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Kurosawa H, Tomita S, Sawada K, Nakanishi T, Ueda T. Unity-order magnetochiral effects exhibited by a single metamolecule. Opt Express 2022; 30:37066-37075. [PMID: 36258624 DOI: 10.1364/oe.469675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
A numerical study predicts that a single metamolecule with magnetism and chirality has giant magnetochiral (MCh) effects at microwave frequencies. The magnetism is provided by the ferromagnetic resonance of ferrite under dc bias magnetic fields, while the chirality is provided by the spiral arrangement of dielectric cubes with Mie resonance. The dielectric and magnetic resonances interfere in the metamolecule, resulting in a two-order of magnitude enhancement of the MCh effect compared with that reported in previous studies. This prediction is verified experimentally. A unity-order directional difference in the refractive index caused by the MCh effect is also demonstrated. This study is a significant milestone in the practical use of the MCh effect.
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Matsukiyo S, Yamazaki R, Morita T, Tomita K, Kuramitsu Y, Sano T, Tanaka SJ, Takezaki T, Isayama S, Higuchi T, Murakami H, Horie Y, Katsuki N, Hatsuyama R, Edamoto M, Nishioka H, Takagi M, Kojima T, Tomita S, Ishizaka N, Kakuchi S, Sei S, Sugiyama K, Aihara K, Kambayashi S, Ota M, Egashira S, Izumi T, Minami T, Nakagawa Y, Sakai K, Iwamoto M, Ozaki N, Sakawa Y. High-power laser experiment on developing supercritical shock propagating in homogeneously magnetized plasma of ambient gas origin. Phys Rev E 2022; 106:025205. [PMID: 36109929 DOI: 10.1103/physreve.106.025205] [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] [Received: 09/25/2020] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
A developing supercritical collisionless shock propagating in a homogeneously magnetized plasma of ambient gas origin having higher uniformity than the previous experiments is formed by using high-power laser experiment. The ambient plasma is not contaminated by the plasma produced in the early time after the laser shot. While the observed developing shock does not have stationary downstream structure, it possesses some characteristics of a magnetized supercritical shock, which are supported by a one-dimensional full particle-in-cell simulation taking the effect of finite time of laser-target interaction into account.
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Affiliation(s)
- S Matsukiyo
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- International Research Center for Space and Planetary Environmental Science, Kyushu University, Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - R Yamazaki
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Morita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - K Tomita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Division of Quantum Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Sano
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S J Tanaka
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Takezaki
- Faculty of Engineering, University of Toyama, 3190, Gofuku, Toyama 930-8555, Japan
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College, 5-20-1 Shii, Kokuraminamiku, Kitakyushu, Fukuoka 802-0985, Japan
| | - S Isayama
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- International Research Center for Space and Planetary Environmental Science, Kyushu University, Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
| | - T Higuchi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - H Murakami
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - Y Horie
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - N Katsuki
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - R Hatsuyama
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - M Edamoto
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - H Nishioka
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - M Takagi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - T Kojima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - S Tomita
- Astronomical Institute, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - N Ishizaka
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kakuchi
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Sei
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - K Sugiyama
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - K Aihara
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kambayashi
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - M Ota
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - S Egashira
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Izumi
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Nakagawa
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - K Sakai
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - M Iwamoto
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - N Ozaki
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
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Yamazaki R, Matsukiyo S, Morita T, Tanaka SJ, Umeda T, Aihara K, Edamoto M, Egashira S, Hatsuyama R, Higuchi T, Hihara T, Horie Y, Hoshino M, Ishii A, Ishizaka N, Itadani Y, Izumi T, Kambayashi S, Kakuchi S, Katsuki N, Kawamura R, Kawamura Y, Kisaka S, Kojima T, Konuma A, Kumar R, Minami T, Miyata I, Moritaka T, Murakami Y, Nagashima K, Nakagawa Y, Nishimoto T, Nishioka Y, Ohira Y, Ohnishi N, Ota M, Ozaki N, Sano T, Sakai K, Sei S, Shiota J, Shoji Y, Sugiyama K, Suzuki D, Takagi M, Toda H, Tomita S, Tomiya S, Yoneda H, Takezaki T, Tomita K, Kuramitsu Y, Sakawa Y. High-power laser experiment forming a supercritical collisionless shock in a magnetized uniform plasma at rest. Phys Rev E 2022; 105:025203. [PMID: 35291161 DOI: 10.1103/physreve.105.025203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
We present an experimental method to generate quasiperpendicular supercritical magnetized collisionless shocks. In our experiment, ambient nitrogen (N) plasma is at rest and well magnetized, and it has uniform mass density. The plasma is pushed by laser-driven ablation aluminum (Al) plasma. Streaked optical pyrometry and spatially resolved laser collective Thomson scattering clarify structures of plasma density and temperatures, which are compared with one-dimensional particle-in-cell simulations. It is indicated that just after the laser irradiation, the Al plasma is magnetized by a self-generated Biermann battery field, and the plasma slaps the incident N plasma. The compressed external field in the N plasma reflects N ions, leading to counterstreaming magnetized N flows. Namely, we identify the edge of the reflected N ions. Such interacting plasmas form a magnetized collisionless shock.
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Affiliation(s)
- R Yamazaki
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S Matsukiyo
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - T Morita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - S J Tanaka
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - T Umeda
- Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - K Aihara
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - M Edamoto
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - S Egashira
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - R Hatsuyama
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Higuchi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Hihara
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Horie
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - M Hoshino
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - A Ishii
- Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Mühlenberg 1, Potsdam-Golm 14476, Germany
| | - N Ishizaka
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Itadani
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Izumi
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - S Kambayashi
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kakuchi
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - N Katsuki
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - R Kawamura
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Kawamura
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kisaka
- Department of Physical Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - T Kojima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - A Konuma
- Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - R Kumar
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - I Miyata
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - T Moritaka
- Fundamental Physics Simulation Research Division, National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - Y Murakami
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - K Nagashima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - Y Nakagawa
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Nishimoto
- School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Nishioka
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - Y Ohira
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - N Ohnishi
- Department of Aerospace Engineering, Tohoku University, 6-6 Aramaki Aza Aoba, Aoba, Sendai, Miyagi 980-8579, Japan
| | - M Ota
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - N Ozaki
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Sano
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Sakai
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S Sei
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - J Shiota
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Shoji
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - K Sugiyama
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - D Suzuki
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - M Takagi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - H Toda
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Tomita
- Astronomical Institute, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Tomiya
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - H Yoneda
- Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - T Takezaki
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College, 5-20-1 Shii, Kokuraminamiku, Kitakyushu, Fukuoka 802-0985, Japan
- Faculty of Engineering, University of Toyama, 3190, Gofuku, Toyama 930-8555, Japan
| | - K Tomita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Division of Quantum Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
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Tomita S, Nakanishi N, Ogata T, Suga T, Tsuji Y, Sakamoto A, Higuchi Y, Matoba S. Cavin-1 modulates BMP/Smad signaling through the interaction of Caveolin-1 with BMPRII in pulmonary artery endothelial cells. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Pulmonary hypertension (PH) is a progressive disease associated with poor outcomes. Caveolin-1 (Cav1) and Cavin-1 are components of caveolae, and Cav1 is identified as a related gene of pulmonary arterial hypertension (PAH). Gene mutations of bone morphogenetic protein type II receptor (BMPRII) is the most common cause of PAH. BMPRII is localized in caveolae and associates with Cav1. However, the role of the Caveolin-Cavin system on the BMP/Smad signaling and the PAH progression has not been well-known.
Purpose
Our study aims to investigate the relationship between Caveolin-Cavin system and BMP/Smad signaling pathway in pulmonary artery endothelial cells (PAECs). [Methods] Cav1 knockout mice were used to assess PH, and caveolae in PAECs were observed by electron microscope. After knocking down Cav1 and/or Cavin-1 in human PAECs (hPAECs) using siRNA, we evaluated the phosphorylation of Smad by Western blotting. Apoptosis was explored by flow cytometry. To assess the interaction between Cav1 and BMPRII, and the effect of Cavin-1 for this interaction and BMP/Smad signaling, we performed immunoprecipitation, Co-immunostaining, Proximal Ligation Assay (PLA), GST pulldown assay, and Western blotting.
Results
As in previous reports, Cav1 knockout mice exhibited PH with pulmonary vascular remodeling and right ventricular hypertrophy and PAECs isolated from Cav1 knockout mice showed caveolae disappearance. Cav1 knockdown in hPAECs reduced BMPRII at the plasma membrane and Smad 1/5/9 phosphorylation. Cav1 knockdown also significantly increased hypoxia-induced apoptosis in hPAECs. Co-immunostaining revealed that Cav1 was associated with BMPRII at the membrane of hPAECs. Cavin-1 inhibited the interaction of BMPRII with Cav1 and reduced BMPRII localization on the membrane of hPAECs. GST pulldown assay revealed that Cavin-1 and BMPRII were associated with Cav1 through the scaffolding domain in Cav1. These findings suggest that Cavin-1 and BMPRII are competitively associated with Cav1. Cavin-1 knockdown improved the interaction between Cav1 and BMPRII and inhibited both BMPRII reduction at the plasma membrane and Smad 1/5/9 dephosphorylation.
Conclusions
Cavin-1 affects the interaction of Cav1 with BMPRII at the plasma membrane and modulates BMP/Smad signaling in PAECs. The binding of Cavin-1 to Cav1 enhances the interaction between BMPR2 and Cav1, resulting in stabilization of BMPRII localization at the plasma membrane in PAECs and prevention of BMP/Smad signaling attenuation, which is important for PAH development.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Tomita
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Nakanishi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Ogata
- Kyoto Prefectural University of Medicine, Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto, Japan
| | - T Suga
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Tsuji
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - A Sakamoto
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Higuchi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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Jo T, Tomita S, Kohmatsu Y, Osathanunkul M, Ushimaru A, Minamoto T. Seasonal monitoring of Hida salamander Hynobius kimurae using environmental DNA with a genus-specific primer set. ENDANGER SPECIES RES 2020. [DOI: 10.3354/esr01073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The diversity and the abundance of amphibians have dramatically declined globally over the past 30 years, and the monitoring and conservation of their habitats is essential. However, traditional methods such as bait trapping and mark-recapture are costly, and morphological identification usually requires a high level of taxonomic expertise. Here, seasonal surveillances of Hida salamanderHynobius kimuraewere performed by means of environmental DNA (eDNA) analysis withHynobius-specific primers and a species-specific TaqMan probe. Water sampling and visual surveys were conducted seasonally in a stream in Kyoto Prefecture, Japan. Detection rates of eDNA were then calculated by real-time PCR, and eDNA site occupancy probability was estimated by multi-scale occupancy modeling. The eDNA-based detection rate of Hida salamander was 76.7%, whereas the visual survey-based detection rate was 23.3%, and target eDNA was detected at almost all sites where the presence of target species was visually confirmed. Moreover, factors relating to the site- and sample-level occurrence probabilities of the target eDNA differed depending on the developmental stage of the target species. Our findings support previous studies showing that eDNA analysis enables an effective assessment of amphibian distributions without damaging the organisms or their habitat, and we compare for the first time the site occupancy probability of amphibian eDNA throughout the life cycle of an amphibian species. The present study contributes to the development of eDNA analysis as a tool for understanding the distribution and seasonal activity of amphibian species and will thus aid in the planning of conservation measures and habitat restoration for these species.
