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Okauchi Y, Sakamoto R, Kaketaka T, Yamabayashi E, Kubori M, Inada S, Morimura O, Otani Y, Abe K, Nishida T, Iwahashi H. Glucose control in the early phase of hospitalization is associated with severe prognosis in coronavirus disease 2019 (COVID-19) patients with diabetes in Japan. Diabetol Int 2023; 14:406-412. [PMID: 37781470 PMCID: PMC10533425 DOI: 10.1007/s13340-023-00656-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 07/27/2023] [Indexed: 10/03/2023]
Abstract
We investigated the association of glycemic control in the early phase of hospitalization with the prognosis of COVID-19 in patients with diabetes. We analyzed the relationship between various clinical indices, including preprandial blood glucose levels measured by self-monitoring devices in the early phase after admission, and severe prognosis in 189 patients with complicated diabetes who were admitted to our hospital between February 22, 2020 and June 20, 2021. Enrolled patients had a median age of 72 years, median body mass index of 24.7, median HbA1c of 7.1%, and median mean preprandial capillary glucose (PPCG) of 179.1 mg/dL. Sixty-six patients progressed to severe disease, and the mean PPCG in severe cases was significantly higher than that in non-severe cases, 195.2 vs 167.8 mg/dL (p = 0.005). Analysis of the receiver operating characteristic curve showed that 179 mg/dL was the cut-off value, and the risk of severity was significantly higher in patients with a mean PPCG of 180 mg/dL or higher (odds ratio (OR) 3.210, p = 0.017) in multiple regression analysis. In this study, we found that the risk of severe COVID-19 increased in patients with a high mean PPCG in the early phase of hospitalization, suggesting that good glucose control in the early phase of COVID-19 with diabetes may be effective in preventing disease severity. Supplementary Information The online version contains supplementary material available at 10.1007/s13340-023-00656-8.
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Affiliation(s)
- Yukiyoshi Okauchi
- Diabetes Center, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Ryuki Sakamoto
- Diabetes Center, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Tomoko Kaketaka
- Diabetes Center, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Eri Yamabayashi
- Diabetes Center, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Motohiro Kubori
- Diabetes Center, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Shinya Inada
- Diabetes Center, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Osamu Morimura
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Yasushi Otani
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Kinya Abe
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Tsutomu Nishida
- Department of Gastroenterology, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
| | - Hiromi Iwahashi
- Diabetes Center, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
- Department of Internal Medicine, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka 560-8565 Japan
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Shekhar S, Mielcarek S, Otani Y, Rana B, Trzaskowska A. Influence of CoFeB layer thickness on elastic parameters in CoFeB/MgO heterostructures. Sci Rep 2023; 13:10668. [PMID: 37393307 DOI: 10.1038/s41598-023-37808-4] [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: 04/05/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023] Open
Abstract
The surface acoustic waves, i.e., surface phonons may have huge potential for future spintronic devices, if coupled to other waves (e.g., spin waves) or quasiparticles. In order to understand the coupling of acoustic phonons with the spin degree of freedom, especially in magnetic thin film-based heterostructures, one needs to investigate the properties of phonons in those heterostructures. This also allows us to determine the elastic properties of individual magnetic layers and the effective elastic parameters of the whole stacks. Here, we study frequency versus wavevector dispersion of thermally excited SAWs in CoFeB/MgO heterostructures with varying CoFeB thickness by employing Brillouin light spectroscopy. The experimental results are corroborated by finite element method-based simulations. From the best agreement of simulation results with the experiments, we find out the elastic tensor parameters for CoFeB layer. Additionally, we estimate the effective elastic parameters (elastic tensors, Young's modulus, Poisson's ratio) of the whole stacks for varying CoFeB thickness. Interestingly, the simulation results, either considering elastic parameters of individual layers or considering effective elastic parameters of whole stacks, show good agreement with the experimental results. These extracted elastic parameters will be very useful to understand the interaction of phonons with other quasiparticles.
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Affiliation(s)
- S Shekhar
- Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614, Poznan, Poland.
| | - S Mielcarek
- Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614, Poznan, Poland
| | - Y Otani
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, 351-0198, Japan
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - B Rana
- Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614, Poznan, Poland
| | - A Trzaskowska
- Institute of Spintronics and Quantum Information, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614, Poznan, Poland
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Otani Y, Otani K, Okonogi N, Divieti Pajevic P, Xie Y, Depauw N, Paganetti H, Schuemann J, Held K, Miyamoto D, McNamara A. Parathyroid Hormone Reduces Persistent Proton Induced DNA Double-Strand Breaks in Osteocytes. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1801] [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: 10/31/2022]
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Barman A, Gubbiotti G, Ladak S, Adeyeye AO, Krawczyk M, Gräfe J, Adelmann C, Cotofana S, Naeemi A, Vasyuchka VI, Hillebrands B, Nikitov SA, Yu H, Grundler D, Sadovnikov AV, Grachev AA, Sheshukova SE, Duquesne JY, Marangolo M, Csaba G, Porod W, Demidov VE, Urazhdin S, Demokritov SO, Albisetti E, Petti D, Bertacco R, Schultheiss H, Kruglyak VV, Poimanov VD, Sahoo S, Sinha J, Yang H, Münzenberg M, Moriyama T, Mizukami S, Landeros P, Gallardo RA, Carlotti G, Kim JV, Stamps RL, Camley RE, Rana B, Otani Y, Yu W, Yu T, Bauer GEW, Back C, Uhrig GS, Dobrovolskiy OV, Budinska B, Qin H, van Dijken S, Chumak AV, Khitun A, Nikonov DE, Young IA, Zingsem BW, Winklhofer M. The 2021 Magnonics Roadmap. J Phys Condens Matter 2021; 33:413001. [PMID: 33662946 DOI: 10.1088/1361-648x/abec1a] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 03/04/2021] [Indexed: 05/26/2023]
Abstract
Magnonics is a budding research field in nanomagnetism and nanoscience that addresses the use of spin waves (magnons) to transmit, store, and process information. The rapid advancements of this field during last one decade in terms of upsurge in research papers, review articles, citations, proposals of devices as well as introduction of new sub-topics prompted us to present the first roadmap on magnonics. This is a collection of 22 sections written by leading experts in this field who review and discuss the current status besides presenting their vision of future perspectives. Today, the principal challenges in applied magnonics are the excitation of sub-100 nm wavelength magnons, their manipulation on the nanoscale and the creation of sub-micrometre devices using low-Gilbert damping magnetic materials and its interconnections to standard electronics. To this end, magnonics offers lower energy consumption, easier integrability and compatibility with CMOS structure, reprogrammability, shorter wavelength, smaller device features, anisotropic properties, negative group velocity, non-reciprocity and efficient tunability by various external stimuli to name a few. Hence, despite being a young research field, magnonics has come a long way since its early inception. This roadmap asserts a milestone for future emerging research directions in magnonics, and hopefully, it will inspire a series of exciting new articles on the same topic in the coming years.
