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Sato M, Furusawa H, Sakai M, Soga Y, Sievers AJ. Experimental study of intrinsic localized mode mobility in a cyclic, balanced, 1D nonlinear transmission line. Chaos 2023; 33:073149. [PMID: 37486665 DOI: 10.1063/5.0156547] [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: 05/01/2023] [Accepted: 07/04/2023] [Indexed: 07/25/2023]
Abstract
Mobile intrinsic localized modes (ILMs) in balanced nonlinear capacitive-inductive cyclic transmission lines are studied by experiment, using a spatiotemporal driver under damped steady-state conditions. Without nonlinear balance, the experimentally observed resonance between the traveling ILM and normal modes of the nonlinear transmission line generates lattice drag via the production of a lattice backwave. In our experimental study of a balanced running ILM in a steady state, it is observed that the fundamental resonance can be removed over extended, well-defined driving frequency intervals and strongly suppressed over the complete ILM driving frequency range. Because both of these nonlinear capacitive and inductive elements display hysteresis our observation demonstrates that the experimental system, which is only partially self-dual, is surprisingly tolerant, regarding the precision necessary to eliminate the ILM backwave. It appears that simply balancing the cell dual nonlinearities makes the ILM envelope shape essentially the same at the two locations in the cell, so that the effective lattice discreteness seen by the ILM nearly vanishes.
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Affiliation(s)
- M Sato
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - H Furusawa
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - M Sakai
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Y Soga
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - A J Sievers
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853-2501, USA
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Sato M, Furusawa H, Soga Y, Sievers AJ. Propagating intrinsic localized mode in a cyclic, dissipative, self-dual one-dimensional nonlinear transmission line. Phys Rev E 2023; 107:034202. [PMID: 37072939 DOI: 10.1103/physreve.107.034202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 02/14/2023] [Indexed: 04/20/2023]
Abstract
A well-known feature of a propagating localized excitation in a discrete lattice is the generation of a backwave in the extended normal mode spectrum. To quantify the parameter-dependent amplitude of such a backwave, the properties of a running intrinsic localized mode (ILM) in electric, cyclic, dissipative, nonlinear 1D transmission lines, containing balanced nonlinear capacitive and inductive terms, are studied via simulations. Both balanced and unbalanced damping and driving conditions are treated. The introduction of a unit cell duplex driver, with a voltage source driving the nonlinear capacitor and a synchronized current source, the nonlinear inductor, provides an opportunity to design a cyclic, dissipative self-dual nonlinear transmission line. When the self-dual conditions are satisfied, the dynamical voltage and current equations of motion within a cell become the same, the strength of the fundamental, resonant coupling between the ILM and the lattice modes collapses, and the associated fundamental backwave is no longer observed.
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Affiliation(s)
- M Sato
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - H Furusawa
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Y Soga
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - A J Sievers
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853-2501, USA
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3
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Sato M, Furusawa H, Sakai M, Soga Y, Sievers AJ. Experimental investigation of supertransmission for an intrinsic localized mode in a cyclic nonlinear transmission line. Chaos 2022; 32:033118. [PMID: 35364854 DOI: 10.1063/5.0084395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
In this experimental study of the nonlinear loss mechanism between traveling localized excitation and the underlying extended normal mode spectrum for a 1D lattice, three types of cyclic, electric, nonlinear transmission lines (NLTLs) are used. They are nonlinear capacitive, inductive, and capacitive+inductive NLTLs. To maintain a robust, steady-state traveling intrinsic localized mode (ILM), a traveling wave driver is used. The ILM loses energy because of a resonance between it and the extended NLTL modes. A wake field excitation is detected directly from ILM velocity experiments by the decrease in ILM speed and by the observation of the wake. Its properties are quantified via a two-dimensional Fourier map in the frequency-wavenumber domain, determined from the measured spatial-time voltage pattern. Simulations support and extend these experimental findings. We find for the capacitive+inductive NLTL configuration, when the two nonlinear terms are theoretically balanced, the wake excitation is calculated to become very small, giving rise to supertransmission over an extended driving frequency range.
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Affiliation(s)
- M Sato
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - H Furusawa
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - M Sakai
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Y Soga
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - A J Sievers
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853-2501, USA
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Tanaka T, Tanaka M, Furusawa H, Kamada Y, Sagara Y, Anan K, Miyara K, Kai Y, Uga T, Tamura K, Mitsuyama S. Pilot Study of Irinotecan and S-1 (IRIS) for Advanced and Metastatic Breast Cancer. Anticancer Res 2020; 40:4779-4785. [PMID: 32727805 DOI: 10.21873/anticanres.14480] [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: 05/23/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Irinotecan is rarely used on the metastatic breast cancer (MBC) setting. S-1 is an oral mixture of tegafur, gimeracil and oteracil. We conducted this pilot study to assess efficacy and safty of chemotherapy with combined irinotecan and S-1 (IRIS). PATIENTS AND METHODS Irinotecan was given intravenously at 80 mg/m2 on days 1 and 8 and S-1 was given orally at 80-120 mg/day depending on body surface area for 2 weeks, repeating the cycle every 3 weeks. RESULTS Twenty-two patients were enrolled in the study. Median age was 50.5 years (range=26-72). Nineteen patients were evaluable for response. Median overall survival and progression-free survival were 672 days (95% CI=420-967) and 166 days (95% CI=76-814), respectively. CONCLUSION The IRIS regimen has an acceptable safety profile and modest efficacy against MBC in patients previously heavily treated with chemotherapy. This regimen has potential to treat MBC.
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Affiliation(s)
- Toshihiro Tanaka
- Division of Oncology, Hematology, and Infectious Diseases, Department of Internal Medicine, Fukuoka University, Fukuoka, Japan
| | - Maki Tanaka
- Department of Surgery, JCHO Kurume General Hospital, Fukuoka, Japan
| | - Hidemi Furusawa
- Department of Breast Surgical Oncology, Breastopia Namba Hospital, Miyazaki, Japan
| | | | | | - Keisei Anan
- Department of Surgery, Kitakyushu Municipal Medical Center, Fukuoka, Japan
| | | | - Yuichirou Kai
- Department of Surgery, Ueo Breast Surgery Clinic, Oita, Japan
| | - Tatsuya Uga
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kazuo Tamura
- Division of Oncology, Hematology, and Infectious Diseases, Department of Internal Medicine, Fukuoka University, Fukuoka, Japan
| | - Shoshu Mitsuyama
- Department of Surgery, Kitakyushu Municipal Medical Center, Fukuoka, Japan
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Okita K, Narumi R, Azuma T, Furusawa H, Shidooka J, Takagi S, Matsumoto Y. Effects of breast structure on high-intensity focused ultrasound focal error. J Ther Ultrasound 2018; 6:4. [PMID: 29951205 PMCID: PMC6010025 DOI: 10.1186/s40349-018-0111-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 05/11/2018] [Indexed: 11/10/2022] Open
Abstract
Background The development of imaging technologies and breast cancer screening allowed early detection of breast cancers. High-intensity focused ultrasound (HIFU) is a non-invasive cancer treatment, but the success of HIFU ablation was depending on the system type, imaging technique, ablation protocol, and patient selection. Therefore, we aimed to determine the relationship between breast tissue structure and focal error during breast cancer HIFU treatment. Methods Numerical simulations of the breast cancer HIFU ablation were performed using digital breast phantoms constructed using the magnetic resonance imaging data obtained from 12 patients. Results The focal shapes were distorted despite breast tissue representing soft tissue. Focal errors are caused by the complex distribution of fibroglandular tissue, and they depend on the target position and the arrangement of the transducer. We demonstrated that the focusing ratio increases with the decrease in the local acoustic inhomogeneity, implying that it may be used as an indicator to reduce the HIFU focal error depending on the breast structure. Conclusions The obtained results demonstrated that the focal error observed during the breast cancer HIFU treatment is highly dependent on the structure of fibroglandular tissue. The optimal arrangement of the transducer to the target can be obtained by minimizing the local acoustic inhomogeneity before the breast cancer HIFU treatment.
