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Jones ER, Griffitt RJ. Oil and hypoxia alter DNA methylation and transcription of genes related to neurological function in larval Cyprinodon variegatus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 251:106267. [PMID: 36058102 DOI: 10.1016/j.aquatox.2022.106267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
DNA methylation is an important epigenetic mark involved in modulating transcription. While multiple studies document the ability of environmental stressors to alter methylation patterns, there is little information regarding the effects of oil and hypoxia on the methylome. Oil and hypoxic stress are threats in coastal ecosystems, which act as nursery habitats for developing fish. To explore the methylation altering effects of oil and hypoxia on developing fish, we exposed larval Cyprinodon variegatus to oil, hypoxia, or both for 48 h followed by 48 h of depuration in clean, normoxic conditions. We then used immunoprecipitation coupled with high-throughput sequencing (MeDIP seq) to evaluate genome-wide methylation changes. We also performed RNA seq to associate methylation and altered transcription. Oil and hypoxia together elicited greater impacts to methylation than either stressor individually. Additionally, the oil+hypoxia treatment exhibited an overlap between differentially methylated regions and differential gene expression at 20 loci. Functional analyses of these loci revealed enrichment of processes related to neurological function and development. Two neurological genes (slc1a2, asxl2) showed altered methylation of promoter CpG islands and transcriptional changes, suggesting epigenetic modulation of gene expression. Our results suggest a possible mechanism explaining altered behavior patterns noted in fish following oil exposure.
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Affiliation(s)
- Elizabeth R Jones
- School of Ocean Science and Engineering, The University of Southern Mississippi, 112 McIlwain Drive, Ocean Springs, MS 39564, USA; Department of Biology, Francis Marion University, 4822 Palmetto Street, Florence, South Carolina, 29506, USA.
| | - Robert J Griffitt
- School of Ocean Science and Engineering, The University of Southern Mississippi, 112 McIlwain Drive, Ocean Springs, MS 39564, USA
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2
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Kim YC, Lee SR, Jeon HJ, Kim K, Kim MJ, Choi SD, Lee SE. Acute toxicities of fluorene, fluorene-1-carboxylic acid, and fluorene-9-carboxylic acid on zebrafish embryos (Danio rerio): Molecular mechanisms of developmental toxicities of fluorene-1-carboxylic acid. CHEMOSPHERE 2020; 260:127622. [PMID: 32673875 DOI: 10.1016/j.chemosphere.2020.127622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
In this study, fluorene (FL), FL-1-carboxylic acid (FC-1), and FL-9-carboxylic acid (FC-9) were investigated to understand their acute toxicity by measuring inhibitory effects on hatching rates and developmental processes of zebrafish embryos (Danio rerio). For exposure concentrations up to 3000 μg/L, FC-1 alone showed acute toxicity at 1458 μg/L for LC50 value. FC-1 caused yolk sac and spinal deformities, and pericardial edema. Molecular studies were undertaken to understand FC-1 toxicity examining 61 genes after exposure to 5 μM (equivalent to LC20 value of FC-1) in embryos. In the FC-1-treated embryos, the expression of the cyp7a1 gene, involved in bile acid biosynthesis, was dramatically decreased, while the expression of the Il-1β gene involved in inflammation was remarkably increased. In addition to these findings, in FC-1-treated embryos, the expression of nppa gene related to the differentiation of the myocardium was 3-fold increased. On the other hand, cyp1a, cyp3a, ugt1a1, abcc4, mdr1, and sult1st1 responsible for detoxification of xenobiotics were upregulated in FC-9-treated embryos. Taken together, carboxylation on carbon 1 of FL increased acute toxicity in zebrafish embryos, and its toxicity might be related to morphological changes with modification of normal biological functions and lowered defense ability.
