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Masuko K, Iwahara C, Kamiya S, Sakate S, Mizukami Y. Levels of vitamin D and a bone resorption marker in the sera of young women with alcohol use disorder. J Addict Dis 2023:1-9. [PMID: 37950604 DOI: 10.1080/10550887.2023.2264999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
BACKGROUND Excessive alcohol drinking negatively affects bone metabolism and leads to a risk of decreased bone mass, which is a major component of the pathogenesis of osteoporosis. However, the potential influence of alcohol on bones has not been fully recognized, particularly among the young to middle-aged generation. OBJECTIVES This study aimed to investigate the status of serum markers related to bone metabolism in young to middle-aged women with alcohol use disorder (AUD). METHODS Levels of vitamin D and the bone-resorption marker tartrate-resistant acid phosphatase 5b were measured in the sera of 25 women with AUD (mean age, 39.5 ± 7.5 years) who were enrolled in an AUD rehabilitation program. Data of samples obtained on admission and those after eight weeks were compared. RESULTS Of the 25 women with AUD, 19 (76%) had vitamin D deficiency (<20 ng/mL), and most of the patients showed relatively higher tartrate-resistant acid phosphatase 5b levels at baseline considering their premenopausal age. Although the levels did not change significantly at week eight of the AUD rehabilitation program, vitamin D levels tended to increase initially in patients with vitamin D deficiency. Although further investigations and detailed nutritional assessment are necessary, the results of this study may support the presence of a relatively unknown influence of AUD on the bone health of the young to middle-aged population. Along with psychological and physical care, persons with AUD should be treated as a high-risk group for future osteoporosis regardless of age.
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Affiliation(s)
- Kayo Masuko
- Department of Internal Medicine, Akasaka Sanno Medical Center, Tokyo, Japan
- Clinical Medicine Research Center, International University of Health and Welfare, Otawara, Japan
| | | | - Shigemi Kamiya
- Department of Nutritional Management, National Hospital Organization Disaster Medical Center, Tokyo, Japan
| | - Seiji Sakate
- Department of Food and Nutrition, Kyoto Women's University, Kyoto, Japan
| | - Yuki Mizukami
- Graduate School of Nutritional Science, Sagami Women's University, Kanagawa, Japan
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2
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Igarashi Y, Kojima N, Takemura W, Liu X, Morita T, Mizukami Y, Enoki Y, Taguchi K, Yokoyama Y, Nakamura T, Matsumoto K. In vivo Pharmacokinetics/Pharmacodynamics Profiles for Appropriate Doses of Cefditoren pivoxil against S. pneumoniae in Murine Lung-Infection Model. Pharm Res 2023; 40:1789-1797. [PMID: 37253866 DOI: 10.1007/s11095-023-03539-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/16/2023] [Indexed: 06/01/2023]
Abstract
PURPOSE Cefditoren, the active form of cefditoren pivoxil, is an oral cephalosporin antimicrobial drug. Although cefditoren exhibits high antimicrobial activity against Streptococcus pneumoniae, its pharmacokinetics/pharmacodynamics (PK/PD) characteristics remain unknown. This study aimed to determine its PK/PD parameter with target values for cefditoren against S. pneumoniae in S. pneumoniae lung-infected mice and to simulate MIC range of S. pneumoniae that can be expected to be treated at approved cefditoren doses in human using population pharmacokinetic (PPK) data from patients. METHODS Susceptibility testing and time-kill assays against S. pneumoniae ATCC® 49619 were performed for in vitro PD evaluation. Based on the results of a PK study in healthy mice and PD studies in S. pneumoniae lung-infected mice, optimal PK/PD parameters were determined using the correlation curve between the PK/PD parameters and lung bacterial count changes. The target value was calculated to achieve a 2 log10 reduction in the lung bacterial counts. RESULTS In vitro PD evaluation showed that cefditoren had a potent antimicrobial effect against S. pneumoniae in a time-dependent manner at concentrations above the MIC. In PK/PD analyses, both fAUC24/MIC and fCmax/MIC were well correlated with bactericidal efficacy, achieving 2 log10-kill with fAUC24/MIC ≥ 63 and fCmax/MIC ≥ 16. CONCLUSIONS Cefditoren pivoxil has good therapeutic efficacy against acute pneumonia caused by S. pneumoniae with a MIC ≤ 0.031-0.063 mg/L at approved doses in adults and children.
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Affiliation(s)
- Yuki Igarashi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Nana Kojima
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Wataru Takemura
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Xiaoxi Liu
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Takumi Morita
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Yuki Mizukami
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Yuki Enoki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Kazuaki Taguchi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan.
| | - Yuta Yokoyama
- Division of Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Tomonori Nakamura
- Division of Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
| | - Kazuaki Matsumoto
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-Ku, Tokyo, 105-8512, Japan
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Takemura W, Tashiro S, Hayashi M, Igarashi Y, Liu X, Mizukami Y, Kojima N, Morita T, Enoki Y, Taguchi K, Yokoyama Y, Nakamura T, Matsumoto K. Cefmetazole as an Alternative to Carbapenems Against Extended-Spectrum Beta-Lactamase-Producing Escherichia coli Infections Based on In Vitro and In Vivo Pharmacokinetics/Pharmacodynamics Experiments. Pharm Res 2021; 38:1839-1846. [PMID: 34853981 DOI: 10.1007/s11095-021-03140-7] [Citation(s) in RCA: 14] [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] [Received: 08/19/2021] [Accepted: 11/10/2021] [Indexed: 12/26/2022]
Abstract
PURPOSE Cefmetazole (CMZ) has received attention as a pharmaceutical intervention for extended-spectrum beta-lactamase-producing Escherichia coli (ESBL-EC) infections. This study aimed to investigate the pharmacokinetics/pharmacodynamics (PK/PD) characteristics of CMZ against ESBL-EC. METHODS The susceptibility and time-killing activity of CMZ against clinically isolated ESBL-EC (EC9 and EC19) were determined in vitro. The optimal PK/PD index and its target value were calculated based on the results of a PK study in healthy mice and PD study in neutropenic murine thigh infection model mice. RESULTS The minimum inhibitory concentrations (MICs) of CMZ against EC9 and EC19 were 2.0 and 1.0 µg/mL, respectively. Time-kill studies showed that colony-forming units decreased in a time-dependent manner at CMZ concentrations in the range of 4-64 × MIC. In in vivo PK/PD studies, the antibacterial effect of CMZ showed the better correlation with the time that the free drug concentration remaining above the MIC (fT>MIC), with the target values for a static effect and 1 log10 kill reduction calculated as 57.6% and 69.6%, respectively. CONCLUSION CMZ possesses time-dependent bactericidal activities against ESBL-EC and is required to achieve "fT>MIC" ≥ 69.6% for the treatment of ESBL-EC infections.
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Affiliation(s)
- Wataru Takemura
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Sho Tashiro
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Marina Hayashi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Yuki Igarashi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Xiaoxi Liu
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Yuki Mizukami
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Nana Kojima
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Takumi Morita
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Yuki Enoki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kazuaki Taguchi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
| | - Yuta Yokoyama
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Tomonori Nakamura
- Division of Pharmaceutical Care Sciences, Center for Social Pharmacy and Pharmaceutical Care Sciences, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Kazuaki Matsumoto
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
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Kuwayama T, Matsuura K, Gouchi J, Yamakawa Y, Mizukami Y, Kasahara S, Matsuda Y, Shibauchi T, Kontani H, Uwatoko Y, Fujiwara N. Pressure-induced reconstitution of Fermi surfaces and spin fluctuations in S-substituted FeSe. Sci Rep 2021; 11:17265. [PMID: 34446750 PMCID: PMC8390510 DOI: 10.1038/s41598-021-96277-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/04/2021] [Indexed: 11/19/2022] Open
Abstract
FeSe is a unique high-\documentclass[12pt]{minimal}
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\begin{document}$$T_c$$\end{document}Tc iron-based superconductor in which nematicity, superconductivity, and magnetism are entangled with each other in the P-T phase diagram. We performed \documentclass[12pt]{minimal}
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\begin{document}$$^{77}$$\end{document}77Se-nuclear magnetic resonance measurements under pressures of up to 3.9 GPa on 12% S-substituted FeSe, in which the complex overlap between the nematicity and magnetism are resolved. A pressure-induced Lifshitz transition was observed at 1.0 GPa as an anomaly of the density of states and as double superconducting (SC) domes accompanied by different types of antiferromagnetic (AF) fluctuations. The low-\documentclass[12pt]{minimal}
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\begin{document}$$T_{\mathrm{c}}$$\end{document}Tc SC dome below 1 GPa is accompanied by strong AF fluctuations, whereas the high-\documentclass[12pt]{minimal}
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\begin{document}$$T_{\mathrm{c}}$$\end{document}Tc SC dome develops above 1 GPa, where AF fluctuations are fairly weak. These results suggest the importance of the \documentclass[12pt]{minimal}
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\begin{document}$$d_{xy}$$\end{document}dxy orbital and its intra-orbital coupling for the high-\documentclass[12pt]{minimal}
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\begin{document}$$T_{\mathrm{c}}$$\end{document}Tc superconductivity.
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Affiliation(s)
- T Kuwayama
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cyo, Sakyo-ku, Kyoto, 606-8501, Japan
| | - K Matsuura
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.,Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan
| | - J Gouchi
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - Y Yamakawa
- Department of Physics, Nagoya University, Furo-cho, Nagoya, 464-8602, Japan
| | - Y Mizukami
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - S Kasahara
- Division of Physics and Astronomy, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan.,Department of Physics, Okayama University, Okayama, 700-8530, Japan
| | - Y Matsuda
- Division of Physics and Astronomy, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - T Shibauchi
- Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - H Kontani
- Department of Physics, Nagoya University, Furo-cho, Nagoya, 464-8602, Japan
| | - Y Uwatoko
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - N Fujiwara
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cyo, Sakyo-ku, Kyoto, 606-8501, Japan.
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Takenaka T, Ishihara K, Roppongi M, Miao Y, Mizukami Y, Makita T, Tsurumi J, Watanabe S, Takeya J, Yamashita M, Torizuka K, Uwatoko Y, Sasaki T, Huang X, Xu W, Zhu D, Su N, Cheng JG, Shibauchi T, Hashimoto K. Strongly correlated superconductivity in a copper-based metal-organic framework with a perfect kagome lattice. Sci Adv 2021; 7:7/12/eabf3996. [PMID: 33731356 PMCID: PMC7968839 DOI: 10.1126/sciadv.abf3996] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 01/29/2021] [Indexed: 05/26/2023]
Abstract
Metal-organic frameworks (MOFs), which are self-assemblies of metal ions and organic ligands, provide a tunable platform to search a new state of matter. A two-dimensional (2D) perfect kagome lattice, whose geometrical frustration is a key to realizing quantum spin liquids, has been formed in the π - d conjugated 2D MOF [Cu3(C6S6)] n (Cu-BHT). The recent discovery of its superconductivity with a critical temperature T c of 0.25 kelvin raises fundamental questions about the nature of electron pairing. Here, we show that Cu-BHT is a strongly correlated unconventional superconductor with extremely low superfluid density. A nonexponential temperature dependence of superfluid density is observed, indicating the possible presence of superconducting gap nodes. The magnitude of superfluid density is much smaller than those in conventional superconductors and follows the Uemura's relation of strongly correlated superconductors. These results imply that the unconventional superconductivity in Cu-BHT originates from electron correlations related to spin fluctuations of kagome lattice.
