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Matsumoto H, Yasuda I, Asano M, Todaka Y, Kawada T, Kawaguchi M, Hatanaka D, Hayashi M. Magnon-Phonon Coupling of Synthetic Antiferromagnets in a Surface Acoustic Wave Cavity Resonator. Nano Lett 2024. [PMID: 38661679 DOI: 10.1021/acs.nanolett.3c05070] [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] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
We used a surface acoustic wave (SAW) cavity resonator to study the coupling of acoustic magnons in a synthetic antiferromagnet (SAF) and phonons carried by SAWs. The SAF is composed of a CoFeB/Ru/CoFeB trilayer, and the scattering matrix of the SAW resonator is studied to assess the coupling. We find that the spectral line width of the SAW resonator is modulated when the frequency of the excited magnons approaches the SAW resonance frequency. Such a change in the spectral linewidth can be well reproduced using macrospin-like model calculations. From the model analyses, we estimate the magnon-phonon coupling strength to be ∼9.9 MHz at a SAW resonance frequency of 1.8 GHz: the corresponding magnomechanical cooperativity is ∼0.66. As the spectral shape hardly changes in a CoFeB single-layer reference sample, these results show that SAF provides an ideal platform to study magnon-phonon coupling in an SAW cavity resonator.
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Affiliation(s)
- Hiroki Matsumoto
- Department of Physics, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Isamu Yasuda
- Department of Physics, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Motoki Asano
- NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198, Japan
| | - Yasuhiro Todaka
- Department of Physics, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Takuya Kawada
- Department of Physics, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Masashi Kawaguchi
- Department of Physics, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Daiki Hatanaka
- NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198, Japan
| | - Masamitsu Hayashi
- Department of Physics, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
- Trans-Scale Quantum Science Institute (TSQS), The University of Tokyo, Hongo, Tokyo 113-0033, Japan
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Kuai H, Chen J, Tao X, Cai L, Imamura K, Matsumoto H, Liang P, Zhong N. Never-Ending Learning for Explainable Brain Computing. Adv Sci (Weinh) 2024:e2307647. [PMID: 38602432 DOI: 10.1002/advs.202307647] [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] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/24/2024] [Indexed: 04/12/2024]
Abstract
Exploring the nature of human intelligence and behavior is a longstanding pursuit in cognitive neuroscience, driven by the accumulation of knowledge, information, and data across various studies. However, achieving a unified and transparent interpretation of findings presents formidable challenges. In response, an explainable brain computing framework is proposed that employs the never-ending learning paradigm, integrating evidence combination and fusion computing within a Knowledge-Information-Data (KID) architecture. The framework supports continuous brain cognition investigation, utilizing joint knowledge-driven forward inference and data-driven reverse inference, bolstered by the pre-trained language modeling techniques and the human-in-the-loop mechanisms. In particular, it incorporates internal evidence learning through multi-task functional neuroimaging analyses and external evidence learning via topic modeling of published neuroimaging studies, all of which involve human interactions at different stages. Based on two case studies, the intricate uncertainty surrounding brain localization in human reasoning is revealed. The present study also highlights the potential of systematization to advance explainable brain computing, offering a finer-grained understanding of brain activity patterns related to human intelligence.
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Affiliation(s)
- Hongzhi Kuai
- Faculty of Engineering, Maebashi Institute of Technology, Gunma, 371-0816, Japan
- School of Psychology and Beijing Key Laboratory of Learning and Cognition, Capital Normal University, Beijing, 100048, China
| | - Jianhui Chen
- Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China
- Beijing International Collaboration Base on Brain Informatics and Wisdom Services, Beijing, 100124, China
| | - Xiaohui Tao
- School of Mathematics, Physics and Computing, University of Southern Queensland, Toowoomba, 4350, Australia
| | - Lingyun Cai
- School of Psychology and Beijing Key Laboratory of Learning and Cognition, Capital Normal University, Beijing, 100048, China
| | - Kazuyuki Imamura
- Faculty of Engineering, Maebashi Institute of Technology, Gunma, 371-0816, Japan
| | - Hiroki Matsumoto
- Faculty of Engineering, Maebashi Institute of Technology, Gunma, 371-0816, Japan
| | - Peipeng Liang
- School of Psychology and Beijing Key Laboratory of Learning and Cognition, Capital Normal University, Beijing, 100048, China
| | - Ning Zhong
- Faculty of Engineering, Maebashi Institute of Technology, Gunma, 371-0816, Japan
- School of Psychology and Beijing Key Laboratory of Learning and Cognition, Capital Normal University, Beijing, 100048, China
- Beijing International Collaboration Base on Brain Informatics and Wisdom Services, Beijing, 100124, China
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Matsumoto H, Dickson ME, Stephenson WJ, Thompson CF, Young AP. Modeling future cliff-front waves during sea level rise and implications for coastal cliff retreat rates. Sci Rep 2024; 14:7810. [PMID: 38565914 PMCID: PMC10987572 DOI: 10.1038/s41598-024-57923-0] [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: 12/07/2023] [Accepted: 03/22/2024] [Indexed: 04/04/2024] Open
Abstract
It is often assumed that future coastal cliff retreat rates will accelerate as global sea level rises, but few studies have investigated how SLR (sea level rise) might change cliff-front wave dynamics. Using a new simple numerical model, this study simulates the number and type (breaking, broken, or unbroken) of cliff-front waves under future SLR scenarios. Previous research shows breaking waves deliver more energy to cliffs than broken waves, and unbroken waves generate minimal impact. Here, we investigated six cliff-platform profiles from three regions (USA, New Zealand, and UK) with varied tidal ranges and wave climates. Model inputs included 2013-2100 hindcast/forecast incident wave height and tidal water level, and three future SLR scenarios. Results show the number of both cliff-front breaking and broken waves generally increase for a high-elevation (relative to tide) cliff-platform junction. In contrast, breaking/broken wave occurrence decrease by 38-92% for a near-horizontal shore platform with a low-elevation cliff-platform junction under a high SRL scenario, leading to high (96-97%) unbroken wave occurrence. Overall, results suggest the response of cliff-front waves to future SLR is complex and depends on shore platform geometries and SLR scenarios, indicating that future cliff retreat rates may not homogeneously accelerate under SLR.
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Affiliation(s)
- H Matsumoto
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA.
| | - M E Dickson
- The University of Auckland, Auckland, New Zealand
| | | | - C F Thompson
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
| | - A P Young
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
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Matsumoto H, Tokushige S, Takei Y, Uyama Y, Mura M, Hitomi G. [The Need for Lens Radiation Protection for Healthcare Provider in Open and Internal Fixation of the Hip Joint]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2024; 80:287-295. [PMID: 38296460 DOI: 10.6009/jjrt.2024-1422] [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: 03/22/2024]
Abstract
Increased occupational exposure of radiation workers is a major problem during open reduction and internal fixation (ORIF) of the hip joint, as the surgeon's eye lens is in close proximity to the patient and the X-ray tube. The purposes of this study were to clarify the occupational exposure of radiation workers during ORIF of the hip joint and to examine the need for radiation protection measures. The radiation exposure of radiation workers was evaluated by making an airborne dose distribution map using phantom experiments. The radiation goggles attached with a small optically stimulated luminescence dosimeter were used in clinical practice to measure the lens dose received by the surgeon, and the necessity of radiation goggles was examined. The airborne dose distribution in ORIF of the hip joint showed a wider area of high dose rate during axial fluoroscopy of the femoral neck than during posterior-anterior fluoroscopy. In axial fluoroscopy of the femoral neck, the surgeon was always in the high dose rate range of 10 µGy/min or higher, the nurses were in the dose rate range of 4 to 10 µGy/min, and the radiologic technologists were in the dose rate range of 0.5 µGy/min or lower. The maximum 3 mm dose equivalent to the surgeon per case was 0.38 mSv. In contradiction, radiation goggles were useful in ORIF because they provided approximately 60% shielding. It is advisable to work with radiation goggles to avoid cataracts.
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Affiliation(s)
- Hiroki Matsumoto
- Department of Radiological Technology, Kawasaki Medical School Hospital
| | - Shoya Tokushige
- Department of Radiological Technology, Kawasaki Medical School Hospital
| | - Yasutaka Takei
- Department of Radiological Technology, Kawasaki University of Medical Welfare
| | - Yuji Uyama
- Department of Radiological Technology, Kawasaki Medical School Hospital
| | - Masakatsu Mura
- Department of Radiological Technology, Kawasaki Medical School Hospital
| | - Go Hitomi
- Department of Radiological Technology, Kawasaki Medical School Hospital
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Yatsu S, Kasai T, Naito R, Matsumoto H, Murata A, Shitara J, Shiroshita N, Kato M, Kawana F, Sato A, Ishiwata S, Shimizu M, Kato T, Suda S, Hiki M, Minamino T. Impact of sleep-disordered breathing on overnight changes in arterial stiffness in patients with acute heart failure. Hypertens Res 2024; 47:342-351. [PMID: 37783770 DOI: 10.1038/s41440-023-01448-y] [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: 05/31/2023] [Revised: 08/25/2023] [Accepted: 08/31/2023] [Indexed: 10/04/2023]
Abstract
Overnight increases in arterial stiffness associated with sleep-disordered breathing may adversely affect patients with acute heart failure. Thus, we investigated overnight changes in arterial stiffness and their association with sleep-disordered breathing in patients hospitalized for acute heart failure. Consecutive patients with acute heart failure were enrolled. All participants underwent overnight full polysomnography following the initial improvement of acute signs and symptoms of acute heart failure. The arterial stiffness parameter, cardio-ankle vascular index (CAVI), was assessed before and after polysomnography. Overall, 60 patients (86.7% men) were analyzed. CAVI significantly increased overnight (from 8.4 ± 1.6 at night to 9.1 ± 1.7 in the morning, P < 0.001) in addition to systolic and diastolic blood pressure (from 114.1 mmHg to 121.6 mmHg, P < 0.001; and from 70.1 mmHg to 78.2 mmHg, P < 0.001, respectively). Overnight increase in CAVI (ΔCAVI ≥ 0) was observed in 42 patients (70%). The ΔCAVI ≥ 0 group was likely to have moderate-to-severe sleep-disordered breathing (i.e., apnea-hypopnea index ≥15, 55.6% vs 80.9%, P = 0.047) and greater obstructive respiratory events (29.4% vs 58.5%, P = 0.041). In multivariable analysis, moderate-to-severe sleep-disordered breathing and greater obstructive respiratory events were independently correlated with an overnight increase in CAVI (P = 0.033 and P = 0.042, respectively). In patients hospitalized for acute heart failure, arterial stiffness, as assessed by CAVI, significantly increased overnight. Moderate-to-severe sleep-disordered breathing and obstructive respiratory events may play an important role in the overnight increase in cardio-ankle vascular index.
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Affiliation(s)
- Shoichiro Yatsu
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
- Department of Cardiovascular Medicine, Juntendo University Shizuoka Hospital, Shizuoka, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan.
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
- Department of Cardiovascular Management and Remote Monitoring, Juntendo University Graduate School of Medicine, Tokyo, Japan.
- Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan.
| | - Ryo Naito
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroki Matsumoto
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Azusa Murata
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Jun Shitara
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
- Department of Cardiovascular Medicine, Juntendo University Shizuoka Hospital, Shizuoka, Japan
| | - Nanako Shiroshita
- Department of Cardiovascular Management and Remote Monitoring, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Mitsue Kato
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Fusae Kawana
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihiro Sato
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Sayaki Ishiwata
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Megumi Shimizu
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Takao Kato
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Shoko Suda
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Masaru Hiki
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University School of Medicine, Tokyo, Japan
- Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, Japan
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Jing C, Kuai H, Matsumoto H, Yamaguchi T, Liao IY, Wang S. Addiction-related brain networks identification via Graph Diffusion Reconstruction Network. Brain Inform 2024; 11:1. [PMID: 38190053 PMCID: PMC10774517 DOI: 10.1186/s40708-023-00216-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/13/2023] [Indexed: 01/09/2024] Open
Abstract
Functional magnetic resonance imaging (fMRI) provides insights into complex patterns of brain functional changes, making it a valuable tool for exploring addiction-related brain connectivity. However, effectively extracting addiction-related brain connectivity from fMRI data remains challenging due to the intricate and non-linear nature of brain connections. Therefore, this paper proposed the Graph Diffusion Reconstruction Network (GDRN), a novel framework designed to capture addiction-related brain connectivity from fMRI data acquired from addicted rats. The proposed GDRN incorporates a diffusion reconstruction module that effectively maintains the unity of data distribution by reconstructing the training samples, thereby enhancing the model's ability to reconstruct nicotine addiction-related brain networks. Experimental evaluations conducted on a nicotine addiction rat dataset demonstrate that the proposed GDRN effectively explores nicotine addiction-related brain connectivity. The findings suggest that the GDRN holds promise for uncovering and understanding the complex neural mechanisms underlying addiction using fMRI data.