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Affiliation(s)
- Kohei Okita
- 1Department of Mechanical Engineering, College of Industrial Technology, Nihon University, 1-2-1 Izumi-cho, Narashino, Chiba, 275-8575 Japan
| | - Ryuta Narumi
- 2Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654 Japan
| | - Takashi Azuma
- 2Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654 Japan
| | - Hidemi Furusawa
- 3Breastopia Namba Hospital, 2-112-1 Maruyama, Miyazaki-shi, Miyazaki, 880-0052 Japan.,Kawaguchi Kogyo General Hospital, 1-18-25 Aoki, Kawaguchi, Saitama, 332-0031 Japan
| | - Junichi Shidooka
- 3Breastopia Namba Hospital, 2-112-1 Maruyama, Miyazaki-shi, Miyazaki, 880-0052 Japan
| | - Shu Takagi
- 4Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654 Japan
| | - Yoichiro Matsumoto
- 4Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654 Japan.,6Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601 Japan
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6
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Keane EF, Johnston S, Bhandari S, Barr E, Bhat NDR, Burgay M, Caleb M, Flynn C, Jameson A, Kramer M, Petroff E, Possenti A, van Straten W, Bailes M, Burke-Spolaor S, Eatough RP, Stappers BW, Totani T, Honma M, Furusawa H, Hattori T, Morokuma T, Niino Y, Sugai H, Terai T, Tominaga N, Yamasaki S, Yasuda N, Allen R, Cooke J, Jencson J, Kasliwal MM, Kaplan DL, Tingay SJ, Williams A, Wayth R, Chandra P, Perrodin D, Berezina M, Mickaliger M, Bassa C. The host galaxy of a fast radio burst. Nature 2016; 530:453-6. [PMID: 26911781 DOI: 10.1038/nature17140] [Citation(s) in RCA: 225] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 01/13/2016] [Indexed: 11/09/2022]
Abstract
In recent years, millisecond-duration radio signals originating in distant galaxies appear to have been discovered in the so-called fast radio bursts. These signals are dispersed according to a precise physical law and this dispersion is a key observable quantity, which, in tandem with a redshift measurement, can be used for fundamental physical investigations. Every fast radio burst has a dispersion measurement, but none before now have had a redshift measurement, because of the difficulty in pinpointing their celestial coordinates. Here we report the discovery of a fast radio burst and the identification of a fading radio transient lasting ~6 days after the event, which we use to identify the host galaxy; we measure the galaxy's redshift to be z = 0.492 ± 0.008. The dispersion measure and redshift, in combination, provide a direct measurement of the cosmic density of ionized baryons in the intergalactic medium of ΩIGM = 4.9 ± 1.3 per cent, in agreement with the expectation from the Wilkinson Microwave Anisotropy Probe, and including all of the so-called 'missing baryons'. The ~6-day radio transient is largely consistent with the radio afterglow of a short γ-ray burst, and its existence and timescale do not support progenitor models such as giant pulses from pulsars, and supernovae. This contrasts with the interpretation of another recently discovered fast radio burst, suggesting that there are at least two classes of bursts.
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Affiliation(s)
- E F Keane
- Square Kilometre Array Organisation, Jodrell Bank Observatory, SK11 9DL, UK.,Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia.,Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - S Johnston
- Commonwealth Science and Industrial Research Organisation (CSIRO), Astronomy and Space Science, Australia Telescope National Facility, PO Box 76, Epping, New South Wales 1710, Australia
| | - S Bhandari
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia.,Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - E Barr
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia
| | - N D R Bhat
- Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.,International Centre for Radio Astronomy Research, Curtin University, Bentley, Western Australia 6102, Australia
| | - M Burgay
- Instituto Nazionale di Astrofisica (INAF)-Osservatorio Astronomico di Cagliari, Via della Scienza 5, I-09047 Selargius (CA), Italy
| | - M Caleb
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia.,Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.,Research School of Astronomy and Astrophysics, Australian National University, Canberra, Australian Capital Territory 2611, Australia
| | - C Flynn
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia.,Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - A Jameson
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia.,Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - M Kramer
- Max-Planck-Institut für Radioastronomie (MPIfR), Auf dem Hügel 69, D-53121 Bonn, Germany.,Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
| | - E Petroff
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia.,Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.,Commonwealth Science and Industrial Research Organisation (CSIRO), Astronomy and Space Science, Australia Telescope National Facility, PO Box 76, Epping, New South Wales 1710, Australia
| | - A Possenti
- Instituto Nazionale di Astrofisica (INAF)-Osservatorio Astronomico di Cagliari, Via della Scienza 5, I-09047 Selargius (CA), Italy
| | - W van Straten
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia
| | - M Bailes
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia.,Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - S Burke-Spolaor
- National Radio Astronomy Observatory, Socorro, New Mexico, USA
| | - R P Eatough
- Max-Planck-Institut für Radioastronomie (MPIfR), Auf dem Hügel 69, D-53121 Bonn, Germany
| | - B W Stappers
- Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
| | - T Totani
- Department of Astronomy, the University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - M Honma
- National Astronomical Observatory of Japan, 2 Chome-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan.,Department of Astronomical Science, SOKENDAI (Graduate University for the Advanced Study), Osawa, Mitaka 181-8588, Japan
| | - H Furusawa
- National Astronomical Observatory of Japan, 2 Chome-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
| | - T Hattori
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, Hawaii 96720, USA
| | - T Morokuma
- Institute of Astronomy, Graduate School of Science, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan.,Kavli Institute for the Physics and Mathematics of the Universe (WPI), Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - Y Niino
- National Astronomical Observatory of Japan, 2 Chome-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
| | - H Sugai
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - T Terai
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, Hawaii 96720, USA
| | - N Tominaga
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8583, Japan.,Department of Physics, Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Kobe, Hyogo 658-8501, Japan
| | - S Yamasaki
- Department of Astronomy, the University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - N Yasuda
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - R Allen
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia
| | - J Cooke