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Affiliation(s)
- T Takenaka
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - K Ishihara
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - M Roppongi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Y Miao
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Y Mizukami
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - T Makita
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - J Tsurumi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - S Watanabe
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - J Takeya
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - M Yamashita
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - K Torizuka
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
- Department of Physics, Nippon Institute of Technology, Miyashiro, Saitama 345-8501, Japan
| | - Y Uwatoko
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - T Sasaki
- Institute for Materials Research, Tohoku University, Aoba-ku, Sendai 980-8577, Japan
| | - X Huang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - W Xu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - D Zhu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - N Su
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - J-G Cheng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - T Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan.
| | - K Hashimoto
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan.
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6
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Moriyama H, Tsutsuura M, Kojima N, Mizukami Y, Tashiro S, Osa S, Enoki Y, Taguchi K, Oda K, Fujii S, Takahashi Y, Hamada Y, Kimura T, Takesue Y, Matsumoto K. The optimal trough-guided monitoring of vancomycin in children: Systematic review and meta-analyses. J Infect Chemother 2021; 27:781-785. [PMID: 33563525 DOI: 10.1016/j.jiac.2021.01.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/08/2021] [Accepted: 01/26/2021] [Indexed: 11/26/2022]
Abstract
We carried out a systematic review and meta-analysis exploring the relationship between vancomycin (VCM) trough concentrations and its effectiveness and nephrotoxicity in pediatric patients. We conducted our analysis using MEDLINE, Web of Sciences, and Cochrane Register of Controlled Trials as electronic databases (June 29, 2019). Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated. We identified 16 studies that were eligible for the meta-analysis. A total of 351 and 3,266 patients were included in the analysis for effectiveness and nephrotoxicity, respectively. Pediatric MRSA infection patients with VCM trough concentrations ≥ 10 μg/mL had significantly lower treatment failure rates (OR 0.54, 95% CI 0.30-0.96). The incidence of nephrotoxicity was significantly higher in trough concentrations ≥ 15 μg/mL than when they were < 15 μg/mL (OR 3.02, 95% CI 2.08-4.38). We identified the optimal VCM trough concentrations associated with effectiveness and nephrotoxicity in pediatric patients with MRSA infection. Further prospective studies are needed to find optimal dosing and monitoring strategy on VCM in pediatric population.
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Affiliation(s)
- Hiromu Moriyama
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Moeko Tsutsuura
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Nana Kojima
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Yuki Mizukami
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Sho Tashiro
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Sumika Osa
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Yuki Enoki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
| | - Kazuaki Taguchi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kazutaka Oda
- Department of Pharmacy, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto-shi, Kumamoto, 860-8556, Japan
| | - Satoshi Fujii
- Department of Hospital Pharmacy, Sapporo Medical University Hospital, 16-291, South 1, West 16, Chuo-ku, Sapporo-shi, Hokkaido, 060-8543, Japan
| | - Yoshiko Takahashi
- Department of Pharmacy, Hyogo College of Medicine, 1-1, Mukogawa-machi, Nishinomiya-shi, Hyogo, 663-8501, Japan
| | - Yukihiro Hamada
- Department of Pharmacy, Tokyo Women's Medical University Hospital, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-0054, Japan
| | - Toshimi Kimura
- Department of Pharmacy, Tokyo Women's Medical University Hospital, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, 162-0054, Japan
| | - Yoshio Takesue
- Department of Infection Control and Prevention, Hyogo College of Medicine, 1-1, Mukogawa-cho, Nishinomiya-shi, Hyogo, 663-8501, Japan
| | - Kazuaki Matsumoto
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
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Mizukami Y, Sugawara K, Tsuruta D. Female pattern hair loss with acromegaly. Clin Exp Dermatol 2020; 46:607-609. [PMID: 33052616 DOI: 10.1111/ced.14460] [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] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Y Mizukami
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Sugawara
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - D Tsuruta
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
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Yip KY, Ho KO, Yu KY, Chen Y, Zhang W, Kasahara S, Mizukami Y, Shibauchi T, Matsuda Y, Goh SK, Yang S. Measuring magnetic field texture in correlated electron systems under extreme conditions. Science 2019; 366:1355-1359. [DOI: 10.1126/science.aaw4278] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 11/06/2019] [Indexed: 11/02/2022]
Abstract
Pressure is a clean, continuous, and systematic tuning parameter among the competing ground states in strongly correlated electron systems such as superconductivity and magnetism. However, owing to the restricted access to samples enclosed in high-pressure devices, compatible magnetic field sensors with sufficient sensitivity are rare. We used nitrogen vacancy centers in diamond as a spatially resolved vector field sensor for material research under pressure at cryogenic temperatures. Using a single crystal of BaFe2(As0.59P0.41)2 as a benchmark, we extracted the superconducting transition temperature, the local magnetic field profile in the Meissner state, and the critical fields. The method developed in this work offers a distinct tool for probing and understanding a range of quantum many-body systems.
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Affiliation(s)
- King Yau Yip
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Kin On Ho
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - King Yiu Yu
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Yang Chen
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Wei Zhang
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - S. Kasahara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y. Mizukami
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
| | - T. Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
| | - Y. Matsuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Swee K. Goh
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Sen Yang
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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9
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Murayama H, Sato Y, Kurihara R, Kasahara S, Mizukami Y, Kasahara Y, Uchiyama H, Yamamoto A, Moon EG, Cai J, Freyermuth J, Greven M, Shibauchi T, Matsuda Y. Diagonal nematicity in the pseudogap phase of HgBa 2CuO 4+δ. Nat Commun 2019; 10:3282. [PMID: 31337758 PMCID: PMC6650423 DOI: 10.1038/s41467-019-11200-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 06/27/2019] [Indexed: 11/09/2022] Open
Abstract
The pseudogap phenomenon in the cuprates is arguably the most mysterious puzzle in the field of high-temperature superconductivity. The tetragonal cuprate HgBa2CuO4+δ, with only one CuO2 layer per primitive cell, is an ideal system to tackle this puzzle. Here, we measure the magnetic susceptibility anisotropy within the CuO2 plane with exceptionally high-precision magnetic torque experiments. Our key finding is that a distinct two-fold in-plane anisotropy sets in below the pseudogap temperature T*, which provides thermodynamic evidence for a nematic phase transition with broken four-fold symmetry. Surprisingly, the nematic director orients along the diagonal direction of the CuO2 square lattice, in sharp contrast to the bond nematicity along the Cu-O-Cu direction. Another remarkable feature is that the enhancement of the diagonal nematicity with decreasing temperature is suppressed around the temperature at which short-range charge-density-wave formation occurs. Our result suggests a competing relationship between diagonal nematic and charge-density-wave order in HgBa2CuO4+δ.
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Affiliation(s)
- H Murayama
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - Y Sato
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - R Kurihara
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - S Kasahara
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - Y Mizukami
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan
| | - Y Kasahara
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan
| | - H Uchiyama
- Materials Dynamics Laboratory, RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo, 679-5148, Japan.,Research and Utilization Division, Japan Synchrotron Radiation Research Institute (SPring-8/JASRI), 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
| | - A Yamamoto
- Graduate School of Engineering and Science, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo, 135-8584, Japan
| | - E-G Moon
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea
| | - J Cai
- School of Physics and Astronomy, University of Minnesota, Minneapolis, MN, 55455, USA.,Physics Department, University of Maryland, College Park, MD, 20742-4111, USA
| | - J Freyermuth
- School of Physics and Astronomy, University of Minnesota, Minneapolis, MN, 55455, USA.,Department of Physics, The Ohio State University, Columbus, OH, 43210-1117, USA
| | - M Greven
- School of Physics and Astronomy, University of Minnesota, Minneapolis, MN, 55455, USA
| | - T Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Chiba, 277-8561, Japan
| | - Y Matsuda
- Department of Physics, Kyoto University, Kyoto, 606-8502, Japan.
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10
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Kuwayama T, Matsuura K, Mizukami Y, Kasahara S, Matsuda Y, Shibauchi T, Uwatoko Y, Fujiwara N. Pressure-induced Lifshitz transition in FeSe$_{0.88}$S$_{0.12}$ probed via $^{77}$Se-NMR. Pap Phys 2019. [DOI: 10.4279/pip.110003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Recently, FeSe$_{1-x}$S$_x$ systems have received much attention because of the unique pressure-temperature phase diagram. We performed $^{77}$Se-NMR measurements on a single crystal of FeSe$_{0.88}$S$_{0.12}$ to investigate its microscopic properties. The shift of $^{77}$Se spectra exhibits anomalous enhancement at $1.0~\mathrm{GPa}$, suggesting a topological change in the Fermi surfaces, so-called Lifshitz transition, occurs at $1.0~\mathrm{GPa}$. The magnetic fluctuation simultaneously changes its properties, which implies a change in the dominant nesting vector.
Edited by: A. Goñi, A. Cantarero, J. S. Reparaz
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11
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Komakura K, Oikawa D, Terawaki S, Sakamoto S, Mizukami Y, Sugawara K, Tsuruta D, Tokunaga F. 459 HOIPIN-1, a novel LUBAC inhibitor, suppresses the imiquimod-induced psoriasis-like skin inflammation in mice. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.535] [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: 10/27/2022]
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12
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Kasahara Y, Ohnishi T, Mizukami Y, Tanaka O, Ma S, Sugii K, Kurita N, Tanaka H, Nasu J, Motome Y, Shibauchi T, Matsuda Y. Majorana quantization and half-integer thermal quantum Hall effect in a Kitaev spin liquid. Nature 2018; 559:227-231. [DOI: 10.1038/s41586-018-0274-0] [Citation(s) in RCA: 448] [Impact Index Per Article: 74.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 04/24/2018] [Indexed: 11/09/2022]
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13
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Bando M, Mizukami Y, Nakajima K, Song Z, Takahashi T. Formation of a spiro compound via coupling of a cyclopentadienyl ligand with a diene moiety of titanacyclopentadiene. Dalton Trans 2017; 46:16408-16411. [PMID: 29139503 DOI: 10.1039/c7dt03789a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The treatment of titanacyclopentadienes with bismuth(iii) chloride gave spiro compounds in moderate yields. Two carbon atoms of the diene moiety of the titanacyclopentadiene were connected to one carbon atom of the Cp ligand. This is in sharp contrast to the formation of dihydroindene derivatives, where two carbon-carbon bonds were formed between the diene moiety and the adjacent two carbon atoms of the Cp ligand.
