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Hoang AQ, Tue NM, Goto A, Karyu R, Tuyen LH, Viet PH, Matsukami H, Suzuki G, Takahashi S, Kunisue T. Bioaccessibility of halogenated flame retardants and organophosphate esters in settled dust: Influences of specific dust matrices from informal e-waste and end-of-life vehicle processing areas in Vietnam. Sci Total Environ 2024; 926:172045. [PMID: 38554968 DOI: 10.1016/j.scitotenv.2024.172045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/24/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Bioaccessibility of halogenated flame retardants (HFRs) and organophosphorus esters (OPEs) is necessarily investigated to provide more accurate risk assessment and information about absorption behavior of these pollutants. In this study, total and bioaccessible concentrations of HFRs (including legacy and alternative substances) and OPEs were determined in settled dust samples collected from Vietnamese e-waste and end-of-life vehicle (ELV) processing areas. Concentrations of both HFRs and OPEs were significantly higher in the e-waste dust than ELV dust. Bioavailability of HFRs and OPEs in dust was determined by using an in vitro assay with human-simulated digestive fluids, dialysis membrane, and Tenax® TA sorptive sink. Bioaccessibility of HFRs was markedly lower than that of OPEs, which could be largely due to higher hydrophobicity of HFRs compared to OPEs. Bioaccessibility of almost hydrophobic compounds were markedly lower in the e-waste dust (containing micronized plastic debris) than in the ELV dust (containing oily materials), suggesting the influence of specific dust matrices on pollutant bioaccessibility. Although the daily uptake doses of selected HFRs and OPEs from dust were markedly higher in the e-waste sites compared to the ELV sites, the direct exposure risk was not significant. Our results suggest that bioaccessibility can partly explain the differences between dust and uptake profiles, which may relate to accumulation profiles of HFRs and OPEs in human samples.
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Affiliation(s)
- Anh Quoc Hoang
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi 11000, Viet Nam
| | - Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan; Key Laboratory of Analytical Technology for Environmental Quality and Food Safety Control (KLATEFOS), University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi 11400, Viet Nam
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Ryogo Karyu
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Le Huu Tuyen
- University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi 11400, Viet Nam
| | - Pham Hung Viet
- Key Laboratory of Analytical Technology for Environmental Quality and Food Safety Control (KLATEFOS), University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi 11400, Viet Nam
| | - Hidenori Matsukami
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - Go Suzuki
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - Shin Takahashi
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan.
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2
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Zölzer F, Schneider T, Ainsbury E, Goto A, Liutsko L, O'Reilly G, Lochard J. Ethical and societal aspects of radiological protection for offspring and next generations. Int J Radiat Biol 2023:1-11. [PMID: 37947483 DOI: 10.1080/09553002.2023.2281523] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
PURPOSE Over the last decade or so, ethical and societal aspects of radiological protection have received increasing attention. This is also reflected in the publications of the International Commission on Radiological Protection (ICRP). The current paper aims at identifying relevant ethical and societal topics which should receive attention in the context of radiological protection for offspring and next generations. MATERIALS AND METHODS We present a non-comprehensive review of the subject, based on presentation made at an ICRP workshop in Budapest in 2022. We first discuss the ethical values promoted by ICRP, and the application of these values in cases of (potential) pre-conceptual and prenatal radiation exposures. We then consider experience gained after the Fukushima accident indicating particular societal concerns about the health effects of such exposures. RESULTS AND CONCLUSIONS Beneficence/non-maleficence, prudence, justice and dignity, the "core values" of the system of radiological protection have special roles to play when heritable and/or in utero effects are to be considered. Prudence, in particular, must be taken account of in view of the fact that solid scientific data in humans are largely lacking in this area, and it is necessary to rely on insights from animal experiments as well as theoretical considerations. As regards societal considerations, the perception of risk among (potentially) affected populations needs to be taken seriously. Accountability, transparency, and inclusivity, the "procedural values" promoted by ICRP for the practical implementation of the system of radiological protection play a central role in overcoming skepticism and creating trust. Stakeholder involvement should emphasize cooperation and dialogue, which allows for the joint evaluation of an exposure situation by experts and affected people.
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Affiliation(s)
- F Zölzer
- Faculty of Health and Social Sciences, University of South Bohemia in České Budějovice, Czech Republic
| | - T Schneider
- Nuclear Protection Evaluation Centre (CEPN), Fontenay-aux-Roses, France
| | | | - A Goto
- Center for Integrated Science and Humanities, Fukushima Medical University, Fukushima, Japan
| | - L Liutsko
- Institute for Primary Health Care Research Jordi Gol i Gurina (IDIAP Jordi Gol) & ISGlobal, Barcelona, Spain
| | | | - J Lochard
- Institute of Atomic Bomb Diseases, Nagasaki University, Nagasaki, Japan
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3
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Abe S, Asami S, Eizuka M, Futagi S, Gando A, Gando Y, Gima T, Goto A, Hachiya T, Hata K, Hayashida S, Hosokawa K, Ichimura K, Ieki S, Ikeda H, Inoue K, Ishidoshiro K, Kamei Y, Kawada N, Kishimoto Y, Koga M, Kurasawa M, Maemura N, Mitsui T, Miyake H, Nakahata T, Nakamura K, Nakamura K, Nakamura R, Ozaki H, Sakai T, Sambonsugi H, Shimizu I, Shirai J, Shiraishi K, Suzuki A, Suzuki Y, Takeuchi A, Tamae K, Ueshima K, Watanabe H, Yoshida Y, Obara S, Ichikawa AK, Chernyak D, Kozlov A, Nakamura KZ, Yoshida S, Takemoto Y, Umehara S, Fushimi K, Kotera K, Urano Y, Berger BE, Fujikawa BK, Learned JG, Maricic J, Axani SN, Smolsky J, Fu Z, Winslow LA, Efremenko Y, Karwowski HJ, Markoff DM, Tornow W, Dell'Oro S, O'Donnell T, Detwiler JA, Enomoto S, Decowski MP, Grant C, Li A, Song H. Search for the Majorana Nature of Neutrinos in the Inverted Mass Ordering Region with KamLAND-Zen. Phys Rev Lett 2023; 130:051801. [PMID: 36800472 DOI: 10.1103/physrevlett.130.051801] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/10/2022] [Accepted: 11/29/2022] [Indexed: 06/18/2023]
Abstract
The KamLAND-Zen experiment has provided stringent constraints on the neutrinoless double-beta (0νββ) decay half-life in ^{136}Xe using a xenon-loaded liquid scintillator. We report an improved search using an upgraded detector with almost double the amount of xenon and an ultralow radioactivity container, corresponding to an exposure of 970 kg yr of ^{136}Xe. These new data provide valuable insight into backgrounds, especially from cosmic muon spallation of xenon, and have required the use of novel background rejection techniques. We obtain a lower limit for the 0νββ decay half-life of T_{1/2}^{0ν}>2.3×10^{26} yr at 90% C.L., corresponding to upper limits on the effective Majorana neutrino mass of 36-156 meV using commonly adopted nuclear matrix element calculations.
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Affiliation(s)
- S Abe
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - S Asami
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - M Eizuka
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - S Futagi
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - A Gando
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Gando
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - T Gima
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - A Goto
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - T Hachiya
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Hata
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - S Hayashida
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Hosokawa
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Ichimura
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - S Ieki
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - H Ikeda
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Inoue
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - K Ishidoshiro
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Kamei
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - N Kawada
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Kishimoto
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - M Koga
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - M Kurasawa
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - N Maemura
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - T Mitsui
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - H Miyake
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - T Nakahata
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Nakamura
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Nakamura
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - R Nakamura
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - H Ozaki
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
- Graduate Program on Physics for the Universe, Tohoku University, Sendai 980-8578, Japan
| | - T Sakai
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - H Sambonsugi
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - I Shimizu
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - J Shirai
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Shiraishi
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - A Suzuki
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Suzuki
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - A Takeuchi
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Tamae
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Ueshima
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - H Watanabe
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Yoshida
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - S Obara
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - A K Ichikawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - D Chernyak
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - A Kozlov
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - K Z Nakamura
- Kyoto University, Department of Physics, Kyoto 606-8502, Japan
| | - S Yoshida
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Takemoto
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - S Umehara
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - K Fushimi
- Department of Physics, Tokushima University, Tokushima 770-8506, Japan
| | - K Kotera
- Graduate School of Integrated Arts and Sciences, Tokushima University, Tokushima 770-8502, Japan
| | - Y Urano
- Graduate School of Integrated Arts and Sciences, Tokushima University, Tokushima 770-8502, Japan
| | - B E Berger
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - B K Fujikawa
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J G Learned
- Department of Physics and Astronomy, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA
| | - J Maricic
- Department of Physics and Astronomy, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA
| | - S N Axani
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Smolsky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Z Fu
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - L A Winslow
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Efremenko
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - H J Karwowski
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA; Physics Departments at Duke University, Durham, North Carolina 27708, USA; North Carolina Central University, Durham, North Carolina 27707, USA; and The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - D M Markoff
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA; Physics Departments at Duke University, Durham, North Carolina 27708, USA; North Carolina Central University, Durham, North Carolina 27707, USA; and The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - W Tornow
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA; Physics Departments at Duke University, Durham, North Carolina 27708, USA; North Carolina Central University, Durham, North Carolina 27707, USA; and The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - S Dell'Oro
- Center for Neutrino Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - T O'Donnell
- Center for Neutrino Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - J A Detwiler
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - S Enomoto
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - M P Decowski
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Nikhef and the University of Amsterdam, Science Park, Amsterdam, Netherlands
| | - C Grant
- Boston University, Boston, Massachusetts 02215, USA
| | - A Li
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA; Physics Departments at Duke University, Durham, North Carolina 27708, USA; North Carolina Central University, Durham, North Carolina 27707, USA; and The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Boston University, Boston, Massachusetts 02215, USA
| | - H Song
- Boston University, Boston, Massachusetts 02215, USA
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4
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Taniguchi S, Sakamoto T, Imase R, Nonoue Y, Tsunematsu H, Goto A, Matsushita K, Ohmori S, Maeda H, Takeuchi Y, Ishii T, Yonemaru JI, Ogawa D. Prediction of heading date, culm length, and biomass from canopy-height-related parameters derived from time-series UAV observations of rice. Front Plant Sci 2022; 13:998803. [PMID: 36582650 PMCID: PMC9792801 DOI: 10.3389/fpls.2022.998803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Unmanned aerial vehicles (UAVs) are powerful tools for monitoring crops for high-throughput phenotyping. Time-series aerial photography of fields can record the whole process of crop growth. Canopy height (CH), which is vertical plant growth, has been used as an indicator for the evaluation of lodging tolerance and the prediction of biomass and yield. However, there have been few attempts to use UAV-derived time-series CH data for field testing of crop lines. Here we provide a novel framework for trait prediction using CH data in rice. We generated UAV-based digital surface models of crops to extract CH data of 30 Japanese rice cultivars in 2019, 2020, and 2021. CH-related parameters were calculated in a non-linear time-series model as an S-shaped plant growth curve. The maximum saturation CH value was the most important predictor for culm length. The time point at the maximum CH contributed to the prediction of days to heading, and was able to predict stem and leaf weight and aboveground weight, possibly reflecting the association of biomass with duration of vegetative growth. These results indicate that the CH-related parameters acquired by UAV can be useful as predictors of traits typically measured by hand.
