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Asano S, Hata JI, Watanabe K, Shimizu K, Matsui N, Yamada NL, Suzuki K, Kanno R, Hirayama M. Formation Processes of a Solid Electrolyte Interphase at a Silicon/Sulfide Electrolyte Interface in a Model All-Solid-State Li-Ion Battery. ACS Appl Mater Interfaces 2024; 16:7189-7199. [PMID: 38315660 DOI: 10.1021/acsami.3c16862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Understanding the electrochemical reactions at the interface between a Si anode and a solid sulfide electrolyte is essential in improving the cycle stabilities of Si anodes in all-solid-state batteries (ASSBs). Highly dense Si films with very low roughnesses of <1 nm were fabricated at room temperature via cathodic arc plasma deposition, which led to the formation of a Si/sulfide electrolyte model interface. Li (de)alloying through the model interface hardly occurred during the first cycle, whereas it proceeded stably in subsequent cycles. Hard X-ray photoelectron spectroscopy and neutron reflectometry directly revealed that the reduction or oxidation of the interfacial component or Li3PS4 electrolyte occurred during the first cycle. Consequently, an interfacial layer with a thickness of 13 nm and primarily composed of Li2S, SiS2, and P2S5 glasses was formed during the first cycle. The interfacial layer acted as a Li-conductive, electron-insulating solid electrolyte interphase (SEI) that provided reversible (de)lithiation. Our model interface directly demonstrates the electrochemical reaction processes at the Si/Li3PS4 interface and provides insights into the structures and electrochemical properties of SEIs to activate the (de)lithiation of Si anodes using a sulfide electrolyte.
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Affiliation(s)
- Sho Asano
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
| | - Jun-Ichi Hata
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
| | - Kenta Watanabe
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
| | - Keisuke Shimizu
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
| | - Naoki Matsui
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
| | - Norifumi L Yamada
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Ohno, Tsukuba, Ibaraki 305-0801, Japan
| | - Kota Suzuki
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
| | - Ryoji Kanno
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
| | - Masaaki Hirayama
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
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2
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Suzuki J, Okochi H, Matsui N, Nagase T, Tochizawa H, Sahara H, Nishikubo T, Sakai Y, Ohmi T, Pan Z, Saito T, Saitoh H, Ikezawa A, Arai H, Kanno R, Yamamoto T, Azuma M. Selective Synthesis of Perovskite Oxyhydrides Using a High-Pressure Flux Method. J Am Chem Soc 2023. [PMID: 37488780 DOI: 10.1021/jacs.3c02240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Oxyhydrides with multi-anions (O2- and H-) are a recently developed material family and have attracted attention as catalysts and hydride ion conductors. High-pressure and high-temperature reactions are effective in synthesizing oxyhydrides, but the reactions sometimes result in inhomogeneous products due to insufficient diffusion of the solid components. Here, we synthesized new perovskite oxyhydrides SrVO2.4H0.6 and Sr3V2O6.2H0.8. We demonstrated that the addition of SrCl2 flux promotes diffusion during high-pressure and high-temperature reactions, and can be used for selective synthesis of the oxyhydride phases. We conducted in-situ synchrotron X-ray diffraction measurements to reveal the role of this flux and reaction pathways. We also demonstrated the electronic and magnetic properties of the newly synthesized oxyhydrides and that they work as anode materials for Li-ion batteries with excellent reversibility and high-rate characteristics, the first case with an oxyhydride. Our synthesis approach would also be effective in synthesizing various types of multi-component systems.
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Affiliation(s)
- Jinya Suzuki
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Hiroyasu Okochi
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Naoki Matsui
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8502, Japan
| | - Teppei Nagase
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Haruki Tochizawa
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Hiroki Sahara
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Takumi Nishikubo
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
- Kanagawa Institute of Industrial Science and Technology, Ebina, Kanagawa 243-0435, Japan
| | - Yuki Sakai
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
- Kanagawa Institute of Industrial Science and Technology, Ebina, Kanagawa 243-0435, Japan
| | - Takuya Ohmi
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Zhao Pan
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Takashi Saito
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki 319-1106, Japan
| | - Hiroyuki Saitoh
- National Institutes for Quantum Science and Technology (QST), Sayo, Hyogo 679-5148, Japan
| | - Atsunori Ikezawa
- School of Materials Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
| | - Hajime Arai
- School of Materials Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8502, Japan
| | - Ryoji Kanno
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8502, Japan
| | - Takafumi Yamamoto
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Masaki Azuma
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
- Kanagawa Institute of Industrial Science and Technology, Ebina, Kanagawa 243-0435, Japan
- Living Systems Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology, Yokohama, Kanagawa 226-8501, Japan
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Li Y, Song S, Kim H, Nomoto K, Kim H, Sun X, Hori S, Suzuki K, Matsui N, Hirayama M, Mizoguchi T, Saito T, Kamiyama T, Kanno R. A lithium superionic conductor for millimeter-thick battery electrode. Science 2023; 381:50-53. [PMID: 37410839 DOI: 10.1126/science.add7138] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 05/25/2023] [Indexed: 07/08/2023]
Abstract
No design rules have yet been established for producing solid electrolytes with a lithium-ion conductivity high enough to replace liquid electrolytes and expand the performance and battery configuration limits of current lithium ion batteries. Taking advantage of the properties of high-entropy materials, we have designed a highly ion-conductive solid electrolyte by increasing the compositional complexity of a known lithium superionic conductor to eliminate ion migration barriers while maintaining the structural framework for superionic conduction. The synthesized phase with a compositional complexity showed an improved ion conductivity. We showed that the highly conductive solid electrolyte enables charge and discharge of a thick lithium-ion battery cathode at room temperature and thus has potential to change conventional battery configurations.
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Affiliation(s)
- Yuxiang Li
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Subin Song
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Hanseul Kim
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Kuniharu Nomoto
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Hanvin Kim
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Xueying Sun
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Satoshi Hori
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Kota Suzuki
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Naoki Matsui
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Masaaki Hirayama
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Teruyasu Mizoguchi
- Institute of Industrial Science, the University of Tokyo, Tokyo 153-8505, Japan
| | - Takashi Saito
- Neutron Science Division (KENS), Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
- Department of Materials Structure Science, School of High Energy Accelerator Science, The Graduate University for Advanced Studies, SOKENDAI, 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
- Japan Proton Accelerator Research Complex (J-PARC) Center, Materials and Life Science Division, 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Takashi Kamiyama
- Neutron Science Division (KENS), Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
- Department of Materials Structure Science, School of High Energy Accelerator Science, The Graduate University for Advanced Studies, SOKENDAI, 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Ryoji Kanno
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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Jiang G, Matsui N, Mezaki T, Toda Y, Suzuki K, Hirayama M, Saito T, Kamiyama T, Kanno R. Synthesis, structure, and electrical conductivity of Sr2LiH2N nitride hydride. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123051] [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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Huang W, Matsui N, Hori S, Suzuki K, Hirayama M, Yonemura M, Saito T, Kamiyama T, Sasaki Y, Yoon Y, Kim S, Kanno R. Anomalously High Ionic Conductivity of Li 2SiS 3-Type Conductors. J Am Chem Soc 2022; 144:4989-4994. [PMID: 35138083 DOI: 10.1021/jacs.1c13178] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Solid-state electrolytes that exhibit high ionic conductivities at room temperature are key materials for obtaining the next generation of safer, higher-specific-energy solid-state batteries. However, the number of currently available crystal structures for use as superionic conductors remains limited. Here, we report a lithium superionic conductor, Li2SiS3, with tetragonal crystal symmetry, which possesses a new three-dimensional framework structure consisting of isolated edge-sharing tetrahedral dimers. This species exhibits an anomalously high ionic conductivity of 2.4 mS cm-1 at 298 K, which is 3 orders of magnitude higher than the reported ionic conductivity for its orthorhombic polymorph. The framework of this conductor consists mainly of silicon, which is abundant in natural resources, and its further optimization may lead to the development of new solid-state electrolytes for large-scale applications.