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Affiliation(s)
- Masayoshi Bando
- Institute for Catalysis and Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan.
| | - Yuki Mizukami
- Institute for Catalysis and Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan.
| | - Kiyohiko Nakajima
- Department of Chemistry, Aichi University of Education, Igaya, Kariya, Aichi 448-8542, Japan
| | - Zhiyi Song
- Institute for Catalysis and Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan.
| | - Tamotsu Takahashi
- Institute for Catalysis and Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan.
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14
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Matsuura K, Mizukami Y, Arai Y, Sugimura Y, Maejima N, Machida A, Watanuki T, Fukuda T, Yajima T, Hiroi Z, Yip KY, Chan YC, Niu Q, Hosoi S, Ishida K, Mukasa K, Kasahara S, Cheng JG, Goh SK, Matsuda Y, Uwatoko Y, Shibauchi T. Maximizing T c by tuning nematicity and magnetism in FeSe 1-x S x superconductors. Nat Commun 2017; 8:1143. [PMID: 29070845 PMCID: PMC5656606 DOI: 10.1038/s41467-017-01277-x] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 09/04/2017] [Indexed: 11/13/2022] Open
Abstract
A fundamental issue concerning iron-based superconductivity is the roles of electronic nematicity and magnetism in realising high transition temperature (T c). To address this issue, FeSe is a key material, as it exhibits a unique pressure phase diagram involving non-magnetic nematic and pressure-induced antiferromagnetic ordered phases. However, as these two phases in FeSe have considerable overlap, how each order affects superconductivity remains perplexing. Here we construct the three-dimensional electronic phase diagram, temperature (T) against pressure (P) and isovalent S-substitution (x), for FeSe1-x S x . By simultaneously tuning chemical and physical pressures, against which the chalcogen height shows a contrasting variation, we achieve a complete separation of nematic and antiferromagnetic phases. In between, an extended non-magnetic tetragonal phase emerges, where T c shows a striking enhancement. The completed phase diagram uncovers that high-T c superconductivity lies near both ends of the dome-shaped antiferromagnetic phase, whereas T c remains low near the nematic critical point.
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Affiliation(s)
- K Matsuura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Mizukami
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Arai
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Sugimura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - N Maejima
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - A Machida
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - T Watanuki
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - T Fukuda
- Materials Sciences Research Center, Japan Atomic Energy Agency (SPring-8/JAEA), Sayo, Hyogo, 679-5148, Japan
| | - T Yajima
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - Z Hiroi
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - K Y Yip
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Y C Chan
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Q Niu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S Hosoi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - K Ishida
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - K Mukasa
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - S Kasahara
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - J-G Cheng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
| | - S K Goh
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Y Matsuda
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Y Uwatoko
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - T Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan.
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15
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Takenaka T, Mizukami Y, Wilcox JA, Konczykowski M, Seiro S, Geibel C, Tokiwa Y, Kasahara Y, Putzke C, Matsuda Y, Carrington A, Shibauchi T. Full-Gap Superconductivity Robust against Disorder in Heavy-Fermion CeCu_{2}Si_{2}. Phys Rev Lett 2017; 119:077001. [PMID: 28949698 DOI: 10.1103/physrevlett.119.077001] [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: 05/17/2017] [Indexed: 06/07/2023]
Abstract
A key aspect of unconventional pairing by the antiferromagnetic spin-fluctuation mechanism is that the superconducting energy gap must have the opposite sign on different parts of the Fermi surface. Recent observations of non-nodal gap structure in the heavy-fermion superconductor CeCu_{2}Si_{2} were then very surprising, given that this material has long been considered a prototypical example of a superconductor where the Cooper pairing is magnetically mediated. Here we present a study of the effect of controlled point defects, introduced by electron irradiation, on the temperature-dependent magnetic penetration depth λ(T) in CeCu_{2}Si_{2}. We find that the fully gapped state is robust against disorder, demonstrating that low-energy bound states, expected for sign-changing gap structures, are not induced by nonmagnetic impurities. This provides bulk evidence for s_{++}-wave superconductivity without sign reversal.
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Affiliation(s)
- T Takenaka
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Y Mizukami
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - J A Wilcox
- H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, England
| | - M Konczykowski
- Laboratoire des Solides Irradiés, École Polytechnique, CNRS, CEA, Université Paris-Saclay, F-91128 Palaiseau, France
| | - S Seiro
- Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
- Institute for Solid State Physics, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - C Geibel
- Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
| | - Y Tokiwa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Center for Electronic Correlations and Magnetism, Institute of Physics, Augsburg University, 86159 Augsburg, Germany
| | - Y Kasahara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - C Putzke
- H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, England
| | - Y Matsuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - A Carrington
- H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, England
| | - T Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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16
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Mizukami Y, Sugawara K, Tsuruta D. 716 Sorafenib is a new stimulator for human skin-type mast cell degranulation and maturation. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.739] [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: 11/29/2022]
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17
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Sugawara K, Mizukami Y, Paus R, Tsuruta D. 646 Dissecting the effects of a stress-related mediator, corticotropin releasing hormone on skin and mucosal type mast cells biology in situ. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Kanno KI, Igarashi E, Mizukami Y, Nakajima K, Song Z, Takahashi T. Formation of Seven-Membered Carbocycles via 7- endo Mode Cyclization of Lithioheptatrienes. Org Lett 2016; 18:6217-6219. [DOI: 10.1021/acs.orglett.6b02956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ken-ichiro Kanno
- Institute
for Catalysis and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Eri Igarashi
- Institute
for Catalysis and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Yuki Mizukami
- Institute
for Catalysis and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Kiyohiko Nakajima
- Department
of Chemistry, Aichi University of Education, Igaya, Kariya 448-8542, Japan
| | - Zhiyi Song
- Institute
for Catalysis and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Tamotsu Takahashi
- Institute
for Catalysis and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
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19
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Sun JP, Matsuura K, Ye GZ, Mizukami Y, Shimozawa M, Matsubayashi K, Yamashita M, Watashige T, Kasahara S, Matsuda Y, Yan JQ, Sales BC, Uwatoko Y, Cheng JG, Shibauchi T. Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe. Nat Commun 2016; 7:12146. [PMID: 27431724 PMCID: PMC4960320 DOI: 10.1038/ncomms12146] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 06/05/2016] [Indexed: 11/24/2022] Open
Abstract
The coexistence and competition between superconductivity and electronic orders, such as spin or charge density waves, have been a central issue in high transition-temperature (Tc) superconductors. Unlike other iron-based superconductors, FeSe exhibits nematic ordering without magnetism whose relationship with its superconductivity remains unclear. Moreover, a pressure-induced fourfold increase of Tc has been reported, which poses a profound mystery. Here we report high-pressure magnetotransport measurements in FeSe up to ∼15 GPa, which uncover the dome shape of magnetic phase superseding the nematic order. Above ∼6 GPa the sudden enhancement of superconductivity (Tc≤38.3 K) accompanies a suppression of magnetic order, demonstrating their competing nature with very similar energy scales. Above the magnetic dome, we find anomalous transport properties suggesting a possible pseudogap formation, whereas linear-in-temperature resistivity is observed in the normal states of the high-Tc phase above 6 GPa. The obtained phase diagram highlights unique features of FeSe among iron-based superconductors, but bears some resemblance to that of high-Tc cuprates.
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Affiliation(s)
- J. P. Sun
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - K. Matsuura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - G. Z. Ye
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Science and Technology, Yunnan University, Kunming 650091, China
| | - Y. Mizukami
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - M. Shimozawa
- The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - K. Matsubayashi
- Department of Engineering Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
| | - M. Yamashita
- The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - T. Watashige
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - S. Kasahara
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Y. Matsuda
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - J. -Q. Yan
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - B. C. Sales
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Y. Uwatoko
- The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - J. -G. Cheng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - T. Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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20
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Sugiyama Y, Sasajima J, Mizukami Y, Koizumi K, Kawamoto T, Ono Y, Karasaki H, Tanabe H, Fujiya M, Kohgo Y. Gli2 protein expression level is a feasible marker of ligand-dependent hedgehog activation in pancreatic neoplasms. POL J PATHOL 2016; 67:136-44. [PMID: 27543868 DOI: 10.5114/pjp.2016.61449] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
The hedgehog pathway is known to promote proliferation of pancreatic ductal adenocarcinoma (PDA) and has been shown to restrain tumor progression. To understand how hedgehog causes these effects, we sought to carefully examine protein expression of hedgehog signaling components during different tumor stages. Genetically engineered mice, Pdx1-Cre;LSL-KrasG12D and Pdx1-Cre;LSL-KrasG12D;p53lox/+, were utilized to model distinct phases of tumorigenesis, pancreatic intraepithelial neoplasm (PanIN) and PDA. Human pancreatic specimens of intraductal papillary mucinous neoplasm (IPMN) and PDA were also employed. PanIN and IPMN lesions highly express Sonic Hedgehog, at a level that is slightly higher than that observed in PDA. GLI2 protein is also expressed in both PanIN/IPMN and PDA. Although there was no difference in the nuclear staining, the cytoplasmic GLI2 level in PDA was modest in comparison to that in PanIN/IPMN. Hedgehog interacting protein was strongly expressed in the precursors, whereas the level in PDA was significantly attenuated. There were no differences in expression of Patched1 at early and late stages. Finally, a strong correlation between Sonic Hedgehog and GLI2 staining was found in both human and murine pancreatic tumors. The results indicate that the GLI2 protein level could serve as a feasible marker of ligand-dependent hedgehog activation in pancreatic neoplasms.
