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Tatsuno S, Doi H, Okada W, Inoue E, Nakamura K, Sano K, Wada Y, Uehara T, Inada M, Nakamatsu K, Monzen K, Hosono M, Matsumoto K, Tanooka M, Tanaka M, Nishimura Y. PO-1173 Previous pneumectomy is a risk factor of severe radiation pneumonitis after IMRT for lung cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07624-6] [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]
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Yonekura Y, Mattsson S, Flux G, Bolch WE, Dauer LT, Fisher DR, Lassmann M, Palm S, Hosono M, Doruff M, Divgi C, Zanzonico P. ICRP Publication 140: Radiological Protection in Therapy with Radiopharmaceuticals. Ann ICRP 2019; 48:5-95. [PMID: 31565950 DOI: 10.1177/0146645319838665] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Radiopharmaceuticals are increasingly used for the treatment of various cancers with novel radionuclides, compounds, tracer molecules, and administration techniques. The goal of radiation therapy, including therapy with radiopharmaceuticals, is to optimise the relationship between tumour control probability and potential complications in normal organs and tissues. Essential to this optimisation is the ability to quantify the radiation doses delivered to both tumours and normal tissues. This publication provides an overview of therapeutic procedures and a framework for calculating radiation doses for various treatment approaches. In radiopharmaceutical therapy, the absorbed dose to an organ or tissue is governed by radiopharmaceutical uptake, retention in and clearance from the various organs and tissues of the body, together with radionuclide physical half-life. Biokinetic parameters are determined by direct measurements made using techniques that vary in complexity. For treatment planning, absorbed dose calculations are usually performed prior to therapy using a trace-labelled diagnostic administration, or retrospective dosimetry may be performed on the basis of the activity already administered following each therapeutic administration. Uncertainty analyses provide additional information about sources of bias and random variation and their magnitudes; these analyses show the reliability and quality of absorbed dose calculations. Effective dose can provide an approximate measure of lifetime risk of detriment attributable to the stochastic effects of radiation exposure, principally cancer, but effective dose does not predict future cancer incidence for an individual and does not apply to short-term deterministic effects associated with radiopharmaceutical therapy. Accident prevention in radiation therapy should be an integral part of the design of facilities, equipment, and administration procedures. Minimisation of staff exposures includes consideration of equipment design, proper shielding and handling of sources, and personal protective equipment and tools, as well as education and training to promote awareness and engagement in radiological protection. The decision to hold or release a patient after radiopharmaceutical therapy should account for potential radiation dose to members of the public and carers that may result from residual radioactivity in the patient. In these situations, specific radiological protection guidance should be provided to patients and carers.
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Nakahara K, Fuchino K, Komano K, Asada N, Tadano G, Hasegawa T, Yamamoto T, Sako Y, Ogawa M, Unemura C, Hosono M, Ito H, Sakaguchi G, Ando S, Ohnishi S, Kido Y, Fukushima T, Dhuyvetter D, Borghys H, Gijsen HJM, Yamano Y, Iso Y, Kusakabe KI. Discovery of Potent and Centrally Active 6-Substituted 5-Fluoro-1,3-dihydro-oxazine β-Secretase (BACE1) Inhibitors via Active Conformation Stabilization. J Med Chem 2018; 61:5525-5546. [DOI: 10.1021/acs.jmedchem.8b00011] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Fuchino K, Mitsuoka Y, Masui M, Kurose N, Yoshida S, Komano K, Yamamoto T, Ogawa M, Unemura C, Hosono M, Ito H, Sakaguchi G, Ando S, Ohnishi S, Kido Y, Fukushima T, Miyajima H, Hiroyama S, Koyabu K, Dhuyvetter D, Borghys H, Gijsen HJM, Yamano Y, Iso Y, Kusakabe KI. Rational Design of Novel 1,3-Oxazine Based β-Secretase (BACE1) Inhibitors: Incorporation of a Double Bond To Reduce P-gp Efflux Leading to Robust Aβ Reduction in the Brain. J Med Chem 2018; 61:5122-5137. [DOI: 10.1021/acs.jmedchem.8b00002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Morimoto H, Fujiwara Y, Hosono M, Matsuda S, Amano K, Okazaki E, Miki Y, Tsutsumi S, Osugi H, Miki Y. Treatment Results of Neoadjuvant Chemoradiation Therapy Followed by Radical Esophagectomy in Patients With Initially Inoperable Thoracic Esophageal Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Okazaki E, Ishii K, Hosono M, Ogino R, Tsutsumi S, Miki Y. Postimplant Segmental Dosimetry, Biochemical Relapse, and Toxicity in Patients With Prostate Cancer Treated With Loose Iodine-125 Seeds. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yasuo S, Kenichi Y, Ueno N, Arimoto A, Hosono M, Yoshikawa T, Toyokawa A, Kakeji Y, Tsai Y, Tsai C, Sul J, Lim M, Park J, Jang CE, Santilli O, Tripoloni D, Santilli H, Nardelli N, Greco A, Estevez M, Sakurai S, Ryu S, Cesana G, Ciccarese F, Uccelli M, Grava G, Castello G, Carrieri D, Legnani G, Olmi S, Naito M, Yamamoto H, Sawada Y, Mandai Y, Asano H, Ino H, Tsukuda K, Nagahama T, Ando M, Ami K, Arai K, Miladinovic M, Kitanovic A, Lechner M, Mayer F, Meissnitzer M, Fortsner R, Öfner D, Köhler G, Jäger T, Kumata Y, Fukushima R, Inaba T, Yaguchi Y, Horikawa M, Ogawa E, Katayama T, Kumar PS, Unal D, Caparlar C, Akkaya T, Mercan U, Kulacoglu H, Barreiro JJ, Baer IG, García LS, Cumplido PL, Florez LJG, Muñiz PF, Fujino K, Mita K, Ohta E, Takahashi K, Hashimoto M, Nagayasu K, Murabayashi R, Asakawa H, Koizumi K, Hayashi G, Ito H, Felberbauer F, Strobl S, Kristo I, Riss S, Prager G, El Komy H, El Gendi A, Nabil W, Karam M, El Kayal S, Chihara N, Suzuki H, Watanabe M, Uchida E, Chen T, Wang J, Wang H, Bouchiba N, Elbakary T, Ramadan A, Elakkad M, Berney C, Vlasov V, Babii I, Pidmurnyak O, Prystupa M, Asakage N, Molinari P, Contino E, Guzzetti L, Oggioni M, Sambuco M, Berselli M, Farassino L, Cocozza E, Crespi A, Ambrosoli A, Zhao Y. Topic: Inguinal Hernia - Unsolved problem in the daily practice. Hernia 2015; 19 Suppl 1:S293-304. [PMID: 26518826 DOI: 10.1007/bf03355374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- S Yasuo
- Department of Surgery. Social Welfare Organization Saiseikai Imperial Gift Foundation, Inc. Saiseikai Wakakusa Hospital, Yokohama, Japan
| | - Y Kenichi
- Department of Surgery. Social Welfare Organization Saiseikai Imperial Gift Foundation, Inc. Saiseikai Wakakusa Hospital, Yokohama, Japan
| | - N Ueno
- Department of General Surgery, Yodogawa Christian Hospital, Osaka, Japan
| | - A Arimoto
- Department of General Surgery, Takatsuki General Hospital, Takatsuki, Japan
| | - M Hosono
- Division of Gastrointestinal Surgery, Kobe University Hospital, Kobe, Japan
| | - T Yoshikawa
- Department of General Surgery, Takatsuki General Hospital, Takatsuki, Japan
| | - A Toyokawa
- Department of General Surgery, Yodogawa Christian Hospital, Osaka, Japan
| | - Y Kakeji
- Division of Gastrointestinal Surgery, Kobe University Hospital, Kobe, Japan
| | - Y Tsai
- Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
| | - C Tsai
- Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - J Sul
- Chungnam National University Hospital, Daejeon, South Korea
| | - M Lim
- Chungnam National University Hospital, Daejeon, South Korea
| | - J Park
- Chungnam National University Hospital, Daejeon, South Korea
| | | | - O Santilli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - D Tripoloni
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - H Santilli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - N Nardelli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - A Greco
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - M Estevez
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - S Sakurai
- St. Luke's International Hospital, Tokyo, Japan
| | - S Ryu
- Samsung Changwon Hospital, Changwon-si, Gyeongsangnam-do, South Korea
| | - G Cesana
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - F Ciccarese
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - M Uccelli
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Grava
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Castello
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - D Carrieri
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Legnani
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - S Olmi
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - M Naito
- Department of Surgery, Okayama Medical Center, Okayama, Japan