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Affiliation(s)
- Wenze Huang
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Naoki Matsui
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Satoshi Hori
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Kota Suzuki
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Masaaki Hirayama
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Masao Yonemura
- Neutron Science Division (KENS), Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki 319-1106 Japan
| | - Takashi Saito
- Neutron Science Division (KENS), Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki 319-1106 Japan.,Department of Materials Structure Science, School of High Energy Accelerator Science, The Graduate University for Advanced Studies, SOKENDAI, 203-1 Shirakata, Tokai, Ibaraki 319-1106 Japan
| | - Takashi Kamiyama
- Neutron Science Division (KENS), Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki 319-1106 Japan
| | - Yuki Sasaki
- Hyundai Mobility Japan R&D Center, Inc., Minatomirai Center Bldg. 16F, 3-6-1 minatomirai Nishi-ku, Yokohama 220-0012, Japan
| | - Yongsub Yoon
- Hyundai Mobility Japan R&D Center, Inc., Minatomirai Center Bldg. 16F, 3-6-1 minatomirai Nishi-ku, Yokohama 220-0012, Japan.,Hyundai Motor Company, 150 Hyundaiyeonguso-ro, Namyang-eup, Hwasung-si, Gyeonggi-do 18280, Republic of Korea
| | - Saheum Kim
- Hyundai Motor Company, 150 Hyundaiyeonguso-ro, Namyang-eup, Hwasung-si, Gyeonggi-do 18280, Republic of Korea
| | - Ryoji Kanno
- Research Center for All-Solid-State Battery, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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Xu M, Song S, Daikuhara S, Matsui N, Hori S, Suzuki K, Hirayama M, Shiotani S, Nakanishi S, Yonemura M, Saito T, Kamiyama T, Kanno R. Li 10GeP 2S 12-Type Structured Solid Solution Phases in the Li 9+δP 3+δ'S 12-kO k System: Controlling Crystallinity by Synthesis to Improve the Air Stability. Inorg Chem 2021; 61:52-61. [PMID: 34914367 DOI: 10.1021/acs.inorgchem.1c01748] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Understanding the fast Li ionic conductors of oxygen-substituted thiophosphates is useful for developing all-solid-state batteries because these compounds possess a high electrochemical stability and thus may be applied as solid electrolytes. In this study, we synthesized the Li9+δP3+δ'S12-kOk series of solid solution phases with the same structure as the Li10GeP2S12 superionic conductor and characterized their crystallinity, solid solution range, and chemical stabilities. Two methods (mechanochemical and melt quenching) were used for sample synthesis. Mechanochemical synthesis was used to obtain samples within a wide range of sulfur/oxygen substitution degrees, and the solid solution range was determined to be 0 < k ≤ 3.6 based on their lattice parameter variation. Meanwhile, the melt-quenched Li9P3S9O3 phase exhibited a high degree of crystallinity up to its particle surface and was thus selected for neutron crystal structure analysis, which revealed the oxygen distribution related to the solubility limit. The highly crystalline melt-quenched Li9P3S9O3 showed better stability in the air atmosphere compared to the mechanochemically synthesized counterpart with a low crystallinity, implying that sample crystallinity is an important parameter in evaluating the air stability of thiophosphates. The promising electrochemical properties of the solid solution series were demonstrated by the stable charge-discharge cycling of an all-solid-state lithium metal cell using the Li9+δP3+δ'S12-kOk electrolyte with k = 0.9 and a conductivity of >1 × 10-3 S cm-1 at 300 K.
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Affiliation(s)
- Miao Xu
- Research Center for All-Solid-State Battery, Institute of Innovation Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Subin Song
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Shugo Daikuhara
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Naoki Matsui
- Research Center for All-Solid-State Battery, Institute of Innovation Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Satoshi Hori
- Research Center for All-Solid-State Battery, Institute of Innovation Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Kota Suzuki
- Research Center for All-Solid-State Battery, Institute of Innovation Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Masaaki Hirayama
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Shinya Shiotani
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan.,Advanced Battery Development Div., Toyota Motor Corporation, Toyota-cho, Toyota, Aichi 471-8571, Japan
| | - Shinji Nakanishi
- Advanced Battery Development Div., Toyota Motor Corporation, Toyota-cho, Toyota, Aichi 471-8571, Japan
| | - Masao Yonemura
- Neutron Science Division (KENS), Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Takashi Saito
- Neutron Science Division (KENS), Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan.,Department of Materials Structure Science, School of High Energy Accelerator Science, The Graduate University for Advanced Studies, SOKENDAI, 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Takashi Kamiyama
- Neutron Science Division (KENS), Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Ryoji Kanno
- Research Center for All-Solid-State Battery, Institute of Innovation Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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Kojima Y, Shimizu T, Yonemori K, Koyama T, Matsui N, Kamikura M, Tomatsuri S, Okuma H, Shimoi T, Noguchi E, Sudo K, Hirakawa A, Sadachi R, Okita N, Nakamura K, Yamamoto N, Fujiwara Y. 1521O A phase II biomarker-driven study evaluating the clinical efficacy of an MDM2 inhibitor, milademetan, in patients with intimal sarcoma, an ultra-rare cancer with highly life-threatening unmet medical needs (NCCH1806/MK004). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Yonemori K, Shimizu T, Koyama T, Matsui N, Okuma H, Noguchi E, Sudo K, Hirakawa A, Sukigara T, Fujitani S, Nakamura K, Tamura K, Yamamoto N, Fujiwara Y. A phase II biomarker-driven study evaluating the clinical efficacy of an MDM2 inhibitor, milademetan, in patients with intimal sarcoma, a disease with a high unmet need. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz283.065] [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: 11/13/2022] Open
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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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10
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Suzuki N, Mori-Yoshimura M, Yamashita S, Nakano S, Murata K, Inamori Y, Matsui N, Kimura E, Kusaka H, Kondo T, Higuchi I, Kaji R, Tateyama M, Izumi R, Ono H, Kato M, Warita H, Takahashi T, Nishino I, Aoki M. Multicenter questionnaire survey for sporadic inclusion body myositis in Japan. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3040] [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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11
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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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12
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Matsui N, Ohigashi I, Yamamoto Y, Kondo K, Takahama Y, Kaji R. Approach for analysis of human thymic epithelial cells. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2298] [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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Nodera H, Takamatsu N, Matsui N, Mori A, Terasawa Y, Shimatani Y, Osaki Y, Maruyama K, Izumi Y, Kaji R. Intramuscular dissociation of echogenicity in the triceps surae characterizes sporadic inclusion body myositis. Eur J Neurol 2015; 23:588-96. [DOI: 10.1111/ene.12899] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 10/01/2015] [Indexed: 11/29/2022]
Affiliation(s)
- H. Nodera
- Department of Neurology Tokushima University TokushimaJapan
| | - N. Takamatsu
- Department of Neurology Tokushima University TokushimaJapan
- Vihara Hananosato Hospital MiyoshiJapan
| | - N. Matsui
- Department of Neurology Tokushima University TokushimaJapan
| | - A. Mori
- Department of Neurology Tokushima University TokushimaJapan
| | - Y. Terasawa
- Department of Neurology Tokushima University TokushimaJapan
- Department of Neurology Jikei University School of Medicine Tokyo Japan
| | - Y. Shimatani
- Department of Neurology Tokushima University TokushimaJapan
| | - Y. Osaki
- Department of Neurology Tokushima University TokushimaJapan
| | - K. Maruyama
- Department of Neurology Tokushima University TokushimaJapan
| | - Y. Izumi
- Department of Neurology Tokushima University TokushimaJapan
- Vihara Hananosato Hospital MiyoshiJapan
| | - R. Kaji
- Department of Neurology Tokushima University TokushimaJapan
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Matsui N, Bai X, Yoshimura D, Sugi M, Nakasha A, Kuwano A, Shimokawa Y, Oogoshi K, Tanaka M, Nakamura K. Effective hemostasis with double-balloon rectal catheter for uncontrolled bleeding during endoscopic mucosal resection of large rectal neoplasms. Endoscopy 2014; 45 Suppl 2 UCTN:E122-3. [PMID: 23716090 DOI: 10.1055/s-0032-1326282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- N Matsui
- Department of Gastroenterology and Hepatology, National Hospital Organization Fukuoka Higashi Medical Center, Koga, Japan.
