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Kamezato M, Tsuji D, Daimon T, Taku K, Hatori M, Ikeda M, Hayashi H, Inoue K, Eto T, Itoh K. A Retrospective Analysis of Neutropenia in Patients Receiving Concomitant Administration of Docetaxel and Clarithromycin. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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52
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Kobayashi T, Itoh K, Ido T, Kamiya K, Itoh SI, Miura Y, Nagashima Y, Fujisawa A, Inagaki S, Ida K, Hoshino K. Spatiotemporal structures of edge limit-cycle oscillation before L-to-H transition in the JFT-2M tokamak. PHYSICAL REVIEW LETTERS 2013; 111:035002. [PMID: 23909334 DOI: 10.1103/physrevlett.111.035002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Indexed: 06/02/2023]
Abstract
In this Letter, we report analyses of spatiotemporal dynamics of turbulence and structure in the limit-cycle oscillation (LCO) that precedes an L-to-H transition. Zonal flows are not observed during LCO, and the oscillation is the periodic generations or decays of barrier with edge-localized mean flow. Oscillatory Reynolds stress is found to be too small to accelerate the LCO flow, by considering the dielectric constant in magnetized toroidal plasmas. Propagation of changes of the density gradient and turbulence amplitude into the core is also observed.
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Ishihara Y, Itoh K, Mitsuda Y, Shimada T, Kubota T, Kato C, Song SY, Kobayashi Y, Mori-Yasumoto K, Sekita S, Kirino Y, Yamazaki T, Shimamoto N. Involvement of brain oxidation in the cognitive impairment in a triple transgenic mouse model of Alzheimer's disease: Noninvasive measurement of the brain redox state by magnetic resonance imaging. Free Radic Res 2013; 47:731-9. [DOI: 10.3109/10715762.2013.818218] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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54
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Cheng J, Dong JQ, Itoh K, Yan LW, Xu M, Zhao KJ, Hong WY, Huang ZH, Ji XQ, Zhong WL, Yu DL, Itoh SI, Nie L, Kong DF, Lan T, Liu AD, Zou XL, Yang QW, Ding XT, Duan XR, Liu Y. Dynamics of low-intermediate-high-confinement transitions in toroidal plasmas. PHYSICAL REVIEW LETTERS 2013; 110:265002. [PMID: 23848884 DOI: 10.1103/physrevlett.110.265002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Indexed: 06/02/2023]
Abstract
The dynamic features of the low-intermediate-high-(L-I-H) confinement transitions on HL-2A tokamak are presented. Here we report the discovery of two types of limit cycles (dubbed type-Y and type-J), which show opposite temporal ordering between the radial electric field and turbulence intensity. In type-Y, which appears first after an L-I transition, the turbulence grows first, followed by the localized electric field. In contrast, the electric field leads type-J. The turbulence-induced zonal flow and pressure-gradient-induced drift play essential roles in the two types of limit cycles, respectively. The condition of transition between types-Y and -J is studied in terms of the normalized radial electric field. An I-H transition is demonstrated to occur only from type-J.
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Tazoe Y, Hayashi H, Tsuboi S, Morishita M, Arai T, Ohshima M, Matsuyama T, Kosuge K, Yamada H, Tsuji D, Inoue K, Itoh K. AB0036 Analysis of genetic polymorphisms in folate pathway affecting the efficacy of methotrexate in japanese patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.36] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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56
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Itoh K, Itoh H, Naka M, Saito S, Hosako I, Yoneyama N, Ishihara S, Sasaki T, Iwai S. Collective excitation of an electric dipole on a molecular dimer in an organic dimer-Mott insulator. PHYSICAL REVIEW LETTERS 2013; 110:106401. [PMID: 23521274 DOI: 10.1103/physrevlett.110.106401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Revised: 12/21/2012] [Indexed: 06/01/2023]
Abstract
The terahertz response in 10-100 cm(-1) was investigated in an organic dimer-Mott (DM) insulator κ-(ET)(2)Cu(2)(CN)(3) that exhibits a relaxorlike dielectric anomaly. An ~30 cm(-1) band in the optical conductivity was attributable to collective excitation of the fluctuating intradimer electric dipoles that are formed by an electron correlation. We succeeded in observing photoinduced enhancement of this ~30 cm(-1) band, reflecting the growth of the electric dipole cluster in the DM phase. Such optical responses in κ-(ET)(2)Cu(2)(CN)(3) reflect an instability near the boundary between the DM-ferroelectric charge ordered phases.
