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Guan S, Wang L, Hao L, Yoshida H, Itoi T, Lu Y, Terashima C, Fujishima A. Achieving water-floatable photocatalyst on recycled bamboo chopsticks. Sci Rep 2024; 14:9496. [PMID: 38664484 DOI: 10.1038/s41598-024-60272-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 04/21/2024] [Indexed: 04/28/2024] Open
Abstract
Disposable bamboo chopsticks (DBCs) are difficult to recycle, which inevitably cause secondary pollution. Based on energy and environmental issues, we propose a facile strategy to fabricate floatable photocatalyst (fPC) coated onto DBCs, which can be flexibly used in water purification. The photocatalyst of titania and titanium carbide on bamboo (TiO2/TiC@b) was successfully constructed from TiC-Ti powders and DBCs using a coating technique followed heat treatment in carbon powder, and the fPC exhibited excellent photocatalytic activity under visible light irradation. The analysis results indicate that rutile TiO2 forms on TiC during heat treatment, achieving a low-density material with an average value of approximately 0.5233 g/cm3. The coatings of TiO2/TiC on the bamboo are firm and uniform, with a particle size of about 20-50 nm. XPS results show that a large amount of oxygen vacancies is generated, due to the reaction atmosphere of more carbon and less oxygen, further favoring to narrowing the band gap of TiO2. Furthermore, TiO2 formed on residual TiC would induce the formation of a heterojunction, which effectively inhibits the photogenerated electron-hole recombination via the charge transfer effect. Notably, the degradation of dye Rhodamine B (Rh.B) is 62.4% within 3 h, while a previous adsorption of 36.0% for 1 h. The excellent photocatalytic performance of TiO2/TiC@b can be attributed to the enhanced reaction at the water/air interface due to the reduced light loss in water, improved visible-light response, increased accessible area and charge transfer effect. Our findings show that the proposed strategy achieves a simple, low-cost, and mass-producible method to fabricate fPC onto the used DBCs, which is expected to applied in multiple fields, especially in waste recycling and water treatment.
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Affiliation(s)
- Sujun Guan
- Research Center for Space System Innovation, Tokyo University of Science, Chiba, 2788510, Japan
| | - Lijun Wang
- School of Intelligent Manufacturing, Chengdu Technological University, Chengdu, 610031, China.
| | - Liang Hao
- College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin, 300222, China
| | - Hiroyuki Yoshida
- Chiba Industrial Technology Research Institute, Chiba, 2630016, Japan
| | - Takaomi Itoi
- Graduate School and Faculty of Engineering, Chiba University, Chiba, 2638522, Japan
| | - Yun Lu
- School of Intelligent Manufacturing, Chengdu Technological University, Chengdu, 610031, China
- Graduate School and Faculty of Engineering, Chiba University, Chiba, 2638522, Japan
| | - Chiaki Terashima
- Research Center for Space System Innovation, Tokyo University of Science, Chiba, 2788510, Japan
- Department of Pure and Applied Chemistry, Tokyo University of Science, Chiba, 2788510, Japan
| | - Akira Fujishima
- Research Center for Space System Innovation, Tokyo University of Science, Chiba, 2788510, Japan
- Shanghai Institute of Photocatalysis Industrial Technology, University of Shanghai for Science and Technology, Shanghai, 200093, China
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Yokode M, Shiokawa M, Kawakami H, Kuwada T, Nishikawa Y, Muramoto Y, Kitamoto H, Okabe M, Yamazaki H, Okamoto N, Morita T, Ohno K, Nakanishi R, Takimoto I, Yasuda M, Chikugo K, Matsumoto S, Yoshida H, Ota S, Nakamura T, Okada H, Hirano T, Kakiuchi N, Matsumori T, Yamamoto S, Uza N, Ooi M, Kodama Y, Chiba T, Hayashi H, Seno H. Anti-integrin αvβ6 autoantibodies are a potential biomarker for ulcerative colitis-like immune checkpoint inhibitor-induced colitis. Br J Cancer 2024:10.1038/s41416-024-02647-1. [PMID: 38461170 DOI: 10.1038/s41416-024-02647-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/25/2024] [Accepted: 02/27/2024] [Indexed: 03/11/2024] Open
Abstract
BACKGROUND No specific biomarker for immune checkpoint inhibitor (ICI)-induced colitis has been established. Previously, we identified anti-integrin αvβ6 autoantibodies in >90% of patients with ulcerative colitis (UC). Given that a subset of ICI-induced colitis is similar to UC, we aimed to clarify the relationship between such autoantibodies and ICI-induced colitis. METHODS Serum anti-integrin αvβ6 autoantibody levels were compared between 26 patients with ICI-induced colitis and 157 controls. Endoscopic images of ICI-induced colitis were centrally reviewed. Characteristics of anti-integrin αvβ6 autoantibodies in the ICI-induced colitis patients were compared with those of UC patients. RESULTS Anti-integrin αvβ6 autoantibodies were found in 8/26 (30.8%) patients with ICI-induced colitis and 3/157 (1.9%) controls (P < 0.001). Patients with anti-integrin αvβ6 autoantibodies had significantly more typical UC endoscopic features than those without the autoantibodies (P < 0.001). Anti-integrin αvβ6 autoantibodies in ICI-induced colitis patients were associated with grade ≥3 colitis (P = 0.001) and steroid resistance (P = 0.005). Anti-integrin αvβ6 autoantibody titers correlated with ICI-induced colitis disease activity. Anti-integrin αvβ6 autoantibodies of ICI-induced colitis exhibited similar characteristics to those of UC. CONCLUSIONS Anti-integrin αvβ6 autoantibodies may serve as potential biomarkers for the diagnosis, classification, risk management, and monitoring the disease activity, of ICI-induced colitis.
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Affiliation(s)
- Masataka Yokode
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masahiro Shiokawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Hisato Kawakami
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka, Japan.
| | - Takeshi Kuwada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshihiro Nishikawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuya Muramoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroki Kitamoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Makoto Okabe
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hajime Yamazaki
- Section of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Norihiro Okamoto
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Toshihiro Morita
- Department of Gastroenterology and Hepatology, Kitano Hospital, Tazuke Kofukai Medical Research Institute, Osaka, Japan
| | - Kazuya Ohno
- Department of Gastroenterology, Shizuoka General Hospital, Shizuoka, Japan
| | - Risa Nakanishi
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ikuhisa Takimoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Muneji Yasuda
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koki Chikugo
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shimpei Matsumoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroyuki Yoshida
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sakiko Ota
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeharu Nakamura
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirokazu Okada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomonori Hirano
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Nobuyuki Kakiuchi
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoaki Matsumori
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shuji Yamamoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Norimitsu Uza
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Makoto Ooi
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Tsutomu Chiba
- Department of Gastroenterology and Hepatology, Kansai Electric Power Hospital, Osaka, Japan
| | - Hidetoshi Hayashi
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Perkovich E, Laakman A, Mire S, Yoshida H. Conducting head-mounted eye-tracking research with young children with autism and children with increased likelihood of later autism diagnosis. J Neurodev Disord 2024; 16:7. [PMID: 38438975 PMCID: PMC10910727 DOI: 10.1186/s11689-024-09524-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/16/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Over the past years, researchers have been using head-mounted eye-tracking systems to study young children's gaze behaviors in everyday activities through which children learn about the world. This method has great potential to further our understanding of how millisecond-level gaze behaviors create multisensory experiences and fluctuate around social environments. While this line of work can yield insight into early perceptual experiences and potential learning mechanisms, the majority of the work is exclusively conducted with typically-developing children. Sensory sensitivities, social-communication difficulties, and challenging behaviors (e.g., disruption, elopement) are common among children with developmental disorders, and they may represent potential methodological challenges for collecting high-quality data. RESULTS In this paper, we describe our research practices of using head-mounted eye trackers with 41 autistic children and 17 children with increased likelihood of later autism diagnosis without auditory or visual impairments, including those who are minimally or nonspeaking and/or have intellectual disabilities. The success rate in gathering data among children with autism was 92.68%. 3 of 41 children failed to complete the play-session, resulting in an 86.36% success rate among 1-4-year-olds and a 100.00% success rate among 5-8-year-olds. 1 of 17 children with increased likelihood of later autism diagnosis failed to complete the play-session, resulting in a success rate of 94.11%. There were numerous "challenging" behaviors relevant to the method. The most common challenging behaviors included taking the eye-tracking device off, elopement, and becoming distressed. Overall, among children with autism, 88.8% of 1-4-year-olds and 29.4% of 5-8-year-olds exhibited at least one challenging behavior. CONCLUSIONS Research capitalizing on this methodology has the potential to reveal early, socially-mediated gaze behaviors that are relevant for autism screening, diagnosis, and intervention purposes. We hope that our efforts in documenting our study methodology will help researchers and clinicians effectively study early naturally-occuring gaze behaviors of children during non-experimental contexts across the spectrum and other developmental disabilities using head-mounted eye-tracking. Ultimately, such applications may increase the generalizability of results, better reflect the diversity of individual characteristics, and offer new ways in which this method can contribute to the field.
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Affiliation(s)
| | - A Laakman
- University of Houston, Houston, TX, USA
| | - S Mire
- Baylor University, Waco, TX, USA
| | - H Yoshida
- University of Houston, Houston, TX, USA
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4
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Yoshida H, Morita T, Abe Y, Inagaki A, Tomita N, Izutsu KI, Sato Y. Correction: Effects of Apex Size on Dissolution Profiles in the USP II Paddle Apparatus. AAPS PharmSciTech 2024; 25:48. [PMID: 38424376 DOI: 10.1208/s12249-024-02770-5] [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: 03/02/2024] Open
Affiliation(s)
- Hiroyuki Yoshida
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan.
| | - Tokio Morita
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Yasuhiro Abe
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Aoi Inagaki
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Naomi Tomita
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Ken-Ichi Izutsu
- Department of Pharmaceutical Sciences, International University of Health and Welfare, Tochigi, Japan
| | - Yoji Sato
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
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Mahmood U, Shukla-Dave A, Chan HP, Drukker K, Samala RK, Chen Q, Vergara D, Greenspan H, Petrick N, Sahiner B, Huo Z, Summers RM, Cha KH, Tourassi G, Deserno TM, Grizzard KT, Näppi JJ, Yoshida H, Regge D, Mazurchuk R, Suzuki K, Morra L, Huisman H, Armato SG, Hadjiiski L. Artificial intelligence in medicine: mitigating risks and maximizing benefits via quality assurance, quality control, and acceptance testing. BJR Artif Intell 2024; 1:ubae003. [PMID: 38476957 PMCID: PMC10928809 DOI: 10.1093/bjrai/ubae003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 03/14/2024]
Abstract
The adoption of artificial intelligence (AI) tools in medicine poses challenges to existing clinical workflows. This commentary discusses the necessity of context-specific quality assurance (QA), emphasizing the need for robust QA measures with quality control (QC) procedures that encompass (1) acceptance testing (AT) before clinical use, (2) continuous QC monitoring, and (3) adequate user training. The discussion also covers essential components of AT and QA, illustrated with real-world examples. We also highlight what we see as the shared responsibility of manufacturers or vendors, regulators, healthcare systems, medical physicists, and clinicians to enact appropriate testing and oversight to ensure a safe and equitable transformation of medicine through AI.
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Affiliation(s)
- Usman Mahmood
- Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, United States
| | - Amita Shukla-Dave
- Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, United States
- Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, United States
| | - Heang-Ping Chan
- Department of Radiology, University of Michigan, Ann Arbor, MI, 48109, United States
| | - Karen Drukker
- Department of Radiology, University of Chicago, Chicago, IL, 60637, United States
| | - Ravi K Samala
- Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, MD, 20993, United States
| | - Quan Chen
- Department of Radiation Oncology, Mayo Clinic Arizona, Phoenix, AZ, 85054, United States
| | - Daniel Vergara
- Department of Radiology, University of Washington, Seattle, WA, 98195, United States
| | - Hayit Greenspan
- Biomedical Engineering and Imaging Institute, Department of Radiology, Icahn School of Medicine at Mt Sinai, New York, NY, 10029, United States
| | - Nicholas Petrick
- Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, MD, 20993, United States
| | - Berkman Sahiner
- Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, MD, 20993, United States
| | - Zhimin Huo
- Tencent America, Palo Alto, CA, 94306, United States
| | - Ronald M Summers
- Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, MD, 20892, United States
| | - Kenny H Cha
- Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, MD, 20993, United States
| | - Georgia Tourassi
- Computing and Computational Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, United States
| | - Thomas M Deserno
- Peter L. Reichertz Institute for Medical Informatics, TU Braunschweig and Hannover Medical School, Braunschweig, Niedersachsen, 38106, Germany
| | - Kevin T Grizzard
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, 06510, United States
| | - Janne J Näppi
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, United States
| | - Hiroyuki Yoshida
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, United States
| | - Daniele Regge
- Radiology Unit, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, 10060, Italy
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, Pisa, 56126, Italy
| | - Richard Mazurchuk
- Division of Cancer Prevention, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, United States
| | - Kenji Suzuki
- Institute of Innovative Research, Tokyo Institute of Technology, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Lia Morra
- Department of Control and Computer Engineering, Politecnico di Torino, Torino, Piemonte, 10129, Italy
| | - Henkjan Huisman
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, Gelderland, 6525 GA, Netherlands
| | - Samuel G Armato
- Department of Radiology, University of Chicago, Chicago, IL, 60637, United States
| | - Lubomir Hadjiiski
- Department of Radiology, University of Michigan, Ann Arbor, MI, 48109, United States
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Yoshida H, Abe Y, Igeta K, Higuchi A, Kobashi J, Tomioka Y, Oka S. Transversely graded polarization volume gratings fabricated by freeform holographic photoalignment. Opt Lett 2024; 49:121-124. [PMID: 38134167 DOI: 10.1364/ol.506271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/24/2023] [Indexed: 12/24/2023]
Abstract
Polarization volume gratings (PVGs) based on chiral nematic liquid crystals offer a great potential as polarization-dependent holographic optical elements, but it is not easy to fabricate PVGs with varying pattern periods in the transverse plane. Here, we fabricate a PVG with an in-plane gradient of the pattern period by performing two-beam interference photoalignment on a flexible polyimide substrate. The pattern period varies depending on the local interference angle, which is controlled by the bent shape of the flexible substrate. We demonstrate fabrication of a PVG with a linearly graded sub-micrometer period, showing the potential of the proposed method to fabricate designer PVGs.
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7
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Morita T, Yoshida H, Abe Y, Tomita K, Nakamura A, Hada C, Nakai C, Kina K, Takahashi M, Uemura N, Yoneda T, Yasui M, Shintani Y, Tomita N, Inagaki A, Izutsu KI, Sato Y. Analysis of Factors Related to Variation in Dissolution Profiles Estimated from Continuously Conducted Dissolution Tests of Generic Products. Chem Pharm Bull (Tokyo) 2024; 72:28-35. [PMID: 38171902 DOI: 10.1248/cpb.c23-00647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The development of generic pharmaceuticals involves a bioequivalence study to ensure the therapeutic equivalence of the test formulation to the original innovative product. The formulation characteristics of generic products are expected to be maintained in the long term after approval. This study analyzed the factors contributing to the changes in the dissolution profiles of approved products during their life cycles. Cumulative data on the dissolution similarity of 1675 products of 127 ingredients tested by official laboratories in Japan were assessed according to Japanese bioequivalence guidelines with slight modifications. The products showing dissimilarities in dissolution profiles were analyzed for reporting year, therapeutic category, co-development, physical properties of the active pharmaceutical ingredient (API), and suspected reasons for dissolution change. The increase in the number of dissimilar products is related to the co-development of generic products. Although the solubility of the API was not associated with the dissolution change in the analysis of the total dissolution data, control of the API particle size is suggested to be important for drugs with poorly soluble APIs. Additionally, a risk factor for dissolution changes in the test solutions at a certain pH was the presence of acidic or basic residues. These results indicate the importance of proper development through a thorough evaluation of the formulation and process factors affecting the dissolution properties throughout the product lifecycle.
