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Oskoei P, Marçal R, Oliveira H, Guilherme S. Hitting two targets with one shot on pesticide genotoxicity assessment - Identifying risk while unveiling ex vivo approach as a throughput tool in gill-breathing animals. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134948. [PMID: 38968824 DOI: 10.1016/j.jhazmat.2024.134948] [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: 02/27/2024] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 07/07/2024]
Abstract
Pesticides in the environment often compromise the ecosystem, thus requiring reliable approaches to assess their effects. Commonly used approaches, such as in vivo, come with several disadvantages, namely in the light of the 3 R's policy. Seeking for accurate and ethical approaches, this study intended to validate the ex vivo technique as an alternative, and to assess the genotoxicity of chemically-based pesticides and a biopesticide. The ex vivo approach was applied to gill cells of Procambarus clarkii for 2, 4 and 8 h. Cell viability and DNA integrity were evaluated to determine the applicability of this approach. Crayfish gill cells only showed to be suitable for exposures of 2 h. Accordingly, genotoxicity was evaluated in gill cells exposed, for 2 h, to environmentally relevant concentrations of the chemically-based pesticides dimethoate (20 µg L-1), imazalil (160 µg L-1) and penoxsulam (23 µg L-1), as well as to the bioinsecticide Turex® (25, 50, 100, 200 and 400 µg L-1). Every chemically-based pesticide demonstrated to be genotoxic, despite not inducing oxidative DNA damage. On the other hand, Turex® showed no genotoxic effects. Overall, the ex vivo approach demonstrated to be possible and practical to implement, improving the number of outcomes with a lower number of organisms. The findings from the screening test suggest that biological pesticides may pose a lower risk to non-target organisms compared to chemically-based pesticides.
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Affiliation(s)
- Párástu Oskoei
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
| | - Raquel Marçal
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Helena Oliveira
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Sofia Guilherme
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
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2
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Abdel-Mohsen HA, Ismail MM, Moussa Moussa R. Hazardous impacts of heavy metal pollution on biometric and biochemical composition of pearl oyster Pinctada radiata from five sites along Alexandria coast, with reference to its potential health risk assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:23262-23282. [PMID: 38418790 PMCID: PMC10997703 DOI: 10.1007/s11356-024-32571-z] [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: 10/23/2023] [Accepted: 02/17/2024] [Indexed: 03/02/2024]
Abstract
This study investigated the effect of heavy metals on the pearl oyster Pinctada radiata from 5 sites along the coast of Alexandria, with focus on its ecological health and potential risks to human consumption. Pollution results showed that Abu-Qir had the highest Cu and Cd values. Montaza and Eastern Harbor had the highest Fe and Pb values, respectively. Statistically, differences in metal concentrations among study sites were significant (p < 0.05). Non-carcinogenic risk (TTHQ) of tested metals and carcinogenic ones of Cd and Pb showed "high risk" on human health by consuming pearl oysters. Morphometric measurements and condition indices were studied to assess growth patterns and health in relation to heavy metals exposure. Key findings showed detectable declines in size and condition index in Eastern Harbor, whereas Abu-Qir recorded the highest values. This condition index performance presented Abu-Qir, Mammora, and Miami as ideal locations for spat collection and oyster rearing, potentially enhancing Egyptian pearl farming. Average values of spatial proximate contents of pearl oyster showed that it was rich in proteins (33.07-58.52%) with low fat content (1.39-1.87%) and carbohydrates (9.72-17.63%). Biochemical composition of pearl oyster demonstrated its high nutritional value which supported its promotion as a functional food for human consumption. The calorie content of pearl oyster was less than 2 Kcal, making this species an alternative source of healthy food to reduce obesity. Regression analysis indicated that Cu, Cd, and Pb had significant effect on 2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity, calories, vitamins, and pigment content of the collected oysters.
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Affiliation(s)
- Hala Ahmed Abdel-Mohsen
- Marine Pollution Laboratory, Environment Department, National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt
| | - Mona Mohamed Ismail
- Taxonomy and Biodiversity of Aquatic Biota Laboratory, Environment Department, National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt
| | - Ragia Moussa Moussa
- Invertebrate Aquaculture Laboratory, Aquaculture Department, National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt.
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3
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Lao Q, Yang L, Liu S, Ma X, Tan D, Li J, Liao B, Wei Y, Pang W, Morais CLM, Liu H. Effects of Benzo ( a) Pyrene and 2,2',4,4'-Tetrabromodiphenyl Ether Exposure on the Thyroid Gland in Rats by Attenuated Total Reflection Fourier-Transform Infrared Spectroscopy. ACS OMEGA 2024; 9:4317-4323. [PMID: 38313510 PMCID: PMC10831854 DOI: 10.1021/acsomega.3c05819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/23/2023] [Accepted: 01/04/2024] [Indexed: 02/06/2024]
Abstract
Benzo[a]pyrene (B[a]P) and 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) are widespread environmental pollutants and can destroy thyroid function. We assessed the biochemical changes in the thyroid tissue of rats exposed to B[a]P and BDE-47 using attenuated total reflection Fourier-transform infrared spectroscopy combined with support vector machine(SVM). After B[a]P and BDE-47 treatment in rats, the structure of thyroid follicles was destroyed and epithelial cells were necrotic, indicating that B[a]P and BDE-47 may lead to changes of the thyroid morphology of the rats. These damages are mainly related to C=O stretch vibrations of lipids (1743 cm-1), as well as the secondary structure of proteins [amide I (1645 cm-1) and amide II (1550 cm-1)], and carbohydrates [C-OH (1138 cm-1), C-O (1106 cm-1, 1049 cm-1, 991 cm-1), C-C (1106 cm-1) stretching] and collagen (phosphodiester stretching at 922 cm-1) vibration modes. When SVM was used for classification, there was a substantial separation between the control and the exposure groups (accuracy = 96%; sensitivity = 98%; specificity = 87%), and there was also a major separation between the exposed groups (accuracy = 93%; sensitivity = 94%; and specificity = 92%).
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Affiliation(s)
- QiuFeng Lao
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
- Liuzhou
People’s Hospital, Liuzhou, Guangxi 545006, China
| | - LiJun Yang
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - ShuZhen Liu
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - XiaoJun Ma
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - DeChan Tan
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - JinBo Li
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - BaoYi Liao
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - YuanFeng Wei
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
| | - WeiYi Pang
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
| | - Camilo L. M. Morais
- Center
for Education, Science and Technology of the Inhamuns Region, State University of Ceará, Tauá 63660-000, Brazil
| | - Hui Liu
- Guangxi
Key Laboratory of Environmental Exposomics and Entire Lifecycle Heath, Guilin Medical University, Guilin, Guangxi 541199, China
- School
of Public Health, Guilin Medical University, Guilin, Guangxi 541199, China
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Smith CD, Payne SE, Morace JL, Nilsen EB. Organohalogenated contaminants in multiple life stages of the Pacific lamprey (Entosphenus tridentatus), Oregon, USA. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122363. [PMID: 37572847 DOI: 10.1016/j.envpol.2023.122363] [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: 06/20/2023] [Revised: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 08/14/2023]
Abstract
Pacific lamprey (Entosphenus tridentatus) are ecologically and culturally important anadromous animals native to the West Coast of the United States. Pacific lamprey populations are in decline, and contaminants may be a contributing factor. Between 2017 and 2021, three life stages of Pacific lamprey and collocated sediment samples were collected in Oregon (larval lamprey, sediment, and returning adult lamprey) and off the coast of Oregon and Washington (ocean juvenile lamprey). Tissue and sediment samples were analyzed for 56 organohalogenated compounds that included legacy pesticides, current use pesticides, polybrominated diphenyl ether congeners, and polychlorinated biphenyl congeners. Organohalogenated compounds were detected in all three Pacific lamprey life stages. The organohalogenated compounds detected in collocated sediment and larval lamprey samples were generally dissimilar, and compounds detected in larval lamprey indicate potential point sources along the rivers. Ocean-caught juvenile lamprey had significantly higher lipid contents than returning adult lamprey, but lipid content and concentrations of select compounds were not strongly correlated. Concentrations of select compounds detected in both ocean juvenile and returning adult lamprey were either not significantly different or were higher in returning adult lamprey. Concentrations of some compounds in returning adult lamprey-which are consumed by Indigenous peoples-exceeded state and national human health consumption thresholds. Collaboration among Tribes and public-sector agencies helped make this study successful.
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Affiliation(s)
- Cassandra D Smith
- U.S. Geological Survey Oregon Water Science Center, 601 SW 2nd Ave, Suite 1950, Portland, OR, 97204, USA.
| | - Sean E Payne
- U.S. Geological Survey Oregon Water Science Center, 601 SW 2nd Ave, Suite 1950, Portland, OR, 97204, USA
| | - Jennifer L Morace
- U.S. Geological Survey Oregon Water Science Center, 601 SW 2nd Ave, Suite 1950, Portland, OR, 97204, USA
| | - Elena B Nilsen
- U.S. Geological Survey Oregon Water Science Center, 601 SW 2nd Ave, Suite 1950, Portland, OR, 97204, USA
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5
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de Pinho JV, Lopes AP, de Almeida Rodrigues P, Ferrari RG, Hauser-Davis RA, Conte-Junior CA. Food safety concerns on polycyclic aromatic hydrocarbon contamination in fish products from estuarine bays throughout the American continent. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159930. [PMID: 36356770 DOI: 10.1016/j.scitotenv.2022.159930] [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: 09/05/2022] [Revised: 10/29/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Estuarine environments are highly productive ecosystems exhibiting high fish biodiversity and richness. Estuarine bays yield significant fisheries catches, making them the target of extractive activities by both artisanal and industrial fisheries. These areas, however, are highly vulnerable to chemical contamination, such as polycyclic aromatic hydrocarbons (PAH) associated with oil spills and other anthropogenic activities, which can jeopardize animal health and consumer welfare. In this context, this systematic review aimed to evaluate PAH levels detected in seafood from estuarine bays throughout the entire American continent and assess potential human health risks. The PICO methodology was applied, and 27 experimental papers were evaluated. The findings indicate that naphthalene and pyrene are routinely detected at high concentrations in several species, such as white mullet and catfish, and that biliary metabolites concentrations tend to be higher than tissue levels. Although the effects of PAH on animal health are well defined due to several decades of assessments, food safety evaluations are still not routine, evidencing a significant knowledge gap and the need for legislative measures based on toxicological data.
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Affiliation(s)
- Júlia Vianna de Pinho
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-598, RJ, Brazil; National Institute of Health Quality Control, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil; Graduate Program in Sanitary Surveillance (PPGVS), National Institute of Health Quality Control (INCQS), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21040-900, RJ, Brazil
| | - Amanda P Lopes
- Programa de Pós-Graduação em Biodiversidade e Saúde, Instituto Oswaldo Cruz/Fiocruz, Brazil; Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil
| | - Paloma de Almeida Rodrigues
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-598, RJ, Brazil; Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil.
| | - Rafaela Gomes Ferrari
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-598, RJ, Brazil; Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil; Agrarian Sciences Center, Department of Zootechnics, Federal University of Paraiba, Paraíba, Brazil
| | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil.
| | - Carlos Adam Conte-Junior
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-598, RJ, Brazil; National Institute of Health Quality Control, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil; Graduate Program in Sanitary Surveillance (PPGVS), National Institute of Health Quality Control (INCQS), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro 21040-900, RJ, Brazil; Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil; Graduate Program in Veterinary Hygiene (PPGHV), Faculty of Veterinary Medicine, Fluminense Federal University (UFF), Vital Brazil Filho, Niteroi 24220-000, RJ, Brazil; Graduate Program in Food Science (PPGCAL), Institute of Chemistry (IQ), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil; Graduate Program in Chemistry (PGQu), Institute of Chemistry (IQ), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil.
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6
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Gairin E, Dussenne M, Mercader M, Berthe C, Reynaud M, Metian M, Mills SC, Lenfant P, Besseau L, Bertucci F, Lecchini D. Harbours as unique environmental sites of multiple anthropogenic stressors on fish hormonal systems. Mol Cell Endocrinol 2022; 555:111727. [PMID: 35863654 DOI: 10.1016/j.mce.2022.111727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/04/2022] [Accepted: 07/13/2022] [Indexed: 10/17/2022]
Abstract
Fish development and acclimation to environmental conditions are strongly mediated by the hormonal endocrine system. In environments contaminated by anthropogenic stressors, hormonal pathway alterations can be detrimental for growth, survival, fitness, and at a larger scale for population maintenance. In the context of increasingly contaminated marine environments worldwide, numerous laboratory studies have confirmed the effect of one or a combination of pollutants on fish hormonal systems. However, this has not been confirmed in situ. In this review, we explore the body of knowledge related to the influence of anthropogenic stressors disrupting fish endocrine systems, recent advances (focusing on thyroid hormones and stress hormones such as cortisol), and potential research perspectives. Through this review, we highlight how harbours can be used as "in situ laboratories" given the variety of anthropogenic stressors (such as plastic, chemical, sound, light pollution, and invasive species) that can be simultaneously investigated in harbours over long periods of time.
