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Yamazaki H, Kobayashi T, Hiranai S, Sawahata M, Toida N, Sato F, Hinata J, Terakado M, Ishita K, Ikeda R, Shinya T, Yajima S, Kajiwara K. Evaluation of a newly developed low reflection dummy load for high power millimeter waves. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Kobayashi T, Yamazaki H, Hiranai S, Sawahata M, Terakado M, Ishita K, Hinata J, Sato F, Wada K, Ikeda R, Shinya T, Yajima S, Kajiwara K, Takahashi K, Moriyama S. High power experiment and heat load evaluation of transmission line for the ECH/CD system in JT-60SA. Fusion Engineering and Design 2022. [DOI: 10.1016/j.fusengdes.2022.113009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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3
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Boulay F, Simpson GS, Ichikawa Y, Kisyov S, Bucurescu D, Takamine A, Ahn DS, Asahi K, Baba H, Balabanski DL, Egami T, Fujita T, Fukuda N, Funayama C, Furukawa T, Georgiev G, Gladkov A, Hass M, Imamura K, Inabe N, Ishibashi Y, Kawaguchi T, Kawamura T, Kim W, Kobayashi Y, Kojima S, Kusoglu A, Lozeva R, Momiyama S, Mukul I, Niikura M, Nishibata H, Nishizaka T, Odahara A, Ohtomo Y, Ralet D, Sato T, Shimizu Y, Sumikama T, Suzuki H, Takeda H, Tao LC, Togano Y, Tominaga D, Ueno H, Yamazaki H, Yang XF, Daugas JM. Boulay et al. Reply. Phys Rev Lett 2021; 127:169202. [PMID: 34723612 DOI: 10.1103/physrevlett.127.169202] [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] [Received: 04/28/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Affiliation(s)
- F Boulay
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- GANIL, CEA/DSM-CNRS/IN2P3, BP55027, 14076 Caen cedex 5, France
| | - G S Simpson
- LPSC, CNRS/IN2P3, Université Joseph Fourier Grenoble 1, INPG, 38026 Grenoble Cedex, France
| | - Y Ichikawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Kisyov
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - D Bucurescu
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - A Takamine
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D S Ahn
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Asahi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - H Baba
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D L Balabanski
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP), Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - T Egami
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - T Fujita
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - N Fukuda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - C Funayama
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - T Furukawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - G Georgiev
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - A Gladkov
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, South Korea
| | - M Hass
- Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - K Imamura
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Meiji University, 1-1-1 Higashi-Mita, Tama, Kawasaki, Kanagawa 214-8571, Japan
| | - N Inabe
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Ishibashi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-5877, Japan
| | - T Kawaguchi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - T Kawamura
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - W Kim
- Department of Physics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, South Korea
| | - Y Kobayashi
- Department of Informatics and Engineering, University of Electro-Communication, 1-5-1 Chofugaoka, Chohu, Tokyo 182-8585, Japan
| | - S Kojima
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - A Kusoglu
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler/Faith, 34134 Istanbul, Turkey
| | - R Lozeva
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - S Momiyama
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - I Mukul
- Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - M Niikura
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H Nishibata
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - T Nishizaka
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - A Odahara
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - Y Ohtomo
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - D Ralet
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - T Sato
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Sumikama
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Takeda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - L C Tao
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - D Tominaga
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - H Ueno
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Yamazaki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - X F Yang
- Instituut voor Kern-en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - J M Daugas
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Yajima S, Kajiwara K, Isozaki M, Kobayashi N, Ikeda R, Kobayashi T, Shinya T, Yamazaki H, Takahashi K. Estimation of RF power absorption and stray distribution at plasma breakdown based on the design of ITER ECH&CD equatorial launcher. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Delgado-Aparicio LF, VanMeter P, Barbui T, Chellai O, Wallace J, Yamazaki H, Kojima S, Almagari AF, Hurst NC, Chapman BE, McCollam KJ, Den Hartog DJ, Sarff JS, Reusch LM, Pablant N, Hill K, Bitter M, Ono M, Stratton B, Takase Y, Luethi B, Rissi M, Donath T, Hofer P, Pilet N. Multi-energy reconstructions, central electron temperature measurements, and early detection of the birth and growth of runaway electrons using a versatile soft x-ray pinhole camera at MST. Rev Sci Instrum 2021; 92:073502. [PMID: 34340413 DOI: 10.1063/5.0043672] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 04/26/2021] [Indexed: 06/13/2023]
Abstract
A multi-energy soft x-ray pinhole camera has been designed, built, and deployed at the Madison Symmetric Torus to aid the study of particle and thermal transport, as well as MHD stability physics. This novel imaging diagnostic technique employs a pixelated x-ray detector in which the lower energy threshold for photon detection can be adjusted independently on each pixel. The detector of choice is a PILATUS3 100 K with a 450 μm thick silicon sensor and nearly 100 000 pixels sensitive to photon energies between 1.6 and 30 keV. An ensemble of cubic spline smoothing functions has been applied to the line-integrated data for each time-frame and energy-range, obtaining a reduced standard-deviation when compared to that dominated by photon-noise. The multi-energy local emissivity profiles are obtained from a 1D matrix-based Abel-inversion procedure. Central values of Te can be obtained by modeling the slope of the continuum radiation from ratios of the inverted radial emissivity profiles over multiple energy ranges with no a priori assumptions of plasma profiles, magnetic field reconstruction constraints, high-density limitations, or need of shot-to-shot reproducibility. In tokamak plasmas, a novel application has recently been tested for early detection, 1D imaging, and study of the birth, exponential growth, and saturation of runaway electrons at energies comparable to 100 × Te,0; thus, early results are also presented.
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Affiliation(s)
| | - P VanMeter
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - T Barbui
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - O Chellai
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - J Wallace
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - H Yamazaki
- National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan
| | - S Kojima
- Kyushu University, Kasuga-kouen 6-1, Kasuga, Japan
| | - A F Almagari
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - N C Hurst
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - B E Chapman
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - K J McCollam
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - D J Den Hartog
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J S Sarff
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - L M Reusch
- Edgewood College, Madison, Wisconsin 53711, USA
| | - N Pablant
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - K Hill
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - M Bitter
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - M Ono
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - B Stratton
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - Y Takase
- The University of Tokyo, Kashiwa 277-8561, Japan
| | - B Luethi
- DECTRIS Ltd., 5405 Baden-Dättwil, Switzerland
| | - M Rissi
- DECTRIS Ltd., 5405 Baden-Dättwil, Switzerland
| | - T Donath
- DECTRIS Ltd., 5405 Baden-Dättwil, Switzerland
| | - P Hofer
- DECTRIS Ltd., 5405 Baden-Dättwil, Switzerland
| | - N Pilet
- DECTRIS Ltd., 5405 Baden-Dättwil, Switzerland
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Kogame T, Kamitani T, Yamazaki H, Ogawa Y, Fukuhara S, Kabashima K, Yamamoto Y. Longitudinal association between polypharmacy and development of pruritus: a Nationwide Cohort Study in a Japanese Population. J Eur Acad Dermatol Venereol 2021; 35:2059-2066. [PMID: 34077574 DOI: 10.1111/jdv.17443] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 05/20/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Although polypharmacy is known to cause side-effects due to drug-drug interactions, dermatological symptoms triggered by polypharmacy are not fully addressed. OBJECTIVE To investigate whether polypharmacy is associated with the risk of pruritus. METHOD A cohort study was performed to examine cross-sectional and longitudinal relationships between polypharmacy and pruritus in a general population. Data were collected from the Norm Study conducted in 2016 and 2017, which is a nationwide survey based on a self-administered questionnaire with Japanese representative participants aged 16-84 years. Presence of polypharmacy which was defined as concurrent use of ≥5 prescribed drugs. Primary outcomes were the presence of severe pruritus at baseline for the cross-sectional analysis and the development of severe pruritus after one year for the longitudinal analysis. Multivariable modified Poisson regression analyses were performed to estimate risk ratios (RRs) and 95% confidence intervals (95%CIs) with adjustment for potential confounders (age, gender, smoking habits, drinking habits, depressive symptoms, moderate activities based on IPAQ score and presence of 11 comorbid conditions including skin disease). RESULTS The study included 3126 participants (mean age, 48.7 years); nearly half (49.8%) were male. In all, 332 participants (10.3%) had polypharmacy in the cross-sectional analysis. Participants with polypharmacy were more likely to present with severe pruritus at baseline than those who were not using drugs (adjusted RR = 1.52 [95%CI 1.15-2.01, P = 0.003]). The longitudinal analysis (n = 1803) was limited to those without severe pruritus at baseline; participants with polypharmacy at baseline were more likely to develop severe pruritus after a one-year follow-up period than those not using drugs (adjusted RR = 1.46 [95%CI 1.14-1.87, P = 0.002]). CONCLUSION Polypharmacy was associated with the presence of pruritus at baseline and may predict the future risk of developing pruritus.
