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Oh I, Hatano K, Ikeda T, Toda Y, Minakata D, Kawaguchi S, Morita K, Yamamoto C, Ashizawa M, Sato K, Kameda K, Gomyo A, Misaki Y, Kawamura S, Kimura S, Kobayashi H, Sato H, Nakasone H, Ohmine K, Fujiwara S, Kako S, Kanda Y. Phase 2 trial of induction with dasatinib and consolidation with hyper-CVAD plus dasatinib followed by allografting for Ph-positive acute lymphoblastic leukemia in adults. Leuk Res 2024; 137:107438. [PMID: 38278044 DOI: 10.1016/j.leukres.2024.107438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 11/20/2023] [Accepted: 01/08/2024] [Indexed: 01/28/2024]
Affiliation(s)
- Iekuni Oh
- Department of Hematology, Yuai Memorial Hospital, Koga 306-0232, Japan
| | - Kaoru Hatano
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Takashi Ikeda
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Yumiko Toda
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Daisuke Minakata
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Shinichiro Kawaguchi
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Kaoru Morita
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Chihiro Yamamoto
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Masahiro Ashizawa
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Kazuya Sato
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Kazuaki Kameda
- Division of Hematology, Department of Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Japan
| | - Ayumi Gomyo
- Division of Hematology, Department of Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Japan
| | - Yukiko Misaki
- Division of Hematology, Department of Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Japan
| | - Shunto Kawamura
- Division of Hematology, Department of Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Japan
| | - Shunichi Kimura
- Division of Hematology, Department of Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Japan
| | - Hiroyuki Kobayashi
- Department of Hematology, Nasu Red Cross Hospital, Tochigi 324-8686, Japan
| | - Hiroyuki Sato
- Department of Hematology, Saitama Red Cross Hospital, Saitama 330-8553, Japan
| | - Hideki Nakasone
- Division of Hematology, Department of Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Japan
| | - Ken Ohmine
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Shinichiro Fujiwara
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Shinichi Kako
- Division of Hematology, Department of Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Japan
| | - Yoshinobu Kanda
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi 329-0498, Japan; Division of Hematology, Department of Medicine, Jichi Medical University Saitama Medical Center, Saitama 330-8503, Japan.
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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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Ryder M, Sabarai A, Saccà C, Sachson R, Sadler E, Safiee NS, Sahani M, Saillant A, Saini J, Saito C, Saito S, Sakaguchi K, Sakai M, Salim H, Salviani C, Sammons E, Sampson A, Samson F, Sandercock P, Sanguila S, Santorelli G, Santoro D, Sarabu N, Saram T, Sardell R, Sasajima H, Sasaki T, Satko S, Sato A, Sato D, Sato H, Sato H, Sato J, Sato T, Sato Y, Satoh M, Sawada K, Schanz M, Scheidemantel F, Schemmelmann M, Schettler E, Schettler V, Schlieper GR, Schmidt C, Schmidt G, Schmidt U, Schmidt-Gurtler H, Schmude M, Schneider A, Schneider I, Schneider-Danwitz C, Schomig M, Schramm T, Schreiber A, Schricker S, Schroppel B, Schulte-Kemna L, Schulz E, Schumacher B, Schuster A, Schwab A, Scolari F, Scott A, Seeger W, Seeger W, Segal M, Seifert L, Seifert M, Sekiya M, Sellars R, Seman MR, Shah S, Shah S, Shainberg L, Shanmuganathan M, Shao F, Sharma K, Sharpe C, Sheikh-Ali M, Sheldon J, Shenton C, Shepherd A, Shepperd M, Sheridan R, Sheriff Z, Shibata Y, Shigehara T, Shikata K, Shimamura K, Shimano H, Shimizu Y, Shimoda H, Shin K, Shivashankar G, Shojima N, Silva R, Sim CSB, Simmons K, Sinha S, Sitter T, Sivanandam S, Skipper M, Sloan K, Sloan L, Smith R, Smyth J, Sobande T, Sobata M, Somalanka S, Song X, Sonntag F, Sood B, Sor SY, Soufer J, Sparks H, Spatoliatore G, Spinola T, Squyres S, Srivastava A, Stanfield J, Staplin N, Staylor K, Steele A, Steen O, Steffl D, Stegbauer J, Stellbrink C, Stellbrink E, Stevens W, Stevenson A, Stewart-Ray V, Stickley J, Stoffler D, Stratmann B, Streitenberger S, Strutz F, Stubbs J, Stumpf J, Suazo N, Suchinda P, Suckling R, Sudin A, Sugamori K, Sugawara H, Sugawara K, Sugimoto D, Sugiyama H, Sugiyama H, Sugiyama T, Sullivan M, Sumi M, Suresh N, Sutton D, Suzuki H, Suzuki R, Suzuki Y, Suzuki Y, Suzuki Y, Swanson E, Swift P, Syed S, Szerlip H, Taal M, Taddeo M, Tailor C, Tajima K, Takagi M, Takahashi K, Takahashi K, Takahashi M, Takahashi T, Takahira E, Takai T, Takaoka M, Takeoka J, Takesada A, Takezawa M, Talbot M, Taliercio J, Talsania T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Sato T, Yamaguchi T, Aoki K, Kajiwara C, Kimura S, Maeda T, Yoshizawa S, Sasaki M, Murakami H, Hisatsune J, Sugai M, Ishii Y, Tateda K, Urita Y. Whole-genome sequencing analysis of molecular epidemiology and silent transmissions causing meticillin-resistant Staphylococcus aureus bloodstream infections in a university hospital. J Hosp Infect 2023; 139:141-149. [PMID: 37301229 DOI: 10.1016/j.jhin.2023.05.014] [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: 03/03/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND The emergence of novel genomic-type clones, such as community-associated meticillin-resistant Staphylococcus aureus (MRSA) and livestock-associated MRSA, and their invasion into hospitals have become major concerns worldwide; however, little information is available regarding the prevalence of MRSA in Japan. Whole-genome sequencing (WGS) has been conducted to analyse various pathogens worldwide. Therefore, it is important to establish a genome database of clinical MRSA isolates available in Japan. AIM A molecular epidemiological analysis of MRSA strains isolated from bloodstream-infected patients in a Japanese university hospital was conducted using WGS and single-nucleotide polymorphism (SNP) analysis. Additionally, through a review of patients' clinical characteristics, the effectiveness of SNP analysis as a tool for detecting silent nosocomial transmission that may be missed by other methods was evaluated in diverse settings and various time points of detection. METHODS Polymerase-chain-reaction-based staphylococcal cassette chromosome mec (SCCmec) typing was performed using 135 isolates obtained between 2014 and 2018, and WGS was performed using 88 isolates obtained between 2015 and 2017. FINDINGS SCCmec type II strains, prevalent in 2014, became rare in 2018, whereas the prevalence of SCCmec type IV strains increased from 18.75% to 83.87% of the population, and became the dominant clones. Clonal complex (CC) 5 CC8 and CC1 were detected between 2015 and 2017, with CC1 being dominant. In 88 cases, SNP analyses revealed nosocomial transmissions among 20 patients which involved highly homologous strains. CONCLUSIONS Routine monitoring of MRSA by whole-genome analysis is effective not only for gaining knowledge regarding molecular epidemiology, but also for detecting silent nosocomial transmission.
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Affiliation(s)
- T Sato
- Department of General Medicine and Emergency Care, Toho University Graduate School of Medicine, Tokyo, Japan; Department of General Medicine and Emergency Care, Toho University Omori Medical Centre, Tokyo, Japan.
| | - T Yamaguchi
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan.
| | - K Aoki
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - C Kajiwara
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - S Kimura
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - T Maeda
- Department of General Medicine and Emergency Care, Toho University Omori Medical Centre, Tokyo, Japan
| | - S Yoshizawa
- Department of Clinical Laboratories, Toho University Omori Medical Centre, Tokyo, Japan
| | - M Sasaki
- Department of Clinical Laboratories, Toho University Omori Medical Centre, Tokyo, Japan
| | - H Murakami
- Department of Clinical Laboratories, Toho University Omori Medical Centre, Tokyo, Japan
| | - J Hisatsune
- National Institute of Infectious Diseases, Tokyo, Japan
| | - M Sugai
- National Institute of Infectious Diseases, Tokyo, Japan
| | - Y Ishii
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - K Tateda
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan; Department of Clinical Laboratories, Toho University Omori Medical Centre, Tokyo, Japan
| | - Y Urita
- Department of General Medicine and Emergency Care, Toho University Omori Medical Centre, Tokyo, Japan
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Niwase T, Watanabe YX, Hirayama Y, Mukai M, Schury P, Andreyev AN, Hashimoto T, Iimura S, Ishiyama H, Ito Y, Jeong SC, Kaji D, Kimura S, Miyatake H, Morimoto K, Moon JY, Oyaizu M, Rosenbusch M, Taniguchi A, Wada M. Discovery of New Isotope ^{241}U and Systematic High-Precision Atomic Mass Measurements of Neutron-Rich Pa-Pu Nuclei Produced via Multinucleon Transfer Reactions. Phys Rev Lett 2023; 130:132502. [PMID: 37067317 DOI: 10.1103/physrevlett.130.132502] [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: 11/21/2022] [Revised: 01/26/2023] [Accepted: 02/16/2023] [Indexed: 06/19/2023]
Abstract
The new isotope ^{241}U was synthesized and systematic atomic mass measurements of nineteen neutron-rich Pa-Pu isotopes were performed in the multinucleon transfer reactions of the ^{238}U+^{198}Pt system at the KISS facility. The present experimental results demonstrate the crucial role of the multinucleon transfer reactions for accessing unexplored neutron-rich actinide isotopes toward the N=152 shell gap in this region of nuclides.
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Affiliation(s)
- T Niwase
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - Y X Watanabe
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - Y Hirayama
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - M Mukai
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - P Schury
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - A N Andreyev
- School of Physics, Engineering and Technology, University of York, York YO10 5DD, United Kingdom
| | - T Hashimoto
- Institute for Basic Science, 70, Yuseong-daero 1689-gil, Yusung-gu, Daejeon 43000, Korea
| | - S Iimura
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - H Ishiyama
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - Y Ito
- Advanced Science Research Center, Japan Atomic Energy Agency, Ibaraki 319-1195, Japan
| | - S C Jeong
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - D Kaji
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - S Kimura
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - H Miyatake
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - K Morimoto
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - J-Y Moon
- Institute for Basic Science, 70, Yuseong-daero 1689-gil, Yusung-gu, Daejeon 43000, Korea
| | - M Oyaizu
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - M Rosenbusch
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - A Taniguchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Osaka 590-0494, Japan
| | - M Wada
- Wako Nuclear Science Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
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Kimura S, Suzuki M, Nakamaru Y, Kano S, Watanabe M, Honma A, Nakazono A, Tsushima N, Hatakeyama S, Homma A. TRIM27 expression is associated with poor prognosis in sinonasal mucosal melanoma. Rhinology 2023:3062. [PMID: 36891983 DOI: 10.4193/rhin22.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
BACKGROUND Tripartite motif-containing 27 (TRIM27) has been implicated in the progression of various cancers. However, the role of TRIM27 in sinonasal mucosal melanoma (SNMM) remains poorly understood. MATERIALS & METHODS We retrospectively examined 28 patients with SNMM treated with between 2003 and 2021. We undertook immunohistochemical analysis of TRIM27, Ki-67, and p-Akt1 expression in SNMM tissues. We also investigated the relationship between TRIM27 expression and clinical characteristics, prognosis, Ki-67 as a tumor growth potential marker, and p-Akt1 as one of the prognostic factors in mucosal melanoma. RESULTS TRIM27 expression was significantly higher in T4 disease than in T3 disease and was higher in stage IV than in stage III. Patients with high-TRIM27 SNMM had a significantly poorer prognosis in terms of overall survival (OS) and disease-free survival.There was also a significantly higher rate of distant metastasis. Univariate analysis for OS revealed that TRIM27 and T classification were significant poor prognostic factors. In addition, the Ki-67 positive score and the p-Akt1 total staining score were significantly higher in the high-TRIM27 group than in the low-TRIM27 group. CONCLUSIONS High TRIM27 expression in SNMM was associated with advanced T classification, poor prognosis and distant metastasis. We suggest that TRIM27 has potential as a novel biomarker for prognosis in SNMM.
