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Nomura M, Okamura H, Horie Y, Yap CK, Emmanouil C, Uwai S, Kawai H. Effects of antifouling compounds on the growth of macroalgae Undaria pinnatifida. Chemosphere 2023; 312:137141. [PMID: 36343734 DOI: 10.1016/j.chemosphere.2022.137141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Seaweeds are some of the principal primary producers of marine environments, and they are important ecological elements of coastal ecosystems. The effects of harmful chemicals on seaweeds may adversely affect coastal ecosystems, hence we aimed to develop a new phytotoxicity test using the gametophytes of a common temperate kelp species, Undaria pinnatifida (KU-1630), for the widely used antifouling chemical substances Cybutryne, Diuron, Cu2+, and Zn2+. Toxicity to gametophytes of U. pinnatifida was assessed by comparing the relative growth rate (RGR) at the logarithmic growth phase. Fragmentation method, initial algal biomass, photon irradiance, and adhesive period were investigated for developing optimal test conditions. Cybutryne exposure tests were performed with seven replicates and control, the RGR ranging from 0.17 to 0.19, while mean 7-day EC50 and no observed effect concentration (NOEC) were 5.1 μg/L and 1.8 μg/L, respectively. The 7-day EC50 for other antifoulants was 14 μg/L for Diuron, 17 μg/L for Cu2+, and 1500 μg/L for Zn2+. This test method demonstrated high sensitivity and reproducibility, and it may be added to the routine methods used for toxicity evaluation of hazardous chemicals.
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Affiliation(s)
- M Nomura
- Graduate School of Maritime Sciences, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan
| | - H Okamura
- Research Center for Inland Seas, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan.
| | - Y Horie
- Research Center for Inland Seas, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan
| | - C K Yap
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - C Emmanouil
- School of Spatial Planning and Development, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - S Uwai
- Research Center for Inland Seas, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan
| | - H Kawai
- Research Center for Inland Seas, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan
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Horie Y, Horiuchi Y, Ishiyama A, Tsuchida T, Yoshimizu S, Hirasawa T, Fujisaki J, Maetani I, Yoshio T. The effect of antithrombotic drug use on delayed bleeding with esophageal endoscopic resection. J Gastroenterol Hepatol 2022; 37:1792-1800. [PMID: 35844140 DOI: 10.1111/jgh.15944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 07/02/2022] [Accepted: 07/11/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM Whether antithrombotic drugs increase the risk of post-esophageal endoscopic resection bleeding is unknown. This study examined the effect of antithrombotic drugs, aspirin, thienopyridine, direct oral anticoagulants (DOAC), and warfarin, on post-esophageal endoscopic resection bleeding. METHODS We enrolled 957 patients (1202 esophageal tumors) treated with endoscopic resection and classified them based on antithrombotic drug use as no use, aspirin, thienopyridine, DOAC, and warfarin. Patients using antiplatelet drugs (i.e. aspirin and thienopyridine) were further sub-classified based on their continued or discontinued use before endoscopic resection. The bleeding rates were compared between these groups to assess the effects of antithrombotic drug use and interruption of antiplatelet therapy on post-esophageal endoscopic resection bleeding. RESULTS The post-endoscopic resection bleeding rate was 0.3% (95% CI, 0.1-1) in the group without antithrombotic drug use, 4.5% (95% CI, 0.1-23) in the aspirin-continued group, 2.9% (95% CI, 0.1-15) in the aspirin-discontinued group, 0% (95% CI, 0-78) in the replaced thienopyridine with aspirin group, 0% (95% CI, 0-26) in the thienopyridine-discontinued group, 13% (95% CI, 1.6-38) in the DOAC group, and 0% (95% CI, 0-45) in the warfarin group. The post-endoscopic resection bleeding rate in the DOAC group was significantly higher than that in the group without antithrombotic drugs (P = 0.003). The post-endoscopic resection bleeding rates did not differ between the other groups. CONCLUSIONS Our results suggest that discontinuing aspirin is not necessary for esophageal endoscopic resection while we must be careful regarding DOAC.
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Affiliation(s)
- Yoshimasa Horie
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.,Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Yusuke Horiuchi
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Akiyoshi Ishiyama
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Tomohiro Tsuchida
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shoichi Yoshimizu
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Toshiaki Hirasawa
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Junko Fujisaki
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Iruru Maetani
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Toshiyuki Yoshio
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
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3
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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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Kawakami H, Oyamada S, Horie Y, Fumita S, Izawa N, Miyaji T, Kawaguchi T, Yamaguchi T, Nakajima T. P-35 An observational study of health-related quality of life (HRQoL) with electronic patient-reported outcome (ePRO) monitoring during nivolumab therapy for advanced gastric cancer as the 3rd or later line treatment: NIVO-G QoL study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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5
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Ando T, Nakashima K, Yoshita H, Sakumura M, Nomura M, Muto M, Fujii H, Horie Y, Takeda H, Yoshii T, Tahara Y, Katada C, Yoshimura K, Ishikawa H, Hosokawa A. P-108 A phase II study of weekly paclitaxel in patients with advanced or recurrent esophageal cancer who had previously received docetaxel-containing chemotherapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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6
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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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7
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Kishi Y, Aota Y, Horie Y, Sutoh A, Moriyama M, Okabe M, Iguchi T, Yokouchi Y, Gotoh A, Maetani I. [Idiopathic esophageal submucosal hematoma during antithrombotic therapy for essential thrombocythemia]. Rinsho Ketsueki 2022; 63:265-270. [PMID: 35491215 DOI: 10.11406/rinketsu.63.265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A 73-year-old woman was hospitalized with sudden chest pain and hematemesis. Chest computed tomography and upper gastrointestinal endoscopy revealed an idiopathic submucosal hematoma from the cervical esophagus to the esophagogastric mucosal junction. Idiopathic esophageal submucosal hematoma is often prone to a bleeding tendency of an underlying disorder. The patient had a history of essential thrombocythemia (ET) and was taking aspirin. She successfully recovered after aspirin discontinuation and conservative treatment; however, died of cardiopulmonary arrest in the ward on day 9 of hospitalization. The autopsy revealed that the cause of death was pulmonary thromboembolism. This is the first report of ET with submucosal hematoma of the esophagus. The possibility of an esophageal submucosal hematoma should be considered when patients with ET complain of chest pain since ET and treatment with aspirin are considered risk factors for bleeding. Additionally, close attention should be focused on the risk of developing thrombosis if a patient with myeloproliferative neoplasm is required to discontinue antithrombotic therapy due to a bleeding event.
