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Chen JR, Wu SM, Tsai SC, Hsien FC, Huang CT. Changes in vitellogenin and estrogen receptor expression and 17β-estradiol concentration in male juvenile tilapia can be used to evaluate endocrine-disrupting chemicals. Comp Biochem Physiol C Toxicol Pharmacol 2020; 229:108682. [PMID: 31816426 DOI: 10.1016/j.cbpc.2019.108682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/28/2019] [Accepted: 12/04/2019] [Indexed: 11/25/2022]
Abstract
The effects of endocrine disruption with respect to potential human toxicities have been extensively evaluated to date. However, the standard testing methods used have not always taken the most pertinent approach. In this study, we used juvenile male tilapia (Oreochromis niloticus) as an animal model to test for endocrine disruption by chemicals. We measured 17β-estradiol (E2) concentrations, and the mRNA relative expression ratio (RER; treatment/control) of vitellogenin (vtg2) and estrogen receptors (ERs) to assess whether the effluent concentration of selected plasticizers disrupt E2 function in fish. We found that the vtg2 RER was significantly increased after exposure to 2.52 nM E2 for 5 days, 0.438 μM of bisphenol A (BPA) for 7 days, or 2.865 μM Cd2+ for 7 days. These data support vtg2 transcript level as a sensitive biomarker to evaluate contamination of water by endocrine disrupting chemicals (EDCs). However, vtg2 expression did not respond to fluctuations of E2 concentrations in the tilapia juveniles exposed to selected plasticizers. However, the RER of three types of ERs appeared to change dramatically upon exposure to plasticizers. ERα significantly increased, but ERβ2 decreased with 3.6 μM DEP exposure. Both ERα and ERβ2 decreased significantly after 1.44 μM DIBP exposure. We suggest that changes of vtg2 mRNA RER, E2 levels and ERs mRNA expression should be taken into consideration at the same time to determine if chemical contaminants in the water are endocrine disrupters.
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Affiliation(s)
- Jung-Ren Chen
- Department of Biological Science and Technology, I-Shou University, Kaohsiung City 82445, Taiwan.
| | - Su Mei Wu
- Department of Aquatic Biosciences, National Chiayi University, Chiayi 60004, Taiwan
| | - Shu Chuan Tsai
- Department of Nursing, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan
| | - Fang-Chun Hsien
- Department of Aquatic Biosciences, National Chiayi University, Chiayi 60004, Taiwan
| | - Chieh Ting Huang
- Department of Aquatic Biosciences, National Chiayi University, Chiayi 60004, Taiwan
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2
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David V, Joachim S, Porcher JM, Beaudouin R. Modelling BPA effects on three-spined stickleback population dynamics in mesocosms to improve the understanding of population effects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 692:854-867. [PMID: 31539991 DOI: 10.1016/j.scitotenv.2019.07.274] [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: 04/19/2019] [Revised: 07/03/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
Bisphenol A (BPA), a well-known endocrine-disrupting chemical, is ubiquitously present in the aquatic environment. Its impacts at the population level on three-spined sticklebacks (Gasterosteus aculeatus) have been studied in artificial streams with low-dose BPA concentrations. The causes explaining the observed effects remained unclear. Here, we used an individual-based model coupled to a Dynamic Energy Budget model to (i) assess the potential of modelling to predict impacts at the population level using individual level laboratory ecotoxicological endpoints and (ii) provide insight on the mechanisms of BPA toxicity in these mesocosms. To do that, both direct and indirect effects of BPA on three-spined sticklebacks were incorporated in the model. Indeed, direct BPA effects on fish have been identified based on literature data whereas indirect effects on sticklebacks have been taken into account using sampling data of their prey from the exposed artificial streams. Results of the modelling showed that direct BPA effects on fish (impacts on gonad formation, growth, male reproductive behavior, eggs and larvae survival) mainly explained the three-spined stickleback population structure in the mesocosms, but indirect effects were not negligible. Hence, this study showed the potential of modelling in risk assessment to predict the impacts on fish population viability from behavioral and physiological effects measured on organisms.
