151
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Yamamura J, Kamigaki S, Tsujie M, Fujita J, Osato H, Higashi C, Kanaizumi H, Tanaka Y, Hamada M, Shinzaki W, Hasimoto Y, Komoike Y. Response to primary treatment for first recurrence independently influences survival of patients with hormone receptor-positive, HER2-negative breast cancer: A multicenter study of 236 recurrent metastatic patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy272.332] [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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152
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Fujiwara H, Tateishi K, Kato H, Nakatsuka T, Yamamoto K, Tanaka Y, Ijichi H, Takahara N, Mizuno S, Kogure H, Matsubara S, Nakai Y, Koike K. Isocitrate dehydrogenase 1 mutation sensitizes intrahepatic cholangiocarcinoma to the BET inhibitor JQ1. Cancer Sci 2018; 109:3602-3610. [PMID: 30156013 PMCID: PMC6215870 DOI: 10.1111/cas.13784] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 05/22/2018] [Revised: 08/17/2018] [Accepted: 08/23/2018] [Indexed: 12/11/2022] Open
Abstract
Cholangiocarcinoma is a life‐threatening disease with a poor prognosis. Although genome analysis unraveled some genetic mutation profiles in cholangiocarcinoma, it remains unknown whether such genetic abnormalities relate to the effects of anticancer drugs. Mutations in isocitrate dehydrogenase 1 and 2 (IDH1/2) are exclusively found in almost 20% of intrahepatic cholangiocarcinoma (ICC). Recently, the anticancer effects of BET inhibitors including JQ1 have been shown in various tumors. In the present study, we report that the antigrowth effect of JQ1 differs among ICC cells and IDH1 mutation sensitizes ICC cells to JQ1. RBE cells harboring IDH1 mutation was more sensitive to JQ1 than HuCCT1 or HuH28 cells with wild‐type IDH1. JQ1 induced apoptosis only in RBE cells through the upregulation of proapoptotic genes BAX and BIM. We found that the antigrowth effect was not attributed to downregulation of the MYC gene as a well‐known target of JQ1 in various cancer cells. Notably, the forced expression of mutant IDH1 successfully sensitized HuCCT1 cells to JQ1. In addition, AGI‐5198, a selective inhibitor of mutant IDH1 partially reversed the decrease in viability after JQ1 treatment and also suppressed the JQ1‐induced apoptosis in RBE cells. These data suggest that IDH1 mutation contributed to the growth inhibitory effect of JQ1 in RBE cells. Furthermore, given that the effect of mutant IDH1 was not recapitulated in glioblastoma cells, the enhancement of JQ1 sensitivity by IDH1 mutation seems to be specific for ICC cells. Our findings propose a new stratified therapeutic strategy based on IDH1 mutation in ICC.
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Affiliation(s)
- Hiroaki Fujiwara
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Keisuke Tateishi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroyuki Kato
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takuma Nakatsuka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Keisuke Yamamoto
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yasuo Tanaka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hideaki Ijichi
- Department of Clinical Nutrition Therapy, The University of Tokyo Hospital, Tokyo, Japan
| | - Naminatsu Takahara
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Suguru Mizuno
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hirofumi Kogure
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Saburo Matsubara
- Department of Gastroenterology, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Yousuke Nakai
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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153
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Hatanaka T, Naganuma A, Uehara R, Saito N, Nakano S, Kato M, Yoshida S, Hachisu Y, Tanaka Y, Yoshinaga T, Sato K, Kakizaki S. Neutrophil-to-lymphocyte and platelet-to-lymphocyte ratio predict overall survival in hepatocellular carcinoma patients with non-B, non-C cirrhosis. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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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154
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Uchihara Y, Iwata E, Papadimitriou-Olivgeri I, Herrero-Charrington D, Tanaka Y, Athanasou NA. Localised foot and ankle amyloid deposition. Pathol Res Pract 2018; 214:1661-1666. [PMID: 30173946 DOI: 10.1016/j.prp.2018.08.027] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 08/20/2018] [Accepted: 08/26/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Localised (transthyretin-associated) amyloid is commonly seen in articular/periarticular tissues of elderly individuals. Whether age-associated, amyloid deposition occurs in foot and ankle (F&A) tissues has not previously been investigated. In this study we assessed the nature and frequency of F&A amyloid deposition and determined whether it is associated with age and/or specific articular/periarticular F&A lesions. METHODS Histological sections of twenty five normal F&A articular/periarticular tissues (16-71 years) and a range of F&A lesions were stained by Congo Red. The amyloid protein was identified by immunohistochemistry and type of matrix glycosaminoglycans determined by Alcian Blue (critical electrolyte concentration) histochemistry. RESULTS Amyloid deposits were found in the joint cartilage and capsule of 3/25 normal specimens (57, 62 and 78 years). Amyloid deposits were small, contained transthyretin, and found in areas of matrix degeneration associated with the presence of highly sulphated glycosaminoglycans. In patients older than 47 years, small amyloid deposits were noted in some F&A lesions, including osteoarthritis, Charcot arthropathy, bursa, ganglion, chondrocalcinosis, gout, calcific tendonitis and Achilles tendonitis. CONCLUSION Small localised amyloid deposits in F&A tissues contain transthyretin and occur in areas of matrix degeneration associated with the presence of highly sulphated glycosaminoglycans; these deposits are age-associated and, although seen more commonly in some F&A lesions, are small and unlikely to be of pathogenic significance.
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Affiliation(s)
- Y Uchihara
- Department of Orthopaedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
| | - E Iwata
- Department of Orthopaedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
| | - I Papadimitriou-Olivgeri
- Department of Histopathology, NDORMS, University of Oxford, Nuffield Orthopaedic Centre, Oxford, OX3 7HE, UK
| | - D Herrero-Charrington
- Department of Histopathology, NDORMS, University of Oxford, Nuffield Orthopaedic Centre, Oxford, OX3 7HE, UK
| | - Y Tanaka
- Department of Orthopaedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
| | - N A Athanasou
- Department of Histopathology, NDORMS, University of Oxford, Nuffield Orthopaedic Centre, Oxford, OX3 7HE, UK.
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155
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Onishi T, Shimizu T, Akahane M, Omokawa S, Okuda A, Kira T, Inagak Y, Tanaka Y. Osteogenic extracellular matrix sheet for bone tissue regeneration. Eur Cell Mater 2018; 36:68-80. [PMID: 30069865 DOI: 10.22203/ecm.v036a06] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 01/31/2023] Open
Abstract
The application of extracellular matrix (ECM) sheets without a scaffold is not extensively reported in bone regenerative medicine. The aim of the present study was to demonstrate that an osteogenic ECM sheet (OECMS) can retain ECM integrity and growth factors to enhance bone formation in a rat non-union model. OECMS was produced from osteogenic cell sheets (OCS). Collagen and growth factor [bone morphogenetic protein 2 (BMP-2), vascular endothelial growth factors (VFGFs), basic fibroblast growth factor (bFGF) and transforming growth factor β1 (TGF-β1)] concentrations in the OECMS were quantified by enzyme-linked immunosorbent assay (ELISA). Next, hydroxyapatite (HA) constructs combined with OECMSs were implanted subcutaneously into the rats' backs to evaluate their osteoinductive capacity by histological evaluation. In addition, OECMSs were implanted in a rat femoral non-union model. 18 male Fischer 344 inbred rats were divided into OECMS and control groups. Fracture healing was evaluated by radiological and histological analyses at 2, 5 and 8 weeks and biological analysis at 8 weeks. Collagen I and growth factors were retained in the OECMSs. Osteoid formation was identified in the HA combined with OECMS at 4 weeks. Enhanced bone regeneration at the non-union of the OECMS group was confirmed at 5 and 8 weeks. Biomechanical testing revealed a significantly higher maximum bending load in the OECMS group as compared to the control group at 8 weeks. The results demonstrated that OECMS retained BMP-2 and TGF-β1 and high osteoinductive and osteoconductive capacity. As such, OECMS represents a potential new scaffold-free material for bone tissue engineering.
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Affiliation(s)
- T Onishi
- Department of Orthopaedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522,
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156
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Shigematsu T, Okayama H, Kawaguchi N, Fukuyama N, Iseki Y, Matsuda K, Tanaka Y, Hosokawa S, Kosaki T, Kawamura G, Kawada Y, Hiasa G, Yamada T, Kazatani Y, Matsuoka H. P2698A non-invasive assessment of fractional flow reserve using hybrid 13N-ammonia positron emission tomography/computed tomography coronary angiography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2698] [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)
- T Shigematsu
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - H Okayama
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - N Kawaguchi
- Ehime University Graduate School of Medicine, Radiology, Toon, Japan
| | - N Fukuyama
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Iseki
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - K Matsuda
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Tanaka
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - S Hosokawa
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - T Kosaki
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - G Kawamura
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Kawada
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - G Hiasa
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - T Yamada
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Kazatani
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - H Matsuoka
- Ehime Prefectural Central Hospital, Matsuyama, Japan
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157
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Fujiwara N, Nakagawa H, Enooku K, Kudo Y, Hayata Y, Nakatsuka T, Tanaka Y, Tateishi R, Hikiba Y, Misumi K, Tanaka M, Hayashi A, Shibahara J, Fukayama M, Arita J, Hasegawa K, Hirschfield H, Hoshida Y, Hirata Y, Otsuka M, Tateishi K, Koike K. CPT2 downregulation adapts HCC to lipid-rich environment and promotes carcinogenesis via acylcarnitine accumulation in obesity. Gut 2018; 67:1493-1504. [PMID: 29437870 PMCID: PMC6039238 DOI: 10.1136/gutjnl-2017-315193] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [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: 09/01/2017] [Revised: 01/11/2018] [Accepted: 01/12/2018] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Metabolic reprogramming of tumour cells that allows for adaptation to their local environment is a hallmark of cancer. Interestingly, obesity-driven and non-alcoholic steatohepatitis (NASH)-driven hepatocellular carcinoma (HCC) mouse models commonly exhibit strong steatosis in tumour cells as seen in human steatohepatitic HCC (SH-HCC), which may reflect a characteristic metabolic alteration. DESIGN Non-tumour and HCC tissues obtained from diethylnitrosamine-injected mice fed either a normal or a high-fat diet (HFD) were subjected to comprehensive metabolome analysis, and the significance of obesity-mediated metabolic alteration in hepatocarcinogenesis was evaluated. RESULTS The extensive accumulation of acylcarnitine species was seen in HCC tissues and in the serum of HFD-fed mice. A similar increase was found in the serum of patients with NASH-HCC. The accumulation of acylcarnitine could be attributed to the downregulation of carnitine palmitoyltransferase 2 (CPT2), which was also seen in human SH-HCC. CPT2 downregulation induced the suppression of fatty acid β-oxidation, which would account for the steatotic changes in HCC. CPT2 knockdown in HCC cells resulted in their resistance to lipotoxicity by inhibiting the Src-mediated JNK activation. Additionally, oleoylcarnitine enhanced sphere formation by HCC cells via STAT3 activation, suggesting that acylcarnitine accumulation was a surrogate marker of CPT2 downregulation and directly contributed to hepatocarcinogenesis. HFD feeding and carnitine supplementation synergistically enhanced HCC development accompanied by acylcarnitine accumulation in vivo. CONCLUSION In obesity-driven and NASH-driven HCC, metabolic reprogramming mediated by the downregulation of CPT2 enables HCC cells to escape lipotoxicity and promotes hepatocarcinogenesis.
