1
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Inomata Y, Aoyama M, Tsubono T, Tsumune D, Kumamoto Y, Nagai H, Yamagata T, Kajino M, Tanaka YT, Sekiyama TT, Oka E, Yamada M. Estimate of Fukushima-derived radiocaesium in the North Pacific Ocean in summer 2012. J Radioanal Nucl Chem 2018; 318:1587-1596. [PMID: 30546185 PMCID: PMC6267120 DOI: 10.1007/s10967-018-6249-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Indexed: 11/25/2022]
Abstract
Distributions of radiocaesium (134Cs and 137Cs) derived from the Tokyo Electric Power Company (TEPCO) Fukushima Dai-ichi Nuclear Power Plant (FNPP1) accident in the North Pacific Ocean in the summer of 2012 were investigated. We have estimated the radiocaesium inventory in the surface layer using the optimal interpolation analysis and the subducted amount into the central mode water (CMW) by using vertical profiles of FNPP1-134Cs and mass balance analysis as the first approach. The inventory of the 134Cs in the surface layer in the North Pacific Ocean in August-December 2012 was estimated at 5.1 ± 0.9 PBq on 1 October 2012, which corresponds to 8.6 ± 1.5 PBq when it was decay corrected to the date of the FNPP1 accident, 11 March 2011. It was revealed that 56 ± 10% of the released 134Cs into the North Pacific Ocean, which was estimated at 15.3 ± 2.6 PBq, transported eastward in the surface layer in 2012. The amount of 134Cs subducted in the CMW was estimated to be 2.5 ± 0.9 PBq based on the mass balance among the three domains of the surface layer, subtropical mode water, and CMW.
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Affiliation(s)
- Y. Inomata
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa, 920-1192 Japan
| | - M. Aoyama
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima, 960-1192 Japan
| | - T. Tsubono
- Environmental Science Research Laboratory, Central Research Institute of Electronic Power Industry, 1646, Abiko, 270-1194 Japan
| | - D. Tsumune
- Environmental Science Research Laboratory, Central Research Institute of Electronic Power Industry, 1646, Abiko, 270-1194 Japan
| | - Y. Kumamoto
- Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-cho, Yokosuka, 237-0061 Japan
| | - H. Nagai
- Nihon University, 40-25-3 Sakurajosui, Setagaya, Tokyo, 156-8550 Japan
| | - T. Yamagata
- Nihon University, 40-25-3 Sakurajosui, Setagaya, Tokyo, 156-8550 Japan
| | - M. Kajino
- Meteorological Research Institute, 1-1 Nagamine, Tsukuba, 305-0052 Japan
| | - Y. T. Tanaka
- Meteorological Research Institute, 1-1 Nagamine, Tsukuba, 305-0052 Japan
| | - T. T. Sekiyama
- Meteorological Research Institute, 1-1 Nagamine, Tsukuba, 305-0052 Japan
| | - E. Oka
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, 277-8564 Japan
| | - M. Yamada
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, 036-8564 Japan
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Maderich V, Bezhenar R, Tateda Y, Aoyama M, Tsumune D. Similarities and differences of 137Cs distributions in the marine environments of the Baltic and Black seas and off the Fukushima Dai-ichi nuclear power plant in model assessments. Mar Pollut Bull 2018; 135:895-906. [PMID: 30301112 DOI: 10.1016/j.marpolbul.2018.08.026] [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: 04/02/2018] [Revised: 08/08/2018] [Accepted: 08/12/2018] [Indexed: 06/08/2023]
Abstract
The compartment model POSEIDON-R with an embedded food web model was used to assess 137Cs distributions in the Baltic and Black seas and off the Pacific coast of Japan during 1945-2020 due to the weapon testing and accidents at the Chernobyl and Fukushima Dai-ichi nuclear power plants. The results of simulations conducted with generic parameters agreed well with measurements of 137Cs concentrations in the water, bottom sediments, and in fish. In the Black and Baltic seas, salinity variations affected the transfer of 137Cs through the food web. The contamination of pelagic fish followed the water contamination with some delay, whereas demersal fish depuration was found to be related to decreasing 137Cs concentrations in the upper sediment layer. On the Pacific shelf off Japan, intensive currents and eddies caused the simulated depuration rates in fish to be one-two orders of magnitude larger than those in the semi-enclosed Black and Baltic seas.
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Affiliation(s)
- V Maderich
- Institute of Mathematical Machine and System Problems, Kiev, Ukraine.