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MESH Headings
- Adenocarcinoma, Mucinous/metabolism
- Adenocarcinoma, Mucinous/pathology
- Adenocarcinoma, Papillary/metabolism
- Adenocarcinoma, Papillary/pathology
- Aged
- Aged, 80 and over
- Animals
- Biomarkers, Tumor/analysis
- Carcinoma in Situ/metabolism
- Carcinoma in Situ/pathology
- Carcinoma, Pancreatic Ductal/metabolism
- Carcinoma, Pancreatic Ductal/pathology
- Disease Models, Animal
- Female
- Hedgehog Proteins/metabolism
- Humans
- Immunohistochemistry
- Kruppel-Like Transcription Factors/analysis
- Kruppel-Like Transcription Factors/biosynthesis
- Ligands
- Male
- Mice
- Mice, Transgenic
- Middle Aged
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- Zinc Finger Protein Gli2
- Pancreatic Neoplasms
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Affiliation(s)
| | - J Sasajima
- Junpei Sasajima, MD, PhD, Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa, Hokkaido 078-8510, Japan, tel. +81-166682462, fax +81-166682469, e-mail:
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21
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Sugawara K, Natsumi A, Yasumizu M, Mizukami Y, Yonamine A, Paus R, Tsuruta D. 438 Laminin-511 is a new player in the development of psoriasis and controlled via cannabinoid receptor type 1. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.473] [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: 10/21/2022]
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22
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Affiliation(s)
- Yuki Mizukami
- Catalysis Research Center
and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Zhiyi Song
- Catalysis Research Center
and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Tamotsu Takahashi
- Catalysis Research Center
and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
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23
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Putzke C, Walmsley P, Fletcher JD, Malone L, Vignolles D, Proust C, Badoux S, See P, Beere HE, Ritchie DA, Kasahara S, Mizukami Y, Shibauchi T, Matsuda Y, Carrington A. Anomalous critical fields in quantum critical superconductors. Nat Commun 2014; 5:5679. [PMID: 25477044 PMCID: PMC4268691 DOI: 10.1038/ncomms6679] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 10/28/2014] [Indexed: 11/22/2022] Open
Abstract
Fluctuations around an antiferromagnetic quantum critical point (QCP) are believed to lead to unconventional superconductivity and in some cases to high-temperature superconductivity. However, the exact mechanism by which this occurs remains poorly understood. The iron-pnictide superconductor BaFe2(As1−xPx)2 is perhaps the clearest example to date of a high-temperature quantum critical superconductor, and so it is a particularly suitable system to study how the quantum critical fluctuations affect the superconducting state. Here we show that the proximity of the QCP yields unexpected anomalies in the superconducting critical fields. We find that both the lower and upper critical fields do not follow the behaviour, predicted by conventional theory, resulting from the observed mass enhancement near the QCP. Our results imply that the energy of superconducting vortices is enhanced, possibly due to a microscopic mixing of antiferromagnetism and superconductivity, suggesting that a highly unusual vortex state is realized in quantum critical superconductors. Superconductivity in the iron pnictides is believed to be related to quantum critical fluctuations. Putzke et al. observe unexpected anomalies in the critical fields of BaFe2(As1−xPx)2 that emerge close to its magnetic critical point, which they argue is a generic feature of quantum critical superconductivity.
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Affiliation(s)
- C Putzke
- H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - P Walmsley
- H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - J D Fletcher
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK
| | - L Malone
- H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - D Vignolles
- Laboratoire National des Champs Magnétiques Intenses (CNRS-INSA-UJF-UPS), 31400 Toulouse, France
| | - C Proust
- Laboratoire National des Champs Magnétiques Intenses (CNRS-INSA-UJF-UPS), 31400 Toulouse, France
| | - S Badoux
- Laboratoire National des Champs Magnétiques Intenses (CNRS-INSA-UJF-UPS), 31400 Toulouse, France
| | - P See
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, UK
| | - H E Beere
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, UK
| | - D A Ritchie
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, UK
| | - S Kasahara
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Y Mizukami
- 1] Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan [2] Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
| | - T Shibauchi
- 1] Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan [2] Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
| | - Y Matsuda
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - A Carrington
- H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
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Mizukami Y, Konczykowski M, Kawamoto Y, Kurata S, Kasahara S, Hashimoto K, Mishra V, Kreisel A, Wang Y, Hirschfeld PJ, Matsuda Y, Shibauchi T. Disorder-induced topological change of the superconducting gap structure in iron pnictides. Nat Commun 2014; 5:5657. [PMID: 25430419 DOI: 10.1038/ncomms6657] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 10/24/2014] [Indexed: 11/09/2022] Open
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Mizukami Y, Higuchi S. P-15 * DRINKING BEHAVIOR AMONG UNIVERSITY FRESHMEN AND CONTENTS OF DRINKING EDUCATION. Alcohol Alcohol 2014. [DOI: 10.1093/alcalc/agu054.15] [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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Mizukami Y, Li H, Nakajima K, Song Z, Takahashi T. Coupling of Titanacyclopentadienes with a Cp Ligand and Elimination of One Substituent. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Mizukami Y, Li H, Nakajima K, Song Z, Takahashi T. Coupling of Titanacyclopentadienes with a Cp Ligand and Elimination of One Substituent. Angew Chem Int Ed Engl 2014; 53:8899-903. [DOI: 10.1002/anie.201403226] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Indexed: 11/05/2022]
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Tonegawa S, Kasahara S, Fukuda T, Sugimoto K, Yasuda N, Tsuruhara Y, Watanabe D, Mizukami Y, Haga Y, Matsuda TD, Yamamoto E, Onuki Y, Ikeda H, Matsuda Y, Shibauchi T. Direct observation of lattice symmetry breaking at the hidden-order transition in URu2Si2. Nat Commun 2014; 5:4188. [PMID: 24943003 DOI: 10.1038/ncomms5188] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 05/22/2014] [Indexed: 11/09/2022] Open
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Shimozawa M, Goh SK, Endo R, Kobayashi R, Watashige T, Mizukami Y, Ikeda H, Shishido H, Yanase Y, Terashima T, Shibauchi T, Matsuda Y. Controllable Rashba spin-orbit interaction in artificially engineered superlattices involving the heavy-fermion superconductor CeCoIn5. Phys Rev Lett 2014; 112:156404. [PMID: 24785062 DOI: 10.1103/physrevlett.112.156404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Indexed: 06/03/2023]
Abstract
By using a molecular beam epitaxy technique, we fabricate a new type of superconducting superlattices with controlled atomic layer thicknesses of alternating blocks between the heavy-fermion superconductor CeCoIn5, which exhibits a strong Pauli pair-breaking effect, and nonmagnetic metal YbCoIn5. The introduction of the thickness modulation of YbCoIn5 block layers breaks the inversion symmetry centered at the superconducting block of CeCoIn5. This configuration leads to dramatic changes in the temperature and angular dependence of the upper critical field, which can be understood by considering the effect of the Rashba spin-orbit interaction arising from the inversion symmetry breaking and the associated weakening of the Pauli pair-breaking effect. Since the degree of thickness modulation is a design feature of this type of superlattices, the Rashba interaction and the nature of pair breaking are largely tunable in these modulated superlattices with strong spin-orbit coupling.
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Affiliation(s)
- M Shimozawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S K Goh
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan and Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - R Endo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Kobayashi
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Watashige
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Mizukami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Ikeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Shishido
- Department of Physics and Electronics, Osaka Prefecture University, Osaka 599-8531, Japan
| | - Y Yanase
- Department of Physics, Niigata University, Niigata 950-2181, Japan
| | - T Terashima
- Research Center for Low Temperature and Materials Science, Kyoto University, Kyoto 606-8501, Japan
| | - T Shibauchi
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Matsuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
