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Go S, Tsuzuki Y, Yoneda H, Ichikawa Y, Ikeda T, Imai N, Imamura K, Niikura M, Nishimura D, Mizuno R, Takeda S, Ueno H, Watanabe S, Saito TY, Shimoura S, Sugawara S, Takamine A, Takahashi T. Demonstration of nuclear gamma-ray polarimetry based on a multi-layer CdTe Compton camera. Sci Rep 2024; 14:2573. [PMID: 38336981 DOI: 10.1038/s41598-024-52692-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
To detect and track structural changes in atomic nuclei, the systematic study of nuclear levels with firm spin-parity assignments is important. While linear polarization measurements have been applied to determine the electromagnetic character of gamma-ray transitions, the applicable range is strongly limited due to the low efficiency of the detection system. The multi-layer Cadmium-Telluride (CdTe) Compton camera can be a state-of-the-art gamma-ray polarimeter for nuclear spectroscopy with the high position sensitivity and the detection efficiency. We demonstrated the capability to operate this detector as a reliable gamma-ray polarimeter by using polarized 847-keV gamma rays produced by the [Formula: see text]([Formula: see text]) reaction. By combining the experimental data and simulated calculations, the modulation curve for the gamma ray was successfully obtained. A remarkably high polarization sensitivity was achieved, compatible with a reasonable detection efficiency. Based on the obtained results, a possible future gamma-ray polarimetery is discussed.
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Affiliation(s)
- S Go
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, Japan.
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan.
| | - Y Tsuzuki
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
- Department of Physics, The University of Tokyo, Tokyo, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Chiba, Japan
| | - H Yoneda
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
- Lehrstuhl für Astronomie, Fakultät für Physik und Astronomie, Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Str. 31, 97074, Würzburg, Germany
| | - Y Ichikawa
- Department of Physics, Kyushu University, Fukuoka, Japan
| | - T Ikeda
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - N Imai
- Center for Nuclear Study, The University of Tokyo, Wako, Saitama, Japan
| | - K Imamura
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, Japan
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - M Niikura
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - D Nishimura
- Department of Natural Sciences, Tokyo City University, Tokyo, Japan
| | - R Mizuno
- Department of Physics, The University of Tokyo, Tokyo, Japan
| | - S Takeda
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Chiba, Japan
| | - H Ueno
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, Japan
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | - T Y Saito
- Center for Nuclear Study, The University of Tokyo, Wako, Saitama, Japan
- Atomic, Molecular, and Optical Physics Laboratory, RIKEN, Wako, Saitama, Japan
| | - S Shimoura
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
- Center for Nuclear Study, The University of Tokyo, Wako, Saitama, Japan
| | - S Sugawara
- Department of Natural Sciences, Tokyo City University, Tokyo, Japan
| | - A Takamine
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, Japan
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - T Takahashi
- Department of Physics, The University of Tokyo, Tokyo, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Chiba, Japan
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Ito Y, Takeda S, Nakajima T, Oyama A, Takeshita H, Miki K, Takami Y, Takeya Y, Shimamura M, Rakugi H, Morishita R. High-Fat Diet-Induced Diabetic Conditions Exacerbate Cognitive Impairment in a Mouse Model of Alzheimer's Disease Via a Specific Tau Phosphorylation Pattern. J Prev Alzheimers Dis 2024; 11:138-148. [PMID: 38230726 DOI: 10.14283/jpad.2023.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
BACKGROUND Epidemiological evidence has demonstrated a clear association between diabetes mellitus and increased risk of Alzheimer's disease (AD). Cerebral accumulation of phosphorylated tau aggregates, a cardinal neuropathological feature of AD, is associated with neurodegeneration and cognitive decline. Clinical and experimental studies indicate that diabetes mellitus affects the development of tau pathology; however, the underlying molecular mechanisms remain unknown. OBJECTIVE In the present study, we used a unique diabetic AD mouse model to investigate the changes in tau phosphorylation patterns occurring in the diabetic brain. DESIGN Tau-transgenic mice were fed a high-fat diet (n = 24) to model diabetes mellitus. These mice developed prominent obesity, severe insulin resistance, and mild hyperglycemia, which led to early-onset neurodegeneration and behavioral impairment associated with the accumulation of hyperphosphorylated tau aggregates. RESULTS Comprehensive phosphoproteomic analysis revealed a unique tau phosphorylation signature in the brains of mice with diabetic AD. Bioinformatic analysis of the phosphoproteomics data revealed putative tau-related kinases and cell signaling pathways involved in the interaction between diabetes mellitus and AD. CONCLUSION These findings offer potential novel targets that can be used to develop tau-based therapies and biomarkers for use in AD.
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Affiliation(s)
- Y Ito
- Shuko Takeda, MD, PhD and Ryuichi Morishita, MD, PhD, Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan, Tel: 81-6-6210-8351, Fax: 81-6-6210-8354, and
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Okumura T, Azuma T, Bennett DA, Chiu I, Doriese WB, Durkin MS, Fowler JW, Gard JD, Hashimoto T, Hayakawa R, Hilton GC, Ichinohe Y, Indelicato P, Isobe T, Kanda S, Katsuragawa M, Kawamura N, Kino Y, Mine K, Miyake Y, Morgan KM, Ninomiya K, Noda H, O'Neil GC, Okada S, Okutsu K, Paul N, Reintsema CD, Schmidt DR, Shimomura K, Strasser P, Suda H, Swetz DS, Takahashi T, Takeda S, Takeshita S, Tampo M, Tatsuno H, Ueno Y, Ullom JN, Watanabe S, Yamada S. Proof-of-Principle Experiment for Testing Strong-Field Quantum Electrodynamics with Exotic Atoms: High Precision X-Ray Spectroscopy of Muonic Neon. Phys Rev Lett 2023; 130:173001. [PMID: 37172243 DOI: 10.1103/physrevlett.130.173001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/10/2023] [Accepted: 03/10/2023] [Indexed: 05/14/2023]
Abstract
To test bound-state quantum electrodynamics (BSQED) in the strong-field regime, we have performed high precision x-ray spectroscopy of the 5g-4f and 5f- 4d transitions (BSQED contribution of 2.4 and 5.2 eV, respectively) of muonic neon atoms in the low-pressure gas phase without bound electrons. Muonic atoms have been recently proposed as an alternative to few-electron high-Z ions for BSQED tests by focusing on circular Rydberg states where nuclear contributions are negligibly small. We determined the 5g_{9/2}- 4f_{7/2} transition energy to be 6297.08±0.04(stat)±0.13(syst) eV using superconducting transition-edge sensor microcalorimeters (5.2-5.5 eV FWHM resolution), which agrees well with the most advanced BSQED theoretical prediction of 6297.26 eV.
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Affiliation(s)
- T Okumura
- Atomic, Molecular, and Optical Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - T Azuma
- Atomic, Molecular, and Optical Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - D A Bennett
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - I Chiu
- Institute for Radiation Sciences, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - W B Doriese
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - M S Durkin
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - J W Fowler
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - J D Gard
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - T Hashimoto
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai 319-1184, Japan
| | - R Hayakawa
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - G C Hilton
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Y Ichinohe
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - P Indelicato
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL Research University, Collège de France, Case 74, 4, place Jussieu, 75005 Paris, France
| | - T Isobe
- RIKEN Nishina Center, RIKEN, Wako 351-0198, Japan
| | - S Kanda
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Katsuragawa
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - N Kawamura
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y Kino
- Department of Chemistry, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - K Mine
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - Y Miyake
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K M Morgan
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
- Department of Physics, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - K Ninomiya
- Institute for Radiation Sciences, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Noda
- Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - G C O'Neil
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - S Okada
- Engineering Science Laboratory, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - K Okutsu
- Department of Chemistry, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - N Paul
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL Research University, Collège de France, Case 74, 4, place Jussieu, 75005 Paris, France
| | - C D Reintsema
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - D R Schmidt
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - K Shimomura
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - P Strasser
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Suda
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - D S Swetz
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - T Takahashi
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - S Takeda
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - S Takeshita
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Tampo
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Tatsuno
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Y Ueno
- Atomic, Molecular, and Optical Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - J N Ullom
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - S Watanabe
- Department of Space Astronomy and Astrophysics, Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Kanagawa 252-5210, Japan
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
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Koja Y, Joshima Y, Yoritaka Y, Arakawa T, Go H, Hakamata N, Kaseda H, Hattori T, Takeda S. Formation of subcellular compartments by condensation-prone protein OsJAZ2 in Oryza sativa and Nicotiana benthamiana leaf cells. Plant Cell Rep 2023; 42:269-286. [PMID: 36449075 DOI: 10.1007/s00299-022-02955-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
OsJAZ2 protein has a propensity to form condensates, possibly by multivalent interactions, and can be used to construct artificial compartments in plant cells. Eukaryotic cells contain various membraneless organelles, which are compartments consisting of proteinaceous condensates formed by phase separation. Such compartments are attractive for bioengineering and synthetic biology, because they can modify cellular function by the enrichment of molecules of interest and providing an orthogonal reaction system. This study reports that Oryza sativa JAZ2 protein (OsJAZ2) is an atypical jasmonate signalling regulator that can form large condensates in both the nucleus and cytosol of O. sativa cells. TIFY and Jas domains and low-complexity regions contribute to JAZ2 condensation, possibly by multivalent interaction. Fluorescence recovery after photobleaching (FRAP) analysis suggests that JAZ2 condensates form mostly gel-like or solid compartments, but can also be in a liquid-like state. Deletion of the N-terminal region or the TIFY domain of JAZ2 causes an increase in the mobile fraction of JAZ2 condensates, moderately. Moreover, JAZ2 can also form liquid-like condensates when expressed in Nicotiana benthamiana cells. The recombinant JAZ2 fused to the green fluorescent protein (GFP) forms condensate in vitro, suggesting that the intermolecular interaction of JAZ2 molecules is a driving force for condensation. These results suggest the potential use of JAZ2 condensates to construct artificial membraneless organelles in plant cells.
