1
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Morgado BE, Sicardy B, Braga-Ribas F, Ortiz JL, Salo H, Vachier F, Desmars J, Pereira CL, Santos-Sanz P, Sfair R, de Santana T, Assafin M, Vieira-Martins R, Gomes-Júnior AR, Margoti G, Dhillon VS, Fernández-Valenzuela E, Broughton J, Bradshaw J, Langersek R, Benedetti-Rossi G, Souami D, Holler BJ, Kretlow M, Boufleur RC, Camargo JIB, Duffard R, Beisker W, Morales N, Lecacheux J, Rommel FL, Herald D, Benz W, Jehin E, Jankowsky F, Marsh TR, Littlefair SP, Bruno G, Pagano I, Brandeker A, Collier-Cameron A, Florén HG, Hara N, Olofsson G, Wilson TG, Benkhaldoun Z, Busuttil R, Burdanov A, Ferrais M, Gault D, Gillon M, Hanna W, Kerr S, Kolb U, Nosworthy P, Sebastian D, Snodgrass C, Teng JP, de Wit J. Author Correction: A dense ring of the trans-Neptunian object Quaoar outside its Roche limit. Nature 2024; 626:E2. [PMID: 38228877 DOI: 10.1038/s41586-024-07031-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Affiliation(s)
- B E Morgado
- Federal University of Rio de Janeiro - Observatory of Valongo, Rio de Janeiro, Brazil.
- National Observatory/MCTI, Rio de Janeiro, Brazil.
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil.
| | - B Sicardy
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
| | - F Braga-Ribas
- Federal University of Technology, Paraná (UTFPR/DAFIS), Curitiba, Brazil
| | - J L Ortiz
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - H Salo
- Space Physics and Astronomy Research unit, University of Oulu, Oulu, Finland
| | - F Vachier
- The Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE), Observatory of Paris, PSL Research University, CNRS, Sorbonne University, UPMC University of Paris, University of Lille, Lille, France
| | - J Desmars
- The Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE), Observatory of Paris, PSL Research University, CNRS, Sorbonne University, UPMC University of Paris, University of Lille, Lille, France
- Polytechnic Institute of Advanced Sciences (IPSA), Ivry-sur-Seine, France
| | - C L Pereira
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - P Santos-Sanz
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - R Sfair
- Institute for Astronomy and Astrophysics, Eberhard Karls University of Tübingen, Tübingen, Germany
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - T de Santana
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - M Assafin
- Federal University of Rio de Janeiro - Observatory of Valongo, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - R Vieira-Martins
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - A R Gomes-Júnior
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
- Institute of Physics, Federal University of Uberlândia, Uberlândia, Brazil
| | - G Margoti
- Federal University of Technology, Paraná (UTFPR/DAFIS), Curitiba, Brazil
| | - V S Dhillon
- Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
- Institute of Astrophysics of The Canary Islands, La Laguna, Spain
| | | | - J Broughton
- Reedy Creek Observatory, Gold Coast, Queensland, Australia
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - J Bradshaw
- Samford Valley Observatory (Q79), Brisbane, Queensland, Australia
| | - R Langersek
- Algester Astronomical Observatory, Brisbane, Queensland, Australia
| | - G Benedetti-Rossi
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - D Souami
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
- Observatory of the Côte d'Azur, Lagrange Laboratory UMR7293 CNRS, Nice, France
- naXys, University of Namur, Namur, Belgium
| | - B J Holler
- Space Telescope Science Institute, Baltimore, MD, USA
| | - M Kretlow
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
- International Occultation Timing Association / European Section, Hannover, Germany
- International Amateur Observatory e.V. (IAS), Mittenwalde, Germany
| | - R C Boufleur
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - J I B Camargo
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - R Duffard
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - W Beisker
- International Occultation Timing Association / European Section, Hannover, Germany
- International Amateur Observatory e.V. (IAS), Mittenwalde, Germany
| | - N Morales
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - J Lecacheux
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
| | - F L Rommel
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - D Herald
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - W Benz
- Institute of Physics, University of Bern, Bern, Switzerland
- Center for Space and Habitability, University of Bern, Bern, Switzerland
| | - E Jehin
- STAR Institute, University of Liège, Liège, Belgium
| | - F Jankowsky
- Heidelberg-Königstuhl State Observatory, Heidelberg, Germany
| | - T R Marsh
- Department of Physics, University of Warwick, Coventry, UK
| | - S P Littlefair
- Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
| | - G Bruno
- INAF, Catania Astrophysical Observatory, Catania, Italy
| | - I Pagano
- INAF, Catania Astrophysical Observatory, Catania, Italy
| | - A Brandeker
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - A Collier-Cameron
- Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
| | - H G Florén
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - N Hara
- Astronomical Observatory at the University of Geneva, Versoix, Switzerland
| | - G Olofsson
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - T G Wilson
- Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
| | - Z Benkhaldoun
- Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, FSSM, Cadi Ayyad University, Marrakech, Morocco
| | - R Busuttil
- School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - A Burdanov
- Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, USA
| | - M Ferrais
- Laboratory of Astrophysics of Marseille, University of Aix Marseille, CNRS, CNES, Marseille, France
| | - D Gault
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - M Gillon
- Astrobiology Research Unit, University of Liège, Liège, Belgium
| | - W Hanna
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - S Kerr
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
- Astronomical Association of Queensland, Pimpama, Queensland, Australia
| | - U Kolb
- School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - P Nosworthy
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - D Sebastian
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
| | - C Snodgrass
- Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh, UK
| | - J P Teng
- AGORA Observatory of Makes, AGORA, La Rivière, France
| | - J de Wit
- Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, USA
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Suenaga A, Tazaki J, Tatsushima S, Fujita T, Hara N, Tsuji S, Iseda T, Kimura T, Shibamori Y, Nomura S, Yoshida A, Hatamura M, Sakamoto R, Hirao S, Kanemitsu N, Toyofuku M. Ruptured mycotic coronary artery aneurysm hybrid treatment with covered stent and surgical debridement. J Cardiol Cases 2023; 28:144-146. [PMID: 37818433 PMCID: PMC10562108 DOI: 10.1016/j.jccase.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/08/2023] [Accepted: 05/12/2023] [Indexed: 10/12/2023] Open
Abstract
We present a case of a ruptured mycotic coronary aneurysm effectively treated with covered stents and phased surgery. The covered stent, however, became occluded two years later. Because of the low invasiveness, a covered stent treatment may be advantageous over conventional surgery but trade off long-term vascular patency. Learning objective To recognize the presence of a ruptured infectious coronary aneurysm after a primary coronary stenting for ST-elevation myocardial infarction.To discuss the treatment strategies for a ruptured infectious coronary aneurysm with a covered stent.
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Affiliation(s)
- Akihira Suenaga
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Junichi Tazaki
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Shojiro Tatsushima
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Takanari Fujita
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Noriko Hara
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Shuhei Tsuji
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Takahiro Iseda
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Tomoya Kimura
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Yuichiro Shibamori
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Shinnosuke Nomura
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Akinori Yoshida
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Miyu Hatamura
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Ryo Sakamoto
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Shingo Hirao
- Department of Cardiovascular Surgery, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Naoki Kanemitsu
- Department of Cardiovascular Surgery, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
| | - Mamoru Toyofuku
- Department of Cardiology, Japanese Red Cross Wakayama Medical Center, Wakayama City, Japan
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3
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Morgado BE, Sicardy B, Braga-Ribas F, Ortiz JL, Salo H, Vachier F, Desmars J, Pereira CL, Santos-Sanz P, Sfair R, de Santana T, Assafin M, Vieira-Martins R, Gomes-Júnior AR, Margoti G, Dhillon VS, Fernández-Valenzuela E, Broughton J, Bradshaw J, Langersek R, Benedetti-Rossi G, Souami D, Holler BJ, Kretlow M, Boufleur RC, Camargo JIB, Duffard R, Beisker W, Morales N, Lecacheux J, Rommel FL, Herald D, Benz W, Jehin E, Jankowsky F, Marsh TR, Littlefair SP, Bruno G, Pagano I, Brandeker A, Collier-Cameron A, Florén HG, Hara N, Olofsson G, Wilson TG, Benkhaldoun Z, Busuttil R, Burdanov A, Ferrais M, Gault D, Gillon M, Hanna W, Kerr S, Kolb U, Nosworthy P, Sebastian D, Snodgrass C, Teng JP, de Wit J. A dense ring of the trans-Neptunian object Quaoar outside its Roche limit. Nature 2023; 614:239-243. [PMID: 36755175 DOI: 10.1038/s41586-022-05629-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 12/06/2022] [Indexed: 02/10/2023]
Abstract
Planetary rings are observed not only around giant planets1, but also around small bodies such as the Centaur Chariklo2 and the dwarf planet Haumea3. Up to now, all known dense rings were located close enough to their parent bodies, being inside the Roche limit, where tidal forces prevent material with reasonable densities from aggregating into a satellite. Here we report observations of an inhomogeneous ring around the trans-Neptunian body (50000) Quaoar. This trans-Neptunian object has an estimated radius4 of 555 km and possesses a roughly 80-km satellite5 (Weywot) that orbits at 24 Quaoar radii6,7. The detected ring orbits at 7.4 radii from the central body, which is well outside Quaoar's classical Roche limit, thus indicating that this limit does not always determine where ring material can survive. Our local collisional simulations show that elastic collisions, based on laboratory experiments8, can maintain a ring far away from the body. Moreover, Quaoar's ring orbits close to the 1/3 spin-orbit resonance9 with Quaoar, a property shared by Chariklo's2,10,11 and Haumea's3 rings, suggesting that this resonance plays a key role in ring confinement for small bodies.
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Affiliation(s)
- B E Morgado
- Federal University of Rio de Janeiro - Observatory of Valongo, Rio de Janeiro, Brazil.
- National Observatory/MCTI, Rio de Janeiro, Brazil.
