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Higashimoto Y, Hattori F, Kawamura Y, Kozawa K, Hamano A, Kato M, Kato S, Hosokawa A, Enya Y, Ihira M, Yoshikawa T. Analysis of the reliability of rapid diagnostic tests for varicella, including breakthrough cases. J Med Virol 2023; 95:e28569. [PMID: 36762573 DOI: 10.1002/jmv.28569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/28/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
In the era of universal varicella vaccination, diagnosis of varicella is challenging, especially for breakthrough cases. We sought to clarify the reliability of direct varicella-zoster virus (VZV) loop-mediated isothermal amplification (LAMP) and DermaQuick® VZV using the immunochromatography technique as rapid diagnostic tests for varicella. In addition, the usefulness of saliva as a sample type for direct LAMP was investigated. Among the 46 enrolled patients with suspected VZV infection, 31 patients (67.3%) were positive for the nucleic acid test based on real-time PCR from skin swab samples. Direct LAMP of skin swabs was positive in 29 (63.0%) of 46 patients. DermaQuick® VZV was positive in 25 (54.3%) of 46 patients. VZV DNA was detected in only 48.4% of oral swabs with the direct LAMP method. With real-time polymerase chain reaction (PCR) as the standard for diagnosing varicella, the sensitivity and specificity of DermaQuick® VZV were 80.7% and 100%, respectively. The sensitivity and specificity of direct LAMP from skin swabs were 93.6% and 100%, respectively. The sensitivity and specificity of real-time PCR for DNA extracted from oral swabs were 74.2% and 93.3%, respectively. Thus, oral swab samples are not suitable for breakthrough varicella diagnosis. Although DermaQuick® VZV is considered the most convenient point-of-care test for varicella, its sensitivity and specificity were lower than those of direct VZV LAMP.
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Affiliation(s)
- Yuki Higashimoto
- Department of Cellular and Molecular Biology, Fujita Health University School of Medical Sciences, Toyoake, Aichi, Japan
| | - Fumihiko Hattori
- Department of Pediatrics, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Yoshiki Kawamura
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Kei Kozawa
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Aoi Hamano
- Department of Cellular and Molecular Biology, Fujita Health University School of Medical Sciences, Toyoake, Aichi, Japan
| | - Mizuki Kato
- Department of Cellular and Molecular Biology, Fujita Health University School of Medical Sciences, Toyoake, Aichi, Japan
| | - Sayaka Kato
- Department of Cellular and Molecular Biology, Fujita Health University School of Medical Sciences, Toyoake, Aichi, Japan
| | - Asuka Hosokawa
- Department of Cellular and Molecular Biology, Fujita Health University School of Medical Sciences, Toyoake, Aichi, Japan
| | - Yasuko Enya
- Department of Clinical Science for Biological Monitoring, Fujita Health University School of Medical Sciences, Toyoake, Aichi, Japan
| | - Masaru Ihira
- Department of Clinical Science for Biological Monitoring, Fujita Health University School of Medical Sciences, Toyoake, Aichi, Japan
| | - Tetsushi Yoshikawa
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
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Imajima T, Shirakawa T, Shimokawa M, Otsuka T, Shibuki T, Nakazawa J, Arima S, Miwa K, Okabe Y, Koga F, Kubotsu Y, Ueda Y, Hosokawa A, Takeshita S, Shimokawa H, Komori A, Kawahira M, Oda H, Sakai K, Arita S, Mizuta T, Mitsugi K. P-113 A multicenter observational study of liposomal irinotecan and fluorouracil/leucovorin in patients with unresectable or recurrent pancreatic cancer (NAPOLEON-2): Retrospective part. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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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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Nakamura M, Ishiguro A, Dazai M, Kawamoto Y, Yuki S, Sogabe S, Hosokawa A, Sawada K, Muto O, Umemoto K, Izawa N, Nakashima K, Yagisawa M, Kajiura S, Mitsuhashi Y, Ando T, Sunakawa Y, Kikuchi Y, Yamanaka T, Komatsu Y. 499P The safety and efficacy of edoxaban for the cancer-associated asymptomatic venous thromboembolism in Japanese gastrointestinal cancer patients receiving chemotherapy (ExCAVE study). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Morizane C, Okusaka T, Mizusawa J, Katayama H, Ueno M, Ikeda M, Ozaka M, Okano N, Sugimori K, Fukutomi A, Hara H, Mizuno N, Yanagimoto H, Wada K, Tobimatsu K, Yane K, Nakamori S, Yamaguchi H, Asagi A, Yukisawa S, Kojima Y, Kawabe K, Kawamoto Y, Sugimoto R, Iwai T, Nakamura K, Miyakawa H, Yamashita T, Hosokawa A, Ioka T, Kato N, Shioji K, Shimizu K, Nakagohri T, Kamata K, Ishii H, Furuse J. Combination gemcitabine plus S-1 versus gemcitabine plus cisplatin for advanced/recurrent biliary tract cancer: the FUGA-BT (JCOG1113) randomized phase III clinical trial. Ann Oncol 2019; 30:1950-1958. [PMID: 31566666 DOI: 10.1093/annonc/mdz402] [Citation(s) in RCA: 161] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Gemcitabine plus cisplatin (GC) is the standard treatment of advanced biliary tract cancer (BTC); however, it causes nausea, vomiting, and anorexia, and requires hydration. Gemcitabine plus S-1 (GS) reportedly has equal to, or better, efficacy and an acceptable toxicity profile. We aimed to confirm the non-inferiority of GS to GC for patients with advanced/recurrent BTC in terms of overall survival (OS). PATIENTS AND METHODS We undertook a phase III randomized trial in 33 institutions in Japan. Eligibility criteria included chemotherapy-naïve patients with recurrent or unresectable BTC, an Eastern Cooperative Oncology Group Performance Status of 0 - 1, and adequate organ function. The calculated sample size was 350 with a one-sided α of 5%, a power of 80%, and non-inferiority margin hazard ratio (HR) of 1.155. The primary end point was OS, while the secondary end points included progression-free survival (PFS), response rate (RR), adverse events (AEs), and clinically significant AEs defined as grade ≥2 fatigue, anorexia, nausea, vomiting, oral mucositis, or diarrhea. RESULTS Between May 2013 and March 2016, 354 patients were enrolled. GS was found to be non-inferior to GC [median OS: 13.4 months with GC and 15.1 months with GS, HR, 0.945; 90% confidence interval (CI), 0.78-1.15; P = 0.046 for non-inferiority]. The median PFS was 5.8 months with GC and 6.8 months with GS (HR 0.86; 95% CI 0.70-1.07). The RR was 32.4% with GC and 29.8% with GS. Both treatments were generally well-tolerated. Clinically significant AEs were observed in 35.1% of patients in the GC arm and 29.9% in the GS arm. CONCLUSIONS GS, which does not require hydration, should be considered a new, convenient standard of care option for patients with advanced/recurrent BTC. CLINICAL TRIAL NUMBER This trial has been registered with the UMIN Clinical Trials Registry (http://www.umin.ac.jp/ctr/index.htm), number UMIN000010667.
