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Lu HC, Melvin SD, Ziajahromi S, Neale PA, Leusch FDL, Kumar A. Polyethylene microplastics induced lipidomic responses in Chironomus tepperi: A two-generational exploration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170837. [PMID: 38350569 DOI: 10.1016/j.scitotenv.2024.170837] [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: 11/09/2023] [Revised: 01/18/2024] [Accepted: 02/07/2024] [Indexed: 02/15/2024]
Abstract
Microplastics (MPs) accumulating in freshwater sediment have raised concerns about potential risks to benthic dwelling organisms, yet few studies have examined the long-term impacts caused by MP exposure. This study investigated alterations to lipid profiles in an Australian freshwater invertebrate, Chironomus tepperi, induced by polyethylene MP fragments (1-45 μm) at environmentally relevant concentrations (125, 250, 500 and 1000 MPs/kg sediment), using a two-generational experimental design. In the parental generation, the relative abundance of triacylglycerols, total fatty acids and unsaturated fatty acids exhibited apparent hormetic patterns, with low-concentration stimulation and high-concentration inhibition observed. The overall trend in these lipid classes is consistent with previously observed changes to polar metabolite profiles, indicating that ingestion of MPs could inhibit nutrient assimilation from food leading to disruption of energy availability. In the first filial generation continuously exposed to MPs, however, abundance of cholesterol and total fatty acids increased with increasing exposure concentrations, suggesting different effects on energy metabolism between the parental generation and offspring. No differences in the lipidome were observed in first filial larvae that were not exposed, implying that MPs pose negligible carry-over effects. Overall, the combined results of this study together with a preceding metabolomics study provide evidence of a physical effect of MPs with subsequent impacts to bioenergetics. Nevertheless, future research is required to explore the potential long-term impacts caused by MPs, and to unravel the impacts of the surfactant control as a potential contributor to the observed hormetic response, particularly for studies exploring sub-lethal effects of MP exposure using sensitive omics techniques.
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Affiliation(s)
- Hsuan-Cheng Lu
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport, Qld 4222, Australia; Environment, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Urrbrae, SA 5064, Australia.
| | - Steven D Melvin
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport, Qld 4222, Australia
| | - Shima Ziajahromi
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport, Qld 4222, Australia
| | - Peta A Neale
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport, Qld 4222, Australia
| | - Frederic D L Leusch
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport, Qld 4222, Australia
| | - Anupama Kumar
- Environment, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Urrbrae, SA 5064, Australia
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2
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Miao T, Li M, Shao T, Jiang X, Jiang L, Zhou Q, Pan Y, Wang Y, Qiu J. The involvement of branched-chain amino acids (BCAAs) in aromatic trihalogenated DBP exposure-induced kidney damage in mice. CHEMOSPHERE 2022; 305:135351. [PMID: 35718037 DOI: 10.1016/j.chemosphere.2022.135351] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 05/10/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Disinfection by-products (DBPs) are inevitably generated in the process of disinfection. Among them, aromatic halogenated DBPs, such as 2,4,6-trichlorophenol (TCP), 2,4,6-tribromophenol (TBP) and 2,4,6-triiodophenol (TIP), have attracted considerable interest for their high toxicity. A systematic nephrotoxicity evaluation of 2,4,6-trihalophenols is still lacking. In this study, mice were exposed to TCP, TBP and TIP ranging from environmental-related low concentration to high concentration that commonly used in animal study (0.5-200 μg/L). Kidney histopathology, urine protein detection and urine metabolomics were performed. Remarkable changes including kidney damage, proteinuria and glomerular mesangial cell proliferation were observed after three 2,4,6-trihalophenol exposure, even at low concentration of 0.5 μg/L. The nephrotoxicity rank order was TIP > TBP > TCP. Additionally, in vivo exposure to 2,4,6-trihalophenols also led to apparent changes in urinary metabolic profiles. Biosynthesis pathways of branched-chain amino acids (BCAAs, containing valine, leucine and isoleucine) were disturbed even at the early stage of exposure (4 weeks). Intriguingly, it has been reported that BCAAs could promote the proliferation of glomerular mesangial cells. Thus, in vitro cell experiments were further performed on mouse glomerular mesangial cell line MES-13. Consistently with in vivo results, cell proliferation was observed in MES-13 cells after exposure to 2,4,6-trihalophenols, especially to TBP and TIP. Meanwhile, TCP at high concentration, TBP and TIP at not only high concentration but also low concentration, induced BCAAs accumulation in glomerular mesangial cells, which was completely commensurate to that observed in cell proliferation assay. Then the proliferation of MES-13 cells induced by 2,4,6-trihalophenols was remarkably inhibited after BCAAs interference. Here we provide direct link between disturbed BCAAs and the nephrotoxicity of 2,4,6-trihalophenols. 2,4,6-trihalophenols could induce excess BCAAs, which further led to proliferation of glomerular mesangial cells and renal injury. This study revealed the nephrotoxicity of aromatic trihalogenated DBPs and provided new insights into the potential toxic mechanisms.
