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Ono M, Sawa Y, Fukushima N, Ichikawa H, Ueno M, Hirata Y, Sakamoto K, Suzuki T, Kaneko Y. Long-term Results of Berlin Heart EXCOR Pediatric Implantation in Japan. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Takagi R, Yu XZ, White JS, Shibata K, Kaneko Y, Tatara G, Rønnow HM, Tokura Y, Seki S. Low-Field Bi-Skyrmion Formation in a Noncentrosymmetric Chimney Ladder Ferromagnet. Phys Rev Lett 2018; 120:037203. [PMID: 29400522 DOI: 10.1103/physrevlett.120.037203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Indexed: 06/07/2023]
Abstract
The real-space spin texture and the relevant magnetic parameters were investigated for an easy-axis noncentrosymmetric ferromagnet Cr_{11}Ge_{19} with Nowotny chimney ladder structure. Using Lorentz transmission electron microscopy, we report the formation of bi-Skyrmions, i.e., pairs of spin vortices with opposite magnetic helicities. The quantitative evaluation of the magnetocrystalline anisotropy and Dzyaloshinskii-Moriya interaction (DMI) proves that the magnetic dipolar interaction plays a more important role than the DMI on the observed bi-Skyrmion formation. Notably, the critical magnetic field value required for the formation of bi-Skyrmions turned out to be extremely small in this system, which is ascribed to strong easy-axis anisotropy associated with the characteristic helix crystal structure. The family of Nowotny chimney ladder compounds may offer a unique material platform where two distinctive Skyrmion formation mechanisms favoring different topological spin textures can become simultaneously active.
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Affiliation(s)
- R Takagi
- RIKEN Center for Emergent Matter Science(CEMS), Wako 351-0198, Japan
| | - X Z Yu
- RIKEN Center for Emergent Matter Science(CEMS), Wako 351-0198, Japan
| | - J S White
- Laboratory for Neutron Scattering and Imaging (LNS), Paul Scherrer Institute (PSI), CH-5232 Villigen, Switzerland
| | - K Shibata
- RIKEN Center for Emergent Matter Science(CEMS), Wako 351-0198, Japan
| | - Y Kaneko
- RIKEN Center for Emergent Matter Science(CEMS), Wako 351-0198, Japan
| | - G Tatara
- RIKEN Center for Emergent Matter Science(CEMS), Wako 351-0198, Japan
| | - H M Rønnow
- Laboratory for Quantum Magnetism (LQM), Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Y Tokura
- RIKEN Center for Emergent Matter Science(CEMS), Wako 351-0198, Japan
- Department of Applied Physics, University of Tokyo, Bunkyo-ku 113-8656, Japan
| | - S Seki
- RIKEN Center for Emergent Matter Science(CEMS), Wako 351-0198, Japan
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Oshiro T, Baba M, Fujita M, Kaneko Y, Takeda S, Hirano R, Mawatari K, Ishibashi Y, Miyabayashi I. The association for knowledge for the effect of respiratory infection, preventive action, and prevention of exacerbation in patients with COPD. Respir Med 2017. [DOI: 10.1016/j.rmed.2017.07.034] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ikuma D, Hiromura K, Kajiyama H, Suwa J, Ikeuchi H, Sakairi T, Kaneko Y, Maeshima A, Kurosawa H, Hirayama Y, Yokota K, Araki Y, Sato K, Asanuma YF, Akiyama Y, Hara M, Nojima Y, Mimura T. The correlation of urinary podocytes and podocalyxin with histological features of lupus nephritis. Lupus 2017; 27:484-493. [PMID: 29050536 DOI: 10.1177/0961203317734918] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Objectives The objective of this study was to test the correlation of urinary podocyte number (U-Pod) and urinary podocalyxin levels (U-PCX) with histology of lupus nephritis. Methods This was an observational, cross-sectional study. Sixty-four patients were enrolled: 40 with lupus nephritis and 24 without lupus nephritis (12 lupus nephritis patients in complete remission and 12 systemic lupus erythematosus patients without lupus nephritis). Urine samples were collected before initiating treatment. U-Pod was determined by counting podocalyxin-positive cells, and U-PCX was measured by sandwich ELISA, normalized to urinary creatinine levels (U-Pod/Cr, U-PCX/Cr). Results Lupus nephritis patients showed significantly higher U-Pod/Cr and U-PCX/Cr compared with patients without lupus nephritis. U-Pod/Cr was high in proliferative lupus nephritis (class III±V/IV±V), especially in pure class IV (4.57 (2.02-16.75)), but low in pure class V (0.30 (0.00-0.71)). U-Pod/Cr showed a positive correlation with activity index ( r=0.50, P=0.0012) and was independently associated with cellular crescent formation. In contrast, U-PCX/Cr was high in both proliferative and membranous lupus nephritis. Receiver operating characteristic analysis revealed significant correlation of U-Pod/Cr with pure class IV, class IV±V and cellular crescent formation, and the combined values of U-Pod/Cr and U-PCX/Cr were shown to be associated with pure class V. Conclusions U-Pod/Cr and U-PCX/Cr correlate with histological features of lupus nephritis.