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Affiliation(s)
- S Kimura
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - M Suzuki
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Y Nakamaru
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - S Kano
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - M Watanabe
- Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - A Honma
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - A Nakazono
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - N Tsushima
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - S Hatakeyama
- Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - A Homma
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
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Barutta F, Bellini S, Kimura S, Hase K, Corbetta B, Corbelli A, Fiordaliso F, Bruno S, Biancone L, Barreca A, Papotti M, Hirsh E, Martini M, Gambino R, Durazzo M, Ohno H, Gruden G. Protective effect of the tunneling nanotube-TNFAIP2/M-sec system on podocyte autophagy in diabetic nephropathy. Autophagy 2023; 19:505-524. [PMID: 35659195 PMCID: PMC9851239 DOI: 10.1080/15548627.2022.2080382] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Podocyte injury leading to albuminuria is a characteristic feature of diabetic nephropathy (DN). Hyperglycemia and advanced glycation end products (AGEs) are major determinants of DN. However, the underlying mechanisms of podocyte injury remain poorly understood. The cytosolic protein TNFAIP2/M-Sec is required for tunneling nanotubes (TNTs) formation, which are membrane channels that transiently connect cells, allowing organelle transfer. Podocytes express TNFAIP2 and form TNTs, but the potential relevance of the TNFAIP2-TNT system in DN is unknown. We studied TNFAIP2 expression in both human and experimental DN and the renal effect of tnfaip2 deletion in streptozotocin-induced DN. Moreover, we explored the role of the TNFAIP2-TNT system in podocytes exposed to diabetes-related insults. TNFAIP2 was overexpressed by podocytes in both human and experimental DN and exposre of podocytes to high glucose and AGEs induced the TNFAIP2-TNT system. In diabetic mice, tnfaip2 deletion exacerbated albuminuria, renal function loss, podocyte injury, and mesangial expansion. Moreover, blockade of the autophagic flux due to lysosomal dysfunction was observed in diabetes-injured podocytes both in vitro and in vivo and exacerbated by tnfaip2 deletion. TNTs allowed autophagosome and lysosome exchange between podocytes, thereby ameliorating AGE-induced lysosomal dysfunction and apoptosis. This protective effect was abolished by tnfaip2 deletion, TNT inhibition, and donor cell lysosome damage. By contrast, Tnfaip2 overexpression enhanced TNT-mediated transfer and prevented AGE-induced autophagy and lysosome dysfunction and apoptosis. In conclusion, TNFAIP2 plays an important protective role in podocytes in the context of DN by allowing TNT-mediated autophagosome and lysosome exchange and may represent a novel druggable target.Abbreviations: AGEs: advanced glycation end products; AKT1: AKT serine/threonine kinase 1; AO: acridine orange; ALs: autolysosomes; APs: autophagosomes; BM: bone marrow; BSA: bovine serum albumin; CTSD: cathepsin D; DIC: differential interference contrast; DN: diabetic nephropathy; FSGS: focal segmental glomerulosclerosis; HG: high glucose; KO: knockout; LAMP1: lysosomal-associated membrane protein 1; LMP: lysosomal membrane permeabilization; MAP1LC3/LC3: microtubule-associated protein 1 light chain 3; PI3K: phosphoinositide 3-kinase; STZ: streptozotocin; TNF: tumor necrosis factor; TNFAIP2: tumor necrosis factor, alpha-induced protein 2; TNTs: tunneling nanotubes; WT: wild type.
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Affiliation(s)
- F. Barutta
- Department of Medical Sciences, University of Turin, Turin, Italy,CONTACT F. Barutta Department of Medical Sciences, Corso Dogliotti 1410126, Turin, Italy
| | - S. Bellini
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - S. Kimura
- Division of Biochemistry, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - K. Hase
- Division of Biochemistry, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - B. Corbetta
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - A. Corbelli
- Unit of Bioimaging, Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - F. Fiordaliso
- Unit of Bioimaging, Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - S. Bruno
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - L. Biancone
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - A. Barreca
- Division of Pathology, Città della Salute e della Scienza Hospital, Turin, Italy
| | - M.G. Papotti
- Department of Oncology, University of Turin, Turin, Italy
| | - E. Hirsh
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - M. Martini
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - R. Gambino
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - M. Durazzo
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - H. Ohno
- Laboratory for Intestinal Ecosystem, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - G. Gruden
- Department of Medical Sciences, University of Turin, Turin, Italy
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Iimura S, Rosenbusch M, Takamine A, Tsunoda Y, Wada M, Chen S, Hou DS, Xian W, Ishiyama H, Yan S, Schury P, Crawford H, Doornenbal P, Hirayama Y, Ito Y, Kimura S, Koiwai T, Kojima TM, Koura H, Lee J, Liu J, Michimasa S, Miyatake H, Moon JY, Naimi S, Nishimura S, Niwase T, Odahara A, Otsuka T, Paschalis S, Petri M, Shimizu N, Sonoda T, Suzuki D, Watanabe YX, Wimmer K, Wollnik H. Study of the N=32 and N=34 Shell Gap for Ti and V by the First High-Precision Multireflection Time-of-Flight Mass Measurements at BigRIPS-SLOWRI. Phys Rev Lett 2023; 130:012501. [PMID: 36669221 DOI: 10.1103/physrevlett.130.012501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
The atomic masses of ^{55}Sc, ^{56,58}Ti, and ^{56-59}V have been determined using the high-precision multireflection time-of-flight technique. The radioisotopes have been produced at RIKEN's Radioactive Isotope Beam Factory (RIBF) and delivered to the novel designed gas cell and multireflection system, which has been recently commissioned downstream of the ZeroDegree spectrometer following the BigRIPS separator. For ^{56,58}Ti and ^{56-59}V, the mass uncertainties have been reduced down to the order of 10 keV, shedding new light on the N=34 shell effect in Ti and V isotopes by the first high-precision mass measurements of the critical species ^{58}Ti and ^{59}V. With the new precision achieved, we reveal the nonexistence of the N=34 empirical two-neutron shell gaps for Ti and V, and the enhanced energy gap above the occupied νp_{3/2} orbit is identified as a feature unique to Ca. We perform new Monte Carlo shell model calculations including the νd_{5/2} and νg_{9/2} orbits and compare the results with conventional shell model calculations, which exclude the νg_{9/2} and the νd_{5/2} orbits. The comparison indicates that the shell gap reduction in Ti is related to a partial occupation of the higher orbitals for the outer two valence neutrons at N=34.
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Affiliation(s)
- S Iimura
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
- Department of Physics, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Tokyo 171-8501, Japan
| | - M Rosenbusch
- Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - A Takamine
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - Y Tsunoda
- Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8577, Japan
| | - M Wada
- Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - S Chen
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - D S Hou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - W Xian
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - H Ishiyama
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - S Yan
- Institute of Mass Spectrometry and Atmospheric Environment, Jinan University, Guangzhou 510632, China
| | - P Schury
- Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - H Crawford
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94523, USA
| | - P Doornenbal
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - Y Hirayama
- Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - Y Ito
- Advanced Science Research Center, Japan Atomic Energy Agency, Ibaraki 319-1195, Japan
| | - S Kimura
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - T Koiwai
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - T M Kojima
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - H Koura
- Advanced Science Research Center, Japan Atomic Energy Agency, Ibaraki 319-1195, Japan
| | - J Lee
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - J Liu
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong, China
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - S Michimasa
- Center of Nuclear Study (CNS), The University of Tokyo, Bunkyo 113-0033, Japan
| | - H Miyatake
- Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - J Y Moon
- Institute for Basic Science, 70, Yuseong-daero 1689-gil, Yusung-gu, Daejeon 305-811, Korea
| | - S Naimi
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - S Nishimura
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - T Niwase
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
- Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - A Odahara
- Department of Physics, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - T Otsuka
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, Ibaraki 319-1195, Japan
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - S Paschalis
- School of Physics, Engineering, and Technology, University of York, York YO10 5DD, United Kingdom
| | - M Petri
- School of Physics, Engineering, and Technology, University of York, York YO10 5DD, United Kingdom
| | - N Shimizu
- Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8577, Japan
| | - T Sonoda
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - D Suzuki
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - Y X Watanabe
- Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Wako, Saitama 351-0198, Japan
| | - K Wimmer
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - H Wollnik
- New Mexico State University, Las Cruces, New Mexico 88001, USA
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9
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Sawada Y, Kimura S, Watanabe K, Yamaguchi Y, Arima T, Kimura T. Nonreciprocal Directional Dichroism in Magnetoelectric Spin Glass. Phys Rev Lett 2022; 129:217201. [PMID: 36461975 DOI: 10.1103/physrevlett.129.217201] [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: 04/11/2022] [Revised: 08/29/2022] [Accepted: 10/18/2022] [Indexed: 06/17/2023]
Abstract
Optical absorption spectra in the visible and near-infrared light were measured for magnetoelectric spin glass Ni_{0.4}Mn_{0.6}TiO_{3} under various field-cooled conditions. Despite the absence of long-range magnetic-dipole order, this spin-glass system exhibits nonreciprocal directional dichroism (NDD) at zero external field after a magnetoelectric field-cooled procedure. This result is distinct from previous studies on NDD in systems with magnetic toroidal moments induced either by long-range magnetic-dipole order or by applying crossed electric and magnetic fields. The present Letter conclusively demonstrates that the observed NDD originates from magnetoelectrically induced ferroic order of magnetic toroidal moments without conventional magnetic-dipole order.
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Affiliation(s)
- Y Sawada
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - S Kimura
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - K Watanabe
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Y Yamaguchi
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - T Arima
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
| | - T Kimura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
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Meyer L, Roy RP, Huang B, Kimura S, Polonen P, Delgado-Martin C, Vincent T, Ryan T, Wood B, Liu Y, Zhang J, Mullighan C, Horton T, Loh M, Devidas M, Raetz E, Hayashi R, Winter S, Dunsmore K, Hunger S, Teachey D, Hermiston M, Olshen AB. A TARGETED GENE EXPRESSION CLASSIFIER IDENTIFIES PEDIATRIC T-ALL PATIENTS AT HIGH RISK FOR END INDUCTION MINIMAL RESIDUAL DISEASE POSITIVITY. Leuk Res 2022. [DOI: 10.1016/s0145-2126(22)00243-0] [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: 11/06/2022]
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11
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Kimura S, Takeshita N, Oyanagi T, Seki D, Jiang W, Hidaka K, Fukumoto S, Takahashi I, Takano-Yamamoto T. HIF-2α Inhibits Ameloblast Differentiation via Hey2 in Tooth Development. J Dent Res 2022; 101:1637-1644. [PMID: 35912776 DOI: 10.1177/00220345221111971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Enamel is the highly mineralized outer layer of teeth; the cells responsible for enamel formation are ameloblasts. Local hypoxia and hypoxia inducible factor (HIF) in embryonic tissues are important to promote normal organogenesis. However, hypoxic state in tooth germs and the roles of HIF in ameloblast differentiation have not been understood. The aim of this study is to clarify the role of HIF in ameloblast differentiation during tooth germ development. We found that tooth germs were under hypoxia and HIF-1α and HIF-2α were expressed in tooth germs in embryonic mice. Then, we used HIF inhibitors to evaluate the function of HIF during tooth germ development. The HIF-2α inhibitor significantly decreased the size of tooth germs in organ culture, while the HIF-1α inhibitor did not apparently affect the size of tooth germs. The HIF-2α inhibitor enhanced the expression of amelogenin, a marker of ameloblast differentiation, in the tooth germs in organ culture and rat dental epithelial SF2 cells. Moreover, we found that the HIF-2α inhibitor-stimulating amelogenin expression was regulated by hes-related family basic helix-loop-helix transcription factor with YRPW motif 2(Hey2) in SF2 cells. These findings suggest that the HIF-2α-Hey2 axis plays an important role in ameloblast differentiation during tooth germ development.