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Affiliation(s)
- Yong-Chan Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sang-Ryong Lee
- Department of Biological and Environmental Science, Dongguk University, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Hwang-Ju Jeon
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Kyeongnam Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Myoung-Jin Kim
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sung-Deuk Choi
- School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Sung-Eun Lee
- School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
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3
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Maleki S, Hashemi P, Rasolzadeh F, Maleki S, Ghiasvand AR. A Needle Trap Device Packed with Nanoporous Silica Sorbents for Separation and Gas Chromatographic Determination of Polycyclic Aromatic Hydrocarbons in Contaminated Soils. J Chromatogr Sci 2018; 56:771-778. [DOI: 10.1093/chromsci/bmy056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 05/16/2018] [Indexed: 11/15/2022]
Affiliation(s)
- Sara Maleki
- Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad, Iran
| | - Payman Hashemi
- Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad, Iran
| | - Fahimeh Rasolzadeh
- Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad, Iran
| | - Saba Maleki
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
| | - Ali Reza Ghiasvand
- Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad, Iran
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4
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Kristofco LA, Haddad SP, Chambliss CK, Brooks BW. Differential uptake of and sensitivity to diphenhydramine in embryonic and larval zebrafish. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:1175-1181. [PMID: 29274281 DOI: 10.1002/etc.4068] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/17/2017] [Accepted: 12/21/2017] [Indexed: 06/07/2023]
Abstract
The zebrafish fish embryo toxicity (FET) test is increasingly employed for alternative toxicity studies, yet our previous research identified increased sensitivity of zebrafish slightly older than embryos employed in FET methods (0-4 d postfertilization [dpf]). We identified rapid steady-state accumulation of diphenhydramine across zebrafish embryo and larval stages. However, significantly (p < 0.05) lower accumulation was observed at 48 h compared to 96 h in chorionated and dechorionated embryos (0-4 dpf), but not in zebrafish at 7 to 11 and 14 to 18 dpf. Increased uptake and toxicity of diphenhydramine was further observed in zebrafish at 7 to 11 and 14 to 18 dpf compared with 0-4 dpf embryos with chorion or dechorionated, which indicates that differential zebrafish sensitivity with age is associated with accumulation resulting from gill and other toxicokinetic and toxicodynamic changes during development. Environ Toxicol Chem 2018;37:1175-1181. © 2017 SETAC.
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Affiliation(s)
- Lauren A Kristofco
- Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, Texas, USA
| | - Samuel P Haddad
- Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, Texas, USA
| | - C Kevin Chambliss
- Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, Texas, USA
- Department of Chemistry and Biochemistry, Baylor University, Waco, Texas, USA
| | - Bryan W Brooks
- Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, Texas, USA
- Institute of Biomedical Studies, Baylor University, Waco, Texas, USA
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5
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Massarsky A, Prasad G, Di Giulio RT. Total particulate matter from cigarette smoke disrupts vascular development in zebrafish brain (Danio rerio). Toxicol Appl Pharmacol 2018; 339:85-96. [DOI: 10.1016/j.taap.2017.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/09/2017] [Accepted: 12/04/2017] [Indexed: 12/17/2022]
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6
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Kurth D, Krauss M, Schulze T, Brack W. Measuring the internal concentration of volatile organic compounds in small organisms using micro-QuEChERS coupled to LVI–GC–MS/MS. Anal Bioanal Chem 2017; 409:6041-6052. [DOI: 10.1007/s00216-017-0532-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 06/15/2017] [Accepted: 07/19/2017] [Indexed: 11/27/2022]
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7
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Chen J, Li S, Liu M, Lam CWK, Li Z, Xu X, Chen Z, Zhang W, Yao M. Bioconcentration and Metabolism of Emodin in Zebrafish Eleutheroembryos. Front Pharmacol 2017; 8:453. [PMID: 28744218 PMCID: PMC5504456 DOI: 10.3389/fphar.2017.00453] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 06/23/2017] [Indexed: 12/16/2022] Open
Abstract