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Affiliation(s)
- C Morizane
- Department of Hepatobiliary and Pancreatic Oncology, Tokyo.
| | - T Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, Tokyo
| | - J Mizusawa
- JCOG Data Center/Operations Office, National Cancer Center Hospital, Tokyo
| | - H Katayama
- JCOG Data Center/Operations Office, National Cancer Center Hospital, Tokyo
| | - M Ueno
- Department of Gastroenterology, Hepatobiliary and Pancreatic Medical Oncology Division, Kanagawa Cancer Center, Yokohama
| | - M Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa
| | - M Ozaka
- Hepato-Biliary-Pancreatic Medicine Department, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo
| | - N Okano
- Department of Medical Oncology, Kyorin University Faculty of Medicine, Tokyo
| | - K Sugimori
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama
| | - A Fukutomi
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka
| | - H Hara
- Department of Gastroenterology, Saitama Cancer Center, Saitama
| | - N Mizuno
- Department of Gastroenterology, Aichi Cancer Center Hospital, Nagoya
| | - H Yanagimoto
- Department of Surgery, Kansai Medical University Hospital, Hirakata
| | - K Wada
- Department of Surgery, Teikyo University School of Medicine, Tokyo
| | - K Tobimatsu
- Division of Gastroenterology, Department of Internal Medicine Kobe University Graduate School of Medicine, Kobe
| | - K Yane
- Center for Gastroenterology, Teine Keijinkai Hospital, Sapporo
| | - S Nakamori
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka
| | - H Yamaguchi
- Department of Clinical Oncology, Jichi Medical University, Shimotsuke
| | - A Asagi
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama
| | - S Yukisawa
- Department of Medical Oncology, Tochigi Cancer Center, Utsunomiya
| | - Y Kojima
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo
| | - K Kawabe
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - Y Kawamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo
| | - R Sugimoto
- Department of Hepato-Biliary-Pancreatology, National Hospital Organization Kyushu Cancer Center, Fukuoka
| | - T Iwai
- Department of Gastroenterology, Kitasato University Hospital, Sagamihara
| | - K Nakamura
- Division of Gastroenterology, Chiba Cancer Center, Chiba
| | - H Miyakawa
- Department of Bilio-Pancreatology, Sapporo Kousei General Hospital, Sapporo
| | - T Yamashita
- Department of Gastroenterology, Kanazawa University, Kanazawa
| | - A Hosokawa
- Department of Gastroenterology and Hematology, University of Toyama, Faculty of Medicine, Toyama
| | - T Ioka
- Department of Cancer Survey and Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka
| | - N Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba
| | - K Shioji
- Department of Internal medicine, Niigata Cancer Center Hospital, Niigata
| | - K Shimizu
- Department of Gastroenterology, Tokyo Women's Medical University, Tokyo
| | - T Nakagohri
- Gastroenterological Surgery, Tokai University School of Medicine, Isehara
| | - K Kamata
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka
| | - H Ishii
- Clinical Research Center, Chiba Cancer Center, Chiba, Japan
| | - J Furuse
- Department of Medical Oncology, Kyorin University Faculty of Medicine, Tokyo
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Shitara K, Tabernero J, Dvorkin M, Mansoor W, Arkenau HT, Prokharau A, Alsina M, Ghidini M, Faustino C, Gorbunova V, Zhavrid E, Nishikawa K, Hosokawa A, Ganea D, Yalçın Ş, Fujitani K, Beretta G, Winkler R, Doi T, Ilson D. Overall survival results from a phase III trial of trifluridine/tipiracil (FTD/TPI) vs placebo in patients (Pts) with metastatic gastric cancer refractory to standard therapies (TAGS). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy432.027] [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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Hosokawa A, Tomida M. EFFECTS OF GROUP REMINISCENCE FOCUSING ON SEQUENTIAL LIFE REVIEW ON COGNITIVE AGING. Innov Aging 2018. [DOI: 10.1093/geroni/igy031.3455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Hosokawa
- National Center for Geriatrics and Gerontology
| | - M Tomida
- National Center for Geriatrics and Gerontology
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Nakamura M, Yagisawa M, Saiki T, Ishiguro A, Sawada K, Yuki S, Sasaki T, Ando T, Ohori H, Kotaka M, Muto O, Shindo Y, Nakashima K, Hosokawa A, Doi A, Izawa N, Sunakawa Y, Satoh A, Ono K, Komatsu Y. A feasibility study of edoxaban for the cancer-associated asymptomatic venous thromboembolism in Japanese gastrointestinal cancer patients receiving chemotherapy (ExCAVE study). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.032] [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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9
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Okuyama H, Ikeda M, Okusaka T, Furuse J, Furukawa M, Ohkawa S, Hosokawa A, Kojima Y, Yamaguchi K, Murohisa G, Shioji K, Ishii H, Mizuno N, Kojima M, Yamanaka T. A phase II study of everolimus in patients with unresectable pancreatic neuroendocrine carcinoma refractory or intolerant to platinum-containing chemotherapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy293.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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10
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Arkenau HT, Tabernero J, Shitara K, Dvorkin M, Mansoor W, Prokharau A, Alsina M, Ghidini M, Faustino C, Gorbunova V, Zhavrid E, Nishikawa K, Hosokawa A, Ganea D, Yalçın Ş, Beretta G, Winkler R, Makris L, Doi T, Ilson D. TAGS: A phase III, randomised, double-blind study of trifluridine/tipiracil (TAS-102) versus placebo in patients with refractory metastatic gastric cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy424.027] [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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11
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Hosokawa A, Yamazaki K, Matsuda C, Ueda S, Fujii H, Baba E, Okamura S, Tsuda M, Tamura T, Shinozaki K, Tsushima T, Tsuda T, Shirakawa T, Yamashita H, Morita S, Muro K. Morphologic response to chemotherapy containing bevacizumab in patients with colorectal liver metastases (CLM): A post hoc analysis of the WJOG4407G phase III study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.058] [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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Hayashi T, Matsumoto S, Hosokawa A, Yamamoto K, Nomura A, Woo E, Imano H, Kato R, Ijiri Y, Yamaguchi T, Izumi Y, Yoshiyama M, Okada Y, Asahi M. P2501Rivaroxaban combined with spironolactone attenuates cardiovascular remodeling due to hypoxia in pulmonary arterial hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- T Hayashi
- Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | - S Matsumoto
- Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | - A Hosokawa
- Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | - K Yamamoto
- Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | - A Nomura
- Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | - E Woo
- Osaka Medical College, Takatsuki, Japan
| | - H Imano
- Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | - R Kato
- Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | - Y Ijiri
- Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | | | - Y Izumi
- Osaka City University, Osaka, Japan
| | | | - Y Okada
- Osaka Medical College, Takatsuki, Japan
| | - M Asahi
- Osaka Medical College, Takatsuki, Japan
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Tabernero J, Shitara K, Dvorkin M, Mansoor W, Arkenau HT, Prokharau A, Alsina M, Ghidini M, Faustino C, Gorbunova V, Zhavrid E, Nishikawa K, Hosokawa A, Ganea D, Yalçın Ş, Fujitani K, Beretta G, Winkler R, Makris L, Doi T, Ilson D. Overall survival results from a phase III trial of trifluridine/tipiracil versus placebo in patients with metastatic gastric cancer refractory to standard therapies (TAGS). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy208.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Yuki S, Komatsu Y, Yagisawa M, Tsuji Y, Harada K, Hatanaka K, Okuda H, Hosokawa A, Ogawa K, Furukawa K, Minami S, Ishiguro A, Honda T, Ohta T, Dazai M, Eto K, Sasaki T, Nakajima J, Sakamoto N, Sakata Y. A retrospective cohort study evaluating the safety and efficacy of TAS-102 in patients with metastatic colorectal cancer [HGCSG1503]: Updated analysis. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.129] [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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Hosokawa A. Investigation of piezoelectric anisotropy of bovine cortical bone at an ultrasound frequency by coupling an experiment and a simulation. J Acoust Soc Am 2017; 142:EL184. [PMID: 28863579 DOI: 10.1121/1.4996909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An investigation of the piezoelectric anisotropy of bovine cortical bone at 1 MHz was attempted by coupling data obtained from an experiment and a simulation. In the experiment, a piezoelectric cell (PE-cell) was used as an ultrasound receiver. In the PE-cell, the cortical bone disk, which was cut in the direction perpendicular to the bone axis, was electrically shielded. The directivity of the PE-cell was measured at 0°-22.5° and was compared to four simulated results using the piezoelectric finite-difference time-domain method. It was shown that the piezoelectric signal in the bone could be generated by a transverse ultrasound wave.