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Affiliation(s)
- Emma Gairin
- Marine Eco-Evo-Devo Unit, Okinawa Institute of Science and Technology, 1919-1 Tancha, Onna-Son, Kunigami District, 904-0495, Okinawa, Japan.
| | - Mélanie Dussenne
- Sorbonne Université, CNRS UMR Biologie Intégrative des Organismes Marins (BIOM), F-66650, Banyuls-sur-Mer, France
| | - Manon Mercader
- Marine Eco-Evo-Devo Unit, Okinawa Institute of Science and Technology, 1919-1 Tancha, Onna-Son, Kunigami District, 904-0495, Okinawa, Japan
| | - Cécile Berthe
- Laboratoire d'Excellence "CORAIL", France; PSL Université Paris, EPHE-UPVD-CNRS, UAR3278 CRIOBE, 98729, Moorea, French Polynesia
| | - Mathieu Reynaud
- Marine Eco-Evo-Devo Unit, Okinawa Institute of Science and Technology, 1919-1 Tancha, Onna-Son, Kunigami District, 904-0495, Okinawa, Japan; PSL Université Paris, EPHE-UPVD-CNRS, UAR3278 CRIOBE, 98729, Moorea, French Polynesia
| | - Marc Metian
- International Atomic Energy Agency - Environment Laboratories, 4a Quai Antoine 1er, MC, 98000, Principality of Monaco, Monaco
| | - Suzanne C Mills
- Laboratoire d'Excellence "CORAIL", France; PSL Université Paris, EPHE-UPVD-CNRS, UAR3278 CRIOBE, 98729, Moorea, French Polynesia
| | - Philippe Lenfant
- Université de Perpignan Via Domitia, Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, 58 Avenue Paul Alduy, F-66860, Perpignan, France
| | - Laurence Besseau
- Sorbonne Université, CNRS UMR Biologie Intégrative des Organismes Marins (BIOM), F-66650, Banyuls-sur-Mer, France
| | - Frédéric Bertucci
- Functional and Evolutionary Morphology Lab, University of Liège, 4000, Liege, Belgium
| | - David Lecchini
- Laboratoire d'Excellence "CORAIL", France; PSL Université Paris, EPHE-UPVD-CNRS, UAR3278 CRIOBE, 98729, Moorea, French Polynesia
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Liang X, Wang Y, Liu L, Zhang X, Li L, Tang R, Li D. Acute nitrite exposure interferes with intestinal thyroid hormone homeostasis in grass carp (Ctenopharyngodon idellus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 237:113510. [PMID: 35468440 DOI: 10.1016/j.ecoenv.2022.113510] [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: 09/05/2021] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Nitrite in the aquatic environment potentially disturbs thyroid hormone (TH) homeostasis in peripheral tissues, but little is known about TH metabolism in the intestine. This study investigated the serum concentrations of THs and thyroid-stimulating hormone (TSH) as well as the activity of intestinal iodothyronine deiodinases (IDs) of grass carp (Ctenopharyngodon idellus) exposed to various concentrations of nitrite (0, 8, 25, or 50 mg/L) for 96 h. Acute nitrite exposure significantly altered the triiodothyronine (T3) levels and the morphology of thyroid follicles at 96 h. Thyroxine (T4), free T4 levels and intestinal IDs activities showed an increase trend under nitrite stress. After 96 h exposure, nitrite down-regulated the expressions levels of intestinal Akt1 protein, sugar transporter genes, and thyroid hormone receptor (TR) signaling pathway genes except for tr ɑ1 and tr ɑ2. Moreover, the expressions levels of pparγ, cpt1α, cd36, fabp2 and fatp4 were down-regulated, whereas fabp6 and lpl were up-regulated in the 50 mg/L exposure group at 96 h. The results indicate that acute nitrite exposure has the potential to disturb the homeostasis of intestinal TH metabolism, which in turn alters TRs genes transcription, down-regulates sugar transporter activities, and promotes the energy expenditure in gut of grass carp.
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Affiliation(s)
- Xiao Liang
- College of Fisheries, Huazhong Agricultural University; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China; Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yin Wang
- College of Fisheries, Huazhong Agricultural University; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Lu Liu
- College of Fisheries, Huazhong Agricultural University; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Xi Zhang
- College of Fisheries, Huazhong Agricultural University; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Li Li
- College of Fisheries, Huazhong Agricultural University; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Rong Tang
- College of Fisheries, Huazhong Agricultural University; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China.
| | - Dapeng Li
- College of Fisheries, Huazhong Agricultural University; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China.
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8
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Saha S, Chukwuka AV, Mukherjee D, Dhara K, Pal P, Saha NC. Physiological (haematological, growth and endocrine) and biochemical biomarker responses in air-breathing catfish, Clarias batrachus under long-term Captan® pesticide exposures. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 90:103815. [PMID: 35065295 DOI: 10.1016/j.etap.2022.103815] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
The sub-lethal toxicity of Captan® on selected haematological (Hemoglobin, Haematocrit, Mean Corpuscular Hemoglobin) growth (Condition factor, Hepatosomatic Index, Specific Growth Rate), biochemical (serum glucose, protein), and endocrine parameters (growth hormone, T3 and T4) in Clarias batrachus was examined under chronic exposures. Captan® was administered at predetermined exposure concentrations (0.53 and 1.06 mg/L) and monitored on days 15, 30, and 45 of the experimental periods. The experimental groups showed significantly lower values (p < 0.05) of haemoglobin content, hematocrit, MCH in Captan® exposed fish compared to control. Serum protein, k-factor and SGR were significantly lower in exposed fish. Endocrine responses (T3 and T4) emerged as the most sensitive biomarker category, depicting modulated responses between sub-chronic exposure at day-15 and chronic responses at day-45. In general, biomarker depictions indicate that Captan® exposures are capable of inducing stress-specific effects at the biochemical and physiological levels negatively impacting the overall health and longevity of such animals.
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Affiliation(s)
- Shubhajit Saha
- Department of Zoology, Sundarban Hazi Desarat College, Pathankhali, South 24 Parganas, 743611 West Bengal, India
| | - Azubuike V Chukwuka
- National Environmental Standards and Regulations Enforcement Agency (NESREA), Osogbo, Osun State, Nigeria.
| | - Dip Mukherjee
- Department of Zool ogy, S.B.S. Government College, Hili, Mera Aptair, Balurghat, Dakshin Dinajpur 733126, West Bengal, India
| | - Kishore Dhara
- Freshwater Fisheries Research & Training Centre, Directorate of Fisheries, Kulia, Kalyani, Nadia 741235, West Bengal, India
| | - Prasenjit Pal
- College of Fisheries, Central Agricultural University (I), Lembucherra, Tripura 799210, India
| | - Nimai Chandra Saha
- Fishery and Ecotoxicology Research Laboratory, Department of Zoology, University of Burdwan, Purba Barddhaman, West Bengal, India.
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9
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Mousavi A, Salamat N, Safahieh A. Phenanthrene disrupting effects on the thyroid system of Arabian seabream, Acanthopagrus arabicus: In situ and in vivo study. Comp Biochem Physiol C Toxicol Pharmacol 2022; 252:109226. [PMID: 34756986 DOI: 10.1016/j.cbpc.2021.109226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/18/2021] [Accepted: 10/27/2021] [Indexed: 11/18/2022]
Abstract
Phenanthrene, a polycyclic aromatic hydrocarbon (PAH), is one of the endocrine disrupting chemicals (EDCs). The present study aimed to evaluate the effects of phenanthrene on histophysiology of thyroid in Arabian seabream (Acanthopagrus arabicus). In this regards, different concentrations of phenanthrene (2, 20 and 40 pg/gbw) were injected to Acanthopagrus arabicus and changes in thyroid tissue structure and the serum levels of triiodothyronine (T3) and Thyroxine (T4) were assessed. The experiment lasted 21 days. Alterations in thyroid tissue structure and T3 and T4 serum levels also were assessed in Acanthopagrus arabicus caught from different stations of the Persian Gulf (Jafari, Samail, Arvand, Zangi, Bahrakan). In addition, the concentration of phenanthrene was measured in the fish muscle and sediment samples from the stations. Phenanthrene concentration reached the maximum level in the muscle of all injected fish after 4 days and then decreased by the end of the experiment. The highest and lowest concentrations of phenanthrene were recorded in the fish muscle and sediment samples collected from Jafari and Bahrakan, respectively. The levels of T3 and T4 decreased dose dependently in phenanthrene-injected fish up to day 7 and then increased by the end of the experiment. The serum level of T3 and T4 in fish collected from different stations was as follows: Jafari<Samail<Arvand<Zangi≤Bahrakan. Some tissue changes observed in fish included decrease in the thickness of thyroid follicle epithelium and increase in follicle diameter. In conclusion, according to the results, phenanthrene significantly affected thyroid function in fish.
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Affiliation(s)
- Asieh Mousavi
- Department of Marine Biology, Faculty of Marine Science, Khorramshahr University of Marine Science and Technology, Khorramshahr, Khuzestan, Iran
| | - Negin Salamat
- Department of Marine Biology, Faculty of Marine Science, Khorramshahr University of Marine Science and Technology, Khorramshahr, Khuzestan, Iran.
| | - Alireza Safahieh
- Department of Marine Biology, Faculty of Marine Science, Khorramshahr University of Marine Science and Technology, Khorramshahr, Khuzestan, Iran
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10
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Birgersson L, Jouve J, Jönsson E, Asker N, Andreasson F, Golovko O, Ahrens L, Sturve J. Thyroid function and immune status in perch (Perca fluviatilis) from lakes contaminated with PFASs or PCBs. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 222:112495. [PMID: 34265536 DOI: 10.1016/j.ecoenv.2021.112495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 07/02/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
The environment contains a multitude of man-made chemicals, some of which can act as endocrine disruptors (EDCs), while others can be immunotoxic. We evaluated thyroid disruption and immunotoxic effects in wild female perch (Perca fluviatilis) collected from two contaminated areas in Sweden; one site contaminated with per- and polyfluoroalkyl substances (PFASs) and two sites contaminated with polychlorinated biphenyls (PCBs), with one reference site included for each area. The hepatic mRNA expression of thyroid receptors α and β, and the thyroid hormone metabolising iodothyronine deiodinases (dio1, dio2 and dio3) were measured using real-time PCR, while the levels of thyroid hormone T3 in plasma was analysed using a radioimmunoassay. In addition, lymphocytes, granulocytes, and thrombocytes were counted microscopically. Our results showed lower levels of T3 as well as lower amounts of lymphocytes and granulocytes in perch collected from the PFAS-contaminated site compared to reference sites. In addition, expressions of mRNA coding for thyroid hormone metabolising enzymes (dio2 and dio3) and thyroid receptor α (thra) were significantly different in these fish compared to their reference site. For perch collected at the two PCB-contaminated sites, there were no significant differences in T3 levels or in expression levels of the thyroid-related genes, compared to the reference fish. Fish from one of the PCB-contaminated sites had higher levels of thrombocytes compared with both the second PCB lake and their reference lake; hence PCBs are unlikely to be the cause of this effect. The current study suggests that lifelong exposure to PFASs could affect both the thyroid hormone status and immune defence of perch in the wild.
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Affiliation(s)
- Lina Birgersson
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, SE-405 30 Göteborg, Sweden
| | - Justin Jouve
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, SE-405 30 Göteborg, Sweden
| | - Elisabeth Jönsson
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, SE-405 30 Göteborg, Sweden
| | - Noomi Asker
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, SE-405 30 Göteborg, Sweden
| | - Fredrik Andreasson
- Department for Nature and Climate, County Administrative Board of Blekinge, SE-371 86 Karlskrona, Sweden
| | - Oksana Golovko
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), SE-75 007 Uppsala, Sweden
| | - Lutz Ahrens
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), SE-75 007 Uppsala, Sweden
| | - Joachim Sturve
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, SE-405 30 Göteborg, Sweden.
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11
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Lyons K, Wynne-Edwards KE. Sublethal, sex-specific, osmotic, and metabolic impairments in embryonic and adult round stingrays from a location exposed to environmental contamination in southern California, USA. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:27493-27510. [PMID: 33511533 PMCID: PMC8164579 DOI: 10.1007/s11356-021-12546-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Organic contaminants are known to affect a suite of physiological processes across vertebrate clades. However, despite their ancient lineage and important roles in maintaining healthy ecosystems, elasmobranchs (sharks, skates, and rays) are understudied with regard to sublethal effects of contaminant exposure on metabolic processes. Perturbations resulting from contaminant exposure can divert energy away from maintaining physiological homeostasis, particularly during energetically challenging life stages, such as pregnancy and embryonic development. Using the round stingray (Urobatis halleri) as a model elasmobranch species, we captured adult males and pregnant females (matrotrophic histotrophy) and their embryos from two populations differing in their environmental exposure to organic contaminants (primarily polychlorinated biphenyls (PCBs)). Pregnant females from the PCB-exposed population experienced significant decreases from early- to late-pregnancy in tissue mass and quality not seen in reference females. PCB-exposed pregnant females also failed to maintain plasma urea concentrations as pregnancy progressed, which was accompanied by a loss in muscle protein content. Despite the energetic demands of late-term pregnancy, females had significantly greater liver lipid content than reproductively inactive adult males. PCB-exposed adult males also had high metabolic capacity (i.e., enzyme activity) for most substrate groupings of all sex-site groups, suggesting that males may be even more negatively impacted by contaminant exposure than pregnant females. Evidence that in utero exposure to PCBs via maternal offloading impairs embryo outcomes is accumulating. Embryos from the PCB-contaminated site had lower tissue quality measures and indications that sex-based differences were manifesting in utero as males had higher metabolic capacities than females. This study indicates that accumulated PCB contaminants are not physiologically inert in the stingray.
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Affiliation(s)
- Kady Lyons
- Department of Biological Sciences, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada.