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Affiliation(s)
- Tokio Morita
- Division of Drugs, National Institute of Health Sciences
| | | | - Yasuhiro Abe
- Division of Drugs, National Institute of Health Sciences
| | - Koji Tomita
- Aichi Prefectural Institute of Public Health
| | | | | | - Chiyori Nakai
- Kyoto Prefectural Institute of Public Health and Environment
| | - Keishi Kina
- Saitama Prefectural Institute of Public Health
| | | | | | - Tetsuya Yoneda
- Toyama Prefectural Institute for Pharmaceutical Research
| | - Maki Yasui
- Hyogo Prefectural Institute of Public Health Science
| | | | - Naomi Tomita
- Division of Drugs, National Institute of Health Sciences
| | - Aoi Inagaki
- Division of Drugs, National Institute of Health Sciences
| | | | - Yoji Sato
- Division of Drugs, National Institute of Health Sciences
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8
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Yoshida H, Morita T, Abe Y, Inagaki A, Tomita N, Izutsu KI, Sato Y. Effects of Apex Size on Dissolution Profiles in the USP II Paddle Apparatus. AAPS PharmSciTech 2023; 25:9. [PMID: 38158516 DOI: 10.1208/s12249-023-02722-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024] Open
Abstract
The use of apex vessels may solve coning problems associated with dissolution testing. However, excessive dissolution acceleration can reduce the discriminatory power. This study aimed to clarify how different apex vessel sizes affect the dissolution behavior of cone-forming formulations. Five apex vessels with different heights, centralities, and compendial vessels were used. The paddle rotation speed at which the coning phenomenon resolved was measured using standard particles of different densities. Three model formulations-USP prednisone tablets, atorvastatin calcium hydrate tablets, and levofloxacin fine granules-were selected, and dissolution tests were conducted at 30-100 revolutions per minute (rpm). Compared to the compendial vessels, the disappearance of standard particles at the apex base at lower paddle speeds in apex vessels was observed. Standard particles tended to remain in the center of the apex vessels and disappear at rotational speeds comparable to those of the compendial vessels. Dissolution increased in an apex height-dependent manner in the model formulations, except for the atorvastatin calcium hydrate tablets at 50 rpm. For levofloxacin fine granules, dissolution was also improved by reducing the paddle agitation speed to 30 rpm in the compendial vessels. Differences in apex centrality by 3 mm did not affect the dissolution rate. Our results indicate that apex vessels with low apex heights have a mount-resolving effect, but the degree of dissolution improvement by avoiding the coning phenomenon depends on the formulation characteristics used in the dissolution tests.
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Affiliation(s)
- Hiroyuki Yoshida
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan.
| | - Tokio Morita
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Yasuhiro Abe
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Aoi Inagaki
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Naomi Tomita
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Ken-Ichi Izutsu
- Department of Pharmaceutical Sciences, International University of Health and Welfare, Tochigi, Japan
| | - Yoji Sato
- Division of Drugs, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
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9
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Sugie A, Nakano K, Tajima K, Osaka I, Yoshida H. Dependence of Exciton Binding Energy on Bandgap of Organic Semiconductors. J Phys Chem Lett 2023; 14:11412-11420. [PMID: 38081594 PMCID: PMC10749482 DOI: 10.1021/acs.jpclett.3c02863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 12/22/2023]
Abstract
Strongly bound excitons crucially affect the operation of organic optoelectronic devices. Nevertheless, precise experimental data on the exciton binding energy of organic semiconductors are lacking. In this study, we determine the exciton binding energy as the difference between the optical and transport bandgaps with a precision of 0.1 eV. In particular, electron affinities with a precision higher than 0.05 eV determined by low-energy inverse photoelectron spectroscopy allow us to determine the transport gap and the exciton binding energies with such high precision. Through a systematic comparison of a wide range of organic semiconductors, including 42 organic solar cell materials (15 nonfullerene acceptors, 4 fullerene acceptors, 13 low-bandgap polymers, 7 organic light-emitting diode materials, and 3 crystalline materials), we found that the exciton binding energy is one-quarter of the transport gap regardless of the materials. We interpret this unexpected relation from a hydrogen atom-like model, i.e., the quantized energy levels in a Coulomb potential between the positive and the negative charges.
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Affiliation(s)
- Ai Sugie
- Graduate
School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Kyohei Nakano
- RIKEN
Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Keisuke Tajima
- RIKEN
Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Itaru Osaka
- Applied
Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Hiroyuki Yoshida
- Graduate
School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular
Chirality Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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Onuki M, Takahashi F, Iwata T, Nakazawa H, Yahata H, Kanao H, Horie K, Konnai K, Nio A, Takehara K, Kamiura S, Tsuda N, Takei Y, Shigeta S, Matsumura N, Yoshida H, Motohara T, Yamazaki H, Nakamura K, Hamanishi J, Tasaka N, Ishikawa M, Hirashima Y, Kudaka W, Mori‐Uchino M, Kukimoto I, Fujii T, Watanabe Y, Noda K, Yoshikawa H, Yaegashi N, Matsumoto K. Human papillomavirus vaccine impact on invasive cervical cancer in Japan: Preliminary results from cancer statistics and the MINT study. Cancer Sci 2023; 114:4426-4432. [PMID: 37688310 PMCID: PMC10637081 DOI: 10.1111/cas.15943] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/19/2023] [Accepted: 07/27/2023] [Indexed: 09/10/2023] Open
Abstract
The first prophylactic vaccine against human papillomavirus (HPV) 16 and HPV18 was licensed in Japan in 2009. HPV vaccine effectiveness against high-grade cervical lesions has been demonstrated among young Japanese women, but evidence of its effects on invasive cervical cancer (ICC) is lacking. Using data from two different cancer registries, we compared recent trends of new ICC cases by age group using Poisson regression analysis. We also analyzed time trends in HPV16/18 prevalence among 1414 Japanese women aged <40 years newly diagnosed with ICC in the past decade. Based on the population-based cancer registry, the incidence of ICC among young women aged 20-29 years showed a significant decline from 3.6 to 2.8 per 100 000 women-years during 2016-2019, but no similar decline was observed for older age groups (p < 0.01). Similarly, using data from the gynecological cancer registry of the Japan Society of Obstetrics and Gynecology, the annual number of ICCs among women aged 20-29 years also decreased from 256 cases to 135 cases during 2011-2020 (p < 0.0001). Furthermore, a declining trend in HPV16/18 prevalence in ICC was observed only among women aged 20-29 years during 2017-2022 (90.5%-64.7%, p = 0.05; Cochran-Armitage trend test). This is the first report to suggest population-level effects of HPV vaccination on ICC in Japan. Although the declining trend in HPV16/18 prevalence among young women with ICC supports a causal linkage between vaccination and results from cancer registries, further studies are warranted to confirm that our findings are attributable to vaccination.
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Affiliation(s)
- Mamiko Onuki
- Department of Obstetrics and GynecologyShowa University School of MedicineTokyoJapan
| | - Fumiaki Takahashi
- Division of Medical Engineering, Department of Information ScienceIwate Medical UniversityYahabaJapan
| | - Takashi Iwata
- Department of Obstetrics and GynecologyKeio University School of MedicineTokyoJapan
| | - Hiroshi Nakazawa
- Department of Gynecologic OncologyHyogo Cancer CenterAkashiJapan
| | - Hideaki Yahata
- Department of Obstetrics and Gynecology, Graduate School of Medical ScienceKyushu UniversityFukuokaJapan
| | - Hiroyuki Kanao
- Department of GynecologyCancer Institute HospitalTokyoJapan
| | - Koji Horie
- Department of GynecologySaitama Cancer CenterSaitamaJapan
| | | | - Ai Nio
- Gynecology ServiceNational Hospital Organization Kyushu Cancer CenterFukuokaJapan
| | - Kazuhiro Takehara
- Department of Gynecologic OncologyNational Hospital Organization Shikoku Cancer CenterMatsuyamaJapan
| | - Shoji Kamiura
- Department of GynecologyOsaka International Cancer InstituteOsakaJapan
| | - Naotake Tsuda
- Department of Obstetrics and GynecologyKurume University School of MedicineKurumeJapan
| | - Yuji Takei
- Department of Obstetrics and GynecologyJichi Medical UniversityTochigiJapan
| | - Shogo Shigeta
- Department of Obstetrics and GynecologyTohoku University Graduate School of MedicineSendaiJapan
| | - Noriomi Matsumura
- Department of Obstetrics and GynecologyKindai University Faculty of MedicineOsakaJapan
| | - Hiroyuki Yoshida
- Department of Gynecologic OncologySaitama Medical University International Medical CenterSaitamaJapan
| | - Takeshi Motohara
- Department of Obstetrics and Gynecology, Faculty of Life SciencesKumamoto UniversityKumamotoJapan
| | - Hiroyuki Yamazaki
- Department of Obstetrics and GynecologyHokkaido University Graduate School of Medicine and Faculty of MedicineSapporoJapan
| | - Keiichiro Nakamura
- Department of Obstetrics and GynecologyOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan
| | - Junzo Hamanishi
- Department of Gynecology and ObstetricsKyoto University Graduate School of MedicineKyotoJapan
| | - Nobutaka Tasaka
- Department of Obstetrics and Gynecology, Faculty of MedicineUniversity of TsukubaTsukubaJapan
| | - Mitsuya Ishikawa
- Department of GynecologyNational Cancer Center HospitalTokyoJapan
| | | | - Wataru Kudaka
- Department of Obstetrics and Gynecology, Graduate School of MedicineUniversity of the RyukyusOkinawaJapan
| | - Mayuyo Mori‐Uchino
- Department of Obstetrics and Gynecology, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Iwao Kukimoto
- Pathogen Genomics CenterNational Institute of Infectious DiseasesTokyoJapan
| | - Takuma Fujii
- Department of Gynecology, School of MedicineFujita Health UniversityAichiJapan
| | - Yoh Watanabe
- Division of Obstetrics and GynecologyTohoku Medical and Pharmaceutical University Graduate School of MedicineSendaiJapan
| | | | - Hiroyuki Yoshikawa
- Department of Obstetrics and Gynecology, Faculty of MedicineUniversity of TsukubaTsukubaJapan
| | - Nobuo Yaegashi
- Department of Obstetrics and GynecologyTohoku University Graduate School of MedicineSendaiJapan
| | - Koji Matsumoto
- Department of Obstetrics and GynecologyShowa University School of MedicineTokyoJapan
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Tada M, Matano H, Azuma H, Kano KI, Maeda S, Fujino S, Yamada N, Uzui H, Tada H, Maeno K, Shimada Y, Yoshida H, Ando M, Ichihashi T, Murakami Y, Homma Y, Funakoshi H, Obunai K, Matsushima A, Ohte N, Takeuchi A, Takada Y, Matsukubo S, Ando H, Furukawa Y, Kuriyama A, Fujisawa T, Chapman AR, Mills NL, Hayashi H, Watanabe N, Furukawa TA. Comprehensive validation of early diagnostic algorithms for myocardial infarction in the emergency department. QJM 2023:hcad242. [PMID: 37878823 DOI: 10.1093/qjmed/hcad242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/08/2023] [Indexed: 10/27/2023] Open
Abstract
OBJECTIVE To comprehensively evaluate diagnostic algorithms for myocardial infarction using a high-sensitivity cardiac troponin I (hs-cTnI) assay. PATIENTS AND METHODS We prospectively enrolled patients with suspected myocardial infarction without ST-segment elevation from nine emergency departments in Japan. The diagnostic algorithms evaluated a) based on hs-cTnI alone, such as the European Society of Cardiology (ESC) 0/1-h or 0/2-h and High-STEACS pathways; or b) used medical history and physical findings, such as the ADAPT, EDACS, HEART, and GRACE pathways. We evaluated the negative predictive value (NPV), sensitivity as safety measures, and proportion of patients classified as low or high-risk as an efficiency measure for a primary outcome of type 1 myocardial infarction or cardiac death within 30 days. RESULTS We included 437 patients, and the hs-cTnI was collected at 0 and 1 hours in 407 patients and at 0 and 2 hours in 394. The primary outcome occurred in 8.1% (33/407) and 6.9% (27/394) of patients, respectively. All the algorithms classified low-risk patients without missing those with the primary outcome, except for the GRACE pathway. The hs-cTnI-based algorithms classified more patients as low-risk: the ESC 0/1-h 45.7%; the ESC 0/2-h 50.5%; the High-STEACS pathway 68.5%, than those using history and physical findings (15-30%). The High-STEACS pathway ruled out more patients (20.5%) by hs-cTnI measurement at 0 hours than the ESC 0/1-h and 0/2-h algorithms (7.4%). CONCLUSIONS The hs-cTnI algorithms, especially the High-STEACS pathway, had excellent safety performance for the early diagnosis of myocardial infarction and offered the greatest improvement in efficiency.
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Affiliation(s)
- Masafumi Tada
- Department of Emergency Medicine, Neurology, Nagoya City University East Medical Center, Aichi, Japan
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
| | - Hideyuki Matano
- Department of Emergency Medicine, Fukui-ken Saiseikai Hospital, Fukui, Japan
| | - Hiroyuki Azuma
- Department of Emergency Medicine, Fukui Prefectural Hospital, Fukui, Japan
| | - Ken-Ichi Kano
- Department of Emergency Medicine, Fukui Prefectural Hospital, Fukui, Japan
| | - Shigenobu Maeda
- Department of Emergency Medicine, Fukui Prefectural Hospital, Fukui, Japan
| | - Susumu Fujino
- Department of Cardiology, Vascular Center, Fukui Prefectural Hospital, Fukui, Japan
| | - Naoki Yamada
- Department of Emergency Medicine, University of Fukui, Fukui, Japan
| | - Hiroyasu Uzui
- Department of Cardiovascular Medicine, University of Fukui, Fukui, Japan
| | - Hiroshi Tada
- Department of Cardiovascular Medicine, University of Fukui, Fukui, Japan
| | - Koji Maeno
- Department of Cardiology, Fukui-ken Saiseikai Hospital, Fukui, Japan
| | - Yoshimitsu Shimada
- Department of Emergency Medicine, Japanese Red Cross Fukui Hospital, Fukui, Japan
| | - Hiroyuki Yoshida
- Department of Cardiology, Japanese Red Cross Fukui Hospital, Fukui, Japan
| | - Masaki Ando
- Department of Emergency and Critical Care Medicine, Kariya Toyota General Hospital, Aichi, Japan
| | - Taku Ichihashi
- Department of Cardiology, Nagoya City University East Medical Center, Aichi, Japan
| | - Yoshimasa Murakami
- Department of Cardiology, Nagoya City University East Medical Center, Aichi, Japan
| | - Yosuke Homma
- Department of Emergency Medicine, Chiba Kaihin Municipal Hospital, Chiba, Japan
| | - Hiraku Funakoshi
- Department of Emergency and Critical Care Medicine, Tokyo bay Urayasu Ichikawa Medical Center, Chiba, Japan
| | - Kotaro Obunai
- Department of Cardiology, Tokyo Bay Urayasu Ichikawa Medical Center, Chiba, Japan
| | - Asako Matsushima
- Department of Emergency Medicine and Critical care, Nagoya City University Graduate School of Medical Sciences, Aichi, Japan
| | - Nobuyuki Ohte
- Department of Cardiology, Nagoya City University Graduate School of Medicine, Aichi, Japan
| | - Akinori Takeuchi
- Department of Emergency Medicine, Konan Kosei Hospital, Aichi, Japan
| | - Yasunobu Takada
- Department of Cardiology, Konan Kosei Hospital, Aichi, Japan
| | - Shohei Matsukubo
- Department of Emergency Medicine and General Internal Medicine, Social Medical Corporation Kyouryoukai Ichinomiya Nishi Hospital, Aichi, Japan
| | - Hirotaka Ando
- Department of Emergency Medicine and General Internal Medicine, Social Medical Corporation Kyouryoukai Ichinomiya Nishi Hospital, Aichi, Japan
| | - Yoshio Furukawa
- Department of Cardiology, Social Medical Corporation Kyouryoukai Ichinomiya Nishi Hospital, Aichi, Japan
| | - Akira Kuriyama
- Department of Primary Care and Emergency Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeshi Fujisawa
- British Heart Foundation Center for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Andrew R Chapman
- British Heart Foundation Center for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Nicholas L Mills
- British Heart Foundation Center for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Hiroyuki Hayashi
- Department of Emergency Medicine, University of Fukui, Fukui, Japan
| | - Norio Watanabe
- Department of Psychiatry, Soseikai General Hospital, Kyoto, Japan
| | - Toshi A Furukawa
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
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12
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Nakamura T, Nishikawa Y, Shiokawa M, Takeda H, Yokode M, Matsumoto S, Muramoto Y, Ota S, Yoshida H, Okada H, Kuwada T, Marui S, Matsumori T, Maruno T, Uza N, Kodama Y, Hatano E, Seno H. ELF3 suppresses gallbladder cancer development through downregulation of the EREG/EGFR/mTOR complex 1 signalling pathway. J Pathol 2023; 261:28-42. [PMID: 37345534 DOI: 10.1002/path.6144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/01/2023] [Accepted: 05/16/2023] [Indexed: 06/23/2023]
Abstract
The prognosis of gallbladder cancer (GBC) remains poor, and a better understanding of GBC molecular mechanisms is important. Genome sequencing of human GBC has demonstrated that loss-of-function mutations of E74-like ETS transcription factor 3 (ELF3) are frequently observed, with ELF3 considered to be a tumour suppressor in GBC. To clarify the underlying molecular mechanisms by which ELF3 suppresses GBC development, we performed in vivo analysis using a combination of autochthonous and allograft mouse models. We first evaluated the clinical significance of ELF3 expression in human GBC tissues and found that low ELF3 expression was associated with advanced clinical stage and deep tumour invasion. For in vivo analysis, we generated Pdx1-Cre; KrasG12D ; Trp53R172H ; Elf3f/f (KPCE) mice and Pdx1-Cre; KrasG12D ; Trp53R172H ; Elf3wt/wt (KPC) mice as a control and analysed their gallbladders histologically. KPCE mice developed larger papillary lesions in the gallbladder than those developed by KPC mice. Organoids established from the gallbladders of KPCE and KPC mice were analysed in vitro. RNA sequencing showed upregulated expression of epiregulin (Ereg) in KPCE organoids, and western blotting revealed that EGFR/mechanical targets of rapamycin complex 1 (mTORC1) were upregulated in KPCE organoids. In addition, ChIP assays on Elf3-overexpressing KPCE organoids showed that ELF3 directly regulated Ereg. Ereg deletion in KPCE organoids (using CRISPR/Cas9) induced EGFR/mTORC1 downregulation, indicating that ELF3 controlled EGFR/mTORC1 activity through regulation of Ereg expression. We also generated allograft mouse models using KPCE and KPC organoids and found that KPCE organoid allograft tumours exhibited poorly differentiated structures with mTORC1 upregulation and mesenchymal phenotype, which were suppressed by Ereg deletion. Furthermore, EGFR/mTORC1 inhibition suppressed cell proliferation and epithelial-mesenchymal transition in KPCE organoids. Our results suggest that ELF3 suppresses GBC development via downregulation of EREG/EGFR/mTORC1 signalling. EGFR/mTORC1 inhibition is a potential therapeutic option for GBC with ELF3 mutation. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Takeharu Nakamura
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshihiro Nishikawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masahiro Shiokawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Haruhiko Takeda
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masataka Yokode
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shimpei Matsumoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuya Muramoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sakiko Ota
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroyuki Yoshida
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirokazu Okada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeshi Kuwada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Saiko Marui
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoaki Matsumori
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takahisa Maruno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Norimitsu Uza
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuzo Kodama
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Etsuro Hatano
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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13
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Rezaei M, Näppi JJ, Bischl B, Yoshida H. Bayesian uncertainty estimation for detection of long-tailed and unseen conditions in medical images. J Med Imaging (Bellingham) 2023; 10:054501. [PMID: 37818179 PMCID: PMC10560997 DOI: 10.1117/1.jmi.10.5.054501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/12/2023] Open
Abstract
Purpose Deep supervised learning provides an effective approach for developing robust models for various computer-aided diagnosis tasks. However, there is often an underlying assumption that the frequencies of the samples between the different classes of the training dataset are either similar or balanced. In real-world medical data, the samples of positive classes often occur too infrequently to satisfy this assumption. Thus, there is an unmet need for deep-learning systems that can automatically identify and adapt to the real-world conditions of imbalanced data. Approach We propose a deep Bayesian ensemble learning framework to address the representation learning problem of long-tailed and out-of-distribution (OOD) samples when training from medical images. By estimating the relative uncertainties of the input data, our framework can adapt to imbalanced data for learning generalizable classifiers. We trained and tested our framework on four public medical imaging datasets with various imbalance ratios and imaging modalities across three different learning tasks: semantic medical image segmentation, OOD detection, and in-domain generalization. We compared the performance of our framework with those of state-of-the-art comparator methods. Results Our proposed framework outperformed the comparator models significantly across all performance metrics (pairwise t -test: p < 0.01 ) in the semantic segmentation of high-resolution CT and MR images as well as in the detection of OOD samples (p < 0.01 ), thereby showing significant improvement in handling the associated long-tailed data distribution. The results of the in-domain generalization also indicated that our framework can enhance the prediction of retinal glaucoma, contributing to clinical decision-making processes. Conclusions Training of the proposed deep Bayesian ensemble learning framework with dynamic Monte-Carlo dropout and a combination of losses yielded the best generalization to unseen samples from imbalanced medical imaging datasets across different learning tasks.