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Affiliation(s)
- A Hosokawa
- Department of Electrical and Computer Engineering, National Institute of Technology, Akashi College, 679-3 Nishioka, Uozumi, Akashi, Hyogo 674-8501, Japan
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Hosokawa A. COULD POSITIVE EFFECTS OF LIFE REVIEW ON COGNITION LAST? THE FOLLOW-UP STUDY ON LIFE REVIEW IN TOME. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A. Hosokawa
- National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
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Ando T, Yuki S, Nakatsumi H, Muranaka T, Hosokawa A, Tsuji Y, Nakamura M, Muto O, Sasaki T, Iwanaga I, Hatanaka K, Sato A, Eto K, Furukawa K, Tateyama M, Takahashi Y, Sogabe S, Honda T, Sakata Y, Komatsu Y. 172PD Final analysis: Phase II trial of irinotecan/S-1/cetuximab (IRIS/Cet) as second line treatment in patients with KRAS exon2 wild type metastatic colorectal cancer: HGCSG0902. Comparison of administration interval in cetuximab treatment. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw581.004] [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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Hosokawa A. Experimental observation of piezoelectric effect in cancellous bone generated by ultrasound irradiation. J Acoust Soc Am 2016; 140:EL441. [PMID: 27908076 DOI: 10.1121/1.4967710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, piezoelectric cells (PE-cells) of cancellous bone were experimentally produced to receive an ultrasound wave. In the PE-cell, a bovine cancellous bone specimen, in which the pore spaces were saturated with air, was electrically shielded to prevent electromagnetic noise. As a result, the piezoelectric signal generated in the cancellous bone specimen by irradiating an ultrasound burst wave at 1.0 MHz could be clearly observed in water. The experimental results showed that the ultrasound sensitivity per unit area of cancellous bone was estimated to be below 1/100 and 1/100 000 of cortical bone and poly(vinylidene fluoride), respectively.
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Affiliation(s)
- A Hosokawa
- Department of Electrical and Computer Engineering, National Institute of Technology, Akashi College, 679-3 Nishioka, Uozumi, Akashi, Hyogo 674-8501, Japan
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Ioka T, Fukutomi A, Mizusawa J, Katayama H, Nakamura S, Ito Y, Hiraoka N, Ueno M, Ikeda M, Sugimori K, Shimizu K, Okusaka T, Ozaka M, Yanagimoto H, Nakamori S, Azuma T, Hosokawa A, Sata N, Mine T, Furuse J. Randomized phase II study of S-1 and concurrent radiotherapy with versus without induction chemotherapy of gemcitabine for locally advanced pancreatic cancer (LAPC): Final analysis of JCOG1106. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw371.13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Yuki S, Komatsu Y, Muranaka T, Harada K, Sugiyama J, Tsuji Y, Ando T, Hosokawa A, Hatanaka K, Naruse H, Takahata T, Sato A, Kobayashi Y, Miyagishima T, Okuda H, Kudo M, Nakamura M, Hisai H, Sakamoto N, Sakata Y. Phase II trial of panitumumab monotherapy for patients with KRAS exon2 wild type colorectal cancer after progression on cetuximab. HGCSG1101. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Yuki S, Komatsu Y, Nakatsumi H, Kawamoto Y, Muranaka T, Sawada K, Tsuji Y, Hosokawa A, Nakamura M, Muto O, Sasaki T, Iwanaga I, Hatanaka K, Sato A, Eto K, Furukawa K, Tateyama M, Takahashi Y, Sogabe S, Honda T, Sakamoto N, Sakata Y. P-147 Final analysis: phase II trial of Irinotecan/S-1/cetuximab (IRIS/Cet) as second line treatment in patients with KRAS exon2 wild type mCRC: HGCSG0902. -comparison of administration interval in cetuximab treatment. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.141] [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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22
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Yamazaki K, Nagase M, Tamagawa H, Ueda S, Tamura T, Murata K, Eguchi Nakajima T, Baba E, Tsuda M, Moriwaki T, Esaki T, Tsuji Y, Muro K, Taira K, Denda T, Funai S, Shinozaki K, Yamashita H, Sugimoto N, Okuno T, Nishina T, Umeki M, Kurimoto T, Takayama T, Tsuji A, Yoshida M, Hosokawa A, Shibata Y, Suyama K, Okabe M, Suzuki K, Seki N, Kawakami K, Sato M, Fujikawa K, Hirashima T, Shimura T, Taku K, Otsuji T, Tamura F, Shinozaki E, Nakashima K, Hara H, Tsushima T, Ando M, Morita S, Boku N, Hyodo I. Randomized phase III study of bevacizumab plus FOLFIRI and bevacizumab plus mFOLFOX6 as first-line treatment for patients with metastatic colorectal cancer (WJOG4407G). Ann Oncol 2016; 27:1539-46. [PMID: 27177863 DOI: 10.1093/annonc/mdw206] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/09/2016] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND FOLFIRI and FOLFOX have shown equivalent efficacy for metastatic colorectal cancer (mCRC), but their comparative effectiveness is unknown when combined with bevacizumab. PATIENTS AND METHODS WJOG4407G was a randomized, open-label, phase III trial conducted in Japan. Patients with previously untreated mCRC were randomized 1:1 to receive either FOLFIRI plus bevacizumab (FOLFIRI + Bev) or mFOLFOX6 plus bevacizumab (mFOLFOX6 + Bev), stratified by institution, adjuvant chemotherapy, and liver-limited disease. The primary end point was non-inferiority of FOLFIRI + Bev to mFOLFOX6 + Bev in progression-free survival (PFS), with an expected hazard ratio (HR) of 0.9 and non-inferiority margin of 1.25 (power 0.85, one-sided α-error 0.025). The secondary end points were response rate (RR), overall survival (OS), safety, and quality of life (QoL) during 18 months. This trial is registered to the University Hospital Medical Information Network, number UMIN000001396. RESULTS Among 402 patients enrolled from September 2008 to January 2012, 395 patients were eligible for efficacy analysis. The median PFS for FOLFIRI + Bev (n = 197) and mFOLFOX6 + Bev (n = 198) were 12.1 and 10.7 months, respectively [HR, 0.905; 95% confidence interval (CI) 0.723-1.133; P = 0.003 for non-inferiority]. The median OS for FOLFIRI + Bev and mFOLFOX6 + Bev were 31.4 and 30.1 months, respectively (HR, 0.990; 95% CI 0.785-1.249). The best overall RRs were 64% for FOLFIRI + Bev and 62% for mFOLFOX6 + Bev. The common grade 3 or higher adverse events were leukopenia (11% in FOLFIRI + Bev/5% in mFOLFOX6 + Bev), neutropenia (46%/35%), diarrhea (9%/5%), febrile neutropenia (5%/2%), peripheral neuropathy (0%/22%), and venous thromboembolism (6%/2%). The QoL assessed by FACT-C (TOI-PFC) and FACT/GOG-Ntx was favorable for FOLFIRI + Bev during 18 months. CONCLUSION FOLFIRI plus bevacizumab was non-inferior for PFS, compared with mFOLFOX6 plus bevacizumab, as the first-line systemic treatment for mCRC. CLINICAL TRIALS NUMBER UMIN000001396.