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Affiliation(s)
- S Kimura
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan
| | - N Takeshita
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan.,Section of Orthodontics and Dentofacial Orthopedics, Faculty of Dental Science, Kyushu University, Fukuoka, Fukuoka, Japan
| | - T Oyanagi
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan
| | - D Seki
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan
| | - W Jiang
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan
| | - K Hidaka
- Section of Orthodontics and Dentofacial Orthopedics, Faculty of Dental Science, Kyushu University, Fukuoka, Fukuoka, Japan
| | - S Fukumoto
- Division of Pediatric Dentistry, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan.,Section of Oral Medicine for Children, Faculty of Dental Science, Kyushu University, Fukuoka, Fukuoka, Japan
| | - I Takahashi
- Section of Orthodontics and Dentofacial Orthopedics, Faculty of Dental Science, Kyushu University, Fukuoka, Fukuoka, Japan
| | - T Takano-Yamamoto
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan.,Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
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12
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Kimura S, Gamo H, Katsumi Y, Motohisa J, Tomioka K. InP nanowire light-emitting diodes with different pn-junction structures. Nanotechnology 2022; 33:305204. [PMID: 35395650 DOI: 10.1088/1361-6528/ac659a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
We report on the characterization of wurtzite (WZ) InP nanowire (NW) light-emitting diodes (LEDs) with different pn junctions (axial and radial). The series resistance tended to be smaller in the NW-LED using core-shell InP NWs with a radial pn junction than in the NW-LED using InP NWs with an axial pn junction, indicating that radial pn junctions are more suitable for current injection. The electroluminescence (EL) properties of both NW LEDs revealed that the EL had three peaks originating from the zinc-blende (ZB) phase, WZ phase, and ZB/WZ heterojunction. Transmission electron microscopy showed that the dominant EL in the radial pn junction originated from the ZB/WZ interface across the stacking faults.
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Affiliation(s)
- S Kimura
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics (RCIQE), Hokkaido University, Japan
| | - H Gamo
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics (RCIQE), Hokkaido University, Japan
| | - Y Katsumi
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics (RCIQE), Hokkaido University, Japan
| | - J Motohisa
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics (RCIQE), Hokkaido University, Japan
| | - K Tomioka
- Graduate School of Information Science and Technology and Research Center for Integrated Quantum Electronics (RCIQE), Hokkaido University, Japan
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13
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Kyaw MS, Ebihara A, Maki K, Kimura S, Nakatsukasa T, Htun PH, Thu M, Omori S, Okiji T. Effect of kinematics on the torque/force generation, surface characteristics, and shaping ability of a nickel titanium rotary glide path instrument: an ex-vivo study. Int Endod J 2022; 55:531-543. [PMID: 35263803 DOI: 10.1111/iej.13718] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 03/01/2022] [Accepted: 03/01/2022] [Indexed: 11/30/2022]
Abstract
AIM To evaluate the effect of various rotational motions on the torque/force generation, surface wear, and shaping ability of the ProGlider glide path instrument (Dentsply Sirona). METHODOLOGY Mesiobuccal and mesiolingual canals of mandibular molars were selected based on the canal volume, length, angle of curvature (25°-40°), and radius of curvature (4-8 mm) after micro-computed tomographic scanning. The samples were randomly assigned to four groups (n = 13, each) according to movement kinematics [continuous rotation (CR; 300 rpm), optimum torque reverse motion (OTR; 180° forward and 90° reverse when torque > 0.4 N·cm), time-dependent reciprocal motion (TmR; 180° forward and 90° reverse), and optimum glide path motion (OGP; a combination of 90° forward, 90° reverse, 90° forward, and 120° reverse)]. Instrumentation was performed with an automated root canal instrument and torque/force analysing device. Maximum torque/force values, canal volume changes, and canal-centring ratios at 1, 3, 5, and 7 mm were evaluated. Surface defects (pits, grooves, microcracks, blunt cutting edges, and disruption of cutting edges) and spiral distortion on the ProGlider instrument were scored at the tip and 5 mm short of the tip before and after five consecutive uses with scanning electron microscopy. The Kruskal-Wallis test followed by Dunn's post-test with Bonferroni correction and Wilcoxon signed-rank test were used to analyse the data (α = 0.05). RESULTS OGP generated significantly less clockwise torque and greater upward force than other groups (P < 0.05). OGP resulted in significantly fewer surface defects than CR (P < 0.05). In OGP and CR, the tip exhibited more surface defects than 5 mm short of the tip (P < 0.05). CR resulted in greater volume changes than OGP and TmR (P < 0.05) and greater centring ratios (i.e., more deviation) than OGP at 1 mm and OTR at 3 mm (P < 0.05). CONCLUSIONS Under laboratory conditions using the ProGlider instrument, OGP generated significantly less clockwise torque and greater upward force than the other rotatory motions. OGP generated fewer superficial defects than CR, and the three modes of reciprocal rotation better maintained the apical curvature of root canals than CR with the ProGlider instrument.
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Affiliation(s)
- M S Kyaw
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Conservative Dentistry, University of Dental Medicine (Mandalay), Mandalay, Myanmar
| | - A Ebihara
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - K Maki
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - S Kimura
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - T Nakatsukasa
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - P H Htun
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - M Thu
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - S Omori
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - T Okiji
- Department of Pulp Biology and Endodontics, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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14
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Shimizu M, Miyazaki H, Cho S, Misu Y, Tateishi R, Yamaguchi M, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Prognostic value of machine learning for acute heart failure. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehab849.050] [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
At onset of acute heart failure (AHF), various clinical fundamental parameters including vital sign, laboratory data, or initial treatment were investigated, and we can roughly estimate the prognosis. However, machine learning method for prediction of the prognosis was not studied.
Purpose
To elucidate prognostic value of machine learning for AHF comparing conventional statistical model.
Methods
We enrolled consecutive 300 patients with AHF (79.5 ± 12.1 years, 158 Males). Patients with acute coronary syndrome, mechanical circulatory support cases, and cardio-pulmonary arrest cases were excluded. The patients were randomly divided into 80% (240 cases) and 20% (60 cases), and the former was used as train data, and the latter as validation data. Objective variable was set as cardiac death in one year. First, logistic regression analysis with Akaike’s information criterion (AIC) was performed, and extracted predictive parameters. The predictive model for the cardiac prognosis was constructed by cut-off value of ROC curve analysis of propensity score was calculated. Next, machine learning (random forest method and deep learning) to build predictive model was performed with the predictors. Finally, accuracy of each predictive model was compared.
Results
Thirty cases showed cardiac death in one year. Logistic regression with AIC extracted 8 predictors, and the cut off-value of propensity score with the 6 parameters was 0.110. The accuracy was 0.714 and area under ROC (AUROC) was 0.836. Conversely, random forest method demonstrated the accuracy as 0.927, AUROC 0.860. On deep learning, the accuracy was 0.937 and AUROC 0.901.
The top 4 high feature importance of random forest were Cl/red blood cell count/pH/Anion Gap. However, accuracy of those predictors was lower than that of machine learning.
Conclusion
Machine learning was a powerful tool to predict cardiac prognosis of AHF, comparing with conventional statistical model. Abstract Figure. Statistical model
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Miyazaki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Misu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Yamaguchi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical And Dental University, Tokyo, Japan
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15
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Shimizu M, Miyazaki H, Cho S, Misu Y, Tateishi R, Yamaguchi M, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Diagnostic performance of deep learning on 12-leads electrocardiography for recurrence after pulmonary vein isolation in patients with persistent atrial fibrillation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0490] [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
Several patients with persistent atrial fibrillation (per-AF) suffer from recurrence after pulmonary vein isolation (PVI). Various methods to predict the recurrence were tried, but deep learning on 12-leads electrocardiography (ECG) after PVI was not studied.
Purpose
To elucidate diagnostic performance of deep learning on 12-leads ECG after PVI in patients with per-AF
Methods
We enrolled consecutive 109 patients with per-AF who underwent PVI (68.8±10.0 years, 83 males) excluding failure cases. We defined recurrence in 3–12 months after PVI. From the ECG just after PVI, five beats of each lead were sampled separately. Deep learning (convolutional neural network on bitmap ECG image) was performed by transfer learning of Inception-Resnet-V2 model. Gradient weighted class activation color mapping (GradCam) was performed to detect convolutional importance in the lead.
Results
Thirty-six patients showed recurrence in the period. Lead II (accuracy 0.701), aVR (0.690) were the top 2 leads of prediction, which showed larger accuracy than statistical accuracies of Non PV foci = SVC (accuracy = 0.541) and left atrial diameter >50mm (0.596). In lead II, GradCam spotlighted strong convolution of latter half of P wave in recurrent case, and former half of P wave and T wave in no-recurrent case.
Conclusions
Deep learning on ECG was a powerful tool to predict recurrence of per-AF after PVI.
Funding Acknowledgement
Type of funding sources: None. Results of deep learningResults of GradCam
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Miyazaki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Misu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Yamaguchi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical and Dental University, Tokyo, Japan
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16
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Zou H, Cui Y, Wang X, Zhang Z, Yang J, Xu G, Okutani A, Hagiwara M, Matsuda M, Wang G, Mussardo G, Hódsági K, Kormos M, He Z, Kimura S, Yu R, Yu W, Ma J, Wu J. E_{8} Spectra of Quasi-One-Dimensional Antiferromagnet BaCo_{2}V_{2}O_{8} under Transverse Field. Phys Rev Lett 2021; 127:077201. [PMID: 34459637 DOI: 10.1103/physrevlett.127.077201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 01/08/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
We report ^{51}V NMR and inelastic neutron scattering (INS) measurements on a quasi-1D antiferromagnet BaCo_{2}V_{2}O_{8} under transverse field along the [010] direction. The scaling behavior of the spin-lattice relaxation rate above the Néel temperatures unveils a 1D quantum critical point (QCP) at H_{c}^{1D}≈4.7 T, which is masked by the 3D magnetic order. With the aid of accurate analytical analysis and numerical calculations, we show that the zone center INS spectrum at H_{c}^{1D} is precisely described by the pattern of the 1D quantum Ising model in a magnetic field, a class of universality described in terms of the exceptional E_{8} Lie algebra. These excitations are nondiffusive over a certain field range when the system is away from the 1D QCP. Our results provide an unambiguous experimental realization of the massive E_{8} phase in the compound, and open a new experimental route for exploring the dynamics of quantum integrable systems as well as physics beyond integrability.
