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Onaka T, Ohshima K, Kinoshita I, Miyakawa N, Shirae A, Kato-Ogura A, Otsuka Y, Iwai F, Yonezawa A. Post-transplant lymphoproliferative disease of two different histological types. Ann Hematol 2024:10.1007/s00277-024-05722-y. [PMID: 38609728 DOI: 10.1007/s00277-024-05722-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024]
Affiliation(s)
- Takashi Onaka
- Department of Hematology, Kokura Memorial Hospital, 3-2-1, Asano, Kokura-kita, Fukuoka, Kitakyushu, Japan.
| | - Koichi Ohshima
- Department of Pathology, Kurume University School of Medicine, Fukuoka, Japan
| | - Izumi Kinoshita
- Department of Pathology, Kokura Memorial Hospital, Fukuoka, Japan
| | - Naoto Miyakawa
- Department of Hematology, Kokura Memorial Hospital, 3-2-1, Asano, Kokura-kita, Fukuoka, Kitakyushu, Japan
| | - Atsuto Shirae
- Department of Hematology, Kokura Memorial Hospital, 3-2-1, Asano, Kokura-kita, Fukuoka, Kitakyushu, Japan
| | - Aiko Kato-Ogura
- Department of Hematology, Kokura Memorial Hospital, 3-2-1, Asano, Kokura-kita, Fukuoka, Kitakyushu, Japan
| | - Yasuyuki Otsuka
- Department of Hematology, Kokura Memorial Hospital, 3-2-1, Asano, Kokura-kita, Fukuoka, Kitakyushu, Japan
| | - Fumie Iwai
- Department of Hematology, Kokura Memorial Hospital, 3-2-1, Asano, Kokura-kita, Fukuoka, Kitakyushu, Japan
| | - Akihito Yonezawa
- Department of Hematology, Kokura Memorial Hospital, 3-2-1, Asano, Kokura-kita, Fukuoka, Kitakyushu, Japan
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Berné O, Habart E, Peeters E, Schroetter I, Canin A, Sidhu A, Chown R, Bron E, Haworth TJ, Klaassen P, Trahin B, Van De Putte D, Alarcón F, Zannese M, Abergel A, Bergin EA, Bernard-Salas J, Boersma C, Cami J, Cuadrado S, Dartois E, Dicken D, Elyajouri M, Fuente A, Goicoechea JR, Gordon KD, Issa L, Joblin C, Kannavou O, Khan B, Lacinbala O, Languignon D, Le Gal R, Maragkoudakis A, Meshaka R, Okada Y, Onaka T, Pasquini S, Pound MW, Robberto M, Röllig M, Schefter B, Schirmer T, Simmer T, Tabone B, Tielens AGGM, Vicente S, Wolfire MG, Aleman I, Allamandola L, Auchettl R, Baratta GA, Baruteau C, Bejaoui S, Bera PP, Black JH, Boulanger F, Bouwman J, Brandl B, Brechignac P, Brünken S, Buragohain M, Burkhardt A, Candian A, Cazaux S, Cernicharo J, Chabot M, Chakraborty S, Champion J, Colgan SWJ, Cooke IR, Coutens A, Cox NLJ, Demyk K, Meyer JD, Engrand C, Foschino S, García-Lario P, Gavilan L, Gerin M, Godard M, Gottlieb CA, Guillard P, Gusdorf A, Hartigan P, He J, Herbst E, Hornekaer L, Jäger C, Janot-Pacheco E, Kaufman M, Kemper F, Kendrew S, Kirsanova MS, Knight C, Kwok S, Labiano Á, Lai TSY, Lee TJ, Lefloch B, Le Petit F, Li A, Linz H, Mackie CJ, Madden SC, Mascetti J, McGuire BA, Merino P, Micelotta ER, Morse JA, Mulas G, Neelamkodan N, Ohsawa R, Paladini R, Palumbo ME, Pathak A, Pendleton YJ, Petrignani A, Pino T, Puga E, Rangwala N, Rapacioli M, Ricca A, Roman-Duval J, Roueff E, Rouillé G, Salama F, Sales DA, Sandstrom K, Sarre P, Sciamma-O'Brien E, Sellgren K, Shannon MJ, Simonnin A, Shenoy SS, Teyssier D, Thomas RD, Togi A, Verstraete L, Witt AN, Wootten A, Ysard N, Zettergren H, Zhang Y, Zhang ZE, Zhen J. A far-ultraviolet-driven photoevaporation flow observed in a protoplanetary disk. Science 2024; 383:988-992. [PMID: 38422128 DOI: 10.1126/science.adh2861] [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] [Received: 02/24/2023] [Accepted: 01/12/2024] [Indexed: 03/02/2024]
Abstract
Most low-mass stars form in stellar clusters that also contain massive stars, which are sources of far-ultraviolet (FUV) radiation. Theoretical models predict that this FUV radiation produces photodissociation regions (PDRs) on the surfaces of protoplanetary disks around low-mass stars, which affects planet formation within the disks. We report James Webb Space Telescope and Atacama Large Millimeter Array observations of a FUV-irradiated protoplanetary disk in the Orion Nebula. Emission lines are detected from the PDR; modeling their kinematics and excitation allowed us to constrain the physical conditions within the gas. We quantified the mass-loss rate induced by the FUV irradiation and found that it is sufficient to remove gas from the disk in less than a million years. This is rapid enough to affect giant planet formation in the disk.
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Affiliation(s)
- Olivier Berné
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | - Emilie Habart
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Els Peeters
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
- Institute for Earth and Space Exploration, The University of Western Ontario, London, ON N6A 3K7, Canada
- Carl Sagan Center, Search for ExtraTerrestrial Intelligence Institute, Mountain View, CA 94043, USA
| | - Ilane Schroetter
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | - Amélie Canin
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | - Ameek Sidhu
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
- Institute for Earth and Space Exploration, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Ryan Chown
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
- Institute for Earth and Space Exploration, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Emeric Bron
- Laboratoire d'Etudes du Rayonnement et de la Matière, Observatoire de Paris, Université Paris Science et Lettres, CNRS, Sorbonne Universités, F-92190 Meudon, France
| | - Thomas J Haworth
- School of Physics and Astronomy, Queen Mary University of London, London E1 4NS, UK
| | - Pamela Klaassen
- UK Astronomy Technology Centre, Royal Observatory Edinburgh, Blackford Hill EH9 3HJ, UK
| | - Boris Trahin
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | | | - Felipe Alarcón
- Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Marion Zannese
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Alain Abergel
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Edwin A Bergin
- Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jeronimo Bernard-Salas
- ACRI-ST, Centre d'Etudes et de Recherche de Grasse, F-06130 Grasse, France
- Innovative Common Laboratory for Space Spectroscopy, 06130 Grasse, France
| | | | - Jan Cami
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
- Institute for Earth and Space Exploration, The University of Western Ontario, London, ON N6A 3K7, Canada
- Carl Sagan Center, Search for ExtraTerrestrial Intelligence Institute, Mountain View, CA 94043, USA
| | - Sara Cuadrado
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain
| | - Emmanuel Dartois
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Daniel Dicken
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Meriem Elyajouri
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Asunción Fuente
- Centro de Astrobiología, Consejo Superior de Investigaciones Científicas, and Instituto Nacional de Técnica Aeroespacial, 28850 Torrejón de Ardoz, Spain
| | - Javier R Goicoechea
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain
| | - Karl D Gordon
- Space Telescope Science Institute, Baltimore, MD 21218, USA
- Johns Hopkins University, Baltimore, MD 21218, USA
| | - Lina Issa
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | - Christine Joblin
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | - Olga Kannavou
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Baria Khan
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Ozan Lacinbala
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - David Languignon
- Laboratoire d'Etudes du Rayonnement et de la Matière, Observatoire de Paris, Université Paris Science et Lettres, CNRS, Sorbonne Universités, F-92190 Meudon, France
| | - Romane Le Gal
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
- Institut de Planétologie et d'Astrophysique de Grenoble, Université Grenoble Alpes, CNRS, F-38000 Grenoble, France
- Institut de Radioastronomie Millimétrique, F-38406 Saint-Martin d'Hères, France
| | | | - Raphael Meshaka
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Yoko Okada
- I. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany
| | - Takashi Onaka
- Department of Astronomy, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Physics, Faculty of Science and Engineering, Meisei University, Hino, Tokyo 191-8506, Japan
| | - Sofia Pasquini
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Marc W Pound
- Astronomy Department, University of Maryland, College Park, MD 20742, USA
| | - Massimo Robberto
- Space Telescope Science Institute, Baltimore, MD 21218, USA
- Johns Hopkins University, Baltimore, MD 21218, USA
| | - Markus Röllig
- I. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany
| | - Bethany Schefter
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Thiébaut Schirmer
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden
| | - Thomas Simmer
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Benoit Tabone
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Alexander G G M Tielens
- Astronomy Department, University of Maryland, College Park, MD 20742, USA
- Leiden Observatory, Leiden University, 2300 RA Leiden, Netherlands
| | - Sílvia Vicente
- Instituto de Astrofísica e Ciências do Espaço, P-1349-018 Lisboa, Portugal
| | - Mark G Wolfire
- Astronomy Department, University of Maryland, College Park, MD 20742, USA
| | - Isabel Aleman
- Instituto de Física e Química, Universidade Federal de Itajubá, Itajubá, Brazil
| | - Louis Allamandola
- Astronomy Department, University of Maryland, College Park, MD 20742, USA
- Bay Area Environmental Research Institute, Moffett Field, CA 94035, USA
| | - Rebecca Auchettl
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation, Victoria, Australia
| | | | - Clément Baruteau
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | - Salma Bejaoui
- Astronomy Department, University of Maryland, College Park, MD 20742, USA
| | - Partha P Bera
- Astronomy Department, University of Maryland, College Park, MD 20742, USA
- Bay Area Environmental Research Institute, Moffett Field, CA 94035, USA
| | - John H Black
- Department of Space, Earth, and Environment, Chalmers University of Technology, Onsala Space Observatory, 43992 Onsala, Sweden
| | - Francois Boulanger
- Laboratoire de Physique de l'École Normale Supérieure, Université Paris Science et Lettres, CNRS, Sorbonne Université, Université de Paris, 75005, Paris, France
| | - Jordy Bouwman
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303, USA
- Department of Chemistry, University of Colorado, Boulder, CO 80309, USA
- Institute for Modeling Plasma, Atmospheres, and Cosmic Dust, University of Colorado, Boulder, CO 80303, USA
| | - Bernhard Brandl
- I. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany
- Faculty of Aerospace Engineering, Delft University of Technology, 2629 HS Delft, Netherlands
| | | | - Sandra Brünken
- Institute for Molecules and Materials, Free-Electron Lasers for Infrared eXperiments Laboratory, Radboud University, 6525 ED Nijmegen, Netherlands
| | | | - Andrew Burkhardt
- Department of Physics, Wellesley College, Wellesley, MA 02481, USA
| | - Alessandra Candian
- I. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1098 XH Amsterdam, Netherlands
| | - Stéphanie Cazaux
- Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jose Cernicharo
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain
| | - Marin Chabot
- Laboratoire de Physique des deux infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS, 91405 Orsay Cedex, France
| | - Shubhadip Chakraborty
- Institut de Physique de Rennes, CNRS, Université de Rennes 1, 35042 Rennes, France
- Department of Chemistry, Gandhi Institute of Technology and Management, Bangalore, India
| | - Jason Champion
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | - Sean W J Colgan
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden
| | - Ilsa R Cooke
- Department of Chemistry, The University of British Columbia, Vancouver, BC, Canada
| | - Audrey Coutens
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | - Nick L J Cox
- ACRI-ST, Centre d'Etudes et de Recherche de Grasse, F-06130 Grasse, France
- Innovative Common Laboratory for Space Spectroscopy, 06130 Grasse, France
| | - Karine Demyk
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | | | - Cécile Engrand
- Laboratoire de Physique des deux infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS, 91405 Orsay Cedex, France
| | - Sacha Foschino
- Institute for Earth and Space Exploration, The University of Western Ontario, London, ON N6A 3K7, Canada
| | | | - Lisseth Gavilan
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden
| | - Maryvonne Gerin
- Laboratoire d'Etudes du Rayonnement et de la Matière, Observatoire de Paris, Paris Science et Lettres University, Sorbonne Université, 75014, Paris, France
| | - Marie Godard
- ACRI-ST, Centre d'Etudes et de Recherche de Grasse, F-06130 Grasse, France
| | - Carl A Gottlieb
- Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
| | - Pierre Guillard
- Institut d'Astrophysique de Paris, Sorbonne Université, CNRS, 75014 Paris, France
- Institut Universitaire de France, Ministère de l'Enseignement Supérieur et de la Recherche, 75231 Paris, France
| | - Antoine Gusdorf
- Laboratoire de Physique de l'École Normale Supérieure, Université Paris Science et Lettres, CNRS, Sorbonne Université, Université de Paris, 75005, Paris, France
- Laboratoire d'Etudes du Rayonnement et de la Matière, Observatoire de Paris, Paris Science et Lettres University, Sorbonne Université, 75014, Paris, France
| | - Patrick Hartigan
- Department of Physics and Astronomy, Rice University, Houston, TX 77005, USA
| | - Jinhua He
- Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
- Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, Beijing 100101, China
