1
|
Agetsuma M, Sato I, Tanaka YR, Carrillo-Reid L, Kasai A, Noritake A, Arai Y, Yoshitomo M, Inagaki T, Yukawa H, Hashimoto H, Nabekura J, Nagai T. Activity-dependent organization of prefrontal hub-networks for associative learning and signal transformation. Nat Commun 2023; 14:5996. [PMID: 37803014 PMCID: PMC10558457 DOI: 10.1038/s41467-023-41547-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 09/08/2023] [Indexed: 10/08/2023] Open
Abstract
Associative learning is crucial for adapting to environmental changes. Interactions among neuronal populations involving the dorso-medial prefrontal cortex (dmPFC) are proposed to regulate associative learning, but how these neuronal populations store and process information about the association remains unclear. Here we developed a pipeline for longitudinal two-photon imaging and computational dissection of neural population activities in male mouse dmPFC during fear-conditioning procedures, enabling us to detect learning-dependent changes in the dmPFC network topology. Using regularized regression methods and graphical modeling, we found that fear conditioning drove dmPFC reorganization to generate a neuronal ensemble encoding conditioned responses (CR) characterized by enhanced internal coactivity, functional connectivity, and association with conditioned stimuli (CS). Importantly, neurons strongly responding to unconditioned stimuli during conditioning subsequently became hubs of this novel associative network for the CS-to-CR transformation. Altogether, we demonstrate learning-dependent dynamic modulation of population coding structured on the activity-dependent formation of the hub network within the dmPFC.
Collapse
Grants
- MEXT | Japan Society for the Promotion of Science (JSPS)
- This study was supported by the Japan Science and Technology Agency, PRESTO (to M.A.), JSPS KAKENHI Grant (grant number JP18K06536, JP18H05144, JP20H05076, JP21H02801, JP22H05081, JP22H05519 to M.A.; JP20H03357, JP20H05073, JP21K18563 to Y.R.T.; JP20H05065, JP22H05080 to A.K.; JP22H05081 to A.N.), JSPS Bilateral Program (JPJSBP1-20199901 to M.A.), AMED (grant number JP19dm0207086 to M.A.; JP21dm0207117 to H.H.), the grant of Joint Research by the National Institutes of Natural Sciences (NINS program No 01112008 and 01112106 to M.A.), and grants from Brain Science Foundation and Shimadzu Foundation to M.A. and the Takeda Science Foundation to A.K. and H.H. Authors declare that they have no competing interests.
Collapse
Affiliation(s)
- Masakazu Agetsuma
- Division of Homeostatic Development, National Institute for Physiological Sciences, 38 Nishigohnaka Myodaiji-cho, Okazaki, Aichi, 444-8585, Japan.
- Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan.
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan.
- Division of Molecular Design, Research Center for Systems Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
- Quantum Regenerative and Biomedical Engineering Team, Institute for Quantum Life Science, National Institutes for Quantum Science and Technology (QST), Anagawa 4-9-1, Chiba Inage-ku, Chiba, 263-8555, Japan.
| | - Issei Sato
- Department of Computer Science, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yasuhiro R Tanaka
- Brain Science Institute, Tamagawa University, 6-1-1 Tamagawagakuen, Machida, Tokyo, 194-8610, Japan
| | - Luis Carrillo-Reid
- Instituto de Neurobiologia, National Autonomous University of Mexico, Boulevard Juriquilla 3001, Juriquilla, Queretaro, CP, 76230, Mexico
| | - Atsushi Kasai
- Graduate School of Pharmaceutical Sciences, Osaka University, Yamadaoka 1-6, Suita, Osaka, 565-0871, Japan
| | - Atsushi Noritake
- Division of Behavioral Development, National Institute for Physiological Sciences, 38 Nishigohnaka Myodaiji-cho, Okazaki, Aichi, 444-8585, Japan
| | - Yoshiyuki Arai
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Miki Yoshitomo
- Division of Homeostatic Development, National Institute for Physiological Sciences, 38 Nishigohnaka Myodaiji-cho, Okazaki, Aichi, 444-8585, Japan
| | - Takashi Inagaki
- Division of Homeostatic Development, National Institute for Physiological Sciences, 38 Nishigohnaka Myodaiji-cho, Okazaki, Aichi, 444-8585, Japan
| | - Hiroshi Yukawa
- Quantum Regenerative and Biomedical Engineering Team, Institute for Quantum Life Science, National Institutes for Quantum Science and Technology (QST), Anagawa 4-9-1, Chiba Inage-ku, Chiba, 263-8555, Japan
- Institute of Nano-Life-Systems, Institutes of Innovation for Future Society Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Hitoshi Hashimoto
- Graduate School of Pharmaceutical Sciences, Osaka University, Yamadaoka 1-6, Suita, Osaka, 565-0871, Japan
- United Graduate School of Child Development, Osaka University, Kanazawa University, Hamamatsu University School of Medicine, Chiba University, and University of Fukui, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Division of Bioscience, Institute for Datability Science, Osaka University, 1-8 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Junichi Nabekura
- Division of Homeostatic Development, National Institute for Physiological Sciences, 38 Nishigohnaka Myodaiji-cho, Okazaki, Aichi, 444-8585, Japan
| | - Takeharu Nagai
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| |
Collapse
|
2
|
Inagaki T, Akiyama Y, Okamoto S, Mayumi T, Yamada Y. Relationship between gait stability indices and gait parameters comprising joint angles based on walking data from 288 people. Nagoya J Med Sci 2023; 85:211-222. [PMID: 37346831 PMCID: PMC10281842 DOI: 10.18999/nagjms.85.2.211] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 04/12/2022] [Indexed: 06/23/2023]
Abstract
Stability during walking is essential because falling accidents may lead to severe injuries. In this study, we calculated the margin of stability (MoS) and the maximum Lyapunov exponent (λs), which are two major stability indices for walking, using a gait database representing 300 healthy people. Previously, the relationships between these indices and other gait parameters, including joint angles, have not been investigated in such a large subject pool. Therefore, we determined the relationships between these stability indices and the gait parameters by calculating correlation coefficients and performing multiple regression analysis. The results indicated that MoS is dominated by walking speed in the forward direction and associated with various joint angles in the lateral direction. Conversely, no relationships were identified between λs and the gait parameters. Although both MoS and λs are considered as measures of gait stability, they are independent. The results of this study suggest that MoS and λs represent different aspects of gait motion.
Collapse
Affiliation(s)
- Takashi Inagaki
- Department of Mechanical and Aerospace Engineering, Nagoya University Graduate School of Engineering, Nagoya, Japan
| | - Yasuhiro Akiyama
- Department of Mechanical Systems Engineering, Nagoya University Graduate School of Engineering, Nagoya, Japan
| | - Shogo Okamoto
- Department of Computer Sciences, Graduate School of Systems Design, Tokyo Metropolitan University, Hino, Japan
| | - Takuya Mayumi
- Department of Mechanical Systems Engineering, Nagoya University Graduate School of Engineering, Nagoya, Japan
| | - Yoji Yamada
- Department of Mechanical Systems Engineering, Nagoya University Graduate School of Engineering, Nagoya, Japan
| |
Collapse
|
3
|
Inagaki T, Kim J, Tomida K, Maeda E, Matsumoto T. 3D quantitative assessment for nuclear morphology in osteocytic spheroid with optical clearing technique. Integr Biol (Camb) 2023; 15:zyad007. [PMID: 37314268 DOI: 10.1093/intbio/zyad007] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/07/2023] [Accepted: 05/23/2023] [Indexed: 06/15/2023]
Abstract
In recent years, three-dimensional (3D) cell culture has been attracting attention as a cell culture model that mimics an environment closer to that of a living organism. It is known that there is a close relationship between cell nuclear shape and cellular function, which highlights the importance of cell nucleus shape analysis in the 3D culture. On the other hand, it is difficult to observe the cell nuclei inside the 3D culture models because the penetration depth of the laser light under a microscope is limited. In this study, we adopted an aqueous iodixanol solution to the 3D osteocytic spheroids derived from mouse osteoblast precursor cells to make the spheroids transparent for 3D quantitative analysis. With a custom-made image analysis pipeline in Python, we found that the aspect ratio of the cell nuclei near the surface of the spheroid was significantly greater than that at the center, suggesting that the nuclei on the surface were deformed more than those at the center. The results also quantitatively showed that the orientation of nuclei in the center of the spheroid was randomly distributed, whereas those on the surface of the spheroid were oriented parallel to the surface of the spheroid. Our 3D quantitative method with an optical clearing technique will contribute to the 3D culture models including various organoid models to elucidate the nuclear deformation during the development of the organs. Insight box Although 3D cell culture has been a powerful tool in the fields of fundamental biology and tissue engineering, it raises the demand for quantification techniques for cell nuclear morphology in the 3D culture model. In this study, we attempted to optically clear a 3D osteocytic spheroid model using iodixanol solution for the nuclear observation inside the spheroid. Moreover, using a custom-made image analysis pipeline in Python, we successfully quantified the nuclear morphology regarding aspect ratio and orientation. Our quantitative method with the optical clearing technique will contribute to the 3D culture models such as various organoid models to elucidate the nuclear deformation during the development of the organs.
