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Yamashita K, Oka S, Yamada T, Mitsui K, Yamamoto H, Takahashi K, Shiomi A, Hotta K, Takeuchi Y, Kuwai T, Ishida F, Kudo SE, Saito S, Ueno M, Sunami E, Yamano T, Itabashi M, Ohtsuka K, Kinugasa Y, Matsumoto T, Sugai T, Uraoka T, Kurahara K, Yamaguchi S, Kato T, Okajima M, Kashida H, Akagi Y, Ikematsu H, Ito M, Esaki M, Kawai M, Yao T, Hamada M, Horimatsu T, Koda K, Fukai Y, Komori K, Saitoh Y, Kanemitsu Y, Takamaru H, Yamada K, Nozawa H, Takayama T, Togashi K, Shinto E, Torisu T, Toyoshima A, Ohmiya N, Kato T, Otsuji E, Nagata S, Hashiguchi Y, Sugihara K, Ajioka Y, Tanaka S. Clinicopathological features and prognosis of primary small bowel adenocarcinoma: a large multicenter analysis of the JSCCR database in Japan. J Gastroenterol 2024; 59:376-388. [PMID: 38411920 PMCID: PMC11033235 DOI: 10.1007/s00535-024-02081-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 01/18/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND The clinicopathological features and prognosis of primary small bowel adenocarcinoma (PSBA), excluding duodenal cancer, remain undetermined due to its rarity in Japan. METHODS We analyzed 354 patients with 358 PSBAs, between January 2008 and December 2017, at 44 institutions affiliated with the Japanese Society for Cancer of the Colon and Rectum. RESULTS The median age was 67 years (218 males, 61.6%). The average tumor size was 49.9 (7-100) mm. PSBA sites consisted of jejunum (66.2%) and ileum (30.4%). A total of 219 patients (61.9%) underwent diagnostic small bowel endoscopy, including single-balloon endoscopy, double-balloon endoscopy, and capsule endoscopy before treatment. Nineteen patients (5.4%) had Lynch syndrome, and 272 patients (76.8%) had symptoms at the initial diagnosis. The rates for stages 0, I, II, III, and IV were 5.4%, 2.5%, 27.1%, 26.0%, and 35.6%, respectively. The 5-year overall survival rates at each stage were 92.3%, 60.0%, 75.9%, 61.4%, and 25.5%, respectively, and the 5-year disease-specific survival (DSS) rates were 100%, 75.0%, 84.1%, 59.3%, and 25.6%, respectively. Patients with the PSBA located in the jejunum, with symptoms at the initial diagnosis or advanced clinical stage had a worse prognosis. However, multivariate analysis using Cox-hazard model revealed that clinical stage was the only significant predictor of DSS for patients with PSBA. CONCLUSIONS Of the patients with PSBA, 76.8% had symptoms at the initial diagnosis, which were often detected at an advanced stage. Detection during the early stages of PSBA is important to ensure a good prognosis.
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Affiliation(s)
- Ken Yamashita
- Department of Gastroenterology, Hiroshima University Hospital, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Shiro Oka
- Department of Gastroenterology, Hiroshima University Hospital, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan.