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil.
| | - B Sicardy
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
| | - F Braga-Ribas
- Federal University of Technology, Paraná (UTFPR/DAFIS), Curitiba, Brazil
| | - J L Ortiz
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - H Salo
- Space Physics and Astronomy Research unit, University of Oulu, Oulu, Finland
| | - F Vachier
- The Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE), Observatory of Paris, PSL Research University, CNRS, Sorbonne University, UPMC University of Paris, University of Lille, Lille, France
| | - J Desmars
- The Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE), Observatory of Paris, PSL Research University, CNRS, Sorbonne University, UPMC University of Paris, University of Lille, Lille, France
- Polytechnic Institute of Advanced Sciences (IPSA), Ivry-sur-Seine, France
| | - C L Pereira
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - P Santos-Sanz
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - R Sfair
- Institute for Astronomy and Astrophysics, Eberhard Karls University of Tübingen, Tübingen, Germany
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - T de Santana
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - M Assafin
- Federal University of Rio de Janeiro - Observatory of Valongo, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - R Vieira-Martins
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - A R Gomes-Júnior
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
- Institute of Physics, Federal University of Uberlândia, Uberlândia, Brazil
| | - G Margoti
- Federal University of Technology, Paraná (UTFPR/DAFIS), Curitiba, Brazil
| | - V S Dhillon
- Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
- Institute of Astrophysics of The Canary Islands, La Laguna, Spain
| | | | - J Broughton
- Reedy Creek Observatory, Gold Coast, Queensland, Australia
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - J Bradshaw
- Samford Valley Observatory (Q79), Brisbane, Queensland, Australia
| | - R Langersek
- Algester Astronomical Observatory, Brisbane, Queensland, Australia
| | - G Benedetti-Rossi
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - D Souami
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
- Observatory of the Côte d'Azur, Lagrange Laboratory UMR7293 CNRS, Nice, France
- naXys, University of Namur, Namur, Belgium
| | - B J Holler
- Space Telescope Science Institute, Baltimore, MD, USA
| | - M Kretlow
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
- International Occultation Timing Association / European Section, Hannover, Germany
- International Amateur Observatory e.V. (IAS), Mittenwalde, Germany
| | - R C Boufleur
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - J I B Camargo
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - R Duffard
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - W Beisker
- International Occultation Timing Association / European Section, Hannover, Germany
- International Amateur Observatory e.V. (IAS), Mittenwalde, Germany
| | - N Morales
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - J Lecacheux
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
| | - F L Rommel
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - D Herald
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - W Benz
- Institute of Physics, University of Bern, Bern, Switzerland
- Center for Space and Habitability, University of Bern, Bern, Switzerland
| | - E Jehin
- STAR Institute, University of Liège, Liège, Belgium
| | - F Jankowsky
- Heidelberg-Königstuhl State Observatory, Heidelberg, Germany
| | - T R Marsh
- Department of Physics, University of Warwick, Coventry, UK
| | - S P Littlefair
- Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
| | - G Bruno
- INAF, Catania Astrophysical Observatory, Catania, Italy
| | - I Pagano
- INAF, Catania Astrophysical Observatory, Catania, Italy
| | - A Brandeker
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - A Collier-Cameron
- Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
| | - H G Florén
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - N Hara
- Astronomical Observatory at the University of Geneva, Versoix, Switzerland
| | - G Olofsson
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - T G Wilson
- Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
| | - Z Benkhaldoun
- Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, FSSM, Cadi Ayyad University, Marrakech, Morocco
| | - R Busuttil
- School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - A Burdanov
- Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, USA
| | - M Ferrais
- Laboratory of Astrophysics of Marseille, University of Aix Marseille, CNRS, CNES, Marseille, France
| | - D Gault
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - M Gillon
- Astrobiology Research Unit, University of Liège, Liège, Belgium
| | - W Hanna
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - S Kerr
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
- Astronomical Association of Queensland, Pimpama, Queensland, Australia
| | - U Kolb
- School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - P Nosworthy
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - D Sebastian
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
| | - C Snodgrass
- Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh, UK
| | - J P Teng
- AGORA Observatory of Makes, AGORA, La Rivière, France
| | - J de Wit
- Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, USA
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4
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Hara N, Tang X, Islam H. PD-L1 Expression in Cytological and Histological Lung Cancer Specimens. Am J Clin Pathol 2022. [DOI: 10.1093/ajcp/aqac126.318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract
Introduction/Objective
Several studies have explored the feasibility of measuring PD-L1 in cell block cytology and indicated cytological materials could be a reliable source for PD-L1 evaluation in non-small cell lung carcinoma patients. A few studies have investigated the compatibility and performance of PD-L1 clone SP263 testing between cytology and histology specimens. The study was pursued to evaluate PD-L1 expression in cell blocks from EBUS- TBNA compared to that in biopsied tissues from patients with lung carcinoma in our institution to evaluate a feasibility of PD-L1 clone SP263 in cell blocks and histology samples.
Methods/Case Report
A total of 57 specimens cytologically diagnosed lung carcinoma using endobronchial ultrasound guided transbronchial needle aspiraton (EBUS-TBNA) from Jan 1st, 2020, to Dec 31st, 2021 were screened for enrollment. Among them, 24 patients diagnosed with lung carcinoma using EBUS-TBNA and matched transbronchial biopsy (TBB) specimens were reviewed for study. After careful selection, 13 paired formalin-fixed tissues from lung carcinoma patients, including cell blocks and matched histology samples, were included. PD-L1 expression was assessed using the SP263 assay, and the tumor proportion score (TPS) was evaluated. PD-L1 expression was finally divided into three categories according to the TPS: < 1% (negative), 1–49% (low expression) and ≥ 50% (high expression).
Results (if a Case Study enter NA)
Of the 13 matched pairs, 12 (92.3%) showed concordant PD-L1 expression. On cytology, 3 cases were positive (2 high expressors and 1 low- expressors) of which 2 were concordant and 1 discordant with matched histology specimens. Ten cytology samples were negative for PD-L1 expression, and they were concordant to histology samples. The correlation coefficient for TPS was 0.75 considered as having good value. Conclusion: With an overall concordance rate of 92.3% between cytology and histology specimen, this study demonstrates the feasibility of PD-L1 IHC with SP263 clone on limited quality and quantity of cytology samples from lung carcinoma in our institute. It is required for further evaluation with additional specimens to conclude that the usefulness of cytology cell blocks for PD-L1 expression analysis.
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Affiliation(s)
- N Hara
- Pathology, Westchester Medical Center , Valhalla, New York , United States
| | - X Tang
- Pathology, Westchester Medical Center , Valhalla, New York , United States
| | - H Islam
- Pathology, Westchester Medical Center , Valhalla, New York , United States
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5
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Hara N, Volpi S, Yates M, Corredor C, Shipolini A. 472 Accuracy of Documentation and Handover of Surgical Operation Details in Cardiac Surgery. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Introduction
GMC Good Medical Practice Guideline states that documentation must be clear, accurate and legible. Accurate documentation of operation notes ensures proper postoperative care and forms important legal documents. This audit aims to assess the accurateness and consistency of recorded operation names throughout patients’ hospital stay following cardiac surgery, as well as the effect of standardisation of operation names to improve the accuracy of documentation.
Method
Patients undergoing cardiac surgery at St. Bartholomew's Hospital from November 29 to December 10, 2021, had data prospectively collected from their electronic patient records, which were compared to the standardised operation name. After the first audit cycle, junior medical staff were educated on the standardisation of operation names. Electronic patient records were reviewed again for patients undergoing cardiac surgery from January 10 to January 20, 2022.
Results
Following intervention, there were significant improvements in the accuracy of documented operation details. Initially, 65% of operation notes were accurately documented, whereas 96% of operation notes were completed to the ideal standard post-intervention. There was a 37% increase in the number of accurate discharge summaries, while inaccuracies and missing operation names were reduced to 0% from the initial 12%.
Conclusions
Accurate documentation of operation details is expected by GMC standards. Poor documentation can hinder the quality-of-care patients receive postoperatively. We have shown variation in descriptions of standard operations and multiple inaccuracies throughout patients’ hospital stay. We suggest agreed standardisation of operation details and education of junior medical staff regarding accuracy of documentation to enhance compliance with the GMC standard.
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Affiliation(s)
- N Hara
- Barts and the London School of Medicine and Dentistry , London , United Kingdom
| | - S Volpi
- St. Bartholomew's Hospital , London , United Kingdom
| | - M Yates
- St. Bartholomew's Hospital , London , United Kingdom
| | - C Corredor
- St. Bartholomew's Hospital , London , United Kingdom
| | - A Shipolini
- St. Bartholomew's Hospital , London , United Kingdom
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6
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Hara N, Oobuchi J, Isobe A, Sugimoto S, Takatsu J, Sasai K. Generation of ozone during irradiation using medical linear accelerators: an experimental study. Radiat Oncol 2022; 17:39. [PMID: 35193627 PMCID: PMC8864795 DOI: 10.1186/s13014-022-02005-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 02/03/2022] [Indexed: 11/16/2022] Open
Abstract
Background Some patients have noted a foul odor during radiation therapy sessions, but the cause of the odor remains unknown. Since we suspected that this phenomenon is due to ozone generated by ionizing radiation, this experimental study measured ozone concentrations in the treatment room and in a coiled polyvinyl chloride (PVC) tube placed within the radiation field. Methods We measured ozone concentrations using an ultraviolet absorption method and an ozone monitor. A PVC tube (inner diameter 7 mm, outer diameter 10 mm) was used to mimic the environment of the nasal cavity. The tube (790 cm) was coiled and set between two 4-cm-thick (for X-rays) or 2-cm-thick (for electron beams) water-equivalent solid phantoms. The sampling tube of the ozone monitor was inserted into the PVC tube, and the joint was sealed to prevent environmental air contamination. To measure ozone concentrations in the atmosphere, the sampling tube supplied with the unit was used. A linac was used on a full-sized treatment field (40 cm × 40 cm at a source-to-axis distance of 100 cm). The effect of an electron beam on ozone concentrations was also evaluated with a full-sized treatment field (40 cm × 40 cm at a source-to-surface distance of 100 cm). Results Ozone levels in the treatment room were undetectable before the start of daily treatment but reached 0.008 parts per million (ppm) or more at 1 h after the start of treatment. Concentrations then remained nearly constant at 0.010–0.015 ppm throughout the day. The maximum ozone concentration in the PVC tube was only 0.006 ppm, even when it was irradiated at 2400 monitor units/min. Depending on the X-ray dose rate, the concentration increased to a maximum of 0.010 ppm with oxygen flowing into the other end of the tube at 1.5 L/min. Ozone concentrations in the PVC tube did not differ significantly between X-ray and electron-beam irradiation. Conclusions Only traces of ozone were found in the PVC tube that was used to mimic the nasal passages during radiation, these concentrations were too low for human perception. However, ozone concentrations did reach potentially detectable levels in the treatment room. Supplementary Information The online version contains supplementary material available at 10.1186/s13014-022-02005-6.
