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MacAulay S, Masud N, Cable J. Analysis of bamboo fibres and their associated dye on a freshwater fish host-parasite system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:51025-51036. [PMID: 39138730 PMCID: PMC11364605 DOI: 10.1007/s11356-024-34626-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 08/01/2024] [Indexed: 08/15/2024]
Abstract
With the growth of the fashion and textile industries into the twenty-first century, associated pollution has become pervasive. Fibre-based microplastics are the most common types of plastics recovered from aquatic ecosystems encouraging the move towards organic fibre usage. Often marketed as biodegradable and 'environmentally friendly', organic textile fibres are seen as less harmful, but their impacts are understudied. Here, we assess the health effects of reconstituted bamboo-viscose fibres, processed bamboo-elastane fibres (both at 700 fibres/L) and their associated dye (Reactive Black-5, at 1 mg/L) on fish, with an emphasis on disease resistance utilising an established host-parasite system: the freshwater guppy host (Poecilia reticulata) and Gyrodactylus turnbulli (monogenean ectoparasite). Following 3 weeks exposure to the bamboo fibres and associated dye, half the experimental fish were infected with G. turnbulli, after which individual parasite trajectories were monitored for a further 17 days. Overall, exposures to reconstituted bamboo-viscose fibres, processed bamboo-elastane fibres or dye were not associated with any change in host mortality nor any significant changes in parasite infection burdens. When analysing the routine metabolic rate (RMR) of fish, uninfected fish had, on average, significantly impacted RMR when exposed to processed bamboo-elastane (increased RMR) and reconstituted bamboo-viscose (decreased RMR). Hosts exposed to reconstituted bamboo-viscose and the associated dye treatment showed significant changes in RMR pre- and post-infection. This study bolsters the growing and needed assessment of the potential environmental impacts of alternative non-plastic fibres; nevertheless, more research is needed in this field to prevent potential greenwashing.
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Affiliation(s)
- Scott MacAulay
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK.
| | - Numair Masud
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
| | - Jo Cable
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
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2
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Bertolatus DW, Barber LB, Martyniuk CJ, Zhen H, Collette TW, Ekman DR, Jastrow A, Rapp JL, Vajda AM. Multi-omic responses of fish exposed to complex chemical mixtures in the Shenandoah River watershed. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 902:165975. [PMID: 37536598 PMCID: PMC10592118 DOI: 10.1016/j.scitotenv.2023.165975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/24/2023] [Accepted: 07/30/2023] [Indexed: 08/05/2023]
Abstract
To evaluate relationships between different anthropogenic impacts, contaminant occurrence, and fish health, we conducted in situ fish exposures across the Shenandoah River watershed at five sites with different land use. Exposure water was analyzed for over 500 chemical constituents, and organismal, metabolomic, and transcriptomic endpoints were measured in fathead minnows. Adverse reproductive outcomes were observed in fish exposed in the upper watershed at both wastewater treatment plant (WWTP) effluent- and agriculture-impacted sites, including decreased gonadosomatic index and altered secondary sex characteristics. This was accompanied with increased mortality at the site most impacted by agricultural activities. Molecular biomarkers of estrogen exposure were unchanged and consistent with low or non-detectable concentrations of common estrogens, indicating that alternative mechanisms were involved in organismal adverse outcomes. Hepatic metabolomic and transcriptomic profiles were altered in a site-specific manner, consistent with variation in land use and contaminant profiles. Integrated biomarker response data were useful for evaluating mechanistic linkages between contaminants and adverse outcomes, suggesting that reproductive endocrine disruption, altered lipid processes, and immunosuppression may have been involved in these organismal impacts. This study demonstrated linkages between human-impact, contaminant occurrence, and exposure effects in the Shenandoah River watershed and showed increased risk of adverse outcomes in fathead minnows exposed to complex mixtures at sites impacted by municipal wastewater discharges and agricultural practices.
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Affiliation(s)
- David W Bertolatus
- Adams State University, School of Science, Technology, Engineering, and Math, 208 Edgemont Blvd, Alamosa, CO 81101, USA.
| | - Larry B Barber
- U.S. Geological Survey, 3215 Marine Street, Boulder, CO 80303, USA.
| | - Christopher J Martyniuk
- Center for Environmental and Human Toxicology, Department of Physiological Sciences, University of Florida Genetics Institute, College of Veterinary Medicine, Gainesville, FL 32610, USA.
| | - Huajun Zhen
- U.S. Environmental Protection Agency, Center for Environmental Measurement and Modeling, Athens, GA 30605, USA
| | - Timothy W Collette
- U.S. Environmental Protection Agency, Center for Environmental Measurement and Modeling, Athens, GA 30605, USA.
| | - Drew R Ekman
- U.S. Environmental Protection Agency, Center for Environmental Measurement and Modeling, Athens, GA 30605, USA.
| | - Aaron Jastrow
- U.S. Environmental Protection Agency, Region 5 Laboratory Services and Applied Science Division, Chicago, IL, 60605 USA.
| | - Jennifer L Rapp
- U.S. Geological Survey, Integrated Information Dissemination Division, Decision Support Branch, 1730 East Parham Road, Richmond, VA 23228, USA.
| | - Alan M Vajda
- University of Colorado Denver, Department of Integrative Biology, CB 171, Denver, CO 80217, USA.
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3
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Husain Khan A, Abdul Aziz H, Palaniandy P, Naushad M, Cevik E, Zahmatkesh S. Pharmaceutical residues in the ecosystem: Antibiotic resistance, health impacts, and removal techniques. CHEMOSPHERE 2023; 339:139647. [PMID: 37516325 DOI: 10.1016/j.chemosphere.2023.139647] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/14/2023] [Accepted: 07/23/2023] [Indexed: 07/31/2023]
Abstract
Hospital wastewater has emerged as a major category of environmental pollutants over the past two decades, but its prevalence in freshwater is less well documented than other types of contaminants. Due to compound complexity and improper operations, conventional treatment is unable to remove pharmaceuticals from hospital wastewater. Advanced treatment technologies may eliminate pharmaceuticals, but there are still concerns about cost and energy use. There should be a legal and regulatory framework in place to control the flow of hospital wastewater. Here, we review the latest scientific knowledge regarding effective pharmaceutical cleanup strategies and treatment procedures to achieve that goal. Successful treatment techniques are also highlighted, such as pre-treatment or on-site facilities that control hospital wastewater where it is used in hospitals. Due to the prioritization, the regulatory agencies will be able to assess and monitor the concentration of pharmaceutical residues in groundwater, surface water, and drinking water. Based on the data obtained, the conventional WWTPs remove 10-60% of pharmaceutical residues. However, most PhACs are eliminated during the secondary or advanced therapy stages, and an overall elimination rate higher than 90% can be achieved. This review also highlights and compares the suitability of currently used treatment technologies and identifies the merits and demerits of each technology to upgrade the system to tackle future challenges. For this reason, pharmaceutical compound rankings in regulatory agencies should be the subject of prospective studies.
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Affiliation(s)
- Afzal Husain Khan
- School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Pulau Pinang, Malaysia.
| | - Hamidi Abdul Aziz
- School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Pulau Pinang, Malaysia; Solid Waste Management Cluster, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia.
| | - Puganeshwary Palaniandy
- School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Pulau Pinang, Malaysia
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Emre Cevik
- Bioenergy Research Unit, Department of Biophysics, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, 1982, PO Box:1982, Dammam, 31441, Saudi Arabia
| | - Sasan Zahmatkesh
- Tecnologico de Monterrey, Escuela de Ingenieríay Ciencias, Puebla, Mexico.
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4
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See MJ, Bencic DC, Flick RW, Lazorchak J, Biales AD. Characterization of vitellogenin concentration in male fathead minnow mucus compared to plasma, and liver mRNA. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 236:113428. [PMID: 35366562 PMCID: PMC9109421 DOI: 10.1016/j.ecoenv.2022.113428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/12/2022] [Accepted: 03/16/2022] [Indexed: 05/03/2023]
Abstract
The objective of this study was to characterize vitellogenin (VTG) protein in male fathead minnow (Pimephales promelas) mucus compared with more conventional measures in plasma and mRNA isolated from liver. To assess the intensity and duration of changes in mucus VTG concentrations, male fathead minnows were exposed to 17α-ethinylestradiol (EE2) for 7 days with a subsequent depuration period of 14 days. The experiment was conducted in a flow-through system to maintain a consistent concentration of EE2 at a nominal EC50 concentration of 2.5 ng/L and high concentration of 10 ng/L as a positive control. Mucus, plasma and liver were sampled at regular intervals throughout the study. Relative abundance of vtg mRNA increased after 2 days of exposure and returned to control levels after 4 days of depuration. VTG protein concentration displayed similar induction kinetics in both mucus and plasma, however, it was found to be significantly increased after 2 days of exposure using the mucus-based assays and 7 days with the plasma-based assay. Significantly elevated levels of VTG were detected by both assays throughout the 14-day depuration period. The elimination of the laborious plasma collection step in the mucus-based workflow allowed sampling of smaller organisms where blood volume is limiting. It also resulted in significant gains in workflow efficiency, decreasing sampling time without loss of performance.
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Affiliation(s)
- Mary Jean See
- US EPA Office of Research and Development, Center for Computational Toxicology and Exposure, Cincinnati, OH, USA
| | - David C Bencic
- US EPA Office of Research and Development, Center for Computational Toxicology and Exposure, Cincinnati, OH, USA
| | - Robert W Flick
- US EPA Office of Research and Development, Center for Computational Toxicology and Exposure, Cincinnati, OH, USA
| | - Jim Lazorchak
- US EPA Office of Research and Development, Center for Environmental Measurement and Modeling, Cincinnati, OH, USA
| | - Adam D Biales
- US EPA Office of Research and Development, Center for Computational Toxicology and Exposure, Cincinnati, OH, USA.
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Rosenthal WC, McIntyre PB, Lisi PJ, Prather RB, Moody KN, Blum MJ, Hogan JD, Schoville SD. Invasion and rapid adaptation of guppies ( Poecilia reticulata) across the Hawaiian Archipelago. Evol Appl 2021; 14:1747-1761. [PMID: 34295361 PMCID: PMC8288002 DOI: 10.1111/eva.13236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 02/12/2021] [Accepted: 03/12/2021] [Indexed: 01/19/2023] Open
Abstract
How much does natural selection, as opposed to genetic drift, admixture, and gene flow, contribute to the evolution of invasive species following introduction to a new environment? Here we assess how evolution can shape biological invasions by examining population genomic variation in non-native guppies (Poecilia reticulata) introduced to the Hawaiian Islands approximately a century ago. By examining 18 invasive populations from four Hawaiian islands and four populations from the native range in northern South America, we reconstructed the history of introductions and evaluated population structure as well as the extent of ongoing gene flow across watersheds and among islands. Patterns of differentiation indicate that guppies have developed significant population structure, with little natural or human-mediated gene flow having occurred among populations following introduction. Demographic modeling and admixture graph analyses together suggest that guppies were initially introduced to O'ahu and Maui and then translocated to Hawai'i and Kaua'i. We detected evidence for only one introduction event from the native range, implying that any adaptive evolution in introduced populations likely utilized the genetic variation present in the founding population. Environmental association tests accounting for population structure identified loci exhibiting signatures of adaptive variation related to predators and landscape characteristics but not nutrient regimes. When paired with high estimates of effective population sizes and detectable population structure, the presence of environment-associated loci supports the role of natural selection in shaping contemporary evolution of Hawaiian guppy populations. Our findings indicate that local adaptation may engender invasion success, particularly in species with life histories that facilitate rapid evolution. Finally, evidence of low gene flow between populations suggests that removal could be an effective approach to control invasive guppies across the Hawaiian archipelago.
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Affiliation(s)
- William C. Rosenthal
- Center for LimnologyUniversity of Wisconsin‐MadisonMadisonWIUSA
- Department of BotanyUniversity of WyomingLaramieWYUSA
| | - Peter B. McIntyre
- Center for LimnologyUniversity of Wisconsin‐MadisonMadisonWIUSA
- Department of Natural ResourcesCornell UniversityIthacaNYUSA
| | - Peter J. Lisi
- Center for LimnologyUniversity of Wisconsin‐MadisonMadisonWIUSA
| | - Robert B. Prather
- Department of Evolution, Ecology, and Organismal BiologyUniversity of California RiversideRiversideCAUSA
| | - Kristine N. Moody
- Department of Ecology and Evolutionary BiologyUniversity of Tennessee KnoxvilleKnoxvilleTNUSA
- The ByWater InstituteTulane UniversityNew OrleansLAUSA
- Oak Ridge National LaboratoryOak RidgeTNUSA
| | - Michael J. Blum
- Department of Ecology and Evolutionary BiologyUniversity of Tennessee KnoxvilleKnoxvilleTNUSA
- The ByWater InstituteTulane UniversityNew OrleansLAUSA
| | - James Derek Hogan
- Department of Life SciencesTexas A&M University‐Corpus ChristiCorpus ChristiTXUSA
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6
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Zahaby Y, Xia P, Crump D, Provencher JF, Thomas PJ, Pauli B, Braune BM, Franckowiak RP, Gendron M, Savard G, Sarma SN, Mallory ML, O'Brien J. ToxChip PCR Arrays for Two Arctic-Breeding Seabirds: Applications for Regional Environmental Assessments. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:7521-7530. [PMID: 33983718 DOI: 10.1021/acs.est.1c00229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Increasing pollution in the Arctic poses challenges in terms of geographical and ecological monitoring. The Baffin Bay-Davis Strait (BBDS) region in the Canadian Arctic Archipelago is of particular concern due to the potential for increased shipping traffic and oil exploration. However, data on background contaminants associated with oil exploration/spills/natural seeps (e.g., polycyclic aromatic compounds [PAC]) and measures of potential effects for Arctic birds are limited. We developed a toxicogenomics approach to investigate the background gene expression profiles for two Arctic-breeding seabirds, the thick-billed murre (Uria lomvia) and the black guillemot (Cepphus grylle), which will aid effects-based monitoring efforts. Chemical burdens (53 PACs and 5 trace elements) and transcriptomic profiles (31 genes using a ToxChip PCR array) were examined in liver tissues (n = 30) of each species collected from the Qaqulluit and Akpait National Wildlife Areas in the BBDS region. While chemical and transcriptomic profiles demonstrated low variability across individuals for each species, gene expression signatures were able to distinguish guillemots collected from two distinct colonies. This toxicogenomics approach provides benchmark data for two Arctic seabirds and is promising for future monitoring efforts and strategic environmental assessments in this sensitive ecosystem and areas elsewhere in the circumpolar Arctic that are undergoing change.
