1
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Tanaka K, Baba Y. Gastrointestinal: Diminutive Epstein-Barr virus-associated gastric carcinoma. J Gastroenterol Hepatol 2024; 39:420-421. [PMID: 37971278 DOI: 10.1111/jgh.16410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/16/2023] [Accepted: 10/28/2023] [Indexed: 11/19/2023]
Affiliation(s)
- K Tanaka
- Department of Gastroenterology, Inabe General Hospital, Inabe, Japan
- Department of Gastroenterology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Baba
- Department of Gastroenterology, Inabe General Hospital, Inabe, Japan
- Department of Pathology, Suzuka General Hospital, Suzuka, Japan
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2
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Hojo M, Tanaka K. Single-pass generation of widely-tunable frequency-domain entangled photon pairs. Opt Express 2024; 32:1902-1913. [PMID: 38297732 DOI: 10.1364/oe.504654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/15/2023] [Indexed: 02/02/2024]
Abstract
We demonstrate a technique that generates frequency-entangled photon pairs with strong polarization correlation by using a single-period nonlinear crystal and single pass configuration. The technique is based on the simultaneous occurrence of two spontaneous parametric down-conversion processes satisfying independent type-II collinear quasi-phase matching conditions in periodically poled stoichiometric lithium tantalate. The generated photon pairs exhibit non-degenerate Hong-Ou-Mandel interference, indicating the presence of quantum entanglement in the frequency domain. This method provides a light source capable of wide-range quantum sensing and quantum imaging or high-dimensional quantum processing.
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3
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Honma A, Takane D, Souma S, Yamauchi K, Wang Y, Nakayama K, Sugawara K, Kitamura M, Horiba K, Kumigashira H, Tanaka K, Kim TK, Cacho C, Oguchi T, Takahashi T, Ando Y, Sato T. Antiferromagnetic topological insulator with selectively gapped Dirac cones. Nat Commun 2023; 14:7396. [PMID: 37978297 PMCID: PMC10656484 DOI: 10.1038/s41467-023-42782-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023] Open
Abstract
Antiferromagnetic (AF) topological materials offer a fertile ground to explore a variety of quantum phenomena such as axion magnetoelectric dynamics and chiral Majorana fermions. To realize such intriguing states, it is essential to establish a direct link between electronic states and topology in the AF phase, whereas this has been challenging because of the lack of a suitable materials platform. Here we report the experimental realization of the AF topological-insulator phase in NdBi. By using micro-focused angle-resolved photoemission spectroscopy, we discovered contrasting surface electronic states for two types of AF domains; the surface having the out-of-plane component in the AF-ordering vector displays Dirac-cone states with a gigantic energy gap, whereas the surface parallel to the AF-ordering vector hosts gapless Dirac states despite the time-reversal-symmetry breaking. The present results establish an essential role of combined symmetry to protect massless Dirac fermions under the presence of AF order and widen opportunities to realize exotic phenomena utilizing AF topological materials.
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Affiliation(s)
- A Honma
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - D Takane
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - S Souma
- Center for Science and Innovation in Spintronics (CSIS), Tohoku University, Sendai, 980-8577, Japan.
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan.
| | - K Yamauchi
- Center for Spintronics Research Network (CSRN), Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Y Wang
- Institute of Physics II, University of Cologne, Köln, 50937, Germany
| | - K Nakayama
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Tokyo, 102-0076, Japan
| | - K Sugawara
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan
| | - M Kitamura
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, 305-0801, Japan
- National Institutes for Quantum Science and Technology (QST), Sendai, 980-8579, Japan
| | - K Horiba
- National Institutes for Quantum Science and Technology (QST), Sendai, 980-8579, Japan
| | - H Kumigashira
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, 980-8577, Japan
| | - K Tanaka
- UVSOR Synchrotron Facility, Institute for Molecular Science, Okazaki, 444-8585, Japan
| | - T K Kim
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0QX, UK
| | - C Cacho
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0QX, UK
| | - T Oguchi
- Center for Spintronics Research Network (CSRN), Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - T Takahashi
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan
| | - Yoichi Ando
- Institute of Physics II, University of Cologne, Köln, 50937, Germany
| | - T Sato
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan.
- Center for Science and Innovation in Spintronics (CSIS), Tohoku University, Sendai, 980-8577, Japan.
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan.
- International Center for Synchrotron Radiation Innov1ation Smart (SRIS), Tohoku University, Sendai, 980-8577, Japan.
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4
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Takayama S, Namiki T, Arita R, Ono R, Kikuchi A, Ohsawa M, Saito N, Suzuki S, Nakae H, Kobayashi S, Yoshino T, Ishigami T, Tanaka K, Takagi A, Yamaguchi T, Ishii T, Hisanaga A, Mitani K, Ito T. Contribution of traditional Japanese Kampo medicines, kakkonto with shosaikotokakikyosekko, in treating patients with mild-to-moderate coronavirus disease 2019: Further analysis of a multicenter, randomized controlled trial. J Infect Chemother 2023; 29:1054-1060. [PMID: 37507087 DOI: 10.1016/j.jiac.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/04/2023] [Accepted: 07/24/2023] [Indexed: 07/30/2023]
Abstract
We previously reported the finding of symptom relief in a randomized controlled trial with the combined use of kakkonto and shosaikotokakikyosekko added to conventional treatment in patients with coronavirus disease 2019 (COVID-19). For further evaluation, we performed post hoc analysis focused on symptom disappearance without recurrence, to determine a clearer effect of Kampo medicine. Patients with mild and moderate COVID-19 were randomly allocated to a control group receiving symptomatic therapy or a Kampo group receiving kakkonto (2.5 g) with shosaikotokakikyosekko (2.5 g) three times daily in addition to symptomatic therapy. The data of 161 patients (Kampo group, n = 81; control group, n = 80) were analyzed post hoc for the time to symptom disappearance. Kaplan-Meier and Cox proportional hazard estimates of disappearance of symptoms showed that all and each symptom targeted in this study disappeared faster in the Kampo group than in the control group, although not statistically significant (all symptomatic cases; hazard ratio [HR] 3.73, 95% confidence interval [CI] 0.46-29.98, log-rank p = 0.1763). In a supplemental assessment using covariate adjustment and competing risk analysis, fever disappeared faster in the Kampo group than in the control group (all symptomatic cases, HR 1.62, 95% CI 0.99-2.64, p = 0.0557; unvaccinated cases, HR 1.68, 95% CI 1.00-2.83, p = 0.0498) and shortness of breath disappeared significantly faster in Kampo group than in control group (all symptomatic cases, HR 1.92, 95% CI 1.07-3.42, p = 0.0278; unvaccinated cases, HR 2.15, 95% CI 1.17-3.96, p = 0.0141). These results demonstrate the advantages of Kampo treatment for acute COVID-19.
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Affiliation(s)
- Shin Takayama
- Department of Education and Support for Regional Medicine (General and Kampo Medicine), Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
| | - Takao Namiki
- Department of Japanese-Oriental (Kampo) Medicine, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Ryutaro Arita
- Department of Education and Support for Regional Medicine (General and Kampo Medicine), Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Rie Ono
- Department of Education and Support for Regional Medicine (General and Kampo Medicine), Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Akiko Kikuchi
- Department of Education and Support for Regional Medicine (General and Kampo Medicine), Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Minoru Ohsawa
- Department of Education and Support for Regional Medicine (General and Kampo Medicine), Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Natsumi Saito
- Department of Education and Support for Regional Medicine (General and Kampo Medicine), Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Satoko Suzuki
- Department of Education and Support for Regional Medicine (General and Kampo Medicine), Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Hajime Nakae
- Department of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, 1-1-1, Hondo, Akita, 010-8543, Japan
| | - Seiichi Kobayashi
- Department of Respiratory Medicine, Japanese Red Cross Ishinomaki Hospital, Nishimichishita-71, Hebita, Ishinomaki, 986-8522, Japan
| | - Tetsuhiro Yoshino
- Center for Kampo Medicine, Keio University School of Medicine, 35, Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tomoaki Ishigami
- Department of Cardiology, Yokohama City University Hospital, 3-9, Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Koichiro Tanaka
- Department of Traditional Medicine, Faculty of Medicine, Toho University, 6-11-1, Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Airi Takagi
- Clinical Research Data Center, Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Takuhiro Yamaguchi
- Division of Biostatistics, Tohoku University Graduate School of Medicine, 1-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Tadashi Ishii
- Department of Education and Support for Regional Medicine (General and Kampo Medicine), Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | | | - Kazuo Mitani
- Medical Corporation Mitani Family Clinic, Osaka, Japan
| | - Takashi Ito
- Akashi Clinic Kanda, 3-8, Ogawacho, Kanda, Chiyodaku, Tokyo, 101-0052, Japan
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Katsurahara M, Umeda Y, Yukimoto H, Shigefuku A, Nakamura M, Hamada Y, Tanaka K, Horiki N, Hayashi A, Nakagawa H. Gastrointestinal: Small bowel hemangioma with unusual endoscopic findings and complicated with obscure gastrointestinal bleeding. J Gastroenterol Hepatol 2023; 38:1455. [PMID: 36751046 DOI: 10.1111/jgh.16109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/17/2022] [Accepted: 01/07/2023] [Indexed: 02/09/2023]
Affiliation(s)
- M Katsurahara
- Department of Endoscopic Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Umeda
- Department of Endoscopic Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Yukimoto
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - A Shigefuku
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - M Nakamura
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Hamada
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
| | - K Tanaka
- Department of Endoscopic Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - N Horiki
- Department of Endoscopic Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - A Hayashi
- Department of Oncologic Pathology, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Nakagawa
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
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6
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Hojo M, Tani S, Kobayashi Y, Tanaka K. Coincidence measurements of two quantum-correlated photon pairs widely separated in the frequency domain. Sci Rep 2023; 13:8520. [PMID: 37231175 DOI: 10.1038/s41598-023-35831-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 05/24/2023] [Indexed: 05/27/2023] Open
Abstract
Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other in the infrared region, to be used for quantum infrared sensing without direct detection of infrared photons. Here, simultaneous multiwavelength and broadband phase matching in a nonlinear crystal could provide versatile photon-pairs source for broadband infrared quantum sensing. This paper describes direct generation and detection of two quantum-correlated photon pairs produced via simultaneous phase-matched processes in periodic crystals. These simultaneous photon pairs provide a correlated state with two frequency modes in a single pass. To confirm the correlation, we constructed an infrared-photon counting system with two repetition-synchronized fiber lasers. We performed coincidence measurements between two pairs, 980 nm and 3810 nm, and 1013 nm and 3390 nm, which yielded coincidence-to-accidental ratios of 6.2 and 6.5, respectively. We believe that our novel correlated light source with two separate pairs in the visible and infrared region complements a wide-range of multi-dimensional quantum infrared processing applications.
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Affiliation(s)
- Masayuki Hojo
- Department of Physics, Science, Kyoto University, Kitashirakawa-Oiwake, Sakyo, Kyoto, Japan.
| | - Shuntaro Tani
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwa-No-Ha, Kashiwa, Chiba, Japan
| | - Yohei Kobayashi
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwa-No-Ha, Kashiwa, Chiba, Japan
| | - Koichiro Tanaka
- Department of Physics, Science, Kyoto University, Kitashirakawa-Oiwake, Sakyo, Kyoto, Japan.
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7
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Amimoto S, Ishii M, Tanaka K, Araki S, Kuwamura M, Suga S, Kondo E, Shibata E, Kusuhara K, Yoshino K. Alagille-like syndrome with surprising karyotype: a case report. J Med Case Rep 2023; 17:186. [PMID: 37101309 PMCID: PMC10131304 DOI: 10.1186/s13256-023-03810-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 02/08/2023] [Indexed: 04/28/2023] Open
Abstract
BACKGROUND Chromosome 5p partial monosomy (5p-syndrome) and chromosome 6p partial trisomy are chromosomal abnormalities that result in a variety of symptoms, but liver dysfunction is not normally one of them. Alagille syndrome (OMIM #118450) is a multisystem disorder that is defined clinically by hepatic bile duct paucity and cholestasis, in association with cardiac, skeletal, and ophthalmologic manifestations, and characteristic facial features. Alagille syndrome is caused by mutations in JAG1 on chromosome 20 or NOTCH2 on chromosome 1. Here, we report a preterm infant with karyotype 46,XX,der(5)t(5,6)(p15.2;p22.3) and hepatic dysfunction, who was diagnosed as having incomplete Alagille syndrome. CASE PRESENTATION The Japanese infant was diagnosed based on the cardiac abnormalities, ocular abnormalities, characteristic facial features, and liver pathological findings. Analysis of the JAG1 and NOTCH sequences failed to detect any mutations in these genes. CONCLUSIONS These results suggest that, besides the genes that are known to be responsible for Alagille syndrome, other genetic mutations also may cause Alagille syndrome.
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Affiliation(s)
- S Amimoto
- Department of Obstetrics and Gynecology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Ishii
- Department of Pediatrics, Kitakyushu General Hospital, 1-1 Higashijonochou, Kokurakita-Ku, Kitakyushu-City, 802-8517, Japan.
| | - K Tanaka
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Araki
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Kuwamura
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Suga
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - E Kondo
- Department of Obstetrics and Gynecology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - E Shibata
- Department of Obstetrics and Gynecology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - K Kusuhara
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - K Yoshino
- Department of Obstetrics and Gynecology, University of Occupational and Environmental Health, Kitakyushu, Japan
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8
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Zhang Z, Sekiguchi F, Moriyama T, Furuya SC, Sato M, Satoh T, Mukai Y, Tanaka K, Yamamoto T, Kageyama H, Kanemitsu Y, Hirori H. Generation of third-harmonic spin oscillation from strong spin precession induced by terahertz magnetic near fields. Nat Commun 2023; 14:1795. [PMID: 37002210 PMCID: PMC10066181 DOI: 10.1038/s41467-023-37473-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/13/2023] [Indexed: 04/03/2023] Open
Abstract
The ability to drive a spin system to state far from the equilibrium is indispensable for investigating spin structures of antiferromagnets and their functional nonlinearities for spintronics. While optical methods have been considered for spin excitation, terahertz (THz) pulses appear to be a more convenient means of direct spin excitation without requiring coupling between spins and orbitals or phonons. However, room-temperature responses are usually limited to small deviations from the equilibrium state because of the relatively weak THz magnetic fields in common approaches. Here, we studied the magnetization dynamics in a HoFeO3 crystal at room temperature. A custom-made spiral-shaped microstructure was used to locally generate a strong multicycle THz magnetic near field perpendicular to the crystal surface; the maximum magnetic field amplitude of about 2 T was achieved. The observed time-resolved change in the Faraday ellipticity clearly showed second- and third-order harmonics of the magnetization oscillation and an asymmetric oscillation behaviour. Not only the ferromagnetic vector M but also the antiferromagnetic vector L plays an important role in the nonlinear dynamics of spin systems far from equilibrium.