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Affiliation(s)
- Anjan Barman
- Department of Condensed Matter Physics and Material Sciences, S N Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India
| | - Gianluca Gubbiotti
- Istituto Officina dei Materiali del Consiglio nazionale delle Ricerche (IOM-CNR), Perugia, Italy
| | - S Ladak
- School of Physics and Astronomy, Cardiff University, United Kingdom
| | - A O Adeyeye
- Department of Physics, University of Durham, United Kingdom
| | - M Krawczyk
- Adam Mickiewicz University, Poznan, Poland
| | - J Gräfe
- Max Planck Institute for Intelligent Systems, Stuttgart, Germany
| | | | - S Cotofana
- Delft University of Technology, The Netherlands
| | - A Naeemi
- Georgia Institute of Technology, United States of America
| | - V I Vasyuchka
- Department of Physics and State Research Center OPTIMAS, Technische Universität Kaiserslautern (TUK), Kaiserslautern, Germany
| | - B Hillebrands
- Department of Physics and State Research Center OPTIMAS, Technische Universität Kaiserslautern (TUK), Kaiserslautern, Germany
| | - S A Nikitov
- Kotelnikov Institute of Radioengineering and Electronics, Moscow, Russia
| | - H Yu
- Fert Beijing Institute, BDBC, School of Microelectronics, Beijing Advanced Innovation Center for Big Data and Brian Computing, Beihang University, People's Republic of China
| | - D Grundler
- Laboratory of Nanoscale Magnetic Materials and Magnonics, Institute of Materials (IMX), Institute of Electrical and Micro Engineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Switzerland
| | - A V Sadovnikov
- Kotelnikov Institute of Radioengineering and Electronics, Moscow, Russia
- Laboratory 'Magnetic Metamaterials', Saratov State University, Saratov, Russia
| | - A A Grachev
- Kotelnikov Institute of Radioengineering and Electronics, Moscow, Russia
- Laboratory 'Magnetic Metamaterials', Saratov State University, Saratov, Russia
| | - S E Sheshukova
- Kotelnikov Institute of Radioengineering and Electronics, Moscow, Russia
- Laboratory 'Magnetic Metamaterials', Saratov State University, Saratov, Russia
| | - J-Y Duquesne
- Institut des NanoSciences de Paris, Sorbonne University, CNRS, Paris, France
| | - M Marangolo
- Institut des NanoSciences de Paris, Sorbonne University, CNRS, Paris, France
| | - G Csaba
- Pázmány University, Budapest, Hungary
| | - W Porod
- University of Notre Dame, IN, United States of America
| | - V E Demidov
- Institute for Applied Physics, University of Muenster, Muenster, Germany
| | - S Urazhdin
- Department of Physics, Emory University, Atlanta, United States of America
| | - S O Demokritov
- Institute for Applied Physics, University of Muenster, Muenster, Germany
| | | | - D Petti
- Polytechnic University of Milan, Italy
| | | | - H Schultheiss
- Helmholtz-Center Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Germany
- Technische Universität Dresden, Germany
| | | | | | - S Sahoo
- Department of Condensed Matter Physics and Material Sciences, S N Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700106, India
| | - J Sinha
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, India
| | - H Yang
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore
| | - M Münzenberg
- Institute of Physics, University of Greifswald, Greifswald, Germany
| | - T Moriyama
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan
- Centre for Spintronics Research Network, Japan
| | - S Mizukami
- Centre for Spintronics Research Network, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, Japan
| | - P Landeros
- Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago, Chile
| | - R A Gallardo
- Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago, Chile
| | - G Carlotti
- Dipartimento di Fisica e Geologia, University of Perugia, Perugia, Italy
- CNR Instituto Nanoscienze, Modena, Italy
| | - J-V Kim
- Centre for Nanosciences and Nanotechnology, CNRS, Université Paris-Saclay, Palaiseau, France
| | - R L Stamps
- Department of Physics and Astronomy, University of Manitoba, Canada
| | - R E Camley
- Center for Magnetism and Magnetic Nanostructures, University of Colorado, Colorado Springs, United States of America
| | | | - Y Otani
- RIKEN, Japan
- Institute for Solid State Physics (ISSP), University of Tokyo, Japan
| | - W Yu
- Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
| | - T Yu
- Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
| | - G E W Bauer
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, Japan
- Zernike Institute for Advanced Materials, Groningen University, The Netherlands
| | - C Back
- Technical University Munich, Germany
| | - G S Uhrig
- Technical University Dortmund, Germany
| | | | - B Budinska
- Faculty of Physics, University of Vienna, Vienna, Austria
| | - H Qin
- Department of Applied Physics, School of Science, Aalto University, Finland
| | - S van Dijken
- Department of Applied Physics, School of Science, Aalto University, Finland
| | - A V Chumak
- Faculty of Physics, University of Vienna, Vienna, Austria
| | - A Khitun
- University of California Riverside, United States of America
| | - D E Nikonov
- Components Research, Intel, Hillsboro, Oregon, United States of America
| | - I A Young
- Components Research, Intel, Hillsboro, Oregon, United States of America
| | - B W Zingsem
- The University of Duisburg-Essen, CENIDE, Germany
| | - M Winklhofer
- The Carl von Ossietzky University of Oldenburg, Germany
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Okauchi Y, Matsuno K, Nishida T, Sawada K, Kawasaki A, Ito N, Morimura O, Otani Y, Yokoe M, Abe K, Iwahashi H. Obesity, glucose intolerance, advanced age, and lymphocytopenia are independent risk factors for oxygen requirement in Japanese patients with Coronavirus disease 2019 (COVID-19). Endocr J 2021; 68:849-856. [PMID: 33762519 DOI: 10.1507/endocrj.ej20-0784] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
At the current time of rising demand for hospital beds, it is important to triage COVID-19 patients according to the treatment needed during hospitalization. The need for oxygen therapy is an important factor determining hospital admission of these patients. Our retrospective study was designed to identify risk factors associated with the progression to oxygen requirement in COVID-19 patients. A total of 133 patients with laboratory-confirmed COVID-19 were admitted to our hospital from February 22, 2020, to August 23. After excluding asymptomatic, non-Japanese, pediatric, pregnant patients and also those who needed oxygen immediately at admission, data of the remaining 84 patients were analyzed. The patients were separated into those who required oxygen after admission and those who did not, and their characteristics were compared. Age, body mass index (BMI), lymphocyte count, C-reactive protein (CRP), lactate dehydrogenase, estimated glomerular filtration rate, glucose intolerance, hypertension, and dyslipidemia were significantly different between the two groups. Multivariate analysis identified four significant and independent risk factors of oxygen requirement, including advanced age, obesity, glucose intolerance and lymphocytopenia. Dividing the patients into subgroups according to the number of these risk factors found in each patient indicated that the need for oxygen increased with higher number of these risk factors in the same individual. Our results suggest that the presence of higher number of these risk factors in COVID-19 patients is associated with future oxygen requirement and that this index can be potentially useful in triaging COVID-19 patients staying home in the context of need for hospitalization.
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Affiliation(s)
- Yukiyoshi Okauchi
- Departments of Diabetes Center, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Kanae Matsuno
- Departments of Diabetes Center, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Tsutomu Nishida
- Gastroenterology, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Koichi Sawada
- Departments of Diabetes Center, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Akiko Kawasaki
- Departments of Diabetes Center, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Naohiko Ito
- Departments of Diabetes Center, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Osamu Morimura
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Yasushi Otani
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Masaru Yokoe
- Neurology, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Kinya Abe
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
| | - Hiromi Iwahashi
- Departments of Diabetes Center, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
- Internal Medicine, Toyonaka Municipal Hospital, Osaka 560-8565, Japan
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Tanaka T, Oda M, Wakasugi-Sato N, Joujima T, Miyamura Y, Habu M, Kodama M, Takahashi O, Sago T, Matsumoto-Takeda S, Nishida I, Tsurushima H, Otani Y, Yoshiga D, Sasaguri M, Morimoto Y. First Report of Sublingual Gland Ducts: Visualization by Dynamic MR Sialography and Its Clinical Application. J Clin Med 2020; 9:jcm9113676. [PMID: 33207659 PMCID: PMC7698194 DOI: 10.3390/jcm9113676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 01/26/2023] Open
Abstract
This study was done to determine whether the sublingual gland ducts could be visualized and/or their function assessed by MR sialography and dynamic MR sialography and to elucidate the clinical significance of the visualization and/or evaluation of the function of sublingual gland ducts by clinical application of these techniques. In 20 adult volunteers, 19 elderly volunteers, and 7 patients with sublingual gland disease, morphological and functional evaluations were done by MR sialography and dynamic MR sialography. Next, four parameters, including the time-dependent changes (change ratio) in the maximum area of the detectable sublingual gland ducts in dynamic MR sialographic images and data were analyzed. Sublingual gland ducts could be accurately visualized in 16 adult volunteers, 12 elderly volunteers, and 5 patients. No significant differences in the four parameters in detectable duct areas of sublingual glands were found among the three groups. In one patient with a ranula, the lesion could be correctly diagnosed as a ranula by MR sialography because the mass was clearly derived from sublingual gland ducts. This is the first report of successful visualization of sublingual gland ducts. In addition, the present study suggests that MR sialography can be more useful in the diagnosis of patients with lesions of sublingual gland ducts.
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Affiliation(s)
- Tatsurou Tanaka
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu 803-8580, Japan; (T.T.); (M.O.); (N.W.-S.); (T.J.); (Y.M.); (S.M.-T.)
| | - Masafumi Oda
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu 803-8580, Japan; (T.T.); (M.O.); (N.W.-S.); (T.J.); (Y.M.); (S.M.-T.)
| | - Nao Wakasugi-Sato
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu 803-8580, Japan; (T.T.); (M.O.); (N.W.-S.); (T.J.); (Y.M.); (S.M.-T.)
| | - Takaaki Joujima
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu 803-8580, Japan; (T.T.); (M.O.); (N.W.-S.); (T.J.); (Y.M.); (S.M.-T.)
| | - Yuichi Miyamura
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu 803-8580, Japan; (T.T.); (M.O.); (N.W.-S.); (T.J.); (Y.M.); (S.M.-T.)
| | - Manabu Habu
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu 803-8580, Japan; (M.H.); (O.T.); (M.S.)
| | - Masaaki Kodama
- Department of Oral and Maxillofacial Surgery, Japan Seafarers Relief Association Moji Ekisaikai Hospital, Kyushu 801-8550, Japan;
| | - Osamu Takahashi
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu 803-8580, Japan; (M.H.); (O.T.); (M.S.)
| | - Teppei Sago
- Division of Dental Anesthesiology, Kyushu Dental University, Kitakyushu 803-8580, Japan;
| | - Shinobu Matsumoto-Takeda
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu 803-8580, Japan; (T.T.); (M.O.); (N.W.-S.); (T.J.); (Y.M.); (S.M.-T.)
| | - Ikuko Nishida
- Division of Developmental Stomatognathic Function Science, Kyushu Dental University, Kitakyushu 803-8580, Japan;
| | - Hiroki Tsurushima
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu 803-8580, Japan; (H.T.); (Y.O.); (D.Y.)
| | - Yasushi Otani
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu 803-8580, Japan; (H.T.); (Y.O.); (D.Y.)
| | - Daigo Yoshiga
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu 803-8580, Japan; (H.T.); (Y.O.); (D.Y.)
| | - Masaaki Sasaguri
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu 803-8580, Japan; (M.H.); (O.T.); (M.S.)
| | - Yasuhiro Morimoto
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu 803-8580, Japan; (T.T.); (M.O.); (N.W.-S.); (T.J.); (Y.M.); (S.M.-T.)