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Affiliation(s)
- T Jo
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe City, Hyogo 657-8501, Japan
- Research Fellow of Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - S Tomita
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe City, Hyogo 657-8501, Japan
| | - Y Kohmatsu
- Ritsumeikan-Global Innovation Research Organization, 56-1, Tojiin-Kitamachi, Kita-ku, Kyoto City, Kyoto 603-8577, Japan
| | - M Osathanunkul
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Center of Excellence in Bioresources for Agriculture, Industry and Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - A Ushimaru
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe City, Hyogo 657-8501, Japan
| | - T Minamoto
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe City, Hyogo 657-8501, Japan
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Takino K, Kameshima M, Asai C, Kawamura I, Tomita S, Hirakawa A, Yamada S. Efficacy of neuromuscular electro stimulation on muscle strength in elderly patients with diabetes mellitus underwent cardiovascular surgery – a multicenter randomized controlled trial. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Cardiovascular surgery causes muscle weakness probably due to a postoperative increase in inflammatory cytokine production, and diabetes mellitus (DM) may promote the postoperative muscle weakness because of increased insulin resistance.
Purpose
A multicenter randomized controlled trial was conducted to examine the effects of postoperative neuromuscular electrical stimulation (NMES) on muscle strength for elderly patients with DM after cardiovascular surgery (UMIN000029940).
Methods
Patients underwent cardiovascular surgery were consecutive screened for eligibility (With DM and age ≥65 years) as study subjects. If eligible, patients were randomly assigned either to the NMES or the sham group. Both of group underwent NMES or sham stimulation (60 minutes / 5 times) and usual postoperative early mobilization program until postoperative day (POD) 7. The primary outcome was the percent change in knee extensor isometric muscle strength (%ΔKEIS) between preoperative to POD 7. Secondary outcomes were the percent change in usual (%ΔUsual walking speed) and maximum walking speed (%ΔMaximum walking speed) and grip strength (%ΔGS). Assessors for physical function were blinded to the outcomes. The statistician who was blinded to the allocation analyzed the data using preoperative value adjusted ANCOVA.
Results
Of 1151 consecutive patients screened for eligibility from February 2018 to January 2020, 158 participants (NMES group, n=79; sham group, n=79) were enrolled. NMES group demonstrated significantly lower %ΔKEIS compared with those in the sham group (Table). Among secondary outcomes, NMES group showed significantly lower %ΔMaximum walking speed and tendency of lower %ΔUsual walking speed and %ΔGS (Table).
Conclusion
NMES prevented postoperative muscle weakness in the elderly patients with DM, indicating that NMES along with early mobilization could be implicated as specific intervention to those populations.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Takino
- Nagoya University Graduate School of Medicine, Program in Physical and Occupational Therapy, Nagoya, Japan
| | - M Kameshima
- Nagoya Heart Center, Department of cardiac rehabilitation, Nagoya, Japan
| | - C Asai
- Toyohashi Heart Center, Department of cardiac rehabilitation, Toyohashi, Japan
| | - I Kawamura
- Gifu Heart Center, Department of cardiology, Gifu, Japan
| | - S Tomita
- Gifu Heart Center, Department of cardiovascular surgery, Gifu, Japan
| | - A Hirakawa
- University of Tokyo, Department of Biostatics and Bioinformatics, Tokyo, Japan
| | - S Yamada
- Nagoya University Graduate School of Medicine, Department of Health Sciences, Nagoya, Japan
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Tomita S, Nakanishi N, Ogata T, Tsuji Y, Sakamoto A, Higuchi Y, Matoba S. Cavin-1 regulates BMP/Smad signaling through the interaction of Caveolin-1 with BMPRII in pulmonary artery endothelial cells. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Pulmonary hypertension (PH) is a progressive disease associated with poor outcome. Caveolin-1 (Cav1) is a component of caveolae and classified as a related gene of pulmonary arterial hypertension (PAH). Gene mutations of bone morphogenetic protein type II receptor (BMPRII) is a most common cause of PAH. BMPRII is localized in caveolae and associates with Cav1. However, the role of the Caveolin-Cavin system on the BMP/Smad signaling and the PAH progression has not been well-known.
Purpose
The aim of our study is to investigate the relationship between Caveolin-Cavin system and BMP/Smad signaling pathway and explore the mechanism of downstream signal transduction of BMP signaling by the interaction between Caveolin and BMPRII.
Methods
Cav1 knockout mice were used to assess PH and caveolae in pulmonary artery endothelial cells were observed by electron microscope. Cav1 and Cavin-1, which is a component of caveolae and form a complex with Cav1, were knocked-down in human pulmonary artery endothelial cell (hPAEC) using siRNA and phosphorylation of Smad signal was evaluated. Apoptosis of these cells was explored by flow cytometry. We investigated the interaction between Cav1 and BMPRII, and evaluated whether Cavin-1 affects this interaction and signal transduction of BMP signaling.
Results
As previously described, deletion of Cav1 revealed disappearance of caveolae in pulmonary artery endothelial cells (PAECs), and Cav1 knockout mice exhibited PH with pulmonary vascular remodeling and right ventricular hypertrophy. We then examined roles of Cav1 in human PAECs (hPAECs). Cav1 knockdown in hPAECs reduced phosphorylation of Smad 1/5/9. In addition, Cav1 knockdown significantly increased hypoxia-induced apoptosis in hPAEC. Knockdown of Cavin-1 reversed phosphorylation of Smad 1/5/9 decreased by Cav1 knockdown in BMP9 stimulation. Cavin-1 reversed the expression of BMPRII decreased by overexpression of Cav1. Cav1 was associated with Cavin-1 at the plasma membrane in PAECs. Cav1 also associated with BMPRII at the membrane of hPAECs that was inhibited by Cavin-1, and Cavin-1 reduced the localization of BMPRII to the membrane of hPAECs. These results suggest that BMPRII interacts with Cav1 via Cavin-1-associated localization at the plasma membrane in hPAECs, resulting in regulating BMP/Smad signaling pathway and involving in the development of PAH.
Conclusions
Cavin-1 affects the interaction of Cav1 with BMPRII at the membrane of PAECs, and regulates BMP/Smad signaling. These results reveal a previously undescribed function of Cavin-Caveolin system in the development of PAH through regulation of BMP/Smad signaling.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Tomita
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Nakanishi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Ogata
- Kyoto Prefectural University of Medicine, Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto, Japan
| | - Y Tsuji
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - A Sakamoto
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Higuchi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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Sakamoto A, Ogata T, Nakanishi N, Higuchi Y, Tsuji Y, Tomita S, Matoba S. SDPR/Cavin-2 loss inhibits monocyte adhesion to endothelial cells in abdominal aortic aneurysm via suppressing the expression of adhesion molecules. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Abdominal aortic aneurysm (AAA) is a common and life-threatening vascular disease. The initial phase of AAA progression is vascular inflammation. Inflammation sites present adhesion molecules, such as vascular cell adhesion molecule-1 (VCAM-1) and intracellular cell adhesion molecule-1 (ICAM-1). These molecules play a crucial role in recruiting inflammatory cells to endothelial cells through NF-κB signaling. Endothelial cells express serum deprivation response (SDPR)/Cavin-2 localized in caveolae on the cell membrane. Although Cavin-2 is involved in such as cell proliferation, migration, and signal transduction, the role of Cavin-2 in vascular inflammation in the development of AAA is still unclear.
Purpose
To assess the influence of Cavin-2 deficiency in AAA development and clarify the role of Cavin-2 in the regulation of inflammatory cell adhesion in endothelial cells.
Methods
CaCl2-induced AAAs were induced by the periaortic application of 0.5 M CaCl2 in male SDPR-knockout (KO) and wild-type (WT) mice at 8–10 weeks of age. Angiotensin II (Ang II)-induced AAAs were created by 4-week-subcutaneous drug infusion in male ApoE-KO and ApoE/Cavin-2-double KO (DKO) mice at 24 weeks of age. Inflammatory response and cell adhesion were evaluated using human aortic endothelial cells (HAECs) and human monocytes (THP-1 cells).
Results
Six weeks after CaCl2 treatment, Cavin-2 deficiency significantly attenuated the development of AAAs. Elastin degradation was markedly suppressed and F4/80-positive macrophages infiltration in aortic walls were decreased in Cavin-2-KO mice. Although Ang II infusion for 4 weeks formed AAAs in ApoE KO mice and ApoE/Cavin-2-DKO mice, ApoE/Cavin-2-DKO mice exhibited the suppression of AAA formation independently of blood pressure. Immunohistochemical staining showed VCAM-1 expression on endothelial cells was suppressed in ApoE/Cavin-2-DKO mice. Further, in vitro co-culture experiment, the number of THP-1 cells adhered to TNF-treated SDPR-knockdown HAECs was decreased compared with that to control HAECs. Moreover, mRNA expression of VCAM-1 and ICAM-1 was decreased in TNFα-treated SDPR-knockdown HAECSs. Protein expression of VCAM-1 was also suppressed in TNFα-treated SDPR-knockdown HAECSs. The activity of NF-κB p65, an upstream regulator of VCAM-1 and ICAM-1,tended to be suppressed in TNFα-treated SDPR-knockdown HAECs.
