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Ishii C, Tojo Y, Iwasaki K, Fujii A, Akita T, Nagano M, Mita M, Ide T, Hamase K. Development of a two-dimensional LC-MS/MS system for the determination of proline and 4-hydroxyproline enantiomers in biological and food samples. ANAL SCI 2024; 40:881-889. [PMID: 38598049 DOI: 10.1007/s44211-024-00530-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
A two-dimensional LC-MS/MS system has been developed for the enantioselective determination of proline (Pro), cis-4-hydroxyproline (cis-4-Hyp) and trans-4-hydroxyproline (trans-4-Hyp) in a variety of biological samples. The amino acids were pre-column derivatized with 4-fluoro-7-nitro-2,1,3-benzoxadiazole (NBD-F), and the NBD-derivatives were separated by a reversed-phase column (Singularity RP18) as their D plus L mixtures in the first dimension. The collected target fractions were then introduced into the second dimension where the enantiomers were separated by a Pirkle-type enantioselective column (Singularity CSP-001S) and determined by a tandem mass spectrometer (Triple Quad™ 5500). The method was validated by the standard amino acids and also by human plasma, and sufficient results were obtained for the calibration, precision and accuracy. The method was applied to human plasma and urine, bivalve tissues and fermented food/beverages. D-Pro was widely found in the human physiological fluids, bivalves and several fermented products. Although trans-4-D-Hyp was not found in all the tested samples, cis-4-D-Hyp was present in human urine and tissues of the ark shell, and further studies focusing on the origin and physiological significance of these D-enantiomers are expected.
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Affiliation(s)
- Chiharu Ishii
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yosuke Tojo
- MIRAI Technology Institute, Shiseido Co., Ltd., 1-2-11 Takashima, Nishi-ku, Yokohama, 220-0011, Japan
| | - Komei Iwasaki
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Akira Fujii
- Sakamoto Kurozu, Inc., 21-15 Uenosono-cho, Kagoshima, 890-0052, Japan
| | - Takeyuki Akita
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masanobu Nagano
- Sakamoto Kurozu, Inc., 21-15 Uenosono-cho, Kagoshima, 890-0052, Japan
| | - Masashi Mita
- KAGAMI, Inc., 7-7-15, Saito-asagi, Ibaraki, Osaka, 567-0085, Japan
| | - Tomomi Ide
- Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kenji Hamase
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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Hashimoto T, Fujii A, Watanabe J, Sato Y, Kanno H, Tsunoda R. P295 Evaluation of Sentinel Lymph Node by sonography. Breast 2023. [DOI: 10.1016/s0960-9776(23)00413-7] [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: 03/18/2023] Open
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3
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Nakamura T, Matsumoto M, Amano K, Enokido Y, Zolensky ME, Mikouchi T, Genda H, Tanaka S, Zolotov MY, Kurosawa K, Wakita S, Hyodo R, Nagano H, Nakashima D, Takahashi Y, Fujioka Y, Kikuiri M, Kagawa E, Matsuoka M, Brearley AJ, Tsuchiyama A, Uesugi M, Matsuno J, Kimura Y, Sato M, Milliken RE, Tatsumi E, Sugita S, Hiroi T, Kitazato K, Brownlee D, Joswiak DJ, Takahashi M, Ninomiya K, Takahashi T, Osawa T, Terada K, Brenker FE, Tkalcec BJ, Vincze L, Brunetto R, Aléon-Toppani A, Chan QHS, Roskosz M, Viennet JC, Beck P, Alp EE, Michikami T, Nagaashi Y, Tsuji T, Ino Y, Martinez J, Han J, Dolocan A, Bodnar RJ, Tanaka M, Yoshida H, Sugiyama K, King AJ, Fukushi K, Suga H, Yamashita S, Kawai T, Inoue K, Nakato A, Noguchi T, Vilas F, Hendrix AR, Jaramillo-Correa C, Domingue DL, Dominguez G, Gainsforth Z, Engrand C, Duprat J, Russell SS, Bonato E, Ma C, Kawamoto T, Wada T, Watanabe S, Endo R, Enju S, Riu L, Rubino S, Tack P, Takeshita S, Takeichi Y, Takeuchi A, Takigawa A, Takir D, Tanigaki T, Taniguchi A, Tsukamoto K, Yagi T, Yamada S, Yamamoto K, Yamashita Y, Yasutake M, Uesugi K, Umegaki I, Chiu I, Ishizaki T, Okumura S, Palomba E, Pilorget C, Potin SM, Alasli A, Anada S, Araki Y, Sakatani N, Schultz C, Sekizawa O, Sitzman SD, Sugiura K, Sun M, Dartois E, De Pauw E, Dionnet Z, Djouadi Z, Falkenberg G, Fujita R, Fukuma T, Gearba IR, Hagiya K, Hu MY, Kato T, Kawamura T, Kimura M, Kubo MK, Langenhorst F, Lantz C, Lavina B, Lindner M, Zhao J, Vekemans B, Baklouti D, Bazi B, Borondics F, Nagasawa S, Nishiyama G, Nitta K, Mathurin J, Matsumoto T, Mitsukawa I, Miura H, Miyake A, Miyake Y, Yurimoto H, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Tachibana S, Connolly HC, Lauretta DS, Yoshitake M, Yoshikawa M, Yoshikawa K, Yoshihara K, Yokota Y, Yogata K, Yano H, Yamamoto Y, Yamamoto D, Yamada M, Yamada T, Yada T, Wada K, Usui T, Tsukizaki R, Terui F, Takeuchi H, Takei Y, Iwamae A, Soejima H, Shirai K, Shimaki Y, Senshu H, Sawada H, Saiki T, Ozaki M, Ono G, Okada T, Ogawa N, Ogawa K, Noguchi R, Noda H, Nishimura M, Namiki N, Nakazawa S, Morota T, Miyazaki A, Miura A, Mimasu Y, Matsumoto K, Kumagai K, Kouyama T, Kikuchi S, Kawahara K, Kameda S, Iwata T, Ishihara Y, Ishiguro M, Ikeda H, Hosoda S, Honda R, Honda C, Hitomi Y, Hirata N, Hirata N, Hayashi T, Hayakawa M, Hatakeda K, Furuya S, Fukai R, Fujii A, Cho Y, Arakawa M, Abe M, Watanabe S, Tsuda Y. Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples. Science 2023; 379:eabn8671. [PMID: 36137011 DOI: 10.1126/science.abn8671] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System. The samples contain low abundances of materials that formed at high temperatures, such as chondrules and calcium- and aluminum-rich inclusions. The samples are rich in phyllosilicates and carbonates, which formed through aqueous alteration reactions at low temperature, high pH, and water/rock ratios of <1 (by mass). Less altered fragments contain olivine, pyroxene, amorphous silicates, calcite, and phosphide. Numerical simulations, based on the mineralogical and physical properties of the samples, indicate that Ryugu's parent body formed ~2 million years after the beginning of Solar System formation.
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Affiliation(s)
- T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsumoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Amano
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Enokido
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M E Zolensky
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - T Mikouchi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Genda
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - M Y Zolotov
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - S Wakita
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - R Hyodo
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Nagano
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - D Nakashima
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Isotope Science Center, The University of Tokyo, Tokyo 113-0032, Japan
| | - Y Fujioka
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Kikuiri
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - E Kagawa
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsuoka
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8567, Japan
| | - A J Brearley
- Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China
| | - M Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Matsuno
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Y Kimura
- Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan
| | - M Sato
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R E Milliken
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, Tenerife 38205, Spain
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Hiroi
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - K Kitazato
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D Brownlee
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - D J Joswiak
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - M Takahashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Ninomiya
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Takahashi
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Osawa
- Materials Sciences Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Terada
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - F E Brenker
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - B J Tkalcec
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - L Vincze
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - R Brunetto
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - A Aléon-Toppani
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Q H S Chan
- Department of Earth Sciences, Royal Holloway, University of London, Egham TW20 0EX, UK
| | - M Roskosz
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - J-C Viennet
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - P Beck
- Institut de Planétologie et d'Astrophysique de Grenoble, CNRS, Université Grenoble Alpes, 38000 Grenoble, France
| | - E E Alp
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Nagaashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan.,Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - T Tsuji
- Department of Earth Resources Engineering, Kyushu University, Fukuoka 819-0395, Japan.,School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Ino
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Kwansei Gakuin University, Sanda 669-1330, Japan
| | - J Martinez
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - J Han
- Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA
| | - A Dolocan
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - R J Bodnar
- Department of Geoscience, Virginia Tech, Blacksburg, VA 24061, USA
| | - M Tanaka
- Materials Analysis Station, National Institute for Materials Science, Tsukuba 305-0047, Japan
| | - H Yoshida
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Sugiyama
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - A J King
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - K Fukushi
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - H Suga
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S Yamashita
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - T Kawai
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Inoue
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Noguchi
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan.,Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - F Vilas
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - A R Hendrix
- Planetary Science Institute, Tucson, AZ 85719, USA
| | | | - D L Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - G Dominguez
- Department of Physics, California State University, San Marcos, CA 92096, USA
| | - Z Gainsforth
- Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA
| | - C Engrand
- Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - J Duprat
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - S S Russell
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - E Bonato
- Institute for Planetary Research, Deutsches Zentrum für Luftund Raumfahrt, Rutherfordstraße 2 12489 Berlin, Germany
| | - C Ma
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena CA 91125, USA
| | - T Kawamoto
- Department of Geosciences, Shizuoka University, Shizuoka 422-8529, Japan
| | - T Wada
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan
| | - R Endo
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Enju
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - L Riu
- European Space Astronomy Centre, 28692 Villanueva de la Cañada, Spain
| | - S Rubino
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - P Tack
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - S Takeshita
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - Y Takeichi
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan.,Department of Applied Physics, Osaka University, Suita 565-0871, Japan
| | - A Takeuchi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - A Takigawa
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - D Takir
- NASA Johnson Space Center; Houston, TX 77058, USA
| | | | - A Taniguchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori 590-0494, Japan
| | - K Tsukamoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Yagi
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K Yamamoto
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Yamashita
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - M Yasutake
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - K Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - I Umegaki
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan.,Toyota Central Research and Development Laboratories, Nagakute 480-1192, Japan
| | - I Chiu
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Ishizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Okumura
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - E Palomba
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome 00133, Italy
| | - C Pilorget
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France.,Institut Universitaire de France, Paris, France
| | - S M Potin
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Faculty of Aerospace Engineering, Delft University of Technology, Delft, Netherlands
| | - A Alasli
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - S Anada
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Araki
- Department of Physical Sciences, Ritsumeikan University, Shiga 525-0058, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - C Schultz
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - O Sekizawa
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S D Sitzman
- Physical Sciences Laboratory, The Aerospace Corporation, CA 90245, USA
| | - K Sugiura
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - M Sun
- Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - E Dartois
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - E De Pauw
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - Z Dionnet
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Z Djouadi
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - G Falkenberg
- Deutsches Elektronen-Synchrotron Photon Science, 22603 Hamburg, Germany
| | - R Fujita
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - T Fukuma
- Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - I R Gearba
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - K Hagiya
- Graduate School of Life Science, University of Hyogo, Hyogo 678-1297, Japan
| | - M Y Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Kato
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - T Kawamura
- Institut de Physique du Globe de Paris, Université de Paris, Paris 75205, France
| | - M Kimura
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - M K Kubo
- Division of Natural Sciences, International Christian University, Mitaka 181-8585, Japan
| | - F Langenhorst
- Institute of Geosciences, Friedrich-Schiller-Universität Jena, 07745 Jena, Germany
| | - C Lantz
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Lavina
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - M Lindner
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - J Zhao
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - B Vekemans
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - D Baklouti
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Bazi
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - F Borondics
- Optimized Light Source of Intermediate Energy to LURE (SOLEIL) L'Orme des Merisiers, Gif sur Yvette F-91192, France
| | - S Nagasawa
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - G Nishiyama
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Nitta
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Mathurin
- Institut Chimie Physique, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - T Matsumoto
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - I Mitsukawa
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - H Miura
- Graduate School of Science, Nagoya City University, Nagoya 467-8501, Japan
| | - A Miyake
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Y Miyake
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - H Yurimoto
- Department of Natural History Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - H Yabuta
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - K Sakamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tachibana
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H C Connolly
- Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yoshihara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - D Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Department of Mechanical Engineering, Kanagawa Institute of Technology, Atsugi 243-0292, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Iwamae
- Marine Works Japan, Yokosuka 237-0063, Japan
| | - H Soejima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Noguchi
- Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Namiki
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Matsumoto
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kumagai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - T Kouyama
- Digital Architecture Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - S Kikuchi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kawahara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Kameda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan.,Center for Data Science, Ehime University, Matsuyama 790-8577, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Hitomi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Hayashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - S Furuya
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Fukai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
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4
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Nonaka M, Kanouchi H, Torii S, Nagano H, Kondo S, Fujii A, Nagano M, Takenaka S. Lactic acid induces HSPA1A expression through ERK1/2 activation. Biosci Biotechnol Biochem 2023; 87:191-196. [PMID: 36441019 DOI: 10.1093/bbb/zbac192] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/03/2022] [Indexed: 11/30/2022]
Abstract
Heat shock protein (HSP) A1A protects cells from various stressors. The concentrated liquid of the traditional Japanese rice black vinegar Kurozu increased HSPA1A expression in normal rat liver RLN-10 cells. Lactic acid, the primary component of concentrated Kurozu, induced HSPA1A expression in a concentration-dependent manner. Induction with 4 m m lactic acid increased HSPA1A expression by three times compared with that in the absence of lactic acid. The induction was inhibited by staurosporine or a selective MEK1/2 inhibitor (SL327). The phosphorylation of ERK1/2 was increased by lactic acid. These results suggest that lactic acid induces HSPA1A expression by activating ERK1/2. As well as lactate, 3,5-dihydroxybenzoic acid (DHBA), a ligand for G protein-coupled receptor 81 (GPR81), also induced HSPA1A at lower concentrations than lactate. The increased effect of DHBA on HSPA1A expression as compared with lactate may be related to the higher affinity of DHBA for GPR81 than of lactate.