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Affiliation(s)
- Haiyuan Zou
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yi Cui
- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, China
| | - Xiao Wang
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Z Zhang
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - J Yang
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - G Xu
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102, USA
| | - A Okutani
- Center for Advanced High Magnetic Field Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Hagiwara
- Center for Advanced High Magnetic Field Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Matsuda
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - G Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Giuseppe Mussardo
- SISSA and INFN, Sezione di Trieste, Via Bonomea 265, I-34136 Trieste, Italy
| | - K Hódsági
- BME-MTA Statistical Field Theory Research Group, Institute of Physics, Budapest University of Technology and Economics, 1111 Budapest, Budafoki út 8, Hungary
| | - M Kormos
- MTA-BME Quantum Dynamics and Correlations Research Group, Department of Theoretical Physics, Budapest University of Technology and Economics, 1111 Budapest, Budafoki út 8, Hungary
| | - Zhangzhen He
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - S Kimura
- Institute for Materials Research, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Rong Yu
- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, China
| | - Weiqiang Yu
- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, China
| | - Jie Ma
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Shenyang National Laboratory for Materials Science, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jianda Wu
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
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17
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Affiliation(s)
- A. S. M. Gilimalage
- Department of Electrical Engineering, Tokyo University of Science, Noda, Japan
| | - S. Kimura
- Department of Electrical Engineering, Tokyo University of Science, Noda, Japan
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18
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Yokouchi K, Itakura H, Wakiya R, Yoshinaga T, Mochioka N, Kimura S, Kaifu K. Cumulative effects of low‐height barriers on distributions of catadromous Japanese eels in Japan. Anim Conserv 2021. [DOI: 10.1111/acv.12725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K. Yokouchi
- National Research Institute of Fisheries Science Japan Fisheries Research and Education Agency Yokohama Japan
- Center for International Collaborative Research Nagasaki University Nagasaki Japan
| | - H. Itakura
- Chesapeake Biological Laboratory University of Maryland Center for Environmental Science Solomons MD USA
- Atmosphere and Ocean Research Institute The University of Tokyo Kashiwa Japan
| | - R. Wakiya
- Atmosphere and Ocean Research Institute The University of Tokyo Kashiwa Japan
- Research and Development Initiative Chuo University Hachioji Japan
| | - T. Yoshinaga
- School of Marine Biosciences Kitasato University Sagamihara Japan
| | - N. Mochioka
- Faculty of Agriculture Kyushu University Fukuoka Japan
| | - S. Kimura
- Atmosphere and Ocean Research Institute The University of Tokyo Kashiwa Japan
| | - K. Kaifu
- Faculty of Law Chuo University Hachioji Japan
- The Zoological Society of London London UK
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19
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Kyaw MS, Ebihara A, Kasuga Y, Maki K, Kimura S, Htun PH, Nakatsukasa T, Okiji T. Influence of rotational speed on torque/force generation and shaping ability during root canal instrumentation of extracted teeth with continuous rotation and optimum torque reverse motion. Int Endod J 2021; 54:1614-1622. [PMID: 33527449 DOI: 10.1111/iej.13485] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/26/2021] [Indexed: 01/03/2023]
Abstract
AIM To evaluate how different rotational speeds affect the torque/force generation and shaping ability of rotary root canal instrumentation using JIZAI (MANI, Utsunomiya, Japan) nickel-titanium instruments in continuous rotation and optimum torque reverse (OTR) motion. METHODOLOGY Mesial root canals of extracted mandibular molars were instrumented up to size 25, 0.04 taper using JIZAI instruments, and anatomically matched canals were selected based on geometric features of the canal [canal volume (mm3 ), surface area (mm2 ), length, 15°-20° curvature and radius of curvature (4-8 mm)] after micro-computed tomographic scanning. An automated root canal instrumentation and torque/force analysing device was programmed to permit a simulated pecking motion (2 s downward and 1 s upward at 50 mm min-1 ). The selected canals were prepared with size 25, 0.06 taper JIZAI instruments using continuous rotation or OTR motion and further subdivided according to the rotational speed (300 or 500 rpm, n = 10 each). Real-time clockwise/counterclockwise torque and downward/upward force were recorded using a custom-made torque/force analysing device. Then, the registered pre- and post-operative micro-computed tomographic datasets were examined to evaluate the canal volume changes and centring ratios at 1, 3, 5 and 7 mm from the apical foramen. Data were analysed using two-way analysis of variance or the Kruskal-Wallis test and Mann-Whitney U test with Bonferroni correction (α = 5%). RESULTS Maximum upward force and clockwise torque were significantly smaller in 500 rpm groups than in 300 rpm groups (P < .05); however, no significant difference was found between continuous rotation and OTR motion (P > .05). OTR motion developed higher maximum counterclockwise torque than continuous rotation (P < .05). Maximum downward force, canal volume changes and centring ratios were not significantly different among all groups (P > .05). There was no file fracture in any of the groups. CONCLUSIONS Under laboratory conditions using JIZAI instruments, a rotational speed of 500 rpm generated significantly lower maximum screw-in forces and torque values than rotational speed of 300 rpm. Continuous rotation and OTR motion performed similarly in shaping the canals.
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Affiliation(s)
- M S Kyaw
- Division of Oral Health Sciences, Department of Pulp Biology and Endodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Conservative Dentistry, University of Dental Medicine (Mandalay), Mandalay, Myanmar
| | - A Ebihara
- Division of Oral Health Sciences, Department of Pulp Biology and Endodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Y Kasuga
- Division of Oral Health Sciences, Department of Pulp Biology and Endodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - K Maki
- Division of Oral Health Sciences, Department of Pulp Biology and Endodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - S Kimura
- Division of Oral Health Sciences, Department of Pulp Biology and Endodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - P H Htun
- Division of Oral Health Sciences, Department of Pulp Biology and Endodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - T Nakatsukasa
- Division of Oral Health Sciences, Department of Pulp Biology and Endodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - T Okiji
- Division of Oral Health Sciences, Department of Pulp Biology and Endodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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20
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Tanaka N, Kimura S, Kamatari YO, Nakata K, Kobatake Y, Inden M, Yamato O, Urushitani M, Maeda S, Kamishina H. In vitro evidence of propagation of superoxide dismutase-1 protein aggregation in canine degenerative myelopathy. Vet J 2021; 274:105710. [PMID: 34166783 DOI: 10.1016/j.tvjl.2021.105710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 11/30/2022]
Abstract
Canine degenerative myelopathy (DM) is a progressive and fatal neurodegenerative disorder that has been linked to mutations in the superoxide dismutase 1 (SOD1) gene. The accumulation of misfolded protein aggregates in spinal neurons and astrocytes is implicated as an important pathological process in DM; however, the mechanism of protein aggregate formation is largely unknown. In human neurodegenerative diseases, such as amyotrophic lateral sclerosis (ALS), cell-to-cell propagation of disease-relevant proteins has been demonstrated. Therefore, in this study, propagation of aggregation-forming property of mutant SOD1 protein in DM in vitro was investigated. This study demonstrated that aggregates composed of canine wild type SOD1 protein were increased by co-transfection with canine mutant SOD1 (E40K SOD1), indicating intracellular propagation of SOD1 aggregates. Further, aggregated recombinant SOD1 proteins were released from the cells, taken up by other cells, and induced further aggregate formation of normally folded SOD1 proteins. These results suggest intercellular propagation of SOD1 aggregates. The hypothesis of cell-to-cell propagation of SOD1 aggregates proposed in this study may underly the progressive nature of DM pathology.
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Affiliation(s)
- N Tanaka
- Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - S Kimura
- The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Y O Kamatari
- Division of Instrumental Analysis, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - K Nakata
- The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Y Kobatake
- Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - M Inden
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, 1-26-4 Daigaku-Nishi, Gifu, 501-1196, Japan
| | - O Yamato
- Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-8580, Japan
| | - M Urushitani
- Department of Neurology, Shiga Univ. of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga, 520-2192, Japan
| | - S Maeda
- Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan; The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - H Kamishina
- Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan; The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
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21
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Fujii Y, Kobayashi K, Yamamoto S, Kimura S, Miyai H, Hayakawa T, Takiguchi S. Delta-shaped overlap anastomosis in laparoscopic colectomy with mechanical closure of the enterotomy. Tech Coloproctol 2021; 25:971-972. [PMID: 33835339 DOI: 10.1007/s10151-021-02443-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Y Fujii
- Department of Surgery, Kariya Toyota General Hospital, 15-5-sumiyoshicyou, Kariya, Aichi, Japan.
| | - K Kobayashi
- Department of Surgery, Kariya Toyota General Hospital, 15-5-sumiyoshicyou, Kariya, Aichi, Japan
| | - S Yamamoto
- Department of Surgery, Kariya Toyota General Hospital, 15-5-sumiyoshicyou, Kariya, Aichi, Japan
| | - S Kimura
- Department of Surgery, Kariya Toyota General Hospital, 15-5-sumiyoshicyou, Kariya, Aichi, Japan
| | - H Miyai
- Department of Surgery, Kariya Toyota General Hospital, 15-5-sumiyoshicyou, Kariya, Aichi, Japan
| | - T Hayakawa
- Department of Surgery, Kariya Toyota General Hospital, 15-5-sumiyoshicyou, Kariya, Aichi, Japan
| | - S Takiguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
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22
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D Valenti, Mistry H, Kimura S, Khanna A, Pran L. A case of Infective Native (Abdominal) Aortic Aneurysm Caused by Streptococcus Agalactiae: An Updated Literature Review Based on New Nomenclature. Ann Vasc Surg 2021; 75:531.e7-531.e13. [PMID: 33836232 DOI: 10.1016/j.avsg.2021.01.105] [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: 11/21/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 10/21/2022]
Abstract
The management of abdominal aortic aneurysms (AAA) has evolved significantly with the advent of endovascular strategies. Thus, there has been a decline in the number of open AAA repairs once an endovascular option is available. There have also been reports of successful endovascular management of infective native aortic aneurysms (INAA)1, previously called mycotic aneurysms2. The rarity of this condition makes its management a challenging one as there are no standard guidelines. The European Society of Vascular Surgery has suggested that the nomenclature be changed from mycotic aneurysms as this can be misleading to standardise reporting1. The authors' present a case of a 67-year old male who presented during the peak of the Corona Virus pandemic with constitutional gastrointestinal symptoms. He was subsequently diagnosed with an INAA and successfully managed with open Neo-Aorto Iliac System reconstruction with a homograft3. The report highlights various strategies used in the surgical approach and their benefits in the management of INAA. Furthermore, a literature review of Streptococcus (Streptococcus agalactiae) species as a rare cause of INAA and how these cases were managed are also highlighted.
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Affiliation(s)
- D Valenti
- Department of Vascular Surgery, King's College Hospital, London, United Kingdom
| | - H Mistry
- Department of Vascular Surgery, King's College Hospital, London, United Kingdom
| | - S Kimura
- Department of Vascular Surgery, King's College Hospital, London, United Kingdom
| | - A Khanna
- Department of Vascular Surgery, King's College Hospital, London, United Kingdom
| | - L Pran
- Department of Vascular Surgery, King's College Hospital, London, United Kingdom.
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23
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Soma Y, Mori K, Noguchi Y, Kimura S, Fujiwara Y, Yamamoto Y, Itou Y, Okawa T, Murakami M, Matsuo K, Tanaka S, Mori N, Sugawara A. POS-161 A CASE OF EGPA THAT DEVELOPED DURING REMISSION OF IGA NEPHROPATHY. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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24
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Shimizu M, Cho S, Hara K, Ohmori M, Tateishi R, Kaneda T, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Prediction for cardiac prognosis in patients with congestive heart failure by machine learning on dual-isotope myocardial semiconductor SPECT. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0275] [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
Dual-isotope (low doze 201TlCl and 123I-β-methyl-P-iodophenyl-pentadecanoic acid (BMIPP)) single photon emission computed tomography (SPECT) is utilized to estimate myocardial damage in patients with congestive heart failure (CHF). However, predictive model construction on the SPECT for cardiac death by machine learning was not studied.
Purpose
To elucidate predictive value of machine learning model on dual-isotope SPECT for CHF.
Methods
We enrolled consecutive 310 patients who admitted with CHF (77.1±3.1 years, 164 males). After initial treatment, they underwent electrocardiography gated SPECT and observed in median 507 days [IQR: 165, 1032]. Multivariate Cox regression analysis for cardiac death was performed, and predictive model was constructed by ROC curve analysis and machine learning (Random Forest and Deep Learning). The accuracies (= [True positive + True negative] / Total) of the prediction models were compared with ROC curve model.
Results
Thirty-six patients fell into cardiac death. Cox analysis showed Age, left ventricular ejection fraction (LVEF), summed rest score (SRS) of BMIPP, and mismatch score were significant predictors (Hazard ratio: 1.068, 0.970, 1.032, 1.092, P value: <0.001, 0.014, 0.002, <0.001, respectively). ROC curve analysis of them revealed the accuracy of the cut-off value was 0.479–0.773. Conversely, machine learning model demonstrated higher accuracy for cardiac death (Random Forest: 0.895, Deep Learning: 0.935). The top 4 feature importance of the random forest were LVEF (0.299), SRS BMIPP (0.263), Age (0.262), and mismatch score (0.160).
