1
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Stehlik J, Schroder J, Pinney S, Patel C, D'Alessandro D, Goldstein D, Jorde U, Patel S, Mani D, Esmailian F, Kobashigawa J, Takeda K, Uriel N, Pham S, Patel P, Kai M, Sun B, Shah A, Ono M, Couper G, DeNofrio D, Vest A, Joyce D, DeVore A, Mallidi H, Itoh A, Mehra M, Givertz M, Milano C, Farr M. First Report of the Transmedics Organ Care System Heart Perfusion Registry. A Multi-Institutional Outcomes Analysis. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.634] [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: 04/05/2023] Open
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2
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Milano C, Schroder J, Farr M, DeVore A, D'Alessandro D, Goldstein D, Jorde U, Patel S, Daneshmand M, Pinney S, Esmailian F, Kobashigawa J, Takeda K, Uriel N, Pham S, Patel P, Kai M, Sun B, Shah A, Ono M, Couper G, DeNofrio D, Vest A, Joyce D, Mallidi H, Itoh A, Mehra M, Givertz M, Patel C, Stehlik J. Demographics and Outcomes of Clinical Trial vs Initial Post-Approval Use of Transmedics Organ Care System Heart. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.135] [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: 04/05/2023] Open
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3
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Bakir N, Florea I, Damiano M, Schilling J, Hartupee J, Ewald G, Kotkar K, Itoh A, Masood M. Longitudinal Risk Factors for Driveline Infection in Destination Therapy Patients with Left Ventricular Assist Device Support. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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4
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Zhu Y, Itoh A. Pseudo isotope dilution (PID) as an approach for correcting barium-related spectral interferences on the measurement of europium by inductively coupled plasma mass spectrometry (ICP-MS). Anal Chim Acta 2021; 1180:338854. [PMID: 34538328 DOI: 10.1016/j.aca.2021.338854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/05/2021] [Accepted: 07/13/2021] [Indexed: 10/20/2022]
Abstract
Pseudo isotope dilution (PID) was suggested as a simple and practical approach for the correction of barium-related spectral interferences on the measurement of europium by inductively coupled plasma mass spectrometry (ICP-MS). The interferents, i.e. oxides and hydroxides of barium, were regarded as pseudo europium isotopes. An equation for calculating the concentration of europium was deduced and the net contribution of europium isotopes can be obtained by measuring the signal intensity ratios of 151I/153I in a sample, a europium standard, and a barium standard, respectively. The validity of the approach was confirmed by the determination of europium in standard solutions with different concentrations of barium. Determination of europium in river water and seawater certified reference materials was carried out, whose results were in coincidence with reference values.
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Affiliation(s)
- Yanbei Zhu
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8563, Japan.
| | - Akihide Itoh
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
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5
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Ikeda I, Itoh A, Kuo PL, Okahara M. Structural Effects of the Isomeric Hydrophilic Groups of Surfactants on their Properties. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1984-210510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Abstract
In recent years, the utilization of high-technology metals such as rare earth elements (REEs), which exist in extremely low quantities in the Earth, has rapidly increased with the development of new types of industrial materials and pharmaceutical products. This review provides an overview of a new type of potential anthropogenic pollution caused by high-technology metals, with a focus on REEs released into environmental waters from waste treatment plants. In this paper, potential anthropogenic pollution was defined as pollution caused by metals gradually enriched in the environment by human activity, although standard and guideline concentrations of these elements are not regulated by environmental quality standards for water pollution. We review the analytical methods of REEs and the potential anthropogenic pollution of REEs with a focus on Gd, from the viewpoints of a comparison of the degree of Gd anomaly, chemical speciation, ecotoxicology, and bioaccessibility. Moreover, we also highlight the comprehensive analysis based on multielement analysis of high-technology metals as well as REEs for the further screening for potential anthropogenic pollution.
