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Kuraoka T, Goto S, Kanno M, Díaz-Tendero S, Reino-González J, Trinter F, Pier A, Sommerlad L, Melzer N, McGinnis OD, Kruse J, Wenzel T, Jahnke T, Xue H, Kishimoto N, Yoshikawa K, Tamura Y, Ota F, Hatada K, Ueda K, Martín F. Tracing Photoinduced Hydrogen Migration in Alcohol Dications from Time-Resolved Molecular-Frame Photoelectron Angular Distributions. J Phys Chem A 2024; 128:1241-1249. [PMID: 38324399 PMCID: PMC10895665 DOI: 10.1021/acs.jpca.3c07640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 02/09/2024]
Abstract
The recent implementation of attosecond and few-femtosecond X-ray pump/X-ray probe schemes in large-scale free-electron laser facilities has opened the way to visualize fast nuclear dynamics in molecules with unprecedented temporal and spatial resolution. Here, we present the results of theoretical calculations showing how polarization-averaged molecular-frame photoelectron angular distributions (PA-MFPADs) can be used to visualize the dynamics of hydrogen migration in methanol, ethanol, propanol, and isopropyl alcohol dications generated by X-ray irradiation of the corresponding neutral species. We show that changes in the PA-MFPADs with the pump-probe delay as a result of intramolecular photoelectron diffraction carry information on the dynamics of hydrogen migration in real space. Although visualization of this dynamics is more straightforward in the smaller systems, methanol and ethanol, one can still recognize the signature of that motion in propanol and isopropyl alcohol and assign a tentative path to it. A possible pathway for a corresponding experiment requires an angularly resolved detection of photoelectrons in coincidence with molecular fragment ions used to define a molecular frame of reference. Such studies have become, in principle, possible since the first XFELs with sufficiently high repetition rates have emerged. To further support our findings, we provide experimental evidence of H migration in ethanol-OD from ion-ion coincidence measurements performed with synchrotron radiation.
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Affiliation(s)
- T. Kuraoka
- Department
of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - S. Goto
- Department
of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - M. Kanno
- Department
of Chemistry, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - S. Díaz-Tendero
- Departamento
de Química, Universidad Autónoma
de Madrid, Madrid 28049, Spain
- Condensed
Matter Physics Center (IFIMAC), Universidad
Autónoma de Madrid, Madrid 28049, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - J. Reino-González
- Instituto
Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nano), Campus de Cantoblanco, Madrid 28049, Spain
| | - F. Trinter
- Molecular
Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, Berlin 14195, Germany
| | - A. Pier
- Institut
für Kernphysik, Goethe-Universität
Frankfurt, Max-von-Laue-Straβe 1, Frankfurt am
Main 60438, Germany
| | - L. Sommerlad
- Institut
für Kernphysik, Goethe-Universität
Frankfurt, Max-von-Laue-Straβe 1, Frankfurt am
Main 60438, Germany
| | - N. Melzer
- Institut
für Kernphysik, Goethe-Universität
Frankfurt, Max-von-Laue-Straβe 1, Frankfurt am
Main 60438, Germany
| | - O. D. McGinnis
- Institut
für Kernphysik, Goethe-Universität
Frankfurt, Max-von-Laue-Straβe 1, Frankfurt am
Main 60438, Germany
| | - J. Kruse
- Institut
für Kernphysik, Goethe-Universität
Frankfurt, Max-von-Laue-Straβe 1, Frankfurt am
Main 60438, Germany
| | - T. Wenzel
- Institut
für Kernphysik, Goethe-Universität
Frankfurt, Max-von-Laue-Straβe 1, Frankfurt am
Main 60438, Germany
| | - T. Jahnke
- Max-Planck-Institut
für Kernphysik, Saupfercheckweg 1, Heidelberg 69117, Germany
- European
XFEL, Holzkoppel
4, Schenefeld 22869, Germany
| | - H. Xue
- Department
of Chemistry, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - N. Kishimoto
- Department
of Chemistry, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - K. Yoshikawa
- Department
of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Y. Tamura
- Department
of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - F. Ota
- Department
of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - K. Hatada
- Department
of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - K. Ueda
- Department
of Chemistry, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - F. Martín
- Departamento
de Química, Universidad Autónoma
de Madrid, Madrid 28049, Spain
- Instituto
Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nano), Campus de Cantoblanco, Madrid 28049, Spain
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Kanno M, Miura K, Masaki Y, Tsujimura H, Iino M, Takizawa J, Maeda Y, Yamamoto K, Tamura S, Yoshida A, Yagi H, Yoshida I, Kitazume K, Masunari T, Choi I, Kakinoki Y, Suzuki R, Yoshino T, Nakamura S, Yoshida T. CONSOLIDATION THERAPY USING 90
Y-IBRITUMOMAB TIUXETAN AFTER BENDAMUSTINE AND RITUXIMAB FOR RELAPSED FOLLICULAR LYMPHOMA; A MULTICENTER, PHASE II STUDY (BRiZ2012). Hematol Oncol 2019. [DOI: 10.1002/hon.61_2631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. Kanno
- Oncology Center; Nara Medical University Hospital; Kashihara Japan
| | - K. Miura
- Division of Hematology and Rheumatology; Nihon University School of Medicine; Tokyo Japan
| | - Y. Masaki
- Department of Hematology and Immunology; Kanazawa Medical University; Ishikawa Japan
| | - H. Tsujimura
- Division of Medical Oncology; Chiba Cancer Center; Chiba Japan
| | - M. Iino
- Department of Medical Oncology; Yamanashi Prefectural Central Hospital; Kofu Japan
| | - J. Takizawa
- Department of Hematology; Endocrinology and Metabolism, Niigata University Faculty of Medicine; Niigata Japan
| | - Y. Maeda
- Department of Hematology and Oncology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - K. Yamamoto
- Department of Hematology; Okayama City Hospital; Okayama Japan
| | - S. Tamura
- Department of Hematology/Oncology; Kinan Hospital; Tanabe Japan
| | - A. Yoshida
- Department of Hematology; Toyama Prefectural Central Hospital; Toyama Japan
| | - H. Yagi
- Department of Hematology and Oncology; Nara Prefecture General Medical Center; Nara Japan
| | - I. Yoshida
- Department of Hematologic Oncology; National Hospital Organization, Shikoku Cancer Center; Matsuyama Japan
| | - K. Kitazume
- Department of Hematology; Showa General Hospital; Kodaira Japan
| | - T. Masunari
- Department of Infectious Diseases; Chugoku Central Hospital; Fukuyama Japan
| | - I. Choi
- Department of Hematology; National Hospital Organization, Kyushu Cancer Center; Fukuoka Japan
| | - Y. Kakinoki
- Department of Hematology; Asahikawa City Hospital; Ashikawa Japan
| | - R. Suzuki
- Department of Oncology/Hematology, Innovative Cancer Center; Shimane University Hospital; Izumo Japan
| | - T. Yoshino
- Department of Pathology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - S. Nakamura
- Department of Pathology and Biological Response; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - T. Yoshida
- Member; Society of Lymphoma Treatment in Japan (SoLT-J); Kanazawa Japan
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Kanno M, Miura K, Masaki Y, Tsujimura H, Iino M, Takizawa J, Maeda Y, Yamamoto K, Tamura S, Yoshida A, Yagi H, Yoshida I, Kitazume K, Masunari T, Choi I, Kakinoki Y, Yoshino T, Nakamura S, Yoshida T. Bendamustine and rituximab followed by 90Y-ibritumomab tiuxetan for relapsed follicular lymphoma: A preliminary analysis of a multicenter, prospective phase II study (BRiZ2012). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy286.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ommori R, Park K, Miyagawa F, Azukizawa H, Kanno M, Asada H. Epidermal growth factor receptor (EGFR) inhibitory monoclonal antibodies and EGFR tyrosine kinase inhibitors have distinct effects on the keratinocyte innate immune response. Br J Dermatol 2018; 178:796-797. [DOI: 10.1111/bjd.15445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R. Ommori
- Department of Dermatology; Nara Medical University; 840 Shijocho Kashihara Nara 634-8522 Japan