- Departamento de Astronomía, Universidad de Chile, Santiago, Chile
| | - Eric Herbst
- Departments of Chemistry and Astronomy, University of Virginia, Charlottesville, VA 22904, USA
| | - Liv Hornekaer
- Center for Interstellar Catalysis, Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark
| | - Cornelia Jäger
- Institute of Solid State Physics, Max Planck Institute for Astronomy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Eduardo Janot-Pacheco
- Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, 05509-090 São Paulo, Brazil
| | - Michael Kaufman
- Department of Physics and Astronomy, San José State University, San Jose, CA 95192, USA
| | - Francisca Kemper
- Institut de Ciencies de l'Espai, Centro Superior de Investigacion Cientifica, E-08193, Barcelona, Spain
- Institución Catalana de Investigación y Estudios Avanzados, E-08010 Barcelona, Spain
- Institut d'Estudis Espacials de Catalunya, E-08034 Barcelona, Spain
| | - Sarah Kendrew
- European Space Agency, Space Telescope Science Institute, Baltimore, MD 21218, USA
| | - Maria S Kirsanova
- Institute of Astronomy, Russian Academy of Sciences, 119017 Moscow, Russia
| | - Collin Knight
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Sun Kwok
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, BC V6T 1Z4, Canada
| | - Álvaro Labiano
- Telespazio UK, European Space Agency, E-28692 Villanueva de la Cañada, Madrid, Spain
| | - Thomas S-Y Lai
- Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USA
| | - Timothy J Lee
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden
| | - Bertrand Lefloch
- Leiden Observatory, Leiden University, 2300 RA Leiden, Netherlands
| | | | - Aigen Li
- Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA
| | - Hendrik Linz
- Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany
| | - Cameron J Mackie
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Pitzer Center for Theoretical Chemistry, College of Chemistry, University of California, Berkeley, CA, USA
| | - Suzanne C Madden
- Astrophysics, Instrumentation and Modelling, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, 91191 Gif-sur-Yvette, France
| | - Joëlle Mascetti
- Institut des Sciences Moléculaires, CNRS, Université de Bordeaux, 33405 Talence, France
| | - Brett A McGuire
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- National Radio Astronomy Observatory, Charlottesville, VA 22903, USA
| | - Pablo Merino
- Instituto de Ciencia de Materiales de Madrid, Centro Superior de Investigacion Cientifica, E28049, Madrid, Spain
| | | | - Jon A Morse
- Steward Observatory, University of Arizona, Tucson, AZ 85721, USA
| | - Giacomo Mulas
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
- Osservatorio Astronomico di Cagliari, Instituto Nazionale di Astrofisca, 09047 Selargius, Italy
| | - Naslim Neelamkodan
- Department of Physics, College of Science, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Ryou Ohsawa
- National Astronomical Observatory of Japan, Tokyo 181-8588, Japan
| | - Roberta Paladini
- Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USA
| | | | - Amit Pathak
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Yvonne J Pendleton
- Department of Physics, University of Central Florida, Orlando, FL 32816, USA
| | - Annemieke Petrignani
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, 1090 GD Amsterdam, Netherlands
| | - Thomas Pino
- Innovative Common Laboratory for Space Spectroscopy, 06130 Grasse, France
| | - Elena Puga
- European Space Agency, Villanueva de la Cañada, E-28692 Madrid, Spain
| | | | - Mathias Rapacioli
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse, CNRS, Toulouse, France
| | - Alessandra Ricca
- Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7, Canada
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden
| | - Julia Roman-Duval
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Evelyne Roueff
- Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Gaël Rouillé
- Institute of Solid State Physics, Max Planck Institute for Astronomy, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Farid Salama
- NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - Dinalva A Sales
- Instituto de Matemática, Estatística e Física, Universidade Federal do Rio Grande, 96201-900, Rio Grande, Brazil
| | - Karin Sandstrom
- Center for Astrophysics and Space Sciences, Department of Physics, University of California, San Diego, CA 92093, USA
| | - Peter Sarre
- School of Chemistry, The University of Nottingham, Nottingham NG7 2RD, UK
| | | | - Kris Sellgren
- Astronomy Department, Ohio State University, Columbus, OH 43210, USA
| | | | - Adrien Simonnin
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
| | | | - David Teyssier
- European Space Agency, Villanueva de la Cañada, E-28692 Madrid, Spain
| | - Richard D Thomas
- Department of Physics, Stockholm University, SE-10691 Stockholm, Sweden
| | - Aditya Togi
- Department of Physics, Texas State University, San Marcos, TX 78666, USA
| | - Laurent Verstraete
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - Adolf N Witt
- Ritter Astrophysical Research Center, University of Toledo, Toledo, OH 43606, USA
| | - Alwyn Wootten
- National Radio Astronomy Observatory, Charlottesville, VA 22903, USA
| | - Nathalie Ysard
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiales, 31028 Toulouse, France
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | | | - Yong Zhang
- School of Physics and Astronomy, Sun Yat-sen University, Zhuhai 519000, China
| | - Ziwei E Zhang
- Star and Planet Formation Laboratory, Rikagaku Kenkyusho Cluster for Pioneering Research, Saitama 351-0198, Japan
| | - Junfeng Zhen
- Key Laboratory of Crust-Mantle Materials and Environment, Chinese Academy of Science, University of Science and Technology of China, Anhui 230026, China
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Berné O, Martin-Drumel MA, Schroetter I, Goicoechea JR, Jacovella U, Gans B, Dartois E, Coudert LH, Bergin E, Alarcon F, Cami J, Roueff E, Black JH, Asvany O, Habart E, Peeters E, Canin A, Trahin B, Joblin C, Schlemmer S, Thorwirth S, Cernicharo J, Gerin M, Tielens A, Zannese M, Abergel A, Bernard-Salas J, Boersma C, Bron E, Chown R, Cuadrado S, Dicken D, Elyajouri M, Fuente A, Gordon KD, Issa L, Kannavou O, Khan B, Lacinbala O, Languignon D, Le Gal R, Maragkoudakis A, Meshaka R, Okada Y, Onaka T, Pasquini S, Pound MW, Robberto M, Röllig M, Schefter B, Schirmer T, Sidhu A, Tabone B, Van De Putte D, Vicente S, Wolfire MG. Formation of the methyl cation by photochemistry in a protoplanetary disk. Nature 2023; 621:56-59. [PMID: 37364766 DOI: 10.1038/s41586-023-06307-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023]
Abstract
Forty years ago, it was proposed that gas-phase organic chemistry in the interstellar medium can be initiated by the methyl cation CH3+ (refs. 1-3), but so far it has not been observed outside the Solar System4,5. Alternative routes involving processes on grain surfaces have been invoked6,7. Here we report James Webb Space Telescope observations of CH3+ in a protoplanetary disk in the Orion star-forming region. We find that gas-phase organic chemistry is activated by ultraviolet irradiation.
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Affiliation(s)
- Olivier Berné
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, CNRS, CNES, UPS, Toulouse, France.
| | | | - Ilane Schroetter
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, CNRS, CNES, UPS, Toulouse, France
| | | | - Ugo Jacovella
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, Orsay, France
| | - Bérenger Gans
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, Orsay, France
| | - Emmanuel Dartois
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, Orsay, France
| | - Laurent H Coudert
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, Orsay, France
| | - Edwin Bergin
- Department of Astronomy, University of Michigan, Ann Arbor, MI, USA
| | - Felipe Alarcon
- Department of Astronomy, University of Michigan, Ann Arbor, MI, USA
| | - Jan Cami
- Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, Canada
- Institute for Earth and Space Exploration, The University of Western Ontario, London, Ontario, Canada
- Carl Sagan Center, SETI Institute, Mountain View, CA, USA
| | - Evelyne Roueff
- LERMA, Observatoire de Paris, PSL University, Sorbonne Université, CNRS, Meudon, France
| | - John H Black
- Department of Space, Earth, and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - Oskar Asvany
- I. Physikalisches Institut, Universität zu Köln, Cologne, Germany
| | - Emilie Habart
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | - Els Peeters
- Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, Canada
- Institute for Earth and Space Exploration, The University of Western Ontario, London, Ontario, Canada
- Carl Sagan Center, SETI Institute, Mountain View, CA, USA
| | - Amelie Canin
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, CNRS, CNES, UPS, Toulouse, France
| | - Boris Trahin
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | - Christine Joblin
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, CNRS, CNES, UPS, Toulouse, France
| | | | - Sven Thorwirth
- I. Physikalisches Institut, Universität zu Köln, Cologne, Germany
| | | | - Maryvonne Gerin
- LERMA, Observatoire de Paris, PSL University, Sorbonne Université, CNRS, Meudon, France
| | - Alexander Tielens
- Leiden Observatory, Leiden University, Leiden, the Netherlands
- Astronomy Department, University of Maryland, College Park, MD, USA
| | - Marion Zannese
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | - Alain Abergel
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | - Jeronimo Bernard-Salas
- ACRI-ST, Centre dEtudes et de Recherche de Grasse (CERGA), Grasse, France
- INCLASS Common Laboratory, Grasse, France
| | | | - Emeric Bron
- LERMA, Observatoire de Paris, PSL University, Sorbonne Université, CNRS, Meudon, France
| | - Ryan Chown
- Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, Canada
- Institute for Earth and Space Exploration, The University of Western Ontario, London, Ontario, Canada
| | - Sara Cuadrado
- Instituto de Física Fundamental (CSIC), Madrid, Spain
| | - Daniel Dicken
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | - Meriem Elyajouri
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | | | - Karl D Gordon
- Space Telescope Science Institute, Baltimore, MD, USA
| | - Lina Issa
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, CNRS, CNES, UPS, Toulouse, France
| | - Olga Kannavou
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | - Baria Khan
- Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, Canada
| | - Ozan Lacinbala
- KU Leuven Quantum Solid State Physics (QSP), Leuven, Belgium
| | - David Languignon
- LERMA, Observatoire de Paris, PSL University, Sorbonne Université, CNRS, Meudon, France
| | - Romane Le Gal
- Institut de Planétologie et d'Astrophysique de Grenoble, Université Grenoble Alpes, CNRS, Grenoble, France
- Institut de Radioastronomie Millimétrique (IRAM), Saint-Martin d'Hères, France
| | | | - Raphael Meshaka
- LERMA, Observatoire de Paris, PSL University, Sorbonne Université, CNRS, Meudon, France
| | - Yoko Okada
- I. Physikalisches Institut, Universität zu Köln, Cologne, Germany
| | - Takashi Onaka
- Department of Physics, Faculty of Science and Engineering, Meisei University, Tokyo, Japan
- Department of Astronomy, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Sofia Pasquini
- Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, Canada
| | - Marc W Pound
- Astronomy Department, University of Maryland, College Park, MD, USA
| | | | - Markus Röllig
- Physikalischer Verein-Gesellschaft für Bildung und Wissenschaft, Frankfurt, Germany
- Physikalisches Institut, Goethe-Universität, Frankfurt, Germany
| | - Bethany Schefter
- Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, Canada
| | - Thiébaut Schirmer
- Department of Space, Earth, and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | - Ameek Sidhu
- Department of Physics and Astronomy, The University of Western Ontario, London, Ontario, Canada
- Institute for Earth and Space Exploration, The University of Western Ontario, London, Ontario, Canada
| | - Benoit Tabone
- Institut d'Astrophysique Spatiale, Université Paris-Saclay CNRS, Orsay, France
| | | | - Sílvia Vicente
- Instituto de Astrofísica e Ciências do Espaço, Lisbon, Portugal
| | - Mark G Wolfire
- Astronomy Department, University of Maryland, College Park, MD, USA
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4
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Onaka T, Nakano K, Uemoto Y, Miyakawa N, Otsuka Y, Ogura-Kato A, Iwai F, Tanaka Y, Yonezawa A. Allogeneic Stem Cell Transplantation for Trisomy 8-Positive Myelodysplastic Syndrome or Myelodysplastic/Myeloproliferative Disease with Refractory Behçet's Disease, Case Report and the Review of Literature. Mod Rheumatol Case Rep 2022; 6:273-277. [PMID: 35365826 DOI: 10.1093/mrcr/rxac032] [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] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/12/2022] [Accepted: 03/25/2022] [Indexed: 11/12/2022]
Abstract
We had two cases of trisomy 8-positive myelodysplastic syndrome (MDS) with incomplete Behçet's disease (BD) in which the remissions of both diseases were maintained by allogeneic stem cell transplantation (allo-SCT). Among MDS with BD patients, sometimes it is difficult to control the symptoms of BD with standard therapies, such as corticosteroids and TNF inhibitors. Although there should be careful consideration regarding indications for transplantation, our two cases, in which refractory BD was completely controlled by allo-SCT, suggest that allo-SCT can be one of the treatment options for higher risk MDS with BD patients.