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Affiliation(s)
- Changhong Jing
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Hongzhi Kuai
- Faculty of Engineering, Maebashi Institute of Technology, Maebashi, 371-0816, Japan
| | - Hiroki Matsumoto
- Faculty of Engineering, Maebashi Institute of Technology, Maebashi, 371-0816, Japan
| | | | - Iman Yi Liao
- University of Nottingham Malaysia Campus, Semenyih, Malaysia
| | - Shuqiang Wang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
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Shinada M, Suzuki H, Hanyu M, Igarashi C, Matsumoto H, Takahashi M, Hihara F, Tachibana T, Sogawa C, Zhang MR, Higashi T, Sato H, Kurihara H, Yoshii Y, Doi Y. Trace Metal Impurities Effects on the Formation of [ 64Cu]Cu-diacetyl-bis( N4-methylthiosemicarbazone) ([ 64Cu]Cu-ATSM). Pharmaceuticals (Basel) 2023; 17:10. [PMID: 38275997 PMCID: PMC10821298 DOI: 10.3390/ph17010010] [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: 11/15/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
[64Cu]Cu-diacetyl-bis(N4-methylthiosemicarbazone) ([64Cu]Cu-ATSM) is a radioactive hypoxia-targeting therapeutic agent being investigated in clinical trials for malignant brain tumors. For the quality management of [64Cu]Cu-ATSM, understanding trace metal impurities' effects on the chelate formation of 64Cu and ATSM is important. In this study, we conducted coordination chemistry studies on metal-ATSM complexes. First, the effects of nonradioactive metal ions (Cu2+, Ni2+, Zn2+, and Fe2+) on the formation of [64Cu]Cu-ATSM were evaluated. When the amount of Cu2+ or Ni2+ added was 1.2 mol or 288 mol, equivalent to ATSM, the labeling yield of [64Cu]Cu-ATSM fell below 90%. Little effect was observed even when excess amounts of Zn2+ or Fe2+ were added to the ATSM. Second, these metals were reacted with ATSM, and chelate formation was measured using ultraviolet-visible (UV-Vis) absorption spectra. UV-Vis spectra showed a rapid formation of Cu2+ and the ATSM complex upon mixing. The rate of chelate formation by Ni2+ and ATSM was lower than that by Cu-ATSM. Zn2+ and Fe2+ showed much slower reactions with the ATSM than Ni2+. Trace amounts of Ni2+, Zn2+, and Fe2+ showed little effect on [64Cu]Cu-ATSM' quality, while the concentration of impurity Cu2+ must be controlled. These results can provide process management tools for radiopharmaceuticals.
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Affiliation(s)
- Mitsuhiro Shinada
- Faculty of Science, Toho University, Funabashi 274-8510, Japan; (M.T.); (T.T.); (Y.D.)
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
- Kanagawa Cancer Center, Kanagawa 241-8515, Japan; (H.S.); (H.K.)
| | - Hisashi Suzuki
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
| | - Masayuki Hanyu
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
| | - Chika Igarashi
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
- Kanagawa Cancer Center, Kanagawa 241-8515, Japan; (H.S.); (H.K.)
| | - Hiroki Matsumoto
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
- Kanagawa Cancer Center, Kanagawa 241-8515, Japan; (H.S.); (H.K.)
| | - Masashi Takahashi
- Faculty of Science, Toho University, Funabashi 274-8510, Japan; (M.T.); (T.T.); (Y.D.)
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
| | - Fukiko Hihara
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
| | - Tomoko Tachibana
- Faculty of Science, Toho University, Funabashi 274-8510, Japan; (M.T.); (T.T.); (Y.D.)
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
| | - Chizuru Sogawa
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
| | - Ming-Rong Zhang
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
| | - Tatsuya Higashi
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
| | - Hidemitsu Sato
- Kanagawa Cancer Center, Kanagawa 241-8515, Japan; (H.S.); (H.K.)
| | - Hiroaki Kurihara
- Kanagawa Cancer Center, Kanagawa 241-8515, Japan; (H.S.); (H.K.)
| | - Yukie Yoshii
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.S.); (M.H.); (C.I.); (H.M.); (F.H.); (C.S.); (M.-R.Z.); (T.H.)
- Kanagawa Cancer Center, Kanagawa 241-8515, Japan; (H.S.); (H.K.)
| | - Yoshihiro Doi
- Faculty of Science, Toho University, Funabashi 274-8510, Japan; (M.T.); (T.T.); (Y.D.)
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Dickson ME, Matsumoto H, Stephenson WJ, Swirad ZM, Thompson CF, Young AP. Sea-level rise may not uniformly accelerate cliff erosion rates. Nat Commun 2023; 14:8485. [PMID: 38129403 PMCID: PMC10739881 DOI: 10.1038/s41467-023-44149-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023] Open
Affiliation(s)
- M E Dickson
- School of Environment, The University of Auckland, Auckland, New Zealand.
| | - H Matsumoto
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
| | - W J Stephenson
- School of Geography, University of Otago, Dunedin, New Zealand
| | - Z M Swirad
- Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland
| | - C F Thompson
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
| | - A P Young
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
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Tachibana T, Oyama TG, Yoshii Y, Hihara F, Igarashi C, Shinada M, Matsumoto H, Higashi T, Kishimoto T, Taguchi M. An In Vivo Dual-Observation Method to Monitor Tumor Mass and Tumor-Surface Blood Vessels for Developing Anti-Angiogenesis Agents against Submillimeter Tumors. Int J Mol Sci 2023; 24:17234. [PMID: 38139063 PMCID: PMC10743531 DOI: 10.3390/ijms242417234] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/20/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Managing metastasis at the early stage and detecting and treating submillimeter tumors at early metastasis are crucial for improving cancer prognosis. Angiogenesis is a critical target for developing drugs to detect and inhibit submillimeter tumor growth; however, drug development remains challenging because there are no suitable models for observing the submillimeter tumor mass and the surrounding blood vessels in vivo. We have established a xenograft subcutaneous submillimeter tumor mouse model with HT-29-RFP by transplanting a single spheroid grown on radiation-crosslinked gelatin hydrogel microwells. Here, we developed an in vivo dual-observation method to observe the submillimeter tumor mass and tumor-surface blood vessels using this model. RFP was detected to observe the tumor mass, and a fluorescent angiography agent FITC-dextran was administered to observe blood vessels via stereoscopic fluorescence microscopy. The anti-angiogenesis agent regorafenib was used to confirm the usefulness of this method. This method effectively detected the submillimeter tumor mass and tumor-surface blood vessels in vivo. Regorafenib treatment revealed tumor growth inhibition and angiogenesis downregulation with reduced vascular extremities, segments, and meshes. Further, we confirmed that tumor-surface blood vessel areas monitored using in vivo dual-observation correlated with intratumoral blood vessel areas observed via fluorescence microscopy with frozen sections. In conclusion, this method would be useful in developing anti-angiogenesis agents against submillimeter tumors.
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Affiliation(s)
- Tomoko Tachibana
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan; (F.H.); (C.I.); (M.S.); (H.M.); (T.H.)
- Faculty of Science, Toho University, Chiba 274-8510, Japan;
| | - Tomoko Gowa Oyama
- Foundational Quantum Technology Research Directorate, National Institutes for Quantum Science and Technology (QST), Gunma 370-1292, Japan; (T.G.O.); (M.T.)
| | - Yukie Yoshii
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan; (F.H.); (C.I.); (M.S.); (H.M.); (T.H.)
- Visible Cancer Drug Research Unit, National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan
| | - Fukiko Hihara
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan; (F.H.); (C.I.); (M.S.); (H.M.); (T.H.)
| | - Chika Igarashi
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan; (F.H.); (C.I.); (M.S.); (H.M.); (T.H.)
| | - Mitsuhiro Shinada
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan; (F.H.); (C.I.); (M.S.); (H.M.); (T.H.)
- Faculty of Science, Toho University, Chiba 274-8510, Japan;
| | - Hiroki Matsumoto
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan; (F.H.); (C.I.); (M.S.); (H.M.); (T.H.)
| | - Tatsuya Higashi
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan; (F.H.); (C.I.); (M.S.); (H.M.); (T.H.)
| | | | - Mitsumasa Taguchi
- Foundational Quantum Technology Research Directorate, National Institutes for Quantum Science and Technology (QST), Gunma 370-1292, Japan; (T.G.O.); (M.T.)
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10
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Kaiho T, Suzuki H, Hata A, Matsumoto H, Tanaka K, Sakairi Y, Motohashi S, Yoshino I. Targeting PD-1/PD-L1 inhibits rejection in a heterotopic tracheal allograft model of lung transplantation. Front Pharmacol 2023; 14:1298085. [PMID: 38026994 PMCID: PMC10657857 DOI: 10.3389/fphar.2023.1298085] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Immune checkpoint molecules such as programmed death-1 (PD-1) and programmed death ligand-1 (PD-L1) have revolutionized the field of lung cancer treatment. As part of our study, we examined the role of these proteins in acute rejection in a mouse model of heterotopic tracheal transplantation. Recipient mice were untreated (Allo group) or treated with anti-PD-L1 (aPDL1 group) or PD-L1 Fc recombinant protein (PD-L1 Fc group). A further group of C57BL/6 mice received isografts (Iso group). The occlusion rate was significantly higher in the Allo group than in the Iso group (p = 0.0075), and also higher in the aPD-L1 group (p = 0.0066) and lower in the PD-L1 Fc group (p = 0.030) than in the Allo group. PD-L1 Fc recombinant protein treatment significantly decreased interleukin-6 and interferon-γ levels and reduced the CD4+/CD8+ T cell ratio, without increasing PD-1 and T-cell immunoglobulin mucin 3 expression in CD4+ T cells. These data suggest that PD-L1 Fc recombinant protein decreases the levels of inflammatory cytokines and the proportion of CD4+ T cells without exhaustion. The PD-L1-mediated immune checkpoint mechanism was associated with rejection in the murine tracheal transplant model, suggesting a potential novel target for immunotherapy in lung transplantation.
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Affiliation(s)
- Taisuke Kaiho
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hidemi Suzuki
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Atsushi Hata
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hiroki Matsumoto
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Kazuhisa Tanaka
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yuichi Sakairi
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Shinichiro Motohashi
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
- Department of Medical Immunology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Ichiro Yoshino
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
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11
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Shimizu M, Naito R, Sato A, Ishiwata S, Yatsu S, Shitara J, Matsumoto H, Murata A, Kato T, Suda S, Hiki M, Kuwabara M, Murase T, Nakamura T, Kasai T. Diurnal Variations in Serum Uric Acid, Xanthine, and Xanthine Oxidoreductase Activity in Male Patients with Coronary Artery Disease. Nutrients 2023; 15:4480. [PMID: 37892555 PMCID: PMC10610187 DOI: 10.3390/nu15204480] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/01/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Hyperuricemia is influenced by diet and can cause gout. Whether it is a potential risk factor for cardiovascular disease (CVD) remains controversial, and the mechanism is unclear. Similar to CVDs, gout attacks occur more frequently in the morning and at night. A possible reason for this is the diurnal variation in uric acid (UA), However, scientific data regarding this variation in patients with CVD are not available. Thus, we aimed to investigate diurnal variations in serum levels of UA and plasma levels of xanthine, hypoxanthine, and xanthine oxidoreductase (XOR) activity, which were measured at 18:00, 6:00, and 12:00 in male patients with coronary artery disease. Thirty eligible patients participated in the study. UA and xanthine levels significantly increased from 18:00 to 6:00 but significantly decreased from 6:00 to 12:00. By contrast, XOR activity significantly increased both from 18:00 to 6:00 and 6:00 to 12:00. Furthermore, the rates of increase in UA and xanthine levels from night to morning were significantly and positively correlated. In conclusion, UA and xanthine showed similar diurnal variations, whereas XOR activity showed different diurnal variations. The morning UA surge could be due to UA production. The mechanism involved XOR activity, but other factors were also considered.
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Affiliation(s)
- Megumi Shimizu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
- Keiyu Orthopedic Spine and Joint Hospital, Tokyo 120-0015, Japan
| | - Ryo Naito
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Akihiro Sato
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Sayaki Ishiwata
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Shoichiro Yatsu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Jun Shitara
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Hiroki Matsumoto
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Azusa Murata
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Takao Kato
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Shoko Suda
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Masaru Hiki
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
| | - Masanari Kuwabara
- Intensive Care Unit and Department of Cardiology, Toranomon Hospital, Tokyo 105-8470, Japan;
| | - Takayo Murase
- Sanwa Kagaku Kenkyusho Co., Ltd., Inabe 511-0406, Japan; (T.M.); (T.N.)
| | - Takashi Nakamura
- Sanwa Kagaku Kenkyusho Co., Ltd., Inabe 511-0406, Japan; (T.M.); (T.N.)
| | - Takatoshi Kasai
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.S.); (A.S.); (S.I.); (S.Y.); (J.S.); (H.M.); (A.M.); (T.K.); (S.S.); (M.H.); (T.K.)
