš, is one of the regions in Slovakia most contaminated by heavy metals resulting from mining and smelting activities. Heavy metals and other potentially toxic elements have accumulated in mountain areas via atmospheric transport. The influence of the daily range size of the European hare on its contamination by heavy metals was investigated in three habitat types (forest, woodland edge, meadow) in the Spišská Magura mountain range in the West Carpathians. Individual hares (n = 21) were traced and located by GPS following snowfall. Pair samples of their faeces (n = 64) and food (n = 64) were collected from feeding sites. The maps created were used for determination of the size of the daily range as being small or large. All hares that have a small daily range avoid meadows and open spaces due to the higher predation risk. However, individuals with a large daily range feed in all habitats, including meadows. Hares with a small daily range in a forest habitat ingested higher amounts of bio-elements Ca, Cr, S, and Mn as well as higher amounts of heavy metals Ba and Pb than hares with a large daily range. Moreover, dominant hares with a small daily range, with access to abundant food sources in a forest habitat, may gradually take on higher levels of bio-elements including heavy metals that are present in their food source. In contrast, in the woodland edge, hares with a small daily range had a smaller concentration of Ca, Cr, Mn, S, Ba, and Pb compared to hares with a large daily range. Caecotrophy plays a very significant role as far as the intake of nutrients and other elements is concerned. We found significant dependence between concentrations of the elements Cr, S, Ba, Pb, and Cd in the food of European hares and in their faeces.
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Affiliation(s)
- Martin Kompiš
- Institute of High Mountain Biology, University of Žilina, Javorina 7, SK-05956, Tatranská, Slovakia
| | - Zuzana Kompišová Ballová
- Institute of High Mountain Biology, University of Žilina, Javorina 7, SK-05956, Tatranská, Slovakia.
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Baratzadeh Poustchi F, Tabatabaei Yazdi F, Heidari A, Moosavi Z. Evaluation of chromium accumulation and resulting histopathological changes in Libyan jirds (Mammals, Rodentia), affected by effluent from Ghazghan leather industrial town, Iran. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:39343-39353. [PMID: 32648223 DOI: 10.1007/s11356-020-09801-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
The leather industry is one of the major producers of wastewater, releasing large amounts of various chemicals into the environment. Chromium (Cr) is the most commonly used agent in the tanning industry. Accumulation in the animal body can adversely affect the functioning of animal tissues. The current study investigated the toxic effects of Cr on lung, kidney, liver, and testicular tissues in Libyan jirds (Meriones libycus) inhabiting the area surrounding Ghazghan leather industrial town, Mashhad, Iran. Average Cr concentrations were found to be significantly higher in samples from contaminated areas than controls (p < 0.05). The highest accumulation of Cr was found in lung tissue, while the liver tissue showed the lowest. The results also showed that sex and age had no significant effect on Cr accumulation in any tissue at either sampling area (p < 0.05). Histological analyses showed that Cr accumulation had caused changes in tissue samples from Libyan jirds from the contaminated area. Hyperemia was observed in all tissues. In kidney tissue, necrosis and degeneration of the epithelial cells of the tubules were seen as well, and in one case, we also observed hemorrhage. In liver tissue, necrosis, degeneration, and inflammation were observed, along with one case, of fibrosis. In lung tissue, we observed emphysema, hemorrhage, and inflammation. Testicular tissue also showed a considerable lesion. Given the proximity of specimens' habitat to an area of importance, i.e., the industrial town, and the species' dependence on its habitat for nutrition, Libyan jirds are particularly useful for monitoring. Thus, they can be used to monitor the level of contamination in future studies.
