76
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Cheng G, Liu F, Asai T, Lai F, Man N, Xu H, Chen S, Greenblatt S, Hamard PJ, Ando K, Chen X, Wang L, Martinez C, Tadi M, Wang L, Xu M, Yang FC, Shiekhattar R, Nimer SD. Loss of p300 accelerates MDS-associated leukemogenesis. Leukemia 2016; 31:1382-1390. [PMID: 27881875 DOI: 10.1038/leu.2016.347] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/14/2016] [Accepted: 10/21/2016] [Indexed: 12/19/2022]
Abstract
The role that changes in DNA methylation and histone modifications have in human malignancies is poorly understood. p300 and CREB-binding protein (CBP), two distinct but highly homologous lysine acetyltransferases, are mutated in several cancers, suggesting their role as tumor suppressors. In the current study, we found that deletion of p300, but not CBP, markedly accelerated the leukemogenesis ofNup98-HoxD13 (NHD13) transgenic mice, an animal model that phenotypically copies human myelodysplastic syndrome (MDS). p300 deletion restored the ability of NHD13 expressing hematopoietic stem and progenitor cells (HSPCs) to self-renew in vitro, and to expand in vivo, with an increase in stem cell symmetric self-renewal divisions and a decrease in apoptosis. Furthermore, loss of p300, but not CBP, promoted cytokine signaling, including enhanced activation of the MAPK and JAK/STAT pathways in the HSPC compartment. Altogether, our data indicate that p300 has a pivotal role in blocking the transformation of MDS to acute myeloid leukemia, a role distinct from that of CBP.
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Suzuki Y, Sato H, Okonogi N, Yoshimoto Y, Ando K, Onishi M, Murata H, Nakano T. Changes in High Mobility Group Box 1 (HMGB1) Levels and T Cell Activity After Carbon Ion Radiation Therapy In Vivo. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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78
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Nakayama H, Kanno Y, An H, Tashiro T, Haku S, Nomura A, Ando K. Rashba-Edelstein Magnetoresistance in Metallic Heterostructures. PHYSICAL REVIEW LETTERS 2016; 117:116602. [PMID: 27661708 DOI: 10.1103/physrevlett.117.116602] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Indexed: 06/06/2023]
Abstract
We report the observation of magnetoresistance originating from Rashba spin-orbit coupling (SOC) in a metallic heterostructure: the Rashba-Edelstein (RE) magnetoresistance. We show that the simultaneous action of the direct and inverse RE effects in a Bi/Ag/CoFeB trilayer couples current-induced spin accumulation to the electric resistance. The electric resistance changes with the magnetic-field angle, reminiscent of the spin Hall magnetoresistance, despite the fact that bulk SOC is not responsible for the magnetoresistance. We further found that, even when the magnetization is saturated, the resistance increases with increasing the magnetic-field strength, which is attributed to the Hanle magnetoresistance in this system.
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79
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Hidayat R, Ando K, Masumoto Y, Luo JJ. Interannual Variability of Rainfall over Indonesia: Impacts of ENSO and IOD and Their Predictability. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1755-1315/31/1/012043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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80
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Okonogi N, Ohno T, Noda S, Murata K, Kobayashi D, Ando K, Shibuya K, Wakatsuki M, Kiyohara H, Nakano T. Clinical Outcome of CT-Based Image Guided Adaptive Brachytherapy Combined With Conformal Radiation Therapy in Patients With Uterine Cervical Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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81
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Corlier F, Rivals I, Lagarde J, Hamelin L, Corne H, Dauphinot L, Ando K, Cossec JC, Fontaine G, Dorothée G, Malaplate-Armand C, Olivier JL, Dubois B, Bottlaender M, Duyckaerts C, Sarazin M, Potier MC. Modifications of the endosomal compartment in peripheral blood mononuclear cells and fibroblasts from Alzheimer's disease patients. Transl Psychiatry 2015; 5:e595. [PMID: 26151923 PMCID: PMC5068716 DOI: 10.1038/tp.2015.87] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/21/2015] [Indexed: 12/16/2022] Open
Abstract
Identification of blood-based biomarkers of Alzheimer's disease (AD) remains a challenge. Neuropathological studies have identified enlarged endosomes in post-mortem brains as the earliest cellular change associated to AD. Here the presence of enlarged endosomes was investigated in peripheral blood mononuclear cells from 48 biologically defined AD patients (25 with mild cognitive impairment and 23 with dementia (AD-D)), and 23 age-matched healthy controls using immunocytochemistry and confocal microscopy. The volume and number of endosomes were not significantly different between AD and controls. However, the percentage of cells containing enlarged endosomes was significantly higher in the AD-D group as compared with controls. Furthermore, endosomal volumes significantly correlated to [C(11)]PiB cortical index measured by positron emission tomography in the AD group, independently of the APOE genotype, but not to the levels of amyloid-beta, tau and phosphorylated tau measured in the cerebrospinal fluid. Importantly, we confirmed the presence of enlarged endosomes in fibroblasts from six unrelated AD-D patients as compared with five cognitively normal controls. This study is the first, to our knowledge, to report morphological alterations of the endosomal compartment in peripheral cells from AD patients correlated to amyloid load that will now be evaluated as a possible biomarker.