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Affiliation(s)
- Zhenya Zhang
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Fumiya Sekiguchi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Takahiro Moriyama
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Shunsuke C Furuya
- Department of Basic Science, University of Tokyo, Meguro, Tokyo, 153-8902, Japan
| | - Masahiro Sato
- Department of Physics, Chiba University, Chiba, 263-8522, Japan
| | - Takuya Satoh
- Department of Physics, Tokyo Institute of Technology, Tokyo, 152-8551, Japan
| | - Yu Mukai
- Department of Electronic Science and Engineering, Kyoto University, Kyoto, Kyoto, 615-8510, Japan
| | - Koichiro Tanaka
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
| | - Takafumi Yamamoto
- Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan
| | - Hiroshi Kageyama
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Kyoto, 615-8510, Japan
| | - Yoshihiko Kanemitsu
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.
| | - Hideki Hirori
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.
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9
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Segawa M, Iizuka N, Ogihara H, Tanaka K, Nakae H, Usuku K, Yamaguchi K, Wada K, Uchizono A, Nakamura Y, Nishida Y, Ueda T, Shiota A, Hasunuma N, Nakahara K, Hebiguchi M, Hamamoto Y. Objective evaluation of tongue diagnosis ability using a tongue diagnosis e-learning/e-assessment system based on a standardized tongue image database. Front Med Technol 2023; 5:1050909. [PMID: 36993786 PMCID: PMC10040798 DOI: 10.3389/fmedt.2023.1050909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 02/10/2023] [Indexed: 03/14/2023] Open
Abstract
BackgroundIn Kampo medicine, tongue examination is used to diagnose the pathological condition “Sho,” but an objective evaluation method for its diagnostic ability has not been established. We constructed a tongue diagnosis electronic learning and evaluation system based on a standardized tongue image database.PurposeThis study aims to verify the practicality of this assessment system by evaluating the tongue diagnosis ability of Kampo specialists (KSs), medical professionals, and students.MethodsIn the first study, we analyzed the answer data of 15 KSs in an 80-question tongue diagnosis test that assesses eight aspects of tongue findings and evaluated the (i) test score, (ii) test difficulty and discrimination index, (iii) diagnostic consistency, and (iv) diagnostic match rate between KSs. In the second study, we administered a 20-question common Kampo test and analyzed the answer data of 107 medical professionals and 56 students that assessed the tongue color discrimination ability and evaluated the (v) correct answer rate, (vi) test difficulty, and (vii) factors related to the correct answer rate.ResultIn the first study, the average test score was 62.2 ± 10.7 points. Twenty-eight questions were difficult (correct answer rate, <50%), 34 were moderate (50%–85%), and 18 were easy (≥85%). Regarding intrarater reliability, the average diagnostic match rate of five KSs involved in database construction was 0.66 ± 0.08, and as for interrater reliability, the diagnostic match rate between the 15 KSs was 0.52 (95% confidence interval, 0.38–0.65) for Gwet's agreement coefficient 1, and the degree of the match rate was moderate. In the second study, the difficulty level of questions was moderate, with a correct rate of 81.3% for medical professionals and 82.1% for students. The discrimination index was good for medical professionals (0.35) and poor for students (0.06). Among medical professionals, the correct answer group of this question had a significantly higher total score on the Kampo common test than the incorrect answer group (85.3 ± 8.4 points vs. 75.8 ± 11.8 points, p < 0.01).ConclusionThis system can objectively evaluate tongue diagnosis ability and has high practicality. Utilizing this system can be expected to contribute to improving learners’ tongue diagnosis ability and standardization of tongue diagnosis.
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Affiliation(s)
- Makoto Segawa
- Department of Kampo Medicine, Yamaguchi University Hospital, Ube, Japan
- Correspondence: Makoto Segawa
| | - Norio Iizuka
- Department of Kampo Medicine, Yamaguchi University Hospital, Ube, Japan
- Yamaguchi Health Examination Center, Ogori-shimogo, Japan
| | - Hiroyuki Ogihara
- Department of Computer Science and Electronic Engineering, National Institute of Technology, Tokuyama Collage, Shunan, Japan
| | - Koichiro Tanaka
- Department of Traditional Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Hajime Nakae
- Department of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | | | - Kojiro Yamaguchi
- Outpatient of Dental Chronic Disease, TANAKA Orthodontic Clinic, Medical Corporation HAYANOKAI, Kagoshima, Japan
| | - Kentaro Wada
- Division of Nephrology and Dialysis, Department of Internal Medicine, Nippon Kokan Fukuyama Hospital, Hiroshima, Japan
| | | | | | - Yoshihiro Nishida
- Department of Obstetrics and Gynecology, Faculty of Medicine, Oita University, Oita, Japan
| | | | - Atsuko Shiota
- Department of Health Sciences, Faculty of Medicine, Kagawa University, Kitagun, Japan
| | - Naoko Hasunuma
- Department of Medical Education, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | | | - Yoshihiko Hamamoto
- Division of Electrical, Electronic and Information Engineering, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Ube, Japan
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10
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Uchida K, Kusaba S, Nagai K, Ikeda TN, Tanaka K. Diabatic and adiabatic transitions between Floquet states imprinted in coherent exciton emission in monolayer WSe 2. Sci Adv 2022; 8:eabq7281. [PMID: 36542708 PMCID: PMC9770970 DOI: 10.1126/sciadv.abq7281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 11/18/2022] [Indexed: 05/21/2023]
Abstract
Floquet engineering is a promising way of controlling quantum system with photon-dressed states on an ultrafast time scale. So far, the energy structure of Floquet states in solids has been intensively investigated. However, the dynamical aspects of the photon-dressed states under ultrashort pulse have not been explored yet. Their dynamics become highly sensitive to the driving field transients, and thus, understanding them is crucial for ultrafast manipulation of a quantum state. Here, we observed the coherent exciton emission in monolayer WSe2 at room temperature at the appropriate photon energy and the field strength of the driving light pulse using high-harmonic spectroscopy. Together with numerical calculations, our measurements revealed that the coherent exciton emission spectrum reflects the diabatic and adiabatic dynamics of Floquet states of excitons. Our results provide a previosuly unexplored approach to Floquet engineering and lead to control of quantum materials through pulse shaping of the driving field.
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Affiliation(s)
- Kento Uchida
- Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
- Corresponding author. (K.U.); (K.T.)
| | - Satoshi Kusaba
- Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kohei Nagai
- Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Tatsuhiko N. Ikeda
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Koichiro Tanaka
- Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
- Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
- Corresponding author. (K.U.); (K.T.)
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11
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Sugita R, Hirayama K, Shirouzu T, Tanaka K. Spirodecosporaceae fam. nov. ( Xylariales, Sordariomycetes) and two new species of Spirodecospora. Fungal Syst Evol 2022; 10:217-229. [PMID: 36741553 PMCID: PMC9875695 DOI: 10.3114/fuse.2022.10.09] [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: 11/21/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
The genus Spirodecospora has been placed in Xylariaceae based on morphological similarities. Spirodecospora spp., found on bamboo in Japan, were taxonomically and phylogenetically studied using molecular data for first time. Molecular phylogenetic analyses were based on the DNA sequence data of three regions: the nuclear ribosomal internal transcribed spacer (ITS) region, the large subunit (LSU) of rDNA, and the second largest RNA polymerase II subunit (rpb2) gene. Results showed that Spirodecospora formed an independent lineage from other known families in Xylariales. The new family Spirodecosporaceae is introduced in this study to accommodate this lineage based on the phylogenetic evidence and morphological differences from the other known families. Spirodecospora is characterised by having deeply immersed ascomata with a cylindrical ostiolar neck, unitunicate, cylindrical asci with I+, wedge-shaped apical ring, and broadly ellipsoidal to fusoid, aseptate, brown, verruculose ascospores with spirally or almost straight linear ornamentation. Based on morphological observations and molecular phylogenetic analyses, S. melnikii and two new species of Spirodecospora, S. paramelnikii and S. paulospiralis, are described and illustrated. A key to the four accepted species of Spirodecospora is provided. Citation: Sugita R, Hirayama K, Shirouzu T, Tanaka K (2022). Spirodecosporaceae fam. nov. (Xylariales, Sordariomycetes) and two new species of Spirodecospora. Fungal Systematics and Evolution 10: 217-229. doi: 10.3114/fuse.2022.10.09.
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Affiliation(s)
- R. Sugita
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan,The United Graduate School of Agricultural Sciences, Iwate University, 18-8 Ueda 3 chome, Morioka, Iwate 020-8550, Japan
| | - K. Hirayama
- Apple Research Institute, Aomori Prefectural Industrial Technology Research Center (AITC), 24 Fukutami, Botandaira, Kuroishi, Aomori 036-0332, Japan
| | - T. Shirouzu
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie, 514-8507, Japan
| | - K. Tanaka
- Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan,*Corresponding author:
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12
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Fuji H, Fujibuchi T, Tanaka H, Hiramatsu C, Ogawa Y, Noda C, Hayakawa M, Tanaka K. Effect of live video viewing on parents’ satisfaction and anxiety about radiotherapy introduction during radiotherapy for pediatric cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.09.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Abdul Karim A, Tanaka K, Nagata C, Arakawa M, Miyake Y. Association between parental occupations, educational levels, and household income and children's psychological adjustment in Japan. Public Health 2022; 213:71-77. [PMID: 36395682 DOI: 10.1016/j.puhe.2022.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 08/12/2022] [Accepted: 10/11/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Most research on the association between parental or family socio-economic status and psychological adjustment in children has been performed mainly in Western countries, while there is limited evidence of such research in Asian countries. We examined the association of parental occupation and educational levels and household income with children's psychological adjustment in Japan. STUDY DESIGN This was a cross-sectional study. METHODS Study subjects were 6329 children aged 3 years. Children's psychological adjustment was assessed using the Strengths and Difficulties Questionnaire. RESULTS Compared with having an unemployed father, having a father who worked in an administrative and managerial or clerical job was associated with a lower prevalence of peer problems. Compared with having an unemployed mother, having a mother who worked in the professional and engineering, sales, service, or manufacturing process area was associated with a lower prevalence of low prosocial behaviors, whereas having a mother who worked in the clerical, service, or manufacturing process area was associated with an increased prevalence of emotional problems. Having a mother who worked in a clerical area was associated with a higher prevalence of conduct problems. Higher paternal and maternal educational levels were inversely associated with the prevalence of conduct problems and hyperactivity but were positively associated with low prosocial behaviors. A higher household income was inversely associated with the prevalence of emotional problems, conduct problems, and hyperactivity. CONCLUSION Parental occupation, educational levels, and household income may affect children's psychological adjustment in Japan.
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Affiliation(s)
- A Abdul Karim
- Department of Epidemiology and Public Health, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - K Tanaka
- Department of Epidemiology and Public Health, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan; Research Promotion Unit, Translation Research Center, Ehime University Hospital, Ehime, Japan; Center for Data Science, Ehime University, Ehime, Japan.
| | - C Nagata
- Department of Epidemiology and Preventive Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - M Arakawa
- Wellness Research Fields, Faculty of Global and Regional Studies, University of the Ryukyus, Okinawa, Japan
| | - Y Miyake
- Department of Epidemiology and Public Health, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan; Research Promotion Unit, Translation Research Center, Ehime University Hospital, Ehime, Japan; Center for Data Science, Ehime University, Ehime, Japan
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14
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Takayama S, Namiki T, Arita R, Ono R, Kikuchi A, Ohsawa M, Saito N, Suzuki S, Nakae H, Kobayashi S, Yoshino T, Ishigami T, Tanaka K, Nochioka K, Takagi A, Mimura M, Yamaguchi T, Ishii T, Hisanaga A, Mitani K, Ito T. Multicenter, randomized controlled trial of traditional Japanese medicine, kakkonto with shosaikotokakikyosekko, for mild and moderate coronavirus disease patients. Front Pharmacol 2022; 13:1008946. [PMID: 36438822 PMCID: PMC9682103 DOI: 10.3389/fphar.2022.1008946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/07/2022] [Indexed: 07/30/2023] Open
Abstract
The traditional Japanese (Kampo) medicine, kakkonto with shosaikotokakikyosekko, has antiviral and anti-inflammatory effects. In this randomized trial, patients with mild and moderate coronavirus disease (COVID-19) were randomly allocated to the control group receiving conventional treatment for symptom relief such as antipyretics and antitussives or the Kampo group receiving mixed extract granules of kakkonto (2.5 g) and shosaikotokakikyosekko (2.5 g) three times a day for 14 days in addition to conventional treatment. The main outcome was the number of days until total symptom relief. The secondary outcome was the number of days until each symptom's relief and whether the disease progressed to respiratory failure. We enrolled a total of 161 patients (Kampo group, n = 81; control group, n = 80). The results from Kaplan-Meier estimates of symptom relief showed that there are no significant differences between the groups. However, covariate-adjusted cumulative incidence of fever relief considering competitive risk showed that the recovery was significantly faster in the Kampo group than in the control group (HR 1.76, 95% CI 1.03-3.01). Additionally, the risk of disease progression to moderate COVID-19 requiring oxygen inhalation was lower in the Kampo group than in the control group (Risk Difference -0.13, 95% CI -0.27-0.01). No significant drug-related side effects were observed. Kakkonto with shosaikotokakikyosekko is effective for fever relief with suppression of disease progression in COVID-19 patients. Clinical Trial Registration: https://jrct.niph.go.jp/en-latest-detail/jRCTs021200020, identifier [jRCTs021200020].
