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Molés G, Connolly M, Valdehita A, Pulido-Reyes G, Fernandez-Cruz ML, Flahaut E, Navas JM. Testing the Aquatic Toxicity of 2D Few-Layer Graphene Inks Using Rainbow Trout ( Oncorhynchus mykiss): In Vivo and In Vitro Approaches to Support an SSbD Assessment. Toxics 2024; 12:97. [PMID: 38393192 PMCID: PMC10892222 DOI: 10.3390/toxics12020097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/15/2024] [Accepted: 01/21/2024] [Indexed: 02/25/2024]
Abstract
Graphene-based conductive inks offer attractive possibilities in many printing technology applications. Often, these inks contain a mixture of compounds, such as solvents and stabilizers. For the safe(r) and sustainable use of such materials in products, potentially hazardous components must be identified and considered in the design stage. In this study, the hazards of few-layer graphene (FLG)-based ink formulations were tested in fish using in vitro (RTL-W1 cell line) and in vivo aquatic ecotoxicity tests (OECD TG 203). Five ink formulations were produced using different processing steps, containing varying amounts of solvents and stabilizers, with the end products formulated either in aqueous solutions or in powder form. The FLG ink formulations with the highest contents of the stabilizer sodium deoxycholate showed greater in vitro cytotoxic effects, but they did not provoke mortality in juvenile rainbow trout. However, exposure led to increased activities of the cytochrome P450 1a (Cyp1a) and Cyp3a enzymes in the liver, which play an essential role in the detoxification of xenobiotics, suggesting that any effects will be enhanced by the presence of the stabilizers. These results highlight the importance of an SSbD approach together with the use of appropriate testing tools and strategies. By incorporating additional processing steps to remove identified cytotoxic residual solvents and stabilizers, the hazard profile of the FLG inks improved, demonstrating that, by following the principles of the European Commission's safe(r) and sustainable by design (SSbD) framework, one can contribute to the safe(r) and sustainable use of functional and advanced 2D materials in products.
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Affiliation(s)
- Gregorio Molés
- Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Ctra. de La Coruña, km 7.5, 28040 Madrid, Spain; (G.M.); (M.C.); (A.V.); (G.P.-R.); (M.L.F.-C.)
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal
| | - Mona Connolly
- Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Ctra. de La Coruña, km 7.5, 28040 Madrid, Spain; (G.M.); (M.C.); (A.V.); (G.P.-R.); (M.L.F.-C.)
| | - Ana Valdehita
- Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Ctra. de La Coruña, km 7.5, 28040 Madrid, Spain; (G.M.); (M.C.); (A.V.); (G.P.-R.); (M.L.F.-C.)
| | - Gerardo Pulido-Reyes
- Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Ctra. de La Coruña, km 7.5, 28040 Madrid, Spain; (G.M.); (M.C.); (A.V.); (G.P.-R.); (M.L.F.-C.)
| | - Maria L. Fernandez-Cruz
- Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Ctra. de La Coruña, km 7.5, 28040 Madrid, Spain; (G.M.); (M.C.); (A.V.); (G.P.-R.); (M.L.F.-C.)
| | - Emmanuel Flahaut
- Centre Inter-Universitaire de Recherche et D’Ingénierie en Matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS), 16 Av Edouard Belin, 31400 Toulouse, France;
| | - José M. Navas
- Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Ctra. de La Coruña, km 7.5, 28040 Madrid, Spain; (G.M.); (M.C.); (A.V.); (G.P.-R.); (M.L.F.-C.)
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Valdehita A, Fernández-Cruz ML, Navas JM. The Potentiating Effect of Graphene Oxide on the Arylhydrocarbon Receptor (AhR)-Cytochrome P4501A (Cyp1A) System Activated by Benzo(k)fluoranthene (BkF) in Rainbow Trout Cell Line. Nanomaterials (Basel) 2023; 13:2501. [PMID: 37764529 PMCID: PMC10534689 DOI: 10.3390/nano13182501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/30/2023] [Accepted: 09/02/2023] [Indexed: 09/29/2023]
Abstract
The increasing use of graphene oxide (GO) will result in its release into the environment; therefore, it is essential to determine its final fate and possible metabolism by organisms. The objective of this study was to assess the possible role of the aryl hydrocarbon receptor (AhR)-dependent cytochrome P4501A (Cyp1A) detoxification activities on the catabolism of GO. Our hypothesis is that GO cannot initially interact with the AhR, but that after an initial degradation caused by other mechanisms, small fractions of GO could activate the AhR, inducing Cyp1A. The environmental pollutant benzo(k)fluoranthene (BkF) was used for the initial activation of the AhR in the rainbow trout (Oncorhynchus mykiss) cell line RTL-W1. Pre-, co-, and post-exposure experiments with GO were performed and Cyp1A induction was monitored. The strong stimulation of Cyp1A observed in cells after exposure to GO, when BkF levels were not detected in the system, suggests a direct action of GO. The role of the AhR was confirmed by a blockage of the observed effects in co-treatment experiments with αNF (an AhR antagonist). These results suggest a possible role for the AhR and Cyp1A system in the cellular metabolism of GO and that GO could modulate the toxicity of environmental pollutants.
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Affiliation(s)
| | | | - José M. Navas
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), CSIC, Carretera de la Coruña Km 7,5, E-28040 Madrid, Spain; (A.V.); (M.L.F.-C.)
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Hidayat R, Shoieb SM, Mosa FES, Barakat K, Brocks DR, Isse FA, Gerges SH, El-Kadi AOS. 16R-HETE and 16S-HETE alter human cytochrome P450 1B1 enzyme activity probably through an allosteric mechanism. Mol Cell Biochem 2023:10.1007/s11010-023-04801-4. [PMID: 37436655 DOI: 10.1007/s11010-023-04801-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/25/2023] [Indexed: 07/13/2023]
Abstract
Cytochrome P450 1B1 (CYP1B1) has been widely associated with the development of cardiac pathologies due to its ability to produce cardiotoxic metabolites like midchain hydroxyeicosatetraenoic acids (HETEs) from arachidonic acid (AA) through an allylic oxidation reaction. 16-HETE is a subterminal HETE that is also produced by CYP-mediated AA metabolism. 19-HETE is another subterminal HETE that was found to inhibit CYP1B1 activity, lower midchain HETEs, and have cardioprotective effects. However, the effect of 16-HETE enantiomers on CYP1B1 has not yet been investigated. We hypothesized that 16(R/S)-HETE could alter the activity of CYP1B1 and other CYP enzymes. Therefore, this study was carried out to investigate the modulatory effect of 16-HETE enantiomers on CYP1B1 enzyme activity, and to examine the mechanisms by which they exert these modulatory effects. To investigate whether these effects are specific to CYP1B1, we also investigated 16-HETE modulatory effects on CYP1A2. Our results showed that 16-HETE enantiomers significantly increased CYP1B1 activity in RL-14 cells, recombinant human CYP1B1, and human liver microsomes, as seen by the significant increase in 7-ethoxyresorufin deethylation rate. On the contrary, 16-HETE enantiomers significantly inhibited CYP1A2 catalytic activity mediated by the recombinant human CYP1A2 and human liver microsomes. 16R-HETE showed stronger effects than 16S-HETE. The sigmoidal binding mode of the enzyme kinetics data demonstrated that CYP1B1 activation and CYP1A2 inhibition occurred through allosteric regulation. In conclusion, our study provides the first evidence that 16R-HETE and 16S-HETE increase CYP1B1 catalytic activity through an allosteric mechanism.
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Affiliation(s)
- Rahmat Hidayat
- Faculty of Pharmacy & Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AL, T6G 2E1, Canada
| | - Sherif M Shoieb
- Faculty of Pharmacy & Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AL, T6G 2E1, Canada
| | - Farag E S Mosa
- Faculty of Pharmacy & Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AL, T6G 2E1, Canada
| | - Khaled Barakat
- Faculty of Pharmacy & Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AL, T6G 2E1, Canada
| | - Dion R Brocks
- Faculty of Pharmacy & Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AL, T6G 2E1, Canada
| | - Fadumo A Isse
- Faculty of Pharmacy & Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AL, T6G 2E1, Canada
| | - Samar H Gerges
- Faculty of Pharmacy & Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AL, T6G 2E1, Canada
| | - Ayman O S El-Kadi
- Faculty of Pharmacy & Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AL, T6G 2E1, Canada.
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Santana MS, Domingues de Melo G, Sandrini-Neto L, Di Domenico M, Prodocimo MM. A meta-analytic review of fish antioxidant defense and biotransformation systems following pesticide exposure. Chemosphere 2022; 291:132730. [PMID: 34743868 DOI: 10.1016/j.chemosphere.2021.132730] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/23/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Pesticides reach aquatic ecosystems and interact with various targets in cells of fish and other living organisms. Toxicity originates during the metabolization process, which may produce toxic metabolites or reactive oxygen species (ROS). Ethoxyresorufin-O-deethylase (EROD), glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD) activities, and levels of reduced glutathione (GSH) indicate toxicants interacted with drug-metabolizing and antioxidant systems, i.e., they are biomarkers of biotransformation and oxidative stress. We meta-analytically quantified the impact of pesticides on the mean response and variability of these biomarkers. Our goals were to verify (i) the overall effect of pesticides on oxidative stress and biotransformation, and how each biomarker respond to exposure; (ii) how the life stage of fish (juvenile and adult) influence biomarkers variability and mean activity; (iii) to what extent fish sex (male, female or mixed-sex groups) modify pesticides toxicity; (iv) how different classes of pesticides, and the combination of their concentration and time of exposure, affect each biomarker. Overall, pesticides induced oxidative stress and the biotransformation system. Regardless of life stage, EROD mean activity increased significantly. In exposed juveniles, CAT and GST variability decreased and increased, respectively. CAT mean activity was higher in females, while EROD and GST activities increased in males after pesticide exposure. Organophosphorus (OPs) and organochlorine insecticides, along with imidazole and triazole fungicides, affected biomarkers the most, however the combined effect of concentration and time of exposure of OPs was not detected. Notably, imidazoles and triazoles classes increased EROD by more than 100%. Additionally, we identified research gaps, such as the lack of effect estimates of relevant pesticides on EROD (e.g., pyrethroids and neonicotinoids) and the small number of studies evaluating GSH on female fish. Future researchers may use these gaps as a guide towards enhanced experimental designs and, consequently, a better understanding of pesticide toxic effects on fish.
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Affiliation(s)
- Manuela S Santana
- Laboratório de Toxicologia Celular, Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, CEP 81.531-980, Curitiba, Paraná, Brazil; Laboratório de Ecologia Marinha. Centro de Estudos do Mar, Universidade Federal do Paraná, CEP 83255-976, Pontal do Paraná, Paraná, Brazil.
| | - Gabriel Domingues de Melo
- Programa de Pós-graduação em Sistemas Costeiros e Oceânicos, Centro de Estudos do Mar, Universidade Federal do Paraná, CEP 83255-976, Pontal do Paraná, Paraná, Brazil
| | - Leonardo Sandrini-Neto
- Laboratório de Ecologia Marinha. Centro de Estudos do Mar, Universidade Federal do Paraná, CEP 83255-976, Pontal do Paraná, Paraná, Brazil
| | - Maikon Di Domenico
- Laboratório de Ecologia Marinha. Centro de Estudos do Mar, Universidade Federal do Paraná, CEP 83255-976, Pontal do Paraná, Paraná, Brazil
| | - Maritana Mela Prodocimo
- Laboratório de Toxicologia Celular, Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, CEP 81.531-980, Curitiba, Paraná, Brazil
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Kartal ME, Bildik A. Assessment of pollution with biomarkers in fish culture. Environ Monit Assess 2022; 194:111. [PMID: 35048209 DOI: 10.1007/s10661-022-09774-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Biotransformation enzymes are stimulated or inhibited depending on the exposure to xenobiotics and widely used as a biomarker. In this study, EROD activity, GST activity, reduced GSH amount, amount of lipid peroxidation product MDA as oxidative stress parameter, and ACHE inhibition as a neuromuscular parameter were measured in liver and muscle tissues of rainbow trout (Oncorhynchus mykiss) produced in aquaculture of Kemer Dam and in concrete ponds located in Fethiye. Samples were collected in January and July from fish farming in net cages in Kemer Dam and concrete cages in Fethiye in order to evaluate seasonal changes. Also, physicochemical properties of water samples collected from trout farms were measured and evaluated together with five biomarkers. Significant ACHE inhibition was observed in both stations in parallel with the increase in ammonium nitrogen in the July period (p ≤ 0.05). In parallel with the increase in turbidity in the Kemer Dam, a significant increase in GSH, MDA level, and GST activity was detected (p ≤ 0.05). As a result of the assessment of all data, significant increases were detected in EROD induction, GST activity, MDA level, and ACHE inhibition in concrete cages in Fethiye when compared to Kemer Dam (p ≤ 0,05). It was observed that pollution was at a lower level in July compared to January, and in Kemer Dam compared to Fethiye.
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Affiliation(s)
- Mehmet Ersin Kartal
- Faculty of Veterinary Medicine, Department of Biochemistry, Adnan Menderes University, Aydın, Turkey.
| | - Ayşegül Bildik
- Faculty of Veterinary Medicine, Department of Biochemistry, Adnan Menderes University, Aydın, Turkey
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Woo SJ. Effects of benzo[a]pyrene exposure on black rockfish (Sebastes schlegelii): EROD activity, CYP1A protein, and immunohistochemical and histopathological alterations. Environ Sci Pollut Res Int 2022; 29:4033-4043. [PMID: 34402013 DOI: 10.1007/s11356-021-15949-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
Cytochrome P450 1A (CYP1A) is the major phase I of metabolic enzyme that plays essential roles in the detoxification of drugs and biotransformation of environmental pollutants. This study investigated CYP1A enzyme induction using EROD activity, CYP1A protein levels, and immunohistochemistry, along with histopathology of the liver, gills, kidneys, and intestine from the black rockfish, Sebastes schlegelii, exposed to benzo[a]pyrene (B[a]P). S. schlegelii has high risks of ingestion of sediment and absorption of heavy crude oil after accidental oil spills in Korea. This study thus exposed fish to B[a]P at 2, 20, and 200 μg/g body weight. EROD activity and CYP1A protein levels in hepatic microsomes had a positive correlation with the concentration of B[a]P (2-200 μg/g); in particular, exposure to 200 μg/g of B[a]P resulted in a 4- and 6-fold increase in hepatic EROD activity and CYP1A protein level, respectively. Hyperplasia of primary lamellar epithelium and atrophy of renal tubules were observed in the gills and kidney, respectively, following exposure to B[a]P at 200 μg/g. In contrast, severe histological alteration was not seen in intestinal tissues. Immunohistochemical analysis of the distribution of cellular CYP1A in four tissues showed strong immunostaining in the cytoplasm and nuclear membranes of the liver against B[a]P at 200 μg/g. Polycyclic aromatic hydrocarbons (PAHs), such as B[a]P, cause adverse histological changes in tissues of fish and provide evidence that PAH metabolism is inducible in fish liver, leading to increased CYP1A induction. Furthermore, the CYP1A induction in specific tissues might assist in monitoring and field assessment of marine ecosystems.