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Affiliation(s)
- Takashi Onaka
- Department of Hematology, Kokura Memorial Hospital, Japan
| | - Kazuhisa Nakano
- Department of Hematology, Kokura Memorial Hospital, Japan.,Department of Rheumatology, Kawasaki Medical School, Japan.,The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Yuri Uemoto
- Department of Hematology, Kokura Memorial Hospital, Japan.,The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Naoto Miyakawa
- Department of Hematology, Kokura Memorial Hospital, Japan
| | | | | | - Fumie Iwai
- Department of Hematology, Kokura Memorial Hospital, Japan
| | - Yoshiya Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
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5
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Kitagawa T, Onaka T, Yonezawa A. [HIV-negative plasmablastic lymphoma sustaining long-term response after autologous peripheral blood stem cell transplantation]. Rinsho Ketsueki 2022; 63:201-205. [PMID: 35387933 DOI: 10.11406/rinketsu.63.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The patient is a 34-year-old HIV antibody-negative female with normal immunocompetence. The patient was referred to the hospital of the current study due to diarrhea and abdominal pain, which developed in May 2014. On conducting computed tomography (CT), remarkable wall thickening was noted in the terminal ilium over the ascending colon, suggesting a malignant tumor. However, making a definite diagnosis by lower gastrointestinal endoscopic biopsy and left hemicolectomy was not possible. The dense proliferation of plasma cell-like cells and plasmablasts was noted; CD20, CD19, CD79a, CD3, CD4, and Epstein-Barr virus-encoded miRNAs (EBER) were negative and CD138 was positive on immunostaining. Based on the aforementioned data, the patient was diagnosed with plasmablastic lymphoma (PBL). High-dose chemotherapy combined with autologous peripheral blood stem cell transplantation (PBSCT) was performed in the first remission period after the completion of four cycles of hyper CVAD/MTX-AraC alternating therapy. Remission was confirmed by FDG-PET/CT 3 months after autologous PBSCT. No signs of recurrence have been observed in 6 years after the transplantation. Although no standard treatment for PBL has been established, autologous peripheral blood stem cell transplantation combined with high-dose chemotherapy during the first remission period may be a beneficial treatment option.
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Affiliation(s)
- Tomoya Kitagawa
- Department of Hematology, Kokura Memorial Hospital
- Department of Hematology, Kansai Electric Power Hospital
| | - Takashi Onaka
- Department of Hematology, Kansai Electric Power Hospital
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6
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Onaka T, Shiraki K, Yonezawa A. Improvement of acyclovir-resistant herpes zoster infection by amenamevir. J Dermatol 2021; 48:e478-e479. [PMID: 34137062 DOI: 10.1111/1346-8138.16027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/07/2021] [Accepted: 05/25/2021] [Indexed: 12/18/2022]
Affiliation(s)
- Takashi Onaka
- Department of Hematology, Kokura Memorial Hospital, Kitakyushu, Japan
| | | | - Akihito Yonezawa
- Department of Hematology, Kokura Memorial Hospital, Kitakyushu, Japan
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7
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Onaka T, Kato-Ogura A, Otsuka Y, Iwai F, Yonezawa A. A case report of combined treatment of gilteritinib and LH-RH agonist for Fms-related tyrosine kinase 3 receptor mutation-positive acute myeloid leukemia and bone marrow metastasis of prostate cancer. Ann Hematol 2021; 101:457-458. [PMID: 33846854 DOI: 10.1007/s00277-021-04516-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/05/2021] [Indexed: 11/27/2022]
Affiliation(s)
- Takashi Onaka
- Department of Hematology, Kokura Memorial Hospital, 3-2-1,Asano Kokura-kita, Kitakyushu, Japan.
| | - Aiko Kato-Ogura
- Department of Hematology, Kokura Memorial Hospital, 3-2-1,Asano Kokura-kita, Kitakyushu, Japan
| | - Yasuyuki Otsuka
- Department of Hematology, Kokura Memorial Hospital, 3-2-1,Asano Kokura-kita, Kitakyushu, Japan
| | - Fumie Iwai
- Department of Hematology, Kokura Memorial Hospital, 3-2-1,Asano Kokura-kita, Kitakyushu, Japan
| | - Akihito Yonezawa
- Department of Hematology, Kokura Memorial Hospital, 3-2-1,Asano Kokura-kita, Kitakyushu, Japan
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8
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Onaka T, Otsuka Y, Miyakawa N, Ogura A, Iwai F, Yonezawa A. [Treatment for acute leukemia showing PCR-positivity of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) at initial diagnosis: a case report and review of literature]. Rinsho Ketsueki 2021; 62:1604-1608. [PMID: 34866083 DOI: 10.11406/rinketsu.62.1604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The novel coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is rapidly spreading across the world. We encountered two patients with COVID-19 who underwent treatment for acute leukemia at initial diagnosis. Both the patients received conventional induction therapy without the exacerbation of COVID-19. Although the impact of SARS-CoV-2 on the treatment of leukemia is unclear, our treatment experience suggests that there is no major contraindication to standard chemotherapy for acute leukemia in patients with COVID-19. As COVID-19 continues to be a threat worldwide, further evaluations of large cohorts are needed for future treatment decisions for acute leukemia with COVID-19.
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Affiliation(s)
| | | | | | - Aiko Ogura
- Department of Hematology, Kokura Memorial Hospital
| | - Fumie Iwai
- Department of Hematology, Kokura Memorial Hospital
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9
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Famiano MA, Boyd RN, Kajino T, Chiba S, Mo Y, Onaka T, Suzuki T. Explaining the Variations in Isotopic Ratios in Meteoritic Amino Acids. Astrobiology 2020; 20:964-976. [PMID: 32783564 DOI: 10.1089/ast.2019.2186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Measurements of the isotopic abundances in meteoritic amino acids have found enhancements of 2H/H, 15N/14N, and 13C/12C in the amino acids in the meteorites studied. We show that they are consistent with the processing of the constituents of the meteorites by electron antineutrinos that would be expected from a core-collapse supernova or neutron-star merger. Using theoretical electron antineutrino cross-sections, we are able to predict these isotopic ratio variations depending on the time-integrated antineutrino flux at the site where the amino acids were processed.
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Affiliation(s)
- Michael A Famiano
- Department of Physics and Joint Institute for Nuclear Astrophysics, Western Michigan University, Kalamazoo, Michigan, USA
- National Astronomical Observatory of Japan, Tokyo, Japan
- School of Physics, Beihang University (Beijing University of Aeronautics and Astronautics), Beijing, P.R. China
| | - Richard N Boyd
- Department of Physics, Department of Astronomy, The Ohio State University, Columbus, Ohio, USA
| | - Toshitaka Kajino
- National Astronomical Observatory of Japan, Tokyo, Japan
- School of Physics, Beihang University (Beijing University of Aeronautics and Astronautics), Beijing, P.R. China
- Graduate School of Science, University of Tokyo, Tokyo, Japan
| | - Satoshi Chiba
- School of Physics, Beihang University (Beijing University of Aeronautics and Astronautics), Beijing, P.R. China
- Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, Tokyo, Japan
| | - Yirong Mo
- Department of Chemistry, Western Michigan University, Kalamazoo, Michigan, USA
| | - Takashi Onaka
- Department of Astronomy, Graduate School of Science, University of Tokyo, Tokyo, Japan
- Department of Physics, Meisei University, Tokyo, Japan
| | - Toshio Suzuki
- National Astronomical Observatory of Japan, Tokyo, Japan
- Department of Physics, Nihon University, Tokyo, Japan
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10
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Onaka T, Iwai F, Kato-Ogura A, Yonezawa A. Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection after allogeneic stem cell transplantation. Clin Case Rep 2020; 8:1791-1792. [PMID: 32837720 PMCID: PMC7307077 DOI: 10.1002/ccr3.2984] [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] [Received: 04/18/2020] [Revised: 05/07/2020] [Accepted: 05/12/2020] [Indexed: 02/06/2023] Open
Abstract
This is the first report of a case of COVID‐19 after allogeneic stem cell transplantation. Our case suggests that COVID‐19 may exist without characteristic CT images, especially in immunocompromised hosts, such as patients after transplantation.
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Affiliation(s)
- Takashi Onaka
- Department of Hematology Kokura Memorial Hospital Fukuoka Japan
| | - Fumie Iwai
- Department of Hematology Kokura Memorial Hospital Fukuoka Japan
| | - Aiko Kato-Ogura
- Department of Hematology Kokura Memorial Hospital Fukuoka Japan
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11
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Famiano M, Boyd R, Kajino T, Chiba S, Mo Y, Onaka T, Suzuki T. Connections Between Nuclear Physics and the Origin of Life - Examining the Origin of Biomolecular Chirality. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202022701006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The discovery of bio-molecules in meteorites with an excess of one chiral state has created one of the biggest questions in astrobiology today. That is, what is the origin of bio-molecular homochirality? Studies of this question are highly interdisciplinary, and while several phenomenological models exist, we examine the relationship between fundamental symmetries at the particle level and the macroscopic formation of bio-molecules. A model has been developed which couples fundamental interactions with the formation of molecular chirality. In this magneto-chiral model atomic nuclei bound in amino acids interact via the weak interaction in stellar environments. Nuclei are coupled to the molecular geometry (chirality) via the shielding tensor, the same interaction responsible for NMR identification. Associated with this is the fact that isotopic abundances vary from solar system values. Interactions with leptons can selectively destroy one chiral state over the other while changing isotopic values. Possible sites are proposed in which this model may exist.
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12
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Famiano MA, Boyd RN, Kajino T, Onaka T, Mo Y. Amino Acid Chiral Selection Via Weak Interactions in Stellar Environments: Implications for the Origin of Life. Sci Rep 2018; 8:8833. [PMID: 29891867 PMCID: PMC5995967 DOI: 10.1038/s41598-018-27110-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 05/25/2018] [Indexed: 11/12/2022] Open
Abstract
Magnetochiral phenomena may be responsible for the selection of chiral states of biomolecules in meteoric environments. For example, the Supernova Amino Acid Processing (SNAAP) Model was proposed previously as a possible mode of magnetochiral selection of amino acids by way of the weak interaction in strong magnetic fields. In earlier work, this model was shown to produce an enantiomeric excess (ee) as high as 0.014% for alanine. In this paper we present the results of molecular quantum chemistry calculations from which ees are determined for the α-amino acids plus isovaline and norvaline, which were found to have positive ees in meteorites. Calculations are performed for both isolated and aqueous states. In some cases, the aqueous state was found to produce larger ees reaching values as high as a few percent under plausible conditions.