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82
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Hikishima K, Ando K, Komaki Y, Kawai K, Yano R, Inoue T, Itoh T, Yamada M, Momoshima S, Okano HJ, Okano H. Voxel-based morphometry of the marmoset brain: In vivo detection of volume loss in the substantia nigra of the MPTP-treated Parkinson's disease model. Neuroscience 2015; 300:585-92. [PMID: 26012491 DOI: 10.1016/j.neuroscience.2015.05.041] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 05/14/2015] [Accepted: 05/16/2015] [Indexed: 11/30/2022]
Abstract
Movement dysfunction in Parkinson's disease (PD) is caused by the degeneration of dopaminergic (DA) neurons in the substantia nigra (SN). Here, we established a method for voxel-based morphometry (VBM) and automatic tissue segmentation of the marmoset monkey brain using a 7-T animal scanner and applied the method to assess DA degeneration in a PD model, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated animals, with tyrosine-hydroxylase staining. The most significant decreases of local tissue volume were detected in the bilateral SN of MPTP-treated marmoset brains (-53.0% in right and -46.5% in left) and corresponded with the location of DA neurodegeneration found in histology (-65.4% in right). In addition to the SN, the decreases were also confirmed in the locus coeruleus, and lateral hypothalamus. VBM using 7-T MRI was effective in detecting volume loss in the SN of the PD-model marmoset. This study provides a potential basis for the application of VBM with ultra-high field MRI in the clinical diagnosis of PD. The developed method may also offer value in automatic whole-brain evaluation of structural changes for the marmoset monkey.
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83
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Li ZG, Xiong S, Chin LK, Ando K, Zhang JB, Liu AQ. Water's tensile strength measured using an optofluidic chip. LAB ON A CHIP 2015; 15:2158-2161. [PMID: 25812076 DOI: 10.1039/c5lc00048c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper, for the first time, the tensile strength of water is directly measured using an optofluidic chip based on the displacement of air-water interface deformation with homogeneous nucleation. When water in a microchannel is stretched dynamically via laser-induced shock reflection at the air-water interface, the shock pressures are determined by measuring the displacements of the deformed interface. Observation of the vapor bubbles is used as a probe to identify the cavitation threshold with a critical distance, and the tensile strength of water at 20 °C is measured to be -33.3 ± 2.8 MPa. This method can be extended to investigate the tensile strength of other soft materials such as glycerol, which is measured to be -59.8 ± 10.7 MPa at 20 °C.
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84
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Zayets V, Saito H, Ando K, Yuasa S. Long-distance propagation of a surface plasmon on the surface of a ferromagnetic metal. OPTICS EXPRESS 2015; 23:12834-12839. [PMID: 26074537 DOI: 10.1364/oe.23.012834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A method for the reduction of the propagation loss of surface plasmons was proposed and experimentally demonstrated. A plasmonic structure, which contains a metal and two dielectric layers of different refractive indexes, is proposed in order to optimize the optical confinement and to reduce the propagation loss of the surface plasmons. Long-distance propagation of a surface plasmon on the surface of a ferromagnetic metal was demonstrated. A low propagation loss of 0.17 dB/μm for a surface plasmon in a Fe/MgO/AlGaAs plasmonic structure was achieved.