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Liu J, Sekiya I, Asai K, Tada T, Kato T, Matsui N. Effects of mechanical vibration on DNA and proteoglycan syntheses in cultured articular chondrocytes. Mod Rheumatol 2014; 11:40-6. [DOI: 10.3109/s101650170042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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16
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Hattori S, Li Q, Matsui N, Nishino H. Treadmill running combined with microdialysis can evaluate motor deficit and improvement following dopaminergic grafts in 6-OHDA lesioned rats. Restor Neurol Neurosci 2012; 6:65-72. [PMID: 21551732 DOI: 10.3233/rnn-1993-6107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To evaluate the physiological role of striatal dopamine (DA) during exercise and the mechanism of functional recovery mediated by grafted DAergic neurons, the locomotor ability (treadmill running) and DA turnover were investigated using treadmill running combined with in vivo microdialysis in the intact control rats, 6-hydroxydopamine (6-OHDA) lesioned rats (hemi-parkinsonian model rats) and DAergic cell grafted rats. The 3 groups of rats were trained to run on a straight treadmill at a speed of 1,800 cm/min for 20 min every day for 7 consecutive days. If the rats could not follow the speed they got electrostimulation (ES) from the grid behind the treadmill belt. The numbers of ES rats received during treadmill running were counted to quantify the locomotor ability. Control rats could keep up with the treadmill easily (0-1 ES/10 min), whereas lesioned rats could not follow the speed (80-100 ES/10 min). Most of the grafted rats received only a few ES, but a few received over 100 ES/10 min. Extracellular DA and its metabolites, dihydroxyphenyl acetic acid (DOPAC) and homovanillic acid (HVA), were measured by in vivo microdialysis and high-performance liquid chromatography (HPLC) during and after treadmill running. In control rats the basal levels of DA, DOPAC and HVA were 2.3 fmol/μl, 1,109.8 fmol/μl and 612.2 fmol/μl, respectively. They increased up to 130%, 140% and 160% by running. In 6-OHDA lesioned rats basal values of DA, DOPAC and HVA were less than 10% of controls. We did not perform microdialysis in these rats since they got too much ES during running. In grafted rats that showed good recovery in locomotor ability, DA returned to almost control level (1.9 fmol/μl), but those of DOPAC (127.8 fmol/μl) and HVA (100.2 fmol/μl) were still low. DA, DOPAC and HVA increased up to 130%, 130% and 150% by running in a similar pattern as in intact rats. These results suggest that grafted neurons can release and metabolize DA in the host striatum both tonically and phasically in relation with internal and external stimuli and also suggest that treadmill running ability is a good indicator of DA turnover in the striatum. Thus, the treadmill running test with microdialysis is useful for quantitative evaluation of motor function in grafted animals.
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Affiliation(s)
- S Hattori
- Department of Orthopedics, Nagoya City University Medical School, Mizuho-ku, Nagoya 467, Japan Department of Physiology, Nagoya City University Medical School, Mizuho-ku, Nagoya 467, Japan
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Ushiki K, Sato Y, Arai K, Ide N, Matsui N, Handa H, Murakami H, Ogawara H. [Evaluation of mental stress tests among medical students based on salivary sample collected just before the national license examination]. Rinsho Byori 2011; 59:138-143. [PMID: 21476295] [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: 05/30/2023]
Abstract
We investigated salivary amylase (sAMY) and chromogranin A (sCgA) in students before the national license examination in order to investigate the relationship between stress biomarkers and the Profile of Mood States (POMS) psychological test. Fifty-one medical students that provided informed consent were tested for sAMY activity and sCgA concentration by means of the amylase monitor method (NIPRO) and an ELISA kit (Yanaihara), respectively. The POMS psychology test (shortened form) was purchased from Chiba Test Center, and all students fully answered the lifestyle questionnaires. Based on answers to the questionnaires, students were divided by mental burden into three groups: I all"; II "large"; and III "very large". Scores for "T-A", "D" and "A-H" on the POMS test were significantly higher in groups II and III when compared with group I. Mean TMD scores calculated from the 6 items on the POMS test increased significantly with mental burden. The mean levels and 95% confidence interval (CI) of sAMY activity in the 3 groups were as follows: I, 27.7 (95% CI: 13.7-41.7) KIU/L; II, 29.1(95% CI: 22.4-35.7) KIU/L; and III, 26.9 (95% CI: 15.2-38.6) KIU/L. Mean sCgA concentrations were: I, 4.4(95% CI: 0-9.4) pmol/mg; II, 4.3(95% CI: 2.0-6.7) pmol/mg; and III, 10.9 (95% CI: 6.8-15.0) pmol/mg. There were no significant differences between these mean levels. However, Spearman's rank-correlation coefficient analysis for "T-A", sAMY and sCgA showed a stronger correlation between "T-A" and sCgA than between "T-A" and sAMY (p < 0.05). In conclusion, sCgA was more useful biomarker to evaluate the psychological stress before the national license examination than sAMY.