Collapse
Affiliation(s)
| | | | - Kosei Tomida
- Department of Mechanical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Eijiro Maeda
- Department of Mechanical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Takeo Matsumoto
- Department of Mechanical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| |
Collapse
|
4
|
Lin C, Ahn JK, Choi JM, Farrington MS, Gonzalez M, Grethen N, Hsiung YB, Inagaki T, Kamiji I, Kim EJ, Kim JL, Kim HM, Kawata K, Kitagawa A, Komatsubara TK, Kotera K, Lee SK, Lee JW, Lim GY, Luo Y, Matsumura T, Nakagiri K, Nanjo H, Nomura T, Ono K, Redeker JC, Sato T, Sasse V, Shibata T, Shimizu N, Shinkawa T, Shinohara S, Shiomi K, Shiraishi R, Suzuki S, Tajima Y, Tung YC, Wah YW, Watanabe H, Wu T, Yamanaka T, Yoshida HY. Search for the Pair Production of Dark Particles X with K_{L}^{0}→XX, X→γγ. Phys Rev Lett 2023; 130:111801. [PMID: 37001070 DOI: 10.1103/physrevlett.130.111801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 02/08/2023] [Indexed: 06/19/2023]
Abstract
We present the first search for the pair production of dark particles X via K_{L}^{0}→XX with X decaying into two photons using the data collected by the KOTO experiment. No signal was observed in the mass range of 40-110 MeV/c^{2} and 210-240 MeV/c^{2}. This sets upper limits on the branching fractions as B(K_{L}^{0}→XX)<(1-4)×10^{-7} and B(K_{L}^{0}→XX)<(1-2)×10^{-6} at the 90% confidence level for the two mass regions, respectively.
Collapse
Affiliation(s)
- C Lin
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - J M Choi
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - M S Farrington
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - M Gonzalez
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Grethen
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - T Inagaki
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - I Kamiji
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - E J Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J L Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - H M Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - K Kawata
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - A Kitagawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T K Komatsubara
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Kotera
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S K Lee
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J W Lee
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - G Y Lim
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - Y Luo
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Matsumura
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - K Nakagiri
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nanjo
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Nomura
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Ono
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - J C Redeker
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - V Sasse
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Shibata
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Shimizu
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Shinkawa
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - S Shinohara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Shiomi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - R Shiraishi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Suzuki
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - Y Tajima
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - Y-C Tung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - Y W Wah
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - H Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - T Wu
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - T Yamanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Y Yoshida
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| |
Collapse
|
5
|
Furukawa M, Ueno M, Sakai D, Ouchi K, Hamamoto Y, Aikata H, Ozaka M, Tsumura H, Tsuji K, Kubo S, Nishina T, Katanuma A, Morizane C, Ikeda M, Mizuno N, Inagaki T, Shioji K, Furuse J. A multicenter, single-arm, phase II study of nivolumab in patients with biliary tract cancer with a PD-L1 combined positive score ≥ 1. J Clin Oncol 2023. [DOI: 10.1200/jco.2023.41.4_suppl.533] [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: 01/25/2023] Open
Abstract
533 Background: Patients with advanced biliary tract cancer (BTC) have a poor prognosis, and high unmet medical needs still exist for the treatment of this disease. Nivolumab has shown its effectiveness against multiple cancer types, especially those with PD-L1 expression. This study assessed the efficacy and safety of nivolumab in BTC patients with a combined positive score (CPS) ≥ 1 who were refractory or intolerant to the standard of care (SOC): gemcitabine, cisplatin and tegafur/gimeracil/oteracil (S-1). Methods: This was a single-arm, multicenter, open-label, prospective phase II study. Key eligibility criteria were as follows: having unresectable or recurrent BTC (intrahepatic bile duct cancer, extrahepatic bile duct cancer, gallbladder cancer, or ampullary cancer); being refractory or intolerant to SOC; having adequate hepatic, renal and hematological function; and having a CPS ≥ 1 in central assessment. Patients received nivolumab (480 mg, every 4 weeks) until disease progression, clinical deterioration, or unacceptable toxicity. The primary endpoint was objective response rate (ORR) assessed by the central review according to RECIST 1.1. The secondary endpoints included overall survival (OS), progression-free survival (PFS), and safety. Results: A total of 84 patients were enrolled between Mar 11, 2020 and Mar 15, 2021, of them 12 received one regimen and 72 received two or more regimens. The median follow-up period was 6.90 months. ORR per central assessment was 10.7% (CR: 3.6%, PR: 7.1%), and ORR per investigator assessment was 15.5% (CR: 2.4%, PR: 13.1%). The median PFS per central and investigator assessment was 1.02 (95% CI 0.95–1.77) months and 2.48 (95% CI 1.87–2.83) months, respectively. The median OS was 6.90 (95% CI 5.26–9.20) months. The median duration of response per central and investigator assessment was not reached (range 2.8–13.0+) and 10.15 (range 2.0–12.8+) months, respectively. The 1-year survival rate was 25.3% (95% CI 15.4–36.4). The most frequent treatment-related adverse events were pyrexia (19.0%), pruritus (16.7%), and decreased appetite (13.1%). Conclusions: Nivolumab may have some activity with a durable response and a manageable safety profile in heavily treated BTC patients with CPS ≥ 1. Clinical trial information: JapicCTI-205097 .
Collapse
Affiliation(s)
| | | | | | - Kota Ouchi
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Japan
| | - Yasuo Hamamoto
- Division of outpatient chemotherapy, Cancer center, Keio University School of Medicine, Tokyo, Japan
| | | | - Masato Ozaka
- Department of Gastroenterology, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Tokyo, Japan
| | | | - Kunihiro Tsuji
- Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Kanazawa, Japan
| | - Shoji Kubo
- Osaka Metropolitan University, Osaka, Japan
| | - Tomohiro Nishina
- National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan
| | - Akio Katanuma
- Center for Gastroenterology, Teine Keijinkai Hospital, Sapporo, Japan
| | | | | | - Nobumasa Mizuno
- Department of Gastroenterology, Aichi Cancer Center Hospital, Nagoya, Japan
| | | | | | - Junji Furuse
- Department of Gastroenterology, Kanagawa Cancer Center, Yokohama, Japan
| |
Collapse
|
6
|
Nishikawa K, Hironaka S, Inagaki T, Komori A, Otsu S, Mitsugi K, Makiyama A, Watanabe K, Tamura S, Okumura Y, Kusaba H, Esaki T, Baba E, Shirao K. A multicentre retrospective study comparing site-specific treatment with empiric treatment for unfavourable subset of cancer of unknown primary site. Jpn J Clin Oncol 2022; 52:1416-1422. [PMID: 36047806 DOI: 10.1093/jjco/hyac143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/15/2022] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Patients with cancer of unknown primary site are divided into two distinct groups, favourable and unfavourable subsets. For the unfavourable subset, empiric treatment or site-specific treatment is recommended, but limited knowledge exists about the efficacy of site-specific treatment compared with empiric treatment in clinical practice. METHODS In this multicentre retrospective study, we reviewed the medical records of patients with cancer of unknown primary site treated with chemotherapy (or chemoradiotherapy) as first-line treatment from eight institutions during 2006-18. We investigated the workup modality and categorized the patients into favourable and unfavourable subsets, which were further divided into site-specific and empiric treatment groups. Site-specific treatment is defined as a standard chemotherapy for an estimated primary site. We examined the efficacy in the favourable and unfavourable subsets and performed multivariable analysis for estimating the overall survival in the unfavourable subset. RESULTS Of 177 patients with cancer of unknown primary site, 33 and 144 were categorized into favourable and unfavourable subsets, respectively. In the unfavourable subset, 84 patients (58.3%) received empiric therapy, and 60 patients (41.7%) received site-specific treatment. Median overall survival was 10.0 and 10.1 months in site-specific and empiric treatment groups, respectively, with no significant difference (hazard ratio 1.01, 95% confidence interval 0.70-1.45, P = 0.95). Multivariable analysis revealed performance status, number of metastatic sites and hypoalbuminaemia as independent prognostic factors for overall survival in the unfavourable subset. CONCLUSIONS Overall survival in site-specific and empiric treatment groups was similar in the unfavourable cancer of unknown primary site subset in this study. Further research is needed to prolong overall survival in patients in the unfavourable cancer of unknown primary site subset.