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Affiliation(s)
- Yosuke Kishi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University, Ohashi Medical Center
- Department of Internal Medicine, Kohsei Chuo General Hospital
| | - Yasuo Aota
- Department of Internal Medicine, Kohsei Chuo General Hospital
- Department of Hematology, Tokyo Medical University
| | - Yoshimasa Horie
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University, Ohashi Medical Center
| | - Arisa Sutoh
- Department of Internal Medicine, Kohsei Chuo General Hospital
- Department of Hematology, Tokyo Medical University
| | - Mitsuru Moriyama
- Department of Internal Medicine, Kohsei Chuo General Hospital
- Department of Hematology, Tokyo Medical University
| | - Masahiro Okabe
- Department of Internal Medicine, Kohsei Chuo General Hospital
| | - Toyotaka Iguchi
- Department of Hematology, National Hospital Organization Tokyo Medical Center
| | - Yuki Yokouchi
- Department of Surgical Pathology, Toho University, Ohashi Medical Center
| | - Akihiko Gotoh
- Department of Internal Medicine, Kohsei Chuo General Hospital
- Department of Hematology, Tokyo Medical University
| | - Iruru Maetani
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University, Ohashi Medical Center
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8
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Yamamoto H, Oikawa R, Takeda H, Umemoto K, Doi A, Horie Y, Ogura T, Mizukami T, Izawa N, Moore J, Sokol E, Sunakawa Y. 1423P Genomic landscape in advanced gastric cancer from real-world data (RWD) of clinical genomic testing. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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9
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Takahashi N, Izawa N, Nishio K, Masuishi T, Shoji H, Yamamoto Y, Matsumoto T, Sugiyama K, Kajiwara T, Kawakami K, Aomatsu N, Kawakami H, Esaki T, Narita Y, Hara H, Horie Y, Boku N, Miura K, Moriwaki T, Shimokawa M, Nakajima T, Muro K. O-6 Gene alterations in ctDNA related to the resistance mechanism of anti-EGFR antibodies and clinical efficacy outcomes of anti-EGFR antibody rechallenge plus trifluridine/tipiracil in metastatic colorectal cancer patients in WJOG8916G trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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10
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Tokai Y, Yoshio T, Aoyama K, Horie Y, Yoshimizu S, Horiuchi Y, Ishiyama A, Tsuchida T, Hirasawa T, Sakakibara Y, Yamada T, Yamaguchi S, Fujisaki J, Tada T. Application of artificial intelligence using convolutional neural networks in determining the invasion depth of esophageal squamous cell carcinoma. Esophagus 2020; 17:250-256. [PMID: 31980977 DOI: 10.1007/s10388-020-00716-x] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 01/12/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES In Japan, endoscopic resection (ER) is often used to treat esophageal squamous cell carcinoma (ESCC) when invasion depths are diagnosed as EP-SM1, whereas ESCC cases deeper than SM2 are treated by surgical operation or chemoradiotherapy. Therefore, it is crucial to determine the invasion depth of ESCC via preoperative endoscopic examination. Recently, rapid progress in the utilization of artificial intelligence (AI) with deep learning in medical fields has been achieved. In this study, we demonstrate the diagnostic ability of AI to measure ESCC invasion depth. METHODS We retrospectively collected 1751 training images of ESCC at the Cancer Institute Hospital, Japan. We developed an AI-diagnostic system of convolutional neural networks using deep learning techniques with these images. Subsequently, 291 test images were prepared and reviewed by the AI-diagnostic system and 13 board-certified endoscopists to evaluate the diagnostic accuracy. RESULTS The AI-diagnostic system detected 95.5% (279/291) of the ESCC in test images in 10 s, analyzed the 279 images and correctly estimated the invasion depth of ESCC with a sensitivity of 84.1% and accuracy of 80.9% in 6 s. The accuracy score of this system exceeded those of 12 out of 13 board-certified endoscopists, and its area under the curve (AUC) was greater than the AUCs of all endoscopists. CONCLUSIONS The AI-diagnostic system demonstrated a higher diagnostic accuracy for ESCC invasion depth than those of endoscopists and, therefore, can be potentially used in ESCC diagnostics.
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Affiliation(s)
- Yoshitaka Tokai
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
| | - Toshiyuki Yoshio
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan.
| | | | - Yoshimasa Horie
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Ohashi Medical Center, Meguro, Tokyo, Japan
| | - Shoichi Yoshimizu
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
| | - Yusuke Horiuchi
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
| | - Akiyoshi Ishiyama
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
| | - Tomohiro Tsuchida
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
| | - Toshiaki Hirasawa
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
| | - Yuko Sakakibara
- Department of Gastroenterology, Osaka National Hospital, Osaka, Japan
| | - Takuya Yamada
- Department of Gastroenterology, Osaka Rosai Hospital, Sakai, Osaka, Japan
| | - Shinjiro Yamaguchi
- Department of Gastroenterology, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Junko Fujisaki
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan
| | - Tomohiro Tada
- AI Medical Service Inc., Toshima, Tokyo, Japan
- Tada Tomohiro Institute of Gastroenterology and Proctology, Saitama, Japan
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11
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Uneno Y, Sato K, Morita T, Nishimura M, Ito S, Mori M, Shimizu C, Horie Y, Hirakawa M, Nakajima TE, Tsuneto S, Muto M. Current status of integrating oncology and palliative care in Japan: a nationwide survey. BMC Palliat Care 2020; 19:12. [PMID: 31980015 PMCID: PMC6982384 DOI: 10.1186/s12904-020-0515-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 01/13/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Palliative care (PC) is increasingly recognized as essential for oncology care, and several academic societies strongly recommend integrating oncology and palliative care (IOP) in daily practice. Similarly, the Japanese government encouraged the implementation of IOP through the Cancer Control Act of 2007; however, its detailed progress remains unclear. Therefore, this cross-sectional nationwide survey was conducted to investigate the current status and hospital executive physicians' perception of IOP. METHODS The questionnaire was developed based on IOP indicators with international consensus. It was distributed to executive physicians at all government-designated cancer hospitals (DCHs, n = 399) and matched non-DCHs (n = 478) in November 2017 and the results were compared. RESULTS In total, 269 (67.4%) DCHs and 259 (54.2%) non-DCHs responded. The number of PC resources in DCHs was significantly higher than those in non-DCHs (e.g., full-time PC physicians and nurses, 52.8% vs. 14.0%, p < 0.001; availability of outpatient PC service ≥3 days per week, 47.6% vs. 20.7%, p < 0.001). Routine symptom screening was more frequently performed in DCHs than in non-DCHs (65.1% vs. 34.7%, p < 0.001). Automatic trigger for PC referral availability was limited (e.g., referral using time trigger, 14.9% vs. 15.3%, p = 0.700). Education and research opportunities were seriously limited in both types of hospitals. Most executive physicians regarded IOP as beneficial for their patients (95.9% vs. 94.7%, p = 0.163) and were willing to facilitate an early referral to PC services (54.7% vs. 60.0%, p < 0.569); however, the majority faced challenges to increase the number of full-time PC staff, and < 30% were planning to increase the staff members. CONCLUSIONS This survey highlighted a considerable number of IOP indicators met, particularly in DCHs probably due to the government policy. Further efforts are needed to address the serious research/educational gaps.
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Affiliation(s)
- Y Uneno
- Department of Therapeutic Oncology, Graduate School of Medicine, Kyoto University, 54 Kawaharacho Shogoin Sakyo-ku, Kyoto, 606-8507, Japan. .,Seirei Hospice, Seirei Mikatahara General Hospital, Hamamatsu, Japan.
| | - K Sato
- Department of Nursing, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Morita
- Division of Supportive and Palliative Care, Seirei Mikatahara General Hospital, Hamamatsu, Japan
| | - M Nishimura
- Geriatric Health Service Facility, You-You no Sono, Hiroshima, Japan.,Department of Health Informatics, Kyoto University Graduate School of Medicine/ School of Public Health, Kyoto, Japan
| | - S Ito
- Department of Health Informatics, Kyoto University Graduate School of Medicine/ School of Public Health, Kyoto, Japan
| | - M Mori
- Palliative Care Team, Seirei Mikatahara General Hospital, Hamamatsu, Japan
| | - C Shimizu
- Department of Breast Medical Oncology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Y Horie
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki, Japan
| | - M Hirakawa
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki, Japan
| | - T E Nakajima
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki, Japan
| | - S Tsuneto
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - M Muto
- Department of Therapeutic Oncology, Graduate School of Medicine, Kyoto University, 54 Kawaharacho Shogoin Sakyo-ku, Kyoto, 606-8507, Japan
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12
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Ide D, Saito S, Ohya TR, Nishikawa Y, Horie Y, Yasue C, Chino A, Igarashi M, Saruta M, Fujisaki J. Colorectal endoscopic submucosal dissection can be efficiently performed by a trainee with use of a simple traction device and expert supervision. Endosc Int Open 2019; 7:E824-E832. [PMID: 31198847 PMCID: PMC6561769 DOI: 10.1055/a-0901-7113] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 02/26/2019] [Indexed: 02/07/2023] Open
Abstract
Background and study aims Colorectal endoscopic submucosal dissection (ESD) is technically challenging owing to submucosal fibrosis and difficult endoscope manipulation. Therefore, various traction methods have been reported. We often use a simple looped nylon thread attached to a clip to assist with dissection. We assessed the feasibility of mentor-guided colorectal ESD using this traction device (TD). Patients and methods From December 2017 to March 2018, we retrospectively reviewed outcomes of 101 colorectal ESDs performed by two groups of endoscopists (A, 5 endoscopists with colorectal ESD experience of < 50 cases; B, 5 endoscopists with experience of > 300 cases). Group A was further divided into two subgroups that performed ESD with or without TD. Results No significant difference was observed in ESD completion rates (86.1 % [62/72] vs. 96.6 % [28/29]; odds ratio [OR], 0.22; 95 % confidence interval [CI], 0.005 - 1.71; P = 0.17) or procedure times (52.0 min vs. 40.0 min; P = 0.27) and adverse event rates between groups A and B. The rate of TD use was significantly higher in group A than in group B (44.4 % [32/72] vs. 20.7 % [6/29]; OR, 3.03; CI, 1.04 - 10.23; P = 0.03). The completion rate was not different between the two subgroups of group A (with vs. without TD) (81.2 % [26/32] vs. 90.0 % [36/40]; OR, 0.49; CI, 0.09 - 2.29; P = 0.32); however, the proportion of fibrosis cases was significantly higher in the TD-use group (46.8 % [15/32] vs. 22.5 % [9/40]; OR, 2.99; CI, 0.98 - 9.59; P = 0.03). Conclusion Mentor-guided colorectal ESD using TD was performed efficiently, safely, and in a manner comparable to that of experts.
