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Tabuchi Y, Yasui K, Ogawa H, Onoe T, Maki S, Asakura H, Nishimura T, Takahashi T, Murayama S, Harada H. The Incidence of Severe Radiation-Induced Lymphopenia during Chemoradiotherapy for Stage Ⅲ Non-Small Cell Lung Cancer: A Comparative Study of Proton Versus Photon-Based Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e62. [PMID: 37785857 DOI: 10.1016/j.ijrobp.2023.06.783] [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] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To investigate the incidence of severe radiation-induced lymphopenia (SRL) and the survival in patients with stage Ⅲ non-small cell lung cancer treated with concurrent chemoradiotherapy with passive scattering proton beam (PSPT) or photon-based radiotherapy (XRT) including 3D-CRT and IMRT. MATERIALS/METHODS We conducted a retrospective cohort study including 355 patients who received definitive concurrent chemoradiotherapy with PSPT (n = 38) or XRT (n = 317) at our institution between January 2010 and December 2020. SRL during concurrent chemoradiotherapy was defined as absolute lymphocyte counts (ALCs) of <500 cells/mm3. Propensity score matching (PSM) analysis was performed to adjust for the patient characteristics between the PSPT and XRT groups. Propensity scores were calculated using age, sex, PS (0-1 vs. 2), primary tumor location (upper/middle vs. lower lobe), pathology (Adeno vs. Others), PTV volume, ALCs at pretreatment, year of treatment (before vs. after July 2018, when durvalumab approved in Japan), and platinum-based chemotherapy regimen (CDDP based vs. CBDCA based). After PSM, the incidence of SRL and the overall survival (OS) were analyzed. RESULTS The GTV and PTV volumes were significantly lower in the PSPT group than in the XRT group (median, 57 vs. 103 mm3; p < 0.05, 322 vs. 399 mm3; p < 0.05, respectively). ALCs at pretreatment were significantly lower in the PSPT group than in the XRT group (median, 1531 vs. 1718 cells/mm3; p < 0.05). SRL was observed in 275 patients (87%) in the XRT group and 27 patients (71%) in the PSPT group (p < 0.05). After PSM, PSPT significantly reduced the incidence of SRL compared to XRT (68.6 % vs. 88.6 %, p < 0.05), and the patients without SRL may have better 3-year OS than those with SRL (71.1 % vs. 55.3 %; p = 0.062). CONCLUSION Compared with XRT, PSPT significantly reduced the incidence of SRL, and the patients without SRL had a good prognosis.
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Affiliation(s)
- Y Tabuchi
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - K Yasui
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - H Ogawa
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - T Onoe
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - S Maki
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - H Asakura
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - T Nishimura
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - T Takahashi
- Division of Thoracic Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - S Murayama
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - H Harada
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
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Takizawa T, Kito S, Ogawa H, Nemoto H, Taguchi K, Suda Y, Yasui K, Arai Y, Watanabe S, Najima Y, Doki N, Murofushi K. Dosimetric Evaluation of Targets and Organs at Risk in Dose Escalation Study for Total Marrow and Lymphoid Irradiation. Int J Radiat Oncol Biol Phys 2023; 117:e724. [PMID: 37786110 DOI: 10.1016/j.ijrobp.2023.06.2235] [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] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Total marrow and lymphoid irradiation (TMLI) delivers radiation dose to the bone marrow and lymph nodal region while reducing the dose to non-target organs. We conducted a dose-escalation study of TMLI to improve treatment outcomes while reducing OAR doses using intensity-modulated radiation therapy. However, this dose escalation strategy may cause increasing risk of recurrence and adverse events because of dose uniformity compromises of the target. We hypothesized that the homogeneity index (HI) could become worse with increased target's dose while maintaining reduced OAR doses for the nine patients enrolled in the TMLI phase Ⅰ clinical trial. MATERIALS/METHODS Nine patients treated with TMLI using a treatment delivery system from September 2019 to August 2021 were included. The prescribed doses were 14 Gy/6 fr, 16 Gy/6 fr, and 18 Gy/6 fr twice daily for 3 days, with three patients allocated each prescription. Bone marrow, lymph nodal region, spleen, testis, brain, and liver were designated as targets. The bone marrow was divided into eight parts (see Table); an individual PTV margin was added to each structure. We intended to deliver the D80% prescription dose for PTV. For the brain and liver, the prescribed dose was 12 Gy in consideration of function preservation. Lenses, oral cavity, parotid glands, lungs, heart, esophagus, stomach, kidneys, intestines, and breasts were defined as OAR. Targets were evaluated with HI that was calculated using the formula HI = (D2%-D98%)/D50%, based on ICRU report 83. For OARs, Dmax, D2%, D10%, and mean dose constraint were evaluated. RESULTS The table lists HI for the PTV_ALL and each target. The HI of PTV_ALL rose with increasing prescription dose and was highest at 18 Gy. The highest HI was 0.632 for PTV_Rib at 18 Gy, and the lowest HI was 0.045 for PTV_testis at 14 Gy. OAR Dose constraints were achieved in all patients. The average OAR doses in all cases for lenses, oral cavity, parotid glands, lungs, heart, esophagus, intestines, kidneys, and breast were 4.7±0.80, 4.4±0.51, 6.7±0.48, 7.6±0.22, 7.8±0.19, 6.7±0.18, 7.4±1.12, 6.9±0.96, and 14.7 Gy, respectively. The Dmax of the lenes, D2% of the esophagus, and D10% of the stomach were 7.2 ± 1.09, 11.5 ± 0.47, and 10.9 ± 0.98 Gy, respectively. CONCLUSION In the TMLI phase I clinical trial, we evaluated the dose uniformity to the targets and the OAR dose constraints. Although the HI for PTV_ALL worsened with increasing prescription dose, compliance with OAR dose constraints was achieved in all patients.
