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Seriramulu VP, Suppiah S, Lee HH, Jang JH, Omar NF, Mohan SN, Ibrahim NSN, Azmi NHM, Buhari I, Ahmad U. Review of MR spectroscopy analysis and artificial intelligence applications for the detection of cerebral inflammation and neurotoxicity in Alzheimer's disease. Med J Malaysia 2024; 79:102-110. [PMID: 38287765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
INTRODUCTION Magnetic resonance spectroscopy (MRS) has an emerging role as a neuroimaging tool for the detection of biomarkers of Alzheimer's disease (AD). To date, MRS has been established as one of the diagnostic tools for various diseases such as breast cancer and fatty liver, as well as brain tumours. However, its utility in neurodegenerative diseases is still in the experimental stages. The potential role of the modality has not been fully explored, as there is diverse information regarding the aberrations in the brain metabolites caused by normal ageing versus neurodegenerative disorders. MATERIALS AND METHODS A literature search was carried out to gather eligible studies from the following widely sourced electronic databases such as Scopus, PubMed and Google Scholar using the combination of the following keywords: AD, MRS, brain metabolites, deep learning (DL), machine learning (ML) and artificial intelligence (AI); having the aim of taking the readers through the advancements in the usage of MRS analysis and related AI applications for the detection of AD. RESULTS We elaborate on the MRS data acquisition, processing, analysis, and interpretation techniques. Recommendation is made for MRS parameters that can obtain the best quality spectrum for fingerprinting the brain metabolomics composition in AD. Furthermore, we summarise ML and DL techniques that have been utilised to estimate the uncertainty in the machine-predicted metabolite content, as well as streamline the process of displaying results of metabolites derangement that occurs as part of ageing. CONCLUSION MRS has a role as a non-invasive tool for the detection of brain metabolite biomarkers that indicate brain metabolic health, which can be integral in the management of AD.
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Affiliation(s)
- V P Seriramulu
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Radiology, 43400 Serdang, Selangor, Malaysia
| | - S Suppiah
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Radiology, 43400 Serdang, Selangor, Malaysia.
| | - H H Lee
- METLiT Inc., Seoul, Republic of Korea
| | - J H Jang
- METLiT Inc., Seoul, Republic of Korea
| | - N F Omar
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Radiology, 43400 Serdang, Selangor, Malaysia
| | - S N Mohan
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Psychiatry, 43400 Serdang, Selangor, Malaysia
| | - N S N Ibrahim
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Radiology, 43400 Serdang, Selangor, Malaysia
| | - N H M Azmi
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Radiology, 43400 Serdang, Selangor, Malaysia
| | - I Buhari
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Radiology, 43400 Serdang, Selangor, Malaysia
| | - U Ahmad
- Bauchi State University, Faculty of Basic Medical Sciences, Department of Anatomy, Molecular Genetics Informatics, Gadau, Nigeria
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Smarra C, Goncharov B, Barausse E, Antoniadis J, Babak S, Nielsen ASB, Bassa CG, Berthereau A, Bonetti M, Bortolas E, Brook PR, Burgay M, Caballero RN, Chalumeau A, Champion DJ, Chanlaridis S, Chen S, Cognard I, Desvignes G, Falxa M, Ferdman RD, Franchini A, Gair JR, Graikou E, Grießmeier JM, Guillemot L, Guo YJ, Hu H, Iraci F, Izquierdo-Villalba D, Jang J, Jawor J, Janssen GH, Jessner A, Karuppusamy R, Keane EF, Keith MJ, Kramer M, Krishnakumar MA, Lackeos K, Lee KJ, Liu K, Liu Y, Lyne AG, McKee JW, Main RA, Mickaliger MB, Niţu IC, Parthasarathy A, Perera BBP, Perrodin D, Petiteau A, Porayko NK, Possenti A, Leclere HQ, Samajdar A, Sanidas SA, Sesana A, Shaifullah G, Speri L, Spiewak R, Stappers BW, Susarla SC, Theureau G, Tiburzi C, van der Wateren E, Vecchio A, Krishnan VV, Wang J, Wang L, Wu Z. Second Data Release from the European Pulsar Timing Array: Challenging the Ultralight Dark Matter Paradigm. Phys Rev Lett 2023; 131:171001. [PMID: 37955508 DOI: 10.1103/physrevlett.131.171001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/15/2023] [Accepted: 09/25/2023] [Indexed: 11/14/2023]
Abstract
Pulsar Timing Array experiments probe the presence of possible scalar or pseudoscalar ultralight dark matter particles through decade-long timing of an ensemble of galactic millisecond radio pulsars. With the second data release of the European Pulsar Timing Array, we focus on the most robust scenario, in which dark matter interacts only gravitationally with ordinary baryonic matter. Our results show that ultralight particles with masses 10^{-24.0} eV≲m≲10^{-23.3} eV cannot constitute 100% of the measured local dark matter density, but can have at most local density ρ≲0.3 GeV/cm^{3}.
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Affiliation(s)
- Clemente Smarra
- SISSA-International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy and INFN, Sezione di Trieste
- IFPU-Institute for Fundamental Physics of the Universe, Via Beirut 2, 34014 Trieste, Italy
| | - Boris Goncharov
- Gran Sasso Science Institute (GSSI), I-67100 L'Aquila, Italy
- INFN, Laboratori Nazionali del Gran Sasso, I-67100 Assergi, Italy
| | - Enrico Barausse
- SISSA-International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy and INFN, Sezione di Trieste
- IFPU-Institute for Fundamental Physics of the Universe, Via Beirut 2, 34014 Trieste, Italy
| | - J Antoniadis
- Institute of Astrophysics, FORTH, Nikolaou Plastira 100, 70013, Heraklion, Greece
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - S Babak
- Université Paris Cité CNRS, Astroparticule et Cosmologie, 75013 Paris, France
| | - A-S Bak Nielsen
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
| | - C G Bassa
- ASTRON, Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, 7991 PD, Dwingeloo, The Netherlands
| | - A Berthereau
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - M Bonetti
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INAF - Osservatorio Astronomico di Brera, via Brera 20, I-20121 Milano, Italy
| | - E Bortolas
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INAF - Osservatorio Astronomico di Brera, via Brera 20, I-20121 Milano, Italy
| | - P R Brook
- Institute for Gravitational Wave Astronomy and School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - M Burgay
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | - R N Caballero
- Hellenic Open University, School of Science and Technology, 26335 Patras, Greece
| | - A Chalumeau
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
| | - D J Champion
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - S Chanlaridis
- Institute of Astrophysics, FORTH, Nikolaou Plastira 100, 70013, Heraklion, Greece
| | - S Chen
- Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People's Republic of China
| | - I Cognard
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - G Desvignes
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - M Falxa
- Université Paris Cité CNRS, Astroparticule et Cosmologie, 75013 Paris, France
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
| | - R D Ferdman
- School of Physics, Faculty of Science, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - A Franchini
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
| | - J R Gair
- Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Muühlenberg 1, 14476 Potsdam, Germany
| | - E Graikou
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - J-M Grießmeier
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - L Guillemot
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - Y J Guo
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - H Hu
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - F Iraci
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
- Universitá di Cagliari, Dipartimento di Fisica, S.P. Monserrato-Sestu Km 0,700-09042 Monserrato (CA), Italy
| | - D Izquierdo-Villalba
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
| | - J Jang
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - J Jawor
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - G H Janssen
- ASTRON, Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, 7991 PD, Dwingeloo, The Netherlands
- Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - A Jessner
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - R Karuppusamy
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - E F Keane
- School of Physics, Trinity College Dublin, College Green, Dublin 2, D02 PN40, Ireland
| | - M J Keith
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - M Kramer
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - M A Krishnakumar
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
| | - K Lackeos
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - K J Lee
- Institute of Astrophysics, FORTH, Nikolaou Plastira 100, 70013, Heraklion, Greece
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
| | - K Liu