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Affiliation(s)
- K Yamazaki
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka
| | - M Nagase
- Department of Clinical Oncology, Jichi Medical University, Shimotsuke
| | - H Tamagawa
- Department of Surgery, Osaka General Medical Center, Osaka
| | - S Ueda
- Department of Medical Oncology, Kinki University Faculty of Medicine, Higashiosaka
| | - T Tamura
- Department of Medical Oncology, Nara Hospital Kinki University Faculty of Medicine, Ikoma
| | - K Murata
- Department of Surgery, Suita Municipal Hospital, Suita
| | - T Eguchi Nakajima
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki
| | - E Baba
- Department of Comprehensive Clinical Oncology, Kyushu University Faculty of Medical Sciences, Fukuoka
| | - M Tsuda
- Department of Gastroenterological Oncology, Hyogo Cancer Center, Akashi
| | - T Moriwaki
- Division of Gastroenterology, University of Tsukuba, Tsukuba
| | - T Esaki
- Department of Gastrointestinal and Medical Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka
| | - Y Tsuji
- Department of Medical Oncology, Tonan Hospital, Sapporo
| | - K Muro
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya
| | - K Taira
- Clinical Oncology, Osaka City General Hospital, Osaka
| | - T Denda
- Division of Gastroenterology, Chiba Cancer Center, Chiba
| | - S Funai
- Department of Surgery, Sakai Hospital Kinki University Faculty of Medicine, Sakai
| | - K Shinozaki
- Division of Clinical Oncology, Hiroshima Prefectural Hospital, Hiroshima
| | - H Yamashita
- Department of Gastroenterology and Hepatology, Okayama Medical Center, Okayama
| | - N Sugimoto
- Department of Clinical Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka
| | - T Okuno
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe
| | - T Nishina
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Matuyama
| | - M Umeki
- Department of Surgery, Hyogo Prefectural Awaji Medical Center, Sumoto
| | - T Kurimoto
- Department of Gastrointestinal Oncology, Nagoya Kyoritsu Hospital, Nagoya
| | - T Takayama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School, Tokushima
| | - A Tsuji
- Department of Medical Oncology, Kochi Health Sciences Center, Kochi
| | - M Yoshida
- Division of Cancer Chemotherapy Center, Osaka Medical College Hospital, Takatsuki
| | - A Hosokawa
- Department of Gastroenterology and Hematology, Faculty of Medicine, University of Toyama, Toyama
| | - Y Shibata
- Department of Chemotherapy, Miyazaki Prefectural Miyazaki Hospital, Miyazaki
| | - K Suyama
- Department of Medical Oncology, Toranomon Hospital, Tokyo
| | - M Okabe
- Department of Surgery, Kurashiki Central Hospital, Kurashiki
| | - K Suzuki
- Department of gastroenterology, Kushiro City General Hospital, Kushiro
| | - N Seki
- Division of Medical Oncology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo
| | - K Kawakami
- Department of Gastroenterology, Muroran City General Hospital, Muroran
| | - M Sato
- Department of Gastroenterology and Hepatology, Ryuugasaki Saiseikai Hospital, Ryugasaki
| | - K Fujikawa
- Department of Gastroenterology, Hokkaido Cancer Center, Sapporo
| | - T Hirashima
- Department of Thoracic Malignancy, Osaka Prefectural Medical Center for Respiratory and Allergic Diseases, Habikino
| | - T Shimura
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya
| | - K Taku
- Division of Medical Oncology, Shizuoka General Hospital, Shizuoka
| | - T Otsuji
- Department of Gastroenterology, Dongo Hospital, Yamatotakada
| | - F Tamura
- Department of Gastroenterology, Kumamoto Regional Medical Center, Kumamoto
| | - E Shinozaki
- Department of Gastroenterology, Cancer Institute Hospital of JFCR, Tokyo
| | - K Nakashima
- First Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki
| | - H Hara
- Department of Gastroenterology, Saitama Cancer Center, Saitama
| | - T Tsushima
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka
| | - M Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya
| | - S Morita
- Department of Biomedical Statistics and Bioinformatics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - N Boku
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki
| | - I Hyodo
- Division of Gastroenterology, University of Tsukuba, Tsukuba
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Kakushima N, Hori K, Ono H, Horimatsu T, Uedo N, Ohata K, Doyama H, Kaneko K, Oda I, Hikichi T, Kawahara Y, Niimi K, Takaki Y, Mizuno M, Yazumi S, Hosokawa A, Imagawa A, Niimi M, Yoshimura K, Muto M. Proton pump inhibitor after endoscopic resection for esophageal squamous cell cancer: multicenter prospective randomized controlled trial. J Gastroenterol 2016; 51:104-11. [PMID: 25940151 DOI: 10.1007/s00535-015-1085-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/20/2015] [Indexed: 02/04/2023]
Abstract
BACKGROUND Whether proton pump inhibitors (PPIs) relieve heartburn or precordial pain after endoscopic resection (ER) for esophageal squamous cell carcinoma (ESCC) remains unclear. The aim of this study was to investigate the efficacy of PPI therapy for these symptoms after ER for ESCC. METHODS We conducted a multicenter prospective randomized controlled trial among 15 hospitals in Japan. In total, 229 patients with cT1a ESCC were randomly assigned to receive PPI therapy for 5 weeks after ER (the PPI group, n = 115) or follow-up without PPI therapy (the non-PPI group, n = 114). The primary end point was the incidence of gastroesophageal reflux disease (GERD)-like symptoms after ER from a self-reported questionnaire (Frequency Scale for Symptoms of GERD). Secondary end points were ulcer healing rate at 5 weeks, incidence of pain, improvement rate of symptoms in those who started PPI therapy because of GERD-like symptoms in the non-PPI group, and adverse events. RESULTS No significant difference was observed in the incidence of GERD-like symptoms after ER between the non-PPI and PPI groups (30 % vs 34 %, respectively). No significant differences were observed in the ulcer healing rate at 5 weeks (84 % vs 85 %) and incidence of pain within 1 week (36 % vs 45 %). In nine of ten patients (90 %) who started PPI therapy because of GERD-like symptoms in the non-PPI group, PPI administration relieved GERD-like symptoms. No adverse events related to PPI administration were observed. CONCLUSION PPI therapy is not efficacious in reducing symptoms and did not promote healing of ulcers in patients undergoing ER for ESCC.