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Affiliation(s)
- Naoto Fujiwara
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655,Corresponding Author: Hayato Nakagawa, Department of Gastroenterology, The University of Tokyo, 7-3-1, Bunkyo-ku Hongo, Tokyo, 113-8655, , Tel: +81-3-3815-5411; Fax: +81-3-3814-0021
| | - Hayato Nakagawa
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655,Corresponding Author: Hayato Nakagawa, Department of Gastroenterology, The University of Tokyo, 7-3-1, Bunkyo-ku Hongo, Tokyo, 113-8655, , Tel: +81-3-3815-5411; Fax: +81-3-3814-0021
| | - Kenichiro Enooku
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Yotaro Kudo
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Yuki Hayata
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Takuma Nakatsuka
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Yasuo Tanaka
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Ryosuke Tateishi
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Yohko Hikiba
- Division of Gastroenterology, Institute for Adult Diseases, Asahi Life Foundation 2-2-6 Nihonbashibakurocho, Chuo-ku, Tokyo 103-0002
| | - Kento Misumi
- Department of Pathology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Mariko Tanaka
- Department of Pathology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Akimasa Hayashi
- Department of Pathology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Junji Shibahara
- Department of Pathology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Masashi Fukayama
- Department of Pathology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Junichi Arita
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Kiyoshi Hasegawa
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Hadassa Hirschfield
- Division of Liver Diseases, Department of Medicine, Tisch Cancer Institute, Graduate School of Biomedical Sciences. Icahn School of Medicine at Mount Sinai, USA
| | - Yujin Hoshida
- Division of Liver Diseases, Department of Medicine, Tisch Cancer Institute, Graduate School of Biomedical Sciences. Icahn School of Medicine at Mount Sinai, USA
| | - Yoshihiro Hirata
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Motoyuki Otsuka
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Keisuke Tateishi
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
| | - Kazuhiko Koike
- Department of Gastroenterology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655
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158
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Higashi K, Nishimura T, Baba Y, Ishikawa Y, Hiramine K, Tanaka H, Nuruki N, Sonoda M, Tanaka Y. P3565Clopidorel-based antiplatelet therapy is not enough for stent patency in patients undergoing femoropopliteal arterial endovascular interventions. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3565] [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: 11/12/2022] Open
Affiliation(s)
- K Higashi
- National Hospital Organization Kagoshima Medical Center, Second Department of Cardiology, Kagoshima, Japan
| | - T Nishimura
- National Hospital Organization Kagoshima Medical Center, Second Department of Cardiology, Kagoshima, Japan
| | - Y Baba
- National Hospital Organization Kagoshima Medical Center, Second Department of Cardiology, Kagoshima, Japan
| | - Y Ishikawa
- National Hospital Organization Kagoshima Medical Center, Second Department of Cardiology, Kagoshima, Japan
| | - K Hiramine
- National Hospital Organization Kagoshima Medical Center, Second Department of Cardiology, Kagoshima, Japan
| | - H Tanaka
- National Hospital Organization Kagoshima Medical Center, Emergency Department, Kagoshima, Japan
| | - N Nuruki
- National Hospital Organization Kagoshima Medical Center, Second Department of Cardiology, Kagoshima, Japan
| | - M Sonoda
- National Hospital Organization Kagoshima Medical Center, Second Department of Cardiology, Kagoshima, Japan
| | - Y Tanaka
- National Hospital Organization Kagoshima Medical Center, Second Department of Cardiology, Kagoshima, Japan
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159
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Kawamura G, Okayama H, Kawaguchi N, Kido S, Matsuda K, Aono T, Kosaki T, Hosokawa S, Tanaka Y, Shigematsu T, Kawada Y, Hiasa G, Yamada T, Matsuoka H, Kazatani Y. P1712Diagnostic performance of coronary flow reserve ratio for the detection of coronary artery disease on 13N-ammonia positron emission tomography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1712] [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)
- G Kawamura
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - H Okayama
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - N Kawaguchi
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - S Kido
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - K Matsuda
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - T Aono
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - T Kosaki
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - S Hosokawa
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Tanaka
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - T Shigematsu
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Kawada
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - G Hiasa
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - T Yamada
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - H Matsuoka
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Kazatani
- Ehime Prefectural Central Hospital, Matsuyama, Japan
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160
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Yamamori T, Kageyama H, Tanaka Y, Takabe T. Requirement of alkanes for salt tolerance of Cyanobacteria: characterization of alkane synthesis genes from salt-sensitive Synechococcus elongatus PCC7942 and salt-tolerant Aphanothece halophytica. Lett Appl Microbiol 2018; 67:299-305. [PMID: 30039571 DOI: 10.1111/lam.13038] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 02/28/2018] [Revised: 05/25/2018] [Accepted: 06/16/2018] [Indexed: 11/28/2022]
Abstract
Cyanobacteria have been attracting great interest in the research area of biofuel production. All Cyanobacteria contain C15 -C19 hydrocarbons, but physiological roles of hydrocarbons remain to be clarified. Recently, two universal but mutually exclusive hydrocarbon production pathways in Cyanobacteria were discovered. In this study, we constructed a deletion mutant of alkane synthesis genes in fresh water cyanobacterium Synechococcus elongates PCC 7942. The mutant was incapable to produce alkanes and exhibited normal growth phenotype at low salinity. But, the mutant became salt sensitive. Overexpression of alkane synthesis genes from halotolerant Aphanothece halophytica in Synechococcus PCC7942 restored the growth defect. The alkane synthesis gene from halotolerant cyanobacterium A. halophytica was salt induced and produced a significant amount of alkanes at high salinity. These results indicate the requirement of alkanes for salt tolerance, and the alkane synthesis genes from A. halophytica could be a promising candidate for future biofuel application. SIGNIFICANCE AND IMPACT OF THE STUDY Cyanobacteria have been attracting great interest in the research area of biofuel production. All Cyanobacteria contain C15 -C19 hydrocarbons, but physiological roles of hydrocarbons remain to be clarified. In this study, it was found that the deletion mutant of alkane synthesis genes in fresh water cyanobacterium Synechococcus elongates PCC 7942 was incapable to produce alkanes and salt sensitive. The alkane synthesis gene from halotolerant cyanobacterium Aphanothece halophytica was salt induced and produced a significant amount of alkanes at high salinity. These results demonstrate the alkane synthesis genes from A. halophytica could be a promising candidate for future biofuel application.
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Affiliation(s)
- T Yamamori
- Research Institute of Meijo University, Nagoya, Japan
| | - H Kageyama
- Graduate School of Environmental and Human Sciences, Meijo University, Nagoya, Japan
| | - Y Tanaka
- Graduate School of Environmental and Human Sciences, Meijo University, Nagoya, Japan
| | - T Takabe
- Research Institute of Meijo University, Nagoya, Japan.,Graduate School of Environmental and Human Sciences, Meijo University, Nagoya, Japan
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161
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Onishi A, Tanaka Y, Morinobu A. Spontaneous remission in large-vessel vasculitis: Takayasu arteritis and paraneoplastic disorder associated with thymic carcinoma. Scand J Rheumatol 2018; 48:79-81. [DOI: 10.1080/03009742.2018.1469165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- A Onishi
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Tanaka
- Division of General Thoracic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - A Morinobu
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
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162
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Takaoka O, Mori T, Ito F, Okimura H, Kataoka H, Tanaka Y, Koshiba A, Kusuki I, Shigehiro S, Amami T, Kitawaki J. Daidzein-rich isoflavone aglycones inhibit cell growth and inflammation in endometriosis. J Steroid Biochem Mol Biol 2018; 181:125-132. [PMID: 29679753 DOI: 10.1016/j.jsbmb.2018.04.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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: 07/07/2017] [Revised: 03/17/2018] [Accepted: 04/13/2018] [Indexed: 02/06/2023]
Abstract
Endometriosis is an estrogen-dependent disease, and isoflavones interact with estrogen receptors. The purposes of this study are to investigate the in vitro and in vivo effects of daidzein-rich isoflavone aglycones (DRIAs), dietary supplements, on cellular proliferation in endometriosis. Stromal cells isolated from ovarian endometrioma (OESCs) and normal endometrium (NESCs) were cultured with DRIAs, i.e., each of the DRIA components (daidzein, genistein, or glycitein), or isoflavone glycosides (IG; DRIA precursors). A mouse model of endometriosis was established by transplanting donor-mouse uterine fragments into recipient mice. Our results showed that DRIAs (0.2-20 μM) inhibited the proliferation of OESCs (P < 0.05 for 0.2 μM; P < 0.01 for 2 and 20 μM) but not of NESCs. However, daidzein, genistein, glycitein, and IG did not inhibit their proliferation. DRIA-induced suppression was reversed by inhibition of the estrogen receptor (ER)β by an antagonist, PHTPP, or by ERβ siRNA (P < 0.05), but not by MPP, an ERα antagonist. In OESCs, DRIAs led to reduced expression of IL-6, IL-8, COX-2, and aromatase, as well as reduced aromatase activity, serum glucocorticoid-regulated kinase levels, and PGE2 levels (P < 0.05). Western blot and immunofluorescence assays revealed that DRIAs inhibited TNF-α-induced IκB phosphorylation and p65 uptake into the nuclei of OESCs. In the mouse model, a DRIA-containing feed significantly decreased the number, weight, and Ki-67 proliferative activity of endometriosis-like lesions compared to in mice fed with an IG-containing feed and the control feed (P < 0.01). In conclusion, DRIAs inhibit cellular proliferation in endometriosis, thus representing a potential therapeutic option for the management of endometriosis.
