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Mori H, Nakazato R, Tachibana H, Shimada T, Ishida T, Ryo M, Hasegawa E, Takagi S. Fluorescence enhancement of benzimidazolium derivative on clay nanosheets by surface-fixation induced emission (S-FIE). Photochem Photobiol Sci 2024:10.1007/s43630-024-00576-9. [PMID: 38679645 DOI: 10.1007/s43630-024-00576-9] [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: 02/22/2024] [Accepted: 04/10/2024] [Indexed: 05/01/2024]
Abstract
The photophysical behaviors of benzimidazolium derivative [4-(1,3-dimethylbenzimidazol-3-imu-2-yl)-N, N-diphenylaniline (2-(4-(diphenylamino)phenyl)-1,3-dimethyl-1H-benzo[d]imidazol-3-ium)] (BID) in water, organic solvents and on synthetic saponite were investigated. The fluorescence quantum yield (Φf) of BID was 0.91 on the saponite surface under the optimal condition, while that in water was 0.010. Such fluorescence enhancement on the inorganic surface is called "surface-fixation induced emission (S-FIE)". This fluorescence enhancement ratio for BID is significantly high compared to that of conventional S-FIE active dyes. From the values of Φf and the excited lifetime, the non-radiative deactivation rate constant (knr) and radiative deactivation rate constant (kf) of BID on the saponite surface and in water were determined. Results showed that the factors for fluorescence enhancement were both the increase of kf and the decrease of knr on the saponite surface; especially, knr decreased by more than two orders due to the effect of nanosheets.
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Affiliation(s)
- Hakan Mori
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan
| | - Ryosuke Nakazato
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-Ku, Tokyo, 152-8550, Japan
| | - Hiroshi Tachibana
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji-Shi, Tokyo, 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji-Shi, Tokyo, 192-0397, Japan
| | - Miyajima Ryo
- Department of Chemistry, Faculty of Science, Niigata University, Niigata, 950-2181, Japan
| | - Eietsu Hasegawa
- Department of Chemistry, Faculty of Science, Niigata University, Niigata, 950-2181, Japan.
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan.
- Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji-Shi, Tokyo, 192-0397, Japan.
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Nishida N, Arakawa K, Shimada T, Takagi S. Monolayer Modification of Spherical Amorphous Silica by Clay Nanosheets. Langmuir 2024; 40:6595-6600. [PMID: 38372227 DOI: 10.1021/acs.langmuir.3c03494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Clay-silica nanocomposite materials (CSiN) were prepared by an electrostatic interaction between negatively charged clay nanosheets and positively charged spherical silica, which was modified with an alkyl ammonium group by silane coupling. By optimization of the preparation conditions, 84% coverage of the silica surface by the clay nanosheets was achieved. Adsorption experiments using cationic porphyrin dyes on the CSiN revealed that the clay nanosheet covers the spherical silica as a single layer and does not detach from the silica surface under aqueous conditions. In addition, it turned out that the cationic porphyrin dye did not penetrate the space between the silica surface and the clay nanosheet. Porphyrin molecules were adsorbed only at the outer surface of the clay nanosheet without molecular aggregation even under the high-density adsorption conditions. By combining spherical silica and clay nanosheets, it is possible to prepare novel hybrid materials where the surface can act as a unique adsorption field for dyes.
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Affiliation(s)
- Nanako Nishida
- Department of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Minami-ohsawa 1-1, Hachiohji, Tokyo 192-0397, Japan
| | - Kyosuke Arakawa
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, Noda-shi, Yamazaki 278-8510, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Minami-ohsawa 1-1, Hachiohji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Minami-ohsawa 1-1, Hachiohji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
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Arakawa K, Shimada T, Ishida T, Sato K, Takagi S. Structural Transformation of Azonia[5]helicene Photoproduct via Reaction Field Function of Layered Inorganic Material. Langmuir 2024; 40:4333-4339. [PMID: 38363642 DOI: 10.1021/acs.langmuir.3c03589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
In an attempt to generalize "on surface synthesis", which has unique potential in the area of organic synthesis, the focus was placed on layered silicates having a highly flat surface. The photoreaction of (±)-13-bromo-6a-azonia[5]helicene (AHHBr) and (±)-2-bromo-13-methyl-6a-azonia[5]helicene (AHBrMe) in solution and within the layers was examined. In the case of AHBrMe, the photoproduct was different from that in solution. 1H nuclear magnetic resonance (NMR), Fourier transform-infrared spectroscopy (FT-IR), and electrospray ionization-mass spectrometry (ESI-MS) measurements revealed that the photoproduct obtained within the layers was a benzo-perylene molecule with a completely flat lactone structure (AL). This study is the first example of the successful conversion of a chemical reaction path due to the steric effect of the flat surface of layered silicate.
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Affiliation(s)
- Kyosuke Arakawa
- Department of Applied and Pure Chemistry, Tokyo University of Science, 2641 Yamasaki, Noda-city, Chiba 278-8510, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Kiyoshi Sato
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
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Okayama K, Nakayama A, Murayama T, Sakaguchi N, Hong F, Qiao B, Wang J, Shimada T, Takagi S, Ishida T. Decoration of Gold and Platinum Nanoparticle Catalysts by 1 nm Thick Metal Oxide Overlayer and Its Effect on the CO Oxidation Activity. ACS Appl Mater Interfaces 2024; 16:4570-4580. [PMID: 38239175 DOI: 10.1021/acsami.3c14935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Exfoliated M-Al layered double hydroxide (M-Al LDH; M = Mg, Co, Ni, and Zn) nanosheets were adsorbed on Au/SiO2 and calcined to transform LDH into mixed metal oxides (MMOs) and yield Au/SiO2 coated with a thin MMO overlayer. These catalysts showed a higher catalytic activity than pristine Au/SiO2. In particular, the 50% CO conversion temperature decreased by more than 250 °C for Co-Al MMO-coated Au/SiO2. In contrast, the deposition of CoAlOx on Au/SiO2 by impregnation or the deposition of Au on Co-Al MMO-coated SiO2 resulted in a worse catalytic activity. Moreover, the presence of a thick MMO overlayer decreased the catalytic activity, suggesting that the control of the overlayer thickness to less than 1 nm is a requisite for obtaining a high catalytic activity. Moreover, the thin Co-Al MMO overlayer on Au/SiO2 possessed abundant oxygen vacancies, which would play an important role in O2 activation, resulting in a highly active interface between Au and the defect-rich MMO on the Au NP surface. Finally, this can be applied to Pt/SiO2, and the obtained Co-Al MMO-coated Pt/SiO2 also exhibited a much improved catalytic activity for CO oxidation.
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Affiliation(s)
- Kaho Okayama
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Akihiro Nakayama
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Toru Murayama
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Yantai Key Laboratory of Gold Catalysis and Engineering, Shandong Applied Research Center of Gold Nanotechnology (AU-SDARC), School of Chemistry & Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, China
| | - Norihito Sakaguchi
- Laboratory of Integrated Function Materials, Center for Advanced Research of Energy and Materials, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Feng Hong
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Botao Qiao
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Junhu Wang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- Center for Advanced Mössbauer Spectroscopy, Mössbauer Effect Data Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
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Kawai H, Omura N, Hirabayashi T, Shimada T, Kawahara H. Small Bowel Obstruction Due to Axial Torsion of Meckel's Diverticulum: A Case Report and Literature Review. Cureus 2023; 15:e50934. [PMID: 38249182 PMCID: PMC10800028 DOI: 10.7759/cureus.50934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
Meckel's diverticulum (MD) is a commonly encountered congenital gastrointestinal abnormality. Although the frequency of MD-related complications such as inflammation or bleeding is relatively high, small bowel obstruction induced by axial torsion of the MD is rare. Therefore, we herein report such a case along with a review of the literature. A 34-year-old female with right lower quadrant pain, nausea, and vomiting was admitted to our hospital with the diagnosis of adhesive small bowel obstruction due to a cesarean section performed five years previously. A long intestinal tube was placed, and the patient's clinical symptoms and X-ray findings showed relief of the small bowel obstruction. However, she developed severe right lower quadrant pain after contrast examination through the long intestinal tube despite the fact that the contrast agent had smoothly reached the terminal ileum. Blood tests and enhanced computed tomography (CT) showed a remarkable elevation of inflammatory markers, the appearance of ascites, and closed-loop-like and abscess-like appearances near the site of the caliber change. With a diagnosis of internal hernia, the patient underwent emergency laparotomy by means of a midline incision. Purulent ascites was observed within the abdominal cavity. Small bowel obstruction caused by a single band was observed in the right lower quadrant. Further exploration revealed an inflammatory MD with neck torsion and a mesodiverticular band (MDB). Simple mesodiverticular band resection by electrocautery and diverticulectomy by linear stapler were performed. The postoperative course was uneventful, and the patient was discharged on postoperative day 7. In the case of juvenile-onset small bowel obstruction, axial torsion of the MD should be considered as a differential diagnosis. Herein, we report such a difficult diagnostic case and the first English literature review of small bowel obstruction due to axial torsion of the MD.
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Affiliation(s)
- Hironari Kawai
- Surgery, Nishisaitama-Chuo National Hospital, Tokorozawa, JPN
| | - Nobuo Omura
- Surgery, Nishisaitama-Chuo National Hospital, Tokorozawa, JPN
| | | | - Tetsuya Shimada
- Pathology, Nishisaitama-Chuo National Hospital, Tokorozawa, JPN
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Shimada T, Pu X, Kutlu Yalcin E, Cohen B, Bravo M, Mascha EJ, Sessler DI, Turan A. Association between postoperative hypotension and acute kidney injury after noncardiac surgery: a historical cohort analysis. Can J Anaesth 2023; 70:1892-1900. [PMID: 37919627 DOI: 10.1007/s12630-023-02601-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/16/2023] [Accepted: 05/21/2023] [Indexed: 11/04/2023] Open
Abstract
PURPOSE The extent to which postoperative hypotension contributes to renal injury remains unclear, much less what the harm thresholds might be. We therefore tested the primary hypothesis that there is an absolute hypotensive arterial pressure threshold for acute kidney injury during the initial seven days after noncardiac surgery. METHODS We conducted a single-centre historical cohort analysis of adults who had noncardiac surgery and had creatinine recorded preoperatively and postoperatively. Our exposure was the lowest postoperative mean arterial pressure, defined as the average of the three lowest postoperative pressure measurements. Our primary analysis was the association between the lowest mean arterial pressure and acute kidney injury, defined according to Kidney Disease: Improving Global Outcomes initiative criteria. Our analysis was adjusted for potentially relevant confounding factors including intraoperative hypotension. RESULTS Among 64,349 patients analyzed, 2,812 (4.4%) patients had postoperative acute kidney injury. Each 5-mm Hg decrease in the lowest mean arterial pressure was associated with a 28% (97.5% confidence interval [CI], 23 to 32; P < 0.001) increase in the odds of acute kidney injury for lowest mean arterial pressures < 80 mm Hg. Higher lowest pressures were not associated with acute kidney injury (odds ratio, 1.08; 97.5% CI, 0.99 to 1.17; P = 0.04) for each 5-mm Hg decrease in the lowest mean arterial pressure. CONCLUSION Postoperative hypotension, defined as the lowest postoperative mean arterial pressure < 80 mm Hg, was associated with acute kidney injury after noncardiac surgery. A prospective trial will be required to determine whether the observed association is causal and thus amenable to modification.
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Affiliation(s)
- Tetsuya Shimada
- Department of Anesthesiology, National Hospital Organization, Murayama Medical Center, Musashimurayama, Tokyo, Japan
- Department of Anesthesiology, National Defense Medical College, Tokorozawa, Saitama, Japan
- Outcomes Research Consortium, Cleveland, OH, USA
| | - Xuan Pu
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - Esra Kutlu Yalcin
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA
- Department of General Anesthesiology, Cleveland Clinic, Cleveland, OH, USA
| | - Barak Cohen
- Outcomes Research Consortium, Cleveland, OH, USA
- Division of Anesthesia, Intensive Care and Pain, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Mauro Bravo
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA
- Department of General Anesthesiology, Cleveland Clinic, Cleveland, OH, USA
| | - Edward J Mascha
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - Daniel I Sessler
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA
| | - Alparslan Turan
- Department of Outcomes Research, Cleveland Clinic, Cleveland, OH, USA.
- Department of General Anesthesiology, Cleveland Clinic, Cleveland, OH, USA.
- Department of Outcomes Research, Cleveland Clinic, 9500 Euclid Ave. - L1-407, Cleveland, OH, 44195, USA.