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Kastirke G, Ota F, Rezvan DV, Schöffler MS, Weller M, Rist J, Boll R, Anders N, Baumann TM, Eckart S, Erk B, De Fanis A, Fehre K, Gatton A, Grundmann S, Grychtol P, Hartung A, Hofmann M, Ilchen M, Janke C, Kircher M, Kunitski M, Li X, Mazza T, Melzer N, Montano J, Music V, Nalin G, Ovcharenko Y, Pier A, Rennhack N, Rivas DE, Dörner R, Rolles D, Rudenko A, Schmidt P, Siebert J, Strenger N, Trabert D, Vela-Perez I, Wagner R, Weber T, Williams JB, Ziolkowski P, Schmidt LPH, Czasch A, Tamura Y, Hara N, Yamazaki K, Hatada K, Trinter F, Meyer M, Ueda K, Demekhin PV, Jahnke T. Investigating charge-up and fragmentation dynamics of oxygen molecules after interaction with strong X-ray free-electron laser pulses. Phys Chem Chem Phys 2022; 24:27121-27127. [DOI: 10.1039/d2cp02408j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The X-ray-induced charge-up and fragmentation process of a small molecule is examined in great detail by measuring the molecular-frame photoelectron interference pattern in conjunction with other observables in coincidence.
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Affiliation(s)
- G. Kastirke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - F. Ota
- Department of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - D. V. Rezvan
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - M. S. Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Weller
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - J. Rist
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - R. Boll
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - N. Anders
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - T. M. Baumann
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - S. Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - B. Erk
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - A. De Fanis
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - K. Fehre
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - A. Gatton
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - S. Grundmann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - P. Grychtol
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - A. Hartung
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Hofmann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Ilchen
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - C. Janke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Kircher
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Kunitski
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - X. Li
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - T. Mazza
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - N. Melzer
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - J. Montano
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - V. Music
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - G. Nalin
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - Y. Ovcharenko
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - A. Pier
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - N. Rennhack
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - D. E. Rivas
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - R. Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - D. Rolles
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - A. Rudenko
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - Ph. Schmidt
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - J. Siebert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - N. Strenger
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - D. Trabert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - I. Vela-Perez
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - R. Wagner
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Th. Weber
- Lawrence Berkeley National Laboratory, Chemical Sciences Division, Berkeley, California 94720, USA
| | - J. B. Williams
- Department of Physics, University of Nevada, Reno, Nevada 89557, USA
| | - P. Ziolkowski
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - L. Ph. H. Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - A. Czasch
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - Y. Tamura
- Department of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - N. Hara
- Department of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - K. Yamazaki
- RIKEN Center for Advanced Photonics, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - K. Hatada
- Department of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - F. Trinter
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
- Molecular Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - M. Meyer
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - K. Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
- Department of Chemistry, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai, 980-8578, Japan
| | - Ph. V. Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - T. Jahnke
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
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Abstract
The poster describes a project which analyzes interactions between laypeople and experts via social media. Our aim is to understand how experts and the general public interact with each other on social media, and how we can use current data to improve these interactions in the future. We created a Twitter bot to obtain data from 15 COVID-19 experts and 7 federal government-sponsored public health organizations from English-speaking countries. The data were analyzed in R to investigate the relationships among Followers, Favorites, Retweets, and Hashtag Count per tweet. The preliminary analysis indicated statistically significant differences between various variables including: Number of Favorites, Number of Retweets, Number of Hashtags, and Number of Followers; the results shed light on the current relationship between the public and experts on social media.
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Jaramillo A, Hara N, Harder A, Needell J, Vladar E, Evans C. 351: Mechanisms of cysteine-mediated mucin C-terminal polymerization. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01775-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Mitsui K, Lee T, Miyazaki R, Hara N, Nagamine S, Nakamura T, Terui M, Okata S, Nagase M, Nitta G, Watanabe K, Kaneko M, Nagata Y, Nozato T, Ashikaga T. Drug-coated balloon versus drug-eluting stent following orbital atherectomy for calcified coronary artery: one-year outcomes of a retrospective cohort study. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2143] [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
Percutaneous coronary intervention (PCI) for calcified coronary artery remains challenging in the drug-eluting stent (DES) era. The effectiveness of drug-coated balloons (DCBs) and orbital atherectomy system (OAS) is unknown.
Methods
In this retrospective, single-center study, we compared the use of DCBs with second- and third-generation DESs following orbital atherectomy (OA) for calcified de novo coronary lesions. All patients underwent PCI with intravascular imaging. The primary endpoint was major cardiac event, that was a composite of cardiac death, death for unknown cause, non-fatal myocardial infarction, or target lesion revascularization at 1 year.
Results
Between June 2018 and December 2019, 107 patients with coronary lesions were enrolled in this study and divided into two groups: 23 patients in DCB group and 84 patients in DES group. The post-procedure segment percentage diameter stenosis was 23.1% (interquartile range [IQR], 17.7 to 32.5) with DCB versus 14.4% (IQR, 10.0 to 21.2) with DES (P<0.001). Overall adverse event rate for PCI procedure was low: one dissection with DES group, no persistent slow/no-flow, and no perforation with both group. The primary endpoint was not significantly different between 2 groups [DES: 6.0% (5/84), DCB: 0.0% (0/23), log-rank P=0.24].
Conclusions
In calcified coronary artery disease, using DCB following OA is as safe and effective as using DES following OA with respect to 1-year clinical outcomes.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- K Mitsui
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - T Lee
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - R Miyazaki
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - N Hara
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - S Nagamine
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - T Nakamura
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - M Terui
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - S Okata
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - M Nagase
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - G Nitta
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - K Watanabe
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - M Kaneko
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - Y Nagata
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - T Nozato
- Japanese Red Cross Musashino Hospital, Musashino, Japan
| | - T Ashikaga
- Japanese Red Cross Musashino Hospital, Musashino, Japan
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11
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Nan H, Kim YJ, Tsuchiya M, Fukao T, Hara N, Hagihara A, Nishioka K, Hattori N, Hara N, Ikeuchi T, Ohtsuka T, Takiyama Y. A Novel Heterozygous Missense Variant in the CIAO1 Gene in a Family with Alzheimer's Disease: The Val67Ile Variant Promotes the Interaction of CIAO1 and Amyloid-β Protein Precursor. J Alzheimers Dis 2021; 84:599-605. [PMID: 34569959 PMCID: PMC8673532 DOI: 10.3233/jad-210706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Familial dementia is a rare inherited disease involving progressive impairment of memory, thinking, and behavior. We report a novel heterozygous pathogenic variant (c.199G > A, p.Val67Ile) in the CIAO1 gene that appears to be co-segregated with Alzheimer’s disease in a Japanese family. Biochemical analysis of CIAO1 protein revealed that the variant increases the interaction of CIAO1 with immature amyloid-β protein precursor (AβPP), but not mature or soluble AβPP, indicating plausible CIAO1 involvement in AβPP processing. Our study indicates that a heterozygous variant in the CIAO1 gene may be closely related to autosomal dominant familial dementia.
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Affiliation(s)
- Haitian Nan
- Department of Neurology, Graduate School of Medical Sciences, University of Yamanashi, Yamanashi, Japan
| | - Yeon-Jeong Kim
- Department of Biochemistry, Graduate School of Medical Sciences, University of Yamanashi, Yamanashi, Japan
| | - Mai Tsuchiya
- Department of Neurology, Graduate School of Medical Sciences, University of Yamanashi, Yamanashi, Japan
| | - Toko Fukao
- Department of Neurology, Graduate School of Medical Sciences, University of Yamanashi, Yamanashi, Japan
| | - Noriko Hara
- Department of Internal Medicine, Minobusan Hospital, Yamanashi, Japan
| | - Atsushi Hagihara
- Department of Internal Medicine, Minobusan Hospital, Yamanashi, Japan
| | - Kenya Nishioka
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - Norikazu Hara
- Department of Molecular Genetics, Brain Research Institute, Niigata University, Niigata, Japan
| | - Takeshi Ikeuchi
- Department of Molecular Genetics, Brain Research Institute, Niigata University, Niigata, Japan
| | - Toshihisa Ohtsuka
- Department of Biochemistry, Graduate School of Medical Sciences, University of Yamanashi, Yamanashi, Japan
| | - Yoshihisa Takiyama
- Department of Neurology, Graduate School of Medical Sciences, University of Yamanashi, Yamanashi, Japan
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12
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Hara N, Isobe A, Yamada K, Kosugi Y, Oshima M, Kawamoto T, Shikama N, Sasai K. Unusual visual and olfactory perceptions during radiotherapy sessions: an investigation of the organs responsible. J Radiat Res 2021; 62:718-725. [PMID: 33912958 PMCID: PMC8273799 DOI: 10.1093/jrr/rrab033] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 02/12/2021] [Indexed: 06/05/2023]
Abstract
During radiotherapy sessions to treat brain tumors or head-and-neck cancers, some patients experience unusual visual and/or olfactory perceptions. This prospective study sought to answer two questions: (i) what proportion of patients experience these unpleasant sensations?, and (ii) which organs are responsible? Eligible patients had brain or near-orbital tumors treated by helical tomotherapy. All were aged 10 years or older, able to communicate, and interviewed by a radiation oncologist at least once weekly during radiation therapy. If they had experienced such sensations, they were encouraged to join the second phase of the study. The patients were asked to indicate, using a button, when a sensation commenced and ended. The recorded data were collated with the treatment log. Thirty-eight consecutive patients were eligible. Twenty-six experienced visual and 13 olfactory sensations. The radiation doses to the organs related to the visual or olfactory sensations did not differ between patients who reported sensations and those who did not. Seventeen patients were enrolled in the second phase of the study. All 14 with visual sensations reported that the sensations occurred when the X-rays passed at eye level. Olfactory sensations were reported by eight out of nine patients when the X-rays passed through the olfactory epithelium and/or ethmoid sinus level. In conclusion, 68% of patients experienced visual sensations caused by X-rays passing through the level of the eyes, and 34% complained of olfactory sensations. With the exception of one patient, olfactory sensations occurred when the X-rays passed through the levels of the olfactory epithelium and/or ethmoid sinus.