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Garcia Martin A, Fernandez Golfin C, Salido Tahoces L, Fernandez Santos S, Jimenez Nacher J, Moya Mur J, Velasco Valdazo E, Hernandez Antolin R, Zamorano Gomez J, Veronesi F, Corsi C, Caiani E, Lamberti C, Tsang W, Holmgren C, Guo X, Bateman M, Iaizzo P, Vannier M, Lang R, Patel A, Adamayn K, Tumasyan LR, Chilingaryan A, Nasr G, Eleraki A, Farouk N, Axelsson A, Langhoff L, Jensen M, Vejlstrup N, Iversen K, Bundgaard H, Watanabe T, Iwai-Takano M, Attenhofer Jost CH, Pfyffer M, Seifert B, Scharf C, Candinas R, Medeiros-Domingo A, Chin JY, Yoon H, Vollbon W, Singbal Y, Rhodes K, Wahi S, Katova TM, Simova II, Hristova K, Kostova V, Pauncheva B, Bircan A, Sade L, Eroglu S, Pirat B, Okyay K, Bal U, Muderrisoglu H, Heggemann F, Buggisch H, Welzel G, Doesch C, Hansmann J, Schoenberg S, Borggrefe M, Wenz F, Papavassiliu T, Lohr F, Roussin I, Drakopoulou M, Rosen S, Sharma R, Prasad S, Lyon A, Carpenter J, Senior R, Breithardt OA, Razavi H, Arya A, Nabutovsky Y, Ryu K, Gaspar T, Kosiuk J, Eitel C, Hindricks G, Piorkowski C, Pires S, Nunes A, Cortez-Dias N, Belo A, Zimbarra Cabrita I, Sousa C, Pinto F, Baron T, Johansson K, Flachskampf F, Christersson C, Pires S, Cortez-Dias N, Nunes A, Belo A, Zimbarra Cabrita I, Sousa C, Pinto F, Santoro A, Federico Alvino F, Giovanni Antonelli G, Raffaella De Vito R, Roberta Molle R, Sergio Mondillo S, Gustafsson M, Alehagen U, Johansson P, Tsukishiro Y, Onishi T, Chimura M, Yamada S, Taniguchi Y, Yasaka Y, Kawai H, Souza JRM, Zacharias LGT, Pithon KR, Ozahata TM, Cliquet AJ, Blotta MH, Nadruz WJ, Fabiani I, Conte L, Cuono C, Liga R, Giannini C, Barletta V, Nardi C, Delle Donne M, Palagi C, Di Bello V, Glaveckaite S, Valeviciene N, Palionis D, Laucevicius A, Hristova K, Bogdanova V, Ferferieva V, Shiue I, Castellon X, Boles U, Rakhit R, Shiu MF, Gilbert T, Papachristidis A, Henein MY, Westholm C, Johnson J, Jernberg T, Winter R, Ghosh Dastidar A, Augustine D, Cengarle M, Mcalindon E, Bucciarelli-Ducci C, Nightingale A, Onishi T, Watanabe T, Fujita M, Mizukami Y, Sakata Y, Nakatani S, Nanto S, Uematsu M, Saraste A, Luotolahti M, Varis A, Vasankari T, Tunturi S, Taittonen M, Rautakorpi P, Airaksinen J, Ukkonen H, Knuuti J, Boshchenko A, Vrublevsky A, Karpov R, Yoshikawa H, Suzuki M, Hashimoto G, Kusunose Y, Otsuka T, Nakamura M, Sugi K, Rosner S, Orban M, Lesevic H, Karl M, Hadamitzky M, Sonne C, Panaro A, Martinez F, Huguet M, Moral S, Palet J, Oller G, Cuso I, Jornet A, Rodriguez Palomares J, Evangelista A, Stoebe S, Tarr A, Pfeiffer D, Hagendorff A, Gilmanov D, Baroni M, Cerone E, Galli E, Berti S, Glauber M, Soesanto A, Yuniadi Y, Mansyur M, Kusmana D, Venkateshvaran A, Dash PK, Sola S, Govind SC, Shahgaldi K, Winter R, Brodin LA, Manouras A, Dokainish H, Sadreddini M, Nieuwlaat R, Lonn E, Healey J, Nguyen V, Cimadevilla C, Dreyfus J, Codogno I, Vahanian A, Messika-Zeitoun D, Lim YJ, Kawamura A, Kawano S, Polte C, Gao S, Lagerstrand K, Cederbom U, Bech-Hanssen O, Baum J, Beeres F, Van Hall S, Boering Y, Zeus T, Kehmeier E, Kelm M, Balzer J, Della Mattia A, Pinamonti B, Abate E, Nicolosi G, Proclemer A, Bassetti M, Luzzati R, Sinagra G, Hlubocka Z, Jiratova K, Dostalova G, Hlubocky J, Dohnalova A, Linhart A, Palecek T, Sonne C, Lesevic H, Karl M, Rosner S, Hadamitzky M, Ott I, Malev E, Reeva S, Zemtsovsky E, Igual Munoz B, Alonso Fernandez Pau P, Miro Palau Vicente V, Maceira Gonzalez Alicia A, Estornell Erill J, Andres La Huerta A, Donate Bertolin L, Valera Martinez F, Salvador Sanz Antonio A, Montero Argudo Anastasio A, Nemes A, Kalapos A, Domsik P, Chadaide S, Sepp R, Forster T, Onaindia J, Arana X, Cacicedo A, Velasco S, Rodriguez I, Capelastegui A, Sadaba M, Gonzalez J, Salcedo A, Laraudogoitia E, Archontakis S, Gatzoulis K, Vlasseros I, Arsenos P, Tsiachris D, Vouliotis A, Sideris S, Karistinos G, Kalikazaros I, Stefanadis C, Ancona R, Comenale Pinto S, Caso P, Coppola M, Arenga F, Cavallaro C, Vecchione F, D'onofrio A, Calabro R, Correia CE, Moreira D, Cabral C, Santos J, Cardoso J, Igual Munoz B, Maceira Gonzalez A, Estornell Erill Jordi J, Jimenez Carreno R, Arnau Vives M, Monmeneu Menadas J, Domingo-Valero D, Sanchez Fernandez E, Montero Argudo Anastasio A, Zorio Grima E, Cincin A, Tigen K, Karaahmet T, Dundar C, Sunbul M, Guler A, Bulut M, Basaran Y, Mordi I, Carrick D, Berry C, Tzemos N, Cruz I, Ferreira A, Rocha Lopes L, Joao I, Almeida A, Fazendas P, Cotrim C, Pereira H, Ochoa JP, Fernandez A, Filipuzzi J, Casabe J, Salmo J, Vaisbuj F, Ganum G, Di Nunzio H, Veron L, Guevara E, Salemi V, Nerbass F, Portilho N, Ferreira Filho J, Pedrosa R, Arteaga-Fernandez E, Mady C, Drager L, Lorenzi-Filho G, Marques J, Almeida AMG, Menezes M, Silva G, Placido R, Amaro C, Brito D, Diogo A, Lourenco MR, Azevedo O, Moutinho J, Nogueira I, Machado I, Portugues J, Quelhas I, Lourenco A, Calore C, Muraru D, Melacini P, Badano L, Mihaila S, Puma L, Peluso D, Casablanca S, Ortile A, Iliceto S, Kang MK, Yu S, Park J, Kim S, Park T, Mun HS, C S, Cho SR, Han S, Lee N, Khalifa EA, Hamodraka E, Kallistratos M, Zacharopoulou I, Kouremenos N, Mavropoulos D, Tsoukas A, Kontogiannis N, Papanikolaou N, Tsoukanas K, Manolis A, Villagraz Tecedor L, Jimenez Lopez Guarch C, Alonso Chaterina S, Blazquez Arrollo L, Lopez Melgar B, Veitia Sarmiento A, Mayordomo Gomez S, Escribano Subias M, Lichodziejewska B, Kurnicka K, Goliszek S, Dzikowska Diduch O, Kostrubiec M, Krupa M, Grudzka K, Ciurzynski M, Palczewski P, Pruszczyk P, Sakata K, Ishiguro M, Kimura G, Uesugo Y, Takemoto K, Minamishima T, Futuya M, Matsue S, Satoh T, Yoshino H, Signorello M, Gianturco L, Colombo C, Stella D, Atzeni F, Boccassini L, Sarzi-Puttini P, Turiel M, Kinova E, Deliiska B, Krivoshiev S, Goudev A, De Stefano F, Santoro C, Buonauro A, Schiano-Lomoriello V, Muscariello R, De Palma D, Galderisi M, Ranganadha Babu B, Chidambaram S, Sangareddi V, Dhandapani V, Ravi M, Meenakshi K, Muthukumar D, Swaminathan N, Ravishankar G, Bruno RM, Giardini G, Catizzo B, Brustia R, Malacrida S, Armenia S, Cauchy E, Pratali L, Cesana F, Alloni M, Vallerio P, De Chiara B, Musca F, Belli O, Ricotta R, Siena S, Moreo A, Giannattasio C, Magnino C, Omede' P, Avenatti E, Presutti D, Sabia L, Moretti C, Bucca C, Gaita F, Veglio F, Milan A, Eichhorn J, Springer W, Helling A, Alarajab A, Loukanov T, Ikeda M, Kijima Y, Akagi T, Toh N, Oe H, Nakagawa K, Tanabe Y, Watanabe N, Ito H, Hascoet S, Hadeed K, Marchal P, Bennadji A, Peyre M, Dulac Y, Heitz F, Alacoque X, Chausseray G, Acar P, Kong W, Ling L, Yip J, Poh K, Vassiliou V, Rekhraj S, Hoole S, Watkinson O, Kydd A, Boyd J, Mcnab D, Densem C, Shapiro L, Rana B, Potpara T, Djikic D, Polovina M, Marcetic Z, Peric V, Lip G, Gaudron P, Niemann M, Herrmann S, Hu K, Strotmann J, Beer M, Bijnens B, Liu D, Ertl G, Weidemann F, Peric V, Jovanovic A, Djikic D, Otasevic P, Kochanowski J, Piatkowski R, Scislo P, Grabowski M, Marchel M, Opolski G, Bandera F, Guazzi M, Arena R, Corra U, Ghio S, Forfia P, Rossi A, Dini F, Cahalin L, Temporelli L, Rallidis L, Tsangaris I, Makavos G, Anthi A, Pappas A, Orfanos S, Lekakis J, Anastasiou-Nana M, Kuznetsov VA, Krinochkin DV, Yaroslavskaya EI, Zaharova EH, Pushkarev GS, Mizia-Stec K, Wita K, Mizia M, Loboz-Grudzien K, Szwed H, Kowalik I, Kukulski T, Gosciniak P, Kasprzak J, Plonska-Gosciniak E, Cimino S, Pedrizzetti G, Tonti G, Cicogna F, Petronilli V, De Luca L, Iacoboni C, Agati L, Hoffmann R, Barletta G, Von Bardeleben S, Kasprzak J, Greis C, Vanoverschelde J, Becher H, Galrinho A, Moura Branco L, Fiarresga A, Cacela D, Ramos R, Cruz Ferreira R, Van Den Oord S, Akkus Z, Bosch J, Renaud G, Sijbrands E, Verhagen H, Van Der Lugt A, Van Der Steen A, Schinkel A, Mordi I, Tzemos N, Stanton T, Delgado D, Yu E, Drakopoulou M, Gonzalez-Gonzalez A, Karonis T, Roussin I, Babu-Narayan S, Swan L, Senior R, Li W, Parisi V, Pagano G, Pellegrino T, Femminella G, De Lucia C, Formisano R, Cuocolo A, Perrone Filardi P, Leosco D, Rengo G, Unlu S, Farsalinos K, Amelot K, Daraban A, Ciarka A, Delcroix M, Voigt J, Miskovic A, Poerner T, Goebel B, Stiller C, Moritz A, Sakata K, Uesugo Y, Kimura G, Ishiguro M, Takemoto K, Minamishima T, Futuya M, Satoh T, Yoshino H, Miyoshi T, Tanaka H, Kaneko A, Matsumoto K, Imanishi J, Motoji Y, Mochizuki Y, Minami H, Kawai H, Hirata K, Wutthimanop A, See O, Vathesathokit P, Yamwong S, Sritara P, Rosner A, Kildal A, Stenberg T, Myrmel T, How O, Capriolo M, Frea S, Giustetto C, Scrocco C, Benedetto S, Grosso Marra W, Morello M, Gaita F, Garcia-Gonzalez P, Cozar-Santiago P, Chacon-Hernandez N, Ferrando-Beltran M, Fabregat-Andres O, De La Espriella-Juan R, Fontane-Martinez C, Jurado-Sanchez R, Morell-Cabedo S, Ridocci-Soriano F, Mihaila S, Piasentini E, Muraru D, Peluso D, Casablanca S, Puma L, Naso P, Iliceto S, Vinereanu D, Badano L, Tarzia P, Villano A, Figliozzi S, Russo G, Parrinello R, Lamendola P, Sestito A, Lanza G, Crea F, Sulemane S, Panoulas V, Bratsas A, Frankel A, Nihoyannopoulos P, Dores H, Andrade M, Almeida M, Goncalves P, Branco P, Gaspar A, Gomes A, Horta E, Carvalho M, Mendes M, Yue W, Li X, Chen Y, Luo Y, Gu P, Yiu K, Siu C, Tse H, Cho E, Lee S, Hwang B, Kim D, Jang S, Jeon H, Youn H, Kim J. Poster session Thursday 12 December - PM: 12/12/2013, 14:00-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Walmsley P, Putzke C, Malone L, Guillamón I, Vignolles D, Proust C, Badoux S, Coldea AI, Watson MD, Kasahara S, Mizukami Y, Shibauchi T, Matsuda Y, Carrington A. Quasiparticle mass enhancement close to the quantum critical point in BaFe2(As(1-x)P(x))2. Phys Rev Lett 2013; 110:257002. [PMID: 23829753 DOI: 10.1103/physrevlett.110.257002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/10/2013] [Indexed: 06/02/2023]
Abstract
We report a combined study of the specific heat and de Haas-van Alphen effect in the iron-pnictide superconductor BaFe2(As(1-x)P(x))2. Our data when combined with results for the magnetic penetration depth give compelling evidence for the existence of a quantum critical point close to x=0.30 which affects the majority of the Fermi surface by enhancing the quasiparticle mass. The results show that the sharp peak in the inverse superfluid density seen in this system results from a strong increase in the quasiparticle mass at the quantum critical point.