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
- Sleep and Sleep Disordered Breathing Center, Juntendo University Hospital, Tokyo 113-8431, Japan
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12
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Matsumoto H, Suzuki H, Yamanaka T, Kaiho T, Hata A, Inage T, Ito T, Kamata T, Tanaka K, Sakairi Y, Motohashi S, Yoshino I. Anti-CD20 Antibody and Calcineurin Inhibitor Combination Therapy Effectively Suppresses Antibody-Mediated Rejection in Murine Orthotopic Lung Transplantation. Life (Basel) 2023; 13:2042. [PMID: 37895424 PMCID: PMC10608275 DOI: 10.3390/life13102042] [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: 08/30/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Antibody-mediated rejection (AMR) is a risk factor for chronic lung allograft dysfunction, which impedes long-term survival after lung transplantation. There are no reports evaluating the efficacy of the single use of anti-CD20 antibodies (aCD20s) in addition to calcineurin inhibitors in preventing AMR. Thus, this study aimed to evaluate the efficacy of aCD20 treatment in a murine orthotopic lung transplantation model. Murine left lung transplantation was performed using a major alloantigen strain mismatch model (BALBc (H-2d) → C57BL/6 (BL/6) (H-2b)). There were four groups: isograft (BL/6→BL/6) (Iso control), no-medication (Allo control), cyclosporine A (CyA) treated, and CyA plus murine aCD20 (CyA+aCD20) treated groups. Severe neutrophil capillaritis, arteritis, and positive lung C4d staining were observed in the allograft model and CyA-only-treated groups. These findings were significantly improved in the CyA+aCD20 group compared with those in the Allo control and CyA groups. The B cell population in the spleen, lymph node, and graft lung as well as the levels of serum donor-specific IgM and interferon γ were significantly lower in the CyA+aCD20 group than in the CyA group. Calcineurin inhibitor-mediated immunosuppression combined with aCD20 therapy effectively suppressed AMR in lung transplantation by reducing donor-specific antibodies and complement activation.
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Affiliation(s)
- Hiroki Matsumoto
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (H.M.); (T.Y.); (T.K.); (T.I.); (K.T.); (Y.S.); (I.Y.)
- Department of Thoracic Surgery, Kimitsu Chuo Hospital, 1010 Sakurai, Kisarazu 292-8535, Japan
| | - Hidemi Suzuki
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (H.M.); (T.Y.); (T.K.); (T.I.); (K.T.); (Y.S.); (I.Y.)
| | - Takahiro Yamanaka
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (H.M.); (T.Y.); (T.K.); (T.I.); (K.T.); (Y.S.); (I.Y.)
| | - Taisuke Kaiho
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (H.M.); (T.Y.); (T.K.); (T.I.); (K.T.); (Y.S.); (I.Y.)
| | - Atsushi Hata
- Department of General Thoracic Surgery, Chiba Cancer Center, Chiba 260-8717, Japan; (A.H.); (T.I.)
| | - Terunaga Inage
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (H.M.); (T.Y.); (T.K.); (T.I.); (K.T.); (Y.S.); (I.Y.)
| | - Takamasa Ito
- Department of General Thoracic Surgery, Chiba Cancer Center, Chiba 260-8717, Japan; (A.H.); (T.I.)
| | - Toshiko Kamata
- Department of Thoracic Surgery, International University of Health and Welfare Atami Hospital, Shizuoka 413-0012, Japan;
| | - Kazuhisa Tanaka
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (H.M.); (T.Y.); (T.K.); (T.I.); (K.T.); (Y.S.); (I.Y.)
| | - Yuichi Sakairi
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (H.M.); (T.Y.); (T.K.); (T.I.); (K.T.); (Y.S.); (I.Y.)
| | - Shinichiro Motohashi
- Department of Medical Immunology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan;
| | - Ichiro Yoshino
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan; (H.M.); (T.Y.); (T.K.); (T.I.); (K.T.); (Y.S.); (I.Y.)
- Department of General Thoracic Surgery, International University of Health and Welfare Narita Hospital, Chiba 286-8520, Japan
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13
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Shimizu M, Kasai T, Naito R, Sato A, Ishiwata S, Yatsu S, Shitara J, Matsumoto H, Murata A, Kato T, Suda S, Hiki M, Kuwabara M, Murase T, Nakamura T, Daida H. Overnight changes in uric acid, xanthine oxidoreductase and oxidative stress levels and their relationships with sleep-disordered breathing in patients with coronary artery disease. Hypertens Res 2023; 46:2293-2301. [PMID: 37258622 DOI: 10.1038/s41440-023-01331-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 05/04/2023] [Accepted: 05/10/2023] [Indexed: 06/02/2023]
Abstract
Serum uric acid (UA) level is associated with the high cumulative incidence or prevalence of coronary artery disease (CAD), and hyperuricemia is considered as an independent risk marker for CAD. Sleep-disordered breathing (SDB) is also associated with an increased risk of CAD. Several studies have shown that SDB is associated with hyperuricemia, but the mechanisms are unclear. We measured serum levels of UA and xanthine oxidoreductase (XOR) activity and urinary levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG), all of which were assessed at 6 p.m. and the following 6 a.m. in males with CAD. In addition, nocturnal pulse oximetry was performed for the night. Overall 32 eligible patients with CAD were enrolled. Serum UA levels significantly increased overnight. (5.32 ± 0.98 mg/dl to 5.46 ± 1.02 mg/dl, p < 0.001) Moreover, XOR activity and urinary 8-OHdG levels significantly increased from 6 p.m. to 6 a.m. Furthermore, 3% Oxygen desaturation index (ODI) was correlated with the overnight changes in XOR activity (r = 0.36, P = 0.047) and urinary 8-OHdG levels (r = 0.41, P = 0.02). In addition, 3%ODI was independently correlated with the changes in XOR activity (correlation coefficient, 0.36; P = 0.047) and 8-OHdG (partial correlation coefficient, 0.63; P = 0.004) in multivariable analyses. SDB severity was associated with the overnight changes in XOR activity and urinary 8-OHdG, suggesting that SDB may be associated with oxidative stress via UA production. This trial is registered at University Hospital Medical Information Network (UMIN), number: UMIN000021624.
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Affiliation(s)
- Megumi Shimizu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
- Sleep and Sleep Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan.
| | - Ryo Naito
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihiro Sato
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Sayaki Ishiwata
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shoichiro Yatsu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Jun Shitara
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroki Matsumoto
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Azusa Murata
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takao Kato
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shoko Suda
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Masanari Kuwabara
- Intensive Care Unit and Department of Cardiology, Toranomon Hospital, Tokyo, Japan
| | | | | | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
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14
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Sato A, Matsumoto H, Kasai T. Home sleep apnea test for patients undergoing atrial fibrillation ablation: An alternative for polysomnography? J Arrhythm 2023; 39:799-800. [PMID: 37799790 PMCID: PMC10549861 DOI: 10.1002/joa3.12899] [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] [Received: 06/28/2023] [Accepted: 07/12/2023] [Indexed: 10/07/2023] Open
Affiliation(s)
- Akihiro Sato
- Department of Cardiovascular Biology and MedicineJuntendo University Graduate School of MedicineTokyoJapan
- Cardiovascular Respiratory Sleep MedicineJuntendo University Graduate School of MedicineTokyoJapan
| | - Hiroki Matsumoto
- Department of Cardiovascular Biology and MedicineJuntendo University Graduate School of MedicineTokyoJapan
| | - Takatoshi Kasai
- Department of Cardiovascular Biology and MedicineJuntendo University Graduate School of MedicineTokyoJapan
- Cardiovascular Respiratory Sleep MedicineJuntendo University Graduate School of MedicineTokyoJapan
- Sleep and Sleep‐Disordered Breathing CenterJuntendo University HospitalTokyoJapan
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15
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Yoshii Y, Matsumoto H, Igarashi C, Tachibana T, Hihara F, Shinada M, Waki A, Yoshida S, Naito K, Ito K, Higashi T, Kurihara H, Ueno M. Process to Remove the Size Variants Contained in the Antibody-Chelator Complex PCTA-NCAB001 for Radiolabeling with Copper-64. Pharmaceuticals (Basel) 2023; 16:1341. [PMID: 37895812 PMCID: PMC10610008 DOI: 10.3390/ph16101341] [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: 08/22/2023] [Revised: 09/15/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
Understanding the physicochemical properties of antibody-drug conjugates is critical to assess their quality at manufacturing and monitor them during subsequent storage. For radiometal-antibody complexes, it is important to control the properties of the antibody-chelator conjugate to maintain the quality of the final product. We have been developing 64Cu-labeled anti-epidermal growth factor receptor antibody NCAB001 (64Cu-NCAB001) for the early diagnosis and therapy of pancreatic cancer with positron-emission tomography. Here, we characterized the larger size variants contained in the antibody-chelator conjugate PCTA-NCAB001 by multi-angle light scattering coupled with size-exclusion chromatography. Secondly, we developed a chromatographic method to remove these size variants. Lastly, we demonstrated the stability of PCTA-NCAB001 after the removal of size variants. Dimer and oligomers were identified in PCTA-NCAB001. These larger size variants, together with some smaller size variants, could be removed by hydrophobic interaction chromatography. The PCTA-NCAB001 product, after the removal of these size variants, could be stored at 4 °C for six months. The methods developed here can be applied to assure the quality of PCTA-NCAB001 and other antibody-drug conjugates to facilitate the development of antibody-radiometal conjugates for positron-emission tomography and radioimmunotherapy of malignant cancers.
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Affiliation(s)
- Yukie Yoshii
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.M.); (C.I.); (T.T.); (F.H.); (M.S.); (A.W.); (T.H.)
- Department of Diagnostic Radiology, Kanagawa Cancer Center, Yokohama 241-8515, Japan;
| | - Hiroki Matsumoto
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.M.); (C.I.); (T.T.); (F.H.); (M.S.); (A.W.); (T.H.)
- Department of Diagnostic Radiology, Kanagawa Cancer Center, Yokohama 241-8515, Japan;
| | - Chika Igarashi
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.M.); (C.I.); (T.T.); (F.H.); (M.S.); (A.W.); (T.H.)
- Department of Diagnostic Radiology, Kanagawa Cancer Center, Yokohama 241-8515, Japan;
| | - Tomoko Tachibana
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.M.); (C.I.); (T.T.); (F.H.); (M.S.); (A.W.); (T.H.)
- Department of Biology, Graduate School of Science, Toho University, Chiba 274-8510, Japan
| | - Fukiko Hihara
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.M.); (C.I.); (T.T.); (F.H.); (M.S.); (A.W.); (T.H.)
| | - Mitsuhiro Shinada
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.M.); (C.I.); (T.T.); (F.H.); (M.S.); (A.W.); (T.H.)
- Department of Chemistry, Graduate School of Science, Toho University, Chiba 274-8510, Japan
| | - Atsuo Waki
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.M.); (C.I.); (T.T.); (F.H.); (M.S.); (A.W.); (T.H.)
| | - Sei Yoshida
- Department of Research, NanoCarrier Co., Ltd., Tokyo 104-0031, Japan; (S.Y.); (K.N.)
| | - Kenichiro Naito
- Department of Research, NanoCarrier Co., Ltd., Tokyo 104-0031, Japan; (S.Y.); (K.N.)
| | - Kimiteru Ito
- Department of Diagnostic Radiology, National Cancer Center Hospital, Tokyo 104-0045, Japan;
| | - Tatsuya Higashi
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan; (H.M.); (C.I.); (T.T.); (F.H.); (M.S.); (A.W.); (T.H.)
| | - Hiroaki Kurihara
- Department of Diagnostic Radiology, Kanagawa Cancer Center, Yokohama 241-8515, Japan;
| | - Makoto Ueno
- Department of Gastroenterology, Kanagawa Cancer Center, Yokohama 241-8515, Japan;
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16
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Ochi T, Suzuki H, Hirai Y, Yamanaka T, Matsumoto H, Kaiho T, Inage T, Ito T, Tanaka K, Sakairi Y, Yoshino I. Robot-assisted thoracic surgery versus video-assisted thoracic surgery for mediastinal lesions. J Thorac Dis 2023; 15:3840-3848. [PMID: 37559661 PMCID: PMC10407470 DOI: 10.21037/jtd-23-377] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/19/2023] [Indexed: 08/11/2023]
Abstract
BACKGROUND Robot-assisted thoracic surgery (RATS) has become widely used for mediastinal procedures since 2018 when it was included in insurance coverage in Japan. Few studies have compared the surgical outcomes of RATS with the more established video-assisted thoracic surgery (VATS) approach to mediastinal surgery. We aimed to compare the perioperative outcomes of VATS and RATS to examine the advantages of the RATS approach in a single institutional cohort. METHODS A total of 144 patients who underwent VATS and 46 who underwent RATS mediastinal surgery between 2014 and 2022 were enrolled. We compared clinicopathological features such as age, sex, smoking history, respiratory function, surgical field, laterality, surgical procedure, board certification of the surgeon, and histology between the two groups. Perioperative outcomes including operation time, volume of blood lost, number of conversion cases to open surgery, duration of chest drainage, postoperative hospital stay, and postoperative complications were also reviewed. RESULTS The comparison of patient characteristics between the groups showed significant differences in median age (VATS, 52.5 years; RATS, 67.0 years; P=0.001), combined resection of surrounding tissues of the tumor (VATS, 2.1%; RATS, 10.9%; P=0.02), board certification of the surgeon (VATS, 53.5%; RATS, 100.0%; P<0.001), and histology (RATS group had a higher percentage of thymic epithelial tumors, P=0.01). Regarding perioperative outcomes, the median operation time was 120 min in the VATS group and 88 min in the RATS group, showing a significant difference (P=0.03). There were no significant differences in the volume of blood lost, incidence of conversion to open chest surgery, duration of chest drainage, postoperative length of stay in hospital, and incidence of perioperative complications. In the perioperative outcomes of cases operated on by board-certified surgeons, the median operation time (VATS, 117 min; RATS, 88 min; P=0.02) and median postoperative length of stay in hospital (VATS, 7 days; RATS, 6 days; P=0.001) showed significant differences, while other postoperative outcomes were not significantly different. CONCLUSIONS RATS for mediastinal surgery is as safe as the VATS approach and may result in a shorter operative time and postoperative hospital stay. Further analysis of RATS for mediastinal surgery in a larger cohort is warranted.