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Affiliation(s)
- D Ikuma
- 1 Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
| | - K Hiromura
- 2 Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - H Kajiyama
- 1 Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
| | - J Suwa
- 2 Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - H Ikeuchi
- 2 Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - T Sakairi
- 2 Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Y Kaneko
- 2 Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - A Maeshima
- 2 Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - H Kurosawa
- 3 Diagnostics Research Department, Denka Innovation Center, Tokyo, Japan
| | - Y Hirayama
- 3 Diagnostics Research Department, Denka Innovation Center, Tokyo, Japan
| | - K Yokota
- 1 Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
| | - Y Araki
- 1 Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
| | - K Sato
- 1 Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
| | - Y F Asanuma
- 1 Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
| | - Y Akiyama
- 1 Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan.,4 Department of Rheumatology, Japanese Red Cross Ogawa Hospital, Saitama, Japan
| | - M Hara
- 5 Department of Pediatrics, Yoshida Hospital, Niigata, Japan
| | - Y Nojima
- 6 Department of Nephrology, Japanese Red Cross Maebashi Hospital, Gunma, Japan
| | - T Mimura
- 1 Department of Rheumatology and Applied Immunology, Saitama Medical University, Saitama, Japan
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Nojima K, Namiki T, Funazumi M, Ishikawa M, Kaneko Y, Tanemura A, Katamaya I, Mori T, Yamazaki N, Yokozeki H, Hearing V. 606 NUAK2 over expressed and DNA copy number increased in acral melanoma: Its significance on the survival of patients. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.803] [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: 11/24/2022]
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56
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Kiguchi T, Sato C, Takai K, Nakai Y, Kaneko Y, Matsuki M. CT findings in 11 patients with TAFRO syndrome: a variant of multicentric Castleman's disease. Clin Radiol 2017. [DOI: 10.1016/j.crad.2017.05.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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57
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Aihara Y, Ikeda S, Kaneko Y, Aihara Y, Tanaka M. The role of the medical center for dementia in the community. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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58
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Nakajima T, Ono Y, Kaneko Y, Saito A, Imai M, Iizuka T, Irie T, Funada R, Takama N, Kasama S, Nakamura K, Niwamae N, Tange S, Kurabayashi M. P799The clinical and genetic predispositions to ventricular tachyarrhythmias associated with vasospastic angina. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p799] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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59
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Mala J, Puthong S, Maekawa H, Kaneko Y, Palaga T, Komolpis K, Sooksai S. Construction and sequencing analysis of scFv antibody fragment derived from monoclonal antibody against norfloxacin (Nor155). J Genet Eng Biotechnol 2017; 15:69-76. [PMID: 30647643 PMCID: PMC6296615 DOI: 10.1016/j.jgeb.2017.02.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 02/19/2017] [Indexed: 11/20/2022]
Abstract
Norfloxacin belongs to the group of fluoroquinolone antibiotics which has been approved for treatment in animals. However, its residues in animal products can pose adverse side effects to consumer. Therefore, detection of the residue in different food matrices must be concerned. In this study, a single chain variable fragment (scFv) that recognizes norfloxacin antibiotic was constructed. The cDNA was synthesized from total RNA of hybridoma cells against norfloxacin. Genes encoding VH and VL regions of monoclonal antibody against norfloxacin (Nor155) were amplified and size of VH and VL fragments was 402 bp and 363 bp, respectively. The scFv of Nor155 was constructed by an addition of (Gly4Ser)3 as a linker between VH and VL regions and subcloned into pPICZαA, an expression vector of Pichia pastoris. The sequence of scFv Nor155 (GenBank No. AJG06891.1) was confirmed by sequencing analysis. The complementarity determining regions (CDR) I, II, and III of VH and VL were specified by Kabat method. The obtained recombinant plasmid will be useful for production of scFv antibody against norfloxacin in P. pastoris and further engineer scFv antibody against fluoroquinolone antibiotics.
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Affiliation(s)
- J. Mala
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - S. Puthong
- The Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - H. Maekawa
- Yeast Genetic Resources Laboratory, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - Y. Kaneko
- Yeast Genetic Resources Laboratory, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
| | - T. Palaga
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - K. Komolpis
- The Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - S. Sooksai
- The Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok 10330, Thailand
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Sakairi T, Hiromura K, Hamatani H, Nakasatomi M, Ikeuchi H, Kaneko Y, Maeshima A, Nojima Y. MP027ABSENCE OF ANDROGEN RECEPTOR SIGNALING MAY PROMOTE KIDNEY FIBROSIS AND ACUTE KIDNEY INJURY. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx161.mp027] [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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61
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Minamiyama R, Asai J, Kaneko Y, Kanehisa F, Cho Z, Takenaka H, Katoh N. Necrotizing Sweet syndrome in a patient with myelodysplastic syndrome. Clin Exp Dermatol 2017; 42:436-438. [PMID: 28422309 DOI: 10.1111/ced.13088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2016] [Indexed: 11/28/2022]
Affiliation(s)
- R Minamiyama
- Department of Dermatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - J Asai
- Department of Dermatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Y Kaneko
- Department of Dermatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - F Kanehisa
- Department of Dermatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Z Cho
- Department of Dermatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - H Takenaka
- Department of Dermatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - N Katoh
- Department of Dermatology, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
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Tsunoda H, Raichev EG, Newman C, Masuda R, Georgiev DM, Kaneko Y. Food niche segregation between sympatric golden jackals and red foxes in central Bulgaria. J Zool (1987) 2017. [DOI: 10.1111/jzo.12464] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- H. Tsunoda
- Center for Environmental Science in Saitama; Kazo-shi Saitama Japan
| | - E. G. Raichev
- Department of Agricultural Science; Trakia University; Stara Zagora Bulgaria
| | - C. Newman
- Wildlife Conservation Research Unit; Department of Zoology; The Recanati-Kaplan Centre; University of Oxford; Tubney UK
| | - R. Masuda
- Department of Biological Sciences; Faculty of Science; Hokkaido University; Sapporo Japan
| | - D. M. Georgiev
- Department of Agricultural Science; Trakia University; Stara Zagora Bulgaria
| | - Y. Kaneko
- Carnivore Ecology and Conservation Research Group; Faculty of Agriculture; Tokyo University of Agriculture and Technology; Fuchu-shi Tokyo Japan
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Aomori T, Tsuchiya A, Suzuki S, Jibiki A, Otsuka N, Ishioka E, Kaneko Y, Takeuchi T, Nakamura T. Suppression of infliximab antibody levels by azathioprine in patients with rheumatoid arthritis. Pharmazie 2017; 72:95-97. [PMID: 29441860 DOI: 10.1691/ph.2017.6791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In rheumatoid arthritis (RA) treatment, the concomitant use of methotrexate has been shown to reduce the incidence of antibodies to infliximab (ATI), on the other hand, it is unclear whether azathioprine can reduce ATI production. We enrolled a total of 10 Japanese adult patients with RA who were treated with infliximab concomitantly with methotrexate or azathioprine. Serum concentrations of infliximab and ATI of these patients were measured. The mean serum infliximab concentrations was 1.6±1.3 μg/ml in patients with methotrexate and 1.0±0.5 μg/ml in patients with azathioprine. Serum ATI concentrations were below the limit of quantitation in 4 of 5 patients in each group. The results from the present study suggest that azathioprine suppresses ATI production.