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Affiliation(s)
- T Kogame
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Kamitani
- Section of Clinical Epidemiology, Department of community medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Institute for Health Outcomes and Process Evaluation Research (iHope International), Kyoto, Japan
| | - H Yamazaki
- Section of Clinical Epidemiology, Department of community medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Institute for Health Outcomes and Process Evaluation Research (iHope International), Kyoto, Japan
| | - Y Ogawa
- Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S Fukuhara
- Section of Clinical Epidemiology, Department of community medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Center for Innovative Research for Communities and Clinical Excellence, Fukushima Medical University, Fukushima City, Japan
| | - K Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Y Yamamoto
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Institute for Health Outcomes and Process Evaluation Research (iHope International), Kyoto, Japan
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Sekine R, Hirata M, Ikezoe R, Jang S, Kubota Y, Kayano H, Sugata K, Aizawa T, Noguchi D, Kim D, Sugimoto Y, Matsuura R, Yamazaki H, Ichimura M, Yoshikawa M, Kohagura J, Nakashima Y, Ezumi N, Sakamoto M. Measurement of axial phase difference of density fluctuations owing to spontaneously excited waves by using microwave reflectometer on GAMMA 10/PDX. Rev Sci Instrum 2021; 92:053506. [PMID: 34243319 DOI: 10.1063/5.0043821] [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] [Received: 01/11/2021] [Accepted: 04/14/2021] [Indexed: 06/13/2023]
Abstract
In the GAMMA 10/PDX tandem mirror, plasma with strong ion-temperature anisotropy is produced by using the ion cyclotron range of frequency waves. This anisotropy of ion temperature causes several Alfvén-Ion-Cyclotron (AIC) waves to spontaneously excite in the frequency range just below the ion cyclotron frequency. In addition, difference-frequency (DF) waves are excited in the radial inner region of the plasma by wave-wave coupling among the AIC waves. The radial density profiles were measured at multi-axial positions using a frequency-modulation reflectometer with an axial array of microwave antennas, and an axial variation of the density was found to be significant. In addition, a relative phase difference of the DF wave between axially separated two points was first obtained by finely choosing the probing frequency of the reflectometers with a maximum coherence used as a measure, indicating that the DF wave is a propagating wave, while the pump AIC waves are standing waves in the axial region of measurement.
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Affiliation(s)
- R Sekine
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - M Hirata
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - R Ikezoe
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - S Jang
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Y Kubota
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - H Kayano
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - K Sugata
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - T Aizawa
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - D Noguchi
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - D Kim
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Y Sugimoto
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - R Matsuura
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - H Yamazaki
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - M Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - M Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - J Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - N Ezumi
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - M Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
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Isono K, Takahashi E, Miyoshi I, Tsuneto M, Hikosaka-Kuniishi M, Yamane T, Yamazaki H. Simultaneous Fluorescent Identification of Odontoblasts and Ameloblasts. J Dent Res 2020; 100:532-541. [PMID: 33289448 DOI: 10.1177/0022034520974576] [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] Open
Abstract
The tooth is mainly composed of dentin and enamel. Identification of dentin-producing odontoblasts and enamel-producing ameloblasts using reporter techniques is useful to study tooth development and regeneration with tissue engineering. Ameloblasts express Amelogenin, Ameloblastin, Enamelin, and Amelotin, whereas odontoblasts express Dentin sialophosphoprotein (Dspp) and Dentin matrix protein1 (Dmp1). Although there are several transgenic lines using promoter elements or bacterial artificial chromosomes (BACs) to label odontoblasts and ameloblasts, there is a possibility that the expression patterns vary from the endogenous genes. Here, we established 2 lines of mice where tdTomato was knocked into the second exon of X-chromosomal Amelogenin (Amelx), and green fluorescent protein (GFP) was knocked into the second exon of Dspp. tdTomato and GFP were highly expressed on secretory ameloblasts and secretory and fully differentiated odontoblasts, respectively. In addition, DSPP and AMELX were not produced in the dentin matrix and enamel matrix of DsppGFP/GFP and AmelxtdTomato male mice (as representative of AmelxtdTomato/Y hemizygous male mice), respectively. Moreover, micro-computed tomography analysis of AmelxtdTomato male mice revealed a notable reduction in enamel volume but increased dentin mineral density. DsppGFP/GFP mice had reduced dentin mineral density. To identify odontoblasts and ameloblasts from developing tooth, we examined the expression of mesenchymal cell surface molecules CD90, CD166 and epithelial cell surface molecules CD49f, Epcam1 with fluorescence on odontoblasts and ameloblasts in these mice. We found that GFP+ odontoblasts and tdTomato+ ameloblasts in tooth germ from 0.5-d-old DsppGFP/+ mice and AmelxtdTomato male mice were enriched in CD45-/Ter119-/Epcam1-/CD90+/Integrin α4+cell fractions and CD45-/Ter119-/Epcam1+/CD49f+/CD147+ cell fractions, respectively. By using antibodies against mesenchymal and epithelial cell surface molecules and fluorescence, we can easily distinguish odontoblasts from ameloblasts and isolate each cell for further studies. These mice would serve as useful models for tooth development and regeneration as well as provide concurrent observation for the differentiation processes of odontoblasts and ameloblasts in vivo and in vitro.
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Affiliation(s)
- K Isono
- Department of Stem Cells and Developmental Biology, Division of Fundamental Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - E Takahashi
- Support Unit for Animal Resources Development, Research Resources Division, RIKEN Center for Brain Science, Wako-shi, Saitama, Japan
| | - I Miyoshi
- Department of Laboratory Animal Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - M Tsuneto
- Division of Regenerative Medicine and Therapeutics, Department of Genetic Medicine and Regenerative Therapeutics, Tottori University Graduate School of Medical Science, Yonago, Tottori, Japan
| | - M Hikosaka-Kuniishi
- Department of Stem Cells and Developmental Biology, Division of Fundamental Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - T Yamane
- Department of Stem Cells and Developmental Biology, Division of Fundamental Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - H Yamazaki
- Department of Stem Cells and Developmental Biology, Division of Fundamental Medicine, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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Golembesky A, Kotowsky N, Gao R, Yamazaki H. PRO17 Healthcare Resource Utilization (HCRU) in Patients with Palmoplantar Pustulosis (PPP) in JAPAN: A Claims Database Study. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.512] [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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Golembesky A, Kotowsky N, Gao R, Yamazaki H. PRO16 Healthcare Resource Utilization (HCRU) in Patients with Generalized Pustular Psoriasis (GPP) in JAPAN: A Claims Database Study. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.511] [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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Okubo Y, Sakai M, Yamazaki H, Sugawara Y, Samejima J, Yoshioka E, Suzuki M, Washimi K, Kawachi K, Hayashi H, Ito H, Iwasaki H, Yokose T. Histopathological study of carcinoma showing thymus-like differentiation (CASTLE). Malays J Pathol 2020; 42:259-265. [PMID: 32860379] [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: 06/11/2023]
Abstract
INTRODUCTION Carcinoma showing thymus-like differentiation (CASTLE) is a rare tumour that mainly arises from the thyroid gland, or occasionally, from the head and neck. Although the 10-year survival rate of patients with CASTLE is approximately 80%, local recurrence and distant metastasis are observed in some cases. A recent systematic review for CASTLE indicated that the prognostic factors are treatment-dependent, and postoperative radiotherapy significantly improves patient survival. CASE REPORT Herein, we describe and compare three cases of CASTLE, including a case with distant metastasis despite administering postoperative chemotherapy. Thus, the mechanisms underlying metastasis of CASTLE are unclear. This case study helps to elucidate the histopathological risk factors of metastasis in CASTLE. DISCUSSION We found that prominent lymphovascular invasion and higher proliferative activities might be risk factors of metastasis in CASTLE. In addition, we have summarised the cytological, morphological, and immunohistochemical features of CASTLE for an accurate diagnosis.