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Affiliation(s)
- T Takizawa
- Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - S Kito
- Department of Radiation Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - H Ogawa
- Department of Radiation Oncology, Miyagi Cancer Center, Miyagi, Japan
| | - H Nemoto
- University of Yamanashi, Chuo, Japan
| | - K Taguchi
- Department of Radiation Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Y Suda
- Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - K Yasui
- Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Y Arai
- Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - S Watanabe
- Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Y Najima
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - N Doki
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - K Murofushi
- Department of Radiation Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
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Asao T, Yasui K, Ota N, Shioi M, Hayashi K, Maki S, Ito Y, Onoe T, Ogawa H, Asakura H, Murayama S, Nishimura T, Takahashi T, Ohde Y, Harada H. PO-1202 Proton Beam Therapy for Stage I and Lymph Node-Negative Stage IIA Non-Small Cell Lung Cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07653-2] [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: 10/20/2022]
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Ota N, Hirata M, Yasui K, Yamamoto A, Maki S, Ito Y, Onoe T, Ogawa H, Asakura H, Murayama S, Deguchi S, Mitsuya K, Harada H, Hayashi N, Nishimura T. LINAC-Based Stereotactic Irradiation For Patients With Up To Ten Brain Metastases. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Nagasaka T, Tanioka H, Nyuya A, Katata Y, Okawaki M, Yamamura M, Kawai T, Yasui K, Toshima T, Mori Y, Umeda Y, Tsuruta A, Ueno T, Yamaguchi Y. Poor prognosis of hypermutant colorectal cancer with KRAS mutations: A retrospective analysis of 1,052 Japanese colorectal cancer patients without treatment of immuno-checkpoint inhibitors. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.260] [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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Yasui K, Katagiri H, Onoe T, Ogawa H, Harada H, Asakura H, Maki S, Nakura A, Ito Y, Hirata M, Murayama S, Honda Y, Miyagi M, Wasa J, Murata H, Takahashi M, Nishimura T. PO-0880 Validation of a predictive model for survival in patients receiving radiotherapy for bone metastases. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31300-3] [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: 10/26/2022]
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Toshima T, Nyuya A, Umeda U, Yasui K, Yoshida K, Fujiwara T, Goel A, Nagasaka T. Liquid biopsy has a potential to predict the colorectal cancer patients with destiny for recurrence after curative surgery. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy431.043] [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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Onoe T, Murayama S, Harada H, Ito Y, Yasui K, Nakura A, Maki S, Ogawa H, Asakura H, Nishimura T, Katagiri H, Takahashi M, Ishida Y. Efficacy of Proton Beam Radiation Therapy and Chemotherapy in Patients with Ewing Sarcoma Family of Tumors of the Trunk. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.916] [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: 11/25/2022]
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Takahashi H, Morizane C, Nomura S, Okano N, Tsuda M, Mizuno N, Satake H, Tsuji K, Shioji K, Ishii H, Yasui K, Miyakawa H, Ishiguro A, Ogura T, Ueno M, Ikeda A, Terashima T, Ikeda M, Okusaka T, Furuse J. Phase II clinical trial of gemcitabine plus oxaliplatin combination therapy (GEMOX) in patients with advanced pancreatic adenocarcinoma with a family history of pancreatic/breast/ovarian/prostate cancer or personal history of breast/ovarian/prostate cancer (FABRIC study). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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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Morozumi S, Kondo A, Huang Y, Kawakami Y, Uematsu T, Oiwa K, Miyajima M, Kato S, Yasui K. Diagnosis and prognosis of esus in a municipal emergency hospital in Japan. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1766] [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: 11/27/2022]
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Uematsu T, Huang Y, Kondo A, Kawakami Y, Oiwa K, Miyajima M, Morozumi S, Kato S, Yasui K. The characteristics of in-hospital ischemic strokes in a municipal emergency hospital in Japan. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Horimoto Y, Hayashi E, Ito Y, Iida A, Hibino H, Inagaki A, Tajima T, Fukagawa K, Okita K, Yasui K, Nanbu I, Anan C, Uematsu N, Katada E, Matsukawa N, Kabasawa H. Dopaminergic performances in patients with parkinsonism — A combination study of dopamine transporter SPECT, dopamine synthesis and receptor pet. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.733] [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: 11/26/2022]
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Yasui K, Nagasaka T, Nyuya A, Toshima T, Kawai T, Shigeyasu K, Yano S, Mori Y, Haraga J, Nakamura K, Umeda Y, Goel A, Fujiwara T. Gene expression signatures in BRAF V600E mutant colorectal cancer in relation to WNT signaling cascade. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.075] [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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Nyuya A, Haraga J, Nagasaka T, Nakamura K, Haruma T, Nishida T, Yasui K, Fujiwara T, Goel A, Masuyama H. POLE mutations and MSI were positive predictive factors for progression free survival in endometrial cancer patients at the risk of recurrence. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx372.014] [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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Abe K, Yuda S, Yasui K, Oba N, Okubo A, Kobayashi C, Yanagihara N, Kawano Y, Nagahara D, Teramoto A, Nagoya S, Yamashita T, Takahashi S, Miura T. P5246Preoperative soleal vein diameter determined by ultrasonography is an independent predictor of deep vein thrombosis regardless of the type of major orthopedic surgery. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ikeda M, Shimizu S, Sato T, Morimoto M, Kojima Y, Inaba Y, Hagihara A, Kudo M, Nakamori S, Kaneko S, Sugimoto R, Tahara T, Ohmura T, Yasui K, Sato K, Ishii H, Furuse J, Okusaka T. Reply to the Letter to the editor 'Sorafenib plus hepatic arterial infusion chemotherapy with cisplatin versus Sorafenib for advanced hepatocellular carcinoma: randomized phase II trial' by Fornaro et al. Ann Oncol 2017; 28:903-904. [PMID: 28137738 DOI: 10.1093/annonc/mdx013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Indexed: 11/12/2022] Open
Affiliation(s)
- M Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - S Shimizu
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - T Sato
- Department of Biostatistics, Kyoto University School of Public Health, Kyoto, Japan
| | - M Morimoto
- Department of Hepatobiliary and Pancreatic Medical Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Y Kojima
- Department of Gastroenterology, National Center for Global Health and Medicine Center Hospital, Tokyo, Japan
| | - Y Inaba
- Department of Diagnostic and Interventional Radiology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - A Hagihara
- Department of Hepatology, Osaka City University Hospital, Osaka, Japan
| | - M Kudo
- Department of Gastroenterology and Hepatology, Kinki University School of Medicine, Osaka, Japan
| | - S Nakamori
- Department of Hepatobiliary and Pancreatic Surgery, Osaka National Hospital, Osaka, Japan
| | - S Kaneko
- Department of Gastroenterology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - R Sugimoto
- Department of Hepato-Biliary-Pancreatology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - T Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - T Ohmura
- Department of Gastroenterology, Sapporo Kosei General Hospital, Sapporo, Japan
| | - K Yasui
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Sato
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - H Ishii
- Clinical Research Center, Shikoku Cancer Center, Matsuyama, Japan
| | - J Furuse
- Department of Medical Oncology, Kyorin University, Tokyo, Japan
| | - T Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
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Okamura I, Matsuyama N, Yasui K, Hirayama F, Ikeda T. Clinical utility of the basophil activation test for analysis of allergic transfusion reactions: a pilot study. Vox Sang 2017; 112:114-121. [PMID: 28070919 DOI: 10.1111/vox.12471] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/11/2016] [Accepted: 10/12/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVES In previous studies, we demonstrated that the basophil-activating effects of supernatants found in residual-transfused platelet concentrates (PC-SNs) on whole blood basophils in cases of allergic transfusion reactions (ATRs) could be assessed by the basophil activation test (BAT) in terms of allergen/IgE dependency. However, in these studies, the basophils were derived from third-party healthy volunteers. In this study, we performed BAT using patients' own blood basophils to analyse ATRs. MATERIALS AND METHODS The BAT was performed in two cases of severe ATRs using residual PC-SNs and the patients' own basophils in the presence and absence of dasatinib, an inhibitor of IgE-mediated basophil activation. RESULTS In both cases, PC-SNs exhibited basophil-activating activity against the patients' basophils, but not against basophils from third-party healthy volunteers. In addition, basophil activation was inhibited in the presence of dasatinib, indicating that the basophils were activated in an allergen/IgE-dependent manner. Of note, the basophils in Case 2, but not in Case 1, were activated by PC-SNs from some unrelated non-haemolytic transfusion reaction cases. CONCLUSION This pilot study indicates that the BAT may be useful in clarifying the causal relationship between ATRs and transfused blood as well as in elucidating the mechanisms behind ATRs considering the allergen/IgE-dependent pathway.