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Kadiombo AT, Maeshima A, Kayakabe K, Ikeuchi H, Sakairi T, Kaneko Y, Hiromura K, Nojima Y. Involvement of infiltrating macrophage-derived activin A in the progression of renal damage in MRL-lpr mice. Am J Physiol Renal Physiol 2017; 312:F297-F304. [DOI: 10.1152/ajprenal.00191.2016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 11/15/2016] [Accepted: 11/20/2016] [Indexed: 01/12/2023] Open
Abstract
Lupus nephritis is a life-threatening complication of systemic lupus erythematosus (SLE). Various growth factors, cytokines, and chemokines are implicated in the development of SLE. However, the pathophysiological processes involved in the development of lupus nephritis still remain unclear. In this study, we examined the involvement of activin A, a member of the transforming growth factor β (TGF-β) superfamily, in the progression of renal damage in lupus-prone MRL- lpr mice. Activin A was not expressed in the kidneys of control MRL-MpJ mice but was detectable in perivascular infiltrating cluster of differentiation 68 (CD68)-positive cells in the kidneys of MRL- lpr mice. Urinary activin A, which was also absent in MRL-MpJ mice, was detectable in MRL- lpr mice from 16 wk onward. Urinary activin A levels were significantly correlated with the number of perivascular inflammatory cell layers, the number of crescentic glomeruli, and the percentage of Elastica van Gieson (EVG)-positive fibrotic areas, but not with urinary protein levels or serum activin A. When activin action was blocked in vivo by the intraperitoneal administration of an activin antagonist, follistatin, the number of crescentic glomeruli, percentage of EVG-positive fibrotic areas, CD68-positive cell infiltration, and proteinuria were significantly reduced in a dose-dependent manner. These data suggest that infiltrating macrophage-derived activin A is involved in the progression of renal damage in MRL- lpr mice.
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Affiliation(s)
| | - Akito Maeshima
- Department of Medicine and Clinical Science, Gunma University, Graduate School of Medicine, Maebashi, Japan
| | - Ken Kayakabe
- Department of Medicine and Clinical Science, Gunma University, Graduate School of Medicine, Maebashi, Japan
| | - Hidekazu Ikeuchi
- Department of Medicine and Clinical Science, Gunma University, Graduate School of Medicine, Maebashi, Japan
| | - Toru Sakairi
- Department of Medicine and Clinical Science, Gunma University, Graduate School of Medicine, Maebashi, Japan
| | - Yoriaki Kaneko
- Department of Medicine and Clinical Science, Gunma University, Graduate School of Medicine, Maebashi, Japan
| | - Keiju Hiromura
- Department of Medicine and Clinical Science, Gunma University, Graduate School of Medicine, Maebashi, Japan
| | - Yoshihisa Nojima
- Department of Medicine and Clinical Science, Gunma University, Graduate School of Medicine, Maebashi, Japan
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Shitara K, Kuwabara A, Fisher CAJ, Ogawa T, Asano T, Kaneko Y, Omote A, Moriwake H. Effect of oxygen vacancy segregation in Au or Pt/oxide hetero-interfaces on electronic structures. RSC Adv 2017. [DOI: 10.1039/c7ra04804a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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] Open
Abstract
We investigated the effects of oxygen vacancy segregation on electronic structures in the vicinity of hetero-interfaces between noble metals (Au and Pt) and yttria stabilized zirconia by performing first-principles calculations and Bader analysis.
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Affiliation(s)
- K. Shitara
- Nanostructures Research Laboratory
- Japan Fine Ceramics Center
- Nagoya
- Japan
- Research and Services Division of Materials Data and Integrated System
| | - A. Kuwabara
- Nanostructures Research Laboratory
- Japan Fine Ceramics Center
- Nagoya
- Japan
- Research and Services Division of Materials Data and Integrated System
| | - C. A. J. Fisher
- Nanostructures Research Laboratory
- Japan Fine Ceramics Center
- Nagoya
- Japan
| | - T. Ogawa
- Nanostructures Research Laboratory
- Japan Fine Ceramics Center
- Nagoya
- Japan
| | - T. Asano
- Advanced Research Division
- Panasonic Corporation
- Kyoto
- Japan
| | - Y. Kaneko
- Advanced Research Division
- Panasonic Corporation
- Kyoto
- Japan
| | - A. Omote
- Advanced Research Division
- Panasonic Corporation
- Kyoto
- Japan
| | - H. Moriwake
- Nanostructures Research Laboratory
- Japan Fine Ceramics Center
- Nagoya
- Japan
- Research and Services Division of Materials Data and Integrated System
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Abstract
Protic ionic liquids containing cyclic oligosiloxane frameworks, which were prepared by the hydrolytic condensation method, exhibited relatively high thermal stabilities.
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Affiliation(s)
- T. Hirohara
- Graduate School of Science and Engineering
- Kagoshima University
- Kagoshima 890-0065
- Japan
| | - T. Kai
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - J. Ohshita
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Y. Kaneko
- Graduate School of Science and Engineering
- Kagoshima University
- Kagoshima 890-0065
- Japan
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Abstract
Objectives The selectivity index has been proposed in predicting the response to immunosuppressive therapy in nephrotic syndrome and other primary kidney disorders. The aim of this study was to elucidate the predictive value of the selectivity index for the treatment response and renal outcome in patients with lupus nephritis. Methods Forty-four patients with lupus nephritis with selectivity index available at the time of renal biopsy were divided into two groups according to the cut-off value of the selectivity index determined by a receiver operating characteristics curve to differentiate treatment responders from non-responders. The baseline characteristics, overall response rate and renal functional outcome were studied retrospectively, and compared between the two groups. Prognostic factors for achieving remission were identified. Results The cut-off value of the selectivity index was 0.167. The low selectivity index (<0.167) and the high selectivity index (≥0.167) group included 24 and 20 patients, respectively. The overall response rate was significantly higher (88% vs. 50%, P = 0.007) and the rate of progression to end-stage renal disease was lower in the low selectivity index group (0% vs. 15%, P = 0.049). More patients in the high selectivity index group had chronic lesions on renal biopsy ( P = 0.002). The selectivity index was the prognostic factor for achieving overall response based on a multivariate analysis ( P = 0.020). Conclusions A selectivity index ≥0.167 was a strong predictor for a poor treatment response and the presence of chronic lesions on renal biopsy. Further exploration with a larger cohort and longer follow-up period is warranted.