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Affiliation(s)
- Miwa Nonaka
- Kumamoto Prefectural Johoku Livestock Hygiene Center, Kumamoto, Japan
| | - Hiroaki Kanouchi
- Department of Clinical Nutrition, Osaka Metropolitan University, Osaka, Japan
| | - Saki Torii
- Department of Clinical Nutrition, Osaka Metropolitan University, Osaka, Japan
| | - Hikaru Nagano
- Faculty of Regional Innovation, University of Miyazaki, Miyazaki, Japan
| | - Shigetada Kondo
- Department of Clinical Nutrition, Osaka Metropolitan University, Osaka, Japan
| | | | | | - Shigeo Takenaka
- Department of Clinical Nutrition, Osaka Metropolitan University, Osaka, Japan
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5
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Dukkipati SR, Nakamura T, Nakajima I, Oates C, Narui R, Tanigawa S, Sljapic T, Whang W, Koruth JS, Choudry S, Schaeffer B, Fujii A, Tedrow UB, Sapp JL, Stevenson WG, Reddy VY. Intramural Needle Ablation for Refractory Premature Ventricular Contractions. Circ Arrhythm Electrophysiol 2022; 15:e010020. [PMID: 35476455 DOI: 10.1161/circep.121.010020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Frequent premature ventricular contractions (PVCs) are often amenable to catheter ablation. However, a deep intramural focus may lead to failure due to inability of standard ablation techniques to penetrate the focus. We sought to assess the efficacy and safety of infusion needle ablation (INA) for PVCs that are refractory to standard radiofrequency ablation. METHODS Under 2 Food and Drug Administration approved protocols, INA was evaluated in patients with frequent PVCs that were refractory to standard ablation. Initial targets for ablation were selected by standard mapping techniques. INA was performed with a deflectable catheter equipped with an extendable/retractable needle at the tip that can be extended up to 12 mm into the myocardium and is capable of pacing and recording. After contrast injection for location assessment, radiofrequency ablation was performed with the needle tip using a temperature-controlled mode (maximum temperature 60 °C) with saline infusion from the needle. The primary end point was a decrease in PVC burden to <5000/24 hours at 6 months. The primary safety end point was incidence of procedure- or device-related serious adverse events. RESULTS At 4 centers, 35 patients (age 55.3±16.9 years, 74.2% male) underwent INA. The baseline median PVC burden was 25.4% (interquartile range, 18.4%-33.9%) and mean left ventricular ejection fraction was 37.7±12.3%. Delivering 10.3±8.0 INA lesions/patient (91% had adjunctive standard radiofrequency ablation also) resulted in acute PVC elimination in 71.4%. After a mean follow-up of 156±109 days, the primary efficacy end point was met in 73.3%. The median PVC burden decreased to 0.8% (interquartile range, 0.1%-6.0%; P<0.001). The primary safety end point occurred in 14.3% consisting of 1 (2.9%) heart block, 1 (2.9%) femoral artery dissection, and 3 (8.6%) pericardial effusions (all treated percutaneously). CONCLUSIONS INA is effective for the elimination of frequent PVCs that are refractory to conventional ablation and is associated with an acceptable safety profile. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT01791543 and NCT03204981.
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Affiliation(s)
- Srinivas R Dukkipati
- Helmsley Electrophysiology Center, Department of Cardiology, Icahn School of Medicine at Mount Sinai, NY (S.R.D., C.O., T.S., W.W., J.S.K., S.C., V.Y.R.)
| | - Tomofumi Nakamura
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee (T.N., I.N., R.N., W.G.S.)
| | - Ikutaro Nakajima
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee (T.N., I.N., R.N., W.G.S.)
| | - Connor Oates
- Helmsley Electrophysiology Center, Department of Cardiology, Icahn School of Medicine at Mount Sinai, NY (S.R.D., C.O., T.S., W.W., J.S.K., S.C., V.Y.R.)
| | - Ryohsuke Narui
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee (T.N., I.N., R.N., W.G.S.)
| | - Shinichi Tanigawa
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA (S.T., B.S., A.F., U.B.T.)
| | - Tatjana Sljapic
- Helmsley Electrophysiology Center, Department of Cardiology, Icahn School of Medicine at Mount Sinai, NY (S.R.D., C.O., T.S., W.W., J.S.K., S.C., V.Y.R.)
| | - William Whang
- Helmsley Electrophysiology Center, Department of Cardiology, Icahn School of Medicine at Mount Sinai, NY (S.R.D., C.O., T.S., W.W., J.S.K., S.C., V.Y.R.)
| | - Jacob S Koruth
- Helmsley Electrophysiology Center, Department of Cardiology, Icahn School of Medicine at Mount Sinai, NY (S.R.D., C.O., T.S., W.W., J.S.K., S.C., V.Y.R.)
| | - Subbarao Choudry
- Helmsley Electrophysiology Center, Department of Cardiology, Icahn School of Medicine at Mount Sinai, NY (S.R.D., C.O., T.S., W.W., J.S.K., S.C., V.Y.R.)
| | - Benjamin Schaeffer
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA (S.T., B.S., A.F., U.B.T.)
| | - Akira Fujii
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA (S.T., B.S., A.F., U.B.T.)
| | - Usha B Tedrow
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA (S.T., B.S., A.F., U.B.T.)
| | - John L Sapp
- Heart Rhythm Service, Division of Cardiology, Department of Medicine, QEII Health Sciences Centre, Halifax, Nova Scotia, Canada (J.L.S.)
| | - William G Stevenson
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee (T.N., I.N., R.N., W.G.S.)
| | - Vivek Y Reddy
- Helmsley Electrophysiology Center, Department of Cardiology, Icahn School of Medicine at Mount Sinai, NY (S.R.D., C.O., T.S., W.W., J.S.K., S.C., V.Y.R.)
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6
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Tachibana S, Sawada H, Okazaki R, Takano Y, Sakamoto K, Miura YN, Okamoto C, Yano H, Yamanouchi S, Michel P, Zhang Y, Schwartz S, Thuillet F, Yurimoto H, Nakamura T, Noguchi T, Yabuta H, Naraoka H, Tsuchiyama A, Imae N, Kurosawa K, Nakamura AM, Ogawa K, Sugita S, Morota T, Honda R, Kameda S, Tatsumi E, Cho Y, Yoshioka K, Yokota Y, Hayakawa M, Matsuoka M, Sakatani N, Yamada M, Kouyama T, Suzuki H, Honda C, Yoshimitsu T, Kubota T, Demura H, Yada T, Nishimura M, Yogata K, Nakato A, Yoshitake M, Suzuki AI, Furuya S, Hatakeda K, Miyazaki A, Kumagai K, Okada T, Abe M, Usui T, Ireland TR, Fujimoto M, Yamada T, Arakawa M, Connolly HC, Fujii A, Hasegawa S, Hirata N, Hirata N, Hirose C, Hosoda S, Iijima Y, Ikeda H, Ishiguro M, Ishihara Y, Iwata T, Kikuchi S, Kitazato K, Lauretta DS, Libourel G, Marty B, Matsumoto K, Michikami T, Mimasu Y, Miura A, Mori O, Nakamura-Messenger K, Namiki N, Nguyen AN, Nittler LR, Noda H, Noguchi R, Ogawa N, Ono G, Ozaki M, Senshu H, Shimada T, Shimaki Y, Shirai K, Soldini S, Takahashi T, Takei Y, Takeuchi H, Tsukizaki R, Wada K, Yamamoto Y, Yoshikawa K, Yumoto K, Zolensky ME, Nakazawa S, Terui F, Tanaka S, Saiki T, Yoshikawa M, Watanabe S, Tsuda Y. Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth. Science 2022; 375:1011-1016. [PMID: 35143255 DOI: 10.1126/science.abj8624] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The Hayabusa2 spacecraft investigated the C-type (carbonaceous) asteroid (162173) Ryugu. The mission performed two landing operations to collect samples of surface and subsurface material, the latter exposed by an artificial impact. We present images of the second touchdown site, finding that ejecta from the impact crater was present at the sample location. Surface pebbles at both landing sites show morphological variations ranging from rugged to smooth, similar to Ryugu's boulders, and shapes from quasi-spherical to flattened. The samples were returned to Earth on 6 December 2020. We describe the morphology of >5 grams of returned pebbles and sand. Their diverse color, shape, and structure are consistent with the observed materials of Ryugu; we conclude that they are a representative sample of the asteroid.
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Affiliation(s)
- S Tachibana
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - Y Takano
- Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, Kanagawa 237-0061, Japan
| | - K Sakamoto
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y N Miura
- Earthquake Research Institute, The University of Tokyo, Tokyo 113-0032, Japan
| | - C Okamoto
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Yamanouchi
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - P Michel
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - Y Zhang
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - S Schwartz
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA.,Planetary Science Institute, Tucson, AZ 85719, USA
| | - F Thuillet
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - H Yurimoto
- Department of Earth and Planetary Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Noguchi
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan.,Division of Earth and Planetary Sciences, Kyoto University, Kyoto, Japan
| | - H Yabuta
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - N Imae
- Polar Science Resources Center, National Institute of Polar Research, Tokyo 190-8518, Japan
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - A M Nakamura
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - K Ogawa
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - S Sugita
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Morota
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - S Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - E Tatsumi
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, E-38205 Tenerife, Spain
| | - Y Cho
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Yoshioka
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Sakatani
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Kouyama
- Information Technology and Human Factors, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - H Suzuki
- Department of Physics, Meiji University, Kawasaki 214-8571, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Yoshimitsu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Kubota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Demura
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A I Suzuki
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan.,Department of Economics, Toyo University, Tokyo 112-8606, Japan
| | - S Furuya
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Kumagai
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T R Ireland
- School of Earth and Environmental Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - M Fujimoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H C Connolly
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA.,Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Hasegawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - C Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Ikeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - K Kitazato
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA
| | - G Libourel
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - B Marty
- Université de Lorraine, Centre national de la recherche scientifique, Centre de Recherches Pétrographiques et Géochimiques, F-54000 Nancy, France
| | - K Matsumoto
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Michikami
- Department of Mechanical Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - O Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | | | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - A N Nguyen
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - L R Nittler
- Carnegie Institution for Science, Washington, DC 20015, USA
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Science, Niigata University, Niigata 950-2181, Japan
| | - N Ogawa
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Shimada
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Soldini
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L69 3BX, UK
| | | | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yumoto
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M E Zolensky
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Aeronautics and Astronautics, The University of Tokyo, Tokyo 113-0033, Japan
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7
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Edagawa A, Matsuda N, Ogura T, Uezono K, Izumiyama S, Fujii A. Microbial Contamination of Rubber Ducks Floating in Bathtubs of Bathing Facilities, and an Evaluation of Their Washing Methods. Biocontrol Sci 2022; 26:187-192. [PMID: 35013014 DOI: 10.4265/bio.26.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Microbiological contamination inside rubber ducks floating in the bathtub at a "duck bath" of a bathing facility was analyzed by examining bacterial and amoebic counts. The results of microbial tests, such as standard plate count, heterotrophic plate count and Legionella-LAMP (Loopmediated isothermal amplification) , showed that microbial contamination increased in the rubber ducks over time. When the ducks were washed with sodium hypochlorite, those microbial contaminations were not detected; but when the ducks were washed with an electrolyzed water, the standard plate counts and the heterotrophic plate counts were detected in the amount of 103 per duck in the wipe samples. Without proper washing of rubber ducks, bacteria and free-living amoeba can grow and colonize biofilms, and can thereby cause infection in humans. Also, microbial contamination inside ducks may reduce chlorination of the entire bathtub and cause bacterial infection such as Legionellosis from the bathtub water.
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Affiliation(s)
- Akiko Edagawa
- Department of Environment Health, Osaka Institute of Public Health
| | - Norihiro Matsuda
- Product Development & Quality Control Department, Health Beauty Co., Ltd
| | | | | | - Shinji Izumiyama
- Department of Parasitology, National Institute of Infectious Diseases
| | - Akira Fujii
- Product Development & Quality Control Department, Health Beauty Co., Ltd
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8
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Yamane N, Ikeda A, Tomooka K, Saito I, Maruyama K, Eguchi E, Suyama K, Fujii A, Shiba T, Tanaka K, Kooka A, Nakamura S, Kajita M, Kawamura R, Takata Y, Osawa H, Steptoe A, Tanigawa T. Salivary Alpha-Amylase Activity and Mild Cognitive Impairment among Japanese Older Adults: The Toon Health Study. J Prev Alzheimers Dis 2022; 9:752-757. [PMID: 36281680 DOI: 10.14283/jpad.2022.51] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND There is growing interest in examining objective markers for early identification and behavioral intervention to prevent dementia and mild cognitive impairment in clinical and community settings. OBJECTIVE To investigate the association between salivary alpha-amylase as an objective measure of psychological stress response and mild cognitive impairment for the implication of psychological stress in the development of mild cognitive impairment. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional study involved 865 participants aged ≥ 65 years. A saliva sample was collected in the morning, and the levels of salivary alpha-amylase were assayed. Mild cognitive impairment was evaluated using the Japanese version of the Montreal Cognitive Assessment; a score < 26 was indicative of mild cognitive impairment. A multivariable logistic regression model was used to examine the association of salivary alpha-amylase and mild cognitive impairment after adjusting for age, sex, current drinking status, current smoking status, body mass index, hypertension, diabetes mellitus, physical activity, education, social support, social network, and heart rate variability. RESULTS Salivary alpha-amylase was associated with mild cognitive impairment (the multivariable-adjusted odds ratio [95% confidence interval] for the 1-standard deviation increment of log-transformed salivary alpha-amylase was 1.24 [1.07-1.44]). This significant association persisted after adjusting for various confounding factors. CONCLUSION Elevation of salivary alpha-amylase was associated with mild cognitive impairment among Japanese community-dwelling older adults. This suggests that salivary alpha-amylase is a useful objective marker of psychological stress responses associated with mild cognitive impairment.