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Affiliation(s)
- Yasmeen Zahaby
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Pu Xia
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Doug Crump
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Jennifer F Provencher
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Philippe J Thomas
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Bruce Pauli
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Birgit M Braune
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | | | - Michel Gendron
- Canadian Wildlife Service, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Guy Savard
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Sailendra Nath Sarma
- Science and Technology Branch, Environment and Climate Change Canada, Ottawa, ON K1A 0H3, Canada
| | - Mark L Mallory
- Department of Biology, Acadia University, Wolfville, NS B4P 2R6, Canada
| | - Jason O'Brien
- National Wildlife Research Centre, Environment and Climate Change Canada, 1125 Colonel By Dr., Ottawa, ON ON K1S, Canada
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7
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Effects of Wastewater Treatment Plant Effluent in a Receiving Stream on Reproductive Behavior of Fathead Minnows (Pimephales promelas). FISHES 2021. [DOI: 10.3390/fishes6020014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Wastewater treatment plant effluents contain a variety of endocrine disrupting chemicals (EDCs), including chemicals with estrogenic activity such as 17β-estradiol (E2), 17α-ethinyl estradiol (EE2), and nonylphenols. These substances can affect both behavior and physiology in vertebrate animals. To explore the presence and effects of these EDCs in a natural setting, juvenile and adult male fathead minnows, Pimephales promelas, were held in cages upstream and downstream of the effluent site of a wastewater treatment plant for 21 days and subsequently tested for changes in reproductive behaviors and production of vitellogenin. Additionally, estrogenic activity in the stream was measured using a yeast bioassay. Estrogenicity was found to be significantly higher downstream of the wastewater effluent when compared to levels upstream. Vitellogenin levels did not show a correlational pattern with levels of estrogenicity in the water, but two measures of reproductive behaviors occurred significantly less often in downstream males than upstream males. This suggests that a brief (three-week) exposure to stream water containing wastewater treatment plant effluent can bring about changes in reproductive behavior of fish and that behavior may be more sensitive to low levels of environmental endocrine disruptors than vitellogenin production.
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8
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Xia P, Crump D, Chiu S, Chan HM, O'Brien JM. Toxicogenomic Assessment of Complex Chemical Signatures in Double-Crested Cormorant Embryos from Variably Contaminated Great Lakes Sites. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:7504-7512. [PMID: 32459094 DOI: 10.1021/acs.est.0c02725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Using omics approaches to monitor complex environmental mixtures is challenging. Previously, we evaluated in vitro transcriptomic effects of complex organic extracts derived from avian eggs. However, there is a lack of studies using wild species that are naturally exposed to contaminant mixtures. Here, we examined polychlorinated biphenyl (PCB) and polybrominated diphenyl ether (PBDE) residues and gene expression in embryonic liver tissue of double-crested cormorants (Phalacrocorax auritus) collected from six variably contaminated colonies. Colonies near industrialized areas were distinguished from less contaminated sites based on their PCB and PBDE concentrations. The most variably expressed genes between sites were involved in pathways including, xenobiotic metabolism (e.g., Cyp1a4), lipid/bile acid homeostasis (e.g., Lbfabp), and oxidative stress (e.g., Mt4). Hierarchical clustering, based on relative gene expression, revealed a grouping pattern similar to chemical residue concentrations. Further, partial least squares regression analysis was used to estimate chemical concentrations from transcriptomics data. PCB 155 and BDE 47 showed the highest slopes (0.77 and 0.69, respectively) fitted by linear regression of measured and estimated chemical concentrations. The application of transcriptomics to a wild avian species, naturally exposed to complex chemical mixtures and other stressors, represents a promising means to distinguish and prioritize variably contaminated sites.
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Affiliation(s)
- Pu Xia
- National Wildlife Research Centre, Environment and Climate Change Canada, Ottawa K1A 0H3, Ontario, Canada
- Department of Biology, University of Ottawa, Ottawa K1N 6N5, Ontario, Canada
| | - Doug Crump
- National Wildlife Research Centre, Environment and Climate Change Canada, Ottawa K1A 0H3, Ontario, Canada
| | - Suzanne Chiu
- National Wildlife Research Centre, Environment and Climate Change Canada, Ottawa K1A 0H3, Ontario, Canada
| | - Hing Man Chan
- Department of Biology, University of Ottawa, Ottawa K1N 6N5, Ontario, Canada
| | - Jason M O'Brien
- National Wildlife Research Centre, Environment and Climate Change Canada, Ottawa K1A 0H3, Ontario, Canada
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9
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Krämer S, Busch W, Schüttler A. A Self-Organizing Map of the Fathead Minnow Liver Transcriptome to Identify Consistent Toxicogenomic Patterns across Chemical Fingerprints. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:526-537. [PMID: 31820487 DOI: 10.1002/etc.4646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/20/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
Lack of consistent findings in different experimental settings remains a major challenge in toxicogenomics. The present study investigated whether consistency between findings of different microarray experiments can be improved when the analysis is based on a common reference frame ("toxicogenomic universe"), which can be generated using the machine learning algorithm of the self-organizing map (SOM). This algorithm arranges and clusters genes on a 2-dimensional grid according to their similarity in expression across all considered data. In the present study, 19 data sets, comprising of 54 different adult fathead minnow liver exposure experiments, were retrieved from Gene Expression Omnibus and used to train a SOM. The resulting toxicogenomic universe aggregates 58 872 probes to 2500 nodes and was used to project, visualize, and compare the fingerprints of these 54 different experiments. For example, we could identify a common pattern, with 14% of significantly regulated nodes in common, in the data sets of an interlaboratory study of ethinylestradiol exposures. Consistency could be improved compared with the 5% total overlap in regulated genes reported before. Furthermore, we could determine a specific and consistent estrogen-related pattern of differentially expressed nodes and clusters in the toxicogenomic universe by applying additional clustering steps and comparing all obtained fingerprints. Our study shows that the SOM-based approach is useful for generating comparable toxicogenomic fingerprints and improving consistency between results of different experiments. Environ Toxicol Chem 2020;39:526-537. © 2019 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals, Inc. on behalf of SETAC.
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Affiliation(s)
- Stefan Krämer
- Helmholtz-Center for Environmental Research - UFZ GmbH, Leipzig, Germany
- Bioinformatics Group, Department of Computer Science and Interdisciplinary Center for Bioinformatics, University of Leipzig, Leipzig, Germany
| | - Wibke Busch
- Helmholtz-Center for Environmental Research - UFZ GmbH, Leipzig, Germany
| | - Andreas Schüttler
- Helmholtz-Center for Environmental Research - UFZ GmbH, Leipzig, Germany
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10
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Celino-Brady FT, Lerner DT, Seale AP. Experimental Approaches for Characterizing the Endocrine-Disrupting Effects of Environmental Chemicals in Fish. Front Endocrinol (Lausanne) 2020; 11:619361. [PMID: 33716955 PMCID: PMC7947849 DOI: 10.3389/fendo.2020.619361] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/30/2020] [Indexed: 12/22/2022] Open
Abstract
Increasing industrial and agricultural activities have led to a disturbing increase of pollutant discharges into the environment. Most of these pollutants can induce short-term, sustained or delayed impacts on developmental, physiological, and behavioral processes that are often regulated by the endocrine system in vertebrates, including fish, thus they are termed endocrine-disrupting chemicals (EDCs). Physiological impacts resulting from the exposure of these vertebrates to EDCs include abnormalities in growth and reproductive development, as many of the prevalent chemicals are capable of binding the receptors to sex steroid hormones. The approaches employed to investigate the action and impact of EDCs is largely dependent on the specific life history and habitat of each species, and the type of chemical that organisms are exposed to. Aquatic vertebrates, such as fish, are among the first organisms to be affected by waterborne EDCs, an attribute that has justified their wide-spread use as sentinel species. Many fish species are exposed to these chemicals in the wild, for either short or prolonged periods as larvae, adults, or both, thus, studies are typically designed to focus on either acute or chronic exposure at distinct developmental stages. The aim of this review is to provide an overview of the approaches and experimental methods commonly used to characterize the effects of some of the environmentally prevalent and emerging EDCs, including 17 α-ethinylestradiol, nonylphenol, BPA, phthalates, and arsenic; and the pervasive and potential carriers of EDCs, microplastics, on reproduction and growth. In vivo and in vitro studies are designed and employed to elucidate the direct effects of EDCs at the organismal and cellular levels, respectively. In silico approaches, on the other hand, comprise computational methods that have been more recently applied with the potential to replace extensive in vitro screening of EDCs. These approaches are discussed in light of model species, age and duration of EDC exposure.
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Affiliation(s)
- Fritzie T. Celino-Brady
- Department of Human Nutrition, Food and Animal Sciences, University of Hawai’i at Mānoa, Honolulu, HI, United States
| | - Darren T. Lerner
- University of Hawai’i Sea Grant College Program, University of Hawai’i at Mānoa, Honolulu, HI, United States
| | - Andre P. Seale
- Department of Human Nutrition, Food and Animal Sciences, University of Hawai’i at Mānoa, Honolulu, HI, United States
- *Correspondence: Andre P. Seale,
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11
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Ågerstrand M, Arnold K, Balshine S, Brodin T, Brooks BW, Maack G, McCallum ES, Pyle G, Saaristo M, Ford AT. Emerging investigator series: use of behavioural endpoints in the regulation of chemicals. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:49-65. [PMID: 31898699 DOI: 10.1039/c9em00463g] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Interest in behavioural ecotoxicology is growing, partly due to technological and computational advances in recording behaviours but also because of improvements of detection capacity facilitating reporting effects at environmentally relevant concentrations. The peer-reviewed literature now contains studies investigating the effects of chemicals, including pesticides and pharmaceuticals, on migration, dispersal, aggression, sociability, reproduction, feeding and anti-predator behaviours in vertebrates and invertebrates. To understand how behavioural studies could be used in regulatory decision-making we: (1) assessed the legal obstacles to using behavioural endpoints in EU chemicals regulation; (2) analysed the known cases of use of behavioural endpoints in EU chemicals regulation; and (3) provided examples of behavioural endpoints of relevance for population level effects. We conclude that the only legal obstacle to the use of behavioural endpoints in EU chemicals regulation is whether an endpoint is considered to be relevant at the population level or not. We also conclude that ecotoxicity studies investigating behavioural endpoints are occasionally used in the EU chemicals regulation, and underscore that behavioural endpoints can be relevant at the population level. To improve the current use of behavioural studies in regulatory decision-making contribution from all relevant stakeholders is required. We have the following recommendations: (1) researchers should conduct robust, well-designed and transparent studies that emphasize the relevance of the study for regulation of chemicals; (2) editors and scientific journals should promote detailed, reliable and clearly reported studies; (3) regulatory agencies and the chemical industry need to embrace new behavioural endpoints of relevance at the population level.
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Affiliation(s)
- Marlene Ågerstrand
- Department of Environmental Science (ACES), Stockholm University, Stockholm, Sweden.
| | - Kathryn Arnold
- Department of Environment and Geography, University of York, York, UK
| | - Sigal Balshine
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Canada
| | - Tomas Brodin
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences (SLU), Umeå, Sweden
| | - Bryan W Brooks
- Department of Environmental Science, Institute of Biomedical Studies, Baylor University, Waco, TX, USA and School of Environment, Jinan University, Guangzhou, China
| | - Gerd Maack
- Department of Pharmaceuticals, German Environment Agency (UBA), Dessau, Germany
| | - Erin S McCallum
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences (SLU), Umeå, Sweden
| | - Greg Pyle
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada
| | - Minna Saaristo
- School of Biological Sciences, Monash University, Victoria, Australia
| | - Alex T Ford
- Institute of Marine Sciences, University of Portsmouth, Portsmouth, UK
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12
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Giang PT, Burkina V, Sakalli S, Schmidt-Posthaus H, Rasmussen MK, Randak T, Grabic R, Grabicova K, Fedorova G, Koba O, Golovko O, Turek J, Cerveny D, Kolarova J, Zlabek V. Effects of Multi-Component Mixtures from Sewage Treatment Plant Effluent on Common Carp (Cyprinus carpio) under Fully Realistic Condition. ENVIRONMENTAL MANAGEMENT 2019; 63:466-484. [PMID: 29159481 DOI: 10.1007/s00267-017-0964-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 11/09/2017] [Indexed: 06/07/2023]
Abstract
This study characterized changes in biomarker responses in common carp (Cyprinus carpio) upon exposure to effluent water discharged from a sewage treatment plant (STP) under real conditions. Fish were exposed to contamination in Cezarka pond, which receives all of its water input from the STP in the town of Vodnany, Czech Republic. Five sampling events were performed at day 0, 30, 90, 180, and 360 starting in April 2015. In total, 62 pharmaceutical and personal care products (PPCPs) were detected in the polar organic chemical integrative sampler. Compared to a control pond, the total concentration of PPCPs was 45, 16, 7, and 7 times higher in Cezarka pond at day 30, 90, 180, and 360, respectively. The result of oxidative stress and antioxidant enzyme biomarkers indicated alterations in the liver and intestine tissues of fish from Cezarka pond at day 30 and 360, respectively. High plasma vitellogenin levels were observed in both exposed females (180 and 360 days) and males (360 days) compared with their respective controls. However, only exposed female fish had higher vitellogenin mRNA expression than the control fish in these periods. Exposed female fish showed irregular structure of the ovary with scattered oocytes, which further developed to a vitellogenic stage at day 360. Low white blood cell levels were indicated in all exposed fish. Despite numerous alterations in exposed fish, favorable ecological conditions including high availability of food resulted in a better overall condition of the exposed fish after 1 year of exposure compared to the controls.