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Affiliation(s)
- Shoji Taniguchi
- Research Center for Agricultural Information Technology, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Toshihiro Sakamoto
- Institute for Agro-Environmental Sciences, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Ryoji Imase
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Yasunori Nonoue
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Hiroshi Tsunematsu
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Akitoshi Goto
- Research Center for Agricultural Information Technology, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Kei Matsushita
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Sinnosuke Ohmori
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Hideo Maeda
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Yoshinobu Takeuchi
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Takuro Ishii
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Jun-ichi Yonemaru
- Research Center for Agricultural Information Technology, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
| | - Daisuke Ogawa
- Institute of Crop Science, National Agricultural and Food Research Organization (NARO), Tsukuba, Japan
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5
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Nakayama K, Tue NM, Fujioka N, Tokusumi H, Goto A, Uramaru N, Suzuki G. Determination of the relative potencies of brominated dioxins for risk assessment in aquatic environments using the early-life stage of Japanese medaka. Ecotoxicol Environ Saf 2022; 247:114227. [PMID: 36306615 DOI: 10.1016/j.ecoenv.2022.114227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/04/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
World Health Organization toxic equivalency factors (WHO-TEFs) are recommended for risk management of brominated dioxins in aquatic environments because limited information is available on their toxicity to fish. To validate this approach, we obtained the relative potencies of polybrominated dibenzo-p-dioxins and polybrominated dibenzofurans and mixed-halogenated furans (PXDF, X = Cl/Br) against 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) based on their toxicity to the early-life stage of Japanese medaka (Oryzias latipes). 2,3,7,8-substituted brominated dibenzofurans caused typical dioxin exposure effects, such as blue-sac disease. The TCDD-relative potency factors (REPs) of test substances were calculated based on the concentrations in water and eggs that caused 20% lethality on day 28 post-fertilization, and were in the order of: 2-chloro-3,7,8-tribromodibenzofuran (REPwater 3.3, REPegg 4.6) > 2,3,7,8-tetrabromodibenzofuran (0.85, 0.92) > 2,3,4,7,8-pentabromodibenzofuran (0.053, 0.55) > 1,2,3,7,8-pentabromodibenzofuran (0.0091, 0.19). The transfer rate from water to eggs was lower for pentabrominated furans than tetrabrominated congeners, and was expected to decrease with the log Kow of the test substance. Although the REPegg value can be used to compare the toxicity potential of brominated dioxins, REPwater may be more suitable for environmental risk assessment because the uptake potential of these compounds from water should be considered. This study is the first to report higher toxicity of a PXDF congener compared with TCDD in vivo, further investigations of the toxicity of mixed-halogenated dioxins and environmental behavior are necessary for environmental risk assessment.
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Affiliation(s)
- Kei Nakayama
- Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan.
| | - Nguyen Minh Tue
- Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan.
| | - Naoto Fujioka
- Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan.
| | - Hideaki Tokusumi
- Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan.
| | - Akitoshi Goto
- Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan.
| | - Naoto Uramaru
- Nihon Pharmaceutical University, Ina-machi, Kitaadachi-gun 362-0806, Japan.
| | - Go Suzuki
- Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba 305-8506, Japan.
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Hoang AQ, Karyu R, Tue NM, Goto A, Tuyen LH, Matsukami H, Suzuki G, Takahashi S, Viet PH, Kunisue T. Comprehensive characterization of halogenated flame retardants and organophosphate esters in settled dust from informal e-waste and end-of-life vehicle processing sites in Vietnam: Occurrence, source estimation, and risk assessment. Environ Pollut 2022; 310:119809. [PMID: 35931384 DOI: 10.1016/j.envpol.2022.119809] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/04/2022] [Accepted: 07/16/2022] [Indexed: 06/15/2023]
Abstract
Information about the co-occurrence of halogenated flame retardants (HFRs) and organophosphate esters (OPEs) in the environment of informal waste processing areas is still limited, especially in emerging and developing countries. In this study, OPEs and HFRs including polybrominated diphenyl ethers (PBDEs), novel brominated flame retardants (NBFRs), and chlorinated flame retardants (CFRs) were determined in settled dust from Vietnamese e-waste recycling (WR) and vehicle processing (VP) workshops. Pollutant concentrations decreased in the order: OPEs (median 1500; range 230-410,000 ng/g) ≈ PBDEs (1200; 58-250,000) > NBFRs (140; not detected - 250,000) > CFRs (13; 0.39-2200). HFR and OPE levels in the WR workshops for e-waste and obsolete plastic were significantly higher than in the VP workshops. Decabromodiphenyl ether and decabromodiphenyl ethane are major HFRs, accounting for 60 ± 26% and 25 ± 29% of total HFRs, respectively. Triphenyl phosphate, tris(2-chloroisopropyl) phosphate, and tris(1,3-dichloroisopropyl) phosphate dominated the OPE profiles, accounting for 30 ± 25%, 25 ± 16%, and 24 ± 18% of total OPEs, respectively. The OPE profiles differed between WR and VP dust samples, implying different usage patterns of these substances in polymer materials for electric/electronic appliance and automotive industries. Human health risk related to dust-bound HFRs and OPEs in the study areas was low.
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Affiliation(s)
- Anh Quoc Hoang
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, 11000, Viet Nam
| | - Ryogo Karyu
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan; Key Laboratory of Analytical Technology for Environmental Quality and Food Safety Control (KLATEFOS), University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi, 11400, Viet Nam
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan
| | - Le Huu Tuyen
- University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi, 11400, Viet Nam
| | - Hidenori Matsukami
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba, 305- 8506, Japan
| | - Go Suzuki
- Material Cycles Division, National Institute for Environmental Studies, Tsukuba, 305- 8506, Japan
| | - Shin Takahashi
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, 790-8566, Japan
| | - Pham Hung Viet
- Key Laboratory of Analytical Technology for Environmental Quality and Food Safety Control (KLATEFOS), University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi, 11400, Viet Nam
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan.
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7
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Onozawa E, Goto A, Oda H, Seki S, Sako T, Mori A. Comparison of the effects of two commercially available prescription diet regimens on the fecal microbiomes of client-owned healthy pet dogs. Pol J Vet Sci 2022; 25:93-101. [PMID: 35575869 DOI: 10.24425/pjvs.2022.140845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In the present study, we used next-generation sequencing to investigate the impacts of two commercially available prescription diet regimens on the fecal microbiomes of eleven client-owned healthy pet dogs. We tested an anallergenic diet on 6 dogs and a low-fat diet on 5 dogs. Before starting the study, each dog was fed a different commercial diet over 5 weeks. After collecting pre-diet fecal samples, the anallergenic or low-fat diet was administered for 5 weeks. We then collected fecal samples and compared the pre- and post-diet fecal microbiomes. In the dogs on the anallergenic diet, we found significantly decreased proportions of Bacteroides, Ruminococcaceae, and Fusobacteriaceae, belonging to the phyla Bacteroidetes, Firmicutes, and Fusobacteria, respectively. The proportion of the genus Streptococcus belonging to the phylum Firmicutes was significantly increased upon administering the anallergenic diet. In the dogs on the low-fat diet, although the phyla Actinobacteria and Bacteroidetes tended to increase (p=0.116) and decrease (p=0.147) relative to the pre-diet levels, respectively, there were no significant differences in the proportions of any phylum between the pre- and post-diet fecal microbiomes. The anallergenic diet induced a significantly lower diversity index value than that found in the pre-diet period. Principal coordinate analysis based on unweighted UniFrac distance matrices revealed separation between the pre- and post-diet microbiomes in the dogs on the anallergenic diet. These results suggest that, even in pet dogs kept indoors in different living environments, unification of the diet induces apparent changes in the fecal microbiome.
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Affiliation(s)
- E Onozawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - A Goto
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - H Oda
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - S Seki
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - T Sako
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - A Mori
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
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8
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Goto A, Kokabu S, Dusadeemeelap C, Kawaue H, Matsubara T, Tominaga K, Addison WN. Tongue Muscle for the Analysis of Head Muscle Regeneration Dynamics. J Dent Res 2022; 101:962-971. [PMID: 35193429 DOI: 10.1177/00220345221075966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Tongue muscle damage impairs speaking and eating, thereby degrading overall health and quality of life. Skeletal muscles of the body are diverse in embryonic origin, anatomic location, and gene expression profiles. Responses to disease, atrophy, aging, or drugs vary among different muscles. Currently, most muscle studies are focused on limb muscles and the tongue is neglected. The regenerative ability of tongue muscle remains unknown, and thus there is need for tongue muscle research models. Here, we present a comprehensive characterization of the spatiotemporal dynamics in a mouse model of tongue muscle regeneration and establish a method for the isolation of primary tongue-derived satellite cells. We compare and contrast our observations with the tibialis anterior (TA) limb muscle. Acute injury was induced by intramuscular injection of cardiotoxin, a cytolytic agent, and examined at multiple timepoints. Initially, necrotic myofibers with fragmented sarcoplasm became infiltrated with inflammatory cells. Concomitantly, satellite cells expanded rapidly. Seven days postinjury, regenerated myofibers with centralized nuclei appeared. Full regeneration, as well as an absence of fibrosis, was evident 21 d postinjury. Primary tongue-derived satellite cells were isolated by enzymatic separation of tongue epithelium from mesenchyme followed by magnetic-activated cell sorting. We observed that tongue displays an efficient regenerative response similar to TA but with slightly faster kinetics. In vitro, tongue-derived satellite cells differentiated robustly into mature myotubes with spontaneous contractile behavior and myogenic marker expression. Comparison of gene expression signatures between tongue and TA-derived satellite cells revealed differences in the expression of positional-identity genes, including the HOX family. In conclusion, we have established a model for tongue regeneration useful for investigations of orofacial muscle biology. Furthermore, we showed that tongue is a viable source of satellite cells with unique properties and inherited positional memory.
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Affiliation(s)
- A Goto
- Division of Molecular Signaling and Biochemistry, Kyushu Dental University, Kitakyushu, Fukuoka, Japan.,Division of Oral and Maxillofacial Surgery, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - S Kokabu
- Division of Molecular Signaling and Biochemistry, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - C Dusadeemeelap
- Division of Molecular Signaling and Biochemistry, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - H Kawaue
- Division of Molecular Signaling and Biochemistry, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - T Matsubara
- Division of Molecular Signaling and Biochemistry, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - K Tominaga
- Division of Oral and Maxillofacial Surgery, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - W N Addison
- Division of Molecular Signaling and Biochemistry, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
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9
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Ieda T, Hashimoto S, Tanabe K, Goto A, Kunisue T. Application of inert gas-mediated ionization for qualitative screening of chlorinated aromatics in house dust by comprehensive two-dimensional gas chromatography-high-resolution time-of-flight mass spectrometry. J Chromatogr A 2021; 1657:462571. [PMID: 34614469 DOI: 10.1016/j.chroma.2021.462571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 09/03/2021] [Accepted: 09/16/2021] [Indexed: 11/25/2022]
Abstract
The development of highly selective and sensitive analytical methods for the nontarget screening of persistent organic pollutants such as halogenated compounds in environmental samples is a challenging task. Soft ionization mass spectrometry has emerged as a powerful technique for obtaining essential molecular information, and it is expected to reveal compounds that remain hidden with conventional fragmentation techniques such as electron ionization (EI). In this study, a soft ionization method based on electron capture negative ionization using an inert gas was developed for the nontarget screening of chlorinated aromatics in environmental samples and was applied to comprehensive two-dimensional gas chromatography-high-resolution time-of-flight mass spectrometry (GC × GC-HRToFMS). In particular, argon (Ar) and helium (He) were evaluated as inert moderating gases, and were compared against the conventional methane (CH4). The optimal ionization conditions, including the flow rate and ion source temperature, were investigated based on the molecular ion intensities of highly chlorinated aromatics decachlorobiphenyl and octachlorodibenzofuran. Ar-mediated soft ionization provided the best sensitivity to molecular ions among the three gases at a low flow rate (0.1 mL min-1) and low ion source temperature, and more selective detection of molecular ions (i.e., less fragmentation) was obtained with the inert gases than with CH4. This method is also applicable to other chlorinated aromatics such as tetra- to nonachlorobiphenyls, tetra- to heptachlorinated dibenzofurans, pentachlorobenzene, and hexachlorobenzene. To demonstrate the applicability of the proposed method to a wide range of chlorinated aromatics in environmental samples, both Ar-mediated soft ionization and conventional EI were applied to GC × GC-HRToFMS for analysis of a crude extract of house dust. Soft ionization enabled the selective and sensitive detection of molecular ions for minor amounts of chlorinated aromatics, even in complex matrices. Furthermore, the extracted ion chromatograms of halide anions (Cl- or Br-) were useful for screening other chlorinated or brominated compounds in the environmental samples. The results suggest that combining information on halide anions obtained by soft ionization and the structural information provided by EI would constitute a powerful approach for the comprehensive identification of chlorinated aromatics.