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Affiliation(s)
| | | | - Yuki Hirai
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Takahiro Yamanaka
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hiroki Matsumoto
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Taisuke Kaiho
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Terunaga Inage
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Takamasa Ito
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Kazuhisa Tanaka
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yuichi Sakairi
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Ichiro Yoshino
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
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17
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Ochi T, Suzuki H, Hirai Y, Yamanaka T, Matsumoto H, Kaiho T, Inage T, Ito T, Tanaka K, Sakairi Y, Yoshino I. [Robot-assisted Thoracic Surgery for Mediastinal Tumor]. Kyobu Geka 2023; 76:512-517. [PMID: 37475093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
In Japan, robot-assisted thoracic surgery (RATS) was introduced in thoracic surgery in 2001, but it did not become widespread. However, surgery for mediastinal tumors and lobectomy for lung cancer with RATS were covered by insurance in 2018 and are currently becoming popular as a general practice, following video-assisted thoracic surgery(VATS). Forty-six patients with mediastinal tumors were treated by RATS from February 2014 to November 2022 in our institution. Theoretically, the RATS approach is performed from one side in a semi-supine position under CO2 insufflation as with the VATS approach of our institution. In the case of extended thymectomy, a bilateral approach is performed by changing the patient's position. The median surgery time was 88 min, and the median surgery time in unilateral and bilateral approaches were 79 and 208 min, respectively. Blood loss during surgery was quite minimum, and no patients required conversion to VATS or thoracotomy. Regarding adverse events, postoperative bleeding was observed in one patient (2.2%). RATS has been successfully introduced and expanded safely for mediastinal tumors. Considering further expansion of RATS indications while conducting verification by comparison with VATS in the future is necessary.
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Affiliation(s)
- Takahiro Ochi
- Department of General Thoracic Surgery, Chiba University, Chiba, Japan
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18
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Matsumoto H, Kasai T. Heart rate variability in obstructive sleep apnea patients with CPAP. Sleep Biol Rhythms 2023; 21:131-132. [PMID: 38469281 PMCID: PMC10899898 DOI: 10.1007/s41105-023-00455-3] [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: 02/25/2023]
Affiliation(s)
- Hiroki Matsumoto
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421 Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421 Japan
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan
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19
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Matsumoto H, Matsumoto N, Mori S, Hisaki I, Nakae T, Takase M, Uno H, Okujima T. Synthesis of cyclo[8]pyrrole--phosphonate complexes by anion exchange. J PORPHYR PHTHALOCYA 2023. [DOI: 10.1142/s1088424623500438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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20
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Matsumoto H, Takei Y, Matsuda E, Masuda T. [Measurement of the Lens Dose for Radiological Technologists during Mobile Radiography]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2023; 79:38-45. [PMID: 36418072 DOI: 10.6009/jjrt.2023-1295] [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: 11/25/2022]
Abstract
The radiological technologists often assist patients near the X-ray area during mobile radiography. Therefore, it is expected that the lens of eye of radiological technologists is exposed to much radiation. The purposes of this study were to measure the lens dose received by radiological technologists during mobile radiography using radiation protection goggles with a personal dosimeter and a small optically stimulated luminescence dosimeter and discuss the need for radiation protection goggles and additional radiation protection measures. From October 2017 to March 2018, lens doses were measured for eight radiological technologists during mobile radiography using radiation protection goggles with a small optically stimulated luminescence dosimeter and a personal dosimeter. The maximum value of the lens dose received by radiological technologists in mobile radiography was 0.3 mSv per month with a personal dosimeter attached to the neck. The dose-reduction effect of radiation protection glasses during mobile radiography was about 45%. The radiation protection goggles are effective for reducing radiation exposure of lens of eye during mobile radiography. Since there is concern about an increase in lens dose, it is desirable to use the radiation protection goggles for reducing the lens of eye exposure.
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Affiliation(s)
- Hiroki Matsumoto
- Department of Radiological Technology, Kawasaki Medical School Hospital
| | - Yasutaka Takei
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
| | - Eiji Matsuda
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
| | - Takanori Masuda
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
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21
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Amamoto R, Shimamoto K, Suwa T, Park S, Matsumoto H, Shimizu K, Katto M, Makino H, Matsubara S, Aoyagi Y. Relationships between dietary diversity and gut microbial diversity in the elderly. Benef Microbes 2022; 13:453-464. [PMID: 36377581 DOI: 10.3920/bm2022.0054] [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: 11/16/2022]
Abstract
Diet is considered as a major driver of gut microbiota composition. However, little is known about the relationship between overall dietary balance and gut microbiota, especially in the elderly. Here, using the Quantitative Index for Dietary Diversity (QUANTIDD), we analysed the relationships between dietary diversity and gut microbiota diversity in 445 Japanese subjects aged 65-90 years. We also examined the effect of age by comparing the young-old group aged 65 to 74 years (<75 years group; n=246) and the old-old group aged 75 years and older (≥75 years group; n=199). QUANTIDD showed significant positive relationships with Pielou's evenness and Shannon indices, two α-diversity indices related to the uniformity of species distribution. This suggests that a more diverse diet is associated with a more uniform abundance of various bacterial groups, rather than a greater variety of gut bacteria. QUANTIDD also showed significant positive associations with the abundance of Anaerostipes, Eubacterium eligens group, and Eubacterium ventriosum group, which produce short-chain fatty acids (SCFAs) and are beneficial to health. Negative association was found with the abundance of Ruminococcus gnavus group, which produces inflammatory polysaccharides. Positive associations between QUANTIDD and α-diversity indices or the abundance of specific bacterial groups were identified among all subjects and in the <75 years group, but not in the ≥75 years group. Our results suggest that dietary diversity contributes to the diversity of the gut microbiota and increases the abundance of SCFAs-producing bacteria, but only up to a certain age. These findings help to understand the complex relationship between diet and gut microbiota, and provide hints for specific dietary interventions to promote beneficial gut microbiota in the elderly.
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Affiliation(s)
- R Amamoto
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K Shimamoto
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - T Suwa
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - S Park
- Exercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
| | - H Matsumoto
- Microbiological Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K Shimizu
- Basic Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - M Katto
- Basic Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - H Makino
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - S Matsubara
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Y Aoyagi
- Exercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
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22
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Yoshii Y, Hihara F, Matsumoto H, Igarashi C, Tachibana T, Shinada M, Ming-Rong Z, Oshima A, Sato H, Narita Y, Kurihara H, Yamamoto T, Higashi T, Tateishi K. ET-7 EVALUATION OF HYPOXIA-TARGETING RADIOPHARMACEUTICAL64CU-ATSM FOR PET MONITORING WITH LOCAL THERAPY IN HIGH-GRADE GLIOMA MODEL. Neurooncol Adv 2022. [DOI: 10.1093/noajnl/vdac167.019] [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: 12/05/2022] Open
Abstract
Abstract
World Health Organization (WHO)-defined central nervous system (CNS) grade 4 high-grade gliomas (HGGs) are highly aggressive brain cancers characterized by the presence of hypoxia within a rapidly-growing tumor mass. Due to invasion to the surrounding brain parenchyma, these tumors commonly recur locally, despite aggressive surgical resection, and new therapeutic approaches are required for local tumor control. Here, we show a positron emission tomography (PET) integrated local therapy (PETx), to target HGGs. This technique consists of a one-step local theranostic application, followed by PET monitoring, with a hypoxia-targeting radiopharmaceutical 64Cu-diacetyl-bis (N4-methylthiosemicarbazone) (64Cu-ATSM). We examined the safety and therapeutic potential of 64Cu-ATSM PETx for HGG patient-derived xenograft (PDX) tumors, which recapitulated the parent tumor phenotype of high expression of hypoxia-inducible factor-1α and BNIP3, biomarkers of tissue hypoxia. Biodistribution, dosimetry, and toxicity studies of 64Cu-ATSM local administration determined the maximum tolerated dose (MTD) to be 3.7 MBq in mouse. PETx using the MTD dose of 64Cu-ATSM indicated high tumor penetration, distribution, and retention of 64Cu-ATSM in PDX tumors, as compared to sham-treated mice. The 64Cu-ATSM PETx promoted DNA double-strand breaks, followed by apoptosis in tumors, and extensively prolonged overall survival with tolerable systemic toxicity. These findings indicate the potential of 64Cu-ATSM PETx to induce high uptake in the hypoxic tumor microenvironment, and strong therapeutic effects in PDX models. These findings establish 64Cu-ATSM PETx as a potential novel theranostic approach to facilitate local control of WHO CNS grade 4 HGGs.
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Affiliation(s)
- Yukie Yoshii
- National Institutes for Quantum Science and Technology , Chiba , Japan
| | - Fukiko Hihara
- National Institutes for Quantum Science and Technology , Chiba , Japan
| | - Hiroki Matsumoto
- National Institutes for Quantum Science and Technology , Chiba , Japan
| | - Chika Igarashi
- National Institutes for Quantum Science and Technology , Chiba , Japan
| | - Tomoko Tachibana
- National Institutes for Quantum Science and Technology , Chiba , Japan
| | - Mitsuhiro Shinada
- National Institutes for Quantum Science and Technology , Chiba , Japan
| | - Zhang Ming-Rong
- National Institutes for Quantum Science and Technology , Chiba , Japan
| | - Akito Oshima
- Department of Neurosurgery, Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Hidemitsu Sato
- Department of Neurosurgery, Kanagawa Cancer Center , Yokohama , Japan
| | - Yoshitaka Narita
- Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital , Tokyo , Japan
| | - Hiroaki Kurihara
- Department of Radiology and IVR, Kanagawa Cancer Center , Yokohama , Japan
| | - Tetsuya Yamamoto
- Department of Neurosurgery, Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Tatsuya Higashi
- National Institutes for Quantum Science and Technology , Chiba , Japan
| | - Kensuke Tateishi
- Department of Neurosurgery, Yokohama City University Graduate School of Medicine , Yokohama , Japan
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23
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Oishi Y, Tsujita H, Arai T, Sakai R, Sato S, Tanaka H, Ogura K, Masaki R, Kondo S, Tsukamoto S, Higuchi S, Sumida A, Matsumoto H, Shinke T. The vascular response to ultrathin biodegradable polymer sirolimus-eluting stent at 2-weeks and 1-year follow up in patients with ST-elevation myocardial infarction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Recent clinical study suggests newer-generation drug-eluting stents (DES) that combine ultrathin strut and nano-coating with biodegradable polymers sirolimus-eluting stent (BP-SES) could improve long-term clinical outcomes in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) over current generation DES. However, the details of vascular response in very early and chronic phase have not been systematically addressed.
Objective and method
We exploratory investigate early and chronic vascular response following BP-SES implantation in patients with STEMI to reveal mechanism of the favorable clinical outcomes in recent studies using frequency domain-optical coherence tomography (FD-OCT).
Consecutive twenty-four patients with STEMI who underwent FD-OCT after primary PCI and were eligible for follow-up FD-OCT at 2 weeks and 1 year after implantation were enrolled between June 2018 and August 2020.
OCT was performed immediately after PCI, at 2-weeks (2W) and 1-year (1Y) after the primary PCI. Struts were recorded as uncovered if any part was visibly exposed in the lumen or covered if a layer of tissue covered all reflecting surfaces. Struts of stents that are smaller than 3.0mm of diameter with more than 80μm between the center reflection and the adjacent vessel surface were recorded as malapposed. The reduction of atherothrombotic protrusion burden within the stent was also assessed.
Results
Twenty-four patients (age 64.9±11.4 years, male 83.3%) were enrolled.
The percentage of uncovered struts significantly decreased from post-PCI to 2W follow-up and from 2W follow-up to 1Y follow-up (62±20% post-PCI versus 27±11% at 2W follow up, p<0.0001 and 2W follow-up versus 3.3±3.3% at 1Y follow up, p<0.0001). Malapposed struts also decreased from post-PCI to 2W follow-up (4.1±3.6% post-PCI versus 1.5±2.2% at 2W follow-up, p<0.0001), but no significant difference was shown between 2W follow-up and 1Y follow-up (2W follow-up versus 1.0±2.3 at 1Y follow up, p=0.12). The average protrusion area of athero-thrombotic burden decreased (0.57±0.32 at post-PCI versus 0.42±0.22 mm2 at 2W follow up, p<0.0001) and its volume showed similar tendency (16.6±10.7 at post-PCI versus 12.9±8.23 mm3 at 2W follow up, p=0.0011). Thrombus was shown in all patients at post-PCI, but two patients (8.0%) showed it at 1Y follow-up.