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Affiliation(s)
- Viviane David
- Unit of Models for Ecotoxicology and Toxicology (METO), INERIS, 60550 Verneuil en Halatte, France; UMR-I 02 SEBIO, INERIS, Parc ALATA, BP2, 60550 Verneuil-en-Halatte, France
| | - Sandrine Joachim
- UMR-I 02 SEBIO, INERIS, Parc ALATA, BP2, 60550 Verneuil-en-Halatte, France
| | - Jean-Marc Porcher
- UMR-I 02 SEBIO, INERIS, Parc ALATA, BP2, 60550 Verneuil-en-Halatte, France
| | - Rémy Beaudouin
- Unit of Models for Ecotoxicology and Toxicology (METO), INERIS, 60550 Verneuil en Halatte, France; UMR-I 02 SEBIO, INERIS, Parc ALATA, BP2, 60550 Verneuil-en-Halatte, France.
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3
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Wang J, Shan R, Zhang X, Tian H, Wang W, Ru S. Development of a lipovitellin-based sandwich ELISA for quantification of vitellogenin in surface mucus and plasma of goldfish (Carassius auratus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 120:80-87. [PMID: 26036419 DOI: 10.1016/j.ecoenv.2015.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 04/03/2015] [Accepted: 05/10/2015] [Indexed: 06/04/2023]
Abstract
Goldfish (Carassius auratus) vitellogenin (Vtg) is an efficient biomarker for estrogen contamination in aquatic environments. In this study, Vtg and lipovitellin (Lv) were purified from the plasma of 17β-estradiol (E2)-induced male goldfish and unfertilized eggs of females, and were used to generate polyclonal antibodies against Vtg (anti-Vtg) and Lv (anti-Lv), respectively. SDS-PAGE and Western blot were performed to confirm the specificity of the two antibodies and the immunological similarity between Vtg and Lv. As anti-Lv recognized more antigen epitopes than anti-Vtg, it was used to develop a sandwich enzyme-linked immunosorbent assay (ELISA) for goldfish Vtg with purified Lv as the standard. The detection limit of the assay was 1.82ng/mL, and the working range was 3.9-250ng/mL. The use of Lv instead of Vtg as the standard provided greater precision and strengthened the robustness of the sandwich ELISA. Western blot and the Lv-based ELISA were used to detect Vtg inductions in surface mucus and plasma of E2-induced goldfish. The surface mucus Vtg level in E2-induced males was significantly higher than that in the control males and E2-induced females, and was much closer to the plasma Vtg level in E2-induced males than that in E2-induced females. Therefore, the surface mucus Vtg level of male goldfish may be a reliable indicator of estrogenic activity in the aquatic environment.
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Affiliation(s)
- Jun Wang
- Marine Life Science College, Ocean University of China, Qingdao 266003, China
| | - Ruihou Shan
- Marine Life Science College, Ocean University of China, Qingdao 266003, China
| | - Xiaona Zhang
- Marine Life Science College, Ocean University of China, Qingdao 266003, China
| | - Hua Tian
- Marine Life Science College, Ocean University of China, Qingdao 266003, China
| | - Wei Wang
- Marine Life Science College, Ocean University of China, Qingdao 266003, China.
| | - Shaoguo Ru
- Marine Life Science College, Ocean University of China, Qingdao 266003, China.