| | - K. Park
- Department of Dermatology; Yamato Takada Municipal Hospital; Nara Japan
| | - F. Miyagawa
- Department of Dermatology; Nara Medical University; 840 Shijocho Kashihara Nara 634-8522 Japan
| | - H. Azukizawa
- Department of Dermatology; Nara Medical University; 840 Shijocho Kashihara Nara 634-8522 Japan
| | - M. Kanno
- Oncology Center; Nara Medical University; 840 Shijocho Kashihara Nara 634-8522 Japan
| | - H. Asada
- Department of Dermatology; Nara Medical University; 840 Shijocho Kashihara Nara 634-8522 Japan
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Ohnishi S, Watari H, Kanno M, Oba Y, Takeuchi S, Miyaji T, Oyamada S, Nomura E, Kato H, Sugiyama T, Asaka M, Sakuragi N, Yamaguchi T, Uezono Y, Iwase S. Efficacy of rikkunshito, a Japanese herbal medicine, on nausea, vomiting and anorexia in patients with uterine cervical or corpus cancer treated with cisplatin and paclitaxel –A randomized phase II study. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw390.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kondo E, Yamamoto K, Masunari T, Takizawa J, Miura K, Masaki Y, Matsumura T, Hiramatsu Y, Murakam J, Tsujimura H, Tomita N, Maeda Y, Kanno M. Final results of a phase II trial of R-IDEA as salvage therapy in patients with relapsed/refractory diffuse large B-cell lymphoma. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw375.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Adachi N, Adamovitch V, Adjovi Y, Aida K, Akamatsu H, Akiyama S, Akli A, Ando A, Andrault T, Antonietti H, Anzai S, Arkoun G, Avenoso C, Ayrault D, Banasiewicz M, Banaśkiewicz M, Bernardini L, Bernard E, Berthet E, Blanchard M, Boreyko D, Boros K, Charron S, Cornette P, Czerkas K, Dameron M, Date I, De Pontbriand M, Demangeau F, Dobaczewski Ł, Dobrzyński L, Ducouret A, Dziedzic M, Ecalle A, Edon V, Endo K, Endo T, Endo Y, Etryk D, Fabiszewska M, Fang S, Fauchier D, Felici F, Fujiwara Y, Gardais C, Gaul W, Gurin L, Hakoda R, Hamamatsu I, Handa K, Haneda H, Hara T, Hashimoto M, Hashimoto T, Hashimoto K, Hata D, Hattori M, Hayano R, Hayashi R, Higasi H, Hiruta M, Honda A, Horikawa Y, Horiuchi H, Hozumi Y, Ide M, Ihara S, Ikoma T, Inohara Y, Itazu M, Ito A, Janvrin J, Jout I, Kanda H, Kanemori G, Kanno M, Kanomata N, Kato T, Kato S, Katsu J, Kawasaki Y, Kikuchi K, Kilian P, Kimura N, Kiya M, Klepuszewski M, Kluchnikov E, Kodama Y, Kokubun R, Konishi F, Konno A, Kontsevoy V, Koori A, Koutaka A, Kowol A, Koyama Y, Kozioł M, Kozue M, Kravtchenko O, Kruczała W, Kudła M, Kudo H, Kumagai R, Kurogome K, Kurosu A, Kuse M, Lacombe A, Lefaillet E, Magara M, Malinowska J, Malinowski M, Maroselli V, Masui Y, Matsukawa K, Matsuya K, Matusik B, Maulny M, Mazur P, Miyake C, Miyamoto Y, Miyata K, Miyata K, Miyazaki M, Molȩda M, Morioka T, Morita E, Muto K, Nadamoto H, Nadzikiewicz M, Nagashima K, Nakade M, Nakayama C, Nakazawa H, Nihei Y, Nikul R, Niwa S, Niwa O, Nogi M, Nomura K, Ogata D, Ohguchi H, Ohno J, Okabe M, Okada M, Okada Y, Omi N, Onodera H, Onodera K, Ooki S, Oonishi K, Oonuma H, Ooshima H, Oouchi H, Orsucci M, Paoli M, Penaud M, Perdrisot C, Petit M, Piskowski A, Płocharski A, Polis A, Polti L, Potsepnia T, Przybylski D, Pytel M, Quillet W, Remy A, Robert C, Sadowski M, Saito M, Sakuma D, Sano K, Sasaki Y, Sato N, Schneider T, Schneider C, Schwartzman K, Selivanov E, Sezaki M, Shiroishi K, Shustava I, Śniecińska A, Stalchenko E, Staroń A, Stromboni M, Studzińska W, Sugisaki H, Sukegawa T, Sumida M, Suzuki Y, Suzuki K, Suzuki R, Suzuki H, Suzuki K, Świderski W, Szudejko M, Szymaszek M, Tada J, Taguchi H, Takahashi K, Tanaka D, Tanaka G, Tanaka S, Tanino K, Tazbir K, Tcesnokova N, Tgawa N, Toda N, Tsuchiya H, Tsukamoto H, Tsushima T, Tsutsumi K, Umemura H, Uno M, Usui A, Utsumi H, Vaucelle M, Wada Y, Watanabe K, Watanabe S, Watase K, Witkowski M, Yamaki T, Yamamoto J, Yamamoto T, Yamashita M, Yanai M, Yasuda K, Yoshida Y, Yoshida A, Yoshimura K, Żmijewska M, Zuclarelli E. Measurement and comparison of individual external doses of high-school students living in Japan, France, Poland and Belarus-the 'D-shuttle' project. J Radiol Prot 2016; 36:49-66. [PMID: 26613195 DOI: 10.1088/0952-4746/36/1/49] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Twelve high schools in Japan (of which six are in Fukushima Prefecture), four in France, eight in Poland and two in Belarus cooperated in the measurement and comparison of individual external doses in 2014. In total 216 high-school students and teachers participated in the study. Each participant wore an electronic personal dosimeter 'D-shuttle' for two weeks, and kept a journal of his/her whereabouts and activities. The distributions of annual external doses estimated for each region overlap with each other, demonstrating that the personal external individual doses in locations where residence is currently allowed in Fukushima Prefecture and in Belarus are well within the range of estimated annual doses due to the terrestrial background radiation level of other regions/countries.
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Affiliation(s)
- N Adachi
- Adachi High School, 2-347 Kakunai, Nihonmatsu, Fukushima 964-0904, Japan
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Nagaya K, Motomura K, Kukk E, Takahashi Y, Yamazaki K, Ohmura S, Fukuzawa H, Wada S, Mondal S, Tachibana T, Ito Y, Koga R, Sakai T, Matsunami K, Nakamura K, Kanno M, Rudenko A, Nicolas C, Liu XJ, Miron C, Zhang Y, Jiang Y, Chen J, Anand M, Kim DE, Tono K, Yabashi M, Yao M, Kono H, Ueda K. Femtosecond charge and molecular dynamics of I-containing organic molecules induced by intense X-ray free-electron laser pulses. Faraday Discuss 2016; 194:537-562. [DOI: 10.1039/c6fd00085a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We studied the electronic and nuclear dynamics of I-containing organic molecules induced by intense hard X-ray pulses at the XFEL facility SACLA in Japan. The interaction with the intense XFEL pulse causes absorption of multiple X-ray photons by the iodine atom, which results in the creation of many electronic vacancies (positive charges) via the sequential electronic relaxation in the iodine, followed by intramolecular charge redistribution. In a previous study we investigated the subsequent fragmentation by Coulomb explosion of the simplest I-substituted hydrocarbon, iodomethane (CH3I). We carried out three-dimensional momentum correlation measurements of the atomic ions created via Coulomb explosion of the molecule and found that a classical Coulomb explosion model including charge evolution (CCE-CE model), which accounts for the concerted dynamics of nuclear motion and charge creation/charge redistribution, reproduces well the observed momentum correlation maps of fragment ions emitted after XFEL irradiation. Then we extended the study to 5-iodouracil (C4H3IN2O2, 5-IU), which is a more complex molecule of biological relevance, and confirmed that, in both CH3I and 5-IU, the charge build-up takes about 10 fs, while the charge is redistributed among atoms within only a few fs. We also adopted a self-consistent charge density-functional based tight-binding (SCC-DFTB) method to treat the fragmentations of highly charged 5-IU ions created by XFEL pulses. Our SCC-DFTB modeling reproduces well the experimental and CCE-CE results. We have also investigated the influence of the nuclear dynamics on the charge redistribution (charge transfer) using nonadiabatic quantum-mechanical molecular dynamics (NAQMD) simulation. The time scale of the charge transfer from the iodine atomic site to the uracil ring induced by nuclear motion turned out to be only ∼5 fs, indicating that, besides the molecular Auger decay in which molecular orbitals delocalized over the iodine site and the uracil ring are involved, the nuclear dynamics also play a role for ultrafast charge redistribution. The present study illustrates that the CCE-CE model as well as the SCC-DFTB method can be used for reconstructing the positions of atoms in motion, in combination with the momentum correlation measurement of the atomic ions created via XFEL-induced Coulomb explosion of molecules.
