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Hirata K, Yamamoto Y, Hatanaka K, Kinoshita K, Abiko S, Suzuki K, Tanaka T, Ishibe E, Nakajima K, Naruse H, Umehara M, Tsuruga Y, Nakanishi K, Munakata S, Shimoyama N. Hepatobiliary and pancreatic: Tiny pigmented intra-hepatic ducts stones as the cause of jaundice and liver failure. J Gastroenterol Hepatol 2023; 38:2052. [PMID: 37680105 DOI: 10.1111/jgh.16350] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/26/2023] [Accepted: 08/26/2023] [Indexed: 09/09/2023]
Affiliation(s)
- K Hirata
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Yamamoto
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Hatanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Kinoshita
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Abiko
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Suzuki
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - T Tanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - E Ishibe
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakajima
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - H Naruse
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - M Umehara
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Tsuruga
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakanishi
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Munakata
- Department of Cancer Pathology, Hakodate Municipal Hospital, Hakodate, Japan
| | - N Shimoyama
- Department of Cancer Pathology, Hakodate Municipal Hospital, Hakodate, Japan
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Robinson ML, Hahn PG, Inouye BD, Underwood N, Whitehead SR, Abbott KC, Bruna EM, Cacho NI, Dyer LA, Abdala-Roberts L, Allen WJ, Andrade JF, Angulo DF, Anjos D, Anstett DN, Bagchi R, Bagchi S, Barbosa M, Barrett S, Baskett CA, Ben-Simchon E, Bloodworth KJ, Bronstein JL, Buckley YM, Burghardt KT, Bustos-Segura C, Calixto ES, Carvalho RL, Castagneyrol B, Chiuffo MC, Cinoğlu D, Cinto Mejía E, Cock MC, Cogni R, Cope OL, Cornelissen T, Cortez DR, Crowder DW, Dallstream C, Dáttilo W, Davis JK, Dimarco RD, Dole HE, Egbon IN, Eisenring M, Ejomah A, Elderd BD, Endara MJ, Eubanks MD, Everingham SE, Farah KN, Farias RP, Fernandes AP, Fernandes GW, Ferrante M, Finn A, Florjancic GA, Forister ML, Fox QN, Frago E, França FM, Getman-Pickering AS, Getman-Pickering Z, Gianoli E, Gooden B, Gossner MM, Greig KA, Gripenberg S, Groenteman R, Grof-Tisza P, Haack N, Hahn L, Haq SM, Helms AM, Hennecke J, Hermann SL, Holeski LM, Holm S, Hutchinson MC, Jackson EE, Kagiya S, Kalske A, Kalwajtys M, Karban R, Kariyat R, Keasar T, Kersch-Becker MF, Kharouba HM, Kim TN, Kimuyu DM, Kluse J, Koerner SE, Komatsu KJ, Krishnan S, Laihonen M, Lamelas-López L, LaScaleia MC, Lecomte N, Lehn CR, Li X, Lindroth RL, LoPresti EF, Losada M, Louthan AM, Luizzi VJ, Lynch SC, Lynn JS, Lyon NJ, Maia LF, Maia RA, Mannall TL, Martin BS, Massad TJ, McCall AC, McGurrin K, Merwin AC, Mijango-Ramos Z, Mills CH, Moles AT, Moore CM, Moreira X, Morrison CR, Moshobane MC, Muola A, Nakadai R, Nakajima K, Novais S, Ogbebor CO, Ohsaki H, Pan VS, Pardikes NA, Pareja M, Parthasarathy N, Pawar RR, Paynter Q, Pearse IS, Penczykowski RM, Pepi AA, Pereira CC, Phartyal SS, Piper FI, Poveda K, Pringle EG, Puy J, Quijano T, Quintero C, Rasmann S, Rosche C, Rosenheim LY, Rosenheim JA, Runyon JB, Sadeh A, Sakata Y, Salcido DM, Salgado-Luarte C, Santos BA, Sapir Y, Sasal Y, Sato Y, Sawant M, Schroeder H, Schumann I, Segoli M, Segre H, Shelef O, Shinohara N, Singh RP, Smith DS, Sobral M, Stotz GC, Tack AJM, Tayal M, Tooker JF, Torrico-Bazoberry D, Tougeron K, Trowbridge AM, Utsumi S, Uyi O, Vaca-Uribe JL, Valtonen A, van Dijk LJA, Vandvik V, Villellas J, Waller LP, Weber MG, Yamawo A, Yim S, Zarnetske PL, Zehr LN, Zhong Z, Wetzel WC. Plant size, latitude, and phylogeny explain within-population variability in herbivory. Science 2023; 382:679-683. [PMID: 37943897 DOI: 10.1126/science.adh8830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 09/27/2023] [Indexed: 11/12/2023]
Abstract
Interactions between plants and herbivores are central in most ecosystems, but their strength is highly variable. The amount of variability within a system is thought to influence most aspects of plant-herbivore biology, from ecological stability to plant defense evolution. Our understanding of what influences variability, however, is limited by sparse data. We collected standardized surveys of herbivory for 503 plant species at 790 sites across 116° of latitude. With these data, we show that within-population variability in herbivory increases with latitude, decreases with plant size, and is phylogenetically structured. Differences in the magnitude of variability are thus central to how plant-herbivore biology varies across macroscale gradients. We argue that increased focus on interaction variability will advance understanding of patterns of life on Earth.
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Affiliation(s)
- M L Robinson
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Department of Biology, Utah State University, Logan, UT, USA
| | - P G Hahn
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - B D Inouye
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - N Underwood
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - S R Whitehead
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - K C Abbott
- Department of Biology, Case Western Reserve University, Cleveland, OH, USA
| | - E M Bruna
- Center for Latin American Studies, University of Florida, Gainesville, FL, USA
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
| | - N I Cacho
- Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - L A Dyer
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - L Abdala-Roberts
- Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - W J Allen
- Bio-Protection Research Centre, University of Canterbury, Christchurch, New Zealand
| | - J F Andrade
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba, João Pessoa, Brazil
| | - D F Angulo
- Centro de Investigación Científica de Yucatán, Departamento de Recursos Naturales, Mérida, Yucatán, México
| | - D Anjos
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - D N Anstett
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
| | - R Bagchi
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - S Bagchi
- Centre for Ecological Sciences, Indian Institute of Science, Bangalore, Karnataka, India
| | - M Barbosa
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - S Barrett
- Department of Biodiversity Conservation & Attractions Western Australia, Albany, Western Australia, Australia
| | - C A Baskett
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - E Ben-Simchon
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
- Robert H. Smith Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - K J Bloodworth
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - J L Bronstein
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - Y M Buckley
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
| | - K T Burghardt
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - C Bustos-Segura
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - E S Calixto
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - R L Carvalho
- Institute of Advanced Studies, University of São Paulo, São Paulo, Brazil
| | | | - M C Chiuffo
- Grupo de Ecología de Invasiones, INIBIOMA, Universidad Nacional del Comahue, CONICET, San Carlos de Bariloche, Río Negro, Argentina
| | - D Cinoğlu
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - E Cinto Mejía
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - M C Cock
- Facultad de Ciencias Exactas y Naturales, Instituto de Ciencias de la Tierra y Ambientales de La Pampa, Santa Rosa, La Pampa, Argentina
| | - R Cogni
- Department of Ecology, University of São Paulo, São Paulo, Brazil
| | - O L Cope
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Department of Biology, Whitworth University, Spokane, WA, USA
| | - T Cornelissen
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - D R Cortez
- Department of Biology, California State University San Bernardino, San Bernardino, CA, USA
| | - D W Crowder
- Department of Entomology, Washington State University, Pullman, WA, USA
| | - C Dallstream
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - W Dáttilo
- Red de Ecoetología, Instituto de Ecología AC, Xalapa, Veracruz, Mexico
| | - J K Davis
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - R D Dimarco
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
- Grupo de Ecología de Poblaciones de Insectos, IFAB, San Carlos de Bariloche, Río Negro, Argentina
| | - H E Dole
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - I N Egbon
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
| | - M Eisenring
- Forest Entomology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - A Ejomah
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
| | - B D Elderd
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - M-J Endara
- Grupo de Investigación en Ecología y Evolución en los Trópicos-EETROP, Universidad de las Américas, Quito, Ecuador
| | - M D Eubanks
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - S E Everingham
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - K N Farah
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - R P Farias
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia, Brasil
| | - A P Fernandes
- Department of Botany, Ganpat Parsekar College of Education Harmal, Pernem, Goa, India
| | - G W Fernandes
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Knowledge Center for Biodiversity, Brazil
| | - M Ferrante
- Faculty of Agricultural Sciences and Environment, University of the Azores, Ponta Delgada, Portugal
- Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | - A Finn
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
| | - G A Florjancic
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - M L Forister
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - Q N Fox
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - E Frago
- CIRAD, UMR CBGP, INRAE, Institut Agro, IRD, Université Montpellier, Montpellier, France
| | - F M França
- School of Biological Sciences, University of Bristol, Bristol, UK
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Pará, Belém, Pará, Brasil
| | | | - Z Getman-Pickering
- Department of Mechanical and Industrial Engineering, University of Massachusetts Amherst, Amherst, MA, USA
| | - E Gianoli
- Departamento de Biología, Universidad de La Serena, La Serena, Chile
| | - B Gooden
- CSIRO Black Mountain Laboratories, CSIRO Health and Biosecurity, Canberra, Australia
| | - M M Gossner
- Forest Entomology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
- Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
| | - K A Greig
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - S Gripenberg
- School of Biological Sciences, University of Reading, Reading, UK
| | - R Groenteman
- Manaaki Whenua - Landcare Research, Lincoln, New Zealand
| | - P Grof-Tisza
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - N Haack
- Independent Institute for Environmental Issues, Halle, Germany
| | - L Hahn
- Molecular Evolution and Systematics of Animals, University of Leipzig, Leipzig, Germany
| | - S M Haq
- Wildlife Crime Control Division, Wildlife Trust of India, Noida, Uttar Pradesh, India
| | - A M Helms
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - J Hennecke
- Systematic Botany and Functional Biodiversity, Leipzig University, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
| | - S L Hermann
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - L M Holeski
- Department of Biological Sciences and Center for Adaptive Western Landscapes, Northern Arizona University, Flagstaff, AZ, USA
| | - S Holm
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
- Department of Zoology, University of Tartu, Tartu, Estonia
| | - M C Hutchinson
- Department of Life and Environmental Sciences, University of California, Merced, Merced, CA, USA
| | - E E Jackson
- School of Biological Sciences, University of Reading, Reading, UK
| | - S Kagiya
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - A Kalske
- Department of Biology, University of Turku, Turku, Finland
| | - M Kalwajtys
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - R Karban
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - R Kariyat
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - T Keasar
- Department of Biology and the Environment, University of Haifa - Oranim, Oranim, Tivon, Israel
| | - M F Kersch-Becker
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - H M Kharouba
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - T N Kim
- Department of Entomology, Kansas State University, Manhattan, KS, USA
| | - D M Kimuyu
- Department of Natural Resources, Karatina University, Karatina, Kenya
| | - J Kluse
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - S E Koerner
