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Zogo Y, Hoshino K, Serizawa K, Iwase A, Tsuji T. Psychometric Properties of the Japanese Version of the Edmonton Functional Assessment Tool 2. J Pain Symptom Manage 2024; 67:157-166. [PMID: 37944624 DOI: 10.1016/j.jpainsymman.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 09/09/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023]
Abstract
CONTEXT Physical symptoms such as pain and cancer-related fatigue limit physical function and activities of daily living among patients with terminal cancer, which can lead to a decline in quality of life. Therefore, comprehensive functional impairments should be evaluated to determine the progression of the disease and the effectiveness of palliative treatment. OBJECTIVE To validate the psychometric properties of the Japanese version of the Edmonton Functional Assessment Tool 2 (EFAT2-J). METHODS We developed a Japanese version of the EFAT-2 in accordance with international guidelines. To verify the reliability and validity of the EFAT2-J, patients were evaluated by a physiotherapist and a nurse separately, and correlations with existing evaluation scales for physical function, physical symptoms, and quality of life were analyzed, respectively. The significance level was set at 5%. RESULTS Twenty patients participated in the reliability measurement. The average EFAT2-J scores were 7.95 ± 4.12 for physical therapists and 7.20 ± 4.23 for nurses, and the intraclass correlation coefficient was 0.95. The weighted kappa coefficient (κ) for each item was 0.57-1.00. Fifty-five patients participated in the validity measurement. The EFAT2-J showed significant correlations with Eastern Cooperative Oncology Group Performance Status and the Karnofsky Performance Scale, Barthel Index, and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 15-Palliative Care sub-item "physical function." CONCLUSION These results indicate that the EFAT2-J has robust psychometric properties and is useful for evaluating physical function in patients with terminal cancer, and thus may be an acceptable clinical instrument in research and practice.
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Affiliation(s)
- Yuto Zogo
- Department of Rehabilitation Medicine/ Palliative Care Team (Y.Z., K.S., A.I.), Yokohama City Minato Red Cross Hospital, Kanagawa, Japan
| | - Keita Hoshino
- Department of Palliative Care Nursing/ Palliative Care Team (K.H.), Yokohama City Minato Red Cross Hospital, Kanagawa, Japan
| | - Kensuke Serizawa
- Department of Rehabilitation Medicine/ Palliative Care Team (Y.Z., K.S., A.I.), Yokohama City Minato Red Cross Hospital, Kanagawa, Japan
| | - Akira Iwase
- Department of Rehabilitation Medicine/ Palliative Care Team (Y.Z., K.S., A.I.), Yokohama City Minato Red Cross Hospital, Kanagawa, Japan
| | - Tetsuya Tsuji
- Department of Rehabilitation Medicine (T.T.) Keio University School of Medicine, Tokyo, Japan.
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Sawabe K, Imanishi-Kobayashi N, Maekawa Y, Higa Y, Kim KS, Hoshino K, Tsuda Y, Hayashi T, Nihei N, Takai K, Kurihara T, Kobayashi M. Updated distribution of anopheline mosquitoes in Hokkaido, Japan, and the first evidence of Anopheles belenrae in Japan. Parasit Vectors 2021; 14:494. [PMID: 34565449 PMCID: PMC8474741 DOI: 10.1186/s13071-021-04995-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 09/08/2021] [Indexed: 11/24/2022] Open
Abstract
Background In Hokkaido, northern island of Japan, at least seven cases of falciparum malaria were reported by 1951. A survey conducted at that time was unsuccessful in implicating any mosquito species as the possible vector. Although active anopheline mosquito surveillance continued until the middle of the 1980s, there is very limited information on their current status and distribution in Japan. Therefore, this study is an update on the current status and distribution of anopheline mosquitoes in Hokkaido based on a 15-year entomological surveillance between 2001 and 2015. Methods A survey of mosquitoes was conducted at 22 sites in Hokkaido, Japan, from 2001 to 2015. Adult mosquitoes were collected from cowsheds, lakesides, shrubs, and habitats ranging from open grassland to coniferous forest using a Centers for Disease Control and Prevention (CDC) miniature light trap enhanced with dry ice, aspirators, and sweeping nets. Larvae were collected from lakes, ponds, swamps, stagnant and flowing rivers, and paddy fields. All specimens were morphologically identified and subjected to polymerase chain reaction (PCR)-based sequence analysis of the internal transcribed spacer 2 ( ITS2) region of rDNA. Phylogenetic trees were reconstructed using the neighbor-joining method with the Kimura 2-parameter model on MEGA X version 10.2.2. Results A total of 46 anopheline specimens were used for the phylogenetic analysis. During the survey, a new member of the Anopheles hyrcanus group, An. belenrae, was discovered in eastern Hokkaido in 2004. Anopheles belenrae has since then been consistently found and confirmed to inhabit only this area of Japan. Four members of the An. hyrcanus group, namely An. belenrae, An. engarensis, An. lesteri, and An. sineroides, have been found in Hokkaido. The results also suggest that An. sinensis, formerly a dominant species throughout Japan, has become a rarely found species, at least currently in Hokkaido. Conclusion The updated distribution of anopheline mosquitoes in Hokkaido, Japan, showed considerable differences from that observed in previous surveys conducted from 1969 to 1984. In particular, areas where An. sinensis was previously distributed may have been greatly reduced in Hokkaido. The phylogenetic analysis revealed a novel An. hyrcanus group member identified as An. belenrae, described in South Korea in 2005. It is interesting that An. belenrae was confirmed to inhabit only eastern Hokkaido, Japan. Graphical abstract ![]()
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Affiliation(s)
- Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan.
| | - Nozomi Imanishi-Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan.,Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Nagasaki, 852-8523, Japan
| | - Yoshihide Maekawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan
| | - Yukiko Higa
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan
| | - Kyeong Soon Kim
- Joint Department of Veterinary Medicine, Tottori University, Tottori, Tottori, 680-8553, Japan
| | - Keita Hoshino
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan
| | - Yoshio Tsuda
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan
| | - Toshihiko Hayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan
| | - Naoko Nihei
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan
| | - Kenji Takai
- Department of Immunology and Medical Zoology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, 216-8511, Japan
| | - Takeshi Kurihara
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan
| | - Mutsuo Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku, Tokyo, 162-8640, Japan
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Asakura N, Hoshino K, Homma Y, Sakamoto Y. Simulation studies of divertor detachment and critical power exhaust parameters for Japanese DEMO design. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2020.100864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hayakawa SH, Agari K, Ahn JK, Akaishi T, Akazawa Y, Ashikaga S, Bassalleck B, Bleser S, Ekawa H, Endo Y, Fujikawa Y, Fujioka N, Fujita M, Goto R, Han Y, Hasegawa S, Hashimoto T, Hayakawa T, Hayata E, Hicks K, Hirose E, Hirose M, Honda R, Hoshino K, Hoshino S, Hosomi K, Hwang SH, Ichikawa Y, Ichikawa M, Imai K, Inaba K, Ishikawa Y, Ito H, Ito K, Jung WS, Kanatsuki S, Kanauchi H, Kasagi A, Kawai T, Kim MH, Kim SH, Kinbara S, Kiuchi R, Kobayashi H, Kobayashi K, Koike T, Koshikawa A, Lee JY, Ma TL, Matsumoto SY, Minakawa M, Miwa K, Moe AT, Moon TJ, Moritsu M, Nagase Y, Nakada Y, Nakagawa M, Nakashima D, Nakazawa K, Nanamura T, Naruki M, Nyaw ANL, Ogura Y, Ohashi M, Oue K, Ozawa S, Pochodzalla J, Ryu SY, Sako H, Sato S, Sato Y, Schupp F, Shirotori K, Soe MM, Soe MK, Sohn JY, Sugimura H, Suzuki KN, Takahashi H, Takahashi T, Takeda T, Tamura H, Tanida K, Theint AMM, Tint KT, Toyama Y, Ukai M, Umezaki E, Watabe T, Watanabe K, Yamamoto TO, Yang SB, Yoon CS, Yoshida J, Yoshimoto M, Zhang DH, Zhang Z. Observation of Coulomb-Assisted Nuclear Bound State of Ξ^{-}-^{14}N System. Phys Rev Lett 2021; 126:062501. [PMID: 33635678 DOI: 10.1103/physrevlett.126.062501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/19/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
In an emulsion-counter hybrid experiment performed at J-PARC, a Ξ^{-} absorption event was observed which decayed into twin single-Λ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as Ξ^{-}+^{14}N→_{Λ}^{10}Be+_{Λ}^{5}He. For the binding energy of the Ξ^{-} hyperon in the Ξ^{-}-^{14}N system a value of 1.27±0.21 MeV was deduced. The energy level of Ξ^{-} is likely a nuclear 1p state which indicates a weak ΞN-ΛΛ coupling.
