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Yamamoto S, Wakui H, Kubota H, Komatsuda A, Itoh H, Yokota SI. Aminoglycosides Suppress the Protein Folding Activity of the Molecular Chaperone HSC70: Implication of a Structure-Activity Relationship. Chemotherapy 2014; 60:37-46. [DOI: 10.1159/000365880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 07/14/2014] [Indexed: 11/19/2022]
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77
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Matsuo H, Kajihara M, Tomizawa D, Watanabe T, Saito AM, Fujimoto J, Horibe K, Kodama K, Tokumasu M, Itoh H, Nakayama H, Kinoshita A, Taga T, Tawa A, Taki T, Tanaka S, Adachi S. Prognostic implications of CEBPA mutations in pediatric acute myeloid leukemia: a report from the Japanese Pediatric Leukemia/Lymphoma Study Group. Blood Cancer J 2014; 4:e226. [PMID: 25014773 PMCID: PMC4219441 DOI: 10.1038/bcj.2014.47] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 05/19/2014] [Indexed: 11/30/2022] Open
Abstract
CCAAT/enhancer-binding protein alpha (CEBPA) mutations are a favorable prognostic factor in adult acute myeloid leukemia (AML) patients; however, few studies have examined their significance in pediatric AML patients. Here we examined the CEBPA mutation status and clinical outcomes of pediatric AML patients treated in the AML-05 study. We found that 47 (14.9%) of the 315 evaluable patients harbored mutations in CEBPA; 26 cases (8.3%) harbored a single mutation (CEBPA-single) and 21 (6.7%) harbored double or triple mutations (CEBPA-double). After excluding core-binding factor-AML cases, patients harboring CEBPA mutations showed better overall survival (OS; P=0.048), but not event-free survival (EFS; P=0.051), than wild-type patients. Multivariate analysis identified CEBPA-single and CEBPA-double as independent favorable prognostic factors for EFS in the total cohort (hazard ratio (HR): 0.47 and 0.33; P=0.02 and 0.01, respectively). CEBPA-double was also an independent favorable prognostic factor for OS (HR: 0.30; P=0.04). CEBPA-double remained an independent favorable factor for EFS (HR: 0.28; P=0.04) in the normal karyotype cohort. These results suggest that CEBPA mutations, particularly CEBPA-double, are an independent favorable prognostic factor in pediatric AML patients, which will have important implications for risk-stratified therapy.
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78
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Itoh H, Ertl G. Molecular Orbital Calculations on the Interaction of PF3 and CO with Ni and Cu Atoms. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/zna-1982-0407] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The interaction of Ni and Cu atoms with PF3 and CO ligands was investigated by means of ab initio MO calculations. Coupling occurs mainly through the HOMO (8a1 for PF3 and 5 a for CO) levels with the metal 4s and 3dz2 orbitals, if the 3dn-1 4s1 electronic configuration of the metal atom is considered. The estimated M-PF3 bond lengths are 2.0 Å for Ni and 2.5 Å for Cu. Calculations with Ni(3d10) revealed for PF3 a more pronounced electron transfer to the ligand than for CO. The results are consistent with experimental UPS data for mononuclear complexes as well as corresponding adsorption systems. In particular, split-off d-states observed in UPS data for adsorbed PF3 are attributed to the pronounced lowering of the 3d-orbital energy of the metal atom upon interaction with this electropositive ligand.