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Affiliation(s)
- N Yamane
- Takeshi Tanigawa, MD, PhD, Department of Public Health, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan. Phone: +81 (3) 5802-1049 Fax: +81 (3) 3814-0305,
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9
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Kawakami H, Inoue K, Nagai T, Fujii A, Sasaki Y, Shikano Y, Sakuoka N, Miyazaki M, Takasuka Y, Ikeda S, Yamaguchi O. Left atrial dysfunction still exists in patients who obtain normal left atrial volume after successful ablation of atrial fibrillation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Atrial fibrillation (AF) promotes left atrial (LA) remodeling and vice versa. LA volume index (LAVI) ≥34 mL/m2 is an established cut-off value for identifying an enlarged left atrium. Catheter ablation has become an established therapy for AF and provides a reduction of LA volume by maintaining sinus rhythm (reverse remodeling). However, the definition of LA reverse remodeling after AF ablation is undetermined.
Purpose
We hypothesized that patients with LA dilatation who obtain normal LA volume (LAVI <34 mL/m2) after AF ablation would have better long-term outcomes than those who do not. Furthermore, we investigated whether patients with a normal LA volume could also obtain normal LA function with AF ablation.
Methods
We enrolled 140 AF patients with baseline LAVI ≥34 mL/m2, without AF recurrence for 1 year after the initial AF ablation. We acquired conventional and speckle-tracking echocardiographic parameters within 24 h and at 1 year after the procedure. Late recurrence was defined as AF recurrence >1 year after the initial ablation. To define the normal range of LA function, age-and sex-matched 140 controls without a history of AF were also enrolled.
Results
After restoration of sinus rhythm, overall LA structural and functional parameters were significantly improved, and 75 patients (54%) had normal LA volume at the time of follow-up (Table). During a median follow-up of 44 (31–61) months, 32 patients (23%) experienced a late recurrence of AF. Patients who obtained normal LA volume after AF ablation had fewer late recurrences than those who did not (P<0.01) (Figure). However, LA functional abnormalities still existed in AF patients, even if LA volume was normalized as in controls (Table).
Conclusion
Patients who obtain normal LA volume have better long-term outcomes of AF ablation than those who do not. Although AF ablation promotes beneficial effects on LA structure and function, LA function cannot be normalized even in patients who obtain normal LA volume after successful ablation. Thus, physicians should carefully consider long-term follow-up and residual AF risks, regardless of sinus rhythm restoration by catheter ablation.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | - K Inoue
- Ehime University, Toon, Japan
| | - T Nagai
- Ehime University, Toon, Japan
| | - A Fujii
- Ehime University, Toon, Japan
| | | | | | | | | | | | - S Ikeda
- Ehime University, Toon, Japan
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10
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Kawakami H, Inoue K, Nagai T, Fujii A, Sasaki Y, Shikano Y, Sakuoka N, Miyazaki M, Takasuka Y, Ikeda S, Yamaguchi O. Persistence of left atrial abnormalities despite left atrial volume normalization after successful ablation of atrial fibrillation. J Arrhythm 2021; 37:1318-1329. [PMID: 34621431 PMCID: PMC8485788 DOI: 10.1002/joa3.12624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/22/2021] [Accepted: 08/17/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Left atrial volume index (LAVI) of >34 mL/m2 is the cutoff value for identifying an enlarged left atrium. The definition of left atrial (LA) reverse remodeling after atrial fibrillation (AF) ablation is undetermined. We hypothesized that patients with LA dilatation who achieve normal LA volume (LAVI<34 mL/m2) after AF ablation have better long-term outcomes than those who do not. Furthermore, we investigated whether patients with a normal LA volume can also achieve normal LA function with AF ablation. METHODS We enrolled 140 AF patients with baseline LAVI of ≥34 mL/m2, without AF recurrence for 1 year after the initial AF ablation. We acquired conventional and speckle-tracking echocardiographic parameters within 24 hour and at 1 year after the procedure. To define the normal range of LA function, age- and sex-matched controls without a history of AF were also enrolled. RESULTS After restoration of sinus rhythm, LA structural and functional parameters significantly improved, and 75 patients (54%) had normal LA volume. During a median follow-up of 44 (31-61) months, 32 patients (23%) experienced a late recurrence of AF (AF recurrence >1 year). Patients who achieved normal LA volume after AF ablation had fewer late recurrences than those who did not (P < .01). However, LA abnormalities, especially LA dysfunction, persisted in AF patients even when the LA volume was normalized compared with controls. CONCLUSION Patients who achieved normal LA volume had better long-term outcomes of AF ablation than those who did not; however, LA abnormalities persisted even after successful ablation of AF.
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Affiliation(s)
- Hiroshi Kawakami
- Department of Cardiology, Pulmonology, Hypertension & NephrologyEhime University Graduate School of MedicineEhimeJapan
| | - Katsuji Inoue
- Department of Cardiology, Pulmonology, Hypertension & NephrologyEhime University Graduate School of MedicineEhimeJapan
| | - Takayuki Nagai
- Department of Cardiology, Pulmonology, Hypertension & NephrologyEhime University Graduate School of MedicineEhimeJapan
| | - Akira Fujii
- Department of Cardiology, Pulmonology, Hypertension & NephrologyEhime University Graduate School of MedicineEhimeJapan
| | - Yasuhiro Sasaki
- Department of Cardiology, Pulmonology, Hypertension & NephrologyEhime University Graduate School of MedicineEhimeJapan
| | - Yukari Shikano
- Department of Clinical LaboratoryEhime University HospitalEhimeJapan
| | - Namiko Sakuoka
- Department of Clinical LaboratoryEhime University HospitalEhimeJapan
| | - Maki Miyazaki
- Department of Clinical LaboratoryEhime University HospitalEhimeJapan
| | - Yasunori Takasuka
- Department of Clinical LaboratoryEhime University HospitalEhimeJapan
| | - Shuntaro Ikeda
- Department of Cardiology, Pulmonology, Hypertension & NephrologyEhime University Graduate School of MedicineEhimeJapan
| | - Osamu Yamaguchi
- Department of Cardiology, Pulmonology, Hypertension & NephrologyEhime University Graduate School of MedicineEhimeJapan
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11
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Araki Y, Ida Y, Nonaka M, Yoshizaki Y, Fujii A, Nagano M, Kanouchi H. The Induction of Heat Shock Protein 70 after Oral Administration of Concentrated Brewed Rice Vinegar Kurozu in Mice. J Nutr Sci Vitaminol (Tokyo) 2021; 66:478-480. [PMID: 33132352 DOI: 10.3177/jnsv.66.478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Heat shock protein 70 (HSP70) is induced by various stresses. Since HSP70 has a protein refolding activity and an anti-inflammatory activity, the HSP70 induction will help cells from harmful acute stresses. Feeding a diet containing concentrated brewed rice vinegar Kurozu (CK) diet for 5 wk resulted in an increase of HSP70 in the brains of mice. In the present study, we evaluated whether oral feeding of 25 μL CK induces HSP70 mRNA in brain and other tissues. HSP70 mRNA was significantly increased in the esophagus, small intestine, liver, and brown adipose tissue within 1 h after the oral administration of CK. A weaker induction of HSP70 mRNA was demonstrated in the stomach, large intestine, and brain. HSP70 mRNA induction returned to basal levels within 3 h after feeding. We doubted that the induction of HSP70 mRNA was caused by manual restraint of the mice during CK administration. Manual restraint of the mice did not influence HSP70 mRNA expression in intestine 1 h after these treatments. Our results suggest that transient HSP70 mRNA induction by oral feeding of CK was not caused by retention stress. There are some compounds in CK that increase HSP70 mRNA in various tissues.
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Affiliation(s)
- Yuri Araki
- Department of Basic Veterinary Science, Joint Faculty of Veterinary Medicine, Kagoshima University
| | - Yuta Ida
- Department of Basic Veterinary Science, Joint Faculty of Veterinary Medicine, Kagoshima University
| | - Miwa Nonaka
- Department of Basic Veterinary Science, Joint Faculty of Veterinary Medicine, Kagoshima University
| | - Yumiko Yoshizaki
- Education and Research Center for Fermentation Studies, Faculty of Agriculture, Kagoshima University
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12
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Nishiyama Y, Fujii A, Mori H. Photoreduction synthesis of various azoxybenzenes by visible-light irradiation under continuous flow conditions. J Flow Chem 2021. [DOI: 10.1007/s41981-021-00190-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Nishiyama Y, Fujii A, Mori H. Highly Selective Organic Synthesis by Efficient Mixing in Flow Microreactor. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | - Hajime Mori
- Industrial Technology Center of Wakayama Prefectur
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14
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Kawamata Y, Sugawara N, Ishioka M, Kubo K, Suzuki K, Fujii A, Furukori H, Nakagami T, Yasui-Furukori N, Shimoda K. Different Attitudes of Patients and Psychiatrists Toward Benzodiazepine Treatment. Neuropsychiatr Dis Treat 2021; 17:1927-1936. [PMID: 34163166 PMCID: PMC8214561 DOI: 10.2147/ndt.s314440] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 05/27/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Concern regarding the benefit/risk ratio of the long-term use of benzodiazepines (BDZs) and Z-drugs is increasing. To prevent the risk of dependence in BDZ long-term use, it is essential to understand the attitudes of patients and psychiatrists toward BDZ treatment. The aims of this investigation were to 1) obtain information on patients' attitudes with long-term BDZ use and their referring psychiatrists' attitudes toward BDZ treatment, including their perception of the difficulty of reducing the dose of BDZs, and 2) identify discrepancies between patients' and psychiatrists' perceptions. METHODS A brief questionnaire was constructed to investigate the attitudes of patients receiving BDZ treatment and their referring psychiatrists. Our sample comprised 155 patients who received BDZ treatment for more than one year and their referring eight psychiatrists. Both the patients and their psychiatrists completed our questionnaire between August 2017 and December 2017. RESULTS Of the patients, 13% felt that it was more difficult to reduce the dose of BDZs than their referring psychiatrists (type A discrepancy), while 25% felt that it was less difficult (type B discrepancy). In the multivariate logistic regression analysis, the female sex and both the patients' ("psychotherapy plus BDZs was necessary" and "it was necessary to increase the dose of BDZs") and psychiatrists' beliefs ("short-term prescription was justified") were associated with type A discrepancies. Type B discrepancies were associated with psychiatrists' beliefs that the patient's wishes justified the use of BDZs and that the cessation of treatment with BDZs would lead to the deterioration of their rapport with their patients. CONCLUSION To overcome the discrepancies in the attitudes of patients and psychiatrists toward the cessation of BDZ treatment, it is necessary to promote patient-centered care involving patient psychoeducation and practice guidelines for the decision-making process. Further studies investigating the promotion of patient-centered care to reduce BDZ use are needed.
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Affiliation(s)
- Yasushi Kawamata
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Mibu, Japan
| | - Norio Sugawara
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Mibu, Japan.,Department of Neuropsychiatry, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | | | - Kazutoshi Kubo
- Department of Neuropsychiatry, Hirosaki-Aiseikai Hospital, Hirosaki, Japan
| | - Katsuji Suzuki
- Department of Psychiatry, Aomori Central Hospital, Aomori, Japan
| | - Akira Fujii
- Department of Neuropsychiatry, Mutsu General Hospital, Mutsu, Japan
| | - Hanako Furukori
- Department of Neuropsychiatry, Kuroishi-Akebono Hospital, Kuroishi, Japan
| | - Taku Nakagami
- Department of Psychiatry, Nakagami Mental Clinic, Ohdate, Japan
| | - Norio Yasui-Furukori
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Mibu, Japan.,Department of Neuropsychiatry, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kazutaka Shimoda
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Mibu, Japan
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15
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Mori H, Nishiyama Y, Fujii A, Saito A, Torikai H, Hanasaka T, Koishi H. Biphasic nucleophilic aromatic substitution using a microreactor under droplet formation conditions. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00014d] [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: 11/21/2022]
Abstract
Biphasic nucleophilic aromatic substitution of 4-fluoronitrobenzene proceeded efficiently using a packed bed reactor.
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Affiliation(s)
- Hajime Mori
- Industrial Technology Centre of Wakayama Prefecture
- Wakayama
- Japan
| | | | - Akira Fujii
- Industrial Technology Centre of Wakayama Prefecture
- Wakayama
- Japan
| | - Akane Saito
- Industrial Technology Centre of Wakayama Prefecture
- Wakayama
- Japan
| | - Hitoshi Torikai
- Industrial Technology Centre of Wakayama Prefecture
- Wakayama
- Japan
| | | | - Hideyuki Koishi
- Industrial Technology Centre of Wakayama Prefecture
- Wakayama
- Japan
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16
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Kinoshita M, Inoue K, Akazawa Y, Nakagawa H, Sasaki Y, Higashi H, Fujii A, Uetani T, Aono J, Nagai T, Nishimura K, Ikeda S, Yamaguchi O. Impact of right ventricular contractile reserve on exercise capacity in patients with heart failure: clinical application of low-load exercise stress echocardiography. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The peak oxygen uptake (VO2) evaluated by the cardiopulmonary exercise test (CPX) is an established marker of exercise capacity in patients with heart failure (HF). In particular, peak VO2 <14 ml/kg/min is used to be one of the criteria for heart transplantation. However, given exercise intolerance in patients with HF, it is difficult for refractory HF patients to reach sufficient exercise load. A recent report has highlighted significant impact of right ventricular (RV) function on mortality and urgent heart transplantation. Taken together, we hypothesized that the assessment of RV function was helpful to predict exercise capacity by using low-load exercise stress echocardiography (low-load ESE) in patients with HF.
Purpose
We evaluated whether RV dysfunction assessed by the low-load ESE determined a low peak VO2 <14 ml/kg/min in patients with HF.