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Affiliation(s)
- Daisuke Ide
- Department of Lower Gastrointestinal Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan,Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University School of Medicine, Tokyo, Japan,Corresponding author Daisuke Ide, MD, PhD Department of Lower Gastrointestinal MedicineThe Cancer Institute Hospital of Japanese Foundation for Cancer Research3-8-31, Ariake, KotoTokyo 135-8550Japan+81-3-3520-0141
| | - Shoichi Saito
- Department of Lower Gastrointestinal Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | | | - Yuske Nishikawa
- Department of Lower Gastrointestinal Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yoshimasa Horie
- Department of Lower Gastrointestinal Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Chihiro Yasue
- Department of Lower Gastrointestinal Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Akiko Chino
- Department of Lower Gastrointestinal Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masahiro Igarashi
- Department of Lower Gastrointestinal Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masayuki Saruta
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University School of Medicine, Tokyo, Japan
| | - Junko Fujisaki
- Department of Upper Gastrointestinal Medicine, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
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Hirasawa T, Ikenoyama Y, Horie Y, Ishioka M, Tamashiro A, Shiroma S, Namikawa K, Nakano K, Tokai Y, Yoshimizu S, Horiuchi Y, Ishiyama A, Yoshio T, Tsuchida T, Fujisaki J. [Endoscopic Diagnosis Using Artificial Intelligence]. Gan To Kagaku Ryoho 2019; 46:412-417. [PMID: 30914574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Image recognition using artificial intelligence(AI)has developed dramatically with innovative technologies such as machine learning and deep learning. Currently, it is considered that AI has exceeded human ability in image recognition. In the field of endoscopic diagnosis, development of computer-aided diagnosis(CAD)systems using AI is progressing. The CAD is expected to help endoscopists improve detection and characterization of polyp, cancer, and inflamation in all digestive area. Some CAD systemes showing ability better than endoscopists have been reported. It may be well applicable to daily clinical practice as real time endoscopic diagnosis in the near future.
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Affiliation(s)
- Toshiaki Hirasawa
- Dept. of Gastroenterology, The Cancer Institute, Japanese Foundation for Cancer Research
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14
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Osada Y, Horie Y, Nakae S, Sudo K, Kanazawa T. STAT6 and IL-10 are required for the anti-arthritic effects of Schistosoma mansoni via different mechanisms. Clin Exp Immunol 2019; 195:109-120. [PMID: 30194773 PMCID: PMC6300695 DOI: 10.1111/cei.13214] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/27/2018] [Accepted: 09/03/2018] [Indexed: 12/24/2022] Open
Abstract
To investigate possible roles of T helper type 2 (Th2) cytokines in the anti-arthritic effects of a blood fluke, Schistosoma mansoni (Sm), for mouse collagen-induced arthritis (CIA), wild-type (WT), signal transducer and activator of transcription 6 (STAT6) knock-out (KO) and interleukin (IL)-10 KO mice were infected with Sm. Three weeks after infection, the mice were immunized with bovine type II collagen (IIC). Arthritis severity was monitored by scoring, measurement of paw thickness and the presence of ankylosis. Serum anti-IIC IgG levels, splenic cytokine production and cytokine gene expression in the popliteal lymph nodes (PLNs) were measured and compared among WT and gene-KO mice. Consistent with our previous findings, Sm infection reduced the arthritis severity in WT mice. Splenic production of IL-17A and tumor necrosis factor (TNF)-α was reduced by the infection. In contrast, Sm infection markedly exacerbated CIA in STAT6 KO mice. In the KO mice, IL-17A production was increased by the infection. Conversely, Sm infection did not affect the exacerbated arthritis in IL-10 KO mice, although IL-17A production was reduced by the helminth. Our results suggest that signaling via STAT6 (presumably IL-4 and/or IL-13) and IL-10 is required for the suppression of CIA by Sm infection, but through different mechanisms. STAT6 was essential for helminth-induced reduction of IL-17A, whereas regulation of the basal arthritis severity by IL-10 was needed in order for it to be sufficiently suppressed by the helminth.
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Affiliation(s)
- Y. Osada
- Department of Immunology and ParasitologyUniversity of Occupational and Environmental HealthJapanKitakyushuJapan
| | - Y. Horie
- Department of Immunology and ParasitologyUniversity of Occupational and Environmental HealthJapanKitakyushuJapan
| | - S. Nakae
- Laboratory of Systems Biology, Center for Experimental Medicine and Systems Biology, Institute of Medical ScienceUniversity of TokyoTokyoJapan
| | - K. Sudo
- Animal Research CenterTokyo Medical UniversityTokyoJapan
| | - T. Kanazawa
- Department of Immunology and ParasitologyUniversity of Occupational and Environmental HealthJapanKitakyushuJapan
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15
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Horie Y, Yoshio T, Aoyama K, Yoshimizu S, Horiuchi Y, Ishiyama A, Hirasawa T, Tsuchida T, Ozawa T, Ishihara S, Kumagai Y, Fujishiro M, Maetani I, Fujisaki J, Tada T. Diagnostic outcomes of esophageal cancer by artificial intelligence using convolutional neural networks. Gastrointest Endosc 2019; 89:25-32. [PMID: 30120958 DOI: 10.1016/j.gie.2018.07.037] [Citation(s) in RCA: 220] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/29/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS The prognosis of esophageal cancer is relatively poor. Patients are usually diagnosed at an advanced stage when it is often too late for effective treatment. Recently, artificial intelligence (AI) using deep learning has made remarkable progress in medicine. However, there are no reports on its application for diagnosing esophageal cancer. Here, we demonstrate the diagnostic ability of AI to detect esophageal cancer including squamous cell carcinoma and adenocarcinoma. METHODS We retrospectively collected 8428 training images of esophageal cancer from 384 patients at the Cancer Institute Hospital, Japan. Using these, we developed deep learning through convolutional neural networks (CNNs). We also prepared 1118 test images for 47 patients with 49 esophageal cancers and 50 patients without esophageal cancer to evaluate the diagnostic accuracy. RESULTS The CNN took 27 seconds to analyze 1118 test images and correctly detected esophageal cancer cases with a sensitivity of 98%. CNN could detect all 7 small cancer lesions less than 10 mm in size. Although the positive predictive value for each image was 40%, misdiagnosing shadows and normal structures led to a negative predictive value of 95%. The CNN could distinguish superficial esophageal cancer from advanced cancer with an accuracy of 98%. CONCLUSIONS The constructed CNN system for detecting esophageal cancer can analyze stored endoscopic images in a short time with high sensitivity. However, more training would lead to higher diagnostic accuracy. This system can facilitate early detection in practice, leading to a better prognosis in the near future.