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - K J Komatsu
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
- Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - S Krishnan
- Center for Sustainable Future, Amrita University and EIACP RP, Amrita Viswa Vidyapeetham, Coimbatore, India
| | - M Laihonen
- Biodiversity Unit, University of Turku, Turku, Finland
| | - L Lamelas-López
- Faculty of Agricultural Sciences and Environment, University of the Azores, Ponta Delgada, Portugal
| | - M C LaScaleia
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - N Lecomte
- Canada Research Chair in Polar and Boreal Ecology, Department of Biology and Centre d'Études Nordiques, Université de Moncton, Moncton, Canada
| | - C R Lehn
- Biological Sciences Course, Instituto Federal Farroupilha, Panambi, RS, Brazil
| | - X Li
- College of Resources and Environmental sciences, Jilin Agricultural University, Changchun, China
| | - R L Lindroth
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - E F LoPresti
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA
| | - M Losada
- Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - A M Louthan
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - V J Luizzi
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - S C Lynch
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - J S Lynn
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Department of Earth and Environmental Sciences, University of Manchester, Manchester, UK
| | - N J Lyon
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - L F Maia
- Bio-Protection Research Centre, University of Canterbury, Christchurch, New Zealand
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - R A Maia
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - T L Mannall
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - B S Martin
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
| | - T J Massad
- Department of Scientific Services, Gorongosa National Park, Sofala, Mozambique
| | - A C McCall
- Biology Department, Denison University, Granville, OH, USA
| | - K McGurrin
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - A C Merwin
- Department of Biology and Geology, Baldwin Wallace University, Berea, OH, USA
| | - Z Mijango-Ramos
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - C H Mills
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - A T Moles
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - C M Moore
- Department of Biology, Colby College, Waterville, ME, USA
| | - X Moreira
- Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas, Pontevedra, Galicia, Spain
| | - C R Morrison
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - M C Moshobane
- South African National Biodiversity Institute, Pretoria National Botanical Garden, Brummeria, Silverton, South Africa
- Centre for Functional Biodiversity, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - A Muola
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Tromsø, Norway
| | - R Nakadai
- Faculty of Environment and Information Sciences, Yokohama National University, Yokohama, Kanagawa, Japan
| | - K Nakajima
- Insitute of Science and Engineering, Chuo University, Tokyo, Japan
- Institute of Cave Research, Shimohei-guun, Iwate Prefecture, Japan
| | - S Novais
- Red de Interacciones Multitróficas, Instituto de Ecología A.C., Xalapa, Veracruz, Mexico
| | - C O Ogbebor
- Nigerian Institute for Oil Palm Research, Benin City, Edo State, Nigeria
| | - H Ohsaki
- Department of Biological Sciences, Hirosaki University, Hirosaki, Aomori, Japan
| | - V S Pan
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
| | - N A Pardikes
- Department of Biology, Utah State University, Logan, UT, USA
| | - M Pareja
- Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, Brazil
| | - N Parthasarathy
- Department of Ecology and Evironmental Sciences, Pondicherry University, Puducherry, India
| | | | - Q Paynter
- Manaaki Whenua - Landcare Research, Auckland, New Zealand
| | - I S Pearse
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO, USA
| | - R M Penczykowski
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - A A Pepi
- Department of Biology, Tufts University, Medford, MA, USA
| | - C C Pereira
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - S S Phartyal
- School of Ecology & Environment Studies, Nalanda University, Rajgir, India
| | - F I Piper
- Millennium Nucleus of Patagonian Limit of Life and Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
- Institute of Ecology and Biodiversity, Ñuñoa, Santiago
| | - K Poveda
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - E G Pringle
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - J Puy
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas, Sevilla, Spain
| | - T Quijano
- Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - C Quintero
- INIBIOMA, CONICET - Universidad Nacional del Comahue, San Carlos de Bariloche, Río Negro, Argentina
| | - S Rasmann
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - C Rosche
- German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
- Institute of Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - L Y Rosenheim
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - J A Rosenheim
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - J B Runyon
- Rocky Mountain Research Station, USDA Forest Service, Bozeman, MT, USA
| | - A Sadeh
- Department of Natural Resources, Newe Ya'ar Research Center, Volcani Institute, Ramat Yishay, Israel
| | - Y Sakata
- Department of Biological Environment, Akita Prefectural University, Shimoshinjyo-Nakano, Akita, Japan
| | - D M Salcido
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - C Salgado-Luarte
- Instituto de Investigación Multidisciplinario en Ciencia y Tecnología, Universidad de La Serena, La Serena, Chile
| | - B A Santos
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Y Sapir
- The Botanic Garden, School of Plant Sciences and Food Security, Faculty of Life Science, Tel Aviv University, Tel Aviv, Israel
| | - Y Sasal
- INIBIOMA, CONICET - Universidad Nacional del Comahue, San Carlos de Bariloche, Río Negro, Argentina
| | - Y Sato
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - M Sawant
- Department of Ecology, University of Pune, Maharashtra, India
| | - H Schroeder
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - I Schumann
- Department of Human Genetics, University of Leipzig, Leipzig, Germany
| | - M Segoli
- Mitrani Department of Desert Ecology, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
| | - H Segre
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
- Robert H. Smith Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
- Department of Natural Resources, Newe Ya'ar Research Center, Volcani Institute, Ramat Yishay, Israel
| | - O Shelef
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
| | - N Shinohara
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - R P Singh
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - D S Smith
- Department of Biology, California State University San Bernardino, San Bernardino, CA, USA
| | - M Sobral
- Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - G C Stotz
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - A J M Tack
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - M Tayal
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - J F Tooker
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - D Torrico-Bazoberry
- Laboratorio de Comportamiento Animal y Humano, Centro de Investigación en Complejidad Social, Universidad del Desarrollo, Las Condes, Chile
| | - K Tougeron
- Écologie et Dynamique des Systèmes Anthropisés, Université de Picardie Jules Verne, UMR 7058 CNRS, Amiens, France
- Ecology of Interactions and Global Change, Institut de Recherche en Biosciences, Université de Mons, Mons, Belgium
| | - A M Trowbridge
- Department of Forest and Wildlife Ecology, University of Wisconsin, Madison, WI, USA
| | - S Utsumi
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - O Uyi
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
- Department of Entomology, University of Georgia, Tifton, GA, USA
| | - J L Vaca-Uribe
- Programa de ingeniría agroecológica, Corporación Universitaria Minuto de Dios, Bogotá, Colombia
| | - A Valtonen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
| | - L J A van Dijk
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden
| | - V Vandvik
- Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - J Villellas
- Department of Life Sciences, University of Alcalá, Madrid, Spain
| | - L P Waller
- Bioprotection Aotearoa, Lincoln University, Lincoln, New Zealand
| | - M G Weber
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - A Yamawo
- Department of Biological Sciences, Hirosaki University, Hirosaki, Aomori, Japan
- Center for Ecological Research, Kyoto University, Otsu, Japan
| | - S Yim
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - P L Zarnetske
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
| | - L N Zehr
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Z Zhong
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education/Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, Jilin Province, China
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Beijing, China
| | - W C Wetzel
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
- W.K. Kellogg Biological Station, Michigan State University, Hickory Corners, MI, USA
- Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, USA
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3
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Iwata H, Oguri M, Hattori Y, Nakajima K, Tsuzuki Y, Hayashi K, Toshito T, Umemoto Y, Ogino H, Hiwatashi A. Phase II Clinical Trial of Hypofractionated Image-Guided Proton Therapy with 12 Fractions for Prostate Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e395-e396. [PMID: 37785323 DOI: 10.1016/j.ijrobp.2023.06.1522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Towards hypofractionated proton therapy for prostate cancer for improving convenience for patients to receive treatment and improving therapeutic efficacy, image-guided technique with hydrogel spacer solved the late gastrointestinal toxicity, but it is unclear whether acute genitourinary (GU) toxicity is acceptable. The aim of this phase II study was to evaluate the safety and efficacy of hypofractionated image-guided proton therapy (IGPT) with 12 fractions for prostate cancer. MATERIALS/METHODS Eligibility criteria were as follows: (1) histologically confirmed primary prostate cancer; (2) T1-T3bN0M0 staged by (UICC TNM8th); (3) ECOG-PS ≤ 2; (4) age ≥ 20 years; (5) no serious underlying disease or other cancers; (6) technically capable of proton therapy, and (7) written informed consent. Primary endpoint was the ratio of grade 2 or more acute genitourinary toxicity. We used the modified CTCAE grading of grade 2 GU toxicities, in which prescribing two and more types of drugs for dysuria within 3 months of the start of radiation was considered to indicate grade 2 GU toxicity. A phase II trial was planned based on the minimax Simon's two-stage design with a significance level of 0.05 and a power of 90%. The acceptable incidence is considered to be less than 5%, and the unacceptable incidence is considered to be more than 15%. A total of 83 patients is required for completion of the trial (7 patients or fewer). After evaluating the primary endpoint in 83 patients, 217 additional patients were registered and a total of 300 patients were registered in order to further examine the safety and efficacy. The prescribed dose to the isocenter was 51.6 GyRBE in 12 fractions (4 days a week). RESULTS From January 2020 to March 2021, 30, 53, and 217 patients (total 300) were enrolled. The patient characteristics were as follows: median age, 70 (48-83) years; low/intermediate/high risk, 44/132/124. Forty-nine and 38 patients had benign prostatic hyperplasia and diabetes mellitus, respectively. Grade 2 acute GU toxicities were observed in 1, 5 and 13 patients, respectively (total 6.3%). No grade 3 or higher acute GU toxicities were observed. However, urinary retention during IGPT, which was not previously observed, was observed in 3 cases, and temporary urethral catheterization was performed (Grade 2). Most of the acute GU toxicity tended to improve at 1 month after IGPT, and almost improved at 3 months. Mean score deteriorations beyond the minimum clinically important difference threshold (1/2 SD) were observed only at 1 month in the following scales: summary (-6.0), bother (-7.0), and irritative/obstructive (-6.3). CONCLUSION Hypofractionated IGPT with 12 fractions for prostate cancer is well tolerated in acute GU toxicities. Longer follow-up is necessary to evaluate the efficacy and late toxicities. Further investigation of hypofractionated IGPT with 12 fractions for prostate cancer is warranted. Since April 2021, an additional 1000 cases of prospective registration study have been conducted.