- Georgia Aquarium, 225 Baker St NW, Atlanta, GA, 30313, USA.
| | - Katherine E Wynne-Edwards
- Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Dr. NW, Calgary, AB, T2N 4Z6, Canada
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12
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Korkmaz N, Örün İ. Effects of pesticide NeemAzal-T/S on thyroid, stress hormone and some cytokines levels in freshwater common carp, Cyprinus carpio L. TOXIN REV 2021. [DOI: 10.1080/15569543.2021.1895841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nuh Korkmaz
- Department of Biology, Faculty of Arts and Sciences, Osmaniye Korkut Ata University, Osmaniye, Turkey
| | - İbrahim Örün
- Department of Biology, Faculty of Science and Letters, Aksaray University, Aksaray, Turkey
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13
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Bartalini A, Muñoz-Arnanz J, Baini M, Panti C, Galli M, Giani D, Fossi MC, Jiménez B. Relevance of current PCB concentrations in edible fish species from the Mediterranean Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 737:139520. [PMID: 32531508 DOI: 10.1016/j.scitotenv.2020.139520] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Legal restrictions and bans have led to a steady decrease in PCB environmental concentrations. Yet, in recent years PCBs have been found at very high levels in the Mediterranean Sea, for instance, in some apex predators. This work aimed to investigate current PCB (eighteen congeners: #28,52,77,81,101,105,114,118,123,126,138,153,156,157,167,169,180,189) concentrations in the Mediterranean Sea and their relevance today, focusing on their occurrence in edible fish species typically consumed in the Mediterranean diet. In spring 2017, a total of 48 fish samples from the Northern Thyrrenian Sea were collected: 16 specimens of sardine (Sardina pilchardus), 16 of anchovy (Engraulis encrasicolus) and 16 of bogue (Boops boops). PCBs were quantified in the muscle of the animals by means of GC-QqQ-MS. They were found in all samples at the greatest concentrations (ng/g w.w.) in sardine (4.15-17.9, range), and very similar values between anchovy (1.01-7.08) and bogue (1.46-7.22). WHO-TEQ PCB values followed the same order, i.e. sardine (0.410-1.24, range in pg/g w.w.) > anchovy (0.0778-0.396) ~ bogue (0.0726-0.268). These concentrations lied below the European limits of 75 ng/g (w.w.) for the six indicator PCBs and 6.5 pg/g WHO-TEQ for dioxins and dioxin-like PCBs in muscle meat of fish. Additionally, estimated weekly intakes (EWI, in pg WHO-TEQ/Kg/week) for sardine (1.2), anchovy (0.29) and bogue (0.35) scored below the safe value proposed by EFSA of 2 pg WHO-TEQ/Kg/week. When comparing with data reported for the same species in previous Mediterranean studies, values found here were lower than those surveyed in the late 90s and early 2000s; however, they were often not notably different from concentrations reported in last years. This builds up on the concept of a current slow decrease of PCBs in the Mediterranean Sea, likely linked to new inputs and/or remobilization of burdens, and reinforces the need of continous monitoring of these legacy contaminants still ubiquitous today.
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Affiliation(s)
- A Bartalini
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy; Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC, Juan de la Cierva 3, Madrid, Spain
| | - J Muñoz-Arnanz
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC, Juan de la Cierva 3, Madrid, Spain.
| | - M Baini
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - C Panti
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - M Galli
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - D Giani
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - M C Fossi
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - B Jiménez
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC, Juan de la Cierva 3, Madrid, Spain
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14
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Pinheiro MDO, Simmons DBD, Villella M, Tetreault GR, Muir DCG, McMaster ME, Hewitt LM, Parrott JL, Park BJ, Brown SB, Sherry JP. Brown bullhead at the St. Lawrence River (Cornwall) Area of Concern: health and endocrine status in the context of tissue concentrations of PCBs and mercury. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:404. [PMID: 32472215 DOI: 10.1007/s10661-020-08355-6] [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: 11/11/2019] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
The St. Lawrence River, at Cornwall Ontario, has accumulated sediment contaminants, mainly mercury (Hg) and polychlorinated biphenyls (PCBs), from industrial point sources over many years. Although those sources are past, the river at Cornwall remains an Area of Concern (AOC). Because of remediation and other changes in the AOC, improved knowledge of contaminants in wild-fish and their putative links to health effects could help decision makers to better assess the AOC's state. Thus, we compared tissue concentrations of Hg, PCBs, morphometric measures of health, and biomarkers of exposure, metabolic-, and reproductive health in native brown bullhead (Ameiurus nebulosus) from the AOC to those of upstream reference fish. Linear discriminant analysis separated the adult fish of both sexes among upstream and downstream sites without misclassification. Burdens of total-Hg (all sites) and PCB toxic equivalents (downstream sites) exceeded the guidance for the protection of wildlife consumers. There were subtle effects of site on physiological variables, particularly in female fish. Total-Hg in tissue correlated negatively to plasma testosterone and 17β-estradiol in female fish at Cornwall: moreover, concentrations of both hormones were lower within the AOC compared to reference site fish. A similar effect on vitellogenin, which was uncorrelated to E2/T at the downstream sites, indicated the potential for reproductive effects. Downstream fish also had altered thyroidal status (T3, TSH, and ratio of thyroid epithelial cell area to colloid area). Despite spatial and temporal variability of the endocrine-related responses, these subtle effects on fish health within the AOC warrant further study.
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Affiliation(s)
- M D O Pinheiro
- Department of Biology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - D B D Simmons
- Faculty of Science, Ontario Technical University, Oshawa, Ontario, L1G 0C5, Canada
| | - M Villella
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, National Water Research Institute, Burlington, ON, L7S 1A1, Canada
| | - G R Tetreault
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, National Water Research Institute, Burlington, ON, L7S 1A1, Canada
| | - D C G Muir
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, National Water Research Institute, Burlington, ON, L7S 1A1, Canada
| | - M E McMaster
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, National Water Research Institute, Burlington, ON, L7S 1A1, Canada
| | - L M Hewitt
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, National Water Research Institute, Burlington, ON, L7S 1A1, Canada
| | - J L Parrott
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, National Water Research Institute, Burlington, ON, L7S 1A1, Canada
| | - B J Park
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5B3, Canada
| | - S B Brown
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, National Water Research Institute, Burlington, ON, L7S 1A1, Canada
| | - J P Sherry
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, National Water Research Institute, Burlington, ON, L7S 1A1, Canada.
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15
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Miranda AF, Trestrail C, Lekamge S, Nugegoda D. Effects of perfluorooctanoic acid (PFOA) on the thyroid status, vitellogenin, and oxidant-antioxidant balance in the Murray River rainbowfish. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:163-174. [PMID: 31938948 DOI: 10.1007/s10646-020-02161-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/03/2020] [Indexed: 06/10/2023]
Abstract
Perfluorooctanoic acid's (PFOA) widespread use, presence and persistence in the aquatic environment has led to an increasing number of studies focusing on its toxicological effects. In Australia, PFOA has been detected in the aquatic environment, however its effects on Australian native fauna are unknown. In this study, male Australian native fish Murray River rainbowfish (Melanotaenia fluviatilis) were exposed to four different concentrations of PFOA (0.01, 0.1, 1 and 10 mg L-1). Variations in thyroid hormones (Triiodothyronine (T3)/Thyroxine (T4)) and the presence of vitellogenin were determined in plasma. Oxidative stress responses were evaluated in gills and liver. Exposure of male fish to PFOA resulted in altered T3/T4 ratios and the presence of vitellogenin in the plasma. Activities of catalase (CAT) and glutathione- S-transferase (GST) were significantly increased in the gills and significantly reduced in the liver. Lipid peroxidation was observed in both tissues showing that vital organs could not neutralize the peroxides generated by oxidative stress resulting from exposure to PFOA. In natural populations exposed to PFOA, such hormonal disturbances can have negative effects, notably through altered capacity to respond to changes in environmental conditions.
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Affiliation(s)
- Ana F Miranda
- Ecotoxicology Research Group, School of Science, RMIT University, Bundoora West Campus, Melbourne, VIC, 3083, Australia.
| | - Charlene Trestrail
- Ecotoxicology Research Group, School of Science, RMIT University, Bundoora West Campus, Melbourne, VIC, 3083, Australia
| | - Sam Lekamge
- Ecotoxicology Research Group, School of Science, RMIT University, Bundoora West Campus, Melbourne, VIC, 3083, Australia
| | - Dayanthi Nugegoda
- Ecotoxicology Research Group, School of Science, RMIT University, Bundoora West Campus, Melbourne, VIC, 3083, Australia
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16
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Lyons K, Wynne-Edwards KE. Legacy polychlorinated biphenyl contamination impairs male embryonic development in an elasmobranch with matrotrophic histotrophy, the round stingray (Urobatis halleri). ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:2904-2911. [PMID: 30125983 DOI: 10.1002/etc.4255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 05/19/2018] [Accepted: 08/13/2018] [Indexed: 06/08/2023]
Abstract
Anthropogenic chemical exposure can result in overall reductions in reproductive success. Using the round stingray (Urobatis halleri) as an elasmobranch model with internal gestation, we measured female fecundity and embryo growth from postovulation to near parturition to test the hypothesis that environmental polychlorinated biphenyl (PCB) contamination would impair reproductive success. Two sites were sampled from southern California, USA: the mainland site was exposed to legacy PCB contamination (with low exposure to other anthropogenic contaminants), and the offshore reference site at Catalina Island was a separate population with low anthropogenic influence. Contaminant-exposed embryos weighed less at each stage of development than reference embryos, while accumulating proportionately more liver mass over development. Furthermore, environmental contamination negatively affected male embryos more than female embryos. The present study is the first study to demonstrate a negative effect of contaminant exposure on elasmobranch embryo growth, with probable fitness costs later in life. Environ Toxicol Chem 2018;37:2904-2911. © 2018 SETAC.
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Affiliation(s)
- Kady Lyons
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada
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17
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Rehberger K, Baumann L, Hecker M, Braunbeck T. Intrafollicular thyroid hormone staining in whole-mount zebrafish (Danio rerio) embryos for the detection of thyroid hormone synthesis disruption. FISH PHYSIOLOGY AND BIOCHEMISTRY 2018; 44:997-1010. [PMID: 29568982 DOI: 10.1007/s10695-018-0488-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 02/26/2018] [Indexed: 06/08/2023]
Abstract
Endocrine-disrupting chemicals are known to impact multiple hormonal axes of vertebrates, among which the thyroid system is crucial for multiple developmental and physiological processes. Thus, the present study focused on the semi-quantitative visualization of intrafollicular triiodothyronine (T3) and thyroxin (T4) in zebrafish embryos as a potential test system for the detection of disrupted thyroid hormone synthesis. To this end, an antibody-based fluorescence double-staining protocol for whole-mount zebrafish embryos and larvae was adapted to simultaneously detect intrafollicular T3 and T4. During normal development until 10 days post-fertilization (dpf), the number of thyroid follicles increased along the ventral aorta. Concentrations of T4 and T3, measured by fluorescence intensity, increased until 6 dpf, but decreased thereafter. Exposure of zebrafish embryos to propylthiouracil (PTU), a known inhibitor of TH synthesis, resulted in a significant decrease in the number of follicles that stained for T3, whereas a trend for increase in follicles that stained for T4 was observed. In contrast, fluorescence intensity for both thyroid hormones decreased significantly after exposure to PTU. Overall, the zebrafish embryo appears to be suitable for the simultaneous visualization and detection of changing intrafollicular TH contents during normal development and after PTU treatment.
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Affiliation(s)
- Kristina Rehberger
- Centre for Organismal Studies, Aquatic Ecology and Toxicology, University of Heidelberg, Im Neuenheimer Feld 504, 69120, Heidelberg, Germany
- Vetsuisse Faculty, Centre for Fish and Wildlife Health, University of Bern, Länggassstrasse122, 3012, Bern, Switzerland
| | - Lisa Baumann
- Centre for Organismal Studies, Aquatic Ecology and Toxicology, University of Heidelberg, Im Neuenheimer Feld 504, 69120, Heidelberg, Germany.
| | - Markus Hecker
- School of the Environment & Sustainability and Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, S7N 5B3, Canada
| | - Thomas Braunbeck
- Centre for Organismal Studies, Aquatic Ecology and Toxicology, University of Heidelberg, Im Neuenheimer Feld 504, 69120, Heidelberg, Germany.
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18
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Chang Y, Bai Y, Huo Y, Qu J. Benzophenone-4 Promotes the Growth of a Pseudomonas sp. and Biogenic Oxidation of Mn(II). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:1262-1269. [PMID: 29336564 DOI: 10.1021/acs.est.7b05014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Interactions between microbes and micropollutants (MPs) play a crucial role in water purification or treatment. Current studies have generally focused on the direct degradation or cometabolism of MPs. Considering the increasing interest in and importance of the roles of MPs in microbial metabolism, we adopted an Mn(II)-oxidizing Pseudomonas sp. QJX-1 using tyrosine (Tyr) as the sole carbon and nitrogen source to investigate the effects of seven MPs on its growth and function. Six MPs exhibited an inhibition effect on bacterial growth and Mn(II) oxidation. Only benzophenone-4 (BP-4) promoted the growth of QJX-1 and biogenic oxidation Mn(II), but its concentration was not directly coupled to growth, which was unexpected. RNA-seq data suggested that the addition of BP-4 did not significantly change the basic metabolic function of QJX-1, but stimulated the upregulation of the pyruvate and gluconeogenesis metabolic pathways of Tyr for QJX-1 growth. Furthermore, protein identification and extracellular superoxide detection indicated that Mn(II) oxidation was largely driven by the formation of superoxide in response to Tyr starvation; the acceleration of superoxide production, due to BP-4 accelerating Tyr consumption, was responsible for the promotion effect of BP-4 on QJX-1 Mn(II) oxidation. Our findings highlight the dual effects that MPs can have on the growth and function of a single strain in aquatic ecosystem, i.e., the coexistence of inhibition and promotion.
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Affiliation(s)
- Yangyang Chang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology , Dalian 116024, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Yaohui Bai
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
| | - Yang Huo
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
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19
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Kelishadi R, Sobhani P, Poursafa P, Amin MM, Ebrahimpour K, Hovsepian S, Mansourian M, Najafi R, Hashemipour M. Is there any association between urinary metabolites of polycyclic aromatic hydrocarbons and thyroid hormone levels in children and adolescents? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:1962-1968. [PMID: 29105036 DOI: 10.1007/s11356-017-0577-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 10/24/2017] [Indexed: 05/22/2023]
Abstract
Considering the possible effects of polycyclic aromatic hydrocarbons (PAHs) on thyroid function, the current study aims to investigate the association of PAH urinary metabolites with the level of thyroid hormones in a sample of Iranian children and adolescents. This cross-sectional study was conducted from September 2015 to July 2016 in Isfahan, Iran. Participants were 150 students, aged 6-18 years, who were selected by multistage cluster random sampling from schools of Isfahan province. Blood and urine samples of participants were obtained for measurement of thyroid hormone levels (measured by immunoradiometric assay) and PAH urinary metabolites, including 1-hydroxynaphthalene, 2-hydroxynaphthalene, 9-hydroxyphenanthrene, and 1-hydroxypyrene. The association of serum thyroid-stimulating hormone (TSH) and PAH urinary metabolites was determined by correlation and regression analyses. Multivariate regression analysis revealed significant association between serum TSH and PAH urinary metabolites; this association remained significant after adjustment for gender and age. The corresponding figures were r = 0.85 for 1-naphthol, r = 0.86 for 2-naphthol, r = 0.87 for 1-hydroxypyrene, and r = 0.42 for 9-phenantrol, respectively, all p values < 0.001. The mean levels of 1-hydroxypyrene and 9-phenanthrol were higher in boys than those in girls (p < 0.05). The findings of this study indicated significant positive association between urinary PAH biomarkers and the TSH level in children and adolescents. It can be suggested that long-term exposure to PAHs might result in thyroid function impairment. The clinical implication of the current findings should be confirmed by future longitudinal studies.
