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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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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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3
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Uchiyama H, Ban K, Nozaki S, Ikeda Y, Ishimoto T, Fujioka H, Kamiya M, Amari R, Tsujino H, Arai M, Yamazoe S, Maekawa K, Kato T, Doi M, Kadota K, Tozuka Y, Tomita N, Sajiki H, Akai S, Sawama Y. Impact of multiple H/D replacements on the physicochemical properties of flurbiprofen. RSC Med Chem 2023; 14:2583-2592. [PMID: 38107175 PMCID: PMC10718516 DOI: 10.1039/d3md00357d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/06/2023] [Indexed: 12/19/2023] Open
Abstract
Although deuterium incorporation into pharmaceutical drugs is an attractive way to expand drug modalities, their physicochemical properties have not been sufficiently examined. This study focuses on examining the changes in physicochemical properties between flurbiprofen (FP) and flurbiprofen-d8 (FP-d8), which was successfully prepared by direct and multiple H/D exchange reactions at the eight aromatic C-H bonds of FP. Although the effect of deuterium incorporation was not observed between the crystal structures of FP and FP-d8, the melting point and heat of fusion of FP-d8 were lower than those of FP. Additionally, the solubility of FP-d8 increased by 2-fold compared to that of FP. Calculation of the interaction energy between FP/FP-d8 and water molecules using the multi-component density functional theory method resulted in increased solubility of FP-d8. These novel and valuable findings regarding the changes in physicochemical properties triggered by deuterium incorporation can contribute to the further development of deuterated drugs.
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Affiliation(s)
- Hiromasa Uchiyama
- Department of Formulation Design and Pharmaceutical Technology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University 4-20-1 Nasahara Takatsuki Osaka 569-1094 Japan
| | - Kazuho Ban
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6, Yamada-oka Suita Osaka 565-0871 Japan
| | - Shiho Nozaki
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6, Yamada-oka Suita Osaka 565-0871 Japan
| | - Yui Ikeda
- Department of Formulation Design and Pharmaceutical Technology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University 4-20-1 Nasahara Takatsuki Osaka 569-1094 Japan
| | - Takayoshi Ishimoto
- Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Hiroyoshi Fujioka
- Department of Life Science and Technology, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama Kanagawa 226-8501 Japan
| | - Mako Kamiya
- Department of Life Science and Technology, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama Kanagawa 226-8501 Japan
- Living Systems Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama Kanagawa 226-8501 Japan
| | - Ryugo Amari
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6, Yamada-oka Suita Osaka 565-0871 Japan
| | - Hirofumi Tsujino
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6, Yamada-oka Suita Osaka 565-0871 Japan
| | - Masayoshi Arai
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6, Yamada-oka Suita Osaka 565-0871 Japan
| | - Sachi Yamazoe
- Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts 97-1 Minamihokodate Koudo Kyotanabe, Kyoto 610-0395 Japan
| | - Keiko Maekawa
- Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts 97-1 Minamihokodate Koudo Kyotanabe, Kyoto 610-0395 Japan
| | - Takuma Kato
- Department of Formulation Design and Pharmaceutical Technology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University 4-20-1 Nasahara Takatsuki Osaka 569-1094 Japan
| | - Mitsunobu Doi
- Department of Formulation Design and Pharmaceutical Technology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University 4-20-1 Nasahara Takatsuki Osaka 569-1094 Japan
| | - Kazunori Kadota
- Department of Formulation Design and Pharmaceutical Technology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University 4-20-1 Nasahara Takatsuki Osaka 569-1094 Japan
| | - Yuichi Tozuka
- Department of Formulation Design and Pharmaceutical Technology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University 4-20-1 Nasahara Takatsuki Osaka 569-1094 Japan
| | - Naohito Tomita
- Gifu Pharmaceutical University 1-25-4-Daigaku-nishi Gifu 501-1196 Japan
| | - Hironao Sajiki
- Gifu Pharmaceutical University 1-25-4-Daigaku-nishi Gifu 501-1196 Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6, Yamada-oka Suita Osaka 565-0871 Japan
| | - Yoshinari Sawama
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6, Yamada-oka Suita Osaka 565-0871 Japan
- Deuterium Science Research Unit, Center for the Promotion of Interdisciplinary Education and Research, Kyoto University Yoshida, Sakyo-ku Kyoto 606-8501 Japan
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Moriyama S, Mae M, Shibata D, Yamakoshi H, Kajimoto S, Nakabayashi T, Ishimoto T, Mogi K, Sajiki H, Akai S, Sawama Y. Multiple deuteration of triphenylphosphine and live-cell Raman imaging of deuterium-incorporated Mito-Q. Chem Commun (Camb) 2023; 59:12100-12103. [PMID: 37721453 DOI: 10.1039/d3cc04410f] [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: 09/19/2023]
Abstract
All aromatic C-H bonds of triphenylphosphine (PPh3) were efficiently replaced by C-D bonds using Ru/C and Ir/C co-catalysts in 2-PrOH and D2O, an inexpensive deuterium source. Furthermore, non-radioactive and safe deuterium-incorporated Mito-Q (drug candidate) was prepared from deuterated PPh3 and used for the live-cell Raman imaging to evaluate the mitochondrial uptake.
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Affiliation(s)
- Shogo Moriyama
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6, Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Miyu Mae
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6, Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Daiki Shibata
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Hiroyuki Yamakoshi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Shinji Kajimoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
- JST PRESTO, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Takakazu Nakabayashi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Takayoshi Ishimoto
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Kaiki Mogi
- Gifu Pharmaceutical University, 1-25-4-Daigaku-nishi, Gifu 501-1196, Japan
| | - Hironao Sajiki
- Gifu Pharmaceutical University, 1-25-4-Daigaku-nishi, Gifu 501-1196, Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6, Yamada-oka, Suita, Osaka 565-0871, Japan.
| | - Yoshinari Sawama
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6, Yamada-oka, Suita, Osaka 565-0871, Japan.
- Deuterium Science Research Unit, Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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Shimohata Y, Kanematsu Y, Rivera Rocabado DS, Ishimoto T. Quantum Effects of Hydrogen Nuclei on the Nuclear Magnetic Shielding Tensor of Ice I h. J Phys Chem A 2023; 127:8025-8031. [PMID: 37735111 DOI: 10.1021/acs.jpca.3c01318] [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: 09/23/2023]
Abstract
Ice is the most fundamental hydrogen-bonded system in which the hydrogen nuclear quantum effect significantly impacts the structure and relevant thermochemical and spectroscopic properties. While ice was experimentally investigated using proton nuclear magnetic resonance spectroscopy more than 40 years ago, the corresponding theoretical investigations have been rarely reported due to the difficulty in evaluating how the proton nuclear quantum effect influences the spectral characteristics of such a condensed material. In this study, we applied a combination of the ONIOM and multicomponent molecular orbital (MC_MO) methods for calculating the anisotropic and isotropic components of the nuclear magnetic shielding tensor of the hexagonal ice crystal to quantify the effects of nuclear quantum fluctuations on the spectroscopic properties of ice. The nuclear magnetic shielding values computed by incorporating the hydrogen nuclear quantum effect reasonably agree with the experimental values. The nuclear quantum effects were found to increase the anisotropic component of the magnetic shielding tensor while decreasing the isotropic component. Such a difference can be explained by their distinct dependence on the electrostatic field and hydrogen-bonding structural parameters.