Collapse
Affiliation(s)
- Kazuo Nishikawa
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Yufu, Japan
| | - Shuichi Hironaka
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Yufu, Japan
| | - Takashi Inagaki
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Yufu, Japan
| | - Azusa Komori
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Yufu, Japan
| | - Satoshi Otsu
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Yufu, Japan
| | - Kenji Mitsugi
- Department of Medical Oncology, Hamanomachi Hospital, Fukuoka, Japan
| | - Akitaka Makiyama
- Department of Hematology/Oncology, Japan Community Healthcare Organization Kyushu Hospital, Kitakyushu, Japan
| | - Koichiro Watanabe
- Department of Medical Oncology, Oitaken Koseiren Tsurumi Hospital, Beppu, Japan
| | - Shingo Tamura
- Department of Medical Oncology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Yuta Okumura
- Department of Internal medicine, Kyushu University Beppu Hospital, Beppu, Japan
| | - Hitoshi Kusaba
- Department of Hematology, Oncology & Cardiovascular medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Taito Esaki
- Department of Gastrointestinal and Medical Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Eishi Baba
- Department of Oncology and Social Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kuniaki Shirao
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Yufu, Japan
| |
Collapse
|
7
|
Kim J, Inagaki T, Sunaga J, Adachi T, Matsumoto T. Effect of chemically induced osteogenesis supplements on multicellular behavior of osteocytic spheroids. Biochem Biophys Res Commun 2022; 622:79-85. [PMID: 35870328 DOI: 10.1016/j.bbrc.2022.07.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 11/30/2022]
Abstract
Understanding in multicellular behaviors in three-dimensional (3D) culture models such as organoids is important to help us better comprehend the mechanisms of the morphogenesis and functions of diverse organs in vivo cellular environment. In this study, we elucidated the multicellular behaviors of the osteocytic spheroids in response to the chemically induced osteogenesis supplements (OS). Particularly, we conducted 1) size change measurement, 2) fusion experiment, and 3) collagen embedding experiment of spheroids, in response to the OS. We found out that the OS alters the multicellular behaviors of the spheroid by greater reduction in the size change measurement and slowing down the speed of fusion experiment and collagen embedding experiment of the spheroids. We also highlighted that the driving force of these changes was the tight actin filaments generated on the surface of the spheroids. Hence, the results altogether indicate that the spheroid model exerted the different multicellular behaviors against the differentiation capability. This study will contribute to understanding the multicellular behaviors of the 3D culture model reconstructed by the cells with greater cell-cell interaction force.
Collapse
Affiliation(s)
- Jeonghyun Kim
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya, 464-8603, Japan.
| | - Takashi Inagaki
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Junko Sunaga
- Institute for Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Taiji Adachi
- Institute for Life and Medical Sciences, Kyoto University, Kyoto, 606-8507, Japan
| | - Takeo Matsumoto
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya, 464-8603, Japan
| |
Collapse
|
8
|
Liang J, Dong H, Wang H, Yi Z, Jiang G, Inagaki T, Gomez-Sanchez CE, Dong J, Ueda H. Creation of a quick and sensitive fluorescent immunosensor for detecting the mineralocorticoid steroid hormone aldosterone. J Steroid Biochem Mol Biol 2022; 221:106118. [PMID: 35487440 DOI: 10.1016/j.jsbmb.2022.106118] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 11/15/2022]
Abstract
Aldosterone (ALD) is a steroid hormone secreted by the zona glomerulosa of the adrenal cortex that mainly acts on the kidney to regulate sodium ion and water reabsorption. Detection of ALD plays an important role in the diagnosis of primary aldosteronism in patients with hypertension. For the first time, the gene encoding the anti-ALD antibody, A2E11, was successfully cloned and analyzed using phage display technology. The antibody had an affinity of 2.5 nM against ALD, and after binding to ALD, it reached saturation within 5 s. Using this antibody, a Quenchbody (Q-body) was constructed by labeling the N-termini of heavy and light chains of the antigen-binding fragment of A2E11 with the fluorescent dye ATTO520 to detect ALD based on the principle of photoinduced electron transfer. The sensor detected ALD in 2 min, and the limit of detection was 24.1 pg/mL with a wide detection range from 24.1 pg/mL to 10 µg/mL and a half-maximal effective concentration of 42.3 ng/mL. At the highest concentration of ALD in the assay, the fluorescence intensity increased by 5.0-fold compared to the original fluorescence intensity of the Q-body solution. The Q-body could be applied to analyze 50% of human serum without a significant influence of the matrix. The recoveries of ALD in spiked serum samples with the Q-body assay were confirmed to range from 90.3% to 98.2%, suggesting their potential applications in the diagnosis of diseases, such as essential hypertension.
Collapse
Affiliation(s)
- Jingru Liang
- Key Laboratory for Biological Medicine in Shandong Universities, Weifang Key Laboratory for Antibodies Medicine, School of Life Science and Technology, Weifang Medical University, Weifang 261053, China
| | - Hang Dong
- School of Clinical Medicine, Peking University, Beijing 100191, China
| | - Hongsheng Wang
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Zhengjun Yi
- School of Laboratory Medicine, Weifang Medical University, Weifang 261053, China
| | - Guosheng Jiang
- Key Laboratory for Biological Medicine in Shandong Universities, Weifang Key Laboratory for Antibodies Medicine, School of Life Science and Technology, Weifang Medical University, Weifang 261053, China
| | - Takashi Inagaki
- R&D Section, Product Planning Department, Cosmic Corporation Co., Ltd., Tokyo 112-0002, Japan; TKResearch Co., Ltd., Kashiwa 277-0042, Japan
| | - Celso E Gomez-Sanchez
- G.V. (Sonny) Montgomery VA Medical Center and Department of Pharmacology and Toxicology, and Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| | - Jinhua Dong
- Key Laboratory for Biological Medicine in Shandong Universities, Weifang Key Laboratory for Antibodies Medicine, School of Life Science and Technology, Weifang Medical University, Weifang 261053, China; World Research Hub Initiative, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan; Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan.
| | - Hiroshi Ueda
- World Research Hub Initiative, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan; Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan.
| |
Collapse
|
9
|
Hara H, Masuishi T, Ando T, Kawakami T, Yamamoto Y, Sugimoto N, Shiraishi K, Esaki T, Negoro Y, Tsuzuki T, Sawai H, Nakamura M, Inagaki T, Shinohara Y, Kawakami H, Kawakami K, Katsuya H, Maeda O, Fujita Y, Yoshimura K, Nakajima T, Muro K. P-99 A multicenter phase II study of mFOLFOX6 in advanced gastric cancer patients with severe peritoneal metastases: WJOG10517G. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.189] [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: 11/01/2022] Open
|
10
|
Fukami K, Inagaki T, Iwashita T, Nakanishi H, Nishimori N, Takano S, Takemura Y, Taniuchi T, Watanabe T, Yamaguchi H, Tanaka H. Iron lamination and interlaminar insulation for high-frequency pulsed magnets. Rev Sci Instrum 2022; 93:023301. [PMID: 35232164 DOI: 10.1063/5.0074226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
In high-frequency pulsed magnets, such as kickers in particle accelerators, it is essential to reduce eddy currents that could be induced in the magnet core during excitation not to distort and attenuate the magnetic field pulse. A novel iron lamination scheme with additional interlaminar insulation is proposed for the magnet core of such pulsed magnets. A laminated steel sheet core is formed by alternately stacking thin steel and insulation sheets. For application to matched kicker magnets for accelerators, test magnets with the new and conventional iron lamination were designed, assembled, and extensively evaluated. The pulsed magnetic field waveforms of two test magnets with the new lamination successfully matched to below 0.1% over the entire pulse duration, which was significantly better than those with the conventional lamination. Among the applications of the developed high-frequency pulsed magnets, beam injection kickers for the coming next generation light sources and future colliders, where suppression of the transient stored-beam oscillation during beam injection is crucial, are considered to be promising.
Collapse
Affiliation(s)
- K Fukami
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - T Inagaki
- RIKEN SPring-8 Center, Hyogo 679-5148, Japan
| | - T Iwashita
- National Institutes for Quantum and Radiological Science and Technology, Hyogo 679-5148, Japan
| | - H Nakanishi
- SPring-8 Service Co., Ltd., Hyogo 679-5165, Japan
| | - N Nishimori
- National Institutes for Quantum and Radiological Science and Technology, Hyogo 679-5148, Japan
| | - S Takano
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - Y Takemura
- SPring-8 Service Co., Ltd., Hyogo 679-5165, Japan
| | - T Taniuchi
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - T Watanabe
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - H Yamaguchi
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - H Tanaka
- RIKEN SPring-8 Center, Hyogo 679-5148, Japan
| |
Collapse
|
11
|
Kimata H, Inagaki T, Mochida T. Anion-Ordering Phase Transitions in Biferrocenium and Ferrocenium Salts with the Bis(trifluoromethanesulfonyl)amide Anion. ACS Omega 2021; 6:21139-21146. [PMID: 34423221 PMCID: PMC8375087 DOI: 10.1021/acsomega.1c03059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 07/22/2021] [Indexed: 06/13/2023]
Abstract
The bis(trifluoromethanesulfonyl)amide anion (Tf2N), which is a common component of ionic liquids, often exhibits disorder in the solid state. In this study, the phase transitions and crystal structures of the Tf2N salts of 1,1‴-dineopentyl-1',1″-biferrocene (=npBifc), 1',1″-biferrocene (=Bifc), ferrocene, and cobaltocene (1-4, respectively) were compared. All the salts exhibited phase transitions at low temperatures, which are accompanied by anion ordering, though the ordering was not complete in 2 and 3. X-ray crystallographic investigation revealed that the cations and anions in 1 and 2 adopted alternating arrangements and segregated columnar arrangements, respectively. The cation in 1 exhibited a symmetrical, average-valence structure in the room-temperature phase owing to rapid valence tautomerization, whereas the cation exhibited an unsymmetrical structure in the low-temperature phase. The cation in 2 exhibited an unsymmetrical, trapped-valence structure in both phases. The cation valence states in these salts were accounted for by the electrostatic interactions between the cations and anions. The crystal structures and phase behavior of the ferrocenium salt 3 were very different from those of 4.