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Affiliation(s)
- Teruyo Ieda
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
| | - Shunji Hashimoto
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Kiyoshi Tanabe
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama-shi, Ehime 790-8577, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama-shi, Ehime 790-8577, Japan
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Takeuchi K, Ogawa H, Kuramitsu N, Akaike K, Goto A, Aoki H, Lassar A, Suehara Y, Hara A, Matsumoto K, Akiyama H. Colchicine protects against cartilage degeneration by inhibiting MMP13 expression via PLC-γ1 phosphorylation. Osteoarthritis Cartilage 2021; 29:1564-1574. [PMID: 34425229 PMCID: PMC8542595 DOI: 10.1016/j.joca.2021.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 07/17/2021] [Accepted: 08/10/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Low molecular weight compounds that reduce the expression of MMP13 at the mRNA level might serve as disease-modifying osteoarthritis (OA) drugs (DMOADs). The objective of this study was to identify a candidate DMOAD that targets MMP13 expression. DESIGN High-throughput screening was performed to identify compounds that suppress inflammatory cytokine-induced MMP13 expression. Ingenuity pathway analysis (IPA) using isobaric tags for relative and absolute quantification (iTRAQ)-based proteomic analysis was conducted to identify signaling pathways related to cytokines. MMP13 expression in chondrocytes was evaluated through RT-qPCR and western blotting analyses. Additionally, 10-week-old mice were subjected to destabilization of the medial meniscus (DMM) surgery to induce OA and were sacrificed 12 weeks post-surgery for pathological examination. OA was evaluated using the OARSI scoring system. RESULTS Colchicine was identified as a DMOAD candidate as it inhibited inflammatory cytokine-induced MMP13 expression in vitro, and the colchicine-administered mice with DMM presented significantly lower OARSI scores (adjusted P: 0.0242, mean difference: 1.6, 95% confidence interval (CI) of difference: 0.1651-3.035) and significantly lower synovial membrane inflammation scores (adjusted P: 0.0243, mean difference: 0.6, 95% CI of difference: 0.06158-1.138) than mice with DMM. IPA further revealed that components of the Rho signaling pathways are regulated by cytokines and colchicine. IL-1β and TNF-α activate RAC1 and SRC signals, respectively, leading to the phosphorylation of PLC-γ1 and synergistic induction of MMP13 expression. Most notably, colchicine abrogates inflammatory cytokine-induced phosphorylation of PLC-γ1, leading to the induction of MMP13 expression. CONCLUSIONS Colchicine is a potential DMOAD candidate that inhibits MMP13 expression and consequent cartilage degradation by disrupting the SRC/RAC1-phospho-PLCγ1-Ca2+ signaling pathway.
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Affiliation(s)
- K Takeuchi
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan.
| | - N Kuramitsu
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - K Akaike
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - A Goto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Aoki
- Department of Tissue and Organ Development, Regeneration and Advanced Medical Science, Gifu Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - A Lassar
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Ave., Boston, MA, 02115, USA
| | - Y Suehara
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - A Hara
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - K Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
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11
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Chiba A, Onomi R, Hatate K, Moriyama T, Goto A, Yamagishi N. Peripartum changes in serum activities of three major alkaline phosphatase isoenzymes in Holstein dairy cows. Pol J Vet Sci 2021; 23:457-459. [PMID: 33006853 DOI: 10.24425/pjvs.2020.134691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This study investigated changes in serum levels of hepatic, bone, and intestinal alkaline phosphatase (ALP) isoenzymes (ALP2, ALP3, and ALP5, respectively) in Holstein cows around parturition. Tartrate-resistant acid phosphatase 5b (TRAP5b) activity and calcium (Ca) concen-trations were also measured. We analyzed blood samples from 11 late-pregnant heifers (primipa-rous group) and 13 multiparous (2-4 lactations; multiparous group) cows at 3 weeks (18-24 days prepartum; -3 weeks), 2 weeks (17-11 days prepartum; -2 weeks), and 1 week (10-4 days prepar-tum; -1 weeks) before parturition; the day of calving (within 12 h post-calving; day 0); and 5 days postpartum (5 days). ALP3 activity was significantly higher in the primiparous group than in the multiparous group, whereas the activities decreased significantly in both groups after 5 days. ALP2 and ALP5 activities did not change, whereas ALP2 activity was significantly higher in the primiparous group than in the multiparous group. TRAP5b activity was significantly higher in the primiparous group than in the multiparous group and showed a transient significant increase at day 0. Ca concentration significantly decreased at day 0 in both groups; the Ca level at day 0 was significantly higher in the primiparous group than in the multiparous group. These data show that ALP3 activity in serum may indicate a change in osteoblastic bone forma-tion after calving, but further study is needed to determine the clinical application for measuring ALP isoenzymes in bovine medicine.
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Affiliation(s)
- A Chiba
- United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan.,Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - R Onomi
- Graduate School of Veterinary Life Sciences and Agriculture, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - K Hatate
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - T Moriyama
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - A Goto
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan.,Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - N Yamagishi
- United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan.,Graduate School of Veterinary Life Sciences and Agriculture, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan.,Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
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12
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Goto A, Yumiya Y, Ueda K. Feedback assessment from the audience as part of health literacy training for health professionals: a case from Fukushima after the nuclear accident. Ann ICRP 2021; 50:167-173. [PMID: 34256641 DOI: 10.1177/01466453211010919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Following the accident at Fukushima Daiichi nuclear power plant in 2011, a series of health literacy training workshops for local health workers was developed and implemented. This study aimed to analyse who among the intended audience gained the greatest benefit from the training. Nine health workers attended a workshop consisting of classroom training and a follow-up feedback assessment of materials they created in the workshop. The materials were assessed by a total of 131 intended readers. Using Sakai's tool, those items asking readers to rate the accessibility of written information were used to compare the materials before and after revision. The total score for Sakai's measure showed a significant improvement, and the elderly and those without regular doctor visits were more likely to notice improvements after revision. Such health literacy training could serve as a model programme to prevent inequity in access to health information in the face of a regional health crisis.
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Affiliation(s)
- A Goto
- Centre for Integrated Science and Humanities, Fukushima Medical University, Hikarigaoka 1, Fukushima City, Fukushima 960-1295, Japan
| | - Y Yumiya
- Centre for Integrated Science and Humanities, Fukushima Medical University, Hikarigaoka 1, Fukushima City, Fukushima 960-1295, Japan
| | - K Ueda
- Division of Community Health and Research, Osaka Women's and Children's Hospital, Japan
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13
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Tue NM, Goto A, Fumoto M, Nakatsu S, Tanabe S, Kunisue T. Nontarget Screening of Organohalogen Compounds in the Liver of Wild Birds from Osaka, Japan: Specific Accumulation of Highly Chlorinated POP Homologues in Raptors. Environ Sci Technol 2021; 55:8691-8699. [PMID: 34100289 DOI: 10.1021/acs.est.1c00357] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nontarget screening studies have recently revealed the accumulation of typically unmonitored organohalogen compounds (OHCs) in various marine animals, but information for terrestrial food chains is still lacking. This study investigated the accumulation profiles of known and unknown OHCs in the liver of representative wild bird specimens from Osaka, Japan using nontarget analysis based on two-dimensional gas chromatography-time-of-flight mass spectrometry. A large number of unmonitored OHCs were identified, including anthropogenic contaminants and marine halogenated natural products (HNPs), and their accumulation profiles were considered to be influenced by terrestrial and brackish water-based diets. Anthropogenic OHCs were highly accumulated in terrestrial predator species (peregrine falcon, hawks, and black kite), and some unmonitored highly chlorinated contaminants reached the levels of microgram per gram lipid in the liver, i.e., C10-/C15-based chlordane related compounds (CHLs) and their epoxides, dichlorodiphenyldichloroethylene (DDE) homologues, and polychlorinated terphenyls (PCTs). In contrast, HNPs were accumulated at higher levels in piscivorous birds (gray heron and common cormorant). Considering the enrichment of the unmonitored C10-/C15-based CHLs, PCTs, and DDE homologues relative to structurally similar persistent organic pollutants (POPs) in high trophic-level species such as raptors, further studies are needed to elucidate their environmental levels, behavior in terrestrial food chains, and ecotoxicological impacts.
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Affiliation(s)
- Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Mitsuo Fumoto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Susumu Nakatsu
- Nakatsu Veterinary Surgery, 2-2-15 Shorinjichonishi, Sakai 590-0960, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
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14
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Ohba T, Goto A, Nakano H, Nollet KE, Murakami M, Koyama Y, Honda K, Yoshida K, Yumiya Y, Kuroda Y, Kumagai A, Ohira T, Tanigawa K. Development of an application tool to support returnees in Fukushima. Ann ICRP 2021; 50:187-193. [PMID: 34109845 DOI: 10.1177/01466453211006815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To promote radiation protection and health promotion among returning residents (returnees) in coastal areas of Fukushima, eHealth principles were used to develop a new application tool (app) that can record radiation exposure and health status while providing comprehensive support to returnees. Intended users are returnees and health and welfare workers. After assessing their needs, a flowchart and prototype for operational logic were created using commercially available software tools. Professional developers will focus on improving the user interface and ensuring data security. The finished app will be compatible with mobile telephones and tablets. Utility and ease of use are paramount to serve returnees of all ages effectively.
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Affiliation(s)
- T Ohba
- Fukushima Medical University, Japan
| | - A Goto
- Fukushima Medical University, Japan
| | - H Nakano
- Fukushima Medical University, Japan
| | | | | | - Y Koyama
- Fukushima Medical University, Japan
| | - K Honda
- Fukushima Medical University, Japan
| | - K Yoshida
- Fukushima Medical University, Japan.,Iryo Sosei University, Japan
| | - Y Yumiya
- Fukushima Medical University, Japan
| | - Y Kuroda
- Fukushima Medical University, Japan
| | - A Kumagai
- National Institutes for Quantum and Radiological Science and Technology, Japan
| | - T Ohira
- Fukushima Medical University, Japan
| | - K Tanigawa
- Futaba Medical Centre, Japan Corresponding author: Takashi Ohba, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan; e-mail:
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15
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Chiba A, Hatate K, Onomi R, Moriyama T, Goto A, Yamagishi N. Agarose gel electrophoresis pattern of serum alkaline phosphatase isoenzymes in Holstein cows during lactation. Pol J Vet Sci 2021; 23:317-319. [PMID: 32627994 DOI: 10.24425/pjvs.2020.133648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A recent study found that an agarose gel electrophoresis (AGE) method yielded two distinct major bands corresponding to the hepatic and bone ALP isoenzymes (ALP2 and ALP3, respec-tively) in bovine serum treated with protease and neuraminidase (PN-treatment), although there were concerns that the intestinal ALP isoenzyme (ALP5) often overlapped with ALP3 in human serum treated with neuraminidase. Because ALP5 was separated from ALP3 in bovine serum treated with protease alone (P-treatment), we used a modified method employing both P- and PN-treated bovine sera to measure the activities of the three ALP isoenzymes in 53 lacta-ting Holstein cows: 24 primiparous and 29 multiparous. Upon electrophoresis, 51 of 53 samples (96.2%) subjected to P-treatment yielded a distinct fraction corresponding to ALP5, as did the control serum. All PN-treated sera yielded a definite ALP2 fraction. The ALP3 fraction was calculated as the remainder after excluding ALP2 and ALP5. The activities of total ALP (t-ALP) and ALP3 in primiparous cows were higher than those in multiparous cows (p ⟨ 0.001) at early-to-peak [10-110 days in milk (DIM)] and mid (111-220 DIM) lactation. In the multi-parous cows, the ALP3 activity at late lactation (221-477 DIM) was significantly higher than that at early-to-peak lactation. Thus, the modified AGE method described here is able to discrimi-nate three fractions of ALP isoenzymes in the sera of lactating cows. The AGE pattern of circu-lating ALP isoenzymes will contribute to the understanding of the physiological bone metabolism status in lactating cows.