Emodin is a major active anthraquinone of various herbal laxatives, which can exert many pharmacological effects. However, chronic use of anthranoid laxatives, even at low dosages, may cause melanosis coli (MC). It has been suggested that the accumulation of anthraquinones is a risk factor in the MC process. To investigate the accumulation of emodin, we conducted a bioconcentration study of emodin in zebrafish eleutheroembryos. Based on the economic cooperation and development (OECD) 305 test, zebrafish eleutheroembryos were exposed to emodin at a constant concentration for 48 h, before the test media were replaced by the blank medium for 24 h of depuration. To eliminate the effect of metabolism of emodin for assessment of the bioconcentration factor (BCF), we also conducted a modified test for which zebrafish eleutheroembryos were exposed to the non-renewed test media, whose emodin concentration decreased with time. At different exposure time points, zebrafish eleutheroembryos and exposure media were sampled for analysis of emodin concentration using HPLC-MS/MS. The results showed rapid accumulation of emodin in zebrafish eleutheroembryos to reach a steady-state concentration within 24 h. Meanwhile, emodin was actively metabolized by zebrafish eleutheroembryos to result in 29.5–40.7% of its elimination. In the groups with high or low concentrations of emodin, the standardized BCF (sBCF) values in the standard test were 24.0 and 20.0, while those in the modified test were 50.4 and 52.0. These results showed that emodin could accumulate in zebrafish eleutheroembryos when used for 48 h and beyond, suggesting that the accumulation of anthraquinones may be a risk factor in the MC process. Accordingly, emodin should be unsuitable for long-term use due to its accumulation.
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Affiliation(s)
- Jiefeng Chen
- School of Pharmaceutical Sciences, Sun Yat-sen UniversityGuangzhou, China
| | - Shaodong Li
- Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou, China
| | - Mengping Liu
- School of Pharmaceutical Sciences, Sun Yat-sen UniversityGuangzhou, China
| | - Christopher Wai Kei Lam
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and TechnologyMacau, China
| | - Zheng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and TechnologyMacau, China
| | - Xinjun Xu
- School of Pharmaceutical Sciences, Sun Yat-sen UniversityGuangzhou, China
| | - Zuanguang Chen
- School of Pharmaceutical Sciences, Sun Yat-sen UniversityGuangzhou, China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and TechnologyMacau, China
| | - Meicun Yao
- School of Pharmaceutical Sciences, Sun Yat-sen UniversityGuangzhou, China
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8
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Sørensen L, Sørhus E, Nordtug T, Incardona JP, Linbo TL, Giovanetti L, Karlsen Ø, Meier S. Oil droplet fouling and differential toxicokinetics of polycyclic aromatic hydrocarbons in embryos of Atlantic haddock and cod. PLoS One 2017; 12:e0180048. [PMID: 28678887 PMCID: PMC5497984 DOI: 10.1371/journal.pone.0180048] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 06/08/2017] [Indexed: 01/05/2023] Open
Abstract
The impact of crude oil pollution on early life stages (ELS) of fish, including larvae and embryos, has received considerable attention in recent years. Of the organic components present in crude oil, polycyclic aromatic hydrocarbons (PAHs) are considered the main class of compounds responsible for toxic effects in marine organisms. Although evidence suggests that they are more toxic, alkylated PAHs remain much less studied than their unsubstituted congeners. Recently, it was established that embryos of Atlantic haddock (Melanogrammus aeglefinus) are particularly sensitive to dispersed crude oil, and it was hypothesized that this was caused by direct interaction with crude oil droplets, which adhered to the chorion of exposed embryos. Such a phenomenon would increase the potential for uptake of less water-soluble compounds, including alkylated PAHs. In the current study, we compared the uptake of parent and alkylated PAHs in Atlantic cod (Gadus morhua) and haddock embryos exposed to dispersed crude oil at a range of environmentally relevant concentrations (10–600 μg oil/liter seawater). Although the species are biologically very similar, the cod chorion does not become fouled with oil droplets, even when the two species are exposed to dispersions of crude oil droplets under similar conditions. A close correlation between the degree of fouling and toxicological response (heart defects, craniofacial malformation) was observed. Oil droplet fouling in haddock led to both quantitative and qualitative differences in PAH uptake. Finally, kinetic data on a large suite of PAHs showed differential elimination, suggesting differential metabolism of unsubstituted versus alkylated compounds.