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Affiliation(s)
- I Okamura
- Division of Hematology and Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
| | - N Matsuyama
- Japanese Red Cross Kinki Block Blood Center, Ibaraki, Osaka, Japan
| | - K Yasui
- Japanese Red Cross Kinki Block Blood Center, Ibaraki, Osaka, Japan
| | - F Hirayama
- Japanese Red Cross Kinki Block Blood Center, Ibaraki, Osaka, Japan
| | - T Ikeda
- Division of Hematology and Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
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Nagasaka T, Nyuya A, Toshima T, Kawai T, Yasui K, Kimura K, Mori Y, Umeda Y, Kishimoto H, Fujiwara T. 53P Update results of a novel assay for the detection of methylated CpGs from sputum to screen patients with lung cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw574.026] [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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Hashimoto S, Sugie C, Iwata H, Ogino H, Omachi C, Yasui K, Mizoe J, Shibamoto Y. Potentially Lethal Damage Repair and Sublethal Damage Repair After Proton Beam Irradiation: Comparison With X-ray Treatment. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2058] [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: 11/27/2022]
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Bruggeman PJ, Kushner MJ, Locke BR, Gardeniers JGE, Graham WG, Graves DB, Hofman-Caris RCHM, Maric D, Reid JP, Ceriani E, Fernandez Rivas D, Foster JE, Garrick SC, Gorbanev Y, Hamaguchi S, Iza F, Jablonowski H, Klimova E, Kolb J, Krcma F, Lukes P, Machala Z, Marinov I, Mariotti D, Mededovic Thagard S, Minakata D, Neyts EC, Pawlat J, Petrovic ZL, Pflieger R, Reuter S, Schram DC, Schröter S, Shiraiwa M, Tarabová B, Tsai PA, Verlet JRR, von Woedtke T, Wilson KR, Yasui K, Zvereva G. Plasma–liquid interactions: a review and roadmap. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/0963-0252/25/5/053002] [Citation(s) in RCA: 917] [Impact Index Per Article: 114.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ikeda M, Shimizu S, Sato T, Morimoto M, Kojima Y, Inaba Y, Hagihara A, Kudo M, Nakamori S, Kaneko S, Sugimoto R, Tahara T, Ohmura T, Yasui K, Sato K, Ishii H, Furuse J, Okusaka T. Sorafenib plus hepatic arterial infusion chemotherapy with cisplatin versus sorafenib for advanced hepatocellular carcinoma: randomized phase II trial. Ann Oncol 2016; 27:2090-2096. [PMID: 27573564 PMCID: PMC5091321 DOI: 10.1093/annonc/mdw323] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [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: 04/24/2016] [Accepted: 08/04/2016] [Indexed: 12/13/2022] Open
Abstract
In a randomized phase II study of sorafenib plus hepatic arterial infusion chemotherapy with cisplatin in comparison with sorafenib alone in patients with advanced hepatocellular carcinoma, it yielded favorable overall survival when compared with sorafenib alone. This is the first report of its effectiveness in relation to the overall survival in comparison with that of sorafenib alone in patients with advanced hepatocellular carcinoma. Background Sorafenib (Sor) is acknowledged as a standard therapy for advanced hepatocellular carcinoma (HCC). This trial was conducted to evaluate the effect of addition of hepatic arterial infusion chemotherapy with cisplatin (SorCDDP) to Sor for the treatment of advanced HCC. Patients and methods We conducted a multicenter open-labeled randomized phase II trial in chemo-naïve patients with advanced HCC with Child-Pugh scores of 5–7. Eligible patients were randomly assigned 2:1 to receive SorCDDP (sorafenib: 400 mg bid; cisplatin: 65 mg/m2, day 1, every 4–6 weeks) or Sor (400 mg bid). The primary end point was overall survival. Results A total of 108 patients were randomized (Sor, n = 42; SorCDDP, n = 66). The median survival in the Sor and SorCDDP arms were 8.7 and 10.6 months, respectively [stratified hazard ratio (95% confidence interval), 0.60 (0.38–0.96), P = 0.031]. The median time to progression and the response rate were, respectively, 2.8 months and 7.3% in the Sor arm and 3.1 months and 21.7% in the SorCDDP arm. The adverse events were more frequent in the SorCDDP arm than in the Sor arm, but well-tolerated. Conclusion SorCDDP yielded favorable overall survival when compared with Sor in patients with advanced HCC. Clinical Trial registration UMIN-CTR (http://www.umin.ac.jp/ctr/index-j.htm), identification number: UMIN000005703.
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Affiliation(s)
- M Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa
| | - S Shimizu
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa
| | - T Sato
- Department of Biostatistics, Kyoto University School of Public Health, Kyoto
| | - M Morimoto
- Department of Hepatobiliary and Pancreatic Medical Oncology, Kanagawa Cancer Center, Yokohama
| | - Y Kojima
- Department of Gastroenterology, National Center for Global Health and Medicine Center Hospital, Tokyo
| | - Y Inaba
- Department of Diagnostic and Interventional Radiology, Aichi Cancer Center Hospital, Nagoya
| | - A Hagihara
- Department of Hepatology, Osaka City University Hospital, Osaka
| | - M Kudo
- Department of Gastroenterology and Hepatology, Kinki University School of Medicine, Osaka
| | - S Nakamori
- Department of Hepatobiliary and Pancreatic Surgery, Osaka National Hospital, Osaka
| | - S Kaneko
- Department of Gastroenterology, Kanazawa University Hospital, Kanazawa
| | - R Sugimoto
- Department of Hepato-Biliary-Pancreatology, National Hospital Organization Kyushu Cancer Center, Fukuoka
| | - T Tahara
- Department of Gastroenterology, Saiseikai Utsunomiya Hospital, Tochigi
| | - T Ohmura
- Department of Gastroenterology, Sapporo Kosei General Hospital, Sapporo
| | - K Yasui
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto
| | - K Sato
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto
| | - H Ishii
- Clinical Research Center, Shikoku Cancer Center, Matsuyama
| | - J Furuse
- Department of Medical Oncology, Kyorin University, Tokyo
| | - T Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
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22
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Yasui K, Shoda Y, Suyama T, Numa Y, Amanouchi Y, Kawamoto K. Preoperative Embolization for Meningioma Using Lipiodol. Interv Neuroradiol 2016; 4 Suppl 1:63-6. [DOI: 10.1177/15910199980040s111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/1998] [Accepted: 08/25/1998] [Indexed: 11/16/2022] Open
Abstract
Four patient (3 males, 1 female) with meningioma treated by preoperative embolization using lipiodol since January 1997 were included in this study. Almost the same procedure was performed on them; superselective catheterization into feeders from the external carotid artery, slow infusion of lipiodol, and proximal occlusion with liquid coils. Duration between embolization and direct surgery varied (5–13 days). Three meningiomas resected 5 days after the embolization were successful but one resected after 13 days needed transfusion. Post operative complications were seen in two patients, one is lockjaw due to ischaemia of the temporal muscles, and the other is transient dilatation of perifocal oedema. The ischaemic effect and safety of lipiodol as embolic material are discussed.