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Affiliation(s)
- T Hasegawa
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - K Suzuki
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Y Kaneko
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - T Takeuchi
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
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Kaneko Y, Onda N, Watanabe Y, Shibutani M. Identification of 5-hydroxytryptamine-producing cells by detection of fluorescence in paraffin-embedded tissue sections. Eur J Histochem 2016; 60:2684. [PMID: 27734992 PMCID: PMC5062634 DOI: 10.4081/ejh.2016.2684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 08/09/2016] [Accepted: 08/18/2016] [Indexed: 01/25/2023] Open
Abstract
5-Hydroxytryptamine (5-HT) produced by enterochromaffin (EC) cells is an important enteric mucosal signaling ligand and has been implicated in several gastrointestinal diseases, including inflammatory bowel disease and functional disorders such as irritable bowel syndrome. The present study reports a new, simple and rapid visualization method of 5-HT-producing EC cells utilizing detection of fluorescence in paraffin-embedded tissue sections after formalin fixation. In human samples, there was a high incidence of fluorescence+ cells in the 5-HT+ cells in the pyloric, small intestinal and colonic glands, while co-localization was lacking between fluorescence+ and gastrin+ cells in the pyloric and small intestinal glands. Fluorescence+ EC cells were detected in the colon of mice and rats. Fluorescence+ cells were also observed in 5-HT+ β cells in the pancreatic islets of Langerhans in pregnant mice, while non-pregnant mouse pancreatic islet cells showed no 5-HT immunoreactivity or fluorescence. These results suggest that fluorescence+ cells are identical to 5-HT+ cells, and the source of fluorescence may be 5-HT itself or molecules related to its synthesis or degradation. This fluorescence signal detection method may be applicable for monitoring of inflammatory status of inflammatory bowel diseases in both the experimental and clinical settings.
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Nishita Y, Abramov AV, Kosintsev PA, Lin LK, Watanabe S, Yamazaki K, Kaneko Y, Masuda R. Genetic variation of the MHC class II DRB genes in the Japanese weasel, Mustela itatsi, endemic to Japan, compared with the Siberian weasel, Mustela sibirica. ACTA ACUST UNITED AC 2016; 86:431-42. [PMID: 26593752 DOI: 10.1111/tan.12700] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 10/07/2015] [Accepted: 10/21/2015] [Indexed: 01/19/2023]
Abstract
Major histocompatibility complex (MHC) genes encode proteins that play a critical role in vertebrate immune system and are highly polymorphic. To further understand the molecular evolution of the MHC genes, we compared MHC class II DRB genes between the Japanese weasel (Mustela itatsi), a species endemic to Japan, and the Siberian weasel (Mustela sibirica), a closely related species on the continent. We sequenced a 242-bp region of DRB exon 2, which encodes antigen-binding sites (ABS), and found 24 alleles from 31 M. itatsi individuals and 17 alleles from 21 M. sibirica individuals, including broadly distributed, species-specific and/or geographically restricted alleles. Our results suggest that pathogen-driven balancing selection have acted to maintain the diversity in the DRB genes. For predicted ABS, nonsynonymous substitutions exceeded synonymous substitutions, also indicating positive selection, which was not seen at non-ABS. In a Bayesian phylogenetic tree, two M. sibirica DRB alleles were basal to the rest of the sequences from mustelid species and may represent ancestral alleles. Trans-species polymorphism was evident between many mustelid DRB alleles, especially between M. itatsi and M. sibirica. These two Mustela species divided about 1.7 million years ago, but still share many MHC alleles, indicative of their close phylogenetic relationship.
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Affiliation(s)
- Y Nishita
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - A V Abramov
- Zoological Institute, Russian Academy of Sciences, Moscow, Russia
| | - P A Kosintsev
- Institute of Plant & Animal Ecology, Russian Academy of Sciences, Moscow, Russia
| | - L-K Lin
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - S Watanabe
- Seian University of Art and Design, Otsu, Japan
| | - K Yamazaki
- Forest Ecology Laboratory, Department of Forest Science, Faculty of Regional Environmental Science, Tokyo University of Agriculture, Fuchu, Japan
| | - Y Kaneko
- Department of Ecoregion Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - R Masuda
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
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Izumi K, Murata O, Ushikubo M, Ito H, Akiya K, Kaneko Y, Oshima H, Takeuchi T. THU0575 Tocilizumab Is Significantly Steroid-Sparing Compared with Methotrexate in Polymyalgia Rheumatica: A Multicenter Retrospective Study (NTMC-KEIO PMR Study). Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.1753] [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: 11/04/2022]
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71
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Akiyama M, Yasuoka H, Yamaoka K, Suzuki K, Kaneko Y, Kondo H, Kassai Y, Koga K, Miyazaki T, Morita R, Yoshimura A, Takeuchi T. THU0007 Enhanced IGG4 Production by Follicular Helper Type 2 T Cells in IGG4-Related Disease. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2444] [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: 11/04/2022]
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72
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Kaneko Y, Kondo H, Ohta M, Takeuchi T. FRI0104 Long-Term Followup of Biologic Agents in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3339] [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: 11/04/2022]
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73
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Sakata K, Kaneko Y, Yasuoka H, Yamaoka K, Takeuchi T. AB0609 Radiographic Findings in Hand x-Ray in Patients with Systemic Sclerosis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4557] [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: 11/03/2022]
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74
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Nakazawa M, Kaneko Y, Takeuchi T. FRI0292 Risk Factors for Recurrence of Polymyositis/dermatomyositis Associated Interstitial Lung Disease. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3081] [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: 11/04/2022]
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75
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Min C, Yoshida K, Haji Y, Inoue H, Kaneko Y, Kawasaki T, Matsui K, Morita M, Tada K, Takizawa N, Tamura N, Ichikawa N, Taniguchi Y, Tsuji S, Okada M, Kobayashi S, Tomita T, Kishimoto M. THU0390 Clinical Characteristics of Spondyloarthritis in Japanese Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.1906] [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: 11/04/2022]
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76
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Sakairi T, Hiromura K, Sakurai N, Hamatani H, Ikeuchi H, Kaneko Y, Maeshima A, Nojima Y. SAT0337 Hypertrophic Pachymeningitis Associated with ANCA Vasculitis; A Case Series of 16 Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.1544] [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: 11/04/2022]
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77
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Ota Y, Kaneko Y, Takeuchi T. THU0590 Risk Factors for Cytomegalovirus Reactivation in Patients with Connective-Tissue Diseases. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3333] [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: 11/03/2022]
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78
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Sasaki T, Kaneko Y, Akiyama M, Mori T, Yasuoka H, Suzuki K, Yamaoka K, Okamoto S, Takeuchi T. THU0585 Distinct Clinical Features Distinguishing IGG4-Related Disease and Multicentric Castlesman's Disease. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2861] [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: 11/03/2022]
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79
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Sakairi T, Hiromura K, Kaneko Y, Maeshima A, Hirato J, Nojima Y. Histological findings in the spleen affected by adult-onset Still's disease: a report of three cases. Clin Exp Rheumatol 2016; 34:566-567. [PMID: 26841850] [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] [Received: 08/20/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Affiliation(s)
- Toru Sakairi
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan.