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Affiliation(s)
- Lisbet Sørensen
- Institute of Marine Research, Bergen, Norway
- Department of Chemistry, University of Bergen, Bergen, Norway
- * E-mail:
| | - Elin Sørhus
- Institute of Marine Research, Bergen, Norway
| | - Trond Nordtug
- Environmental Technology, SINTEF Ocean, Trondheim, Norway
| | - John P. Incardona
- National Oceanic and Atmospheric Administration, Northwest Fisheries Science Center, Seattle, Washington, United States of America
| | - Tiffany L. Linbo
- National Oceanic and Atmospheric Administration, Northwest Fisheries Science Center, Seattle, Washington, United States of America
| | - Laura Giovanetti
- Department of Environmental Science, University of Siena, Siena, Italy
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9
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Wang H, Cui L, Cheng H, Zhang Y, Diao X, Wang J. Comparative Studies on the Toxicokinetics of Benzo[a]pyrene in Pinctada martensii and Perna viridis. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 98:649-655. [PMID: 28190134 DOI: 10.1007/s00128-016-2015-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 12/20/2016] [Indexed: 06/06/2023]
Abstract
Research on the kinetics of Benzo[a]pyrene (B[a]P) bioaccumulation in the clam Pinctada martensii and mussel Perna viridis showed that the initial rate of uptake was directly related to the PAH concentrations in the ambient environment. The uptake and depuration rate constants were different at the four B[a]P exposure levels, which indicated that the toxicokinetic rate constants mainly depended on the exposure levels of pollutants to the environment. In addition, the uptake rate constants of B[a]P were higher than the depuration rate constants in the entire experiment. The comparison demonstrated that mussels release B[a]P more rapidly than clams. The bioconcentration factors (BCFs) of B[a]P varied from 3335 to 12892 in the clam and 2373-6235 in the mussel. These findings on the bioaccumulation kinetics for petroleum hydrocarbons, in association with the critical body residue, will be valuable when choosing sensitive organisms to assess the potential ecotoxicological risk to the marine environment.
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Affiliation(s)
- Haihua Wang
- College of Agriculture, Hainan University, Haikou, 570228, China
- Haikou Key Laboratory of Environment Toxicology, Haikou, 570228, China
| | - Lili Cui
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Huamin Cheng
- College of Agriculture, Hainan University, Haikou, 570228, China
- Haikou Key Laboratory of Environment Toxicology, Haikou, 570228, China
| | - Yu Zhang
- College of Environment and Plant Protection, Hainan University, Haikou, 570228, China
- Haikou Key Laboratory of Environment Toxicology, Haikou, 570228, China
| | - Xiaoping Diao
- College of Agriculture, Hainan University, Haikou, 570228, China.
- College of Environment and Plant Protection, Hainan University, Haikou, 570228, China.
- Haikou Key Laboratory of Environment Toxicology, Haikou, 570228, China.