Collapse
Affiliation(s)
- Hironori Kimata
- Department
of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan
| | - Takashi Inagaki
- Department
of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan
| | - Tomoyuki Mochida
- Department
of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan
- Research
Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo 657-8501, Japan
| |
Collapse
|
12
|
Inagaki T, Komori A, Nishikawa K, Ootsu S, Hironaka S. P42-4 Four cases of MSI-High solid tumors treated with pembrolizumab: Single institution experience. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
13
|
Ahn JK, Beckford B, Campbell M, Chen SH, Comfort J, Dona K, Farrington MS, Hanai K, Hara N, Haraguchi H, Hsiung YB, Hutcheson M, Inagaki T, Isoe M, Kamiji I, Kato T, Kim EJ, Kim JL, Kim HM, Komatsubara TK, Kotera K, Lee SK, Lee JW, Lim GY, Lin QS, Lin C, Luo Y, Mari T, Masuda T, Matsumura T, Mcfarland D, McNeal N, Miyazaki K, Murayama R, Nakagiri K, Nanjo H, Nishimiya H, Noichi Y, Nomura T, Nunes T, Ohsugi M, Okuno H, Redeker JC, Sanchez J, Sasaki M, Sasao N, Sato T, Sato K, Sato Y, Shimizu N, Shimogawa T, Shinkawa T, Shinohara S, Shiomi K, Shiraishi R, Su S, Sugiyama Y, Suzuki S, Tajima Y, Taylor M, Tecchio M, Togawa M, Toyoda T, Tung YC, Vuong QH, Wah YW, Watanabe H, Yamanaka T, Yoshida HY, Zaidenberg L. Study of the K_{L}→π^{0}νν[over ¯] Decay at the J-PARC KOTO Experiment. Phys Rev Lett 2021; 126:121801. [PMID: 33834796 DOI: 10.1103/physrevlett.126.121801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
The rare decay K_{L}→π^{0}νν[over ¯] was studied with the dataset taken at the J-PARC KOTO experiment in 2016, 2017, and 2018. With a single event sensitivity of (7.20±0.05_{stat}±0.66_{syst})×10^{-10}, three candidate events were observed in the signal region. After unveiling them, contaminations from K^{±} and scattered K_{L} decays were studied, and the total number of background events was estimated to be 1.22±0.26. We conclude that the number of observed events is statistically consistent with the background expectation. For this dataset, we set an upper limit of 4.9×10^{-9} on the branching fraction of K_{L}→π^{0}νν[over ¯] at the 90% confidence level.
Collapse
Affiliation(s)
- J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - B Beckford
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Campbell
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S H Chen
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - J Comfort
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - K Dona
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M S Farrington
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - K Hanai
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Hara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Haraguchi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - M Hutcheson
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - T Inagaki
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Isoe
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - I Kamiji
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Kato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - E J Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J L Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - H M Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - T K Komatsubara
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Kotera
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S K Lee
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J W Lee
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - G Y Lim
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - Q S Lin
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - C Lin
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - Y Luo
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Mari
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Masuda
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - T Matsumura
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - D Mcfarland
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - N McNeal
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Miyazaki
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - R Murayama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - K Nakagiri
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nanjo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nishimiya
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Noichi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Nomura
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - T Nunes
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Ohsugi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Okuno
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - J C Redeker
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - J Sanchez
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Sasaki
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - N Sasao
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - T Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Shimizu
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Shimogawa
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - T Shinkawa
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - S Shinohara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Shiomi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - R Shiraishi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Su
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Y Sugiyama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Suzuki
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - Y Tajima
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - M Taylor
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Tecchio
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Togawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Toyoda
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y-C Tung
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Q H Vuong
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y W Wah
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - H Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - T Yamanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Y Yoshida
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - L Zaidenberg
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| |
Collapse
|
14
|
Wake R, Miyaoka T, Kawakami K, Tsuchie K, Inagaki T, Horiguchi J, Yamamoto Y, Hayashi T, Kitagaki H. Characteristic brain hypoperfusion by 99mTc-ECD single photon emission computed tomography (SPECT) in patients with the first-episode schizophrenia. Eur Psychiatry 2020; 25:361-5. [DOI: 10.1016/j.eurpsy.2009.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 12/14/2009] [Accepted: 12/14/2009] [Indexed: 11/29/2022] Open
Abstract
AbstractObjectiveIn this study, we evaluated brain perfusion in patients with first-episode medicated schizophrenia using the new analytical method, statistical parametric mapping (SPM) applied to single photon emission computed tomography (SPECT).MethodWe performed SPECT with 99-Tc-ethyl cysteinate dimer (99mTc-ECD) of the brain and magnetic resonance imaging (MRI) in patients with schizophrenia (n = 30) and control subjects matched for age and gender (n = 37). A voxel-by-voxel group analysis was performed using SPM2 (Z > 3.0, P < 0.001, uncorrected for multiple comparisons).ResultIn comparison with control subjects, the volumes of the bilateral frontal areas were found to be decreased on MRI. Blood flow was found to be reduced in the bilateral temporal areas in the patients with schizophrenia on SPECT.ConclusionIn this study, patients with first-episode schizophrenia appeared to have significant bilateral temporal hypoperfusion, although temporal volumes were not significantly decreased in comparison with control subjects. Abnormality of temporal lobe blood flow in schizophrenia may show that functional changes occur earlier than structural changes, and may assist in the diagnosis of schizophrenia.
Collapse
|
15
|
Kufukihara K, Watanabe Y, Inagaki T, Takamatsu K, Nakane S, Nakahara J, Ando Y, Suzuki S. Cytometric cell-based assays for anti-striational antibodies in myasthenia gravis with myositis and/or myocarditis. Sci Rep 2019; 9:5284. [PMID: 30918333 PMCID: PMC6437199 DOI: 10.1038/s41598-019-41730-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [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: 07/10/2018] [Accepted: 03/17/2019] [Indexed: 12/21/2022] Open
Abstract
The purposes of the present study were to identify anti-striational antibodies in myasthenia gravis (MG) patients with myositis and/or myocarditis using a combination of cell-based assays and flow cytometry (cytometric cell-based assays) and to describe the main clinical implications. Among 2,609 stored samples collected from all over Japan between 2003 and 2016, we had serum samples from 30 MG patients with myositis and/or myocarditis. Cytometric cell-based assays with titin, ryanodine receptor, and voltage-gated Kv1.4 were performed. Autoantibodies were determined by differences in phycoerythin fluorescence between the 293F cells and titin-transfected cells. MG patients with myositis and/or myocarditis as well as late-onset and thymoma-associated MG had anti-titin, anti-ryanodine receptor, and anti-Kv1.4 antibodies. In contrast, patients with early-onset MG, those with other myopathies and healthy controls did not have anti-titin or anti-Kv1.4 antibodies with some exceptions, but they possessed anti-ryanodine receptor antibodies. Thirty MG patients with myositis and/or myocarditis showed a severe generalized form, and 21 of them had thymoma. Anti-titin and anti-Kv1.4 antibodies were found in 28 (93%) and 15 (50%) patients, respectively, and all patients had at least one of these antibodies. Cytometric cell-based assays thus demonstrated that anti-striational antibodies are biomarkers of MG with myositis and/or myocarditis.