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Affiliation(s)
- Soo Ji Woo
- Department of Aquatic Life Medicine, Pukyong National University, Busan, 48513, Korea.
- Pathology Research Division, National Institute of Fisheries Science, 46083, Busan, Korea.
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Gustafsson J, Förlin L, Karlson AML, Bignert A, Dahlgren H, Parkkonen J, Asplund L. Correlating seasonal changes of naturally produced brominated compounds to biomarkers in perch from the Baltic Sea. Aquat Toxicol 2021; 240:105984. [PMID: 34627023 DOI: 10.1016/j.aquatox.2021.105984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 09/19/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
Hydroxylated polybrominated diphenyl ethers (OH-PBDEs), naturally produced by algae and cyanobacteria in the Baltic Sea, are potent disrupters of energy metabolism as well as endocrine disruptors and neurotoxins. In this study, European perch (Perca fluviatilis) from the Baltic Sea were sampled from May until October. OH-PBDEs and ten biomarkers were measured in each individual (n = 84 over 18 sampling time points) to study potential correlations between exposure to OH-PBDEs and changes in biomarkers. Several biomarkers showed significant non-linear seasonal variation. In the perch, ethoxyresorufin-O-deethylase (EROD) activity, plasma lactate concentration, and plasma glucose concentration showed a significant positive log-linear correlation with OH-PBDEs, whereas lipid percentage and liver somatic index showed a significant negative log-linear correlation with OH-PBDEs. These results strengthen the concern that OH-PBDEs could cause negative health effects for fish in the Baltic Sea.
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Affiliation(s)
- Johan Gustafsson
- Department of Environmental Science, Stockholm University, Stockholm, Sweden.
| | - Lars Förlin
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Agnes M L Karlson
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - Anders Bignert
- Department of Environmental Monitoring and Research, Swedish Museum of Natural History, Stockholm, Sweden
| | - Henrik Dahlgren
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
| | - Jari Parkkonen
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Lillemor Asplund
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
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Fanali LZ, De Oliveira C, Sturve J. Enzymatic, morphological, and genotoxic effects of benzo[a]pyrene in rainbow trout (Oncorhynchus mykiss). Environ Sci Pollut Res Int 2021; 28:53926-53935. [PMID: 34036510 DOI: 10.1007/s11356-021-14583-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Fish have defense systems that are capable of repairing damages caused by xenobiotics like benzo[a]pyrene (BaP), so the aims of this study were to identify BaP toxicity in melanomacrophages (MMs) cytoskeleton, evaluate the melanin area in MMs, and analyze genotoxicity. Rainbow trout juveniles (n = 24) were split in 48h and 7d treatments that received 2 mg/kg of BaP. After the experiment, blood samples were collected and liver was removed, to proceed with the analysis: EROD activity, MMs melanin area quantification, melanosomes movements, and a genotoxicity test. The results revealed increased in EROD activity after 48-h and 7-day BaP exposure. The group 7d displayed a reduction in MMs pigmented area, melanosomes aggregation, in addition to an increased frequency of micronucleus. By means of the EROD assay, it was possible to confirm the activation of BaP biotransformation system. The impairment of the melanosomes' movements possibly by an inactivation of the protein responsible for the pigment dispersion consequently affects the melanin area and thus might negatively impact the MMs detoxification capacity. In addition to this cytotoxicity, the increased frequency of micronucleus might also indicate the genotoxicity of BaP in this important fish species.
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Affiliation(s)
- Lara Zácari Fanali
- Graduate Program in Animal Biology, Universidade Estadual Paulista (UNESP), São José do Rio Preto, São Paulo, 15054-000, Brazil.
| | - Classius De Oliveira
- Department of Biology, Universidade Estadual Paulista (UNESP), São José do Rio Preto, São Paulo, 15054-000, Brazil
| | - Joachim Sturve
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, 405 30, Göteborg, Sweden
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Johann S, Goßen M, Mueller L, Selja V, Gustavson K, Fritt-Rasmussen J, Wegeberg S, Ciesielski TM, Jenssen BM, Hollert H, Seiler TB. Comparative toxicity assessment of in situ burn residues to initial and dispersed heavy fuel oil using zebrafish embryos as test organisms. Environ Sci Pollut Res Int 2021; 28:16198-16213. [PMID: 33269444 PMCID: PMC7969557 DOI: 10.1007/s11356-020-11729-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 11/17/2020] [Indexed: 04/16/2023]
Abstract
In situ burning (ISB) is discussed to be one of the most suitable response strategies to combat oil spills in extreme conditions. After burning, a highly viscous and sticky residue is left and may over time pose a risk of exposing aquatic biota to toxic oil compounds. Scientific information about the impact of burn residues on the environment is scarce. In this context, a comprehensive ISB field experiment with approx. 1000L IFO 180 was conducted in a fjord in Greenland. The present study investigated the toxicity of collected ISB residues to early life stages of zebrafish (Danio rerio) as a model for potentially exposed pelagic organisms. The toxicity of ISB residues on zebrafish embryos was compared with the toxicity of the initial (unweathered) IFO 180 and chemically dispersed IFO 180. Morphological malformations, hatching success, swimming behavior, and biomarkers for exposure (CYP1A activity, AChE inhibition) were evaluated in order to cover the toxic response on different biological organization levels. Across all endpoints, ISB residues did not induce greater toxicity in zebrafish embryos compared with the initial oil. The application of a chemical dispersant increased the acute toxicity most likely due to a higher bioavailability of dissolved and particulate oil components. The results provide insight into the adverse effects of ISB residues on sensitive life stages of fish in comparison with chemical dispersant application.
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Affiliation(s)
- Sarah Johann
- Department of Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438, Frankfurt am Main, Germany.
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany.
| | - Mira Goßen
- Department of Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438, Frankfurt am Main, Germany
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
| | - Leonie Mueller
- Department of Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438, Frankfurt am Main, Germany
| | - Valentina Selja
- Department of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, 31000, Osijek, Croatia
| | - Kim Gustavson
- Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - Janne Fritt-Rasmussen
- Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - Susse Wegeberg
- Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | | | - Bjørn Munro Jenssen
- Department of Biology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Henner Hollert
- Department of Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438, Frankfurt am Main, Germany
| | - Thomas-Benjamin Seiler
- Ruhr District Institute of Hygiene, Rotthauser Straße 21, 45879, Gelsenkirchen, Germany.
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Eze CT, Michelangeli F, Otitoloju AA, Eze OO, Ibraheem O, Ogbuene EB, Ogunwole GA. Occurrence of chemical pollutants in major e-waste sites in West Africa and usefulness of cytotoxicity and induction of ethoxyresorufin-O-deethylase ( EROD) in determining the effects of some detected brominated flame retardants and e-waste soil-derived extracts. Environ Sci Pollut Res Int 2021; 28:10832-10846. [PMID: 33099733 DOI: 10.1007/s11356-020-11155-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 10/05/2020] [Indexed: 06/11/2023]
Abstract
We investigated the occurrence of chemical pollutants in major e-waste sites in West Africa and usefulness of cytotoxicity and induction of ethoxyresorufin-O-deethylase (EROD) in determining the effects of some detected brominated flame retardants (BFRs) and e-waste soil-derived extracts. Analysis of the e-waste site samples using AAS and GC-MS techniques revealed the presence of a range of toxic metals as well as persistent and toxic organic pollutants, respectively, in the vicinity of the e-waste sites. As expected, the occurrence (%) of all the detected chemical pollutants in experimental soils significantly (P < 0.05) differs from occurrence (%) in control soil. The calculated LC50 values on RBL-2H3 cells of the detected tetrabromobisphenol A (TBBPA) and hexabromocyclododecane (HBCD) were 3.75 μM and 4.2 μM, respectively. Tribromophenol (TBP), dibromobiphenyl (DBB), and decabromodiphenyl ether (DBDE) were remarkably less toxic on RBL-2H3 cells compared with TBBPA and HBCD as they did not reduce RBL-2H3 cell viability below 50% in the tested concentration range (0-20 μM). The study revealed that TBBPA and HBCD could induce significant RBL-2H3 cell death through caspase-dependent apoptosis. The study further shows that the cytotoxicity of some of these BFRs could increase synergistically when in mixtures and potentially activate inflammation through the stimulation of mast cell degranulation. The e-waste soil-derived extracts induced a concentration-dependent increase in EROD activity in the exposed RTG-W1 cells. Ultimately, nonpolar extracts had higher EROD-inducing potency compared with polar extracts and hence suggesting the presence in higher amounts of AhR agonists in nonpolar e-waste soil-derived extracts than polar extracts. Overall, there is urgent need for actions in order to improve the environmental quality of the e-waste sites.
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Affiliation(s)
- Chukwuebuka ThankGod Eze
- Department of Biochemistry, Federal University Oye-Ekiti, Ekiti, Ekiti State, Nigeria.
- Department of Zoology, University of Lagos, Akoka, Lagos State, Nigeria.
| | | | | | - Obianuju Oluchukwu Eze
- Department of Biochemistry, University of Nigeria, Nsukka Campus, Nsukka, Enugu State, Nigeria
| | - Omodele Ibraheem
- Department of Biochemistry, Federal University Oye-Ekiti, Ekiti, Ekiti State, Nigeria
| | - Emeka Bright Ogbuene
- Centre for Environmental Management and Control, University of Nigeria, Enugu Campus, Nsukka, Enugu State, Nigeria
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11
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Adams JE, Brown RS, Hodson PV. The bioavailability of oil droplets trapped in river gravel by hyporheic flows. Environ Pollut 2021; 269:116110. [PMID: 33310493 DOI: 10.1016/j.envpol.2020.116110] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/25/2020] [Accepted: 10/29/2020] [Indexed: 06/12/2023]
Abstract
Little is known about the fate of oil spills in rivers. Hyporheic flows of water through river sediments exchange surface and groundwater and create upwelling and downwelling zones that are important for fish spawning and embryo development. Risk assessments of oil spills to rivers do not consider the potential for hyporheic flows to carry oil droplets into sediments and the potential for prolonged exposure of fish to trapped oil. This project assessed whether oil droplets in water flowing through gravel will be trapped and whether hydrocarbons partitioning from trapped oil droplets are bioavailable to fish. Columns packed with gravel were injected with oil-in-water dispersions prepared with light crude, medium crude, diluted bitumens, and heavy fuel oil to generate a series of oil droplet loadings. The concentrations of oil trapped in the gravel increased with oil loading and viscosity. When the columns were perfused with clean water, oil concentrations in column effluents decreased to the detection limit within the first week of water flow, with sporadically higher concentrations associated with oil droplet release. Despite the low concentrations of hydrocarbons measured in column effluent, hydrocarbons were bioavailable to juvenile rainbow trout (Oncorhynchus mykiss) for more than three weeks of water flow, as indicated by strong induction of liver ethoxyresorufin-o-deethylase activity. These findings indicate that ecological risk assessments and spill response should identify and protect areas in rivers sensitive to contaminant trapping.
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Affiliation(s)
- Julie E Adams
- School of Environmental Studies, Queen's University, 116 Barrie St, Kingston, ON, K7L3N6, Canada.
| | - R Stephen Brown
- School of Environmental Studies, Queen's University, 116 Barrie St, Kingston, ON, K7L3N6, Canada; Department of Chemistry, Queen's University, 90 Bader Ln, Kingston, ON, K7L3N6, Canada.
| | - Peter V Hodson
- School of Environmental Studies, Queen's University, 116 Barrie St, Kingston, ON, K7L3N6, Canada; Department of Biology, Queen's University, 116 Barrie St, Kingston, ON, K7L3N6, Canada.
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12
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Santos C, Bueno Dos Reis Martinez C. Biotransformation in the fish Prochilodus lineatus: An organ-specific approach to cyp1a gene expression and biochemical activity. Environ Toxicol Pharmacol 2020; 80:103467. [PMID: 32791344 DOI: 10.1016/j.etap.2020.103467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 07/09/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
The biotransformation ability of the organism is the result of organ-specific responses. This paper presents a molecular and biochemical approach to elucidate the biotransformation mechanisms in different organs of Prochilodus lineatus induced at 6, 24, and 96 h after a benzo[a]pyrene (B[a]P) injection. The induction in cyp1a transcription showed an organ-specific intensity at every tested time time. The EROD (ethoxyresorufin-O-deethylase) activity increased rapidly (6 h) in the liver and the kidney; the gills and the brain showed an increase at 24 h; and the gills demonstrated the highest activity among all the organs tested. There was no increase in glutathione S-transferase (GST) activity or lipoperoxidation. The decreased hepatic glutathione content (GSH) may be due to its role as an antioxidant. B[a]P was detected in the bile, confirming the xenobiotic efflux from the metabolizing organs. The gills, liver, brain, and kidney of P. lineatus presented an integrated mechanism to deal with the xenobiotic biotransformation.
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Affiliation(s)
- Caroline Santos
- Department of Physiological Sciences, State University of Londrina, Rod. Celso Garcia Cid, km 380, Londrina, Parana, 86057-970, Brazil
| | - Claudia Bueno Dos Reis Martinez
- Department of Physiological Sciences, State University of Londrina, Rod. Celso Garcia Cid, km 380, Londrina, Parana, 86057-970, Brazil.
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13
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Seth A, Ojha PK, Roy K. QSAR modeling with ETA indices for cytotoxicity and enzymatic activity of diverse chemicals. J Hazard Mater 2020; 394:122498. [PMID: 32199202 DOI: 10.1016/j.jhazmat.2020.122498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/07/2020] [Accepted: 03/07/2020] [Indexed: 06/10/2023]
Abstract
The discharge of huge amount of chemicals from industries into the environment has led to toxicity towards different living species. Therefore, risk assessment of these chemicals is essential. In order to comply with the ethical issues, in this present work, we have developed quantitative structure-activity relationship (QSAR) models for cytotoxicity against GFS (goldfish scale) tissue (Crassius auratus) and enzymatic activity against PLHC-1 cell line (topminnow hepatoma cell line) (Poeciliopsis lucida). The final models were developed by means of PLS (Partial Least Squares) regression method applying only ETA (extended topochemical atom) descriptors. The results obtained from various validation parameters (obtained from the both datasets) suggested that the developed models are statistically robust and predictive. From the insights obtained from the models developed from the Neutral Red dye (NR) dataset, it can be concluded that presence of bulky atoms, unsaturation, branching and hetero atoms (most importantly N, Cl) enhance the cytotoxicity towards the Goldfish scale tissue. On the other hand, in case of the Ethoxyresorufin-O-deethylase (EROD) dataset, presence of higher electronegative atoms (O, Cl), polycyclic aromatic hydrocarbons (PAHs) with more number of rings and absence of polar groups and hydrogen bond acceptors enhance enzymatic activity of the PLHC-1 cell line.