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4
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Wang J, Bing X, Yu K, Tian H, Wang W, Ru S. Preparation of a polyclonal antibody against goldfish (Carassius auratus) vitellogenin and its application to detect the estrogenic effects of monocrotophos pesticide. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 111:109-116. [PMID: 25450922 DOI: 10.1016/j.ecoenv.2014.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 10/05/2014] [Accepted: 10/06/2014] [Indexed: 06/04/2023]
Abstract
Goldfish (Carassius auratus) represents a good model to detect the estrogenic effects of chemicals, and vitellogenin (Vtg) is a vital indicator of estrogenic activity. The heterologous anti-carp Vtg antibody has previously been used for goldfish Vtg detection. Here, we report the preparation of an anti-goldfish Vtg antibody to improve the sensitivity and specificity of goldfish Vtg immunoassays. Vtg was purified from the plasma of 17β-estradiol (E2)-induced goldfish by gel filtration followed by anion-exchange chromatography. It was characterized as a phospholipoglycoprotein with an apparent molecular weight of ~460 kDa and separated into three major polypeptides corresponding to ~130, ~106, and ~81 kDa by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). A polyclonal antibody against goldfish Vtg was raised in rabbits and found to be specific for goldfish Vtg through immunoelectrophoresis and Western blot. A sensitive sandwich enzyme-linked immunosorbent assay (ELISA) was developed for the quantification of plasma Vtg, with a detection limit of 3.6 ng/mL and a detection range from 7.8 to 250 ng/mL. The intra- and inter-assay coefficients of variations were 2.4-6.8% and 6.7-10.8%, respectively. Additionally, we qualitatively and quantitatively detected the induction of Vtg in male fish exposed to 0.01, 0.01, and 1.00 mg/L monocrotophos pesticide by Western blot and ELISA. The homologous sandwich ELISA based on the anti-goldfish Vtg antibody could provide a valuable tool for the study of estrogenic effects of exogenous chemicals on goldfish.
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Affiliation(s)
- Jun Wang
- Marine Life Science College, Ocean University of China, 5 Yushan Road, Qingdao 266003, Shandong Province, China
| | - Xin Bing
- Marine Life Science College, Ocean University of China, 5 Yushan Road, Qingdao 266003, Shandong Province, China
| | - Kun Yu
- Marine Life Science College, Ocean University of China, 5 Yushan Road, Qingdao 266003, Shandong Province, China
| | - Hua Tian
- Marine Life Science College, Ocean University of China, 5 Yushan Road, Qingdao 266003, Shandong Province, China
| | - Wei Wang
- Marine Life Science College, Ocean University of China, 5 Yushan Road, Qingdao 266003, Shandong Province, China.
| | - Shaoguo Ru
- Marine Life Science College, Ocean University of China, 5 Yushan Road, Qingdao 266003, Shandong Province, China.
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5
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Golshan M, Hatef A, Zare A, Socha M, Milla S, Gosiewski G, Fontaine P, Sokołowska-Mikołajczyk M, Habibi HR, Alavi SMH. Alternations in neuroendocrine and endocrine regulation of reproduction in male goldfish (Carassius auratus) following an acute and chronic exposure to vinclozolin, in vivo. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 155:73-83. [PMID: 24995616 DOI: 10.1016/j.aquatox.2014.06.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 05/31/2014] [Accepted: 06/13/2014] [Indexed: 06/03/2023]
Abstract
The fungicide vinclozolin (VZ) is in use globally and known to disrupt reproductive function in male. The present study tested the hypothesis that VZ disrupts testicular function in goldfish (Carassius auratus) by affecting brain-pituitary-testis axis. Goldfish were exposed to 100, 400 and 800 μg/L VZ and 5 μg/L 17β-estradiol (E2) for comparison. In VZ treated goldfish, 11-ketotesteosterone (11-KT) secretion was changed depending on dose and duration period of treatment. Following 7 days of exposure, 11-KT was decreased in goldfish exposed to 800 μg/L VZ, while it was increased in goldfish exposed to 100 μg/L VZ after 30 days of exposure. Circulating E2 level was unchanged in VZ treated goldfish, however the E2/11-KT ratio was increased in a concentration-related manner. In E2 treated goldfish, circulatory 11-KT and E2 levels were decreased and increased, respectively, which resulted in an increase in the E2/11-KT ratio. Exposure to VZ at 100 μg/L caused a significant increase in the circulatory luteinizing hormone (LH) after 30 days. In E2 treated fish circulatory LH was decreased, significantly. Transcripts of genes encoding gonadotropin-releasing hormone and androgen receptor in the brain, and those of genes encoding LH and follicle-stimulating hormone receptors, StAR, CYP17, and 3β-HSD in the testis changed in VZ-treated goldfish depending on concentration and period of treatment. mRNA of genes encoding vitellogenin and estrogen receptor in the liver and cytochrome P450 aromatase in the brain were increased in E2-treated goldfish. The results suggest that VZ-induced changes in 11-KT were due to disruption in brain-pituitary-testis axis and provide integrated characterization of VZ-related reproductive disorders in male fish.
