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Tsutsui T, Fujiwara T, Matsumoto Y, Kimura A, Kanahori M, Arisumi S, Oyamada A, Ohishi M, Ikuta K, Tsuchiya K, Tayama N, Tomari S, Miyahara H, Mae T, Hara T, Saito T, Arizono T, Kaji K, Mawatari T, Fujiwara M, Takasaki M, Shin K, Ninomiya K, Nakaie K, Antoku Y, Iwamoto Y, Nakashima Y. Geriatric nutritional risk index as the prognostic factor in older patients with fragility hip fractures. Osteoporos Int 2023:10.1007/s00198-023-06753-3. [PMID: 37067545 DOI: 10.1007/s00198-023-06753-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 04/06/2023] [Indexed: 04/18/2023]
Abstract
This study investigated the long-term survival and incidence of secondary fractures after fragility hip fractures. The 5-year survival rate was 62%, and the mortality risk was seen in patients with GNRI < 92. The 5-year incidence of secondary fracture was 22%, which was significantly higher in patients with a BMI < 20. BACKGROUND Malnutrition negatively influences the postoperative survival of patients with fragility hip fractures (FHFs); however, little is known about their association over the long term. OBJECTIVE This study evaluated the ability of the geriatric nutritional risk index (GNRI) as a risk factor for long-term mortality after FHFs. METHODS This study included 623 Japanese patients with FHFs over the age of 60 years. We prospectively collected data on admission and during hospitalization and assessed the patients' conditions after discharge through a questionnaire. We examined the long-term mortality and the incidence of secondary FHFs and assessed the prognostic factors. RESULTS The mean observation period was 4.0 years (range 0-7 years). The average age at the time of admission was 82 years (range 60-101 years). The overall survival after FHFs (1 year, 91%; 5 years, 62%) and the incidence of secondary FHFs were high (1 year, 4%; 5 years, 22%). The multivariate Cox proportional hazard analysis revealed the risk factors for mortality as older age (hazard ratio [HR] 1.04), male sex (HR 1.96), lower GNRI score (HR 0.96), comorbidities (malignancy, HR 2.51; ischemic heart disease, HR 2.24; revised Hasegawa dementia scale ≤ 20, HR 1.64), no use of active vitamin D3 on admission (HR 0.46), and a lower Barthel index (BI) (on admission, HR 1.00; at discharge, HR 0.99). The GNRI scores were divided into four risk categories: major risk (GNRI, < 82), moderate risk (82-91), low risk (92-98), and no risk (> 98). Patients at major and moderate risks of GNRI had a significantly lower overall survival rate (p < 0.001). Lower body mass index (BMI) was also identified as a prognostic factor for secondary FHFs (HR 0.88 [p = 0.004]). CONCLUSIONS We showed that older age, male sex, a lower GNRI score, comorbidities, and a lower BI are risk factors for mortality following FHFs. GNRI is a novel and simple predictor of long-term survival after FHFs.
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Affiliation(s)
- T Tsutsui
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - T Fujiwara
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Y Matsumoto
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - A Kimura
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - M Kanahori
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S Arisumi
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - A Oyamada
- Department of Orthopaedic Surgery, Saga Handicapped Children's Hospital, Saga, Japan
| | - M Ohishi
- Department of Orthopaedic Surgery, Chihaya Hospital, Fukuoka, Japan
| | - K Ikuta
- Department of Orthopaedic Surgery, Karatsu Red Cross Hospital, Saga, Japan
| | - K Tsuchiya
- Department of Orthopaedic Surgery, Japan Community Healthcare Organization, Kyushu Hospital, Fukuoka, Japan
| | - N Tayama
- Department of Orthopaedic Surgery, Steel Memorial Yawata Hospital, Fukuoka, Japan
| | - S Tomari
- Department of Orthopaedic Surgery, Japanese Red Cross Fukuoka Hospital, Fukuoka, Japan
| | - H Miyahara
- Department of Orthopaedic Surgery, National Hospital Organization Kyushu Medical Centre, Fukuoka, Japan
| | - T Mae
- Department of Orthopaedic Surgery, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - T Hara
- Department of Orthopaedic Surgery, Aso Iizuka Hospital, Fukuoka, Japan
| | - T Saito
- Department of Orthopaedic Surgery, Fukuoka City Hospital, Fukuoka, Japan
| | - T Arizono
- Department of Orthopaedic Surgery, Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers, Fukuoka, Japan
| | - K Kaji
- Department of Orthopaedic Surgery, Kyushu Rosai Hospital, Fukuoka, Japan
| | - T Mawatari
- Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka, Japan
| | - M Fujiwara
- Department of Orthopaedic Surgery, Sada Hospital, Fukuoka, Japan
| | - M Takasaki
- Department of Orthopaedic Surgery, Harasanshin Hospital, Fukuoka, Japan
| | - K Shin
- Department of Orthopaedic Surgery, Saiseikai Yahata General Hospital, Fukuoka, Japan
| | - K Ninomiya
- Department of Orthopaedic Surgery, Koga Hospital 21, Fukuoka, Japan
| | - K Nakaie
- Department of Orthopaedic Surgery, National Hospital Organization Fukuoka-Higashi Medical Centre, Fukuoka, Japan
| | - Y Antoku
- Faculty of Medicine, Hospital Informatic Centre, Oita University, Oita, Japan
| | - Y Iwamoto
- Department of Orthopaedic Surgery, Kyushu Rosai Hospital, Fukuoka, Japan
| | - Y Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Inada M, Nishimura Y, Ishikura S, Ishikawa K, Murakami N, Kodaira T, Ito Y, Tsuchiya K, Murakami Y, Saitoh J, Akimoto T, Nakata K, Yoshimura M, Teshima T, Toshiyasu T, Ota Y, Minemura T, Shimizu H, Hiraoka M. The Organs-at-Risk Dose Constraints in Head and Neck Intensity Modulated Radiation Therapy Using Data from a Multi-Institutional Clinical Trial (JCOG1015A1). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1346] [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: 10/31/2022]
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Ikeda M, Yamashita T, Ogasawara S, Kudo M, Inaba Y, Morimoto M, Tsuchiya K, Shimizu S, Kojima Y, Hiraoka A, Nouso K, Aikata H, Numata K, Sato T, Okusaka T, Furuse J. 937P Multicenter phase II trial of lenvatinib plus hepatic intra-arterial infusion chemotherapy with cisplatin for advanced hepatocellular carcinoma: LEOPARD. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Prameela GKS, Phani Kumar BVN, Subramanian J, Tsuchiya K, Pan A, Aswal VK, Abe M, Mandal AB, Moulik SP. Interaction between sodium dodecylsulfate (SDS) and pluronic L61 in aqueous medium: assessment of the nature and morphology of the formed mixed aggregates by NMR, EPR, SANS and FF-TEM measurements. Phys Chem Chem Phys 2021; 23:13170-13180. [PMID: 34079976 DOI: 10.1039/d0cp06227h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction of copolymer L61 i.e., (EO)2(PO)32(EO)2 (where EO and PO are ethylene and propylene oxides, respectively) with surfactant SDS (sodium dodecylsulfate) in relation to their self-aggregation, dynamics and microstructures has been physicochemically studied in detail employing the Nuclear Magnetic Resonance (NMR), Electron Paramagnetic Resonance (EPR), Small-Angle Neutron Scattering (SANS), and Freeze-Fracture Transmission Electron Microscopy (FF-TEM) methods. The NMR self-diffusion study indicated a synergistic interaction between SDS and L61 forming L61-SDS mixed complex aggregates, and deuterium (2H) NMR pointed out the nonspherical nature of these aggregates with increasing [L61]. EPR spectral analysis of the motional parameters of 5-doxyl steraric acid (5-DSA) as a spin probe provided information on the microviscosity of the local environment of the L61-SDS complex aggregates. SANS probed the geometrical aspects of the SDS-L61 assemblies as a function of both [L61] and [SDS]. Progressive evolution of the mixed-aggregate geometries from globular to prolate ellipsoids with axial ratios ranging from 2 to 10 with increasing [L61] was found. Such morphological changes were further corroborated with the results of 2H NMR and FF-TEM measurements. The strategy of the measurements, and data analysis for a concerted conclusion have been presented.
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Affiliation(s)
- G K S Prameela
- Inorganic & Physical Chemistry Laboratory, CSIR - Central Leather Research Institute, Adyar, Chennai-600020, India.
| | - B V N Phani Kumar
- NMR, CATERS, CSIR - Central Leather Research Institute, Adyar, Chennai-600020, India
| | - J Subramanian
- Inorganic & Physical Chemistry Laboratory, CSIR - Central Leather Research Institute, Adyar, Chennai-600020, India.
| | - K Tsuchiya
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - A Pan
- Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - M Abe
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - A B Mandal
- Inorganic & Physical Chemistry Laboratory, CSIR - Central Leather Research Institute, Adyar, Chennai-600020, India.
| | - S P Moulik
- Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
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Ikeda I, Kuo PL, Tsuchiya K, Okahara M. Structural Effects of the Isomeric Hydrophilic Groups of Surfactants on their Properties. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1984-210511] [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: 11/15/2022]
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Okada T, Kako E, Konomi T, Masuzawa M, Sakai H, Tsuchiya K, Ueki R, Umemori K, Pizzol P, Poudel A, Tajima T. Systematic evaluation of magnetic sensitivities of anisotropic magnetoresistive sensors at liquid helium temperature for superconducting cavities. Rev Sci Instrum 2021; 92:035003. [PMID: 33820008 DOI: 10.1063/5.0038805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
Trapped magnetic flux in bulk superconductors reduces the quality factor Q in superconducting radio-frequency (SRF) cavities. However, the mechanisms underlying flux trapping and radio-frequency loss are not well understood. Detailed observation of the magnetic distributions is important for understanding such phenomena. Magnetic field mapping is useful for observing the magnetic field distribution around SRF cavities. Measuring the change in the magnetic field around the cavity elucidates the flux trapping behavior. Anisotropic magnetoresistive (AMR) sensors are inexpensive and small devices that can detect magnetic flux density. The magnetic sensitivities of AMR sensors need to be evaluated at liquid helium temperature for the magnetic field mapping of SRF cavities. In this study, a test stand was constructed to calibrate the magnetic sensitivities of AMR sensors in liquid helium, and 110 AMR sensors were tested using this stand. The magnetic sensitivities were evaluated systematically. A solenoid coil was used to control the uniform external magnetic field and to measure the magnetic sensitivity at low temperatures. All AMR sensors exhibited suitable sensitivities to the magnetic field around the SRF cavity. The variation in these sensitivities in all AMR sensors was ∼1%. The AMR sensors were found to have sufficient sensitivity for mapping the magnetic field around the exterior surface of the SRF cavity.