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Affiliation(s)
- Akihide Itoh
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe Chuo, Sagamihara, Kanagawa, 252-5201, Japan.
| | - Akane Yaida
- Graduate School of Environmental Health Sciences, Azabu University, 1-17-71 Fuchinobe Chuo, Sagamihara, Kanagawa, 252-5201, Japan
| | - Yanbei Zhu
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8563, Japan
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7
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Jocher B, Nakajima T, Tanaka Y, Fischer I, Schilling J, Ewald G, Itoh A. Incidence and Risk Factors for Acute Kidney Injury Post-Heart Transplant: An Analysis of Peri-Operative Hemodynamics. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.643] [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: 10/24/2022] Open
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8
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Jeevanandam V, Tatooles A, Milano C, Itoh A, Selzman C, Jacoski M, Pagani F, Slaughter M. Early Bleeding is Associated with Increased Length of Stay and Early Death in LVAD Recipients. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1225] [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: 10/24/2022] Open
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9
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Haft J, Silvestry S, Ransom J, Itoh A, Lowes B, Katz J, Bhama J, Lee S, Rapkin J, Franke A, Estep J. The Impact of HeartMate 3 Speed on Outcomes in the Momentum 3 Clinical Trial. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.769] [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: 10/24/2022] Open
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10
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Tanaka Y, Vu V, Fischer I, Nakajima T, Soyama Y, Jocker B, May-Newman K, Itoh A. Significance of Aortic Valve Insufficiency with Left Ventricular Assist Device: Duration and Regurgitant Flow in a Mock Loop Study. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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11
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Kotkar K, Anand S, Fischer I, Ewald G, Balsara K, Masood M, Itoh A. Surgical Debridement of Driveline Infection with Uninterrupted Warfarin Anticoagulation is Associated with Reduced Postoperative Bleeding Events, Blood Transfusion and Shorter Hospital Stay. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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12
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Rogers J, Milano C, Pamboukian S, Slaughter M, Birks E, Boyce S, Najjar S, Itoh A, Reid B, Mokadam N, Aaronson K, Vassiliades T, Pagani F. Adverse Events and Their Effect on Quality of Life and Functional Capacity in the ENDURANCE and ENDURANCE Supplemental Trials. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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13
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Itoh A, Kodani T, Ono M, Nakano K, Kunieda T, Tsuchida Y, Kaneshima K, Zhu Y, Fujimori E. Potential Anthropogenic Pollution by Eu as well as Gd Observed in River Water around Urban Area. CHEM LETT 2017. [DOI: 10.1246/cl.170405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akihide Itoh
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | - Tetsuo Kodani
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | - Masato Ono
- GL Science Inc., Shinjuku Square Tower 30F, 6-22-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 163-1130
| | - Kazuhiko Nakano
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | - Takumi Kunieda
- GL Science Inc., Shinjuku Square Tower 30F, 6-22-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 163-1130
| | - Yuto Tsuchida
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | - Kimika Kaneshima
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | - Yanbei Zhu
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563
| | - Eiji Fujimori
- The National Environmental Research and Training Institute, Ministry of the Environment Government of Japan, 3-3 Namiki, Tokorozawa, Saitama 359-0042
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14
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Itoh A, Kabe N, Kuwae S, Oura E, Hisamatsu S, Nakano Y, Zhu Y. Multi-Element Profiling Analyses of Symbiotic Zooxanthellae and Soft Tissues in a Giant Clam ( Tridacna crocea) Living in the Coral Reefs and Their Intake Process of Zn and Cd. BCSJ 2017. [DOI: 10.1246/bcsj.20160404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akihide Itoh
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa 252-5201
| | - Noriko Kabe
- Department of Science Education, Faculty of Education, University of the Ryukyus, 1 Aza-senbaru, Nishihara, Nakagami, Okinawa 903-0213
| | - Sho Kuwae
- Department of Science Education, Faculty of Education, University of the Ryukyus, 1 Aza-senbaru, Nishihara, Nakagami, Okinawa 903-0213
| | - Eriko Oura
- Department of Science Education, Faculty of Education, University of the Ryukyus, 1 Aza-senbaru, Nishihara, Nakagami, Okinawa 903-0213
| | - Shin Hisamatsu
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa 252-5201
| | - Yoshikatsu Nakano
- Tropical Biosphere Research Center, Sesoko Station, University of the Ryukyus, 3422 Sesoko, Motobu, Okinawa 905-0227
| | - Yanbei Zhu
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563
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15
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Balsara K, Jolliff L, Masood M, Itoh A. Negative Pressure Dressings Reduce the Incidence of Driveline Infections Following LVAD Implantation. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.687] [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: 12/01/2022] Open
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16