| | - H Yamamoto
- Department of Surgery, Okayama Medical Center, Okayama, Japan
| | - Y Sawada
- Himeji Daiichi Hospital, Himeji, Japan
| | - Y Mandai
- Okayama University Hospital, Okayama, Japan
| | - H Asano
- Okayama University Hospital, Okayama, Japan
| | - H Ino
- Okayama University Hospital, Okayama, Japan
| | - K Tsukuda
- Okayama University Hospital, Okayama, Japan
| | - T Nagahama
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - M Ando
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - K Ami
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - K Arai
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | | | - A Kitanovic
- Surgery ward, General hospital, Krusevac, Serbia
| | - M Lechner
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - F Mayer
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - M Meissnitzer
- Department of Radiology, Paracelsus Medical University, Salzburg, Austria
| | - R Fortsner
- Department of Radiology, Paracelsus Medical University, Salzburg, Austria
| | - D Öfner
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - G Köhler
- Department of General Surgery, Sisters of Charity Hospital, Linz, Austria
| | - T Jäger
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - Y Kumata
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - R Fukushima
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - T Inaba
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - Y Yaguchi
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - M Horikawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - E Ogawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - T Katayama
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - P S Kumar
- ESI-PGIMSR and Medical College, Bangalore, India
| | - D Unal
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - C Caparlar
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - T Akkaya
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - U Mercan
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - H Kulacoglu
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | | | | | | | | | | | | | - K Fujino
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Mita
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - E Ohta
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Takahashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - M Hashimoto
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Nagayasu
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - R Murabayashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - H Asakawa
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Koizumi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - G Hayashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - H Ito
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - F Felberbauer
- Div. of General Surgery, Dpt. of Surgery, Medical University of Vienna, Vienna, Austria
| | | | | | | | | | - H El Komy
- Faculty of medicine, Alexandria, Egypt
| | | | - W Nabil
- Faculty of medicine, Alexandria, Egypt
| | - M Karam
- Faculty of medicine, Alexandria, Egypt
| | | | - N Chihara
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - H Suzuki
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - M Watanabe
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - E Uchida
- Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - T Chen
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Wang
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - H Wang
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - N Bouchiba
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - T Elbakary
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - A Ramadan
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - M Elakkad
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - C Berney
- Bankstown-Lidcombe Hospital, University of NSW, Sydney, Australia
| | - V Vlasov
- Khmelnitskiy regional hospital, Khmelnitskiy, Ukraine
| | | | | | | | - N Asakage
- Department of Surgery, Tsudanuma Central General Hospital, Chiba, Japan
| | - P Molinari
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - E Contino
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - L Guzzetti
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Oggioni
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Sambuco
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Berselli
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - L Farassino
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - E Cocozza
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - A Crespi
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - A Ambrosoli
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - Y Zhao
- Department of vascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Hosono M, Tachibana I, Nishimura Y, Hanaoka K, Kanamori S, Nakamatsu K, Shibata T, Ishikawa K, Tamura M. Heterogeneity of Intratumoral Hypoxia on FMISO PET/CT in Association With Local Control in Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2289] [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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Yonezawa S, Fujiwara K, Yamamoto T, Hattori K, Yamakawa H, Muto C, Hosono M, Tanaka Y, Nakano T, Takemoto H, Arisawa M, Shuto S. Conformational restriction approach to β-secretase (BACE1) inhibitors III: effective investigation of the binding mode by combinational use of X-ray analysis, isothermal titration calorimetry and theoretical calculations. Bioorg Med Chem 2013; 21:6506-22. [PMID: 24051074 DOI: 10.1016/j.bmc.2013.08.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [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: 06/29/2013] [Revised: 08/18/2013] [Accepted: 08/20/2013] [Indexed: 12/22/2022]
Abstract
For further investigation of BACE1 inhibitors using conformational restriction with sp(3) hybridized carbon, we applied this approach to 6-substituted aminopyrimidone derivatives 3 to improve the inhibitory activity by reducing the entropic energy loss upon binding to BACE1. Among eight stereoisomers synthesized, [trans-(1'R,2'R),6S] isomer 6 exhibited the best BACE1 inhibitory activity, which was statistically superior to that of the corresponding ethylene linker compound (R)-3. Combinational examinations of the binding mode of 6 were performed, which included isothermal titration calorimetry (ITC), X-ray crystallographic structure analysis and theoretical calculations, to clarify the effect of our conformational restriction approach. From the ITC measurement, the binding entropy of 6 was found to be ∼0.5kcal larger than that of (R)-3, which is considered to be affected by conformational restriction with a cyclopropane ring.
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Affiliation(s)
- Shuji Yonezawa
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd, Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan; Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan.
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Nitta K, Ozaki K, Tsukamoto Y, Hosono M, Ogawakonno Y, Kawauchi H, Takayanagi Y, Tsuiki S, Hakomori S. Catalytic lectin (leczyme) from bullfrog (Rana catesbeiana) eggs. Int J Oncol 2013; 9:19-23. [PMID: 21541475 DOI: 10.3892/ijo.9.1.19] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Catalytic lectins (leczymes) of frog eggs are sialic acid-binding lectins that have intrinsic RNase activity. They inhibit tumor cell proliferation in vitro and in vivo, although their cytotoxic mechanism remains unclear. RNase A has no tumoricidal activity. It is hypothesized that leczymes bind to cell surface sialoglycoconjugate receptors, enter the cell, and subsequently degrade RNA. In order to investigate the cytotoxic mechanism of cSBL, a leczyme from Rana catesbeiana eggs, we established cSBL-resistant clone RC-150 from mouse leukemia P388 cells. cSBL-treated P388 cells showed extensive RNA degradation over the course of 1 h, whereas cSBL-treated RC-150 cells showed no RNA degradation even over the course of 24 h. Treatment of P388 cells with cSBL led to decreased concentration of intracellular Ca2+, decreased protein kinase A activity, and increased protein kinase G activity. Incubation with cSBL decreased glutathione levels and enhanced glutathione-S-transferase (GST) activity in P388 cells, but had no effect on RC-150 cells. We conclude that cSBL-specific degradation of RNA occurs in cSBL-sensitive tumor cells, that cSBL leads to alteration of signal transduction and an intracellular protein kinase cascade reaction, and that internalized cSBL is detoxified by GST or thioltransferase. Our findings support a bifunctional model in which a leczyme is both an adhesive protein (binding to sialoglycoconjugates) and an enzyme (displaying RNnase activity).