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Affiliation(s)
- T Okada
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - E Kako
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - T Konomi
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - M Masuzawa
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - H Sakai
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - K Tsuchiya
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - R Ueki
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - K Umemori
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - P Pizzol
- LANL, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A Poudel
- LANL, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - T Tajima
- LANL, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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Marlina M, Lestari E, Abidin A, Hambali H, Saptiama I, Febriana S, Kadarisman K, Awaludin R, Tanase M, Nishikata K, Tsuchiya K. Molybdenum-99 (<sup>99</sup>Mo) Adsorption Profile of Zirconia-Based Materials for <sup>99</sup>Mo/<sup>99m</sup>Tc Generator Application. Atom Indo 2020. [DOI: 10.17146/aij.2020.914] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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8
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Abe T, Minami K, Harabayashi T, Sazawa A, Chiba H, Kikuchi H, Miyata H, Matsumoto R, Osawa T, Maruyama S, IshizakiIshizaki J, Mochizuki T, Chiba S, Akino T, Murakumo M, Miyajima N, Tsuchiya K, Murai S, Shinohara N. Erratum to: Outcome of maintenance systemic chemotherapy with drug-free interval for metastatic urothelial carcinoma. Jpn J Clin Oncol 2020; 50:726. [PMID: 32382760 PMCID: PMC7284546 DOI: 10.1093/jjco/hyz196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 11/21/2022] Open
Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - K Minami
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Harabayashi
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - A Sazawa
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Kikuchi
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - H Miyata
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - R Matsumoto
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - T Osawa
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - S Maruyama
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | | | - T Mochizuki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Akino
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - M Murakumo
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - N Miyajima
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - K Tsuchiya
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Murai
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - N Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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Affiliation(s)
- C C T Lim
- Department of NeuroradiologyNational Neuroscience InstituteDuke-NUS Graduate Medical SchoolSingapore
| | - K Tsuchiya
- Department of RadiologySaitama Medical Center, Saitama Medical UniversityKawagoe City, Saitama, Japan
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Abe T, Minami K, Harabayashi T, Sazawa A, Chiba H, Kikuchi H, Miyata H, Matsumoto R, Osawa T, Maruyama S, Ishizaki J, Mochizuki T, Chiba S, Akino T, Murakumo M, Miyajima N, Tsuchiya K, Murai S, Shinohara N. Outcome of maintenance systemic chemotherapy with drug-free interval for metastatic urothelial carcinoma. Jpn J Clin Oncol 2020; 49:965-971. [PMID: 31187865 PMCID: PMC6886465 DOI: 10.1093/jjco/hyz084] [Citation(s) in RCA: 4] [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: 03/18/2019] [Revised: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Aiming to achieve long-term disease control, maintenance systemic chemotherapy (MSC) with a 1-3-month drug-free interval is continued in selected patients. We report our experience of MSC for metastatic urothelial carcinoma (UC). METHODS Of 228 metastatic UC patients treated with systemic chemotherapy, 40 (17.5%, 40/228) had continuously undergone MSC. Data on the regimen, cycle number, and reason for the discontinuation of MSC were also collected. We analyzed OS from the initiation of MSC until death or the last follow-up, using the log-rank test to assess the significance of differences. RESULTS The median number of cycles of chemotherapy was 6, and the responses were CR in 6, PR in 20, SD in 13, and PD in 1 before MSC. Gemcitabine plus CDDP or carboplatin was mainly performed as MSC (70%, 28/40). MSC was repeated quarterly in 30 (75%, 30/40), every two months in 8 (20%, 8/40), and with other intervals in 2 (5%, 2/40). Overall, a median of 3.5 cycles (range: 1-29) of MSC was performed. The reason for the discontinuation of MSC was PD in 24 (60%, 24/40), favorable disease control in 9 (22.5%, 9/40), and myelosuppression in 3 (7.5%, 3/40), and for other reasons in 2 (5%, 2/40). MSC was ongoing in 2 (5%, 2/40). The median OS was 27 months from the initiation of MSC. PS0 (P = 0.0169), the absence of lung metastasis (P = 0.0387), and resection of the primary site (P = 0.0495) were associated with long-term survival after MSC. CONCLUSIONS In selected patients, long-term systemic chemotherapy could be performed with a drug-free interval. Our maintenance strategy with cytotoxic drugs may become one of the treatment options for long-term disease control.
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Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - K Minami
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Harabayashi
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - A Sazawa
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Kikuchi
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - H Miyata
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - R Matsumoto
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - T Osawa
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - S Maruyama
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - J Ishizaki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Mochizuki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Akino
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - M Murakumo
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - N Miyajima
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - K Tsuchiya
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Murai
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - N Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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Abstract
A 61-year-old man was referred to our hospital with dyspnea and an abnormal lung shadow. His occupational history, pathological findings, and an elemental analysis led to a definitive diagnosis of pneumoconiosis induced by titanium grindings. The patient experienced gradual improvement solely by avoiding titanium grindings. Titanium-induced lung disease is very rare, and most of these cases are caused by inhalation of titanium dioxide (TiO2), which is included in a wide range of commercially available products, such as paints, pigments, and cosmetics. However, industrial workers can also develop lung diseases due to the inhalation of metallic titanium materials during metal grinding.
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Affiliation(s)
- Yuki Iijima
- The Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan
| | - Tomoya Tateishi
- The Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan
| | - Kimitake Tsuchiya
- The Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan
| | - Yuki Sumi
- The Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan
| | - Takumi Akashi
- The Department of Pathology, Tokyo Medical and Dental University, Japan
| | - Yasunari Miyazaki
- The Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan
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Yoshimura K, Inoue Y, Tsuchiya K, Iwashita Y, Kahyo T, Kawase A, Tanahashi M, Suzuki Y, Karayama M, Ogawa H, Inui N, Funai K, Shinmura K, Niwa H, Suda T, Sugimura H. P2.03-43 WTAP Activates Oncogenes and Accelerates Tumor Aggressiveness Through Adding m6A RNA Modification in Non-Small-Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1490] [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: 10/25/2022]
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13
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Ota H, Omori H, Tanigaki T, Okamoto S, Hirata T, Kikuchi J, Sobue Y, Miyake T, Kawamura I, Kawase Y, Okubo M, Kamiya H, Tsuchiya K, Matsuo H. 6108Efficacy of the PCSK9 inhibitor for lipid-rich coronary plaque reduction: a near-infrared spectroscopy analysis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Recently, some studies have highlighted proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors produce incremental low-density lipoprotein cholesterol (LDL-C) lowering effect. However, it is unknown whether the lipid composition of plaque changes is associated with serum LDL-C reduction due to PCSK9 inhibitors administration.
Purpose
The purpose of this study was to determine the effects of PCSK9 inhibitor (PCSK9i) on coronary plaque component in patients with a history of coronary artery disease (CAD) assessed by near-infrared spectroscopy intravascular ultrasound (NIRS-IVUS).
Methods
A total of 67 non-culprit coronary segments were identified in 34 patients. These lesions were analyzed utilizing NIRS-IVUS at baseline and follow-up coronary angiography (CAG). The subjects were divided into two groups according to lipid-lowering treatment; administration of PCSK9i group (PCSK9i: 19 segments, 9 patients) and traditional statin treatment group (Control: 48 segments, 25 patients). The change of lipid-rich plaque distribution between baseline and follow-up NIRS-IVUS was defined as the change of maximal lipid core burden index (LCBI) score for each of the 4-mm longitudinal segments (maxLCBI4mm).
Results
Mean duration from baseline to follow-up CAG was 239.4±52.4 days in the PCSK9i group and 341.0±84.1 days in the Control group (p<0.001). Despite the higher total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) in the PCSK9i group at baseline (206.6±40.9 mg/dl vs. 168.5±37.1 mg/dl, 131.5±35.4 mg/dl vs. 100.0±29.5 mg/dl; respectively, p<0.001 for both), the PCSK9i group was significantly lower TC and LDL-C at the follow-up (111.5±23.5 mg/dl vs. 157.4±27.8 mg/dl, 40.8±15.7 mg/dl vs. 86.2±19.6 mg/dl; respectively, p<0.001 for both). Furthermore, the PCSK9i group induced greater regression of maxLCBI4mm than that of Control group (99.6±156.6 vs. 27.9±118.0, p=0.046) (Figure).
