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Briaudeau T, Alves Dos Santos LA, Zorita I, Izagirre U, Marigómez I. Biological responses and toxicopathic effects elicited in Solea senegalensis juveniles by waterborne exposure to benzo[a]pyrene. Mar Environ Res 2021; 170:105351. [PMID: 34015608 DOI: 10.1016/j.marenvres.2021.105351] [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: 01/23/2021] [Revised: 04/29/2021] [Accepted: 05/02/2021] [Indexed: 06/12/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are priority contaminants in coastal and estuarine ecosystems under anthropogenic pressure. Although PAHs tend to accumulate in the sediment, toxicity for benthic flat fish such as soles may be caused by PAHs released from the sediment to the water column. Within this context, the present investigation aims at recognizing toxicopathic effects elicited after waterborne exposure to benzo[a]pyrene B[a]P, a model individual PAH compound, in juvenile Solea senegalensis. Sole juveniles were exposed to various concentrations of waterborne B[a]P for 3 and 7 days. Brain, liver, gills and gonad were the target tissues selected to determine biochemical and lysosomal biomarkers, and histopathology. Biological responses and toxicopathic effects were consistent with B[a]P concentration and exposure time. From day 3, hepatic catalase inhibition indicated potential oxidative effects of B[a]P. At day 7, contaminant exposure produced hepatic glutathione-S-transferase induction at low concentrations and inhibition at higher levels, evidencing a bell-shaped response. A clear gradient in lysosomal membrane destabilisation was observed in relation with B[a]P concentrations. Histopathological lesions were more frequent at day 7 and at higher contaminant levels. It seems that environmentally relevant waterborne concentrations of B[a]P (1000 ng/l) would suffice to cause toxicopathic effects on sole juveniles in relatively short exposure times. In agreement, the Integrative Biological Response index (IBR/n) indicated a dose-dependent decline in health condition upon exposure to B[a]P (IBR/nHighB[a]P > IBR/nMidB[a]P > IBR/nLowB[a]P > IBR/nDMSO > IBR/nControl). Overall, changes in antioxidant enzymes activity, lysosomal biomarkers and gill and liver histopathology are responsive early-warning signs of health disturbance in sole juveniles exposed to waterborne PAHs.
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Affiliation(s)
- Tifanie Briaudeau
- Cell Biology in Environmental Toxicology Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country(UPV/EHU), Basque Country, Spain
| | - Luis Alejandro Alves Dos Santos
- Cell Biology in Environmental Toxicology Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country(UPV/EHU), Basque Country, Spain
| | - Izaskun Zorita
- AZTI, Herrera Kaia, Portualdea z/g, 20110, Pasaia-Gipuzkoa, Basque Country, Spain
| | - Urtzi Izagirre
- Cell Biology in Environmental Toxicology Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country(UPV/EHU), Basque Country, Spain
| | - Ionan Marigómez
- Cell Biology in Environmental Toxicology Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country(UPV/EHU), Basque Country, Spain.
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Briaudeau T, Zorita I, Izagirre U, Marigómez I. Biological responses and toxicopathic effects elicited in Solea senegalensis juveniles on exposure to contaminated sediments under laboratory conditions. Sci Total Environ 2020; 731:138849. [PMID: 32408203 DOI: 10.1016/j.scitotenv.2020.138849] [Citation(s) in RCA: 2] [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: 01/23/2020] [Revised: 04/15/2020] [Accepted: 04/18/2020] [Indexed: 06/11/2023]
Abstract
Whole-sediment toxicity assays contribute to elucidating the intricate association between the presence of contaminants in sediments and their toxicopathic effects in benthic fish. In the present study, Solea senegalensis juveniles were exposed under laboratory conditions to contaminated whole-sediments for 7 and 28 days. Sediments were obtained from a low to moderately polluted estuary, a highly polluted harbour and from the mixture of both field-collected sediments. Biometry data were recorded. Liver, brain, gills, and gonads were dissected out and processed to determine markers of oxidative stress, neurotoxicity and lysosomal biomarkers, and histopathology. Analyses of sediment granulometry and chemical profiles indicated different degrees of toxicity and suggested a distinct release of pollutants from each sediment in relation with their physicochemical properties. Interestingly, biological responses were in agreement with contaminant levels reported in source sediments. The most distinct toxicopathic effects were detected upon exposure to the harbour's sediment and particularly on day 28. Overall, enhanced hepatic glutathione-S-transferase activity and lysosomal enlargement were detected in all experimental groups, demonstrating a toxic effect from all sediments whilst catalase inhibition, lysosomal membrane destabilisation, changes in lysosomal content and liver histopathology were most pronounced in soles exposed to the harbour's sediment. The Integrative Biomarker Response index (IBR/n) evidenced that exposure to the three sediments caused an impact of diverse magnitude in sole health (IBR/nHarbour > IBR/nMixture > IBR/nEstuary). The magnitude of biological responses essentially depended on the presence of contaminants in source sediments, which seemed to be altered by the conditions imposed by whole-sediment toxicity assays.
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Affiliation(s)
- Tifanie Briaudeau
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country, Leioa-Bizkaia, Basque Country, Spain; CBET Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Plentzia-Bizkaia, Basque Country, Spain
| | - Izaskun Zorita
- AZTI, Herrera Kaia, Portualdea z/g, 20110 Pasaia-Gipuzkoa, Basque Country, Spain
| | - Urtzi Izagirre
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country, Leioa-Bizkaia, Basque Country, Spain; CBET Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Plentzia-Bizkaia, Basque Country, Spain
| | - Ionan Marigómez
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country, Leioa-Bizkaia, Basque Country, Spain; CBET Research Group, Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country, Plentzia-Bizkaia, Basque Country, Spain.
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Guedes TDA, Moreira-de-Sousa C, Lima HMS, Grella TC, Socolowski PC, Fontanetti CS. Cytoprotective and anti-apoptotic action of HSP70 stress protein in Oreochromis niloticus exposed to residual dilutions of insecticides with fipronil and ethiprole. J Environ Sci Health B 2020; 55:687-693. [PMID: 32432968 DOI: 10.1080/03601234.2020.1766898] [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] [Indexed: 06/11/2023]
Abstract
The objective of this research was to investigate the potential damage caused by the residual concentrations of the insecticides Regent® WS 800 and Curbix® SC 200, containing fipronil and ethiprole, respectively as active ingredients, on the liver of Oreochromis niloticus. The analyses of HSP70 shock protein labelling and cell death process by TUNEL method were performed in order to measure the effects of the exposure of cell repair system of fish to both insecticides. Statistical analyses showed no significant molecular damage to the hepatic tissue of animals. Nevertheless, variations in HSP70 and DNA fragmentation levels, endpoint of cell repair system response and cellular death, respectively, were observed in several groups. These results indicate that the cell repair machinery was efficient when in contact with residual concentrations of insecticides. However, the DNA fragmentation detected by the TUNEL method suggests that even in face of the cytoprotective action of the HSP70 protein, there are damages that become irreparable. To finish, it is worth mentioning that given the results obtained from residual concentrations, use in the field should be with caution.
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Affiliation(s)
- Thays de Andrade Guedes
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Cristina Moreira-de-Sousa
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Hellen Maria Soares Lima
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Tatiane Caroline Grella
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Priscila Cintra Socolowski
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Carmem Silvia Fontanetti
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
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Dey S, Ghosh AR. Dose-specific biochemical and erythrocytic alterations of anthracene exposure on blood of Anabas testudineus (Bloch). Environ Toxicol Pharmacol 2019; 72:103247. [PMID: 31473557 DOI: 10.1016/j.etap.2019.103247] [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: 04/16/2019] [Revised: 07/31/2019] [Accepted: 08/24/2019] [Indexed: 06/10/2023]
Abstract
The present work is designed to compare the chronic toxicity of anthracene [one of the major constituents of polycyclic aromatic hydrocarbons (PAHs)] on Anabas testudineus (Bloch), in an air-breathing carnivorous fish, in laboratory condition under the exposure of two doses of LC50 value, i.e., 0.0075 mg/l (T1), i.e., 25% and 0.015 mg/l (T2) i.e., 50% for 21 days. A comprehensive comparison was recorded based on biochemical parameters and evaluated the erythrocytic alterations of blood components of the fish. It revealed an enhanced trend of activity of glutamic pyruvic transamin (GPT) 470.7 ± 12.32, 546.6 ± 13.22, 599.4 ± 13.09 U/L and alkaline phosphatase (ALP) 9.2 ± 0.61, 10.4 ± 0.86, 10.9 ± 0.74 U/L in control, T1 and T2 respectively; and reverse trend of protein (PRO) 26.63 ± 1.32, 22.15 ± 1.13, 22.29 ± 1.02 g/dl and albumin (ALB) 11.9 ± 0.71, 9.65 ± 0.91, 10.05 ± 0.94 g/dl in control, T1 and T2 respectively. Under T1 and T2 exposure conditions, it displayed the maximum alterations and appearance of tear drop-like cells (Tr), sickle cells (Sk), swelled cells (Sc) and vacuolated cells (Va) in comparison to control condition. An exclusive experimentation of the present work suggested that biochemical parameters and erythrocytic alterations may be useful tool as biomarkers to monitor the long term toxicological effects, especially to anthracene a constituent of PAHs, in any aquatic environment.