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Affiliation(s)
- Shin Takayama
- Department of Education and Support for Regional Medicine (General and Kampo medicine), Tohoku University Hospital, Sendai, Japan
| | - Takao Namiki
- Department of Japanese-Oriental (Kampo) Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Ryutaro Arita
- Department of Education and Support for Regional Medicine (General and Kampo medicine), Tohoku University Hospital, Sendai, Japan
| | - Rie Ono
- Department of Education and Support for Regional Medicine (General and Kampo medicine), Tohoku University Hospital, Sendai, Japan
| | - Akiko Kikuchi
- Department of Education and Support for Regional Medicine (General and Kampo medicine), Tohoku University Hospital, Sendai, Japan
| | - Minoru Ohsawa
- Department of Education and Support for Regional Medicine (General and Kampo medicine), Tohoku University Hospital, Sendai, Japan
| | - Natsumi Saito
- Department of Education and Support for Regional Medicine (General and Kampo medicine), Tohoku University Hospital, Sendai, Japan
| | - Satoko Suzuki
- Department of Education and Support for Regional Medicine (General and Kampo medicine), Tohoku University Hospital, Sendai, Japan
| | - Hajime Nakae
- Department of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Seiichi Kobayashi
- Department of Respiratory Medicine, Japanese Red Cross Ishinomaki Hospital, Ishinomaki, Japan
| | - Tetsuhiro Yoshino
- Center for Kampo Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tomoaki Ishigami
- Department of Cardiology, Yokohama City University Hospital, Yokohama, Japan
| | - Koichiro Tanaka
- Department of Traditional Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Kotaro Nochioka
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Airi Takagi
- Clinical Research Data Center, Tohoku University Hospital, Sendai, Japan
| | - Masaru Mimura
- Center for Kampo Medicine, Keio University School of Medicine, Tokyo, Japan
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Takuhiro Yamaguchi
- Division of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tadashi Ishii
- Department of Education and Support for Regional Medicine (General and Kampo medicine), Tohoku University Hospital, Sendai, Japan
| | | | - Kazuo Mitani
- Medical Corporation Mitani Family Clinic, Osaka, Japan
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15
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Tokuzawa T, Nasu T, Inagaki S, Moon C, Ido T, Idei H, Ejiri A, Imazawa R, Yoshida M, Oyama N, Tanaka K, Ida K. 3D metal powder additive manufacturing phased array antenna for multichannel Doppler reflectometer. Rev Sci Instrum 2022; 93:113535. [PMID: 36461436 DOI: 10.1063/5.0101723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/07/2022] [Indexed: 06/17/2023]
Abstract
Measuring the time variation of the wavenumber spectrum of turbulence is important for understanding the characteristics of high-temperature plasmas, and the application of a Doppler reflectometer with simultaneous multi-frequency sources is expected. To implement this diagnostic in future fusion devices, the use of a phased array antenna (PAA) that can scan microwave beams without moving antennas is recommended. Since the frequency-scanning waveguide leaky-wave antenna-type PAA has a complex structure, we have investigated its characteristics by modeling it with 3D metal powder additive manufacturing (AM). First, a single waveguide is fabricated to understand the characteristics of 3D AM techniques, and it is clear that there are differences in performance depending on the direction of manufacture and surface treatment. Then, a PAA is made, and it is confirmed that the beam can be emitted in any direction by frequency scanning. The plasma flow velocity can be measured by applying the 3D manufacturing PAA to plasma measurement.
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Affiliation(s)
- T Tokuzawa
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| | - T Nasu
- The Graduate University for Advanced Studies, SOKENDAI, Toki 509-5292, Japan
| | - S Inagaki
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji 611-0011, Japan
| | - C Moon
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - T Ido
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - H Idei
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - A Ejiri
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - R Imazawa
- National Institutes for Quantum Science and Technology, 801-1 Mukoyama, Naka, Ibaraki 311-0193, Japan
| | - M Yoshida
- National Institutes for Quantum Science and Technology, 801-1 Mukoyama, Naka, Ibaraki 311-0193, Japan
| | - N Oyama
- National Institutes for Quantum Science and Technology, 801-1 Mukoyama, Naka, Ibaraki 311-0193, Japan
| | - K Tanaka
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| | - K Ida
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
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16
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Tanaka K, Yasuda N. Effects of long-term training on whole body DNA oxidation in adolescent female volleyball athletes. J Sci Med Sport 2022. [DOI: 10.1016/j.jsams.2022.09.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Nasu T, Tokuzawa T, Tsujimura TI, Ida K, Yoshinuma M, Kobayashi T, Tanaka K, Emoto M, Inagaki S, Ejiri A, Kohagura J. Receiver circuit improvement of dual frequency-comb ka-band Doppler backscattering system in the large helical device (LHD). Rev Sci Instrum 2022; 93:113518. [PMID: 36461466 DOI: 10.1063/5.0101588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/04/2022] [Indexed: 06/17/2023]
Abstract
Doppler-backscattering (DBS) has been used in several fusion plasma devices because it can measure the perpendicular velocity of electron density perturbation v⊥, the radial electric field Er, and the perpendicular wavenumber spectrum S(k⊥) with high wavenumber and spatial resolution. In particular, recently constructed frequency comb DBS systems enable observation of turbulent phenomena at multiple observation points in the radial direction. A dual-comb microwave DBS system has been developed for the large helical device plasma measurement. Since it is desirable to control the gain of each frequency-comb separately, a frequency-comb DBS system was developed with a function to adjust the gain of the scattered signal intensity of each channel separately. A correction processing method was also developed to correct the amplitude ratio and the phase difference between the in-phase and quadrature-phase signals of the scattered signals. As a result, the error in Doppler-shift estimation required to observe vertical velocity and the radial electric field was reduced, which enables more precise measurements.
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Affiliation(s)
- T Nasu
- School of Physics Science, The Graduate University for Advanced Studies, Toki 509-5292, Japan
| | - T Tokuzawa
- School of Physics Science, The Graduate University for Advanced Studies, Toki 509-5292, Japan
| | - T I Tsujimura
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| | - K Ida
- School of Physics Science, The Graduate University for Advanced Studies, Toki 509-5292, Japan
| | - M Yoshinuma
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| | - T Kobayashi
- School of Physics Science, The Graduate University for Advanced Studies, Toki 509-5292, Japan
| | - K Tanaka
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| | - M Emoto
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| | - S Inagaki
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji 611-0011, Japan
| | - A Ejiri
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - J Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
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Murakami Y, Uchida K, Koga A, Tanaka K, Werner P. Anomalous Temperature Dependence of High-Harmonic Generation in Mott Insulators. Phys Rev Lett 2022; 129:157401. [PMID: 36269969 DOI: 10.1103/physrevlett.129.157401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
We reveal the crucial effect of strong spin-charge coupling on high-harmonic generation (HHG) in Mott insulators. In a system with antiferromagnetic correlations, the HHG signal is drastically enhanced with decreasing temperature, even though the gap increases and the production of charge carriers is suppressed. This anomalous behavior, which has also been observed in recent HHG experiments on Ca_{2}RuO_{4}, originates from a cooperative effect between the spin-charge coupling and the thermal ensemble, as well as the strongly temperature-dependent coherence between charge carriers. We argue that the peculiar temperature dependence of HHG is a generic feature of Mott insulators, which can be controlled via the Coulomb interaction and dimensionality of the system. Our results demonstrate that correlations between different degrees of freedom, which are a characteristic feature of strongly correlated solids, have significant and nontrivial effects on nonlinear optical responses.
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Affiliation(s)
- Yuta Murakami
- Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
- Center for Emergent Matter Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - Kento Uchida
- Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Akihisa Koga
- Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
| | - Koichiro Tanaka
- Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
- Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Philipp Werner
- Department of Physics, University of Fribourg, 1700 Fribourg, Switzerland
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19
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Oka T, Koyama Y, Inoue K, Tanaka N, Tanaka K, Hirao Y, Okada M, Okamura A, Iwakura K, Fujii K, Masuda M, Watanabe T, Sunaga A, Hikoso S, Sakata Y. Extensive ablation strategy for persistent atrial fibrillation impairs left atrial function but reduces recurrence rate. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.462] [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
In catheter ablation for persistent atrial fibrillation (AF), extensive ablation strategy, such as linear ablation and/or complex fractionated atrial electrogram (CFAE) ablation in addition to pulmonary vein isolation (PVI-plus), might impair left atrial function more severely than PVI-alone strategy.
Purpose
The aim of this study is to investigate the impact of extensive ablation strategy on LA function and assess the relationship between post-ablation LA function and recurrence.
Methods
This study is a post-hoc subanalysis of the EARNEST-PVI randomized controlled trial, which investigated the efficacy of the PVI-alone strategy in comparison with PVI-plus strategy for persistent AF. From the 497 participants of EARNEST-PVI trial, we enrolled 191 patients with full datasets of pre- and post-ablation cardiac computed tomography (CT) at our Hospital. Patients were divided into PVI-alone and PVI-plus groups. Within one month before and 3 months after ablation, LA volume index (LAVI) and LA emptying fraction (LAEF) were calculated by using the Comprehensive Cardiac Analysis software on the Extended Brilliance Workspace. We assessed i) post-ablation LA function, ii) AF/atrial tachycardia (AT) -free rate after single and final session, and iii) relationship between post-ablation LAEF and ablation success in each group.
Results
The indices of baseline LA remodeling were not different between PVI-alone (N=96) and PVI-plus groups (N=95) [LAVI: 71.4 (57.8, 82.0) vs. 68.7 (61.0, 78.1), P=0.92, LAEF: 13.7 (10.0, 17.4) vs. 13.0 (10.0, 16.9), PVI-alone vs. PVI-plus, P=0.78]. In overall patients, post-ablation LAEF did not differ among them [34.4 (26.1, 40.7) vs. 31.6 (26.0, 37.4), P=0.13]. In the analysis of patients showing sinus rhythm during the CT study, LAEF was significantly higher in PVI-alone (N=87) than in PVI-plus group (N=93) [35.7 (29.0, 41.0) vs. 31.7 (26.1, 37.5), P=0.011] (Figure 1A). AF/AT-free survival rate during median follow-up of 44 months was not different after first session (63.5% vs. 68.4%, P=0.33), while PVI-plus had a tendency towards higher success rate after final session (72.9% vs. 84.2%, P=0.053) (Figure 2). In receiver operating characteristics analysis for recurrence after first session, post-ablation decreased LAEF had significantly related to recurrence after PVI-alone (AUC: 0.733, P<0.0001), but not after PVI-plus (AUC: 0.567, P=0.31) (Figure 1B, C).
Conclusion
Compared with PVI-alone strategy, PVI-plus strategy damaged LA function more severely, but tended to be related to higher success rate. Post-ablation LA function was related to recurrence in PVI-alone, but not in PVI-plus. Extensive ablation might have additional anti-arrhythmic effect regardless of iatrogenic myocardial damage. Myocardial injury by extensive ablation may less attribute to recurrence than intrinsic damage of LA.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- T Oka
- Osaka University Graduate School of Medicine, Department of Cardiovascular Medicine , Suita , Japan
| | - Y Koyama
- Sakurabashi-Watanabe Hospital, Cardiovasucular Division , Osaka , Japan
| | - K Inoue
- National Hospital Organization Osaka National Hospital , Osaka , Japan
| | - N Tanaka
- Sakurabashi-Watanabe Hospital, Cardiovasucular Division , Osaka , Japan
| | - K Tanaka
- Sakurabashi-Watanabe Hospital, Cardiovasucular Division , Osaka , Japan
| | - Y Hirao
- Sakurabashi-Watanabe Hospital, Cardiovasucular Division , Osaka , Japan
| | - M Okada
- Sakurabashi-Watanabe Hospital, Cardiovasucular Division , Osaka , Japan
| | - A Okamura
- Sakurabashi-Watanabe Hospital, Cardiovasucular Division , Osaka , Japan
| | - K Iwakura
- Sakurabashi-Watanabe Hospital, Cardiovasucular Division , Osaka , Japan
| | - K Fujii
- Sakurabashi-Watanabe Hospital, Cardiovasucular Division , Osaka , Japan
| | - M Masuda
- Kansai Rosai Hospital , Amagasaki , Japan
| | - T Watanabe
- Osaka General Medical Center , Osaka , Japan
| | - A Sunaga
- Osaka University Graduate School of Medicine, Department of Cardiovascular Medicine , Suita , Japan
| | - S Hikoso
- Osaka University Graduate School of Medicine, Department of Cardiovascular Medicine , Suita , Japan
| | - Y Sakata
- Osaka University Graduate School of Medicine, Department of Cardiovascular Medicine , Suita , Japan
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Tsugu T, Tanaka K, Nagatomo Y, Belsack D, Argacha JF, Cosysns B, De Maeseneer M, De Mey J. Impact of vessel morphology on computed tomography derived fractional flow reserve (FFRCT) in normal coronary artery disease: a novel marker for the predictor of FFRCT changes. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.204] [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
Computed tomography (CT) derived fractional flow reserve (FFRCT) decreases continuously from the proximal to the distal segments of the vessel even in normal coronary arteries. It has been empirically proved that the degree of FFRCT decline varies based on vessel morphology even in the same vessel length.
Purpose
To investigate the vessel morphological factors that influence FFRCT in normal coronary arteries.
Methods
A total of 1402 outpatients with suspected CAD who underwent CT angiography (CTA) with FFRCT analysis between January 2017 and October 2021 were evaluated. Among them, 234 consecutive patients who underwent both CT angiography including FFRCT and invasive coronary angiography, resulting in <20% stenosis in right coronary artery (RCA) were evaluated. RCA vessels from ostium to just proximal site of the posterior descending branch were analysed and divided into two groups according to distal FFRCT: FFRCT >0.80 (n=219) and FFRCT ≤0.80 (n=15). FFRCT was measured at proximal and distal segments of the RCA. Vessel morphology (vessel length, lumen diameter and volume, and plaque volume) and left ventricular mass were assessed. The ratio of lumen volume and vessel length was defined as the V/L ratio.
Results
Whereas vessel length was almost the same between FFRCT >0.80 and ≤0.80 (>0.80 vs. ≤0.80, 115.9±17.3 vs. 119.6±28.7 mm), lumen volume (1135.2±369.3 vs. 906.2±362.6 mm3, p<0.05) and V/L ratio (9.8±2.6 vs. 7.5±2.3, p<0.01) were significantly higher in FFRCT >0.80. Distal FFRCT correlated with plaque-related parameters [low-attenuation plaque, intermediate-attenuation plaque, and calcified plaque (CP)] and vessel-related parameters (proximal and distal vessel diameter, vessel length, lumen volume, and V/L ratio). Among all vessel-related parameters, V/L ratio showed the highest correlation with distal FFRCT (r=0.44, p<0.0001) (Figure 1). Multivariable analysis showed that CP volume was the strongest predictor of distal FFRCT (β-coefficient = −0.38, p<0.0001), followed by V/L ratio (β-coefficient = 0.95, p=0.007). V/L ratio was the strongest predictor of a distal FFRCT ≤0.80 (cut-off 8.2, AUC 0.73, sensitivity 66.7%, specificity 69.3%, 95% CI 0.60–0.86) (Figure 2).