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Affiliation(s)
- H Iwata
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - M Oguri
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Y Hattori
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - K Nakajima
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Y Tsuzuki
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - K Hayashi
- Department of Proton Therapy Technology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - T Toshito
- Department of Proton Therapy Physics, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - Y Umemoto
- Department of Nephro-Urology, Nagoya City University West Medical Center, Nagoya, Japan
| | - H Ogino
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - A Hiwatashi
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Saito T, Shikama N, Takahashi T, Nakamura N, Aoyama H, Nakajima K, Koizumi M, Sekii S, Ebara T, Kiyohara H, Higuchi K, Yorozu A, Nishimura T, Ejima Y, Harada H, Araki N, Miwa M, Yamada K, Kawamoto T, Onishi H, Imano N. Quality of Palliative Radiation Therapy Assessed Using Quality Indicators: A Multicenter Survey. Int J Radiat Oncol Biol Phys 2023; 117:e111. [PMID: 37784649 DOI: 10.1016/j.ijrobp.2023.06.890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Clinical practice is not always performed in accordance with guideline recommendations. Quality indicators (QIs) are valuable tools for evaluating the quality of healthcare systems. We sought to identify potential gaps between clinical practice and evidence using QIs previously developed using a modified Delphi method. MATERIALS/METHODS We used seven QIs (Table 1) to assess the quality of radiation therapy for bone (BoM) and brain metastases (BrM) at 29 centers; 13 (45%) were academic (12 university hospitals and 1 cancer center) and 16 (55%) were nonacademic hospitals. Compliance rate was calculated as the percentage of patients for whom recommended medical care was conducted. Random effects models were used to estimate pooled compliance rates. Mixed effects models with a Q test were used to compare compliance rates between academic and nonacademic centers. RESULTS The estimates of the compliance rates with 95% confidence intervals are presented in Table 1. For BoM-1, the compliance rate was higher in academic hospitals (100% [100-100%]) than in non-academic hospitals (96% [89-100%]) (P = 0.021). For BrM-3, the compliance rate was lower in academic hospitals (92% [81-99%]) than in nonacademic hospitals (100% [98-100%]) (P = 0.016). CONCLUSION A quality assessment based on these seven QIs is feasible. Overall, compliance rates were high; however, for BoM-3, the practice remains to be improved in some centers. Based on BoM-4 compliance rates, steroids are infrequently used concurrently with radiation therapy for malignant spinal cord compression. Extended fractionation for BoM was less frequently performed in academic than in nonacademic centers. The initiation of radiation therapy for brain metastases was more frequently delayed in academic than in nonacademic centers.
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Affiliation(s)
- T Saito
- Department of Radiation Oncology, Arao Municipal Hospital, Kumamoto, Japan
| | - N Shikama
- Division of Radiation Oncology, Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan
| | - T Takahashi
- Department of Radiation Oncology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - N Nakamura
- Department of Radiation Oncology, St. Marianna University School of Medicine, Kanagawa, Japan
| | - H Aoyama
- Department of Radiation Oncology, Faculty and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - K Nakajima
- Asahikawa Medical College, Asahikawa, Japan
| | - M Koizumi
- Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - S Sekii
- Kita-Harima Medical Center, Hyogo, Japan
| | - T Ebara
- Department of Radiation Oncology, Kyorin University, Mitaka, Tokyo, Japan
| | - H Kiyohara
- Department of Radiation Oncology, Japanese Red Cross Maebashi Hospital, Gunma, Japan
| | - K Higuchi
- Department of Radiation Oncology, Isesaki Municipal Hospital, Gunma, Japan
| | - A Yorozu
- Department of Radiation Oncology, National Hospital Organization, Tokyo Medical Center, Tokyo, Japan
| | - T Nishimura
- Department of Radiology, Fukuchiyama City Hospital, Kyoto, Japan
| | - Y Ejima
- Department of Radiology, Dokkyo Medical University, Koshigaya, Japan
| | - H Harada
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - N Araki
- Department of Radiology, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Miwa
- Department of Radiation Oncology, Sendai Kousei Hospital, Sendai, Japan
| | - K Yamada
- Department of Radiation Oncology, Seirei Mikatahara General Hospital, Hamamatsu, Japan
| | - T Kawamoto
- Division of Radiation Oncology, Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan
| | - H Onishi
- University of Yamanashi, Chuo, Japan
| | - N Imano
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
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Horino T, Osakabe Y, Ishihara M, Nakajima K, Terada Y. Nephrotic syndrome caused by IgA vasculitis flare up following COVID-19 vaccination. QJM 2023; 116:556-558. [PMID: 36919781 PMCID: PMC10382190 DOI: 10.1093/qjmed/hcad040] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 03/12/2023] [Indexed: 03/16/2023] Open
Affiliation(s)
- T Horino
- Department of Endocrinology, Metabolism, and Nephrology, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan
| | - Y Osakabe
- Department of Endocrinology, Metabolism, and Nephrology, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan
| | - M Ishihara
- Department of Paediatrics, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan
| | - K Nakajima
- Department of Dermatology, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan
| | - Y Terada
- Department of Endocrinology, Metabolism, and Nephrology, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan
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6
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Ouchi T, Kato N, Kato H, Higashigawa T, Ito H, Nakajima K, Chino S, Tokui T, Oue K, Mizumoto T, Sakuma H. Abstract No. 503 Machine Learning Model to Predict Mid-Term All-Cause Mortality after Elective Thoracic Endovascular Aortic Repair for Thoracic Aortic Aneurysm. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.361] [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: 02/26/2023] Open
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7
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Cassinotti E, Al-Taher M, Antoniou SA, Arezzo A, Baldari L, Boni L, Bonino MA, Bouvy ND, Brodie R, Carus T, Chand M, Diana M, Eussen MMM, Francis N, Guida A, Gontero P, Haney CM, Jansen M, Mintz Y, Morales-Conde S, Muller-Stich BP, Nakajima K, Nickel F, Oderda M, Parise P, Rosati R, Schijven MP, Silecchia G, Soares AS, Urakawa S, Vettoretto N. European Association for Endoscopic Surgery (EAES) consensus on Indocyanine Green (ICG) fluorescence-guided surgery. Surg Endosc 2023; 37:1629-1648. [PMID: 36781468 PMCID: PMC10017637 DOI: 10.1007/s00464-023-09928-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/28/2023] [Indexed: 02/15/2023]
Abstract
BACKGROUND In recent years, the use of Indocyanine Green (ICG) fluorescence-guided surgery during open and laparoscopic procedures has exponentially expanded across various clinical settings. The European Association of Endoscopic Surgery (EAES) initiated a consensus development conference on this topic with the aim of creating evidence-based statements and recommendations for the surgical community. METHODS An expert panel of surgeons has been selected and invited to participate to this project. Systematic reviews of the PubMed, Embase and Cochrane libraries were performed to identify evidence on potential benefits of ICG fluorescence-guided surgery on clinical practice and patient outcomes. Statements and recommendations were prepared and unanimously agreed by the panel; they were then submitted to all EAES members through a two-rounds online survey and results presented at the EAES annual congress, Barcelona, November 2021. RESULTS A total of 18,273 abstracts were screened with 117 articles included. 22 statements and 16 recommendations were generated and approved. In some areas, such as the use of ICG fluorescence-guided surgery during laparoscopic cholecystectomy, the perfusion assessment in colorectal surgery and the search for the sentinel lymph nodes in gynaecological malignancies, the large number of evidences in literature has allowed us to strongly recommend the use of ICG for a better anatomical definition and a reduction in post-operative complications. CONCLUSIONS Overall, from the systematic literature review performed by the experts panel and the survey extended to all EAES members, ICG fluorescence-guided surgery could be considered a safe and effective technology. Future robust clinical research is required to specifically validate multiple organ-specific applications and the potential benefits of this technique on clinical outcomes.
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Affiliation(s)
- E Cassinotti
- Department of General and Minimally Invasive Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, University of Milan, Via Francesco Sforza 35, 20121, Milan, Italy.
| | - M Al-Taher
- Research Institute Against Digestive Cancer (IRCAD), Strasbourg, France
| | - S A Antoniou
- Department of Surgery, Papageorgiou General Hospital, Thessaloniki, Greece
| | - A Arezzo
- Department of Surgical Sciences, University of Torino, Turin, Italy
| | - L Baldari
- Department of General and Minimally Invasive Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, University of Milan, Via Francesco Sforza 35, 20121, Milan, Italy
| | - L Boni
- Department of General and Minimally Invasive Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, University of Milan, Via Francesco Sforza 35, 20121, Milan, Italy
| | - M A Bonino
- Department of Surgery, Geneva University Hospitals, Geneva, Switzerland
| | - N D Bouvy
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - R Brodie
- Department of General Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - T Carus
- Niels-Stensen-Kliniken, Elisabeth-Hospital, Thuine, Germany
| | - M Chand
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, London, UK
- Division of Surgery and Interventional Sciences, University College London, London, UK
| | - M Diana
- IHU Strasbourg, Institute of Image-Guided Surgery and IRCAD, Research Institute Against Cancer of the Digestive System, Strasbourg, France
| | - M M M Eussen
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - N Francis
- Department of General Surgery, Yeovil District Hospital NHS Foundation Trust, Yeovil, UK
| | - A Guida
- Department of Medico-Surgical Sciences and Translation Medicine, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - P Gontero
- Division of Urology, Department of Surgical Science, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - C M Haney
- Department of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - M Jansen
- Department of Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Y Mintz
- Department of General Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - S Morales-Conde
- Unit of Innovation in Minimally Invasive Surgery, Department of General Surgery, University Hospital Virgen del Rocío, University of Sevilla, Seville, Spain
| | - B P Muller-Stich
- Department of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - K Nakajima
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - F Nickel
- Department of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - M Oderda
- Division of Urology, Department of Surgical Science, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - P Parise
- U.O.C. Chirurgia Generale, Policlinico di Abano Terme, Abano Terme, PD, Italy
| | - R Rosati
- Department of Gastrointestinal Surgery, San Raffaele Hospital, Milan, Italy
| | - M P Schijven
- Department of Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, North Holland, The Netherlands
- Amsterdam Gastroenterology and Metabolism, Amsterdam UMC, Amsterdam, North Holland, The Netherlands
- Amsterdam Public Health, Digital Health, Amsterdam UMC, Amsterdam, North Holland, The Netherlands
| | - G Silecchia
- Department of Medico-Surgical Sciences and Translation Medicine, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - A S Soares
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, London, UK
- Division of Surgery and Interventional Sciences, University College London, London, UK
| | - S Urakawa
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - N Vettoretto
- U.O.C. Chirurgia Generale, ASST Spedali Civili di Brescia P.O. Montichiari, Ospedale di Montichiari, Montichiari, Italy
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8
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Iwata H, Ogino H, Hattori Y, Nakajima K, Nomura K, Oguri M, Hayashi K, Toshito T, Sasaki S, Hashimoto S, Hiwatashi A. Clinical Outcomes of Image-Guided Proton Therapy for Recurrent Hepatocellular Carcinoma after TACE and/or RFA Treatment. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Hirata K, Naruse H, Yamamoto Y, Hatanaka K, Kinoshita K, Abiko S, Suzuki K, Nakajima K, Katagiri M, Takano M, Ozasa M, Umemura M, Nakajima S, Aoyama K, Sasaki T, Kuwatani M, Sakamoto N, Tanikawa S, Okazaki N, Tanaka S. Gastrointestinal: Rare malignant biliary stricture with rapid progression. J Gastroenterol Hepatol 2022; 37:1839. [PMID: 35307882 DOI: 10.1111/jgh.15802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/21/2021] [Accepted: 01/12/2022] [Indexed: 12/09/2022]
Affiliation(s)
- K Hirata
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - H Naruse
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Yamamoto
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Hatanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Kinoshita
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Abiko
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Suzuki
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakajima
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - M Katagiri
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Takano
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Ozasa
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Umemura
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - S Nakajima
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - K Aoyama
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - T Sasaki
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Kuwatani
- Department of Gastroenterology and Hepatology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - N Sakamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - S Tanikawa
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - N Okazaki
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - S Tanaka
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
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10
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Nagao K, Nakajima K. Penile implants in Japan. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Sato T, Nakajima M, Takeishi Y, Nakajima K, Egawa K, Watanabe E, Hasegawa M. Effect of brown rice intake on obese people with exercise habits. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Iwata H, Akita K, Ogino H, Yamaba Y, Kunii E, Takakuwa O, Nakajima K, Nomura K, Hayashi K, Toshito T, Hara M, Shibamoto Y. Immune-Related Radiation Pneumonitis in Patients Undergoing Durvalumab Treatment After Concurrent Chemo-Proton Therapy. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Jain S, Sakamoto T, Jung Y, Davidson IA, Barua P, Hayes JR, Shibahara K, Mizuno T, Miyamoto Y, Nakajima K, Richardson DJ. High spatial-density, cladding-pumped 6-mode 7-core fiber amplifier for C-band operation. Opt Express 2021; 29:30675-30681. [PMID: 34614788 DOI: 10.1364/oe.428142] [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] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
We present a C-band 6-mode 7-core fiber amplifier in an all-fiberized cladding-pumped configuration for space division multiplexed transmission supporting a record 42 spatial channels. With optimized fiber components (e.g. passively cooled pump laser diode, pump coupler, pump stripper), high power multimode pump light is coupled to the active fiber without any noticeable thermal degradation and an average gain of 18 dB and noise figure of 5.4 dB are obtained with an average differential modal gain of 3.4 dB.