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Affiliation(s)
- Yoshito Koja
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Yu Joshima
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Yusuke Yoritaka
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Takuya Arakawa
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Haruka Go
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Nagisa Hakamata
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Hinako Kaseda
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Tsukaho Hattori
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Shin Takeda
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
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Sugimoto T, Sakurai T, Akatsu H, Doi T, Fujiwara Y, Hirakawa A, Kinoshita F, Kuzuya M, Lee S, Matsuo K, Michikawa M, Ogawa S, Otsuka R, Sato K, Shimada H, Suzuki H, Suzuki H, Takechi H, Takeda S, Umegaki H, Wakayama S, Arai H. The Japan-Multimodal Intervention Trial for Prevention of Dementia (J-MINT): The Study Protocol for an 18-Month, Multicenter, Randomized, Controlled Trial. J Prev Alzheimers Dis 2021; 8:465-476. [PMID: 34585222 PMCID: PMC8187136 DOI: 10.14283/jpad.2021.29] [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] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background/Objectives The Japan-multimodal intervention trial for prevention of dementia (J-MINT) is intended to verify the effectiveness of multi-domain interventions and to clarify the mechanism of cognitive improvement and deterioration by carrying out assessment of dementia-related biomarkers, omics analysis and brain imaging analysis among older adults at high risk of dementia. Moreover, the J-MINT trial collaborates with partnering private enterprises in the implementation of relevant interventional measures. This manuscript describes the study protocol. Design/Setting Eighteen-month, multi-centered, randomized controlled trial. Participants We plan to recruit 500 older adults aged 65–85 years with mild cognitive impairment. Subjects will be centrally randomized into intervention and control groups at a 1:1 allocation ratio using the dynamic allocation method with all subjects stratified by age, sex, and cognition. Intervention The multi-domain intervention program includes: (1) management of vascular risk factors; (2) group-based physical exercise and self-monitoring of physical activity; (3) nutritional counseling; and (4) cognitive training. Health-related information will be provided to the control group every two months. Measurements The primary and secondary outcomes will be assessed at baseline, 6-, 12-, and 18-month follow-up. The primary outcome is the change from baseline to 18 months in a global composite score combining several neuropsychological domains. Secondary outcomes include: cognitive change in each neuropsychological test, incident dementia, changes in blood and dementia-related biomarkers, changes in geriatric assessment including activities of daily living, frailty status and neuroimaging, and number of medications taken. Conclusions This trial that enlist the support of private enterprises will lead to the creation of new services for dementia prevention as well as to verify the effectiveness of multi-domain interventions for dementia prevention. Electronic Supplementary Material Supplementary material is available for this article at 10.14283/jpad.2021.29 and is accessible for authorized users.
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Affiliation(s)
- T Sugimoto
- Takashi Sakurai, 7-430 Morioka, Obu, Aichi, 474-8511, Japan, Tel: +81-562-46-2311, E-mail:
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Takafuji Y, Shimizu-Sato S, Ta KN, Suzuki T, Nosaka-Takahashi M, Oiwa T, Kimura W, Katoh H, Fukai M, Takeda S, Sato Y, Hattori T. High-resolution spatiotemporal transcriptome analyses during cellularization of rice endosperm unveil the earliest gene regulation critical for aleurone and starchy endosperm cell fate specification. J Plant Res 2021; 134:1061-1081. [PMID: 34279738 DOI: 10.1007/s10265-021-01329-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/05/2021] [Indexed: 06/13/2023]
Abstract
The major tissues of the cereal endosperm are the starchy endosperm (SE) in the inner and the aleurone layer (AL) at the outer periphery. The fates of the cells that comprise these tissues are determined according to positional information; however, our understanding of the underlying molecular mechanisms remains limited. Here, we conducted a high-resolution spatiotemporal analysis of the rice endosperm transcriptome during early cellularization. In rice, endosperm cellularization proceeds in a concentric pattern from a primary alveolus cell layer, such that developmental progression can be defined by the number of cell layers. Using laser-capture microdissection to obtain precise tissue sections, transcriptomic changes were followed through five histologically defined stages of cellularization from the syncytial to 3-cell layer (3 L) stage. In addition, transcriptomes were compared between the inner and the outermost peripheral cell layers. Large differences in the transcriptomes between stages and between the inner and the peripheral cells were found. SE attributes were expressed at the alveolus-cell-layer stage but were preferentially activated in the inner cell layers that resulted from periclinal division of the alveolus cell layer. Similarly, AL attributes started to be expressed only after the 2 L stage and were localized to the outermost peripheral cell layer. These results indicate that the first periclinal division of the alveolus cell layer is asymmetric at the transcriptome level, and that the cell-fate-specifying positional cues and their perception system are already operating before the first periclinal division. Several genes related to epidermal identity (i.e., type IV homeodomain-leucine zipper genes and wax biosynthetic genes) were also found to be expressed at the syncytial stage, but their expression was localized to the outermost peripheral cell layer from the 2 L stage onward. We believe that our findings significantly enhance our knowledge of the mechanisms underlying cell fate specification in rice endosperm.
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Affiliation(s)
- Yoshinori Takafuji
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Sae Shimizu-Sato
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Kim Nhung Ta
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Toshiya Suzuki
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Misuzu Nosaka-Takahashi
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Tetsuro Oiwa
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Wakana Kimura
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Hirokazu Katoh
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Mao Fukai
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Shin Takeda
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
| | - Yutaka Sato
- National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan.
- Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540, Japan.
| | - Tsukaho Hattori
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
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Takeda S, Fukunaga N, Sanami S, Tsuzuki Y, Kitasaka H, Takeda S, Watanabe H, Kida Y, Kondou F, Asada Y. P–156 Automatic pronuclear detection based on deep learning technology has clinical utility. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.155] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
Does the performance of an automatic pronuclear detection system based on deep learning technology have clinical utility?
Summary answer
Output results for 2PN detection using the automatic system powered by deep learning technology has clinical utility.
What is known already
In order to establish a more objective embryo evaluation system, we have been developing an automatic pronuclear detection system that utilizes deep learning technology based on Time- Lapse (TL) images. We have previously reported that the accuracy of pronuclei detection was improved by introducing an analysis method using 11 slices in the Z axis. In this study, we evaluated the potential clinical practicality of the automatic pronuclear detection system.
Study design, size, duration
Embryos clinically evaluated between May 2018 and December 2019 by embryologists were chosen for this study. We prepared for analysis TL videos of 995 embryos that had been evaluated as having 0, 1, 2, and 3PN.
Participants/materials, setting, methods
Part1:We compared the outputs of the automatic pronuclear detection system with these embryologists(three junior embryologists (1a), three intermediate embryologists (1b),and three senior embryologists (1c)) who had judged the pronuclei number from TL videos from 40 embryos each having 0,1,2,and 3PN.
Part2:The automatic pronuclear detection system determined the pronuclei number from the TL videos of 955 embryos scored as either 1,2,and 3PN,(different from those used in Part1),and the detection rate for 2PN was calculated.
Main results and the role of chance
Part1: The sensitivities for embryologist groups 1a),1b),1c) and the automatic pronuclear detection system were 80.0%,100%,100%,100% for 2PN, 60.0%,83.3%,86.7%,100% for 0PN, 46.7%,80.0%,86.7%,10.0% for 1PN, and 73.3%,96.7%,96.7%,10.0% for 3PN.
Part2: The precision for 2PN by the automatic pronuclear detection system was 99%.
Limitations, reasons for caution
In order to further improve the performance of the automatic pronuclear detection system, further adjustment of the algorithm and more training images will be utilised.
Wider implications of the findings: The detection of 2PN by the automatic pronuclear detection system was highly reliable, and the performance of the system was comparable to that of embryologists. These first results are reassuring and support the clinical use of the system as a further aid for embryologists, in routine laboratory practice.