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Ota I, Masui T, Mikami S, Uemura H, Kanno M, Kitahara T. 2816 Snail-induced EMT promotes the properties of cancer stem cells in head and neck cancer cells. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31559-3] [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: 11/16/2022]
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Kondo E, Yamamoto K, Masunari T, Miura K, Takizawa J, Masaki Y, Matsumura T, Hiramatsu Y, Murakami J, Tsujimura H, Tomita N, Maeda Y, Kanno M. Interim Analysis of an Ongoing Phase Ii Trial Assessing Safety and Efficacy of R-Idea As Salvage Therapy in Patients with Relapsed/Refractory Dlbcl: an Intergroup Study of the Society of Lymphoma Treatment in Japan (Solt-J) and the West Japan Hematology/Oncology Group (Westjhog). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu339.12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shofty B, Bokstein F, Ram Z, Ben-Sira L, Freedman S, Kesler A, Constantini S, Shofty B, Mauda-Havakuk M, Ben-Bashat D, Dvir R, Pratt LT, Weizman L, Joskowicz L, Tal M, Ravid L, Ben-Sira L, Constantini S, Dodgshun A, Maixner W, Sullivan M, Hansford J, Ma J, Wang B, Toledano H, Muhsinoglu O, Luckman J, Michowiz S, Goldenberg-Cohen N, Schroeder K, Rosenfeld A, Grant G, McLendon R, Cummings T, Becher O, Gururangan S, Aguilera D, Mazewski C, Janss A, Castellino RC, Schniederjan M, Hayes L, Brahma B, MacDonald T, Osugi Y, Kiyotani C, Sakamoto H, Yanagisawa T, Kanno M, Kamimura S, Kosaka Y, Hirado J, Takimoto T, Nakazawa A, Hara J, Hwang E, Mun A, Kilburn L, Chi S, Knipstein J, Oren M, Dvir R, Hardy K, Rood B, Packer R, Kandels D, Schmidt R, Geh M, Breitmoser-Greiner S, Gnekow AK, Bergthold G, Bandopadhayay P, Rich B, Chan J, Santagata S, Hoshida Y, Ramkissoon S, Ramkissoon L, Golub T, Tabak B, Ferrer-Luna R, Weng PY, Stiles C, Grill J, Kieran MW, Ligon KL, Beroukhim R, Fisher MJ, Levin MH, Armstrong GT, Broad JH, Zimmerman R, Bilaniuk LT, Feygin T, Liu GT, Gan HW, Phipps K, Spoudeas HA, Kohorst M, Warad D, Keating G, Childs S, Giannini C, Wetjen N, Rao; AN, Nakamura H, Makino K, Hide T, Kuroda JI, Shinojima N, Yano S, Kuratsu JI, Rush S, Madden J, Hemenway M, Foreman N, Sie M, den Dunnen WFA, Lourens HJ, Meeuwsen-de Boer TGJ, Scherpen FJG, Kampen KR, Hoving EW, de Bont ESJM, Gnekow AK, Kandels D, Walker DA, Perilongo G, Grill J, Stokland T, Sehested AM, van Schouten AYN, de Paoli A, de Salvo GL, Pache-Leschhorn S, Geh M, Schmidt R, Gnekow AK, Gass D, Rupani K, Tsankova N, Stark E, Anderson R, Feldstein N, Garvin J, Deel M, McLendon R, Becher O, Karajannis M, Wisoff J, Muh C, Schroeder K, Gururangan S, del Bufalo F, Carai A, Macchiaiolo M, Messina R, Cacchione A, Palmiero M, Cambiaso P, Mastronuzzi A, Anderson M, Leary S, Sun Y, Buhrlage S, Pilarz C, Alberta J, Stiles C, Gray N, Mason G, Packer R, Hwang E, Biassoni V, Schiavello E, Bergamaschi L, Chiaravalli S, Spreafico F, Massimino M, Krishnatry R, Kroupnik T, Zhukova N, Mistry M, Zhang C, Bartels U, Huang A, Adamski J, Dirks P, Laperriere N, Silber J, Hawkins C, Bouffet E, Tabori U, Riccardi R, Rizzo D, Chiaretti A, Piccardi M, Dickmann A, Lazzareschi I, Ruggiero A, Guglielmi G, Salerni A, Manni L, Colosimo C, Falsini B, Rosenfeld A, Etzl M, Miller J, Carpenteri D, Kaplan A, Sieow N, Hoe R, Tan AM, Chan MY, Soh SY, Orphanidou-Vlachou E, MacPherson L, English M, Auer D, Jaspan T, Arvanitis T, Grundy R, Peet A, Bandopadhayay P, Bergthold G, Sauer N, Green A, Malkin H, Dabscheck G, Marcus K, Ullrich N, Goumnerova L, Chi S, Beroukhim R, Kieran M, Manley P, Donson A, Kleinschmidt-DeMasters B, Aisner D, Bemis L, Birks D, Mulcahy-Levy J, Smith A, Handler M, Rush S, Foreman N, Davidson A, Figaji A, Pillay K, Kilborn T, Padayachy L, Hendricks M, van Eyssen A, Parkes J, Gass D, Dewire M, Chow L, Rose SR, Lawson S, Stevenson C, Jones B, Pai A, Sutton M, Pruitt D, Fouladi M, Hummel T, Cruz O, de Torres C, Sunol M, Morales A, Santiago C, Alamar M, Rebollo M, Mora J, Sauer N, Dodgshun A, Malkin H, Bergthold G, Manley P, Chi S, Ramkissoon S, MacGregor D, Beroukhim R, Kieran M, Sullivan M, Ligon K, Bandopadhayay P, Hansford J, Messina R, De Benedictis A, Carai A, Mastronuzzi A, Rebessi E, Palma P, Procaccini E, Marras CE, Aguilera D, Castellino RC, Janss A, Schniederjan M, McNall R, Kim S, MacDOnald T, Mazewski C, Zhukova N, Pole J, Mistry M, Fried I, Krishnatry R, Stucklin AG, Bartels U, Huang A, Laperriere N, Dirks P, Zelcer S, Sylva M, Johnston D, Scheinemann K, An J, Hawkins C, Nathan P, Greenberg M, Bouffet E, Malkin D, Tabori U, Kiehna E, Da Silva S, Margol A, Robison N, Finlay J, McComb JG, Krieger M, Wong K, Bluml S, Dhall G, Ayyanar K, Moriarty T, Moeller K, Farber D. LOW GRADE GLIOMAS. Neuro Oncol 2014; 16:i60-i70. [PMCID: PMC4046289 DOI: 10.1093/neuonc/nou073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023] Open
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Kawaguchi R, Furukawa N, Kimura M, Kanno M. Long-Term Survival Following of Neoadjuvant Intraarterial Chemotherapy for Stage IIIB Cervical Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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13
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Ohta T, Terada T, Nagakawa T, Kayahara M, Nishimura G, Tsukioka Y, Taniguchi K, Miyazaki I, Numata M, Yamamoto M, Iseki S, Kanno M. Expression of pancreatic trypsinogen in human extrapancreatic gastrointestinal carcinomas. Oncol Rep 2012; 1:759-64. [PMID: 21607437 DOI: 10.3892/or.1.4.759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Pancreatic trypsinogen expression in 149 surgically resected extrapancreatic gastrointestinal neoplasms was evaluated immunohistochemically. Immunohistochemistry was performed using a monoclonal antibody against human pancreatic trypsinogen. Pancreatic trypsinogen expression was detected in 28 of 55 gastric carcinomas (50.9%), 22 of 44 colorectal cancers (50%), 12 of 20 gallbladder cancers (60%), nine of 10 extrahepatic bile duct cancers (90%), and none of 20 hepatocellular carcinomas. The intensity of immunoreactivity in the tumor area varied from specimen to specimen, and from area to area within the same specimen. In most cases, however, immunoreactivity was more pronounced at the infiltrative margin of the tumor. Additionally, the highly differentiated carcinoma cells tended to display a focal, fine granular immunoreactive pattern, usually present in the supranuclear cytoplasm, while the poorly differentiated carcinoma cells displayed a fine granular pattern, usually present over the entire cytoplasm. These findings suggest that some extrapancreatic gastrointestinal neoplasms express pancreatic trypsinogen immunoreactive peptides, raising the possibility that secreted pancreatic trypsinogen plays a role in carcinoma invasion and metastasis, as has been shown for other classes of proteases.
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Affiliation(s)
- T Ohta
- KANAZAWA UNIV,SCH MED,DEPT PATHOL 2,KANAZAWA,ISHIKAWA 920,JAPAN. KANAZAWA UNIV,SCH MED,DEPT ANAT 1,KANAZAWA,ISHIKAWA 920,JAPAN. KEIJU GEN HOSP,DEPT GASTROENTEROL,NANAO,ISHIKAWA 926,JAPAN
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Ohta T, Terada T, Nagakawa T, Tajima H, Kanno M, Sodani H, Miyazaki I. Differential expression of pancreatic trypsinogen and cathepsin-B in human scirrhous-type and intestinal-type gastric carcinomas. Oncol Rep 2012; 1:203-8. [PMID: 21607337 DOI: 10.3892/or.1.1.203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Pancreatic trypsinogen and cathepsin B expression was evaluated in 44 surgically resected gastric carcinomas by immunohistochemical analysis. Carcinomatous tissues were subjected to immunohistochemical staining with a monoclonal antibody against human pancreatic trypsinogen and a polyclonal antibody against human cathepsin B. As a result, twenty-two of 24 scirrhous-type gastric carcinomas (92%) expressed pancreatic trypsinogen intensely and diffusely in a fine granular pattern over the entire cytoplasm of carcinoma cells. In contrast, only 5 of 20 intestinal-type gastric carcinomas (25%) reacted with the trypsinogen specific antibody and then only focally, in a fine granular pattern in the supra-nuclear cytoplasm of carcinoma cells. Cathepsin B expression was detected in 20 of 24 scirrhous-type gastric carcinomas (84%) in a fine, diffuse, granular pattern in the cytoplasm of carcinoma cells, while only 2 of 20 intestinal-type gastric carcinomas (10%) had detectable cathepsin B. From these results, we find that scirrhous-type gastric carcinomas express abundant quantities of pancreatic trypsinogen and cathepsin B immunoreactive peptides.