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Affiliation(s)
- Mahdi Golshan
- Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia, 389 25 Vodňany, Czech Republic
| | - Azadeh Hatef
- Veterinary Biomedical Sciences Department, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B4, Canada; Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia, 389 25 Vodňany, Czech Republic
| | - Ava Zare
- Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Magdalena Socha
- Department of Ichthyobiology and Fisheries, University of Agriculture, Kraków 30-199, Poland
| | - Sylvain Milla
- Research Unit Animal and Functionalities of Animal Products, INRA, University of Lorraine, Vandoeuvre-lès-Nancy 54505, France
| | - Grzegorz Gosiewski
- Department of Ichthyobiology and Fisheries, University of Agriculture, Kraków 30-199, Poland
| | - Pascal Fontaine
- Research Unit Animal and Functionalities of Animal Products, INRA, University of Lorraine, Vandoeuvre-lès-Nancy 54505, France
| | | | - Hamid R Habibi
- Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Sayyed Mohammad Hadi Alavi
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 165 21 Prague 6, Czech Republic; Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia, 389 25 Vodňany, Czech Republic.
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6
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Flint S, Markle T, Thompson S, Wallace E. Bisphenol A exposure, effects, and policy: a wildlife perspective. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2012; 104:19-34. [PMID: 22481365 DOI: 10.1016/j.jenvman.2012.03.021] [Citation(s) in RCA: 450] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Revised: 02/24/2012] [Accepted: 03/10/2012] [Indexed: 05/22/2023]
Abstract
Thousands of anthropogenic chemicals are present in the environment, and mounting evidence indicates that some have endocrine-disrupting effects in a variety of organisms. Of particular concern are chemicals that act as agonists or antagonists on vertebrate estrogen or androgen receptors. One such compound is bisphenol A (BPA), which appears to be both an estrogen receptor agonist and an androgen receptor antagonist. Used in the manufacture of plastic resins, BPA is found at low levels in surface-water, sediments, soils, and biota. Although it degrades quickly, it is pseudo-persistent in the environment because of continual inputs. Due to its environmental ubiquity, organisms may be exposed to BPA chronically or during sensitive life stages. While the impacts of BPA-related endocrine disruption in humans have been extensively studied, the endocrinal and systemic effects in wildlife are less well known. This article reviews the current state of knowledge of BPA inputs to the environment, routes of exposure, and effects on wildlife. We then critically examine the regulatory structure governing the environmental endpoints of BPA in the United States, European Union, and Canada, and discuss major challenges to the effective regulation of BPA. We conclude with a survey of treatment and mitigation options.
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Affiliation(s)
- Shelby Flint
- University of Minnesota, 100 Ecology, 1987 Upper Buford Circle, Saint Paul, MN 55108, USA.
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7
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Maltais D, Roy RL, Couillard CM. Hybrid ELISAs for vitellogenins of the endangered copper redhorse Moxostoma hubbsi and the shorthead redhorse Moxostoma macrolepidotum (Cypriniformes, catostomidae). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2010; 73:883-892. [PMID: 20398938 DOI: 10.1016/j.ecoenv.2010.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 03/15/2010] [Accepted: 03/16/2010] [Indexed: 05/29/2023]
Abstract
The shorthead redhorse (sr) Moxostoma macrolepidotum is endemic in North America, while in Canada the copper redhorse (cr) Moxostoma hubbsi is classified as endangered. A commercial heterologous carp vitellogenin (VTG) sandwich ELISA underestimates VTGs in these species. Hybrid ELISAs, using anti-carp VTG antibodies and purified sr- and cr-VTGs as standards, were validated to measure VTGs in plasma and surface mucus of redhorse species. The hybrid ELISAs showed good precision, sensitivity and accuracy. Following induction with beta-estradiol 3-benzoate (E2B), levels of plasma VTG (mean+/-SEM) in male sr increased from 2.7+/-1.5 microg/ml to 16.5+/-2.2mg/ml. In immature cr, plasma VTG increased to 70.1+/-13.8 mg/ml after induction, from an initial value of 37.7+/-51.0 microg/ml. Levels of VTG in mucus from E2B-injected fish were highly correlated (p<0.0001) with levels in plasma, but not in a non-induced mature female. Hybrid assays are a good compromise between homologous and heterologous assays, especially for small-bodied or endangered fish species. The performance of the hybrid assays strongly suggests they could be used to determine exposure of these species to estrogenic contaminants and contribute to restoration efforts of the copper redhorse.