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85
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Xiong S, Chin LK, Ando K, Tandiono T, Liu AQ, Ohl CD. Droplet generation via a single bubble transformation in a nanofluidic channel. LAB ON A CHIP 2015; 15:1451-1457. [PMID: 25605556 DOI: 10.1039/c4lc01184h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Here we report the first demonstration on droplet generation from the transformation of a single bubble in a nanofluidic channel by a laser-induced jet. A viscous two-dimensional Rayleigh-Plesset-type model is derived to describe the bubble dynamics in the nanofluidic channel, which accounts for the effect of shear stresses from the channel wall. The droplet generation (number and volume) is investigated experimentally by controlling the jet velocity via laser energy and distance. This study expands the understanding of jetting in the nanofluidic channel and demonstrates a novel method for femtoliter-volume single or multiple droplet formation. It is envisioned that this work will open new doors in on-demand generation of nanodroplets.
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86
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Sakimura H, Tashiro T, Ando K. Nonlinear spin-current enhancement enabled by spin-damping tuning. Nat Commun 2014; 5:5730. [PMID: 25487916 DOI: 10.1038/ncomms6730] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 10/31/2014] [Indexed: 11/09/2022] Open
Abstract
When a magnon, the quanta of a spin excitation, is created in a magnet, this quasiparticle can split into two magnons, which triggers an angular momentum flow from the lattice to the spin subsystem. Although this process is known to enhance spin-current emission at metal/magnetic insulator interfaces, the role of interacting magnons in spintronic devices is still not well-understood. Here, we show that the enhanced spin-current emission is enabled by spin-damping tuning triggered by the redistribution of magnons. This is evidenced by time-resolved measurements of magnon lifetimes using the inverse spin Hall effect. Furthermore, we demonstrate nonlinear enhancement of the spin conversion triggered by scattering processes that conserve the number of magnons, illustrating the crucial role of spin-damping tuning in the nonlinear spin-current emission. These findings provide a crucial piece of information for the development of nonlinear spin-based devices, promising important advances in insulator spintronics.
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87
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Shibasaki M, Ishikawa Y, Ando K, Ikekubo Y, Mori T, Suzuki T. P-26 * CHANGE IN ALDEHYDE DEHYDROGENASE BY CHRONIC TREATMENT WITH ETHANOL IN THE MOUSE BRAIN. Alcohol Alcohol 2014. [DOI: 10.1093/alcalc/agu054.26] [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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88
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Sato H, Suzuki Y, Ide M, Katoh T, Noda S, Ando K, Oike T, Yoshimoto Y, Okonogi N, Mimura K, Asao T, Kuwano H, Takashi N. HLA Class I Expression and Its Alteration by Preoperative Hyperthermo-Chemoradiation Therapy in Patients With Rectal Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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89
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Suzuki Y, Yoshimoto Y, Oike T, Okonogi N, Ando K, Sato H, Noda S, Isono M, Mimura K, Kono K, Nakano T. Carbon-Ion Beam and X-Ray Irradiation Increase a Release of an Immune Mediator Protein High Mobility Group Box 1 (HMGB1) in Various Human Cancer Cell Lines. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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90
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Ando K. Increased Salt Sensitivity in Obese Hypertension:Role of the Sympathetic Nervous System. Curr Hypertens Rev 2014:CHYR-EPUB-61209. [PMID: 24993282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 06/26/2014] [Indexed: 06/03/2023]
Abstract
Salt sensitivity of blood pressure (BP) is increased in hypertension associated with obesity and/or metabolic disorders. Reversely, patients with salt-sensitive hypertension often reveal metabolic disorders. Thus, salt excess and overeating, which are major bad dietary habits in civilized men and women, strengthen the effect to increase BP each other. Actually, there are similar pathophysiological characteristics between hypertension induced by high salt intake and obesity: the sympathetic excitation has been suggested to contribute to increase in BP of the two types of hypertension. Also, several investigators indicated that reactive oxygen species (ROS) production is increased in important organs of salt-sensitive and/or obese hypertension. Recently, we demonstrated that, in salt- and obesity-induced hypertension, hypothalamic ROS levels was elevated and intracerebroventricular antioxidants suppress BP and renal sympathetic nerve activity more profoundly, compared to their control. Thus, it is suggested that brain ROS overproduction increases BP through central symapthoexcitation in salt- and obesity-induced hypertension, which are often associated.