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Affiliation(s)
- N Kakushima
- Division of Endoscopy, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi, Suntougun, Shizuoka, 4118777, Japan.
| | - K Hori
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Ono
- Division of Endoscopy, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi, Suntougun, Shizuoka, 4118777, Japan
| | - T Horimatsu
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - N Uedo
- Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - K Ohata
- NTT Medical Center Tokyo, Tokyo, Japan
| | - H Doyama
- Ishikawa Prefectural Central Hospital, Kanazawa, Ishikawa, Japan
| | - K Kaneko
- National Cancer Center East, Chiba, Japan
| | - I Oda
- National Cancer Center, Tokyo, Japan
| | - T Hikichi
- Fukushima Medical University, Fukushima, Japan
| | - Y Kawahara
- Okayama University Hospital, Okayama, Japan
| | - K Niimi
- The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Y Takaki
- Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - M Mizuno
- Hiroshima City Hospital, Hiroshima, Japan
| | - S Yazumi
- Kitano General Hospital, Osaka, Japan
| | - A Hosokawa
- Toyama University Hospital, Toyama, Japan
| | - A Imagawa
- Mitoyo General Hospital, Kanonji, Kagawa, Japan
| | - M Niimi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Yoshimura
- Kobe University School of Medicine, Kobe, Japan
| | - M Muto
- Kyoto University Graduate School of Medicine, Kyoto, Japan
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24
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Hosokawa A, Yuki S, Kawamoto Y, Ando T, Muto O, Nakamura M, Kato T, Iwanaga I, Hatanaka K, Tsuji Y, Sato A, Eto K, Furukawa K, Okuda H, Hayashi H, Fujikawa K, Kudo M, Honda T, Sakata Y, Komatsu Y. 162P Updated analysis: Phase II trial of irinotecan plus S-1 (IRIS) with cetuximab (IRIS/Cet) in pre-treated patients with KRAS wild type metastatic colorectal cancer (mCRC): HGCSG0902. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Nakamura M, Yuki S, Nakatsumi H, Muto O, Hosokawa A, Kato T, Iwanaga I, Hatanaka K, Tsuji Y, Sato A, Eto K, Furukawa K, Okuda H, Onodera M, Fujikawa K, Kudo M, Yokoyama S, Honda T, Sakata Y, Komatsu Y. 2096 Phase II trial of Irinotecan plus S-1 (IRIS) with Cetuximab (IRIS/Cet) in pre-treated patients with KRAS wild type of metastatic colorectal cancer (mCRC): HGCSG0902 updated analysis. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31018-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Hatanaka K, Yuki S, Nakatsumi H, Hosokawa A, Nakamura M, Muto O, Meguro T, Iwanaga I, Tsuji Y, Sato A, Eto K, Furukawa K, Onodera M, Tateyama M, Takahashi Y, Dazai M, Yokoyama S, Honda T, Okuda H, Kudo M, Sakata Y, Komatsu Y. P-269 Phase II trial of Irinotecan/S-1 (IRIS) with Cetuximab (IRIS/Cet) as second line treatment in patients with KRAS WT metastatic colorectal cancer: HGCSG0902. -Comparison of administration interval in Cetuximab treatment. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.266] [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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27
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Muto O, Yuki S, Nakamura M, Hosokawa A, Kato T, Iwanaga I, Hatanaka K, Tsuji Y, Sato A, Eto K, Furukawa K, Okuda H, Onodera M, Fujikawa K, Kudo M, Yokoyama S, Honda T, Sakata Y, Komatsu Y. First Report of a Phase Ii Trial of Irinotecan Plus S-1 (Iris) with Cetuximab (Iris/Cet) in Pre-Treated Patients with Kras Wild Type of Metastatic Colorectal Cancer (Mcrc): Hgcsg0902. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.41] [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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28
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Ando T, Hosokawa A, Nanjo S, Ueda A, Mihara H, Kajiura S, Fujinami H, Yohita H, Nishikawa J, Sugiyama T. Molecular Characterization of Gastric Neuroendocrine Carcinoma Based on Extensive Sequence Variation and Genome-Wide Methylation Analysis. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu359.17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Fujinami H, Hosokawa A, Ogawa K, Nishikawa J, Kajiura S, Ando T, Ueda A, Yoshita H, Sugiyama T. Endoscopic submucosal dissection for superficial esophageal neoplasms using the stag beetle knife. Dis Esophagus 2014; 27:50-4. [PMID: 23442212 DOI: 10.1111/dote.12039] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Endoscopic submucosal dissection (ESD) is an accepted standard treatment for early gastric cancer but is not widely used in the esophagus because of technical difficulties. To increase the safety of esophageal ESD, we used a scissors-type device called the stag beetle (SB) knife. The aim of this study was to determine the efficacy and safety of ESD using the SB knife. We performed a single-center retrospective, uncontrolled trial. A total of 38 lesions were excised by ESD from 35 consecutive patients who were retrospectively divided into the following two groups according to the type of knife used to perform ESD: the hook knife (hook group) was used in 20 patients (21 lesions), and the SB knife (SB group) was used in 15 patients (17 lesions). We evaluated and compared the operative time, lesion size, en bloc resection rate, pathological margins free rate, and complication rate in both groups. The operative time was shorter in the SB group (median 70.0 minutes [interquartile range, 47.5-87.0]) than in the hook group (92.0 minutes [interquartile range, 63.0-114.0]) (P = 0.019), and the rate of complications in the SB group was 0% compared with 45.0% in the hook group (P = 0.004). However, the lesion size, en bloc resection rate, and pathological margins free rate did not differ significantly between the two groups. In conclusion, ESD using the SB knife was safer than that using a conventional knife for superficial esophageal neoplasms.