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Affiliation(s)
- Sukhendu Dey
- Department of Environmental Science, The University of Burdwan, Burdwan 713104, West Bengal, India.
| | - Apurba Ratan Ghosh
- Department of Environmental Science, The University of Burdwan, Burdwan 713104, West Bengal, India.
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Briaudeau T, Zorita I, Cuevas N, Franco J, Marigómez I, Izagirre U. Multi-annual survey of health status disturbance in the Bilbao estuary (Bay of Biscay) based on sediment chemistry and juvenile sole (Solea spp.) histopathology. Mar Pollut Bull 2019; 145:126-137. [PMID: 31590768 DOI: 10.1016/j.marpolbul.2019.05.034] [Citation(s) in RCA: 5] [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: 01/24/2019] [Revised: 05/13/2019] [Accepted: 05/15/2019] [Indexed: 06/10/2023]
Abstract
The Bilbao estuary (SE Bay of Biscay) is a recovering ecosystem whose sediments are still contaminated. They represent a potential risk for the biota including benthic and demersal species living in direct contact with the sediment. In this context, the present study aims to survey trends of the health status of the Bilbao estuary based on sediment chemistry and sole (Solea spp.) histopathology. Monitoring campaigns were carried out every autumn from 2011 to 2017 along the estuary. Contaminant levels were measured in sediments; liver, gills and gonads of juvenile fish were collected for histopathology. Overall, contaminant levels fluctuated throughout the years, with highest values recorded in the earlier years of the study period. Sole histopathology showed alterations of mild severity. Results permitted to assess the environmental health status of the Bilbao estuary during 7 years, although no clear temporal trend was detected. Longer-term monitoring programmes are necessary to confirm the ecosystem recovery.
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Affiliation(s)
- T Briaudeau
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country UPV/EHU, Basque Country, Spain
| | - I Zorita
- AZTI, Herrera Kaia, Portualdea z/g, 20110 Pasaia, Spain
| | - N Cuevas
- AZTI, Herrera Kaia, Portualdea z/g, 20110 Pasaia, Spain
| | - J Franco
- AZTI, Herrera Kaia, Portualdea z/g, 20110 Pasaia, Spain
| | - I Marigómez
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country UPV/EHU, Basque Country, Spain.
| | - U Izagirre
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country UPV/EHU, Basque Country, Spain
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Jung JH, Moon YS, Kim BM, Lee YM, Kim M, Rhee JS. Comparative analysis of distinctive transcriptome profiles with biochemical evidence in bisphenol S- and benzo[a]pyrene-exposed liver tissues of the olive flounder Paralichthys olivaceus. PLoS One 2018; 13:e0196425. [PMID: 29715276 PMCID: PMC5929548 DOI: 10.1371/journal.pone.0196425] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/12/2018] [Indexed: 02/06/2023] Open
Abstract
Flounder is a promising model species for environmental monitoring of coastal regions. To assess the usefulness of liver transcriptome profiling, juvenile olive flounder Paralichthys olivaceus were exposed to two pollutants, bisphenol S (BPS) and benzo[a]pyrene (BaP), which have different chemical characteristics and have distinct modes of metabolic action in teleost. Six hours after intraperitoneal injection with BPS (50 mg/kg bw) or BaP (20 mg/kg bw), liver transcriptomes were analyzed using the Illumina Hiseq 3000 platform. Interestingly, the transcriptome was highly sensitive and was distinctively expressed in response to each chemical. The primary effect of BPS was significantly increased transcription of egg process and vitellogenesis related genes, including vitellogenins (vtg1, vtg2), zona pellucida sperm-binding proteins (zp3, zp4), and estrogen receptors (erα, erβ), with increases in plasma 17β-estradiol (E2) and vitellogenin (VTG) concentrations. Following BaP treatment, detoxification- and biotransformation-related genes such as cyp1a1 and UDP-glucuronosyltransferase (ugt1a1) were significantly increased, with an increase in EROD activity. In both transcriptomes, mRNA expression of genes involved in antioxidant defense systems was increased, while genes involved in innate immunity were decreased upon BPS or BaP exposure with a decrease in complement activity. This study provides useful insight into the chemical-specific hepatic transcriptional response of P. olivaceus and suggests a basis for further studies examining biomarker application of liver transcriptomes for environmental pollution.
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Affiliation(s)
- Jee-Hyun Jung
- Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje, South Korea
- Department of Marine Environmental Science, Korea University of Science and Technology, Daejeon, South Korea
- * E-mail: (JHJ); (JSR)
| | - Young-Sun Moon
- Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje, South Korea
| | - Bo-Mi Kim
- Unit of Polar Genomics, Korea Polar Research Institute, Incheon, South Korea
| | - Young-Mi Lee
- Department of Life Science, College of Natural Sciences, Sangmyung University, Seoul, South Korea
| | - Moonkoo Kim
- Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje, South Korea
- Department of Marine Environmental Science, Korea University of Science and Technology, Daejeon, South Korea
| | - Jae-Sung Rhee
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon, South Korea
- Research Institute of Basic Sciences, Incheon National University, Incheon, South Korea
- * E-mail: (JHJ); (JSR)
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Bo J, Zheng R, Kuang W, Hong F, Xie Q, Zhang Y. The use of rockfish Sebastiscus marmoratus as a sentinel species to assess petroleum hydrocarbons pollution: A case study in Quanzhou Bay, China. Mar Pollut Bull 2017; 124:984-992. [PMID: 28109655 DOI: 10.1016/j.marpolbul.2017.01.025] [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: 09/28/2016] [Revised: 01/08/2017] [Accepted: 01/12/2017] [Indexed: 06/06/2023]
Abstract
To monitor the biological effects of marine pollution, choosing a native fish species and establishing suitable biomarkers are required. In this study, the full-length cDNA of cyp1a1 was cloned from Sebastiscus marmoratus (SM-CYP1A1). Then the dose-response and time-course induction of hepatic CYP1A1 mRNA by the crude oil water-soluble fraction (WSF) were determined. Subsequently, SM-CYP1A1 mRNA was applied to investigate the biological effect of petroleum hydrocarbon pollution in Quanzhou Bay, China. The transcription levels of hepatic CYP1A1 were significantly elevated in fish caged in the polluted sites for 2weeks compared with those of the reference site, which were correlated with the concentrations of petroleum hydrocarbon and polycyclic aromatic hydrocarbon (PAH) in the surface seawaters. The results suggest that S. marmoratus is a potential sentinel organism to monitor marine pollutants and the hepatic CYP1A1 mRNA can serve as a sensitive biomarker to organic xenobiotics in aquatic environments.
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Affiliation(s)
- Jun Bo
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - Ronghui Zheng
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - Weiming Kuang
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - Fukun Hong
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - Qing Xie
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, China
| | - Yusheng Zhang
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, China.
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Araújo FG, Morado CN, Parente TTE, Paumgartten FJR, Gomes ID. Biomarkers and bioindicators of the environmental condition using a fish species (Pimelodus maculatus Lacepède, 1803) in a tropical reservoir in Southeastern Brazil. BRAZ J BIOL 2017; 78:351-359. [DOI: 10.1590/1519-6984.167209] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 12/19/2016] [Indexed: 11/22/2022] Open
Abstract
Abstract The Funil Reservoir receives a large amount of xenobiotics from the Paraíba do Sul River (PSR) from large number of industries and municipalities in the watershed. This study aimed to assess environmental quality along the longitudinal profile of the Paraíba do Sul River–Funil Reservoir system, by using biomarkers and bioindicators in a selected fish species. The raised hypothesis is that Funil Reservoir acts as a filter for the xenobiotics of the PSR waters, improving river water quality downstream the dam. Two biomarkers, the ethoxyresorufin–O–deethylase activity (EROD), measured as fluorimetricly in S9 hepatic fraction, and the micronuclei frequency (MN), observed in erythrocytes of the cytoplasm, and three bioindicators, the hepatosomatic index (HSI), gonadosomatic index (GSI) and condition factor (CF) were used in Pimelodus maculatus, a fish species widely distributed in the system. Four zones were searched through a longitudinal gradient: 1, river upstream from the reservoir; 2, upper reservoir; 3, lower reservoir; 4, river downstream of the reservoir. EROD activity and HSI and GSI had significant differences among the zones (P<0.05). The upper reservoir had the lowest EROD activity and HSI, whereas the river downstream of the reservoir had the highest EROD and lowest GSI. The river upstream from the reservoir showed the highest HSI and GSI. It is suggested that the lowest environmental condition occur at the river downstream of the reservoir, where it seems to occur more influence of xenobiotics, which could be associated with hydroelectric plant operation. The hypothesis that Funil reservoir acts as a filter decanting pollution from the Paraíba do Sul River waters was rejected. These results are novel information on this subject for a native fish species and could be useful for future comparisons with other environments.