Figure 1
Conclusion
Compared with traditional statin therapy, PCSK9i treatment resulted in a greater decrease in lipid component in non-culprit coronary plaques. Therefore, PCSK9i may be useful option in preventing from adverse coronary events for the patients with CAD.
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Affiliation(s)
- H Ota
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - H Omori
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - T Tanigaki
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - S Okamoto
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - T Hirata
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - J Kikuchi
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - Y Sobue
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - T Miyake
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - I Kawamura
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - Y Kawase
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - M Okubo
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - H Kamiya
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - K Tsuchiya
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - H Matsuo
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
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Sakamoto A, Kurosaki M, Tsuchiya K, Abe T, Ogawa C, Soda T, Kimura H, Kondo M, Tsuji K, Koichiro F, Shigeno M, Jyoko K, Narita R, Uchida Y, Yoshida H, Akahane T, Kobashi H, Mitsuda A, Marusawa H, Izumi N. The efficacy and safety of lenvatinib in patients who did not meet the inclusion criteria of the phase III trial (REFLECT trial) and those with BCLC Stage B hepatocellular carcinoma: A nationwide multicenter study in Japan. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.078] [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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Ohno T, Zhang C, Kondo Y, Kang S, Furusawa E, Tsuchiya K, Miyazaki Y, Azuma M. The immune checkpoint molecule VISTA regulates allergen-specific Th2-mediated immune responses. Int Immunol 2019; 30:3-11. [PMID: 29267882 DOI: 10.1093/intimm/dxx070] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/15/2017] [Indexed: 12/13/2022] Open
Abstract
V-domain immunoglobulin suppressor of T-cell activation (VISTA) is a novel immune checkpoint receptor and ligand that regulates T-cell activation. We investigated the functional involvement of VISTA in Th2 cell-mediated immune responses using an ovalbumin (OVA)-induced allergic asthma model. Treatment with an anti-VISTA monoclonal antibody (mAb) during allergen sensitization increased the production of antibodies, including total IgE, OVA-specific IgG1 and IgG2a and allergen-specific IL-5 and IL-13; it also increased the expression of IL-13 by splenic CD4+ T cells. However, treatment with the anti-VISTA mAb during sensitization did not accelerate asthmatic responses, including airway hyper-responsiveness (AHR) or the number of eosinophils in bronchoalveolar lavage (BAL) fluid. In contrast, treatment with the anti-VISTA mAb during allergen challenge significantly augmented AHR and BAL fluid eosinophilia. This treatment also increased the production of IL-5 and IL-13 in BAL fluid and the expression of IL-13 by CD4+ T cells in draining lymph nodes. These results suggest that VISTA is involved in the regulation of Th2 cell generation and Th2 cell-mediated antibody production and regulates asthmatic responses, especially in the effector phase.
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Affiliation(s)
- Tatsukuni Ohno
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan
| | - Chenyang Zhang
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan
| | - Yuta Kondo
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan
| | - Siwen Kang
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan
| | - Emi Furusawa
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan
| | - Kimitake Tsuchiya
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan
| | - Miyuki Azuma
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Tokyo, Japan
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16
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Saito H, Tsuchiya K, Chiba S, Ogata T, Imase R, Yagi T, Mishima Y, Jinta T, Saito K, Taki R, Isogai S, Jin Y, Kawasaki T, Natsume I, Miyashita Y, Takagiwa J, Ishiwata N, Chiaki T, Kishi M, Tsukada Y, Yamasaki M, Inase N, Miyazaki Y. Treatment of asthma in smokers: A questionnaire survey in Japanese clinical practice. Respir Investig 2018; 57:126-132. [PMID: 30552072 DOI: 10.1016/j.resinv.2018.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/06/2018] [Accepted: 11/13/2018] [Indexed: 01/28/2023]
Abstract
BACKGROUND Cigarette smoking in patients with asthma leads to poor symptom control. As patients who are current smokers have been excluded from enrollment in many clinical trials on asthma, there are few reports on the treatment in current smokers with asthma. In this study, we aimed to assess how respiratory physicians manage asthma in current smokers in Japan. METHODS Respiratory physicians in 16 Japanese hospitals answered a questionnaire on treatment for patients with asthma between December 2014 and February 2015. Medical records were reviewed for 1756 patients with asthma. RESULTS The mean patient age was 61.1 years, and 62.9% of the patients were female. A total of 102 patients (5.8%) were current smokers, and 546 patients (31.1%) were former smokers. Long-acting muscarinic antagonists (LAMA) were prescribed more frequently for current smokers with asthma than for former smokers and never smokers with asthma (10.8% vs 4.6%, p = 0.01, 10.8% vs 3.8%, p < 0.01). In contrast, macrolides were prescribed more frequently for former smokers and never smokers with asthma than for current smokers with asthma (7.7% vs 1.0%, p = 0.01, 6.4% vs 1.0%, p = 0.03). Triple therapy, i.e., inhaled corticosteroids, long-acting beta agonists, and LAMA concomitantly, was prescribed for current smokers with asthma more frequently than for former smokers and never smokers with asthma (9.8% vs 4.0%, p = 0.01, 9.8% vs 3.3%, p < 0.01). CONCLUSIONS According to this survey, current smokers with asthma received more intensive therapy, including LAMA, than did former smokers with asthma.
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Affiliation(s)
- Hiroaki Saito
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
| | - Kimitake Tsuchiya
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
| | - Sahoko Chiba
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
| | - Tomoyuki Ogata
- Department of Respiratory Medicine, JA Toride Medical Center, 2-1-1 Hongo, Toride-shi, Ibaraki 302-0022, Japan.
| | - Reina Imase
- Department of Respiratory Medicine, JA Toride Medical Center, 2-1-1 Hongo, Toride-shi, Ibaraki 302-0022, Japan.
| | - Tamon Yagi
- Department of Respiratory Medicine, JA Toride Medical Center, 2-1-1 Hongo, Toride-shi, Ibaraki 302-0022, Japan.
| | - Yuka Mishima
- Department of Respiratory Medicine, JA Toride Medical Center, 2-1-1 Hongo, Toride-shi, Ibaraki 302-0022, Japan.
| | - Torahiko Jinta
- Department of Respiratory Medicine, St. Luke׳s International Hospital, 9-1 Akashi-cho, Chuo-ku, Tokyo 104-8560, Japan.
| | - Kazuhito Saito
- Department of Respiratory Medicine, Tsuchiura Kyodo General Hospital, 4-1-1 Otsuno, Tsuchiura-shi, Ibaraki 300-0028, Japan.
| | - Reiko Taki
- Department of Respiratory Medicine, Japanese Red Cross Musashino Hospital, 1-26-1 Kyonancho, Musashino-shi, Tokyo 180-8610, Japan.
| | - Susumu Isogai
- Department of Respiratory Medicine, Ome Municipal General Hospital, 4-16-5 Higashiome, Ome-shi, Tokyo 198-0042, Japan.
| | - Yasuto Jin
- Department of Respiratory Medicine, Hiratsuka Kyosai Hospital, 9-11 Oiwake, Hiratsuka-shi, Kanagawa 254-8502, Japan.
| | - Tsutomu Kawasaki
- Department of Respiratory Medicine, Yokohama City Minato Red Cross Hospital, 3-12-1 Shinyamashita, Naka-ku, Yokohama-shi, Kanagawa 231-8682, Japan.
| | - Ichiro Natsume
- Department of Respiratory Medicine, Yokosuka Kyosai Hospital, 1-16 Yonegahama-dori, Yokosuka-shi, Kanagawa 238-8558, Japan.
| | - Yoshihiro Miyashita
- Department of Respiratory Medicine, Yamanashi Prefectural Central Hospital, 1-1-1 Fujimi, Kofu-shi, Yamanashi 400-8506, Japan.
| | - Jun Takagiwa
- Department of Respiratory Medicine, Tokyo Kyosai Hospital, 2-3-8 Nakameguro, Meguro-ku, Tokyo 153-8934, Japan.
| | - Nobuo Ishiwata
- Internal Medicine, Kudanzaka Hospital, 1-6-12 Kudanminami, Chiyoda-ku, Tokyo 102-0074, Japan.
| | - Tomoshige Chiaki
- Department of Respiratory Medicine, Hokushin General Hospital, 1-5-63 Nishi, Nakano-shi, Nagano 383-8505, Japan.
| | - Masato Kishi
- Department of Respiratory Medicine, Mishima General Hospital, 2276 Aza-fujikubo, Yata, Mishima-shi, Shizuoka 411-0801, Japan.
| | - Yoshikazu Tsukada
- Department of Respiratory Medicine, Soka Municipal Hospital, 2-21-1 Soka, Soka-shi, Saitama 340-8560, Japan.
| | - Motohisa Yamasaki
- Department of Respiratory Medicine, Nitobe Memorial Nakano General Hospital, 4-59-16 Chuo, Nakano-ku, Tokyo 164-8607, Japan.