Conclusions
Our study findings suggest that the V/L ratio can be a measure to predict subclinical coronary perfusion disturbance.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- T Tsugu
- Universitair Ziekenhuis Brussel, Department of Radiology , Brussels , Belgium
| | - K Tanaka
- Universitair Ziekenhuis Brussel, Department of Radiology , Brussels , Belgium
| | - Y Nagatomo
- National Defense Medical College Hospital, Department of Cardiology , Tokorozawa , Japan
| | - D Belsack
- Universitair Ziekenhuis Brussel, Department of Radiology , Brussels , Belgium
| | - J F Argacha
- Universitair Ziekenhuis Brussel, Cardiology, Centrum voor Hart- en Vaatziekten , Brussels , Belgium
| | - B Cosysns
- Universitair Ziekenhuis Brussel, Cardiology, Centrum voor Hart- en Vaatziekten , Brussels , Belgium
| | - M De Maeseneer
- Universitair Ziekenhuis Brussel, Department of Radiology , Brussels , Belgium
| | - J De Mey
- Universitair Ziekenhuis Brussel, Department of Radiology , Brussels , Belgium
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21
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Iwakura K, Onishi T, Okamura A, Koyama Y, Hirao Y, Tanaka K, Iwamoto M, Tanaka N, Okada M, Watanabe H, Nakatani D, Hikoso S, Sakata Y, Sakata Y. Development of the new risk score to predict occurrence of atrial fibrillation early after acute myocardial infarction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.509] [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
New onset of atrial fibrillation (AF) is associated with adverse short- and long-term outcomes after acute myocardial infarction (AMI), and its prediction is relevant for the risk stratification in patients with AMI. Although several risk scores were developed for AF in the general population, there is no established risk score for AF occurrence after AMI.
Purpose
To develop a risk score to predict occurrence of AF early after AMI.
Methods
We enrolled consecutive 751 patients with AMI who admitted to our hospital between April 2006 and September 2012 for the present study. New occurrence of AF was defined as AF detected during hospital stay in a patient showing normal regular sinus rhythm at admission. Parameters relevant to the occurrence of AF was selected from the clinical characteristics, physical status and blood test data at admission, and peak CK/CK-MB, by stepwise logistic regression analysis. We constructed a risk score model to predict the new occurrence of AF, using selected parameters and their logistic regression coefficients. C-statistics was determined by constructing a receiver operating characteristic curve to evaluate the accuracy of the risk score for prediction of AF occurrence.
Results
We excluded 48 patients (6.4%) who had AF at admission, and 208 patients without sufficient data at admission, and thus, the study group consisted of 459 patients (age; 65±13 years, male gender; 79.6%). New AF occurrence was observed in 72 patients (14.5%). The following 7 parameters was selected as parameters related with AF (as p<0.1); Inferior/posterior AMI, use of β blockers, use of diuretics, single vessel disease, absence of reperfusion therapy, systolic blood pressure (sBP) at admission, and smoking. One point was given to sBP>128mmHg, 2 points to absence of reperfusion, and one point to other parameters. Sum of these points was calculated as the AF risk score (Table 1). AF occurred in 27.1% of patients with ≥5 points whereas it was observed 5.2% of those with <5 points. C-statistics of the risk score was 0.75 (95% CI 0.68–0.83).
Conclusion
We developed a novel risk score to estimate the risk of AF occurrence early after AMI, which can be a useful tool for the risk stratification after AMI.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- K Iwakura
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - T Onishi
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - A Okamura
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - Y Koyama
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - Y Hirao
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - K Tanaka
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - M Iwamoto
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - N Tanaka
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - M Okada
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - H Watanabe
- Sakurabashi-Watanabe Hospital , Osaka , Japan
| | - D Nakatani
- Osaka University Graduate School of Medicine, Department of Cardiovascular Medicine , Suita , Japan
| | - S Hikoso
- Osaka University Graduate School of Medicine, Department of Cardiovascular Medicine , Suita , Japan
| | - Y Sakata
- National Cerebral and Cardiovascular Center Hospital, Department of Clinical Medicine and Development , Osaka , Japan
| | - Y Sakata
- Osaka University Graduate School of Medicine, Department of Cardiovascular Medicine , Suita , Japan
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22
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Tanaka N, Okada M, Tanaka K, Harada S, Kawahira M, Hirao Y, Onishi T, Koyama Y, Fujii K, Watanabe H, Okamura A, Iwakura K. Untreated sleep apnea and left atrial dilatation in patients with atrial fibrillation prior to catheter ablation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.513] [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
Sleep apnea and left atrial dilatation are both risk factors for an arrhythmia recurrence after catheter ablation (CA) of atrial fibrillation (AF). Negative intrathoracic pressure fluctuations during an obstructive apnea episode may cause the left atrium to distend and stretch its wall. Whether sleep apnea is associated with left atrial dilatation in patients receiving CA of AF remains unknown.
Purpose
We sought to elucidate whether moderate or severe untreated sleep apnea was associated with left atrial dilatation in patients with AF before CA.
Methods
This study was conducted under a retrospective, single-center, observational design. The data were derived from screening tests for sleep apnea, which were routinely performed in patients scheduled to receive CA of AF in our institution. After excluding patients who were already diagnosed with sleep apnea, we enrolled 1265 consecutive patients (age 65±11 years, 27.8% females, and 46.2% of non-paroxysmal AF) who underwent both home sleep apnea testing and multidetector computed tomography (MDCT) before the CA of AF. The severity of the sleep apnea was evaluated by the apnea-hypopnea index (AHI) using a watch-type peripheral arterial tonometry. Left atrial dilatation was evaluated by the left atrial maximum volume (LA max V) using 256-slice MDCT.
Results
The age was 65±11 years, 27.8% were females, and 46.2% had non-paroxysmal AF. The mean AHI was 20.3±15.3 and LA max V 105±34 ml (R2=0.075, p<0.0001). LA dilatation was defined by larger than mean LA max V (LA max V≥105 ml). We examined an LA max V≥105 ml as a predictor. After an adjustment by an advanced age (≥65 years), non-paroxysmal AF, male sex, obesity, hypertension, and congestive heart failure, all of which were significant predictors of an LA max V≥105ml in the univariate analysis, moderate or severe sleep apnea (AHI≥15) was a significant predictor of an LA max V≥105 ml (odds ratio 1.63, 95% confidence interval 1.24–2.14, p=0.0005).
Conclusion
Among the patients scheduled to receive catheter ablation of AF, moderate or severe sleep apnea was independently associated with left atrial dilatation.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Tanaka
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - M Okada
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - K Tanaka
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - S Harada
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - M Kawahira
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - Y Hirao
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - T Onishi
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - Y Koyama
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - K Fujii
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - H Watanabe
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - A Okamura
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - K Iwakura
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
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23
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Tanaka N, Inoue K, Hirao Y, Koyama Y, Okamura A, Iwakura K, Okada M, Tanaka K, Kobori A, Kaitani K, Morimoto T, Morishima I, Kusano K, Kimura T, Shizuta S. Sex differences in terms of recurrent atrial fibrillation after catheter ablation according to the history of heart failure: insights from the Kansai Plus Atrial Fibrillation (KPAF) registry. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.608] [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
There are significant differences in the prevalence and prognosis of cardiovascular diseases between male and female. We previously reported that catheter ablation (CA) of atrial fibrillation (AF) was less effective in female than male, but whether their history of heart failure influence the recurrence after CA of AF remains still unknown.
Purpose
We sought to clarify sex differences in terms of AF recurrence after RFCA of AF according to the history of heart failure.
Methods
We conducted a large-scale, prospective, multicenter, observational study (Kansai Plus Atrial Fibrillation Registry). We enrolled 5010 consecutive patients who underwent an initial RFCA of AF at 26 centers (64±10 years; 1369 [27.3%] females; non-paroxysmal AF, 35.7%). The median follow-up duration was 2.9 years.
Results
Fourteen % of female had a history of heart failure prior to CA, while 12.8% of male had a history of heart failure at baseline (p=0.29). The 3-year cumulative incidence of AF recurrence after a single procedure was 43.3% in female and 39.0% in male (log rank P=0.0046). In patients with the history of heart failure, AF recurrence rates were 42.2% in female and 45.8% in male (log rank P=0.51). On the other hand, in patients without history of heart failure, more females experienced AF recurrence (female vs. male, 43.5% vs. 38.0%, log rank P=0.001).
The rate of AF recurrence after multiple procedures was higher in female (24.2% vs. 19.6%, log rank P<0.0001). AF recurrence rates were similar between sexes in patients with history of heart failure (female vs. male, 26.0% vs. 26.7%, log rank P=0.86), while AF recurrence rates were higher in female without history of heart failure than those in male (females vs. males, 23.9% vs. 18.5%, log rank P<0.0001).
Conclusion
The Kansai Plus Atrial Fibrillation Registry revealed a distinct sex difference in terms of the AF recurrence after CA of AF. Females had higher recurrence rates compared with males in patients without history of heart failure, while recurrence rates were similar between sexes in patients with history of heart failure.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): Research Institute for Production Development in Kyoto, Japan.
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Affiliation(s)
- N Tanaka
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - K Inoue
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - Y Hirao
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - Y Koyama
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - A Okamura
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - K Iwakura
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - M Okada
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - K Tanaka
- Sakurabashi-Watanabe Hospital, Cardiovascular Center , Osaka , Japan
| | - A Kobori
- Kobe City Medical Center General Hospital , Kobe , Japan
| | - K Kaitani
- Japanese Red Cross Otsu Hospital , Otsu , Japan
| | - T Morimoto
- Hyogo Medical University , Nishinomiya , Japan
| | | | - K Kusano
- National Cerebral & Cardiovascular Center , Suita , Japan
| | - T Kimura
- Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - S Shizuta
- Kyoto University Graduate School of Medicine , Kyoto , Japan
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24
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Masuda S, Kageyama S, Kotoku N, Ninomiya K, Schneider U, Doenst T, Tanaka K, Mey JD, Lameir M, Mushtaq S, Bartorelli A, Pompilio G, Andreini D, Onuma Y, Serruys PW. Comparison of the SYNTAX score 2020 based on Coronary Artery Computed Tomography (CCTA) with Invasive Coronary Angiography (ICA). Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.199] [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
Introduction
The SYNTAX III REVOLUTION trial demonstrated that clinical decision-making between coronary artery bypass graft (CABG) and percutaneous coronary intervention (PCI) based on coronary artery computed tomography (CCTA) and predicting four years mortality according to the SYNTAX score II had a high agreement with the treatment decision derived from invasive coronary angiography (ICA). The agreement of the novel SYNTAX score 2020 (SS-2020) based on CCTA and ICA has not yet been evaluated in a prospective fashion.
Methods
This study included 54 consecutive patients in the ongoing FASTTRACK CABG trial that investigates decision making, planning and procedural CABG guidance based solely on CCTA and FFRct. All the patients underwent CCTA and ICA, and SS-2020 was calculated based on the results of anatomical SYNTAX score derived from either CCTA or ICA, and the respective scores were compared by using paired t-test.
Results
The mean age was 67.3±9.7, and 48 were men (88.9%). Anatomical SYNTAX score derived from CCTA was assessed in the 54 cases (analysability 100%). Anatomical SYNTAX scores based on CCTA and ICA were 34.3±9.3, and 35.5±11.3, respectively (P=0.480). As shown in the table predicted 5 years major adverse cardiac and cerebrovascular events (MACCE) following either PCI or CABG, as well as predicted 10 years mortality following CABG differed significantly. However the absolute risk differences (ARD) in 5 years MACCE and 10 years mortality following either PCI or CABG, were comparable.
Conclusions
High agreements were confirmed in the calculations of anatomical SYNTAX scores with CCTA and ICA. Despite significant differences in predicted MACCE rates at 5 years and mortalities at 10 years, the ARD in MACCE rates and mortality were comparable. In terms of treatment decision-making, SS-2020 calculations based on CCTA is a non-invasive predictive tool comparable to the one based on ICA.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Masuda
- National University of Ireland , Galway , Ireland
| | - S Kageyama
- National University of Ireland , Galway , Ireland
| | - N Kotoku
- National University of Ireland , Galway , Ireland
| | - K Ninomiya
- National University of Ireland , Galway , Ireland
| | | | - T Doenst
- University Hospital Jena , Jena , Germany
| | - K Tanaka
- University Hospital (UZ) Brussels , Brussels , Belgium
| | - J D Mey
- University Hospital (UZ) Brussels , Brussels , Belgium
| | - M Lameir
- University Hospital (UZ) Brussels , Brussels , Belgium
| | - S Mushtaq
- Centro Cardiologico Monzino , Milano , Italy
| | | | - G Pompilio
- Centro Cardiologico Monzino , Milano , Italy
| | - D Andreini
- Centro Cardiologico Monzino , Milano , Italy
| | - Y Onuma
- National University of Ireland , Galway , Ireland
| | - P W Serruys
- National University of Ireland , Galway , Ireland
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25
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Yamaguchi H, Wakuda K, Fukuda M, Kenmotsu H, Ito K, Tsuchiya-Kawano Y, Tanaka K, Harada T, Nakatani Y, Miura S, Yokoyama T, Nakamura T, Izumi M, Nakamura A, Ikeda S, Takayama K, Yoshimura K, Nakagawa K, Yamamoto N, Sugio K. 990P Osimertinib for RT-naïve CNS metastasis of EGFR mutation-positive NSCLC: Phase II OCEAN study (LOGIK 1603/WJOG 9116L), part of the first-line cohort. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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26
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Hiraga H, Machida R, Kawai A, Matsumoto Y, Yonemoto T, Nishida Y, Nagano A, Ae K, Yoshida S, Asanuma K, Toguchida J, Huruta D, Nakayama R, Akisue T, Hiruma T, Morii T, Tanaka K, Kataoka T, Fukuda H, Ozaki T. 1482O A phase III study comparing methotrexate (M), adriamycin (A) and cisplatin (P) with MAP + ifosfamide (MAP + IF) for the treatment of osteosarcoma: JCOG0905. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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27
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Inoue H, Tsutsumi H, Okamura K, Ota K, Yoneshima Y, Iwama E, Tanaka K, Okamoto I. EP08.01-036 Low-dose EGFR-TKIs Directly Induce Maturation and Functional Activity of Human Dendritic Cells in an EGFR-independent manner. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Morioka S, Tsuzuki S, Suzuki M, Terada M, Akashi M, Osanai Y, Kuge C, Sanada M, Tanaka K, Maruki T, Takahashi K, Saito S, Hayakawa K, Teruya K, Hojo M, Ohmagari N. Post COVID-19 condition of the Omicron variant of SARS-CoV-2. J Infect Chemother 2022; 28:1546-1551. [PMID: 35963600 PMCID: PMC9365517 DOI: 10.1016/j.jiac.2022.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/18/2022] [Accepted: 08/04/2022] [Indexed: 12/12/2022]
Abstract
Objectives To investigate the prevalence of post coronavirus disease (COVID-19) condition of the Omicron variant in comparison to other strains. Study design A single-center cross-sectional study. Methods Patients who recovered from Omicron COVID-19 infection (Omicron group) were interviewed via telephone, and patients infected with other strains (control group) were surveyed via a self-reporting questionnaire. Data on patients’ characteristics, information regarding the acute-phase COVID-19, as well as presence and duration of COVID-19-related symptoms were obtained. Post COVID-19 condition in this study was defined as a symptom that lasted for at least 2 months, within 3 months of COVID-19 onset. We investigated and compared the prevalence of post COVID-19 condition in both groups after performing propensity score matching. Results We conducted interviews for 53 out of 128 patients with Omicron and obtained 502 responses in the control group. After matching cases with controls, 18 patients from both groups had improved covariate balance of the factors: older adult, female sex, obesity, and vaccination status. There were no significant differences in the prevalence of each post COVID-19 condition between the two groups. The number of patients with at least one post COVID-19 condition in the Omicron and control groups were 1 (5.6%) and 10 (55.6%) (p = 0.003), respectively. Conclusions The prevalence of post Omicron COVID-19 conditions was less than that of the other strains. Further research with a larger sample size is needed to investigate the precise epidemiology of post COVID-19 condition of Omicron, and its impact on health-related quality of life and social productivity.