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Affiliation(s)
- F. G. Araújo
- Universidade Federal Rural do Rio de Janeiro, Brazil
| | - C. N. Morado
- Universidade Federal Rural do Rio de Janeiro, Brazil
| | | | | | - I. D. Gomes
- Universidade Federal Rural do Rio de Janeiro, Brazil
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Pampanin DM, Brooks SJ, Grøsvik BE, Le Goff J, Meier S, Sydnes MO. DNA adducts in marine fish as biological marker of genotoxicity in environmental monitoring: The way forward. Mar Environ Res 2017; 125:49-62. [PMID: 28167386 DOI: 10.1016/j.marenvres.2017.01.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 09/15/2016] [Revised: 01/17/2017] [Accepted: 01/19/2017] [Indexed: 05/25/2023]
Abstract
DNA adducts in fish represent a very important genotoxicity endpoint in environmental monitoring, being a pre-mutagenic lesion that plays an essential role in the initiation of carcinogenesis. The analysis of DNA adducts is a challenging task due to the low concentration of the analyte. Methods are available to determine the presence of DNA adducts, although further knowledge is required to fully understand the nature of the adducts and responsible xenobiotics (i.e. position of adduct in DNA, most active xenobiotic and metabolite forms, structural information). At present, 32P-postlabeling is the most used method that has the required sensitivity for DNA adduct analyses in both human health and environmental monitoring. Development of new mass spectrometry based methods for identifying DNA adducts in complex matrixes is now considered as a necessary mission in toxicology in order to gain the necessary information regarding adduct formation and facilitate tracking sources of contamination. Mass spectrometry therefore represents the future of DNA adduct detection, bringing along a series of challenges that the scientific community is facing at present.
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Affiliation(s)
- Daniela M Pampanin
- International Research Institute of Stavanger, Mekjarvik 12, NO-4070 Randaberg, Norway; Faculty of Science and Technology, Department of Mathematics and Natural Science, University of Stavanger, NO-4036 Stavanger, Norway.
| | - Steven J Brooks
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, NO-0349 Oslo, Norway
| | | | - Jérémie Le Goff
- ADn'tox, Bâtiment Recherche, Centre François Baclesse 3, Avenue du Général Harris, 14076 Caen Cedex 5, France
| | - Sonnich Meier
- Institute of Marine Research, Box 1870, Nordnes, NO-5817 Bergen, Norway
| | - Magne O Sydnes
- Faculty of Science and Technology, Department of Mathematics and Natural Science, University of Stavanger, NO-4036 Stavanger, Norway
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Pampanin DM, Le Goff J, Skogland K, Marcucci CR, Øysæd KB, Lorentzen M, Jørgensen KB, Sydnes MO. Biological effects of polycyclic aromatic hydrocarbons (PAH) and their first metabolic products in in vivo exposed Atlantic cod (Gadus morhua). J Toxicol Environ Health A 2016; 79:633-646. [PMID: 27484143 DOI: 10.1080/15287394.2016.1171993] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The monitoring of the presence of polycyclic aromatic hydrocarbons (PAH) in the aquatic environment is a worldwide activity since some of these compounds are well-established carcinogens and mutagens. Contaminants in this class are in fact regarded as priority hazardous substances for environmental pollution (Water Framework Directive 2000/60/EC). In this study, Atlantic cod (Gadus morhua) was selected to assess in vivo effects of two PAH and their first metabolic products, namely, the corresponding trans-dihydrodiols, using biological markers. Fish were exposed for 1 wk to a single PAH (naphthalene or chrysene) and its synthetic metabolites ((1R,2R)-1,2-dihydronaphthalene-1,2-diol and (1R,2R)-1,2-dihydrochrysene-1,2-diol) by intraperitoneal injection in a continuous seawater flow system. After exposure, PAH metabolism including PAH metabolites in bile and ethoxyresorufin O-deethylase (EROD) activity, oxidative stress glutathione S-transferases (GST) and catalase (CAT) activities, and genotoxicity such as DNA adducts were evaluated, as well as general health conditions including condition index (CI), hepatosomatic index (HSI), and gonadosomatic index (GSI). PAH metabolite values were low and not significantly different when measured with the fixed-wavelength fluorescence screening method, while the gas chromatography-mass spectroscopy (GC-MS) method showed an apparent dose response in fish exposed to naphthalene. DNA adduct levels ≥0.16 × 10(-8) relative adduct level (RAL) were detected. It should be noted that 0.16 × 10(-8) RAL is considered the maximal acceptable background level for this species. The other biomarkers activities of catalase, GST, and EROD did not display a particular compound- or dose-related response. The GSI values were significantly lower in some chrysene- and in both naphthalene- and naphthalene diol-exposed groups compared to control.
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Affiliation(s)
- Daniela M Pampanin
- a International Research Institute of Stavanger (IRIS) , Environment Department , Randaberg , Norway
| | | | - Karianne Skogland
- a International Research Institute of Stavanger (IRIS) , Environment Department , Randaberg , Norway
| | - Cristian R Marcucci
- a International Research Institute of Stavanger (IRIS) , Environment Department , Randaberg , Norway
- c Faculty of Science and Technology, Department of Mathematics and Natural Science , University of Stavanger , Stavanger , Norway
| | - Kjell Birger Øysæd
- a International Research Institute of Stavanger (IRIS) , Environment Department , Randaberg , Norway
| | - Marianne Lorentzen
- c Faculty of Science and Technology, Department of Mathematics and Natural Science , University of Stavanger , Stavanger , Norway
| | - Kåre B Jørgensen
- c Faculty of Science and Technology, Department of Mathematics and Natural Science , University of Stavanger , Stavanger , Norway
| | - Magne O Sydnes
- c Faculty of Science and Technology, Department of Mathematics and Natural Science , University of Stavanger , Stavanger , Norway
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Cuevas N, Zorita I, Costa PM, Larreta J, Franco J. Histopathological baseline levels and confounding factors in common sole (Solea solea) for marine environmental risk assessment. Mar Environ Res 2015; 110:162-173. [PMID: 26364682 DOI: 10.1016/j.marenvres.2015.09.002] [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: 07/01/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 06/05/2023]
Abstract
Liver and gonad histopathology, biometric parameters and hepatic metal bioaccumulation were assessed monthly over a one-year period in common soles from the Basque continental shelf, in order to determine baseline levels and confounding factors within biomonitoring studies. Biometric parameters and hepatic metal bioaccumulation varied according to season and gender. Accordingly, hepatic histopathological traits presented seasonal variations related to the reproductive cycle. However, the hepatic histopathological index showed that seasonality and gender were not significant confounding factors. Conversely, the gonad histopathological index was modulated by season and gender. As for organ comparison, the liver endured more severe histopathological damage than the gonad. In brief, the sampling period and gender may not affect the estimation of hepatic histopathological indices for biomonitoring purposes. Nonetheless, due to different sensitivities to environmental 'noise' variables, the sampling period and gender differentiation should be thoroughly considered for the assessment of gonad histopathology, biometrics and metal bioaccumulation.
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Affiliation(s)
- N Cuevas
- AZTI, Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain.
| | - I Zorita
- AZTI, Herrera Kaia, Portualdea z/g, 20110, Pasaia, Spain
| | - P M Costa
- MARE - Marine and Environmental Sciences Centre, Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - J Larreta
- AZTI, Herrera Kaia, Portualdea z/g, 20110, Pasaia, Spain
| | - J Franco
- AZTI, Herrera Kaia, Portualdea z/g, 20110, Pasaia, Spain
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Dupuy C, Galland C, Pichereau V, Sanchez W, Riso R, Labonne M, Amara R, Charrier G, Fournier M, Laroche J. Assessment of the European flounder responses to chemical stress in the English Channel, considering biomarkers and life history traits. Mar Pollut Bull 2015; 95:634-645. [PMID: 25499967 DOI: 10.1016/j.marpolbul.2014.11.033] [Citation(s) in RCA: 4] [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: 05/28/2014] [Revised: 10/31/2014] [Accepted: 11/20/2014] [Indexed: 06/04/2023]
Abstract
A multi-biomarker approach was developed to evaluate responses of European flounder (Platichthys flesus) in three contrasted estuaries over the English Channel: the Canche (pristine site), Tamar (heavy metals and PAHs contamination) and Seine (heavily pollution with a complex cocktail of contaminants). The condition factor and several biomarkers of the immune system, antioxidant enzymes, energetic metabolism and detoxification processes were investigated in young-of-the-year (0+) and one-year-old (1+) flounder. Results underlined the difference between the pristine site and the Seine estuary which showed a lower condition factor, a modulation of the immune system, a higher Cytochrome C oxidase activity, and an up-regulation of BHMT expression. The moderate biomarker responses in the Tamar fish could be linked to the specific contamination context of this estuary. Flounder life history traits were analyzed by otolith microchemistry, in order to depict how the fish use their habitat and thus respond to chemical stress in estuaries.