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - Y Liu
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
| | - A G Lyne
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - J W McKee
- E.A. Milne Centre for Astrophysics, University of Hull, Cottingham Road, Kingston-upon-Hull, HU6 7RX, United Kingdom
- Centre of Excellence for Data Science, Artificial Intelligence and Modelling (DAIM), University of Hull, Cottingham Road, Kingston-upon-Hull, HU6 7RX, United Kingdom
| | - R A Main
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - M B Mickaliger
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - I C Niţu
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - A Parthasarathy
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - B B P Perera
- Arecibo Observatory, HC3 Box 53995, Arecibo, Puerto Rico 00612
| | - D Perrodin
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | - A Petiteau
- Université Paris Cité CNRS, Astroparticule et Cosmologie, 75013 Paris, France
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - N K Porayko
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
| | - A Possenti
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | | | - A Samajdar
- Institut für Physik und Astronomie, Universität Potsdam, Haus 28, Karl-Liebknecht-Str. 24/25, 14476, Potsdam, Germany
| | - S A Sanidas
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - A Sesana
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INAF - Osservatorio Astronomico di Brera, via Brera 20, I-20121 Milano, Italy
| | - G Shaifullah
- Dipartimento di Fisica "G. Occhialini", Universitá degli Studi di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INFN, Sezione di Milano-Bicocca, Piazza della Scienza 3, I-20126 Milano, Italy
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | - L Speri
- Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Muühlenberg 1, 14476 Potsdam, Germany
| | - R Spiewak
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - B W Stappers
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - S C Susarla
- Ollscoil na Gaillimhe-University of Galway, University Road, Galway H91 TK33, Ireland
| | - G Theureau
- Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Université d'Orléans/CNRS, 45071 Orléans Cedex 02, France
- Observatoire Radioastronomique de Nançay, Observatoire de Paris, Université PSL, Université d'Orléans, CNRS, 18330 Nançay, France
- Laboratoire Univers et Théories LUTh, Observatoire de Paris, Université PSL, CNRS, Université de Paris, 92190 Meudon, France
| | - C Tiburzi
- INAF - Osservatorio Astronomico di Cagliari, via della Scienza 5, 09047 Selargius (CA), Italy
| | - E van der Wateren
- ASTRON, Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, 7991 PD, Dwingeloo, The Netherlands
- Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - A Vecchio
- Institute for Gravitational Wave Astronomy and School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | | | - J Wang
- Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
- Ruhr University Bochum, Faculty of Physics and Astronomy, Astronomical Institute (AIRUB), 44780 Bochum, Germany
- Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087, China
| | - L Wang
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Z Wu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
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Lam L, Czer L, Runyan C, Otarola I, Jang J, Lau J, Gau M, Hernandez K, Ngo T, Cole R, Moriguchi J. Outcome of Enoxaparin Bridging in Left Ventricular Assist Devices (LVAD) in an Ambulatory Setting: A Continuation Study at Cedars Sinai Medical Center (CSMC). J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Goswami R, Jang J, Ruiz J, Desai S, Paghdar S, Malkani S, Yip D, Leoni J, Patel P, Lyle M, Nativi J. Artificial Intelligence to Predict Death or Transplant in ATTR Amyloidosis Cardiomyopathy. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Jang J, Ruiz J, Desai S, Sareyyupoglu B, Paghdar S, Malkani S, Landolfo K, Patel P, Nativi J, Yip D, Lyle M, Leoni J, Pham S, Goswami R. Mid-Term Survival in Patients with Advanced Heart Failure Receiving an Impella Device Intended as Bridge to Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Jang J, Kook Y, Baek S, Kim J, Kim M, Lee S, Moon S, Kim J, Bae S, Ahn S, Jeong J. P217 Upstaging and lymph node metastasis rate in patients with ductal carcinoma in situ who received mastectomy regarding the necessary of sentinel lymph node biopsy. Breast 2023. [DOI: 10.1016/s0960-9776(23)00335-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
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Dhamane AD, Noxon V, Bruette R, Shah S, Ferri M, Liu X, Jang J, Luo X. Anticoagulant treatment patterns and thromboembolic events by tumor type among patients with VTE and cancer. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Patients with venous thromboembolism (VTE) and cancer are at higher risk of adverse outcomes (mortality, recurrent VTE etc.) versus patients with cancer alone; as such, clinical guidelines recommend anticoagulant treatment for patients with VTE and cancer. There is limited real world data about how anticoagulant treatment and thromboembolic outcomes differ by tumor type in patients with VTE and cancer. Understanding such differences may help identify appropriate anticoagulant treatment for specific tumor types.
Purpose
To describe anticoagulant treatment patterns and thromboembolic outcomes by tumor type among patients with VTE and cancer.
Methods
Patients with VTE and cancer age ≥65 were identified from the Surveillance, Epidemiology and End Results (SEER) Medicare database from 1/1/2014–12/31/2019. Patients were required to be enrolled for ≥6-months prior to their first VTE diagnosis (index) and without evidence of other conditions requiring anticoagulant (i.e., atrial fibrillation) prior to index. Cancer status and tumor type were identified from SEER or Medicare database in the 6-months prior through 30-days post VTE. This analysis focused on the following specific tumor types: high risk (brain, pancreas, and stomach) and common tumor types (breast, and prostate). Patients treated with an anticoagulant within 30-days after index were included in the final population. Major bleeding (MB) and recurrent VTE events were measured during follow-up (index date through earliest of disenrollment, death or 12/31/2019).
Results
A total of 3,546 anticoagulated patients with VTE and cancer of interest met all study criteria (breast [n=1,197], prostate [n=849], pancreatic [n=995], brain [n=248] and stomach [n=257] cancer). Patient mean age ranged from 73 (brain) to 76 (stomach) at index. Anticoagulant treatment patterns varied by tumor type (Figure 1). LMWH was more likely to be used in the 3 high risk tumor types whereas apixaban and rivaroxaban were more likely to be used in the 2 common tumor types. The incidence rate of recurrent VTE and major bleeding events also varied among different tumor types: ranging from 1.4 (breast) to 6.4 (pancreatic) per 100 person-years for recurrent VTE and from 4.3 (prostate) to 15.1 (pancreatic) per 100 person-years for major bleeding (Figure 2).
Conclusion
There are notable variations in anticoagulant treatment patters and the risks of major bleeding and recurrent VTE events by tumor type among patients with VTE and cancer. Further research is needed to understand which anticoagulant treatment option is more appropriate for VTE patients with specific tumor type.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): Pfizer Inc. and Bristol Myers Squibb Company
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Affiliation(s)
- A D Dhamane
- Bristol Myers Squibb Company , Lawrenceville , United States of America
| | - V Noxon
- STATinMED , Ann Arbor , United States of America
| | - R Bruette
- STATinMED , Ann Arbor , United States of America
| | - S Shah
- STATinMED , Ann Arbor , United States of America
| | - M Ferri
- Bristol Myers Squibb Company , Lawrenceville , United States of America
| | - X Liu
- Bristol Myers Squibb Company , Lawrenceville , United States of America
| | - J Jang
- Bristol Myers Squibb Company , Lawrenceville , United States of America
| | - X Luo
- Pfizer Inc. , Groton , United States of America
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Moneke I, Ögütür E, Chatterjee S, Haberecker M, Jang JH, Fähndrich S, Senbaklavaci Ö, Faccioli E, Opitz I, Passlick B, Diederichs S, Jungraithmayr W. CD26-inhibition correlates with the absence of chronic lung allograft dysfunction and decreases fibroblast activity in vitro. Br J Surg 2022. [DOI: 10.1093/bjs/znac176.007] [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: 11/14/2022]
Abstract
Abstract
Objective
Chronic lung allograft dysfunction (CLAD) limits the survival after lung transplantation (Tx). CLAD is characterized by progressive fibrosis of small airways and lung parenchyma. No effective therapy is available that reverses or prevents CLAD. CD26 is a molecule with enzymatic activity also playing a key role in the progression of fibrotic diseases. Here, we analyzed the inhibitory effect of CD26 on fibroblast activity in vitro and the role of CD26-inhibition on allograft rejection in lung transplant patients.