Collapse
Affiliation(s)
- Kenji Kufukihara
- Department of Neurology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yurika Watanabe
- Department of Neurology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takashi Inagaki
- Department of Neurology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Koutaro Takamatsu
- Department of Neurology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Shunya Nakane
- Department of Neurology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.,Department of Molecular Neurology and Therapeutics, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Jin Nakahara
- Department of Neurology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yukio Ando
- Department of Neurology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Shigeaki Suzuki
- Department of Neurology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| |
Collapse
|
16
|
Ahn JK, Beckford B, Beechert J, Bryant K, Campbell M, Chen SH, Comfort J, Dona K, Hara N, Haraguchi H, Hsiung YB, Hutcheson M, Inagaki T, Kamiji I, Kawasaki N, Kim EJ, Kim JL, Kim YJ, Ko JW, Komatsubara TK, Kotera K, Kurilin AS, Lee JW, Lim GY, Lin C, Lin Q, Luo Y, Ma J, Maeda Y, Mari T, Masuda T, Matsumura T, Mcfarland D, McNeal N, Micallef J, Miyazaki K, Murayama R, Naito D, Nakagiri K, Nanjo H, Nishimiya H, Nomura T, Ohsugi M, Okuno H, Sasaki M, Sasao N, Sato K, Sato T, Sato Y, Schamis H, Seki S, Shimizu N, Shimogawa T, Shinkawa T, Shinohara S, Shiomi K, Su S, Sugiyama Y, Suzuki S, Tajima Y, Taylor M, Tecchio M, Togawa M, Tung YC, Wah YW, Watanabe H, Woo JK, Yamanaka T, Yoshida HY. Search for K_{L}→π^{0}νν[over ¯] and K_{L}→π^{0}X^{0} Decays at the J-PARC KOTO Experiment. Phys Rev Lett 2019; 122:021802. [PMID: 30720307 DOI: 10.1103/physrevlett.122.021802] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/14/2018] [Indexed: 06/09/2023]
Abstract
A search for the rare decay K_{L}→π^{0}νν[over ¯] was performed. With the data collected in 2015, corresponding to 2.2×10^{19} protons on target, a single event sensitivity of (1.30±0.01_{stat}±0.14_{syst})×10^{-9} was achieved and no candidate events were observed. We set an upper limit of 3.0×10^{-9} for the branching fraction of K_{L}→π^{0}νν[over ¯] at the 90% confidence level (C.L.), which improved the previous limit by almost an order of magnitude. An upper limit for K_{L}→π^{0}X^{0} was also set as 2.4×10^{-9} at the 90% C.L., where X^{0} is an invisible boson with a mass of 135 MeV/c^{2}.
Collapse
Affiliation(s)
- J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - B Beckford
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Beechert
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Bryant
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Campbell
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S H Chen
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - J Comfort
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - K Dona
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - N Hara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Haraguchi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - M Hutcheson
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - T Inagaki
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - I Kamiji
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Kawasaki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - E J Kim
- Division of Science Education, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - J L Kim
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - Y J Kim
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - J W Ko
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - T K Komatsubara
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Kotera
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - A S Kurilin
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Researches, Dubna, Moscow region 141980, Russia
| | - J W Lee
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - G Y Lim
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - C Lin
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - Q Lin
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y Luo
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - J Ma
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y Maeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Mari
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Masuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Matsumura
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - D Mcfarland
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - N McNeal
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Micallef
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Miyazaki
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - R Murayama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - D Naito
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Nakagiri
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nanjo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nishimiya
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Nomura
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - M Ohsugi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Okuno
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Sasaki
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - N Sasao
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - K Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Schamis
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S Seki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Shimizu
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Shimogawa
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - T Shinkawa
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - S Shinohara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Shiomi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - S Su
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Y Sugiyama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Suzuki
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - Y Tajima
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - M Taylor
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Tecchio
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Togawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y C Tung
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y W Wah
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - H Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - J K Woo
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - T Yamanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Y Yoshida
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| |
Collapse
|
17
|
Inagaki T, Hashizume A, Yasuhiro H, Shinichiro Y, Daisuke I, Masahisa K. Development of a quantitative composite functional measure for spinal and bulbar muscular atrophy (SBMA). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
18
|
Hashizume A, Katsuno M, Suzuki K, Hirakawa A, Hijikata Y, Yamada S, Inagaki T, Banno H, Sobue G. Long-term treatment with leuprorelin for spinal and bulbar muscular atrophy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
19
|
Okuda S, Takano S, Shirakawa M, Tanaka M, Inagaki T, Kajita M, Imoto M, Ikkaku T, Ueno M, Kanda F, Toda T. Executive function correlates with improvement of gait speed by rehabilitation in Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1677] [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: 12/01/2022]
|
20
|
Yamada S, Hashizume A, Hijikata Y, Inagaki T, Ito D, Nakamura T, Katsuno M. The impact of cold exposure in spinal and bulbar muscular atrophy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3058] [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]
|
21
|
Tsuchimochi H, Thambyah H, Edgley A, Inagaki T, Waddingham M, Chen Y, Du C, Zhan D, Sukumaran V, Sonobe T, Umetani K, Shirai M, Pearson J. P3478Beta-blockade prevents coronary microvascular endothelial dysfunction in non-obese salt-sensitive insulin resistant rats on a high salt diet. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
22
|
Sakurai T, Iguchi M, Nakahira M, Inagaki T, Matsui K, Koizumi N. Development of manufacturing technology for ITER TF Coil Structure. Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2015.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
23
|
Inagaki T, Smith NL, Sherva KM, Ramakrishnan S. Cross-generational effects of parental low dose BPA exposure on the Gonadotropin-Releasing Hormone3 system and larval behavior in medaka (Oryzias latipes). Neurotoxicology 2016; 57:163-173. [PMID: 27713093 DOI: 10.1016/j.neuro.2016.09.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 06/09/2016] [Revised: 09/02/2016] [Accepted: 09/29/2016] [Indexed: 11/18/2022]
Abstract
Growing evidence indicates that chronic exposure to Bisphenol A (BPA) may disrupt normal brain function and behavior mediated by gonadotropin-releasing hormone (GnRH) pathways. Previous studies have shown that low dose BPA (200ng/ml) exposure during embryogenesis altered development of extra-hypothalamic GnRH3 systems and non-reproductive locomotor behavior in medaka. Effects of parental low-dose BPA exposure on the development of GnRH3 systems and locomotor behavior of offspring are not well known. This study examines whether the neurophysiological and behavioral effects of BPA in parents (F0 generation) are carried over to their offspring (F1 generation) using stable transgenic medaka embryos/larvae with GnRH3 neurons tagged with green fluorescent protein (GFP). Parental fish were exposed to BPA (200ng/ml) for either life-long or different developmental time windows. Fertilized F1 eggs were collected and raised in egg/fish water with no environmental exposure to BPA. All experiments were performed on F1 embryos/larvae, which were grouped based on the following parental (F0) BPA exposure conditions - (i) Group 1 (G1): through life; (ii) G2: during embryogenesis and early larval development [1-14days post fertilization (dpf)]; (iii) G3: during neurogenesis (1-5dpf); and (iv) G4: during sex differentiation (5-14dpf). Embryos from unexposed vehicle treated parents served as controls (G0). G1 embryos showed significantly reduced survival rates and delayed hatching time compared to other groups, while G4 embryos hatched significantly earlier than all other groups. At 3 dpf, the GnRH3-GFP intensity was increased by 47% in G3 embryos and decreased in G4 embryos by 59% compared to controls. At 4dpf, G1 fish showed 42% increased intensity, while GFP intensity was reduced by 44% in G3 subjects. In addition, the mean brain size of G1, G3 and G4 embryos were smaller than that of control at 4dpf. At 20dpf, all larvae from BPA-treated parents showed significantly decreased total movement (distance covered) compared with controls, with G2 and G3 fish showing reduced velocity of movement. While at 20 dpf no group differences were seen in the soma diameter of GnRH3-GFP neurons, a 34% decrease in SV2 expression, a marker for synaptic transmission, in G1 larvae was observed. These data suggest that parental BPA exposure during critical windows of embryonic development or chronic treatment affects next-generation offspring both in embryonic and larval brain development as well as larval behavior.