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Affiliation(s)
- Michael A Famiano
- Department of Physics and Joint Institute for Nuclear Astrophysics, Western Michigan Univ., 1903 W. Michigan Avenue, Kalamazoo, MI, 49008-5252, USA. .,National Astronomical Observatory of Japan, 2-21-1 Mitaka, Tokyo, 181-8588, Japan.
| | - Richard N Boyd
- National Astronomical Observatory of Japan, 2-21-1 Mitaka, Tokyo, 181-8588, Japan.,Department of Physics, Department of Astronomy, The Ohio State Univ., Columbus, OH, 43210, USA
| | - Toshitaka Kajino
- National Astronomical Observatory of Japan, 2-21-1 Mitaka, Tokyo, 181-8588, Japan.,Department of Astronomy, Graduate School of Science, Univ. of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,School of Physics and Nuclear Energy Engineering, Beihang Univ. (Beijing Univ. of Aeronautics and Astronautics), Beijing, 100083, P.R. China
| | - Takashi Onaka
- Department of Astronomy, Graduate School of Science, Univ. of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yirong Mo
- Department of Chemistry, Western Michigan Univ., 1903 W. Michigan Avenue, Kalamazoo, MI, 49008-5252, USA
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13
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Affiliation(s)
- Takashi Onaka
- Kokura Memorial Hospital, Clinic of Hematology, Kitakyushu, Fukuoka, Japan
| | - Tomoya Kitagawa
- Kokura Memorial Hospital, Clinic of Hematology, Kitakyushu, Fukuoka, Japan
| | - Chika Kawakami
- University of Occupational and Environmental, Department of Dermatology, Fukuoka, Japan
| | - Akihito Yonezawa
- Kokura Memorial Hospital, Clinic of Hematology, Kitakyushu, Fukuoka, Japan
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14
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Famiano MA, Boyd RN, Kajino T, Onaka T. Selection of Amino Acid Chirality via Neutrino Interactions with 14N in Crossed Electric and Magnetic Fields. Astrobiology 2018; 18:190-206. [PMID: 29160728 PMCID: PMC5820686 DOI: 10.1089/ast.2017.1686] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 09/03/2017] [Indexed: 05/09/2023]
Abstract
Previous work has suggested that the chirality of the amino acids could be established in the magnetic field of a nascent neutron star from a core-collapse supernova or massive collapsar. The magnetic field would orient the 14N nuclei, and the alignment of its nuclear spin with respect to those of the electron antineutrinos emitted from the collapsing star would determine the probability of destruction of the 14N nuclei by interactions with the antineutrinos. Subsequent work estimated the bulk polarization of the 14N nuclei in large rotating meteoroids in such an environment. The present work adds a crucial piece of this model by describing the details by which the selective 14N nuclear destruction would produce molecular chiral selectivity. The effects of the neutrino-induced interactions on the 14N nuclei bound in amino acids polarized in strong magnetic fields are studied. It is shown that electric fields in the reference frame of the nuclei modify the magnetic field at the nucleus, creating nuclear magnetizations that are asymmetric in chirality. The antineutrino cross sections depend on this magnetization, creating a selective destructive effect. The environmental conditions and sites in which such a selection mechanism could occur are discussed. Selective destruction of D-enantiomers results in enantiomeric excesses which may be sufficient to drive subsequent autocatalysis necessary to produce the few-percent enantiomeric excesses found in meteorites and subsequent homochirality. Molecular quantum chemical calculations were performed for alanine, and the chirality-dependent effects studied were included. A preference for left-handed molecules was found, and enantiomeric excesses as high as 0.02% were estimated for molecules in the electromagnetic conditions expected from a core-collapse supernova. Key Words: Amino acids-Supernovae-Antineutrinos-Enantiomeric excess-Chirality. Astrobiology 18, 190-206.
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Affiliation(s)
- Michael A. Famiano
- Department of Physics and Joint Institute for Nuclear Astrophysics, Western Michigan University, Kalamazoo, Michigan, USA
- National Astronomical Observatory of Japan, Tokyo, Japan
| | - Richard N. Boyd
- National Astronomical Observatory of Japan, Tokyo, Japan
- Department of Physics, Department of Astronomy, The Ohio State University, Columbus, Ohio, USA
| | - Toshitaka Kajino
- National Astronomical Observatory of Japan, Tokyo, Japan
- Department of Astronomy, Graduate School of Science, University of Tokyo, Tokyo, Japan
- School of Physics and Nuclear Energy Engineering, Beihang University (Beijing University of Aeronautics and Astronautics), Beijing, P.R. China
| | - Takashi Onaka
- Department of Astronomy, Graduate School of Science, University of Tokyo, Tokyo, Japan
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15
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Onaka T, Takahashi N, Miura M, Yonezawa A. Drug interaction between tacrolimus and nilotinib in a patient with chronic myeloid leukemia after renal transplant. Clin Case Rep 2017; 5:605-607. [PMID: 28469859 PMCID: PMC5412900 DOI: 10.1002/ccr3.900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 02/03/2017] [Accepted: 02/16/2017] [Indexed: 11/29/2022] Open
Abstract
Nilotinib, a BCR‐ABL tyrosine kinase inhibitor, is a known inhibitor of CYP3A4 and could increase the concentration of drugs metabolized by CYP3A4. An immunosuppressive drug for nilotinib‐treated patients following transplant should be administered with careful pharmacokinetic monitoring because of its interaction with nilotinib.
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Affiliation(s)
- Takashi Onaka
- Department of Hematology; Kokura Memorial Hospital; Kitakyushu Japan
| | - Naoto Takahashi
- Department of Hematology, Nephrology, and Rheumatology; Akita University Graduate School of Medicine; Akita Japan
| | - Masatomo Miura
- Department of Pharmacy; Akita University Hospital; Akita Japan
| | - Akihito Yonezawa
- Department of Hematology; Kokura Memorial Hospital; Kitakyushu Japan
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16
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Katayama O, Kitagawa T, Onaka T, Yonezawa A. [Rapidly progressive hemorrhagic pneumonia caused by Stenotrophomonas maltophilia occurring early after bone marrow transplantation in a patient with myelodysplastic syndrome]. Rinsho Ketsueki 2017; 58:323-325. [PMID: 28484160 DOI: 10.11406/rinketsu.58.323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A 44-year-old woman had repeated bacterial infections because of hypoplastic myelodysplastic syndrome; therefore, she underwent allogeneic hematopoietic cell transplantation. Broad spectrum antibiotics were administered because she had bacterial infection and pneumonia 2 weeks before undergoing transplantation. On day19 after transplantation, she suddenly presented with hemoptysis. Stenotrophomonas maltophilia was considered to be the cause of hemorrhagic pneumonia, which required ventilation support, massive transfusion, and catecholamine administration. However, she died 8 h after the onset of hemoptysis. Severe S. maltophilia infections may occur in patients with immunocompromised conditions such as those after allogeneic hematopoietic cell transplantation.
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Affiliation(s)
- Oju Katayama
- Department of Hematology, Kokura Memorial Hospital
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17
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Ishiyama K, Kitawaki T, Sugimoto N, Sozu T, Anzai N, Okada M, Nohgawa M, Hatanaka K, Arima N, Ishikawa T, Tabata S, Onaka T, Oka S, Nakabo Y, Amakawa R, Matsui M, Moriguchi T, Takaori-Kondo A, Kadowaki N. Principal component analysis uncovers cytomegalovirus-associated NK cell activation in Ph + leukemia patients treated with dasatinib. Leukemia 2016; 31:203-212. [PMID: 27349810 DOI: 10.1038/leu.2016.174] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/02/2016] [Accepted: 06/06/2016] [Indexed: 12/25/2022]
Abstract
Dasatinib treatment markedly increases the number of large granular lymphocytes (LGLs) in a proportion of Ph+ leukemia patients, which associates with a better prognosis. The lymphocytosis is predominantly observed in cytomegalovirus (CMV)-seropositive patients, yet detectable CMV reactivation exists only in a small fraction of patients. Thus, etiology of the lymphocytosis still remains unclear. Here, we identified NK cells as the dominant LGLs expanding in dasatinib-treated patients, and applied principal component analysis (PCA) to an extensive panel of NK cell markers to explore underlying factors in NK cell activation. PCA displayed phenotypic divergence of NK cells that reflects CMV-associated differentiation and genetic differences, and the divergence was markedly augmented in CMV-seropositive dasatinib-treated patients. Notably, the CMV-associated highly differentiated status of NK cells was already observed at leukemia diagnosis, and was further enhanced after starting dasatinib in virtually all CMV-seropositive patients. Thus, the extensive characterization of NK cells by PCA strongly suggests that CMV is an essential factor in the NK cell activation, which progresses stepwise during leukemia and subsequent dasatinib treatment most likely by subclinical CMV reactivation. This study provides a rationale for the exploitation of CMV-associated NK cell activation for treatment of leukemias.
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Affiliation(s)
- K Ishiyama
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Kitawaki
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - N Sugimoto
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - T Sozu
- Department of Management Science, Faculty of Engineering, Tokyo University of Science, Tokyo, Japan
| | - N Anzai
- Department of Hematology and Oncology, Takatsuki Red Cross Hospital, Takatsuki, Japan
| | - M Okada
- Department of Hematology and Oncology, Takatsuki Red Cross Hospital, Takatsuki, Japan
| | - M Nohgawa
- Department of Hematology, Wakayama Red Cross Hospital, Wakayama, Japan
| | - K Hatanaka
- Department of Hematology, Wakayama Red Cross Hospital, Wakayama, Japan
| | - N Arima
- Department of Hematology, Kitano Hospital, Osaka, Japan
| | - T Ishikawa
- Department of Hematology, Kobe City Medical Center, Kobe, Japan
| | - S Tabata
- Department of Hematology, Kobe City Medical Center, Kobe, Japan
| | - T Onaka
- Department of Hematology, Kokura Memorial Hospital, Kitakyusyu, Japan
| | - S Oka
- Department of Hematology and Oncology, Shiga Medical Center for Adults, Moriyama, Japan
| | - Y Nakabo
- The Center for Hematological Diseases, Takeda General Hospital, Kyoto, Japan
| | - R Amakawa
- Department of Hematology, The Japan Baptist Hospital, Kyoto, Japan
| | - M Matsui
- Department of Hematology, Kyoto City Hospital, Kyoto, Japan
| | - T Moriguchi
- Department of Hematology, Kyoto-Katsura Hospital, Kyoto, Japan
| | - A Takaori-Kondo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - N Kadowaki
- Department of Internal Medicine, Division of Hematology, Rheumatology and Respiratory Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan
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18
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Matsuura T, Kawasaki M, Hashimoto H, Yoshimura M, Motojima Y, Saito R, Ueno H, Maruyama T, Ishikura T, Sabanai K, Mori T, Ohnishi H, Onaka T, Sakai A, Ueta Y. Possible Involvement of the Rat Hypothalamo-Neurohypophysial/-Spinal Oxytocinergic Pathways in Acute Nociceptive Responses. J Neuroendocrinol 2016; 28. [PMID: 27144381 DOI: 10.1111/jne.12396] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 04/23/2016] [Accepted: 04/29/2016] [Indexed: 11/28/2022]
Abstract
Oxytocin (OXT)-containing neurosecretory cells in the parvocellular divisions of the paraventricular nucleus (PVN), which project to the medulla and spinal cord, are involved in various physiological functions, such as sensory modulation and autonomic processes. In the present study, we examined OXT expression in the hypothalamo-spinal pathway, as well as the hypothalamo-neurohypophysial system, which includes the magnocellular neurosecretory cells in the PVN and the supraoptic nucleus (SON), after s.c. injection of saline or formalin into the hindpaws of transgenic rats that express the OXT and monomeric red fluorescent protein 1 (mRFP1) fusion gene. (i) The numbers of OXT-mRFP1 neurones that expressed Fos-like immunoreactivity (-IR) and OXT-mRFP1 intensity were increased significantly in the magnocellular/parvocellular PVN and SON after s.c. injection of formalin. (ii) OXT-mRFP1 neurones in the anterior parvocellular PVN, which may project to the dorsal horn of the spinal cord, were activated by s.c. injection of formalin, as indicated by a significant increases of Fos-IR and mRFP1 intensity intensity. (iii) Formalin injection caused a significant transient increase in plasma OXT. (iv) OXT, mRFP1 and corticotrophin-releasing hormone mRNAs in the PVN were significantly increased after s.c. injection of formalin. (v) An intrathecal injection of OXT-saporin induced hypersensitivity in conscious rats. Taken together, these results suggest that the hypothalamo-neurohypophysial/-spinal OXTergic pathways may be involved in acute nociceptive responses in rats.