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Affiliation(s)
- S H Hayakawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Agari
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Korea
| | - T Akaishi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - Y Akazawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - S Ashikaga
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - B Bassalleck
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - S Bleser
- Helmholtz Institute Mainz, 55099 Mainz, Germany
| | - H Ekawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - Y Endo
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Fujikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Fujioka
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Fujita
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - R Goto
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Han
- Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - S Hasegawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Hashimoto
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Hayakawa
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - E Hayata
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Hicks
- Department of Physics & Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - E Hirose
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - M Hirose
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Honda
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Hoshino
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - S Hoshino
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - K Hosomi
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S H Hwang
- Korea Research Institute of Standards and Science, Daejeon 34113, Korea
| | - Y Ichikawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - M Ichikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, RIKEN, Wako 351-0198, Japan
| | - K Imai
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Inaba
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - H Ito
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Ito
- Department of Physics, Nagoya University, Nagoya 464-8601, Japan
| | - W S Jung
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kanatsuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Kanauchi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Kasagi
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - T Kawai
- Center for Advanced Photonics, RIKEN, Wako 351-0198, Japan
| | - M H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kinbara
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - R Kiuchi
- Institute of High Energy Physics, Beijing 100049, China
| | - H Kobayashi
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Kobayashi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - T Koike
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Koshikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - J Y Lee
- Department of Physics, Seoul National University, Seoul 08826, Korea
| | - T L Ma
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| | - S Y Matsumoto
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, RIKEN, Wako 351-0198, Japan
| | - M Minakawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Miwa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A T Moe
- Department of Physics, Lashio University, Lashio 06301, Myanmar
| | - T J Moon
- Department of Physics, Seoul National University, Seoul 08826, Korea
| | - M Moritsu
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Nagase
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Nakada
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - M Nakagawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - D Nakashima
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Nakazawa
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - T Nanamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - M Naruki
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - A N L Nyaw
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - Y Ogura
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Ohashi
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Oue
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - S Ozawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - J Pochodzalla
- Helmholtz Institute Mainz, 55099 Mainz, Germany
- Institut fur Kernphysik, Johannes Gutenberg-Universitat, 55099 Mainz, Germany
| | - S Y Ryu
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - H Sako
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S Sato
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - Y Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - F Schupp
- Helmholtz Institute Mainz, 55099 Mainz, Germany
| | - K Shirotori
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - M M Soe
- Department of Physics, University of Yangon, Yangon 11041, Myanmar
| | - M K Soe
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - J Y Sohn
- Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - H Sugimura
- Accelerator Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K N Suzuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Takahashi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takahashi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Tamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - A M M Theint
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - K T Tint
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Toyama
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Ukai
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - E Umezaki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Watabe
- Department of Physics, Nagoya University, Nagoya 464-8601, Japan
| | - K Watanabe
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T O Yamamoto
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S B Yang
- Department of Physics, Korea University, Seoul 02841, Korea
| | - C S Yoon
- Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - J Yoshida
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Yoshimoto
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - D H Zhang
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| | - Z Zhang
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
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Oka S, Kai T, Hoshino K, Watanabe K, Nakamura J, Abe M, Watanabe A. A comparison of rate control and rhythm control in tachycardia induced cardiomyopathy patients with persistent atrial flutter. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0693] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background/Introduction
Tachycardia induced cardiomyopathy (TIC) is a potentially reversible dysfunction of the left ventricle (LV) caused by tachyarrhythmias. Early recognition of TIC and treatment of the culprit arrhythmia using pharmacological therapy or catheter ablation results in the recovery of LV function. For atrial flutter (AFL)-induced TIC, rhythm control strategy, such as catheter ablation has been recommended. On the other hand, the efficacy of rate control strategy has remained unclear due to the difficulty of control with arrhythmic medications. However, not all patients can take rhythm control treatments due to their backgrounds.
Purpose
The aim of this cohort study was to establish whether rate control strategy using β-blocker is as effective as invasive rhythm control strategy for the recovery of LV function in patients with TIC due to AFL.
Methods
We prospectively assessed 47 symptomatic non-ischaemic heart failure (HF) patients with left ventricular ejection fraction (LVEF) below 50% and suspected TIC induced by persistent AFL. Patients were divided into rhythm control strategy group (n=22, treatment: catheter ablation, electrical cardioversion) and rate control strategy group (n=25, treatment: bisoprolol). As a sub-group study, the rate control strategy group was divided into the strict rate control group (n=12, average heart rate below 80 bpm) and lenient rate control group (n=13, average heart rate below 110 bpm). The primary outcome was the recovery of LV function, defined as an increase of LVEF over 20% or to a value of 55% or greater after 6 months.
Results
There were no significant differences in baseline AFL heart rate, New York Heart Association class, LVEF, estimated glomerular filtration rate, and brain natriuretic peptide between the two groups. A greater proportion of patients who showed the recovery of LVEF after 6 months belonged to the rhythm control strategy group (90.9% vs. 52.0%, p=0.004). The cumulative incidence of HF re-hospitalization was significantly higher in the rate control strategy group than in the rhythm control strategy group (hazard ratio: 4.90, 95% CI: 1.06–22.69). As a result of sub-group study, LVEF recovery was greater in the strict rate control group compared to the lenient rate control group (75.0% vs. 30.8%, p=0.027)
Conclusion
Rate control strategy was significantly inferior to rhythm control strategy for the recovery of LVEF in TIC patients with persistent AFL. Rhythm control should be the first choice in the management of TIC with AFL, and strict rate control should be an alternative if rhythm control is not available.
Primary outcomes
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Oka
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - T Kai
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - K Hoshino
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - K Watanabe
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - J Nakamura
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - M Abe
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - A Watanabe
- Fujieda Municipal General Hospital, Fujieda, Japan
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Takasaki A, Kurita T, Masuda J, Dohi K, Hoshino K, Tanigawa T, Saito Y, Kitamura T, Kakimoto H, Setsuda M, Makino K, Ichikawa T, Ito M. P1717The clinical impact of intra-aortic balloon pumping for acute coronary syndrome from Mie ACS registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0472] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Intra-Aortic Balloon Pumping (IABP) was widespread used in cases of Acute Coronary Syndrome (ACS) at daily clinical situation in Japan, even though the efficacy of IABP in AMI patients with cardiogenic shock was not proved. The aim of this study was to investigate the efficacy of IABP use in ACS patients in Japan.
Methods
We investigated 2-year all-cause-mortality of 2,660 enrolled ACS patients including 358 patients with IABP and 2,302 patients without IABP from Mie ACS registry.
Results
We compared a 1:1 propensity score-matched cohort of 426 ACS patients with or without IABP (n=213, respectively). 2-year mortality was significantly higher in patients with IABP than without IABP (p=0.02, Figure A). In addition, IABP usage was independent predictor of mortality with hazard ratio of 1.6 by multivariate analysis. However, 2-year mortality was not statistically different between 2 groups only when analyzed patients with shock (p=0.60, Figure B).
Figure 1
Conclusion
IABP was not commonly recommended in ACS patients. However, IABP was might as well used in some situation especially in shock.
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Affiliation(s)
| | - T Kurita
- Mie University Hospital, Tsu, Japan
| | - J Masuda
- Mie Prefectural General Medical Center, Yokkaichi, Japan
| | - K Dohi
- Mie University Hospital, Tsu, Japan
| | - K Hoshino
- Nagai Hospital, Cardiology, Tsu, Japan
| | - T Tanigawa
- Matsusaka Chuo General Hospital, Cardiology, Matsusaka, Japan
| | - Y Saito
- Suzuka Kaisei Hospital, Suzuka, Japan
| | - T Kitamura
- Suzuka Chuo General Hospital, Cardiology, Suzuka, Japan
| | - H Kakimoto
- Saiseikai Matsusaka General Hospital, Matsusaka, Japan
| | | | - K Makino
- Mie Prefectural General Medical Center, Yokkaichi, Japan
| | - T Ichikawa
- Kuwana City Medical Center, Kuwana, Japan
| | - M Ito
- Mie University Hospital, Tsu, Japan
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Takasaki A, Kurita T, Masuda J, Dohi K, Hoshino K, Tanigawa T, Saito Y, Kitamura T, Kakimoto H, Setsuda M, Makino K, Ichikawa T, Ito M. P2659Difference of prognostic impact of Killip classification in ACS patients with or without hemodialysis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0979] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Cardiovascular deaths are more frequently in hemodialysis (HD) patients compared to general population. However, difference of prognosis of acute coronary syndrome (ACS) patients with or without HD were not well evaluated.
Purpose
The purpose of this study was to evaluate the clinical and prognostic characteristics of ACS patients with HD compared to that of ACS patients without HD.
Methods
We investigated 3427 ACS patients including 63 HD and 3364 non-HD patients between 2013 and 2017 using date from Mie ACS registry, a retrospective and multicenter registry. The primary outcome was defined as all-cause mortality.
Results
HD patients showed significantly higher prevalence of diabetes mellitus, past treatment of coronary artery disease, history of myocardial infarction and Killip ≥2 compared to non-HD patients (p<0.05, respectively). During the follow-up periods (median 719 days), 425 (12.4%) patients experienced all-cause death. HD patients demonstrated the higher all-cause mortality rate compared to that of non-HD patients during the follow-up (11.9% versus 38.1%, p<0.001, chi square). Kaplan Meier survival curves demonstrated that HD and non-HD patients with Killip 1 showed similar 30-day mortality, and Killip ≥2 patients also showed similar prognosis (Left side of figure). On the other hand, all cause mortality at 2 years were higher in Killip 1 HD patients compared to Killip 1 non-HD patients and similar between Killip 1 HD patients and Killip ≥2 non-HD patients in the 30 days landmark analysis (Right side of figure). In addition, cox regression analyses for all cause mortality demonstrated that HD was a strongest independent prognostic factor not of 30-day mortality but of after 30-day mortality with hazard ratio of 4.09 (95% confidential interval: 2.32–7.21, p<0.001).
Figure 1
Conclusion
Careful management are required in chronic phase for ACS patients with HD even in Killip 1 classification.