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Affiliation(s)
- Mina Rezaei
- LMU Munich, Department of Statistics, Munich, Germany
- Munich Center for Machine Learning, Munich, Germany
| | - Janne J. Näppi
- Massachusetts General Hospital, Harvard Medical School, 3D Imaging Research, Department of Radiology, Boston, Massachusetts, United States
| | - Bernd Bischl
- LMU Munich, Department of Statistics, Munich, Germany
- Munich Center for Machine Learning, Munich, Germany
| | - Hiroyuki Yoshida
- Massachusetts General Hospital, Harvard Medical School, 3D Imaging Research, Department of Radiology, Boston, Massachusetts, United States
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14
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Guan S, Cheng Y, Hao L, Yoshida H, Tarashima C, Zhan T, Itoi T, Qiu T, Lu Y. Oxygen vacancies induced band gap narrowing for efficient visible-light response in carbon-doped TiO 2. Sci Rep 2023; 13:14105. [PMID: 37644040 PMCID: PMC10465500 DOI: 10.1038/s41598-023-39523-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/26/2023] [Indexed: 08/31/2023] Open
Abstract
The band gap of rutile TiO2 has been narrowed, via the formation of oxygen vacancies (OVs) during heat treatment in carbon powder (cHT) with embedding TiO2 coatings. The narrowed band gap efficiently improves the visible light response of TiO2 coatings, to further enhance the visible-light-driven photocatalytic activity. The change in OVs during cHT has been studied by manipulation of cHT temperature and time. The effect of OVs on the band structure of nonstoichiometric TiO2-x has been further calculated by first-principles calculations. With raising the temperature, SEM images show that the nano-size fiber-like structure forms on the surface of TiO2 coatings, and the amount of the fiber-like structure significantly increases and their size changes from nano to micro under 800 °C, contributing to cause an increase in accessible surface area. The UV-Vis results reveal that the band gap of TiO2 has been narrowed during cHT, due to the formed oxygen vacancies. The XPS results further confirm that the formation of surface defects including OVs, and the XPS depth profile further shows the decreased relative amount of O whereas increased relative amount of carbon. Notably, after cHT for TiO2 coatings, the photocatalytic activity first increases then decreases with raising the temperature, achieving approximately 3 times at 850 °C. The first-principles calculation suggest that the OVs in TiO2 coatings with localized electrons could facilitate the band gap narrowing, further favoring to enhance the photocatalytic activity under visible light.
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Affiliation(s)
- Sujun Guan
- Research Center for Space System Innovation, Tokyo University of Science, Chiba, Japan
| | - Yanling Cheng
- Beijing Key Laboratory of Biomass Waste Resource Utilization, Beijing Union University, Beijing, China.
| | - Liang Hao
- College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin, China
| | | | - Chiaki Tarashima
- Research Center for Space System Innovation, Tokyo University of Science, Chiba, Japan
| | - Tianzhuo Zhan
- Bio-Nano Electronics Research Centre, Toyo University, Saitama, Japan
| | - Takaomi Itoi
- Graduate School and Faculty of Engineering, Chiba University, Chiba, Japan
| | - Tangbin Qiu
- Graduate School and Faculty of Engineering, Chiba University, Chiba, Japan
| | - Yun Lu
- Graduate School and Faculty of Engineering, Chiba University, Chiba, Japan.
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15
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Yoshida H, Shiokawa M, Kuwada T, Muramoto Y, Ota S, Nishikawa Y, Maeda H, Kakiuchi N, Okamoto K, Yamazaki H, Yokode M, Nakamura T, Matsumoto S, Hirano T, Okada H, Marui S, Sogabe Y, Matsumori T, Mima A, Uza N, Eso Y, Takai A, Takahashi K, Ueda Y, Kodama Y, Chiba T, Seno H. Anti-integrin αvβ6 autoantibodies in patients with primary sclerosing cholangitis. J Gastroenterol 2023; 58:778-789. [PMID: 37310456 PMCID: PMC10366314 DOI: 10.1007/s00535-023-02006-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 05/31/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Patients with primary sclerosing cholangitis (PSC) possess autoantibodies against biliary epithelial cells. However, the target molecules remain unknown. METHODS The sera of patients with PSC and controls were subjected to enzyme-linked immunosorbent assays to detect autoantibodies using recombinant integrin proteins. Integrin αvβ6 expression in the bile duct tissues was examined using immunofluorescence. The blocking activity of the autoantibodies was examined using solid-phase binding assays. RESULTS Anti-integrin αvβ6 antibodies were detected in 49/55 (89.1%) patients with PSC and 5/150 (3.3%) controls (P < 0.001), with a sensitivity and specificity of 89.1% and 96.7%, respectively, for PSC diagnosis. When focusing on the presence or absence of IBD, the proportion of the positive antibodies in PSC with IBD was 97.2% (35/36) and that in PSC alone was 73.7% (14/19) (P = 0.008). Integrin αvβ6 was expressed in bile duct epithelial cells. Immunoglobulin (Ig)G from 15/33 patients with PSC blocked integrin αvβ6-fibronectin binding through an RGD (Arg-Gly-Asp) tripeptide motif. CONCLUSIONS Autoantibodies against integrin αvβ6 were detected in most patients with PSC; anti-integrin αvβ6 antibody may serve as a potential diagnostic biomarker for PSC.
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Affiliation(s)
- Hiroyuki Yoshida
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masahiro Shiokawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Takeshi Kuwada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuya Muramoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sakiko Ota
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshihiro Nishikawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirona Maeda
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Nobuyuki Kakiuchi
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Kanako Okamoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hajime Yamazaki
- Section of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masataka Yokode
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeharu Nakamura
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shimpei Matsumoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomonori Hirano
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirokazu Okada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Saiko Marui
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuko Sogabe
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoaki Matsumori
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Atsushi Mima
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Norimitsu Uza
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuji Eso
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Atsushi Takai
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ken Takahashi
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshihide Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Tsutomu Chiba
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Kansai Electric Power Hospital, Osaka, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Izutsu KI, Ando D, Morita T, Abe Y, Yoshida H. Generic Drug Shortage in Japan: GMP Noncompliance and Associated Quality Issues. J Pharm Sci 2023; 112:1763-1771. [PMID: 36965844 DOI: 10.1016/j.xphs.2023.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/08/2023] [Accepted: 03/08/2023] [Indexed: 03/27/2023]
Abstract
Government campaigns to replace off-patent brand pharmaceuticals with low cost generic products in national health insurance systems have apparently increased their production in the last two decades in Japan. The contamination of a batch of generic itraconazole tablets with the sleep inducer rilmazafone caused significant adverse events and related accidents in 2020, amidst increasing use of the generic products in healthcare. Investigations revealed many Good Manufacturing Practice (GMP) violations and other evidence of poor quality management in the manufacturing/marketing authorization holder (MAH). Urgent inspection of other MAHs found multiple cases of GMP noncompliance that resulted in temporary administrative suspension. Various quality issues, including nonconformity in stability monitoring, in these generic MAHs resulted in prolonged suspension of product shipments and shortages in medical institutions. These problems highlighted long-standing issues in quality management by MAHs and inspections by authorities, which had been neglected during rapid production expansion. This review introduces these manufacturing control and management problems and their countermeasures, and discusses the impact of habitual inadequate development processes that disregard the quality-by-design (QbD) perspective as the root cause of the issues.
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Affiliation(s)
- Ken-Ichi Izutsu
- Division of Drugs, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan.
| | - Daisuke Ando
- Division of Drugs, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Tokio Morita
- Division of Drugs, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Yasuhiro Abe
- Division of Drugs, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Hiroyuki Yoshida
- Division of Drugs, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
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Matsumori T, Uza N, Okada H, Shiokawa M, Maruno T, Kuwada T, Yoshida H, Yasuda M, Yamazaki H, Taura K, Hatano E, Kodama Y, Seno H. Innovative method for the diagnosis of bile duct lesions using a novel tapered-tip sheath system to facilitate biliary biopsies. Gastrointest Endosc 2023; 98:43-50.e1. [PMID: 36775209 DOI: 10.1016/j.gie.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 01/26/2023] [Accepted: 02/06/2023] [Indexed: 02/14/2023]
Abstract
BACKGROUND AND AIMS Pathologic evaluation of bile duct lesions is crucial for a definitive diagnosis and determination of an appropriate therapeutic strategy; however, current methods are limited by several challenges. This study evaluated the impact of a novel tapered-tip sheath system on biliary stricture diagnosis. METHODS This observational study evaluated 47 consecutive patients who underwent transpapillary biliary stricture biopsy using the novel tapered-tip sheath system from July 2020 to March 2022 compared with 51 historical control subjects undergoing conventional biopsies. Technical success rate, total biopsy time, number of biopsy specimens, adequate tissue sampling rate, adverse events, and diagnostic performance for biliary strictures were assessed. RESULTS The technical success rate was favorable in both groups, showing no significant difference (97.9% [46 of 47] vs 88.2% [45 of 51], P = .114). However, the total biopsy time was significantly shorter in the novel system group (3.7 vs 7.7 minutes, P < .001). The number of biopsy specimens did not differ between the groups; however, the novel system group had significantly more cases in which ≥3 tissue samples could be obtained (71.7% [33 of 46] vs 51.1% [23 of 45], P = .043), a higher adequate tissue sampling rate (88.2% vs 66.4%, P < .001), and fewer adverse events (6.4% vs 21.6%, P = .043). Although the diagnostic specificity of both groups was 100%, the novel system group had significantly higher diagnostic sensitivity and accuracy (82.1% vs 50% [P = .004] and 84.8% vs 55.5% [P = .005], respectively). CONCLUSIONS The novel tapered-tip sheath system is a promising tool for biliary stricture diagnosis.
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Affiliation(s)
- Tomoaki Matsumori
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Norimitsu Uza
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Hirokazu Okada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masahiro Shiokawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takahisa Maruno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeshi Kuwada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroyuki Yoshida
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Muneji Yasuda
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hajime Yamazaki
- Section of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kojiro Taura
- Department of Gastroenterological Surgery, Kitano Hospital, Tazuke Kofukai Medical Research Institute, Osaka, Japan
| | - Etsuro Hatano
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yuzo Kodama
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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18
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Kashimoto Y, Ideta S, Sato H, Orio H, Kawamura K, Yoshida H. High-energy-resolution angle-resolved inverse-photoelectron spectroscopy apparatus for damage-free measurements of conduction band structures of functional materials. Rev Sci Instrum 2023; 94:063903. [PMID: 37862500 DOI: 10.1063/5.0138204] [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: 12/09/2022] [Accepted: 05/18/2023] [Indexed: 10/22/2023]
Abstract
The energy band structure of the conduction band (energy-momentum relation of electrons) is crucial to understanding the electron transport of crystalline materials. In this paper, we describe an angle-resolved low-energy inverse photoelectron spectroscopy (AR-LEIPS) apparatus that examines the conduction band structures of materials sensitive to the electron beam, such as organic semiconductors and organic-inorganic hybrid perovskites. The principle of this apparatus is based on AR inverse photoelectron spectroscopy. To minimize radiation damage and improve energy resolution, we employed our previous approach used in LEIPS [H. Yoshida, Chem. Phys. Lett. 539-540, 180 (2012)]. We obtained an overall energy resolution of 0.23 eV with a momentum resolution of 0.9 nm-1 at the electron kinetic energy of 2 eV or higher.
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Affiliation(s)
- Yuki Kashimoto
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Satoshi Ideta
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Haruki Sato
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hibiki Orio
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Keita Kawamura
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hiroyuki Yoshida
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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19
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Ray-Coquard I, Leary A, Pignata S, Cropet C, González-Martin A, Marth C, Nagao S, Vergote I, Colombo N, Mäenpää J, Selle F, Sehouli J, Lorusso D, Alia EMG, Bogner G, Yoshida H, Lefeuvre-Plesse C, Buderath P, Mosconi AM, Lortholary A, Burges A, Medioni J, El-Balat A, Rodrigues M, Park-Simon TW, Dubot C, Denschlag D, You B, Pujade-Lauraine E, Harter P. Olaparib plus bevacizumab first-line maintenance in ovarian cancer: final overall survival results from the PAOLA-1/ENGOT-ov25 trial. Ann Oncol 2023:S0923-7534(23)00686-5. [PMID: 37211045 DOI: 10.1016/j.annonc.2023.05.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 05/23/2023] Open
Abstract
BACKGROUND In the PAOLA-1/ENGOT-ov25 primary analysis, maintenance olaparib plus bevacizumab demonstrated a significant progression-free survival (PFS) benefit in newly diagnosed advanced ovarian cancer patients in clinical response after first-line platinum-based chemotherapy plus bevacizumab, irrespective of surgical status. Prespecified, exploratory analyses by molecular biomarker status showed substantial benefit in patients with a BRCA1/BRCA2 mutation (BRCAm) or homologous recombination deficiency (HRD; BRCAm and/or genomic instability). We report the prespecified final overall survival (OS) analysis, including analyses by HRD status. PATIENTS AND METHODS Patients were randomized 2:1 to olaparib (300 mg bid; up to 24 months) plus bevacizumab (15 mg/kg q3w; 15 months total) or placebo plus bevacizumab. Analysis of OS, a key secondary endpoint in hierarchical testing, was planned for ∼60% maturity or 3 years after the primary analysis. RESULTS After median follow-up of 61.7 and 61.9 months in the olaparib and placebo arms, respectively, median OS was 56.5 versus 51.6 months in the ITT (hazard ratio [HR]=0.92, 95% CI 0.76-1.12; P=0.4118). Subsequent poly(ADP-ribose) polymerase (PARP) inhibitor therapy was received by 105 (19.6%) olaparib patients versus 123 (45.7%) placebo patients. In the HRD-positive population, OS was longer with olaparib plus bevacizumab (HR=0.62, 95% CI 0.45-0.85; 5-year OS rate, 65.5% versus 48.4%); at 5 years, updated PFS also showed a higher proportion of olaparib plus bevacizumab patients without relapse (HR=0.41, 95% CI 0.32-0.54; 5-year PFS rate, 46.1% versus 19.2%). Myelodysplastic syndrome, acute myeloid leukemia, aplastic anemia, and new primary malignancy incidence remained low and balanced between arms. CONCLUSIONS Olaparib plus bevacizumab provided clinically meaningful OS improvement for first-line patients with HRD-positive ovarian cancer. These prespecified exploratory analyses demonstrated improvement despite a high proportion of patients in the placebo arm receiving PARP inhibitors post-progression, confirming the combination as one of the standards of care in this setting with the potential to enhance cure.