Methods
We studied 67 consecutive hospitalized patients with HF (mean age, 65 years; 75% male; mean LV ejection fraction, 36%) who underwent ESE and CPX after stabilized HF condition, and the time interval of CPX and ESE tests was within 48 hours. CPX was performed using an upright cycle ergometer by a ramp protocol, while ESE was performed using ergometer in semi-supine position and the workload was generally increased by 25 watts every 3 minutes. The low-load ESE was defined as the 25 watts exercise. The increments of RV s' velocity at tricuspid annulus and RV strain in the free wall were considered as a preservation of RV contractile reserve. Among the study population, 26 patients were performed right heart catheterization and RV dP/dt/Pmax was estimated as an invasive marker of RV contractility.
Results
The achieved intensity of exercise was 50.4±21.0 watts, and all patients completed the low-load ESE. The invasive study showed that the change of RV s' velocity during the low-load ESE significantly correlated with RV dP/dt/Pmax (r=0.706, p<0.001). As shown in Figure, the non-invasive parameters of RV contractile reserve during the low-load ESE were significantly correlated with peak VO2 (RV s' velocity: r=0.787, p<0.001; RV strain: r=0.244, p=0.047). ROC analysis showed that the change of RV s' velocity during the low-load ESE correctly identified patients with peak VO2 <14 ml/kg/min (AUC=0.95, sensitivity 92.3%, specificity 85.2%). In terms of inter- and intra-observer variabilities, ICCs of the change of RV s' velocity were 0.86 and 0.96, and ICCs of the changes of RV strain were 0.63 and 0.70, respectively.
Conclusion
The change of RV s' velocity during the low-load ESE could determine exercise tolerance in patients with HF. The assessment of RV contractile reserve might be clinically useful to discriminate high risk HF patients.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - K Inoue
- Ehime University, Toon, Japan
| | | | | | | | | | - A Fujii
- Ehime University, Toon, Japan
| | | | - J Aono
- Ehime University, Toon, Japan
| | - T Nagai
- Ehime University, Toon, Japan
| | | | - S Ikeda
- Ehime University, Toon, Japan
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17
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Kinoshita M, Inoue K, Higashi H, Akazawa Y, Sasaki Y, Fujii A, Uetani T, Inaba S, Aono J, Nagai T, Nishimura K, Ikeda S, Yamaguchi O. Impact of right ventricular contractile reserve during low-load exercise on exercise intolerance in heart failure. ESC Heart Fail 2020; 7:3810-3820. [PMID: 32924319 PMCID: PMC7755000 DOI: 10.1002/ehf2.12968] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 04/21/2020] [Revised: 07/21/2020] [Accepted: 08/06/2020] [Indexed: 01/09/2023] Open
Abstract
AIMS Traditional criteria for heart transplantation by cardiopulmonary exercise testing (CPX) include peak oxygen uptake (VO2 ) < 14 mL/kg/min. Reaching a sufficient exercise load is challenging for patients with refractory heart failure (HF) because of their exercise intolerance. Recently, a substantial impact of right ventricular (RV) dysfunction was highlighted on urgent heart transplantation and mortality. This study aims to investigate the impact of RV contractile reserve, assessed by low-load exercise stress echocardiography (ESE), on exercise intolerance defined as peak VO2 < 14 mL/kg/min, in patients with HF. METHODS AND RESULTS We prospectively examined 67 consecutive patients hospitalized for HF who underwent ESE and CPX under a stabilized HF condition. Although low-load ESE was defined as 25 W load exercise, an increment in RV systolic (s') velocity was regarded as the preservation of RV contractile reserve. All patients completed low-load ESE. During low-load ESE, the variation in RV s' velocity significantly correlated with peak VO2 (r = 0.787, P < 0.001). The change in RV s' velocity during low-load ESE accurately identified patients with peak VO2 < 14 mL/kg/min (area under the curve, 0.95; sensitivity, 92%; specificity, 85%). The intraclass correlation coefficient for intra-observer and inter-observer agreement for the change in RV s' velocity was 0.96 (95% confidence interval, 0.88-0.99, P < 0.001) and 0.86 (95% confidence interval, 0.64-0.95, P < 0.001), respectively. The RV-to-pulmonary circulation (PC) coupling, which was assessed by the slope of the relationship between RV s' velocity and pulmonary artery systolic pressure at rest and low-load exercise, was worse in the low-peak VO2 group (<14 mL/kg/min) than the preserved-peak VO2 group (≥14 mL/kg/min). CONCLUSIONS The change in RV s' velocity during low-load ESE could estimate the exercise capacity in HF patients. The assessments of RV contractile reserve and RV-to-PC coupling could be clinically beneficial to distinguish high-risk HF patients.
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Affiliation(s)
- Masaki Kinoshita
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Katsuji Inoue
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Haruhiko Higashi
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Yusuke Akazawa
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Yasuhiro Sasaki
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Akira Fujii
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Teruyoshi Uetani
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Shinji Inaba
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Jun Aono
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Takayuki Nagai
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Kazuhisa Nishimura
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Shuntaro Ikeda
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Osamu Yamaguchi
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
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18
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Kawakami H, Saito M, Kodera S, Fujii A, Nagai T, Uetani T, Tanno S, Oka Y, Ikeda S, Komuro I, Marwick TH, Yamaguchi O. Cost-Effectiveness of Obstructive Sleep Apnea Screening and Treatment Before Catheter Ablation for Symptomatic Atrial Fibrillation. Circ Rep 2020; 2:507-516. [PMID: 33693276 PMCID: PMC7819651 DOI: 10.1253/circrep.cr-20-0074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background:
Although management of obstructive sleep apnea (OSA) has been recommended to improve outcomes of catheter ablation (CA) in patients with symptomatic atrial fibrillation (AF), the most cost-effective way of preprocedural OSA screening is undetermined. This study assessed the cost-effectiveness of OSA management before CA for symptomatic AF. Methods and Results:
A Markov model was developed to assess the cost-effectiveness of 3 OSA detection strategies before CA: no screening; Type 3 portable monitor (PM)-guided screening; and polysomnography (PSG)-guided screening. The target population consisted of a hypothetical cohort of patients aged 65 years with symptomatic AF, with 50% prevalence of OSA. We used a 5-year horizon, with sensitivity analyses for significant variables and scenario analyses for lower and higher OSA prevalence (30% and 70%, respectively). In the base-case, both types of OSA screening were dominant (less costly and more effective) relative to no screening. Although PSG-guided management was more effective than PM-guided management, it was more costly and therefore did not show clear benefit. These findings were replicated in cohorts with lower and higher OSA risks. Conclusions:
OSA screening before CA is cost-effective in patients with symptomatic AF, with PM screening being the most cost-effective. Physicians should consider OSA management using this simple tool in the decision making for treatment of symptomatic AF.
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Affiliation(s)
- Hiroshi Kawakami
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine Toon Japan.,Department of Cardiac Imaging, Baker Heart and Diabetes Institute Melbourne Australia.,School of Public Health and Preventative Medicine, Monash University Melbourne Australia
| | - Makoto Saito
- Department of Cardiology, Kitaishikai Hospital Ozu Japan
| | - Satoshi Kodera
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo Tokyo Japan
| | - Akira Fujii
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine Toon Japan
| | - Takayuki Nagai
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine Toon Japan
| | - Teruyoshi Uetani
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine Toon Japan.,Center for Sleep Medicine, Ehime University Hospital Toon Japan
| | - Sakurako Tanno
- Center for Sleep Medicine, Ehime University Hospital Toon Japan
| | - Yasunori Oka
- Center for Sleep Medicine, Ehime University Hospital Toon Japan
| | - Shuntaro Ikeda
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine Toon Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo Tokyo Japan
| | - Thomas H Marwick
- Department of Cardiac Imaging, Baker Heart and Diabetes Institute Melbourne Australia.,School of Public Health and Preventative Medicine, Monash University Melbourne Australia
| | - Osamu Yamaguchi
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine Toon Japan
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19
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Nagai T, Kawakami H, Sasaki Y, Fujii A, Inoue K, Ikeda S, Yamaguchi O. Atrial tachycardia with multiple reconductions across the surgical incision. J Cardiovasc Electrophysiol 2020; 31:2526-2529. [PMID: 32713018 DOI: 10.1111/jce.14690] [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: 05/27/2020] [Revised: 07/16/2020] [Accepted: 07/20/2020] [Indexed: 11/30/2022]
Abstract
Incisional atrial tachycardia (AT) with multiple penetrating points on one surgical incision has not been reported yet. We present a case of incisional AT following mitral valve annuloplasty with a superior transseptal approach, in which two reconduction sites were parts of the reentrant circuit. Radiofrequency ablation at the reconduction site successfully terminated the tachycardia. A total of four penetrating points were found on the incision line, and radiofrequency ablation at these sites was completed. Detailed mapping of possible reconduction sites along the incision line should be performed to avoid further instances of AT following open heart surgery.
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Affiliation(s)
- Takayuki Nagai
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Hiroshi Kawakami
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Yasuhiro Sasaki
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Akira Fujii
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Katsuji Inoue
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shuntaro Ikeda
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Osamu Yamaguchi
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
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20
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Abstract
Brewed rice vinegar, Kurozu, is a traditional Japanese vinegar with a dark amber color. Kurozu is produced in a regional area of Japan using traditional techniques and made inside handcrafted pottery jars. Kurozu is used as both a seasoning and a healthcare supplement. In vitro and in vivo investigations of ingredients in Kurozu have been carried out. Studies of the functional aspects of Kurozu began in the 1980s, and the health promoting and disease preventing effects of Kurozu have since been elucidated. It was reported that Kurozu improved the symptoms of hypertension, allergies, hypercholesterolemia, enhanced carbohydrate metabolism, and inhibited tumor growth. Kurozu-Moromi is an insoluble product created from the fermentation of Kurozu. Kurozu-Moromi also shows valuable properties, including improvement in dyslipidemia, prevention of hyperglycemia, antitumor effect, and antiallergic activity.Keywords: Amber color, Brewed vinegar, Functionality, Moromi, Pottery jars
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21
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Morota T, Sugita S, Cho Y, Kanamaru M, Tatsumi E, Sakatani N, Honda R, Hirata N, Kikuchi H, Yamada M, Yokota Y, Kameda S, Matsuoka M, Sawada H, Honda C, Kouyama T, Ogawa K, Suzuki H, Yoshioka K, Hayakawa M, Hirata N, Hirabayashi M, Miyamoto H, Michikami T, Hiroi T, Hemmi R, Barnouin OS, Ernst CM, Kitazato K, Nakamura T, Riu L, Senshu H, Kobayashi H, Sasaki S, Komatsu G, Tanabe N, Fujii Y, Irie T, Suemitsu M, Takaki N, Sugimoto C, Yumoto K, Ishida M, Kato H, Moroi K, Domingue D, Michel P, Pilorget C, Iwata T, Abe M, Ohtake M, Nakauchi Y, Tsumura K, Yabuta H, Ishihara Y, Noguchi R, Matsumoto K, Miura A, Namiki N, Tachibana S, Arakawa M, Ikeda H, Wada K, Mizuno T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Yano H, Ozaki M, Takeuchi H, Yamamoto Y, Okada T, Shimaki Y, Shirai K, Iijima Y, Noda H, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Mimasu Y, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Nakazawa S, Terui F, Tanaka S, Yoshikawa M, Saiki T, Watanabe S, Tsuda Y. Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution. Science 2020; 368:654-659. [DOI: 10.1126/science.aaz6306] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 04/02/2020] [Indexed: 11/02/2022]
Affiliation(s)
- T. Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - S. Sugita
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y. Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M. Kanamaru
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - E. Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Departamento de Astrofísica, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain
- Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain
| | - N. Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R. Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - N. Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H. Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M. Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y. Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - S. Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M. Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - C. Honda
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T. Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064 Japan
| | - K. Ogawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
- JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H. Suzuki
- Department of Physics, Meiji University, Kawasaki 214-8571, Japan
| | - K. Yoshioka
- Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa 277-8561, Japan
| | - M. Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N. Hirata
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - M. Hirabayashi
- Department of Aerospace Engineering, Auburn University, Auburn, AL 36849, USA
| | - H. Miyamoto
- Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, Japan
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - T. Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - T. Hiroi
- Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - R. Hemmi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - O. S. Barnouin
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - C. M. Ernst
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - K. Kitazato
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T. Nakamura
- Department of Earth Science, Tohoku University, Sendai 980-8578, Japan
| | - L. Riu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H. Kobayashi
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - S. Sasaki
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - G. Komatsu
- International Research School of Planetary Sciences, Università d’Annunzio, 65127 Pescara, Italy
| | - N. Tanabe
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y. Fujii
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - T. Irie
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - M. Suemitsu
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - N. Takaki
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - C. Sugimoto
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K. Yumoto
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M. Ishida
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - H. Kato
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K. Moroi
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - D. Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - P. Michel
- Université Côte d’Azur, Observatoire de la Côte d’Azur, Centre National de le Recherche Scientifique, Laboratoire Lagrange, 06304 Nice, France
| | - C. Pilorget
- Institut d’Astrophysique Spatiale, Université Paris-Sud, 91405 Orsay, France
| | - T. Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Ohtake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y. Nakauchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Tsumura
- Department of Natural Science, Faculty of Science and Engineering, Tokyo City University, Tokyo 158-8557, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - H. Yabuta
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Y. Ishihara
- National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - R. Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Matsumoto
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - A. Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - N. Namiki
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S. Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M. Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H. Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K. Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T. Mizuno
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - C. Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S. Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - O. Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T. Shimada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Soldini
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L69 3BX, UK
| | - R. Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - H. Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - Y. Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T. Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y. Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Noda
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S. Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T. Yamaguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N. Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - G. Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - Y. Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T. Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - A. Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F. Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T. Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Watanabe
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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22
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Arakawa M, Saiki T, Wada K, Ogawa K, Kadono T, Shirai K, Sawada H, Ishibashi K, Honda R, Sakatani N, Iijima Y, Okamoto C, Yano H, Takagi Y, Hayakawa M, Michel P, Jutzi M, Shimaki Y, Kimura S, Mimasu Y, Toda T, Imamura H, Nakazawa S, Hayakawa H, Sugita S, Morota T, Kameda S, Tatsumi E, Cho Y, Yoshioka K, Yokota Y, Matsuoka M, Yamada M, Kouyama T, Honda C, Tsuda Y, Watanabe S, Yoshikawa M, Tanaka S, Terui F, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Takeuchi H, Yamamoto Y, Okada T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Iwata T, Ozaki M, Abe M, Namiki N, Kitazato K, Tachibana S, Ikeda H, Hirata N, Hirata N, Noguchi R, Miura A. An artificial impact on the asteroid (162173) Ryugu formed a crater in the gravity-dominated regime. Science 2020; 368:67-71. [PMID: 32193363 DOI: 10.1126/science.aaz1701] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 03/04/2020] [Indexed: 11/02/2022]
Abstract
The Hayabusa2 spacecraft investigated the small asteroid Ryugu, which has a rubble-pile structure. We describe an impact experiment on Ryugu using Hayabusa2's Small Carry-on Impactor. The impact produced an artificial crater with a diameter >10 meters, which has a semicircular shape, an elevated rim, and a central pit. Images of the impact and resulting ejecta were recorded by the Deployable CAMera 3 for >8 minutes, showing the growth of an ejecta curtain (the outer edge of the ejecta) and deposition of ejecta onto the surface. The ejecta curtain was asymmetric and heterogeneous and it never fully detached from the surface. The crater formed in the gravity-dominated regime; in other words, crater growth was limited by gravity not surface strength. We discuss implications for Ryugu's surface age.
