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Monteiro V, Dias da Silva D, Martins M, Guedes de Pinho P, Pinto J. Metabolomics perspectives of the ecotoxicological risks of polycyclic aromatic hydrocarbons: A scoping review. ENVIRONMENTAL RESEARCH 2024; 249:118394. [PMID: 38307181 DOI: 10.1016/j.envres.2024.118394] [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: 11/13/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/04/2024]
Abstract
Polycyclic Aromatic Hydrocarbons (PAHs) represent persistent environmental pollutants ubiquitously distributed in the environment. Their presence alongside various other contaminants gives rise to intricate interactions, culminating in profound deleterious consequences. The combination effects of different PAH mixtures on biota remains a relatively unexplored domain. Recent studies have harnessed the exceptional sensitivity of metabolomic techniques to unveil the significant ecotoxicological perils of PAH pollution confronting both human populations and ecosystems. This article furnishes a comprehensive overview of current literature focused on the metabolic repercussions stemming from exposure to complex mixtures of PAHs or PAH-pollution sources using metabolomics approaches. These insights are obtained through a wide range of models, including in vitro assessments, animal studies, investigations on human subjects, botanical specimens, and soil environments. The findings underscore that PAH mixtures induce cellular stress responses and systemic effects, leading to metabolic dysregulations in amino acids, carbohydrates, lipids, and other key metabolites (e.g., organic acids, purines), with specific variations observed based on the organism and PAH compounds involved. Additionally, the ecological consequences of PAH pollutants on plant and soil microbial responses are emphasized, revealing significant changes in stress-related metabolites and nutrient cycling in soil ecosystems. The complex interplay of various PAHs and their metabolic effects on several models, as elucidated through metabolomics, highlight the urgency of further research and the need for comprehensive strategies to mitigate the risks posed by these widespread environmental pollutants.
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Affiliation(s)
- Vânia Monteiro
- Associate Laboratory i4HB ‒ Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal; UCIBIO ‒ Applied Molecular Biosciences Unit, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.
| | - Diana Dias da Silva
- Associate Laboratory i4HB ‒ Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal; UCIBIO ‒ Applied Molecular Biosciences Unit, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; 1H-TOXRUN - One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU CRL, Rua Central de Gandra, 4585-116 Gandra, Portugal
| | - Marta Martins
- MARE ‒ Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network Associated Laboratory, Department of Sciences and Environmental Engineering, NOVA School of Science and Technology (FCT NOVA), NOVA University of Lisbon, 2829-516 Caparica, Portugal
| | - Paula Guedes de Pinho
- Associate Laboratory i4HB ‒ Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal; UCIBIO ‒ Applied Molecular Biosciences Unit, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Joana Pinto
- Associate Laboratory i4HB ‒ Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal; UCIBIO ‒ Applied Molecular Biosciences Unit, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.
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Parkerton T, Boufadel M, Nordtug T, Mitchelmore C, Colvin K, Wetzel D, Barron MG, Bragin GE, de Jourdan B, Loughery J. Recommendations for advancing media preparation methods used to assess aquatic hazards of oils and spill response agents. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 259:106518. [PMID: 37030101 PMCID: PMC10519191 DOI: 10.1016/j.aquatox.2023.106518] [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: 11/04/2022] [Revised: 03/15/2023] [Accepted: 04/02/2023] [Indexed: 05/15/2023]
Abstract
Laboratory preparation of aqueous test media is a critical step in developing toxicity information needed for oil spill response decision-making. Multiple methods have been used to prepare physically and chemically dispersed oils which influence test outcome, interpretation, and utility for hazard assessment and modeling. This paper aims to review media preparation strategies, highlight advantages and limitations, provide recommendations for improvement, and promote the standardization of methods to better inform assessment and modeling. A benefit of media preparation methods for oil that rely on low to moderate mixing energy coupled with a variable dilution design is that the dissolved oil composition of the water accommodation fraction (WAF) stock is consistent across diluted treatments. Further, analyses that support exposure confirmation maybe reduced and reflect dissolved oil exposures that are bioavailable and amenable to toxicity modeling. Variable loading tests provide a range of dissolved oil compositions that require analytical verification at each oil loading. Regardless of test design, a preliminary study is recommended to optimize WAF mixing and settling times to achieve equilibrium between oil and test media. Variable dilution tests involving chemical dispersants (CEWAF) or high energy mixing (HEWAF) can increase dissolved oil exposures in treatment dilutions due to droplet dissolution when compared to WAFs. In contrast, HEWAF/CEWAFs generated using variable oil loadings are expected to provide dissolved oil exposures more comparable to WAFs. Preparation methods that provide droplet oil exposures should be environmentally relevant and informed by oil droplet concentrations, compositions, sizes, and exposure durations characteristic of field spill scenarios. Oil droplet generators and passive dosing techniques offer advantages for delivering controlled constant or dynamic dissolved exposures and larger volumes of test media for toxicity testing. Adoption of proposed guidance for improving media preparation methods will provide greater comparability and utility of toxicity testing in oil spill response and assessment.