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Affiliation(s)
- Pham Thai Giang
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic.
| | - Viktoriia Burkina
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Sidika Sakalli
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Heike Schmidt-Posthaus
- Vetsuisse Faculty, Centre for Fish and Wildlife Health, Department of Infectious Diseases and Pathobiology, University of Bern, Laenggassstrasse 122, 3001, Bern, Switzerland
| | | | - Tomas Randak
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Roman Grabic
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Katerina Grabicova
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Ganna Fedorova
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Olga Koba
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Oksana Golovko
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Jan Turek
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Daniel Cerveny
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Jitka Kolarova
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
| | - Vladimir Zlabek
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 25, Vodňany, Czech Republic
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13
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Pedrazzani R, Bertanza G, Brnardić I, Cetecioglu Z, Dries J, Dvarionienė J, García-Fernández AJ, Langenhoff A, Libralato G, Lofrano G, Škrbić B, Martínez-López E, Meriç S, Pavlović DM, Papa M, Schröder P, Tsagarakis KP, Vogelsang C. Opinion paper about organic trace pollutants in wastewater: Toxicity assessment in a European perspective. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:3202-3221. [PMID: 30463169 DOI: 10.1016/j.scitotenv.2018.10.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 09/30/2018] [Accepted: 10/02/2018] [Indexed: 06/09/2023]
Affiliation(s)
- Roberta Pedrazzani
- Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze, 38 and University Research Center "Integrated Models for Prevention and Protection in Environmental and Occupational Health", University of Brescia, 25123 Brescia, Italy.
| | - Giorgio Bertanza
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze, 43 and University Research Center "Integrated Models for Prevention and Protection in Environmental and Occupational Health", University of Brescia, 25123, Italy.
| | - Ivan Brnardić
- Faculty of Metallurgy, University of Zagreb, Aleja narodnih heroja 3, 44103 Sisak, Croatia.
| | - Zeynep Cetecioglu
- Department of Chemical Engineering and Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.
| | - Jan Dries
- Faculty of Applied Engineering, University of Antwerp, Salesianenlaan 90, 2660 Antwerp, Belgium.
| | - Jolanta Dvarionienė
- Kaunas University of Technology, Institute of Environmental Engineering, Gedimino str. 50, 44239 Kaunas, Lithuania.
| | - Antonio J García-Fernández
- Department of Toxicology, Faculty of Veterinary Medicine, University of Murcia, 30100, Campus of Espinardo, Spain.
| | - Alette Langenhoff
- Department of Environmental Technology, Wageningen University & Research, Bornse Weilanden 9, 6708, WG, Wageningen, the Netherlands.
| | - Giovanni Libralato
- Department of Biology, University of Naples Federico II, Via Cinthia ed. 7, 80126 Naples, Italy.
| | - Giusy Lofrano
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, Italy.
| | - Biljana Škrbić
- Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia.
| | - Emma Martínez-López
- Department of Toxicology, Faculty of Veterinary Medicine, University of Murcia, 30100, Campus of Espinardo, Spain.
| | - Süreyya Meriç
- Çorlu Engineering Faculty, Environmental Engineering Department, Namik Kemal University, Çorlu, 59860, Tekirdağ, Turkey.
| | - Dragana Mutavdžić Pavlović
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia.
| | - Matteo Papa
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze, 43 and University Research Center "Integrated Models for Prevention and Protection in Environmental and Occupational Health", University of Brescia, 25123, Italy.
| | - Peter Schröder
- Helmholtz-Center for Environmental Health GmbH, Ingolstaedter Landstr. 1, 85764 Neuherberg, Germany.
| | - Konstantinos P Tsagarakis
- Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67100 Xanthi, Greece.
| | - Christian Vogelsang
- Norwegian Institute for Water Research, Gaustadalleen 21, 0349 Oslo, Norway.
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14
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McLean AR, Du SN, Choi JA, Culbert BM, McCallum ES, Scott GR, Balshine S. Proximity to wastewater effluent alters behaviour in bluegill sunfish (Lepomis machrochirus). BEHAVIOUR 2019. [DOI: 10.1163/1568539x-00003576] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Wastewater from municipal, agricultural and industrial sources is a pervasive contaminant of aquatic environments worldwide. Most studies that have investigated the negative impacts of wastewater on organisms have taken place in a laboratory. Here, we tested whether fish behaviour is altered by exposure to environmentally relevant concentrations of wastewater effluent in the field. We caged bluegill sunfish (Lepomis macrochirus) for 28 days at two sites downstream (adjacent to and 870 m) from a wastewater treatment plant and at a reference site without wastewater inputs. We found that exposed fish had a dampened response to simulated predation compared to unexposed fish, suggesting that fish may be at greater risk of predation after exposure to wastewater effluent. Fish held at the different sites did not differ in activity and exploration. Our results suggest that predator avoidance may be impaired in fish exposed to wastewater effluent, which could have detrimental implications for aquatic communities.
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Affiliation(s)
- Adrienne R. McLean
- aDepartment of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4K1
| | - Sherry N.N. Du
- bDepartment of Biology, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4K1
| | - Jasmine A. Choi
- bDepartment of Biology, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4K1
| | - Brett M. Culbert
- aDepartment of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4K1
| | - Erin S. McCallum
- aDepartment of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4K1
| | - Graham R. Scott
- bDepartment of Biology, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4K1
| | - Sigal Balshine
- aDepartment of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4K1
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15
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Nilsen E, Smalling KL, Ahrens L, Gros M, Miglioranza KSB, Picó Y, Schoenfuss HL. Critical review: Grand challenges in assessing the adverse effects of contaminants of emerging concern on aquatic food webs. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:46-60. [PMID: 30294805 DOI: 10.1002/etc.4290] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/24/2018] [Accepted: 10/03/2018] [Indexed: 05/24/2023]
Abstract
Much progress has been made in the past few decades in understanding the sources, transport, fate, and biological effects of contaminants of emerging concern (CECs) in aquatic ecosystems. Despite these advancements, significant obstacles still prevent comprehensive assessments of the environmental risks associated with the presence of CECs. Many of these obstacles center around the extrapolation of effects of single chemicals observed in the laboratory or effects found in individual organisms or species in the field to impacts of multiple stressors on aquatic food webs. In the present review, we identify 5 challenges that must be addressed to promote studies of CECs from singular exposure events to multispecies aquatic food web interactions. There needs to be: 1) more detailed information on the complexity of mixtures of CECs in the aquatic environment, 2) a greater understanding of the sublethal effects of CECs on a wide range of aquatic organisms, 3) an ascertaining of the biological consequences of variable duration CEC exposures within and across generations in aquatic species, 4) a linkage of multiple stressors with CEC exposure in aquatic systems, and 5) a documenting of the trophic consequences of CEC exposure across aquatic food webs. We examine the current literature to show how these challenges can be addressed to fill knowledge gaps. Environ Toxicol Chem 2019;38:46-60. © 2018 SETAC.
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Affiliation(s)
- Elena Nilsen
- US Geological Survey, Oregon Water Science Center, Portland, Oregon, USA
| | - Kelly L Smalling
- US Geological Survey, New Jersey Water Science Center, Lawrenceville, New Jersey, USA
| | - Lutz Ahrens
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Meritxell Gros
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Catalan Institute for Water Research, Girona, Spain
| | - Karina S B Miglioranza
- Laboratory of Ecotoxicology and Environmental Pollution, Mar del Plata University, Mar del Plata, Argentina
| | - Yolanda Picó
- Environmental and Food Safety Research Group, Center of Research on Desertification (CIDe), Faculty of Pharmacy, University of Valencia, Valencia, Spain
| | - Heiko L Schoenfuss
- Aquatic Toxicology Laboratory, St. Cloud State University, St. Cloud, Minnesota, USA
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16
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Giang PT, Sakalli S, Fedorova G, Tilami SK, Bakal T, Najmanova L, Grabicova K, Kolarova J, Sampels S, Zamaratskaia G, Grabic R, Randak T, Zlabek V, Burkina V. Biomarker response, health indicators, and intestinal microbiome composition in wild brown trout (Salmo trutta m. fario L.) exposed to a sewage treatment plant effluent-dominated stream. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:1494-1509. [PMID: 29996446 DOI: 10.1016/j.scitotenv.2018.01.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/17/2017] [Accepted: 01/03/2018] [Indexed: 06/08/2023]
Abstract
Concerns about the effect of sewage treatment plant (STP) effluent on the health of freshwater ecosystems have increased. In this study, a unique approach was designed to show the effect of an STP effluent-dominated stream on native wild brown trout (Salmo trutta L.) exposed under fully natural conditions. Zivny stream is located in South Bohemia, Czech Republic. The downstream site of Zivny stream is an STP-affected site, which receives 25% of its water from Prachatice STP effluent. Upstream, however, is a minimally polluted water site and it is considered to be the control site. Native fish were collected from the upstream site, tagged, and distributed to both upstream and downstream sites. After 30, 90, and 180days, fish were recaptured from both sites to determine whether the downstream site of the Zivny stream is associated with the effects of environmental pollution. Several biomarkers indicating the oxidative stress and antioxidant enzyme activities, cytochrome P450 activity, xenoestrogenic effects, bacterial composition, and lipid composition were investigated. Additionally, polar chemical contaminants (pharmaceuticals and personal care products (PPCPs)) were quantified using polar organic chemical integrative samplers (POCIS). Fifty-three PPCPs were detected in the downstream site; 36 of those were constantly present during the 180-day investigation period. Elevated hepatic 7-benzyloxy-4-trifluoromethylcoumarin-O-debenzyloxylase (BFCOD) (after 90days) and blood plasma vitellogenin concentrations in males were detected in fish downstream of the STP effluent during all sampling events. An increase in the fishes' total fat content was also observed, but with low levels of ω-3 fatty acid in muscle tissue. Two bacterial taxa related to activated sludge were found in the intestines of fish from downstream. Our results show that Prachatice STP is a major source of PPCPs in the Zivny stream, which has biological consequences on fish physiology.
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Affiliation(s)
- Pham Thai Giang
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic.
| | - Sidika Sakalli
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Ganna Fedorova
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Sarvenaz Khalili Tilami
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Tomas Bakal
- Institute of Microbiology AS CR, Videnska 1083, 142 00 Prague 4, Czech Republic
| | - Lucie Najmanova
- Institute of Microbiology AS CR, Videnska 1083, 142 00 Prague 4, Czech Republic
| | - Katerina Grabicova
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Jitka Kolarova
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Sabine Sampels
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic; Swedish University of Agricultural Sciences, Uppsala Department of Molecular Science, P.O. Box 7015, SE-750 07 Uppsala, Sweden
| | - Galia Zamaratskaia
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic; Swedish University of Agricultural Sciences, Uppsala Department of Molecular Science, P.O. Box 7015, SE-750 07 Uppsala, Sweden
| | - Roman Grabic
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Tomas Randak
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Vladimir Zlabek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
| | - Viktoriia Burkina
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, Vodnany 389 25, Czech Republic
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17
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Jorgenson ZG, Thomas LM, Elliott SM, Cavallin JE, Randolph EC, Choy SJ, Alvarez DA, Banda JA, Gefell DJ, Lee KE, Furlong ET, Schoenfuss HL. Contaminants of emerging concern presence and adverse effects in fish: A case study in the Laurentian Great Lakes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 236:718-733. [PMID: 29454282 DOI: 10.1016/j.envpol.2018.01.070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 01/20/2018] [Accepted: 01/20/2018] [Indexed: 06/08/2023]
Abstract
The Laurentian Great Lakes are a valuable natural resource that is affected by contaminants of emerging concern (CECs), including sex steroid hormones, personal care products, pharmaceuticals, industrial chemicals, and new generation pesticides. However, little is known about the fate and biological effects of CECs in tributaries to the Great Lakes. In the current study, 16 sites on three rivers in the Great Lakes basin (Fox, Cuyahoga, and Raquette Rivers) were assessed for CEC presence using polar organic chemical integrative samplers (POCIS) and grab water samplers. Biological activity was assessed through a combination of in vitro bioassays (focused on estrogenic activity) and in vivo assays with larval fathead minnows. In addition, resident sunfish, largemouth bass, and white suckers were assessed for changes in biological endpoints associated with CEC exposure. CECs were present in all water samples and POCIS extracts. A total of 111 and 97 chemicals were detected in at least one water sample and POCIS extract, respectively. Known estrogenic chemicals were detected in water samples at all 16 sites and in POCIS extracts at 13 sites. Most sites elicited estrogenic activity in bioassays. Ranking sites and rivers based on water chemistry, POCIS chemistry, or total in vitro estrogenicity produced comparable patterns with the Cuyahoga River ranking as most and the Raquette River as least affected by CECs. Changes in biological responses grouped according to physiological processes, and differed between species but not sex. The Fox and Cuyahoga Rivers often had significantly different patterns in biological response Our study supports the need for multiple lines of evidence and provides a framework to assess CEC presence and effects in fish in the Laurentian Great Lakes basin.
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Affiliation(s)
- Zachary G Jorgenson
- U.S. Fish & Wildlife Service, Twin Cities Field Office, 4101 American Blvd. E, Bloomington, MN, 55425, United States; Aquatic Toxicology Laboratory, 720 Fourth Ave. S, WSB-273, St. Cloud State University, St. Cloud, MN, 56301, United States
| | - Linnea M Thomas
- Aquatic Toxicology Laboratory, 720 Fourth Ave. S, WSB-273, St. Cloud State University, St. Cloud, MN, 56301, United States
| | - Sarah M Elliott
- U.S. Geological Survey, Upper Midwest Water Science Center, 2280 Woodale Dr., Mounds View, MN, 55112, United States
| | - Jenna E Cavallin
- U.S. Environmental Protection Agency, Mid-Continent Ecology Division Laboratory, 6201 Congdon Blvd., Duluth, MN, 55804, United States
| | - Eric C Randolph
- U.S. Environmental Protection Agency, Mid-Continent Ecology Division Laboratory, 6201 Congdon Blvd., Duluth, MN, 55804, United States
| | - Steven J Choy
- U.S. Fish and Wildlife Service, Green Bay Field Office, 505 Science Dr., Madison, WI, 53711, United States
| | - David A Alvarez
- U.S. Geological Survey, Columbia Environmental Research Center, 4200 E New Haven Rd., Columbia, MO, 65201, United States
| | - Jo A Banda
- U.S. Fish and Wildlife Service, Ohio Field Office, 4625 Morse Rd., Suite 104, Columbus, OH, 43230, United States
| | - Daniel J Gefell
- U.S. Fish and Wildlife Service, New York Field Office, 3817 Luker Rd., Cortland, NY, 13045, United States
| | - Kathy E Lee
- U.S. Geological Survey, Toxic Substances Hydrology Program, 415 Pokegama Ave. S, Grand Rapids, MN, 55744, United States
| | - Edward T Furlong
- U.S. Geological Survey, National Water Quality Laboratory, Denver Federal Center, Bldg 95, Denver, CO, 80225, United States
| | - Heiko L Schoenfuss
- Aquatic Toxicology Laboratory, 720 Fourth Ave. S, WSB-273, St. Cloud State University, St. Cloud, MN, 56301, United States.
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18
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Garcia-Reyero N, Jayasinghe BS, Kroll KJ, Sabo-Attwood T, Denslow ND. Estrogen signaling through both membrane and nuclear receptors in the liver of fathead minnow. Gen Comp Endocrinol 2018; 257:50-66. [PMID: 28733229 DOI: 10.1016/j.ygcen.2017.07.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 05/04/2017] [Accepted: 07/16/2017] [Indexed: 11/24/2022]
Abstract
Estradiol is a potent sex steroid hormone that controls reproduction and other cellular pathways in fish. It is known to regulate important proteins such as vitellogenin, the egg yolk precursor protein, and zona radiata proteins that form the eggshell for fish eggs. These proteins are made in the liver and transported out into the blood from where they are taken up into the ovary during oogenesis. Estradiol can exert its influence directly through soluble nuclear receptors (there are three in fish) or indirectly through membrane receptors and a phosphorylation cascade. Often there is coordination through both genomic and non-genomic pathways. We have used a toxicogenomics approach to determine the contribution of genomic and non-genomic regulation in the liver of fathead minnows exposed to 5ng ethinylestradiol per liter or to a mixture of 5ng ethinylestradiol and 100ng ZM189,154 (ZM) per liter. ZM has previously been shown to be a "perfect" antagonist for the fish nuclear estrogen receptors but has displayed agonistic activities for membrane receptors. We find that both nuclear and membrane receptors contribute to the biosynthesis of vitellogenin 1 and estrogen receptor one (Esr1), among others. In addition, lipid metabolism pathways appear to require both activities.