| | - Jun Wang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
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10
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Brox S, Seiwert B, Küster E, Reemtsma T. Toxicokinetics of Polar Chemicals in Zebrafish Embryo (Danio rerio): Influence of Physicochemical Properties and of Biological Processes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:10264-72. [PMID: 27571242 DOI: 10.1021/acs.est.6b04325] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The time-resolved uptake of 17 nonionic and ionic polar compounds (logD ≤ 2) with a diversity of functional groups into zebrafish embryos (ZFE) was studied over 96 h of exposure. Among them were pharmaceuticals, pesticides and plant active ingredients. Uptake rates for the diffusion controlled passive uptake through the ZFE membrane ranged from 0.02 to 24 h(-1) for the nonionic compounds and were slower for ionic compounds (<0.008-0.08 h(-1)). The study compounds did not enrich much in the ZFE (median bioconcentration factor of 1, max. 7). Biotransformation significantly influenced the internal concentration of some of the test compounds over time (benzocaine, phenacetin, metribuzin, phenytoin, thiacloprid, valproic acid). For benzocaine, valproic acid and phenacetin several transformation products (TPs) were observed by LC-MS already at early life-stages (before 28 hpf); for benzocaine the TPs comprised >90% of the initial amount taken up into the ZFE. For six compounds internal concentrations remained very low (rel. int. conc. < 0.2). Besides biotransformation (sulfamethoxazole), poor membrane permeability (cimetidine, colchicine) and also affinity to efflux transporters (atropine and chloramphenicol) are the likely reasons for these low internal concentrations. This study outlines that the uptake of polar compounds into ZFE is influenced by their physicochemical properties. However, biological processes, biotransformation and, likely, efflux can strongly affect the internal concentrations already in early developmental stages of the ZFE. This should be considered in future toxicokinetic modeling. The evaluation of the toxicity of chemicals by ZFE requires toxicokinetic studies of the test compounds and their TPs to increase comparability to effects in fish.
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Affiliation(s)
- Stephan Brox
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ , Permoserstrasse 15, 04318 Leipzig, Germany
| | - Bettina Seiwert
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ , Permoserstrasse 15, 04318 Leipzig, Germany
| | - Eberhard Küster
- Department Bioanalytical Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ , Permoserstrasse 15, 04318 Leipzig, Germany
| | - Thorsten Reemtsma
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ , Permoserstrasse 15, 04318 Leipzig, Germany
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11
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Alharbi HA, Morandi G, Giesy JP, Wiseman SB. Effect of oil sands process-affected water on toxicity of retene to early life-stages of Japanese medaka (Oryzias latipes). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 176:1-9. [PMID: 27104238 DOI: 10.1016/j.aquatox.2016.04.009] [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: 02/08/2016] [Revised: 04/09/2016] [Accepted: 04/11/2016] [Indexed: 06/05/2023]
Abstract
Toxicity of oil sands process-affected water (OSPW) to aquatic organisms has been studied, but effects of co-exposure to OSPW and polycyclic-aromatic hydrocarbons (PAHs), which are an important class of chemicals in tailings ponds used to store OSPW, has not been investigated. The goal of the current study was to determine if organic compounds extracted from the aqueous phase of relatively fresh OSPW from Base-Mine Lake (BML-OSPW) or aged OSPW from Pond 9 experimental reclamation pond (P9-OSPW) modulated toxic potency of the model alkyl-PAH, retene, to early life-stages of Japanese medaka (Oryzias latipes). Embryos were exposed to retene by use of a partition controlled delivery (PCD) system made of polydimethylsiloxane (PDMS) until day of hatch. Incidences of pericardial edema and expression of CYP1A were not significantly greater in larvae exposed only to dissolved organic compounds from either OSPW but were significantly greater in larvae exposed only to retene. Expression of CYP1A and incidences of pericardial edema were significantly greater in larvae co-exposed to retene and 5×equivalent of dissolved organic compounds from BML-OSPW compared to retene alone. However, there was no effect of co-exposure to retene and either a 1×equivalent of dissolved organic compounds from BML-OSPW or 5×equivalent of dissolved organic compounds from P9-OSPW. While there was evidence that exposure to 5×equivalent of dissolved organic compounds from BML-OSPW caused oxidative stress, there was no evidence of this effect in larvae exposed only to retene or co-exposed to retene and a 5×equivalent of dissolved organic compounds from BML-OSPW. These results suggest that oxidative stress is not a mechanism of pericardial edema in early-life stages of Japanese medaka. Relatively fresh OSPW from Base Mine Lake might influence toxicity of alkylated-PAHs to early life stages of fishes but this effect would not be expected to occur at current concentrations of OSPW and is attenuated by aging of OSPW.