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Itoh K, Pooh R, Kanemura Y, Yamasaki M, Fushiki S. Hypoplasia of the spinal cord in a case of foetal akinesia/arthrogryposis sequences. Neuropathol Appl Neurobiol 2013; 39:441-4. [PMID: 23421748 DOI: 10.1111/nan.12035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 01/29/2013] [Indexed: 11/30/2022]
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Miyamoto H, Seta M, Horiuchi S, Iwasawa Y, Naito T, Nishida A, Miyamoto H, Matsushita T, Itoh K, Kodama H. Potential probiotic thermophiles isolated from mice after compost ingestion. J Appl Microbiol 2013; 114:1147-57. [DOI: 10.1111/jam.12131] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 12/11/2012] [Accepted: 12/13/2012] [Indexed: 12/20/2022]
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59
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Rahman MM, Kitao S, Tsuji D, Suzuki K, Sakamoto JI, Matsuoka K, Matsuzawa F, Aikawa SI, Itoh K. Inhibitory effects and specificity of synthetic sialyldendrimers toward recombinant human cytosolic sialidase 2 (NEU2). Glycobiology 2013; 23:495-504. [DOI: 10.1093/glycob/cws221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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60
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Kozuki T, Nawachi N, Itoh K, Kotera M, Suga H. A bio-electron microscope using DLC film which living cells can be observed in the atmosphere. INTERNATIONAL JOURNAL OF SPACE-BASED AND SITUATED COMPUTING 2013. [DOI: 10.1504/ijssc.2013.051973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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61
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Itoh K, Itoh H, Iwai S, Naka M, Ishihara S, Saito S, Yoneyama N, Sasaki T. Photoinduced Growth of Ferroelectric Charge Order in Organic Dimer-Mott insulator. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20134103020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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62
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Kaminuma T, Katoh H, Ishikawa H, Tamaki T, Shirai K, Matsui H, Itoh K, Ohno T, Suzuki K, Nakano T. Comparison of the Objective and Subjective Assessments of Urinary Condition in Hypofractionated Carbon-ion Radiation Therapy for Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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63
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Naito Y, Fujii S, Itoh K, Nezu M, Matsubara N, Sasaki M, Wada N, Yoneyama K, Mukai H. Correlation, Comparison, and Combined Analysis of KI-67 and Histological Grade for Early Luminal Breast Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32217-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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64
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Matsubara N, Mukai H, Naito Y, Nezu M, Itoh K. The Impact of Additional Prognostic Information Obtained From Ki-67 Changes After Neoadjuvant Chemotherapy Varies in Subtype of Breast Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32929-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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65
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Ema M, Aoyama H, Arima A, Asano Y, Chihara K, Endoh K, Fujii S, Hara H, Higuchi H, Hishikawa A, Hojo H, Horimoto M, Hoshino N, Hosokawa Y, Inada H, Inoue A, Itoh K, Izumi H, Maeda M, Matsumoto K, Matsuo S, Matsuura I, Mineshima H, Miwa Y, Miyata H, Mizoguchi Y, Nakano N, Naya M, Nishizawa H, Noritake KI, Noyori H, Ohta T, Oku H, Shimizu T, Shimomura K, Shiozawa K, Takakura I, Tanaka R, Uesugi T, Yabe K, Yamauchi T, Yokoi R. Historical control data on prenatal developmental toxicity studies in rabbits. Congenit Anom (Kyoto) 2012; 52:155-61. [PMID: 22925216 DOI: 10.1111/j.1741-4520.2012.00365.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Historical control data on rabbit prenatal developmental toxicity studies, performed between 1994-2010, were obtained from 20 laboratories, including 11 pharmaceutical and chemical companies and nine contract laboratories, in Japan. In this paper, data were incorporated from a laboratory if the information was based on 10 studies or more. Japanese White rabbits and New Zealand White rabbits were used for prenatal developmental toxicity studies. The data included maternal reproductive findings at terminal cesarean sections and fetal findings including spontaneous incidences of morphological alterations. No noticeable differences between strains or laboratories were observed in the maternal reproductive and fetal developmental data. The inter-laboratory variations in the incidences of fetal external, visceral, and skeletal alterations seem to be due to differences in the selection of observation parameters, observation criteria, and classification of the findings, and terminology of fetal alterations.