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Affiliation(s)
- O Takaoka
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan
| | - T Mori
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan.
| | - F Ito
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan
| | - H Okimura
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan
| | - H Kataoka
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan
| | - Y Tanaka
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan
| | - A Koshiba
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan
| | - I Kusuki
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan
| | - S Shigehiro
- Nichimo Biotics Co., Ltd., Tokyo, 140-0002, Japan
| | - T Amami
- Nichimo Biotics Co., Ltd., Tokyo, 140-0002, Japan
| | - J Kitawaki
- Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, 602-8566, Japan
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Begum A, Chiba R, Ishijima T, Kakikawa M, Taoka A, Pervez MR, Innomata T, Uesugi Y, Tanaka Y. Gradual Deformation of Bacterial Cell Morphology Due to the Effect of Nonthermal Atmospheric Pressure Plasma Jet-Treated Water (PTW). IEEE Trans Radiat Plasma Med Sci 2018. [DOI: 10.1109/trpms.2018.2829176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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164
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Mursawa H, Hatakeyama S, Yamamoto H, Tanaka Y, Soma O, Matsumoto T, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Saitoh H, Suzuki T, Narumi S, Ohyama C. Slow Progression of Aortic Calcification Is a Potential Benefit of Pre-emptive Kidney Transplantation. Transplant Proc 2018; 50:145-149. [PMID: 29407299 DOI: 10.1016/j.transproceed.2017.12.011] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/05/2017] [Indexed: 11/30/2022]
Abstract
PURPOSE Pre-emptive kidney transplantation (PKT) is expected to improve graft and cardiovascular event-free survival compared with standard kidney transplantation. Aortic calcification is reported to be closely associated with renal dysfunction and cardiovascular events; however, its implication in PKT recipients remains incompletely explored. This aim of this study was to evaluate whether PKT confers a protective effect on aortic calcification, renal function, graft survival, and cardiovascular event-free survival. METHODS One hundred adult patients who underwent renal transplantation between January 1996 and March 2016 at Hirosaki University Hospital and Oyokyo Kidney Research Institute were included. Among them, 19 underwent PKT and 81 patients underwent pretransplant dialysis. We retrospectively compared pretransplant and post-transplant aortic calcification index (ACI), renal function (estimated glomerular filtration rate [eGFR]), and graft and cardiovascular event-free survivals between the 2 groups. RESULTS The median age of this cohort was 45 years. Preoperative ACI was significantly lower in PKT recipients. There were no significant differences between the 2 groups regarding postoperative eGFR, graft survival, and cardiovascular event-free survival. However, the ACI progression rate (ΔACI/y) was significantly lower in PKT recipients than in those who underwent pretransplant dialysis. Higher ACI was significantly associated with poor cardiovascular event-free survival. CONCLUSIONS PKT is beneficial in that it contributes to the slow progression of after transplantation. Although we could not observe significant differences in graft and cardiovascular event-free survivals between the 2 groups, slow progression of aortic calcification showed a potential to decrease cardiovascular events in PKT recipients during long-term follow-up.
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Affiliation(s)
- H Mursawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Tanaka
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - O Soma
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Matsumoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Departments of Cardiology, Respiratory Medicine, and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Departments of Cardiology, Respiratory Medicine, and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - T Suzuki
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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165
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Hirata H, Hinoda Y, Shahryari V, Deng G, Tanaka Y, Tabatabai ZL, Dahiya R. Correction: Genistein downregulates onco-miR-1260b and upregulates sFRP1 and Smad4 via demethylation and histone modification in prostate cancer cells. Br J Cancer 2018; 119:388. [PMID: 29930252 PMCID: PMC6068093 DOI: 10.1038/s41416-018-0146-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- H Hirata
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Y Hinoda
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - V Shahryari
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - G Deng
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Y Tanaka
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - Z L Tabatabai
- Department of Pathology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA
| | - R Dahiya
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California at San Francisco, San Francisco, CA, USA.
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166
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Malla B, Ghaju Shrestha R, Tandukar S, Bhandari D, Inoue D, Sei K, Tanaka Y, Sherchand JB, Haramoto E. Validation of host-specific Bacteroidales quantitative PCR assays and their application to microbial source tracking of drinking water sources in the Kathmandu Valley, Nepal. J Appl Microbiol 2018; 125:609-619. [PMID: 29679435 DOI: 10.1111/jam.13884] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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: 12/09/2017] [Revised: 03/15/2018] [Accepted: 04/03/2018] [Indexed: 11/28/2022]
Abstract
AIMS To validate host-specific Bacteroidales assays to identify faecal-source contamination of drinking water sources in the Kathmandu Valley, Nepal. METHODS AND RESULTS A total of 54 composite faecal-source samples were collected from human sewage, ruminants, pigs, dogs, chickens and ducks, which were analysed by quantitative polymerase chain reaction using human-specific (BacHum, HF183 SYBR, gyrB and HF183 TaqMan), ruminant-specific (BacCow and BacR), pig-specific (Pig2Bac and PF163) and dog-specific assays (BacCan SYBR). The BacHum, BacR and Pig2Bac assays were judged the best performing human-specific, ruminant-specific and pig-specific assays respectively. The BacCan SYBR assay highly cross-reacted with other species, resulting in poor performance. Furthermore, these validated assays were applied to microbial source tracking (MST) of 74 drinking water samples. Out of these, 20, 12 and 4% samples were judged contaminated by human, ruminant and pig faeces respectively. Detection ratios of human and ruminant faecal markers were relatively higher in built-up and agricultural areas respectively. CONCLUSION BacHum, BacR and Pig2Bac assays were found suitable for MST and both, human and animal faecal contaminations of drinking water sources were common in the valley. SIGNIFICANCE AND IMPACT OF THE STUDY MST could be an effective tool for preparing the faecal pollution strategies as these are site specific.
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Affiliation(s)
- B Malla
- Department of Natural, Biotic and Social Environment Engineering, University of Yamanashi, Kofu, Yamanashi, Japan
| | - R Ghaju Shrestha
- Department of Natural, Biotic and Social Environment Engineering, University of Yamanashi, Kofu, Yamanashi, Japan
| | - S Tandukar
- Department of Natural, Biotic and Social Environment Engineering, University of Yamanashi, Kofu, Yamanashi, Japan
| | - D Bhandari
- Institute of Medicine, Tribhuvan University, Maharajgunj, Kathmandu, Nepal
| | - D Inoue
- Division of Sustainable Energy and Environmental Engineering, Osaka University, Suita, Osaka, Japan
| | - K Sei
- Department of Health Science, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Y Tanaka
- Department of Environmental Sciences, University of Yamanashi, Kofu, Yamanashi, Japan
| | - J B Sherchand
- Institute of Medicine, Tribhuvan University, Maharajgunj, Kathmandu, Nepal
| | - E Haramoto
- Interdisciplinary Center for River Basin Environment, University of Yamanashi, Kofu, Yamanashi, Japan
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167
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Nakano R, Ohira M, Ishiyama K, Ide K, Kobayashi T, Tahara H, Shimizu S, Arihiro K, Imamura M, Chayama K, Tanaka Y, Ohdan H. Acute Graft Rejection and Formation of De Novo Donor-Specific Antibodies Triggered by Low Cyclosporine Levels and Interferon Therapy for Recurrent Hepatitis C Infection After Liver Transplantation: A Case Report. Transplant Proc 2018; 49:1634-1638. [PMID: 28838454 DOI: 10.1016/j.transproceed.2017.05.006] [Citation(s) in RCA: 3] [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: 03/16/2017] [Accepted: 05/13/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND We report a case of acute rejection of a liver graft, together with the occurrence of de novo donor-specific antibodies (DSAs), in a 53-year-old Japanese man who had undergone deceased-donor liver transplantation. METHODS The graft rejection was triggered by low cyclosporine levels and pegylated interferon treatment for the recurrence of hepatitis C virus (HCV) infection 18 months after transplantation. Although the graft was ABO-compatible, pre-formed DSA B51 was detected; therefore, total plasma exchange was performed and intravenous rituximab (500 mg/body) was administered before transplantation. RESULTS DSA was absent 6 months after transplantation. HCV recurrence was treated with pegylated interferon-α-2a. Renal function deteriorated with this anti-HCV therapy, with serum cyclosporine levels decreasing to 50 ng/mL. A rapid virologic response was achieved, but liver function deteriorated after 3 months of anti-HCV therapy, with histologic evidence of acute cellular rejection and formation of de novo DSAs. Anti-thymocyte globulin was administered for 5 days, which led to immediate improvement in liver function. However, renal function declined, warranting hemodialysis. The patient recovered 2 months after acute rejection, although de novo DSAs persisted. CONCLUSIONS Careful immunologic monitoring may be required for patients receiving interferon therapy for HCV infection to maintain sufficient blood levels of immunosuppressive agents and to prevent acute liver graft rejection.