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Affiliation(s)
- Farideh Baratzadeh Poustchi
- Department of Environment, Faculty of Natural Resources and Environment, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Fatemeh Tabatabaei Yazdi
- Department of Environment, Faculty of Natural Resources and Environment, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Ava Heidari
- Department of Environment, Faculty of Natural Resources and Environment, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Zahra Moosavi
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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da Luz TM, Freitas ÍN, Silva FG, da Costa Araújo AP, Fernandes T, Rodrigues FP, de Oliveira Junior AG, Malafaia G. Do predictive environmentally relevant concentrations of ZnO nanoparticles induce antipredator behavioral response deficit in Swiss mice? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 703:135486. [PMID: 31757542 DOI: 10.1016/j.scitotenv.2019.135486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 11/09/2019] [Accepted: 11/10/2019] [Indexed: 06/10/2023]
Abstract
The toxicity of zinc oxide nanoparticles (ZnO NPs) has been addressed in several studies; however, their effect on the mammalian group, even at environmentally relevant concentrations, remains poorly understood. The aims of the present study are to expose female Swiss mice to ZnO NP concentrations commonly faced by mammals who enter aquatic systems to perform different ecological functions and to assess the possible effects of such particles on their behavior. The test animals were placed in water added with ZnO NPs for 3 min, 2 times/day, for 21 days. Two experimental groups were set, NP1x, composed of animals subjected to ZnO NP concentration of 760 μg/L; and NP50x (control), which encompassed animals subjected to 38,000 μg/L. Based on field test results (OF), the contact with NPs did not induce locomotor deficits or anxiogenic and anxiolytic effect on the animal models. However, models exposed to NPs were not able to recognize the predatory threat posed by the presence of Pantherophis guttatus and Arapaima gigas; on the other hand, animals in the control group, who were not exposed to ZnO NPs, did not present antipredator behavioral response deficit. Furthermore, mice exposed to NPs were unable to distinguish real predators from plastic copies, and it suggests antipredator behavioral response deficit. High Zn concentrations in blood, liver, brain and skin samples are associated with deficit caused by the exposure to ZnO NPs. To the best of our knowledge, the current study is in the first to evidence that ZnO NPs induce changes in antipredator behavioral responses, even under ephemeral conditions and at low concentrations. However, the exposure to ZnO NPs can be a risk to the health of the assessed individuals and to the dynamics of their populations if the present antipredator behavioral response test results are extrapolated to the ecological context.
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Affiliation(s)
| | | | - Fabiano Guimarães Silva
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Amanda Pereira da Costa Araújo
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Thiago Fernandes
- Laboratory of Electron Microscopy and Microanalysis (L.E.M.M.) of Londrina State University, PR, Brazil
| | | | | | - Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Goiano Federal Institute - Rectory, GO, Brazil.
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Sampaio DMDR, Estrela FN, Mendes BDO, Estrela DDC, Montalvão MF, Mesak C, Silva FG, Araújo APDC, de Freitas CS, Gontijo BV, Rodrigues ASDL, Malafaia G. Ingestion of tannery effluent as a risk factor to the health of birds: A toxicological study using Coturnix coturnix japonica as a model system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 681:275-291. [PMID: 31103665 DOI: 10.1016/j.scitotenv.2019.05.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/01/2019] [Accepted: 05/04/2019] [Indexed: 06/09/2023]
Abstract
Tannery industries generate large amounts of tannery effluents (TE), which have been considered highly toxic to various groups of animals. However, the identification and characterization of the impact of this mix of pollutants on birds is still highly incipient. So, our goal was to evaluate the possible biological changes of Coturnix coturnix japonica, exposed for 45 days, to different dilutions of TE (1.4%, 3.1% and 6.5%), using behavioural biomarkers, mutagenics and egg production. When submitted to the behavioural tests, quails that ingested TE presented behaviour compatible with an anxiolytic effect in the open field test; absence of emotional reactivity in the object recognition test; reduced rates of predation of Tenebrio molitor larvae (potential prey); as well as an anti-predatory defensive response deficit when confronted, especially with Felis catus males (potential predator). In addition, we observed increased biomass of the liver, increased feed conversion index and lower feed efficiency index; mutagenic effect of TE (inferred by the increase of nuclear erythrocyte abnormalities); reduced productive performance and egg quality, in addition to different staining patterns of the eggs produced by quails from the control group. Therefore, our study confirms the toxicity of TE in C. coturnix japonica, even in small dilutions. While behavioural changes demonstrate the neurotoxic potential of the pollutant, the other alterations suggest that the mechanisms of action of its chemical constituents are not selective, that is, they act systemically, acting synergistic, antagonistic or additively, causing harmful effects in animals.