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Affiliation(s)
- Thomas Parkerton
- EnviSci Consulting, LLC, 5900 Balcones Dr, Suite 100, Austin, TX 78731, United States.
| | - Michel Boufadel
- Center for Natural Resources, Dept. of Civil and Environmental Engineering, New Jersey Institute of Technology, 323 MLK Blvd., Newark, NJ, United States.
| | - Trond Nordtug
- SINTEF Ocean AS, P.O. box 4762, Torgarden, Trondheim NO-7465, Norway.
| | - Carys Mitchelmore
- University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, 146 Williams Street, Solomons, MD, United States.
| | - Kat Colvin
- College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom.
| | - Dana Wetzel
- Environmental Laboratory of Forensics, Mote Marine Laboratory, 1600 Ken Thompson Parkway, Sarasota, FL, United States.
| | - Mace G Barron
- Office of Research and Development, U.S. Environmental Protection Agency, Gulf Breeze, FL 32561, United States.
| | - Gail E Bragin
- ExxonMobil Biomedical Sciences, Inc., 1545 US Highway 22 East, Annandale, NJ 08801, United States.
| | - Benjamin de Jourdan
- Huntsman Marine Science Centre, 1 Lower Campus Rd, St. Andrews, St. Andrews, New Brunswick E5B 2L7, Canada.
| | - Jennifer Loughery
- Huntsman Marine Science Centre, 1 Lower Campus Rd, St. Andrews, St. Andrews, New Brunswick E5B 2L7, Canada.
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Defo MA, Mercier L, Beauvais C, Brua RB, Tétreault G, Fontaine A, Couture P, Verreault J, Houde M. Time-dependent biological responses of juvenile yellow perch (Perca flavescens) exposed in situ to a major urban effluent. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 222:112483. [PMID: 34237640 DOI: 10.1016/j.ecoenv.2021.112483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Municipal wastewater treatment plant (WWTP) effluents are significant sources of organic and inorganic pollutants to aquatic ecosystems. Several studies have shown that the health of aquatic organisms can be adversely impacted following exposure to these complex chemical mixtures. The objective of this study was to examine the effects of in situ exposure in the St. Lawrence River (QC, Canada) of juvenile yellow perch (Perca flavescens) to a major WWTP effluent. Perch were caged at a reference site in the St. Lawrence River and downstream of a WWTP effluent-influenced site for one, three, and six weeks. Fish kept in controlled laboratory setting were also examined at the beginning of the experiment to evaluate the potential effect of caging on fish. Liver metabolites and gill oxidative stress biomarkers as well as body condition of perch were investigated at four time points (zero, one, three, and six weeks). Nitrogen (δ15N) and carbon (δ13C) stable isotopes as well as tissue concentrations of halogenated flame retardants and trace metals were also analyzed. Results indicated that body condition of perch caged in the effluent increased after three and six weeks of exposure compared to that of reference fish. Perch caged at the WWTP effluent-influenced site also had higher muscle δ13C and slightly depleted muscle δ15N after three and six weeks of exposure, suggesting differences in sewage-derived nutrient assimilation between sites. Concentrations of Σ34 polybrominated diphenyl ether (PBDE) were 2-fold greater in perch exposed downstream of the WWTP compared to those caged at the reference site. Metal concentrations in kidney of perch after three weeks of exposure were significantly lower at the effluent-influenced site. Kidney concentrations of Cd, Cu, Se, As, Zn and Fe were, however, higher after six weeks of exposure, supporting that metal accumulation is time- and element-specific. The metabolomes of perch from the effluent-influenced and reference sites were similar, but were distinct from the laboratory control fish, suggesting a caging effect on fish. Seven liver metabolites (glucose, malate, fumarate, glutamate, creatinine, histamine, and oxypurinol) were significantly more abundant in perch from cages than in the laboratory control perch. The combination of metabolomics and physiological variables provides a powerful tool to improve our understanding of the mechanisms of action of complex environmental pollutant mixtures in wild fish.