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Affiliation(s)
- I Ray-Coquard
- Department of Medical Oncology, Centre Léon BERARD, Lyon, and GINECO, France;.
| | - A Leary
- Gynecological Cancer Unit, Department of Medicine, Institut Gustave Roussy, Villejuif, and GINECO, France
| | - S Pignata
- Department of Urology and Gynecology, Istituto Nazionale Tumori 'Fondazione G Pascale', IRCCS, Napoli, and MITO, Italy
| | - C Cropet
- Department of Biostatistics Centre Léon BERARD, Lyon, and GINECO, France
| | - A González-Martin
- Department of Medical Oncology, Clínica Universidad de Navarra, Program in Solid Tumors (CIMA), Pamplona, and GEICO, Spain
| | - C Marth
- Department of Obstetrics and Gynecology, Medical University Innsbruck, Innsbruck, and AGO Austria, Austria
| | - S Nagao
- Department of Gynecologic Oncology, Hyogo Cancer Center, Akashi, and GOTIC, Japan
| | - I Vergote
- Department of Obstetrics and Gynaecology, University Hospital Leuven, Leuven Cancer Institute, Leuven, and BGOG, Belgium, European Union
| | - N Colombo
- University of Milan-Bicocca and Istituto Europeo di Oncologia IRCCS Milan, and MANGO, Italy
| | - J Mäenpää
- Department of Obstetrics and Gynecology and Cancer Center, Tampere University and University Hospital, Tampere, and NSGO, Finland
| | - F Selle
- Department of Medical Oncology, Groupe Hospitalier Diaconesses Croix Saint-Simon, Paris, and GINECO, France
| | - J Sehouli
- Charité - Department of Gynecology with Center of Oncological Surgery, Universitätsmedizin Berlin, Berlin, and AGO, Germany
| | - D Lorusso
- (3)Gynecologic Oncology Unit, Catholic University of Sacred Heart and Fondazione Policlinico Gemelli IRCCS, Rome, and MITO, Italy
| | - E M Guerra Alia
- Medical Oncology Department, Hospital Universitario Ramón y Cajal, Madrid, and GEICO, Spain
| | - G Bogner
- Department of Obstetrics and Gynecology, Paracelsus Medical University Salzburg, Salzburg, and AGO Austria, Austria
| | - H Yoshida
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Saitama, and GOTIC, Japan
| | - C Lefeuvre-Plesse
- Department of Medical Oncology, Centre Eugène Marquis, Rennes, and GINECO, France
| | - P Buderath
- Universitätsklinikum Essen, University Hospital Essen, West German Cancer Center, Department of Gynecology and Obstetrics, Essen and AGO, Germany
| | - A M Mosconi
- S.C. di Oncologia Medica Osp. S. Maria della Misericordia - AO di Perugia, and MITO, Italy
| | - A Lortholary
- Centre Catherine de Sienne Hopital privé du Confluent, Nantes, and GINECO, France
| | - A Burges
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Munich, and AGO, Germany
| | - J Medioni
- Hôpital Européen Georges Pompidou, Universite de Paris Cite, Paris, and GINECO, France
| | - A El-Balat
- Spital Uster, Frauenklinik, Uster, Switzerland, and Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt, and AGO, Germany
| | - M Rodrigues
- Department of Medical Oncology, Institut Curie, Hopital Claudius Régaud, PSL Research University, Paris, France, and GINECO, France
| | - T-W Park-Simon
- Department of Gynaecology and Obstetrics, Hannover Medical School, Hannover, and AGO, Germany
| | - C Dubot
- Oncologie Médicale, Institut Curie, Hôpital René Huguenin, Saint Cloud, Paris, and GINECO, France
| | - D Denschlag
- Hochtaunuskliniken, Bad Homburg, and AGO, Germany
| | - B You
- HCL - Hospices Civils de Lyon IC-HCL, CITOHL, Université Claude Bernard Lyon 1, CICLY,Lyon, and GINECO, France
| | | | - P Harter
- Department of Gynaecology & Gynaecologic Oncology, Ev. Kliniken Essen-Mitte, Essen, and AGO, Germany
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20
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Yoshida H, Fujiwara K. Adipose tissue area is a predictive biomarker for the efficacy of pegylated liposomal doxorubicin in platinum-refractory/resistant ovarian cancer. Cancer Med 2023. [PMID: 37184128 PMCID: PMC10358198 DOI: 10.1002/cam4.6086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 05/16/2023] Open
Abstract
BACKGROUND Pegylated liposomal doxorubicin (PLD), an anthracycline agent, is widely used as a treatment option for platinum-refractory/resistant epithelial ovarian cancer (EOC). Although only a subset of patients with platinum-refractory/resistant EOC derive benefit from PLD, predictive biomarkers for patients who will respond to the drug have not yet been established. Here, we evaluated the relationship between adipose tissue status and PLD efficacy in patients with platinum-refractory/resistant EOC. METHODS Patients with platinum-refractory/resistant EOC who were treated with single-agent PLD were included in this retrospective cohort study. Adipose tissue areas including visceral adipose tissue area (VATA), subcutaneous adipose tissue area (SATA), and visceral to subcutaneous adipose tissue area ratio (VSR) were calculated prior to the initiation of PLD using computed tomography images. The associations of adipose tissue areas with objective response rate (ORR) and patient survival were evaluated. RESULTS Forty-four patients with platinum-refractory/resistant EOC who received single-agent PLD were included. Subjects were categorized into high and low groups according to the median VATA, SATA, and VSR values, and body mass index (BMI). The ORR of PLD was significantly lower in the VSR-high group than in the VSR-low group (p = 0.0089). Patients in the high VSR group showed significantly shorter progression-free survival (PFS) compared with patients in the low VSR group (median, 4.0 vs. 8.5 months; p = 0.020). In the multivariable analysis, high VSR was a significant prognostic factor for shorter PFS (hazard ratio, 2.07; 95% confidence interval, 1.05-4.19; p = 0.035). VATA, SATA, and BMI showed no significant association with ORR and survival of patients who received PLD. CONCLUSIONS High VSR is associated with lower ORR and shorter PFS in patients with platinum-refractory/resistant EOC who received single-agent PLD. VSR is a robust predictive biomarker for the efficacy of PLD.
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Affiliation(s)
- Hiroyuki Yoshida
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Keiichi Fujiwara
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
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21
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Truong MA, Funasaki T, Ueberricke L, Nojo W, Murdey R, Yamada T, Hu S, Akatsuka A, Sekiguchi N, Hira S, Xie L, Nakamura T, Shioya N, Kan D, Tsuji Y, Iikubo S, Yoshida H, Shimakawa Y, Hasegawa T, Kanemitsu Y, Suzuki T, Wakamiya A. Tripodal Triazatruxene Derivative as a Face-On Oriented Hole-Collecting Monolayer for Efficient and Stable Inverted Perovskite Solar Cells. J Am Chem Soc 2023; 145:7528-7539. [PMID: 36947735 DOI: 10.1021/jacs.3c00805] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Hole-collecting monolayers have drawn attention in perovskite solar cell research due to their ease of processing, high performance, and good durability. Since molecules in the hole-collecting monolayer are typically composed of functionalized π-conjugated structures, hole extraction is expected to be more efficient when the π-cores are oriented face-on with respect to the adjacent surfaces. However, strategies for reliably controlling the molecular orientation in monolayers remain elusive. In this work, multiple phosphonic acid anchoring groups were used to control the molecular orientation of a series of triazatruxene derivatives chemisorbed on a transparent conducting oxide electrode surface. Using infrared reflection absorption spectroscopy and metastable atom electron spectroscopy, we found that multipodal derivatives align face-on to the electrode surface, while the monopodal counterpart adopts a more tilted configuration. The face-on orientation was found to facilitate hole extraction, leading to inverted perovskite solar cells with enhanced stability and high-power conversion efficiencies up to 23.0%.
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Affiliation(s)
- Minh Anh Truong
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Tsukasa Funasaki
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Lucas Ueberricke
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Wataru Nojo
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Richard Murdey
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takumi Yamada
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Shuaifeng Hu
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Aruto Akatsuka
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Naomu Sekiguchi
- Department of Advanced Materials Science and Engineering, Faculty of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Shota Hira
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Lingling Xie
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Tomoya Nakamura
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Nobutaka Shioya
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Daisuke Kan
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yuta Tsuji
- Department of Advanced Analytical Science for Materials and Devices, Faculty of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Satoshi Iikubo
- Department of Advanced Materials Science and Engineering, Faculty of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Hiroyuki Yoshida
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Molecular Chirality Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yuichi Shimakawa
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takeshi Hasegawa
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yoshihiko Kanemitsu
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Atsushi Wakamiya
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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Kawamoto A, Kuwano T, Watarai E, Igarashi T, Katayama Y, Kushida K, Nakamura S, Murase T, Yoshida H, Ishikawa J. Oleic acid-induced interleukin-36γ: A possible link between facial skin redness and sebum. J Cosmet Dermatol 2023. [PMID: 36891608 DOI: 10.1111/jocd.15697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/16/2023] [Accepted: 02/14/2023] [Indexed: 03/10/2023]
Abstract
BACKGROUND Redness of the facial skin is an important cosmetic concern. Although qualitative and quantitative modifications of sebum on the skin surface are major pathogenic factors of chronic inflammatory skin conditions, the relationship between skin redness, sebum, and mild inflammation on the cheeks of healthy subjects remains elusive. AIMS We aimed to explore the correlation between cheek redness and sebum and inflammatory cytokines in the stratum corneum (SC) of healthy subjects. We also examined the effects of representative sebum lipids on the gene expression of inflammatory cytokines in cultured keratinocytes. PATIENTS/METHODS This study included 198 healthy participants. Skin sebum was analyzed using flow injection analysis, and skin redness was assessed using a spectrophotometer. Inflammatory cytokines in tape-stripped SC were measured using enzyme-linked immunosorbent assay. RESULTS Cheek redness parameters positively correlated with the amount of skin sebum and the proportion of monounsaturated free fatty acids (C16:1 and C18:1) in the sebum. They also positively correlated with the interleukin (IL)-36γ/IL-37 ratio in the SC. Among the representative sebum lipids examined, oleic acid (C18:1, cis-9) dose- and time-dependently regulated the mRNA expression of IL-36γ and IL-37 in cultured keratinocytes, and this effect was attenuated by the N-methyl-D-aspartate (NMDA)-type glutamate receptor antagonist, MK801. CONCLUSIONS Skin surface sebum may be related to cheek redness in healthy subjects, and oleic acid-induced IL-36γ through NMDA-type glutamate receptors may be a link between them. Our study provides a possible skincare strategy for mitigating unfavorable increase in skin redness by targeting the facial skin sebum, particularly oleic acid.
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Affiliation(s)
- Akane Kawamoto
- Biological Science Research, Kao Corporation, Tochigi, Japan
| | - Tetsuya Kuwano
- Biological Science Research, Kao Corporation, Tochigi, Japan
| | - Etsuko Watarai
- Skin Care Products Research, Kao Corporation, Odawara, Japan
| | | | | | - Ken Kushida
- Analytical Science Research, Kao Corporation, Tochigi, Japan
| | - Shun Nakamura
- Analytical Science Research, Kao Corporation, Tochigi, Japan
| | | | | | - Junko Ishikawa
- Biological Science Research, Kao Corporation, Tochigi, Japan
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23
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Kawamoto A, Yoshida H, Haneoka M, Nakamura S, Kabashima K, Takahashi Y. Chain length of covalently bound ceramides correlates with skin barrier function in healthy subjects. J Dermatol Sci 2023; 110:35-38. [DOI: 10.1016/j.jdermsci.2023.02.007] [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] [Received: 12/01/2022] [Revised: 02/22/2023] [Accepted: 02/27/2023] [Indexed: 03/31/2023]
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Sabatier R, Rousseau F, Joly F, Cropet C, Montégut C, Frindte J, Cinieri S, Guerra Alía EM, Polterauer S, Yoshida H, Vergote I, Colombo N, Hietanen S, Largillier R, Canzler U, Gratet A, Marmé F, Favier L, Pujade-Lauraine E, Ray-Coquard I. Efficacy and safety of maintenance olaparib and bevacizumab in ovarian cancer patients aged ≥65 years from the PAOLA-1/ENGOT-ov25 trial. Eur J Cancer 2023; 181:42-52. [PMID: 36634389 DOI: 10.1016/j.ejca.2022.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/25/2022] [Accepted: 11/29/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND The phase III PAOLA-1/ENGOT-ov25 study (NCT02477644) showed that addition of olaparib to bevacizumab maintenance improved progression-free survival (PFS) in patients with newly diagnosed advanced ovarian cancer. We evaluated maintenance olaparib plus bevacizumab in older patients in PAOLA-1. METHODS Baseline clinical and molecular data, and PFS, were compared between older (aged ≥65 years) and younger patients (<65 years). Factors associated with olaparib efficacy, and safety in age subgroups, were also assessed. RESULTS Of 806 randomised patients, 292 (36.2%) were ≥65 years. A lower proportion of older versus younger patients had an Eastern Cooperative Oncology Group performance status of 0 (61.0% versus 76.2%) and upfront surgery (42.0% versus 55.7%). Older patients were less likely to have a BRCA1/2 mutation (17.1% versus 36.7%) or homologous recombination deficiency-positive status (34.1% versus 55.7%). After median follow-up of 22.1 months, median PFS was 21.6 months with olaparib versus 16.6 months with placebo in the older population (hazard ratio [HR] 0.55, 95% confidence interval [CI] 0.41-0.75), comparable with the younger population (median 22.9 versus 16.9 months; HR 0.61, 95% CI 0.49-0.77). PFS benefits were observed in patients with a BRCA mutation or homologous recombination deficiency-positive tumours. Incidence of olaparib-related grade ≥3 adverse events in older patients was comparable with that of younger patients (36.8% versus 31.7%) although hypertension and anaemia were more common in older patients. No treatment-related deaths occurred in older patients receiving olaparib. CONCLUSION Older patients enrolled in PAOLA-1 achieved similar PFS benefits compared with younger patients, with a similar safety profile.