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Affiliation(s)
- Douglas Marcel Dos Reis Sampaio
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Fernanda Neves Estrela
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Bruna de Oliveira Mendes
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Dieferson da Costa Estrela
- Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense - Jaguarão Campus, Rio Grande do Sul, RS, Brazil
| | - Mateus Flores Montalvão
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Carlos Mesak
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | | | - Amanda Pereira da Costa Araújo
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Carla Santos de Freitas
- Post-graduation Program in Chemistry, Universidade Federal de Goiás - Samambaia Campus, Goiânia, GO, Brazil
| | - Boniek Vaz Gontijo
- Post-graduation Program in Chemistry, Universidade Federal de Goiás - Samambaia Campus, Goiânia, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil.
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Detoxification Assays of Tunisian Tannery Wastewater under Nonsterile Conditions Using the Filamentous Fungus Aspergillus niger. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9020178. [PMID: 31275990 PMCID: PMC6582845 DOI: 10.1155/2019/9020178] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/30/2019] [Accepted: 05/20/2019] [Indexed: 01/04/2023]
Abstract
The ability of Aspergillus niger strain to reduce organic and mineral pollution as well as the toxicity of two tannery wastewaters, the unhairing effluent (UE) and the final effluent (FE), taken from a local Tunisian tannery and under nonsterile conditions, was studied. Raw effluents show alkaline pH ≥11; thus experiments were carried out at initial pH values and at pH adjusted to 6. Characterization of effluents also revealed high salt levels (EC > 17 mS/cm) and high organic matter content (25 g/L for the UE and 7.2 g/L for the FE) but a low biodegradability since BOD5 did not exceed 2.5 and 1.25 g/L for the UE and the FE, respectively. The results of the biological treatment showed that A. niger was able not only to grow at high pH and salinity values, but also to reduce organic and mineral pollutant load. After treatment, the COD reduction for the UE reached 90% and 70% at pH=6 and at initial pH (12.13), respectively. For the FE, the decrease of COD values reached 75% at pH=6 and 64% at initial pH (11.64). Monitoring of mineral pollution levels showed a reduction in chromium (Cr) concentrations reaching 70% for the FE. This was reflected by an increase of the biomass of A. niger from 9.25 g/L (control) to 9.84 g/L for the FE. To confirm the efficiency of the biological treatment using A. niger, phytotoxicity (tomato seeds) and microtoxicity (Escherichia coli and Bacillus subtilis) tests were carried out. Results of this monitoring showed an important decrease in the toxicity levels for both effluents.
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Lima VS, Guimarães ATB, da Costa Araújo AP, Estrela FN, da Silva IC, de Melo NFS, Fraceto LF, Malafaia G. Depression, anxiety-like behavior, and memory impairment in mice exposed to chitosan-coated zein nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:10641-10650. [PMID: 30771127 DOI: 10.1007/s11356-019-04536-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 02/07/2019] [Indexed: 06/09/2023]
Abstract
The advent of biotechnology provided the synthesis of nanoproducts with diverse applications in the field of medicine, agriculture, food, among others. However, the toxicity of many nanoparticles (NP) currently used, which can penetrate natural systems and impact organisms, is not known. Thus, in this study, we evaluated whether the short exposure (5 days) to low concentrations of chitosan-coated zein nanoparticles (ZNP-CS) (0.2 ng/kg, 40 ng/kg, and 400.00 ng/kg) was capable of causing behavioral alterations compatible with cognitive deficit, as well as anxiety and depression-like behavior in Swiss mice. However, we observed an anxiogenic effect in the animals exposed to the highest ZNP-CS concentration (400.00 ng/kg), without locomotor alterations suggestive of sedation or hyperactivity in the elevated plus maze (EPM) test. We also observed that the ZNP-CS caused depressive-like behavior, indicated by the longer immobile time in the tail suspension test and the animals exposed to ZNP-CS presented deficit in recognition of the new object, not related to locomotor alteration in this test. To the best of our knowledge, this is the first report of the neurotoxicity of ZNP in a mammal animal model, contributing to the biological safety assessment of these nanocomposites.