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Affiliation(s)
- P Walmsley
- H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, United Kingdom
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Nakano K, Watanabe M, Matsunari H, Matsuda T, Honda K, Maehara M, Kanai T, Hayashida G, Kobayashi M, Umeyama K, Fujishiro S, Mizukami Y, Nagaya M, Hanazono Y, Nagashima H. 297 PRODUCTION OF CHIMERIC PORCINE FETUSES BY AGGREGATION METHOD USING PARTHENOGENETIC EMBRYOS. Reprod Fertil Dev 2013. [DOI: 10.1071/rdv25n1ab297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Porcine induced pluripotent stem (iPS) cells are considered to be an invaluable research tool in translational research with pigs as a large animal model. Pluripotency of the iPS cells needs to be verified by their competence to contribute to chimera formation. The aim of the present study is to establish feasible system to create chimeric pig fetuses using parthenogenetic embryos. In Experiment 1, inner cell mass (ICM) was isolated by immunosurgery from Day 6 blastocysts obtained by parthenogenetic activation of in vitro matured (IVM) oocytes. Isolated ICM were used as the donor cells after staining with fluorescent carbocyanine dye (DiI). Using parthenogenetic morulae or 4- to 8-cell embryos as the host embryos, chimeric embryos were prepared by injection or aggregation method. Injection of ICM was performed by micromanipulation: a single ICM was directly injected into the centre portion of the host morulae. In the aggregation method, a single ICM was aggregated with blastomeres isolated from 2 host embryos at the morula or 4- to 8-cell stage in a micro-well (400 µm diameter, 300 µm deep). The chimeric embryos were cultured in PZM-5 (Yoshioka et al. 2008) for 2 to 3 days to examine development to blastocysts and incorporation of donor ICM cells into the resultant blastocysts ICM (ICM chimerism). In Experiment 2, donor blastomeres isolated from a parthenogenetic morula or 4- to 8-cell embryo were stained by DiI and aggregated with a parthenogenetic host embryo at the morula or 4- to 8-cell stage, and the in vitro development to the blastocyst stage and the ICM chimerism were examined. In Experiment 3, ICM isolated from IVF blastocysts harboring humanized Kusabira-Orange (huKO) gene were used as donor cells. Donor ICM were aggregated with the host embryos at the morula or 4- to 8-cell stage, and the resultant blastocysts were transferred to 4 recipient gilts to collect fetuses on Day 18. Results of Experiments 1 and 2 are summarised in Table 1. Combination of the donor ICM and host morulae yielded high rates of blastocyst formation (~95%) and ICM chimerism (~85%), regardless of the method used (injection or aggregation). Transfer of 73 blastocysts developed from host morulae to 2 recipients (Experiment 3) gave rise to 25 (34.2%) fetuses, of which 6 (24.0%) were confirmed to be chimeric by their clear orange fluorescence and immunostaining by anti-huKO antibody. Of 22 (40.7%) fetuses obtained after transfer of 54 blastocysts derived from 4- to 8-cell host embryos to 2 recipients, 3 (13.6%) were chimeric. Contribution of the donor cells in the tissues of the chimeric fetuses measured by image analysis software (ImageJ, NIH, Bethesda, MD, USA) ranged between 16.1 and 65.2%. These results demonstrate that the aggregation method using parthenogenetic host embryos is an efficient means to produce chimeric pig fetuses, and thereby feasible for verification of pluripotent cells such as iPS cells.
Table 1.In vitro development of injected or aggregated porcine embryos
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Mizukami Y, Kosemura D, Numasawa Y, Ohshita Y, Ogura A. Evaluation of quantum confinement effect in nanocrystal Si dot layer by Raman spectroscopy. J Nanosci Nanotechnol 2012; 12:8700-8703. [PMID: 23421269 DOI: 10.1166/jnn.2012.6810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Quantum confinement effect in the nanocrystal-Si (nc-Si) was evaluated by Raman spectroscopy. The nc-Si dot layers were fabricated by the H2 plasma treatment for the nucleation site formation followed by the SiH4 irradiation for the nc-Si growth. Post-oxidation annealing was also performed to improve the crystalline quality. After post-oxidation annealing for 5 or 10 min, the asymmetric broadening on the lower frequency sides in Raman spectra were obtained, which can be attributed to the phonon confinement effect in nc-Si. Furthermore we confirmed that hydrostatic stress of approximately 500 MPa was induced in nc-Si after post-oxidation annealing.
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Affiliation(s)
- Y Mizukami
- School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki-shi, Kanagawa, Japan
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Shioi N, Ogawa E, Mizukami Y, Abe S, Hayashi R, Terada S. Small serum protein-1 changes the susceptibility of an apoptosis-inducing metalloproteinase HV1 to a metalloproteinase inhibitor in habu snake (Trimeresurus flavoviridis). J Biochem 2012; 153:121-9. [PMID: 23100271 DOI: 10.1093/jb/mvs127] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Viperidae snakes containing various venomous proteins also have several anti-toxic proteins in their sera. However, the physiological function of serum protein has been elucidated incompletely. Small serum protein (SSP)-1 is a major component of the SSPs isolated from the serum of a Japanese viper, the habu snake (Trimeresurus flavoviridis). It exists in the blood as a binary complex with habu serum factor (HSF), a snake venom metalloproteinase inhibitor. Affinity chromatography of the venom on an SSP-1-immobilized column identified HV1, an apoptosis-inducing metalloproteinase, as the target protein of SSP-1. Biacore measurements revealed that SSP-1 was bound to HV1 with a dissociation constant of 8.2 × 10⁻⁸ M. However, SSP-1 did not inhibit the peptidase activity of HV1. Although HSF alone showed no inhibitory activity or binding affinity to HV1, the SSP-1-HSF binary complex bound to HV1 formed a ternary complex that non-competitively inhibited the peptidase activity of HV1 with a inhibition constant of 5.1 ± 1.3 × 10⁻⁹ M. The SSP-1-HSF complex also effectively suppressed the apoptosis of vascular endothelial cells and caspase 3 activation induced by HV1. Thus, SSP-1 is a unique protein that non-covalently attaches to HV1 and changes its susceptibility to HSF.
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Affiliation(s)
- Narumi Shioi
- Department of Chemistry, Faculty of Science, Fukuoka University, Fukuoka 814-0180, Japan.
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35
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Goh SK, Mizukami Y, Shishido H, Watanabe D, Yasumoto S, Shimozawa M, Yamashita M, Terashima T, Yanase Y, Shibauchi T, Buzdin AI, Matsuda Y. Anomalous upper critical field in CeCoIn5/YbCoIn5 superlattices with a Rashba-type heavy Fermion interface. Phys Rev Lett 2012; 109:157006. [PMID: 23102358 DOI: 10.1103/physrevlett.109.157006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Indexed: 06/01/2023]
Abstract
We report a highly unusual angular variation of the upper critical field (H(c2)) in epitaxial superlattices CeCoIn(5)(n)/YbCoIn(5)(5), formed by alternating layers of n and a 5 unit-cell thick heavy-fermion superconductor CeCoIn(5) with a strong Pauli effect and normal metal YbCoIn(5), respectively. For the n=3 superlattice, H(c2)(θ) changes smoothly as a function of the field angle θ. However, close to the superconducting transition temperature, H(c2)(θ) exhibits a cusp near the parallel field (θ=0°). This cusp behavior disappears for n=4 and 5 superlattices. This sudden disappearance suggests the relative dominance of the orbital depairing effect in the n=3 superlattice, which may be due to the suppression of the Pauli effect in a system with local inversion symmetry breaking. Taking into account the temperature dependence of H(c2)(θ) as well, our results suggest that some exotic superconducting states, including a helical superconducting state, might be realized at high magnetic fields.
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Affiliation(s)
- S K Goh
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Japan
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36
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Ando K, Fujiya M, Ito T, Sugiyama R, Nata T, Nomura Y, Ueno N, Kashima S, Ishikawa C, Inaba Y, Moriichi K, Okamoto K, Ikuta K, Tanabe H, Tokusashi Y, Miyokawa N, Watari J, Mizukami Y, Kohgo Y. A pseudosarcomatous lesion resembling a malignant tumor of the esophagocardiac junction, diagnosed by a total biopsy with endoscopic surgery. Endoscopy 2012; 44 Suppl 2 UCTN:E21-2. [PMID: 22396258 DOI: 10.1055/s-0031-1291502] [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: 12/10/2022]
Affiliation(s)
- K Ando
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
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37
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Noguchi M, Earashi M, Ohnishi I, Kitagawa H, Fusida S, Miyazaki I, Mizukami Y. Relationship between nm23 expression and axillary and internal mammary lymph-node metastases in invasive breast-cancer. Oncol Rep 2012; 1:795-9. [PMID: 21607443 DOI: 10.3892/or.1.4.795] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We examined the relationship between nm23 expression and clinicopathological variables in 144 patients with invasive breast cancer to assess the role of nm23 expression in estimating prognosis. Expression of nm23 was significantly associated with axillary lymph node (AX) metastases (p=0.0359) and internal mammary lymph node (IMN) metastases (p=0.0146), but not with age, menopausal status, histological type or grade, or tumor size. A univariate study revealed that survival significantly correlated with tumor size, AX and IMN metastases, whereas nm23 expression did not appear to be a significant prognostic factor. Among patients with negative AX, however, survival in patients without nm23 expression was lower than in those with nm23 expression (p=0.0778). Survival in patients with IMN metastases was significantly lower than those without IMN metastases among patients with positive AX (p=0.0073). In a multivariate study, AX and IMN metastases, and nm23 expression appeared to be significant prognostic factors for survival. This study suggests that nm23 expression may be an additional prognostic factor in patients with negative AX, while IMN metastases are an additional prognostic factor in those with positive AX.
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Affiliation(s)
- M Noguchi
- KANAZAWA UNIV HOSP,SCH MED,DEPT SURG 2,KANAZAWA,ISHIKAWA 920,JAPAN. KANAZAWA UNIV HOSP,SCH MED,PATHOL SECT,KANAZAWA,ISHIKAWA 920,JAPAN
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38
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Noguchi M, Kitagawa H, Kinoshita K, Miyazaki I, Saito Y, Mizukami Y. Prognostic-significance of p53 and C-erbb-2 expression in operable breast-cancer. Int J Oncol 2012; 2:587-91. [PMID: 21573596 DOI: 10.3892/ijo.2.4.587] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We analyzed associations among p53 and c-erbB-2 expression and clinicopathologic variables and, then ascertained whether p53 and/or c-erbB-2 expression would be useful for estimating prognosis in 105 breast cancer patients. There was no significant association between p53 and c-erbB-2 expression, but the combination of p53 and c-erbB-2 expression was significantly associated with axillary lymph node metastases. Although both p53 and c-erbB-2 expressions were significant prognostic factors by univariate analysis, they did not appear to be independent prognostic factors by multivariate analysis in which nodal status was introduced using the Cox model. When nodal status was excluded, however, p53 and c-erbB-2 expression each had independent prognostic value.