| | - R Bezhenar
- Institute of Mathematical Machine and System Problems, Kiev, Ukraine
| | - Y Tateda
- Nuclear Risk Research Center, Central Research Institute of Electric Power Industry, Chiba, Japan
| | - M Aoyama
- Institute of Environmental Radioactivity, Fukushima University, Fukushima, Japan
| | - D Tsumune
- Nuclear Risk Research Center, Central Research Institute of Electric Power Industry, Chiba, Japan
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Iwata E, Kondo T, Nishiyama I, Ishihara T, Kazama S, Okamoto H, Aoyama M, Tanimura D, Kato T, Awaji Y, Murohara T. P2815The prognostic impact of delirium in patients with acute decompensated heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- E Iwata
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - T Kondo
- Nagoya University Hospital, Department of Cardiology, Nagoya, Japan
| | - I Nishiyama
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - T Ishihara
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - S Kazama
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - H Okamoto
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - M Aoyama
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - D Tanimura
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - T Kato
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - Y Awaji
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Hospital, Department of Cardiology, Nagoya, Japan
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Vives I Batlle J, Aoyama M, Bradshaw C, Brown J, Buesseler KO, Casacuberta N, Christl M, Duffa C, Impens NREN, Iosjpe M, Masqué P, Nishikawa J. Marine radioecology after the Fukushima Dai-ichi nuclear accident: Are we better positioned to understand the impact of radionuclides in marine ecosystems? Sci Total Environ 2018; 618:80-92. [PMID: 29127871 DOI: 10.1016/j.scitotenv.2017.11.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/01/2017] [Accepted: 11/01/2017] [Indexed: 06/07/2023]
Abstract
This paper focuses on how a community of researchers under the COMET (CO-ordination and iMplementation of a pan European projecT for radioecology) project has improved the capacity of marine radioecology to understand at the process level the behaviour of radionuclides in the marine environment, uptake by organisms and the resulting doses after the Fukushima Dai-ichi nuclear accident occurred in 2011. We present new radioecological understanding of the processes involved, such as the interaction of waterborne radionuclides with suspended particles and sediments or the biological uptake and turnover of radionuclides, which have been better quantified and mathematically described. We demonstrate that biokinetic models can better represent radionuclide transfer to biota in non-equilibrium situations, bringing more realism to predictions, especially when combining physical, chemical and biological interactions that occur in such an open and dynamic environment as the ocean. As a result, we are readier now than we were before the FDNPP accident in terms of having models that can be applied to dynamic situations. The paper concludes with our vision for marine radioecology as a fundamental research discipline and we present a strategy for our discipline at the European and international levels. The lessons learned are presented along with their possible applicability to assess/reduce the environmental consequences of future accidents to the marine environment and guidance for future research, as well as to assure the sustainability of marine radioecology. This guidance necessarily reflects on why and where further research funding is needed, signalling the way for future investigations.
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Affiliation(s)
- J Vives I Batlle
- Belgian Nuclear Research Centre (SCK•CEN), Boeretang 200, 2400 Mol, Belgium.
| | - M Aoyama
- Institute of Environmental Radioactivity, Fukushima University, Fukushima 960-1296, Japan
| | - C Bradshaw
- Department of Ecology, Environment, and Plant Sciences, Stockholm University, 10691 Stockholm, Sweden
| | - J Brown
- Norwegian Radiation Protection Authority (NRPA), Department of Emergency Preparedness and Environmental Radioactivity, Grini Næringspark 13, Postbox 55, NO-1332, Østerås, Norway
| | - K O Buesseler
- Woods Hole Oceanographic Institution, Woods Hole, MA 02543, United States
| | - N Casacuberta
- Laboratory of Ion Beam Physics, ETH-Zurich, Otto Stern Weg 5, 8093 Zurich, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, Environmental Physics, ETH-Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
| | - M Christl
- Laboratory of Ion Beam Physics, ETH-Zurich, Otto Stern Weg 5, 8093 Zurich, Switzerland
| | - C Duffa
- Institut de Radioprotection et de Sureté Nucléaire (IRSN), Centre de Cadarache, 13115 St Paul Lez Durance, France
| | - N R E N Impens
- Belgian Nuclear Research Centre (SCK•CEN), Boeretang 200, 2400 Mol, Belgium
| | - M Iosjpe
- Norwegian Radiation Protection Authority (NRPA), Department of Emergency Preparedness and Environmental Radioactivity, Grini Næringspark 13, Postbox 55, NO-1332, Østerås, Norway
| | - P Masqué
- School of Science and Centre for Marine Ecosystems Research, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027, Australia; Departament de Física & Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - J Nishikawa
- School of Marine Science and Technology, Tokai University, Shizuoka 424-8610, Japan
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Ejima T, Kado M, Aoyama M, Yasuda K, Tamotsu S. Organelle Distribution in a Hydrated Bio-cell by Correlation between Soft X-ray and Fluorescence Images. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/849/1/012009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ikuta K, Waguri-Nagaya Y, Tatematsu N, Kawaguchi Y, Terazawa T, Kobayashi M, Aoyama M, Asai K, Otsuka T. FRI0018 Sp1 Interference Prevents Joint Destruction of Ra through Inhibitory Effects of Gliostatin and Matrix Metalloproteinase-3. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3480] [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: 11/03/2022]
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7
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Tatematsu N, Waguri-Nagaya Y, Kawaguchi Y, Ikuta K, Kobayashi M, Nozaki M, Asai K, Aoyama M, Otsuka T. FRI0055 Sp1 Inhibitor Modulates The Autocrine Action of Gliostatin/Thymidine Phosphorylase (GLS/TYMP) in Rheumatoid Fibroblast-like Synoviocytes. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2028] [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: 11/03/2022]
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8
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Aoyama M, Hult M, Hamajima Y, Lutter G, Marissens G, Stroh H, Tzika F. Tracing radioactivity from Fukushima in the Northern Pacific Ocean. Appl Radiat Isot 2016; 109:435-440. [DOI: 10.1016/j.apradiso.2015.11.103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 11/25/2015] [Indexed: 11/27/2022]
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9
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Inomata Y, Aoyama M, Tsubono T, Tsumune D, Hirose K. Spatial and temporal distributions of (134)Cs and (137)Cs derived from the TEPCO Fukushima Daiichi Nuclear Power Plant accident in the North Pacific Ocean by using optimal interpolation analysis. Environ Sci Process Impacts 2016; 18:126-136. [PMID: 26662211 DOI: 10.1039/c5em00324e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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
Optimal interpolation (OI) analysis was used to investigate the oceanic distributions of (134)Cs and (137)Cs released from the Tokyo Electric Power Company Fukushima Daiichi Nuclear Power Plant (FNPP1) accident. From the end of March to early April 2011, extremely high activities were observed in the coastal surface seawater near the FNPP1. The high activities spread to a region near 165°E in the western North Pacific Ocean, with a latitudinal center of 40°N. Atmospheric deposition also caused high activities in the region between 180° and 130°W in the North Pacific Ocean. The inventory of FNPP1-released (134)Cs in the North Pacific Ocean was estimated to be 15.3 ± 2.6 PBq. About half of this activity (8.4 ± 2.6 PBq) was found in the coastal region near the FNPP1. After 6 April 2011, when major direct releases ceased, the FNPP1-released (134)Cs in the coastal region decreased exponentially with an apparent half-time of about 4.2 ± 0.5 days and declined to about 2 ± 0.4 PBq by the middle of May 2011. Taking into account that the (134)Cs/(137)Cs activity ratio was about 1 just after release and was extremely uniform during the first month after the accident, the amount of (137)Cs released by the FNPP1 accident increased the North Pacific inventory of (137)Cs due to bomb testing during the 1950s and early 1960s by 20%.