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Affiliation(s)
| | - T Kurita
- Mie University Hospital, Tsu, Japan
| | - J Masuda
- Mie Prefectural General Medical Center, Yokkaichi, Japan
| | - K Dohi
- Mie University Hospital, Tsu, Japan
| | - K Hoshino
- Nagai Hospital, Cardiology, Tsu, Japan
| | - T Tanigawa
- Matsusaka Chuo General Hospital, Cardiology, Matsusaka, Japan
| | - Y Saito
- Suzuka Kaisei Hospital, Suzuka, Japan
| | - T Kitamura
- Suzuka Chuo General Hospital, Cardiology, Suzuka, Japan
| | - H Kakimoto
- Saiseikai Matsusaka General Hospital, Matsusaka, Japan
| | | | - K Makino
- Mie Prefectural General Medical Center, Yokkaichi, Japan
| | - T Ichikawa
- Kuwana City Medical Center, Kuwana, Japan
| | - M Ito
- Mie University Hospital, Tsu, Japan
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8
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Ueno T, Wada M, Hoshino K, Matsuura T, Okajima H, Okuyama H. Impact of Donor Age on Outcome of Intestinal Transplantation in Japan. Transplant Proc 2018; 50:2775-2778. [PMID: 30401396 DOI: 10.1016/j.transproceed.2018.04.021] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/25/2018] [Accepted: 04/09/2018] [Indexed: 01/10/2023]
Abstract
BACKGROUND Donor age for intestinal transplantation (ITx) is somewhat younger than that for other solid organs. Clear criteria for adequate donors have not been established. There is a donor scarcity for ITx in Japan due to the shortage of young donors. METHODS We reviewed outcomes associated with ITx in Japan based on donor age for cadaveric and living donation. RESULTS Standardized report forms were sent to all known ITx programs, asking for information on ITxs performed between 1996 and 2016. All programs responded. Patient and graft survival estimates were obtained using the Kaplan-Meier method. Five institutions provided data on 27 grafts in 24 patients. There were 14 cadaveric and 13 living donor transplants. Median donor age for ITxs was 40 (range, 17-60) years. Graft survival at 5 years was 66% for patients >40 years old (n = 18) and 47% for those <40 years old (n = 9), not a statistically significant difference (P = .49). Graft survival at 5 years was 60% in those >50 years old (n = 5) and 57% for those <50 years old (n = 22), again not a significant difference (P = .27). CONCLUSION There is no difference in survival between for those with donor age <40 vs >40 years. Donor age for ITx can be extended from >40 to up to 50 years, which may help to mitigate the donor shortage. It will be necessary to clarify the donor criteria for ITx through accumulation of further data on ITx.
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Affiliation(s)
- T Ueno
- Department of Pediatric Surgery, Osaka University, Osaka, Japan.
| | - M Wada
- Department of Pediatric Surgery, Tohoku University, Miyagi, Japan
| | - K Hoshino
- Department of Pediatric Surgery, Keio University, Tokyo, Japan
| | - T Matsuura
- Department of Pediatric Surgery, Kyushu University, Fukuoka, Japan
| | - H Okajima
- HBP Surgery/Transplantation, Kyoto University, Kyoto, Japan
| | - H Okuyama
- Department of Pediatric Surgery, Osaka University, Osaka, Japan
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9
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Ueno T, Wada M, Hoshino K, Matsuura T, Ida S, Okuyama H. Three-Year Prospective Follow-up of Potential Pediatric Candidate for Intestinal Transplantation. Transplant Proc 2018; 50:2779-2782. [DOI: 10.1016/j.transproceed.2018.03.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 03/06/2018] [Indexed: 11/16/2022]
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10
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Hoshino K, Sugiyama M, Date T, Maruwaka S, Arakaki S, Shibata D, Maeshiro T, Hokama A, Sakugawa H, Kanto T, Fujita J, Mizokami M. Phylogenetic and phylodynamic analyses of hepatitis C virus subtype 1a in Okinawa, Japan. J Viral Hepat 2018; 25:976-985. [PMID: 29577516 DOI: 10.1111/jvh.12898] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 02/02/2018] [Indexed: 12/28/2022]
Abstract
Okinawa Island, located in Southern Japan, has a higher prevalence rate of hepatitis C virus subtype 1a (HCV-1a) infection than that in mainland Japan. Okinawa has a history of US military occupation after World War II. To elucidate the transmission history of HCV-1a in Okinawa, 26 whole-genome sequences were obtained from 29 patients during 2011-2016. Phylogenetic trees were reconstructed to identify the origin and characteristics of HCV-1a in Okinawa with epidemiological information. A phylogenetic tree based on whole-genome sequencing revealed that all of the samples were located below the US branches. Additionally, we identified one cluster comprised of 17 strains (Okinawa, n = 16; United States, n = 1). The majority of the patients in this cluster were people who inject drugs (PWID), indicating the presence of a people who inject drugs (PWID) cluster. Subsequently, Bayesian analyses were employed to reveal viral population dynamics. Intriguingly, a phylodynamic analysis uncovered a substantial increase in effective population size of HCV-1a from 1965 to 1980 and a slight increase in mid-2000, which were associated with an increase in illicit drug use in Okinawa. The estimated divergence time of the PWID cluster was 1967.6 (1964.2-1971.1). These findings suggest that HCV-1a was introduced into Okinawa from the United States in the late 1960s, coincident with the Vietnam War. Subsequently, HCV-1a might have spread among the Japanese population with the spread of injecting drug use. Our study provides an understanding of HCV transmission dynamics in Okinawa, as well as the key role of PWID in HCV transmission.
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Affiliation(s)
- K Hoshino
- Genome Medical Science Project, National Center for Global Health and Medicine, Chiba, Japan.,Department of Infectious, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - M Sugiyama
- Genome Medical Science Project, National Center for Global Health and Medicine, Chiba, Japan
| | - T Date
- Genome Medical Science Project, National Center for Global Health and Medicine, Chiba, Japan
| | - S Maruwaka
- Department of Infectious, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - S Arakaki
- Department of Infectious, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - D Shibata
- Digestive Division, Heart Life Hospital, Okinawa, Japan
| | - T Maeshiro
- Department of Infectious, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - A Hokama
- Department of Infectious, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - H Sakugawa
- Digestive Division, Heart Life Hospital, Okinawa, Japan
| | - T Kanto
- Department of Liver Diseases, National Center for Global Health and Medicine, Chiba, Japan
| | - J Fujita
- Department of Infectious, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - M Mizokami
- Genome Medical Science Project, National Center for Global Health and Medicine, Chiba, Japan
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11
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Ito H, Masuda J, Takasaki A, Ichikawa K, Sato Y, Takeuchi T, Kakuta K, Matsuda A, Nakajima H, Omura T, Sawai T, Hoshino K, Seko T, Kitamura T, Ito M. P6043Prognostic impact of a chronic total occlusion in a non-infarct-related artery and left ventricular ejection fraction in patients with acute myocardial infarction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6043] [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: 11/13/2022] Open
Affiliation(s)
- H Ito
- Ise Red Cross Hospital, cardiology, Ise, Japan
| | | | | | | | - Y Sato
- Mie CCU Network, Tsu, Japan
| | | | | | | | | | | | | | | | - T Seko
- Mie CCU Network, Tsu, Japan
| | | | - M Ito
- Mie CCU Network, Tsu, Japan
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12
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Fukuoka S, Kurita T, Dohi K, Takasaki A, Nakata T, Fujimoto N, Masuda J, Hoshino K, Tanigawa T, Fujii E, Koyabu S, Ito M. P3660Clinical usefulness of instantaneous wave-free ratio for evaluation of coronary artery lesion with prior myocardial infarction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3660] [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: 11/14/2022] Open
Affiliation(s)
- S Fukuoka
- Mie University Hospital, Cardiology, Tsu, Japan
| | - T Kurita
- Mie University Hospital, Cardiology, Tsu, Japan
| | - K Dohi
- Mie University Hospital, Cardiology, Tsu, Japan
| | - A Takasaki
- Matsusaka General Hospital, Cardiology, Matsusaka, Japan
| | - T Nakata
- Mie Prefecture General Medical Center, Cardiology, Yokkaichi, Japan
| | - N Fujimoto
- Mie University Hospital, Cardiology, Tsu, Japan
| | - J Masuda
- Mie University Hospital, Cardiology, Tsu, Japan
| | - K Hoshino
- Nagai Hospital, Cardiology, Tsu, Japan
| | - T Tanigawa
- Matsusaka General Hospital, Cardiology, Matsusaka, Japan
| | - E Fujii
- Mie University Hospital, Cardiology, Tsu, Japan
| | - S Koyabu
- Owase General Hospital, Cardiology, Owase, Japan
| | - M Ito
- Mie University Hospital, Cardiology, Tsu, Japan
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13
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Ilham SJ, Chen L, Guo T, Emadi S, Hoshino K, Feng B. In vitro single-unit recordings reveal increased peripheral nerve conduction velocity by focused pulsed ultrasound. Biomed Phys Eng Express 2018; 4. [PMID: 30410792 DOI: 10.1088/2057-1976/aabef1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Ultrasound that is widely used in medical diagnosis has drawn growing interests as a noninvasive means of neuromodulation. Focused pulsed ultrasound (FPUS) effectively modulates neural encoding and transmission in the peripheral nervous system (PNS) with unclear mechanism of action, which is further confounded by contradictory experimental outcomes from recordings of compound action potentials (CAP). To address that, we developed a novel in vitro set up to achieve simultaneous single-unit recordings from individual mouse sciatic nerve axon and systematically studied the neuromodulation effects of FPUS on individual axon. Unlike previous CAP recordings, our single-unit recordings afford superior spatial and temporal resolution to reveal the subtle but consistent effects of ultrasonic neuromodulation. Our results indicate that, 1) FPUS did not evoke action potentials directly in mouse sciatic nerve at all the tested intensities (spatial peak temporal average intensity, ISPTA of 0.91 to 28.2 W/cm2); 2) FPUS increases the nerve conduction velocity (CV) in both fast-conducting A- and slow-conducting C- type axons with effects more pronounced at increased stimulus duration and intensity; and 3) effects of increased CV is reversible and cannot be attributed to the change of local temperature. Our results support existing theories of non-thermal mechanisms underlying ultrasonic neuromodulation with low-intensity FPUS, including NICE, flexoelectricity, and solition models. This work also provides a solid experimental basis to further advance our mechanistic understandings of ultrasonic neuromodulation in the PNS.