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Affiliation(s)
- Tingting Miao
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, China
| | - Mingzhi Li
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, China
| | - Tianye Shao
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, China
| | - Xiaoqin Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Liujing Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Yang Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Yong Wang
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, China.
| | - Jingfan Qiu
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, China.
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Islam R, Melvin SD, Kit Yu RM, O'Connor WA, Anh Tran TK, Andrew-Priestley M, Leusch FDL, MacFarlane GR. Estrogenic mixtures induce alterations in lipidomic profiles in the gonads of female oysters. CHEMOSPHERE 2022; 291:132997. [PMID: 34822861 DOI: 10.1016/j.chemosphere.2021.132997] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
This study aimed to reveal possible alterations to lipidomic profiles in Sydney rock oysters, Saccostrea glomerata, exposed to estrogenic mixtures (i.e., estrone, E1; 17β-estradiol, E2; estriol, E3; 17α-ethinylestradiol, EE2; bisphenol A, BPA; 4-t-octylphenol, 4-t-OP; and 4-nonylphenol, 4-NP) at "low" and "high" concentrations, typical of those detected in Australian and global receiving waters. A seven-day acute exposure window exhibited significantly lower abundances of many non-polar metabolites in digestive gland, gills, and gonads. Overall, there was a strong effect of the carrier solvent ethanol (despite a low exposure of 0.0002%), with all solvent containing treatments exhibiting lower abundances of lipidic metabolites, especially in the gill and digestive gland. No significant changes of the lipidome were exhibited in the male gonad by estrogenic exposure. However, in the female gonad, significant reductions of phospholipids and phosphatidylcholine were associated with exposure to high estrogenic mixtures. We hypothesise that the decreases in these phospholipids in the female gonad may be attributable to 1) lower algal consumption and thus lower uptake of lipidic building blocks; 2) a reduction of available substrates for phospholipid and phosphatidylcholine synthesis; and/or 3) induction of reactive oxygen species via estrogen metabolism, which may cause lipid peroxidation and lower abundance of phospholipids.
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Affiliation(s)
- Rafiquel Islam
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia; Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia, 7003, Bangladesh
| | - Steven D Melvin
- Australian Rivers Institute, School of Environment and Science, Griffith University, QLD, 4222, Australia
| | - Richard Man Kit Yu
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Wayne A O'Connor
- New South Wales Department of Primary Industries, Port Stephens Fisheries Institute, Taylors Beach, NSW, 2316, Australia
| | - Thi Kim Anh Tran
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia; School of Agriculture and Resources, Vinh University, Viet Nam
| | | | - Frederic D L Leusch
- Australian Rivers Institute, School of Environment and Science, Griffith University, QLD, 4222, Australia
| | - Geoff R MacFarlane
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia.