| | - Naohiko Inase
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
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17
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Nishimura Y, Kodaira T, Ito Y, Tsuchiya K, Murakami Y, Saitoh J, Akimoto T, Nakata K, Yoshimura M, Teshima T, Toshiyasu T, Ota Y, Ishikawa K, Shimizu H, Minemura T, Ishikura S, Shibata T, Nakamura K, Shibata T, Hiraoka M. A Phase II Study of Two-Step Intensity Modulated Radiation Therapy (IMRT) with Chemotherapy for Loco-Regionally Advanced Nasopharyngeal Cancer (NPC) (JCOG1015). Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.314] [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: 10/28/2022]
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18
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Fujima N, Hirata K, Shiga T, Li R, Yasuda K, Onimaru R, Tsuchiya K, Kano S, Mizumachi T, Homma A, Kudo K, Shirato H. Integrating quantitative morphological and intratumoural textural characteristics in FDG-PET for the prediction of prognosis in pharynx squamous cell carcinoma patients. Clin Radiol 2018; 73:1059.e1-1059.e8. [PMID: 30245069 DOI: 10.1016/j.crad.2018.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/24/2018] [Indexed: 12/15/2022]
Abstract
AIM To assess potential prognostic factors in pharynx squamous cell carcinoma (SCC) patients by quantitative morphological and intratumoural characteristics obtained by 2-[18F]-fluoro-2-deoxy-d-glucose positron-emission tomography/computed tomography (FDG-PET/CT). MATERIALS AND METHODS The cases of 54 patients with pharynx SCC who underwent chemoradiation therapy were analysed retrospectively. Using their FDG-PET data, the quantitative morphological and intratumoural characteristics of 14 parameters were calculated. The progression-free survival (PFS) and overall survival (OS) information was obtained from patient medical records. Univariate and multivariate analyses were performed to assess the 14 quantitative parameters as well as the T-stage, N-stage, and tumour location data for their relation to PFS and OS. When an independent predictor was suggested in the multivariate analysis, the parameter was further assessed using the Kaplan-Meier method. RESULTS In the assessment of PFS, the univariate and multivariate analyses indicated the following as independent predictors: the texture parameter of homogeneity and the morphological parameter of sphericity. In the Kaplan-Meier analysis, the PFS rate was significantly improved in the patients who had both a higher value of homogeneity (p=0.01) and a higher value of sphericity (p=0.002). With the combined use of homogeneity and sphericity, the patients with different PFS rates could be divided more clearly. CONCLUSION The quantitative parameters of homogeneity and sphericity obtained by FDG-PET can be useful for the prediction of the PFS of pharynx SCC patients, especially when used in combination.
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Affiliation(s)
- N Fujima
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, N14 W5, Kita-Ku, Sapporo 0608638, Japan.
| | - K Hirata
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - T Shiga
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - R Li
- Department of Radiation Oncology, Stanford University, 875 Blake Wilbur Drive, Stanford, CA 94305-5847, USA; The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan
| | - K Yasuda
- The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan; Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - R Onimaru
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - K Tsuchiya
- Department of Radiation Oncology, Otaru General Hospital, Wakamatsu1-1-1, Otaru 0478550, Japan
| | - S Kano
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - T Mizumachi
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - A Homma
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - K Kudo
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, N14 W5, Kita-Ku, Sapporo 0608638, Japan
| | - H Shirato
- The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan; Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
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19
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Sobue Y, Matsuo H, Kawase Y, Kondo T, Tanigaki T, Okamoto S, Omori H, Hirata T, Kikuchi J, Ota H, Miyake T, Kawamura I, Kamiya H, Tsuchiya K, Suzuki T. 3284Impact of noninvasive fractional flow reserve derived from coronary computed tomography angiography for prognosis in patients with suspected stable coronary artery disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Sobue
- Gifu Heart Center, Gifu, Japan
| | | | | | - T Kondo
- Gifu Heart Center, Gifu, Japan
| | | | | | - H Omori
- Gifu Heart Center, Gifu, Japan
| | | | | | - H Ota
- Gifu Heart Center, Gifu, Japan
| | | | | | | | | | - T Suzuki
- Toyohashi Heart Center, Toyohashi, Japan
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20
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Yajima A, Tsuchiya K, Bonewald LF, Inaba M, Tominaga Y, Tanizawa T, Ito A, Nitta K. Case report: Electron microscopic evaluation of bone from a patient treated with cinacalcet hydrochloride, maxacalcitol, and alfacalcidol for hyperparathyroid bone disease with secondary hyperparathyroidism. Osteoporos Int 2018; 29:1203-1209. [PMID: 29492624 DOI: 10.1007/s00198-018-4402-3] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 01/18/2018] [Indexed: 11/27/2022]
Abstract
Evaluation of bone is of great importance in chronic kidney disease patients, as these patients are at an increased risk for fractures. We treated a hemodialysis patient suffering from hyperparathyroid bone disease with cinacalcet hydrochloride and concurrent administration of maxacalcitol and alfacalcidol for a year. Hyperparathyroid bone disease is characterized by cortical thinning, increased cortical porosity, reduced trabecular bone volume, and increased hypomineralized matrix volume, and there is little information to date about the effects of treatment with cinacalcet hydrochloride on the bone fragility in patients with hyperparathyroid bone disease. In the present study, histological and backscattered electron microscopic evaluation of this combination treatment revealed an excellent improvement of both bone volume and bone morphology. This treatment improved cortical thinning, cortical porosity, and trabecular thinning. Furthermore, the treatment also reduced hypomineralized matrix volume, indicative of improved mineralization by osteocytes. We speculate that the intermittent maxacalcitol administration may have effectively stimulated the vitamin D receptors expressed on osteocytes and osteoblasts, resulting in increased mineralization. Our approach for evaluating the bone in patients with chronic kidney disease by backscattered electron microscopy is novel.
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Affiliation(s)
- A Yajima
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan.
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA.
| | - K Tsuchiya
- Department of Blood Purification, Kidney Center, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - L F Bonewald
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Oral and Craniofacial Sciences, University of Missouri, School of Dentistry, Kansas City, MI, USA
| | - M Inaba
- Department of Metabolism, Endocrinology and Molecular Medicine, Osaka City University, Abeno-ku, Osaka, Japan
| | - Y Tominaga
- Department of Endocrine Surgery, Nagoya Second Red Cross Hospital, Nagoya, Aichi, Japan
| | - T Tanizawa
- Department of Orthopedic Surgery, Tanizawa Clinic, Niigata, Niigata, Japan
| | - A Ito
- Ito Bone Histomorphometry Institute, Niigata, Niigata, Japan
| | - K Nitta
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
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21
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Abstract
The authors developed a portable air driving unit for an artificial heart. As the portable energy source of the driver, a commercially available Ni-Cd battery was used. A linear compressor was selected as a portable size compressor. To reduce the number of parts to be assembled, a new type of pneumatic system was employed. In this system, the pressure level was regulated by varying the output flow rate of the compressor instead of using a pressure regulator and large air reservoirs. A one-board microcomputer and pressure sensors were used to control the pressure level. The total weight of the unit is 9.5 Kg. After assembling the components into the portable unit, a blood pump was connected to examine the output characteristics of the system. It was confirmed that the unit could drive the blood pump continuously for more than 2 hours under the following conditions: output flow rate of the blood pump = 5 L/min and output pressure — 100 mmHg.
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Affiliation(s)
- N. Kabei
- Institute of Bio-medical Engineering, Tokyo Women's Medical College. 8-1 Kawada-cho Shinjuku-ku Tokyo, 162 Japan
| | - E. Shimemura
- Department of Mechanical Engineering, Faculty of Science and Engineering, Waseda Univerisity, 3-4-1 Okubo, Shinjuku-ku, Tokyo - Japan
| | - Y. Sakurai
- Institute of Bio-medical Engineering, Tokyo Women's Medical College. 8-1 Kawada-cho Shinjuku-ku Tokyo, 162 Japan
| | - K. Tsuchiya
- Department of Mechanical Engineering, Faculty of Science and Engineering, Waseda Univerisity, 3-4-1 Okubo, Shinjuku-ku, Tokyo - Japan
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22
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Shalaby KH, Al Heialy S, Tsuchiya K, Farahnak S, McGovern TK, Risse PA, Suh WK, Qureshi ST, Martin JG. The TLR4-TRIF pathway can protect against the development of experimental allergic asthma. Immunology 2017; 152:138-149. [PMID: 28502093 DOI: 10.1111/imm.12755] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 04/25/2017] [Accepted: 05/03/2017] [Indexed: 12/17/2022] Open
Abstract
The Toll-like receptor (TLR) adaptor proteins myeloid differentiating factor 88 (MyD88) and Toll, interleukin-1 receptor and resistance protein (TIR) domain-containing adaptor inducing interferon-β (TRIF) comprise the two principal limbs of the TLR signalling network. We studied the role of these adaptors in the TLR4-dependent inhibition of allergic airway disease and induction of CD4+ ICOS+ T cells by nasal application of Protollin™, a mucosal adjuvant composed of TLR2 and TLR4 agonists. Wild-type (WT), Trif-/- or Myd88-/- mice were sensitized to birch pollen extract (BPEx), then received intranasal Protollin followed by consecutive BPEx challenges. Protollin's protection against allergic airway disease was TRIF-dependent and MyD88-independent. TRIF deficiency diminished the CD4+ ICOS+ T-cell subsets in the lymph nodes draining the nasal mucosa, as well as their recruitment to the lungs. Overall, TRIF deficiency reduced the proportion of cervical lymph node and lung CD4+ ICOS+ Foxp3- cells, in particular. Adoptive transfer of cervical lymph node cells supported a role for Protollin-induced CD4+ ICOS+ cells in the TRIF-dependent inhibition of airway hyper-responsiveness. Hence, our data demonstrate that stimulation of the TLR4-TRIF pathway can protect against the development of allergic airway disease and that a TRIF-dependent adjuvant effect on CD4+ ICOS+ T-cell responses may be a contributing mechanism.