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Affiliation(s)
- Arnab Seth
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Probir Kumar Ojha
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Kunal Roy
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India.
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14
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Johann S, Nüßer L, Goßen M, Hollert H, Seiler TB. Differences in biomarker and behavioral responses to native and chemically dispersed crude and refined fossil oils in zebrafish early life stages. Sci Total Environ 2020; 709:136174. [PMID: 31884285 DOI: 10.1016/j.scitotenv.2019.136174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/10/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
Petroleum products including crude oils and refined distillates are unique environmental pollutants consisting of thousands of compounds with varying physical-chemical properties and resulting toxicity for aquatic biota. Hence, for a reliable risk assessment individual petroleum product toxicity profiles are needed. Furthermore, the influence of oil spill response strategies like the application of chemical dispersants has to be implemented. The present study addressed the toxicity of water-accommodated fractions (WAFs) of two different oil types on fish early life stages on different biological organization levels in the laboratory model species Danio rerio. Experiments with a 3rd generation dispersant used in loading rated resembling the exposure in experiments with chemically dispersed oils were included, enabling a direct comparability of results. This approach is of high importance as especially the investigation of dispersant toxicity in relevant exposure concentrations is rather scarce. Zebrafish embryos were exposed to different WAFs shortly after and up to 120 hour post fertilization (hpf). Besides phenotypic effects including edema and spine deformations, reduced responses to dark stimuli, increased CYP1A activity and marginal AChE inhibition were observed in sublethal effect concentrations. Both oil types had varying strength of toxicity, which did not correlate with corresponding chemical analysis of target PAHs. Chemically dispersed oils induced stronger acute toxicity in zebrafish embryos compared to native (initial) oil exposure, which was further reflected by very low exposure concentrations for biomarker endpoints. Based on a comparison to the dispersant alone, a higher toxicity of dispersed oils was related to a combination of dispersant toxicity and an elevated crude oil compound bioavailability, due to dispersion-related partitioning kinetics. In contrast to LEWAF and CEWAF neither typical morphological effects nor mechanism-specific toxicity were observed for the dispersant alone, indicating narcosis as the responsible cause of effects.
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Affiliation(s)
- Sarah Johann
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany.
| | - Leonie Nüßer
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
| | - Mira Goßen
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
| | - Henner Hollert
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany; Department of Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany
| | - Thomas Benjamin Seiler
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany.
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15
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Meyer-Alert H, Larsson M, Hollert H, Keiter SH. Benzo[a]pyrene and 2,3-benzofuran induce divergent temporal patterns of AhR-regulated responses in zebrafish embryos (Danio rerio). Ecotoxicol Environ Saf 2019; 183:109505. [PMID: 31394372 DOI: 10.1016/j.ecoenv.2019.109505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/28/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
Biotests like the fish embryo toxicity test have become increasingly popular in risk assessment and evaluation of chemicals found in the environment. The large range of possible endpoints is a big advantage when researching on the mode of action of a certain substance. Here, we utilized the frequently used model organism zebrafish (Danio rerio) to examine regulative mechanisms in the pathway of the aryl-hydrocarbon receptor (AHR) in early development. We exposed embryos to representatives of two chemical classes known to elicit dioxin-like activity: benzo[a]pyrene for polycyclic aromatic hydrocarbons (PAHs) and 2,3-benzofuran for polar O-substituted heterocycles as a member of heterocyclic compounds in general (N-, S-, O-heterocycles; NSO-hets). We measured gene transcription of the induced P450 cytochromes (cyp1), their formation of protein and biotransformation activity throughout the whole embryonic development until 5 days after fertilization. The results show a very specific time course of transcription depending on the chemical properties (e.g. halogenation, planarity, Kow), the physical decay and the biodegradability of the tested compound. However, although this temporal pattern was not precisely transferable onto the protein level, significant regulation in enzymatic activity over time could be detected. We conclude, that a careful choice of time and end point as well as consideration of the chemical properties of a substance are fairly important when planning, conducting and especially evaluating biotests.
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Affiliation(s)
- Henriette Meyer-Alert
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany.
| | - Maria Larsson
- Man-Technology-Environment Research Centre, School of Science and Technology, Örebro University, Fakultetsgatan 1, 701 82, Örebro, Sweden
| | - Henner Hollert
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
| | - Steffen H Keiter
- Man-Technology-Environment Research Centre, School of Science and Technology, Örebro University, Fakultetsgatan 1, 701 82, Örebro, Sweden
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16
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Orrego R, Hewitt LM, McMaster M, Chiang G, Quiroz M, Munkittrick K, Gavilán JF, Barra R. Assessing wild fish exposure to ligands for sex steroid receptors from pulp and paper mill effluents in the Biobio River Basin, Central Chile. Ecotoxicol Environ Saf 2019; 171:256-263. [PMID: 30612013 DOI: 10.1016/j.ecoenv.2018.12.092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 12/18/2018] [Accepted: 12/27/2018] [Indexed: 06/09/2023]
Abstract
Bioactive substances in the Biobio River Basin in Chile were examined by deploying Semi Permeable Membrane Devices (SPMDs) upstream and downstream of 4 pulp mill effluent discharges. Androgenic and estrogenic activity of SPMD extracts were then evaluated using in vitro fish sex steroid receptor binding assays. The results indicated the occurrence of estrogenic type compounds associated with one of the mill discharges. A significant correlation among the presence of these compounds, an increase in gonadosomatic index GSI and induction of hepatic EROD activity of two native fish species was observed. However, no significant presence of mature oocytes in female gonads was detected. Although EROD induction was observed in sites impacted by mill effluents, an increase of its activity occurred towards the downstream areas, suggesting other non-mill sources. More research is needed to understand the environmental changes in context of the new technological improvements in treatment systems to MBBR (Moving Bed Biofilm Reactor) recently implemented by the pulp mill industries.
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Affiliation(s)
- Rodrigo Orrego
- Natural Science Institute Alexander von Humboldt, Aquatic Toxicology Laboratory, Faculty of Marine Sciences and Biological Resources, University of Antofagasta, Av. Universidad de Antofagasta, 02800 Antofagasta, Chile.
| | - L Mark Hewitt
- Environment and Climate Change Canada, Burlington, Ontario, Canada
| | - Mark McMaster
- Environment and Climate Change Canada, Burlington, Ontario, Canada
| | | | - Mauricio Quiroz
- Department of Cellular Biology, Faculty of Biological Sciences, University of Concepcion, Chile
| | - Kelly Munkittrick
- Department of Biology, Wilfrid Laurier University, Waterloo, Ontario, Canada
| | - Juan F Gavilán
- Department of Cellular Biology, Faculty of Biological Sciences, University of Concepcion, Chile
| | - Ricardo Barra
- Department of Aquatic Systems, Faculty of Environmental Sciences and EULA-Chile Centre, University of Concepción, Concepción, Chile
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17
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Pauletto M, Lopparelli RM, Pegolo S, Armani M, Zorzan E, Giantin M, Bertotto D, Gallocchio F, Zancanella V, Capolongo F, Binato G, Mutinelli F, Dacasto M. Significance of the goby Zosterisessor ophiocephalus as a sentinel species for Venice Lagoon contamination: Combining biomarker responses and bioaccumulation. Sci Total Environ 2019; 660:959-973. [PMID: 30743980 DOI: 10.1016/j.scitotenv.2019.01.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
The Venice Lagoon is an interesting example of an ecosystem suffering for a considerable anthropogenic impact, resulting in high concentrations of persistent organic pollutants (POPs) in lagoon sediments and seafood. In this context, biomonitoring is a crucially important task. The present study aimed at evaluating the validity of a multiple biomarker approach in a benthic fish species. A total of 567 Zosterisessor ophiocephalus (Gobiidae) fish were collected in spring and autumn from three areas of Venice Lagoon (Porto Marghera, Val di Brenta, and Cà Roman) showing high, intermediate and low amounts of POPs, respectively. Aryl hydrocarbon receptor (AHR) and cytochrome P450 1A (CYP1A) mRNA levels, CYP1A protein amount and ethoxyresorufin O-deethylase activity (EROD) were measured in pooled liver and gills (mRNA levels only). Such biological data were then compared with polychlorinated biphenyls (PCBs) residues, measured in grass goby muscle by gas chromatography. Aryl hydrocarbon receptor and CYP1A mRNAs, protein and EROD were upregulated in accordance with PCB amounts measured in Z. ophiocephalus muscles. In fact, the highest AHR and CYP1A induction was observed in fish sampled in close proximity of the industrial area of Porto Marghera. Overall, the present study confirm the grass goby as a reliable sentinel species for Venice Lagoon, and AHR/CYP1A/EROD as a sensitive set of biomarkers of exposure for AHR ligands.
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Affiliation(s)
- Marianna Pauletto
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy.
| | - Rosa M Lopparelli
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy.
| | - Sara Pegolo
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy.
| | - Mariachiara Armani
- Veterinary and Public Health Institute, viale dell'Università 10, I-35020 Legnaro, Padua, Italy.
| | - Eleonora Zorzan
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy.
| | - Mery Giantin
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy.
| | - Daniela Bertotto
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy.
| | - Federica Gallocchio
- Veterinary and Public Health Institute, viale dell'Università 10, I-35020 Legnaro, Padua, Italy.
| | - Vanessa Zancanella
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy
| | - Francesca Capolongo
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy.
| | - Giovanni Binato
- Veterinary and Public Health Institute, viale dell'Università 10, I-35020 Legnaro, Padua, Italy.
| | - Franco Mutinelli
- Veterinary and Public Health Institute, viale dell'Università 10, I-35020 Legnaro, Padua, Italy.
| | - Mauro Dacasto
- Department of Comparative Biomedicine and Food Science, University of Padua, viale dell'Università 16, I-35020 Legnaro, Padua, Italy.
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18
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He TT, Zhang T, Liu SB, Shi JC, Huang YS, Zheng HP, Liu WH. Toxicological effects benzotriazole to the marine scallop Chlamys nobilis: a 2-month exposure study. Environ Sci Pollut Res Int 2019; 26:10306-10318. [PMID: 30761489 DOI: 10.1007/s11356-019-04201-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 01/08/2019] [Indexed: 05/23/2023]
Abstract
Benzotriazole and its associated derivatives (BTs) are widely used as ultraviolet stabilizers and corrosion inhibitors. They have been extensively found in marine environments and are bioaccumulative through the food chain. However, the toxicities of BTs to marine organisms are seldom identified and no assessment has been conducted for filter-feeding bivalves. In this study, a marine scallop Chlamys nobilis was exposed to 0, 0.01, 0.1, and 1.0 mg/L of BT for 60 days. Effects of BT on endocrine system, cytochrome P450 activity, antioxidant activity, and neural activity of C. nobilis were examined. The results showed that BT exerted significant estrogenic effects on both male and female scallops and inhibited EROD activities of C. nobilis even at 0.01 mg/L level. BT at ≥ 0.01 mg/L levels also caused significant oxidative stress on C. nobilis. Moreover, most of the adverse effects of BT to C. nobilis were found from day 35 and 0.01 mg/L was the lowest concentration with observed effects, showing the long-term toxic effects of BT to C. nobilis. Thus, the adverse effects of BT and its derivatives to marine benthic communities deserve more attention in future research.
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Affiliation(s)
- Tang-Tian He
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
- State Key Laboratory in Marine Pollution, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Tao Zhang
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Shi-Bo Liu
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
- Songliao River Basin Water Environment Monitoring Center, Changchun, Jilin, 130021, People's Republic of China
| | - Jing-Chun Shi
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Yi-Sheng Huang
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Huai-Ping Zheng
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Wen-Hua Liu
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China.
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19
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Pannetier P, Morin B, Clérandeau C, Lacroix C, Cabon J, Cachot J, Danion M. Comparative biomarker responses in Japanese medaka (Oryzias latipes) exposed to benzo[a]pyrene and challenged with betanodavirus at three different life stages. Sci Total Environ 2019; 652:964-976. [PMID: 30380501 DOI: 10.1016/j.scitotenv.2018.10.256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/15/2018] [Accepted: 10/19/2018] [Indexed: 06/08/2023]
Abstract
It is now well documented that several contaminants can modulate the fish immune system, leading to disrupted host resistance against pathogens and increased incidence of disease. Since fish are usually co-exposed to chemicals and pathogens in the natural environment, analysis of the immunotoxic effects of pollutants is particularly relevant. The authorities in the European Union have recommended the development of toxicity assays on cell cultures and embryos, as an alternative to testing in vertebrates. This is why in our study, a fish immune challenge assay was developed for the early life stages of Japanese medaka to evaluate and compare the relevance of new biomarkers. Fish were exposed to benzo[a]pyrene (BaP), a model pollutant, for 8days at the embryonic stage, or for 48h at the larvae and juvenile stages, and fish were infected with betanodavirus by bath-challenge of 106TCID50/mL. Biometric changes and induction of malformations were observed after embryonic exposure. DNA damage and induction of EROD activity were recorded at the end of all chemical exposures. Viral infection increased the mortality rate significantly and disturbed the behavior of fish after light stimulation. While BaP exposure increased swimming speed, betanodavirus infection slowed swimming activity. In larvae co-exposed to BaP and the virus, the viral titer in the whole body was higher than in fish infected only with the virus. This study highlighted the sensitivity and usefulness of the immune challenge assay on the early life stages of Japanese medaka to evaluate the toxic effects of pollutants.
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Affiliation(s)
- Pauline Pannetier
- Bordeaux University, EPOC Laboratory, UMR 5805, F-33400 Talence, France
| | - Bénédicte Morin
- Bordeaux University, EPOC Laboratory, UMR 5805, F-33400 Talence, France
| | | | - Camille Lacroix
- Centre of Documentation, Research and Experimentation on Accidental Water Pollution (CEDRE), 715 Rue Alain Colas, 29200 Brest, France
| | - Joëlle Cabon
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Ploufragan-Plouzané Laboratory, Fish Viral Pathology Unit, Technopôle Brest-Iroise, 29280 Plouzané, France
| | - Jérôme Cachot
- Bordeaux University, EPOC Laboratory, UMR 5805, F-33400 Talence, France
| | - Morgane Danion
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Ploufragan-Plouzané Laboratory, Fish Viral Pathology Unit, Technopôle Brest-Iroise, 29280 Plouzané, France.