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Affiliation(s)
- Yuya Shimohata
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Yusuke Kanematsu
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - David S Rivera Rocabado
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Takayoshi Ishimoto
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
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Imai K, Tomita N, Fujioka H, Kamiya M, Ogasahara R, Ban K, Shimizu H, Ishimoto T, Sajiki H, Akai S, Sawama Y. Homemade Solution of NaOD in D
2
O: Applications in the Field of Stilbene‐
d
1
Synthesis. ASIAN J ORG CHEM 2023. [DOI: 10.1002/ajoc.202300084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2023]
Affiliation(s)
- Keisuke Imai
- Graduate School of Pharmaceutical Sciences Osaka University 1-6, Yamada-oka, Suita Osaka 565-0871 Japan
| | - Naohito Tomita
- A Laboratory of Organic Chemistry Gifu Pharmaceutical University 1-25-4-Daigaku-nishi Gifu 501-1196 Japan
| | - Hiroyoshi Fujioka
- Graduate School of Pharmaceutical Sciences The University of Tokyo Tokyo 113-0033 Japan
| | - Mako Kamiya
- Graduate School of Medicine The University of Tokyo Tokyo 113-0033 Japan
- Department of Life Science and Technology Tokyo Institute of Technology Kanagawa 226–8501 Japan
| | - Riku Ogasahara
- Graduate School of Pharmaceutical Sciences Osaka University 1-6, Yamada-oka, Suita Osaka 565-0871 Japan
| | - Kazuho Ban
- Graduate School of Pharmaceutical Sciences Osaka University 1-6, Yamada-oka, Suita Osaka 565-0871 Japan
| | - Hyoga Shimizu
- Graduate School of Pharmaceutical Sciences Osaka University 1-6, Yamada-oka, Suita Osaka 565-0871 Japan
| | - Takayoshi Ishimoto
- Graduate School of Advanced Science and Engineering Hiroshima University 1-4-1 Kagamiyama, Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Hironao Sajiki
- A Laboratory of Organic Chemistry Gifu Pharmaceutical University 1-25-4-Daigaku-nishi Gifu 501-1196 Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences Osaka University 1-6, Yamada-oka, Suita Osaka 565-0871 Japan
| | - Yoshinari Sawama
- Graduate School of Pharmaceutical Sciences Osaka University 1-6, Yamada-oka, Suita Osaka 565-0871 Japan
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Imai K, Tomita N, Fujioka H, Kamiya M, Ogasahara R, Ban K, Shimizu H, Ishimoto T, Sajiki H, Akai S, Sawama Y. Homemade Solution of NaOD in D2O: Applications in the Field of Stilbene‐d1 Synthesis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Keisuke Imai
- Osaka University Graduate School of Pharmaceutical Science JAPAN
| | - Naohito Tomita
- Gifu Pharmaceutical University A Laboratory of Organic Chemistry JAPAN
| | - Hiroyoshi Fujioka
- The university of Tokyo Graduate School of Pharmaceutical Sciences JAPAN
| | - Mako Kamiya
- Tokyo Institute of Technology Department of Life Science and Technology JAPAN
| | - Riku Ogasahara
- Osaka University Graduate School of Pharmaceutical Sciences JAPAN
| | - Kazuho Ban
- Osaka University Graduate School of Pharmaceutical Sciences JAPAN
| | - Hyoga Shimizu
- Osaka University Graduate School of Pharmaceutical Sciences JAPAN
| | - Takayoshi Ishimoto
- Hiroshima University Graduate School of Advanced Science and Engineering JAPAN
| | - Hironao Sajiki
- Gifu Pharmaceutical University A Laboratory of Organic Chemistry JAPAN
| | - Shuji Akai
- Osaka University Graduate School of Pharmaceutical Sciences JAPAN
| | - Yoshinari Sawama
- Osaka University Graduate School of Pharmaceutical Sciences 1-6, Yamada-oka 565-0871 Osaka JAPAN
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8
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Katori T, Kunishige S, Baba M, Nakayama N, Ishimoto T, Nishiyama A, Yamasaki S, Misono M. Electronic, vibrational, and rotational analysis of 1,2-benzanthracene by high-resolution spectroscopy referenced to an optical frequency comb. J Chem Phys 2022; 157:234303. [PMID: 36550042 DOI: 10.1063/5.0129297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
The electronic and vibrational structures of 1,2-benzanthracene-h12 (aBA-h12) and 1,2-benzanthracene-d12 (aBA-d12) were elucidated by analyzing fluorescence excitation spectra and dispersed fluorescence spectra in a supersonic jet on the basis of DFT calculation. We also observed the high-resolution and high-precision fluorescence excitation spectrum of the S1←S000 0 band, and determined the accurate rotational constants in the zero-vibrational levels of the S0 and S1 states. In this high-resolution measurement, we used a single-mode UV laser whose frequencies were controlled with reference to an optical frequency comb. The inertial defect is negligibly small, the molecule is considered to be planar, and the obtained rotational constants were well reproduced by the equation-of-motion coupled cluster singles and doubles (EOM-CCSD) calculation. Both a-type and b-type transitions are found to be included in the rotationally resolved spectrum, and the a-type contribution is dominant, that is, the transition moment is nearly parallel to the long axis of the aBA molecule. We concluded that the S1 state is mainly composed of the Φ(B) configuration. The observed fluorescence lifetime (106 ns) is considerably longer than that of the Φ(A) system, such as anthracene (18 ns). The transition moment for the lower state of mixed states becomes small, reflecting a near-cancelation of the contributions from the parts of the wavefunction corresponding to the two electronic configurations. The bandwidth of the S2 ← S0 transition is large, and the structure is complicated. It is attributed to vibronic coupling with the high vibrational levels of the S1 state.
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Affiliation(s)
- Toshiharu Katori
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Sachi Kunishige
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Masaaki Baba
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Naofumi Nakayama
- CONFLEX Corporation, 2-15-19 Kami-osaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Takayoshi Ishimoto
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Akiko Nishiyama
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8563, Japan
| | - Sho Yamasaki
- Department of Applied Physics, Faculty of Science, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan
| | - Masatoshi Misono
- Department of Applied Physics, Faculty of Science, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan
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9
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Kimura Y, Kanematsu Y, Sakagami H, Rivera Rocabado DS, Shimazaki T, Tachikawa M, Ishimoto T. Hydrogen/Deuterium Transfer from Anisole to Methoxy Radicals: A Theoretical Study of a Deuterium-Labeled Drug Model. J Phys Chem A 2022; 126:155-163. [PMID: 34981930 DOI: 10.1021/acs.jpca.1c08514] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recently, deuterium-labeled drugs, such as deutetrabenazine, have attracted considerable attention. Consequently, understanding the reaction mechanisms of deuterium-labeled drugs is crucial, both fundamentally and for real applications. To understand the mechanisms of H- and D-transfer reactions, in this study, we used deuterated anisole as a deutetrabenazine model and computationally considered the nuclear quantum effects of protons, deuterons, and electrons. We demonstrated that geometrical differences exist in the partially and fully deuterated methoxy groups and hydrogen-bonded structures of intermediates and transition states due to the H/D isotope effect. The observed geometrical features and electronic structures are ascribable to the different nuclear quantum effects of protons and deuterons. Primary and secondary kinetic isotope effects (KIEs) were calculated for H- and D-transfer reactions from deuterated and undeuterated anisole, with the calculated primary KIEs in good agreement with the corresponding experimental data. These results reveal that the nuclear quantum effects of protons and deuterons need to be considered when analyzing the reaction mechanisms of H- and D-transfer reactions and that a theoretical approach that directly includes nuclear quantum effects is a powerful tool for the analysis of H/D isotope effects in H- and D-transfer reactions.
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Affiliation(s)
- Yuka Kimura
- International College of Arts and Sciences, Yokohama City University, 22-2 Seto, Kanazawa, Yokohama 236-0027, Japan
| | - Yusuke Kanematsu
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan.,Division of Materials Model-Based Research, Digital Monozukuri (Manufacturing) Education and Research Center, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Hiroki Sakagami
- Graduate School of Data Science, Yokohama City University, 22-2 Seto, Kanazawa, Yokohama 236-0027, Japan
| | - David S Rivera Rocabado
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Tomomi Shimazaki
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa, Yokohama 236-0027, Japan
| | - Masanori Tachikawa
- Graduate School of Data Science, Yokohama City University, 22-2 Seto, Kanazawa, Yokohama 236-0027, Japan
| | - Takayoshi Ishimoto
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan.,Division of Materials Model-Based Research, Digital Monozukuri (Manufacturing) Education and Research Center, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan.,Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa, Yokohama 236-0027, Japan
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10
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Rivera Rocabado DS, Noguchi TG, Hayashi S, Maeda N, Yamauchi M, Ishimoto T. Adsorption States of N 2/H 2 Activated on Ru Nanoparticles Uncovered by Modulation-Excitation Infrared Spectroscopy and Density Functional Theory Calculations. ACS Nano 2021; 15:20079-20086. [PMID: 34860010 DOI: 10.1021/acsnano.1c07825] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The adsorption states of N2 and H2 on MgO-supported Ru nanoparticles under conditions close to those of ammonia synthesis (AS; 1 atm, 250 °C) were uncovered by modulation-excitation infrared spectroscopy and density functional theory calculations using a nanoscale Ru particle model. The two most intense N2 adsorption peaks corresponded to the vertical chemisorption of N2 on the nanoparticle's top and bridge sites, while the remaining peaks were assigned to horizontally adsorbed N2 in view of the site heterogeneity of Ru nanoparticles. Long-term observations showed that vertically adsorbed N2 molecules gradually migrated from the top sites to the bridge sites. Compared to those adsorbed vertically, N2 molecules adsorbed horizontally exhibited a lower dipole moment, an increased N─N bond distance, and a decreased N─N bond order (i.e., were activated), which was ascribed to enhanced Ru-to-N charge transfer. H2 molecules were preferentially adsorbed horizontally on top sites and then rapidly dissociated to afford strongly surface-bound H atoms and thus block the active sites of Ru nanoparticles. Our results clarify the controversial adsorption/desorption behavior of N2 and H2 on AS catalysts and facilitate their further development.