Conclusion
In this study, we revealed that SDPR/Cavin-2 loss attenuated AAA development with the suppression of elastin degradation and macrophage infiltration. Our findings suggest that SDPR/Cavin-2 in the endothelial cells regulates the expression of adhesion molecules via NF-κB signaling and promotes the adhesion and infiltration of inflammatory cells to the aortic wall.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- A Sakamoto
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Ogata
- Kyoto Prefectural University of Medicine, Department of Pathology and Cell Regulation, Kyoto, Japan
| | - N Nakanishi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Higuchi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Tsuji
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Tomita
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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9
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Gill C, Tomita S, Suhner J, D'Andrea M, Umphlett M, Blank S, Tsankova N, Shrivastava R, Fowkes M, Kolev V. Tumor infiltrating lymphocytes in brain metastases from gynecological malignancies. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Tomita S, Suhner J, Bucknor A, Orfanelli T, Carr C, Blank S, Loudon H. Perioperative bundle does not decrease the rate of surgical site infection in patients undergoing hysterectomy. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Sawada H, Oeda T, Kohsaka M, Tomita S, Umemura A, Park K, Yamamoto K, Kiyohara K. Early-start vs delayed-start donepezil against cognitive decline in Parkinson disease: a randomized clinical trial. Expert Opin Pharmacother 2020; 22:363-371. [PMID: 32867552 DOI: 10.1080/14656566.2020.1814255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Cholinergic neurotransmission regulates neuroinflammation in Parkinson disease (PD). RESEARCH DESIGN AND METHODS The authors conducted a delayed-start study of donepezil for cognitive decline in non-demented PD patients. The study consisted of a 96-week randomized placebo-controlled double-blind phase 1, followed by a 24-week donepezil extension phase 2. The primary outcome measure was a change in the Mini-Mental State Examination (MMSE) at week 120. RESULTS A total of 98 patients were randomly allocated to the early-start (donepezil-to-donepezil) and delayed-start (placebo-to-donepezil) groups. Mean (SD) of the baseline MMSE was 27.6 (2.0) and 28.0 (2.1), respectively. MMSE change at week 120 was better in the early-start group than in the delayed-start group, but the difference was not significant. The MMSE declined in apolipoprotein ε4 carriers, but not in non-carriers, and the factor interaction (intervention × ε4 genotype) was highly significant (P < 0.001). Analyzed with the interaction, the difference was significant (group difference 1.95 [0.33 to 3.57], P = 0.018). The MMSE decline slope in phase 1 was significantly better in the early-start group than in the delayed-start group (P = 0.048). CONCLUSIONS Cognitive function deteriorated in ε4 carriers, but not in non-carriers, and early-start donepezil may postpone cognitive decline in the former.
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Affiliation(s)
- Hideyuki Sawada
- Department of Neurology, Utano National Hospital, National Hospital Organization , Kyoto, Japan
| | - Tomoko Oeda
- Department of Neurology, Utano National Hospital, National Hospital Organization , Kyoto, Japan
| | - Masayuki Kohsaka
- Department of Neurology, Utano National Hospital, National Hospital Organization , Kyoto, Japan
| | - Satoshi Tomita
- Department of Neurology, Utano National Hospital, National Hospital Organization , Kyoto, Japan
| | - Atsushi Umemura
- Department of Neurology, Utano National Hospital, National Hospital Organization , Kyoto, Japan
| | - Kwiyoung Park
- Department of Neurology, Utano National Hospital, National Hospital Organization , Kyoto, Japan
| | - Kenji Yamamoto
- Department of Neurology, Utano National Hospital, National Hospital Organization , Kyoto, Japan
| | - Kosuke Kiyohara
- Department of Public Health, Tokyo Women's Medical University , Tokyo, Japan
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Suhner J, Tomita S, Kolev V. Retroperitoneal Lymph Nodes: Cytoreduction in a Patient with Ovarian Cancer. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Matsuda N, Fukuda N, Yamauchi M, Tsunoyama Y, Tomita S, Kita M. HIGH BACKGROUND AREA FOR RADIATION EDUCATION. Radiat Prot Dosimetry 2019; 184:294-297. [PMID: 31330016 DOI: 10.1093/rpd/ncz084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 06/10/2023]
Abstract
This paper describes our trial experience of the use of high radiation area for radiation education. We used environmental samples collected from the high radiation area in Fukushima prefecture and India, for the practice of radiation measurement and health risk assessment in Nagasaki University Medical School. We also carried out the field monitoring seminar for students in the existing exposure areas in Tottori prefecture and the Yamakiya observatory in Fukushima. Although the evaluation of educational effectiveness is still underway, both types of education appeared attractive for the students mostly due to the exposure from natural environment in our real life which was not achieved by using an artificial radiation source in a classroom.
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Affiliation(s)
- N Matsuda
- Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
| | - N Fukuda
- Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
| | - M Yamauchi
- Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
| | - Y Tsunoyama
- Radioisotope Research Center, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, Japan
| | - S Tomita
- Radiation Research and Management Center, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Japan
| | - M Kita
- Organization for Research Initiative and Promotion, Tottori University, 4-101 Koyama-cho Minami, Tottori, Japan
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14
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Sawada H, Oeda T, Kohsaka M, Umemura A, Tomita S, Park K, Mizoguchi K, Matsuo H, Hasegawa K, Fujimura H, Sugiyama H, Nakamura M, Kikuchi S, Yamamoto K, Fukuda T, Ito S, Goto M, Kiyohara K, Kawamura T. Early use of donepezil against psychosis and cognitive decline in Parkinson's disease: a randomised controlled trial for 2 years. J Neurol Neurosurg Psychiatry 2018; 89:1332-1340. [PMID: 30076270 PMCID: PMC6288700 DOI: 10.1136/jnnp-2018-318107] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 04/27/2018] [Accepted: 07/10/2018] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Brain acetylcholine is decreased even in patients with cognitively preserved Parkinson's disease (PD). We investigated whether early and long-term use of donepezil prevents psychosis in non-demented PD patients. METHODS A double-blinded, placebo-controlled trial was conducted. A total of 145 non-demented PD patients were randomly assigned to receive 5 mg/day donepezil (n=72) or placebo (n=73) for 96 weeks. Medications for PD were not restricted, but antipsychotic drugs were not permitted throughout the study. The primary outcome measure was survival time to psychosis that was predefined by Parkinson's Psychosis Questionnaire (PPQ) B score ≥2 or C score ≥2. Secondary outcome measures included psychosis developing within 48 weeks, total PPQ score, Mini-Mental State Examination (MMSE), Wechsler Memory Scale (WMS) and subgroup analysis by apolipoprotein ε4 genotyping. RESULTS Kaplan-Meier curves for psychosis development were very similar between the two groups, and the Cox proportional hazard model revealed an adjusted HR of 0.87 (95%CI 0.48 to 1.60). The changes in MMSE and WMS-1 (auditory memory) were significantly better with donepezil than in placebo. In the subgroup analysis, donepezil provided an HR of 0.31 (0.11-0.86) against psychosis in 48 weeks for apolipoprotein ε4 non-carriers. CONCLUSIONS Although donepezil provided beneficial effects on PPQ, MMSE and auditory WMS score changes in 2 years, it had no prophylactic effect on development of psychosis in PD. Apolipoprotein ε4 may suppress the antipsychotic effect of donepezil. TRIAL REGISTRATION NUMBER UMIN000005403.
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Affiliation(s)
- Hideyuki Sawada
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Tomoko Oeda
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Masayuki Kohsaka
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Atsushi Umemura
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Satoshi Tomita
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Kwiyoung Park
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Kouichi Mizoguchi
- Department of Neurology, Shizuoka Medical Institute of Epilepsy and Neurological Disorders, Shizuoka City, Japan
| | - Hidenori Matsuo
- Department of Neurology, Nagasaki Kawatana Medical Center, Nagasaki, Japan
| | - Kazuko Hasegawa
- Department of Neurology, Sagamihara National Hospital, Sagamihara, Japan
| | - Harutoshi Fujimura
- Clinical Research Center and Department of Neurology, Toneyama National Hospital, Toyonaka, Japan
| | - Hiroshi Sugiyama
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
- Department of Neurology, Minami-Kyoto National Hospital, Joyo, Japan
| | | | - Seishi Kikuchi
- Department of Neurology, Hokkaido Medical Center, Sapporo, Japan
| | - Kenji Yamamoto
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Toshiaki Fukuda
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Suminobu Ito
- Clinical Research Center, National Hospital Organization, Meguro, Japan
| | - Masashi Goto
- Division of General Internal Medicine, Kyoto Medical Center, Kyoto, Japan
| | - Kosuke Kiyohara
- Department of Public Health, Tokyo Women's Medical University, Shinjuku-ku, Japan
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15
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Park K, Oeda T, Kohsaka M, Tomita S, Umemura A, Sawada H. Low body mass index and life prognosis in Parkinson's disease. Parkinsonism Relat Disord 2018; 55:81-85. [DOI: 10.1016/j.parkreldis.2018.05.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/04/2018] [Accepted: 05/14/2018] [Indexed: 12/14/2022]
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16
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Yokote A, Tomita S, Sawada H. Sensory ganglionopathy associated with drug-induced hypersensitivity syndrome caused by mexiletine. BMJ Case Rep 2018; 2018:bcr-2017-222540. [PMID: 30077976 DOI: 10.1136/bcr-2017-222540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Although various causes are reported for sensory ganglionopathy, drug-induced hypersensitivity syndrome (DIHS) has not been considered a possibility. We describe a 70-year-old woman, previously administered mexiletine hydrochloride for 4 weeks, who presented with systemic oedematous erythema and subacute progressive gait disturbance. Evaluation revealed lymphadenopathy with atypical lymphocytosis and eosinophilia, and human herpesvirus 6 (HHV-6) reactivation. Neurological examination indicated the almost complete loss of joint positional sense in her extremities; her tendon reflex was lost and there was marked pseudoathetosis and Romberg's sign. Skin biopsy revealed spongiosis with lymphocyte infiltration. Based on these findings, we diagnosed acute sensory ganglionopathy secondary to DIHS. Although her DIHS-induced symptoms subsided after methylprednisolone treatment, partial remission of sensory ganglionopathy occurred, even after subsequent intravenous immunoglobulin therapy. This case suggests the possibility that reactivation of HHV-6 may be involved in the pathomechanism of sensory ganglionopathy.