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Affiliation(s)
- Domynick Maltais
- Pêches et Océans Canada, Institut Maurice-Lamontagne, Mont-Joli, Québec, Canada.
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8
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Diniz MS, Peres I, Castro L, Freitas AC, Rocha-Santos TAP, Costa PM, Pereira R, Duarte AC. Effects of ECF-Kraft pulp mill effluent treated with fungi (Rhizopus oryzae) on reproductive steroids and liver CYP1A of exposed goldfish (Carassius auratus). ECOTOXICOLOGY (LONDON, ENGLAND) 2009; 18:1011-1017. [PMID: 19621256 DOI: 10.1007/s10646-009-0392-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Accepted: 07/08/2009] [Indexed: 05/28/2023]
Abstract
The toxicity of bleached Kraft pulp mill effluents (BKME) is usually attributed to chemical compounds which are produced and released throughout various stages of pulp and paper production. The main objective of the present work was to detect sub-lethal responses of goldfish (Carassius auratus) to secondary treated BKME which was treated with Rhizopus oryzae. A total of 96 carps (C. auratus; 11 +/- 3 g) were exposed to different concentrations of the post-treated effluent (0, 1, 10, 25, 50, and 100%), in 28 days semi-static tests. Several biomarkers were then evaluated to assess the toxicological effects: induction of CYP1A (metabolic processes of organic compounds in liver), change in steroid profiles (11-Ketotestosterone, 17beta-estradiol), histopathology of liver and gonads and somatic indices (GSI, HSI) for endocrine disruption and other physiological disturbances. The most significant results show an induction of CYP1A in both sexes and a decrease of 17beta-estradiol concentrations in females. Histopathological changes such as liver tissue degeneration were observed in fish exposed to 50 and 100% of the BKME. Although the BKME was biologically treated there are some chemical compounds in the effluent that are capable to affect fish physiology, however, a clear evidence for endocrine disruption was not found.
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Affiliation(s)
- M S Diniz
- Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia, Instituto do Mar, Universidade Nova de Lisboa, Quinta da Torre, 2829-516, Caparica, Portugal.
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9
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p,p'-DDE induces apoptosis of rat Sertoli cells via a FasL-dependent pathway. J Biomed Biotechnol 2009; 2009:181282. [PMID: 19644561 PMCID: PMC2717566 DOI: 10.1155/2009/181282] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2009] [Accepted: 05/20/2009] [Indexed: 01/17/2023] Open
Abstract
One,1-dichloro-2,2 bis(p-chlorophenyl) ethylene (p,p′-DDE), the major metabolite of 2,2-bis(4-Chlorophenyl)-1,1,1-trichloroethane (DDT), is a known persistent organic pollutant and male reproductive toxicant. It has antiandrogenic effect. However, the mechanism by which p,p′-DDE exposure causes male reproductive
toxicity remains unknown. In the present study, rat Sertoli cells were used to investigate the molecular mechanism involved in p,p′-DDE-induced toxicity in male reproductive system. The results indicated that p,p′-DDE exposure at over 30 μM showed the induction of apoptotic cell death. p,p′-DDE could induce increases in FasL mRNA and protein, which could be blocked by an antioxidant agent, N-acetyl-l-cysteine (NAC). In addition, caspase-3 and -8 were activated by p,p′-DDE treatment in these cells. The activation of NF-κB was enhanced with the increase of p,p′-DDE dose. Taken together, these results suggested that exposure to p,p′-DDE might induce apoptosis of rat Sertoli cells through a FasL-dependent pathway.