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Affiliation(s)
- A Chiba
- United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan.,Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - K Hatate
- United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan.,Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - R Onomi
- Graduate School of Veterinary Life Sciences and Agriculture, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - T Moriyama
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - A Goto
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
| | - N Yamagishi
- United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan.,Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan.,Graduate School of Veterinary Life Sciences and Agriculture, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8550, Japan
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Kuroda Y, Goto A, Terauchi H, Suzuki S. Change in sense of food safety associated with social connectedness and information sources-A 10-year longitudinal survey before and after the Fukushima nuclear power plant accident. Public Health 2021; 194:156-162. [PMID: 33945928 DOI: 10.1016/j.puhe.2021.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 02/08/2021] [Accepted: 03/04/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES This study analyzes the change in the sense of food safety over time, from 2 years before to 8 years after the Fukushima accident in 2011, and its association with social connectedness using cohort data, taking into account regional differences in Fukushima Prefecture. STUDY DESIGN Repeated cross-sectional data from Fukushima Prefectural Government from 2009 to 2018 were used. METHODS We randomly selected 1300 people every fiscal year (FY). The survey gathered data on age, gender, occupation, residential region, and the explanatory variables 'sense of social connectedness' and 'recovery-related information source' (information source). The prefecture was divided into three regions for the survey-Hamadori region, where the nuclear power plant is located, Nakadori region, where the air dose rate after the earthquake was high, and in Aizu, far from the nuclear power station but has suffered from harmful rumors. RESULTS Focusing on FY 2014, when the sense of safety first showed recovery, we performed a binominal logistic regression analysis with 'sense of safety' as the outcome and 'sense of social connectedness' and 'information source' as the explanatory variables. The sense of safety significantly decreased in all regions in 2011 relative to earlier years. The sense of food safety decreased markedly in Hamadori and Nakadori but started to improve 3 years after the earthquake and reached the pre-earthquake level in 2018. The effect sizes were larger in the Hamadori region and in Nakadori than in Aizu. In FY 2014, multivariate analysis found that a sense of food safety was significantly positively associated with a sense of social connectedness, whereas the use of information from newspapers and TV and word of mouth was negatively associated. CONCLUSION Although the recovery of a sense of food safety may take some time, a focus on social connectedness during recovery and scrutiny of information sources may facilitate recovery. Health communication has an important role when the provider sends information intelligibly and the recipient can distinguish good news from bad and link it to self-determination. It is necessary to improve literacy.
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Affiliation(s)
- Y Kuroda
- Center for Integrated Science and Humanities, Fukushima Medical University, 1 Hikarigaoka, Fukushima-city, Fukushima, 960-1295, Japan; Research Department, Fukushima Prefectural Centre for Environmental Creation, Japan.
| | - A Goto
- Center for Integrated Science and Humanities, Fukushima Medical University, 1 Hikarigaoka, Fukushima-city, Fukushima, 960-1295, Japan
| | - H Terauchi
- Research Department, Fukushima Prefectural Centre for Environmental Creation, Japan
| | - S Suzuki
- Ken-poku Development Bureau, Fukushima Prefectural Goverment, Japan
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Kunisue T, Goto A, Sunouchi T, Egashira K, Ochiai M, Isobe T, Tajima Y, Yamada TK, Tanabe S. Anthropogenic and natural organohalogen compounds in melon-headed whales (Peponocephala electra) stranded along the Japanese coastal waters: Temporal trend analysis using archived samples in the environmental specimen bank (es-BANK). Chemosphere 2021; 269:129401. [PMID: 33385672 DOI: 10.1016/j.chemosphere.2020.129401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/17/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
The present study determined recent accumulation levels of polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane and its metabolites (DDTs), hexachlorocyclohexane isomers (HCHs), chlordane compounds (CHLs), hexachlorobenzene (HCB), polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDDs), polychlorinated diphenyl ethers (PCDEs), methoxylated-PBDEs (MeO-PBDEs) and 2,3,3',4,4',5,5'-heptachloro-1'-methyl-1,2'-bipyrrole (Q1) in the blubber of melon-headed whales (Peponocephala electra) stranded along the Japanese coastal waters in 2015 and examined temporal trends of these organohalogen compound (OHC) levels by analyzing blubber samples of this species archived in the environmental specimen bank which were collected in 1982, 2001, 2002, 2006, 2010 and 2011. The median concentrations in melon-headed whales stranded recently were in the order of DDTs ≈ PCBs > HBCDDs > Q1 > CHLs > MeO-PBDEs > PBDEs > HCB > HCHs > PCDEs, indicating that considerable amounts of HBCDDs, in addition to DDTs and PCBs, have been transported to tropical and subtropical waters of the open ocean and pelagic whale species might be exposed to relatively high levels of these OHCs. Temporal trend analyses of OHC levels in the blubber of melon-headed whales revealed significant decrease for anthropogenic OCs such as DDTs, PCBs, HCB, HCHs and PCDEs, and significant increase for CHLs, PBDEs, HBCDDs, MeO-PBDEs and Q1 since 1982. Besides, the analyses from 2001 to 2015 showed no decreasing trends (unchanged) for some PCB congeners, p,p'-DDE, cis- and trans-nonachlors, Q1, BDE-47, -100 and -154, and significantly increasing trends for α-HBCDD and 6MeO-BDE47, suggesting their chronic exposure for this pelagic whale species.
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Affiliation(s)
- Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, 790-8577, Japan.
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, 790-8577, Japan
| | - Tomoya Sunouchi
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, 790-8577, Japan
| | - Kana Egashira
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, 790-8577, Japan
| | - Mari Ochiai
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, 790-8577, Japan
| | - Tomohiko Isobe
- Center for Environmental Health Sciences, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Japan
| | - Yuko Tajima
- Department of Zoology, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, 305-0005, Japan
| | - Tadasu K Yamada
- Department of Zoology, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, 305-0005, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, 790-8577, Japan
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Ito T, Kinoshita I, Tahara D, Goto A, Tojima S, Sideleva VG, Kupchinsky AB, Awata S. Fertilization modes drive the evolution of sperm traits in Baikal sculpins. J Zool (1987) 2021. [DOI: 10.1111/jzo.12867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- T. Ito
- Department of Biology and Geosciences Graduate School of Science Osaka City University Osaka Japan
| | - I. Kinoshita
- Usa Marine Biological InstituteKochi University Kochi Japan
| | - D. Tahara
- Research Center for Marine Bioresources Fukui Prefectural University Fukui Japan
| | - A. Goto
- Department of Science of Environmental Education Hokkaido University of Education Hokkaido Japan
| | - S. Tojima
- Usa Marine Biological InstituteKochi University Kochi Japan
| | - V. G. Sideleva
- Zoological InstituteThe Russian Academy of Sciences Saint Petersburg Russia
| | - A. B. Kupchinsky
- Siberian Branch Baikal MuseumIrkutsk Scientific CenterRussian Academy of Sciences Listvyanka Russia
| | - S. Awata
- Department of Biology and Geosciences Graduate School of Science Osaka City University Osaka Japan
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Kojima Y, Fujimori T, Goto A, Shiota K, Kunisue T, Takaoka M. Bromination of Carbon and Formation of PBDD/Fs by Copper Bromide in Oxidative Thermal Process. J Hazard Mater 2021; 403:123878. [PMID: 33264949 DOI: 10.1016/j.jhazmat.2020.123878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/12/2020] [Accepted: 08/29/2020] [Indexed: 06/12/2023]
Abstract
Brominated aromatic compounds are unintentionally generated during various thermal processes, including municipal solid waste incineration, electric-waste open burning, and secondary copper smelting. Copper (Cu) plays an important role in the formation of brominated aromatic compounds. In the present study, the thermochemical behaviors of Cu and Br in model samples, including copper bromide (CuBr2) and activated carbon, were studied using in situ X-ray absorption near-edge structure (XANES) and thermogravimetry. Quantification of polybrominated dibenzo-p-dioxins/furans (PBDD/Fs) was also conducted by gas chromatograph-high resolution mass spectrometer. Three key reactions were identified: (i) the reduction of CuBr2 to CuBr (room temperature to 300 °C), (ii) the generation of Br bonded with aromatic carbon (150-350 °C), and (iii) the oxidation of copper (>350 °C). Maximum amounts of PBDD/Fs were found in residual solid phase after heating at 300 °C. The analytical results indicated the direct bromination of aromatic carbon by the debromination of copper bromides (I, II) and that CuBr and CuO acted as catalysts in the oxidation of the carbon matrix. The bromination mechanisms revealed in this study are essential to the de novo formation of PBDD/Fs and other brominated aromatic compounds.
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Affiliation(s)
- Yusuke Kojima
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto 615-8540, Japan
| | - Takashi Fujimori
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto 615-8540, Japan; Department of Global Ecology, Graduate School of Global Environmental Studies, Japan.
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Kenji Shiota
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto 615-8540, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Masaki Takaoka
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto 615-8540, Japan; Department of Global Ecology, Graduate School of Global Environmental Studies, Japan
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Tashiro Y, Goto A, Kunisue T, Tanabe S. Contamination of habu (Protobothrops flavoviridis) in Okinawa, Japan by persistent organochlorine chemicals. Environ Sci Pollut Res Int 2021; 28:1018-1028. [PMID: 32829428 DOI: 10.1007/s11356-020-10510-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 08/12/2020] [Indexed: 06/11/2023]
Abstract
Persistent organochlorine chemicals (OCs), including chlordane compounds (CHLs), DDTs, PCBs, and chlorinated dioxins and related compounds (DRCs), were examined in the adipose tissue and liver from 33 specimens of habu (Protobothrops flavoviridis), a species of venomous pit viper endemic to the Japanese Southwest Islands. The median concentrations of CHLs, DDTs, and PCBs in adipose tissue of 22 habus collected from an urban area were 4400 ng g-1 lipid weight (lw), 610 ng g-1 lw, and 1600 ng g-1 lw, respectively. Their DDT and PCB concentrations were higher in comparison with the specimens from a rural area. Liver of 10 specimens from the urban area were subjected to DRCs analysis, and PCDDs, PCDFs, and DL-PCBs were detected with median values of 1300, 350, and 150,000 pg g-1 lw, respectively. Among PCDD/F congeners, octa-CDD was detected at the highest concentrations in seven liver samples, but considerable concentrations of penta- and hexa-CDD/Fs were found in two samples. Relatively higher concentrations of PCB, DDTs, and PCDD/Fs were found in habus collected within 1 km of the boundary of military facilities, suggesting that OCs from some unknown sources of these OCs inside and/or around some of the facilities accumulated in habus.
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Affiliation(s)
- Yutaka Tashiro
- School of International Studies, Meio University, 1220-1 Biimata, Nago, Okinawa, 905-8585, Japan.