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Affiliation(s)
- Natàlia Garcia-Reyero
- Environmental Laboratory, US Army Engineer Research & Development Center, Vicksburg, MS 39180, USA; Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA.
| | - B Sumith Jayasinghe
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA
| | - Kevin J Kroll
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA
| | - Tara Sabo-Attwood
- Department of Environmental and Global Health, University of Florida, Gainesville, FL 32611, USA
| | - Nancy D Denslow
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA
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19
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Blunt BJ, Singh A, Wu L, Gamal El-Din M, Belosevic M, Tierney KB. Reuse water: Exposure duration, seasonality and treatment affect tissue responses in a model fish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 607-608:1117-1125. [PMID: 28724250 DOI: 10.1016/j.scitotenv.2017.07.122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 07/13/2017] [Accepted: 07/13/2017] [Indexed: 06/07/2023]
Abstract
Partially remediated gray (reuse) water will likely find increasing use in a variety of applications owing to the increasing scarcity of freshwater. We aimed to determine if a model fish, the goldfish, could sense reuse water using olfaction (smell), and if 30min or 7d (acute) and 60d (sub-chronic) exposures would affect their olfactory responses to natural odorants. We examined olfaction as previous studies have found that numerous chemicals can impair the olfactory sense, which is critical to carrying out numerous life-sustaining behaviors from feeding to mating. We also examined if fish olfactory and liver tissues would mount a response in terms of biotransformation enzyme gene expression, and whether treatment of reuse water with UV/H2O2 ameliorated adverse effects following reuse water exposure. We found that fish olfactory tissue responded to reuse water as it would to a natural odorant and that UV/H2O2 treatment had no influence on this. With acute exposures, olfactory impairment was apparent regardless of water type (e.g. responses of 23-55% of control), but in sub-chronic exposures, only the untreated reuse water caused olfactory impairment. The exposure of fish to reuse water increased the expression of one enzyme (CYP1A; >2.5-6.5 fold change) and reuse water treatment with UV/H2O2 reversed the effect. There was a seasonal effect that was likely due to changes in water quality (60d summer exposure impaired olfaction whereas spring and fall exposures did not). Overall, the data suggest that reuse water may be detected by olfaction, impair olfactory responses in fish receiving unavoidable exposures, and that exposure duration and season are important factors to consider regarding adverse effects.
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Affiliation(s)
- B J Blunt
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada
| | - A Singh
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada
| | - L Wu
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada
| | - M Gamal El-Din
- Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 2E9, Canada
| | - M Belosevic
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada
| | - K B Tierney
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada; School of Public Health, University of Alberta, Edmonton, Alberta T6G 2E9, Canada.
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20
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McCallum ES, Krutzelmann E, Brodin T, Fick J, Sundelin A, Balshine S. Exposure to wastewater effluent affects fish behaviour and tissue-specific uptake of pharmaceuticals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 605-606:578-588. [PMID: 28672246 DOI: 10.1016/j.scitotenv.2017.06.073] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/09/2017] [Accepted: 06/09/2017] [Indexed: 06/07/2023]
Abstract
Pharmaceutical active compounds (PhACs) are increasingly being reported in wastewater effluents and surface waters around the world. The presence of these products, designed to modulate human physiology and behaviour, has created concern over whether PhACs similarly affect aquatic organisms. Though laboratory studies are beginning to address the effects of individual PhACs on fish behaviour, few studies have assessed the effects of exposure to complex, realistic wastewater effluents on fish behaviour. In this study, we exposed a wild, invasive fish species-the round goby (Neogobius melanostomus)-to treated wastewater effluent (0%, 50% or 100% effluent dilutions) for 28days. We then determined the impact of exposure on fish aggression, an important behaviour for territory acquisition and defense. We found that exposure to 100% wastewater effluent reduced the number of aggressive acts that round goby performed. We complimented our behavioural assay with measures of pharmaceutical uptake in fish tissues. We detected 11 of 93 pharmaceutical compounds that we tested for in round goby tissues, and we found that concentration was greatest in the brain followed by plasma, then gonads, then liver, and muscle. Fish exposed to 50% and 100% effluent had higher tissue concentrations of pharmaceuticals and concentrated a greater number of pharmaceutical compounds compare to control fish exposed to no (0%) effluent. Exposed fish also showed increased ethoxyresorufin-O-deethylase (EROD) activity in liver tissue, suggesting that fish were exposed to planar halogenated/polycyclic aromatic hydrocarbons (PHHs/PAHs) in the wastewater effluent. Our findings suggest that fish in effluent-dominated systems may have altered behaviours and greater tissue concentration of PhACs. Moreover, our results underscore the importance of characterizing exposure to multiple pollutants, and support using behaviour as a sensitive tool for assessing animal responses to complex contaminant mixtures, like wastewater effluent.
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Affiliation(s)
- Erin S McCallum
- Department of Psychology Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada.
| | - Emily Krutzelmann
- Department of Psychology Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada
| | - Tomas Brodin
- Department of Ecology and Environmental Science, Umeå University, SE-901 87 Umeå, Sweden
| | - Jerker Fick
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Anna Sundelin
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Sigal Balshine
- Department of Psychology Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada
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21
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Reduced anxiety is associated with the accumulation of six serotonin reuptake inhibitors in wastewater treatment effluent exposed goldfish Carassius auratus. Sci Rep 2017; 7:17001. [PMID: 29208964 PMCID: PMC5717243 DOI: 10.1038/s41598-017-15989-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 09/19/2017] [Indexed: 11/23/2022] Open
Abstract
Pharmaceuticals and personal care products (PPCPs) have been found in wastewater treatment plant (WWTP) effluents and their recipient watersheds. To assess the potential of WWTP effluents to alter fish behaviour, we caged male goldfish (Carassius auratus) for 21-days at three sites along a contamination gradient downstream from a WWTP which discharges into Cootes Paradise Marsh, on the western tip of Lake Ontario. We also included a fourth caging site as an external reference site within Lake Ontario at the Jordan Harbour Conservation Area. We then measured concentrations of PPCPs and monoamine neurotransmitters in caged goldfish plasma, and conducted behavioural assays measuring activity, startle response, and feeding. We detected fifteen different PPCPs in goldfish plasma including six serotonin reuptake inhibitors (amitriptyline, citalopram, fluoxetine/norfluoxetine, sertraline, venlafaxine, and diphenhydramine). Plasma concentrations of serotonin were significantly greater in plasma of fish caged closer to the WWTP effluent outfall site. The fish caged near and downstream of the WWTP effluent were bolder, more exploratory, and more active overall than fish caged at the reference site. Taken together, our results suggest that fish downstream of WWTPs are accumulating PPCPs at levels sufficient to alter neurotransmitter concentrations and to also impair ecologically-relevant behaviours.
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22
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Tierney KB, Welsh PO, Mills M, Nason S, Barreda DR, Paszkowski CA. Mallards (Anas platyrhynchos) and wastewater ponds, Part II: Developmental, physiological, morphological and behavioural effects of ingestion of secondary clarified effluent water. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 143:336-343. [PMID: 28434758 DOI: 10.1016/j.ecoenv.2017.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 04/07/2017] [Accepted: 04/10/2017] [Indexed: 06/07/2023]
Abstract
Rather than migrating, mallard ducks may choose to overwinter in northern cities on open-water thermal refuges, such as municipal wastewater treatment ponds, which in Edmonton, Canada, stay ≥10°C during frigid winter months. Refuging mallards spend appreciable time daily on these ponds and hydrate using secondary clarified municipal wastewater (SCEW). We aimed to determine if SCEW ingestion affected mallard health. To this end, we gavaged newly hatched mallards (domesticated Pekin strain) over their first month with SCEW, as well as water representing negative and positive controls (municipal tap water, and the primary active ingredient from birth control pills, 17α-ethinyl estradiol (EE2), respectively). The gavage of SCEW did not affect mass of the body, liver, spleen or heart, but was associated with small increases in beak and wing chord length. In the positive control, EE2 gavage caused similar responses, but also increased tarsus and phallus length. The increases likely owed to the stimulatory effects of estrogenic substances on bone and phallus development. For the biotransformation enzyme CYP2H1, gene expression was numerically increased by both SCEW and EE2. In terms of behavior, SCEW and EE2 gavage reduced two infrequently detected behaviours, pecking and resting alone. Our results suggest that SCEW ingestion would be unlikely to cause any overt health effects in adults, but may evoke subtle, covert effects nevertheless.
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Affiliation(s)
- K B Tierney
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9.
| | - P O Welsh
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9
| | - M Mills
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9
| | - S Nason
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9
| | - D R Barreda
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9
| | - C A Paszkowski
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9
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23
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Perkins EJ, Habib T, Escalon BL, Cavallin JE, Thomas L, Weberg M, Hughes MN, Jensen KM, Kahl MD, Villeneuve DL, Ankley GT, Garcia-Reyero N. Prioritization of Contaminants of Emerging Concern in Wastewater Treatment Plant Discharges Using Chemical:Gene Interactions in Caged Fish. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51. [PMID: 28651047 PMCID: PMC6126926 DOI: 10.1021/acs.est.7b01567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We examined whether contaminants present in surface waters could be prioritized for further assessment by linking the presence of specific chemicals to gene expression changes in exposed fish. Fathead minnows were deployed in cages for 2, 4, or 8 days at three locations near two different wastewater treatment plant discharge sites in the Saint Louis Bay, Duluth, MN and one upstream reference site. The biological impact of 51 chemicals detected in the surface water of 133 targeted chemicals was determined using biochemical endpoints, exposure activity ratios for biological and estrogenic responses, known chemical:gene interactions from biological pathways and knowledge bases, and analysis of the covariance of ovary gene expression with surface water chemistry. Thirty-two chemicals were significantly linked by covariance with expressed genes. No estrogenic impact on biochemical endpoints was observed in male or female minnows. However, bisphenol A (BPA) was identified by chemical:gene covariation as the most impactful estrogenic chemical across all exposure sites. This was consistent with identification of estrogenic effects on gene expression, high BPA exposure activity ratios across all test sites, and historical analysis of the study area. Gene expression analysis also indicated the presence of nontargeted chemicals including chemotherapeutics consistent with a local hospital waste stream. Overall impacts on gene expression appeared to be related to changes in treatment plant function during rain events. This approach appears useful in examining the impacts of complex mixtures on fish and offers a potential route in linking chemical exposure to adverse outcomes that may reduce population sustainability.
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Affiliation(s)
- Edward J. Perkins
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS, USA
- Corresponding author: ; ERDC, 3909 Halls Ferry Rd,Vicksburg, MS 39180; phone: +1-601-634-2872
| | - Tanwir Habib
- Badger Technical Services, 3909 Halls Ferry Road, Vicksburg, MS, USA
| | - Barbara L. Escalon
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS, USA
| | - Jenna E. Cavallin
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN, USA
| | - Linnea Thomas
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN, USA
| | - Matthew Weberg
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN, USA
| | - Megan N. Hughes
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN, USA
| | - Kathleen M. Jensen
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN, USA
| | - Michael D. Kahl
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN, USA
| | - Daniel L. Villeneuve
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN, USA
| | - Gerald T. Ankley
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN, USA
| | - Natàlia Garcia-Reyero
- U.S. Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS, USA
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24
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Marjan P, Martyniuk CJ, Fuzzen MLM, MacLatchy DL, McMaster ME, Servos MR. Returning to normal? Assessing transcriptome recovery over time in male rainbow darter (Etheostoma caeruleum) liver in response to wastewater-treatment plant upgrades. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:2108-2122. [PMID: 28106290 DOI: 10.1002/etc.3741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 12/05/2016] [Accepted: 01/17/2017] [Indexed: 06/06/2023]
Abstract
The present study measured hepatic transcriptome responses in male rainbow darter (Etheostoma caeruleum) exposed to 2 municipal wastewater-treatment plants (MWWTPs; Kitchener and Waterloo) over 4 fall seasons (2011-2014) in the Grand River (Ontario, Canada). The overall goal was to determine if upgrades at the Kitchener MWWTP (in 2012) resulted in transcriptome responses indicative of improved effluent quality. The number of differentially expressed probes in fish downstream of the Kitchener outfall (904-1223) remained comparable to that downstream of Waterloo (767-3867). Noteworthy was that year and the interaction of year and site explained variability in more than twice the number of transcripts than site alone, suggesting that year and the interaction of year and site had a greater effect on the transcriptome than site alone. Gene set enrichment analysis revealed a gradual reduction in the number of gene ontologies over time at exposure sites, which corresponded with lower contaminant load. Subnetwork enrichment analysis revealed that there were noticeable shifts in the cell pathways differently expressed in the liver preupgrade and postupgrade. The dominant pathways altered preupgrade were related to genetic modifications and cell division, whereas postupgrade they were associated with the immune system, reproduction, and biochemical responses. Molecular pathways were dynamic over time, and following the upgrades, there was little evidence that gene expression profiles in fish collected from high-impact sites postupgrade were more similar to those in fish collected from reference site. Environ Toxicol Chem 2017;36:2108-2122. © 2017 SETAC.
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Affiliation(s)
- Patricija Marjan
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
| | - Christopher J Martyniuk
- Center for Environmental and Human Toxicology and Department of Physiological Science, Genetics Institute, College of Medicine, University of Florida, Gainesville, Florida
| | - Meghan L M Fuzzen
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
| | - Deborah L MacLatchy
- Department of Biology, Wilfrid Laurier University, Waterloo, Ontario, Canada
| | - Mark E McMaster
- Canada Center Inland Waters, National Water Research Institute, Aquatic Contaminant Research Division, Environment Canada, Burlington, Ontario, Canada
| | - Mark R Servos
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
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25
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Marjan P, Bragg LM, MacLatchy DL, Servos MR, Martyniuk CJ. How Does Reference Site Selection Influence Interpretation of Omics Data?: Evaluating Liver Transcriptome Responses in Male Rainbow Darter (Etheostoma caeruleum) across an Urban Environment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:6470-6479. [PMID: 28489360 DOI: 10.1021/acs.est.7b00894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Studies quantifying the influence of reference site selection on transcriptomic profiles in aquatic organisms exposed to complex mixtures are lacking in the literature, despite the significant implications of such research for the interpretation of omics data sets. We measured hepatic transcriptomic responses in fish across an urban environment in the central Grand River watershed (Ontario, Canada). Adult male rainbow darter (RBD) (Etheostoma caeruleum) were collected from nine sites at varying distances from two major municipal wastewater treatment plants (MWWTPs) (Waterloo, Kitchener), including three upstream reference sites. The transcriptomic response in RBD was independently compared with that of fish from each of the three reference sites. Data collected in fish downstream of the Waterloo MWWTP (poorest effluent quality) suggested that ∼15.5% of the transcriptome response was influenced by reference site selection. In contrast, at sites where the impact of MWWTPs was less-pronounced and fish showed less of a transcriptome response, reference site selection had a greater influence (i.e., ∼56.9% of transcripts were different depending on the site used). This study highlights the importance of conducting transcriptomics studies that leverage more than one reference site, and it broadens our understanding of the molecular responses in fish in dynamic natural environments.