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Affiliation(s)
- T Matsuura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
- Department of Orthopaedics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Kawasaki
- Department of Orthopaedics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - H Hashimoto
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Yoshimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Motojima
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
- Department of Orthopaedics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - R Saito
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - H Ueno
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Maruyama
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Ishikura
- Department of Orthopaedics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - K Sabanai
- Department of Orthopaedics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Mori
- Department of Orthopaedics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - H Ohnishi
- Department of Orthopaedics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Onaka
- Division of Brain and Neurophysiology, Department of Physiology, Jichi Medical University, Shimotsuke-shi, Tochigi-ken, Japan
| | - A Sakai
- Department of Orthopaedics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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Onaka T, Kitagawa T, Mori M, Yonezawa A, Imada K. [Infliximab therapy for Crohn's-like gastrointestinal lesions after allogeneic bone marrow transplantation]. Rinsho Ketsueki 2016; 56:2452-5. [PMID: 26725354 DOI: 10.11406/rinketsu.56.2452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 45-year-old man was diagnosed with t(8;21) positive acute myelogenous leukemia and failed to achieve complete remission (CR) after the first induction chemotherapy. He was then treated with high-dose cytarabine and achieved CR. Molecular relapse was detected during post-remission therapy and he underwent myeloablative bone marrow transplantation from his HLA-matched sibling donor. One year after transplantation, he developed an intractable anal fistula during treatment of chronic GVHD. Colonoscopy showed longitudinal ulcers and cobblestone appearance, and histopathological examination revealed non-caseating epithelioid granuloma. According to these findings, he was diagnosed with Crohn's-like chronic gastrointestinal inflammatory disease. He was treated with enteral nutrition, mesalazine and dose re-escalation of cyclosporine, but these therapies were not effective. Therefore, we decided to treat him with infliximab. After starting treatment with infliximab, his abdominal symptoms and the anal fistula showed prompt improvement. There are few reports regarding the efficacy of infliximab for gastrointestinal chronic GVHD. Our experience suggests that infliximab could be useful for the treatment of Crohn's-like gastrointestinal inflammatory disease.
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Sasaki Y, Yonezawa A, Kinoshita Y, Kitagawa T, Mori M, Onaka T, Imada K. [Extranodal natural killer/T-cell lymphoma, nasal type developing central nervous system and epididymis involvement immediately after concurrent chemoradiotherapy]. Rinsho Ketsueki 2016; 56:2472-6. [PMID: 26725358 DOI: 10.11406/rinketsu.56.2472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 66-year-old man showed central nervous system (CNS) and epididymis involvement after concurrent chemoradiotherapy for extranodal natural killer/T-cell lymphoma, nasal type (ENKL). The patient experienced continuous nasal obstruction. CT revealed a mass in the nasal cavity and paranasal sinuses. Biopsy of the nasal cavity mass showed it to be ENKL. Based on bone marrow biopsy and 18F-FDG PET/CT findings, the clinical stage was suspected to be IIE. The sites involved were the nasal cavity, paranasal sinuses, and cervical lymph nodes. We performed concurrent chemoradiotherapy consisting of a 67% dose of DeVIC and involved field radiation therapy towards his head and neck. Head and neck CT confirmed a therapeutic response. After receiving concurrent chemoradiotherapy, the patient complained of perineal discomfort. Ultrasonography revealed swelling of the left epididymis. Left epididymis biopsy showed ENKL involvement and lumbar puncture revealed CNS involvement. The findings of this case suggest that evaluation of CNS involvement might be an essential part of the initial workup for some ENKL patients.
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Affiliation(s)
- Yuya Sasaki
- Department of Hematology, Kokura Memorial Hospital
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21
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Onaka T, Yonezawa A. Herpes zoster duplex bilateralis in bortezomib-based chemotherapy. Blood Res 2016; 51:155. [PMID: 27722123 PMCID: PMC5054244 DOI: 10.5045/br.2016.51.3.155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 06/11/2015] [Accepted: 06/29/2015] [Indexed: 12/04/2022] Open
Affiliation(s)
- Takashi Onaka
- Department of Hematology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Akihito Yonezawa
- Department of Hematology, Kokura Memorial Hospital, Kitakyushu, Japan
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22
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Mori M, Yonezawa A, Kitagawa T, Sasaki Y, Onaka T, Imada K. [Successful second cord blood transplantation (CBT) for late graft failure associated with several immune disorders after the initial CBT in a patient with acute myeloid leukemia]. Rinsho Ketsueki 2015; 56:889-94. [PMID: 26251154 DOI: 10.11406/rinketsu.56.889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 64-year-old woman underwent reduced-intensity conditioning cord blood transplantation (RIC-CBT) for refractory acute myeloid leukemia (AML). A 6/6 antigen-level HLA-identical cord blood from a male infant was transfused. After successful engraftment with complete donor chimerism, the patient developed mixed chimera (XX 8.8%) on day 82. Tapering of tacrolimus was started on day 96. Bone marrow chimerism analysis showed a decreasing recipient cell population (XX 2.2%) on day 117 and tacrolimus was discontinued with no clinical signs of GVHD on day 123. However, pancytopenia with agranulocytosis was detected on day 138. She was diagnosed as having secondary graft failure associated with Coombs-positive immune hemolytic anemia and immune thrombocytopenia (ITP). At the same time, the percentage of recipient T cell chimerism in peripheral blood was about 50% and the B cell population showed lambda light chain restriction. On day 180, she received a second RIC-CBT due to lack of improvement of agranulocytosis. A single dose of rituximab was administered on day - 11 before the second CBT to eliminate the activated B cells. Prompt neutrophil engraftment was achieved and both hemolytic anemia and ITP also showed resolution. She is currently well (30 months after the second CBT), showing normal blood cell counts and complete second donor chimerism of marrow cells.
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Affiliation(s)
- Minako Mori
- Department of Hematology, Kokura Memorial Hospital
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23
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Mori M, An Y, Katayama O, Kitagawa T, Sasaki Y, Onaka T, Yonezawa A, Murata K, Yokota T, Ando K, Imada K. Clinical and echocardiographic characteristics for differentiating between transthyretin-related and light-chain cardiac amyloidoses. Ann Hematol 2015; 94:1885-90. [PMID: 26251157 DOI: 10.1007/s00277-015-2466-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 07/22/2015] [Indexed: 11/29/2022]
Abstract
Differential diagnosis between transthyretin (TTR) and immunoglobulin light-chain (AL) cardiac amyloidoses is essential due to significantly different prognoses and therapeutic options. Therefore, clinical characteristics of patients with biopsy-proven cardiac amyloidosis were investigated to differentiate TTR from AL amyloidosis. From September 2006 to May 2014, 46 patients were confirmed to have cardiac amyloidosis (TTR, n = 28; AL, n = 18) in our institute. The median age of patients with TTR amyloidosis was 78 years (range 61-90) with 27 (96 %) males, while that of patients with AL amyloidosis was 66 (range 52-76) with 12 (67 %) males. There were no statistically significant differences in echocardiographic findings regarding left ventricular (LV) systolic function or diastolic dysfunction between the two groups. Interestingly, serum brain natriuretic peptide (BNP) levels in patients with AL amyloidosis were significantly higher than those in TTR amyloidosis patients. In contrast, the LV wall was significantly thicker in patients with TTR amyloidosis than in those with AL amyloidosis. Therefore, the ratio of BNP to LV mass index (LVMI) at presentation in AL amyloidosis patients was significantly higher than that in TTR patients (6.7 vs 2.9, p = 0.0006). A BNP-LVMI ratio of less than 3.5 had a diagnostic sensitivity and specificity for TTR amyloidosis of 71 and 83 %, respectively. One-year overall survival was 88.7 % in the patients with TTR amyloidosis and 23.7 % in the patients with AL amyloidosis. Our analysis indicates that the BNP-LVMI ratio, as well as age and sex, may be useful parameters for distinguishing TTR from AL cardiac amyloidosis.
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Affiliation(s)
- Minako Mori
- Department of Hematology, Kokura Memorial Hospital, 3-2-1 Asano, Kokurakita-Ku, Kitakyushu, Fukuoka, 802-8555, Japan
| | - Yoshimori An
- Department Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Oju Katayama
- Department of Hematology, Kokura Memorial Hospital, 3-2-1 Asano, Kokurakita-Ku, Kitakyushu, Fukuoka, 802-8555, Japan
| | - Tomoya Kitagawa
- Department of Hematology, Kokura Memorial Hospital, 3-2-1 Asano, Kokurakita-Ku, Kitakyushu, Fukuoka, 802-8555, Japan
| | - Yuya Sasaki
- Department of Hematology, Kokura Memorial Hospital, 3-2-1 Asano, Kokurakita-Ku, Kitakyushu, Fukuoka, 802-8555, Japan
| | - Takashi Onaka
- Department of Hematology, Kokura Memorial Hospital, 3-2-1 Asano, Kokurakita-Ku, Kitakyushu, Fukuoka, 802-8555, Japan
| | - Akihito Yonezawa
- Department of Hematology, Kokura Memorial Hospital, 3-2-1 Asano, Kokurakita-Ku, Kitakyushu, Fukuoka, 802-8555, Japan
| | - Kenichiro Murata
- Diagnostic Pathology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Tadaaki Yokota
- Diagnostic Pathology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Kenji Ando
- Department Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Kazunori Imada
- Department of Hematology, Kokura Memorial Hospital, 3-2-1 Asano, Kokurakita-Ku, Kitakyushu, Fukuoka, 802-8555, Japan.
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Pilleri P, Joblin C, Boulanger F, Onaka T. Mixed aliphatic and aromatic composition of evaporating very small grains in NGC 7023 revealed by the 3.4/3.3 μm ratio. Astron Astrophys 2015; 577:A16. [PMID: 26594053 PMCID: PMC4650199 DOI: 10.1051/0004-6361/201425590] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT A chemical scenario was proposed for photon-dominated regions (PDRs) according to which UV photons from nearby stars lead to the evaporation of very small grains (VSGs) and the production of gas-phase polycyclic aromatic hydrocarbons (PAHs). AIMS Our goal is to achieve better insight into the composition and evolution of evaporating very small grains (eVSGs) and PAHs through analyzing the infrared (IR) aliphatic and aromatic emission bands. METHODS We combined spectro-imagery in the near- and mid-IR to study the spatial evolution of the emission bands in the prototypical PDR NGC 7023. We used near-IR spectra obtained with the IRC instrument onboard AKARI to trace the evolution of the 3.3 μm and 3.4 μm bands, which are associated with aromatic and aliphatic C-H bonds on PAHs. The spectral fitting involved an additional broad feature centered at 3.45 μm that is often referred to as the plateau. Mid-IR observations obtained with the IRS instrument onboard the Spitzer Space Telescope were used to distinguish the signatures of eVSGs and neutral and cationic PAHs. We correlated the spatial evolution of all these bands with the intensity of the UV field given in units of the Habing field G0 to explore how their carriers are processed. RESULTS The intensity of the 3.45 μm plateau shows an excellent correlation with that of the 3.3 μm aromatic band (correlation coefficient R = 0.95) and a relatively poor correlation with the aliphatic 3.4 μm band (R=0.77). This indicates that the 3.45 μm feature is dominated by the emission from aromatic bonds. We show that the ratio of the 3.4 μm and 3.3 μm band intensity (I3.4/I3.3) decreases by a factor of 4 at the PDR interface from the more UV-shielded layers (G0 ~ 150, I3.4/I3.3 = 0.13) to the more exposed layers (G0 > 1 × 104, I3.4/I3.3 = 0.03). The intensity of the 3.3 μm band relative to the total neutral PAH intensity shows an overall increase with G0, associated with an increase of both the hardness of the UV field and the H abundance. In contrast, the intensity of the 3.4 μm band relative to the total neutral PAH intensity decreases with G0, showing that their carriers are actively destroyed by UV irradiation and are not efficiently regenerated. The transition region between the aliphatic and aromatic material is found to correspond spatially with the transition zone between neutral PAHs and eVSGs. CONCLUSIONS We conclude that the photo-processing of eVSGs leads to the production of PAHs with attached aliphatic sidegroups that are revealed by the 3.4 μm emission band. Our analysis provides evidence for the presence of very small grains of mixed aromatic and aliphatic composition in PDRs.