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo, Matsuyama, Ehime, 790-8577, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo, Matsuyama, Ehime, 790-8577, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo, Matsuyama, Ehime, 790-8577, Japan
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Sudo G, Takagi H, Nakahara S, Goto A, Hinoda Y, Nakase H. Gastrointestinal: Abdominal aortic aneurysm caused symptoms mimicking superior mesenteric artery syndrome. J Gastroenterol Hepatol 2021; 36:43. [PMID: 32627232 DOI: 10.1111/jgh.15149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/10/2020] [Indexed: 12/09/2022]
Affiliation(s)
- G Sudo
- Department of Gastroenterology and Hepatology, Sapporo Teishinkai Hospital, Sapporo, Japan.,Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - H Takagi
- Department of Gastroenterology and Hepatology, Sapporo Teishinkai Hospital, Sapporo, Japan
| | - S Nakahara
- Department of Gastroenterology and Hepatology, Sapporo Teishinkai Hospital, Sapporo, Japan
| | - A Goto
- Department of Gastroenterology and Hepatology, Sapporo Teishinkai Hospital, Sapporo, Japan
| | - Y Hinoda
- Department of Gastroenterology and Hepatology, Sapporo Teishinkai Hospital, Sapporo, Japan
| | - H Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
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Mukai Y, Goto A, Tashiro Y, Tanabe S, Kunisue T. Coastal biomonitoring survey on persistent organic pollutants using oysters (Saccostrea mordax) from Okinawa, Japan: Geographical distribution and polystyrene foam as a potential source of hexabromocyclododecanes. Sci Total Environ 2020; 739:140049. [PMID: 32758951 DOI: 10.1016/j.scitotenv.2020.140049] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/15/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
The present study determined contamination levels of POPs, such as polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane and its metabolites (DDTs), chlordane compounds (CHLs), polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecanes (HBCDs), in oysters (Saccostrea mordax) collected throughout the seacoast of Okinawa, Japan and their geographic distribution. PCBs, DDTs, CHLs, PBDEs and HBCDs were detected in almost all the oyster samples analyzed and higher concentrations of PCBs, DDTs and CHLs were found in oysters from southwestern populated areas. On the other hand, HBCDs in oysters showed similar levels throughout Okinawa and the highest concentration in a northern rural site with less human and industrial activities, although oyster concentrations of PBDEs were relatively lower. When POPs in expanded polystyrene (EPS) buoys and polystyrene foam debris floated and drifted on coastal seawater were analyzed, extremely high concentrations of HBCDs were detected in some of these EPS buoys and polystyrene foam debris but other POPs were below the limit of detection in all the samples. To evaluate the specific exposure route of HBCDs for oysters, we further analyzed HBCD diastereomers, and PCB congeners by way of comparison, in seawater and sediment samples collected at an urban site and a rural site and estimated their biota (oyster)-sediment accumulation factors (BSAF) and bioaccumulation factors (BAF). Interestingly, the highest log BAF values were found for α-HBCD despite its lower log Kow than those of γ-HBCD and PCB congeners, although log BSAF values for HBCDs were lower than those for PCBs. Considering that α-HBCD was detected in a few polystyrene foam samples as the predominant diastereomer, oysters inhabiting the coastal region of Okinawa might be frequently exposed to micronized polystyrene foam particles containing HBCDs.
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Affiliation(s)
- Yukino Mukai
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan
| | - Yutaka Tashiro
- Meio University, 1220-1 Bimata, Nago, Okinawa 905-8585, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan.
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Goto A, Tue NM, Isobe T, Takahashi S, Tanabe S, Kunisue T. Nontarget and Target Screening of Organohalogen Compounds in Mussels and Sediment from Hiroshima Bay, Japan: Occurrence of Novel Bioaccumulative Substances. Environ Sci Technol 2020; 54:5480-5488. [PMID: 32160746 DOI: 10.1021/acs.est.9b06998] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Recent screening surveys have shown the presence of unknown halogenated compounds in the marine environment at comparable levels to persistent organic pollutants (POPs). However, their exposure levels and profiles in marine organisms and bioaccumulative potentials remain unclear. The present study performed nontarget/target screening of organohalogen compounds (OHCs) in mussel and sediment samples collected from Hiroshima Bay, Japan, in 2012 and 2018 by using integrated analyses of two-dimensional gas chromatography-high resolution time-of-flight mass spectrometry (GC×GC-HRToFMS) and magnetic sector GC-HRMS. Nontarget analysis by GC×GC-HRToFMS revealed the detection of approximately 60 OHCs including unknown mixed halogenated compounds (UHC-Br3-5Cl) with molecular formulae of C9H6Br3ClO, C9H5Br4ClO, and C9H4Br5ClO in the mussel. Interestingly, UHC-Br3-5Cl concentrations in the mussel samples, which were semi-quantified by GC-HRMS, were comparable to or higher than those of POPs at all the locations surveyed, and their geographical distribution patterns differed from those of other OHCs. These results suggest that UHC-Br3-5Cl are ubiquitous in coastal waters of Hiroshima Bay and derived from a specific source(s). The biota-sediment accumulation factors (BSAFs) of UHC-Br3-5Cl, estimated for a paired sample set of mussel (ng/g lw) and sediment (ng/g TOC), were 1 order of magnitude higher than those for POPs with similar log Kow values, indicating their high bioaccumulative potential.
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Affiliation(s)
- Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Tomohiko Isobe
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies (NIES), 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Shin Takahashi
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
- Center of Advanced Technology for the Environment, Agricultural Faculty, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
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Cota R, Goto A, Dias L. Transoperative mandibular angle fracture from third molar extraction, case report. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dias L, Ribeiro K, Cota R, Menezes F, Goto A. Comminuted fracture approach in mandibular FPI. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Cota R, Goto A. Mandibular angle fracture with presence of third molar included: Muay Thai professional fighter. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gonçalves L, Palm I, Menezes F, Goto A. Orthognathic surgery with alteration of the occlusal plane aiming at esthetic benefit: case report. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dias L, Ribeiro K, Cota R, Menezes F, Goto A. Anterior subapical osteotomy in mandible. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cota R, Goto A. Oral myiasis in a patient with special needs, case report. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Henderson K, L.Dias, Goto A, Menezes F, Cota R. Rapid maxillary expansion with supported bone palatal distractor - case report. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Cota R, Goto A. Surgical treatment for dentofacial deformities: class III patient with mandibular laterodeviation and anterior open bite. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Henderson K, Dias L, Goto A, Menezes F, Cota R. Complex fractures of the midface with submental intubation - case report. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tue NM, Matsushita T, Goto A, Itai T, Asante KA, Obiri S, Mohammed S, Tanabe S, Kunisue T. Complex Mixtures of Brominated/Chlorinated Diphenyl Ethers and Dibenzofurans in Soils from the Agbogbloshie e-Waste Site (Ghana): Occurrence, Formation, and Exposure Implications. Environ Sci Technol 2019; 53:3010-3017. [PMID: 30793891 DOI: 10.1021/acs.est.8b06929] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The distribution and toxic equivalents (TEQs) of brominated and chlorinated dibenzo- p-dioxins/dibenzofurans (PBDD/Fs and PCDD/Fs) in soils from Agbogbloshie e-waste site (Ghana) were investigated. The composition of brominated/chlorinated dibenzofurans (PXDFs) and diphenyl ethers (PBDEs, PCDEs, and PXDEs) was examined using two-dimensional gas chromatography-time-of-flight mass spectrometry to elucidate possible formation pathways of dioxins from e-waste recycling. The highest concentrations of PCDD/Fs and PBDD/Fs were found, respectively, in the open burning (1.3-380 ng/g dry weight) and dismantling areas (11-1000 ng/g dry weight) and were comparable to the highest reported for informal e-waste sites. PXDFs and PXDEs were detected at up to the range of hundreds of nanograms per gram. The homologue profiles suggest that PXDFs were formed mainly from PBDFs through successive Br-to-Cl exchange. However, monobromo-PCDFs were also derived from de-novo-generated PCDFs in open burning areas. PBDFs contributed similar or higher TEQs (7.9-5400 pg/g dry weight) compared with PCDD/Fs (6.8-5200 pg/g dry weight), whereas PXDFs were also substantial TEQ contributors in open burning areas. The high TEQs of PBDFs in the dismantling area (120-5200 pg/g dry weight) indicate the need to consider brominated dioxins besides chlorinated dioxins in future studies on health implications for e-waste workers and local residents.
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Affiliation(s)
- Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES) , Ehime University , 2-5 Bunkyo-cho , Matsuyama 790-8577 , Japan
| | - Takafumi Matsushita
- Center for Marine Environmental Studies (CMES) , Ehime University , 2-5 Bunkyo-cho , Matsuyama 790-8577 , Japan
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES) , Ehime University , 2-5 Bunkyo-cho , Matsuyama 790-8577 , Japan
| | - Takaaki Itai
- Center for Marine Environmental Studies (CMES) , Ehime University , 2-5 Bunkyo-cho , Matsuyama 790-8577 , Japan
| | - Kwadwo Ansong Asante
- Center for Marine Environmental Studies (CMES) , Ehime University , 2-5 Bunkyo-cho , Matsuyama 790-8577 , Japan
- CSIR Water Research Institute , P.O. Box AH 38, Achimota, Accra , Ghana
| | - Samuel Obiri
- CSIR Water Research Institute , P.O. Box AH 38, Achimota, Accra , Ghana
| | - Saada Mohammed
- CSIR Water Research Institute , P.O. Box AH 38, Achimota, Accra , Ghana
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES) , Ehime University , 2-5 Bunkyo-cho , Matsuyama 790-8577 , Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES) , Ehime University , 2-5 Bunkyo-cho , Matsuyama 790-8577 , Japan
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Goto A, Noda M, Goto M, Yasuda K, Mizoue T, Yamaji T, Sawada N, Iwasaki M, Inoue M, Tsugane S. Predictive performance of a genetic risk score using 11 susceptibility alleles for the incidence of Type 2 diabetes in a general Japanese population: a nested case-control study. Diabet Med 2018; 35:602-611. [PMID: 29444352 DOI: 10.1111/dme.13602] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/09/2018] [Indexed: 01/05/2023]
Abstract
AIMS To assess the predictive ability of a genetic risk score for the incidence of Type 2 diabetes in a general Japanese population. METHODS This prospective case-control study, nested within a Japan Public Health Centre-based prospective study, included 466 participants with incident Type 2 diabetes over a 5-year period (cases) and 1361 control participants, as well as 1463 participants with existing diabetes and 1463 control participants. Eleven susceptibility single nucleotide polymorphisms, identified through genome-wide association studies and replicated in Japanese populations, were analysed. RESULTS Most single nucleotide polymorphism loci showed directionally consistent associations with diabetes. From the combined samples, one single nucleotide polymorphism (rs2206734 at CDKAL1) reached a genome-wide significance level (odds ratio 1.28, 95% CI 1.18-1.40; P = 1.8 × 10-8 ). Three single nucleotide polymorphisms (rs2206734 in CDKAL1, rs2383208 in CDKN2A/B, and rs2237892 in KCNQ1) were nominally significantly associated with incident diabetes. Compared with the lowest quintile of the total number of risk alleles, the highest quintile had a higher odds of incident diabetes (odds ratio 2.34, 95% CI 1.59-3.46) after adjusting for conventional risk factors such as age, sex and BMI. The addition to the conventional risk factor-based model of a genetic risk score using the 11 single nucleotide polymorphisms significantly improved predictive performance; the c-statistic increased by 0.021, net reclassification improved by 6.2%, and integrated discrimination improved by 0.003. CONCLUSIONS Our prospective findings suggest that the addition of a genetic risk score may provide modest but significant incremental predictive performance beyond that of the conventional risk factor-based model without biochemical markers.
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Affiliation(s)
- A Goto
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - M Noda
- Department of Endocrinology and Diabetes, Saitama Medical University, Saitama
| | - M Goto
- Department of Diabetes and Endocrinology, JCHO Tokyo Yamate Medical Centre, Tokyo
| | - K Yasuda
- Department of Metabolic Disorder, Diabetes Research Centre, National Centre for Global Health and Medicine, Tokyo, Japan
| | - T Mizoue
- Department of Epidemiology and Prevention, National Centre for Global Health and Medicine, Tokyo, Japan
| | - T Yamaji
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - N Sawada
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - M Iwasaki
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - M Inoue
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - S Tsugane
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
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Ogata H, Tokuyama K, Nagasaka S, Ando A, Kusaka I, Sato N, Goto A, Ishibashi S, Kiyono K, Struzik Z, Yamamoto Y. Long-range Correlated Glucose Fluctuations in Diabetes. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1625411] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Summary
Objectives
: Our objective is to investigate diabetes- related alteration of glucose control in diurnal fluctuations in normal daily life by detrended fluctuation analysis (DFA).