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Taketoshi A, Gangarajula Y, Sodenaga R, Nakayama A, Okumura M, Sakaguchi N, Murayama T, Shimada T, Takagi S, Haruta M, Qiao B, Wang J, Ishida T. Gold/Substituted Hydroxyapatites for Oxidative Esterification: Control of Thin Apatite Layer on Gold Based on Strong Metal-Support Interaction (SMSI) Results in High Activity. ACS Appl Mater Interfaces 2023. [PMID: 37409773 DOI: 10.1021/acsami.3c05974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
Gold nanoparticles (Au NPs) deposited on various cation- and anion-substituted hydroxyapatites (Au/sHAPs) show oxidative strong metal-support interaction (SMSI), wherein a thin layer of the sHAP covered the surface of the Au NPs by heat treatment in an oxidative atmosphere. Calcination of Au/sHAPs at 300 °C caused a partial SMSI and that at 500 °C gave fully encapsulated Au NPs. We investigated the influence of the substituted ions in sHAP and the degree of the oxidative SMSI on the catalytic performance of Au/sHAPs for oxidative esterification of octanal or 1-octanol with ethanol to obtain ethyl octanoate. The catalytic activity depends on the size of the Au NPs but not on the support used, owing to the similarity of the acid and base properties of sHAPs except for Au/CaFAP. The presence of a large number of acidic sites on CaFAP lowered the product selectivity, but all other sHAPs exhibited similar activity when the Au particle size was almost the same, owing to the similarity of the acid and base properties. Au/sHAPs_O2 with SMSI exhibited higher catalytic activity than Au/sHAPs_H2 without SMSI despite the fact that the number of exposed surface Au atoms was decreased by the SMSI. In addition, the oxidative esterification reaction proceeded even though the Au NPs were fully covered by the sHAP layer when the thickness of the layer was controlled to be less than 1 nm. The substrate can access the surfaces of the Au NPs covered by the thin sHAP layer (<1 nm), and the presence of the sHAP structure in close contact with the Au NPs resulted in significantly higher catalytic activity compared with that for fully exposed Au NPs deposited on the sHAPs. This result suggests that maximizing the contact area between the Au NPs and the sHAP support based on the SMSI enhances the catalytic activity of Au.
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Affiliation(s)
- Ayako Taketoshi
- Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Yuvaraj Gangarajula
- Center for Advanced Mössbauer Spectroscopy, Mössbauer Effect Data Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Ryusei Sodenaga
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Akihiro Nakayama
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Mitsutaka Okumura
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
| | - Norihito Sakaguchi
- Laboratory of Integrated Function Materials, Center for Advanced Research of Energy and Materials, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Toru Murayama
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Yantai Key Laboratory of Gold Catalysis and Engineering, Shandong Applied Research Center of Gold Nanotechnology (AU-SDARC), School of Chemistry & Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, China
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Masatake Haruta
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Botao Qiao
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Junhu Wang
- Center for Advanced Mössbauer Spectroscopy, Mössbauer Effect Data Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
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Onal O, Chhabada S, Pu X, Liu L, Shimada T, Ruetzler K, Turan A. Mild acute kidney injury after pediatric surgery is not-associated with long-term renal dysfunction: A retrospective cohort study. J Clin Anesth 2022; 83:110985. [PMID: 36332365 DOI: 10.1016/j.jclinane.2022.110985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/04/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND STUDY OBJECTIVE Acute kidney injury (AKI) is a sudden deterioration in renal function and is common in pediatric patients undergoing cardiac and non-cardiac surgery. Few studies have investigated the association of postoperative AKI with kidney dysfunction seen long-term and other adverse outcomes in pediatric patients. The study aimed to determine the association between postoperative AKI (mild AKI vs. no AKI and mild AKI vs. moderate-severe AKI) and chronic kidney dysfunction (CKD) seen long-term in pediatric patients undergoing cardiac and non-cardiac major surgery. DESIGN Restrospective, cohort study. SETTING Tertiary care hospital. PATIENTS This retrospective cohort study included patients aged 2-18 years who underwent cardiac and non-cardiac major surgery lasting >2 h at the Cleveland Clinic Main Campus between June 2005 and December 2020. MEASUREMENTS Postoperative AKI and CKD seen in long-term were defined and staged according to the Kidney Disease: Improving Global Outcomes criteria. MAIN RESULTS Among 10,597 children who had cardiac and non-cardiac major surgery, 1,302 were eligible. A total of 682 patients were excluded for missing variables and baseline kidney dysfunction and 620 patients were included. The mean age was 11 years, and 307 (49.5%) were female. Postoperative mild AKI was detected in 5.8% of the patients, while moderate-severe AKI was detected in 2.4%. There was no significant difference in CKD seen in long-term between patients with and without postoperative AKI, p = 0.83. The CKD seen in long-term developed in 27.7% of patients with postoperative mild AKI and 33.3% of patients with postoperative moderate and severe AKI. Patients without postoperative AKI had an estimated 1.09 times higher odds of having CKD seen in long-term compared with patients who have postoperative mild AKI (odds ratio [95% CI] 1.09 [0.48,2.52]). CONCLUSION In contrast to adult patients, the authors did not find any association between postoperative AKI and CKD seen in long-term in pediatric patients.
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Affiliation(s)
- Ozkan Onal
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States of America; Department of Anesthesiology and Reanimation, Selcuk University Faculty of Medicine, Konya, Turkey; Outcomes Research Consortium, Cleveland, OH, United States of America
| | - Surendrasingh Chhabada
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States of America; Department of Pediatric Anesthesia and Congenital Cardiac Anesthesia, Cleveland Clinic, Cleveland, OH, United States of America; Outcomes Research Consortium, Cleveland, OH, United States of America
| | - Xuan Pu
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States of America; Department of Quantitative Health Sciences, Cleveland Clinic, OH, United States of America; Outcomes Research Consortium, Cleveland, OH, United States of America
| | - Liu Liu
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States of America; Department of Quantitative Health Sciences, Cleveland Clinic, OH, United States of America; Outcomes Research Consortium, Cleveland, OH, United States of America
| | - Tetsuya Shimada
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States of America; Department of Anesthesiology, National Hospital Organization, Murayama Medical Center, Musashimurayama, Tokyo, Japan; Department of Anesthesiology, National Defense Medical College, Tokorozawa, Saitama, Japan; Outcomes Research Consortium, Cleveland, OH, United States of America
| | - Kurt Ruetzler
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States of America; Department of General Anesthesia, Cleveland Clinic, Cleveland, OH, United States of America; Outcomes Research Consortium, Cleveland, OH, United States of America
| | - Alparslan Turan
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, United States of America; Department of General Anesthesia, Cleveland Clinic, Cleveland, OH, United States of America; Outcomes Research Consortium, Cleveland, OH, United States of America.
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Arakawa K, Shimada T, Ishida T, Takagi S. Photo-cyclization, Photo-ring opening and Thermo-ring opening Reaction of Cationic Diarylethene Adsorbed on the Clay Nanosheet Surface. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130537] [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]
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Shimada T, Higashida-Konishi M, Izumi K, Hama S, Oshige T, Oshima H, Okano Y. POS1423 CHARACTERISTICS OF CYTOMEGALOVIRUS-POSITIVE VERSUS NEGATIVE, AND CYTOMEGALOVIRUS-TREATED VERSUS UNTREATED PATIENTS DURING IMMUNOSUPPRESSIVE THERAPY FOR RHEUMATIC DISEASES. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundImmunosuppressive treatment is a common cause of cytomegalovirus (CMV) reactivation.ObjectivesTo elucidate the characteristics of CMV-positive and negative patients during the treatment for rheumatic diseases.MethodsWe retrospectively evaluated consecutive patients admitted to our department from January 2006 to October 2021 whose C7-HRP antigen were measured. We collected their age, sex, primary problem and its lesion, and test results within 3 months before C7-HRP measurement. We also investigated the use of immunosuppressants, and maximum and cumulative dose of administered prednisolone within 6 months before C7-HRP measurement. Maximum and cumulative dose of prednisolone contained methylprednisolone pulse, which was converted into prednisolone equivalent. We investigated the characteristics of CMV-positive and negative patients, and those of CMV-positive patients with or without anti-CMV drug use.ResultsOf a total of 472 patients, 85 were positive and 387 were negative for C7-HRP. The average age was 71.2 vs. 64.4 (p=0.0021). Their male-to-female ratio was 20/65 vs. 120/267 (p=0.0290). The following diseases were significantly common among CMV-positive patients: microscopic polyangiitis (21.2% vs. 3.9%, p<0.0001), adult-onset Still’s disease (7.1% vs. 1.3%, p=0.0002), and systemic sclerosis (4.7% vs. 2.1%, p=0.0273). Significantly common comorbidities of CMV-positive patients were interstitial lung disease (35.3% vs. 16.0%, p<0.0001), nephritis (23.5% vs. 11.6%, p=0.0005), peripheral nervous system disorders (11.8% vs. 5.7%, p=0.0070), alveolar hemorrhage (5.9% vs. 0.8%, p=0.0001), and peripheral circulatory disorders (4.7% vs. 1.6%, p=0.0111). Average neutrophil counts (7720 /μL vs. 6440 /μL, p=0.0001), serum creatinine (1.0 mg/dL vs. 0.9 mg/dL, p=0.0104), and hemoglobin A1c (6.3% vs. 5.7%, p=0.0030) were significantly higher among CMV-positive patients, whereas hemoglobin (10.1 g/dL vs. 11.1 g/dL, p<0.0001), lymphocyte counts (820 /μL vs. 1190 /μL, p<0.0001), platelet counts (233000 /μL vs. 259000 /μL, p<0.0001), and serum albumin (2.9 g/dL vs. 3.4 g/dL, p<0.0001) were lower. Higher maximum dose of prednisolone (534.9 mg/day vs. 135.5 mg/day, p<0.0001), intravenous cyclophosphamide (27.1% vs. 11.4%, p<0.0001), rituximab (9.4% vs. 2.1%, p<0.0001), azathioprine (23.5% vs. 14.2%, p=0.0053), cyclosporin (8.2% vs. 3.6%, p=0.0101) were significantly more often used among CMV-positive patients. Average cumulative dose of prednisolone was 3022.6 mg vs. 1408.7 mg (p<0.0001). We also performed multivariate analysis, including the patients’ age, sex, maximum and cumulative dose of prednisolone, and the use of intravenous cyclophosphamide, rituximab, azathioprine, and cyclosporin. Elderly (p=0.0006), female (p=0.0293), high cumulative dose of prednisolone (p=0.0155), and the use of cyclosporin (p=0.0479) were significantly associated with CMV-positivity. Anti-CMV drug was administered to 63.5% of CMV-positive patients. The average age was significantly higher in anti-CMV-drug-treated patients than untreated patients (73.7 vs. 67.1, p=0.0492). The CMV-treated patients had significantly higher neutrophil counts (8540 /μL vs. 6280 /μL, p<0.0001), erythrocyte sedimentation rate (57.6 mm/h vs. 40.5 mm/h, p<0.0001), and C-reactive protein (5.3 mg/dL vs. 2.6 mg/dL, p<0.0001) than the untreated patients while the other data such as complete blood counts and serum chemistry revealed no significant difference. Average maximum dose of prednisolone was significantly higher in CMV-treated patients (617.1 mg/day vs. 391.1 mg/day, p=0.0261) while average cumulative dose of prednisolone and the use of any other immunosuppressants revealed no significant difference.ConclusionIntense immunosuppression, especially with higher dose of glucocorticoids, seemed to be the major risk factor of CMV reactivation. These medications may often require anti-CMV therapy.Disclosure of InterestsNone declared
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Higashida-Konishi M, Izumi K, Shimada T, Hama S, Oshige T, Oshima H, Okano Y. AB0298 THE RISK OF SULPHA ALLERGY IN PATIENTS WITH RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundSulpha drugs have been used such as sulfasalazine for the treatment of rheumatoid arthritis (RA), and trimethoprim-sulfamethoxazole (TMP-SMX) for the treatment or prevention of pneumocystis pneumonia. However, some patients with RA delay treatment because of allergy to sulpha drugs[1]. We reported that 16.7% of RA patients presented drug allergies[2]. It was not clear what is a risk factor for drug allergies in patients with RA.ObjectivesThe aim of this study was to evaluate the clinical features with sulpha allergy in patients with RA.MethodsWe prospectively examined consecutive patients diagnosed with RA in our hospital from March 2021 to January 2022. The patients with RA met the EULAR/ACR 2010 criteria. We included patients with RA with other rheumatic diseases. A careful allergic history was obtained from patients with RA and physical examination performed.The first analysis was performed on patient baseline laboratory data at diagnosis of patients with RA with or without sulpha allergy. Sulpha allergy (rash, angioedema and anaphylaxis after drug exposure) was allergy to sulfasalazine or TMP-SMX. The second analysis was performed on seven types of allergic reactions: (1) drug allergies other than sulpha drugs (rash, angioedema and anaphylaxis after drug exposure), (2) food allergy (rash, angioedema and anaphylaxis after foods exposure), (3) allergic contact dermatitis such as metals, and other cosmetics, (4) seasonal allergic rhinitis and/or conjunctivitis (AR and/or AC), and AR and/or AC associated with house dust, (5) asthma, and (6) atopic dermatitis.ResultsThere were 513 patients with RA in our study. In the first analysis, 17 patients with sulpha allergy and 496 patients without sulpha drugs were enrolled (Table 1). The median ages (with supha allergy and without sulpha allergy) were 66.0 and 72.0 years old (p=0.40). Females were 82.3% and 77.0%(p=0.4). The median observation period was 97.0 and 69.0 months (p=0.20). Patients with other rheumatic diseases were 11.6 and 6.8% (p=0.34).Table 1.Characteristics of RA patients at diagnosis of RAWith sulpha allergy (n = 17)Without sulpha allergy (n = 496)PFemale83.4%76.9%0.77Age, year, y66.0 (56.0-78.5)72.0 (60.0-80.0)0.40Observation period, m97.0 (45.5-182.0)69.0 (31.0-123.8)0.20Patients with other rheumatic diseases11.8%6.8%0.34ANA-positive patients(>1:80)52.9%28.2%0.052Anti-SSA antibody-positive patients46.2%18.2%0.02RF-positive patients40.0%66.8%0.049The RA patients with sulpha allergy had higher positivity rate of anti-nuclear antibody (ANA) (>1:80) (52.9%, 28.2%: p=0.052), higher positivity rate of anti–Sjögren’s-syndrome-related antigen A autoantibody (anti-SSA antibody) than those without sulpha allergies (46.2%, 18.2%: p = 0.02) and lower positivity rate of rheumatoid factor(RF) than those without sulpha allergies (40.0%, 66.8%: p = 0.049).In the second analysis drug allergies other than sulpha allergy were more frequent in patients with sulpha allergy. Drug allergies other than sulpha allergy were such as antibiotics and nonsteroidal anti-inflammatory drugs. There were no significant differences in other allergies.ConclusionAmong patients with RA, patients with sulpha allergy had higher positivity rate of ANA and anti-SSA antibody, and lower positivity rate of RF than those without sulpha allergy. RA patients with sulpha allergy had a higher prevalence of the other drug allergies than those other than sulpha allergy.References[1]Konishi MH et al. Allergic diseases in adult-onset Still’s disease and rheumatoid arthtitis. Arerugi. 2021; 70: 965-975.[2]Konishi MH et al. Allergic Disorders and Drug Allergies in Primary Sjögren’s Syndrome and Rheumatoid Arthritis. EULAR 2021.Disclosure of InterestsNone declared