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Affiliation(s)
- Yoichiro Okubo
- Kanagawa Cancer Center, Department of Pathology, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan.
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Tomida N, Muramatsu N, Niiyama M, Ahn JK, Chang WC, Chen JY, Chu ML, Daté S, Gogami T, Goto H, Hamano H, Hashimoto T, He QH, Hicks K, Hiraiwa T, Honda Y, Hotta T, Ikuno H, Inoue Y, Ishikawa T, Jaegle I, Jo JM, Kasamatsu Y, Katsuragawa H, Kido S, Kon Y, Maruyama T, Masumoto S, Matsumura Y, Miyabe M, Mizutani K, Nagahiro H, Nakamura T, Nakano T, Nam T, Ngan TNT, Nozawa Y, Ohashi Y, Ohnishi H, Ohta T, Ozawa K, Rangacharyulu C, Ryu SY, Sada Y, Sasagawa M, Shibukawa T, Shimizu H, Shirai R, Shiraishi K, Strokovsky EA, Sugaya Y, Sumihama M, Suzuki S, Tanaka S, Tokiyasu A, Tsuchikawa Y, Ueda T, Yamazaki H, Yamazaki R, Yanai Y, Yorita T, Yoshida C, Yosoi M. Search for η^{'} Bound Nuclei in the ^{12}C(γ,p) Reaction with Simultaneous Detection of Decay Products. Phys Rev Lett 2020; 124:202501. [PMID: 32501086 DOI: 10.1103/physrevlett.124.202501] [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] [Received: 12/12/2019] [Revised: 02/11/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
We measured missing mass spectrum of the ^{12}C(γ,p) reaction for the first time in coincidence with potential decay products from η^{'} bound nuclei. We tagged an (η+p) pair associated with the η^{'}N→ηN process in a nucleus. After applying kinematical selections to reduce backgrounds, no signal events were observed in the bound-state region. An upper limit of the signal cross section in the opening angle cosθ_{lab}^{ηp}<-0.9 was obtained to be 2.2 nb/sr at the 90% confidence level. It is compared with theoretical cross sections, whose normalization ambiguity is suppressed by measuring a quasifree η^{'} production rate. Our results indicate a small branching fraction of the η^{'}N→ηN process and/or a shallow η^{'}-nucleus potential.
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Affiliation(s)
- N Tomida
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Muramatsu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Niiyama
- Department of Physics, Kyoto Sangyo University, Kyoto 603-8555, Japan
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - W C Chang
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - J Y Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - M L Chu
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - S Daté
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Japan Synchrotron Radiation Research Institute (SPring-8), Sayo, Hyogo 679-5198, Japan
| | - T Gogami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Goto
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Hamano
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Hashimoto
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Q H He
- Department of Nuclear Science & Engineering, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - K Hicks
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - T Hiraiwa
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Y Honda
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Hotta
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Ikuno
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Y Inoue
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Ishikawa
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - I Jaegle
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J M Jo
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - Y Kasamatsu
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Katsuragawa
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - S Kido
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Kon
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Institute for Radiation Sciences, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Maruyama
- College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa 252-8510, Japan
| | - S Masumoto
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - Y Matsumura
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - M Miyabe
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - K Mizutani
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Nagahiro
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Nara Women's University, Nara 630-8506, Japan
| | - T Nakamura
- Department of Education, Gifu University, Gifu 501-1193, Japan
| | - T Nakano
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Nam
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T N T Ngan
- Nuclear Physics Department, University of Science, Vietnam National University, Ho Chi Minh City 72711, Vietnam
| | - Y Nozawa
- Department of Radiology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Y Ohashi
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Ohnishi
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Ohta
- Department of Radiology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - K Ozawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - C Rangacharyulu
- Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon SK S7N 5E2, Canada
| | - S Y Ryu
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Y Sada
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Sasagawa
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Shibukawa
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - H Shimizu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - R Shirai
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - K Shiraishi
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - E A Strokovsky
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Laboratory of High Energy Physics, Joint Institute for Nuclear Research, Dubna, Moscow Region 142281, Russia
| | - Y Sugaya
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - M Sumihama
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Education, Gifu University, Gifu 501-1193, Japan
| | - S Suzuki
- Japan Synchrotron Radiation Research Institute (SPring-8), Sayo, Hyogo 679-5198, Japan
| | - S Tanaka
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - A Tokiyasu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Tsuchikawa
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T Ueda
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - H Yamazaki
- Radiation Science Center, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki 319-1195, Japan
| | - R Yamazaki
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Yanai
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Yorita
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - C Yoshida
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Yosoi
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
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Boulay F, Simpson GS, Ichikawa Y, Kisyov S, Bucurescu D, Takamine A, Ahn DS, Asahi K, Baba H, Balabanski DL, Egami T, Fujita T, Fukuda N, Funayama C, Furukawa T, Georgiev G, Gladkov A, Hass M, Imamura K, Inabe N, Ishibashi Y, Kawaguchi T, Kawamura T, Kim W, Kobayashi Y, Kojima S, Kusoglu A, Lozeva R, Momiyama S, Mukul I, Niikura M, Nishibata H, Nishizaka T, Odahara A, Ohtomo Y, Ralet D, Sato T, Shimizu Y, Sumikama T, Suzuki H, Takeda H, Tao LC, Togano Y, Tominaga D, Ueno H, Yamazaki H, Yang XF, Daugas JM. g Factor of the ^{99}Zr (7/2^{+}) Isomer: Monopole Evolution in the Shape-Coexisting Region. Phys Rev Lett 2020; 124:112501. [PMID: 32242689 DOI: 10.1103/physrevlett.124.112501] [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] [Received: 08/22/2019] [Revised: 11/28/2019] [Accepted: 12/17/2019] [Indexed: 06/11/2023]
Abstract
The gyromagnetic factor of the low-lying E=251.96(9) keV isomeric state of the nucleus ^{99}Zr was measured using the time-dependent perturbed angular distribution technique. This level is assigned a spin and parity of J^{π}=7/2^{+}, with a half-life of T_{1/2}=336(5) ns. The isomer was produced and spin aligned via the abrasion-fission of a ^{238}U primary beam at RIKEN RIBF. A magnetic moment |μ|=2.31(14)μ_{N} was deduced showing that this isomer is not single particle in nature. A comparison of the experimental values with interacting boson-fermion model IBFM-1 results shows that this state is strongly mixed with a main νd_{5/2} composition. Furthermore, it was found that monopole single-particle evolution changes significantly with the appearance of collective modes, likely due to type-II shell evolution.