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Affiliation(s)
- Michel A Defo
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, 105 McGill St, Montreal, QC H2Y 2E7, Canada.
| | - Laurie Mercier
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, 105 McGill St, Montreal, QC H2Y 2E7, Canada
| | - Conrad Beauvais
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, 105 McGill St, Montreal, QC H2Y 2E7, Canada
| | - Robert B Brua
- Watershed Hydrology and Ecology Research Division, Environment and Climate Change Canada, 11 Innovation Blvd, Saskatoon, SK S7N 3H5, Canada
| | - Gerald Tétreault
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, 867 Lakeshore Rd, Burlington, ON L7S 1A1, Canada
| | - Anthony Fontaine
- Institut national de la recherche scientifique (INRS), Centre Eau Terre Environnement, 490 de la Couronne, Québec, QC G1K 9A9, Canada
| | - Patrice Couture
- Institut national de la recherche scientifique (INRS), Centre Eau Terre Environnement, 490 de la Couronne, Québec, QC G1K 9A9, Canada
| | - Jonathan Verreault
- Centre de recherche en toxicologie de l'environnement (TOXEN), Département des sciences biologiques, Université du Québec à Montréal, C.P. 8888, Succursale Centre-ville, Montréal, QC H3C 3P8, Canada
| | - Magali Houde
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, 105 McGill St, Montreal, QC H2Y 2E7, Canada
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Long SM, Tull DL, De Souza DP, Kouremenos KA, Dayalan S, McConville MJ, Hassell KL, Pettigrove VJ, Gagnon MM. Metabolomics Provide Sensitive Insights into the Impacts of Low Level Environmental Contamination on Fish Health-A Pilot Study. Metabolites 2020; 10:metabo10010024. [PMID: 31935843 PMCID: PMC7022837 DOI: 10.3390/metabo10010024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/23/2019] [Accepted: 01/02/2020] [Indexed: 12/18/2022] Open
Abstract
This exploratory study aims to investigate the health of sand flathead (Platycephalus bassensis) sampled from five sites in Port Phillip Bay, Australia using gas chromatography-mass spectrometry (GC-MS) metabolomics approaches. Three of the sites were the recipients of industrial, agricultural, and urban run-off and were considered urban sites, while the remaining two sites were remote from contaminant inputs, and hence classed as rural sites. Morphological parameters as well as polar and free fatty acid metabolites were used to investigate inter-site differences in fish health. Significant differences in liver somatic index (LSI) and metabolite abundance were observed between the urban and rural sites. Differences included higher LSI, an increased abundance of amino acids and energy metabolites, and reduced abundance of free fatty acids at the urban sites compared to the rural sites. These differences might be related to the additional energy requirements needed to cope with low-level contaminant exposure through energy demanding processes such as detoxification and antioxidant responses as well as differences in diet between the sites. In this study, we demonstrate that metabolomics approaches can offer a greater level of sensitivity compared to traditional parameters such as physiological parameters or biochemical markers of fish health, most of which showed no or little inter-site differences in the present study. Moreover, the metabolite responses are more informative than traditional biomarkers in terms of biological significance as disturbances in specific metabolic pathways can be identified.
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Affiliation(s)
- Sara M. Long
- Centre for Aquatic Pollution Identification and Management (CAPIM), Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Road, Parkville, VIC 3010, Australia
- Aquatic Environmental Stress (AQUEST) Research Group, School of Science, RMIT University, PO Box 71, Bundoora, VIC 3083, Australia; (K.L.H.); (V.J.P.)
- Correspondence: ; Tel.: +61-410-734-627
| | - Dedreia L. Tull
- Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Road, Melbourne, VIC 3010, Australia; (D.L.T.); (D.P.D.S.); (K.A.K.); (S.D.); (M.J.M.)
| | - David P. De Souza
- Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Road, Melbourne, VIC 3010, Australia; (D.L.T.); (D.P.D.S.); (K.A.K.); (S.D.); (M.J.M.)
| | - Konstantinos A. Kouremenos
- Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Road, Melbourne, VIC 3010, Australia; (D.L.T.); (D.P.D.S.); (K.A.K.); (S.D.); (M.J.M.)
| | - Saravanan Dayalan
- Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Road, Melbourne, VIC 3010, Australia; (D.L.T.); (D.P.D.S.); (K.A.K.); (S.D.); (M.J.M.)
| | - Malcolm J. McConville
- Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Road, Melbourne, VIC 3010, Australia; (D.L.T.); (D.P.D.S.); (K.A.K.); (S.D.); (M.J.M.)
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Road, Parkville, VIC 3010, Australia
| | - Kathryn L. Hassell
- Aquatic Environmental Stress (AQUEST) Research Group, School of Science, RMIT University, PO Box 71, Bundoora, VIC 3083, Australia; (K.L.H.); (V.J.P.)
- Centre for Aquatic Pollution Identification and Management (CAPIM), The University of Melbourne, Parkville, VIC 3010, Australia
| | - Vincent J. Pettigrove
- Aquatic Environmental Stress (AQUEST) Research Group, School of Science, RMIT University, PO Box 71, Bundoora, VIC 3083, Australia; (K.L.H.); (V.J.P.)