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Affiliation(s)
- R Nakano
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - M Ohira
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - K Ishiyama
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Ide
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Kobayashi
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Tahara
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - S Shimizu
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Arihiro
- Department of Pathology, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
| | - M Imamura
- Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - K Chayama
- Department of Gastroenterology and Metabolism, Applied Life Science, Institute of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Y Tanaka
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Ohdan
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Aharonian F, Akamatsu H, Akimoto F, Allen SW, Angelini L, Audard M, Awaki H, Axelsson M, Bamba A, Bautz MW, Blandford R, Brenneman LW, Brown GV, Bulbul E, Cackett EM, Chernyakova M, Chiao MP, Coppi PS, Costantini E, De Plaa J, De Vries CP, Den Herder JW, Done C, Dotani T, Ebisawa K, Eckart ME, Enoto T, Ezoe Y, Fabian AC, Ferrigno C, Foster AR, Fujimoto R, Fukazawa Y, Furuzawa A, Galeazzi M, Gallo LC, Gandhi P, Giustini M, Goldwurm A, Gu L, Guainazzi M, Haba Y, Hagino K, Hamaguchi K, Harrus IM, Hatsukade I, Hayashi K, Hayashi T, Hayashida K, Hiraga JS, Hornschemeier A, Hoshino A, Hughes JP, Ichinohe Y, Iizuka R, Inoue H, Inoue Y, Ishida M, Ishikawa K, Ishisaki Y, Iwai M, Kaastra J, Kallman T, Kamae T, Kataoka J, Katsuda S, Kawai N, Kelley RL, Kilbourne CA, Kitaguchi T, Kitamoto S, Kitayama T, Kohmura T, Kokubun M, Koyama K, Koyama S, Kretschmar P, Krimm HA, Kubota A, Kunieda H, Laurent P, Lee SH, Leutenegger MA, Limousin OO, Loewenstein M, Long KS, Lumb D, Madejski G, Maeda Y, Maier D, Makishima K, Markevitch M, Matsumoto H, Matsushita K, Mccammon D, Mcnamara BR, Mehdipour M, Miller ED, Miller JM, Mineshige S, Mitsuda K, Mitsuishi I, Miyazawa T, Mizuno T, Mori H, Mori K, Mukai K, Murakami H, Mushotzky RF, Nakagawa T, Nakajima H, Nakamori T, Nakashima S, Nakazawa K, Nobukawa KK, Nobukawa M, Noda H, Odaka H, Ohashi T, Ohno M, Okajima T, Oshimizu K, Ota N, Ozaki M, Paerels F, Paltani S, Petre R, Pinto C, Porter FS, Pottschmidt K, Reynolds CS, Safi-Harb S, Saito S, Sakai K, Sasaki T, Sato G, Sato K, Sato R, Sawada M, Schartel N, Serlemtsos PJ, Seta H, Shidatsu M, Simionescu A, Smith RK, Soong Y, Stawarz Ł, Sugawara Y, Sugita S, Szymkowiak A, Tajima H, Takahashi H, Takahashi T, Takeda S, Takei Y, Tamagawa T, Tamura T, Tanaka T, Tanaka Y, Tanaka YT, Tashiro MS, Tawara Y, Terada Y, Terashima Y, Tombesi F, Tomida H, Tsuboi Y, Tsujimoto M, Tsunemi H, Tsuru TG, Uchida H, Uchiyama H, Uchiyama Y, Ueda S, Ueda Y, Uno S, Urry CM, Ursino E, Watanabe S, Werner N, Wilkins DR, Williams BJ, Yamada S, Yamaguchi H, Yamaoka K, Yamasaki NY, Yamauchi M, Yamauchi S, Yaqoob T, Yatsu Y, Yonetoku D, Zhuravleva I, Zoghbi A, Terasawa T, Sekido M, Takefuji K, Kawai E, Misawa H, Tsuchiya F, Yamazaki R, Kobayashi E, Kisaka S, Aoki T. Hitomi X-ray studies of Giant Radio Pulses from the Crab pulsar. Publ Astron Soc Jpn Nihon Tenmon Gakkai 2018; 70:10.1093/pasj/psx083. [PMID: 32020916 PMCID: PMC6999749 DOI: 10.1093/pasj/psx083] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To search for giant X-ray pulses correlated with the giant radio pulses (GRPs) from the Crab pulsar, we performed a simultaneous observation of the Crab pulsar with the X-ray satellite Hitomi in the 2 - 300 keV band and the Kashima NICT radio observatory in the 1.4 - 1.7 GHz band with a net exposure of about 2 ks on 25 March 2016, just before the loss of the Hitomi mission. The timing performance of the Hitomi instruments was confirmed to meet the timing requirement and about 1,000 and 100 GRPs were simultaneously observed at the main and inter-pulse phases, respectively, and we found no apparent correlation between the giant radio pulses and the X-ray emission in either the main or inter-pulse phases. All variations are within the 2 sigma fluctuations of the X-ray fluxes at the pulse peaks, and the 3 sigma upper limits of variations of main- or inter-pulse GRPs are 22% or 80% of the peak flux in a 0.20 phase width, respectively, in the 2 - 300 keV band. The values become 25% or 110% for main or inter-pulse GRPs, respectively, when the phase width is restricted into the 0.03 phase. Among the upper limits from the Hitomi satellite, those in the 4.5-10 keV and the 70-300 keV are obtained for the first time, and those in other bands are consistent with previous reports. Numerically, the upper limits of main- and inter-pulse GRPs in the 0.20 phase width are about (2.4 and 9.3) ×10-11 erg cm-2, respectively. No significant variability in pulse profiles implies that the GRPs originated from a local place within the magnetosphere and the number of photon-emitting particles temporally increases. However, the results do not statistically rule out variations correlated with the GRPs, because the possible X-ray enhancement may appear due to a > 0.02% brightening of the pulse-peak flux under such conditions.
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Affiliation(s)
| | - Felix Aharonian
- Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland
| | - Hiroki Akamatsu
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Fumie Akimoto
- Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601
| | - Steven W. Allen
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
| | - Lorella Angelini
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Marc Audard
- Department of Astronomy, University of Geneva, ch. d’Écogia 16, CH-1290 Versoix, Switzerland
| | - Hisamitsu Awaki
- Department of Physics, Ehime University, Bunkyo-cho, Matsuyama, Ehime 790-8577
| | - Magnus Axelsson
- Department of Physics and Oskar Klein Center, Stockholm University, 106 91 Stockholm,Sweden
| | - Aya Bamba
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
- Research Center for the Early Universe, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
| | - Marshall W. Bautz
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Roger Blandford
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
| | - Laura W. Brenneman
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - Gregory V. Brown
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
| | - Esra Bulbul
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Edward M. Cackett
- Department of Physics and Astronomy, Wayne State University, 666 W. Hancock St, Detroit,MI 48201, USA
| | - Maria Chernyakova
- Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland
| | - Meng P. Chiao
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Paolo S. Coppi
- Department of Physics, Yale University, New Haven, CT 06520-8120, USA
- Department of Astronomy, Yale University, New Haven, CT 06520-8101, USA
| | - Elisa Costantini
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Jelle De Plaa
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Cor P. De Vries
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Jan-Willem Den Herder
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Chris Done
- Centre for Extragalactic Astronomy, Department of Physics, University of Durham, South Road, Durham, DH1 3LE, UK
| | - Tadayasu Dotani
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Ken Ebisawa
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Megan E. Eckart
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Teruaki Enoto
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502
- The Hakubi Center for Advanced Research, Kyoto University, Kyoto 606-8302
| | - Yuichiro Ezoe
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Andrew C. Fabian
- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK
| | - Carlo Ferrigno
- Department of Astronomy, University of Geneva, ch. d’Écogia 16, CH-1290 Versoix, Switzerland
| | - Adam R. Foster
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - Ryuichi Fujimoto
- Faculty of Mathematics and Physics, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192
| | - Yasushi Fukazawa
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | | | - Massimiliano Galeazzi
- Physics Department, University of Miami, 1320 Campo Sano Dr., Coral Gables, FL 33146, USA
| | - Luigi C. Gallo
- Department of Astronomy and Physics, Saint Mary’s University, 923 Robie Street, Halifax, NS, B3H 3C3, Canada
| | - Poshak Gandhi
- Department of Physics and Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Margherita Giustini
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Andrea Goldwurm
- Laboratoire APC, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France
- CEA Saclay, 91191 Gif sur Yvette, France
| | - Liyi Gu
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Matteo Guainazzi
- European Space Research and Technology Center, Keplerlaan 1 2201 AZ Noordwijk, The Netherlands
| | - Yoshito Haba
- Department of Physics and Astronomy, Aichi University of Education, 1 Hirosawa,Igaya-cho, Kariya, Aichi 448-8543
| | - Kouichi Hagino
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Kenji Hamaguchi
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | - Ilana M. Harrus
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | - Isamu Hatsukade
- Department of Applied Physics and Electronic Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, 889-2192
| | - Katsuhiro Hayashi
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Takayuki Hayashi
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602
| | - Kiyoshi Hayashida
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho,Toyonaka, Osaka 560-0043
| | - Junko S. Hiraga
- Department of Physics, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337
| | - Ann Hornschemeier
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Akio Hoshino
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501
| | - John P. Hughes
- Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Yuto Ichinohe
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Ryo Iizuka
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Hajime Inoue
- Meisei University, 2-1-1 Hodokubo, Hino, Tokyo 191-8506
| | - Yoshiyuki Inoue
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Manabu Ishida
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Kumi Ishikawa
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Yoshitaka Ishisaki
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Masachika Iwai
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Jelle Kaastra
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
- Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
| | - Tim Kallman
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Tsuneyoshi Kamae
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
| | - Jun Kataoka
- Research Institute for Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555
| | - Satoru Katsuda
- Department of Physics, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551
| | - Nobuyuki Kawai
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo152-8550
| | - Richard L. Kelley
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | | | - Takao Kitaguchi
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | - Shunji Kitamoto
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501
| | - Tetsu Kitayama
- Department of Physics, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510
| | - Takayoshi Kohmura
- Department of Physics, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510
| | - Motohide Kokubun
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Katsuji Koyama
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502
| | - Shu Koyama
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Peter Kretschmar
- European Space Astronomy Center, Camino Bajo del Castillo, s/n., 28692 Villanueva de la Cañada, Madrid, Spain
| | - Hans A. Krimm
- Universities Space Research Association, 7178 Columbia Gateway Drive, Columbia, MD 21046, USA
- National Science Foundation, 4201 Wilson Blvd, Arlington, VA 22230, USA
| | - Aya Kubota
- Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama, Saitama 337-8570
| | - Hideyo Kunieda
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602
| | - Philippe Laurent
- Laboratoire APC, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France
- CEA Saclay, 91191 Gif sur Yvette, France
| | - Shiu-Hang Lee
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502
| | | | | | - Michael Loewenstein
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Knox S. Long
- Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
| | - David Lumb
- European Space Research and Technology Center, Keplerlaan 1 2201 AZ Noordwijk, The Netherlands
| | - Greg Madejski
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
| | - Yoshitomo Maeda
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Daniel Maier
- Laboratoire APC, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France
- CEA Saclay, 91191 Gif sur Yvette, France
| | - Kazuo Makishima
- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Maxim Markevitch
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Hironori Matsumoto
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho,Toyonaka, Osaka 560-0043
| | - Kyoko Matsushita
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601
| | - Dan Mccammon
- Department of Physics, University of Wisconsin, Madison, WI 53706, USA
| | - Brian R. Mcnamara
- Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Missagh Mehdipour
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Eric D. Miller
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Jon M. Miller
- Department of Astronomy, University of Michigan, 1085 South University Avenue, Ann Arbor, MI 48109, USA
| | - Shin Mineshige
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502
| | - Kazuhisa Mitsuda
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Ikuyuki Mitsuishi
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602
| | - Takuya Miyazawa
- Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son Okinawa, 904-0495
| | - Tsunefumi Mizuno
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | - Hideyuki Mori
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Koji Mori
- Department of Applied Physics and Electronic Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, 889-2192
| | - Koji Mukai
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | - Hiroshi Murakami
- Faculty of Liberal Arts, Tohoku Gakuin University, 2-1-1 Tenjinzawa, Izumi-ku, Sendai, Miyagi 981-3193
| | | | - Takao Nakagawa