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H29, PO Box 218, Victoria 3122, Australia.,Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - J Jencson
- Cahill Center for Astrophysics, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA
| | - M M Kasliwal
- Cahill Center for Astrophysics, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA
| | - D L Kaplan
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201, USA
| | - S J Tingay
- Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.,International Centre for Radio Astronomy Research, Curtin University, Bentley, Western Australia 6102, Australia
| | - A Williams
- International Centre for Radio Astronomy Research, Curtin University, Bentley, Western Australia 6102, Australia
| | - R Wayth
- Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.,International Centre for Radio Astronomy Research, Curtin University, Bentley, Western Australia 6102, Australia
| | - P Chandra
- National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, Ganeshkhind, Pune 411 007, India
| | - D Perrodin
- Instituto Nazionale di Astrofisica (INAF)-Osservatorio Astronomico di Cagliari, Via della Scienza 5, I-09047 Selargius (CA), Italy
| | - M Berezina
- Max-Planck-Institut für Radioastronomie (MPIfR), Auf dem Hügel 69, D-53121 Bonn, Germany
| | - M Mickaliger
- Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
| | - C Bassa
- ASTRON, the Netherlands Institute for Radio Astronomy, Postbus 2, NL-7990 AA Dwingeloo, The Netherlands
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Furusawa H, Shidooka J, Inomata M, Hirabara E, Nakahara H, Ymaguchi Y. MRgFUS of small breast cancer: what should be learned from a case of local recurrence. J Ther Ultrasound 2015. [PMCID: PMC4489488 DOI: 10.1186/2050-5736-3-s1-o75] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Maeda Y, Funagayama M, Shinohara A, Koshimoto C, Komaki K, Furusawa H, Nakahara H, Yasuda Y, Machida E. Effect of membrane solubilization on the inhibition of rat and hamster liver microsomal type I 11β-hydroxysteroid dehydrogenase by bile acids. Horm Metab Res 2013; 45:856-61. [PMID: 23979791 DOI: 10.1055/s-0033-1353197] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The aim of this study was to investigate the differences between rats and hamsters, Two of the most widely used experimental animals, with respect to the effects of microsomal membrane solubilization on the inhibition of liver 11β-hydroxysteroid dehydrogenase (11β-HSDI) enzyme by bile acids. Liver microsome fractions were prepared, and the 11β-HSDI enzymatic activity was measured using cortisone as a substrate. The substrate and various concentrations of bile acids were added to the assay mixtures. After incubation, the products were extracted and analyzed using high-performance liquid chromatography. To investigate the effect of detergent on the inhibitory effects of bile acids, we conducted inhibition tests using Triton X-100-solubilized animal liver microsomes. When solubilized microsomes were used, all bile acids inhibited 11β-HSDI from rats and hamsters to various degrees. 7α-Hydroxycholanoic acids (cholic acid and chenodeoxycholic acid) in particular had strong inhibitory activities. In hamsters, 7β-hydroxycholanoic acid (ursodeoxycholic acid) was the strongest inhibitor among the bile acids tested, although its effect was not very strong. When nonsolubilized microsomes were used, deoxycholic acid did not inhibit but rather enhanced the enzymatic activity in both animals. Microsomal content of cholesterol and phospholipids are significantly different between rats and hamsters. Species differences in bile acid inhibition of nonsolubilized microsomes might be reflected not only by structural difference of bile acids, which affect membrane solubilization and enzyme activity directly, but also species difference in microsomal membrane lipid content.
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Affiliation(s)
- Y Maeda
- Department of Surgery, Breastopia Hospital, Miyazaki, Japan
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Yasuda Y, Furusawa H, Maeda Y, Komaki K. 327 The Serum HER-2 Reflects the Tumor Burden of Breast Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70393-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Hirata M, Takao S, Okamoto Y, Yamashita S, Kawaguchi Y, Takami M, Furusawa H, Abe C, Sakamoto J, Yoshimoto M. 472 A phase II trial of oral combination chemotherapy with capecitabine and cyclophosphamide (XC) in metastatic breast cancer. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)70493-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Rai Y, Tanaka M, Mitsuyama M, Uga T, Tanaka S, Nanba K, Furusawa H, Murata K, Nishimura R, Oikawa T, Kamada Y, Maeda S, Maeda J, Honjyo S, Iwase H, Yamamoto Y, Masuno K, Shibuta K, Kai Y, Taniguchi H, Yahara T, Yokoyama G, Yoshinaga Y, Umeda S, Hisamatsu K, Tamura K. 0142 Feasibility study of fluorouracil/epirubicin/cyclophosphamide (FEC75) followed by docetaxel (DOC) as adjuvant chemotherapy in Japanese patients with node positive breast cancer. Breast 2009. [DOI: 10.1016/s0960-9776(09)70173-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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12
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Kishi M, Miyazaki Y, Jinta T, Furusawa H, Ohtani Y, Inase N, Yoshizawa Y. Pathogenesis of cBFL in common with IPF? Correlation of IP-10/TARC ratio with histological patterns. Thorax 2008; 63:810-6. [PMID: 18276722 DOI: 10.1136/thx.2007.086074] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [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
BACKGROUND A Th1 predominant immune response has been shown in acute hypersensitivity pneumonitis. Predominance of Th2 appears to favour the development of pulmonary fibrosis through the profibrotic process and has been described as crucial in the progression of idiopathic pulmonary fibrosis. Chronic bird fancier's lung (cBFL) can present with a histological pattern of usual interstitial pneumonia (UIP)-like lesions. Little is known about the Th1/Th2 balance in the pathogenesis of cBFL. METHODS To evaluate the relevance of Th1-type chemokines (interferon-inducible protein, IP-10) and Th2-type chemokines (thymus- and activation-regulated chemokine, TARC) and their receptors (CXCR3 and CCR4) to the histological patterns of cBFL, 40 patients with cBFL who underwent surgical lung biopsies, 12 with acute BFL (aBFL) and 10 healthy volunteers were analysed. IP-10 and TARC levels in serum and bronchoalveolar lavage (BAL) fluid were measured by ELISA. Immunohistochemistry for CXCR3 and CCR4 was performed on surgical lung specimens. RESULTS The ratio of TARC to IP-10 in the serum of patients with UIP-like lesions was significantly higher than in patients with cNSIP/OP-like lesions, aBFL and healthy volunteers. The ratio of CCR4 to CXCR3 in patients with UIP-like lesions was significantly higher than in those with cNSIP/OP-like lesions and fNSIP-like lesions. The ratio of CCR4-positive to CXCR3-positive cells correlated with the ratio of TARC to IP-10 in serum. CONCLUSIONS A Th2 predominant immune response may play an important role in the development of UIP-like lesions, as already observed in idiopathic pulmonary fibrosis. A Th1 predominance may play a role in the development of cNSIP/OP-like lesions in cBFL.