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Affiliation(s)
- K. Yasui
- Dept. of Neurosurgery, Kansai Medical University; Osaka
| | - Y. Shoda
- Dept. of Neurosurgery, Kansai Medical University; Osaka
| | - T. Suyama
- Dept. of Neurosurgery, Kansai Medical University; Osaka
| | - Y. Numa
- Dept. of Neurosurgery, Kansai Medical University; Osaka
| | | | - K. Kawamoto
- Dept. of Neurosurgery, Kansai Medical University; Osaka
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23
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Chang W, Koba Y, Katayose T, Hariu M, Yasui K, Saitoh H. SU-F-T-175: Absorbed Dose Measurement Using Radiophotoluminescent Glass Dosimeter in Therapeutic Proton Beam. Med Phys 2016. [DOI: 10.1118/1.4956312] [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: 11/07/2022] Open
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24
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Miyoshi N, Kundu SK, Tuziuti T, Yasui K, Shimada I, Ito Y. Combination of Sonodynamic and Photodynamic Therapy against Cancer Would Be Effective through Using a Regulated Size of Nanoparticles. Nanosci Nanoeng 2016; 4:1-11. [PMID: 27088115 PMCID: PMC4827930 DOI: 10.13189/nn.2016.040101] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Nanoparticles have been used for many functional materials in nano-sciences and photo-catalyzing surface chemistry. The titanium oxide nanoparticles will be useful for the treatment of tumor by laser and/or ultrasound as the sensitizers in nano-medicine. We have studied the combination therapy of photo- and sono-dynamic therapies in an animal tumor model. Oral-administration of two sensitizers titanium oxide, 0.2%-TiO2 nanoparticles for sono-dynamic and 1 mM 5-aminolevulinic acid for photodynamic therapies have resulted in the best combination therapeutic effects for the cancer treatment. Our light microscopic and Raman spectroscopic studies revealed that the titanium nanoparticles were distributed inside the blood vessel of the cancer tissue (1-3 μm sizes). Among these nanoparticles with a broad size distribution, only particular-sized particles could penetrate through the blood vessel of the cancer tissue, while other particles may only exhibit the side effects in the model mouse. Therefore, it may be necessary to separate the optimum size particles. For this purpose we have separated TiO2 nanoparticles by countercurrent chromatography with a flat coiled column (1.6 mm ID) immersed in an ultrasonic bath (42 KHz). Separation was performed with a two-phase solvent system composed of 1-butanol-acetic acid-water at a volume ratio of 4:1:5 at a flow rate of 0.1 ml/min. Countercurrent chromatographic separation yielded fractions containing particle aggregates at 31 and 4400 nm in diameter.
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Affiliation(s)
- N. Miyoshi
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui, Japan
| | - S. K. Kundu
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui, Japan
- Department of Pharmacy, Jahangirnagar University, Bangladesh
| | - T. Tuziuti
- National Institute of Advanced Industrial Science and Technology (NAIST), Japan
| | - K. Yasui
- National Institute of Advanced Industrial Science and Technology (NAIST), Japan
| | - I. Shimada
- Department of Forensic Medicine, Faculty of Medicine, University of Fukui, Japan
| | - Y. Ito
- Laboratory of Bioseparation Technology, Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, USA
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25
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Rashiddy Wong F, Ahmed Ali A, Yasui K, Hashim AM. Seed/Catalyst-Free Growth of Gallium-Based Compound Materials on Graphene on Insulator by Electrochemical Deposition at Room Temperature. Nanoscale Res Lett 2015; 10:943. [PMID: 26055478 PMCID: PMC4451189 DOI: 10.1186/s11671-015-0943-y] [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] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 05/15/2015] [Indexed: 06/04/2023]
Abstract
We report the growth of gallium-based compounds, i.e., gallium oxynitride (GaON) and gallium oxide (Ga2O3) on multilayer graphene (MLG) on insulator using a mixture of ammonium nitrate (NH4NO3) and gallium nitrate (Ga(NO3)3) by electrochemical deposition (ECD) method at room temperature (RT) for the first time. The controlling parameters of current density and electrolyte molarity were found to greatly influence the properties of the grown structures. The thicknesses of the deposited structures increase with the current density since it increases the chemical reaction rates. The layers grown at low molarities of both solutions basically show grain-like layer with cracking structures and dominated by both Ga2O3 and GaON. Such cracking structures seem to diminish with the increases of molarities of one of the solutions. It is speculated that the increase of current density and ions in the solutions helps to promote the growth at the area with uneven thicknesses of graphene. When the molarity of Ga(NO3)3 is increased while keeping the molarity of NH4NO3 at the lowest value of 2.5 M, the grown structures are basically dominated by the Ga2O3 structure. On the other hand, when the molarity of NH4NO3 is increased while keeping the molarity of Ga(NO3)3 at the lowest value of 0.8 M, the GaON structure seems to dominate where their cubic and hexagonal arrangements are coexisting. It was found that when the molarities of Ga(NO3)3 are at the high level of 7.5 M, the grown structures tend to be dominated by Ga2O3 even though the molarity of NH4NO3 is made equal or higher than the molarity of Ga(NO3)3. When the grown structure is dominated by the Ga2O3 structure, the deposition process became slow or unstable, resulting to the formation of thin layer. When the molarity of Ga(NO3)3 is increased to 15 M, the nanocluster-like structures were formed instead of continuous thin film structure. This study seems to successfully provide the conditions in growing either GaON-dominated or Ga2O3-dominated structure by a simple and low-cost ECD. The next possible routes to convert the grown GaON-dominated structure to either single-crystalline GaN or Ga2O3 as well as Ga2O3-dominated structure to single-crystalline Ga2O3 structure have been discussed.
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Affiliation(s)
- Freddawati Rashiddy Wong
- />Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
| | - Amgad Ahmed Ali
- />Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
| | - Kanji Yasui
- />Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2137 Japan
| | - Abdul Manaf Hashim
- />Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
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Kawai T, Nagasaka T, Takehara Y, Umeda Y, Fuji T, Taniguchi F, Kimura K, Toshima T, Yasui K, Mori Y, Kishimoto H, Toyooka S, Goel A, Fujiwara T. 1111 Non-invasive detection of methylated CpGs from sputum can predict patients with lung cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30493-2] [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: 11/30/2022]
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27
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Fuji T, Nagasaka T, Umeda Y, Mori Y, Kawai T, Taniguchi F, Kimura K, Toshima T, Yasui K, Goel A, Fujiwara T. 819 Detection of circulating Ago2-miRNAs predict tumor response to anti-tumor therapies. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30408-7] [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: 11/24/2022]
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28
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Taniguchi F, Nagasaka T, Takehara Y, Umeda Y, Mori Y, Kawai T, Fuji T, Toshima T, Kimura K, Yasui K, Goel A, Fujiwara T. 2021 Systematic genetic analysis of familial adenomatous polyposis and lynch syndrome. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30944-3] [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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29
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Kuroishi A, Yasui K, Matsukura H, Tani Y, Furuta RA. Comparison of neutralization profiles for anti-HCV reactive donor samples with or without detectable HCV RNA. Vox Sang 2015; 109:319-26. [PMID: 26095725 DOI: 10.1111/vox.12301] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 04/23/2015] [Accepted: 04/23/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVES At Japanese Red Cross (JRC) Blood Centers, all donated blood is screened for hepatitis C virus (HCV) by serological and nucleic acid amplification testing. Donor plasma that tested reactive for anti-HCV by serological test is disqualified even if the donor tests negative for HCV RNA. These test results reflect both true-positive results because of past HCV infection and false-positive results because the cross-reactivity of plasma IgG, which current testing methods are unable to distinguish. To characterize these antibody test results, we examined the neutralizing activity of these plasma samples. MATERIAL AND METHODS Donor plasma samples that tested reactive for anti-HCV by serological test but negative for HCV RNA (n = 43) were analysed for determining their neutralizing activities measured by the inhibition of the cellular entry of pseudoparticles harbouring HCV envelope glycoproteins (HCVpp). RESULTS Strong and broad neutralizing activities against HCVpp entry similar to the samples that tested reactive for anti-HCV serological test and positive for HCV RNA (considered to be derived from individuals with chronic HCV infection) were observed in three of 43 plasma samples from donors who tested anti-HCV reactive but HCV RNA negative. CONCLUSION By examining the neutralizing activities of plasma samples, we identified individuals with a past HCV infection from those in whom we were unable to confirm HCV infection according to the current testing algorithms of JRC, which do not perform anti-HCV confirmatory tests.