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Affiliation(s)
- H Fujinami
- Department of Gastroenterology, University of Toyama, Toyama, Japan
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30
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Ogawa K, Hosokawa A, Ueda A, Ando T, Kajiura S, Shibata K, Horikawa N, Note M, Terada M, Sugiyama T. Analysis of Definitive Chemoradiotherapy (CRT) in Each Clinical Stage for Elderly Patients with Esophageal Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.116] [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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31
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Nishikawa J, Mihara H, Fujinami H, Nakajima T, Hosokawa A, Sugiyama T. Education and imaging. Gastrointestinal: Cobblestone in sigmoid volvulus. J Gastroenterol Hepatol 2013; 28:1072. [PMID: 23782118 DOI: 10.1111/jgh.12256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- J Nishikawa
- Department of Gastroenterology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
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Nakachi K, Okusaka T, Iguchi H, Shimamura T, Ioka T, Hosokawa A, Ikeda M, Morizane C, Asagi A, Junji F. A Multi-Center Phase II Study of Intra-Arterial Chemotherapy of a Fine-Powder Formulation of Cisplatin in Patients with Advanced Intrahepatic Cholangiocarcinoma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32338-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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33
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Komatsu Y, Yuki S, Kawamoto Y, Hayashi H, Kato T, Hosokawa A, Iwanaga I, Muto O, Hatanaka K, Nakamura M, Tsuji Y, Tateyama M, Fukushima H, Kudo M, Sakata Y. Safety Report of a Phase II Trial of Irinotecan Plus S-1 (Iris) with Cetuximab in Pre-Treated Patients with KRAS Wild Type of Metastatic Colorectal Cancer: HGCSG0902. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32205-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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34
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Ueda A, Hosokawa A, Ogawa K, Kamuro A, Yoshita H, Nakada N, Andou T, Kajiura S, Tsukioka Y, Kobayashi T, Horikawa N, Nishida Y, Hirai N, Terada M, Sugiyama T. Non-Randomized Comparison between Irinotecan–Mitomycin C and Irinotecan alone in Patients with Advanced Gastric Cancer Refractory to Fluoropyrimidine and Platinum. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32460-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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35
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Kasuga A, Yamaguchi T, Machida N, Takahashi H, Sudo K, Nishina T, Nishisaki H, Ishido K, Okuno T, Moriwaki T, Kawai H, Kobayashi S, Hosokawa A, Furuse J, Boku N. Multicenter Retrospective Analysis of Systemic Chemotherapy for Advanced Poorly Differentiated Neuroendocrine Carcinoma of Digestive System. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32348-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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36
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Hosokawa A, Ogawa K, Kajiura S, Tsukioka Y, Kobayashi T, Horikawa N, Kobayashi Y, Yoshioka A, Sumi S, Sugiyama T. A phase I/II study of S-1 plus cisplatin alternating with S-1 plus docetaxel in patients with advanced gastric cancer (AGC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
101 Background: S-1 plus cisplatin has been regarded as standard first-line chemotherapy for patients with AGC in Japan, and S- 1 plus docetaxel showed promising results for AGC in clinical trials. To investigate the usefulness of S-1 plus cisplatin alternating with S-1 plus docetaxel as first-line treatment in patients with AGC, we conducted a phase I/II study to determine the maximum tolerated dose (MTD), the recommended dose (RD), preliminary efficacy and toxicity. Methods: Eligibility criteria included pathologically confirmed AGC; no prior chemotherapy; Age 20 to 74, ECOG performance status (PS) of 0 to 2; adequate organ function; and written informed consent. Cisplatin was administered on day1 and the dose was escalated by 10 mg/m2 from starting dose of 40 mg/m2 in phase I part. S-1 was given orally at 80 mg/m2 on day1-14. Docetaxel was administered at 40 mg/m2 on day 22 in combination with S-1 80 mg/m2 on days 22-35. The treatment was repeated every 6 weeks. The RD was studied in every 3-6 patients cohort and determined according to the pre-defined DLTs. Primary endpoint of phase II was the response rate (RR). Results: Between Aug 2006 and Jul 2010, 33 pts were enrolled. Nine patients entered the phase I part and 24 enrolled in phase II part. In the phase I part, the MTD of cisplatin was presumed to be 50 mg/m2, because 50% of patients (3/6) developed DLTs. Therefore, the RD of cisplatin was estimated as 40 mg/m2, and the 27 patients received the treatment at RD level. Patients characteristics were as follows: median age=65 years (range 48-74), Male: female=21:6, PS 0:1:2=11:16:0, diffuse: intestinal=19:8, initially unresectable: recurrent=24:3. The RR was 59.2% (95% CI, 40.7-77.7). Median follow-up period was 14.6 months, median PFS was 7.9 months, and median survival time was 17.2 months, although survival data remain to be confirmed. Major grade 3/4 toxicities were neutropenia (63%), leucopenia (41%), and anemia (33%). These toxicities were tolerable and manageable. No treatment-related death was observed. The updated analysis will be presented at the meeting. Conclusions: This alternating treatment seems to be effective and well tolerated in the first-line treatments in patients with AGC. No significant financial relationships to disclose.
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Affiliation(s)
- A. Hosokawa
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - K. Ogawa
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - S. Kajiura
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - Y. Tsukioka
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - T. Kobayashi
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - N. Horikawa
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - Y. Kobayashi
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - A. Yoshioka
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - S. Sumi
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
| | - T. Sugiyama
- University of Toyama, Toyama, Japan; Takaoka City Hospital, Takaoka, Japan; Tachikawa General Hospital, Nagaoka, Japan; Mitsubishi Kyoto Hospital, Kyoto, Japan
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37
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Yokoyama H, Yanagida T, Freeman MA, Katagiri T, Hosokawa A, Endo M, Hirai M, Takagi S. Molecular diagnosis of Myxobolus spirosulcatus associated with encephalomyelitis of cultured yellowtail, Seriola quinqueradiata Temminck & Schlegel. J Fish Dis 2010; 33:939-946. [PMID: 21091721 DOI: 10.1111/j.1365-2761.2010.01203.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Mass mortality of cultured yellowtail, Seriola quinqueradiata, has recently been reported from fish farms in western Japan. Previous studies revealed that diseased fish were characterized by encephalomyelitis and presporogonic stages of a myxosporean-like parasite in the spinal cord. However, the parasite has remained unidentified because of the lack of mature stages being present. Thus, in the present study, analysis of the small subunit ribosomal DNA (18S rDNA) of the parasite as well as in situ hybridization (ISH) studies using histological sections of the infected tissue was conducted. The 18S rDNA of the myxosporean had higher sequence similarities with those of bile-duct-infecting myxosporeans rather than those infecting nervous tissues and was identified as Myxobolus spirosulcatus. The ISH using specific probes demonstrated that the DNA amplified was derived from the multinuclear organisms found in histological sections. A highly sensitive and specific PCR-based assay for M. spirosulcatus was developed, which revealed a high prevalence of infection in cultured yellowtail that exhibited the clinical signs of encephalomyelitis.
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Affiliation(s)
- H Yokoyama
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, Japan.
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Hosokawa A, Kajiura S, Kobayashi Y, Ogawa K, Saito S, Tsukioka Y, Kobayashi T, Horikawa N, Sawasaki K, Sugiyama T. 3508 Preventive effect of traditional Japanese medicine on neurotoxicity of FOLFOX for metastatic colorectal cancer: a multicenter retrospective study. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)70696-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Fujinami H, Kudo T, Miyazaki T, Hosokawa A, Mihara H, Ando T, Sugiyama T. The modified glucose clearance test: a novel non-invasive method for differentiating non-erosive reflux disease and erosive oesophagitis. Aliment Pharmacol Ther 2008; 28:1259-64. [PMID: 18761705 DOI: 10.1111/j.1365-2036.2008.03842.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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Impaired salivary secretion has been reported to cause abnormal acid clearance from the oesophagus in gastro-oesophageal reflux disease (GERD). However, few studies have explained the differences between non-erosive reflux disease (NERD) and erosive oesophagitis (EO) with respect to salivary secretion. Aim To elucidate these differences, we measured salivary secretion by using the modified glucose clearance test (mGCT). METHODS All subjects completed endoscopic examinations, the frequency scale for the symptoms of GERD questionnaire and the mGCT comprising a resting GCT (measured as RGC time) and a chewing-stimulated GCT (SGC time). RESULTS Resting glucose clearance time was 18.5 min in control group and significantly longer in NERD and EO groups (28.5 and 39.0 min respectively). SGC time was 6.1 min in control group and 7.2 min in NERD group and significantly longer in EO group (10.2 min) than in the control and NERD groups. CONCLUSIONS In the EO group, both resting and stimulated salivary secretions were less than in control group. However, in the NERD group, resting salivary secretion was decreased, but stimulated salivary secretion was similar to that of the control group. Therefore, these results may help in explaining the differences in the pathogenesis of NERD and EO.