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Affiliation(s)
- Y Inomata
- Atmospheric Research Department, Asia Center for Air Pollution Research, 1182, Sowa, Nishiku, Niigata-shi, Niigata-ken 950-2144, Japan.
| | - M Aoyama
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima-shi, Fukushima-ken 960-1296, Japan
| | - T Tsubono
- Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko-shi, Chiba-ken 270-1194, Japan
| | - D Tsumune
- Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko-shi, Chiba-ken 270-1194, Japan
| | - K Hirose
- Department of Material and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, Tokyo 102-8554, Japan
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Sato Y, Maeda Y, Minami H, Yasukawa Y, Yamamoto K, Tamamura H, Shibata S, Bou S, Sasaki M, Tameshige Y, Ooto H, Kasahara S, Shimizu Y, Saga Y, Omoya A, Saito M, Aoyama M. Daily Dose Evaluation Utilizing In-Room Computed Tomography Positioning System for Prostate Cancer Treatment in Proton Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1163] [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: 10/22/2022]
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11
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Ikuta K, Waguri-Nagaya Y, Tatematsu N, Kawaguchi Y, Terazawa T, Kobayashi M, Aoyama M, Asai K, Otsuka T. SAT0020 A Role for P38 Mitogen-Activated Protein Kinase (MAPK) in Gliostatin Production in Rheumatoid Fibroblast-Like Synoviocytes. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2045] [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: 11/04/2022]
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12
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Kawaguchi Y, Waguri-Nagaya Y, Ikuta K, Tatematsu N, Kobayashi M, Goto H, Nozaki M, Aoyama M, Asai K, Otsuka T. AB0081 The Inhibitory Effect of Synthetic Disease-Modifying Anti-Rheumatic Drugs and Steroids on Gliostatin/Platelet-Derived Endothelial Cell Growth Factor Production in Human Fibroblast-Like Synoviocytes. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2471] [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: 11/03/2022]
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13
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Usuda S, Aoyama M, Nagatomi F, Harada K, Matsuba Y, Yoshida T, Nozaki N, Uchiyama Y. Multidisciplinary consensus on a comprehensive assessment in rehabilitation using a Delphi study. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1562] [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: 10/23/2022]
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14
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Ikuta K, Waguri-Nagaya Y, Tatematsu N, Kawaguchi Y, Kobayashi M, Aoyama M, Asai K, Otsuka T. AB0070 The Importance of Gliostatin as an Indicator of Disease Activity in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2315] [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: 11/04/2022]
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15
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Togashi T, Takahashi E, Midorikawa K, Aoyama M, Yamakawa K, Sato T, Iwasaki A, Owada S, Yamanouchi K, Hara T, Matsubara S, Ohshima T, Otake Y, Tamasaku K, Tanaka H, Tanaka T, Tomizawa H, Watanabe T, Yabashi M, Ishikawa T. Extreme ultraviolet free electron laser seeded by high-order harmonic. Radiat Phys Chem Oxf Engl 1993 2013. [DOI: 10.1016/j.radphyschem.2013.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Monji A, Kureishi Bando Y, Aoyama M, Mitsui T, Murohara T. Glucose depletion is essential for the calorie-restriction-mediated cardiac angiogenesis via PKA/AMPK-dependent autophagy. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht311.5870] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Monji A, Kureishi Bando Y, Mitsui T, Aoyama M, Murohara T. Mitochondrial SIRT3 is upregulated by Glucagon-like peptide-1 receptor activation and contributes to reversal of cardiac mitochondrial remodeling induced by type 2 diabetes. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Aoyama M, Kureishi Bando Y, Monji A, Cheng XW, Inoue A, Monji A, Mitsui T, Kuzuya M, Murohara T. Akt is essential for adaptive response of systolic left-ventricular function and aging-induced intolerance to exercise. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5028] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Ikuta K, Nagaya Y, Terazawa T, Aoyama M, Asai K, Kobayashi M, Otsuka T. AB0046 The sp1 transcription factor is essential for the expression of gliostatin/thymidine phosphorylase in rheumatoid fibroblast-like synoviocytes. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2369] [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: 11/04/2022]
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Tatematsu N, Waguri-Nagaya Y, Nagahara M, Ikuta K, Aoyama M, Asai K, Otsuka T. THU0091 Aquaporin Expression in the Synovial Tissues of Patients with Osteoarthritis and Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.619] [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: 11/04/2022]