- Correspondence: ; Tel./Fax: +81-93-285-3094
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Higuchi T, Nishida T, Iwahashi H, Morimura O, Otani Y, Okauchi Y, Yokoe M, Suzuki N, Inada M, Abe K. Early clinical factors predicting the development of critical disease in Japanese patients with COVID-19: A single-center, retrospective, observational study. J Med Virol 2020; 93:2141-2148. [PMID: 33090527 PMCID: PMC7675319 DOI: 10.1002/jmv.26599] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 07/20/2020] [Revised: 09/09/2020] [Accepted: 10/11/2020] [Indexed: 02/06/2023]
Abstract
The factors predicting the progression of coronavirus disease‐2019 (COVID‐19) from mild to moderate to critical are unclear. We retrospectively evaluated risk factors for disease progression in Japanese patients with COVID‐19. Seventy‐four patients with laboratory‐confirmed COVID‐19 were hospitalized in our hospital between February 20, 2020, and June 10, 2020. We excluded asymptomatic, non‐Japanese, and pediatric patients. We divided patients into the stable group and the progression group (PG; requiring mechanical ventilation). We compared the clinical factors. We established the cutoff values (COVs) for significantly different factors via receiver operating characteristic curve analysis and identified risk factors by univariate regression. We enrolled 57 patients with COVID‐19 (median age 52 years, 56.1% male). The median time from symptom onset to admission was 8 days. Seven patients developed critical disease (PG: 12.2%), two (3.5%) of whom died; 50 had stable disease. Univariate logistic analysis identified an elevated lactate dehydrogenase (LDH) level (COV: 309 U/l), a decreased estimated glomerular filtration rate (eGFR; COV: 68 ml/min), lymphocytopenia (COV: 980/μl), and statin use as significantly associated with disease progression. However, in the Cox proportional hazards analysis, lymphocytopenia at admission was not significant. We identified three candidate risk factors for progression to critical COVID‐19 in adult Japanese patients: statin use, elevated LDH level, and decreased eGFR. To evaluate risk factors for disease progression in Japanese patients with COVID‐19, we examined seventy‐four patients with laboratory‐confirmed COVID‐19. Seven patients (12.2%) developed critical disease requiring mechanical ventilation, two (3.5%) of whom died. We identified three candidate risk factors for progression to critical COVID‐19 in adult Japanese patients: statin use elevated LDH level and decreased eGFR.
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Affiliation(s)
- Takatoshi Higuchi
- Department of Internal MedicineToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Tsutomu Nishida
- Department of GastroenterologyToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Hiromi Iwahashi
- Department of Internal MedicineToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Osamu Morimura
- Department of Internal MedicineToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Yasushi Otani
- Department of Internal MedicineToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Yukiyoshi Okauchi
- Department of Internal MedicineToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Masaru Yokoe
- Department of NeurologyToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Norihiro Suzuki
- Infection Control OfficeToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Masami Inada
- Department of GastroenterologyToyonaka Municipal HospitalToyonakaOsakaJapan
| | - Kinya Abe
- Department of Internal MedicineToyonaka Municipal HospitalToyonakaOsakaJapan
- Infection Control OfficeToyonaka Municipal HospitalToyonakaOsakaJapan
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8
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Tamura K, Takahashi S, Mukohara T, Tanioka M, Yasojima H, Ono M, Naito Y, Shimoi T, Otani Y, Kobayashi K, Kogawa T, Suzuki T, Takase T, Matsunaga R, Masuda N. 346P Phase I study of the liposomal formulation of eribulin (E7389-LF): Results from the HER2-negative breast cancer expansion. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.448] [Citation(s) in RCA: 1] [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: 12/01/2022] Open
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9
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Yokota T, Zenda S, Ota I, Yamazaki T, Yamaguchi T, Ogawa T, Tachibana H, Toshiyasu T, Homma A, Miyaji T, Mashiko T, Hamauchi S, Tominaga K, Ishii S, Otani Y, Orito N, Uchitomi Y. 931P Topical steroid versus placebo for the prevention of radiation dermatitis in head and neck cancer patients receiving chemoradiotherapy: A phase III, randomized, double-blinded trial: J-SUPPORT 1602(TOPICS). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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Seki S, Garst M, Waizner J, Takagi R, Khanh ND, Okamura Y, Kondou K, Kagawa F, Otani Y, Tokura Y. Propagation dynamics of spin excitations along skyrmion strings. Nat Commun 2020; 11:256. [PMID: 31937762 PMCID: PMC6959257 DOI: 10.1038/s41467-019-14095-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [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: 03/25/2019] [Accepted: 12/10/2019] [Indexed: 11/09/2022] Open
Abstract
Magnetic skyrmions, topological solitons characterized by a two-dimensional swirling spin texture, have recently attracted attention as stable particle-like objects. In a three-dimensional system, a skyrmion can extend in the third dimension forming a robust and flexible string structure, whose unique topology and symmetry are anticipated to host nontrivial functional responses. Here we experimentally demonstrate the coherent propagation of spin excitations along skyrmion strings for the chiral-lattice magnet Cu2OSeO3. We find that this propagation is directionally non-reciprocal and the degree of non-reciprocity, as well as group velocity and decay length, are strongly dependent on the character of the excitation modes. These spin excitations can propagate over a distance exceeding 50 μm, demonstrating the excellent long-range ordered nature of the skyrmion-string structure. Our combined experimental and theoretical analyses offer a comprehensive account of the propagation dynamics of skyrmion-string excitations and suggest the possibility of unidirectional information transfer along such topologically protected strings.
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Affiliation(s)
- S Seki
- Department of Applied Physics, University of Tokyo, Tokyo, 113-8656, Japan. .,Institute of Engineering Innovation, University of Tokyo, Tokyo, 113-8656, Japan. .,RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan. .,PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, 332-0012, Japan.
| | - M Garst
- Institut für Theoretische Physik, Technische Universität Dresden, 01062, Dresden, Germany.,Institut für Theoretische Festkörperphysik, Karlsruher Institut für Technologie, 76131, Karlsruhe, Germany
| | - J Waizner
- Institut für Theoretische Physik, Universität zu Köln, Zülpicher Str. 77a, 50937, Köln, Germany
| | - R Takagi
- Department of Applied Physics, University of Tokyo, Tokyo, 113-8656, Japan.,Institute of Engineering Innovation, University of Tokyo, Tokyo, 113-8656, Japan.,RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan
| | - N D Khanh
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan
| | - Y Okamura
- Department of Applied Physics, University of Tokyo, Tokyo, 113-8656, Japan
| | - K Kondou
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan
| | - F Kagawa
- Department of Applied Physics, University of Tokyo, Tokyo, 113-8656, Japan.,RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan
| | - Y Otani
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan.,Institute for Solid State Physics, University of Tokyo, Kashiwa, 277-8581, Japan
| | - Y Tokura
- Department of Applied Physics, University of Tokyo, Tokyo, 113-8656, Japan.,RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan
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11
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Abstract
Eosinophilic granulomatosis with polyangiitis (EGPA) is a rare systemic vasculitis characterized by asthma, eosinophilia, and diffuse eosinophilic infiltration. Although cardiovascular involvement is common and a leading cause of EGPA-related mortality, severe pericarditis-led cardiac tamponade occurs rarely. We herein report a 72-year-old man with anti-proteinase 3 (anti-PR3) anti-neutrophil cytoplasmic antibody (ANCA)-positive EGPA diagnosed by the presence of cardiac tamponade, which responded quickly to pericardiocentesis and a single administration of prednisolone. This is the first case of anti-PR3 ANCA-positive EGPA with cardiac tamponade; the patient displayed clinical features of both ANCA-positive and ANCA-negative cases.
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Affiliation(s)
- Yuji Yamamoto
- Department of Internal Medicine, Toyonaka Municipal Hospital, Japan
| | - Yasushi Otani
- Department of Internal Medicine, Toyonaka Municipal Hospital, Japan
| | - Fukuko Okabe
- Department of Internal Medicine, Toyonaka Municipal Hospital, Japan
| | - Midori Yoneda
- Department of Internal Medicine, Toyonaka Municipal Hospital, Japan
| | - Osamu Morimura
- Department of Internal Medicine, Toyonaka Municipal Hospital, Japan
| | - Kinya Abe
- Department of Internal Medicine, Toyonaka Municipal Hospital, Japan
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12
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Isshiki H, Kondou K, Takizawa S, Shimose K, Kawabe T, Minamitani E, Yamaguchi N, Ishii F, Shiotari A, Sugimoto Y, Miwa S, Otani Y. Realization of Spin-dependent Functionality by Covering a Metal Surface with a Single Layer of Molecules. Nano Lett 2019; 19:7119-7123. [PMID: 31429575 DOI: 10.1021/acs.nanolett.9b02619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An interface of molecule and metal has attracted much attention in the research field of nanoelectronics because of their high degree of design freedom. Here, we demonstrate an efficient spin-to-charge current conversion at the metal surface covered by a single layer of molecules. Spin currents are injected into an interface between metal (Cu) and lead(II) phthalocyanine by means of the spin pumping method. An observed voltage signal is caused by the inverse Edelstein effect, i.e., spin-to-charge current conversion at the interface. The conversion coefficient, inverse Edelstein length, is estimated to be 0.40 ± 0.06 nm, comparable with the largest Rashba spin splitting of interfaces with heavy metals. Interestingly, the Edelstein length strongly depends on the thickness of the molecule and takes a maximum value when a single layer of molecules is formed on the Cu surface. Comparative analysis between scanning probe microscopy and first-principles calculations reveal that the formation of interface state with Rashba spin splitting causes the inverse Edelstein effect, whose magnitude is sensitive to the adsorption configuration of the molecules.