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Affiliation(s)
- A Kuroishi
- Japanese Red Cross Kinki Block Blood Center, Osaka, Japan
| | - K Yasui
- Japanese Red Cross Kinki Block Blood Center, Osaka, Japan
| | - H Matsukura
- Japanese Red Cross Kinki Block Blood Center, Osaka, Japan
| | - Y Tani
- Japanese Red Cross Kinki Block Blood Center, Osaka, Japan
| | - R A Furuta
- Japanese Red Cross Kinki Block Blood Center, Osaka, Japan
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30
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Yamakawa T, Hayashi N, Hamano H, Yasui K, Kato H. SU-E-T-743: The Simple Monitor Unit Calculation for Irregular Field in Passive Proton Beam. Med Phys 2015. [DOI: 10.1118/1.4925107] [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: 11/07/2022] Open
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31
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Hamano H, Hayashi N, Yamakawa T, Yasui K, Kato H. SU-E-T-439: Fundamental Verification of Respiratory-Gated Spot Scanning Proton Beam Therapy. Med Phys 2015. [DOI: 10.1118/1.4924800] [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: 11/07/2022] Open
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32
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Nakamura D, Yamazaki T, Yasui K, Egawa A, Hayashi N, Uetani M, Ashizawa K. EP-1169 Outcomes of stereotactic body radiotherapy for intrapulmonary recurrence after lung cancer surgery. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41161-2] [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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33
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Ichie T, Suzuki D, Yasui K, Takahashi H, Matsuda M, Hayashi H, Sugiura Y, Sugiyama T. The association between risk factors and time of onset for thrombocytopenia in Japanese patients receiving linezolid therapy: a retrospective analysis. J Clin Pharm Ther 2015; 40:279-84. [PMID: 25732525 DOI: 10.1111/jcpt.12260] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 02/06/2015] [Indexed: 11/29/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Linezolid (LZD) is an oxazolidinone antibiotic that is active against Gram-positive bacteria including methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci. The major adverse effect related to its use in humans is reversible myelosuppression, which mostly manifests as thrombocytopenia. This retrospective study was conducted to identify risk factors that might contribute towards the development of thrombocytopenia due to intravenous administration of LZD. METHOD Patients who were administered LZD between January 2008 and March 2013 were included. Thrombocytopenia was defined as a decrease in platelet count of ≥10 × 10(4) cell/μL from baseline or of ≥30%. RESULTS A total of 47 patients were included in this study. These patients were divided into two groups: 22 patients (46·8%) were assigned to a non-thrombocytopenia group and 25 patients (53·2%) to a thrombocytopenia group. Multivariate logistic regression analysis revealed significant intergroup differences in duration of LZD treatment [odds ratio (OR) = 1·278; 95% confidence interval (CI) = 1·068-1·529; P = 0·007] and white blood cell (WBC) count (>12000 cells/μL; OR = 10·399; 95% CI = 1·667-64·882; P = 0·012). WHAT IS NEW AND CONCLUSIONS This finding suggests that duration of LZD treatment and WBC count (>12000 cells/μL) are risk factors associated with thrombocytopenia resulting from LZD administration.
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Affiliation(s)
- T Ichie
- Department of Pharmacy, Kainan Hospital, Aichi, Japan; Laboratory of Pharmacy Practice and Social Science, Gifu Pharmaceutical University, Gifu, Japan
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34
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Kurashige T, Shimamura M, Yasui K, Mitsutake N, Matsuse M, Nakashima M, Minami S, Eguchi S, Nagayama Y. Studies on expression of aldehyde dehydrogenase in normal and cancerous tissues of thyroids. Horm Metab Res 2015; 47:194-9. [PMID: 25181420 DOI: 10.1055/s-0034-1387770] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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] [Indexed: 10/24/2022]
Abstract
Recently published articles have reported the controversial data regarding expression of aldehyde dehydrogenase isozyme 1A1 (ALDH1A1), a potential candidate marker for normal and cancer stem cells (CSCs), in thyroid tissues. These data prompted us to re-evaluate expression of ALDH1A1 in normal and cancerous thyroid tissues by 2 different means. The first method was immunohistochemistry with 2 different anti-ALDH1A1 antibodies from distinct companies. Following validating the integrity of these 2 antibodies by Western blotting with ALDH-expressing and nonexpressing cancer cell lines and immunohistochemistry with breast and colon tissues, we report here significant and comparable expression of ALDH1A1 in both normal and cancerous thyroid tissues with both antibodies. Next, relative expression levels of ALDH isozymes were evaluated by reverse transcription-polymerase chain reaction (RT-PCR), revealing that ALDH1A1 was the most highly expressed isozyme followed by ALDH9A1 and relative expression patterns of isozymes were very similar in normal and cancerous tissues. All these data demonstrate that thyroid cells of normal and cancer origins do express ALDH1A1 and to a lesser extent 9A1. Further study will be necessary to study functional significance of ALDH1A1 in the function and behaviors of thyroid normal and cancer stem cells.
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Affiliation(s)
- T Kurashige
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - M Shimamura
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - K Yasui
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - N Mitsutake
- Department of Radiation Medical Science, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - M Matsuse
- Department of Radiation Medical Science, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - M Nakashima
- Department of Tumor and Diagnostic Pathology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - S Minami
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Nagayama
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
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35
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Jayah NA, Yahaya H, Mahmood MR, Terasako T, Yasui K, Hashim AM. High electron mobility and low carrier concentration of hydrothermally grown ZnO thin films on seeded a-plane sapphire at low temperature. Nanoscale Res Lett 2015; 10:7. [PMID: 25852306 PMCID: PMC4312313 DOI: 10.1186/s11671-014-0715-0] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 12/26/2014] [Indexed: 05/17/2023]
Abstract
Hydrothermal zinc oxide (ZnO) thick films were successfully grown on the chemical vapor deposition (CVD)-grown thick ZnO seed layers on a-plane sapphire substrates using the aqueous solution of zinc nitrate dehydrate (Zn(NO3)2). The use of the CVD ZnO seed layers with the flat surfaces seems to be a key technique for obtaining thick films instead of vertically aligned nanostructures as reported in many literatures. All the hydrothermal ZnO layers showed the large grains with hexagonal end facets and were highly oriented towards the c-axis direction. Photoluminescence (PL) spectra of the hydrothermal layers were composed of the ultraviolet (UV) emission (370 to 380 nm) and the visible emission (481 to 491 nm), and the intensity ratio of the former emission (I UV) to the latter emission (I VIS) changed, depending on both the molarity of the solution and temperature. It is surprising that all the Hall mobilities for the hydrothermal ZnO layers were significantly larger than those for their corresponding CVD seed films. It was also found that, for the hydrothermal films grown at 70°C to 90°C, the molarity dependences of I UV/I VIS resembled those of mobilities, implying that the mobility in the film is affected by the structural defects. The highest mobility of 166 cm(2)/Vs was achieved on the hydrothermal film with the carrier concentration of 1.65 × 10(17) cm(-3) grown from the aqueous solution of 40 mM at 70°C.