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Affiliation(s)
- T Ohta
- KANAZAWA UNIV,SCH MED,DEPT PATHOL 2,KANAZAWA,ISHIKAWA 920,JAPAN. KEIJU GEN HOSP,DEPT GASTROENTEROL,NANAO,ISHIKAWA 926,JAPAN
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Kozai Y, Kawamata R, Sakurai T, Kanno M, Kashima I. Influence of prednisolone-induced osteoporosis on bone mass and bone quality of the mandible in rats. Dentomaxillofac Radiol 2009; 38:34-41. [DOI: 10.1259/dmfr/28859075] [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: 11/05/2022] Open
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16
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Kusatsugu M, Kanno M, Honma T, Komatsu T. Spatially selected synthesis of LaF3 and Er3+-doped CaF2 crystals in oxyfluoride glasses by laser-induced crystallization. J SOLID STATE CHEM 2008. [DOI: 10.1016/j.jssc.2008.02.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Midorikawa H, Satou K, Ishikawa K, Kanno M. [A prosthetic ring annuloplasty with edge-to-edge repair for a treatment of severe tricuspid regurgitation]. Kyobu Geka 2008; 61:331-334. [PMID: 18411699] [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: 05/26/2023]
Abstract
A 59-year-old woman admitted to our hospital with shortness of breath and edema of the lower extremities was diagnosed with right ventricular failure stemming from severe tricuspid valve regurgitation (TR). She had undergone mitral valve replacement (MVR) with a mechanical valve at the age of 42. The approach to the heart was established via a right thoracotomy at the 4th intercostals space. A beating heart cardiopulmonary bypass procedure was performed in which tricuspid valve repair was performed with the edge-to-edge repair and MC3 annuloplasty system. The operative course was uneventful. This technique may be feasible and clinically effective in the treatment of severe TR.
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Affiliation(s)
- Hirofumi Midorikawa
- Department of Cardiovascular Surgery, Southern Tohoku General Hospital, Koriyama, Japan
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Ogawa A, Fukuta Y, Nakajima T, Kanno M, Obara A, Nakamura K, Mizuki H, Takeda Y, Satoh M. Erratum to “Treatment results of oral verrucous carcinoma and its biological behavior” [Oral Oncology 40 (2004) 793–797]. Oral Oncol 2005. [DOI: 10.1016/j.oraloncology.2004.09.004] [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: 11/25/2022]
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Takahashi S, Kanno M, Sakurada T, Ono M, Naganuma W. [Left ventricular reconstruction on the beating heart with retrograde coronary perfusion for repair of a left ventricular aneurysm associated with aortic regurgitation: report of a case]. Kyobu Geka 2005; 58:235-8. [PMID: 15776744] [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: 05/02/2023]
Abstract
A 67-year-old male was undergoing hemodialysis for renal failure. He had carotid stenosis, multiple liver cysts with impaired liver function, and mild aortic regurgitation in addition to a left ventricular aneurysm with reduced left ventricular function. We used intraaortic balloon pumping with a view to maintaining cerebral and hepatic blood flow during extracorporeal circulation. However, this procedure risked increased regurgitation at the aortic valve. Therefore, after aortic cross-clamping, we performed the left ventricular reconstruction while cardiac pulsation was maintained by retrograde coronary perfusion using normothermic oxygenated blood. Coronary artery bypass grafting followed after the cross-clamp was released. The patient's postoperative progress was smooth and he was discharged on 14th postoperative day.
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Affiliation(s)
- S Takahashi
- Division of Cardiac Surgery, Heart Circulatory Center, Southern Tohoku General Hospital and Southern Tohoku Research Institute for Neuroscience, Koriyama, Japan
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Abstract
Inhibitory antibody to von Willebrand factor (vWF)-cleaving protease (ADAMTS13) was detected in a patient with intravascular lymphomatosis. The increased serum level of the antibody paralleled an increase in the expression of uncleaved vWF, which might cause microvascular thrombosis and platelet consumption. Malignant cell proliferations with superimposed thrombosis within the lumina throughout the entire vasculature account for diffuse neurodeficits observed in the patient.
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Affiliation(s)
- M Kawahara
- Department of Neurology, Nara Medical University, Shijyo-cho 840, Kashihara city, Nara 634-8521, Japan.
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Abstract
A series of fluorinated polyimides cured at different temperatures was prepared, and plasma protein adsorption and platelet adhesion onto the polyimide films were evaluated in vitro using scanning electron microscopy, a micro-bicinchoninic acid protein assay, and a gold-colloid-labeled immunoassay. In particular, we focused on competitive plasma protein adsorption onto polyimide film because elucidation of the competitive adsorption mechanism is needed for a good understanding of in vivo biocompatibility of polyimide. Interestingly, the trend of IgG adsorption onto the polyimide surface measured in human plasma was completely contrary to that observed with IgG dissolved in PBS, and the adsorption increased with an increase in the curing temperature. We propose that the human plasma F(c) region in IgG might selectively adsorb onto polyimide film cured at high temperatures because of competitive plasma protein adsorption to the surface.
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Affiliation(s)
- H Kawakami
- Department of Applied Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397 Japan.
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Abstract
Distinguishing between re-infection and relapse of trichomonas infections is often a difficult task in the clinical setting. The chronicity of trichomonas infections and the ongoing sexual activity are two confounding factors. We present a patient with recurrent resistant vaginal trichomoniasis shortly following a sexual contact with an untreated partner after a complete response to treatment with tinidazole for nine months. We hypothesise that re-infection occurred from the asymptomatic partner who was an untreated chronic carrier of resistant trichomonas in the urogenital tract.
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Affiliation(s)
- M Kanno
- Division of Infectious Diseases, Department of Medicine, Detroit Medical Center, Harper Hospital, Detroit, Michigan, USA
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Michiwa Y, Kamata T, Hayashi H, Hayashi Y, Minatoya G, Onishi I, Takeda T, Kanno M, Ueda Y. Complete response of Sister Mary Joseph Nodule from gastric adenocarcinoma treated with combination chemotherapy of low-dose S-1 and cisplatin. J Exp Clin Cancer Res 2002; 21:609-11. [PMID: 12636109] [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: 03/01/2023]
Abstract
A case of an unresected, advanced gastric cancer with Sister Mary Joseph nodule was presented. It was treated with new combination chemotherapy of low-dose S-1 and cisplatin producing complete response of periumbilical metastasis. Few treatments are efficacious for umbilical invasion of peritoneal dissemination. A complete response for Sister Mary Joseph nodule from gastric adenocarcinoma has not been ever reported.
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Affiliation(s)
- Y Michiwa
- Dept. of Gastrointestinal Surgery, Keiju Medical Center, Nanao, Ishikawa, Japan.
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Tatebayashi T, Kanno M, Tezuka M, Nitta S. [Recurrent pulmonary embolism with prolonged right heart failure and hypoxia after cerebral bleeding; report of a case]. Kyobu Geka 2002; 55:581-4. [PMID: 12136588] [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: 02/25/2023]
Abstract
A 56-year-old woman with right hemiplegia for recent cerebral bleeding suddenly complained of dyspnea and chest pain with hypoxia during rehabilitation. Eight days after this first attack, she suffered prolonged right heart failure and hypoxia due to recurrent pulmonary embolism. Arterial blood gas analysis of room air showed 34.5 mmHg of PaO2 and 29.2 mmHg of PaCO2. Echocardiography showed enlargement of the right atrium and ventricle with pulmonary hypertension. Enhanced chest computed tomography revealed pulmonary emboli from the main pulmonary artery to the periphery. Despite intensive treatment, heart failure and hypoxia did not improve. We conducted pulmonary embolectomy under cardiopulmonary bypass requiring percutaneous cardiopulmonary bypass support for 2 days due to right heart failure. She is currently doing well in the 9 months following surgery.
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Affiliation(s)
- T Tatebayashi
- Division of Thoracic and Cardiovascular Surgery, Southern Tohoku General Hospital, Kooriyama, Japan
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Abstract
Contact between blood and biomaterial triggers a complex series of events including protein adsorption, leukocyte adhesion and activation, and complement activation. In this article, a series of fluorinated polyimides cured at a different temperatures was prepared, and the biocompatibility of the membranes was evaluated using in vitro protein adsorption, neutrophil adhesion, and complement activation experiments under static conditions. We found that protein adsorption, neutrophil adhesion, and complement activation for the polyimides significantly depends on the curing temperature and decreases with an increase in the temperature and that the polyimide has a good biocompatibility compared with poly(styrene) and polydimethylsiloxane. We concluded that the rearrangement of molecules such as CF(3), sulfone, and ketone at the outermost surface occurs because of curing, which induces an increase in the hydrophobicity and that the cured polyimide suppresses protein adsorption, neutrophil adhesion, and complement activation because of its high hydrophobicity and low surface free energy.