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Affiliation(s)
- K Nitta
- UNIV WASHINGTON, SEATTLE, WA 98119 USA. BIOMEMBRANE INST, SEATTLE, WA 98119 USA
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Nakada R, Tatsumi D, Takemura A, Ienaga A, Yomoda A, Inoue M, Ichida T, Hosono M. SU-E-J-14: Evaluation of MV and KV Isocenter Displacement for An IGRT Linac with and Without An Add-On Micro-Multileaf Collimator. Med Phys 2013. [DOI: 10.1118/1.4814226] [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: 11/07/2022] Open
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Miki Y, Hosono M, Masuoka Y, Ogino R, tsutsumi S, Maekado T, Takada Y, Shimatani Y, Miki Y. Impact of Chemoradiation Therapy Using Docetaxel for Treatment of Scalp Angiosarcoma. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1750] [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: 10/27/2022]
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Yonezawa S, Yamamoto T, Yamakawa H, Muto C, Hosono M, Hattori K, Higashino K, Yutsudo T, Iwamoto H, Kondo Y, Sakagami M, Togame H, Tanaka Y, Nakano T, Takemoto H, Arisawa M, Shuto S. Conformational Restriction Approach to β-Secretase (BACE1) Inhibitors: Effect of a Cyclopropane Ring To Induce an Alternative Binding Mode. J Med Chem 2012; 55:8838-58. [PMID: 22998419 DOI: 10.1021/jm3011405] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shuji Yonezawa
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo
060-0812, Japan
| | - Takahiko Yamamoto
- Pharmaceutical Research Division, Medicinal Research Laboratories, and Innovative Drug Discovery Research Laboratories, Shionogi & Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Hidekuni Yamakawa
- Pharmaceutical Research Division, Medicinal Research Laboratories, and Innovative Drug Discovery Research Laboratories, Shionogi & Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Chie Muto
- Pharmaceutical Research Division, Medicinal Research Laboratories, and Innovative Drug Discovery Research Laboratories, Shionogi & Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Motoko Hosono
- Pharmaceutical Research Division, Medicinal Research Laboratories, and Innovative Drug Discovery Research Laboratories, Shionogi & Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Kazunari Hattori
- Pharmaceutical Research Division, Medicinal Research Laboratories, and Innovative Drug Discovery Research Laboratories, Shionogi & Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Kenichi Higashino
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan
| | - Takashi Yutsudo
- Pharmaceutical Research Division, Medicinal Research Laboratories, and Innovative Drug Discovery Research Laboratories, Shionogi & Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Hideo Iwamoto
- Shionogi Techno Advance Research
Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Yutaka Kondo
- Shionogi Techno Advance Research
Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Masahiro Sakagami
- Pharmaceutical Research Division, Medicinal Research Laboratories, and Innovative Drug Discovery Research Laboratories, Shionogi & Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Hiroko Togame
- Quality, Safety and Regulatory Affairs Management Division, Shionogi & Co., Ltd., 1-8, Doshomachi 3-chome, Chuo-ku, Osaka 541-0045, Japan
| | - Yoshikazu Tanaka
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan
| | - Toru Nakano
- Shionogi Innovation Center for Drug Discovery, Shionogi & Co., Ltd., Kita-21 Nishi-11 Kita-ku, Sapporo 001-0021, Japan
| | - Hiroshi Takemoto
- Pharmaceutical Research Division, Medicinal Research Laboratories, and Innovative Drug Discovery Research Laboratories, Shionogi & Co., Ltd., 1-1, Futaba-cho 3-chome, Toyonaka, Osaka 561-0825, Japan
| | - Mitsuhiro Arisawa
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo
060-0812, Japan
| | - Satoshi Shuto
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo
060-0812, Japan
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14
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Maegawa J, Hosono M, Tomoeda H, Tosaki A, Kobayashi S, Iwai T. Net Effect of Lymphaticovenous Anastomosis on Volume Reduction of Peripheral Lymphoedema after Complex Decongestive Physiotherapy. Eur J Vasc Endovasc Surg 2012; 43:602-8. [DOI: 10.1016/j.ejvs.2011.12.032] [Citation(s) in RCA: 23] [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] [Received: 09/30/2011] [Accepted: 12/24/2011] [Indexed: 11/28/2022]
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15
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Yokota S, Sugita H, Ardiyanti A, Shoji N, Nakajima H, Hosono M, Otomo Y, Suda Y, Katoh K, Suzuki K. Contributions ofFASNandSCDgene polymorphisms on fatty acid composition in muscle from Japanese Black cattle. Anim Genet 2012; 43:790-2. [DOI: 10.1111/j.1365-2052.2012.02331.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2011] [Indexed: 11/27/2022]
Affiliation(s)
- S. Yokota
- Graduate School of Agricultural Science; Tohoku University; Sendai; Miyagi; 981-8555; Japan
| | - H. Sugita
- Graduate School of Agricultural Science; Tohoku University; Sendai; Miyagi; 981-8555; Japan
| | - A. Ardiyanti
- Graduate School of Agricultural Science; Tohoku University; Sendai; Miyagi; 981-8555; Japan
| | - N. Shoji
- Yamagata Prefectural Animal Industrial Institute; Agricultural Research Center; Shinjo; Yamagata; 996-0041; Japan
| | - H. Nakajima
- Yamagata Prefectural Animal Industrial Institute; Agricultural Research Center; Shinjo; Yamagata; 996-0041; Japan
| | - M. Hosono
- National Livestock Breeding Center; Nishishirakawa; Fukushima; 961-8511; Japan
| | - Y. Otomo
- Head Office of Miyagi; National Federation of Agricultural Cooperative Associations; Sendai; Miyagi; 980-0011; Japan
| | - Y. Suda
- School of Food; Agricultural and Environmental Sciences; Miyagi University; Sendai; Miyagi; 982-1215; Japan
| | - K. Katoh
- Graduate School of Agricultural Science; Tohoku University; Sendai; Miyagi; 981-8555; Japan
| | - K. Suzuki
- Graduate School of Agricultural Science; Tohoku University; Sendai; Miyagi; 981-8555; Japan
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16
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Mikami T, Hosono M, Yabuki Y, Yamamoto Y, Yasumura K, Sawada H, Shizukuishi K, Maegawa J. Classification of lymphoscintigraphy and relevance to surgical indication for lymphaticovenous anastomosis in upper limb lymphedema. Lymphology 2011; 44:155-167. [PMID: 22458117] [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: 05/31/2023]
Abstract
Upper limb lymphedema that develops after breast cancer surgery causes physical discomfort and psychological distress, and it can require both conservative and surgical treatment. Lymphaticovenous anastomosis has been reported to be an effective treatment; however the disease severity criteria that define indications for this treatment remain unclear. Here, we examined lymphoscintigraphic findings in 78 patients with secondary upper limb lymphedema and classified them into 5 major types (Type I-V) and 3 subtypes (Subtype E, L, and 0). Results revealed that this classification is related to the clinical stage scale of the International Society of Lymphology. Based on intraoperative examination findings in 20 of the 78 patients, lymphatic pressure is likely to be further elevated in Type II-V cases which are characterized by the presence of dermal back flow. Therefore, lymphaticovenous anastomosis should be considered as a treatment option for lymphedema in Type II-V cases. Furthermore, there are only limited lymph vessel sites usable for lymphaticovenous anastomosis in more severe lymphedema types [Types IV and Type V (which is characterized by dermal backflow only in the hand)]. The findings in Type IV-V cases suggest that therapeutic strategies for severe upper limb lymphedema need further consideration.
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Affiliation(s)
- T Mikami
- Department of Plastic and Reconstructive Surgery, Yokohama City University Hospital, Yokohama, Japan.
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17
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Hosono M, Maeda R, Yoshimoto N, Yamamoto S. Rational Method for Designing Efficient Chromatography Processes based on the Iso-Resolution Curve. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201100356] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Tachibana I, Nishimura Y, Shibata T, Kanamori S, Nakamatsu K, Tamura M, Koike R, Nishikawa T, Ishikawa K, Hosono M. A Prospective Clinical Trial on Tumor Hypoxia Imaging with 18F-misonidazole (F-MISO) Positron Emission Tomography (PET). Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1304] [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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19
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Nakada R, Tatsumi D, Sahara T, Inoue M, Ichida T, Hosono M. SU-E-J-12: Flex Compensation for a KV Cone Beam Computed Tomography System Integrated with Linear Accelerator: A Comparison with and without Add-On Micro Multi-Leaf Collimator. Med Phys 2011. [DOI: 10.1118/1.3611780] [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: 11/07/2022] Open
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20
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Seo H, Sasaki Y, Hirai H, Hosono M, Sakaguchi M, Nagashima F, Nakahira A, Morisaki A, Okada Y, Suehiro S. [Intermittent opening of a mechanical mitral valve prosthesis due to pannus formation; report of a case]. Kyobu Geka 2011; 64:415-418. [PMID: 21591446] [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: 05/30/2023]
Abstract
A 76-year-old woman with a history of severe mitral valve stenosis had undergone mitral valve replacement with a 27 mm St. Jude Medical (SJM) valve in 1991. Follow-up transthoracic echocardiography revealed an increase in the pressure gradient across the mitral prosthesis 16 years after the surgery. Prosthetic valve dysfunction was suspected, but transesophageal echocardiography and cineradiography failed to show mechanical valve dysfunction. Two years later, she presented with dyspnea on exertion and leg edema. Cineradiography revealed intermittent restriction of the opening of the mechanical valve leaflet approximately every 10 beats. Thus, we diagnosed intermittent prosthetic valve dysfunction and performed a reoperation. On inspection of the prosthesis, we observed semicircular pannus formation around the posterior leaflet in the ventricular side. It was considered that the pannus tissue had interfered with 1 leaflet opening of the mitral valve prosthesis, resulting in intermittent valve dysfunction. We replaced the prosthesis with a new 25 mm SJM valve. The patient was discharged after confirmation of normal prosthetic function.