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Affiliation(s)
- M Kishi
- Department of Integrated Pulmonology, Tokyo Medical and Dental University, 1-5-45, Bunkyo-ku, Tokyo 113-8519, Japan
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Yamaguchi R, Furusawa H, Nakahara H, Inomata M, Namba K, Tanaka M, Ohkuma K, Tayama K, Fujii T, Yano H, Kage M, Kojiro M. Clinicopathological study of invasive ductal carcinoma with large central acellular zone: Special reference to magnetic resonance imaging findings. Pathol Int 2007; 58:26-30. [DOI: 10.1111/j.1440-1827.2007.02184.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Furusawa H, Namba K, Nakahara H, Tanaka C, Yasuda Y, Hirabara E, Imahariyama M, Komaki K. The evolving non-surgical ablation of breast cancer: Mr Guided focused ultrasound (MRgFUS). Breast Cancer 2007; 14:55-8. [PMID: 17244995 DOI: 10.2325/jbcs.14.55] [Citation(s) in RCA: 144] [Impact Index Per Article: 8.5] [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: 11/27/2022]
Abstract
MRgFUS (MR guided Focused Ultrasound) being one of the non-surgical ablation techniques. We have already achieved favorable results in the past clinical study of MRgFUS to local treatment. New twenty one cases of invasive/noninvasive ductal carcinoma of the breast were treated by MRgFUS. Core needle biopsy led to the definitive diagnosis. All the patients were positioned prone in the treatment, using the therapeutic apparatus such as Signa Excite 1.5 T for MRI and ExAblate 2000 version 2.6/4.1 for FUS. Irradiation was not applied to all the 21 cases after MRgFUS. Axillary lymph node metastases were examined by dissection or sentinel lymph node biopsy. Recurrence or abnormal area of residual cancer was treated with Re-MRgFUS or ablated by usual surgery. All the 21 cases were from women patients. Median age is 54 years (range: 34-72). Median diameter of tumor is 15 mm (range: 5-50). As for the numbers of treatment, 17 patients were treated once, and 4 patients twice. Median period of observation is 14 months (range: 3-26). One case of recurrence of pure mucinous carcinoma was experienced. No evidences of recurrence were obtained through MRI for the rest of 20 cases. Skin burns were found in 2 cases. The patient had dimple on the skin immediately above tumor. In conclusion, MRgFUS is a good mean as local control of breast cancer, but the indicated case must be selected strictly. And it needs to observe longer the patients who ware treated by MRgFUS alone.
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Affiliation(s)
- Hidemi Furusawa
- Division of Breast Surgical Oncology, Breastopia NANBA Hospital, Miyazaki, Japan.
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15
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Furusawa H, Namba K, Thomsen S, Akiyama F, Bendet A, Tanaka C, Yasuda Y, Nakahara H. Magnetic Resonance–Guided Focused Ultrasound Surgery of Breast Cancer: Reliability and Effectiveness. J Am Coll Surg 2006; 203:54-63. [PMID: 16798487 DOI: 10.1016/j.jamcollsurg.2006.04.002] [Citation(s) in RCA: 224] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2005] [Revised: 03/29/2006] [Accepted: 04/03/2006] [Indexed: 11/20/2022]
Abstract
BACKGROUND Magnetic resonance-guided focused ultrasound surgery (MRgFUS) is a noninvasive technique that has been shown to coagulate benign and malignant tumors. The purpose of this study was to evaluate MRgFUS safety and effectiveness for the ablation of breast carcinomas. STUDY DESIGN Thirty women with biopsy-proved breast cancer underwent MRgFUS treatment. Gadolinium-enhanced MR images were used for treatment planning and posttreatment radiologic assessment of treated tissue, and temperature-sensitive MR images provided real-time treatment monitoring. After MRgFUS, all 30 women underwent wide excision or mastectomy. The extent of thermal ablation was assessed with tumor histology. RESULTS Treatment was well tolerated, with a minimum of adverse effects, especially when performed under local anesthesia. On pathologic examination, mean (+/-SD) necrosis of the targeted breast tumors was 96.9 +/- 4% (median 100%, range 78% to 100%) of tumor volume. Fifteen (53.5%) of 28 evaluable patients had 100% necrosis of the ablated tumor; only 3 patients (10.7%) had less than 95% necrosis. In 28 (93.3%) patients, 100% of the malignancy was within the treatment field, and 98% and 95% of tumor lay within the treatment field in 2 remaining patients. Retrospective analysis in two patients with residual tumor showed treatment was not delivered to the full recommended area, reaffirming the need for precise localization and the value of contrast-enhanced images for treatment planning. CONCLUSIONS MRgFUS has great potential to become a viable noninvasive replacement for lumpectomy. Additional studies focusing on posttreatment image-based evaluation are needed.
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Affiliation(s)
- Hidemi Furusawa
- Department of Breast Diseases, Breastopia Namba Hospital, Miyazaki, Japan
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16
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Abstract
This paper will review the experience and current applications of magnetic resonance-guided focused ultrasound surgery (MRgFUS) for treatment of breast tumors. Because of the efficient screening mammography programs, most of the breast cancers diagnosed today in the United States and European Union are in early stage and are treated with limited surgery. The MRgFUS may offer an alternative treatment option to conventional surgical lumpectomy with the advantage of being a noninvasive procedure and potentially achieving a better cosmetic outcome. Selection of appropriate patients is of paramount importance. Additional studies are needed to determine the effectiveness of the MRgFUS tumor ablation and define its role as a replacement for surgical lumpectomy.
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Affiliation(s)
- Eva C Gombos
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02155, USA.
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17
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Kawai N, Kosugi G, Aoki K, Yamada T, Totani T, Ohta K, Iye M, Hattori T, Aoki W, Furusawa H, Hurley K, Kawabata KS, Kobayashi N, Komiyama Y, Mizumoto Y, Nomoto K, Noumaru J, Ogasawara R, Sato R, Sekiguchi K, Shirasaki Y, Suzuki M, Takata T, Tamagawa T, Terada H, Watanabe J, Yatsu Y, Yoshida A. An optical spectrum of the afterglow of a γ-ray burst at a redshift of z = 6.295. Nature 2006; 440:184-6. [PMID: 16525466 DOI: 10.1038/nature04498] [Citation(s) in RCA: 218] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2005] [Accepted: 12/02/2005] [Indexed: 11/09/2022]
Abstract
The prompt gamma-ray emission from gamma-ray bursts (GRBs) should be detectable out to distances of z > 10 (ref. 1), and should therefore provide an excellent probe of the evolution of cosmic star formation, reionization of the intergalactic medium, and the metal enrichment history of the Universe. Hitherto, the highest measured redshift for a GRB has been z = 4.50 (ref. 5). Here we report the optical spectrum of the afterglow of GRB 050904 obtained 3.4 days after the burst; the spectrum shows a clear continuum at the long-wavelength end of the spectrum with a sharp cut-off at around 9,000 A due to Lyman alpha absorption at z approximately 6.3 (with a damping wing). A system of absorption lines of heavy elements at z = 6.295 +/- 0.002 was also detected, yielding the precise measurement of the redshift. The Si ii fine-structure lines suggest a dense, metal-enriched environment around the progenitor of the GRB.