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Itoh A, Pisani M, Baltalzar M, Balsara K, Masood M, Tepper S, Han J, Ranney D, Daneshmand M, Sun B, Kai M, Camacho M, Takayama H. Clinical Benefits and Complications in Patients with Percutaneous VAD versus Surgical LV Vent with ECLS: Multicenter REgiStry for Cardiogenic Shock - Utilization and Efficacy of Device Therapy (RESCUE). J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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17
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Takayama H, Han J, Baltazar-Garcia M, Lucas M, Kai M, Camacho M, Sun B, Ranney D, Daneshmand M, Itoh A. Contemporary ECMO Therapy for Postcardiotomy Shock: From REgiStry for Cardiogenic Shock: Utility and Efficacy of Device Therapy (RESCUE). J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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18
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Balsara K, Jolliff L, Masood M, Itoh A. Prolonged Ventilator Dependence Following LVAD Implant Is an Independent Predictor of Reduced Survival. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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19
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Affiliation(s)
- Kazuho Inaba
- Department of Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | - Makoto Haga
- Department of Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | - Kayo Ueda
- Department of Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | - Akihide Itoh
- Department of Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201
| | | | - Hiroyasu Yoshikawa
- Yoshikawa Science Laboratory, 2-27-2 Shin-Sakuragaoka, Hodogaya-ku, Yokohama, Kanagawa 240-0036
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20
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Takeda K, Goto H, Hirooka Y, Itoh A, Hashimoto S, Niwa K, Hayakawa T. Contrast-enhanced transabdominal ultrasonography in the diagnosis of pancreatic mass lesions. Acta Radiol 2016. [DOI: 10.1258/rsmacta.44.1.103] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Purpose: In this study, we evaluated the diagnostic usefulness of contrast-enhanced transabdominal ultrasonography (CE-US) in pancreatic mass lesions that could be detected by US. Material and Methods: CE-US was performed in 37 patients with various pancreatic mass lesions to evaluate the characteristic vascular findings. Results: Pancreatic tubular adenocarcinoma showed negative enhancement pattern in 16 cases and a slight spotty enhancement pattern in 5 cases. Poorly differentiated adenocarcinoma showed slight homogeneous enhancement pattern in 1 case and acinar cell carcinoma was expressed as a heterogeneous enhancement pattern in 3 cases on CE-US. Endocrine cell tumor had a strong homogeneous enhancement pattern in 3 cases, a strong central enhancement in 1 case and a strong peripheral enhancement in 2 cases. Pseudotumorous pancreatitis showed an iso-enhancement pattern in 6 cases. Conclusion: CE-US is useful in evaluating the vascularity of the lesions in various pancreatic mass lesions in real-time images, and may be useful for the differential diagnosis of pancreatic mass lesions.
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Affiliation(s)
- K. Takeda
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - H. Goto
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
- Department of Endoscopy, Nagoya University School of Medicine, Nagoya, Japan
| | - Y. Hirooka
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
- Department of Endoscopy, Nagoya University School of Medicine, Nagoya, Japan
| | - A. Itoh
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - S. Hashimoto
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - K. Niwa
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - T. Hayakawa
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
- Department of Endoscopy, Nagoya University School of Medicine, Nagoya, Japan
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21
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Byku M, Piotrowski R, Itoh A, Larue S, Vader J, Holley C, Ewald G. Pre-Extra Corporeal Membrane Oxygenation (ECMO) MELD Score May Predict Meaningful Survival. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1097] [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] Open
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22
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Taghavi S, Tandon D, Diamant A, Keith A, Ewald G, Lawrence S, Masood M, Balsara K, Itoh A. Surgical Management of Driveline Infection in Continuous Flow Left Ventricular Assist Devices. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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23
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Nagasawa Y, Tachikawa Y, Yamaguchi E, Tada N, Miura T, Itoh A. Catalytic Aerobic Photo‐oxidation of a Methyl Group on a Heterocycle to Produce an Aldehyde
via
Homolytic CI Bond Cleavage caused by Irradiation with Visible Light. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500811] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Y. Nagasawa
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - Y. Tachikawa
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - E. Yamaguchi
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - N. Tada
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - T. Miura
- Tokyo University of Pharmacy and Life Sciences, 1432‐1 Horinouchi, Hachioji, Tokyo 192‐0392, Japan, Fax: (+81)‐042‐676‐4469; phone: (+81)‐042‐676‐4469
| | - A. Itoh
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
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24
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Yamaguchi T, Sakairi K, Yamaguchi E, Tada N, Itoh A. Magnesium iodide-catalyzed synthesis of 2-substituted quinazolines using molecular oxygen and visible light. RSC Adv 2016. [DOI: 10.1039/c6ra04073j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
We disclose a novel and efficient synthesis of 2-substituted quinazolines by aerobic photooxidative reaction catalyzed by magnesium iodide.