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Affiliation(s)
- H Seo
- Department of Cardiovascular Surgery, Osaka City University Graduate School, Osaka, Japan
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21
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Hosono M, Suehiro S. [Graft harvesting in coronary artery bypass grafting]. Kyobu Geka 2010; 63:666-670. [PMID: 20715437] [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: 05/29/2023]
Abstract
The technique of graft harvesting during coronary artery bypass grafting (CABG) consists of 2 main components: the vessel exposure at an adequate layer and the division of branches. Recently, the ultrasonic scalpel has been used for skeletonization of arterial grafts. A hook-type tip is used for the internal thoracic artery and the radial artery graft, while a shear type tip is used for the right gastroepiploic artery graft. The ultrasonic scalpel is useful both for graft vessel exposure and for the division of branches. The cavitation phenomenon is useful for the vessel exposure, while ultrasonic protein coagulation is useful for the division of branches. In endoscopic saphenous vein graft harvesting, electrocautery scissors are used for the division of branches. Avoiding thermal damage to the graft vessel is important in the use of either device. In any graft harvesting, direct contact with the main trunk should be avoided as much as possible to prevent damage. A thorough knowledge of the anatomy of the graft vessel and the surrounding organs is necessary for graft harvesting and to avoid complications. Furthermore, an understanding of characteristics of the harvesting devices is also important.
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Affiliation(s)
- M Hosono
- Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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22
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Yanagisawa Y, Nakagome H, Tennmei K, Hamada M, Yoshikawa M, Otsuka A, Hosono M, Kiyoshi T, Takahashi M, Yamazaki T, Maeda H. Operation of a 500 MHz high temperature superconducting NMR: towards an NMR spectrometer operating beyond 1 GHz. J Magn Reson 2010; 203:274-82. [PMID: 20149698 DOI: 10.1016/j.jmr.2010.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 01/14/2010] [Accepted: 01/15/2010] [Indexed: 05/15/2023]
Abstract
We have begun a project to develop an NMR spectrometer that operates at frequencies beyond 1 GHz (magnetic field strength in excess of 23.5 T) using a high temperature superconductor (HTS) innermost coil. As the first step, we developed a 500 MHz NMR with a Bi-2223 HTS innermost coil, which was operated in external current mode. The temporal magnetic field change of the NMR magnet after the coil charge was dominated by (i) the field fluctuation due to a DC power supply and (ii) relaxation in the screening current in the HTS tape conductor; effect (i) was stabilized by the 2H field-frequency lock system, while effect (ii) decreased with time due to relaxation of the screening current induced in the HTS coil and reached 10(-8)(0.01 ppm)/h on the 20th day after the coil charge, which was as small as the persistent current mode of the NMR magnet. The 1D (1)H NMR spectra obtained by the 500 MHz LTS/HTS magnet were nearly equivalent to those obtained by the LTS NMR magnet. The 2D-NOESY, 3D-HNCO and 3D-HNCACB spectra were achieved for ubiquitin by the 500 MHz LTS/HTS magnet; their quality was closely equivalent to that achieved by a conventional LTS NMR. Based on the results of numerical simulation, the effects of screening current-induced magnetic field changes are predicted to be harmless for the 1.03 GHz NMR magnet system.
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Affiliation(s)
- Y Yanagisawa
- Systems and Structural Biology Center, RIKEN, Yokohama 230-0045, Japan
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23
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Kawsar SMA, Matsumoto R, Fujii Y, Yasumitsu H, Dogasaki C, Hosono M, Nitta K, Hamako J, Matsui T, Kojima N, Ozeki Y. Purification and biochemical characterization of a D-galactose binding lectin from Japanese sea hare (Aplysia kurodai) eggs. Biochemistry (Mosc) 2009; 74:709-16. [PMID: 19747090 DOI: 10.1134/s0006297909070025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A lectin was purified from Japanese sea hare Aplysia kurodai by lactosyl-agarose affinity chromatography. The molecular mass of the lectin was determined to be 56 and 32 kDa by SDS-PAGE under non-reducing and reducing conditions, respectively. It was found to agglutinate trypsinized and glutaraldehyde-fixed rabbit and human erythrocytes in the absence of divalent cations. The lectin exhibited stable thermo-tolerance as it retained hemagglutinating activity for 1 h even at 80 degrees C and showed stability at pH 10. By contrast, it was very sensitive at pH less than 5 and in the presence of the sulfhydryl-group preserving reagent, beta-mercaptoethanol. The hemagglutinating activity by the lectin was specifically inhibited by D-galactose, galacturonic acid, methyl-alpha- and methyl-beta-D-galactopyranoside, lactose, melibiose, and asialofetuin. The association rate constant (k(ass)) and dissociation rate constant (k(diss)) were determined for the lectin to be 4.3 x 10(5) M(-1) x sec(-1) and 2.2 x 10(-3) sec(-1), respectively, using a surface plasmon resonance biosensor. The lectin moderately inhibited cell proliferation in the P388 cell line dose dependently. Interestingly, lectin-treated cells did not show a fragmented DNA ladder as is caused by apoptosis, suggesting that the cell proliferation inhibition was caused by another unknown mechanism.
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Affiliation(s)
- S M A Kawsar
- Laboratory of Marine Biochemistry, Department of Environmental Biosciences, International Graduate School of Arts and Sciences, Yokohama City University, Yokohama, 236-0027, Japan
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24
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Itoh N, Okochi M, Tagami S, Nishitomi K, Nakayama T, Yanagida K, Fukumori A, Jiang J, Mori K, Hosono M, Kikuchi J, Nakano Y, Takinami Y, Dohi K, Nishigaki A, Takemoto H, Minagawa K, Katoh T, Willem M, Haass C, Morihara T, Tanaka T, Kudo T, Hasegawa H, Nishimura M, Sakaguchi G, Kato A, Takeda M. Destruxin E decreases Beta-amyloid generation by reducing colocalization of beta-amyloid-cleaving enzyme 1 and beta-amyloid protein precursor. NEURODEGENER DIS 2009; 6:230-9. [PMID: 19738368 DOI: 10.1159/000236902] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Accepted: 06/08/2009] [Indexed: 11/19/2022] Open
Abstract
Alzheimer-disease-associated beta-amyloid (Abeta) is produced by sequential endoproteolysis of beta-amyloid protein precursor (betaAPP): the extracellular portion is shed by cleavage in the juxtamembrane region by beta-amyloid-cleaving enzyme (BACE)/beta-secretase, after which it is cleaved by presenilin (PS)/gamma-secretase near the middle of the transmembrane domain. Thus, inhibition of either of the secretases reduces Abeta generation and is a fundamental strategy for the development of drugs to prevent Alzheimer disease. However, it is not clear how small compounds reduce Abeta production without inhibition of the secretases. Such compounds are expected to avoid some of the side effects of secretase inhibitors. Here, we report that destruxin E (Dx-E), a natural cyclic hexadepsipeptide, reduces Abeta generation without affecting BACE or PS/gamma-secretase activity. In agreement with this, Dx-E did not inhibit Notch signaling. We found that Dx-E decreases colocalization of BACE1 and betaAPP, which reduces beta-cleavage of betaAPP. Therefore, the data demonstrate that Dx-E represents a novel Abeta-reducing process which could have fewer side effects than secretase inhibitors.