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Affiliation(s)
- N Hara
- Department of Radiology, Juntendo University Hospital, Tokyo 113–8431, Japan
| | - A Isobe
- Department of Radiology, Juntendo University Hospital, Tokyo 113–8431, Japan
| | - K Yamada
- Department of Radiation Oncology, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan
| | - Y Kosugi
- Department of Radiation Oncology, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan
| | - M Oshima
- Department of Radiation Oncology, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan
| | - T Kawamoto
- Department of Radiation Oncology, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan
| | - N Shikama
- Department of Radiation Oncology, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan
| | - K Sasai
- Department of Radiation Oncology, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan
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13
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Chen H, Hara N, McKay C. Investigating mediated public engagement with science on the "science" subreddit: From the participants' perspective. PLoS One 2021; 16:e0249181. [PMID: 33909620 PMCID: PMC8081246 DOI: 10.1371/journal.pone.0249181] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 03/15/2021] [Indexed: 11/22/2022] Open
Abstract
While public engagement with science activities traditionally inhabits physical environments (i.e., museum exhibits), as the Internet becomes more ubiquitous, new types of public engagement with science mediated through information technologies have emerged. Instead of having scientific findings filtered through traditional mediators, scientists have begun to take advantage of social media in order to communicate directly with the general public. This paper focuses on technology mediated public engagement with science in an online environment, specifically the sub-Reddit called “r/science”, on a popular platform, Reddit, in which we investigated the factors contributing to user engagement and perceived effects of science communication from the users’ perspectives. The survey instrument including user engagement scales, perceived effects of science communication, and demographics were distributed among 2000 participants in the r/science Ask Me Anything (AMA) series. We analyzed 146 survey responses using descriptive statistics and ordinal logistic regression. The findings indicated that the participants were generally engaged compared to ones in other studies that used the same user engagement scales and perceived positive effects on science communication, except when it came to building trust. Furthermore, we found that time spent on this particular platform appeared to be the most important factor when it came to positive perceived effects of r/science AMAs. This type of mediated public engagement has been insufficiently investigated, most particularly in terms of the examination of participants’ perspectives. This void is addressed in this study. The findings from the study will also be informative to similar platforms that support mediated public engagement with science.
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Affiliation(s)
- Hui Chen
- Information & Library Science, Luddy School of Informatics, Computing & Engineering, Indiana University, Bloomington, Indiana, United States of America
- Department of Sociology, Indiana University, Bloomington, Indiana, United States of America
| | - Noriko Hara
- Information & Library Science, Luddy School of Informatics, Computing & Engineering, Indiana University, Bloomington, Indiana, United States of America
- * E-mail:
| | - Clinton McKay
- Information & Library Science, Luddy School of Informatics, Computing & Engineering, Indiana University, Bloomington, Indiana, United States of America
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14
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Ahn JK, Beckford B, Campbell M, Chen SH, Comfort J, Dona K, Farrington MS, Hanai K, Hara N, Haraguchi H, Hsiung YB, Hutcheson M, Inagaki T, Isoe M, Kamiji I, Kato T, Kim EJ, Kim JL, Kim HM, Komatsubara TK, Kotera K, Lee SK, Lee JW, Lim GY, Lin QS, Lin C, Luo Y, Mari T, Masuda T, Matsumura T, Mcfarland D, McNeal N, Miyazaki K, Murayama R, Nakagiri K, Nanjo H, Nishimiya H, Noichi Y, Nomura T, Nunes T, Ohsugi M, Okuno H, Redeker JC, Sanchez J, Sasaki M, Sasao N, Sato T, Sato K, Sato Y, Shimizu N, Shimogawa T, Shinkawa T, Shinohara S, Shiomi K, Shiraishi R, Su S, Sugiyama Y, Suzuki S, Tajima Y, Taylor M, Tecchio M, Togawa M, Toyoda T, Tung YC, Vuong QH, Wah YW, Watanabe H, Yamanaka T, Yoshida HY, Zaidenberg L. Study of the K_{L}→π^{0}νν[over ¯] Decay at the J-PARC KOTO Experiment. Phys Rev Lett 2021; 126:121801. [PMID: 33834796 DOI: 10.1103/physrevlett.126.121801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
The rare decay K_{L}→π^{0}νν[over ¯] was studied with the dataset taken at the J-PARC KOTO experiment in 2016, 2017, and 2018. With a single event sensitivity of (7.20±0.05_{stat}±0.66_{syst})×10^{-10}, three candidate events were observed in the signal region. After unveiling them, contaminations from K^{±} and scattered K_{L} decays were studied, and the total number of background events was estimated to be 1.22±0.26. We conclude that the number of observed events is statistically consistent with the background expectation. For this dataset, we set an upper limit of 4.9×10^{-9} on the branching fraction of K_{L}→π^{0}νν[over ¯] at the 90% confidence level.
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Affiliation(s)
- J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - B Beckford
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Campbell
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S H Chen
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - J Comfort
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - K Dona
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M S Farrington
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - K Hanai
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Hara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Haraguchi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - M Hutcheson
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - T Inagaki
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Isoe
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - I Kamiji
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Kato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - E J Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J L Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - H M Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - T K Komatsubara
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Kotera
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S K Lee
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J W Lee
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - G Y Lim
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - Q S Lin
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - C Lin
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - Y Luo
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Mari
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Masuda
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - T Matsumura
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - D Mcfarland
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - N McNeal
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Miyazaki
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - R Murayama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - K Nakagiri
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nanjo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nishimiya
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Noichi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Nomura
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - T Nunes
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Ohsugi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Okuno
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - J C Redeker
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - J Sanchez
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Sasaki
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - N Sasao
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - T Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Shimizu
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Shimogawa
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - T Shinkawa
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - S Shinohara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Shiomi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - R Shiraishi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Su
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Y Sugiyama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Suzuki
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - Y Tajima
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - M Taylor
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Tecchio
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Togawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Toyoda
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y-C Tung
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Q H Vuong
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y W Wah
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - H Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - T Yamanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Y Yoshida
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - L Zaidenberg
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
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15
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Sasai K, Hara N, Isobe A, Yamada K, Kosugi Y, Oshima M, Kawamoto T, Shikama N. Unusual Visual And Olfactory Perceptions During Radiotherapy Sessions: An Investigation Of The Organs Responsible. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Usui K, Isobe A, Hara N, Kawamoto T, Oshima M, Shikama N, Sasai K. Clinical Evaluation of a Rotational Set-up Correction Device for Multiple Brain Metastases Using Single-Isocenter Stereotactic Radiation Therapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Hara N, Abbazio J, Perkins K. An emerging form of public engagement with science: Ask Me Anything (AMA) sessions on Reddit r/science. PLoS One 2019; 14:e0216789. [PMID: 31091264 PMCID: PMC6519800 DOI: 10.1371/journal.pone.0216789] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 04/29/2019] [Indexed: 11/18/2022] Open
Abstract
Originally, online public engagement with science tended to be one directional—from experts to the general population via news media. Such an arrangement allowed for little to no direct interaction between the public and scientists. However, the emergence of social media has opened the door to meaningful engagement between scientists and the general public. The current study examines scientists’ perspectives on the interactions between laypeople and scientists by asking questions and sharing information on social media platforms, specifically, through Ask Me Anything (AMA) sessions on Reddit’s “Science” subreddit (r/science). By analyzing the content of six different r/science AMAs and surveying scientists who participated as r/science AMA hosts, our research attempts to gain a richer understanding of direct communication between scientists and lay audiences online. We had three main questions: (1) who are the participant scientists hosting r/science AMAs, (2) what are their experiences like as hosts, and (3) what type of discussions do they have on this platform? Survey results suggested that these scientists recognize the promising interactive nature of Reddit and are interested in continuing to use this platform as a tool for public engagement. Survey respondents generally had positive experiences as AMA hosts, but further research is needed to examine negative experiences. Overall, this study has significant implications for how scientists can engage public audiences online and more effectively communicate scientific findings to the general populace.
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Affiliation(s)
- Noriko Hara
- Information & Library Science, School of Informatics, Computing & Engineering, Indiana University, Bloomington, Indiana, United States of America
| | - Jessica Abbazio
- University of Minnesota Libraries, University of Minnesota Twin Cities, Minneapolis, Minnesota, United States of America
| | - Kathryn Perkins
- Information & Library Science, School of Informatics, Computing & Engineering, Indiana University, Bloomington, Indiana, United States of America
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18
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Tasaki M, Kasahara T, Kaidu M, Kawaguchi G, Hara N, Yamana K, Maruyama R, Takizawa I, Ishizaki F, Saito K, Nakagawa Y, Ikeda M, Umezu H, Nishiyama T, Aoyama H, Tomita Y. Low-Dose-Rate and High-Dose-Rate Brachytherapy for Localized Prostate Cancer in ABO-Incompatible Renal Transplant Recipients. Transplant Proc 2019; 51:774-778. [DOI: 10.1016/j.transproceed.2018.10.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 10/09/2018] [Indexed: 02/06/2023]
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19
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Ahn JK, Beckford B, Beechert J, Bryant K, Campbell M, Chen SH, Comfort J, Dona K, Hara N, Haraguchi H, Hsiung YB, Hutcheson M, Inagaki T, Kamiji I, Kawasaki N, Kim EJ, Kim JL, Kim YJ, Ko JW, Komatsubara TK, Kotera K, Kurilin AS, Lee JW, Lim GY, Lin C, Lin Q, Luo Y, Ma J, Maeda Y, Mari T, Masuda T, Matsumura T, Mcfarland D, McNeal N, Micallef J, Miyazaki K, Murayama R, Naito D, Nakagiri K, Nanjo H, Nishimiya H, Nomura T, Ohsugi M, Okuno H, Sasaki M, Sasao N, Sato K, Sato T, Sato Y, Schamis H, Seki S, Shimizu N, Shimogawa T, Shinkawa T, Shinohara S, Shiomi K, Su S, Sugiyama Y, Suzuki S, Tajima Y, Taylor M, Tecchio M, Togawa M, Tung YC, Wah YW, Watanabe H, Woo JK, Yamanaka T, Yoshida HY. Search for K_{L}→π^{0}νν[over ¯] and K_{L}→π^{0}X^{0} Decays at the J-PARC KOTO Experiment. Phys Rev Lett 2019; 122:021802. [PMID: 30720307 DOI: 10.1103/physrevlett.122.021802] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/14/2018] [Indexed: 06/09/2023]
Abstract
A search for the rare decay K_{L}→π^{0}νν[over ¯] was performed. With the data collected in 2015, corresponding to 2.2×10^{19} protons on target, a single event sensitivity of (1.30±0.01_{stat}±0.14_{syst})×10^{-9} was achieved and no candidate events were observed. We set an upper limit of 3.0×10^{-9} for the branching fraction of K_{L}→π^{0}νν[over ¯] at the 90% confidence level (C.L.), which improved the previous limit by almost an order of magnitude. An upper limit for K_{L}→π^{0}X^{0} was also set as 2.4×10^{-9} at the 90% C.L., where X^{0} is an invisible boson with a mass of 135 MeV/c^{2}.