- Centre for Aquatic Pollution Identification and Management (CAPIM), The University of Melbourne, Parkville, VIC 3010, Australia
| | - Marthe Monique Gagnon
- School of Molecular and Life Sciences, Curtin University, Bentley, WA 6102, Australia;
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Hansen BH, Parkerton T, Nordtug T, Størseth TR, Redman A. Modeling the toxicity of dissolved crude oil exposures to characterize the sensitivity of cod (Gadus morhua) larvae and role of individual and unresolved hydrocarbons. MARINE POLLUTION BULLETIN 2019; 138:286-294. [PMID: 30660275 DOI: 10.1016/j.marpolbul.2018.10.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 09/03/2018] [Accepted: 10/31/2018] [Indexed: 06/09/2023]
Abstract
Toxicity of weathered oil was investigated using Atlantic cod (Gadus morhua) larvae. A novel exposure system was applied to differentiate effects associated with dissolved and droplet oil with and without dispersant. After a 4-day exposure and subsequent 4-day recovery period, survival and growth were determined. Analytical data characterizing test oil composition included polyaromatic hydrocarbons (PAH) based on GC/MS and unresolved hydrocarbon classes obtained by two-dimensional chromatography coupled with flame ionization detection was used as input to an oil solubility model to calculate toxic units (TUs) of dissolved PAHs and whole oil, respectively. Critical target lipid body burdens derived from modeling characterizing the sensitivity of effect endpoints investigated were consistent across treatments and within the range previously reported for pelagic species. Individually measured PAHs captured only 3-11% of the TUs associated with the whole oil highlighting the limitations of traditional total PAH exposure metrics for expressing oil toxicity data.
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Affiliation(s)
| | | | - Trond Nordtug
- SINTEF Ocean AS, Environment and New Resources, Trondheim, Norway
| | - Trond R Størseth
- SINTEF Ocean AS, Environment and New Resources, Trondheim, Norway
| | - Aaron Redman
- ExxonMobil Petroleum and Chemical, Machelen, Belgium
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Bembenek Bailey SA, Niemuth JN, McClellan-Green PD, Godfrey MH, Harms CA, Stoskopf MK. 1H-NMR metabolomic study of whole blood from hatchling loggerhead sea turtles ( Caretta caretta) exposed to crude oil and/or Corexit. ROYAL SOCIETY OPEN SCIENCE 2017; 4:171433. [PMID: 29291126 PMCID: PMC5717701 DOI: 10.1098/rsos.171433] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 10/24/2017] [Indexed: 06/07/2023]
Abstract
We used proton nuclear magnetic resonance spectroscopy (1H-NMR) to evaluate metabolic impacts of environmentally relevant crude oil and Corexit exposures on the physiology of hatchling loggerhead sea turtles (Caretta caretta). Sample extraction and data acquisition methods for very small volume whole blood samples and sources of variation between individual hatchlings were assessed. Sixteen unclotted, whole blood samples were obtained from 7-day-old hatchlings after a 4-day cutaneous exposure to either control seawater, crude oil, Corexit 9500A or a combination of crude oil and Corexit 9500A. After extraction, one- and two-dimensional 1H-NMR spectra of the samples were obtained, and 17 metabolites were identified and confirmed in the whole blood spectra. Variation among samples due to the concentrations of metabolites 3-hydroxybutyrate, lactate, trimethylamine oxide and propylene glycol did not statistically correlate with treatment group. However, the characterization of the hatchling loggerhead whole blood metabolome provides a foundation for future metabolomic research with sea turtles and a basis for the study of tissues from exposed hatchling sea turtles.