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Murata K, Katoh H, Ishikawa H, Kaminuma T, Ebara T, Miyakubo M, Matsui H, Itoh K, Suzuki K, Nakano T. PO-206 ACUTE TOXICITY OF SINGLE FRACTION BOOST WITH HDR BT AFTER HYPOFRACTIONATED EBRT FOR LOCALLY ADVANCED PROSTATE CANCER. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)72172-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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67
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Itoh K, Masumori S, Nakajima M, Hayashi M, Sakakibara H, Shimoi K. Differences in micronucleus induction in peripheral blood reticulocytes of mice exposed to N-ethyl-N-nitrosourea at light and dark dosing times. J Toxicol Sci 2012; 37:427-30. [PMID: 22467033 DOI: 10.2131/jts.37.427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Mammals, including human beings, have a circadian clock system to regulate behavioral and physiological processes. In this study, we investigated the effect of dosing time on micronucleus induction in the bone marrow by evaluating the frequencies of micronucleated peripheral reticulocytes (MNRETs) in mice exposed to N-ethyl-N-nitrosourea (ENU) to assess any difference in genotoxic sensitivity to chemicals between light and dark periods (inactive phase for rodents and active phase for rodents). Male C3H/He mice were treated intraperitoneally with ENU (12.5 or 25 mg/kg body weight) at zeitgeber time (ZT) 3 in the light period or ZT15 in the dark period, and then the time courses of the frequencies of the MNRETs were determined. The frequencies of the MNRETs induced by ENU increased time-dependently and peaked at 48 hr after treatment for ZT3 and ZT15, and were obviously higher in the ZT15 treatment group than the ZT3 treatment group. The MNRETs were measured at 48 hr after treatment with ENU (25 mg/kg body weight) at various dosing times (ZT0, 3, 6, 12, 15 and 18). The frequencies of the MNRETs in mice treated at ZT0, 15 and 18 were significantly higher than those in mice treated at ZT3, 6 and 12. These results suggest that genotoxic sensitivity to chemicals in mouse bone marrow is different between light and dark periods maybe due to different biological responses (detoxification, cell cycle, DNA repair, etc.) related to circadian rhythms.
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Inagaki S, Tokuzawa T, Itoh K, Ida K, Itoh SI, Tamura N, Sakakibara S, Kasuya N, Fujisawa A, Kubo S, Shimozuma T, Ido T, Nishimura S, Arakawa H, Kobayashi T, Tanaka K, Nagayama Y, Kawahata K, Sudo S, Yamada H, Komori A. Observation of long-distance radial correlation in toroidal plasma turbulence. PHYSICAL REVIEW LETTERS 2011; 107:115001. [PMID: 22026678 DOI: 10.1103/physrevlett.107.115001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Indexed: 05/31/2023]
Abstract
This Letter presents the discovery of macroscale electron temperature fluctuations with a long radial correlation length comparable to the plasma minor radius in a toroidal plasma. Their spatiotemporal structure is characterized by a low frequency of ∼1-3 kHz, ballistic radial propagation, a poloidal or toroidal mode number of m/n=1/1 (or 2/1), and an amplitude of ∼2% at maximum. Nonlinear coupling between the long-range fluctuations and the microscopic fluctuations is identified. A change of the amplitude of the long-range fluctuation is transmitted across the plasma radius at the velocity which is of the order of the drift velocity.
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Itoh K, Ogi H, Yaoi T, Yoshifuji K, Pooh R, Yamasaki M, Fushiki S. Semilobar holoprosencephaly with a unique traversed sylvian sulcus. Neuropathol Appl Neurobiol 2011; 37:685-8. [DOI: 10.1111/j.1365-2990.2011.01161.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nakayawa H, Yoshida M, Shindo M, Nishiyama H, Yamada M, Yoshioka K, Itoh K. 8757 POSTER Intrathecal Sodium Butyrate for Neoplastic Meningitis- Experimental Study and Clinical Trial. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72308-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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71
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Tazumi A, Negoro M, Tomiyama Y, Misawa N, Itoh K, Moore JE, Millar BC, Matsuda M. Uneven distribution of the luxS gene within the genus Campylobacter. Br J Biomed Sci 2011; 68:19-22. [PMID: 21473257 DOI: 10.1080/09674845.2011.11732836] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Polymerase chain reaction (PCR) amplification was performed on 20 isolates of five Campylobacter species using a degenerate primer pair designed in silico to generate a product of the luxS gene or its homologue from Campylobacter organisms. Although the primer pair successfully amplified products of approximately 500 base pairs (bp) with the eight isolates of C. jejuni and C. coli and some of C. upsaliensis and C. fetus, it failed to amplify fragments with all four isolates of C. lari (two urease-negative C. lari; two urease-positive thermophilic campylobacters). When Southern blot hybridisation analysis was carried using the mixed luxS gene fragments prepared from the C. jejuni, C. coli, C. upsaliensis and C. fetus strains as a probe, all C. jejuni, C. coli, C. upsaliensis and C. fetus isolates gave positive signals, but no positive signal was detected with any C. lari isolate. These results clearly indicate that C. jejuni, C. coli, C. upsaliensis and C. fetus carry the luxS gene or its homologue. However, no luxS gene or its homologue was identified to occur in the C. lari genome. Although autoinducer-2 assays were positive in C. jejuni, C. coli, C. upsaliensis and C. fetus isolates, it was negative with all the C. lari isolates examined. In addition, a biofilm formation assay demonstrated that biofilm formation in the C. lari species does not appear to correlate with the occurrence of the luxS gene because biofilm formation occurred among some isolates of C. lari.