Collapse
Affiliation(s)
- T Inagaki
- Department of Biology, University of Puget Sound, Tacoma, WA, USA; Neuroscience Program, University of Puget Sound, Tacoma, WA, USA
| | - N L Smith
- Department of Chemistry/Biochemistry, University of Puget Sound, Tacoma, WA 98416, USA
| | - K M Sherva
- Department of Chemistry/Biochemistry, University of Puget Sound, Tacoma, WA 98416, USA
| | - S Ramakrishnan
- Department of Biology, University of Puget Sound, Tacoma, WA, USA; Neuroscience Program, University of Puget Sound, Tacoma, WA, USA.
| |
Collapse
|
24
|
Diong C, Jones PP, Tsuchimochi H, Gray EA, Hughes G, Inagaki T, Bussey CT, Fujii Y, Umetani K, Shirai M, Schwenke DO. Sympathetic hyper-excitation in obesity and pulmonary hypertension: physiological relevance to the 'obesity paradox'. Int J Obes (Lond) 2016; 40:938-46. [PMID: 27001546 DOI: 10.1038/ijo.2016.33] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 01/10/2016] [Accepted: 01/28/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Within the lung, sympathetic nerve activity (SNA) has an important role in facilitating pulmonary vasodilation. As SNA is elevated in obesity, we aimed to assess the impact of sympathetic hyper-excitation on pulmonary vascular homeostasis in obesity, and its potential role in ameliorating the severity of pulmonary hypertension (PH); the well-documented 'obesity paradox' phenomenon. METHODS Zucker obese and lean rats were exposed to normoxia or chronic hypoxia (CH-10% O2) for 2 weeks. Subsequently, pulmonary SNA (pSNA) was recorded (electrophysiology), or the pulmonary microcirculation was visualized using Synchrotron microangiography. Acute hypoxic pulmonary vasoconstriction (HPV) was assessed before and after blockade of β1-adrenergic receptors (ARs) (atenolol, 3 mg kg(-1)) and β1+β2-adrenergic (propranolol, 2 mg kg(-1)). RESULTS pSNA of normoxic obese rats was higher than lean counterparts (2.4 and 0.5 μV s, respectively). SNA was enhanced following the development of PH in lean rats, but more so in obese rats (1.7 and 6.8 μV s, respectively). The magnitude of HPV was similar for all groups (for example, ~20% constriction of the 200-300 μm vessels). Although β-blockade did not modify HPV in lean rats, it significantly augmented the HPV in normoxic obese rats (β1 and β2 blockade), and more so in obese rats with PH (β2-blockade alone). Western blots showed, while the expression of pulmonary β1-ARs was similar for all rats, the expression of β2-ARs was downregulated in obesity and PH. CONCLUSIONS This study suggests that sympathetic hyper-excitation in obesity may have an important role in constraining the severity of PH and, thus, contribute in part to the 'obesity paradox' in PH.
Collapse
Affiliation(s)
- C Diong
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - P P Jones
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - H Tsuchimochi
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - E A Gray
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - G Hughes
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - T Inagaki
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - C T Bussey
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - Y Fujii
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - K Umetani
- Japan Synchrotron Radiation Research Institute, Hyogo, Japan
| | - M Shirai
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - D O Schwenke
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| |
Collapse
|
25
|
Inagaki T, Smith N, Lee EK, Ramakrishnan S. Low dose exposure to Bisphenol A alters development of gonadotropin-releasing hormone 3 neurons and larval locomotor behavior in Japanese Medaka. Neurotoxicology 2015; 52:188-97. [PMID: 26687398 DOI: 10.1016/j.neuro.2015.12.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/24/2015] [Accepted: 12/04/2015] [Indexed: 11/30/2022]
Abstract
Accumulating evidence indicates that chronic low dose exposure to Bisphenol A (BPA), an endocrine disruptor, may disrupt normal brain development and behavior mediated by the gonadotropin-releasing hormone (GnRH) pathways. While it is known that GnRH neurons in the hypothalamus regulate reproductive physiology and behavior, functional roles of extra-hypothalamic GnRH neurons remain unclear. Furthermore, little is known whether BPA interacts with extra-hypothalamic GnRH3 neural systems in vulnerable developing brains. Here we examined the impact of low dose BPA exposure on the developing GnRH3 neural system, eye and brain growth, and locomotor activity in transgenic medaka embryos and larvae with GnRH3 neurons tagged with GFP. Fertilized eggs were collected daily and embryos/larvae were chronically exposed to 200ng/ml of BPA, starting at 1 day post fertilization (dpf). BPA significantly increased fluorescence intensity of the GnRH3-GFP neural population in the terminal nerve (TN) of the forebrain at 3dpf, but decreased the intensity at 5dpf, compared with controls. BPA advanced eye pigmentation without affecting eye and brain size development, and accelerated times to hatch. Following chronic BPA exposure, 20dpf larvae showed suppression of locomotion, both in distance covered and speed of movement (47% and 43% reduction, respectively). BPA-induced hypoactivity was accompanied by decreased cell body sizes of individual TN-GnRH3 neurons (14% smaller than those of controls), but not of non-GnRH3 neurons. These novel data demonstrate complex neurobehavioral effects of BPA on the development of extra-hypothalamic GnRH3 neurons in teleost fish.
Collapse
Affiliation(s)
- T Inagaki
- Department of Biology, Neuroscience program, University of Puget Sound, Tacoma, WA 98416, USA
| | - N Smith
- Department of Chemistry, University of Puget Sound, Tacoma, WA 98416, USA
| | - E K Lee
- Department of Chemistry, University of Puget Sound, Tacoma, WA 98416, USA
| | - S Ramakrishnan
- Department of Biology, Neuroscience program, University of Puget Sound, Tacoma, WA 98416, USA.
| |
Collapse
|
26
|
Arai M, Koike T, Moriyasu M, Ito S, Ootsuka T, Inagaki T, Hattori J, Yoshino K, Kuroiwa M. Implementation of critical care staff based rapid response team. effect of rapid response system to the unpredicted death. Intensive Care Med Exp 2015. [PMCID: PMC4796971 DOI: 10.1186/2197-425x-3-s1-a67] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
27
|
Matsuo T, Miyagawa JI, Kusunoki Y, Miuchi M, Ikawa T, Akagami T, Tokuda M, Katsuno T, Kushida A, Inagaki T, Namba M. Postabsorptive hyperglucagonemia in patients with type 2 diabetes mellitus analyzed with a novel enzyme-linked immunosorbent assay. J Diabetes Investig 2015; 7:324-31. [PMID: 27330717 PMCID: PMC4847885 DOI: 10.1111/jdi.12400] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 06/29/2015] [Accepted: 07/09/2015] [Indexed: 01/11/2023] Open
Abstract
Aims/introduction The aims of the present study were to investigate the performance of a novel sandwich enzyme‐linked immunosorbent assay (ELISA) for measuring glucagon (1–29) with monoclonal antibodies against both the C‐ and N‐terminal regions of glucagon (1–29), and to analyze the differences in plasma levels and responses of glucagon (1–29) to oral glucose loading in normal glucose tolerance (NGT) subjects and patients with type 2 diabetes mellitus. Materials and Methods The cross‐reactivity against proglucagon fragments using the ELISA kit and two types of conventional radioimmunoassay (RIA) kits was evaluated. A 75‐g oral glucose tolerance test was carried out with NGT subjects and patients with type 2 diabetes mellitus, and the glucagon (1–29) concentration was measured using three types of kit. Results The ELISA kit clearly had the lowest cross‐reactivity against miniglucagon (19–29) and glicentin (1–61). The oral glucose tolerance test was carried out with 30 NGT and 17 patients with type 2 diabetes mellitus. The glucagon (1–29) levels measured by the ELISA kit after glucose loading were significantly higher at all time‐points in the type 2 diabetes mellitus group than in the NGT group. However, the glucagon (1–29) levels measured by one RIA kit were significantly higher in the NGT group, and those measured with the other RIA kit were approximately the same among the groups. Conclusions The novel sandwich ELISA accurately determines plasma glucagon (1–29) concentrations with much less cross‐reactivity against other proglucagon fragments than conventional RIA kits.