Trial registration number
‘not applicable’
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Affiliation(s)
- S Takeda
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - N Fukunaga
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - S Sanami
- Dai Nippon Printing Co., Ltd., Tokyo, Japan
| | - Y Tsuzuki
- Dai Nippon Printing Co., Ltd., Tokyo, Japan
| | - H Kitasaka
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - S Takeda
- Dai Nippon Printing Co., Ltd., Tokyo, Japan
| | - H Watanabe
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - Y Kida
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - F Kondou
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - Y Asada
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
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8
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Okumura T, Azuma T, Bennett DA, Caradonna P, Chiu I, Doriese WB, Durkin MS, Fowler JW, Gard JD, Hashimoto T, Hayakawa R, Hilton GC, Ichinohe Y, Indelicato P, Isobe T, Kanda S, Kato D, Katsuragawa M, Kawamura N, Kino Y, Kubo MK, Mine K, Miyake Y, Morgan KM, Ninomiya K, Noda H, O'Neil GC, Okada S, Okutsu K, Osawa T, Paul N, Reintsema CD, Schmidt DR, Shimomura K, Strasser P, Suda H, Swetz DS, Takahashi T, Takeda S, Takeshita S, Tampo M, Tatsuno H, Tong XM, Ueno Y, Ullom JN, Watanabe S, Yamada S. Deexcitation Dynamics of Muonic Atoms Revealed by High-Precision Spectroscopy of Electronic K X Rays. Phys Rev Lett 2021; 127:053001. [PMID: 34397250 DOI: 10.1103/physrevlett.127.053001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
We observed electronic K x rays emitted from muonic iron atoms using superconducting transition-edge sensor microcalorimeters. The energy resolution of 5.2 eV in FWHM allowed us to observe the asymmetric broad profile of the electronic characteristic Kα and Kβ x rays together with the hypersatellite K^{h}α x rays around 6 keV. This signature reflects the time-dependent screening of the nuclear charge by the negative muon and the L-shell electrons, accompanied by electron side feeding. Assisted by a simulation, these data clearly reveal the electronic K- and L-shell hole production and their temporal evolution on the 10-20 fs scale during the muon cascade process.
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Affiliation(s)
- T Okumura
- Atomic, Molecular and Optical Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - T Azuma
- Atomic, Molecular and Optical Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - D A Bennett
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - P Caradonna
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - I Chiu
- Department of Chemistry, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - W B Doriese
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - M S Durkin
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - J W Fowler
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - J D Gard
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - T Hashimoto
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai 319-1184, Japan
| | - R Hayakawa
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - G C Hilton
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Y Ichinohe
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - P Indelicato
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL Research University, Collège de France, Case 74, 4, place Jussieu, 75005 Paris, France
| | - T Isobe
- RIKEN Nishina Center, RIKEN, Wako 351-0198, Japan
| | - S Kanda
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - D Kato
- National Institute for Fusion Science (NIFS), Toki, Gifu 509-5292, Japan
| | - M Katsuragawa
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - N Kawamura
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y Kino
- Department of Chemistry, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - M K Kubo
- Department of Natural Sciences, College of Liberal Arts, International Christian University, Mitaka, Tokyo 181-8585, Japan
| | - K Mine
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - Y Miyake
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K M Morgan
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - K Ninomiya
- Department of Chemistry, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Noda
- Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - G C O'Neil
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - S Okada
- Atomic, Molecular and Optical Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - K Okutsu
- Department of Chemistry, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - T Osawa
- Materials Sciences Research Center (MSRC), Japan Atomic Energy Agency (JAEA), Tokai 319-1184, Japan
| | - N Paul
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-PSL Research University, Collège de France, Case 74, 4, place Jussieu, 75005 Paris, France
| | - C D Reintsema
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - D R Schmidt
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - K Shimomura
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - P Strasser
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Suda
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - D S Swetz
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - T Takahashi
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - S Takeda
- Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - S Takeshita
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Tampo
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Tatsuno
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - X M Tong
- Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
| | - Y Ueno
- Atomic, Molecular and Optical Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - J N Ullom
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - S Watanabe
- Department of Space Astronomy and Astrophysics, Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Kanagawa 252-5210, Japan
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
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9
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Ogawa D, Suzuki Y, Yokoo T, Katoh E, Teruya M, Muramatsu M, Ma JF, Yoshida Y, Isaji S, Ogo Y, Miyao M, Kim JM, Kojima M, Takebayashi Y, Sakakibara H, Takeda S, Okada K, Mori N, Seki M, Habu Y. Acetic-acid-induced jasmonate signaling in root enhances drought avoidance in rice. Sci Rep 2021; 11:6280. [PMID: 33737547 PMCID: PMC7973560 DOI: 10.1038/s41598-021-85355-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 08/02/2018] [Accepted: 02/18/2021] [Indexed: 01/18/2023] Open
Abstract
Conferring drought resistant traits to crops is one of the major aims of current breeding programs in response to global climate changes. We previously showed that exogenous application of acetic acid to roots of various plants could induce increased survivability under subsequent drought stress conditions, but details of the metabolism of exogenously applied acetic acid, and the nature of signals induced by its application, have not been unveiled. In this study, we show that rice rapidly induces jasmonate signaling upon application of acetic acid, resulting in physiological changes similar to those seen under drought. The major metabolite of the exogenously applied acetic acid in xylem sap was determined as glutamine-a common and abundant component of xylem sap-indicating that acetic acid is not the direct agent inducing the observed physiological responses in shoots. Expression of drought-responsive genes in shoot under subsequent drought conditions was attenuated by acetic acid treatment. These data suggest that acetic acid activates root-to-shoot jasmonate signals that partially overlap with those induced by drought, thereby conferring an acclimated state on shoots prior to subsequent drought.
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Affiliation(s)
- Daisuke Ogawa
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan.,Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, 305-8517, Japan
| | - Yuya Suzuki
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan
| | - Takayuki Yokoo
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan
| | - Etsuko Katoh
- Advanced Analysis Center, National Agriculture and Food Research Organization, Tsukuba, 305-8517, Japan
| | - Miyu Teruya
- Biotechnology Research Center, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Masayuki Muramatsu
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Kurashiki, 710-0046, Japan
| | - Yuri Yoshida
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan
| | - Shunsaku Isaji
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Yuko Ogo
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, 305-8517, Japan
| | - Mitsue Miyao
- Graduate School of Agricultural Science, Tohoku University, Sendai, 980-8572, Japan
| | - Jong-Myong Kim
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan.,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Mikiko Kojima
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Yumiko Takebayashi
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Hitoshi Sakakibara
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan.,Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Shin Takeda
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan.,Bioscience and Biotechnology Center, Nagoya University, Nagoya, 464-8601, Japan
| | - Kazunori Okada
- Biotechnology Research Center, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Naoki Mori
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan.,Plant Epigenome Regulation Laboratory, RIKEN Cluster for Pioneering Research, Wako, 351-0198, Japan
| | - Yoshiki Habu
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, 305-8602, Japan. .,Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, 305-8577, Japan.
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10
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Maruyama R, Lim K, Nguyen Q, Tsoumpra M, Takeda S, Aoki Y, Yokota T. DMD – ANIMAL MODELS & PRECLINICAL TREATMENT. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Mizoguchi M, Zhang Y, Kunimi M, Tanaka A, Takeda S, Takei N, Bharti V, Koyasu K, Kishimoto T, Jaksch D, Glaetzle A, Kiffner M, Masella G, Pupillo G, Weidemüller M, Ohmori K. Ultrafast Creation of Overlapping Rydberg Electrons in an Atomic BEC and Mott-Insulator Lattice. Phys Rev Lett 2020; 124:253201. [PMID: 32639753 DOI: 10.1103/physrevlett.124.253201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/20/2020] [Indexed: 06/11/2023]
Abstract
We study an array of ultracold atoms in an optical lattice (Mott insulator) excited with a coherent ultrashort laser pulse to a state where single-electron wave functions spatially overlap. Beyond a threshold principal quantum number where Rydberg orbitals of neighboring lattice sites overlap with each other, the atoms efficiently undergo spontaneous Penning ionization resulting in a drastic change of ion-counting statistics, sharp increase of avalanche ionization, and the formation of an ultracold plasma. These observations signal the actual creation of electronic states with overlapping wave functions, which is further confirmed by a significant difference in ionization dynamics between a Bose-Einstein condensate and a Mott insulator. This system is a promising platform for simulating electronic many-body phenomena dominated by Coulomb interactions in the condensed phase.