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Nakayama A, Sodenaga R, Gangarajula Y, Taketoshi A, Murayama T, Honma T, Sakaguchi N, Shimada T, Takagi S, Haruta M, Qiao B, Wang J, Ishida T. Enhancement effect of strong metal-support interaction (SMSI) on the catalytic activity of substituted-hydroxyapatite supported Au clusters. J Catal 2022. [DOI: 10.1016/j.jcat.2022.04.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Shimada T, Mascha EJ, Yang D, Bravo M, Rivas E, Ince I, Turan A, Sessler DI. Intra-operative hypertension and myocardial injury and/or mortality and acute kidney injury after noncardiac surgery: A retrospective cohort analysis. Eur J Anaesthesiol 2022; 39:315-323. [PMID: 35066561 DOI: 10.1097/eja.0000000000001656] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND Whether intra-operative hypertension causes postoperative complications remains unclear. OBJECTIVE We sought to assess whether there is an absolute systolic hypertensive threshold associated with increased odds of a composite of postoperative myocardial injury and mortality, and acute kidney injury. DESIGN A retrospective cohort analysis using an electronic medical record registry. SETTING The Cleveland Clinic Main Campus, Cleveland, Ohio, USA, between January 2005 and December 2018. PATIENTS A total of 76 042 adults who had inpatient noncardiac surgery lasting at least an hour, creatinine recorded preoperatively and postoperatively, and had an available clinic blood pressure within 6 months before surgery. MAIN OUTCOME MEASURES Univariable smoothing and multivariable logistic regression were used to estimate the probability of each outcome as a function of the highest intra-operative pressure for a cumulative 5, 10, or 30 min. We further assessed whether the relationships between intra-operative hypertension and each outcome depended on baseline systolic blood pressure. RESULTS The composite of myocardial injury and mortality was observed in 1.9%, and acute kidney injury in 4.5% of patients. After adjustment for confounders, there was little or no relationship between systolic pressure and either outcome over the range from 120 to 200 mmHg. There were also no obvious change points or thresholds above which odds of each outcome increased. And finally, there was no interaction with preoperative clinic blood pressure. CONCLUSIONS There was no clinically meaningful relationship between intra-operative systolic pressure and the composite of myocardial injury and mortality, or acute kidney injury, over the range from 120 and 200 mmHg.
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Affiliation(s)
- Tetsuya Shimada
- From the Departments of Outcomes Research ( TS, EJM, DY, MB, ER, II, AT, DIS) , Quantitative Health Sciences (EJM, DY), General Anesthesiology (AT), Cleveland Clinic, Cleveland, Ohio, USA, Department of Anesthesiology, National Hospital Organization, Murayama Medical Center, Musashimurayama, Tokyo, Japan (TS), Department of Anesthesiology, National Defense Medical College, Tokorozawa, Saitama, Japan (TS), Department of Anesthesia Hospital Clinic of Barcelona, IDIBAPS, Universidad de Barcelona, Barcelona, Spain (ER), Altinbas University, Bahcelievler Medical Park Hospital, Istanbul, Turkey (II)
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Hamann M, Shimada T, Duce S, Foster A, To ATY, Limpus C. Patterns of nesting behaviour and nesting success for green turtles at Raine Island, Australia. ENDANGER SPECIES RES 2022. [DOI: 10.3354/esr01175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
To understand how turtles use the nesting habitat at Raine Island across a nesting season, and how the turtles respond to the restoration of the island’s dune systems, we identified 534 nesting events for 39 green turtles Chelonia mydas across 2 breeding seasons using data derived from satellite tags. Tracked turtles laid between 4 and 10 clutches of eggs. Patterns of nesting success varied between individuals, within and between seasons. Nesting success was higher in 2018-19 (57%) than 2017-18 (45%), and in both years, nesting success was lowest between October and early January (<50%). In 2017-18, increased rainfall in January corresponded with increased nesting success (>50%). The density of female turtles ashore was lower in 2018-19, and likely explains higher nesting success in 2018-19 because competition for nest space was lower. In 2017-18, females had more attempts per clutch, and the attempts were around 90 min longer. Consequently, energy required to lay a clutch of eggs in 2017-18 was significantly higher than in 2018-19, highlighting potential costs of lower nesting success rates on reproductive output. The area of beach re-profiled as an intervention in 2014 and 2017 was a nesting hotspot in 2017-18. However, in 2018-19, the area was not used to the same extent, and the nesting hotspot occurred on the north-eastern unaltered beach. Collectively, the tracking of turtles across the whole nesting season enabled us to assess overall beach use and nesting site fidelity of green turtles at Raine Island. Results will aid future planning and management of beach restoration activities at turtle nesting sites.
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Affiliation(s)
- M Hamann
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
| | - T Shimada
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
- Queensland Department of Environment and Science, Brisbane, Qld 4102, Australia
| | - S Duce
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
| | - A Foster
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
| | - ATY To
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
| | - C Limpus
- Queensland Department of Environment and Science, Brisbane, Qld 4102, Australia
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15
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Tachibana S, Sawada H, Okazaki R, Takano Y, Sakamoto K, Miura YN, Okamoto C, Yano H, Yamanouchi S, Michel P, Zhang Y, Schwartz S, Thuillet F, Yurimoto H, Nakamura T, Noguchi T, Yabuta H, Naraoka H, Tsuchiyama A, Imae N, Kurosawa K, Nakamura AM, Ogawa K, Sugita S, Morota T, Honda R, Kameda S, Tatsumi E, Cho Y, Yoshioka K, Yokota Y, Hayakawa M, Matsuoka M, Sakatani N, Yamada M, Kouyama T, Suzuki H, Honda C, Yoshimitsu T, Kubota T, Demura H, Yada T, Nishimura M, Yogata K, Nakato A, Yoshitake M, Suzuki AI, Furuya S, Hatakeda K, Miyazaki A, Kumagai K, Okada T, Abe M, Usui T, Ireland TR, Fujimoto M, Yamada T, Arakawa M, Connolly HC, Fujii A, Hasegawa S, Hirata N, Hirata N, Hirose C, Hosoda S, Iijima Y, Ikeda H, Ishiguro M, Ishihara Y, Iwata T, Kikuchi S, Kitazato K, Lauretta DS, Libourel G, Marty B, Matsumoto K, Michikami T, Mimasu Y, Miura A, Mori O, Nakamura-Messenger K, Namiki N, Nguyen AN, Nittler LR, Noda H, Noguchi R, Ogawa N, Ono G, Ozaki M, Senshu H, Shimada T, Shimaki Y, Shirai K, Soldini S, Takahashi T, Takei Y, Takeuchi H, Tsukizaki R, Wada K, Yamamoto Y, Yoshikawa K, Yumoto K, Zolensky ME, Nakazawa S, Terui F, Tanaka S, Saiki T, Yoshikawa M, Watanabe S, Tsuda Y. Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth. Science 2022; 375:1011-1016. [PMID: 35143255 DOI: 10.1126/science.abj8624] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The Hayabusa2 spacecraft investigated the C-type (carbonaceous) asteroid (162173) Ryugu. The mission performed two landing operations to collect samples of surface and subsurface material, the latter exposed by an artificial impact. We present images of the second touchdown site, finding that ejecta from the impact crater was present at the sample location. Surface pebbles at both landing sites show morphological variations ranging from rugged to smooth, similar to Ryugu's boulders, and shapes from quasi-spherical to flattened. The samples were returned to Earth on 6 December 2020. We describe the morphology of >5 grams of returned pebbles and sand. Their diverse color, shape, and structure are consistent with the observed materials of Ryugu; we conclude that they are a representative sample of the asteroid.
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Affiliation(s)
- S Tachibana
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - Y Takano
- Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, Kanagawa 237-0061, Japan
| | - K Sakamoto
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y N Miura
- Earthquake Research Institute, The University of Tokyo, Tokyo 113-0032, Japan
| | - C Okamoto
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Yamanouchi
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - P Michel
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - Y Zhang
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - S Schwartz
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA.,Planetary Science Institute, Tucson, AZ 85719, USA
| | - F Thuillet
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - H Yurimoto
- Department of Earth and Planetary Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Noguchi
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan.,Division of Earth and Planetary Sciences, Kyoto University, Kyoto, Japan
| | - H Yabuta
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - N Imae
- Polar Science Resources Center, National Institute of Polar Research, Tokyo 190-8518, Japan
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - A M Nakamura
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - K Ogawa
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - S Sugita
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Morota
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - S Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - E Tatsumi
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, E-38205 Tenerife, Spain
| | - Y Cho
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Yoshioka
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Sakatani
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Kouyama
- Information Technology and Human Factors, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - H Suzuki
- Department of Physics, Meiji University, Kawasaki 214-8571, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Yoshimitsu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Kubota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Demura
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A I Suzuki
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan.,Department of Economics, Toyo University, Tokyo 112-8606, Japan
| | - S Furuya
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Kumagai
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T R Ireland
- School of Earth and Environmental Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - M Fujimoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H C Connolly
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA.,Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Hasegawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - C Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Ikeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - K Kitazato
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA
| | - G Libourel
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - B Marty
- Université de Lorraine, Centre national de la recherche scientifique, Centre de Recherches Pétrographiques et Géochimiques, F-54000 Nancy, France
| | - K Matsumoto
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Michikami
- Department of Mechanical Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - O Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | | | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - A N Nguyen
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - L R Nittler
- Carnegie Institution for Science, Washington, DC 20015, USA
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Science, Niigata University, Niigata 950-2181, Japan
| | - N Ogawa
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Shimada
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Soldini
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L69 3BX, UK
| | | | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yumoto
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M E Zolensky
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Aeronautics and Astronautics, The University of Tokyo, Tokyo 113-0033, Japan
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16
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Ohsaki Y, Shibatani R, Shimada T, Ishida T, Takagi S. Estimation of Adsorption Distribution of Di-cationic Porphyrin on Anionic Nanosheet Surface Using Self-fluorescence Quenching as a Probe. CHEM LETT 2021. [DOI: 10.1246/cl.210506] [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: 11/12/2022]
Affiliation(s)
- Yutaka Ohsaki
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Ryohei Shibatani
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji, Tokyo 192-0397, Japan
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17
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Abstract
The effect of a synthetic saponite surface on the "in-water" dehydration reaction of diol was examined using 4-formyl-1-methylquinolinium salt (MQu+) as a substrate. The equilibrium between aldehyde (MQu+-Aldehyde) and diol (MQu+-Diol) was affected by the surrounding environment. The equilibrium behavior was observed by 1H nuclear magnetic resonance (NMR) and UV-vis absorption measurements. Although MQu+ was completely in the form of MQu+-Diol in water, the equilibrium almost shifted to the MQu+-Aldehyde side when MQu+ was adsorbed on the saponite surface in water. In addition, the MQu+-Aldehyde ratio depended on the negative charge density of saponite. The factors that determine MQu+-Aldehyde: MQu+-Diol ratio were discussed from the thermodynamic analysis of the system. These data indicate that the electrostatic interaction between the charged saponite surface and MQu+ stabilized the aldehyde side enthalpically and destabilized it entropically. The major reason for these results is considered to be the difference in adsorption stabilization between MQu+-Aldehyde and MQu+-Diol on saponite surfaces.