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Affiliation(s)
- Akira Yokote
- Department of Neurology, Fukuoka University School of Medicine, Fukuoka, Japan.,Department of Neurology, Utano National Hospital, National Hospital Organization, Kyoto, Japan
| | - Satoshi Tomita
- Department of Neurology, Utano National Hospital, National Hospital Organization, Kyoto, Japan
| | - Hideyuki Sawada
- Department of Neurology, Utano National Hospital, National Hospital Organization, Kyoto, Japan
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17
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Kawamura I, Yoshizane T, Tanaka R, Minatoguchi S, Nagaya M, Ono K, Iwama M, Okumura N, Tsuchiya A, Tomita S, Matsuo H, Noda T, Suzuki T, Minatoguchi S, Kawasaki M. P6510Noninvasive evaluation of left ventricular relaxation and stiffness as diastolic function using speckle tracking echocardiography: validation study by cardiac catheterization. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - T Yoshizane
- Gifu Prefectural General Medical Center, Gifu, Japan
| | - R Tanaka
- Murakami Memorial Hospital, Gifu, Japan
| | | | - M Nagaya
- Gifu Prefectural General Medical Center, Gifu, Japan
| | - K Ono
- Gifu Prefectural General Medical Center, Gifu, Japan
| | - M Iwama
- Gifu Prefectural General Medical Center, Gifu, Japan
| | | | | | | | | | - T Noda
- Gifu Prefectural General Medical Center, Gifu, Japan
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18
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Sawada H, Umemura A, Kohsaka M, Tomita S, Park K, Oeda T, Yamamoto K. Pharmacological interventions for anxiety in Parkinson’s disease sufferers. Expert Opin Pharmacother 2018; 19:1071-1076. [DOI: 10.1080/14656566.2018.1485650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hideyuki Sawada
- Department of Neurology & Clinical Research Center, Utano National Hospital, Kyoto, Japan
| | - Atsushi Umemura
- Department of Neurology & Clinical Research Center, Utano National Hospital, Kyoto, Japan
| | - Masayuki Kohsaka
- Department of Neurology & Clinical Research Center, Utano National Hospital, Kyoto, Japan
| | - Satoshi Tomita
- Department of Neurology & Clinical Research Center, Utano National Hospital, Kyoto, Japan
| | - Kwiyoung Park
- Department of Neurology & Clinical Research Center, Utano National Hospital, Kyoto, Japan
| | - Tomoko Oeda
- Department of Neurology & Clinical Research Center, Utano National Hospital, Kyoto, Japan
| | - Kenji Yamamoto
- Department of Neurology & Clinical Research Center, Utano National Hospital, Kyoto, Japan
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19
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Tomita S, Oeda T, Umemura A, Kohsaka M, Park K, Yamamoto K, Sugiyama H, Sawada H. Video-fluoroscopic swallowing study scale for predicting aspiration pneumonia in Parkinson's disease. PLoS One 2018; 13:e0197608. [PMID: 29874285 PMCID: PMC5991364 DOI: 10.1371/journal.pone.0197608] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 05/04/2018] [Indexed: 11/30/2022] Open
Abstract
Introduction A number of video-fluoroscopic swallowing study (VFSS) abnormalities have been reported in patients with Parkinson’s disease (PD). However, the most crucial finding of subsequent aspiration pneumonia has not been validated fully. We conducted a retrospective and case-control study to determine the clinically significant VFSS findings in this population, and to propose a practical scale for predicting aspiration pneumonia in patients with PD. Methods We enrolled 184 PD patients who underwent VFSS because of suspected dysphagia. The patients who developed aspiration pneumonia within six months of the VFSS were assigned as cases and the patients without aspiration pneumonia at six months were designated as controls. Logistic regression analysis was performed to determine the prognostic VFSS features based on the data of swallowing 3 mL of jelly, which were used to make a PD VFSS scale (PDVFS). The validity of the new PDVFS was evaluated by ROC analysis. Additionally, we used the survival time analysis to compare time to death between groups, stratified by the PDVFS score. Results Twenty-five patients developed aspiration pneumonia. Among the previously-proposed VFSS features, mastication, lingual motility prior to transfer, aspiration, and total swallow time were identified as significant prognostic factors. We combined these factors to form the PDVFS. The PDVFS score ranges from 0 to 12, with 12 being the worst. ROC analysis revealed 92% sensitivity and 82% specificity at a cutoff point of 3. The higher PDVFS group showed shorter time-to-death than the lower PDVFS group (log rank P = 0.001). Conclusion Our newly developed VFSS severity scale (based on jelly swallowing) for patients with PD was easy to rate and could predict subsequent aspiration pneumonia and poor prognosis in patients with PD.
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Affiliation(s)
- Satoshi Tomita
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Tomoko Oeda
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Atsushi Umemura
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Masayuki Kohsaka
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Kwiyoung Park
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Kenji Yamamoto
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Hiroshi Sugiyama
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Hideyuki Sawada
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
- * E-mail:
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20
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Goto W, Kashiwagi S, Asano Y, Takada K, Takahashi K, Hatano T, Takashima T, Tomita S, Motomura H, Ohsawa M, Hirakawa K, Ohira M. Correction to: Circulating tumor cell clusters-associated gene plakoglobin is a significant prognostic predictor in patients with breast cancer. Biomark Res 2018. [PMID: 29541473 PMCID: PMC5842620 DOI: 10.1186/s40364-018-0124-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- W Goto
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - S Kashiwagi
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - Y Asano
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - K Takada
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - K Takahashi
- 2Department of Pharmacology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - T Hatano
- 3Department of Plastic and Reconstructive Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - T Takashima
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - S Tomita
- 2Department of Pharmacology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - H Motomura
- 3Department of Plastic and Reconstructive Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - M Ohsawa
- 4Department of Diagnostic Pathology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - K Hirakawa
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - M Ohira
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
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Nogi H, Tomita S, Kamio M, Shioya H, Toriumi Y, Takeyama H. Abstract P4-13-16: Impact of immediate breast reconstruction after mastectomy on the outcome of patients receiving neoadjuvant chemotherapy. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-13-16] [Citation(s) in RCA: 1] [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: 11/16/2022]
Abstract
Abstract
Background and purpose
In breast cancer patients receiving neoadjuvant chemotherapy (NAC), immediate breast reconstruction (IBR) is controversial. IBR might favor recurrences and metastases due to delayed adjuvant radiation therapy.
We retrospectively investigated whether IBR after mastectomy influenced the outcome of patients receiving neoadjuvant chemotherapy.
Patients and methods
Between 2006 and 2016, 243 breast cancer patients received total mastectomy after NAC, 48 of whom underwent IBR. Patients receiving IBR (IBR group) were compared to patients who did not receive IBR (no-IBR group) over a prolonged median follow-up time (72.3 moths).
The regimen was 4 cycles of epirubicin (100 or 75 mg/m2), 5-fluorouracil (500 mg/m2), and cyclophosphamide (500 mg/m2) followed by 4 cycles of docetaxel (75 mg/m2). Post-mastectomy radiation was applied in cases treated by IBR following the same selection criteria as for standard mastectomy regardless of the reconstruction approach.
Results
Patients in the IBR group were on average younger than patients in no-IBR
group (p<0.001). The percentage of patients with clinical T1/2 tumor was 81.2% in the IBR group and 58.4% in no-IBR group (p=0.0042). 2 patients (4.2%) in the IBR group and 9 patients (4.6%) in no-IBR group showed the locoregional recurrences. 2 patients (4.2%) in the IBR group and 20 patients (10.3%) showed distant metastases. There were no significant differences.
Conclusions
IBR after total mastectomy was not associated with worse rate of locoregional recurrences in patients receiving NAC.
Citation Format: Nogi H, Tomita S, Kamio M, Shioya H, Toriumi Y, Takeyama H. Impact of immediate breast reconstruction after mastectomy on the outcome of patients receiving neoadjuvant chemotherapy [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-13-16.
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Affiliation(s)
- H Nogi
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - S Tomita
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - M Kamio
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - H Shioya
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - Y Toriumi
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - H Takeyama
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
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22
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Oguma J, Ozawa S, Kazuno A, Nitta M, Ninomiya Y, Tomita S. Clinicopahological features of superficial basaloid squamous cell carcinoma of the esophagus. Dis Esophagus 2017; 30:1-5. [PMID: 28881881 DOI: 10.1093/dote/dox076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Indexed: 12/11/2022]
Abstract
Basaloid squamous cell carcinoma (BSC) of the esophagus is classified as an epithelial malignant tumor and is a rare variant of squamous cell carcinoma (SCC). Most previous reports have suggested that advanced BSC has a poorer prognosis than typical SCC because of its high biological malignancy, but the biological activity of superficial BSC remains unclear. Twenty cases of superficial BSC, which underwent surgical resection in Tokai University Hospital between January 2004 and December 2013, were analyzed retrospectively. Among these cases, 19 cases with a T1 depth of invasion (BSC group) were compared with 180 cases of SCC that were resected during the same period and were pathologically diagnosed as T1 (SCC group). The frequency of lymph node metastasis in the T1 BSC group was significantly lower (2 patients, 11%) than that in the SCC group (84 patients, 47%) (P = 0.005). The frequency of lymphatic invasion in the BSC group was also lower (9 patients, 47%) than that in the SCC group (131 patients, 73%) (P = 0.021). The pathological type of the metastatic lymph node was BSC in all the superficial BSC cases with lymph node metastasis. This study demonstrated that lymph node metastasis was less likely to occur in cases with superficial BSC than in cases with superficial SCC.