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14
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Verschure DO, Nakajima K, Jacobson AF, Verberne HJ. 40 Years Anniversary of Cardiac 123I-mIBG Imaging: State of the Heart. Curr Cardiovasc Imaging Rep 2021. [DOI: 10.1007/s12410-021-09555-5] [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: 10/20/2022]
Abstract
Abstract
Purpose of Review
This narrative review reflects on the body of evidence on cardiac 123I-mIBG imaging that has accumulated since the introduction in the late 1970s and focusses on to what extent cardiac 123I-mIBG imaging has fulfilled its potential in cardiology especially.
Recent Findings
In contrast to the linear relationship between 123I-mIBG-derived parameters and overall prognosis in heart failure, there seems a “bell-shape” curve for 123I-mIBG-derived parameters and arrhythmic events. In addition, there is a potential clinical role for cardiac 123I-mIBG in optimizing patient selection for expensive devices (i.e., ICD and CRT). This needs of course to be established in future trials.
Summary
Cardiac 123I-mIBG imaging is, despite the numerous of studies, sometimes mistakenly seen as a nice to have technique rather than a must have imaging modality. Although cardiac 123I-mIBG imaging has grown and matured over the years, its full clinical potential has still not been tested to the maximum.
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Verschure DO, Poel E, De Vincentis G, Frantellizzi V, Nakajima K, Gheysens O, de Groot JR, Verberne HJ. The relation between cardiac 123I-mIBG scintigraphy and functional response 1 year after CRT implantation. Eur Heart J Cardiovasc Imaging 2021; 22:49-57. [PMID: 32259839 PMCID: PMC7758029 DOI: 10.1093/ehjci/jeaa045] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/21/2020] [Accepted: 03/10/2020] [Indexed: 12/12/2022] Open
Abstract
Aims Cardiac resynchronization therapy (CRT) is a disease-modifying therapy in patients with chronic heart failure (CHF). Current guidelines ascribe CRT eligibility on three parameters only: left ventricular ejection fraction (LVEF), QRS duration, and New York Heart Association (NYHA) functional class. However, one-third of CHF patients does not benefit from CRT. This study evaluated whether 123I-meta-iodobenzylguanidine (123I-mIBG) assessed cardiac sympathetic activity could optimize CRT patient selection. Methods and results A total of 78 stable CHF subjects (age 66.8 ± 9.6 years, 73% male, LVEF 25.2 ± 6.7%, QRS duration 153 ± 23 ms, NYHA 2.2 ± 0.7) referred for CRT implantation were enrolled. Subjects underwent 123I-mIBG scintigraphy prior to implantation. Early and late heart-to-mediastinum (H/M) ratio and 123I-mIBG washout were calculated. CRT response was defined as either an increase of LVEF to >35%, any improvement in LVEF of >10%, QRS shortening to <150 ms, or improvement in NYHA class of >1 class. In 33 patients LVEF increased to >35%, QRS decreased <150 ms in 36 patients, and NYHA class decreased in 33 patients. Late H/M ratio and hypertension were independent predictors of LVEF improvement to >35% (P = 0.0014 and P = 0.0149, respectively). In addition, early H/M ratio, LVEF, and absence of diabetes mellitus (DM) were independent predictors for LVEF improvement by >10%. No independent predictors were found for QRS shortening to <150 ms or improvement in NYHA class. Conclusion Early and late H/M ratio were independent predictors of CRT response when improvement of LVEF was used as measure of response. Therefore, cardiac 123I-mIBG scintigraphy may be used as a tool to optimize selection of subjects that might benefit from CRT.
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Affiliation(s)
- D O Verschure
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Location Amsterdam Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands.,Department of Cardiology, Zaans Medical Center, Koningin Julianaplein 58, 1502 DV Zaandam, the Netherlands
| | - E Poel
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Location Amsterdam Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - G De Vincentis
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, "Sapienza" University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - V Frantellizzi
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, "Sapienza" University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - K Nakajima
- Department of Functional Imaging and Artificial Intelligence, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-8640, Japan
| | - O Gheysens
- Department of Nuclear Medicine, Cliniques Universitaires Saint-Luc, Hippokrateslaan 10, 1200 Brussels, Belgium
| | - J R de Groot
- Heart Center, Department of Cardiology, Amsterdam University Medical Centers, Location Amsterdam Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - H J Verberne
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, Location Amsterdam Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
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Bourgeois S, Peeters I, Vanderschueren G, Nous A, De Keyser J, Nakajima K, Poel E, Verberne HJ, De Raedt S. Prognostic value of myocardial MIBG scintigraphy in acute ischemic stroke. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab111.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background Autonomic dysfunction is a common complication of acute ischemic stroke and has been associated with poor functional outcome and increased mortality. We investigated the potential relation between the myocardial washout rate (WOR) of 123I-meta-iodobenzylguanidine (123I-mIBG), as a measure of cardiac sympathetic activity, and functional outcome in acute ischemic stroke.
Methods 38 patients with ischemic stroke (11 females, 72 years old [61-81)), underwent myocardial 123I-mIBG scintigraphy within the first week after stroke onset. Early (10 minutes post-injection (pi)) and late (4 hours pi) planar scans of the thoracic region were made. Regions of interest (ROI) were drawn over the mediastinum and the heart, and heart-to-mediastinum ratio (HMR) was calculated. Myocardial WOR was calculated as follows: (ROI heart early – ROI heart late)/ (ROI heart early) x 100%. Counts were corrected for background and counts in ROI heart late were corrected for decay. Patients were divided in 2 groups: those with a good functional outcome, defined as modified Rankin Scale (mRS) ≤ 2 at 3 months after stroke (i.e., patient is functionally independent), and those with a poor functional outcome, defined as a mRS > 2.
Results Median WOR was 27,4 % (IQR 10,4-43,6). In univariate analysis, poor functional outcome after stroke was associated with age, stroke severity on admission (measured by the National Institutes of Health Stroke Scale (NIHSS)), beta-blocker use before and during hospitalization, WOR and late HMR. In subsequent multivariate analysis WOR (OR 1.087; 95% CI 1.003-1.177, p = 0.042) was an independent predictor of poor stroke outcome even after adjustment for age and NIHSS.
Conclusions In patients with acute ischemic stroke, myocardial washout of 123I-mIBG predicts stroke outcome, even after adjustment for age and stroke severity on admission.
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Affiliation(s)
- S Bourgeois
- UZ Brussel, Nuclear Medicine, Jette, Belgium
| | - I Peeters
- Sint-Maria Ziekenhuis, Neurology, Halle, Belgium
| | | | - A Nous
- UZ Brussel, Neurology, Jette, Belgium
| | - J De Keyser
- Vrije University Brussels, Brussels, Belgium
| | - K Nakajima
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
| | - E Poel
- Amsterdam UMC - Location Academic Medical Center, Radiology and Nuclear Medicine, Amsterdam, Netherlands (The)
| | - HJ Verberne
- Amsterdam UMC - Location Academic Medical Center, Radiology and Nuclear Medicine, Amsterdam, Netherlands (The)
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17
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Okuda K, Nakajima K, Saito H, Yamashita S, Hashimoto M, Kinuya S. Radiomics analysis of myocardial perfusion SPECT images in patients with cardiomyopathy and heart failure. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab111.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): JSPS KAKENHI Grants
Background
Although myocardial perfusion heterogeneity due to focally damaged cardiomyocytes is observed in single−photon emission computed tomography (SPECT) imaging, a current perfusion defect scoring system does not allow us to provide sufficient diagnostic information for heterogeneity.
Purpose
The aim of this study was to perform radiomics analysis of myocardial perfusion SPECT (MPS) images to investigate the potential to detect myocardial perfusion heterogeneity.
Methods
Patients with hypertrophic cardiomyopathy (n = 3), heart failure (n = 9), and with a low likelihood of coronary artery disease (n =15) (Figure 1), who underwent a rest 99mTc-MIBI myocardial perfusion SPECT, were assessed using a LIFEx software. Four shape−based features, 6 histogram−based features, and 32 textural features were computed. The relevant features for the classification of the patients were selected using the Boruta algorithm, and hierarchical clustering of the selected features using the Spearman correlation coefficient was also performed for the feature reduction. The receiver operating characteristics (ROC) analysis was performed by the support vector machine to calculate the area under the ROC curve (AUC) for the selected features.
Results
Of 40 features, 17 were selected by the classification analysis, and these features were classified into 7 classes by the correlation analysis (Figure 2). The ROC AUCs for 7 features extracted from each class were 0.99, 0.97, 0.96, 0.92, 0.90, 0.86, and 0.83 for the contrast of NDGLDM, the entropy of histogram, ZLNU of GLZLM, the energy of GLCM, the energy of histogram, SZLGE of GLZLM, and the correlation of GLCM, respectively, as compared to 0.39 for a summed rest score.
Conclusions
Radiomics analysis successfully determined the myocardial perfusion heterogeneity in patients with cardiomyopathy and heart failure. It might be promising for the evaluation of myocardial damages that cannot be analyzed by the conventional scoring method.
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Affiliation(s)
- K Okuda
- Kanazawa Medical University, Physics, Ishikawa, Japan
| | - K Nakajima
- Kanazawa University Graduate School of Medicine, Functional Imaging and Artificial Intelligence, Kanazawa, Japan
| | - H Saito
- Kanazawa Medical University, Radiological Technology, Kahoku, Japan
| | - S Yamashita
- Public Central Hospital of Matto Ishikawa, Radiology, Hakusan, Japan
| | - M Hashimoto
- Kanazawa Medical University, Physics, Ishikawa, Japan
| | - S Kinuya
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
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18
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Nakajima K, Nakata T, Doi T, Tada H, Saito S, Maruyama K. Creation of mortality risk calculator using a I-123 mIBG-based machine learning model: differential prediction of arrhythmic death and heart-failure death. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab111.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Although I-123 meta-iodobenzylguanidine (mIBG) has been applied to patients with chronic heart failure (CHF), a diagnostic tool for differential prediction of fatal arrhythmic events (ArE) and heart-failure death (HFD) has been pursued.