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Affiliation(s)
- Hattan A Alharbi
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Garrett Morandi
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - John P Giesy
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada,; Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada; Zoology Department, Center for Integrative Toxicology, Michigan State University, East Lansing, MI, USA; School of Biological Sciences, University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, People's Republic of China.
| | - Steve B Wiseman
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada,.
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Barranco A, Escudero L, Sanz Landaluze J, Rainieri S. Detection of exposure effects of mixtures of heavy polycyclic aromatic hydrocarbons in zebrafish embryos. J Appl Toxicol 2016; 37:253-264. [DOI: 10.1002/jat.3353] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 04/22/2016] [Accepted: 04/26/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Alejandro Barranco
- Food Research Division; AZTI, Parque Tecnológico de Bizkaia, Astondo Bidea 609; 48160 Derio Spain
| | - Laura Escudero
- Department of Analytical Chemistry, Faculty of Chemistry; Universidad Complutense de Madrid, Ciudad Universitaria; 28040 Madrid Spain
| | - Jon Sanz Landaluze
- Department of Analytical Chemistry, Faculty of Chemistry; Universidad Complutense de Madrid, Ciudad Universitaria; 28040 Madrid Spain
| | - Sandra Rainieri
- Food Research Division; AZTI, Parque Tecnológico de Bizkaia, Astondo Bidea 609; 48160 Derio Spain
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13
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Sanz-Landaluze J, Pena-Abaurrea M, Muñoz-Olivas R, Cámara C, Ramos L. Zebrafish (Danio rerio) eleutheroembryo-based procedure for assessing bioaccumulation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:1860-9. [PMID: 25590991 DOI: 10.1021/es504685c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This paper reports on the development and preliminary evaluation of a new bioaccumulation test based on the use of zebrafish (Danio renio) eleutheroembryos (72 h after hatching, corresponding to 144 h post fertilization, hpf) as an alternative to adult fish-based procedures for regulatory purposes regarding REACH application. The proposed test accomplished the OECD 305 guideline and consists of a 48 h uptake period followed by a 24 h depuration step. Bioaccumulation experiments were performed for a selected of hyper hydrophobic chemicals (log Kow> 7.6), that is, PCB 136 and PBDE 154 at two concentration levels corresponding roughly to 1% and 0.1% the chemicaĺs LC50(nominal concentrations of 4.0 and 12.0 μg/L for PCB 136, and 1.0 and 5.0 μg/L PBDE 154, respectively). Toxicokinetic models were used to calculate the bioconcentration factors (BCFs) based on of the chemical concentrations found in the contaminated eleutheroembryos and their surrounding media. The experimentally determined accumulation profiles show bioaccumulation by zebrafish eleutheroembryos of both chemicals, and that the process is more complex than simple water-lipid partition. Calculated log BCFs using a first-order accumulation model(3.97 and 3.73 for PCB 136, and 3.95 and 4.29 for PBDE 154) were in the range of those previously reported in the literature. The suitability of this new nonprotected life stage bioaccumulation protocol for BCF estimation was evaluated by application to widely divergent micropollutants with different accumulation mechanisms. The results were compared with those in the MITE-NITE database for adult rice fish (Oryzias latipes).