Conclusion(s)
This study elucidated very early and chronic vascular responses following ultrathin strut BP-SES implantation in STEMI patients by FD-OCT. It showed resolution of athero-thrombotic materials in very early phase and favorable progression of strut coverage in very early and chronic phase.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Oishi
- Showa University Hospital , Tokyo , Japan
| | - H Tsujita
- Showa University Hospital , Tokyo , Japan
| | - T Arai
- Showa University Hospital , Tokyo , Japan
| | - R Sakai
- Showa University Hospital , Tokyo , Japan
| | - S Sato
- Showa University Hospital , Tokyo , Japan
| | - H Tanaka
- Showa University Hospital , Tokyo , Japan
| | - K Ogura
- Showa University Hospital , Tokyo , Japan
| | - R Masaki
- Showa University Hospital , Tokyo , Japan
| | - S Kondo
- Showa University Hospital , Tokyo , Japan
| | | | - S Higuchi
- Showa University Hospital , Tokyo , Japan
| | - A Sumida
- Showa University Hospital , Tokyo , Japan
| | | | - T Shinke
- Showa University Hospital , Tokyo , Japan
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24
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Matsumoto H, Kida H, Nakanishi R, Miyoshi M. Usefulness of the synthesized 18-lead ECG in identify the origin of premature ventricular contractions. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
There are have been reports on the 12-lead ECG waveforms used to identify ventricular premature contractions (VPCs), but there are not enough algorithms. On the other hand, the synthesized 18-lead ECG adds the right-side chest leads (V3R, V4R, and V5R) and back leads (V7, V8, and V9) to the 12-lead ECG.
Purpose
This aim of this study was to evaluate whether the waveforms of the 18-lead ECG are useful in predicting the origin of VPCs.
Methods
We studied 86 consecutive patients (age :61.8±16.0 years, male: 54.5%) enrolled from multicenter who underwent radiofrequency catheter ablation for VPCs. We retrospectively investigated the association between origin of the VPCs and characteristics of the synthetic 18-leads ECG.
Results
The 18-lead ECG showed a specific pattern for the VPC originating near the His-bundle. In 17 cases, the QRS morphology in V5R exhibited a QS pattern, and 13 of 17 cases had VPCs originating near the His-bundle. In the other 69 cases, V5R did not exhibit a QS pattern. ROC curve analysis showed that the QS pattern in V5R predicted VPC originating near the His-bundle with high accuracy: sensitivity 100.0%, specificity 94.5%, and AUC 0.98. Furthermore, the positive predictive value was 76.5% and negative predictive value 100.0%.
Conclusion
The QS pattern shown in V5R of the 18-lead ECG was a useful parameter for identifying VPCs originating near the His-bundle, which might be a good reference indicator during radiofrequency catheter ablation for VPCs.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- H Matsumoto
- Japan Community Healthcare Organization Osaka Hospital, Department of Clinical Engineering , Osaka , Japan
| | - H Kida
- Osaka General Medical Center, Department of Clinical Engineer , Osaka , Japan
| | - R Nakanishi
- Nara Prefectural Seiwa Medical Center, Department of Clinical Engineer , Nara , Japan
| | - M Miyoshi
- Japan Community Healthcare Organization Osaka Hospital, Department of Cardiology , Osaka , Japan
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25
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Sato Y, Fujiwara S, Hata A, Kida Y, Masuda T, Amimoto H, Matsumoto H, Miyoshi K, Otsuka K, Tomii K. 1545P A multicenter prospective observational study of pre-existing autoantibodies in patients with small cell lung cancer treated with ICI. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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26
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Sato Y, Sumikawa H, Shibaki R, Morimoto T, Sakata Y, Oya Y, Tamiya M, Suzuki H, Matsumoto H, Kijima T, Hashimoto K, Kobe H, Hino A, Inaba M, Tsukita Y, Ikeda H, Arai D, Maruyama H, Sakata S, Fujimoto D. 1103P Drug-related pneumonitis induced by osimertinib as first-line treatment for EGFR-positive non-small cell lung cancer: A real-world setting. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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27
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Hihara F, Matsumoto H, Yoshimoto M, Masuko T, Endo Y, Igarashi C, Tachibana T, Shinada M, Zhang MR, Kurosawa G, Sugyo A, Tsuji AB, Higashi T, Kurihara H, Ueno M, Yoshii Y. In Vitro Tumor Cell-Binding Assay to Select High-Binding Antibody and Predict Therapy Response for Personalized 64Cu-Intraperitoneal Radioimmunotherapy against Peritoneal Dissemination of Pancreatic Cancer: A Feasibility Study. Int J Mol Sci 2022; 23:5807. [PMID: 35628616 PMCID: PMC9146758 DOI: 10.3390/ijms23105807] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/12/2022] [Accepted: 05/19/2022] [Indexed: 02/01/2023] Open
Abstract
Peritoneal dissemination of pancreatic cancer has a poor prognosis. We have reported that intraperitoneal radioimmunotherapy using a 64Cu-labeled antibody (64Cu-ipRIT) is a promising adjuvant therapy option to prevent this complication. To achieve personalized 64Cu-ipRIT, we developed a new in vitro tumor cell-binding assay (64Cu-TuBA) system with a panel containing nine candidate 64Cu-labeled antibodies targeting seven antigens (EGFR, HER2, HER3, TfR, EpCAM, LAT1, and CD98), which are reportedly overexpressed in patients with pancreatic cancer. We investigated the feasibility of 64Cu-TuBA to select the highest-binding antibody for individual cancer cell lines and predict the treatment response in vivo for 64Cu-ipRIT. 64Cu-TuBA was performed using six human pancreatic cancer cell lines. For three cell lines, an in vivo treatment study was performed with 64Cu-ipRIT using high-, middle-, or low-binding antibodies in each peritoneal dissemination mouse model. The high-binding antibodies significantly prolonged survival in each mouse model, while low-and middle-binding antibodies were ineffective. There was a correlation between in vitro cell binding and in vivo therapeutic efficacy. Our findings suggest that 64Cu-TuBA can be used for patient selection to enable personalized 64Cu-ipRIT. Tumor cells isolated from surgically resected tumor tissues would be suitable for analysis with the 64Cu-TuBA system in future clinical studies.
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Affiliation(s)
- Fukiko Hihara
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
| | - Hiroki Matsumoto
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
- Department of Diagnostic Radiology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan;
| | - Mitsuyoshi Yoshimoto
- Division of Functional Imaging, National Cancer Center Hospital East, Chiba 277-8577, Japan;
| | - Takashi Masuko
- School of Pharmacy, Kindai University, Osaka 577-8502, Japan; (T.M.); (Y.E.)
| | - Yuichi Endo
- School of Pharmacy, Kindai University, Osaka 577-8502, Japan; (T.M.); (Y.E.)
| | - Chika Igarashi
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
| | - Tomoko Tachibana
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
| | - Mitsuhiro Shinada
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
- Faculty of Science, Toho University, Chiba 274-8510, Japan
| | - Ming-Rong Zhang
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
| | - Gene Kurosawa
- International Center for Cell and Gene Therapy, Fujita Health University, Aichi 470-1192, Japan;
| | - Aya Sugyo
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
| | - Atsushi B. Tsuji
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
| | - Tatsuya Higashi
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
| | - Hiroaki Kurihara
- Department of Diagnostic Radiology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan;
| | - Makoto Ueno
- Department of Gastroenterology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan;
| | - Yukie Yoshii
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum Science and Technology, Chiba 263-8555, Japan;
(F.H.); (H.M.); (C.I.); (T.T.); (M.S.); (M.-R.Z.); (A.S.); (A.B.T.); (T.H.)
- Department of Diagnostic Radiology, Kanagawa Cancer Center, Kanagawa 241-8515, Japan;
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28
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Suzuki H, Hata A, Yamanaka T, Matsumoto H, Kaiho T, Shiina Y, Toyoda T, Ito T, Inage T, Tanaka K, Sakairi Y, Wada H, Iwata T, Motohashi S, Yoshida S, Yoshino I. [The Basic Research of Antigen-antibody Reaction in Lung Transplantation]. Kyobu Geka 2022; 75:244-251. [PMID: 35342153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Lung transplantation has become popular in Japan, showing better survival rate than other countries. However, the results are still not satisfactory compared with other solid organ transplantation. One of the reasons for this might be that knowledge on donor-specific antibodies or antibody-related rejection, which has been attracting attention these days, is less than that of kidney or liver transplantation. Our laboratory has continued basic research in this field using rodent lung transplantation model. We have previously shown that type V collagen is associated in chronic rejection as an autoimmune, and that oral administration of type V collagen induces tolerance. The murine chronic rejection model of the minor antigen mismatch was developed, and involvement of the humoral immunity and role of the complement activation were shown. We are now studying the effects of immune checkpoint molecules, which play a central role in the field of cancer therapy, on rejection after lung transplantation. We are also working to verify the effects of anti-complement drugs and molecular targeted drugs in the future treatment on rejection.
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Affiliation(s)
- Hidemi Suzuki
- Department of General Thoracic Surgery, Chiba University, Chiba, Japan
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Yatsu S, Kasai T, Matsumoto H, Shitara J, Murata A, Suda S, Sato A, Ishiwata S, Shimizu M, Kato T, Hiki M, Naito R, Daida H. IMPACT OF SLEEP DISORDERED BREATHING ON OVERNIGHT CHANGES OF ATRIAL STIFFNESS IN PATIENTS WITH HEART FAILURE. J Am Coll Cardiol 2022. [DOI: 10.1016/s0735-1097(22)01372-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Lin HC, Tsai JW, Tada K, Matsumoto H, Chiu CY, Nakayama K. The impacts of the hydraulic retention effect and typhoon disturbance on the carbon flux in shallow subtropical mountain lakes. Sci Total Environ 2022; 803:150044. [PMID: 34525696 DOI: 10.1016/j.scitotenv.2021.150044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/12/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
A typhoon is extreme weather that flushes terrestrial carbon (C) loads and temporally mixes the entire water columns of lakes in subtropical regions. A C flux varies based on the trophic level associated with the ecological cycle related to hydraulic retention time (residence time). Herein, we sought to clarify how the hydraulic retention time and the disturbance from a typhoon affect the C flux regimes in two subtropical mountain lakes in a humid region of Taiwan with different trophic levels-oligotrophic and mesotrophic. We investigated the meteorological data and vertical profiles of the water temperature, dissolved inorganic carbon (DIC), dissolved organic C (DOC), and chlorophyll a (Chl. a) during the pre-typhoon period (April-July), during the typhoon period (August-November), and the post-typhoon period (December-March) for five years (2009-2010 and 2015-2017). We applied a three-dimensional environmental model (Fantom) to investigate the hydraulic retention effect on the net ecosystem production (NEP) using the residence time in stratified lakes. The results demonstrate that typhoon-induced mixing associated with the hydraulic retention effect plays one of the critical roles in controlling the NEP and C flux in shallow subtropical lakes.
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Affiliation(s)
- Hao-Chi Lin
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-Cho, Nada-Ku, Kobe 658-8501, Japan
| | - Jeng-Wei Tsai
- Department of Biological Science and Technology, China Medical University, No. 100, Sec. 1, Jingmao Rd., Beitun Dist., Taichung City 406040, Taiwan
| | - Kazufumi Tada
- Chuden Engineering Consultants, 2-3-30 Deshio, Minami-Ku, Hiroshima 734-8510, Japan
| | - Hiroki Matsumoto
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-Cho, Nada-Ku, Kobe 658-8501, Japan
| | - Chih-Yu Chiu
- Biodiversity Research Center, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan.
| | - Keisuke Nakayama
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-Cho, Nada-Ku, Kobe 658-8501, Japan.
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31
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Takase M, Ueno A, Oki K, Matsumoto H, Mori S, Okujima T, Uno H. Tropo(thio)ne-Embedded HomoHPHACs: Does the Tropylium Cation Induce Global Antiaromaticity in Expanded Hexapyrrolohexaazacoronene? Chem Commun (Camb) 2022; 58:3366-3369. [DOI: 10.1039/d1cc07152a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tropo(thio)ne-embedded homoHPHACs and their dications were synthesised by an electrophilic annulation of secoHPHAC and successive oxidation. 13C NMR spectra of the dications represented global 22π homoaromaticity via homoconjugation, while alkylation...
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32
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Ishiwata S, Kasai T, Sato A, Suda S, Matsumoto H, Shitara J, Yatsu S, Murata A, Shimizu M, Kato T, Hiki M, Matsue Y, Naito R, Daida H, Minamino T. Prognostic effect of sleep-disordered breathing on hospitalized patients following acute heart failure. Clin Res Cardiol 2021; 111:663-672. [PMID: 34761310 DOI: 10.1007/s00392-021-01969-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 11/02/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Identifying patients at risk for poor clinical outcomes following acute heart failure (AHF) is essential. However, data regarding the prognostic effect of sleep-disordered breathing (SDB) and treatment with positive airway pressure (PAP) on clinical outcomes of hospitalized patients following AHF is lacking. OBJECTIVES This study investigated the prognostic effect of SDB, PAP treatment, and compliance with PAP treatment on patient clinical outcomes. Polysomnography was performed in hospitalized patients whose left ventricular ejection fraction was < 50%. Patients were divided into groups based on whether SDB was defined as an apnea-hypopnea index ≥ 15 and if they had received PAP treatment. Furthermore, patients with SDB and PAP were subdivided into more and less compliant groups. We assessed the incidences of deaths and rehospitalizations due to heart failure. RESULTS Overall, 241 patients were enrolled; 73% had SDB and 29% were initiated on PAP treatment. At a median follow-up of 1.7 years, 74 clinical events (32 deaths, 42 rehospitalizations) occurred. In the multivariable analysis, compared with the non-SDB group, SDB without PAP treatment was associated with an increased risk of clinical outcomes (hazard ratio [HR] 1.79, P = 0.049), whereas SDB with PAP treatment was not (HR 0.78, P = 0.582). Among patients with PAP treatment, a more compliant group was also inversely associated with clinical events (HR 0.11, P = 0.012). CONCLUSIONS In hospitalized patients with AHF, untreated SDB was associated with worse clinical outcomes that might be reversible by PAP treatment. However, this potential may be suppressed in less compliant patients.
