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Banaee M, Badr AA, Multisanti CR, Haghi BN, Faggio C. The toxicity effects of the individual and combined exposure of methyl tert-butyl ether (MTBE) and tire rubber powder (RP) on Nile tilapia fish (Oreochromis niloticus). Comp Biochem Physiol C Toxicol Pharmacol 2023; 274:109759. [PMID: 37778452 DOI: 10.1016/j.cbpc.2023.109759] [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: 06/23/2023] [Revised: 09/01/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023]
Abstract
Methyl tert-butyl ether (MTBE) is soluble in water and can contaminate water sources when it spills during transportation or leaks from underground storage tanks. Incomplete combustion releases MTBE as exhaust fumes that can be deposited on urban surfaces. Meanwhile, car tires erosion emits of large amounts of rubber dust (RP), easily transported to water bodies. Therefore, this study has the objective of assessing the toxicity of varying concentrations of MTBE (0, 2.5, 5.0 μL L-1) and RP (0, 5.0, 10.0 mg L-1 RP), both individually and in combination, over a period of 28 days on Nile tilapia (Oreochromis niloticus). MTBE and PR decreased fish growth performance. Blood biochemical analytes indicated that MTBE and RP led to increasing Aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), and creatinine phosphokinase (CPK), alkaline phosphatase and gamma-glutamyl transferase (GGT) activities. Alterations related to glucose, triglycerides, cholesterol, and creatinine, plasma contents, were also observed. Increased antioxidant biomarkers, including superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx), glutathione reductase (GR), and malondialdehyde (MDA), was observed. Exposure fish to MTBE and PR changed metabolic profile of muscle tissue. Moreover, results showed that MTBE, its metabolites, and PR could accumulate in the muscle tissue of fish. Results suggest that MTBE and RP can impact fish health, both individually and when combined. The presence of MTBE enhances the toxicity of RP, indicating a synergistic effect. Nevertheless, further studies are needed to understand the impact of toxic compounds on aquatic environments and organisms' health.
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Affiliation(s)
- Mahdi Banaee
- Aquaculture Department, Faculty of Natural Resources and the Environment, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran.
| | - Ahmad Ali Badr
- Biology Department, Faculty of Basic Science, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
| | - Cristiana Roberta Multisanti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Behzad Nematdoost Haghi
- Aquaculture Department, Faculty of Natural Resources and the Environment, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy.
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Burden N, Brown RJ, Holmes B, Panter GH, Salinas ER, Sewell F, Weltje L, Wheeler JR, Wolf Y, Lagadic L. An international cross-laboratory survey on fish vitellogenin analysis: Methodological challenges and opportunities for best practice. Regul Toxicol Pharmacol 2023; 145:105501. [PMID: 37820895 DOI: 10.1016/j.yrtph.2023.105501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 09/20/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
Vitellogenin (VTG) is a biomarker for possible endocrine activity of chemicals acting via the estrogen, androgen, or steroidogenesis pathways. VTG is assessed in standardised fish guideline studies conducted for regulatory safety assessment of chemicals. VTG data can be highly variable leading to concerns for potential equivocal, false positive and/or negative outcomes. Consequently, additional fish testing may be required to address uncertainties in the VTG response, and possibly erroneous/missed identification of endocrine activity. To better understand the technical challenges of VTG assessment and reporting for regulatory purposes, a survey was sent to 27 testing laboratories performing these analyses. The survey results from 16 respondents (6 from the UK, 3 from the USA, and 7 from the EU) were analysed and discussed in a follow-up webinar. High variability in background VTG concentrations was widely acknowledged and thought to be associated with fish batch, husbandry, laboratory practices, and several methodological aspects. These include sample collection and storage, VTG quantification, data handling, and the benchmarks used for data acceptability. Information gathered in the survey provides a basis for improving and harmonizing the measurement of VTG in fish, and an opportunity to reassess the suitability of current acceptability criteria in test guidelines.
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Affiliation(s)
- Natalie Burden
- National Centre for the Replacement, Refinement and Reduction of Animals in Research, Gibbs Building, 215 Euston Road, London, NW1 2BE, UK.
| | - Rebecca J Brown
- wca Environment Ltd., Brunel House, Volunteer Way, Faringdon, Oxfordshire, SN7 7YR, UK.
| | - Breanne Holmes
- Bayer AG, R&D Crop Science, Environmental Safety, Alfred-Nobel-Str. 50, 40789, Monheim, Germany.
| | - Grace H Panter
- wca Environment Ltd., Brunel House, Volunteer Way, Faringdon, Oxfordshire, SN7 7YR, UK
| | - Edward R Salinas
- BASF SE, Agricultural Solutions - Ecotoxicology, Speyerer Strasse 2, 67117, Limburgerhof, Germany.