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Affiliation(s)
- J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - B Beckford
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Beechert
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Bryant
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Campbell
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S H Chen
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - J Comfort
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - K Dona
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - N Hara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Haraguchi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - M Hutcheson
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - T Inagaki
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - I Kamiji
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Kawasaki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - E J Kim
- Division of Science Education, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - J L Kim
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - Y J Kim
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - J W Ko
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - T K Komatsubara
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Kotera
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - A S Kurilin
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Researches, Dubna, Moscow region 141980, Russia
| | - J W Lee
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - G Y Lim
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - C Lin
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - Q Lin
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y Luo
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - J Ma
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y Maeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Mari
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Masuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Matsumura
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - D Mcfarland
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - N McNeal
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Micallef
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Miyazaki
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - R Murayama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - D Naito
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Nakagiri
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nanjo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nishimiya
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Nomura
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - M Ohsugi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Okuno
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Sasaki
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - N Sasao
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - K Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Schamis
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S Seki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Shimizu
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Shimogawa
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - T Shinkawa
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - S Shinohara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Shiomi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - S Su
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Y Sugiyama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Suzuki
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - Y Tajima
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - M Taylor
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Tecchio
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Togawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y C Tung
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y W Wah
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - H Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - J K Woo
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - T Yamanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Y Yoshida
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
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20
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Iseri K, Iyoda M, Shikida Y, Inokuchi T, Morikawa T, Hara N, Hirano T, Shibata T. Rituximab for the treatment of type B insulin resistance syndrome: a case report and review of the literature. Diabet Med 2017; 34:1788-1791. [PMID: 29044634 DOI: 10.1111/dme.13524] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/12/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Type B insulin resistance syndrome is a rare disease characterized by refractory transient hyperglycaemia and severe insulin resistance associated with circulating anti-insulin receptor antibodies. A standardized treatment regimen for type B insulin resistance syndrome has yet to be established. CASE REPORT We report the case of a 64-year-old man undergoing haemodialysis for antineutrophil cytoplasmic antibody-associated vasculitis and diabetic nephropathy, who developed rapid onset of hyperglycaemia (glycated albumin 52.1%). Type B insulin resistance syndrome was diagnosed, on the basis of positivity for anti-insulin receptor antibodies and the man's autoimmune history of antineutrophil cytoplasmic antibody-associated vasculitis and idiopathic thrombocytopenic purpura. Although severe hyperglycaemia persisted in spite of corticosteroids and high-dose insulin therapy, rituximab treatment resulted in remarkable improvement of the man's severe insulin resistance and disappearance of anti-insulin receptor antibodies without any adverse effects. CONCLUSIONS According to a literature review of 11 cases in addition to the present case, rituximab appears to be a safe and effective strategy for the treatment of corticosteroid-resistant type B insulin resistance syndrome.
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Affiliation(s)
- K Iseri
- Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - M Iyoda
- Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Y Shikida
- Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - T Inokuchi
- Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - T Morikawa
- Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - N Hara
- Division of Diabetes, Metabolism and Endocrinology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - T Hirano
- Division of Diabetes, Metabolism and Endocrinology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - T Shibata
- Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
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21
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Hara N, Chen H, Ynalvez MA. Using egocentric analysis to investigate professional networks and productivity of graduate students and faculty in life sciences in Japan, Singapore, and Taiwan. PLoS One 2017; 12:e0186608. [PMID: 29045500 PMCID: PMC5646866 DOI: 10.1371/journal.pone.0186608] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 10/04/2017] [Indexed: 11/23/2022] Open
Abstract
Prior studies showed that scientists’ professional networks contribute to research productivity, but little work has examined what factors predict the formation of professional networks. This study sought to 1) examine what factors predict the formation of international ties between faculty and graduate students and 2) identify how these international ties would affect publication productivity in three East Asian countries. Face-to-face surveys and in-depth semi-structured interviews were conducted with a sample of faculty and doctoral students in life sciences at 10 research institutions in Japan, Singapore, and Taiwan. Our final sample consisted of 290 respondents (84 faculty and 206 doctoral students) and 1,435 network members. We used egocentric social network analysis to examine the structure of international ties and how they relate to research productivity. Our findings suggest that overseas graduate training can be a key factor in graduate students’ development of international ties in these countries. Those with a higher proportion of international ties in their professional networks were likely to have published more papers and written more manuscripts. For faculty, international ties did not affect the number of manuscripts written or of papers published, but did correlate with an increase in publishing in top journals. The networks we examined were identified by asking study participants with whom they discuss their research. Because the relationships may not appear in explicit co-authorship networks, these networks were not officially recorded elsewhere. This study sheds light on the relationships of these invisible support networks to researcher productivity.
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Affiliation(s)
- Noriko Hara
- Department of Information and Library Science, School of Informatics, Computing & Engineering, Indiana University, Bloomington, Indiana, United States of America
- * E-mail:
| | - Hui Chen
- Department of Information and Library Science, School of Informatics, Computing & Engineering, Indiana University, Bloomington, Indiana, United States of America
- Department of Sociology, Indiana University, Bloomington, Indiana, United States of America
| | - Marcus Antonius Ynalvez
- Department of Social Sciences, Texas A&M International University, Laredo, Texas, United States of America
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22
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Affiliation(s)
- Noriko Hara
- Department of Information and Library Science; Indiana University; 011 Wells Library, 1320 E. 10th Street Bloomington IN 47405-3907
| | - Madelyn Rose Sanfilippo
- Information Law Institute, School of Law New York University; 40 Washington Sq. South New York NY 10012
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23
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Hara N, Nogami S, Nagasaka T, Hasegawa A, Tanigawa H, Muroga T. Mechanical Property Changes and Irradiation Hardening Due to Dissimilar Metal Welding with Reduced Activation Ferritic/Martensitic Steel and 316L Stainless Steel. Fusion Science and Technology 2017. [DOI: 10.13182/fst09-a8921] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- N. Hara
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - S. Nogami
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - T. Nagasaka
- National Institute for Fusion Science, Oroshi, Toki, Gifu 509-5292, Japan
| | - A. Hasegawa
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - H. Tanigawa
- Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T. Muroga
- National Institute for Fusion Science, Oroshi, Toki, Gifu 509-5292, Japan
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24
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Nogami S, Hara N, Nagasaka T, Hasegawa A, Muroga T. Effect of PWHT on the Mechanical and Metallographical Properties of a Dissimilar-Metal Weld Joint of F82H and SUS316L Steels. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12375] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Nogami
- Tohoku University, Sendai 980-8579, Japan
| | - N. Hara
- Tohoku University, Sendai 980-8579, Japan
| | - T. Nagasaka
- National Institute for Fusion Science, Oroshi, Toki, Gifu 509-5292, Japan
| | | | - T. Muroga
- National Institute for Fusion Science, Oroshi, Toki, Gifu 509-5292, Japan
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25
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Abstract
This study proposes a behavioral complexity theory for media selection in global virtual teams. This theory captures multiple contingencies into one holistic approach to media selection. Unlike existing linear and mechanistic theories of media selection, this heuristic theory moves away from the universal models that were previously proposed. The behavioral complexity theory assumes ambiguity and complexity of the media selection process in a nonlinear, organic, and holistic way. Behavioral complexity theory of media selection emphasizes the role of media repertoire, the ability of individuals to differentiate situations according to multiple contingencies, and their flexibility to effectively use multiple media in any particular situation. This theory is examined in the context of an exploratory case study of global virtual teams’ media selection in one of the leading Fortune 500 corporations.
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Affiliation(s)
- Pnina Shachaf
- School of Library and Information Science, 1320 E 10th St, LI025, Indiana University, Bloomington, IN 47405-3907, USA,
| | - Noriko Hara
- School of Library and Information Science, 1320 E 10th St, LI025, Indiana University, Bloomington, IN 47405-3907, USA
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Abstract
What part does the internet play in socio-political mobilization? The internet has influenced the ways in which we interact with each other and has been hailed as a great potential force to enrich civil society. In order to understand the extent of the internet's influence on social activists' activities, we examined newspaper and journal articles to identify indicators of that influence. Combining these indicators with elements drawn from theories of resource mobilization and participation, we focused our analysis on two distinct grassroots activities online and examined the roles of the internet for each. This analysis helps us conceptualize the mobilization of grassroots activities via the internet. The results may help inform social scientists as well as practitioners who are involved in grassroots activities, and provide a baseline for comparison with future research that examines mobilization of such activities with the use of the internet over time.
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Affiliation(s)
| | - Zilia Estrada
- School of Library and Information Science, Indiana, University, Bloomington, IN, USA
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Ito R, Fukui T, Hayashi T, Osamura A, Ohara M, Hara N, Higuchi A, Yamamoto T, Hirano T. Teneligliptin, a Dipeptidyl Peptidase-4 Inhibitor, Improves Early-Phase Insulin Secretion in Drug-Naïve Patients with Type 2 Diabetes. Drugs R D 2016. [PMID: 26224337 PMCID: PMC4561050 DOI: 10.1007/s40268-015-0096-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Introduction It remains unknown whether dipeptidyl peptidase-4 (DPP-4) inhibitors improve early-phase insulin secretion in Japanese patients with type 2 diabetes (T2D), a disease characterized by impaired insulin secretion. We investigated the changes in insulin secretion before and after treatment with the DPP-4 inhibitor teneligliptin in patients with T2D with a low insulinogenic index (IGI) determined by the oral glucose tolerance test (OGTT). Methods An open-label, prospective clinical study was conducted. Thirteen drug-naïve patients (mean age 55.5 ± 3.9 years) with T2D underwent OGTT before and after teneligliptin 20 mg/day monotherapy. Plasma levels of glucose (PG), insulin, and C-peptide were measured at 0, 30, 60, 90, and 120 min after glucose loading in the OGTT. Homeostasis model assessment (HOMA)-β, IGI, and the total or incremental area under the curve (AUC) for PG and insulin were measured. AUC120min for the secretory units of islets in transplantation (SUIT) index was also measured. Results HbA1c significantly decreased from 8.3 ± 0.4 % at baseline to 6.3 ± 0.2 % after 12 weeks of teneligliptin treatment (p < 0.05). Incremental AUC120min PG also significantly decreased, and β-cell function assessed by IGI30min, AUC120min insulin, and the AUC120min SUIT index significantly increased (0.16 ± 0.05 vs. 0.28 ± 0.06, 2692 ± 333 µU·2h/mL vs. 3537 ± 361 µU·2h/mL, and 4261 ± 442 vs. 8290 ± 1147, respectively; all p < 0.05). HOMA-β was unchanged. The reduction in incremental AUC120min PG was significantly associated with the augmentation of IGI30min and the AUC120min SUIT index. No severe adverse events were observed. Conclusions Twelve weeks of teneligliptin treatment improved IGI30min, AUC120min, and the SUIT index in drug-naïve Japanese patients with T2D.