Conclusion
Machine learning model on SPECT was superior to conventional statistic model for predicting cardiac death in patients with CHF.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical and Dental University, Tokyo, Japan
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25
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Yamakami Y, Kimura S, Hara K, Ohmori M, Tateishi R, Kaneda T, Shimada H, Manno T, Isshiki A, Shimizu M, Fujii H, Suzuki M, Sasano T. The comparison of the chronic-phase vascular healing between bioabsorbable and durable polymer drug eluting stent by using optical coherence tomography. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2472] [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
Bioabsorbable polymer drug eluting stents (BP-DESs) were designed to reduce a vascular inflammatory reaction compared to durable polymer drug eluting stents (DP-DESs). However, few studies have compared vascular responses to BP-DESs and DP-DESs.
Methods
We enrolled 88 consecutive patients with single culprit coronary artery lesions (31 lesions with acute coronary syndrome) undergoing a single stent-implantation. BP-DESs and DP-DESs were implanted in 50 (57%) and 38 patients (43%), respectively. All lesions underwent optical coherence tomography examination at chronic phase and intrastent OCT findings at the follow-up were evaluated in every 1-mm cross-sections (CSs).
Results
A total of 1887 CSs (BP-DES: 1096, DP-DES: 791) were analyzed. The median period of follow-up OCT was 293 (250–374) days. There were no differences in the patient, lesion, and initial clinical presentation of acute coronary syndrome (ACS). BP-DESs had significantly higher percent neointimal hyperplasia area, defined as neointimal hyperplasia area divided by stent area x 100 (18.4±9.0% vs. 16.1±9.9%, p<0.001), fewer malapposed struts (1.7% vs. 3.9%, p=0.005), fewer uncovered struts (3.6% vs. 5.8%, p=0.02) but higher frequency of superficial low intensity neointima (LIN) (7.7% vs. 3.4%, p<0.001). Multivariate logistic analysis showed that BP-DES (OR: 2.5, 95% CI: 1.49–4.08, p<0.001) and the initial clinical presentation of ACS (OR: 2.31, 95% CI: 1.47–3.62, p<0.001) are independent predictive factors for LIN.
Conclusion
BP-DESs showed homogenous neointimal growth and complete stent coverage quantitatively. Meanwhile, the significant relationships of BP-DES with LIN may suggest that the neointimal quality remains immature in BP-DESs in this period.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of cardiology, Yokohama, Japan
| | - T Sasano
- Tokyo Medical and Dental University, Department of cardiology, Tokyo, Japan
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26
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Kimura S, Hara K, Ohmori M, Tateishi R, Kaneda T, Yamakami Y, Shimada H, Manno T, Iishiki A, Shimizu M, Fujii H, Suzuki M, Sasano T. Optical coherence tomography findings in healed vulnerable plaques in patients with coronary artery disease. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2461] [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
Histopathological analysis or intracoronary image assessment of healed plaques (HPs) has been reported both in acute coronary syndrome (ACS) and stable angina pectoris (SAP) patients. However, background characteristics or lesion morphologies of HPs could not be fully clarified and their differences according to the clinical status remain undetermined.
Purpose
We sought to investigate the clinical and morphological characteristics and compare their differences among ACS and SAP patients in order to clarify the clinical significance in HPs lesions.
Methods
We enrolled consecutive 201 patients with 213 native coronary artery lesions (139 lesions with SAP, 42 ST elevation-ACS (STE-ACS) and 32 non-ST elevation ACS (NSTE-ACS) undergoing pre-intervention optical coherence tomography (OCT). HPs was defined as layered phenotype on OCT. Clinical and angiography characteristics and lesion morphologies on OCT were assessed.
Results
HPs were observed in 110 lesions (51.6%) and their prevalence were not different according to the clinical status (SAP:55.1%, STE-ACS:38.1%, NSTE-ACS:56.3%, p=0.14). Lesions with HPs had higher frequencies of angiography-eccentric lesions (62.7% vs. 35.9%, p<0.001) and OCT-macrophages (65.5% vs. 43.1%, p<0.001), and greater OCT-lumen area stenosis (%-AS) (77.1±10.2% vs. 73.6±10.6%, p=0.01) than those without HPs. Of lesions with HPs, OCT-thin-cap fibroatheroma (SAP 14.4%, STE-AC43.8%, NSTE-ACS 16.7%, p=0.03), plaque rupture (5.3%; 37.5%; 11.1%, p<0.001) and thrombus (6.6%, 75.0%, 22.2%, p=0.007) were more frequently observed in STE-ACS than in SAP patients, whereas OCT-microvessels were more frequent in SAP than in ACS patients (19.7%, 0.0%, 0.0%, p=0.02). Other OCT findings such as macrophages, cholesterol crystal, multiple layered phenotype, and %-AS were not significantly different according to the clinical status. Multivariate logistic regression analysis identified the angiography-eccentric lesions (odds ratio (OR): 2.97, 95% confidence intervals (CI): 1.68–5.25, p<0.001) and OCT macrophages (OR 2.41, 95% CI 1.36–4.27, p=0.003) as independent related factors for the existence of HPs.
Conclusions
The present study showed that HPs lesions had eccentric and large plaque burden, and persistent plaque inflammations regardless of clinical status, which might lead to future coronary events.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Kimura
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - A Iishiki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Sasano
- Tokyo Medical and Dental University, Department of Cardiovascular Medicine, Tokyo, Japan
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27
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Kimura S, Hara K, Ohmori M, Tateishi R, Kaneda T, Yamakami Y, Shimada H, Manno T, Iishiki A, Shimizu M, Fujii H, Suzuki M, Sasano T. Optical coherence tomography and coronary angioscopy assessment of healed vulnerable plaque components in patients with coronary artery lesions undergoing elective percutaneous coronary intervention. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2444] [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
Many vulnerable plaques would progress without clinical events and might result in healed plaques (HPs). Histopathological or intracoronary image assessment of HPs has been reported. However, the morphological characteristics of HPs remain unclear yet.
Purpose
We sought to assess the healed vulnerable plaque components in patients with coronary artery lesions using optical coherence tomography (OCT) and coronary angioscopy (CAS).
Methods
We enrolled 47 patients with 50 native coronary artery lesions with angiographical severe stenosis (>90% diameter-stenosis) and without severe calcification (36 lesions with stable angina pectoris (SAP) and 14 acute coronary syndrome (ACS)) undergoing pre-intervention OCT and CAS. HPs was defined as layered phenotype on OCT. Lesion morphologies and plaque characteristics in lesions with HPs were assessed using OCT and CAS images.
Results
HPs were observed in 27 lesions (54.0%) and their prevalence were similar among each clinical status (SAP 52.8%, ACS 57.1%, p=1.00). Lesions with HPs had higher prevalence of OCT-macrophage (88.0% vs. 52.0%, p=0.01), CAS-red thrombus (88.8% vs. 52.2%, p=0.004) and CAS-low grade-yellow plaque (grade 1) (55.6% vs. 21.7%, p=0.02) than those without. SAP lesions with HPs had higher prevalence of CAS-yellow plaque (35.3% vs. 5.9%, p=0.09) and OCT-thin-cap fibroatheroma (42.1% vs. 5.9%, p=0.04) than SAP without HPs. ACS lesions with HPs had less CAS-red thrombus (0.0% vs. 50.0%, p=0.03) and OCT-plaque rupture (12.5% vs. 66.7%, p=0.04) than ACS without HPs. Multivariate logistic regression analysis revealed that OCT-macrophages (odds ratio (OR): 6.65, 95%-confidence intervals: 1.07–41.5, p=0.043), CAS-red thrombus (OR 8.77, 95% CI 1.33–57.8, p=0.02), and low grade-yellow plaque (OR 13.05, 95% CI 1.97–86.5, p=0.008) were independently related with the existence of HPs lesions. Combination of these 3 factors showed a high predictive value of OCT-HPs lesions (90.9%).
Conclusions
HPs lesions showed the lower lesion vulnerability than common ACS lesions but had more intraplaque inflammatory condition compared with common SAP lesions. Combined CAS and OCT examination might be useful to clarify the plaque components of HPs lesions in vivo, leading to help us understand the clinical significance of HPs.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Kimura
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - A Iishiki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - T Sasano
- Tokyo Medical and Dental University, Department of Cardiovascular Medicine, Tokyo, Japan
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28
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Shimizu M, Cho S, Hara K, Ohmori M, Kaneda T, Tateishi R, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Differences of ST level at J-point on 12-lead electrocardiography can distinguish takotsubo syndrome and acute anterior myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2152] [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
Qualitative difference of ST elevation/depression on 12-leads electrocardiography (ECG) at onset was reported in patients with Takotsubo syndrome (TTS) and acute anterior myocardial infarction (ant AMI). However, quantitative difference of those was not elucidated.
Purpose
To investigate differences of ST level at J point on ECG between TTS and ant AMI by automated calculating system.
Methods
We firstly enrolled consecutive 40 patients of TTS, and among 500 ant AMI patients, one to two random matching was done by their age and gender. Finally, 40+80 patients (74.5±11.2 years, 87 females) were enrolled. ECG at onset of both group was measured by automated system (ECAPs12c: Nihon-Koden).
Results
ST level of TTS at J-point in I/II/V4–6 lead was significantly elevated comparing to that of ant AMI. Conversely, Conversely, significant ST depression in aVR and no ST elevation in V1 of TTS was observed in TTS. Logistic regression analysis revealed that ST elevation in I lead and no ST elevation in V1 lead showed high odds ratio and low P value.
Conclusion
Automated measured ST level at J-point was a powerful tool to distinguish TTS and ant AMI at onset.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical and Dental University, Tokyo, Japan
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29
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Shimizu M, Cho S, Hara K, Ohmori M, Kaneda T, Tateishi R, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Diagnostic performance of 18-leads electrocardiography to distinguish takotsubo syndrome and acute anterior myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3445] [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
Electrocardiographic (ECG) features on acute phase of Takotsubo syndrome (TTS) is recognized to mimic that of acute anterior myocardial infarction (ant AMI). However, the difference of synthesized 18-leads ECG of both diseases was not elucidated.
Purpose
To elucidate diagnostic performance of 18-leads ECG to distinguish TTS and acute anterior AMI.
Methods
We firstly enrolled consecutive 40 patients of TTS, and among 500 ant AMI patients, one to two matching was done by their age and gender. Finally, 40+80 patients (74.5±11.2 years, 87 females) were enrolled, and ECG at onset of both group was estimated. Because of multicollinearity, all significant differences were compared by machine learning (Random Forest method).
Results
Prevalence of Q wave had no difference. Conversely, ST depression in TTS and ST elevation in ant AMI were significant differences in V7–9 leads. T-wave polarity of V3R-V9 leads were significantly different (flat T-wave in TTS and positive in ant AMI). Machine learning revealed T wave polarity in V7 lead had the highest feature importance.