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Affiliation(s)
- Sayaki Ishiwata
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, 113-8421, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan. .,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan. .,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, 113-8421, Japan. .,Department of Cardiovascular Management and Remote Monitoring, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
| | - Akihiro Sato
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Shoko Suda
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, 113-8421, Japan
| | - Hiroki Matsumoto
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Jun Shitara
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Shoichiro Yatsu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Azusa Murata
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Megumi Shimizu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Takao Kato
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Masaru Hiki
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yuya Matsue
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Ryo Naito
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, 113-8421, Japan
| | - Hiroyuki Daida
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Faculty of Health Science, Juntendo University, Tokyo, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Japan Agency for Medical Research and Development-Core Research for Evolutionary Medical Science and Technology (AMED-CREST), Japan Agency for Medical Research and Development, Tokyo, Japan
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33
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Yatsu S, Kasai T, Naito R, Matsumoto H, Murata A, Shitara J, Shiroshita N, Kato M, Kawana F, Sato A, Ishiwata S, Shimizu M, Kato T, Suda S, Hiki M, Matsue Y, Kobayashi M, Yoshioka E, Yamauchi T, Daida H. Utility of cyclic variation of heart rate score as a screening tool for sleep-disordered breathing in patients with heart failure. J Clin Sleep Med 2021; 17:2187-2196. [PMID: 34013882 DOI: 10.5664/jcsm.9422] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
STUDY OBJECTIVES Patients with sleep-disordered breathing have cyclic variation of heart rate (CVHR) in response to respiratory events. However, limited data are available regarding the utility of CVHR as a screening tool for sleep-disordered breathing in patients with mixed heart failure (HF) and those without HF. METHODS We enrolled consecutive patients with and without HF who underwent full polysomnographies with simultaneous Holter electrocardiogram monitoring. We determined the temporal position of the individual dips comprising the CVHR score using time-domain methods. RESULTS The data of 101 patients, including 70 with and 31 without HF, were analyzed. The CVHR score was significantly correlated with the apnea-hypopnea index (r = .667, P < .001) and limits of agreement between the apnea-hypopnea index and CVHR score were -21.8 to 35.2. The receiver operating characteristic analysis demonstrated that the CVHR score (best cut-off of 23.5 events/h) identified severe sleep-disordered breathing with a sensitivity of 83.3%, specificity of 79.5%, and the area under the curve of 0.856. In addition, there was no interaction between the presence or absence of HF and the apnea-hypopnea index-CVHR score relationship (P = .323). CONCLUSIONS The CVHR score, determined by Holter electrocardiogram monitoring, is a useful tool for evaluating sleep-disordered breathing even in patients with mixed HF and patients without HF. CITATION Yatsu S, Kasai T, Naito R, et al. Utility of cyclic variation of heart rate score as a screening tool for sleep-disordered breathing in patients with heart failure. J Clin Sleep Med. 2021;17(11):2187-2196.
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Affiliation(s)
- Shoichiro Yatsu
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan
| | - Ryo Naito
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroki Matsumoto
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Azusa Murata
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Jun Shitara
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Nanako Shiroshita
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Mitsue Kato
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Fusae Kawana
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihiro Sato
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Sayaki Ishiwata
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Megumi Shimizu
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Takao Kato
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Shoko Suda
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Yuya Matsue
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Mai Kobayashi
- Biological Information Analysis, Element Technology Department, Fukuda Denshi Co, Ltd, Tokyo, Japan
| | - Eriko Yoshioka
- Biological Information Analysis, Element Technology Department, Fukuda Denshi Co, Ltd, Tokyo, Japan
| | - Tsuyoshi Yamauchi
- Biological Information Analysis, Element Technology Department, Fukuda Denshi Co, Ltd, Tokyo, Japan
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
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Lin A, Manral N, McElhinney P, Killekar A, Matsumoto H, Cadet S, Achenbach S, Nicholls SJ, Wong DT, Berman D, Dweck M, Newby DE, Williams MC, Slomka PJ, Dey D. Deep learning-based plaque quantification from coronary computed tomography angiography: external validation and comparison with intravascular ultrasound. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Atherosclerotic plaque quantification from coronary computed tomography angiography (CTA) enables accurate assessment of coronary artery disease burden, progression, and prognosis. However, quantitative plaque analysis is time-consuming and requires high expertise. We sought to develop and externally validate an artificial intelligence (AI)-based deep learning (DL) approach for CTA-derived measures of plaque volume and stenosis severity. We compared the performance of DL to expert readers and the gold standard of intravascular ultrasound (IVUS).
Methods
This was a multicenter study of patients undergoing coronary CTA at 11 sites, with software-based quantitative plaque measurements performed at a per-lesion level by expert readers. AI-based plaque analysis was performed by a DL novel convolutional neural network which automatically segmented the coronary artery wall, lumen, and plaque for the computation of plaque volume and stenosis severity. Using expert measurements as ground truth, the DL algorithm was trained on 887 patients (4,686 lesions). Thereafter, the algorithm was applied to an independent test set of 221 patients (1,234 lesions), which included an external validation cohort of 171 patients from the SCOT-HEART (Scottish Computed Tomography of the Heart) trial as well as 50 patients who underwent IVUS within one month of CTA. We report the performance of AI-based plaque analysis in the independent test set.
Results
Within the external validation cohort, there was excellent agreement between DL and expert reader measurements of total plaque volume (intraclass correlation coefficient [ICC] 0.876), noncalcified plaque volume (ICC 0.869), and percent diameter stenosis (ICC 0.850; all p<0.001). When compared with IVUS, there was excellent agreement for DL total plaque volume (ICC 0.945), total plaque burden (ICC 0.853), minimal luminal area (ICC 0.864), and percent area stenosis (ICC 0.805; all p<0.001); with strong correlation between DL and IVUS for total plaque volume (r=0.915; p<0.001; Figure). The average DL plaque analysis time was 20 seconds per patient, compared with 25–30 minutes taken by experts.
Conclusions
AI-based plaque quantification from coronary CTA using an externally validated DL approach enables rapid measurements of plaque volume and stenosis severity in close agreement with expert readers and IVUS.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Heart, Lung, and Blood Institute, United States
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Affiliation(s)
- A Lin
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - N Manral
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - P McElhinney
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - A Killekar
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - H Matsumoto
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - S Cadet
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - S Achenbach
- Friedrich Alexander University, Erlangen, Germany
| | | | - D T Wong
- Monash Heart, Melbourne, Australia
| | - D Berman
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - M Dweck
- University of Edinburgh, Edinburgh, United Kingdom
| | - D E Newby
- University of Edinburgh, Edinburgh, United Kingdom
| | - M C Williams
- University of Edinburgh, Edinburgh, United Kingdom
| | - P J Slomka
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - D Dey
- Cedars-Sinai Medical Center, Los Angeles, United States of America
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35
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Kimura SI, Kawabata T, Matsumoto H, Ohta Y, Yoshizumi A, Yoshida Y, Yamashita T, Watanabe H, Ohtsubo Y, Yamamoto N, Jin X. Bulk-sensitive spin-resolved resonant electron energy-loss spectroscopy (SR-rEELS): Observation of element- and spin-selective bulk plasmons. Rev Sci Instrum 2021; 92:093103. [PMID: 34598542 DOI: 10.1063/5.0055435] [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: 04/29/2021] [Accepted: 09/05/2021] [Indexed: 06/13/2023]
Abstract
We have developed spin-resolved resonant electron energy-loss spectroscopy with the primary energy of 0.3-1.5 keV, which corresponds to the core excitations of 2p-3d absorption of transition metals and 3d-4f absorption of rare-earths, with the energy resolution of about 100 meV using a spin-polarized electron source as a GaAs/GaAsP strained superlattice photocathode. Element- and spin-selective carrier and valence plasmons can be observed using the resonance enhancement of core absorptions and electron spin polarization. Furthermore, bulk-sensitive electron energy-loss spectroscopy spectra can be obtained because the primary energy corresponds to the mean free path of 1-10 nm. The methodology is expected to provide us with novel information about elementary excitations by resonant inelastic x-ray scattering and resonant photoelectron spectroscopy.
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Affiliation(s)
- Shin-Ichi Kimura
- Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Taishi Kawabata
- Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Hiroki Matsumoto
- Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yu Ohta
- Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Ayuki Yoshizumi
- Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yuto Yoshida
- Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Takumi Yamashita
- Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Hiroshi Watanabe
- Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshiyuki Ohtsubo
- Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Yamamoto
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Xiuguang Jin
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
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Shitara J, Kasai T, Murata N, Yamakawa N, Yatsu S, Murata A, Matsumoto H, Kato T, Suda S, Matsue Y, Naito R, Hiki M, Daida H. Temporal changes of cardiac acoustic biomarkers and cardiac function in acute decompensated heart failure. ESC Heart Fail 2021; 8:4037-4047. [PMID: 34184415 PMCID: PMC8497215 DOI: 10.1002/ehf2.13492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/26/2021] [Accepted: 06/15/2021] [Indexed: 11/11/2022] Open
Abstract
AIMS Relationships between cardiac acoustic biomarkers (CABs) measured by acoustic cardiography and clinical outcomes have been reported in heart failure (HF) patients. However, no studies have investigated the temporal change of CABs and the corresponding changes in HF status. The purpose of this study was to assess whether the temporal changes of CABs in patients with acute decompensated heart failure (ADHF) reflect changes in cardiac function and status. METHODS AND RESULTS Sixty ADHF patients were enrolled prospectively. CABs and echocardiography data were collected at admission, before discharge, and at the first clinic visit. CABs included electromechanical activation time (EMAT); the time interval from Q wave onset on electrocardiography to the first heart sound (S1), QoS2; the time interval from Q wave onset on electrocardiography to the second heart sound (S2); and third heart sound (S3) and fourth heart sound (S4) intensities, defined as the peak-to-peak amplitudes of S3 and S4. EMATc (EMAT/RR) (P = 0.001), S3 intensity (P < 0.001), and S4 intensity (P < 0.001) were significantly decreased, and QoS2 (P = 0.005) was significantly increased from admission to discharge. The change in S3 intensity was significantly correlated with that of E/A (ρ = 0.571, P < 0.001), and the extended QoS2 was also significantly correlated with the increase in the stroke volume index (ρ = 0.383, P = 0.004). CONCLUSIONS Some CABs in ADHF patients changed significantly in the normal direction throughout the treatment course and could be useful biomarkers in ADHF management.
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Affiliation(s)
- Jun Shitara
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Sleep and Sleep Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan
| | - Nobutaka Murata
- Healthcare R&D Center, Asahi Kasei Corporation, Tokyo, Japan
| | | | - Shoichiro Yatsu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Azusa Murata
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hiroki Matsumoto
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takao Kato
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Shoko Suda
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yuya Matsue
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ryo Naito
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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Matsumoto H, Miyagawa M, Yin Y, Oosumi T. Effects of organic acid, Enterococcus faecalis strain EC-12 and sugar cane extract in feed against enterotoxigenic Escherichia coli-induced diarrhea in pigs. AMB Express 2021; 11:68. [PMID: 33983462 PMCID: PMC8119551 DOI: 10.1186/s13568-021-01228-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/03/2021] [Indexed: 11/10/2022] Open
Abstract
Diarrhea can lead to mortality and delayed growth in pigs and is a major economic loss in the pig industry. In this study, we evaluated non-antimicrobial materials that can prevent diarrhea to infection by enterotoxigenic Escherichia coli (ETEC) in weaned pigs and investigated biological changes. We confirmed the efficacy of fumaric acid, lactic acid, Enterococcus faecalis strain EC-12 (EC12) and sugar cane extract (SCE) in inhibiting diarrhea and investigated the biological changes by analyzing gut microbiota and plasma metabolites. Administration of EC12 (0.1%, w/w) and SCE (1.0%, w/w) groups had reduced score of diarrhea. Furthermore, the combination of EC12 and SCE was effective at reducing the fecal score of diarrhea even at low concentrations. Administration of either EC12 or SCE greatly reduced the relative abundance of Enterobacteriaceae in pigs. EC12 and SCE were most effective in suppressing ETEC-induced diarrhea in weaned pigs. Furthermore, we were able to identify biological changes in pigs when EC12 and SCE were administered to pigs. These feeds may have prevented infection by ETEC in weaned pigs and may improve pig productivity and reduce the use of antimicrobial agents.
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Matsumoto H, Okujima T, Mori S, Bacilla ACC, Takase M, Uno H, Kobayashi N. Cyclo[9]pyrrole: Selective Synthesis of [34]Nonaphyrin(0.0.0.0.0.0.0.0.0). Org Lett 2021; 23:3442-3446. [PMID: 33962513 DOI: 10.1021/acs.orglett.1c00899] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cyclo[9]pyrrole, a ring-expanded porphyrin without meso-bridges and having an odd number of pyrroles, was synthesized via the oxidative coupling of 2,2':5',2″-terpyrrole. X-ray crystallography showed a C2-like symmetry with a large root-mean-square deviation. The optical properties and electronic structures were analyzed using magnetic circular dichroism spectroscopy and time-dependent density functional theory calculations.