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Affiliation(s)
- Patricija Marjan
- Department of Biology, University of Waterloo , 200 University Avenue West, N2L 3G1 Waterloo, Ontario, Canada
| | - Leslie M Bragg
- Department of Biology, University of Waterloo , 200 University Avenue West, N2L 3G1 Waterloo, Ontario, Canada
| | - Deborah L MacLatchy
- Department of Biology, Wilfrid Laurier University , 75 University Avenue West, N2L 3C5 Waterloo, Ontario, Canada
| | - Mark R Servos
- Department of Biology, University of Waterloo , 200 University Avenue West, N2L 3G1 Waterloo, Ontario, Canada
| | - Cristopher J Martyniuk
- Center for Environmental and Human Toxicology & Department of Physiological Sciences, University of Florida , 2187 Mowry Road, Building 471, PO Box 110885, Gainesville, Florida 32611, United States
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26
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Lee Pow CSD, Tilahun K, Creech K, Law JM, Cope WG, Kwak TJ, Rice JA, Aday DD, Kullman SW. Windows of Susceptibility and Consequences of Early Life Exposures to 17β-estradiol on Medaka (Oryzias latipes) Reproductive Success. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:5296-5305. [PMID: 28379677 DOI: 10.1021/acs.est.7b01568] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Estrogens and estrogen mimics are commonly found in surface waters and are associated with deleterious effects in fish populations. Impaired fertility and fecundity in fish following chronic exposures to estrogens and estrogen mimics during critical windows in development are well documented. However, information regarding differential reproductive effects of exposure within defined developmental stages remains sparse. In this study, reproductive capacity was assessed in Japanese medaka (Oryzias latipes) after exposure to two concentrations of 17β-estradiol (E2β; 2 ng/L and 50 ng/L) during four distinct stages of development: gonad development, gonad differentiation, development of secondary sex characteristics (SSC) and gametogenesis. Exposure to E2β did not adversely impact survival, hatch success, growth, or genotypic ratios. In contrast, exposure to 50 ng/L E2β during SSC development altered phenotypic ratios and SSC. Exposure to both E2β treatments reduced reproductive capacity (fertility, fecundity) by 7.3-57.4% in adult medaka breeding pairs, with hindrance of SSC development resulting in the largest disruption in breeding capacity (51.6-57.4% decrease) in the high concentration. This study documents differential effects among four critical stages of development and provides insight into factors (window of exposure, exposure concentration and duration of exposure period) contributing to reproductive disruption in fish.
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Affiliation(s)
- Crystal S D Lee Pow
- Department of Biological Sciences, Environmental and Molecular Toxicology Program, North Carolina State University , 850 Main Campus Drive, Raleigh, North Carolina 27606, United States
| | - Kedamawit Tilahun
- Department of Biological Sciences, Environmental and Molecular Toxicology Program, North Carolina State University , 850 Main Campus Drive, Raleigh, North Carolina 27606, United States
| | - Kari Creech
- Department of Biological Sciences, Environmental and Molecular Toxicology Program, North Carolina State University , 850 Main Campus Drive, Raleigh, North Carolina 27606, United States
| | - J Mac Law
- Department of Population Health and Pathobiology, North Carolina State University , 1060 William Moore Drive, Raleigh, North Carolina 27607, United States
| | - W Gregory Cope
- Department of Applied Ecology, North Carolina State University , 127 David Clark Laboratories, Raleigh, North Carolina 27695, United States
| | - Thomas J Kwak
- Department of Applied Ecology, North Carolina State University , 127 David Clark Laboratories, Raleigh, North Carolina 27695, United States
- United States Geological Survey, North Carolina Cooperative Fish and Wildlife Research Unit, Raleigh, North Carolina 27695, United States
| | - James A Rice
- Department of Applied Ecology, North Carolina State University , 127 David Clark Laboratories, Raleigh, North Carolina 27695, United States
| | - D Derek Aday
- Department of Applied Ecology, North Carolina State University , 127 David Clark Laboratories, Raleigh, North Carolina 27695, United States
| | - Seth W Kullman
- Department of Biological Sciences, Environmental and Molecular Toxicology Program, North Carolina State University , 850 Main Campus Drive, Raleigh, North Carolina 27606, United States
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McCallum ES, Du SNN, Vaseghi-Shanjani M, Choi JA, Warriner TR, Sultana T, Scott GR, Balshine S. In situ exposure to wastewater effluent reduces survival but has little effect on the behaviour or physiology of an invasive Great Lakes fish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 184:37-48. [PMID: 28086147 DOI: 10.1016/j.aquatox.2016.12.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/16/2016] [Accepted: 12/17/2016] [Indexed: 06/06/2023]
Abstract
Treated effluents from wastewater treatment plants (WWTP) are a significant source of anthropogenic contaminants, such as pharmaceuticals, in the aquatic environment. Although our understanding of how wastewater effluent impacts fish reproduction is growing, we know very little about how effluent affects non-reproductive physiology and behaviours associated with fitness (such as aggression and activity). To better understand how fish cope with chronic exposure to wastewater effluent in the wild, we caged round goby (Neogobius melanostomus) for three weeks at different distances from a wastewater outflow. We evaluated the effects of this exposure on fish survival, behaviour, metabolism, and respiratory traits. Fish caged inside the WWTP and close to the outfall experienced higher mortality than fish from the reference site. Interestingly, those fish that survived the exposure performed similarly to fish caged at the reference site in tests of aggressive behaviour, startle-responses, and dispersal. Moreover, the fish near WWTP outflow displayed similar resting metabolism (O2 consumption rates), hypoxia tolerance, haemoglobin concentration, haematocrit, and blood-oxygen binding affinities as the fish from the more distant reference site. We discuss our findings in relation to exposure site water quality, concentrations of pharmaceutical and personal care product pollutants, and our test species tolerance.
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Affiliation(s)
- Erin S McCallum
- Department of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West Hamilton, ON L8S 4K1, Canada.
| | - Sherry N N Du
- Department of Biology, McMaster University, 1280 Main Street West Hamilton, ON L8S 4K1, Canada
| | - Maryam Vaseghi-Shanjani
- Department of Biology, McMaster University, 1280 Main Street West Hamilton, ON L8S 4K1, Canada
| | - Jasmine A Choi
- Department of Biology, McMaster University, 1280 Main Street West Hamilton, ON L8S 4K1, Canada
| | - Theresa R Warriner
- Department of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West Hamilton, ON L8S 4K1, Canada
| | - Tamanna Sultana
- School of Environment, Trent University, 1600 West Bank Drive Peterborough, ON K9J 7B8, Canada
| | - Graham R Scott
- Department of Biology, McMaster University, 1280 Main Street West Hamilton, ON L8S 4K1, Canada
| | - Sigal Balshine
- Department of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West Hamilton, ON L8S 4K1, Canada
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28
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Schroeder AL, Martinović-Weigelt D, Ankley GT, Lee KE, Garcia-Reyero N, Perkins EJ, Schoenfuss HL, Villeneuve DL. Prior knowledge-based approach for associating contaminants with biological effects: A case study in the St. Croix River basin, MN, WI, USA. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 221:427-436. [PMID: 27939634 PMCID: PMC6139436 DOI: 10.1016/j.envpol.2016.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 11/14/2016] [Accepted: 12/03/2016] [Indexed: 05/19/2023]
Abstract
Evaluating potential adverse effects of complex chemical mixtures in the environment is challenging. One way to address that challenge is through more integrated analysis of chemical monitoring and biological effects data. In the present study, water samples from five locations near two municipal wastewater treatment plants in the St. Croix River basin, on the border of MN and WI, USA, were analyzed for 127 organic contaminants. Known chemical-gene interactions were used to develop site-specific knowledge assembly models (KAMs) and formulate hypotheses concerning possible biological effects associated with chemicals detected in water samples from each location. Additionally, hepatic gene expression data were collected for fathead minnows (Pimephales promelas) exposed in situ, for 12 d, at each location. Expression data from oligonucleotide microarrays were analyzed to identify functional annotation terms enriched among the differentially-expressed probes. The general nature of many of the terms made hypothesis formulation on the basis of the transcriptome-level response alone difficult. However, integrated analysis of the transcriptome data in the context of the site-specific KAMs allowed for evaluation of the likelihood of specific chemicals contributing to observed biological responses. Thirteen chemicals (atrazine, carbamazepine, metformin, thiabendazole, diazepam, cholesterol, p-cresol, phenytoin, omeprazole, ethyromycin, 17β-estradiol, cimetidine, and estrone), for which there was statistically significant concordance between occurrence at a site and expected biological response as represented in the KAM, were identified. While not definitive, the approach provides a line of evidence for evaluating potential cause-effect relationships between components of a complex mixture of contaminants and biological effects data, which can inform subsequent monitoring and investigation.
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Affiliation(s)
- Anthony L Schroeder
- University of Minnesota - Twin Cities, Water Resources Center, 1985 Lower Buford Circle, St. Paul, MN 55108, USA; U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Duluth, MN 55804, USA
| | - Dalma Martinović-Weigelt
- University of St. Thomas, Department of Biology, Mail OWS 390, 2115 Summit Ave, Saint Paul, MN 55105, USA
| | - Gerald T Ankley
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Duluth, MN 55804, USA
| | - Kathy E Lee
- U.S. Geological Survey, Toxic Substances Hydrology Program, Grand Rapids, MN 55744, USA
| | - Natalia Garcia-Reyero
- U.S. Army Engineer Research and Development Center - Environmental Laboratory, Vicksburg, MS 39180, USA; Mississippi State University - Institute for Genomics Biocomputing and Biotechnology, Starkville, MS 39762, USA
| | - Edward J Perkins
- U.S. Army Engineer Research and Development Center - Environmental Laboratory, Vicksburg, MS 39180, USA
| | - Heiko L Schoenfuss
- Aquatic Toxicology Laboratory, WSB-273, St., Cloud State University, St. Cloud, MN 56301, USA
| | - Daniel L Villeneuve
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Duluth, MN 55804, USA.
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Li S, Villeneuve DL, Berninger JP, Blackwell BR, Cavallin JE, Hughes MN, Jensen KM, Jorgenson Z, Kahl MD, Schroeder AL, Stevens KE, Thomas LM, Weberg MA, Ankley GT. An integrated approach for identifying priority contaminant in the Great Lakes Basin - Investigations in the Lower Green Bay/Fox River and Milwaukee Estuary areas of concern. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 579:825-837. [PMID: 27866739 PMCID: PMC6086123 DOI: 10.1016/j.scitotenv.2016.11.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 05/19/2023]
Abstract
Environmental assessment of complex mixtures typically requires integration of chemical and biological measurements. This study demonstrates the use of a combination of instrumental chemical analyses, effects-based monitoring, and bio-effects prediction approaches to help identify potential hazards and priority contaminants in two Great Lakes Areas of Concern (AOCs), the Lower Green Bay/Fox River located near Green Bay, WI, USA and the Milwaukee Estuary, located near Milwaukee, WI, USA. Fathead minnows were caged at four sites within each AOC (eight sites total). Following 4d of in situ exposure, tissues and biofluids were sampled and used for targeted biological effects analyses. Additionally, 4d composite water samples were collected concurrently at each caged fish site and analyzed for 132 analytes as well as evaluated for total estrogenic and androgenic activity using cell-based bioassays. Of the analytes examined, 75 were detected in composite samples from at least one site. Based on multiple analyses, one site in the East River and another site near a paper mill discharge in the Lower Green Bay/Fox River AOC, were prioritized due to their estrogenic and androgenic activity, respectively. The water samples from other sites generally did not exhibit significant estrogenic or androgenic activity, nor was there evidence for endocrine disruption in the fish exposed at these sites as indicated by the lack of alterations in ex vivo steroid production, circulating steroid concentrations, or vitellogenin mRNA expression in males. Induction of hepatic cyp1a mRNA expression was detected at several sites, suggesting the presence of chemicals that activate the aryl hydrocarbon receptor. To expand the scope beyond targeted investigation of endpoints selected a priori, several bio-effects prediction approaches were employed to identify other potentially disturbed biological pathways and related chemical constituents that may warrant future monitoring at these sites. For example, several chemicals such as diethylphthalate and naphthalene, and genes and related pathways, such as cholinergic receptor muscarinic 3 (CHRM3), estrogen receptor alpha1 (esr1), chemokine ligand 10 protein (CXCL10), tumor protein p53 (p53), and monoamine oxidase B (Maob), were identified as candidates for future assessments at these AOCs. Overall, this study demonstrates that a better prioritization of contaminants and associated hazards can be achieved through integrated evaluation of multiple lines of evidence. Such prioritization can guide more comprehensive follow-up risk assessment efforts.