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4
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Jacob H, Besson M, Oberhaensli F, Taylor A, Gillet B, Hughes S, Melvin SD, Bustamante P, Swarzenski PW, Lecchini D, Metian M. A multifaceted assessment of the effects of polyethylene microplastics on juvenile gilthead seabreams (Sparus aurata). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 241:106004. [PMID: 34739976 DOI: 10.1016/j.aquatox.2021.106004] [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: 05/17/2021] [Revised: 09/21/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
Plastic pollution has become a major environmental and societal concern in the last decade. From larger debris to microplastics (MP), this pollution is ubiquitous and particularly affects aquatic ecosystems. MP can be directly or inadvertently ingested by organisms, transferred along the trophic chain, and sometimes translocated into tissues. However, the impacts of such MP exposure on organisms' biological functions are yet to be fully understood. Here, we used a multi-diagnostic approach at multiple levels of biological organization (from atoms to organisms) to determine how MP affect the biology of a marine fish, the gilthead seabream, Sparus aurata. We exposed juvenile seabreams for 35 days to spherical 10-20 µm polyethylene primary MP through food (Artemia salina pre-exposed to MP) at a concentration of 5 ± 1 µg of MP per gram of fish per day. MP-exposed fish experienced higher mortality, increased abundance of several brain and liver primary metabolites, hepatic and intestinal histological defects, higher assimilation of an essential element (Zn), and lower assimilation of a non-essential element (Ag). In contrast, growth and muscle C/N isotopic profiles were similar between control and MP-exposed fish, while variable patterns were observed for the intestinal microbiome. This comprehensive analysis of biological responses to MP exposure reveals how MP ingestion can cause negligible to profound effects in a fish species and contributes towards a better understanding of the causal mechanisms of its toxicity.
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Affiliation(s)
- Hugo Jacob
- PSL Research University, EPHE-UPVD-CNRS, USR 3278 CRIOBE BP 1013, Moorea, Papetoai 98729, French Polynesia
| | - Marc Besson
- School of Biological Sciences, University of Bristol, United Kingdom
| | - François Oberhaensli
- International Atomic Energy Agency - Environment Laboratories, 4a Quai Antoine 1er, Monaco, Principality of Monaco 98000, Monaco
| | - Angus Taylor
- International Atomic Energy Agency - Environment Laboratories, 4a Quai Antoine 1er, Monaco, Principality of Monaco 98000, Monaco
| | - Benjamin Gillet
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5242, Ecole Normale Supérieure, Lyon 69342, France
| | - Sandrine Hughes
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5242, Ecole Normale Supérieure, Lyon 69342, France
| | - Steven D Melvin
- Australian Rivers Institute, Griffith University Gold Coast, Building G51, Edmund Rice Drive,Q, Southport 4215, Australia
| | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, La Rochelle 17000, France; Institut Universitaire de France (IUF), 1 rue Descartes, Paris 75005, France
| | - Peter W Swarzenski
- International Atomic Energy Agency - Environment Laboratories, 4a Quai Antoine 1er, Monaco, Principality of Monaco 98000, Monaco
| | - David Lecchini
- PSL Research University, EPHE-UPVD-CNRS, USR 3278 CRIOBE BP 1013, Moorea, Papetoai 98729, French Polynesia; Laboratoire d'Excellence "CORAIL", Moorea, Papetoai 98729, French Polynesia
| | - Marc Metian
- International Atomic Energy Agency - Environment Laboratories, 4a Quai Antoine 1er, Monaco, Principality of Monaco 98000, Monaco.
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5
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Yang L, Liu Y, Cui Z, Zhang Y, Zhang J, Lian K. Metabolomic mechanisms of short chain chlorinated paraffins toxicity in rats. ENVIRONMENTAL RESEARCH 2021; 197:111060. [PMID: 33798518 DOI: 10.1016/j.envres.2021.111060] [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] [Received: 12/09/2020] [Revised: 01/28/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
Short chain chlorinated paraffins (SCCPs) have received increased interest worldwide since they were added to the list of controlled POPs in Annex A of the Stockholm Convention in 2017. Although many toxicological studies have already shown that SCCPs are hepatotoxic, nephrotoxic, and thyrotoxic to rodents, there have been few studies to date that have characterized changes in the metabolic pathways targeted by SCCPs. In this study, a UPLC-Q-TOF-MS based plasma metabolomics approach was used to investigate the toxicity of SCCPs in rats. Liver and kidney injury occurred rapidly after high-dose SCCP exposure, and the most relevant pathways affected were energy metabolism, amino acid metabolism, glycerophospholipid metabolism, nucleotide metabolism, and vitamin B metabolism. Exposure to SCCPs inhibited the tricarboxylic acid cycle and accelerated degradation. Fluctuating levels of phospholipids and nucleotides may have contributed to the neurotoxicity of SCCPs. In addition, the down regulation of folic acid induced by SCCPs may have led to malformations during the early development of laboratory animals. These results suggested that high exposure levels of SCCPs may have serious health risks and more research is needed to assess the health status of relevant occupational groups.