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Lamon L, Dalla Valle M, Critto A, Marcomini A. Introducing an integrated climate change perspective in POPs modelling, monitoring and regulation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2009; 157:1971-1980. [PMID: 19272683 DOI: 10.1016/j.envpol.2009.02.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Revised: 02/08/2009] [Accepted: 02/10/2009] [Indexed: 05/27/2023]
Abstract
This paper presents a review on the implications of climate change on the monitoring, modelling and regulation of persistent organic pollutants (POPs). Current research gaps are also identified and discussed. Long-term data sets are essential to identify relationships between climate fluctuations and changes in chemical species distribution. Reconstructing the influence of climatic changes on POPs environmental behaviour is very challenging in some local studies, and some insights can be obtained by the few available dated sediment cores or by studying POPs response to inter-annual climate fluctuations. Knowledge gaps and future projections can be studied by developing and applying various modelling tools, identifying compounds susceptibility to climate change, local and global effects, orienting international policies. Long-term monitoring strategies and modelling exercises taking into account climate change should be considered when devising new regulatory plans in chemicals management.
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Affiliation(s)
- L Lamon
- CMCC, Euro-Mediterranean Centre for Climate Change, Via Augusto Imperatore 16, 73100 Lecce, Italy
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11
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Yamaguchi A, Ishibashi H, Kohra S, Arizono K, Kato K, Nakahama T, Kanno Y, Inouye Y, Tominaga N. Expression Analysis of Estrogen-responsive Genes Vitellogenin 1 and 2 in Liver of Male Medaka (Oryzias latipes) Exposed to Selective Ligands of Estrogen Receptor Subtypes. ACTA ACUST UNITED AC 2009. [DOI: 10.1248/jhs.55.930] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Akemi Yamaguchi
- Department of Chemical and Biological Engineering, Ariake National College of Technology
| | | | - Shinya Kohra
- Faculty of Environmental Studies, Nagasaki University
| | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Keisuke Kato
- Faculty of Pharmaceutical Sciences, Toho University
| | | | | | | | - Nobuaki Tominaga
- Department of Chemical and Biological Engineering, Ariake National College of Technology
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12
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Diniz MS, Peres I, Magalhães-Antoine I, Falla J, Pihan JC. Estrogenic effects in crucian carp (Carassius carassius) exposed to treated sewage effluent. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2005; 62:427-35. [PMID: 16216638 DOI: 10.1016/j.ecoenv.2004.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2004] [Revised: 11/17/2004] [Accepted: 11/17/2004] [Indexed: 05/04/2023]
Abstract
To assess the estrogenicity of a municipal sewage treatment plant, sexually mature crucian carp of both sexes were exposed for 28 days to domestic treated sewage effluent running with a constant flow of water, with tap water and with different concentrations of the sewage effluent (25%, 50% and 100%). Vitellogenin (VTG), gonadosomatic index (GSI), hepatosomatic index (HSI), and histological abnormalities were used to assess the estrogenic potency of the effluent. Results show a significant (P<0.05) increase in VTG levels in all exposed male fish. A significant (P<0.05) reduction in the GSI was only observed in fish exposed to 100% effluent. Morphological changes were detected by histological evaluation, revealing severe effects on the testes. Spermatogenesis was progressively reduced to total inhibition in fish exposed to 100% effluent. One of the most pronounced effects detected was the presence of oocytes in male gonads, observed in 20% of males exposed to 100% sewage effluent.
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Affiliation(s)
- M S Diniz
- Faculdade de Ciências e Tecnologia, Dep. de Ciências e Engenharia do Ambiente, Universidade Nova de Lisboa, Quinta da Torre, 2825 Monte da Caparica, Portugal.