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Affiliation(s)
- Yoshimasa Horie
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan; Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Toshiyuki Yoshio
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan; Tada Tomohiro Institute of Gastroenterology and Proctology, Saitama, Japan
| | | | - Shoichi Yoshimizu
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yusuke Horiuchi
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Akiyoshi Ishiyama
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Toshiaki Hirasawa
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan; Tada Tomohiro Institute of Gastroenterology and Proctology, Saitama, Japan
| | - Tomohiro Tsuchida
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Tsuyoshi Ozawa
- Tada Tomohiro Institute of Gastroenterology and Proctology, Saitama, Japan; Surgery Department, Sanno Hospital, International University of Health and Welfare, Tokyo, Japan
| | - Soichiro Ishihara
- Tada Tomohiro Institute of Gastroenterology and Proctology, Saitama, Japan; Surgery Department, Sanno Hospital, International University of Health and Welfare, Tokyo, Japan
| | - Youichi Kumagai
- Department of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Iruru Maetani
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Junko Fujisaki
- Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Tomohiro Tada
- Tada Tomohiro Institute of Gastroenterology and Proctology, Saitama, Japan; AI Medical Service Inc, Tokyo, Japan; Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Hubka V, Barrs V, Dudová Z, Sklenář F, Kubátová A, Matsuzawa T, Yaguchi T, Horie Y, Nováková A, Frisvad J, Talbot J, Kolařík M. Unravelling species boundaries in the Aspergillus viridinutans complex (section Fumigati): opportunistic human and animal pathogens capable of interspecific hybridization. Persoonia 2018; 41:142-174. [PMID: 30728603 PMCID: PMC6344812 DOI: 10.3767/persoonia.2018.41.08] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [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: 09/28/2018] [Accepted: 03/14/2018] [Indexed: 12/13/2022]
Abstract
Although Aspergillus fumigatus is the major agent of invasive aspergillosis, an increasing number of infections are caused by its cryptic species, especially A. lentulus and the A. viridinutans species complex (AVSC). Their identification is clinically relevant because of antifungal drug resistance and refractory infections. Species boundaries in the AVSC are unresolved since most species have uniform morphology and produce interspecific hybrids in vitro. Clinical and environmental strains from six continents (n = 110) were characterized by DNA sequencing of four to six loci. Biological compatibilities were tested within and between major phylogenetic clades, and ascospore morphology was characterised. Species delimitation methods based on the multispecies coalescent model (MSC) supported recognition of ten species including one new species. Four species are confirmed opportunistic pathogens; A. udagawae followed by A. felis and A. pseudoviridinutans are known from opportunistic human infections, while A. felis followed by A. udagawae and A. wyomingensis are agents of feline sino-orbital aspergillosis. Recently described human-pathogenic species A. parafelis and A. pseudofelis are synonymized with A. felis and an epitype is designated for A. udagawae. Intraspecific mating assay showed that only a few of the heterothallic species can readily generate sexual morphs in vitro. Interspecific mating assays revealed that five different species combinations were biologically compatible. Hybrid ascospores had atypical surface ornamentation and significantly different dimensions compared to parental species. This suggests that species limits in the AVSC are maintained by both pre- and post-zygotic barriers and these species display a great potential for rapid adaptation and modulation of virulence. This study highlights that a sufficient number of strains representing genetic diversity within a species is essential for meaningful species boundaries delimitation in cryptic species complexes. MSC-based delimitation methods are robust and suitable tools for evaluation of boundaries between these species.
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Affiliation(s)
- V. Hubka
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
- First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - V. Barrs
- Sydney School of Veterinary Science, Faculty of Science, and Marie Bashir Institute of Infectious Diseases & Biosecurity, University of Sydney, Camperdown, NSW, Australia
| | - Z. Dudová
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
- First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - F. Sklenář
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - A. Kubátová
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
| | - T. Matsuzawa
- University of Nagasaki, 1-1-1 Manabino, Nagayo-cho, Nishi-Sonogi-gun, Nagasaki 851-2195, Japan
| | - T. Yaguchi
- Medical Mycology Research Center, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8673, Japan
| | - Y. Horie
- Medical Mycology Research Center, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8673, Japan
| | - A. Nováková
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - J.C. Frisvad
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - J.J. Talbot
- Sydney School of Veterinary Science, Faculty of Science, and Marie Bashir Institute of Infectious Diseases & Biosecurity, University of Sydney, Camperdown, NSW, Australia
| | - M. Kolařík
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology of the CAS, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
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Yu U, Sato K, Morita T, Mori M, Shimizu C, Horie Y, Hirakawa M, Nakajima T, Tsuneto S, Muto M. Current status of the integration of oncology and palliative care in Japan: A nationwide survey. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy295.006] [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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18
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Yu U, Sato K, Morita T, Mori M, Shimizu C, Horie Y, Hirakawa M, Nakajima T, Tsuneto S, Muto M. Perspectives and attitudes towards the integration of oncology and palliative care in Japan: A nationwide survey. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy295.009] [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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Masuishi T, Suzuki T, Sukawa Y, Imamura C, Satake H, Kumekawa Y, Funakoshi S, Kotaka M, Horie Y, Kawai S, Okuda H, Terazawa T, Kondoh C, Kato K, Yoshimura K, Ishikawa H, Hamamoto Y, Boku N, Kanai T, Takaishi H. Prospective evaluation of regorafenib dose escalation strategy with low starting dose in patients with colorectal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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20
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Mizukami T, Sunakawa Y, Arai H, Chosokabe M, Doi A, Horie Y, Hirakawa M, Saji O, Naruki S, Izawa N, Ogura T, Tsuda T, Enomoto T, Mikami S, Fujino T, Otsubo T, Nakajima T. Dynamic change of immune-related gene expression status during chemoradiotherapy in locally advanced esophageal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy303.024] [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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21
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Mizukami T, Sakai K, Naruki S, Taniyama T, Horie Y, Izawa N, Tsuda T, Fujino T, Boku N, Yasuda H, Fukunaga T, Nakajima TE, Nishio K. Identification of a FGFR3-TACC3 fusion in esophageal cancer. Ann Oncol 2018; 28:437-438. [PMID: 27771611 DOI: 10.1093/annonc/mdw550] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T Mizukami
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - K Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - S Naruki
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - T Taniyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - Y Horie
- Department of Gastroenterological and General Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - N Izawa
- Department of Gastroenterological and General Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - T Tsuda
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - T Fujino
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - N Boku
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - H Yasuda
- Internal Medicine 1, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - T Fukunaga
- Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Japan
| | - T Eguchi Nakajima
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - K Nishio
- Department of Internal Medicine, Matsui Hospital, Tokyo, Japan
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22
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Yamada T, Kito Y, Satake H, Taniguchi H, Horie Y, Esaki T, Denda T, Mori K, Yamazaki K. Update analysis of phase Ib study of FOLFOXIRI plus ramucirumab as first-line therapy for patients with metastatic colorectal cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx659.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Furui E, Itabashi R, Yazawa Y, Kubo M, Horie Y. The novel ultrasound doppler machine for microembolus detection from the cervical arteries. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3632] [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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Taniguchi H, Kito Y, Satake H, Horie Y, Yamada T, Esaki T, Denda T, Mori K, Yamazaki K. Safety analysis of phase Ib study of FOLFOXIRI plus ramucirumab as first-line therapy for patients with metastatic colorectal cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Kuwayama N, Kubo M, Nisihjima M, Horie Y, Endo S, Takaku A. Treatment of Intracranial (Dural) Arteriovenous Fistulas in Unusual Locations. Interv Neuroradiol 2016; 5 Suppl 1:115-20. [DOI: 10.1177/15910199990050s121] [Citation(s) in RCA: 6] [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] [Received: 09/20/1999] [Accepted: 09/30/1999] [Indexed: 11/17/2022] Open
Abstract
We evaluated retrospectively the treatment modalities and clinical outcome of 14 patients with intracranial dural arteriovenous fistula (AVF) involving cortical veins and dural sinuses except the cavernous and lateral sinuses. The location of arteriovenous shunt was the confluence of the sinuses and superior sagittal sinus (in 2 patients), superior petrosal sinus (1), marginal sinus (1), parasigmoid sinus (1), cortical vein at the anterior fossa (2), cortical vein of the parietal lobe (2), petrosal vein (2), and the cortical vein around the craniocervical junction (3). Of 12 patients who underwent endovascular and/or surgical treatment, five patients were treated only with microsurgery, six only with endovascular therapy, and one with combined surgical and endovascular procedure. Angioanatomical result was complete occlusion of the lesion in all the cases treated with surgery, and 80 to 100% occlusion in cases with endovascular treatment. Clinical outcome was GR in nine patients, MD in two, SD in one, VS in one, and D in one. The natural history of the lesion at each location and angioanatomical feature including the hemodynamic condition in each case should be precisely evaluated to select endovascular, surgical, or a combined procedure for the management of these unusual types of intracranial dural AVF.