Purpose
The aim of this study was to create a calculator of mortality risk for differentiating mode of cardiac death using a machine learning (ML) method, and to test the accuracy in a new cohort of patients with CHF.
Methods
A total of 529 patients with CHF was used as the training database for ML. The ArE group consisted of patients with arrhythmic death, sudden cardiac death and appropriate therapy by implantable cardioverter defibrillator. A heart-to-mediastinum ratio (H/M) standardized to the medium-energy collimator condition was calculated with a planar anterior mIBG scintigram. The best classifier models for predicting HFD and ArE were determined by four-fold cross validation. Input variables included age, sex, New York Heart Association (NYHA) functional class, left ventricular ejection fraction, ischemic etiology, mIBG H/M and washout rate, and b-type natriuretic peptide (BNP) or NT Pro BNP, estimated glomerular filtration rate, hemoglobin, and complications such as diabetes and hypertension. After creating the ML-based model, the constructed classifier functions for ArE, HFD, and survival were exported for subsequent use. A new cohort of patients (n = 312, age 67 ± 13 years, 2015 or later) was used to test the ML-based model.
Results
The training database included 141 events (27%) with ArE (7%) and HFD (20%). Receiver-operating characteristic analysis by four-fold validation showed area under the curve value of 0.90 for HFD and 0.73 for ArE. Among various ML methods, the logistic regression method demonstrated the most stable calculation of the probability of ArE followed by random forest and gradient boosted tree methods. Therefore, the logistic-regression method was used for calculating both HFD and ArE probabilities. In the test cohort, patients with a high HFD probability >8% resulted in 6.3-fold higher HFD than those with low probability (≤ 8%). Patients with high ArE probability >8% showed 2.5-fold higher ArE than those with low probability (≤ 8%).
Conclusion
The ML-based mortality risk calculator could be used for stratifying patients at high and low risks, which might be useful for estimating appropriate treatment strategy.
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Affiliation(s)
- K Nakajima
- Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - T Nakata
- Hakodate Goryoukaku Hospital, Hakodate, Japan
| | - T Doi
- Teine Keijinkai Hospital, Sapporo, Japan
| | - H Tada
- Kanazawa University Hospital, Kanazawa, Japan
| | - S Saito
- Kanazawa University Hospital, Kanazawa, Japan
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19
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Nakajima K. Editorial feature: Meet the PCP Editors-Keiji Nakajima. Plant Cell Physiol 2021; 62:387-388. [PMID: 33439259 PMCID: PMC8286134 DOI: 10.1093/pcp/pcaa176] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
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20
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Komai Y, Nakajima K, Saito K, Tomioka Y, Masuda H, Ogawa A, Yonese J, Kobayashi E, Ito M. Development of novel transurethral surgery system to facilitate two-arm operation-preclinical study. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01607-9] [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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21
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Ota R, Nakajima K, Ogawa I, Tamagawa Y, Kwon SI, Berg E, Cherry SR, Shimoi H, Hasegawa Y, Nishizawa H, Shimano K, Hasegawa T. Lead-free MCP to improve coincidence time resolution and reduce MCP direct interactions. Phys Med Biol 2021; 66:064006. [PMID: 33636710 DOI: 10.1088/1361-6560/abea2c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Achieving direct imaging of the annihilation position of a positron on an event-by-event basis using an ultrafast detector would have a great impact on the field of nuclear medicine. Cherenkov emission is the most attractive physical phenomenon for realizing such an ultrafast timing performance. Moreover, a microchannel-plate photomultiplier tube (MCP-PMT) is one of the most promising photodetectors for fully exploiting the fast timing properties of Cherenkov emission owing to its excellent single photon time resolution of 25 ps full width at half maximum (FWHM). However, as the MCP structure generally contains a lead compound, the gamma rays frequently and directly interact with the MCP, resulting in the degradation of its timing performance and generation of undesirable side peaks in its coincidence timing histogram. To overcome this problem, we have developed a new MCP-PMT based on an MCP consisting of borosilicate glass, thus drastically reducing the probability of the photoelectric effect occurring in the MCP. To evaluate its insensitivity to gamma rays and its timing performance, a coincidence experiment was performed and showed that the probability of direct interactions was reduced by a factor of 3.4. Moreover, a coincidence time resolution of 35.4 ± 0.4 ps FWHM, which is equivalent to a position resolution of 5.31 mm, was obtained without any pulse height/area cut, improving to 28.7 ± 3.0 ps when selecting on the highest amplitude events by careful optimization of the voltage divider circuit of the new MCP-PMT. The timing performance of this new MCP-PMT presents an important step toward making direct imaging possible.
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Affiliation(s)
- R Ota
- Central Research Laboratory, Hamamatsu Photonics K. K., Hamamatsu, Japan
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22
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Liu J, Miwa S, Nakajima K, Osaka M. Synthesis of simulated fuels containing CsI under gas-tight condition. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2021.100916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Fukaya Y, Goto M, Nakagawa S, Nakajima K, Takahashi K, Sakon A, Sano T, Hashimoto K. REACTOR PHYSICS EXPERIMENT IN A GRAPHITE-MODERATION SYSTEM FOR HTGR. EPJ Web Conf 2021. [DOI: 10.1051/epjconf/202124709017] [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 Japan Atomic Energy Agency (JAEA) started the Research and Development (R&D) to improve nuclear prediction techniques for High Temperature Gas-cooled Reactors (HTGRs). The objectives are to introduce a generalized bias factor method to avoid full mock-up experiment for the first commercial HTGR and to introduce reactor noise analysis to High Temperature Engineering Test Reactor (HTTR) experiment to observe sub-criticality. To achieve the objectives, the reactor core of graphite-moderation system named B7/4”G2/8”p8EUNU+3/8”p38EU(1) was newly composed in the B-rack of Kyoto University Critical Assembly (KUCA). The core is composed of the fuel assembly, driver fuel assembly, graphite reflector, and polyethylene reflector. The fuel assembly is composed of enriched uranium plate, natural uranium plate and graphite plates to realize the average fuel enrichment of HTTR and it’s spectrum. However, driver fuel assembly is necessary to achieve the criticality with the small-sized core. The core plays a role of the reference core of the bias factor method, and the reactor noise was measured to develop the noise analysis scheme. In this study, the overview of the criticality experiments is reported. The reactor configuration with graphite moderation system is rare case in the KUCA experiments, and this experiment is expected to contribute not only for an HTGR development but also for other types of a reactor in the graphite moderation system such as a molten salt reactor development.
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Sato T, Nakajima M, Takeishi Y, Nakajima K, Hasegawa M. Effect of brown rice on the blood exam in Japanese sumo wrestling. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Tonegawa R, Miyamoto K, Ueda N, Nakajima K, Wada M, Yamagata K, Ishibashi K, Inoue Y, Noda T, Nagase S, Ota M, Aiba T, Nakajima T, Fukuda T, Kusano K. Ventricular tachycardia in cardiac sarcoidosis -prognosis, characterization of ventricular substrates and outcomes of treatment-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The prognosis, the underlying substrate and clinical outcomes of treatment are unclear in patients with cardiac sarcoidosis (CS)-related ventricular tachycardia (VT).
Objective
This study investigated the prognosis and the relationship between electroanatomical mapping (EAM) and imaging findings in patients with CS-related VT.
Methods
A total of 203 CS patients (Age 68.1±11.6 years, 87 males) were enrolled at two tertiary care medical centers between 2000 and 2018. All met the 2016 Japanese Circulation Society guidelines for diagnosis of CS. They were followed for a composite of major adverse cardiac events (MACE) including cardiac death, heart transplantation, unscheduled hospitalization for heart failure, and life-threatening ventricular arrhythmias. Distribution of late gadolinium enhancement (LGE) on cardiac MRI (CMR) and/or an abnormal myocardial 18F-fluorodeoxyglucose (FDG) uptake on positron emission tomography at diagnosis were examined. The relationship between EAM and the image findings were also analyzed in patients with radiofrequency ablation (RFA) for VT.
Results
During a median follow-up of 53 months, 87 of the 203 patients (43%) experienced a MACE. Baseline factors associated with MACE were presence of sustained VT (HR, 2.43, 95% CI 1.54–3.85, P<0.001), left ventricular ejection fraction below 50% (HR, 1.95 95% CI 1.07–3.56, P=0.029), and abnormal myocardial FDG uptake (HR, 2.42 95% CI 1.04–5.61, P=0.039). Overall, 69 of the 203 patients (34%) experienced sustained VT. Abnormal myocardial FDG uptake was significantly more prevalent in patients with VT than in those without (92.7% vs. 78.5%, P=0.02). A total of 25 patients (9.9%) required RFA for CS-related VT (Age 64.0±8.7 years, 12 males, 1.32±0.56 RFAs per patient). Abnormal electrocardiograms (EGM) were observed in 22 of the 25 patients (88%). LGE was more frequent than abnormal FDG uptake in areas with an abnormal EGM (77% vs. 41%; P=0.002). Over a mean follow-up period of 67-months, 13 of the 25 patients with RFA (52%) remained free of VT episodes (Figure). VT recurred in nine of the 12 patients with RFA and in 17 of the 47 patients without RFA, but was suppressed by intensive pharmacologic therapy such as the combined use of amiodarone and sotalol. In patients with CS-related VT, survival without experiencing a MACE did not differ in participants with or without RFA.
Conclusions
In our 203 CS patients, sustained VT and abnormal FDG uptake were associated with worse cardiac outcomes. The prevalence of abnormal FDG uptake was significantly higher in patients with CS-related VT, LGE on CMR was more frequent within localized areas of an abnormal EGM, suggesting that both scar itself and the associated inflammation were involved in the pathogenesis of CS-related VT. Successful RFA of CS-related VT is still challenging, and recurrence is common. Preprocedural CMR can be useful in detecting abnormal EGMs that are potential targets for substrate ablation.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- R Tonegawa
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Kumamoto University, Department of Advanced Cardiovascular Medicine, Kumamoto, Japan
| | - K Miyamoto
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - K Nakajima
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - M Wada
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - K Yamagata
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - K Ishibashi
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Inoue
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - S Nagase
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - M Ota
- National Cerebral & Cardiovascular Center, Department of Radiology, Suita, Japan
| | - T Aiba
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - T Nakajima
- Saitama Cardiovascular and Respiratory Center, Department of Cardiology, Kumagaya, Japan
| | - T Fukuda
- National Cerebral & Cardiovascular Center, Department of Radiology, Suita, Japan
| | - K.F Kusano
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Kumamoto University, Department of Advanced Cardiovascular Medicine, Kumamoto, Japan
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Kamada H, Ishibashi K, Nakajima K, Ueda N, Kamakura T, Wada M, Yamagata K, Inoue Y, Miyamoto K, Nagase S, Noda T, Aiba T, Isobe M, Terasaki F, Kusano K. Cardiac function at diagnosis is important prognostic factor in patients with cardiac sarcoidosis -from Japanese nationwide questionnaire survey-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Sarcoidosis is a systemic non-caseating granulomatous disease of unknown etiology. Cardiac involvement (cardiac sarcoidosis, CS) has been reported to be an important prognostic factor in this disease because of heart failure and/or ventricular arrhythmia, and corticosteroid therapy is usually prescribed to prevent cardiac events. However, little is known about the relationship of cardiac function and concomitant corticosteroid therapy on later cardiac events in CS.