Methods
Profibrogenic mRNA and protein levels were analyzed in vitro on the CD26-expressing fibroblast cell line Wi-38 using RT-qPCR and Western blot. CD26 was inhibited by Vildagliptin. Migration and proliferation activity of activated fibroblasts were analyzed by Incucyte® and Celltiter-Glo®. Characteristics of patients undergoing lung Tx between 2004 and 2021 were reviewed. Lung biopsies were analyzed by immunohistochemistry (IHC) for CD26.
Results
In vitro, the expression of profibrogenic genes (αSMA, FAPα, IGFBP7, Collagen 3 and Fibronectin) was significantly reduced in activated lung fibroblasts by Vildagliptin treatment. Also, migration and proliferation activity were attenuated by Vildagliptin. In 221 patients analyzed, CLAD was absent in 34 patients treated with the CD26-inhibitor Sitagliptin vs. an incidence of 18% in patients without Sitagliptin intake (p=0.02). Five-year survival in patients on Sitagliptin was significantly improved vs. patients without CD26-inhibitor intake (80% vs. 58%, p=0.006). Likewise, the incidence of acute cellular rejection (ACR) was significantly reduced in patients on Sitagliptin (7% vs. 35%, p=0.01). IHC of patient lung biopsies showed expression of CD26 in perifibrotic areas of CLAD lesions. Additional clinical data from University Hospital Zurich and from University Hospital Padua confirmed the finding that Sitagliptin intake correlated with the absence of acute and chronic allograft rejection.
Conclusion
CD26-inhibition attenuates key pro-fibrotic mediators and fibroblast activity in vitro. Impressively, patients on CD26-inhibitor did not show any CLAD. Moreover, ACR was significantly reduced. Gliptins which are in routine clinical use for the treatment of type II diabetes therefore seem to have great potential to be repurposed for a novel clinical application against lung allograft rejection.
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Affiliation(s)
- I Moneke
- Department of Thoracic Surgery, University Medical Center Freiburg , Freiburg, Germany
| | - E Ögütür
- Department of Thoracic Surgery, University Medical Center Freiburg , Freiburg, Germany
| | - S Chatterjee
- Institute for Environmental Medicine, Perelmann School of Medicine, University of Pennsylvania , Philadelphia, USA
| | - M Haberecker
- Institute of Pathology, University Hospital Zurich , Zurich, Switzerland
| | - J H Jang
- Department of Thoracic Surgery, University Hospital Zurich , Zurich, Switzerland
| | - S Fähndrich
- Department of Pneumology, University Medical Center Freiburg , Freiburg, Switzerland
| | - Ö Senbaklavaci
- Department of Thoracic Surgery, University Medical Center Freiburg , Freiburg, Germany
| | - E Faccioli
- Department of Thoracic Surgery, University Hospital of Padua , Padua, Italy
- Department of Thoracic Surgery, University Hospital Zurich , Zurich, Switzerland
| | - I Opitz
- Department of Thoracic Surgery, University Hospital Zurich , Zurich, Switzerland
| | - B Passlick
- Department of Thoracic Surgery, University Medical Center Freiburg , Freiburg, Germany
| | - S Diederichs
- Department of Thoracic Surgery, University Medical Center Freiburg , Freiburg, Germany
- German Cancer Research Center RNA Biology & Cancer, , Heidelberg, Germany
| | - W Jungraithmayr
- Department of Thoracic Surgery, University Medical Center Freiburg , Freiburg, Germany
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9
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Seo M, Ahn KJ, Choi Y, Shin NY, Jang J, Kim BS. Volumetric Measurement of Relative CBV Using T1-Perfusion-Weighted MRI with High Temporal Resolution Compared with Traditional T2*-Perfusion-Weighted MRI in Postoperative Patients with High-Grade Gliomas. AJNR Am J Neuroradiol 2022; 43:864-871. [PMID: 35618428 DOI: 10.3174/ajnr.a7527] [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: 10/13/2021] [Accepted: 04/08/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE T1-PWI with high temporal resolution may provide a reliable relative CBV value as a valid alternative to T2*-PWI under increased susceptibility. The purpose of this study was to assess the technical and clinical performance of T1-relative CBV in patients with postoperative high-grade gliomas. MATERIALS AND METHODS Forty-five MRIs of 34 patients with proved high-grade gliomas were included. In all MRIs, T1- and T2*-PWIs were both acquired and processed semiautomatically to generate relative CBV maps using a released commercial software. Lesion masks were overlaid on the relative CBV maps, followed by a histogram of the whole VOI. The intraclass correlation coefficient and Bland-Altman plots were used for quantitative and qualitative comparisons. Signal loss from both methods was compared using the Wilcoxon signed-rank test of zero voxel percentage. The MRIs were divided into a progression group (n = 20) and a nonprogression group (n = 14) for receiver operating characteristic curve analysis. RESULTS Fair intertechnique consistency was observed between the 90th percentiles of the T1- and T2*-relative CBV values (intraclass correlation coefficient = 0.558, P < .001). T2*-PWI revealed a significantly higher percentage of near-zero voxels than T1-PWI (17.7% versus 3.1%, P < .001). There was no statistically significant difference between the area under the curve of T1- and T2*-relative CBV (0.811 versus 0.793, P = .835). T1-relative CBV showed 100% sensitivity and 57.1% specificity for the detection of progressive lesions. CONCLUSIONS T1-relative CBV demonstrated exquisite diagnostic performance for detecting progressive lesions in postoperative patients with high-grade gliomas, suggesting the potential role of T1-PWI as a valid alternative to the traditional T2*-PWI.
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Affiliation(s)
- M Seo
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - K-J Ahn
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Y Choi
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - N-Y Shin
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - J Jang
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - B-S Kim
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
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10
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Song J, Chie E, Kim Y, Ryu J, Lee S, Paik W, Cho I, Kim H, Jang J, Kang H. PO-1309 Safety and efficacy of neoadjuvant stereotactic ablative radiotherapy (SABR) in pancreatic cancer. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03273-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Bedford E, Russo V, Dickman C, Li B, Jezierski A, Kim D, Jang J, Yin Y, Harrington D, Sharma R, De la Vega L, Willerth S, Salmeron L, Morgan J, Kieffer T, Beyer S, Mohamed T, Witek R, Getsios S, Wadsworth S. Tissue Engineering, Embryonic, Organ and Other Tissue Specific Stem Cells: PARTNERING TO ADVANCE THE DEVELOPMENT OF TISSUE THERAPEUTICS WITH MICROFLUIDIC 3D BIOPRINTING. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00412-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Ruiz Morales J, Nativi-Nicolau J, Jang J, Patel P, Yip D, Leoni-Moreno J, Goswami R. Artificial Intelligence 12 Lead ECG Based Heart Age Estimation and 1-year Outcomes After Heart Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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13
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Jang J, Nativi-Nicolau J, Yip D, Patel P, Leoni-Moreno J, Goswami R. Impact of SGLT2i Use on Functional Capacity in Heart Failure. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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14
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Kim H, Jang J, Song MJ, Kim G, Park CH, Lee DH, Lee SH, Chung JH. Attenuation of intrinsic aging of the skin via elimination of senescent dermal fibroblasts with senolytic drugs. J Eur Acad Dermatol Venereol 2022; 36:1125-1135. [PMID: 35274377 DOI: 10.1111/jdv.18051] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/15/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Skin aging is caused by numerous factors that result in structural and functional changes in cutaneous components. Research has shown that senescent cells are known to accumulate in skin aging, however, the role of senescent cells in skin aging has not been defined. OBJECTIVES To elucidate the role of senescent cell in skin aging, we evaluated the effect of known senolytic drugs on senescent dermal fibroblasts. METHODS Primary human dermal fibroblasts (HDFs) were induced to senescence by long-term passaging, UV irradiation, and H2O2 treatment. Cell viability was measured after treatment of ABT-263 and ABT-737 on HDFs. Young and aged hairless mice were intradermally injected with drugs or vehicle on the dorsal skin for 10 days. Skin specimens were obtained and reverse-transcription quantitative PCR, western blotting, and histological analysis were performed. RESULTS We found that ABT-263 and ABT-737 induced selective clearance of senescent dermal fibroblasts, regardless of the method of senescence induction. Aged mouse skin treated with ABT-263 or ABT-737 showed increased collagen density, epidermal thickness, and proliferation of keratinocytes, as well as decreased senescence-associated secretory phenotypes, such as MMP-1 and IL-6. CONCLUSIONS Taken together, our results indicate that selective clearance of senescent skin cells can attenuate and improve skin aging phenotypes and that senolytic drugs may be of potential use as new therapeutic agents for treating aging of the skin.