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Affiliation(s)
- Hiroki Matsumoto
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - Tetsuo Okujima
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan.,Research Unit for Power Generation and Storage Materials, Ehime University, Matsuyama, 790-8577, Japan
| | - Shigeki Mori
- Research Unit for Power Generation and Storage Materials, Ehime University, Matsuyama, 790-8577, Japan.,Advanced Research Support Center, Ehime University, Matsuyama 790-8577, Japan
| | - Ana C C Bacilla
- Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, Japan
| | - Masayoshi Takase
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - Hidemitsu Uno
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - Nagao Kobayashi
- Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, Japan
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Kaiho T, Suzuki H, Matsumoto H, Toyoda T, Inage T, Tanaka K, Sakairi Y, Nakajima T, Kiuchi M, Motohashi S, Nakayama T, Yoshino I. The Role of Immune Checkpoint Molecules in Lung Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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40
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Kato T, Kasai T, Suda S, Sato A, Ishiwata S, Yatsu S, Matsumoto H, Shitara J, Shimizu M, Murata A, Kagiyama N, Hiki M, Matsue Y, Naito R, Takagi A, Daida H. Prognostic effects of arterial carbon dioxide levels in patients hospitalized into the cardiac intensive care unit for acute heart failure. Eur Heart J Acute Cardiovasc Care 2021; 10:497-502. [PMID: 34192746 DOI: 10.1093/ehjacc/zuab001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/12/2020] [Accepted: 01/06/2021] [Indexed: 11/13/2022]
Abstract
AIMS Although both hypercapnia and hypocapnia are common in acute heart failure (AHF) patients, routine assessment of arterial blood gas is not recommended. Additionally, no association between hypercapnia and increased mortality has been found, and the prognostic value of hypocapnia in AHF patients remains to be elucidated. In this observational study, we aimed to investigate the relationship between partial pressure of arterial carbon dioxide (PaCO2), especially low PaCO2, and long-term mortality in AHF patients. METHODS AND RESULTS Acute heart failure patients hospitalized in the cardiac intensive care unit of our institution between 2007 and 2011 were screened. All eligible patients were divided into two groups based on the inflection point (i.e. 31.0 mmHg) of the 3-knot cubic spline curve of the hazard ratio (HR), with a PaCO2 of 40 mmHg as a reference. The association between PaCO2 levels and all-cause mortality was assessed using Cox proportional hazards regression models. Among 435 patients with a median follow-up of 1.8 years, 115 (26.4%) died. Adjusted analysis with relevant variables as confounders indicated that PaCO2 <31 mmHg was significantly associated with increased all-cause mortality [HR 1.71, 95% confidence interval (CI) 1.05-2.79; P = 0.032]. When PaCO2 was considered as a continuous variable, the lower was the log-transformed PaCO2, the greater was the increased risk of mortality (HR 0.71, 95% CI 0.52-0.96; P = 0.024). CONCLUSIONS In AHF patients, lower PaCO2 at admission was associated with increased long-term mortality risk.
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Affiliation(s)
- Takao Kato
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Cardiovascular Management and Remote Monitoring, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Digital Health and Telemedicine R&D, Juntendo University Faculty of Health Science, Tokyo, Japan
| | - Shoko Suda
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan
| | - Akihiro Sato
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Sayaki Ishiwata
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shoichiro Yatsu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroki Matsumoto
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Jun Shitara
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Megumi Shimizu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Azusa Murata
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobuyuki Kagiyama
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Digital Health and Telemedicine R&D, Juntendo University Faculty of Health Science, Tokyo, Japan
| | - Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuya Matsue
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ryo Naito
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan.,Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Atsutoshi Takagi
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Digital Health and Telemedicine R&D, Juntendo University Faculty of Health Science, Tokyo, Japan
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Matsumoto H, Suzuki H, Toyoda T, Inage T, Tanaka K, Sakairi Y, Ishibashi F, Nakajima T, Yoshino I. Left superior segmentectomy for a patient with displaced anomalous apicoposterior branches of the pulmonary vein and bronchus: a case report. Surg Case Rep 2021; 7:8. [PMID: 33409601 PMCID: PMC7788113 DOI: 10.1186/s40792-020-01097-0] [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: 11/08/2020] [Accepted: 12/21/2020] [Indexed: 11/10/2022] Open
Abstract
Background Knowledge of anatomical abnormalities and variations in pulmonary vessels and bronchi is critical for patients requiring a lung segmentectomy. To the best of our knowledge, this is the first case of a tumor existing in the lower lobe in conjunction with a displaced B1+2 in which the B1+2 was not accidentally cut during surgery. Case presentation A 71-year-old woman was referred to our hospital after a part-solid lung cancer was found in the superior segment of her left lung on chest computed tomography. Preoperative three-dimensional computed tomography revealed a displaced anomalous left B1+2 arising from the left main bronchus and anomalous V1+2 returning to the inferior pulmonary vein. We identified these anomalies during surgery and performed a left superior segmentectomy. After an unremarkable recovery, the patient was discharged from the hospital on the eighth day postoperative. Conclusions We used a three-dimensional construction system during the preoperative planning of the pulmonary segmentectomy to better understand the bronchovascular structures. When performing surgery where anatomical abnormalities are present, there is the possibility of misidentification. Using the three-dimensional construction system, it was possible to perform safer surgery, as the surgeons were able to preoperatively prepare for any abnormalities.
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Affiliation(s)
- Hiroki Matsumoto
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Hidemi Suzuki
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan.
| | - Takahide Toyoda
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Terunaga Inage
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Kazuhisa Tanaka
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Yuichi Sakairi
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Fumihiro Ishibashi
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Takahiro Nakajima
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Ichiro Yoshino
- Department of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
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Ishiwata S, Kato T, Kasai T, Sato A, Yatsu S, Matsumoto H, Shitara J, Murata A, Shimizu M, Suda S, Matsue Y, Naito R, Hiki M, Daida H. Changes in self-reported physical activity and health-related quality of life following 3-month astaxanthin supplementation in patients with heart failure: results from a pilot study. Ann Palliat Med 2020; 10:1396-1403. [PMID: 33183036 DOI: 10.21037/apm-20-1378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/10/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND Astaxanthin has a strong antioxidant effect. We recently demonstrated that following 3-month astaxanthin supplementation, cardiac contractility and exercise tolerance improved, possibly through the suppression of oxidative stress in a small pilot study involving patients with heart failure with left ventricular systolic dysfunction. This is a sub-study of our pilot study to investigate whether improvements of selfreported physical activity and health-related quality of life were observed following 3-month astaxanthin supplementation. METHODS We investigated the changes in physical activity by the Specific Activity Scale score and healthrelated quality of life by physical and mental component summary scores in Short Form-8 at baseline and after 3-month astaxanthin supplementation. RESULTS Data from 17 patients with heart failure were assessed. Following 3-month astaxanthin supplementation, the Specific Activity Scale score increased from the median of 4.5 (interquartile range, 2.0) to 6.5 (interquartile range, 1.1) metabolic equivalent (P=0.001), and the physical and mental component summary scores increased from 46.1±9.2 to 50.8±6.8 (P=0.015) and from 48.9±9.1 to 53.8±4.8 (P=0.022), respectively. There was a linear relationship of the baseline heart rate, or mental component summary score with the percent change in the Specific Activity Scale score (r=0.523, P=0.031 and r=-0.505, P=0.039, respectively). In addition, there was a direct relationship of ischemic etiology with the percent change in the physical component summary score (r=0.483, P=0.049, respectively). Finally, there was a linear relationship between the percent change in the Specific Activity Scale score and that in the mental component summary score (r=0.595, P=0.012). CONCLUSIONS Following 3-month astaxanthin supplementation, improvements of the self-reported physical activity level and health-related quality of life in both mental and physical components were observed. In patients with heart failure, those with higher baseline heart rate, ischemic etiology, and poorer baseline health-related quality of life have potentials to have greater improvement of physical activity and/or health-related quality of life.
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Affiliation(s)
- Sayaki Ishiwata
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan; Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takao Kato
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan; Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan; Sleep and Sleep Disordered Breathing Center, Juntendo University Hospital, Tokyo, Japan.
| | - Akihiro Sato
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan; Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shoichiro Yatsu
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiroki Matsumoto
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Jun Shitara
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Azusa Murata
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Megumi Shimizu
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Shoko Suda
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Yuya Matsue
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan; Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ryo Naito
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan; Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
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Ishiwata S, Matsue Y, Kasai T, Yatsu S, Matsumoto H, Shitara J, Shimizu M, Kurita A, Kato T, Suda S, Hiki M, Takagi A, Daida H. Validation and comparison of BIOSTAT risk score and AHEAD score for patients with acute heart failure. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background/Introduction
Acute heart failure (AHF) is one of the major causes of mortality, and identifying the patients at high risk of mortality at the time of admission is crucial to improve clinical outcomes. Although some risk prediction models for patients with AHF have been proposed mainly from randomized clinical trials, the patients in such studies tend not to be similar to those in the real world. Recently, BIOSTAT risk score and AHEAD score derived from two large-scale registry dataset are proposed as useful risk stratification tools for patients with AHF. However, these scores have not been well externally validated and their prognostic prediction performance has not been directly compared.
Purpose
To validate and compare prognostication of BIOSTAT risk score and AHEAD score in AHF patients.
Methods
Patients who consecutively admitted to the cardiac intensive-care unit in our institution with a diagnosis of AHF from 2007 to 2011 were analyzed. Among them, patients with acute coronary syndrome, dialysis, malignancy were excluded. BIOSTAT risk score was calculated using 5 factors (age, blood urea nitrogen, BNP, hemoglobin, prescription of beta blockers), and AHEAD score was also calculated with 5 factors (atrial fibrillation, hemoglobin, age, creatinine, and diabetes mellitus). We also developed AHEAD + BNP model incorporating BNP into AHEAD score. Endpoint was 1-year all-cause death.
Results
Overall, 591 eligible patients were enrolled (mean age was 70±14 years old, 64.8% were male) and 96 patients (16.2%) died during the follow-up of 1-year. The median [interquartile range] of AHEAD score and BIOSTAT risk score were 2 [1–3] and 3 [2–4], respectively. The areas under the curves of receiver operating characteristic curve (AUC) were 0.66 for AHEAD, 0.68 for AHEAD + BNP, and 0.72 for BIOSTAT, respectively. The calibration plots for AHEAD, AHEAD + BNP, and BIOSTAT models showed good calibration (Hosmer-Lemeshow test: p=0.89, 0.74, and 0.74, respectively). The BIOSTAT model's AUC was significantly higher compared to AHEAD (p=0.018) and marginally statistically higher compared to AHEAD + BNP (p=0.054). However, BIOSTAT model showed statistically significant net reclassification improvement compared to both AHEAD (NRI: 0.43, p<0.001) and AHEAD + BNP (NRI: 0.43, p<0.001).
Conclusion
The BIOSTAT score comprised of five readily available clinical variables predict 1-year mortality of patients with AHF with good discrimination and calibration.
ROC curves
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Ishiwata
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Cardiovascular Respiratory Sleep Medicine, Tokyo, Japan
| | - Y Matsue
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Cardiovascular Respiratory Sleep Medicine, Tokyo, Japan
| | - T Kasai
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Cardiovascular Respiratory Sleep Medicine, Tokyo, Japan
| | - S Yatsu
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Matsumoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - J Shitara
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Shimizu
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - A Kurita
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Kato
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - S Suda
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Hiki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - A Takagi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Daida
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
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Ogura K, Tsujita H, Arai T, Sakai R, Tanaka H, Masaki R, Oishi Y, Nomura K, Arai K, Sekimoto T, Kondo S, Tsukamoto S, Mori H, Matsumoto H, Shinke T. Early vascular healing following bioresorbable-polymer sirolimus-eluting stent implantation in comparison with durable-polymer everolimus-eluting stent: sequential optical coherence tomography study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Orsiro ultrathin-strut bioresorbable-polymer sirolimus-eluting stent (BP-SES) might facilitate early vascular healing responses that seems to be associated with improved long-term clinical outcomes. We compared the early vascular healing responses to BP-SES and Xience durable-polymer everolimus-eluting stent (DP-EES) in patients with chronic coronary syndrome (CCS) using optical coherence tomography (OCT).
Methods
A total of 40 patients with CCS receiving OCT-guided PCI were included. 20 patients were assigned to BP-SES, and 20 to DP-EES. OCT was performed immediately after stent placement (post-procedure) and at 1 month follow-up. Struts were recorded as uncovered if any part was visibly exposed in the lumen or covered if a layer of tissue covered all reflecting surfaces. The incidence of intrastent thrombus (IS-Th) and irregular protrusion (IRP) were also assessed.
Results
At 1 month, the percentage of uncovered struts was significantly lower in the BP-SES compared with the DP-EES (2.8±1.6% vs. 5.8±1.8%, respectively; p<0.001), and that of malapposed struts was similar between both groups (2.5±3.1% vs. 2.4±2.2%; p=0.76). There were no differences in the incidence of IS-Th (65.0% vs. 55.0% at post-procedure; p=0.54, 30.0% vs. 35.0% at 1 month; p=0.75) and IRP (30.0% vs. 25.0% at post-procedure; p=0.74). IRP had completely resolved at 1 month in both groups.