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Affiliation(s)
- Shibin Li
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804; National Research Council, U.S. Environmental Protection Agency, 6201 Congdon Boulevard, Duluth, MN 55804, USA.
| | - Daniel L Villeneuve
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Jason P Berninger
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804; National Research Council, U.S. Environmental Protection Agency, 6201 Congdon Boulevard, Duluth, MN 55804, USA
| | - Brett R Blackwell
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Jenna E Cavallin
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Megan N Hughes
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Kathleen M Jensen
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Zachary Jorgenson
- US Fish and Wildlife Service, Twin Cities Ecological Field Services Field Office, 4101 American Blvd East, Bloomington, MN 55425, USA
| | - Michael D Kahl
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Anthony L Schroeder
- University of Minnesota Crookston, Math, Science and Technology Department, 2900 University Ave., Crookston, MN 56716, USA
| | - Kyle E Stevens
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Linnea M Thomas
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Matthew A Weberg
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
| | - Gerald T Ankley
- U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Boulevard, Duluth, MN, USA, 55804
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Bisesi JH, Robinson SE, Lavelle CM, Ngo T, Castillo B, Crosby H, Liu K, Das D, Plazas-Tuttle J, Saleh NB, Ferguson PL, Denslow ND, Sabo-Attwood T. Influence of the Gastrointestinal Environment on the Bioavailability of Ethinyl Estradiol Sorbed to Single-Walled Carbon Nanotubes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:948-957. [PMID: 27977933 DOI: 10.1021/acs.est.6b04728] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Recent evidence suggests that, because of their sorptive nature, if single-walled carbon nanotubes (SWCNTs) make their way into aquatic environments, they may reduce the toxicity of other waterborne contaminants. However, few studies have examined whether contaminants remain adsorbed following ingestion by aquatic organisms. The objective of this study was to examine the bioavailability and bioactivity of ethinyl estradiol (EE2) sorbed onto SWCNTs in a fish gastrointestinal (GI) tract. Sorption experiments indicated that SWCNTs effectively adsorbed EE2, but the chemical was still able to bind and activate soluble estrogen receptors (ERs) in vitro. However, centrifugation to remove SWCNTs and adsorbed EE2 significantly reduced ER activity compared to that of EE2 alone. Additionally, the presence of SWCNTs did not reduce the extent of EE2-driven induction of vitellogenin 1 in vivo compared to the levels in organisms exposed to EE2 alone. These results suggest that while SWCNTs adsorb EE2 from aqueous solutions, under biological conditions EE2 can desorb and retain bioactivity. Additional results indicate that interactions with gastrointestinal proteins may decrease the level of adsorption of estrogen to SWCNTs by 5%. This study presents valuable data for elucidating how SWCNTs interact with chemicals that are already present in our aquatic environments, which is essential for determining their potential health risk.
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Affiliation(s)
- Joseph H Bisesi
- Department of Environmental and Global Health, University of Florida , 101 South Newell Drive, Box 100188, Gainesville, Florida 32610, United States
- Center for Environmental and Human Toxicology, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
| | - Sarah E Robinson
- Department of Environmental and Global Health, University of Florida , 101 South Newell Drive, Box 100188, Gainesville, Florida 32610, United States
- Center for Environmental and Human Toxicology, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
| | - Candice M Lavelle
- Department of Environmental and Global Health, University of Florida , 101 South Newell Drive, Box 100188, Gainesville, Florida 32610, United States
- Center for Environmental and Human Toxicology, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
| | - Thuy Ngo
- Department of Environmental and Global Health, University of Florida , 101 South Newell Drive, Box 100188, Gainesville, Florida 32610, United States
- Center for Environmental and Human Toxicology, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
| | - Blake Castillo
- Department of Environmental and Global Health, University of Florida , 101 South Newell Drive, Box 100188, Gainesville, Florida 32610, United States
- Center for Environmental and Human Toxicology, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
| | - Hayleigh Crosby
- Department of Environmental and Global Health, University of Florida , 101 South Newell Drive, Box 100188, Gainesville, Florida 32610, United States
- Center for Environmental and Human Toxicology, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
| | - Keira Liu
- Nicholas School of the Environment, Duke University , Box 90328, Durham, North Carolina 27708, United States
- Department of Civil and Environmental Engineering, Duke University , 121 Hudson Hall, Box 90287, Durham, North Carolina 27708, United States
- Center for the Environmental Implications of Nanotechnologies (CEINT), Duke University , 121 Hudson Hall, Box 90287, Durham, North Carolina 27708, United States
| | - Dipesh Das
- Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin , 301 East Dean Keeton Street, Austin, Texas 78712, United States
| | - Jamie Plazas-Tuttle
- Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin , 301 East Dean Keeton Street, Austin, Texas 78712, United States
| | - Navid B Saleh
- Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin , 301 East Dean Keeton Street, Austin, Texas 78712, United States
| | - P Lee Ferguson
- Nicholas School of the Environment, Duke University , Box 90328, Durham, North Carolina 27708, United States
- Department of Civil and Environmental Engineering, Duke University , 121 Hudson Hall, Box 90287, Durham, North Carolina 27708, United States
- Center for the Environmental Implications of Nanotechnologies (CEINT), Duke University , 121 Hudson Hall, Box 90287, Durham, North Carolina 27708, United States
| | - Nancy D Denslow
- Center for Environmental and Human Toxicology, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
- Department of Physiological Sciences, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
| | - Tara Sabo-Attwood
- Department of Environmental and Global Health, University of Florida , 101 South Newell Drive, Box 100188, Gainesville, Florida 32610, United States
- Center for Environmental and Human Toxicology, University of Florida , 2187 Mowry Road, Box 110885, Gainesville, Florida 32611, United States
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Martyniuk CJ, Doperalski NJ, Prucha MS, Zhang JL, Kroll KJ, Conrow R, Barber DS, Denslow ND. High contaminant loads in Lake Apopka's riparian wetland disrupt gene networks involved in reproduction and immune function in largemouth bass. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2016; 19:140-150. [DOI: 10.1016/j.cbd.2016.06.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 04/05/2016] [Accepted: 06/09/2016] [Indexed: 12/28/2022]
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32
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Dreier DA, Loughery JR, Denslow ND, Martyniuk CJ. The influence of breeding strategy, reproductive stage, and tissue type on transcript variability in fish. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2016; 19:151-158. [DOI: 10.1016/j.cbd.2016.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 04/13/2016] [Accepted: 05/30/2016] [Indexed: 10/21/2022]
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Rodenas MC, Cabas I, García-Alcázar A, Meseguer J, Mulero V, García-Ayala A. Selective estrogen receptor modulators differentially alter the immune response of gilthead seabream juveniles. FISH & SHELLFISH IMMUNOLOGY 2016; 52:189-197. [PMID: 27012396 DOI: 10.1016/j.fsi.2016.03.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 03/16/2016] [Accepted: 03/18/2016] [Indexed: 06/05/2023]
Abstract
17α-ethynylestradiol (EE2), a synthetic estrogen used in oral contraceptives and hormone replacement therapy, tamoxifen (Tmx), a selective estrogen-receptor modulator used in hormone replacement therapy, and G1, a G protein-coupled estrogen receptor (GPER) selective agonist, differentially increased the hepatic vitellogenin (vtg) gene expression and altered the immune response in adult gilthead seabream (Sparus aurata L.) males. However, no information exists on the effects of these compounds on the immune response of juveniles. This study aims, for the first time, to investigate the effects of the dietary intake of EE2, Tmx or G1 on the immune response of gilthead seabream juveniles and the capacity of the immune system of the specimens to recover its functionality after ceasing exposures (recovery period). The specimens were immunized with hemocyanin in the presence of aluminium adjuvant 1 (group A) or 120 (group B) days after the treatments ceased (dpt). The results indicate that EE2 and Tmx, but not G1, differentially promoted a transient alteration in hepatic vtg gene expression. Although all three compounds did not affect the production of reactive oxygen intermediates, they inhibited the induction of interleukin-1β (il1b) gene expression after priming. Interestingly, although Tmx increased the percentage of IgM-positive cells in both head kidney and spleen during the recovery period, the antibody response of vaccinated fish varied depending on the compound used and when the immunization was administered. Taken together, our results suggest that these compounds differentially alter the capacity of fish to respond to infection during ontogeny and, more interestingly, that the adaptive immune response remained altered to an extent that depends on the compound.
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Affiliation(s)
- M C Rodenas
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - I Cabas
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - A García-Alcázar
- Centro Oceanográfico de Murcia, Instituto Español de Oceanografía (IEO), Carretera de la Azohía s/n, Puerto de Mazarrón, 30860 Murcia, Spain
| | - J Meseguer
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - V Mulero
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - A García-Ayala
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain.
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34
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Marlatt VL, Sherrard R, Kennedy CJ, Elphick JR, Martyniuk CJ. Application of molecular endpoints in early life stage salmonid environmental biomonitoring. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 173:178-191. [PMID: 26874677 DOI: 10.1016/j.aquatox.2016.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 01/16/2016] [Accepted: 01/20/2016] [Indexed: 06/05/2023]
Abstract
Molecular endpoints can enhance existing whole animal bioassays by more fully characterizing the biological impacts of aquatic pollutants. Laboratory and field studies were used to examine the utility of adopting molecular endpoints for a well-developed in situ early life stage (eyed embryo to onset of swim-up fry) salmonid bioassay to improve diagnostic assessments of water quality in the field. Coastal cutthroat trout (Oncorhynchus clarki clarki) were exposed in the laboratory to the model metal (zinc, 40μg/L) and the polycyclic aromatic hydrocarbon (pyrene, 100μg/L) in water to examine the resulting early life stage salmonid responses. In situ field exposures and bioassays were conducted in parallel to evaluate the water quality of three urban streams in British Columbia (two sites with anthropogenic inputs and one reference site). The endpoints measured in swim-up fry included survival, deformities, growth (weight and length), vitellogenin (vtg) and metallothionein (Mt) protein levels, and hepatic gene expression (e.g., metallothioneins [mta and mtb], endocrine biomarkers [vtg and estrogen receptors, esr] and xenobiotic-metabolizing enzymes [cytochrome P450 1A3, cyp1a3 and glutathione transferases, gstk]). No effects were observed in the zinc treatment, however exposure of swim-up fry to pyrene resulted in decreased survival, deformities and increased estrogen receptor alpha (er1) mRNA levels. In the field exposures, xenobiotic-metabolizing enzymes (cyp1a3, gstk) and zinc transporter (zntBigM103) mRNA were significantly increased in swim-up fry deployed at the sites with more anthropogenic inputs compared to the reference site. Cluster analysis revealed that gene expression profiles in individuals from the streams receiving anthropogenic inputs were more similar to each other than to the reference site. Collectively, the results obtained in this study suggest that molecular endpoints may be useful, and potentially more sensitive, indicators of site-specific contamination in real-world, complex exposure scenarios in addition to whole body morphometric and physiological measures.
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Affiliation(s)
- Vicki L Marlatt
- Department of Biological Sciences, Simon, Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada.
| | - Ryan Sherrard
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - Chris J Kennedy
- Department of Biological Sciences, Simon, Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada; Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada; Nautilus Environmental, 8664 Commerce Court, Imperial Square Lake City, Burnaby, British Columbia V5A 4N71, Canada
| | - James R Elphick
- Nautilus Environmental, 8664 Commerce Court, Imperial Square Lake City, Burnaby, British Columbia V5A 4N71, Canada
| | - Christopher J Martyniuk
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
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35
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Bougas B, Normandeau E, Grasset J, Defo MA, Campbell PGC, Couture P, Bernatchez L. Transcriptional response of yellow perch to changes in ambient metal concentrations-A reciprocal field transplantation experiment. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 173:132-142. [PMID: 26867186 DOI: 10.1016/j.aquatox.2015.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/18/2015] [Accepted: 12/20/2015] [Indexed: 06/05/2023]
Abstract
Recent local adaptation to pollution has been evidenced in several organisms inhabiting environments heavily contaminated by metals. Nevertheless, the molecular mechanisms underlying adaptation to high metal concentrations are poorly understood, especially in fishes. Yellow perch (Perca flavescens) populations from lakes in the mining area of Rouyn-Noranda (QC, Canada) have been faced with metal contamination for about 90 years. Here, we examine gene transcription patterns of fish reciprocally transplanted between a reference and a metal-contaminated lake and also fish caged in their native lake. After four weeks, 111 genes were differentially transcribed in metal-naïve fish transferred to the metal-contaminated lake, revealing a plastic response to metal exposure. Genes involved in the citric cycle and beta-oxidation pathways were under-transcribed, suggesting a potential strategy to mitigate the effects of metal stress by reducing energy turnover. However, metal-contaminated fish transplanted to the reference lake did not show any transcriptomic response, indicating a reduced plastic response capability to sudden reduction in metal concentrations. Moreover, the transcription of other genes, especially ones involved in energy metabolism, was affected by caging. Overall, our results highlight environmental stress response mechanisms in yellow perch at the transcriptomic level and support a rapid adaptive response to metal exposure through genetic assimilation.
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Affiliation(s)
- Bérénice Bougas
- Département de Biologie, Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec (Québec) G1V 0A6, Canada.
| | - Eric Normandeau
- Département de Biologie, Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec (Québec) G1V 0A6, Canada
| | - Julie Grasset
- Institut National de la Recherche Scientifique, Centre Eau Terre Environnement 490, rue de la Couronne, Québec (Québec) G1K 9A9, Canada
| | - Michel A Defo
- Institut National de la Recherche Scientifique, Centre Eau Terre Environnement 490, rue de la Couronne, Québec (Québec) G1K 9A9, Canada
| | - Peter G C Campbell
- Institut National de la Recherche Scientifique, Centre Eau Terre Environnement 490, rue de la Couronne, Québec (Québec) G1K 9A9, Canada
| | - Patrice Couture
- Institut National de la Recherche Scientifique, Centre Eau Terre Environnement 490, rue de la Couronne, Québec (Québec) G1K 9A9, Canada
| | - Louis Bernatchez
- Département de Biologie, Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec (Québec) G1V 0A6, Canada
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Melvin SD, Buck DR, Fabbro LD. Diurnal activity patterns as a sensitive behavioural outcome in fish: effect of short-term exposure to treated sewage and a sub-lethal PPCP mixture. J Appl Toxicol 2016. [DOI: 10.1002/jat.3284] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Steven D. Melvin
- School of Medical and Applied Sciences; CQUniversity; Rockhampton Australia
- Australian Rivers Institute; Griffith University; Southport Australia
| | - David R. Buck
- School of Medical and Applied Sciences; CQUniversity; Rockhampton Australia
| | - Larelle D. Fabbro
- School of Medical and Applied Sciences; CQUniversity; Rockhampton Australia
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37
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Bahamonde PA, Feswick A, Isaacs MA, Munkittrick KR, Martyniuk CJ. Defining the role of omics in assessing ecosystem health: Perspectives from the Canadian environmental monitoring program. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:20-35. [PMID: 26771350 DOI: 10.1002/etc.3218] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 05/16/2015] [Accepted: 08/20/2015] [Indexed: 05/22/2023]
Abstract
Scientific reviews and studies continue to describe omics technologies as the next generation of tools for environmental monitoring, while cautioning that there are limitations and obstacles to overcome. However, omics has not yet transitioned into national environmental monitoring programs designed to assess ecosystem health. Using the example of the Canadian Environmental Effects Monitoring (EEM) program, the authors describe the steps that would be required for omics technologies to be included in such an established program. These steps include baseline collection of omics endpoints across different species and sites to generate a range of what is biologically normal within a particular ecosystem. Natural individual variability in the omes is not adequately characterized and is often not measured in the field, but is a key component to an environmental monitoring program, to determine the critical effect size or action threshold for management. Omics endpoints must develop a level of standardization, consistency, and rigor that will allow interpretation of the relevance of changes across broader scales. To date, population-level consequences of routinely measured endpoints such as reduced gonad size or intersex in fish is not entirely clear, and the significance of genome-wide molecular, proteome, or metabolic changes on organism or population health is further removed from the levels of ecological change traditionally managed. The present review is not intended to dismiss the idea that omics will play a future role in large-scale environmental monitoring studies, but rather outlines the necessary actions for its inclusion in regulatory monitoring programs focused on assessing ecosystem health.