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Affiliation(s)
- M Mizoguchi
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Y Zhang
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, and Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - M Kunimi
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - A Tanaka
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - S Takeda
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - N Takei
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - V Bharti
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - K Koyasu
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - T Kishimoto
- Department of Engineering Science and Institute for Advanced Science, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - D Jaksch
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
- Center for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore
| | - A Glaetzle
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
- Center for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore
| | - M Kiffner
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
- Center for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore
| | - G Masella
- icFRC and ISIS (UMR 7006), Université de Strasbourg and CNRS, 67000 Strasbourg, France
| | - G Pupillo
- icFRC and ISIS (UMR 7006), Université de Strasbourg and CNRS, 67000 Strasbourg, France
| | - M Weidemüller
- Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China
| | - K Ohmori
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigo-Naka, Myodaiji, Okazaki, Aichi 444-8585, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Myodaiji, Okazaki, Aichi 444-8585, Japan
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12
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Kobayashi D, Mochizuki Y, Torii K, Takeda S, Kawase Y, Ishigure K, Teramoto H, Ando M, Kodera Y. Phase II multi-institutional prospective trial of nab-paclitaxel as second-line chemotherapy for advanced gastric cancer refractory to fluoropyrimidine with modified dose reduction criteria (CCOG1303). Int J Clin Oncol 2020; 25:1793-1799. [PMID: 32567012 DOI: 10.1007/s10147-020-01724-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 06/11/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND The aim of this study was to explore the efficacy and safety of nab-paclitaxel as second-line chemotherapy for advanced gastric cancer with modified dose reduction criteria by which the doses were manipulated earlier. METHODS Gastric cancer patients who developed progression during the fluoropyrimidine-containing first-line chemotherapy were assigned to receive nab-paclitaxel (260 mg/m2) by triweekly administration. Dose reduction was regulated according to predefined toxicity criteria which included neutropenia less than 1000/mm3 and/or peripheral sensory neuropathy of grade 2 or more. The primary endpoint was progression-free survival. RESULTS A total of 50 patients were enrolled, 47 of whom were eligible for efficacy analyses. The median number of treatment cycles and relative dose intensity given per patient was four (range 1-25), and 90% (range 60-100). Of total administration throughout the trial of 280 cycles, dose reduction was required in 50 cycles. The median progression-free survival was 3.5 months (95% confidence interval 2.5-4.4) that met the primary endpoint. The median overall survival was 9.0 months (95% confidence interval 6.8-11.8), overall response rate was 16% (95% confidence interval 2-30), and disease control rate was 72% (95% confidence interval 54-90). The median time to treatment failure was 3.5 months (95% confidence interval 2.5-4.4). Adverse events of grade 3 or worse included neutropenia in 49%, and peripheral sensory neuropathy in 11%. Febrile neutropenia occurred only in one patient (2%). CONCLUSION The modified dose reduction criteria for triweekly administration of nab-paclitaxel resulted in decreased incidence of severe peripheral sensory neuropathy without decline in efficacy.
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Affiliation(s)
- Daisuke Kobayashi
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
| | | | - Koji Torii
- Department of Surgery, Meitetsu Hospital, Nagoya, Japan
| | - Shin Takeda
- Department of Surgery, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | | | | | - Hitoshi Teramoto
- Department of Surgery, Yokkaichi Municipal Hospital, Yokkaichi, Japan
| | - Masahiko Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Yasuhiro Kodera
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
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13
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Iwano T, Yoshimura K, Inoue S, Odate T, Ogata K, Funatsu S, Tanihata H, Kondo T, Ichikawa D, Takeda S. Breast cancer diagnosis based on lipid profiling by probe electrospray ionization mass spectrometry. Br J Surg 2020; 107:632-635. [PMID: 32246473 PMCID: PMC7216899 DOI: 10.1002/bjs.11613] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/08/2020] [Indexed: 12/14/2022]
Affiliation(s)
- T Iwano
- Department of Anatomy and Cell Biology, Faculty of Medicine, Yamanashi, Japan
| | - K Yoshimura
- Department of Anatomy and Cell Biology, Faculty of Medicine, Yamanashi, Japan
| | - S Inoue
- Department of Digestive , Breast and Endocrine Surgery, Yamanashi, Japan
| | - T Odate
- Department of Pathology, University of Yamanashi, Chu, Yamanashi, Japan
| | - K Ogata
- Shimadzu Corporation, Nakagyo, Kyoto, Japan
| | - S Funatsu
- Shimadzu Corporation, Nakagyo, Kyoto, Japan
| | - H Tanihata
- Shimadzu Corporation, Nakagyo, Kyoto, Japan
| | - T Kondo
- Department of Pathology, University of Yamanashi, Chu, Yamanashi, Japan
| | - D Ichikawa
- Department of Digestive , Breast and Endocrine Surgery, Yamanashi, Japan
| | - S Takeda
- Department of Anatomy and Cell Biology, Faculty of Medicine, Yamanashi, Japan
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14
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Ma B, Ikeda Y, Otake Y, Teshigawara M, Wakabayashi Y, Harada M, Ooi M, Hashiguchi T, Yamagata Y, Takeda S. Slab geometry type cold neutron moderator development based on neutronic study for Riken Accelerator-driven compact Neutron Source (RANS). EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202023104004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Cold neutrons with energy less than several meV are good probes for material research, and they have been available on large neutron facilities, whereas it is not commonly available on compact accelerator-driven neutron source. RIKEN Accelerator-driven Neutron Source (RANS) is a pulsed neutron facility which provides thermal neutrons and high energy neutrons at several MeV. We started a project to implement a cold neutron moderator for RANS to broaden cold neutrons applications. A cold neutron moderator system with a mesitylene moderator at 20K and a polyethylene pre-moderator at room temperature in the slab geometry was designed for RANS. So far, the thickness of the pre-moderator and mesitylene have been optimized to get the highest cold neutron flux by using a Monte Carlo simulation code, PHITS. Graphite reflector dimensions were also proven to have significant effect to increase the cold neutron intensity.
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15
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Tsunedomi R, Yoshimura K, Kimura Y, Nishiyama M, Matsukuma S, Tokumitsu Y, Tomochika S, Iida M, Suzuki N, Takeda S, Yoshino S, Hazama S, Nagano H. Cancer stem-like phenotypes including immune surveillance and its responsible genes in induced liver cancer stem-like cells. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz422.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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16
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Elhussieny A, Nogami K, Takemura F, Maruyama Y, Miyagoe-Suzuki Y, Takeda S. P.313Improvement of human induced pluripotent stem cells (hiPSCs) - based therapy of Duchenne muscular dystrophy by using mesenchymal stem cells (MSCs). Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.427] [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: 10/25/2022]
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17
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Masuda K, Minami S, Stugaard M, Kozuma A, Takeda S, Nakayama T, Asanuma T, Nakatani S. P2477Assessment of intraventricular flow dynamics in acute heart failure studied by Vector Flow Mapping. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0808] [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: 11/14/2022] Open
Abstract
Abstract
Background
Although left ventricular (LV) flow dynamics should be closely related to LV morphology and function, little is known about how heart failure (HF) changes it. Pathline Analysis (PA), a recently developed software based on Vector Flow Mapping (VFM, Hitachi), enables us to trace the virtual blood particles entering to the LV in diastole and being ejected in systole. We investigated the change of flow dynamics in HF induced in dogs using PA.
Methods
In 15 open-chest dogs, HF was induced by intracoronary injection of microspheres. Color Doppler images of apical long-axis view were acquired using Prosound F75 (Hitachi) before and after HF and were analyzed by PA. We calculated the ratio of the numbers of entering particles in diastole and ejected particles in systole (ejection rate) and the distance reached by the particles in diastole corrected by the LV long-axis diameter (propagation distance). Apical and basal short axis images were acquired using GE Vivid E9 and were analyzed for peak rotation and peak twist.
Results
After inducing HF, LV end-diastolic pressure increased from 6±2 to 15±5 mmHg (p<0.001) and ejection fraction (EF), apical peak rotation and peak twist decreased significantly (EF; 58±5 to 36±8%, apical peak rotation; 14±5 to 3±2 degree, peak twist; 19±5 to 6±3 degree, p<0.05, respectively). PA showed most of the entering particles to the LV were ejected in the following systole at the control stage, but in HF, a significant part of the entering particles were not ejected and remained in the LV (Figure). Ejection rate decreased from 50±11 to 26±11% (p<0.001) and the propagation distance decreased from 85±9 to 66±13% (p<0.001) after inducing HF. There were significant relationships between indices obtained by PA and EF and peak twist (Table).
Conclusion
A significant part of inflow is not ejected directly to the outflow in the next systole and remains in the LV in HF, suggesting inefficient flow dynamics.
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Affiliation(s)
- K Masuda
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - S Minami
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - M Stugaard
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - A Kozuma
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - S Takeda
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - T Nakayama
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - T Asanuma
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - S Nakatani
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
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Hosobata T, Yamada NL, Hino M, Yoshinaga H, Nemoto F, Hori K, Kawai T, Yamagata Y, Takeda M, Takeda S. Elliptic neutron-focusing supermirror for illuminating small samples in neutron reflectometry. Opt Express 2019; 27:26807-26820. [PMID: 31674555 DOI: 10.1364/oe.27.026807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 08/11/2019] [Indexed: 06/10/2023]
Abstract
This paper details the development of a precise assembly of two supermirrors for neutron-focusing, designed for installation in neutron reflectometer SOFIA at BL16 in J-PARC MLF to intensify the illumination for small samples. The supermirrors are sputtered on two metal substrates, whose surfaces are coated with amorphous Ni-P plating, and are figured by diamond cutting and polished to subnanometer roughness. Special care is taken while polishing the substrates to reduce waviness and surface roughness for achieving a sharp focusing spot and uniform neutron reflectivity. The supermirror could converge the neutrons into a focal spot with a width of 0.13 mm in the full width at half maximum.