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Affiliation(s)
- Karim H Shalaby
- Department of Medicine, Meakins-Christie Laboratories, McGill University Health Centre Research Institute, McGill University, Montréal, QC, Canada
| | - Saba Al Heialy
- Department of Medicine, Meakins-Christie Laboratories, McGill University Health Centre Research Institute, McGill University, Montréal, QC, Canada
| | - Kimitake Tsuchiya
- Department of Medicine, Meakins-Christie Laboratories, McGill University Health Centre Research Institute, McGill University, Montréal, QC, Canada
| | - Soroor Farahnak
- Department of Medicine, Meakins-Christie Laboratories, McGill University Health Centre Research Institute, McGill University, Montréal, QC, Canada
| | - Toby K McGovern
- Department of Medicine, Meakins-Christie Laboratories, McGill University Health Centre Research Institute, McGill University, Montréal, QC, Canada
| | - Paul-Andre Risse
- Department of Medicine, Meakins-Christie Laboratories, McGill University Health Centre Research Institute, McGill University, Montréal, QC, Canada
| | - Woong-Kyung Suh
- Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
| | - Salman T Qureshi
- Department of Medicine, Meakins-Christie Laboratories, McGill University Health Centre Research Institute, McGill University, Montréal, QC, Canada
| | - James G Martin
- Department of Medicine, Meakins-Christie Laboratories, McGill University Health Centre Research Institute, McGill University, Montréal, QC, Canada
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Akioka K, Ishikawa T, Osaka M, Kadotani Y, Okugawa K, Nakano K, Osaka Y, Tsuchiya K, Sako H. Hyperuricemia and Acute Renal Failure in Renal Transplant Recipients Treated With High-Dose Mizoribine. Transplant Proc 2017; 49:73-77. [PMID: 28104163 DOI: 10.1016/j.transproceed.2016.11.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hyperuricemia is a common adverse event frequently found in renal transplant recipients with mizoribine (MZ). Hyperuricemia itself will be a cause of renal dysfunction, and renal dysfunction also will be a cause of hyperuricemia simultaneously. This study investigates frequency of hyperuricemia and renal failure in renal transplant recipients treated with high-dose MZ. PATIENTS AND METHODS From December 2007 to October 2015, there was a total of 32 living related renal transplant recipients treated with high-dose MZ. Of the 32 patients, 28 were treated with urate-lowering medications. RESULTS One patient received allopurinol (AP) and 13 patients received benzbromarone (BB). For 6 of them, their urate-lowering medications were converted to febuxostat (FX) form AP or BB. In the remaining 14 patients, FX was administered from the beginning. In 2 cases of ABO-incompatible living related renal transplant recipients who were maintained with high-dose MZ and BB, severe hyperuricemia and acute renal failure occurred. One patient was a 48-year-old man, and his creatinine (Cr) level increased to 8.14 mg/dL and his serum uric acid (UA) was 24.6 mg/dL. Another patient was a 57-year-old man, and his Cr level increased to 3.59 mg/dL and his UA was 13.2 mg/dL. In both cases Cr and UA were improved, and no finding of acute rejection and drug toxicity was observed in graft biopsy specimens. BB was switched to FX and discontinuance or reduction of MZ was done. CONCLUSION Combination of MZ and BB has the risk of acute renal dysfunction after renal transplantation. Latent renal dysfunction should be watched for in renal transplant recipients receiving high-dose MZ.
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Affiliation(s)
- K Akioka
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan.
| | - T Ishikawa
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - M Osaka
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - Y Kadotani
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - K Okugawa
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - K Nakano
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - Y Osaka
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - K Tsuchiya
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - H Sako
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
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24
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Affiliation(s)
- K. Tsuchiya
- Japan Atomic Energy Agency 4002 Narita-cho, Oarai-machi, Higashi-ibaraki-gun, Ibaraki-ken 311-1393, Japan
| | - H. Kawamura
- Japan Atomic Energy Agency 4002 Narita-cho, Oarai-machi, Higashi-ibaraki-gun, Ibaraki-ken 311-1393, Japan
| | - T. Ishida
- Japan Atomic Energy Agency 4002 Narita-cho, Oarai-machi, Higashi-ibaraki-gun, Ibaraki-ken 311-1393, Japan
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25
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Longhurst GR, Tsuchiya K, Dorn CH, Folkman SL, Fronk TH, Ishihara M, Kawamura H, Tranter TN, Rohe R, Uchida M, Vidal E. Managing Beryllium in Nuclear Facility Applications. NUCL TECHNOL 2017. [DOI: 10.13182/nt11-a13318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - K. Tsuchiya
- Japan Atomic Energy Agency, Oarai-machi, Higashiibaraki-gun, Ibaraki-ken, Japan
| | - C. H. Dorn
- Materion Brush Beryllium & Composites, Upland, California
| | | | | | - M. Ishihara
- Japan Atomic Energy Agency, Oarai-machi, Higashiibaraki-gun, Ibaraki-ken, Japan
| | - H. Kawamura
- Japan Atomic Energy Agency, Oarai-machi, Higashiibaraki-gun, Ibaraki-ken, Japan
| | - T. N. Tranter
- Materion Brush Beryllium & Composites, Upland, California
| | - R. Rohe
- Idaho National Laboratory, Idaho Falls, Idaho
| | - M. Uchida
- NGK Insulators Ltd., Handa-shi, Aichi-ken, Japan
| | - E. Vidal
- Materion Brush Beryllium & Composites, Elmore, Ohio
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26
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Sugie T, Hatae T, Koide Y, Fujita T, Kusama Y, Nishitani T, Isayama A, Sato M, Shinohara K, Asakura N, Konoshima S, Kubo H, Takenaga H, Kawano Y, Kondoh T, Nagashima A, Fukuda T, Sunaoshi H, Naito O, Kitamura S, Tsukahara Y, Sakasai A, Sakamoto Y, Suzuki T, Tobita K, Nemoto M, Morioka A, Ishikawa M, Ishida S, Isei N, Oyama N, Neyatani Y, Itami K, Sakurai S, Tamai H, Tsuchiya K, Higashijima S, Nakano T, Nagaya S, Chiba S, Lee S, Shitomi M. Diagnostics System of JT-60U. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a242] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Sugie
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Hatae
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Koide
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Fujita
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Nishitani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - K. Shinohara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - N. Asakura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Konoshima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - H. Kubo
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - H. Takenaga
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Kawano
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Kondoh
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - A. Nagashima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Fukuda
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - H. Sunaoshi
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - O. Naito
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Kitamura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Tsukahara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - A. Sakasai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Sakamoto
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Suzuki
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - K. Tobita
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - M. Nemoto
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - A. Morioka
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - M. Ishikawa
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Ishida
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - N. Isei
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - N. Oyama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Neyatani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - K. Itami
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Sakurai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - H. Tamai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - K. Tsuchiya
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Higashijima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Nakano
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Nagaya
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Chiba
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Lee
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - M. Shitomi
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
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27
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Kamada Y, Fujita T, Ishida S, Kikuchi M, Ide S, Takizuka T, Shirai H, Koide Y, Fukuda T, Hosogane N, Tsuchiya K, Hatae T, Takenaga H, Sato M, Nakamura H, Naito O, Asakura N, Kubo H, Higashijima S, Miura Y, Yoshino R, Shimizu K, Ozeki T, Hirayama T, Mori M, Sakamoto Y, Kawano Y, Isayama A, Ushigusa K, Ikeda Y, Kimura H, Fujii T, Imai T, Nagami M, Takeji S, Oikawa T, Suzuki T, Nakano T, Oyama N, Sakurai S, Konoshima S, Sugie T, Tobita K, Kondoh T, Tamai H, Neyatani Y, Sakasai A, Kusama Y, Itami K, Shimada M, Ninomiya H, Urano H. Fusion Plasma Performance and Confinement Studies on JT-60 and JT-60U. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a227] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Kamada
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fujita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Ishida
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Kikuchi
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Ide
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Takizuka
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Shirai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Koide
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fukuda
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Hosogane
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Tsuchiya
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Hatae
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Takenaga
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Nakamura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - O. Naito
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Asakura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Kubo
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Higashijima
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Miura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - R. Yoshino
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Shimizu
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Ozeki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Hirayama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Mori
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Sakamoto
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Kawano
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Ushigusa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Ikeda
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Kimura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fujii
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Imai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Nagami
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Takeji
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Oikawa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Suzuki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Nakano
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Oyama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Sakurai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Konoshima
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Sugie
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Tobita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Kondoh
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Tamai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Neyatani
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - A. Sakasai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Itami
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Shimada
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Ninomiya
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
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Kulsartov T, Tazhibayeva I, Gordienko Y, Chikhray E, Tsuchiya K, Kawamura H, Kulsartova A. Study of Tritium and Helium Release from Irradiated Lithium Ceramics Li 2TiO 3. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12616] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kulsartov
- Institute of Atomic Energy, NNC RK, Krasnoarmeyskaya-10, Kurchatov, 071100, Kazakhstan
| | - I. Tazhibayeva
- Institute of Atomic Energy, NNC RK, Krasnoarmeyskaya-10, Kurchatov, 071100, Kazakhstan
| | - Yu. Gordienko
- Institute of Atomic Energy, NNC RK, Krasnoarmeyskaya-10, Kurchatov, 071100, Kazakhstan
| | - E. Chikhray
- SRI ETP al-Farabi KazNSU, Tole bi, 96a, Almaty, Kazakhstan
| | - K. Tsuchiya
- Neutron Irradiation and Testing Reactor Center, JAEA, Oarai, Highashiibaraki, Ibaraki, 311-1393 Japan
| | - H. Kawamura
- Neutron Irradiation and Testing Reactor Center, JAEA, Oarai, Highashiibaraki, Ibaraki, 311-1393 Japan
| | - A. Kulsartova
- Nuclear Technology Safety Center, L.Chaikina, 4, Almaty, 050020, Kazakhstan
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Kume S, Gomyo M, Kobayashi K, Saito K, Shimizu S, Suzuki K, Maruyama K, Tsuchiya K, Shiokawa Y, Nagane M. P04.13 Detection and quantitative analysis of oncometabolite 2-hydroxyglutarate by 1H-magnetic resonance spectroscopy and LCModel in gliomas. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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30
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Katoh M, Fujimoto M, Kawaguchi H, Tsuchiya K, Ohmi K, Kaneyasu T, Taira Y, Hosaka M, Mochihashi A, Takashima Y. Angular Momentum of Twisted Radiation from an Electron in Spiral Motion. Phys Rev Lett 2017; 118:094801. [PMID: 28306317 DOI: 10.1103/physrevlett.118.094801] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Indexed: 06/06/2023]
Abstract
We theoretically demonstrate for the first time that a single free electron in circular or spiral motion emits twisted photons carrying well-defined orbital angular momentum along the axis of the electron circulation, in adding to spin angular momentum. We show that, when the electron velocity is relativistic, the radiation field contains harmonic components and the photons of lth harmonic carry lℏ total angular momentum for each. This work indicates that twisted photons are naturally emitted by free electrons and are more ubiquitous in laboratories and in nature than ever thought.