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Affiliation(s)
- Kyosuke Arakawa
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
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18
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Shimada T, Cohen B, Shah K, Mosteller L, Bravo M, Ince I, Esa WAS, Cywinski J, Sessler DI, Ruetzler K, Turan A. Associations between intraoperative and post-anesthesia care unit hypotension and surgical ward hypotension. J Clin Anesth 2021; 75:110495. [PMID: 34560444 DOI: 10.1016/j.jclinane.2021.110495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/03/2021] [Accepted: 08/23/2021] [Indexed: 01/18/2023]
Abstract
STUDY OBJECTIVE To test whether patients who experience hypotension in the post-anesthesia care unit or during surgery are most likely to experience hypotension on surgical wards. DESIGN A prediction study using data from two randomized controlled trials. SETTING Operating room, post-anesthesia care unit, and surgical ward. PATIENTS 550 adult patients having abdominal surgery with ASA physical status I-IV. INTERVENTIONS Blood pressure measurement per routine intraoperatively, and with continuous non-invasive monitoring postoperatively. MEASUREMENTS The primary predictors were minimum mean arterial pressure (<60, <65, <70 and < 80 mmHg) and minimum systolic blood pressure (<70, <75, <80, <85 mmHg) in the post-anesthesia care unit. The secondary predictors were intraoperative minimum blood pressures with the same thresholds as the primary ones. Our outcome was ward hypotension defined as mean pressure < 70 mmHg or systolic pressure < 85 mmHg. A threshold was considered clinically useful if both sensitivity and specificity exceeded 0.75. MAIN RESULTS Minimum mean and systolic pressures in the post-anesthesia care unit similarly predicted ward mean or systolic hypotension, with the areas under the curves near 0.74. The best performing threshold was mean pressure < 80 mmHg in the post-anesthesia care unit which had a sensitivity of 0.41 (95% confidence interval [CI], 0.35, 0.47) and specificity of 0.91 (95% CI, 0.87, 0.94) for ward mean pressure < 70 mmHg and a sensitivity of 0.44 (95% CI, 0.37, 0.51) and specificity of 0.88 (95% CI, 0.84, 0.91) for ward systolic pressure < 85 mmHg. The areas under the curves using intraoperative hypotension to predict ward hypotension were roughly similar at about 0.60, with correspondingly low sensitivity and specificity. CONCLUSIONS Intraoperative hypotension poorly predicted ward hypotension. Pressures in the post-anesthesia care unit were more predictive, but the combination of sensitivity and specificity remained poor. Unless far better predictors are identified, all surgical inpatients should be considered at risk for postoperative hypotension.
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Affiliation(s)
- Tetsuya Shimada
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States; Department of Anesthesiology, National Hospital Organization, Murayama Medical Center, Musashimurayama, Tokyo, Japan; Department of Anesthesiology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Barak Cohen
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States; Division of Anesthesia, Intensive Care and Pain Management, Tel-Aviv Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Karan Shah
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States; Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, United States
| | - Lauretta Mosteller
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States
| | - Mauro Bravo
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States
| | - Ilker Ince
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States; Anesthesiology Clinical Research Office, Ataturk University, Erzurum, Turkey
| | - Wael Ali Sakr Esa
- Department of General Anesthesia, Cleveland Clinic, Cleveland, OH, United States
| | - Jacek Cywinski
- Department of General Anesthesia, Cleveland Clinic, Cleveland, OH, United States
| | - Daniel I Sessler
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States
| | - Kurt Ruetzler
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States; Department of General Anesthesia, Cleveland Clinic, Cleveland, OH, United States
| | - Alparslan Turan
- Department of OUTCOMES RESEARCH, Cleveland Clinic, Cleveland, OH, United States; Department of General Anesthesia, Cleveland Clinic, Cleveland, OH, United States.
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19
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Hirade Y, Ishida T, Shimada T, Takagi S. Adsorption and absorption behavior of cationic porphyrin on titania and clay nanosheets. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Yoshida Y, Shimada T, Ishida T, Takagi S. Effects of the Surface Charge Density of Clay Minerals on Surface-Fixation Induced Emission of Acridinium Derivatives. ACS Omega 2021; 6:21702-21708. [PMID: 34471772 PMCID: PMC8388081 DOI: 10.1021/acsomega.1c03157] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
Surface-fixation induced emission is a fluorescence enhancement phenomenon, which is expressed when dye molecules satisfy a specific adsorption condition on the anionic clay surface. The photophysical behaviors of two types of cationic acridinium derivatives [10-methylacridinium perchlorate (Acr+) and 10-methyl-9-phenylacridinium perchlorate (PhAcr+)] on the synthetic saponites with different anionic charge densities were investigated. Under the suitable conditions, the fluorescence quantum yield (Φf) of PhAcr+ was enhanced 22.3 times by the complex formation with saponite compared to that in water without saponite. As the inter-negative charge distance of saponite increased from 1.04 to 1.54 nm, the Φf of PhAcr+ increased 1.25 times. In addition, the increase in the negative charge distance caused the increase in the integral value of the extinction coefficient and the radiative deactivation rate constant (k f) and the decrease in the nonradiative deactivation rate constant. It should be noted that the 2.3 times increase in k f is the highest among the reported values for the effect of clay. From these results, it was concluded that the photophysical properties of dyes can be modulated by changing the charge density of clay minerals.
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Affiliation(s)
- Yuma Yoshida
- Department
of Applied Chemistry for Environment, Graduate School of Urban Environmental
Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department
of Applied Chemistry for Environment, Graduate School of Urban Environmental
Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department
of Applied Chemistry for Environment, Graduate School of Urban Environmental
Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
- Research
Center for Gold Chemistry, Tokyo Metropolitan
University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
- Research
Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department
of Applied Chemistry for Environment, Graduate School of Urban Environmental
Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
- Research
Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
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21
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Onishi R, Sano K, Shimada T, Ishida T, Takagi S. Dye-Sensitized Hydrogen Production by Porphyrin/Rh-Doped-Titania-Nanosheet Complex. BCSJ 2021. [DOI: 10.1246/bcsj.20200348] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ryota Onishi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Keito Sano
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
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22
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Eto S, Omura N, Shimada T, Takishima T, Takeuchi H, Kai W, Kodera K, Matsumoto T, Hirabayashi T, Kawahara H. Laparoscopic resection of a metachronous secondary lymph node metastasis in the mesentery of the ileum after surgery for sigmoid colon cancer with ileum invasion: a case report. Surg Case Rep 2021; 7:31. [PMID: 33492540 PMCID: PMC7835268 DOI: 10.1186/s40792-021-01114-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/12/2021] [Indexed: 11/22/2022] Open
Abstract
Background Extended excision of the permeation organ neighborhood is often performed in locally invasive colon cancer, and it is reported to have a survival benefit. In addition, some cases of secondary lymph node metastases in a permeation organ were reported. However, they are reports of synchronous secondary lymph node metastases, not metachronous secondary lymph node metastases. To the best of our knowledge, there are no cases of metachronous secondary lymph node metastases after the resection of a primary colorectal cancer in PubMed. Case presentation The case was a 67-year-old man who underwent colonoscopy because of weight loss. Sigmoid colon cancer with all circumference-related stenosis was found by examination, and the patient was transferred to our hospital for the purpose of scrutiny and treatment. The small intestine ileus caused by the invasion of sigmoid colon cancer developed after the transfer. Laparoscopic high anterior resection and extended excision of small intestine segmental resection was performed after the intestinal tract decompression with a nasal ileus tube. Histopathological analysis revealed a pathological diagnosis of pT4b (ileal submucosal invasion) N0 (0/11) M0 f Stage II, tub2, ly1, v2, PN0. Although adjuvant chemotherapy with capecitabine after the operation was planned for half a year, treatment was suspended in the first course by the patient’s self-judgment. No recurrence was observed for a year after the operation, but metastasis recurrence in the para-aortic lymph node was found by a computed tomography (CT) one and a half years after the operation. 18 F-fluorodeoxyglucose (FDG) positron emission tomography revealed that FDG was accumulated only in the para-aortic lymph node. Laparoscopic metastasis lymphadenectomy was performed due to the diagnosis of metachronous metastasis to the para-aortic lymph node alone. Intraoperative findings revealed that lymph node metastasis occurred in the mesentery of the ileum. No adjuvant treatment was done after the secondary operation, and he is still alive with no recurrence 1 year and 9 months after the operation. Conclusions We report a rare case of a laparoscopic resection of a metachronous secondary lymph node metastasis in the mesentery of the ileum after surgery for sigmoid colon cancer with ileum invasion.
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Affiliation(s)
- Seiichiro Eto
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan. .,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
| | - Nobuo Omura
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan.,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Tetsuya Shimada
- Department of Pathology, National Hospital Organization Nishisaitama-Chuo National Hospital, Tokyo, Japan
| | - Teruyuki Takishima
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan.,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Hideyuki Takeuchi
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan.,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Wataru Kai
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan.,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Keita Kodera
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan.,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Tomo Matsumoto
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan.,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Tsuyoshi Hirabayashi
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan.,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Hidejiro Kawahara
- Department of Surgery, National Hospital Organization Nishisaitama-Chuo National Hospital, Wakasa 2-1671, Tokorozawa-shi, Tokyo, Saitama, 359-1151, Japan.,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
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23
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Nakazato R, Kou Y, Yamamoto D, Shimada T, Ishida T, Takagi S, Munakata H, Kanamura K, Tachibana H, Inoue H. Effect of Li ions doping into p-type semiconductor NiO as a hole injection/transfer medium in the CO2 reduction sensitized/catalyzed by Zn-porphyrin/Re-complex upon visible light irradiation. Res Chem Intermed 2021. [DOI: 10.1007/s11164-020-04334-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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24
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Masumoto A, Ohya M, Murai R, Miura K, Shimada T, Amano H, Kubo S, Tada T, Tanaka H, Fuku Y, Kadota K. Early restenosis and late catch-up phenomenon after newer biodegradable- and durable-polymer drug-eluting stent implantations. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
It is yet to be known whether mechanisms underlying restenosis in newer-generation durable-polymer (DP) and biodegradable-polymer (BP) drug-eluting stents (DES) are different.
Purpose
This study aims to assess the incidences and predictors of early restenosis and late catch-up phenomenon after newer-generation durable-polymer (DP) and biodegradable-polymer (BP) DES.
Methods
Between 2010 and 2017, 13858 lesions in 6350 patients were treated with DES (4393 BP-DES, 9465 DP-DES). The early-term (within 1 year) and late-term (from 1 to 2 years) follow-up angiographies were scheduled. Late catch-up phenomenon was defined as in-stent restenosis (ISR) in lesions that evaded ISR within 1 year after stent implantation. ISR was defined as angiographic restenosis of more than 50%.
Results
The mean patient age was 71 years, and 76.7% were male. Early-term angiographies were performed in 10955 lesions (79.0%). Of those without early-term ISR, late-term angiographies were performed in 7771 lesions (56.1%). The incidences of mid-term restenosis and late catch-up phenomenon were 6.6% and 3.9%, respectively.
In the multivariate regression analyses, history of diabetes, hemodialysis and previous PCI were independent predictors of both early restenosis and late catch-up phenomenon. Also, some lesion characteristics such as chronic total occlusion, right coronary artery ostial lesion, small vessel (defined as reference diameter <2.5mm), long lesion (defined as lesion length >30mm) and treatment of ISR lesion were independent predictors of both early restenosis and late catch-up phenomenon.
Bifurcation lesion and heavily calcified lesion treated with rotablator were independent risk of early restenosis. Bypass graft lesion was an independent predictor of late catch-up phenomenon.
Early restenosis was observed less frequently in DP-DES than in BP-DES (6.3% versus 7.4%, P=0.012). On the contrary, late catch-up phenomenon was observed more frequently in DP-DES than in BP-DES (4.3% versus 2.9%, P=0.026).
Conclusions
Some lesion characteristics were independent predictors of early restenosis and late catch-up phenomenon after newer-generation DES implantation. The deployment of BP-DES resulted in more early restenosis and less late catch-up phenomenon compared to that of DP-DES.
Early Restenosis and Late Catch-Up
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - M Ohya
- Kurashiki Central Hospital, Kobe, Japan
| | - R Murai
- Kurashiki Central Hospital, Kobe, Japan
| | - K Miura
- Kurashiki Central Hospital, Kobe, Japan
| | - T Shimada
- Kurashiki Central Hospital, Kobe, Japan
| | - H Amano
- Kurashiki Central Hospital, Kobe, Japan
| | - S Kubo
- Kurashiki Central Hospital, Kobe, Japan
| | - T Tada
- Kurashiki Central Hospital, Kobe, Japan
| | - H Tanaka
- Kurashiki Central Hospital, Kobe, Japan
| | - Y Fuku
- Kurashiki Central Hospital, Kobe, Japan
| | - K Kadota
- Kurashiki Central Hospital, Kobe, Japan
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25
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Tominaga S, Sano K, Hirade Y, Shimada T, Ishida T, Takagi S. Adsorption orientation control of porphyrin on titania-nanosheet. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hata R, Shimada T, Shima Y, Okabe K, Ohya M, Miura K, Murai R, Amano H, Kubo S, Tada T, Tanaka H, Fuku Y, Goto T, Kadota K. Clinical features and prognosis of acute myocardial infarction due to coronary artery embolism. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Coronary artery embolism (CE) is one of the important causes of acute coronary syndrome (ACS). The feature of CE is that angiographic evidence of coronary artery embolism and thrombosis without atherosclerotic components. However, the prevalence of CE remains unknown because of the diffifulty to diagnose in the acute settings. A recent retrospective analysis suggested that up to 3% of ACS cases may result from CE.