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Horie Y, Mori K, Kyomori C, Izawa N, Taniyama T, Hirakawa M, Ogura T, Tsuda T, Nakajima T, Boku N. 1504 Impact of worsening in patient reported symptomatic adverse events (AEs) on deterioration of daily assessed quality of life(QOL) in cancer patients receiving initial chemotherapy; prospective exploratory study. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30595-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Osaki Y, Kanda H, Higuchi S, Matsumoto H, Yuzuriha T, Horie Y, Kimura M, Yoshimoto H. SY08-1 * OVERLAPPING OF DIFFERENT ADDICTIONS INCLUDING ALCOHOL, TOBACCO, INTERNET AND GAMBLING. Alcohol Alcohol 2014. [DOI: 10.1093/alcalc/agu052.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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28
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Araki E, Kawamori R, Inagaki N, Watada H, Hayashi N, Horie Y, Sarashina A, Thiemann S, von Eynatten M, Dugi K, Woerle HJ. Long-term safety of linagliptin monotherapy in Japanese patients with type 2 diabetes. Diabetes Obes Metab 2013; 15:364-71. [PMID: 23163910 DOI: 10.1111/dom.12039] [Citation(s) in RCA: 22] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 09/11/2012] [Accepted: 11/12/2012] [Indexed: 12/22/2022]
Abstract
AIMS In a phase III study conducted among Japanese patients with type 2 diabetes mellitus (T2DM), linagliptin 5 and 10 mg showed clinically meaningful improvements in glycaemic parameters after 12 and 26 weeks compared with placebo and voglibose, respectively. This extension study assessed long-term tolerability of linagliptin over 52 weeks. METHODS Japanese patients with T2DM who completed either phase of a 12-week/26-week study comparing linagliptin monotherapy with placebo or voglibose were eligible to enrol. In the extension study, the comparator groups switched to linagliptin 5 or 10 mg, while the linagliptin groups maintained dosage. RESULTS In all, 540 patients received at least one dose of linagliptin 5 or 10 mg and 494 completed the extension. Long-term treatment with linagliptin was well tolerated; adverse events (AEs) of special interest and serious AEs occurred in small percentages of patients. Drug-related AEs occurred in 10.2 and 10.6% of patients in the linagliptin 5- and 10-mg groups, respectively, and discontinuations due to drug-related AEs occurred in 1.1 and 0.7%, respectively. Only one (0.4%) patient in each dose group experienced investigator-defined hypoglycaemia during the treatment period (both events were non-severe). Body weight was not clinically altered in either group. The glycated haemoglobin A1c profiles over time were similar with linagliptin 5 and 10 mg. CONCLUSIONS These findings provide evidence for the safety and tolerability of oral linagliptin at either 5 or 10 mg for up to 52 weeks for the treatment of Japanese patients with T2DM, without clinically relevant increase in the risk of hypoglycaemia or weight gain.
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Affiliation(s)
- E Araki
- Department of Metabolic Medicine, Kumamoto University Graduate School of Medicine, Kumamoto, Japan
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29
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Ohmura T, Tsunenari I, Seidler R, Chachin M, Hayashi T, Konomi A, Matsumaru T, Sumida T, Hayashi N, Horie Y. Renoprotective effects of telmisartan on renal injury in obese Zucker rats. Acta Diabetol 2012; 49 Suppl 1:S15-24. [PMID: 18008027 DOI: 10.1007/s00592-007-0016-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2007] [Accepted: 08/03/2007] [Indexed: 01/13/2023]
Abstract
The purpose of the present study was to investigate the renoprotective effect of telmisartan, an angiotensin II receptor antagonist, on the early stages of diabetic nephropathy in obese Zucker rats, which is a type 2-related diabetes mellitus model. Telmisartan 1, 3 or 10 mg/kg/day was orally administered to 7-week-old rats that demonstrated glucose tolerance without albuminuria or proteinuria, for 24 consecutive weeks (Experiment A). In another experiment (Experiment B), oral administration of telmisartan 10 mg/kg/day was initiated at the age of 16 weeks after the rats demonstrated marked proteinuria, and continued for 24 weeks. Telmisartan inhibited the increase in proteinuria and albuminuria in a dose-dependent manner, and the inhibition for all telmisartan groups was statistically significant by the completion of administration (Experiment A). Telmisartan also displayed similar inhibitory effects on proteinuria and albuminuria in Experiment B. Histologically, telmisartan [3 and 10 mg/kg/day] was associated with a significant decrease in the progression of glomerulosclerosis, and significantly improved interstitial cell infiltration, interstitial fibrosis and dilation and atrophy of renal tubules. Furthermore, telmisartan treatment was associated with a tendency towards normalized plasma lipids (total cholesterol and triglyceride). Our results suggest that telmisartan has a definite renoprotective effect against renal injury in type II diabetic nephropathy.
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Affiliation(s)
- T Ohmura
- Project Coordination Group, Kawanishi Pharma Research Institute, Nippon Boehringer Ingelheim Co, Ltd, Yato, 3-10-1 Kawanishi, Hyogo, Japan.
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30
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Barua A, Horie Y, Zhou M. Microstructural level response of HMX–Estane polymer-bonded explosive under effects of transient stress waves. Proc Math Phys Eng Sci 2012. [DOI: 10.1098/rspa.2012.0279] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The effect of transient stress waves on the microstructure of HMX–Estane, a polymer-bonded explosive (PBX), is studied. Calculations carried out concern microstructures with HMX grain sizes on the order of 200 μm and grain volume fractions in the range of 0.50–0.82. The microstructural samples analysed have an aspect ratio of 5:1 (15×3 mm), allowing the transient wave propagation process resulting from normal impact to be resolved. Boundary loading is effected by the imposition of impact face velocities of 50–200 m s
−1
. Different levels of grain–binder interface strength are considered. The analysis uses a recently developed cohesive finite element framework that accounts for coupled thermal–mechanical processes involving deformation, heat generation and conduction, failure in the forms of microcracks in both bulk constituents and along grain/matrix interfaces, and frictional heating along crack faces. Results show that the overall wave speed through the microstructures depends on both the grain volume fraction and interface bonding strength between the constituents and that the distance traversed by the stress wave before the initiation of frictional dissipation is independent of the grain volume fraction but increases with impact velocity. Energy dissipated per unit volume owing to fracture is highest near the impact surface and deceases to zero at the stress wavefront. On the other hand, the peak temperature rises are noted to occur approximately 2–3 mm from the impact surface. Scaling laws are developed for the maximum dissipation rate and the highest temperature rise as functions of impact velocity, grain volume fraction and grain–binder interfacial bonding strength.