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Affiliation(s)
- Nurul Azzyaty Jayah
- />Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur, 54100 Malaysia
| | - Hafizal Yahaya
- />Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur, 54100 Malaysia
| | - Mohamad Rusop Mahmood
- />Faculty of Electrical Engineering, Universiti Teknologi MARA, Shah Alam, Selangor 40450 Malaysia
| | - Tomoaki Terasako
- />Graduate School of Science and Engineering, Ehime University, Ehime, 790-8577 Japan
| | - Kanji Yasui
- />Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2188 Japan
| | - Abdul Manaf Hashim
- />Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur, 54100 Malaysia
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Ahmad NF, Yasui K, Hashim AM. Seed/catalyst-free growth of zinc oxide on graphene by thermal evaporation: effects of substrate inclination angles and graphene thicknesses. Nanoscale Res Lett 2015; 10:10. [PMID: 25852308 PMCID: PMC4311902 DOI: 10.1186/s11671-014-0716-z] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 12/26/2014] [Indexed: 05/07/2023]
Abstract
A seed/catalyst-free growth of ZnO on graphene by thermal evaporation of Zn in the presence of O2 gas was further studied. The effects of substrate positions and graphene thicknesses on the morphological, structural, and optical properties were found to be very pronounced. By setting the substrate to be inclined at 90°, the growth of ZnO nanostructures, namely, nanoclusters and nanorods, on single-layer (SL) graphene was successfully realized at temperatures of 600°C and 800°C, respectively. For the growth on multilayer (ML) graphene at 600°C with an inclination angle of 90°, the grown structures show extremely thick and continuous cluster structures as compared to the growth with substrate's inclination angle of 45°. Moreover, the base of nanorod structures grown at 800°C with an inclination angle of 90° also become thicker as compared to 45°, even though their densities and aspect ratios were almost unchanged. Photoluminescence (PL) spectra of the grown ZnO structures were composed of the UV emission (378-386 nm) and the visible emission (517-550 nm), and the intensity ratio of the former emission (I UV) to the latter emission (I VIS) changed, depending on the temperature. The structures grown at a low temperature of 600°C show the highest value of I UV/I VIS of 16.2, which is almost two times higher than the structures grown on SL graphene, indicating fewer structural defects. The possible growth mechanism was proposed and described which considered both the nucleation and oxidation processes. From the results obtained, it can be concluded that temperature below 800°C, substrate position inclined at 90° towards the gas flow, and ML graphene seems to be preferable parameters for the growth of ZnO structures by thermal evaporation because these factors can be used to overcome the problem of graphene's oxidation that takes place during the growth.
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Affiliation(s)
- Nurul Fariha Ahmad
- />Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
| | - Kanji Yasui
- />Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2137 Japan
| | - Abdul Manaf Hashim
- />Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
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Ghazali NM, Yasui K, Hashim AM. Synthesis of gallium nitride nanostructures by nitridation of electrochemically deposited gallium oxide on silicon substrate. Nanoscale Res Lett 2014; 9:685. [PMID: 25593562 PMCID: PMC4273690 DOI: 10.1186/1556-276x-9-685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 12/09/2014] [Indexed: 06/04/2023]
Abstract
Gallium nitride (GaN) nanostructures were successfully synthesized by the nitridation of the electrochemically deposited gallium oxide (Ga2O3) through the utilization of a so-called ammoniating process. Ga2O3 nanostructures were firstly deposited on Si substrate by a simple two-terminal electrochemical technique at a constant current density of 0.15 A/cm(2) using a mixture of Ga2O3, HCl, NH4OH and H2O for 2 h. Then, the deposited Ga2O3 sample was ammoniated in a horizontal quartz tube single zone furnace at various ammoniating times and temperatures. The complete nitridation of Ga2O3 nanostructures at temperatures of 850°C and below was not observed even the ammoniating time was kept up to 45 min. After the ammoniating process at temperature of 900°C for 15 min, several prominent diffraction peaks correspond to hexagonal GaN (h-GaN) planes were detected, while no diffraction peak of Ga2O3 structure was detected, suggesting a complete transformation of Ga2O3 to GaN. Thus, temperature seems to be a key parameter in a nitridation process where the deoxidization rate of Ga2O3 to generate gaseous Ga2O increase with temperature. The growth mechanism for the transformation of Ga2O3 to GaN was proposed and discussed. It was found that a complete transformation can not be realized without a complete deoxidization of Ga2O3. A significant change of morphological structures takes place after a complete transformation of Ga2O3 to GaN where the original nanorod structures of Ga2O3 diminish, and a new nanowire-like GaN structures appear. These results show that the presented method seems to be promising in producing high-quality h-GaN nanostructures on Si.
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Affiliation(s)
- Norizzawati Mohd Ghazali
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, 54100 Kuala Lumpur, Malaysia
| | - Kanji Yasui
- Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2137, Japan
| | - Abdul Manaf Hashim
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, 54100 Kuala Lumpur, Malaysia
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Ueyama A, Imura K, Kasai-Yamamoto E, Tai N, Nagira M, Shichijo M, Yasui K. Kv1.3 blockers ameliorate allergic contact dermatitis by preferentially suppressing effector memory T cells in a rat model. Clin Exp Dermatol 2014; 38:897-903. [PMID: 24252082 DOI: 10.1111/ced.12097] [Citation(s) in RCA: 9] [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] [Accepted: 10/09/2012] [Indexed: 01/02/2023]
Abstract
BACKGROUND The Kv1.3 voltage-gated potassium channel is selectively upregulated upon activation in effector memory T (TEM ) cells in inflamed tissue, and plays an important role in maintenance of T-cell activation. Although Kv1.3 blockers have been shown to ameliorate allergic contact dermatitis (ACD) in a rat model, it remains unknown whether the effect of Kv1.3 blockers on ACD is mediated by suppressing TEM cell function and/or whether naive T-cells or central memory T (TCM ) cells are influenced. AIM To analyse the detailed mechanism of Kv1.3 blockers in a rat model of ACD. METHODS We examined the effects of a Kv1.3 blocker on inflammation and production of the effector cytokine interferon (IFN)-γ in inflamed tissue in rat ACD. Single-cell suspensions were isolated from inflamed rat ears (TEM cells), and regional lymph nodes (naive T/TCM cells), and the effect of Kv1.3 blockers on anti-CD3-stimulated IFN-γ production in vitro was measured. RESULTS The Kv1.3 blocker significantly suppressed ear inflammation and IFN-γ production at the protein level in vivo. It also suppressed in vitro IFN-γ production from TEM cells from inflamed tissues, but did not suppress the function of naive T/TCM cells from lymph nodes. CONCLUSIONS We found that the Kv1.3 blocker ameliorated ACD by inhibiting TEM cell functions only, thus Kv1.3 blockers could be a potentially selective therapeutic agent for TEM cell-mediated inflammatory skin diseases without producing harmful side-effects.