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Affiliation(s)
- Vinícius Silva Lima
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal Goiano-Urutaí Campus, Urutai, GO, Brazil
| | | | - Amanda Pereira da Costa Araújo
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal Goiano-Urutaí Campus, Urutai, GO, Brazil
| | - Fernanda Neves Estrela
- Post-graduation Program in Biotechnology and Biodiversity, Universidade Federal de Goiás, Goiania, GO, Brazil
| | | | | | - Leonardo Fernandes Fraceto
- Institute of Science and Technology of Sorocaba, São Paulo State University (UNESP), Sorocaba, SP, Brazil
| | - Guilherme Malafaia
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal Goiano-Urutaí Campus, Urutai, GO, Brazil.
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil.
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Guimarães ATB, de Oliveira Ferreira R, de Souza JM, da Costa Estrela D, Talvani A, Souza DMS, Rocha TL, Malafaia G. Evaluating the reproductive toxicology of tannery effluent in male SWISS mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:1440-1452. [PMID: 30340289 DOI: 10.1016/j.scitotenv.2018.08.253] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 08/19/2018] [Accepted: 08/19/2018] [Indexed: 06/08/2023]
Abstract
The transformation of skin in-natura into leather in tannery industries generates large volumes of organic matter that attract small mammals. i.e., rodents living close to these facilities. Animals foraging in the backyards of such industries get exposed to the effluent produced by them; however, attention has not been given to the impacts of such exposure on the reproductive biology of these animals. Thus, our study assessed whether the direct exposure to this effluent for periods longer than 90 days leads to reproductive loss in male Swiss mice. We assessed animals' sexual behavior at the end of the experimental period and analyzed their testicular histology, as well as semen quality and volume, besides measuring pro-inflammatory markers and assessing the reproductive performance of the exposed animals. Based on the herein collected data, mice exposed to the gross effluent collected in the backyard of a tannery industry, as well as to the effluent diluted in 5% of water, presented behavioral and histological changes in the testes, disorganized germinal cells in the seminiferous tubules and inflammatory process in intertubular spaces. The inflammatory process resulted from increased proinflammatory cytokine (IFN-gamma and CCL2) concentrations in the testes, fact that explained the larger number of sperm abnormalities and the reduced number of produced sperms. These factors, along with the previously reported changes, may have led to the low reproductive performance of animals exposed to the tested pollutant, which was assessed through the lethal dominant test. This pioneering article addressed the reproductive impact caused by the direct exposure of small rodents to tannery effluents. The research helped better understanding how these pollutants can influence natural ecosystems.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | - Raíssa de Oliveira Ferreira
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | - Joyce Moreira de Souza
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | | | - André Talvani
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, GO, Brazil
| | - Débora Maria Soares Souza
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, GO, Brazil
| | - Thiago Lopes Rocha
- Inflammation Immunobiology Lab, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil.