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Affiliation(s)
- Naohiro Itoh
- Psychiatry, Department of Integrated Medicine, Division of Internal Medicine, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
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25
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Nakada R, Tatsumi D, Sakamoto M, Inoue M, Ichida T, Ishii K, Tsutsumi S, Ogino R, Hosono M. DOSIMETRIC PERFORMANCE OF A 2D DIODE ARRAY FOR VERIFICATION OF VOLUMETRIC MODULATED ARC THERAPY. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)73155-9] [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: 11/29/2022]
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26
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Tatsumi D, Nakada R, Ishii K, Tsutsumi L, Sakamoto M, Inoue M, Ogino R, Ichida T, Hosono M. VERIFICATION OF LINAC CONTROL PERFORMANCE DURING VMAT DELIVERY BASED ON LOG FILE ANALYSIS. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)73111-0] [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: 10/27/2022]
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27
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Ogino R, Hosono M, Ishii K, Tsutsumi S, Nakada R, Tatsumi D, Tada T, Takada Y, Kawai M, Miki Y. VOLUMETRIC MODULATED ARC THERAPY (VMAT) WITHOUT BODY-FRAME FOR PORTAL VEIN THROMBUS OF HEPATOCELLULAR CARCINOMA. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)73115-8] [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: 10/27/2022]
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28
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Hoque M, Hosono M, Suzuki K. Genetic parameters for dry matter, energy and protein intake, and their relationships with performance and carcass traits in Japanese Black cattle. J Anim Breed Genet 2009; 126:14-21. [DOI: 10.1111/j.1439-0388.2008.00752.x] [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: 11/26/2022]
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29
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Hoque MA, Hosono M, Oikawa T, Suzuki K. Genetic parameters for measures of energetic efficiency of bulls and their relationships with carcass traits of field progeny in Japanese Black cattle1. J Anim Sci 2009; 87:99-106. [DOI: 10.2527/jas.2007-0766] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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30
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Katsube T, Shimono T, Ashikaga R, Hosono M, Kitagaki H, Murakami T. Demonstration of cerebellar atrophy in neuroacanthocytosis of 2 siblings. AJNR Am J Neuroradiol 2008; 30:386-8. [PMID: 18945802 DOI: 10.3174/ajnr.a1282] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SUMMARY Neuroacanthocytosis is a rare hereditary disorder characterized by involuntary choreiform movements and erythrocytic acanthocytosis in the peripheral blood. Clinical manifestations of this disorder resemble those of Huntington disease (HD). Neuroimaging features of neuroacanthocytosis are atrophy and signal intensity change of the striata on MR imaging, as in HD. We report herein the cases of 2 siblings with neuroacanthocytosis showing cerebellar atrophy as well as atrophy and signal intensity changes of striata.
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Affiliation(s)
- T Katsube
- Department of Radiology, Kinki University School of Medicine, Osaka-Sayama, Japan.
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31
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Yamakawa H, Sakaguchi G, Mikami A, Nakajima Y, Sakaguchi I, Hosono M, Maeda M, Terawaki A, Yutsudo T, Itoh N, Ishiura S, Kato A. P1‐010: Native Aβ‐oligomer‐induced impairment of spatial working memory in mice. Alzheimers Dement 2008. [DOI: 10.1016/j.jalz.2008.05.595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Hidekuni Yamakawa
- Pain & Neurology, Discovery Research Laboratories, Shionogi & Co.Ltd.KokaJapan
- Department of Life SciencesGraduate School of Arts and Sciences, University of TokyoMeguro-kuJapan
| | - Gaku Sakaguchi
- Pain & Neurology, Discovery Research Laboratories, Shionogi & Co.Ltd.KokaJapan
| | - Azusa Mikami
- Pain & Neurology, Discovery Research Laboratories, Shionogi & Co.Ltd.KokaJapan
| | - Yoshihiro Nakajima
- Pain & Neurology, Discovery Research Laboratories, Shionogi & Co.Ltd.KokaJapan
| | - Isako Sakaguchi
- Pain & Neurology, Discovery Research Laboratories, Shionogi & Co.Ltd.KokaJapan
| | - Motoko Hosono
- Pain & Neurology, Discovery Research Laboratories, Shionogi & Co.Ltd.KokaJapan
| | - Masahiro Maeda
- Lead Discovery, Discovery Research Laboratories, Shionogi & Co., Ltd.OsakaJapan
| | - Ayako Terawaki
- Lead Discovery, Discovery Research Laboratories, Shionogi & Co., Ltd.OsakaJapan
| | - Takashi Yutsudo
- Lead Discovery, Discovery Research Laboratories, Shionogi & Co., Ltd.OsakaJapan
| | - Naohiro Itoh
- Pain & Neurology, Discovery Research Laboratories, Shionogi & Co.Ltd.KokaJapan
| | - Shoichi Ishiura
- Department of Life SciencesGraduate School of Arts and Sciences, University of TokyoMeguro-kuJapan
| | - Akira Kato
- Pain & Neurology, Discovery Research Laboratories, Shionogi & Co.Ltd.KokaJapan
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32
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Nishitomi K, Sakaguchi G, Horikoshi Y, Gray AJ, Maeda M, Hirata-Fukae C, Becker AG, Hosono M, Sakaguchi I, Minami SS, Nakajima Y, Li HF, Takeyama C, Kihara T, Ota A, Wong PC, Aisen PS, Kato A, Kinoshita N, Matsuoka Y. BACE1 inhibition reduces endogenous Abeta and alters APP processing in wild-type mice. J Neurochem 2006; 99:1555-63. [PMID: 17083447 DOI: 10.1111/j.1471-4159.2006.04178.x] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Accumulation of amyloid beta peptide (Abeta) in brain is a hallmark of Alzheimer's disease (AD). Inhibition of beta-site amyloid precursor protein (APP)-cleaving enzyme-1 (BACE1), the enzyme that initiates Abeta production, and other Abeta-lowering strategies are commonly tested in transgenic mice overexpressing mutant APP. However, sporadic AD cases, which represent the majority of AD patients, are free from the mutation and do not necessarily have overproduction of APP. In addition, the commonly used Swedish mutant APP alters APP cleavage. Therefore, testing Abeta-lowering strategies in transgenic mice may not be optimal. In this study, we investigated the impact of BACE1 inhibition in non-transgenic mice with physiologically relevant APP expression. Existing Abeta ELISAs are either relatively insensitive to mouse Abeta or not specific to full-length Abeta. A newly developed ELISA detected a significant reduction of full-length soluble Abeta 1-40 in mice with the BACE1 homozygous gene deletion or BACE1 inhibitor treatment, while the level of x-40 Abeta was moderately reduced due to detection of non-full-length Abeta and compensatory activation of alpha-secretase. These results confirmed the feasibility of Abeta reduction through BACE1 inhibition under physiological conditions. Studies using our new ELISA in non-transgenic mice provide more accurate evaluation of Abeta-reducing strategies than was previously feasible.
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Affiliation(s)
- Kouhei Nishitomi
- Pain & Neurology, Discovery Research Laboratories, Shionogi Co. Ltd, Shiga, Japan
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33
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Sasaki Y, Shibata T, Hirai H, Hosono M, Fukui T, Fujii H, Arimoto H, Motoki M, Bito Y, Takahashi Y, Suehiro S. [New proximal anastomotic system in coronary artery bypass grafting]. Kyobu Geka 2006; 59:538-42. [PMID: 16856527] [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: 05/10/2023]
Abstract
The Heartstring proximal anastomotic system is a device designed to facilitate the creation of a clampless hand-sewn proximal anastomosis. Thirty-four patients who underwent coronary artery revascularization had 40 proximal anastomoses using the Heartstring device. There were 26 men and 8 women, with the mean age of 70 +/- 8.9 years. Thirty-one patients underwent coronary artery bypass grafting through off-pump procedures and 3 patients on-pump beating procedures. In all patients, saphenous vein grafts were anastomosed to the aorta using the Heartstring device, the median number of distal anastomoses being 2.4 +/- 0.7. Either emergent or urgent surgery was required in 14 patients (41%). Diseased aorta was found in 11 patients (32%). One patient (2.9%) died postoperatively due to ischemic necrosis of the small intestine and the colon. There was no occurrence of postoperative stroke. Of 40 saphenous vein grafts anastomosed with the Heartstring system, 39 (97.5%) were patent. The occluded saphenous vein was not considered to be device related. Our clinical experience demonstrated that the Heartstring system allow us to create clampless and reproductive hand-sewn proximal anastomosis and to decrease the incidence of neurological complication.