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Affiliation(s)
- Lixin Yang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; Hebei Centre for Disease Control and Prevention, Shijiazhuang, 050021, China
| | - Yinping Liu
- Hebei Centre for Disease Control and Prevention, Shijiazhuang, 050021, China
| | - Ze Cui
- Hebei Centre for Disease Control and Prevention, Shijiazhuang, 050021, China
| | - Yongmao Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Jianbo Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China.
| | - Kaoqi Lian
- School of Public Health, Hebei Medical University, Shijiazhuang, Hebei, 050017, China; Hebei Province Key Laboratory of Environment and Human Health, Hebei Medical University, Shijiazhuang, 050017, China.
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6
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Tuyen DT, Yew GY, Cuong NT, Hoang LT, Yen HT, Hong Thao PT, Thao NT, Sy le Thanh N, Hien Trang NT, Trung NT, Afridi R, Mai Anh DT, Show PL. Selection, purification, and evaluation of acarbose-an α-glucosidase inhibitor from Actinoplanes sp. CHEMOSPHERE 2021; 265:129167. [PMID: 33307502 DOI: 10.1016/j.chemosphere.2020.129167] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/08/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
Actinoplanes sp. A1094 strain had been selected for its high production of acarbose from 20 different strains of Actinoplanes sp. can be found in wild. The content for glucosidase inhibitor of acarbose concentration was recorded at 1.12 g/L. The conducted analysis of 16S rRNA sequence of Actinoplanes sp. A1094 showed 99% similar identity to the corresponding sequence of Actinoplanes hulinensis. Acarbose was purified from Actinoplanes hulinensis 1094 with a yield of 8.48%, purity of 98% and further identified by LC/MS and NMR methods (C25H43NO18; m/z: 645.6 g/mol). The purified acarbose was used to evaluate the hypoglycemia in streptozotocin (STZ)-induced diabetic mice model. The purified acarbose reduced postprandial blood glucose level in comparison with Glucobay® as medication for control type 2 diabetes in a combination therapy. Notably, the outcomes of native acarbose on fasting blood glucose levels in mice resemble akin to the commercial product and the acarbose accumulating fermentation and metabolic engineering from the cell gene in which would reduce in production cost. Therefore, acarbose from Actinoplanes hulinensis 1094 could be potentially used to make products for the treatment of type II diabetes.
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Affiliation(s)
- Do Thi Tuyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Caugiay Distr., 100000, Hanoi, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Viet Nam.
| | - Guo Yong Yew
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Nguyen Tien Cuong
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Caugiay Distr., 100000, Hanoi, Viet Nam
| | - Le Thanh Hoang
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Caugiay Distr., 100000, Hanoi, Viet Nam
| | - Hoang Thi Yen
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Caugiay Distr., 100000, Hanoi, Viet Nam
| | - Phan Thi Hong Thao
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Caugiay Distr., 100000, Hanoi, Viet Nam
| | - Nguyen Thi Thao
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Caugiay Distr., 100000, Hanoi, Viet Nam
| | - Nguyen Sy le Thanh
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Caugiay Distr., 100000, Hanoi, Viet Nam
| | - Nguyen Thi Hien Trang
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Caugiay Distr., 100000, Hanoi, Viet Nam
| | - Nguyen Thi Trung
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Viet Nam
| | | | - Dao Thi Mai Anh
- Department of Biochemistry, Hanoi University of Pharmacy, Viet Nam
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia.