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91
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Itonaga H, Imanishi D, Wong YF, Sato S, Ando K, Sawayama Y, Sasaki D, Tsuruda K, Hasegawa H, Imaizumi Y, Taguchi J, Tsushima H, Yoshida S, Fukushima T, Hata T, Moriuchi Y, Yanagihara K, Miyazaki Y. Expression of myeloperoxidase in acute myeloid leukemia blasts mirrors the distinct DNA methylation pattern involving the downregulation of DNA methyltransferase DNMT3B. Leukemia 2014; 28:1459-66. [PMID: 24457336 DOI: 10.1038/leu.2014.15] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 12/19/2013] [Indexed: 12/21/2022]
Abstract
Myeloperoxidase (MPO) has been associated with both a myeloid lineage commitment and favorable prognosis in patients with acute myeloid leukemia (AML). DNA methyltransferase inhibitors (decitabine and zeburaline) induced MPO gene promoter demethylation and MPO gene transcription in AML cells with low MPO activity. Therefore, MPO gene transcription was directly and indirectly regulated by DNA methylation. A DNA methylation microarray subsequently revealed a distinct methylation pattern in 33 genes, including DNA methyltransferase 3 beta (DNMT3B), in CD34-positive cells obtained from AML patients with a high percentage of MPO-positive blasts. Based on the inverse relationship between the methylation status of DNMT3B and MPO, we found an inverse relationship between DNMT3B and MPO transcription levels in CD34-positive AML cells (P=0.0283). In addition, a distinct methylation pattern was observed in five genes related to myeloid differentiation or therapeutic sensitivity in CD34-positive cells from AML patients with a high percentage of MPO-positive blasts. Taken together, the results of the present study indicate that MPO may serve as an informative marker for identifying a distinct and crucial DNA methylation profile in CD34-positive AML cells.
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MESH Headings
- Antigens, CD34/metabolism
- Bone Marrow/pathology
- Bone Marrow Cells/metabolism
- Bone Marrow Cells/pathology
- CCAAT-Enhancer-Binding Proteins/genetics
- Cell Line, Tumor
- Cluster Analysis
- DNA (Cytosine-5-)-Methyltransferases/genetics
- DNA (Cytosine-5-)-Methyltransferases/metabolism
- DNA Methylation
- Epigenesis, Genetic
- Gene Expression Profiling
- Gene Expression Regulation, Leukemic
- Humans
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Mutation
- Nuclear Proteins/genetics
- Nucleophosmin
- Peroxidase/genetics
- Peroxidase/metabolism
- fms-Like Tyrosine Kinase 3/genetics
- DNA Methyltransferase 3B
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92
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Nakajima Y, Hattori Y, Ito S, Ohshima R, Kuwabara H, Machida S, Shirasugi Y, Miyazaki K, Sakai R, Tomita N, Ando K, Higashihara M, Ishigatsubo Y, Fujisawa S. Acute leukemia during pregnancy: an investigative survey of the past 11 years. Int J Lab Hematol 2014; 37:174-80. [DOI: 10.1111/ijlh.12256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 04/13/2014] [Indexed: 12/21/2022]
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93
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Sciancalepore AG, Sallustio F, Girardo S, Passione LG, Camposeo A, Mele E, Di Lorenzo M, Costantino V, Schena FP, Pisignano D, Casino FG, Mostacci SD, Di Carlo M, Sabato A, Procida C, Creput C, Vanholder R, Stolear JC, Lefrancois G, Hanoy M, Nortier J, Potier J, Sereni L, Ferraresi M, Pereno A, Nazha M, Barbero S, Piccoli GB, Ficheux A, Gayrard N, Duranton F, Guzman C, Szwarc I, Bismuth -Mondolfo J, Brunet P, Servel MF, Argiles A, Bernardo A, Demers J, Hutchcraft A, Marbury TC, Minkus M, Muller M, Stallard R, Culleton B, Krieter DH, Korner T, Devine E, Ruth