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Affiliation(s)
- S Morioka
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; Emerging and Reemerging Infectious Diseases, Graduate School of Medicine, Tohoku University, Sendai, Japan; AMR Clinical Reference Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan.
| | - S Tsuzuki
- AMR Clinical Reference Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - M Suzuki
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - M Terada
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Akashi
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Y Osanai
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - C Kuge
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - M Sanada
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - K Tanaka
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - T Maruki
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - K Takahashi
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - S Saito
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - K Hayakawa
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; AMR Clinical Reference Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - K Teruya
- AIDS Clinical Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - M Hojo
- Division of Respiratory Medicine, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - N Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; AMR Clinical Reference Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
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29
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Abbott R, Abe H, Acernese F, Ackley K, Adhikari N, Adhikari R, Adkins V, Adya V, Affeldt C, Agarwal D, Agathos M, Agatsuma K, Aggarwal N, Aguiar O, Aiello L, Ain A, Ajith P, Akutsu T, Albanesi S, Alfaidi R, Allocca A, Altin P, Amato A, Anand C, Anand S, Ananyeva A, Anderson S, Anderson W, Ando M, Andrade T, Andres N, Andrés-Carcasona M, Andrić T, Angelova S, Ansoldi S, Antelis J, Antier S, Apostolatos T, Appavuravther E, Appert S, Apple S, Arai K, Araya A, Araya M, Areeda J, Arène M, Aritomi N, Arnaud N, Arogeti M, Aronson S, Arun K, Asada H, Asali Y, Ashton G, Aso Y, Assiduo M, Melo SADS, Aston S, Astone P, Aubin F, AultONeal K, Austin C, Babak S, Badaracco F, Bader M, Badger C, Bae S, Bae Y, Baer A, Bagnasco S, Bai Y, Baird J, Bajpai R, Baka T, Ball M, Ballardin G, Ballmer S, Balsamo A, Baltus G, Banagiri S, Banerjee B, Bankar D, Barayoga J, Barbieri C, Barish B, Barker D, Barneo P, Barone F, Barr B, Barsotti L, Barsuglia M, Barta D, Bartlett J, Barton M, Bartos I, Basak S, Bassiri R, Basti A, Bawaj M, Bayley J, Mills J, Milotti E, Minenkov Y, Mio N, Mir L, Miravet-Tenés M, Mishkin A, Mishra C, Mishra T, Mistry T, Bazzan M, Mitra S, Mitrofanov V, Mitselmakher G, Mittleman R, Miyakawa O, Miyo K, Miyoki S, Mo G, Modafferi L, Moguel E, Becher B, Mogushi K, Mohapatra S, Mohite S, Molina I, Molina-Ruiz M, Mondin M, Montani M, Moore C, Moragues J, Moraru D, Bécsy B, Morawski F, More A, Moreno C, Moreno G, Mori Y, Morisaki S, Morisue N, Moriwaki Y, Mours B, Mow-Lowry C, Bedakihale V, Mozzon S, Muciaccia F, Mukherjee A, Mukherjee D, Mukherjee S, Mukherjee S, Mukherjee S, Mukund N, Mullavey A, Munch J, Beirnaert F, Muñiz E, Murray P, Musenich R, Muusse S, Nadji S, Nagano K, Nagar A, Nakamura K, Nakano H, Nakano M, Bejger M, Nakayama Y, Napolano V, Nardecchia I, Narikawa T, Narola H, Naticchioni L, Nayak B, Nayak R, Neil B, Neilson J, Belahcene I, Nelson A, Nelson T, Nery M, Neubauer P, Neunzert A, Ng K, Ng S, Nguyen C, Nguyen P, Nguyen T, Benedetto V, Quynh LN, Ni J, Ni WT, Nichols S, Nishimoto T, Nishizawa A, Nissanke S, Nitoglia E, Nocera F, Norman M, Beniwal D, North C, Nozaki S, Nurbek G, Nuttall L, Obayashi Y, Oberling J, O’Brien B, O’Dell J, Oelker E, Ogaki W, Benjamin M, Oganesyan G, Oh J, Oh K, Oh S, Ohashi M, Ohashi T, Ohkawa M, Ohme F, Ohta H, Okada M, Bennett T, Okutani Y, Olivetto C, Oohara K, Oram R, O’Reilly B, Ormiston R, Ormsby N, O’Shaughnessy R, O’Shea E, Oshino S, Bentley J, Ossokine S, Osthelder C, Otabe S, Ottaway D, Overmier H, Pace A, Pagano G, Pagano R, Page M, Pagliaroli G, BenYaala M, Pai A, Pai S, Pal S, Palamos J, Palashov O, Palomba C, Pan H, Pan KC, Panda P, Pang P, Bera S, Pankow C, Pannarale F, Pant B, Panther F, Paoletti F, Paoli A, Paolone A, Pappas G, Parisi A, Park H, Berbel M, Park J, Parker W, Pascucci D, Pasqualetti A, Passaquieti R, Passuello D, Patel M, Pathak M, Patricelli B, Patron A, Bergamin F, Paul S, Payne E, Pedraza M, Pedurand R, Pegoraro M, Pele A, Arellano FP, Penano S, Penn S, Perego A, Berger B, 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H, Fairhurst S, Fan P, Farah A, Farinon S, Farr B, Farr W, Fauchon-Jones E, Favaro G, Favata M, Fays M, Fazio M, Feicht J, Fejer M, Fenyvesi E, Ferguson D, Fernandez-Galiana A, Ferrante I, Ferreira T, Fidecaro F, Figura P, Fiori A, Fiori I, Fishbach M, Fisher R, Fittipaldi R, Fiumara V, Flaminio R, Floden E, Fong H, Font J, Fornal B, Forsyth P, Franke A, Frasca S, Frasconi F, Freed J, Frei Z, Freise A, Freitas O, Frey R, Fritschel P, Frolov V, Fronzé G, Fujii Y, Fujikawa Y, Fujimoto Y, Fulda P, Fyffe M, Gabbard H, Gabella W, Gadre B, Gair J, Gais J, Galaudage S, Gamba R, Ganapathy D, Ganguly A, Gao D, Gaonkar S, Garaventa B, Núñez CG, García-Quirós C, Garufi F, Gateley B, Gayathri V, Ge GG, Gemme G, Gennai A, George J, Gerberding O, Gergely L, Gewecke P, Ghonge S, Ghosh A, Ghosh A, Ghosh S, Ghosh S, Ghosh T, Giacomazzo B, Giacoppo L, Giaime J, Giardina K, Gibson D, Gier C, Giesler M, Giri P, Gissi F, Gkaitatzis S, Glanzer J, Gleckl A, Godwin P, Goetz E, Goetz R, Gohlke N, Golomb J, 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Lazzaro C, Leaci P, Leavey S, LeBohec S, Lecoeuche Y, Lee E, Lee H, Lee H, Lee K, Lee R, Legred I, Lehmann J, Lemaître A, Lenti M, Leonardi M, Leonova E, Leroy N, Letendre N, Levesque C, Levin Y, Leviton J, Leyde K, Li A, Li B, Li J, Li K, Li P, Li T, Li X, Lin CY, Lin E, Lin FK, Lin FL, Lin H, Lin LC, Linde F, Linker S, Linley J, Littenberg T, Liu G, Liu J, Liu K, Liu X, Llamas F, Lo R, Lo T, London L, Longo A, Lopez D, Portilla ML, Lorenzini M, Loriette V, Lormand M, Losurdo G, Lott T, Lough J, Lousto C, Lovelace G, Lucaccioni J, Lück H, Lumaca D, Lundgren A, Luo LW, Lynam J, Ma’arif M, Macas R, Machtinger J, MacInnis M, Macleod D, MacMillan I, Macquet A, Hernandez IM, Magazzù C, Magee R, Maggiore R, Magnozzi M, Mahesh S, Majorana E, Maksimovic I, Maliakal S, Malik A, Man N, Mandic V, Mangano V, Mansell G, Manske M, Mantovani M, Mapelli M, Marchesoni F, Pina DM, Marion F, Mark Z, Márka S, Márka Z, Markakis C, Markosyan A, Markowitz A, Maros E, Marquina A, Marsat S, Martelli F, Martin I, Martin R, Martinez M, Martinez V, Martinez V, Martinovic K, Martynov D, Marx E, Masalehdan H, Mason K, Massera E, Masserot A, Masso-Reid M, Mastrogiovanni S, Matas A, Mateu-Lucena M, Matichard F, Matiushechkina M, Mavalvala N, McCann J, McCarthy R, McClelland D, McClincy P, McCormick S, McCuller L, McGhee G, McGuire S, McIsaac C, McIver J, McRae T, McWilliams S, Meacher D, Mehmet M, Mehta A, Meijer Q, Melatos A, Melchor D, Mendell G, Menendez-Vazquez A, Menoni C, Mercer R, Mereni L, Merfeld K, Merilh E, Merritt J, Merzougui M, Meshkov S, Messenger C, Messick C, Meyers P, Meylahn F, Mhaske A, Miani A, Miao H, Michaloliakos I, Michel C, Michimura Y, Middleton H, Mihaylov D, Milano L, Miller A, Miller A, Miller B, Millhouse M. Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.042003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Chiba K, Kambayashi R, Onozato M, Goto A, Izumi-Nakaseko H, Takei Y, Matsumoto A, Tanaka K, Kanda Y, Fukushima T, Sugiyama A. Imatinib induces diastolic dysfunction and ventricular early-repolarization delay in the halothane-anesthetized dogs: Class effects of tyrosine kinase inhibitors. J Pharmacol Sci 2022; 150:154-162. [DOI: 10.1016/j.jphs.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/22/2022] [Accepted: 07/28/2022] [Indexed: 10/31/2022] Open
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Yamashita S, Kohta M, Hosoda K, Tanaka J, Matsuo K, Kimura H, Tanaka K, Fujita A, Sasayama T. Absence of the Anterior Communicating Artery on Selective MRA is Associated with New Ischemic Lesions on MRI after Carotid Revascularization. AJNR Am J Neuroradiol 2022; 43:1124-1130. [PMID: 35835591 PMCID: PMC9575412 DOI: 10.3174/ajnr.a7570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/17/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE ICA-selective MRA using a pencil beam presaturation pulse can accurately visualize anterior communicating artery flow. We evaluated the impact of anterior communicating artery flow on the perioperative hemodynamic status and new ischemic lesions after carotid revascularization. MATERIALS AND METHODS Eighty-three patients with carotid artery stenosis were included. We assessed anterior communicating artery flow using ICA-selective MRA. The preoperative hemodynamic status was measured using SPECT. We also measured the change in regional cerebral oxygen saturation after temporary ICA occlusion. New ischemic lesions were evaluated by DWI on the day after treatment. RESULTS Anterior communicating artery flow was detected in 61 patients, but it was not detected in 22 patients. Preoperative cerebrovascular reactivity was significantly higher in patients with (versus without) anterior communicating artery flow with a mean peak systolic velocity of ≥200 cm/s (39.6% [SD, 23.8%] versus 25.2% [SD, 16.4%]; P = .030). The decrease in mean regional cerebral oxygen saturation was significantly greater in patients without (versus with) anterior communicating artery flow (8.5% [SD, 5.6%] versus 3.7% [SD, 3.8%]; P = .002). New ischemic lesions after the procedure were observed in 23 patients. The multivariate logistic regression analysis revealed that anterior communicating artery flow (OR, 0.07; 95% CI, 0.012-0.45; P = .005) was associated with new ischemic lesions. CONCLUSIONS The absence of anterior communicating artery flow influenced the perioperative hemodynamic status in patients with carotid stenosis and was associated with an increased incidence of new ischemic lesions after carotid revascularization.