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Affiliation(s)
- F Boulay
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- GANIL, CEA/DSM-CNRS/IN2P3, BP55027, 14076 Caen cedex 5, France
| | - G S Simpson
- LPSC, CNRS/IN2P3, Université Joseph Fourier Grenoble 1, INPG, 38026 Grenoble Cedex, France
| | - Y Ichikawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Kisyov
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - D Bucurescu
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - A Takamine
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D S Ahn
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Asahi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - H Baba
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D L Balabanski
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP), Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - T Egami
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - T Fujita
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - N Fukuda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - C Funayama
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - T Furukawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - G Georgiev
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - A Gladkov
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, South Korea
| | - M Hass
- Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - K Imamura
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Meiji University, 1-1-1 Higashi-Mita, Tama, Kawasaki, Kanagawa 214-8571, Japan
| | - N Inabe
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Ishibashi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-5877, Japan
| | - T Kawaguchi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - T Kawamura
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - W Kim
- Department of Physics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, South Korea
| | - Y Kobayashi
- Department of Informatics and Engineering, University of Electro-Communication, 1-5-1 Chofugaoka, Chohu, Tokyo 182-8585, Japan
| | - S Kojima
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - A Kusoglu
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler/Faith, 34134 Istanbul, Turkey
| | - R Lozeva
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - S Momiyama
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - I Mukul
- Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - M Niikura
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H Nishibata
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - T Nishizaka
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - A Odahara
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - Y Ohtomo
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - D Ralet
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - T Sato
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Sumikama
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Takeda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - L C Tao
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - D Tominaga
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - H Ueno
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Yamazaki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - X F Yang
- Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - J M Daugas
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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14
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Watabe S, Tanahashi Y, Hirahara M, Yamazaki H, Takahashi K, Mohamed EA, Tsubonouchi Y, Zahran ZN, Saito K, Yui T, Yagi M. Critical Hammett Electron-Donating Ability of Substituent Groups for Efficient Water Oxidation Catalysis by Mononuclear Ruthenium Aquo Complexes. Inorg Chem 2019; 58:12716-12723. [PMID: 31549813 DOI: 10.1021/acs.inorgchem.9b01623] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[Ru(Rtpy)(bpy)(H2O)]2+ (1R; bpy = 2,2'-bipyridine, and Rtpy = 2,2':6',2″-terpyridine derivatives) complexes with a variety of 4'-substituent groups on Rtpy were synthesized and characterized to reveal the effects of substituents on their structures, physicochemical properties, and catalytic activities for water oxidation. The geometric structures of 1R are not considerably influenced by the electron-donating ability of the 4'-substituent groups on Rtpy. Similar multistep proton-coupled electron transfer reactions were observed for 1R, and the redox potentials for each oxidation step tended to decrease with an increase in the electron-donating ability of the substituent, which is explained by the increased electron density on the Ru center by electron-donating groups, stabilizing the positive charge that builds up upon oxidation. This is consistent with the red-shift of the absorption bands around 480 nm assigned to the metal-to-ligand charge transfer transition for 1R due to the increased d orbital energy level of the Ru center. The turnover frequency (kO2) of 1R for water oxidation catalysis, however, depended greatly on the Rtpy ligands, varying from 0.05 × 10-2 to 44 × 10-2 s-1 (as the highest kO2 was observed for R = ethoxy) by a factor of 880. A critical electron-donating ability of the 4'-substituent groups with a narrow range of Hammett constants (σp = -0.27 to -0.24) found for the highest kO2 values is valuable for understanding the great difficulty in the search for efficient water oxidation catalysts. On another front, the kO2 values increased with a decrease in the redox potentials of RuIV═O/RuV═O for 1R, indicating that the potential of formation of RuV═O species for 1R is crucial for water oxidation catalysis under the employed conditions.
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Affiliation(s)
- Shunsuke Watabe
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Yuki Tanahashi
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Masanari Hirahara
- Department of Applied Chemistry , National Defense Academy of Japan , Hashirimizu 1-10-20 , Yokosuka , Kanagawa 239-8686 , Japan
| | - Hirosato Yamazaki
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Kosuke Takahashi
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Eman A Mohamed
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Yuta Tsubonouchi
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Zaki N Zahran
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Kenji Saito
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Tatsuto Yui
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
| | - Masayuki Yagi
- Department of Materials Science and Technology, Faculty of Engineering , Niigata University , 8050 Ikarashi-2 , Niigata 950-2181 , Japan
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15
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Sumilat DA, Oda T, Wewengkang DS, Namikoshi M, Yamazaki H. Inhibition of interleukin-8 production in interleukin-1 stimulated human monocytic THP-1 cells by N,N didesmethylgrossularine-1 obtained from an Ascidian Polycarpa aurata collected in North Sulawesi. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1757-899x/567/1/012021] [Citation(s) in RCA: 1] [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: 11/12/2022]
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Abstract
The present study was conducted to investigate the role of proteolysis by matrix metalloproteinase 20 (MMP20) in regulating the initial formation of the enamel mineral structure during the secretory stage of amelogenesis, utilizing Mmp20-null mice that lack this essential protease. Ultrathin sagittal sections of maxillary incisors from 8-wk-old wild-type (WT), Mmp20-null (KO), and heterozygous (HET) littermates were prepared. Secretory-stage enamel ultrastructures from each genotype as a function of development were compared using transmission electron microscopy, selected area electron diffraction, and Raman microspectroscopy. Characteristic rod structures observed in WT enamel exhibited amorphous features in newly deposited enamel, which subsequently transformed into apatite-like crystals in older enamel. Surprisingly, initial mineral formation in KO enamel was found to proceed in the same manner as in the WT. However, soon after a rod structure began to form, large plate-like crystals appeared randomly within the developing KO enamel layer. As development continued, observed plate-like crystals became dominant and obscured the appearance of the enamel rod structure. Upon formation of these plate-like crystals, the KO enamel layer stopped growing in thickness, unlike WT and HET enamel layers that continued to grow at the same rate. Raman results indicated that Mmp20-KO enamel contains a significant portion of octacalcium phosphate, unlike WT enamel. Although normal in all other respects, large, randomly dispersed mineral crystals were observed in secretory HET enamel, although to a lesser extent than that seen in KO enamel, indicating that the level of MMP20 expression has a proportional effect on suppressing aberrant mineral formation. In conclusion, we found that proteolysis of extracellular enamel matrix proteins by MMP20 is not required for the initial development of the enamel rod structure during the early secretory stage of amelogenesis. Proteolysis by MMP20, however, is essential for the prevention of abnormal crystal formation during amelogenesis.
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Affiliation(s)
- H Yamazaki
- 1 The Forsyth Institute, Cambridge, MA, USA.,2 Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - B Tran
- 3 Simmons College, Boston, MA, USA
| | - E Beniash
- 4 Center for Craniofacial Regeneration, Department of Oral Biology, University of Pittsburgh School of Dental Medicine, Pittsburgh, PA, USA
| | - S Y Kwak
- 1 The Forsyth Institute, Cambridge, MA, USA.,2 Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - H C Margolis
- 1 The Forsyth Institute, Cambridge, MA, USA.,2 Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
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17
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Yamazaki H, Delgado-Aparicio LF, Groebner R, Grierson B, Hill K, Pablant N, Stratton B, Efthimion P, Ejiri A, Takase Y, Ono M. A computational tool for simulation and design of tangential multi-energy soft x-ray pin-hole cameras for tokamak plasmas. Rev Sci Instrum 2018; 89:10G120. [PMID: 30399783 DOI: 10.1063/1.5038788] [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] [Received: 05/05/2018] [Accepted: 07/12/2018] [Indexed: 06/08/2023]
Abstract
A new tool has been developed to calculate the spectral, spatial, and temporal responses of multi-energy soft x-ray (ME-SXR) pinhole cameras for arbitrary plasma densities (n e,D), temperature (T e), and impurity densities (n Z). ME-SXR imaging provides a unique opportunity for obtaining important plasma properties (e.g., T e, n Z, and Z eff) by measuring both continuum and line emission in multiple energy ranges. This technique employs a pixelated x-ray detector in which the lower energy threshold for photon detection can be adjusted independently. Simulations assuming a tangential geometry and DIII-D-like plasmas (e.g., n e,0 ≈ 8 × 1019 m-3 and T e,0 ≈ 2.8 keV) for various impurity (e.g., C, O, Ar, Ni, and Mo) density profiles have been performed. The computed brightnesses range from few 102 counts pixel-1 ms-1 depending on the cut-off energy thresholds, while the maximum allowable count rate is 104 counts pixel-1 ms-1. The typical spatial resolution in the mid-plane is ≈0.5 cm with a photon-energy resolution of 500 eV at a 500 Hz frame rate.