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Affiliation(s)
- Rika Ito
- Division of Diabetes, Metabolism, and Endocrinology, Department of Medicine, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8666, Japan,
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Muro K, Uetake H, Fujita N, Furuta T, Hara N, Katori J, Yoshino T. 2113 Initial safety survey report from early post-marketing phase vigilance (EPPV) on TAS-102 for metastatic colorectal cancer (mCRC). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31035-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bilotta F, Lauretta MP, Tewari A, Haque M, Hara N, Uchino H, Rosa G. Insulin and the Brain: A Sweet Relationship With Intensive Care. J Intensive Care Med 2015; 32:48-58. [PMID: 26168800 DOI: 10.1177/0885066615594341] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/28/2015] [Accepted: 05/15/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Insulin receptors (IRs) in the brain have unique molecular features and a characteristic pattern of distribution. Their possible functions extend beyond glucose utilization. In this systematic review, we explore the interactions between insulin and the brain and its implications for anesthesiologists, critical care physicians, and other medical disciplines. METHODS A literature search of published preclinical and clinical studies between 1978 and 2014 was conducted, yielding 5996 articles. After applying inclusion and exclusion criteria, 92 studies were selected for this systematic review. RESULTS The IRs have unique molecular features, pattern of distribution, and mechanism of action. It has effects on neuronal function, metabolism, and neurotransmission. The IRs are involved in neuronal apoptosis and neurodegenerative processes. CONCLUSION In this systematic review, we present a close relationship between insulin and the brain, with discernible effects on memory, learning abilities, and motor functions. The potential therapeutic effects extend from acute brain insults such as traumatic brain injury, brain ischemia, and hemorrhage, to chronic neurodegenerative diseases such as Alzheimer and Parkinson disease. An understanding of the wider effects of insulin conveyed in this review will prompt anaesthesiologists and critical care physicians to consider its therapeutic potential and guide future studies.
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Affiliation(s)
- F Bilotta
- Department of Anesthesiology, Critical Care and Pain Medicine, "Sapienza" University of Rome, Rome, Italy
| | - M P Lauretta
- Anesthesia and Intensive Care Department, "La Sapienza" University of Rome, Rome, Italy .,Critical Care Department, University College London Hospital, London, United Kingdom
| | - A Tewari
- Department of Pediatric Neuroanesthesia and IONM, Cincinnati Children Hospital & Medical Center, Cincinnati, OH, USA
| | - M Haque
- Anesthesia and Critical Care Department, University College London Hospital, London, United Kingdom
| | - N Hara
- Department of Anesthesiology, Tokyo Medical University, Tokyo, Japan
| | - H Uchino
- Department of Anesthesiology, Tokyo Medical University, Tokyo, Japan
| | - G Rosa
- Department of Anesthesiology, Critical Care and Pain Medicine, "Sapienza" University of Rome, Rome, Italy
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Ishikawa K, Fukui T, Nagai T, Kuroda T, Hara N, Yamamoto T, Inagaki K, Hirano T. Type 1 diabetes patients have lower strength in femoral bone determined by quantitative computed tomography: A cross-sectional study. J Diabetes Investig 2015; 6:726-33. [PMID: 26543548 PMCID: PMC4627551 DOI: 10.1111/jdi.12372] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 03/30/2015] [Accepted: 03/31/2015] [Indexed: 01/16/2023] Open
Abstract
AIMS/INTRODUCTION Previous studies have reported osteoporosis measured by dual-energy X-ray absorptiometry in younger patients with type 1 diabetes. Limitations of 2-D imaging, however, limit the precision of dual-energy X-ray absorptiometry for the measurement of bone mineral density and bone strength. MATERIALS AND METHODS Three-dimensional quantitative computed tomography was used to calculate volumetric-bone mineral density (vBMD) and strength in femoral bone subfractions. A total of 17 male type 1 diabetes patients and 18 sex-matched healthy controls aged from 18 to 49 years were investigated in the present cross-sectional study. Patients with overt nephropathy were excluded. RESULTS Type 1 diabetes patients had significantly lower cortical vBMD in the femoral neck, and significantly lower total vBMD, cortical thickness and cortical cross-sectional area (cortical CSA) in the intertrochanter. Bone strength estimated by the buckling ratio (an index of cortical instability) of the intertrochanter was significantly higher in type 1 diabetes patients. The following serum bone markers were comparable between the two groups: bone-specific alkaline phosphatase, N-terminal propeptide of type 1 procollagen, osteocalcin, pentosidine and homocysteine. Serum insulin-like growth factor-1 values were significantly lower in the type 1 diabetes patients than in controls. Serum insulin-like growth factor-1values were positively correlated with serum bone formation markers, and the total vBMD of the femoral neck and lumbar spine in type 1 diabetes patients. CONCLUSIONS The present study is the first investigation by quantitative computed tomography measurement to show cortical instability and lower vBMD in the intertrochanter of young and middle-aged type 1 diabetes patients. Low insulin-like growth factor-1 might be a causative factor for osteoporosis in type 1 diabetes.
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Affiliation(s)
- Koji Ishikawa
- Department of orthopaedic Surgery, Showa University School of Medicine Tokyo, Japan
| | - Tomoyasu Fukui
- Department of Medicine, Division of Diabetes, Metabolism and Endocrinology, Showa University School of Medicine Tokyo, Japan
| | - Takashi Nagai
- Department of orthopaedic Surgery, Showa University School of Medicine Tokyo, Japan
| | - Takuma Kuroda
- Department of orthopaedic Surgery, Showa University School of Medicine Tokyo, Japan
| | - Noriko Hara
- Department of Medicine, Division of Diabetes, Metabolism and Endocrinology, Showa University School of Medicine Tokyo, Japan
| | - Takeshi Yamamoto
- Department of Medicine, Division of Diabetes, Metabolism and Endocrinology, Showa University School of Medicine Tokyo, Japan
| | - Katsunori Inagaki
- Department of orthopaedic Surgery, Showa University School of Medicine Tokyo, Japan
| | - Tsutomu Hirano
- Department of Medicine, Division of Diabetes, Metabolism and Endocrinology, Showa University School of Medicine Tokyo, Japan
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Taniguchi Y, Takahashi Y, Toba T, Yamada S, Yokoi K, Kobayashi S, Okajima S, Shimane A, Kawai H, Yasaka Y, Smanio P, Oliveira MA, Machado L, Cestari P, Medeiros E, Fukuzawa S, Okino S, Ikeda A, Maekawa J, Ichikawa S, Kuroiwa N, Yamanaka K, Igarashi A, Inagaki M, Patel K, Mahan M, Ananthasubramaniam K, Mouden M, Yokota S, Ottervanger J, Knollema S, Timmer J, Jager P, Padron K, Peix A, Cabrera L, Pena Bofill V, Valera D, Rodriguez Nande L, Carrillo Hernandez R, Mena Esnard E, Fernandez Columbie Y, Bertella E, Baggiano A, Mushtaq S, Segurini C, Loguercio M, Conte E, Beltrama V, Petulla' M, Andreini D, Pontone G, Guzic Salobir B, Dolenc Novak M, Jug B, Kacjan B, Novak Z, Vrtovec M, Mushtaq S, Pontone G, Bertella E, Conte E, Segurini C, Volpato V, Baggiano A, Formenti A, Pepi M, Andreini D, Ajanovic R, Husic-Selimovic A, Zujovic-Ajanovic A, Mlynarski R, Mlynarska A, Golba K, Sosnowski M, Ameta D, Goyal M, Kumar D, Chandra S, Sethi R, Puri A, Dwivedi SK, Narain VS, Saran RK, Nekolla S, Rischpler C, Nicolosi S, Langwieser N, Dirschinger R, Laugwitz K, Schwaiger M, Goral JL, Napoli J, Forcada P, Zucchiatti N, Damico A, Damico A, Olivieri D, Lavorato M, Dubesarsky E, Montana O, Salgado C, Jimenez-Heffernan A, Ramos-Font C, Lopez-Martin J, Sanchez De Mora E, Lopez-Aguilar R, Manovel A, Martinez A, Rivera F, Soriano E, Maroz-Vadalazhskaya N, Trisvetova E, Vrublevskaya O, Abazid R, Kattea M, Saqqah H, Sayed S, Smettei O, Winther S, Svensson M, Birn H, Jorgensen H, Botker H, Ivarsen P, Bottcher M, Maaniitty T, Stenstrom I, Saraste A, Pikkarainen E, Uusitalo V, Ukkonen H, Kajander S, Bax J, Knuuti J, Choi T, Park H, Lee C, Lee J, Seo Y, Cho Y, Hwang E, Cho D, Sanchez Enrique C, Ferrera C, Olmos C, Jimenez - Ballve A, Perez - Castejon MJ, Fernandez C, Vivas D, Vilacosta I, Nagamachi S, Onizuka H, Nishii R, Mizutani Y, Kitamura K, Lo Presti M, Polizzi V, Pino P, Luzi G, Bellavia D, Fiorilli R, Madeo A, Malouf J, Buffa V, Musumeci F, Rosales S, Puente A, Zafrir N, Shochat T, Mats A, Solodky A, Kornowski R, Lorber A, Boemio A, Pellegrino T, Paolillo S, Piscopo V, Carotenuto R, Russo B, Pellegrino S, De Matteis G, Perrone-Filardi P, Cuocolo A, Piscopo V, Pellegrino T, Boemio A, Carotenuto R, Russo B, Pellegrino S, De Matteis G, Petretta M, Cuocolo A, Amirov N, Ibatullin M, Sadykov A A, Saifullina G, Ruano R, Diego Dominguez M, Rodriguez Gabella T, Diego Nieto A, Diaz Gonzalez L, Garcia-Talavera J, Sanchez Fernandez P, Leen A, Al Younis I, Zandbergen-Harlaar S, Verberne H, Gimelli A, Veltman C, Wolterbeek R, Bax J, Scholte A, Mooney D, Rosenblatt J, Dunn T, Vasaiwala S, Okuda K, Nakajima K, Nystrom K, Edenbrandt L, Matsuo S, Wakabayashi H, Hashimoto M, Kinuya S, Iric-Cupic V, Milanov S, Davidovic G, Zdravkovic V, Ashikaga K, Yoneyama K, Akashi Y, Shugushev Z, Maximkin D, Chepurnoy A, Volkova O, Baranovich V, Faibushevich A, El Tahlawi M, Elmurr A, Alzubaidi S, Sakrana A, Gouda M, El Tahlawi R, Sellem A, Melki S, Elajmi W, Hammami H, Okano M, Kato T, Kimura M, Funasako M, Nakane E, Miyamoto S, Izumi T, Haruna T, Inoko M, Massardo T, Swett E, Fernandez R, Vera V, Zhindon J, Fernandez R, Swett E, Vera V, Zhindon J, Alay R, Massardo T, Ohshima S, Nishio M, Kojima A, Tamai S, Kobayashi T, Murohara T, Burrell S, Van Rosendael A, Van Den Hoogen I, De Graaf M, Roelofs J, Kroft L, Bax J, Scholte A, Rjabceva I, Krumina G, Kalvelis A, Chanakhchyan F, Vakhromeeva M, Kankiya E, Koppes J, Knol R, Wondergem M, Van Der Ploeg T, Van Der Zant F, Lazarenko SV, Bruin VS, Pan XB, Declerck JM, Van Der Zant FM, Knol RJJ, Juarez-Orozco LE, Alexanderson