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Machida T, Sun Y, Pyon S, Takeda S, Kohsaka Y, Hanaguri T, Sasagawa T, Tamegai T. Zero-energy vortex bound state in the superconducting topological surface state of Fe(Se,Te). Nat Mater 2019; 18:811-815. [PMID: 31209388 DOI: 10.1038/s41563-019-0397-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 05/08/2019] [Indexed: 06/09/2023]
Abstract
Majorana quasiparticles in condensed matter are important for topological quantum computing1-3, but remain elusive. Vortex cores of topological superconductors may accommodate Majorana quasiparticles that appear as the Majorana bound state (MBS) at zero energy4,5. The iron-based superconductor Fe(Se,Te) possesses a superconducting topological surface state6-9 that was investigated by scanning tunnelling microscopy (STM) studies, which suggest such a zero-energy vortex bound state (ZVBS)10,11. Here we present ultrahigh energy-resolution spectroscopic imaging (SI)-STM to clarify the nature of the vortex bound states in Fe(Se,Te). We found the ZVBS at 0 ± 20 μeV, which constrained its MBS origin, and showed that some vortices host the ZVBS but others do not. We show that the fraction of vortices hosting the ZVBS decreases with increasing magnetic field and that local quenched disorders are not related to the ZVBS. Our observations elucidate the necessary conditions to realize the ZVBS, which paves the way towards controllable Majorana quasiparticles.
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Affiliation(s)
- T Machida
- RIKEN Center for Emergent Matter Science, Wako, Japan.
| | - Y Sun
- Department of Physics and Mathematics, Aoyama Gakuin University, Chuou-ku, Sagamihara, Japan
| | - S Pyon
- Department of Applied Physics, The University of Tokyo, Bunkyo-ku, Japan
| | - S Takeda
- Laboratory for Materials and Structures, Tokyo Institute of Technology, Midori-ku, Yokohama, Japan
| | - Y Kohsaka
- RIKEN Center for Emergent Matter Science, Wako, Japan
| | - T Hanaguri
- RIKEN Center for Emergent Matter Science, Wako, Japan.
| | - T Sasagawa
- Laboratory for Materials and Structures, Tokyo Institute of Technology, Midori-ku, Yokohama, Japan
| | - T Tamegai
- Department of Applied Physics, The University of Tokyo, Bunkyo-ku, Japan
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Mahjoubi H, Tamari Y, Takeda S, Bouchabké-Coussa O, Hanin M, Herzog E, Schmit AC, Chabouté ME, Ebel C. The wheat TdRL1 is the functional homolog of the rice RSS1 and promotes plant salt stress tolerance. Plant Cell Rep 2018; 37:1625-1637. [PMID: 30099611 DOI: 10.1007/s00299-018-2333-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 08/05/2018] [Indexed: 06/08/2023]
Abstract
Rice rss1 complementation assays show that wheat TdRL1 and RSS1 are true functional homologs. TdRL1 over-expression in Arabidopsis conferred salt stress tolerance and alleviated ROS accumulation. Plants have developed highly flexible adaptive responses to their ever-changing environment, which are often mediated by intrinsically disordered proteins (IDP). RICE SALT SENSITIVE 1 and Triticum durum RSS1-Like 1 protein (TdRL1) are both IDPs involved in abiotic stress responses, and possess conserved D and DEN-Boxes known to be required for post-translational degradation by the APC/Ccdc20 cyclosome. To further understand their function, we performed a computational analysis to compare RSS1 and TdRL1 co-expression networks revealing common gene ontologies, among which those related to cell cycle progression and regulation of microtubule (MT) networks were over-represented. When over-expressed in Arabidopsis, TdRL1::GFP was present in dividing cells and more visible in cortical and endodermal cells of the Root Apical Meristem (RAM). Incubation with the proteasome inhibitor MG132 stabilized TdRL1::GFP expression in RAM cells showing a post-translational regulation. Moreover, immuno-cytochemical analyses of transgenic roots showed that TdRL1 was present in the cytoplasm and within the microtubular spindle of mitotic cells, while, in interphasic cells, it was rather restricted to the cytoplasm with a spotty pattern at the nuclear periphery. Interestingly in cells subjected to stress, TdRL1 was partly relocated into the nucleus. Moreover, TdRL1 transgenic lines showed increased germination rates under salt stress conditions as compared to wild type. This enhanced salt stress tolerance was associated to an alleviation of oxidative damage. Finally, when expressed in the rice rss1 mutant, TdRL1 suppressed its dwarf phenotype upon salt stress, confirming that both proteins are true functional homologs required for salt stress tolerance in cereals.
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Affiliation(s)
- Habib Mahjoubi
- Laboratoire de Biotechnologie et d'Amélioration des Plantes, Centre de Biotechnologie de Sfax, BP 1177, 3018, Sfax, Tunisia
- Institut de biologie moléculaire des plantes, UPR 2357 du CNRS, Université de Strasbourg, 12, rue du Général Zimmer, 67084, Strasbourg Cedex, France
| | - Yutaka Tamari
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Shin Takeda
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Oumaya Bouchabké-Coussa
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
| | - Moez Hanin
- Plant Physiology and Functional Genomics Research Unit, Institute of Biotechnology, University of Sfax, BP 1175, 3038, Sfax, Tunisia
| | - Etienne Herzog
- Institut de biologie moléculaire des plantes, UPR 2357 du CNRS, Université de Strasbourg, 12, rue du Général Zimmer, 67084, Strasbourg Cedex, France
| | - Anne-Catherine Schmit
- Institut de biologie moléculaire des plantes, UPR 2357 du CNRS, Université de Strasbourg, 12, rue du Général Zimmer, 67084, Strasbourg Cedex, France
| | - Marie-Edith Chabouté
- Institut de biologie moléculaire des plantes, UPR 2357 du CNRS, Université de Strasbourg, 12, rue du Général Zimmer, 67084, Strasbourg Cedex, France
| | - Chantal Ebel
- Plant Physiology and Functional Genomics Research Unit, Institute of Biotechnology, University of Sfax, BP 1175, 3038, Sfax, Tunisia.
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Ikemoto Y, Kuroda K, Ochiai A, Yamashita S, Ikuma S, Nojiri S, Itakura A, Takeda S. Prevalence and risk factors of zygotic splitting after 937 848 single embryo transfer cycles. Hum Reprod 2018; 33:1984-1991. [DOI: 10.1093/humrep/dey294] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 09/16/2018] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Ikemoto
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
| | - K Kuroda
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
- Center for Reproductive Medicine and Implantation Research, Sugiyama Clinic Shinjuku, Nishi-shinjuku 1-19-6, Shinjuku-ku, Tokyo, Japan
| | - A Ochiai
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
| | - S Yamashita
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
- Department of Obstetrics and Gynecology, Oita University, Faculty of Medicine, Idaigaoka 1-1, Hasama-machi, Yufu-shi, Oita, Japan
| | - S Ikuma
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
| | - S Nojiri
- Medical Technology Innovation Center, Juntendo University, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
- Clinical Research and Trial Center, Juntendo University Hospital, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
| | - A Itakura
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
| | - S Takeda
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyoku, Tokyo, Japan
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Nakayama T, Kuru S, Komaki H, Takeda S. DMD CLINICAL THERAPIES I. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Yoshida H, Suzuki M, Tanaka K, Takeda S, Yogo K, Matsumoto Y. Anti-interleukin-6 receptor antibody prevents loss of bone structure and bone strength in collagen-induced arthritis mice. Scand J Rheumatol 2018; 47:384-391. [DOI: 10.1080/03009742.2017.1416667] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- H Yoshida
- Product Research Department, Fuji-Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd, Shizuoka, Japan
| | - M Suzuki
- Product Research Department, Fuji-Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd, Shizuoka, Japan
| | - K Tanaka
- Product Research Department, Fuji-Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd, Shizuoka, Japan
| | - S Takeda
- Product Research Department, Fuji-Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd, Shizuoka, Japan
| | - K Yogo
- Product Research Department, Fuji-Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd, Shizuoka, Japan
| | - Y Matsumoto
- Product Research Department, Fuji-Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd, Shizuoka, Japan
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Abstract
BACKGROUND AND OBJECTIVES Cell transplantation is a promising therapy for several muscle diseases, including Duchenne muscular dystrophy. Satellite cells are stem cells in skeletal muscle that provide an important cell source for transplantation therapy. However, culture of satellite cells in vitro causes them to lose their undifferentiated state, associated with reduced transplantation efficiency. It is therefore necessary to develop optimal culture conditions for maintaining the undifferentiated state of satellite cells. METHODS Primary satellite cells were cultured with or without leukemia inhibitory factor (LIF). The expression of undifferentiation and differentiation markers, and the transplantation efficiency were analyzed. RESULTS LIF-treated satellite cells showed increased expression of Pax7, and enhanced transplantation efficiency in a mouse model of Duchenne muscular dystrophy. CONCLUSIONS Our study showed that the treatment with LIF effectively maintained the undifferentiated state of satellite cells, and enhanced their transplantation efficiency. These results will contribute to the optimization of culture conditions for cell transplantation therapy.