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Affiliation(s)
- David S Rivera Rocabado
- Graduate School of Nanobioscience, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Tomohiro G Noguchi
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shio Hayashi
- International College of Arts and Sciences, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Nobutaka Maeda
- Institute of Materials and Process Engineering (IMPE), Zürcher Hochschule für Angewandte Wissenschaften (ZHAW), Technikumstrasse 9, 8401 Winterthur, Switzerland
| | - Miho Yamauchi
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Takayoshi Ishimoto
- Graduate School of Nanobioscience, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
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11
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Takaishi M, Ishimoto T, Tokunaga M, Kokubu C, Takeda J, Sano S. 104 Ahed, a novel spliceosomal protein, is essential for the development and maintenance of the epidermis through regulation of mRNA splicing. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.107] [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: 10/20/2022]
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12
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Eguchi H, Kobayashi T, Yamada T, Rocabado DSR, Ishimoto T, Yamauchi M. Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO 2/Ti mesh electrode. Sci Rep 2021; 11:13929. [PMID: 34230515 PMCID: PMC8260709 DOI: 10.1038/s41598-021-93269-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 04/29/2021] [Indexed: 11/09/2022] Open
Abstract
We demonstrate thermo-electrochemical (TEC) conversion using a biocompatible redox couple of lactic acid and pyruvic acid on earth-abundant TiO2. The TEC cell exhibited a positive Seebeck coefficient of 1.40 mV K-1. DFT calculations figured out that the adsorption of intermediate species and protons on TiO2 controls both the redox reaction and current polarity.
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Affiliation(s)
- Hiroto Eguchi
- Department of Chemistry, Graduate School of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takashi Kobayashi
- Division of Applied Chemistry, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Teppei Yamada
- Division of Applied Chemistry, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan. .,Center for Molecular Systems, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - David S Rivera Rocabado
- Graduate School of Nanobioscience, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama, 236-0027, Japan
| | - Takayoshi Ishimoto
- Graduate School of Nanobioscience, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama, 236-0027, Japan. .,Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Kagamiyama 1-4-1, Higashi-Hiroshima, Hiroshima, 739-8527, Japan.
| | - Miho Yamauchi
- Department of Chemistry, Graduate School of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan. .,International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan. .,Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan.
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13
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Yodsin N, Sakagami H, Udagawa T, Ishimoto T, Jungsuttiwong S, Tachikawa M. Metal-doped carbon nanocones as highly efficient catalysts for hydrogen storage: Nuclear quantum effect on hydrogen spillover mechanism. Molecular Catalysis 2021. [DOI: 10.1016/j.mcat.2021.111486] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Ito W, Hattori S, Kondo M, Sakagami H, Kobayashi O, Ishimoto T, Shinozaki K. Dual emission from an iridium(III) complex/counter anion ion pair. Dalton Trans 2021; 50:1887-1894. [PMID: 33475646 DOI: 10.1039/d1dt00021g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
[Ir(tpy)2](PF6)3 (tpy = 2,2':6',2''-terpyridine) dissolved in CH3CN was found to exhibit dual color luminescent emission depending on the excitation wavelength. Specifically, blue and green emissions were obtained with excitation at 350 and 410 nm, respectively. Because the associated emission spectra were consistent with those of [Ir(tpy)2]Cl3 in water and [Ir(tpy)2](PF6)3 in the crystalline state, respectively, this dual emission is attributed to emissions from the [Ir(tpy)2]3+ cation and its ion pair [Ir(tpy)2]3+·PF6-. The emission is assigned to the 3π-π* transition of the ligands based on time-dependent density functional theory (TD-DFT) calculations. Conversely, [Ir(tpy)2]I3 in CH3CN shows emission due to [Ir(tpy)2]3+ but not [Ir(tpy)2]3+·I-, while crystalline [Ir(tpy)2]I3 emits red luminescence at 77 K that is inconsistent with that from [Ir(tpy)2]3+. Since the emission energies of crystalline [Ir(tpy)2]X3 (X- = Cl-, Br- or I-) show a good correlation with the electron affinity of X, the emissions are assigned to a counter anion to complex ion charge-transfer transition. This hypothesis is supported by TD-DFT calculations regarding [Ir(tpy)2]3+·X-.
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Affiliation(s)
- Wataru Ito
- Department of Materials Science, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Shingo Hattori
- Department of Materials Science, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Mio Kondo
- Department of Materials Science, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Hiroki Sakagami
- Department of Materials Science, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Osamu Kobayashi
- Department of Materials Science, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Takayoshi Ishimoto
- Department of Materials Science, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Kazuteru Shinozaki
- Department of Materials Science, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
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15
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Sakagami H, Tachikawa M, Ishimoto T. Theoretical study of the H/D isotope effect of CH 4/CD 4 adsorption on a Rh(111) surface using a combined plane wave and localized basis sets method. RSC Adv 2021; 11:10253-10257. [PMID: 35423504 PMCID: PMC8696195 DOI: 10.1039/d0ra10796d] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/01/2021] [Indexed: 12/29/2022] Open
Abstract
Using our CPLB method, we elucidate that the adsorption distance and adsorption energy of CH4 on the Rh(111) surface are shorter and larger than those of CD4, which is in reasonable agreement with the corresponding H/D isotope trend in experiments.
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Affiliation(s)
- Hiroki Sakagami
- Graduate School of Nanobioscience
- Yokohama City University
- Yokohama 236-0027
- Japan
| | - Masanori Tachikawa
- Graduate School of Data Science
- Yokohama City University
- Yokohama 236-0027
- Japan
| | - Takayoshi Ishimoto
- Graduate School of Nanobioscience
- Yokohama City University
- Yokohama 236-0027
- Japan
- Department of Applied Chemistry
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16
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Ishimoto T, Tsukada S, Wakitani S, Sato K, Saito D, Nakanishi Y, Takase S, Hamada T, Ohshita J, Kai H. Model-based research toward design of innovative materials: molecular weight prediction of bridged polysilsesquioxanes. RSC Adv 2020; 10:28595-28602. [PMID: 35520051 PMCID: PMC9055803 DOI: 10.1039/d0ra02909b] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 07/10/2020] [Indexed: 11/21/2022] Open
Abstract
Toward the design and manipulation of innovative materials, we propose a new concept called “model-based research (MBR)”. In MBR, measurable physical and chemical properties of materials are mathematically modelled by explanatory parameters obtained by computer simulation from an atomistic point of view. To demonstrate the potential of MBR, we modelled the molecular weights of a series of polysilsesquioxanes with respect to the H2O/silane molar ratio employed for the polymerization of monomers bis(triethoxysilyl)methane, ethane, ethylene, and acetylene (BTES-M, -E1, -E2, and -E3), as an example. The equation y = axn well reproduced the behaviour of the molecular weights of the BTES series, in which a and n were obtained using the calculated molecular parameters for monomers as the explanatory parameters. Detailed understanding and discussion were theoretically possible on the basis of the mathematical model. We predicted the molecular weights of polymers that would be obtained from monomers BTES-P and BTES-Ph with C3H6 and C6H4 as the spacer, respectively, using the mathematical model. Experimental validation of these polymers clearly showed the possibility of qualitative categorization. Our proposed concept, MBR, is a powerful tool to analyse materials science toward innovative materials design. Modeling and prediction of molecular weight by MBR.![]()
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Affiliation(s)
- Takayoshi Ishimoto
- Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan .,Graduate School of Nanobioscience, Yokohama City University 22-2 Seto, Kanazawa-ku Yokohama 236-0027 Japan
| | - Satoru Tsukada
- Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Shin Wakitani
- Fundamentals of Model-Based Development, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Kenji Sato
- Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Daiki Saito
- Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Yuki Nakanishi
- Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Sakino Takase
- Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Takashi Hamada
- Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan .,Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
| | - Joji Ohshita
- Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan .,Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan.,Division of Materials Model-Based Research, Digital Monozukuri (Manufacturing) Education and Research Center, Hiroshima University Higashi-Hiroshima 739-0046 Japan
| | - Hiroyuki Kai
- Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
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17
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Ishimoto T, Hayasaki T, Doke T, Mori-Kawabe M, Maruyama S. SAT-181 THE ROLES OF KETOHEXOKINASE IN RENAL SODIUM REABSORPTION AND ENDOTHELIAL FUNCTION IN MICE. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.193] [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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18
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Baba Y, Yagi T, Kosumi K, Okadome K, Nomoto D, Eto K, Hiyoshi Y, Nagai Y, Ishimoto T, Iwatsuki M, Iwagami S, Miyamoto Y, Yoshida N, Komohara Y, Watanabe M, Baba H. Morphological lymphocytic reaction, patient prognosis and PD-1 expression after surgical resection for oesophageal cancer. Br J Surg 2020; 106:1352-1361. [PMID: 31414718 DOI: 10.1002/bjs.11301] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 04/15/2019] [Accepted: 06/06/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND Immune checkpoint inhibitors, such as antibody against programmed cell death protein (PD-1), have demonstrated antitumour effects in patients with malignancies, including oesophageal cancer. A lymphocytic reaction observed by pathological examination is a manifestation of the host immune response to tumour cells. It was hypothesized that a stronger lymphocytic reaction to tumours might be associated with favourable prognosis in oesophageal cancer. METHODS Using a database of resected oesophageal cancers, four morphological components of lymphocytic reactions (peritumoral, intranest, lymphoid and stromal) to tumours were evaluated in relation to clinical outcome, PD-1 expression by immunohistochemistry and total lymphocyte count in blood. RESULTS Resected oesophageal cancer specimens from 436 patients were included in the study. Among the four morphological components, only peritumoral reaction was associated with patient prognosis (multivariable P for trend <0·001); patients with a higher peritumoral reaction had significantly longer overall survival than those with a lower reaction (multivariable hazard ratio 0·48, 95 per cent c.i. 0·34 to 0·67). The prognostic effect of peritumoral reaction was not significantly modified by other clinical variables (all P for interaction >0·050). Peritumoral reaction was associated with total lymphocyte count in the blood (P < 0·001), supporting the relationship between local immune response and systemic immune competence. In addition, higher morphological peritumoral reaction was associated with high PD-1 expression on lymphocytes in tumours (P = 0·034). CONCLUSION These findings should help to improve risk-adapted therapeutic strategies and help stratify patients in the future clinical setting of immunotherapy for oesophageal cancer.
