1
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Kageyama A, Tsuchiya M, Terakawa J, Ito J, Kashiwazaki N. A combined treatment with progesterone, anti-inhibin serum, and equine chorionic gonadotropin improves number of ovulated oocytes in young C57BL/6J mice. J Reprod Dev 2023; 69:223-226. [PMID: 37331813 PMCID: PMC10435527 DOI: 10.1262/jrd.2023-036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/24/2023] [Indexed: 06/20/2023] Open
Abstract
Superovulation procedures are routinely and widely used in mouse reproductive technology. Previous studies have shown that a large number of oocytes can be obtained from adult mice (> 10 weeks old) using a combined treatment with progesterone (P4) and anti-inhibin serum (AIS). However, these effects have not been fully investigated in young (4 weeks) C57BL/6J mice. Here, we found that a modified superovulation protocol (combined treatment with P4, AIS, eCG (equine chorionic gonadotropin), and hCG (human chorionic gonadotropin); P4D2-Ae-h) improved the number of oocytes compared to the control (eCG and hCG) (39.7 vs. 21.3 oocytes/mouse). After in vitro fertilization, pronuclear formation rates were 69.3% (P4D2-Ae-h group) and 66.2% (control group). After embryo transfer, 46.4% (116/250) of the embryos in the P4D2-Ae-h group successfully developed to term, which was comparable to the control group (42.9%; 123/287 embryos). In conclusion, our protocol (P4D2-Ae-h) was effective for superovulation in young C57BL/6J mice.
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Affiliation(s)
- Atsuko Kageyama
- Laboratory of Animal Reproduction, Graduate School of Veterinary Sciences, Azabu University, Sagamihara 252-5201, Japan
| | - Mizuho Tsuchiya
- School of Veterinary Medicine, Azabu University, Sagamihara 252-5201, Japan
| | - Jumpei Terakawa
- Laboratory of Toxicology, School of Veterinary Medicine, Azabu University, Sagamihara 252-5201, Japan
| | - Junya Ito
- Laboratory of Animal Reproduction, Graduate School of Veterinary Sciences, Azabu University, Sagamihara 252-5201, Japan
- School of Veterinary Medicine, Azabu University, Sagamihara 252-5201, Japan
- Center for Human and Animal Symbiosis Science, Azabu University, Sagamihara 252-5201, Japan
| | - Naomi Kashiwazaki
- Laboratory of Animal Reproduction, Graduate School of Veterinary Sciences, Azabu University, Sagamihara 252-5201, Japan
- School of Veterinary Medicine, Azabu University, Sagamihara 252-5201, Japan
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2
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Nishi Y, Murakami Y, Teshima S, Tsukano K, Otsuka M, Hirata H, Tsuchiya M, Suzuki K. Endotoxin activity and leukocytic STAT3 mRNA alterations differ according to age in lipopolysaccharide-challenged calves. Res Vet Sci 2022; 152:300-306. [DOI: 10.1016/j.rvsc.2022.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/27/2022]
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3
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Mito T, Kawakami H, Ikoma T, Ukai Y, Tsuchiya M, Kubo E, Sasaki H. Positive dysphotopsia after intrascleral intraocular lens fixation: a case report. BMC Ophthalmol 2022; 22:263. [PMID: 35690806 PMCID: PMC9188193 DOI: 10.1186/s12886-022-02474-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: 03/17/2022] [Accepted: 06/01/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Positive dysphotopsia is a symptom caused by the reflection of incident light through the pupil at the inner surface of the intraocular lens (IOL) edge after cataract surgery and is perceived as an abnormal arcuate or radiating photopic image at night or indoors with a light source. Although positive dysphotopsia is one of the most important symptoms that affect patients after cataract surgery, it is still not well known even among ophthalmologists. Positive dysphotopsia as the cause of patient complaint following intraocular surgery other than cataract surgery has not been identified. CASE PRESENTATION A 52-year-old man underwent IOL extraction and intrascleral IOL fixation for bilateral IOL subluxation at another hospital. The right eye had good subjective visibility, but the patient noticed symptoms of light sources appearing divided into multiple lights indoors after surgery in the left eye. Because the cause of the symptoms could not be identified, the patient visited our department. At the time of his first visit, the corrected visual acuity in both eyes was good, and ocular findings in eye position, motility, intraocular pressure, and fundus were within normal limits. The elongated holes of peripheral iridectomy (PI) created during previous intrascleral IOL fixation were observed to be approximately 2 mm in length on the nasal side in both eyes. The PI hole in the right eye was covered by the optics of the IOL, whereas the edge of the IOL overlapped the center of the PI hole in the left eye. Accordingly, we concluded that the abnormal photopic image in the left eye was caused by positive dysphotopsia, in which light passing through the PI hole was reflected by the edge of the IOL. We attempted surgical closure of the PI hole, resulting in the complete disappearance of positive dysphotopsia. CONCLUSIONS A PI hole created during intrascleral IOL fixation may cause postoperative positive dysphotopsia depending on the position of the IOL edge. Thus, surgeons should be aware of the importance of the size and location of the PI hole when creating it during surgery.
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Affiliation(s)
- Tsuyoshi Mito
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-Gun, Ishikawa, 920 -0293, Kanzawa, Japan.
| | - Honoka Kawakami
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-Gun, Ishikawa, 920 -0293, Kanzawa, Japan
| | - Toru Ikoma
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-Gun, Ishikawa, 920 -0293, Kanzawa, Japan
| | - Yuki Ukai
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-Gun, Ishikawa, 920 -0293, Kanzawa, Japan
| | | | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-Gun, Ishikawa, 920 -0293, Kanzawa, Japan
| | - Hiroshi Sasaki
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-Gun, Ishikawa, 920 -0293, Kanzawa, Japan
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4
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Fujii H, Kitazume Y, Uozumi R, Iihara H, Takahashi M, Arai T, Yoshizawa T, Murachi Y, Sato Y, Mikami T, Hashiguchi K, Takahashi K, Fujita Y, Yamazaki T, Hosokawa Y, Morozumi I, Tsuchiya M, Yokoyama A, Hashimoto H, Yamaguchi M. 498P Association between capecitabine efficacy and proton pump inhibitors in patients with stage II-III colorectal cancer: A retrospective multicenter study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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5
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Tsuchiya M. Imaging of electrostatic field vector distribution. Rev Sci Instrum 2021; 92:053704. [PMID: 34243291 DOI: 10.1063/5.0034052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 04/22/2021] [Indexed: 06/13/2023]
Abstract
This paper reports on the visualization of a two-dimensional distribution of electrostatic field vectors around an electrified object using the electric field imager (EFIM) device. The EFIM device is made of a virtually connected pair of plate electrodes in parallel and in proximity, between which an electronic circuit for detection and optical indication is embedded. The EFIM device is not only accurately sensitive to the electrostatic field but also possessed of agility and mobility together with directivity and noninvasiveness. It was successfully demonstrated that electrostatic field vectors were visualized quantitatively, and their spatial distributions were mapped in combination with rather simple, mobile, and low-cost equipment. The advantages and disadvantages of the EFIM visualization scheme are discussed together with the future prospect of the EFIM device.