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Affiliation(s)
- Stasia A. Bembenek Bailey
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Environmental Medicine Consortium, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Fisheries, Wildlife, and Conservation Biology, College of Natural Resources, North Carolina State University, 3120 Jordan Hall, Raleigh, NC 27695, USA
| | - Jennifer N. Niemuth
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Environmental Medicine Consortium, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Fisheries, Wildlife, and Conservation Biology, College of Natural Resources, North Carolina State University, 3120 Jordan Hall, Raleigh, NC 27695, USA
| | - Patricia D. McClellan-Green
- Center for Marine Sciences and Technology, North Carolina State University, 303 College Circle, Morehead City, NC 28557, USA
| | - Matthew H. Godfrey
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Sea Turtle Project, North Carolina Wildlife Resources Commission, 1507 Ann Street, Beaufort, NC 28516, USA
- Nicholas School of the Environment, Duke University Marine Lab, 135 Duke Marine Lab Road, Beaufort, NC 28516, USA
| | - Craig A. Harms
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Environmental Medicine Consortium, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Fisheries, Wildlife, and Conservation Biology, College of Natural Resources, North Carolina State University, 3120 Jordan Hall, Raleigh, NC 27695, USA
- Center for Marine Sciences and Technology, North Carolina State University, 303 College Circle, Morehead City, NC 28557, USA
| | - Michael K. Stoskopf
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Environmental Medicine Consortium, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
- Fisheries, Wildlife, and Conservation Biology, College of Natural Resources, North Carolina State University, 3120 Jordan Hall, Raleigh, NC 27695, USA
- Center for Marine Sciences and Technology, North Carolina State University, 303 College Circle, Morehead City, NC 28557, USA
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Hajirezaee S, Mirvaghefi A, Farahmand H, Agh N. NMR-based metabolomic study on the toxicological effects of pesticide, diazinon on adaptation to sea water by endangered Persian sturgeon, Acipenser persicus fingerlings. CHEMOSPHERE 2017; 185:213-226. [PMID: 28697427 DOI: 10.1016/j.chemosphere.2017.07.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 06/30/2017] [Accepted: 07/03/2017] [Indexed: 06/07/2023]
Abstract
NMR-based metabolomics was applied to explore metabolic impacts of diazinon on sea water adaptation of Persian sturgeon fingerlings, Acipenser persicus. Fingerlings were exposed to sub-lethal concentrations of diazinon in freshwater (FW) for 96 h (short-term trial) and 12 days (long-term trial) and then exposed in brackish water (BW) (12 mg L-1 salinity) for 24 h. After 96 h and 12 days exposure in FW, identified metabolites (amino acids, osmolytes, energy metabolites) showed different change-patterns compared to control group (P < 0.05) as follow: (A) short-term trial: higher plasma levels of glucose, lactate (in all diazinon-exposed fish), acetate and acetoacetate (in 0.9 mg L-1diazinon treatment); lower levels of creatine (in all diazinon-exposed fish), trimethylamine-N-oxide, choline, taurine, betaine, N,N-dimethylglycine and almost all amino acids in fish exposed to high concentrations of diazinon (0.54 and 0.9 mg L-1 diazinon). (B) Long-term trial: higher plasma levels of lipid oxidation metabolites and almost all amino acids in fish exposed to 0.54 and 0.9 mg L-1 diazinon; lower levels of creatine, trimethylamine-N-oxide, N,N-dimethylglycine, betaine, choline (in all diazinon-exposed fish), glucose (in 0.54 and 0.9 mg L-1diazinon treatments) and taurine (in 0.9 mg L-1 diazinon treatment). When fish were exposed in BW for 24 h, the plasma levels of osmolytes decreased significantly in almost all experimental groups of short-term and long-term trial (P < 0.05). In short-term trial, the plasma levels of glucose in all groups and lactate in 0.18 and 0.54 mg L-1 diazinon treatments increased after salinity challenge (P < 0.05). However, a significant decrease was observed in lactate levels in 0.9 mg L-1 diazinon treatment (P < 0.05). Also, the plasma levels of amino acids decreased mostly in fish of control group than exposed fish (P < 0.05). The plasma glycerol concentration showed a significant decrease only in fish of 0.54 mg L-1 diazinon treatment (P < 0.05). In long term trial, the energetic metabolites (acetate, acetoacetate, glycerol) showed significant increases mostly in fish exposed to high concentrations of diazinon (P < 0.05). Phosphocreatine was detected only in groups exposed to 0.54 and 0.9 mg L-1 diazinon. Some amino acids decreased in control and diazinon-exposed groups while glycine (in control and 0.18 mg L-1 diazinon treatment), glutamine and alanine (in 0.9 mg L-1 diazinon treatment) elevated significantly after 24 h acclimation in BW (P < 0.05). Our results may help to understand the effects of pesticides on fish osmoregulation from a metabolic approach.
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Affiliation(s)
- Saeed Hajirezaee
- Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran
| | - Alireza Mirvaghefi
- Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
| | - Hamid Farahmand
- Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran
| | - Naser Agh
- Department of Aquaculture, Urmia Lake Research Institute, Urmia University, Urmia, Iran
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8
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Harville EW, Shankar A, Zilversmit L, Buekens P. The Gulf oil spill, miscarriage, and infertility: the GROWH study. Int Arch Occup Environ Health 2017; 91:47-56. [PMID: 28918439 DOI: 10.1007/s00420-017-1257-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 09/11/2017] [Indexed: 02/04/2023]
Abstract
PURPOSE To examine whether reported exposure to the Gulf oil spill (2010) was related to reproductive reported miscarriage or infertility. METHODS 1524 women aged 18-45 recruited through prenatal and Women, Infant, and Children (WIC) clinics, and community events were interviewed about their experience of the oil spill and reproductive history. 1434 women had information on outcomes of at least one pregnancy, and 633 on a pregnancy both before and after the spill. Generalized estimating equations were used to examine the relationship between contact with oil and economic and social consequences of the spill with postponement of pregnancy, miscarriage, and infertility (time to pregnancy >12 months or reported fertility issues), with adjustment for age, race, BMI, smoking, and socioeconomic status. Results were compared for pregnancies occurring prior to and after the oil spill. RESULTS 77 (5.1%) women reported postponing pregnancy due to the oil spill, which was more common in those with high contact with oil or overall high exposure (aOR 2.92, 95% CI 1.31-6.51). An increased risk of miscarriage was found with any exposure to the oil spill (aOR, 1.54, 95% CI 1.17-2.02). Fertility issues were more common in the overall most highly exposed women (aOR 1.88, 1.19-2.95), when the data were limited to those with pregnancies before and after. However, no particular aspect of oil spill exposure was strongly associated with the outcomes, and effects were almost as strong for pregnancies prior to the oil spill. CONCLUSIONS The oil spill appears to have affected reproductive decision-making. The evidence is not strong that exposure to the oil spill was associated with miscarriage or infertility.