Conclusion
18-leads ECG at onset had powerful diagnostic performance to distinguish the two diseases.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical and Dental University, Tokyo, Japan
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30
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Livesey LC, Yorke E, Parra A, Gray Q, Davies C, Weldon D, Schumacher J, Kimura S, Howard C, Sierra‐Rodriguez T, Mora‐Pereira M. Use of a carbonated beverage to disintegrate a phytobezoar obstructing the intrathoracic portion of the oesophagus of a horse. EQUINE VET EDUC 2020. [DOI: 10.1111/eve.13082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- L. C. Livesey
- Tuskegee University College of Veterinary Medicine Auburn AlabamaUSA
| | - E. Yorke
- Tuskegee University College of Veterinary Medicine Auburn AlabamaUSA
| | - A. Parra
- Tuskegee University College of Veterinary Medicine Auburn AlabamaUSA
| | - Q. Gray
- Tuskegee University College of Veterinary Medicine Auburn AlabamaUSA
| | - C. Davies
- Tuskegee University College of Veterinary Medicine Auburn AlabamaUSA
| | - D. Weldon
- Southeast Equine Veterinary Services Phenix City AlabamaUSA
| | - J. Schumacher
- J.T. Vaughan Large Animal Teaching Hospital Auburn University College of Veterinary Medicine Auburn Alabama USA
| | - S. Kimura
- J.T. Vaughan Large Animal Teaching Hospital Auburn University College of Veterinary Medicine Auburn Alabama USA
| | - C. Howard
- Bluegrass Animal Clinic Grayson Kentucky USA
| | - T. Sierra‐Rodriguez
- J.T. Vaughan Large Animal Teaching Hospital Auburn University College of Veterinary Medicine Auburn Alabama USA
| | - M. Mora‐Pereira
- J.T. Vaughan Large Animal Teaching Hospital Auburn University College of Veterinary Medicine Auburn Alabama USA
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31
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Mori K, Kimura S, Egawa S, Shahrokh S. Prognostic value of preoperative De Ritis ratio in upper tract urothelial carcinoma treated with radical nephroureterectomy. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34095-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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32
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Janisch F, D’Andrea D, Iwata T, Kimura S, Abufaraj M, Enikeev D, Glybochko P, Karakiewicz P, Nyiradi P, Fajokvic H, Haitel A, Seebacher V, Rink M, Shariat S. The clinical value of the urokinase-plasminogen activator system (uPA) in patients with radical cystectomy (RC) for bladder cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33620-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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33
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Miura S, Fukushima M, Kurosawa H, Kimura S. Epidemiology of long-stay patients in the pediatric intensive care unit: prevalence, characteristics, resource consumption and complications. Z Gesundh Wiss 2020; 30:111-119. [PMID: 32421088 PMCID: PMC7223791 DOI: 10.1007/s10389-020-01282-3] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/01/2020] [Indexed: 11/03/2022]
Abstract
Background The impact of pediatric intensive care unit (PICU) utilization and resource consumption among long-stay patients has not been characterized recently. This study aimed to describe the resource consumption and characteristics of long-stay patients in a PICU. Methods This was a single-center descriptive cohort study of 1309 patients admitted to a PICU in 2017. The main outcome was ICU length of stay (LOS). Patients were divided into prolonged LOS (PLS) and non-PLS groups if they had an LOS of ≥ 28 or < 28 days, respectively. Two groups were compared to characterize PLS. Results Thirty-two (2.4%) patients had a PLS and utilized 33% of PICU bed days. Factors associated with PLS with odds ratio [95% confidence interval (CI)] were being a neonate (7.8 [2.5-25.4], p = <0.001), being an infant (2.9 [1.0-9.0], p = 0.04), admission for a respiratory ailment (7.3 [1.6-44.2], p = 0.003), cardiovascular dysfunction (24.1 [4.8-152.1], p = <0.001), post-cardiac operation (8.0 [1.7-50.1], p = 0.003), post-cardiopulmonary arrest (22.8 [1.7-211.9], p = 0.01), and transfer from another facility (4.2 [1.8-10.7], p = 0.001). PLS patients developed more nosocomial infections and disproportionately received monitoring and therapeutic resources. Conclusions A PLS was associated with substantial PICU utilization and complication rates. Future studies should aim to alleviate both institutional and patient-related issues in the affected population harboring possible risk factors for PLS.
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Affiliation(s)
- S Miura
- Department of Pediatric Intensive Care, Saitama Children's Medical Center, 1-2, Shintoshin, Saitama, Chuou-ku 330-8777 Japan
| | - M Fukushima
- Department of Pediatric Intensive Care, Saitama Children's Medical Center, 1-2, Shintoshin, Saitama, Chuou-ku 330-8777 Japan
| | - H Kurosawa
- Department of Pediatric Intensive Care, Saitama Children's Medical Center, 1-2, Shintoshin, Saitama, Chuou-ku 330-8777 Japan
| | - S Kimura
- Department of Pediatric Intensive Care, Saitama Children's Medical Center, 1-2, Shintoshin, Saitama, Chuou-ku 330-8777 Japan
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34
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Kidoguchi K, Kubota Y, Kusaba K, Kizuka-Sano H, Yamaguchi K, Nishioka A, Yokoo M, Ando T, Kojima K, Kimura S. Severe infusion reaction, anti-rituximab antibodies and lymphoma. QJM 2020; 113:273-274. [PMID: 31702763 DOI: 10.1093/qjmed/hcz296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 10/29/2019] [Revised: 10/29/2019] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Kidoguchi
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Y Kubota
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
- Department of Transfusion Medicine, Saga University Hospital, Saga, Japan
| | - K Kusaba
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - H Kizuka-Sano
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - K Yamaguchi
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - A Nishioka
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - M Yokoo
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - T Ando
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - K Kojima
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - S Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
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35
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Arakawa M, Saiki T, Wada K, Ogawa K, Kadono T, Shirai K, Sawada H, Ishibashi K, Honda R, Sakatani N, Iijima Y, Okamoto C, Yano H, Takagi Y, Hayakawa M, Michel P, Jutzi M, Shimaki Y, Kimura S, Mimasu Y, Toda T, Imamura H, Nakazawa S, Hayakawa H, Sugita S, Morota T, Kameda S, Tatsumi E, Cho Y, Yoshioka K, Yokota Y, Matsuoka M, Yamada M, Kouyama T, Honda C, Tsuda Y, Watanabe S, Yoshikawa M, Tanaka S, Terui F, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Takeuchi H, Yamamoto Y, Okada T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Iwata T, Ozaki M, Abe M, Namiki N, Kitazato K, Tachibana S, Ikeda H, Hirata N, Hirata N, Noguchi R, Miura A. An artificial impact on the asteroid (162173) Ryugu formed a crater in the gravity-dominated regime. Science 2020; 368:67-71. [PMID: 32193363 DOI: 10.1126/science.aaz1701] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 03/04/2020] [Indexed: 11/02/2022]
Abstract
The Hayabusa2 spacecraft investigated the small asteroid Ryugu, which has a rubble-pile structure. We describe an impact experiment on Ryugu using Hayabusa2's Small Carry-on Impactor. The impact produced an artificial crater with a diameter >10 meters, which has a semicircular shape, an elevated rim, and a central pit. Images of the impact and resulting ejecta were recorded by the Deployable CAMera 3 for >8 minutes, showing the growth of an ejecta curtain (the outer edge of the ejecta) and deposition of ejecta onto the surface. The ejecta curtain was asymmetric and heterogeneous and it never fully detached from the surface. The crater formed in the gravity-dominated regime; in other words, crater growth was limited by gravity not surface strength. We discuss implications for Ryugu's surface age.
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Affiliation(s)
- M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - K Ogawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.,JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Kadono
- Department of Basic Sciences, University of Occupational and Environmental Health, Kitakyusyu 807-8555, Japan
| | - K Shirai
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Ishibashi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - C Okamoto
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Takagi
- Department of Regional Business, Aichi Toho University, Nagoya 465-8515, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - P Michel
- Observatoire de la Côte d'Azur, Université Côte d'Azur, CNRS, Laboratoire Lagrange, CS34229, 06304 Nice Cedex 4, France
| | - M Jutzi
- Physics Institute, University of Bern, National Centre of Competence in Research PlanetS, Gesellschaftsstrasse 6, 3012, Bern, Switzerland
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Kimura
- Department of Electrical Engineering, Tokyo University of Science, Noda 278-8510, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Toda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Imamura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - S Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, 38205 San Cristóbal de La Laguna, Spain
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Yoshioka
- Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - C Honda
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - F Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Yamaguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Yoshikawa
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - C Hirose
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - O Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Shimada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Soldini
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L3 5TQ, UK
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - K Kitazato
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - S Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Ikeda
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - N Hirata
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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ITOU Y, Kimura S, Fujiwara Y, Yamamoto Y, Okamura S, Okawa T, Murakami M, Matsuo K, Tanaka S, Mori N, Mori K. SUN-415 THROMBOTIC MICROANGIOPATHY AFTER STEROID PULSE THERAPY IN A RAPIDLY-PROGRESSIVE GLOMERULONEPHRITIS CASE HAVING HIGH -TITER ANTI-GBM ANTIBODY AND MPO-ANCA. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Cruijsen H, Poitevin E, Brunelle SL, Almeida S, Braun U, Connelly M, Giuliani L, Huertas R, Hui S, Ikeuchi Y, Jaudzems G, Kimura S, Kittleson J, Larkin G, Li F, McMahon A, Nagatoshi M, Piccon I, Postma M, Rizzo A, Sadipiralla B, Shan L, Shinichi T, Silva F, Torres M, van Goethem S, vander Moolen H, Xindong G. Determination of Minerals and Trace Elements in Milk, Milk Products, Infant Formula, and Adult Nutrition: Collaborative Study 2011.14 Method Modification. J AOAC Int 2019. [DOI: 10.1093/jaoac/102.6.1845] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Official Method SM 2011.14/ISO 15151:2018/IDF 229:2018 uses microwave digestion of samples and inductively coupled plasma–atomic emission spectrometry for determination of nine elements, including Ca, Cu, Fe, K, Mg, Mn, Na, P, and Zn. The method was evaluated in a collaborative study of 25 products, including 13 fortified nutritional products (powders, ready-to-feed liquids, and liquid concentrates), five product placebos, six dairy products (liquids, powders, butter, and processed cheese), and the National Institute for Standards and Technology (NIST) Standard Reference Material (SRM) 1849a, in compliance with AOAC INTERNATIONAL Standard Method Performance Requirement (SMPR®) 2014.004. This study significantly expanded the applicability of Official Method 2011.14 beyond the original scope of chocolate milk powder, dietetic milk powder, infant cereal, peanut butter, and wheat gluten. The study included 14 collaborators from 11 countries, and results were compared to SMPR 2014.004. Accuracy of the method was demonstrated using NIST SRM 1849a, yielding recoveries across all laboratories of 98–101% for the nine elements. Precision for the 13 fortified nutritional product samples was 2.2–3.9% for repeatability (relative SD of repeatability) and 6.0–12.2% for reproducibility (RSDR). Excluding Mn, which was present at a wide range of concentrations, the reproducibility was 6.0–9.5%, meeting the performance requirements of SMPR 2014.004. Placebo samples (not fortified with Cu, Fe, Mn, or Zn) yielded acceptable repeatability of 1.8–2.9% for Ca, K, Mg, Na, and P (minerals) but 5.4–29.4% for the low levels of Cu, Fe, Mn, and Zn (trace elements). Reproducibility for the placebos showed the same pattern, with acceptable reproducibility (5.4–10.3%) for minerals but not for the low levels of the trace elements (13.2–82.8%). In the six dairy product samples, repeatability ranged from 1.6 to 3.6% for the minerals, Zn, and the low range of Mn but from 9.4 to 24.6% for Cu, Fe, and the high range of Mn, where concentrations were low as for the nutritional placebos. Reproducibility in the dairy samples was 5.3–8.8% for the minerals but 11.4–55.0% for the trace elements. The mean concentrations of Cu, Fe, and Zn in the dairy products were similar with those in the placebo products, while Zn was present at levels more similar with the fortified nutritional products. Thus, the method met the SMPR criteria except where the trace minerals were present at very low levels. Based on these results, the AOAC Stakeholder Panel for Infant Formula and Adult Nutritionals recommended Final Action status of the expanded applicability of the method. The method was adopted as Final Action by the AOAC Official Methods Board.