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Katayama Y, Terao T, Kamei K, Hatano K, Kohno K, Makino M, Mizokami Y, Kodama K, Itoh H. Therapeutic Window of Lamotrigine for Mood Disorders: A Naturalistic Retrospective Study. PHARMACOPSYCHIATRY 2014; 47:111-4. [DOI: 10.1055/s-0034-1375618] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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80
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Wang XH, Hu L, Klein JD, Minakuchi H, Wakino S, Hosoya K, Yoshifuji A, Hayashi K, Itoh H, Tanaka T, Higashijima Y, Tanaka S, Yamaguchi J, Nangaku M, Martino F, Kielstein J, Bang C, Thum T, Lorenzen J, Stokman G, El-Hachioui M, Florquin S, Pap D, Himer L, Szebeni B, Sziksz E, Riedl Z, Iwakura Y, Nagy Szakal D, Kis E, Onody A, Veres-Szekely A, Javorszky E, Koszegi S, Fekete A, A. Brandt F, Reusz G, Tulassay T, Vannay A. TISSUE INJURY AND REPAIR. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu118] [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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81
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Yoshifuji A, Wakino S, Irie J, Minakuchi H, Hasegawa K, Tokuyama H, Hayashi K, Itoh H, Xu H, Huang X, Riserus U, Cederholm T, Arnlov J, Sjogren P, Lindholm B, Carrero JJ, Poesen R, Windey K, Evenepoel P, De Preter V, Verbeke K, Meijers B, De Roij Van Zuijdewijn CL, Nube MJ, Bots ML, Blankestijn PJ, Van Den Dorpel MA, Ter Wee PM, Grooteman MP, Poesen R, Windey K, Masereeuw R, Van Den Broek PH, Evenepoel P, Meijers B, Verbeke K. CKD NUTRITION. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu131] [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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82
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Chan JSD, Abdo S, Ghosh A, Alquier T, Chenier I, Filep JG, Ingelfinger JR, Zhang SL, Ross EA, Willenberg BJ, Oca-Cossio J, Clapp WL, Terada N, Abrahamson DR, Ellison GW, Matthews CE, Batich CD, Ihoriya C, Satoh M, Sasaki T, Kashihara N, Piwkowska A, Rogacka D, Angielski S, Jankowski M, Pontrelli P, Conserva F, Papale M, Accetturo M, Gigante M, Vocino G, Dipalma AM, Grandaliano G, Di Paolo S, Gesualdo L, Franzen S, Pihl L, Khan N, Gustafsson H, Palm F, Koszegi S, Hodrea J, Lenart L, Hosszu A, Wagner L, Vannay A, Tulassay T, Szabo A, Fekete A, Aoki R, Sekine F, Kikuchi K, Miyazaki S, Yamashita Y, Itoh Y, Kolling M, Park JK, Haller H, Thum T, Lorenzen J, Hirayama A, Yoh K, Ueda A, Itoh H, Owada S, Kokeny G, Szabo L, Fazekas K, Rosivall L, Mozes MM, Kim Y, Koh ES, Lim JH, Kim MY, Chang YS, Park CW, Kim Y, Kim HW, Kim MY, Lim JH, Chang YS, Park CW, Shin BC, Kim HL, Chung JH, Chan JS, Wu TC, Chen JW, Rogacka D, Piwkowska A, Angielski S, Jankowski M, Clotet S, Soler MJ, Rebull M, Pascual J, Riera M, Patinha D, Afonso J, Sousa T, Morato M, Albino-Teixeira A, Kim H, Min HS, Kang MJ, Kim JE, Lee JE, Kang YS, Cha DR, Jo YI, Seo EH, Kim JD, Lee SH, Jorge L, Silva KAS, Luiz RS, Rampaso RR, Lima W, Cunha TS, Schor N, Lee HJ, Park JY, Kim SK, Moon JY, Lee SH, Ihm CG, Lee TW, Jeong KH, Moon JY, Kim S, Park JY, Kim SY, Kim YG, Jeong KH, Lee SH, Ihm CG, Marques C, Mega C, Goncalves A, Rodrigues-Santos P, Teixeira-Lemos E, Teixeira F, Fontes Ribeiro C, Reis F, Fernandes R, Sutariya BK, Badgujar LB, Kshtriya AA, Saraf MN, Chiu CH, Lee WC, Chau YY, Lee LC, Lee CT, Chen JB, Dahan I, Nakhoul F, Thawho N, Ben-Itzhaq O, Levy AP, Conserva F, Pontrelli P, Accetturo M, Cordisco G, Fiorentino L, Federici M, Grandaliano G, Di Paolo S, Gesualdo L, Wystrychowski G, Havel PJ, Graham JL, Zukowska-Szczechowska E, Obuchowicz E, Psurek A, Grzeszczak W, Wystrychowski A, Clotet S, Soler MJ, Rebull M, Gimeno J, Pascual J, Riera M, Almeida BZD, Seraphim DCC, Punaro G, Nascimento M, Mouro M, Lanzoni VP, Lopes GS, Higa EMS, Roca-Ho H, Riera M, Marquez E, Pascual J, Soler MJ. DIABETES EXPERIMENTAL. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu149] [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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83