| | - Fiona Sewell
- National Centre for the Replacement, Refinement and Reduction of Animals in Research, Gibbs Building, 215 Euston Road, London, NW1 2BE, UK
| | - Lennart Weltje
- BASF SE, Agricultural Solutions - Ecotoxicology, Speyerer Strasse 2, 67117, Limburgerhof, Germany.
| | - James R Wheeler
- Corteva Agriscience, Zuid-Oostsingel 24D, 4611 BB, Bergen op Zoom, the Netherlands.
| | - Yvonne Wolf
- Bayer AG, R&D Crop Science, Environmental Safety, Alfred-Nobel-Str. 50, 40789, Monheim, Germany.
| | - Laurent Lagadic
- Bayer AG, R&D Crop Science, Environmental Safety, Alfred-Nobel-Str. 50, 40789, Monheim, Germany.
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Brown RJ, Panter GH, Burden N, Salinas ER, Weltje L, Wheeler JR, Wolf Y, Lagadic L. Are changes in vitellogenin concentrations in fish reliable indicators of chemical-induced endocrine activity? ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115563. [PMID: 37827093 DOI: 10.1016/j.ecoenv.2023.115563] [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: 07/10/2023] [Revised: 10/03/2023] [Accepted: 10/08/2023] [Indexed: 10/14/2023]
Abstract
Vitellogenin (VTG), a biomarker for endocrine activity, is a mechanistic component of the regulatory assessment of potential endocrine-disrupting properties of chemicals. This review of VTG data is based on changes reported for 106 substances in standard fish species. High intra-study and inter-laboratory variability in VTG concentrations was confirmed, as well as discrepancies in interpretation of results based on large differences between fish in the dilution water versus solvent control, or due to the presence of outlier measurements. VTG responses in fish were ranked against predictions for estrogen receptor agonist activity and aromatase inhibition from bioactivity model output and ToxCast in vitro assay results, respectively. These endocrine mechanisms explained most of the VTG responses in the absence of systemic toxicity, the magnitude of the VTG response being proportional to the in vitro potency. Interpretation of the VTG data was sometimes confounded by an alternative endocrine mechanism of action. There was evidence for both false positive and negative responses for VTG synthesis, but overall, it was rare for substances without endocrine activity in vitro to cause a concentration-dependent VTG response in fish in the absence of systemic toxicity. To increase confidence in the VTG results, we recommend improvements in the VTG measurement methodologies and greater transparency in reporting of VTG data (including quality control criteria for assay performance). This review supports the application of New Approach Methodologies (NAMs) by demonstrating that endocrine activity in vitro from mammalian cell lines is predictive for in vivo VTG response in fish, suggesting that in vitro mechanistic data could be used more broadly in decision-making to help reduce animal testing.
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Affiliation(s)
- Rebecca J Brown
- wca, Brunel House, Volunteer Way, Faringdon, Oxfordshire SN7 7YR, UK.
| | - Grace H Panter
- wca, Brunel House, Volunteer Way, Faringdon, Oxfordshire SN7 7YR, UK
| | - Natalie Burden
- NC3Rs, Gibbs Building, 215 Euston Road, London NW1 2BE, UK
| | - Edward R Salinas
- BASF SE, Agricultural Solutions - Ecotoxicology, Speyerer Strasse 2, 67117 Limburgerhof, Germany; Bayer AG, R&D, Crop Science Division, Environmental Safety, Alfred-Nobel Strasse 50, 40789 Monheim am Rhein, Germany
| | - Lennart Weltje
- BASF SE, Agricultural Solutions - Ecotoxicology, Speyerer Strasse 2, 67117 Limburgerhof, Germany
| | - James R Wheeler
- Corteva Agriscience, Zuid-Oostsingel 24D, 4611 BB Bergen op Zoom, The Netherlands
| | - Yvonne Wolf
- Bayer AG, R&D, Crop Science Division, Environmental Safety, Alfred-Nobel Strasse 50, 40789 Monheim am Rhein, Germany
| | - Laurent Lagadic
- Bayer AG, R&D, Crop Science Division, Environmental Safety, Alfred-Nobel Strasse 50, 40789 Monheim am Rhein, Germany
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Zhu Q, Zhu S, Li Q, Wang Y, Zheng D, Chen C, Ruan N, Chen H, Yan H, Lin H, Ge RS. Methyl tert-butyl ether inhibits pubertal development of Leydig cells in male rats by inducing mitophagy and apoptosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 232:113282. [PMID: 35131586 DOI: 10.1016/j.ecoenv.2022.113282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/28/2022] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
Methyl tert-butyl ether (MTBE) is a widely used gasoline additive. It is considered an endocrine-disrupting chemical. Whether MTBE affects the development of Leydig cells in late puberty of males and its underlying mechanism remains unclear. Twenty-four male Sprague-Dawley rats (35 days old) were randomly allocated into four groups and were orally given MTBE (0, 300, 600, and 1200 mg/kg/day) from postnatal day (PND) 35-56. MTBE markedly reduced serum testosterone levels at 300 mg/kg and higher doses without altering the serum levels of luteinizing hormone and follicle-stimulating hormone. It mainly inhibited cell proliferation, induced mitochondrial autophagy and apoptosis, and indirectly stimulated Sertoli cells to secrete anti-Müllerian hormones, thereby significantly reducing the number of Leydig cells at 1200 mg/kg. MTBE also markedly down-regulated the expression of mature Leydig cell biomarker Cyp11a1 and Hsd3b1 and their proteins, while up-regulating the expression of immature Leydig cell biomarker Akr1c14 and its protein at 600 mg/kg and higher. MTBE significantly down-regulated the expression of cell cycle gene Ccnd1, antioxidant gene Gpx1, and anti-apoptotic gene Bcl2, while increasing pro-apoptotic gene Bax level at 1200 mg/kg. In vitro study further confirmed that MTBE can inhibit testosterone synthesis by inducing reactive oxygen species (ROS) generation, mitophagy, and apoptosis at 200 and 300 mM. In conclusion, exposure to MTBE compromises the development of Leydig cells in late puberty in male rats.