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Affiliation(s)
- Y Baba
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan.,Department of Next-Generation Surgical Therapy Development, Graduate School of Medical Sciences, Kumamoto University, Kumumato, Japan
| | - T Yagi
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - K Kosumi
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - K Okadome
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - D Nomoto
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - K Eto
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - Y Hiyoshi
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - Y Nagai
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - T Ishimoto
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - M Iwatsuki
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - S Iwagami
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - Y Miyamoto
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - N Yoshida
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan
| | - Y Komohara
- Department of Cell Pathology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, Kumumato, Japan
| | - M Watanabe
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Kumamoto University, Kumumato, Japan.,Centre for Metabolic Regulation of Healthy Ageing, Kumamoto University, Kumumato, Japan
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19
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Baba M, Kanaoka A, Nishiyama A, Misono M, Ishimoto T, Udagawa T. Large amplitude motion in 9-methylanthracene: High-resolution spectroscopy and Ab Initio theoretical calculation. CHINESE J CHEM PHYS 2020. [DOI: 10.1063/1674-0068/cjcp1910188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Masaaki Baba
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Ayumi Kanaoka
- Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Akiko Nishiyama
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toruń, Toruń 87-100, Poland
| | - Masatoshi Misono
- Department of Applied Physics, Faculty of Science, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan
| | - Takayoshi Ishimoto
- Association of International Arts and Science Institute of Natural Science, Yokohama City University, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Taro Udagawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
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20
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Wakahara T, Nagaoka K, Nakagawa A, Hirata C, Matsushita Y, Miyazawa K, Ito O, Wada Y, Takagi M, Ishimoto T, Tachikawa M, Tsukagoshi K. One-Dimensional Fullerene/Porphyrin Cocrystals: Near-Infrared Light Sensing through Component Interactions. ACS Appl Mater Interfaces 2020; 12:2878-2883. [PMID: 31845789 DOI: 10.1021/acsami.9b18784] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Recently, organic donor-acceptor (D-A) cocrystals have attracted special interest as functional materials because of their unique chemical and physical properties that are not exhibited by simple mixtures of their components. Herein, we report the preparation of one-dimensional novel D-A cocrystals from C60 and 5,10,15,20-tetrakis(3,5-dimethoxyphenyl)porphyrin (3,5-TPP); these cocrystals have near-infrared (NIR) light-sensing abilities, despite each of their component molecule individually having no NIR light-sensing properties. Micrometer-sized rectangular columnar C60-3,5-TPP cocrystals were produced by a simple liquid-liquid interfacial precipitation method. The cocrystals exhibit a new strong transition in the NIR region indicative of the existence of charge-transfer interactions between C60 and 3,5-TPP in the cocrystals. The C60-3,5-TPP cocrystals showed n-type transport characteristics with NIR light-sensing properties when the cocrystals were incorporated in bottom-gate/bottom-contact organic phototransistors, revealing that organic cocrystals with suitable charge-transfer interaction are useful as functional materials for the creation of novel NIR-light-sensing devices.
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Affiliation(s)
- Takatsugu Wakahara
- Research Center for Functional Materials , National Institute for Materials Science , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
| | - Kahori Nagaoka
- Research Center for Functional Materials , National Institute for Materials Science , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
| | - Akari Nakagawa
- Research Center for Functional Materials , National Institute for Materials Science , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
| | - Chika Hirata
- Research Center for Functional Materials , National Institute for Materials Science , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
| | - Yoshitaka Matsushita
- Research Network and Facility Services Division , National Institute for Materials Science , 1-2-1 Sengen , Tsukuba , Ibaraki 305-0047 , Japan
| | - Kun'ichi Miyazawa
- Department of Industrial Chemistry, Faculty of Engineering , Tokyo University of Science , Tokyo 162-0826 , Japan
| | - Osamu Ito
- Research Center for Functional Materials , National Institute for Materials Science , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
- CarbonPhotoScience Institute , Kita-Nakayama2-1-6 , Izumi-ku, Sendai 981-3215 , Japan
| | - Yoshiki Wada
- Research Center for Functional Materials , National Institute for Materials Science , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
| | - Makito Takagi
- Graduate School of Nanobioscience , Yokohama City University , 22-2 Seto , Kanazawa-ku, Yokohama , Kanagawa 236-0027 , Japan
| | - Takayoshi Ishimoto
- Graduate School of Nanobioscience , Yokohama City University , 22-2 Seto , Kanazawa-ku, Yokohama , Kanagawa 236-0027 , Japan
| | - Masanori Tachikawa
- Graduate School of Nanobioscience , Yokohama City University , 22-2 Seto , Kanazawa-ku, Yokohama , Kanagawa 236-0027 , Japan
| | - Kazuhito Tsukagoshi
- International Center for Materials Nanoarchitectonics (WPI-MANA) , National Institute for Materials Science , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
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21
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Izumi D, Gao F, Chen Y, Ishimoto T, Horino K, Shimada S, Kodera Y, Baba H, Chen J, Wang X, Goel A. Identification, development and validation of a circulating miRNA-based diagnostic signature for early detection of gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz422.012] [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: 11/13/2022] Open
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22
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Takaishi M, Ishimoto T, Tokunaga M, Kokubu C, Takeda J, Sano S. 213 Ahed plays crucial roles in growth and differentiation of epidermal keratinocytes. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Tsukada S, Nakanishi Y, Kai H, Ishimoto T, Okada K, Adachi Y, Imae I, Ohshita J. NIR‐shielding films based on PEDOT‐PSS/polysiloxane and polysilsesquioxane hybrid. J Appl Polym Sci 2019. [DOI: 10.1002/app.48367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Satoru Tsukada
- Department of Materials Science Graduate School of Engineering, Chiba University, 1‐33 Yayoi‐cho, Inage‐ku Chiba 263‐8522 Japan
| | - Yuki Nakanishi
- Department of Applied Chemistry, Graduate School of Engineering Hiroshima University, 1‐4‐1 Kagamiyama, Higashi‐Hiroshima Hiroshima 739‐8527 Japan
| | - Hiroyuki Kai
- Mazda Motor Corporation, 3‐1 Shinchi, Fuchu‐cho, Aki‐gun Hiroshima 730‐8670 Japan
| | - Takayoshi Ishimoto
- Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering Hiroshima University, 1‐4‐1 Kagamiyama, Higashi‐Hiroshima Hiroshima 739‐8527 Japan
- Quantum Chemistry Division, Graduate School of Science Yokohama City University, 22‐2 Seto, Kanazawa‐ku, Yokohama Kanagawa 236‐0027 Japan
| | - Kenta Okada
- Advanced Materials Laboratory, Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering Hiroshima University, 1‐4‐1 Kagamiyama, Higashi‐Hiroshima Hiroshima 739‐8527 Japan
| | - Yohei Adachi
- Department of Applied Chemistry, Graduate School of Engineering Hiroshima University, 1‐4‐1 Kagamiyama, Higashi‐Hiroshima Hiroshima 739‐8527 Japan
| | - Ichiro Imae
- Department of Applied Chemistry, Graduate School of Engineering Hiroshima University, 1‐4‐1 Kagamiyama, Higashi‐Hiroshima Hiroshima 739‐8527 Japan
| | - Joji Ohshita
- Department of Applied Chemistry, Graduate School of Engineering Hiroshima University, 1‐4‐1 Kagamiyama, Higashi‐Hiroshima Hiroshima 739‐8527 Japan
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24
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Liu SS, Saha LC, Iskandarov A, Ishimoto T, Yamamoto T, Umeno Y, Matsumura S, Koyama M. Atomic structure observations and reaction dynamics simulations on triple phase boundaries in solid-oxide fuel cells. Commun Chem 2019. [DOI: 10.1038/s42004-019-0148-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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25