Objective
We evaluated the relationship between prognosis and left ventricular ejection fraction (LVEF) at the time of diagnosis in CS patients from the Japanese nationwide questionnaire survey.
Methods
Total of 757 Japanese patients from 57 hospitals who diagnosed CS were examined. Patients who unsatisfied the criteria of the Japanese new guidelines, or who underwent cardiac transplantations were excluded, and 420 patients (287 females, mean age 60±13 years old, median follow-up periods 1864 days [interquartile range: 845–3159 days]) were analyzed. The relationship of adverse events (all-cause death, cardiovascular death, and appropriate ICD [Implantable Cardioverter Defibrillator] discharge) and LVEF (with corticosteroid 84%) (low LVEF: LVEF≤35% n=98 [with corticosteroid in 78%], moderate LVEF: LVEF 35–50% n=104 [with corticosteroid in 93%], normal LVEF: 50≤LVEF n=218 [with corticosteroid in 83%]) were evaluated respectively.
Results
89 CS patients developed all-cause death (n=50), cardiovascular death (n=30) or appropriate ICD discharge (n=48). The frequency of corticosteroid therapy was not different in the each LVEF group, but Kaplan-Meier analysis revealed that all-cause death, cardiovascular death, and all cardiovascular adverse events were more observed in lower LVEF group (log-rank p<0.0001). Furthermore, multivariate Cox hazard analysis revealed that LVEF was a most important independent prognostic factor in CS.
Conclusion
This Japanese nationwide questionnaire survey data showed that initial LVEF was an independent and strong prognostic predictor in CS, therefore primary prevention would be needed even after starting corticosteroid in patients with decreased cardiac function.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- H Kamada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Ishibashi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Nakajima
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Kamakura
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Wada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Yamagata
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Inoue
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Miyamoto
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Nagase
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Aiba
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Isobe
- Tokyo Medical and Dental University, Tokyo, Japan
| | | | - K Kusano
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
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Kamada H, Ishibashi K, Nakajima K, Ueda N, Kamakura T, Wada M, Yamagata K, Inoue Y, Miyamoto K, Nagase S, Noda T, Aiba T, Isobe M, Terasaki F, Kusano K. Long time clinical course of cardiac sarcoidosis with corticosteroid therapy -from Japanese nationwide questionnaire survey-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Sarcoidosis is a systemic inflammatory syndrome of unknown etiology and cardiac involvement has been reported to be an important prognostic factor in this disease. An autopsy study has reported that the frequency of this cardiac involvement (cardiac sarcoidosis: CS) varies in the different countries and races and very frequent in Japanese patients. We therefore performed the nationwide questionnaire survey and try to clarify the clinical characteristics and corticosteroid effect in CS, especially focused on arrhythmic events in this disease.
Methods
Total of 757 Japanese patients from 57 hospitals who diagnosed CS were examined. Patients who unsatisfied the criteria of the Japanese new guidelines, or who underwent cardiac transplantations were excluded, and 420 patients (287 females, median follow-up periods 1864 days [interquartile range: 845–3159 days]) were analyzed. The clinical outcome and corticosteroid effect were evaluated.
Results
Clinical characteristics at diagnosis was as follows: female dominant (68%), mean age of 60±13 years old, mean left ventricular ejection fraction was 49±16%. Arrhythmic events were very frequently observed as an initial cardiac manifestation in 263 patients (62%) of CS, of which atrioventricular block (AVB) in 174 (41%), ventricular tachycardia (VT) in 73 (17%) and AVB with VT in 17 (4%) (Figure 1A). Pacemaker was implanted in 166 patients (40%) and defibrillators was 137 patients (33%). Corticosteroid was prescribed in 144 (83%) of 174 patients with AVB and in 62 (85%) of 73 patients with VT. Initial dose was mean 47.9 mg and maintenance dose of mean 7.3 mg. Corticosteroid improved VT as good as AVB (27% vs. 29%). However, corticosteroid sometimes worsened VT events compared with AVB (10% vs. 2%) (Figure 1B). During the course of follow-up, 32 patients were needed to increase corticosteroid in 23 of AVB and 10 of VT cases. However, there were no difference in mortality between the groups, whether or not to increase corticosteroid. All survival rate was 92% (5-year mortality), 83% (10-year mortality) and free from all cause death and defibrillator charge was 81% (5 year), 71% (10 year).
Conclusion
Fatal arrhythmia is commonly observed in CS as a primary symptom. Corticosteroid sometimes worsen ventricular arrhythmia and appropriate defibrillator discharge was common. Thus, careful attention for activating ventricular arrhythmia would be needed during the follow-up period even after corticosteroid therapy.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- H Kamada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Ishibashi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Nakajima
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Kamakura
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Wada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Yamagata
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Inoue
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Miyamoto
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Nagase
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Aiba
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Isobe
- Tokyo Medical and Dental University, Tokyo, Japan
| | | | - K Kusano
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
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Kamada H, Ishibashi K, Nakajima K, Ueda N, Kamakura T, Wada M, Yamagata K, Inoue Y, Miyamoto K, Nagase S, Noda T, Aiba T, Isobe M, Terasaki F, Kusano K. Long-term follow up ventricular tachycardia patients with preserved cardiac function -from Japanese cardiac sarcoidosis nationwide questionnaire survey-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Prior ventricular tachycardia (VT) and low left ventricular ejection fraction (LVEF) are the most important prognostic factors in cardiac sarcoidosis (CS). Recently diagnosis of CS was renewed according to Japanese new guidelines. Patients with preserved cardiac function often have VT events, thus new guidelines recommends to assess the implantable cardioverter defibrillator (ICD) implantation for CS patients with preserved LVEF (35%≤LVEF<50%). However, the long-term prognosis of CS patients with preserved LVEF is unclear.
Objective
In CS patients with preserved LVEF, we evaluated the prognosis between VT manifestation and non-VT manifestation groups at CS diagnosis from Japanese nationwide questionnaire survey.
Methods
Total of 757 Japanese patients from 57 hospitals who diagnosed CS were examined. Patients who unsatisfied the criteria of the Japanese new guidelines, who had LVEF≤35%, LVEF>50%, or who underwent cardiac transplantations were excluded. 104 patients with LVEF 35–50% (67 females, mean age 60±15 years old, median follow-up periods 2134 days [interquartile range: 758–2935 days]) were analyzed. The prognosis between VT manifestation and non-VT manifestation groups at CS diagnosis were evaluated.
Results
30 patients had VT manifestation at CS diagnosis and 24 patients (80%) received ICDs. 74 patients had no VT manifestation at CS diagnosis and 19 patients (44%) received ICDs during follow up period. All-cause mortality was not different between two groups (Figure). Appropriate ICD therapy of non-VT manifestation group was significantly lower compared with that of VT manifestation group (log-rank p=0.001), however considerable number (n=7, 15%) of non-VT manifestation group had appropriate ICD therapy event during follow-up period. Cox hazard analysis revealed that concomitant non-sustained VT (NSVT) with atrioventricular block (AVB) was a predictor of appropriate ICD therapy in non-VT manifestation group.
Conclusion
This nationwide survey showed that considerable number of CS patients with preserved LVEF had VT events, independent of VT manifestation. Concomitant NSVT with AVB was a predictor of VT events, and ICD implantation should be assessed.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- H Kamada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Ishibashi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Nakajima
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Kamakura
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Wada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Yamagata
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Inoue
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Miyamoto
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Nagase
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Aiba
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Isobe
- Tokyo Medical and Dental University, Tokyo, Japan
| | | | - K Kusano
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
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Tonegawa R, Miyamoto K, Ueda N, Nakajima K, Kamakura T, Yamagata K, Wada M, Ishibashi K, Inoue Y, Noda T, Nagase S, Aiba T, Kusano K. Micro-embolic risks during radiofrequency and cryoballoon-ablation of atrial fibrillation -analysis from real-time carotid artery doppler monitoring-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Catheter ablation of atrial fibrillation (AF) is associated with risks of silent cerebral events. However, the timing of intraprocedural micro-embolic events or differences between open-irrigated radiofrequency (RF) and cryoballoon (Cryo) ablation are unclear. Newly developed real-time carotid artery Doppler is a simple non-invasive method to detect micro-embolic signals (MESs) during ablation.
Objective
We investigated the timing of detecting MESs during RF and Cryo ablation of AF.
Methods
During the first pulmonary vein isolation (PVI) session of AF, MESs were monitored by real-time carotid artery Doppler monitoring throughout the procedure. The MES counts were collected and evaluated separately during the different steps of the procedure (Figure).
Results
Thirty-three AF patients (RF/Cryo: 22/11 cases, 9 females, 69.5±11.6 y.o) were included. PVI was successfully accomplished in all patients with no major complications. The MES count was significantly greater in the RF group than Cryo group (table). In both groups, left atrial (LA) access (interatrial puncture) and sheaths insertion to the LA generated a significant number of MESs (RF: 1690 of 9116 MESs [18.5% of the total MESs], Cryo: 793 of 2285 MESs [34.7%]). In the RF group, MESs were observed incessantly during PVI (Figure). The LA dwell time was significantly longer in the RF group than Cryo group (table). In the RF group, the MES count was significantly greater in the longer LA dwell time group (LA dwell time >130min) than the shorter group (464.2±179.7 vs 302.6±138.2: P=0.049). During the cryo-applications in the Cryo group, the MESs were greatest during the first cryoballoon application (625 of 2285 MESs [27.4%]).
Conclusions
There were more MESs during RF ablation than cryoablation. MESs were recorded during a variety of steps throughout the procedure. In the RF group, most of MESs were recorded incessantly during radiofrequency ablation and greater number of MESs were recorded in patients with longer LA dwell time. In the Cryo group, most of MESs occurred during phases with a high probability of gaseous emboli.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- R Tonegawa
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Kumamoto University, Department of Advanced Cardiovascular Medicine, Kumamoto, Japan
| | - K Miyamoto
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - K Nakajima
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - T Kamakura
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - K Yamagata
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - M Wada
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - K Ishibashi
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Inoue
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - S Nagase
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - T Aiba
- National Cerebral & Cardiovascular Center, Division of arrhythmia, Department of Cardiovascular Medicine, Suita, Japan
| | - K.F Kusano
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Kumamoto University, Department of Advanced Cardiovascular Medicine, Kumamoto, Japan
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30
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Iwata H, Ogino H, Hattori Y, Nakajima K, Nomura K, Hayashi K, Toshito T, Sasaki S, Hashimoto S, Mizoe J, Shibamoto Y. Image-guided Proton Therapy for Elderly Patients with Hepatocellular Carcinoma: High Local Control and Quality of Life. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Yokoyama Y, Miyamoto K, Nakai M, Sumita Y, Ueda N, Nakajima K, Kamakura T, Wada M, Yamagata K, Ishibashi K, Inoue Y, Nagase S, Noda T, Aiba T, Kusano K. The safety of catheter ablation of atrial fibrillation in elderly patients -analysis of the nationwide database in Japan, JROAD-DPC-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
“Age” is one of the major concerns and determinants of the indications for catheter ablation (CA) of atrial fibrillation (AF). There are little safety data on CA of AF according to the age. This study aimed to assess the safety of CA in elderly patients undergoing CA of AF.