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Affiliation(s)
- Hans Cruijsen
- Friesland Campina, Laboratory and Quality Services, P. Stuyvesantweg 1, 8937 AC Leeuwarden, The Netherlands
| | - Eric Poitevin
- Nestlé Research Center, Vers-chez-les-Blanc, 1000 Lausanne 26, Switzerland
| | - Sharon L Brunelle
- Brunelle Biotech Consulting, 6620 NW Burgundy Dr, Corvallis, OR 97330
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38
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Manno T, Shimizu M, Ohomri M, Taomoto Y, Kaneda T, Yamakami Y, Iiya M, Shimada H, Isshiki A, Kimura S, Fujii H, Suzuki M, Hirao K. P4386Prognostic value of pressure-strain curve analysis by echocardiography for cardiac death in patients with congestive heart failure. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0791] [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
Pressure-strain curve analysis (PS-curve) is novel method of echocardiographic evaluation for left ventricular (LV) systolic myocardial work including the effect of blood pressure. However, the prognostic value of PS-curve for prospective cardiac death in patients with congestive heart failure (CHF).
Purpose
To elucidate the prognostic value of PS-curve analysis for cardiac death in patients with CHF.
Methods
We enrolled 63 consecutive sinus-rhythm patients with CHF admission who were evaluated by PS-curve analysis before discharge (76.0±13.3 years, 39 males). Endpoint was set as all cardiac death.
Results
Observation period was median 327 days [25%: 91, 75%: 656 days], and the longest period was 1004 days. Five patients died for cardiac causes. Multivariate Cox regression analysis (stepwise regression) revealed diastolic blood pressure (BP) and global constructive work (GCW) were independent predictors (Hazard ratio: 0.854, 0.996, P value: 0.016, 0.019, respectively). ROC curve analysis demonstrated GCW ≤601 had high diagnostic performance for cardiac death (specificity 0.891, sensitivity 0.800, area under ROC 0.824). Kaplan-Meyer curve analysis indicated the group with GCW ≤601 was worse cardiac prognosis (Logrank P<0.001).
Cox Hazard Regression Analysis Univariate Multivariate (stepwise regression) Hazard Ratio 95% CI P Hazard Ratio 95% CI P BP systole (mmHg) 0.915 0.85–0.99 0.026 BP diastole (mmHg) 0.915 0.84–0.99 0.043 0.854 0.75–0.97 0.016 LVDd (mm) 1.064 1.01–1.12 0.025 NA LVDs (mm) 1.066 1.01–1.12 0.016 LVEF (%) 0.963 0.91–1.02 0.221 LAD (mm) 1.197 1.06–1.36 0.005 GWE 0.937 0.88–0.99 0.041 GWI 0.998 0.99–0.99 0.041 NA GCW 0.998 0.99–0.99 0.037 0.996 0.99–0.99 0.019 GWW 0.996 0.98–1.01 0.502 Considering multicollinearity, we excluded GWI and LVDd (correlation coefficient: GWI and GCW = 0.979, LVDd and LVDs = 0.942).
Conclusion
Pressure-strain curve analysis had powerful predictive value for cardiac death in patients with CHF.
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Affiliation(s)
- T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohomri
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Taomoto
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Iiya
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hirao
- Tokyo Medical and Dental University, Departmentof Cardiology, Tokyo, Japan
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Iiya M, Kimura S, Shimizu M, Fujii H, Suzuki M. P1704The impact of electrocardiographic changes upon resuscitation from out-of-hospital cardiac arrest on mortality. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0459] [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
The serial electrocardiographic changes in patients following out-of-hospital cardiac arrest (OHCA) are unclear.
Purpose
To evaluate serial electrocardiographic changes and to predict all-cause mortality in patients following OHCA.
Methods
We retrospectively studied 101 OHCA patients (70±16 years, 49 male) who achieved a return of spontaneous circulation (ROSC) and survived for ≥3hours. Twelve-lead electrocardiograms (ECGs) were evaluated twice in each patient: initial-ECG, after achieving ROSC; and 2nd-ECG, after receiving the initial evaluation in the emergency room. Patients were divided into two groups: S-group, those surviving for 28 days, and D-group, those dying within 28 days. Multivariate Cox regression analyses were performed to predict the 28-day survival following OHCA. A Kaplan-Meier curve analysis for the 28 day mortality stratified by the QRS morphology and rhythm of initial-ECG was performed.
Results
Among variables of initial-ECG, there were significant differences between the group-S and group-D (table). Multivariate analysis with a step-wise regression demonstrated that age, lactate, and QRS duration of the initial-ECG were significant predictors of all-cause mortality (Odds ratio (OR): 1.04, 1.21, 1.02, p: 0.002, 0.001, 0.001, respectively). Kaplan-Meier analysis revealed that a complete right bundle branch block (CRBBB) of initial-ECG and presence of atrial fibrillation were associated with an increased risk of all-cause mortality (Picture).
Serial change of ECG variables Initial-ECG 2nd-ECG Group S Group D p Group S Group D p Heart Rate [/min] 109±23 105±31 0.527 88±21 94±23 0.341 Af [N,%] 10 (25%) 27 (52%) 0.018* 3 (9%) 6 (26%) 0.134 QRS duration [ms] 111±18 139±33 0.001* 107±29 111±30 0.623 Morphology 0.001* 0.284 – Normal [N,%] 30 (75%) 10 (19%) 29 (81%) 14 (61%) – CRBBB [N,%] 5 (13%) 30 (57%) 5 (14%) 5 (22%) – CLBBB [N,%] 1 (2%) 0 0 1 (4%) – IVCD [N,%] 4 (10%) 13 (24%) 2 (6%) 3 (13%) Comparing variables between group S and group D stratified by initial ECG and delayed ECG. QRS morphology were examined, normal, complete right bundle branch block (CRBBB), complete left bundle branch block (CLBBB), and unspecific interventricular conduction delay (IVCD).
Study flow diagram, KM curve analysis
Conclusions
The QRS duration and morphology upon resuscitation were associated with an increased risk of all-cause mortality following OHCA.
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Affiliation(s)
- M Iiya
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Shimizu
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
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Shimizu M, Iiya M, Hara K, Ohmori M, Taomoto Y, Kaneda T, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M. P5643Simple 12-leads electrocardiography can predict cardiac death in patients with complete left bundle branch block. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Patients with complete left bundle branch block (CLBBB) generally fall in two categories: CLBBB with good prognosis and poor prognosis. However, a simple electrocardiography (ECG) was considered impossible to predict the two categories.
Purpose
To elucidate the possibility of 12-leads ECG for predicting cardiac prognosis in patients with CLBBB
Methods
To estimate myocardial damage and left ventricular function, the ECG was performed with semiconductor SPECT simultaneously. Among consecutive 5864 patients who underwent ECG gated SPECT, finally 103 sinus-rhythm patients were enrolled. The observed period of them was median 632 days, and primary endpoint was set as cardiac death.
Results
Eight patients fell into cardiac death. Cox univariate analysis showed ventricular activation time (VAT: duration from onset of Q wave to peak of R wave) in V1 lead, T wave amplitude in aVR (aVR T-amp), and multiple fragmented QRS (At least 2 fQRS in LV anterior/inferior/lateral wall), and left ventricular ejection fraction, standard deviation of phase analysis (Phase SD), and summed rest score were significant predictors. After optimization of all significant continuous predictors by ROC curve analysis, all the significant predictors were analyzed by multivariate Cox analysis (stepwise regression). VAT in V1 (Hazard ratio: 4.594, P=0.034), aVR T-amp ≥-85microV (HR: 11.11, P=0.029), and Phase SD≥48.7 (HR6.047, P=0.035) were independent predictors. Kaplan-Meyer curve analysis demonstrated VAT V1≥70 and aVR T amp≥-85 showed the worst prognosis (P=0.008).
Cox Regression after Optimization by ROC Univariate Multivariate (Stepwise regression) HR 95% CI P HR 95% CI P VAT I ≥70 6.861 1.759–26.76 0.006 4.594 1.126–18.75 0.034 T amp in aVR ≥−85 27.34 3.458–216.2 0.002 11.11 1.274–96.85 0.029 Multiple fQRS 3.836 1.081–13.61 0.037 LVEF ≤37% 7.250 1.874–28.04 0.004 SD ≥48.7 17.30 3.671–81.57 <0.001 6.047 1.133–32.28 0.035 SRS≥17 4.178 1.206–14.48 0.024 SD: standard deviation of histogram by phase analysis of SPECT; SRS: summed rest score by myocardial perfusion analysis of SPECT.
Conclusion
Simple 12-leads ECG could predict the prognosis of patients with CLBBB.
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Iiya
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Hara
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Ohmori
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Taomoto
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
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Kanehama N, Kimura S, Kawakami T, Tateishi R, Tachibana S, Hayasaka K, Arai H, Hiroki J, Yoshioka K, Kuroda S, Ueshima D, Iwatsuka R, Hayashi T, Mizukami A, Matsumura A. P6154Association between n-3 and n-6 polyunsaturated fatty acids and plaque vulnerability by optical coherence tomography in acute myocardial infarction patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0760] [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
The values of n-3 and n-6 polyunsaturated fatty acids (PUFAs) like low eicosapentaenoic acid (EPA) /arachidonic acid (AA) ratio are known to be associated with cardiovascular events, however their relationship with coronary plaque vulnerability in acute myocardial infarction (AMI) is not revealed.
Purpose
We evaluated the relationship between n-3 and n-6 PUFAs and coronary plaque vulnerability assessed by optical coherence tomography (OCT) in AMI patients.
Methods
We investigated 79 AMI lesions (51 ST elevated myocardial infarction (STEMI) lesions and 28 non-STEMI lesions) that had undergone emergency percutaneous coronary intervention using OCT. Coronary plaque characteristics by OCT were compared with n-3 and n-6 PUFAs values which were measured on admission.
Results
Of all AMI lesions (n=79), 43 thin-cap fibroatheroma (TCFA) and 35 plaque rapture (PR) were detected by OCT. Lesions with TCFA had no significant relationship with n-3 and n-6 PUFAs values, whereas lesion with PR had significantly lower EPA values than those without (55.8±29.5 vs 74.3±37.1 μg/ml, p=0.018). Median low-density lipoprotein (LDL) cholesterol value was 117 (98–137) mg/dl and sub-analysis in patients who had lower LDL cholesterol values than median (n=39) revealed that EPA values were significantly lower in lesions with TCFA (56.3±30.9 vs 85.3±47.7 μg/ml, p=0.03). In STEMI patients, the values of EPA and EPA/AA ratio were significantly lower in lesions with TCFA (EPA: 55.5±22.8 vs 80.8±46.1 μg/ml, p=0.01; EPA/AA ratio: 0.34±0.16 vs 0.50±0.36, p=0.03). STEMI patients who had lower LDL cholesterol values <114 mg/dl of median (n=26), the values of EPA, EPA/AA ratio, and EPA+ docosahexaenoic acid (DHA) /AA ratio were significantly lower in lesions with TCFA (EPA: 51.4±20.7 vs 93.1±53.0 μg/ml, p=0.01; EPA/AA ratio: 0.37±0.16 vs 0.67±0.41, p=0.01; EPA+DHA/AA ratio: 1.13±0.41 vs 1.63±0.76, p=0.04). In STEMI patients with lower LDL cholesterol values, EPA/AA ratio positively correlated with fibrous cap thickness (Spearman, ρ=0.35, p=0.08). The cutoff value of EPA/AA ratio predicting the existence of TCFA was 0.52 (area under the curve 0.78, sensitivity 93.8%, specificity 70.0%, p=0.02).
Conclusion
This study demonstrated that n-3 and n-6 PUFAs values were associated with coronary plaque vulnerability by OCT in AMI patients, especially in STEMI. These results suggest that n-3 and n-6 PUFAs may be residual risk markers of severe acute cardiovascular events in patients with low LDL cholesterol values.