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Affiliation(s)
- M Katoh
- Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki 444-8585, Japan
- Sokendai (the Graduated University for Advanced Studies), Okazaki 444-8585, Japan
| | - M Fujimoto
- Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki 444-8585, Japan
- Sokendai (the Graduated University for Advanced Studies), Okazaki 444-8585, Japan
| | - H Kawaguchi
- Muroran Institute of Technology, Muroran 050-0071, Japan
| | - K Tsuchiya
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Ohmi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | | | - Y Taira
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
| | - M Hosaka
- Nagoya University, Nagoya 464-0814, Japan
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31
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Magata F, Tsuchiya K, Komaki H, Konishi M, Ideta A. 142 POSSIBLE BENEFIT OF INTRACYTOPLASMIC SPERM INJECTION ON THE EFFICIENCY OF EMBRYO PRODUCTION IN AGED COWS. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Reduction in oocyte quality is a major factor responsible for declining fertility with age. The abnormal fertilization rate of oocytes from aged cows was reportedly higher than that of oocytes from young cows (Iwata et al. 2011. Reprod. Fertil. Dev. 23, 424–432). We hypothesised that assisted fertilization by intracytoplasmic sperm injection (ICSI) might improve the developmental abilities of oocytes collected from aged females. The aims of the study were (1) to determine the effect of maternal aging on the ability of bovine oocytes to undergo cytoplasmic maturation, fertilization, and further embryo development; and (2) to determine whether ICSI would improve the efficiency of embryo production in aged cows. Cows aged 30 to 50 months or >120 months were defined as young or aged, respectively. Cumulus-oocyte complexes were harvested from abattoir-derived ovaries of young (40 ± 7 months, n = 89) and aged (136 ± 12 months, n = 55) Holstein cows and matured for 23 h in TCM-199 supplemented with 5% fetal bovine serum (FBS) at 38.5°C under 5% CO2 with saturated humidity. Then, surrounding cumulus cells were removed, and cortical granules in the oocyte were stained with Lens culinaris–fluorescein isothiocyanate to evaluate the cytoplasmic maturation. Matured oocytes were inseminated by IVF or ICSI. At 15 h post-insemination, the numbers of pronuclei were determined to evaluate the fertilization rates. Presumptive IVF- or ICSI-derived zygotes were cultured for 5 days in CR1aa medium with 2% FBS and subsequently in USU6 with 5% FBS for 3 days at 38.5°C in 5% O2, 5% CO2, and 90% N2 with saturated humidity. Chromosome numbers of blastocysts were counted to evaluate the effect of maternal aging on ploidy. All experiments were performed with more than 4 independent runs, and data were analysed using chi-square tests. The distribution of matured oocytes into different cortical granule classes was affected by age, with a significantly lower (P < 0.01) proportion of class III (mature cytoplasm) oocytes from aged cows (29%) compared with those from young cows (57%). Although fertilization rates following IVF did not differ between the groups, the proportion of abnormal fertilization (more than 2 pronuclei) was 32% in the aged group: higher than in the young group (15%; P < 0.01). The rates of cleaved embryos following IVF were the same among groups, but the rate of development to the blastocyst stage of oocytes from aged cows (38%) was significantly (P < 0.05) lower than in those from young cows (52%). Moreover, the proportion of diploid blastocysts with 2 sets of chromosomes (2n = 60) was lower (47%) in the aged than in the young groups (75%; P < 0.05). However, in the ICSI embryos, the rates of development to the blastocyst stage did not differ significantly between groups (young 36%; aged 43%). Thus, maternal aging might impair the cytoplasmic maturation of bovine oocytes, which could be associated with abnormal fertilization or low developmental competence. Our results also indicate possible beneficial effects of ICSI on the efficiency of embryo production in aged cows.
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Chiba S, Tsuchiya K, Ogata T, Imase R, Yagi T, Mishima Y, Jinta T, Saito K, Taki R, Isogai S, Jinn Y, Kawasaki T, Natsume I, Miyashita Y, Takagiwa J, Ishiwata N, Chiaki T, Kishi M, Tsukada Y, Yamasaki M, Inase N. Treatment of Asthma in the Elderly: Questionnaire Survey in Japan. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/ijcm.2017.84023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Takeuchi T, Nakano H, Uehara T, Tsuchiya K. Effect of dissolved gas on mechanical property of sheath material of mineral insulated cables under high temperature and pressure water. Nuclear Materials and Energy 2016. [DOI: 10.1016/j.nme.2016.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tsuchiya K, Kubota K, Ohbuchi K, Kaneko A, Ohno N, Mase A, Matsushima H, Yamamoto M, Miyano K, Uezono Y, Kono T. Transient receptor potential ankyrin 1 agonists improve intestinal transit in a murine model of postoperative ileus. Neurogastroenterol Motil 2016; 28:1792-1805. [PMID: 27284001 DOI: 10.1111/nmo.12877] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 05/10/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Stimulation of transient receptor potential ankyrin 1 (TRPA1), which abundantly expressed in enterochromaffin cells (ECC), has been reported to exert apparently contradictory results in in vitro contractility and in vivo gastrointestinal (GI) transit evaluations. The pharmaceutical-grade Japanese traditional medicine daikenchuto (TU-100) has been reported to be beneficial for postoperative ileus (POI) and accelerate GI transit in animals and humans. TU-100 was recently shown to increase intestinal blood flow via stimulation of TRPA1 in the epithelial cells of the small intestine (SI). METHODS The effects of various TRPA1 agonists on motility were examined in a manipulation-induced murine POI model, in vitro culture of SI segments and an ECC model cell line, RIN-14B. KEY RESULTS Orally administered TRPA1 agonists, aryl isothiocyanate (AITC) and cinnamaldehyde (CA), TU-100 ingredients, [6]-shogaol (6S) and γ-sanshool (GS), improved SI transit in a POI model. The effects of AITC, 6S and GS but not CA were abrogated in TRPA1-deficient mice. SI segments show periodic peristaltic motor activity whose periodicity disappeared in TRPA1-deficient mice. TU-100 augmented the motility. AITC, CA and 6S increased 5-HT release from isolated SI segments and the effects of all these compounds except for CA were lost in TRPA1-deficient mice. 6S and GS induced a release of 5-HT from RIN-14B cells in a dose- and TRPA1-dependent manner. CONCLUSIONS & INFERENCES Intraluminal TRPA1 stimulation is a potential therapeutic strategy for GI motility disorders. Further investigation is required to determine whether 5-HT and/or ECC are involved in the effect of TRPA1 on motility.
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Affiliation(s)
- K Tsuchiya
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - K Kubota
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - K Ohbuchi
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - A Kaneko
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - N Ohno
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - A Mase
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - H Matsushima
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - M Yamamoto
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - K Miyano
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, Japan
| | - Y Uezono
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, Japan
| | - T Kono
- Laboratory of Pathophysiology & Therapeutics, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.,Center for Clinical and Biomedical Research, Sapporo Higashi Tokushukai Hospital, Sapporo, Japan
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Nishimura Y, Kodaira T, Ito Y, Tsuchiya K, Murakami Y, Saitoh J, Akimoto T, Nakata K, Yoshimura M, Teshima T, Toshiyasu T, Ota Y, Ishikawa K, Shimizu H, Minemura T, Ishikura S, Shibata T, Nakamura K, Shibata T, Hiraoka M. A Phase II Study of Intensity Modulated Radiation Therapy (IMRT) with Chemotherapy for Locoregionally Advanced Nasopharyngeal Cancer (NPC) (JCOG1015): Acute Toxicity and Treatment Compliance. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tsuchiya K, Katase S, Hachiya J, Shiokawa Y. Volume-rendered 3D display of MR angiograms in the diagnosis of cerebral arteriovenous malformations. Acta Radiol 2016; 44:675-9. [PMID: 14616214 DOI: 10.1080/02841850312331287729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: To determine whether application of a volume-rendered display of 3D time-of-flight (TOF) MR angiography could assist the diagnosis of cerebral arteriovenous malformations (AVMs). Material and Methods: Volume-rendered 3D images of postcontrast 3D time-of-flight MR angiography were compared with conventional angiograms in 12 patients. The correlation between the 3D images and the operative findings was also analyzed in 5 patients. Results: The 3D-displayed images showed all of the feeders and drainers in 10 and 9 patients, respectively. In all patients, the nidus was three-dimensionally visualized. In 3 patients with hematomas, the relationship between the hematoma and the AVM was well demonstrated. The 3D images corresponded well with the operative findings in the 5 patients. Conclusion: This method is of help in assessing the relationship between the components of an AVM as well as that between an AVM and an associated hematoma.