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Affiliation(s)
- P Pilleri
- Université de Toulouse; UPS-OMP; IRAP; Toulouse, France ; CNRS; IRAP; 9 Av. colonel Roche, BP 44346, F-31028 Toulouse cedex 4, France
| | - C Joblin
- Université de Toulouse; UPS-OMP; IRAP; Toulouse, France ; CNRS; IRAP; 9 Av. colonel Roche, BP 44346, F-31028 Toulouse cedex 4, France
| | - F Boulanger
- Institut d'Astrophysique Spatiale, 91405, Orsay, France
| | - T Onaka
- Department of Astronomy, Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan
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Miyamoto M, Watanabe Y, Tanaka H, Komatsu I, Onaka T, Hujita R, Miyahara I, Iyoki M, Tanabe Y, Azuma M, Matsuura A, Mizobuchi S. PP116-SUN: The Modulation of Immunological Activities in Human NK Cells by the Aureobasidium Pullulans Induced Beta 1,3-1,6 Glucan. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50158-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Kamizuka T, Miyata T, Sako S, Imada H, Ohsawa R, Asano K, Uchiyama M, Okada K, Uchiyama M, Wada T, Nakagawa T, Nakamura T, Sakon I, Onaka T. Development of high-throughput silicon lens and grism with moth-eye anti-reflection structure. ACTA ACUST UNITED AC 2014. [DOI: 10.1117/12.2055756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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27
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Mori M, Kitagawa T, Sasaki Y, Onaka T, Yonezawa A, Morimoto H, Haratake J, Imada K. [Long-term survival of a patient with multiple myeloma-associated severe cardiac AL amyloidosis after implantation of a cardioverter-defibrillator]. Rinsho Ketsueki 2014; 55:450-455. [PMID: 24850457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cardiac involvement is by far the most relevant factor impacting poor outcomes of patients with systemic light-chain (AL) amyloidosis. Median survival of patients with symptomatic cardiac AL amyloidosis is less than 6 months. Approximately two-thirds of these patients die suddenly due to ventricular arrhythmias and electromechanical dissociation. We report a 56-year-old female with very severe cardiac AL amyloidosis (NT-proBNP 13,355 ng/l, troponin T 0.16 μg/l, and systolic blood pressure 100 mmHg), who was successfully treated with diuretics and an implantable cardioverter-defibrillator (ICD) and has survived for more than 4 years, to date. During the 4-year period after receiving the ICD, she experienced several episodes of sustained ventricular tachycardia and ventricular fibrillation, all successfully terminated by anti-tachycardia pacing or electrical shock. The benefit of ICD for cardiac AL amyloidosis is unclear since there have been only a few reports of successful use of this therapy for patients with cardiac AL amyloidosis. Recently, new treatment options for AL amyloidosis, such as bortezomib and lenalidomide, have shown high response rates and improved outcomes. It is important to identify those cardiac amyloidosis patients who might be more likely to benefit from ICD implantation.
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Affiliation(s)
- Minako Mori
- Department of Hematology, Kokura Memorial Hospital
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28
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Hoshi A, Aoki S, Kouno E, Ogasawara M, Onaka T, Miura Y, Mamiya K. A novel objective sour taste evaluation method based on near-infrared spectroscopy. Chem Senses 2014; 39:313-22. [PMID: 24474216 DOI: 10.1093/chemse/bjt118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
One of the most important themes in the development of foods and drinks is the accurate evaluation of taste properties. In general, a sensory evaluation system is frequently used for evaluating food and drink. This method, which is dependent on human senses, is highly sensitive but is influenced by the eating experience and food palatability of individuals, leading to subjective results. Therefore, a more effective method for objectively estimating taste properties is required. Here we show that salivary hemodynamic signals, as measured by near-infrared spectroscopy, are a useful objective indicator for evaluating sour taste stimulus. In addition, the hemodynamic responses of the parotid gland are closely correlated to the salivary secretion volume of the parotid gland in response to basic taste stimuli and respond to stimuli independently of the hedonic aspect. Moreover, we examined the hemodynamic responses to complex taste stimuli in food-based solutions and demonstrated for the first time that the complicated phenomenon of the "masking effect," which decreases taste intensity despite the additional taste components, can be successfully detected by near-infrared spectroscopy. In summary, this study is the first to demonstrate near-infrared spectroscopy as a novel tool for objectively evaluating complex sour taste properties in foods and drinks.
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Affiliation(s)
- Ayaka Hoshi
- Central Laboratories for Key Technologies, Kirin Company Limited, 1-13-5, Fukuura, Kanagawa-ku, Yokohama 236-0004, Japan.
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Yamashita M, Takayanagi Y, Yoshida M, Nishimori K, Kusama M, Onaka T. Involvement of prolactin-releasing peptide in the activation of oxytocin neurones in response to food intake. J Neuroendocrinol 2013; 25:455-65. [PMID: 23363338 PMCID: PMC3664423 DOI: 10.1111/jne.12019] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 12/10/2012] [Accepted: 12/26/2012] [Indexed: 12/16/2022]
Abstract
Food intake activates neurones expressing prolactin-releasing peptide (PrRP) in the medulla oblongata and oxytocin neurones in the hypothalamus. Both PrRP and oxytocin have been shown to have an anorexic action. In the present study, we investigated whether the activation of oxytocin neurones following food intake is mediated by PrRP. We first examined the expression of PrRP receptors (also known as GPR10) in rats. Immunoreactivity of PrRP receptors was observed in oxytocin neurones and in vasopressin neurones in the paraventricular and supraoptic nuclei of the hypothalamus and in the bed nucleus of the stria terminalis. Application of PrRP to isolated supraoptic nuclei facilitated the release of oxytocin and vasopressin. In mice, re-feeding increased the expression of Fos protein in oxytocin neurones of the hypothalamus and bed nucleus of the stria terminalis. The increased expression of Fos protein in oxytocin neurones following re-feeding or i.p. administration of cholecystokinin octapeptide (CCK), a peripheral satiety factor, was impaired in PrRP-deficient mice. CCK-induced oxytocin increase in plasma was also impaired in PrRP-deficient mice. Furthermore, oxytocin receptor-deficient mice showed an increased meal size, as reported in PrRP-deficient mice and in CCKA receptor-deficient mice. These findings suggest that PrRP mediates, at least in part, the activation of oxytocin neurones in response to food intake, and that the CCK-PrRP-oxytocin pathway plays an important role in the control of the termination of each meal.
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Affiliation(s)
- M Yamashita
- Division of Brain and Neurophysiology, Department of Physiology, Jichi Medical University, Shimotsuke-shi, Japan
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Mori M, Kitagawa T, Sasaki Y, Onaka T, Yonezawa A, Imada K. [Streptococcal toxic shock-like syndrome caused by Streptococcus dysgalactiae subsp. equisimilis in a patient with acute myeloid leukemia at diagnosis]. Rinsho Ketsueki 2013; 54:219-223. [PMID: 23470831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A 46-year-old woman was urgently admitted to our hospital due to acute renal failure, liver dysfunction, disseminated intravascular coagulation, shock status, and impaired consciousness. About 1 day prior to admission, she developed a high-grade fever, bilateral lower leg pain, and multiple small papules. She was diagnosed with streptococcal toxic shock syndrome (STSS) caused by Streptococcus dysgalactiae subsp. equisimilis (SDSE) associated with acute myeloid leukemia. The emm gene type of the isolated SDSE was shown to be stG2078. Her invasive streptococcal infection resolved with immediate administration of meropenem and continuous hemodiafiltration. However, she died of septic shock caused by multidrug-resistant Pseudomonas aeruginosa one month after admission. Recently, epidemiological studies have shown increasing numbers of invasive SDSE infections, including STSS and necrotizing fasciitis, often among immunocompromised patients. This suggests that hematologists as well as primary care doctors need to be aware of the possibility of the invasive infections caused by SDSE. An influenza-like illness consisting of a fever, lower extremity pain, and diarrhea are common initial symptoms in STSS patients. Awareness of these prodromal symptoms could lead to the early diagnosis of the illness and prompt initiation of antibiotic treatment.
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Affiliation(s)
- Minako Mori
- Department of Hematology, Kokura Memorial Hospital, Japan
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Mori M, Kitagawa T, Sasaki Y, Yamamoto K, Onaka T, Yonezawa A, Imada K. [Lethal pulmonary hemorrhage caused by Stenotrophomonas maltophilia pneumonia in a patient with acute myeloid leukemia]. ACTA ACUST UNITED AC 2012; 86:300-5. [PMID: 22746054 DOI: 10.11150/kansenshogakuzasshi.86.300] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A 63-year-old man had been treated with intensive chemotherapy for acute myeloid leukemia. On the 49th hospital day, he had febrile neutropenia after the second course of induction chemotherapy. On the 53 rd hospital day, he presented with hemoptysis and developed acute respiratory failure requiring ventilator support within several hours. On the 54th hospital day, the patient died with hemorrhagic respiratory infection. Stenotrophomonas maltophilia was detected in bacterial cultures of his blood, bronchoalveolar lavage, and sputum. To our knowledge, nine cases of fatal hemorrhagic pneumonia caused by S. maltophilia have been reported in the literature. All the patients had hematological neoplasms and were severely neutropenic after one or two intensive chemotherapy regimens. They died shortly (within 3 days) after the onset of the hemorrhagic pneumonia. Management of the infection caused by S. maltophilia is hampered by high-level intrinsic resistance to multiple antibiotics and the increasing occurrence of acquired resistance to co-trimoxazole and fluoroquinolones. It would be important to keep in mind that hemorrhagic respiratory infection caused by S. maltophilia may lead to a fulminant and lethal course in severely neutropenic patients with hematological neoplasms and to recognize which antibiotic agents are more sensitive to S. maltophilia in each institution.
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Affiliation(s)
- Minako Mori
- Department of Hematology, Kokura Memorial Hospital
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Abstract
Oxytocin neurones are activated by stressful stimuli, food intake and social attachment. Activation of oxytocin neurones in response to stressful stimuli or food intake is mediated, at least in part, by noradrenaline/prolactin-releasing peptide (PrRP) neurones in the nucleus tractus solitarius, whereas oxytocin neurones are activated after social stimuli via medial amygdala neurones. Activation of oxytocin neurones induces the release of oxytocin not only from their axon terminals, but also from their dendrites. Oxytocin acts locally where released or diffuses and acts on remote oxytocin receptors widely distributed within the brain, resulting in anxiolytic, anorexic and pro-social actions. The action sites of oxytocin appear to be multiple. Oxytocin shows anxiolytic actions, at least in part, via serotoninergic neurones in the median raphe nucleus, has anorexic actions via pro-opiomelanocortin neurones in the nucleus tractus solitarius and facilitates social recognition via the medial amygdala. Stress, obesity and social isolation are major risk factors for mortality in humans. Thus, the oxytocin-oxytocin receptor system is a therapeutic target for the promotion of human health.
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Affiliation(s)
- T Onaka
- Division of Brain and Neurophysiology, Department of Physiology, Jichi Medical University, Shinotsuke-shi, Tochigi-ken, Japan.
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Onaka T, Takahashi N, Miura M, Yonezawa A, Imada K, Sawada K. Pharmacokinetics of nilotinib in imatinib-resistant/intolerant chronic myeloid leukemia patients on hemodialysis for chronic renal failure. Am J Hematol 2012; 87:451. [PMID: 22407703 DOI: 10.1002/ajh.23125] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Abstract
In magnocellular neurones of the supraoptic nucleus (SON), the neuropeptides vasopressin and oxytocin are synthesised and packaged into large dense-cored vesicles (LDCVs). These vesicles undergo regulated exocytosis from nerve terminals in the posterior pituitary gland and from somata/dendrites in the SON. Regulated exocytosis of LDCVs is considered to involve the soluble N-ethylmaleimide sensitive fusion protein attachment protein receptor (SNARE) complex [comprising vesicle associated membrane protein 2 (VAMP-2), syntaxin-1 and soluble N-ethylmaleimide attachment protein-25 (SNAP-25)] and regulatory proteins [such as synaptotagmin-1, munc-18 and Ca(2+) -dependent activator protein for secretion (CAPS-1)]. Using fluorescent immunocytochemistry and confocal microscopy, in both oxytocin and vasopressin neurones, we observed VAMP-2, SNAP-25 and syntaxin-1-immunoreactivity in axon terminals. The somata and dendrites contained syntaxin-1 and other regulatory exocytosis proteins, including munc-18 and CAPS-1. However, the distribution of VAMP-2 and synaptotagmin-1 in the SON was limited to putative pre-synaptic contacts because they co-localised with synaptophysin (synaptic vesicle marker) and had no co-localisation with either oxytocin or vasopressin. SNAP-25 immunoreactivity in the SON was limited to glial cell processes and was not detected in oxytocin or vasopressin somata/dendrites. The present results indicate differences in the expression and localisation of exocytosis proteins between the axon terminals and somata/dendritic compartment. The absence of VAMP-2 and SNAP-25 immunoreactivity from the somata/dendrites suggests that there might be different SNARE protein isoforms expressed in these compartments. Alternatively, exocytosis of LDCVs from somata/dendrites may use a different mechanism from that described by the SNARE complex theory.