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Affiliation(s)
- N Ito
- Department of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan.,Department of Rheumatology and Allergy, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, Japan
| | - N Shimizu
- Division of Rheumatology, Center for Antibody and Vaccine, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, Japan
| | - H Tanaka
- Department of Rheumatology and Allergy, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, Japan.,Division of Rheumatology, Center for Antibody and Vaccine, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, Japan
| | - S Takeda
- Department of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
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Tanoue H, Morinaga J, Yoshizawa T, Yugami M, Itoh H, Nakamura T, Uehara Y, Masuda T, Odagiri H, Sugizaki T, Kadomatsu T, Miyata K, Endo M, Terada K, Ochi H, Takeda S, Yamagata K, Fukuda T, Mizuta H, Oike Y. Angiopoietin-like protein 2 promotes chondrogenic differentiation during bone growth as a cartilage matrix factor. Osteoarthritis Cartilage 2018; 26:108-117. [PMID: 29074299 DOI: 10.1016/j.joca.2017.10.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 02/21/2017] [Revised: 08/30/2017] [Accepted: 10/10/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Chondrocyte differentiation is crucial for long bone growth. Many cartilage extracellular matrix (ECM) proteins reportedly contribute to chondrocyte differentiation, indicating that mechanisms underlying chondrocyte differentiation are likely more complex than previously appreciated. Angiopoietin-like protein 2 (ANGPTL2) is a secreted factor normally abundantly produced in mesenchymal lineage cells such as adipocytes and fibroblasts, but its loss contributes to the pathogenesis of lifestyle- or aging-related diseases. However, the function of ANGPTL2 in chondrocytes, which are also differentiated from mesenchymal stem cells, remains unclear. Here, we investigate whether ANGPTL2 is expressed in or functions in chondrocytes. METHODS First, we evaluated Angptl2 expression during chondrocyte differentiation using chondrogenic ATDC5 cells and wild-type epiphyseal cartilage of newborn mice. We next assessed ANGPTL2 function in chondrogenic differentiation and associated signaling using Angptl2 knockdown ATDC5 cells and Angptl2 knockout mice. RESULTS ANGPTL2 is expressed in chondrocytes, particularly those located in resting and proliferative zones, and accumulates in ECM surrounding chondrocytes. Interestingly, long bone growth was retarded in Angptl2 knockout mice from neonatal to adult stages via attenuation of chondrocyte differentiation. Both in vivo and in vitro experiments show that changes in ANGPTL2 expression can also alter p38 mitogen-activated protein kinase (MAPK) activity mediated by integrin α5β1. CONCLUSION ANGPTL2 contributes to chondrocyte differentiation and subsequent endochondral ossification through α5β1 integrin and p38 MAPK signaling during bone growth. Our findings provide insight into molecular mechanisms governing communication between chondrocytes and surrounding ECM components in bone growth activities.
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Affiliation(s)
- H Tanoue
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan; Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - J Morinaga
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Yoshizawa
- Department of Medical Biochemistry, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - M Yugami
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan; Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - H Itoh
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan; Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Nakamura
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - Y Uehara
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Masuda
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - H Odagiri
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Sugizaki
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Kadomatsu
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - K Miyata
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - M Endo
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - K Terada
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - H Ochi
- Department of Physiology and Cell Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - S Takeda
- Endocrine Center, Toranomon Hospital, 2-2-2 Toranomon, Minato-ku, Tokyo, 05-8470, Japan
| | - K Yamagata
- Department of Medical Biochemistry, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Fukuda
- Department of Anatomy and Neurobiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - H Mizuta
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - Y Oike
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan; Core Research for Evolutional Science and Technology (CREST), Japan Agency for Medical Research and Development (AMED), Tokyo, Japan.
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Oshiro T, Baba M, Fujita M, Kaneko Y, Takeda S, Hirano R, Mawatari K, Ishibashi Y, Miyabayashi I. The association for knowledge for the effect of respiratory infection, preventive action, and prevention of exacerbation in patients with COPD. Respir Med 2017. [DOI: 10.1016/j.rmed.2017.07.034] [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: 10/18/2022]
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Murakami K, Kitade M, Jinushi M, Kuroda K, Kumakiri J, Takeda S. Factors Influencing Postoperative Fertility and Perinatal Outcomes after Laparoscopic Myomectomy. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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van Westering T, Johansson H, Coenen-Stass A, Miyatake S, Tanihata J, Takeda S, Yokota T, Lehtiö J, Wood M, El Andaloussi S, Roberts T, Aoki Y. Comparative high resolution proteomic analysis of dystrophic mouse models reveals a core dystrophic proteome and the impact of aging. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Kimura E, Mori-Yoshimura M, Takahashi P M, Ishiyama A, Nakamura H, Wu S, Komaki H, Matsumura T, Aoki M, Nishino I, Takeda S. Current status of national neuromuscular patient registries in japan: Remudy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Kimura E, Mori-Yoshimura M, Nakamura H, Komaki H, Nishino I, Takeda S. Data analysis of dystrophinopathy national registry in Japan. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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31
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Sato M, Miyazaki D, Shiba Y, Echigoya Y, Yokota T, Aoki Y, Takeda S, Nakamura A. The exon 45 skipping therapy of induced pluripotent stem cells derived cardiomyocyte from the DMD patient with exon 46-55 deletion. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Nakamura H, Takeda S, Iwasaki M. Characteristics of clinical trials to support approval of orphan drugs for neurological disorders by the Japanese regulatory agency. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Miyazaki D, Sato M, Shiba Y, Echigoya Y, Yokota T, Aoki Y, Takeda S, Nakamura A. Dystrophin-deficient cardiomyocyte derived from Duchenne Muscular Dystrophy specific induced pluripotent stem cells carrying the deletion of exon 46-55 in DMD gene. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hosobata T, Yamada NL, Hino M, Yamagata Y, Kawai T, Yoshinaga H, Hori K, Takeda M, Takeda S, Morita SY. Development of precision elliptic neutron-focusing supermirror. Opt Express 2017; 25:20012-20024. [PMID: 29041686 DOI: 10.1364/oe.25.020012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
This paper details methods for the precision design and fabrication of neutron-focusing supermirrors, based on electroless nickel plating. We fabricated an elliptic mirror for neutron reflectometry, which is our second mirror improved from the first. The mirror is a 550-millimeter-long segmented mirror assembled using kinematic couplings, with each segment figured by diamond cutting, polished using colloidal silica, and supermirror coated through ion-beam sputtering. The mirror was evaluated with neutron beams, and the reflectivity was found to be 68-90% at a critical angle. The focusing width was 0.17 mm at the full width at half maximum.
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van Westering T, Johansson H, Coenen-Stass A, Tanihata J, Takeda S, Yokota T, Lehtiö J, Wood M, El Andaloussi S, Roberts T, Aoki Y. Age-related and mutation-independent proteomic changes in dystrophic mouse muscle. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30231-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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36
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Kimura E, Mori-Yoshimura M, Mitsuhashi S, Takeuchi F, Nakamura H, Komaki H, Nishino I, Kawai M, Takeda S. Current status of dystrophinopathy national registry in Japan. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Takeuchi F, Komaki H, Rodger S, Kirschner J, Kimura E, Takeda S, Gramsch K, Vry J, Bushby K, Lochmuller H, Wada K, Nakamura H. A comparative study of care and support for young boys with Duchenne muscular dystrophy between Japan and European countries: Implications of early diagnosis. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Suzuki T, Miyake N, Tsurusaki Y, Okamoto N, Alkindy A, Inaba A, Sato M, Ito S, Muramatsu K, Kimura S, Ieda D, Saitoh S, Hiyane M, Suzumura H, Yagyu K, Shiraishi H, Nakajima M, Fueki N, Habata Y, Ueda Y, Komatsu Y, Yan K, Shimoda K, Shitara Y, Mizuno S, Ichinomiya K, Sameshima K, Tsuyusaki Y, Kurosawa K, Sakai Y, Haginoya K, Kobayashi Y, Yoshizawa C, Hisano M, Nakashima M, Saitsu H, Takeda S, Matsumoto N. Molecular genetic analysis of 30 families with Joubert syndrome. Clin Genet 2016; 90:526-535. [PMID: 27434533 DOI: 10.1111/cge.12836] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 06/27/2016] [Accepted: 07/14/2016] [Indexed: 02/02/2023]
Abstract
Joubert syndrome (JS) is rare recessive disorders characterized by the combination of hypoplasia/aplasia of the cerebellar vermis, thickened and elongated superior cerebellar peduncles, and a deep interpeduncular fossa which is defined by neuroimaging and is termed the 'molar tooth sign'. JS is genetically highly heterogeneous, with at least 29 disease genes being involved. To further understand the genetic causes of JS, we performed whole-exome sequencing in 24 newly recruited JS families. Together with six previously reported families, we identified causative mutations in 25 out of 30 (24 + 6) families (83.3%). We identified eight mutated genes in 27 (21 + 6) Japanese families, TMEM67 (7/27, 25.9%) and CEP290 (6/27, 22.2%) were the most commonly mutated. Interestingly, 9 of 12 CEP290 disease alleles were c.6012-12T>A (75.0%), an allele that has not been reported in non-Japanese populations. Therefore c.6012-12T>A is a common allele in the Japanese population. Importantly, one Japanese and one Omani families carried compound biallelic mutations in two distinct genes (TMEM67/RPGRIP1L and TMEM138/BBS1, respectively). BBS1 is the causative gene in Bardet-Biedl syndrome. These concomitant mutations led to severe and/or complex clinical features in the patients, suggesting combined effects of different mutant genes.