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Affiliation(s)
- H Kim
- Department of Dermatology, Seoul National University College of Medicine.,Department of Biomedical Sciences, Seoul National University Graduate School.,Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University
| | - J Jang
- Department of Dermatology, Seoul National University College of Medicine.,Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University
| | - M J Song
- Department of Dermatology, Seoul National University College of Medicine.,Department of Biomedical Sciences, Seoul National University Graduate School.,Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University
| | - G Kim
- Department of Dermatology, Seoul National University College of Medicine.,Department of Biomedical Sciences, Seoul National University Graduate School.,Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University
| | - C-H Park
- Department of Dermatology, Seoul National University College of Medicine.,Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University
| | - D H Lee
- Department of Dermatology, Seoul National University College of Medicine.,Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University
| | - S-H Lee
- Department of Dermatology, Seoul National University College of Medicine.,Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University
| | - J H Chung
- Department of Dermatology, Seoul National University College of Medicine.,Department of Biomedical Sciences, Seoul National University Graduate School.,Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University.,Institute on Aging, Seoul National University, Seoul, Republic of Korea
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15
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Dong K, Huh S, Lam G, Jang J, Franciosi A, Wilcox P, Quon B. 154: Characterizing pulmonary exacerbation inflammatory phenotypes in cystic fibrosis. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01579-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Hur SJ, Choi Y, Yoon J, Jang J, Shin NY, Ahn KJ, Kim BS. Intraindividual Comparison between the Contrast-Enhanced Golden-Angle Radial Sparse Parallel Sequence and the Conventional Fat-Suppressed Contrast-Enhanced T1-Weighted Spin-Echo Sequence for Head and Neck MRI. AJNR Am J Neuroradiol 2021; 42:2009-2015. [PMID: 34593379 DOI: 10.3174/ajnr.a7285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/25/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The golden-angle radial sparse parallel-volumetric interpolated breath-hold (GRASP-VIBE) sequence is a recently introduced imaging technique with high resolution. This study compared the image quality between conventional fat-suppressed T1-weighted TSE and GRASP-VIBE after gadolinium enhancement in the head and neck region. MATERIALS AND METHODS Data from 65 patients with clinical indications for head and neck MR imaging between September 2020 and January 2021 were retrospectively reviewed. Two radiologists assessed the overall image quality, overall artifacts, and image conspicuities in the oropharynx, hypopharynx, and cervical lymph nodes according to 5-point scores (best score: 5). Interobserver agreement was assessed using weighted κ statistics. The SNR and contrast-to-noise ratio were calculated and compared between the 2 sequences using a paired Wilcoxon signed rank test. RESULTS The analysis included 52 patients (mean age, 60 [SD, 14 ] years; male, 71.2% [37/52]) who were mostly diagnosed with head and neck malignancies (94.3% [50/52]). κ statistics ranged from slight agreement in cervical lymph node conspicuity (κ = 0.18) to substantial agreement in oropharyngeal mucosal conspicuity (κ = 0.80) (κ range, 0.18-0.80). Moreover, GRASP-VIBE demonstrated significantly higher mean scores in overall image quality (4.68 [SD, 0.41] versus 3.66 [SD, 0.73]), artifacts (4.47 [SD, 0.48] versus 3.58 [SD, 0.71]), oropharyngeal mucosal conspicuity (4.85 [SD, 0.41] versus 4.11 [SD, 0.79]), hypopharyngeal mucosal conspicuity (4.84 [SD, 0.34] versus 3.58 [SD, 0.81]), and cervical lymph node conspicuity (4.79 [SD, 0.32] versus 4.08 [SD, 0.64]) than fat-suppressed T1-weighted TSE (all, P < .001). Furthermore, GRASP-VIBE demonstrated a higher SNR (22.8 [SD, 11.5] versus 11.3 [SD, 5.6], P < .001) and contrast-to-noise ratio (4.7 [SD, 5.4] versus 2.3 [SD, 2.7], P = .059) than fat-suppressed T1-weighted TSE. CONCLUSIONS GRASP-VIBE provided better image quality with fewer artifacts than conventional fat-suppressed T1-weighted TSE for the head and neck regions.
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Affiliation(s)
- S-J Hur
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y Choi
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J Yoon
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J Jang
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - N-Y Shin
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - K-J Ahn
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - B-S Kim
- From the Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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17
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Lee C, Kim K, Kim H, Kwon W, Jang J, Lee K, Oh D, Lee K, Chie E. PD-0916 role of adjuvant chemoradiotherapy in perihilar bile duct cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07195-4] [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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18
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O'Sullivan MJ, Jang JH, Panariti A, Bedrat A, Ijpma G, Lemos B, Park JA, Lauzon AM, Martin JG. Airway Epithelial Cells Drive Airway Smooth Muscle Cell Phenotype Switching to the Proliferative and Pro-inflammatory Phenotype. Front Physiol 2021; 12:687654. [PMID: 34295265 PMCID: PMC8290262 DOI: 10.3389/fphys.2021.687654] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/03/2021] [Indexed: 12/13/2022] Open
Abstract
The increased mass of airway smooth muscle (ASM) in the airways of asthmatic patients may contribute to the pathology of this disease by increasing the capacity for airway narrowing. Evidence for the airway epithelium as a participant in ASM remodeling is accruing. To investigate mechanisms by which airway epithelial cells induce ASM cell (ASMC) proliferation, we have employed a co-culture model to explore markers of ASMC proliferative phenotype. Co-culture with epithelial cells led to incorporation of bromodeoxyuridine into ASMCs, indicating augmented proliferation and an associated increase in mRNA of the pro-proliferative co-transcription factor Elk1. Although the mitogen heparin-binding epidermal growth factor (HB-EGF) was augmented in the co-culture supernatant, the ASMC epidermal growth factor receptor (EGFR), an effector of HB-EGF induced proliferation, did not mediate epithelial-induced proliferation. The co-culture increased the expression of ASMC mRNA for the pro-inflammatory cytokines IL-6 and IL-8 as well as the pro-proliferative microRNA miR-210. The transcriptional repressor Max-binding protein (Mnt), a putative target of miR-210, was transcriptionally repressed in co-cultured ASMCs. Together, these data indicate that the airway epithelium-induced proliferative phenotype of ASMCs is not driven by EGFR signaling, but rather may be dependent on miR210 targeting of tumor suppressor Mnt.