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Affiliation(s)
- Y Sasaki
- Department of Cardiovascular Surgery, Osaka City University Medical School, Osaka, Japan
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34
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Nishitomi K, Sakaguchi G, Nakajima Y, Hosono M, Takeyama C, Kudo T, Takeda M, Kato A. P1–057: Presenilin–1 I213T knock–in mutation accelerates Alzheimer's phenotype in Tg2576 mice. Alzheimers Dement 2006. [DOI: 10.1016/j.jalz.2006.05.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Kouhei Nishitomi
- Pain & Neurology, Discovery Research LaboratoriesShionogi & Co., Ltd.KokaJapan
| | - Gaku Sakaguchi
- Pain & Neurology, Discovery Research LaboratoriesShionogi & Co., Ltd.KokaJapan
| | - Yoshihiro Nakajima
- Pain & Neurology, Discovery Research LaboratoriesShionogi & Co., Ltd.KokaJapan
| | - Motoko Hosono
- Pain & Neurology, Discovery Research LaboratoriesShionogi & Co., Ltd.KokaJapan
| | - Chie Takeyama
- Pain & Neurology, Discovery Research LaboratoriesShionogi & Co., Ltd.KokaJapan
| | - Takashi Kudo
- Department of PsychiatryOsaka University Graduate School of MedicineSuitaJapan
| | - Masatoshi Takeda
- Department of PsychiatryOsaka University Graduate School of MedicineSuitaJapan
| | - Akira Kato
- Pain & Neurology, Discovery Research LaboratoriesShionogi & Co., Ltd.KokaJapan
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35
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Kumano H, Shibata T, Sasaki Y, Hirai H, Hosono M, Fukui T, Fujii H, Arimoto H, Motoki M, Bito Y, Takahashi Y, Suehiro S. [Aortic root replacement in Marfan syndrome with hemophilia A]. Kyobu Geka 2006; 59:442-4. [PMID: 16780062] [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: 05/10/2023]
Abstract
A 34-year-old man with Marfan syndrome was admitted to our hospital for surgical treatment of aortic regurgitation due to annuloaortic ectasia. He had no history of bleeding complications. Preoperative investigation revealed a slight prolongation of an activated partial thromboplastin time, which went unnoticed. He underwent aortic root replacement with a composite valve graft. During the operation, he had excessive bleeding due to coagulopathy after the termination of cardiopulmonary bypass, and needed a large amount of blood transfusion to obtain hemostasis. Before his discharge from our hospital, he was diagnosed as mild hemophilia A because of the decline in his factor VII level. To our knowledge, there has been no published case of cardiac operations in Marfan syndrome with hemophilia A.
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Affiliation(s)
- H Kumano
- Department of Cardiovascular Surgery, Osaka City University Medical School, Osaka, Japan
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Ishii K, Hosono M, Wada Y, Kondo S, Takada Y, Tada T, Okamura T, Maeda M, Watanabe Y, Inoue Y. Assessment of Early Therapeutic Effects on VX2 Rabbit Carcinoma Using FDG-microPET. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.823] [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: 11/29/2022]
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Takeda T, Hosokawa M, Higuchi K, Hosono M, Akiguchi I, Katoh H. A novel murine model of aging, Senescence-Accelerated Mouse (SAM). Arch Gerontol Geriatr 2005; 19:185-92. [PMID: 15374284 DOI: 10.1016/0167-4943(94)90039-6] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Senescence-Accelerated Mouse (SAM) has been under development by our research team at Kyoto University since 1970, based on the AKR/J strain donated by the Jackson Laboratory in 1968. The SAM mouse has an accelerated senescence and age-associated pathologies such as senile amyloidosis, senile osteoporosis, degenerative joint disease, cataract, deficits in learning and memory, brain atrophy, hyperinflation of lungs, hearing impairment and so on. SAM research is advancing world-wide and attempts are being made to clarify fundamental mechanisms involved in primary aging processes, pathogenesis of age-associated pathologies and effective methods to modulate or ameliorate the advance of senescence and disease processes involved in age-associated pathologies.
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Affiliation(s)
- T Takeda
- Department of Senescence Biology, Chest Disease Research Institute, Kyoto University, Sakyo-ku, Kyoto 606, Japan
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38
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Nakada H, Ishida H, Hashimoto D, Mori T, Hosono M. Influence of different pneumoperitoneal pressures on tumor cell distribution in rats. Surg Endosc 2004; 19:563-8. [PMID: 15624050 DOI: 10.1007/s00464-004-9069-5] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2004] [Accepted: 10/01/2004] [Indexed: 11/26/2022]
Abstract
BACKGROUND The effect of different pneumoperitoneal pressures on tumor cell distribution was investigated. METHODS Donryu rats were allocated to receive carbon dioxide pneumoperitoneum at 5, 10, or 15 mmHg for 60 min or to serve as a control. During the procedure, each rat was inoculated with radiolabeled ascites hepatoma cells via the portal vein (experiment 1) or femoral vein (experiment 2). In both experiments, the rats were killed 30, 60, 90, or 120 min after tumor cell inoculation, and the liver and lungs were extirpated for radioactivity count (n = 5 or 6 for each time point in each group). RESULTS In experiment 1, the percentage of injected dose (% ID) for the liver was greater than for the other three groups 120 min after tumor cell inoculation. There were no significant differences in the %IDs of the lungs at any time point among the groups. In experiment 2, there were no significant differences in the %IDs of the liver and lungs at any time point among the groups. CONCLUSIONS These results suggest that an elevated insufflation pressure facilitates the location of intraportally injected tumor cells in the liver, and that pulmonary location of the tumor cells may not depend on insufflation pressures in this animal model.
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Affiliation(s)
- H Nakada
- Department of Surgery, Saitama Medical Center, Saitama Medical School, 1981 Kamoda Kawagoe, Saitama 350-8550, Japan
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Ishida H, Nakada H, Takeuchi I, Yokoyama M, Okita T, Hashimoto D, Hosono M, Mori T. Distribution of intrasplenically injected colon cancer cells following pneumoperitoneum in mice. Surg Endosc 2003; 17:1278-82. [PMID: 12739112 DOI: 10.1007/s00464-002-9182-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2002] [Accepted: 11/21/2002] [Indexed: 11/25/2022]
Abstract
BACKGROUND Few studies have examined tumor cell distribution following laparoscopic surgery for colorectal cancer. We examined the effect of carbon dioxide pneumoperitoneum on the distribution of intrasplenically injected colon cancer cells in mice. METHODS Mice were intrasplenically injected with 2 x 10(4) colon 26 cells labeled with 111In-oxine and were randomized to undergo pneumoperitoneum at 10 mmHg for 30 min or to receive no treatment other than anesthesia. Radioactivity of the liver, lungs, and spleen was measured 30, 60, 90, or 150 min following tumor inoculation. RESULTS The dynamic changes in the hepatic radioactivity were not similar between groups. However, the values were not significantly different at any time point. The radioactivity of lungs was extremely low in both groups throughout the experimental period. CONCLUSIONS Pneumoperitoneum does not appear to cause the accumulation of intraportally spreading tumor cells in the liver, but it may affect the dynamic changes of tumor cells. Also, tumor cell localization in the lungs is negligible in both pneumoperitoneum and control groups.
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Affiliation(s)
- H Ishida
- Department of Surgery, Saitama Medical Center and School, 1981, Kamoda, Tsujido-cho Kawagoe, Japan 350-8550.