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Affiliation(s)
- M Noguchi
- KANAZAWA UNIV HOSP,SCH MED,DEPT SURG 2,KANAZAWA 920,JAPAN. KANAZAWA UNIV HOSP,SCH MED,DEPT RADIOL,KANAZAWA 920,JAPAN. KANAZAWA UNIV HOSP,SCH MED,PATHOL SECT,KANAZAWA 920,JAPAN
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39
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Noguchi M, Earashi M, Ohnishi I, Kinoshita K, Thomas M, Fusida S, Miyazaki I, Mizukami Y. Nm23 and C-erbb-2 expression in invasive breast-cancer. Oncol Rep 2012; 1:523-8. [PMID: 21607396 DOI: 10.3892/or.1.3.523] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We investigated whether nm23 and/or c-erbB-2 expression are useful for estimating the prognosis of invasive breast cancer patients. nm23 expression was significantly correlated with axillary (AX) and internal mammary lymph node (IMN) metastases, whereas c-erbB-2 expression was significantly correlated only with AX metastases. However, a univariate study revealed that survival was correlated significantly with tumor size, AX and IMN metastases, and c-erbB-2 expression, whereas nm23 expression was not an important prognostic factor. In a multivariate study, only AX and IMN metastases were significant prognostic factors. When AX and IMN metastases were excluded from the Cox model, only c-erbB-2 expression had independent prognostic value for survival. Therefore, we conclude that nm23 and/or c-erbB-2 expression may reflect the metastatic potential of breast cancer, but their prognostic value in combination is limited.
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Affiliation(s)
- M Noguchi
- KANAZAWA UNIV HOSP,SCH MED,DEPT SURG 2,KANAZAWA,ISHIKAWA 920,JAPAN. KANAZAWA UNIV HOSP,SCH MED,PATHOL SECT,KANAZAWA,ISHIKAWA 920,JAPAN
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40
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Hashimoto K, Cho K, Shibauchi T, Kasahara S, Mizukami Y, Katsumata R, Tsuruhara Y, Terashima T, Ikeda H, Tanatar MA, Kitano H, Salovich N, Giannetta RW, Walmsley P, Carrington A, Prozorov R, Matsuda Y. A sharp peak of the zero-temperature penetration depth at optimal composition in BaFe2(As(1-x)P(x))2. Science 2012; 336:1554-7. [PMID: 22723416 DOI: 10.1126/science.1219821] [Citation(s) in RCA: 243] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
In a superconductor, the ratio of the carrier density, n, to its effective mass, m*, is a fundamental property directly reflecting the length scale of the superfluid flow, the London penetration depth, λ(L). In two-dimensional systems, this ratio n/m* (~1/λ(L)(2)) determines the effective Fermi temperature, T(F). We report a sharp peak in the x-dependence of λ(L) at zero temperature in clean samples of BaFe(2)(As(1)(-x)P(x))(2) at the optimum composition x = 0.30, where the superconducting transition temperature T(c) reaches a maximum of 30 kelvin. This structure may arise from quantum fluctuations associated with a quantum critical point. The ratio of T(c)/T(F) at x = 0.30 is enhanced, implying a possible crossover toward the Bose-Einstein condensate limit driven by quantum criticality.
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Affiliation(s)
- K Hashimoto
- Department of Physics, Kyoto University, Kyoto, Japan
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41
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Maruyama K, Yokoyama A, Matsui T, Mizukami T, Mizukami Y, Sogawa K, Yokosuka O, Nomura F, Yokoyama T. Higher Serum Free Glycerol Levels in a Group of Alcoholics than in Controls. Alcohol Clin Exp Res 2012; 36:1820-6. [DOI: 10.1111/j.1530-0277.2012.01795.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Accepted: 02/03/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Katsuya Maruyama
- Clinical Research Unit; National Hospital Organization Kurihama Alcoholism Center; Yokosuka; Japan
| | - Akira Yokoyama
- Clinical Research Unit; National Hospital Organization Kurihama Alcoholism Center; Yokosuka; Japan
| | - Toshifumi Matsui
- Clinical Research Unit; National Hospital Organization Kurihama Alcoholism Center; Yokosuka; Japan
| | - Takeshi Mizukami
- Clinical Research Unit; National Hospital Organization Kurihama Alcoholism Center; Yokosuka; Japan
| | - Yuki Mizukami
- Clinical Research Unit; National Hospital Organization Kurihama Alcoholism Center; Yokosuka; Japan
| | - Kazuyuki Sogawa
- Clinical Proteomics Research Center; Chiba University Hospital; Chiba; Japan
| | - Osamu Yokosuka
- Department of Medicine and Clinical Oncology; Graduate School of Medicine; Chiba University; Chiba; Japan
| | | | - Tetsuji Yokoyama
- Department of Human Resources Development; National Institute of Public Health; Wako; Japan
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Hashimoto K, Kasahara S, Katsumata R, Mizukami Y, Yamashita M, Ikeda H, Terashima T, Carrington A, Matsuda Y, Shibauchi T. Nodal versus nodeless behaviors of the order parameters of LiFeP and LiFeAs superconductors from magnetic penetration-depth measurements. Phys Rev Lett 2012; 108:047003. [PMID: 22400882 DOI: 10.1103/physrevlett.108.047003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Indexed: 05/31/2023]
Abstract
High-precision measurements of magnetic penetration depth λ in clean single crystals of LiFeAs and LiFeP superconductors reveal contrasting behaviors. In LiFeAs the low-temperature λ(T) shows a flat dependence indicative of a fully gapped state, which is consistent with previous studies. In contrast, LiFeP exhibits a T-linear dependence of superfluid density infinity λ(-2), indicating a nodal superconducting order parameter. A systematic comparison of quasiparticle excitations in the 1111, 122, and 111 families of iron-pnictide superconductors implies that the nodal state is induced when the pnictogen height from the iron plane decreases below a threshold value of ~1.33 Å.
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Affiliation(s)
- K Hashimoto
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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43
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Sato R, Fujiya M, Watari J, Ueno N, Moriichi K, Kashima S, Maeda S, Ando K, Kawabata H, Sugiyama R, Nomura Y, Nata T, Itabashi K, Inaba Y, Okamoto K, Mizukami Y, Saitoh Y, Kohgo Y. The diagnostic accuracy of high-resolution endoscopy, autofluorescence imaging and narrow-band imaging for differentially diagnosing colon adenoma. Endoscopy 2011; 43:862-8. [PMID: 21732270 DOI: 10.1055/s-0030-1256510] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [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: 12/23/2022]
Abstract
BACKGROUND AND STUDY AIMS Conventional colonoscopy can result in unnecessary biopsy or endoscopic resection due to its inability to distinguish adenomas from hyperplastic polyps. This study therefore evaluated the efficacy of high-resolution endoscopy (HRE), autofluorescence imaging (AFI), and narrow-band imaging (NBI) in discriminating colon adenoma from hyperplastic polyps. PATIENTS AND METHODS This was a prospective multicenter study in patients undergoing AFI and NBI examinations. HRE, AFI, and NBI images were classified into two groups based on morphological characteristics, the predominant color intensities, and the visibility of meshed capillary vessels, respectively. Each of the endoscopic photographs were independently evaluated by a single endoscopist. The images were then assessed by three specialists and three residents, the latter having performed < 500 colonoscopies and < 30 NBI and AFI examinations. Diagnostic test statistics were calculated to compare the accuracy in differentiating colon adenoma from hyperplastic polyps for each method. RESULTS A total of 183 patients were enrolled in the study and 339 adenomas and 85 hyperplastic polyps were identified. AFI and NBI could distinguish adenoma from hyperplastic polyps with an accuracy of 84.9 % and 88.4 %, respectively, whereas HRE exhibited an accuracy of 75.9 %. In the 358 lesions in which the AFI diagnosis was consistent with that of NBI, the accuracy, sensitivity, and specificity were high, at 91.9 %, 92.7 %, and 92.9 %, respectively. During the study comparing specialists and residents, AFI and NBI dramatically improved the diagnostic accuracy of residents from 69.1 % to 86.1 % and 84.7 %, respectively. CONCLUSIONS Both AFI and NBI are considered to be feasible tools that can discriminate colon adenoma from hyperplastic polyps, and their use may be particularly beneficial for less-experienced endoscopists.
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Affiliation(s)
- R Sato
- Internal Medicine, Engaru-Kosei General Hospital, Asahikawa, Japan
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Mizukami Y, Kawamoto T, Sugiyama Y, Sasajima J, Koizumi K, Moriichi K, Fujiya M, Bardeesy N, Chung DC, Kohgo Y. Effect of transplantation of pro-angiogenic monocytes to pancreatic cancer-bearing mice on resistance to chemotherapy/radiotherapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
212 Background: Hypoxic tumors are usually resistant to conventional chemotherapy and radiotherapies, which typically target actively dividing cells. The tumor vasculatures are unorganized and lack adequate pericyte coverage, which compromises delivery of drugs to tumors. How best to normalize the aberrant tumor vasculature to maximize anticancer drug delivery comprises an area of intensive investigation. Methods: We tested out hypothesize that bone marrow (BM) cells may be able to restore appropriate vessel function in tumor vasculature using nude mice bearing pancreatic cancer xenografts and genetically engineered mice that develop pancreatic adenocarcinoma. Results: Culturing BM mononuclear cells with endothelial growth medium resulted in the early outgrowth of spindle-shaped attached monocytic cells expressing CD11b/CXCR4 with a significant vessel stabilizing activity. Intravenous administration of these cultured pro- angiogenic cells into mice bearing pancreatic cancer significantly reduced areas of hypoxia without enhancing tumor growth. The resulting vasculature structurally mimicked normal vessels with intensive pericyte coverage. Consistent with a marked reduction in gene expressions involved in drug resistance such as MDR1 and ABCG2 in monocytes-injected tumors, a combination of the transplantation and chemotherapeutic agents reduced tumor size and significantly increased areas of necrosis as compared to chemotherapy alone. Conclusions: Our findings offer an alternate approach to improve delivery and efficacy of anticancer drugs to hypoxic tumors through a remodeling of the abnormal tumor vessels. No significant financial relationships to disclose.