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Affiliation(s)
- N Kawai
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
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18
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Okahata Y, Kawase M, Niikura K, Ohtake F, Furusawa H, Ebara Y. Kinetic measurements of DNA hybridization on an oligonucleotide-immobilized 27-MHz quartz crystal microbalance. Anal Chem 2005; 70:1288-96. [PMID: 15779144 DOI: 10.1021/ac970584w] [Citation(s) in RCA: 290] [Impact Index Per Article: 15.3] [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: 11/28/2022]
Abstract
A highly sensitive 27-MHz quartz-crystal microbalance, on which a 10-30-mer oligonucleotide was immobilized as a probe molecule, was employed to detect hybridization of complementary oligonucleotides in aqueous solution. From frequency decreases (mass increases due to the hybridization) with passage of time, kinetic parameters such as association constants (K(a)) and binding and dissociation rate constants (k(1) and k(-1)) could be obtained, as well as binding (hybridization) amount at the nanogram level (delta m). Kinetic studies were carried out by changing various parameters: (i) the immobilization method of a probe oligonucleotide on Au electrode, (ii) number of mismatching bases in sequences of target oligonucleotides, (iii) length of both probe and target oligonucleotides, (iv) hybridization temperature, and (v) ionic strength in solution. The obtained results were compared with those obtained by a surface plasmon resonance method using a BIAcore system.
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Affiliation(s)
- Y Okahata
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuda, Midori-ku, Yokohama 226-8507, Japan
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19
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Koishi T, Yoo S, Yasuoka K, Zeng XC, Narumi T, Susukita R, Kawai A, Furusawa H, Suenaga A, Okimoto N, Futatsugi N, Ebisuzaki T. Nanoscale hydrophobic interaction and nanobubble nucleation. Phys Rev Lett 2004; 93:185701. [PMID: 15525179 DOI: 10.1103/physrevlett.93.185701] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2004] [Indexed: 05/24/2023]
Abstract
We report large-scale atomistic simulation of midrange nanoscale hydrophobic interaction, manifested by the nucleation of nanobubble between nanometer-sized hydrophobes at constrained equilibrium. When the length scale of the hydrophobes is greater than 2 nm, the nanobubble formation shows hysteresis behavior resembling the first-order transition. Calculation of the potential of mean force versus interhydrophobe distance provides a quantitative measure of the strength of the nanoscale hydrophobic interaction.
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Affiliation(s)
- T Koishi
- Computational Sciences Division, Advanced Computing Center, RIKEN, Wako, Saitama 351-0198, Japan
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20
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Okahata Y, Kitamura Y, Hagiwara N, Furusawa H. Quantitative detection of binding of PCNA protein to DNA strands on a 27 MHz quartz-crystal microbalance. Nucleic Acids Symp Ser 2003:243-4. [PMID: 12903359 DOI: 10.1093/nass/44.1.243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
We report here binding kinetics of proliferating cell nuclear antigen (PCNA) to the dsDNA immobilized on a 27 MHz quartz-crystal microbalance. PCNA is a toroidal-shaped protein and encircles dsDNA sliding along the strand. The binding behavior of this sliding clamp protein was compared with those of other side binding proteins such as GCN4-bZIP and Zn-finger peptides.
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Affiliation(s)
- Y Okahata
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuda, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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21
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Furusawa H, Morii T, Okahata Y. In vitro selection by using mutated GCN4-bZIP peptides for analysis of peptide-DNA interactions. Nucleic Acids Symp Ser 2003:245-6. [PMID: 12903360 DOI: 10.1093/nass/44.1.245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In vitro selection has been used as a method to determine the optimal binding site for DNA-binding proteins. We report here in vitro selection of dsDNA sequences that bind to mutated-GCN4-bZIP peptides. The GCN4-bZIP peptide mutated from alanine to histidine on a position-14 that contacts with DNA bound to different sequence from a binding site of wild type peptide.
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Affiliation(s)
- H Furusawa
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuda, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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22
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Fukusho S, Furusawa H, Okahata Y. In vitro selection and analysis of RNA aptamer recognize arginine-rich motif (ARM) model peptide on a QCM. Nucleic Acids Symp Ser 2003:187-8. [PMID: 12903331 DOI: 10.1093/nass/44.1.187] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
To study RNA-peptide interactions, we performed an in vitro selection of RNA on a 27 MHz quartz-crystal microbalance (QCM) on which a simple R5 helix peptide was immobilized as a model of N peptide from bacteriophade lambda. The consensus sequences including a GNRA tetraloop were obtained from a random RNA pool after the 7th cycle selection.
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Affiliation(s)
- S Fukusho
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuda, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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23
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Nakahara H, Namba K, Watanabe R, Furusawa H, Matsu T, Akiyama F, Sakamoto G, Tamura S. A comparison of mr imaging, galactography and ultrasonography in patients with nipple discharge. Breast Cancer 2003; 10:320-9. [PMID: 14634510 DOI: 10.1007/bf02967652] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [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: 11/30/2022]
Abstract
BACKGROUND The aim of this study is to assess the usefulness of three-dimensional contrast-enhanced magnetic resonance (MR) imaging, compared with galactography and ultrasonography(US). METHODS Fifty-five patients with bloody nipple discharge were investigated retrospectively. All patients were examined by galactography, ultrasonography and MR imaging. These three sets of findings were compared with the histopathological results from 16 intraductal biopsies, 3 excisional biopsies, 24 microdochectomies and 12 mastectomies. RESULTS Contrast enhanced MR imaging demonstrated all malignant lesions including ductal carcinoma in situ (DCIS). Four cases of DCIS were not visualized by ultrasonography and three malignant lesions were missed by galactography. In the MR study, segmental clumped enhancement (positive predictive value =100 %), and focal mass with smooth border (negative predictive value =87.5 %) were the statistically significant predictive factors. CONCLUSIONS Among the three modalities, contrast-enhanced three-dimensional MR imaging demonstrated the location and distribution of the lesions most clearly, especially in cases of ductal carcinoma in situ. It has the potential to be a useful diagnostic tool for patients with nipple discharge.
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Affiliation(s)
- Hiroshi Nakahara
- Department of Radiology, Miyazaki Medical College, 5200 Ohaza Kihara, Kiyotake, Miyazaki 889-1692, Japan
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24
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Matsuno H, Furusawa H, Okahata Y. Kinetic analyses of ATP-dependent deoxyribonuclease (DNase) reactions on a quartz-crystal microbalance. Nucleic Acids Res Suppl 2003:261-2. [PMID: 12836364 DOI: 10.1093/nass/1.1.261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We report here kinetic analyses of the hydrolysis of DNA by the ATP-dependent DNase using a DNA-immobilized quartz-crystal microbalance (QCM), which enables in situ real-time monitoring both the binding of enzyme and the hydrolysis reaction on DNA strands, as mass changes.