M, Jankowski J, Wanner C, Lemke HD, Surace A, Rovatti P, Steckiph D, Mancini E, Santoro A, Leypoldt JK, Agar BU, Bernardo A, Culleton BF, Vankova S, Havlin J, Klomp DJ, Van Beijnum F, Day JPR, Wieringa FP, Kooman JP, Gremmels H, Hazenbrink DH, Simonis F, Otten ML, Wester M, Boer WH, Joles JA, Gerritsen KG, Umimoto K, Shimamoto Y, Mastushima K, Miyata M, Muller M, Naik A, Pokropinski S, Bairstow S, Svatek J, Young S, Johnson R, Bernardo A, Rikker C, Juhasz E, Gaspar R, Rosivall L, Rusu E, Zilisteanu D, Balanica S, Achim C, Atasie T, Carstea F, Voiculescu M, Monzon Vazquez T, Saiz Garcia S, Mathani V, Escamilla Cabrera B, Cornelis T, Van Der Sande FM, Eloot S, Cardinaels E, Bekers O, Damoiseaux J, Leunissen KM, Kooman J, Baamonde Laborda E, Bosch Benitez-Parodi E, Perez Suarez G, Anton Perez G, Batista Garcia F, Lago Alonso M, Garcia Canton C, Hashimoto S, Seki M, Tomochika M, Yamamoto R, Okamoto N, Nishikawa A, Koike T, Ravagli E, Maldini L, Badiali F, Perazzini C, Lanciotti G, Steckiph D, Surace A, Rovatti P, Severi S, Rigotti A, McFarlane P, Marticorena R, Dacouris N, Pauly R, Nikitin S, Amdahl M, Bernardo A, Culleton B, Calabrese G, Mancuso D, Mazzotta A, Vagelli G, Balenzano C, Steckiph D, Bertucci A, Della Volpe M, Gonella M, Uchida T, Ando K, Kofuji M, Higuchi T, Momose N, Ito K, Ueda Y, Miyazawa H, Kaku Y, Nabata A, Hoshino T, Mori H, Yoshida I, Ookawara S, Tabei K, Umimoto K, Suyama M, Shimamoto Y, Miyata M, Kamada A, Sakai R, Minakawa A, Fukudome K, Hisanaga S, Ishihara T, Yamada K, Fukunaga S, Inagaki H, Tanaka C, Sato Y, Fujimoto S, Potier J, Bouet J, Queffeulou G, Bell R, Nolin L, Pichette V, Provencher H, Lamarche C, Nadeau-Fredette AC, Ouellet G, Leblanc M, Bezzaoucha S, Kouidmir Y, Kassis J, Alonso ML, Lafrance JP, Vallee M, Fils J, Mailley P, Cantaluppi V, Medica D, Quercia AD, Dellepiane S, Ferrario S, Gai M, Leonardi G, Guarena C, Caiazzo M, Biancone L, Enos M, Culleton B, Wiebenson D, Potier J, Hanoy M, Duquennoy S, Tingli W, Ling Z, Yunying S, Ping F, Dolley-Hitze T, Hamel D, Lombart ML, Leypoldt JK, Bernardo A, Hutchcraft AM, Vanholder R, Culleton BF, Movilli E, Camerini C, Gaggia P, Zubani R, Feller P, Pola A, Carli O, Salviani C, Manenti C, Cancarini G, Bozzoli L, Colombini E, Ricchiuti G, Pisanu G, Gargani L, Donadio C, Sidoti A, Lusini ML, Biagioli M, Ghezzi PM, Sereni L, Caiazzo M, Palladino G, Tomo T, Ishida K, Nakata T, Hamel D, Dolley-Hitze T. HAEMODIALYSIS TECHNIQUES AND ADEQUACY 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu153] [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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94
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Sadanaga T, Ando K, Hirota S, Mitamura H, Tsuchihashi T, Kohsaka S, Fukuda K, Ogawa S. B-type natriuretic peptide levels are decreased by reducing dietary salt intake in patients with compensated heart failure with preserved ejection fraction. Intern Med J 2014; 43:663-7. [PMID: 23279137 DOI: 10.1111/imj.12063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2012] [Accepted: 12/05/2012] [Indexed: 11/27/2022]
Abstract
BACKGROUND Dietary salt restriction is believed to be a mainstay in the management of patients with heart failure. However, the effect of salt intake on heart failure has not been well evaluated in outpatient medical practice. AIMS The aim of the present study was to assess the hypothesis that B-type natriuretic peptide (BNP) level, as an objective marker of heart failure, is associated with salt intake in patients with heart failure. METHODS One hundred and thirteen consecutive patients with mild compensated heart failure (77 ± 10 years old, 51 female) were included. We estimated dietary salt intake by the concentration of sodium and creatinine in spot urine. We