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Affiliation(s)
- J Sanz-Landaluze
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense de Madrid , Ciudad Universitaria, 28040 Madrid, Spain
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14
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Brox S, Ritter AP, Küster E, Reemtsma T. Influence of the perivitelline space on the quantification of internal concentrations of chemicals in eggs of zebrafish embryos (Danio rerio). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 157:134-140. [PMID: 25456227 DOI: 10.1016/j.aquatox.2014.10.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 10/06/2014] [Accepted: 10/12/2014] [Indexed: 06/04/2023]
Abstract
The chorion and the perivitelline space which surround unhatched zebrafish embryos (ZFE, Danio rerio) may affect the determination of internal concentrations of study compounds taken up in early life-stages of ZFE. Internal concentration-time profiles were gathered for benzocaine, caffeine, clofibric acid, metribuzin and phenacetin as study compounds over 96 h of exposure starting with ZFE at 4h post-fertilization. Liquid chromatography coupled to tandem-mass spectrometry (LC-MS/MS) was used to determine the concentration of the study compounds from intact (i.e. unhatched), dechorionated and from hatched ZFE. The mass of the study compounds per ZFE was 5-30 ng higher for intact ZFE compared to dechorionated ones. Thus, internal concentrations were overestimated if only intact ZFE were analyzed. Dechorionation of unhatched ZFE after their exposure is proposed to determine the true internal concentration in the embryo. For the compounds studied here the mass of the study compounds determined in unhatched ZFE after a short term (5 min) exposure provided a reasonable estimate of the mass taken up by the chorion and the PVS. This mass can be subtracted from the total mass found in unhatched ZFE to calculate the true internal mass. Estimating the mass in the chorion and the PVS from the concentration of the study compound in the external exposure medium and the volume of the PVS provided no reasonable results.
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Affiliation(s)
- Stephan Brox
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Axel P Ritter
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Eberhard Küster
- Department Bioanalytical Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Thorsten Reemtsma
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany.
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15
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Tu W, Lu B, Niu L, Xu C, Lin C, Liu W. Dynamics of uptake and elimination of pyrethroid insecticides in zebrafish (Danio rerio) eleutheroembryos. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 107:186-91. [PMID: 24952374 DOI: 10.1016/j.ecoenv.2014.05.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 05/12/2014] [Accepted: 05/13/2014] [Indexed: 05/15/2023]
Abstract
Synthetic pyrethroids (SPs) are among the most heavily used insecticides for residential and agricultural applications. Their residues have frequently been detected in aquatic ecosystems. Despite their high aquatic toxicity, their toxicokinetics are still unclear. In this study, the kinetics of uptake and depuration of three SPs, permethrin (PM), bifenthrin (BF) and λ-cyhalothrin (λ-CH), were determined for the first time using zebrafish eleutheroembryo assays. The diastereoisomer selectivity of PM in eleutheroembryos was further examined. The results indicated that three SPs were quickly taken up by eleutheroembryos. The bioaccumulation factors of the SPs ranged from 125.4 to 708.4. The depuration of SPs in zebrafish eleutheroembryos followed the first-order process. The elimination rate constants (k2) of SPs in eleutheroembryos ranged from 0.018 h(-1) to 0.0533 h(-1). The half-lives (t1/2) were in the range 13.0-38.5h. The diastereoisomer fraction (DF) values for PM in the eleutheroembryos estimated at different uptake and depuration times were all significantly greater than the original value (DF=0.43), indicating selective enrichment and elimination of cis-PM relative to trans-PM. These results reveal a high capacity for SP bioconcentration by zebrafish eleutheroembryos, suggesting that SPs possess a highly cumulative risk to fish.
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Affiliation(s)
- Wenqing Tu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Bin Lu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Lili Niu
- IJRC-PTS, MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chao Xu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Chunmian Lin
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Weiping Liu
- IJRC-PTS, MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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16
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Brox S, Ritter AP, Küster E, Reemtsma T. A quantitative HPLC–MS/MS method for studying internal concentrations and toxicokinetics of 34 polar analytes in zebrafish (Danio rerio) embryos. Anal Bioanal Chem 2014; 406:4831-40. [DOI: 10.1007/s00216-014-7929-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 05/16/2014] [Accepted: 05/26/2014] [Indexed: 10/25/2022]
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17
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Determination of polycyclic aromatic hydrocarbons in leather products using solid-phase microextraction coupled with gas chromatography–mass spectrometry. Microchem J 2014. [DOI: 10.1016/j.microc.2013.10.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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