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Hiroshi Nakajima
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho,Toyonaka, Osaka 560-0043
| | - Takeshi Nakamori
- Faculty of Science, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata, Yamagata 990-8560
| | - Shinya Nakashima
- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Kazuhiro Nakazawa
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
| | - Kumiko K. Nobukawa
- Department of Physics, Nara Women’s University, Kitauoyanishi-machi, Nara, Nara 630-8506
| | - Masayoshi Nobukawa
- Department of Teacher Training and School Education, Nara University of Education, Takabatake-cho, Nara, Nara 630-8528
| | - Hirofumi Noda
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiazaaoba, Aoba-ku, Sendai, Miyagi 980-8578
- Astronomical Institute, Tohoku University, 6-3 Aramakiazaaoba, Aoba-ku, Sendai, Miyagi 980-8578
| | - Hirokazu Odaka
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
| | - Takaya Ohashi
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Masanori Ohno
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | - Takashi Okajima
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Kenya Oshimizu
- Department of Physics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570
| | - Naomi Ota
- Department of Physics, Nara Women’s University, Kitauoyanishi-machi, Nara, Nara 630-8506
| | - Masanobu Ozaki
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Frits Paerels
- Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA
| | - Stéphane Paltani
- Department of Astronomy, University of Geneva, ch. d’Écogia 16, CH-1290 Versoix, Switzerland
| | - Robert Petre
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Ciro Pinto
- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK
| | - Frederick S. Porter
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Katja Pottschmidt
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | | | - Samar Safi-Harb
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Shinya Saito
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501
| | - Kazuhiro Sakai
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Toru Sasaki
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601
| | - Goro Sato
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Kosuke Sato
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601
| | - Rie Sato
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Makoto Sawada
- Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258
| | - Norbert Schartel
- European Space Astronomy Center, Camino Bajo del Castillo, s/n., 28692 Villanueva de la Cañada, Madrid, Spain
| | - Peter J. Serlemtsos
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Hiromi Seta
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Megumi Shidatsu
- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Aurora Simionescu
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Randall K. Smith
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - Yang Soong
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Łukasz Stawarz
- Astronomical Observatory of Jagiellonian University, ul. Orla 171, 30-244 Kraków, Poland
| | - Yasuharu Sugawara
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Satoshi Sugita
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo152-8550
| | - Andrew Szymkowiak
- Department of Physics, Yale University, New Haven, CT 06520-8120, USA
| | - Hiroyasu Tajima
- Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601
| | - Hiromitsu Takahashi
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | - Tadayuki Takahashi
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Shiníchiro Takeda
- Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son Okinawa, 904-0495
| | - Yoh Takei
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Toru Tamagawa
- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Takayuki Tamura
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Takaaki Tanaka
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502
| | - Yasuo Tanaka
- Max Planck Institute for extraterrestrial Physics, Giessenbachstrasse 1, 85748 Garching , Germany
| | - Yasuyuki T. Tanaka
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | - Makoto S. Tashiro
- Department of Physics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570
| | - Yuzuru Tawara
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602
| | - Yukikatsu Terada
- Department of Physics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570
| | - Yuichi Terashima
- Department of Physics, Ehime University, Bunkyo-cho, Matsuyama, Ehime 790-8577
| | - Francesco Tombesi
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Astronomy, University of Maryland, College Park, MD 20742, USA
| | - Hiroshi Tomida
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Yohko Tsuboi
- Department of Physics, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551
| | - Masahiro Tsujimoto
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Hiroshi Tsunemi
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho,Toyonaka, Osaka 560-0043
| | - Takeshi Go Tsuru
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502
| | - Hiroyuki Uchida
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502
| | - Hideki Uchiyama
- Faculty of Education, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529
| | - Yasunobu Uchiyama
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501
| | - Shutaro Ueda
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Yoshihiro Ueda
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502
| | - Shiníchiro Uno
- Faculty of Health Sciences, Nihon Fukushi University , 26-2 Higashi Haemi-cho, Handa,Aichi 475-0012
| | - C. Megan Urry
- Department of Physics, Yale University, New Haven, CT 06520-8120, USA
| | - Eugenio Ursino
- Physics Department, University of Miami, 1320 Campo Sano Dr., Coral Gables, FL 33146, USA
| | - Shin Watanabe
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Norbert Werner
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
- MTA-Eötvös University Lendület Hot Universe Research Group, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
- Department of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlářská 2, Brno, 611 37, Czech Republic
| | - Dan R. Wilkins
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
| | - Brian J. Williams
- Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
| | - Shinya Yamada
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Hiroya Yamaguchi
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Kazutaka Yamaoka
- Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601
| | - Noriko Y. Yamasaki
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Makoto Yamauchi
- Department of Applied Physics and Electronic Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, 889-2192
| | - Shigeo Yamauchi
- Department of Physics, Nara Women’s University, Kitauoyanishi-machi, Nara, Nara 630-8506
| | - Tahir Yaqoob
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | - Yoichi Yatsu
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo152-8550
| | - Daisuke Yonetoku
- Faculty of Mathematics and Physics, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192
| | - Irina Zhuravleva
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
| | - Abderahmen Zoghbi
- Department of Astronomy, University of Michigan, 1085 South University Avenue, Ann Arbor, MI 48109, USA
| | - Toshio Terasawa
- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Mamoru Sekido
- Kashima Space Technology Center, National Institute of Information and Communications Technology, Kashima, Ibaraki 314-8501
| | - Kazuhiro Takefuji
- Kashima Space Technology Center, National Institute of Information and Communications Technology, Kashima, Ibaraki 314-8501
| | - Eiji Kawai
- Kashima Space Technology Center, National Institute of Information and Communications Technology, Kashima, Ibaraki 314-8501
| | - Hiroaki Misawa
- Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Miyagi 980-8578
| | - Fuminori Tsuchiya
- Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Miyagi 980-8578
| | - Ryo Yamazaki
- Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258
| | - Eiji Kobayashi
- Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258
| | - Shota Kisaka
- Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258
| | - Takahiro Aoki
- The Research Institute for Time Studies, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511
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Iwata S, Saito K, Hirata S, Ohkubo N, Nakayamada S, Nakano K, Hanami K, Kubo S, Miyagawa I, Yoshikawa M, Miyazaki Y, Yoshinari H, Tanaka Y. Efficacy and safety of anti-CD20 antibody rituximab for patients with refractory systemic lupus erythematosus. Lupus 2018; 27:802-811. [DOI: 10.1177/0961203317749047] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Objective We examined the efficacy and safety of rituximab in patients with refractory systemic lupus erythematosus (SLE). Methods The study enrolled 63 SLE patients who were treated with rituximab between 2002 and 2015. The participants underwent a battery of tests before treatment and at one year. Treatment ranged from two to four times at 500 or 1000 mg. Results Baseline characteristics were males:females = 6:57, age 33.9 years, and disease duration 87.2 months. The primary endpoint: The rate of major clinical response (MCR) was 60% while the partial clinical response (PCR) was 25%. Thirty of 36 (83%) patients with lupus nephritis (WHO II: 2, III: 5, IV: 22, V: 4, IV+V: 2, not assessed: 1) and 22 of 24 patients (92%) with neuropsychiatric SLE, who could be followed at one year, showed changes from BILAG A or B score to C or D score at one year. Multivariate analysis identified high anti-dsDNA antibody and shorter disease duration as significant determinants of MCR at one year. Repeat examination was conducted at five years. Primary failure was recorded in 8.8% and secondary failure in 32.4% (time to relapse: 24.4 months). Rituximab was well tolerated although 65 adverse events, mostly infections, were recorded within one year. Conclusion Rituximab is potentially efficacious for the treatment of patients with refractory SLE.
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Affiliation(s)
- S Iwata
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - K Saito
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - S Hirata
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - N Ohkubo
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - S Nakayamada
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - K Nakano
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - K Hanami
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - S Kubo
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - I Miyagawa
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - M Yoshikawa
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - Y Miyazaki
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - H Yoshinari
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - Y Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational & Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
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170
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Morozumi T, Yashima A, Gomi K, Ujiie Y, Izumi Y, Akizuki T, Mizutani K, Takamatsu H, Minabe M, Miyauchi S, Yoshino T, Tanaka M, Tanaka Y, Hokari T, Yoshie H. Increased systemic levels of inflammatory mediators following one-stage full-mouth scaling and root planing. J Periodontal Res 2018; 53:536-544. [DOI: 10.1111/jre.12543] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/03/2018] [Indexed: 12/29/2022]
Affiliation(s)
- T. Morozumi
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - A. Yashima
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Yokohama Japan
| | - K. Gomi
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Yokohama Japan
| | - Y. Ujiie
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Yokohama Japan
| | - Y. Izumi
- Department of Periodontology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - T. Akizuki
- Department of Periodontology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - K. Mizutani
- Department of Periodontology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - H. Takamatsu
- Department of Periodontology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - M. Minabe
- Bunkyo-Dori Dental Clinic; Chiba Japan
- Division of Periodontology; Department of Oral Interdisciplinary Medicine; School of Dentistry; Kanagawa Dental University; Yokosuka Japan
| | | | - T. Yoshino
- Seikeikai Hospital; Seikeikai Group; Yokohama Japan
| | - M. Tanaka
- Seikeikai Hospital; Seikeikai Group; Yokohama Japan
| | - Y. Tanaka
- Seikeikai Hospital; Seikeikai Group; Yokohama Japan
| | - T. Hokari
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - H. Yoshie
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
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171
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Motohashi Y, Kemmochi Y, Maekawa T, Tadaki H, Sasase T, Tanaka Y, Kakehashi A, Yamada T, Ohta T. Diabetic macular edema-like ocular lesions in male spontaneously diabetic torii fatty rats. Physiol Res 2018. [PMID: 29527913 DOI: 10.33549/physiolres.933709] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Diabetic macular edema (DME) is a major factor contributing to visual disabilities in diabetic patients, and the number of patients is increasing. Animal models play a key role in the development of novel therapies. In this study, pathophysiological analyses of ocular lesions in Spontaneously Diabetic Torii (SDT) fatty rats were performed. First, vascular endothelial growth factor (VEGF) concentrations in vitreous humor, retinal vascular permeability and retinal thickness were measured in SDT fatty rats (Experiment 1). Furthermore, the pharmacological effects of two anti-diabetic drugs, phlorizin and pioglitazone, on retinal lesions were evaluated (Experiment 2). As results, the SDT fatty rats exhibited VEGF increase in vitreous humor at 8 and 16 weeks of age, and both retinal vascular hyperpermeability and retinal thickening at 16 weeks of age. In particular, the layers between the retinal internal limiting membrane and the outer nuclear layer were thickened. Phlorizin treatment from 4 to 16 weeks of age improved hyperglycemia and normalized retinal thickness; however, the effect of pioglitazone on retinal thickness was not strong despite the normalization of hyperglycemia. These data demonstrate that the male SDT fatty rat is a useful model for developing new therapeutic approaches in DME.