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Affiliation(s)
- Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Payam Sobhani
- Imam Hossein Hospital, Department of Pediatrics, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parinaz Poursafa
- Department of Environmental Health Engineering, Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Mehdi Amin
- Department of Environmental Health Engineering, Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Karim Ebrahimpour
- Department of Environmental Health Engineering, Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Silva Hovsepian
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marjan Mansourian
- Department of Biostatistics and Epidemiology, Faculty of Health, Isfahan University of Medical Science, Isfahan, Iran
| | - Reza Najafi
- Department of Pediatric Endocrinology and Metabolism, Ilam University of Medical Sciences, Ilam, Iran
| | - Mahin Hashemipour
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
- Imam Hossein Hospital, Department of Pediatrics, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
- Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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20
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Rossi M, Taddei AR, Fasciani I, Maggio R, Giorgi F. The cell biology of the thyroid-disrupting mechanism of dichlorodiphenyltrichloroethane (DDT). J Endocrinol Invest 2018. [PMID: 28639207 DOI: 10.1007/s40618-017-0716-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Dichlorodiphenyltrichloroethane (DDT) is an organochlorine known for its pesticide properties and for its negative effects on human health. It was banned in most countries for its toxicity to the endocrine system, but due to its persistence at clinically relevant concentrations in both soil and animal tissues, DDT is still linked to several health and social problems. METHODS We have previously shown that DDT exposure is causally related to the extracellular release of vesicular organelles such as microvesicles and/or exosomes by using immunocytochemistry with gold-tagged antibodies and various fluorescent membrane markers. RESULTS It is now well recognized that microvesicles and/or exosomes organelles are implicated in cell-to-cell communication, and that they are fundamental elements for transferring proteins, RNA, DNA, lipids and transcriptional factors among cells. In this short review, we discussed the role of extracellular vesicle formation in the thyroid-disrupting mechanism of DDT. In particular, we described how DDT, by dislodging the thyrotropin hormone (TSH) receptor from the raft containing compartments of the cells, prevents its activation and internalization. CONCLUSION Based on our earlier finding and on the large body of evidence here reviewed, we propose that DDT-induced formation of extracellular vesicles containing the TSH receptor could be directly involved in the development of autoimmune responses against the TSH receptor and that, therefore, their release could lead to the development of the Graves' disease.
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Affiliation(s)
- M Rossi
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - A R Taddei
- Section of Electron Microscopy, Great Equipment Center, University of Tuscia, Viterbo, Italy
| | - I Fasciani
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - R Maggio
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
| | - F Giorgi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
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21
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Matthiessen P, Wheeler JR, Weltje L. A review of the evidence for endocrine disrupting effects of current-use chemicals on wildlife populations. Crit Rev Toxicol 2017; 48:195-216. [DOI: 10.1080/10408444.2017.1397099] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | - Lennart Weltje
- BASF SE, Crop Protection – Ecotoxicology, Limburgerhof, Germany
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22
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Chen L, Wang X, Zhang X, Lam PKS, Guo Y, Lam JCW, Zhou B. Transgenerational endocrine disruption and neurotoxicity in zebrafish larvae after parental exposure to binary mixtures of decabromodiphenyl ether (BDE-209) and lead. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017. [PMID: 28649046 DOI: 10.1016/j.envpol.2017.06.053] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) and heavy metals are two key groups of electric and electronic equipment contaminants. Despite their co-occurrence in aquatic environments, their combined effects remain largely unknown, particularly under a chronic exposure regime. In the present study, adult zebrafish (Danio rerio) were exposed to environmentally relevant concentrations of BDE-209 and lead (Pb), or their binary mixtures, for 3 months. After chronic parental exposure, increased transfer of BDE-209 and Pb to the offspring eggs was activated in the coexposure groups, with BDE-197 being the predominant PBDE congener, indicating the dynamic metabolism of BDE-209 in parental zebrafish. In the presence of Pb, culturing the eggs in clean water until 5 days post-fertilization (dpf) further accelerated the debromination of BDE-209 towards BDE-197 in the offspring, caused by the preferential removal of bromine atoms at meta positions. BDE-209 and Pb combinations induced reproductive and thyroid endocrine disruption in adults, which resulted in an imbalanced deposition of hormones in the eggs. However, compared with single chemical exposure, the larval offspring at 5 dpf from the coexposure groups had reversed the adverse influences from maternal origin. In addition, the interaction between BDE-209 and Pb led to transgenerational developmental neurotoxicity in the larval offspring, where inhibited neuronal growth and neurotransmitter signaling, disorganized muscular assembly, and impaired visual function contributed to the observed neurobehavioral deficits. Overall, depending on specific biological events, the complex interaction between BDE-209 and Pb under chronic exposure resulted in significant alterations in their environmental fate and toxicological actions, thus complicating the accurate evaluation of ecological risks and constituting an unquantified threat to environmental safety.
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Affiliation(s)
- Lianguo Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Xianfeng Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Xiaohua Zhang
- Department of Science and Environmental Studies, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, New Territories, Hong Kong, China
| | - Paul K S Lam
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Yongyong Guo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - James C W Lam
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; Department of Science and Environmental Studies, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, New Territories, Hong Kong, China.
| | - Bingsheng Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
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23
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Xiao C, Liu Z, Li D, Refaey MM, Tang R, Li L, Zhang X. Acute nitrite exposure alters the metabolism of thyroid hormones in grass carp (Ctenopharyngodon idellus). CHEMOSPHERE 2017; 186:798-804. [PMID: 28826129 DOI: 10.1016/j.chemosphere.2017.07.119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 07/17/2017] [Accepted: 07/24/2017] [Indexed: 06/07/2023]
Abstract
Nitrite has the potential to disturb thyroid hormone homeostasis, but little is known about the underlying mechanisms. In the present study, juvenile grass carp (Ctenopharyngodon idellus) were exposed to various concentrations of nitrite (0, 0.5, 1, 4, and 16 mg/L, respectively). Serum concentrations of triiodothyronine (T3), thyroxine (T4), free triiodothyronine (FT3), free thyroxine (FT4), 3,3,5'-triiodothyronine (rT3), thyroid-stimulating hormone (TSH), and the activity of iodothyronine deiodinases were assayed at 0, 12, 24, 48, and 96 h after exposure. It was found that acute nitrite exposure significantly altered the TH levels and iodothyronine deiodinase activities. The rT3 levels were significantly increased in the treatment groups, whereas the concentrations of T3, FT3, FT4, and TSH decreased significantly. The concentration of T4 was elevated in the lower-dose exposure group, but was reduced in the higher-dose exposure group. Increases in type I iodothyronine deiodinase (ID1) and type III iodothyronine deiodinase (ID3) activities were observed in the exposure groups. The activity of type II iodothyronine deiodinase (ID2) decreased at 12 and 24 h after exposure. A decrease of colloid in the thyroid follicles was observed in the exposure group. The results indicate that acute nitrite exposure has the potential to disturb the homeostasis of thyroid hormone metabolism, leading to a hypothyroidism state in the juvenile grass carp.
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Affiliation(s)
- Chen Xiao
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, PR China; Department of Animal Production, Faculty of Agriculture, Mansoura University, Al-Mansoura 35516, Egypt
| | - Zidong Liu
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, PR China
| | - Dapeng Li
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, PR China.
| | - Mohamed M Refaey
- Department of Animal Production, Faculty of Agriculture, Mansoura University, Al-Mansoura 35516, Egypt
| | - Rong Tang
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, PR China
| | - Li Li
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, PR China
| | - Xi Zhang
- College of Fisheries, Huazhong Agricultural University, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, PR China
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24
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Liu Y, Wu D, Xu Q, Yu L, Liu C, Wang J. Acute exposure to tris (2-butoxyethyl) phosphate (TBOEP) affects growth and development of embryo-larval zebrafish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 191:17-24. [PMID: 28772162 DOI: 10.1016/j.aquatox.2017.07.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 07/22/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
Tris (2-butoxyethyl) phosphate (TBOEP), is used as a flame retardant worldwide. It is an additive in materials and can be easily discharged into the surrounding environment. There is evidence linking TBOEP exposure to abnormal development and growth in zebrafish embryos/larvae. Here, using zebrafish embryo as a model, we investigated toxicological effects on developing zebrafish (Danio rerio) caused by TBOEP at concentrations of 0, 20, 200, 1000, 2000μg/L starting from 2h post-fertilization (hpf). Our findings revealed that TBOEP exposure caused developmental toxicity, such as malformation, growth delay and decreased heart rate in zebrafish larvae. Correlation analysis indicated that inhibition of growth was possibly due to down-regulation of expression of genes related to the growth hormone/insulin-like growth factor (GH/IGF) axis. Furthermore, exposure to TBOEP significantly increased thyroxine (T4) and 3,5,3'-triiodothyronine (T3) in whole larvae. In addition, changed expression of genes involved in the hypothalamic-pituitary-thyroid (HPT) axis was observed, indicating that perturbation of HPT axis might be responsible for the developmental damage and growth delay induced by TBOEP. The present study provides a new set of evidence that exposure of embryo-larval zebrafish to TBOEP can cause perturbation of GH/IGF axis and HPT axis, which could result in developmental impairment and growth inhibition.
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Affiliation(s)
- Yiran Liu
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Ding Wu
- Department of Urology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - Qinglong Xu
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Liqin Yu
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Chunsheng Liu
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianghua Wang
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
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25
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Blackwell BR, Ankley GT, Corsi SR, DeCicco LA, Houck K, Judson R, Li S, Martin M, Murphy E, Schroeder AL, Smith ET, Swintek J, Villeneuve DL. An "EAR" on Environmental Surveillance and Monitoring: A Case Study on the Use of Exposure-Activity Ratios (EARs) to Prioritize Sites, Chemicals, and Bioactivities of Concern in Great Lakes Waters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:8713-8724. [PMID: 28671818 PMCID: PMC6132252 DOI: 10.1021/acs.est.7b01613] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Current environmental monitoring approaches focus primarily on chemical occurrence. However, based on concentration alone, it can be difficult to identify which compounds may be of toxicological concern and should be prioritized for further monitoring, in-depth testing, or management. This can be problematic because toxicological characterization is lacking for many emerging contaminants. New sources of high-throughput screening (HTS) data, such as the ToxCast database, which contains information for over 9000 compounds screened through up to 1100 bioassays, are now available. Integrated analysis of chemical occurrence data with HTS data offers new opportunities to prioritize chemicals, sites, or biological effects for further investigation based on concentrations detected in the environment linked to relative potencies in pathway-based bioassays. As a case study, chemical occurrence data from a 2012 study in the Great Lakes Basin along with the ToxCast effects database were used to calculate exposure-activity ratios (EARs) as a prioritization tool. Technical considerations of data processing and use of the ToxCast database are presented and discussed. EAR prioritization identified multiple sites, biological pathways, and chemicals that warrant further investigation. Prioritized bioactivities from the EAR analysis were linked to discrete adverse outcome pathways to identify potential adverse outcomes and biomarkers for use in subsequent monitoring efforts.
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Affiliation(s)
- Brett R. Blackwell
- US EPA, Mid-Continent Ecology Division, 6201 Congdon Blvd, Duluth, MN, USA 55804
- Corresponding author: 6201 Congdon Blvd, Duluth, MN 55804; ; T: (218) 529-5078; Fax: (218) 529-5003
| | - Gerald T. Ankley
- US EPA, Mid-Continent Ecology Division, 6201 Congdon Blvd, Duluth, MN, USA 55804
| | - Steve R. Corsi
- US Geological Survey, Wisconsin Water Science Center, 8505 Research Way, Middleton, WI, USA 53562
| | - Laura A. DeCicco
- US Geological Survey, Wisconsin Water Science Center, 8505 Research Way, Middleton, WI, USA 53562
| | - Keith Houck
- US EPA, National Center for Computational Toxicology, 109 T.W. Alexander Dr, Research Triangle Park, NC, USA 27711
| | - Richard Judson
- US EPA, National Center for Computational Toxicology, 109 T.W. Alexander Dr, Research Triangle Park, NC, USA 27711
| | - Shibin Li
- US EPA, Mid-Continent Ecology Division, 6201 Congdon Blvd, Duluth, MN, USA 55804
- National Research Council, US EPA, 6201 Congdon Blvd, Duluth, MN, USA 55804
| | - Matt Martin
- US EPA, National Center for Computational Toxicology, 109 T.W. Alexander Dr, Research Triangle Park, NC, USA 27711
| | - Elizabeth Murphy
- US EPA, Great Lakes National Program Office, 77 West Jackson Blvd, Chicago, IL, USA 60604
| | - Anthony L. Schroeder
- University of Minnesota Crookston, Math, Science, and Technology Department, 2900 University Ave, Crookston, MN, USA 56716
| | - Edwin T. Smith
- US EPA, Great Lakes National Program Office, 77 West Jackson Blvd, Chicago, IL, USA 60604
| | - Joe Swintek
- Badger Technical Services, 6201 Congdon Blvd, Duluth, MN, USA 55804
| | - Daniel L. Villeneuve
- US EPA, Mid-Continent Ecology Division, 6201 Congdon Blvd, Duluth, MN, USA 55804
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26
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Gundersen DT, Zeug SC, Bringolf RB, Merz J, Jackson Z, Webb MAH. Tissue Contaminant Burdens in San Francisco Estuary White Sturgeon (Acipenser transmontanus): Implications for Population Recovery. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 73:334-347. [PMID: 28528414 DOI: 10.1007/s00244-017-0378-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 02/15/2017] [Indexed: 06/07/2023]
Abstract
The San Francisco Estuary (SFE) is heavily influenced by anthropogenic activities, including historic and chronic contaminant inputs. These contaminants can adversely affect SFE fish populations, particularly white sturgeon, because they are a benthic dwelling, long-lived species. We measured a suite of metals and organic contaminants in liver and gonad tissues of 25 male and 32 female white sturgeon as well as several physiological indicators of sturgeon health. Most sturgeon (68% of males and 83% of females) were estimated to be between 13 and 17 years of age. Sturgeon tissues had elevated concentrations of several metals, including As, Ba, Cd, Cu, Cr, Pb, Hg, Ni, Se, and Zn. The most frequently detected organic contaminants in sturgeon livers and gonads were DDE, PCBs, PBDEs, and galaxolide. Selenium was detected at levels similar to those shown to cause impaired liver physiology and reproductive success in white sturgeon. Observed Hg levels were higher than those shown to result in lower condition factor and gonadosomatic indices in white sturgeon. Liver galaxolide levels correlated with decreased plasma estradiol levels in female sturgeon. The Cd, As, and Cu warrant further investigation, because they were detected at levels known to impair fish health. Our results suggest contaminants are negatively affecting SFE white sturgeon health and fitness. Future SFE white sturgeon contaminant research is suggested.