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Affiliation(s)
- H Fujinami
- Department of Gastroenterology, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, Toyama, Japan
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Tsujikawa M, Hosokawa A, Oda T. Magnetic anisotropies of iron on the Pt(111) surface. J Phys Condens Matter 2007; 19:365208. [PMID: 21694154 DOI: 10.1088/0953-8984/19/36/365208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We have studied magnetic anisotropies of Fe atoms on the platinum (111) surface, employing a fully relativistic pseudopotential and plane wave method with the local spin density approximation. We investigated three surface structures with different Fe monolayer coverages: full coverage, half-coverage and quarter-coverage. The effect of surface relaxation has been included. It was found that the magnetic easy axis of the system is within the surface plane for all systems investigated. In the system of an Fe chain on Pt(111), having an anisotropic local structure, the magnetic anisotropy energy is much enhanced after surface relaxation. This absolute value is larger compared with the value for bulk alloy and the magnetic easy axis is directed parallel to the alignment of Fe atoms.
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Affiliation(s)
- M Tsujikawa
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Japan
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Nii-Kono T, Iwasaki Y, Uchida M, Fujieda A, Hosokawa A, Motojima M, Yamato H, Kurokawa K, Fukagawa M. Indoxyl sulfate induces skeletal resistance to parathyroid hormone in cultured osteoblastic cells. Kidney Int 2007; 71:738-43. [PMID: 17264878 DOI: 10.1038/sj.ki.5002097] [Citation(s) in RCA: 131] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Skeletal resistance to parathyroid hormone (PTH) is well known to the phenomenon in chronic renal failure patient, but the detailed mechanism has not been elucidated. In the process of analyzing an animal model of renal failure with low bone turnover, we demonstrated decreased expression of PTH receptor (PTHR) accompanying renal dysfunction in this model. In the present study, we focused on the accumulation of uremic toxins (UTx) in blood, and examined whether indoxyl sulfate (IS), a UTx, is associated with PTH resistance. We established primary osteoblast cultures from mouse calvariae and cultured the cells in the presence of IS. The intracellular cyclic adenosine 3',5' monophosphate (cAMP) production, PTHR expression, and free radical production in the primary osteoblast culture were studied. We found that the addition of IS suppressed PTH-stimulated intracellular cAMP production and decreased PTHR expression in this culture system. Free radical production in osteoblasts increased depending on the concentration of IS added. Furthermore, expression of organic anion transporter-3 (OAT-3) that is known to mediate cellular uptake of IS was identified in the primary osteoblast culture. These results suggest that IS taken up by osteoblasts via OAT-3 present in these cells augments oxidative stress to impair osteoblast function and downregulate PTHR expression. These finding strongly suggest that IS accumulated in blood due to renal dysfunction is at least one of the factors that induce skeletal resistance to PTH.
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Affiliation(s)
- T Nii-Kono
- Division of Nephrology and Dialysis Center, Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
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Abstract
The trabecular frame of cancellous bone has a high degree of porosity, anisotropy and inhomogeneity. The propagation of ultrasonic waves in cancellous bone is significantly affected by the trabecular structure. In this paper, two two-dimensional finite-difference time-domain (FDTD) methods, which were the popular viscoelastic FDTD method for a viscoelastic medium and Biot's FDTD method for a fluid-saturated porous medium, have been applied to numerically analyze the ultrasonic pulse waves propagating through bovine cancellous bone in the directions parallel and perpendicular to the trabecular alignment. The Biot's fast and slow longitudinal waves, which were identified in previous experiments for the propagation parallel to the trabecular orientation, could be analyzed using Biot's FDTD method rather than the viscoelastic FDTD method. For the single wave propagation in the perpendicular direction, on the other hand, the viscoelastic FDTD result was found to be in more good agreement with the experimental result.
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Affiliation(s)
- A Hosokawa
- Department of Electrical and Computer Engineering, Akashi National College of Technology, Nishioka, Uozumi, Akashi, Hyogo, Japan.
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Abstract
Abnormal bone turnover and mineral metabolism is observed in patients on dialysis. Secondary hyperparathyroidism (SHP) develops in response to mineral metabolism changes accompanying renal failure. As a factor of disease progression, the phenomenon of skeletal resistance to parathyroid hormone (PTH) is observed. With recent advances in the treatment of SHP, over-secretion of PTH can now be controlled. However, blood PTH levels 2 to 3 times higher than normal are considered necessary to maintain normal bone turnover in patients with renal failure. Various causes of skeletal resistance to PTH have been reported, including decrease in PTH receptor in osteoblasts, accumulation of 7-84 PTH fragment, and accumulation of osteoprotegerin. This skeletal resistance to PTH is not only a high-turnover bone accompanying SHP, but may also play a crucial role in the onset of low-turnover bone disease. We have produced a rat model of renal failure with normal level of PTH secretion and analyzed the bone of this model. Our results confirmed that bone turnover is lowered accompanying renal function impairment. We also found that this lowered bone turnover is improved by intermittent administration of PTH. In addition, PTH receptor gene expression is also decreased in low-turnover bone, as is observed in high-turnover bone disease. These findings confirm the presence of skeletal resistance to PTH in low-turnover bone accompanying renal failure. Control of calcium, phosphorus, and PTH levels with the target to maintain normal bone turnover is important in maintaining the quality of life of patients on dialysis.
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Affiliation(s)
- Y Iwasaki
- Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita, Japan.
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Hosokawa A. Simulation of ultrasound propagation through bovine cancellous bone using elastic and Biot's finite-difference time-domain methods. J Acoust Soc Am 2005; 118:1782-9. [PMID: 16240836 DOI: 10.1121/1.2000767] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The propagation of ultrasonic pulse waves in bovine cancellous bone has been numerically analyzed in two dimensions by using two finite-difference time-domain (FDTD) methods: the commonly used elastic FDTD method and an FDTD method extended with Biot's theory for a porous elastic solid saturated with viscous fluid. Both FDTD results were compared with the results of previous experiments by Hosokawa and Otani [J. Acoust. Soc. Am. 101, 558-562 (1997)], in which the Biot's fast and slow longitudinal waves were clearly identified. It was difficult to analyze both the fast and slow waves with the elastic FDTD method because of the inadequate 2D model of cancellous bone. On the other hand, in Biot's FDTD results that consider the pore fluid motion relative to the solid frame, both waves could be clearly observed. The experimental and simulated values of the speeds of these waves were in good agreement. Using the modified Biot's FDTD equations containing the possible attenuations for the fast wave other than the viscous loss due to the pore fluid motion, the amplitude ratio of the slow wave to the fast wave largely increased with the porosity, which also agrees with the experimental results.
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Affiliation(s)
- A Hosokawa
- Department of Electrical and Computer Engineering, Akashi National College of Technology, 679-3 Nishioka, Uozumi, Akashi, 674-8501 Hyogo, Japan
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Muto M, Miyamoto S, Hosokawa A, Doi T, Ohtsu A, Yoshida S, Endo Y, Hosokawa K, Saito D, Shim CS, Gossner L. Endoscopic mucosal resection in the stomach using the insulated-tip needle-knife. Endoscopy 2005; 37:178-82. [PMID: 15692936 DOI: 10.1055/s-2004-826194] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- M Muto
- Division of Digestive Endoscopy and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwanoha, Chiba, Japan.