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Affiliation(s)
- H Yamazaki
- The University of Tokyo, Kashiwa 277-8561, Japan
| | | | - R Groebner
- General Atomics, San Diego, California 92121, USA
| | - B Grierson
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - K Hill
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - N Pablant
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - B Stratton
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - P Efthimion
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - A Ejiri
- The University of Tokyo, Kashiwa 277-8561, Japan
| | - Y Takase
- The University of Tokyo, Kashiwa 277-8561, Japan
| | - M Ono
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
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18
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Delgado-Aparicio LF, Wallace J, Yamazaki H, VanMeter P, Reusch L, Nornberg M, Almagari A, Maddox J, Luethi B, Rissi M, Donath T, Den Hartog D, Sarff J, Weix P, Goetz J, Pablant N, Hill K, Stratton B, Efthimion P, Takase Y, Ejiri A, Ono M. Simulation, design, and first test of a multi-energy soft x-ray (SXR) pinhole camera in the Madison Symmetric Torus (MST). Rev Sci Instrum 2018; 89:10G116. [PMID: 30399822 DOI: 10.1063/1.5038798] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
A multi-energy soft x-ray pinhole camera has been designed and built for the Madison Symmetric Torus reversed field pinch to aid the study of particle and thermal-transport, as well as MHD stability physics. This novel imaging diagnostic technique combines the best features from both pulse-height-analysis and multi-foil methods employing a PILATUS3 x-ray detector in which the lower energy threshold for photon detection can be adjusted independently on each pixel. Further improvements implemented on the new cooled systems allow a maximum count rate of 10 MHz per pixel and sensitivity to the strong Al and Ar emission between 1.5 and 4 keV. The local x-ray emissivity will be measured in multiple energy ranges simultaneously, from which it is possible to infer 1D and 2D simultaneous profile measurements of core electron temperature and impurity density profiles with no a priori assumptions of plasma profiles, magnetic field reconstruction constraints, high-density limitations, or need of shot-to-shot reproducibility. The expected time and space resolutions will be 2 ms and <1 cm, respectively.
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Affiliation(s)
| | - J Wallace
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - H Yamazaki
- The University of Tokyo, Kashiwa 277-8561, Japan
| | - P VanMeter
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - L Reusch
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - M Nornberg
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - A Almagari
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Maddox
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - B Luethi
- DECTRIS Ltd., 5405 Baden-Dattwil, Switzerland
| | - M Rissi
- DECTRIS Ltd., 5405 Baden-Dattwil, Switzerland
| | - T Donath
- DECTRIS Ltd., 5405 Baden-Dattwil, Switzerland
| | - D Den Hartog
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Sarff
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - P Weix
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Goetz
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - N Pablant
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - K Hill
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - B Stratton
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - P Efthimion
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - Y Takase
- The University of Tokyo, Kashiwa 277-8561, Japan
| | - A Ejiri
- The University of Tokyo, Kashiwa 277-8561, Japan
| | - M Ono
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
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Tanoue K, Jung SM, Yamamoto N, Yamazaki H. Neutralization of the Local Negative Charge Carried by Glycoprotein (GP)-Ib in Ristocetin-Induced Platelet Agglutination. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1661025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryPretreatment of platelets with chymotrypsin dose-dependently decreased glycoprotein (GP)-Ib amounts as measured by SDS- PAGE, ristocetin-induced agglutination and platelet electrophoretic mobility (EPM). Decrease in platelet EPM in response to 0.75 mg/ml ristocetin alone were 7.0 ± 2.3 and 6.8 ± 4.3% (M ± S.E., n = 6) for control and chymotrypsin-treated platelets, respectively (p >0.2). Von Willebrand factor (vWF) alone had no effect on platelet EPM. However, in the presence of 0.75 mg/ml ristocetin, added vWF (2.9 μg/ml) caused a further 6.3 ± 3.8% decrease in control platelet EPM, but caused no significant decrease in the enzyme-treated platelets (p >0.05). In the presence of 0.3 mg/ml ristocetin, added vWF (2.9-14.5 μg/ml) caused a small but significant decrease in control platelet EPM, but caused no significant decrease in the enzyme-treated platelets.These findings suggested that the GP-Ib carrying negative charge decreased by binding of vWF might facilitate a mutual approach of the GP-Ib molecules and bridge formation by vWF between different platelets.
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Affiliation(s)
- K Tanoue
- The Division of Cardiovascular Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - S M Jung
- The Division of Cardiovascular Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - N Yamamoto
- The Division of Cardiovascular Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - H Yamazaki
- The Division of Cardiovascular Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
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Yamazaki H, Kobayashi I, Shimamoto T. Enhancement of ADP-Induced Platelet Aggregation by Exercise Test in Coronary Patients and Its Prevention by Pyridinolcarbamate. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1654253] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryADP-induced platelet aggregation in citrated platelet rich plasma (CPRP) was examined using a photoelectric system. To exclude a variation in intensities of platelet aggregation in repeated measurements and to compare intensities of different samples, the maximum deflection of the optical density of CPRP induced by adding ADP solution was divided by a deflection of the optical density of the platelet free plasma and its value, shown as a percentage, was defined as an intensity of ADP-induced platelet aggregation. In this method, the linearity was found in the dose response curve of the platelet aggregation induced by 10−6, 3 × 10−6 and 10−5 molar of ADP with statistical significance. These variation coefficients were less than 5% in the responses induced by the higher doses of ADP. Changes in the ADP-induced platelet aggregation after a Master’s two step test were examined in 13 patients with angina pectoris 3 h after oral administration of placebo or 1 g of pyridinolcarbamate. Under placebo pretreatment, an enhancement of platelet aggregation was observed 1 min after the exercise test with statistical significance (P < 0.01 ∼ 0.05). In the cases of the same subjects pretreated with pyridinolcarbamate, such change was not observed at any time. Using a parallel line assay, an inhibitory effect of pyridinolcarbamate against enhancement of ADP-induced platelet aggregation after the exercise was also recognized with statistical significance (P < 0.01). In the 10 healthy volunteers, there was no statistically significant enhancement of ADP-induced platelet aggregation using any concentration of ADP 1 to 10 min after the exercise test.
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21
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Yamazaki H, Odakura T, Takeuchi K, Sano T. Adhesive Platelet Count and Blood Coagulability in Myocardial Infarction and Cerebral Thrombosis. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1654254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryIn 382 patients, aged 21 to 76 years, including 39 healthy volunteers, a platelet count by Olef’s method, an adhesive platelet count by Moolten-Vroman’s method, prothrombin activity due to one-stage prothrombin time and calcium clotting time were measured. In 39 cases of myocardial infarction and 40 cases of cerebral thrombosis, both in acute stage, a marked decrease in the adhesive platelet count and adhesive index and an increase of prothrombin activity were observed with statistical significance compared to the healthy group (P < 0.01). In the recovery stage of myocardial infarction, cerebral thrombosis and other diseases, except for malignant tumors, acute infectious diseases, diabetes mellitus and blood or liver diseases, the above observations were absent or reduced. In the case of thrombosis, a negative correlation was seen between the adhesive platelet count and prothrombin activity (r — —0.238, P < 0.01). There is no correlation between the changes in platelet adhesiveness or blood coagulability and total cholesterol level in serum.