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Affiliation(s)
- S Yamashita
- From the Department of Neurosurgery (S.Y., M.K., J.T., K.M., H.K., K.T., A.F., T.S.), Kobe University Graduate School of Medicine, Kobe, Japan
| | - M Kohta
- From the Department of Neurosurgery (S.Y., M.K., J.T., K.M., H.K., K.T., A.F., T.S.), Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Hosoda
- Department of Neurosurgery (K.H.), Kobe City Nishi-Kobe Medical Center, Kobe, Japan
| | - J Tanaka
- From the Department of Neurosurgery (S.Y., M.K., J.T., K.M., H.K., K.T., A.F., T.S.), Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Matsuo
- From the Department of Neurosurgery (S.Y., M.K., J.T., K.M., H.K., K.T., A.F., T.S.), Kobe University Graduate School of Medicine, Kobe, Japan
| | - H Kimura
- From the Department of Neurosurgery (S.Y., M.K., J.T., K.M., H.K., K.T., A.F., T.S.), Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Tanaka
- From the Department of Neurosurgery (S.Y., M.K., J.T., K.M., H.K., K.T., A.F., T.S.), Kobe University Graduate School of Medicine, Kobe, Japan
| | - A Fujita
- From the Department of Neurosurgery (S.Y., M.K., J.T., K.M., H.K., K.T., A.F., T.S.), Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Sasayama
- From the Department of Neurosurgery (S.Y., M.K., J.T., K.M., H.K., K.T., A.F., T.S.), Kobe University Graduate School of Medicine, Kobe, Japan
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Masuda S, Kageyama S, Kotoku N, Ninomiya K, Schneider U, Doenst T, Tanaka K, Mey J, Meir M, Mushtaq S, Bartorelli A, Pompilio G, Andreini D, Onuma Y, Serruys P. 462 Comparison Of The Syntax Score 2020 Based On Coronary Artery Computed Tomography (CCTA) With Invasive Coronary Angiography (ICA). J Cardiovasc Comput Tomogr 2022. [DOI: 10.1016/j.jcct.2022.06.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Belsack D, Tanaka K, Buls N, de Mey J. 427 Diagnostic Performance Of Coronary Ct Angiography By 0.23ms Ct Gantry Rotation Time In Patients With High Heart Rates: A Preliminary Study. J Cardiovasc Comput Tomogr 2022. [DOI: 10.1016/j.jcct.2022.06.032] [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: 11/28/2022]
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Hiraoka T, Inose Y, Arikawa T, Ito H, Tanaka K. Passive mode-locking and terahertz frequency comb generation in resonant-tunneling-diode oscillator. Nat Commun 2022; 13:3740. [PMID: 35768420 PMCID: PMC9243027 DOI: 10.1038/s41467-022-31071-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 05/31/2022] [Indexed: 11/09/2022] Open
Abstract
Optical frequency combs in the terahertz frequency range are long-awaited frequency standards for spectroscopy of molecules and high-speed wireless communications. However, a terahertz frequency comb based on a low-cost, energy-efficient, and room-temperature-operating device remains unavailable especially in the frequency range of 0.1 to 3 THz. In this paper, we show that the resonant-tunneling-diode (RTD) oscillator can be passively mode-locked by optical feedback and generate a terahertz frequency comb. The standard deviation of the spacing between the comb lines, i.e., the repetition frequency, is reduced to less than 420 mHz by applying external bias modulation. A simulation model successfully reproduces the mode-locking behavior by including the nonlinear capacitance of RTD and multiple optical feedback. Since the mode-locked RTD oscillator is a simple semiconductor device that operates at room temperature and covers the frequency range of 0.1 to 2 THz (potentially up to 3 THz), it can be used as a frequency standard for future terahertz sensing and wireless communications. The authors report passive mode-locking and frequency-comb generation induced by optical feedback in the resonant-tunneling-diode terahertz oscillator, a semiconductor-based oscillator covering the frequency range of 0.1 to 2 THz.
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Affiliation(s)
- Tomoki Hiraoka
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Sakyo-ku, 606-8502, Japan.
| | - Yuta Inose
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Sakyo-ku, 606-8502, Japan.
| | - Takashi Arikawa
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Sakyo-ku, 606-8502, Japan.,PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, 332-0012, Japan
| | - Hiroshi Ito
- Center for Natural Sciences, Kitasato University, Sagamihara, Minami-ku, 252-0373, Japan
| | - Koichiro Tanaka
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Sakyo-ku, 606-8502, Japan.
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Kashiwagi E, Ono Y, Higashihara H, Tanaka K, Nagai K, Kosai S, Yano H, Tomiyama N. Abstract No. 35 Percutaneous sclerotherapy with OK-432 for lymphocele after pelvic or para-aortic lymphadenectomy: preliminary results. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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36
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Uchida K, Mattoni G, Yonezawa S, Nakamura F, Maeno Y, Tanaka K. High-Order Harmonic Generation and Its Unconventional Scaling Law in the Mott-Insulating Ca_{2}RuO_{4}. Phys Rev Lett 2022; 128:127401. [PMID: 35394320 DOI: 10.1103/physrevlett.128.127401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 01/17/2022] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
Competition and cooperation among orders is at the heart of many-body physics in strongly correlated materials and leads to their rich physical properties. It is crucial to investigate what impact many-body physics has on extreme nonlinear optical phenomena, with the possibility of controlling material properties by light. However, the effect of competing orders and electron-electron correlations on highly nonlinear optical phenomena has not yet been experimentally clarified. Here, we investigated high-order harmonic generation from the Mott-insulating phase of Ca_{2}RuO_{4}. Changing the gap energy in Ca_{2}RuO_{4} as a function of temperature, we observed a strong enhancement of high order harmonic generation at 50 K, increasing up to several hundred times compared to room temperature. We discovered that this enhancement can be well reproduced by an empirical scaling law that depends only on the material gap energy and photon emission energy. Such a scaling law can hardly be explained by the electronic structure change in the single particle model and has not been predicted by previous theoretical studies on HHG in the simple Mott-Hubbard model. Our results suggest that the highly nonlinear optical response of strongly correlated materials is influenced by competition among the multiple degrees of freedom and electron-electron correlations.
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Affiliation(s)
- K Uchida
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - G Mattoni
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - S Yonezawa
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - F Nakamura
- Department of Education and Creation Engineering, Kurume Institute of Technology, Kurume, Fukuoka 830-0052, Japan
| | - Y Maeno
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502, Japan
| | - K Tanaka
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502, Japan
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37
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Kobayashi M, Tanaka K, Ida K, Hayashi Y, Takemura Y, Kinoshita T. Turbulence Spreading into an Edge Stochastic Magnetic Layer Induced by Magnetic Fluctuation and Its Impact on Divertor Heat Load. Phys Rev Lett 2022; 128:125001. [PMID: 35394307 DOI: 10.1103/physrevlett.128.125001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 12/20/2021] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
Turbulence spreading into the edge stochastic magnetic layer induced by magnetic fluctuation is observed at the sharp boundary region in the large helical device. The density fluctuation excited at the sharp boundary region with a large pressure gradient does not propagate into the boundary region due to the blocking of turbulence spreading by the large second derivative of the pressure gradient. Once the magnetic fluctuation appears at the boundary, the density fluctuation begins to penetrate the edge stochastic layer and the second derivative of the pressure gradient also decreases. The increase of density fluctuation in this layer results in the broadening and reduction of the peak divertor heat load. It is demonstrated that magnetic fluctuation plays a key role in controlling the turbulence spreading at the boundary of plasma which contributes to the reduction of divertor heat load.
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Affiliation(s)
- M Kobayashi
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
- National Institute for Fusion Science, SOKENDAI, The Graduate University for Advanced Studies, Toki, Gifu 509-5292, Japan
| | - K Tanaka
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - K Ida
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
- National Institute for Fusion Science, SOKENDAI, The Graduate University for Advanced Studies, Toki, Gifu 509-5292, Japan
| | - Y Hayashi
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - Y Takemura
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - T Kinoshita
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
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Luchian ML, Motoc AI, Lochy S, Belsack D, Boeckstaens S, Geers J, Tanaka K, Scheirlynck E, De Mey J, Allard S, Magne J, Roosens B, Weytjens C, Cosyns B, Droogmans S. Epicardial adipose tissue thickness in COVID-19 hospitalized patients: a tool for risk stratification. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Coronavirus Disease 2019 (COVID-19) impacted public health systems,overwhelming the intensive care units(ICU)(1).Epicardial adipose tissue (EAT) thickness is a potential novel parameter, which can be assessed using standard computer tomography(CT) for the prediction of worse prognosis in COVID-19(2,3).
Purpose
We aimed to investigate the association of right ventricle (RV)-EAT thickness with the need for invasive mechanical ventilation,vasopressor support or ICU admission and in-hospital mortality in COVID-19.
Methods
We analyzed 310 consecutive hospitalized patients with confirmed COVID–19 by RT-PCR, between March and April 2020.EAT thickness was assessed during the acute setting of the disease using low dose non-contrast chest CT.Maximal EAT thickness was determined on axial image series at the level of the RV free wall perpendicular to the surface of the heart(Figure 1).Intra- and interobserver reproducibility for the RV-EAT thickness measurement was assessed in 20 random patients after two weeks,by the primary and a second investigator.Data included demographics,clinical evaluation,comorbidities,treatment and complications.Peak lactate dehydrogenase (LDH), neutrophil-lymphocyte ratio (NLR) and C-reactive protein (CRP) were defined as the highest level during hospitalization.The primary combined endpoint was ICU admission,invasive mechanical ventilation and vasopressor therapy.The secondary outcome was in-hospital mortality.
Results
Median age was 64 years (interquartile range:53 to 79 years,58.1% males).106(34.2%) patients reached the primary endpoint.In-hospital mortality rate was 19.5% (59 patients).Among patients with combined endpoint,the mortality rate was 35.8% (38 patients).RV-EAT thickness was higher in patients with combined endpoint (5.0 ±2.6 mm versus 4.3 ± 2.2 mm, p = 0.021).Additionally, patients with the composite endpoint had more diabetes mellitus (p = 0.028) and history of coronary artery disease (p = 0.020).Multivariable analysis showed that RV-EAT thickness predicted the primary endpoint,irrespective of risk factors and disease severity (p = 0.014,OR 1.157,95%CI 1.030-1.300; p = 0.031,OR 1.146,95%CI 1.013-1.298,respectively)(Figure 2).Moreover, peak CRP and peak LDH were associated with both endpoints(Figure 2).However, RV-EAT thickness was not predictive for mortality (p = 0.561, OR 1.039, 95%CI 0.913-1.183).
Intraobserver and interobserver reproducibility were good
0.88 (95%CI 0.66-0.95) and 0.86 (95%CI 0.65-0.94).
Conclusion
RV-EAT thickness,easily and rapidly assessed by standard low dose non-contrast chest CT was associated with higher incidence of ICU admission, need for mechanical ventilation and vasopressor support in hospitalized COVID-19 patients.Although no independent association between RV-EAT and in-hospital mortality was found, RV-EAT thickness may serve as surrogate marker of severity, before the rise of inflammatory biomarkers and may reflect inflammation changes within the myocardium in COVID-19. Abstract Figure 1. Examples of right ventricle ep Abstract Figure 2. Predictors of invasive mechani
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Affiliation(s)
- ML Luchian
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - AI Motoc
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - S Lochy
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - D Belsack
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - S Boeckstaens
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - J Geers
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - K Tanaka
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - E Scheirlynck
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - J De Mey
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - S Allard
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - J Magne
- Dupuytren University Hospital Centre Limoges, Limoges, France
| | - B Roosens
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - C Weytjens
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - B Cosyns
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - S Droogmans
- University Hospital (UZ) Brussels, Brussels, Belgium
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Segawa M, Iizuka N, Ogihara H, Tanaka K, Nakae H, Usuku K, Hamamoto Y. Construction of a Standardized Tongue Image Database for Diagnostic Education: Development of a Tongue Diagnosis e-Learning System. Front Med Technol 2022; 3:760542. [PMID: 35047962 PMCID: PMC8757883 DOI: 10.3389/fmedt.2021.760542] [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: 10/28/2021] [Accepted: 11/26/2021] [Indexed: 11/13/2022] Open
Abstract
Tongue examination is an important diagnostic method for judging pathological conditions in Kampo (traditional Japanese medicine), but it is not easy for beginners to learn the diagnostic technique. One reason is that there are few objective diagnostic criteria for tongue examination findings, and the educational method for tongue examination is not standardized in Japan, warranting the need for a tongue image database for e-learning systems that could dramatically improve the efficiency of education. Therefore, we constructed a database comprising tongue images whose findings were determined on the basis of votes given by five Kampo medicine specialists (KMSs) and confirmed the educational usefulness of the database for tongue diagnosis e-learning systems. The study was conducted in the following five steps: development of a tongue imaging collection system, collection of tongue images, evaluation and annotation of tongue images, development of a tongue diagnosis e-learning system, and verification of the educational usefulness of this system. Five KMSs evaluated the tongue images obtained from 125 participants in the following eight aspects: (i) tongue body size, (ii) tongue body color, (iii) tongue body dryness and wetness, (iv) tooth marks on the edge of the tongue, (v) cracks on the surface of the tongue, (vi) thickness of tongue coating, (vii) color of tongue coating, and (viii) dryness and wetness of tongue coating. Medical students (MSs) were given a tongue diagnosis test using an e-learning system after a lecture on tongue diagnosis. The cumulative and individual match rates (%) (individual match rates of 100% (5/5), 80% (4/5), and 60% (3/5) are shown in parentheses, respectively) were as follows: (i) tongue body size: 92.8 (26.4/26.4/40.0); (ii) tongue body color: 83.2 (10.4/20.8/52.0); (iii) tongue body dryness and wetness: 88.8 (13.6/34.4/40.8); (iv) tooth marks on the edge of the tongue: 88.8 (6.4/35.2/47.2); (v) cracks on the surface of the tongue: 96.8 (24.0/35.2/37.6); (vi) thickness of tongue coating: 84.8 (7.2/21.6/56.0); (vii) color of tongue coating: 88.0 (15.2/37.6/35.2); and (viii) dryness and wetness of tongue coating: 74.4 (4.8/19.2/50.4). The test showed that the tongue diagnosis ability of MSs who attended a lecture on tongue diagnosis was almost the same as that of KMSs. We successfully constructed a tongue image database standardized for training specialists on tongue diagnosis and confirmed the educational usefulness of the e-learning system using a database. This database will contribute to the standardization and popularization of Kampo education.