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Affiliation(s)
- M J O'Sullivan
- Meakins-Christie Laboratories, McGill University Health Centre, Montreal, QC, Canada.,T.H. Chan School of Public Health, Harvard University, Boston, MA, United States
| | - J H Jang
- Meakins-Christie Laboratories, McGill University Health Centre, Montreal, QC, Canada
| | - A Panariti
- Meakins-Christie Laboratories, McGill University Health Centre, Montreal, QC, Canada
| | - A Bedrat
- T.H. Chan School of Public Health, Harvard University, Boston, MA, United States
| | - G Ijpma
- Meakins-Christie Laboratories, McGill University Health Centre, Montreal, QC, Canada
| | - B Lemos
- T.H. Chan School of Public Health, Harvard University, Boston, MA, United States
| | - J A Park
- T.H. Chan School of Public Health, Harvard University, Boston, MA, United States
| | - A M Lauzon
- Meakins-Christie Laboratories, McGill University Health Centre, Montreal, QC, Canada
| | - J G Martin
- Meakins-Christie Laboratories, McGill University Health Centre, Montreal, QC, Canada
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19
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Palowski A, Yang Z, Jang J, Dado T, Urriola PE, Shurson GC. Determination of in vitro dry matter, protein, and fiber digestibility and fermentability of novel corn coproducts for swine and ruminants. Transl Anim Sci 2021; 5:txab055. [PMID: 34041447 PMCID: PMC8140363 DOI: 10.1093/tas/txab055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 03/17/2021] [Indexed: 11/13/2022] Open
Abstract
New processes are being used in some dry-grind ethanol plants in the United States and Brazil to improve ethanol yield and efficiency of production while also providing nutritionally enhanced corn coproducts compared with conventional corn distillers dried grains with solubles (DDGS). The objectives of this study were to determine the chemical composition and in vitro digestibility of 5 conventional corn DDGS sources and 10 emerging novel corn coproducts for swine and ruminants, and compare coproducts produced using similar processes in the United States and Brazil. Chemical composition, on a dry matter (DM) basis, among the 15 coproducts ranged from 18.5% to 54.7% for crude protein (CP), 12.3% to 51.4% for neutral detergent fiber (NDF), 1.6% to 8.6% for acid detergent fiber, 4.7% to 12.3% for ether extract, and 1.6% to 8.6% for ash. For swine, in vitro hydrolysis of DM and CP were greater (P < 0.01) for the three U.S. corn DDGS sources compared with the two Brazilian corn DDGS sources, but in vitro fermentability of DM was comparable (P > 0.05) among all sources except one U.S. DDGS source that had less fermentable DM. High-protein and yeast dried distillers grains (Ultramax, UM; StillPro, SP) coproducts also had comparable (P > 0.05) DM fermentability for swine, but UM coproducts had greater (P < 0.01) DM and CP hydrolysis compared with SP. High-protein distillers dried grains (HP-DDG) from Brazil had greater (P < 0.01) DM and CP hydrolysis, but less (P < 0.01) DM fermentability for swine than HP-DDG produced in the United States, using the same process. For ruminants, total DM digestibility was greater (P < 0.01) in conventional DDGS sources from the United States compared with the two DDGS sources from Brazil. Total protein digestibility for ruminants was comparable and above 81% for all coproducts except for a DDGS source from Brazil, a HP-DDG source from the United States, and a UM sample. Interestingly, the corn fiber + solubles coproduct had not only relatively high digestibility of NDF (67.9%), DM (91.6%), and total CP (81.9%) for ruminants, but it also had relatively high total tract digestibility of DM (86.2%) and CP (69.9%) for swine. These results suggest that nutrient digestibility of conventional DDGS sources produced in the United States appear to be greater than corn Brazilian DDGS sources, but new process technologies being implemented in ethanol and coproduct production in both countries can enhance the nutritional value of corn coproducts for both swine and ruminants.
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Affiliation(s)
- A Palowski
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108
| | - Z Yang
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108
| | - J Jang
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108
| | - T Dado
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108
| | - P E Urriola
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108
| | - G C Shurson
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108
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20
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Son JW, Choi SH, Jang JH, Koh JT, Oh WM, Hwang YC, Lee BN. Irisin promotes odontogenic differentiation and angiogenic potential in human dental pulp cells. Int Endod J 2020; 54:399-412. [PMID: 33089893 DOI: 10.1111/iej.13435] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 12/11/2019] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 12/31/2022]
Abstract
AIM To determine whether irisin, a newly discovered myokine that links exercise-induced and metabolic homeostasis, is able to promote odontogenic differentiation and angiogenesis in human dental pulp cells (HDPCs). METHODOLOGY Cell viability in the presence of irisin was measured. Real-time PCR and Western blot analysis were performed to evaluate the expression levels of irisin, odontogenic and angiogenic markers. The involvement of mitogen-activated protein kinase (MAPK) and the protein kinase B (Akt) signalling pathway was evaluated by Western blot. To evaluate mineralization nodule formation, alkaline phosphatase (ALP) staining and alizarin red S staining were performed. Scratch wound assays were performed to evaluate the effects of irisin on cell migration. The data were analysed using one-way analysis of variance (anova) followed by Tukey post hoc test and Student's t-test. Statistical significance was considered at P < 0.05. RESULTS Irisin significantly promoted odontogenic differentiation as evidenced by formation of mineralized nodules, induction of ALP activity and upregulation of odontogenic and angiogenic markers (P < 0.05). Scratch wound assays revealed that irisin significantly increased migration of HDPCs (P < 0.05). Phosphorylation of both MAPK and Akt was increased by irisin. MAPK and Akt inhibitors inhibited mineralization, cell migration and the increased expression of odontogenic and angiogenic markers. CONCLUSIONS Irisin promoted odontogenic differentiation and mineralization and has the potential for angiogenesis through activation of the MAPK and Akt signalling pathways in HDPCs.
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Affiliation(s)
- J W Son
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - S H Choi
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - J H Jang
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - J T Koh
- Department of Pharmacology and Dental Therapeutics, Hard-tissue Biointerface Research Center, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - W M Oh
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - Y C Hwang
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - B N Lee
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
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21
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Choi Y, Nam Y, Jang J, Shin NY, Ahn KJ, Kim BS, Lee YS, Kim MS. Prediction of Human Papillomavirus Status and Overall Survival in Patients with Untreated Oropharyngeal Squamous Cell Carcinoma: Development and Validation of CT-Based Radiomics. AJNR Am J Neuroradiol 2020; 41:1897-1904. [PMID: 32943420 DOI: 10.3174/ajnr.a6756] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 07/03/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND PURPOSE Human papillomavirus is a prognostic marker for oropharyngeal squamous cell carcinoma. We aimed to determine the value of CT-based radiomics for predicting the human papillomavirus status and overall survival in patients with oropharyngeal squamous cell carcinoma. MATERIALS AND METHODS Eighty-six patients with oropharyngeal squamous cell carcinoma were retrospectively collected and grouped into training (n = 61) and test (n = 25) sets. For human papillomavirus status and overall survival prediction, radiomics features were selected via a random forest-based algorithm and Cox regression analysis, respectively. Relevant features were used to build multivariate Cox regression models and calculate the radiomics score. Human papillomavirus status and overall survival prediction were assessed via the area under the curve and concordance index, respectively. The models were validated in the test and The Cancer Imaging Archive cohorts (n = 78). RESULTS For prediction of human papillomavirus status, radiomics features yielded areas under the curve of 0.865, 0.747, and 0.834 in the training, test, and validation sets, respectively. In the univariate Cox regression, the human papillomavirus status (positive: hazard ratio, 0.257; 95% CI, 0.09-0.7; P = .008), T-stage (≥III: hazard ratio, 3.66; 95% CI, 1.34-9.99; P = .011), and radiomics score (high-risk: hazard ratio, 3.72; 95% CI, 1.21-11.46; P = .022) were associated with overall survival. The addition of the radiomics score to the clinical Cox model increased the concordance index from 0.702 to 0.733 (P = .01). Validation yielded concordance indices of 0.866 and 0.720. CONCLUSIONS CT-based radiomics may be useful in predicting human papillomavirus status and overall survival in patients with oropharyngeal squamous cell carcinoma.
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Affiliation(s)
- Y Choi
- Department of Radiology (Y.C., Y.N., J.J., N.-Y.S, K.-J.A., B.-S.K.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y Nam
- Department of Radiology (Y.C., Y.N., J.J., N.-Y.S, K.-J.A., B.-S.K.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Division of Biomedical Engineering (Y.N.), Hankuk University of Foreign Studies, Yongin-Si, Gyeonggi-do, Republic of Korea
| | - J Jang
- Department of Radiology (Y.C., Y.N., J.J., N.-Y.S, K.-J.A., B.-S.K.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - N-Y Shin
- Department of Radiology (Y.C., Y.N., J.J., N.-Y.S, K.-J.A., B.-S.K.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - K-J Ahn
- Department of Radiology (Y.C., Y.N., J.J., N.-Y.S, K.-J.A., B.-S.K.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - B-S Kim
- Department of Radiology (Y.C., Y.N., J.J., N.-Y.S, K.-J.A., B.-S.K.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y-S Lee
- Department of Hospital Pathology (Y.-S.L.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - M-S Kim
- Department of Otolaryngology-Head and Neck Surgery (M.S.K.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Jang M, Seong S, Kwon D, Jang J, Park J, Suh K. 368 Epidemiology and clinical outcomes of 151 patients with mycosis fungoides at the Kosin University Gospel Hospital: Retrospective 27-year review. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Lee J, Kim S, Lee S, Suh I, Jang J, Jhoo J. 0047 The Change in Melatonin Rhythm Depending on Dementia Severity in Alzheimer’s Disease (AD) Patients. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.046] [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: 11/12/2022] Open
Abstract
Abstract
Introduction
In Alzheimer’s disease (AD), both sleep and circadian dysfunctions are commonly reported and these are associated with neurodegenerative change. Actually, it has been reported that changes in circadian rhythms in AD were apparently discrete from those seen in normal aging. Previous studies reported the delayed phase in the activity or core body temperature rhythms in severe AD patients compared to normal controls. However, it is unknown whether similar changes in melatonin rhythms occur in AD patients who were not severely demented. We aimed to compare melatonin rhythms depending on dementia severity in mild and moderate AD patients.