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20
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Burkina V, Zamaratskaia G, Sakalli S, Giang PT, Kodes V, Grabic R, Velisek J, Turek J, Kolarova J, Zlabek V, Randak T. Complex effects of pollution on fish in major rivers in the Czech Republic. Ecotoxicol Environ Saf 2018; 164:92-99. [PMID: 30098510 DOI: 10.1016/j.ecoenv.2018.07.109] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/23/2018] [Accepted: 07/26/2018] [Indexed: 06/08/2023]
Abstract
Monitoring the contamination level in aquatic environments and assessing the impact on aquatic life occurs throughout the world. In the present study, an approach based on a combination of biomarkers and the distribution of various industrial and municipal pollutants was used to investigate the effect of aquatic environmental contamination on fish. Monitoring was performed in ten rivers in the Czech Republic (Berounka, Dyje, Elbe, Lužnice, Odra, Ohře, Otava, Sázava, Svratka, and Vltava rivers, with one or two locations in each river) at the same sites that were regularly monitored within the Czech National Monitoring Program in 2007-2011. Health status, hepatic ethoxyresorufin-O-deethylase (EROD) activity, total cytochrome P450 content, and the plasma vitellogenin concentration were assessed in wild chub (Squalius cephalus) males caught at the monitored sites. The contamination level was the highest in the Svratka River downstream of Brno. Among all measured persistent organic pollutants (POPs), polychlorinated biphenyls and dichlorodiphenyltrichloroethane and its metabolites were the major contributors of POPs in fish muscle. Elbe, Odra, and Svratka rivers were identified as the most polluted. Fish from these locations showed reduced gonad size, increased vitellogenin concentration in male plasma, EROD, and total cytochrome P450 content. These biomarkers can be used for future environmental monitoring assessments. Overall, this study improves our understanding of the relationship between human activities and pollutant loads and further contributes to the decision to support local watershed managers to protect water quality in this region.
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Affiliation(s)
- Viktoriia Burkina
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Galia Zamaratskaia
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic; Swedish University of Agricultural Sciences, Uppsala BioCenter, Department of Molecular Science, P.O. Box 7015, SE-750 07 Uppsala, Sweden.
| | - Sidika Sakalli
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Pham Thai Giang
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Vit Kodes
- Czech Hydrometeorological Institute, Section of Water Quality, Na Sabatce 17, CZ-14306 Prague 4, Czech Republic.
| | - Roman Grabic
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Josef Velisek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Jan Turek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Jitka Kolarova
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Vladimir Zlabek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Tomas Randak
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
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Bonnail E, Cunha Lima R, Bautista-Chamizo E, Salamanca MJ, Cruz-Hernández P. Biomarker responses of the freshwater clam Corbicula fluminea in acid mine drainage polluted systems. Environ Pollut 2018; 242:1659-1668. [PMID: 30064871 DOI: 10.1016/j.envpol.2018.07.111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 07/18/2018] [Accepted: 07/23/2018] [Indexed: 06/08/2023]
Abstract
The environmental quality of an acid mine drainage polluted river (Odiel River) in the Iberian Pyrite Belt (SW Spain) was assessed by combining analyses of biomarkers (DNA strand breaks, LPO, EROD, GST, GR, GPx) in freshwater clams (Corbicula fluminea) exposed during 14 days and correlated with metal(loid) environmental concentrations. Results pointed that enzymatic systems are activated to combat oxidative stress in just 24 h. Along exposure, there were homeostatic regulations with the glutathione activity that influenced in lipid peroxidation oscillations, provoking significant DNA strand damage after 14 exposure days. EROD activity showed no changes throughout the exposure period. The Asian clam displayed balance biomarkers of exposure-antioxidant activity under non-stressfully environments; meanwhile, when was introduced into acid polymetallic environments, such as the acid mine drainage, its enzymatic activity was displaced towards biomarkers of effect and the corresponding antioxidant activity.
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Affiliation(s)
- Estefanía Bonnail
- Centro de Investigaciones Costeras- Universidad de Atacama (CIC-UDA), Avenida Copayapu 485, Copiapó, Región Atacama, Chile.
| | - Ricardo Cunha Lima
- Centro de Investigaciones Costeras- Universidad de Atacama (CIC-UDA), Avenida Copayapu 485, Copiapó, Región Atacama, Chile
| | | | - María José Salamanca
- Departamento de Química-Física, Universidad de Cádiz, CP 11510, Puerto Real, Cádiz, Spain
| | - Pablo Cruz-Hernández
- Department of Earth Sciences, University of Huelva, Campus 'El Carmen', Huelva, E-21071, Spain; Department of Mining Egineering, University of Chile, FCFM, Santiago, Chile
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Santana MS, Sandrini-Neto L, Filipak Neto F, Oliveira Ribeiro CA, Di Domenico M, Prodocimo MM. Biomarker responses in fish exposed to polycyclic aromatic hydrocarbons (PAHs): Systematic review and meta-analysis. Environ Pollut 2018; 242:449-461. [PMID: 30005257 DOI: 10.1016/j.envpol.2018.07.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 06/14/2018] [Accepted: 07/02/2018] [Indexed: 06/08/2023]
Abstract
Biomarkers of antioxidant and biotransformation systems are commonly used to assess polycyclic aromatic hydrocarbons (PAHs) pollution in fish. Despite their extensive application of biomarkers, contradictory results are vastly reported in the literature, even for the same species in similar contamination scenarios. This study aims to verify response patterns of biomarkers in fish exposed to PAHs. Through systematic reviews and meta-analyses, we were able to evaluate: (i) overall magnitude of PAHs effects on biotransformation and oxidative stress biomarkers; (ii) patterns of response among experimental approaches (laboratory, field and active biomonitoring), environment (marine and freshwater) and fish habitat (pelagic, demersal, etc.); (iii) effects of exposure route, time and concentration of PAHs; and (iv) which biomarkers respond best to PAHs exposure. Overall, biomarker responses were significantly affected by PAHs exposure. The activities of ethoxyresorufin-O-deethylase (EROD), glutathione S-transferase (GST), superoxide dismutase (SOD), glutathione peroxidase (GPx) and levels of oxidized glutathione (GSSG) and lipid peroxide (LPO) significantly increased in fish exposed to PAHs, whereas catalase (CAT) and glutathione reductase (GR) activities and levels of reduced glutathione (GSH) were not affected. Amongst responsive biomarkers, EROD and GST activities significantly differed among approaches and between marine and freshwater environments, but were not affected by fish habitat. GSSG levels were higher in fish from laboratory bioassays compared to the field, but did not differ between environments nor habitats. Exposure route played a major role only for GST and GPx responses. Finally, increasing PAHs concentration and exposure time had a significant effect on all assessed biomarkers, except for CAT. We conclude that EROD and GST are robust biomarkers to assess PAHs effects in fish. Contrarily, CAT is an inadequate biomarker of PAHs exposure since no significant response was observed. Our study also highlighted some research gaps in PAHs contamination studies, such as a clear lack of active biomonitoring experiments.
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Affiliation(s)
- Manuela S Santana
- Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, CEP 81.531-980, Curitiba, Paraná, Brazil.
| | - Leonardo Sandrini-Neto
- Centro de Estudos do Mar, Universidade Federal do Paraná, CEP 83255-976, Pontal do Paraná, Paraná, Brazil
| | - Francisco Filipak Neto
- Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, CEP 81.531-980, Curitiba, Paraná, Brazil
| | - Ciro A Oliveira Ribeiro
- Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, CEP 81.531-980, Curitiba, Paraná, Brazil
| | - Maikon Di Domenico
- Centro de Estudos do Mar, Universidade Federal do Paraná, CEP 83255-976, Pontal do Paraná, Paraná, Brazil
| | - Maritana M Prodocimo
- Departamento de Biologia Celular, Setor de Ciências Biológicas, Universidade Federal do Paraná, CEP 81.531-980, Curitiba, Paraná, Brazil
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Bianchini K, Morrissey CA. Polycyclic aromatic hydrocarbon exposure impairs pre-migratory fuelling in captively-dosed Sanderling (Calidris alba). Ecotoxicol Environ Saf 2018; 161:383-391. [PMID: 29902618 DOI: 10.1016/j.ecoenv.2018.05.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 06/08/2023]
Abstract
Efficient fuelling is essential for migratory birds because fuel loads and fuelling rates affect individual fitness and survival during migration. Many migrant shorebirds are exposed to oil pollution and its toxic constituents, polycyclic aromatic hydrocarbons (PAHs), at migratory staging sites, which has the potential to interfere with avian refuelling physiology. In this study, we orally dosed shorebirds with environmentally-relevant PAH mixtures to simulate dietary exposure during staging. Forty-nine wild-caught Sanderling (Calidris alba) were exposed to 0 (control), 12.6 (low), 126 (medium), or 1260 (high) μg total PAH/kg body weight/day. Birds were dosed during a 21-day period of autumn pre-migratory fuelling to mimic the typical staging duration of Sanderling. We measured daily changes in mass and fat loads, as well as ethoxyresorufin-O-deethylase (EROD) activity, serum biochemical profiles, and liver mass and lipid content following dosing. All dose groups gained fat and increased in mass (size-corrected) during the study period, with females having a higher average body mass than males. However, mass gain was 3.9, 5.4, and 3.8 times lower in the low, medium, and high dose groups, respectively, relative to controls, and body mass in the medium and high dose groups significantly declined near the end of the experiment. EROD activity showed a dose-dependent increase and was significantly elevated in the high dose group relative to controls. Higher individual EROD activity was associated with reduced serum bile acid and elevated serum creatine kinase concentrations in both sexes, and with elevated serum lipase concentrations in females. These results suggest that PAH exposure in Sanderling can interfere with mechanisms of lipid transport and metabolism, can cause muscle damage, and can lead to reduced overall fat loads that are critical to staging duration, departure decisions, migratory speed, and flight range. Given that many shorebirds migrate thousands of kilometers between the breeding and wintering grounds and frequently aggregate at key staging sites that are subject to contamination, PAH exposure likely represents a significant threat to shorebird migratory success.
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Affiliation(s)
- Kristin Bianchini
- Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, Canada S7N 5B3.
| | - Christy A Morrissey
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK, Canada S7N 5E2; School of Environment and Sustainability, University of Saskatchewan, 117 Science Place, Saskatoon, SK, Canada S7N 5C8.
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Chen H, Zeng X, Mu L, Hou L, Yang B, Zhao J, Schlenk D, Dong W, Xie L, Zhang Q. Effects of acute and chronic exposures of fluoxetine on the Chinese fish, topmouth gudgeon Pseudorasbora parva. Ecotoxicol Environ Saf 2018; 160:104-113. [PMID: 29793199 DOI: 10.1016/j.ecoenv.2018.04.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 04/22/2018] [Accepted: 04/26/2018] [Indexed: 06/08/2023]
Abstract
Fluoxetine is a selective serotonin reuptake inhibitor used as an antidepressant and has been frequently detected in aquatic environments. However, its effects in fish from Asia remain relatively less studied. In this study, the topmouth gudgeon Pseudorasbora parva was exposed to 0, 50, and 200 µg/L of fluoxetine for 4 h and 42 d. The effects of fluoxetine on biometrics were compared to biochemical endpoints indicative of stress in different fish tissues (brain, liver, gills and intestine) following exposures. In fish exposed for 42 d, lipid peroxidation endpoints were enhanced 80% in the liver and gills. Acetylcholinesterase (AChE) activity was increased 40% after exposure to 50 µg/L and 55% at 200 µg/L following 4 h exposure. In contrast AChE was increased 26% (at 50 µg/L) after 42 d of exposures. Enhanced ethoxyresorufin-O-deethylase activity (EROD) was detected only in fish exposed to 50 µg/L of fluoxetine for 4 h. The activity of α-glucosidase (α-Glu) was also induced (at 200 µg/L) after 4 h of exposure. After 4 h of exposure, the activities of proteases in the intestine were generally inhibited at 200 µg/L. Both 4 h and 42 d exposures resulted in an increased hepatosomatic index (HSI) but did not affect the condition factor (CF). Our results demonstrate that fluoxetine significantly altered biochemical endpoints in P. parva after acute exposure and the morphological changes in liver size were not observed until 42 d of exposure.
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Affiliation(s)
- Hongxing Chen
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, 110016, China; The Environmental Research Institute, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Xiangfeng Zeng
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, 110016, China; Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Lei Mu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, 110016, China
| | - Liping Hou
- School of Life Sciences, Guangzhou University, Guangzhou 510655, China
| | - Bin Yang
- The Environmental Research Institute, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Jianliang Zhao
- The Environmental Research Institute, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California Riverside, Riverside, CA 92521, USA
| | - Wu Dong
- Inner Mongolia University for the Nationalities, Tongliao 028000, China
| | - Lingtian Xie
- The Environmental Research Institute, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Qianru Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, 110016, China.
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Fabrin TMC, Diamante NA, Mota TFM, Ghisi NDC, Prioli SMAP, Prioli AJ. Performance of biomarkers metallothionein and ethoxyresorufin O-deethylase in aquatic environments: A meta-analytic approach. Chemosphere 2018; 205:339-349. [PMID: 29704841 DOI: 10.1016/j.chemosphere.2018.04.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 03/15/2018] [Accepted: 04/13/2018] [Indexed: 06/08/2023]
Abstract
The preservation of natural environments guarantees the conservation of biodiversity and ecosystem processes. Biomonitoring programs in preserved sites can be carried out using molecular biomarkers, which reflect possible stresses that exist in the monitored location. The metallothionein (MT) proteins and isoenzyme Cytochrome P4501A (CYP4501A) are among the most used biomarkers and reflect the detoxification of metal and organic xenobiotics, respectively. This study aimed to assess the performance of these biomarkers in natural aquatic environments using a meta-analytic approach. The data search was conducted in ISI Web of Science™, considering papers published until August 2016. Studies included in this research needed to compare reference or control sites and sites under stress and be conducted in situ. In general, both biomarkers were useful when comparing control sites with sites under stress. Moreover, when the data were categorized into groups of organisms, mainly bivalves and fishes, there were differences between the groups and between the monitored environments, marine or freshwater. The use of these biomarkers in fish is suitable for freshwater environments, and bivalves are suitable for marine environments. We concluded that the concomitant use of vertebrate and invertebrate bioindicators is useful to develop an effective biomonitoring program and to avoid biases due the physiology of the selected bioindicator.