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Affiliation(s)
- Y. Mizukami
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - T. Kawamoto
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - Y. Sugiyama
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - J. Sasajima
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - K. Koizumi
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - K. Moriichi
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - M. Fujiya
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - N. Bardeesy
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - D. C. Chung
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
| | - Y. Kohgo
- Asahikawa Medical College, Asahikawa, Japan; Massachusetts General Hospital Cancer Center, Boston, MA; Massachusetts General Hospital, Boston, MA
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Watanabe M, Kono K, Kawaguchi Y, Mizukami Y, Mimura K, Maruyama T, Izawa S, Fujii H. NK cell dysfunction with down-regulated CD16 and up-regulated CD56 molecules in patients with esophageal squamous cell carcinoma. Dis Esophagus 2010; 23:675-81. [PMID: 20545975 DOI: 10.1111/j.1442-2050.2010.01073.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [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: 12/11/2022]
Abstract
NK cells can be divided into two subsets, CD56(dim) and CD56(bright) NK cells, based on their expression of CD56 and CD16. In the present study, we analyzed NK cell dysfunction in patients with esophageal squamous cell carcinoma (ESCC), with a particular focus on the expression of CD16 and CD56 molecules. Expression of CD16 and CD56, and the distribution of CD56(dim) or CD56(bright) NK cells gated on CD56(+)CD3(-) NK cells were compared between ESCC patients (n= 40) and healthy donors (n= 38). Purified NK cells were evaluated for Cetuximab-mediated antibody-dependent cellular cytotoxicity (ADCC) against epidermal growth factor receptor (EGFR)-expressing ESCC cell lines. Although there were no significant differences in the distribution of CD56(dim) and CD56(bright) NK cells between ESCC patients and healthy donors, down-regulated CD16 and up-regulated CD56 were significantly observed on NK cells of ESCC patients, paralleling the impairment of Cetuximab-mediated ADCC, in comparison with healthy donors. After patients received curative resections of ESCC, the down-regulated CD16 and up-regulated CD56 were significantly restored to the levels of healthy donors. Moreover, TGF-beta1 partially contributed to down-regulation of CD16 on NK cells. Down-regulated CD16 and up-regulated CD56 molecules on NK cells were observed in ESCC patients, resulting in NK cell dysfunction.
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Affiliation(s)
- M Watanabe
- First Department of Surgery, University of Yamanashi, Yamanashi, Japan
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Maruyama T, Mimura K, Sato E, Watanabe M, Mizukami Y, Kawaguchi Y, Ando T, Kinouchi H, Fujii H, Kono K. Inverse correlation of HER2 with MHC class I expression on oesophageal squamous cell carcinoma. Br J Cancer 2010; 103:552-9. [PMID: 20628381 PMCID: PMC2939777 DOI: 10.1038/sj.bjc.6605772] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND As HER2 is expressed in 30% of oesophageal squamous cell carcinomas (ESCCs), T-cell-based immunotherapy and monoclonal antibodies targeted against HER2 are attractive, novel approaches for ESCCs. However, it was shown that there is an inverse correlation between HER2 and MHC class I expression on tumours. Thus, the correlation between HER2 and MHC class I expressions on ESCC was evaluated. METHODS Expressions of MHC class I and HER2 in ESCC tissues (n=80) and cell lines were assessed by immunohistochemistry, fluorescence in situ hybridisation (FISH), and flow cytometry. We investigated whether HER2 downregulation with small interfering RNA (siRNA) in ESCC cell lines could upregulate the expression of MHC class I and the antigen presentation machinery components, and could increase their sensitivity for tumour antigen-specific CTLs. RESULTS There was an inverse correlation between HER2 and MHC class I expressions in both tumour tissues and cell lines. Downregulation of HER2 with siRNA resulted in the upregulation of MHC class I expression, leading to increased CTL recognition by tumour antigen-specific CTLs. CONCLUSION HER2-overexpressing ESCC tumour cells showed a reduced sensitivity for CTLs through the downregulation of MHC class I.
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Affiliation(s)
- T Maruyama
- First Department of Surgery, University of Yamanashi, 1110 Shimokato, Chuo-city, Yamanashi 409-3898, Japan
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47
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Hosokawa Y, Yokoyama A, Yokoyama T, Wada N, Mori S, Matsui T, Mizukami Y, Maesato H, Maruyama K. [Relationship between drinking, smoking, and dietary habits and the body mass index of Japanese alcoholic men]. Nihon Arukoru Yakubutsu Igakkai Zasshi 2010; 45:25-37. [PMID: 20387541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Malnutrition and emaciation in alcoholics is associated with various alcoholism-related diseases, including Wernicke's encephalopathy, aero-digestive tract cancer, and serious metabolic disorders. We used a self-administered questionnaire survey for structured dietary habit screening to evaluate the dietary profiles of 467 Japanese alcoholic men aged 40 years or over and their relationship to body mass index (BMI). Their average daily ethanol consumption was 119 +/- 65 g (845 +/- 463 kcal). The survey showed that 50.5% of the subjects consumed three meals a day; 32.8%, two meals; 12.2%, one meal; and 4.5% rarely ate. The meals mainly consisted of carbohydrates and protein, with few vegetables. Daily alcohol consumption was inversely correlated with the frequency of meals, drinking milk, and consuming confectionery. The subjects who lived with their family (72.8%) consumed more meals than the subjects liv- ing alone. After excluding 22 subjects with leg edema or ascites, the average BMI was 21.3 +/- 3.2. The group with the lowest BMI values (<18.5) accounted for 19.3% of the subjects, and those with the highest BMI values (> or = 25) accounted for 11.5%. A multivariate stepwise logistic analysis showed that BMI increased 0.15 per 22 g ethanol consumed daily and decreased 0.03 per + 10 cigarettes smoked daily, 0.43 per decrease by one in daily frequency of meals, and 0.54 per category (daily, occasionally, rarely, seldom) of milk consumption. The likelihood of a low BMI <18.5 was significantly and independently associated with smoking [OR (95%CI) =1.24 (1.02-1.51) per +10 cigarettes] and with intake of seafood [0.62 (0.41-0.94) per +1 category], milk [1.52 (1.16-2.00) per +1 category] and green and yellow vegetables [1.52 (1.05-2.21) per +1 category]. Intervention in regard to diet as well as drinking is important to preventing malnutrition and emaciation in alcoholics.
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Affiliation(s)
- Yuko Hosokawa
- National Hospital Organization Kurihama Alcoholism Center, Yokosuka, Kanagawa, 246-0841, Japan
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Mizukami Y, Kono K, Maruyama T, Watanabe M, Kawaguchi Y, Kamimura K, Fujii H. Downregulation of HLA Class I molecules in the tumour is associated with a poor prognosis in patients with oesophageal squamous cell carcinoma. Br J Cancer 2008; 99:1462-7. [PMID: 18841157 PMCID: PMC2579690 DOI: 10.1038/sj.bjc.6604715] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
As antigenic peptides in the context of human leukocyte antigen (HLA) class I molecules are recognised by cytotoxic T lymphocytes (CTL), the downregulation of HLA class I molecules is one of the reasons why tumour cells can evade CTL-mediated anti-tumour immunity. In this study, we investigated HLA class I expression in oesophageal squamous cell carcinoma (ESCC) (n=70) and in their metastatic lesions (lymph nodes (n=40) and liver (n=3)), by immunohistochemistry with anti-HLA class I monoclonal antibody (EMR8-5). As a result, the downregulation of HLA class I expression in primary lesions of ESCC was observed in 43%, and that in metastatic lymph nodes was noted in 90%. Furthermore, patients with preserved HLA class I expression in primary tumours showed a better survival in comparison to those with downregulated HLA class I molecules (P<0.01). Furthermore, multivariate analysis using Cox's proportional hazards model revealed that the downregulated expression of HLA class I in primary lesions was an independent, unfavourable prognostic factor (P<0.01). In conclusion, the downregulation of HLA class I expression frequently occurred in primary tumour and, to a greater extent, in metastatic lesions of patients with ESCC and was associated with patient survival.
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Affiliation(s)
- Y Mizukami
- First Department of Surgery, University of Yamanashi, 1110 Shimokato, Chuo-city, Yamanashi 409-3898, Japan
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Mizukami Y, Okazaki M, Usui S, Hosaki S, Maruyama K, Hosokawa Y. [Analysis of lipoprotein metabolism in alcoholics]. Nihon Arukoru Yakubutsu Igakkai Zasshi 2008; 43:110-119. [PMID: 18516950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
High density lipoprotein (HDL) is increased by exercise and drinking and is well known as a negative risk factor of coronary heart disease. We analyzed serum lipids of alcoholics from the view points of biochemical examination, remnant like particle (RLP) and particle size of lipoprotein for the purpose of estimated effect of serum lipids, especially HDL quality in alcoholics. Serum levels of total cholesterol, free glycerol, RLP-C and RLP-TG were significantly decreased after hospitalization. The condition of RLP-C/RLP-TG on admission revealed cholesterol-rich composition. In case of HDL-C, the longer period from last drinking to hospitalization affected its decrease. From analytical study of particle size of lipoprotein, quantities of HDL-C in very large size and large size were significantly decreased after hospitalization which means that HDL composition at hospitalization is cholesterol-rich. So, it is speculated that increased serum level of HDL in alcoholics may be caused by expanded cholesterol ester and its quality may be different from that of healthy people. In this meaning, the study of arteriosclerosis in alcoholics will be necessary in relation to high level of serum HDL-C.
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Affiliation(s)
- Yuki Mizukami
- Jissen Women's University, Graduate School of Human Life Sciences, 4-1-1 Osakaue, Hino, Tokyo 191-8510, Japan
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Tanno S, Nakano Y, Nishikawa T, Nakamura K, Sasajima J, Minoguchi M, Mizukami Y, Yanagawa N, Fujii T, Obara T, Okumura T, Kohgo Y. Natural history of branch duct intraductal papillary-mucinous neoplasms of the pancreas without mural nodules: long-term follow-up results. Gut 2008; 57:339-43. [PMID: 17660227 DOI: 10.1136/gut.2007.129684] [Citation(s) in RCA: 194] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Although branch duct intraductal papillary-mucinous neoplasms (IPMNs) of the pancreas without mural nodules are frequently observed in asymptomatic subjects, the natural history of these lesions has never been studied. The aim of this study was to elucidate the natural history of branch duct IPMNs without mural nodules. METHODS Eighty-two patients who had no apparent mural nodules on initial examination were selected for follow-up. All subjects underwent examinations by imaging modalities including endoscopic retrograde pancreatography, and were followed-up by regular examinations once or twice a year. Serial changes of the maximum cystic diameter and the appearance of mural nodules were studied during the observation periods ranging from 14 to 148 months (median, 61 months). RESULTS Nine (11.0%) of 82 patients exhibited obvious progression of cystic dilatation (median, 59 months). Of these nine patients with cystic enlargement, six continued with regular follow-up examinations. Three cases underwent surgical resection, and were pathologically diagnosed as adenoma in two and borderline in one. Four patients (4.9%) showed newly developed mural nodules in dilated branch ducts (median, 105 months). Histological analysis revealed three cases classified as adenoma and one as carcinoma in situ. None of the remaining 69 patients (84.1%) showed any changes in dilated branch ducts (median, 57 months). CONCLUSIONS Most branch duct IPMNs without mural nodules remained unchanged during long-term follow-up. Although follow-up with careful examination is required to detect newly developed mural nodules in dilated branch ducts, branch duct IPMNs without mural nodules can be followed-up without surgery.
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Affiliation(s)
- S Tanno
- Department of General Medicine, Asahikawa Medical College, 2-1-1-1 East Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
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