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Affiliation(s)
- A. Barua
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405, USA
| | - Y. Horie
- Air Force Research Laboratory, Munitions Directorate, 2306 Perimeter Road, Eglin Air Force Base, Valparaiso, FL 32542, USA
| | - M. Zhou
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405, USA
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Kawamori R, Inagaki N, Araki E, Watada H, Hayashi N, Horie Y, Sarashina A, Gong Y, von Eynatten M, Woerle HJ, Dugi KA. Linagliptin monotherapy provides superior glycaemic control versus placebo or voglibose with comparable safety in Japanese patients with type 2 diabetes: a randomized, placebo and active comparator-controlled, double-blind study. Diabetes Obes Metab 2012; 14:348-57. [PMID: 22145698 DOI: 10.1111/j.1463-1326.2011.01545.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
AIMS To evaluate the efficacy and safety of linagliptin 5 and 10 mg vs. placebo and voglibose in Japanese patients with type 2 diabetes mellitus (T2DM). METHODS This study enrolled patients with inadequately controlled T2DM who were previously treated with one or two oral antidiabetics or were drug naÏve. After a 2 to 4-week washout and placebo run-in, 561 patients were randomized (2 : 2 : 2 : 1) to double-blind treatment with linagliptin 5 or 10 mg qd, voglibose 0.2 mg tid or placebo. The primary endpoint was the change from baseline in haemoglobin A1c (HbA1c) with linagliptin vs. placebo after 12 weeks and vs. voglibose after 26 weeks. RESULTS Baseline characteristics were well balanced across treatment groups (overall mean HbA1c was 8.01%). The adjusted mean (95% confidence interval) treatment differences at week 12 were -0.87% (-1.04, -0.70; p < 0.0001) and -0.88% (-1.05, -0.71; p < 0.0001) for linagliptin 5 and 10 mg vs. placebo and at week 26 were -0.32% (-0.49, -0.15; p = 0.0003) and -0.39% (-0.56, -0.21; p < 0.0001) for linagliptin 5 and 10 mg vs. voglibose. At week 12, mean HbA1c was 7.58, 7.48 and 8.34% in patients receiving linagliptin 5 mg, linagliptin 10 mg and placebo, respectively. At week 26, mean HbA1c was 7.63% with linagliptin 5 mg, 7.50% with linagliptin 10 mg and 7.91% with voglibose. Drug-related adverse event rates were comparable across treatment groups over 12 weeks (9.4% linagliptin 5 mg, 8.8% linagliptin 10 mg and 10.0% placebo) and 26 weeks (11.3% linagliptin 5 mg, 10.6% linagliptin 10 mg and 18.5% voglibose). There were no documented cases of hypoglycaemia. CONCLUSIONS Linagliptin showed superior glucose-lowering efficacy and comparable safety and tolerability to both placebo and voglibose in Japanese patients with T2DM.
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Affiliation(s)
- R Kawamori
- Sportology Centre, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Abstract
An association between Birt-Hogg-Dubé syndrome (BHDS) and colon cancer remains conjectural, but herein we describe a case who may illustrate a significant link between them. The 60-year-old woman was diagnosed at 28 years of age with colon carcinoma and familial adenomatous polyposis (FAP). She also had repeated pneumothoraces, and was diagnosed with BHDS following the finding of pneumothorax in her son. We confirmed the presence of germline mutations in both her folliculin (FLCN) and adenomatous polyposis coli (APC) genes. The family pedigree suggested that a de novo FLCN mutation might have contributed to the development of colon carcinoma at a younger age than her family members.
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Affiliation(s)
- Takeru Kashiwada
- Department of Respiratory Medicine, Tokyo Kosei Nenkin Hospital, Japan.
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Mizuno Y, Shimizu H, Yamashita M, Horie Y, Mizō A. [A case of clopidogrel-induced eosinophilic pneumonia]. Nihon Kokyuki Gakkai Zasshi 2011; 49:838-842. [PMID: 22171488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
An 83-year-old man had been prescribed clopidogrel for pontine infarction since 8 months previously, and had had a cough for the last 2 weeks of this period. Laboratory examinations on admission showed a marked increase in eosinophils and elevated serum immunoglobulin E levels. Chest radiography showed bilateral ground-glass opacities, mild reticulation, and interlobar pleural effusion in the minor fissure. After clopidogrel was discontinued his symptoms resolved, and his laboratory tests showed normal results. Bronchoalveolar lavage also showed an increase in eosinophils, and transbronchial biopsy revealed infiltration of eosinophils in the subepithelium of the bronchial mucosa. On the basis of these findings, we diagnosed eosinophilic pneumonia induced by clopidogrel. Reports on cases of lung diseases caused by anti-platelet drugs are rare. To the best of our knowledge, this case is the first report on clopidogrel-induced eosinophilic pneumonia.
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Affiliation(s)
- Yuko Mizuno
- Department of Respiratory Medicine, Tokyo Kosei Nenkin Hospital
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Hoshika Y, Horie Y, Yamamoto Y, Haga T, Mizoo A. [A case of negative pressure pulmonary hemorrhage associated with upper-airway obstruction due to a giant vocal cord nodule]. Nihon Kokyuki Gakkai Zasshi 2011; 49:733-738. [PMID: 22117309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A 68-year-old woman was brought by ambulance because of sudden choking sensation and dyspnea after coughing. A physical examination showed hoarseness and blood-stained sputum. A chest computed tomography (CT) showed bilateral diffusely-distributed ground-glass opacity. A bronchoscopy examination revealed a large nodule on the left larynx and bloody bronchoalveolar lavage fluid. We diagnosed negative pressure pulmonary hemorrhage (NPPH) based on suspected upper-airway obstruction, but it resolved without further treatment. We found no other causes. We report a rare case of NPPH due to a giant vocal cord nodule.
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Affiliation(s)
- Yoshito Hoshika
- Department of Respiratory Medicine, Tokyo Kouseinenkin Hospital
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James RD, Paisley DL, Gruss KA, Parthasarthi S, Tittmann BR, Horie Y, Davis RF. Adhesion Evaluation of TiN and (Ti, Al)N Coatings on Titanium 6Al-4V. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-410-377] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTTo assess the adhesion of nitride coatings on metals, titanium 6% aluminum 4% vanadium substrates were coated with titanium nitride (TiN) using both cathodic arc and electron beam evaporation. Titanium aluminum nitride ((Ti, Al)N) was also deposited using cathodic arc evaporation. The interfaces of the coated samples were loaded in tension using a high speed shock wave which caused spallation either at the interface, in the coating or in the metal. Scanning acoustic microscopy analysis of the spalled samples detected delaminations at the interface in the samples deposited by cathodic arc evaporation. DYNA2D modeling of plate impact spallation experiments revealed the tensile adhesion strength for TiN deposited by both techniques was ≈ 2.0 GPa. The tensile adhesion strength for (Ti, Al)N was less than 1.5 GPa.
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Shibata T, Horie Y, Hayashi N, Endo S, Musha T, Matsuzaki H. P35-1 Application of neuronal activity topography to vascular cognitive impairment with carotid artery stenosis. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61271-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Kashiwada T, Shimizu H, Arai Y, Horie Y, Mizoo A, Takizawa S. [A case of anaphylactic reaction after pleurodesis with OK-432]. Nihon Kokyuki Gakkai Zasshi 2009; 47:965-968. [PMID: 19882924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A 60-year-old woman had received adjuvant chemotherapy after abdominal hysterectomy for clear cell carcinoma of the endometrium. She had no history of allergy. She was admitted to our hospital because of massive pleural effusion. She underwent drainage of left-side malignant pleural effusion followed by chemical pleurodesis with OK-432 via a chest tube. Ten minutes after administration of OK-432 to the thoracic cavity, she complained of dyspnea and showed general flushing. Since the clinical course suggested drug-induced anaphylactic reaction, she was immediately treated with an adrenaline subcutaneous injection and methylprednisolone sodium succinate intravenous injection. However, the respiratory insufficiency progressively deteriorated and mechanical ventilation was needed for the next 3 days. This is the first published case of anaphylactic reaction to OK-432 pleurodesis. In Japan, OK-432 is a key drug used for pleurodesis and we should consider possible serious adverse reactions include anaphylactic reaction.