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Affiliation(s)
- Renaud Sabatier
- Department of Medical Oncology, Institut Paoli-Calmettes, CRCM, Aix-Marseille Univ, Inserm, CNRS, Marseille, and GINECO, France.
| | - Frédérique Rousseau
- Department of Medical Oncology, Institut Paoli-Calmettes, CRCM, Aix-Marseille Univ, Inserm, CNRS, Marseille, and GINECO, France
| | | | | | - Coline Montégut
- Department of Medical Oncology, Institut Paoli-Calmettes, CRCM, Aix-Marseille Univ, Inserm, CNRS, Marseille, and GINECO, France
| | - Johanna Frindte
- Department of Gynecology & Gynecologic Oncology, Kliniken Essen-Mitte, Essen, and AGO, Germany
| | - Saverio Cinieri
- UOC Oncologia Medica - Ospedale Senatore Antonio Perrino, Brindisi, and MITO, Italy
| | | | - Stephan Polterauer
- Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, and AGO-Austria, Austria
| | | | - Ignace Vergote
- University Hospital Leuven, Leuven Cancer Institute, Leuven, and BGOG, European Union, Belgium
| | - Nicoletta Colombo
- University of Milan-Bicocca and Istituto Europeo di Oncologia, Milan, and MANGO, Italy
| | | | | | - Ulrich Canzler
- Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, and National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, and AGO, Germany
| | | | - Frederik Marmé
- Medical Faculty Mannheim, Heidelberg University, Mannheim, and AGO, Germany
| | - Laure Favier
- Centre Georges François Leclerc, Dijon, and GINECO, France
| | | | - Isabelle Ray-Coquard
- Centre Léon Bérard and University Claude Bernard Lyon 1, Lyon and GINECO, France
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25
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Nakamura T, Matsumoto M, Amano K, Enokido Y, Zolensky ME, Mikouchi T, Genda H, Tanaka S, Zolotov MY, Kurosawa K, Wakita S, Hyodo R, Nagano H, Nakashima D, Takahashi Y, Fujioka Y, Kikuiri M, Kagawa E, Matsuoka M, Brearley AJ, Tsuchiyama A, Uesugi M, Matsuno J, Kimura Y, Sato M, Milliken RE, Tatsumi E, Sugita S, Hiroi T, Kitazato K, Brownlee D, Joswiak DJ, Takahashi M, Ninomiya K, Takahashi T, Osawa T, Terada K, Brenker FE, Tkalcec BJ, Vincze L, Brunetto R, Aléon-Toppani A, Chan QHS, Roskosz M, Viennet JC, Beck P, Alp EE, Michikami T, Nagaashi Y, Tsuji T, Ino Y, Martinez J, Han J, Dolocan A, Bodnar RJ, Tanaka M, Yoshida H, Sugiyama K, King AJ, Fukushi K, Suga H, Yamashita S, Kawai T, Inoue K, Nakato A, Noguchi T, Vilas F, Hendrix AR, Jaramillo-Correa C, Domingue DL, Dominguez G, Gainsforth Z, Engrand C, Duprat J, Russell SS, Bonato E, Ma C, Kawamoto T, Wada T, Watanabe S, Endo R, Enju S, Riu L, Rubino S, Tack P, Takeshita S, Takeichi Y, Takeuchi A, Takigawa A, Takir D, Tanigaki T, Taniguchi A, Tsukamoto K, Yagi T, Yamada S, Yamamoto K, Yamashita Y, Yasutake M, Uesugi K, Umegaki I, Chiu I, Ishizaki T, Okumura S, Palomba E, Pilorget C, Potin SM, Alasli A, Anada S, Araki Y, Sakatani N, Schultz C, Sekizawa O, Sitzman SD, Sugiura K, Sun M, Dartois E, De Pauw E, Dionnet Z, Djouadi Z, Falkenberg G, Fujita R, Fukuma T, Gearba IR, Hagiya K, Hu MY, Kato T, Kawamura T, Kimura M, Kubo MK, Langenhorst F, Lantz C, Lavina B, Lindner M, Zhao J, Vekemans B, Baklouti D, Bazi B, Borondics F, Nagasawa S, Nishiyama G, Nitta K, Mathurin J, Matsumoto T, Mitsukawa I, Miura H, Miyake A, Miyake Y, Yurimoto H, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Tachibana S, Connolly HC, Lauretta DS, Yoshitake M, Yoshikawa M, Yoshikawa K, Yoshihara K, Yokota Y, Yogata K, Yano H, Yamamoto Y, Yamamoto D, Yamada M, Yamada T, Yada T, Wada K, Usui T, Tsukizaki R, Terui F, Takeuchi H, Takei Y, Iwamae A, Soejima H, Shirai K, Shimaki Y, Senshu H, Sawada H, Saiki T, Ozaki M, Ono G, Okada T, Ogawa N, Ogawa K, Noguchi R, Noda H, Nishimura M, Namiki N, Nakazawa S, Morota T, Miyazaki A, Miura A, Mimasu Y, Matsumoto K, Kumagai K, Kouyama T, Kikuchi S, Kawahara K, Kameda S, Iwata T, Ishihara Y, Ishiguro M, Ikeda H, Hosoda S, Honda R, Honda C, Hitomi Y, Hirata N, Hirata N, Hayashi T, Hayakawa M, Hatakeda K, Furuya S, Fukai R, Fujii A, Cho Y, Arakawa M, Abe M, Watanabe S, Tsuda Y. Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples. Science 2023; 379:eabn8671. [PMID: 36137011 DOI: 10.1126/science.abn8671] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System. The samples contain low abundances of materials that formed at high temperatures, such as chondrules and calcium- and aluminum-rich inclusions. The samples are rich in phyllosilicates and carbonates, which formed through aqueous alteration reactions at low temperature, high pH, and water/rock ratios of <1 (by mass). Less altered fragments contain olivine, pyroxene, amorphous silicates, calcite, and phosphide. Numerical simulations, based on the mineralogical and physical properties of the samples, indicate that Ryugu's parent body formed ~2 million years after the beginning of Solar System formation.
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Affiliation(s)
- T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsumoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Amano
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Enokido
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M E Zolensky
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - T Mikouchi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Genda
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - M Y Zolotov
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - S Wakita
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - R Hyodo
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Nagano
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - D Nakashima
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Isotope Science Center, The University of Tokyo, Tokyo 113-0032, Japan
| | - Y Fujioka
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Kikuiri
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - E Kagawa
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsuoka
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8567, Japan
| | - A J Brearley
- Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China
| | - M Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Matsuno
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Y Kimura
- Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan
| | - M Sato
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R E Milliken
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, Tenerife 38205, Spain
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Hiroi
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - K Kitazato
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D Brownlee
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - D J Joswiak
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - M Takahashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Ninomiya
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Takahashi
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Osawa
- Materials Sciences Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Terada
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - F E Brenker
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - B J Tkalcec
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - L Vincze
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - R Brunetto
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - A Aléon-Toppani
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Q H S Chan
- Department of Earth Sciences, Royal Holloway, University of London, Egham TW20 0EX, UK
| | - M Roskosz
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - J-C Viennet
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - P Beck
- Institut de Planétologie et d'Astrophysique de Grenoble, CNRS, Université Grenoble Alpes, 38000 Grenoble, France
| | - E E Alp
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Nagaashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan.,Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - T Tsuji
- Department of Earth Resources Engineering, Kyushu University, Fukuoka 819-0395, Japan.,School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Ino
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Kwansei Gakuin University, Sanda 669-1330, Japan
| | - J Martinez
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - J Han
- Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA
| | - A Dolocan
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - R J Bodnar
- Department of Geoscience, Virginia Tech, Blacksburg, VA 24061, USA
| | - M Tanaka
- Materials Analysis Station, National Institute for Materials Science, Tsukuba 305-0047, Japan
| | - H Yoshida
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Sugiyama
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - A J King
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - K Fukushi
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - H Suga
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S Yamashita
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - T Kawai
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Inoue
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Noguchi
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan.,Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - F Vilas
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - A R Hendrix
- Planetary Science Institute, Tucson, AZ 85719, USA
| | | | - D L Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - G Dominguez
- Department of Physics, California State University, San Marcos, CA 92096, USA
| | - Z Gainsforth
- Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA
| | - C Engrand
- Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - J Duprat
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - S S Russell
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - E Bonato
- Institute for Planetary Research, Deutsches Zentrum für Luftund Raumfahrt, Rutherfordstraße 2 12489 Berlin, Germany
| | - C Ma
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena CA 91125, USA
| | - T Kawamoto
- Department of Geosciences, Shizuoka University, Shizuoka 422-8529, Japan
| | - T Wada
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan
| | - R Endo
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Enju
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - L Riu
- European Space Astronomy Centre, 28692 Villanueva de la Cañada, Spain
| | - S Rubino
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - P Tack
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - S Takeshita
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - Y Takeichi
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan.,Department of Applied Physics, Osaka University, Suita 565-0871, Japan
| | - A Takeuchi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - A Takigawa
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - D Takir
- NASA Johnson Space Center; Houston, TX 77058, USA
| | | | - A Taniguchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori 590-0494, Japan
| | - K Tsukamoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Yagi
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K Yamamoto
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Yamashita
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - M Yasutake
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - K Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - I Umegaki
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan.,Toyota Central Research and Development Laboratories, Nagakute 480-1192, Japan
| | - I Chiu
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Ishizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Okumura
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - E Palomba
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome 00133, Italy
| | - C Pilorget
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France.,Institut Universitaire de France, Paris, France
| | - S M Potin
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Faculty of Aerospace Engineering, Delft University of Technology, Delft, Netherlands
| | - A Alasli
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - S Anada
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Araki
- Department of Physical Sciences, Ritsumeikan University, Shiga 525-0058, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - C Schultz
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - O Sekizawa
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S D Sitzman
- Physical Sciences Laboratory, The Aerospace Corporation, CA 90245, USA
| | - K Sugiura
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - M Sun
- Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - E Dartois
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - E De Pauw
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - Z Dionnet
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Z Djouadi
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - G Falkenberg
- Deutsches Elektronen-Synchrotron Photon Science, 22603 Hamburg, Germany
| | - R Fujita
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - T Fukuma
- Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - I R Gearba
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - K Hagiya
- Graduate School of Life Science, University of Hyogo, Hyogo 678-1297, Japan
| | - M Y Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Kato
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - T Kawamura
- Institut de Physique du Globe de Paris, Université de Paris, Paris 75205, France
| | - M Kimura
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - M K Kubo
- Division of Natural Sciences, International Christian University, Mitaka 181-8585, Japan
| | - F Langenhorst
- Institute of Geosciences, Friedrich-Schiller-Universität Jena, 07745 Jena, Germany
| | - C Lantz
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Lavina
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - M Lindner
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - J Zhao
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - B Vekemans
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - D Baklouti
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Bazi
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - F Borondics
- Optimized Light Source of Intermediate Energy to LURE (SOLEIL) L'Orme des Merisiers, Gif sur Yvette F-91192, France
| | - S Nagasawa
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - G Nishiyama
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Nitta
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Mathurin
- Institut Chimie Physique, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - T Matsumoto
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - I Mitsukawa
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - H Miura
- Graduate School of Science, Nagoya City University, Nagoya 467-8501, Japan
| | - A Miyake
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Y Miyake
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - H Yurimoto
- Department of Natural History Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - H Yabuta
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - K Sakamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tachibana
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H C Connolly
- Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yoshihara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - D Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Department of Mechanical Engineering, Kanagawa Institute of Technology, Atsugi 243-0292, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Iwamae
- Marine Works Japan, Yokosuka 237-0063, Japan
| | - H Soejima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Noguchi
- Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Namiki
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Matsumoto
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kumagai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - T Kouyama
- Digital Architecture Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - S Kikuchi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kawahara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Kameda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan.,Center for Data Science, Ehime University, Matsuyama 790-8577, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Hitomi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Hayashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - S Furuya
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Fukai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
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26
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Koishi M, Tomota K, Nakamoto M, Yoshida H. Direct Suzuki‐Miyaura Coupling of Naphthalene‐1,8‐diaminato (dan)‐Substituted Cyclopropylboron Compounds. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202300059] [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: 02/18/2023]
Affiliation(s)
- M. Koishi
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima 739-8526 Japan
| | - K. Tomota
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima 739-8526 Japan
| | - M. Nakamoto
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima 739-8526 Japan
| | - H. Yoshida
- Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima 739-8526 Japan
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27
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Iida Y, Näppi J, Kitano T, Hironaka T, Katsumata A, Yoshida H. Detection of aspiration from images of a videofluoroscopic swallowing study adopting deep learning. Oral Radiol 2023:10.1007/s11282-023-00669-8. [PMID: 36753006 DOI: 10.1007/s11282-023-00669-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 01/12/2023] [Indexed: 02/09/2023]
Abstract
OBJECTIVES A videofluoroscopic swallowing study (VFSS) is conducted to detect aspiration. However, aspiration occurs within a short time and is difficult to detect. If deep learning can detect aspirations with high accuracy, clinicians can focus on the diagnosis of the detected aspirations. Whether VFSS aspirations can be classified using rapid-prototyping deep-learning tools was studied. METHODS VFSS videos were separated into individual image frames. A region of interest was defined on the pharynx. Three convolutional neural networks (CNNs), namely a Simple-Layer CNN, Multiple-Layer CNN, and Modified LeNet, were designed for the classification. The performance results of the CNNs were compared in terms of the areas under their receiver-operating characteristic curves (AUCs). RESULTS A total of 18,333 images obtained through data augmentation were selected for the evaluation. The different CNNs yielded sensitivities of 78.8%-87.6%, specificities of 91.9%-98.1%, and overall accuracies of 85.8%-91.7%. The AUC of 0.974 obtained for the Simple-Layer CNN and Modified LeNet was significantly higher than that obtained for the Multiple-Layer CNN (AUC of 0.936) (p < 0.001). CONCLUSIONS The results of this study show that deep learning has potential for detecting aspiration with high accuracy.
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Affiliation(s)
- Yukihiro Iida
- Department of Oral Radiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu, 501-0296, Japan. .,3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 125 Nashua, MA, 021124, Boston, USA.
| | - Janne Näppi
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 125 Nashua, MA, 021124, Boston, USA
| | - Tomoya Kitano
- Department of Oral Radiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu, 501-0296, Japan
| | - Toru Hironaka
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 125 Nashua, MA, 021124, Boston, USA
| | - Akitoshi Katsumata
- Department of Oral Radiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu, 501-0296, Japan
| | - Hiroyuki Yoshida
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 125 Nashua, MA, 021124, Boston, USA
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28
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Yamashita S, Sato T, Nagae Y, Kurata M, Yoshida H. Numerical simulation method using a Cartesian grid for oxidation of core materials under steam-starved conditions. J NUCL SCI TECHNOL 2023. [DOI: 10.1080/00223131.2022.2162996] [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: 02/05/2023]
Affiliation(s)
- Susumu Yamashita
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Takumi Sato
- Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima
| | - Yuji Nagae
- Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima
| | - Masaki Kurata
- Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima
| | - Hiroyuki Yoshida
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
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29
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Hadjiiski L, Cha K, Chan HP, Drukker K, Morra L, Näppi JJ, Sahiner B, Yoshida H, Chen Q, Deserno TM, Greenspan H, Huisman H, Huo Z, Mazurchuk R, Petrick N, Regge D, Samala R, Summers RM, Suzuki K, Tourassi G, Vergara D, Armato SG. AAPM task group report 273: Recommendations on best practices for AI and machine learning for computer-aided diagnosis in medical imaging. Med Phys 2023; 50:e1-e24. [PMID: 36565447 DOI: 10.1002/mp.16188] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/13/2022] [Accepted: 11/22/2022] [Indexed: 12/25/2022] Open
Abstract
Rapid advances in artificial intelligence (AI) and machine learning, and specifically in deep learning (DL) techniques, have enabled broad application of these methods in health care. The promise of the DL approach has spurred further interest in computer-aided diagnosis (CAD) development and applications using both "traditional" machine learning methods and newer DL-based methods. We use the term CAD-AI to refer to this expanded clinical decision support environment that uses traditional and DL-based AI methods. Numerous studies have been published to date on the development of machine learning tools for computer-aided, or AI-assisted, clinical tasks. However, most of these machine learning models are not ready for clinical deployment. It is of paramount importance to ensure that a clinical decision support tool undergoes proper training and rigorous validation of its generalizability and robustness before adoption for patient care in the clinic. To address these important issues, the American Association of Physicists in Medicine (AAPM) Computer-Aided Image Analysis Subcommittee (CADSC) is charged, in part, to develop recommendations on practices and standards for the development and performance assessment of computer-aided decision support systems. The committee has previously published two opinion papers on the evaluation of CAD systems and issues associated with user training and quality assurance of these systems in the clinic. With machine learning techniques continuing to evolve and CAD applications expanding to new stages of the patient care process, the current task group report considers the broader issues common to the development of most, if not all, CAD-AI applications and their translation from the bench to the clinic. The goal is to bring attention to the proper training and validation of machine learning algorithms that may improve their generalizability and reliability and accelerate the adoption of CAD-AI systems for clinical decision support.
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Affiliation(s)
- Lubomir Hadjiiski
- Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Kenny Cha
- U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Heang-Ping Chan
- Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Karen Drukker
- Department of Radiology, University of Chicago, Chicago, Illinois, USA
| | - Lia Morra
- Department of Control and Computer Engineering, Politecnico di Torino, Torino, Italy
| | - Janne J Näppi
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Berkman Sahiner
- U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Hiroyuki Yoshida
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Quan Chen
- Department of Radiation Medicine, University of Kentucky, Lexington, Kentucky, USA
| | - Thomas M Deserno
- Peter L. Reichertz Institute for Medical Informatics of TU Braunschweig and Hannover Medical School, Braunschweig, Germany
| | - Hayit Greenspan
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv, Israel & Department of Radiology, Ichan School of Medicine, Tel Aviv University, Mt Sinai, New York, New York, USA
| | - Henkjan Huisman
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Zhimin Huo
- Tencent America, Palo Alto, California, USA
| | - Richard Mazurchuk
- Division of Cancer Prevention, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Daniele Regge
- Radiology Unit, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy.,Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Ravi Samala
- U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Ronald M Summers
- Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Kenji Suzuki
- Institute of Innovative Research, Tokyo Institute of Technology, Tokyo, Japan
| | | | - Daniel Vergara
- Department of Radiology, Yale New Haven Hospital, New Haven, Connecticut, USA
| | - Samuel G Armato
- Department of Radiology, University of Chicago, Chicago, Illinois, USA
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Abstract
Several good manufacturing practice (GMP) compliance issues and their associated quality problems that have been revealed since 2020 have led to large-scale recalls and supply suspensions of drug products in Japan. This paper provides an overview of the causes and countermeasures for supply disruptions of low-molecular-weight chemical pharmaceutical agents, focusing on quality-related issues. A recent increase in the use of generic drugs emphasized the importance of strengthening active pharmaceutical ingredient (API) supply chains and ensuring GMP compliance among drug manufacturers. In addition, increasing recalls in the drug products of certain marketing authorization holders due to storage stability problems strongly suggests the need to improve their development process considerably. Other measures to stabilize the supply of pharmaceuticals, including increasing stockpiles of APIs, were also discussed.