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Yoshida N, Baba Y, Kuroda D, Miyamoto Y, Iwatsuki M, Hiyoshi Y, Ishimoto T, Sawayama H, Imamura Y, Watanabe M, Baba H. Clinical utility of exhaled carbon monoxide in assessing preoperative smoking status and risks of postoperative morbidity after esophagectomy. Dis Esophagus 2018; 31:5035740. [PMID: 29893796 DOI: 10.1093/dote/doy024] [Citation(s) in RCA: 6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Whereas smoking constitutes a significant risk factor for postesophagectomy morbidity, there is no reliable method to assess the smoking status of patients prior to the procedure. Since exhaled carbon monoxide (CO) is an indicator of recent smoking, this paper hypothesizes that this is a useful parameter in assessing current smoking status and may help predict morbidity following esophagectomy. Sixty-nine patients, who had undergone elective three-incision esophagectomy with two- or three-field lymphadenectomy for esophageal cancer, were prospectively studied between February 2015 and September 2017. At surgical admission, they were asked about their smoking history, their exhaled CO levels were evaluated, and they were grouped into three based on their CO levels. These were 0 parts per million (ppm), >0 and <7 ppm, and ≥7 ppm. Their postoperative morbidity was also assessed. Approximately 13.5% of the patients showed high levels of exhaled CO ≥ 7 ppm, despite preoperatively reporting smoking cessation for over a month. Morbidities of the Clavien-Dindo classification (CDc) ≥ II increased as exhaled CO levels increased and severe morbidity of CDc ≥ IIIb frequently was observed in patients with exhaled CO levels ≥7 ppm. The logistic regression analysis showed that exhaled CO level ≥7 ppm was an independent risk factor for severe postesophagectomy morbidity. Overall, the results of this study suggest that exhaled CO levels may be useful in estimating current smoking status and that it may also help give an estimation of the risk of postesophagectomy morbidity.
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Affiliation(s)
- N Yoshida
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
| | - Y Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
| | - D Kuroda
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
| | - Y Miyamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
| | - M Iwatsuki
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
| | - Y Hiyoshi
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
| | - T Ishimoto
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
| | - H Sawayama
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
| | - Y Imamura
- Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan
| | - M Watanabe
- Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Chuoku, Kumamoto, and
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26
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Dekura S, Kobayashi H, Ikeda R, Maesato M, Yoshino H, Ohba M, Ishimoto T, Kawaguchi S, Kubota Y, Yoshioka S, Matsumura S, Sugiyama T, Kitagawa H. The Electronic State of Hydrogen in the α Phase of the Hydrogen-Storage Material PdH(D) x : Does a Chemical Bond Between Palladium and Hydrogen Exist? Angew Chem Int Ed Engl 2018; 57:9823-9827. [PMID: 29896769 DOI: 10.1002/anie.201805753] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 11/06/2022]
Abstract
The palladium-hydrogen system is one of the most famous hydrogen-storage systems. Although there has been much research on β-phase PdH(D)x , we comprehensively investigated the nature of the interaction between Pd and H(D) in α-phase PdH(D)x (x<0.03 at 303 K), and revealed the existence of Pd-H(D) chemical bond for the first time, by various in situ experimental techniques and first-principles theoretical calculations. The lattice expansion, magnetic susceptibility, and electrical resistivity all provide evidence. In situ solid-state 1 H and 2 H NMR spectroscopy and first-principles theoretical calculations revealed that a Pd-H(D) chemical bond exists in the α phase, but the bonding character of the Pd-H(D) bond in the α phase is quite different from that in the β phase; the nature of the Pd-H(D) bond in the α phase is a localized covalent bond whereas that in the β phase is a metallic bond.
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Affiliation(s)
- Shun Dekura
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hirokazu Kobayashi
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Honcho 4-1-8, Kawaguchi, Saitama, 332-0012, Japan
| | - Ryuichi Ikeda
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Mitsuhiko Maesato
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Haruka Yoshino
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Masaaki Ohba
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takayoshi Ishimoto
- Institute of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan.,Current address: Quantum Chemistry Division, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, 236-0027, Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Yoshiki Kubota
- Department of Physical Science, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Satoru Yoshioka
- Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Syo Matsumura
- Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,The Ultramicroscopy Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takeharu Sugiyama
- Research Center for Synchrotron Light Applications, Kyushu University, 6-1, Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
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27
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Dekura S, Kobayashi H, Ikeda R, Maesato M, Yoshino H, Ohba M, Ishimoto T, Kawaguchi S, Kubota Y, Yoshioka S, Matsumura S, Sugiyama T, Kitagawa H. The Electronic State of Hydrogen in the α Phase of the Hydrogen‐Storage Material PdH(D)
x
: Does a Chemical Bond Between Palladium and Hydrogen Exist? Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805753] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shun Dekura
- Division of Chemistry Graduate School of Science Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan
| | - Hirokazu Kobayashi
- Division of Chemistry Graduate School of Science Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan
- Precursory Research for Embryonic Science and Technology (PRESTO) Japan Science and Technology Agency (JST) Honcho 4-1-8 Kawaguchi Saitama 332-0012 Japan
| | - Ryuichi Ikeda
- Division of Chemistry Graduate School of Science Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan
| | - Mitsuhiko Maesato
- Division of Chemistry Graduate School of Science Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan
| | - Haruka Yoshino
- Department of Chemistry Graduate School of Science Kyushu University 744 Motooka Nishi-ku Fukuoka 819-0395 Japan
| | - Masaaki Ohba
- Department of Chemistry Graduate School of Science Kyushu University 744 Motooka Nishi-ku Fukuoka 819-0395 Japan
| | - Takayoshi Ishimoto
- Institute of Engineering Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima, Hiroshima 739-8527 Japan
- Current address: Quantum Chemistry Division, Graduate School of Nanobioscience Yokohama City University 22-2 Seto, Kanazawa-ku Yokohama 236-0027 Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI) SPring-8 1-1-1 Kouto Sayo-cho Sayo-gun, Hyogo 679-5198 Japan
| | - Yoshiki Kubota
- Department of Physical Science Graduate School of Science Osaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Satoru Yoshioka
- Department of Applied Quantum Physics and Nuclear Engineering Graduate School of Engineering Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
| | - Syo Matsumura
- Department of Applied Quantum Physics and Nuclear Engineering Graduate School of Engineering Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
- The Ultramicroscopy Research Center Kyushu University Motooka 744 Nishi-ku Fukuoka 819-0395 Japan
| | - Takeharu Sugiyama
- Research Center for Synchrotron Light Applications Kyushu University 6-1, Kasuga-koen, Kasuga Fukuoka 816-8580 Japan
| | - Hiroshi Kitagawa
- Division of Chemistry Graduate School of Science Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan
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28
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Kosumi K, Yoshida N, Okadome K, Eto T, Kuroda D, Ohuchi M, Kiyozumi Y, Nakamura K, Izumi D, Tokunaga R, Harada K, Mima K, Sawayama H, Ishimoto T, Iwatsuki M, Baba Y, Miyamoto Y, Watanabe M, Baba H. Minimally invasive esophagectomy may contribute to long-term respiratory function after esophagectomy for esophageal cancer. Dis Esophagus 2018; 31:4850445. [PMID: 29444214 DOI: 10.1093/dote/dox153] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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] [Received: 08/29/2017] [Accepted: 12/01/2017] [Indexed: 12/11/2022]
Abstract
Evidence suggests that minimally invasive esophagectomy has several advantages with regard to short-term outcomes, compared to open esophagectomy in esophageal cancer patients. However, the impact of minimally invasive esophagectomy on long-term respiratory function remains unknown. The objective of this study is to assess the association between use of the minimally invasive esophagectomy and long-term respiratory dysfunction in esophageal cancer patients after esophagectomy. This retrospective single institution study using prospectively collected data included 87 consecutive esophageal cancer patients who had undergone esophagectomy. All patients underwent a respiratory function test before, and one year after esophagectomy. Logistic regression analysis was used to compute the hazard ratio for long-term respiratory dysfunction. Minimally invasive esophagectomies were performed in 53 patients, and open esophagectomies in 34 patients. The two groups showed no significant differences in terms of postoperative complications and postoperative course. Nor were any differences observed between the two groups in terms of volume capacity (L) and forced expiratory volume 1.0 (L) before esophagectomy (P > 0.34). However, one year after esophagectomy, the decreases in volume capacity and forced expiratory volume 1.0 were significantly less in the minimally invasive esophagectomy group than in the open esophagectomy group (P = 0.04 and P = 0.007, respectively). Multivariate analyses revealed that minimally invasive esophagectomy was an independent favorable factor for maintenance of forced expiratory volume 1.0 (hazard ratio = 0.17, 95% confidence interval 0.04-0.71; P = 0.01). Minimally invasive esophagectomy may be an independent favorable factor for maintenance of long-term respiratory function in esophageal cancer patients after esophagectomy.