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Kanazu S, Horie Y, Narukawa M, Nonaka K, Taniguchi T, Arjona Ferreira JC, Takeuchi M. Predicting steady-state HbA1c responses to sitagliptin in patients with type 2 diabetes mellitus. Diabetes Obes Metab 2009; 11:813-8. [PMID: 19476471 DOI: 10.1111/j.1463-1326.2009.01058.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS To develop predictive formulas using short-term changes in glycaemic parameters [haemoglobin A1c (HbA1c) and fasting plasma glucose (FPG)] with sitagliptin, a highly selective dipeptidyl peptidase-4 inhibitor, to assess longer term steady-state changes in HbA1c. METHODS Results from two, 12-week, double-blind studies of sitagliptin in Japanese patients with type 2 diabetes mellitus receiving once-daily sitagliptin 100 mg were used to construct linear models to develop predictive formulas based on study 1 (S1) and to validate them using study 2 (S2). HbA1c and FPG were the primary and the key secondary end-point for both studies and were both used to develop predictive formulas. RESULTS The predictive formulas using HbA1c+/-FPG results (slope of change) from week 0 to week 4 in S1 showed high correlations between fitted and observed week 12 HbA1c: for HbA1c alone R2=0.76, for HbA1c+FPG R2=0.89. When using the sitagliptin 100 mg group of S2 data set to assess the validity of the predictive formulas, high correlations for HbA1c alone (R2=0.76) and for HbA1c+FPG (R2=0.77) were also observed. Data using a lower dose (25 mg once daily) of sitagliptin also demonstrated similar results. CONCLUSIONS The early responses (over 4 weeks) in HbA1c and FPG with sitagliptin can be used to accurately predict later responses (at week 12) in HbA1c in Japanese patients with type 2 diabetes mellitus. Additional studies applying this approach to other agents with diverse mechanisms are important.
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Affiliation(s)
- S Kanazu
- Banyu Pharmaceutical Co., Ltd., Tokyo, Japan.
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Horie Y, Meguro A, Ota M, Kitaichi N, Katsuyama Y, Takemoto Y, Namba K, Yoshida K, Song YW, Park KS, Lee EB, Inoko H, Mizuki N, Ohno S. Association of TLR4 polymorphisms with Behcet's disease in a Korean population. Rheumatology (Oxford) 2009; 48:638-42. [DOI: 10.1093/rheumatology/kep077] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Haga T, Hoshika Y, Horie Y, Mizo A. [Case of rapidly progressed pulmonary metastases of superficial bladder cancer]. Nihon Kokyuki Gakkai Zasshi 2008; 46:501-504. [PMID: 18592999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The patient was a 95-year-old-man admitted to the urological section of our hospital because of hematuria. Transurethral resection of the bladder tumor (TUR-Bt) was performed. This tumor was diagnosed pathologically as bladder cancer (transitional cell carcinoma Grade 3 pT1). After 8 months, local reccurence was seen and TUR-Bt was performed. (pTa). After 1 month, his chest radiograph and computed tomogram showed a mass shadow in the left upper lung field. Cystoscopy did not reveal a local reccurence. The patient's condition worsened, and he died of respiratory failure after about 1 month. At autopsy, pathologic studies of the lung tumor revealed transitional cell carcinoma, and local recurrence was not seen. We report a rare case of pulmonary metastases from superficial bladder cancer without local reccurence.
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Tomita K, Tamiya G, Ando S, Ohsumi K, Chiyo T, Mizutani A, Kitamura N, Toda K, Kaneko T, Horie Y, Han JY, Kato S, Shimoda M, Oike Y, Tomizawa M, Makino S, Ohkura T, Saito H, Kumagai N, Nagata H, Ishii H, Hibi T. Tumour necrosis factor alpha signalling through activation of Kupffer cells plays an essential role in liver fibrosis of non-alcoholic steatohepatitis in mice. Gut 2006; 55:415-24. [PMID: 16174657 PMCID: PMC1856073 DOI: 10.1136/gut.2005.071118] [Citation(s) in RCA: 323] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND While tumour necrosis factor alpha (TNF-alpha) appears to be associated with the development of non-alcoholic steatohepatitis (NASH), its precise role in the pathogenesis of NASH is not well understood. METHODS Male mice deficient in both TNF receptors 1 (TNFR1) and 2 (TNFR2) (TNFRDKO mice) and wild-type mice were fed a methionine and choline deficient (MCD) diet or a control diet for eight weeks, maintaining isoenergetic intake. RESULTS MCD dietary feeding of TNFRDKO mice for eight weeks resulted in attenuated liver steatosis and fibrosis compared with control wild-type mice. In the liver, the number of activated hepatic Kupffer cells recruited was significantly decreased in TNFRDKO mice after MCD dietary feeding. In addition, hepatic induction of TNF-alpha, vascular cell adhesion molecule 1, and intracellular adhesion molecule 1 was significantly suppressed in TNFRDKO mice. While in control animals MCD dietary feeding dramatically increased mRNA expression of tissue inhibitor of metalloproteinase 1 (TIMP-1) in both whole liver and hepatic stellate cells, concomitant with enhanced activation of hepatic stellate cells, both factors were significantly lower in TNFRDKO mice. In primary cultures, TNF-alpha administration enhanced TIMP-1 mRNA expression in activated hepatic stellate cells and suppressed apoptotic induction in activated hepatic stellate cells. Inhibition of TNF induced TIMP-1 upregulation by TIMP-1 specific siRNA reversed the apoptotic suppression seen in hepatic stellate cells. CONCLUSIONS Enhancement of the TNF-alpha/TNFR mediated signalling pathway via activation of Kupffer cells in an autocrine or paracrine manner may be critically involved in the pathogenesis of liver fibrosis in this NASH animal model.
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MESH Headings
- Animals
- Apoptosis
- Cell Adhesion Molecules/biosynthesis
- Choline Deficiency/complications
- Fatty Liver/complications
- Fatty Liver/metabolism
- Fatty Liver/pathology
- Gene Expression Regulation
- Kupffer Cells/metabolism
- Liver Cirrhosis, Experimental/etiology
- Liver Cirrhosis, Experimental/metabolism
- Liver Cirrhosis, Experimental/pathology
- Male
- Methionine/deficiency
- Mice
- Mice, Knockout
- Mitochondria, Liver/physiology
- Mutation
- RNA, Messenger/genetics
- Receptors, Tumor Necrosis Factor, Type I/deficiency
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Receptors, Tumor Necrosis Factor, Type I/physiology
- Receptors, Tumor Necrosis Factor, Type II/deficiency
- Receptors, Tumor Necrosis Factor, Type II/genetics
- Receptors, Tumor Necrosis Factor, Type II/physiology
- Reverse Transcriptase Polymerase Chain Reaction/methods
- Signal Transduction
- Tissue Inhibitor of Metalloproteinase-1/biosynthesis
- Tissue Inhibitor of Metalloproteinase-1/genetics
- Tumor Necrosis Factor-alpha/biosynthesis
- Tumor Necrosis Factor-alpha/physiology
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Affiliation(s)
- K Tomita
- Department of Internal Medicine, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
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Hamaoka T, Tatsumi K, Saito Y, Arai Y, Horie Y, Masuyama S, Tanabe N, Takiguchi Y, Ikehira H, Obata T, Sasaki Y, Tanada S, Kuriyama T. Metabolic activity in skeletal muscles of patients with non-hypoxaemic chronic obstructive pulmonary disease studied by 31P-magnetic resonance spectroscopy. Respirology 2006; 10:164-70. [PMID: 15823180 DOI: 10.1111/j.1440-1843.2005.00696.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE An alteration of high energy phosphate metabolism in muscles may contribute to exercise intolerance. The objective of this study was to clarify the changes in high energy phosphate metabolites in muscles during exercise in patients with non-hypoxaemic chronic obstructive pulmonary disease (COPD), which influences the impairment of muscle metabolism. METHODOLOGY Calf muscle energy metabolism was studied in eight stable non-hypoxaemic COPD patients and eight control subjects, using 31P-magnetic resonance spectroscopy (MRS). MRS spectra were acquired at rest, during exercise at two levels of intensity, and during recovery. The control subjects exercised under both normoxic and hypoxic conditions. The intensity of exercise was standardized by the maximal isometric voluntary contraction (MVC) of the calf muscle and the cross-sectional area (CSA) of calf muscle. RESULTS MVC and CSA were lower in COPD patients. No significant differences in intracellular pH, inorganic phosphate/phosphocreatine ratio or percentage recovery in inorganic phosphate/phosphocreatine ratio were observed between the two groups in muscles at rest, during exercise or during recovery. CONCLUSIONS Muscle metabolites, during exercise standardized by muscle CSA and MVC, did not differ between non-hypoxaemic COPD patients and control subjects. MVC, CSA or both, are assumed to be closely related to muscle metabolism, as no difference in high energy phosphate metabolites was observed for COPD patients compared to control subjects when the load was standardized for MVC and CSA. This suggests that high energy metabolites are consumed to a similar extent in the same muscle volume in non-hypoxaemic COPD patients and control subjects.