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Affiliation(s)
- Makoto Segawa
- Department of Kampo Medicine, Yamaguchi University Hospital, Ube, Japan
| | - Norio Iizuka
- Department of Kampo Medicine, Yamaguchi University Hospital, Ube, Japan.,Yamaguchi Health Examination Center, Yamaguchi, Japan
| | - Hiroyuki Ogihara
- Division of Electrical, Electronic and Information Engineering, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Ube, Japan
| | - Koichiro Tanaka
- Department of Traditional Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Hajime Nakae
- Department of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Koichiro Usuku
- Department of Medical Information Science and Administrative Planning, Kumamoto University Hospital, Kumamoto, Japan
| | - Yoshihiko Hamamoto
- Division of Electrical, Electronic and Information Engineering, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Ube, Japan
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Abstract
The concept of "blood stasis" - called yū xiě in Chinese, Oketsu in Japanese - is one of the unique pathophysiology of traditional medicine that originated in China and inherited in Korea and Japan. This concept is related to the multiple aspects of hemodynamic disorders brought on by quantitative and qualitative changes. It theorizes that the quantitative changes of "blood stasis" are related to peripheral circulatory insufficiency. When chronic qualitative changes of "blood stasis" produce stagnant blood that turns into a pathological product, it could cause inflammation and lead to organic changes. Trauma induced hematomas, that are considered to be a quantitative change of blood, are also a form of blood stasis. The basic medicine research on Keishibukuryogan (KBG)-a Japanese name in Traditional Japanese Medicine (Kampo) for one of the most common anti- "blood stasis" prescriptions, also known as gui-zhi-fu-ling-wan (GFW) in Chinese in Traditional Chinese Medicine (TCM)-indicated that the initiation of quantitative changes was closely related to loss of redox balances on endothelial function induced by oxidative stress. The following qualitative changes were related to coagulopathy, hyper viscosity; anti-platelet aggregation, lipid metabolism; a regulation of systemic leptin level and/or lipid metabolism, inflammatory factor; cyclooxygenase-1,2 (COX-1, 2), interleukin-6, 8 tumor necrosis factor-α, macrophage infiltration, hyperplasia, tissue fibrosis and sclerosis caused by transforming growth factor-β1 and fibronectin, the dysfunction of regulated cell deaths, such as, apoptosis, autophagy, ferroptosis and ovarian hormone imbalance. Clinically, KBG was often used for diseases related to Obstetrics and Gynecology, Endocrine Metabolism, Rheumatology and Dermatology. In this review, we give an overview of the mechanism and its current clinical application of KBG through a summary of the basic and clinical research and discuss future perspective.
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Affiliation(s)
- Koichiro Tanaka
- Department of Traditional Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Koki Chiba
- Department of Traditional Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Kazuhiko Nara
- Department of Traditional Medicine, Faculty of Medicine, Toho University, Tokyo, Japan
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Shimada R, Yamasaki M, Tanaka K, Makino T, Doki Y, Umeshita K. Changes in the quality of life score following preoperative chemotherapy in elderly patients with esophageal cancer. Esophagus 2022; 19:113-119. [PMID: 34273018 DOI: 10.1007/s10388-021-00862-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 07/11/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND Various functions in elderly patients with esophageal cancer deteriorate easily and their quality of life can be adversely affected by treatment. The age groups covered in previous studies are wide, and the impact on the elderly individuals is unknown. This study examined changes in quality of life scores after preoperative chemotherapy to clarify aspects of physical, psychological, and social quality of life in elderly patients with esophageal cancer. METHODS Thirty-six patients aged over 65 years, who were scheduled to undergo preoperative chemotherapy for esophageal cancer surgery, were enrolled. The survey questionnaire comprised the EORTC QLQ-C30 Japanese Language Version, EORTC QLQ-OES 18 Japanese Language Version, and G8. The surveys were conducted before chemotherapy (pre-CT) and after chemotherapy (post-CT). RESULTS In the functional scale of QLQ-C 30, physical functioning decreased significantly, while emotional functioning increased significantly post-CT (p = 0.021, p = 0.030, respectively). Global health status was not changed. In QLQ-OES18, the mean symptom scale score decreased significantly for dysphagia, trouble swallowing saliva, choking, eating, reflux, and pain post-CT (p = 0.014, p = 0.034, p = 0.033, p = 0.022, p = 0.026, p = 0.016, respectively). The mean G8 score decreased significantly from 11.7 to 10.7 (p = 0.022) post-CT, but the proportion of patients with dysfunction decreased. CONCLUSIONS Quality of life scores of elderly patients with esophageal cancer who received preoperative chemotherapy decreased in terms of physical function but improved in terms of esophageal cancer symptoms and mental function. Our results suggest that alleviation of symptoms contributed to the improvements in mental health.
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Affiliation(s)
- R Shimada
- Faculty of Health and Medical Sciences, Kyoto University of Advanced Science, 18 Gotanda-cho, Yamanouchi, Ukyo-ku, Kyoto, 615-8577, Japan.
| | - M Yamasaki
- Department of Surgery, Kansai Medical University, Osaka, Japan
| | - K Tanaka
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - T Makino
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Y Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - K Umeshita
- Osaka International Cancer Institute, Osaka, Japan
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Yamane N, Ikeda A, Tomooka K, Saito I, Maruyama K, Eguchi E, Suyama K, Fujii A, Shiba T, Tanaka K, Kooka A, Nakamura S, Kajita M, Kawamura R, Takata Y, Osawa H, Steptoe A, Tanigawa T. Salivary Alpha-Amylase Activity and Mild Cognitive Impairment among Japanese Older Adults: The Toon Health Study. J Prev Alzheimers Dis 2022; 9:752-757. [PMID: 36281680 DOI: 10.14283/jpad.2022.51] [Citation(s) in RCA: 2] [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] [Indexed: 06/16/2023]
Abstract
BACKGROUND There is growing interest in examining objective markers for early identification and behavioral intervention to prevent dementia and mild cognitive impairment in clinical and community settings. OBJECTIVE To investigate the association between salivary alpha-amylase as an objective measure of psychological stress response and mild cognitive impairment for the implication of psychological stress in the development of mild cognitive impairment. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional study involved 865 participants aged ≥ 65 years. A saliva sample was collected in the morning, and the levels of salivary alpha-amylase were assayed. Mild cognitive impairment was evaluated using the Japanese version of the Montreal Cognitive Assessment; a score < 26 was indicative of mild cognitive impairment. A multivariable logistic regression model was used to examine the association of salivary alpha-amylase and mild cognitive impairment after adjusting for age, sex, current drinking status, current smoking status, body mass index, hypertension, diabetes mellitus, physical activity, education, social support, social network, and heart rate variability. RESULTS Salivary alpha-amylase was associated with mild cognitive impairment (the multivariable-adjusted odds ratio [95% confidence interval] for the 1-standard deviation increment of log-transformed salivary alpha-amylase was 1.24 [1.07-1.44]). This significant association persisted after adjusting for various confounding factors. CONCLUSION Elevation of salivary alpha-amylase was associated with mild cognitive impairment among Japanese community-dwelling older adults. This suggests that salivary alpha-amylase is a useful objective marker of psychological stress responses associated with mild cognitive impairment.
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Affiliation(s)
- N Yamane
- Takeshi Tanigawa, MD, PhD, Department of Public Health, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan. Phone: +81 (3) 5802-1049 Fax: +81 (3) 3814-0305,
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Takada K, Takamori S, Shimokawa M, Toyokawa G, Shimamatsu S, Hirai F, Tagawa T, Okamoto T, Hamatake M, Tsuchiya-Kawano Y, Otsubo K, Inoue K, Yoneshima Y, Tanaka K, Okamoto I, Nakanishi Y, Mori M. Assessment of the albumin-bilirubin grade as a prognostic factor in patients with non-small-cell lung cancer receiving anti-PD-1-based therapy. ESMO Open 2021; 7:100348. [PMID: 34942439 PMCID: PMC8695291 DOI: 10.1016/j.esmoop.2021.100348] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 04/18/2021] [Revised: 09/28/2021] [Accepted: 11/20/2021] [Indexed: 02/08/2023] Open
Abstract
Introduction The albumin-bilirubin (ALBI) grade is a novel indicator of the liver function. Some studies showed that the ALBI grade was a prognostic and predictive biomarker for the efficacy of chemotherapy in cancer patients. The association between the ALBI grade and outcomes in patients with non-small-cell lung cancer (NSCLC) treated with cancer immunotherapy, however, is poorly understood. Methods We retrospectively enrolled 452 patients with advanced or recurrent NSCLC who received anti-programmed cell death protein 1 (PD-1)-based therapy between 2016 and 2019 at three medical centers in Japan. The ALBI score was calculated from albumin and bilirubin measured at the time of treatment initiation and was stratified into three categories, ALBI grade 1-3, with reference to previous reports. We examined the clinical impact of the ALBI grade on the outcomes of NSCLC patients receiving anti-PD-1-based therapy using Kaplan–Meier survival curve analysis with log-rank test and Cox proportional hazards regression analysis. Results The classifications of the 452 patients were as follows: grade 1, n = 158 (35.0%); grade 2, n = 271 (60.0%); and grade 3, n = 23 (5.0%). Kaplan–Meier survival curve analysis showed that the ALBI grade was significantly associated with progression-free survival and overall survival. Moreover, Cox regression analysis revealed that the ALBI grade was an independent prognostic factor for progression-free survival and overall survival. Conclusion The ALBI grade was an independent prognostic factor for survival in patients with advanced or recurrent NSCLC who receive anti-PD-1-based therapy. These findings should be validated in a prospective study with a larger sample size. ALBI grade is calculated from albumin and bilirubin. We evaluated the impact of ALBI grade on survival in NSCLC patients receiving immune checkpoint inhibitors. ALBI grade was an independent prognostic factor for progression-free survival (PFS) and overall survival (OS). ALBI grade effectively stratified PFS and OS in patients with performance status 1-3. ALBI grade was significantly associated with PFS and OS, regardless of programmed death ligand-1.
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Affiliation(s)
- K Takada
- Department of Thoracic Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan.
| | - S Takamori
- Department of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
| | - M Shimokawa
- Department of Biostatistics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Clinical Research Institute, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - G Toyokawa
- Department of Thoracic Surgery, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - S Shimamatsu
- Department of Thoracic Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
| | - F Hirai
- Department of Thoracic Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
| | - T Tagawa
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Okamoto
- Department of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - M Hamatake
- Department of Thoracic Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
| | - Y Tsuchiya-Kawano
- Department of Respiratory Medicine, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
| | - K Otsubo
- Department of Respiratory Medicine, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
| | - K Inoue
- Department of Respiratory Medicine, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
| | - Y Yoneshima
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Tanaka
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - I Okamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Nakanishi
- Department of Respiratory Medicine, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
| | - M Mori
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Warmer F, Tanaka K, Xanthopoulos P, Nunami M, Nakata M, Beidler CD, Bozhenkov SA, Beurskens MNA, Brunner KJ, Ford OP, Fuchert G, Funaba H, Geiger J, Gradic D, Ida K, Igami H, Kubo S, Langenberg A, Laqua HP, Lazerson S, Morisaki T, Osakabe M, Pablant N, Pasch E, Peterson B, Satake S, Seki R, Shimozuma T, Smith HM, Stange T, Stechow AV, Sugama H, Suzuki Y, Takahashi H, Tokuzawa T, Tsujimura T, Turkin Y, Wolf RC, Yamada I, Yanai R, Yasuhara R, Yokoyama M, Yoshimura Y, Yoshinuma M, Zhang D. Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons. Phys Rev Lett 2021; 127:225001. [PMID: 34889640 DOI: 10.1103/physrevlett.127.225001] [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: 03/31/2021] [Revised: 07/30/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
We assess the magnetic field configuration in modern fusion devices by comparing experiments with the same heating power, between a stellarator and a heliotron. The key role of turbulence is evident in the optimized stellarator, while neoclassical processes largely determine the transport in the heliotron device. Gyrokinetic simulations elucidate the underlying mechanisms promoting stronger ion scale turbulence in the stellarator. Similar plasma performances in these experiments suggests that neoclassical and turbulent transport should both be optimized in next step reactor designs.
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Affiliation(s)
- Felix Warmer
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - K Tanaka
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- Kyushu University, Interdisciplinary Graduate School of Engineering Sciences, Plasma and Quantum Science and Engineering, Kasuga, Fukuoka 816-8580, Japan
| | - P Xanthopoulos
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - M Nunami
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
- Nagoya University, Graduate School of Science, Nagoya 464-8603, Japan
| | - M Nakata
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - C D Beidler
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - S A Bozhenkov
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - M N A Beurskens
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - K J Brunner
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - O P Ford
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - G Fuchert
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - H Funaba
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
| | - J Geiger
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - D Gradic
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - K Ida
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - H Igami
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
| | - S Kubo
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- Nagoya University, Graduate School of Science, Nagoya 464-8603, Japan
| | - A Langenberg
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - H P Laqua
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - S Lazerson
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - T Morisaki
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - M Osakabe
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - N Pablant
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - E Pasch
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - B Peterson
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
| | - S Satake
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - R Seki
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - T Shimozuma
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
| | - H M Smith
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - T Stange
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - A V Stechow
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - H Sugama
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - Y Suzuki
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - H Takahashi
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - T Tokuzawa
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - T Tsujimura
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - Y Turkin
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - R C Wolf
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
| | - I Yamada
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
| | - R Yanai
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
| | - R Yasuhara
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - M Yokoyama
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - Y Yoshimura
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
| | - M Yoshinuma
- National Institute for Fusion Science, National Institutes on Natural Sciences, Toki, 509-5292, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
| | - D Zhang
- Max-Planck-Institut für Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald, Germany
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Ideta S, Johnston S, Yoshida T, Tanaka K, Mori M, Anzai H, Ino A, Arita M, Namatame H, Taniguchi M, Ishida S, Takashima K, Kojima KM, Devereaux TP, Uchida S, Fujimori A. Hybridization of Bogoliubov Quasiparticles between Adjacent CuO_{2} Layers in the Triple-Layer Cuprate Bi_{2}Sr_{2}Ca_{2}Cu_{3}O_{10+δ} Studied by Angle-Resolved Photoemission Spectroscopy. Phys Rev Lett 2021; 127:217004. [PMID: 34860085 DOI: 10.1103/physrevlett.127.217004] [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: 11/10/2020] [Revised: 07/08/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
Hybridization of Bogoliubov quasiparticles (BQPs) between the CuO_{2} layers in the triple-layer cuprate high-temperature superconductor Bi_{2}Sr_{2}Cu_{2}Cu_{3}O_{10+δ} is studied by angle-resolved photoemission spectroscopy (ARPES). In the superconducting state, an anticrossing gap opens between the outer- and inner-BQP bands, which we attribute primarily to interlayer single-particle hopping with possible contributions from interlayer Cooper pairing. We find that the d-wave superconducting gap of both BQP bands smoothly develops with momentum without an abrupt jump in contrast to a previous ARPES study. Hybridization between the BQPs also gradually increases in going from the off nodal to the antinodal region, which is explained by the momentum dependence of the interlayer single-particle hopping. As possible mechanisms for the enhancement of the superconducting transition temperature, the hybridization between the BQPs as well as the combination of phonon modes of the triple CuO_{2} layers and spin fluctuations represented by a four-well model are discussed.