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Affiliation(s)
- Emily W Harville
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal St. #8318, STE 2000, New Orleans, LA, 70112-2715, USA.
| | - Arti Shankar
- Global Biostatistics and Data Science, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Leah Zilversmit
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal St. #8318, STE 2000, New Orleans, LA, 70112-2715, USA
| | - Pierre Buekens
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal St. #8318, STE 2000, New Orleans, LA, 70112-2715, USA
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Hansen BH, Altin D, Nordtug T, Øverjordet IB, Olsen AJ, Krause D, Størdal I, Størseth TR. Exposure to crude oil micro-droplets causes reduced food uptake in copepods associated with alteration in their metabolic profiles. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 184:94-102. [PMID: 28119129 DOI: 10.1016/j.aquatox.2017.01.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/13/2017] [Accepted: 01/16/2017] [Indexed: 06/06/2023]
Abstract
Acute oil spills and produced water discharges may cause exposure of filter-feeding pelagic organisms to micron-sized dispersed oil droplets. The dissolved oil components are expected to be the main driver for oil dispersion toxicity; however, very few studies have investigated the specific contribution of oil droplets to toxicity. In the present work, the contribution of oil micro-droplet toxicity in dispersions was isolated by comparing exposures to oil dispersions (water soluble fraction with droplets) to concurrent exposure to filtered dispersions (water-soluble fractions without droplets). Physical (coloration) and behavioral (feeding activity) as well as molecular (metabolite profiling) responses to oil exposures in the copepod Calanus finmarchicus were studied. At high dispersion concentrations (4.1-5.6mg oil/L), copepods displayed carapace discoloration and reduced swimming activity. Reduced feeding activity, measured as algae uptake, gut filling and fecal pellet production, was evident also for lower concentrations (0.08mg oil/L). Alterations in metabolic profiles were also observed following exposure to oil dispersions. The pattern of responses were similar between two comparable experiments with different oil types, suggesting responses to be non-oil type specific. Furthermore, oil micro-droplets appear to contribute to some of the observed effects triggering a starvation-type response, manifested as a reduction in metabolite (homarine, acetylcholine, creatine and lactate) concentrations in copepods. Our work clearly displays a relationship between crude oil micro-droplet exposure and reduced uptake of algae in copepods.
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Affiliation(s)
- Bjørn Henrik Hansen
- SINTEF Materials and Chemistry, Environmental Technology, Trondheim, Norway; Norwegian University of Science and Technology, Department of Biology, Trondheim, Norway.
| | | | - Trond Nordtug
- SINTEF Materials and Chemistry, Environmental Technology, Trondheim, Norway
| | | | - Anders J Olsen
- Norwegian University of Science and Technology, Department of Biology, Trondheim, Norway
| | - Dan Krause
- SINTEF Materials and Chemistry, Environmental Technology, Trondheim, Norway
| | - Ingvild Størdal
- Norwegian University of Science and Technology, Department of Biology, Trondheim, Norway
| | - Trond R Størseth
- SINTEF Materials and Chemistry, Environmental Technology, Trondheim, Norway
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10
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Huang SSY, Benskin JP, Chandramouli B, Butler H, Helbing CC, Cosgrove JR. Xenobiotics Produce Distinct Metabolomic Responses in Zebrafish Larvae (Danio rerio). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:6526-6535. [PMID: 27232715 DOI: 10.1021/acs.est.6b01128] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Sensitive and quantitative protocols for characterizing low-dose effects are needed to meet the demands of 21st century chemical hazard assessment. To test the hypothesis that xenobiotic exposure at environmentally relevant concentrations produces specific biochemical fingerprints in organisms, metabolomic perturbations in zebrafish (Danio rerio) embryo/larvae were measured following 24 h exposures to 13 individual chemicals covering a wide range of contaminant classes. Measured metabolites (208 in total) included amino acids, biogenic amines, fatty acids, bile acids, sugars, and lipids. The 96-120 h post-fertilization developmental stage was the most appropriate model for detecting xenobiotic-induced metabolomic perturbations. Metabolomic fingerprints were largely chemical- and dose-specific and were reproducible in multiple exposures over a 16-month period. Furthermore, chemical-specific responses were detected in the presence of an effluent matrix; importantly, in the absence of morphological response. In addition to improving sensitivity for detecting biological responses to low-level xenobiotic exposures, these data can aid the classification of novel contaminants based on the similarity of metabolomic responses to well-characterized "model" compounds. This approach is clearly of use for rapid, sensitive, and specific analyses of chemical effect on organisms, and can supplement existing methods, such as the Zebrafish Embryo Toxicity assay (OECD TG236), with molecular-level information.