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Affiliation(s)
- Thomaz Mansini Carrenho Fabrin
- Research Nucleus in Limnology, Ichthyology and Aquiculture (NUPELIA) and Postgraduate Program in Ecology of Inland Water Ecosystems, State University of Maringá. Avenida Colombo, 5790, Bloco G90, sala 16, Laboratório de Genética, 87020-900 Maringá, PR, Brazil.
| | - Nathália Alves Diamante
- Postgraduate Program in Comparative Biology, State University of Maringá. Avenida Colombo, 5790, Bloco G90, sala 16, Laboratório de Genética, 87020-900 Maringá, PR, Brazil.
| | - Thaís Fernandes Mendonça Mota
- Postgraduate Program in Comparative Biology, State University of Maringá. Avenida Colombo, 5790, Bloco G90, sala 16, Laboratório de Genética, 87020-900 Maringá, PR, Brazil.
| | - Nédia de Castilhos Ghisi
- Postgraduate Program in Biotechnology, Federal University of Technology (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade São Cristóvão, P.O. Box 157, 85660-000 Dois Vizinhos, Paraná, Brazil.
| | - Sônia Maria Alves Pinto Prioli
- Research Nucleus in Limnology, Ichthyology and Aquiculture (NUPELIA) e Department of Biotechnology, Genetic and Cellular Biology, State University of Maringá, Avenida Colombo, 5790, Bloco G90, sala 16, Laboratório de Genética, 87020-900 Maringá, PR, Brazil.
| | - Alberto José Prioli
- Research Nucleus in Limnology, Ichthyology and Aquiculture (NUPELIA) and Postgraduate Program in Ecology of Inland Water Ecosystems, State University of Maringá, Avenida Colombo, 5790, Bloco G90, sala 16, Laboratório de Genética, 87020-900 Maringá, PR, Brazil.
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Santos C, de Oliveira MT, Cólus IMDS, Sofia SH, Martinez CBDR. Expression of cyp1a induced by benzo(A)pyrene and related biochemical and genotoxic biomarkers in the neotropical freshwater fish Prochilodus lineatus. Environ Toxicol Pharmacol 2018; 61:30-37. [PMID: 29843052 DOI: 10.1016/j.etap.2018.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/17/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
The goal of this work was to design specific cyp1a primers for the fish Prochilodus lineatus to study the expression of this gene and its relation to the activity of biotransformation phase I enzyme (ethoxyresorufin O-deethylase - EROD) and genotoxic damage after 6 and 24 h of benzo(a)pyrene (B(a)P) intraperitoneal injection. In comparison to fish injected only with canola oil (vehicle), the expression of cyp1a and EROD activity both in the liver and gills were significantly higher after 6 and 24 h of B(a)P injection. A significant increase in DNA damage was detected in liver and blood cells after 6 h of B(a)P injection and in the gill cells after both times, probably caused by intermediate metabolites of B(a)P. Thus, the expression of cyp1a and its relationship with the corresponding enzyme activity is a potential biomarker for evaluation P. lineatus exposure to organic compounds.
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Affiliation(s)
- Caroline Santos
- Department of Physiological Sciences, State University of Londrina, Rod. Celso Garcia Cid, km 380, Londrina, Parana, 86057-970, Brazil; Department of General Biology, State University of Londrina, Rod. Celso Garcia Cid, km 380, Londrina, Parana, 86057-970, Brazil
| | - Marcelo Tempesta de Oliveira
- Department of General Biology, State University of Londrina, Rod. Celso Garcia Cid, km 380, Londrina, Parana, 86057-970, Brazil
| | - Ilce Mara de Syllos Cólus
- Department of General Biology, State University of Londrina, Rod. Celso Garcia Cid, km 380, Londrina, Parana, 86057-970, Brazil
| | - Silvia Helena Sofia
- Department of General Biology, State University of Londrina, Rod. Celso Garcia Cid, km 380, Londrina, Parana, 86057-970, Brazil
| | - Claudia Bueno Dos Reis Martinez
- Department of Physiological Sciences, State University of Londrina, Rod. Celso Garcia Cid, km 380, Londrina, Parana, 86057-970, Brazil.
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Blanco M, Pérez-Albaladejo E, Piña B, Kušpilić G, Milun V, Lille-Langøy R, Karlsen OA, Goksøyr A, Porte C. Assessing the environmental quality of sediments from Split coastal area (Croatia) with a battery of cell-based bioassays. Sci Total Environ 2018; 624:1640-1648. [PMID: 29074243 DOI: 10.1016/j.scitotenv.2017.10.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 09/29/2017] [Accepted: 10/07/2017] [Indexed: 06/07/2023]
Abstract
A battery of cell-based bioassays, including PLHC-1 cells, zebrafish-Pxr-transfected COS-7 cells and estrogen receptor-recombinant yeast assay (ER-RYA), were applied to detect the presence of bioactive pollutants in sediments collected from Kaštela Bay and Brač Channel (Croatia). Exposure of PLHC-1 cells to the sediment extracts evidenced significant cytotoxicity and presence of CYP1A inducers in sediments collected in Kaštela Bay, near the industrial zone and cargo port of Split. Sediments from this area, which is highly contaminated with PCBs, HCB, DDTs and γ-HCH, also activated the zebrafish Pxr (zfPxr) reporter system. No evidence of estrogenicity was detected for any of the sediments extracts in the ER-RYA assay. Importantly, the battery of in vitro assays identified Kaštela Bay as the area with the higher anthropogenic impact, where sediment-bound pollutants could pose a risk to aquatic organisms. In contrast, sediments from the Brač Channel showed rather low response in the different bioassays.
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Affiliation(s)
- Maria Blanco
- Department of Environmental Chemistry, IDAEA-CSIC, Barcelona, Spain
| | | | - Benjamí Piña
- Department of Environmental Chemistry, IDAEA-CSIC, Barcelona, Spain
| | | | - Vesna Milun
- Institute of Oceanography and Fisheries, Split, Croatia
| | | | | | | | - Cinta Porte
- Department of Environmental Chemistry, IDAEA-CSIC, Barcelona, Spain.
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Beg MU, Butt SA, Al-Dufaileej S, Karam Q, Al-Sharrah TK, Saeed T. Biomarkers in fish as a measure of the state of marine environment of Kuwait. Environ Monit Assess 2018; 190:325. [PMID: 29728864 DOI: 10.1007/s10661-018-6704-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 04/24/2018] [Indexed: 06/08/2023]
Abstract
The health of a marine ecosystem can effectively be monitored by studying the levels of biomarkers in a representative species. A change in background level of a biomarker indicates exposure to a specific type of pollutants. It also identifies bioavailability and the organism response to the causative agent among the compounds present in the surrounding water body. Yellowfin seabream (Acanthopagrus latus), a local variety of fish, was examined for parent PAHs in the liver, its metabolites in bile by the GC-MS method as exposure biomarkers and cytochrome P4501A1 by assay of ethoxyresorufin-o-deethylase (EROD) in the liver as an effect biomarker. A comparison was made between fish collected in 2015 with the fish collected in 2005-2006 and stored at - 80 °C in the fish bank. The objective was to examine the extent of changes in the environmental quality of the Kuwait marine area and the status of fish health concerning oil-related pollutants since Arabian Gulf is surrounded by oil-producing countries. Interestingly, insignificant differences between the liver PAH content and EROD activity were observed in fish over the sampling periods. The fish efficiently metabolized PAHs and excreted hydroxy-metabolites in bile. The study suggested that environmental quality of the Kuwait marine area was not deteriorated to any serious extent in the last decade and biomarkers can be used effectively in assessing the thrust of sub-optimal levels of various contaminants present in the marine area on the resident biota.
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Affiliation(s)
- M U Beg
- Environmental Pollution & Climate Program, Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, P.O. Box 24885, 13109, Kuwait, Kuwait.
| | - S A Butt
- Environmental Pollution & Climate Program, Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, P.O. Box 24885, 13109, Kuwait, Kuwait
| | - S Al-Dufaileej
- Environmental Pollution & Climate Program, Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, P.O. Box 24885, 13109, Kuwait, Kuwait
| | - Q Karam
- Environmental Pollution & Climate Program, Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, P.O. Box 24885, 13109, Kuwait, Kuwait
| | - T K Al-Sharrah
- Environmental Pollution & Climate Program, Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, P.O. Box 24885, 13109, Kuwait, Kuwait
| | - T Saeed
- Environmental Pollution & Climate Program, Environment and Life Sciences Research Centre, Kuwait Institute for Scientific Research, Safat, P.O. Box 24885, 13109, Kuwait, Kuwait
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Rahman MS, Thomas P. Interactive effects of hypoxia and PCB co-exposure on expression of CYP1A and its potential regulators in Atlantic croaker liver. Environ Toxicol 2018; 33:411-421. [PMID: 29316220 DOI: 10.1002/tox.22527] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/12/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
Although marine and coastal environments which are contaminated with xenobiotic organic compounds often become hypoxic during the summer, the interactive effects of hypoxia and xenobiotic exposure on marine species such as teleost fishes remain poorly understood. The expression and activity of monooxygenase enzyme cytochrome P450-1A (CYP1A) in fishes are upregulated by exposure to polychlorinated biphenyls (PCBs), whereas they are down-regulated during hypoxia exposure. We investigated the interactive effects of hypoxia and PCB co-exposure on hepatic CYP1A expression in Atlantic croaker and on potential regulators of CYP1A. Croaker were exposed to hypoxia (1.7 mg/L dissolved oxygen), 3,3',4,4'-tetrachlorobiphenyl (PCB 77, dose: 2 and 8 µg/g body weight), and Aroclor 1254 (a common PCB mixture, dose: 0.5 and 1 µg/g body weight), alone and in combination for 4 weeks. PCB 77 exposure markedly increased hepatic CYP1A mRNA and protein expression, and ethoxyresorufin-O-deethylase (EROD, an indicator of CYP1A enzyme) activity and increased endothelial nitric oxide synthase (eNOS) protein expression. PCB 77 treatment also increased interleukin-1β (IL-1β, a cytokine) mRNA levels and protein carbonyl (PC, an indicator of reactive oxygen species, ROS) contents. These marked PCB 77- and Aroclor 1254-induced increases in CYP1A mRNA levels and EROD activity were significantly attenuated by co-exposure to hypoxia, whereas the increases in hepatic eNOS protein and IL-1β mRNA expression, and PC contents were augmented by hypoxia co-exposure. The results suggest that biotransformation of organic xenobiotics by CYP1A is reduced in fish during co-exposure to hypoxia and is accompanied by alterations in eNOS, ROS, and IL-1β levels.
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Affiliation(s)
- Md Saydur Rahman
- School of Earth, Environmental, and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, 78520
- Marine Science Institute, University of Texas at Austin, Port Aransas, Texas, 78373
| | - Peter Thomas
- Marine Science Institute, University of Texas at Austin, Port Aransas, Texas, 78373
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Kopko O, Dabrowska H. Variability of biological indices, biomarkers, and organochlorine contaminants in flounder (Platichthys flesus) in the Gulf of Gdańsk, southern Baltic Sea. Chemosphere 2018; 194:701-713. [PMID: 29247930 DOI: 10.1016/j.chemosphere.2017.12.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 12/06/2017] [Accepted: 12/07/2017] [Indexed: 06/07/2023]
Abstract
Biological indices, biomarkers (EROD activity, DNA SB, 1-OH pyrene), and organochlorine contaminants were investigated in flounder collected in the Gulf of Gdańsk during March-December 2011 to describe their seasonal variability and interrelations. Univariate and multivariate statistics were used to evaluate the relations. The EROD activity positively correlated with DNA SB, both negatively correlated with CF, GSI, and HSI, and there was a moderate positive correlation for EROD and DNA SB with 1-OH pyrene. EROD highest activity corresponded to a resting stage of gonad development. DNA SB, highest during spawning, gradually decreased until late autumn. The PCBs, DDTs, HCB, HCHs, dieldrin, and heptachlor levels in muscle tissue were quantified on a wet and lipid basis. In each case, their levels decreased after spawning, fluctuated over the study period indicating that their accumulation was pronouncedly controlled by chemical-specific properties, their levels in prey, and lipid dynamics.
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Affiliation(s)
- Orest Kopko
- National Marine Fisheries Research Institute (NMFRI), Gdynia, Poland
| | - Henryka Dabrowska
- National Marine Fisheries Research Institute (NMFRI), Gdynia, Poland.
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Santos-Silva TG, Montagner CC, Martinez CBR. Evaluation of caffeine effects on biochemical and genotoxic biomarkers in the neotropical freshwater teleost Prochilodus lineatus. Environ Toxicol Pharmacol 2018; 58:237-242. [PMID: 29438913 DOI: 10.1016/j.etap.2018.02.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 02/04/2018] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
Caffeine is often found in aquatic environments, leading to concerns regarding its adverse consequences for aquatic biota. Biochemical and genotoxic biomarkers were analysed in juveniles of Prochilodus lineatus to evaluate the effects of caffeine. Fish were exposed to caffeine (0.3, 3 and 30 μg L-1) for either 24 h or 168 h. Longer exposure to caffeine resulted in a significant reduction in the activity of the phase I biotransformation enzyme ethoxyresorufin-O-deethylase (EROD) in the brain but a significant increase in the liver. Changes in glutathione content (GSH), glutathione S-transferase (GST) activity, and lipid peroxidation were not found in the liver and brain of fish exposed to caffeine. DNA damage in erythrocytes were also not found. These results show that caffeine may interfere with the biotransformation mechanism of P. lineatus after 168 h exposure, but it does not generate sufficient changes to trigger a state of oxidative stress.
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Affiliation(s)
- Thais G Santos-Silva
- Laboratório de Ecofisiologia Animal, Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina, 86051-990, Londrina, Paraná, Brazil
| | - Cassiana C Montagner
- Laboratório de Química Ambiental, Instituto de Química, Universidade Estadual de Campinas, 13083-970, Campinas, São Paulo, Brazil
| | - Claudia B R Martinez
- Laboratório de Ecofisiologia Animal, Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina, 86051-990, Londrina, Paraná, Brazil.
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Xu H, Li C, Suklai P, Zeng Q, Chong R, Gong Z. Differential sensitivities to dioxin-like compounds PCB 126 and PeCDF between Tg(cyp1a:gfp) transgenic medaka and zebrafish larvae. Chemosphere 2018; 192:24-30. [PMID: 29091793 DOI: 10.1016/j.chemosphere.2017.10.130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/24/2017] [Accepted: 10/24/2017] [Indexed: 06/07/2023]
Abstract
It has been intensively documented that there are species-differences in the sensitivity to dioxin-like compounds (DLCs) in mammalian and avian. However, this issue is still unclear in fish. This study aimed at evaluating the differential sensitivities to DLCs in fish larvae. Here, larvae of Tg(cyp1a:gfp) medaka and Tg(cyp1a:gfp) zebrafish were tested with 2,3,7,8-Tetrachlorodibenzodioxin (TCDD), polychlorinated biphenyl 126 (PCB 126) and 2,3,4,7,8,-Pentachlorodibenzofuran (PeCDF). Comparative analyses were performed on induction of GFP fluorescence, expression of endogenous cyp1a mRNAs and EROD activity between the two species after exposure to these chemicals. We found that PCB 126 and PeCDF exposure at high concentrations induced strong GFP expression in multiple organs (liver, head kidney and gut) in both medaka and zebrafish larvae. Moreover, the expression of endogenous cyp1a mRNA was significantly elevated in the zebrafish larvae exposed to TCDD, PCB 126 and PeCDF at different concentrations. Likewise, almost all the exposure conditions could cause prominent elevation of EROD activity in the zebrafish larvae, while the EROD activities were just slightly elevated in the medaka larvae exposed to 1 nM and 0.5 nM of TCDD as well as to 1.5 nM and 15 nM of PeCDF, but not in the medaka larvae exposed to PCB 126. Taken together, zebrafish was proved to be more sensitive than medaka to PCB 126 and to PeCDF in this study. The findings suggested species-specific sensitivity to DLCs in fish and will facilitate choosing a sensitive and reliable fish model or tool to evaluate the risk of dioxins and DLCs exposure.