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21
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Furutachi K, Sakamoto M, Aoyama M, Mizuguchi M, Miyata Y, Akabane Y, Yoshikawa M, Imai T. Measurement of Local Radial Electric Field by Using Gold Neutral Beam Probe in GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16949] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Furutachi
- Plasma Research Center, University of Tsukuba, Tsukuba City, Japan, 305-8577
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba City, Japan, 305-8577
| | - M. Aoyama
- Plasma Research Center, University of Tsukuba, Tsukuba City, Japan, 305-8577
| | - M. Mizuguchi
- Plasma Research Center, University of Tsukuba, Tsukuba City, Japan, 305-8577
| | - Y. Miyata
- Japan Atomic Energy Agency, Naka City, Ibaraki pref., Japan, 311-0193
| | - Y. Akabane
- Plasma Research Center, University of Tsukuba, Tsukuba City, Japan, 305-8577
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba City, Japan, 305-8577
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba City, Japan, 305-8577
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Yamashita K, Yoshioka Y, Pan H, Taira M, Ogura T, Nagano T, Aoyama M, Nagano K, Abe Y, Kamada H, Tsunoda SI, Aoshima H, Nabeshi H, Yoshikawa T, Tsutsumi Y. Biochemical and hematologic effects of polyvinylpyrrolidone-wrapped fullerene C60 after oral administration. Pharmazie 2013; 68:54-57. [PMID: 23444781] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The fullerene C60 is used in consumer products such as cosmetics owing to its antioxidative effects and is being developed for nanomedical applications. However, knowledge regarding the safety of fullerene C60, especially after oral administration, is sparse. Here, we examined the safety of fullerene C60 in mice after 7 d of exposure to orally administered polyvinylpyrrolidone (PVP)-wrapped fullerene C60 (PVP-fullerene C60). Mice treated with PVP-fullerene C60 showed few changes in the plasma levels of various markers of kidney and liver injury and experienced no significant hematologic effects. Furthermore, the histology of the colon of PVP-fullerene C60-treated mice was indistinguishable from that of control mice. These results suggest that PVP-fullerene C60 lacks toxicity after high-dose oral administration and indicate that PVP-fullerene C60 can be considered safe for oral medication. These data provide basic information that likely will facilitate the production of safe and effective forms of fullerene C60.
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Affiliation(s)
- K Yamashita
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
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23
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Iwasaki A, Sato T, Owada S, Togashi T, Takahashi E, Midorikawa K, Aoyama M, Yamakawa K, Matsubara S, Okayasu Y, Tomizawa H, Watanabe T, Nagasono M, Yabashi M, Ishikawa T, Yamanouchi K. Synchronization of FEL and high-order harmonics of ultrashort-pulsed laser for generating intense full-coherent EUV light pulses. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134101018] [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: 11/14/2022] Open
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24
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Inomata Y, Aoyama M, Tsumune D, Motoi T, Nakano H. Optimum interpolation analysis of basin-scale ¹³⁷Cs transport in surface seawater in the North Pacific Ocean. J Environ Monit 2012; 14:3146-55. [PMID: 23117411 DOI: 10.1039/c2em30707c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
¹³⁷Cs is one of the conservative tracers applied to the study of oceanic circulation processes on decadal time scales. To investigate the spatial distribution and the temporal variation of ¹³⁷Cs concentrations in surface seawater in the North Pacific Ocean after 1957, a technique for optimum interpolation (OI) was applied to understand the behaviour of ¹³⁷Cs that revealed the basin-scale circulation of Cs ¹³⁷Cs in surface seawater in the North Pacific Ocean: ¹³⁷Cs deposited in the western North Pacific Ocean from global fallout (late 1950s and early 1960s) and from local fallout (transported from the Bikini and Enewetak Atolls during the late 1950s) was further transported eastward with the Kuroshio and North Pacific Currents within several years of deposition and was accumulated in the eastern North Pacific Ocean until 1967. Subsequently, ¹³⁷Cs concentrations in the eastern North Pacific Ocean decreased due to southward transport. Less radioactively contaminated seawater was also transported northward, upstream of the North Equatorial Current in the western North Pacific Ocean in the 1970s, indicating seawater re-circulation in the North Pacific Gyre.
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Affiliation(s)
- Y Inomata
- Atmospheric Research Department, Asia Center For Air Pollution Research, Niigata, Japan.