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Affiliation(s)
- K Tsuchiya
- Department of Radiology, Kyorin University School of Medicine, Shinkawa, Mitaka, Tokyo, Japan.
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Kubota A, Suguro T, Sekiguchi M, Ikata S, Takeuchi S, Tsuchiya K. AB0060 Histopathological Change Caused by Biological Treatment in Rheumatoid Arthritis Synovial Tissue. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3173] [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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Chiba S, Tsuchiya K, Akashi T, Ishizuka M, Okamoto T, Furusawa H, Tateishi T, Kishino M, Miyazaki Y, Tateishi U, Takemura T, Inase N. Chronic Hypersensitivity Pneumonitis With a Usual Interstitial Pneumonia-Like Pattern. Chest 2016; 149:1473-81. [DOI: 10.1016/j.chest.2015.12.030] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/22/2015] [Accepted: 12/29/2015] [Indexed: 11/28/2022] Open
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Chiba S, Tsuchiya K, Nukui Y, Sema M, Tamaoka M, Sumi Y, Miyazaki Y, Inase N. Interstitial changes in asthma-COPD overlap syndrome. Clin Respir J 2016; 11:1024-1031. [PMID: 26833590 DOI: 10.1111/crj.12461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 12/12/2015] [Accepted: 01/26/2016] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Asthma-COPD overlap syndrome (ACOS) is the widely recognized syndrome of asthma and COPD coexisting together. Cigarette smoking is a known risk factor for ACOS and is reported to be associated with interstitial lung diseases (ILDs). Subclinical ILDs have been frequently detected in smokers' lungs by radiological and pathological examinations. This finding raises the possibility that unrecognized mild interstitial changes take place in lungs with ACOS. OBJECTIVES We sought to determine whether interstitial changes were present in the lungs of patients with ACOS and to characterize the clinical features of ACOS with interstitial changes. METHODS Thirty patients with ACOS were enrolled in the study (26 men and 4 women, mean age 70.1 years). Interstitial changes in the lungs were estimated by high-resolution computed tomography (HRCT). Clinical findings and airway wall thickness on HRCT were assessed retrospectively and compared between ACOS patients with and without interstitial changes. RESULTS Interstitial changes were found in seven patients (23.3%) with ACOS who had HRCT. The age and smoking amount were significantly higher in ACOS with interstitial changes than in ACOS without interstitial changes. ACOS with interstitial changes tended to have a higher rate of fungal sensitisation. Multivariate analysis showed pack-years were significantly related to the presence of interstitial changes. Airway walls assessed by HRCT were significantly thicker in ACOS with interstitial changes than in ACOS without interstitial changes. CONCLUSIONS The ACOS patients with interstitial changes were heavier smokers and had thicker airway walls on HRCT compared to the ACOS patients without interstitial changes.
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Affiliation(s)
- Sahoko Chiba
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Kimitake Tsuchiya
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Yoshihisa Nukui
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Manabu Sema
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Meiyo Tamaoka
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Yuki Sumi
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Naohiko Inase
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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Suhara K, Miyazaki Y, Okamoto T, Ishizuka M, Tsuchiya K, Inase N. Fragmented gelsolins are increased in rheumatoid arthritis-associated interstitial lung disease with usual interstitial pneumonia pattern. Allergol Int 2016; 65:88-95. [PMID: 26666486 DOI: 10.1016/j.alit.2015.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 08/06/2015] [Accepted: 08/06/2015] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Rheumatoid arthritis-associated interstitial lung disease (RA-ILD) occurs in 10%-30% of patients with RA, and interstitial lung disease (ILD) is associated with increased mortality in up to 10% of patients with RA. The pathogenesis of RA-ILD is virtually unknown. The aim of this study is to investigate the proteins related to UIP pattern by comparing to OP pattern in RA-ILD using proteome analysis of bronchoalveolar lavage fluid (BALF). METHODS Proteomic differences in BALF were compared between the UIP pattern and OP pattern by examining BALF from 5 patients with the UIP pattern and 7 patients with the OP pattern by two-dimensional gel electrophoresis and mass spectrometry. RESULTS In individual comparisons of BALF samples, the levels of the protein gelsolin and Ig kappa chain C region were significantly higher in the UIP pattern than in the OP pattern. In contrast, the levels of α-1 antitrypsin, CRP, haptoglobin β, and surfactant protein A (isoform number 5) were all significantly higher in the OP pattern than in the UIP pattern. Gelsolin was cleaved into two fragments, a C-terminal half and N-terminal half, and the levels of both were significantly higher in the UIP pattern than in the OP pattern. CONCLUSIONS Fragmented gelsolins may be associated with the pathogenesis of fibrosis in RA-ILD.
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Affiliation(s)
- Kozo Suhara
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Tsukasa Okamoto
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masahiro Ishizuka
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kimitake Tsuchiya
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Naohiko Inase
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan
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Nishikawa Y, Yasuda K, Okamoto S, Ito Y, Mori T, Onimaru R, Shiga T, Tsuchiya K, Watanabe S, Takeuchi W, Katoh N, Kuge Y, Tamaki N, Shirato H. The Voxel-based Analysis of FMISO-PET Image in Patients With Local Recurrence of Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1405] [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: 10/22/2022]
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Igarashi H, Yamashita H, Sugimoto D, Hanaoka Y, Nakamura H, Tsuchiya K, Okada M, Ogata I. MON-PP049: Malnutrition among Patients with Peptic Ulcer Hemorrhage and Simple Predictors of Delayed Nutritional Recovery. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30481-7] [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: 10/23/2022]
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Tsutsui T, Miyazaki Y, Okamoto T, Tateishi T, Furusawa H, Tsuchiya K, Fujie T, Tamaoka M, Sakashita H, Sumi Y, Inase N. Antigen avoidance tests for diagnosis of chronic hypersensitivity pneumonitis. Respir Investig 2015; 53:217-24. [PMID: 26344611 DOI: 10.1016/j.resinv.2015.04.003] [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] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 03/31/2015] [Accepted: 04/21/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Chronic hypersensitivity pneumonitis (HP) is induced by the inhalation of specific antigens. Patients with chronic HP may be able to improve their prognosis by avoiding these antigens. Chronic HP is often difficult to distinguish from idiopathic interstitial pneumonias (IIPs). OBJECTIVE This study was performed to find out how antigen avoidance tests contribute to the diagnosis of chronic HP. METHODS A retrospective analysis was conducted on 265 patients who underwent 2-week antigen avoidance tests between April 2002 and March 2012. The patients were classified into the following categories: acute HP, chronic HP, collagen vascular disease-associated interstitial pneumonia (CVD-IP), lung dominant connective tissue disease (LD-CTD), and IIPs. The following seven clinical parameters were evaluated: vital capacity, alveolar-arterial oxygen pressure difference, Krebs von den Lungen-6, surfactant protein-D, white blood cell count, C-reactive protein, and body temperature. These parameters were compared between the chronic HP group and a control group consisting of CVD-IP, LD-CTD, and IIPs. RESULTS One-hundred and ninety-six patients with chronic HP and 43 control subjects were evaluated. All clinical parameters improved significantly in the chronic HP group but showed no significant changes in the control group. Four of the parameters changed significantly compared with the control group. Diagnostic criteria established using these data had a sensitivity of 51.0% and a specificity of 80.7%. CONCLUSIONS It was difficult to diagnose chronic HP based solely on 2-week antigen avoidance tests; however, improved clinical parameters among patients supported the diagnosis of HP.
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Affiliation(s)
- Toshiharu Tsutsui
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Tsukasa Okamoto
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Tomoya Tateishi
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Haruhiko Furusawa
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Kimitake Tsuchiya
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Toshihide Fujie
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Meiyo Tamaoka
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Hiroyuki Sakashita
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Yuki Sumi
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
| | - Naohiko Inase
- Department of Respiratory Medicine, Tokyo Medical and Dental University, Japan.
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Kaneko C, Nitta N, Tsuchiya K, Watanabe S, Nitta-Seko A, Ohta S, Otani H, Sonoda A, Murata K, Shiomi M. MRI study of atherosclerotic plaque progression using ultrasmall superparamagnetic iron oxide in Watanabe heritable hyperlipidemic rabbits. Br J Radiol 2015; 88:20150167. [PMID: 26083261 DOI: 10.1259/bjr.20150167] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The purpose of this study was to evaluate plaque progression by using MRI with ultrasmall superparamagnetic iron oxide (USPIO) and by histopathological studies. METHODS We divided 12 Watanabe heritable hyperlipidemic (WHHL) rabbits into 4 groups based on their age (3, 9, 14 and 26 months) and injected them intravenously with 0.8 mmol (Fe) kg(-1) of USPIO (size, 32 nm; concentration, 15 mg dl(-1)). On the fifth post-injection day, they were again given an intravenous injection with 40 μmol kg(-1) of the same USPIO, and MR angiography (MRA) was performed. The signal-to-noise ratio (SNR) in regions of interest in the wall of the upper abdominal aorta was calculated on coronal images. Specimens from the same level of the aorta were subjected to iron staining and RAM-11 immunostaining and used for histopathological study. For statistical analysis of the MRA and histopathological findings, we used analysis of variance [Tukey's honest significant difference (HSD) test]. RESULTS In 9-month-old rabbits, the SNR was significantly lower than in rabbits of the other ages (p < 0.01), and the area of RAM-11 (DAKO Corporation, Glostrup, Denmark) and iron uptake in the aortic wall was significantly larger (RAM-11, p < 0.01; iron, p < 0.05). These areas were the smallest in 3-month-old rabbits. CONCLUSION Histopathologically, the number of macrophages was the greatest in 9-month-old rabbits. Our findings indicate that the SNR on MRI scans reflects the number of macrophages in the aortic wall of WHHL rabbits. ADVANCES IN KNOWLEDGE USPIO-enhanced MRI visualized the accumulation of macrophages in early atherosclerotic plaques of WHHL rabbits in the course of natural progression.