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Affiliation(s)
- J Oguma
- Departments of Gastroenterological Surgery
| | - S Ozawa
- Departments of Gastroenterological Surgery
| | - A Kazuno
- Departments of Gastroenterological Surgery
| | - M Nitta
- Departments of Gastroenterological Surgery
| | - Y Ninomiya
- Departments of Gastroenterological Surgery
| | - S Tomita
- Pathology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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23
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Kohsaka M, Oeda T, Umemura A, Tomita S, Park K, Yamamoto K, Sugiyama H, Sawada H. Oxybuprocaine for apraxia of lid opening in Parkinson's disease: A placebo-controlled pilot trial. Mov Disord 2017; 33:494-495. [PMID: 29168901 DOI: 10.1002/mds.27243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 10/11/2017] [Accepted: 10/20/2017] [Indexed: 11/09/2022] Open
Affiliation(s)
- Masayuki Kohsaka
- Clinical Research Center and Department of Neurology, National Hospital Organization Utano Hospital, Kyoto, Japan
| | - Tomoko Oeda
- Clinical Research Center and Department of Neurology, National Hospital Organization Utano Hospital, Kyoto, Japan
| | - Atsushi Umemura
- Clinical Research Center and Department of Neurology, National Hospital Organization Utano Hospital, Kyoto, Japan
| | - Satoshi Tomita
- Clinical Research Center and Department of Neurology, National Hospital Organization Utano Hospital, Kyoto, Japan
| | - Kwiyoung Park
- Clinical Research Center and Department of Neurology, National Hospital Organization Utano Hospital, Kyoto, Japan
| | - Kenji Yamamoto
- Clinical Research Center and Department of Neurology, National Hospital Organization Utano Hospital, Kyoto, Japan
| | - Hiroshi Sugiyama
- Clinical Research Center and Department of Neurology, National Hospital Organization Utano Hospital, Kyoto, Japan
| | - Hideyuki Sawada
- Clinical Research Center and Department of Neurology, National Hospital Organization Utano Hospital, Kyoto, Japan
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24
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Goto W, Kashiwagi S, Asano Y, Takada K, Takahashi K, Noda S, Takashima T, Onoda N, Tomita S, Hirakawa K, Ohira M. Predictive value of the improvement in tumor microenvironment for progression in breast cancer patients treated with neoadjuvant chemotherapy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Sirota I, Tomita S, Borovich A. Intrauterine Device Removal in Early Pregnancy via “See and Treat” Hysteroscopy. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Suwa T, Tomita S, Hosoito N, Yanagi H. Magnetic Properties of Fibonacci-Modulated Fe-Au Multilayer Metamaterials. Materials (Basel) 2017; 10:ma10101209. [PMID: 29053595 PMCID: PMC5667015 DOI: 10.3390/ma10101209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/12/2017] [Accepted: 10/17/2017] [Indexed: 11/16/2022]
Abstract
Herein we experimentally study magnetic multilayer metamaterials with broken translational symmetry. Epitaxially-grown iron-gold (Fe-Au) multilayers modulated using Fibonacci sequence—referred to as magnetic inverse Fibonacci-modulated multilayers (IFMs)—are prepared using ultra-high-vacuum vapor deposition. Experimental results of in-situ reflection high-energy electron diffraction, magnetization curves, and ferromagnetic resonance demonstrate that the epitaxially-grown Fe-Au IFMs have quasi-isotropic magnetization, in contrast to the in-plane magnetization easy axis in the periodic multilayers.
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Affiliation(s)
- Tomomi Suwa
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
| | - Satoshi Tomita
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
| | - Nobuyoshi Hosoito
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
| | - Hisao Yanagi
- Graduate School of Materials Science, Nara Institute of Science and Technology, Nara 630-0192, Japan.
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27
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Park K, Oeda T, Umemura A, Kohsaka M, Tomita S, Sugiyama H, Sawada H. Homeostasis in lipid metabolism is impaired in Parkinson's disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Umemura A, Oeda T, Yamamoto K, Kohsaka M, Tomita S, Park K, Sugiyama H, Sawada H. Dementia in Parkinson’s disease is associated with the lateral cholinergic pathway. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Kitami Y, Mori T, Hayakawa I, Koide A, Ito A, Suzuki H, Tomita S, Warabi Y, Takahashi T, Miyama S. Neuromyelitis optica spectrum disorder (NMOSD) seropositive for AQP4-IGG more than 3 years before NMOSD onset. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Ohara H, Park K, Kosaka M, Umemura A, Tomita S, Tahara M, Yamamoto K, Oeda T, Sugiyama H, Sawada H. Cerebral infarctions with hypereosinophilic syndrome: A report of two cases. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Khan H, Boyden L, Tomita S, Choate K. 463 GJA1 mutations causing erythrokeratodermia variabilis et progressiva display increased connexin hemichannel activity. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Tsounapi P, Honda M, Dimitriadis F, Shimizu S, Shiomi T, Hikita K, Saito M, Tomita S, Sofikitis N, Takenaka A. Antioxidant treatment ameliorates diabetes-induced dysfunction of the vas deferens in a rat model. Andrologia 2017; 50. [PMID: 28224697 DOI: 10.1111/and.12795] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2016] [Indexed: 12/20/2022] Open
Abstract
Diabetes mellitus (DM) affects the male ejaculatory function. This study was designed to evaluate the role of oxidative stress in the development of diabetes-induced dysfunction of vas deferens (VD) in the rat. DM was induced by streptozotocin in 40 male Wistar rats. Subsequently, the diabetic animals were divided into three groups: DM group, DM + Eda group and DM + Tau group. These groups were administered saline, edaravone and taurine, respectively, daily for 4 weeks. Another group of ten rats served as a control group. DM was diagnosed in the 40 streptozotocin-injected rats. DM significantly reduced the VD weight. Additionally, DM induced in vitro VD hypercontractility, VD histological abnormalities and increased the serum and VD tissue concentration of malondialdehyde. VD immunohistochemistry revealed overexpression of three markers of oxidative stress. DM significantly reduced serum testosterone levels. No live birth was documented in all DM rats in mating experiments. Antioxidants significantly improved all the aforementioned parameters, except the testosterone levels. This study indicates a deleterious impact of DM-induced oxidative stress on VD histological and functional features. Antioxidant treatment may provide an adjunct tool to alleviate ejaculatory disorders for male patients with type 1 diabetes.
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Affiliation(s)
- P Tsounapi
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago, Japan
| | - M Honda
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago, Japan
| | - F Dimitriadis
- Department of Urology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - S Shimizu
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - T Shiomi
- Division of Organ Pathology, Department of Pathology, Faculty of Medicine, Tottori University, Yonago, Japan
| | - K Hikita
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago, Japan
| | - M Saito
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - S Tomita
- Department of Pharmacology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - N Sofikitis
- Department of Urology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - A Takenaka
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago, Japan
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Chumsri S, Lee MJ, Tomita Y, Lee S, Tomita S, Cruickshank S, Ordentlich P, Trepel JB. Abstract P2-11-10: Epigenetic immune modulation by entinostat in breast cancer: Correlative analysis of ENCORE 301 trial. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p2-11-10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Entinostat, a class I HDAC inhibitor (HDACi), has shown promising activity in ENCORE 301, a randomized, placebo-controlled, phase II trial of entinostat + exemestane (EE) vs. exemestane + placebo (EP) in advanced hormone receptor-positive breast cancer progressed on nonsteroidal aromatase inhibitors. ENCORE 301 met the primary progression free survival endpoint and showed a median 8.3-month improvement in the overall survival (OS) exploratory endpoint for the EE arm. Emerging preclinical work suggests that entinostat has immunomodulatory effects and can eradicate modestly immunogenic mouse tumors in combination with immune checkpoint blockade agents via reduction of circulating myeloid-derived suppressor cells (MDSC). Based on these data, we conducted an analysis of immune subsets in blood samples from ENCORE 301 breast cancer patients.
Method: Blood was collected from a subset of 49 patients (27 EE and 22 EP) representative of the 130 patients enrolled in ENCORE 301 on cycle 1 day 1 (C1D1; pre-treatment), C1D2, C1D8, and C1D15 for biomarker analysis. Of these, 34 patient samples (20 EE and 14 EP) were analyzed for circulating immune subsets. The percent change in subsets at C1D15 vs. baseline was assessed based on the following surface markers: Lin-MDSC (lin; CD3, CD19, CD56)-HLA-DR-CD11b+CD33+), granulocytic MDSC (CD14-CD11b+CD33+), monocytic MDSC (Lin-HLA-DR-CD11b+CD33+CD14+), immature MDSC (Lin-HLA-DR-CD11b+CD33+CD14-), CD8+ T-cells (CD4-CD8+), Foxp3-CD4+ T-cells (CD8-CD4+Foxp3-), and Tregs (CD4+CD8-CD25hiFoxp3+). Monocytes were analyzed for three populations: CD14+, CD14+HLA-DRhi, and CD14+HLA-DRlow/negative. In addition, PD-1, CTLA-4, and TIM-3 were measured on T-cell subsets, and CD40 was measured on MDSCs.
Results: In line with preclinical data, we observed a significant reduction in granulocytic MDSC (-14.67% vs. +20.56%, p 0.029) and monocytic MDSC (-62.3% vs. +1.97%, p 0.002) in EE. Entinostat did not alter immature MDSC levels (-20.9% vs. -15.0%, p 0.93) suggesting a downstream effect of entinostat on MDSC subsets. Interestingly, CD40, a costimulatory receptor required for MDSC-mediated immune suppression was significantly down-regulated in all MDSC subsets except granulocytic MDSC where a downward trend was observed. Entinostat did not significantly impact the ratio of CD8+ T-cells per CD4+ T-cells or per Tregs or alter expression of CTLA4, PD-1, or TIM3 on T-cell subsets. Reduced expression of HLA-DR on monocytes has been associated with poor prognosis in cancer. Consistent with entinostat-mediated immunomodulatory effects, a significant increase in the number of HLA-DR+ monocytes (34.1% vs. -11.38%, p 0.0004) and level of HLA-DR expression on monocytes (16.3% vs. -4.7%; p 0.015) was observed.
Conclusion: Data with entinostat combined with exemestane in ENCORE 301 provide the first evidence of HDACi-mediated reduction of immunosuppressive MDSCs and increased immunocompetent CD14+HLA-DRhi monocytes in patients. These findings may explain the improved OS seen with EE in ENCORE 301 and provide strong rationale for planned combination studies of entinostat with immune checkpoint blockade agents.
Citation Format: Chumsri S, Lee M-J, Tomita Y, Lee S, Tomita S, Cruickshank S, Ordentlich P, Trepel JB. Epigenetic immune modulation by entinostat in breast cancer: Correlative analysis of ENCORE 301 trial. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P2-11-10.