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Hasegawa K, Ohno S, Kimura H, Itoh H, Makiyama T, Yoshida Y, Horie M. Mosaic KCNJ2 mutation in Andersen-Tawil syndrome: targeted deep sequencing is useful for the detection of mosaicism. Clin Genet 2014; 87:279-83. [PMID: 24635491 DOI: 10.1111/cge.12357] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 01/28/2014] [Accepted: 02/05/2014] [Indexed: 11/29/2022]
Abstract
Andersen-Tawil syndrome (ATS) is an inherited disease characterized by ventricular arrhythmias, periodic paralysis, and dysmorphic features. It results from a heterozygous mutation of KCNJ2, but little is known about mosaicism in ATS. We performed genetic analysis of KCNJ2 in 32 ATS probands and their family members and identified KCNJ2 mutations in 25 probands, 20 families who underwent extensive genetic testing. These tests revealed that seven probands carried de novo mutations while 13 carried inherited mutations from their parents. We then specifically assessed a single proband and the respective family. The proband was a 9 year old girl who fulfilled the ATS triad and carried an insertion mutation (p.75_76insThr). We determined that the proband's mother carried a somatic mosaicism and that the proband's younger brother also carried the ATS phenotype with the same insertion mutation. The mother, who exhibited mosaicism, was asymptomatic, although she exhibited Q(T)U prolongation. Mutant allele frequency was 11% as per TA cloning and 17.3% as per targeted deep sequencing. Our observations suggest that targeted deep sequencing is useful for the detection of mosaicism and that the detection of mosaic mutations in parents of apparently sporadic ATS patients can help in the process of genetic counseling.
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84
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Kokunai Y, Nakata T, Furuta M, Sakata S, Kimura H, Aiba T, Yoshinaga M, Osaki Y, Nakamori M, Itoh H, Sato T, Kubota T, Kadota K, Shindo K, Mochizuki H, Shimizu W, Horie M, Okamura Y, Ohno K, Takahashi MP. A Kir3.4 mutation causes Andersen-Tawil syndrome by an inhibitory effect on Kir2.1. Neurology 2014; 82:1058-64. [DOI: 10.1212/wnl.0000000000000239] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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85
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Yamamoto S, Subedi GP, Hanashima S, Satoh T, Otaka M, Wakui H, Sawada KI, Yokota SI, Yamaguchi Y, Kubota H, Itoh H. ATPase activity and ATP-dependent conformational change in the co-chaperone HSP70/HSP90-organizing protein (HOP). J Biol Chem 2014; 289:9880-6. [PMID: 24535459 PMCID: PMC3975032 DOI: 10.1074/jbc.m114.553255] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Co-chaperones help to maintain cellular homeostasis by modulating the activities of molecular chaperones involved in protein quality control. The HSP70/HSP90-organizing protein (HOP) is a co-chaperone that cooperates with HSP70 and HSP90 in catalysis of protein folding and maturation in the cytosol. We show here that HOP has ATP-binding activity comparable to that of HSP70/HSP90, and that HOP slowly hydrolyzes ATP. Analysis of deletion mutants revealed that the ATPase domain of HOP is in the N-terminal TPR1-DP1-TPR2A segment. In addition, HOP changes its conformation in the presence of ATP. These results indicate that HOP is a unique co-chaperone that undergoes an ATP-dependent conformational change.