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Affiliation(s)
- S J Ilham
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - L Chen
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - T Guo
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - S Emadi
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - K Hoshino
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - B Feng
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
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14
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Kawasaki A, Mizushima Y, Matsui S, Hoshino K, Yano S, Kitagawa M. A Case of T-Cell Lymphoma Accompanying Marked Eosinophilia, Chronic Eosinophilic Pneumonia and Eosinophilic Pleural Effusion. A Case Report. Tumori 2018; 77:527-30. [PMID: 1803719 DOI: 10.1177/030089169107700616] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A 57-year-old woman was admitted to our hospital for lumbago, weight loss and weakness of her right lower extremity. Leukocytosis was evident with marked eosinophilia (65.5 % = 46,000/mm3), and the chest roentgenogram showed diffuse reticular shadows throughout both lung fields and a left pleural effusion. The pleural effusion contained 22.4 % eosinophils with no immature cells. Biopsy of a thumb-sized mass on the chest wall revealed a T-cell lymphoma of pleomorphic type. The diffuse pulmonary shadow was diagnosed as chronic eosinophilic pneumonia by autopsy. This was a relatively rare case of T-cell lymphoma, in which an eosinophilic pneumonia and eosinophilic pleural effusion were observed.
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Affiliation(s)
- A Kawasaki
- First Department of Internal Medicine, Toyama Medical and Pharmaceutical University, Japan
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15
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Yoshizaki A, Aoi Y, Yamamoto T, Murata E, Okada S, Matsuzawa S, Hoshino K, Kato-Nishimura K, Miyata R, Tachibana M, Mohri I, Taniike M. Development of an interactive smartphone application for the improvement of Japanese infants' sleep habits. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.1056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Hoshino K, Irie Y, Mizunuma M, Kawano K, Kitamura T, Ishikura H. Incidence of elevated procalcitonin and presepsin levels after severe trauma: a pilot cohort study. Anaesth Intensive Care 2017; 45:600-604. [PMID: 28911289 DOI: 10.1177/0310057x1704500510] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Procalcitonin (PCT) and presepsin (PSEP) are useful biomarkers for diagnosing sepsis; however, elevated PCT and PSEP levels may be observed in conditions other than sepsis. We hypothesised that PCT and PSEP levels could increase after severe traumatic injuries. Trauma patients with an Injury Severity Score of ≥16 from October 2013 to September 2015 were enrolled in our study. We examined PCT and PSEP levels and their positive rates on days 0 and 1. PCT and PSEP levels on days 0 and 1 were compared. Risk factors for increasing sepsis biomarker levels were identified by multivariate logistic regression analyses. In this study, 75 patients were included. PCT levels on days 0 and 1 were 0.1±0.4 and 1.8±6.3 ng/ml, respectively (P=0.02). PSEP levels on days 0 and 1 were 221±261 and 222±207 pg/ml, respectively (P=0.98). As per multivariate logistic regression analyses, packed red blood cell (PRBC) transfusion was the only independent risk factor for higher PCT levels on day 1 (P=0.04). Using PCT to diagnose sepsis in trauma patients on day 1 requires caution. PRBC transfusion was found to be a risk factor for increasing PCT levels. On the other hand, PSEP levels were not affected by trauma during the early phases.
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17
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Kobayashi T, Isayama A, Sawahata M, Suzuki S, Terakado M, Hiranai S, Wada K, Sato Y, Hinata J, Yokokura K, Hoshino K, Kajiwara K, Sakamoto K, Moriyama S. Dual Frequency ECRF System Development for JT-60SA. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16895] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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)
- T. Kobayashi
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - A. Isayama
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - M. Sawahata
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - S. Suzuki
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - M. Terakado
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - S. Hiranai
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - K. Wada
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - Y. Sato
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - J. Hinata
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - K. Yokokura
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - K. Hoshino
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - K. Kajiwara
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - K. Sakamoto
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
| | - S. Moriyama
- Japan Atomic Energy Agency: Mukoyama 801-1, Naka, Ibaraki, 311-0193 Japan
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18
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Hida S, Chikamori T, Igarashi Y, Saitoh T, Hirose K, Yamashita J, Murata N, Hoshino K, Hatano T, Tanaka H, Yamashina A. P2969Comparison of diagnostic performance of cadmium-zinc-telluride camera system between 201Tl and 99mTc-radiotracers as assessed by fractional flow reserve. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p2969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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19
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Shimazu M, Kato Y, Kawachi S, Tanabe M, Hoshino K, Wakabayashi G, Kitagawa Y, Kitajima M. Impact of Portal Hemodynamic Changes in Partial Liver Grafts on Short-Term Graft Regeneration in Living Donor Liver Transplantation. Transplant Proc 2017; 48:2747-2755. [PMID: 27788812 DOI: 10.1016/j.transproceed.2016.06.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 05/20/2016] [Accepted: 06/22/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Regeneration of partial liver grafts is critical for successful living donor liver transplantation (LDLT), especially in adult recipients. The purpose of this study was to investigate the intraoperative hemodynamic changes in partial liver grafts and characterize their potential impact on post-transplant liver regeneration in LDLT. METHODS We examined the portal venous flow (PVF) and hepatic arterial flow (HAF) to partial liver grafts by means of ultrasonic transit time flowmeter of donors immediately before graft retrieval and of the corresponding recipients after vascular reconstruction in 48 LDLT cases. We evaluated post-transplant liver regeneration according to the changes in graft liver volume between the time of transplantation and the 7th post-transplant day. RESULTS There was a significant increase in PVF to the partial liver grafts in recipients (rPVF) compared with that in donors. In contrast, graft HAF in recipients significantly decreased compared with that in donors. The rPVF inversely correlated with graft weight (GW)-recipient body weight ratio (GRWR), whereas HAF volume showed no significant correlation. The rPVF/GW positively correlated with the rate of liver regeneration (GRR), which inversely correlated with GRWR. The rPVF/GW was significantly higher, and GRR tended to be larger in the small graft group than in the non-small graft group. CONCLUSIONS Intraoperative portal hemodynamic changes in partial liver grafts strongly affect their post-transplant regeneration. In particular, in small liver grafts, an immediate and remarkable increase in graft PVF may contribute to rapid liver regeneration after LDLT if the increased PVF remains within a safe range.
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Affiliation(s)
- M Shimazu
- Department of Surgery, School of Medicine, Keio University, Tokyo, Japan; Department of Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan.