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12
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de Oliveira Mendes B, Mesak C, Calixto JED, Malafaia G. Mice exposure to haloxyfop-p-methyl ester at predicted environmentally relevant concentrations leads to anti-predatory response deficit. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:31762-31770. [PMID: 30242651 DOI: 10.1007/s11356-018-3222-5] [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: 03/25/2018] [Accepted: 09/13/2018] [Indexed: 06/08/2023]
Abstract
Although the efficiency of haloxyfop-p-methyl ester (HPME) as selective herbicide is acknowledged, its impact on non-target organisms is poorly known. It is not known whether the short exposure of mammals to low HPME concentrations (consistent with a realistic contamination scenario) poses risks to these animals. Thus, the aim of the current study is to evaluate the effects of HPME on the anti-predatory behavior of female Swiss mice exposed to it. The animals were divided in groups: non-exposed (control) and exposed (route: i.p., for 2 days) to different herbicide concentrations (2.7 × 10-4 g/kg and 2.7 × 10-2 g/kg of body weight), which were considered environmentally relevant predicted concentrations. The animals were subjected to the open field and elevated plus-maze tests; results showed that the HPME did not lead to anxiolytic or anxiety behavior, or to locomotive changes in the tested animals, fact that was confirmed through the Basso Mouse Scale for locomotion scores. On the other hand, animals exposed to the herbicide were incapable of recognizing the snake as potential predator. Animals in the control group, exposed to a real snake (Pantherophis guttatus) remained longer in the safety zone of the test device, presented lower frequency of self-grooming behaviors for a shorter period-of-time, besides showing longer freezing time, which was not observed in animals exposed to HPME. Therefore, our study indicates the ecotoxicological potential of the herbicide, since anti-predatory behavior disorders may affect preys' responses and population dynamics.
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Affiliation(s)
- Bruna de Oliveira Mendes
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Instituto Federal Goiano -Campus Urutaí, Urutaí, Goiás, Brazil
| | - Carlos Mesak
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Instituto Federal Goiano -Campus Urutaí, Urutaí, Goiás, Brazil
| | - José Eduardo Dias Calixto
- Post-Graduation Program in Forest Sciences, Universidade de Brasília, Brasília, Federal District, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Instituto Federal Goiano -Campus Urutaí, Urutaí, Goiás, Brazil.
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano -Campus Urutaí, Rodoroute Geraldo Silva Nascimento, 2.5 km, Zona Rural, Urutaí, Goiás, 75790-000, Brazil.
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13
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Mesak C, Sampaio DMDR, Ferreira RDO, Mendes BDO, Rodrigues ASDL, Malafaia G. The effects of predicted environmentally relevant concentrations of ZnO nanoparticles on the behavior of Gallus gallus domesticus (Phasianidae) chicks. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:1274-1282. [PMID: 30121481 DOI: 10.1016/j.envpol.2018.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 07/07/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
The toxicity of ZnO nanoparticles (NPs) has been the subject of several investigations; however, concentrations much higher than the ones potentially found in the environment are often tested. In addition, groups of animals such as birds have not been used as model in studies in this field, fact that creates an important ecotoxicological gap in them. The aim of the present study is to investigate the effects of the exposure to environmentally relevant concentrations of ZnO nanoparticles on the anti-predatory behavior of chicks (Gallus gallus domesticus). The test animals were daily exposed to an environmentally relevant concentration of ZnO nanoparticles (0.245 mg kg-1) and to a toxic concentration of it (245.26 mg kg-1) through intraperitoneal injection for two days. We set a control group for comparison purposes. According to our results, ZnO nanoparticles did not affect the locomotor activity of, and did not cause anxiolytic or anxiogenic effect on, birds in the open field test. However, based on the lowest cluster score recorded during the social aggregation test, chicks exposed to ZnO nanoparticles failed to recognize the grunt of a hawk (Rupornis magnirostris) as predatory threat. Only birds in the control group recognized the test snake (Pantherophis guttatus) as potential predator. The higher Zn concentration in the brains of animals exposed to ZnO nanoparticles evidenced the capacity of these nanomaterials to cross the blood-brain barrier, even at low concentrations. This blood-brain barrier crossing could have affected the structures or neuronal mechanisms that modulate the defensive response of birds. Assumingly, even the minimal exposure to low concentrations of ZnO nanoparticles can affect birds. Our outcomes corroborate previous studies about the biological risks of water surface contamination by metal-based nanomaterials.
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Affiliation(s)
- Carlos Mesak
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Douglas Marcel Dos Reis Sampaio
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Raíssa de Oliveira Ferreira
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Bruna de Oliveira Mendes
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil.