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Affiliation(s)
- Kazumi Ushiki
- School of Health Sciences, Faculty of Medicine, Gunma University, Maebashi, Japan
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Sakai K, Morito N, Usui J, Hagiwara M, Hiwatashi A, Fukuda K, Nanmoku T, Toda T, Matsui N, Nagata M, Yamagata K. Focal segmental glomerulosclerosis as a complication of hepatitis B virus infection. Nephrol Dial Transplant 2010; 26:371-3. [DOI: 10.1093/ndt/gfq600] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Motomura Y, Akahoshi K, Matsui N, Kubokawa M, Higuchi N, Oda M, Endo S, Kashiwabara Y, Okamoto R, Nakamura K. Clinical and endoscopic characteristics of acute haemorrhagic rectal ulcer, and endoscopic haemostatic treatment: a retrospective study of 95 patients. Colorectal Dis 2010; 12:e320-5. [PMID: 19863598 DOI: 10.1111/j.1463-1318.2009.02091.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
AIM Acute haemorrhagic rectal ulcer (AHRU) is characterized by sudden onset of painless and massive rectal bleeding in elderly bedridden patients who have serious illness. Endoscopic diagnosis and management of AHRU is, however, still controversial. We retrospectively investigated 95 AHRU patients to elucidate the clinical characteristics, endoscopic findings and haemostatic strategies. METHOD Between January 1999 and March 2007, 95 patients were diagnosed with AHRU in our hospital. Medical records and colonoscopy files were reviewed. Clinical features, colonoscopic findings, haemostatic treatment and outcome of the patients were evaluated. RESULTS Eighty per cent of the patients were bedridden at the onset. The most frequent underlying disorder was cerebrovascular disease (36.8%). Hypoalbuminaemia (< 3.5 g/dl) was seen in 92.6% of the patients. Endoscopic findings of AHRU were classified as circumferential ulcer (41.1%), linear or nearly round small ulcer(s) (44.2%), circumferential and small ulcer(s) (7.4%) and Dieulafoy-like ulcer (7.4%). Primary endoscopic haemostatic treatment was performed in 45.3% of cases. Recurrent bleeding occurred in 24.2% of patients. Permanent haemostasis was achieved by secondary endoscopic treatment in 82.6% of re-bleeding patients. CONCLUSION Understanding the typical clinical and endoscopic findings and careful endoscopic examination are important for the accurate diagnosis of AHRU, and endoscopic haemostatic therapy may be effective for bleeding patients.
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Affiliation(s)
- Y Motomura
- Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan.
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Zhang HL, Wu J, Ni FM, Kaji R, Matsui N, Takahama Y, Nakane S. Undiminished regulatory T cells in the thymus of patients with myasthenia gravis. Neurology 2010; 75:1121. [PMID: 20855859 DOI: 10.1212/wnl.0b013e3181f46fa5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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21
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Tsunoda A, Nakao K, Watanabe M, Matsui N, Ooyama A, Kusano M. Associations of various gene polymorphisms with toxicity in colorectal cancer patients receiving oral uracil and tegafur plus leucovorin: a prospective study. Ann Oncol 2010; 22:355-61. [PMID: 20647221 DOI: 10.1093/annonc/mdq358] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND To assess the predictive value of polymorphism in nine genes, primarily thymidylate synthase (TS) and orotate phosphoribosyltransferase (OPRT), which relates to 5-fluorouracil (5-FU) metabolism, for toxicity in patients treated with oral uracil/tegafur (UFT) plus leucovorin (LV). PATIENTS AND METHODS We treated 99 patients with stage II or III colorectal carcinoma with oral UFT + LV. Germline DNA from patients was genotyped for 5-FU and folate metabolism-relating genes. CYP2A6, tegafur-activating enzyme, and uridine diphosphate-glucuronosyltransferase 1A1 genetic variation were also assessed. Toxicity was graded by the National Cancer Institute Common Toxicity Criteria, version 2.0. RESULTS The multivariate logistic regression revealed that OPRT 638G>C polymorphism was associated with grade 3 diarrhea [odds ratio (OR) 19.84 for patients with the C/C homozygous type compared with patients with wild type, P = 0.014] and polymorphisms of UGT1A1 were associated with hyperbilirubinemia (OR 38.76 for homozygotes and double heterozygotes of *6 or *28 compared with wild type, P = 0.0008). No relationships were observed between TS polymorphisms and any toxicity. CONCLUSIONS OPRT polymorphism predicts toxicity, especially grade 3 or greater diarrhea to oral UFT + LV adjuvant chemotherapy, whereas TS does not, in our study cohort. UGT1A1 polymorphism seems to be a risk factor for hyperbilirubinemia due to UFT+LV.
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Affiliation(s)
- A Tsunoda
- Department of Surgery, Kameda Medical Center, Chiba.
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Higuchi N, Akahoshi K, Honda K, Matsui N, Kubokawa M, Motomura Y, Nakamura K, Takayanagi R. Diagnosis of a small splenic artery aneurysm mimicking a gastric submucosal tumor on endoscopic ultrasound. Endoscopy 2010; 42 Suppl 2:E107-8. [PMID: 20306394 DOI: 10.1055/s-0029-1243940] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- N Higuchi
- Department of Gastroenterology, Aso Iizuka Hospital, Yoshio, Iizuka, Japan
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Tsunoda A, Nakao K, Watanabe M, Matsui N, Tsunoda Y. Health-related Quality of Life in Patients with Colorectal Cancer Who Receive Oral Uracil and Tegafur plus Leucovorin. Jpn J Clin Oncol 2010; 40:412-419. [DOI: 10.1093/jjco/hyp185] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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24
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Li Q, Kobayashi M, Inagaki H, Hirata Y, Li YJ, Hirata K, Shimizu T, Suzuki H, Katsumata M, Wakayama Y, Kawada T, Ohira T, Matsui N, Kagawa T. A day trip to a forest park increases human natural killer activity and the expression of anti-cancer proteins in male subjects. J BIOL REG HOMEOS AG 2010; 24:157-165. [PMID: 20487629] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We previously reported that 2-night/3-day trips to forest parks enhanced human NK activity, the number of NK cells, and intracellular anti-cancer proteins in lymphocytes, and that this increased NK activity lasted for more than 7 days after the trip in both male and female subjects. In the present study, we investigated the effect of a day trip to a forest park on human NK activity in male subjects. Twelve healthy male subjects, aged 35-53 years, were selected after giving informed consent. The subjects experienced a day trip to a forest park in the suburbs of Tokyo. They walked for two hours in the morning and afternoon, respectively, in the forest park on Sunday. Blood and urine were sampled in the morning of the following day and 7 days after the trip, and the NK activity, numbers of NK and T cells, and granulysin, perforin, and granzyme A/B-expressing lymphocytes, the concentration of cortisol in blood samples, and the concentration of adrenaline in urine were measured. Similar measurements were made before the trip on a weekend day as the control. Phytoncide concentrations in the forest were measured. The day trip to the forest park significantly increased NK activity and the numbers of CD16(+) and CD56(+) NK cells, perforin, granulysin, and granzyme A/B-expressing NK cells and significantly decreased CD4(+) T cells, the concentrations of cortisol in the blood and adrenaline in urine. The increased NK activity lasted for 7 days after the trip. Phytoncides, such as isoprene, alpha-pinene, and beta-pinene, were detected in the forest air. These findings indicate that the day trip to the forest park also increased the NK activity, number of NK cells, and levels of intracellular anti-cancer proteins, and that this effect lasted for at least 7 days after the trip. Phytoncides released from trees and decreased stress hormone levels may partially contribute to the increased NK activity.