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13
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Ishibashi H, Watanabe N, Matsumura N, Hirano M, Nagao Y, Shiratsuchi H, Kohra S, Yoshihara SI, Arizono K. Toxicity to early life stages and an estrogenic effect of a bisphenol A metabolite, 4-methyl-2,4-bis(4-hydroxyphenyl)pent-1-ene on the medaka (Oryzias latipes). Life Sci 2005; 77:2643-55. [PMID: 15961118 DOI: 10.1016/j.lfs.2005.03.025] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2004] [Accepted: 03/01/2005] [Indexed: 10/25/2022]
Abstract
In a recent study, it was reported that 4-methyl-2,4-bis(4-hydroxyphenyl)pent-1-ene (MBP), a metabolite of bisphenol A (BPA; 2,2-bis(4-hydroxyphenyl)propane), showed estrogenic activity in several in vitro assays, and the estrogenic activity of MBP was higher than that of BPA. In this study, we have investigated the early life stage toxicity and estrogenic effect of MBP on medaka (Oryzias latipes). The 96-h median lethal concentration value of MBP and BPA with 24-h-old larvae was estimated to be 1,640 and 13,900 microg/l, respectively. The hatchability of fertilized eggs exposed to MBP and BPA over 14 days was significantly decreased at doses of 2,500 microg/l and 12,500 microg/l, respectively. Moreover, to compare the potency of estrogenic activity in vivo, male medaka were exposed to various concentrations of MBP and BPA for 21 days. The lowest-observed-effect concentrations of MBP and BPA for hepatic vitellogenin induction in male medaka were estimated to be 4.1 and 1,000 microg/l, respectively. These results suggest that MBP has high toxicity for early life stages of the medaka, and that the estrogenic activity of MBP was about 250-fold higher than that of BPA to male medaka.
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Affiliation(s)
- Hiroshi Ishibashi
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, 3-1-100 Tsukide, Kumamoto 862-8502, Japan.
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Tom M, Auslander M. Transcript and protein environmental biomarkers in fish--a review. CHEMOSPHERE 2005; 59:155-162. [PMID: 15722086 DOI: 10.1016/j.chemosphere.2004.10.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2004] [Revised: 10/11/2004] [Accepted: 10/25/2004] [Indexed: 05/24/2023]
Abstract
The levels of contaminant-affected gene products (transcripts and proteins) are increasingly utilized as environmental biomarkers, and their appropriate implementation as diagnostic tools is discussed. The required characteristics of a gene product biomarker are accurate evaluation using properly normalized absolute units, aiming at long-term comparability of biomarker levels over a wide geographical range and among many laboratories. Quantitative RT-PCR and competitive ELISA are suggested as preferred evaluation methods for transcript and protein, respectively. Constitutively expressed RNAs or proteins which are part of the examined homogenate are suggested as normalizing agents, compensating for variable processing efficiency. Essential characterization of expression patterns is suggested, providing reference values to be compared to the monitored levels. This comparison would enable estimation of the intensity of biological effects of contaminants. Contaminant-independent reference expression patterns should include natural fluctuations of the biomarker level. Contaminant-dependent patterns should include dose response to model contaminants chronically administered in two environmentally-realistic routes, reaching extreme sub-lethal affected levels. Recent studies using fish as environmental sentinel species, applying gene products as environmental biomarkers, and implementing at least part of the depicted methodologies are reviewed.
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Affiliation(s)
- Moshe Tom
- Marine Biology and Biotechnology, Israel Oceanographic and Limnological Research, Tel Shikmona, P.O.B. 8030, Haifa 31080, Israel.