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Hattori K, Suehiro S, Shibata T, Hirai H, Hosono M, Aoyama T, Ikuta T, Sakaguchi M, Bito Y. [Redo coronary artery bypass operation under beating heart via the left thoracotomy reusing patent grafts]. Kyobu Geka 2003; 56:694-8. [PMID: 12910953] [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: 03/04/2023]
Abstract
We report three cases of successful redo coronary artery bypass grafting (CABG) under beating heart via left thoracotomy with recycling of patent grafts previously implanted. Case 1 and 2: Anginal attack relapsed due to occlusion of the proximal portions of saphenous vein grafts (SVG) that had been sequentially anastomosed to the left coronary artery branches. In each case, the distal portion of the SVG was patent and functioned as coronary-coronary bypass. The left internal thoracic artery graft (ITAG) anastomosed to the left anterior descending coronary artery (LAD) was patent. Each patient underwent off-pump CABG through a left posterolateral thoracotomy. CABG was performed with the radial artery to the circumflex coronary artery (case 1) or the circumflex coronary artery and previous SVG (case 2). The proximal ends of radial artery grafts were anastomosed to the descending aorta. Case 3: Simultaneous reoperative CABG and the operation for the pseudoaneurysm that developed after the abdominal aortic graft replacement were performed. Bypass grafting between ITAG and LAD was performed with SVG via a left anterolateral thoracotomy because of severe anastomotic stricture of ITAG-LAD. The postoperative courses was uneventful for all patients.
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Affiliation(s)
- K Hattori
- Department of Cardiovascular Surgery, Osaka City University Postgraduate Medical School, Osaka, Japan
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Hirai H, Suehiro S, Shibata T, Hattori K, Murakami T, Hosono M, Fujii H, Aoyama T, Kinoshita H. [In situ graft replacement for the thoracoabdominal aortic aneurysm with abscess around the aorta; report of a case]. Kyobu Geka 2003; 56:581-4. [PMID: 12854468] [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: 03/03/2023]
Abstract
A 58-year-old woman who complained of epigastralgia, back pain and pyrexia was admitted for further examination. A computed tomography (CT) scan revealed an abnormal mass between the descending aorta and esophagus. Exploratory thoracotomy was performed and brown purulent fluid was drained from the mass. Postoperatively, the white blood cell count normalized and the patient become afebrile. Eleven days postoperatively, circa 500 ml of blood discharged from a chest drain tube. A CT scan demonstrated enlargement of the thoracoabdominal aorta, necessitating an emergency operation. A pseudoaneurysm was found in the thoracoabdominal aorta, with inflammation in the aortic wall. On opening the aneurysmal sac, the intima of the aorta was found to have a partial defect. In situ graft replacement of the thoracoabdominal aorta and reconstruction of the intercostal artery were performed. Finally, a pedicled omental flap was used to cover the artificial graft. Two years postoperatively, the patient is doing well with no recurrence of infection.
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Affiliation(s)
- H Hirai
- Department of Cardiovascular Surgery, Osaka City University School of Medicine, Osaka, Japan
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42
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Ishida H, Hashimoto D, Nakada H, Takeuchi I, Hoshino T, Murata N, Idezuki Y, Hosono M. Increased insufflation pressure enhances the development of liver metastasis in a mouse laparoscopy model: possible mechanisms. Surg Endosc 2002; 16:331-5. [PMID: 11967691 DOI: 10.1007/s00464-001-8318-0] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2001] [Accepted: 07/18/2001] [Indexed: 10/28/2022]
Abstract
BACKGROUND The effect of different insufflation pressures and durations of CO2 pneumoperitoneum on the growth of liver metastasis was investigated in a mouse model. The possible mechanisms involved in the pressure-related enhancement of liver metastasis were also examined. METHODS Mice inoculated intraportally with colon 26 cells underwent CO2 pneumoperitoneum at different pressures (5,10, or 15 mmHg) for 30 or 60 min, or received no treatment other than tumor cell inoculation (control). The subsequent growth of liver metastases was examined. Mice injected intraportally with 111In-oxine-labeled colon 26 cells underwent pneumoperitoneum at three different pressures or served as controls. The radioactivity of the liver was determined to evaluate tumor accumulation in the liver. Mice received pneumoperitoneum at three different pressures or received trocar placement alone. Changes in plasma interleukin-6 levels were determined. RESULTS The growth of liver metastases on day 14 was influenced by increased insufflation pressures (p < 0.05) rather than the prolonged duration of pneumoperitoneum without significant interaction. The 15-mmHg pneumoperitoneum group showed a higher (p < 0.05) accumulation of radioactivity in the liver compared with the 5-mmHg pneumoperitoneum group and controls. Pneumoperitoneum groups with 5 and 10 mmHg showed higher (p < 0.05) peak levels of IL-6 compared with controls. CONCLUSIONS An elevated insufflation pressure plays an important role in the enhancement of liver metastases, and this pressure-related adverse effect may be partly relevant to facilitating accumulation of tumor cells in the liver.
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Affiliation(s)
- H Ishida
- Department of Surgery, Saitama Medical Center, Saitama Medical School, 1981 Kamoda Kawagoe, Saitama 350-8550, Japan.
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Hosono M, Machida K, Matsui T, Honda N, Takahashi T, Dei S, Kashimada A, Shimizu Y, Osada H, Ohmichi M, Asano T. Non-invasive quantitative monitoring of cerebral blood flow in aneurysmal subarachnoid haemorrhage with 99mTc-ECD. Nucl Med Commun 2002; 23:5-11. [PMID: 11748432 DOI: 10.1097/00006231-200201000-00003] [Citation(s) in RCA: 7] [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: 11/27/2022]
Abstract
The purpose of this prospective study was to detect symptomatic cerebral vasospasm in aneurysmal subarachnoid haemorrhage (SAH) by a non-invasive mean cerebral blood flow (mCBF) quantification using 99mTc-ethyl cysteinate dimer. Measurement of mCBF without blood sampling and single photon emission tomography (SPECT) were performed at 1 and 7 days after surgery in 35 consecutive SAH patients, of whom 16 were examined at day 30 as well. A decrease in mCBF of more than 10% on day 7 versus day 1 was considered to indicate vasospasm. On visual interpretation of SPECT, a perfusion decrease which appeared newly on day 7 was considered to indicate vasospasm. In total, nine of 35 patients had cerebral vasospasm confirmed by computed tomography (CT) and/or angiography. The mCBF measurement showed a 77.8% (7/9) sensitivity, a 88.5% (23/26) specificity, a 70.0% (7/10) positive predictive value, and a 92.0% (23/25) negative predictive value. SPECT yielded a 33.3% (3/9) sensitivity, a 73.1% (19/26) specificity, a 30.0% (3/10) positive predictive value, and a 76.0% (19/25) negative predictive value. On SPECT, decreased perfusion was observed in most of the patients at clipping sites, which might represent post-operative transient abnormal perfusion and should not be read as vasospasm. In conclusion, this mCBF measurement is more accurate than visual interpretation of SPECT for detecting vasospasm.
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Affiliation(s)
- M Hosono
- Department of Radiology, Saitama Medical Center, Saitama Medical School, Kawagoe, Japan.
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44
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Gen H, Yamamoto S, Morimura K, Min W, Mitsuhashi M, Murai T, Mori S, Hosono M, Oohara T, Makino S, Wanibuchi H, Fukushima S. p53 and H-ras mutations and microsatellite instability in renal pelvic carcinomas of NON / Shi mice treated with N-butyl-N-(4-hydroxybutyl)-nitrosamine: different genetic alteration from urinary bladder carcinoma. Jpn J Cancer Res 2001; 92:1278-83. [PMID: 11749692 PMCID: PMC5926685 DOI: 10.1111/j.1349-7006.2001.tb02150.x] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
We previously reported p53 mutations to be frequent (greater than 70%), whereas both H-ras mutations and microsatellite instability (MSI) were infrequent (about 10%), in urinary bladder carcinomas (UBCs) and their metastatic foci in the N-butyl-N-(4-hydroxybutyl)nitrosamine (BBN)-induced mouse urothelial carcinogenesis model. In the present study, an analysis of p53 and H-ras mutations as well as MSI was performed on 12 renal pelvic carcinomas (RPCs) and 8 metastatic or invading foci produced by the same experimental procedure. Histologically, 10 of the RPCs were transitional cell carcinomas and the remaining 2 were squamous cell carcinomas. p53 mutations were infrequent and only found in one primary RPC (8%), its metastatic foci and an invading lesion in another animal (in a total 2 of 12; 17%). H-ras mutations were slightly more frequent (found in 3 of 12 animals; 25%), 4 of 5 involving codon 44, GTG to GCG, not a hot-spot reported for human cancers. In two cases, H-ras mutations were confined to lung metastasis and not detectable in their primary RPCs. MSI analysis was available for 6 pairs of primary RPCs and their metastatic foci, and 4 animals (67%) had MSI at one or more microsatellite loci. Overall, the distribution of genetic alterations differed from that in UBCs produced by the same experimental protocol. The results thus suggest that different genetic pathways may participate in carcinogenesis of the upper and lower urinary tract due to BBN.