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Affiliation(s)
- T. Yamaguchi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - K. Sakairi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - E. Yamaguchi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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25
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Keith A, Joseph S, Godishala A, Khan A, Jarvis N, Balsara K, LaRue S, Silvestry S, Itoh A. A Novel Socioeconomic Metric for Evaluating Outcomes After Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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26
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Abou el ela A, Balsara K, Lee A, Joseph S, Vader J, LaRue S, Ewald G, Keith A, Silvestry S, Itoh A. Driveline Infections in Left Ventricular Assist Devices: Review of Management Strategies and Their Outcomes. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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27
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Swinney C, Itoh A, Keith A, Balsara K, Silvestry S. The Impact of Inflow Cannula Misalignment on Unloading in Patients With a Ventricular Assist Device. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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28
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Le Guyader L, Savoini M, El Moussaoui S, Buzzi M, Tsukamoto A, Itoh A, Kirilyuk A, Rasing T, Kimel AV, Nolting F. Nanoscale sub-100 picosecond all-optical magnetization switching in GdFeCo microstructures. Nat Commun 2015; 6:5839. [DOI: 10.1038/ncomms6839] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 11/12/2014] [Indexed: 11/09/2022] Open
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29
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Nagasawa Y, Matsusaki Y, Nobuta T, Tada N, Miura T, Itoh A. Aerobic photooxidative synthesis of 2-aryl-4-quinazolinones from aromatic aldehydes and aminobenzamide using catalytic amounts of molecular iodine. RSC Adv 2015. [DOI: 10.1039/c5ra07275a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study reports a safe, mild, and environmentally benign synthetic method toward 2-aryl-4-quinazolinones through a cyclization–oxidation sequence using a catalytic amount of iodine, harmless visible light irradiation, and molecular oxygen.
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Affiliation(s)
- Y. Nagasawa
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - Y. Matsusaki
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - T. Nobuta
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - T. Miura
- Tokyo University of Pharmacy and Life Sciences
- Tokyo 192-0392
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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Radu I, Stamm C, Eschenlohr A, Radu F, Abrudan R, Vahaplar K, Kachel T, Pontius N, Mitzner R, Holldack K, Föhlisch A, Evans RFL, Ostler TA, Mentink J, Chantrell RW, Tsukamoto A, Itoh A, Kirilyuk A, Kimel AV, Rasing T. Engineering Ultrafast Magnetism. Springer Proceedings in Physics 2015. [DOI: 10.1007/978-3-319-07743-7_92] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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31
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Fujiya A, Nobuta T, Yamaguchi E, Tada N, Miura T, Itoh A. Aerobic photooxidative direct asymmetric aldol reactions of benzyl alcohols using water as the solvent. RSC Adv 2015. [DOI: 10.1039/c5ra05155j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report an aerobic photooxidative direct asymmetric aldol reaction using water as the solvent.
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Affiliation(s)
- A. Fujiya
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - T. Nobuta
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - E. Yamaguchi
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - T. Miura
- Tokyo University of Pharmacy and Life Sciences
- Hachioji
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
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32
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Sugiura Y, Tachikawa Y, Nagasawa Y, Tada N, Itoh A. Synthesis of benzoyl cyanide through aerobic photooxidation of benzyl cyanide using carbon tetrabromide as a catalyst. RSC Adv 2015. [DOI: 10.1039/c5ra13269j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We developed a synthetic method toward benzoyl cyanide through aerobic photooxidation of benzyl cyanide in the presence of carbon tetrabromide under visible light irradiation with fluorescent lamps.