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Sievers M, Hale R, Parris KM, Melvin SD, Lanctôt CM, Swearer SE. Contaminant-induced behavioural changes in amphibians: A meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 693:133570. [PMID: 31369889 DOI: 10.1016/j.scitotenv.2019.07.376] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/20/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
Environmental contamination contributes to the threatened status of many amphibian populations. Many contaminants alter behaviour at concentrations commonly experienced in the environment, with negative consequences for individual fitness, populations and communities. A comprehensive, quantitative evaluation of the behavioural sensitivity of amphibians is warranted to better understand the population-level and resultant ecological impacts of contaminants. We conducted a systematic review and meta-analysis evaluating behavioural changes following exposure to contaminants. Most studies were conducted in North America and Europe on larval stages, and 64% of the 116 studies focussed on the effects of insecticides. We found that a suite of contaminants influence a wide range of behaviours in amphibians, with insecticides typically invoking the strongest responses. In particular, insecticides increased rates of abnormal swimming, and reduced escape responses to simulated predator attacks. Our analysis identified five key needs for future research, in particular the need: (1) for researchers to provide more details of experimental protocols and results (2) to develop a strong research base for future quantitative reviews, (3) to broaden the suite of contaminants tested, (4) to better study and thus understand the effects of multiple stressors, and (5) to establish the ecological importance of behavioural alterations. Behavioural endpoints provide useful sub-lethal indicators of how contaminants influence amphibians, and coupled with standard ecotoxicological endpoints, can provide valuable information for population models assessing the broader ecological consequences of environmental contamination.
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Affiliation(s)
- Michael Sievers
- School of BioSciences, The University of Melbourne, Parkville, Victoria 3010, Australia; School of Ecosystem and Forest Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia; Australian Rivers Institute - Coast & Estuaries, Griffith University, Gold Coast, Queensland 4222, Australia.
| | - Robin Hale
- School of BioSciences, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Kirsten M Parris
- School of Ecosystem and Forest Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Steven D Melvin
- Australian Rivers Institute, Griffith University, Southport, Queensland 4222, Australia
| | - Chantal M Lanctôt
- Australian Rivers Institute, Griffith University, Southport, Queensland 4222, Australia
| | - Stephen E Swearer
- School of BioSciences, The University of Melbourne, Parkville, Victoria 3010, Australia
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8
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Young SD, Gavel MJ, Gutierrez-Villagomez JM, Forbes MR, Robinson SA. Assessment of sublethal ecotoxicity of solvents on larvae of a model native amphibian (Lithobates pipiens). J Appl Toxicol 2019; 40:483-492. [PMID: 31736102 DOI: 10.1002/jat.3920] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 12/12/2022]
Abstract
Carrier solvents are used frequently in toxicity testing to assist hydrophobic chemicals into solution, but such solvents may have toxic effects on test subjects. Amphibians are model organisms in toxicity studies; however, little is known about the direct effects of solvents on native amphibians. Following modifications to standardized guidelines for native species, we used acute 96-hour exposures to assess the direct effects of three common solvents on survival, differences in morphology and occurrence of abnormalities of northern leopard frog larvae (Lithobates pipiens). The solvents, dimethyl sulfoxide (DMSO), ethanol (ETOH) and acetone (ACE) were used at nominal concentrations ranging from 1 to 100 μL/L. We also conducted a 30-day exposure to assess the direct chronic effects of DMSO at 1 and 5 μL/L, on larval growth, development and sex differentiation, but found no effects. Acute exposure to solvents also had no effect on the survival of larvae, but we found significant abnormalities in tadpoles acutely exposed to 100 μL/L ACE. Acute exposure to DMSO and ETOH had further concentration-dependent effects on larval morphological traits. Our study suggests that DMSO and ETOH at ≤20 μL/L may be used as solvents in amphibian ecotoxicological studies, but ACE should be limited to ≤50 μL/L in ecotoxicity studies and perhaps much less (≤10 μL/L) in studies with other amphibians, based on a review of existing literature. We emphasize pilot studies when using solvents on acute and chronic ecotoxicity tests, using native amphibians.