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Affiliation(s)
- Susie S Y Huang
- AXYS Analytical Services Ltd., Sidney, British Columbia, Canada
| | - Jonathan P Benskin
- AXYS Analytical Services Ltd., Sidney, British Columbia, Canada
- Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University , Stockholm, Sweden
| | | | - Heather Butler
- AXYS Analytical Services Ltd., Sidney, British Columbia, Canada
| | - Caren C Helbing
- Department of Biochemistry and Microbiology, University of Victoria , Victoria, British Columbia, Canada
| | - John R Cosgrove
- AXYS Analytical Services Ltd., Sidney, British Columbia, Canada
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11
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Frantzen M, Hansen BH, Geraudie P, Palerud J, Falk-Petersen IB, Olsen GH, Camus L. Acute and long-term biological effects of mechanically and chemically dispersed oil on lumpsucker (Cyclopterus lumpus). MARINE ENVIRONMENTAL RESEARCH 2015; 105:8-19. [PMID: 25637877 DOI: 10.1016/j.marenvres.2014.12.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 12/16/2014] [Accepted: 12/20/2014] [Indexed: 06/04/2023]
Abstract
Concentration dependent differences in acute and long-term effects of a 48 h exposure to mechanically or chemically dispersed crude oil were assessed on juvenile lumpsucker (Cyclopterus lumpus). Acute or post-exposure mortality was only observed at oil concentrations representing higher concentrations than reported after real oil spills. Acute mortality was more apparent in chemically than mechanically dispersed oil treatments whereas comparable EC50s were observed for narcosis. There was a positive correlation between EROD activity and muscle PAH concentration for the lower oil concentrations whereas higher concentrations inhibited the enzyme activity. The incidence of gill tissue lesions was low with no difference between dispersion methods or oil concentrations. A concentration dependent decrease in swimming- and feeding behavior and in SGR was observed at the start of the post-exposure period, but with no differences between corresponding oil treatments. Three weeks post-exposure, fish from all treatments showed as high SGR as the control fish.
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Affiliation(s)
| | - Bjørn Henrik Hansen
- SINTEF Materials and Chemistry, Environmental Technology, N-7465 Trondheim, Norway.
| | | | - Jocelyn Palerud
- Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway; UiT - The Arctic University of Norway, Faculty of Bioscience, Fisheries and Economics, Department of Arctic and Marine Bioscience, N-9037 Tromsø, Norway.
| | - Inger-Britt Falk-Petersen
- UiT - The Arctic University of Norway, Faculty of Bioscience, Fisheries and Economics, Department of Arctic and Marine Bioscience, N-9037 Tromsø, Norway.
| | - Gro H Olsen
- Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway.
| | - Lionel Camus
- Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway.
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12
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Van Scoy AR, Voorhees J, Anderson BS, Philips BM, Tjeerdema RS. Use of semipermeable membrane devices (SPMDs) to characterize dissolved hydrocarbon fractions of both dispersed and undispersed oil. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2013; 15:2016-2022. [PMID: 24056734 DOI: 10.1039/c3em00275f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Crude oil contamination remains a problem along coastal California and its impacts on pelagic organisms are of concern. Previous crude and dispersed oil studies showed a decrease in fish toxicity when Corexit 9500 dispersant was applied. However, observed sublethal metabolic effects were similar for both oil conditions, suggesting fish were accumulating similar dissolved hydrocarbons. This study aimed to characterize the bioavailable fraction of the water-accommodated fraction (WAF) and the chemically-enhanced WAF (CEWAF) of Prudhoe Bay Crude Oil (PBCO), using semi-permeable membrane devices (SPMDs) as fish models. Seven accumulated PAHs were identified (naphthalene, 2-methylnaphthalene, 1-methylnapthalene, biphenyl, fluorene, dibenzothiophene and phenanthrene) from 24 h static exposures. Although WAF and CEWAF oil loadings differed by eight-fold, accumulated dissolved concentrations among the seven PAHs differed by some three-fold. Overall, the use of SPMDs in characterizing the dissolved fraction of PBCO, has provided a better understanding of the bioavailability of crude and dispersed oil.