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Affiliation(s)
- H Matsuno
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
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25
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Maeda Y, Tanaka E, Fujiwara M, Watanabe R, Furusawa H, Matsu T, Nakahara H, Nanba K, Higashi S, Setoguchi T. Accumulation of 4- and 5-ene steroid sulfates in human breast cyst fluids. J Steroid Biochem Mol Biol 2002; 81:249-53. [PMID: 12163136 DOI: 10.1016/s0960-0760(02)00069-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gross cystic disease of the breast is one of the most common diseases of adult females. Breast cyst fluid contains various steroid hormones. In order to obtain more information about the concentrations of 4- and 5-ene steroids in human breast cyst fluids, levels of pregnenolone sulfate (PREGS), pregnenolone (PREG), dehydroepiandrosterone sulfate (DHEAS) and dehydroepiandrosterone (DHEA) were determined by high-performance liquid chromatography (HPLC). A total of 35 human breast cyst fluid samples, obtained from 35 patients (28-54 years old) were analyzed. Cyst fluid electrolytes were simultaneously determined. Levels of PREGS (mean+/-S.D.) were 26.9+/-20.0 micromol/l (N=35) and of PREG were <0.1 micromol/l. Levels of DHEAS and DHEA were 89.1+/-111.7 micromol/l (N=35) and 0.3+/-0.2 micromol/l (N=35), respectively. Cyst fluids were divided into two groups (types I and II) according to their electrolyte ratio (K(+)/Na(+)). The cysts of the type I group (K(+)/Na(+) >1.5) contained significantly higher levels of PREGS (39.9+/-21.1 micromol/l) and DHEAS (133.2+/-87.9 micromol/l) than those of the type II group (K(+)/Na(+) <1.5), the mean levels of which were 19.8+/-16.2 micromol/dl for PREGS, and 36.3+/-29.0 micromol/dl for DHEAS (P<0.05). PREGS and DHEAS levels in the cysts were significantly correlated (r=0.49; P<0.01). Human breast cyst fluids contain high concentration of DHEAS and PREGS, especially in the cyst fluids containing high K(+)/Na(+) ratios.
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Affiliation(s)
- Yorio Maeda
- Department of Surgery I, Miyazaki Medical College, Japan.
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26
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Nakahara H, Namba K, Wakamatsu H, Watanabe R, Furusawa H, Shirouzu M, Matsu T, Tanaka C, Akiyama F, Ifuku H, Nakahara M, Tamura S. Extension of breast cancer: comparison of CT and MRI. Radiat Med 2002; 20:17-23. [PMID: 12002599] [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] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
PURPOSE To compare three-dimensional (3D) helical CT with 3D MRI in the evaluation of intraductal spread of breast cancer. METHODS Fifty patients with breast cancer were examined. Tumor size ranged from Tis to T2. The whole breast was scanned by both breath-holding helical CT and MRI with contrast media. Linear or segmental enhancement, and spotty enhancement around the main tumor were considered to indicate ductal carcinoma in situ (DCIS) or ductal spread. These findings were compared with thin section histopathologic data. RESULTS Seventeen of 35 patients had intraductal spread with invasive cancer and 15 patients had DCIS. The sensitivity, specificity, and accuracy of 3D CT in detecting intraductal spread or DCIS were 71.9%, 83.3%, and 76.0%, respectively, and those of 3D MRI were 87.5%, 61.1%, and 78.0%. Overestimations numbered three (6.0%) on CT and seven (14.0%) on MRI, and underestimations numbered nine (18.0%) on CT and four (8.0%) on MRI. CONCLUSION 3D helical CT can provide good information about the spread of breast cancer and could be an alternative to 3D MRI for preoperative examination of breast cancer.
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Affiliation(s)
- Hiroshi Nakahara
- Department of Radiology, Miyazaki Medical College, Kiyotake, Japan
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27
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Nakahara H, Namba K, Fukami A, Watanabe R, Maeda Y, Furusawa H, Matsu T, Akiyama F, Nakagawa H, Ifuku H, Nakahara M, Tamura S. Three-dimensional MR imaging of mammographically detected suspicious microcalcifications. Breast Cancer 2001; 8:116-24. [PMID: 11342984 DOI: 10.1007/bf02967490] [Citation(s) in RCA: 22] [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: 10/21/2022]
Abstract
BACKGROUND The purpose of this study was to evaluate the diagnostic value and clinical significance of three-dimensional MR imaging of the breast in patients with mammographically detected suspicious microcalcifications. METHODS Forty patients with suspicious microcalcifications on mammography were evaluated with three-dimensional MR imaging. MR findings were grouped mainly by distribution of abnormal enhancement (linear, focal-clumped, segmental-clumped, segmental-stippled and diffuse-stippled). These findings were compared with the mammography findings according to the criteria of the Breast Imaging Reporting and Data System (BI-RADS) and histopathologic data. RESULTS Twenty patients had proven malignancies, most frequently ductal carcinoma in situ. For all the cases, linear (100%) and segmental-clumped type (100%) enhancement on MR imaging showed a significantly higher risk for malignancy. Diffuse stippled type (7%) and no enhancement (0%) on MR imaging indicated the lowest possibility of malignancy. 3D-MR imaging showed a sensitivity of 90%, a specificity of 95% and an overall accuracy of 93% in this study. CONCLUSIONS Three-dimensional MR imaging of the breast can more accurately diagnose ductal carcinoma in situ. Combined with mammography, this procedure is useful for reducing the number of false-positive biopsies and helpful for deciding the better management of patients with mammographically detected suspicious microcalcifications.
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Affiliation(s)
- H Nakahara
- Breastopia Namba Hospital, 2-112-1 Maruyama, Miyazaki, Miyazaki 880-0052, Japan
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28
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Hasegawa K, Funayama M, Matsuura N, Furusawa H, Sakai F, Kowa H, Obata F. Analysis of alpha-synuclein, parkin, tau, and UCH-L1 in a Japanese family with autosomal dominant parkinsonism. Eur Neurol 2001; 46:20-4. [PMID: 11455179 DOI: 10.1159/000050751] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [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: 11/19/2022]
Abstract
We examined whether autosomal dominant parkinsonism of a Japanese family, Sagamihara family, was due to the mutations of alpha-synuclein, parkin, tau, and UCH-L1, which have been reported as the causal genes for parkinsonism in other families. Restriction-enzyme digestion of polymerase-chain reaction (PCR) amplified genomic DNA fragments of alpha-synuclein exons 3 and 4 detected no point mutation. PCR-amplification of parkin exons 3, 4, 5, 6 and 7 detected no exon deletion. Direct sequencing of PCR-amplified DNA fragments of tau exons 9, 10, 12, and 13 and intron 10, and of UCH-L1 exon 4 revealed that all these exons and intron were normal including a polymorphic nucleotide substitution. These results indicated that the parkinsonism of the Sagamihara family seems not to be due to previously identified point mutations of alpha-synuclein, tau, or UCH-L1, or to exon deletion of parkin.
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Affiliation(s)
- K Hasegawa
- Department of Internal Medicine, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa 228-8555, Japan
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29
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Okahata Y, Masunaga Y, Matsuno H, Furusawa H. Quantitative detection of a DNA ligase reaction on a quartz-crystal microbalance. Nucleic Acids Symp Ser 2000:147-8. [PMID: 10780422 DOI: 10.1093/nass/42.1.147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We report here kinetic analyses of DNA ligation by using a DNA-immobilized quartz-crystal microbalance (QCM), which enables in situ real-time monitoring of both the binding of ligase and ligation reaction on DNA strands, as mass changes.
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Affiliation(s)
- Y Okahata
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Yokohama, Japan
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30
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Watanabe A, Furusawa H, Okahata Y. In situ monitoring of peptide-bound dsDNA selection on a GCN4-bZIP-immobilized quartz-crystal microbalance. Nucleic Acids Symp Ser 2000:193-4. [PMID: 10780445 DOI: 10.1093/nass/42.1.193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
A highly sensitive 27 MHz quartz-crystal microbalance (QCM) was applied as a device of dsDNA in vitro selection. When GCN4-bZIP peptides were immobilized on the small Au electrode of the QCM, dsDNAs having TGACTCA sequences could be mainly selected from DNA library having a 15-bp random region, which was consistent with the sequence observed by X-ray crystallography.