Conclusion
Early vascular healing response to Orsiro BP-SES implantation was revealed in CCS patients at 1 month compared with Xience DP-EES. Orsiro BP-SES may have a potential to shorten the dual antiplatelet therapy duration.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Ogura
- Showa University Hospital, Tokyo, Japan
| | - H Tsujita
- Showa University Hospital, Tokyo, Japan
| | - T Arai
- Showa University Hospital, Tokyo, Japan
| | - R Sakai
- Showa University Hospital, Tokyo, Japan
| | - H Tanaka
- Showa University Hospital, Tokyo, Japan
| | - R Masaki
- Showa University Hospital, Tokyo, Japan
| | - Y Oishi
- Showa University Hospital, Tokyo, Japan
| | - K Nomura
- Showa University Hospital, Tokyo, Japan
| | - K Arai
- Showa University Hospital, Tokyo, Japan
| | | | - S Kondo
- Showa University Hospital, Tokyo, Japan
| | | | - H Mori
- Showa University Hospital, Tokyo, Japan
| | | | - T Shinke
- Showa University Hospital, Tokyo, Japan
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Yorozu A, Sutani S, Soyano T, Matsumoto H, Toya K, Shiraishi Y, Saito S. Long-term Outcomes of Very-high-risk versus High-risk Prostate Cancer Patients Treated with Brachytherapy-based Treatment. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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Oishi Y, Shinke T, Tanaka H, Ogura K, Arai K, Masaki R, Nomura K, Kosaki R, Sakai K, Sekimoto T, Tsujita H, Kondo S, Tsukamoto S, Mori H, Matsumoto H. Early vascular responses to ultrathin biodegradable polymer sirolimus-eluting stent for the treatment of st-elevation myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Recent clinical study suggests newer-generation drug-eluting stents (DES) that combine ultrathin strut and nano-coating with biodegradable polymers sirolimus-eluting stent (BP-SES) could improve long-term clinical outcomes in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) over current generation DES. However, safety profiles in very early phase have not been systematically addressed.
Objective and method
We exploratory investigate early vascular response following BP-SES implantation in patients with STEMI to reveal mechanism of the favorable clinical outcomes in recent studies using frequency domain-optical coherence tomography (FD-OCT).
Consecutive twenty patients with STEMI who underwent FD-OCT immediately after primary PCI and were eligible for follow-up FD-OCT at 2 weeks after implantation were enrolled between June 2018 and November 2019.
Results
Twenty patients (age 62.7±11.3 years, male 85.0%) were enrolled with frequencies of hypertension (45.0%), diabetes mellitus (35.0%), dyslipidemia (55.0%) and smoking (80.0%). Aspiration catheter were used in all patients, and 1.13±0.34 stents were used. Only one patient (5.0%) received chronic antiplatelet therapy with aspirin prior to the onset of STEMI. All patients started to receive prasugrel as thienopyridine from this event and continued dual antiplatelet therapy for 2 weeks.
The percentage of uncovered struts significantly decreased from post-procedure to 2W follow-up (69±18% post-procedure versus 30±11% at 2W follow up, p<0.0001). Malapposed struts also decreased (5.6±5.7% post-procedure versus0.9±1.2% at 2W follow up, p<0.0001).The average protrusion area of athero-thrombotic burden numerically decreased (0.37±0.19 at post-procedure versus 0.34±0.14 mm2 at 2W follow up, p=0.19) and its volume showed similar tendency (10.60±6.40 at post-procedure versus 9.36±5.14 mm3 at 2W follow up, p=0.19).
Conclusion(s)
This study firstly elucidated very early vascular responses following ultrathin strut BP-SES implantation in STEMI patients, showing early progression of strut coverage and resolution of athero-thrombotic materials. This technology may have a potential to overcome the current generation DESs in this clinical setting.
Thrombus, uncovered and malapposed struts
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Oishi
- Showa University Hospital, Tokyo, Japan
| | - T Shinke
- Showa University Hospital, Tokyo, Japan
| | - H Tanaka
- Showa University Hospital, Tokyo, Japan
| | - K Ogura
- Showa University Hospital, Tokyo, Japan
| | - K Arai
- Showa University Hospital, Tokyo, Japan
| | - R Masaki
- Showa University Hospital, Tokyo, Japan
| | - K Nomura
- Showa University Hospital, Tokyo, Japan
| | - R Kosaki
- Showa University Hospital, Tokyo, Japan
| | - K Sakai
- Showa University Hospital, Tokyo, Japan
| | | | - H Tsujita
- Showa University Hospital, Tokyo, Japan
| | - S Kondo
- Showa University Hospital, Tokyo, Japan
| | | | - H Mori
- Showa University Hospital, Tokyo, Japan
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Ishiwata S, Yatsu S, Kasai T, Sato A, Matsumoto H, Shitara J, Shimizu M, Murata A, Kato T, Suda S, Doi S, Hiki M, Matsue Y, Naito R, Iwata H, Takagi A, Daida H. Prognostic Effect of a Novel Simply Calculated Nutritional Index in Acute Decompensated Heart Failure. Nutrients 2020; 12:E3311. [PMID: 33137941 PMCID: PMC7694067 DOI: 10.3390/nu12113311] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/22/2020] [Accepted: 10/27/2020] [Indexed: 12/21/2022] Open
Abstract
The TCB index (triglycerides × total cholesterol × body weight), a novel simply calculated nutritional index based on serum triglycerides (TGs), serum total cholesterol (TC), and body weight (BW), was recently reported to be a useful prognostic indicator in patients with coronary artery disease. Thus, this study aimed to investigate the relationship between TCBI and long-term mortality in acute decompensated heart failure (ADHF) patients. Patients with a diagnosis of ADHF who were consecutively admitted to the cardiac intensive care unit in our institution from 2007 to 2011 were targeted. TCBI was calculated using the formula TG (mg/dL) × TC (mg/dL) × BW (kg)/1000. Patients were divided into two groups according to the median TCBI value. An association between admission TCBI and mortality was assessed using univariable and multivariable Cox proportional hazard analyses. Overall, 417 eligible patients were enrolled, and 94 (22.5%) patients died during a median follow-up period of 2.2 years. The cumulative survival rate with respect to all-cause, cardiovascular, and cancer-related mortalities was worse in patients with low TCBI than in those with high TCBI. In the multivariable analysis, although TCBI was not associated with cardiovascular and cancer mortalities, the association between TCBI and reduced all-cause mortality (hazard ratio: 0.64, 95% confidence interval: 0.44-0.94, p = 0.024) was observed. We computed net reclassification improvement (NRI) when TCBI or Geriatric Nutritional Risk Index (GNRI) was added on established predictors such as hemoglobin, serum sodium level, and both. TCBI improved discrimination for all-cause mortality (NRI: 0.42, p < 0.001; when added on hemoglobin and serum sodium level). GNRI can improve discrimination for cancer mortality (NRI: 0.96, p = 0.002; when added on hemoglobin and serum sodium level). TCBI, a novel and simply calculated nutritional index, can be useful to stratify patients with ADHF who were at risk for worse long-term overall mortality.
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Affiliation(s)
- Sayaki Ishiwata
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Shoichiro Yatsu
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
- Sleep and Sleep-Disordered Breathing Center, Juntendo University Hospital, Tokyo 113-8421, Japan
| | - Akihiro Sato
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Hiroki Matsumoto
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Jun Shitara
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Megumi Shimizu
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Azusa Murata
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Takao Kato
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Shoko Suda
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Shinichiro Doi
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Yuya Matsue
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Ryo Naito
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
- Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Hiroshi Iwata
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Atsutoshi Takagi
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo 113-8421, Japan; (S.I.); (S.Y.); (A.S.); (H.M.); (J.S.); (M.S.); (A.M.); (T.K.); (S.S.); (S.D.); (M.H.); (Y.M.); (R.N.); (H.I.); (A.T.); (H.D.)
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Matsumoto H, Tanimura C, Kushida D, Osaka H, Kawabata Y, Hagino H. FRAX score and recent fall history predict the incidence for sarcopenia in community-dwelling older adults: a prospective cohort study. Osteoporos Int 2020; 31:1985-1994. [PMID: 32448948 DOI: 10.1007/s00198-020-05447-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 05/04/2020] [Indexed: 12/21/2022]
Abstract
UNLABELLED We hypothesized that the baseline FRAX score and previous falls would predict the incidence of sarcopenia in community-dwelling older adults who received medical check-ups. The FRAX score (hazard ratio [HR] = 1.087, 95% CI 1.014-1.167) and previous falls (HR = 5.181, 95% CI 1.002-26.777) were determined to be independent risk factors for the incidence of sarcopenia. PURPOSE This prospective study was performed to elucidate the prevalence and incidence of sarcopenia in community-dwelling older adults who received medical check-ups, and to determine whether FRAX score and fall history predict the incidence of sarcopenia. METHODS Participants were recruited from a group of individuals who had registered for an annual town-sponsored medical check-up. Study inclusion criteria were aged older than 60 years, living independently, and ability to walk without assistance. Individuals who received nursing care were excluded from the study. A total of 426 residential participants were analyzed. Demographic information, fall history of the previous year, and FRAX score without bone mineral density were assessed. The assessment for sarcopenia was based on the recommendations of the Asian Working Group for Sarcopenia. RESULTS The final sample for the assessment of sarcopenia incidence comprised 258 participants. The mean follow-up time was 2.92 years. The rate of sarcopenia was 1.06 cases per 100 person-years at risk. The Cox multivariate logistic regression model in our analysis was adjusted for age, gender, muscle mass, and covariates and showed that the FRAX score (HR = 1.087, 95% CI 1.014-1.167) and recent history of falls (HR = 5.181, 95% CI 1.002-26.777) were independent risk factors for the incidence of sarcopenia. CONCLUSION FRAX and history of falling can be a simple screening tool to raise awareness of the prevention of osteoporosis and sarcopenia in clinical settings.
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Affiliation(s)
- H Matsumoto
- Department of Physical Therapist, Faculty of Rehabilitation, Kawasaki University of Medical Welfare, Matsushima 288, Kurashiki, Okayama, 701-0193, Japan.
| | - C Tanimura
- School of Health Science, Faculty of Medicine, Tottori University, Nishicho 86, Yonago, Tottori, 683-8503, Japan
| | - D Kushida
- Department of Electrical Engineering & Computer Science, Faculty of Engineering, (Cross-Informatics Research Center), Tottori University, Koyama-cho Minami 4-101, Tottori, 680-8552, Japan
| | - H Osaka
- Department of Physical Therapist, Faculty of Rehabilitation, Kawasaki University of Medical Welfare, Matsushima 288, Kurashiki, Okayama, 701-0193, Japan
| | - Y Kawabata
- Department of Rehabilitation Medicine, Shuto General Hospital, JA Yamaguchi Prefectural Welfare Federation of Agricultural Cooperative, Kogaisaku 1000-1, Yanai, Yamaguchi, 742-0032, Japan
| | - H Hagino
- School of Health Science, Faculty of Medicine, Tottori University, Nishicho 86, Yonago, Tottori, 683-8503, Japan
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Matsumoto H, Suzuki H, Yoshino I. [Surgical Resection and Perioperative Management of Lung Cancer Requiring Vertebrectomy]. Kyobu Geka 2020; 73:829-833. [PMID: 33130774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
While cases of surgical resection for primary lung cancers are increasing, lung cancer requiring vertebrectomy is rare. A high complication rate and recurrence rate have been reported after surgical resection for lung cancer with vertebral invasion. However, select patients who achieve complete resection after effective preoperative chemoradiotherapy show a better survival rate than others. Preoperative computed tomography and magnetic resonance imaging are necessary to consider surgical strategies and how to resect and reconstruct the vertebral body and chest wall with a clear margin before surgery. A 3-dimensional imaging or simulation model is useful for such ends. Several surgical approaches have been developed, such as the transmanubrial, posterior, posterolateral, or the combination thereof. Proper vertebrectomy( total, hemi, part of a vertebra, or only the transverse process of a vertebra) and reconstruction approaches should be decided in conjunction with orthopedic surgeons. While evidence is lacking, establishing proper surgical indications and developing effective strategies to achieve complete resection with a clear margin are the most critical points in lung cancer requiring vertebrectomy.
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Affiliation(s)
- Hiroki Matsumoto
- Department of General Thoracic Surgery, Chiba University, Chiba, Japan
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50
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Morimoto T, Machii K, Matsumoto H, Takai S. [Web Questionnaire Survey on Appetite Loss and Weight Loss Associated with Cancer Cachexia Japanese Evidence for Patients Of Cancer Cachexia(J-EPOCC)-The Understanding of Cancer Cachexia]. Gan To Kagaku Ryoho 2020; 47:1075-1080. [PMID: 32668855] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cancer cachexia is multifactor syndrome that occurs in 50-80% of cancer patients and accounts for 20% of cancer deaths. We conducted a web questionnaire survey for healthcare professionals(doctors and medical staff), patients and families to clarify the understanding of cancer cachexia. As a result, it was revealed that the understanding of cancer cachexia among patients and families was low. Cancer cachexia was widely recognized by healthcare professionals, but 3 stages of EPCRC was not. Many of healthcare professionals recalled the image of terminal stage of cancer from the term "cancer cachexia", and they lack awareness that cancer cachexia was a disease complication which developed from the early stage of cancer. Furthermore, there were many doctors who were faced with the problem such as a lack of treatment options for cancer cachexia. From these facts, it is necessary to disseminate scientific concept of cancer cachexia and establish standard of care from the early stage.
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