E, Slart R, Tio R, Dierckx R, Zeebregts C, Boersma H, Hillege H, Martinez-Aguilar M, Jordan-Rios A, Christensen TE, Ahtarovski KA, Bang LE, Holmvang L, Soeholm H, Ghotbi AA, Andersson H, Ihlemann N, Kjaer A, Hasbak P, Gulya M, Lishmanov YB, Zavadovskii K, Lebedev D, Stahle M, Hellberg S, Liljenback H, Virta J, Metsala O, Yla-Herttuala S, Saukko P, Knuuti J, Saraste A, Roivainen A, Thackeray J, Wang Y, Bankstahl J, Wollert K, Bengel F, Saushkina Y, Evtushenko V, Minin S, Efimova I, Evtushenko A, Smishlyaev K, Lishmanov Y, Maslov L, Okuda K, Nakajima K, Kirihara Y, Sugino S, Matsuo S, Taki J, Hashimoto M, Kinuya S, Ahmadian A, Berman J, Govender P, Ruberg F, Miller E, Piriou N, Pallardy A, Valette F, Cahouch Z, Mathieu C, Warin-Fresse K, Gueffet J, Serfaty J, Trochu J, Kraeber-Bodere F, Van Dijk J, Mouden M, Ottervanger J, Van Dalen J, Jager P, Zafrir N, Ofrk H, Vaturi M, Shochat T, Hassid Y, Belzer D, Sagie A, Kornowski R, Kaminek M, Metelkova I, Budikova M, Koranda P, Henzlova L, Sovova E, Kincl V, Drozdova A, Jordan M, Shahid F, Teoh Y, Thamen R, Hara N, Onoguchi M, Hojyo O, Kawaguchi Y, Murai M, Udaka F, Matsuzawa Y, Bulugahapitiya DS, Avison M, Martin J, Liu YH, Wu J, Liu C, Sinusas A, Daou D, Sabbah R, Bouladhour H, Coaguila C, Aguade-Bruix S, Pizzi M, Romero-Farina G, Candell-Riera J, Castell-Conesa J, Patchett N, Sverdlov A, Miller E, Daou D, Sabbah R, Bouladhour H, Coaguila C, Smettei O, Abazid R, Boulaamayl El Fatemi S, Sallam L, Snipelisky D, Park J, Ray J, Shapiro B, Kostkiewicz M, Szot W, Holcman K, Lesniak-Sobelga A, Podolec P, Clerc O, Possner M, Liga R, Vontobel J, Mikulicic F, Graeni C, Benz D, Herzog B, Gaemperli O, Kaufmann P. Poster Session 1: Sunday 3 May 2015, 08:30-18:00 * Room: Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev051] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Yara M, Iwao B, Hara N, Yamanaka T, Uchino H, Inazu M. Molecular and functional characterization of choline transporter in the human trophoblastic cell line JEG-3 cells. Placenta 2015; 36:631-7. [PMID: 25896522 DOI: 10.1016/j.placenta.2015.03.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 03/23/2015] [Accepted: 03/31/2015] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Choline is essential for the synthesis of the major membrane phospholipid phosphatidylcholine (PC), the methyl donor betaine and the neurotransmitter acetylcholine (ACh), which is involved in several vital biological functions that play key roles in fetal development. In this study, we examined the molecular and functional characteristics of choline uptake in the human trophoblastic cell line JEG-3. METHODS We examined [(3)H]choline uptake in the human trophoblastic cell line JEG-3. The expression of CTL1 and CTL2 was evaluated by quantitative real-time PCR, western blotting and immunocytochemistry. RESULTS We demonstrated that JEG-3 cells take up [(3)H] choline by a saturable process that is mediated by a Na(+)-independent and pH-dependent transport system. The cells have two different [(3)H] choline transport systems, high- and low-affinity, with Km values of 28.4 ± 5.0 μM and 210.6 ± 55.1 μM, respectively. Cationic compounds and hemicholinium-3 (HC-3) inhibited choline uptake. Choline transporter-like protein 1 (CTL1) and CTL2 mRNA and protein were highly expressed in JEG-3 cells and were localized to the plasma membrane. DISCUSSION The present results suggest that choline is mainly transported via a high-affinity choline transport system (CTL1) and a low-affinity choline transport system (CTL2) in human trophoblastic JEG-3 cells. These transporters play an important role in the growth of the fetus.
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Affiliation(s)
- M Yara
- Department of Anesthesiology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - B Iwao
- Department of Psychiatry, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - N Hara
- Department of Anesthesiology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - T Yamanaka
- Department of Preventive Medicine, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - H Uchino
- Department of Anesthesiology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - M Inazu
- Department of Preventive Medicine, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan; Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan.
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Nakajima H, Sasaki Y, Maeda T, Takeda M, Hara N, Nakanishi K, Urita Y, Hattori R, Miura K, Taniguchi T. Antepartum ornithine transcarbamylase deficiency. Case Rep Gastroenterol 2014; 8:337-45. [PMID: 25759629 PMCID: PMC4337171 DOI: 10.1159/000369131] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Ornithine transcarbamylase deficiency (OTCD) is the most common type urea cycle enzyme deficiencies. This syndrome results from a deficiency of the mitochondrial enzyme ornithine transcarbamylase, which catalyzes the conversion of ornithine and carbamoyl phosphate to citrullin. Our case was a 28-year-old female diagnosed with OTCD following neurocognitive deficit during her first pregnancy. Although hyperammonemia was suspected as the cause of the patient's mental changes, there was no evidence of chronic liver disease. Plasma amino acid and urine organic acid analysis revealed OTCD. After combined modality treatment with arginine, sodium benzoate and hemodialysis, the patient's plasma ammonia level stabilized and her mental status returned to normal. At last she recovered without any damage left.
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Affiliation(s)
- Hitoshi Nakajima
- Department of General Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Yosuke Sasaki
- Department of General Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Tadashi Maeda
- Department of General Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Masako Takeda
- Department of General Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Noriko Hara
- Department of General Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Kazushige Nakanishi
- Department of General Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Yoshihisa Urita
- Department of General Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Risa Hattori
- Department of Gastroenterology, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Ken Miura
- Department of Neurology, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Tomoko Taniguchi
- Department of Gynecology, Faculty of Medicine, Toho University, Tokyo, Japan
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Ynalvez R, Garza-Gongora C, Ynalvez MA, Hara N. Research experiences and mentoring practices in selected east Asian graduate programs: predictors of research productivity among doctoral students in molecular biology. Biochem Mol Biol Educ 2014; 42:305-22. [PMID: 24692178 DOI: 10.1002/bmb.20794] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 03/03/2014] [Indexed: 05/20/2023]
Abstract
Although doctoral mentors recognize the benefits of providing quality advisement and close guidance, those of sharing project management responsibilities with mentees are still not well recognized. We observed that mentees, who have the opportunity to co-manage projects, generate more written output. Here we examine the link between research productivity, doctoral mentoring practices (DMP), and doctoral research experiences (DRE) of mentees in programs in the non-West. Inspired by previous findings that early career productivity is a strong predictor of later productivity, we examine the research productivity of 210 molecular biology doctoral students in selected programs in Japan, Singapore, and Taiwan. Using principal component (PC) analysis, we derive two sets of PCs: one set from 15 DMP and another set from 16 DRE items. We model research productivity using Poisson and negative-binomial regression models with these sets as predictors. Our findings suggest a need to re-think extant practices and to allocate resources toward professional career development in training future scientists. We contend that doctoral science training must not only be an occasion for future scientists to learn scientific and technical skills, but it must also be the opportunity to experience, to acquire, and to hone research management skills.
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Affiliation(s)
- Ruby Ynalvez
- From the Texas A&M International University, Department of Biology and Chemistry, Laredo, Texas
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Miyashita A, Hatsuta H, Kikuchi M, Nakaya A, Saito Y, Tsukie T, Hara N, Ogishima S, Kitamura N, Akazawa K, Kakita A, Takahashi H, Murayama S, Ihara Y, Ikeuchi T, Kuwano R. Genes associated with the progression of neurofibrillary tangles in Alzheimer's disease. Transl Psychiatry 2014; 4:e396. [PMID: 26126179 PMCID: PMC4080317 DOI: 10.1038/tp.2014.35] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 03/27/2014] [Accepted: 04/22/2014] [Indexed: 12/21/2022] Open
Abstract
The spreading of neurofibrillary tangles (NFTs), intraneuronal aggregates of highly phosphorylated microtubule-associated protein tau, across the human brain is correlated with the cognitive severity of Alzheimer's disease (AD). To identify genes relevant to NFT expansion defined by the Braak stage, we conducted whole-genome exon array analysis with an exploratory sample set consisting of 213 human post-mortem brain tissue specimens from the entorinal, temporal and frontal cortices of 71 brain-donor subjects: Braak NFT stages 0 (N=13), I-II (N=20), III-IV (N=19) and V-VI (N=19). We identified eight genes, RELN, PTGS2, MYO5C, TRIL, DCHS2, GRB14, NPAS4 and PHYHD1, associated with the Braak stage. The expression levels of three genes, PHYHD1, MYO5C and GRB14, exhibited reproducible association on real-time quantitative PCR analysis. In another sample set, including control subjects (N=30), and in patients with late-onset AD (N=37), dementia with Lewy bodies (N=17) and Parkinson disease (N=36), the expression levels of two genes, PHYHD1 and MYO5C, were obviously associated with late-onset AD. Protein-protein interaction network analysis with a public database revealed that PHYHD1 interacts with MYO5C via POT1, and PHYHD1 directly interacts with amyloid beta-peptide 42. It is thus likely that functional failure of PHYHD1 and MYO5C could lead to AD development.