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Affiliation(s)
- M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - K Ogawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.,JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Kadono
- Department of Basic Sciences, University of Occupational and Environmental Health, Kitakyusyu 807-8555, Japan
| | - K Shirai
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Ishibashi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - C Okamoto
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Takagi
- Department of Regional Business, Aichi Toho University, Nagoya 465-8515, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - P Michel
- Observatoire de la Côte d'Azur, Université Côte d'Azur, CNRS, Laboratoire Lagrange, CS34229, 06304 Nice Cedex 4, France
| | - M Jutzi
- Physics Institute, University of Bern, National Centre of Competence in Research PlanetS, Gesellschaftsstrasse 6, 3012, Bern, Switzerland
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Kimura
- Department of Electrical Engineering, Tokyo University of Science, Noda 278-8510, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Toda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Imamura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - S Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, 38205 San Cristóbal de La Laguna, Spain
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Yoshioka
- Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - C Honda
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - F Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Yamaguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Yoshikawa
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - C Hirose
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - O Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Shimada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Soldini
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L3 5TQ, UK
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - K Kitazato
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - S Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Ikeda
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - N Hirata
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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23
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Fujii A, Inoue KI, Kinoshita MK, Nagai TN, Sasaki YS, Akazawa YA, Higashi HH, Uetani TU, Aono JA, Nishimura KN, Ikeda SI, Yamaguchi OY. P2450The atrial electromechanical conduction delay with ultrasound based two-dimensional speckle-tracking predicts very late recurrence following catherter ablation for atrial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Introduction
Long-term efficacy following catheter ablation (CA) of atrial fibrillation (AF) remains unknown. Left atrial (LA) reverse remodeling following CA may be important to reduce the risk of very late recurrence (VLR).
Purpose
We hypothesize that improved mechanical conduction delay with myocardial strain is associated with LA reverse remodeling indicates efficacy following AF ablation. This study aimed to investigate the clinical utility of mechanical conduction delay to predict VLR in patients with AF undergoing CA.
Methods
We enrolled 114 consecutive patients undergoing initial CA in patients with AF from January 2012 to February 2014. 20 patients were excluded due to poor echocardiographic image quality. 38 patients had AF recurrence within 12 months after CA. Finally, 54 patients (age 62 years, 13 female, 15 persistent AF) were analyzed. Trans-thoracic echocardiography (TTE) was performed within 24 hours as baseline, and every 6–12 months following the initial CA as follow-up. We compared the TTE data with baseline and latest test when sinus rhythm was maintained. To assess atrial electromechanical conduction delay, we adopted a parameter based on speckle tracking echocardiography (EMT-ε), which was defined as the interval from the P- wave onset to the peak late diastolic longitudinal strain in the basal lateral wall of LA (Figure).
Results
Eleven patients had VLR after CA. In patients with VLR, left atrial volume index (LAVI) at baseline was significantly higher than those without VLR (49±17 vs 35±14 ml/m2, P<0.05). EMT-ε had no significant difference between two groups (225±52 vs 208±49 ms, P=NS).
During 58±22 months, LAVI and EMT-ε were significantly improved (LAVI: 38±16 vs 33±14 ml/m2, EMT-ε: 215±48 vs 197±45 ms, P<0.05, respectively). The change of LAVI had no significant difference between two groups (−2 (−10, 4) vs 33 (−13, 6) ml/m2, P=NS). EMT-ε shortening was significantly greater in AF-free patients than patients with VLR (−27 (−66, −3) vs 23 (−1, 79) ms, P<0.01). At a cut-off value of −9 ms, the change of EMT-ε predicted VLR with sensitivity (100%) and specificity (68.9%).
Conclusion(s)
The atrial electromechanical conduction delay could predict VLR after CA in patients with AF.
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Affiliation(s)
- A Fujii
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - K I Inoue
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - M K Kinoshita
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - T N Nagai
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - Y S Sasaki
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - Y A Akazawa
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - H H Higashi
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - T U Uetani
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - J A Aono
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - K N Nishimura
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - S I Ikeda
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
| | - O Y Yamaguchi
- Ehime University Graduate School of Medicine,Integrated Medicine and Informatics Dept/Cardiology Div, Toon, Japan
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24
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Matsuo H, Fujii A, Choi JC, Fujitani T, Fujita KI. Carboxylative Cyclization of Propargylic Amines with Carbon Dioxide Catalyzed by Poly(amidoamine)-Dendrimer-Encapsulated Gold Nanoparticles. Synlett 2019. [DOI: 10.1055/s-0039-1690162] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We prepared gold nanoparticles encapsulated in poly(amidoamine) (PAMAM) dendrimers as templating agents. The resulting gold nanoparticles were used as catalysts for the carboxylative cyclization of propargylic amines with carbon dioxide to afford the corresponding 1,3-oxazolidin-2-ones in yields of up to 99%.
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Affiliation(s)
| | | | | | | | - Ken-ichi Fujita
- National Institute of Advanced Industrial Science and Technology (AIST)
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25
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Shibayama Y, Nagano M, Hashiguchi K, Fujii A, Iseki K. Supplementation of concentrated Kurozu, a Japanese black vinegar, reduces the onset of hepatic steatosis in mice fed with a high-fat diet. FFHD 2019. [DOI: 10.31989/ffhd.v9i4.596] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Background: Hepatic steatosis is among the most common causes of chronic liver diseases, although established effective treatments are not evident. Previous studies reported that Kurozu improved hypercholesterolemia and carbohydrate metabolism. However, the effect of Kurozu on the incidence of hepatic steatosis is not clear.Objective: The effect of Kurozu on the onset of hepatic steatosis by administering a high-fat diet (HFD) for 110 weeks was evaluated in C57BL/6J mice. Methods: HFD treatment for 110 weeks accelerated the onset of hepatic steatosis more than a standard diet, whereas concentrated Kurozu (CK) supplementation ameliorated the effect of an HFD feeding. The effect of supplementation with resveratrol in an HFD on the onset of hepatic steatosis was also evaluated. To elucidate the mechanism of the effect of Kurozu on the expression of lipid metabolism genes, acute treatment for 10 days with Kurozu was also examined.Results: Supplementation with resveratrol in HFD-fed mice did not ameliorate hepatic steatosis. Body weights were significantly lower in the CK + HFD and Resveratrol + HFD groups than in the control HFD group in middle age. No significant differences in all-cause mortality were observed following supplementation with CK or resveratrol. CK and resveratrol supplements significantly inhibited decreases in dehydroepiandrosterone sulphate serum levels at postnatal week 120. CK and resveratrol supplements did not affect the survival of mice. The ingestion of Kurozu for 10 days significantly elevated the expression levels of Sirt1, Pgc-1α, Lpin1, and Igfbp1 in the liver. Conclusion: These results suggest that ingesting CK may delay the onset of hepatic steatosis HFD feeding causes.Keywords: Kurozu, steatosis, Sirt1, Igfbp1, Lpin1, Pgc-1α, resveratrol
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26
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Baldinger SH, Kumar S, Fujii A, Haeberlin A, Romero J, Epstein LM, Michaud GF, Tedrow UB, John R, Stevenson WG. Substrate mapping for scar-related ventricular tachycardia in patients with resynchronization therapy-the importance of the pacing mode. J Interv Card Electrophysiol 2019; 55:55-62. [PMID: 31020468 DOI: 10.1007/s10840-019-00548-5] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 04/03/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Targets for substrate-based catheter ablation of scar-related ventricular tachycardia (VT) include sites with fractionated and late potentials (LPs). We hypothesized that in patients with cardiac resynchronization therapy (CRT), the pacing mode may influence the timing of abnormal electrograms (EGMs) relative to the surface QRS complex. METHODS We assessed bipolar EGM characteristics in left ventricular low bipolar voltage areas (< 1.5 mV) from 10 patients with coronary disease and a CRT device undergoing catheter ablation for VT. EGMs at 81 sites were analyzed during three different pacing modes (biventricular (BiV), right ventricular (RV)-only, and left ventricular (LV)-only) pacing. RESULTS Stimulus to end of local electrogram duration (Stim-to-eEGM) depended significantly on the stimulation site (BiV, LV, or RV, p = 0.032). Single-chamber pacing unmasked LPs, not present during BiV pacing, in three patients. In another three patients, a concomitant increase in stimulus to end of surface QRS duration caused by single-site pacing compensated for the increase in Stim-to-eEGM duration, thereby prohibiting LP unmasking. CONCLUSION The sequence of ventricular activation, as determined by the pacing site in patients with CRT devices, has a major influence on the detection of late potentials during substrate-guided ablation. Further study is warranted to define the optimal approaches, including the rhythm, for substrate mapping, but our findings suggest that BiV pacing may be most likely to obscure detection of late potentials as compared to single-site pacing.
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Affiliation(s)
- Samuel H Baldinger
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA.,Department of Cardiology, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Saurabh Kumar
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Akira Fujii
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Andreas Haeberlin
- Department of Cardiology, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Jorge Romero
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Laurence M Epstein
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Gregory F Michaud
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA.,Division of Cardiology, Vanderbilt University Medical Center, 2220 Pierce Avenue, Nashville, TN, 37232-6300, USA
| | - Usha B Tedrow
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Roy John
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA.,Division of Cardiology, Vanderbilt University Medical Center, 2220 Pierce Avenue, Nashville, TN, 37232-6300, USA
| | - William G Stevenson
- Cardiac Arrhythmia Center, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA. .,Division of Cardiology, Vanderbilt University Medical Center, 2220 Pierce Avenue, Nashville, TN, 37232-6300, USA.
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27
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Stevenson WG, Tedrow UB, Reddy V, AbdelWahab A, Dukkipati S, John RM, Fujii A, Schaeffer B, Tanigawa S, Elsokkari I, Koruth J, Nakamura T, Naniwadekar A, Ghidoli D, Pellegrini C, Sapp JL. Infusion Needle Radiofrequency Ablation for Treatment of Refractory Ventricular Arrhythmias. J Am Coll Cardiol 2019; 73:1413-1425. [DOI: 10.1016/j.jacc.2018.12.070] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 10/27/2022]
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28
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Watanabe S, Hirabayashi M, Hirata N, Hirata N, Noguchi R, Shimaki Y, Ikeda H, Tatsumi E, Yoshikawa M, Kikuchi S, Yabuta H, Nakamura T, Tachibana S, Ishihara Y, Morota T, Kitazato K, Sakatani N, Matsumoto K, Wada K, Senshu H, Honda C, Michikami T, Takeuchi H, Kouyama T, Honda R, Kameda S, Fuse T, Miyamoto H, Komatsu G, Sugita S, Okada T, Namiki N, Arakawa M, Ishiguro M, Abe M, Gaskell R, Palmer E, Barnouin OS, Michel P, French AS, McMahon JW, Scheeres DJ, Abell PA, Yamamoto Y, Tanaka S, Shirai K, Matsuoka M, Yamada M, Yokota Y, Suzuki H, Yoshioka K, Cho Y, Tanaka S, Nishikawa N, Sugiyama T, Kikuchi H, Hemmi R, Yamaguchi T, Ogawa N, Ono G, Mimasu Y, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Hirose C, Iwata T, Hayakawa M, Hosoda S, Mori O, Sawada H, Shimada T, Soldini S, Yano H, Tsukizaki R, Ozaki M, Iijima Y, Ogawa K, Fujimoto M, Ho TM, Moussi A, Jaumann R, Bibring JP, Krause C, Terui F, Saiki T, Nakazawa S, Tsuda Y. Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu-A spinning top-shaped rubble pile. Science 2019; 364:268-272. [PMID: 30890588 DOI: 10.1126/science.aav8032] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 03/07/2019] [Indexed: 11/02/2022]
Abstract
The Hayabusa2 spacecraft arrived at the near-Earth carbonaceous asteroid 162173 Ryugu in 2018. We present Hayabusa2 observations of Ryugu's shape, mass, and geomorphology. Ryugu has an oblate "spinning top" shape, with a prominent circular equatorial ridge. Its bulk density, 1.19 ± 0.02 grams per cubic centimeter, indicates a high-porosity (>50%) interior. Large surface boulders suggest a rubble-pile structure. Surface slope analysis shows Ryugu's shape may have been produced from having once spun at twice the current rate. Coupled with the observed global material homogeneity, this suggests that Ryugu was reshaped by centrifugally induced deformation during a period of rapid rotation. From these remote-sensing investigations, we identified a suitable sample collection site on the equatorial ridge.