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Affiliation(s)
- Hongyan Xu
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 1 Xingyu Road, Liwan District, Guangzhou, 510380, China; Department of Biological Sciences, National University of Singapore, Singapore.
| | - Caixia Li
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Pacharaporn Suklai
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Qinghua Zeng
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Raymond Chong
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, Singapore.
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Sakalli S, Burkina V, Pilipenko N, Zlabek V, Zamaratskaia G. In vitro effects of diosmin, naringenin, quercetin and indole-3-carbinol on fish hepatic CYP1A1 in the presence of clotrimazole and dexamethasone. Chemosphere 2018; 192:105-112. [PMID: 29100118 DOI: 10.1016/j.chemosphere.2017.10.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 10/13/2017] [Accepted: 10/18/2017] [Indexed: 06/07/2023]
Abstract
Phytochemicals are widely present in fruits, vegetables and other plants and have great health benefits owing to their antioxidant properties. They are naturally found in the aquatic environment as well as discharged from sewage treatment plants after their large consumption. Little is known about their impact on fish; particularly in light of their interactions with pharmaceuticals. Therefore, this study was designed to determine the effects of diosmin, naringenin, quercetin and idole-3-carbinol on CYP1A-dependent 7-ethoxyresorufin-O-deethylase (EROD) activity on rainbow trout hepatic microsomes in the presence of two pharmaceuticals: clotrimazole and dexamethasone. The interactions between the phytochemicals and pharmaceuticals used in this study were determined using a combination index. Hepatic microsomes were exposed to two concentrations (1-or 50 μM) of phytochemicals and pharmaceuticals separately and in combinations. Singly, clotrimazole inhibited EROD activity 40% and 90% of control, while dexamethasone did not. Naringenin and diosmin inhibited EROD activity alone up to 90% and 55% respectively, but activities were further inhibited in the presence of either pharmaceutical. The preliminary study of combinations of clotrimazole with phytochemicals primarily showed synergistic effects. While EROD activity was not inhibited in the presence of quercetin or indole-3-carbinol, significant and synergistic inhibition was detected when either of these was combined with clotrimazole or dexamethasone.
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Affiliation(s)
- Sidika Sakalli
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Viktoriia Burkina
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25 Vodnany, Czech Republic
| | - Nadezhda Pilipenko
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden
| | - Vladimir Zlabek
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25 Vodnany, Czech Republic
| | - Galia Zamaratskaia
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25 Vodnany, Czech Republic; Department of Molecular Sciences, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden
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Shi P, Zhou S, Xiao H, Qiu J, Li A, Zhou Q, Pan Y, Hollert H. Toxicological and chemical insights into representative source and drinking water in eastern China. Environ Pollut 2018; 233:35-44. [PMID: 29053996 DOI: 10.1016/j.envpol.2017.10.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 10/08/2017] [Accepted: 10/08/2017] [Indexed: 05/07/2023]
Abstract
Drinking water safety is continuously threatened by the emergence of numerous toxic organic pollutants (TOPs) in environmental waters. In this study, an approach integrating in vitro bioassays and chemical analyses was performed to explore toxicological profiles of representative source and drinking water from waterworks of the Yangtze River (Yz), Taihu Lake (Th), and the Huaihe River (Hh) basins in eastern China. Overall, 34 of 96 TOPs were detected in all water samples, with higher concentrations in both source and drinking water samples of Hh, and pollutant profiles also differed across different river basins. Non-specific bioassays indicated that source water samples of Hh waterworks showed higher genotoxicity and mutagenicity than samples of Yz and Th. An EROD assay demonstrated dioxin-like toxicity which was detected in 5 of 7 source water samples, with toxin concentration levels ranging from 62.40 to 115.51 picograms TCDD equivalents per liter of water (eq./L). PAHs and PCBs were not the main contributors to observed dioxin-like toxicity in detected samples. All source water samples induced estrogenic activities of 8.00-129.00 nanograms 17β-estradiol eq./L, and estrogens, including 17α-ethinylestradiol and estriol, contributed 40.38-84.15% of the observed activities in examined samples. While drinking water treatments efficiently removed TOPs and their toxic effects, and estrogenic activity was still observed in drinking water samples of Hh. Altogether, this study indicated that the representative source water in eastern China, especially that found in Hh, may negatively affect human health, a finding that demonstrates an urgent requirement for advanced drinking water treatments.
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Affiliation(s)
- Peng Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
| | - Sicong Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Hongxia Xiao
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, Aachen 52074, Germany
| | - Jingfan Qiu
- Department of Pathogen Biology, Key Laboratory of Pathogen Biology of Jiangsu Province, Nanjing Medical University, Nanjing 210029, PR China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Yang Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Henner Hollert
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; Department of Ecosystem Analysis, Institute for Environmental Research, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, Aachen 52074, Germany; College of Resources and Environmental Science, Chongqing University, Chongqing 400030, PR China; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China
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35
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Mertes F, Mumbo J, Pandelova M, Bernhöft S, Corsten C, Henkelmann B, Bussian BM, Schramm KW. Comparative study of dioxin contamination from forest soil samples (BZE II) by mass spectrometry and EROD bioassay. Environ Sci Pollut Res Int 2018; 25:3977-3984. [PMID: 27613629 DOI: 10.1007/s11356-016-7558-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 08/29/2016] [Indexed: 06/06/2023]
Abstract
Dioxins and dioxin-like compounds can be analyzed by bioanalytical screening methods to evaluate their biotoxicity. In vitro bioassays, based on 7-ethoxyresorufin-O-deethylase (EROD) and the activity of cytochrome P450 1A1 and the aryl hydrogen receptor (AhR) pathway, are employed for the evaluation of bioanalytical equivalents (BEQ) of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs) from a wide variety of sample matrices. Here, we present the evaluation of 11 humic soil samples derived from forest stands across Germany and a comparison of the BEQ values against toxic equivalents (TEQ, PCDD/Fs+PCBs) derived by chemical analysis. BEQ values ranged from 8.8 to 34.1 while TEQ values from 13.9 to 60.5 pg/g dry weight. Additional two subsequent mineral layers were analyzed to identify the BEQ/TEQ gradient vertically, showing a TEQ decrease of 85.1 and 93.8 % from the humic to the first and second mineral layers, respectively. For BEQ values, a decrease as well as an increase was detected. BEQ measurements were performed with and without sample clean-up. Omitting clean-up revealed about 20 times increased BEQ values presumably due to non-persistent bioactive compounds not detected by chemical analysis. The results we present suggest that the EROD assay can be used for the screening of large sample quantities for the identification of samples showing dioxin and dioxin-like contaminations even at low levels, which can then be further analyzed by chemical analysis to identify the congener composition. The study also shows that EROD results give a qualitative image of the contamination. EROD seems to be interfered with cross-contaminants specifically for soils with high biological activity as forest layers.
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Affiliation(s)
- Florian Mertes
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Molecular EXposomics, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany.
| | - John Mumbo
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Molecular EXposomics, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
| | - Marchela Pandelova
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Molecular EXposomics, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
| | - Silke Bernhöft
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Molecular EXposomics, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
| | - Claudia Corsten
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Molecular EXposomics, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
| | - Bernhard Henkelmann
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Molecular EXposomics, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
| | - Bernd M Bussian
- Department of Waters and Soil, Umweltbundesamt, Wörlitzer Platz 1, 06844, Dessau, Germany
| | - Karl-Werner Schramm
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Molecular EXposomics, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
- Department für Biowissenschaftliche Grundlagen, TUM, Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt, Weihenstephaner Steig 23, 85350, Freising, Germany
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36
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McCallum ES, Krutzelmann E, Brodin T, Fick J, Sundelin A, Balshine S. Exposure to wastewater effluent affects fish behaviour and tissue-specific uptake of pharmaceuticals. Sci Total Environ 2017; 605-606:578-588. [PMID: 28672246 DOI: 10.1016/j.scitotenv.2017.06.073] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/09/2017] [Accepted: 06/09/2017] [Indexed: 06/07/2023]
Abstract
Pharmaceutical active compounds (PhACs) are increasingly being reported in wastewater effluents and surface waters around the world. The presence of these products, designed to modulate human physiology and behaviour, has created concern over whether PhACs similarly affect aquatic organisms. Though laboratory studies are beginning to address the effects of individual PhACs on fish behaviour, few studies have assessed the effects of exposure to complex, realistic wastewater effluents on fish behaviour. In this study, we exposed a wild, invasive fish species-the round goby (Neogobius melanostomus)-to treated wastewater effluent (0%, 50% or 100% effluent dilutions) for 28days. We then determined the impact of exposure on fish aggression, an important behaviour for territory acquisition and defense. We found that exposure to 100% wastewater effluent reduced the number of aggressive acts that round goby performed. We complimented our behavioural assay with measures of pharmaceutical uptake in fish tissues. We detected 11 of 93 pharmaceutical compounds that we tested for in round goby tissues, and we found that concentration was greatest in the brain followed by plasma, then gonads, then liver, and muscle. Fish exposed to 50% and 100% effluent had higher tissue concentrations of pharmaceuticals and concentrated a greater number of pharmaceutical compounds compare to control fish exposed to no (0%) effluent. Exposed fish also showed increased ethoxyresorufin-O-deethylase (EROD) activity in liver tissue, suggesting that fish were exposed to planar halogenated/polycyclic aromatic hydrocarbons (PHHs/PAHs) in the wastewater effluent. Our findings suggest that fish in effluent-dominated systems may have altered behaviours and greater tissue concentration of PhACs. Moreover, our results underscore the importance of characterizing exposure to multiple pollutants, and support using behaviour as a sensitive tool for assessing animal responses to complex contaminant mixtures, like wastewater effluent.
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Affiliation(s)
- Erin S McCallum
- Department of Psychology Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada.
| | - Emily Krutzelmann
- Department of Psychology Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada
| | - Tomas Brodin
- Department of Ecology and Environmental Science, Umeå University, SE-901 87 Umeå, Sweden
| | - Jerker Fick
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Anna Sundelin
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Sigal Balshine
- Department of Psychology Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada
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Li L, Yang D, Song Y, Shi Y, Huang B, Bitsch A, Yan J. The potential acute and chronic toxicity of cyfluthrin on the soil model organism, Eisenia fetida. Ecotoxicol Environ Saf 2017; 144:456-463. [PMID: 28667857 DOI: 10.1016/j.ecoenv.2017.06.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 06/22/2017] [Accepted: 06/25/2017] [Indexed: 06/07/2023]
Abstract
In this study, the acute (72h and 14 d) and chronic (28 d and 8 weeks) effects of cyfluthrin on earthworms were evaluated across different endpoints, which are mortality, growth, reproduction and enzyme activities. Cyfluthrin was rated as moderately toxic in 72-h filter paper test and low toxic in 14-day soil test. The exposure of earthworms to cyfluthrin-polluted soil for 8 weeks showed that growth of earthworms was inhibited by cyfluthrin, cocoon production and hatching were inhibited by 20-60mg/kg cyfluthrin. Moreover, 28-day soil test on the responses of enzymes associated with antioxidation and detoxification showed that the activities of catalase (CAT) and glutathione S- transferase (GST) were initially increased by cyfluthrin at 5-20mg/kg, but reduced at 30-60mg/kg, peroxidase (POD) was increased by 26-102% by cyfluthrin in the early period, except 5mg/kg on day 7, and ethoxyresorufin-O-deethylase (EROD) was increased by 29-335% by cyfluthrin after 3 days. Cyfluthrin degraded with a half-life of 24.8-34.8 d, showing the inconsistency between the continuous toxic responses of earthworms and degradation of cyfluthrin in soil. The variable responses of these indexes indicated that different level endpoints should be jointly considered for better evaluation of the environmental risk of contaminants in soil.
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Affiliation(s)
- Lingling Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Da Yang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yufang Song
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
| | - Yi Shi
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Bin Huang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Annette Bitsch
- Regulatory research and risk assessment of chemical substances, Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover 30625, Germany
| | - Jun Yan
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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38
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Boehler S, Strecker R, Heinrich P, Prochazka E, Northcott GL, Ataria JM, Leusch FDL, Braunbeck T, Tremblay LA. Assessment of urban stream sediment pollutants entering estuaries using chemical analysis and multiple bioassays to characterise biological activities. Sci Total Environ 2017; 593-594:498-507. [PMID: 28360001 DOI: 10.1016/j.scitotenv.2017.03.209] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 06/07/2023]
Abstract
Stormwater contaminants are a major source of often neglected environmental stressors because of the emphasis placed on the management of municipal and industrial wastewaters. Stormwater-derived pollutants in sediments from two New Zealand estuaries was characterised by analytical chemistry and bioassays. Contaminants were extracted from sediment using accelerated solvent extraction (ASE), recovered and concentrated by solid phase extraction (SPE), and analysed for polycyclic aromatic hydrocarbons (PAHs), selected metals, and musk fragrances. The concentrations of PAHs were below the ANZECC Interim Sediment Quality Guideline values while those of lead and zinc exceeded them in some samples. The sediment extracts containing organic contaminants exhibited acute toxicity in the zebrafish fish embryo toxicity (FET) and teratogenicity, induction of biotransformation (EROD activity), and genotoxicity (comet assay) in zebrafish. The potential of the extracts to interact with endocrine signalling processes was assessed by GeneBLAzer reporter gene bioassays and they exhibited estrogenic, androgenic, and anti-progestagenic activities.
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Affiliation(s)
- Svenja Boehler
- Aquatic Ecology and Toxicology Section, Centre for Organismal Studies, University of Heidelberg, Im Neuenheimer Feld 504, D-69120 Heidelberg, Germany
| | - Ruben Strecker
- Aquatic Ecology and Toxicology Section, Centre for Organismal Studies, University of Heidelberg, Im Neuenheimer Feld 504, D-69120 Heidelberg, Germany
| | - Patrick Heinrich
- Aquatic Ecology and Toxicology Section, Centre for Organismal Studies, University of Heidelberg, Im Neuenheimer Feld 504, D-69120 Heidelberg, Germany
| | - Erik Prochazka
- Australian Rivers Institute, Griffith School of Environment, Griffith University, Southport, QLD 4222, Australia
| | | | | | - Frederic D L Leusch
- Australian Rivers Institute, Griffith School of Environment, Griffith University, Southport, QLD 4222, Australia
| | - Thomas Braunbeck
- Aquatic Ecology and Toxicology Section, Centre for Organismal Studies, University of Heidelberg, Im Neuenheimer Feld 504, D-69120 Heidelberg, Germany
| | - Louis A Tremblay
- Cawthron Institute, Nelson 7010, New Zealand; School of Biological Sciences, University of Auckland, Auckland 1142, New Zealand.