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Affiliation(s)
- A Miyashita
- Department of Molecular Genetics, Bioresource Science Branch, Center for Bioresources, Brain Research Institute, Niigata University, Niigata, Japan,Department of Molecular Genetics, Brain Research Institute, Niigata University, 1-757 Asahimachi, Niigata 951-8585, Japan. E-mails: or
| | - H Hatsuta
- Department of Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - M Kikuchi
- Research Association for Biotechnology, Tokyo, Japan
| | - A Nakaya
- Center for Transdisciplinary Research, Niigata University, Niigata, Japan
| | - Y Saito
- Department of Pathology, National Center Hospital of Neurology and Psychiatry, Tokyo, Japan
| | - T Tsukie
- Research Association for Biotechnology, Tokyo, Japan
| | - N Hara
- Department of Molecular Genetics, Bioresource Science Branch, Center for Bioresources, Brain Research Institute, Niigata University, Niigata, Japan
| | - S Ogishima
- Department of Health Record Informatics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
| | - N Kitamura
- Department of Medical Informatics, Niigata University, Niigata, Japan
| | - K Akazawa
- Department of Medical Informatics, Niigata University, Niigata, Japan
| | - A Kakita
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - H Takahashi
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - S Murayama
- Department of Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Y Ihara
- Department of Neuropathology, Faculty of Life and Medical Sciences, Doshisha University, Kyoto, Japan
| | - T Ikeuchi
- Department of Molecular Genetics, Bioresource Science Branch, Center for Bioresources, Brain Research Institute, Niigata University, Niigata, Japan
| | - R Kuwano
- Department of Molecular Genetics, Bioresource Science Branch, Center for Bioresources, Brain Research Institute, Niigata University, Niigata, Japan,Department of Molecular Genetics, Brain Research Institute, Niigata University, 1-757 Asahimachi, Niigata 951-8585, Japan. E-mails: or
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Kuroki H, Nakahara T, Hara N, Ide Y, Kashimura Y, Kashimura M. Human papilloma virus testing in the field of cervical cancer screening in Japan. Eur J Public Health 2013. [DOI: 10.1093/eurpub/ckt124.008] [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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Chishaki H, Nakamura C, Inoue M, Hara N, Ide Y, Chishaki A. eGFR should be understood with cautions in diabetic patients - an observational study of annual health check-up results of middle aged Japanese. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4293] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Zhang J, Ichiba M, Kiyohara C, Nakanishi Y, Takayama K, Hara N, Tomokuni K. The relationship between aryl hydrocarbon hydroxylase activity and DNA adducts measured by (32)P-postlabelling assay in lymphocytes of lung cancer patients. Biomarkers 2013; 5:152-7. [PMID: 23885952 DOI: 10.1080/135475000230460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
We have investigated the correlation between DNA adduct levels and aryl hydrocarbon hydroxylase (AHH) activity in peripheral lymphocyte samples obtained from 42 lung cancer patients. DNA adducts and AHH activity were determined by the (32)P-postlabelling technique and the fluorometric method, respectively. The mean +/- SD of DNA adduct level was 0.88 +/- 0.37 (ranged from 0.22 to 1.90) per 10(8) nucleotides. The geometric means of non-induced and 3-methylcholanthrene (MC)-induced AHH activity, as well as AHH inducibility (MC-induced AHH activity/non-induced AHH activity) were 0.029, 0.228 pmol min(-1) 10(-6) cells, and 7.776, respectively. There was no statistically significant correlation between DNA adduct levels and non-induced or MC-induced AHH activity. A tendency of positive correlation was found between DNA adduct levels and AHH inducibility for the all subjects (n = 42, r = 0.25, p = 0.11). Such a positive correlation reached statistical significance in the subjects with squamous cell carcinoma (n = 13, r = 0.70, p < 0.01). In addition, similar correlation of DNA adducts with AHH inducibility was also observed in the GSTM1 present genotype (n = 17, r = 0.44, p = 0.07) and GSTP1-AA genotype (n = 29, r = 0.37, p = 0.05) individuals. These findings suggest that DNA adduct levels are mediated by CYP1A1 enzyme, and AHH inducibility may be a more relevant indicator than specific AHH activity for explaining the variation of DNA adduct levels in lymphocytes.
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Fukui T, Oono K, Hara N, Yamamoto T, Nagashima M, Naito H, Hirano T. Increment of C-peptide after glucagon injection determines the progressive nature of Japanese type 2 diabetes: a long-term follow-up study. Endocr J 2013; 60:715-24. [PMID: 23386398 DOI: 10.1507/endocrj.ej12-0357] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Type 2 diabetes (T2D) is characterized by a steady worsening of β-cell dysfunction as the disease progresses. The objective of this study was to estimate the decline of insulin secretion in Japanese type 2 diabetic patients (T2D-patients) by glucagon injection over an observation period of more than 10 years. Thirty-three T2D-patients were followed for 10.4 ± 1.4 years. Fasting C-peptide immunoreactivity (FCPR), the 6 min value of CPR after glucagon injection (6MCPR), and the increment of CPR (ΔCPR) were measured at baseline and follow-up. FCPR, 6MCPR, ΔCPR were significantly lower at follow-up than at baseline (p<0.05, p<0.005, and p<0.0005, respectively). The annual change of ΔCPR was significantly (p<0.05) greater than the annual change of FCPR (-0.062 ± 0.076 ng/mL/year and -0.025 ± 0.067 ng/mL/year, respectively). In contrast, CPR-index (an index of β-cell function) and SUIT-index (secretory units of islets in transplantation) calculated based on fasting blood samples were unaltered. The annual changes of FCPR, 6MCPR, and ΔCPR were negatively correlated with the FCPR, 6MCPR, and ΔCPR values at baseline, respectively. Duration of diabetes, BMI, diabetic retinopathy, and secondary sulfonylurea failure at baseline were not correlated with the annual changes of FCPR, 6MCPR, and ΔCPR. In conclusion, our longitudinal observations suggest that β-cell function progressively declines in Japanese T2D-patients. The annual declines of ΔCPR were more prominent than the annual declines of FCPR. ΔCPR after glucagon injection may be more useful for estimating individual longitudinal insulin secretion than fasting blood samples.
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Affiliation(s)
- Tomoyasu Fukui
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University School of Medicine, Tokyo 142-8666, Japan.
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Yamamoto H, Sugimoto S, Furuya T, Hara N, Fukata K, Kojima H, Ishisugi S, Takishita K, Miura K, Sasai K. A New Method of Total Body Irradiation Using a Field-in-Field Technique. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Shibata T, Hayashi M, Naganuma A, Hara N, Hara K, Hasebe F, Shimizu K, Komala N, Inai Y, Vömel H, Hamdi S, Iwasaki S, Fujiwara M, Shiotani M, Ogino SY, Nishi N. Cirrus cloud appearance in a volcanic aerosol layer around the tropical cold point tropopause over Biak, Indonesia, in January 2011. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd017029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ishizaki F, Hoque MA, Nishiyama T, Kawasaki T, Kasahara T, Hara N, Takizawa I, Saito T, Kitamura Y, Akazawa K, Takahashi K. External Validation of the UCSF-CAPRA (University of California, San Francisco, Cancer of the Prostate Risk Assessment) in Japanese Patients Receiving Radical Prostatectomy. Jpn J Clin Oncol 2011; 41:1259-64. [DOI: 10.1093/jjco/hyr136] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hara N, Takizawa I, Isahaya E, Nishiyama T, Takahashi K. UP-02.185 Associations Among Anabolic Endocrine Axes in Patients with Prostate Cancer Receiving Androgen Deprivation Therapy. Urology 2011. [DOI: 10.1016/j.urology.2011.07.1003] [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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Obara K, Mizusawa T, Tsutsui T, Yamana K, Tadokoro A, Arai K, Hara N, Takahashi K. MP-11.10 Free Tube Graft Urethroplasty for Repair of Hypospadias with Chordee. Urology 2011. [DOI: 10.1016/j.urology.2011.07.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Garza‐Gongora C, Ynalvez R, Ynalvez MA, Kilburn J, Hara N. Graduate science mentoring practices, and aspects of mentor‐mentee interaction: learning from Japan, Singapore, and Taiwan. FASEB J 2011. [DOI: 10.1096/fasebj.25.1_supplement.576.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - John Kilburn
- Behavioral SciencesTexas A&M InternationalLaredoTX
| | - Noriko Hara
- School of Library & Information ScienceIndiana UniversityBloomingtonIN
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Obara K, Mizusawa T, Isahaya E, Suzuki K, Hara N, Takahashi K. UP-1.58: Efficacy of clean intermittent catheterization (CIC) for urinary incontinence in children with neurogenic bladder dysfunction secondary to myelodysplasia. Urology 2010. [DOI: 10.1016/j.urology.2010.07.191] [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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Hara N, Onoguchi M, Takenaka K, Matsubara K, Ujita H, Kenko Y. Assessment of Patient Exposure to X-Radiation from SPECT/CT Scanners. J Nucl Med Technol 2010; 38:138-48. [DOI: 10.2967/jnmt.110.075770] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Iwamoto M, Baba-Kasai A, Kiyota S, Hara N, Takano M. ACO1, a gene for aminocyclopropane-1-carboxylate oxidase: effects on internode elongation at the heading stage in rice. Plant Cell Environ 2010; 33:805-15. [PMID: 20040065 DOI: 10.1111/j.1365-3040.2009.02106.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Although reports on a gene for 1-amino-cyclopropane-1-carboxylate (ACC) oxidase (ACO1) in rice (Oryza sativa L.) suggest that high levels of its transcript are associated with internode elongation of deep-water rice during submergence, the role of ACO1 in rice development is largely unknown. The tissue-specificity of ACO1 expression indicated that its transcript significantly accumulated in lower parts of elongating internodes at the heading stage. Histochemical analysis and in situ hybridization showed that the ACO1 expression was localized in the basal parts of leaf sheaths immediately above nodes or the lower parts of elongating internodes. To further examine the role of ACO1, ACO1-deficient (aco1) and overexpressing (ACO1-OX) mutants were characterized. The total length of the elongated internodes of aco1 mutants was slightly shorter than that of wild-type plants and that of ACO1-OX mutants was longer. Interestingly, expression of the ACC synthase gene ACS1 and ethylene signalling gene OsEIN2 was up-regulated in the aco1 mutants. This study suggests that the ACO1 has a little effect on internode elongation at the heading stage, and that up-regulation of the ACS1 and OsEIN2 expression may attenuate inhibition of internode elongation.
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Affiliation(s)
- M Iwamoto
- Photobiology and Photosynthesis Research Unit, Division of Plant Sciences, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan.
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