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Affiliation(s)
- M Tsuchiya
- National Institute of Information and Communications Technology, 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan
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6
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Tsuchiya M, Nagasaka Y, Sakaguchi C, Ishida M, Suzumoto J. POSTURAL CHANGES OF FINE CRACKLES IN PATIENTS WITH INTERSTITIAL PNEUMONIA. Chest 2020. [DOI: 10.1016/j.chest.2020.05.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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7
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Miyagawa Y, Kikuchi K, Tsuchiya M, Adachi S. A statistical model for activation of Factor C by binding to LPS aggregates. Eur Biophys J 2019; 48:743-747. [PMID: 31630219 DOI: 10.1007/s00249-019-01400-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Published data on Factor C activity at various LPS and Lipid A concentrations (Nakamura et al. in Eur J Biochem 176:89, 1988; Kobayashi et al. in J Biol Chem 37:25987, 2014) were rearranged to show that Factor C exhibited its maximum activity at a specific concentration of LPS. A statistical model was proposed for examining whether a single LPS molecule binding activates Factor C (monomeric activation) or dimerization of Factor C is necessary for the activation (dimeric activation). In the monomeric activation model the plots of the relative activity of Factor C against the molar ratio of LPS to Factor C were different from those in the published data. The plots in the dimeric activation model lie on a bell-shaped curve, whatever the Factor C concentration, matching the published data and indicating the appropriateness of that model. We suggest that Factor C is activated by multiple molecular interactions of Factor C with LPS aggregates on which it dimerises and that this explains why larger aggregates are less effective at activating Factor C than smaller ones.
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Affiliation(s)
- Y Miyagawa
- Faculty of Bioenvironmental Science, Kyoto Gakuen University, 1-1 Nanjo-Ohtani, Sogabe-cho, Kameoka, Kyoto, 621-8555, Japan
| | - K Kikuchi
- Faculty of Liberal Studies, National Institute of Technology Kumamoto College, 2659-2 Suya, Koshi, Kumamoto, 861-1102, Japan
| | - M Tsuchiya
- Microbial Solutions, Charles River, 1023 Wappoo Road, Suite 43B, Charleston, SC, 29407, USA
| | - S Adachi
- Faculty of Bioenvironmental Science, Kyoto Gakuen University, 1-1 Nanjo-Ohtani, Sogabe-cho, Kameoka, Kyoto, 621-8555, Japan.
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8
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Toyoda R, Sakamoto R, Fukui N, Matsuoka R, Tsuchiya M, Nishihara H. A single-stranded coordination copolymer affords heterostructure observation and photoluminescence intensification. Sci Adv 2019; 5:eaau0637. [PMID: 30613768 PMCID: PMC6314875 DOI: 10.1126/sciadv.aau0637] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
Few artificial systems can be exfoliated into, and observed as, single wires with lengths of more than several micrometers, and no previous example features a copolymer structure; this is in contrast with biopolymers such as single-strand DNAs. Here, we create a set of one-dimensional coordination copolymers featuring bis(dipyrrinato)zinc complex motifs in the main chain. A series of random copolymers is synthesized from two types of bridging dipyrrin proligand and zinc acetate, with various molar ratios between the proligands. Sonication of the bulk solid copolymer in organic solvent exfoliates single strands with lengths of 1.4 to 3.0 μm. Atomic force microscopy at ambient conditions visualizes the copolymer structure as height distributions. The copolymer structure improves its photoluminescence (up to 32%) relative to that of the corresponding homopolymers (3 and 10%). Numerical simulation based on a restricted random walk model reproduces the photoluminescence intensification, suggesting at the same time the existence of fast intrawire exciton hopping.
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Affiliation(s)
- Ryojun Toyoda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Naoya Fukui
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryota Matsuoka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mizuho Tsuchiya
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroshi Nishihara
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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9
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Tateno K, Ogawa R, Sakamoto R, Tsuchiya M, Kutsumura N, Otani T, Ono K, Kawai H, Saito T. Dibenzopyrrolo[1,2-a][1,8]naphthyridines: Synthesis and Structural Modification of Fluorescent L-Shaped Heteroarenes. J Org Chem 2017; 83:690-702. [DOI: 10.1021/acs.joc.7b02674] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Kotaro Tateno
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Rie Ogawa
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Ryota Sakamoto
- Department
of Chemistry, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mizuho Tsuchiya
- Department
of Chemistry, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Noriki Kutsumura
- International
Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Takashi Otani
- Course
of Chemical Engineering, National Institute of Technology, Anan Collage,
265 Aoki, Minobayashi, Tokushima 774-0017, Japan
| | - Kosuke Ono
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Hidetoshi Kawai
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takao Saito
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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10
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Shindo K, Sato T, Satake A, Kurita N, Tsuchiya M, Ichinose Y, Hata T, Koh K, Yamashiro N, Kobayashi F, Nagasaka T, Takiyama Y. Skin vasomotor regulation in patients with multiple system atrophy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2588] [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: 11/24/2022]
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11
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Nagasaka T, Hata T, Ichinose Y, Kho K, Yamashiro N, Tsuchiya M, Takaki R, Shindo K, Takiyama Y. Morphological features of mitochondria in anti-mitochondrial antibodies-positive myositis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Matsumoto Y, Shakespear N, Tsuchiya M, Kaneko C, Kubo J, Ogawa R, Kaneko K, Takahashi T, Yamamoto T, Fujihara K. Myelin olygodendorocyte glycoprotein-antybody-associated neurologic disease – an adult case series at a Fukushima Hospital. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Ogino Y, Kusamoto T, Hattori Y, Shimada M, Tsuchiya M, Yamanoi Y, Nishibori E, Sugimoto K, Nishihara H. Solvent-Controlled Doublet Emission of an Organometallic Gold(I) Complex with a Polychlorinated Diphenyl(4-pyridyl)methyl Radical Ligand: Dual Fluorescence and Enhanced Emission Efficiency. Inorg Chem 2017; 56:3909-3915. [PMID: 28294604 DOI: 10.1021/acs.inorgchem.6b02864] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A paramagnetic, luminescent organometallic gold(I) complex AuI(C6F5)(PyBTM), where PyBTM is a photostable fluorescent polychlorinated diphenyl(4-pyridyl)methyl radical, was prepared, and its crystal and electronic structures and magnetic and optical properties were investigated. Magnetic studies using electron spin resonance spectroscopy and a superconducting quantum interference device magnetometer indicated the existence of S = 1/2 spin per molecule, with the spin density distributed mainly on the PyBTM ligand. The complex exhibited fluorescence in CHCl3 with emission peak wavelength (λem) of 619 nm and the absolute fluorescence quantum yield (ϕem) of 0.04, confirming that AuI(C6F5)(PyBTM) is the first luminescent organometallic complex with a coordinated luminescent radical. Solvent-dependent unique luminescent characteristics were observed in halogenated solvents (CCl4, CHCl3, CH2Cl2, and ClCH2CH2Cl). ϕem decreased, and λem shifted to longer wavelengths as the polarity (dielectric constant) of the solvent increased. Notably, the complex in CCl4 displayed fluorescence with ϕem = 0.23, which was quite high in radicals, while showed dual fluorescence in CH2Cl2 and ClCH2CH2Cl with lifetimes of around 1 and 7 ns for two emissive components. Density functional theory (DFT) and time-dependent (TD)-DFT calculations indicated that the fluorescence occurred from an interligand charge transfer (CT) excited state in CCl4, in which the C6F5 and PyBTM moieties acted as electron donor and acceptor, respectively, while the fluorescence was centered at the PyBTM ligand in the other three solvents. This method, i.e., the formation of an interligand CT state, to enhance ϕem is distinctly different from the methods reported previously. The present study revealed that a coordination bond is available for forming emissive CT excited states that lead to high ϕem, providing a novel method with greater capability for realizing highly emissive radicals.