| | - Keiju Hiromura
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Yoriaki Kaneko
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Akito Maeshima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Junko Hirato
- Department of Pathology, Gunma University Hospital, Gunma, Japan
| | - Yoshihisa Nojima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
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80
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Ikeuchi H, Hiromura K, Kayakabe K, Tshilela KA, Uchiyama K, Hamatani H, Sakairi T, Kaneko Y, Maeshima A, Nojima Y. Renal outcomes in mixed proliferative and membranous lupus nephritis (Class III/IV + V): A long-term observational study. Mod Rheumatol 2016; 26:908-913. [DOI: 10.3109/14397595.2016.1158896] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Hidekazu Ikeuchi
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Keiju Hiromura
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Ken Kayakabe
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | | | - Kazuhiko Uchiyama
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Hiroko Hamatani
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Toru Sakairi
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Yoriaki Kaneko
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Akito Maeshima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Yoshihisa Nojima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, Gunma, Japan
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81
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Seki S, Ideue T, Kubota M, Kozuka Y, Takagi R, Nakamura M, Kaneko Y, Kawasaki M, Tokura Y. Thermal Generation of Spin Current in an Antiferromagnet. Phys Rev Lett 2015; 115:266601. [PMID: 26765011 DOI: 10.1103/physrevlett.115.266601] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Indexed: 05/22/2023]
Abstract
The longitudinal spin Seebeck effect has been investigated for a uniaxial antiferromagnetic insulator Cr(2)O(3), characterized by a spin-flop transition under magnetic field along the c axis. We have found that a temperature gradient applied normal to the Cr(2)O(3)/Pt interface induces inverse spin Hall voltage of spin-current origin in Pt, whose magnitude turns out to be always proportional to magnetization in Cr(2)O(3). The possible contribution of the anomalous Nernst effect is confirmed to be negligibly small. The above results establish that an antiferromagnetic spin wave can be an effective carrier of spin current.
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Affiliation(s)
- S Seki
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- PRESTO, Japan Science and Technology Agency (JST), Tokyo 102-8666, Japan
| | - T Ideue
- Department of Applied Physics and Quantum Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - M Kubota
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Research and Development Headquarters, ROHM Co., Ltd., Kyoto 615-8585, Japan
| | - Y Kozuka
- Department of Applied Physics and Quantum Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - R Takagi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - M Nakamura
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - Y Kaneko
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - M Kawasaki
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Applied Physics and Quantum Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - Y Tokura
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Applied Physics and Quantum Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
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82
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Atapaththu KSS, Miyagi A, Atsuzawa K, Kaneko Y, Kawai-Yamada M, Asaeda T. Effects of water turbulence on variations in cell ultrastructure and metabolism of amino acids in the submersed macrophyte, Elodea nuttallii (Planch.) H. St. John. Plant Biol (Stuttg) 2015; 17:997-1004. [PMID: 25959623 DOI: 10.1111/plb.12346] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 05/06/2015] [Indexed: 06/04/2023]
Abstract
The interactions between macrophytes and water movement are not yet fully understood, and the causes responsible for the metabolic and ultrastructural variations in plant cells as a consequence of turbulence are largely unknown. In the present study, growth, metabolism and ultrastructural changes were evaluated in the aquatic macrophyte Elodea nuttallii, after exposure to turbulence for 30 days. The turbulence was generated with a vertically oscillating horizontal grid. The turbulence reduced plant growth, plasmolysed leaf cells and strengthened cell walls, and plants exposed to turbulence accumulated starch granules in stem chloroplasts. The size of the starch granules increased with the magnitude of the turbulence. Using capillary electrophoresis-mass spectrometry (CE-MS), analysis of the metabolome found metabolite accumulation in response to the turbulence. Asparagine was the dominant amino acid that was concentrated in stressed plants, and organic acids such as citrate, ascorbate, oxalate and γ-amino butyric acid (GABA) also accumulated in response to turbulence. These results indicate that turbulence caused severe stress that affected plant growth, cell ultrastructure and some metabolic functions of E. nuttallii. Our findings offer insights to explain the effects of water movement on the functions of aquatic plants.
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Affiliation(s)
- K S S Atapaththu
- Department of Environmental Science and Technology, Saitama University, Sakura-Ku, Saitama, Japan
| | - A Miyagi
- Department of Environmental Science and Technology, Saitama University, Sakura-Ku, Saitama, Japan
| | - K Atsuzawa
- Comprehensive Analysis Center for Science, Saitama University, Sakura-Ku, Saitama, Japan
| | - Y Kaneko
- Biology Section in the Faculty of Education, Graduate School of Science and Engineering, Saitama University, Sakura-Ku, Saitama, Japan
| | - M Kawai-Yamada
- Department of Environmental Science and Technology, Saitama University, Sakura-Ku, Saitama, Japan
| | - T Asaeda
- Department of Environmental Science and Technology, Saitama University, Sakura-Ku, Saitama, Japan
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83
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Hanaoka H, Kaneko Y, Suzuki S, Takada T, Hirakata M, Takeuchi T, Kuwana M. Anti-signal recognition particle antibody in patients without inflammatory myopathy: a survey of 6180 patients with connective tissue diseases. Scand J Rheumatol 2015; 45:36-40. [PMID: 26312949 DOI: 10.3109/03009742.2015.1054876] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To clarify the prevalence of anti-signal recognition particle (anti-SRP) antibody in connective tissue diseases (CTDs) and investigate the clinical characteristics of patients without inflammatory myopathy. METHOD Sera from 6180 patients with CTD were examined by immunoprecipitation (IPP) assays, and the records of patients positive for anti-SRP antibody were reviewed retrospectively. The antibody against the 54-kDa protein of SRP (SRP54) was quantified by enzyme-linked immunosorbent assay (ELISA) in patients with anti-SRP antibody. RESULTS Of the 28 patients positive for anti-SRP antibody, nine (32.1%) did not have inflammatory myopathy. The clinical diagnoses and characteristics of those patients varied considerably. In patients with inflammatory myopathy, the index of anti-SRP54 was much higher than in those without myopathy (1.15 vs. 0.46; p = 0.036). CONCLUSIONS The prevalence of anti-SRP antibody was 0.5% in a cohort of Japanese patients with CTD, and one-third of them did not have inflammatory myopathy. Sera from patients with inflammatory myopathy recognized SRP54 more strongly than in those without myopathy.