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Affiliation(s)
- Deke T Gundersen
- Environmental Science Program, Pacific University, Forest Grove, OR, USA
| | | | - Robert B Bringolf
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
| | - Joseph Merz
- Cramer Fish Sciences, Auburn, CA, USA
- Department of Ecology and Evolutionary Biology, University of California, 100 Shaffer Road, Santa Cruz, CA, 95060, USA
| | | | - Molly A H Webb
- U.S. Fish and Wildlife Service, Bozeman Fish Technology Center, Bozeman, MT, USA
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27
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Dabrowski J, Oberholster P, Steyl J, Osthoff G, Hugo A, Power DM, van Wyk JH. Thyroid function of steatitis-affected Mozambique tilapia Oreochromis mossambicus from a sub-tropical African reservoir. DISEASES OF AQUATIC ORGANISMS 2017; 125:101-113. [PMID: 28737156 DOI: 10.3354/dao03138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Thyroid function and nutritional indicators were measured in obese, steatitis-affected Mozambique tilapia Oreochromis mossambicus from Loskop Reservoir (LR), South Africa. Plasma thyroid hormones (especially T3) and thyroid follicle histomorphology revealed high levels of activity in every aspect of the thyroid cascade measured in fish from LR compared to a reference population of steatitis-free fish. Concurrent measurements of nutritional state including plasma lipids, liver lipid content and hepatocyte size showed that fish from LR had significant energy stores indicative of abundant nutritional intake. There were distinct sex and seasonal differences, with the highest plasma lipids and T3 levels observed in steatitis-affected females during spring and summer. Positive correlations were observed between plasma lipids (especially cholesterol) and T3 concentrations in fish from both populations, indicating a link between lipid metabolism and thyroid function. There was no direct evidence of thyroid disruption, but this cannot be ruled out until further research determines the factors that underlie the homeostatic shift leading to elevated plasma and liver lipids and T3 levels in steatitis-affected tilapia.
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Affiliation(s)
- J Dabrowski
- Sustainability Research Unit, Nelson Mandela Metropolitan University, Private Bag x6531, George 6530, South Africa
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28
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Shirmohammadi M, Salamat N, Ronagh MT, Movahedinia A, Hamidian G. Assessment of immune status of yellowfin seabream (Acanthopagrus latus) during short term exposure to phenanthrene. Comp Biochem Physiol C Toxicol Pharmacol 2017; 195:78-90. [PMID: 28257924 DOI: 10.1016/j.cbpc.2017.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 02/23/2017] [Accepted: 02/23/2017] [Indexed: 10/20/2022]
Abstract
The aim of the present investigation was to assess the immune status in yellowfin seabream (Acanthopagrus latus) exposed to different concentrations of phenanthrene (Phe) for 14days. In addition, the Phe accumulation in the fish muscle was measured during the experiment. Fish were injected with different concentrations (0, 2, 20 and 40mg/kg) of Phe and samples were taken from tissue and blood of fish 1, 4, 7 and 14days after injection. Exposure of fish to Phe caused a significant decrease in white blood cells, C3 and C4 levels, lysosomal membrane stability, lysozyme activity after 4days and antibacterial activity after 7days of the experiment. In contrast, cortisol level significantly increased after 4days. The concentration of Phe in fish muscle increased rapidly after 4days. The main tissue changes observed in the head kidney including increase in melanomacrophage centers (MMCs), empty spaces between cells and hemorrhage. The degree of tissue changes ranged from normal to moderate in Phe-treated fish. The size and number of MMCs in treated fish were significantly higher than control. In conclusion, Phe toxicity in yellowfin seabream can induce increased cortisol level, tissue changes and immune suppression.
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Affiliation(s)
- Mehrnaz Shirmohammadi
- Department of Marine Biology, Faculty of Marine Science, Khorramshahr University of Marine Science and Technology, Khorramshahr City, Khuzestan Province, Iran.
| | - Negin Salamat
- Department of Marine Biology, Faculty of Marine Science, Khorramshahr University of Marine Science and Technology, Khorramshahr City, Khuzestan Province, Iran.
| | - Mohammad Taghi Ronagh
- Department of Marine Biology, Faculty of Marine Science, Khorramshahr University of Marine Science and Technology, Khorramshahr City, Khuzestan Province, Iran.
| | - Abdolali Movahedinia
- Department of Marine Biology, Faculty of Marine Science, Khorramshahr University of Marine Science and Technology, Khorramshahr City, Khuzestan Province, Iran.
| | - Gholamreza Hamidian
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran.
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29
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Nugegoda D, Kibria G. Effects of environmental chemicals on fish thyroid function: Implications for fisheries and aquaculture in Australia. Gen Comp Endocrinol 2017; 244:40-53. [PMID: 26921447 DOI: 10.1016/j.ygcen.2016.02.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 02/22/2016] [Accepted: 02/24/2016] [Indexed: 12/14/2022]
Abstract
Numerous environmental stressors exert acute or chronic effects on the fish thyroid cascade. Such effects could be mediated via thyroidal alterations, imbalance of plasma T4 and T3 levels or damage to the structure of the thyroidal tissues (thyroid hypertrophy, hyperplasia). The thyroidal system is intricately linked to other endocrine systems in vertebrates including the control of reproduction. Disruption of fish thyroid function by environmental stressors has the potential to result in deleterious effects including the inhibition of sperm production, reduction in egg production, gonad development, ovarian growth, swimming activity, fertilisation and increase in larval mortality. Thyroid hormones play a major role in the development and growth of fish, particularly during their early life stages, thus, thyroid disruption by environmental stressors could inhibit the growth of fish larvae and juveniles in wild fish and cultured species, limit fish seed production and result in a decline in wild fisheries. This review highlights the effects of several environmental toxicants including PBDE, PCBs, PCDD and PCDF, PAH/oil, phthalates, metals, pesticides, mixed pollutants/chemicals, cyanide; and other stressors including acid (low pH) and ammonia, on fish thyroid function. Environmental sources of chemical stressors and appropriate water quality guidelines to protect the freshwater and marine species for the relevant pollutants are also discussed including (when available) the Australian guidelines (2000) and Canadian water quality guidelines (where Australian guidelines are not available). To date there has been no published research on the effects of anthropogenic environmental pollutants on the thyroid system of any native Australian fish species. However, the detection of high risk chemicals (notably PBDEs, PCBs, PAHs, metals and pesticides) in Australian waterways and Australian fish and shellfish implies that thyroid disruption of Australian wild fish and aquacultured species could occur. It is therefore imperative that the effects of such pollutants on the thyroid system of Australian native fish be investigated.
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Affiliation(s)
- Dayanthi Nugegoda
- School of Applied Sciences, RMIT University, Bundoora West Campus, Plenty Road, Melbourne, Australia.
| | - Golam Kibria
- School of Applied Sciences, RMIT University, Bundoora West Campus, Plenty Road, Melbourne, Australia.
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30
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Jürgens MD, Crosse J, Hamilton PB, Johnson AC, Jones KC. The long shadow of our chemical past - High DDT concentrations in fish near a former agrochemicals factory in England. CHEMOSPHERE 2016; 162:333-344. [PMID: 27518925 DOI: 10.1016/j.chemosphere.2016.07.078] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 07/19/2016] [Accepted: 07/24/2016] [Indexed: 06/06/2023]
Abstract
A total of 81 roach (Rutilus rutilus) collected from 13 southern English river sites between 2007 and 2012, were analysed for organochlorine pesticides, PCBs, PBDEs and some metals. Unexpectedly high concentrations of the banned insecticide DDT and its degradation products DDE and DDD (∑DDTs) were found in the 10 fish from the river Lee (or Lea) which averaged 88 ± 70 (standard deviation) μg/kg ww, almost 20 times higher than the average for the remaining sites (4.8 ± 3.1 μg/kg). All fish from that site exceeded the Canadian Tissue Residue Guideline (environmental quality standard) of 14 μg/kg ∑DDTs. Concentrations of the insecticides chlordane and lindane as well as copper, which is often used as a fungicide, were also elevated in fish from the Lee, though not as much as those of DDTs. A likely explanation for these observations was found in a nearby former pesticide factory, which had stopped production about three decades earlier. An extensive review of recent literature data on DDT in wild European fish found that, while levels are now generally low, there were several other hotspots with ∑DDTs levels that may still be of concern.
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Affiliation(s)
| | - John Crosse
- Lancaster University, Lancaster Environment Centre, LA1 4YQ, UK.
| | | | | | - Kevin C Jones
- Lancaster University, Lancaster Environment Centre, LA1 4YQ, UK.
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31
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Carter CJ, Blizard RA. Autism genes are selectively targeted by environmental pollutants including pesticides, heavy metals, bisphenol A, phthalates and many others in food, cosmetics or household products. Neurochem Int 2016; 101:S0197-0186(16)30197-8. [PMID: 27984170 DOI: 10.1016/j.neuint.2016.10.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/18/2016] [Accepted: 10/26/2016] [Indexed: 11/21/2022]
Abstract
The increasing incidence of autism suggests a major environmental influence. Epidemiology has implicated many candidates and genetics many susceptibility genes. Gene/environment interactions in autism were analysed using 206 autism susceptibility genes (ASG's) from the Autworks database to interrogate ∼1 million chemical/gene interactions in the comparative toxicogenomics database. Any bias towards ASG's was statistically determined for each chemical. Many suspect compounds identified in epidemiology, including tetrachlorodibenzodioxin, pesticides, particulate matter, benzo(a)pyrene, heavy metals, valproate, acetaminophen, SSRI's, cocaine, bisphenol A, phthalates, polyhalogenated biphenyls, flame retardants, diesel constituents, terbutaline and oxytocin, inter alia showed a significant degree of bias towards ASG's, as did relevant endogenous agents (retinoids, sex steroids, thyroxine, melatonin, folate, dopamine, serotonin). Numerous other suspected endocrine disruptors (over 100) selectively targeted ASG's including paraquat, atrazine and other pesticides not yet studied in autism and many compounds used in food, cosmetics or household products, including tretinoin, soy phytoestrogens, aspartame, titanium dioxide and sodium fluoride. Autism polymorphisms influence the sensitivity to some of these chemicals and these same genes play an important role in barrier function and control of respiratory cilia sweeping particulate matter from the airways. Pesticides, heavy metals and pollutants also disrupt barrier and/or ciliary function, which is regulated by sex steroids and by bitter/sweet taste receptors. Further epidemiological studies and neurodevelopmental and behavioural research is warranted to determine the relevance of large number of suspect candidates whose addition to the environment, household, food and cosmetics might be fuelling the autism epidemic in a gene-dependent manner.
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Affiliation(s)
- C J Carter
- PolygenicPathways, Flat 2, 40 Baldslow Road, Hastings, East Sussex, TN34 2EY, UK.
| | - R A Blizard
- Molecular Psychiatry Laboratory, Mental Health Sciences Unit, University College, London, UK
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Chaves-Ulloa R, Taylor BW, Broadley HJ, Cottingham KL, Baer NA, Weathers KC, Ewing HA, Chen CY. Dissolved organic carbon modulates mercury concentrations in insect subsidies from streams to terrestrial consumers. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2016; 26:1771-1784. [PMID: 27755696 PMCID: PMC5070544 DOI: 10.1890/15-0025.1] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 02/11/2016] [Accepted: 02/15/2016] [Indexed: 05/28/2023]
Abstract
Mercury (Hg) concentrations in aquatic environments have increased globally, exposing consumers of aquatic organisms to high Hg levels. For both aquatic and terrestrial consumers, exposure to Hg depends on their food sources as well as environmental factors influencing Hg bioavailability. The majority of the research on the transfer of methylmercury (MeHg), a toxic and bioaccumulating form of Hg, between aquatic and terrestrial food webs has focused on terrestrial piscivores. However, a gap exists in our understanding of the factors regulating MeHg bioaccumulation by non-piscivorous terrestrial predators, specifically consumers of adult aquatic insects. Because dissolved organic carbon (DOC) binds tightly to MeHg, affecting its transport and availability in aquatic food webs, we hypothesized that DOC affects MeHg transfer from stream food webs to terrestrial predators feeding on emerging adult insects. We tested this hypothesis by collecting data over 2 years from 10 low-order streams spanning a broad DOC gradient in the Lake Sunapee watershed in New Hampshire, USA. We found that streamwater MeHg concentration increased linearly with DOC concentration. However, streams with the highest DOC concentrations had emerging stream prey and spiders with lower MeHg concentrations than streams with intermediate DOC concentrations; a pattern that is similar to fish and larval aquatic insects. Furthermore, high MeHg concentrations found in spiders show that MeHg transfer in adult aquatic insects is an overlooked but potentially significant pathway of MeHg bioaccumulation in terrestrial food webs. Our results suggest that although MeHg in water increases with DOC, MeHg concentrations in stream and terrestrial consumers did not consistently increase with increases in streamwater MeHg concentrations. In fact, there was a change from a positive to a negative relationship between aqueous exposure and bioaccumulation at streamwater MeHg concentrations associated with DOC above ~5 mg/L. Thus, our study highlights the importance of stream DOC for MeHg dynamics beyond stream boundaries, and shows that factors modulating MeHg bioavailability in aquatic systems can affect the transfer of MeHg to terrestrial predators via aquatic subsidies.