Purpose
The aim of this study was to elucidate the prevalence, clinical features and long-term outcomes including all-cause and cardiac death.
Methods
We analysed the consecutive 2695 patients with first AMI performed coronary intervention between January 2004 and July 2017. CE was diagnosed by clinical histories and angiographic findings. We retrospectively evaluated the clinical and lesion characteristics and outcomes including all-cause and cardiac death.
Results
The prevalence of CE was 2.0% (n=55; CE group and n=2640; non-CE group), including 8 (15%) patients with multivessel CE. The CE group had higher average age (70.8±14.9 vs. 68.4±12.6, p<0.01), prevalence of female (54% vs. 27%, p<0.01), lower prevalence of smoking (34% vs. 62%, p<0.01). The common causes with CE were atrial fibrillation (47%), and malignant tumor (9%), and cardiomyopathy (5%), and patent foramen ovale (4%). Only 20% of patients with CE were treated with anti-coagulant therapy. The rate of distal infarction site (defined as #4, #8, #14–15) was significantly higher in CE group than non-CE group (54.0% vs. 4.9%, p<0.01). During median follow-up of 53.6 [32.6–77.3] months, CE and thromboembolism recurred in 5 patients (CE: 1 patient, stroke 4 patients). The 4-year incidence of all-cause death was significantly higher in the CE group, but cardiac death was not significantly different between the groups (28.8% vs. 14.8%, p=0.03; 12.8% vs. 5.1%, p=0.11).
Conclusion
Compared with non-CE group, the prevalence of distal infarction site was significantly higher in the CE group, and the incidence of cardiac death is not significantly different.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- R Hata
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - T Shimada
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - Y Shima
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - K Okabe
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - M Ohya
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - K Miura
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - R Murai
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - H Amano
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - S Kubo
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - T Tada
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - H Tanaka
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - Y Fuku
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - T Goto
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
| | - K Kadota
- Kurashiki Central Hospital, Cardiology, Kurashiki, Japan
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Miura K, Shimada T, Ohya M, Murai R, Amano H, Kubo S, Tada T, Tanaka H, Fuku Y, Goto T, Kadota K. Risk stratification based on academic research consortium high bleeding risk criteria for long-term bleeding event after everolimus-eluting stent implantation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Recently, the Academic Research Consortium for High Bleeding Risk (ARC-HBR) criteria has been suggested as the standard definition of HBR.
Purpose
We aimed to investigate the risk stratification based on ARC-HBR Criteria for long-term bleeding event after everolimus-eluting stent implantation
Methods
The study population comprised 1193 patients treated with EES without in-hospital event between 2010 and 2011. Individual ARC-HBR criteria was retrospectively assessed. Major bleeding were defined as the occurrence of a Bleeding Academic Research Consortium type 3 or 5 bleeding event. The mean follow-up period was 2996±433 days.
Results
There were 656 patients (55.0%) in HBR-groups. Cumulative incidence of major bleeding was significantly higher in HBR-group (8.1% vs 3.4% at 4 year, and 16.2% vs 5.7% at 8 year, P<0.001). Cumulative rate of major bleeding tend to be higher as the number of ARC-HBR criteria increased (≥2 Majors: 24.3%, 1 Major: 17.0%, ≥2 Minors:11.7%, and Non-HBR: 5.7%, P<0.001).
Conclusion
ARC-HBR criteria successfully stratified the long-term bleeding risk after drug-eluting stent implantation in real-world practice.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Miura
- Kurashiki Central Hospital, Kurashiki, Japan
| | - T Shimada
- Kurashiki Central Hospital, Kurashiki, Japan
| | - M Ohya
- Kurashiki Central Hospital, Kurashiki, Japan
| | - R Murai
- Kurashiki Central Hospital, Kurashiki, Japan
| | - H Amano
- Kurashiki Central Hospital, Kurashiki, Japan
| | - S Kubo
- Kurashiki Central Hospital, Kurashiki, Japan
| | - T Tada
- Kurashiki Central Hospital, Kurashiki, Japan
| | - H Tanaka
- Kurashiki Central Hospital, Kurashiki, Japan
| | - Y Fuku
- Kurashiki Central Hospital, Kurashiki, Japan
| | - T Goto
- Kurashiki Central Hospital, Kurashiki, Japan
| | - K Kadota
- Kurashiki Central Hospital, Kurashiki, Japan
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Sano K, Kuttassery F, Shimada T, Ishida T, Takagi S, Ohtani B, Yamakata A, Honma T, Tachibana H, Inoue H. Optically Transparent Colloidal Dispersion of Titania Nanoparticles Storable for Longer than One Year Prepared by Sol/Gel Progressive Hydrolysis/Condensation. ACS Appl Mater Interfaces 2020; 12:44743-44753. [PMID: 32915534 DOI: 10.1021/acsami.0c12951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The molecular catalyst sensitized system (MCSS), where an excited molecular catalyst adsorbed on a semiconductor such as TiO2 injects electrons to the conduction band of the semiconductor leading to hydrogen evolution/CO2 reduction coupled with an oxidation of water on the molecular catalyst, has been one of the most probable candidates in the approach to artificial photosynthesis. For a full utilization of visible light, however, a serious light scattering of the aqueous suspension of TiO2 in the visible region, which is generally experienced, should be avoided. Here, we report a preparation of optically transparent colloidal dispersion of TiO2 by the sol/gel reaction of TiCl4 through progressive hydrolysis/condensation under the basic condition without any calcination processes. The TiO2 nanoparticles (TiO2(NPs)) obtained were characterized as an amorphous particle (∼10-15 nm) having a microcrystal domain of anatase within several nm by XRD, Raman spectroscopies, XRF, XAFS, TG/DTA, and HRTEM, respectively. The energy-resolved distribution of carrier electron traps in TiO2(NPs) as a fingerprint of TiO2 was characterized through reversed double-beam photo-acoustic spectroscopy to have a close similarity to that of TiO2(ST-01) as well as the observation of carrier traps by transient absorption spectroscopy. Though the powder TiO2(NP) itself was not dispersed well in aqueous solution, the wet TiO2(NPs) as prepared before being dried up provided a completely transparent aqueous dispersion under the acidic condition (1 M HCl). Addition of methanol enabled the colloidal dispersion (TiO2(NPs, MeOH/H2O, 0.1 M HCl)) to keep the optical transparency for longer than 1 year (550 days), which is the first example of TiO2 dispersion storable for such a long period. TiO2(NPs, MeOH/H2O) exhibited a moderate photocatalytic reactivity of H2 evolution with a quantum yield of ∼2.6% upon 365 nm light irradiation. An optically transparent thin film of TiO2(NPs, MeOH/H2O) was also successfully prepared on a glass plate to exhibit an enhanced hydrophilicity upon UV light irradiation.
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Affiliation(s)
- Keito Sano
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Fazalurahman Kuttassery
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Bunsho Ohtani
- Institute for catalysis Hokkaido University, North 21, West 10, Sapporo 001-0021, Japan
| | - Akira Yamakata
- Toyota Technological Institute, 2-12-1, Hisakata, Tempaku, Nagoya 468-8511, Japan
| | - Tetsuo Honma
- Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Hiroshi Tachibana
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Haruo Inoue
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
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Ohsaki Y, Thomas A, Kuttassery F, Mathew S, Remello SN, Shimada T, Ishida T, Takagi S, Tachibana H, Inoue H. Two-electron oxidation of water to form hydrogen peroxide initiated by one-electron oxidation of Tin (IV)-porphyrins. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112732] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Takigawa T, Yoshida Y, Fujimura T, Ishida T, Shimada T, Takagi S. Adsorption Behavior of Mono-Cationic Pyridinium Salts on the Clay Surface. BCSJ 2020. [DOI: 10.1246/bcsj.20200100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tomoaki Takigawa
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yuma Yoshida
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Takuya Fujimura
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Department of Physics and Materials Science, Interdisciplinary Graduate School of Science and Engineering, Shimane University, 1060 Nishikawatsu-cho, Matsue, Shimane 690-8504, Japan
| | - Tamao Ishida
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
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31
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Kaku N, Shimada T, Nogami R, Tagomori H, Tsumura H. Three Dimensional Architecture of the Acetabular Transverse Ligament and its Connection with the Acetabular Labrum. Muscles Ligaments Tendons J 2020. [DOI: 10.32098/mltj.03.2020.01] [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: 11/05/2022]
Affiliation(s)
- N. Kaku
- Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, Yufu City, Oita, Japan
| | - T. Shimada
- Oita College of Judo Therapy and Acupuncture-Moxibustion, Oita City, Japan
| | - R. Nogami
- Oita University Graduate School of Medicine, Graduate School of Orthopedic Surgery, Yufu City, Oita, Japan
| | - H. Tagomori
- Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, Yufu City, Oita, Japan
| | - H. Tsumura
- Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, Yufu City, Oita, Japan
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Kodama H, Ibe T, Inoue R, Shimada T, Ishii H, Hamamoto Y. Bilateral lung cancer showing various responses to immune checkpoint inhibitors: A case report. Cancer Rep (Hoboken) 2020; 3:e1272. [PMID: 32783372 DOI: 10.1002/cnr2.1272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 06/30/2020] [Accepted: 06/30/2020] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Combination immune checkpoint inhibitor (ICI) therapy has become the mainstay in cancer treatment, and the various antitumor effects of ICIs are being observed. Synchronous multiple primary lung cancers (SMPLCs), which simultaneously involve tumors of different histologies, are often encountered in clinical settings. In standard lung cancer treatment, an anticancer drug, usually a platinum-based drug, is administered, and this first treatment provides some antitumor effect. Thus, the initial administration of platinum-based anticancer agent may mask the detection of SMPLCs. The following case represents different antitumor effects on two different primary lung lesions during treatment with ICIs. CASE PRESENTATION A 72-year-old man was referred to our hospital for an abnormal chest shadow, and computed tomography showed masses in the left lower and right upper lungs. Transbronchial lung biopsy from the left lung tumor revealed an adenocarcinoma. Following the administration of pembrolizumab (200 mg/body over 3 weeks) as monotherapy, the tumor in the left lung rapidly reduced in size. However, the tumor in the right upper lung continued to grow. Finally, his disease was diagnosed as SMPLCs of adenocarcinoma and small cell lung cancer. CONCLUSION Bilateral lung lesions considered to be intrapulmonary metastases have completely different responses to ICI treatment. It is necessary to consider a diagnosis of SMPLCs if lesions with different responses to antitumor therapy are observed.
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Affiliation(s)
- Hiroaki Kodama
- Department of Pulmonary Medicine, National Hospital Organization Nishisaitama-Chuo National Hospital, Tokorozawa City, Saitama, Japan
| | - Tatsuya Ibe
- Department of Pulmonary Medicine, National Hospital Organization Nishisaitama-Chuo National Hospital, Tokorozawa City, Saitama, Japan
| | - Rentaro Inoue
- Department of Pulmonary Medicine, National Hospital Organization Nishisaitama-Chuo National Hospital, Tokorozawa City, Saitama, Japan
| | - Tetsuya Shimada
- Laboratory of Pathology, National Hospital Organization Nishisaitama-Chuo National Hospital, Tokorozawa City, Saitama, Japan
| | - Hisashi Ishii
- Department of Pulmonary Medicine, National Hospital Organization Nishisaitama-Chuo National Hospital, Tokorozawa City, Saitama, Japan
| | - Yoichiro Hamamoto
- Department of Pulmonary Medicine, National Hospital Organization Nishisaitama-Chuo National Hospital, Tokorozawa City, Saitama, Japan
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Arai T, Tabuchi M, Sato Y, Ishida T, Shimada T, Takagi S. Unique Enzyme Activity of Peroxidase on a Clay Nanosheet. Langmuir 2020; 36:8384-8388. [PMID: 32407124 DOI: 10.1021/acs.langmuir.0c00607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The adsorption behavior and enzyme activity of horseradish peroxidase (HRP) was examined on a synthetic clay nanosheet, whose surface is flat at the atomic level and is negatively charged. The results showed that HRP is adsorbed effectively (adsorption equilibrium constant, K = 1.61 × 107 L mol-1) and that the structure of HRP was altered on the clay surface. The enzyme activity of HRP on the clay surface was evaluated by using H2O2 and tert-BuOOH as a substrate. As a result, HRP on the clay surface was able to work for tert-BuOOH, while HRP in solution did not show any activity. In addition, HRP on SSA showed reactivity even under the high-temperature conditions. These results indicate that the clay nanosheet can be a unique modifier for enzyme activity of HRP.