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86
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Tago K, Funakoshi-Tago M, Itoh H, Furukawa Y, Kikuchi J, Kato T, Suzuki K, Yanagisawa K. Arf tumor suppressor disrupts the oncogenic positive feedback loop including c-Myc and DDX5. Oncogene 2014; 34:314-22. [DOI: 10.1038/onc.2013.561] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 11/01/2013] [Accepted: 11/25/2013] [Indexed: 01/26/2023]
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87
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Itoh H, Maeda H, Yamada S, Hori Y, Mino T, Sakamoto M. Highly selective aluminium-catalysed intramolecular Prins reaction for l-menthol synthesis. RSC Adv 2014. [DOI: 10.1039/c4ra12470g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The perfect production of l-menthol.
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88
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Wakuya H, Horinouchi Y, Itoh H. Development of an Application for Mobile Devices to Analyze Data Set by a Self-Organizing Map : A Case Study on Saga Prefectural Sightseeing Information. INTERNATIONAL JOURNAL OF CONTENTS 2013. [DOI: 10.5392/ijoc.2013.9.3.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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89
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Itoh H, Miyamoto S, Word R. Progesterone and transforming growth factor Beta 1 (tgfβ1) regulate matrix metalloproteinases (MMPs) in human normal endometrium and endometriosis. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.788] [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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90
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Ohno S, Fukuyama M, Itoh H, Makiyama T, Horie M. Copy number variations in KCNQ1 gene were frequently identified in the pediatric patients of long QT syndrome and caused exercise related QT prolongation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p2291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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91
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Yamamoto S, Yokota S, Wakui H, Kubota H, Itoh H, Fujii N. P35 Aminoglycoside antibiotics suppress the heat shock protein 70 function. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70280-2] [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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92
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Arias MC, Atteke C, Augusto SC, Bailey J, Bazaga P, Beheregaray LB, Benoit L, Blatrix R, Born C, Brito RM, Chen H, Covarrubias S, Vega C, Djiéto‐Lordon C, Dubois M, Francisco FO, García C, Gonçalves PHP, González C, Gutiérrez‐Rodríguez C, Hammer MP, Herrera CM, Itoh H, Kamimura S, Karaoglu H, Kojima S, Li S, Ling HJ, Matos‐Maraví PF, McKey D, Mezui‐M'Eko J, Ornelas JF, Park RF, Pozo MI, Ramula S, Rigueiro C, Sandoval‐Castillo J, Santiago LR, Seino MM, Song C, Takeshima H, Vasemägi A, Wellings CR, Yan J, Yu‐Zhou D, Zhang C, Zhang T. Permanent Genetic Resources added to Molecular Ecology Resources Database 1 February 2013–31 March 2013. Mol Ecol Resour 2013; 13:760-2. [DOI: 10.1111/1755-0998.12121] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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93
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Haga A, Okamoto T, Yamada S, Kubota T, Sanpei A, Takahashi S, Nakayama M, Nagai M, Otaka M, Miyazaki T, Nunomura W, Grave E, Itoh H. Zinc-L-carnosine binds to molecular chaperone HSP70 and inhibits the chaperone activity of the protein. J Biochem 2013; 154:249-56. [DOI: 10.1093/jb/mvt041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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94
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Saisho Y, Itoh H. Dipeptidyl peptidase-4 inhibitors and angioedema: a class effect? Diabet Med 2013; 30:e149-50. [PMID: 23323612 DOI: 10.1111/dme.12134] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 09/12/2012] [Accepted: 01/10/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND Dipeptidyl peptidase-4 (DPP-4) inhibitors have been reported to be generally well tolerated. However, angioedema has been reported as one of the rare adverse events of these drugs. CASE REPORT We report a case in which angioedema induced by vildagliptin disappeared after changing to another DPP-4 inhibitor, alogliptin. DISCUSSION Our case suggests that there is a difference in the risk of angioedema among DPP-4 inhibitors. To clarify this possibility, further investigation on the risk of angioedema among DPP-4 inhibitors is warranted.