Methods
We recruited AD patients of mild or moderate degree who had the Pittsburgh Sleep Quality Index (PSQI) score of 5 or greater and/or complained insomnia symptoms more than 3 times a week for a month. The patients were classified according to their Clinical Dementia Rating (CDR) score into 3 groups (CDR=0.5, 1, 2). The dim light melatonin onset (DLMO) was determined from seven hourly saliva samples obtained in the laboratory prior to sleep onset measured by actigraphy. The phase angle between the DLMO and sleep onset (PA-SO), and that between the DLMO and midsleep time (PA-MST) were calculated. Each group included 13, 13 and 6 AD patients with the CDR score of 0.5, 1 and 2, respectively. The DLMO and PA were compared among the 3 groups, and correlation analyses of the DLMO and PA with the MMSE in the Korean version of CERAD Packet (MMSE-KC) scores were done in total patients.
Results
There was no significant difference in the DLMO and PA between the 3 groups. The MMSE-KC score was positively correlated with the DLMO and negatively correlated with the PA-MST.
Conclusion
There were no changes in melatonin rhythms according to dementia severity in mild and moderate AD patients with sleep complaints. However, our study showed that earlier melatonin phase was associated with more impaired cognitive function.
Support
Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2017R1A2B4003493)
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Affiliation(s)
- J Lee
- Department of Psychiatry, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
- Department of Psychiatry, Kangwon National University School of Medicine, Chunchon, KOREA, REPUBLIC OF
| | - S Kim
- Department of Psychiatry, Doeun Hospital, Jincheon, KOREA, REPUBLIC OF
| | - S Lee
- Department of Psychiatry, Silverheals Hospital, Namyangju, KOREA, REPUBLIC OF
| | - I Suh
- Department of Laboratory Medicine, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
| | - J Jang
- Department of Neurology, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
| | - J Jhoo
- Department of Psychiatry, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
- Department of Psychiatry, Kangwon National University School of Medicine, Chunchon, KOREA, REPUBLIC OF
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24
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Anderson E, Jang J, Venterea R, Feyereisen G, Ishii S. Isolation and characterization of denitrifiers from woodchip bioreactors for bioaugmentation application. J Appl Microbiol 2020; 129:590-600. [DOI: 10.1111/jam.14655] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/28/2020] [Accepted: 03/27/2020] [Indexed: 12/13/2022]
Affiliation(s)
- E.L. Anderson
- Department of Soil, Water, and Climate University of Minnesota St. Paul MN USA
| | - J. Jang
- BioTechnology Institute University of Minnesota St. Paul MN USA
| | - R.T. Venterea
- Department of Soil, Water, and Climate University of Minnesota St. Paul MN USA
- USDA‐ARS Soil and Water Management Research Unit St. Paul MN USA
| | - G.W. Feyereisen
- USDA‐ARS Soil and Water Management Research Unit St. Paul MN USA
| | - S. Ishii
- Department of Soil, Water, and Climate University of Minnesota St. Paul MN USA
- BioTechnology Institute University of Minnesota St. Paul MN USA
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25
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Jen J, Jang J, Zhang J, Tang A, Pierson K, Schrandt A, Xie H, Yang P, Mandreka S, Mansfield A. P1.01-45 A NGS-Based ctDNA Test to Monitor Disease Progression and Treatment Response in Advanced Stage Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Jang J, Haberecker M, Curioni A, Janker F, Soltermann A, Gil-Bazo I, Hwang I, Kwon K, Weder W, Jungraithmayr W. EP1.03-33 CD26/DPP4 as a Novel Prognostic Marker for Lung Adenocarcinoma. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Kim N, Jung Y, Jang J, Cheon D, Koh W, Kim J, Ko J, Ro Y. 563 Incisional biopsy-induced spontaneous regression with halo phenomenon in a congenital melanocytic nevus. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Choi J, Kim B, Choi Y, Shin NY, Jang J, Choi HS, Jung SL, Ahn KJ. Image Quality of Low-Dose Cerebral Angiography and Effectiveness of Clinical Implementation on Diagnostic and Neurointerventional Procedures for Intracranial Aneurysms. AJNR Am J Neuroradiol 2019; 40:827-833. [PMID: 30948380 DOI: 10.3174/ajnr.a6029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 02/27/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Awareness of the potential for exposure to high doses of radiation from interventional radiologic procedures has increased. The purpose of this study was to evaluate image quality and dose reduction of low-dose cerebral angiography during diagnostic and therapeutic procedures for intracranial aneurysms. MATERIALS AND METHODS A retrospective review of 1137 prospectively collected patients between January 2012 and June 2014 was performed. Beginning in April 2013, a dose-reduction strategy was implemented. Subjective image-quality assessment of 506 standard and 540 low-dose cerebral angiography images was performed by 2 neuroradiologists using a 5-point scale and was tested using noninferiority statistics. Radiation dose-area product and air kerma of 1046 diagnostic and 317 therapeutic procedures for intracranial aneurysms were analyzed and compared between groups before (group 1) and after (group 2) clinical implementation of a dose-reduction strategy. RESULTS The image quality of the low-dose cerebral angiography was not inferior on the basis of results from the 2 readers. For diagnostic cerebral angiography, the mean dose-area product and air kerma were 140.8 Gy×cm2 and 1.0 Gy, respectively, in group 1 and 82.0 Gy×cm2 and 0.6 Gy in group 2 (P < .001, P < .001). For the neurointerventional procedure, the mean dose-area product and air kerma were 246.0 Gy×cm2 and 3.7 Gy, respectively, in group 1 and 169.8 Gy×cm2 and 3.3 Gy in group 2 (P < .001, P = .291). CONCLUSIONS With low-dose cerebral angiography, image quality was maintained, and implementation of dose-reduction strategies reduced radiation doses in patients undergoing diagnostic and neurointerventional procedures for intracranial aneurysms.
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Affiliation(s)
- J Choi
- From the Department of Radiology (J.C.), St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Gyeonggi-do, Republic of Korea
| | - B Kim
- Department of Radiology (B.K., Y.C., N.Y.S., J.J., H.S.C., S.L.J., K.J.A.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
| | - Y Choi
- Department of Radiology (B.K., Y.C., N.Y.S., J.J., H.S.C., S.L.J., K.J.A.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - N Y Shin
- Department of Radiology (B.K., Y.C., N.Y.S., J.J., H.S.C., S.L.J., K.J.A.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - J Jang
- Department of Radiology (B.K., Y.C., N.Y.S., J.J., H.S.C., S.L.J., K.J.A.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - H S Choi
- Department of Radiology (B.K., Y.C., N.Y.S., J.J., H.S.C., S.L.J., K.J.A.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - S L Jung
- Department of Radiology (B.K., Y.C., N.Y.S., J.J., H.S.C., S.L.J., K.J.A.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - K J Ahn
- Department of Radiology (B.K., Y.C., N.Y.S., J.J., H.S.C., S.L.J., K.J.A.), Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Oh S, Jang JH, Kim HJ, Seo NS, Byun SH, Kim SW, Kim DS. Long-term Follow-up of Complicated Crown Fracture With Fragment Reattachment: Two Case Reports. Oper Dent 2019; 44:574-580. [PMID: 30702408 DOI: 10.2341/18-201-t] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Two cases of complicated crown fracture of the maxillary incisors were restored using the fragment reattachment technique. Root canal treatment was performed, and the fractured fragment was bonded to the tooth structure using a dentin adhesive system and a flowable composite resin, followed by the insertion of a fiber post using dual-cured resin cement. Reattached fragments have shown reliable prognosis without inflammatory signs around bonded junctions after long-term follow-up.