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Affiliation(s)
- Y. Sugiura
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - Y. Tachikawa
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - Y. Nagasawa
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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33
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Ishihara M, Ohmiya N, Nakamura M, Funasaka K, Miyahara R, Ohno E, Kawashima H, Itoh A, Hirooka Y, Watanabe O, Ando T, Goto H. Risk factors of symptomatic NSAID-induced small intestinal injury and diaphragm disease. Aliment Pharmacol Ther 2014; 40:538-47. [PMID: 25041257 DOI: 10.1111/apt.12858] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 11/07/2013] [Accepted: 06/11/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND The aetiology for nonsteroidal anti-inflammatory drug (NSAID)-induced small intestinal injuries has not been well characterised. AIM To determine the risk factors of symptomatic NSAID-induced small intestinal injuries, including diaphragm disease. METHODS Of the 1262 symptomatic patients who underwent videocapsule endoscopy and/or double-balloon enteroscopy, 156 consecutive patients were verified as having taken NSAIDs. Their CYP2C9*2, *3 and *13 single nucleotide polymorphisms (SNPs) were determined by allelic discrimination with Taqman 5'-nuclease assays. RESULTS Of the 156 NSAIDs users, 31 patients (20%) were diagnosed with NSAID-induced small intestinal injury. Multivariate analysis indicated that the presence of comorbidities and the use of oxicams (meloxicam, ampiroxicam and lornoxicam) or diclofenac were associated with an increased risk of NSAID-induced small intestinal injury (adjusted OR: 2.97, 95% CI: 1.05-8.41, P = 0.041 and adjusted OR: 7.05, 95% CI: 2.04-24.40, P = 0.002, respectively). The combination of aspirin and non-aspirin NSAID was more damaging than aspirin alone. Age, sex, concomitant use of proton pump inhibitors, indications for NSAIDs use, duration of NSAIDs use and CYP2C9*2, *3 and *13SNPs were unrelated. The use of meloxicam and CYP2C9*3SNPs were significantly associated with an increased risk for diaphragm disease (adjusted OR: 183.75, 95% CI: 21.34-1582.38; P < 0.0001 and adjusted OR: 12.94, 95% CI: 1.55-108.36, P = 0.018, respectively). CONCLUSION The use of specific NSAIDs and the factors interfering with NSAIDs metabolism might associate with small intestinal injury, especially with diaphragm disease.
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Affiliation(s)
- M Ishihara
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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34
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Hashimoto Y, Khorsand AR, Savoini M, Koene B, Bossini D, Tsukamoto A, Itoh A, Ohtsuka Y, Aoshima K, Kimel AV, Kirilyuk A, Rasing T. Ultrafast time-resolved magneto-optical imaging of all-optical switching in GdFeCo with femtosecond time-resolution and a μm spatial-resolution. Rev Sci Instrum 2014; 85:063702. [PMID: 24985822 DOI: 10.1063/1.4880015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We developed an ultrafast time-resolved magneto-optical (MO) imaging system with several millidegree resolution of light polarization angle, 100 fs time-resolution, and a micrometer spatial resolution. A CCD camera with about 10(6) pixels is used for detection and MO images with an absolute angle of the light polarization are acquired by the rotating analyzer method. By optimizing the analysis procedure with a least square method and the help of graphical processor units, this novel system significantly improves the speed for MO imaging, allowing to obtain a MO map of a sample within 15 s. To demonstrate the strength of the technique, we applied the method in a pump-and-probe experiment of all-optical switching in a GdFeCo sample in which we were able to detect temporal evolution of the MO images with sub-picosecond resolution.