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Aoyama M, Kakita H, Kato S, Tomita M, Asai K. Region-specific expression of a water channel protein, aquaporin 4, on brain astrocytes. J Neurosci Res 2012; 90:2272-80. [DOI: 10.1002/jnr.23117] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Revised: 06/18/2012] [Accepted: 06/27/2012] [Indexed: 11/11/2022]
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McPherson CA, Aoyama M, Harry GJ. Interleukin (IL)-1 and IL-6 regulation of neural progenitor cell proliferation with hippocampal injury: differential regulatory pathways in the subgranular zone (SGZ) of the adolescent and mature mouse brain. Brain Behav Immun 2011; 25:850-62. [PMID: 20833246 PMCID: PMC3033445 DOI: 10.1016/j.bbi.2010.09.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 09/03/2010] [Accepted: 09/06/2010] [Indexed: 12/13/2022] Open
Abstract
Current data suggests an association between elevations in interleukin 1 (IL-1)α, IL-1β, and IL-6 and the proliferation of neural progenitor cells (NPCs) following brain injury. A limited amount of work implicates changes in these pro-inflammatory responses with diminished NPC proliferation observed as a function of aging. In the current study, adolescent (21day-old) and 1year-old CD-1 male mice were injected with trimethyltin (TMT, 2.3mg/kg, i.p.) to produce acute apoptosis of hippocampal dentate granule cells. In this model, fewer 5-bromo-2'-deoxyuridine (BrdU)+ NPC were observed in both naive and injured adult hippocampus as compared to the corresponding number seen in adolescent mice. At 48h post-TMT, a similar level of neuronal death was observed across ages, yet activated ameboid microglia were observed in the adolescent and hypertrophic process-bearing microglia in the adult. IL-1α mRNA levels were elevated in the adolescent hippocampus; IL-6 mRNA levels were elevated in the adult. In subgranular zone (SGZ) isolated by laser-capture microdissection, IL-1β was detected but not elevated by TMT, IL-1a was elevated at both ages, while IL-6 was elevated only in the adult. Naïve NPCs isolated from the hippocampus expressed transcripts for IL-1R1, IL-6Rα, and gp130 with significantly higher levels of IL-6Rα mRNA in the adult. In vitro, IL-1α (150pg/ml) stimulated proliferation of adolescent NPCs; IL-6 (10ng/ml) inhibited proliferation of adolescent and adult NPCs. Microarray analysis of SGZ post-TMT indicated a prominence of IL-1a/IL-1R1 signaling in the adolescent and IL-6/gp130 signaling in the adult.
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Affiliation(s)
- CA McPherson
- Neurotoxicology Group, Laboratory of Toxicology and Pharmacology, National Institute of Environmental Health Sciences, National Institutes of Health
,Curriculum in Toxicology, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - M Aoyama
- Neurotoxicology Group, Laboratory of Toxicology and Pharmacology, National Institute of Environmental Health Sciences, National Institutes of Health
,Department of Molecular Neurobiology, Nagoya City University, Nagoya, Japan
| | - GJ Harry
- Neurotoxicology Group, Laboratory of Toxicology and Pharmacology, National Institute of Environmental Health Sciences, National Institutes of Health
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Corresponding address: National Institute of Environmental Health Sciences, P.O. Box 12233, MD C1-04, Research Triangle Park, NC 27709. Ph. (919) 541-0927, Fax. (919) 541-4634,
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Nakagawa M, Aoyama M, Ikeda M, Morimoto M, Takechi H, Kawakami Y, Kennzaki K, Tangoku A. Phase II trial report of the new preoperative chemotherapy with S-1 and docetaxel for advanced breast cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.1075] [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: 11/20/2022] Open
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Kober A, Aoyama M, Sugita S. Immunohistochemical localization of catecholamine biosynthetic enzymes in the adrenal gland of the domestic fowl (Gallus domesticus). Poult Sci 2010; 89:1709-15. [DOI: 10.3382/ps.2009-00588] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kawashita I, Masumoto Y, Aoyama M, Asada N, Nakajima M, Okura Y, Ishida T. SU-GG-I-100: Development of Computerized Method for Automated Detection of Mesothelioma on 3D Thoracic CT. Med Phys 2010. [DOI: 10.1118/1.3468133] [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: 11/07/2022] Open
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Hirose K, Igarashi Y, Aoyama M, Inomata Y. Depositional behaviors of plutonium and thorium isotopes at Tsukuba and Mt. Haruna in Japan indicate the sources of atmospheric dust. J Environ Radioact 2010; 101:106-112. [PMID: 19804923 DOI: 10.1016/j.jenvrad.2009.09.003] [Citation(s) in RCA: 4] [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] [Received: 04/01/2009] [Revised: 09/02/2009] [Accepted: 09/02/2009] [Indexed: 05/28/2023]
Abstract
Monthly plutonium and thorium depositions at Tsukuba (28m asl) and Mt. Haruna (1370m asl) were measured during 2006 and 2007 (Jan 2006-Dec 2007 at Tsukuba, Nov 2006-Dec 2007 at Mt. Haruna). The monthly (239,240)Pu depositions ranged from 0.044 to 2.67mBq m(-2) at Tsukuba and from 0.05 to 0.9mBq m(-2) at Mt. Haruna during the measurement periods. Monthly (239,240)Pu deposition did not differ markedly between the two sites except in April 2007. Seasonal pattern of monthly (239,240)Pu depositions at both sites showed high in spring and low in summer, and typical of seasonal variations in northeastern Asia. Thorium deposition at Tsukuba was higher than that at Mt. Haruna except in May and June 2007. (230)Th/(232)Th activity ratios were used to partition deposition samples into locally and remotely derived fractions. The results revealed that a major proportion of total (239,240)Pu and Th deposits are derived from remote sources, especially in spring.
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Affiliation(s)
- K Hirose
- Meteorological Research Institute, Geochemical Research Department, Nagamine 1-1, Tsukuba, Ibaraki 305-0052, Japan.
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Ogawa K, Sueda K, Akahane Y, Aoyama M, Tsuji K, Fujioka K, Kanabe T, Yamakawa K, Miyanaga N. Controlling the phase matching conditions of optical parametric chirped-pulse amplification using partially deuterated KDP. Opt Express 2009; 17:7744-7749. [PMID: 19434105 DOI: 10.1364/oe.17.007744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Using a partially deuterated KDP crystal for an optical parametric amplifier, we demonstrated ultrabroadband optical parametric chirped-pulse amplification of more than 250 nm bandwidth at a center wavelength of 1050 nm. We numerically show how to control the broadband phase matching conditions at different wavelengths to match center wavelengths of suitable broadband seed sources by adjusting the deuteration level in partially deuterated KDP.