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Affiliation(s)
- C Kaneko
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - N Nitta
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - K Tsuchiya
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - S Watanabe
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - A Nitta-Seko
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - S Ohta
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - H Otani
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - A Sonoda
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - K Murata
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - M Shiomi
- 2 Institute for Experimental Animals, Kobe University School of Medicine, Kobe, Hyogo, Japan
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Tsuchiya K, Shioya T. Practical method using superposition of individual magnetic fields for initial arrangement of undulator magnets. Rev Sci Instrum 2015; 86:043305. [PMID: 25933853 DOI: 10.1063/1.4918793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have developed a practical method for determining an excellent initial arrangement of magnetic arrays for a pure-magnet Halbach-type undulator. In this method, the longitudinal magnetic field distribution of each magnet is measured using a moving Hall probe system along the beam axis with a high positional resolution. The initial arrangement of magnetic arrays is optimized and selected by analyzing the superposition of all distribution data in order to achieve adequate spectral quality for the undulator. We applied this method to two elliptically polarizing undulators (EPUs), called U#16-2 and U#02-2, at the Photon Factory storage ring (PF ring) in the High Energy Accelerator Research Organization (KEK). The measured field distribution of the undulator was demonstrated to be excellent for the initial arrangement of the magnet array, and this method saved a great deal of effort in adjusting the magnetic fields of EPUs.
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Affiliation(s)
- K Tsuchiya
- Accelerator Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba 1-1 Oho, Japan
| | - T Shioya
- Accelerator Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba 1-1 Oho, Japan
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Asamiya Y, Yajima A, Shimizu S, Otsubo S, Tsuchiya K, Nitta K. Associations between the levels of sclerostin, phosphate, and fibroblast growth factor-23 and treatment with vitamin D in hemodialysis patients with low intact PTH level. Osteoporos Int 2015; 26:1017-28. [PMID: 25366373 DOI: 10.1007/s00198-014-2934-8] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 09/15/2014] [Indexed: 12/30/2022]
Abstract
UNLABELLED Serum sclerostin levels could be closely associated with serum phosphate and fibroblast growth factor-23 levels in hemodialysis patients with low intact parathyroid hormone (PTH) levels. Further study is required to indicate whether these close associations are present in patients with spontaneously low PTH levels without any vitamin D treatment. INTRODUCTION Intact parathyroid hormone (iPTH) is involved in the interaction between sclerostin and phosphate/fibroblast growth factor-23 (FGF23) in animal models. However, their relationship in patients on hemodialysis (HD) is unclear. METHODS Data of 102 HD patients were collected regarding clinical and laboratory parameters and mineral bone disorder medications. The patients were divided into subgroups according to the iPTH level (A, <70 pg/mL; B, 70-150 pg/mL; C, 150-300 pg/mL; and D, ≥ 300 pg/mL). RESULTS The sclerostin level was significantly and positively correlated with phosphate and log of FGF23 levels in subgroups A, B, and combined A and B. Multiple linear regression analysis in the combined A and B subgroup revealed that male sex (t = 3.24, P = 0.01; 95% confidence interval [CI] 11.78 to 50.43) and phosphate level (t = 2.13, P = 0.04; 95% CI, 1.08 to 36.91) were independent factors for serum sclerostin level. The log of serum FGF23 level (t = 1.90, P = 0.06, 95% CI -1.85 to 63.50) appeared to be an important factor for serum sclerostin level. The frequency of patients using vitamin D treatment was not significantly different among subgroups A (93.1%), B (88.0%), C (85.2%), and D (90.5%). CONCLUSION Serum sclerostin levels were associated with serum phosphate and FGF23 levels in patients with low iPTH levels. Further study is required to indicate whether these close associations are present in patients with spontaneously low iPTH levels without vitamin D treatment.
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Affiliation(s)
- Y Asamiya
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, 8-1 Kawada-chou, Shinjuku-ku, Tokyo, 162-8666, Japan,
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Suhara K, Miyazaki Y, Okamoto T, Yasui M, Tsuchiya K, Inase N. Utility of immunological tests for bird-related hypersensitivity pneumonitis. Respir Investig 2015; 53:13-21. [PMID: 25542599 DOI: 10.1016/j.resinv.2014.08.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 07/09/2014] [Accepted: 08/11/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND The reaction of specific antibodies and sensitized lymphocytes to antigens is important in hypersensitivity pneumonitis (HP). However, there are no known studies evaluating the utility of the lymphocyte proliferation test (LPT) or specific antibodies to avian antigens in diagnosing bird-related HP. In this study, we examined the sensitivity and specificity of these two tests. METHODS Patients with acute bird-related HP (n=10), chronic bird-related HP (n=35), acute summer-type HP (n=14), and other interstitial pneumonia (IP) (n=76) were evaluated. The optimal cutoff values were determined by receiver operating curve (ROC) analyses of specific antibodies in serum and bronchoalveolar lavage fluid (BALF), and by conducting the LPT on mononuclear cells in peripheral blood and BALF. RESULTS The sensitivity and specificity of the antibodies were 80-100% and 92-100% in acute bird-related HP, and 26-79% and 73-93% in chronic bird-related HP, respectively. The sensitivity and specificity of the LPT were 50-100% and 100% in acute bird-related HP, and 46% and 91% in chronic bird-related HP, respectively. CONCLUSIONS Specific antibodies and the LPT are quite useful for diagnosing acute bird-related HP. The presence of specific antibodies in BALF and the results of LPT with peripheral blood mononuclear cells are particularly useful for diagnosing chronic bird-related HP.
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Affiliation(s)
- Kozo Suhara
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
| | - Tsukasa Okamoto
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Makito Yasui
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Kimitake Tsuchiya
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Naohiko Inase
- Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
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Uetsuji Y, Hiramori T, Nishiguchi N, Kuramae H, Tsuchiya K. Performance enhancement of a valveless pump driven by a noble piezoelectric composite actuator. Int J CMEM 2014. [DOI: 10.2495/cmem-v2-n4-392-402] [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: 11/09/2022] Open
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Yamada S, Tsuchiya K, Bradley WG, Law M, Winkler ML, Borzage MT, Miyazaki M, Kelly EJ, McComb JG. Current and emerging MR imaging techniques for the diagnosis and management of CSF flow disorders: a review of phase-contrast and time-spatial labeling inversion pulse. AJNR Am J Neuroradiol 2014; 36:623-30. [PMID: 25012672 DOI: 10.3174/ajnr.a4030] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This article provides an overview of phase-contrast and time-spatial labeling inversion pulse MR imaging techniques to assess CSF movement in the CNS under normal and pathophysiologic situations. Phase-contrast can quantitatively measure stroke volume in selected regions, notably the aqueduct of Sylvius, synchronized to the heartbeat. Judicious fine-tuning of the technique is needed to achieve maximal temporal resolution, and it has limited visualization of CSF motion in many CNS regions. Phase-contrast is frequently used to evaluate those patients with suspected normal pressure hydrocephalus and a Chiari I malformation. Correlation with successful treatment outcome has been problematic. Time-spatial labeling inversion pulse, with a high signal-to-noise ratio, assesses linear and turbulent motion of CSF anywhere in the CNS. Time-spatial labeling inversion pulse can qualitatively visualize whether CSF flows between 2 compartments and determine whether there is flow through the aqueduct of Sylvius or a new surgically created stoma. Cine images reveal CSF linear and turbulent flow patterns.
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Affiliation(s)
- S Yamada
- From the Department of Neurosurgery (S.Y.), Toshiba Rinkan Hospital, Sagamihara, Kanagawa, Japan
| | - K Tsuchiya
- Department of Radiology (K.T.), Kyorin University, Mitaka, Tokyo, Japan
| | - W G Bradley
- Department of Radiology (W.G.B.), University of California, San Diego, San Diego, California
| | - M Law
- Department of Neuroradiology (M.L.), University of Southern California, Los Angeles, California
| | - M L Winkler
- Steinberg Diagnostic Imaging Center (M.L.W.), Las Vegas, Nevada
| | - M T Borzage
- Division of Neuroradiology (M.T.B.), Department of Radiology, Institute for Maternal Fetal Health, Children's Hospital Los Angeles, Los Angeles, California Department of Biomedical Engineering (M.T.B.), USC Viterbi School of Engineering, University of Southern California, Los Angeles, California
| | - M Miyazaki
- Toshiba Medical Research Institute (M.M.), Vernon Hills, Illinois
| | - E J Kelly
- Toshiba America Medical Systems Inc (E.J.K.), Tustin, California
| | - J G McComb
- Division of Neurosurgery (J.G.M.), Children's Hospital Los Angeles, Los Angeles, California Department of Neurological Surgery (J.G.M.), Keck School of Medicine, University of Southern California, Los Angeles, California
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