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30
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Jang J, Zeng Z, Shurson G, Urriola P. 166 Effect of gas production recording system and inoculum volume on in vitro fermentation of corn distillers dried grains with solubles (cDDGS) or soybean hulls using pig fecal inoculum. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.644] [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: 11/14/2022] Open
Affiliation(s)
- J Jang
- Department of Animal Science, University of Minnesota, Falcon Heights, MN, United States
| | - Z Zeng
- Department of Animal Science, University of Minnesota,Minneapolis, MN, United States
| | - G Shurson
- Department of Animal Science, University of Minnesota,Minneapolis, MN, United States
| | - P Urriola
- Department of Animal Science, University of Minnesota,Minneapolis, MN, United States
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31
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Zeng Z, Trudeau M, Li Q, Wang D, Jang J, Shurson G, Urriola P. 198 Effects of exogenous proteinases and carbohydrases on growth performance in pigs fed different grain-based diets: A meta-analysis. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Z Zeng
- Department of Animal Science, University of Minnesota,Minneapolis, MN, United States
| | - M Trudeau
- Department of Animal Science, University of Minnesota,Hastings, MN, United States
| | - Q Li
- Department of Animal Science, Iowa State University,Ames, IA, United States
| | - D Wang
- Department of Animal Science, University of Kentucky,Lexington, KY, United States
| | - J Jang
- Department of Animal Science, University of Minnesota, Falcon Heights, MN, United States
| | - G Shurson
- Department of Animal Science, University of Minnesota, Falcon Heights, MN, United States
| | - P Urriola
- Department of Animal Science, University of Minnesota, Falcon Heights, MN, United States
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32
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Xu T, Liu X, Liu Q, Han K, Liu Y, Jang J, Huang X, Zhao D, Bi K, Sun W, Li Y. Effect of experimental infections of various Tembusu virus strains isolated from geese, ducks and chickens on ducklings. Pol J Vet Sci 2018; 21:389-396. [PMID: 30450880 DOI: 10.24425/122613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In order to compare the pathogenicity of different Tembusu virus (TMUV) strains from geese, ducks and chickens, 56 5-day-old Cherry Valley ducklings which were divided into 7 groups and infected intramuscularly with 7´105 PFU/ml per duck of six challenge virus stocks. The clinical signs, weight gain, mortality, macroscopic and microscopic lesions, virus loads in sera of 1, 3, 5, 7, 11 and 14 dpi and serum antibody titers were examined. The results showed that these viruses could make the young ducks sick, but the clinical signs differed with the different species-original strains. All the experimental groups lose markedly in weight gain compared to the control, but there were no obvious distinctions in weight gains, as well as macroscopic and microscopic lesions of dead ducks between the infected groups. However, the groups of waterfowl-derived strains (from geese and ducks) showed more serious clinical signs and higher relative expressions of virus loads in sera than those from chicken-derived. The mortality of waterfowl groups was 37.5%, and the greatest mortality of chicken groups was 12.5%. The serum antibodies of the geese-species group JS804 appeared earlier and were higher in the titers than others. Taken toghter, the pathogenicity of waterfowl-derived TMUV was more serious than chicken-derived TMUV and JS804 could be chosen as one TMUV vaccine strain to protect from the infection.
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Affiliation(s)
- T Xu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China.,Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - X Liu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China.,Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Q Liu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China
| | - K Han
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China
| | - Y Liu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China
| | - J Jang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China
| | - X Huang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China
| | - D Zhao
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China
| | - K Bi
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China
| | - W Sun
- Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Y Li
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research on Veterinary Bio-products, Nanjing, Jiangsu Province, China
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Kim K, Jang J, Jang J, Yu Y. Psychobiological marker of Electrodermal activity in depression. Int J Psychophysiol 2018. [DOI: 10.1016/j.ijpsycho.2018.07.291] [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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Jang J, Hillinger S, Haberecker M, Curioni Fontecedro A, Janker F, Gil-Bazo I, Hwang I, Kwon K, Weder W, Soltermann A, Jungraithmayr W. P2.01-51 Study of CD26/DPP4 Expression in a Large Series of Non-Small Cell Lung Cancer Patients. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1105] [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: 10/28/2022]
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35
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Hassan NM, Kim YJ, Jang J, Chang BU, Chae JS. Comparative study of precise measurements of natural radionuclides and radiation dose using in-situ and laboratory γ-ray spectroscopy techniques. Sci Rep 2018; 8:14115. [PMID: 30237485 PMCID: PMC6148265 DOI: 10.1038/s41598-018-32220-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 04/05/2018] [Accepted: 08/20/2018] [Indexed: 11/08/2022] Open
Abstract
In this study, in-situ and laboratory γ-ray spectroscopy techniques were compared to evaluate the activity concentration of natural radionuclides in soil. The activity concentrations of 238U (226Ra), 232Th, and 40K in the soil in 11 sites were simultaneously measured with in-situ portable HPGe and the NaI(Tl) detectors. In parallel, 55 soil samples collected from these sites were analyzed with a laboratory γ-ray spectroscopy technique (HPGe). A strong correlation was observed between the in-situ and laboratory HPGe techniques with a linear correlation coefficient (R2) of 0.99 for 226Ra and 232Th and 0.975 for 40K, respectively. The in-situ HPGe technique shows a strong correlation with the NaI(Tl) detector. γ-Rays cps of 226Ra, 232Th, and 40K of the NaI (Tl) detector were then converted to specific activities (Bq kg-1 unit) in soil using the empirical formulas obtained in this study. The absorbed dose rate in air at 1 m height above ground due to these radionuclides was calculated using the Beck's formula and the results were compared with measured values obtained with an high pressure ionization chamber. The results of the calculated and measured dose rate show a strong correlation of R2 = 0.96. The reliability and precision of analytical spectroscopy techniques of radioactivity and radiation dose were confirmed in this work.
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Affiliation(s)
- N M Hassan
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea
- Department of Physics, Faculty of Science, Zagazig University, PO Box 44519, Zagazig, Egypt
| | - Y J Kim
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea.