| | - Takeshi Yamada
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Tokyo, Japan
| | - Keigo Mitsui
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, Japan
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Keiichi Takahashi
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Akio Shiomi
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Toshio Kuwai
- Department of Gastroenterology, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Hiroshima, Japan
| | - Fumio Ishida
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Shin-Ei Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Shoichi Saito
- Department of Lower Gastrointestinal Medicine, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masashi Ueno
- Department of Gastroenterological Surgery, Toranomon Hospital, Tokyo, Japan
| | - Eiji Sunami
- Department of Surgery, Kyorin University School of Medicine, Tokyo, Japan
| | - Tomoki Yamano
- Division of Lower Gastrointestinal Surgery, Department of Surgery, Hyogo College of Medicine, Hyogo, Japan
| | - Michio Itabashi
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazuo Ohtsuka
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yusuke Kinugasa
- Department of Gastrointestinal Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayuki Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, Iwate Medical University, Iwate, Japan
| | - Tamotsu Sugai
- Department of Diagnostic Pathology, Iwate Medical University, Iwate, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Koichi Kurahara
- Division of Gastroenterology, Matsuyama Red Cross Hospital, Ehime, Japan
| | - Shigeki Yamaguchi
- Department of Gastroenterological Surgery, Saitama Medical University International Medical Center, Saitama, Japan
| | - Tomohiro Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masazumi Okajima
- Department of Surgery, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Hiroshi Kashida
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Yoshito Akagi
- Department of Surgery, Kurume University School of Medicine, Fukuoka, Japan
| | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Masaaki Ito
- Department of Colorectal Surgery, National Cancer Center Hospital East, Chiba, Japan
| | - Motohiro Esaki
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Masaya Kawai
- Department of Coloproctological Surgery, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Takashi Yao
- Department of Human Pathology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Madoka Hamada
- Department of Gastrointestinal Surgery, Kansai Medical University Hospital, Osaka, Japan
| | - Takahiro Horimatsu
- Department of Clinical Oncology, Kyoto University Hospital, Kyoto, Japan
| | - Keiji Koda
- Department of Surgery, Teikyo University Chiba Medical Center, Chiba, Japan
| | - Yasumori Fukai
- Department of Gastroenterology, Maebashi Red Cross Hospital, Gunma, Japan
| | - Koji Komori
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Aichi, Japan
| | - Yusuke Saitoh
- Department of Gastroenterology, Asahikawa City Hospital, Asahikawa, Hokkaido, Japan
| | - Yukihide Kanemitsu
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | | | - Kazutaka Yamada
- Department of Surgery, Coloproctology Center Takano Hospital, Kumamoto, Japan
| | - Hiroaki Nozawa
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kazutomo Togashi
- Department of Coloproctology, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
| | - Eiji Shinto
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Takehiro Torisu
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Akira Toyoshima
- Department of Colorectal Surgery, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Naoki Ohmiya
- Department of Advanced Endoscopy, Fujita Health University School of Medicine, Aichi, Japan
| | - Takeshi Kato
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Eigo Otsuji
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinji Nagata
- Department of Gastroenterology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan
| | - Yojiro Hashiguchi
- Department of Surgery, Japanese Red Cross Omori Hospital, Tokyo, Japan
| | | | - Yoichi Ajioka
- Division of Molecular and Diagnostic Pathology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Shinji Tanaka
- Department of Gastroenterology, Hiroshima University Hospital, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
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Amekura H, Chettah A, Narumi K, Chiba A, Hirano Y, Yamada K, Yamamoto S, Leino AA, Djurabekova F, Nordlund K, Ishikawa N, Okubo N, Saitoh Y. Latent ion tracks were finally observed in diamond. Nat Commun 2024; 15:1786. [PMID: 38413643 PMCID: PMC10899563 DOI: 10.1038/s41467-024-45934-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 02/08/2024] [Indexed: 02/29/2024] Open
Abstract
Injecting high-energy heavy ions in the electronic stopping regime into solids can create cylindrical damage zones called latent ion tracks. Although these tracks form in many materials, none have ever been observed in diamond, even when irradiated with high-energy GeV uranium ions. Here we report the first observation of ion track formation in diamond irradiated with 2-9 MeV C60 fullerene ions. Depending on the ion energy, the mean track length (diameter) changed from 17 (3.2) nm to 52 (7.1) nm. High resolution scanning transmission electron microscopy (HR-STEM) indicated the amorphization in the tracks, in which π-bonding signal from graphite was detected by the electron energy loss spectroscopy (EELS). Since the melting transition is not induced in diamond at atmospheric pressure, conventional inelastic thermal spike calculations cannot be applied. Two-temperature molecular dynamics simulations succeeded in the reproduction of both the track formation under MeV C60 irradiations and the no-track formation under GeV monoatomic ion irradiations.