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Affiliation(s)
- Qing Li
- Department of Hygiene and Public Health, Nippon Medical School, Bunkyo-ku, Tokyo, Japan.
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Matsui N, Nakane S, Saito F, Ohigashi I, Nakagawa Y, Kurobe H, Takizawa H, Mitsui T, Kondo K, Kitagawa T, Takahama Y, Kaji R. Undiminished regulatory T cells in the thymus of patients with myasthenia gravis. Neurology 2010; 74:816-20. [DOI: 10.1212/wnl.0b013e3181d31e47] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [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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26
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Matsui N, Nakane S, Nakagawa Y, Kondo K, Mitsui T, Matsumoto T, Arisawa K, Kaji R. Increasing incidence of elderly onset patients with myasthenia gravis in a local area of Japan. J Neurol Neurosurg Psychiatry 2009; 80:1168-71. [PMID: 19762910 DOI: 10.1136/jnnp.2008.152637] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE As the number of elderly patients with myasthenia gravis (MG) has recently increased in Europe and the USA, a retrospective survey of Japanese MG patients was conducted in a single neurological centre over several decades. METHODS The study consisted of 112 consecutive MG patients with onset of the disease from 1971 to 2006 from an area of approximately 0.8 million inhabitants in Japan. Patients were classified into three subgroups according to age at onset: young onset (39 years old), middle aged onset (40-59 years old) and elderly onset (60 years old). The trends in incidence rate and clinical features were examined: disease severity, seropositivity for antiacetylcholine receptor antibody, occurrence of other autoimmune diseases, occurrence of thymoma and therapeutic response. RESULTS The onset adjusted age specific average annual incidence per 100,000 of the elderly onset MG patients increased 20-fold from 1981-1990 (0.06; 95% CI 0.00 to 0.36) to 2001-2006 (1.30; 95% CI 0.77 to 2.05). Clinical features of the elderly onset MG patients included low antiacetylcholine receptor antibody titres (mean 24.6 nmol/l), less frequent autoimmune overlaps (8.0%) and nearly no complete stable remission with or without thymectomy. CONCLUSION The increasing incidence of elderly onset MG in Japanese patients similar to that reported in Caucasians has been confirmed. The clinical features suggest different immunological backgrounds between young onset and elderly onset MG patients, irrespective of the ethnic background.
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Affiliation(s)
- N Matsui
- Department of Neurology, Institute of Health Bioscience, Tokushima University Graduate School of Medicine, Tokushima, Japan
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27
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Tsunoda A, Nakao K, Watanabe M, Matsui N, Ooyama A. 6091 Associations of various gene polymorphisms with toxicity in colorectal cancer patients receiving oral uracil and tegafur plus leucovorin: a prospective study. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71186-3] [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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Tsunoda A, Yasuda N, Nakao K, Narita K, Watanabe M, Matsui N, Kusano M. Phase II Study of S-1 Combined with Irinotecan (CPT-11) in Patients with Advanced Colorectal Cancer. Oncology 2009; 77:192-6. [DOI: 10.1159/000236017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 06/12/2009] [Indexed: 11/19/2022]
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Akahoshi K, Honda K, Kubokawa M, Motomura Y, Matsui N, Endo S, Higuchi N, Taki K, Oya M, Akahane H, Akiba H. Endoscopic resection of a large pedunculated duodenal polyp using a grasping type scissors forceps. Endoscopy 2008; 40 Suppl 2:E74-5. [PMID: 18633904 DOI: 10.1055/s-2007-995524] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- K Akahoshi
- Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan.
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Matsui N, Akahoshi K, Motomura Y, Kubokawa M, Kimura M, Ohuchi J, Honda K, Murata A, Endoh S, Miyazaki M, Oya M, Nakano S, Nakamura K. Endosonographic detection of dumbbell-shaped jejunal GIST using double balloon enteroscopy. Endoscopy 2008; 40 Suppl 2:E38-9. [PMID: 18300201 DOI: 10.1055/s-2007-966828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- N Matsui
- Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan.
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Li Q, Morimoto K, Kobayashi M, Inagaki H, Katsumata M, Hirata Y, Hirata K, Suzuki H, Li YJ, Wakayama Y, Kawada T, Park BJ, Ohira T, Matsui N, Kagawa T, Miyazaki Y, Krensky AM. Visiting a forest, but not a city, increases human natural killer activity and expression of anti-cancer proteins. Int J Immunopathol Pharmacol 2008; 21:117-27. [PMID: 18336737 DOI: 10.1177/039463200802100113] [Citation(s) in RCA: 170] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
We previously reported that a forest bathing trip enhanced human NK activity, number of NK cells, and intracellular anti-cancer proteins in lymphocytes. In the present study, we investigated how long the increased NK activity lasts and compared the effect of a forest bathing trip on NK activity with a trip to places in a city without forests. Twelve healthy male subjects, age 35-56 years, were selected with informed consent. The subjects experienced a three-day/two-night trip to forest fields and to a city, in which activity levels during both trips were matched. On day 1, subjects walked for two hours in the afternoon in a forest field; and on day 2, they walked for two hours in the morning and afternoon, respectively, in two different forest fields; and on day 3, the subjects finished the trip and returned to Tokyo after drawing blood samples and completing the questionnaire. Blood and urine were sampled on the second and third days during the trips, and on days 7 and 30 after the trip, and NK activity, numbers of NK and T cells, and granulysin, perforin, and granzymes A/B-expressing lymphocytes in the blood samples, and the concentration of adrenaline in urine were measured. Similar measurements were made before the trips on a normal working day as the control. Phytoncide concentrations in forest and city air were measured. The forest bathing trip significantly increased NK activity and the numbers of NK, perforin, granulysin, and granzyme A/B-expressing cells and significantly decreased the concentration of adrenaline in urine. The increased NK activity lasted for more than 7 days after the trip. In contrast, a city tourist visit did not increase NK activity, numbers of NK cells, nor the expression of selected intracellular anti-cancer proteins, and did not decrease the concentration of adrenaline in urine. Phytoncides, such as alpha-pinene and beta-pinene were detected in forest air, but almost not in city air. These findings indicate that a forest bathing trip increased NK activity, number of NK cells, and levels of intracellular anti-cancer proteins, and that this effect lasted at least 7 days after the trip. Phytoncides released from trees and decreased stress hormone may partially contribute to the increased NK activity.
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Affiliation(s)
- Q Li
- Department of Hygiene and Public Health, Nippon Medical School, Bunkyo-ku, Tokyo, Japan.