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Affiliation(s)
- K Ogawa
- Japan Atomic Energy Agency, Kyoto, Japan.
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Kishida K, Aoyama M, Masaki M, Shidoji Y. The Ala54Thr polymorphism in the fatty acid-binding protein 2 gene leads to higher food intake in Japanese women. Mol Psychiatry 2009; 14:466-7. [PMID: 19384318 DOI: 10.1038/mp.2008.140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hirose K, Igarashi Y, Aoyama M. Analysis of the 50-year records of the atmospheric deposition of long-lived radionuclides in Japan. Appl Radiat Isot 2008; 66:1675-8. [DOI: 10.1016/j.apradiso.2007.09.019] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2007] [Accepted: 09/17/2007] [Indexed: 11/29/2022]
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Satake H, Aoyama M, Kawada T, Sekiguchi T, Sakai T, Fujie M, Satoh N. Neuropeptides and their receptors of the protochordate, Ciona intestinalis: the evolutionary origin of vertebrate neuropeptides. Acta Biol Hung 2008; 59 Suppl:237-9. [PMID: 18652397 DOI: 10.1556/abiol.59.2008.suppl.33] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Ci-TK and Ci-TK-R are authentic tachykinin (TK) and TK receptor isolated from a protochordate, Ciona intestinalis. In this study, we investigated a novel function of TK as an enhancer of oocyte growth. Ci-TK-R is expressed specifically in the Ciona vitellogenic oocytes. Moreover, administration of Ci-TK to the Ciona ovary resulted in upregulation of gene expression and enzymatic activity of several proteases. Moreover, maturation of the Ciona oocytes from the vitellogenic stage to the post-vitellogenic stage was induced in the presence of Ci-TK, which was completely blocked by addition of protease inhibitors.
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Affiliation(s)
- H Satake
- Suntory Institute for Bioorganic Research, Osaka, Japan.
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Abstract
Gonadotropin-releasing hormone (GnRH) is a ten-amino acid peptide hormone that plays pivotal roles in reproduction in vertebrates and octopus. Recently, six GnRH forms (t-GnRH-3-8) and four GnRH receptor subtypes (Ci-GnRHR-1-4) were identified in the protochordate, Ciona intestinalis. In this study, we show the functional modulation of Ci-GnRHR-1 via heterodimerization with the orphan receptor subtype, Ci-GnRHR-4. The dimerization between Ci-GnRHR-1 and R-4 was detected by co-immunoprecipitation and immunoblot analysis. Binding assays confirmed the binding of t-GnRHs to Ci-GnRHR-1 but not to R-4, and verified no alternation in ligand-binding affinity between Ci-GnRHR-1 homodimer and Ci-GnRHRI&4 heterodimer. The heterodimer was found to stimulate the elevation of intracellular calcium, time-extension of ERK phosphorylation, and up-regulation of cell proliferation, all in a ligand specific manner, compared with the Ci-GnRHR-1 homodimer. In combination, these results indicated that Ci-GnRHR-4 is not an inactive receptor, but a modulatory factor for Ci-GnRHR-1 in C. intestinalis.
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Affiliation(s)
- T Sakai
- Suntory Institute for Bioorganic Research, Osaka, Japan.
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Hirose K, Aoyama M, Igarashi Y, Komura K. Improvement of 137Cs analysis in small volume seawater samples using the Ogoya underground facility. J Radioanal Nucl Chem 2008. [DOI: 10.1007/s10967-008-0634-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hirose K, Aoyama M, Fukasawa M, Kim CS, Komura K, Povinec PP, Sanchez-Cabeza JA. Plutonium and 137Cs in surface water of the South Pacific Ocean. Sci Total Environ 2007; 381:243-55. [PMID: 17459459 DOI: 10.1016/j.scitotenv.2007.03.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2006] [Revised: 03/15/2007] [Accepted: 03/19/2007] [Indexed: 05/15/2023]
Abstract
The present plutonium and 137Cs concentrations in South Pacific Ocean surface waters were determined. The water samples were collected in the South Pacific mid-latitude region (32.5 degrees S) during the BEAGLE expedition conducted in 2003-04 by JAMSTEC. 239,240Pu concentrations in surface seawater of the South Pacific were in the range of 0.5 to 4.1 mBq m(-3), whereas 137Cs concentrations ranged from 0.07 to 1.7 Bq m(-3). The observed 239,240Pu and 137Cs concentrations in the South Pacific were almost of the same level as those in the North Pacific subtropical gyre. The surface 239,240Pu in the South Pacific subtropical gyre showed larger spatial variations than 137Cs, as it may be affected by physical and biogeochemical processes. The 239,240Pu/137Cs activity ratios, which reflect biogeochemical processes in seawater, were generally smaller than that observed in global fallout, except for the most eastern station. The 239,240Pu/137Cs ratios in the South Pacific tend to be higher than that in the North Pacific. The relationships between anthropogenic radionuclides and oceanographic parameters such as salinity and nutrients were examined. The 137Cs concentrations in the western South Pacific (the Tasman Sea) and the eastern South Pacific were negatively correlated with the phosphate concentration, whereas there is no correlation between the 137Cs and nutrients concentrations in the South Pacific subtropical gyre. The mutual relationships between anthropogenic radionuclides and oceanographic parameters are important for better understanding of transport processes of anthropogenic radionuclides and their fate in the South Pacific.