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Khaskhely NM, Maruno M, Takamiyagi A, Uezato H, Kasem KM, Hosokawa A, Kariya K, Hashiguchi Y, Landires EA, Nonaka S. Pre-exposure with low-dose UVA suppresses lesion development and enhances Th1 response in BALB/c mice infected with Leishmania (Leishmania) amazonensis. J Dermatol Sci 2001; 26:217-32. [PMID: 11390207 DOI: 10.1016/s0923-1811(01)00098-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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: 10/18/2022]
Abstract
This study was conducted to determine whether exposing mice to ultraviolet (UV) radiation would alter the pathogenesis of infection with Leishmania (Leishmania) amazonensis (L. amazonensis) which causes progressive cutaneous disease in susceptible mouse strains. BALB/c mice were irradiated with 10 and 30 J/cm(2) UVA on shaved skin of the back from Dermaray (M-DMR-100) for 4 consecutive days before infection with Leishmania promastigotes. The course of disease was recorded by measuring the size of lesions at various times after infection. Mice groups irradiated with UVA 10 and 30 J/cm(2) showed significantly suppressed lesion development compared with the non-irradiated mice. Light and electron microscopy revealed a few parasites at the site of inoculation in UVA-irradiated subjects. Sandwich enzyme-linked-immunosorbent-assay (ELISA) examination of sera showed dose dependently upregulated interferon-gamma (IFN-gamma), tumor necrosis factor-alpha (TNF-alpha) and interleukin (IL)-12, and downregulated interleukin (IL)-4 and interleukin (IL)-10 levels in UVA-irradiated as compared with the non-irradiated mice. Positive signals for IFN-gamma mRNA in irradiated mice were obtained by RT-PCR, while non-irradiated mice showed negative results. None of the examined samples showed signal for IL-4 mRNA. The present study disclosed that exposure of mice to different low-doses of UVA irradiation prior to infection may interfere with immunity to L. amazonensis in the murine model. This indicates that the cell-mediated response switch from Th2 to Th1 pattern suppressed the cutaneous lesions of L. amazonensis.
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Affiliation(s)
- N M Khaskhely
- Department of Dermatology, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan.
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Hosokawa A, Katsurada M, Ikeda O, Minami N, Jikihara T. Synthesis of optically active N-(2-pyridyloxiran-2-ylmethyl) benzenesulfonamide derivatives and their herbicidal activity. Biosci Biotechnol Biochem 2001; 65:1482-8. [PMID: 11515529 DOI: 10.1271/bbb.65.1482] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/08/2022]
Abstract
Novel herbicidally active sulfonamide compounds having a 2-arylsubstituted oxiranylmethyl structure are racemates due to a chiral carbon in the oxirane moiety. To clarify the stereochemical structure-activity relationship, we synthesized each enantiomer of 4-chloro-N-[2-(6-chloropyridin-2-yl)-2-oxiran-2-ylmethyl]-3,N-dimethylbenzenesulfonamide and N-[2-(6-chloropyridin-2-yl)-2-oxiran-2-ylmethyl]-N-methyl-5,6,7,8-tetrahydronaphthalene-2-sulfonamide by chemical methods including Sharpless asymmetric chlorohydroxylation. The results of herbicidal tests indicated that the (S)-isomers were the active forms.
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Affiliation(s)
- A Hosokawa
- Agricultural Chemicals Laboratory, Yokohama Research Center, Mitsubishi Chemical Co. Ltd., Japan.
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Abstract
Kallmann syndrome is defined by the association of hypogonadotropic hypogonadism and anosmia. The KAL1 gene is responsible for the X-linked form of Kallmann syndrome. We analyzed the KAL1 gene in 19 Japanese patients with Kallmann syndrome, including 3 patients reported previously, using PCR-direct sequencing method. All of 19 patients were sporadic, except for 2 monozygotic twins. In this study, there were 3 kinds of mutations in the KAL1 gene. One of them was a novel mutation consisting of a G to A substitution in the acceptor site at the junction of intron 6/exon 7. None of the mutations have been reported in countries other than Japan. In male sporadic patients with Kallmann syndrome, the incidence of mutations in Japanese patients (14%: 2 of 14 cases) was slightly higher than that in patients in USA (8%). Also, we found 2 polymorphisms, which were always found together in 6 patients. The severity of hypogonadism was not related to the presence of mutations. Unilateral renal aplasia and mirror movement, which are frequently found in patients with the KAL1 gene mutation, were not related to the sites of mutations.
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Affiliation(s)
- Y Izumi
- Department of Laboratory Medicine, Osaka University Graduate School of Medicine, Suita, Japan
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Matsuo T, Okamoto S, Izumi Y, Hosokawa A, Takegawa T, Fukui H, Tun Z, Honda K, Matoba R, Tatsumi K, Amino N. A novel mutation of the KAL1 gene in monozygotic twins with Kallmann syndrome. Eur J Endocrinol 2000; 143:783-7. [PMID: 11124862 DOI: 10.1530/eje.0.1430783] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [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: 11/08/2022]
Abstract
OBJECTIVE Kallmann syndrome is defined by the association of hypogonadotropic hypogonadism and anosmia. The KAL1 gene is responsible for the X-linked form of Kallmann syndrome. In this study we describe monozygotic twins with Kallmann syndrome due to the same mutation in the KAL1 gene. DESIGN We studied male monozygotic twins with Kallmann syndrome. METHODS We analyzed the KAL1 gene using the PCR-direct sequencing method. The twins' mother was examined for the identified mutation. RESULTS We identified a 14 bp deletion from codon 419 in exon 9 (Pro419del14) in both KAL1 genes of the twins. This was a novel mutation in the KAL1 gene and was responsible for Kallmann syndrome. As Pro419del14 was not detected in the mother of the twins, Pro419del14 was a germline mutation originating from them. These monozygotic twins showed different LH and FSH responses to LH-RH stimulation and different phenotypes such as complications, physiques and psychiatric characters. CONCLUSIONS We report an identical KAL1 gene mutation in the monozygotic twins with Kallmann syndrome. As these monozygotic twins showed different phenotypes in some respects, we suggest that factors other than mutations in the KAL1gene affect the symptomatic features of Kallmann syndrome.
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Affiliation(s)
- T Matsuo
- Third Department of Internal Medicine, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan
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Yamamoto T, Abe T, Mastuya M, Kobayashi K, Akaike J, Ikeda Y, Hosokawa A, Shimoji H, Sakai H, Yonezawa K, Tosaka M, Imai K, Matsumoto H. [A case with juvenile rheumatoid arthritis who developed cerebral vasculitis and venovascular hypertension]. Ryumachi 2000; 40:818-23. [PMID: 11215160] [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: 02/19/2023]
Abstract
On November, 1997, a 15-year-old boy visited our hospital because of headache, fever and arthralgia. He was treated with 5 mg/day of prednisolone thereafter. On October 21, 1998, he was admitted because of remittent fever and multiple arthralgia and diagnosis of juvenile rheumatoid arthritis (JRA) was made. He was also found to have hypertension of 210/110 mmHg, and soon developed ptosis of the eye, facial paresis and perceptive deafness of the right side. Cerebrospinal fluid showed protein of 98 mg/dl and mildly elevated IgG, IgA and IgM levels with normal cell count. Brain MRI examination revealed multiple cerebral lesions in the frontal, parietal and cerebellar areas on the right, whose cause was thought to be vasculitis. Renal angiography demonstrated a right renal artery stenosis, compatible with renovascular hypertension. He was treated with 60 mg of prednisolone per day, which brought about a satisfactory improvement of the above rheumatic and neurologic signs. On November 17, 1998, he received a follow-up study of MRI, which failed to show any cerebral lesions, supporting the effectiveness of prednisolone. An angiotensin converting enzyme inhibitor successfully normalized hypertension and renin activity in serum, although renal blood flow did not increase.
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Affiliation(s)
- T Yamamoto
- Department of Internal Medicine, Kushiro City Ceneral Hospital
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