| | - Y Kato
- Department of Surgery, Fujita Health University, Aichi, Japan
| | - S Kawachi
- Department of Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - M Tanabe
- Department of Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - K Hoshino
- Department of Surgery, School of Medicine, Keio University, Tokyo, Japan
| | - G Wakabayashi
- Department of Surgery, Ageo Central General Hospital, Saitama, Japan
| | - Y Kitagawa
- Department of Surgery, School of Medicine, Keio University, Tokyo, Japan
| | - M Kitajima
- International University of Health and Welfare, Tokyo, Japan
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20
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Kasai S, Kamiya K, Shinohara K, Kawashima H, Ogawa H, Uehara K, Miura Y, Okano F, Suzuki S, Hoshino K, Tsuzuki K, Sato M, Oasa K, Kusama Y, Yamauchi T, Nagashima Y, Ida K, Hidekuma S, Ido T, Hamada Y, Nishizawa A, Kawasumi Y, Uesugi Y, Okajima S, Kawahata K, Ejiri A, Amemiya H, Sadamoto Y. Plasma Diagnostics in JFT-2M. Fusion Science and Technology 2017. [DOI: 10.13182/fst06-a1097] [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)
- S. Kasai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - K. Kamiya
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - K. Shinohara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - H. Kawashima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - H. Ogawa
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - K. Uehara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - Y. Miura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - F. Okano
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - S. Suzuki
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - K. Hoshino
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - K. Tsuzuki
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - K. Oasa
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka-shi, Ibaraki-ken 311-0193, Japan
| | - T. Yamauchi
- Japan Atomic Energy Research Institute, Kansai Research Establishment, Tokai-mura, Naka-gun Ibaraki-ken 319-1195, Japan
| | - Y. Nagashima
- Kyushu University, Research Institute for Applied Mechanics, Kasuga-shi, Fukuoka-ken 816-8580, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki-shi, Gifu-ken 509-5292, Japan
| | - S. Hidekuma
- National Institute for Fusion Science, Toki-shi, Gifu-ken 509-5292, Japan
| | - T. Ido
- National Institute for Fusion Science, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Hamada
- National Institute for Fusion Science, Toki-shi, Gifu-ken 509-5292, Japan
| | - A. Nishizawa
- National Institute for Fusion Science, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Kawasumi
- National Institute for Fusion Science, Toki-shi, Gifu-ken 509-5292, Japan
| | - Y. Uesugi
- Kanazawa University, Kanazawa-shi, Ishikawa-ken 920-8667, Japan
| | - S. Okajima
- Chubu University, College of Engineering, Kasugai-shi, Aichi-ken 487-8501, Japan
| | - K. Kawahata
- Kanazawa University, Kanazawa-shi, Ishikawa-ken 920-8667, Japan
| | - A. Ejiri
- The University of Tokyo, Graduate School of Frontier Sciences, Kashiwa-shi, Chiba-ken 277-8561, Japan
| | - H. Amemiya
- Chuo University, The Faculty of Science and Engineering, Bunkyo-ku, Tokyo-to 112-8551, Japan
| | - Y. Sadamoto
- Joetsu University of Education, Joetsu-shi, Niigata-ken 943-8512, Japan
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Tsuzuki K, Kimura H, Kusama Y, Sato M, Kawashima H, Kamiya K, Shinohara K, Ogawa H, Uehara K, Kurita G, Kasai S, Hoshino K, Isei N, Miura Y, Yamamoto M, Kikuchi K, Shibata T, Bakhtiari M, Hino T, Hirohata Y, Yamauchi Y, Yamaguchi K, Tsutsui H, Shimada R, Amemiya H, Nagashima Y, Ido T, Hamada Y. Characteristics of Plasma Operation with the Ferritic inside Wall and Its Compatibility with High-Performance Plasmas in JFT-2M. Fusion Science and Technology 2017. [DOI: 10.13182/fst06-a1095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Tsuzuki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - H. Kimura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - H. Kawashima
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Kamiya
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Shinohara
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - H. Ogawa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Uehara
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - G. Kurita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - S. Kasai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Hoshino
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - N. Isei
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - Y. Miura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - M. Yamamoto
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Kikuchi
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - T. Shibata
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - M. Bakhtiari
- University of Wisconsin, Madison, Wisconsin 53706
| | - T. Hino
- Hokkaido University Sapporo, Hokkaido 060-8628, Japan
| | - Y. Hirohata
- Hokkaido University Sapporo, Hokkaido 060-8628, Japan
| | - Y. Yamauchi
- Hokkaido University Sapporo, Hokkaido 060-8628, Japan
| | - K. Yamaguchi
- Hokkaido University Sapporo, Hokkaido 060-8628, Japan
| | - H. Tsutsui
- Tokyo Institute of Technology, Meguro-ku Tokyo 152-8550, Japan
| | - R. Shimada
- Tokyo Institute of Technology, Meguro-ku Tokyo 152-8550, Japan
| | - H. Amemiya
- The Institute of Physical and Chemical Research, Wako, Saitama 351-0198, Japan
| | - Y. Nagashima
- National Institute for Fusion Science, Toki-shi 509-5292, Japan
| | - T. Ido
- National Institute for Fusion Science, Toki-shi 509-5292, Japan
| | - Y. Hamada
- National Institute for Fusion Science, Toki-shi 509-5292, Japan
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22
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Kazama K, Hoshino K, Kodama T, Okada M, Yamawaki H. Adipocytokine, progranulin, augments acetylcholine-induced nitric oxide-mediated relaxation through the increases of cGMP production in rat isolated mesenteric artery. Acta Physiol (Oxf) 2017; 219:781-789. [PMID: 27332749 DOI: 10.1111/apha.12739] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 03/31/2016] [Revised: 04/18/2016] [Accepted: 06/17/2016] [Indexed: 01/28/2023]
Abstract
AIM Progranulin (PGRN) is a novel adipocytokine with anti-inflammatory effects in vascular cells. The aim of this study was to clarify the effects of PGRN on reactivity of isolated blood vessel. METHODS Isometric contraction of rat isolated superior mesenteric artery was measured. RESULTS Pre-treatment with PGRN (10-100 ng mL-1 , 30 min) had no effect on noradrenaline- or 5-hydroxytriptamine-induced contraction. On the other hand, pre-treatment with PGRN (100 ng mL-1 ) augmented acetylcholine (ACh; 30 nm)-induced endothelium-dependent relaxation. Pre-treatment with PGRN (100 ng mL-1 ) augmented ACh (10 μm)-induced nitric oxide (NO)-mediated relaxation in the presence of indomethacin (10 μm), a cyclooxygenase inhibitor, and tetraethyl ammonium (10 mm), a non-selective potassium channel blocker. In contrast, pre-treatment with PGRN (100 ng mL-1 ) had no effect on ACh-induced endothelium-derived hyperpolarizing factor-mediated relaxation. Pre-treatment with PGRN (100 ng mL-1 ) had no effect on ACh (10 μm, 1 min)-induced endothelial NO synthase phosphorylation (at Ser1177) as determined by Western blotting. Pre-treatment with PGRN (100 ng mL-1 ) augmented an NO donor, sodium nitroprusside (SNP; 30 nm-1 μm)- but not a membrane-permeable cGMP analogue, 8-bromo-cGMP-induced relaxation. In the presence of 3-isobutyl-1-methylxanthine (100 μm), a phosphodiesterase inhibitor, pre-treatment with PGRN (100 ng mL-1 ) increased SNP (30 nm, 5 min)-induced cGMP production as determined by enzyme immunoassay. CONCLUSION We for the first time demonstrate that PGRN augments ACh-induced NO-mediated relaxation through the increases of cGMP production in smooth muscle. These results indicate PGRN as a possible pharmacotherapeutic target against cardiovascular diseases including obesity-related hypertension.
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Affiliation(s)
- K. Kazama
- Laboratory of Veterinary Pharmacology; School of Veterinary Medicine; Kitasato University; Towada Aomori Japan
| | - K. Hoshino
- Laboratory of Veterinary Pharmacology; School of Veterinary Medicine; Kitasato University; Towada Aomori Japan
| | - T. Kodama
- Laboratory of Veterinary Pharmacology; School of Veterinary Medicine; Kitasato University; Towada Aomori Japan
| | - M. Okada
- Laboratory of Veterinary Pharmacology; School of Veterinary Medicine; Kitasato University; Towada Aomori Japan
| | - H. Yamawaki
- Laboratory of Veterinary Pharmacology; School of Veterinary Medicine; Kitasato University; Towada Aomori Japan
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23
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Hoshino K, Suzuki T, Isayama A, Ide S, Takenaga H, Kubo H, Fujita T, Kamada Y, Fujii T, Tsuda T, Ida K, Inagaki S. Electron Cyclotron Heating Applied to the JT-60U Tokamak. Fusion Science and Technology 2017. [DOI: 10.13182/fst08-a1659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Hoshino
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - T. Suzuki
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - A. Isayama
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - S. Ide
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - H. Takenaga
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - H. Kubo
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - T. Fujita
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - Y. Kamada
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - T. Fujii
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - T. Tsuda
- Japan Atomic Energy Agency, Mukouyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - K. Ida
- National Institute for Fusion Science Oroshicho 322-6, Gifu 509-5292, Japan
| | - S. Inagaki
- National Institute for Fusion Science Oroshicho 322-6, Gifu 509-5292, Japan
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24
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Soeda E, Hoshino K, Izawa Y, Takaoka C, Isobe C, Takahashi A, Takahashi N, Yamada Y, Shimojima N, Fujino A, Shinoda M, Kitagawa Y, Tanabe M, Nakamaru S, Taki N, Sekiguchi A, Nakazawa Y, Turukawa T, Kuroda T. A Report on the Positive Response to an Outdoor Nature Challenge of a Snow Camp for Young Liver Transplant Patients. Transplant Proc 2017; 49:115-120. [PMID: 28104117 DOI: 10.1016/j.transproceed.2016.10.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVES More than two decades have passed since the first living donor liver transplantation was performed in Japan in 1989. There are many reports about problems in adherence to taking medication and medical follow-ups in children who received liver transplants, because there is no transition strategy for those children and parents or guardians. The objective of this study is to measure the effect of nature and outdoor activity to improve children's medical adherence. METHODS We recruited participants from 9-year-old children who are attending the outpatient liver transplant clinic in a stable condition (no event such as rejection or surgical procedure within 6 months). We took participants to a snow camp and measured its effect by using the IKIRU CHIKARA (IKR) tool, which contain 28 items divided into 3 categories: psychosocial ability, moral fitness, and physical ability. Children were tested on three occasions, before, just after, and 1 month after the camp. RESULTS Eight patients participated in the snow camp and 7 patients were eligible for the study. The average age was 12.6 with a range 10 to 17 years. There were 3 girls and 4 boys. The average IKR scores before, just after, and 1 month after the camp were 127.9, 131.5, and 126.6, respectively. CONCLUSION An outdoor activity such as a snow camp can be safely conducted, and it is an acceptable option to incorporate within a pediatric liver transplant program. There were no significant changes in IKR scores during this short observation. Longer observation is needed to measure the effect of nature and outdoor activities.