Collapse
Affiliation(s)
- Toshihiro Matsuo
- Division of Diabetes, Endocrinology and Metabolism Department of Internal Medicine Hyogo College of Medicine Nishinomiya Hyogo Japan
| | - Jun-Ichiro Miyagawa
- Division of Diabetes, Endocrinology and Metabolism Department of Internal Medicine Hyogo College of Medicine Nishinomiya Hyogo Japan
| | - Yoshiki Kusunoki
- Division of Diabetes, Endocrinology and Metabolism Department of Internal Medicine Hyogo College of Medicine Nishinomiya Hyogo Japan
| | - Masayuki Miuchi
- Division of Diabetes, Endocrinology and Metabolism Department of Internal Medicine Hyogo College of Medicine Nishinomiya Hyogo Japan
| | - Takashi Ikawa
- Division of Diabetes, Endocrinology and Metabolism Department of Internal Medicine Hyogo College of Medicine Nishinomiya Hyogo Japan
| | - Takafumi Akagami
- Division of Diabetes, Endocrinology and Metabolism Department of Internal Medicine Hyogo College of Medicine Nishinomiya Hyogo Japan
| | - Masaru Tokuda
- Division of Diabetes, Endocrinology and Metabolism Department of Internal Medicine Hyogo College of Medicine Nishinomiya Hyogo Japan
| | - Tomoyuki Katsuno
- Division of Innovative Diabetes Treatment Hyogo College of Medicine Nishinomiya Hyogo Japan
| | | | | | - Mitsuyoshi Namba
- Division of Diabetes, Endocrinology and Metabolism Department of Internal Medicine Hyogo College of Medicine Nishinomiya Hyogo Japan
| |
Collapse
|
28
|
Hirashima Y, Hanaoka T, Watanabe K, Nagashina K, Inagaki T, Nishikawa K, Hisamatsu Y, Morinaga R, Otsu S, Kumamoto T, Shirao K. A prospective study to evaluate the usefulness of the clanging tuning fork test and the nerve conduction velocity test for oxaliplatin-induced peripheral neuropathy. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.3_suppl.544] [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
544 Background: Neurotoxicity is the most frequent dose-limiting toxicity of oxaliplatin. Cumulative sensory peripheral neurotoxicity results in discontinuation of chemotherapy for cancer and impairs neurological function irreversibly. To develop new strategies to continue chemotherapy according to the treatment plan without more severe neurotoxicity, objective assessment tools for oxaliplatin-induced peripheral neuropathy (OIPN) are needed. The clanging tuning fork test (CTFT) and the nerve conduction velocity test (NCVT) are widely used forbenign neuropathies. However, little is known about their clinical usefulness for OIPN. Methods: Colorectal cancer patients were prospectively monitored at baseline and during chemotherapy with modified FOLFOX6. The incidence and severity of OIPN were recorded using NCI-CTC grading (ver. 4.0). CTFT was conducted every 2 weeks and NCVT every 8 weeks. A generalized estimating equation model was used to examine the correlations between NCI-CTC grade and CTFT/NCVT. The accuracy of the assessment was evaluated using receiver operating characteristic (ROC) curve analysis. Results: Twenty-one patients without peripheral sensory neuropathy (PSN) were enrolled. Mean CTFT values were 13.4 ± 0.7 sec at baseline, 14.1 ± 0.4 sec with grade 0 PSN, 14.0 ± 0.4 sec with grade 1 PSN, 12.5 ± 0.7 sec with grade 2 PSN, and 7.5 ± 0.9 sec with grade 3 PSN. The mean CTFT value with grade 3 PSN was significantly shorter than with the other grades (p<.001, all). ROC curve analysis showed that variation in CTFT provides a high-accuracy assessment of grade 3 PSN (AUC=0.898, 95% CI: 0.764-1.000, p=.004), and its optimal cut-off value was -3.5 sec (sensitivity and specificity for grade 3 PSN were 86% and 79%, respectively). Unlike CTFT, NCVT showed little association with OIPN. Conclusions: CTFT was found to be very effective for assessing grade 3 OIPN. The present results suggest that CTFT, a simple, quick, and non-invasive examination, is a promising assessment tool for OIPN. Clinical trial information: 000004305.
Collapse
Affiliation(s)
- Yoshinori Hirashima
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Oita, Japan
| | - Takuya Hanaoka
- Department of Neurology and Neuromuscular Disorders, Oita University Faculty of Medicine, Oita, Japan
| | - Koichiro Watanabe
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Oita, Japan
| | - Kengo Nagashina
- Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Takashi Inagaki
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Oita, Japan
| | | | - Yasushi Hisamatsu
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Oita, Japan
| | - Ryotaro Morinaga
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Oita, Japan
| | - Satoshi Otsu
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Oita, Japan
| | - Toshihide Kumamoto
- Department of Neurology and Neuromuscular Disorders, Oita University Faculty of Medicine, Oita, Japan
| | - Kuniaki Shirao
- Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Oita, Japan
| |
Collapse
|
29
|
Inagaki T, Kimura A, Hagiwara A, Sasaki R, Kobayashi K, Inaka A, Makishi G. Clinical decision rule for cervical magnetic resonance imaging in suspected cervical spinal cord injury without bony injury is useful in predicting severity of cervical stenosis. Crit Care 2015. [PMCID: PMC4470648 DOI: 10.1186/cc14395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
30
|
|
31
|
Mochida T, Funasako Y, Inagaki T, Li MJ, Asahara K, Kuwahara D. Back Cover: Crystal Structures and Phase-Transition Dynamics of Cobaltocenium Salts with Bis(perfluoroalkylsulfonyl)amide Anions: Remarkable Odd-Even Effect of the Fluorocarbon Chains in the Anion (Chem. Eur. J. 20/2013). Chemistry 2013. [DOI: 10.1002/chem.201390072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
32
|
Funasako Y, Inagaki T, Mochida T, Sakurai T, Ohta H, Furukawa K, Nakamura T. Organometallic ionic liquids from alkyloctamethylferrocenium cations: thermal properties, crystal structures, and magnetic properties. Dalton Trans 2013; 42:8317-27. [PMID: 23609048 DOI: 10.1039/c3dt00084b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Alkyloctamethylferrocenium salts with the Tf2N anion ([Fe(C5Me4C(n)H(2n+1))(C5Me4H)][Tf2N]; Tf2N = bis(trifluoromethanesulfonyl)amide) were prepared, and their ionic liquid properties, thermal properties, crystal structures, and magnetic properties were investigated. The melting points of the Tf2N salts were near room temperature, and decreased with increasing alkyl chain length up to n = 8 and then increased. The salts with PF6 and NO3 anions were also prepared. The melting points of the PF6 salts were higher than 100 °C. Most of these salts exhibited phase transitions in the solid state. The sum of the entropies of the melting and solid phase transitions was nearly independent of the alkyl chain length for salts with short alkyl chains, whereas those for salts with longer alkyl chains (n≥ 10 for Tf2N salts, n≥ 6 for PF6 salts) increased with increasing alkyl chain length. Crystal structure determinations revealed that the short chain salts form simple alternately packed structures of cations and anions in the solid state, and that the long chain salts form lamellar structures, in which the alkyl chains are aligned parallel between the layers. The effects of magnetic fields on the crystallization of the paramagnetic ionic liquids were investigated, and revealed that the Tf2N salts with n = 4 exhibited magnetic orientation when solidified under magnetic fields. The magnetic orientation was shown to be a bulk phenomenon, and the importance of the magnetic anisotropy of the crystal structure was suggested in comparison with the response of other Tf2N salts.
Collapse
Affiliation(s)
- Yusuke Funasako
- Department of Chemistry, Graduate School of Science, Kobe University, Rokkodai, Nada, Hyogo 657-8501, Japan
| | | | | | | | | | | | | |
Collapse
|
33
|
Mochida T, Funasako Y, Inagaki T, Li MJ, Asahara K, Kuwahara D. Crystal Structures and Phase-Transition Dynamics of Cobaltocenium Salts with Bis(perfluoroalkylsulfonyl)amide Anions: Remarkable Odd-Even Effect of the Fluorocarbon Chains in the Anion. Chemistry 2013; 19:6257-64. [DOI: 10.1002/chem.201300186] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Indexed: 11/09/2022]
|
34
|
Koike K, Ueda Y, Hase H, Kitae K, Fusamae Y, Masai S, Inagaki T, Saigo Y, Hirasawa S, Nakajima K, Ohshio I, Makino Y, Konishi N, Yamamoto H, Tsujikawa K. anti-tumor effect of AlkB homolog 3 knockdown in hormone- independent prostate cancer cells. Curr Cancer Drug Targets 2013; 12:847-56. [PMID: 22515525 DOI: 10.2174/156800912802429283] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 03/29/2012] [Accepted: 03/29/2012] [Indexed: 11/22/2022]
Abstract
Castrate resistant prostate cancer (CRPC) is a disease that is resistant to both hormone therapy and chemotherapy. At present, no curative therapy for CRPC has been established. Therefore, it is necessary to determine a novel molecular target for the development of therapeutic agents. We previously reported that AlkB homolog 3 (ALKBH3) is highly expressed in prostate cancer but not in benign prostatic hyperplasia or in normal prostate epithelium and that the expression levels of ALKBH3 protein are significantly correlated with the hormone-independent state of prostate cancer. Moreover, ALKBH3 regulates the invasion of prostate cancer cells via the regulation of matrix metalloproteinase 9. Here, we show that ALKBH3 gene silencing markedly induces apoptosis in hormone-independent prostate cancer cell line DU145 but not in the normal prostate epithelial cell line PNT2. Moreover, the in vivo tumorigenicity of DU145 cells was significantly inhibited by the administration of ALKBH3 siRNA. Furthermore, the anchorage-independent growth of DU145 cells was inhibited by ALKBH3 knockdown and promoted by ALKBH3 overexpression, significantly. ALKBH3 shRNA-expressing prostate cancer cells formed significantly smaller tumors than those of control shRNA transfectants in an in vivo xenograft model. These findings suggest that ALKBH3 is a promising target molecule for the development of CRPC therapeutic agents.
Collapse
Affiliation(s)
- K Koike
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Waddingham M, Edgley A, Astolfo A, Inagaki T, Tsuchimochi H, Kelly D, Yagi N, Shirai M, Pearson J. Rho Kinase Inhibition Improves Cross Bridge Cycling In Early Diabetic Heart Disease. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.05.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
36
|
Inagaki T, Yoshimi T, Kobayashi S, Kawahara M, Nagamune T. Analysis of cellular phenotype during in vitro immunization of murine splenocytes for generating antigen-specific immunoglobulin. J Biosci Bioeng 2012. [PMID: 23177212 DOI: 10.1016/j.jbiosc.2012.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Although various in vitro immunization methods to generate antigen-specific antibodies have been described, a highly effective method that can generate high-affinity immunoglobulins has not yet been reported. Herein, we analyzed a cellular phenotype during in vitro immunization of murine splenocytes for generating antigen-specific immunoglobulins. We identified a combination of T cell-dependent stimuli (IL-4, IL-5, anti-CD38 and anti-CD40 antibodies) plus lipopolysaccharides (LPS) that stimulates antigen-exposed splenocytes in vitro, followed by induction of the cells phenotypically equivalent to germinal center B cells. We also observed that LPS induced high expression levels of mRNA for activation-induced cytidine deaminase. We stimulated antigen-exposed splenocytes, followed by the accumulation of mutations in immunoglobulin genes. From the immunized splenocytes, hybridoma clones secreting antigen-specific immunoglobulins were obtained.