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Makise M, Matsui N, Yamairi F, Takahashi N, Takehara M, Asano T, Mizushima T. Analysis of Origin Recognition Complex in Saccharomyces cerevisiae by Use of Degron Mutants. J Biochem 2007; 143:455-65. [DOI: 10.1093/jb/mvn005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kubo Y, Fukuishi N, Yoshioka M, Kawasoe Y, Iriguchi S, Imajo N, Yasui Y, Matsui N, Akagi M. Bacterial components regulate the expression of Toll-like receptor 4 on human mast cells. Inflamm Res 2007; 56:70-5. [PMID: 17431743 DOI: 10.1007/s00011-006-6064-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES AND DESIGN The aim of this study was to investigate whether the exposure of mast cells (MCs) to bacterial components affects the expression of Toll-like receptor (TLR) 4, and to elucidate the behavior of MCs during the early response to infection. MATERIALS Two human MC lines, HMC-1 and LAD2, were employed. Messenger RNA expression was observed by RT and real-time PCR. TLR4 expression was determined by Western blotting. TNF-alpha secretion was analyzed with ELISA. The degranulation ratio was measured with betahexosaminidase assay. RESULTS Although bacterial components increased TLR4 mRNA, only lipopolysaccharide (LPS) augmented the TLR4 protein expression. LAD2 pre-treated with LPS for 8 h resulted in 2-fold increased TNF-alpha secretion on LPS restimulation. CONCLUSION These results suggest that the exposure of MCs to LPS may reinforce the innate immune system due to up-regulation of MC TLR4, followed by increased TNF-alpha release.
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Affiliation(s)
- Y Kubo
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Nishihama Bouji 180, Tokushima 770-8514, Japan
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Elekes Z, Dombrádi Z, Aoi N, Bishop S, Fülöp Z, Gibelin J, Gomi T, Hashimoto Y, Imai N, Iwasa N, Iwasaki H, Kalinka G, Kondo Y, Korsheninnikov AA, Kurita K, Kurokawa M, Matsui N, Motobayashi T, Nakamura T, Nakao T, Nikolskii EY, Ohnishi TK, Okumura T, Ota S, Perera A, Saito A, Sakurai H, Satou Y, Sohler D, Sumikama T, Suzuki D, Suzuki M, Takeda H, Takeuchi S, Togano Y, Yanagisawa Y. Spectroscopic study of neutron shell closures via nucleon transfer in the near-dripline nucleus 23O. Phys Rev Lett 2007; 98:102502. [PMID: 17358526 DOI: 10.1103/physrevlett.98.102502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2006] [Indexed: 05/14/2023]
Abstract
Neutron single particle energies have been measured in 23O using the 22O(d,p)23O*-->22O+n process. The energies of the resonant states have been deduced to be 4.00(2) MeV and 5.30(4) MeV. The first excited state can be assigned to the nu d3/2 single particle state from a comparison with shell model calculations. The measured 4.0 MeV energy difference between the nu s1/2 and nu d3/2 states gives the size of the N=16 shell gap which is in agreement with the recent USD05 ("universal" sd from 2005) shell model calculation, and is large enough to explain the unbound nature of the oxygen isotopes heavier than A=24. The resonance detected at 5.3 MeV can be assigned to a state out of the sd shell model space. Its energy corresponds to a approximately 1.3 MeV sized N=20 shell gap, therefore, the N=20 shell closure disappears at Z=8 in agreement with Monte Carlo shell model calculations using SDPF-M interaction.
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Affiliation(s)
- Z Elekes
- Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, H-4001, Hungary
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35
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Sakai H, Saito T, Ikeda T, Itoh K, Kawabata T, Kuboki H, Maeda Y, Matsui N, Rangacharyulu C, Sasano M, Satou Y, Sekiguchi K, Suda K, Tamii A, Uesaka T, Yako K. Spin correlations of strongly interacting massive fermion pairs as a test of Bell's inequality. Phys Rev Lett 2006; 97:150405. [PMID: 17155304 DOI: 10.1103/physrevlett.97.150405] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Indexed: 05/12/2023]
Abstract
We report the results of the first-time test of the local hidden variable theories (Bell-Clauser-Horne-Shimony-Holt) involving strongly interacting pairs of massive spin 1/2 hadrons from the decay of short-lived (tau<10;-21sec) 2He spin-singlet state, populated in the nuclear reaction 2H+;1H-->;2He+n. The novel features of this experiment are (a) the use of an 'event-ready' [corrected] detector of nearly 100% efficiency to prepare an unbiased sample and (b) a focal-plane polarimeter of full 2pi sr acceptance with a random "post selection" of the reference axes. The spin-correlation function is deduced to be S[exp](pi/4)=2.83+/-0.24stat+/-0.07sys. This result is in agreement with nonlocal quantum mechanical prediction and it violates the Bell-CHSH inequality of |S|<or=2 at a confidence level of 99.3%.
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Affiliation(s)
- H Sakai
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
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Hayata T, Matsu T, Kawano Y, Matsui N, Miyakawa I. Scanning electron microscopy of endometriotic lesions in the pelvic peritoneum and the histogenesis of endometriosis. Int J Gynaecol Obstet 2004; 39:311-9. [PMID: 1361465 DOI: 10.1016/0020-7292(92)90263-i] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To determine whether the epithelium of an endometriotic lesion has eutopic endometrial glandular epithelium morphology or not for the histogenesis of endometriosis. METHOD Scanning electron microscopy (SEM) of the endometrium was done for 25 cases. Histologically proven endometriotic lesions of 10 of these 25 cases were processed for SEM. Peroneum samples of another 15 cases without histological endometriosis were also studied. RESULT Three of 10 cases with histologically proven endometriotic lesions revealed endometrium-like morphology by SEM, whereas normal appearing peritoneum without histological endometriosis in 15 cases showed no endometrium-like structures by SEM. CONCLUSION Although abovementioned results did not support retrograde menstruation and implantation, they suggested a possibility of derivation from the endometrium.
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Affiliation(s)
- T Hayata
- Department of Obstetrics and Gynecology, Oita Medical University, Japan
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37
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Matsushita T, Matsui N, Yoshiya S, Fujioka H, Kurosaka M. Production of adrenomedullin from synovial cells in rheumatoid arthritis patients. Rheumatol Int 2004; 24:20-4. [PMID: 12709825 DOI: 10.1007/s00296-003-0315-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2002] [Accepted: 03/03/2003] [Indexed: 12/13/2022]
Abstract
It was recently reported that plasma levels of adrenomedullin (AM), identified as a vasorelaxant peptide, are significantly higher in rheumatoid arthritis (RA) patients than in osteoarthritis (OA) patients. The objective of the present study was to elucidate AM production in synovial cells from patients with RA. Adrenomedullin mRNA was detected in cultured synovial cells from RA patients by reverse transcription polymerase chain reaction (RT-PCR). Immunohistochemical analysis demonstrated the presence of AM in synovial cells from RA patients. In addition, we investigated AM levels in knee joint fluids from RA and OA patients. Those from RA patients were elevated approximately threefold over those of OA patients. In this study, we demonstrated for the first time AM expression in synovial cells from RA patients and high levels of AM production in RA joint fluid.