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Affiliation(s)
- Sarah D Young
- Environment and Climate Change Canada, National Wildlife Research Centre, Ecotoxicology and Wildlife Health Division, Ottawa, Ontario, Canada
| | - Melody J Gavel
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | | | - Mark R Forbes
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Stacey A Robinson
- Environment and Climate Change Canada, National Wildlife Research Centre, Ecotoxicology and Wildlife Health Division, Ottawa, Ontario, Canada
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9
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Qiu J, Cheng J, Xie Y, Jiang L, Shi P, Li X, Swanda RV, Zhou J, Wang Y. 1,4-Dioxane exposure induces kidney damage in mice by perturbing specific renal metabolic pathways: An integrated omics insight into the underlying mechanisms. CHEMOSPHERE 2019; 228:149-158. [PMID: 31029960 DOI: 10.1016/j.chemosphere.2019.04.111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 03/17/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
1,4-Dioxane (dioxane), an industrial solvent widely detected in environmental and biological matrices, has potential nephrotoxicity. However, the underlying mechanism by which dioxane induces kidney damage remains unclear. In this study, we used an integrated approach, combining kidney transcriptomics and urine metabolomics, to explore the mechanism for the toxic effects of dioxane on the mouse kidney. Transcriptomics profiling showed that exposure to 0.5 mg/L dioxane induced perturbations of multiple signaling pathways in kidneys, such as MAPK and Wnt, although no changes in oxidative stress indicators or anatomical pathology were observed. Exposure to 500 mg/L dioxane significantly disrupted various metabolic pathways, concomitantly with observed renal tissue damage and stimulated oxidant defense system. Urine metabolomic analysis using NMR indicated that exposure to dioxane gradually altered the metabolic profile of urine. Within the full range of altered metabolites, the metabolic pathway containing glycine, serine and threonine was the most significantly altered pathway at the early stage of exposure (3 weeks) in both 0.5 and 500 mg/L dioxane-treated groups. However, with prolonged exposure (9 and 12 weeks), the level of taurine significantly decreased after treatment of 0.5 mg/L dioxane, while exposure to 500 mg/L dioxane significantly increased glutathione levels in urine and decreased arginine metabolism. Furthermore, integrated omics analysis showed that 500 mg/L dioxane exposure induced arginine deficiency by perturbing several genes involved in renal arginine metabolism. Shortage of arginine coupled with increased oxidative stress could lead to renal dysfunction. These findings offer novel insights into the toxicity of dioxane.
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Affiliation(s)
- Jingfan Qiu
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, China.
| | - Jiade Cheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Yanci Xie
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, China
| | - Liujing Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Peng Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Xinying Li
- High School Affiliated to Nanjing Normal University, Nanjing, 210003, China
| | - Robert V Swanda
- Division of Nutritional Sciences, Cornell University, Ithaca, 14853, United States
| | - Jun Zhou
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Yong Wang
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, 211166, China.
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do Amaral DF, Montalvão MF, de Oliveira Mendes B, da Costa Araújo AP, de Lima Rodrigues AS, Malafaia G. Sub-lethal effects induced by a mixture of different pharmaceutical drugs in predicted environmentally relevant concentrations on Lithobates catesbeianus (Shaw, 1802) (Anura, ranidae) tadpoles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:600-616. [PMID: 30411290 DOI: 10.1007/s11356-018-3656-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/31/2018] [Indexed: 06/08/2023]
Abstract
The increasing consumption of medications by humans has negative effects such as the increased disposal of these compounds in the environment. Little is known about how the disposal of a "drug mix" (DM) in aquatic ecosystems can affect their biota. Thus, we evaluated whether the exposure of Lithobates casteibeianus tadpoles to a DM composed of different medication classes (antibiotic, anti-inflammatory, antidepressant, anxiolytic, analgesic, and antacid drugs)-at environmentally relevant concentrations-may change their oral morphology, trigger behavioral disorders, and have mutagenic effects on erythrocyte cells. Based on our data, animals exposed to the DM showed changes in mandibular sheath pigmentation, dentition, and swimming activity, as well as atypical behavior in the social aggregation test [with co-specific and interspecific (Physalaemus cuvieri) individuals] and antipredatory defensive response deficit (chemical stimulus from Odonata larvae), after 15 exposure days. The mutagenic analysis revealed higher frequency of nuclear abnormalities in the erythrocytes of tadpoles exposed to the DM (e.g., multilobulated, blebbed, kidney-shaped, notched nucleus, binuclear, and micronucleated erythrocytes). Given the chemical complexity of the DM, we assumed that several organic functions may have been affected, either by the isolated, synergistic, antagonistic, or additive action of DM compounds. Finally, our study confirms the toxicological potential of DM in L. catesbeianus tadpoles, with emphasis to impacts that can affect the fitness of individuals and their natural populations. Thus, we suggest that more attention should be given to the disposal of medications in the environment and reinforce the need of improving water and sewage treatment systems.