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Affiliation(s)
| | - Yasuhiro Abe
- Division of Drugs, National Institute of Health Sciences
| | - Mari Kurita
- Division of Drugs, National Institute of Health Sciences
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31
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Sabli N, Abu Toat S, Yoshida H, Shamsul Izhar SI. Hydrolysis of Blended Cotton/Polyester Fabric from Hospital Waste using Subcritical Water. SAINS MALAYS 2023. [DOI: 10.17576/jsm-2023-5201-11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Currently in Malaysia, most wastes are disposed into poorly managed systems with little or no pollution protection measures. Large amounts of wastes such as textiles are generated through hospitals and health care centers. However, the improper management of these abundantly generated wastes may pose an environmental pollution problems and fire hazard. Cotton textile is a potential biomass for bioethanol production. Subcritical water (Sub-CW) hydrolysis was investigated as an alternative technology for the recycling of cotton textile waste for current health care waste management. The aim of this study was to investigate the possibility of complete conversion of cotton textile waste to ethanol via Sub-CW hydrolysis and fermentation. Sub-CW was carried out to facilitate the hydrolysis of cellulose component in cotton textile (cotton 75%+polyester 25%). The study was divided into two parts; (i) To evaluate the subcritical water parameters such as temperature and time to achieve maximum yield of sugars. (ii) Fermentation of the hydrolysate obtained from Sub-CW hydrolysis to ethanol. Under Sub-CW conditions of temperature (140 °C - 350 °C), reaction time (1-10 min) and water to cotton ratio (3:1) showed that cotton textile treated at 280 °C for 4 min, was optimal for maximizing yield of sugar, which was 0.213 g/g-dry sample. The quantitative analysis by HPLC showed that the soluble carbohydrates in the water phase were mainly composed of glucose. The obtained glucose concentration, 171 mg/L was then fermented at 36 °C for 24 hours by Saccharomyces cerevisae (yeast) to ethanol. Highest yield of ethanol was 0.415 g/g glucose, which was 81.2 % of theoretical yield. Hydrolysis with Sub-CW showed the potential to decompose the cotton textile into simple sugar while keeping sugar degradation to minimal phase and the possibility of complete conversion of cotton textile waste to ethanol via Sub-CW and fermentation.
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Pujade-Lauraine E, Brown J, Barnicle A, Wessen J, Lao-Sirieix P, Criscione SW, du Bois A, Lorusso D, Romero I, Petru E, Yoshida H, Vergote I, Colombo N, Hietanen S, Provansal M, Schmalfeldt B, Pignata S, Martín Lorente C, Berton D, Runnebaum IB, Ray-Coquard I. Homologous Recombination Repair Gene Mutations to Predict Olaparib Plus Bevacizumab Efficacy in the First-Line Ovarian Cancer PAOLA-1/ENGOT-ov25 Trial. JCO Precis Oncol 2023; 7:e2200258. [PMID: 36716415 PMCID: PMC9928987 DOI: 10.1200/po.22.00258] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
PURPOSE The PAOLA-1/ENGOT-ov25 trial of maintenance olaparib plus bevacizumab for newly diagnosed advanced high-grade ovarian cancer demonstrated a significant progression-free survival (PFS) benefit over placebo plus bevacizumab, particularly in patients with homologous recombination deficiency (HRD)-positive tumors. We explored whether mutations in non-BRCA1 or BRCA2 homologous recombination repair (non-BRCA HRRm) genes predicted benefit from olaparib plus bevacizumab in PAOLA-1. METHODS Eight hundred and six patients were randomly assigned (2:1). Tumors were analyzed using the Myriad MyChoice HRD Plus assay to assess non-BRCA HRRm and HRD status; HRD was based on a genomic instability score (GIS) of ≥ 42. In this exploratory analysis, PFS was assessed in patients harboring deleterious mutations using six non-BRCA HRR gene panels, three devised for this analysis and three previously published. RESULTS The non-BRCA HRRm prevalence ranged from 30 of 806 (3.7%) to 79 of 806 (9.8%) depending on the gene panel used, whereas 152 of 806 (18.9%) had non-BRCA1 or BRCA2 mutation HRD-positive tumors. The majority of tumors harboring non-BRCA HRRm had a low median GIS; however, a GIS of > 42 was observed for tumors with mutations in five HRR genes (BLM, BRIP1, RAD51C, PALB2, and RAD51D). Rates of gene-specific biallelic loss were variable (0% to 100%) in non-BRCA HRRm tumors relative to BRCA1-mutated (99%) or BRCA2-mutated (86%) tumors. Across all gene panels tested, hazard ratios for PFS (95% CI) ranged from 0.92 (0.51 to 1.73) to 1.83 (0.76 to 5.43). CONCLUSION Acknowledging limitations of small subgroup sizes, non-BRCA HRRm gene panels were not predictive of PFS benefit with maintenance olaparib plus bevacizumab versus placebo plus bevacizumab in PAOLA-1, irrespective of the gene panel tested. Current gene panels exploring HRRm should not be considered a substitute for HRD determined by BRCA mutation status and genomic instability testing in first-line high-grade ovarian cancer.
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Affiliation(s)
- Eric Pujade-Lauraine
- ARCAGY-GINECO, Paris, France,Eric Pujade-Lauraine, MD, 8 rue Lamennais, 75008 Paris, France; e-mail:
| | | | | | | | | | | | | | - Domenica Lorusso
- Fondazione IRCCS Istituto Nazionale Tumori, Milan and MITO, Italy
| | - Ignacio Romero
- Instituto Valenciano de Oncología, Valencia and GEICO, Spain
| | - Edgar Petru
- Universitätsklinik für Frauenheilkunde und Geburtshilfe der Med, Universität Graz, Graz and AGO, Austria
| | - Hiroyuki Yoshida
- Saitama Medical University International Medical Center, Saitama and GOTIC, Japan
| | - Ignace Vergote
- University Hospital Leuven, Leuven Cancer Institute, Leuven and BGOG, Belgium
| | - Nicoletta Colombo
- University of Milan-Bicocca and Istituto Europeo di Oncologia IRCCS, Milan and MANGO, Italy
| | | | | | | | - Sandro Pignata
- Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Naples and MITO, Italy
| | | | - Dominique Berton
- L'Institut de Cancérologie de l'Ouest (ICO), Center René Gauducheau, Saint Herblain and GINECO, France
| | - Ingo B. Runnebaum
- Jena University Hospital, Universitaets-Frauenklinik Jena and AGO, Germany
| | - Isabelle Ray-Coquard
- Center Léon Bérard and University Claude Bernard Lyon 1, Lyon and GINECO, France
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Matsui K, Nakamichi K, Nakatani M, Yoshida H, Yamashita S, Yokota S. Lowly-buffered biorelevant dissolution testing is not necessarily biopredictive of human bioequivalence study outcome: Relationship between dissolution and pharmacokinetics. Int J Pharm 2023; 631:122531. [PMID: 36563795 DOI: 10.1016/j.ijpharm.2022.122531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/28/2022] [Accepted: 12/18/2022] [Indexed: 12/25/2022]
Abstract
It has been revealed that buffer capacity of aspirated human intraluminal fluid is much lower than that of in vitro compendial dissolution media. Since buffer capacity significantly alters the dissolution profile of certain drug products, dissolution testing in highly buffered media dictates poor predictability of in vivo drug performance. To mitigate this inconsistency, low buffer capacity medium was suggested as an in vivo representation (biorelevant dissolution testing). The purpose of this study was to characterize the dissolution profiles of enteric-coated drug products in different buffer capacity media in a flow through cell dissolution apparatus, and to evaluate the in vivo predictability of human bioequivalence study outcomes conducted in the fasted state. It was confirmed that the lower the buffer capacity of dissolution media, the higher the discriminatory power of esomeprazole magnesium hydrate enteric-coated pellets, reflecting human bioequivalence failure. In the meantime, two duloxetine hydrochloride enteric-coated pellets also exhibited distinct dissolution profiles in such a lowly buffered medium despite the fact that these two are bioequivalent in human. Biopharmaceutical and pharmacokinetic characteristics comparison suggested that low intestinal permeability and small systemic elimination rate of duloxetine hinders the clear impact of different dissolution profile on its in vivo performance. These data suggest that dissolution comparison in physiologically-relevant low buffer capacity media is not always indicative of human bioequivalence. Instead, biopharmaceutical and pharmacokinetic aspects must be taken into consideration to make biorelevant dissolution testing biopredictive.
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Affiliation(s)
- Kazuki Matsui
- Research & Development Division, Sawai Pharmaceutical Co., Ltd., Osaka 532-0003, Japan.
| | - Katsuki Nakamichi
- Research & Development Division, Sawai Pharmaceutical Co., Ltd., Osaka 532-0003, Japan
| | - Masatoshi Nakatani
- Research & Development Division, Sawai Pharmaceutical Co., Ltd., Osaka 532-0003, Japan
| | - Hiroyuki Yoshida
- Division of Drugs, National Institute of Health Sciences, Kawasaki 210-9501, Japan
| | - Shinji Yamashita
- Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan
| | - Shoji Yokota
- Research & Development Division, Sawai Pharmaceutical Co., Ltd., Osaka 532-0003, Japan
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Marui S, Nishikawa Y, Shiokawa M, Yokode M, Matsumoto S, Muramoto Y, Ota S, Nakamura T, Yoshida H, Okada H, Kuwada T, Matsumori T, Kuriyama K, Fukuda A, Saur D, Aoi T, Uza N, Kodama Y, Chiba T, Seno H. Context-Dependent Roles of Hes1 in the Adult Pancreas and Pancreatic Tumor Formation. Gastroenterology 2022; 163:1613-1629.e12. [PMID: 36075324 DOI: 10.1053/j.gastro.2022.08.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 07/23/2022] [Accepted: 08/30/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND & AIMS The Notch signaling pathway is an important pathway in the adult pancreas and in pancreatic ductal adenocarcinoma (PDAC), with hairy and enhancer of split-1 (HES1) as the core molecule in this pathway. However, the roles of HES1 in the adult pancreas and PDAC formation remain controversial. METHODS We used genetically engineered dual-recombinase mouse models for inducing Hes1 deletion under various conditions. RESULTS The loss of Hes1 expression in the adult pancreas did not induce phenotypic alterations. However, regeneration was impaired after caerulein-induced acute pancreatitis. In a pancreatic intraepithelial neoplasia (PanIN) mouse model, PanINs rarely formed when Hes1 deletion preceded PanIN formation, whereas more PanINs were formed when Hes1 deletion succeeded PanIN formation. In a PDAC mouse model, PDAC formation was also enhanced by Hes1 deletion after PanIN/PDAC development; therefore, Hes1 promotes PanIN initiation but inhibits PanIN/PDAC progression. RNA sequencing and chromatin immunoprecipitation-quantitative polymerase chain reaction revealed that Hes1 deletion enhanced epithelial-to-mesenchymal transition via Muc5ac up-regulation in PDAC progression. The results indicated that HES1 is not required for maintaining the adult pancreas under normal conditions, but is important for regeneration during recovery from pancreatitis; moreover, Hes1 plays different roles, depending on the tumor condition. CONCLUSIONS Our findings highlight the context-dependent roles of HES1 in the adult pancreas and pancreatic cancer.
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Affiliation(s)
- Saiko Marui
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshihiro Nishikawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan; Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe, Hyogo, Japan; Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Masahiro Shiokawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Masataka Yokode
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shimpei Matsumoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuya Muramoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sakiko Ota
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeharu Nakamura
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroyuki Yoshida
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirokazu Okada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeshi Kuwada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoaki Matsumori
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Katsutoshi Kuriyama
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akihisa Fukuda
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Dieter Saur
- Department of Internal Medicine II, Klinikum rechts der Isar Technische Universität München, München, Bayern, Germany; Division of Translational Cancer Research, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Baden-Württemberg, Germany
| | - Takashi Aoi
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe, Hyogo, Japan
| | - Norimitsu Uza
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuzo Kodama
- Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Tsutomu Chiba
- Department of Gastroenterology and Hepatology, Kansai Electric Power Hospital, Osaka, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Kono A, Yoshioka R, Hawke P, Iwashina K, Inoue D, Suzuki M, Narita C, Haruta K, Miyake A, Yoshida H, Tosaka N. Correction to: A case of severe interstitial lung disease after COVID-19 vaccination. QJM 2022; 115:705. [PMID: 35312768 PMCID: PMC9383578 DOI: 10.1093/qjmed/hcac066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Kono
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - R Yoshioka
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - P Hawke
- School of Pharmaceutical Sciences, University of Shizuoka, 51-1 Yada Suruga ward, Shizuoka 422-8526, Japan
| | - K Iwashina
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - D Inoue
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - M Suzuki
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - C Narita
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - K Haruta
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - A Miyake
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - H Yoshida
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - N Tosaka
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
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Shiozawa J, de Vega S, Yoshinaga C, Ji X, Negishi Y, Momoeda M, Nakamura T, Yoshida H, Kaneko H, Ishijima M, Okada Y. Expression and regulation of recently discovered hyaluronidases, HYBID and TMEM2, in chondrocytes from knee osteoarthritic cartilage. Sci Rep 2022; 12:17242. [PMID: 36241903 PMCID: PMC9568606 DOI: 10.1038/s41598-022-22230-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 06/09/2022] [Accepted: 10/11/2022] [Indexed: 01/06/2023] Open
Abstract
Destruction of articular cartilage in osteoarthritis (OA) is initiated by depletion of the hyaluronan (HA)-aggrecan network, followed by degradation of the collagen fibrils. Previously, we reported the implications of HA-binding protein involved in HA depolymerization (HYBID), alias cell migration-inducing protein (CEMIP) and KIAA1199, for HA degradation. However, transmembrane protein 2 (TMEM2), which is ~ 50% homologous to HYBID, was discovered as another hyaluronidase, but their expression and regulation by OA chondrocytes remain elusive. Here we report that the absolute mRNA copy numbers of HYBID are significantly (7.1-fold) higher in OA cartilage than normal cartilage, whereas TMEM2 levels are not different between the groups. HA-degrading activity of cultured OA chondrocytes disappeared by siRNA-mediated knockdown of HYBID, but not TMEM2. HYBID expression was significantly up-regulated by treatment with interleukin-6 (IL-6) or tumor necrosis factor-α (TNF-α) and additively increased by the combined treatment. No significant changes in the TMEM2 expression were seen by the factors examined. IL-1α remarkably enhanced IL-6 production and increased HYBID expression when soluble IL-6 receptor was supplemented. These results demonstrate that in stark contrast to the constitutive expression of TMEM2 and its negligible HA-degrading activity, HYBID is overexpressed in OA cartilage and up-regulated by IL-6 and TNF-α in OA chondrocytes.