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Affiliation(s)
- H Hanaoka
- a Division of Rheumatology, Department of Internal Medicine , Keio University School of Medicine , Tokyo , Japan
| | - Y Kaneko
- a Division of Rheumatology, Department of Internal Medicine , Keio University School of Medicine , Tokyo , Japan
| | - S Suzuki
- b Department of Neurology , Keio University School of Medicine , Tokyo , Japan
| | - T Takada
- a Division of Rheumatology, Department of Internal Medicine , Keio University School of Medicine , Tokyo , Japan
| | - M Hirakata
- a Division of Rheumatology, Department of Internal Medicine , Keio University School of Medicine , Tokyo , Japan
| | - T Takeuchi
- a Division of Rheumatology, Department of Internal Medicine , Keio University School of Medicine , Tokyo , Japan
| | - M Kuwana
- a Division of Rheumatology, Department of Internal Medicine , Keio University School of Medicine , Tokyo , Japan.,c Department of Allergy and Rheumatology , Nippon Medical School Graduate School of Medicine , Tokyo , Japan
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Fujioka J, Doi A, Okuyama D, Morikawa D, Arima T, Okada KN, Kaneko Y, Fukuda T, Uchiyama H, Ishikawa D, Baron AQR, Kato K, Takata M, Tokura Y. Ferroelectric-like metallic state in electron doped BaTiO3. Sci Rep 2015; 5:13207. [PMID: 26289749 PMCID: PMC4542543 DOI: 10.1038/srep13207] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 07/16/2015] [Indexed: 12/05/2022] Open
Abstract
We report that a ferroelectric-like metallic state with reduced anisotropy of polarization is created by the doping of conduction electrons into BaTiO3, on the bases of x-ray/electron diffraction and infrared spectroscopic experiments. The crystal structure is heterogeneous in nanometer-scale, as enabled by the reduced polarization anisotropy. The enhanced infrared intensity of soft phonon along with the resistivity reduction suggests the presence of unusual electron-phonon coupling, which may be responsible for the emergent ferroelectric structure compatible with metallic state.
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Affiliation(s)
- J. Fujioka
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
| | - A. Doi
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
| | - D. Okuyama
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - D. Morikawa
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - T. Arima
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 227-8561 Japan
| | - K. N. Okada
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
| | - Y. Kaneko
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - T. Fukuda
- Syncrotron Radiation Research Unit, JAEA/SPring-8, Sayo, Hyogo 679-5148, Japan
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - H. Uchiyama
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Research and Utilization Division, JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan
| | - D. Ishikawa
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Research and Utilization Division, JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan
| | - A. Q. R. Baron
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Research and Utilization Division, JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan
| | - K. Kato
- Structural Materials Science Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - M. Takata
- Structural Materials Science Laboratory, RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Y. Tokura
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
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Nakasatomi M, Maeshima A, Mishima K, Ikeuchi H, Sakairi T, Kaneko Y, Hiromura K, Nojima Y. Novel approach for the detection of tubular cell migration into the interstitium during renal fibrosis in rats. Fibrogenesis Tissue Repair 2015; 8:12. [PMID: 26161140 PMCID: PMC4496823 DOI: 10.1186/s13069-015-0030-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 06/30/2015] [Indexed: 01/10/2023]
Abstract
Background The process of epithelial-mesenchymal transition (EMT), which is generally defined by phenotypic changes of injured tubules such as loss of epithelial markers or acquisition of mesenchymal markers, implies various activating steps, including proliferation, migration, and ability to produce extracellular matrix proteins. We established here a novel approach for the detection of tubular cell migration into the interstitium during renal fibrosis in vivo. Results Using an osmotic pump, bromodeoxyuridine (BrdU) was continuously given to 7-week-old Wistar rats for 4 weeks, and BrdU-positive cells were detected by immunostaining. BrdU-positive cells were present in aquaporin-1-positive proximal tubules, but not in the interstitium of BrdU-treated rat kidneys. After unilateral ureteral obstruction (UUO), some BrdU-positive tubular cells protruded from the basement membrane and migrated into the interstitium. Interstitial BrdU-positive cells were co-localized with alpha-smooth muscle actin, fibroblast specific protein-1, vimentin, and type I collagen, but not with CD68 or CD3. No BrdU-positive cells were observed in the interstitium of sham-operated kidneys. The number of BrdU-positive cells migrating into the interstitium significantly increased and peaked at 8 days after UUO. Conclusions Long-term BrdU labeling marked some of the proximal tubular cells and enabled us to detect tubular cell migration into the interstitium after UUO. This simple method might be useful to detect EMT in vivo.