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Affiliation(s)
- Ramsa Chaves-Ulloa
- Department of Biological Sciences, Dartmouth College, 78 College Street, Hanover, New Hampshire, 03755, USA.
| | - Brad W Taylor
- Department of Biological Sciences, Dartmouth College, 78 College Street, Hanover, New Hampshire, 03755, USA
| | - Hannah J Broadley
- Department of Biological Sciences, Dartmouth College, 78 College Street, Hanover, New Hampshire, 03755, USA
- Environmental Studies Program, Bates College, 7 Andrews Road, Lewiston, Maine, 04240, USA
| | - Kathryn L Cottingham
- Department of Biological Sciences, Dartmouth College, 78 College Street, Hanover, New Hampshire, 03755, USA
| | - Nicholas A Baer
- Department of Natural Sciences, Colby-Sawyer College, 541 Main Street, New London, New Hampshire, 03257, USA
| | - Kathleen C Weathers
- Cary Institute of Ecosystem Studies, PO Box AB, Millbrook, New York, 12545, USA
| | - Holly A Ewing
- Environmental Studies Program, Bates College, 7 Andrews Road, Lewiston, Maine, 04240, USA
| | - Celia Y Chen
- Department of Biological Sciences, Dartmouth College, 78 College Street, Hanover, New Hampshire, 03755, USA
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Fowles JR, Banton MI, Boogaard PJ, Ketelslegers HB, Rohde AM. Assessment of petroleum streams for thyroid toxicity. Toxicol Lett 2016; 254:52-62. [DOI: 10.1016/j.toxlet.2016.05.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 03/22/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
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Couderc M, Marchand J, Zalouk-Vergnoux A, Kamari A, Moreau B, Blanchet-Letrouvé I, Le Bizec B, Mouneyrac C, Poirier L. Thyroid endocrine status of wild European eels (Anguilla anguilla) in the Loire (France). Relationships with organic contaminant body burdens. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 550:391-405. [PMID: 26845177 DOI: 10.1016/j.scitotenv.2015.12.136] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 12/26/2015] [Accepted: 12/27/2015] [Indexed: 06/05/2023]
Abstract
In teleost fish, thyroid function is involved in various critical physiological processes. Given the complexity of the hypothalamo-pituitary-thyroid (HPT) axis, a large number of genes and proteins can be the potential target of endocrine-disrupting compounds (EDCs). The aim of this study was to evaluate, in yellow and silver European eels (Anguilla anguilla), potential effects of EDCs on thyroid status by analyzing the associations between EDC body burdens and thyroid hormones (THs). In yellow individuals, greater free T3/T4 ratios (FT3/FT4) and lower plasma FT4 levels were associated with greater concentrations of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs), as highlighted by significant correlations with many congeners. Few positive relationships with alkylphenols were noticed. In contrast, silver eels usually exhibited less significant correlations between THs and contaminant loads. Expression of a series of genes involved in the HPT axis was also investigated in the silver individuals. Concerning mRNA expression in silver females, some main correlations were noticed: thyroid-stimulating hormone (TSHβ) gene expression was significantly correlated to numerous PCBs, and hepatic mRNA levels of deiodinase 2 (Deio 2) were negatively correlated to 2-hydroxyfluorene (2-OHF) and 2-naphtol (2-OHNa). Thyroid receptor (TRα and TRβ) mRNA levels exhibited weak negative correlations with some PBDEs in silver females and males. Hepatic vitellogenin (Vtg) mRNA levels were detected in all silver males but at lower levels than in silver females. In males, Vtg mRNA levels were positively associated to FT4/TT4. In silver females, strong positive correlations were found between congeners of PCBs, PBDEs and PFAS suggesting potential estrogenic effects. Overall, the observed results indicate that several organic contaminants, mainly dl-, ndl-PCBs and PBDEs, could be associated with changes in thyroid homeostasis in these fish, via direct or indirect interactions with peripheral deiodination, metabolism of T4 and mechanisms involved in TSHβ, Deio 2 and Vtg gene transcription.
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Affiliation(s)
- M Couderc
- Université de Nantes, MMS, EA 2160, Nantes F-44322, France
| | - J Marchand
- Université du Maine, MMS, EA 2160, Le Mans F-72085, France
| | | | - A Kamari
- Université de Nantes, MMS, EA 2160, Nantes F-44322, France
| | - B Moreau
- Université du Maine, MMS, EA 2160, Le Mans F-72085, France
| | | | - B Le Bizec
- Oniris, Laboratoire d'Étude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes F-44307, France
| | - C Mouneyrac
- Université Catholique de l'Ouest, MMS, EA 2160, Angers F-49000, France
| | - L Poirier
- Université de Nantes, MMS, EA 2160, Nantes F-44322, France.
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Schnitzler JG, Klaren PHM, Mariavelle E, Das K. The thyroid gland and thyroid hormones in sheepshead minnow (Cyprinodon variegatus) during early development and metamorphosis. FISH PHYSIOLOGY AND BIOCHEMISTRY 2016; 42:607-616. [PMID: 26573854 DOI: 10.1007/s10695-015-0163-5] [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: 05/24/2015] [Accepted: 11/08/2015] [Indexed: 06/05/2023]
Abstract
The sheepshead minnow is widely used in ecotoxicological studies that only recently have begun to focus on disruption of the thyroid axis by xenobiotics and endocrine disrupting compounds. However, reference levels of the thyroid prohormone thyroxine (T4) and biologically active hormone 3,5,3'-triiodothyronine (T3) and their developmental patterns are unknown. This study set out to describe the ontogeny and morphology of the thyroid gland in sheepshead minnow, and to correlate these with whole-body concentrations of thyroid hormones during early development and metamorphosis. Eggs were collected by natural spawning in our laboratory. T4 and T3 were extracted from embryos, larvae and juveniles and an enzyme-linked immunoassay was used to measure whole-body hormone levels. Length and body mass, hatching success, gross morphology, thyroid hormone levels and histology were measured. The onset of metamorphosis at 12-day post-hatching coincided with surges in whole-body T4 and T3 concentrations. Thyroid follicles were first observed in pre-metamorphic larvae at hatching and were detected exclusively in the subpharyngeal region, surrounding the ventral aorta. Follicle size and thyrocyte epithelial cell heights varied during development, indicating fluctuations in thyroid hormone synthesis activity. The increase in the whole-body T3/T4 ratio was indicative of an increase in outer ring deiodination activity. This study establishes a baseline for thyroid hormones in sheepshead minnows, which will be useful for the understanding of thyroid hormone functions and in future studies of thyroid toxicants in this species.
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Affiliation(s)
- Joseph G Schnitzler
- Laboratory of Oceanology, MARE Centre, B6c, Liege University, Liege, Belgium.
- Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Foundation, Büsum, Schleswig-Holstein, Germany.
| | - Peter H M Klaren
- Department of Organismal Animal Physiology, Institute for Water and Wetland Research, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Emeline Mariavelle
- Laboratory of Oceanology, MARE Centre, B6c, Liege University, Liege, Belgium
| | - Krishna Das
- Laboratory of Oceanology, MARE Centre, B6c, Liege University, Liege, Belgium
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Anyanwu IN, Semple KT. Assessment of the effects of phenanthrene and its nitrogen heterocyclic analogues on microbial activity in soil. SPRINGERPLUS 2016; 5:279. [PMID: 27006887 PMCID: PMC4779084 DOI: 10.1186/s40064-016-1918-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 02/18/2016] [Indexed: 11/10/2022]
Abstract
Microbes are susceptible to contaminant effects, and high concentrations of chemical in soil can impact on microbial growth, density, viability and development. As a result of relative sensitivity of microbes to contaminants, toxicity data are important in determining critical loads or safe levels for contaminants in soil. Therefore the aim of this study was to assess the impact of phenanthrene and the 3-ring nitrogen-containing polycyclic aromatic hydrocarbons (N-PAHs) on soil microbial respiration. Soil samples were amended with phenanthrene and its 3-ring nitrogen-containing analogues and respiration rates (using substrate induced respiration), CO2 production inhibition and/or stress and total culturable microbial numbers were measured over a 90 days soil-contact time. The study showed that inhibition of phenanthrene amended soils occurred in the first 60 days, while the nitrogen-containing analogues impacted on respiration with increased concentration and contact time. Time dependent inhibitions were more than 25 % portraying N-PAHs toxic and inhibitory effects on microbial synthesis of the added carbon substrate. Further, statistical analysis of data revealed statistically significant differences in the respiration rates over time (p < 0.05). This suggests that soil microorganisms may be more sensitive to N-PAHs in soil than the homocyclic PAH analogues. This current study provides baseline toxicity data to the understanding of the environmental impact of N-PAHs, and assists science-based decision makers for improved management of N-PAH contaminated sites.
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Affiliation(s)
- Ihuoma N Anyanwu
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ UK ; Department of Biological Sciences, Federal University Ndufu-Alike Ikwo, P.M.B 1010, Ebonyi State, Nigeria
| | - Kirk T Semple
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ UK
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Baumann L, Ros A, Rehberger K, Neuhauss SCF, Segner H. Thyroid disruption in zebrafish (Danio rerio) larvae: Different molecular response patterns lead to impaired eye development and visual functions. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 172:44-55. [PMID: 26765085 DOI: 10.1016/j.aquatox.2015.12.015] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 12/12/2015] [Accepted: 12/15/2015] [Indexed: 05/09/2023]
Abstract
The vertebrate thyroid system is important for multiple developmental processes, including eye development. Thus, its environmentally induced disruption may impact important fitness-related parameters like visual capacities and behaviour. The present study investigated the relation between molecular effects of thyroid disruption and morphological and physiological changes of eye development in zebrafish (Danio rerio). Two test compounds representing different molecular modes of thyroid disruption were used: propylthiouracil (PTU), which is an enzyme-inhibitor of thyroid hormone synthesis, and tetrabromobisphenol A (TBBPA), which interacts with the thyroid hormone receptors. Both chemicals significantly altered transcript levels of thyroid system-related genes (TRα, TRβ, TPO, TSH, DIO1, DIO2 and DIO3) in a compound-specific way. Despite these different molecular response patterns, both treatments resulted in similar pathological alterations of the eyes such as reduced size, RPE cell diameter and pigmentation, which were concentration-dependent. The morphological changes translated into impaired visual performance of the larvae: the optokinetic response was significantly and concentration-dependently decreased in both treatments, together with a significant increase of light preference of PTU-treated larvae. In addition, swimming activity was impacted. This study provides first evidence that different modes of molecular action of the thyroid disruptors can be associated with uniform apical responses. Furthermore, this study is the first to show that pathological eye development, as it can be induced by exposure to thyroid disruptors, indeed translates into impaired visual capacities of zebrafish early life stages.
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Affiliation(s)
- Lisa Baumann
- University of Berne, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 122, CH-3012 Berne, Switzerland.
| | - Albert Ros
- University of Berne, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 122, CH-3012 Berne, Switzerland.
| | - Kristina Rehberger
- University of Berne, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 122, CH-3012 Berne, Switzerland.
| | - Stephan C F Neuhauss
- University of Zurich, Institute of Molecular Life Sciences, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
| | - Helmut Segner
- University of Berne, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 122, CH-3012 Berne, Switzerland.
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38
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Renick VC, Weinersmith K, Vidal-Dorsch DE, Anderson TW. Effects of a pesticide and a parasite on neurological, endocrine, and behavioral responses of an estuarine fish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 170:335-343. [PMID: 26454718 DOI: 10.1016/j.aquatox.2015.09.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 09/11/2015] [Accepted: 09/21/2015] [Indexed: 06/05/2023]
Abstract
In coastal waters, pesticides and parasites are widespread stressors that may separately and interactively affect the physiology, behavior, and survival of resident organisms. We investigated the effects of the organophosphate pesticide chlorpyrifos and the trematode parasite Euhaplorchis californiensis on three important traits of California killifish (Fundulus parvipinnis): neurotransmitter activity, release of the stress hormone cortisol, and behavior. Killifish were collected from a population without E. californiensis, and then half of the fish were experimentally infected. Following a 30 day period for parasite maturation, infected and uninfected groups were exposed to four concentrations of chlorpyrifos (solvent control, 1-3ppb) prior to behavior trials to quantify activity, feeding behavior, and anti-predator responses. Water-borne cortisol release rates were measured non-invasively from each fish prior to infection, one-month post-infection, and following pesticide exposure. Killifish exposed to 3ppb chlorpyrifos exhibited a 74.6±6.8% and 60.5±8.3% reduction in brain and muscle acetylcholinesterase (AChE) activity relative to controls. The rate of cortisol release was suppressed by each chlorpyrifos level relative to controls. Killifish exposed to the medium (2ppb) and high (3ppb) pesticide concentrations exhibited reduced activity and a decrease in mean swimming speed following a simulated predator attack. Muscle AChE was positively related to swimming activity while brain AChE was positively related to foraging behavior. No effects of the parasite were observed, possibly because of low metacercariae densities achieved through controlled infections. We found that sublethal pesticide exposure has the potential to modify several organismal endpoints with consequences for reduced fitness, including neurological, endocrine, and behavioral responses in an ecologically abundant fish.