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Affiliation(s)
- Jun Shiozawa
- grid.258269.20000 0004 1762 2738Department of Pathophysiology for Locomotive Diseases, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8241 Japan ,grid.258269.20000 0004 1762 2738Department of Medicine for Orthopaedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Susana de Vega
- grid.258269.20000 0004 1762 2738Department of Pathophysiology for Locomotive Diseases, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8241 Japan
| | - Chiho Yoshinaga
- grid.258269.20000 0004 1762 2738Department of Pathophysiology for Locomotive Diseases, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8241 Japan
| | - Xang Ji
- grid.258269.20000 0004 1762 2738Department of Pathophysiology for Locomotive Diseases, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8241 Japan ,grid.258269.20000 0004 1762 2738Sportology Center, Juntendo University, Tokyo, Japan
| | - Yoshifumi Negishi
- grid.258269.20000 0004 1762 2738Department of Medicine for Orthopaedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Masahiro Momoeda
- grid.258269.20000 0004 1762 2738Department of Medicine for Orthopaedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Tomomi Nakamura
- grid.419719.30000 0001 0816 944XBiological Science Research, Kao Corporation, Kanagawa, Japan
| | - Hiroyuki Yoshida
- grid.419719.30000 0001 0816 944XBiological Science Research, Kao Corporation, Kanagawa, Japan
| | - Haruka Kaneko
- grid.258269.20000 0004 1762 2738Department of Medicine for Orthopaedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Muneaki Ishijima
- grid.258269.20000 0004 1762 2738Department of Pathophysiology for Locomotive Diseases, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8241 Japan ,grid.258269.20000 0004 1762 2738Department of Medicine for Orthopaedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan ,grid.258269.20000 0004 1762 2738Sportology Center, Juntendo University, Tokyo, Japan
| | - Yasunori Okada
- grid.258269.20000 0004 1762 2738Department of Pathophysiology for Locomotive Diseases, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8241 Japan ,grid.258269.20000 0004 1762 2738Department of Medicine for Orthopaedics and Motor Organ, Graduate School of Medicine, Juntendo University, Tokyo, Japan
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Lu Y, Guan S, Hao L, Yoshida H, Nakada S, Takizawa T, Itoi T. Inactivation of SARS-CoV-2 and photocatalytic degradation by TiO 2 photocatalyst coatings. Sci Rep 2022; 12:16038. [PMID: 36163418 PMCID: PMC9512902 DOI: 10.1038/s41598-022-20459-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 07/12/2022] [Accepted: 09/13/2022] [Indexed: 11/09/2022] Open
Abstract
The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causative agent of the COVID-19, which is a global pandemic, has infected more than 552 million people, and killed more than 6.3 million people. SARS-CoV-2 can be transmitted through airborne route in addition to direct contact and droplet modes, the development of disinfectants that can be applied in working spaces without evacuating people is urgently needed. TiO2 is well known with some features of the purification, antibacterial/sterilization, making it could be developed disinfectants that can be applied in working spaces without evacuating people. Facing the severe epidemic, we expect to fully expand the application of our proposed effective approach of mechanical coating technique (MCT), which can be prepared on a large-scale fabrication of an easy-to-use TiO2/Ti photocatalyst coating, with hope to curb the epidemic. The photocatalytic inactivation of SARS-CoV-2 and influenza virus, and the photocatalytic degradation of acetaldehyde (C2H4O) and formaldehyde (CH2O) has been investigated. XRD and SEM results show that anatase TiO2 successfully coats on the surface of Ti coatings, while the crystal structure of anatase TiO2 can be increased during the following oxidation in air. The catalytic activity towards methylene blue of TiO2/Ti coating balls has been significantly enhanced by the followed oxidation in air, showing a very satisfying photocatalytic degradation of C2H4O and CH2O. Notably, the TiO2/Ti photocatalyst coating balls demonstrate a significant antiviral activity, with a decrease rate of virus reached 99.96% for influenza virus and 99.99% for SARS-CoV-2.
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Affiliation(s)
- Yun Lu
- Department of Mechanical Engineering, Chiba University, Chiba, 2638522, Japan.
| | - Sujun Guan
- Bio-Nano Electronics Research Centre, Toyo University, Saitama, 3508585, Japan
| | - Liang Hao
- College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin, 300222, China
| | - Hiroyuki Yoshida
- Chiba Industrial Technology Research Institute, Chiba, 2640017, Japan
| | - Shohei Nakada
- Department of Mechanical Engineering, Chiba University, Chiba, 2638522, Japan
| | - Taisei Takizawa
- Department of Mechanical Engineering, Chiba University, Chiba, 2638522, Japan
| | - Takaomi Itoi
- Department of Mechanical Engineering, Chiba University, Chiba, 2638522, Japan
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Tachibana R, Näppi JJ, Hironaka T, Yoshida H. Self-Supervised Adversarial Learning with a Limited Dataset for Electronic Cleansing in Computed Tomographic Colonography: A Preliminary Feasibility Study. Cancers (Basel) 2022; 14:4125. [PMID: 36077662 PMCID: PMC9454562 DOI: 10.3390/cancers14174125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/15/2022] [Accepted: 08/18/2022] [Indexed: 11/17/2022] Open
Abstract
Existing electronic cleansing (EC) methods for computed tomographic colonography (CTC) are generally based on image segmentation, which limits their accuracy to that of the underlying voxels. Because of the limitations of the available CTC datasets for training, traditional deep learning is of limited use in EC. The purpose of this study was to evaluate the technical feasibility of using a novel self-supervised adversarial learning scheme to perform EC with a limited training dataset with subvoxel accuracy. A three-dimensional (3D) generative adversarial network (3D GAN) was pre-trained to perform EC on CTC datasets of an anthropomorphic phantom. The 3D GAN was then fine-tuned to each input case by use of the self-supervised scheme. The architecture of the 3D GAN was optimized by use of a phantom study. The visually perceived quality of the virtual cleansing by the resulting 3D GAN compared favorably to that of commercial EC software on the virtual 3D fly-through examinations of 18 clinical CTC cases. Thus, the proposed self-supervised 3D GAN, which can be trained to perform EC on a small dataset without image annotations with subvoxel accuracy, is a potentially effective approach for addressing the remaining technical problems of EC in CTC.
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Affiliation(s)
- Rie Tachibana
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 25 New Chardon Street, Suite 400C, Boston, MA 02114, USA
- Information Science & Technology Department, National Institute of Technology, Oshima College, 1091-1 Komatsu Suo-Oshima, Oshima, Yamaguchi 742-2193, Japan
| | - Janne J. Näppi
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 25 New Chardon Street, Suite 400C, Boston, MA 02114, USA
| | - Toru Hironaka
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 25 New Chardon Street, Suite 400C, Boston, MA 02114, USA
| | - Hiroyuki Yoshida
- 3D Imaging Research, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 25 New Chardon Street, Suite 400C, Boston, MA 02114, USA
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Nagatake T, Shibata M, Yoshida H, Nemoto Y, Kaji Y. Experimental investigation of spray cooling behavior in 4×4 simulated fuel bundle. J NUCL SCI TECHNOL 2022. [DOI: 10.1080/00223131.2022.2096146] [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: 10/15/2022]
Affiliation(s)
- Taku Nagatake
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Mitsuhiko Shibata
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Hiroyuki Yoshida
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Yoshiyuki Nemoto
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Yoshiyuki Kaji
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
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Abd-Rahman SA, Yamaguchi T, Kera S, Yoshida H. Sample-shape dependent energy levels in organic semiconductors. Phys Rev B 2022; 106:075303. [DOI: 10.1103/physrevb.106.075303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Kukimoto I, Onuki M, Yamamoto K, Yahata H, Aoki Y, Yokota H, Konnai K, Nio A, Takehara K, Kamiura S, Tsuda N, Takei Y, Shimada M, Nakai H, Yoshida H, Motohara T, Yamazaki H, Nakamura K, Okunomiya A, Tasaka N, Ishikawa M, Hirashima Y, Shimoji Y, Mori M, Iwata T, Takahashi F, Yoshikawa H, Yaegashi N, Matsumoto K. Regional differences in human papillomavirus type 52 prevalence among Japanese women with cervical intraepithelial neoplasia†. Jpn J Clin Oncol 2022; 52:1242-1247. [PMID: 35938523 DOI: 10.1093/jjco/hyac127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Although geographical differences in the distribution of human papillomavirus genotypes have been observed worldwide, no studies have reported on national differences in the prevalence of human papillomavirus types in Japan. Here, we report a cross-sectional study to explore regional differences in the prevalence of human papillomavirus types among Japanese women with cervical intraepithelial neoplasia or invasive cervical cancer. Using human papillomavirus genotyping data from the nationwide prospective study on human papillomavirus vaccine effectiveness, we compared the frequency of detection of 15 high-risk and two low-risk human papillomavirus types in each disease category between the women who visited hospitals located in eastern Japan and those who visited hospitals located in western Japan. The risk of cervical intraepithelial neoplasia progression was assessed by calculating a prevalence ratio of each human papillomavirus type for cervical intraepithelial neoplasia grade 2/3 versus grade 1. Among the human papillomavirus types studied, human papillomavirus 52 was detected significantly more frequently in western hospitals than in eastern hospitals in cervical intraepithelial neoplasia grade 1 patients, but was less frequent in cervical intraepithelial neoplasia grade 2/3. The prevalence of particular human papillomavirus types was not significantly different between patients in hospitals in eastern Japan and those in hospitals in western Japan for invasive cervical cancer. In both eastern and western hospitals, a higher risk of cervical intraepithelial neoplasia progression was observed in patients infected with human papillomavirus 16, 31 or 58. In contrast, there was a significantly higher prevalence of human papillomavirus 52 infection in women with cervical intraepithelial neoplasia grade 2/3 than in those with cervical intraepithelial neoplasia grade 1 in eastern hospitals (prevalence ratio, 1.93; 95% confidence interval, 1.48-2.58), but not in western hospitals (prevalence ratio, 1.03; 95% confidence interval, 0.83-1.30). Regional differences of human papillomavirus 52 prevalence in cervical intraepithelial neoplasia lesions may exist and emphasize the importance of continuous monitoring of human papillomavirus type prevalence throughout the country in order to accurately assess the efficacy of human papillomavirus vaccines.
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Affiliation(s)
- Iwao Kukimoto
- Pathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mamiko Onuki
- Department of Obstetrics and Gynecology, Showa University School of Medicine, Tokyo, Japan
| | - Kasumi Yamamoto
- Department of Gynecologic Oncology, Hyogo Cancer Center, Akashi, Japan
| | - Hideaki Yahata
- Department of Gynecology and Obstetrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoichi Aoki
- Department of Gynecology, Cancer Institute Hospital, Tokyo, Japan
| | | | - Katsuyuki Konnai
- Department of Gynecology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Ai Nio
- Gynecology Service, NHO Kyushu Cancer Center, Fukuoka, Japan
| | - Kazuhiro Takehara
- Department of Gynecologic Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan
| | - Shoji Kamiura
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
| | - Naotake Tsuda
- Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Japan
| | - Yuji Takei
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi, Japan
| | - Muneaki Shimada
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hidekatsu Nakai
- Department of Obstetrics and Gynecology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Hiroyuki Yoshida
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Takeshi Motohara
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroyuki Yamazaki
- Department of Obstetrics and Gynecology, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Keiichiro Nakamura
- Department of Obstetrics and Gynecology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Asuka Okunomiya
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Nobutaka Tasaka
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Mitsuya Ishikawa
- Department of Gynecology, National Cancer Center Hospital, Tokyo, Japan
| | - Yasuyuki Hirashima
- Division of Gynecology, Shizuoka Cancer Center Hospital, Shizuoka, Japan
| | - Yuko Shimoji
- Department of Obstetrics and Gynecology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Mayuyo Mori
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takashi Iwata
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Fumiaki Takahashi
- Division of Medical Engineering, Department of Information Science, Iwate Medical University, Yahaba, Japan
| | - Hiroyuki Yoshikawa
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Koji Matsumoto
- Department of Obstetrics and Gynecology, Showa University School of Medicine, Tokyo, Japan
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Shibata H, Nomura Y, Kawakami T, Yamamoto E, Ando D, Uchiyama N, Tokumoto H, Koide T, Sakoda H, Yoshida H, Abe Y, Hakamatsuka T, Ikarashi Y, Haishima Y, Ishii-Watabe A, Izutsu KI, Honma M, Goda Y. [Investigation of Foreign Particles in Moderna COVID-19 Vaccine]. YAKUGAKU ZASSHI 2022; 142:867-874. [PMID: 35908947 DOI: 10.1248/yakushi.22-00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Particular batches of Moderna mRNA Coronavirus Disease 2019 (COVID-19) vaccine were recalled after foreign particles were found in some vaccine vials at the vaccination site in Japan in August 2021. We investigated the foreign particles at the request of the Ministry of Health, Labour and Welfare. Energy dispersive X-ray spectroscopy analysis suggested that the foreign particles found in the vials recalled from the vaccination sites were from stainless steel SUS 316L, which was in line with the findings of the root cause investigation by the manufacturer. The sizes of the observed particles ranged from <50 μm to 548 μm in the major axis. Similar foreign particles were also detected in 2 of the 5 vaccine vials of the same lot stored by the manufacturer, indicating that the foreign particles have already been administered to some people via vaccine. Observation of the vials of the same lot by digital microscope found smaller particles those were not detected by visual inspection, suggesting that more vials were affected. Contrarily, visual inspection and subvisible particulate matter test indicated no foreign particles in the vials of normal lots. Possible root cause and strategies to prevent such a deviation were discussed from technical and regulatory aspects.
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Sato H, Abd Rahman SA, Yamada Y, Ishii H, Yoshida H. Conduction band structure of high-mobility organic semiconductors and partially dressed polaron formation. Nat Mater 2022; 21:910-916. [PMID: 35851148 DOI: 10.1038/s41563-022-01308-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
The energy band structure provides crucial information on charge transport behaviour in organic semiconductors, such as effective mass, transfer integrals and electron-phonon coupling. Despite the discovery of the valence (the highest occupied molecular orbital (HOMO)) band structure in the 1990s, the conduction band (the lowest unoccupied molecular orbital (LUMO)) has not been experimentally observed. Here we employ angle-resolved low-energy inverse photoelectron spectroscopy to reveal the LUMO band structure of pentacene, a prototypical high-mobility organic semiconductor. The derived transfer integrals and bandwidths from the LUMO are substantially smaller than those predicted by density functional theory calculations. To reproduce this bandwidth reduction, we propose an improved (partially dressed) polaron model that accounts for the electron-intramolecular vibrational interaction with frequency-dependent coupling constants based on Debye relaxation. This model quantitatively reproduces not only the transfer integrals, but also the temperature-dependent HOMO and LUMO bandwidths, and the hole and electron mobilities. The present results demonstrate that electron mobility in high-mobility organic semiconductors is indeed limited by polaron formation.
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Affiliation(s)
- Haruki Sato
- Graduate School of Science and Engineering, Chiba University, Chiba, Japan
| | - Syed A Abd Rahman
- Graduate School of Science and Engineering, Chiba University, Chiba, Japan
| | - Yota Yamada
- Graduate School of Science and Engineering, Chiba University, Chiba, Japan
| | - Hiroyuki Ishii
- Department of Applied Physics, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan.
| | - Hiroyuki Yoshida
- Graduate School of Engineering, Chiba University, Chiba, Japan.
- Molecular Chirality Research Center, Chiba University, Chiba, Japan.
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Zhang T, Wang F, Kim HB, Choi IW, Wang C, Cho E, Konefal R, Puttisong Y, Terado K, Kobera L, Chen M, Yang M, Bai S, Yang B, Suo J, Yang SC, Liu X, Fu F, Yoshida H, Chen WM, Brus J, Coropceanu V, Hagfeldt A, Brédas JL, Fahlman M, Kim DS, Hu Z, Gao F. Ion-modulated radical doping of spiro-OMeTAD for more efficient and stable perovskite solar cells. Science 2022; 377:495-501. [PMID: 35901165 DOI: 10.1126/science.abo2757] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Record power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) have been obtained with the organic hole transporter 2,2',7,7'-tetrakis(N,N-di-p-methoxyphenyl-amine)9,9'-spirobifluorene (spiro-OMeTAD). Conventional doping of spiro-OMeTAD with hygroscopic lithium salts and volatile 4-tert-butylpyridine is a time-consuming process and also leads to poor device stability. We developed a new doping strategy for spiro-OMeTAD that avoids post-oxidation by using stable organic radicals as the dopant and ionic salts as the doping modulator (referred to as ion-modulated radical doping). We achieved PCEs of >25% and much-improved device stability under harsh conditions. The radicals provide hole polarons that instantly increase the conductivity and work function (WF), and ionic salts further modulate the WF by affecting the energetics of the hole polarons. This organic semiconductor doping strategy, which decouples conductivity and WF tunability, could inspire further optimization in other optoelectronic devices.