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Affiliation(s)
- H Amekura
- National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, 305-0003, Japan.
| | - A Chettah
- Department of Physics, LGMM laboratory, University of 20 Août 1955-Skikda, BP 26, route d'El Hadaiek-Skikda, Skikda, 21000, Algeria
| | - K Narumi
- Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology (QST), Takasaki, Gumma, 370-1292, Japan
| | - A Chiba
- Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology (QST), Takasaki, Gumma, 370-1292, Japan
| | - Y Hirano
- Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology (QST), Takasaki, Gumma, 370-1292, Japan
| | - K Yamada
- Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology (QST), Takasaki, Gumma, 370-1292, Japan
| | - S Yamamoto
- Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology (QST), Takasaki, Gumma, 370-1292, Japan
| | - A A Leino
- Department of Physics and Helsinki Institute of Physics, University of Helsinki, PO Box 43, FI-00014, Helsinki, Finland
| | - F Djurabekova
- Department of Physics and Helsinki Institute of Physics, University of Helsinki, PO Box 43, FI-00014, Helsinki, Finland
| | - K Nordlund
- Department of Physics and Helsinki Institute of Physics, University of Helsinki, PO Box 43, FI-00014, Helsinki, Finland
| | - N Ishikawa
- Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki, 319-1195, Japan
| | - N Okubo
- Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki, 319-1195, Japan
| | - Y Saitoh
- Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology (QST), Takasaki, Gumma, 370-1292, Japan
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3
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Ouchi A, Komori K, Masahiro T, Toriyama K, Kajiwara Y, Oka S, Fukunaga Y, Hotta K, Ikematsu H, Tsukamoto S, Nagata S, Yamada K, Konno M, Ishihara S, Saitoh Y, Matsuda K, Togashi K, Ishiguro M, Kuwai T, Okuyama T, Ohuchi A, Ohnuma S, Sakamoto K, Sugai T, Katsumata K, Matsushita HO, Nakai K, Uraoka T, Akimoto N, Kobayashi H, Ajioka Y, Sugihara K, Ueno H. How Does Omitting Additional Surgery After Local Excision Affect the Prognostic Outcome of Patients With High-risk T1 Colorectal Cancer? Ann Surg 2024; 279:290-296. [PMID: 37669045 DOI: 10.1097/sla.0000000000006092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
OBJECTIVE To investigate how omitting additional surgery after local excision (LE) affects patient outcomes in high-risk T1 colorectal cancer (CRC). BACKGROUND It is debatable whether additional surgery should be performed for all patients with high-risk T1 CRC regardless of the tolerability of invasive procedures. METHODS Patients who had received LE for T1 CRC at the Japanese Society for Cancer of the Colon and Rectum institutions between 2009 and 2016 were analyzed. Those who had received additional surgical resection and those who did not were matched one-on-one by the propensity score-matching method. A total of 401 propensity score-matched pairs were extracted from 1975 patients at 27 Japanese Society for Cancer of the Colon and Rectum institutions and were compared. RESULTS Regional lymph node metastasis was observed in 31 (7.7%) patients in the LE + surgery group. Comparatively, the incidence of oncologic adverse events was low in the LE-alone group, such as the 5-year cumulative risk of local recurrence (4.1%) or overall recurrence (5.5%). In addition, the difference in the 5-year cancer-specific survival between the LE + surgery and LE-alone groups was only 1.8% (99.7% and 97.9%, respectively), whereas the 5-year overall survival was significantly lower in the LE-alone group than in the LE + surgery group [88.5% vs 94.5%, respectively ( P = 0.002)]. CONCLUSIONS Those who had decided to omit additional surgery at the dedicated center for CRC treatment presented a small number of oncologic events and a satisfactory cancer-specific survival, which may suggest an important role of risk assessment regarding nononcologic adverse events to achieve a best practice for each individual with high-risk T1 tumors.