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Affiliation(s)
- K Kosumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto.,Department of Oncologic Pathology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
| | - N Yoshida
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Okadome
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - T Eto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - D Kuroda
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - M Ohuchi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Kiyozumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Nakamura
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - D Izumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - R Tokunaga
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Harada
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Mima
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - H Sawayama
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - T Ishimoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - M Iwatsuki
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Miyamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - M Watanabe
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
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29
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Ishimoto T, Takaishi M, Tokunaga M, Kokubu C, Takeda J, Sano S. 645 Ahed plays crucial roles in homeostatic maintenance of epidermis. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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30
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Harada K, Yoshida N, Baba Y, Nakamura K, Kosumi K, Ishimoto T, Iwatsuki M, Miyamoto Y, Sakamoto Y, Ajani JA, Watanabe M, Baba H. Pyloroplasty may reduce weight loss 1 year after esophagectomy. Dis Esophagus 2018; 31:4944973. [PMID: 29579257 DOI: 10.1093/dote/dox127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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] [Received: 09/13/2017] [Accepted: 09/19/2017] [Indexed: 12/11/2022]
Abstract
Weight loss after esophagectomy is common and is associated with unfavorable prognosis. However, the clinical features and surgical methods that influence postesophagectomy weight loss are not well characterized. This study aims to determine those features (especially the surgical methods) that may affect postoperative weight loss. We reviewed 221 esophageal cancer patients who had undergone esophagectomy at Kumamoto University Hospital (Kumamoto, Japan) between November 2012 and June 2015. Among these, we recruited 106 patients who had undergone transthoracic esophagectomy with gastric conduit reconstruction, had no cancer recurrence within 1 year, and no missing follow-up data. We tabulated the body weight changes and risk factors associated with weight loss exceeding 10% at 1-year postesophagectomy. The mean body weights at baseline and 1-year postsurgery were 60.3 kg (standard error (SE): 0.91) and 52.6 (SE: 0.91), respectively. One year postsurgery, the body weights had changed as follows: mean: -12.2%; median: -12.9%; standard deviation: 9.06; range: -36.1-18.56%; interquartile range: -10.5 to -14.0%. In the multivariate logistic regression analysis, the absence of pyloroplasty was the sole risk factor for more than 10% weight loss (OR: 3.22; 95% CI: 1.08-11.9; P = 0.036). Our data suggest that pyloroplasty with esophagectomy can overcome the post-surgical weight loss.
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Affiliation(s)
- K Harada
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto.,Department of Gastrointestinal Medical Oncology at the University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA
| | - N Yoshida
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Nakamura
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Kosumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - T Ishimoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - M Iwatsuki
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Miyamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Sakamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - J A Ajani
- Department of Gastrointestinal Medical Oncology at the University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA
| | - M Watanabe
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
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31
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Abstract
To understand the enhanced effects and new hydrogen absorption properties of metal nanoparticles, we theoretically investigated the hydrogen absorption in Pd nanoparticles, adopting the Pd405 model of ca. 2.5 nm by using density functional theory. Pd405 showed inhomogeneous geometric features, especially near the surface region. The hydrogen absorptions in octahedral (O) and tetrahedral (T) sites near the core region were stable and unstable, respectively, similar to the Pd bulk. We clearly demonstrated the possibility of hydrogen absorption in T sites near the surface of Pd405. The flexible volume change and the difference in hydrogen position relative to the center of mass of the T site that we observed are important factors for stable hydrogen absorption in T sites of Pd nanoparticles. In addition, we discuss the differences in hydrogen diffusion mechanisms in the core and near surface regions, based on the stability of hydrogen absorption in O and T sites.
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Affiliation(s)
- Takayoshi Ishimoto
- Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Michihisa Koyama
- INAMORI Frontier Research Center, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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32
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Kosumi K, Baba Y, Yamashita K, Ishimoto T, Nakamura K, Ohuchi M, Kiyozumi Y, Izumi D, Tokunaga R, Harada K, Shigaki H, Kurashige J, Iwatsuki M, Sakamoto Y, Yoshida N, Watanabe M, Baba H. Monitoring sputum culture in resected esophageal cancer patients with preoperative treatment. Dis Esophagus 2017; 30:1-9. [PMID: 28881886 DOI: 10.1093/dote/dox092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Indexed: 12/11/2022]
Abstract
Pneumonia is a major cause of postesophagectomy mortality and worsens the long-term survival in resected esophageal cancer patients. Moreover, preoperative treatments such as chemotherapy or chemoradiotherapy (which have recently been applied worldwide) might affect the bacterial flora of the sputum. To investigate the association among preoperative treatments, the bacterial flora of sputum, and the clinical and pathological features in resected esophageal cancer patients, this study newly investigates the effect of preoperative treatments on the bacterial flora of sputum. We investigated the association among preoperative treatments, the bacterial flora of sputum, and clinical and pathological features in 163 resected esophageal cancer patients within a single institution. Pathogenic bacteria such as Candida (14.1%), Staphylococcus aureus (6.7%), Enterobacter cloacae (6.1%), Haemophilus parainfluenzae (4.9%), Klebisiella pneumoniae (3.7%), Methicillin-resistant Staphylococcus aureus (MRSA) (3.7%), Pseudomonas aeruginosa (2.5%), Escherichia coli (1.8%), Streptococcus pneumoniae (1.8%), and Haemophilus influenzae (1.2%) were found in the sputum. The pathogen detection rate in the present study was 34.3% (56/163). In patients with preoperative chemotherapy and chemoradiotherapy, the indigenous Neisseria and Streptococcus species were significantly decreased (P= 0.04 and P= 0.04). However, the detection rates of pathogenic bacteria were not associated with preoperative treatments (all P> 0.07). There was not a significant difference of hospital stay between the sputum-monitored patients and unmonitored patients (35.5 vs. 49.9 days; P= 0.08). Patients undergoing preoperative treatments exhibited a significant decrease of indigenous bacteria, indicating that the treatment altered the bacterial flora of their sputum. This finding needs to be confirmed in large-scale independent studies or well-designed multicenter studies.
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Affiliation(s)
- K Kosumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Yamashita
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - T Ishimoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Nakamura
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - M Ohuchi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Kiyozumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - D Izumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - R Tokunaga
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - K Harada
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - H Shigaki
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - J Kurashige
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - M Iwatsuki
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - Y Sakamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - N Yoshida
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
| | - M Watanabe
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto
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33
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Yagi K, Yamamoto H, Uemura R, Matsuda Y, Okuyama K, Ishimoto T, Nakano T, Hayashi M. Use of PIXE/PIGE for sequential Ca and F measurements in root carious model. Sci Rep 2017; 7:13450. [PMID: 29044178 PMCID: PMC5647451 DOI: 10.1038/s41598-017-14041-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 06/23/2017] [Accepted: 10/03/2017] [Indexed: 12/02/2022] Open
Abstract
The progress of caries has conventionally been evaluated by checking changes in mineral density using transverse microradiography (TMR). Recent advances have seen development of a new measurement system, using in-air micro proton induced X-ray/gamma-ray emission (PIXE/PIGE). PIXE/PIGE enables analysis of distributions and concentrations of multiple mineral elements in a carious lesion. The aim of this study was to evaluate the effectiveness of PIXE/PIGE for investigating the development of root caries. In summary, we successfully established a multi-elemental sequential measuring method using in-air micro-PIXE/PIGE to identify the dynamic distributions and concentrations of Ca and F in human root dentin. The PIXE/PIGE potentially offers a useful advantageous technique for studying carious development by using as a combination with conventional techniques such as TMR and Micro-computed tomography (µCT).