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Affiliation(s)
- Masao Nakasatomi
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-15 Showa, Maebashi, 371-8511 Japan
| | - Akito Maeshima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-15 Showa, Maebashi, 371-8511 Japan
| | - Keiichiro Mishima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-15 Showa, Maebashi, 371-8511 Japan
| | - Hidekazu Ikeuchi
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-15 Showa, Maebashi, 371-8511 Japan
| | - Toru Sakairi
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-15 Showa, Maebashi, 371-8511 Japan
| | - Yoriaki Kaneko
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-15 Showa, Maebashi, 371-8511 Japan
| | - Keiju Hiromura
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-15 Showa, Maebashi, 371-8511 Japan
| | - Yoshihisa Nojima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-15 Showa, Maebashi, 371-8511 Japan
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Yatagai Y, Sakamoto T, Yamada H, Masuko H, Kaneko Y, Iijima H, Naito T, Noguchi E, Hirota T, Tamari M, Konno S, Nishimura M, Hizawa N. Genomewide association study identifies HAS2 as a novel susceptibility gene for adult asthma in a Japanese population. Clin Exp Allergy 2015; 44:1327-34. [PMID: 25251750 DOI: 10.1111/cea.12415] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 07/16/2014] [Accepted: 07/21/2014] [Indexed: 01/16/2023]
Abstract
BACKGROUND It is increasingly clear that asthma is not a single disease, but a disorder with vast heterogeneity in pathogenesis, severity, and treatment response. To date, 30 genomewide association studies (GWASs) of asthma have been performed, including by our group. However, most gene variants identified so far confer relatively small increments in risk and explain only a small proportion of familial clustering. OBJECTIVE To identify additional genetic determinants of susceptibility to asthma using a selected Japanese population with reduced tobacco smoking exposure. METHODS We performed a GWAS by genotyping a total of 480 098 single-nucleotide polymorphisms (SNPs) for a Japanese cohort consisting of 734 healthy controls and 240 patients with asthma who had smoked for no more than 10 pack-years. The SNP with the strongest association was genotyped in two other independent Japanese cohorts consisting of a total of 531 healthy controls and 418 patients with asthma who had smoked for no more than 10 pack-years. For the hyaluronan synthase 2 (HAS2) gene, we investigated SNP-gene associations using an expression quantitative trait loci (eQTL) database and also analysed its gene expression profiles in 13 different normal tissues. RESULTS In the discovery GWAS, a SNP located upstream of HAS2, rs7846389, showed the strongest statistical significance (P = 1.43 × 10(-7) ). In the two independent replication cohorts, rs7846389 was consistently associated with asthma (nominal P = 0.0152 and 0.0478 in the first and second replication cohorts, respectively). In the meta-analysis, association of rs7846389 with susceptibility to asthma reached the level of genomewide significance (P = 7.92 × 10(-9) ). This variant was strongly correlated with HAS2 mRNA expression. The strongest expression of the gene was detected in the lung. CONCLUSIONS Our study identified HAS2 as a novel candidate gene for susceptibility to adult asthma.
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Affiliation(s)
- Y Yatagai
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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El-Sheikh Ali H, Kitahara G, Torisu S, Nibe K, Kaneko Y, Hidaka Y, Osawa T. Evidence of Spontaneous Recovery of Granulosa-Theca Cell Tumour in a Heifer: A Retrospective Report. Reprod Domest Anim 2015; 50:696-703. [PMID: 26095590 DOI: 10.1111/rda.12555] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/17/2015] [Indexed: 11/28/2022]
Abstract
A 14-month-old Japanese Black heifer was evaluated on Day 0 (D 0) for enlargement of the right ovary (RO). Transrectal ultrasonography (TRUS) revealed that the RO was markedly enlarged and multicystic, while the left ovary (LO) was small and inactive. The presumptive diagnosis was granulosa-theca cell tumour (GTCT), which was confirmed by markedly elevated plasma anti-Müllerian hormone (AMH) of 4.42 ng/ml. Therefore, ovariectomy of the RO was the treatment of choice. The heifer was checked by TRUS and blood sampling on D 42, D 63 and immediately before ovariectomy on D 85. On D 42, TRUS did not show marked changes in either ovary in comparison with D 0. However, on D 63, the RO had transformed into a single cyst, and on D 85, the LO had resumed cyclic activity. The RO was extracted on D 85 by hand-assisted laparoscopic ovariectomy to allow better control. Unexpectedly, histopathology revealed the lesion to be a fluid-filled cystic structure, with no neoplastic proliferation of follicular epithelium that would indicate GTCT. The wall of the cystic structure consisted of collagen fibres and a few degenerated granulosa cells. The retrospective hormonal analysis revealed that the AMH concentrations had markedly dropped on D 63 and 85, which coincided with resumption of cyclicity in the LO. These findings suggest that the GTCT had self-cured and transformed into a cyst-like structure. The heifer then received an oestrous synchronization regime on D 105, was artificially inseminated on D 115 and became pregnant.
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Affiliation(s)
- H El-Sheikh Ali
- Laboratory of Theriogenology, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.,Department of Theriogenology, Faculty of Veterinary Medicine, University of Mansoura, Mansoura, Egypt
| | - G Kitahara
- Laboratory of Theriogenology, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - S Torisu
- Veterinary Teaching Hospital, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - K Nibe
- Japan Animal Referral Medical Center, Takatsu-ku, Kawasaki, Japan
| | - Y Kaneko
- Veterinary Teaching Hospital, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Y Hidaka
- Laboratory of Veterinary Surgery, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - T Osawa
- Laboratory of Theriogenology, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
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88
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Hisano M, Raichev E, Peeva S, Tsunoda H, Newman C, Masuda R, Georgiev D, Kaneko Y. Comparing the summer diet of stone martens (Martes foina) in urban and natural habitats in Central Bulgaria. ETHOL ECOL EVOL 2015. [DOI: 10.1080/03949370.2015.1048829] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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89
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Murota A, Kaneko Y, Yamaoka K, Takeuchi T. FRI0158 Safety of Biologic Agents in Elderly Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4356] [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: 11/04/2022]
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90
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Hirano F, Yokoyama W, Yamazaki H, Amano K, Kaneko Y, Kawakami A, Matsui T, Sakai R, Koike R, Miyasaka N, Harigai M. THU0085 SDAI Remission at week 24 is a Predictor of Good Functional and Structural Outcomes at week 72 in a T2T Implementing Cohort. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2103] [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: 11/03/2022]
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91
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Akiyama M, Kaneko Y, Kondo H, Yamaoka K, Takeuchi T. FRI0067 Lack of Response is Associated with Acute Exacerbation of Interstitial Lung Disease During Tocilizumab Treatment in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5548] [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: 11/04/2022]