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Petersen K, Hultman MT, Rowland SJ, Tollefsen KE. Toxicity of organic compounds from unresolved complex mixtures (UCMs) to primary fish hepatocytes. Aquat Toxicol 2017; 190:150-161. [PMID: 28711771 DOI: 10.1016/j.aquatox.2017.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/06/2017] [Accepted: 06/12/2017] [Indexed: 06/07/2023]
Abstract
Many environmental matrices contaminated with organic pollutants derived from crude oil or degraded petroleum contain mixtures so complex that they are typically unresolved by conventional analytical techniques such as gas chromatography. The resulting chromatographic features have become known as 'humps' or unresolved complex mixtures (UCMs). These UCMs often dominate the organic contaminants of polluted environmental samples: for example, in oil sands produced water up to 150mgL-1 of 'naphthenic acids' appear as UCMs when examined by gas chromatography as the esters. In oil-contaminated mussels, aromatic hydrocarbon UCMs may comprise almost all of the total toxic hydrocarbons, with over 7000μgg-1 dry weight reported in some samples. Over the last 25 years, efforts to resolve and thus identify, or at least to produce average structures, for some UCM components, have proved fruitful. Numerous non-polar UCM hydrocarbons and more polar UCM acids have been identified, then synthesised or purchased from commercial suppliers. As UCMs have been proposed to represent a risk to aquatic organisms, the need for assessment of the ecotoxicological effects and characterisation of the mode of action (MoA) of these environmental pollutants has arisen. In the present study, several chemicals with structures typical of those found in some UCMs, were assessed for their potential to disrupt membrane integrity, inhibit metabolic activity, activate the aryl hydrocarbon receptor (AhR), and activate the estrogen receptor (ER) in primary rainbow trout hepatocytes (Oncorhynchus mykiss). These endpoints were determined in order to screen for common toxic modes of action (MoA) in this diverse group of chemicals. The results from the in vitro screening indicated that of the endpoints tested, the predominant toxic MoA was cytotoxicity. EC50 values for cytotoxicity were obtained for 16 compounds and ranged from 77μM-24mM, whereof aliphatic monocyclic acids, monoaromatic acids, polycyclic monoaromatic acids and alkylnaphthalenes were the most toxic. The observed cytotoxicity of the chemicals correlated well with the hydrophobicity (LogKOW) suggesting that the toxicity was predominantly due to a non-specific MoA. Interestingly, two compounds induced the ER-mediated production of vitellogenin (Vtg) and six compounds induced the AhR-mediated Ethoxyresorufin-O-deethylase (EROD) enzymatic activity to >20% of the positive control; by doing so suggesting that they may act as ER or AhR agonists in fish. The heterogeneous group of 'UCM compounds' tested exhibited multiple MoA that may potentially cause adverse effects in fish. Additional studies to determine if these compounds may cause adverse effects in vivo at environmentally relevant concentrations, are warranted to identify if such compounds are indeed of potential environmental concern.
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Affiliation(s)
- Karina Petersen
- Norwegian Institute for Water Research, Gaustadalleen 21, N-0349 Oslo, Norway
| | - Maria T Hultman
- Norwegian Institute for Water Research, Gaustadalleen 21, N-0349 Oslo, Norway; Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences (NMBU), Post box 5003, N-1432 Ås, Norway
| | - Steven J Rowland
- Petroleum & Environmental Geochemistry Group, Biogeochemistry Research Centre, University of Plymouth, Plymouth, PL4 8AA, Devon, UK
| | - Knut Erik Tollefsen
- Norwegian Institute for Water Research, Gaustadalleen 21, N-0349 Oslo, Norway; Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences (NMBU), Post box 5003, N-1432 Ås, Norway.
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Giltrap M, Ronan J, Bignell JP, Lyons BP, Collins E, Rochford H, McHugh B, McGovern E, Bull L, Wilson J. Integration of biological effects, fish histopathology and contaminant measurements for the assessment of fish health: A pilot application in Irish marine waters. Mar Environ Res 2017; 129:113-132. [PMID: 28501102 DOI: 10.1016/j.marenvres.2017.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 03/03/2017] [Accepted: 04/01/2017] [Indexed: 06/07/2023]
Abstract
This study investigates the use of a weight of evidence (WOE) approach to evaluate fish health status and biological effects (BEs) of contaminants for assessment of ecosystem health and discusses its potential application in support of the Marine Strategy Framework Directive (MSFD). External fish disease, liver histopathology and several BEs of contaminant exposure including 7-ethoxy resorufin O-de-ethylase (EROD), acetylcholinesterase (AChE), bile metabolites, vitellogenin (VTG) and alkali labile phosphates (ALP) were measured in two flatfish species from four locations in Ireland. Contaminant levels in fish were generally low with PCBs in fish liver below OSPAR environmental assessment criteria (EAC). There were consistencies with low PCB levels, EROD and PAH bile metabolite levels detected in fish. Dab from Cork, Dublin and Shannon had the highest relative prevalence of liver lesions associated with the carcinogenic pathway. An integrated biomarker response (IBR) showed promise to be useful for evaluation of environmental risk, although more contaminant parameters in liver are required for a full assessment with the present study.
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Affiliation(s)
- Michelle Giltrap
- Zoology Department, Trinity College Dublin, Dublin 2, Ireland; Nanolab, FOCAS Research Institute, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland.
| | - Jenny Ronan
- Marine Institute, Rinville, Oranmore, Co. Galway, Ireland
| | - John P Bignell
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth, Dorset, DT4 8UB, United Kingdom
| | - Brett P Lyons
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth, Dorset, DT4 8UB, United Kingdom
| | - Evelyn Collins
- Marine Institute, Rinville, Oranmore, Co. Galway, Ireland
| | | | - Brendan McHugh
- Marine Institute, Rinville, Oranmore, Co. Galway, Ireland
| | - Evin McGovern
- Marine Institute, Rinville, Oranmore, Co. Galway, Ireland
| | - Lorraine Bull
- Zoology Department, Trinity College Dublin, Dublin 2, Ireland
| | - James Wilson
- Zoology Department, Trinity College Dublin, Dublin 2, Ireland
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Petersen K, Hultman MT, Tollefsen KE. Primary hepatocytes from Arctic char (Salvelinus alpinus) as a relevant Arctic in vitro model for screening contaminants and environmental extracts. Aquat Toxicol 2017; 187:141-152. [PMID: 28411469 DOI: 10.1016/j.aquatox.2017.03.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 03/24/2017] [Accepted: 03/31/2017] [Indexed: 06/07/2023]
Abstract
Contaminants find their way to the Arctic through long-range atmospheric transport, transport via ocean currents, and through increased anthropogenic activity. Some of the typical pollutants reaching the Arctic (PAHs, PCBs) are known to induce cytochrome P450 1a (CYP1A) protein expression and ethoxyresorufin-O-deethylase (EROD) activity through the aryl hydrocarbon receptor (AhR). In addition, some endocrine disrupting chemicals (EDCs) such as estrogen mimics (xenoestrogens) have been documented in Arctic areas and they may interfere with natural sexual development and reproduction. In vitro assays that are capable of detecting effects of such pollutants, covering multiple endpoints, are generally based on mammalian or temperate species and there are currently no well-characterized cell-based in vitro assays for effect assessment from Arctic fish species. The present study aimed to develop a high-throughput and multi-endpoint in vitro assay from Arctic char (Salvelinus alpinus) to provide a non-animal (alternative) testing method for an ecologically relevant Arctic species. A method for isolation and exposure of primary hepatocytes from Arctic char for studying the toxic effects and mode of action (MoA) of pollutants was applied and validated. The multi-versatility of the bioassay was assessed by classical biomarker responses such as cell viability (membrane integrity and metabolic activity), phase I detoxification (CYP1A protein expression, EROD activity) and estrogen receptor (ER) mediated vitellogenin (Vtg) protein expression using a selection of model compounds, environmental pollutants and an environmental extract containing a complex mixture of pollutants. Primary hepatocytes from Arctic char were successfully isolated and culture conditions optimized to identify the most optimal assay conditions for covering multiple endpoints. The hepatocytes responded with concentration-dependent responses to all of the model compounds, most of the environmental pollutants and the environmental sample tested. The bioassay response and sensitivity of the hepatocytes from Arctic char differed slightly from closely related salmonid species, thus highlighting the need for developing in vitro assays relevant for Arctic species. The present multi-endpoint in vitro assay offer a highly versatile tool to screen potential effects of pollutants and complex samples relevant for Arctic exposure scenarios.
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Affiliation(s)
- Karina Petersen
- Norwegian Institute for Water Research, Gaustadalleen 21, N-0349 Oslo, Norway.
| | - Maria T Hultman
- Norwegian Institute for Water Research, Gaustadalleen 21, N-0349 Oslo, Norway
| | - Knut Erik Tollefsen
- Norwegian Institute for Water Research, Gaustadalleen 21, N-0349 Oslo, Norway; Norwegian University of Life Sciences (NMBU), Post Box 5003, N-1432 Ås, Norway.
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Joachim S, Maria HT, Britt W, Bethanie CA. Determining oxidative stress and EROD activity in dab (Limanda limanda) in the North and Baltic Seas. Mar Environ Res 2017; 124:46-53. [PMID: 27887733 DOI: 10.1016/j.marenvres.2016.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 10/14/2016] [Accepted: 10/31/2016] [Indexed: 06/06/2023]
Abstract
The North and Baltic Seas are heavily trafficked marine areas with extensive anthropogenic activities, including cargo and fishing vessels, waste dumping, oil platforms, industrial activities and contamination from coastal runoff. In order to evaluate the environmental health of these regions, we used the demersal fish dab (Limanda limanda) as a sentinel species. The current study used well-established biomarkers for PAH exposure and oxidative stress, measuring EROD activity, the acute antioxidant response as well as oxidation of proteins detected as protein carbonyl levels. Results show the strongest biomarker results in an area with extensive oil drilling, where dab displayed high levels of EROD activities. This was also seen in dab captured in the Baltic Sea where elevated levels of oxidized glutathione and a trend towards higher EROD activity were observed. The obtained results did, however, not indicate a coherent biomarker response. The study was conducted off shore where many areas have presumably low levels of pollutants, and we could detect minor effects using the biomarker approach.
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Affiliation(s)
- Sturve Joachim
- Department of Biology and Environmental Science, BOX 463, University of Gothenburg, Göteborg, 405 30 Sweden.
| | - Hultman T Maria
- Department of Biology and Environmental Science, BOX 463, University of Gothenburg, Göteborg, 405 30 Sweden.
| | - Wassmur Britt
- Department of Biology and Environmental Science, BOX 463, University of Gothenburg, Göteborg, 405 30 Sweden.
| | - Carney Almroth Bethanie
- Department of Biology and Environmental Science, BOX 463, University of Gothenburg, Göteborg, 405 30 Sweden.
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43
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Zhao Q, Shi F, Zhu L. Prometryn and humic acid induce Cytochrome P450 1A expression in Danio rerio (zebrafish). Ecotoxicol Environ Saf 2017; 135:40-47. [PMID: 27685669 DOI: 10.1016/j.ecoenv.2016.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 09/07/2016] [Accepted: 09/13/2016] [Indexed: 06/06/2023]
Abstract
Humic acid (HA) is a major component of dissolved organic matter, is ubiquitous in the aquatic environment and influences the biological toxicity of organic pollutants. In this study, we investigated the cytochrome P450 1A (CYP 1A) mRNA expression and ethoxyresorufin-O-deethylase (EROD) activity in the gills and liver of zebrafish following exposure to the s-triazine herbicide prometryn with or without HA present. Prometryn induced both CYP 1A mRNA expression and EROD activity. The CYP 1A mRNA expression of zebrafish that were exposed to a combination of prometryn and HA was increased compared to those exposed to prometryn alone. A likely cause for CYP 1A induction is the impact of special components of HA, functioning as aryl hydrocarbon receptor (AHR) agonists. In combination with HA, these increase prometryn levels in tissues. Similar results for EROD activity were evident. In our time course study, CYP 1A mRNA expression reached maximum values during 24h. This revealed CYP 1A mRNA transcription as a comparatively sensitive toxicity index. In a recovery experiment, we found a faster decrease of CYP 1A mRNA expression to control levels (CK) in gills compared to liver tissue. Following exposure to HA, CYP 1A mRNA expression in liver tissue displayed a faster decrease to CK levels. HA induced enhanced metabolic rates for prometryn. In contrast, recovery regularity of CYP 1A expression in gills was independent of the presence of HA. This result indicates different detoxification mechanisms for HA in liver and gills.
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Affiliation(s)
- Qian Zhao
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Feng Shi
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Lin Zhu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China.
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Lei L, Shen X, Jiang M. Effect of water accommodated fraction of 0# diesel oil and crude oil on EROD activity of liver of Sparus macrocephlus and its mRNA expression. Ecotoxicol Environ Saf 2016; 134P1:250-255. [PMID: 27639698 DOI: 10.1016/j.ecoenv.2016.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 08/27/2016] [Accepted: 08/31/2016] [Indexed: 06/06/2023]
Abstract
We studied the effect of water accommodated fractions (WAF) of 0# diesel and crude oil on ethoxy resorufin o-deethylase (EROD) activity and CYP1A1 mRNA expression quantity in the liver of Sparus macrocephlus. We found that there were some differences in the EROD activity and CYP1A1 mRNA induction between these two petroleum hydrocarbons. Both the EROD activity and CYP1A1 mRNA expression of fish exposed to 0# diesel WAF were higher than those of crude oil WAF fish. The EROD activities and CYP1A1 mRNA expressions in the livers 0# diesel WAF exposed group declined faster than those of crude oil WAF and the recovery of EROD activity and CYP1A1 mRNA expression in the crude oil group was higher than that of 0# diesel group.
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Affiliation(s)
- Li Lei
- East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences, Shanghai, China
| | - Xinqiang Shen
- East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences, Shanghai, China
| | - Mei Jiang
- East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences, Shanghai, China.