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Affiliation(s)
- M Kanno
- Department of Industrial Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397 Japan
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Niwa M, Kawakami H, Kanno M, Nagaoka S, Kanamori T, Shinbo T, Kubota S. Gas transfer and blood compatibility of asymmetric polyimide hollow fiber. J Biomater Sci Polym Ed 2002; 12:533-42. [PMID: 11469783 DOI: 10.1163/156856201300194261] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We have fabricated an asymmetric polyimide hollow fiber for use as a membrane oxygenator. A dry/wet phase inversion process has been applied to a spinning process to prepare the hollow fiber. The fiber structure consisted of a complete defect-free skin layer and a porous substructure characterized by the presence of an open-cell structure and macrovoids. The outer diameter was 480 microm with a wall thickness of 50 microm. Transfer rates of O2 and CO2 in the asymmetric polyimide fiber were 2.3 x 10(-5) and 1.1 x 10(-4) (cm3 (STP)/(cm2 s cmHg)), respectively, which were four times higher than those measured in the polydimethylsiloxane (PDMS) fiber of the presently-available membrane oxygenator. The (QO2/QN2) selectivity of the polyimide fiber was 4.9, indicating that the surface skin layer is essentially defect-free. The blood compatibility of the polyimide hollow fiber has been evaluated in vitro and in vivo. The polyimide had an excellent blood compatibility when compared with PDMS.
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Affiliation(s)
- M Niwa
- Department of Applied Chemistry, Tokyo Metropolitan University, Hachioji, Japan
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Abstract
UNLABELLED Requirements for inhaled anesthetics decrease during pregnancy. There are no published data, however, regarding propofol requirements in these patients. Because propofol is often used for induction of general anesthesia when surgery is necessary in early pregnancy, we investigated whether early pregnancy reduces the requirement of propofol for loss of consciousness using a computer-assisted target-controlled infusion (TCI). Propofol was administered using TCI to provide stable concentrations and to allow equilibration between blood and effect-site (central compartment) concentrations. Randomly selected target concentrations of propofol (1.5-4.5 microg/mL) were administered to both pregnant women (n = 36) who were scheduled for pregnancy termination and nonpregnant women (n = 36) who were scheduled for elective orthopedic or otorhinolaryngologic surgery. The median gestation of the pregnant women was 8 wk (range, 6-12 wk). Venous blood samples for analysis of the serum propofol concentration were taken at 3 min and 8 min after equilibration of the propofol concentration. After a 10-min equilibration period of the predetermined propofol blood concentration, a verbal command to open their eyes was given to the patients twice, accompanied by rubbing of their shoulders. Serum propofol concentrations at which 50% of the patients did not respond to verbal commands (C(50) for loss of consciousness) were determined by logistic regression. There was no significant difference in C(50) +/- SE of propofol for loss of consciousness between the Nonpregnant (2.1 +/- 0.2 microg/mL) and Pregnant (2.0 +/- 0.2 microg/mL) groups. These results indicate that early pregnancy does not decrease the concentration of propofol required for loss of consciousness. IMPLICATIONS The C(50) of propofol for loss of consciousness in early pregnancy did not differ from that in nonpregnant women, indicating that there is no need to decrease the propofol concentration for loss of consciousness when inducing general anesthesia for termination of pregnancy.
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Affiliation(s)
- H Higuchi
- Department of Anesthesia, Self Defense Force Central Hospital, Tokyo, Japan.
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Horikawa M, Yasumuro M, Kanno M, Hanada K, Hashiguchi M, Ogata H. Stereoselective pharmacokinetics and pharmacodynamics of disopyramide and its metabolite in rabbits. J Pharm Pharmacol 2001; 53:1621-8. [PMID: 11804392 DOI: 10.1211/0022357011778223] [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] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The extent to which interactions between enantiomers of disopyramide and between disopyramide and its metabolite, mono-N-dealkylated disopyramide (MND), contribute to stereoselectivity of the anti-arrhythmic effect has been investigated in rabbits by measuring the prolongation of the QUc interval. The plasma unbound fraction of disopyramide enantiomers was constant at a concentration range of 1.44-28.9 microM. An intravenous infusion study of the disopyramide enantiomer or racemate suggested that the S-enantiomer had a pharmacological effect, determined by linear regression analysis, approximately 3.3-times more potent than that of the R-enantiomer. Furthermore, the effect caused by racemic disopyramide was the sum of that elicited by both enantiomers individually. No significant difference was observed between the slope of linear regression analysis of intravenous infusion and that of intravenous bolus injection. Single intravenous bolus injection of MND did not affect the QUc intervals. In conclusion, the S-enantiomer of disopyramide was approximately 3.3-times more potent pharmacologically than the R-enantiomer. The relationship between plasma concentration of the disopyramide enantiomers and pharmacological effect was the sum of each enantiomer individually.
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Affiliation(s)
- M Horikawa
- Department of Biopharmaceutics, Meiji Pharmaceutical University, Kiyose, Tokyo, Japan
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Keino M, Kanno M, Hirasawa K, Watari T, Mikawa M, Saito K, Kato K, Katayose M, Yoshida H. Isolation of echovirus type 13 from patients of aseptic meningitis. Jpn J Infect Dis 2001; 54:249-50. [PMID: 11862012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- M Keino
- Department of Microbiology, Fukushima Prefectural Institute of Public Health, Fukushima 960-8560, Japan.
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Ishii K, Tomidokoro A, Nagahara M, Tamaki Y, Kanno M, Fukaya Y, Araie M. Effects of topical latanoprost on optic nerve head circulation in rabbits, monkeys, and humans. Invest Ophthalmol Vis Sci 2001; 42:2957-63. [PMID: 11687542] [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: 02/22/2023] Open
Abstract
PURPOSE To evaluate the effect of topically administrated latanoprost on optic nerve head (ONH) circulation in Dutch rabbits, cynomolgus monkeys, and normal humans. METHODS The ONH tissue blood velocity (NB(ONH)) was determined using the laser speckle method. Latanoprost (0.005%, 30 microl) was instilled into one eye, and vehicle into the other eye as a control. In rabbits, NB(ONH) was measured for 90 minutes after a single instillation and before and after a 7-day once-daily instillation regimen. In monkeys, NB(ONH) was measured before and after 1, 4, and 7 days of a once-daily instillation regimen. The effect of intravenous indomethacin on the latanoprost-induced NB(ONH) change was also studied in rabbits and monkeys. In humans, the time-course changes in NB(ONH) were measured for 4.5 hours before and after a 7-day once-daily instillation regimen. Intraocular pressure (IOP) and systemic parameters were simultaneously studied in each experiment. All measurements were performed by investigators masked to the experimental condition. RESULTS Latanoprost significantly increased NB(ONH) 10% to 19% in treated eyes after a single instillation (P = 0.035) or 7-day instillation regimen (P = 0.035) in rabbits, after a 4-day (P = 0.035) or 7-day (P = 0.035) instillation regimen in monkeys, and after a 7-day (P = 0.013) instillation regimen in humans, whereas there were no significant changes in the vehicle-treated eyes in any of the experiments (P > 0.5). Pretreatment with indomethacin (5 mg/kg) abolished the NB(ONH) increase but not the IOP reduction in latanoprost-treated eyes in rabbits and monkeys. IOP remained unchanged in both eyes in rabbits (P > 0.4), whereas it significantly decreased only in latanoprost-treated eyes in monkeys (P < 0.05) and humans (P < 0.05). CONCLUSIONS Topical latanoprost significantly increased ONH blood velocity only in treated eyes in rabbits, monkeys, and humans. This effect was independent of the IOP-reducing effect of latanoprost and probably was associated with local penetration of the drug and the production of endogenous prostaglandins.