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Affiliation(s)
- T Matsushita
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku Kobe, Hyogo 650-0017, Japan
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Kihara K, Matsui N. Molecular dynamics simulation of diffuse scattering in quartz. Acta Crystallogr A 2002. [DOI: 10.1107/s0108767302095727] [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: 11/10/2022] Open
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39
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Mizutani J, Tsubouchi S, Fukuoka M, Otsuka T, Matsui N. Surgical treatment of the rheumatoid cervical spine in patients aged 70 years or older. Rheumatology (Oxford) 2002; 41:910-6. [PMID: 12154208 DOI: 10.1093/rheumatology/41.8.910] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE To investigate whether surgery is appropriate for elderly rheumatoid arthritis patients who are already approaching their statistical life expectancy. PATIENTS AND METHODS The subjects were 10 patients who underwent cervical spine surgery for rheumatoid arthritis at an age of over 70 yr. The pain grade and neurological deficit class according to Ranawat, peri-operative complications, causes of death and pre-operative cardiopulmonary function were assessed. RESULTS Good pain relief was achieved. Relief of pain enabled the patients, who could not sit up even in bed because of intolerable neck pain, to ride in a wheel chair without using a neck collar. Only one death was related to surgery. Pre-operative cardiopulmonary function was not significantly different compared with that of elderly patients undergoing other surgical procedures. CONCLUSION Surgery is a valuable option for the management of elderly patients with rheumatoid cervical spine since it can improve the quality of life.
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Affiliation(s)
- J Mizutani
- Department of Orthopaedic Surgery, Nagoya City University Medical School, Aichi, Japan
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40
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Waguri-Nagaya Y, Kubota Y, Sekiya I, Otsuka T, Shiomi I, Shimizu H, Tada T, Matsui N. Extensor tendon rupture related to calcium pyrophosphate crystal deposition disease. Rheumatol Int 2002; 21:243-6. [PMID: 12036212 DOI: 10.1007/s00296-002-0176-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We report a rare case of spontaneous rupture of the extensor tendons at the wrist which was shown histologically to be related to calcium pyrophosphate crystal deposition disease. The causes of tendon rupture were chronic synovitis with crystal deposition and a dorsal prominence of the ulnar head.
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Affiliation(s)
- Y Waguri-Nagaya
- Department of Orthopedic Surgery, Nagoya City University Medical School, Japan.
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41
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Muro H, Waguri-Nagaya Y, Otsuka T, Matsui N, Asai K, Kato T. Serum gliostatin levels in patients with rheumatoid factor-negative and -positive rheumatoid arthritis and changes of these levels after surgical treatments. Clin Rheumatol 2002; 20:331-6. [PMID: 11642514 DOI: 10.1007/s100670170022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Gliostatin/platelet-derived endothelial cell growth factor (GLS/PD-ECGF) has a potential for arthritogenic action. The aim of this study was to examine whether measurement of serum GLS can be used to evaluate symptomatic improvements after surgery (arthroplasty or synovectomy) as well as the aggressiveness of disease activity in rheumatoid arthritis (RA). Serum GLS levels were determined by enzyme immunoassay in rheumatoid factor (RF)-positive and -negative RA patients. In those undergoing surgery, levels were measured 3 months before and after the operations. Both RF-positive and -negative RA sera showed higher GLS levels than normal and osteoarthritis sera. Patients undergoing arthroplasty demonstrated a decrease in serum GLS levels after the operations, but patients undergoing synovectomy did not, reflecting the extent of remaining or reproliferating synovial tissues rich in GLS production. These findings suggest that the serum GLS level is a useful indicator for evaluation of synovitis and the systemic efficacy of surgical treatment.
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Affiliation(s)
- H Muro
- Department of Orthopaedic Surgery, Nagoya City University Medical School, Nagoya, Japan
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42
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Asaoka Y, Shikaze Y, Abe K, Anraku K, Fujikawa M, Fuke H, Haino S, Imori M, Izumi K, Maeno T, Makida Y, Matsuda S, Matsui N, Matsukawa T, Matsumoto H, Matsunaga H, Mitchell J, Mitsui T, Moiseev A, Motoki M, Nishimura J, Nozaki M, Orito S, Ormes JF, Saeki T, Sanuki T, Sasaki M, Seo ES, Sonoda T, Streitmatter R, Suzuki J, Tanaka K, Tanizaki K, Ueda I, Wang JZ, Yajima Y, Yamagami Y, Yamamoto A, Yamamoto Y, Yamato K, Yoshida T, Yoshimura K. Measurements of cosmic-ray low-energy antiproton and proton spectra in a transient period of solar field reversal. Phys Rev Lett 2002; 88:051101. [PMID: 11863712 DOI: 10.1103/physrevlett.88.051101] [Citation(s) in RCA: 12] [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: 09/01/2001] [Indexed: 05/23/2023]
Abstract
The energy spectra of cosmic-ray low-energy antiprotons ( *p's) and protons ( p's) have been measured by BESS in 1999 and 2000, during a period covering reversal at the solar magnetic field. Based on these measurements, a sudden increase of the *p/p flux ratio following the solar magnetic field reversal was observed, and it generally agrees with a drift model of the solar modulation.
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Affiliation(s)
- Y Asaoka
- The University of Tokyo, Tokyo 113-0033, Japan
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Akagi M, Matsui N, Mochizuki S, Tasaka K. Inhibitory effect of egualen sodium: a new stable derivative of azulene on histamine release from mast cell-like cells in the stomach. Pharmacology 2002; 63:203-9. [PMID: 11729358 DOI: 10.1159/000056135] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We studied the inhibitory effect of egualen sodium (ES) (sodium 3-ethyl-7-isopropyl-1-azulenesulfonate 1/3 hydrate, KT1-32), a new derivative and more stable compound than azulene, on histamine release from the mucosal histaminocytes and elucidated the mechanism for this action. ES prevented the histamine release from isolated mast cell-like cells of the guinea pig stomach induced by A23187 in a dose-dependent fashion. ES dose-dependently inhibited the histamine release from lung pieces of sensitized guinea pigs induced by an antigen-antibody reaction. ES also inhibited histamine release from rat peritoneal mast cells induced by compound 48/80 or antigen-antibody reaction. ES exhibited the membrane stabilizing activity on DPPC liposomes. These findings suggest that ES may prevent histamine release from histaminocytes induced by various stimuli and the stabilizing action of the cell membrane may be responsible for the inhibition of histamine release.
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Affiliation(s)
- M Akagi
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan.
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Abstract
We undertook 114 arthroscopic meniscal repairs in 111 patients and subsequently carried out second-look arthroscopy to confirm meniscal healing at a mean of 13 months after repair. Stable healing at the repaired site was seen in 90. Of these, however, 13 had another arthroscopy later for a further tear. The mean period between the repair and the observation of a repeat tear was 48 months. Of the 13 patients, 11 had returned to high activity levels (International Knee Documentation Committee level I or II) after the repair. An attempt should be made to preserve meniscal function by repairing tears, but even after arthroscopic confirmation of stable healing repaired menisci may tear again. The long-term rate of healing may not be as high as is currently reported. Second-look arthroscopy cannot predict late meniscal failure and may not be justified as a method of assessment for meniscal healing. Young patients engaged in arduous sporting activities should be reviewed regularly even after arthroscopic confirmation of healing.