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Affiliation(s)
- Tiankai Zhang
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
| | - Feng Wang
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
| | - Hak-Beom Kim
- Korea Institute of Energy Research (KIER), Ulsan, Republic of Korea
| | - In-Woo Choi
- Korea Institute of Energy Research (KIER), Ulsan, Republic of Korea
| | - Chuanfei Wang
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Eunkyung Cho
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721, USA
| | - Rafal Konefal
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, 162 06 Prague 6, Czech Republic
| | - Yuttapoom Puttisong
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
| | - Kosuke Terado
- Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Libor Kobera
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, 162 06 Prague 6, Czech Republic
| | - Mengyun Chen
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
| | - Mei Yang
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
| | - Sai Bai
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
| | - Bowen Yang
- Laboratory of Photomolecular Science (LSPM), École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.,Department of Chemistry, Ångström Laboratory, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Jiajia Suo
- Laboratory of Photomolecular Science (LSPM), École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.,Department of Chemistry, Ångström Laboratory, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Shih-Chi Yang
- Laboratory for Thin Films and Photovoltaics, Empa-Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Duebendorf, Switzerland
| | - Xianjie Liu
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Fan Fu
- Laboratory for Thin Films and Photovoltaics, Empa-Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Duebendorf, Switzerland
| | - Hiroyuki Yoshida
- Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.,Molecular Chirality Research Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Weimin M Chen
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
| | - Jiri Brus
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, 162 06 Prague 6, Czech Republic
| | - Veaceslav Coropceanu
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721, USA
| | - Anders Hagfeldt
- Laboratory of Photomolecular Science (LSPM), École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.,Department of Chemistry, Ångström Laboratory, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Jean-Luc Brédas
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721, USA
| | - Mats Fahlman
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden
| | - Dong Suk Kim
- Korea Institute of Energy Research (KIER), Ulsan, Republic of Korea
| | - Zhangjun Hu
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
| | - Feng Gao
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden
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45
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Nakamura T, Yoshida H, Haneoka M, Nakamura S, Takahashi Y. Season- and facial site-specific skin changes due to long-term mask wearing during the COVID-19 pandemic. Skin Res Technol 2022; 28:749-758. [PMID: 35789503 PMCID: PMC9349579 DOI: 10.1111/srt.13196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 06/19/2022] [Indexed: 11/30/2022]
Abstract
Background As people have regularly worn facial masks due to the coronavirus disease 2019 (COVID‐19) pandemic, mask‐wear‐related adverse effects on the skin have been recognized. The aim of this study was to explore skin changes, their seasonal variations in the general population caused by commonly used masks and a possible mechanism underlying negative effects of mask‐wearing. Materials and methods Eighteen Japanese females participated in the study during summer and winter in Japan. Skin characteristics were measured in the non‐mask‐wearing preauricular area and the mask‐wearing cheek and perioral areas. Results Trans‐epidermal water loss (TEWL) on the cheek area tended to be increased in winter, which was positively correlated with skin scaliness on the same area. Ceramide (CER) content and composition in the mask‐covered stratum corneum (SC) were slightly changed between summer and winter, and CER [NP]/[NS] ratio was negatively correlated with the TEWL on the perioral skin in winter. Skin hydration and sebum secretion were higher on the cheek compared to the perioral area in summer. Skin redness was particularly high on the cheek in winter. Conclusion Mask‐wear‐related skin changes were season‐ and facial site‐specific, and alterations in SC CER may play a role in barrier‐related skin problems caused by mask use.
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Affiliation(s)
- Tomomi Nakamura
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - Hiroyuki Yoshida
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - Mai Haneoka
- Analytical Science Research, Kao Corporation, Ichikai-machi, Tochigi, Japan
| | - Shun Nakamura
- Analytical Science Research, Kao Corporation, Ichikai-machi, Tochigi, Japan
| | - Yoshito Takahashi
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
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46
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Iwami N, Komiya S, Asada Y, Tatsumi K, Habara T, Kuramoto T, Seki M, Yoshida H, Takeuchi K, Shiotani M, Mukaida T, Odawara Y, Mio Y, Kamiya H. P-384 Efficacy of endometrial microbiome metagenomic analysis with recurrent implantation failure and recurrent pregnancy loss: multicenter study in Japan. Hum Reprod 2022. [DOI: 10.1093/humrep/deac105.068] [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
Study question
Does the result of endometrial microbiome metagenomic analysis (EMMA), a next generation sequencing (NGS)-based test of the intrauterine microbiome, have an impact on pregnancy rate after the test?
Summary answer
After recommend treatment with antimicrobial and probiotic therapy, the group diagnosed as dysbiosis by EMMA achieved pregnancy significantly earlier than the group with Normal result.
What is known already
Using NGS technology, EMMA testing can determine the composition of the endometrial microbiome by analysing bacterial 16S ribosomal RNA with a focus on the lactobacillus population. Endometrial flora in patients undergoing in vitro fertilization (IVF) is often composed of pathogenic microorganisms which decrease implantation rates, such as the Enterobacteriaceae family, Staphylococcus spp., Escherichia coli and Gram-negative bacteria. Other studies also indicate that Lactobacillus spp. is a major microorganism in the endometrium. Especially, lactobacillus-dominated microbiota (LDM, defined as > 90% Lactobacillus spp.) in the endometrium has been reported to lead to better pregnancy outcomes than non-LDM (<90% Lactobacillus spp.).
Study design, size, duration
This study was a prospective, multicenter cohort study of 527 patients (under 42 years old) with recurrent implantation failure (RIF) and recurrent pregnancy loss (RPL) at 14 IVF treatment facilities in Japan from June 2019 to August 2021. Defining RIF as three or more failed implantation attempts and RPL as two or more miscarriages, we examined the prognosis of two additional embryo transfers (ETs) after the EMMA test in patients who underwent the test.
Participants/materials, setting, methods
Endometrial tissue was obtained by aspiration from patients in day 15-25 of their menstrual cycles, and sample tissues were analyzed by NGS for EMMA. Participant centers treated patients according to the therapies specified in the reports, including antibiotic treatments, probiotic treatments, re-analysis, and embryo transfer. Multivariate analysis was performed using a generalized linear model with the endpoint of ongoing pregnancy. For the time-to-event analyses, we used Kaplan-Meier survival analysis to compare time to ongoing pregnancy.
Main results and the role of chance
The results of the first EMMA were as follows: 229 patients (43.4%) were normal with Lactobacillus spp. >90% (Normal group), 110 patients (20.9%) were abnormal with less than 90% Lactobacillus spp. and predominantly pathogenic bacteria (Abnormal group), and 188 patients (35.7%) were mild with low absolute amounts of bacteria and ultralow biomass indicating almost sterile (Mild + Ultralow group). There were no significant differences in background factors such as age, duration of infertility, number of previous ETs, or history of deliveries among the three groups. Gardnerella was the most pathogenic bacteria detected in patients with Abnormal EMMA results. All patients in the Abnormal group were treated with antimicrobials and probiotics, and those in Mild + Ultralow group were treated with probiotics. Odds ratio for ongoing pregnancy rate was 1.10(95%CI 0.67-1.82, p = 0.699) in Abnormal group and 1.23(95%CI 0.80-1.89, p = 0.342) in Mild + Ultralow group, respectively. After the intervention, ongoing pregnancies were comparable to those in Normal group.Analysis of time to pregnancy using Kaplan-Meier survival curves showed that Abnormal group had a significantly higher rate of ongoing pregnancies during the observation period than the other groups (p = 0.031).
Limitations, reasons for caution
Since this study was not necessarily limited to euploid embryos transferred after testing, an aging bias cannot be excluded. Since this study was conducted with all patients receiving EMMA, the effectiveness of the test needs to be further validated by comparison to patients without EMMA testing.
Wider implications of the findings
This study is the first multicenter study to demonstrate that the intervention based on EMMA reports improve pregnancy outcome in the patients with RIF and RPL. We suggest that the EMMA procedure, which aims at establishing an appropriate uterine microbiome, may be important for implantation and pregnancy continuation.
Trial registration number
UMIN000036917
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Affiliation(s)
- N Iwami
- Kamiya Ladies Clinic, Center of reproduction , Sapporo, Japan
| | - S Komiya
- Horac IVF Grand Front Osaka Clinic, Center of reproduction , Osaka, Japan
| | - Y Asada
- Asada Ladies Clinic, Center of reproduction , Nagoya, Japan
| | - K Tatsumi
- Umegaoka Women’s Clinic, Center of reproduticion , Tokyo, Japan
| | - T Habara
- Okayama Couple's Clinic, Center of reproduction , Okayama, Japan
| | - T Kuramoto
- Kuramoto Women’s Clinic, Center of reproduction , Hukuoka, Japan
| | - M Seki
- Sekiel Ladies Clinic, Center of reproduction , Takasaki, Japan
| | - H Yoshida
- Sendai ART Clinic, Center of reproduction , Sendai, Japan
| | - K Takeuchi
- Takeuchi Ladies Clinic, Center of reproduction , Aira, Japan
| | - M Shiotani
- Hanabusa Women’s Clinic, Center of reproduction , Kobe, Japan
| | - T Mukaida
- Hiroshima HART Clinic, Center of reproduction , Hiroshima, Japan
| | - Y Odawara
- Fertility Clinic Tokyo, Center of reproduction , Tokyo, Japan
| | - Y Mio
- Mio Fertility Clinic, Center of reproduction , Yonago, Japan
| | - H Kamiya
- Kamiya Ladies Clinic, Center of reproduction , Sapporo, Japan
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Miura M, Shigemura K, Osawa K, Nakanishi N, Nomoto R, Onishi R, Yoshida H, Sawamura T, Fang SB, Chiang YT, Sung SY, Chen KC, Miyara T, Fujisawa M. Genetic characteristics of azithromycin-resistant Neisseria gonorrhoeae collected in Hyogo, Japan during 2015-2019. J Med Microbiol 2022; 71. [PMID: 35700110 DOI: 10.1099/jmm.0.001533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction. Azithromycin (AZM) is a therapeutic drug for sexually transmitted infections and is used for Neisseria gonorrhoeae when first- and second-line drugs are not available. Recently, the susceptibility of N. gonorrhoeae against AZM has been decreasing worldwide.Hypothesis/Gap Statement. Azithromycin-resistance (AZM-R) rates among N. gonorrhoeae in Japan are increasing, and the gene mutations and epidemiological characteristics of AZM-R in N. gonorrhoeae have not been fully investigated.Aim. We determined the susceptibility to AZM and its correlation with genetic characteristics of N. gonorrhoeae.Methodology. We investigated the susceptibility to AZM and genetic characteristics of N. gonorrhoeae. Mutations in domain V of the 23S rRNA gene and mtrR were examined in 93 isolates, including 13 AZM-R isolates. Spread and clonality were examined using sequence types (STs) of multi-antigen sequence typing for N. gonorrhoeae (NG-MAST), and whole genome analysis (WGA) to identify single nucleotide polymorphisms.Results. The number of AZM-R isolates increased gradually from 2015 to 2019 in Hyogo (P=0.008). C2599T mutations in 23S rRNA significantly increased in AZM-R isolates (P<0.001). NG-MAST ST4207 and ST6762 were frequently detected in AZM-R isolates, and they had higher MICs to AZM from 6 to 24 µg/ml. The phylogenic tree-based WGA showed that all isolates with ST4207 were contained in the same clade, and isolates with ST6762 were divided into two clades, AZM-S isolates and AZM-R isolates, which were different from the cluster containing ST1407.Conclusion. Our study showed yearly increases in AZM-R rates in N. gonorrhoeae. NG-MAST ST4207 and ST6762 were not detected in our previous study in 2015 and were frequently identified in isolates with higher MICs to AZM. WGA confirmed that isolates with these STs are closely related to each other. Continued surveillance is needed to detect the emergence and confirm the spread of NG-MAST ST4207 and ST6762.
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Affiliation(s)
- Makiko Miura
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka Suma-ku, Kobe, 654-0142, Japan.,Department of Medical Technology, Faculty of Health Sciences, Kobe Tokiwa University, 2-6-2 Otani-cho, Nagata-ku, Kobe, 653-0838, Japan
| | - Katsumi Shigemura
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka Suma-ku, Kobe, 654-0142, Japan.,Department of Urology, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Kayo Osawa
- Department of Medical Technology, Faculty of Health Sciences, Kobe Tokiwa University, 2-6-2 Otani-cho, Nagata-ku, Kobe, 653-0838, Japan
| | - Noriko Nakanishi
- Department of Infectious Diseases, Kobe Institute of Health, 4-6-5 Minatojima-nakamichi, Chuo-ku, Kobe, 650-0046, Japan
| | - Ryohei Nomoto
- Department of Infectious Diseases, Kobe Institute of Health, 4-6-5 Minatojima-nakamichi, Chuo-ku, Kobe, 650-0046, Japan
| | - Reo Onishi
- Department of Public Health, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka Suma-ku, Kobe, 654-0142, Japan
| | - Hiroyuki Yoshida
- Hyogo Clinical Laboratory Corporation, 5-6-2, Aoyamanishi, Himeji, 671-2224 Japan
| | - Toru Sawamura
- Department of Medical Technology, Faculty of Health Sciences, Kobe Tokiwa University, 2-6-2 Otani-cho, Nagata-ku, Kobe, 653-0838, Japan
| | - Shiuh-Bin Fang
- Division of Pediatric Gastroenterology and Hepatology, Department of Pediatrics, Shuang Ho Hospital, Taipei Medical University, 291 Jhong Jheng Road, Jhong Ho District, New Taipei City, 23561, Taiwan, ROC.,Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, 250, Wu Hsing Street, Hsin Yi District, Taipei, 11031, Taiwan, ROC
| | - Yi-Te Chiang
- Department of Urology, Taipei Medical University Shuang Ho Hospital, 291, Zhongzheng Rd, Zhonghe District, Taipei, 23561, Taiwan, ROC
| | - Shian-Ying Sung
- Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Hsing St., Taipei, 110, Taiwan, ROC
| | - Kuan-Cho Chen
- Department of Urology, Taipei Medical University Shuang Ho Hospital, 291, Zhongzheng Rd, Zhonghe District, Taipei, 23561, Taiwan, ROC
| | - Takayuki Miyara
- Department of Infection Control and Prevention, Kobe University Hospital, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Masato Fujisawa
- Department of Urology, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Matsui T, Matsumori T, Ito Y, Hase Y, Yoshida H. Visualizing Invisible Phase Transitions in Blue Phase Liquid Crystals Using Early Warning Indicators. Small 2022; 18:e2200113. [PMID: 35589386 DOI: 10.1002/smll.202200113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/13/2022] [Indexed: 06/15/2023]
Abstract
Changes in the statistical properties of data as a system approaches a critical transition is studied intensively as early warning signals, but their application to materials science, where phase transitions-a type of critical transition-are of fundamental importance, are limited. Here, a critical transition analysis is applied to time-series data from a microscopic 3D ordered soft material-blue phase liquid crystals (BPLC)-and demonstrates that phase transitions that are invisible under ambient conditions can be visualized through the choice of appropriate early warning indicators. After discussing how a phase transition affects the statistical properties in a system with a Landau-de Gennes type free energy potential, the predicted changes are experimentally observed at the two types of phase transitions that occur in a BPLC: the isotropic to simple cubic, and simple cubic to body-centered cubic transitions. In particular, it is shown that the skewness of the intensity distribution inverts its sign at the phase transition, enabling temporally and spatially resolved mapping of phase transitions. This approach can be easily adapted to a wide variety of material systems and microscopy techniques, providing a powerful tool for studying complex critical transition phenomena.
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Affiliation(s)
- Takayuki Matsui
- Toyota Central R&D Labs., Inc, 41-1 Yokomichi, Nagakute, Aichi, 480-1192, Japan
| | - Tadayoshi Matsumori
- Toyota Central R&D Labs., Inc, 41-1 Yokomichi, Nagakute, Aichi, 480-1192, Japan
| | - Yuji Ito
- Toyota Central R&D Labs., Inc, 41-1 Yokomichi, Nagakute, Aichi, 480-1192, Japan
| | - Yoko Hase
- Toyota Central R&D Labs., Inc, 41-1 Yokomichi, Nagakute, Aichi, 480-1192, Japan
| | - Hiroyuki Yoshida
- Division of Electrical, Electronic and Infocommunications Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
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49
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Zhang Y, Yoshida H, Chu F, Guo YQ, Yang Z, Ozaki M, Wang QH. Three-dimensional lattice deformation of blue phase liquid crystals under electrostriction. Soft Matter 2022; 18:3328-3334. [PMID: 35385566 DOI: 10.1039/d2sm00244b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this work, we investigate the three-dimensional lattice deformation of blue phase (BP) liquid crystals under electrostriction. Using the in situ measurement of light diffraction signals from a twinned crystal, we propose a method to experimentally determine the lattice constants of BPs under an electric field; the overlap angle in the diffraction pattern of BP twinning domains gives the ratio of lattice constants in the lateral direction of the field, which can be analyzed together with the Bragg reflection peak wavelength along the field direction to yield three-dimensional lattice constants. The obtained values are confirmed to show good agreement with the diffraction data measured from a converging monochromatic light. Furthermore, by applying the method to BPs in a thin cell and specifying the transitions of azimuthal orientation, three-dimensional lattice deformation of BP I crystals and evolution of the azimuthal orientation are clarified under the electrostriction. Results reveal that the BPs confined to thin films undergo discrete elongation along the field direction and the BP I crystal undergoes larger lattice deformation in the field-perpendicular directions than that along the field. Our work allows a relatively easy determination of three-dimensional lattice constants of deformed BP crystals under an electric field, and the obtained results provide important insights into the understanding of the electrostriction behaviour of BPs towards improvement of the electro-optical performance of BP devices in practical applications.
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Affiliation(s)
- Yuxian Zhang
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.
| | - Hiroyuki Yoshida
- Division of Electrical, Electronic and Infocommunications Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Fan Chu
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.
| | - Yu-Qiang Guo
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.
| | - Zhou Yang
- Department of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Masanori Ozaki
- Division of Electrical, Electronic and Infocommunications Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Qiong-Hua Wang
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.
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50
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Kimura F, Yamamura S, Fujiwara K, Yoshida H, Saito S, Kaneko A, Abe Y. Time-resolved 3D visualization of liquid jet breakup and impingement behavior in a shallow liquid pool. Nuclear Engineering and Design 2022. [DOI: 10.1016/j.nucengdes.2022.111660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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