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45
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Maier D, Benisek M, Blaha L, Dondero F, Giesy JP, Köhler HR, Richter D, Scheurer M, Triebskorn R. Reduction of dioxin-like toxicity in effluents by additional wastewater treatment and related effects in fish. Ecotoxicol Environ Saf 2016; 132:47-58. [PMID: 27262214 DOI: 10.1016/j.ecoenv.2016.04.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 04/25/2016] [Accepted: 04/26/2016] [Indexed: 06/05/2023]
Abstract
Efficiency of advanced wastewater treatment technologies to reduce micropollutants which mediate dioxin-like toxicity was investigated. Technologies compared included ozonation, powdered activated carbon and granular activated carbon. In addition to chemical analyses in samples of effluents, surface waters, sediments, and fish, (1) dioxin-like potentials were measured in paired samples of effluents, surface waters, and sediments by use of an in vitro biotest (reporter gene assay) and (2) dioxin-like effects were investigated in exposed fish by use of in vivo activity of the mixed-function, monooxygenase enzyme, ethoxyresorufin O-deethylase (EROD) in liver. All advanced technologies studied, based on degradation or adsorption, significantly reduced dioxin-like potentials in samples and resulted in lesser EROD activity in livers of fish. Results of in vitro and in vivo biological responses were not clearly related to quantification of targeted analytes by use of instrumental analyses.
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Affiliation(s)
- Diana Maier
- Animal Physiological Ecology, University of Tübingen, Auf der Morgenstelle 5, D-72076 Tübingen, Germany.
| | - Martin Benisek
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, 62500 Brno, Czech Republic.
| | - Ludek Blaha
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, 62500 Brno, Czech Republic.
| | - Francesco Dondero
- Department of Science and Technological Innovation (DISIT), Università del Piemonte Orientale "Amedeo Avogadro" -Alessandria, Novara, Vercelli, Via Michel 11, 15121 Alessandria, Italy.
| | - John P Giesy
- Department of Biomedical Veterinary Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; School of Biological Sciences, University of Hong Kong, Hong Kong, SAR, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China.
| | - Heinz-R Köhler
- Animal Physiological Ecology, University of Tübingen, Auf der Morgenstelle 5, D-72076 Tübingen, Germany.
| | - Doreen Richter
- DVGW Water Technology Center, Karlsruher Straße 84, D-76139 Karlsruhe, Germany.
| | - Marco Scheurer
- DVGW Water Technology Center, Karlsruher Straße 84, D-76139 Karlsruhe, Germany.
| | - Rita Triebskorn
- Animal Physiological Ecology, University of Tübingen, Auf der Morgenstelle 5, D-72076 Tübingen, Germany; Steinbeis Transfer-Center for Ecotoxicology and Ecophysiology, Blumenstraße 13, D-72108 Rottenburg, Germany.
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46
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Berntssen MHG, Ørnsrud R, Rasinger J, Søfteland L, Lock EJ, Kolås K, Moren M, Hylland K, Silva J, Johansen J, Lie K. Dietary vitamin A supplementation ameliorates the effects of poly-aromatic hydrocarbons in Atlantic salmon (Salmo salar). Aquat Toxicol 2016; 175:171-183. [PMID: 27060237 DOI: 10.1016/j.aquatox.2016.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 03/11/2016] [Accepted: 03/19/2016] [Indexed: 06/05/2023]
Abstract
Several studies have reported on the interaction between vitamin A (VA) and aryl hydrocarbon receptor (AhR)-binding toxicants, including poly-aromatic hydrocarbons (PAHs). In aquaculture, the use of plant oils in novel aquafeeds can increase PAH levels while simultaneously lowering natural VA background levels, causing the need to supplement plant oil-based feeds with synthetic VA. To study dietary VA-PAH interactions, Atlantic salmon (initial weight 195±0.15g) were fed four identical plant-based diets that were supplemented with PAHs (100 and 10mgkg(-1) benzo[a]pyrene (BaP) and phenanthrene (Phe), respectively) or VA (retinyl acetate 8721IUkg(-1)) separately or combined for 2.5 months in a 2×2 factorial design, with triplicate net-pens per diet. Dietary PAH significantly reduced hepatic VA storage, and VA-enriched diets restored hepatic VA. There was a significant PAH-VA interaction effect on hepatic BaP, but not Phe, accumulation, with reduced hepatic BaP concentrations in fish fed VA+PAH compared to fish fed PAH alone. Concurrently, PAH and VA significantly interacted in their effects on CYP1A phase I biotransformation as observed from increased ethoxyresorufin-O-deethylase (EROD) activity, increased CYP1A protein concentration, and elevated transcription (cyp1a1 gene expression) in fish fed PAH+VA compared to PAH alone. Dietary VA supplementation alone had no significant effect on CYP1A phase I biotransformation. Metabolomic assessment showed that dietary VA caused a restoration of metabolic intermediates involved in energy metabolism that were affected by dietary PAH. Moreover, a PAH-induced growth inhibition was partially ameliorated by dietary VA supplementation. In conclusion, dietary VA interacted with PAH toxicity on the level of CYP1A-mediated detoxification, hepatic PAH accumulation, energy allocation, and growth.
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Affiliation(s)
| | | | | | | | | | | | | | - Ketil Hylland
- University of Oslo, Department of Bioscience, N-0316 Oslo, Norway
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Eichbaum K, Brinkmann M, Nuesser L, Buchinger S, Reifferscheid G, Codling G, Jones P, Giesy JP, Hecker M, Hollert H. Bioanalytical and instrumental screening of the uptake of sediment-borne, dioxin-like compounds in roach (Rutilus rutilus). Environ Sci Pollut Res Int 2016; 23:12060-12074. [PMID: 26965276 DOI: 10.1007/s11356-016-6377-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 02/29/2016] [Indexed: 06/05/2023]
Abstract
To examine the uptake of dioxin-like compounds (DLCs), common roaches (Rutilus rutilus) were exposed for 28 days to differently contaminated sediments from two major European rivers in a purpose-built facility. Dietary transfer of DLCs was investigated by exposing fish to sediments inoculated or non-inoculated with black worms (Lumbriculus variegatus). Dioxin-like polychlorinated biphenyls (DL-PCBs), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), measured via high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS) in sediments and whole fish, were used to calculate toxicity equivalent quotients (TEQs). TEQs were compared with biological toxicity equivalent quotients (BEQs) determined via the 7-ethoxyresorufin-O-deethylase (EROD) assay, performed with mammalian (H4IIE) and fish (RTL-W1) liver cell lines. TEQs and BEQs indicated an uptake of sediment-borne DLCs by roach, which was independent of sediment contamination levels, but rather reflected sediment-specific characteristics. For most sediment treatments, DLC uptake did not increase with time. Highest congener-specific uptake (DL-PCB 123) was 10-fold compared to control. Exposure to worm-inoculated sediment of highest overall DLC contamination caused a 2-fold (TEQ and H4IIE BEQ) greater uptake of DLCs by fish compared to the respective non-inoculated treatment. H4IIE cells showed the greatest sensitivity (0.37 ± 0.25 pM TCDD) and the strongest correlation with TEQs (r (2) = 0.79), hence, they seem to be best suited for DLC screening of sediments and biota, amended by compound-specific instrumental analysis if required.
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Affiliation(s)
- Kathrin Eichbaum
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
| | - Markus Brinkmann
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
| | - Leonie Nuesser
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
| | - Sebastian Buchinger
- Department G3: Biochemistry, Ecotoxicology, Federal Institute of Hydrology (BfG), Am Mainzer Tor 1, 56068, Koblenz, Germany
| | - Georg Reifferscheid
- Department G3: Biochemistry, Ecotoxicology, Federal Institute of Hydrology (BfG), Am Mainzer Tor 1, 56068, Koblenz, Germany
| | - Garry Codling
- School of the Environment and Sustainability and Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, S7N 5B3, Canada
| | - Paul Jones
- School of the Environment and Sustainability and Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, S7N 5B3, Canada
| | - John P Giesy
- School of the Environment and Sustainability and Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, S7N 5B3, Canada
- Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
- School of Biological Sciences, University of Hong Kong, Hong Kong, SAR, China
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China
- Department of Biology, Hong Kong Baptist University, Hong Kong, SAR, People's Republic of China
| | - Markus Hecker
- School of the Environment and Sustainability and Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, S7N 5B3, Canada
| | - Henner Hollert
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt-Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany.
- Key Laboratory of Yangtze River Environment of Education Ministry of China, College of Environmental Science and Engineering, Tongji University, Shanghai, China.
- College of Resources and Environmental Science, Chongqing University, Chongqing, China.
- School of Environment, Nanjing University, Nanjing, China.
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48
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Hrubik J, Glisic B, Tubic A, Ivancev-Tumbas I, Kovacevic R, Samardzija D, Andric N, Kaisarevic S. Toxicological and chemical investigation of untreated municipal wastewater: Fraction- and species-specific toxicity. Ecotoxicol Environ Saf 2016; 127:153-162. [PMID: 26829069 DOI: 10.1016/j.ecoenv.2016.01.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 01/15/2016] [Accepted: 01/21/2016] [Indexed: 06/05/2023]
Abstract
Absence of a municipal wastewater (WW) treatment plant results in the untreated WW discharge into the recipient. The present study investigated toxic effects and chemical composition of water extracts and fractions from untreated WW and recipient Danube River (DR). Samples were prepared by solid-phase extraction and silica gel fractionation and screened for EROD activity and cytotoxicity using aquatic models, comprising of fish liver cells (PLHC-1) and a model of the early development of zebrafish embryos, while rat (H4IIE) and human (HepG2) hepatoma cells served as mammalian models. Polar fraction caused cytotoxicity and increased the EROD activity in PLHC-1 cells, and increased mortality and developmental abnormalities in developing zebrafish embryos. In H4IIE, polar fraction induced inhibition of cell growth and increased EROD activity, whereas HepG2 exerted low or no response to the exposure. Non-polar and medium-polar fractions were ineffective. Tentative identification by GC/MS showed that WW is characterized by the hydrocarbons, alkylphenols, plasticizers, and a certain number of benzene derivatives and organic acids. In DR, smaller number of organic compounds was identified and toxicity was less pronounced than in WW treatments. The present study revealed the potent toxic effect of polar fraction of untreated WW, with biological responses varying in sensitivity across organisms. Obtained results confirmed that fraction- and species-specific toxicity should be considered when assessing health risk of environmental pollution.
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Affiliation(s)
- Jelena Hrubik
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Laboratory for Ecotoxicology, Novi Sad, Serbia
| | - Branka Glisic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Laboratory for Ecotoxicology, Novi Sad, Serbia
| | - Aleksandra Tubic
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Novi Sad, Serbia
| | - Ivana Ivancev-Tumbas
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Novi Sad, Serbia
| | - Radmila Kovacevic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Laboratory for Ecotoxicology, Novi Sad, Serbia
| | - Dragana Samardzija
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Laboratory for Ecotoxicology, Novi Sad, Serbia
| | - Nebojsa Andric
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Laboratory for Ecotoxicology, Novi Sad, Serbia
| | - Sonja Kaisarevic
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Laboratory for Ecotoxicology, Novi Sad, Serbia.
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Liu H, Nie FH, Lin HY, Ma Y, Ju XH, Chen JJ, Gooneratne R. Developmental toxicity, EROD, and CYP1A mRNA expression in zebrafish embryos exposed to dioxin-like PCB126. Environ Toxicol 2016; 31:201-10. [PMID: 25099626 DOI: 10.1002/tox.22035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 07/22/2014] [Accepted: 07/25/2014] [Indexed: 05/15/2023]
Abstract
Dioxin-like PCB126 is a persistent organic pollutant that causes a range of syndromes including developmental toxicity. Dioxins have a high affinity for aryl hydrocarbon receptor (AhR) and induce cytochrome P4501A (CYP1A). However, the role of CYP1A activity in developmental toxicity is less clear. To better understand dioxin induced developmental toxicity, we exposed zebrafish (Danio rerio) embryos to PCB126 at concentrations of 0, 16, 32, 64, and 128 μg L(-1) from 3-h post-fertilization (hpf) to 168 hpf. The embryonic survival rate decreased at 144 and 168 hpf. The fry at 96 hpf displayed gross developmental malformations, including pericardial and yolk sac edema, spinal curvature, abnormal lower jaw growth, and non-inflated swim bladder. The pericardial and yolk sac edema rate significantly increased and the heart rate declined from 96 hpf compared with the controls. PCB126 did not alter the hatching rate. To elucidate the mechanism of PCB126-induced developmental toxicity, we conducted ethoxyresorufin-O-deethylase (EROD) in vivo assay to determine CYP1A enzyme activity, and real-time PCR to study the induction of CYP1A mRNA gene expression in embryo/larval zebrafish at 24, 72, 96, and 132 hpf. In vivo EROD activity was induced by PCB126 at 16 μg L(-1) concentration as early as 72 hpf but significant increases were observed only in zebrafish exposed to 64 and 128 μg L(-1) doses (p < 0.005) at 72, 96, and 132 hpf. Induction of CYP1A mRNA expression was significantly upregulated in zebrafish exposed to 32 and 64 μg L(-1) at 24, 72, 96, and 132 hpf. Overall, the severe pericardial and yolk sac edema and reduced heart rate suggest that heart defects are a sensitive endpoint, and the general trend of dose-dependent increase in EROD activity and induction of CYP1A mRNA gene expression provide evidence that the developmental toxicity of PCB126 to zebrafish embryos is mediated by activation of AhR.
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Affiliation(s)
- Han Liu
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Fang-Hong Nie
- Department of Food Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Hong-Ying Lin
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Yi Ma
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Xiang-Hong Ju
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Jin-Jun Chen
- Department of Veterinary Medicine, Agricultural College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, 7647, New Zealand
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50
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Azimi S, Rocher V. Influence of the water quality improvement on fish population in the Seine River (Paris, France) over the 1990-2013 period. Sci Total Environ 2016; 542:955-964. [PMID: 26562342 DOI: 10.1016/j.scitotenv.2015.10.094] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 10/19/2015] [Accepted: 10/19/2015] [Indexed: 06/05/2023]
Abstract
Over the past 20 years, rules concerning wastewater treatment and quality of water discharged into the environment have changed considerably. Huge investments have been made in Paris conurbation to improve waste water treatment processes in accordance with the European Water Framework Directive. The interdepartmental association for sewage disposal in Paris conurbation (SIAAP) carried out a monitoring of both fish assemblages and water quality in the Seine River around the Paris conurbation (France) since the early 90's. The main goal of this study was to estimate the influence of the water quality improvement on fish. On one hand, the study confirmed the improvement of the water quality (dissolved oxygen, ammonia nitrogen, organic matter) in the Seine River, mostly focused downstream of Paris conurbation. On the other hand, an increase of the number of species occurred from 1990 (14) to 2013 (21). Moreover, changes in the river Seine assemblages happened over that 23-year period with emergence of sensitive species (ruffe, scalpin and pike-perch). The improvement of the water quality was also reported with respect to the Index of Biotic Integrity (IBI). However, no variation of pollutant concentrations in roach, eel and chub muscles has been observed. An exceedance of the environmental quality standards have even been reported all over this period as regards mercury and organochlorine.
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Affiliation(s)
- Sam Azimi
- SIAAP-DDP, 82 Avenue Kleber, F 92 700 Colombes, France.
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