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Affiliation(s)
- H Isshiki
- Institute for Solid State Physics , The University of Tokyo , Kashiwa , Chiba 277-8581 , Japan
| | - K Kondou
- Institute for Solid State Physics , The University of Tokyo , Kashiwa , Chiba 277-8581 , Japan
- RIKEN Center for Emergent Matter Science (CEMS) , Wako , Saitama 351-0198 , Japan
| | - S Takizawa
- Institute for Solid State Physics , The University of Tokyo , Kashiwa , Chiba 277-8581 , Japan
| | - K Shimose
- Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan
| | - T Kawabe
- Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan
| | - E Minamitani
- Graduate School of Engineering , The University of Tokyo , Bunkyo , Tokyo 113-8656 , Japan
| | - N Yamaguchi
- Graduate School of Natural Science and Technology , Kanazawa University , Kanazawa , Ishikawa 920-1192 , Japan
| | - F Ishii
- Nanomaterials Research Institute , Kanazawa University , Kanazawa , Ishikawa 920-1192 , Japan
| | - A Shiotari
- Department of Advanced Materials Science , The University of Tokyo , Kashiwa , Chiba 277-8561 , Japan
| | - Y Sugimoto
- Department of Advanced Materials Science , The University of Tokyo , Kashiwa , Chiba 277-8561 , Japan
| | - S Miwa
- Institute for Solid State Physics , The University of Tokyo , Kashiwa , Chiba 277-8581 , Japan
- Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan
| | - Y Otani
- Institute for Solid State Physics , The University of Tokyo , Kashiwa , Chiba 277-8581 , Japan
- RIKEN Center for Emergent Matter Science (CEMS) , Wako , Saitama 351-0198 , Japan
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13
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Seto J, Otani Y, Wada T, Suzuki Y, Ikeda T, Araki K, Mizuta K, Ahiko T. Nosocomial Mycobacterium tuberculosis transmission by brief casual contact identified using comparative genomics. J Hosp Infect 2019; 102:116-119. [PMID: 30629999 DOI: 10.1016/j.jhin.2019.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/02/2019] [Indexed: 10/27/2022]
Abstract
This paper reports a case of nosocomial transmission of Mycobacterium tuberculosis by brief casual contact. Routine variable number tandem repeat typing in Yamagata Prefecture, Japan found that M. tuberculosis clinical isolates from two patients showed indistinguishable genotypes. The patients had an epidemiological relationship of sharing a waiting room in a hospital on the same day. As comparative genomics detected only two single nucleotide variants between the isolates, it was concluded that recent tuberculosis transmission occurred in the waiting room. These results indicate that the physical separation of infectious tuberculosis patients is an essential control measure for preventing unpredictable nosocomial transmission by casual contact.
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Affiliation(s)
- J Seto
- Yamagata Prefectural Institute of Public Health, Yamagata, Japan.
| | - Y Otani
- Shonai Public Health Centre, Yamagata, Japan
| | - T Wada
- Nagasaki University, Nagasaki, Japan
| | - Y Suzuki
- Yamagata Prefectural Institute of Public Health, Yamagata, Japan
| | - T Ikeda
- Yamagata Prefectural Institute of Public Health, Yamagata, Japan
| | - K Araki
- Murayama Public Health Centre, Yamagata, Japan
| | - K Mizuta
- Yamagata Prefectural Institute of Public Health, Yamagata, Japan
| | - T Ahiko
- Yamagata Prefectural Institute of Public Health, Yamagata, Japan; Murayama Public Health Centre, Yamagata, Japan
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14
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Tamura H, Otani Y, Iwazawa T, Kashii M, Ando H, Doi R, Adachi S. Extracranial meningiomas concurrently found in the lung and vertebral bone: a case report. J Med Case Rep 2018; 12:279. [PMID: 30261930 PMCID: PMC6161374 DOI: 10.1186/s13256-018-1826-5] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 08/30/2018] [Indexed: 02/07/2023] Open
Abstract
Background Primary pulmonary meningiomas are very rare, and primary intraosseous meningiomas outside the head and neck region have not yet been reported. We report an extremely unusual case of concurrent meningiomas arising in the pulmonary parenchyma and vertebral bone. Case presentation A 40-year-old Asian woman presented with a destructive lesion of the lumbar vertebral bone and a small nodule in the right lung. Five years later, both lesions slightly increased in size. To evaluate both the pulmonary and vertebral lesions, video-assisted thoracic surgery and curettage of the lytic lesion were performed. Both lesions showed similar histopathological findings corresponding to an intracranial meningioma of World Health Organization grade 1. The patient made good postoperative progress and remained free from disease at 41 months after the operation. Conclusions Our patient presented with almost synchronous pulmonary and lumbar vertebral intraosseous meningiomas. Regarding the relationship between the two lesions, there are two possibilities: Independent tumors occurred coincidentally or the primary pulmonary meningioma metastasized to the vertebral bone despite its bland morphology. It is important to keep in mind the exceptionally rare condition of extracranial meningioma.
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Affiliation(s)
- Hiromi Tamura
- Department of Pathology, Toyonaka Municipal Hospital, Shibahara-cho 4-14-1, Toyonaka, Osaka, 560-8565, Japan.
| | - Yasushi Otani
- Department of Respiratory Medicine, Toyonaka Municipal Hospital, Shibahara-cho 4-14-1, Toyonaka, Osaka, 560-8565, Japan
| | - Takashi Iwazawa
- Department of Surgery, Toyonaka Municipal Hospital, Shibahara-cho 4-14-1, Toyonaka, Osaka, 560-8565, Japan
| | - Masafumi Kashii
- Department of Orthopedics, Toyonaka Municipal Hospital, Shibahara-cho 4-14-1, Toyonaka, Osaka, 560-8565, Japan
| | - Hiroka Ando
- Department of Pathology, Toyonaka Municipal Hospital, Shibahara-cho 4-14-1, Toyonaka, Osaka, 560-8565, Japan
| | - Reiko Doi
- Department of Pathology, Toyonaka Municipal Hospital, Shibahara-cho 4-14-1, Toyonaka, Osaka, 560-8565, Japan
| | - Shiro Adachi
- Department of Pathology, Toyonaka Municipal Hospital, Shibahara-cho 4-14-1, Toyonaka, Osaka, 560-8565, Japan
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15
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16
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Aoki O, Otani Y, Morishita S. Effects of galvanic vestibular stimulation with white and pink noise on upright standing sway for healthy adults. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.809] [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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17
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Otani Y, Ichikawa T, Kurozumi K, Inoue S, Ishida J, Oka T, Shimizu T, Tomita Y, Hattori Y, Uneda A, Matsumoto Y, Michiue H, Date I. Fibroblast growth factor 13 regulates glioma cell invasion and is important for bevacizumab-induced glioma invasion. Oncogene 2017; 37:777-786. [PMID: 29059154 DOI: 10.1038/onc.2017.373] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/22/2017] [Accepted: 08/29/2017] [Indexed: 12/16/2022]
Abstract
Glioblastoma has the poorest prognosis, and is characterized by excessive invasion and angiogenesis. To determine the invasive mechanisms, we previously used two glioma cell lines (J3T-1 and J3T-2) with different invasive phenotypes. The J3T-1 showed abundant angiogenesis and tumor cell invasion around neovasculature, while J3T-2 showed diffuse cell infiltration into surrounding healthy parenchyma. Microarray analyses were used to identify invasion-related genes in J3T-2 cells, and the expressed genes and their intracellular and intratumoral distribution patterns were evaluated in J3T-2 cell lines, human glioma cell lines, human glioblastoma stem cells and human glioblastoma specimens. To determine the role of the invasion-related genes, invasive activities were evaluated in vitro and in vivo. Fibroblast growth factor 13 (FGF13) was overexpressed in J3T-2 cells compared to J3T-1 cells, and in human glioma cell lines, human glioblastoma stem cells and human glioblastoma specimens, when compared to that of normal human astrocytes. Immunohistochemical staining and the RNA-seq (sequencing) data from the IVY Glioblastoma Atlas Project showed FGF13 expression in glioma cells in the invasive edges of tumor specimens. Also, the intracellular distribution was mainly in the cytoplasm of tumor cells and colocalized with tubulin. Overexpression of FGF13 stabilized tubulin dynamics in vitro and knockdown of FGF13 decreased glioma invasion both in vitro and in vivo and prolonged overall survival of several xenograft models. FGF13 was negatively regulated by hypoxic condition. Silencing of FGF13 also decreased in vivo bevacizumab-induced glioma invasion. In conclusion, FGF13 regulated glioma cell invasion and bevacizumab-induced glioma invasion, and could be a novel target for glioma treatment.