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Affiliation(s)
- Diogo Ferreira do Amaral
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Mateus Flores Montalvão
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Bruna de Oliveira Mendes
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Amanda Pereira da Costa Araújo
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
- Biologigal Sciences Department, Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources - Biological Research Laboratory, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil.
- Biologigal Sciences Department, Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute-Urutaí Campus, Urutaí, GO, Brazil.
- Laboratório de Pesquisas Biológicas, Instituto Federal Goiano-Campus Urutaí, Rodovia Geraldo Silva Nascimento, 2,5 km, Zona Rural, Urutaí, GO, Brazil.
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Melvin SD, Leusch FDL, Carroll AR. Metabolite profiles of striped marsh frog (Limnodynastes peronii) larvae exposed to the anti-androgenic fungicides vinclozolin and propiconazole are consistent with altered steroidogenesis and oxidative stress. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 199:232-239. [PMID: 29660695 DOI: 10.1016/j.aquatox.2018.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/06/2018] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
Amphibians use wetlands in urban and agricultural landscapes for breeding, growth and development. Fungicides and other pesticides used in these areas have therefore been identified as potential threats that could contribute towards amphibian population declines. However, relatively little is known about how such chemicals influence sensitive early life-stages or how short episodic exposures influence sub-lethal physiological and metabolic pathways. The present study applied untargeted metabolomics to evaluate effects in early post-hatch amphibian larvae exposed to the anti-androgenic fungicides vinclozolin and propiconazole. Recently hatched (Gosner developmental stage 25) striped marsh frog (Limnodynastes peronii) larvae were exposed for 96 h to vinclozolin at 17.5, 174.8 and 1748.6 nM and propiconazole at 5.8, 58.4 and 584.4 nM. Nuclear Magnetic Resonance (NMR) spectroscopy was performed on polar metabolites obtained from whole-body extracts. Both fungicides altered metabolite profiles compared to control animals at all concentrations tested, and there were notable differences between the two chemicals. Overall responses were consistent with altered steroidogenesis and/or cholesterol metabolism, with inconsistent responses between the two fungicides likely reflecting minor differences in the mechanisms of action of these chemicals. Broad down-regulation of the tricarboxylic acid (TCA) cycle was also observed and is indicative of oxidative stress. Interestingly, formic acid was significantly increased in larvae exposed to vinclozolin but not propiconazole, suggesting this metabolite may serve as a useful biomarker of exposure to androgen-receptor binding anti-androgenic contaminants. This study demonstrates the power of untargeted metabolomics for distinguishing between similarly acting, but distinct, pollutants and for unraveling non-endocrine responses resulting from exposure to known endocrine active contaminants.
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Affiliation(s)
- Steven D Melvin
- Australian Rivers Institute, Griffith University, Southport, QLD 4222, Australia.
| | - Frederic D L Leusch
- Australian Rivers Institute, Griffith University, Southport, QLD 4222, Australia; Griffith School of Environment, Griffith University, Southport, QLD 4222, Australia
| | - Anthony R Carroll
- Griffith School of Environment, Griffith University, Southport, QLD 4222, Australia
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