Methods
: The fluctuations of glucose of 12 non-diabetic subjects and 15 diabetic patients were measured using a continuous glucose monitoring system (CGMS) over a period of one day. The glucose data was calculated by the DFA method, which is capable of revealing the presence of long-range correlations in time series with inherent non-stationarity.
Results
: Compared with the non-diabetic subjects, the mean glucose level and the standard deviation are significantly higher in the diabetic group.The DFA exponent α is calculated, and glucose time series are searched for the presence of negatively (0.5 < α <1.5) or positively (1.5 < α) correlated fluctuations. A crossover phenomenon, i.e. a change in the level of correlations, is observed in the non-diabetic subjects at about two hours; the net effects of glucose flux/reflux causing temporal changes in glucose concentration are negatively correlated in a “long-range" (> two hours) regime. However, for diabetic patients, the DFA exponent α = 1.65 ± 0.30, and in the same regime positively correlated fluctuations are observed, suggesting that the net effects of the flux and reflux persist for many hours.
Conclusions
: Such long-range positive correlation in glucose homeostasis may reflect pathogenic mechanisms of diabetes, i.e., the lack of the tight control in blood glucose regulation. Using modern time series analysis methods such as DFA, continuous evaluation of glucose dynamics could promote better diagnoses and prognoses of diabetes and a better understanding of the fundamental mechanism of glucose dysregulation in diabetes.
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Goto A, Tue NM, Someya M, Isobe T, Takahashi S, Tanabe S, Kunisue T. Spatio-temporal trends of polybrominated dibenzo-p-dioxins and dibenzofurans in archived sediments from Tokyo Bay, Japan. Sci Total Environ 2017; 599-600:340-347. [PMID: 28478363 DOI: 10.1016/j.scitotenv.2017.04.166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/21/2017] [Accepted: 04/21/2017] [Indexed: 06/07/2023]
Abstract
The present study examined the occurrence and potential sources of mono- to octa-brominated dibenzo-p-dioxins/dibenzofurans (Mo-OBDD/Fs) in Tokyo Bay, Japan, using surface sediments and 210Pb-dated sediment cores (covering the period 1895-2000) collected in 2002. The results showed a clear difference in the spatio-temporal trend between PBDFs and PBDDs. The spatial distribution of PBDF concentrations in the surface sediments showed a decreasing trend from the head to the mouth of the bay, which was similar to that of polybrominated diphenyl ethers (PBDEs) reported previously for the same sediment samples. In the sediment cores, PBDF and PBDE concentrations increased drastically after the 1960s and reached the highest levels in the late 1990s. In addition, a significant positive correlation was observed between the concentrations of their predominant congeners, 1,2,3,4,6,7,8-HpBDF and BDE-209. These results indicate that main contamination sources of PBDFs were technical PBDE formulations, especially DecaBDE. In contrast, total PBDDs in the surface sediments were rather uniform in the whole area of the bay. Furthermore, in the sediment cores, PBDD levels showed marginal fluctuation over the past century, with the predominance of 2,7-/2,8-DiBDDs and 1,3,7-/1,3,8-TrBDDs in all the sediment layers. It is noteworthy that these PBDD congeners were also found in the sediment layers corresponding to the pre-industrial era, supporting their natural formation in the coastal environment.
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Affiliation(s)
- Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Masayuki Someya
- Tokyo Metropolitan Research Institute for Environmental Protection, 1-7-5 Shinsuna Koto, Tokyo 136-0075, Japan
| | - Tomohiko Isobe
- Integrated Health Risk Assessment Section, National Institute for Environmental Studies (NIES), 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Shin Takahashi
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan; Center of Advanced Technology for the Environment, Agricultural Faculty, Ehime University, 3-5-7 Tarumi, Matsuyama, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan.
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Goto A, Tue NM, Someya M, Isobe T, Takahashi S, Tanabe S, Kunisue T. Occurrence of Natural Mixed Halogenated Dibenzo-p-Dioxins: Specific Distribution and Profiles in Mussels from Seto Inland Sea, Japan. Environ Sci Technol 2017; 51:11771-11779. [PMID: 28925692 DOI: 10.1021/acs.est.7b03738] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In addition to unintentional formation of polychlorinated (PCDD/Fs), polybrominated (PBDD/Fs), and mixed halogenated (PXDD/Fs) dibenzo-p-dioxins/dibenzofurans during industrial activities, recent studies have shown that several PBDD and PXDD congeners can be produced by marine algal species from the coastal environment. However, multiple exposure status of anthropogenic and naturally derived dioxins in marine organisms remains unclear. The present study examined the occurrence, geographical distribution, and potential sources of PCDD/Fs, PBDD/Fs, and PXDD/Fs using mussels and brown algae collected in 2012 from Seto Inland Sea, Japan. The results showed the widespread occurrence of not only PCDD/Fs but also PBDDs and PXDDs in Seto Inland Sea. The geographical distribution pattern of PBDDs was similar to that of PXDDs, which were obviously different from that of PCDDs and PCDFs, and a significant positive correlation was observed between the levels of their predominant congeners, i.e., 1,3,7-/1,3,8-TrBDDs and DiBMoCDDs. Interestingly, potential precursors of 1,3,7-/1,3,8-TrBDDs and DiBMoCDDs, hydroxylated tetrabrominated diphenyl ethers (6-HO-BDE-47 and 2'-HO-BDE-68) and their mixed halogenated analogue (HO-TrBMoCDE), were also identified in the mussel and brown alga samples collected at the same site, by comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC × GC-ToFMS) analyses. It is noteworthy that residue levels of 1,3,7-/1,3,8-TrBDDs and DiBMoCDDs in the mussel were 30 times higher than those in the brown alga, suggesting the bioaccumulation of these natural dioxins.
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Affiliation(s)
- Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University , 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES), Ehime University , 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Masayuki Someya
- Tokyo Metropolitan Research Institute for Environmental Protection , 1-7-5 Shinsuna, Koto-ku, Tokyo 136-0075, Japan
| | - Tomohiko Isobe
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies (NIES) , 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Shin Takahashi
- Center for Marine Environmental Studies (CMES), Ehime University , 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
- Center of Advanced Technology for the Environment, Agricultural Faculty, Ehime University , 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University , 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University , 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
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Rai H, Yokoyama S, Satoh-Nagasawa N, Furukawa J, Nomi T, Ito Y, Fujimura S, Takahashi H, Suzuki R, Yousra ELM, Goto A, Fuji S, Nakamura SI, Shinano T, Nagasawa N, Wabiko H, Hattori H. Cesium Uptake by Rice Roots Largely Depends Upon a Single Gene, HAK1, Which Encodes a Potassium Transporter. Plant Cell Physiol 2017; 58:1486-1493. [PMID: 28922748 DOI: 10.1093/pcp/pcx094] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 07/05/2017] [Indexed: 05/27/2023]
Abstract
Incidents at the Fukushima and Chernobyl nuclear power stations have resulted in widespread environmental contamination by radioactive nuclides. Among them, 137cesium has a 30 year half-life, and its persistence in soil raises serious food security issues. It is therefore important to prevent plants, especially crop plants, from absorbing radiocesium. In Arabidopsis thaliana, cesium ions are transported into root cells by several different potassium transporters such as high-affinity K+ transporter 5 (AtHAK5). Therefore, the cesium uptake pathway is thought to be highly redundant, making it difficult to develop plants with low cesium uptake. Here, we isolated rice mutants with low cesium uptake and reveal that the Oryza sativa potassium transporter OsHAK1, which is expressed on the surfaces of roots, is the main route of cesium influx into rice plants, especially in low potassium conditions. During hydroponic cultivation with low to normal potassium concentrations (0-206 µM: the normal potassium level in soil), cesium influx in OsHAK1-knockout lines was no greater than one-eighth that in the wild type. In field experiments, knockout lines of O. sativa HAK1 (OsHAK1) showed dramatically reduced cesium concentrations in grains and shoots, but their potassium uptake was not greatly affected and their grain yields were similar to that of the wild type. Our results demonstrate that, in rice roots, potassium transport systems other than OsHAK1 make little or no contribution to cesium uptake. These results show that low cesium uptake rice lines can be developed for cultivation in radiocesium-contaminated areas.
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Affiliation(s)
- Hiroki Rai
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Saki Yokoyama
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Namiko Satoh-Nagasawa
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Jun Furukawa
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai, Tsukuba 305-8572, Japan
- Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, Tennodai, Tsukuba 305-8577, Japan
| | - Takiko Nomi
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Yasuka Ito
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Shigeto Fujimura
- Tohoku Agricultural Research Center, NARO Agricultural Radiation Research Center 50 Harajukuminami, Arai, Fukushima, 960-2156, Japan
| | - Hidekazu Takahashi
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Ryuichiro Suzuki
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - ELMannai Yousra
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Akitoshi Goto
- Institute of Crop Science, NARO Rice Breeding Division, 2-1-2, Kannondai, Tsukuba 305-8518, Japan
| | - Shinichi Fuji
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Shin-Ichi Nakamura
- Department of Bioscience, Faculty of Life Science, Tokyo University of Agriculture, 1-1-1, Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan
| | - Takuro Shinano
- Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, Tennodai, Tsukuba 305-8577, Japan
| | - Nobuhiro Nagasawa
- Department of Agribusiness, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Hiroetsu Wabiko
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Hiroyuki Hattori
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
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Rai H, Yokoyama S, Satoh-Nagasawa N, Furukawa J, Nomi T, Ito Y, Fujimura S, Takahashi H, Suzuki R, Yousra ELM, Goto A, Fuji S, Nakamura SI, Shinano T, Nagasawa N, Wabiko H, Hattori H. Cesium Uptake by Rice Roots Largely Depends Upon a Single Gene, HAK1, Which Encodes a Potassium Transporter. Plant Cell Physiol 2017; 58:2041. [PMID: 28922748 DOI: 10.1093/pcp/pcx137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 07/05/2017] [Indexed: 05/22/2023]
Abstract
Incidents at the Fukushima and Chernobyl nuclear power stations have resulted in widespread environmental contamination by radioactive nuclides. Among them, 137cesium has a 30 year half-life, and its persistence in soil raises serious food security issues. It is therefore important to prevent plants, especially crop plants, from absorbing radiocesium. In Arabidopsis thaliana, cesium ions are transported into root cells by several different potassium transporters such as high-affinity K+ transporter 5 (AtHAK5). Therefore, the cesium uptake pathway is thought to be highly redundant, making it difficult to develop plants with low cesium uptake. Here, we isolated rice mutants with low cesium uptake and reveal that the Oryza sativa potassium transporter OsHAK1, which is expressed on the surfaces of roots, is the main route of cesium influx into rice plants, especially in low potassium conditions. During hydroponic cultivation with low to normal potassium concentrations (0-206 µM: the normal potassium level in soil), cesium influx in OsHAK1-knockout lines was no greater than one-eighth that in the wild type. In field experiments, knockout lines of O. sativa HAK1 (OsHAK1) showed dramatically reduced cesium concentrations in grains and shoots, but their potassium uptake was not greatly affected and their grain yields were similar to that of the wild type. Our results demonstrate that, in rice roots, potassium transport systems other than OsHAK1 make little or no contribution to cesium uptake. These results show that low cesium uptake rice lines can be developed for cultivation in radiocesium-contaminated areas.