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15
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Spanò L, Tyler CR, van Aerle R, Devos P, Mandiki SNM, Silvestre F, Thomé JP, Kestemont P. Effects of atrazine on sex steroid dynamics, plasma vitellogenin concentration and gonad development in adult goldfish (Carassius auratus). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2004; 66:369-379. [PMID: 15168945 DOI: 10.1016/j.aquatox.2003.10.009] [Citation(s) in RCA: 122] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Sexually mature goldfish (Carassius auratus) of both sexes were exposed to two doses (100 and 1000 microg/l) of the widely used herbicide atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) for a period of 21 days and effects on the concentrations of gonad and plasma sex steroids (testosterone (T), 17beta-estradiol (E2) and 11-ketotestosterone (11-KT)), plasma vitellogenin (VTG) and gonad histo-morphology assessed. Atrazine did not show any obvious estrogenic effect in males, as determined by a lack of vitellogenin induction. There were, however, effects of atrazine on plasma androgen concentrations (androgen dynamics) and tissue (plasma and gonad) estrogen concentrations in male goldfish; exposure to 1000 microg/l atrazine induced suppression in both testosterone and 11-ketotestosterone, and resulted in elevated 17beta-estradiol, after 21 day of exposure. Further, these suppressive effects on plasma androgens and the induction in estrogen were dose- and time-related. The highest atrazine exposure dose induced structural disruption in the testis and both 100 and 1000 microg/l induced elevated levels of atresia in ovaries.
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Ishibashi H, Kobayashi M, Tomiyasu Y, Miyahara M, Tachibana K, Tsuchimoto M, Arizono K. Development of Plasma Vitellogenin Assay for Estrogenic Effects of Endocrine-Disrupting Chemicals Using Ovariectomized Goldfish (Carassius auratus). ACTA ACUST UNITED AC 2004. [DOI: 10.1248/jhs.50.169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hiroshi Ishibashi
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
- Graduate School of Science and Technology, Nagasaki University
| | - Makito Kobayashi
- Department of Biology, Division of Natural Sciences, International Christian University
| | - Yuki Tomiyasu
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Maki Miyahara
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | | | | | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
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17
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Takao Y, Yamashita K, Kohra S, Inudo M, Nagae M, Tominaga N, Ishibashi Y, Sekizawa J, Miyairi S, Arizono K. High Sensitivity Analysis of Indirubin by Silylation Using GC/MS. ACTA ACUST UNITED AC 2003. [DOI: 10.1248/jhs.49.88] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yuji Takao
- Faculty of Environmental Studies, Nagasaki University
| | | | - Shinya Kohra
- Faculty of Environmental Studies, Nagasaki University
| | - Makiko Inudo
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Masaki Nagae
- Faculty of Environmental Studies, Nagasaki University
| | - Nobuaki Tominaga
- Department of Chemical and Biological Engineering, Ariake National College of Technology
| | | | - Jun Sekizawa
- Division of Chem-Bio Informatics, National Institute of Health Sciences
| | | | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
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18
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Miyahara M, Ishibashi H, Inudo M, Nishijima H, Iguchi T, Guillette Jr. LJ, Arizono K. Estrogenic Activity of a Diet to Estrogen Receptors -.ALPHA. and -.BETA. in an Experimental Animal. ACTA ACUST UNITED AC 2003. [DOI: 10.1248/jhs.49.481] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Maki Miyahara
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Hiroshi Ishibashi
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Makiko Inudo
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Haruka Nishijima
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Taisen Iguchi
- Okazaki National Research Institutes Center for Integrative Bioscience Bioenvironmental Science
| | | | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
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19
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Ishibashi H, Kobayashi M, Koshiishi T, Moriwaki T, Tachibana K, Tsuchimoto M, Soyano K, Iguchi T, Mori C, Arizono K. Induction of Plasma Vitellogenin Synthesis by the Commercial Fish Diets in Male Goldfish(Carassius auratus) and Dietary Phytoestrogens. ACTA ACUST UNITED AC 2002. [DOI: 10.1248/jhs.48.427] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Makito Kobayashi
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, University of Tokyo
| | | | | | | | | | - Kiyoshi Soyano
- Graduate School of Science and Technology, Nagasaki University
| | - Taisen Iguchi
- Okazaki National Research Institutes Center for Integrative Bioscience
| | - Chisato Mori
- Department of Bioenvironmental Medicine, Graduate School of Medicine
| | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
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