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Affiliation(s)
- Y Otani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - T Ichikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - K Kurozumi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - S Inoue
- Department of Neurosurgery, Okayama City Hospital, Okayama, Japan
| | - J Ishida
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - T Oka
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - T Shimizu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Y Tomita
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Y Hattori
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - A Uneda
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Y Matsumoto
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - H Michiue
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - I Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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18
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Baba H, Otani Y, Taguchi A, Hamada K, Hayashi Y, Yamaguchi Y. Influence of negamycin-derived stop codon readthrough agents on physiological readthrough event in vivo. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.767] [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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19
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Yasuda K, Tsukazaki A, Yoshimi R, Kondou K, Takahashi KS, Otani Y, Kawasaki M, Tokura Y. Current-Nonlinear Hall Effect and Spin-Orbit Torque Magnetization Switching in a Magnetic Topological Insulator. Phys Rev Lett 2017; 119:137204. [PMID: 29341677 DOI: 10.1103/physrevlett.119.137204] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Indexed: 06/07/2023]
Abstract
The current-nonlinear Hall effect or second harmonic Hall voltage is widely used as one of the methods for estimating charge-spin conversion efficiency, which is attributed to the magnetization oscillation by spin-orbit torque (SOT). Here, we argue the second harmonic Hall voltage under a large in-plane magnetic field with an in-plane magnetization configuration in magnetic-nonmagnetic topological insulator (TI) heterostructures, Cr_{x}(Bi_{1-y}Sb_{y})_{2-x}Te_{3}/(Bi_{1-y}Sb_{y})_{2}Te_{3}, where it is clearly shown that the large second harmonic voltage is governed not by SOT but mainly by asymmetric magnon scattering without macroscopic magnetization oscillation. Thus, this method does not allow an accurate estimation of charge-spin conversion efficiency in TI. Instead, the SOT contribution is exemplified by current pulse induced nonvolatile magnetization switching, which is realized with a current density of 2.5×10^{10} A m^{-2}, showing its potential as a spintronic material.
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Affiliation(s)
- K Yasuda
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - A Tsukazaki
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - R Yoshimi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - K Kondou
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - K S Takahashi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- PRESTO, Japan Science and Technology Agency (JST), Chiyoda-ku, Tokyo, 102-0075, Japan
| | - Y Otani
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa 277-8581, Japan
| | - M Kawasaki
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - Y Tokura
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
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20
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Suzuki S, Ishikawa N, Konoeda F, Seki N, Fukushima S, Takahashi K, Uhara H, Hasegawa Y, Inomata S, Otani Y, Yokota K, Hirose T, Tanaka R, Suzuki N, Matsui M. Nivolumab-related myasthenia gravis with myositis and myocarditis in Japan. Neurology 2017; 89:1127-1134. [PMID: 28821685 DOI: 10.1212/wnl.0000000000004359] [Citation(s) in RCA: 268] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/01/2017] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE To report the clinical features of myasthenia gravis (MG) induced by treatment with immune checkpoint inhibitors using 2-year safety databases based on postmarketing surveys in Japan. METHODS We studied 10,277 patients with cancer who had received monotherapy with either nivolumab or ipilimumab between September 2014 and August 2016. As the control group, 105 patients with idiopathic MG were used. RESULTS There were 12 MG cases (0.12%) among 9,869 patients with cancer who had been treated with nivolumab, but none among 408 patients treated with ipilimumab. These 12 patients included 6 men and 6 women with a mean age of 73.5 ± 6.3 years. MG onset occurred in the early phase after nivolumab treatment and rapidly deteriorated. Nivolumab-related MG (nivoMG) included 4 patients with mild involvement and 8 patients with severe involvement. Bulbar symptoms and myasthenic crisis were observed more frequently in nivoMG than idiopathic MG. Ten patients were positive for anti-acetylcholine receptor antibodies. Serum creatine kinase levels were markedly elevated to an average level of 4,799 IU/L. Among the 12 patients with nivoMG, 4 had myositis and 3 had myocarditis, with 1 of these patients having both. Immunosuppressive therapy was effective. Postintervention status showed that pharmacologic remission or minimal manifestations were obtained in 4 patients; however, 2 patients died. Immune-related adverse events triggered by nivolumab impaired the patients' daily living activity. CONCLUSIONS The prompt and correct recognition of MG following treatment with immune checkpoint inhibitors in patients with cancer is important.
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Affiliation(s)
- Shigeaki Suzuki
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan.
| | - Nobuhisa Ishikawa
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Fumie Konoeda
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Nobuhiko Seki
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Satoshi Fukushima
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Kikuko Takahashi
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Hisashi Uhara
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Yoshikazu Hasegawa
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Shinichiro Inomata
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Yasushi Otani
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Kenji Yokota
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Takashi Hirose
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Ryo Tanaka
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Norihiro Suzuki
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
| | - Makoto Matsui
- From the Department of Neurology (S.S., N. Suzuki), Keio University School of Medicine, Tokyo; Department of Respiratory Medicine (N.I.), Hiroshima Prefectural Hospital, Hiroshima; Department of Neurology (F.K.), Saiseikai Central Hospital, Tokyo; Division of Medical Oncology (N. Seki), Teikyo University School of Medicine, Tokyo; Department of Dermatology and Plastic Surgery (S.F.), Faculty of Life Sciences, Kumamoto University, Kumamoto; Department of Plastic and Reconstructive Surgery (K.T.), Hakodate Central General Hospital, Hokkaido; Department of Dermatology (H.U.), Sapporo Medical University School of Medicine, Hokkaido; Department of Medical Oncology (Y.H.), Izumi Municipal Hospital, Osaka; Department of Respiratory Medicine (S.I.), Sapporo Kosei Hospital, Hokkaido; Department of Oncology (Y.O.), Toyonaka Municipal Hospital, Osaka; Department of Dermatology (K.Y.), Nagoya University Graduate School of Medicine, Aichi; Department of Respiratory Medicine and Oncology (T.H.), Nippon Medical School Tama Nagayama Hospital, Tokyo; Department of Dermatology (R.T.), Kawasaki Medical School, Okayama; and Department of Neurology (M.M.), Kanazawa Medical College, Ishikawa, Japan
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Kurozumi K, Otani Y, Ishida J, Ichikawa T, Oka T, Shimizu T, Tomita Y, Hattori Y, Michiue H, Tomida S, Matsubara T, Date I. P09.24 The germline mutation PIK3R1Met326Ile correlates with the levels of cysteine<->rich protein 61 and poor prognosis of glioblastoma. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.280] [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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Ishida J, Kurozumi K, Ichikawa T, Shimizu T, Otani Y, Fujii K, Tomita Y, Hattori Y, Date I. P03.08 Pathological Analysis of Xenografts with Malignant Glioma After Anti-angiogenic Therapy. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.123] [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: 11/14/2022] Open
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Kobayashi S, Ohshima S, Matsuda H, Lu XX, Kokubu D, Ida K, Kobayashi T, Yoshinuma M, Kado S, Oishi T, Nagasaki K, Okada H, Minami T, Yamamoto S, Nakamura Y, Ishizawa A, Kenmochi N, Otani Y, Konoshima S, Mizuuchi T. Development of beam emission spectroscopy for turbulence transport study in Heliotron J. Rev Sci Instrum 2016; 87:11E519. [PMID: 27910398 DOI: 10.1063/1.4959949] [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: 06/06/2023]
Abstract
This paper describes the development study of the beam emission spectroscopy (BES) for the turbulent transport study in Heliotron J. Modification of the sightlines (10 × 4 for edge and 10 × 2 for edge) enables us to obtain 2-dimensional BES imaging. The cooling effect on the reduction in the electrical noise of avalanche photodiode (APD) assembly has been investigated using a refrigerant cooling system. When the temperature of the APD element has set to be -20 °C, the electrical noise can be reduced more than 50%. The measurement error of the phase difference in the case of low signal level has been tested by two light-emitting diode lamps. The APD cooling has an effect to improve the measurement error at the low signal level of APD.
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Affiliation(s)
- S Kobayashi
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - S Ohshima
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - H Matsuda
- Graduate School of Energy Science, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - X X Lu
- Graduate School of Energy Science, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - D Kokubu
- Graduate School of Energy Science, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - K Ida
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki, Gifu 509-5292, Japan
| | - T Kobayashi
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki, Gifu 509-5292, Japan
| | - M Yoshinuma
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki, Gifu 509-5292, Japan
| | - S Kado
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - T Oishi
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki, Gifu 509-5292, Japan
| | - K Nagasaki
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - H Okada
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - T Minami
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - S Yamamoto
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Y Nakamura
- Graduate School of Energy Science, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - A Ishizawa
- Graduate School of Energy Science, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - N Kenmochi
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki, Gifu 509-5292, Japan
| | - Y Otani
- Graduate School of Energy Science, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - S Konoshima
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - T Mizuuchi
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
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Otani Y, Ichikawa T. OS3.3 Role of pericytes in angiogenesis-dependent growth of malignant glioma. Neuro Oncol 2016. [DOI: 10.1093/neuonc/now188.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Niimi Y, Kimata M, Omori Y, Gu B, Ziman T, Maekawa S, Fert A, Otani Y. Strong Suppression of the Spin Hall Effect in the Spin Glass State. Phys Rev Lett 2015; 115:196602. [PMID: 26588404 DOI: 10.1103/physrevlett.115.196602] [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: 06/30/2015] [Indexed: 06/05/2023]
Abstract
We have measured spin Hall effects in spin glass metals, CuMnBi alloys, with the spin absorption method in the lateral spin valve structure. Far above the spin glass temperature T(g) where the magnetic moments of Mn impurities are randomly frozen, the spin Hall angle of a CuMnBi ternary alloy is as large as that of a CuBi binary alloy. Surprisingly, however, it starts to decrease at about 4T(g) and becomes as little as 7 times smaller at 0.5T(g). A similar tendency was also observed in anomalous Hall effects in the ternary alloys. We propose an explanation in terms of a simple model considering the relative dynamics between the localized moment and the conduction electron spin.