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22
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Yamazaki H, Sano T, Odakura T, Takeuchi K, Matsumura T, Hosaki S, Shimamoto T. Appearance of Thrombogenic Tendency Induced by Adrenaline and Its Prevention by β-Adrenergic Blocking Agent, Nialamide and Pyridinolcarbamate. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1653673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryIn 52 men and 33 women, the total, adhesive and nonadhesive platelet counts, onestage prothrombin time, euglobulinlysis time, and plasma nonesterified fatty acid were measured before and after an intravenous injection with 0.1 μg/kg of adrenaline or 1-noradrenaline. Three hours before the injection, placebo, 30 mg of phenoxybenzamine, 300 mg of pronethalol, 100 mg of nialamide or 100 mg of pyridinolcarbamate was administered orally under the double blind technique. Five minutes after the injection with adrenaline in 15 cases pretreated with placebo, a decrease in adhesive platelet count, and a shortening of one-stage prothrombin time and euglobulin lysis time were observed with statistical significance (P ˂ 0.01 ∼ 0.05). These changes were not observed in 15 cases injected with saline or noradrenaline. The changes were not observed in 10 cases pretreated with pronethalol, but were observed in 10 cases pretreated with phenoxybenzamine. So the effect of adrenaline may be due to stimulation of ß-adrenergic receptor sites. Meanwhile, the decrease in adhesive platelet count and the enhancement of blood coagulability were prevented by nialamide and pyridinolcarbamate, while the enhancement of fibrinolysis was not. The preventive effect of nialamide was less than that of pyridinolcarbamate. Phenoxybenzamine and nialamide prevented an increase in systolic blood pressure induced by adrenaline, and pronethalol prevented tachycardia by adrenaline, while pyridinolcarbamate did not affect these changes. Changes in plasma nonesterified fatty acid showed no relationship to the above hematological changes.
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Yamazaki H, Murase H, Ijiri H, Shimamoto T. The Appearance and Destruction of Platelet-Clumping Substance in Serum Added with Trypsin. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1654073] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryNo platelet-clumping activity was detected in the serum collected from 10 rabbits. After incubation of the alkalinized serum for 2 to 4 min at 37° C with 1.6 or 3.2 mg/ml of trypsin, platelet-clumping activity was observed in all samples. The strongest response was observed in the serum incubated for 4 min with 3.2 mg/ml of trypsin. After incubation for over 8 min, the clumping activity decreased gradually. At any incubation time, the serum without trypsin or with 0.4 or 6.4 mg/ml of trypsin showed no clumping activity. After the above measurements of the activity, 100 u/ml of heparin was added to the serum and its pH value was adjusted to 5.6. In the serum without trypsin the clumping activity appeared. However, in the active serum with trypsin, the activity remained the same or decreased. The serum acidified to pH 5.6 with heparin, which showed platelet-clumping activity, was incubated at 37° C with 1.6, 3.2 or 6.4 mg/ml of trypsin. After incubation of the serum with 3.2 mg/ml of trypsin for 16 min, the activity was markedly reduced. After incubation with 6.4 mg/ml of trypsin for 2 min, the activity disappeared. After incubation with trypsin, the clumping activity was observed in BaSO4-adsorbed serum but was not observed in serum heated at 56° C for 1 min nor in serum to which EDTA was added in a final concentration of 0.1%. These results suggest that the precursor of the platelet-clumping substance was activated by trypsin, and the platelet-clumping substance and/or its precursor was destroyed by trypsin.
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Yamazaki H, Kurai A, Shimamoto T. Preventive Effect of Pyridinolcarbamate on Thrombohemorrhagic Phenomenon and Hemorrhagic Necrosis. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1651335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
SummaryForty two rabbits were injected intravenously with 5 ml/kg of 0.5% agar solution or 100 μg/kg of bacterial endotoxin derived from Escherichia coli. After 1 min 0.1 ml of 500 μg/ml of adrenaline was injected intradermally in abdominal skin of each rabbit. After 24 hrs hemorrhage in adrenaline-injected regions was observed in 28 of 38 regions in abdominal skin of rabbits treated with agar and in 11 of 14 regions of rabbits treated with endotoxin. Both the hemorrhages were similarly reduced with the pretreatment of 40 μg of pyridinolcarbamate given locally with statistical significance (P < 0.01 and 0.05).
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Matsui N, Nodera H, Kuzume D, Iwasa N, Unai Y, Sakai W, Miyazaki Y, Yamazaki H, Osaki Y, Mori A, Furukawa T, Tsukamoto-Miyashiro A, Shimatani Y, Yamasaki M, Izumi Y, Kusunoki S, Arisawa K, Kaji R. Guillain−Barré syndrome in a local area in Japan, 2006-2015: an epidemiological and clinical study of 108 patients. Eur J Neurol 2018; 25:718-724. [DOI: 10.1111/ene.13569] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 01/08/2018] [Indexed: 11/30/2022]
Affiliation(s)
- N. Matsui
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - H. Nodera
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - D. Kuzume
- Department of Neurology; Chikamori Hospital; Kochi Japan
| | - N. Iwasa
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - Y. Unai
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - W. Sakai
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - Y. Miyazaki
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - H. Yamazaki
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - Y. Osaki
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - A. Mori
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - T. Furukawa
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - A. Tsukamoto-Miyashiro
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - Y. Shimatani
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - M. Yamasaki
- Department of Neurology; Chikamori Hospital; Kochi Japan
| | - Y. Izumi
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
| | - S. Kusunoki
- Department of Neurology; Kindai University; Faculty of Medicine; Osaka Japan
| | - K. Arisawa
- Department of Preventive Medicine; Institute of Biomedical Sciences; Tokushima University Graduate School; Tokushima Japan
| | - R. Kaji
- Department of Clinical Neuroscience; Graduate School of Biomedical Sciences; Tokushima University; Tokushima Japan
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Takamatsu N, Nodera H, Mori A, Yamazaki H, Izumi Y, Kaji R. Angle-dependent alteration of muscle echo-densities to effectively diagnose myopathic conditions. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3097] [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: 10/18/2022]
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27
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Mezaki N, Miura T, Ogaki K, Eriguchi M, Mizuno Y, Komatsu K, Yamazaki H, Ono N, Kawajiri S, Yamasaki R, Nozaki H, Kasuga K, Okuma Y, Kira J, Hara H, Onodera O, Ikeuchi T. LMNB1-related adult-onset autosomal dominant leukodystrophy: Genetic and clinical studies of four Japanese families. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3499] [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: 10/18/2022]
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28
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Hanada K, Matsui N, Nodera H, Kuzume D, Sato K, Iwasa N, Unai Y, Sakai W, Miyazaki Y, Yamazaki H, Osaki Y, Furukawa T, Yamasaki M, Izumi Y, Kusunoki S, Arisawa K, Kaji R. Guillain-Barré syndrome in a local area in Japan, 2006-2015: An epidemiological and clinical study of 108 patients. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1057] [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: 10/18/2022]
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29
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Yamazaki H, Takamatsu N, Nodera H, Kawarai T, Izumi Y, Kaji R. Distinguishing features of amyloid polyneuropathy on nerve ultrasound. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3102] [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: 10/18/2022]
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30
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Yamamoto A, Imai K, Hamanaka M, Itsukage M, Yamazaki H, Tsuto K, Ioku T. Clinical features of the patients with acute encephalitis/encephalopathy receiving immunotherapy before definite diagnosis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2735] [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: 10/18/2022]
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31
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Imai K, Hamanaka M, Yamazaki H, Itsukage M, Yamamoto A, Tsuto K, Ioku T, Yamada T, Nakamura T, Takezawa H, Tokuda N. Differences in percutaneous transluminal cerebral balloon angioplasty for rescue and secondary prevention in patients with acute ischemic stroke. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3678] [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: 10/18/2022]
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32
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Hamanaka M, Imai K, Yamazaki H, Itsukage M, Tsuto K, Yamamoto A, Ioku T, Yamada T, Tokuda N, Nakamura T, Urata Y. Correlation of histopathology of thrombi with clinical features in acute ischemic stroke. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3647] [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: 11/29/2022]
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33
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Osaki Y, Nodera H, Yamazaki H, Unai Y, Takamatsu N, Izumi Y, Kaji R. Ulnar nerve demyelination within the forearm segment in diabetic patients. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3106] [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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34
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Uno Y, Osada N, Sakurai S, Shimozawa N, Iwata T, Ikeo K, Yamazaki H. Development of genotyping method for functionally relevant variants of cytochromes P450 in cynomolgus macaques. J Vet Pharmacol Ther 2017; 41:e30-e34. [PMID: 28752932 DOI: 10.1111/jvp.12443] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 04/18/2017] [Accepted: 07/03/2017] [Indexed: 02/02/2023]
Abstract
In cynomolgus macaques (Macaca fascicularis), widely used in drug metabolism studies, CYP2C9, CYP2C76, CYP2D6, CYP3A4, and CYP3A5, important drug-metabolizing enzymes, are abundantly expressed in liver and metabolize cytochrome P450 substrates. CYP2C9 (c.334A>C), CYP2C76 (c.449TG>A), CYP2D6 (c.891A>G), CYP3A4 (IVS3 + 1G>del), and CYP3A5 (c.625A>T) substantially influence metabolic activity of enzymes, and thus are important variants in drug metabolism studies. In this study, a real-time PCR method was developed for genotyping these variants. The validity of the methods was verified by genotyping two wild type, two heterozygous, and two homozygous DNAs and was used to genotype 41 cynomolgus macaques (from Cambodia, Indonesia, the Philippines, or Vietnam) for the five variants, along with another important variant CYP2C19 (c.308C>T). The CYP2C9 and CYP2C19 variants were found only in Cambodian and Vietnamese animals, while the CYP2C76 and CYP2D6 variants were found only in Indonesian and Philippine animals. The CYP3A4 and CYP3A5 variants were not found in any of the animals analyzed. Mauritian animals, genotyped using next-generation sequencing data for comparison, possessed the CYP2C19 and CYP2D6 variants, but not the other variants. These results indicated differences in prevalence of these important variants among animal groups. Therefore, the genotyping tool developed is useful for drug metabolism studies using cynomolgus macaques.