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Affiliation(s)
- K Yagi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - H Yamamoto
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - R Uemura
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Y Matsuda
- Division of Clinical Cariology and Endodontology, Health Sciences University of Hokkaido Graduate School of Dentistry, Hokkaido, Japan
| | - K Okuyama
- Department of Dental Materials Sciences, Asahi University School of Dentistry, Gifu, Japan
| | - T Ishimoto
- Division of Materials and Manufacturing Science, Osaka University Graduate School of Engineering, Osaka, Japan
| | - T Nakano
- Division of Materials and Manufacturing Science, Osaka University Graduate School of Engineering, Osaka, Japan
| | - M Hayashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan.
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34
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Mitsueda-Ono T, Kitagawa T, Gotou M, Suzuki H, Ishimoto T, Matsui M. An initial experience of add-on therapy using perampanel for adult patients with refractory epilepsy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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35
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Ishimoto T, Kataoka S, Shiga T, Takaishi M, Sano S. 572 Intralesional blood, an easy-to-access tool for determination of diffusible mediators by skin lesions. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Nakajima K, Ishimoto T, Uchida Y, Sano S. 848 Cold-sensing ameliorated ichthyosis in a patient with Dorfman-Chanarin syndrome. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.874] [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: 10/19/2022]
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37
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Ishimoto T, Miyake K, Nandi T, Yashiro M, Huang K, Arima K, Izumi D, Baba Y, Baba H, Tan P. 21P Identification of the novel molecules mediating gastric cancer invasion based on genomic analysis of cancer-associated fibroblasts. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00183-6] [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: 10/22/2022] Open
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38
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Arima K, Ishimoto T, Ohmuraya M, Okabe H, Kitano Y, Yamamura K, Kaida T, Nakagawa S, Imai K, Hashimoto D, Chikamoto A, Yamashita YI, Baba H. 20P Verification of mechanism that CSC markers are implicated in poor prognosis for pancreatic ductal adenocarcinoma. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw573.019] [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: 11/14/2022] Open
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39
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Ishimoto T, Miyake K, Nandi T, Yashiro M, Huang K, Arima K, Izumi D, Baba Y, Baba H, Tan P. 21P Identification of the novel molecules mediating gastric cancer invasion based on genomic analysis of cancer-associated fibroblasts. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw573.020] [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: 11/13/2022] Open
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40
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Arima K, Ishimoto T, Ohmuraya M, Okabe H, Kitano Y, Yamamura K, Kaida T, Nakagawa S, Imai K, Hashimoto D, Chikamoto A, Yamashita YI, Baba H. 20P Verification of mechanism that CSC markers are implicated in poor prognosis for pancreatic ductal adenocarcinoma. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00182-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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41
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Harada K, Ida S, Baba Y, Ishimoto T, Kosumi K, Tokunaga R, Izumi D, Ohuchi M, Nakamura K, Kiyozumi Y, Imamura Y, Iwatsuki M, Iwagami S, Miyamoto Y, Sakamoto Y, Yoshida N, Watanabe M, Baba H. Prognostic and clinical impact of sarcopenia in esophageal squamous cell carcinoma. Dis Esophagus 2016; 29:627-33. [PMID: 26123787 DOI: 10.1111/dote.12381] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recently, depletion of skeletal muscle mass (sarcopenia) has been linked to poor prognosis in several types of cancers, but has not been investigated in esophageal squamous cell carcinoma (ESCC). This retrospective study investigates the relationship between sarcopenia and clinical outcome in ESCC patients treated by surgical resection or definitive chemoradiation therapy (dCRT). The study was retrospectively conducted in a single academic hospital in Kumamoto, Japan, and involved 325 ESCC patients (256 surgical cases and 69 dCRT cases) treated between April 2005 and April 2011. Skeletal muscle mass was quantified by radiologic measures using standard computed tomography scans. The skeletal muscle tissue in the 325 ESCC patients was distributed as follows: mean: 47.10; median: 46.88; standard deviation (SD): 7.39; range: 31.48-71.11; interquartile range, 46.29-47.90. Skeletal muscle tissue was greater in male patients than in female patients (P < 0.0001), but was independent of other clinical and tumor features. Sarcopenia was not significantly associated with overall survival (log rank P = 0.54). Lymph node involvement significantly altered the relationship between sarcopenia and survival rate (P for interaction = 0.026). Sarcopenia significantly reduced the overall survival of patients without lymph node involvement (log rank P = 0.035), but was uncorrelated with overall survival in patients with lymph involvement (log rank, P = 0.31). The anastomosis leakage rate was significantly higher in the sarcopenia group than in the non-sarcopenia group (P = 0.032), but other surgical complications did not significantly differ between the two groups. Sarcopenia in ESCC patients without lymph node involvement is associated with poor prognosis, indicating sarcopenia as a potential biomarker for identifying patients likely to experience an inferior outcome. Moreover, sarcopenia was associated with anastomosis leakage but no other short-term surgical outcome.
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Affiliation(s)
- K Harada
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - S Ida
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan.,Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Y Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - T Ishimoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - K Kosumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - R Tokunaga
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - D Izumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - M Ohuchi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - K Nakamura
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Y Kiyozumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Y Imamura
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - M Iwatsuki
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - S Iwagami
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Y Miyamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Y Sakamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - N Yoshida
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - M Watanabe
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
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Sato K, Tomonaga H, Yamamoto T, Matsumura S, Zulkifli NDB, Ishimoto T, Koyama M, Kusada K, Kobayashi H, Kitagawa H, Nagaoka K. A Synthetic Pseudo-Rh: NOx Reduction Activity and Electronic Structure of Pd-Ru Solid-solution Alloy Nanoparticles. Sci Rep 2016; 6:28265. [PMID: 27340099 PMCID: PMC4919684 DOI: 10.1038/srep28265] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/02/2016] [Indexed: 01/04/2023] Open
Abstract
Rh is one of the most important noble metals for industrial applications. A major fraction of Rh is used as a catalyst for emission control in automotive catalytic converters because of its unparalleled activity toward NOx reduction. However, Rh is a rare and extremely expensive element; thus, the development of Rh alternative composed of abundant elements is desirable. Pd and Ru are located at the right and left of Rh in the periodic table, respectively, nevertheless this combination of elements is immiscible in the bulk state. Here, we report a Pd–Ru solid-solution-alloy nanoparticle (PdxRu1-x NP) catalyst exhibiting better NOx reduction activity than Rh. Theoretical calculations show that the electronic structure of Pd0.5Ru0.5 is similar to that of Rh, indicating that Pd0.5Ru0.5 can be regarded as a pseudo-Rh. Pd0.5Ru0.5 exhibits better activity than natural Rh, which implies promising applications not only for exhaust-gas cleaning but also for various chemical reactions.
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Affiliation(s)
- Katsutoshi Sato
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.,Department of Applied Chemistry, Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
| | - Hiroyuki Tomonaga
- Department of Applied Chemistry, Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
| | - Tomokazu Yamamoto
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Syo Matsumura
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.,INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Nor Diana Binti Zulkifli
- Department of Hydrogen Energy Systems, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takayoshi Ishimoto
- INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Michihisa Koyama
- INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,Department of Hydrogen Energy Systems, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hirokazu Kobayashi
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hiroshi Kitagawa
- INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Katsutoshi Nagaoka
- Department of Applied Chemistry, Faculty of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
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Abstract
To understand the origin of the physicochemical nature of bimetallic PdPt nanoparticles, we theoretically investigated the phase stability and electronic structure employing the PdPt nanoparticles models consisting of 711 atoms (ca. 3 nm). For the Pd-Pt core-shell nanoparticle, the PdPt solid-solution phase was found to be a thermodynamically stable phase in the nanoparticle as the result of difference in surface energy of Pd and Pt nanoparticles and configurational entropy effect, while it is well known that the Pd and Pt are the immiscible combination in the bulk phase. The electronic structure of nanoparticles is conducted to find that the electron transfer occurs locally within surface and subsurface layers. In addition, the electron transfer from Pd to Pt at the interfacial layers in core-shell nanoparticles is observed, which leads to unique geometrical and electronic structure changes. Our results show a clue for the tunability of the electronic structure of nanoparticles by controlling the arrangement in the nanoparticles.