Collapse
Affiliation(s)
- Takashi Inagaki
- Innovative Antibody Engineering Laboratory, Advance Co. Ltd., 5-7 Kobunacho, Chuo-ku, Tokyo, Japan
| | | | | | | | | |
Collapse
|
37
|
Yorifuji T, Makino S, Takeda J, Inagaki T, Sugimura M, Takeda S. W164 A CASE OF PREGNANCY COMPLICATED BY ADENOMYOSIS RESULTING IN SEVERE FETAL GROWTH RETARDATION. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61889-x] [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]
|
38
|
Inagaki T, Yorihuji T, Makino S, Sugimura M, Takeda S. W122 EFFECTIVENESS OF HEPARIN AGAINST VASCULITIS DURING LONG TERM TOCOLYSIS. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61847-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
39
|
Abstract
Acute effects of bisphenol (BPA), an environmental chemical, on estradiol (17α or β-E2)-dependent recognition memory and dendritic spines in the medial prefrontal cortex and hippocampus were investigated in adult female rats. Ovariectomized rats received BPA 30 min before or immediately after a sample trial (viewing objects), and retention trials were performed 4 h later. Retention trials tested discrimination between old and new objects (visual memory) or locations (place memory). When given immediately after the sample trial, BPA, 1-400 μg/kg, did not alter recognition memory, but 1 and 40 μg/kg BPA, respectively, blocked 17β-E2-dependent increases in place and visual memory. When ovariectomized rats were tested with 17α-E2, 1 μg/kg BPA blocked place memory, but up to 40 μg did not block visual memory. BPA, given to cycling rats at 40 μg/kg, blocked visual, but not place, memory during proestrus when 2 h intertrial delays were given. Spine density was assessed at times of memory consolidation (30 min) and retention (4 h) after 17β-E2 or BPA + 17β-E2. In prefrontal cortex, BPA did not alter E2-dependent increases. In the hippocampus, BPA blocked E2 increases in basal spines at 4 h and was additive with E2 at 30 min. Thus, these novel data show that doses of BPA, below the current Environmental Protection Agency safe limit of 50 μg/kg, rapidly alter neural functions dependent on E2 in adult female rats.
Collapse
Affiliation(s)
- T Inagaki
- Department of Psychology, Hunter College of City University of New York, 695 Park Avenue, New York, New York 10065, USA
| | | | | |
Collapse
|
40
|
Inagaki T, Mochida T. Reactive Half-Metallocenium Ionic Liquids That Undergo Solventless Ligand Exchange. Chemistry 2012; 18:8070-5. [DOI: 10.1002/chem.201200157] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Indexed: 11/08/2022]
|
41
|
Okuda S, Kajita M, Urabe T, Inagaki T, Yamagata I, Shirakawa M, Ueda T, Kanda F, Takano S. Efficacy of Multidisciplinary Rehabilitation Combined Music Therapy with Physical Therapy and Occupational Therapy for Motor and Nonmotor Symptoms in Parkinson's Disease Patients (P06.069). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p06.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
42
|
Inagaki T, Mochida T, Takahashi M, Kanadani C, Saito T, Kuwahara D. Ionic Liquids of Cationic Sandwich Complexes. Chemistry 2012; 18:6795-804. [DOI: 10.1002/chem.201200151] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Indexed: 11/05/2022]
|
43
|
Ono K, Inagaki T, Iida T, Wakasugi-Sato N, Hosokawa R, Inenaga K. Distinct effects of cevimeline and pilocarpine on salivary mechanisms, cardiovascular response and thirst sensation in rats. Arch Oral Biol 2012; 57:421-8. [DOI: 10.1016/j.archoralbio.2011.09.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 09/13/2011] [Accepted: 09/22/2011] [Indexed: 10/15/2022]
|
44
|
Ogata R, Suzuki S, Ahn JK, Akune Y, Baranov V, Chen KF, Comfort J, Doroshenko M, Fujioka Y, Hsiung YB, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsu S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakajima Y, Nakano T, Nanjo H, Nishi N, Nix J, Nomura T, Nomachi M, Okuno H, Omata K, Perdue GN, Perov S, Podolsky S, Porokhovoy S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shimogawa T, Shinkawa T, Stepanenko Y, Sugaya Y, Sugiyama A, Sumida T, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Tung YC, Wah YW, Watanabe H, Wu ML, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Study of theKL0→π0π0νν¯decay. Int J Clin Exp Med 2011. [DOI: 10.1103/physrevd.84.052009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
45
|
Inagaki T, Kimura D, Kohyama H, Kvinikhidze A. Nonet meson properties in the Nambu–Jona-Lasinio model with dimensional versus cutoff regularization. Int J Clin Exp Med 2011. [DOI: 10.1103/physrevd.83.034005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
46
|
Chakraborty A, Inagaki T, Banno M, Mochida T, Tominaga K. Low-Frequency Spectra of Metallocenium Ionic Liquids Studied by Terahertz Time-Domain Spectroscopy. J Phys Chem A 2011; 115:1313-9. [DOI: 10.1021/jp108097q] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Anjan Chakraborty
- Molecular Photoscience Research Center, Kobe University, Kobe, 657-8501 Japan
| | - Takashi Inagaki
- Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe, 657-8501 Japan
| | - Motohiro Banno
- Molecular Photoscience Research Center, Kobe University, Kobe, 657-8501 Japan
| | - Tomoyuki Mochida
- Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe, 657-8501 Japan
| | - Keisuke Tominaga
- Molecular Photoscience Research Center, Kobe University, Kobe, 657-8501 Japan
- Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe, 657-8501 Japan
| |
Collapse
|
47
|
Inagaki T, Yagi T, Ichikawa K, Nakagawa T, Moriyama M, Uchiya KI, Nikai T, Ogawa K. Evaluation of a rapid detection method of clarithromycin resistance genes in Mycobacterium avium complex isolates. J Antimicrob Chemother 2011; 66:722-9. [DOI: 10.1093/jac/dkq536] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
48
|
Tung YC, Hsiung YB, Ahn JK, Akune Y, Baranov V, Chen KF, Comfort J, Doroshenko M, Fujioka Y, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsu S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakajima Y, Nakano T, Nanjo H, Nishi N, Nix J, Nomura T, Nomachi M, Ogata R, Okuno H, Omata K, Perdue GN, Perov S, Podolsky S, Porokhovoy S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shimogawa T, Shinkawa T, Stepanenko Y, Sugaya Y, Sugiyama A, Sumida T, Suzuki S, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Wah Y, Watanabe H, Wu ML, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Search for the decayKL0→3γ. Int J Clin Exp Med 2011. [DOI: 10.1103/physrevd.83.031101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
49
|
Funasako Y, Mochida T, Inagaki T, Sakurai T, Ohta H, Furukawa K, Nakamura T. Magnetic memory based on magnetic alignment of a paramagnetic ionic liquid near room temperature. Chem Commun (Camb) 2011; 47:4475-7. [DOI: 10.1039/c0cc05820c] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
50
|
Ido Y, Inagaki T, Yamaguchi T. Numerical simulation of microstructure formation of suspended particles in magnetorheological fluids. J Phys Condens Matter 2010; 22:324103. [PMID: 21386479 DOI: 10.1088/0953-8984/22/32/324103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Microstructure formation of magnetic particles and nonmagnetic particles in magnetorheological (MR) fluids is investigated using the particle method simulation based on simplified Stokesian dynamics. Spherical nonmagnetic particles are rearranged in the field direction due to the formation of magnetic particles in chain-like clusters. Cluster formation of spherocylindrical magnetic particles forces spherical nonmagnetic particles to arrange in the direction of the field. In contrast, the spherocylindrical nonmagnetic particles, with an aspect ratio of two or three, are not sufficiently rearranged in the field direction by cluster formation of spherical magnetic particles. Even after cluster formation in the presence of a magnetic field, the uniformity of distribution of particles on the plane perpendicular to the field direction shows very little change. However, the deviation of uniformity in particle distribution is reduced when the volume fraction of magnetic particles is the same as that of nonmagnetic particles.
Collapse
Affiliation(s)
- Y Ido
- Department of Engineering Physics, Electronics and Mechanics, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan.
| | | | | |
Collapse
|