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Affiliation(s)
- Hiroki Rai
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Saki Yokoyama
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Namiko Satoh-Nagasawa
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Jun Furukawa
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai, Tsukuba 305-8572, Japan
- Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, Tennodai, Tsukuba 305-8577, Japan
| | - Takiko Nomi
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Yasuka Ito
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Shigeto Fujimura
- Tohoku Agricultural Research Center, NARO Agricultural Radiation Research Center 50 Harajukuminami, Arai, Fukushima, 960-2156, Japan
| | - Hidekazu Takahashi
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Ryuichiro Suzuki
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - ELMannai Yousra
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Akitoshi Goto
- Institute of Crop Science, NARO Rice Breeding Division, 2-1-2, Kannondai, Tsukuba 305-8518, Japan
| | - Shinichi Fuji
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Shin-Ichi Nakamura
- Department of Bioscience, Faculty of Life Science, Tokyo University of Agriculture, 1-1-1, Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan
| | - Takuro Shinano
- Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, Tennodai, Tsukuba 305-8577, Japan
| | - Nobuhiro Nagasawa
- Department of Agribusiness, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Hiroetsu Wabiko
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
| | - Hiroyuki Hattori
- Department of Biological Production, Faculty of Bio-resource Sciences, Akita Prefectural University, Kaidobata-Nishi 241-438, Shimoshinjo Nakano, Akita 010-0915, Japan
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Kashimura M, Goto A, Nollet KE, Ohto H, Yasumura S, Konno K. Who returns and becomes a regular blood donor? Analysis of a donor database in Fukushima, Japan. ACTA ACUST UNITED AC 2017. [DOI: 10.1111/voxs.12363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Kashimura
- Fukushima Blood Center; Japanese Red Cross Society; Fukushima Japan
- Department of Blood Transfusion and Transplantation Immunology; Fukushima Medical University School of Medicine; Fukushima Japan
| | - A. Goto
- Center for Integrated Science and Humanities; Fukushima Medical University; Fukushima Japan
- Department of Public Health; Fukushima Medical University School of Medicine; Fukushima Japan
| | - K. E. Nollet
- Department of Blood Transfusion and Transplantation Immunology; Fukushima Medical University School of Medicine; Fukushima Japan
| | - H. Ohto
- Department of Blood Transfusion and Transplantation Immunology; Fukushima Medical University School of Medicine; Fukushima Japan
| | - S. Yasumura
- Department of Public Health; Fukushima Medical University School of Medicine; Fukushima Japan
| | - K. Konno
- Fukushima Blood Center; Japanese Red Cross Society; Fukushima Japan
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Nagaoka I, Sasahara H, Tabuchi H, Shigemune A, Matsushita K, Maeda H, Goto A, Fukuoka S, Ando T, Miura K. Improvement of seed shattering and dormancy in Oryza sativa L. 'Hokuriku 193' based on genetic information. Breed Sci 2017; 67:173-180. [PMID: 28744170 PMCID: PMC5515305 DOI: 10.1270/jsbbs.16128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 12/23/2016] [Indexed: 06/07/2023]
Abstract
In this study, we investigated the genetic basis of seed shattering and dormancy in Hokuriku 193 and bred an NIL improved these traits. Analysis of an F3 population from Hokuriku 193 × Koshihikari revealed a general correspondence between seed shattering and genotypes at the qSH1 locus, suggesting a strong influence of this locus on the seed shattering in Hokuriku 193. An F2 population from [ms-bo] Nekken 2 × Hokuriku 193 was also analyzed to identify quantitative trait loci (QTLs) for seed dormancy as measured by germination rate in the first December and March after seed harvest. The results revealed a concurrence QTLs of on chromosomes 1, 3, and 6 (qSDo1, qSDo3, qSDo6). In particular, qSDo1 and qSDo6 were considered regions worthy of active modification because they were QTL regions that promoted seed dormancy when carrying Hokuriku 193 genome regions around. SSDo_NIL, a near isogenic line (NIL) derived from Hokuriku 193 by introgressing Nekken 2 alleles only at the qSH1 locus and qSDo1, did not shatter, and its germination rate was significantly higher than that of Hokuriku 193. Yield performance was similar between SSDo_NIL and Hokuriku 193, suggesting that improvement of seed shattering and dormancy does not affect yield.
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Affiliation(s)
- Ichiro Nagaoka
- Central Region Agricultural Research Center, NARO,
1-2-1 Inada, Joetsu, Niigata 943-0193,
Japan
| | - Hideki Sasahara
- Central Region Agricultural Research Center, NARO,
1-2-1 Inada, Joetsu, Niigata 943-0193,
Japan
| | - Hiroaki Tabuchi
- Kyushu Okinawa Agricultural Research Center, NARO,
6651-2 Yokoichicho, Miyakonojo, Miyazaki 885-0091,
Japan
| | - Akiko Shigemune
- Western Region Agricultural Research Center, NARO,
6-12-1 Nishi-fukatsucho, Fukuyama, Hiroshima 721-8514,
Japan
| | - Kei Matsushita
- Central Region Agricultural Research Center, NARO,
1-2-1 Inada, Joetsu, Niigata 943-0193,
Japan
| | - Hideo Maeda
- Central Region Agricultural Research Center, NARO,
1-2-1 Inada, Joetsu, Niigata 943-0193,
Japan
| | - Akitoshi Goto
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Shuichi Fukuoka
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Tsuyu Ando
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
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Ishikawa S, Hayashi S, Abe T, Igura M, Kuramata M, Tanikawa H, Iino M, Saito T, Ono Y, Ishikawa T, Fujimura S, Goto A, Takagi H. Low-cesium rice: mutation in OsSOS2 reduces radiocesium in rice grains. Sci Rep 2017; 7:2432. [PMID: 28546542 PMCID: PMC5445092 DOI: 10.1038/s41598-017-02243-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 04/10/2017] [Indexed: 11/08/2022] Open
Abstract
In Japan, radiocesium contamination in foods has become of great concern and it is a primary issue to reduce grain radiocesium concentration in rice (Oryza sativa L.). Here, we report a low-cesium rice mutant 1 (lcs1) with the radiocesium concentration in grain about half that in the wild-type cultivar. Genetic analyses revealed that a mutation in OsSOS2, which encodes a serine/threonine-protein kinase required for the salt overly sensitive (SOS) pathway in plants, is responsible for the decreased cesium (Cs) concentrations in lcs1. Physiological analyses showed that Cs+ uptake by lcs1 roots was significantly decreased under low-potassium (K+) conditions in the presence of sodium (Na+) (low K+/Na+). The transcript levels of several K+ and Na+ transporter genes, such as OsHAK1, OsHAK5, OsAKT1, and OsHKT2;1 were significantly down-regulated in lcs1 grown at low K+/Na+. The decreased Cs+ uptake in lcs1 might be closely related to the lower expression of these genes due to the K+/Na+ imbalance in the lcs1 roots caused by the OsSOS2 mutation. Since the lcs1 plant had no significant negative effects on agronomic traits when grown in radiocesium-contaminated paddy fields, this mutant could be used directly in agriculture for reducing radiocesium in rice grains.
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Affiliation(s)
- Satoru Ishikawa
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, 305-8604, Japan.
| | - Shimpei Hayashi
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, 305-8604, Japan
- Institute of Agrobiological Sciences, NARO, Tsukuba, 305-8604, Japan
| | - Tadashi Abe
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, 305-8604, Japan
| | - Masato Igura
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, 305-8604, Japan
| | - Masato Kuramata
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, 305-8604, Japan
| | - Hachidai Tanikawa
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, 305-8604, Japan
| | - Manaka Iino
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, 305-8604, Japan
| | - Takashi Saito
- Hama Agricultural Regeneration Research Centre, Fukushima Agricultural Technology Centre, Minamisoma, 975-0007, Japan
| | - Yuji Ono
- Fruit Tree Research Centre, Fukushima Agricultural Technology Centre, Fukushima, 960-0231, Japan
| | - Tetsuya Ishikawa
- Tohoku Agricultural Research Center, NARO, Fukushima, 960-2156, Japan
| | - Shigeto Fujimura
- Tohoku Agricultural Research Center, NARO, Fukushima, 960-2156, Japan
| | - Akitoshi Goto
- Institute of Crop Science, NARO, Tsukuba, 305-8518, Japan
| | - Hiroki Takagi
- Iwate Biotechnology Research Center, Kitakami, 024-0003, Japan
- Ishikawa Prefectural University, Ishikawa, 921-8836, Japan
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Nagaoka I, Sasahara H, Tabuchi H, Shigemune A, Matsushita K, Maeda H, Goto A, Fukuoka S, Ando T, Miura K. Quantitative trait loci analysis of blast resistance in Oryza sativa L. 'Hokuriku 193'. Breed Sci 2017; 67:159-164. [PMID: 28588393 PMCID: PMC5445966 DOI: 10.1270/jsbbs.16099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/10/2016] [Indexed: 06/07/2023]
Abstract
To investigate the genetic background responsible for blast resistance in Oryza sativa L. 'Hokuriku 193', QTL analysis was conducted using the F3 lines from the cross [ms-bo] Nekken 2 × Hokuriku 193 that were artificially infected with rice blast fungus (Magnaporthe grisea). QTLs were detected on chromosomes 1, 4, 6 and 12 that correlated with greater blast resistance in the Hokuriku 193-type lines. Notably, the QTL on chromosome 12 had a major effect and localized to the same region where Pi20(t), a broad-spectrum blast resistance gene, is positioned, suggesting strongly that the blast resistance of Hokuriku 193 was controlled by Pi20(t). Also, QTL analysis of the lines found to have no Pi20(t) detected two QTLs on chromosome 4 (qBR4-1 and qBR4-2) and one QTL on chromosome 6 (qBR6), of which qBR4-2 and qBR6 correlated with higher percentages of resistant plants in the Hokuriku 193-type lines. The blast susceptibility of BR_NIL (a NIL of Hokuriku 193 from which Pi20(t) was eliminated) was greater than that of Hokuriku 193, suggesting that elimination of Pi20(t) may markedly increase blast susceptibility. The disease severity of BR_NIL was mild, which might be the effect of qBR4-2 and/or qBR6.
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Affiliation(s)
- Ichiro Nagaoka
- Central Region Agricultural Research Center, NARO,
1-2-1 Inada, Joetsu, Niigata 943-0193,
Japan
| | - Hideki Sasahara
- Central Region Agricultural Research Center, NARO,
1-2-1 Inada, Joetsu, Niigata 943-0193,
Japan
| | - Hiroaki Tabuchi
- Kyushu Okinawa Agricultural Research Center, NARO,
6651-2 Yokoichicho, Miyakonojo, Miyazaki 885-0091,
Japan
| | - Akiko Shigemune
- Western Region Agricultural Research Center, NARO,
6-12-1 Nishi-fukatsucho, Fukuyama, Hiroshima 721-8514,
Japan
| | - Kei Matsushita
- Central Region Agricultural Research Center, NARO,
1-2-1 Inada, Joetsu, Niigata 943-0193,
Japan
| | - Hideo Maeda
- Central Region Agricultural Research Center, NARO,
1-2-1 Inada, Joetsu, Niigata 943-0193,
Japan
| | - Akitoshi Goto
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Shuichi Fukuoka
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Tsuyu Ando
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
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Goto A. Thinking, talking, and working with professional community workers after the Fukushima nuclear accident. Ann ICRP 2016; 45:37-40. [PMID: 27630160 DOI: 10.1177/0146645316666494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This article examines postdisaster public health activities (focusing primarily on parenting support) through collaboration between universities and local government, and reports on the support provided to public health nurses, who are the gatekeepers of community health. For a year after the Fukushima disaster, discussions were held on the short- and long-term measures for responding to the concerns of parents, who face difficulty interpreting risks. Child health checkup data and mothers' counselling sessions with public health nurses were analysed to gather evidence to reinforce the health system over the long term. As the results of the analysis showed a need for the development of a system for communicating health information in ways that are accessible to residents, a health literacy training programme was developed and implemented for public health nurses in Fukushima Prefecture.