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Affiliation(s)
- Takayoshi Ishimoto
- INAMORI Frontier Research Center, Kyushu University , 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Michihisa Koyama
- INAMORI Frontier Research Center, Kyushu University , 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research, Kyushu University , 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Baba Y, Ishimoto T, Shigaki H, Kurashige J, Iwatsuki M, Sakamoto Y, Yoshida N, Baba H. 189P Neadjuvant DCF therapy, metabolic response and molecular biomarkers in esophageal squamous cell carcinoma. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.50] [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: 11/13/2022] Open
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Watanabe M, Baba Y, Yoshida N, Ishimoto T, Sakaguchi H, Kawasuji M, Baba H. Modified gastric pull-up reconstructions following pharyngolaryngectomy with total esophagectomy. Dis Esophagus 2014; 27:255-61. [PMID: 23672461 DOI: 10.1111/dote.12086] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Reconstruction following pharyngolaryngectomy with total esophagectomy is a challenging surgery to perform. Between April 2008 and August 2012, three types of modified gastric pull-up reconstruction procedures, including a gastric tube creation combined with a free jejunal transfer (n = 7), elongated gastric tube creation with vascular anastomoses (n = 2) and pedunculated gastric tube creation with Roux-en-Y anastomosis (n = 5), were performed after pharyngolaryngectomy with total esophagectomy. To clarify feasibility of these reconstructive methods, we retrospectively analyzed the short-term outcomes. There were no graft failures. Salivary fistulae were observed in two cases after high pharyngoenteral anastomoses due to oropharyngeal extension of hypopharyngeal cancers. Overall morbidity rate was 21.4%, and no deaths occurred. Although the operation time was shortest for pedunculated gastric tube reconstructions, morbidity rates were similar among all methods. All three types of modified gastric pull-up reconstruction procedures can be performed safely. We can choose one of these methods according to the tumor status and the patient condition, understanding advantages and disadvantages of each procedure.
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Affiliation(s)
- M Watanabe
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto, Japan
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46
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Maeda-Hori M, Kosugi T, Kojima H, Sato W, Inaba S, Maeda K, Nagaya H, Sato Y, Ishimoto T, Ozaki T, Tsuboi N, Muro Y, Yuzawa Y, Imai E, Johnson RJ, Matsuo S, Kadomatsu K, Maruyama S. Plasma CD147 reflects histological features in patients with lupus nephritis. Lupus 2014; 23:342-52. [PMID: 24474704 DOI: 10.1177/0961203314520840] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE A glycosylated transmembrane protein, CD147, has been implicated in regulating lymphocyte responsiveness and leukocyte recruitment. As lupus nephritis (LN) often follows a relapsing-remitting disease course, accurate understanding of the disease activity would be extremely helpful in improving prognosis. Unfortunately, neither clinical nor serological data can accurately reflect the histological features of LN. The present study investigated whether CD147 can accurately predict pathological features of LN. METHODS Plasma and spot urine samples were collected from 64 patients who underwent renal biopsy between 2008 and 2011. Disease activity for LN tissues was evaluated using the biopsy activity index, and compared to levels of biomarkers including CD147. RESULTS In LN tissues, CD147 induction was striking in injured glomeruli and infiltrating inflammatory cells, but not in damaged tubules representing atrophy. Plasma CD147 levels accurately reflected the histological disease activity. However, prediction using a single molecule would be quite difficult because of the complex pathogenesis of LN. The diagnostic accuracy of multiplex parameters indicated that the combination including plasma CD147 might yield excellent diagnostic abilities for guiding ideal LN therapy. CONCLUSION Plasma CD147 levels might offer useful insights into disease activity as a crucial biomarker in patients with LN.
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Affiliation(s)
- M Maeda-Hori
- 1Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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47
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Ogura T, Ishimoto T, Koyama M. Density Functional Theory Study of Sulfur Poisoning on Nickel Anode in Solid Oxide Fuel Cells: Effects of Surface and Subsurface Sulfur Atoms. J Chem Eng Japan / JCEJ 2014. [DOI: 10.1252/jcej.12we249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Teppei Ogura
- INAMORI Frontier Research Center, Kyushu University
- International Institute for Carbon-Neutral Research, Kyushu University
| | | | - Michihisa Koyama
- INAMORI Frontier Research Center, Kyushu University
- International Institute for Carbon-Neutral Research, Kyushu University
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48
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Baba Y, Watanabe M, Kawanaka K, Iwagami S, Ishimoto T, Iwatsuki M, Yoshida N, Yamashita Y, Baba H. Radiofrequency ablation for pulmonary metastases from esophageal squamous cell carcinoma. Dis Esophagus 2014; 27:36-41. [PMID: 23384275 DOI: 10.1111/dote.12034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Radiofrequency ablation (RFA) is increasingly being used for the treatment of intrathoracic malignancies. Although RFA has been found to be promising in the treatment of lung metastases from some types of neoplasms, little is known concerning its clinical significance in the treatment of pulmonary metastasis from esophageal squamous cell carcinoma (ESCC). This retrospective study evaluated the feasibility, safety, and effectiveness of computed tomography-guided RFA for pulmonary metastasis from ESCC. A series of 10 ESCC patients with 17 pulmonary tumors were included. Correct placement of the ablation device into the target tumor proved to be feasible in all tumors (100%). The mean visual analog scale score, with values that ranged from 0 (no pain) to 10 (worst pain possible), was 1. This suggested that this procedure was well tolerated. No procedure-related deaths occurred. A pneumothorax needing drainage was a major complication in two patients. Local control of ablated tumor lasting for at least 1 year was achieved in 10 (83%) of 12 assessable tumors. Although locoregional recurrences developed in two tumors, these lesions could be recontrolled by repeat treatment with RFA. Three patients died of recurrent disease. The predicted 1- and 2-year overall survival rates after lung RFA were 77.8% and 62.2%, respectively. Percutaneous computed tomography-guided RFA yielded relatively high levels of local control in patients with pulmonary metastases from ESCC and was associated with an acceptable level of complications. It was concluded that a prospective study will be necessary to evaluate the effectiveness of a combination of systemic therapy and RFA for ESCC lung metastases.
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Affiliation(s)
- Y Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
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49
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Okabe H, Ishimoto T, Mima K, Nakagawa S, Hayashi H, Kuroki H, Imai K, Nitta H, Saito S, Hashimoto D, Chikamoto A, Ishiko T, Watanabe M, Nagano O, Beppu T, Saya H, Baba H. CD44s signals the acquisition of the mesenchymal phenotype required for anchorage-independent cell survival in hepatocellular carcinoma. Br J Cancer 2013; 110:958-66. [PMID: 24300972 PMCID: PMC3929866 DOI: 10.1038/bjc.2013.759] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [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: 08/10/2013] [Revised: 09/24/2013] [Accepted: 11/11/2013] [Indexed: 12/11/2022] Open
Abstract
Background: Circulating tumour cells (CTCs) have an important role in metastatic processes, but details of their basic characteristics remain elusive. We hypothesised that CD44-expressing CTCs show a mesenchymal phenotype and high potential for survival in hepatocellular carcinoma (HCC). Methods: Circulating CD44+CD90+ cells, previously shown to be tumour-initiating cells, were sorted from human blood and their genetic characteristics were compared with those of tumour cells from primary tissues. The mechanism underlying the high survival potential of CD44-expressing cells in the circulatory system was investigated in vitro. Results: CD44+CD90+ cells in the blood acquired epithelial–mesenchymal transition, and CD44 expression remarkably increased from the tissue to the blood. In Li7 and HLE cells, the CD44high population showed higher anoikis resistance and sphere-forming ability than did the CD44low population. This difference was found to be attributed to the upregulation of Twist1 and Akt signal in the CD44high population. Twist1 knockdown showed remarkable reduction in anoikis resistance, sphere formation, and Akt signal in HLE cells. In addition, mesenchymal markers and CD44s expression were downregulated in the Twist1 knockdown. Conclusions: CD44s symbolises the acquisition of a mesenchymal phenotype regulating anchorage-independent capacity. CD44s-expressing tumour cells in peripheral blood are clinically important therapeutic targets in HCC.
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Affiliation(s)
- H Okabe
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - T Ishimoto
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - K Mima
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - S Nakagawa
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - H Hayashi
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - H Kuroki
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - K Imai
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - H Nitta
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - S Saito
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - D Hashimoto
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - A Chikamoto
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - T Ishiko
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - M Watanabe
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
| | - O Nagano
- Division of Gene Regulation, Institute for Advanced Medical Research, School of Medicine, Keio University, Minato, Japan
| | - T Beppu
- 1] Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan [2] Department of Multidisciplinary Treatment for Gastroenterological Cancer, Kumamoto University Hospital, Kumamoto 860-8556, Japan
| | - H Saya
- Division of Gene Regulation, Institute for Advanced Medical Research, School of Medicine, Keio University, Minato, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
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50
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Sakamoto Y, Miyamoto Y, Ozaki N, Ishimoto T, Iwatsuki M, Iwagami S, Baba Y, Yoshida N, Watanabe M, Baba H. The Utility of MGPS in the Prognostic Factor of the Patients with Unresectable Colorectal Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.104] [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: 11/14/2022] Open
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