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Affiliation(s)
- M. Kurosaka
- Kobe University School of Medicine, Department of Orthopaedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - S. Yoshiya
- Department of Orthopaedic Surgery, Meiwa Hospital, 4-31 Agenaruo, Nishinomiya, Japan
| | - R. Kuroda
- Kobe University School of Medicine, Department of Orthopaedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - N. Matsui
- Kobe University School of Medicine, Department of Orthopaedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - T. Yamamoto
- Kobe University School of Medicine, Department of Orthopaedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - J. Tanaka
- Department of Orthopaedic Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Japan
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Hotta K, Niwa M, Hara A, Ohno T, Wang X, Matsuno H, Kozawa O, Ito H, Kato K, Otsuka T, Matsui N, Uematsu T. The loss of susceptibility to apoptosis in exudated tissue neutrophils is associated with their nuclear factor-kappa B activation. Eur J Pharmacol 2001; 433:17-27. [PMID: 11755130 DOI: 10.1016/s0014-2999(01)01480-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Tissue neutrophils, human salivary neutrophils donated from healthy subjects and synovial fluid neutrophils collected from patients with rheumatoid arthritis were compared with circulating blood neutrophils. Concomitant treatment of circulating blood neutrophils with tumor necrosis factor-alpha (TNF-alpha) and cycloheximide induced neutrophil apoptosis, whereas the same treatment failed to induce significant apoptosis in salivary and synovial fluid neutrophils. Caspase-3 activation by TNF-alpha was observed in these tissue neutrophils, although its activity was significantly weaker than that in circulating blood neutrophils. In circulating blood neutrophils, TNF-alpha induced activation of nuclear factor-kappa B (NF-kappa B), whereas, in tissue neutrophils, NF-kappa B had been already activated without any stimulation, and no further activation was induced by the treatment with TNF-alpha. Furthermore, while pretreatment of neutrophils with an NF-kappa B inhibitor produced typical apoptotic changes in circulating blood neutrophils, this inhibitor did not produce any morphological apoptotic changes induced by TNF-alpha in tissue neutrophils. These results indicate that neutrophils undergo marked functional changes such as altered sensitivity to apoptosis-inducing stimuli in association with their exudation from blood into tissue, and that NF-kappa B activation is involved in the acquisition of resistance to TNF-alpha-induced apoptosis.
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Affiliation(s)
- K Hotta
- Department of Pharmacology, Gifu University School of Medicine, 40-Tsukasamachi, Gifu 500-8705, Japan
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Affiliation(s)
- T Nakazato
- Department of Orthopedics, Chita Kosei Hospital, Aichi, Japan
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47
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Matsui N, Waguri-Nagaya Y, Taneda Y. Diagnosis and therapy of rheumatoid arthritis in the future. Mod Rheumatol 2001. [DOI: 10.1007/s10165-001-8057-z] [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: 11/28/2022]
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48
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Abstract
Abstract Rheumatoid arthritis (RA) is a chronic, inflammatory, systemic disease characterized by joint pain and destruction. We describe the importance of early diagnosis, recording magnetic resonance images images at an early stage, monitoring disease progression using gliostatin purified in our laboratory, and sugar-chain analysis of RA serum IgG. For treatment of RA, cyclooxygenase-2-selective inhibitors, disease-modifying antirheumatic drugs, biological products, and the possibility of gene therapy are discussed. The development of therapeutic methods based on the elucidation of the pathology of RA has progressed markedly in the past decade, and further progress and the development of an early diagnostic method are expected.
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Affiliation(s)
- N Matsui
- Department of Orthopedic Surgery, Nagoya City University, Medical School , 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601 , Japan
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Kamiyama F, Maeda T, Yamane T, Li YH, Ogukubo O, Otsuka T, Ueyama H, Takahashi S, Ohkubo I, Matsui N. Inhibition of vitronectin-mediated haptotaxis and haptoinvasion of MG-63 cells by domain 5 (D5(H)) of human high-molecular-weight kininogen and identification of a minimal amino acid sequence. Biochem Biophys Res Commun 2001; 288:975-80. [PMID: 11689005 DOI: 10.1006/bbrc.2001.5864] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We found that human kinin-free high-molecular-weight kininogen (kf-HK) significantly inhibited vitronectin-mediated migration (haptotaxis) and invasive potentiation (haptoinvasion) of osteosarcoma (MG-63) cells but that HK, LK, the common heavy chain of HK and LK, and the light chain (D6(H)) of HK had no inhibitory effect. Recombinant GST-D5(H) (histidine-rich region of HK) obtained from Escherichia coli. (BL21) also inhibited both haptotaxis and haptoinvasion to about 30% of the control level in a dose-dependent manner. These findings suggest that a specific region of D5(H) is responsible for the inhibition of cell haptotaxis and haptoinvasion. Among the seven synthetic peptides covering D5(H), peptide H(479)KHGHGHGKHKNKGK(493) (P-5) inhibited both haptotaxis and haptoinvasion in a dose-dependent manner, suggesting that P-5 could possibly be utilized to prevent primary and secondary metastases of tumor cells.
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Affiliation(s)
- F Kamiyama
- Department of Orthopedics, Nagoya City University Medical School, Mizuho-ku, Nagoya, 467-8601, Japan
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Otsuka T, Yonezawa M, Kamiyama F, Matsushita Y, Matsui N. Results of surgery and radio-hyperthermo-chemotherapy for patients with soft-tissue sarcoma. Int J Clin Oncol 2001; 6:253-8. [PMID: 11723748 DOI: 10.1007/pl00012114] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Between 1990 and 1999, we performed radio-hyperthermo-chemotherapy (RHC) in 44 patients with high-grade soft-tissue sarcomas of the limbs. METHODS Radiotherapy involved the delivery of radiation at a dose of 2 Gy once daily on 16 days, to give a total dose of 32 Gy. Hyperthermia was conducted once a week, with a total of five sessions. Chemotherapy was performed by implanting a reservoir and administering cisplatin (3 mg/kg) three times, and pinorubin (an adriamycin derivative; 1 mg/kg) twice by intra-arterial infusion, at weekly intervals. These drugs were administered alternately during hyperthermia sessions. RESULTS Tumor shrinkage was observed in 98% (43/44) of the patients. Of the 36 patients with M0 tumors, 30 were disease-free at final follow-up, 2 had no evidence of disease, 1 was alive with disease, and 3 had died of the disease. Amputation was required only in the first patient, and the affected limb was preserved in the other 43 patients. The surgical margin was wide in 9 patients and marginal in 29 patients, and intralesional excision was performed in 5 patients. There was recurrence in only 1 of the 44 patients. CONCLUSION RHC is currently the most potent and relatively safe treatment method for high-grade soft-tissue sarcomas that is available clinically.
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Affiliation(s)
- T Otsuka
- Department of Orthopaedic Surgery, Nagoya City University Medical School, 1 Kawasumi, Mizuho-ku, Nagoya 467-8601, Japan.
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