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Affiliation(s)
- H Gen
- Department of Pathology, Osaka City University Medical School, Abeno-ku, Osaka 545-8585, Japan.
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Hosono M, Machida K, Matsui T, Honda N, Takahashi T, Kashimada A, Osada H, Asano T, Itoyama S. Oligodendroglioma with cystic component in infant. Comput Med Imaging Graph 2001; 25:361-5. [PMID: 11356330 DOI: 10.1016/s0895-6111(00)00079-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this report, we examine the case of a 6-year-old girl with a mixed oligodendroglioma demonstrating uncommon neuroradiological images. CT and MR showed an intratemporal mass with multilocular cystic formation and intratumoral massive calcification, suggestive either of astrocytoma, dysembryoplastic neuroepithelial tumor, or ganglioglioma as a presumptive differential diagnosis. The tumor was almost completely removed. Post-operative histological examination revealed a mixed oligodendroglioma with a small component of astrocytoma. The combination of radiotherapy and chemical treatment was supplemented.
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Affiliation(s)
- M Hosono
- Department of Radiology, Saitama Medical Center, Saitama Medical School1981 Kamoda, Kawagoe, 350-8550, Saitama, Japan.
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Honda N, Hosono M, Machida K. [Value of nuclear medicine in pulmonary hypertension]. Nihon Rinsho 2001; 59:1114-20. [PMID: 11411122] [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: 02/20/2023]
Abstract
Clinical applications of nuclear medicine in pulmonary hypertension (PH) include: 1) Differentiation of primary from chronic thromboembolic form of PH by mismatched ventilation/perfusion defects, 2) Quantification of right ventricular ejection fraction to estimate cardiac functional derangement, 3) Estimation of right ventricular hypertrophy or pressure overload by increased accumulation of radioactive myocardial perfusion agents, and 4) Estimation of myocardial sympathetic nervous function or fatty acid metabolism. Gravity dependent shift of pulmonary perfusion detected by perfusion scintigraphy has also been utilized for estimating severity of PH. Positron emission tomography (PET) has visualized distribution of pulmonary adrenergic receptors and angiotensin converting enzyme. PET, in addition to F-18 FDG lung tumor PET, should be watched for because it may visualize and quantify other bioactive substances and receptors in the lung.
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Affiliation(s)
- N Honda
- Department of Radiology, Saitama Medical Center, Saitama Medical School
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Takada Y, Kageyama K, Yamada R, Onoyama Y, Nakajima T, Hosono M, Miwa N. Correlation of DNA synthesis-inhibiting activity and the extent of transmembrane permeation into tumor cells by unsaturated or saturated fatty alcohols of graded chain-length upon hyperthermia. Oncol Rep 2001; 8:547-51. [PMID: 11295078 DOI: 10.3892/or.8.3.547] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The carcinostatic activity has been studied for fatty acids of diverse species but scarcely for fatty alcohols. Three unsaturated fatty alcohols at 35-50 microM inhibited DNA synthesis and the proliferation of tumor cells by a combination with hyperthermia to greater extents in the order: oleyl (C18:1)-> linoleyl (C18:2)-> alpha-linolenyl (C18:3) alcohol, which is an order inverse to that known for the corresponding fatty acids (4). In contrast, two saturated fatty alcohols, palmityl (C16:0)- and stearyl (C18:0) alcohols, did not inhibit at the same concentrations. At 100 microM, palmityl alcohol inhibited, whereas stearyl alcohol did not. The effective fatty alcohols appreciably permeated the cells. The inhibition of the unsaturated fatty alcohols on DNA synthesis and proliferation was nearly proportional to the amount of their intercellular accumulation at 37 degrees C or 42 degrees C; the most inhibitory, oleyl alcohol, was the most membrane-permeable, whilst inversely the least inhibitory, alpha-linolenyl alcohol, was the least permeable. A proportional correlation was not observed for saturated fatty alcohols; palmityl alcohol underwent an approximate 2-fold more abundant accumulation than other fatty alcohols, but was weakly inhibitory. Thus, oleyl alcohol may exert an antitumor action via appropriately efficient transmembrane permeation and a combination with hyperthermia.
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Affiliation(s)
- Y Takada
- Department of Radiology, Osaka City University Medical School, Asahi-machi, Abeno-ku, Osaka 545-8585, Japan
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Abstract
A metastatic synovial sarcoma of the left ventricle is described. A 26-year-old Japanese woman underwent resection of a synovial sarcoma of the right thigh 8 years prior to admission, which was followed by multiple surgical procedures for pulmonary metastasectomy. Echocardiography demonstrated obstruction of the outflow tract of the left ventricle caused by a metastatic tumor, which was surgically resected on the day of admission. The histologic characteristics of the cardiac tumor were identical to those of the pulmonary metastases. Additional cardiac metastasectomy was performed 9 months later. She complained of dyspnea on exertion 8 months after the second cardiac metastasectomy due to recurrence in the heart. Radiotherapy with LINAC (a total dose: 50 Gy) diminished the size of the tumor temporarily. The patient died 20 months after the initial cardiac metastasectomy.
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Affiliation(s)
- T Shibata
- Division of Cardiovascular Surgery, Osaka City University Medical School, Osaka, Japan
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Murakami T, Shibata T, Sasaki Y, Hosono M, Suehiro S, Kinoshita H. Aortic valve replacement in a patient with factor XII deficiency: case report. J Heart Valve Dis 2001; 10:377-9. [PMID: 11380103] [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: 02/20/2023]
Abstract
Congenital factor XII deficiency is a rare condition. We report a case of aortic valve replacement (AVR) in a 63-year-old man with factor XII deficiency. On admission, the patient's activated partial thromboplastin time (aPTT) was prolonged (271 s), and activated clotting time was 500 s. His factor XII level was <3%. The Sonoclot signature showed an abnormal pattern. AVR with a prosthetic valve (St. Jude Medical) was performed safely after the normalization of aPTT and the Sonoclot signature by frozen plasma transfusion. The perioperative management in patients with factor XII deficiency is discussed.
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Affiliation(s)
- T Murakami
- Division of Cardiovascular Surgery, Osaka City University Medical School, Abeno, Osaka, Japan
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Murai T, Mori S, Hosono M, Iwakura Y, Takashima A, Oohara T, Makino S, Takeda R, Fukushima S. Induction of hepatocellular carcinoma with high metastatic potential in WS/Shi rats: discovery of an inbred strain highly susceptible to the liver carcinogen N-nitrosomorpholine. Oncol Res 2001; 12:121-6. [PMID: 11216670 DOI: 10.3727/096504001108747594] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We investigated the susceptibility of three inbred strains of rats to the hepatocarcinogen, N-nitrosomorpholine (NNM), to establish a spontaneous metastatic model of hepatocellular carcinoma (HCC). WS/Shi. SD/gShi, and F344/DuCrj rats were given 0.02% NNM in drinking water for 8 weeks and thereafter left without any treatment. The experiment ceased at week 20, because mortality markedly increased after this time point in WS/Shi rats. Liver weight was highest in WS/Shi rats among the three strains examined. The incidence of HCC was 15/15 (100%) in WS/Shi rats, 1/16 (6%) in SD/gShi rats, and 13/16 (81%) in F344/DuCrj rats surviving after NNM treatment. Metastasis to the lung was observed in HCC-bearing rats at an incidence of 13/15 (87%) in WS/Shi, 1/1 in SD/gShi, and 6/13 (46%) in F344/DuCrj. Four-week administration of NNM resulted in a significantly higher BrdU-labeling index of hepatocytes in WS/Shi rats than in the other strains. These findings indicated that WS/Shi is the most sensitive strain to NNM and may be the most suitable strain for use as a spontaneous metastatic model of HCC among the strains of rats examined in the present study.
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Affiliation(s)
- T Murai
- First Department of Pathology Osaka City University Medical School, Osaka, Japan. takashi
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