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Affiliation(s)
- K Ishii
- Eye Clinic, Omiya Red Cross Hospital, Japan
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Kanno M, Nakamura S, Asakura H. [Disseminated intravascular coagulation (DIC)]. Nihon Rinsho 2001; 59 Suppl 7:477-83. [PMID: 11808155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- M Kanno
- Department of General Medicine and Clinical Investigation, Nara Medical University
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Higuchi H, Adachi Y, Wada H, Kanno M, Satoh T. Comparison of plasma alpha glutathione S-transferase concentrations during and after low-flow sevoflurane or isoflurane anaesthesia. Acta Anaesthesiol Scand 2001; 45:1226-9. [PMID: 11736674 DOI: 10.1034/j.1399-6576.2001.451009.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [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: 11/23/2022]
Abstract
BACKGROUND We evaluated the effect of low-flow sevoflurane anaesthesia, in which compound A is generated, and isoflurane anaesthesia, in which compound A is not generated (n=13 in each group), on hepatocellular integrity using alpha glutathione S-transferase (GST). Alpha GST is a more sensitive and specific marker of hepatocellular damage than is aminotransferase activity and correlates better with hepatic histology. METHODS Sevoflurane or isoflurane were delivered without nitrous oxide with a fresh gas flow of 1 l/min. Concentrations of compound A in the circuit were measured hourly, and plasma alpha GST concentrations were measured perioperatively. RESULTS Mean duration of anaesthesia was 338+/-92 min in the sevoflurane group and 320+/-63 min in the isoflurane group. Mean compound A concentration in the sevoflurane group was 28.6+/-9.0 ppm. There was no significant difference in alpha GST concentrations between the sevoflurane and isoflurane groups during or after anaesthesia. CONCLUSION These results indicate that low-flow sevoflurane and isoflurane anaesthesia have the same effect on hepatic function, as assessed by plasma alpha GST concentrations.
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Affiliation(s)
- H Higuchi
- Department of Anaesthesia, Self Defense Force Central Hospital, Setagaya, Tokyo, Japan.
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Kanno M, Chuma T, Mano Y. Monitoring an electroencephalogram for the safe application of therapeutic repetitive transcranial magnetic stimulation. J Neurol Neurosurg Psychiatry 2001; 71:559-60. [PMID: 11561052 PMCID: PMC1763535 DOI: 10.1136/jnnp.71.4.559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kamata T, Hayashi Y, Minatoya G, Michiwa Y, Onishi I, Takeda T, Koyasaki N, Kanno M. [A pilot study of low-dose TS-1 and cisplatin combination chemotherapy for advanced gastric cancer]. Gan To Kagaku Ryoho 2001; 28:1419-22. [PMID: 11681250] [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: 02/22/2023]
Abstract
TS-1, a novel oral formation of 5-fluorouracil, consists of tegafur (5-FU), CDHP and Oxo. Low-dose cisplatin (CDDP) and TS-1 was evaluated in 12 patients with advanced or recurrent gastric cancer. CDDP was given biweekly at a dose of 15 mg/m2 infused for 30 minutes, and 80 mg/body of TS-1 was orally administered as many times as possible. The response rate was 41.7%. Median survival time was 13.3 months. In one case, an adverse reaction of grade 3 leucopenia was observed. Thus, thought it is necessary to watch for leucopenia, this chemotherapy could well be effective for patients with advanced or recurrent gastric cancer.
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Affiliation(s)
- T Kamata
- Dept. of Surgery and Gastroenterology, Keiju Medical Center
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36
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Kanno M, Tatebayashi T, Tezuka M, Ono M, Wada Y. [Intravenous leiomyomatosis with cardiac extension in an elderly woman: report of a case]. Kyobu Geka 2001; 54:791-3. [PMID: 11517553] [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: 02/21/2023]
Abstract
Intravenous leiomyomatosis is a histologically benign smooth-muscle tumor arising from either a uterine myoma or the wall of a uterine vessel with extension into veins. We describe a 71-year-old woman with a prior history of subtotal hysterectomy for uterine myoma years earlier who presented with palpitation. Echocardiographic examination revealed an intracardiac mass protruding into the right ventricle during diastole. The caval tumor could be traced to the right renal vein by magnetic resonance image. She was operated on for intracardiac and intracaval leiomyomatosis. The intracaval tumor proved to be not totally resectable. Presence of smooth muscle was confirmed by smooth muscle actin and desmin positive cells in the tumor. Tumor cells also proved to possess estrogen receptors. The patient has been closely followed-up with antiestrogen therapy.
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Affiliation(s)
- M Kanno
- Division of Cardiovascular Surgery, Southern Tohoku Research Institute for Neuroscience, Koriyama, Japan
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Abstract
BACKGROUND Solitary fibrous tumor is a spindle cell neoplasm that most commonly arises in the pleura and very rarely involves the orbit. CASE A 38-year-old woman presented with slowly progressive proptosis of 3 months duration and optic nerve head edema in her right eye. Magnetic resonance imaging revealed a well-circumscribed, round mass lesion, which showed isointensity to the gray matter in a T1-weighted image, and variegated intensity in a T2-weighted image and contact with the optic nerve in her right orbit. The tumor was successfully removed by anterior orbitotomy. OBSERVATIONS The tumor showed a "patternless pattern" of tumor cell arrangement, alternating hypercellular and hypocellular areas, a hemangiopericytoma-like pattern, and thickened strands of collagen. Immunohistochemically, the tumor cells were positive for CD34 and vimentin, and all were negative for other markers of epithelial, neural, muscular, histiocytic, and vascular endothelial cell elements. The tumor was diagnosed as a solitary fibrous tumor, and the patient was doing well with no evidence of recurrence 15 months after surgery. CONCLUSIONS This case was the 19th reported case of solitary fibrous tumor in the orbital region. CD34 is a highly sensitive marker for solitary fibrous tumor.
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Affiliation(s)
- H Takamura
- Department of Ophthalmology, Yamagata, Japan
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Kanno M, Nakamura S, Danno D, Uotani C, Kotani T, Yamanaka S, Terasaki Y, Matano S, Okumura H. [Gross spreading multiple extramedullary plasmacytomas to the skin in the terminal stage of multiple myeloma]. Rinsho Ketsueki 2001; 42:554-8. [PMID: 11524846] [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: 02/21/2023]
Abstract
A 71-year-old woman with an 8-year history of IgG-kappa type multiple myeloma was admitted because of severe lumbago and bone destruction. Her serum IgG level was elevated to 5,565 mg/dl at admission. Despite treatment with doxorubicin, vincristine, dexamethasone, melphalan and interferon-alpha, the response was transient. Nine months later, multiple skin nodules appeared on her chest, abdominal wall and right thigh accompanied by elevation of the serum IgG level. Response to combination chemotherapy with cyclophosphamide, ranimustine, vincristine and prednisolone was also transient. The skin tumors on the bilateral thighs, especially on the left side, acquired chemotherapy resistance and gradually enlarged. Although the serum IgG level was maintained by chemotherapy within the range 1, 790-2,676 mg/dl, the skin tumors on the left thigh had spread very rapidly and appeared "rock-like". The enlarged tumors caused necrosis with erosions and oozing hemorrhage. A skin biopsy from the tumors on the left thigh showed plasmacytoma in which infiltration of large anaplastic plasma cells was observed. The patient died of sepsis 8 months after the skin tumors initially developed. This is a very rare case of multiple myeloma in which multiple large plasmacytomas of the skin developed and grew aggressively at the terminal stage after a long-term indolent course.
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Affiliation(s)
- M Kanno
- Department of General Medicine and Clinical Investigation, Nara Medical University
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Abstract
UNLABELLED A new CO(2) absorbent, Amsorb (A), which does not contain monovalent bases, is ideal because it does not degrade volatile anesthetics to either Compound A (from sevoflurane) or carbon monoxide (from desflurane, enflurane, or isoflurane). The CO(2) absorption capacity of A, however, has not been investigated under clinical conditions. In this study, we compared the longevity (time to exhaustion) and CO(2) absorption capacity (the volume of CO(2) absorbed before CO(2) rebreathing occurs) of A under low-flow anesthesia (1 L/min) with those of two soda lime absorbents-Medisorb (M) and Sodasorb (S)-by using a 750-mL ADU canister and a 1350-mL Aestiva 3000 canister. In the study with the ADU canister, the longevity of A was 213 +/- 71 min, significantly less than those of M (445 +/- 125; P < 0.01) and S (503 +/- 89; P < 0.001). The CO(2) absorption capacity (L/100 g absorbent) of A was 5.5 +/- 1.2, significantly less than those of M (10.7 +/- 1.7) and S (12.1 +/- 1.8; P < 0.001). In the study with the Aestiva 3000 canister, the longevity of A was 218 +/- 61 min, significantly less than those of M (538 +/- 136) and S (528 +/- 103; P < 0.001). The CO(2) absorption capacity (L/100 g absorbent) of A was 7.6 +/- 1.6, significantly less than those of M (14.4 +/- 1.8) and S (14.8 +/- 2.3; P < 0.001). These results indicate that the CO(2) absorption capacity of A is half that of M or S and that the difference in the CO(2) absorption capacity between A and M or S is almost constant, regardless of the canister design. IMPLICATIONS The CO(2) absorption capacity of Amsorb is half that of Medisorb and Sodasorb under clinical low-flow (1 L/min) anesthesia with either a 750-mL Ohmeda ADU compact or a 1350-mL Ohmeda Aestiva 3000 canister.
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Affiliation(s)
- H Higuchi
- Department of Anesthesia, Self Defense Force Central Hospital, Tokyo, Japan.