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Affiliation(s)
- Y Niimi
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - M Kimata
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - Y Omori
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
| | - B Gu
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Ziman
- Institut Laue Langevin, Boîte Postale 156, F-38042 Grenoble Cedex 9, France
- LPMMC (UMR 5493), Université Grenoble Alpes and CNRS, 25 rue des Martyrs, B.P. 166, 38042 Grenoble, France
| | - S Maekawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- ERATO, Japan Science and Technology Agency, Sendai 980-8577, Japan
| | - A Fert
- Unité Mixte de Physique CNRS/Thales, 91767 Palaiseau France associée à l'Université de Paris-Sud, 91405 Orsay, France
| | - Y Otani
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan
- RIKEN-CEMS, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Takahashi H, Kinoshita A, Otani Y, Sekiya R, Iwase A. Single Site Total Laparoscopic Hysterectomy for Huge Uterus With Large Myoma. A Case Report. J Minim Invasive Gynecol 2015; 22:S224. [DOI: 10.1016/j.jmig.2015.08.790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wakamura T, Akaike H, Omori Y, Niimi Y, Takahashi S, Fujimaki A, Maekawa S, Otani Y. Quasiparticle-mediated spin Hall effect in a superconductor. Nat Mater 2015; 14:675-678. [PMID: 25985459 DOI: 10.1038/nmat4276] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 03/26/2015] [Indexed: 06/04/2023]
Abstract
In some materials the competition between superconductivity and magnetism brings about a variety of unique phenomena such as the coexistence of superconductivity and magnetism in heavy-fermion superconductors or spin-triplet supercurrent in ferromagnetic Josephson junctions. Recent observations of spin-charge separation in a lateral spin valve with a superconductor evidence that these remarkable properties are applicable to spintronics, although there are still few works exploring this possibility. Here, we report the experimental observation of the quasiparticle-mediated spin Hall effect in a superconductor, NbN. This compound exhibits the inverse spin Hall (ISH) effect even below the superconducting transition temperature. Surprisingly, the ISH signal increases by more than 2,000 times compared with that in the normal state with a decrease of the injected spin current. The effect disappears when the distance between the voltage probes becomes larger than the charge imbalance length, corroborating that the huge ISH signals measured are mediated by quasiparticles.
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Affiliation(s)
- T Wakamura
- Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - H Akaike
- Department of Quantum Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Y Omori
- Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - Y Niimi
- Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - S Takahashi
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - A Fujimaki
- Department of Quantum Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - S Maekawa
- 1] CREST, Japan Science and Technology, Tokyo 102-0075, Japan [2] Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - Y Otani
- 1] Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan [2] RIKEN-CEMS, 2-1 Hirosawa, Wako 351-0198, Japan
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Mizuno H, Mizuno H, Sumida I, Otani Y, Yagi M, Takashina M, Suzuki O, Yoshioka Y, Koizumi M, Ogawa K. SU-E-T-767: Treatment Planning Study of Prostate Cancer by CyberKnife with Respect to the Urethral Dose. Med Phys 2015. [DOI: 10.1118/1.4925131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Otani Y, Sumida I, Yagi M, Mizuno H, Takashina M, Koizumi M, Ogawa K. SU-E-T-260: Development of a System to Verify for Connection Consistency in a Brachytherapy. Med Phys 2015. [DOI: 10.1118/1.4924622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Rousseau O, Rana B, Anami R, Yamada M, Miura K, Ogawa S, Otani Y. Realization of a micrometre-scale spin-wave interferometer. Sci Rep 2015; 5:9873. [PMID: 25975283 PMCID: PMC4432312 DOI: 10.1038/srep09873] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [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: 09/11/2014] [Accepted: 03/10/2015] [Indexed: 11/25/2022] Open
Abstract
The recent development of spin dynamics opens perspectives for various applications
based on spin waves, including logic devices. The first important step in the
realization of spin-wave-based logics is the manipulation of spin-wave interference.
Here, we present the experimental realization of a micrometre-scale spin-wave
interferometer consisting of two parallel spin-wave waveguides. The spin waves
propagate through the waveguides and the superposition or interference of the
electrical signals corresponding to the spin waves is measured. A direct current
flowing through a metal wire underneath one of the spin-wave waveguides affects the
propagation properties of the corresponding spin wave. The signal of constructive or
destructive interference depends on the magnitude and direction of the applied
direct current. Thus, the present work demonstrates a unique manipulation of
spin-wave interference.
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Affiliation(s)
- O Rousseau
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan
| | - B Rana
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan
| | - R Anami
- 1] Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan [2] Frontier Research Academy for Young Researchers, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan
| | - M Yamada
- Hitachi Ltd., Central Research Laboratory, 1-280 Higashi-koigakubo, Kokubunji-shi,Tokyo 185-8601, Japan
| | - K Miura
- Hitachi Ltd., Central Research Laboratory, 1-280 Higashi-koigakubo, Kokubunji-shi,Tokyo 185-8601, Japan
| | - S Ogawa
- Hitachi Ltd., Central Research Laboratory, 1-280 Higashi-koigakubo, Kokubunji-shi,Tokyo 185-8601, Japan
| | - Y Otani
- 1] Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan [2] Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
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Otani Y, Aoki O, Hirota T, Kato J, Nakazawa M, Ando H. Determination of factors associated with gait recovery and the period for achieving independent walking in post-stroke hemiplegic patients. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.2074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ishida J, Onishi M, Kurozumi K, Ichikawa T, Fujii K, Shimazu Y, Oka T, Otani Y, Shimizu T, Date I. AI-14 * THE ANTI ANGIOGENIC AND INVASIVE EFFECTS OF AN INTEGRIN INHIBITOR AGAINST BEVACIZUMAB-INDUCED INVASIVE GLIOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou238.14] [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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Uwamizu A, Inoue A, Suzuki K, Okudaira M, Shuto A, Shinjo Y, Ishiguro J, Makide K, Ikubo M, Nakamura S, Jung S, Sayama M, Otani Y, Ohwada T, Aoki J. Lysophosphatidylserine analogues differentially activate three LysoPS receptors. J Biochem 2014; 157:151-60. [DOI: 10.1093/jb/mvu060] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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34
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Isohashi F, Yoshioka Y, Mabuchi S, Seo Y, Suzuki O, Sumida I, Otani Y, Kimura T, Ogawa K. Dose-Volume Analysis of Predictors for Acute Hematologic Toxicity in Patients With Cervical Cancer Treated With Postoperative Pelvic Radiation Therapy and Concurrent Nedaplatin-Based Chemotherapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1486] [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: 11/17/2022]
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Abstract
Complementary DNA encoding Rhizopus niveus lipase (RNL) was isolated from the R. niveus IF04759 cDNA library using a synthetic oligonucleotide corresponding to the amino acid sequence of the enzyme. A clone, which had an insert of 1.0 kilobase pairs, was found to contain the coding region of the enzyme. The lipase gene was expressed in Escherichia coli as a lacZ fusion protein. The mature RNL consisted of 297 amino acid residues with a molecular mass of 32 kDa. The RNL sequence showed significant overall homology to Rhizomucor miehei lipase and the putative active site residues were strictly conserved.
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Affiliation(s)
- W Kugimiya
- Central Research Institute, Fuji Oil Co., Ltd., Ibaraki, Japan
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36
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Isohashi F, Akino Y, Otani Y, Suzuki O, Seo Y, Yoshioka Y, Ogawa K. Dose–Volume Analysis of Predictors for Gastrointestinal Complications in Patients With Cervical Cancer Treated With Postoperative Pelvic Radiation Therapy and Concurrent Nedaplatin-Based Chemotherapy. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1082] [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: 11/29/2022]
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37
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Hirata H, Tetsumoto S, Kijima T, Kida H, Kumagai T, Takahashi R, Otani Y, Inoue K, Kuhara H, Shimada K, Nagatomo I, Takeda Y, Goya S, Yoshizaki K, Kawase I, Tachibana I, Kishimoto T, Kumanogoh A. Favorable responses to tocilizumab in two patients with cancer-related cachexia. J Pain Symptom Manage 2013; 46:e9-e13. [PMID: 23602326 DOI: 10.1016/j.jpainsymman.2013.01.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Accepted: 01/26/2013] [Indexed: 11/30/2022]
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38
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Takimoto T, Kijima T, Otani Y, Nonen S, Namba Y, Mori M, Yokota S, Minami S, Komuta K, Uchida J, Imamura F, Furukawa M, Tsuruta N, Fujio Y, Azuma J, Tachibana I, Kumanogoh A. Polymorphisms of CYP2D6 gene and gefitinib-induced hepatotoxicity. Clin Lung Cancer 2013; 14:502-7. [PMID: 23664723 DOI: 10.1016/j.cllc.2013.03.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [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: 10/24/2012] [Revised: 03/05/2013] [Accepted: 03/26/2013] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Gefitinib induces severe hepatotoxicity in approximately a quarter of Japanese patients with epidermal growth factor receptor (EGFR) mutation-positive non-small-cell lung cancer (NSCLC). Gefitinib is metabolized by cytochrome P450 (CYP) enzymes--including CYP3A4/5, CYP1A1, and CYP2D6--in the liver. We hypothesized that polymorphisms of the CYP2D6 gene may account for gefitinib-induced hepatotoxicity. PATIENTS AND METHODS Polymorphisms of the CYP2D6 gene were analyzed in 55 patients with NSCLC who experienced grade ≥ 2 transaminase elevation from gefitinib. The distribution of the CYP2D6 genotype was compared with that of the healthy Japanese population. The correlations between the nonfunctional allele *5 or the reduced-function allele *10 and hepatotoxicity-related clinical factors were also examined. RESULTS The distribution of the CYP2D6 genotype in the study participants was not different from that of the general Japanese population, reported previously. Existence of allele *5 or *10 did not correlate with clinical factors such as onset of hepatotoxicity within 2 months, grade ≥ 3 serum transaminase elevation, and tolerability to dose reduction or rechallenge of gefitinib. However, in 7 patients taking CYP3A4-inhibitory drugs, rechallenge of gefitinib again caused hepatotoxicity in 4 patients with allele *5 or *10 but not in 3 patients with normal alleles (P = .029). Moreover, switching to erlotinib did not cause hepatotoxicity in any of 17 patients with allele *5 or *10 but did in 3 of 8 patients without these alleles (P = .024). CONCLUSION Reduced function of CYP2D6 may partly account for gefitinib-induced hepatotoxicity when CYP3A4 is inhibited. Erlotinib could be safely used in patients with decreased CYP2D6 activity even after they experienced gefitinib-induced hepatotoxicity.