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Affiliation(s)
- Yasuyo Ogino
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tetsuro Kusamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yohei Hattori
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masaki Shimada
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mizuho Tsuchiya
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoshinori Yamanoi
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Eiji Nishibori
- Division of Physics, Faculty of Pure and Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS) &, Center for Integrated Research in Fundamental Science and Engineering (CiRfSE), University of Tsukuba , Tsukuba, Ibaraki 305-8571, Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI) , Sayo-gun, Hyogo 679-5148, Japan
| | - Hiroshi Nishihara
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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14
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Tsuchiya M, Sakamoto R, Shimada M, Yamanoi Y, Hattori Y, Sugimoto K, Nishibori E, Nishihara H. β-IminoBODIPY oligomers: facilely accessible π-conjugated luminescent BODIPY arrays. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc03279j] [Citation(s) in RCA: 10] [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: 01/29/2023]
Abstract
A combination of imine-BODIPY chemistry was employed to fabricate luminescent π-conjugated BODIPY oligomers and BODIPY-functionalized silica gel.
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Affiliation(s)
- Mizuho Tsuchiya
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Ryota Sakamoto
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Masaki Shimada
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Yoshinori Yamanoi
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Yohei Hattori
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | | | - Eiji Nishibori
- Division of Physics
- Faculty of Pure and Applied Sciences
- Tsukuba Research Center for Interdisciplinary Materials Science (TIMS) & Center for Integrated Research in Fundamental Science and Engineering (CiRfSE)
- University of Tsukuba
- Tsukuba
| | - Hiroshi Nishihara
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
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15
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Ajimizu H, Ozasa H, Sato S, Sakamori Y, Funazo T, Yasuda Y, Nomizo T, Tsuji T, Yoshida H, Yagi Y, Nagai H, Sato A, Tsuchiya M, Muro S, Nagasaka Y, Mishima M, Kim Y. Survival impact of treatment for chronic obstructive pulmonary disease in patients with advanced non-small cell lung cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw384.20] [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: 11/12/2022] Open
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16
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Tsuchiya M, Sakamoto R, Shimada M, Yamanoi Y, Hattori Y, Sugimoto K, Nishibori E, Nishihara H. Bis(dipyrrinato)zinc(II) Complexes: Emission in the Solid State. Inorg Chem 2016; 55:5732-4. [PMID: 27267265 DOI: 10.1021/acs.inorgchem.6b00431] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This Communication reports the first observation of solid-state photoluminescence in bis(dipyrrinato)zinc(II) complexes with various substituents. The report discusses the effect of their substituents on their crystal structures and spectroscopic properties. Their meso-aryl groups are revealed to play important roles in the spectroscopic properties in the solid state.
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Affiliation(s)
- Mizuho Tsuchiya
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,JST-PRESTO , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Masaki Shimada
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoshinori Yamanoi
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yohei Hattori
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI) , 1-1-1 Koto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Eiji Nishibori
- Division of Physics, Faculty of Pure and Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science, and Center for Integrated Research in Fundamental Science and Engineering, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Hiroshi Nishihara
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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17
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Sakamoto R, Iwashima T, Kögel JF, Kusaka S, Tsuchiya M, Kitagawa Y, Nishihara H. Dissymmetric Bis(dipyrrinato)zinc(II) Complexes: Rich Variety and Bright Red to Near-Infrared Luminescence with a Large Pseudo-Stokes Shift. J Am Chem Soc 2016; 138:5666-77. [DOI: 10.1021/jacs.6b02128] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ryota Sakamoto
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- JST-PRESTO, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Toshiki Iwashima
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Julius F. Kögel
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shinpei Kusaka
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mizuho Tsuchiya
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yasutaka Kitagawa
- Division
of Chemical Engineering, Department of Materials Engineering Science,
Graduate School of Engineering Science, Osaka University, 1-3,
Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Hiroshi Nishihara
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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18
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Hamada T, Tsuchiya M, Mizutani K, Takahashi R, Muguruma K, Maeda K, Ueda W, Nishikawa K. Levobupivacaine-dextran mixture for transversus abdominis plane block and rectus sheath block in patients undergoing laparoscopic colectomy: a randomised controlled trial. Anaesthesia 2016; 71:411-6. [PMID: 26919568 DOI: 10.1111/anae.13408] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2016] [Indexed: 11/29/2022]
Abstract
We performed a randomised controlled double-blinded study of patients having laparoscopic colectomy with bilateral transversus abdominis plane block plus rectus sheath block, comparing a control group receiving 80 ml levobupivacaine 0.2% in saline with a dextran group receiving 80 ml levobupivacaine 0.2% in 8% low-molecular weight dextran. Twenty-seven patients were studied in each group. The mean (SD) maximum plasma concentration of levobupivacaine in the control group (1410 (322) ng.ml(-1) ) was higher than the dextran group (1141 (287) ng.ml(-1) ; p = 0.004), and was reached more quickly (50.6 (30.2) min vs 73.2 (24.6) min; p = 0.006). The area under the plasma concentration-time curve from 0 min to 240 min in the control group (229,124 (87,254) ng.min.ml(-1) ) was larger than in the dextran group (172,484 (50,502) ng.min.ml(-1) ; p = 0.007). The median (IQR [range]) of the summated numerical pain rating score at rest during the first postoperative 24 h in the control group (16 (9-20 [3-31]) was higher than in the dextran group (8 (2-11 [0-18]); p = 0.0001). In this study, adding dextran to levobupivacaine decreased the risk of levobupivacaine toxicity while providing better analgesia.