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Affiliation(s)
- Qiqi Zhu
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Shanshan Zhu
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Scientific Research, School of Optometry and Ophthalmology and The Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Qiyao Li
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yun Wang
- Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang 325027, China
| | - Dongxu Zheng
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Chunjiang Chen
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Naqi Ruan
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Haiqiong Chen
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Haoni Yan
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Han Lin
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
| | - Ren-Shan Ge
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
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5
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Horie Y, Takahashi C. Influence of salinity on physiological development and zinc toxicity in the marine medaka Oryzias melastigma. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1138-1149. [PMID: 34106375 DOI: 10.1007/s10646-021-02429-y] [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] [Accepted: 05/20/2021] [Indexed: 06/12/2023]
Abstract
To determine whether the marine medaka Oryzias melastigma is a suitable model organism for evaluating the effects of environmental chemicals on marine teleosts, we examined the effect of salinity on physiological development and zinc toxicity. Growth as measured by total body length was significantly lower in fresh water compared to brackish water. Reproductive success was also significantly reduced in fresh water, although we observed cells in the pituitary producing gonadotropins such as Gpa (common glycoprotein hormone α), Fshb (follicle stimulating hormone β), and Lhb (luteinizing hormone β) at all salinities. These results indicate that O. melastigma is adaptable to various salinities from fresh to seawater, and brackish water is best for physiological processes including growth performance and reproduction. When zinc was dissolved in saltwater, a white precipitate formed immediately, and the dissolved concentration decreased in the supernatant and increased at precipitate. We performed zinc toxicity tests on early life stage and adult stage in fresh water, brackish water, and seawater. Among adults, the lowest observed effect concentration for mortality in freshwater (15.3 mg/L) was lower than in brackish water (>48 mg/L) or seawater (>48 mg/L). Similarly, among embryos and larvae, the lowest observed effect concentration for mortality in freshwater (4.8 mg/L) was lower than in brackish water (48 mg/L) or seawater (48 mg/L). These results highlight the importance of using marine organisms to evaluate the ecological effects of marine pollutants.
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Affiliation(s)
- Yoshifumi Horie
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita, 010-0195, Japan.
- Research Center for Inland Sea (KURCIS), Kobe University, Fukaeminami, Higashinada, Kobe, 658-0022, Japan.
| | - Chiho Takahashi
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita, 010-0195, Japan
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6
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Endocrine disruptors in teleosts: Evaluating environmental risks and biomarkers. AQUACULTURE AND FISHERIES 2021. [DOI: 10.1016/j.aaf.2020.07.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Horie Y, Yamagishi T, Shintaku Y, Iguchi T, Tatarazako N. Effects of tributyltin on early life-stage, reproduction, and gonadal sex differentiation in Japanese medaka (Oryzias latipes). CHEMOSPHERE 2018; 203:418-425. [PMID: 29631114 DOI: 10.1016/j.chemosphere.2018.03.135] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/16/2018] [Accepted: 03/19/2018] [Indexed: 06/08/2023]
Abstract
Tributyltin, an organotin compound, was used worldwide as an antifouling agent in aquatic environments and there has been much concern about the toxicological and ecotoxicological properties of organotin compounds. Even though it has been prohibited worldwide, tributyltin is still detected at low concentrations in aquatic environments. Here we investigated the effects of tributyltin on the early life-stage, reproduction, and gonadal sex differentiation in Japanese medaka (Oryzias latipes). In adults, exposure to tributyltin at 3.82 μg/L suppressed fecundity and fertility and increased mortality. At 10.48 μg/L all medaka died by the sixth day of exposure. Exposure to tributyltin during early life-stages induced no significant differences in mortality or embryonic development, but growth was suppressed in groups exposed to 0.13 and 0.68 μg/L. Furthermore, there was no abnormal gonadal development in Japanese medaka exposed to tributyltin. These results provide evidence of the negative effects of tributyltin on reproduction in a teleost fish. Tributyltin did not affect gonadal sex differentiation in Japanese medaka, but fecundity and fertility were suppressed, although it is not clear whether this suppression resulted from the endocrine-disrupting action of tributyltin or its toxicity.