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Affiliation(s)
- Tatsumi Arai
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Masahiro Tabuchi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Yurina Sato
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
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Nishina H, Hoshino S, Ohtani Y, Ishida T, Shimada T, Takagi S. Anisotropic energy transfer in a clay-porphyrin layered system with environment-responsiveness. Phys Chem Chem Phys 2020; 22:14261-14267. [PMID: 32555802 DOI: 10.1039/d0cp02263b] [Citation(s) in RCA: 2] [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: 11/21/2022]
Abstract
The adsorption orientation behavior of tetrakis(1-methylpyridinium-3-yl)porphyrin (m-TMPyP) and tetrakis(1-methylpyridinium-4-yl)porphyrin (p-TMPyP) on the clay monolayer prepared by the Langmuir Blodgett (LB) technique was investigated using the absorption and dichroic spectra obtained on a waveguide. It was revealed that the orientation of m-TMPyP and p-TMPyP on the clay monolayer, that is parallel and tilted with respect to the clay surface, depends on the surrounding environments such as water and N,N-dimethylformamide (DMF). The anisotropic photochemical energy transfer between m-TMPyP as a donor and p-TMPyP as an acceptor in the layered system was investigated in water and in DMF-water (9/1 (v/v)) by a fluorescence observation. As a result, while energy transfer efficiency (ηET) was 60% for the parallel-parallel orientation in water, that was 10% for the tilted-tilted orientation in DMF-water (9/1 (v/v)). The major factor for the change of ηET could be a change of the distance between m-TMPyP and p-TMPyP, and the J value that is a parameter for spectral overlap between energy donor's fluorescence and acceptor's absorption.
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Affiliation(s)
- Haruka Nishina
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan.
| | - Shota Hoshino
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan.
| | - Yuta Ohtani
- Department of Applied Chemistry, Sanyo-Onoda City University, 1-1-1 Daigaku-dori, Sanyo-Onoda, Yamaguchi, 756-0884, Japan
| | - Tamao Ishida
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan. and Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan and Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan.
| | - Shinsuke Takagi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan. and Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
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Yoshida Y, Shimada T, Ishida T, Takagi S. Thermodynamic study of the adsorption of acridinium derivatives on the clay surface. RSC Adv 2020; 10:21360-21368. [PMID: 35518779 PMCID: PMC9054366 DOI: 10.1039/d0ra03158e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 05/17/2020] [Indexed: 12/03/2022] Open
Abstract
In this study, the adsorption behavior of mono-cationic acridinium derivatives on a synthetic clay mineral (Sumecton SA) was investigated. The acridinium derivatives were adsorbed on the clay surface without aggregation, as found from the changes in the absorption spectra of the acridinium derivatives with SSA and without SSA represented by two-component equilibrium systems of adsorbed and non-adsorbed components. Following the Langmuir isotherm analysis, the adsorption equilibrium constants and maximum adsorption amounts were determined for acridinium derivatives, and the Gibbs free energy change (ΔG) was calculated to be in the range of −33.8 to 40.0 kJ mol−1 from the adsorption equilibrium constants. These results indicated that the adsorption of acridinium derivatives on the clay surface was an exergonic reaction. Moreover, thermodynamic parameters such as enthalpy change (ΔH) and entropy change (ΔS) were obtained from the temperature effect experiments. For all acridinium derivatives, ΔH (from −7.82 to −26.0 kJ mol−1) and ΔS (0.047–0.088 kJ mol−1 K−1) were found to be negative and positive, respectively. It was suggested that not only electrostatic interactions, but also van der Waals forces and hydrophobic interactions played an important role in the adsorption of cationic aromatic molecules on the clay surface. Because these thermodynamic parameters showed a strong correlation with the molecular cross-sectional area of acridinium derivatives, it was suggested that the contribution of hydrophobic interactions became smaller as the molecular cross-sectional area became larger. Thermodynamic studies indicate that van der Waals and hydrophobic interactions contribute to the adsorption of mono-cationic acridinium derivatives on the clay surface.![]()
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Affiliation(s)
- Yuma Yoshida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji-shi Tokyo 192-0397 Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji-shi Tokyo 192-0397 Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji-shi Tokyo 192-0397 Japan.,Research Center for Gold Chemistry, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachiohji-shi Tokyo 192-0397 Japan.,Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University 1-1 Minami-ohsawa Hachiohji-shi Tokyo 192-0397 Japan +81 42 677 2839
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji-shi Tokyo 192-0397 Japan.,Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University 1-1 Minami-ohsawa Hachiohji-shi Tokyo 192-0397 Japan +81 42 677 2839
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36
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Hashizume N, Ohtaki M, Nihei K, Sakamoto K, Shirahata Y, Shimada T, Ohta E, Yamai D, Takeshi A, Sato K, Suzuki S, Yagi M. Laparoscopic surgery for urachal remnants in pubescent children: a case series. Surg Case Rep 2020; 6:120. [PMID: 32488465 PMCID: PMC7266900 DOI: 10.1186/s40792-020-00884-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/24/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Various techniques are applied in laparoscopic surgery for the treatment of urachal remnants, which are less invasive and associated with lower morbidity. We herein report a case series in which we treated urachal remnants and medial umbilical ligaments using a laparoscopic approach. CASE PRESENTATION From 2015 to 2019, seven patients (male, n = 5; female, n = 2) with a urachal remnant were treated by laparoscopic surgery in our institute. Five boys and two girls with a median age of 11 years (range 10-15 years) were enrolled in this series. The clinical results of laparoscopic treatment, the perioperative records, and the pathologic results were evaluated. The operation was performed with the use of three ports and an EZ access® (Hakko Medical, Nagano, Japan), which is a silicon cap for the wound retractor (Lap Protector®, Hakko Medical, Nagano, Japan). The removal of the urachal remnant and medial umbilical ligaments was completed with a median operative time of 92 min (range 69-128). The median hospital stay after surgery was 4 days (range 2-5). No patients developed intra-postoperative complications or recurrence. CONCLUSIONS Although our data are preliminary, complete laparoscopic removal of symptomatic urachal remnants and medial umbilical ligaments was a safe and effective minimally invasive approach, with better cosmetic outcomes.
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Affiliation(s)
- Naoki Hashizume
- Department of Pediatric Surgery, Tsuruoka Municipal Shonai Hospital, 4-20 Izumi-machi, Tsuruoka-shi, Yamagata, 997-0033, Japan. .,Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan. .,Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Japan.
| | - Masahiro Ohtaki
- Department of Pediatric Surgery, Tsuruoka Municipal Shonai Hospital, 4-20 Izumi-machi, Tsuruoka-shi, Yamagata, 997-0033, Japan
| | - Kouei Nihei
- Department of Surgery, Niigata Prefectural Tsubame Rosai Hospital, Tsubame, Japan
| | - Kaoru Sakamoto
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
| | - Yasuhiro Shirahata
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
| | - Tetsuya Shimada
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
| | - Eriko Ohta
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
| | - Daisuke Yamai
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
| | - Akihiro Takeshi
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
| | - Kaito Sato
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
| | - Satoshi Suzuki
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Tsuruoka, Japan
| | - Minoru Yagi
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Japan
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37
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Morota T, Sugita S, Cho Y, Kanamaru M, Tatsumi E, Sakatani N, Honda R, Hirata N, Kikuchi H, Yamada M, Yokota Y, Kameda S, Matsuoka M, Sawada H, Honda C, Kouyama T, Ogawa K, Suzuki H, Yoshioka K, Hayakawa M, Hirata N, Hirabayashi M, Miyamoto H, Michikami T, Hiroi T, Hemmi R, Barnouin OS, Ernst CM, Kitazato K, Nakamura T, Riu L, Senshu H, Kobayashi H, Sasaki S, Komatsu G, Tanabe N, Fujii Y, Irie T, Suemitsu M, Takaki N, Sugimoto C, Yumoto K, Ishida M, Kato H, Moroi K, Domingue D, Michel P, Pilorget C, Iwata T, Abe M, Ohtake M, Nakauchi Y, Tsumura K, Yabuta H, Ishihara Y, Noguchi R, Matsumoto K, Miura A, Namiki N, Tachibana S, Arakawa M, Ikeda H, Wada K, Mizuno T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Yano H, Ozaki M, Takeuchi H, Yamamoto Y, Okada T, Shimaki Y, Shirai K, Iijima Y, Noda H, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Mimasu Y, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Nakazawa S, Terui F, Tanaka S, Yoshikawa M, Saiki T, Watanabe S, Tsuda Y. Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution. Science 2020; 368:654-659. [DOI: 10.1126/science.aaz6306] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 04/02/2020] [Indexed: 11/02/2022]
Affiliation(s)
- T. Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - S. Sugita
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y. Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M. Kanamaru
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - E. Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Departamento de Astrofísica, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain
- Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain
| | - N. Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R. Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - N. Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H. Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M. Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y. Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - S. Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M. Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - C. Honda
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T. Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064 Japan
| | - K. Ogawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
- JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H. Suzuki
- Department of Physics, Meiji University, Kawasaki 214-8571, Japan
| | - K. Yoshioka
- Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa 277-8561, Japan
| | - M. Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N. Hirata
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - M. Hirabayashi
- Department of Aerospace Engineering, Auburn University, Auburn, AL 36849, USA
| | - H. Miyamoto
- Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, Japan
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - T. Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - T. Hiroi
- Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - R. Hemmi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - O. S. Barnouin
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - C. M. Ernst
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - K. Kitazato
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T. Nakamura
- Department of Earth Science, Tohoku University, Sendai 980-8578, Japan
| | - L. Riu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H. Kobayashi
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - S. Sasaki
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - G. Komatsu
- International Research School of Planetary Sciences, Università d’Annunzio, 65127 Pescara, Italy
| | - N. Tanabe
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y. Fujii
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - T. Irie
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - M. Suemitsu
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - N. Takaki
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - C. Sugimoto
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K. Yumoto
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M. Ishida
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - H. Kato
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K. Moroi
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - D. Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - P. Michel
- Université Côte d’Azur, Observatoire de la Côte d’Azur, Centre National de le Recherche Scientifique, Laboratoire Lagrange, 06304 Nice, France
| | - C. Pilorget
- Institut d’Astrophysique Spatiale, Université Paris-Sud, 91405 Orsay, France
| | - T. Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Ohtake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y. Nakauchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Tsumura
- Department of Natural Science, Faculty of Science and Engineering, Tokyo City University, Tokyo 158-8557, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - H. Yabuta
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Y. Ishihara
- National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - R. Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Matsumoto
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - A. Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - N. Namiki
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S. Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M. Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H. Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K. Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T. Mizuno
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - C. Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S. Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - O. Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T. Shimada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Soldini
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L69 3BX, UK
| | - R. Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - H. Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - Y. Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T. Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y. Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Noda
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S. Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T. Yamaguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N. Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - G. Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - Y. Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T. Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - A. Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F. Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T. Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Watanabe
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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38
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Arakawa M, Saiki T, Wada K, Ogawa K, Kadono T, Shirai K, Sawada H, Ishibashi K, Honda R, Sakatani N, Iijima Y, Okamoto C, Yano H, Takagi Y, Hayakawa M, Michel P, Jutzi M, Shimaki Y, Kimura S, Mimasu Y, Toda T, Imamura H, Nakazawa S, Hayakawa H, Sugita S, Morota T, Kameda S, Tatsumi E, Cho Y, Yoshioka K, Yokota Y, Matsuoka M, Yamada M, Kouyama T, Honda C, Tsuda Y, Watanabe S, Yoshikawa M, Tanaka S, Terui F, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Takeuchi H, Yamamoto Y, Okada T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Iwata T, Ozaki M, Abe M, Namiki N, Kitazato K, Tachibana S, Ikeda H, Hirata N, Hirata N, Noguchi R, Miura A. An artificial impact on the asteroid (162173) Ryugu formed a crater in the gravity-dominated regime. Science 2020; 368:67-71. [PMID: 32193363 DOI: 10.1126/science.aaz1701] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 03/04/2020] [Indexed: 11/02/2022]
Abstract
The Hayabusa2 spacecraft investigated the small asteroid Ryugu, which has a rubble-pile structure. We describe an impact experiment on Ryugu using Hayabusa2's Small Carry-on Impactor. The impact produced an artificial crater with a diameter >10 meters, which has a semicircular shape, an elevated rim, and a central pit. Images of the impact and resulting ejecta were recorded by the Deployable CAMera 3 for >8 minutes, showing the growth of an ejecta curtain (the outer edge of the ejecta) and deposition of ejecta onto the surface. The ejecta curtain was asymmetric and heterogeneous and it never fully detached from the surface. The crater formed in the gravity-dominated regime; in other words, crater growth was limited by gravity not surface strength. We discuss implications for Ryugu's surface age.