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Affiliation(s)
- S Chumsri
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - M-J Lee
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - Y Tomita
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - S Lee
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - S Tomita
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - S Cruickshank
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - P Ordentlich
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - JB Trepel
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
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Fujiwara S, Saitoh N, Tomita S, Abdalla MO, Iwase H, Nakao M. Abstract P3-05-10: Non-coding RNAs derived from near the ESR1 gene acts as a transcriptional regulator during estrogen deprivation adaptation of ER positive breast cancer cells. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p3-05-10] [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: 11/16/2022]
Abstract
Abstract
Endocrine therapies that blocks estrogen production are effective for estrogen receptor (ER)-positive breast cancer. However, endocrine therapy treated patients eventually experience relapse after a long period of estrogen deprivation. The mechanism underlying acquisition of estrogen independent growth by ER positive breast cancer cells remains unclear.
To understand such molecular mechanism, we used a cell model LTED (long term estrogen deprivation) which MCF7 cells were cultured under estrogen deprivation for 4-10 months. In LTED cells, we found that ER encoded gene ESR1 was up-regulated and ER overproduction was essential for estrogen-independent cell growth. We also revealed that RNA transcriptions of the ESR1 and several neighbor genes were co-induced from both coding and non-coding regions in LTED cells, using RNA-sequence. These highly transcribed regions were corresponded to active histone modifications and transcription factor bindings according to publically available genome-wide analyses data. Fluorescence in situ hybridization (FISH) analyses indicated that RNA from the chromatin domain region nearby ESR1 were co-localized and made foci in nucleus.
We found non-coding regions that are particularly highly transcribed. FISH analyses indicated that RNAs from these regions might interact with the parental ESR1 gene locus. Recent studies have shown that non-coding RNAs are involved in transcriptional regulation and chromatin regulation. To understand the role of the non-coding RNA, we have generated MCF7 cells lines that lack the non-coding site, using CRISPR/CAS9 system. We found that mRNA transcription of multiple genes including ESR1 were impaired by the deletion. These findings suggested that these non-coding RNAs may be involved in chromatin regulation of the chromatin domain nearby ESR1.
In this study, we found non-coding RNAs that control transcription of chromatin domain genes in ER positive breast cancer cells. Such non-coding RNA mediated transcriptional regulation might be critical for endocrine therapy resistance adaptation.
Citation Format: Fujiwara S, Saitoh N, Tomita S, Abdalla MO, Iwase H, Nakao M. Non-coding RNAs derived from near the ESR1 gene acts as a transcriptional regulator during estrogen deprivation adaptation of ER positive breast cancer cells. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P3-05-10.
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Affiliation(s)
- S Fujiwara
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - N Saitoh
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - S Tomita
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - MO Abdalla
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - H Iwase
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - M Nakao
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
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Tsounapi P, Honda M, Dimitriadis F, Shimizu S, Hikita K, Muraoka K, Sejima T, Saito M, Tomita S, Sofikitis N, Takenaka A. Post-fertilization effect of bilateral primary testicular damage induced by unilateral cryptorchidism in the rat model. Andrology 2016; 4:297-305. [DOI: 10.1111/andr.12154] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 11/27/2015] [Accepted: 11/30/2015] [Indexed: 01/16/2023]
Affiliation(s)
- P. Tsounapi
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - M. Honda
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - F. Dimitriadis
- Department of Urology; School of Medicine; University of Ioannina; Ioannina Greece
| | - S. Shimizu
- Department of Pharmacology; Kochi Medical School; Kochi University; Nankoku Kochi Japan
| | - K. Hikita
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - K. Muraoka
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - T. Sejima
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - M. Saito
- Department of Pharmacology; Kochi Medical School; Kochi University; Nankoku Kochi Japan
| | - S. Tomita
- Division of Molecular Pharmacology; Department of Pathophysiological and Therapeutic Science; Tottori University School of Medicine; Yonago Japan
| | - N. Sofikitis
- Department of Urology; School of Medicine; University of Ioannina; Ioannina Greece
| | - A. Takenaka
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
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36
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Oeda T, Umemura A, Mori Y, Tomita S, Kohsaka M, Park K, Inoue K, Fujimura H, Hasegawa H, Sugiyama H, Sawada H. Impact of glucocerebrosidase mutations on motor and nonmotor complications in Parkinson's disease. Neurobiol Aging 2015; 36:3306-3313. [PMID: 26422360 DOI: 10.1016/j.neurobiolaging.2015.08.027] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 08/02/2015] [Accepted: 08/29/2015] [Indexed: 12/16/2022]
Abstract
Homozygous mutations of the glucocerebrosidase gene (GBA) cause Gaucher disease (GD), and heterozygous mutations of GBA are a major risk factor for Parkinson's disease (PD). This study examined the impact of GBA mutations on the longitudinal clinical course of PD patients by retrospective cohort design. GBA-coding regions were fully sequenced in 215 PD patients and GD-associated GBA mutations were identified in 19 (8.8%) PD patients. In a retrospective cohort study, time to develop dementia, psychosis, wearing-off, and dyskinesia were examined. Survival time analysis followed a maximum 12-year observation (median 6.0 years), revealing that PD patients with GD-associated mutations developed dementia and psychosis significantly earlier than those without mutations (p < 0.001 and p = 0.017, respectively). Adjusted hazard ratios of GBA mutations were 8.3 for dementia (p < 0.001) and 3.1 for psychosis (p = 0.002). No statistically significant differences were observed for wearing-off and dyskinesia between the groups. N-isopropyl-p[(123)I] iodoamphetamine single-photon emission tomography pixel-by-pixel analysis revealed that regional cerebral blood flow was reduced in the bilateral parietal cortex, including the precuneus of GD-associated mutant PD patients, compared with matched PD controls without mutations.
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Affiliation(s)
- Tomoko Oeda
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Atsushi Umemura
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Yuko Mori
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Satoshi Tomita
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Masayuki Kohsaka
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Kwiyoung Park
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Kimiko Inoue
- Department of Neurology, Toneyama National Hospital, Osaka, Japan
| | | | - Hiroshi Hasegawa
- Department of Neurology, Minami-Kyoto National Hospital, Kyoto, Japan
| | - Hiroshi Sugiyama
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan
| | - Hideyuki Sawada
- Clinical Research Center and Department of Neurology, Utano National Hospital, Kyoto, Japan.
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Umemura A, Oeda T, Yamamoto K, Tomita S, Kohsaka M, Park K, Sugiyama H, Sawada H. Baseline Plasma C-Reactive Protein Concentrations and Motor Prognosis in Parkinson Disease. PLoS One 2015; 10:e0136722. [PMID: 26308525 PMCID: PMC4550234 DOI: 10.1371/journal.pone.0136722] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 08/07/2015] [Indexed: 01/01/2023] Open
Abstract
Background C-reactive protein (CRP), a blood inflammatory biomarker, is associated with the development of Alzheimer disease. In animal models of Parkinson disease (PD), systemic inflammatory stimuli can promote neuroinflammation and accelerate dopaminergic neurodegeneration. However, the association between long-term systemic inflammations and neurodegeneration has not been assessed in PD patients. Objective To investigate the longitudinal effects of baseline CRP concentrations on motor prognosis in PD. Design, Setting, and Participants Retrospective analysis of 375 patients (mean age, 69.3 years; mean PD duration, 6.6 years). Plasma concentrations of high-sensitivity CRP were measured in the absence of infections, and the Unified Parkinson’s Disease Rating Scale Part III (UPDRS-III) scores were measured at five follow-up intervals (Days 1–90, 91–270, 271–450, 451–630, and 631–900). Main Outcome Measure Change of UPDRS-III scores from baseline to each of the five follow-up periods. Results Change in UPDRS-III scores was significantly greater in PD patients with CRP concentrations ≥0.7 mg/L than in those with CRP concentrations <0.7 mg/L, as determined by a generalized estimation equation model (P = 0.021) for the entire follow-up period and by a generalized regression model (P = 0.030) for the last follow-up interval (Days 631–900). The regression coefficients of baseline CRP for the two periods were 1.41 (95% confidence interval [CI] 0.21–2.61) and 2.62 (95% CI 0.25–4.98), respectively, after adjusting for sex, age, baseline UPDRS-III score, dementia, and incremental L-dopa equivalent dose. Conclusion Baseline plasma CRP levels were associated with motor deterioration and predicted motor prognosis in patients with PD. These associations were independent of sex, age, PD severity, dementia, and anti-Parkinsonian agents, suggesting that subclinical systemic inflammations could accelerate neurodegeneration in PD.
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Affiliation(s)
- Atsushi Umemura
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Tomoko Oeda
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Kenji Yamamoto
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Satoshi Tomita
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Masayuki Kohsaka
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Kwiyoung Park
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Hiroshi Sugiyama
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Hideyuki Sawada
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
- * E-mail:
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Tomita S, Oeda T, Umemura A, Kohsaka M, Park K, Yamamoto K, Sugiyama H, Mori C, Inoue K, Fujimura H, Sawada H. Impact of Aspiration Pneumonia on the Clinical Course of Progressive Supranuclear Palsy: A Retrospective Cohort Study. PLoS One 2015; 10:e0135823. [PMID: 26270456 PMCID: PMC4536232 DOI: 10.1371/journal.pone.0135823] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 07/27/2015] [Indexed: 11/18/2022] Open
Abstract
Introduction Although aspiration pneumonia is the most common complication of progressive supranuclear palsy (PSP), the clinical impact of aspiration pneumonia on disease course and survival has not been fully estimated. Thus, we retrospectively analyzed the prognostic factors and clinical consequences of pneumonia in PSP. Methods The clinical course of patients with aspiration pneumonia was surveyed. The association between baseline clinical features (2 years from disease onset) and latency to the initial development of pneumonia was investigated using survival time and Cox regression analyses. Results Ninety patients with a clinical diagnosis of PSP were observed for 5.1±3.8 years (mean±SD), and 22 had aspiration pneumonia. Subsequently, 20 patients (91%) had to discontinue oral feeding entirely and 13 (59%) died, whereas, of 68 patients without pneumonia, only three patients (4%) died. Time to initial development of pneumonia was strongly correlated with survival time (Spearman R = 0.92, P<0.001), with a mean latency of 2.3 years to death. Among baseline clinical features, early fall episodes and cognitive decline were significant predictors of pneumonia (P = 0.001 and P<0.001, respectively, log rank test). Cox regression analysis demonstrated that early fall episodes (adjusted hazard ratio: 3.9, 95% confidence interval: 1.2–12.5, P = 0.03) and cognitive decline (adjusted hazard ratio: 5.2, 95% confidence interval: 1.4–19.3, P = 0.02) independently predicted pneumonia. By contrast, dysphagia was not associated with pneumonia (P = 0.2, log rank test). Conclusion Initial development of pneumonia indicates an unfavorable clinical course and predicts survival time (mean survival time 2.3 years). Patients with early falls and cognitive decline were at high risk of early development of pneumonia.