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Affiliation(s)
- Yoshifumi Horie
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan; Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Simoshinjo, Akita 010-0195, Japan
| | - Takahiro Yamagishi
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Yoko Shintaku
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Taisen Iguchi
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Norihisa Tatarazako
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan; Department of Science and Technology for Biological Resources and Environment, Graduate School of Agriculture, Ehime University, Tarumi 3-5-7, Matsuyama 790-8566, Japan.
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Horie Y, Watanabe H, Takanobu H, Shigemoto Y, Yamagishi T, Iguchi T, Tatarazako N. Effects of triphenyltin on reproduction in Japanese medaka (Oryzias latipes) across two generations. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 192:16-23. [PMID: 28910659 DOI: 10.1016/j.aquatox.2017.08.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 08/22/2017] [Accepted: 08/28/2017] [Indexed: 06/07/2023]
Abstract
Triphenyltin (TPT) is an organotin compound used in marine anti-fouling coatings to prevent the attachment and growth of marine organisms, and it has negative effects on aquatic organisms. TPT is still detected at low concentrations, although its use has been prohibited at least in the European Community and is restricted in Japan as well. Studies using Japanese medaka (Oryzias latipes) indicate that TPT has the potential to inhibit reproduction. Although TPT is detected in many aquatic ecosystems, the multi-generational impact of TPT remains unknown. We investigated the two-generational effects of TPT on Japanese medaka and examined the relationships of several such effects between the F0 and F1 generations. Suppression of fecundity was observed in both generations, and fertility and growth were inhibited in the F1 generation. Moreover, delayed hatching and lower hatchability were observed in F1 embryos. Importantly, the value of the lowest observed effect concentration (LOEC) for these influences in F1 was lower than that in F0: that is, the LOEC values of fecundity and mortality were 3.2μg/L in the F0 generation and 1.0μg/L in the F1 generation. Fertility was not affected by TPT in F0, whereas it was significantly suppressed in the 1.0μg/L-exposure group of the F1 generation. Our results provide the first evidence of the effects of TPT on reproduction in a teleost fish across two generations, highlighting the concern that TPT could affect reproduction and mortality at decreasing concentrations in temporally overlapping generations.
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Affiliation(s)
- Yoshifumi Horie
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Haruna Watanabe
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Hitomi Takanobu
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Yoshiko Shigemoto
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Takahiro Yamagishi
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Taisen Iguchi
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, and Department of Basic Biology, School of Life Science, Graduate University for Advanced Studies, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan; Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Norihisa Tatarazako
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
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Horie Y, Watanabe H, Takanobu H, Yagi A, Yamagishi T, Iguchi T, Tatarazako N. Development of anin vivoanti-androgenic activity detection assay using fenitrothion in Japanese medaka (Oryzias latipes). J Appl Toxicol 2016; 37:339-346. [DOI: 10.1002/jat.3365] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/04/2016] [Accepted: 06/13/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Yoshifumi Horie
- Center for Health and Environmental Risk Research; National Institute for Environmental Studies; Tsukuba Ibaraki Japan
| | - Haruna Watanabe
- Center for Health and Environmental Risk Research; National Institute for Environmental Studies; Tsukuba Ibaraki Japan
| | - Hitomi Takanobu
- Center for Health and Environmental Risk Research; National Institute for Environmental Studies; Tsukuba Ibaraki Japan
| | - Ayano Yagi
- Center for Health and Environmental Risk Research; National Institute for Environmental Studies; Tsukuba Ibaraki Japan
| | - Takahiro Yamagishi
- Center for Health and Environmental Risk Research; National Institute for Environmental Studies; Tsukuba Ibaraki Japan
| | - Taisen Iguchi
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, and Department of Basic Biology, School of Life Science; Graduate University for Advanced Studies (SOKENDAI); Okazaki Aichi Japan
- Nanobioscience; Yokohama City University; Yokohama Japan
| | - Norihisa Tatarazako
- Center for Health and Environmental Risk Research; National Institute for Environmental Studies; Tsukuba Ibaraki Japan
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