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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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Hatta T, Takeda K, Shiotsu Y, Sugishita C, Adachi T, Kimura T, Sonomura K, Kusaba T, Kishimioto N, Narumiya H, Tanda S, Tamagaki K, Yamada K, Kameyama H, Kido H, Harada S, Bito Y, Moriguchi J, Morimoto S, Okigaki M, Itoh H, Mori Y, Nakata T, Maki K, Sasaki S, Sawada K, Matsubara H. Switching to an L/N-type calcium channel blocker shows renoprotective effects in patients with chronic kidney disease: the Kyoto Cilnidipine Study. J Int Med Res 2013; 40:1417-28. [PMID: 22971493 DOI: 10.1177/147323001204000420] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE This open-label, randomized controlled trial investigated the effects of cilnidipine, an L/N-type calcium channel blocker (CCB), in patients with chronic kidney disease (CKD). METHODS Sixty patients with CKD and well-controlled hypertension being treated with a renin- angiotensin system (RAS) inhibitor and an L-type CCB (L-CCB) were randomly assigned either to switch from the L-CCB to cilnidipine after a 4-week observation period or to continue with L-CCB treatment. Blood pressure, heart rate and renal function were monitored for 12 months. Data were available for analysis from 50 patients: 24 from the cilnidipine group and 26 from the L-CCB group. RESULTS Blood pressure was well controlled in both groups. After 12 months, proteinuria and heart rate were significantly decreased in the cilnidipine group, but proteinuria increased and heart rate remained unchanged in the L-CCB group. There was a significant positive correlation between the percentage changes in proteinuria and heart rate. CONCLUSIONS Cilnidipine has antihypertensive effects equivalent to those of L-CCBs. In patients with CKD, proteinuria can be decreased by switching from an L-CCB to cilnidipine, thereby improving renal function.
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Iwai S, Kawakami Y, Ishikawa T, Sakurai Y, Itoh H, Yamamoto K, Sasaki T. Coherent Electron Dynamics in 10 fs Time Scale in Organic Charge Ordered and Dimer-Mott Insulators. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20134103019] [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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98
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Ishikawa T, Yamada K, Itoh H, Iwai S, Arima T, Yamada S, Sasaki T. Photoinduced Coherent Spin Fluctuation in Primary Dynamics of Insulator to Metal Transition in Perovskite Cobalt Oxide. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20134103013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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99
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Yuzawa H, Yoneyama S, Yamamoto A, Aoki M, Otake K, Itoh H, Yoshida H. Anti-Markovnikov hydration of alkenes over platinum-loaded titanium oxide photocatalyst. Catal Sci Technol 2013. [DOI: 10.1039/c3cy00019b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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100
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Kamiyoshihara M, Ibe T, Igai H, Kawatani N, Takise A, Itoh H, Shimizu K. Roentgenological occult large-cell neuroendocrine carcinoma: Report of a long-term survivor. Respir Med Case Rep 2013; 8:14-7. [PMID: 26029607 PMCID: PMC3920432 DOI: 10.1016/j.rmcr.2012.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Revised: 12/05/2012] [Accepted: 12/11/2012] [Indexed: 11/22/2022] Open
Abstract
A 64-year-old male patient complained of a one-month history of bloody sputum. A polypoid tumor was almost obstructing the orifice of the subsegmental bronchus (B8b) of the anterior basal segment of the right lower lobe on bronchoscopy. Biopsy specimens of the tumor surface yielded a diagnosis of undifferentiated carcinoma. Clinical staging was T1aN0M0, stage IA. Surgical resection that comprised a right upper lobectomy with systematic mediastinal and hilar lymph node dissection was performed. Histopathologically, the tumor specimen was compatible with large-cell neuroendocrine carcinoma (LCNEC) of the subsegmental bronchus. Pathological staging was T1aN0M0, stage IA. To our knowledge, few cases of central-type LCNEC have been reported in the English literature, and ours is the first report of roentgenological occult LCNEC.
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