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Affiliation(s)
- April R Van Scoy
- Department of Environmental Toxicology, College of Agricultural & Environmental Sciences, University of California, Davis, CA 95616-8588, USA.
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13
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Effects of crude oil, dispersant, and oil-dispersant mixtures on human fecal microbiota in an in vitro culture system. mBio 2012; 3:mBio.00376-12. [PMID: 23093387 PMCID: PMC3482501 DOI: 10.1128/mbio.00376-12] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The Deepwater Horizon oil spill of 2010 raised concerns that dispersant and dispersed oil, as well as crude oil itself, could contaminate shellfish and seafood habitats with hazardous residues that had potential implications for human health and the ecosystem. However, little is known about the effects of crude oil and dispersant on the human fecal microbiota. The aim of this research was to evaluate the potential effects of Deepwater Horizon crude oil, Corexit 9500 dispersant, and their combination on human fecal microbial communities, using an in vitro culture test system. Fecal specimens from healthy adult volunteers were made into suspensions, which were then treated with oil, dispersant, or oil-dispersant mixtures under anaerobic conditions in an in vitro culture test system. Perturbations of the microbial community, compared to untreated control cultures, were assessed using denaturing gradient gel electrophoresis (DGGE), real-time PCR, and pyrosequencing methods. DGGE and pyrosequencing analysis showed that oil-dispersant mixtures reduced the diversity of fecal microbiota from all individuals. Real-time PCR results indicated that the copy numbers of 16S rRNA genes in cultures treated with dispersed oil or oil alone were significantly lower than those in control incubations. The abundance of the Bacteroidetes decreased in crude oil-treated and dispersed-oil-treated cultures, while the Proteobacteria increased in cultures treated with dispersed oil. In conclusion, the human fecal microbiota was affected differently by oil and dispersed oil, and the influence of dispersed oil was significantly greater than that of either oil or dispersant alone compared to control cultures. There have been concerns whether human health is adversely affected by exposure to spilled crude oil, which contains regulated carcinogens, such as polycyclic aromatic hydrocarbons. In this study, we determined the effect of BP Deepwater Horizon crude oil and oil dispersant on the human intestinal microbiota, since there is the potential that low-level residues of petrochemicals could contaminate seafood. The results of this study will increase our understanding of the ecophysiological changes in the microbial communities of the human gastrointestinal tract with respect to crude oil exposure.
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14
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Zhang Y, Chen D, Ennis AC, Polli JR, Xiao P, Zhang B, Stellwag EJ, Overton A, Pan X. Chemical dispersant potentiates crude oil impacts on growth, reproduction, and gene expression in Caenorhabditis elegans. Arch Toxicol 2012; 87:371-82. [PMID: 22990136 DOI: 10.1007/s00204-012-0936-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 08/28/2012] [Indexed: 01/09/2023]
Abstract
The economic, environmental, and human health impacts of the deepwater horizon (DWH) oil spill have been of significant concern in the general public and among scientists. This study employs parallel experiments to test the effects of crude oil from the DWH oil well, chemical dispersant Corexit 9500A, and dispersant-oil mixture on growth and reproduction in the model organism Caenorhabditis elegans. Both the crude oil and the dispersant significantly inhibited the reproduction of C. elegans. Dose-dependent inhibitions of hatched larvae production were observed in worms exposed to both crude oil and dispersant. Importantly, the chemical dispersant Corexit 9500A potentiated crude oil effects; dispersant-oil mixture induced more significant effects than oil or dispersant-alone exposures. While oil-alone exposure and dispersant-alone exposure have none to moderate inhibitory effects on hatched larvae production, respectively, the mixture of dispersant and oil induced much more significant inhibition of offspring production. The production of hatched larvae was almost completely inhibited by several high concentrations of the dispersant-oil mixture. This suggests a sensitive bioassay for future investigation of oil/dispersant impacts on organisms. We also investigated the effects of crude oil/dispersant exposure at the molecular level by measuring the expressions of 31 functional genes. Results showed that the dispersant and the dispersant-oil mixture induced aberrant expressions of 12 protein-coding genes (cat-4, trxr-2, sdhb-1, lev-8, lin-39, unc-115, prdx-3, sod-1, acr-16, ric-3, unc-68, and acr-8). These 12 genes are associated with a variety of biological processes, including egg-laying, oxidative stress, muscle contraction, and neurological functions. In summary, the toxicity potentiating effect of chemical dispersant must be taken into consideration in future crude oil cleanup applications.
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Affiliation(s)
- Yanqiong Zhang
- Department of Biology, East Carolina University, N108 Howell Science Complex, Greenville, NC 27858, USA
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