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Affiliation(s)
- T Hamada
- Department of Anesthesiology, Osaka City University Medical School, Osaka, Japan
| | - M Tsuchiya
- Department of Anesthesiology, Osaka City University Medical School, Osaka, Japan
| | - K Mizutani
- Operating Theatre, Osaka Rosai Hospital, Sakai, Japan
| | - R Takahashi
- Department of Anesthesia, First Towakai Hospital, Osaka, Japan
| | - K Muguruma
- Department of Surgical Oncology, Osaka City University Medical School, Osaka, Japan
| | - K Maeda
- Department of Surgical Oncology, Osaka City University Medical School, Osaka, Japan
| | - W Ueda
- Department of Anesthesiology and Intensive Care Medicine, Kochi Medical School, Kochi, Japan
| | - K Nishikawa
- Department of Anesthesiology, Osaka City University Medical School, Osaka, Japan
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19
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Shimada M, Tsuchiya M, Sakamoto R, Yamanoi Y, Nishibori E, Sugimoto K, Nishihara H. Bright Solid‐State Emission of Disilane‐Bridged Donor–Acceptor–Donor and Acceptor–Donor–Acceptor Chromophores. Angew Chem Int Ed Engl 2016; 55:3022-6. [DOI: 10.1002/anie.201509380] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 12/09/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Masaki Shimada
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Mizuho Tsuchiya
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Sakamoto
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yoshinori Yamanoi
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Eiji Nishibori
- Division of Physics Faculty of Pure and Applied Sciences Tsukuba Research Center for Interdisciplinary Materials Science (TIMS) & Center for Integrated Research in Fundamental Science and Engineering (CiRfSE) University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305–8571 Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI) 1-1-1 Koto, Sayo-cho Sayo-gun Hyogo 679–5198 Japan
| | - Hiroshi Nishihara
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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20
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Shimada M, Tsuchiya M, Sakamoto R, Yamanoi Y, Nishibori E, Sugimoto K, Nishihara H. Bright Solid‐State Emission of Disilane‐Bridged Donor–Acceptor–Donor and Acceptor–Donor–Acceptor Chromophores. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201509380] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Masaki Shimada
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Mizuho Tsuchiya
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Sakamoto
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yoshinori Yamanoi
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Eiji Nishibori
- Division of Physics Faculty of Pure and Applied Sciences Tsukuba Research Center for Interdisciplinary Materials Science (TIMS) & Center for Integrated Research in Fundamental Science and Engineering (CiRfSE) University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305–8571 Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI) 1-1-1 Koto, Sayo-cho Sayo-gun Hyogo 679–5198 Japan
| | - Hiroshi Nishihara
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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21
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Niwa T, Watanabe T, Suzuki K, Hayashi H, Ohta H, Nakayama A, Tsuchiya M, Yasuda K, Murakami N, Itoh Y. Early optimization of antimicrobial therapy improves clinical outcomes of patients administered agents targeting methicillin-resistant Staphylococcus aureus. J Clin Pharm Ther 2015; 41:19-25. [PMID: 26678686 DOI: 10.1111/jcpt.12341] [Citation(s) in RCA: 3] [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: 10/05/2015] [Accepted: 11/15/2015] [Indexed: 12/01/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Antimicrobial stewardship is required to ensure the appropriate use of antimicrobials. However, no reports have been published on clinical outcomes of implementation of antimicrobial stewardship in patients receiving pathogen-specific antibiotics. METHOD To evaluate the clinical outcomes of patients who received drugs, we conducted a single-centre, retrospective study of the effects of an antimicrobial stewardship programme targeting methicillin-resistant Staphylococcus aureus (MRSA). RESULTS The time to administer effective antimicrobials was significantly (median number of days, 3 before vs. 0 after, P < 0·001) shortened, and the rate of de-escalation was significantly elevated (47·1% vs. 96·2%, P < 0·001) after implementation of daily review. The 60-day clinical failure associated with Gram-positive bacterial infection was significantly reduced (33·3% vs. 17·6%, P = 0·007) after intervention. WHAT IS NEW AND CONCLUSIONS Daily review of administration of antimicrobials targeting MRSA was highly effective in improving clinical outcomes by optimizing early antimicrobial therapy.
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Affiliation(s)
- T Niwa
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan.,Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - T Watanabe
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - K Suzuki
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - H Hayashi
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - H Ohta
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - A Nakayama
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - M Tsuchiya
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - K Yasuda
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - N Murakami
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - Y Itoh
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
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22
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Kögel JF, Kusaka S, Sakamoto R, Iwashima T, Tsuchiya M, Toyoda R, Matsuoka R, Tsukamoto T, Yuasa J, Kitagawa Y, Kawai T, Nishihara H. Heteroleptic [Bis(oxazoline)](dipyrrinato)zinc(II) Complexes: Bright and Circularly Polarized Luminescence from an Originally Achiral Dipyrrinato Ligand. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509411] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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)
- Julius F. Kögel
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shinpei Kusaka
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Sakamoto
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- JST PRESTO; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Toshiki Iwashima
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Mizuho Tsuchiya
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryojun Toyoda
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Matsuoka
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Takamasa Tsukamoto
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Junpei Yuasa
- JST PRESTO; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5, Takayama Ikoma Nara 630-0192 Japan
| | - Yasutaka Kitagawa
- Division of Chemical Engineering, Department of Materials Engineering Science; Graduate School of Engineering Science; Osaka University; 1-3, Machikaneyama, Toyonaka Osaka 560-8531 Japan
| | - Tsuyoshi Kawai
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5, Takayama Ikoma Nara 630-0192 Japan
| | - Hiroshi Nishihara
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- JST CREST; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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23
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Kögel JF, Kusaka S, Sakamoto R, Iwashima T, Tsuchiya M, Toyoda R, Matsuoka R, Tsukamoto T, Yuasa J, Kitagawa Y, Kawai T, Nishihara H. Heteroleptic [Bis(oxazoline)](dipyrrinato)zinc(II) Complexes: Bright and Circularly Polarized Luminescence from an Originally Achiral Dipyrrinato Ligand. Angew Chem Int Ed Engl 2015; 55:1377-81. [DOI: 10.1002/anie.201509411] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Julius F. Kögel
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shinpei Kusaka
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Sakamoto
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- JST PRESTO; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Toshiki Iwashima
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Mizuho Tsuchiya
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryojun Toyoda
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Matsuoka
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Takamasa Tsukamoto
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Junpei Yuasa
- JST PRESTO; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5, Takayama Ikoma Nara 630-0192 Japan
| | - Yasutaka Kitagawa
- Division of Chemical Engineering, Department of Materials Engineering Science; Graduate School of Engineering Science; Osaka University; 1-3, Machikaneyama, Toyonaka Osaka 560-8531 Japan
| | - Tsuyoshi Kawai
- Graduate School of Materials Science; Nara Institute of Science and Technology (NAIST); 8916-5, Takayama Ikoma Nara 630-0192 Japan
| | - Hiroshi Nishihara
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- JST CREST; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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24
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Yusup A, Kaneko H, Liu L, Ning L, Sadatsuki R, Hada S, Kamagata K, Kinoshita M, Futami I, Shimura Y, Tsuchiya M, Saita Y, Takazawa Y, Ikeda H, Aoki S, Kaneko K, Ishijima M. Bone marrow lesions, subchondral bone cysts and subchondral bone attrition are associated with histological synovitis in patients with end-stage knee osteoarthritis: a cross-sectional study. Osteoarthritis Cartilage 2015; 23:1858-64. [PMID: 26028139 DOI: 10.1016/j.joca.2015.05.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 05/16/2015] [Accepted: 05/20/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim of this study was to examine the osteoarthritis (OA)-related structural changes associated with histological synovitis in end-stage knee OA patients. METHODS Forty end-stage knee OA patients (female: 88%, mean age: 71.8 y) were enrolled. All participants underwent 3.0-T MRI. The structural changes, such as cartilage morphology, subchondral bone marrow lesion (BML), subchondral bone cyst (SBC), subchondral bone attrition (SBA), osteophytes, meniscal lesion and synovitis, were scored using the whole-organ MRI scoring (WORMS) method. Synovial samples were obtained from five regions of interest (ROIs) of the knee joint during total joint replacement surgery. The associations between the histological synovitis score (HSS) and WORMS or the synovial expression levels of cyclooxygenase (COX)-2, interleukin (IL)-1β, IL-6 and transforming growth factor (TGF)-β were examined using Spearman's correlation coefficient. RESULTS Among the seven OA-related structural changes, the BML, SBC, SBA and synovitis were significantly associated with the HSS (r = 0.33, 0.35, 0.48 and 0.36, respectively), while other morphological changes were not. Although synovial COX-2, IL-1β or IL-6 expression levels were not associated with the HSS, the synovial TGF-β expression levels were associated with the HSS. CONCLUSION The presence of BML, SBC and SBA was associated with histological synovitis in end-stage knee OA patients.