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Affiliation(s)
- T Suzuki
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - N Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Y Tsurusaki
- Clinical Research Institute, Kanagawa Children's Medical Center, Yokohama, Japan
| | - N Okamoto
- Department of Medical Genetics, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka, Japan
| | - A Alkindy
- Department of Genetics, Sultan Qaboos University Hospital, Muscat, Oman
| | - A Inaba
- Yokohama City University Medical Center, Children's Medical Center, Yokohama, Japan
| | - M Sato
- Division of Nephrology and Rheumatology, National Center for Child Health and Development, Tokyo, Japan
| | - S Ito
- Department of Pediatrics, Graduate school of Medicine, Yokohama City University, Yokohama, Japan
| | - K Muramatsu
- Department of Pediatrics, Gunma University Graduate School of Medicine, Gunma, Japan
| | - S Kimura
- Kumamoto City Child Development Support Center, Kumamoto, Japan
| | - D Ieda
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - S Saitoh
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - M Hiyane
- Division of Child Neurology, Okinawa Prefectural Southern Medical Center & Children's Medical Center, Okinawa, Japan
| | - H Suzumura
- Department of Pediatrics, Dokkyo Medical University, Tochigi, Japan
| | - K Yagyu
- Department of Child and Adolescent Psychiatry, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - H Shiraishi
- Department of Pediatrics, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - M Nakajima
- Department of Pediatrics, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - N Fueki
- Division of Rehabilitation, Nagano Children's Hospital, Nagano, Japan
| | - Y Habata
- Department of Pediatric Rehabilitation, Hokkaido Medical Center for Child Health and Rehabilitation, Hokkaido, Japan
| | - Y Ueda
- Nire-no-kai Children's Clinic, Hokkaido, Japan
| | - Y Komatsu
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - K Yan
- Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - K Shimoda
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Y Shitara
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Mizuno
- Department of Pediatrics, Central Hospital, Aichi Human Service Center, Aichi, Japan
| | - K Ichinomiya
- Department of Neonatology, Gunma Children's Medical Center, Gunma, Japan
| | - K Sameshima
- Division of Medical Genetics, Gunma Children's Medical Center, Gunma, Japan
| | - Y Tsuyusaki
- Division of Neurology, Clinical Research Institute, Kanagawa Children's Medical Center, Yokohama, Japan
| | - K Kurosawa
- Division of Medical Genetics, Clinical Research Institute, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Y Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Haginoya
- Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan
| | - Y Kobayashi
- Department of Pediatrics, Gunma University Graduate School of Medicine, Gunma, Japan.,Academic Renal Unit, School of Clinical Science, University of Bristol, Bristol, UK
| | - C Yoshizawa
- Department of Pediatrics, Gunma University Graduate School of Medicine, Gunma, Japan
| | - M Hisano
- Department of Nephrology, Chiba Children's Hospital, Chiba, Japan
| | - M Nakashima
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - H Saitsu
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Department of Biochemistry, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - S Takeda
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - N Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Takeda S, Yamagata Y, Yamada NL, Hino M, Hosobata T, Guo J, Morita SY, Oda T, Furusaka M. Development of a large plano-elliptical neutron-focusing supermirror with metallic substrates. Opt Express 2016; 24:12478-12488. [PMID: 27410268 DOI: 10.1364/oe.24.012478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Results of this study demonstrated that electroless nickel-phosphorus (NiP) plated metal substrate is an excellent material for producing large aspherical neutron-focusing supermirrors. A large plano-elliptical neutron-focusing supermirror comprising two metallic segments was fabricated using single-point diamond cutting, precision polishing and supermirror coating. The average surface roughness of the metallic substrates was approximately 0.3 nm rms. For evaluation, the focusing supermirror was installed at the SOFIA neutron reflectometer, showing high neutron reflectivity and giving minimal beam width of 0.34 mm in FWHM. Because of the large beam divergence accepted by the mirror, the count rate with the focusing mirror was 3.3 times higher than that obtained using conventional two-slit collimation.
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Yoshino S, Nishimura T, Sakata K, Yoshida S, Furuya T, Yamamoto T, Kawaoka T, Shimizu R, Sato T, Matoba K, Morioka H, Iida M, Suzuki N, Takeda S, Ueno T, Hazama S, Nagano H. P-087 A phase II study of a combination treatment of alternate-day S-1 and lentinan as first-line chemotherapy for unresectable or recurrent gastric cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.84] [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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41
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Shimbo M, Kudo T, Hamada M, Jeon H, Imamura Y, Asano K, Okada R, Tsunakawa Y, Mizuno S, Yagami KI, Ishikawa C, Li H, Shiga T, Ishida J, Hamada J, Murata K, Ishimaru T, Hashimoto M, Fukamizu A, Yamane M, Ikawa M, Morita H, Shinohara M, Asahara H, Akiyama T, Akiyama N, Sasanuma H, Yoshida N, Zhou R, Wang YY, Ito T, Kokubu Y, Noguchi TAK, Ishimine H, Kurisaki A, Shiba D, Mizuno H, Shirakawa M, Ito N, Takeda S, Takahashi S. Ground-based assessment of JAXA mouse habitat cage unit by mouse phenotypic studies. Exp Anim 2016; 65:175-87. [PMID: 26822934 PMCID: PMC4873486 DOI: 10.1538/expanim.15-0077] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 01/01/2016] [Indexed: 01/01/2023] Open
Abstract
The Japan Aerospace Exploration Agency developed the mouse Habitat Cage Unit (HCU) for installation in the Cell Biology Experiment Facility (CBEF) onboard the Japanese Experimental Module ("Kibo") on the International Space Station. The CBEF provides "space-based controls" by generating artificial gravity in the HCU through a centrifuge, enabling a comparison of the biological consequences of microgravity and artificial gravity of 1 g on mice housed in space. Therefore, prior to the space experiment, a ground-based study to validate the habitability of the HCU is necessary to conduct space experiments using the HCU in the CBEF. Here, we investigated the ground-based effect of a 32-day housing period in the HCU breadboard model on male mice in comparison with the control cage mice. Morphology of skeletal muscle, the thymus, heart, and kidney, and the sperm function showed no critical abnormalities between the control mice and HCU mice. Slight but significant changes caused by the HCU itself were observed, including decreased body weight, increased weights of the thymus and gastrocnemius, reduced thickness of cortical bone of the femur, and several gene expressions from 11 tissues. Results suggest that the HCU provides acceptable conditions for mouse phenotypic analysis using CBEF in space, as long as its characteristic features are considered. Thus, the HCU is a feasible device for future space experiments.
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Affiliation(s)
- Miki Shimbo
- Mouse Epigenetics Project, ISS/Kibo experiment, JAXA, Japan
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42
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Hagiwara H, Nakayama T, Takeda S, Kitano T. [Mobilization of the Liver for Farther Incision of the Diaphragm in Transdiaphragmatic Re-do Coronary Artery Bypass Grafting]. Kyobu Geka 2016; 69:361-363. [PMID: 27220925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Re-do coronary artery bypass grafting to the right coronary artery via the diaphragm is useful, especially when re-sternotomy may injure a patent internal thoracic artery graft under the sternum. When the target vessel is located on the posterior wall of the heart, however, anastomosis becomes difficult. In our case, we mobilized the liver from the diaphragm and divided the diaphragm more posteriorly. The gastroepiploic artery was successfully anastomosed to the target vessel.
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Affiliation(s)
- Hiroaki Hagiwara
- Department of Cardiovascular Surgery, Nagoya Medical Center, Nagoya, Japan
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43
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Tsusaka Y, Takeda S, Takano H, Yokoyama K, Kagoshima Y, Matsui J. X-ray topography using the forward transmitted beam under multiple-beam diffraction conditions. Rev Sci Instrum 2016; 87:023701. [PMID: 26931854 DOI: 10.1063/1.4940443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
X-ray topographs are taken for a sapphire wafer with the [0001] surface normal, as an example, by forward transmitted synchrotron x-ray beams combined with two-dimensional electronic arrays in the x-ray detector having a spatial resolution of 1 μm. They exhibit no shape deformation and no position shift of the dislocation lines on the topographs. Since the topography is performed under multiple-beam diffraction conditions, the topographic images of a single diffraction (two-wave approximation condition) or plural diffractions (six-wave approximation condition) can be recorded without large specimen position changes. As usual Lang topographs, it is possible to determine the Burgers vector of each dislocation line. Because of high parallelism of the incoming x-rays and linear sensitivity of the electronic arrays to the incident x-rays, the present technique can be used to visualize individual dislocations in single crystals of the dislocation density as high as 1 × 10(5) cm(-2).