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Affiliation(s)
- M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - K Ogawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.,JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Kadono
- Department of Basic Sciences, University of Occupational and Environmental Health, Kitakyusyu 807-8555, Japan
| | - K Shirai
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Ishibashi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - C Okamoto
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Takagi
- Department of Regional Business, Aichi Toho University, Nagoya 465-8515, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - P Michel
- Observatoire de la Côte d'Azur, Université Côte d'Azur, CNRS, Laboratoire Lagrange, CS34229, 06304 Nice Cedex 4, France
| | - M Jutzi
- Physics Institute, University of Bern, National Centre of Competence in Research PlanetS, Gesellschaftsstrasse 6, 3012, Bern, Switzerland
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Kimura
- Department of Electrical Engineering, Tokyo University of Science, Noda 278-8510, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Toda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Imamura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - S Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, 38205 San Cristóbal de La Laguna, Spain
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Yoshioka
- Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - C Honda
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - F Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Yamaguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Yoshikawa
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - C Hirose
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - O Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Shimada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Soldini
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L3 5TQ, UK
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - K Kitazato
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - S Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Ikeda
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - N Hirata
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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Suzuki S, Takeuchi Y, Hiramatsu N, Tsuneyoshi H, Shimada T. P1307 An echocardiographic observation over the disappearing process of the prosthetic valve thrombus caused by the inflammatory hypercoagulability; a case report. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Whenever fever and inflammatory reaction continue for a while in the patients with a prosthetic valve, than usual, we must keep infective endocarditis in mind. On the other hand, inflammation and thrombosis are well known to coexist often. There are several reports of thrombotic valves associated with inflammation-activated hypercoagulability. Furthermore, C-reactive protein (CRP) has been reported to imply an increased risk of thrombus especially in the presence of an injury on the prosthetic valve.
Case report
We report a case of a 70-year-old male with a leaflet thrombus on the bioprosthetic aortic valve. He suffered from fever, and symptoms of heart failure and was hospitalized for treatment. Blood tests presented that white blood cell count was 4900/μL (neutrophil 81.1%) and CRP 10.82 mg/dL. Infectious endocarditis (IE) was suspected. Transthoracic echocardiography (TTE) was per-formed, however, vegetation and abscess were not found. Noteworthily, the bioprosthetic valve leaflet on the right coronary cusp showed thickening and opening dysfunction (Figure A, parasternal short axis). Mean pressure gradient (mPG) through the aortic valve was 15mmHg and peak velocity (Vmax) 2.7m/s. Blood culture was negative, and his body temperature and CRP were improved by empirical antibiotic administration. The anticoagulation therapy with warfarin was started, he was discharged from the hospital and followed up in the outpatient clinic. TTE after the initiation of anticoagulation therapy, did not reveal any more dysfunction on the bioprosthetic valve (mPG: 9mmHg, Vmax: 2.2m/s) (Figure B, parasternal short axis). The diagnostic and therapeutic process of this case implied success. The opening-dysfunction of prosthetic valve leaflets was reversible and therefore, we concluded that the thickening of the prosthetic valve could be attributed to thrombus adhesion. Computed Tomography (CT) was not performed because he suffered from chronic kidney disease.
Conclusion
Surely, CT is very useful for the evaluation of thrombotic valves in the patients in whom it is permissible to use contrast agent. However, we could successfully evaluate the recovery process of leaflet thrombosis by echocardiography because of a difficult reason of CT use in this case. The prolongation of inflammatory reaction in the patients with a prosthetic valve should keep IE in mind in everyday life. Even if the findings of bacterial infection are obscure, it is more and more important to observe carefully the change of leaflets, whenever an open-dysfunction and a thrombus adhesion of the prosthetic valves exist.
Abstract P1307 Figure.
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Affiliation(s)
- S Suzuki
- Shizuoka General Hospital, Department of Clinical Laboratory Medicine, Shizuoka, Japan
| | - Y Takeuchi
- Shizuoka General Hospital, Department of Cardiology, Shizuoka, Japan
| | - N Hiramatsu
- Shizuoka General Hospital, Department of Clinical Laboratory Medicine, Shizuoka, Japan
| | - H Tsuneyoshi
- Shizuoka General Hospital, Department of Cardiovascular Surgery, Shizuoka, Japan
| | - T Shimada
- Shizuoka General Hospital, Clinical Research Center, Shizuoka, Japan
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Suzuki S, Takeuchi Y, Hiramatsu N, Tsuneyoshi H, Shimada T. P702 An unusual echocardiographic finding of protrusive vegetation caused by perivalvular abscess perforation into the left atrium. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
It is well-known that Infective endocarditis (IE) caused by S. aureus progresses rapidly and is highly destructive. The most often abscess formation after aortic valve replacement (AVR) is the mitral-aortic intervalvular fibrosa (MAIVF). It is difficult to cure MAIVF radically once infection occurs, and then the abscess tends to spread. After abscess formation is once established, IE tends to be widespread, the prognosis is definitely poor unless surgical repairment is executed, and then an emergency surgery is essential and unavoidable for complete cure. We report an unusual case of aortic valve abscess with perforation of vegetation into the left atrium after aortic valve replacement.
Case report
A 77-year-old man underwent the bioprosthetic AVR for aortic valve stenosis one month ago. On the 9th day after discharge, he visited the hospital for the follow-up. At the time, the body temperature was 36.6 ° C, the blood pressure 133/50 mmHg, white blood cell count 10500/μL, and C-reactive protein 3.31 mg/dL. Transthoracic echocardiography (TTE) demonstrated the perivalvular abscesses on the prosthetic aortic valve and mass structures attached to the MAIVF in the left atrium (Figure A, C). He was hospitalized again and had an emergency re-operation. Intraoperative transesophageal echocardiography (TEE) showed a perivalvular abscess on the prosthetic valve, and a high-intensity structure (vegetation like) protruding from the Valsalva Sinus into the left atrium of the MAIVF (Figure B, D). Surgical findings did not reveal any wart on the native valve itself. One-third of the annulus was disrupted. The subvalvular tissue all around was abscessed. Notably, the abscess cavity between NCC and LCC reached MAIVF of the anterior mitral leaflet, and the structure projecting to the left atrium was vegetation. In this case, TTE pointed out a perivalvular abscess of the aortic valve, IE was suspected at the time of outpatient visit at an early stage after discharge, and the spread of inflammation was observed with a high speed beyond the expectation at the time of operation.
Conclusion
Early after the operation, TTE revealed a mass was protruded into the left atrium. Generally, vegetation is soft and flexible in itself. However, in this case, the vegetation was less mobile, and for that reason, abscesses or tumors were suspected. TEE enabled us to obtain anatomically more detailed information and to foresee the left atrial wall repairment at the time of reoperation. We reported an unusual case of IE with solid vegetation attached to the wall and difficult to diagnose.
Abstract P702 Figure.
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Affiliation(s)
- S Suzuki
- Shizuoka General Hospital, Department of Clinical Laboratory Medicine, Shizuoka, Japan
| | - Y Takeuchi
- Shizuoka General Hospital, Department of Cardiology, Shizuoka, Japan
| | - N Hiramatsu
- Shizuoka General Hospital, Department of Clinical Laboratory Medicine, Shizuoka, Japan
| | - H Tsuneyoshi
- Shizuoka General Hospital, Department of Cardiovascular Surgery, Shizuoka, Japan
| | - T Shimada
- Shizuoka General Hospital, Clinical Research Center, Shizuoka, Japan
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Takeuchi Y, Suzuki S, Tsuneyoshi H, Sakamoto H, Shimada T. P248 Changes of atrial septum defect caused by posture during three-dimensional transesophageal echocardiography ( a case of Platypnea-orthodeoxia syndrome). Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Platypnea-Orthodeoxia syndrome (POS) is a rare phenomenon which is characterized postural hypoxia due to the intracardiac shunt from right to left through a patent foramen ovale, an atrial septal defect or a pulmonary arteriovenous malformation. POS is often underestimated because the hypoxia by postural change is difficult to be detected. We evaluated three-dimensional transesophageal echocardiography (TEE) to diagnose POS in an elderly patient.
Case report
A 84-year-old woman suffered from repetitive syncope for several years. She undertook twelve leads electrocardiogram (ECG), screening transthoracic echocardiography (TTE), twenty-four hours ECG and treadmill stress ECG, however, the cause of syncope was not identified. After another syncope event happened, she was transferred to the emergency room. Then, the hypoxia caused by sitting position was pointed out for the first time.
Her hypoxia was improved by supine position and oxygen administration. TTE demonstrated no right heart enlargement. Shunt flow was suspected on her atrial septum; however, it was difficult to reveal it by TTE because of her obesity. Therefore, she underwent intravenous saline injection test. In the decubitus position, an intravenous injection of saline under Valsalva maneuver revealed the shunt flow from the right atrium to the left atrium. Her arterial oxygen saturation (SpO2) was 95%. In the sitting position, a visible shunt flow was observed, then her SpO2 dropped to 85%. By TEE, the shunt hole was found in the oval fossa of the atrial septum. TEE was evaluated by different positions. The atrial defect hole became larger in the sitting position (area 1.05cm2) than in the supine position (area 0.43cm2). As a result, the postural change to sitting revealed Platypnea-Orthodeoxia syndrome associated with ASD. The pulmonary blood flow/systemic blood flow ratio (Qp/Qs) was estimated at 1.6. After surgical ASD closure, she was discharged without any symptoms.
Conclusion
Unclearness of TTE and the absence of a right heart overload may lead to misdiagnosis of POS. If a syncope patient caused hypoxia in the only sitting position, detailed echocardiography should be needed to rule out a diagnosis of POS. This is considerably valuable case of three-dimensional TEE confirmed the changes of ASD size by postural change.
Abstract P248 Figure.
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Affiliation(s)
- Y Takeuchi
- Shizuoka General Hospital, Caldiology, Shizuoka, Japan
| | - S Suzuki
- Shizuoka General Hospital, Department of Clinical Laboratory Medicine, Shizuoka, Japan
| | - H Tsuneyoshi
- Shizuoka General Hospital, Cardiovascular surgery, Shizuoka, Japan
| | - H Sakamoto
- Shizuoka General Hospital, Cardiology, Shizuoka, Japan
| | - T Shimada
- Shizuoka General Hospital, Clinical research center, Shizuoka, Japan
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Takeuchi Y, Suzuki S, Tsuneyoshi H, Sakamoto H, Shimada T. P1472 Concealed thrombus in a 12-year-old boy diagnosed by disappearance of intricate comb-like pectinate muscle form in the left atrial appendage. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
As previously known, patients with prolonged atrial fibrillation often have atrial thrombus. However, in children, cardiogenic embolism due to atrial fibrillation is rare. Also, the diagnosis of residual thrombus in the left atrial appendage is sometimes difficult even by transesophageal echocardiography (TEE). We have obtained a meaningful comparison between TEE findings and surgical specimen of bilateral atrial appendage.
Case report
A 12-year-old boy admitted to the nearby hospital, because of sudden onset of right-side hemiplegia. Till then, he was born at normal weight and grew up without any problem. The electrocardiogram indicated atrial fibrillation. He was transferred to the pediatric cardiology department of a hospital with higher function for the treatment of cardiogenic thromboembolism.
After 72 hours from the onset of first thromboembolism, a new embolic event happened in his left brachial artery. The contrast-enhanced computed tomography (CT) showed thrombus of bilateral atrium and coronary sinus. Consequently, residual thrombus led to the potential risk of additional embolization. Therefore, catheter cerebral thrombectomy was performed, and then surgical thrombectomy for the bilateral atrium was planned. Preoperative CT showed thrombus in the left atrial appendage (LAA). However, intraoperative TEE showed no obvious thrombus in the LAA. Intricate pectinate muscle formation in the left atrial appendage almost disappeared (figure1A), which suspected remaining thrombus. In addition, massive thrombus was seen in the right atrium and coronary sinus. Coronary sinus thrombus was removed as far as possible, and bilateral atrial appendage resection and myocardial biopsy were performed. Simultaneously, modified-Maze was also done. Heart rhythm returned into sinus rhythm after surgery. Pathological findings did not show specific findings of myocarditis or pericarditis.
Until now, the cause of thrombotic factors has not been fully clarified. Although the time of onset is unknown, probably, heart failure was triggered by atrial fibrillation, and consequently thromboembolism occurred. In the resected left atrial appendage, small thrombus remained among pectinate muscle (figure1B); therefore, postoperative anticoagulation should be needed.
Conclusion
We experienced a boy with thrombus in bilateral atrial appendages. In the resected left atrial appendage, multiple small thrombi remained in the pectinate muscle. From our experience, the disappearance of comb-like form in pectinate muscle by TEE suspects the residual thrombus, especially in the case of cardiogenic embolism.
Abstract P1472 Figure.