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Affiliation(s)
- A Watanabe
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Yokohama, Japan
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31
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Kataoka K, Furusawa H, Takagi K, Yamaguchi K, Suzuki S. Functional analysis of conserved aspartate and histidine residues located around the type 2 copper site of copper-containing nitrite reductase. J Biochem 2000; 127:345-50. [PMID: 10731703 DOI: 10.1093/oxfordjournals.jbchem.a022613] [Citation(s) in RCA: 116] [Impact Index Per Article: 4.8] [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: 11/14/2022] Open
Abstract
A heterologous expression system of the blue copper-containing nitrite reductase from Alcaligenes xylosoxidans GIFU1051 (AxgNIR) was constructed, and the purified recombinant enzyme was characterized. All the characteristic spectroscopic properties and enzyme activity of native AxgNIR were retained in the copper-reconstituted recombinant protein expressed in Escherichia coli, indicating the correct coordination of two types of Cu (type 1 and 2) in the recombinant enzyme. Moreover, two conserved noncoordinate residues, Asp98 and His255, located near the type 2 Cu site were replaced to elucidate the catalytic residue(s) of NIR. The Asp98 residue hydrogen-bonded to the water molecule ligating the type 2 Cu was changed to Ala, Asn, or Glu, and the His255 residue hydrogen-bonded to Asp98 through the water molecule was replaced with Ala, Lys, or Arg. The catalytic rate constants of all mutants were decreased to 0.4-2% of those of the recombinant enzyme, and the apparent K(m) values for nitrite were greatly increased in the Asp98 mutants. All the steady-state kinetic data of the mutants clearly demonstrate that both Asp98 and His255 are involved not only in the catalytic reaction but also in the substrate anchoring.
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Affiliation(s)
- K Kataoka
- Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-0043, Japan.
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Abstract
PURPOSE To evaluate the possibility of using sevoflurane for inhalation sedation. PATIENTS AND METHODS Thirty-five volunteers were divided randomly into two groups: sevoflurane group (n = 20) and nitrous oxide (N2O) group (n = 15). At the beginning of the sedation they all inhaled 100% O2, then a 0.1 minimum alveolar concentration (MAC) of sevoflurane or 10% N2O with oxygen, a 0.2 MAC of sevoflurane or 20% N2O with oxygen, and 0.3 MAC of sevoflurane or 30% N2O with oxygen for 10 minutes each. RESULTS The respiratory and cardiovascular functions were stable during inhalation of the gas mixtures. There were five negative comments about breathing N2O, but none about breathing sevoflurane. CONCLUSION All subjects in the sevoflurane group stated they would be willing to submit to the same inhalation procedure again.
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Affiliation(s)
- N Haraguchi
- 1st Department of Oral and Maxillofacial Surgery, Nagasaki University School of Dentistry, Japan
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33
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Yanase M, Kitano H, Furusawa H, Minoura M, Nagasawa M, Honma Y, Nishimoto Y, Kumada T, Nakano S, Toyoda H. [Trial of self-management of outpatients with implanted reservoir for arterial infusion of anticancer drugs]. Gan To Kagaku Ryoho 1994; 21 Suppl 4:471-6. [PMID: 7802452] [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: 01/27/2023]
Abstract
We attempted to instruct the outpatients with malignant liver tumor (metastatic liver cancer and advanced hepatocellular carcinoma) who received intermittent arterial infusion chemotherapy using implanted reservoir to detach the devices for arterial infusion by themselves at home. All patients who received our instruction could master self-detachment at home, which shortened the hospitalized day. And patients' desire for this treatment promoted with improvement of the recognition of their families to participate in treatment together. We experienced no trouble which disturb the treatment. This methods was considered to promote the improvement of QOL of these patients.
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Affiliation(s)
- M Yanase
- Dept. of Nursing Care, Ogaki Municipal Hospital
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34
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Shimomura T, Sato H, Furusawa H, Kimura Y, Okumoto H, Ito K, Hayakawa R, Hotta S. Intrachain conduction and main-chain conformation of conducting polymers as studied by frequency-domain electric birefringence spectroscopy. Phys Rev Lett 1994; 72:2073-2076. [PMID: 10055781 DOI: 10.1103/physrevlett.72.2073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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35
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Abstract
To understand the modulation of periodontal mechanoreceptor activity on mastication, the jaw-opening reflex (JOR) evoked by electrical stimulation of the inferior alveolar nerve (IAN) was studied during chewing in freely behaving rabbits. Spontaneous chewing movements were intact from the IAN stimulation below two times the threshold (T) which was measured at rest. As the stimulus intensity was increased to more than 2.5 T, the amplitude of the masseter activity decreased or it was abolished; however, the chewing rhythm was still maintained up to 3.0 T. When the low-threshold primary afferents were tested while the rabbit chewed pellets rhythmically, the amplitude in the JOR was inhibited below the prior control level. The inhibitory effect on the JOR was larger in the opening phase than that in the closing phase. In conclusion, the JOR was tonically depressed during the masticatory cycle and the inhibition of the JOR was rhythmically modulated in a phase-linked manner that was larger in the opening phase than in the closing phase.
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Affiliation(s)
- N Haraguchi
- 1st Department of Oral and Maxillofacial Surgery, Nagasaki University School of Dentistry, Japan
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36
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Shirasuna K, Watatani K, Furusawa H, Saka M, Morioka S, Yoshioka H, Matsuya T. Biological characterization of pseudocyst-forming cell lines from human adenoid cystic carcinomas of minor salivary gland origin. Cancer Res 1990; 50:4139-45. [PMID: 2162254] [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: 12/30/2022]
Abstract
Two cell lines (ACCS and ACCY) were isolated from two individuals with adenoid cystic carcinoma (AdCC) using tissue culture techniques. Both cell lines have similar morphology, i.e., elongated and flattened cells with slender cytoplasmic processes. The two cell lines tend to form pseudocysts, which are a specific architectural feature of AdCC. Coexpression of cytokeratin and vimentin was found in the two cell lines, which occasionally also contained S-100 protein and lactoferrin or lysozyme immunoreactivity. Moreover, ACCS and ACCY displayed potential for the production of a large amount of extracellular matrix including basal lamina components such as fibronectin, laminin, and type IV collagen and glycosaminoglycans which are also part of the basal lamina. These findings suggest that the tumor cells, probably basal or myoepithelial like cells, are responsible for the formation of the peculiar stroma of AdCC consisting of a large amount of collagen-like fibers, basal lamina components, and mucopolysaccharides.