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14
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de Faria DBG, Montalvão MF, Chagas TQ, Araújo APC, Souza JMD, Mendes BO, Rodrigues ASL, Malafaia G. Behavioral changes in Japanese quails exposed to predicted environmentally relevant abamectin concentrations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 636:1553-1564. [PMID: 29913616 DOI: 10.1016/j.scitotenv.2018.04.293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/21/2018] [Accepted: 04/22/2018] [Indexed: 06/08/2023]
Abstract
Abamectin (ABA) toxicity in fish, amphibian and mammals was already proven, but its effect on birds is almost unknown. Thus, the aim of our study is to assess the impact of exposure to water with ABA for 40 days at predicted environmentally relevant concentrations on the behavior of female Japanese quails (Coturnix coturnix japonica). The three following experimental groups (n = 10 each) were set: "control", quails exposed to drinking water, without ABA, "EC1x" and "EC1000x" (0.31 mg a.i./L and 310.0 a.i./L, respectively; via commercial formulation Kraft® 36EC). The open field test showed anxiolytic response in birds exposed to ABA. These birds did not show locomotor changes or aggressive behavior in the aggressiveness test. Quails exposed to the pesticide did not react to the introduction of an object in the experimental box during the object recognition test, and it suggested perception deficit due to ABA. Moreover, these birds did not recognize the cat (Felix catus) and the vocalization of a hawk (Rupornis magnirostris) as potential predatory threats. These responses also suggest anti-predatory behavior deficit due to the pesticide. Thus, our study is pioneer in showing that water with ABA, at tested concentrations, influences the behavior of C. coturnix japonica, as well as in highlighting the potential impacts of this pesticide on this group of birds.
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Affiliation(s)
- Denise Braga Gomes de Faria
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Sciences and Technology - Urutaí Campus, GO, Brazil
| | - Mateus Flores Montalvão
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Sciences and Technology - Urutaí Campus, GO, Brazil
| | - Thales Quintão Chagas
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Sciences and Technology - Urutaí Campus, GO, Brazil
| | - A P C Araújo
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Sciences and Technology - Urutaí Campus, GO, Brazil
| | - J M de Souza
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Sciences and Technology - Urutaí Campus, GO, Brazil
| | - B O Mendes
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Sciences and Technology - Urutaí Campus, GO, Brazil
| | - A S L Rodrigues
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Sciences and Technology - Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Sciences and Technology - Urutaí Campus, GO, Brazil.
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15
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de Souza JM, Rabelo LM, de Faria DBG, Guimarães ATB, da Silva WAM, Rocha TL, Estrela FN, Chagas TQ, de Oliveira Mendes B, Malafaia G. The intake of water containing a mix of pollutants at environmentally relevant concentrations leads to defensive response deficit in male C57Bl/6J mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:186-197. [PMID: 29432930 DOI: 10.1016/j.scitotenv.2018.02.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 02/03/2018] [Accepted: 02/03/2018] [Indexed: 06/08/2023]
Abstract
Previous studies have individually confirmed the toxic effects from different pollutants on mammals. However, effects resulting from the exposure of these animals to multi-pollutant mixes have not been studied so far. Thus, the aim of the current study is to assess the effect from the chronic exposure (105days) of C57Bl/6J mice to a mix of pollutants on their response to potential predators. In order to do so, the following groups were formed: "control", "Mix 1× [compounds from 15 pollutants identified in surface waters at environmentally relevant concentration (ERC)]", "Mix 10×" and "Mix 25×" (concentrations 10 and 25 times higher than the ERC). From the 100th experimental day on, the animals were subjected to tests in order to investigate whether they showed locomotor, visual, olfactory and auditory changes, since these abilities are essential to their anti-predatory behavior. Next, the animals' behavior towards potential predators (Felis catus and Pantherophis guttatus) was assessed. The herein collected data did not show defensive response from any of the experimental groups to the predatory stimulus provided by P. guttatus. However, the control animals, only, presented anti-predatory behavior when F. catus was introduced in the apparatus, fact that suggests defensive response deficit resulting from the treatments. Thus, the current study is pioneer in showing that the chronic intake of water containing a mix of pollutants (even at low concentrations) leads to behavioral disorders able to affect the survival and population dynamics of mammalian species at ecological level.