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Affiliation(s)
- A Goto
- Centre for Integrated Science and Humanities, Fukushima Medical University, 1 Hikariga-oka, Fukushima Prefecture, Japan
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Goto A, Moriya Y, Mandai T, Wakabayashi T, Tsukamoto T, Tagawa Y, Kondo T, Asahi S. Disposition of the Highly Fat Distributed Compound 1-(4-Methoxyphenyl)-4-(2,2,4,6,7-Pentamethyl -2,3-Dihydro-1-Benzofuran-5-yl)Piperazine (TAK-357) in Rats and Dogs. Drug Res (Stuttg) 2016; 67:38-45. [PMID: 27728931 DOI: 10.1055/s-0042-117624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The non-clinical pharmacokinetics (PK) of TAK-357, a highly lipophilic (clogP>6) potential agent for the amelioration of Alzheimer's disease, was investigated in rats and dogs. A long half-life (t1/2) in plasma was observed in animals and a low total body clearance with high distribution volume was consistent with the long t1/2. The absorption, distribution, metabolism and excretion (ADME) studies using radiolabeled TAK-357 revealed that the total radioactivity was highly distributed to the adipose tissues and sustained with high concentration for over 4 weeks after oral administration. The metabolite analysis also revealed that the main component in the plasma and adipose tissues was unchanged TAK-357. The major elimination route of absorbed TAK-357 was suggested to be by metabolism. An ADME study indicated that the adipose tissue is the main depot of remaining TAK-357 in the body and slow release from the adipose tissues contributes to the long t1/2. The PK of highly lipophilic compounds have a tendency to be affected by body weight changes especially changes in the adipose tissues. Therefore, it is considered that the relationship between the plasma levels of TAK-357 and the body weight should be evaluated carefully during the clinical trials.
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Affiliation(s)
- A Goto
- Drug Metabolism and Pharmacokinetics Research Laboratories, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Y Moriya
- Drug Metabolism and Pharmacokinetics Research Laboratories, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - T Mandai
- Drug Metabolism and Pharmacokinetics Research Laboratories, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - T Wakabayashi
- Central Nervous System Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - T Tsukamoto
- Central Nervous System Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Y Tagawa
- Drug Metabolism and Pharmacokinetics Research Laboratories, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - T Kondo
- Drug Metabolism and Pharmacokinetics Research Laboratories, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - S Asahi
- Drug Metabolism and Pharmacokinetics Research Laboratories, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
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Hayashino Y, Suzuki H, Yamazaki K, Goto A, Izumi K, Noda M. A cluster randomized trial on the effect of a multifaceted intervention improved the technical quality of diabetes care by primary care physicians: The Japan Diabetes Outcome Intervention Trial-2 (J-DOIT2). Diabet Med 2016; 33:599-608. [PMID: 26331280 PMCID: PMC5057414 DOI: 10.1111/dme.12949] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/27/2015] [Indexed: 12/25/2022]
Abstract
AIMS To evaluate the effect of multifaceted interventions using the Achievable Benchmark of Care (ABC) method for improving the technical quality of diabetes care in primary care settings. METHODS We conducted a 1-year cluster randomized controlled trial in 22 regions divided into an intervention group (IG) or control group (CG). Physicians in the IG received a monthly report of their care quality, with the top 10% quality of diabetes care scores for all physicians being the achievable benchmark. The change in quality-of-care scores between the IG and CG during follow-up was analysed using a generalized linear model considering clustering. RESULTS A total of 2199 patients were included. Their mean (sd) age was 56.5 ± 5.9 years and the mean (sd) HbA1c level was 56.4 ± 13.3 mmol/mol (7.4 ± 1.2%). The quality-of-care score in the CG changed from 50.2%-point at baseline to 51%-point at 12 months, whereas the IG score changed from 49.9%-point to 69.6%-point, with statistically significant differences between the two groups during follow-up [the effect of intervention was 19.0%-point (95% confidence interval 16.7%- to 21.3%-point; P < 0.001)]. CONCLUSIONS Multifaceted intervention, measuring quality-of-care indicators and providing feedback regarding the quality of diabetes care to physicians with ABC, was effective for improving the technical quality of care in patients with Type 2 diabetes in primary care settings. ( TRIAL REGISTRATION umin.ac.jp/ctr as UMIN000002186).
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Affiliation(s)
- Y Hayashino
- Department of Endocrinology, Tenri Hospital, Nara, Japan
| | - H Suzuki
- Japan Community Health Care Organization Takaoka Fushiki Hospital, Takaoka, Japan
| | | | - A Goto
- Department of Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - K Izumi
- Department of Diabetes and Metabolic Medicine, Center Hospital, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Noda
- Department of Diabetes Research, National Center for Global Health and Medicine, Tokyo, Japan
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Iida T, Adachi T, Nakagaki S, Yabana T, Goto A, Kondo Y, Watanabe Y, Kasai K. EDUCATION AND IMAGING. Gastrointestinal: Needle tract implantation after endoscopic ultrasound-guided fine-needle aspiration of a pancreatic adenocarcinoma. J Gastroenterol Hepatol 2016; 31:285. [PMID: 26510538 DOI: 10.1111/jgh.13209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 10/16/2015] [Indexed: 12/29/2022]
Affiliation(s)
- T Iida
- Department of Gastroenterology, Otaru General Hospital, Otaru, Japan.
| | - T Adachi
- Department of Gastroenterology, Otaru General Hospital, Otaru, Japan
| | - S Nakagaki
- Department of Gastroenterology, Otaru General Hospital, Otaru, Japan
| | - T Yabana
- Department of Gastroenterology, Otaru General Hospital, Otaru, Japan
| | - A Goto
- Department of Gastroenterology, Otaru General Hospital, Otaru, Japan
| | - Y Kondo
- Department of Gastroenterology, Otaru General Hospital, Otaru, Japan
| | - Y Watanabe
- Department of Surgery, Otaru General Hospital, Otaru, Japan
| | - K Kasai
- Department of Diagnostic Pathology, Otaru General Hospital, Otaru, Japan
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Sako T, Yamaguchi A, Sato K, Goto A, Iwai T, Nayuki T, Nemoto K, Kayama T, Takeuchi T. Development of C⁶⁺ laser ion source and RFQ linac for carbon ion radiotherapy. Rev Sci Instrum 2016; 87:02C109. [PMID: 26932119 DOI: 10.1063/1.4935975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A prototype C(6+) injector using a laser ion source has been developed for a compact synchrotron dedicated to carbon ion radiotherapy. The injector consists of a laser ion source and a 4-vane radio-frequency quadrupole (RFQ) linac. Ion beams are extracted from plasma and directly injected into the RFQ. A solenoid guides the low-energy beams into the RFQ. The RFQ is designed to accelerate high-intensity pulsed beams. A structure of monolithic vanes and cavities is adopted to reduce its power consumption. In beam acceleration tests, a solenoidal magnetic field set between the laser ion source and the RFQ helped increase both the peak currents before and after the RFQ by a factor of 4.
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Affiliation(s)
- T Sako
- Toshiba Corporation, Yokohama 235-8522, Japan
| | - A Yamaguchi
- Toshiba Corporation, Yokohama 235-8522, Japan
| | - K Sato
- Toshiba Corporation, Yokohama 235-8522, Japan
| | - A Goto
- Cancer Research Center, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - T Iwai
- Cancer Research Center, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - T Nayuki
- Cancer Research Center, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - K Nemoto
- Cancer Research Center, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - T Kayama
- Cancer Research Center, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - T Takeuchi
- Accelerator Engineering Corporation, Chiba 263-0043, Japan
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Fujimori T, Itai T, Goto A, Asante KA, Otsuka M, Takahashi S, Tanabe S. Interplay of metals and bromine with dioxin-related compounds concentrated in e-waste open burning soil from Agbogbloshie in Accra, Ghana. Environ Pollut 2016; 209:155-63. [PMID: 26686056 DOI: 10.1016/j.envpol.2015.11.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 11/12/2015] [Accepted: 11/19/2015] [Indexed: 05/25/2023]
Abstract
Open burning of electronic waste (e-waste) releases various metals and organohalogen compounds in the environment. Here we investigated the interplay of metals (Cu, Pb, Zn, Fe, Co, and Sr) and bromine (Br) in the formation of dioxin-related compounds (DRCs), including polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs), as well as non-regulated DRCs such as polybrominated dibenzo-p-dioxins/furans (PBDD/Fs) and their monobrominated PCDD/Fs in soils sampled from open burning e-waste sites at Agbogbloshie in Accra, Ghana. The predominant DRCs were PBDFs, PCDFs, PCDDs, and DL-PCBs. Statistical analyzes, X-ray absorption spectroscopy, and the PCDF/PCDD ratio suggested possible formation paths of PCDD/Fs and DL-PCBs by catalytic behaviors of copper chlorides (CuCl, CuCl2, and Cu2(OH)3Cl) and thermal breakdown of polyvinyl chloride. Predominant formation of brominated furans may be derived from electron transfer from intermediates of PBDE to copper, Cu(II) → Cu(I). Lead chloride also contributed to generate DRCs and may become highly bioaccessible through the open burning of e-waste. The main zinc species (ZnCl2 and ZnS) suggested a possible relationship to generate DRCs and specific zinc source such as tire burning. Cu, Pb, Zn, and Br contained in various e-wastes, wires/cables, plastics, and tires strongly influenced generation of many DRCs.
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Affiliation(s)
- Takashi Fujimori
- Department of Global Ecology, Graduate School of Global Environmental Studies, Kyoto University, Katsura, Nisikyo-ku, Kyoto, 615-8540, Japan; Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto, 615-8540, Japan
| | - Takaaki Itai
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan.
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan
| | - Kwadwo A Asante
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan; CSIR Water Research Institute, PO Box AH 38, Achimota, Accra, Ghana
| | - Masanari Otsuka
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan; Ehime Prefectural Institute of Public Health and Environmental Science, 8-234 Sanban-cho, Matsuyama 790-0003, Japan
| | - Shin Takahashi
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan; Department of Environmental Conservation, Ehime University, Matsuyama 790-8577, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, Bunkyo-cho 2-5, Matsuyama, Ehime 790-8577, Japan
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50
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Tue NM, Goto A, Takahashi S, Itai T, Asante KA, Kunisue T, Tanabe S. Release of chlorinated, brominated and mixed halogenated dioxin-related compounds to soils from open burning of e-waste in Agbogbloshie (Accra, Ghana). J Hazard Mater 2016; 302:151-157. [PMID: 26474377 DOI: 10.1016/j.jhazmat.2015.09.062] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 09/21/2015] [Accepted: 09/27/2015] [Indexed: 05/19/2023]
Abstract
Although complex mixtures of dioxin-related compounds (DRCs) can be released from informal e-waste recycling, DRC contamination in African e-waste recycling sites has not been investigated. This study examined the concentrations of DRCs including chlorinated, brominated, mixed halogenated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs, PBDD/Fs, PXDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) in surface soil samples from the Agbogbloshie e-waste recycling site in Ghana. PCDD/F and PBDD/F concentrations in open burning areas (18-520 and 83-3800 ng/g dry, respectively) were among the highest reported in soils from informal e-waste sites. The concentrations of PCDFs and PBDFs were higher than those of the respective dibenzo-p-dioxins, suggesting combustion and PBDE-containing plastics as principal sources. PXDFs were found as more abundant than PCDFs, and higher brominated analogues occurred at higher concentrations. The median total WHO toxic equivalent (TEQ) concentration in open burning soils was 7 times higher than the U.S. action level (1000 pg/g), with TEQ contributors in the order of PBDFs>>PCDD/Fs>PXDFs. DRC emission to soils over the e-waste site as of 2010 was estimated, from surface soil lightness based on the correlations between concentrations and lightness, at 200mg (95% confidence interval 93-540 mg) WHO-TEQ over three years. People living in Agbogbloshie are potentially exposed to high levels of not only chlorinated but also brominated DRCs, and human health implications need to be assessed in future studies.
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Affiliation(s)
- Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Akitoshi Goto
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Shin Takahashi
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan; Center of Advanced Technology for the Environment, Faculty of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan.
| | - Takaaki Itai
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Kwadwo Ansong Asante
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan; CSIR Water Research Institute, P.O. AH 38, Achimota, Accra, Ghana
| | - Tatsuya Kunisue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
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