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Affiliation(s)
- Y Motohashi
- Biological/Pharmacological Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Takatsuki, Osaka, Japan.
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172
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Satoh Y, Nakano K, Yoshinari H, Nakayamada S, Iwata S, Kubo S, Miyagawa I, Yoshikawa M, Miyazaki Y, Saito K, Tanaka Y. A case of refractory lupus nephritis complicated by psoriasis vulgaris that was controlled with secukinumab. Lupus 2018. [PMID: 29523055 DOI: 10.1177/0961203318762598] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
It has been reported that T helper 17 cells are involved in the pathogenesis of systemic lupus erythematosus, but there is no report on interleukin-17-targeted therapy. We report a case of a 62-year-old female who presented with psoriasis vulgaris and refractory lupus nephritis. Because her conditions were resistant to conventional treatment, and flow cytometry confirmed the proliferation of activated T helper 17 cells in peripheral blood, and examination of a renal biopsy tissue sample confirmed infiltration of numerous interleukin-17-positive lymphocytes to the renal interstitium, administration of the anti-interleukin-17A antibody secukinumab was initiated. After starting secukinumab the clinical and biological features were improved.
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Affiliation(s)
- Y Satoh
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - K Nakano
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - H Yoshinari
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - S Nakayamada
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - S Iwata
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - S Kubo
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - I Miyagawa
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - M Yoshikawa
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Y Miyazaki
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - K Saito
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Y Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
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173
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Matsuo K, Tanaka Y, Sarmenta LFG, Nakai T, Bagarinao E. Enabling On-demand Real-time Functional MRI Analysis Using Grid Technology. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1634023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Summary
Objectives:
The analysis of brain imaging data such as functional MRI often requires considerable computing resources, which in most cases are not readily available in many medical imaging facilities. This lack of computing power makes it difficult for researchers and medical practitioners alike to perform on-site analysis of the generated data. This paper presents a system that is capable of analyzing functional MRI data in real time with results available within seconds after data acquisition.
Methods:
The system employs remote computational servers to provide the necessary computing power. System integration is accomplished by an accompanying software package, which includes fMRI analysis tools, data transfer routines, and an easy-to-use graphical user interface. The remote analysis is transparent to the user as if all computations are performed locally.
Results:
The use of PC clusters in the analysis of fMRI data significantly improved the performance of the system. Simulation runs fully achieved real-time performance with a total processing time of 1.089 s per image volume (64 x 64 x 30 in size), much less than the per volume acquisition time set to 3.0 s.
Conclusions:
The results show the feasibility of using remote computational resources to enable on-demand real-time fMRI capabilities to imaging sites. It also offers the possibility of doing more intensive analysis even if the imaging site doesn’t have the necessary computing resources.
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174
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Shibata S, Ohtuka Y, Hattori M, Aoshima T, Tohyama S, Uchiyama A, Kashihara H, Tamura M, Tsuchiya A, Yoshida K, Sasamori N, Tanaka Y. Subjective Symptoms Acquisition System in a Health Promotion System for the Elderly. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1634334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractA previous report was concerned with the evaluation of quality of life using a Health Promotion System for the Elderly. In the present report, we describe one part of that system: a subjective symptoms acquisition and reporting system.The main purpose of this system is to permit any physician or nurse to uniformly employ questionnaires to acquire accurate subjective symptoms. This system is applied in three steps. First, the subjective answers to 21 questions displayed on a personal computer are obtained. These answers correspond to the basic subjective symptoms. Second, if a basic subjective symptom is “positive”, more detailed questions are automatically generated. Finally, clear sentences regarding subjective symptoms are generated and output as a “finding report”.This information is helpful to physicians and nurses in their health-counseling work. An artificial intelligence (AI) program based on “XpertRule” produces detailed questions which are generated by an interactive questionnaire using branching logical rules.
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175
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Yamamoto K, Tateishi K, Kudo Y, Hoshikawa M, Tanaka M, Nakatsuka T, Fujiwara H, Miyabayashi K, Takahashi R, Tanaka Y, Ijichi H, Nakai Y, Isayama H, Morishita Y, Aoki T, Sakamoto Y, Hasegawa K, Kokudo N, Fukayama M, Koike K. Stromal remodeling by the BET bromodomain inhibitor JQ1 suppresses the progression of human pancreatic cancer. Oncotarget 2018; 7:61469-61484. [PMID: 27528027 PMCID: PMC5308665 DOI: 10.18632/oncotarget.11129] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [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: 03/21/2016] [Accepted: 07/27/2016] [Indexed: 12/13/2022] Open
Abstract
Inhibitors of bromodomain and extraterminal domain (BET) proteins, a family of chromatin reader proteins, have therapeutic efficacy against various malignancies. However, the detailed mechanisms underlying the anti-tumor effects in distinct tumor types remain elusive. Here, we show a novel antitumor mechanism of BET inhibition in pancreatic ductal adenocarcinoma (PDAC). We found that JQ1, a BET inhibitor, decreased desmoplastic stroma, a hallmark of PDAC, and suppressed the growth of patient-derived tumor xenografts (PDX) of PDACs. In vivo antitumor effects of JQ1 were not always associated with the JQ1 sensitivity of respective PDAC cells, and were rather dependent on the suppression of tumor-promoting activity in cancer-associated fibroblasts (CAFs). JQ1 inhibited Hedgehog and TGF-β pathways as potent regulators of CAF activation and suppressed the expression of α-SMA, extracellular matrix, cytokines, and growth factors in human primary CAFs. Consistently, conditioned media (CM) from CAFs promoted the proliferation of PDAC cells along with the activation of ERK, AKT, and STAT3 pathways, though these effects were suppressed when CM from JQ1-treated CAFs was used. Mechanistically, chromatin immunoprecipitation experiments revealed that JQ1 reduced TGF-β–dependent gene expression by disrupting the recruitment of the transcriptional machinery containing BET proteins. Finally, combination therapy with gemcitabine plus JQ1 showed greater efficacy than gemcitabine monotherapy against PDAC in vivo. Thus, our results reveal BET proteins as the critical regulators of CAF-activation and also provide evidence that stromal remodeling by epigenetic modulators can be a novel therapeutic option for PDAC.
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Affiliation(s)
- Keisuke Yamamoto
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Keisuke Tateishi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yotaro Kudo
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Mayumi Hoshikawa
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Mariko Tanaka
- Department of Pathology and Diagnostic Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Takuma Nakatsuka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Hiroaki Fujiwara
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Koji Miyabayashi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Ryota Takahashi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yasuo Tanaka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Hideaki Ijichi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yousuke Nakai
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Hiroyuki Isayama
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yasuyuki Morishita
- Department of Pathology and Diagnostic Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan.,Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Taku Aoki
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan.,Second Department of Surgery, Dokkyo Medical University, Mibu, Tochigi 321-0293, Japan
| | - Yoshihiro Sakamoto
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Kiyoshi Hasegawa
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Norihiro Kokudo
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Masashi Fukayama
- Department of Pathology and Diagnostic Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan
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176
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Nakamura S, Miyado M, Saito K, Katsumi M, Nakamura A, Kobori Y, Tanaka Y, Ishikawa H, Yoshida A, Okada H, Hata K, Nakabayashi K, Okamura K, Ogata H, Matsubara Y, Ogata T, Nakai H, Fukami M. Next-generation sequencing for patients with non-obstructive azoospermia: implications for significant roles of monogenic/oligogenic mutations. Andrology 2018; 5:824-831. [PMID: 28718531 DOI: 10.1111/andr.12378] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 03/29/2017] [Accepted: 04/09/2017] [Indexed: 11/29/2022]
Abstract
Azoospermia affects up to 1% of adult men. Non-obstructive azoospermia is a multifactorial disorder whose molecular basis remains largely unknown. To date, mutations in several genes and multiple submicroscopic copy-number variations (CNVs) have been identified in patients with non-obstructive azoospermia. The aim of this study was to clarify the contribution of nucleotide substitutions in known causative genes and submicroscopic CNVs in the genome to the development of non-obstructive azoospermia. To this end, we conducted sequence analysis of 25 known disease-associated genes using next-generation sequencing and genome-wide copy-number analysis using array-based comparative genomic hybridization. We studied 40 Japanese patients with idiopathic non-obstructive azoospermia. Functional significance of molecular alterations was assessed by in silico analyses. As a result, we identified four putative pathogenic mutations, four rare polymorphisms possibly associated with disease risk, and four probable neutral variants in 10 patients. These sequence alterations included a heterozygous splice site mutation in SOHLH1 and a hemizygous missense substitution in TEX11, which have been reported as causes of non-obstructive azoospermia. Copy-number analysis detected five X chromosomal or autosomal CNVs of unknown clinical significance, in addition to one known pathogenic Y chromosomal microduplication. Five patients carried multiple molecular alterations. The results indicate that monogenic and oligogenic mutations, including those in SOHLH1 and TEX11, account for more than 10% of cases of idiopathic non-obstructive azoospermia. Furthermore, this study suggests possible contributions of substitutions in various genes as well as submicroscopic CNVs on the X chromosome and autosomes to non-obstructive azoospermia, which require further validation.