Methods and results
We investigated the complication rate of CA of AF for the different age groups (<60 years, 60–65, 65–70, 70–75, 75–80, 80–85, and ≥85) by a nationwide database (Japanese Registry Of All cardiac and vascular Diseases [JROAD]-DPC). The JROAD-DPC included 73,296 patients (65±11 years, 52,883 men) who underwent CA of AF from 516 hospitals in Japan. Aged patients had more comorbidities and a significantly increased CHADS2 score and higher rate of female according to a higher age. The overall complication rate was 2.6% and in-hospital mortality was 0.05%. By comparing each age group, complications occurred more frequently in higher aged groups. A multivariate adjusted hazard ratio revealed an increased age was independently and significantly associated with the overall complications (odds ratio was 1.25, 1.35, 1.72, 1.86, 2.76 and 3.13 respectively; reference <60 years).
Conclusions
The frequency of complications was significantly higher according to a higher age. We should take note of the indications and procedure for CA of AF in aged patients.
Funding Acknowledgement
Type of funding source: Public Institution(s). Main funding source(s): Intramural Research Fund 17 (Kusano) for Cardiovascular Diseases of the National Cerebral and Cardiovascular Center
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Affiliation(s)
- Y Yokoyama
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Miyamoto
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Nakai
- National Cerebral and Cardiovascular Center Hospital, Center for Cerebral and Cardiovascular Disease Information, Osaka, Japan
| | - Y Sumita
- National Cerebral and Cardiovascular Center Hospital, Center for Cerebral and Cardiovascular Disease Information, Osaka, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Nakajima
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Kamakura
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Wada
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Yamagata
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Ishibashi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Inoue
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Nagase
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Aiba
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Kusano
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
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32
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Nakajima K, Iwata H, Hattori Y, Hashimoto S, Nomura K, Hayashi K, Toshito T, Baba F, Mizoe J, Ogino H, Shibamoto Y. The 3-Year Patient-Reported Outcomes of Moderate Hypofractionation (3 GyE Per Fraction) and Conventional Fractionation (2 GyE Per Fraction) Proton Therapy for Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Hashimoto S, Ogino H, Iwata H, Hattori Y, Nakajima K, Yamamori E, Hara M, Nakamae K, Akita K, Mizoe J, Shibamoto Y. Outcomes of Proton Beam Therapy for Lung Cancer in Patients with Interstitial Pneumonia. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Galle P, Kim R, Sung M, Harris W, Waldschmidt D, Cabrera R, Mueller U, Nakajima K, Ishida T, El-Khoueiry A. 990P Updated results of a phase Ib study of regorafenib (REG) plus pembrolizumab (PEMBRO) for first-line treatment of advanced hepatocellular carcinoma (HCC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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35
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Ota R, Nakajima K, Ogawa I, Tamagawa Y, Shimoi H, Suyama M, Hasegawa T. Precise analysis of the timing performance of Cherenkov-radiator-integrated MCP-PMTs: analytical deconvolution of MCP direct interactions. ACTA ACUST UNITED AC 2020; 65:10NT03. [DOI: 10.1088/1361-6560/ab8c8f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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36
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Yu XZ, Morikawa D, Nakajima K, Shibata K, Kanazawa N, Arima T, Nagaosa N, Tokura Y. Motion tracking of 80-nm-size skyrmions upon directional current injections. Sci Adv 2020; 6:eaaz9744. [PMID: 32596450 PMCID: PMC7299614 DOI: 10.1126/sciadv.aaz9744] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 05/05/2020] [Indexed: 05/29/2023]
Abstract
Nanometer-scale skyrmions are prospective candidates for information bits in low-power consumption devices owing to their topological nature and controllability with low current density. Studies on skyrmion dynamics in different classes of materials have exploited the topological Hall effect and current-driven fast motion of skyrmionic bubbles. However, the small current track motion of a single skyrmion and few-skyrmion aggregates remains elusive. Here, we report the tracking of creation and extinction and motion of 80-nm-size skyrmions upon directional one-current pulse excitations at low current density of the order of 109 A m-2 in designed devices with the notched hole. The Hall motion of a single skyrmion and the torque motions of few-skyrmion aggregates have been directly revealed. The results exemplify low-current density controls of skyrmions, which will pave the way for the application of skyrmions.
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Affiliation(s)
- X. Z. Yu
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - D. Morikawa
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - K. Nakajima
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - K. Shibata
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - N. Kanazawa
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
| | - T. Arima
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
| | - N. Nagaosa
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
| | - Y. Tokura
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
- Tokyo College, University of Tokyo, Tokyo 113-8656, Japan
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37
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Inotani S, Taniguchi Y, Nishikawa H, Maeda-Aoyama N, Nakajima K, Arii K, Terada Y. AB1031 DYSKERATOTIC CELLS IN PERSISTENT PRURITIC SKIN LESIONS AS A PROGNOSTIC FACTOR IN ADULT-ONSET STILL’S DISEASE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4072] [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: 11/03/2022]
Abstract
Background:Adult-onset Still’s disease (AOSD), a systemic inflammatory disorder, is characterized by high fever, evanescent rash, arthritis, and hyperferritinaemia. AOSD is also reported to be associated with other skin lesions, including persistent pruritic papules and plaques.Objectives:This study aimed to assess the significance of dyskeratotic skin lesions in Japanese AOSD patients.Methods:We retrospectively assessed the histology of persistent pruritic skin lesions and evanescent rashes and the relationship between dyskeratotic cells, serum markers, and outcomes in 20 Japanese AOSD patients, comparing AOSD histology with that of dermatomyositis (DM), drug eruptions, and graft-versus-host disease (GVHD).Results:Persistent pruritic lesions were characterized by scattered single keratinocytes with an apoptotic appearance confined to the upper layer of the epidermis and horny layer without inflammatory infiltrate. In contrast to AOSD, the histology of DM, drug eruption, and GVHD demonstrated dyskeratotic cells in all layers of the epidermis with inflammatory infiltrate. AOSD with evanescent rash showed no dyskeratotic cells. The dyskeratotic cells in pruritic AOSD lesions stained positive for ssDNA and terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling, indicating apoptosis. Serum IL-18 was significantly higher in AOSD patients with dyskeratotic cells than those without, and generally required higher doses of glucocorticoids, immunosuppressants, and biologic agents. Two of ten AOSD patients with dyskeratotic cells died from haemophagocytic lymphohistiocytosis.Conclusion:Persistent pruritic AOSD skin lesions are characterized by dyskeratotic cells with apoptotic features, involving the upper layers of the epidermis. There may be a link to elevated IL-18. This dyskeratosis may be a negative prognostic indicator.Disclosure of Interests:None declared
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38
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Arora PD, Nakajima K, Nanda A, Plaha A, Wilde A, Sacks DB, McCulloch CA. Flightless anchors IQGAP1 and R-ras to mediate cell extension formation and matrix remodeling. Mol Biol Cell 2020; 31:1595-1610. [PMID: 32432944 PMCID: PMC7521798 DOI: 10.1091/mbc.e19-10-0554] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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] [Indexed: 12/28/2022] Open
Abstract
Tractional remodeling of collagen fibrils by fibroblasts requires long cell extensions that mediate fibril alignment. The formation of these cell extensions involves flightless I (FliI), an actin-binding protein that contains a leucine-rich-repeat (LRR), which binds R-ras and may regulate cdc42. We considered that FliI interacts with small GTPases and their regulators to mediate assembly of cell extensions. Mass spectrometry analyses of FliI immunoprecipitates showed abundant Ras GTPase-activating-like protein (IQGAP1), which in immunostained samples colocalized with FliI at cell adhesions. Knockdown of IQGAP1 reduced the numbers of cell extensions and the alignment of collagen fibrils. In experiments using dominant negative mutants, cdc42 activity was required for the formation of short extensions while R-ras was required for the formation of long extensions. Immunoprecipitation of wild-type and mutant constructs showed that IQGAP1 associated with cdc42 and R-ras; this association required the GAP-related domain (1004–1237 aa) of IQGAP1. In cells transfected with FliI mutants, the LRR of FliI, but not its gelsolin-like domains, mediated association with cdc42, R-ras, and IQGAP1. We conclude that FliI interacts with IQGAP1 and co-ordinates with cdc42 and R-ras to control the formation of cell extensions that enable collagen tractional remodeling.
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Affiliation(s)
- P D Arora
- Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada
| | - K Nakajima
- Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada
| | - A Nanda
- Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada
| | - A Plaha
- Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada
| | - A Wilde
- Departments of Medical Genetics and Biochemistry, Faculty of Medicine, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - D B Sacks
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, MD 20892
| | - C A McCulloch
- Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada
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39
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Fushitani M, Sasaki Y, Matsuda A, Fujise H, Kawabe Y, Hashigaya K, Owada S, Togashi T, Nakajima K, Yabashi M, Hikosaka Y, Hishikawa A. Multielectron-Ion Coincidence Spectroscopy of Xe in Extreme Ultraviolet Laser Fields: Nonlinear Multiple Ionization via Double Core-Hole States. Phys Rev Lett 2020; 124:193201. [PMID: 32469563 DOI: 10.1103/physrevlett.124.193201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Ultrafast multiphoton ionization of Xe in strong extreme ultraviolet free-electron laser (FEL) fields (91 eV, 30 fs, 1.6×10^{12} W/cm^{2}) has been investigated by multielectron-ion coincidence spectroscopy. The electron spectra recorded in coincidence with Xe^{4+} show characteristic features associated with two-photon absorption to the 4d^{-2} double core-hole (DCH) states and subsequent Auger decay. It is found that the pathway via the DCH states, which has eluded clear identification in previous studies, makes a large contribution to the multiple ionization, despite the long FEL pulse duration compared with the lifetime of the 4d core-hole states.
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Affiliation(s)
- M Fushitani
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Y Sasaki
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - A Matsuda
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - H Fujise
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Y Kawabe
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - K Hashigaya
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - S Owada
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
| | - T Togashi
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
| | - K Nakajima
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
| | - M Yabashi
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
| | - Y Hikosaka
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Institute of Liberal Arts and Sciences, University of Toyama, Toyama 930-0194, Japan
| | - A Hishikawa
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
- RIKEN, SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Research Center for Materials Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
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Doi T, Hirai S, Kaneko M, Ohashi S, Nakajima K, Oguchi F, Kato S, Taniguchi Y, Matsubayashi Y, Hayashi N, Tanaka S, Oshima Y. Bone strength of the proximal femur in healthy subjects with ossification of the posterior longitudinal ligament. Osteoporos Int 2020; 31:757-763. [PMID: 31814062 DOI: 10.1007/s00198-019-05253-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 12/01/2019] [Indexed: 10/25/2022]
Abstract
UNLABELLED We compared the bone strength measured via quantitative computed tomography-based finite element method (QCT/FEM) between healthy adults with and without ossification of the posterior longitudinal ligament (OPLL). No statistically significant difference was observed in the bone strength between healthy adults with and without OPLL. Hyperostosis of the posterior longitudinal ligament in OPLL may not be associated with the systemic bone strength. INTRODUCTION Although patients with OPLL have been reportedly associated with increased level of bone mineral density (BMD) using dual-energy X-ray absorptiometry (DXA), little is known about the bone strength in OPLL subjects. The aim of this study is to investigate the bone strength measured via QCT/FEM in healthy subjects with OPLL using the medical check-up data, including whole-body CT scans. METHODS We examined 796 participants (529 men and 267 women) who underwent CT scans in a single health center between January 2008 and May 2009. We identified OPLL in whole spine and divided the subjects into two groups: non-OPLL and OPLL groups. We calculated the predicted bone strength (PBS) of the proximal femur using QCT/FEM and examined the bone mineral status of the calcaneus using quantitative ultrasound (QUS). We compared the PBS and the QUS parameters between the non-OPLL and OPLL groups. RESULTS Seventy-four subjects (9.3%; 57 men and 17 women) were diagnosed with OPLL in the whole spine. The OPLL group was significantly older than the non-OPLL group. No statistically significant difference was observed in the PBS and the QUS parameters between the non-OPLL and OPLL groups in both sexes. Furthermore, no statistically significant difference was noted in the PBS and the QUS parameters between two groups in age- and gender-matched analysis. CONCLUSIONS Our results suggest that hyperostosis of the posterior longitudinal ligament in OPLL may not be associated with bone strength and bone mineral status at the extremities.