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Affiliation(s)
- S Watanabe
- Nagoya University, Nagoya 464-8601, Japan. .,Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | | | - N Hirata
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Na Hirata
- Kobe University, Kobe 657-8501, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - E Tatsumi
- University of Tokyo, Tokyo 113-0033, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Yabuta
- Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - T Nakamura
- Tohoku University, Sendai 980-8578, Japan
| | - S Tachibana
- University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Ishihara
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Morota
- Nagoya University, Nagoya 464-8601, Japan
| | - K Kitazato
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Matsumoto
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - K Wada
- Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H Senshu
- Chiba Institute of Technology, Narashino 275-0016, Japan
| | - C Honda
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Michikami
- Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - T Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064 Japan
| | - R Honda
- Kochi University, Kochi 780-8520, Japan
| | - S Kameda
- Rikkyo University, Tokyo 171-8501, Japan
| | - T Fuse
- National Institute of Information and Communications Technology, Kashima 314-8501, Japan
| | - H Miyamoto
- University of Tokyo, Tokyo 113-0033, Japan
| | - G Komatsu
- Università d'Annunzio, 65127 Pescara, Italy.,Chiba Institute of Technology, Narashino 275-0016, Japan
| | - S Sugita
- University of Tokyo, Tokyo 113-0033, Japan
| | - T Okada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,University of Tokyo, Tokyo 113-0033, Japan
| | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - M Arakawa
- Kobe University, Kobe 657-8501, Japan
| | - M Ishiguro
- Seoul National University, Seoul 08826, Korea
| | - M Abe
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - R Gaskell
- Planetary Science Institute, Tucson, AZ 85710, USA
| | - E Palmer
- Planetary Science Institute, Tucson, AZ 85710, USA
| | - O S Barnouin
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - P Michel
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre National de la Recherche Scientifique (CNRS), Laboratoire Lagrange, 06304 Nice, France
| | - A S French
- University of Colorado, Boulder, CO 80309, USA
| | - J W McMahon
- University of Colorado, Boulder, CO 80309, USA
| | | | - P A Abell
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - Y Yamamoto
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - K Shirai
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yamada
- Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Kochi University, Kochi 780-8520, Japan
| | - H Suzuki
- Meiji University, Kawasaki 214-8571, Japan
| | - K Yoshioka
- University of Tokyo, Tokyo 113-0033, Japan
| | - Y Cho
- University of Tokyo, Tokyo 113-0033, Japan
| | - S Tanaka
- Kobe University, Kobe 657-8501, Japan
| | | | - T Sugiyama
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - H Kikuchi
- University of Tokyo, Tokyo 113-0033, Japan
| | - R Hemmi
- University of Tokyo, Tokyo 113-0033, Japan
| | - T Yamaguchi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Takahashi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Takei
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - C Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - O Mori
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Sawada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Shimada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Soldini
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Yano
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Ogawa
- Kobe University, Kobe 657-8501, Japan
| | - M Fujimoto
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T-M Ho
- DLR (German Aerospace Center), Institute of Space Systems, 28359 Bremen, Germany
| | - A Moussi
- Centre National d'Etudes Spatiales (CNES), 31401 Toulouse, France
| | - R Jaumann
- DLR, Institute of Planetary Research, 12489 Berlin-Adlershof, Germany
| | - J-P Bibring
- Institute d'Astrophysique Spatiale, 91405 Orsay, France
| | - C Krause
- DLR, Microgravity User Support Center, 51147 Cologne, Germany
| | - F Terui
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Saiki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
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29
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Sugita S, Honda R, Morota T, Kameda S, Sawada H, Tatsumi E, Yamada M, Honda C, Yokota Y, Kouyama T, Sakatani N, Ogawa K, Suzuki H, Okada T, Namiki N, Tanaka S, Iijima Y, Yoshioka K, Hayakawa M, Cho Y, Matsuoka M, Hirata N, Hirata N, Miyamoto H, Domingue D, Hirabayashi M, Nakamura T, Hiroi T, Michikami T, Michel P, Ballouz RL, Barnouin OS, Ernst CM, Schröder SE, Kikuchi H, Hemmi R, Komatsu G, Fukuhara T, Taguchi M, Arai T, Senshu H, Demura H, Ogawa Y, Shimaki Y, Sekiguchi T, Müller TG, Hagermann A, Mizuno T, Noda H, Matsumoto K, Yamada R, Ishihara Y, Ikeda H, Araki H, Yamamoto K, Abe S, Yoshida F, Higuchi A, Sasaki S, Oshigami S, Tsuruta S, Asari K, Tazawa S, Shizugami M, Kimura J, Otsubo T, Yabuta H, Hasegawa S, Ishiguro M, Tachibana S, Palmer E, Gaskell R, Le Corre L, Jaumann R, Otto K, Schmitz N, Abell PA, Barucci MA, Zolensky ME, Vilas F, Thuillet F, Sugimoto C, Takaki N, Suzuki Y, Kamiyoshihara H, Okada M, Nagata K, Fujimoto M, Yoshikawa M, Yamamoto Y, Shirai K, Noguchi R, Ogawa N, Terui F, Kikuchi S, Yamaguchi T, Oki Y, Takao Y, Takeuchi H, Ono G, Mimasu Y, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Hirose C, Nakazawa S, Hosoda S, Mori O, Shimada T, Soldini S, Iwata T, Abe M, Yano H, Tsukizaki R, Ozaki M, Nishiyama K, Saiki T, Watanabe S, Tsuda Y. The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes. Science 2019; 364:252. [PMID: 30890587 DOI: 10.1126/science.aaw0422] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 03/12/2019] [Indexed: 11/02/2022]
Abstract
The near-Earth carbonaceous asteroid 162173 Ryugu is thought to have been produced from a parent body that contained water ice and organic molecules. The Hayabusa2 spacecraft has obtained global multicolor images of Ryugu. Geomorphological features present include a circum-equatorial ridge, east-west dichotomy, high boulder abundances across the entire surface, and impact craters. Age estimates from the craters indicate a resurfacing age of [Formula: see text] years for the top 1-meter layer. Ryugu is among the darkest known bodies in the Solar System. The high abundance and spectral properties of boulders are consistent with moderately dehydrated materials, analogous to thermally metamorphosed meteorites found on Earth. The general uniformity in color across Ryugu's surface supports partial dehydration due to internal heating of the asteroid's parent body.
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Affiliation(s)
- S Sugita
- The University of Tokyo, Tokyo 113-0033, Japan. .,Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - R Honda
- Kochi University, Kochi 780-8520, Japan
| | - T Morota
- Nagoya University, Nagoya 464-8601, Japan
| | - S Kameda
- Rikkyo University, Tokyo 171-8501, Japan
| | - H Sawada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - E Tatsumi
- The University of Tokyo, Tokyo 113-0033, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - C Honda
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Kochi University, Kochi 780-8520, Japan
| | - T Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064 Japan
| | - N Sakatani
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Ogawa
- Kobe University, Kobe 657-8501, Japan
| | - H Suzuki
- Meiji University, Kawasaki 214-8571, Japan
| | - T Okada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,The University of Tokyo, Tokyo 113-0033, Japan
| | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yoshioka
- The University of Tokyo, Tokyo 113-0033, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Cho
- The University of Tokyo, Tokyo 113-0033, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Hirata
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Hirata
- Kobe University, Kobe 657-8501, Japan
| | - H Miyamoto
- The University of Tokyo, Tokyo 113-0033, Japan
| | - D Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | | | - T Nakamura
- Tohoku University, Sendai 980-8578, Japan
| | - T Hiroi
- Brown University, Providence, RI 02912, USA
| | - T Michikami
- Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - P Michel
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre National de le Recherche Scientifique (CNRS), Laboratoire Lagrange, 06304 Nice, France
| | - R-L Ballouz
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,University of Arizona, Tucson, AZ 85705, USA
| | - O S Barnouin
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - C M Ernst
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - S E Schröder
- German Aerospace Center (DLR), Institute of Planetary Research, 12489 Berlin, Germany
| | - H Kikuchi
- The University of Tokyo, Tokyo 113-0033, Japan
| | - R Hemmi
- The University of Tokyo, Tokyo 113-0033, Japan
| | - G Komatsu
- International Research School of Planetary Sciences, Università d'Annunzio, 65127 Pescara, Italy.,Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Fukuhara
- Rikkyo University, Tokyo 171-8501, Japan
| | - M Taguchi
- Rikkyo University, Tokyo 171-8501, Japan
| | - T Arai
- Ashikaga University, Ashikaga 326-8558, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H Demura
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Ogawa
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Sekiguchi
- Hokkaido University of Education, Asahikawa 070-8621, Japan
| | - T G Müller
- Max-Planck-Institut für Extraterrestrische Physik, 85748 Garching, Germany
| | - A Hagermann
- University of Stirling, FK9 4LA, Scotland, UK
| | - T Mizuno
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Matsumoto
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - R Yamada
- University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Ishihara
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - H Araki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Yamamoto
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Abe
- Nihon University, Funabashi 274-8501, Japan
| | - F Yoshida
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - A Higuchi
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Sasaki
- Osaka University, Toyonaka 560-0043, Japan
| | - S Oshigami
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Tsuruta
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Asari
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Tazawa
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - M Shizugami
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - J Kimura
- Osaka University, Toyonaka 560-0043, Japan
| | - T Otsubo
- Hitotsubashi University, Tokyo 186-8601, Japan
| | - H Yabuta
- Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - S Hasegawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ishiguro
- Seoul National University, Seoul 08826, Korea
| | - S Tachibana
- The University of Tokyo, Tokyo 113-0033, Japan
| | - E Palmer
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - R Gaskell
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - L Le Corre
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - R Jaumann
- German Aerospace Center (DLR), Institute of Planetary Research, 12489 Berlin, Germany
| | - K Otto
- German Aerospace Center (DLR), Institute of Planetary Research, 12489 Berlin, Germany
| | - N Schmitz
- German Aerospace Center (DLR), Institute of Planetary Research, 12489 Berlin, Germany
| | - P A Abell
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - M A Barucci
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA)-Observatoire de Paris, Paris Sciences et Lettres (PSL), Centre National de le Recherche Scientifique (CNRS), Sorbonne Université, Université Paris-Diderot, 92195 Meudon Principal Cedex, France
| | - M E Zolensky
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - F Vilas
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - F Thuillet
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre National de le Recherche Scientifique (CNRS), Laboratoire Lagrange, 06304 Nice, France
| | - C Sugimoto
- The University of Tokyo, Tokyo 113-0033, Japan
| | - N Takaki
- The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Suzuki
- The University of Tokyo, Tokyo 113-0033, Japan
| | | | - M Okada
- The University of Tokyo, Tokyo 113-0033, Japan
| | - K Nagata
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064 Japan
| | - M Fujimoto
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - K Shirai
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yamaguchi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Oki
- The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Takao
- The University of Tokyo, Tokyo 113-0033, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Takahashi
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Takei
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - C Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - O Mori
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Shimada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Soldini
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - M Abe
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - H Yano
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
| | - K Nishiyama
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Saiki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Watanabe
- Nagoya University, Nagoya 464-8601, Japan.,Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
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Tarakita N, Yoshida K, Sugawara N, Kubo K, Furukori H, Fujii A, Nakamura K, Yasui-Furukori N. Differences in etiological beliefs about schizophrenia among patients, family, and medical staff. Neuropsychiatr Dis Treat 2019; 15:137-142. [PMID: 30643412 PMCID: PMC6311336 DOI: 10.2147/ndt.s185483] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES To determine whether etiological beliefs are different among schizophrenia patients, their family, and medical staff. PATIENTS AND METHODS A cross-sectional study was performed at five hospitals and one mental clinic and included 212 patients, 144 family members, and 347 medical staff other than psychiatrists. A questionnaire about the possible etiological causes of schizophrenia was used. RESULTS There were significant differences in response scores among the three groups on using Angermeyer's and Goulding's classifications. Factor analyses revealed the following four subscales: Psychosocial, Biological, Environmental, and Cultural connotations. The structure varied among patients, family, and medical staff. CONCLUSION The perspectives of schizophrenia etiology were different among patients, family, and medical staff.
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Affiliation(s)
- Natsumi Tarakita
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan, .,Department of Mental Health, Mutsu City Hospital, Mutsu, Japan
| | - Kazutaka Yoshida
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan,
| | - Norio Sugawara
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Kazutoshi Kubo
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan, .,Department of Neuropsychiatry, Hirosaki-Aiseikai Hospital, Hirosaki, Japan
| | - Hanako Furukori
- Department of Neuropsychiatry, Kuroishi-Akebono Hospital, Kuroishi, Japan
| | - Akira Fujii
- Department of Mental Health, Mutsu City Hospital, Mutsu, Japan
| | - Kazuhiko Nakamura
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan,
| | - Norio Yasui-Furukori
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan,
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31
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Tomita T, Kudo S, Sugawara N, Fujii A, Tsuruga K, Sato Y, Ishioka M, Nakamura K, Yasui-Furukori N. Sex Differences In Psychoeducation For Patients With Depression: A Comparison Of Frequency And Efficacy Of Psychoeducation. Neuropsychiatr Dis Treat 2019; 15:3069-3078. [PMID: 31806976 PMCID: PMC6842745 DOI: 10.2147/ndt.s207544] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 10/08/2019] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND We aimed to reveal sex differences in depression comprehension by reanalyzing data from a previous study of patients who were administered antidepressants. METHODS A total of 424 outpatients were enrolled in the study. Participants were provided an original self-administered questionnaire that comprised eight items: depressive symptoms, course of depression, cause of depression, treatment plan, duration of antidepressant use, how to discontinue antidepressants, side effects of antidepressants, and psychotherapy. Each item consisted of the following two questions: "Have you received an explanation from the doctor in charge?" and "How much do you understand about your treatment?" The level of patients' comprehension of these questions was rated on a scale of 0-10 (11 anchor points). Symptoms were evaluated using the Quick Inventory for Depressive Symptomatology, Japanese version, and other scales. Patients were divided on the basis of sex, regardless of whether they were in remission. RESULTS Compared with male patients, female patients with depression exhibited lower levels of depression and did not receive adequate psychoeducation from their physicians. While depression comprehension of female patients might not necessarily be associated with remission, male patients in remission received more explanations about depression and understood more compared with female patients. CONCLUSION Depression comprehension of male patients might be associated with remission, and psychoeducation should be sex-oriented to improve treatment responses.