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Affiliation(s)
- K Hirose
- Meteorological Research Institute, Nagamine 1-1, Tsukuba, Ibaraki 305-0052, Japan.
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Ogawa K, Akahane Y, Aoyama M, Tsuji K, Tokita S, Kawanaka J, Nishioka H, Yamakawa K. Multi-millijoule, diode-pumped, cryogenically-cooled Yb:KY(WO(4))(2) chirped-pulse regenerative amplifier. Opt Express 2007; 15:8598-8602. [PMID: 19547193 DOI: 10.1364/oe.15.008598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A diode-pumped, cryogenically-cooled Yb:KYW regenerative amplifier utilizing chirped-pulse amplification and regenerative pulse shaping has been developed. An amplified pulse with an energy of 5.5 mJ and a broad bandwidth of 3.4 nm is achieved.
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Akahane Y, Aoyama M, Ogawa K, Tsuji K, Tokita S, Kawanaka J, Nishioka H, Yamakawa K. High-energy, diode-pumped, picosecond Yb:YAG chirped-pulse regenerative amplifier for pumping optical parametric chirped-pulse amplification. Opt Lett 2007; 32:1899-901. [PMID: 17603607 DOI: 10.1364/ol.32.001899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A diode-pumped, cryogenic-cooled Yb:YAG regenerative amplifier utilizing gain-narrowing has been developed. A 1.2-ns chirped-seed pulse was simultaneously amplified and compressed in the regenerative amplifier, which generated a 35-ps pulse with ~8-mJ of energy without a pulse compressor. Second-harmonics of the amplified pulse was used to pump picosecond two-color optical parametric amplification.
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Affiliation(s)
- Y Akahane
- Japan Atomic Energy Agency, 8-1 Umemidai, Kizugawa, Kyoto, 619-0215 Japan.
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Deji N, Sugimoto T, Fujimoto T, Aoyama M, Takeda N, Sakaguchi M, Uzu T, Kashiwagi A. Emergence of panniculitis and haemophagocytic syndrome in a patient with chronic systemic lupus erythematosus. Lupus 2007; 16:363-5. [PMID: 17576740 DOI: 10.1177/0961203307077560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Panniculitis rarely occurs in the course of systemic lupus erythematosus (SLE). When it occurs, it is thought to be mainly lupus erythematosus panniculitis (LEP). Here we describe a 32-year old Japanese woman with chronic SLE, who simultaneously presented facial lymphocytic lobular panniculitis and pancytopenia due to haemophagocytic syndrome. She showed several auto-antibodies against trilineage haematopoetic cells, an anti-cardiolipin antibody, and no evidence of viral infection, indicating that her haemophagocytic syndrome might be autoimmune-associated haemophagocytic syndrome. The panniculitis and haemophagocytic syndrome presented simultaneously, and these manifestations were dramatically improved with corticosteroid therapy; therefore, the lymphocytic lobular panniculitis could be linked to autoimmune-associated haemophagocytic syndrome in this case.
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Affiliation(s)
- N Deji
- The Department of Medicine, Shiga University of Medical Science, Seta, Otsu, Japan
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Yamakawa K, Aoyama M, Akahane Y, Ogawa K, Tsuji K, Sugiyama A, Harimoto T, Kawanaka J, Nishioka H, Fujita M. Ultra-broadband optical parametric chirped-pulse amplification using an Yb: LiYF(4) chirped-pulse amplification pump laser. Opt Express 2007; 15:5018-5023. [PMID: 19532750 DOI: 10.1364/oe.15.005018] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We demonstrate ultra-broadband optical parametric chirpedpulse amplification of 300-nm bandwidth pumped by a broadband pulse delivered from a diode-pumped, cryogenically-cooled Yb:YLF chirped- pulse amplification laser.
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Affiliation(s)
- K Yamakawa
- Japan Atomic Energy Agency, 8-1 Umemidai, Kizu, Kyoto 619-0215, Japan.
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Hosoya M, Kawasaki Y, Katayose M, Sakuma H, Watanabe M, Igarashi E, Aoyama M, Nunoi H, Suzuki H. Prognostic predictive values of serum cytochrome c, cytokines, and other laboratory measurements in acute encephalopathy with multiple organ failure. Arch Dis Child 2006; 91:469-72. [PMID: 16443616 PMCID: PMC2082805 DOI: 10.1136/adc.2005.078436] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To evaluate the prognostic predictive values of cytochrome c, cytokines, and other laboratory measurements in serum collected during neurological onset in acute encephalopathy with multiple organ failure. METHODS In addition to general laboratory examinations, the concentrations of cytochrome c (apoptosis marker) and cytokines (inflammatory markers) were measured in serum samples collected at the initial phase in 29 patients with acute encephalopathy. The obtained values were evaluated as predictors for the development of severe encephalopathy. RESULTS Cytochrome c, tumour necrosis factor alpha (TNF-alpha), interleukin 6 (IL-6), soluble TNF-receptor 1 (sTNF-R1), and aspartate aminotransferase (AST) concentrations at the initial phase were high and correlated well with patient outcome. High concentrations of serum cytochrome c (>45 ng/ml), sTNF-R1 (>2000 pg/ml), AST (>58 IU/dl), IL-6 (>60 pg/ml), and TNF-alpha (>15 pg/ml) predicted an unfavourable prognosis (sequelae and death) at 93%, 79%, 82%, 77%, and 60%, respectively. The specificity of those markers was 100%, 89%, 83%, 100%, and 100%, respectively. CONCLUSIONS Serum cytochrome c is the most sensitive and specific predictor for the development of severe encephalopathy at the initial phase. Results suggest that this marker might be used to guide decisions regarding the start of the initial treatment and further intensive care.