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Affiliation(s)
- A Ueyama
- Innovative Drug Discovery Research Laboratories, Shionogi and Co. Ltd, Toyonaka, Japan
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Yamamoto T, Watarai Y, Goto N, Horikoshi Y, Yamada S, Yasui K, Tsujita M, Hiramitsu T, Narumi S, Katayama A, Uchida K, Kobayashi T. Encephalitis caused by human herpesvirus-6B in pancreas-after-kidney transplantation. Transpl Infect Dis 2014; 16:853-8. [PMID: 25040797 DOI: 10.1111/tid.12270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 04/12/2014] [Accepted: 05/05/2014] [Indexed: 11/30/2022]
Abstract
Human herpesvirus-6 (HHV-6) is a common pathogen among children, classically presenting with fever and rash that resolves without specific therapy. HHV-6 can be reactivated in the immunosuppressed patient. After bone marrow and solid organ transplantation, HHV-6 has been linked to various clinical syndromes, including undifferentiated febrile illness, encephalitis, myelitis, hepatitis, pneumonitis, and bone marrow suppression. However, HHV-6 encephalitis after pancreatic transplant has rarely been reported. Early diagnosis and treatment of HHV-6 encephalitis may be important for affected patients. We report the case of a 53-year-old pancreas-after-kidney transplant recipient who initially presented with high fever and confusion 3 weeks after operation. We managed to save the patient's life and preserve the pancreas graft function. We also review previously reported cases of HHV-6B encephalitis in solid organ transplant recipients.
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Affiliation(s)
- T Yamamoto
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan; Department of Transplant Immunology, Nagoya University School of Medicine, Nagoya, Japan
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Hirayama S, Takayanagi T, Fujii Y, Fujimoto R, Fujitaka S, Umezawa M, Nagamine Y, Hosaka M, Yasui K, Toshito T. TH-C-BRD-04: Beam Modeling and Validation with Triple and Double Gaussian Dose Kernel for Spot Scanning Proton Beams. Med Phys 2014. [DOI: 10.1118/1.4889602] [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: 11/07/2022] Open
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Ghazali NM, Mahmood MR, Yasui K, Hashim AM. Electrochemically deposited gallium oxide nanostructures on silicon substrates. Nanoscale Res Lett 2014; 9:120. [PMID: 24629107 PMCID: PMC3995439 DOI: 10.1186/1556-276x-9-120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 03/06/2014] [Indexed: 06/03/2023]
Abstract
We report a synthesis of β-Ga2O3 nanostructures on Si substrate by electrochemical deposition using a mixture of Ga2O3, HCl, NH4OH, and H2O. The presence of Ga3+ ions contributed to the deposition of Ga2O3 nanostructures on the Si surface with the assistance of applied potentials. The morphologies of the grown structures strongly depended on the molarity of Ga2O3 and pH level of electrolyte. β-Ga2O3 nanodot-like structures were grown on Si substrate at a condition with low molarity of Ga2O3. However, Ga2O3 nanodot structures covered with nanorods on top of their surfaces were obtained at higher molarity, and the densities of nanorods seem to increase with the decrease of pH level. High concentration of Ga3+ and OH- ions may promote the reaction of each other to produce Ga2O3 nanorods in the electrolyte. Such similar nature of Ga2O3 nanorods was also obtained by using hydrothermal process. The grown structures seem to be interesting for application in electronic and optoelectronic devices as well as to be used as a seed structure for subsequent chemical synthesis of GaN by thermal transformation method.
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Affiliation(s)
- Norizzawati Mohd Ghazali
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia
| | - Mohamad Rusop Mahmood
- Faculty of Electrical Engineering, Universiti Teknologi MARA, Shah Alam, Selangor 40450, Malaysia
| | - Kanji Yasui
- Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2137, Japan
| | - Abdul Manaf Hashim
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia
- MIMOS Berhad, Technology Park Malaysia, Kuala Lumpur 57000, Malaysia
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Aziz NSA, Mahmood MR, Yasui K, Hashim AM. Seed/catalyst-free vertical growth of high-density electrodeposited zinc oxide nanostructures on a single-layer graphene. Nanoscale Res Lett 2014; 9:95. [PMID: 24568668 PMCID: PMC3937434 DOI: 10.1186/1556-276x-9-95] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Accepted: 02/10/2014] [Indexed: 05/07/2023]
Abstract
We report the seed/catalyst-free vertical growth of high-density electrodeposited ZnO nanostructures on a single-layer graphene. The absence of hexamethylenetetramine (HMTA) and heat has resulted in the formation of nanoflake-like ZnO structure. The results show that HMTA and heat are needed to promote the formation of hexagonal ZnO nanostructures. The applied current density plays important role in inducing the growth of ZnO on graphene as well as in controlling the shape, size, and density of ZnO nanostructures. High density of vertically aligned ZnO nanorods comparable to other methods was obtained. The quality of the ZnO nanostructures also depended strongly on the applied current density. The growth mechanism was proposed. According to the growth timing chart, the growth seems to involve two stages which are the formation of ZnO nucleation and the enhancement of the vertical growth of nanorods. ZnO/graphene hybrid structure provides several potential applications in electronics and optoelectronics such as photovoltaic devices, sensing devices, optical devices, and photodetectors.
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Affiliation(s)
- Nur Suhaili Abd Aziz
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia
| | - Mohamad Rusop Mahmood
- Faculty of Electrical Engineering, Universiti Teknologi MARA, Shah Alam, Selangor 40540, Malaysia
| | - Kanji Yasui
- Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2137, Japan
| | - Abdul Manaf Hashim
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia
- MIMOS Berhad, Technology Park Malaysia, Kuala Lumpur 57000, Malaysia
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Ahmad NF, Rusli NI, Mahmood MR, Yasui K, Hashim AM. Seed/catalyst-free growth of zinc oxide nanostructures on multilayer graphene by thermal evaporation. Nanoscale Res Lett 2014; 9:83. [PMID: 24533793 PMCID: PMC3932787 DOI: 10.1186/1556-276x-9-83] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 02/05/2014] [Indexed: 05/07/2023]
Abstract
We report the seed/catalyst-free growth of ZnO on multilayer graphene by thermal evaporation of Zn in the presence of O2 gas. The effects of substrate temperatures were studied. The changes of morphologies were very significant where the grown ZnO structures show three different structures, i.e., nanoclusters, nanorods, and thin films at 600°C, 800°C, and 1,000°C, respectively. High-density vertically aligned ZnO nanorods comparable to other methods were obtained. A growth mechanism was proposed based on the obtained results. The ZnO/graphene hybrid structure provides several potential applications in electronics and optoelectronics.