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Affiliation(s)
- Satoshi Tomita
- Clinical Research Center, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
- Department of Neurology, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
| | - Tomoko Oeda
- Clinical Research Center, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
- Department of Neurology, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
| | - Atsushi Umemura
- Clinical Research Center, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
- Department of Neurology, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
| | - Masayuki Kohsaka
- Clinical Research Center, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
- Department of Neurology, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
| | - Kwiyoung Park
- Clinical Research Center, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
- Department of Neurology, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
| | - Kenji Yamamoto
- Clinical Research Center, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
- Department of Neurology, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
| | - Hiroshi Sugiyama
- Department of Neurology, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
| | - Chiaki Mori
- Department of Neurology, Toneyama National Hospital, Osaka, Japan
| | - Kimiko Inoue
- Department of Neurology, Toneyama National Hospital, Osaka, Japan
| | | | - Hideyuki Sawada
- Clinical Research Center, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
- Department of Neurology, National Regional Center for Neurological Disorders and Utano National Hospital, Kyoto, Japan
- * E-mail:
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Abstract
Background C-reactive protein (CRP) is a biomarker of inflammation, and high levels of CRP correlate with vascular death. Chronic inflammation is considered to be involved in neurodegeneration, although there is no evidence linking it with the process of neurodegenerative diseases. Objective To determine the role of baseline CRP levels in the prognosis of patients with Parkinson disease (PD). Methods A cohort of 313 patients with a mean age of 69.1 and mean PD duration of 7.9 years was retrospectively followed for a mean observation time of 1,753 days. CRP was measured when patients were not diagnosed with any infections, and levels were repetitively measured to investigate a tendency of “regression to mean.” The primary outcome measure was a survival time from study enrollment to death. Results During the observation period 56 patients died. Baseline CRP was log-linearly associated with a risk of death in PD. Mean survival time was 3,149 (95% confidence interval; 3,009-3,289) days in patients with CRP ≤ 0.8mg/L (lower two thirds) and 2,620 (2,343-2,897) days in those with CRP > 0.8 mg/L (top third, p < 0.001, log-rank test). The adjusted hazard ratio (HR) per two-fold higher CRP concentration for all deaths was 1.29 (1.10-1.52), and after excluding PD-unrelated deaths, such as cancer or stroke, HR was 1.23 (1.01-1.49) (adjusted for age, sex, PD duration, modified Hohen-Yahr stages, MMSE scores, and serum albumin). Conclusions Baseline CRP concentrations were associated with the risk of death and predicted life prognosis of patients with PD. The associations were independent from PD duration, PD severity, cognitive function, ages, and nutritional conditions, suggesting the possibility that subclinical chronic inflammation is associated with a neurodegenerative process in PD.
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Affiliation(s)
- Hideyuki Sawada
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
- * E-mail:
| | - Tomoko Oeda
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Atsushi Umemura
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Satoshi Tomita
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Masayuki Kohsaka
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Kwiyoung Park
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Kenji Yamamoto
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
| | - Hiroshi Sugiyama
- Department of Neurology and Clinical Research Center, National Hospital of Utano, National Hospital Organization, Kyoto, Japan
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Tomita S, Sawada K, Porokhnyuk A, Ueda T. Direct observation of magnetochiral effects through a single metamolecule in microwave regions. Phys Rev Lett 2014; 113:235501. [PMID: 25526133 DOI: 10.1103/physrevlett.113.235501] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Indexed: 06/04/2023]
Abstract
We report direct observation of magnetochiral (MCh) effects for the X-band microwaves through a single metamolecule consisting of a copper chiral structure and ferrite rod. A fictitious interaction between chirality and magnetism is realized in the metamolecule without intrinsic electronic interactions. The MCh effects are induced at the resonant optical activities by applying a weak dc magnetic field of 1 mT, and are increased with the magnetic field. The nonreciprocal differences in refractive indices are evaluated to be 10^{-3} at 200 mT.
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Affiliation(s)
- Satoshi Tomita
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Kei Sawada
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Andrey Porokhnyuk
- Department of Electronics, Kyoto Institute of Technology, Matsugasaki, Sakyo, Kyoto 606-8585, Japan
| | - Tetsuya Ueda
- Department of Electronics, Kyoto Institute of Technology, Matsugasaki, Sakyo, Kyoto 606-8585, Japan
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Tomita S, Terao Y, Hatano T, Nishimura R. Subtotal glossectomy preserving half the tongue base prevents taste disorder in patients with tongue cancer. Int J Oral Maxillofac Surg 2014; 43:1042-6. [DOI: 10.1016/j.ijom.2014.02.006] [Citation(s) in RCA: 7] [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: 07/24/2013] [Revised: 01/06/2014] [Accepted: 02/17/2014] [Indexed: 11/27/2022]
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Umemura A, Oeda T, Tomita S, Hayashi R, Kohsaka M, Park K, Sugiyama H, Sawada H. Delirium and high fever are associated with subacute motor deterioration in Parkinson disease: a nested case-control study. PLoS One 2014; 9:e94944. [PMID: 24887491 PMCID: PMC4041721 DOI: 10.1371/journal.pone.0094944] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 03/21/2014] [Indexed: 11/19/2022] Open
Abstract
Background In Parkinson disease (PD), systemic inflammation caused by respiratory infections such as pneumonia frequently occurs, often resulting in delirium in the advanced stages of this disease. Delirium can lead to cognitive and functional decline, institutionalization, and mortality, especially in the elderly. Inflammation causes rapid worsening of PD motor symptoms and signs, sometimes irreversibly in some, but not all, patients. Purpose To identify factors associated with subacute motor deterioration in PD patients with systemic inflammation. Methods The association of clinical factors with subacute motor deterioration was analyzed by a case-control study. Subacute motor deterioration was defined as sustained worsening by one or more modified Hoehn and Yahr (H–Y) stages. Using multivariable logistic regression incorporating baseline characteristics (age, sex, PD duration, modified H–Y stage, dementia, and psychosis history) and statistically selected possible predictors (peak body temperature, duration of leukocytosis, and presence of delirium), the odds ratios for these factors were estimated as relative risks. Results Of 80 PD patients with systemic inflammation, 26 with associated subacute motor deterioration were designated as cases and the remainder as controls. In the 26 cases, 6 months after its onset the motor deterioration had persisted in 19 patients and resolved in four (three were lost for follow-up). Multivariable logistic regression analysis showed that delirium and body temperature are significantly associated with motor deterioration after systemic inflammation (P = 0.001 for delirium and P = 0.026 for body temperature), the adjusted odds ratios being 15.89 (95% confidence interval [CI]: 3.23–78.14) and 2.78 (95% CI: 1.13–6.83), respectively. Conclusions In patients with PD and systemic inflammation, delirium and high body temperature are strong risk factors for subsequent subacute motor deterioration and such deterioration can persist for over 6 months.
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Affiliation(s)
- Atsushi Umemura
- Clinical Research Center, National Hospital of Utano, Kyoto, Japan
- Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Tomoko Oeda
- Clinical Research Center, National Hospital of Utano, Kyoto, Japan
- Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Satoshi Tomita
- Clinical Research Center, National Hospital of Utano, Kyoto, Japan
- Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Ryutaro Hayashi
- Clinical Research Center, National Hospital of Utano, Kyoto, Japan
- Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Masayuki Kohsaka
- Clinical Research Center, National Hospital of Utano, Kyoto, Japan
- Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Kwiyoung Park
- Clinical Research Center, National Hospital of Utano, Kyoto, Japan
- Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Hiroshi Sugiyama
- Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Hideyuki Sawada
- Clinical Research Center, National Hospital of Utano, Kyoto, Japan
- Department of Neurology, National Hospital of Utano, Kyoto, Japan
- * E-mail:
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Kakimoto N, Shimamoto H, Chindasombatjaroen J, Tsujimoto T, Tomita S, Hasegawa Y, Murakami S, Furukawa S. Comparison of the T2 relaxation time of the temporomandibular joint articular disk between patients with temporomandibular disorders and asymptomatic volunteers. AJNR Am J Neuroradiol 2014; 35:1412-7. [PMID: 24742804 DOI: 10.3174/ajnr.a3880] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE T2 relaxation time is a quantitative MR imaging parameter used to detect degenerated cartilage in the knee and lumbar intervertebral disks. We measured the T2 relaxation time of the articular disk of the temporomandibular joint in patients with temporomandibular disorders and asymptomatic volunteers to demonstrate an association between T2 relaxation time and temporomandibular disorder MR imaging findings. MATERIALS AND METHODS One hundred forty-four patients with temporomandibular disorders and 17 volunteers were enrolled in this study. An 8-echo spin-echo sequence for measuring the T2 relaxation times was performed in the closed mouth position, and the T2 relaxation time of the entire articular disk was measured. Patients were classified according to the articular disk location and function, articular disk configuration, presence of joint effusion, osteoarthritis, and bone marrow abnormalities. RESULTS The T2 relaxation time of the entire articular disk was 29.3 ± 3.8 ms in the volunteer group and 30.7 ± 5.1 ms in the patient group (P = .177). When subgroups were analyzed, however, the T2 relaxation times of the entire articular disk in the anterior disk displacement without reduction group, the marked or extensive joint effusion group, the osteoarthritis-positive group, and the bone marrow abnormality-positive group were significantly longer than those in the volunteer group (P < .05). CONCLUSIONS The T2 relaxation times of the articular disk of the temporomandibular joint in patients with progressive temporomandibular disorders were longer than those of healthy volunteers.