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Affiliation(s)
- Violet Compton Renick
- San Diego State University, Department of Biology and Coastal and Marine Institute, 5500 Campanile Drive, San Diego, CA 92182, United States; University of California Davis, Department of Environmental Science and Policy, One Shields Avenue, Davis, CA 95616, United States.
| | - Kelly Weinersmith
- University of California Davis, Department of Environmental Science and Policy, One Shields Avenue, Davis, CA 95616, United States; Rice University, BioSciences, 6100 Main Street, Houston, TX 77005, United States
| | - Doris E Vidal-Dorsch
- Southern California Coastal Water Research Project, 3535 Harbor Blvd. Suite 110, Costa Mesa, CA 92626-1437, United States
| | - Todd W Anderson
- San Diego State University, Department of Biology and Coastal and Marine Institute, 5500 Campanile Drive, San Diego, CA 92182, United States
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Harmon SM. The Toxicity of Persistent Organic Pollutants to Aquatic Organisms. PERSISTENT ORGANIC POLLUTANTS (POPS): ANALYTICAL TECHNIQUES, ENVIRONMENTAL FATE AND BIOLOGICAL EFFECTS 2015. [DOI: 10.1016/b978-0-444-63299-9.00018-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Jürgens MD, Chaemfa C, Hughes D, Johnson AC, Jones KC. PCB and organochlorine pesticide burden in eels in the lower Thames River (UK). CHEMOSPHERE 2015; 118:103-111. [PMID: 25078785 DOI: 10.1016/j.chemosphere.2014.06.088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/24/2014] [Accepted: 06/28/2014] [Indexed: 06/03/2023]
Abstract
Thirty-five European eels (Anguilla anguilla), caught in 2007 in the river Thames upstream and downstream of both London and the tidal limit, were analysed for PCBs and organochlorine pesticides. Most chemicals were detectable in every fish, although they have been banned or severely restricted for many years. In general, the tidal eels were more contaminated than upstream ones, which was related to their higher lipid contents. The ICES7 indicator PCB concentrations ranged overall from 4.2 to 124μgkg(-1) fresh weight with averages of 33 and 56μgkg(-1) for the upstream and tidal eels; 3.5-104μgkg(-1), average 26 and 48μgkg(-1) of that were ICES6 PCBs. Total DDT was on average 16μgkg(-1) (1.7-38μgkg(-1)) upstream and 18μgkg(-1) (8.6-35μgkg(-1)) downstream with about half of that provided by pp'DDE. Lindane (γ-HCH) was found at up to 2.8μgkg(-1) (averages 0.58 and 1.1μgkg(-1) upstream and downstream) and hexachlorobenzene (HCB) was on average 1.9 and 2.5μgkg(-1) in the two groups with a maximum of 6.4μgkg(-1) in each. Therefore all individuals passed the European Environmental Quality Standard (EQS) of 10μgkg(-1) for HCB. PCB contamination was fairly typical for recent UK eel data, whilst DDE and lindane concentrations were lower than most previous UK eel studies, perhaps reflecting a downward trend. Although not as highly contaminated as some eels from previous UK and European studies, the presence of so many of these chemicals, with their known health effects may represent a stress for the fish or higher predators, such as birds.
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Affiliation(s)
| | - Chakra Chaemfa
- Lancaster Environment Centre, Lancaster University, LA1 4YQ, United Kingdom; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, Wushan, Tianhe District, Guangzhou, GD 510640, China
| | - David Hughes
- Lancaster Environment Centre, Lancaster University, LA1 4YQ, United Kingdom
| | | | - Kevin C Jones
- Lancaster Environment Centre, Lancaster University, LA1 4YQ, United Kingdom
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41
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Jarque S, Piña B. Deiodinases and thyroid metabolism disruption in teleost fish. ENVIRONMENTAL RESEARCH 2014; 135:361-375. [PMID: 25462686 DOI: 10.1016/j.envres.2014.09.022] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 09/09/2014] [Accepted: 09/26/2014] [Indexed: 06/04/2023]
Abstract
Many xenobiotic compounds with endocrine disrupting activity have been described since the late eighties. These compounds are able to interact with natural hormone systems and potentially induce deleterious effects in wildlife, notably piscine species. However, while the characterization of endocrine disruptors with "dioxin-like", estrogenic or androgenic activities is relatively well established, little is known about environmentally relevant pollutants that may act at thyroid system level. Iodothyronine deiodinases, the key enzymes in the activation and inactivation of thyroid hormones, have been suggested as suitable biomarkers for thyroid metabolism disruption. The present article reviews the biotic and abiotic factors that are able to modulate deiodinases in teleosts, a representative model organism for vertebrates. Data show that deiodinases are highly sensitive to several physiological and physical variables, so they should be taken into account to establish natural basal deiodination patterns to further understand responses under chemical exposure. Among xenobiotic compounds, brominated flame retardants are postulated as chemicals of major concern because of their similar structure shared with thyroid hormones. More ambiguous results are shown for the rest of compounds, i.e. polychlorinated biphenyls, perfluorinated chemicals, pesticides, metals and synthetic drugs, in part due to the limited information available. The different mechanisms of action still remain unknown for most of those compounds, although several hypothesis based on observed effects are discussed. Future tasks are also suggested with the aim of moving forward in the full characterization of chemical compounds with thyroid disrupting activity.
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Affiliation(s)
- Sergio Jarque
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5/753, CZ62500 Brno, Czech Republic.
| | - Benjamin Piña
- Institute of Environmental Assessment and Water Research, IDAEA-CSIC, Jordi Girona, 18, 08034 Barcelona, Spain.
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42
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Saravanan M, Hur JH, Arul N, Ramesh M. Toxicological effects of clofibric acid and diclofenac on plasma thyroid hormones of an Indian major carp, Cirrhinus mrigala during short and long-term exposures. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 38:948-958. [PMID: 25461555 DOI: 10.1016/j.etap.2014.10.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/16/2014] [Accepted: 10/18/2014] [Indexed: 06/04/2023]
Abstract
In the present investigation, the toxicity of most commonly detected pharmaceuticals in the aquatic environment namely clofibric acid (CA) and diclofenac (DCF) was investigated in an Indian major carp Cirrhinus mrigala. Fingerlings of C. mrigala were exposed to different concentrations (1, 10 and 100μgL(-1)) of CA and DCF for a period of 96h (short term) and 35 days (long term). The toxic effects of CA and DCF on thyroid hormones (THs) such as thyroid stimulating hormone (TSH), thyroxine (T4) and triiodothyronine (T3) levels were evaluated. During the short and long-term exposure period TSH level was found to be decreased at all concentrations of CA (except at the end of 14(th) day in 1 and 10μgL(-l) and 21(st) day in 1μgL(-l)) whereas in DCF exposed fish TSH level was found to be increased when compared to control groups. T4 level was found to be decreased at 1 and 100μgL(-l) of CA exposure at the end of 96h. However, T4 level was decreased at all concentrations of CA and DCF during long-term (35 days) exposure period. Fish exposed to all concentrations of CA and DCF had lower level of T3 in both the treatments. These results suggest that both CA and DCF drugs induced significant changes (P<0.01 and P<0.05) on thyroid hormonal levels of C. mrigala. The alterations of these hormonal levels can be used as potential biomarkers in monitoring of pharmaceutical drugs in aquatic organisms.
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Affiliation(s)
- Manoharan Saravanan
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India; Bio-Regulatory Chemistry Lab, Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Jang-Hyun Hur
- Bio-Regulatory Chemistry Lab, Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Narayanasamy Arul
- Department of Life Science, Research Center for Cell Homeostasis, Ewha Womens University, Seoul 120-750, Republic of Korea
| | - Mathan Ramesh
- Unit of Toxicology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India.
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Jenkins JA, Olivier HM, Draugelis-Dale RO, Eilts BE, Torres L, Patiño R, Nilsen E, Goodbred SL. Assessing reproductive and endocrine parameters in male largescale suckers (Catostomus macrocheilus) along a contaminant gradient in the lower Columbia River, USA. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 484:365-378. [PMID: 24182618 DOI: 10.1016/j.scitotenv.2013.09.097] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Revised: 09/27/2013] [Accepted: 09/28/2013] [Indexed: 06/02/2023]
Abstract
Persistent organochlorine pollutants such as polychlorinated biphenyls (PCBs), dichlorodiphenyldichloroethylene (p,p'-DDE), and polybrominated diphenyl ethers (PBDEs) are stable, bioaccumulative, and widely found in the environment, wildlife, and the human population. To explore the hypothesis that reproduction in male fish is associated with environmental exposures in the lower Columbia River (LCR), reproductive and endocrine parameters were studied in male resident, non-anadromous largescale sucker (Catostomus macrocheilus) (LSS) in the same habitats as anadromous salmonids having conservation status. Testes, thyroid tissue and plasma collected in 2010 from Longview (LV), Columbia City (CC), and Skamania (SK; reference) were studied. Sperm morphologies and thyrocyte heights were measured by light microscopy, sperm motilities by computer-assisted sperm motion analysis, sperm adenosine triphosphate (ATP) with luciferase, and plasma vitellogenin (VTG), thyroxine (T4), and triiodothyronine (T3) by immunoassay. Sperm apoptosis, viability, mitochondrial membrane potential, nuclear DNA fragmentation, and reproductive stage were measured by flow cytometry. Sperm quality parameters (except counts) and VTG were significantly different among sites, with correlations between VTG and 7 sperm parameters. Thyrocyte heights, T4, T3, gonadosomatic index and Fulton's condition factor differed among sites, but not significantly. Sperm quality was significantly lower and VTG higher where liver contaminants and water estrogen equivalents were highest (LV site). Total PCBs (specifically PCB-138, -146, -151, -170, -174, -177, -180, -183, -187, -194, and -206) and total PBDEs (specifically BDE-47, -100, -153, and -154) were negatively correlated with sperm motility. PCB-206 and BDE-154 were positively correlated with DNA fragmentation, and pentachloroanisole and VTG were positively correlated with sperm apoptosis and negatively correlated with ATP. BDE-99 was positively correlated with sperm counts and motility; T4 was negatively correlated with counts and positively correlated with motility, thus indicating possible androgenic mechanisms and thyroid endocrine disruption. Male LSS proved to be an informative model for studying reproductive and endocrine biomarkers in the LCR.
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Affiliation(s)
- J A Jenkins
- U.S. Geological Survey, National Wetlands Research Center, 700 Cajundome Blvd., Lafayette, LA 70506, USA.
| | - H M Olivier
- U.S. Geological Survey, National Wetlands Research Center, 700 Cajundome Blvd., Lafayette, LA 70506, USA
| | - R O Draugelis-Dale
- U.S. Geological Survey, National Wetlands Research Center, 700 Cajundome Blvd., Lafayette, LA 70506, USA
| | - B E Eilts
- Department of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - L Torres
- Department of Biological Sciences and Texas Cooperative Fish and Wildlife Research Unit, Texas Tech University, Lubbock, TX 79409-3131, USA
| | - R Patiño
- U.S. Geological Survey, Texas Cooperative Fish and Wildlife Unit, Texas Tech University, Lubbock, TX 79409-2120, USA; Department of Biological Sciences and Department of Natural Resources Management, Texas Tech University, Lubbock, TX 79409-2120, USA
| | - E Nilsen
- U.S. Geological Survey, Oregon Water Science Center, 2130 S.W. 5th Avenue, Portland, OR 97201, USA
| | - S L Goodbred
- U.S. Geological Survey (Emeritus), High Point, NC 27262, USA
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Nilsen E, Zaugg S, Alvarez D, Morace J, Waite I, Counihan T, Hardiman J, Torres L, Patiño R, Mesa M, Grove R. Contaminants of legacy and emerging concern in largescale suckers (Catostomus macrocheilus) and the foodweb in the lower Columbia River, Oregon and Washington, USA. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 484:344-352. [PMID: 24462179 DOI: 10.1016/j.scitotenv.2013.04.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 04/03/2013] [Accepted: 04/04/2013] [Indexed: 06/03/2023]
Abstract
We investigated occurrence, transport pathways, and effects of polybrominated diphenyl ether (PBDE) flame retardants and other endocrine disrupting chemicals (EDCs) in aquatic media and the foodweb in the lower Columbia River. In 2009 and 2010, foodweb sampling at three sites along a gradient of contaminant exposure near Skamania (Washington), Columbia City (Oregon) and Longview (Washington) included water (via passive samplers), bed sediment, invertebrate biomass residing in sediment, a resident fish species (largescale suckers [Catostomus macrocheilus]), and eggs from osprey (Pandion haliaetus). This paper primarily reports fish tissue concentrations. In 2009, composites of fish brain, fillet, liver, stomach, and gonad tissues revealed that overall contaminant concentrations were highest in livers, followed by brain, stomach, gonad, and fillet. Concentrations of halogenated compounds in tissue samples from all three sites ranged from <1 to 400nanograms per gram of wet tissue. Several chemical classes, including PBDEs, organochlorine pesticides, and polychlorinated biphenyls (PCBs), were detected at all sites and in nearly all fish tissues sampled. In 2010, only fish livers were sampled and inter-site concentration differences were not as pronounced as in 2009. Chemical concentrations in sediments, fish tissues, and osprey eggs increased moving downstream from Skamania to the urbanized sites near Columbia City and Longview. Numerous organochlorine (OC) pesticides, both banned and currently used, and PBDEs, were present at each site in multiple media and concentrations exceeded environmental quality benchmarks in some cases. Frequently detected OC compounds included hexachlorobenzene, pentachloroanisole, dichlorodiphenyltrichloroethane (DDT) and its degradates, chlorpyrifos, and oxyfluorofen. Biomagnification of BDE47, 100, 153, and 154 occurred in largescale suckers and osprey eggs. Results support the hypothesis that contaminants in the environment lead to bioaccumulation and potential negative effects in multiple levels of the foodweb.