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Affiliation(s)
- Nurul Fariha Ahmad
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia
| | - Nurul Izni Rusli
- School of Electrical System Engineering, Universiti Malaysia Perlis, Kuala Perlis, Perlis 02000, Malaysia
| | - Mohamad Rusop Mahmood
- Faculty of Electrical Engineering, Universiti Teknologi MARA, Shah Alam, Selangor 40450, Malaysia
| | - Kanji Yasui
- Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2137, Japan
| | - Abdul Manaf Hashim
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia
- MIMOS Berhad, Technology Park Malaysia, Kuala Lumpur 57000, Malaysia
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Amakishi E, Hayashi T, Koh Y, Matsuyama N, Ishii H, Matsukura H, Yasui K, Hirayama F. A new transfectant panel cell line-based MoAb-independent antigen capture assay system for detection of CD36 antibody. Vox Sang 2014; 106:368-71. [DOI: 10.1111/vox.12118] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 10/31/2013] [Accepted: 10/31/2013] [Indexed: 11/29/2022]
Affiliation(s)
- E. Amakishi
- Japanese Red Cross Kinki Block Blood Center; Ibaraki-City Osaka Japan
| | - T. Hayashi
- Japanese Red Cross Kinki Block Blood Center; Ibaraki-City Osaka Japan
| | - Y. Koh
- Japanese Red Cross Kinki Block Blood Center; Ibaraki-City Osaka Japan
| | - N. Matsuyama
- Japanese Red Cross Kinki Block Blood Center; Ibaraki-City Osaka Japan
| | - H. Ishii
- Japanese Red Cross Kinki Block Blood Center; Ibaraki-City Osaka Japan
| | - H. Matsukura
- Japanese Red Cross Kinki Block Blood Center; Ibaraki-City Osaka Japan
| | - K. Yasui
- Japanese Red Cross Kinki Block Blood Center; Ibaraki-City Osaka Japan
| | - F. Hirayama
- Japanese Red Cross Kinki Block Blood Center; Ibaraki-City Osaka Japan
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Aziz NSA, Nishiyama T, Rusli NI, Mahmood MR, Yasui K, Hashim AM. Seedless growth of zinc oxide flower-shaped structures on multilayer graphene by electrochemical deposition. Nanoscale Res Lett 2014; 9:337. [PMID: 25024694 PMCID: PMC4094539 DOI: 10.1186/1556-276x-9-337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 06/23/2014] [Indexed: 05/07/2023]
Abstract
A seedless growth of zinc oxide (ZnO) structures on multilayer (ML) graphene by electrochemical deposition without any pre-deposited ZnO seed layer or metal catalyst was studied. A high density of a mixture of vertically aligned/non-aligned ZnO rods and flower-shaped structures was obtained. ML graphene seems to generate the formation of flower-shaped structures due to the stacking boundaries. The nucleation of ZnO seems to be promoted at the stacking edges of ML graphene with the increase of applied current density, resulting in the formation of flower-shaped structures. The diameters of the rods/flower-shaped structures also increase with the applied current density. ZnO rods/flower-shaped structures with high aspect ratio over 5.0 and good crystallinity were obtained at the applied current densities of -0.5 and -1.0 mA/cm(2). The growth mechanism was proposed. The growth involves the formation of ZnO nucleation below 80°C and the enhancement of the growth of vertically non-aligned rods and flower-shaped structures at 80°C. Such ZnO/graphene hybrid structure provides several potential applications in sensing devices.
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Affiliation(s)
- Nur Suhaili Abd Aziz
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia
| | - Tomoya Nishiyama
- Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2137, Japan
| | - Nurul Izni Rusli
- Faculty of Engineering Technology, Universiti Malaysia Perlis, Uniciti Campus Sungai Chucuh, Padang Besar, Perlis 02100, Malaysia
| | - Mohamad Rusop Mahmood
- Faculty of Electrical Engineering, Universiti Teknologi MARA, Shah Alam, Selangor 40540, Malaysia
| | - Kanji Yasui
- Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka-machi, Nagaoka, Niigata 940-2137, Japan
| | - Abdul Manaf Hashim
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia
- MIMOS Berhad, Technology Park Malaysia, Kuala Lumpur 47000, Malaysia
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Iwata H, Ogino H, Iwana M, Shibata H, Yasui K, Ueno T, Toshito T, Omachi C, Mizoe J, Shibamoto Y. Relative Biological Effectiveness of Passive-Scattering Proton Therapy Using a Range Modulation Wheel at the Nagoya Proton Therapy Center: An In Vitro Study With 4 Cell Lines. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1699] [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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47
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Ito D, Endo K, Tsujikawa K, Hattori M, Hirayama T, Nishi R, Kawabata K, Morozumi S, Yasui K, Hasegawa Y. Evaluation of left ventricular diastolic dysfunction of acute ischemic stroke patients by transthoracic echocardiography. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.887] [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: 10/26/2022]
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Yasui K, Ono S. Increased progranulin in the skin of amyotrophic lateral sclerosis: An immunohistochemical study. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1522] [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: 11/25/2022]
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Iwana M, Iwata H, Ishikura S, Yasui K, Nagayoshi J, Nagase T, Baba F, Ogino H, Mizoe J, Shibamoto Y. Dose Prescription to 40% to 90% Isodose Lines for the Target in Stereotactic Body Radiation Therapy for Lung Tumors: Which Prescription Line Is Optimal? Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1929] [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: 10/26/2022]
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50
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Mori F, Tanji K, Kon T, Odagiri S, Hattori M, Hoshikawa Y, Kono C, Yasui K, Yokoi S, Hasegawa Y, Yoshida M, Wakabayashi K. FUS immunoreactivity of neuronal and glial intranuclear inclusions in intranuclear inclusion body disease. Neuropathol Appl Neurobiol 2012; 38:322-8. [PMID: 21883376 DOI: 10.1111/j.1365-2990.2011.01217.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AIMS Recent studies have shown that fused-in-sarcoma (FUS) protein is a component of 'neuronal' intranuclear inclusion bodies (INIBs) in the brains of patients with intranuclear inclusion body disease (INIBD). However, the extent and frequency of FUS-immunoreactive structures in INIBD are uncertain. METHODS We immunohistochemically examined the brain, spinal cord and peripheral ganglia from five patients with INIBD and five control subjects, using anti-FUS antibodies. RESULTS In controls, the nuclei of both neurones and glial cells were intensely immunolabelled with anti-FUS and neuronal cytoplasm was weakly positive for FUS. In INIBD, neuronal and glial INIBs in the brain and spinal cord were positive for FUS. FUS-positive INIBs were also found in the peripheral ganglia. The proportion of FUS-positive neuronal INIBs relative to the total number of inclusion-bearing neurones ranged from 55.6% to 83.3% (average 73.2%) and that of FUS-positive glial INIBs ranged from 45.9% to 85.7% (average 62.7%). The nucleus and cytoplasm of inclusion-bearing neurones and glial cells showed no FUS immunoreactivity. CONCLUSIONS These findings suggest that FUS is incorporated into INIBs in both neurones and glial cells and that loss of normal FUS immunoreactivity may result from reduced protein expression and/or sequestration within inclusions.
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Affiliation(s)
- F Mori
- Departments of Neuropathology Neuroanatomy, Cell Biology and Histology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
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