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Affiliation(s)
- S Nakamura
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Pediatric Urology, Jichi Medical University, Children's Medical Center Tochigi, Tochigi, Japan
| | - M Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Saito
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Katsumi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of NCCHD Child Health and Development, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Nakamura
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Y Kobori
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan
| | - Y Tanaka
- Department of Pediatrics, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
| | - H Ishikawa
- Reproduction Center, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
| | - A Yoshida
- Reproduction Center, Kiba Park Clinic, Tokyo, Japan
| | - H Okada
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan
| | - K Hata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Nakabayashi
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Okamura
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan
| | - H Ogata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Y Matsubara
- National Research Institute for Child Health and Development, Tokyo, Japan
| | - T Ogata
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - H Nakai
- Department of Pediatric Urology, Jichi Medical University, Children's Medical Center Tochigi, Tochigi, Japan
| | - M Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
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177
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Motokawa K, Watanabe Y, Edahiro A, Shirobe M, Murakami M, Kera T, Kawai H, Obuchi S, Fujiwara Y, Ihara K, Tanaka Y, Hirano H. Frailty Severity and Dietary Variety in Japanese Older Persons: A Cross-Sectional Study. J Nutr Health Aging 2018; 22:451-456. [PMID: 29484361 DOI: 10.1007/s12603-018-1000-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [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] [Indexed: 10/18/2022]
Abstract
Providing older person individuals with an appropriate intervention at the time of frailty onset is important to prevent the progression of the condition and the need for long-term care. However, the proper timing of starting nutritional and dietary interventions for frail older person subjects has not been fully elucidated. Therefore, in this cross-sectional study, we aimed to clarify the association between frailty and dietary variety among older persons in Japan. We surveyed sex, age, body height, body weight, body mass index, serum albumin level, dietary variety, and nutritional intake indexes in 747 community-dwelling older person individuals who underwent a comprehensive health examination in October 2014. Frailty was determined using the Kihon Checklist (25 questions). Kihon Checklist is widely used to assess frailty in Japan, and their physical, cognitive and social function was evaluated. After excluding those who did not complete the Kihon Checklist and those who required long-term care, frailty status was analyzed in 665 older person individuals. The numbers and percentages of frail, pre-frail and robust older persons were found to be 77 (11.6%), 182 (27.4%) and 406 (61.0%) respectively. Significant differences among robust, pre-frail, and frail subjects were observed in terms of age, serum albumin level, alcohol consumption, smoking, and history of diabetes. Among the nutrition-related indexes, only the dietary variety showed a significant difference. The results of ordinal logistic regression analysis showed a significant association between frailty and sex, age, smoking status, diabetes, and dietary variety score. Dietary variety was significantly associated with the progression of frailty among older persons in the community.
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Affiliation(s)
- K Motokawa
- Yutaka Watanabe, Tokyo Metropolitan Institute of Gerontology, Japa, E-Mail:
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178
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Iwata Y, Tanaka Y, Kubosaki S, Morita T, Yoshimi Y. A strategy for generating aryl radicals from arylborates through organic photoredox catalysis: photo-Meerwein type arylation of electron-deficient alkenes. Chem Commun (Camb) 2018; 54:1257-1260. [DOI: 10.1039/c7cc09140k] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Generation of a variety of aryl radicals from arylboronic acids through metal-free photoredox catalysis under mild conditions.
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Affiliation(s)
- Y. Iwata
- Department of Applied Chemistry and Biotechnology
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
| | - Y. Tanaka
- Department of Applied Chemistry and Biotechnology
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
| | - S. Kubosaki
- Department of Applied Chemistry and Biotechnology
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
| | - T. Morita
- Department of Applied Chemistry and Biotechnology
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
| | - Y. Yoshimi
- Department of Applied Chemistry and Biotechnology
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
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179
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Ebe H, Matsumoto I, Kawaguchi H, Kurata I, Tanaka Y, Inoue A, Kondo Y, Tsuboi H, Sumida T. Clinical and functional significance of STEAP4-splice variant in CD14 + monocytes in patients with rheumatoid arthritis. Clin Exp Immunol 2017; 191:338-348. [PMID: 29080328 DOI: 10.1111/cei.13076] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2017] [Indexed: 01/25/2023] Open
Abstract
Tumour necrosis factor alpha (TNF)-α-induced adipose-related protein (TIARP) is a negative regulator of inflammation in arthritis model mice. In humans, six-transmembrane epithelial antigen of prostate 4 (STEAP4) (human counterpart of TIARP) is also expressed in CD14+ monocytes from patients with rheumatoid arthritis (RA). Recently, highly levels of exon 3-spliced variant STEAP4 (v-STEAP4) expression have been observed in porcine lung. The aim of this study is to elucidate the expression and functional role of v-STEAP4, comparing it with that of STEAP4, in the pathogenesis of arthritis. We identified v-STEAP4 in CD14+ cells. The expression of STEAP4 and v-STEAP4 was higher in patients with RA than in healthy participants. We also found that STEAP4 and v-STEAP4 were correlated positively with C-reactive protein and that their expression was decreased after treatment with an interleukin (IL)-6 antagonist in patients with RA. To investigate further the role of STEAP4 and v-STEAP4, we produced STEAP4 and v-STEAP4 over-expressing human monocytic cell lines (THP-1) for functional analysis. In the v-STEAP4 over-expressing cells, the production of IL-6 was suppressed significantly, but TNF-α was increased significantly through lipopolysaccharide (LPS) stimulation. Immunoblot analysis revealed that phosphorylated (p-)nuclear factor kappa B (NF-κB) was increased after LPS stimulation and degradation of nuclear factor kappa B inhibitor alpha (IκBα) was sustained, whereas p-signal transducer and activator of transcription 3 (STAT-3) was decreased with v-STEAP4. We identified specific up-regulation of v-STEAP4 in RA monocytes. V-STEAP4 might play a crucial role in the production of TNF-α and IL-6 through NF-κB and STAT-3 pathways, resulting in the generation of RA.
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Affiliation(s)
- H Ebe
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - I Matsumoto
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - H Kawaguchi
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - I Kurata
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Y Tanaka
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - A Inoue
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Y Kondo
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - H Tsuboi
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - T Sumida
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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180
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Fujita T, Sakuragi M, Miyazaki C, Siba S, Tanaka Y, Koike R, Shiozawa M. Is sentinel lymph node biopsy necessary in breast cancer patients who were diagnosed as initially clinically node-negative before neoadjuvant chemotherapy? Ann Oncol 2017. [DOI: 10.1093/annonc/mdx655.013] [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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181
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Katayama K, Tamiya A, Tanaka Y, Nakahama K, Taniguchi Y, Saijo N, Naoki Y, Omachi N, Okishio K, Kasai T, Atagi S. Nab-paclitaxel in combination with carboplatin versus docetaxel in chemotherapy-naïve with advanced non-small-cell lung cancer aged 75 years old or more: Retrospective cohort study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.046] [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: 11/14/2022] Open
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182
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Miyatake S, Mitsuhashi S, Hayashi Y, Nishikawa A, Suzuki M, Yatabe K, Tanaka Y, Ogata K, Kuru S, Nonaka I, Nishino I, Matsumoto N. Biallelic mutations in MYPN cause childhood-onset, slowly progressive nemaline myopathy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.224] [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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183
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Miyata M, Kakeda S, Kudo K, Wnag Y, Iwata S, Tanaka Y, Korogi Y. The oxygen extraction fraction (OEF) in systemic lupus erythematosus (SLE): MRI study using quantitative susceptibility mapping (QSM). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1841] [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: 11/16/2022]
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184
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Miyata M, Kakeda S, Iwata S, Tanaka Y, Korogi Y. Enlarged perivascular spaces in brain are associated with disease activity in systemic lupus erythematosus. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1840] [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: 11/28/2022]
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185
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Tanaka Y, Takano H, Saito S, Genkai N, Abe H. Transorbital approach of transcranial doppler (TCD) in perioperative management of carotid artery stenting (CAS). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3125] [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: 11/16/2022]
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186
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Miyagi T, Okubo Y, Yamaguchi S, Utsumi D, Tanaka R, Tanaka Y, Takahashi K. 584 Sustained UV-B irradiation can impair the host immune-surveillance and exacerbate the cutaneous, gastrointestinal and lymph node lesions through the induction of PD-L1, EBI3 and CCR6 expression. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.781] [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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187
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Ogura A, Masuda M, Imai K, Ohdake R, Tanaka Y, Yokoi T, Kawabata K, Hara K, Nakamura R, Atsuta N, Watanabe H, Katsuno M, Sobue G. Characteristics of semantic impairment in ALS associated with jukujikun. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1607] [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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188
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Tanaka Y, Tsuboi T, Watanabe H, Nakatsubo D, Maesawa S, Kajita Y, Hattori M, Ohdake R, Yamamoto M, Wakabatkabayashi T, Katsuno M, Sobue G. Instability of syllable repetition in Parkinson’s disease after subthalamic nucleus deep brain stimulation. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2924] [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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189
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Ong SM, Saeki K, Kok MK, Tanaka Y, Choisunirachon N, Yoshitake R, Nishimura R, Nakagawa T. Anti-tumour efficacy of etoposide alone and in combination with piroxicam against canine osteosarcoma in a xenograft model. Res Vet Sci 2017; 113:130-135. [PMID: 28957780 DOI: 10.1016/j.rvsc.2017.09.019] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 09/14/2017] [Accepted: 09/16/2017] [Indexed: 12/21/2022]
Abstract
Osteosarcoma (OSA) in dogs is locally invasive and highly malignant. Distant metastasis is the most common cause of death. To date, the survival rate in dogs with OSA remains poor. The cytotoxic effects of etoposide against canine OSA cell lines, either alone or in combination with piroxicam, have been previously demonstrated in vitro. The aim of this study was to evaluate the anti-tumour effect of etoposide alone and in combination with piroxicam on canine OSA using murine models. Etoposide single agent treatment significantly delayed tumour progression with a marked reduction in Ki-67 immunoreactivity in tumour tissue. Concomitant treatment with piroxicam did not enhance the anti-tumour efficacy of etoposide. Etoposide single agent treatment and combination treatment with piroxicam down-regulated survivin expression, but was not followed by increased apoptotic activity. These findings indicate that etoposide might be a promising novel therapeutic for canine OSA. Further investigations into its potential for clinical application in veterinary oncology are warranted.