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Affiliation(s)
- Paulina A Bahamonde
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - April Feswick
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - Meghan A Isaacs
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - Kelly R Munkittrick
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
| | - Christopher J Martyniuk
- Canadian Rivers Institute and Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada
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38
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Melvin SD. Short-term exposure to municipal wastewater influences energy, growth, and swimming performance in juvenile Empire Gudgeons (Hypseleotris compressa). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 170:271-278. [PMID: 26073539 DOI: 10.1016/j.aquatox.2015.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 05/28/2015] [Accepted: 06/02/2015] [Indexed: 06/04/2023]
Abstract
Effectively treating domestic wastewater is paramount for preserving the health of aquatic ecosystems. Various technologies exist for wastewater treatment, ranging from simple pond-based systems to advanced filtration, and it is important to evaluate the potential for these different options to produce water that is acceptable for discharge. Sub-lethal responses were therefore assessed in juvenile Empire Gudgeons (Hypseleotris compressa) exposed for a period of two weeks to control, 12.5, 25, 50, and 100% wastewater treated through a multi-stage constructed wetland (CW) treatment system. Effects on basic energy reserves (i.e., lipids and protein), growth and condition, and swimming performance were quantified following exposure. A significant increase in weight and condition was observed in fish exposed to 50 and 100% wastewater dilutions, whereas whole-body lipid content was significantly reduced in these treatments. Maximum swimming velocity increased in a dose-dependent manner amongst treatment groups (although not significantly), whereas angular velocity was significantly reduced in the 50 and 100% dilutions. Results demonstrate that treated domestic wastewater can influence the growth and swimming performance of fish, and that such effects may be related to alterations to primary energy stores. However, studies assessing complex wastewaters present difficulties when it comes to interpreting responses, as many possible factors can contribute towards the observed effects. Future research should address these uncertainties by exploring interaction between nutrients, basic water quality characteristics and relevant contaminant mixtures, for influencing the energetics, growth, and functional performance of aquatic animals.
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Affiliation(s)
- Steven D Melvin
- School of Medical and Applied Sciences, Building 604, CQ University, Bryan Jordan Drive, Gladstone, QLD 4702, Australia.
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39
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Baldigo BP, George SD, Phillips PJ, Hemming JDC, Denslow ND, Kroll KJ. Potential estrogenic effects of wastewaters on gene expression in Pimephales promelas and fish assemblages in streams of southeastern New York. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:2803-2815. [PMID: 26423596 DOI: 10.1002/etc.3120] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 02/10/2015] [Accepted: 06/13/2015] [Indexed: 06/05/2023]
Abstract
Direct linkages between endocrine-disrupting compounds (EDCs) from municipal and industrial wastewaters and impacts on wild fish assemblages are rare. The levels of plasma vitellogenin (Vtg) and Vtg messenger ribonucleic acid (mRNA) in male fathead minnows (Pimephales promelas) exposed to wastewater effluents and dilutions of 17α-ethinylestradiol (EE2), estrogen activity, and fish assemblages in 10 receiving streams were assessed to improve understanding of important interrelations. Results from 4-d laboratory assays indicate that EE2, plasma Vtg concentration, and Vtg gene expression in fathead minnows, and 17β-estradiol equivalents (E2Eq values) were highly related to each other (R(2) = 0.98-1.00). Concentrations of E2Eq in most effluents did not exceed 2.0 ng/L, which was possibly a short-term exposure threshold for Vtg gene expression in male fathead minnows. Plasma Vtg in fathead minnows only increased significantly (up to 1136 μg/mL) in 2 wastewater effluents. Fish assemblages were generally unaffected at 8 of 10 study sites, yet the density and biomass of 79% to 89% of species populations were reduced (63-68% were reduced significantly) in the downstream reach of 1 receiving stream. These results, and moderate to high E2Eq concentrations (up to 16.1 ng/L) observed in effluents during a companion study, suggest that estrogenic wastewaters can potentially affect individual fish, their populations, and entire fish communities in comparable systems across New York, USA.
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Affiliation(s)
- Barry P Baldigo
- New York Water Science Center, US Geological Survey, Troy, New York, USA
| | - Scott D George
- New York Water Science Center, US Geological Survey, Troy, New York, USA
| | - Patrick J Phillips
- New York Water Science Center, US Geological Survey, Troy, New York, USA
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Rodenas MC, Cabas I, Abellán E, Meseguer J, Mulero V, García-Ayala A. Tamoxifen persistently disrupts the humoral adaptive immune response of gilthead seabream (Sparus aurata L.). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2015; 53:283-292. [PMID: 26234710 DOI: 10.1016/j.dci.2015.06.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 06/22/2015] [Accepted: 06/24/2015] [Indexed: 06/04/2023]
Abstract
There is increasing concern about the possible effect of pharmaceutical compounds may have on the fish immune system. Bath exposition of 17α-ethynylestradiol (EE2), a synthetic estrogen used in oral contraceptives, altered the immune response of the gilthead seabream (Sparus aurata L.), a marine hermaphrodite teleost. Tamoxifen (Tmx) is a selective estrogen-receptor modulator used in hormone replacement therapy, the effects of which are unknown in fish immunity. This study aims to investigate the effects of dietary administration of EE2 (5 μg/g food) and Tmx (100 μg/g food) on the immune response of gilthead seabream, and the capacity of the immune system to recover its functionality after a recovery period. The results show for the first time the reversibility of the effect of EE2 and Tmx on the fish immune response. Tmx promoted a transient alteration in hepatic vitellogenin gene expression of a different magnitude to that produced by EE2. Both, EE2 and Tmx inhibited the induction of interleukin-1β gene expression while reversed the inhibition of ROI production in leukocytes following vaccination. However, none of these effects were observed after ceasing EE2 and Tmx exposure. EE2 and Tmx stimulated the antibody response of vaccinated fish although Tmx, but not EE2, altered the antibody response and modulated the percentage of IgM(+) B lymphocytes of vaccinated fish during the recovery phase. Taken together, our results suggest that EE2 and Tmx might alter the capacity of fish to appropriately respond to infection and show that Tmx has a long-lasting effect on humoral adaptive immunity.
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Affiliation(s)
- M C Rodenas
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - I Cabas
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - E Abellán
- Centro Oceanográfico de Murcia, Instituto Español de Oceanografía (IEO), Carretera de la Azohía s/n, Puerto de Mazarrón, 30860 Murcia, Spain
| | - J Meseguer
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - V Mulero
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - A García-Ayala
- Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain.
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41
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Hug C, Zhang X, Guan M, Krauss M, Bloch R, Schulze T, Reinecke T, Hollert H, Brack W. Microbial reporter gene assay as a diagnostic and early warning tool for the detection and characterization of toxic pollution in surface waters. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:2523-2532. [PMID: 26033406 DOI: 10.1002/etc.3083] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 02/13/2015] [Accepted: 05/21/2015] [Indexed: 06/04/2023]
Abstract
Surface water samples constantly receive a vast mixture of micropollutants mainly originating from wastewater treatment plants (WWTPs). High-throughput live cell arrays provide a promising method for the characterization of the effects of chemicals and the associated molecular mechanisms. In the present study, this test system was evaluated for the first time for the characterization of a set of typical surface water extracts receiving effluent from WWTPs. The extracts containing complex mixtures of micropollutants were analyzed for the expression of 90 stress responsive genes in the Escherichia coli reporter gene assay. The most affected pathways and the genes most sensitive to surface water samples suggested prominent stress-responsive pathways for wastewater-impacted surface water, such as oxidative stress, DNA damage, and drug resistance. Samples strongly affecting particular pathways were identified by statistical analysis of gene expression. Transcription data were correlated with contamination data from chemical screening and percentages of wastewater in the samples. Samples with particular effects and outstanding chemical composition were analyzed. For these samples, hypotheses on the alteration of the transcription of genes involved in drug resistance and DNA repair attributable to the presence of pharmaceuticals were drawn.
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Affiliation(s)
- Christine Hug
- Department of Effect-Directed Analysis, UFZ-Helmholtz Centre for Environmental Research, Leipzig, Saxony, Germany
- Institute for Environmental Research, Department of Ecosystem Analyses, RWTH Aachen University, Aachen, Nordrhein-Westfalen, Germany
| | - Xiaowei Zhang
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Jiangsu, People's Republic of China
| | - Miao Guan
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Jiangsu, People's Republic of China
| | - Martin Krauss
- Department of Effect-Directed Analysis, UFZ-Helmholtz Centre for Environmental Research, Leipzig, Saxony, Germany
| | - Robert Bloch
- Department of Effect-Directed Analysis, UFZ-Helmholtz Centre for Environmental Research, Leipzig, Saxony, Germany
| | - Tobias Schulze
- Department of Effect-Directed Analysis, UFZ-Helmholtz Centre for Environmental Research, Leipzig, Saxony, Germany
| | - Tim Reinecke
- Department of Effect-Directed Analysis, UFZ-Helmholtz Centre for Environmental Research, Leipzig, Saxony, Germany
| | - Henner Hollert
- Institute for Environmental Research, Department of Ecosystem Analyses, RWTH Aachen University, Aachen, Nordrhein-Westfalen, Germany
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Jiangsu, People's Republic of China
- College of Resources and Environmental Science, Chongqing University, Chongqing, Chongqing, People's Republic of China
- Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai, Shanghai, People's Republic of China
| | - Werner Brack
- Department of Effect-Directed Analysis, UFZ-Helmholtz Centre for Environmental Research, Leipzig, Saxony, Germany
- Institute for Environmental Research, Department of Ecosystem Analyses, RWTH Aachen University, Aachen, Nordrhein-Westfalen, Germany
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Jeffrey JD, Hasler CT, Chapman JM, Cooke SJ, Suski CD. Linking Landscape-Scale Disturbances to Stress and Condition of Fish: Implications for Restoration and Conservation. Integr Comp Biol 2015; 55:618-30. [PMID: 25931612 DOI: 10.1093/icb/icv022] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Humans have dramatically altered landscapes as a result of urban and agricultural development, which has led to decreases in the quality and quantity of habitats for animals. This is particularly the case for freshwater fish that reside in fluvial systems, given that changes to adjacent lands have direct impacts on the structure and function of watersheds. Because choices of habitat have physiological consequences for organisms, animals that occupy sub-optimal habitats may experience increased expenditure of energy or homeostatic overload that can cause negative outcomes for individuals and populations. With the imperiled and threatened status of many freshwater fish, there is a critical need to define relationships between land use, quality of the habitat, and physiological performance for resident fish as an aid to restoration and management. Here, we synthesize existing literature to relate variation in land use at the scale of watersheds to the physiological status of resident fish. This examination revealed that landscape-level disturbances can influence a host of physiological properties of resident fishes, ranging from cellular and genomic levels to the hormonal and whole-animal levels. More importantly, these physiological responses have been integrated into traditional field-based monitoring protocols to provide a mechanistic understanding of how organisms interact with their environment, and to enhance restoration. We also generated a conceptual model that provides a basis for relating landscape-level changes to physiological responses in fish. We conclude that physiological sampling of resident fish has the potential to assess the effects of landscape-scale disturbances on freshwater fish and to enhance restoration and conservation.
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Affiliation(s)
- Jennifer D Jeffrey
- *Department of Natural Resources and Environmental Sciences, University of Illinois, W-503 Turner Hall, 1102 S Goodwin Avenue, Urbana, IL 61801, USA; Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6; Institute of Environmental Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6
| | - Caleb T Hasler
- *Department of Natural Resources and Environmental Sciences, University of Illinois, W-503 Turner Hall, 1102 S Goodwin Avenue, Urbana, IL 61801, USA; Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6; Institute of Environmental Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6
| | - Jacqueline M Chapman
- *Department of Natural Resources and Environmental Sciences, University of Illinois, W-503 Turner Hall, 1102 S Goodwin Avenue, Urbana, IL 61801, USA; Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6; Institute of Environmental Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6
| | - Steven J Cooke
- *Department of Natural Resources and Environmental Sciences, University of Illinois, W-503 Turner Hall, 1102 S Goodwin Avenue, Urbana, IL 61801, USA; Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6; Institute of Environmental Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6 *Department of Natural Resources and Environmental Sciences, University of Illinois, W-503 Turner Hall, 1102 S Goodwin Avenue, Urbana, IL 61801, USA; Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6; Institute of Environmental Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6
| | - Cory D Suski
- *Department of Natural Resources and Environmental Sciences, University of Illinois, W-503 Turner Hall, 1102 S Goodwin Avenue, Urbana, IL 61801, USA; Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6; Institute of Environmental Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6
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Baker BH, Martinovic-Weigelt D, Ferrey M, Barber LB, Writer JH, Rosenberry DO, Kiesling RL, Lundy JR, Schoenfuss HL. Identifying non-point sources of endocrine active compounds and their biological impacts in freshwater lakes. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2014; 67:374-388. [PMID: 24974177 DOI: 10.1007/s00244-014-0052-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 05/20/2014] [Indexed: 06/03/2023]
Abstract
Contaminants of emerging concern, particularly endocrine active compounds (EACs), have been identified as a threat to aquatic wildlife. However, little is known about the impact of EACs on lakes through groundwater from onsite wastewater treatment systems (OWTS). This study aims to identify specific contributions of OWTS to Sullivan Lake, Minnesota, USA. Lake hydrology, water chemistry, caged bluegill sunfish (Lepomis macrochirus), and larval fathead minnow (Pimephales promelas) exposures were used to assess whether EACs entered the lake through OWTS inflow and the resultant biological impact on fish. Study areas included two OWTS-influenced near-shore sites with native bluegill spawning habitats and two in-lake control sites without nearby EAC sources. Caged bluegill sunfish were analyzed for plasma vitellogenin concentrations, organosomatic indices, and histological pathologies. Surface and porewater was collected from each site and analyzed for EACs. Porewater was also collected for laboratory exposure of larval fathead minnow, before analysis of predator escape performance and gene expression profiles. Chemical analysis showed EACs present at low concentrations at each study site, whereas discrete variations were reported between sites and between summer and fall samplings. Body condition index and liver vacuolization of sunfish were found to differ among study sites as did gene expression in exposed larval fathead minnows. Interestingly, biological exposure data and water chemistry did not match. Therefore, although results highlight the potential impacts of seepage from OWTS, further investigation of mixture effects and life history factor as well as chemical fate is warranted.