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Affiliation(s)
- Tetsu Tomita
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Shuhei Kudo
- Department of Psychiatry, Tsugaru General Hospital, Goshogawara, Japan
| | - Norio Sugawara
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Japan
| | - Akira Fujii
- Department of Mental Health, Mutsu General Hospital, Mutsu, Japan
| | - Koji Tsuruga
- Department of Psychiatry, Aomori Prefectural Tsukushigaoka Hospital, Aomori, Japan
| | - Yasushi Sato
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | | | - Kazuhiko Nakamura
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Norio Yasui-Furukori
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
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Nishiyama Y, Fujii A, Mori H. Selective synthesis of azoxybenzenes from nitrobenzenes by visible light irradiation under continuous flow conditions. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00265k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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]
Abstract
Herein we report a highly selective preparation method of azoxybenzenes from nitrobenzenes by visible-light irradiation using flow microreactors.
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Affiliation(s)
| | - Akira Fujii
- Industrial Technology Center of Wakayama Prefecture
- Wakayama
- Japan
| | - Hajime Mori
- Industrial Technology Center of Wakayama Prefecture
- Wakayama
- Japan
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33
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Kawahata I, Xu H, Takahashi M, Murata K, Han W, Yamaguchi Y, Fujii A, Yamaguchi K, Yamakuni T. Royal jelly coordinately enhances hippocampal neuronal expression of somatostatin and neprilysin genes conferring neuronal protection against toxic soluble amyloid-β oligomers implicated in Alzheimer’s disease pathogenesis. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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34
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Tanaka Y, Izumioka A, Abdul Hamid A, Fujii A, Haruyama T, Furukawa A, Tsukazaki T. 2.8-Å crystal structure of Escherichia coli YidC revealing all core regions, including flexible C2 loop. Biochem Biophys Res Commun 2018; 505:141-145. [PMID: 30241934 DOI: 10.1016/j.bbrc.2018.09.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 09/06/2018] [Accepted: 09/08/2018] [Indexed: 12/22/2022]
Abstract
YidC/Alb3/Oxa1 family proteins are involved in the insertion and assembly of membrane proteins. The core five transmembrane regions of YidC, which are conserved in the protein family, form a positively charged cavity open to the cytoplasmic side. The cavity plays an important role in membrane protein insertion. In all reported structural studies of YidC, the second cytoplasmic loop (C2 loop) was disordered, limiting the understanding of its role. Here, we determined the crystal structure of YidC including the C2 loop at 2.8 Å resolution with R/Rfree = 21.8/27.5. This structure and subsequent molecular dynamics simulation indicated that the intrinsic flexible C2 loop covered the positively charged cavity. This crystal structure provides the coordinates of the complete core region including the C2 loop, which is valuable for further analyses of YidC.
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Affiliation(s)
- Yoshiki Tanaka
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan
| | - Akiya Izumioka
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan
| | - Aisyah Abdul Hamid
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan
| | - Akira Fujii
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan
| | - Takamitsu Haruyama
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan
| | - Arata Furukawa
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan
| | - Tomoya Tsukazaki
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan.
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35
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Kawakami H, Inoue K, Fujii A, Nagai T, Higashi H, Uetani T, Aono J, Nishimura K, Suzuki J, Higaki J, Ikeda S. P5355Evaluation of functional recovery of structural reverse remodeling of the left atrium by pulmonary vein isolation in patients with atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H Kawakami
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - K Inoue
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - A Fujii
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - T Nagai
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - H Higashi
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - T Uetani
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - J Aono
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - K Nishimura
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - J Suzuki
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - J Higaki
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
| | - S Ikeda
- Ehime University, Division of Cardiology, Department of Cardiology, Pulmonology, Hypertension and Nephrology, Toon, Japan
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36
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Fujii A, Matsuo H, Choi JC, Fujitani T, Fujita KI. Efficient synthesis of 2-oxazolidinones and quinazoline-2,4(1H,3H)-diones from CO2 catalyzed by tetrabutylammonium fluoride. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.059] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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37
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Tomita T, Kudo S, Sugawara N, Fujii A, Tsuruga K, Sato Y, Ishioka M, Nakamura K, Yasui-Furukori N. The characteristics of understanding of depression among older patients treated with antidepressants: a comparison between older and younger patients. Neuropsychiatr Dis Treat 2018; 14:1319-1327. [PMID: 29872299 PMCID: PMC5973405 DOI: 10.2147/ndt.s158254] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND To reveal characteristics of understanding of depression among older patients, we reanalyzed the data from a previous study of patients who were administered antidepressants. METHODS A total of 424 outpatients were enrolled in this study. We used an original self-administered questionnaire consisting of eight items: depressive symptoms, the course of depression, the cause of depression, the treatment plan, the duration of antidepressant use, how to discontinue antidepressants, the side effects of antidepressants, and psychotherapy. Each item consisted of the following two questions: "Have you received an explanation from the doctor in charge?" and "How much do you understand about your treatment?". The level of understanding was rated on a scale of 0-10 (11 anchor points). Subjects were divided into two groups: younger patients who were <65 years of age and older patients who were ≥65 years of age. RESULTS Older patients with depression showed lower levels of understanding of depression and did not receive sufficient psychoeducation from their physicians, but their understanding of depression might not be associated with their remission. In the younger group, the scores of understanding of the course of depression, the treatment plan, how to discontinue antidepressants, and psychotherapy items, and the total understanding score of remitters, were significantly higher than those of non-remitters. In contrast, there were no significant differences in the items score or total score between remitters and non-remitters in the older group. CONCLUSION Older patients showed lower levels of understanding of depression and did not appear to receive sufficient psychoeducation, but their understanding of depression might not be associated with their remission.
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Affiliation(s)
- Tetsu Tomita
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Shuhei Kudo
- Department of Psychiatry, Tsugaru General Hospital, Goshogawara, Japan
| | - Norio Sugawara
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Japan
| | - Akira Fujii
- Department of Mental Health, Mutsu General Hospital, Mutsu, Japan
| | - Koji Tsuruga
- Department of Psychiatry, Aomori Prefectural Tsukushigaoka Hospital, Aomori, Japan
| | - Yasushi Sato
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | | | - Kazuhiko Nakamura
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Norio Yasui-Furukori
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
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38
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Romero J, Stevenson WG, Fujii A, Kapur S, Baldinger SH, Mehta NK, John RM, Michaud GF, Epstein LM, Koplan BA, Tedrow UB, Kumar S. Impact of Number of Oral Antiarrhythmic Drug Failures Before Referral on Outcomes Following Catheter Ablation of Ventricular Tachycardia. JACC Clin Electrophysiol 2018; 4:810-819. [PMID: 29929675 DOI: 10.1016/j.jacep.2018.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/22/2018] [Accepted: 01/25/2018] [Indexed: 11/27/2022]
Abstract
OBJECTIVES This study sought to examine the relationship between the number of oral antiarrhythmic drug (AAD) failures before referral for ventricular tachycardia (VT) ablation and subsequent clinical outcomes. BACKGROUND Failure of AADs prompts referral for VT ablation. METHODS Consecutive patients (n = 669) with sustained VT who were referred for a first-time ablation were divided into 2 groups according to the number of oral Class 1 or 3 AAD failures before referral: single-drug failure (≤1 AAD; n = 256) or multidrug failure (>1 AADs; n = 413). Outcomes were stratified according to underlying disease type (no structural heart disease [SHD] [n = 87]; ischemic cardiomyopathy [ICM] [n = 368]; and ischemic cardiomyopathy [NICM] [n = 214]) and reported at a mean follow-up of 35 ± 46 months. RESULTS Patients with multidrug failure, compared with patients with single-drug failure, had more advanced SHD and required more extensive ablation to control arrhythmia. Multidrug failure, compared with single-drug failure, was associated with lower ventricular arrhythmia-free survival in ICM (46 ± 4% vs. 58 ± 6%; p = 0.03) and NICM (26 ± 5% vs. 49 ± 6%; p = 0.008), but not in the absence of SHD (71 ± 8% vs. 85 ± 7%; p = 0.10). Overall survival was lower in multidrug failure versus single-drug failure groups in patients with ICM (71 ± 3% vs. 84 ± 4%; p = 0.03) and NICM (70 ± 5% vs. 88 ± 4%; p < 0.001). Multidrug failure was independently associated with a higher risk of ventricular arrhythmia recurrence (hazard ratio: 1.6; p = 0.01) and mortality in NICM (hazard ratio: 2.6; p = 0.008), but not in ICM. CONCLUSIONS Patients with SHD and failure of multiple oral AADs before VT ablation referral have more advanced heart disease and worse clinical outcomes following ablation, especially in NICM.
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Affiliation(s)
- Jorge Romero
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts; Department of Medicine (Cardiology), Montefiore-Einstein Center for Heart and Vascular Care, New York, New York
| | - William G Stevenson
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts; Arrhythmia and Electrophysiology Program, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Akira Fujii
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Sunil Kapur
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Samuel H Baldinger
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts; Department of Cardiology, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Nishaki K Mehta
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Roy M John
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts; Arrhythmia and Electrophysiology Program, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Gregory F Michaud
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts; Arrhythmia and Electrophysiology Program, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Laurence M Epstein
- Zucker School of Medicine, Hofstra/Northwell, Northwell Health, Manhassett, New York
| | - Bruce A Koplan
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Usha B Tedrow
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Saurabh Kumar
- Cardiovascular Division, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts; Department of Cardiology, Westmead Hospital, Sydney, Australia.
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Ohkura N, Ohnishi K, Taniguchi M, Nakayama A, Usuba Y, Fujita M, Fujii A, Ishibashi K, Baba K, Atsumi G. Anti-platelet effects of chalcones from Angelica keiskei Koidzumi (Ashitaba) in vivo. Pharmazie 2018; 71:651-654. [PMID: 29441970 DOI: 10.1691/ph.2016.6678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Angelica keiskei Koidzumi (Ashitaba) is a traditional folk medicine that is also regarded in Japan as a health food with potential antithrombotic properties. The ability of the major chalcones, xanthoangelol (XA) and 4-hydroxyderricin (4-HD) extracted from Ashitaba roots to inhibit platelet aggregation activity in vitro was recently determined. However, the anti-platelet activities of Ashitaba chalcones in vivo have remained unclear. The present study examines the anti-platelet effects of Ashitaba exudate and its constituent chalcones using mouse tail-bleeding models that reflect platelet aggregation in vivo. Ashitaba exudate and the major chalcone subtype XA, suppressed the lipopolysaccharide (LPS)-induced shortening of mouse tail bleeding. However, trace amounts of other Ashitaba chalcone subtypes including xanthoangelols B (XB), D (XD), E (XE) and F (XF) did not affect tail bleeding. These results suggest that the major chalcone subtype in Ashitaba, XA, has anti-platelet-activities in vivo.
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40
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Awane S, Nishi K, Ishida M, Nagano M, Hashiguchi K, Fujii A, Sugahara T. Inhibitory effect of Japanese black vinegar on IgE-mediated degranulation of RBL-2H3 cells and a murine model of Japanese cedar pollinosis. Cytotechnology 2018; 70:961-974. [PMID: 29500751 DOI: 10.1007/s10616-018-0208-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 02/16/2018] [Indexed: 11/29/2022] Open
Abstract
Japanese black vinegar (JBV) is a traditional vinegar manufactured with steamed unpolished rice. After screening, beneficial effects of JBV on IgE-mediated allergic responses were found. In this study, acetic acid-free JBV was used to evaluate its antiallergic effects. JBV suppressed degranulation of rat basophilic leukemia RBL-2H3 cells in a dose-dependent manner without cytotoxicity. The inhibitory effect of JBV on the degranulation seemed to be caused by the bioactive ingredients other than proteins, because the activity was not affected by heat treatment or protease digestion. JBV inhibited the elevation in the intracellular Ca2+ concentration induced by antigen. Immunoblot analysis revealed that JBV suppresses degranulation of RBL-2H3 cells by downregulated phosphorylation of PI3K, Akt, and PLCγ1. In addition, oral administration of JBV significantly suppressed passive cutaneous anaphylaxis reaction in mice and an allergic symptom in Cry j1-induced pollinosis model mice. Thus, JBV has a potential as a health-promoting food with the antiallergy effect.
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Affiliation(s)
- Seiji Awane
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime, 790-8566, Japan
| | - Kosuke Nishi
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime, 790-8566, Japan.,Food and Health Sciences Research Center, Ehime University, Matsuyama, Ehime, 790-8566, Japan
| | - Momoko Ishida
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime, 790-8566, Japan
| | - Masanobu Nagano
- Sakamoto Kurozu Inc, 21-15 Uenosono-cho, Kagoshima, 890-0052, Japan
| | | | - Akira Fujii
- Sakamoto Kurozu Inc, 21-15 Uenosono-cho, Kagoshima, 890-0052, Japan
| | - Takuya Sugahara
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime, 790-8566, Japan. .,Food and Health Sciences Research Center, Ehime University, Matsuyama, Ehime, 790-8566, Japan.