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Affiliation(s)
- V. Tobin
- Centre for Integrative Physiology, University of Edinburgh, Edinburgh, UK
| | - Y. Schwab
- Hotchkiss Brain Institute, Department of Physiology and Pharmacology, University of Calgary, Calgary, Canada
| | - N. Lelos
- Centre for Integrative Physiology, University of Edinburgh, Edinburgh, UK
| | - T. Onaka
- Department of Physiology, Jichi Medical University, Tochigi, Japan
| | - Q. J. Pittman
- Hotchkiss Brain Institute, Department of Physiology and Pharmacology, University of Calgary, Calgary, Canada
| | - M. Ludwig
- Centre for Integrative Physiology, University of Edinburgh, Edinburgh, UK
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Abstract
A mechanism for creating an enantioenrichment in the amino acids, the building blocks of the proteins, that involves global selection of one handedness by interactions between the amino acids and neutrinos from core-collapse supernovae is defined. The chiral selection involves the dependence of the interaction cross sections on the orientations of the spins of the neutrinos and the (14)N nuclei in the amino acids, or in precursor molecules, which in turn couple to the molecular chirality. It also requires an asymmetric distribution of neutrinos emitted from the supernova. The subsequent chemical evolution and galactic mixing would ultimately populate the Galaxy with the selected species. The resulting amino acids could either be the source thereof on Earth, or could have triggered the chirality that was ultimately achieved for Earth's proteinaceous amino acids.
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Affiliation(s)
- Richard N. Boyd
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Toshitaka Kajino
- National Astronomical Observatory of Japan, 2-21-1 Mitaka, Tokyo 181-8588, Japan; E-Mail:
- Department of Astronomy, Graduate School of Science, University of Tokyo 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; E-Mail:
| | - Takashi Onaka
- Department of Astronomy, Graduate School of Science, University of Tokyo 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; E-Mail:
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Kaneda H, Onaka T, Sakon I, Ishihara D, Mouri A, Yamagishi M, Yasuda A. PAH evolution in the harsh environment of the ISM. ACTA ACUST UNITED AC 2011. [DOI: 10.1051/eas/1146017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Toriya M, Maekawa F, Maejima Y, Onaka T, Fujiwara K, Nakagawa T, Nakata M, Yada T. Long-term infusion of brain-derived neurotrophic factor reduces food intake and body weight via a corticotrophin-releasing hormone pathway in the paraventricular nucleus of the hypothalamus. J Neuroendocrinol 2010; 22:987-95. [PMID: 20561155 DOI: 10.1111/j.1365-2826.2010.02039.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) has been implicated in learning, depression and energy metabolism. However, the neuronal mechanisms underlying the effects of BDNF on energy metabolism remain unclear. The present study aimed to elucidate the neuronal pathways by which BDNF controls feeding behaviour and energy balance. Using an osmotic mini-pump, BDNF or control artificial cerebrospinal fluid was infused i.c.v. at the lateral ventricle or into the paraventricular nucleus of the hypothalamus (PVN) for 12 days. Intracerebroventricular BDNF up-regulated mRNA expression of corticotrophin-releasing hormone (CRH) and urocortin in the PVN. TrkB, the receptor for BDNF, was expressed in the PVN neurones, including those containing CRH. Both i.c.v. and intra-PVN-administered BDNF decreased food intake and body weight. These effects of BDNF on food intake and body weight were counteracted by the co-administration of alpha-helical-CRH, an antagonist for the CRH and urocortin receptors CRH-R1/R2, and partly attenuated by a selective antagonist for CRH-R2 but not CRH-R1. Intracerebroventricular BDNF also decreased the subcutaneous and visceral fat mass, adipocyte size and serum triglyceride levels, which were all attenuated by alpha-helical-CRH. Furthermore, BDNF decreased the respiratory quotient and raised rectal temperature, which were counteracted by alpha-helical-CRH. These results indicate that the CRH-urocortin-CRH-R2 pathway in the PVN and connected areas mediates the long-term effects of BDNF to depress feeding and promote lipolysis.
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Affiliation(s)
- M Toriya
- Division of Integrative Physiology, Department of Physiology, Jichi Medical University, Shimostuke, Tochigi, Japan
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38
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Kaneda H, Naitoh M, Imai T, Tange Y, Enya K, Katayama H, Maruyama K, Nakagawa T, Onaka T, Suganuma M, Kano R, Kiriyama Y, Mori T, Takahashi A. Cryogenic optical testing of an 800 mm lightweight C/SiC composite mirror mounted on a C/SiC optical bench. Appl Opt 2010; 49:3941-3948. [PMID: 20648171 DOI: 10.1364/ao.49.003941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We tested the optical performance at cryogenic temperatures of an 800 mm diameter lightweight mirror, consisting of carbon-fiber reinforced silicon carbide and with a mass of 11.2 kg. The ceramic composite of the mirror was HB-Cesic, developed by ECM, Germany, and Mitsubishi Electric Corporation, Japan. The test was carried out while the mirror was mounted, via Invar stress relief supports, on a lightweight optical bench also made of HB-Cesic. During the test, both the mirror and the optical bench were cooled to 18 K in a liquid-helium chamber. The test consisted of measuring the mirror's change of surface figure with an interferometer installed outside the cryo-chamber. The cryogenic deformation of the mirror was 110 nm RMS with no significant residual deformation after cooling, which is very promising for the applicability of the HB-Cesic composite to large lightweight cryogenic space optics.
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Affiliation(s)
- Hidehiro Kaneda
- Graduate School of Science, Nagoya University, Aichi 464-8602, Japan.
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39
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Abstract
A mechanism for creating amino acid enantiomerism that always selects the same large-scale chirality is identified, and subsequent chemical replication and galactic mixing that would populate the Galaxy with the predominant species is described. This involves (1) the spin of the 14N in the amino acids, or in precursor molecules from which amino acids might be formed, that couples to the chirality of the molecules; (2) the neutrinos emitted from the supernova, together with the magnetic field from the nascent neutron star or black hole formed from the supernova, which selectively destroy one orientation of the 14N and thus select the chirality associated with the other 14N orientation; (3) chemical evolution, by which the molecules replicate and evolve to more complex forms of a single chirality on a relatively short timescale; and (4) galactic mixing on a longer timescale that mixes the selected molecules throughout the Galaxy.
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Affiliation(s)
- R N Boyd
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
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40
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Uchida K, Kobayashi D, Das G, Onaka T, Inoue K, Itoi K. Participation of the prolactin-releasing peptide-containing neurones in caudal medulla in conveying haemorrhagic stress-induced signals to the paraventricular nucleus of the hypothalamus. J Neuroendocrinol 2010; 22:33-42. [PMID: 19912474 DOI: 10.1111/j.1365-2826.2009.01935.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The prolactin-releasing peptide (PrRP) has been proposed to be a co-transmitter or modulator of noradrenaline (NA) because it colocalises with NA in the A1 (in the ventrolateral reticular formation) and A2 (in the nucleus of the solitary tract; NTS) cell groups in the caudal medulla. The baroreceptor signals, originating from the great vessels, are transmitted primarily to the NTS, and then part of the signals is conveyed to the hypothalamic neuroendocrine neurones via the ascending NA neurones. The hypotensive haemorrhagic paradigm was employed to examine whether the PrRP-containing neurones in the caudal medulla participate in conveying signals to the hypothalamic neuroendocrine neurones. Among the caudal medullary A1 or A2 neurones, the majority of the PrRP-immunoreactive (-ir) neurones became c-Fos-ir at 2 h after hypotensive haemorrhage. Hypothalamic corticotrophin-releasing hormone-ir neurones and vasopressin-ir neurones became c-Fos positive in parallel with the activation of medullary PrRP-ir neurones. After delivery of retrograde tracer fluorogold (FG) to the paraventricular nucleus of the hypothalamus (PVN), part of the PrRP/FG double-labelled neurones in the A1 and A2 became c-Fos-ir after haemorrhage, demonstrating that PrRP-ir neurones participate in conveying the haemorrhagic stress-induced signals from the medulla to the PVN. PrRP and/or NA were microinjected directly to the PVN of conscious rats, and they presented a synergistic action on arginine vasopressin release, whereas an additive action was observed for adrenocorticotrophin release. These results suggest that the PrRP-containing NA neurones in the caudal medulla may relay the haemorrhagic stress-induced medullary inputs to the hypothalamic neuroendocrine neurones.
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Affiliation(s)
- K Uchida
- Laboratory of Information Biology, Graduate School of Information Sciences, Tohoku University, Aramaki-aza Aoba, Sendai, Japan
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Kato K, Kannan H, Ohta H, Kemuriyama T, Maruyama S, Tandai-Hiruma M, Sato Y, Nakazato M, Nishimori T, Ishida Y, Onaka T, Nishida Y. Central endogenous vasopressin induced by central salt-loading participates in body fluid homeostasis through modulatory effects on neurones of the paraventricular nucleus in conscious rats. J Neuroendocrinol 2009; 21:921-34. [PMID: 19732288 DOI: 10.1111/j.1365-2826.2009.01915.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Peripherally secreted arginine vasopressin (AVP) plays a role in controlling body fluid homeostasis, and central endogenous AVP acts as a neurotransmitter or neuromodulator. The limbic system, which appears to exert an inhibitory effect on the endocrine hypothalamus, is also innervated by fibres that contain AVP. We examined whether central endogenous AVP is also involved in the control of body fluid homeostasis. To explore this possibility, we examined neuronal activity in the paraventricular nucleus of the hypothalamus (PVN), periventricular parts of the PVN and limbic brain areas, as well as AVP mRNA expression in the PVN and the peripheral secretion of AVP after central salt-loading in rats that had been pretreated i.c.v. with the AVP V(1) receptor antagonist OPC-21268. Neuronal activity in the PVN evaluated in terms of Fos-like immunoreactivity (FLI), especially in the parvocellular subdivisions, was suppressed. On the other hand, FLI was enhanced in the lateral septum, the bed nucleus of the stria terminalis and the anterior hypothalamic area. Similarly, AVP mRNA expression was enhanced in the magnocellular subnucleus of the PVN, despite the lack of a significant difference in the peripheral AVP level between OPC-21268- and vehicle-pretreated groups. We recorded renal sympathetic nerve activity (RSNA) as sympathetic nerve outflow during central salt-loading. The suppression of RSNA was significantly attenuated by i.c.v. pretreatment with OPC-21268. These results suggest that the suppression of RSNA during central salt-loading might be the result of a decrease in neuronal activity in the parvocellular subdivisions of the PVN via the inhibitory action of central endogenous AVP. The parvocellular and magnocellular neurones in the PVN might show different responses to central salt-loading to maintain body fluid homeostasis as a result of the modulatory role of central endogenous AVP.
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Affiliation(s)
- K Kato
- Department of Physiology, National Defense Medical College, Saitama, Japan.
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Onaka T, Ozumi N, Yonezawa A, Imada K. [Successful treatment of refractory hairy cell leukemia with rituximab]. Nihon Naika Gakkai Zasshi 2009; 98:1987-1989. [PMID: 19764485 DOI: 10.2169/naika.98.1987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Takashi Onaka
- Department of Hematology, Kokura Memorial Hospital, Kitakyushu
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Yonezawa A, Onaka T, Imada K. [Cytomegalovirus-associated infectious mononucleosis-like syndrome accompanied by transient monoclonal expansion of CD8+ T-cells]. Rinsho Ketsueki 2009; 50:652-657. [PMID: 19915380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Most cases of infectious mononucleosis (IM) are caused by Epstein-Barr virus (EBV). Other pathogens have been reported to cause heterophile-negative mononucleosis-like syndrome, including cytomegalovirus (CMV) and human immunodeficiency virus type-1 (HIV-1). Primary CMV infection is often asymptomatic in immunocompetent individuals. In this article, we describe a patient with prolonged fever and fatigue, who developed transient monoclonal CD8+ T-cell lymphocytosis after primary CMV infection. Monoclonal gene rearrangement of T-cell receptor (TCR) beta locus was transiently detected in DNA from peripheral lymphocytes. Monoclonal rearrangement and atypical lymphocytosis disappeared after treatment with anti-viral agents. These observations imply that monoclonal expansion of T-cells could be a reactive phenomenon of primary CMV infection and TCR gene rearrangement is not specific for malignancy. Physicians should carefully follow patients with monoclonal expansion of CD8+ T-cells after CMV-IM in order to rule out T cell malignancy.