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Affiliation(s)
- E Soeda
- Faculty of Nursing and Medical Care, Keio University, Tokyo, Japan.
| | - K Hoshino
- School of Medicine, Keio University, Tokyo, Japan
| | - Y Izawa
- Department of Nursing, Keio University Hospital, Tokyo, Japan
| | - C Takaoka
- Department of Nursing, Keio University Hospital, Tokyo, Japan
| | - C Isobe
- School of Nursing, Shibuya Medical Association, Tokyo, Japan
| | | | - N Takahashi
- School of Medicine, Keio University, Tokyo, Japan
| | - Y Yamada
- School of Medicine, Keio University, Tokyo, Japan
| | - N Shimojima
- School of Medicine, Keio University, Tokyo, Japan
| | - A Fujino
- School of Medicine, Keio University, Tokyo, Japan
| | - M Shinoda
- School of Medicine, Keio University, Tokyo, Japan
| | - Y Kitagawa
- School of Medicine, Keio University, Tokyo, Japan
| | - M Tanabe
- Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Nakamaru
- Faculty of Health and Sports Science, Juntendo University, Chiba, Japan
| | - N Taki
- Faculty of Educatoin, Shinshu University, Nagano, Japan
| | - A Sekiguchi
- Japanese Center for Research on Women in Sports, Juntendo University, Tokyo, Japan
| | | | | | - T Kuroda
- School of Medicine, Keio University, Tokyo, Japan
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25
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Kobayashi T, Itoh K, Ido T, Kamiya K, Itoh SI, Miura Y, Nagashima Y, Fujisawa A, Inagaki S, Ida K, Hoshino K. Experimental Identification of Electric Field Excitation Mechanisms in a Structural Transition of Tokamak Plasmas. Sci Rep 2016; 6:30720. [PMID: 27489128 PMCID: PMC4973265 DOI: 10.1038/srep30720] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 07/06/2016] [Indexed: 11/09/2022] Open
Abstract
Self-regulation between structure and turbulence, which is a fundamental process in the complex system, has been widely regarded as one of the central issues in modern physics. A typical example of that in magnetically confined plasmas is the Low confinement mode to High confinement mode (L-H) transition, which is intensely studied for more than thirty years since it provides a confinement improvement necessary for the realization of the fusion reactor. An essential issue in the L-H transition physics is the mechanism of the abrupt "radial" electric field generation in toroidal plasmas. To date, several models for the L-H transition have been proposed but the systematic experimental validation is still challenging. Here we report the systematic and quantitative model validations of the radial electric field excitation mechanism for the first time, using a data set of the turbulence and the radial electric field having a high spatiotemporal resolution. Examining time derivative of Poisson's equation, the sum of the loss-cone loss current and the neoclassical bulk viscosity current is found to behave as the experimentally observed radial current that excites the radial electric field within a few factors of magnitude.
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Affiliation(s)
- T. Kobayashi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Itoh
- National Institute for Fusion Science, Toki 509-5292, Japan
- Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
| | - T. Ido
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Kamiya
- National Institutes for Quantum and Radiological Science and Technology, Naka 311-0193, Japan
| | - S.-I. Itoh
- Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - Y. Miura
- Japan Atomic Energy Agency, Tokai 319-1184, Japan
| | - Y. Nagashima
- Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - A. Fujisawa
- Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - S. Inagaki
- Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki 509-5292, Japan
- Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
| | - K. Hoshino
- National Institutes for Quantum and Radiological Science and Technology, Naka 311-0193, Japan
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Sasaki T, Kuwata R, Hoshino K, Isawa H, Sawabe K, Kobayashi M. Argonaute 2 Suppresses Japanese Encephalitis Virus Infection in Aedes aegypti. Jpn J Infect Dis 2016; 70:38-44. [PMID: 27169949 DOI: 10.7883/yoken.jjid.2015.671] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
There are three main innate immune mechanisms against viruses in mosquitoes. Infection with the flavivirus dengue virus is controlled by RNA interference (RNAi) and the JAK-STAT and Toll signaling pathways. This study showed that another flavivirus, Japanese encephalitis virus (JEV), did not invade the salivary glands of Aedes aegypti and that this may be a result of the innate immune resistance to the virus. Argonaute 2 (Ago2) plays a critical role in the RNAi pathway. To understand the mechanism of JEV resistance, we focused on Ago2 as a possible target of JEV. Here, we show that the expression of MyD88 (a mediator of Toll signaling) and Ago2 mRNAs was induced by JEV in the salivary glands of Ae. aegypti mosquitoes and that Ago2, JAK, and domeless (DOME) mRNAs were induced by JEV in the bodies of Ae. aegypti mosquitoes. Double-stranded (ds) Ago2 RNA enhanced JEV infection, and the virus was detected in salivary glands by immunofluorescence assay. In contrast, MyD88 dsRNA had no effect on JEV infection. These data suggest that Ago2 plays a crucial role in mediating the innate immune response of Ae. aegypti to JEV in a manner similar to that employed by dengue virus.
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Affiliation(s)
- Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Disease
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27
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Daniels NJ, Hyde E, Ghosh S, Seo K, Price KM, Hoshino K, Kaisho T, Okada T, Ronchese F. Antigen-specific cytotoxic T lymphocytes target airway CD103+ and CD11b+ dendritic cells to suppress allergic inflammation. Mucosal Immunol 2016; 9:229-39. [PMID: 26104914 DOI: 10.1038/mi.2015.55] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/19/2015] [Indexed: 02/04/2023]
Abstract
Allergic airway inflammation is driven by the recognition of inhaled allergen by T helper type 2 (Th2) cells in the airway and lung. Allergen-specific cytotoxic T lymphocytes (CTLs) can strongly reduce airway inflammation, however, the mechanism of their inhibitory activity is not fully defined. We used mouse models to show that allergen-specific CTLs reduced early cytokine production by Th2 cells in lung, and their subsequent accumulation and production of interleukin (IL)-4 and IL-13. In addition, treatment with specific CTLs also increased the proportion of caspase(+) dendritic cells (DCs) in mediastinal lymph node (MLN), and decreased the numbers of CD103(+) and CD11b(+) DCs in the lung. This decrease required expression of the cytotoxic mediator perforin in CTLs and of the appropriate MHC-antigen ligand on DCs, suggesting that direct CTL-DC contact was necessary. Lastly, lung imaging experiments revealed that in airway-challenged mice XCR1-GFP(+) DCs, corresponding to the CD103(+) DC subset, and XCR1-GFP(-) CD11c(+) cells, which include CD11b(+) DCs and alveolar macrophages, both clustered in the areas surrounding the small airways and were closely associated with allergen-specific CTLs. Thus, allergen-specific CTLs reduce allergic airway inflammation by depleting CD103(+) and CD11b(+) DC populations in the lung, and may constitute a mechanism through which allergic immune responses are regulated.
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Affiliation(s)
- N J Daniels
- Malaghan Institute of Medical Research, Wellington, New Zealand.,University of Otago, Wellington, New Zealand
| | - E Hyde
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - S Ghosh
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - K Seo
- Lab for Tissue Dynamics, RIKEN Center for Integrative Medical Sciences (IMS-RCAI), Yokohama, Japan
| | - K M Price
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - K Hoshino
- Laboratory for Inflammatory Regulation, RIKEN Center for Integrative Medical Sciences (IMS-RCAI), Yokohama, Japan.,Department of Immunology, Faculty of Medicine, Kagawa University, Kita-gun, Japan
| | - T Kaisho
- Laboratory for Inflammatory Regulation, RIKEN Center for Integrative Medical Sciences (IMS-RCAI), Yokohama, Japan.,Laboratory for Immune Regulation, World Premier International Immunology Frontier Research Center, Osaka University Suita, Osaka, Japan.,Department of Immunology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama, Japan
| | - T Okada
- Lab for Tissue Dynamics, RIKEN Center for Integrative Medical Sciences (IMS-RCAI), Yokohama, Japan.,PRESTO, Japan Science and Technology Agency, Saitama, Japan.,Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - F Ronchese
- Malaghan Institute of Medical Research, Wellington, New Zealand
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28
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Mori T, Kato J, Sakurai M, Hashimoto N, Kohashi S, Hashida R, Saburi M, Kikuchi T, Yamane Y, Hoshino K, Okamoto S. New-onset food allergy following cord blood transplantation in adult patients. Bone Marrow Transplant 2015; 51:295-6. [PMID: 26457912 DOI: 10.1038/bmt.2015.243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- T Mori
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - J Kato
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - M Sakurai
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - N Hashimoto
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - S Kohashi
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - R Hashida
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - M Saburi
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Oita, Japan
| | - T Kikuchi
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Y Yamane
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - K Hoshino
- Department of Pediatric Surgery, Keio University School of Medicine, Tokyo, Japan
| | - S Okamoto
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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29
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Hoshino K, Nakaba S, Inoue H, Iwabuchi K. Structure and development of male pheromone gland of longicorn beetles and its phylogenetic relationships within the tribe Clytini. J Exp Zool B Mol Dev Evol 2015; 324:68-76. [PMID: 25504930 DOI: 10.1002/jez.b.22606] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 10/18/2014] [Indexed: 11/06/2022]
Abstract
The male sex pheromone of the longicorn beetle, Xylotrechus pyrrhoderus pyrrhoderus Bates (Cerambycidae: Tribe Clytini) plays an important role in attracting females. This pheromone is produced by the pheromone gland located in the prothorax. However, the detailed structure and underlying developmental process of this gland are still unknown. We investigated the gland structure by using histological analysis and confirmed that the gland consists of the following parts: gland cell mass, a unique spherical space in the cuticle layer, and ductules connecting the gland cells with the spherical space and conducting canals to the outer opening. The gland structure first appeared male-specific in the late pupal stage, during which the epidermal cells began depositing the exocuticle; the development of the gland was completed after adult emergence. Furthermore, we verified the structural equivalents of the X. p. pyrrhoderus male pheromone gland in 11 species of 2 tribes, Clytini and Anaglyptini. The glands of these insects could be classified into four types on the basis of the absence or presence of the spherical space and the division of the gland cell mass layer. Most noteworthy, all the species with the spherical space and division-type gland were restricted to the Xylotrechus clade, as inferred from the molecular phylogenetic analysis. These results suggest that Clytini and Anaglyptini species share a fundamental process of male pheromone gland development, and that the Japanese Xylotrechus species might have established their current status by developing distinct structural features in the male pheromone gland.