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Affiliation(s)
- Joyce Moreira de Souza
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | | | - Denise Braga Gomes de Faria
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Wellington Alves Mizael da Silva
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | | | | | - Bruna de Oliveira Mendes
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil.
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16
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Amaral DFD, Montalvão MF, Mendes BDO, de Souza JM, Chagas TQ, Rodrigues ASDL, Malafaia G. Insights about the toxic effects of tannery effluent on Lithobates catesbeianus tadpoles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 621:791-801. [PMID: 29202290 DOI: 10.1016/j.scitotenv.2017.11.310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 11/26/2017] [Accepted: 11/27/2017] [Indexed: 06/07/2023]
Abstract
Tannery industries are considered highly polluting due to the large production of polluted wastewater [untreated tannery effluent (UTE)]. Although previous studies have already shown the consequences from fish, birds and mammals' exposure to this pollutant, little is known about its toxicological effect on representatives of class amphibian. Thus, we aim at assessing whether short-term UTE exposure, even at low concentrations (0.2% UTE diluted in water), would be able to induce behavioral, morphological and cyto-genotoxic changes in L. catesbeianus tadpoles. In order to do so, two experimental groups were set (control and tannery effluent) and exposed, or not, to UTE for seven days. A positive control group (cyclophosphamide) was included in the experimental design in order to assess cyto-genotoxicity. Our behavioral results showed that tadpoles exposed to the contaminant presented abnormal responses in the predator-response test; therefore, it evidenced losses in their capacity to recognize chemical olfactory cues of a potential predator. We also searched for changes in mouth length, in dentition, in body length before and after the eyes of animals exposed to UTE. Besides, we observed higher nuclear abnormality frequency in the circulating erythrocytes of tadpoles exposed to the contaminant, as well as in animals belonging to the positive control group. Some of the observed abnormalities were micronuclei, binucleated, notched, kidney-shaped and blebbed cells, multilobulated nuclei, as well as lower mitotic index. Therefore, our data confirm the hypothesis that UTE causes behavioral, morphological and cyto-genotoxic changes in L. catesbeianus tadpoles, fact that opens new perspectives to other investigations about how and which UTE constituents were responsible for the observed effects.
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Affiliation(s)
- Diogo Ferreira do Amaral
- Post-Graduation Program in the Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil
| | - Mateus Flores Montalvão
- Post-Graduation Program in the Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil
| | - Bruna de Oliveira Mendes
- Post-Graduation Program in the Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil
| | - Joyce Moreira de Souza
- Post-Graduation Program in the Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil
| | - Thales Quintão Chagas
- Post-Graduation Program in the Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Post-Graduation Program in the Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil; Biologigal Sciences Department, Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in the Conservation of Cerrado Natural Resources, Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil; Biologigal Sciences Department, Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, GO, Brazil; Post-Graduation Program in Animal Biodiversity, Federal University of Goiás, Samambaia Campus, Goiânia, GO, Brazil.
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17
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Cardoso LS, Estrela FN, Chagas TQ, da Silva WAM, Costa DRDO, Pereira I, Vaz BG, Rodrigues ASDL, Malafaia G. The exposure to water with cigarette residue changes the anti-predator response in female Swiss albino mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:8592-8607. [PMID: 29318484 DOI: 10.1007/s11356-017-1150-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
Recent studies have shown that cigarette consumption affects much more than human health. Smoked cigarette butt (SCB) disposal into the environment can bring little-known negative biological consequences to mammals, since it contains many organic and inorganic toxic chemical constituents. Thus, we aim at assessing whether the ingestion of water with leached SCB for 60 days by female Swiss mice changes their defensive behavioral response to potential predators (cats and snakes). We worked with the following groups of animals: control (pollutant-free water), water with environmental concentration of SCB (1.9 μg/L of nicotine), and concentration 1000 times higher (EC1000×). Our data show that the treatments did not cause locomotor, visual, auditory, and olfactory deficit in the animals. However, we observed that the animals exposed to the pollutants did not present behavioral differences in the test session with or without the snake. On the other hand, animals in all groups showed defensive behavior when the test was conducted with the cat in the apparatus. However, female mice presented weaker response than the control. Thus, our data point towards the potential neurotoxic damage caused to mice who have ingested water with SCB residues, even at low concentrations.