| | - J Jang
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea
| | - B U Chang
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea
| | - J S Chae
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea
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Kim J, Jang J, Bae S, An I, An S. LB1534 miR-140-3p regulates keratinocyte differentiation by modulating adhesion molecule through suppression of PAK2. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.06.067] [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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37
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Jang JH, Wu YN, Kim SJ, Zhang YH. P927Neuronal nitric oxide synthase-beta in the myofilament and maintains sarcomere structure in cardiomyocyte. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J H Jang
- Seoul National University, Seoul, Korea Republic of
| | - Y N Wu
- Seoul National University, Seoul, Korea Republic of
| | - S J Kim
- Seoul National University, Seoul, Korea Republic of
| | - Y H Zhang
- Seoul National University, Seoul, Korea Republic of
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Park H, Kim B, Kim B, Kim G, Park J, Jang J. The relationship of chronotype, objectively-measured physical activity and dementia in older adults. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.596] [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: 10/28/2022]
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39
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Jang J, Ahn C, Park S. Genome-wide association study to discover susceptible loci for gastric cancer in Korean population. Rev Epidemiol Sante Publique 2018. [DOI: 10.1016/j.respe.2018.05.155] [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: 10/28/2022] Open
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Kim S, Jang J, Kim J, Lee J. 1374 Comparison of anti-inflammatory and tissue-regenerative effects of mesenchymal stem cells conditioned mediums derived from different sources. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1391] [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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41
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Jang M, Jang J, Yang M, Suh K. 523 Low dose methotrexate treatment for primary cutaneous CD30+ lymphoproliferative disorders: A long-term follow-up. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.531] [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: 10/17/2022]
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42
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Kim J, Jang J, Kim S, Lee Y, Lee J. 1409 High-throughput drug screening system targeting tissue fibrosis: An application of PDMS stretch platform. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1427] [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: 10/17/2022]
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43
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Lee JH, Kim SJ, Lee SH, Suh IB, Jang J, Jhoo JH. 1022 Changes in The Sleep Quality And Caregiver Burden by Timed Blue Light in Alzheimer`s Disease. Sleep 2018. [DOI: 10.1093/sleep/zsy061.1021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J H Lee
- Department of Psychiatry, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
- Department of Psychiatry, Kangwon National University School of Medicine, Chunchon, KOREA, REPUBLIC OF
| | - S J Kim
- Department of Psychiatry, Doeun Hospital, Jincheon, KOREA, REPUBLIC OF
| | - S H Lee
- Department of Psychiatry, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
| | - I B Suh
- Department of Laboratory Medicine, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
| | - J Jang
- Department of Neurology, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
| | - J H Jhoo
- Department of Psychiatry, Kangwon National University Hospital, Chunchon, KOREA, REPUBLIC OF
- Department of Psychiatry, Kangwon National University School of Medicine, Chunchon, KOREA, REPUBLIC OF
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Jang J, Jeon U, Kim J. Abstract No. 712 Safety and efficacy for primary portal vein stenting after liver transplantation: comparison of three different approaches. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Kim J, Jeon U, Jang J. Abstract No. 704 Single-session 99.5% ethanol sclerotherapy for simple renal cysts: comparison of 40- and 120-minute retention techniques. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.749] [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: 10/17/2022] Open
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Ogata K, Jeon S, Ko DS, Jung IS, Kim JH, Ito K, Kubo Y, Takei K, Saito S, Cho YH, Park H, Jang J, Kim HG, Kim JH, Kim YS, Choi W, Koh M, Uosaki K, Doo SG, Hwang Y, Han S. Evolving affinity between Coulombic reversibility and hysteretic phase transformations in nano-structured silicon-based lithium-ion batteries. Nat Commun 2018; 9:479. [PMID: 29396479 PMCID: PMC5797158 DOI: 10.1038/s41467-018-02824-w] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 01/02/2018] [Indexed: 11/09/2022] Open
Abstract
Nano-structured silicon is an attractive alternative anode material to conventional graphite in lithium-ion batteries. However, the anode designs with higher silicon concentrations remain to be commercialized despite recent remarkable progress. One of the most critical issues is the fundamental understanding of the lithium-silicon Coulombic efficiency. Particularly, this is the key to resolve subtle yet accumulatively significant alterations of Coulombic efficiency by various paths of lithium-silicon processes over cycles. Here, we provide quantitative and qualitative insight into how the irreversible behaviors are altered by the processes under amorphous volume changes and hysteretic amorphous-crystalline phase transformations. Repeated latter transformations over cycles, typically featured as a degradation factor, can govern the reversibility behaviors, improving the irreversibility and eventually minimizing cumulative irreversible lithium consumption. This is clearly different from repeated amorphous volume changes with different lithiation depths. The mechanism behind the correlations is elucidated by electrochemical and structural probing.
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Affiliation(s)
- K Ogata
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea.
- Samsung Research Institute of Japan, Samsung Electronics, 2-1-11, Senba-nishi, Mino-shi, Osaka-fu, 562-0036, Japan.
| | - S Jeon
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea.
| | - D-S Ko
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - I S Jung
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - J H Kim
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - K Ito
- C4GR-GREEN, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Y Kubo
- C4GR-GREEN, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - K Takei
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - S Saito
- Samsung Research Institute of Japan, Samsung Electronics, 2-1-11, Senba-nishi, Mino-shi, Osaka-fu, 562-0036, Japan
| | - Y-H Cho
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - H Park
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - J Jang
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - H-G Kim
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - J-H Kim
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - Y S Kim
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - W Choi
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - M Koh
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - K Uosaki
- C4GR-GREEN, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - S G Doo
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - Y Hwang
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea
| | - S Han
- Samsung Advanced Institute of Technology, Samsung Electronics, Samsung-ro 130, Suwon, Gyeonggi-do, 16678, Korea.
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Jang JH, Moon J, Ha HY, Lee TH, Suh DW. Quantum-mechanical analysis of effect of alloying elements on ε-martensite start temperature of steels. Sci Rep 2017; 7:17860. [PMID: 29259306 PMCID: PMC5736593 DOI: 10.1038/s41598-017-18230-z] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 12/07/2017] [Indexed: 12/01/2022] Open
Abstract
With regard to the transformation mechanism of austenitic high manganese steel, the prediction of the ε-martensite start temperature is a critical consideration in alloy design. Evaluation of the ε-martensite start temperature makes it possible to predict the microstructure and to understand the phase transformation occurring during deformation. Here we use the quantum mechanical calculation of random alloys to understand the physics for ε-martensitic transformation in steels. We could find the linear relationship between the measured ε-martensite start temperatures and the crystal structure stability for various compositions. We also could estimate the effect of several alloying elements. It is expected that the effect of decreasing the temperatures for the same amount of alloying elements addition will be larger moving farther from Group VIII. By creating a free-energy model that reflects the temperature effect, we were able to calculate the average driving force required for the ε-martensitic transformations.
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Affiliation(s)
- J H Jang
- Ferrous Alloy Department, Korea Institute of Materials Science, Changwon, 51508, Republic of Korea.
| | - J Moon
- Ferrous Alloy Department, Korea Institute of Materials Science, Changwon, 51508, Republic of Korea
| | - H-Y Ha
- Ferrous Alloy Department, Korea Institute of Materials Science, Changwon, 51508, Republic of Korea
| | - T-H Lee
- Ferrous Alloy Department, Korea Institute of Materials Science, Changwon, 51508, Republic of Korea
| | - D-W Suh
- Graduate Institute of Ferrous Technology, POSTECH, Pohang, 37673, Republic of Korea
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48
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Jang J, Janker F, Yamada Y, Weder W, Jungraithmayr W. P1.02-015 Comparison of Study Models of Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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49
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Jang J, Han H, Kim S, Kim H, Kim J, Lee T, Lee J. 701 Development of drug screening platform for keloid treatment. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.378] [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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50
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Seon CR, Hong JH, Song I, Jang J, Lee HY, An YH, Kim BS, Jeon TM, Park JS, Choe W, Lee HG, Pak S, Cheon MS, Choi JH, Kim HS, Biel W, Bernascolle P, Barnsley R. VUV spectroscopy in impurity injection experiments at KSTAR using prototype ITER VUV spectrometer. Rev Sci Instrum 2017; 88:083511. [PMID: 28863699 DOI: 10.1063/1.4998970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ITER vacuum ultra-violet (VUV) core survey spectrometer has been designed as a 5-channel spectral system so that the high spectral resolving power of 200-500 could be achieved in the wavelength range of 2.4-160 nm. To verify the design of the ITER VUV core survey spectrometer, a two-channel prototype spectrometer was developed. As a subsequent step of the prototype test, the prototype VUV spectrometer has been operated at KSTAR since the 2012 experimental campaign. From impurity injection experiments in the years 2015 and 2016, strong emission lines, such as Kr xxv 15.8 nm, Kr xxvi 17.9 nm, Ne vii 46.5 nm, Ne vi 40.2 nm, and an array of largely unresolved tungsten lines (14-32 nm) could be measured successfully, showing the typical photon number of 1013-1015 photons/cm2 s.
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Affiliation(s)
- C R Seon
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - J H Hong
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - I Song
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - J Jang
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - H Y Lee
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - Y H An
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - B S Kim
- Department of Energy Systems Research, Ajou University, Suwon 443-749, South Korea
| | - T M Jeon
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - J S Park
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - W Choe
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - H G Lee
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - S Pak
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - M S Cheon
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - J H Choi
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - H S Kim
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - W Biel
- Institut für Plasmaphysik, Forschungszentrum Jülich Gmbh, EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - P Bernascolle
- ITER Organization, Route de Vinon-sur-Verdon - CS 90 046, 13067 Saint-Paul-lez-Durance, France
| | - R Barnsley
- ITER Organization, Route de Vinon-sur-Verdon - CS 90 046, 13067 Saint-Paul-lez-Durance, France
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