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Affiliation(s)
- S Ideta
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- UVSOR-III Synchrotron, Institute for Molecular Science, Okazaki 444-8585, Japan
| | - S Johnston
- Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996, USA
| | - T Yoshida
- Department of Human and Environmental studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - K Tanaka
- UVSOR-III Synchrotron, Institute for Molecular Science, Okazaki 444-8585, Japan
| | - M Mori
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - H Anzai
- Graduate School of Engineering, Osaka Prefecture University, Sakai 599-8531, Japan
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - A Ino
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
- Department of Education and Creation Engineering, Kurume Institute of Technology, Fukuoka 2286-66, Japan
| | - M Arita
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - H Namatame
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - M Taniguchi
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - S Ishida
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - K Takashima
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - K M Kojima
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- J-PARC Center and Institute of Materials Structure Science, KEK, Tsukuba, Ibaraki 305-0801, Japan
- Centre for Molecular and Materials Science, TRIUMF, 4004 Vancouver, Canada
| | - T P Devereaux
- Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Laboratory and Stanford University, Menlo Park, California 94025, USA
- Department of Materials Science and Engineering Stanford University, Stanford, California 94305, USA
| | - S Uchida
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - A Fujimori
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Applied Physics, Waseda University, Shinjuku-ku, Tokyo 169-8555, Japan
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Tanaka K, Mitsui H, Shibagaki N, Ogawa Y, Deguchi N, Shimada S, Kawamura T. Two cases of acquired hypertrichosis lanuginosa: rare association with gastric cancer. J Eur Acad Dermatol Venereol 2021; 36:e306-e308. [PMID: 34741763 DOI: 10.1111/jdv.17791] [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: 09/09/2021] [Accepted: 09/30/2021] [Indexed: 11/30/2022]
Affiliation(s)
- K Tanaka
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan.,Department of Dermatology, Yamanashi Kosei Hospital, Yamanashi, Japan
| | - H Mitsui
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - N Shibagaki
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Y Ogawa
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - N Deguchi
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - S Shimada
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - T Kawamura
- Department of Dermatology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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Okada M, Tanaka N, Tanaka K, Hirao Y, Harada S, Onishi T, Koyama Y, Okamura A, Iwakura K, Fujii K, Inoue K. Association between myocardial wall thickness and left ventricular functional recovery after catheter ablation of atrial fibrillation in patients with reduced ejection fraction. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Catheter ablation of atrial fibrillation (AFCA) is an effective treatment to develop left ventricular (LV) functional recovery. However, the degree of recovery differs between individuals due to the different extent of myocardial fibrosis and scarring.
Purpose
To examine whether pre-ablation LV wall thickness (WT) and its regional heterogeneity predict LV functional recovery after AFCA in patients with LV systolic dysfunction.
Methods
Of 3682 consecutive patients who underwent first-time AFCA between January 2012 and September 2020 in our institution, 174 (age, 63±10 years; male, 83%; ischemic cardiomyopathy, 14%) with a baseline LV ejection fraction (LVEF) of <40% were retrospectively evaluated. They were subjected to 256-slice MDCT scanning at baseline and 3 months after AFCA. Baseline WT was evaluated by 16-segment model. Mean and standard deviation (SD) of 16 regional WT were calculated in both end-systolic and end-diastolic phase.
Results
LVEF significantly improved from 30±7% to 57±17% (p<0.001) after AFCA. Increase in LVEF (delta-LVEF) was positively correlated with baseline end-diastolic WT (r=0.31, p<0.001) and negatively correlated with SD of end-systolic WT (r=−0.21, p=0.007). Independent of WT measurements, delta-LVEF was negatively correlated with LV end-diastolic volume (r=−0.42, p<0.001). We created a scoring system to predict the degree of wall motion recovery using the median value of the 3 variables; assigned 1 point each for end-diastolic WT >7.4mm, SD of end-systolic WT <1.61mm, and LV end-diastolic volume <125ml. The model successfully predicted improvement in LVEF after AFCA (0 point (N=13) vs. 1 point (N=72) vs. 2–3 point (N=89), 11±16% vs. 20±17% vs. 33±12%, p<0.001).
Conclusion
Myocardial WT and its regional heterogeneity as well as LV end-diastolic volume predicted functional recovery after AFCA in patients with reduced LVEF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Okada
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - N Tanaka
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - K Tanaka
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - Y Hirao
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - S Harada
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - T Onishi
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - Y Koyama
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - A Okamura
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - K Iwakura
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - K Fujii
- Sakurabashi-Watanabe Hospital, Osaka, Japan
| | - K Inoue
- Sakurabashi-Watanabe Hospital, Osaka, Japan
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Tsugu T, Tanaka K, Belsack D, Devos H, Nagatomo Y, Michiels V, Argacha JF, Cosyns B, Buls N, De Mey J. Effects of left ventricular mass index on computed tomography derived fractional flow reserve in significant obstructive coronary artery disease. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0191] [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
In significant obstructive coronary artery disease (SOCAD), a mismatched assessment of the severity of coronary artery stenosis may occur between invasive coronary angiography and computed tomography (CT) derived fractional flow reserve (FFRCT). The exact mechanisms of unexpected underestimation of FFRCT remain unknown.
Purpose
The aims of this study are (1) to clarify the mechanisms of underestimation on FFRCT; and (2) to identify the predictive factors of FFRCT underestimation above the value of 0.80 in SOCAD vessels.
Methods
A total of 1160 outpatients who underwent CT angiography (CTA) with FFRCT analysis for suspected coronary artery disease (CAD) between January 2017 and June 2020 were evaluated. Among them, 141 consecutive patients who had both CTA coupled to FFRCT analysis and invasive angiogram showing >75% coronary stenosis were included for analysis. Vessels were divided into two groups according to FFRCT at the distal vessel: FFRCT >0.80 (n=12) and FFRCT ≤0.80 (n=153). Vessel-related parameters, including vessel morphology (vessel length and lumen volume) and plaque components (non-calcified plaque volume and calcified plaque volume) and left ventricular (LV) myocardial-related parameters, including LV wall thickness at each site of the myocardium, and LV mass were evaluated semi-automatically.
Results
Vessel morphology and plaque components did not differ between FFRCT >0.80 and ≤0.80, whereas LV wall thickness (average; 10.7±2.7 vs. 8.4±1.6 mm, and maximal; 13.5±3.0 vs. 10.6±1.8 mm, all p value <0.001), LV mass (136.4±38.4 vs. 98.8±26.8 g, p<0.001), and LV mass index (73.8±22.6 vs. 51.8±12.2 g/m2, p<0.001) were significantly higher in FFRCT >0.80. Next, we investigated the parameters that correlated with FFRCT. Of all, vessel morphology and plaque components were not related to FFRCT, whereas maximal LV wall thickness, r=0.24, p=0.01; LV mass, r=0.19. p=0.04; and LV mass index, r=0.30, p=0.001) correlated with FFRCT. In the vessels showing FFRCT >0.80, only LV mass (r=0.84, p=0.005) and LV mass index (r=0.67, p=0.047) correlated with FFRCT. (Figure 1). LV mass index was the strongest predictor of a distal FFRCT of >0.80 with the area under curve (AUC) 0.81, 95% CI 0.62 – 1.00, P<0.0001 and an optimal cut-off value of 66.5 g/m2 sensitivity 77.8%, specificity 89.6% (Figure 2).
Conclusions
FFRCT is affected not by vessel-related parameters but LV myocardial-related parameters in SOCAD. The presence of an excessive LV mass is a major predictor of underestimation of FFRCT in SOCAD vessels. LV myocardial-related parameters should be considered when interpreting numerical values of FFRCT to avoid the possibility of overlooked SOCAD.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
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Affiliation(s)
- T Tsugu
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - K Tanaka
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - D Belsack
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - H Devos
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - Y Nagatomo
- National Defense Medical College Hospital, Department of Cardiology, Tokorozawa, Japan
| | - V Michiels
- Universitair Ziekenhuis Brussel, Cardiology, Centrum voor Hart- en Vaatziekten, Brussels, Belgium
| | - J F Argacha
- Universitair Ziekenhuis Brussel, Cardiology, Centrum voor Hart- en Vaatziekten, Brussels, Belgium
| | - B Cosyns
- Universitair Ziekenhuis Brussel, Cardiology, Centrum voor Hart- en Vaatziekten, Brussels, Belgium
| | - N Buls
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - J De Mey
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
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Tsugu T, Tanaka K, Belsack D, Devos H, Nagatomo Y, Michiels V, Argacha JF, Cosyns B, Buls N, De Mey J. Impact of vascular morphology and plaque characteristics on computed tomography derived fractional flow reserve in early stage coronary artery disease. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0190] [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
FFRCT gradually decreases from the proximal to the distal part of a vessel and reach the pathological threshold for significant ischemia even in the absence of obstructive coronary artery disease (CAD). The exact mechanisms of such gradual FFRCT decline remain unknown.
Purpose
The aims of this study are (1) to clarify the mechanisms of the gradual decline of computed tomography (CT) derived fractional flow reserve (FFRCT); and (2) to identify the predictive factors of an FFRCT decline below the pathological value of 0.80 in no apparent CAD vessels.
Methods
A total of 1058 outpatients with suspected CAD and who underwent CT angiography (CTA) with FFRCT analysis between January 2017 and December 2019 were evaluated. Among them, 150 consecutive patients who had both a CTA coupled to an FFRCT analysis and an invasive angiogram showing <25% coronary stenosis were included for analysis. Vessels were divided into two groups according to FFRCT at the distal vessel: FFRCT >0.80 (n=317) and FFRCT ≤0.80 (n=114). ΔFFRCT was defined as the magnitude of the change in FFRCT from the proximal to the distal vessel. Plaque characterization and vessel morphology measurements were performed semi-automatically. Vessel constituents were characterized based on Hounsfield units (HU) into lumen volume (<−50 HU), non-calcified plaque (NCP) (−50–150 HU), and calcified plaque (>150 HU).
Results
FFRCT decreased continuously from the proximal to distal across the three major vessels in both FFRCT>0.80 and FFRCT ≤0.80 groups (Figure 1). Compared to FFRCT>0.80 group, NCP volume was significantly higher in all three major vessels in FFRCT ≤0.80 group (210.2±83.6 mm3 vs. 140.9±139.3 mm3 for the RCA, p=0.01; 177.5±150.2 mm3 vs. 133.2±112.2 mm3 for the LAD, p=0.04; 127.6±91.5 mm3 vs. 58.7±57.7 mm3 for the LCX, p<0.01). Next, we investigated the vessel parameters that correlated with ΔFFRCT. ΔFFRCT was correlated with lumen volume in FFRCT>0.80 group (r=−0.24, p<0.0001), whereas ΔFFRCT was correlated with NCP volume in FFRCT ≤0.80 group (r=0.42, p<0.001) (Figure 2). An NCP volume above 44.8 mm3 was the strongest predictor of distal FFRCT of ≤0.80 (area under the curve 0.69, p<0.0001, sensitivity 95%, specificity 39%).
Conclusions
FFRCT is affected by vascular morphology and plaque characteristics even in the early stage of coronary artery disease. Our study highlights that subclinical coronary artery disease strongly influences FFRCT by effects unrelated to coronary stenosis. The presence of NCP is a major predictor of the gradual decrease of FFRCT toward pathological values. Anatomical findings as vessel morphology and plaque characteristics should be taken into consideration when interpreting numerical values of FFRCT to avoid unnecessary referrals for invasive coronary angiography or percutaneous coronary intervention.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
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Affiliation(s)
- T Tsugu
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - K Tanaka
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - D Belsack
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - H Devos
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - Y Nagatomo
- National Defense Medical College Hospital, Department of Cardiology, Tokorozawa, Japan
| | - V Michiels
- Universitair Ziekenhuis Brussel, Cardiology, Centrum voor Hart- en Vaatziekten, Brussels, Belgium
| | - J F Argacha
- Universitair Ziekenhuis Brussel, Cardiology, Centrum voor Hart- en Vaatziekten, Brussels, Belgium
| | - B Cosyns
- Universitair Ziekenhuis Brussel, Cardiology, Centrum voor Hart- en Vaatziekten, Brussels, Belgium
| | - N Buls
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
| | - J De Mey
- Universitair Ziekenhuis Brussel, Department of Radiology, Brussels, Belgium
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Hagino H, Tanaka K, Silverman S, McClung M, Gandra SR, Charokopou M, Adachi K, Johnson B, Stollenwerk B. Cost effectiveness of romosozumab versus teriparatide for severe postmenopausal osteoporosis in Japan. Osteoporos Int 2021; 32:2011-2021. [PMID: 33772328 DOI: 10.1007/s00198-021-05927-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/15/2021] [Indexed: 12/19/2022]
Abstract
UNLABELLED This study assessed the cost effectiveness of romosozumab versus teriparatide, both sequenced to alendronate, for the treatment of severe postmenopausal osteoporosis in Japan, using bone mineral density (BMD) efficacy data. Results show that romosozumab/alendronate produces greater health benefits at a lower cost than teriparatide/alendronate. INTRODUCTION This study aims to assess the cost effectiveness of romosozumab versus teriparatide, both sequenced to alendronate, for the treatment of severe postmenopausal osteoporosis in Japanese women previously treated with bisphosphonates. METHODS A Markov model was used to assess the relative cost effectiveness of 1 year of romosozumab versus 2 years of teriparatide, both sequenced to alendronate for a total treatment duration of 5 years. Outcomes for a cohort of women with a mean age of 78 years, a T-score ≤-2.5 and a previous fragility fracture were simulated over a lifetime horizon. The analysis was conducted from the perspective of the Japanese healthcare system and used a discount rate of 2% per annum. To inform relative fracture incidence, the bone mineral density (BMD) advantage of romosozumab over teriparatide was translated into relative risks of fracture, using relationships provided by a meta-regression of osteoporosis therapy trials. Outcomes were assessed in terms of lifetime costs (2020 US dollars) and quality-adjusted life years (QALYs). RESULTS Base case results showed that, compared with teriparatide/alendronate, romosozumab/alendronate reduced costs by $5134 per patient and yielded 0.045 additional QALYs. Scenario analyses and probabilistic sensitivity analysis confirmed that results are robust to uncertainty in model assumptions and inputs. CONCLUSION Results show that romosozumab/alendronate produces greater health benefits at a lower total cost than teriparatide/alendronate.
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Affiliation(s)
- H Hagino
- Tottori University, Tottori, Japan
| | - K Tanaka
- Kobe Gakuin University, Kobe, Japan
| | | | - M McClung
- Oregon Osteoporosis Center, Portland, OR, USA
- Mary McKillop Center for Health Research, Australian Catholic University, Melbourne, Australia
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