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Affiliation(s)
- T Doi
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - S Hirai
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - M Kaneko
- Department of Orthopaedic Surgery, Kanto Rosai Hospital, 1-1 Kizukisumiyoshi-cho, Nakahara-ku, Kawasaki, Kanagawa, Japan
| | - S Ohashi
- Department of Orthopaedic Surgery, National Hospital Organization, Sagamihara Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, Kanagawa, Japan
| | - K Nakajima
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - F Oguchi
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - S Kato
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Y Taniguchi
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Y Matsubayashi
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - N Hayashi
- Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Y Oshima
- Department of Orthopaedic Surgery, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan.
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Tetsuno K, Ajimura S, Akutagawa K, Batpurev T, Chan WM, Fushimi K, Hazama R, Iida T, Ikeyama Y, Khai BT, Kishimoto T, Lee KK, Li X, Matsuoka K, Matsuoka K, Mizukoshi K, Mori Y, Nakajima K, Noithong P, Nomachi M, Ogawa I, Ohsumi H, Ozawa K, Shimizu K, Shokati M, Soberi F, Suzuki K, Takemoto Y, Takihira Y, Tamagawa Y, Tozawa M, Trang VTT, Umehara S, Yamamoto K, Yoshida S, Kim I, Kwon DH, Kim HL, Lee HJ, Lee MK, Kim YH. Status of 48Ca double beta decay search and its future prospect in CANDLES. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/1742-6596/1468/1/012132] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Nakajima K. Analysis of volume-phase-grating characteristics that a variety of refractive index distributions influence. Part 2: Analysis of spectral bandwidths and angular bandwidths, and the derivation of these equations. J Opt Soc Am A Opt Image Sci Vis 2019; 36:2129-2137. [PMID: 31873389 DOI: 10.1364/josaa.36.002129] [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] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 11/03/2019] [Indexed: 06/10/2023]
Abstract
To expand the spectral bandwidths with high diffraction efficiency of volume phase (VP) gratings, it is important to know the influence of a variety of refractive index distributions (RIDs) inside the recording material on the bandwidths. The influence of various graded types of RIDs on the full width at half the maximum of the spectral bandwidth (${\lambda _{\rm FWHM}}$λFWHM) and the angular bandwidth (${\theta _{\rm FWHM}}$θFWHM) is investigated in the Bragg regime. It becomes clear that various graded types of RIDs influence their bandwidths and the characteristics, and the combination of the RIDs and refractive index modulation (${{ n}_m}$nm) is the most important factor for obtaining the large bandwidths of VP gratings. Theoretically, the ${\lambda _{\rm FWHM}}$λFWHM are obtained as the values of 149.7 nm and 257.6 nm (${{ n}_m} = {0.045}$nm=0.045) for the wavelengths of 900 nm and 1550 nm, respectively. Furthermore, I have succeeded in developing the expression for ${\lambda _{\rm FWHM}}$λFWHM and ${\theta _{\rm FWHM}}$θFWHM, using the proportional characteristics of VP gratings investigated in this work. The correlative coupling-length coefficients "G-factors" devised as a variety of RID functions in the previous paper are introduced into them. It is apparent that the derived equations of the bandwidths can be adapted to any graded type of RID that changes continuously from a triangular type to a rectangular type of VP grating, which has not been reported yet. The equations have made it easy to design ${\lambda _{\rm FWHM}}$λFWHM and ${\theta _{\rm FWHM}}$θFWHM of VP gratings.
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Nakajima K. Analysis of volume-phase-grating characteristics that a variety of refractive index distributions influence. Part 1: derivation of coupling coefficients and grating thickness, and characteristics of the G-factors. J Opt Soc Am A Opt Image Sci Vis 2019; 36:1861-1870. [PMID: 31873697 DOI: 10.1364/josaa.36.001861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
The equations for the coupling coefficient and the grating thickness of volume phase gratings are derived from Maxwell's equations in this work. The equations cover all graded types of refractive index distributions (RIDs) which change continuously from a triangular type to a rectangular type. The functions expressed as various graded types of RIDs, which are proposed in this work, are used among them. Furthermore, the new idea, which is the correlative coupling-length coefficient, is devised for the first time as a variety of RID function, "G-factor." The results based on the coupled mode theory in this work show a very close agreement under 0.2% with the results of the rigorous coupled-wave analysis method. The values of the grating thickness and the G-factor are confirmed with validity. By means of this new method, not only can the grating thickness of any graded type of VP grating which is under the Bragg condition be obtained very easily, but the spectral bandwidths and the angular bandwidths which are not under the Bragg condition can be controlled very easily and the configurations of RIDs can be estimated as well.
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Kamakura T, Nakajima K, Kataoka N, Wada M, Yamagata K, Ishibashi K, Inoue Y, Miyamoto K, Nagase S, Noda T, Aiba T, Yasuda S, Kusano K. P5655Efficacy of new-generation atrial antitachycardia pacing for atrial tachyarrhythmias in patients with left ventricular dysfunction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The progression to persistent atrial fibrillation (AF) is associated with a worse clinical outcome in patients with previous atrial tachyarrhythmias. New-generation atrial antitachycardia pacing (ATP) (Reactive ATP) reduced the progression to persistent AF in patients with pacemaker and preserved left ventricular (LV) function. However, little is known about the efficacy of Reactive ATP in patients with cardiac implantable electronic devices (CIED) and LV dysfunction.
Purpose
We aimed to investigate the efficacy of Reactive ATP for atrial tachyarrhythmias in patients with LV dysfunction (LV ejection fraction [LVEF] <40%).
Methods
This study included 423 patients with CIED and previous atrial tachyarrthythmias. Reactive ATP was programmed in 284 patients (ATP group) and 139 were implanted with a dual-chamber device without ATP function (control group). The differences in the success rate of ATP and incidence of progression to persistent AF (≥7 days) between the ATP and control groups were evaluated in 108 patients with LVEF <40% (reduced LVEF) and 315 with LVEF ≥40% (preserved LVEF). Patients with persistent AF were excluded from this study.
Results
During 710±337 days of follow-up period, 16 patients (15%) with reduced LVEF and 51 (16%) with preserved LVEF progressed to persistent AF (p=0.88). The mean ATP success rate was lower in patients with reduced LVEF than in those with preserved LVEF, although not statistically significant (reduced LVEF: 27.2±19.4% and preserved LVEF: 35.1±29.2%, p=0.12). The incidence of progression to persistent AF was significantly lower in the ATP group than in the control group both in patients with reduced and preserved LVEF (log-rank, reduced LVEF: p=0.0070 and preserved LVEF: p<0.0001) (Figure). Multivariate analysis showed that use of Reactive ATP and smaller left atrium were associated with lower incidences of persistent AF, while LVEF was not predictive of progression to persistent AF (Reactive ATP: hazard ratio [HR] 0.28, 95% confidence interval [CI] 0.17–0.46, p<0.0001, left atrium diameter: HR 1.03, 95% CI 1.00–1.07, p=0.030).
Figure 1
Conclusions
Reactive ATP was effective in preventing AF progression in patients with LV dysfunction.
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Affiliation(s)
- T Kamakura
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Nakajima
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - N Kataoka
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - M Wada
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Yamagata
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Ishibashi
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - Y Inoue
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Miyamoto
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Nagase
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Noda
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - T Aiba
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - S Yasuda
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
| | - K Kusano
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Suita, Japan
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Kajiura S, Chikaoka S, Yokota T, Kadota A, Fukai S, Matsushita T, Hayashi N, Yagi Y, Ryu N, Horikawa H, Takemura K, Furuichi A, Nakajima K, Moto I, Nanjyo S, Mihara H, Ando T, Murakami N, Yasuda I, Hayashi R. The relationship between naldemedine administration and the maximum dose of oral opioids. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz261.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nakajima K, Kataoka S, Sano S. LB1047 Stat3 activation in epidermal keratinocytes induces Langerhans cell activation to form an essential circuit for psoriasis via IL-23 production. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Nakajima K, Iwata H, Hattori Y, Hashimoto S, Hayashi K, Toshito T, Baba F, Sasaki S, Mizoe J, Ogino H, Shibamoto Y. Image-guided Proton Therapy (IGPT) for Oligometastatic Liver Tumors from Gastric/Colorectal Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Iwata H, Nakajima K, Omachi C, Toshito T, Nomura K, Nagayoshi J, Ogino H, Shibamoto Y. Gene Expression Profiling in HeLa Cells After Proton and X-Ray Irradiation with Cisplatin. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nomura K, Iwata H, Toshito T, Omachi C, Nagayoshi J, Hashimoto S, Nakajima K, Ogino H, Shibamoto Y. Biological Effects of Spot Scanning and Passive Scattering Proton Beams at the Distal End of the Spread-Out Bragg Peak (SOBP) in Single Cells and Multicell Spheroids. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Okuda K, Nakajima K, Saito H, Ito T, Kikuchi A, Yoneyama H, Shibutani T, Onoguchi M, Matsuo S, Hashimoto M, Kinuya S. P126Texture analysis of myocardial perfusion SPECT with a digital cardiac phantom. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez147.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Okuda
- Kanazawa Medical University, Physics, Ishikawa, Japan
| | - K Nakajima
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
| | - H Saito
- Kanazawa Medical University, Ishikawa, Japan
| | - T Ito
- Saiseikai Yokohamashi Tobu Hospital, Radiology, Yokohama, Japan
| | - A Kikuchi
- Hokkaido University of Science, Radiological Technology, Sapporo, Japan
| | - H Yoneyama
- Kanazawa University Hospital, Radiological Technology, Kanazawa, Japan
| | - T Shibutani
- Kanazawa University, Quantum Medical Technology, Kanazawa, Japan
| | - M Onoguchi
- Kanazawa University, Quantum Medical Technology, Kanazawa, Japan
| | - S Matsuo
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
| | - M Hashimoto
- Kanazawa Medical University, Physics, Ishikawa, Japan
| | - S Kinuya
- Kanazawa University Hospital, Nuclear Medicine, Kanazawa, Japan
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