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Affiliation(s)
- A Yusup
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan; Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - H Kaneko
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - L Liu
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan; Sportology Center, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - L Ning
- Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - R Sadatsuki
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - S Hada
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - K Kamagata
- Department of Radiology, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - M Kinoshita
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - I Futami
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Y Shimura
- Department of Orthopedics, Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan.
| | - M Tsuchiya
- Department of Orthopedics, Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan.
| | - Y Saita
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Y Takazawa
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - H Ikeda
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - S Aoki
- Department of Radiology, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - K Kaneko
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan; Sportology Center, Juntendo University Graduate School of Medicine, Tokyo, Japan; Department of Pathophysiology for Locomotive and Neoplastic Diseases, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - M Ishijima
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, Tokyo, Japan; Sportology Center, Juntendo University Graduate School of Medicine, Tokyo, Japan; Department of Pathophysiology for Locomotive and Neoplastic Diseases, Juntendo University Graduate School of Medicine, Tokyo, Japan.
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Nemoto E, Sakisaka Y, Tsuchiya M, Tamura M, Nakamura T, Kanaya S, Shimonishi M, Shimauchi H. Wnt3a signaling induces murine dental follicle cells to differentiate into cementoblastic/osteoblastic cells via an osterix-dependent pathway. J Periodontal Res 2015; 51:164-74. [PMID: 26095156 DOI: 10.1111/jre.12294] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Dental follicle cells, putative progenitor cells for cementoblasts, osteoblasts and periodontal ligament cells, interplay with Hertwig's epithelial root sheath (HERS) cells during tooth root formation, in which HERS is considered to have an inductive role in initiating cementogenesis by epithelial-mesenchymal interaction. However, the specific mechanisms controlling the cementoblast/osteoblast differentiation of dental follicle cells are not fully understood. Canonical Wnt signaling has been implicated in increased bone formation by controlling mesenchymal stem cell or osteoblastic cell functions. This study examined the possible expression of canonical Wnt ligand in HERS and the role of Wnt signaling during the cementoblast/osteoblast differentiation of dental follicle cells. MATERIAL AND METHODS The expression of Wnt3a, a representative canonical Wnt ligand, in HERS was assessed by immunohistochemistry. The differentiation and function of immortalized murine dental follicle cells were evaluated by measuring alkaline phosphatase (ALP, Alpl) activity and osteogenic gene expression. RESULTS We identified the expression of Wnt3a in HERS during mouse tooth root development by immunohistochemistry as well as in cultured human epithelial rest cells of Malassez by real-time polymerase chain reaction, while no expression of Wnt3a was detected in cultured dental mesenchymal cells. Exposure of immortalized murine dental follicle cells to Wnt3a-induced ALP activity as well as expression of the Alpl gene. Pretreatment of cells with Dickkopf-1, a potent canonical Wnt antagonist, markedly attenuated the effect of Wnt3a on ALP expression. Furthermore, Wnt3a induced transcriptional activity of runt-related transcription factor 2 (Runx2) and expression of osterix at gene and/or protein levels. Treatment with osterix-small interfering RNA significantly inhibited Wnt3a-induced ALP expression at gene and protein levels. CONCLUSION These findings suggest that HERS has a potential role in stimulating cementoblast/osteoblast differentiation of dental follicle cells via the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- E Nemoto
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Y Sakisaka
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - M Tsuchiya
- Department of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Tohoku Fukushi University, Sendai, Japan
| | - M Tamura
- Department of Biochemistry and Molecular Biology, Hokkaido University Graduate School of Dentistry, Sapporo, Japan
| | - T Nakamura
- Department of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - S Kanaya
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - M Shimonishi
- Department of Comprehensive Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - H Shimauchi
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
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26
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Shoji N, Kaneta N, Satoh-Kuriwada S, Tsuchiya M, Hashimoto N, Uneyama H, Kawai M, Sasano T. Expression of umami-taste-related genes in the tongue: a pilot study for genetic taste diagnosis. Oral Dis 2015; 21:801-6. [PMID: 25990784 DOI: 10.1111/odi.12350] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 05/01/2015] [Accepted: 05/08/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Expression of taste-related genes in the tongue was analysed to develop a technique for genetic diagnosis of umami taste disorders. MATERIALS AND METHODS Tissue samples were collected from healthy volunteers by scraping the foliate papillae of the tongue. Immunocytochemistry staining of gustducin, a taste-cell-specific G protein, and gene expression analysis by real-time polymerase chain reaction of β-actin, gustducin (GNAT3) and umami receptors (T1R1, T1R3 and mGluR1) were performed. Changes in umami receptor expression following application of umami substances onto the tongue were analysed. RESULTS Gustducin-positive cells were observed in the samples, indicating the presence of taste cells. Gene expression of β-actin, GNAT3, T1R1 and T1R3 was detected in all seven samples tested, while that of mGluR1 was detected in four samples. Sequence analysis by NCBI Blast showed that each polymerase chain reaction product had a 99% rate of identification of its target sequence. Stimulation of the tongue with monosodium glutamate significantly upregulated the gene expression levels of T1R1 and T1R3, indicating that this method can detect alterations in umami-related gene expression. CONCLUSION Evaluation of the expression of the umami receptor genes, T1R1 and T1R3, in the tongue may be clinically useful for objective genetic diagnosis of umami taste disorders.
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Affiliation(s)
- N Shoji
- Division of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - N Kaneta
- Division of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - S Satoh-Kuriwada
- Division of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - M Tsuchiya
- Division of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Tohoku Fukushi University, Sendai, Japan
| | - N Hashimoto
- Division of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - H Uneyama
- Institute for Innovation, Ajinomoto Company Inc., Kawasaki, Tokyo, Japan
| | - M Kawai
- Institute for Innovation, Ajinomoto Company Inc., Kawasaki, Tokyo, Japan
| | - T Sasano
- Division of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Japan
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Hanada S, Zaitsu Y, Tsuchiya M, Miyamoto H, Nishiura R, Nakatsuru K. A new, convenient muscle strength method for evaluating the ability of patients with cardiopulmonary disease to stand up. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3324] [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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Oda M, Azuma T, Watanabe N, Nishizaki Y, Nishida J, Ishii K, Suzuki H, Kaneko H, Komatsu H, Tsukada N, Tsuchiya M. Regulatory Mechanism of Hepatic Microcirculation: Involvement of the Contraction and Dilatation of Sinusoids and Sinusoidal Endothelial Fenestrae1. Progress in Applied Microcirculation 2015. [DOI: 10.1159/000418654] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Sakamoto R, Hoshiko K, Liu Q, Yagi T, Nagayama T, Kusaka S, Tsuchiya M, Kitagawa Y, Wong WY, Nishihara H. A photofunctional bottom-up bis(dipyrrinato)zinc(II) complex nanosheet. Nat Commun 2015; 6:6713. [PMID: 25831973 PMCID: PMC4396372 DOI: 10.1038/ncomms7713] [Citation(s) in RCA: 263] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 02/18/2015] [Indexed: 12/22/2022] Open
Abstract
Two-dimensional polymeric nanosheets have recently gained much attention, particularly top-down nanosheets such as graphene and metal chalcogenides originating from bulk-layered mother materials. Although molecule-based bottom-up nanosheets manufactured directly from molecular components can exhibit greater structural diversity than top-down nanosheets, the bottom-up nanosheets reported thus far lack useful functionalities. Here we show the design and synthesis of a bottom-up nanosheet featuring a photoactive bis(dipyrrinato)zinc(II) complex motif. A liquid/liquid interfacial synthesis between a three-way dipyrrin ligand and zinc(II) ions results in a multi-layer nanosheet, whereas an air/liquid interfacial reaction produces a single-layer or few-layer nanosheet with domain sizes of >10 μm on one side. The bis(dipyrrinato)zinc(II) metal complex nanosheet is easy to deposit on various substrates using the Langmuir-Schäfer process. The nanosheet deposited on a transparent SnO2 electrode functions as a photoanode in a photoelectric conversion system, and is thus the first photofunctional bottom-up nanosheet.