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Fujimaki K, Morinobu S, Takahashi J, Yamawaki S, Kato N, Kanno M, Okuyama N, Kawakatsu S, Otani K, Kusumi I, Koyama T. Nucleotide sequence analysis of the binding site on the inositol 1,4,5-trisphosphate type-1 receptor in bipolar disorder -- a negative study. J Affect Disord 2001; 65:139-43. [PMID: 11356237 DOI: 10.1016/s0165-0327(00)00273-1] [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: 10/18/2022]
Abstract
Pharmacological studies of bipolar disorder suggest that dysfunction of calcium mobilization via phosphatidylinositol-mediated transduction may be involved in its pathogenesis. The present study tests the hypothesis that dysfunction of calcium mobilization in bipolar disorder is due to the mutation of the nucleotide sequence in the FKBP12 binding site on the inositol 1,4,5-trisphosphate type-1 receptor (IP(3)R1). Nucleotide sequence analysis of the FKBP12 binding site on IP(3)R1 was performed using reverse transcription-polymerase chain reaction and DNA sequencing. The nucleotide sequence in this region was preserved in all subjects. This finding suggests that IP(3)R1 dysfunction through the FKBP12 binding site is not involved in the pathogenesis of bipolar disorder.
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Affiliation(s)
- K Fujimaki
- Department of Psychiatry, Shiga University of Medical Science, Otsu, Japan
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Yamasaki M, Sasho T, Moriya H, Kanno M, Harada M, Kamada N, Shimizu E, Nakayama T, Taniguchi M. Extrathymic development of V alpha 11 T cells in placenta during pregnancy and their possible physiological role. J Immunol 2001; 166:7244-9. [PMID: 11390473 DOI: 10.4049/jimmunol.166.12.7244] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The molecular and cellular mechanisms of the feto-maternal immune responses in the placenta in connection with natural abortion remain unclear. In this report we provide evidence that V(alpha11) T cells developed in the placenta may be responsible for the induction of natural abortion. The majority of V(alpha11) TCRs detected during pregnancy showed a consensus motif in the CDR3 region, similar to that of anti-GM3 TCR clones, and were of maternal origin. V(alpha11) TCRs were found in the middle to late stages of gestation due to de novo generation in the placenta, not to migration from the maternal side, as evidenced by the significant increases in the out-of-frame V(alpha11) TCR mRNA and the copy number of circular DNA generated by V(alpha11) gene rearrangements. Furthermore, administration of anti-V(alpha11) Ab to pregnant mice resulted in a significant decrease in the incidence of fetal demise, suggesting that V(alpha11) T cells detected in the placenta develop extrathymically and are involved in natural abortion.
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MESH Headings
- Animals
- Antibodies, Monoclonal/administration & dosage
- Base Sequence
- Cell Movement/immunology
- Female
- Injections, Intravenous
- Maternal-Fetal Exchange/immunology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Placenta/cytology
- Placenta/immunology
- Pregnancy
- Pregnancy, Animal/immunology
- Receptors, Antigen, T-Cell, alpha-beta/biosynthesis
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Receptors, Antigen, T-Cell, alpha-beta/physiology
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- T-Lymphocyte Subsets/physiology
- Thymus Gland/cytology
- Thymus Gland/immunology
- Transcription, Genetic/immunology
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Affiliation(s)
- M Yamasaki
- Core Research for Evolutional Science and Technology, Department of Molecular Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
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Akasaka T, van Lohuizen M, van der Lugt N, Mizutani-Koseki Y, Kanno M, Taniguchi M, Vidal M, Alkema M, Berns A, Koseki H. Mice doubly deficient for the Polycomb Group genes Mel18 and Bmi1 reveal synergy and requirement for maintenance but not initiation of Hox gene expression. Development 2001; 128:1587-97. [PMID: 11290297 DOI: 10.1242/dev.128.9.1587] [Citation(s) in RCA: 130] [Impact Index Per Article: 5.7] [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: 11/20/2022]
Abstract
Polycomb group genes were identified as a conserved group of genes whose products are required in multimeric complexes to maintain spatially restricted expression of Hox cluster genes. Unlike in Drosophila, in mammals Polycomb group (PcG) genes are represented as highly related gene pairs, indicative of duplication during metazoan evolution. Mel18 and Bmi1 are mammalian homologs of Drosophila Posterior sex combs. Mice deficient for Mel18 or Bmi1 exhibit similar posterior transformations of the axial skeleton and display severe immune deficiency, suggesting that their gene products act on overlapping pathways/target genes. However unique phenotypes upon loss of either Mel18 or Bmi1 are also observed. We show using embryos doubly deficient for Mel18 and Bmi1 that Mel18 and Bmi1 act in synergy and in a dose-dependent and cell type-specific manner to repress Hox cluster genes and mediate cell survival of embryos during development. In addition, we demonstrate that Mel18 and Bmi1, although essential for maintenance of the appropriate expression domains of Hox cluster genes, are not required for the initial establishment of Hox gene expression. Furthermore, we show an unexpected requirement for Mel18 and Bmi1 gene products to maintain stable expression of Hox cluster genes in regions caudal to the prospective anterior expression boundaries during subsequent development.
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Affiliation(s)
- T Akasaka
- Department of Molecular Embryology, Graduate School of Medicine, Chiba University, Chuo-ku, Chiba 260-8670, Japan
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Higuchi H, Adachi Y, Wada H, Kanno M, Satoh T. The effects of low-flow sevoflurane and isoflurane anesthesia on renal function in patients with stable moderate renal insufficiency. Anesth Analg 2001; 92:650-5. [PMID: 11226095 DOI: 10.1097/00000539-200103000-00019] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
UNLABELLED Sevoflurane degrades to Compound A, which is nephrotoxic in rats. Therefore, the renal effects of Compound A is an area of intense debate. We investigated the effects of low-flow sevoflurane and isoflurane anesthesia on renal function in patients with stable renal insufficiency. Seventeen patients with a serum creatinine level of more than 1.5 mg/dL were anesthetized with sevoflurane or isoflurane at a total flow of 1 L/min. Serum creatinine and blood urea nitrogen were measured before anesthesia and again 1, 2, 3, 5, 7, and 14 days after anesthesia. The 24-h creatinine clearance was measured before anesthesia and 7 days after anesthesia. There were no significant differences in the blood urea nitrogen levels, serum creatinine concentrations, or creatinine clearance before and after anesthesia within each group. These results suggest that sevoflurane and isoflurane have similar effects on renal function in patients with moderately impaired renal function. Further study of the effects of low-flow sevoflurane anesthesia on impaired renal function with a larger sample size than ours is required to resolve the issue of sevoflurane safety in patients with renal insufficiency. IMPLICATIONS The serum creatinine and blood urea nitrogen data indicate that, for exposures of <130 ppm/h in Compound A inspired area under the curve, renal effects of low-flow sevoflurane are similar to those of isoflurane in patients with stable renal insufficiency.
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Affiliation(s)
- H Higuchi
- Department of Anesthesia, Self Defense Force Central Hospital, Tokyo, Japan.
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Tamura M, Kanno M, Kai T. Destabilization of neutrophil NADPH oxidase by ATP and other trinucleotides and its prevention by Mg(2+). Biochim Biophys Acta 2001; 1510:270-7. [PMID: 11342164 DOI: 10.1016/s0005-2736(00)00358-8] [Citation(s) in RCA: 9] [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: 11/28/2022]
Abstract
Neutrophil NADPH oxidase (O(2)(-) generating enzyme) activated in a cell-free system was deactivated by dilution. When ATP was included in dilution the deactivation was further accelerated. The deactivation by dilution was biphasic, and the half-life of the enzyme was significantly shortened by ATP in each phase. ADP and AMP had little effect on the enzyme longevity while GTP and CTP had a similar effect to ATP. Staurosporine, a wide-range inhibitor of protein kinases, had no effect on ATP-induced deactivation, suggesting that the effect was not due to a protein phosphorylation. Mg(2+) addition largely prevented the deactivation by ATP. Chemical crosslinking of the activated oxidase prevented the deactivation by dilution and ATP, suggesting that the deactivation is caused by dissociation of the oxidase complex. Estimation of actin filament (F-actin) showed that the F-actin level was markedly reduced by addition of ATP. The ATP effect on the deactivation was not prominent in a semi-recombinant system which does not contain cytosol. These results suggest that ATP-induced deactivation is largely due to the chelation of Mg(2+) and are consistent with the concept that Mg(2+) stabilizes the oxidase complex by stabilizing F-actin.
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Affiliation(s)
- M Tamura
- Department of Applied Chemistry, Faculty of Engineering, Ehime University, Matsuyama, Ehime 790-8577, Japan.