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Affiliation(s)
- Beth H Baker
- St. Cloud State University, WSB-273, 720 4th Avenue South, St. Cloud, MN, 56301, USA,
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44
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Christiansen HE, Mehinto AC, Yu F, Perry RW, Denslow ND, Maule AG, Mesa MG. Correlation of gene expression and contaminant concentrations in wild largescale suckers: a field-based study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 484:379-389. [PMID: 24050789 DOI: 10.1016/j.scitotenv.2013.08.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 08/08/2013] [Accepted: 08/12/2013] [Indexed: 06/02/2023]
Abstract
Toxic compounds such as organochlorine pesticides (OCs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ether flame retardants (PBDEs) have been detected in fish, birds, and aquatic mammals that live in the Columbia River or use food resources from within the river. We developed a custom microarray for largescale suckers (Catostomus macrocheilus) and used it to investigate the molecular effects of contaminant exposure on wild fish in the Columbia River. Using Significance Analysis of Microarrays (SAM) we identified 72 probes representing 69 unique genes with expression patterns that correlated with hepatic tissue levels of OCs, PCBs, or PBDEs. These genes were involved in many biological processes previously shown to respond to contaminant exposure, including drug and lipid metabolism, apoptosis, cellular transport, oxidative stress, and cellular chaperone function. The relation between gene expression and contaminant concentration suggests that these genes may respond to environmental contaminant exposure and are promising candidates for further field and laboratory studies to develop biomarkers for monitoring exposure of wild fish to contaminant mixtures found in the Columbia River Basin. The array developed in this study could also be a useful tool for studies involving endangered sucker species and other sucker species used in contaminant research.
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Affiliation(s)
- Helena E Christiansen
- U.S. Geological Survey, Western Fisheries Research Center, Columbia River Research Laboratory, 5501 Cook-Underwood Road, Cook, WA 98605, USA.
| | - Alvine C Mehinto
- University of Florida, Center for Environmental and Human Toxicology, Department of Physiological Sciences, 2187 Mowry Road, Gainesville, FL 32611, USA.
| | - Fahong Yu
- Interdisciplinary Center for Biotechnology Research, 2033 Mowry Road, P.O. Box 103622, Gainesville, FL 32610, USA.
| | - Russell W Perry
- U.S. Geological Survey, Western Fisheries Research Center, Columbia River Research Laboratory, 5501 Cook-Underwood Road, Cook, WA 98605, USA.
| | - Nancy D Denslow
- University of Florida, Center for Environmental and Human Toxicology, Department of Physiological Sciences, 2187 Mowry Road, Gainesville, FL 32611, USA.
| | - Alec G Maule
- U.S. Geological Survey, Western Fisheries Research Center, Columbia River Research Laboratory, 5501 Cook-Underwood Road, Cook, WA 98605, USA.
| | - Matthew G Mesa
- U.S. Geological Survey, Western Fisheries Research Center, Columbia River Research Laboratory, 5501 Cook-Underwood Road, Cook, WA 98605, USA.
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45
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Martinović-Weigelt D, Mehinto AC, Ankley GT, Denslow ND, Barber LB, Lee KE, King RJ, Schoenfuss HL, Schroeder AL, Villeneuve DL. Transcriptomic effects-based monitoring for endocrine active chemicals: assessing relative contribution of treated wastewater to downstream pollution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:2385-2394. [PMID: 24409827 DOI: 10.1021/es404027n] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The present study investigated whether a combination of targeted analytical chemistry information with unsupervised, data-rich biological methodology (i.e., transcriptomics) could be utilized to evaluate relative contributions of wastewater treatment plant (WWTP) effluents to biological effects. The effects of WWTP effluents on fish exposed to ambient, receiving waters were studied at three locations with distinct WWTP and watershed characteristics. At each location, 4 d exposures of male fathead minnows to the WWTP effluent and upstream and downstream ambient waters were conducted. Transcriptomic analyses were performed on livers using 15,000 feature microarrays, followed by a canonical pathway and gene set enrichment analyses. Enrichment of gene sets indicative of teleost brain-pituitary-gonadal-hepatic (BPGH) axis function indicated that WWTPs serve as an important source of endocrine active chemicals (EACs) that affect the BPGH axis (e.g., cholesterol and steroid metabolism were altered). The results indicated that transcriptomics may even pinpoint pertinent adverse outcomes (i.e., liver vacuolization) and groups of chemicals that preselected chemical analytes may miss. Transcriptomic Effects-Based monitoring was capable of distinguishing sites, and it reflected chemical pollution gradients, thus holding promise for assessment of relative contributions of point sources to pollution and the efficacy of pollution remediation.
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Affiliation(s)
- Dalma Martinović-Weigelt
- University of St. Thomas , Department of Biology, Mail OWS 390, 2115 Summit Ave., Saint Paul, Minnesota 55105, United States
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46
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Berninger JP, Martinović-Weigelt D, Garcia-Reyero N, Escalon L, Perkins EJ, Ankley GT, Villeneuve DL. Using transcriptomic tools to evaluate biological effects across effluent gradients at a diverse set of study sites in Minnesota, USA. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:2404-2412. [PMID: 24433150 DOI: 10.1021/es4040254] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The aim of this study was to explore the utility of "omics" approaches in monitoring aquatic environments where complex, often unknown stressors make chemical-specific risk assessment untenable. We examined changes in the fathead minnow (Pimephales promelas) ovarian transcriptome following 4-day exposures conducted at three sites in Minnesota (MN, USA). Within each site, fish were exposed to water from three locations along a spatial gradient relative to a wastewater treatment plant (WWTP) discharge. After exposure, site-specific impacts on gene expression in ovaries were assessed. Using an intragradient point of comparison, biological responses specifically associated with the WWTP effluent were identified using functional enrichment analyses. Fish exposed to water from locations downstream of the effluent discharges exhibited many transcriptomic responses in common with those exposed to the effluent, indicating that effects of the discharge do not fully dissipate downstream. Functional analyses showed a range of biological pathways impacted through effluent exposure at all three sites. Several of those impacted pathways at each site could be linked to potential adverse reproductive outcomes associated with the hypothalamic-pituitary-gonadal (HPG) axis in female fathead minnows, specifically signaling pathways associated with oocyte meiosis, TGF-beta signaling, gonadotropin-releasing hormone (GnRH) and epidermal growth factor receptor family (ErbB), and gene sets associated with cyclin B-1 and metalloproteinase. The utility of this approach comes from the ability to identify biological responses to pollutant exposure, particularly those that can be tied to adverse outcomes at the population level and those that identify molecular targets for future studies.
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Affiliation(s)
- Jason P Berninger
- National Research Council, U.S. Environmental Protection Agency , 6201 Congdon Blvd., Duluth, Minnesota 55804, United States
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47
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Hasenbein M, Werner I, Deanovic LA, Geist J, Fritsch EB, Javidmehr A, Foe C, Fangue NA, Connon RE. Transcriptomic profiling permits the identification of pollutant sources and effects in ambient water samples. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 468-469:688-698. [PMID: 24061060 DOI: 10.1016/j.scitotenv.2013.08.081] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 08/22/2013] [Accepted: 08/24/2013] [Indexed: 06/02/2023]
Abstract
Contaminant exposure is one possible contributor to population declines of endangered fish species in the Sacramento-San Joaquin Estuary, California, including the endangered delta smelt (Hypomesus transpacificus). Herein we investigated transcriptional responses in larval delta smelt resulting from exposure to water samples collected at the Department of Water Resources Field Station at Hood, a site of concern, situated upstream of known delta smelt habitat and spawning sites and downstream of the Sacramento Regional Wastewater Treatment Plant (SRWTP). Microarray assessments indicate impacts on energy metabolism, DNA repair mechanisms and RNA processing, the immune system, development and muscle function. Transcription responses of fish exposed to water samples from Hood were compared with exposures to 9% effluent samples from SRWTP, water from the Sacramento River at Garcia Bend (SRGB), upstream of the effluent discharge, and SRGB water spiked with 2mg/L total ammonium (9% effluent equivalent). Results indicate that transcriptomic profiles from Hood are similar to 9% SRWTP effluent and ammonium spiked SRGB water, but significantly different from SRGB. SRGB samples however were also significantly different from laboratory controls, suggesting that SRWTP effluent is not solely responsible for the responses determined at Hood, that ammonium exposure likely enhances the effect of multiple-contaminant exposures, and that the observed mortality at Hood is due to the combination of both effluent discharge and contaminants arising from upstream of the tested sites.
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Affiliation(s)
- Matthias Hasenbein
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA; Aquatic Systems Biology Unit, Department of Ecology and Ecosystem Management, Technische Universität München, Mühlenweg 22, D-85354 Freising, Germany; Department of Wildlife, Fish & Conservation Biology, University of California, Davis, CA 95616, USA
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48
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Wang R, Liu J, Yang X, Lin C, Huang B, Jin W, Pan X. Biological response of high-back crucian carp (Carassius auratus) during different life stages to wastewater treatment plant effluent. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:8612-8620. [PMID: 23695857 DOI: 10.1007/s11356-013-1817-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 05/09/2013] [Indexed: 06/02/2023]
Abstract
This study presents the adverse effects of endocrine disrupting chemicals (EDCs) in effluent of wastewater treatment plants (WwTPs) on fish health. A study of chronic exposure to WwTPs effluent for 10 months was undertaken in high-back crucian carp (Carassius auratus) during different life stages, covering early-life-stage (ELS), prespawning period, and postspawning period. Condition factor (CF), gonadosomatic index (GSI), hepatosomatic index (HSI), and plasma vitellogenin (VTG) levels were employed as indicators to assess biological effects of effluent on this gynogenesis species. Meanwhile, some high-back crucian carp were caged in Demonstration Base of Biological Purification for Filter-feeding Fish (hereinafter, Demonstration Base), as WwTPs effluent exposure controls. In the meantime, a depuration study was carried out to determine whether or not the estrogenic effects caused by effluent exposure could be reduced after moving fish into EDCs-free water. CF, HSI, GSI, and plasma Vtg levels of high-back crucian carp caged in Demonstration Base were generally in accordance with seasonal change. Effluent exposure inhibited gonadal growth, reducing GSI in ELS while increasing it around spawning, sharpened liver burdens, increasing HSI, and induced abnormal Vtg expression in juvenile high-back crucian carp, augmenting Vtg concentrations in plasma. Around spawning period, Vtg in high-back crucian carp were mainly induced by endogenous estrogens, and EDCs in effluent had less influence on them. Staying in EDCs-free water for 30 days made high-back crucian carp recover from effects of previous effluent exposure, relieving inhibition of gonadal development and hypertrophy of liver as well as reducing Vtg induced by EDCs in effluent. The results revealed that high-back crucian carp in ELS are more sensitive to WwTPs effluent exposure. Additionally, the depuration study showed a clearance of the estrogenic effects caused by effluent.
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Affiliation(s)
- Renmin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Chenggong, Yunnan, 650500, People's Republic of China
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49
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Harding LB, Schultz IR, Goetz GW, Luckenbach JA, Young G, Goetz FW, Swanson P. High-throughput sequencing and pathway analysis reveal alteration of the pituitary transcriptome by 17α-ethynylestradiol (EE2) in female coho salmon, Oncorhynchus kisutch. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 142-143:146-163. [PMID: 24007788 DOI: 10.1016/j.aquatox.2013.07.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 07/26/2013] [Accepted: 07/31/2013] [Indexed: 06/02/2023]
Abstract
Considerable research has been done on the effects of endocrine disrupting chemicals (EDCs) on reproduction and gene expression in the brain, liver and gonads of teleost fish, but information on impacts to the pituitary gland are still limited despite its central role in regulating reproduction. The aim of this study was to further our understanding of the potential effects of natural and synthetic estrogens on the brain-pituitary-gonad axis in fish by determining the effects of 17α-ethynylestradiol (EE2) on the pituitary transcriptome. We exposed sub-adult coho salmon (Oncorhynchus kisutch) to 0 or 12 ng EE2/L for up to 6 weeks and effects on the pituitary transcriptome of females were assessed using high-throughput Illumina(®) sequencing, RNA-Seq and pathway analysis. After 1 or 6 weeks, 218 and 670 contiguous sequences (contigs) respectively, were differentially expressed in pituitaries of EE2-exposed fish relative to control. Two of the most highly up- and down-regulated contigs were luteinizing hormone β subunit (241-fold and 395-fold at 1 and 6 weeks, respectively) and follicle-stimulating hormone β subunit (-3.4-fold at 6 weeks). Additional contigs related to gonadotropin synthesis and release were differentially expressed in EE2-exposed fish relative to controls. These included contigs involved in gonadotropin releasing hormone (GNRH) and transforming growth factor-β signaling. There was an over-representation of significantly affected contigs in 33 and 18 canonical pathways at 1 and 6 weeks, respectively, including circadian rhythm signaling, calcium signaling, peroxisome proliferator-activated receptor (PPAR) signaling, PPARα/retinoid x receptor α activation, and netrin signaling. Network analysis identified potential interactions between genes involved in circadian rhythm and GNRH signaling, suggesting possible effects of EE2 on timing of reproductive events.
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Affiliation(s)
- Louisa B Harding
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA 98195, USA
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50
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Vidal-Dorsch DE, Colli-Dula RC, Bay SM, Greenstein DJ, Wiborg L, Petschauer D, Denslow ND. Gene expression of fathead minnows (Pimephales promelas) exposed to two types of treated municipal wastewater effluents. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:11268-11277. [PMID: 23919544 DOI: 10.1021/es401942n] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Contaminants of emerging concern (CECs) in treated municipal effluents have the potential to adversely impact exposed organisms prompting elevated public concern. Using transcriptomic tools, we investigated changes in gene expression and cellular pathways in the liver of male fathead minnows (Pimephales promelas) exposed to 5% concentrations of full secondary-treated (HTP) or advanced primary-treated (PL) municipal wastewater effluents containing CECs. Gene expression changes were associated with apical end points (plasma vitellogenin and changes in secondary sexual characteristics). Of 32 effluent CECs analyzed, 28 were detected including pharmaceuticals, personal care products, hormones, and industrial compounds. Exposure to both effluents produced significantly higher levels of plasma VTG and changes in secondary sexual characteristics (e.g., ovipositor development). Transcript patterns differed between effluents, with <10% agreement in the detected response (e.g., altered production of transcripts involved in xenobiotic detoxification, oxidative stress, and apoptosis were observed following exposure to both effluents). Exposure to PL effluent caused changes in transcription of genes involved in metabolic pathways (e.g., lipid transport and steroid metabolism). Exposure to HTP effluent affected transcripts involved in signaling pathways (e.g., focal adhesion assembly and extracellular matrix). The results suggest a potential association between some transcriptomic changes and physiological responses following effluent exposure. This study identified responses in pathways not previously implicated in exposure to complex chemical mixtures containing CECs, which are consistent with effluent exposure (e.g., oxidative stress) in addition to other pathway responses specific to the effluent type.
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Affiliation(s)
- Doris E Vidal-Dorsch
- Southern California Coastal Water Research Project , Costa Mesa, California 92626, United States
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