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Affiliation(s)
- Keita Hoshino
- Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
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30
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Shinoda M, Itano O, Obara H, Kitagoo M, Hibi T, Abe Y, Yagi H, Matsubara K, Yamada Y, Fujino A, Hoshino K, Kuroda T, Kitagawa Y. P-136 De novo malignancy after living donor liver transplantation. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.136] [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: 11/13/2022] Open
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31
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Hoshino K, Isawa H, Kuwata R, Tajima S, Takasaki T, Iwabuchi K, Sawabe K, Kobayashi M, Sasaki T. Establishment and characterization of two new cell lines from the mosquito Armigeres subalbatus (Coquillett) (Diptera: Culicidae). In Vitro Cell Dev Biol Anim 2015; 51:672-9. [PMID: 25761724 DOI: 10.1007/s11626-015-9883-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 02/20/2015] [Indexed: 11/25/2022]
Abstract
Armigeres subalbatus (Coquillett) is a medically important mosquito and a model species for immunology research. We successfully established two cell lines from the neonate larvae of A. subalbatus using two different media. To our knowledge, this is the first report of an established Armigeres mosquito cell line. The cell lines, designated as Ar-3 and Ar-13, consist of adherent and diploid cells with compact colonies. Both these cell lines grow slowly after passage at a split ratio of 1:5 and a population doubling time of 2.7 and 3.0 d, respectively. Random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) was used to confirm that these lines correspond to the species of origin and are clearly distinct from seven other insect cell lines. Furthermore, reverse-transcription PCR was used to demonstrate that the Ar-3 cell line is susceptible to the Japanese encephalitis virus and two insect flaviviruses associated with Culex and Aedes mosquitoes but relatively insensitive to dengue virus. These data indicate that the newly established cell lines are cellular models of A. subalbatus as well as beneficial tools for the propagation of viruses associated with the Armigeres mosquito.
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Affiliation(s)
- Keita Hoshino
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
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Kuwata R, Isawa H, Hoshino K, Sasaki T, Kobayashi M, Maeda K, Sawabe K. Analysis of Mosquito-Borne Flavivirus Superinfection in Culex tritaeniorhynchus (Diptera: Culicidae) Cells Persistently Infected with Culex Flavivirus (Flaviviridae). J Med Entomol 2015; 52:222-229. [PMID: 26336307 DOI: 10.1093/jme/tju059] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 12/07/2014] [Indexed: 06/05/2023]
Abstract
Superinfection exclusion is generally defined as a phenomenon in which a pre-existing viral infection prevents a secondary viral infection; this has also been observed in infections with mosquito-borne viruses. In this study, we examined the superinfection exclusion of the vertebrate-infecting flaviviruses, Japanese encephalitis virus (JEV) and dengue virus (DENV), by stable and persistent infection with an insect-specific flavivirus, Culex flavivirus (CxFV), in a Culex tritaeniorhynchus Giles cell line (CTR cells). Our experimental system was designed based on the premise that wild Cx. tritaeniorhynchus mosquitoes naturally infected with CxFV are superinfected with JEV by feeding on JEV-infected animals. As a result, we found no evidence of the superinfection exclusion of both JEV and DENV by pre-existing CxFV infection at the cellular level. However, JEV superinfection induced severe cytopathic effects on persistently CxFV-infected CTR cells. These observations imply the possibility that JEV superinfection in CxFV-infected Cx. tritaeniorhynchus mosquitoes has an adverse effect on their fitness.
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Affiliation(s)
- Ryusei Kuwata
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi 753-8511, Japan. Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan. Corresponding author, e-mail:
| | - Keita Hoshino
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Mutsuo Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Ken Maeda
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi 753-8511, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
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Sakamoto Y, Nakamura M, Tobita K, Utoh H, Someya Y, Hoshino K, Asakura N, Tokunaga S. Relationship between net electric power and radial build of DEMO based on ITER steady-state scenario parameters. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2014.04.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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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Ueno T, Wada M, Hoshino K, Uemoto S, Taguchi T, Furukawa H, Fukuzawa M. Impact of Intestinal Transplantation for Intestinal Failure in Japan. Transplant Proc 2014; 46:2122-4. [DOI: 10.1016/j.transproceed.2014.06.037] [Citation(s) in RCA: 3] [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: 11/26/2022]
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35
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Shinoda M, Tanabe M, Itano O, Obara H, Kitago M, Abe Y, Hibi T, Yagi H, Fujino A, Kawachi S, Hoshino K, Kuroda T, Kitagawa Y. Left-Side Hepatectomy in Living Donors: Through a Reduced Upper-Midline Incision for Liver Transplantation. Transplant Proc 2014; 46:1400-6. [DOI: 10.1016/j.transproceed.2013.12.061] [Citation(s) in RCA: 4] [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] [Received: 07/02/2013] [Revised: 10/23/2013] [Accepted: 12/16/2013] [Indexed: 12/07/2022]
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36
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Ueno T, Wada M, Hoshino K, Sakamoto S, Furukawa H, Fukuzawa M. A national survey of patients with intestinal motility disorders who are potential candidates for intestinal transplantation in Japan. Transplant Proc 2014; 45:2029-31. [PMID: 23769101 DOI: 10.1016/j.transproceed.2013.01.092] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 01/24/2013] [Indexed: 12/21/2022]
Abstract
Intestinal motility disorders are a major cause of intestinal failure. Severe cases such as idiopathic pseudo-obstruction represent life-threatening illnessed. Intestinal transplantation is a treatment for severe motility disorders with irreversible intestinal failure. However, the prevalence of severe motility disorders is unknown. We performed a national survey to identify patients with intestinal motility disorders who require an intestinal transplant. The national survey of 302 institutions treating intestinal motility disorders identified 147 patients treated from 2006 to 2011 at 46 institutions. The mean patient age was 12.1 years (range, 0.3-77.5). The mean age of onset was 3.0 years (range, 0.0-68.8). Diagnoses included chronic idiopathic intestinal pseudo-obstruction (n = 96), Hirschsprung disease (n = 29), megacystis microcolon intestinal hypoperistalsis syndrome (n = 18), and other (n = 6). There were 126 survivors and 21 patients who died during the last 5 years. The mortality rate was 14.3%. Eighty-five percent of patients required parenteral nutrition for more than 6 months, which was defined as irreversible intestinal failure. Among surviving patients with irreversible intestinal failure, 8 (9.4 %) developed hepatic failure with jaundice and 27 (31.8%) 2 or more central vein thromboses. In all, at least 35 patients (41%) with irreversible failure due to intestinal motility disorders may be candidates for transplantation. The prevalence of severe intestinal motility disorders was elucidated in Japan. Severe cases should be referred to transplant centers.
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Affiliation(s)
- T Ueno
- Pediatric Surgery, Osaka University, Suita, Japan.
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37
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Nakamura Y, Ishikura H, Ichiki R, Hoshino K, Mizunuma M, Tanaka J, Murai A. Usefulness of presepsin and procalcitonin levels in the diagnosis of sepsis in patients with acute kidney injury. Crit Care 2014. [PMCID: PMC4068769 DOI: 10.1186/cc13403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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38
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Kobayashi T, Itoh K, Ido T, Kamiya K, Itoh SI, Miura Y, Nagashima Y, Fujisawa A, Inagaki S, Ida K, Hoshino K. Spatiotemporal structures of edge limit-cycle oscillation before L-to-H transition in the JFT-2M tokamak. Phys Rev Lett 2013; 111:035002. [PMID: 23909334 DOI: 10.1103/physrevlett.111.035002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Indexed: 06/02/2023]
Abstract
In this Letter, we report analyses of spatiotemporal dynamics of turbulence and structure in the limit-cycle oscillation (LCO) that precedes an L-to-H transition. Zonal flows are not observed during LCO, and the oscillation is the periodic generations or decays of barrier with edge-localized mean flow. Oscillatory Reynolds stress is found to be too small to accelerate the LCO flow, by considering the dielectric constant in magnetized toroidal plasmas. Propagation of changes of the density gradient and turbulence amplitude into the core is also observed.
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Affiliation(s)
- T Kobayashi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan.