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Affiliation(s)
- N Kanehama
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Cardiology, Yokohama, Japan
| | - T Kawakami
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - R Tateishi
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - S Tachibana
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - K Hayasaka
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - H Arai
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - J Hiroki
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - K Yoshioka
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - S Kuroda
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - D Ueshima
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - R Iwatsuka
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - T Hayashi
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - A Mizukami
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - A Matsumura
- Kameda Medical Center, Cardiology, Kamogawa, Japan
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Kakuta T, Komatsu S, Kojima K, Fujii H, Kimura S, Dai K, Kawakami H, Matsuoka H, Higuchi Y, Abe H, Inoue T, Okumura Y, Asakura M, Hirayama A, Kodama K. P1831Prediction of cardiovascular events by atheromatous plaques detected by non-obstructive general angioscopy: two-year results of EAST-NOGA Registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0583] [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
Non-obstructive general angioscopy (NOGA) has revealed the intimal damages or atheromatous plaques as well as its spontaneous rupture of the aorta. Recent study revealed that plaque debris or different size of cholesterol crystals were detected in the blood above the spontaneous ruptured aortic plaque observed by NOGA and these plaque materials might cause the peripheral organ damages as the embolic source. These various morphological changes may cause the acute aortic events or atheroembolic events on the peripheral organs, such as brain, kidney, peripheral artery and so on.
Purpose
EAST-NOGA (Evaluation of AtheroSclerotic and rupture events by Non-Obstructive General Angioscopy) is a multi-center prospective observational study to assess the relationship between the findings of NOGA and future cardiovascular events.
Methods
Five hundred and seventy-seven patients with atherosclerotic cardiovascular disease who underwent NOGA study. The major cerebrocardiovascular events including cardiovascular death, non-fatal myocardial infarction, non-fatal cerebral infarction, and acute aortic syndrome were accumulated during the 2-year follow-up after NOGA study.
Results
The median number of aortic atheromatous plaques was 6 [IQR: 3–12]. A total of 514 patients were followed up (89.1%). The mean follow-up duration was 757±120 days. Major adverse cardiovascular events developed in 23 (4.5%) during 2 years follow-up. Patients with MACE and cerebral infarction, had significantly greater number of aortic atheromatous plaques (11 [5–19] vs. 6 [3–11], p<0.001, 12 [4–20] vs. 6 [3–12], p=0.014, respectively). In a univariate analysis, the number of aortic atheromatous plaques and ruptured plaque were significant predictors of MACE (HR: 1.09 95% confidence interval 1.05–1.14, p<0.001) and (HR: 1.12, 95% confidence interval 1.02–1.23, p=0.02). In a multivariate logistic analysis, the number of aortic atheromatous plaques is one of the independent predictors of MACE (HR 1.05, 95% confidence interval 1.00–1.10, p=0.032).
Conclusion
The number of atheromatous plaques identified by NOGA has a significant relation to the onset of cerebral infarction, which suggest the atheromatous plaque were vulnerable and ruptured spontaneously, then cause the aortogenic cerebral infarction. The NOGA study would be useful for predicting the futured atheroembolic events.
Acknowledgement/Funding
None
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Affiliation(s)
- T Kakuta
- Tsuchiura Kyodo Hospital, Tsuchiura, Japan
| | - S Komatsu
- Osaka Gyoumeikan Hospital, Osaka, Japan
| | - K Kojima
- Nihon University School of Medicine, Tokyo, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - K Dai
- Hiroshima City Hospital, Hiroshima, Japan
| | - H Kawakami
- Ehime Prefectural Imabari Hospital, Imabari, Japan
| | - H Matsuoka
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | | | - H Abe
- Dokkyo Medical University, Mibu, Japan
| | - T Inoue
- Dokkyo Medical University, Mibu, Japan
| | - Y Okumura
- Nihon University School of Medicine, Tokyo, Japan
| | - M Asakura
- Hyogo College of Medicine, Nishinomiya, Japan
| | | | - K Kodama
- Osaka Gyoumeikan Hospital, Osaka, Japan
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Kashiwada T, Nishioka A, Aragane N, Kimura S. Paclitaxel plus ramucirumab combination therapy as second-line therapy in elderly patients with metastatic advanced gastric cancer: A single-center retrospective study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tanaka Y, Kimura S, Ishii Y, Tateda K. Equol inhibits growth and spore formation of Clostridioides difficile. J Appl Microbiol 2019; 127:932-940. [PMID: 31211883 DOI: 10.1111/jam.14353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 06/01/2019] [Accepted: 06/12/2019] [Indexed: 12/15/2022]
Abstract
AIMS Equol is a nonsteroidal oestrogen of the isoflavone class. We investigated the antibacterial ability of equol with respect to the growth rate, toxin production and spore-forming abilities of Clostridioides difficile BI/027/NAP1. METHODS AND RESULTS Isoflavones, or female hormones, were added to bacterial culture, which was grown at 35°C. The absorbance of the culture was measured at various time points for evaluating the growth inhibition. The toxin levels in the media and morphological changes were also assessed. To evaluate the influence of equol on the sporulation of C. difficile, cells were collected at various time points from the equol-supplemented culture and the number of spores was counted. Our results show that equol inhibits bacterial growth in a concentration-dependent manner. However, it does not inhibit the production of toxin by C. difficile. Other isoflavones and female hormones did not inhibit the C. difficile growth. At the 14th day, approximately 600 spores were present in the control medium and only six were seen in the equol-containing medium. CONCLUSION Our results suggest that equol may directly inhibit the C. difficile growth in a concentration-dependent manner and spore formation. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first report on the antimicrobial ability of equol.
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Affiliation(s)
- Y Tanaka
- Department of Microbiology and Infectious Diseases, Toho University Graduate School of Medicine, Tokyo, Japan
| | - S Kimura
- Department of Microbiology and Infectious Diseases, Toho University Graduate School of Medicine, Tokyo, Japan
| | - Y Ishii
- Department of Microbiology and Infectious Diseases, Toho University Graduate School of Medicine, Tokyo, Japan
| | - K Tateda
- Department of Microbiology and Infectious Diseases, Toho University Graduate School of Medicine, Tokyo, Japan
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Zvyagin SA, Graf D, Sakurai T, Kimura S, Nojiri H, Wosnitza J, Ohta H, Ono T, Tanaka H. Pressure-tuning the quantum spin Hamiltonian of the triangular lattice antiferromagnet Cs 2CuCl 4. Nat Commun 2019; 10:1064. [PMID: 30842420 PMCID: PMC6403288 DOI: 10.1038/s41467-019-09071-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 02/13/2019] [Indexed: 11/23/2022] Open
Abstract
Quantum triangular-lattice antiferromagnets are important prototype systems to investigate numerous phenomena of the geometrical frustration in condensed matter. Apart from highly unusual magnetic properties, they possess a rich phase diagram (ranging from an unfrustrated square lattice to a quantum spin liquid), yet to be confirmed experimentally. One major obstacle in this area of research is the lack of materials with appropriate (ideally tuned) magnetic parameters. Using Cs2CuCl4 as a model system, we demonstrate an alternative approach, where, instead of the chemical composition, the spin Hamiltonian is altered by hydrostatic pressure. The approach combines high-pressure electron spin resonance and r.f. susceptibility measurements, allowing us not only to quasi-continuously tune the exchange parameters, but also to accurately monitor them. Our experiments indicate a substantial increase of the exchange coupling ratio from 0.3 to 0.42 at a pressure of 1.8 GPa, revealing a number of emergent field-induced phases. Theoretical studies of quantum magnetism typically assume idealised lattices with freely tunable parameters, which are difficult to realise experimentally. Zvyagin et al. perform challenging measurements at high pressures to tune and to accurately monitor the exchange parameters of a triangular lattice antiferromagnet.
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Affiliation(s)
- S A Zvyagin
- Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany.
| | - D Graf
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310, USA
| | - T Sakurai
- Research Facility Center for Science and Technology, Kobe University, Kobe, 657-8501, Japan
| | - S Kimura
- Institute for Materials Research, Tohoku University, Sendai, 980-8578, Japan
| | - H Nojiri
- Institute for Materials Research, Tohoku University, Sendai, 980-8578, Japan
| | - J Wosnitza
- Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany.,Institut für Festkörper- und Materialphysik, TU Dresden, 01062, Dresden, Germany
| | - H Ohta
- Molecular Photoscience Research Center, Kobe University, Kobe, 657-8501, Japan
| | - T Ono
- Department of Physical Science, Osaka Prefecture University, Osaka, 599-8531, Japan
| | - H Tanaka
- Department of Physics, Tokyo Institute of Technology, Tokyo, 152-8551, Japan
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Sakurai T, Kimura S, Kimata M, Nojiri H, Awaji S, Okubo S, Ohta H, Uwatoko Y, Kudo K, Koike Y. Development and application of 2.5 GPa-25 T high-pressure high-field electron spin resonance system using a cryogen-free superconducting magnet. J Magn Reson 2018; 296:1-4. [PMID: 30165264 DOI: 10.1016/j.jmr.2018.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/20/2018] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
We have developed a high-pressure electron spin resonance probe and successfully installed into the world's highest-field cryogen-free superconducting magnet having a maximum central field of 24.6 T. The high pressure of 2.5 GPa is achieved by the specially designed piston-cylinder pressure cell using THz-wave-transparent components. In the first application of this high-pressure high-field ESR system, we observed that the orthogonal dimer spin system SrCu2(BO3)2 undergoes a quantum phase transition from the dimer singlet ground to the plaquette singlet ground states.
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Affiliation(s)
- T Sakurai
- Research Facility Center for Science and Technology, Kobe University, Nada, Kobe 657-8501, Japan.
| | - S Kimura
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - M Kimata
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - H Nojiri
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - S Awaji
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - S Okubo
- Molecular Photoscience Research Center, Kobe University, Nada, Kobe 657-8501, Japan
| | - H Ohta
- Molecular Photoscience Research Center, Kobe University, Nada, Kobe 657-8501, Japan
| | - Y Uwatoko
- Institute for Solid State Physics, University of Tokyo, Chiba 277-8581, Japan
| | - K Kudo
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - Y Koike
- Department of Applied Physics, Tohoku University, Sendai 980-8579, Japan
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Nakamura T, Nakashima C, Komiya K, Kimura S, Sueoka-Aragane N. P3.13-18 Mechanisms of Acquired Resistance to Afatinib Clarified with Liquid Biopsy. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Healy D, Kimura S, Power D, Elhaj A, Abdeldaim Y, Cross K, McGreal G, Burke P, Moloney T, Manning B, Kavanagh E. A Systematic Review and Meta-analysis of Thrombotic Events Following Endovenous Thermal Ablation of the Great Saphenous Vein. J Vasc Surg 2018. [DOI: 10.1016/j.jvs.2018.08.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tateishi R, Kimura S, Kawakami T, Kanehama N, Tachibana S, Arai H, Hayasaka K, Hara S, Hiroki J, Yoshioka K, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P5502Comparison of accuracy of fractional flow reserve using optical sensor wire to conventional pressure wire. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- R Tateishi
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Kimura
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - T Kawakami
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - N Kanehama
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Tachibana
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - H Arai
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - K Hayasaka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Hara
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - J Hiroki
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - K Yoshioka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Kuroda
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - R Iwatsuka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - A Mizukami
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - T Hayashi
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - A Matsumura
- Kameda Medical Center, Cardiology, Chiba, Japan
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Kimura S, Kawakami T, Kanehama N, Tateishi R, Tachibana S, Arai H, Hara S, Hayasaka K, Hiroki J, Yoshioka K, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P2629Reliability of optical coherence tomography in the prediction of occurrence of side-branch complications after percutaneous coronary intervention. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Kimura
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - T Kawakami
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - N Kanehama
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - R Tateishi
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Tachibana
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - H Arai
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Hara
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - K Hayasaka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - J Hiroki
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - K Yoshioka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Kuroda
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - R Iwatsuka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - A Mizukami
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - T Hayashi
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - A Matsumura
- Cardiology, Kameda Medical Center, Kamogawa, Japan
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