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Ohmachi K, Tobinai K, Kobayashi Y, Itoh K, Nakata M, Shibata T, Morishima Y, Ogura M, Suzuki T, Ueda R, Aikawa K, Nakamura S, Fukuda H, Shimoyama M, Hotta T. Phase III trial of CHOP-21 versus CHOP-14 for aggressive non-Hodgkin’s lymphoma: final results of the Japan Clinical Oncology Group Study, JCOG 9809. Ann Oncol 2011; 22:1382-1391. [DOI: 10.1093/annonc/mdq619] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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73
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Momose Y, Park SH, Miyamoto Y, Itoh K. Design of species-specific oligonucleotide probes for the detection of Bacteroides and Parabacteroides by fluorescence in situ hybridization and their application to the analysis of mouse caecal Bacteroides-Parabacteroides microbiota. J Appl Microbiol 2011; 111:176-84. [PMID: 21535330 DOI: 10.1111/j.1365-2672.2011.05039.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS To develop species-specific monitoring techniques for rapid detection of Bacteroides and Parabacteroides inhabiting the mouse intestine by fluorescence in situ hybridization. METHODS AND RESULTS The specificity of oligonucleotide probes was evaluated by fluorescence whole-cell hybridization. Oligonucleotide probes specific for each species hybridized only with the target bacteria. Using these probes, caecal Bacteroides-Parabacteroides microbiota of conventional mice and specific pathogen-free (SPF) mice from three different breeders were analysed. It was shown that Bacteroides acidifaciens Group-1, Group-2 and Group-3 were dominant in conventional mice and SPF mice from two out of three breeders. Bacteroides vulgatus and Parabacteroides distasonis were detected in one of these two SPF breeding colonies in addition to Bact. acidifaciens. SPF mice of the remaining breeder harboured characteristic Bacteroides-Parabacteroides microbiota, consisting of Bacteroides sp. ASF519 and Bacteroides caccae. CONCLUSIONS Bacteroides acidifaciens is the dominant and most typical species in the mouse Bacteroides-Parabacteroides microbiota. The Group-3 was identified as a novel group and revealed to occupy a major niche together with Bact. acidifaciens Group-1 and Group-2. SIGNIFICANCE AND IMPACT OF THE STUDY The species-specific probe set developed in this study was the efficient tool for rapid detection of target bacterial groups inhabiting the mouse intestine. The results of this study provide important new information on the mouse Bacteroides-Parabacteroides community.
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Toh U, Iwakuma N, Otsuka H, Ogo E, Fujii T, Tanaka M, Itoh K, Shirouzu K. P326 Immunologic and clinical effects of personalized selection of peptide vaccines in patients with refractory breast cancer. Breast 2011. [DOI: 10.1016/s0960-9776(11)70264-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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75
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Yuri M, Ueda T, Lee H, Itoh K, Baba T, Harris J. Vapor Phase Epitaxy of GaN Using Gallium Tri-Chloride and Ammonia. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-421-195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractGaN films with good crystalline quality are grown on sapphire by atmospheric pressure vapor phase epitaxy using gallium tri-chloride (GaCl3) and ammonia (NH3). Epitaxial growth is carried out over temperature and V/III-ratio ranges of 800–1000°C and 100–1000, respectively. Typical growth rate obtained is in the range of 5–20 μm/hr. The films grown below 925°C typically show three dimensional (island) growth, while above that temperature, continuous films are obtained. Films grown at 975°C with a V/III ratio > 300 exhibit a smooth surface. XRD analysis shows that the films are single crystal with hexagonal polytype. Strong band-edge photoluminescence is observed with a FWHM of 60 meV at room temperature and 25 meV at 77K. The results indicate that this simple growth technique is effective for growing high quality bulk GaN, which can be used as a substrate for subsequent epitaxy. In order to further improve the surface morphology, a preliminary experiment on GaN growth on a thin GaN buffer layer prepared by gas source MBE is also presented.
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