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Affiliation(s)
- Célie Dupuy
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France; Institut National de la Recherche Scientifique, Institut Armand-Frappier (INRS-IAF), 31 Boulevard des Prairies, Laval, Québec H7V 1B7, Canada.
| | - Claire Galland
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
| | - Vianney Pichereau
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
| | - Wilfried Sanchez
- Institut National de l'Environnement Industriel et des Risques, Pôle "Dangers et impact sur le vivant", Unité d'écotoxicologie in vitro et in vivo, Parc Technologique ALATA, 60550 Verneuil en Halatte, France
| | - Ricardo Riso
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
| | - Maylis Labonne
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France; Centre IRD de Bretagne, BP 70, 29280 Plouzané, France
| | - Rachid Amara
- Université Lille Nord de France, ULCO LOG, CNRS UMR 8187, F-62930 Wimereux, France
| | - Grégory Charrier
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
| | - Michel Fournier
- Institut National de la Recherche Scientifique, Institut Armand-Frappier (INRS-IAF), 31 Boulevard des Prairies, Laval, Québec H7V 1B7, Canada
| | - Jean Laroche
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
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13
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Cuevas N, Zorita I, Costa PM, Quincoces I, Larreta J, Franco J. Histopathological indices in sole (Solea solea) and hake (Merluccius merluccius) for implementation of the European Marine Strategy Framework Directive along the Basque continental shelf (SE Bay of Biscay). Mar Pollut Bull 2015; 94:185-198. [PMID: 25772424 DOI: 10.1016/j.marpolbul.2015.02.030] [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: 11/30/2014] [Revised: 02/13/2015] [Accepted: 02/19/2015] [Indexed: 06/04/2023]
Abstract
Sole and hake, together with sediments, were collected during two campaigns along the Basque continental shelf to study the utility of two existing histopathological indices for assessing the biological effects of contaminants to implement the European Marine Strategy Framework Directive. Hepatic and gonadal histopathology were measured, and metal and/or organic contaminants were determined in both liver and sediments. Sediments from the Basque continental shelf were found to be moderately impacted by metals but non-impacted by organic compounds. Metal bioaccumulation and histopathological lesions in liver were higher in sole than in hake, although non-specific and early non-neoplastic toxicopathic lesions were observed in both species. No gross alterations were recorded in gonad. The two histopathological indices applied were highly correlated in both organs but the lack of correlation between sediment contamination levels, bioaccumulation and histopathological indices suggests that other factors, rather than pollution alone, are responsible for the biological effects observed.
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Affiliation(s)
- Nagore Cuevas
- AZTI-Tecnalia, Txatxarramendi ugartea z/g, 48395 Sukarrieta, Spain.
| | - Izaskun Zorita
- AZTI-Tecnalia, Herrera Kaia, Portualdea z/g, 20110 Pasaia, Spain
| | - Pedro M Costa
- MARE-Marine and Environmental Sciences Centre, Departamento de Ciências e Engenharia, Faculdade de ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Iñaki Quincoces
- AZTI-Tecnalia, Txatxarramendi ugartea z/g, 48395 Sukarrieta, Spain
| | - Joana Larreta
- AZTI-Tecnalia, Herrera Kaia, Portualdea z/g, 20110 Pasaia, Spain
| | - Javier Franco
- AZTI-Tecnalia, Herrera Kaia, Portualdea z/g, 20110 Pasaia, Spain
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Sturve J, Balk L, Liewenborg B, Adolfsson-Erici M, Förlin L, Carney Almroth B. Effects of an oil spill in a harbor assessed using biomarkers of exposure in eelpout. Environ Sci Pollut Res Int 2014; 21:13758-13768. [PMID: 24819434 PMCID: PMC4236613 DOI: 10.1007/s11356-014-2890-z] [Citation(s) in RCA: 5] [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: 09/18/2013] [Accepted: 04/04/2014] [Indexed: 05/29/2023]
Abstract
Oil spills occur commonly, and chemical compounds originating from oil spills are widespread in the aquatic environment. In order to monitor effects of a bunker oil spill on the aquatic environment, biomarker responses were measured in eelpout (Zoarces viviparus) sampled along a gradient in Göteborg harbor where the oil spill occurred and at a reference site, 2 weeks after the oil spill. Eelpout were also exposed to the bunker oil in a laboratory study to validate field data. The results show that eelpout from the Göteborg harbor are influenced by contaminants, especially polycyclic aromatic hydrocarbons (PAHs), also during "normal" conditions. The bunker oil spill strongly enhanced the biomarker responses. Results show elevated ethoxyresorufin-O-deethylase (EROD) activities in all exposed sites, but, closest to the oil spill, the EROD activity was partly inhibited, possibly by PAHs. Elevated DNA adduct levels were also observed after the bunker oil spill. Chemical analyses of bile revealed high concentrations of PAH metabolites in the eelpout exposed to the oil, and the same PAH metabolite profile was evident both in eelpout sampled in the harbor and in the eelpout exposed to the bunker oil in the laboratory study.
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Affiliation(s)
- Joachim Sturve
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, SE-405 30, Göteborg, Sweden,
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15
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Mu J, Jin F, Ma X, Lin Z, Wang J. Comparative effects of biological and chemical dispersants on the bioavailability and toxicity of crude oil to early life stages of marine medaka (Oryzias melastigma). Environ Toxicol Chem 2014; 33:2576-2583. [PMID: 25113786 DOI: 10.1002/etc.2721] [Citation(s) in RCA: 10] [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: 04/27/2014] [Revised: 07/25/2014] [Accepted: 08/07/2014] [Indexed: 06/03/2023]
Abstract
The authors assessed the bioavailability and chronic toxicity of water-accommodated fractions of crude oil (WAFs) and 2 dispersants plus dispersed crude oil (chemical dispersant + crude oil [CE-WAF] and biological dispersant + crude oil [BE-WAF]) on the early life stages of marine medaka, Oryzias melastigma. The results showed that the addition of the 2 dispersants caused a 3- and 4-fold increase in concentrations of summed priority polycyclic aromatic hydrocarbons (PAHs) and high-molecular-weight PAHs with 3 or more benzene rings. The chemical and biological dispersants increased the bioavailability (as measured by ethoxyresorufin-O-dethylase activity) of crude oil 6-fold and 3-fold, respectively. Based on nominal concentrations, chronic toxicity (as measured by deformity) in WAFs exhibited a 10-fold increase in CE-WAF and a 3-fold increase in BE-WAF, respectively. When total petroleum hydrocarbon was measured, the differences between WAF and CE-WAF treatments disappeared, and CE-WAF was approximately 10 times more toxic than BE-WAF. Compared with the chemical dispersant, the biological dispersant possibly modified the toxicity of oil hydrocarbons because of the increase in the proportion of 2- and 3-ringed PAHs in water. The chemical and biological dispersants enhanced short-term bioaccumulation and toxicity, through different mechanisms. These properties should be considered in addition to their efficacy in degrading oil when oil spill management strategies are selected.
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Affiliation(s)
- Jingli Mu
- Division of Marine Chemistry, National Marine Environmental Monitoring Center, Dalian, China
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Williams TD, Davies IM, Wu H, Diab AM, Webster L, Viant MR, Chipman JK, Leaver MJ, George SG, Moffat CF, Robinson CD. Molecular responses of European flounder (Platichthys flesus) chronically exposed to contaminated estuarine sediments. Chemosphere 2014; 108:152-158. [PMID: 24534155 DOI: 10.1016/j.chemosphere.2014.01.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 09/30/2013] [Revised: 01/13/2014] [Accepted: 01/25/2014] [Indexed: 06/03/2023]
Abstract
Molecular responses to acute toxicant exposure can be effective biomarkers, however responses to chronic exposure are less well characterised. The aim of this study was to determine chronic molecular responses to environmental mixtures in a controlled laboratory setting, free from the additional variability encountered with environmental sampling of wild organisms. Flounder fish were exposed in mesocosms for seven months to a contaminated estuarine sediment made by mixing material from the Forth (high organics) and Tyne (high metals and tributyltin) estuaries (FT) or a reference sediment from the Ythan estuary (Y). Chemical analyses demonstrated that FT sediment contained significantly higher concentrations of key environmental pollutants (including polycyclic aromatic hydrocarbons (PAHs), chlorinated biphenyls and heavy metals) than Y sediment, but that chronically exposed flounder showed a lack of differential accumulation of contaminants, including heavy metals. Biliary 1-hydroxypyrene concentration and erythrocyte DNA damage increased in FT-exposed fish. Transcriptomic and (1)H NMR metabolomic analyses of liver tissues detected small but statistically significant alterations between fish exposed to different sediments. These highlighted perturbance of immune response and apoptotic pathways, but there was a lack of response from traditional biomarker genes. Gene-chemical association annotation enrichment analyses suggested that polycyclic aromatic hydrocarbons were a major class of toxicants affecting the molecular responses of the exposed fish. This demonstrated that molecular responses of sentinel organisms can be detected after chronic mixed toxicant exposure and that these can be informative of key components of the mixture.