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92
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Kurasawa T, Suzuki K, Hanaoka H, Kaneko Y, Yasuoka H, Seta N, Yamaoka K, Kameda H, Takeuchi T. AB0431 Clinical Evaluation of Treat-to-Target Strategy-Based Management Using Shortening Interval Methods for Infliximab in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4597] [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: 11/04/2022]
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93
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Kondo Y, Suzuki K, Inoue Y, Takeshita M, Morita R, Kasai Y, Miyazaki T, Niki Y, Hanaoka H, Kaneko Y, Yasuoka H, Yamaoka K, Yoshimura A, Takeuchi T. FRI0609 Ultrasonography is a Useful Modality with Ease Access Reflecting Local Molecular Pathophysiology of Inflammatory Joint in Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5414] [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: 11/04/2022]
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94
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Kurasawa T, Suzuki K, Kikuchi J, Miyoshi F, Mogami A, Kojima S, Hisada Y, Yoshimoto K, Kaneko Y, Yasuoka H, Yamaoka K, Takeuchi T. THU0384 Classification of Systemic Lupus Erythematosus Patients by Expression Pattern of Immune and Disease-Associated Genes in Peripheral Blood. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3314] [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: 11/04/2022]
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95
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Kaneko Y, Kondo H, Ohta M, Takeuchi T. SAT0095 Identifying Factors Associated with Discordance Between Erythrocyte Sedimentation Rate and C-Reactive Protein in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4352] [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: 11/03/2022]
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96
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Tanaka Y, Hirata S, Amano K, Atsumi T, Yamamoto K, Sumida T, Takeuchi T, Kohsaka H, Mimori T, Kawakami A, Nishimoto N, Tanaka E, Kaneko Y, Yasuoka H, Fukuyo S, Saito K. AB0513 Treatment Strategy Targeting Structural Remission in Patients with Early Rheumatoid Arthritis: A Multi-Central, Prospective, Comparative Study Targeting Joint Damage to Zero (Zero-J Study). Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2544] [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: 11/03/2022]
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97
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Gonzales-Portillo GS, Lozano D, Aguirre D, Reyes S, Borlongan CV, Tajiri N, Kaneko Y. An update on the use of melatonin as a stroke therapeutic. Minerva Med 2015; 106:169-175. [PMID: 25000217] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Delivery of melatonin and targeting melatonin receptors pose as neuroprotective strategies for stroke therapy. The potential of melatonin-based therapeutics for clinical application in stroke patients requires translational research to guide the conduct of clinical trials. We review recent preclinical and clinical data that support the use of melatonin for stroke.
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Affiliation(s)
- G S Gonzales-Portillo
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA -
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98
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Akiyama M, Suzuki K, Yasuoka H, Yamaoka K, Takeshita M, Kaneko Y, Kondo H, Kassai Y, Miyazaki T, Morita R, Yoshimura A, Takeuchi T. OP0115 Increased T Follicular Helper Subset 2 Related to Increased IGG4 and Plasmablasts Through IL-4 in IGG4-Related Disease. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4673] [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: 11/04/2022]
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99
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Tshilela KA, Ikeuchi H, Matsumoto T, Kuroiwa T, Sakurai N, Sakairi T, Kaneko Y, Maeshima A, Hiromura K, Nojima Y. Glomerular cytokine expression in murine lupus nephritis. Clin Exp Nephrol 2015; 20:23-9. [PMID: 25985839 DOI: 10.1007/s10157-015-1123-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 05/07/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Aberrant expression of T helper cell (Th) cytokines is believed to play a central role in the pathogenesis of systemic lupus erythematosus (SLE). While the glomerulus is one of the major targets of lupus inflammation, little is known about the cytokine expression in glomeruli. The current study aimed to explore the profiles of Th cytokine gene expressions in isolated glomeruli of lupus-prone mice. METHODS Glomeruli were purified from lupus-prone MRL/lpr mice using the magnetic microbead method. Expressions of cytokine genes representing the Th subset and FoxP3 were examined using real-time polymerase chain reaction. Serum levels of these cytokines were also measured by enzyme-linked immunosorbent assay. MRL/n mice were used as controls. Histologic glomerular damages were scored semiquantitatively. To examine the role of TNF-α in glomerular damage, we administered etanercept, a TNF-α antagonist, into the subjects. RESULTS Glomerular gene expressions of TNF-α in lpr mice increased with week postpartum and reached statistically significant levels at 16 weeks compared with those of the glomeruli from control mice. Expressions of IFN-γ, IL-4 and FoxP3 also increased, but the difference was not significant. There was a significant increase in serum levels of TNF-α, IFN-γ, and IL-17 and decrease in those of IL-4. Among the genes examined, TNF-α significantly correlated with glomerular damage score. Administration of etanercept did not affect glomerular cytokine expressions or proteinuria and failed to ameliorate histologic glomerular damages. CONCLUSION Our data suggest that Th1 cytokines, especially TNF-α, are dominantly expressed in the glomeruli of lupus-prone mice, but its pathophysiological role remains unclear.
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Affiliation(s)
- Kadiombo Anastasie Tshilela
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma, 371-8511, Japan
| | - Hidekazu Ikeuchi
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma, 371-8511, Japan.
| | - Takayuki Matsumoto
- Dialysis and Rheumatology Center, Toho Hospital, 1155 Kasagake, Midori, Gunma, 379-2311, Japan
| | - Takashi Kuroiwa
- Gunma Rheumatism Clinic, 1040 Ino, Takasaki, Gunma, 370-0004, Japan
| | - Noriyuki Sakurai
- Dialysis and Rheumatology Center, Toho Hospital, 1155 Kasagake, Midori, Gunma, 379-2311, Japan
| | - Toru Sakairi
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma, 371-8511, Japan
| | - Yoriaki Kaneko
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma, 371-8511, Japan
| | - Akito Maeshima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma, 371-8511, Japan
| | - Keiju Hiromura
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma, 371-8511, Japan
| | - Yoshihisa Nojima
- Department of Medicine and Clinical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma, 371-8511, Japan
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100
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Tsurugi T, Matsui S, Nakajima H, Nishii N, Honda T, Kaneko Y. Various mechanisms and clinical phenotypes in electrical short circuits of high-voltage devices: report of four cases and review of the literature. Europace 2015; 17:909-14. [DOI: 10.1093/europace/euv022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 01/27/2015] [Indexed: 11/13/2022] Open
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