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Affiliation(s)
- K Shirasuna
- First Department of Oral and Maxillofacial Surgery, Osaka University School of Dentistry, Japan
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37
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Shirasuna K, Furusawa H, Morioka S, Watatani K, Matsuya T. Different contents of glycosaminoglycans in a human neoplastic salivary duct cell line and its subclone with a myoepithelial phenotype. Virchows Arch B Cell Pathol Incl Mol Pathol 1989; 57:175-80. [PMID: 2570484 DOI: 10.1007/bf02899079] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The glycosaminoglycans (GAG) biosynthesized by a neoplastic human salivary duct cell line, HSGc, and by its nontumorigenic subclone, HSGc-E1, having a myoepithelial-like phenotype, were examined by incorporation of [3H]-acetate into GAG. The rate of GAG radiolabeling in HSGc-E1 was significantly greater than that in HSGc. The radiolabeled GAG recovered from HSGc-E1 showed a distribution of 22-32% in the cells and 68-78% secreted into the medium, while the amounts of GAG in the cells and medium of HSGc were equal. Two-dimensional electrophoresis of GAG extracted from the cells demonstrated that HSGc-E1 contained a much greater amount of heparan sulfate (HS, 53.5% of total), while HSGc synthesized hyaluronic acid (HA, 17.5%), HS 38.8%, chondroitin sulfate (Ch-S, 27.6%) and dermatan sulfate (DS, 16.1%). Moreover, treatment of HSGc with sodium butyrate or dibutyryl cyclic AMP (each is a potent inducer of differentiation to myoepithelial-like cells) strongly enhanced GAG synthesis, while dexamethasone (an inducer of differentiation to a more functional duct epithelium) did not stimulate GAG synthesis. These findings suggest that biosynthetic changes in the GAG content of neoplastic salivary cells are associated with their myoepithelial differentiation.
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Affiliation(s)
- K Shirasuna
- First Department of Oral and Maxillofacial Surgery, Osaka University Faculty of Dentistry, Japan
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38
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Furusawa H, Shirasuna K, Morioka S, Watatani K, Matsuya T. [Glycosaminoglycans produced by subclones of human salivary adenocarcinoma cell line]. Osaka Daigaku Shigaku Zasshi 1988; 33:462-7. [PMID: 3254969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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39
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Nagaya I, Furusawa H, Asai T. [Problems in the revision of failed total prosthetic replacement in rheumatoid arthritis. 3. Development of prosthetic loosening and revision surgery in RA]. Ryumachi 1988; 28:434-6. [PMID: 3249984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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40
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Shirasuna K, Morioka S, Watatani K, Hayashido Y, Furusawa H, Sugiyama M, Okura M, Matsuya T. Growth inhibition and differentiation of human salivary adenocarcinoma cells by medium conditioned with normal human fibroblasts. Cancer Res 1988; 48:2819-24. [PMID: 3359442] [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: 01/05/2023]
Abstract
The present study demonstrates that normal human fibroblasts (WI-38) exert a profound influence on the growth and differentiation of HSGc-C5, a clonal neoplastic epithelial cell line of human salivary gland origin. Coculture of HSGc-C5 with WI-38 resulted in a slowing of growth and an increase in glycosaminoglycan synthesis by an indirect effect involving a diffusible factor(s). Conditioned medium (CM) from WI-38 grown in Dulbecco's modified Eagle's medium supplemented with 10% fetal bovine serum affected HSGc-C5 as follows. The CM suppressed growth of monolayer cells; inhibited DNA synthesis; suppressed growth (decrease in size of colonies) in semisolid agar; stimulated glycosaminoglycan synthesis, induced expression of functional markers of the salivary gland, such as the secretory component, lactoferrin, and lysozyme; inhibited expression of alkaline phosphatase; and induced morphological alteration into elongated cells. These findings strongly suggest that WI-38 CM contains a factor(s) which inhibits growth and induces differentiation of HSGc-C5. The CM was also active on other human cancer cells as a growth inhibitor, but not on normal human fibroblasts. Partial purification and characterization of the factor(s) suggests that it may be a novel protein carrying both tumor inhibiting and differentiation inducing activities.
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Affiliation(s)
- K Shirasuna
- First Department of Oral and Maxillofacial Surgery, Osaka University School of Dentistry, Japan
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41
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Nishizawa M, Nomoto K, Hosoi T, Okada T, Yamada K, Makino T, Shiga T, Furusawa H, Kuniyoshi N, Maeda I. [Detection and prognosis of alimentary tract cancers--mass screening]. Gan No Rinsho 1987; 33:382-5. [PMID: 3573311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The limitation of detectability and curability in terms of current techniques (screening and details) were sought in otherwise healthy examinees. Not a few cancers were present in the alimentary tract, except for the stomach, in these otherwise healthy examinees who voluntarily underwent gastric cancer mass screening. The prognosis of alimentary tract cancers deteriorates in the descending, following order: colon cancer, stomach cancer, and esophageal cancer. The survival rate of primary liver cancer, cholecyst cancer, and pancreas cancer is extremely low. Unless new techniques are developed in these diagnoses, no improvement in the survival rate can be anticipated.
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42
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Furusawa H. [Radiosensitivity of carcinoma of the esophagus]. Nihon Igaku Hoshasen Gakkai Zasshi 1986; 46:367-81. [PMID: 3014431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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43
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Nishizawa M, Yamaki G, Nomoto K, Hosoi T, Okada T, Makino T, Yamada K, Shiga T, Etoh K, Furusawa H. [Early detection of esophageal cancers, with special reference to the intraepithelial stage]. Gan No Rinsho 1984; 30:226-9. [PMID: 6716654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Panendoscopic examination, performed in 4,130 healthy males older than 50 years, detected 9 esophageal cancers (0.22%). Of these, 6 were classified as early esophageal cancer, and 3 of these 6 had intraepithelial cancers. In efforts to detect early esophageal cancers, especially at the intraepithelial cancer stage, panendoscopic examination seems to be highly useful.
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44
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Eto K, Nishizawa M, Makino T, Furusawa H, Nakamura K. Abnormal pit patterns seen through a dissecting microscope, with special reference to "abnormal mucosal patterns" showing no histologically perceptive abnormalities. ACTA ACUST UNITED AC 1984. [DOI: 10.3862/jcoloproctology.37.691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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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45
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Terada Y, Yamazaki O, Furusawa H, Hirose H, Miyazaki T, Sasakura H, Hanada K, Hanai N. [The unusual alignment with unusual extraction in the upper and lower anterior segments]. Nihon Kyosei Shika Gakkai Zasshi 1982; 41:355-68. [PMID: 6957497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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46
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Furusawa H. [Growth and development of the dental arch, alveolar ridge, and palate on the lateral segment mainly in the early period of mixed dentition (author's transl)]. Shikwa Gakuho 1980; 80:1337-1415. [PMID: 6939130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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47
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Suda N, Furusawa H, Sugihara A, Yakushiji M, Machida Y. [Changes of the teeth with probable high resistance to dental caries attack in the cariogenic oral environments (author's transl)]. Shikwa Gakuho 1979; 79:1073-77. [PMID: 298075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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48
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Yoshida H, Ishii N, Furusawa H, Tanakamaru H, Machida Y. [Toothbrushing force and the number of strokes at the various condition (author's transl)]. Shikwa Gakuho 1978; 78:1335-42. [PMID: 297352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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49
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Shimizu T, Hashimoto T, Matsuo T, Tominaga S, Ida T, Furusawa H. [Clinico-pathological studies on vasculo-Behçet's syndrome (author's transl)]. Nihon Rinsho 1978; 36:798-807. [PMID: 671755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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