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Affiliation(s)
- Tomoko Hamaoka
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
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46
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Abstract
Isolates representing newly described Neosartorya species, and isolates with abnormal morphologies from Aspergillus section Fumigati were examined by phylogenetic analysis of sequences of part of their beta-tubulin gene. Phylogenetic analyses supported the earlier suggestions that heterothallism is a derived character, and that sexuality was lost several times during the evolution of Aspergillus section Fumigati. The heterothallic N. fennelliae and N. udagawae strains were found to be closely related to the homothallic Neosartorya sp. NRRL 4179 and N. aureola, respectively. Aspergillus sp. FRR 1266, which was earlier described as a variant of A. fumigatus, was found to be closely related to A. viridinutans. Another abnormal asexual isolate was found to be closely related to A. fumigatus and N. fischeri. Phylogenetic relationships among newly described Neosartorya species and other taxa were successfully established based on phylogenetic analysis of beta-tubulin sequences.
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Affiliation(s)
- J Varga
- Department of Microbiology, Attila József University, P.O. Box 533, H-6701 Szeged, Hungary.
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47
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Iizuka M, Itou H, Konno S, Chihara J, Tobita M, Oyamada H, Toyoshima I, Sasaki K, Sato A, Horie Y, Watanabe S. Elemental diet modulates the growth of Clostridium difficile in the gut flora. Aliment Pharmacol Ther 2004; 20 Suppl 1:151-7. [PMID: 15298621 DOI: 10.1111/j.1365-2036.2004.01969.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Tube feeding is regarded as a risk factor for Clostridium difficile-associated diarrhoea. Recently, we reported that C. difficile toxin was frequently found in patients receiving an elemental diet. The present study was conducted to clarify whether elemental diets are associated with the growth of C. difficile in the gut flora. METHODS C. difficile was cultured for 72 h in various concentrations of elemental diet containing 3% thioglycollate, and the growth rate or activity of C. difficile was evaluated by Gram stain or by measuring optical density at 560 nm. Faecal samples from 10 healthy adults were cultured in elemental diet + 3% thioglycollate. RNA was extracted from faeces with glass powder, which can eliminate PCR inhibitors, and mRNA of C. difficile toxin B was measured by reverse transcription PCR. RESULTS Maximum OD560 value during culture in thioglycollate-containing elemental diet was 2.4 times higher than that in thioglycollate alone (P = 0.0163). Viability of C. difficile was decreased in thioglycollate but not in thioglycollate-containing elemental diet. Toxin B mRNA was detected in five faecal samples (50%) before culture and in all samples after culture. CONCLUSIONS Our results suggest that an elemental diet can modulate the growth of C. difficile in the gut flora.
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Affiliation(s)
- M Iizuka
- Department of Internal Medicine, Akita University School of Medicine, Akita, Japan
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48
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Murata K, Ishikawa S, Horie Y, Kominami S, Tomita Y, Oode Y, Toyoda F, Ootsuki Y, Shimizu S, Kobayashi H, Nakamura H. [A case of multiple myeloma presenting as giant chest wall tumors with calcification]. Nihon Kokyuki Gakkai Zasshi 2003; 41:846-50. [PMID: 14661560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
A 60-year-old man was admitted for investigation of an abnormality detected in chest radiography: a giant tumor with calcification in the right middle lung field. A computed tomography (CT) scan revealed multiple tumors with calcification on the posterior chest wall. Histological analysis of the tumor specimen obtained by surgical biopsy demonstrated an increasing number of plasma cells accompanied with the deposition of amyloid. A bone marrow biopsy contained over 50% of plasma cells. We therefore diagnosed these tumors as multiple myeloma. It has been reported that multiple myeloma is usually characterized by osteolytic lesions; osteosclerotic changes are rare. Multiple myeloma should be taken into account as one of the causes of a chest wall tumor even if it is diffusely calcified.
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Affiliation(s)
- Kengo Murata
- Department of Respiratory Medicine, Seirei Hamamatsu General Hospital
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49
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Ogasawara T, Murata K, Iesato K, Kominami S, Tomita K, Horie Y, Yano A, Nakamura H. [Eosinophilic pleural effusion by dirofilariasis]. Nihon Kokyuki Gakkai Zasshi 2003; 41:347-50. [PMID: 12822426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
A 44-year-old man visited our hospital because of right chest pain. Pleural effusion in the right lung was detected on a chest radiograph. A chest CT scan demonstrated no abnormal lesions in either lung field, but passive atelectasis due to the pleural effusion was present. Since many eosinophils were found in the exudative pleural effusion, a parasitic infection was suspected. An enzyme-linked immunosorbent assay test led to a diagnosis of eosinophilic pleural effusion by dirofilariasis. Pleural effusion disappeared spontaneously and the level of anti-Dirofilaria immitis antibody decreased. Continued careful observation is necessary in such cases.
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Affiliation(s)
- Takashi Ogasawara
- Division of Respiratory Disease, Seirei Hamamatsu Hospital, 2-12-12 Sumiyoshi, Hamamatsu, Shizuoka 430-8558, Japan
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50
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Abstract
Class II major histocompatilibity complex (MHC)-expressing cells are usually distributed in dental pulp, and it was postulated that the colony-stimulating factor (CSF) derived from dental pulp fibroblasts contributes to the migration of class II MHC-expressing cells into pulp tissue. This study aimed to investigate the CSF production of human dental pulp fibroblasts. In pulp tissue sections, granulocyte (G)-CSF was detected from normal teeth, while G-CSF, macrophage (M)-CSF, and granulocyte-macrophage (GM)-CSF were detected from teeth with dentinal caries. In cultured dental pulp fibroblasts, G-CSF was detected by immunostaining, immunoprecipitation, and ELISA, and mRNAs of G-CSF, M-CSF, and GM-CSF were detected by RT-PCR. The dental pulp fibroblasts cultured with TNF-alpha were found to increase the G-CSF expression and to produce M-CSF and GM-CSF. These findings suggest that dental pulp fibroblasts usually produce G-CSF. In the presence of TNF-alpha, dental pulp fibroblast express M-CSF and GM-CSF.
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Affiliation(s)
- Y Sawa
- Department of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University, N13 W7, Kita-ku, Sapporo 060-8586, Japan.
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