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Affiliation(s)
- Tim D Williams
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
| | - Ian M Davies
- Marine Scotland Science, Marine Laboratory, 375 Victoria Rd., Aberdeen AB11 9DB, UK
| | - Huifeng Wu
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Amer M Diab
- Institute of Aquaculture, The University of Stirling, Stirling FK9 4LA, UK
| | - Lynda Webster
- Marine Scotland Science, Marine Laboratory, 375 Victoria Rd., Aberdeen AB11 9DB, UK
| | - Mark R Viant
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - J Kevin Chipman
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Michael J Leaver
- Institute of Aquaculture, The University of Stirling, Stirling FK9 4LA, UK
| | - Stephen G George
- Institute of Aquaculture, The University of Stirling, Stirling FK9 4LA, UK
| | - Colin F Moffat
- Marine Scotland Science, Marine Laboratory, 375 Victoria Rd., Aberdeen AB11 9DB, UK
| | - Craig D Robinson
- Marine Scotland Science, Marine Laboratory, 375 Victoria Rd., Aberdeen AB11 9DB, UK
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17
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Work TM, Aeby GS. Skin pathology in Hawaiian goldring surgeonfish, Ctenochaetus strigosus (Bennett). J Fish Dis 2014; 37:357-362. [PMID: 23617760 DOI: 10.1111/jfd.12112] [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: 01/06/2013] [Accepted: 03/16/2013] [Indexed: 06/02/2023]
Abstract
Twenty-eight goldring surgeonfish, Ctenochaetus strigosus (Bennett), manifesting skin lesions and originating from the north-western and main Hawaiian Islands were examined. Skin lesions were amorphous and ranged from simple dark or light discolouration to multicoloured tan to white sessile masses with an undulant surface. Skin lesions covered 2-66% of the fish surface, and there was no predilection for lesions affecting a particular part of the fish. Males appeared over-represented. Microscopy revealed the skin lesions to be hyperplasia, melanophoromas or iridophoromas. The presence of skin tumours in a relatively unspoiled area of Hawaii is intriguing. Explaining their distribution, cause and impact on survivorship of fish all merit further study because C. strigosus is an economically important fish in the region.
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Affiliation(s)
- T M Work
- US Geological Survey, National Wildlife Health Center, Honolulu Field Station, Honolulu, HI, USA; Hawaii Institute of Marine Biology, Kane'ohe, HI, USA
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18
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Agamy E. Sub chronic exposure to crude oil, dispersed oil and dispersant induces histopathological alterations in the gills of the juvenile rabbit fish (Siganus canaliculatus). Ecotoxicol Environ Saf 2013; 92:180-190. [PMID: 23602413 DOI: 10.1016/j.ecoenv.2013.03.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 03/24/2013] [Accepted: 03/25/2013] [Indexed: 06/02/2023]
Abstract
There is little existing information on the sub-lethal effects of experimental exposure of Arabian Gulf fish to oil pollution. This study investigated the potential sub-lethal effects of the water accommodated fraction (WAF) of light Arabian crude oil, dispersed oil and dispersant (Maxi Clean 2) on the gills of the juvenile rabbit fish (Siganus canaliculatus), observing several histopathological biomarkers at different time points and different doses. These laboratory exposures simulated a range of possible oil pollution events. Significant alterations in four health categories (circulatory, proliferative, degenerative and inflammatory) were identified and form the basis for understanding the short-term response of fish to oil. Evaluations of histopathological lesions in gill tissue were carried out following 3, 6, 9, 12, 15, 18 and 21 days of exposure. The main lesions observed and quantified were lamellar capillary aneurysms, vasodilatation of lamellae, hemorrhage, edema, lifting of lamellar and filamentary epithelium and epithelium necrosis, epithelial and chloride cell hypertrophy and hyperplasia, fusion of adjacent lamellae, epitheliocystis and inflammatory infiltration. Exposure of juvenile fish to WAF, dispersant oil and dispersant caused significant changes in the gill lesions and reaction patterns. Dispersed oil caused the most significant effect followed by WAF and then dispersant. The present study is one of the first which explores the relationship between oil pollution and epitheliocystis and reports that exposure to crude oil and dispersed oil increases the prevalence of epitheliocystis formation under controlled laboratory conditions.
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Affiliation(s)
- Esam Agamy
- Department of Basic Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates.
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Agamy E. Impact of laboratory exposure to light Arabian crude oil, dispersed oil and dispersant on the gills of the juvenile brown spotted grouper (Epinephelus chlorostigma): a histopathological study. Mar Environ Res 2013; 86:46-55. [PMID: 23535015 DOI: 10.1016/j.marenvres.2013.02.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 02/21/2013] [Accepted: 02/23/2013] [Indexed: 06/02/2023]
Abstract
The present study investigated the impact of subchronic exposure of the water accommodated fraction (WAF) of light Arabian crude oil, dispersed oil and dispersant on the gills of the juvenile brown spotted grouper (Epinephelus chlorostigma), observing several histopathological lesions at different time points and different concentrations. Significant alterations, compared to the control groups (p < 0.05), in four health categories (circulatory, proliferative, degenerative and inflammatory) were identified. Evaluations of histopathological lesions in gill tissue were carried out following 3, 6, 9, 12, 15, 18 and 21 days of exposure. The main lesions observed were circulatory (lamellar aneurysms, vasodilatation and hemorrhage), degenerative (edema, lifting of lamellar and filamentary epithelium and epithelium necrosis), proliferative (hypertrophy and hyperplasia of epithelial, mucous and chloride cells, fusion of adjacent lamellae), and inflammatory (lymphocytic infiltration). These results provide a tool for evaluating reclamation initiatives, such as the use of dispersants, and lead to better risk evaluations and environmental health in natural and reclaimed systems.
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Affiliation(s)
- Esam Agamy
- Department of Basic Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates.
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Le Dû-Lacoste M, Akcha F, Dévier MH, Morin B, Burgeot T, Budzinski H. Comparative study of different exposure routes on the biotransformation and genotoxicity of PAHs in the flatfish species, Scophthalmus maximus. Environ Sci Pollut Res Int 2013; 20:690-707. [PMID: 23247530 DOI: 10.1007/s11356-012-1388-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 11/29/2012] [Indexed: 06/01/2023]
Abstract
In this study, laboratory experiments were carried out in order to come to a better understanding of the fate of polycyclic aromatic hydrocarbons (PAHs) in the marine environment and especially on their bioaccumulation, biotransformation and genotoxic effects in fish. Juveniles of turbot (Scophthalmus maximus) were exposed to PAHs through different routes via (1) a mixture of dissolved PAHs, (2) a PAH-polluted sediment and (3) an oil fuel elutriate. Fish were exposed 4 days followed by a 6-day depuration period. In each experiment, PAH concentrations in the seawater of the tanks were analysed regularly by gas chromatography coupled with mass spectrometry. Muscle and liver samples were also analysed for parent PAH levels and PAH bioconcentration factors were calculated. Biotransformation was evaluated by measuring the levels of PAH metabolites in fish bile. Genotoxicity was assessed by the alkaline comet assay. Regardless of exposure route, the parent PAH concentrations in the liver and muscle showed a peak level 1 day after the beginning of the exposure, followed by a decrease up to the background level towards the end of the experiment, except for the exposure to dissolved PAHs for which levels were relatively low throughout the study. As a consequence, no bioaccumulation was observed in fish tissues at the end of the experiment. In contrast, regardless of exposure routes, a rapid production of biliary metabolites was observed throughout the whole exposure experiment. This was especially true for 1-hydroxypyrene, the major metabolite of pyrene. After 6 days of recovery in clean water, a significant decrease in the total metabolite concentrations occurred in bile. Fish exposed through either route displayed a significant increase in DNA strand breaks after 4 days of exposure, and significant correlations were observed between the level of biliary PAH metabolites and the level of DNA lesions in fish erythrocytes. Overall results indicate that exposure to either a mixture of dissolved PAHs, a PAH-contaminated sediment or a dispersed oil fuel elutriate leads to biotransformation and increase in DNA damage in fish. The quantification of PAH metabolites in bile and DNA damage in erythrocytes appear to be suitable for environmental monitoring of marine pollution either in the case of accidental oil spills or sediment contamination.
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Affiliation(s)
- Marie Le Dû-Lacoste
- Oceanic and Continental Environments and Paleoenvironments, EPOC, UMR 5805, CNRS, Laboratory of Physico- and Toxico-Chemistry of the Environment, LPTC, Université de Bordeaux, 351 cours de la Libération, 33405 Talence cedex, France
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Chen YH, Xia EQ, Xu XR, Li S, Ling WH, Wu S, Deng GF, Zou ZF, Zhou J, Li HB. Evaluation of benzo[a]pyrene in food from China by high-performance liquid chromatography-fluorescence detection. Int J Environ Res Public Health 2012; 9:4159-69. [PMID: 23202838 DOI: 10.3390/ijerph9114159] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The occurrence and levels of benzo[a]pyrene in various heat-treated foods from China were evaluated by high-performance liquid chromatography-fluorescence detection. In a total of 119 samples, 105 were found to contain benzo[a]pyrene at levels of 0.03 to 19.75 µg/kg. The benzo[a]pyrene contents in 12 animal source foods were higher than the Chinese maximum permissible level in food (5 µg/kg) and the highest level was 19.75 µg/kg, nearly four times the maximum permissible level. The results revealed a widespread carinogenic public health risk from benzo[a]pyrene in heat-treated foods. The highest benzo[a]pyrene levels were found in animal source samples such as charcoal-grilled and smoked meats, especially pork, beef and sausage, while trace levels of benzo[a]pyrene were present in grain food. Charcoal-grilled vegetables were found to also contain certain levels of benzo[a]pyrene. This study provided new information on benzo[a]pyrene content of a variety of heat-treated foods from China.