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Affiliation(s)
- Elena Nilsen
- U.S. Geological Survey, Oregon Water Science Center, 2130 S.W. 5th Avenue, Portland, OR 97201, USA.
| | - Steven Zaugg
- U.S. Geological Survey, National Water Quality Laboratory, West 6th Ave. & Kipling Street, Lakewood, CO 80225, USA
| | - David Alvarez
- U.S. Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, USA
| | - Jennifer Morace
- U.S. Geological Survey, Oregon Water Science Center, 2130 S.W. 5th Avenue, Portland, OR 97201, USA
| | - Ian Waite
- U.S. Geological Survey, Oregon Water Science Center, 2130 S.W. 5th Avenue, Portland, OR 97201, USA
| | - Timothy Counihan
- U.S. Geological Survey, Western Fisheries Research Center, 5501-A Cook-Underwood Road, Cook, WA 98605, USA
| | - Jill Hardiman
- U.S. Geological Survey, Western Fisheries Research Center, 5501-A Cook-Underwood Road, Cook, WA 98605, USA
| | - Leticia Torres
- Department of Biological Sciences and Texas Cooperative Fish and Wildlife Research Unit, Texas Tech University, Lubbock, TX 79409-3131, USA
| | - Reynaldo Patiño
- U.S. Geological Survey and Texas Cooperative Fish and Wildlife Research Unit, Texas Tech University, Lubbock, TX 79409-2120, USA; Departments of Natural Resources Management and of Biological Sciences, Texas Tech University, Lubbock, TX 79409-2120, USA
| | - Matthew Mesa
- U.S. Geological Survey, Western Fisheries Research Center, 5501-A Cook-Underwood Road, Cook, WA 98605, USA
| | - Robert Grove
- U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, 777 NW 9th St., Suite 400, Corvallis, OR 97330, USA
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45
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Simmons DBD, McMaster ME, Reiner EJ, Hewitt LM, Parrott JL, Park BJ, Brown SB, Sherry JP. Wild fish from the Bay of Quinte Area of Concern contain elevated tissue concentrations of PCBs and exhibit evidence of endocrine-related health effects. ENVIRONMENT INTERNATIONAL 2014; 66:124-37. [PMID: 24576942 DOI: 10.1016/j.envint.2014.01.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 01/03/2014] [Accepted: 01/13/2014] [Indexed: 05/27/2023]
Abstract
The Bay of Quinte (BOQ) is an Area of Concern listed under the Great Lakes Water Quality Agreement. The presence of dioxins and dioxin-like PCBs in fish in the BOQ AOC has led to restrictions on fish consumption by humans, which is a beneficial use impairment. Adult yellow perch (Perca flavescens) and brown bullhead (Ameiurus nebulosus) were sampled from Trenton, Belleville, and Deseronto (reference site) in the BOQ. A suite of hormone assays and various measures of exposure and/or sublethal health effects were used to assess the health status of fish of both species and sex. Condition factor, hepatosomatic index, ethoxyresorufin-O-deethylase activity, circulating steroid and thyroid hormones, thyroid activation, oocyte size distribution, spermatogenic cell stages, and plasma vitellogenin were among the endpoints that were significantly (p < 0.05) affected by location. Many of those effects corresponded with significantly (p < 0.05) greater tissue concentrations of polychlorinated biphenyls (PCBs) at Belleville and Trenton. Hepatic extracts from brown bullhead sampled from Trenton had significantly (p < 0.05) greater binding activity to the androgen receptor and sex steroid binding protein. Taken together, these data and preliminary data from a concomitant study suggest that PCBs are likely being hydroxylated in vivo, resulting in enhanced bioactivity at endocrine receptors and measurable health responses. The present study supports the growing body of evidence that PCBs and their metabolites can affect fish thyroid and steroid hormone systems.
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Affiliation(s)
- D B D Simmons
- Aquatic Contaminants Research Division, Environment Canada, National Water Research Institute, Burlington, ON, Canada
| | - M E McMaster
- Aquatic Contaminants Research Division, Environment Canada, National Water Research Institute, Burlington, ON, Canada
| | - E J Reiner
- Laboratory Services Branch, Ontario Ministry of the Environment, Toronto, ON, Canada
| | - L M Hewitt
- Aquatic Contaminants Research Division, Environment Canada, National Water Research Institute, Burlington, ON, Canada
| | - J L Parrott
- Aquatic Contaminants Research Division, Environment Canada, National Water Research Institute, Burlington, ON, Canada
| | - B J Park
- Freshwater Institute, Fisheries and Oceans Canada, Winnipeg, MB, Canada
| | - S B Brown
- Aquatic Contaminants Research Division, Environment Canada, National Water Research Institute, Burlington, ON, Canada
| | - J P Sherry
- Aquatic Contaminants Research Division, Environment Canada, National Water Research Institute, Burlington, ON, Canada
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46
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Li J, Ren S, Han S, Li N. A yeast bioassay for direct measurement of thyroid hormone disrupting effects in water without sample extraction, concentration, or sterilization. CHEMOSPHERE 2014; 100:139-45. [PMID: 24355165 DOI: 10.1016/j.chemosphere.2013.11.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Revised: 11/16/2013] [Accepted: 11/22/2013] [Indexed: 05/16/2023]
Abstract
The present study introduces an improved yeast bioassay for rapid yet sensitive evaluation of thyroid hormone disruption at the level of thyroid receptor (TR) in environmental water samples. This assay does not require water sample preparation and thus requires very little hands-on time. Based on different β-galactosidase substrates, two modified bioassays, a colorimetric bioassay and a chemiluminescent bioassay, were developed. The compounds tested included the known thyroid hormone 3,3',5-triiodo-l-thyronine (T3), the specific TR antagonist amiodarone hydrochloride (AH) and phthalate esters (PAEs), which potentially disrupt thyroid hormone signaling. The EC50 values for T3 were similar to those previously obtained using a 96-well plate bioassay. TR antagonism by AH was studied in the presence of 2.5 × 10(-7)M T3, and the concentration producing 20% of the maximum effect (RIC20) for AH was 3.1 × 10(-7)M and 7.8 × 10(-9)M for the colorimetric bioassay and chemiluminescent bioassay, respectively. None of the tested PAEs induced β-galactosidase expression, but diethylhexyl phthalate, benzyl butyl phthalate and dibutyl phthalate demonstrated TR antagonism. Furthermore, water samples collected from Guanting reservoir in Beijing were evaluated. Although TR agonism was not observed, antagonism was detected in all water samples and is expressed as AH equivalents. The toxicology equivalent quantity values obtained by the chemiluminescent bioassay ranged from 21.2 ± 1.6 to 313.9 ± 28.8 μg L(-1) AH, and similar values were obtained for the colorimetric bioassay. The present study shows that the modified yeast bioassay can be used as a valuable tool for quantification of thyroid hormone disrupting effects in environmental water samples.
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Affiliation(s)
- Jian Li
- Engineering Research Center of Groundwater Pollution Control and Remediation, Ministry of Education, College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Shujuan Ren
- Engineering Research Center of Groundwater Pollution Control and Remediation, Ministry of Education, College of Water Sciences, Beijing Normal University, Beijing 100875, China
| | - Shaolun Han
- Engineering Research Center of Groundwater Pollution Control and Remediation, Ministry of Education, College of Water Sciences, Beijing Normal University, Beijing 100875, China
| | - Na Li
- Key Lab for Biomedical Effects of Nanomaterials and Nanosafety, Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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Van Ael E, Belpaire C, Breine J, Geeraerts C, Van Thuyne G, Eulaers I, Blust R, Bervoets L. Are persistent organic pollutants and metals in eel muscle predictive for the ecological water quality? ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2014; 186:165-171. [PMID: 24378813 DOI: 10.1016/j.envpol.2013.12.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 12/05/2013] [Accepted: 12/06/2013] [Indexed: 06/03/2023]
Abstract
Relationships between the presence of PCBs, OCPs and metals in aquatic ecosystems and the ecological water quality were investigated by combining datasets of long-term monitoring of chemicals in European eel (Anguilla anguilla, N = 1156) in Flanders (Belgium) and the Ecological Quality Ratio (EQR), based on the assessment of fish assemblages at 185 locations. For most pollutants, EQR scores were lower when pollutant levels were higher. Threshold concentrations for a good quality could be formulated for PCB's, most metals and OCPs. Mixed models suggested that the ecological water quality was significantly correlated with the presence of PCBs. However, the low R(2) indicates that other environmental pressures may significantly influence the biotic integrity of fish communities. Empirical data and their analyses are essential to enable defining threshold values of bioaccumulated levels to allow better protection of the aquatic environment and its biota through associated food webs as demanded by the Water Framework Directive.
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Affiliation(s)
- Evy Van Ael
- Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
| | - Claude Belpaire
- Research Institute for Nature and Forest (INBO), Duboislaan 14, 1560 Groenendaal-Hoeilaart, Belgium
| | - Jan Breine
- Research Institute for Nature and Forest (INBO), Duboislaan 14, 1560 Groenendaal-Hoeilaart, Belgium
| | - Caroline Geeraerts
- Research Institute for Nature and Forest (INBO), Gaverstraat 4, 9500 Geraardsbergen, Belgium
| | - Gerlinde Van Thuyne
- Research Institute for Nature and Forest (INBO), Duboislaan 14, 1560 Groenendaal-Hoeilaart, Belgium
| | - Igor Eulaers
- Ethology Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Ronny Blust
- Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Lieven Bervoets
- Systemic Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
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Vidal-Dorsch DE, Bay SM, Greenstein DJ, Baker ME, Hardiman G, Reyes JA, Kelley KM, Schlenk D. Biological responses of marine flatfish exposed to municipal wastewater effluent. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2014; 33:583-591. [PMID: 24273037 DOI: 10.1002/etc.2466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 08/02/2013] [Accepted: 11/13/2013] [Indexed: 06/02/2023]
Abstract
There is increasing concern over the presence of pharmaceutical compounds, personal care products, and other chemicals collectively known as contaminants of emerging concern (CECs) in municipal effluents, yet knowledge of potential environmental impacts related to these compounds is still limited. The present study used laboratory exposures to examine estrogenic, androgenic, and thyroid-related endocrine responses in marine hornyhead turbot (Pleuronichthys verticalis) exposed to CECs from municipal effluents with 2 degrees of treatment. Fish were exposed for 14 d to environmentally realistic concentrations of effluent (0.5%) and to a higher concentration (5%) to investigate dose responses. Plasma concentrations of estradiol (E2), vitellogenin (VTG), 11-keto testosterone, and thyroxine were measured to assess endocrine responses. Contaminants of emerging concern were analyzed to characterize the effluents. Diverse types of effluent CECs were detected. Statistically significant responses were not observed in fish exposed to environmentally realistic concentrations of effluent. Elevated plasma E2 concentrations were observed in males exposed to ammonia concentrations similar to those found in effluents. However, exposure to ammonia did not induce VTG production in male fish. The results of the present study highlight the importance of conducting research with sentinel organisms in laboratory studies to understand the environmental significance of the presence of CECs in aquatic systems.
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49
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Molecular analysis of endocrine disruption in hornyhead turbot at wastewater outfalls in southern california using a second generation multi-species microarray. PLoS One 2013; 8:e75553. [PMID: 24086568 PMCID: PMC3783431 DOI: 10.1371/journal.pone.0075553] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 08/20/2013] [Indexed: 01/28/2023] Open
Abstract
Sentinel fish hornyhead turbot (Pleuronichthysverticalis) captured near wastewater outfalls are used for monitoring exposure to industrial and agricultural chemicals of ~ 20 million people living in coastal Southern California. Although analyses of hormones in blood and organ morphology and histology are useful for assessing contaminant exposure, there is a need for quantitative and sensitive molecular measurements, since contaminants of emerging concern are known to produce subtle effects. We developed a second generation multi-species microarray with expanded content and sensitivity to investigate endocrine disruption in turbot captured near wastewater outfalls in San Diego, Orange County and Los Angeles California. Analysis of expression of genes involved in hormone [e.g., estrogen, androgen, thyroid] responses and xenobiotic metabolism in turbot livers was correlated with a series of phenotypic end points. Molecular analyses of turbot livers uncovered altered expression of vitellogenin and zona pellucida protein, indicating exposure to one or more estrogenic chemicals, as well as, alterations in cytochrome P450 (CYP) 1A, CYP3A and glutathione S-transferase-α indicating induction of the detoxification response. Molecular responses indicative of exposure to endocrine disruptors were observed in field-caught hornyhead turbot captured in Southern California demonstrating the utility of molecular methods for monitoring environmental chemicals in wastewater outfalls. Moreover, this approach can be adapted to monitor other sites for contaminants of emerging concern in other fish species for which there are few available gene sequences.
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50
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Fritsch EB, Pessah IN. Structure-activity relationship of non-coplanar polychlorinated biphenyls toward skeletal muscle ryanodine receptors in rainbow trout (Oncorhynchus mykiss). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 140-141:204-12. [PMID: 23827775 PMCID: PMC3813431 DOI: 10.1016/j.aquatox.2013.06.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 06/05/2013] [Accepted: 06/05/2013] [Indexed: 05/15/2023]
Abstract
Research addressing the health impacts of polychlorinated biphenyls (PCBs) has primarily focused on the effects of coplanar, or dioxin-like (DL), congeners, which is especially true for research assessing impacts in fish species. Ortho substituted non-coplanar, termed non-dioxin-like (NDL), PCBs have received less attention. In mammals, NDL PCBs enhance the activity of ryanodine receptors (RyR), calcium release channels necessary for engaging excitation-contraction (EC) coupling in striated muscle. We utilized in vitro receptor binding analysis to determine whether NDL PCB congeners detected in aquatic environments alter the activity of RyR isoform 1 (RyR1) found in the skeletal muscle of rainbow trout. Congeners 52, 95, 136, and149 were the most efficacious leading to an increase in receptor activity that was approximately 250% greater than that found under solvent control conditions. Other environmentally relevant congeners, namely PCB 153, 151 and 101, which all contain two or more chlorines in the ortho-position, enhanced receptor activity by greater than 160% of baseline. The mono-ortho congeners or the non-ortho PCB 77 had negligible impact on the RyR1. When combined, in binary or environmentally relevant mixtures, congeners shown to enhance receptor activity appeared to display additivity and when the active PCB 95 was present with the non-active congener PCB 77 the impact on receptor activity was reduced from 250% to 230%. The important role of the RyR and the demonstrated additive nature of NDL congeners toward altering channel function calls for further investigation into the ecological implications of altered RyR function in fish with high PCB burdens.
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Affiliation(s)
- Erika B Fritsch
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA.
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