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Affiliation(s)
- Y Uno
- Pharmacokinetics and Bioanalysis Center, Shin Nippon Biomedical Laboratories, Ltd., Kainan, Japan
| | - N Osada
- Graduate School of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Japan
| | - S Sakurai
- Graduate School of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Japan
| | - N Shimozawa
- Tsukuba Primate Research Center, National Institutes of Biomedical Innovation, Health and Nutrition, Tsukuba, Japan
| | - T Iwata
- Division of Molecular and Cellular Biology, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - K Ikeo
- National Institute of Genetics, Mishima, Japan
| | - H Yamazaki
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo, Japan
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Yamasaki H, Sakabe S, Xiao Q, Danbara M, Zhang J, Yamazaki H. DISTRIBUTION OF THE SEMIHEALTH CONDITION AMONG COMMUNITY-DWELLING ELDERLY IN JAPAN. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4118] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H. Yamasaki
- Faculty of Health Promotional Sciences, Tokoha University, Hamamatsu, Shizuoka, Japan,
| | - S. Sakabe
- Soka University, Hachioji, Tokyo, Japan,
| | - Q. Xiao
- Care Service Inc., Ota City, Tokyo, Japan,
| | | | - J. Zhang
- Nanjing Normal University, Nanjing, China,
| | - H. Yamazaki
- Mito Girls’ High School, Mito, Ibaraki, Japan
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Kawai M, Akino N, Ebisawa N, Grisham L, Hanada M, Honda A, Inoue T, Kazawa M, Kikuchi K, Kuriyama M, Kusanagi N, Mogaki K, Noto K, Ohga T, Ooshima K, Tanai Y, Umeda N, Usui K, Yamamoto T, Yamazaki H, Watanabe K. Progress of Negative Ion Source Improvement in N-NBI for JT-60U. Fusion Science and Technology 2017. [DOI: 10.13182/fst03-a387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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)
- M. Kawai
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - N. Akino
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - N. Ebisawa
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - L. Grisham
- Princeton Plasma Physics Laboratory, Princeton, NJ, 08543, U.S.A
| | - M. Hanada
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - A. Honda
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - T. Inoue
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - M. Kazawa
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Kikuchi
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - M. Kuriyama
- Vienna Office, Japan Atomic Energy Research Institute, Baumannstrasse 4-2-13, A1030, Wien, Austria 81-29-270-7453
| | - N. Kusanagi
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Mogaki
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Noto
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - T. Ohga
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Ooshima
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - Y. Tanai
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - N. Umeda
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Usui
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - T. Yamamoto
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - H. Yamazaki
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Watanabe
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
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Akiyama S, Mochizuki H, Yamazaki H, Yokoi T, Tatsumi T, Kondo J. The effective silylation of external surface on H-ZSM5 with cyclic siloxane for the catalytic cracking of naphtha. Molecular Catalysis 2017. [DOI: 10.1016/j.mcat.2016.12.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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38
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Yoshida K, Yamazaki H, Takenaka T, Kotsuma T, Masui K, Komori T, Shimbo T, Yoshikawa N, Yoshioka H, Uesugi Y, Hamada T, Nakata M, Matsutani H, Ueda M, Tsujimoto Y, Tanaka E, Narumi Y. PO-0937: HDR image-guided interstitial brachytherapy for postoperative local recurrent uterine cancer. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31374-9] [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: 10/19/2022]
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Motojima G, Okada H, Watanabe KY, Nakamura Y, Sano F, Nagasaki K, Mizuuchi T, Kobayashi S, Kondo K, Yamamoto S, Suzuki Y, Hanatani K, Torii Y, Kaneko M, Arimoto H, Yamazaki H, Watanabe S, Tsuji T, Nakamura H, Kitagawa H, Yabutani H. Dependence of Toroidal Current on Bumpy Field Component in Heliotron J. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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)
- G. Motojima
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - H. Okada
- Kyoto University, Institute of Advanced Energy, Gokasho, Uji, Kyoto 611-0011, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - Y. Nakamura
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - F. Sano
- Kyoto University, Institute of Advanced Energy, Gokasho, Uji, Kyoto 611-0011, Japan
| | - K. Nagasaki
- Kyoto University, Institute of Advanced Energy, Gokasho, Uji, Kyoto 611-0011, Japan
| | - T. Mizuuchi
- Kyoto University, Institute of Advanced Energy, Gokasho, Uji, Kyoto 611-0011, Japan
| | - S. Kobayashi
- Kyoto University, Institute of Advanced Energy, Gokasho, Uji, Kyoto 611-0011, Japan
| | - K. Kondo
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - S. Yamamoto
- The Graduate University for Advanced Studies, Department of Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
| | - Y. Suzuki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - K. Hanatani
- Kyoto University, Institute of Advanced Energy, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Y. Torii
- Kyoto University, Institute of Advanced Energy, Gokasho, Uji, Kyoto 611-0011, Japan
| | - M. Kaneko
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - H. Arimoto
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - H. Yamazaki
- The Graduate University for Advanced Studies, Department of Fusion Science, 322-6 Oroshi-cho Toki, Gifu 509-5292, Japan
| | - S. Watanabe
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - T. Tsuji
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - H. Nakamura
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - H. Kitagawa
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
| | - H. Yabutani
- Kyoto University, Graduate School of Energy Science, Gokasho, Uji, Kyoto 611-0011, Japan
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40
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Terayama H, Yi SQ, Tanaka O, Kanazawa T, Suyama K, Kosemura N, Tetsu S, Yamazaki H, Sakamoto R, Kawakami S, Suzuki T, Sakabe K. Common and separate origins of the left and right inferior phrenic artery with a review of the literature. Folia Morphol (Warsz) 2017; 76:408-413. [PMID: 28281724 DOI: 10.5603/fm.a2017.0025] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 08/18/2016] [Indexed: 11/25/2022]
Abstract
In a 94-year-old male cadaver, upon which routine dissection was being conducted, a rare variation was found in the gastrophrenic trunk (GPT), the common trunk of the left gastric artery (LGA), right inferior phrenic artery (RIPA), and left inferior phrenic artery (LIPA); the GPT arises from the abdominal aorta. A hepatosplenic trunk accompanied the variation. In this variation, the RIPA first branched from the GPT and then to the LIPA and LGA. Variations in the common trunk of the LIPA and RIPA in the GPT are common, but to our knowledge, a variation (separate inferior phrenic artery in the GPT) similar to our findings has not been previously reported. We discuss the incidence and developmental and clinical significance of this variation with a detailed review of the literature. Knowledge of such a case has important clinical significance for invasive and non-invasive arterial procedures. Therefore, different variations concerning the LGA and inferior phrenic artery should be considered during surgical and non-surgical evaluations.