measured BNP at the time of urine sampling and assessed the relationship between the % changes in BNP levels (%ΔBNP) and the changes in the estimated daily salt excretion (ΔNaCl) during the follow-up period. RESULTS The baseline median BNP level was 150 (interquartile range: 83-263) pg/mL and the estimated daily salt excretion was 162 ± 45 mmol/day. There was a positive correlation between %ΔBNP and ΔNaCl (r = 0.61, P < 0.01). Multiple regression analysis revealed that %ΔBNP was associated with ΔNaCl (P < 0.01), but not with changes in systolic blood pressure and bodyweight. CONCLUSIONS Changes in BNP levels were associated with changes in the estimated daily salt excretion in outpatients with compensated heart failure. Salt restriction may be beneficial for the management of patients with heart failure.
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Wakatsuki M, Kato S, Ohno T, Karasawa K, Irie D, Ando K, Kiyohara H, Nakano T, Kamada T, Shozu M. PO-0755: Prophylactic extended-field carbon-ion radiotherapy for locally advanced uterine cervical cancer. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30873-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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96
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Miwa S, Ishibashi S, Tomita H, Nozaki T, Tamura E, Ando K, Mizuochi N, Saruya T, Kubota H, Yakushiji K, Taniguchi T, Imamura H, Fukushima A, Yuasa S, Suzuki Y. Highly sensitive nanoscale spin-torque diode. NATURE MATERIALS 2014; 13:50-56. [PMID: 24141450 DOI: 10.1038/nmat3778] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 09/14/2013] [Indexed: 06/02/2023]
Abstract
Highly sensitive microwave devices that are operational at room temperature are important for high-speed multiplex telecommunications. Quantum devices such as superconducting bolometers possess high performance but work only at low temperature. On the other hand, semiconductor devices, although enabling high-speed operation at room temperature, have poor signal-to-noise ratios. In this regard, the demonstration of a diode based on spin-torque-induced ferromagnetic resonance between nanomagnets represented a promising development, even though the rectification output was too small for applications (1.4 mV mW(-1)). Here we show that by applying d.c. bias currents to nanomagnets while precisely controlling their magnetization-potential profiles, a much greater radiofrequency detection sensitivity of 12,000 mV mW(-1) is achievable at room temperature, exceeding that of semiconductor diode detectors (3,800 mV mW(-1)). Theoretical analysis reveals essential roles for nonlinear ferromagnetic resonance, which enhances the signal-to-noise ratio even at room temperature as the size of the magnets decreases.
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Hatake K, Ogura M, Ishida T, Taniwaki M, Ando K, Tobinai K, Yamamoto K, Tsukasaki K, Tomonaga M, Ueda R. A Multicenter Phase II Study of Mogamulizumab (KW-0761) in Patients with Relapsed Peripheral or Cutaneous T-Cell Lymphoma. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Oike T, Ohno T, Noda S, Kiyohara H, Ando K, Shibuya K, Tamaki T, Takakusagi Y, Sato H, Nakano T. Can Combined Intracavitary/Interstitial Approach Be an Alternative to Interstitial Brachytherapy in Computed Tomography-Guided Adaptive Brachytherapy for Gynecological Malignancies?: A Dosimetric Study. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wakatsuki M, Kato S, Ohno T, Karasawa K, Ando K, Kiyohara H, Daisuke I, Nakano T, Kamada T, Shozu M. Carbon Ion Radiation Therapy for Locally-Advanced Adenocarcinoma of the Uterine Cervix. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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