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Affiliation(s)
- Takayuki Takimoto
- Department of Internal Medicine, Toyonaka Municipal Hospital, Osaka, Japan.
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39
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Hata M, Thongyen T, Bao L, Hoshino A, Otani Y, Ikeda T, Furuuchi M. Development of a high-volume air sampler for nanoparticles. Environ Sci Process Impacts 2013; 15:454-462. [PMID: 25208710 DOI: 10.1039/c2em30392b] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
As a tool to evaluate the characteristics of aerosol nano-particles, a high-volume air sampler for the collection of nano-particles was developed based on the inertial filter technology. Instead of the webbed fiber geometry of the existing inertial filter, wire mesh screens alternately layered using spacing sheets with circular holes aligned to provide multi-circular nozzles were newly devised and the separation performance of the filter was investigated experimentally. The separation performance was evaluated for a single-nozzle inertial filter at different filtration velocities. A webbed stainless steel fiber mat attached on the inlet surface of the developed inertial filter was discussed as a pre-separator suppressing the bouncing of particles on meshes. The separation performance of a triple-nozzle inertial filter was also discussed to investigate the influence of scale-up on the separation performance of a multi-nozzle inertial filter. The influence of particle loading on the pressure drop and separation performance was discussed. A supplemental inlet for the nano-particle collection applied to an existing portable high-volume air sampler was devised and the consistency with other types of existing samplers was discussed based on the sampling of ambient particles. The layered-mesh inertial filter with a webbed stainless steel fiber mat as a pre-separator showed good performance in the separation of particles with a d p50 ranging from 150 to 190 nm keeping the influence of loaded particles small. The developed layered-mesh inertial filter was successfully applied to the collection of particles at a d p50∼ 190 nm that was consistent with the results from existing samplers.
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Affiliation(s)
- M Hata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan.
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40
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Nishijima Y, Hirata H, Himeno A, Kida H, Matsumoto M, Takahashi R, Otani Y, Inoue K, Nagatomo I, Takeda Y, Kijima T, Tachibana I, Fujimura Y, Kumanogoh A. Drug-induced thrombotic thrombocytopenic purpura successfully treated with recombinant human soluble thrombomodulin. Intern Med 2013; 52:1111-4. [PMID: 23676600 DOI: 10.2169/internalmedicine.52.9180] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A 61-year-old woman with recurrent non-small cell lung cancer presented with thrombocytopenia, microangiopathic hemolytic anemia, neurological abnormalities, renal failure and a fever that appeared during chemotherapy with gemcitabine and bevacizumab. She was diagnosed with drug-induced thrombotic thrombocytopenic purpura (TTP). After the discontinuation of chemotherapy, the administration of recombinant human soluble thrombomodulin and fresh-frozen plasma rapidly ameliorated the TTP. Hypertension preceded the onset of TTP and required the administration of quadruple therapy on admission. However, after three months, the hypertension was controllable without anti-hypertensive drugs. Twelve months later, the ninth course of vinorelbine was administered safely, preventing the patient's lung cancer from progressing.
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MESH Headings
- Acute Kidney Injury/etiology
- Antibodies, Monoclonal, Humanized/administration & dosage
- Antibodies, Monoclonal, Humanized/adverse effects
- Antihypertensive Agents/therapeutic use
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Antineoplastic Combined Chemotherapy Protocols/adverse effects
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Bevacizumab
- Carcinoma, Large Cell/complications
- Carcinoma, Large Cell/drug therapy
- Carcinoma, Non-Small-Cell Lung/complications
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Cisplatin/administration & dosage
- Combined Modality Therapy
- Deoxycytidine/administration & dosage
- Deoxycytidine/adverse effects
- Deoxycytidine/analogs & derivatives
- Docetaxel
- Erlotinib Hydrochloride
- Female
- Glutamates/administration & dosage
- Guanine/administration & dosage
- Guanine/analogs & derivatives
- Humans
- Hypertension/drug therapy
- Hypertension/etiology
- Lung Neoplasms/complications
- Lung Neoplasms/drug therapy
- Middle Aged
- Oxonic Acid/administration & dosage
- Pemetrexed
- Plasma
- Purpura, Thrombotic Thrombocytopenic/chemically induced
- Purpura, Thrombotic Thrombocytopenic/drug therapy
- Purpura, Thrombotic Thrombocytopenic/therapy
- Pyridines/administration & dosage
- Quinazolines/administration & dosage
- Recombinant Proteins/therapeutic use
- Solubility
- Taxoids/administration & dosage
- Tegafur/administration & dosage
- Thrombomodulin/therapeutic use
- Gemcitabine
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Affiliation(s)
- Yu Nishijima
- Department of Respiratory Medicine, Allergy and Rheumatic Diseases, Osaka University Graduate School of Medicine, Japan
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41
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Iwasaki T, Takeda Y, Maruyama K, Yokosaki Y, Tsujino K, Tetsumoto S, Kuhara H, Nakanishi K, Otani Y, Jin Y, Kohmo S, Hirata H, Takahashi R, Suzuki M, Inoue K, Nagatomo I, Goya S, Kijima T, Kumagai T, Tachibana I, Kawase I, Kumanogoh A. Deletion of tetraspanin CD9 diminishes lymphangiogenesis in vivo and in vitro. J Biol Chem 2012; 288:2118-31. [PMID: 23223239 DOI: 10.1074/jbc.m112.424291] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Tetraspanins have emerged as key players in malignancy and inflammatory diseases, yet little is known about their roles in angiogenesis, and nothing is known about their involvement in lymphangiogenesis. We found here that tetraspanins are abundantly expressed in human lymphatic endothelial cells (LEC). After intrathoracic tumor implantation, metastasis to lymph nodes was diminished and accompanied by decreased angiogenesis and lymphangiogenesis in tetraspanin CD9-KO mice. Moreover, lymphangiomas induced in CD9-KO mice were less pronounced with decreased lymphangiogenesis compared with those in wild-type mice. Although mouse LEC isolated from CD9-KO mice showed normal adhesion, lymphangiogenesis was markedly impaired in several assays (migration, proliferation, and cable formation) in vitro and in the lymphatic ring assay ex vivo. Consistent with these findings in mouse LEC, knocking down CD9 in human LEC also produced decreased migration, proliferation, and cable formation. Immunoprecipitation analysis demonstrated that deletion of CD9 in LEC diminished formation of functional complexes between VEGF receptor-3 and integrins (α5 and α9). Therefore, knocking down CD9 in LEC attenuated VEGF receptor-3 signaling, as well as downstream signaling such as Erk and p38 upon VEGF-C stimulation. Finally, double deletion of CD9/CD81 in mice caused abnormal development of lymphatic vasculature in the trachea and diaphragm, suggesting that CD9 and a closely related tetraspanin CD81 coordinately play an essential role in physiological lymphangiogenesis. In conclusion, tetraspanin CD9 modulates molecular organization of integrins in LEC, thereby supporting several functions required for lymphangiogenesis.
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Affiliation(s)
- Takeo Iwasaki
- Department of Respiratory Medicine, Allergy and Rheumatic Diseases, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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42
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Niimi Y, Kawanishi Y, Wei DH, Deranlot C, Yang HX, Chshiev M, Valet T, Fert A, Otani Y. Giant spin Hall effect induced by skew scattering from bismuth impurities inside thin film CuBi alloys. Phys Rev Lett 2012; 109:156602. [PMID: 23102348 DOI: 10.1103/physrevlett.109.156602] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Indexed: 06/01/2023]
Abstract
We demonstrate that a giant spin Hall effect (SHE) can be induced by introducing a small amount of Bi impurities in Cu. Our analysis, based on a new three-dimensional finite element treatment of spin transport, shows that the sign of the SHE induced by the Bi impurities is negative and its spin Hall (SH) angle amounts to -0.24. Such a negative large SH angle in CuBi alloys can be explained by applying the resonant scattering model proposed by Fert and Levy [Phys. Rev. Lett. 106, 157208 (2011)] to 6p impurities.
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Affiliation(s)
- Y Niimi
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, Japan.
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43
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Kurihara N, Kubota T, Otani Y, Kumai K, Kitajima M. High incidence of Helicobacter pylori infection detected serologically in the residual stomach caused by gastric cancer. Oncol Rep 2012; 4:103-6. [PMID: 21590020 DOI: 10.3892/or.4.1.103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Helicobacter pylori (HP) may be involved in the pathogenesis of chronic gastritis, gastric ulcer and intestinal-type gastric cancer. In the present study, we detected HP infection serologically after gastric surgery by measuring the serum anti-HP IgG levels and determining their correlation with the serum gastrin levels. The HP-infection rate after distal gastrectomy was 81.5% (75/92), which was higher than that after total gastrectomy 17.2% (5/29). The serum gastrin levels after distal gastrectomy were within the normal range and there was no significant correlation between the serum gastrin level and serologically detected HP infection, nor between the number of days after distal gastrectomy and HP infection. The high HP infection incidence after distal gastrectomy was confirmed serologically and endoscopically, suggesting HP infection plays some role in the superficial gastritis of the residual stomach without correlating with the serum gastrin levels.