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Affiliation(s)
- H Terayama
- Department of Anatomy, Division of Basic Medicine, Tokai University School of Medicine, Japan, Japan.
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Morita S, Suzaki S, Ishizaki U, Endo K, Yamazaki H, Nishina Y, Sakai S. Radiation dose reduction in patients using dynamic trace digital angiography and spot fluoroscopy during adrenal venous sampling. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.1200] [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: 10/20/2022] Open
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42
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Karam I, Yao M, Heron D, Poon I, Koyfman S, Yom S, Siddiqui F, Lartigau E, Cengiz M, Yamazaki H, Hara W, Phan J, Vargo J, Lee V, Foote R, Harter K, Lee N, Sahgal A, Lo S. Consensus Statement From the International Stereotactic Body Radiotherapy Consortium for Head and Neck Carcinoma—Technical Factors. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1592] [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: 10/20/2022]
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43
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Suemizu H, Kuronuma M, Kawai K, Murayama N, Nakamura M, Yamazaki H. “In vivo” model for predicting organophosphate toxicity using humanized-liver chimeric mouse. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1367] [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: 11/30/2022]
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44
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Yamazaki H, Kato H, Nakatsuchi Y, Murakami N, Hata Y. Closed Rupture of the Flexor Tendons of the Little Finger Secondary to Non-Union of Fractures of the Hook of the Hamate. ACTA ACUST UNITED AC 2016; 31:337-41. [PMID: 16580104 DOI: 10.1016/j.jhsb.2005.12.015] [Citation(s) in RCA: 42] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2005] [Revised: 12/25/2005] [Accepted: 12/30/2005] [Indexed: 11/22/2022]
Abstract
We report six patients with closed flexor tendon rupture affecting the little finger, occurring secondarily to non-union of the hook of the hamate bone. The ununited fragments were separated from the basal part of the hook by more than 1 mm. The fragments were also rounded and showed marginal sclerosis. Non-union was located in the middle part of the hook in three patients, the tip in two, and the base in one. At operation, the fragments were removed in all patients. Five patients were treated by free tendon grafts using three palmaris and two plantaris grafts and one underwent tendon transfer. Postoperative total range of active motion of the little finger averaged 218° (range 185–265°). All patients returned to their original employment. This series would suggest that flexor tendon rupture can occur after fracture of the hook of the hamate bone, even when the ununited fragment is small and/or rounded.
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Affiliation(s)
- H Yamazaki
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto City, Nagano, Japan.
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45
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Sekizawa O, Uruga T, Takagi Y, Nitta K, Kato K, Tanida H, Uesugi K, Hoshino M, Ikenaga E, Takeshita K, Takahashi S, Sano M, Aoyagi H, Watanabe A, Nariyama N, Ohashi H, Yumoto H, Koyama T, Senba Y, Takeuchi T, Furukawa Y, Ohata T, Matsushita T, Ishizawa Y, Kudo T, Kimura H, Yamazaki H, Tanaka T, Bizen T, Seike T, Goto S, Ohno H, Takata M, Kitamura H, Ishikawa T, Tada M, Yokoyama T, Iwasawa Y. SPring-8 BL36XU: Catalytic Reaction Dynamics for Fuel Cells. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/712/1/012142] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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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46
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Uehara S, Uno Y, Inoue T, Kawano M, Shimizu M, Toda A, Utoh M, Sasaki E, Yamazaki H. Individual Differences in Metabolic Clearance of S-Warfarin Efficiently Mediated by Polymorphic Marmoset Cytochrome P450 2C19 in Livers. Drug Metab Dispos 2016; 44:911-5. [DOI: 10.1124/dmd.116.070383] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 04/19/2016] [Indexed: 11/22/2022] Open
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47
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Yoshida K, Yamazaki H, Takenaka T, Kotsuma T, Masui K, Akiyama H, Uesugi Y, Shimbo T, Yoshikawa N, Yoshioka H, Tanaka E, Narumi Y. PO-0964: High-dose-rate interstitial brachytherapy as monotherapy for locally limited mobile tongue cancer. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32214-9] [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: 10/21/2022]
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48
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Furui H, Ejiri A, Nagashima Y, Takase Y, Sonehara M, Tsujii N, Yamaguchi T, Shinya T, Togashi H, Homma H, Nakamura K, Takeuchi T, Yajima S, Yoshida Y, Toida K, Takahashi W, Yamazaki H. A model of plasma current through a hole of Rogowski probe including sheath effects. Review of Scientific Instruments 2016; 87:043503. [PMID: 27131670 DOI: 10.1063/1.4944941] [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: 06/05/2023]
Abstract
In TST-2 Ohmic discharges, local current is measured using a Rogowski probe by changing the angle between the local magnetic field and the direction of the hole of the Rogowski probe. The angular dependence shows a peak when the direction of the hole is almost parallel to the local magnetic field. The obtained width of the peak was broader than that of the theoretical curve expected from the probe geometry. In order to explain this disagreement, we consider the effect of sheath in the vicinity of the Rogowski probe. A sheath model was constructed and electron orbits were numerically calculated. From the calculation, it was found that the electron orbit is affected by E × B drift due to the sheath electric field. Such orbit causes the broadening of the peak in the angular dependence and the dependence agrees with the experimental results. The dependence of the broadening on various plasma parameters was studied numerically and explained qualitatively by a simplified analytical model.
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Affiliation(s)
- H Furui
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - A Ejiri
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | | | - Y Takase
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - M Sonehara
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - N Tsujii
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - T Yamaguchi
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - T Shinya
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - H Togashi
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - H Homma
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - K Nakamura
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - T Takeuchi
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - S Yajima
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Y Yoshida
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - K Toida
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - W Takahashi
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - H Yamazaki
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
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He Q, Fujimura H, Fukasawa H, Hashimoto R, Honda Y, Ishikawa T, Iwata T, Kaida S, Kasagi J, Kawano A, Kuwasaki S, Maeda K, Masumoto S, Miyabe M, Miyahara F, Mochizuki K, Muramatsu N, Nakamura A, Nawa K, Ogushi S, Okada Y, Onodera Y, Ozawa K, Sakamoto Y, Sato M, Shimizu H, Sugai H, Suzuki K, Tajima Y, Takahashi S, Taniguchi Y, Tsuchikawa Y, Yamazaki H, Yamazaki R, Yoshida HY. Double neutral pion photoproduction off the proton with FOREST at ELPH. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201610904004] [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: 11/15/2022] Open
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50
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Koshioka M, Nishijima T, Yamazaki H, Liu Y, Nonaka M, Mander LN. Analysis of gibberellins in growing fruits ofLycopersicon esculentumafter pollination or treatment with 4-chlorophenoxyacetic acid. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/14620316.1994.11515263] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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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