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Affiliation(s)
- Y Hashimoto
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - A R Khorsand
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - M Savoini
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - B Koene
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - D Bossini
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - A Tsukamoto
- College of Science and Technology, Nihon University, 7-24-1 Funabashi, Chiba, Japan
| | - A Itoh
- College of Science and Technology, Nihon University, 7-24-1 Funabashi, Chiba, Japan
| | - Y Ohtsuka
- Science and Technology Research Laboratories, Japan Broadcasting Corporation, 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
| | - K Aoshima
- Science and Technology Research Laboratories, Japan Broadcasting Corporation, 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
| | - A V Kimel
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - A Kirilyuk
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Th Rasing
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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Xu W, Silvestry S, Bierhals A, Itoh A, Novak E, Joseph S. Sarcopenia Is Associated with Increased Post Left Ventricular Assist Device Implantation Morbidity. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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36
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Andruska A, Nassif M, Novak E, Ewald G, LaRue S, Silvestry S, Itoh A. LVAD Exchange for Thrombosis Is Associated with Higher Recurrent Rates of Hemolysis, Thrombosis, and Death. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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37
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Raymer D, Vader J, Nassif M, Sparrow C, LaRue S, Ewald G, Itoh A, Silvestry S. Increased BMI Is Associated with Left Ventricular Assist Device-related Infectious Complications. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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38
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Silvestry S, Itoh A, Kazui T, Prasad S. The Impact of LVAD Program Volume and Transplant Status on Cost, Quality, and Survival in in the UHC Database 2010-2012. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.124] [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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39
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Robertson J, Meyers S, Kirklin J, Mertz G, Prasad S, Itoh A, Silvestry S. Concomitant Aortic Valve Procedures in Patients Undergoing Implantation of Continuous-Flow LVADs: An INTERMACS Database Analysis. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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40
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Tibrewala A, Nassif M, Andruska A, Vader J, Novak E, Shuster J, Jackups R, LaRue S, Ewald G, Itoh A. Use of ADP Receptor Inhibitor Prior to LVAD Implantation Does Not Increase Risk of Bleeding. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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41
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Nakamura M, Ohmiya N, Hirooka Y, Miyahara R, Ando T, Watanabe O, Itoh A, Kawashima H, Ohno E, Kinoshita T, Goto H. Endoscopic diagnosis of follicular lymphoma with small-bowel involvement using video capsule endoscopy and double-balloon endoscopy: a case series. Endoscopy 2013. [PMID: 23208779 DOI: 10.1055/s-0032-1325867] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The aims of this study were to compare the detection rates of gastrointestinal follicular lymphoma lesions by video capsule endoscopy (VCE) and double-balloon endoscopy (DBE), and to determine the pathologic diagnostic yields of DBE-directed biopsies. A total of 27 consecutive patients were enrolled. No significant difference in detection rates was observed in 12 patients who underwent total enteroscopy at both VCE and DBE. Pathologic diagnostic yields stratified by location were 91 % in the proximal duodenum at esophagogastroduodenoscopy, 88 % in the jejunum at antegrade DBE, 52 % in the ileum at retrograde DBE, and 57 % in the terminal ileum at colonoscopy. VCE and DBE were helpful in determining treatment in 44 % of patients.
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Affiliation(s)
- M Nakamura
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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42
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Ohmiya N, Nakamura M, Funasaka K, Miyahara R, Ohno E, Kawashima H, Itoh A, Hirooka Y, Toyota H, Goto H. Intestinal Phlebectasias Treated by Endoscopic Injection Sclerotherapy at Double-Balloon Endoscopy. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/s2212-0971(13)70105-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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43
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Imai M, Iriki Y, Itoh A. Target Dependence of Single-Electron-Capture Cross Sections for Slow Be, B, C, Fe, Ni, and W Ions Colliding with Atomic and Molecular Targets. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Imai
- Kyoto University, Department of Nuclear Engineering, Sakyo, Kyoto 606-8501, Japan
| | - Y. Iriki
- Kyoto University, Department of Nuclear Engineering, Sakyo, Kyoto 606-8501, Japan
| | - A. Itoh
- Kyoto University, Quantum Science and Engineering Center, Uji, Kyoto 611-0011, Japan
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44
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Finazzi M, Savoini M, Khorsand AR, Tsukamoto A, Itoh A, Duò L, Kirilyuk A, Rasing T, Ezawa M. Laser-induced magnetic nanostructures with tunable topological properties. Phys Rev Lett 2013; 110:177205. [PMID: 23679767 DOI: 10.1103/physrevlett.110.177205] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Indexed: 05/23/2023]
Abstract
We report the creation and real-space observation of magnetic structures with well-defined topological properties and a lateral size as low as about 150 nm. They are generated in a thin ferrimagnetic film by ultrashort single optical laser pulses. Thanks to their topological properties, such structures can be classified as Skyrmions of a particular type that does not require an externally applied magnetic field for stabilization. Besides Skyrmions, we are able to generate magnetic features with topological characteristics that can be tuned by changing the laser fluence. The stability of such features is accounted for by an analytical model based on the interplay between the exchange and the magnetic dipole-dipole interactions.