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Affiliation(s)
- N Kakimoto
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - H Shimamoto
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - J Chindasombatjaroen
- Department of Oral and Maxillofacial Radiology (J.C.), Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - T Tsujimoto
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Tomita
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Y Hasegawa
- Department of Dentistry and Oral Surgery (Y.H.), Hyogo College of Medicine, Hyogo, Japan
| | - S Murakami
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Furukawa
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
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Umehara S, Kishimoto T, Nomachi M, Ajimura S, Nakatani N, Matsuoka K, Ichimura K, Saka M, Ishikawa T, Tanaka D, Tanaka M, Yoshida S, Suzuki K, Ito G, Kakubata H, Wang W, Takemoto J, Chan WM, Doihara M, Tamagawa Y, Ogawa I, Ueno T, Maeda S, Yamamoto A, Tomita S, Fujita G, Kawamura A, Harada T, Fushimi K, Hazama R, Ohsumi H, Okada K. CANDLES. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146608008] [Citation(s) in RCA: 7] [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] [Indexed: 11/15/2022] Open
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Shimizu S, Oikawa R, Tsounapi P, Inoue K, Shimizu T, Tanaka K, Martin DT, Honda M, Sejima T, Tomita S, Saito M. Blocking of the ATP sensitive potassium channel ameliorates the ischaemia-reperfusion injury in the rat testis. Andrology 2014; 2:458-65. [PMID: 24604784 DOI: 10.1111/j.2047-2927.2014.00199.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 10/17/2013] [Revised: 01/21/2014] [Accepted: 02/01/2014] [Indexed: 12/17/2022]
Abstract
There is increasing evidence that the effects of administered ATP sensitive potassium (KATP ) channel openers or blockers during ischaemia are still controversial in many organs/tissues. Testicular torsion detorsion which causes ischaemia-reperfusion (IR) injury, cannot be predicted, thus an effective drug should be administered during or after the ischaemia. The aim of this study was to examine whether the administration of KATP channel openers or blockers during ischaemia ameliorates IR injury in the testis. Eight-week-old male Sprague-Dawley rats were subjected to 2 h right testicular ischaemia followed by 24 h reperfusion. The selective mitochondrial (mito) KATP channel blocker, 5-hydroxydecanoate (5-HD) (40 mg/kg), the non-selective KATP channel blocker glibenclamide (5 mg/kg), the selective mito KATP channel opener diazoxide (10 mg/kg) and the non-selective KATP channel opener cromakalim (300 μg/kg) were administered intraperitoneally 15 min prior to the ischaemia or 75 min after the induction of ischaemia. Tissue damage was evaluated by malondialdehyde concentration, myeloperoxidase activity, histological evaluation and TdT-mediated dUTP nick end labelling assay in the testis. There was a significant increase in oxidative stress, neutrophil infiltration, histological damage and apoptosis in the testicular IR model. A significant reduction in the testicular IR injury was observed with the administration of glibenclamide, but not 5-HD, diazoxide or cromakalim during ischaemia. The administration of non-selective KATP channel blocker glibenclamide ameliorated the testicular IR injury. On the other hand, the selective mito KATP channel blocker, 5-HD and KATP channel openers did not reduce the testicular IR injury. These data suggest that blocking of the membrane KATP channel may have a protective effect during the testicular ischaemia. Glibenclamide could be an effective drug to manage the post-ischaemic injury caused by the testicular torsion-detorsion.
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Affiliation(s)
- S Shimizu
- Division of Molecular Pharmacology, Tottori University School of Medicine, Yonago, Japan
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Sawada H, Oeda T, Umemura A, Tomita S, Hayashi R, Kohsaka M, Yamamoto K, Sudoh S, Sugiyama H. Subclinical elevation of plasma C-reactive protein and illusions/hallucinations in subjects with Parkinson's disease: case-control study. PLoS One 2014; 9:e85886. [PMID: 24497930 PMCID: PMC3908859 DOI: 10.1371/journal.pone.0085886] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 12/03/2013] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Though infections are associated with psychotic symptoms, whether or not subclinical inflammation is associated with hallucinations is not known in Parkinson's disease (PD). PURPOSE To investigate the association of illusions/hallucinations and plasma CRP levels in PD patients without symptomatic infections. METHODS PD patients not diagnosed as having infections were assessed for illusions and hallucinations using the Parkinson Psychosis Questionnaire (PPQ). It comprises four-domain questions: PPQ-A for sleep problems, PPQ-B for hallucinations/illusions, PPQ-C for delusions, and PPQ-D for disorientation. Assigning patients with ≥1 points in the PPQ-B score to be cases and others as controls, the association of hallucinations/illusions and clinical features (age, sex, duration of PD, Unified Parkinson's Disease Rating Scale part 3 (UPDRS-3), Mini-Mental State Examination (MMSE) score, sleep disturbance (PPQ-A score) as well as daily doses of L-Dopa, dopamine agonists, amantadine, and selegiline) were analyzed using a case-control design. RESULTS A total of 111 patients were examined and plasma CRP levels were <0.1-6.0 mg/L. Hallucinations or illusions were detected in 28 (25.2%). There were significant differences in age, UPDRS-3 score, MMSE score, PPQ-A, daily doses of L-Dopa and dopamine agonists and plasma CRP levels between cases and controls. A multivariate logistic regression model revealed that UPDRS-3 scores and plasma CRP levels were significantly associated with hallucinations/illusions with an adjusted odds ratio of 1.96 (95% confidence interval (CI) 1.20-3.20) per 10 points and 1.57 (95% confidence interval 1.13-2.16) per two-fold, respectively. Dividing patients into thirds by CRP levels (≤0.2, 0.3-0.6, ≥0.7 mg/L), the prevalence of hallucinations/illusions was 13.2%, 21.6%, and 41.7%, in the bottom-, middle-, and top-thirds, respectively (for trend p = 0.012). CONCLUSIONS Subclinical elevation of plasma CRP levels was associated with hallucinations or illusions after adjustment for motor disability, suggesting that subclinical elevations of CRP levels might be an independent risk for hallucinations/illusions.
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Affiliation(s)
- Hideyuki Sawada
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Tomoko Oeda
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Atsushi Umemura
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Satoshi Tomita
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Ryutaro Hayashi
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Masayuki Kohsaka
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Kenji Yamamoto
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Shinji Sudoh
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
| | - Hiroshi Sugiyama
- Clinical Research Center and Department of Neurology, National Hospital of Utano, Kyoto, Japan
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Felix F, Zallis MG, Tomita S, Baptista MM, Ribeiro MG. Evaluation of the presence of the 35delG mutation in patients with severe to profound hearing loss based on ethnicity. Rev Laryngol Otol Rhinol (Bord) 2014; 135:171-174. [PMID: 26521363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
INTRODUCTION The 35delG mutation in the connexin 26 gene is the most common mutation that generates deafness, but its frequency in different countries is strongly based on its ethnicity. Brazilians belong to different ethnic groups. OBJECTIVES To report the frequency of homo and heterozygosis 35delG mutation in a population with severe to profound bilateral sensorineural deafness, and separate them by ethnicity. METHODS 100 individuals were studied with severe to profound hearing loss, with no other etiology found, and tested for 35delG mutation. The group presented the following ethnicity distribution: 25% Blacks; 30% Latin Europeans; 26.2% Blacks/Latin Europeans and 2.3% native. RESULTS The 35delG mutation was found in 20% of patients: 15% were heterozygous and 5% homozygous. All homozygous were of Latin European origin. CONCLUSION Ethnicity shows marked determination of the presence of the 35delG mutation, and it was only found in homozygosis in the group of Latin Europeans.
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Yamaguchi T, Ichikawa K, Sano Y, Sano W, Ikumoto T, Iwatate M, Tomita S, Kato H, Fujimori T. Education and Imaging. Gastrointestinal: sessile serrated adenoma/polyps with a minute T1 colorectal carcinoma. J Gastroenterol Hepatol 2014; 29:1. [PMID: 24354988 DOI: 10.1111/jgh.12465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- T Yamaguchi
- Department of Surgery 1, Dokkyo Medical University, Shimotsuga, Tochigi, Japan; Department of Surgical and Molecular Pathology, Dokkyo Medical University, Shimotsuga, Tochigi, Japan
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Sawada H, Oeda T, Yamamoto K, Umemura A, Tomita S, Hayashi R, Kohsaka M, Kawamura T. Trigger medications and patient-related risk factors for Parkinson disease psychosis requiring anti-psychotic drugs: a retrospective cohort study. BMC Neurol 2013; 13:145. [PMID: 24119306 PMCID: PMC3879653 DOI: 10.1186/1471-2377-13-145] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [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: 12/07/2012] [Accepted: 10/09/2013] [Indexed: 11/21/2022] Open
Abstract
Background Psychoses such as hallucinations are a frequent non-motor problem in patients with Parkinson disease (PD) and serious psychosis requires anti-psychotic medications that worsen Parkinsonism. Although psychosis could be associated with patient-related or biological factors such as cognition, age, and severity of PD, it can also be associated with medications. Therefore we aimed to investigate patient-related and medication-related risks of psychosis requiring anti-psychotic medications (serious psychosis). Methods A retrospective cohort of 331 PD patients was followed for 2 years. Patient-related factors associated with risk of psychosis were identified by a survival time analysis. In patients who developed psychosis, medications during the hazard period (1-14 days before psychosis) were contrasted with those during the control periods (1 and 3 months before psychosis) using a case–crossover analysis to identify medication-related risks of psychosis. Results Serious psychosis was detected in 52 patients and the incidence was estimated to be 116 (95% confidence interval [CI], 85-148) per 1,000 person-years. Analyses of baseline characteristics revealed the risk to be higher in patients with a modified Hoehn–Yahr stage of ≥4 (hazard ratio [HR], 2.22; 95% CI, 1.11-4.40), those with a longer duration of PD (HR, 1.25; 95% CI, 1.00-1.55, per 5 years) and those with Mini-Mental State Examination scores of ≤24 (HR, 2.66; 95% CI, 1.37-5.16). The case-crossover analysis revealed that anti-cholinergics use (HR, 19.7; 95% CI, 2.39-162) elevated the risk, while donepezil use reduced it (HR, 0.48; 95% CI, 0.27-0.85). Conclusions Risk of psychosis was elevated by increasing severity of PD, cognitive dysfunction and duration of the disease. It was elevated by use of anti-cholinergic drugs and reduced by use of donepezil. The medication-related risk was higher in patients aged ≥ 70 years. In contrast, there was no significant medication-related risk in younger patients, suggesting different pathomechanisms between young and old patients.
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Affiliation(s)
- Hideyuki Sawada
- Clinical Research Center, 8 Ondoyamacho, Narutaki, Ukyoku Kyoto 616-8255, Japan.
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Tomita S, Terao Y, Hatano T. Evaluation of taste sensation after subtotal glossectomy. Int J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.ijom.2013.07.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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