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Affiliation(s)
- S M Ong
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - K Saeki
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - M K Kok
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Y Tanaka
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - N Choisunirachon
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - R Yoshitake
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - R Nishimura
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - T Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
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190
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Yalikun Y, Tanaka N, Hosokawa Y, Iino T, Tanaka Y. Embryonic body culturing in an all-glass microfluidic device with laser-processed 4 μm thick ultra-thin glass sheet filter. Biomed Microdevices 2017; 19:85. [PMID: 28929304 DOI: 10.1007/s10544-017-0227-7] [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] [Indexed: 01/23/2023]
Abstract
In this paper, we report the development and demonstration of a method to fabricate an all-glass microfluidic cell culturing device without circulation flow. On-chip microfluidic cell culturing is an indispensable technique for cellular replacement therapies and experimental cell biology. Polydimethylsiloxane (PDMS) have become a popular material for fabricating microfluidic cell culture devices because it is a transparent, biocompatible, deformable, easy-to-mold, and gas-permeable. However, PDMS is also a chemically and physically unstable material. For example, PDMS undergoes aging easily even in room temperature conditions. Therefore, it is difficult to control long term experimental culturing conditions. On the other hand, glass is expected to be stable not only in physically but also chemically even in the presence of organic solvents. However, cell culturing still requires substance exchanges such as gases and nutrients, and so on, which cannot be done in a closed space of a glass device without circulation flow that may influence cell behavior. Thus, we introduce a filter structure with micropores onto a glass device to improve permeability to the cell culture space. Normally, it is extremely difficult to fabricate a filter structure on a normal glass plate by using a conventional fabrication method. Here, we demonstrated a method for fabricating an all-glass microfluidic cell culturing device having filters structure. The function of this all-glass culturing device was confirmed by culturing HeLa, fibroblast and ES cells. Compared with the closed glass devices without a filter structure, the numbers of cells in our device increased and embryonic bodies (EBs) were formed. This method offers a new tool in microfluidic cell culture technology for biological analysis and it expands the field of microfluidic cell culture.
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Affiliation(s)
- Y Yalikun
- Laboratory for Integrated Biodevice, Quantitative Biology Center, RIKEN, Suita, Osaka, 565-0871, Japan
| | - N Tanaka
- Laboratory for Integrated Biodevice, Quantitative Biology Center, RIKEN, Suita, Osaka, 565-0871, Japan
| | - Y Hosokawa
- Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara, 630-0192, Japan
| | - T Iino
- Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara, 630-0192, Japan
| | - Y Tanaka
- Laboratory for Integrated Biodevice, Quantitative Biology Center, RIKEN, Suita, Osaka, 565-0871, Japan.
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191
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Toyama T, Kuroda M, Ogata Y, Hachiya Y, Quach A, Tokura K, Tanaka Y, Mori K, Morikawa M, Ike M. Enhanced biomass production of duckweeds by inoculating a plant growth-promoting bacterium, Acinetobacter calcoaceticus P23, in sterile medium and non-sterile environmental waters. Water Sci Technol 2017; 76:1418-1428. [PMID: 28953468 DOI: 10.2166/wst.2017.296] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Duckweed offers the promise of a co-benefit culture combining water purification with biomass production. Acinetobacter calcoaceticus P23 is a plant growth-promoting bacterium isolated from a duckweed, Lemna aequinoctialis. This study quantified its growth-promoting effect on three duckweeds (L. aoukikusa, L. minor, and Spirodela polyrhiza) in sterile Hoagland solution and evaluated its usefulness in duckweed culture under non-sterile conditions. P23 promoted growth of three duckweeds in sterile Hoagland solution at low to high nutrient concentrations (1.25-10 mg NO3-N/L and 0.25-2.0 mg PO4-P/L). It increased the biomass production of L. aequinoctialis 3.8-4.3-fold, of L. minor 2.3-3.3-fold, and of S. polyrhiza 1.4-1.5-fold after 7 days compared with noninoculated controls. P23 also increased the biomass production of L. minor 2.4-fold in pond water and 1.7-fold in secondary effluent of a sewage treatment plant under non-sterile conditions at laboratory-scale experiments. P23 rescued L. minor from growth inhibition caused by microorganisms indigenous to the pond water. The results demonstrate that the use of P23 in duckweed culture can improve the efficiency of duckweed biomass production, and a positive effect of P23 on duckweed-based wastewater treatment can be assumed.
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Affiliation(s)
- T Toyama
- Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan E-mail:
| | - M Kuroda
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Ogata
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | - Y Hachiya
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - A Quach
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Tokura
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Tanaka
- Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan E-mail:
| | - K Mori
- Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan E-mail:
| | - M Morikawa
- Division of Biosphere Science, Graduate School of Environmental Science, Hokkaido University, Kita-10 Nishi-5, Kita-ku, Sapporo 060-0810, Japan
| | - M Ike
- Division of Sustainable Energy and Environmental Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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192
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Tanaka Y, Kanda M, Tanaka C, Kobayashi D, Tanaka H, Takami H, Hayashi M, Iwata N, Niwa Y, Yamada S, Nakayama G, Sugimoto H, Koike M, Fujiwara M, Kodera Y. Involvement of the immunoregulator MZB1 in progression of gastric cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.059] [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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193
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Sasaki C, Aono N, Nakajo Y, Hattori H, Tanaka Y, Inoue H, Koizumi M, Toya M, Hashimoto T, Igarashi H, Kyono K. Effect of cancer treatment on female reproductive outcomes. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.540] [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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194
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Ishii M, Yamaguchi Y, Osumi S, Tanaka Y, Ogawa S, Akishita M. SUN-LB307: Abdominal Ultrasound Findings of Gastrointestinal Motility are Effective in Predicting the Risk of Fever Due to Respiratory Infections in Patients with Feeding Tubes. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30656-8] [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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195
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Hisajima T, Waki H, Sato A, Miura T, Suzuki T, Tanaka Y, Tamai K, Uebaba K, Imai K. SUN-LB310: Efficacy of Active Hexose Correlated Compound Against Nasopharyngeal Complaints: A Randomized, Double-Blind, Placebo-Controlled Trial. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30653-2] [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: 11/28/2022]
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196
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Wawrzyńczak R, Tanaka Y, Yoshida M, Okamoto Y, Manuel P, Casati N, Hiroi Z, Takigawa M, Nilsen GJ. Classical Spin Nematic Transition in LiGa_{0.95}In_{0.05}Cr_{4}O_{8}. Phys Rev Lett 2017; 119:087201. [PMID: 28952772 DOI: 10.1103/physrevlett.119.087201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Indexed: 06/07/2023]
Abstract
We present the results of a combined ^{7}Li-NMR and diffraction study on LiGa_{0.95}In_{0.05}Cr_{4}O_{8}, a member of the LiGa_{1-x}In_{x}Cr_{4}O_{8} "breathing" pyrochlore family. Via specific heat and NMR measurements, we find that the complex sequence of first-order transitions observed for LiGaCr_{4}O_{8} is replaced by a single second-order transition at T_{f}=11 K. Neutron and x-ray diffraction rule out both structural symmetry lowering and magnetic long-range order as the origin of this transition. Instead, reverse Monte Carlo fitting of the magnetic diffuse scattering indicates that the low-temperature phase may be described as a collinear spin nematic state, characterized by a quadrupolar order parameter. This state also shows signs of short-range order between collinear spin arrangements on tetrahedra, revealed by mapping the reverse Monte Carlo spin configurations onto a three-state color model.
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Affiliation(s)
- R Wawrzyńczak
- Institut Laue-Langevin, 6 rue Jules Horowitz, 38042 Grenoble, France
| | - Y Tanaka
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - M Yoshida
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Y Okamoto
- Department of Applied Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - P Manuel
- ISIS Neutron and Muon Source, Science and Technology Facilities Council, Didcot OX11 0QX, United Kingdom
| | - N Casati
- Swiss Light Source, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Z Hiroi
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - M Takigawa
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - G J Nilsen
- ISIS Neutron and Muon Source, Science and Technology Facilities Council, Didcot OX11 0QX, United Kingdom
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197
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Tanaka Y, Takahashi H, Utoh H, Shinde J, Ogawa M, Iwazaki K, Aoyama H, Umetsu H, Okamoto A, Shinto K, Kitajima S, Yokoyama M, Inagaki S, Suzuki Y, Nishimura K, Sasaoa M. Potential and Density Fluctuation Characteristics of the Hot-Cathode-Biased Supersonic Plasma in TU-Heliac. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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. Tanaka
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - H. Takahashi
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - H. Utoh
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - J. Shinde
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - M. Ogawa
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - K. Iwazaki
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - H. Aoyama
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - H. Umetsu
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - A. Okamoto
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - K. Shinto
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - S. Kitajima
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
| | - M. Yokoyama
- National Institute for Fusion Science, Toki, 509-5292, Japan
| | - S. Inagaki
- National Institute for Fusion Science, Toki, 509-5292, Japan
| | - Y. Suzuki
- National Institute for Fusion Science, Toki, 509-5292, Japan
| | - K. Nishimura
- National Institute for Fusion Science, Toki, 509-5292, Japan
| | - M. Sasaoa
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, 980-8579, Japan
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198
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Moriyama N, Shishido K, Takuma T, Tobita K, Tsukuda S, Yamanaka F, Mizuno S, Tanaka Y, Murakami M, Matsumi J, Takahashi S, Saito S. 2018Optical coherence tomographic analysis of in-scaffold atherosclerosis after bioresorbable vascular scaffold implantation at five year follow up. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.2018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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199
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Sugiura T, Dohi Y, Takase H, Yamashita S, Tanaka Y, Ohte N. P6218Serum levels of Mac-2 binding protein reflect silent atherosclerosis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6218] [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: 11/14/2022] Open
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200
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Tanaka Y, Yoshimuta T, Sakata K, Kawashiri M, Yamagishi M. P5171Sex-related differences in patients with type A acute aortic dissection. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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