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Affiliation(s)
- Letícia Silva Cardoso
- Biological Research Laboratory, Goiano Federal Institute-Urutá Campos, Urutá, GO, Brazil
| | - Fernanda Neves Estrela
- Biological Research Laboratory, Goiano Federal Institute-Urutá Campos, Urutá, GO, Brazil
| | - Thales Quintão Chagas
- Biological Research Laboratory, Goiano Federal Institute-Urutá Campos, Urutá, GO, Brazil
| | - Wellington Alves Mizael da Silva
- Post-Graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution-Urutaí Campus, Urutaí, GO, Brazil
| | | | - Igor Pereira
- Post-Graduation Program in Chemistry, Goiás Federal University-Samambaia Campus, Goiânia, GO, Brazil
| | - Boniek Gontijo Vaz
- Post-Graduation Program in Chemistry, Goiás Federal University-Samambaia Campus, Goiânia, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Post-Graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution-Urutaí Campus, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute-Urutá Campos, Urutá, GO, Brazil.
- Post-Graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution-Urutaí Campus, Urutaí, GO, Brazil.
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, 75790-000, Brazil.
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18
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Quintão TC, Rabelo LM, Alvarez TGS, Guimarães AT, Rodrigues ASL, Cardoso LS, Ferreira RO, Malafaia G. Precopulatory sexual behavior of male mice is changed by the exposure to tannery effluent. CHEMOSPHERE 2018; 195:312-324. [PMID: 29272800 DOI: 10.1016/j.chemosphere.2017.12.087] [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: 10/06/2017] [Revised: 12/12/2017] [Accepted: 12/13/2017] [Indexed: 06/07/2023]
Abstract
Although the toxic potential of tannery effluents (TE) is acknowledged, the impacts these residues have on mammals who intake water contaminated with this pollutant are not completely known. Thus, in order to broaden the knowledge about how these contaminants affect the biota, the aim of the current study is to assess different behavioral categories (e.g.: sexual odor preference, opposite-sex attraction, and sexual discrimination) related to the sexual motivation and pre-copulation of male Swiss mice subjected to TE intake for 30 days, at concentrations 0.8% and 22%. The animals were subjected to locomotor performance evaluation through the Basso Mouse Scale (BMS), as well as to the open field (OF), odor preference (OPT), sexual orientation (SOT) and to scent marking tests (SMT) one week before the experiment ended. Our results evidenced that the treatments did not affect the animals' locomotor activity (in OF and BMS) or caused changes compatible to anxiogenic or anxiolytic behavior (in OF). However, mice exposed to TE (at both concentrations) presented discriminatory capacity deficit in the OPT test at the time to distinguish conspecific odors from the same sex, and from the opposite sex. They randomly explored (without preference) males and females, did not responded to stimuli in the SOT test, as well as did not appear capable of detecting female odor (in estrus phase) during the SMT. Thus, the current study was pioneer in evidencing that TE can influence the reproduction and the population dynamics of small rodents who intake water contaminated with the pollutant.
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Affiliation(s)
- Thales Chagas Quintão
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | | | - T G S Alvarez
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - A T Guimarães
- Post-graduation Program in the Conservation of Cerrado Natural Resources and Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - A S L Rodrigues
- Post-graduation Program in the Conservation of Cerrado Natural Resources and Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - L S Cardoso
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - R O Ferreira
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Post-graduation Program in the Conservation of Cerrado Natural Resources and Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil.
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