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Affiliation(s)
- Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ken Hoshiko
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Qian Liu
- Institute of Molecular Functional Materials, Department of Chemistry and Partner State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Waterloo Road, Hong Kong, China
| | - Toshiki Yagi
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tatsuhiro Nagayama
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shinpei Kusaka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mizuho Tsuchiya
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yasutaka Kitagawa
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials, Department of Chemistry and Partner State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Waterloo Road, Hong Kong, China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, China
| | - Hiroshi Nishihara
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Matsuoka R, Toyoda R, Sakamoto R, Tsuchiya M, Hoshiko K, Nagayama T, Nonoguchi Y, Sugimoto K, Nishibori E, Kawai T, Nishihara H. Bis(dipyrrinato)metal(ii) coordination polymers: crystallization, exfoliation into single wires, and electric conversion ability. Chem Sci 2015; 6:2853-2858. [PMID: 28706672 PMCID: PMC5489023 DOI: 10.1039/c5sc00273g] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [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: 01/24/2015] [Accepted: 02/26/2015] [Indexed: 11/21/2022] Open
Abstract
The titled coordination polymers feature crystallization, single wire exfoliation, processability, and applicability to photoelectric and thermoelectric conversion systems.
One-dimensional coordination polymers (1D-CPs) tend either to dissociate into constitutive ligands and metals readily in solution, or to aggregate randomly and amorphously, which prevents them from widespread application. In the present research, 1D-CPs comprising bridging dipyrrin ligands and divalent metal ions (Zn2+, Ni2+, and Cu2+) are synthesized. A liquid/liquid interfacial reaction gives rise to single crystals suitable for X-ray diffraction analysis: A dichloromethane solution of the ligand is layered with aqueous metal(ii) acetate, such that the coordination reaction proceeds at the liquid/liquid interface. Isolated single fibers of the zinc coordination polymer may be exfoliated from the single crystal or bulk solid upon ultrasonication. Atomic force microscopy (AFM) detects the isolated fibers with lengths of more than several μm. The exfoliated 1D-CP wires feature good processability, realizing a conjugate with single-wall carbon nanotubes (SWCNTs), and a thin film on a transparent SnO2 electrode. The processed materials show electric conversion ability: For example, the modified SnO2 electrode serves as a photoanode for a photoelectric conversion system. The designability and tunability of the present 1D-CPs is demonstrated by a ligand modification, affording a luminescent property and an extension of the photoelectric conversion response to longer wavelengths.
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Affiliation(s)
- Ryota Matsuoka
- Department of Chemistry , Graduate School of Science , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan . ;
| | - Ryojun Toyoda
- Department of Chemistry , Graduate School of Science , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan . ;
| | - Ryota Sakamoto
- Department of Chemistry , Graduate School of Science , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan . ;
| | - Mizuho Tsuchiya
- Department of Chemistry , Graduate School of Science , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan . ;
| | - Ken Hoshiko
- Department of Chemistry , Graduate School of Science , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan . ;
| | - Tatsuhiro Nagayama
- Department of Chemistry , Graduate School of Science , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan . ;
| | - Yoshiyuki Nonoguchi
- Graduate School of Materials Science , Nara Institute of Science and Technology (NAIST) , 8916-5 Takayama, Ikoma , Nara 630-0192 , Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI) , 1-1-1, Kouto, Sayo-cho , Sayo-gun , Hyogo 679-5198 , Japan
| | - Eiji Nishibori
- Division of Physics , Faculty of Pure and Applied Sciences , Tsukuba Research Center for Interdisciplinary Materials Science (TIMS) , and Center for Integrated Research in Fundamental Science and Engineering (CiRfSE) , University of Tsukuba , 1-1-1 Tennodai , Tsukuba , Ibaraki 305-8571 , Japan
| | - Tsuyoshi Kawai
- Graduate School of Materials Science , Nara Institute of Science and Technology (NAIST) , 8916-5 Takayama, Ikoma , Nara 630-0192 , Japan
| | - Hiroshi Nishihara
- Department of Chemistry , Graduate School of Science , The University of Tokyo , 7-3-1, Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan . ;
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Sakamoto Y, Bidinosti CP, Ichikawa Y, Sato T, Ohtomo Y, Kojima S, Funayama C, Suzuki T, Tsuchiya M, Furukawa T, Yoshimi A, Ino T, Ueno H, Matsuo Y, Fukuyama T, Asahi K. Development of high-homogeneity magnetic field coil for 129Xe EDM experiment. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s10751-014-1109-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Toyoda R, Tsuchiya M, Sakamoto R, Matsuoka R, Wu KH, Hattori Y, Nishihara H. Heteroleptic bis(dipyrrinato)copper(ii) and nickel(ii) complexes. Dalton Trans 2015; 44:15103-6. [DOI: 10.1039/c5dt00724k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Heteroleptic bis(dipyrrinato)copper(ii) and nickel(ii) complexes are synthesized for the first time, and their structural, photochemical, and electrochemical properties are disclosed.
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Affiliation(s)
- Ryojun Toyoda
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Mizuho Tsuchiya
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Ryota Sakamoto
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Ryota Matsuoka
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Kuo-Hui Wu
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Yohei Hattori
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Hiroshi Nishihara
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Tokyo 113-0033
- Japan
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Tsuchiya M, Nakajima Y, Waku T, Hiyoshi H, Morishita T, Furumai R, Hayashi Y, Kishimoto H, Kimura K, Yanagisawa J. CHIP buffers heterogeneous Bcl-2 expression levels to prevent augmentation of anticancer drug-resistant cell population. Oncogene 2014; 34:4656-63. [DOI: 10.1038/onc.2014.387] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 09/25/2014] [Accepted: 10/14/2014] [Indexed: 01/12/2023]
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Suehiro K, Tanaka K, Matsuura T, Funao T, Yamada T, Mori T, Tsuchiya M, Nishikawa K. Preoperative hydroperoxide concentrations are associated with a risk of postoperative complications after cardiac surgery. Anaesth Intensive Care 2014; 42:487-94. [PMID: 24967764 DOI: 10.1177/0310057x1404200410] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study aimed to assess whether preoperative oxidative stress levels can predict postoperative complications in patients undergoing cardiac surgery. Ninety-five cardiac surgery patients received an assessment of preoperative oxidative stress by measurement of hydroperoxide values in blood via the d-Rom test. Area under the receiver operating characteristic curve and also multivariate logistic regression were used to evaluate the prognostic significance of preoperative hydroperoxide concentrations in predicting the occurrence of major organ morbidity and mortality (MOMM). MOMM included death, deep sternal infection, reoperation, stroke, renal failure requiring haemodialysis and prolonged ventilation (>48 hours). The ability of preoperative hydroperoxide concentrations to predict MOMM was not significantly different from that of the European system for cardiac operative risk evaluation (EuroSCORE) (area under the receiver operating characteristic curve 0.822 versus 0.821 respectively, P=0.983). The optimal threshold value of hydroperoxide concentration to differentiate between patients with and without MOMM was 450 UCarr (sensitivity, 87.0%; specificity, 81.9%). Duration of intensive care unit stay, mechanical ventilation time and hospital stay were significantly longer in patients with preoperative hydroperoxide concentrations ≥450 UCarr (H group) compared to those patients with preoperative hydroperoxide concentrations <450 UCarr (L group). An increase in preoperative hydroperoxide concentrations remained associated with an increased risk of MOMM (odds ratios: 1.01, 95% confidence interval: 1.00 to 1.03) and prolonged intensive care unit stay (odds ratio 1.01, 95% confidence interval: 1.00 to 1.02), after adjusting for age, gender and EuroSCORE. In conclusion, an increased hydroperoxide concentration before cardiac surgery is an independent risk factor for severe postoperative complications.