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Kuwata R, Satho T, Isawa H, Yen NT, Phong TV, Nga PT, Kurashige T, Hiramatsu Y, Fukumitsu Y, Hoshino K, Sasaki T, Kobayashi M, Mizutani T, Sawabe K. Characterization of Dak Nong virus, an insect nidovirus isolated from Culex mosquitoes in Vietnam. Arch Virol 2013; 158:2273-84. [PMID: 23728735 PMCID: PMC7087109 DOI: 10.1007/s00705-013-1741-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Accepted: 04/19/2013] [Indexed: 11/30/2022]
Abstract
In this study, we isolated and characterized an insect nidovirus from the mosquito Culex tritaeniorhynchus Giles (Diptera: Culicidae) in Vietnam, as an additional member of the new family Mesoniviridae in the order Nidovirales. The virus, designated “Dak Nong virus (DKNV),” shared many characteristics with Cavally virus and Nam Dinh virus, which have also been discovered recently in mosquitoes, and these viruses should be considered members of a single virus species, Alphamesonivirus 1. DKNV grew in cultured mosquito cells but could not replicate in the cultured vertebrate cells tested. N-terminal sequencing of the DKNV structural proteins revealed two posttranslational cleavage sites in the spike glycoprotein precursor. DKNV is assumed to be a new member of the species Alphamesonivirus 1, and the current study provides further understanding of viruses belonging to the new family Mesoniviridae.
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Affiliation(s)
- Ryusei Kuwata
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
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Hosokawa S, Munejiri S, Inui M, Kajihara Y, Pilgrim WC, Ohmasa Y, Tsutsui S, Baron AQR, Shimojo F, Hoshino K. Transverse excitations in liquid Sn. J Phys Condens Matter 2013; 25:112101. [PMID: 23378432 DOI: 10.1088/0953-8984/25/11/112101] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Transverse acoustic (TA) excitation modes were observed in inelastic x-ray scattering (IXS) spectra of liquid Sn. The excitation energies and widths of the TA modes are in good agreement with results of an ab initio molecular dynamics simulation. By comparing current correlation spectra between the experimental and theoretical results quantitatively, we have concluded that the TA modes can be detected experimentally through the quasi-TA branches in the longitudinal current correlation spectra. The lifetime and propagation length of the TA modes were determined to be ~0.7 ps and 0.8-1.0 nm, respectively, corresponding to the size of cages formed instantaneously in liquid Sn.
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Affiliation(s)
- S Hosokawa
- Department of Physics, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan.
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41
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Umemura T, Ishikura H, Nakamura Y, Hoshino K, Nishida T, Kamitani T. Defining the need for a massive transfusion in severe blunt traumatic patients. Crit Care 2013. [PMCID: PMC3642576 DOI: 10.1186/cc12305] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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42
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Kuwata R, Nga PT, Yen NT, Hoshino K, Isawa H, Higa Y, Hoang NV, Trang BM, Loan DP, Phong TV, Sasaki T, Tsuda Y, Kobayashi M, Sawabe K, Takagi M. Surveillance of Japanese encephalitis virus infection in mosquitoes in Vietnam from 2006 to 2008. Am J Trop Med Hyg 2013; 88:681-8. [PMID: 23358634 DOI: 10.4269/ajtmh.12-0407] [Citation(s) in RCA: 27] [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: 11/07/2022] Open
Abstract
Japanese encephalitis virus (JEV) infection in mosquitoes was monitored in Vietnam from 2006 to 2008. A total of 15,225 mosquitoes, identified as 26 species in five genera were collected and 12,621 were grouped into 447 pools for examination of JEV infection by assays for cytopathic effects in C6/36 cells and by RT-PCR to detect flavivirus RNA. Three JEV strains were isolated from Culex tritaeniorhynchus Giles collected in northern and southern Vietnam and two JEV strains were isolated from Culex vishnui Theobald collected in the highlands of Vietnam. Genetic and phylogenetic analyses, based on complete E gene nucleotide sequences, revealed that the five JEV strains were classified into the genotype I group and six amino acid differences were found in these five strains. These results indicated that multiple JEV genotype I populations are circulating countrywide in Vietnam, transmitted by bites of their Cx. tritaeniorhynchus and Cx. vishnui.
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Affiliation(s)
- Ryusei Kuwata
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
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43
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Horie M, Meguro R, Hoshino K, Ishida N, Norita M. Neuroanatomical study on the tecto-suprageniculate-dorsal auditory cortex pathway in the rat. Neuroscience 2013; 228:382-94. [DOI: 10.1016/j.neuroscience.2012.10.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 10/10/2012] [Accepted: 10/23/2012] [Indexed: 10/27/2022]
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44
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Isawa H, Kuwata R, Tajima S, Hoshino K, Sasaki T, Takasaki T, Kobayashi M, Sawabe K. Construction of an infectious cDNA clone of Culex flavivirus, an insect-specific flavivirus from Culex mosquitoes. Arch Virol 2012; 157:975-9. [PMID: 22297417 DOI: 10.1007/s00705-012-1240-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [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: 10/25/2011] [Accepted: 12/21/2011] [Indexed: 11/30/2022]
Abstract
Culex flavivirus (CxFV) is an insect-specific flavivirus that has recently been detected in various Culex spp. mosquitoes worldwide. Here, we report the successful construction of a full-length infectious cDNA clone of a Tokyo strain, CxFV-NIID21. The full-length CxFV-NIID21 cDNA was cloned into the low-copy-number plasmid pMW119, which was stably amplified in Escherichia coli. Transfection of a mosquito cell line with in vitro-transcribed RNA from the cDNA clone resulted in the production of recombinant progeny virus with growth properties, cytopathogenicity, and virion morphology similar to the parental virus.
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Affiliation(s)
- Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
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45
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Kuwata R, Hoshino K, Isawa H, Tsuda Y, Tajima S, Sasaki T, Takasaki T, Kobayashi M, Sawabe K. Establishment and characterization of a cell line from the mosquito Culex tritaeniorhynchus (Diptera: Culicidae). In Vitro Cell Dev Biol Anim 2012; 48:369-76. [DOI: 10.1007/s11626-012-9520-1] [Citation(s) in RCA: 16] [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: 01/30/2012] [Accepted: 05/25/2012] [Indexed: 11/30/2022]
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46
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Hoshino K, Shibata D, Miyagi T, Yamamoto Y, Arakaki S, Maeshiro T, Hokama A, Kinjo F, Takahashi K, Fujita J. Cytomegalovirus-associated gastric ulcers in a patient with dermatomyositis treated with steroid and cyclophosphamide pulse therapy. Endoscopy 2012; 43 Suppl 2 UCTN:E277-8. [PMID: 21915824 DOI: 10.1055/s-0030-1256422] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 02/08/2023]
Affiliation(s)
- K Hoshino
- Department of Infectious, Respiratory, and Digestive Medicine, University of the Ryukyus, Okinawa, Japan.
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47
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Shinoda M, Tanabe M, Kawachi S, Itano O, Obara H, Kitago M, Matsubara K, Shimojima N, Fuchimoto Y, Hoshino K, Kuroda T, Kitagawa Y. Video-assisted Living Donor Lateral Segmentectomy and Left Hepatectomy Through a Reduced Upper Midline Incision for Liver Transplantation. J Surg Res 2012. [DOI: 10.1016/j.jss.2011.11.208] [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: 10/14/2022]
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48
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Hoshino K, Takahashi-Nakaguchi A, Isawa H, Sasaki T, Higa Y, Kasai S, Tsuda Y, Sawabe K, Kobayashi M. Entomological surveillance for flaviviruses at migratory bird stopover sites in Hokkaido, Japan, and a new insect flavivirus detected in Aedes galloisi (Diptera: Culicidae). J Med Entomol 2012; 49:175-182. [PMID: 22308786 DOI: 10.1603/me11123] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
To investigate the possible spread of West Nile virus (WNV) into Japan, we carried out entomological surveillance for flaviviruses at migratory bird stopover sites in Hokkaido, Japan, during 2003-2006. A total of 3,826 mosquitoes, identified as 15 species in five genera, were collected and 2,465 of these were grouped into 123 pools that were assayed for cytopathic effects on mosquito and mammalian cell cultures and for flavivirus RNA by reverse transcription-polymerase chain reaction using flavivirus universal primer sets for fragments of the NS3 and NS5 genes. Neither WNV nor other mosquito-vertebrate transmitted flaviviruses were detected in mosquitoes collected at any of the sites in Hokkaido, but five Culex flaviviruses and one novel Aedes galloisi flavivirus were identified from Culex pipiens L. s. l. and Aedes galloisi Yamada, respectively. Genetic and phylogenetic analyses based on the partial NS5 nucleotide sequences classified Aedes galloisi flavivirus with the insect flavivirus, but distant from Cell fusing agent, Kamiti river virus, and Culex flaviviruses, showing <74% sequence identities. Polymerase chain reaction-based bloodmeal analysis of 79 females showed that all of the Aedes and Ochlerotatus mosquitoes fed on mammals (deer and humans), whereas, Cx. pipiens s. l. mosquitoes fed on both of avian (ducks and sparrows, 85.7%) and mammalian hosts (dog, 14.3%). We suggest that to date WNV has not become established in Japan.
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Affiliation(s)
- Keita Hoshino
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
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49
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Muro Y, Sugiura K, Hoshino K, Akiyama M. Disappearance of anti-MDA-5 autoantibodies in clinically amyopathic DM/interstitial lung disease during disease remission. Rheumatology (Oxford) 2011; 51:800-4. [DOI: 10.1093/rheumatology/ker408] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [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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50
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Uemura H, Hoshino K, Kubota Y. Engagement of Renin-Angiotensin System in Prostate Cancer. Curr Cancer Drug Targets 2011; 11:442-50. [DOI: 10.2174/156800911795538101] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2010] [Accepted: 03/13/2011] [Indexed: 11/22/2022]
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