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Affiliation(s)
- M Finazzi
- CNISM-Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
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45
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Prasad S, Itoh A, Joseph S, Ewald G, Silvestry S. HeartMate II Explants Due to Hemolysis Show Acute on Chronic Laminar Fibrin Layering at Stators. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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46
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Itoh A, Prasad S, Joseph S, Ewald G, Silvestry S. Subcostal LVAD Exchange Is Associated with Shorter Recovery and Improved Long Term Survival Than Full Sternotomy Approach. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.453] [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: 12/01/2022] Open
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47
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Okada S, Robertson J, Itoh A, Prasad S, Ewald G, Joseph S, Moon M, Damiano R, Silvestry S. Predictive Value of Pulmonary Vascular Remodeling Indices after LVAD Implantation. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.586] [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] Open
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48
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Khorsand AR, Savoini M, Kirilyuk A, Kimel AV, Tsukamoto A, Itoh A, Rasing T. Element-specific probing of ultrafast spin dynamics in multisublattice magnets with visible light. Phys Rev Lett 2013; 110:107205. [PMID: 23521292 DOI: 10.1103/physrevlett.110.107205] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Indexed: 05/22/2023]
Abstract
We demonstrate the feasibility of element-specific probing of ultrafast spin dynamics in the multisublattice magnet TbFe in the visible spectral range. In particular, we show that one can selectively study the dynamics of Tb and Fe sublattices choosing the wavelength of light below and above 610 nm, respectively. We observe that, despite their antiferromagnetic coupling in the ground state, the Tb and Fe spins temporarily align ferromagnetically after excitation with an intense 55-fs laser pulse, after which they relax to their initial states due to the strong anisotropy in Tb.
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Affiliation(s)
- A R Khorsand
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
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49
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Machida Y, Itoh A, So Y, Izawa K, Haga Y, Yamamoto E, Kimura N, Onuki Y, Tsutsumi Y, Machida K. Twofold spontaneous symmetry breaking in the heavy-fermion superconductor UPt3. Phys Rev Lett 2012; 108:157002. [PMID: 22587277 DOI: 10.1103/physrevlett.108.157002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Indexed: 05/31/2023]
Abstract
The field-orientation dependent thermal conductivity of the heavy-fermion superconductor UPt3 was measured down to very low temperatures and under magnetic fields throughout the distinct superconducting phases: B and C phases. In the C phase, a striking twofold oscillation of the thermal conductivity within the basal plane is resolved reflecting the superconducting gap structure with a line of node along the a axis. Moreover, we find an abrupt vanishing of the oscillation across a transition to the B phase, as a clear indication of a change of gap symmetries. We also identify extra two line nodes below and above the equator in both B and C phases. From these results together with the symmetry consideration, the gap function of UPt3 is determined as a E(1u) representation characterized by a combination of two line nodes at the tropics and point nodes at the poles.
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Affiliation(s)
- Y Machida
- Department of Physics, Tokyo Institute of Technology, Meguro 152-8551, Japan
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50
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Khorsand AR, Savoini M, Kirilyuk A, Kimel AV, Tsukamoto A, Itoh A, Rasing T. Role of magnetic circular dichroism in all-optical magnetic recording. Phys Rev Lett 2012; 108:127205. [PMID: 22540622 DOI: 10.1103/physrevlett.108.127205] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Indexed: 05/23/2023]
Abstract
Using magneto-optical microscopy in combination with ellipsometry measurements, we show that all-optical switching with polarized femtosecond laser pulses in ferrimagnetic GdFeCo is subjected to a threshold fluence absorbed in the magnetic layer, independent of either the excitation wavelength or the polarization of the laser pulse. Furthermore, we present a quantitative explanation of the intensity window in which all-optical helicity-dependent switching (AO-HDS) occurs, based on magnetic circular dichroism. This explanation is consistent with all the experimental findings on AO-HDS so far, varying from single- to multiple-shot experiments. The presented results give a solid understanding of the origin of AO-HDS, and give novel insights into the physics of ultrafast, laser controlled magnetism.
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Affiliation(s)
- A R Khorsand
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen, The Netherlands.
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