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Affiliation(s)
- Y Takeuchi
- Shizuoka General Hospital, Cardiology, Shizuoka, Japan
| | - S Suzuki
- Shizuoka General Hospital, Department of Clinical Laboratory Medicine, Shizuoka, Japan
| | - H Tsuneyoshi
- Shizuoka General Hospital, Cardiovascular surgery, Shizuoka, Japan
| | - H Sakamoto
- Shizuoka General Hospital, Cardiology, Shizuoka, Japan
| | - T Shimada
- Shizuoka General Hospital, Clinical research center, Shizuoka, Japan
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Ince I, Shimada T, Ueshima H, Hassan M, Turan A. Thoraco lumbar interfascial plane (TLIP) block: A systematic review of the literature. J Clin Anesth 2019; 61:109655. [PMID: 31780272 DOI: 10.1016/j.jclinane.2019.109655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/01/2019] [Accepted: 11/11/2019] [Indexed: 11/25/2022]
Affiliation(s)
- Ilker Ince
- Department of Anesthesiology and Reanimation, School of Medicine, Ataturk University, TR-25240 Erzurum, Turkey.
| | - Tetsuya Shimada
- Department of Pharmacology, National Defense Medical College, Saitama, Japan
| | - Hironobu Ueshima
- Department of Anesthesiology, Showa University Hospital, Tokyo, Japan.
| | - Mohamed Hassan
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Alparslan Turan
- Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, Cleveland, OH, USA.
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Nakazato R, Sano K, Ichihara H, Ishida T, Shimada T, Takagi S. Factors for the emission enhancement of dimidium in specific media such as in DNA and on a clay surface. Phys Chem Chem Phys 2019; 21:22732-22739. [PMID: 31384860 DOI: 10.1039/c9cp03285a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Dimidium (3,8-diamino-5-methyl-6-phenylphenanthridinium: NH2PhP) is a well-known fluorophore as a DNA probe, although its fluorescence enhancement mechanism is not clear. In this study, we investigated the fluorescence enhancement mechanism of NH2PhP on a clay surface by observing the fluorescence behavior. Four systematically selected phenanthridinium derivatives (PDs): NH2PhP, 3,8-bisdimethylamino-5-methyl-6-phenylphenanthridinium (NMe2PhP), 5-methyl-6-phenylphenanthridinium (PhP) and 5-methylphenanthridinium (P) and synthetic clay were used as guest and host materials, respectively. It was revealed that the suppression of hydrogen bonding with water (N-HOH or NH-OH2) is the dominant factor for the fluorescence enhancement on the clay surface for NH2PhP and NMe2PhP. In addition, judging from the fluorescence enhancement for NH2PhP, NMe2PhP and PhP and no fluorescence enhancement for P on the clay surface, the suppression of rotation of the phenyl ring was indicated to make a partial contribution to the fluorescence enhancement mechanism. Because the fluorescence enhancement behavior was quite similar on the clay surface and in DNA, the obtained results afford an important clue to discuss the fluorescence enhancement mechanism of NH2PhP in DNA.
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Affiliation(s)
- Ryosuke Nakazato
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan.
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Okabe K, Ohya M, Matsushita K, Kuwayama A, Murai R, Miura K, Shimada T, Amano H, Kubo S, Habara S, Tada T, Tanaka H, Fuku Y, Goto T, Kadota K. P2693Late catch-up phenomenon and late-term target lesion revascularization of two-stenting for coronary bifurcation lesions between first and second generation drug-eluting stents. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The second generation drug-eluting stent (G2-DES) has been reported as superior to the first generation drug-eluting stent (G1-DES) in mid-term outcomes. However, the late-term outcomes between G1-DES and G2-DES in two-stenting for coronary bifurcation lesions are not well studied.
Purpose
To evaluate the late catch-up phenomenon and late-term target lesion revascularization (TLR) of two-stenting for coronary bifurcation lesions between G1-DES and G2-DES.
Methods
This study included 1133 lesions in 1089 patients undergoing drug eluting stent implantation with two stenting from 2004 to 2016. These consisted of 496 G1-DES implanted lesions and 637 G2-DES implanted lesions. Late-term follow-up angiography was performed without in-stent restenosis (ISR) and TLR at mid-term follow-up in 582 lesions (242 G1-DES lesions and 340 G2-DES lesions). ISR was defined as more than 50% restenosis. Late catch-up phenomenon was defined as ISR without ISR within 1 year following index stent implantation. Late-term TLR was defined as from 1 to 5 year TLR. Bifurcation lesions were defined as the main branch ranging from the proximal stem to the distal main branch with boundaries defined by 5 mm proximal and distal to the stent-implanted area, and the side branch ranging from the bifurcation carina to the distal side branch with boundaries defined by the carina and 5 mm distal to the stent-implanted area.
Results
The median follow-up duration was 5.1 years (the first and third quarters, 3.2 and 7.1 years). The late-catch up phenomenon rate significantly differed between the G1-DES and G2-DES groups (16.9% vs 8.4%, p=0.001). A significant difference in late catch-up between the same two groups was also observed in bifurcation lesions of the main branch (5.0% vs 0.6%, p=0.001) and side branch (10.3% vs 5.6%, p=0.033), respectively. The 5-year cumulative rates also differed between the two groups in TLR (8.2% vs 3.7% log-rank p=0.001), and late-term TLR (7.0% vs 3.6% log-rank p=0.001).
Conclusion
Two-stenting using G2-DES, compared with G1-DES, significantly reduced late-term restenosis and TLR. The restenosis rate in bifurcation area may be associated with differences between two groups in late-term outcome.
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Affiliation(s)
- K Okabe
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - M Ohya
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - K Matsushita
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - A Kuwayama
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - R Murai
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - K Miura
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - T Shimada
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - H Amano
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - S Kubo
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - S Habara
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - T Tada
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - H Tanaka
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - Y Fuku
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - T Goto
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
| | - K Kadota
- Kurashiki Central Hospital, Department of Cardiology, Kurashiki, Japan
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Tada T, Miura K, Ohya M, Shimada T, Murai R, Amano H, Kubo S, Habara S, Tanaka H, Fuku Y, Kadota K. P5614The association between tissue morphology assessed with optical coherence tomography and mid and late-term results after percutaneous coronary intervention for in-stent restenosis lesions. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
It was reported that tissue morphology of in-stent restenosis (ISR) lesions assessed with optical coherence tomography (OCT) had an effect on midterm results including ISR and target lesion revascularization (TLR) rates after percutaneous coronary intervention (PCI). However, little was known about the association between tissue morphology assessed with OCT and late-term results.
Methods
We performed PCI treated with paclitaxel coated balloon (PCB) or drug-eluting stent (DES) for 452 ISR lesions (260 lesions with fibrous plaque and 192 lesions with lipid-laden plaque) using OCT between May 2008 and July 2016. Six- to eight-month (midterm) angiographic follow-up was performed on 422 of the 452 ISR lesions (follow-up rate: 93.4%). Furthermore, eighteen- to twenty-month (late-term) angiographic follow-up was performed on 337 of the 361 ISR lesions (follow-up rate: 93.4%) which were free from midterm TLR. We examined the association between tissue morphology, midterm-results and late-term results including ISR and TLR rates. Fibrous plaque was defined as homogeneous, signal-rich regions with low attenuation. Lipid-laden plaque was defined as diffuse border, signal poor regions with high attenuation.
Results
The patients were 353 men and 69 women, and the mean age was 68.8±9.6 years. PCI were performed with PCB in 285 lesions (PCB group) and DES in 137 lesions (DES group). The figure shows the angiographic midterm results of the 422 lesions and late-term results of the 337 lesions with respect to each tissue morphology and each PCI device. There was no difference in ISR and TLR rates of lesions with both fibrous and lipid-laden plaque at midterm between the two groups. ISR and TLR rates of lesions with lipid-laden plaque at late-term were significantly higher in the PCB group than in the DES group, while there was no difference in ISR and TLR rates of lesions with fibrous plaque at late-term between two groups.
Figure 1
Conclusion
Tissue morphology of ISR lesions might have an impact on outcomes after PCI. Morphological assessment of ISR tissue using OCT might suggest favorable types of PCI for ISR lesions.
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Affiliation(s)
- T Tada
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - K Miura
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - M Ohya
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - T Shimada
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - R Murai
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - H Amano
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - S Kubo
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - S Habara
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - H Tanaka
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - Y Fuku
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
| | - K Kadota
- Kurashiki Central Hospital, Cardiology Department, Kurashiki, Japan
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Kira S, Abe I, Teshima Y, Ishii Y, Miyoshi M, Oniki T, Fukui A, Shinohara T, Shimada T, Yufu K, Nakagawa M, Takahashi N. P1628Angiopoietin-like protein (Angptl) 2 secreted from epicardial adipose tissue induces atrial myocardial fibrosis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Using excised human left atrial appendage samples, we previously demonstrated that epicardial adipose tissue (EAT) are highly associated with atrial myocardial fibrosis as a substrate of atrial fibrillation (AF). We also reported the relationship between Angptl2 in EAT and atrial fibrosis. However, the mechanism is not clear. The purpose is to clarify the mechanisms underlying the effect of EAT on the atrial myocardium.
Methods
Human peri-left atrial EAT and abdominal subcutaneous adipose tissue (SAT) samples were obtained from 6 cases (2 females, 70.2±13.2 years). 50 mg of EAT and SAT were quickly washed with PBS and centrifuged 1min at 1200rpm. After 3 times this procedures, adipose tissues were cultured in DMEM F12 medium with Fetal bovine Serum (FBS) overnight.
After pre-incubation, EAT and SAT tissues were washed and centrifuge d three times and cultured in medium without FBS for 24hours. Finally, we collected oozed medium (conditioned medium) and used for experiments.
Concentrations of Angptl2 in conditioned medium were measured by ELISA.
To study the effects of conditioned medium, we used “organo-culture” system. Isolated atrium from 8week old male Sprague-Dawley rats were placed on the porous membrane with the endothelial face toward the membrane. After that, loading medium (conditioned medium:culture medium = 1:4), culture medium (control), or recombinant Angptl2 were dropped onto the epicardial face of the atrium once a day and incubated for 7 days (37°C, 5% CO2).
Then, histological and immunohistochemical analysis were performed. We also performed quantitative reverse transcription–polymerase chain reaction (RT–PCR) analysis.
Next, we isolated and cultured neonatal rat fibroblast and loaded Angptl2 for 24 hours.After collected these cells, we performed western blotting analysis.
Results
Atria organo-culture incubated for 7 days with conditioned medium showed global fibrosis. At epicardial side, fibrotic area of EAT group was significantly greater compared to that of SAT and control group (P<0.05).
mRNA of Col1a1, col3a1 and TGFβ1 were significantly increased in EAT group compared with the SAT and control group.
And, the concentration of conditioned medium created from EAT was significant higher than that from SAT (P<0.05).
Then, we dropped 500 ng/ml of recombinant Angptl2 onto the rat atria. Fibrotic area of Angptl22 group significantly greater than that of control with increasing number of α-SMA positive cells, and mRNA of col3a1 and TGFβ1 were significantly increased in Angptl2 group compared with control group.
In cultured fibroblasts, α-SMA and p-ERK expression were increased in Angptl2 group measured by western blotting analysis.
Conclusions
Our results demonstrated that EAT rather than SAT induces atrial myocardial fibrosis. There is a possibility that Angptl2 effused from EAT plays a part in atrial fibrosis thought EAT paracrine effect.
Acknowledgement/Funding
ONO PHARMACEUTICAL CO
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Affiliation(s)
- S Kira
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - I Abe
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - Y Teshima
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - Y Ishii
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - M Miyoshi
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - T Oniki
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - A Fukui
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - T Shinohara
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - T Shimada
- Oita College of Judo Therapy & Acupuncture & Moxibustion, Oita, Japan
| | - K Yufu
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
| | - M Nakagawa
- Oita University, Medical Education Center, Yufu, Japan
| | - N Takahashi
- Oita University, Cardiology and Clinical Examination, Yufu, Japan
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Takagi S, Arakawa K, Shimada T, Inoue H. Reversed Micelles Formed by Polyfluorinated Surfactant II; the Properties of Core Water Phase in Reversed Micelle. BCSJ 2019. [DOI: 10.1246/bcsj.20190086] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shinsuke Takagi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Kyosuke Arakawa
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Haruo Inoue
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
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Yamamoto T, Takigawa T, Fujimura T, Shimada T, Ishida T, Inoue H, Takagi S. Which types of clay minerals fix cesium ions effectively? the "cavity-charge matching effect". Phys Chem Chem Phys 2019; 21:9352-9356. [PMID: 30994658 DOI: 10.1039/c9cp00457b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
How can radioactive Cs+ ions be removed from aqueous solution? From this perspective, the adsorption of Cs+ was investigated by using five types of clay minerals possessing different charge exchange capacities. The fixation ability for Cs+ depended on the charge exchange capacity of the clay minerals. Phlogopite and vermiculite, where the number of charges is almost equal to half the number of siloxane ditrigonal cavities in the structure, exhibited a strong Cs+ fixation ability among these clay minerals. In these clay minerals, effective interlayer collapse, which leads to quasi-irreversible adsorption of Cs+, is expected from the introduction of Cs+ into the layer space. This is named the "cavity-charge matching effect". This study clarifies why only phlogopite and vermiculite can fix Cs+ quite strongly among various types of clay minerals. These findings are beneficial for removing radioactive Cs+ ions from the environment using clay minerals through the cavity-charge matching effect.
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Affiliation(s)
- Takahiro Yamamoto
- Japan Atomic Energy Agency, 765-1 Funaishikawa, Tokai-mura, Naka-gun, Ibaraki 319-1184, Japan
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