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Affiliation(s)
- M Hosoya
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan.
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Sherrill ME, Abdallah J, Csanak G, Dodd ES, Fukuda Y, Akahane Y, Aoyama M, Inoue N, Ueda H, Yamakawa K, Faenov AY, Magunov AI, Pikuz TA, Skobelev IY. Spectroscopic characterization of an ultrashort-pulse-laser-driven Ar cluster target incorporating both Boltzmann and particle-in-cell models. Phys Rev E Stat Nonlin Soft Matter Phys 2006; 73:066404. [PMID: 16906985 DOI: 10.1103/physreve.73.066404] [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] [Subscribe] [Scholar Register] [Received: 06/16/2005] [Revised: 02/21/2006] [Indexed: 05/11/2023]
Abstract
A model that solves simultaneously both the electron and atomic kinetics was used to generate a synthetic He alpha and satellite x-ray spectra to characterize a high intensity ultrashort laser driven Ar cluster target experiment. In particular, level populations were obtained from a detailed collisional-radiative model where collisional rates were computed from a time varying electron distribution function obtained from the solution of the zero-dimensional Boltzmann equation. In addition, a particle-in-cell simulation was used to model the laser interaction with the cluster target and provided the initial electron energy distribution function (EEDF) for the Boltzmann solver. This study suggests that a high density average, <Na>high, of 3.2 x 10(20) cm(-3) was held by the system for a time, delta tau, of 5.7 ps, and during this time the plasma was in a highly nonequilibrium state in both the EEDF and the ion level populations.
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Affiliation(s)
- M E Sherrill
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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Maejima Y, Aoyama M, Abe A, Sugita S. Induced expression of c-fos in the diencephalon and pituitary gland of goats following transportation1. J Anim Sci 2005; 83:1845-53. [PMID: 16024703 DOI: 10.2527/2005.8381845x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To identify regions of the caprine diencephalone and pituitary gland related to transportation stress, the expression of c-fos protein was examined immunohistochemically as an indicator of neural activation. Ten castrated Shiba goats (Capra hircus), five transported and five controls, were used. Transported goats were trucked for 1 h and killed by transcardiac perfusion 1 h after the end of transportation. Control goats were housed in single pens killed in the same manner and at the same time as the transported goats. The diencephalon and the pituitary gland were removed after perfusion and used for immunostaining. Plasma cortisol concentrations during and after transportation also were investigated. During transportation, plasma cortisol concentrations increased (P < 0.05) compared with those in the controls. In the diencephalon, c-fos immunoreactive cells were detected in the subcallosa, the lateral septal area, the bed nucleus of stria terminalis (BNST), the preoptic hypothalamic area (POA), the suprachiasmatic nucleus (SCN), the supraoptic nucleus, the paraventricular hypothalamic nucleus parvocellular (PVNp), the paraventricular hypothalamic nucleus magnocellular (PVNm), the arcuate nucleus (ARC), the paraventricular thalamic nucleus, and the stria medullaris in both control and transported goats. The numbers of c-fos immunoreactive cells were increased (P < 0.05) by transportation in the PVNm, the PVNp, the BNST, the POA, the ARC, and the SCN (P < 0.10). In the anterior pituitary gland, the number of c-fos immunoreactive cells in transported goats was 4 to 30 times as much as in control goats; however, there were no differences in the intermediate and posterior lobes between control and transported goats. This study has identified regions in the caprine diencephalon and pituitary gland that show transport-induced increases in c-fos immunoreactive cells. In conclusion, the PVNm, the PVNp, the BNST, the POA, the SCN in the diencephalons, and the anterior lobe of pituitary gland may be involved in the stress responses of goats to transportation.
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Affiliation(s)
- Y Maejima
- Department of Animal Science, Faculty of Agriculture, Utsunomiya University, Utsunomiya, Japan.
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Nishiyama O, Taniguchi H, Kondoh Y, Kimura T, Kato K, Tanikawa Y, Aoyama M, Suzuki R, Shimokata K. Meloxicam, a selective cyclooxygenase-2 (COX-2) inhibitor, enhances the response to carboplatin and weekly paclitaxel in advanced non-small cell lung cancer (NSCLC). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.7312] [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: 11/20/2022] Open
Affiliation(s)
- O. Nishiyama
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
| | - H. Taniguchi
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
| | - Y. Kondoh
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
| | - T. Kimura
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
| | - K. Kato
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
| | - Y. Tanikawa
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
| | - M. Aoyama
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
| | - R. Suzuki
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
| | - K. Shimokata
- Tosei Gen Hosp, Seto, Japan; Kamo Hosp, Toyota, Japan; Toyohashi Munincipal Hosp, Toyohashi, Japan; Nagoya Univ Sch of Medicine, Nagoya, Japan
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Hirose K, Aoyama M, Igarashi Y, Komura K. Ultra-sensitive mass spectrometric and other methods applied to environmental problems. J Radioanal Nucl Chem 2005. [DOI: 10.1007/s10967-005-0061-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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