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41
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Seike F, Uetani T, Nishimura K, Kawakami H, Higashi H, Fujii A, Aono J, Nagai T, Inoue K, Suzuki J, Inaba S, Okura T, Yasuda K, Higaki J, Ikeda S. Intravascular Ultrasound-Derived Virtual Fractional Flow Reserve for the Assessment of Myocardial Ischemia. Circ J 2018; 82:815-823. [DOI: 10.1253/circj.cj-17-1042] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fumiyasu Seike
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Teruyoshi Uetani
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Kazuhisa Nishimura
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Hiroshi Kawakami
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Haruhiko Higashi
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Akira Fujii
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Jun Aono
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Takayuki Nagai
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Katsuji Inoue
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Jun Suzuki
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | | | - Takafumi Okura
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Kazunori Yasuda
- Department of Mechanical Engineering, Ehime University Graduate School of Science and Engineering
| | - Jitsuo Higaki
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
| | - Shuntaro Ikeda
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine
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Tomita T, Kudo S, Sugawara N, Fujii A, Tsuruga K, Sato Y, Ishioka M, Nakamura K, Yasui-Furukori N. Timing of psychoeducation for patients with depression who were treated with antidepressants: when should patients receive psychoeducation. Neuropsychiatr Dis Treat 2018; 14:505-510. [PMID: 29483775 PMCID: PMC5813768 DOI: 10.2147/ndt.s156797] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND We analyzed data on the understanding of depression among patients who were prescribed antidepressants to determine when psychoeducation should be provided. PATIENTS AND METHODS A total of 424 outpatients were enrolled in this study. We used an original self-administered questionnaire consisting of eight categories: (A) depressive symptoms, (B) the course of depression, (C) causes of depression, (D) the treatment plan, (E) the duration of antidepressant use, (F) discontinuation of antidepressants, (G) the side effects of antidepressants, and (H) psychotherapy. Each category was assessed with the following two questions: "Have you received an explanation of this topic from the doctor in charge?" and "How much do you understand about your treatment?" The level of understanding of patients was rated on a scale from 0 to 10 (no understanding to full understanding; 11 anchor points). Symptoms were evaluated using the Quick Inventory for Depressive Symptomatology, Japanese version (QIDS-J) and other scales. Participants were divided into two groups: patients receiving psychoeducation at their first visit vs patients receiving psychoeducation after their first visit. RESULTS Of the patients who had received an explanation of each psychoeducation item, a greater proportion were in the first visit group than in the after first visit group for nearly all items. Compared with the after first visit group, the first visit group showed a better understanding of each psychoeducation item and significantly lower QIDS scores for those receiving explanations of Items A and C. There was no significant difference between the two groups in remittance rates. CONCLUSION Psychoeducation on depression, especially regarding the symptoms and causes of depression, should be provided at patients' first visit.
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Affiliation(s)
- Tetsu Tomita
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki
| | - Shuhei Kudo
- Department of Psychiatry, Tsugaru General Hospital, Goshogawara
| | - Norio Sugawara
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira
| | - Akira Fujii
- Department of Mental Health, Mutsu General Hospital, Mutsu
| | - Koji Tsuruga
- Department of Psychiatry, Aomori Prefectural Tsukushigaoka Hospital, Aomori
| | - Yasushi Sato
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki
| | | | - Kazuhiko Nakamura
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki
| | - Norio Yasui-Furukori
- Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki
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Fujii A, Nagashima K, Kumar S, Tanigawa S, Baldinger SH, Michaud GF, John RM, Koplan BA, Tokuda M, Inada K, Tedrow UB, Stevenson WG. Significance of Inducible Nonsustained Ventricular Tachycardias After Catheter Ablation for Ventricular Tachycardia in Ischemic Cardiomyopathy. Circ Arrhythm Electrophysiol 2017; 10:CIRCEP.117.005005. [PMID: 29237608 DOI: 10.1161/circep.117.005005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 01/03/2017] [Accepted: 11/20/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Noninducibility of sustained monomorphic ventricular tachycardia (SMVT) postablation does not insure absence of later recurrence in patients with ischemic cardiomyopathy. This study aims to determine the relation between inducible nonsustained VT postablation and VT recurrences. METHODS AND RESULTS One hundred sixty-five consecutive patients (156 male; age 68±9 years) underwent ablation for SMVT because of ischemic cardiomyopathy; 44 patients who did not have induction testing or in whom only ventricular fibrillation was induced after ablation were excluded. In 38 patients (23%), SMVT was inducible (group C). Of the 83 patients without inducible SMVT after ablation, nonsustained VT defined as ≥5 beats lasting for <30 s, was induced in 34 patients (group B, 21%), whereas the remaining 49 patients had no VT induced by the induction test (group A, 30%). Over a median follow-up of 18.7 months, freedom from recurrent VT at 24 months was 60% in group A, 45% in group B (P=0.017 versus group A), and 38% in group C (P=0.005 versus group A). In patients without inducible SMVT, inducible nonsustained VT and left ventricular ejection fraction was independently associated with VT recurrence (hazard ratio, 3.66 and 1.07; 95% CI, 1.3-11.1 and 1.01-1.14). CONCLUSIONS Inducible nonsustained VT postablation suggests the continued presence of functional arrhythmia substrate. Further trials are needed to assess whether additional ablation would improve outcome in this group.
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Affiliation(s)
- Akira Fujii
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.).
| | - Koichi Nagashima
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Saurabh Kumar
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Shinichi Tanigawa
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Samuel H Baldinger
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Gregory F Michaud
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Roy M John
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Bruce A Koplan
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Michifumi Tokuda
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Keiichi Inada
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - Usha B Tedrow
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.)
| | - William G Stevenson
- From the Arrhythmia Unit, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (A.F., S.K., S.T., S.H.B., G.F.M., R.M.J., B.A.K., M.T., K.I., U.B.T., W.G.S.); and Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan (K.N.).
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Kumar S, Baldinger SH, Kapur S, Romero J, Mehta NK, Mahida S, Fujii A, Tedrow UB, Stevenson WG. Right ventricular scar-related ventricular tachycardia in nonischemic cardiomyopathy: Electrophysiological characteristics, mapping, and ablation of underlying heart disease. J Cardiovasc Electrophysiol 2017; 29:79-89. [DOI: 10.1111/jce.13346] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 08/25/2017] [Accepted: 09/18/2017] [Indexed: 01/15/2023]
Affiliation(s)
- Saurabh Kumar
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
- Department of Cardiology, Westmead Hospital; University of Sydney; New South Wales Australia
| | - Samuel H. Baldinger
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
- Bern University Hospital and University of Bern; Bern Switzerland
| | - Sunil Kapur
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
| | - Jorge Romero
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
- Montefiore Medical Center, Albert Einstein College of Medicine; Montefiore-Einstein Center for Heart & Vascular Care; Bronx NY USA
| | - Nishaki K. Mehta
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
| | - Saagar Mahida
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
- Liverpool Heart and Chest Hospital; Liverpool UK
| | - Akira Fujii
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
| | - Usha B. Tedrow
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
| | - William G. Stevenson
- Arrhythmia Service, Cardiovascular Division; Brigham and Women's Hospital; Boston MA USA
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Ota K, Harada T, Otsubo K, Fujii A, Tsuchiya Y, Tanaka K, Okamoto I, Nakanishi Y. A new tool to visualize and quantificate activated epidermal growth factor receptor homodimerization with proximity lagation assay in lung cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx672.005] [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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Takezawa H, Katsumori T, Tamura A, Fujii A, Goto Y, Yokoya S, Oka H, Hashimoto Y, Hino A. Two neuro-interventionists treated twice or more patients than one neuro-interventionist did. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3118] [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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Siontis KC, Kim HM, Stevenson WG, Fujii A, Bella PD, Vergara P, Shivkumar K, Tung R, Do DH, Daoud EG, Okabe T, Zeppenfeld K, Riva Silva MD, Hindricks G, Arya A, Weber A, Kuck KH, Metzner A, Mathew S, Riedl J, Yokokawa M, Jongnarangsin K, Latchamsetty R, Morady F, Bogun FM. Prognostic Impact of the Timing of Recurrence of Infarct-Related Ventricular Tachycardia After Catheter Ablation. Circ Arrhythm Electrophysiol 2017; 9:CIRCEP.116.004432. [PMID: 27923805 DOI: 10.1161/circep.116.004432] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 06/19/2016] [Accepted: 10/26/2016] [Indexed: 01/18/2023]
Abstract
BACKGROUND Recurrence of ventricular tachycardia (VT) after ablation in patients with previous myocardial infarction is associated with adverse prognosis. However, the impact of the timing of VT recurrence on outcomes is unclear. METHODS AND RESULTS We analyzed data from a multicenter collaborative database of patients who underwent catheter ablation for infarct-related VT. Multivariable Cox regression analyses investigated the effect of the timing of VT recurrence on the composite outcome of death or heart transplantation using VT recurrence as a time-varying covariate. A total of 1412 patients were included (92% men; age: 66.7±10.7 years), and 605 patients (42.8%) had a recurrence after median 116 days (188 [31.1%] within 1 month, 239 [39.5%] between 1 and 12 months, and 178 [29.4%] after 12 months). At median follow-up of 670 days, 375 patients (26.6%) experienced death or heart transplantation. The median time from recurrence to death or heart transplantation was 65 and 198.5 days in patients with recurrence ≤30 days and >30 days post ablation, respectively. The adjusted hazard ratio (95% confidence interval) for the effect of VT recurrence occurring immediately post ablation on death or heart transplantation was 3.45 (2.33-5.11) in reference to no recurrence. However, the magnitude of this effect decreased statistically significantly (P<0.001) as recurrence occurred later in the follow-up period. The respective risk estimates for VT recurrence at 30 days, 6 months, 1 year, and 2 years were 3.36 (2.29-4.93), 2.94 (2.09-4.14), 2.50 (1.85-3.37), and 1.81 (1.37-2.40). CONCLUSIONS VT recurrence post ablation is associated with a mortality risk that is highest soon after the ablation and decreases gradually thereafter.
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Affiliation(s)
- Konstantinos C Siontis
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Hyungjin Myra Kim
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - William G Stevenson
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Akira Fujii
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Paolo Della Bella
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Pasquale Vergara
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Kalyanam Shivkumar
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Roderick Tung
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Duc H Do
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Emile G Daoud
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Toshimasa Okabe
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Katja Zeppenfeld
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Marta de Riva Silva
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Gerhard Hindricks
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Arash Arya
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Alexander Weber
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Karl-Heinz Kuck
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Andreas Metzner
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Shibu Mathew
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Johannes Riedl
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Miki Yokokawa
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Krit Jongnarangsin
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Rakesh Latchamsetty
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Fred Morady
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.)
| | - Frank M Bogun
- From the Division of Cardiovascular Medicine, University of Michigan, Ann Arbor (K.C.S., H.M.K., M.Y., K.J., R.L., F.M., F.M.B.); Arrhythmia Service, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S., A.F.); Arrhythmia Unit, San Raffaele University Hospital, Milan, Italy (P.D.B., P.V.); Cardiac Arrhythmia Center, University of California, Los Angeles (K.S., D.H.D.); Center for Heart Rhythm, University of Chicago, IL (R.T.); Electrophysiology Section, Division of Cardiology, Ohio State University, Columbus (E.G.D., T.O.); Department of Cardiology, Leiden University Medical Center, The Netherlands (K.Z., M.d.R.S.); Division of Cardiology, University Hospital, Leipzig, Germany (G.H., A.A., A.W.); and Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany (K.-H.K., A.M., S.M., J.R.).
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Fujii A, Choi JC, Fujita KI. Synthesis of magnetically recoverable imidazolium hydrogen carbonate and its application as an N-heterocyclic carbene catalyst to cyanosilylation of aldehydes and ketones. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sugawara N, Danjo K, Furukori H, Sato Y, Tomita T, Fujii A, Nakagami T, Kitaoka K, Yasui-Furukori N. Work-family conflict as a mediator between occupational stress and psychological health among mental health nurses in Japan. Neuropsychiatr Dis Treat 2017; 13:779-784. [PMID: 28331330 PMCID: PMC5356920 DOI: 10.2147/ndt.s127053] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Occupational stress among mental health nurses may affect their psychological health, resulting in reduced performance. To provide high-quality, sustainable nursing care, it is necessary to identify and control the factors associated with psychological health among mental health nurses. The purpose of this study was to examine the role of work-family conflict (WFC) in the well-known relationship between occupational stress and psychological health among mental health nurses in Japan. METHODS In this cross-sectional study, data were gathered from 180 mental health nurses who had a coresident child or were married. Data from the Work-Family Conflict Scale, the Generic Job Stress Questionnaire, the Maslach Burnout Inventory-General Survey, and the Center for Epidemiologic Studies for Depression Scale were obtained via self-report questionnaires. The effects of occupational stress and WFC on psychological health were explored by hierarchical linear regression analysis. RESULTS The relationship between emotional exhaustion and occupational factors, including quantitative workload and the variance in workload, disappeared with the addition of WFC (each work interference with family [WIF] or family interference with work [FIW]). The relationship between emotional exhaustion and mental demands disappeared only with the addition of WIF. The relationship between depressive symptoms and variance in workload disappeared with the addition of WFC (each WIF or FIW). CONCLUSION Our findings may encourage hospital administrators to consider the risks of medical staff WFC. Furthermore, longitudinal investigations into the factors associated with WFC are required for administrative and psychological interventions.
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Affiliation(s)
- Norio Sugawara
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo; Department of Neuropsychiatry, Hirosaki University School of Medicine, Hirosaki, Aomori
| | | | - Hanako Furukori
- Department of Psychiatry, Kuroishi-Akebono Hospital, Kuroishi
| | - Yasushi Sato
- Department of Neuropsychiatry, Hirosaki University School of Medicine, Hirosaki, Aomori; Department of Psychiatry, Mutsu General Hospital, Mutsu
| | - Tetsu Tomita
- Department of Neuropsychiatry, Hirosaki University School of Medicine, Hirosaki, Aomori; Department of Psychiatry, Hirosaki-Aiseikai Hospital, Kitazono, Hirosaki
| | - Akira Fujii
- Department of Psychiatry, Seihoku-Chuoh Hospital, Goshogawara, Aomori
| | - Taku Nakagami
- Department of Neuropsychiatry, Hirosaki University School of Medicine, Hirosaki, Aomori; Department of Psychiatry, Odate Municipal General Hospital, Odate, Akita
| | - Kazuyo Kitaoka
- Mental Health Nursing, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Norio Yasui-Furukori
- Department of Neuropsychiatry, Hirosaki University School of Medicine, Hirosaki, Aomori
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