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Affiliation(s)
- K Suehiro
- Department of Anaesthesiology, Osaka City University Graduate School of Medicine, Osaka, Japan
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Washizawa N, Oshima Y, Ito M, Suzuki T, Yajima S, Yajima T, Tsuchiya M, Shimada H, Kaneko H. LB032-SUN: Correlation of DXA and BIA in Lean Body Mass Measurement in Stomach Cancer Patients Before Operations. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50658-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Tateno K, Ogawa R, Sakamoto R, Tsuchiya M, Otani T, Saito T. Acid-Responsive Fluorescent Compounds Based on Nitro-Group-Substituted L-Shaped Pentacycles, Pyrrolo[1,2-a][1,8]naphthylidines. Org Lett 2014; 16:3212-5. [DOI: 10.1021/ol501226x] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Kotaro Tateno
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Rie Ogawa
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Ryota Sakamoto
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mizuho Tsuchiya
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takashi Otani
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Research Center for Chirality, Research Institute for Science & Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takao Saito
- Department
of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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Hikota E, Chikamori M, Ichikawa Y, Ohtomo Y, Sakamoto Y, Suzuki T, Bidinosti C, Inoue T, Furukawa T, Yoshimi A, Suzuki K, Nanao T, Miyatake H, Tsuchiya M, Yoshida N, Shirai H, Ino T, Ueno H, Matsuo Y, Fukuyama T, Asahi K. Active nuclear spin maser oscillation with double cell. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146605005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tsuchiya M, Sakamoto R, Kusaka S, Kitagawa Y, Okumura M, Nishihara H. Asymmetric dinuclear bis(dipyrrinato)zinc(ii) complexes: broad absorption and unidirectional quantitative exciton transmission. Chem Commun (Camb) 2014; 50:5881-3. [DOI: 10.1039/c4cc01573h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [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
Asymmetric, heteroleptic dinuclear bis(dipyrrinato)zinc(ii) complexes convey excitons quantitatively and rapidly across their structure from one end to the other.
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Affiliation(s)
- Mizuho Tsuchiya
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku, Japan
| | - Ryota Sakamoto
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku, Japan
| | - Shinpei Kusaka
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku, Japan
| | - Yasutaka Kitagawa
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Toyonaka, Japan
| | - Mitsutaka Okumura
- Department of Chemistry
- Graduate School of Science
- Osaka University
- Toyonaka, Japan
| | - Hiroshi Nishihara
- Department of Chemistry
- Graduate School of Science
- The University of Tokyo
- Bunkyo-ku, Japan
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Ichikawa Y, Chikamori M, Ohtomo Y, Hikota E, Sakamoto Y, Suzuki T, Bidinosti C, Inoue T, Furukawa T, Yoshimi A, Suzuki K, Nanao T, Miyatake H, Tsuchiya M, Yoshida N, Shirai H, Ino T, Ueno H, Matsuo Y, Fukuyama T, Asahi K. Search for electric dipole moment in 129Xe atom using active nuclear spin maser. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146605007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tsuchiya M, Kyoh Y, Mizutani K, Yamashita J, Hamada T. Ultrasound-guided single shot caudal block anesthesia reduces postoperative urinary catheter-induced discomfort. Minerva Anestesiol 2013; 79:1381-1388. [PMID: 23811624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Urinary catheter-induced discomfort during the postoperative period can be distressing, and sometimes results in severe restlessness and agitation, especially in middle-aged and elderly male patients. Recent advances in ultrasound technology have increased the consistency, safety, and ease of a caudal block even in older patients. We speculated that an ultrasound-guided caudal block would be reliable and safe as treatment for such postoperative discomfort. METHODS Adult male patients (ASA I-II) undergoing cervical laminoplasty were allocated to either the caudal block (CB, N.=24) or non-block (NB, N.=24) group. Following anesthesia induction, urinary catheterization was performed using a 16 French Foley catheter. Thereafter, an ultrasound-guided caudal block was performed with 8 ml of 0.3% ropivacaine and 100 µg of fentanyl for patients in group CB, while group NB did not receive a caudal block. We assessed urinary catheter-induced discomfort as mild, moderate, or severe at 0, 2, 6, 10, and 18 hours after surgery, and compared the incidence and severity of discomfort between the groups using a randomized double-blind design. RESULTS All caudal blocks were successfully performed with 1 or 2 needle insertions. The incidence of urinary catheter-induced discomfort was significantly reduced in group CB as compared to NB at 0, 2, and 6 hours, while severity was also reduced at 0 and 2 hours. No patient required re-catheterization due to urinary retention after catheter removal. There were no other complications related to the caudal block. CONCLUSION Preoperative ultrasound-guided single shot caudal block anesthesia safely reduced postoperative urinary catheter-induced discomfort in our male patients.
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Tsuchiya M, Kyoh Y. Key points for intraoperative management of percutaneous endoscopic lumbar discectomy (PELD) for anesthesiologists. Minerva Anestesiol 2013; 79:1318-1319. [PMID: 23652176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Affiliation(s)
- M Tsuchiya
- Department of Anesthesiology, Osaka City University Medical School, Abeno-Ku, Osaka, Japan -
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Shimura Y, Kurosawa H, Sugawara Y, Tsuchiya M, Sawa M, Kaneko H, Futami I, Liu L, Sadatsuki R, Hada S, Iwase Y, Kaneko K, Ishijima M. The factors associated with pain severity in patients with knee osteoarthritis vary according to the radiographic disease severity: a cross-sectional study. Osteoarthritis Cartilage 2013; 21:1179-84. [PMID: 23973128 DOI: 10.1016/j.joca.2013.05.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 04/09/2013] [Accepted: 05/20/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Knee osteoarthritis (OA) pain is suggested to be associated with inflammation and detrimental mechanical loading across the joint. In this cross-sectional study, we simultaneously examined the inflammation and alignment of the lower limb and examined how the pain components varied depending on the disease progression. DESIGN One-hundred sixty female medial type of early- [n = 74 in Kellgren-Lawrence (K/L) 2] to advanced-stage (n = 96 in K/L >2) knee OA subjects (70.5 years on average) were enrolled. Knee pain was evaluated using a pain visual analog scale (VAS) and the pain-related subcategory of the Japanese Knee Osteoarthritis Measure (JKOM-pain). The serum interleukin (sIL)-6 level reflecting synovitis, and the high sensitivity C-reactive protein (hs-CRP) level were measured to evaluate the severity of inflammation. The anatomical axis angle (AAA) was measured as an alignment index. The β-coefficient was estimated after adjusting for age and the body mass index (BMI) using a multiple linear regression analysis. RESULTS Multiple linear regression analyses showed that the sIL-6 levels, but not AAA, associated with the pain VAS [β = 10.77 (95% confidence interval (CI): 4.14-17.40), P < 0.01] and JKOM-pain scores [β = 3.19 (95% CI: 1.93-4.44), P < 0.001] in the early stage. Conversely, AAA, but not the sIL-6 levels, was found to be associated with the pain VAS [β = -1.29 (95% CI: -2.51 to -0.08), P < 0.05] and JKOM-pain scores [β = -0.49 (95% CI: -0.82 to -0.16), P < 0.01] in the advanced stage. CONCLUSIONS The presence of a higher level of sIL-6 and the varus alignment of the joint is associated with pain in early- and advanced-stage knee OA patients, respectively.