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Affiliation(s)
- N Kurihara
- KEIO UNIV,SCH MED,DEPT SURG,SHINJUKU KU,TOKYO 160,JAPAN
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44
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Otani Y, Yoshida I, Ishikawa S, Ohtaki A, Takahashi T, Koyano T, Hasegawa Y, Sakata S, Morishita Y. Neoadjuvant intra-arterial infusion chemotherapy for invasive thymoma. Oncol Rep 2012; 4:23-5. [PMID: 21590005 DOI: 10.3892/or.4.1.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Four patients with stage III or IVa invasive thymoma successfully underwent surgical intervention and radiotherapy following neoadjuvant intra-arterial chemotherapy including 50 mg/m(2) of cisplatin and 20 mg/m(2) of adriamycin. Remarkable reduction rates (60% or more) of the tumor size were obtained without significant side effects. About 4 weeks after neoadjuvant chemotherapy, an extended thymectomy including invaded organs was easily performed with a small amount of intraoperative bleeding. All patients but one are currently alive and disease-free. This method may be a new therapeutic strategy in the management of invasive thymoma.
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45
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Wei D, Niimi Y, Gu B, Ziman T, Maekawa S, Otani Y. The spin Hall effect as a probe of nonlinear spin fluctuations. Nat Commun 2012; 3:1058. [DOI: 10.1038/ncomms2063] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 08/14/2012] [Indexed: 11/09/2022] Open
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46
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Minami T, Kijima T, Otani Y, Kohmo S, Takahashi R, Nagatomo I, Hirata H, Suzuki M, Inoue K, Takeda Y, Kida H, Tachibana I, Kumanogoh A. Abstract 778: HER2 as therapeutic target for overcoming ATP-binding cassette transporter-mediated chemoresistance in small cell lung cancer. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-778] [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: 11/16/2022]
Abstract
Abstract
Small Cell Lung Cancer (SCLC) easily acquires multidrug resistance after successful initial therapy. Overexpression of ATP-binding cassette (ABC) transporters is important for the multidrug resistance. Among them, ABCB1 and ABCG2 are known to be upregulated in chemoresistant SCLC. We found that human epidermal growth factor receptor 2 (HER2) expression is also upregulated in chemoresistant SBC-3/ETP, SBC-3/SN-38 and SBC-3/CDDP cells, compared to chemosensitive SBC-3 cells. Lapatinib, a tyrosine kinase inhibitor of HER2, could not suppress proliferation of these HER2-positive SCLC cells, but successfully restored chemosensitivity to etoposide and SN-38 in SBC-3/ETP and SBC-3/SN-38 cells, respectively. The reversal effect of lapatinib was thought to be caused by inhibition of drug efflux-pump functions of ABC transporters, and was producible with a clinically applicable concentration. Moreover, knocking down of HER2 by a small interfering RNA weakened the effect of lapatinib on ABCB1, indicating the involvement of HER2 in the inhibitory mechanisms. Notably, we demonstrated that caveolin-1 and Src play key roles in modulating ABCB1 function via HER2 inactivation. In SBC-3/ETP cells, dephosphorylation of HER2 by lapatinib activates Src and successively leads to increase caveolin-1 phosphorylation. Through this process, caveolin-1 dissociates from HER2 and strengthens association with ABCB1, and finally impairs the pump functions. Furthermore, we demonstrated that treatment by lapatinib in combination with etoposide or irinotecan significantly suppresses the growth of subcutaneous SBC-3/ETP and SBC-3/SN-38 tumors in mice, respectively. Collectively, these results indicate that combination therapy with lapatinib and cytotoxic agents could conquer ABC transporter-mediated chemoresistance in SCLC, especially in HER2-positive cases.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 778. doi:1538-7445.AM2012-778
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Affiliation(s)
| | - Takashi Kijima
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | - Yasushi Otani
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | - Satoshi Kohmo
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | - Ryo Takahashi
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | - Izumi Nagatomo
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | | | - Mayumi Suzuki
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | - Koji Inoue
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshito Takeda
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiroshi Kida
- 1Osaka University Graduate School of Medicine, Suita, Japan
| | - Isao Tachibana
- 1Osaka University Graduate School of Medicine, Suita, Japan
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47
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Minami T, Kijima T, Otani Y, Kohmo S, Takahashi R, Nagatomo I, Hirata H, Suzuki M, Inoue K, Takeda Y, Kida H, Tachibana I, Kumanogoh A. HER2 as therapeutic target for overcoming ATP-binding cassette transporter-mediated chemoresistance in small cell lung cancer. Mol Cancer Ther 2012; 11:830-41. [PMID: 22389470 DOI: 10.1158/1535-7163.mct-11-0884] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Small cell lung cancer (SCLC) easily acquires multidrug resistance after successful initial therapy. Overexpression of ATP-binding cassette (ABC) transporters is important for the multidrug resistance. Among them, ABCB1 and ABCG2 are known to be upregulated in chemoresistant SCLC cells. We found that human epidermal growth factor receptor 2 (HER2) expressions are also upregulated in chemoresistant SBC-3/ETP, SBC-3/SN-38, and SBC-3/CDDP cells, compared with chemosensitive SBC-3 cells. Lapatinib, a tyrosine kinase inhibitor of HER2, could not suppress proliferation of these HER2-positive SCLC cells alone but successfully restored chemosensitivity to etoposide and SN-38 with a clinically applicable concentration. The reversal effect of lapatinib was thought to be caused by inhibition of drug efflux pump functions of ABC transporters, although lapatinib itself has been reported to be a substrate for them. Moreover, knocking down of HER2 by an short interfering RNA weakened the effect of lapatinib on ABCB1, indicating the involvement of HER2 in the inhibitory mechanisms. Notably, we showed that caveolin-1 and Src play key roles in modulating ABCB1 function via HER2 inactivation. In SBC-3/ETP cells, dephosphorylation of HER2 by lapatinib activates Src and successively leads to increased caveolin-1 phosphorylation. Through this process, caveolin-1 dissociates from HER2 and strengthens association with ABCB1, and finally impairs the pump functions. Furthermore, we showed that treatment by lapatinib in combination with etoposide or irinotecan significantly suppresses the growth of subcutaneous SBC-3/ETP and SBC-3/SN-38 tumors in mice, respectively. Collectively, these results indicate that combination therapy with lapatinib and cytotoxic agents could conquer ABC transporter-mediated chemoresistance especially in HER2-positive SCLC.
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Affiliation(s)
- Toshiyuki Minami
- Department of Respiratory Medicine, Allergy and Rheumatic Diseases, Osaka University Graduate School of Medicine, Osaka University, Osaka, Japan
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48
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Fohr F, Kaltenborn S, Hamrle J, Schultheiss H, Serga AA, Schneider HC, Hillebrands B, Fukuma Y, Wang L, Otani Y. Optical detection of spin transport in nonmagnetic metals. Phys Rev Lett 2011; 106:226601. [PMID: 21702621 DOI: 10.1103/physrevlett.106.226601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2010] [Indexed: 05/31/2023]
Abstract
We determine the dynamic magnetization induced in nonmagnetic metal wedges composed of silver, copper, and platinum by means of Brillouin light scattering microscopy. The magnetization is transferred from a ferromagnetic Ni80Fe20 layer to the metal wedge via the spin pumping effect. The spin pumping efficiency can be controlled by adding an insulating interlayer between the magnetic and nonmagnetic layer. By comparing the experimental results to a dynamical macroscopic spin-transport model we determine the transverse relaxation time of the pumped spin current which is much smaller than the longitudinal relaxation time.
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Affiliation(s)
- F Fohr
- Fachbereich Physik and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Kaiserslautern, Germany
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49
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Kijima T, Shimizu T, Nonen S, Furukawa M, Otani Y, Minami T, Takahashi R, Hirata H, Nagatomo I, Takeda Y, Kida H, Goya S, Fujio Y, Azuma J, Tachibana I, Kawase I. Safe and successful treatment with erlotinib after gefitinib-induced hepatotoxicity: difference in metabolism as a possible mechanism. J Clin Oncol 2011; 29:e588-90. [PMID: 21502555 DOI: 10.1200/jco.2010.34.3368] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Takashi Kijima
- Osaka University Graduate School of Medicine, Osaka, Japan
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Niimi Y, Morota M, Wei DH, Deranlot C, Basletic M, Hamzic A, Fert A, Otani Y. Extrinsic spin Hall effect induced by iridium impurities in copper. Phys Rev Lett 2011; 106:126601. [PMID: 21517335 DOI: 10.1103/physrevlett.106.126601] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Indexed: 05/30/2023]
Abstract
We study the extrinsic spin Hall effect induced by Ir impurities in Cu by injecting a pure spin current into a CuIr wire from a lateral spin valve structure. While no spin Hall effect is observed without Ir impurity, the spin Hall resistivity of CuIr increases linearly with the impurity concentration. The spin Hall angle of CuIr, (2.1±0.6)% throughout the concentration range between 1% and 12%, is practically independent of temperature. These results represent a clear example of predominant skew scattering extrinsic contribution to the spin Hall effect in a nonmagnetic alloy.
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Affiliation(s)
- Y Niimi
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8581, Japan.
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