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Ruiz P, Ortiz-Zarragoitia M, Orbea A, Theron M, Le Floch S, Cajaraville MP. Responses of conventional and molecular biomarkers in turbot Scophthalmus maximus exposed to heavy fuel oil no. 6 and styrene. Aquat Toxicol 2012; 116-117:116-128. [PMID: 22483509 DOI: 10.1016/j.aquatox.2012.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 01/17/2012] [Accepted: 02/05/2012] [Indexed: 05/31/2023]
Abstract
Several accidental spills in European coastal areas have resulted in the release of different toxic compounds into the marine environment, such as heavy fuel oil type no. 6 in the "Erika" and "Prestige" oil spills and the highly toxic styrene after the loss of the "Ievoli Sun". There is a clear need to develop tools that might allow assessing the biological impact of these accidental spills on aquatic organisms. The aim of the present study was to determine the short-term effects and recovery after exposure of juvenile fish (Scophthalmus maximus) to heavy fuel oil no. 6 and styrene by using a battery of molecular, cell and tissue level biomarkers. Turbots were exposed to styrene for 7 days and to the diluted soluble fraction of the oil (10%) for 14 days, and then allowed to recover in clean seawater for the same time periods. cyp1a1 transcript was overexpressed in turbots after 3 and 14 days of exposure to heavy fuel oil, whereas ahr transcription was not modulated after heavy fuel oil and styrene exposure. pparα transcription level was significantly up-regulated after 3 days of treatment with styrene. Liver activity of peroxisomal acyl-CoA oxidase (AOX) was significantly induced after 14 days of oil exposure, but it was not affected by styrene. Hepatocyte lysosomal membrane stability (LMS) was significantly reduced after exposure to both treatments, indicating that the tested compounds significantly impaired fish health. Both AOX and LMS values returned to control levels after the recovery period. No differences in gamete development were observed between fuel- or styrene- exposed fish and control fish, and vitellogenin plasma levels were low, suggesting no xenoestrogenic effects of fuel oil or styrene. While styrene did not cause any increase in the prevalence of liver histopathological alterations, prevalence of extensive cell vacuolization increased after exposure to heavy fuel oil for 14 days. In conclusion, the suite of selected biomarkers proved to be useful to determine the early impact of and recovery from exposure to tested compounds in turbot.
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Affiliation(s)
- Pamela Ruiz
- Laboratory of Cell Biology and Histology, Faculty of Science and Technology, University of the Basque Country, Sarriena z/g, E- 48940 Leioa, Basque Country, Spain
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Costa J, Reis-Henriques MA, Castro LFC, Ferreira M. Gene expression analysis of ABC efflux transporters, CYP1A and GSTα in Nile tilapia after exposure to benzo(a)pyrene. Comp Biochem Physiol C Toxicol Pharmacol 2012; 155:469-82. [PMID: 22227637 DOI: 10.1016/j.cbpc.2011.12.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 12/12/2011] [Accepted: 12/13/2011] [Indexed: 01/06/2023]
Abstract
The aim of this study was to evaluate the response of ABC transporters, CYP1A and class alpha (α) GST genes, upon water and dietary exposures to benzo(a)pyrene (BaP) in Oreochromis niloticus. Partial mRNA sequences of ABC transporters (ABCB1b, ABCB11, ABCC1, ABCC2 and ABCG2) were identified, and their tissue distribution patterns evaluated in liver, gill and intestine, showing similarities with other fish and mammals. After 14 days of water exposure to BaP, ABC transporters mRNA expression was up-regulated, namely ABCC2 in gill (up to 16-fold) and ABCG2 in liver (up to 2-fold) and proximal intestine (up to 7-fold). CYP1A mRNA expression was up-regulated in water exposed animals, with maximum fold inductions of 5, 35 and 155, respectively in liver, gill and proximal intestine. After dietary exposure, intestinal CYP1A mRNA showed a 13-fold increase in exposed animals. No significant changes were seen in ABCB1b, ABCC1 and GSTα mRNA expression after both routes of exposure to BaP. In conclusion, this study has shown that transcriptional expression of some ABC transporters and CYP1A respond to the presence of BaP, indicating a possible involvement and cooperation in the detoxification process in Nile tilapia.
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Affiliation(s)
- Joana Costa
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, Laboratory of Environmental Toxicology, University of Porto, Rua dos Bragas, 289, 4050-123, Porto, Portugal.
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Almeida JR, Gravato C, Guilhermino L. Challenges in assessing the toxic effects of polycyclic aromatic hydrocarbons to marine organisms: a case study on the acute toxicity of pyrene to the European seabass (Dicentrarchus labrax L.). Chemosphere 2012; 86:926-937. [PMID: 22154001 DOI: 10.1016/j.chemosphere.2011.10.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 10/26/2011] [Accepted: 10/31/2011] [Indexed: 05/31/2023]
Abstract
The acute toxicity (96 h) of pyrene (PY) to European seabass (Dicentrachus labrax) juveniles assessed in a semi-static bioassay (SSB) with medium renewal at each 12h, and in a static bioassay (SB) without medium renewal was compared in laboratorial conditions (water PY concentrations: 0.07-10 mg L(-1)). Main findings in the SSB that assessed mainly the toxicity of PY and its metabolites were: increased levels of bile PY metabolites in good agreement with the profile of lipid peroxidation levels (LPO) in exposed fish relating PY exposure and oxidative damage; increased levels of PY-type compounds in the brain indicating their ability to cross the blood-brain barrier; increased levels of these substances in liver and muscle which are edible tissues for humans thus raising concern on potential adverse effects on consumers of fish from PY contaminated areas; a significant inhibition of glutathione S-transferase activity suggesting its involvement in PY detoxication as toxicant scavenger; finally, an almost complete impairment of the swimming velocity at all the PY concentrations linking sub-individual to higher population level effects. In the SB, where the overall toxicity of PY, its metabolites and environmental degradation products was evaluated, 19% and 79% of PY decay in test media was found at 12 and 96 h, respectively. In general, the effects were similar to those of SSB but with significant effects being induced at higher PY concentrations indicating that the parental compound is more toxic than its environmental degradation products. The other main differences relatively to the SSB were: increased levels of PY-type substances in the liver suggesting more accumulation in this organ. Therefore, these findings highlight the need of carefully considering experimental design options when assessing the toxicity of readily degradable substances to marine fish, and stress the importance of taking into consideration the toxicity of environmental degradation products in addition to toxic effects of the parental substance and its metabolites for marine ecological risk assessment.
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Affiliation(s)
- Joana R Almeida
- ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Departamento de Estudos de Populações, Laboratório de Ecotoxicologia, Largo do Prof. Abel Salazar 2, 4099-003 Porto, Portugal.
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Nagel F, Kammann U, Wagner C, Hanel R. Metabolites of polycyclic aromatic hydrocarbons (PAHs) in bile as biomarkers of pollution in European eel (Anguilla anguilla) from German rivers. Arch Environ Contam Toxicol 2012; 62:254-263. [PMID: 21706228 DOI: 10.1007/s00244-011-9693-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Accepted: 06/06/2011] [Indexed: 05/31/2023]
Abstract
In the light of the alarming decline of the European eel (Anguilla anguilla L.) population, there is an urgent need to define ecological indicators for eel habitat quality. Due to an increasing shortage of glass eels available for local stock enhancement, the decision of whether restocking is a valuable management tool to increase high-quality silver eel escapement to the sea needs to be evaluated. Organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), are among the major threats to fish in their habitat. Therefore, the aim of the investigation presented here was to examine metabolites of PAHs in eel bile as one possible marker for habitat quality. In total, 170 yellow eels were collected in the rivers Rhine, Ems, Weser, Elbe, Havel, Schlei, Eider, Trave, Warnow, Peene, Uecker, and Oder in 2009. PAH metabolites in eel bile were analyzed using high-performance liquid chromatography with fluorescence detection. Metabolites of pyrene and phenanthrene were investigated. Concentrations of PAH metabolites in eel bile varied significantly between several rivers, with the highest mean concentrations of 1-hydroxypyrene and 1-hydroxyphenanthrene in eel bile from the river Trave (2421 and 632 ng/ml). Moreover, huge differences in the ratio of 1-hydroxypyrene to 1-hydroxyphenanthrene, with the highest mean value in eel bile from the river Ems (7.43) and the lowest mean value in eel bile from the river Uecker (0.70), indicate different sources of PAH contamination. A comparative analysis of PAH-metabolite contamination of eels in different river systems is seen as a first step toward a classification of freshwater habitats for restocking purposes.