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Suzuki H, Onaka T, Kasai M, Kawasaki M, Ohnishi H, Otsubo H, Saito T, Hashimoto H, Yokoyama T, Fujihara H, Dayanithi G, Murphy D, Nakamura T, Ueta Y. Response of arginine vasopressin-enhanced green fluorescent protein fusion gene in the hypothalamus of adjuvant-induced arthritic rats. J Neuroendocrinol 2009; 21:183-90. [PMID: 19207829 DOI: 10.1111/j.1365-2826.2009.01818.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Arginine vasopressin (AVP) and corticotrophin-releasing hormone (CRH) in the parvocellular neurosecretory cells of the paraventricular nucleus (PVN) play a major role in activating the hypothalamic-pituitary-adrenal axis, which is the main neuroendocrine response against the many kinds of stress. We examined the effects of chronic inflammatory/nociceptive stress on the expression of the AVP-enhanced green fluorescent protein (eGFP) fusion gene in the hypothalamus, using the adjuvant arthritis (AA) model. To induce AA, the AVP-eGFP rats were intracutaneously injected heat-killed Mycobacterium butyricum (1 mg/rat) in paraffin liquid at the base of their tails. We measured AVP, oxytocin and corticosterone levels in plasma and changes in eGFP and CRH mRNA in the hypothalamus during the time course of AA development. Then, we examined eGFP fluorescence in the PVN, the supraoptic nucleus (SON), median eminence (ME) and posterior pituitary gland (PP) when AA was established. The plasma concentrations of AVP, oxytocin and corticosterone were significantly increased on days 15 and 22 in AA rats, without affecting the plasma osmolality and sodium. Although CRH mRNA levels in the PVN were significantly decreased, eGFP mRNA levels in the PVN and the SON were significantly increased on days 15 and 22 in AA rats. The eGFP fluorescence in the SON, the PVN, internal and external layers of the ME and PP was apparently increased in AA compared to control rats. These results suggest that the increases in the concentrations of ACTH and corticosterone in AA rats are induced by hypothalamic AVP, based on data from AVP-eGFP transgenic rats.
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Affiliation(s)
- H Suzuki
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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Yoshii T, Sakamoto H, Kawasaki M, Ozawa H, Ueta Y, Onaka T, Fukui K, Kawata M. The single-prolonged stress paradigm alters both the morphology and stress response of magnocellular vasopressin neurons. Neuroscience 2008; 156:466-74. [PMID: 18723079 DOI: 10.1016/j.neuroscience.2008.07.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Revised: 07/11/2008] [Accepted: 07/17/2008] [Indexed: 10/21/2022]
Abstract
Vasopressin (AVP) plays an important role in anxiety-related and social behaviors. Single-prolonged stress (SPS) has been established as an animal acute severe stress model and has been shown to induce a lower adrenocorticotropic hormone (ACTH) response upon cortisol challenge. Here, we show results from immunoassays for AVP, ACTH, and corticosterone (CORT), and in situ hybridizations for AVP mRNA performed 7 days after SPS exposure. Immunofluorescence for AVP was also performed during the 7-day period following SPS exposure and after an additional forced swimming stress paradigm. We observed that the plasma concentrations of AVP, ACTH, and CORT were not altered by SPS; ACTH content in the pituitary and AVP mRNA expression in the supraoptic nucleus (SON) were significantly reduced by SPS. During the 7-day period following SPS, the intensity of immunoreactivity, the size of the soma, and the immunoreactive optical density of the dendrites of AVP neurons in the SON all increased. An apparent reduction in the intensity of AVP immunoreactivity was observed in the SON at 4 h after additional stress. Additional forced swimming led to a rapid increase in the dendritic AVP content only in the controls and not in the SPS-treated rats. These findings suggest that AVP is a potential biomarker for past exposure to severe stress and that alterations in AVP may affect the development of pathogenesis in stress-related disorders.
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Affiliation(s)
- T Yoshii
- Department of Psychiatry, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kawaramachi-Hirokoji, Kyoto 602-8566, Japan
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Sako S, Miyata T, Nakamura T, Onaka T, Ikeda Y, Kataza H. Developing metal mesh filters for mid-infrared astronomy of 25 to 40 micron. ACTA ACUST UNITED AC 2008. [DOI: 10.1117/12.788510] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Kaneda H, Nakagawa T, Onaka T, Enya K, Makiuti S, Takaki J, Haruna M, Kume M, Ozaki T. Cryogenic optical measurements of 12-segment-bonded carbon-fiber-reinforced silicon carbide composite mirror with support mechanism. Appl Opt 2008; 47:1122-1128. [PMID: 18327285 DOI: 10.1364/ao.47.001122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A 720 mm diameter 12-segment-bonded carbon-fiber-reinforced silicon carbide (C/SiC) composite mirror has been fabricated and tested at cryogenic temperatures. Interferometric measurements show significant cryogenic deformation of the C/SiC composite mirror, which is well reproduced by a model analysis with measured properties of the bonded segments. It is concluded that the deformation is due mostly to variation in coefficients of thermal expansion among segments. In parallel, a 4-degree-of-freedom ball-bearing support mechanism has been developed for cryogenic applications. The C/SiC composite mirror was mounted on an aluminum base plate with the support mechanism and tested again. Cryogenic deformation of the mirror attributed to thermal contraction of the aluminum base plate via the support mechanism is highly reduced by the support, confirming that the newly developed support mechanism is promising for its future application to large-aperture cooled space telescopes.
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Affiliation(s)
- Hidehiro Kaneda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa 229-8510, Japan.
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Ikewaki N, Fujii N, Onaka T, Ikewaki S, Inoko H. Immunological actions of Sophy beta-glucan (beta-1,3-1,6 glucan), currently available commercially as a health food supplement. Microbiol Immunol 2008; 51:861-73. [PMID: 17895603 DOI: 10.1111/j.1348-0421.2007.tb03982.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We examined the immunological actions of Sophy beta-glucan(Ikewaki N., et al. United States Patent 6956120 and Japan Patent 2004-329077), a type of beta-1,3-1,6 glucan produced by the black yeast Aureobasidium pullulans (A. pullulans) strain AFO-202, currently available commercially as a health food supplement, using different human in vitro experimental systems. Sophy beta-glucan significantly (P<0.01) stimulated the (3)H-thymidine incorporation rates (marker of DNA synthesis) in human peripheral blood mononuclear cells (PBMCs) obtained from normal adult donors, in vitro. Enzyme-linked immunoassays (EIAs) revealed that Sophy beta-glucan stimulated the production of interleukin-8 (IL-8) or soluble Fas (sFas), but not that of IL-1beta, IL-2, IL-6, IL-12 (p70+40), interferon-gamma (IFN-gamma), tumor necrosis factor-alpha (TNF-alpha) or soluble Fas ligand (sFasL), in either cultured PBMCs or cells of the human monocyte-like cell line, U937. The induction by Sophy beta-glucan of DNA synthesis in PBMCs was completely blocked by the addition of monoclonal antibodies (mAbs) to CD11a, CD54, human leukocyte antigen-class II (HLA-class II), Toll-like receptor-2 (TLR-2), and Toll-like receptor-4 (TLR-4). In these blocking experiments using the mAbs, the main differences in the results between PBMCs and U937 cells were that the mAbs against TLR-2 and TLR-4 did not block the Sophy beta-glucan-induced production of IL-8 in the U937 cells. Furthermore, a mAb to the beta-glucan receptor, Dectin-1, significantly (P<0.05) blocked the Sophy beta-glucan induced DNA synthesis in the PBMCs, and Sophy beta-glucan-induced production of IL-8 in the U937 cells. The Sophy beta-glucan-induced production of IL-8 in the U937 cells was significantly (P<0.01) blocked by the conventional protein kinase C (PKC) inhibitor Go6976, the novel PKC inhibitor Rottlerin, the protein kinase A (PKA) inhibitor H-89, and the protein tyrosine kinase (PTK) inhibitor herbimycin A. Among these, the blocking effect of the novel PKC (PKC delta isoenzyme) inhibitor Rottlerin was the most pronounced. Studies employing reverse transcriptase-polymerase chain reaction (RT-PCR) showed that Sophy beta-glucan stimulated the expression of IL-8 mRNA in the U937 cells, and that this induction was inhibited by Rottlerin. Sophy beta-glucan also blocked the stimulator cell induction of DNA synthesis and IFN-gamma production in the responder cells in a one-way mixed lymphocyte reaction (MLR) using allogenic PBMCs. Interestingly, immunoglobulin G (IgG), but not IgM to Sophy beta-glucan was detected in the sera derived from normal adult donors and from the umbilical cord blood of neonates. Taken together, these findings strongly suggest that the Sophy beta-glucan may have unique immune regulatory or enhancing properties that could be exploited by the health food, medical and pharmaceutical industries.
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Affiliation(s)
- Nobunao Ikewaki
- Kyushu University of Health and Welfare School of Health Science, and Institute of Immunology, Takahashi Educational Institute, Nobeoka, Miyazaki, Japan.
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Saito T, Dayanithi G, Saito J, Onaka T, Urabe T, Watanabe TX, Hashimoto H, Yokoyama T, Fujihara H, Yokota A, Nishizawa S, Hirata Y, Ueta Y. Chronic osmotic stimuli increase salusin-beta-like immunoreactivity in the rat hypothalamo-neurohypophyseal system: possible involvement of salusin-beta on [Ca2+]i increase and neurohypophyseal hormone release from the axon terminals. J Neuroendocrinol 2008; 20:207-19. [PMID: 18047553 DOI: 10.1111/j.1365-2826.2007.01632.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Salusin-alpha and -beta were recently discovered as bioactive endogenous peptides. In the present study, we investigated the effects of chronic osmotic stimuli on salusin-beta-like immunoreactivity (LI) in the rat hypothalamo-neurohypophyseal system. We examined the effects of salusin-beta on synaptic inputs to the rat magnocellular neurosecretory cells (MNCs) of the supraoptic nucleus (SON) and neurohypophyseal hormone release from both freshly dissociated SONs and neurohypophyses in rats. Immunohistochemical studies revealed that salusin-beta-LI neurones and fibres were markedly increased in the SON and the magnocellular division of the paraventricular nucleus after chronic osmotic stimuli resulting from salt loading for 5 days and dehydration for 3 days. Salusin-beta-LI fibres and varicosities in the internal zone of the median eminence and the neurohypophysis were also increased after osmotic stimuli. Whole-cell patch-clamp recordings from rat SON slice preparations showed that salusin-beta did not cause significant changes in the excitatory and inhibitory postsynaptic currents of the MNCs. In vitro hormone release studies showed that salusin-beta evoked both arginine vasopressin (AVP) and oxytocin release from the neurohypophysis, but not the SON. In our hands, in the neurohypophysis, a significant release of AVP and oxytocin was observed only at concentrations from 100 nm and above of salusin-beta. Low concentrations below 100 nm were ineffective both on AVP and oxytocin release. We also measured intracellular calcium ([Ca(2+)](i)) increase induced by salusin-beta on freshly-isolated single nerve terminals from the neurohypophysis devoid of pars intermedia. Furthermore, this salusin-beta-induced [Ca(2+)](i) increase was blocked in the presence of high voltage activated Ca(2+)channel blockers. Our results suggest that salusin-beta may be involved in the regulation of body fluid balance by stimulating neurohypophyseal hormone release from nerve endings by an autocrine/paracrine mechanism.
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Affiliation(s)
- T Saito
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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Shimosako J, Onaka T, Yamanouchi M, Yokota M, Nakamura T, Fujii F, Matsumoto E, Shibata H, Fukuda M, Tanaka T. An outbreak of extended-spectrum beta-lactamase (ESBL)-producing Shigella sonnei at a day care nursery in Sakai City, 2006. Jpn J Infect Dis 2007; 60:408-409. [PMID: 18032848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Affiliation(s)
- Junko Shimosako
- Sakai City Institute of Public Health, Osaka 590-0953, Japan
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