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Affiliation(s)
- Y Tsusaka
- Graduate School of Material Science, University of Hyogo, 3-2-1, Kouto, Kamigori, Hyogo 678-1297, Japan
| | - S Takeda
- SPring-8 Service Co., Ltd., 1-20-5, Kouto, Shingu, Tatsuno, Hyogo 679-5165, Japan
| | - H Takano
- Graduate School of Material Science, University of Hyogo, 3-2-1, Kouto, Kamigori, Hyogo 678-1297, Japan
| | - K Yokoyama
- Synchrotron Radiation Nanotechnology Center, University of Hyogo, 1-490-2, Kouto, Shingu, Tatsuno, Hyogo 679-5165, Japan
| | - Y Kagoshima
- Graduate School of Material Science, University of Hyogo, 3-2-1, Kouto, Kamigori, Hyogo 678-1297, Japan
| | - J Matsui
- Synchrotron Radiation Nanotechnology Center, University of Hyogo, 1-490-2, Kouto, Shingu, Tatsuno, Hyogo 679-5165, Japan
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Shimakura H, Kawakita Y, Ohmura S, Ohara K, Takeda S, Ohno S. Intermolecular correlations of racemic mixtures – comparison between liquid S 2Cl 2 and Se 2Br 2. Mol Phys 2016. [DOI: 10.1080/00268976.2015.1100345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- H. Shimakura
- Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Y. Kawakita
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Japan
| | - S. Ohmura
- Research Center for Condensed Matter Physics, Hiroshima Institute of Technology, Hiroshima, Japan
| | - K. Ohara
- Research and Utilization Division, Japan Synchrotron Radiation Research Institute/SPring-8, Sayo, Japan
| | - S. Takeda
- Faculty of Sciences, Kyushu University, Fukuoka, Japan
| | - S. Ohno
- Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
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Fujii T, Yamada S, Murotani K, Okamura Y, Ishigure K, Kanda M, Takeda S, Morita S, Nakao A, Kodera Y. Oral Food Intake Versus Fasting on Postoperative Pancreatic Fistula After Distal Pancreatectomy: A Multi-Institutional Randomized Controlled Trial. Medicine (Baltimore) 2015; 94:e2398. [PMID: 26717392 PMCID: PMC5291633 DOI: 10.1097/md.0000000000002398] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The usefulness of enteral nutrition via a nasointestinal tube for patients who develop postoperative pancreatic fistula (POPF) after miscellaneous pancreatectomy procedures has been reported. However, no clear evidence regarding whether oral intake is beneficial or harmful during management of POPF after distal pancreatectomy (DP) is currently available.To investigate the effects of oral food intake on the healing process of POPF after DP.Multi-institutional randomized controlled trial in Nagoya University Hospital and 4 affiliated hospitals.Patients who developed POPF were randomly assigned to the dietary intake (DI) group (n = 15) or the fasted group (no dietary intake [NDI] group) (n = 15). The primary endpoint was the length of drain placement.No significant differences were found in the length of drain placement between the DI and NDI groups (12 [6-58] and 12 [7-112] days, respectively; P = 0.786). POPF progressed to a clinically relevant status (grade B/C) in 5 patients in the DI group and 4 patients in the NDI group (P = 0.690). POPF-related intra-abdominal hemorrhage was found in 1 patient in the NDI group but in no patients in the DI group (P = 0.309). There were no significant differences in POPF-related intra-abdominal hemorrhage, the incidence of other complications, or the length of the postoperative hospital stay between the 2 groups.Food intake did not aggravate POPF and did not prolong drain placement or hospital stay after DP. There may be no need to avoid oral DI in patients with POPF.
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Affiliation(s)
- Tsutomu Fujii
- From the Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan (TF, SY, YO, MK, AN, YK); Center for Clinical Research, Aichi Medical University, Nagakute, Japan (KM); Department of Surgery, Konan Kosei Hospital, Konan, Japan (KI); Department of Surgery, National Hospital Organization Nagoya Medical Center, Nagoya, Japan (ST); Department of Biomedical Statistics and Bioinformatics, Kyoto University Graduate School of Medicine, Kyoto, Japan (SM); and Department of Surgery, Nagoya Central Hospital, Nagoya, Japan (AN)
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Ohno Y, Inoue K, Kutsukake K, Deura M, Ohsawa T, Yonenaga I, Yoshida H, Takeda S, Taniguchi R, Otubo H, Nishitani SR, Ebisawa N, Shimizu Y, Takamizawa H, Inoue K, Nagai Y. B21-O-13Metal silicide epilayers self-organized at grain boundaries in silicon. Microscopy (Oxf) 2015. [DOI: 10.1093/jmicro/dfv142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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47
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Komaki H, Nagata T, Saito T, Masuda S, Takeshita E, Tachimori H, Sasaki M, Takeda S. Exon 53 skipping of the dystrophin gene in patients with Duchenne muscular dystrophy by systemic administration of NS-065/NCNP-01: A phase 1, dose escalation, first-in-human study. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.276] [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: 11/30/2022]
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48
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Velardo D, Domi T, Porrello E, Capotondo A, Biffi A, Tonlorenzi R, Takeda S, Amadio S, Ruegg M, Previtali S. Combined cell and gene therapy to treat merosin deficient congenital muscular dystrophy. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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49
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Kurotani KI, Yamanaka K, Toda Y, Ogawa D, Tanaka M, Kozawa H, Nakamura H, Hakata M, Ichikawa H, Hattori T, Takeda S. Stress Tolerance Profiling of a Collection of Extant Salt-Tolerant Rice Varieties and Transgenic Plants Overexpressing Abiotic Stress Tolerance Genes. Plant Cell Physiol 2015; 56:1867-76. [PMID: 26329877 DOI: 10.1093/pcp/pcv106] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Accepted: 07/10/2015] [Indexed: 05/22/2023]
Abstract
Environmental stress tolerance is an important trait for crop improvement. In recent decades, numerous genes that confer tolerance to abiotic stress such as salinity were reported. However, the levels of salt tolerance differ greatly depending on growth conditions, and mechanisms underlying the complicated nature of stress tolerance are far from being fully understood. In this study, we investigated the profiles of stress tolerance of nine salt-tolerant rice varieties and transgenic rice lines carrying constitutively expressed genes that are potentially involved in salt tolerance, by evaluating their growth and viability under salt, heat, ionic and hyperosmotic stress conditions. Profiling of the extant varieties and selected chromosome segment substitution lines showed that salt tolerance in a greenhouse condition was more tightly correlated with ionic stress tolerance than osmotic stresses. In Nona Bokra, one of the most salt-tolerant varieties, the contribution of the previously identified sodium transporter HKT1;5 to salt tolerance was fairly limited. In addition, Nona Bokra exhibited high tolerance to all the stresses imposed. More surprisingly, comparative evaluation of 74 stress tolerance genes revealed that the most striking effect to enhance salt tolerance was conferred by overexpressing CYP94C2b, which promotes deactivation of jasmonate. In contrast, genes encoding ABA signaling factors conferred multiple stress tolerance. Genes conferring tolerance to both heat and hyperosmotic stresses were preferentially linked to functional categories related to heat shock proteins, scavenging of reactive oxygen species and Ca(2+) signaling. These comparative profiling data provide a new basis for understanding the ability of plants to grow under harsh environmental conditions.
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Affiliation(s)
- Ken-ichi Kurotani
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601 Japan
| | - Kazumasa Yamanaka
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601 Japan
| | - Yosuke Toda
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601 Japan Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8601 Japan
| | - Daisuke Ogawa
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601 Japan National Institute of Agrobiological Sciences, Kannondai, Tsukuba, 305-8602 Japan
| | - Maiko Tanaka
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601 Japan
| | - Hirotsugu Kozawa
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601 Japan
| | - Hidemitsu Nakamura
- National Institute of Agrobiological Sciences, Kannondai, Tsukuba, 305-8602 Japan Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
| | - Makoto Hakata
- National Institute of Agrobiological Sciences, Kannondai, Tsukuba, 305-8602 Japan Lowland Farming Research Division, NARO Kyushu Okinawa Agricultural Research Center, Izumi 496, Chikugo, Fukuoka, 833-0041 Japan
| | - Hiroaki Ichikawa
- National Institute of Agrobiological Sciences, Kannondai, Tsukuba, 305-8602 Japan
| | - Tsukaho Hattori
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601 Japan
| | - Shin Takeda
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601 Japan
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50
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Takeuchi F, Komaki H, Nakamura H, Yonemoto N, Kashiwabara K, Kimura E, Takeda S. Trends of steroid therapy for Duchenne muscular dystrophy in Japan. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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