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Affiliation(s)
- F Nagel
- Johann Heinrich von Thünen-Institut, Federal Research Institute for Rural Areas, Forestry and Fisheries, Institute of Fisheries Ecology, Palmaille 9, 22767 Hamburg, Germany
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Costa J, Ferreira M, Rey-Salgueiro L, Reis-Henriques MA. Comparision of the waterborne and dietary routes of exposure on the effects of Benzo(a)pyrene on biotransformation pathways in Nile tilapia (Oreochromis niloticus). Chemosphere 2011; 84:1452-1460. [PMID: 21561639 DOI: 10.1016/j.chemosphere.2011.04.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 04/06/2011] [Accepted: 04/17/2011] [Indexed: 05/30/2023]
Abstract
BaP is one of the most studied PAH, due to its ubiquitous presence in aquatic environments and toxicity to aquatic organisms. The main goal of this study was to assess BaP effects in Nile Tilapia after waterborne and dietary exposures, through the evaluation of EROD and GST activities in liver, gills and intestine, and BaP metabolites in bile; and also to evaluate the usefulness of these commonly used biomarkers after two different routes of exposure. Waterborne exposure to BaP led to a significant induction of EROD in all tissues analyzed (644%, 1640% and 2880% in relation to solvent in liver, gill and intestine respectively) while in dietary exposures EROD was induced only in intestine (3143%) after exposure to high BaP concentrations. GST activities with CDNB were slightly induced in liver (40%) and in gill (66%) after water exposure to BaP, and in intestine after dietary exposure to low BaP concentrations (182%). BaP metabolites in bile increased after both exposure routes, and were highly correlated with EROD activity after water exposure. In summary, this work has shown that the effects of BaP on biotransformation pathways depend on the route of exposure. Moreover, barrier tissues like gills and intestine also have an important role in the first-pass metabolism of BaP, reducing the amount of parent compound that reaches the liver to be metabolized. For that reason, EROD activity as a biomarker of exposure should also be applied in extrahepatic organs, like gills and intestine, in monitoring studies. Biliary BaP type metabolites are good reflectors of contamination levels under both exposure routes, while GST activity with CDNB as substrate, as a phase II enzyme, does not seem a reliable biomarker of exposure to BaP regardless the route of exposure.
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Affiliation(s)
- Joana Costa
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Laboratory of Environmental Toxicology, University of Porto, Rua dos Bragas, 289, 4050-123, Porto, Portugal.
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Pal S, Kokushi E, Cheikyula JO, Koyama J, Uno S. Histopathological effects and EROD induction in common carp exposed to dietary heavy oil. Ecotoxicol Environ Saf 2011; 74:307-314. [PMID: 21272936 DOI: 10.1016/j.ecoenv.2011.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Revised: 10/19/2010] [Accepted: 01/10/2011] [Indexed: 05/30/2023]
Abstract
Common carp, Cyprinus carpio, was exposed to 1% and 5% dietary heavy oil for 2 weeks. Higher polyaromatic hydrocarbons (PAHs) accumulation induced higher hepatic EROD activity in exposure groups compared with the control group. Significant histological alternations were observed in the liver such as nuclear and cellular hypertrophy, accumulation of eosinophilic granules in cytoplasm, nuclear degeneration and fibrillar inclusion in cytoplasm. Severe damage of the kidney was indicated by nuclear and cellular degeneration, and ultimately necrosis in the tubular epithelium cells. In addition, dilated glomerulus with hemorrhage was found in the renal capsule. The mean assessment value (MAV) and degree of tissue changes (DTC), as semi-quantitative analyses, were significantly increased with concentration and duration of exposure. Likewise, frequencies of pathological lesions in both liver and kidney were also increased with concentration and duration of exposure.
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Affiliation(s)
- Sandipan Pal
- Education and Research Center for Marine Resources and Environment, Faculty of Fisheries, Kagoshima University, Shimoarata 4-50-20, Kagoshima City 890-0056, Japan
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Viganò L, Benfenati E, Bottero S, Cevasco A, Monteverde M, Mandich A. Endocrine modulation, inhibition of ovarian development and hepatic alterations in rainbow trout exposed to polluted river water. Environ Pollut 2010; 158:3675-3683. [PMID: 20864230 DOI: 10.1016/j.envpol.2010.07.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Revised: 07/20/2010] [Accepted: 07/22/2010] [Indexed: 05/29/2023]
Abstract
Under laboratory conditions, female rainbow trout were exposed to graded concentrations of water from the River Lambro, a polluted tributary of the River Po, and to the effluent of a large wastewater treatment plant which flows into the River Lambro. In field exposures, trout were held in cages in the River Po upstream and downstream from the confluence of the River Lambro. After 10-day (laboratory) and 30-day (laboratory and field) exposures, trout were examined for several chemical, biochemical and histological endpoints. The results indicated that exposure to complex mixtures of chemicals, including estrogen receptor agonists, aryl-hydrocarbon receptor agonists, and probably antiandrogens, had occurred. Exposure altered the plasma levels of 17β-estradiol and testosterone, and some treatments also enhanced the activity of hepatic ethoxyresorufin O-deethylase. Gonadal histology showed varying levels of degenerative processes characterised by oocyte atresia, haemorrhages, melano-macrophage centres (MMCs), and oogonia proliferation. Liver histology showed less severe effects.
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Affiliation(s)
- Luigi Viganò
- Water Research Institute, National Council of Research, Brugherio, Milan, Italy.
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29
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Kane Driscoll SB, McArdle ME, Menzie CA, Reiss M, Steevens JA. A framework for using dose as a metric to assess toxicity of fish to PAHs. Ecotoxicol Environ Saf 2010; 73:486-90. [PMID: 20022112 DOI: 10.1016/j.ecoenv.2009.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2009] [Revised: 11/16/2009] [Accepted: 11/17/2009] [Indexed: 05/15/2023]
Abstract
The effects of PAHs on fish have been described in the literature, but the ability to assess risk to juvenile and adult fish from exposure to PAHs the field is currently hindered by the lack of a predictive dose-response exposure model. The goal of this paper is to present a framework that can be used to convert concentrations of PAHs in environmental media (e.g., water, food, and sediment) to a dose metric that is predictive of adverse effects. Examples of toxicity studies that can be considered within the framework are presented. Additional toxicity studies are needed to establish the potency and range of toxic responses to mixtures of PAHs that fish encounter in the environment.
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Leaver MJ, Diab A, Boukouvala E, Williams TD, Chipman JK, Moffat CF, Robinson CD, George SG. Hepatic gene expression in flounder chronically exposed to multiply polluted estuarine sediment: Absence of classical exposure 'biomarker' signals and induction of inflammatory, innate immune and apoptotic pathways. Aquat Toxicol 2010; 96:234-245. [PMID: 19945177 DOI: 10.1016/j.aquatox.2009.10.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2009] [Revised: 10/27/2009] [Accepted: 10/31/2009] [Indexed: 05/28/2023]
Abstract
The effects of chronic long-term exposure to multiply polluted environments on fish are not well understood, but environmental surveys suggest that such exposure may cause a variety of pathologies, including cancers. Transcriptomic profiling has recently been used to assess gene expression in European flounder (Platichthys flesus) living in several polluted and clean estuaries. However, the gene expression changes detected were not unequivocally elicited by pollution, most likely due to the confounding effects of natural estuarine ecosystem variables. In this study flounder from an uncontaminated estuary were held on clean or polluted sediments in mesocosms, allowing control of variables such as salinity, temperature, and diet. After 7 months flounder were removed from each mesocosm and hepatocytes prepared from fish exposed to clean or polluted sediments. The hepatocytes were treated with benzo(a)pyrene (BAP), estradiol (E2), copper, a mixture of these three, or with the vehicle DMSO. A flounder cDNA microarray was then used to measure hepatocyte transcript abundance after each treatment. The results show that long-term chronic exposure to a multiply polluted sediment causes increases in the expression of mRNAs coding for proteins of the endogenous apoptotic programme, of innate immunity and inflammation. Contrary to expectation, the expression of mRNAs which are commonly used as biomarkers of environmental exposure to particular contaminants were not changed, or were changed contrary to expectation. However, acute treatment of hepatocytes from flounder from both clean and polluted sediments with BAP or E2 caused the expected changes in the expression of these biomarkers. Thus transcriptomic analysis of flounder exposed long-term to chronic pollution causes a different pattern of gene expression than in fish acutely treated with single chemicals, and reveals novel potential biomarkers of environmental contaminant exposure. These novel biomarkers include Diablo, a gene involved in apoptotic pathways and highly differentially regulated by both chronic and acute exposure to multiple pollutants.
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31
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Horng CY, Lin HC, Lee W. A reproductive toxicology study of phenanthrene in medaka (Oryzias latipes). Arch Environ Contam Toxicol 2010; 58:131-139. [PMID: 19499161 DOI: 10.1007/s00244-009-9335-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2009] [Accepted: 04/28/2009] [Indexed: 05/27/2023]
Abstract
Environmental contaminants, such as polycyclic aromatic hydrocarbons (PAHs), can disrupt the endocrine system and affect reproductive function of humans and wildlife. In this study, we exposed Japanese medaka (Oryzias latipes) to water-borne or food-spiked phenanthrene, an ubiquitous PAH, and investigated the chronic effects of the chemical on medaka reproduction. The results showed that phenanthrene significantly prolonged the time to hatch for embryos. Other parameters such as fecundity and fertility, organ-somatic ratios, hepatic vitellogenin production, and the histology of testes and ovaries were not different between the control and phenanthrene-treated groups. This suggests that the time to hatch in embryos might be a more sensitive biomarker for environmental contaminants.