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45
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Tanaka T, Morita E, Mihara S, Kanno M, Yamamoto S. Identification of leukemia inhibitory factor as a potent mast cell growth-enhancing factor produced by mouse keratinocyte cell line, KCMH-1. Arch Dermatol Res 2001; 293:18-25. [PMID: 11289577 DOI: 10.1007/s004030000191] [Citation(s) in RCA: 9] [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] [Indexed: 10/27/2022]
Abstract
Inoculation of KCMH-1 cells, a keratinocyte-derived cell line established from a chemically induced skin tumor, into the skin of mice results in accumulation of mast cells around the resulting tumors. The conditioned medium of KCMH-1 cells enhances the growth of mast cells in vitro when they are cultured in the presence of NIH/3T3 fibroblasts, suggesting an important role for keratinocytes in mast cell hyperplasia in the skin. The aim of this study was to identify this mast cell growth-enhancing factor (MCGEF) by screening a KCMH-1 cDNA library. We first established a polyclonal antibody raised against the partially purified factor obtained from KCMH-1-conditioned medium which neutralized the MCGEF activity in KCMH-1-conditioned medium. Expression cloning of 1 x 10(6) cDNAs from the KCMH-1 cDNA library led to 16 cDNAs. One of these cloned cDNAs was found to be leukemia inhibitory factor (LIF). Both LIF produced by COS cells and the recombinant protein obtained commercially showed MCGEF activity when added to mast cell/fibroblast cocultures. MCGEF activity in KCMH-1-conditioned medium was completely neutralized by an anti-LIF monoclonal antibody. These results suggest that MCGEF produced by KCMH-1 cells is identical to LIF.
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Affiliation(s)
- T Tanaka
- Department of Dermatology, Hiroshima University Faculty of Medicine, Japan.
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Tomioka H, Hattori Y, Fukao M, Watanabe H, Akaishi Y, Sato A, Kim TQ, Sakuma I, Kitabatake A, Kanno M. Role of endothelial Ni(2+)-sensitive Ca(2+) entry pathway in regulation of EDHF in porcine coronary artery. Am J Physiol Heart Circ Physiol 2001; 280:H730-7. [PMID: 11158972 DOI: 10.1152/ajpheart.2001.280.2.h730] [Citation(s) in RCA: 9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Elevation of intracellular Ca(2+) concentration ([Ca(2+)](i)) in endothelial cells is proposed to be required for generation of vascular actions of endothelium-derived hyperpolarizing factor (EDHF). This study was designed to determine the endothelial Ca(2+) source that is important in development of EDHF-mediated vascular actions. In porcine coronary artery precontracted with U-46619, bradykinin (BK) and cyclopiazonic acid (CPA) caused endothelium-dependent relaxations in the presence of N(G)-nitro-L-arginine (L-NNA). The L-NNA-resistant relaxant responses were inhibited by high K(+), indicating an involvement of EDHF. In the presence of Ni(2+), which inhibits Ca(2+) influx through nonselective cation channels, the BK-induced EDHF relaxant response was greatly diminished and the CPA-induced response was abolished. BK and CPA elicited membrane hyperpolarization of smooth muscle cells of porcine coronary artery. Ni(2+) suppressed the hyperpolarizing responses in a manner analogous to removal of extracellular Ca(2+). EDHF-mediated relaxations and hyperpolarizations evoked by BK and CPA in porcine coronary artery showed a temporal correlation with the increases in [Ca(2+)](i) in porcine aortic endothelial cells. The extracellular Ca(2+)-dependent rises in [Ca(2+)](i) in endothelial cells stimulated with BK and CPA were completely blocked by Ni(2+). These results suggest that Ca(2+) influx into endothelial cells through nonselective cation channels plays a crucial role in the regulation of EDHF.
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Affiliation(s)
- H Tomioka
- Deartments of Pharmacology and Cardiovascular Medicine, Hokkaido University School of Medicine, Sapporo 060-8638, Japan
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Watanabe H, Tran QK, Takeuchi K, Fukao M, Liu MY, Kanno M, Hayashi T, Iguchi A, Seto M, Ohashi K. Myosin light-chain kinase regulates endothelial calcium entry and endothelium-dependent vasodilation. FASEB J 2001; 15:282-4. [PMID: 11156937 DOI: 10.1096/fj.00-0587fje] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [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: 11/11/2022]
Abstract
Activation of smooth muscle myosin light-chain kinase (MLCK) causes contraction. Here we have proven that MLCK controls Ca2+ entry (CE) in endothelial cells (ECs): MLCK antisense oligonucleotides strongly prevented bradykinin (BK)- and thapsigargin (TG)-induced endothelial Ca2+ response, while MLCK sense did not. We also show that the relevant mechanism is not phosphorylation of myosin light-chain (MLC): MLC phosphorylation by BK required CE, but MLC phosphorylation caused by the phosphatase inhibitor calyculin A did not trigger Ca2+ response. Most important, we provide for the first time strong evidence that, in contrast to its role in smooth muscle cells, activation of MLCK in ECs stimulates the production of important endothelium-derived vascular relaxing factors: MLCK antisense and MLCK inhibitors abolished BK- and TG-induced nitric oxide production, and MLCK inhibitors substantially inhibited acetylcholine-stimulated hyperpolarization of smooth muscle cell membrane in rat mesenteric artery. These results indicate that MLCK controls endothelial CE, but not through MLC phosphorylation, and unveils a hitherto unknown physiological function of the enzyme: vasodilation through its action in endothelial cells. The study discovers a counter-balancing role of MLCK in the regulation of vascular tone.
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Affiliation(s)
- H Watanabe
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, 3600 Handa-cho, Hamamatsu 431-3192, Japan.
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Abstract
1. A 52-year-old female with refractory depression had not responded to various treatments including electroconvulsive therapy and augmentation therapy with lithium or triiodothyronine. 2. Addition of bromocriptine 2.5-5 mg/day to imipramine improved her depressive symptoms. However, when the dose was increased to 15 mg/day to treat residual depressive symptoms, her clinical status deteriorated and returned to the original level. The dose reduction to 5mg/day again improved her depressive symptoms. 3. This report confirms the augmentation effect of bromocriptine for refractory depression. It also suggests that there is dose-dependency in this effect.
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Affiliation(s)
- T Wada
- Department of Neuropsychiatry, Yamagata University School of Medicine, Japan
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49
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Kanno M, Chandrasekar PH, Bentley G, Vander Heide RS, Alangaden GJ. Disseminated cytomegalovirus disease in hosts without acquired immunodeficiency syndrome and without an organ transplant. Clin Infect Dis 2001; 32:313-6. [PMID: 11170926 DOI: 10.1086/318449] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2000] [Revised: 06/05/2000] [Indexed: 12/23/2022] Open
Abstract
We describe 7 histologically proven cases of cytomegalovirus disease in patients without human immunodeficiency virus and without organ transplants, all of whom had associated comorbid conditions. Therapy with ganciclovir generally resulted in a favorable outcome.
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Affiliation(s)
- M Kanno
- Division of Infectious Diseases, Wayne State University School of Medicine, Detroit, MI, USA
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50
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Abstract
BACKGROUND Dehydrofluorination of sevoflurane by carbon dioxide absorbents in anesthesia machines produces compound A, which is nephrotoxic in rats. Several clinical studies indicate that prolonged low-flow sevoflurane anesthesia is associated with an increased urinary excretion of biochemical markers, such as protein. Probenecid, a competitive inhibitor of organic anion transport, diminishes compound A nephrotoxicity in rats. The purpose of the present study was to examine the effects of low- and high-flow sevoflurane anesthesia on urinary excretion of biochemical markers in humans and to examine the effects of probenecid on urinary excretion of these markers. METHODS Elective surgical patients (n = 64) were assigned to four groups (n = 16 each): low-flow sevoflurane plus probenecid (LSP), low-flow sevoflurane (LS), high-flow sevoflurane plus probenecid (HSP), and high-flow sevoflurane (HS). Probenecid (2.0 g) was administered orally 2 h before the induction of anesthesia in both the LSP and HSP groups. Nothing was administered orally 2 h before the induction of anesthesia in either the LS or HS groups. All patients underwent prolonged low-flow (1 l/min) or high-flow (6 l/min) sevoflurane anesthesia. Urinary excretion of protein, albumin, beta(2)-microglobulin, glucose, and N-acetyl-beta-d-glucosaminidase was measured for up to 7 days postoperatively. RESULTS Sevoflurane doses were similar in all four groups. There were no differences in blood urea nitrogen, creatinine, or creatinine clearance among the four groups after anesthesia. Average values for urinary excretion of protein, beta(2)-microglobulin, and N-acetyl-beta-d-glucosaminidase in the LS group were significantly higher than those in the other groups (LSP, HSP, HS; P < 0.05). There was no significant difference between the LS and LSP groups in average values for urinary excretion of albumin and glucose, although there were significant differences between the LS and both high-flow sevoflurane groups (HSP, HS). CONCLUSIONS Low-flow sevoflurane, which produces a sevenfold higher compound A exposure than high-flow sevoflurane, resulted in significant increases of several biochemical markers in half of the patients. Probenecid appears to provide protection against these renal effects.
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Affiliation(s)
- H Higuchi
- Department of Anesthesia, Self Defense Force Central Hospital, Tokyo, Japan.
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