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Affiliation(s)
- Y Shimura
- Department of Orthopedics, Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan.
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Watanabe T, Tsuchiya M, Suzuki T, Niwa T, Ohta H, Murakami N. P280: Seroprevalence of measles, rubella, mumps, and varicella among health care workers in Japan. Antimicrob Resist Infect Control 2013. [PMCID: PMC3687707 DOI: 10.1186/2047-2994-2-s1-p280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tsuchiya M, Takahashi R, Furukawa A, Suehiro K, Mizutani K, Nishikawa K. Transversus abdominis plane block in combination with general anesthesia provides better intraoperative hemodynamic control and quicker recovery than general anesthesia alone in high-risk abdominal surgery patients. Minerva Anestesiol 2012; 78:1241-1247. [PMID: 23132262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Patients with severe cardiovascular disease are frequently hemodynamically unstable during abdominal surgery. Improving the safety of such patients by stabilizing intraoperative hemodynamics remains a major concern for anesthesiologists. Transversus abdominis plane (TAP) block in combination with general anesthesia may facilitate optimum anesthetic management of these high-risk patients. METHODS Patients with cardiovascular disease classified as American Society of Anesthesiologists (ASA) physical status 3 were enrolled. The patients were undergoing elective abdominal surgery and were randomized to a group receiving general anesthesia and TAP block (Group T, N.=33) or a group receiving general anesthesia alone (Group G, N.=35). We compared the groups for intraoperative hemodynamic stability, anesthesia emergence time, amounts of anesthetics and opioids given, and frequency of emergency treatment with cardiovascular agents. A preliminary study demonstrated that systolic blood pressure and heart rate were maintained stable within 70-110% of their preanesthesia values throughout surgery in ASA 1 elderly patients without cardiovascular disease. Thus, the hemodynamically stable time was defined as the time when systolic blood pressure and heart rate were 70-110% of their preanesthesia values. The ratio of hemodynamically stable time to total operative time was used as an index of hemodynamic stability. RESULTS The median (minimum-maximum) percentage of hemodynamically stable time was longer in Group T (91[50-100]%) than Group G (79[40-91]%, P<0.01). The mean sevoflurane concentration, amount of fentanyl given and frequency of vasopressor use were lower in Group T than Group G (P<0.05). Anesthesia emergence time was shorter in Group T (14[4-30] min) than Group G (18[9-52] min, P<0.01). No worsening of cardiovascular complications was observed. CONCLUSION For abdominal surgery in patients with severe cardiovascular disease, combining TAP block with general anesthesia promotes intraoperative hemodynamic stability and early emergence from anesthesia.
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Affiliation(s)
- M Tsuchiya
- Department of Anesthesiology, Osaka City University Medical School, Abeno-Ku, Osaka, Japan.
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Yoshida K, Tsuchiya M, Tachikawa N, Dokko K, Watanabe M. Solvate Ionic Liquids and Their Application to Lithium Batteries: Glyme-Lithium Bis(fluorosulfonyl)amide Equimolar Complexes. ACTA ACUST UNITED AC 2012. [DOI: 10.1557/opl.2012.1517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThe physicochemical properties of glyme-Li[FSA] (FSA: bis(fluorosulfonyl)amide) equimolar complexes were investigated. The self-diffusion coefficients of glymes and Li+ as determined by pulsed-field gradient spin-echo nuclear magnetic resonance spectroscopy in equimolar complexes were almost identical, suggesting that all of the glyme molecules coordinated with Li+. Electrochemical characterization revealed that the oxidative stability of glyme molecules was enhanced by complexing with Li+. Using [Li(glyme)1][FSA] electrolytes and a LiFePO4cathode, a lithium secondary battery could be stably operated for more than 100 cycles at room temperature.
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Ueno K, Yoshida K, Tsuchiya M, Tachikawa N, Dokko K, Watanabe M. Glyme–Lithium Salt Equimolar Molten Mixtures: Concentrated Solutions or Solvate Ionic Liquids? J Phys Chem B 2012; 116:11323-31. [DOI: 10.1021/jp307378j] [Citation(s) in RCA: 304] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kazuhide Ueno
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku,
Yokohama 240-8501, Japan
| | - Kazuki Yoshida
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku,
Yokohama 240-8501, Japan
| | - Mizuho Tsuchiya
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku,
Yokohama 240-8501, Japan
| | - Naoki Tachikawa
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku,
Yokohama 240-8501, Japan
| | - Kaoru Dokko
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku,
Yokohama 240-8501, Japan
| | - Masayoshi Watanabe
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku,
Yokohama 240-8501, Japan
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Chevrier R, Daugas JM, Gaudefroy L, Ichikawa Y, Ueno H, Hass M, Haas H, Cottenier S, Aoi N, Asahi K, Balabanski DL, Fukuda N, Furukawa T, Georgiev G, Hayashi H, Iijima H, Inabe N, Inoue T, Ishihara M, Ishii Y, Kameda D, Kubo T, Nanao T, Neyens G, Ohnishi T, Rajabali MM, Suzuki K, Takeda H, Tsuchiya M, Vermeulen N, Watanabe H, Yoshimi A. Is the 7/2(1)- isomer state of 43S spherical? Phys Rev Lett 2012; 108:162501. [PMID: 22680712 DOI: 10.1103/physrevlett.108.162501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Indexed: 06/01/2023]
Abstract
We report on the spectroscopic quadrupole moment measurement of the 7/2(1)(-) isomeric state in (16)(43)S(27) [E*=320.5(5) keV, T(1/2)=415(3) ns], using the time dependent perturbed angular distribution technique at the RIKEN RIBF facility. Our value, |Q(s)|=23(3) efm(2), is larger than that expected for a single-particle state. Shell model calculations using the modern SDPF-U interaction for this mass region reproduce remarkably well the measured |Q(s)|, and show that non-negligible correlations drive the isomeric state away from a purely spherical shape.
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Sakamoto R, Kusaka S, Kitagawa Y, Kishida MA, Hayashi M, Takara Y, Tsuchiya M, Kakinuma J, Takeda T, Hirata K, Ogino T, Kawahara K, Yagi T, Ikehira S, Nakamura T, Isomura M, Toyama M, Ichikawa S, Okumura M, Nishihara H. Fluorescent azadipyrrinato zinc(ii) complex: hybridisation with a dipyrrinato ligand. Dalton Trans 2012; 41:14035-7. [DOI: 10.1039/c2dt32039h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Tamura T, Yoshida K, Hachida T, Tsuchiya M, Nakamura M, Kazue Y, Tachikawa N, Dokko K, Watanabe M. Physicochemical Properties of Glyme–Li Salt Complexes as a New Family of Room-temperature Ionic Liquids. CHEM LETT 2010. [DOI: 10.1246/cl.2010.753] [Citation(s) in RCA: 233] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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50
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Igawa T, Tsunoda H, Kikuchi Y, Yoshida M, Tanaka M, Koga A, Sekimori Y, Orita T, Aso Y, Hattori K, Tsuchiya M. VH/VL interface engineering to promote selective expression and inhibit conformational isomerization of thrombopoietin receptor agonist single-chain diabody. Protein Eng Des Sel 2010; 23:667-77. [DOI: 10.1093/protein/gzq034] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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