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Affiliation(s)
- Ching-Yi Horng
- Department of Occupational Safety and Health, Chang Jung Christian University, Tainan, Taiwan
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Aarab N, Pampanin DM, Naevdal A, Oysaed KB, Gastaldi L, Bechmann RK. Histopathology alterations and histochemistry measurements in mussel, Mytilus edulis collected offshore from an aluminium smelter industry (Norway). Mar Pollut Bull 2008; 57:569-574. [PMID: 18359046 DOI: 10.1016/j.marpolbul.2008.01.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2007] [Revised: 01/16/2008] [Accepted: 01/29/2008] [Indexed: 05/26/2023]
Abstract
Histopathological characteristics of specific organs express condition, and represent time-integrated impacts on the organism stemming from alterations at lower levels of biological organisation. As integrative parameters, histochemical investigations have proved to be sensitive tools to detect effects of chemical compounds. The objective of this study was to determine changes in the tissues of mussels collected at a PAH contaminated site compared to a reference site using histopathological and histochemical parameters: lipofuscin (LF) accumulation in mussel digestive gland, and lysosomal membrane stability (LMS), and using additional information provided by body burden analysis to compare the sensitivity of these parameters. The histochemical measurements for both LF and LMS gave a clear indication of a high level of stress in animals from the PAH contaminated site. This LF accumulation in lysosomes is the result of peroxidation of autophagocytosed proteins associated with protein aggregates and oxidatively damaged organelles. These measurements were able to detect the effects of PAHs, and showed a strong relationship with the body burden results.
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Affiliation(s)
- N Aarab
- International Research Institute of Stavanger (IRIS) - Biomiljø, Mekjarvik 12 N-4070 Randaberg, Norway.
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Srogi K. Monitoring of environmental exposure to polycyclic aromatic hydrocarbons: a review. Environ Chem Lett 2007; 5:169-195. [PMID: 29033701 PMCID: PMC5614912 DOI: 10.1007/s10311-007-0095-0] [Citation(s) in RCA: 504] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2007] [Accepted: 01/26/2007] [Indexed: 05/17/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a large group of organic compounds with two or more fused aromatic rings. They have a relatively low solubility in water, but are highly lipophilic. Most of the PAHs with low vapour pressure in the air are adsorbed on particles. When dissolved in water or adsorbed on particulate matter, PAHs can undergo photodecomposition when exposed to ultraviolet light from solar radiation. In the atmosphere, PAHs can react with pollutants such as ozone, nitrogen oxides and sulfur dioxide, yielding diones, nitro- and dinitro-PAHs, and sulfonic acids, respectively. PAHs may also be degraded by some microorganisms in the soil. PAHs are widespread environmental contaminants resulting from incomplete combustion of organic materials. The occurrence is largely a result of anthropogenic emissions such as fossil fuel-burning, motor vehicle, waste incinerator, oil refining, coke and asphalt production, and aluminum production, etc. PAHs have received increased attention in recent years in air pollution studies because some of these compounds are highly carcinogenic or mutagenic. Eight PAHs (Car-PAHs) typically considered as possible carcinogens are: benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene (B(a)P), dibenzo(a,h)anthracene, indeno(1,2,3-cd)pyrene and benzo(g,h,i)perylene. In particular, benzo(a)pyrene has been identified as being highly carcinogenic. The US Environmental Protection Agency (EPA) has promulgated 16 unsubstituted PAHs (EPA-PAH) as priority pollutants. Thus, exposure assessments of PAHs in the developing world are important. The scope of this review will be to give an overview of PAH concentrations in various environmental samples and to discuss the advantages and limitations of applying these parameters in the assessment of environmental risks in ecosystems and human health. As it well known, there is an increasing trend to use the behavior of pollutants (i.e. bioaccumulation) as well as pollution-induced biological and biochemical effects on human organisms to evaluate or predict the impact of chemicals on ecosystems. Emphasis in this review will, therefore, be placed on the use of bioaccumulation and biomarker responses in air, soil, water and food, as monitoring tools for the assessment of the risks and hazards of PAH concentrations for the ecosystem, as well as on its limitations.
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Affiliation(s)
- K. Srogi
- Institute for Chemical Processing of Coal, Zamkowa 1, 41-803 Zabrze, Poland
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Morales-Caselles C, Jiménez-Tenorio N, Riba I, Sarasquete C, DelValls TA. Kinetic of biomarker responses in juveniles of the fish Sparus aurata exposed to contaminated sediments. Environ Monit Assess 2007; 131:211-20. [PMID: 17171271 DOI: 10.1007/s10661-006-9469-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2006] [Accepted: 08/22/2006] [Indexed: 05/13/2023]
Abstract
Sediments in the National Park of the Atlantic Islands (Galicia, Spain) were affected by the spill of the tanker Prestige (November, 2002) and still present high levels of Polycyclic aromatic hydrocarbons. The adverse effects associated with the contaminants in sediments were tested using a chronic bioassay, exposing juveniles of the fish Sparus aurata (seabream). A toxicokinetic approach is proposed to evaluate sediment quality by linking chemical and ecotoxicological data along the time. Sediment samples were physicochemically characterized and the concentration of contaminants (Polycyclic aromatic hydrocarbons - PAHs - and metals) was measured. Fishes were exposed to contaminated sediments, and samples from different tissues were collected every 15 days throughout the 60 days that lasted the experiment. A biomarker of exposure (ethoxyresorufin O-deethylase activity - EROD activity) and a biomarker of effect (histopathology) were analyzed during the exposure period. Results show a relationship between the biomarkers and the concentrations in sediments of polycyclic aromatic hydrocarbons-PAHs. Besides, the toxicokinetic approach links biomarkers response providing information about the relationship between the detoxification process and the damages observed in the different tissues. The frequency of the histological damage is highest when the EROD activity slightly decreases in accordance with the mechanism of detoxification of this enzymatic system against PAHs and other organic contaminants.
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Affiliation(s)
- Carmen Morales-Caselles
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Ciencias Marinas de Andalucía (ICMAN), Polígono Río San Pedro s/n, 11510, Puerto Real, Cádiz, Spain
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Goanvec C, Theron M, Poirier E, Le Floch S, Laroche J, Nonnotte L, Nonnotte G. Evaluation of chromosomal damage by flow cytometry in turbot (Scophthalmus maximus L.) exposed to fuel oil. Biomarkers 2005; 9:435-46. [PMID: 15849064 DOI: 10.1080/13547500400027001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
Flatfishes, turbots (Scophthalmus maximus), were injected intraperitoneally with two doses of fuel oil number 2. Biliary metabolites were evaluated by fixed fluorescence to verify the efficiency of intoxication. Ethoxyresorufin-O-deethylase (EROD) activity was compared with chromosomal damage measured by flow cytometry. The analysis of biliary metabolites showed a good dose-response relation and constitutes a clear reference for the subsequent measurements. Comparing flow cytometry and EROD results, a shorter delay of response for EROD activity was obtained, but chromosomal damage was significant only after one week. The persistence of the EROD response was shorter, while the genotoxic signal still persisted after one month. The measurement of chromosomal damage allowed a good differentiation between the two tested doses. In the case of EROD activity, the results were less clear. The results suggest that within a few weeks after exposure to fuel oil number 2, the measurements of chromosomal damage by flow cytometry can be used to detect a dose-dependent genotoxic response in fish.
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Affiliation(s)
- Christelle Goanvec
- Laboratoire de Biologie et Physiologie Cellulaires, UFR Sciences et Techniques, 6 Avenue le Gorgeu, CS 93837, F-29238 Brest Cedex 3, France
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Rodriguez-Cea A, Del Rosario Fernandez De La Campa M, Sanz-Medel A. Brown trout as a sentinel organism for organic pollution in the field using catalytic and immunochemical assays of cytochrome P-450 1A. ACTA ACUST UNITED AC 2004; 6:368-73. [PMID: 15054548 DOI: 10.1039/b315886a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The measurement in some living organisms of adequate biomarkers (e.g. cytochrome P-450) to assess the organic pollution in freshwater ecosystems is well established. However, the sensitivity of this approach depends on the analytical measurement method employed and on the chosen living organism for the biomonitoring. Three analytical methods were compared for measuring cytochrome P-450 1A levels in wild brown trout (Salmo trutta): a catalytic one, based on measurement of the ethoxyresorufin-O-deethylase (EROD) activity, and two immunochemical methods, namely, enzyme-linked immunosorbent assay (ELISA) and western blotting. The P-450 1A levels in those animals from a river located in an industrialized area (Trubia River, Northern Spain) and also from individuals living in a low-contamination reference area have been studied. Significant differences (Mann-Whitney U-test, P < 0.01) between rivers were found (ELISA and EROD assays), with the values for Trubia river being similar to those observed in laboratory experiments with well known P-450 1A inducers. However, no significant differences were observed in terms of sex and age. Western blot analysis confirmed the presence of a single band of 56 kDa (corresponding with P-450 1 A protein) in microsomes of fish caught in the Trubia river. On the other hand, and associated with the chemical analysis of PAHs in the waters of both rivers by SPME-GC-MS, high levels of naphthalene (P-450 1A inducer) in the contaminated river were found. In brief, a wide difference between basal levels and P-450 1A induction levels could be detected in trout living in natural field conditions using both EROD activity assay and immunochemical methods. Therefore, brown trout could constitute a good sentinel organism to biomonitor the exposure to PAHs in rivers using P-450 1A measurements.
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Affiliation(s)
- Andres Rodriguez-Cea
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, Universidad de Oviedo, Julian Claveria 8, 33006, Oviedo, Spain
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