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Affiliation(s)
- Akira Ouchi
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Aichi, Japan
| | - Koji Komori
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Aichi, Japan
| | - Tajika Masahiro
- Department of Endoscopy, Aichi Cancer Center Hospital, Aichi, Japan
| | - Kazuhiro Toriyama
- Department of Pathology and Molecular Diagnostics, Aichi Cancer Center Hospital, Aichi, Japan
| | - Yoshiki Kajiwara
- Department of Surgery, National Defense Medical College, Tokorozawa, Japan
| | - Shiro Oka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Yosuke Fukunaga
- Department of Colorectal Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Sunto, Japan
| | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Shunsuke Tsukamoto
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Shinji Nagata
- Department of Gastroenterology, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | | | - Maki Konno
- Department of Gastroenterology, Tochigi Cancer Center, Utsunomiya, Japan
| | - Soichiro Ishihara
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Yusuke Saitoh
- Digestive Disease Center, Asahikawa City Hospital, Hokkaido, Japan
| | - Kenji Matsuda
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Kazutomo Togashi
- Department of Coloproctology, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
| | - Megumi Ishiguro
- Medical Innovation Promotion Center, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toshio Kuwai
- Department of Gastroenterology, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Takashi Okuyama
- Department of Surgery, Dokkyo Medical University Saitama Medical Center, Saitama, Japan
| | - Akihiro Ohuchi
- Department of Gastroenterology, School of Medicine, Kurume University, Fukuoka, Japan
| | - Shinobu Ohnuma
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuhiro Sakamoto
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Tamotsu Sugai
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Iwate, Japan
| | - Kenji Katsumata
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | | | - Keisuke Nakai
- Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Toshio Uraoka
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Naohiko Akimoto
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, Japan
| | | | - Yoichi Ajioka
- Division of Molecular and Diagnostic Pathology, Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
| | | | - Hideki Ueno
- Department of Surgery, National Defense Medical College, Tokorozawa, Japan
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4
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Nishikawa Y, Horimatsu T, Oka S, Yamada T, Mitsui K, Yamamoto H, Takahashi K, Shiomi A, Hotta K, Takeuchi Y, Kuwai T, Ishida F, Kudo SE, Saito S, Ueno M, Sunami E, Yamano T, Itabashi M, Ohtsuka K, Kinugasa Y, Matsumoto T, Sugai T, Uraoka T, Kurahara K, Yamaguchi S, Kato T, Okajima M, Kashida H, Fujita F, Ikematsu H, Ito M, Esaki M, Kawai M, Yao T, Hamada M, Koda K, Fukai Y, Komori K, Saitoh Y, Kanemitsu Y, Takamaru H, Yamada K, Nozawa H, Takayama T, Togashi K, Shinto E, Torisu T, Toyoshima A, Ohmiya N, Kato T, Otsuji E, Nagata S, Hashiguchi Y, Sugihara K, Ajioka Y, Tanaka S. Outcomes of Metastatic and Unresectable Small Bowel Adenocarcinoma in Japan According to the Treatment Strategy: A Nationwide Observational Study. JCO Glob Oncol 2024; 10:e2300392. [PMID: 38330276 PMCID: PMC10860990 DOI: 10.1200/go.23.00392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 11/20/2023] [Indexed: 02/10/2024] Open
Abstract
PURPOSE Limited information is available regarding the characteristics and outcomes of stage IV small bowel adenocarcinoma (SBA) in Japan. This study examined the clinical and pathological characteristics and outcomes according to the treatment strategies in patients with stage IV SBA. METHODS This retrospective observational study used the data of patients with jejunal or ileal adenocarcinoma collected by the Small Bowel Malignant Tumor Project of the Japanese Society for Cancer of the Colon and Rectum. Descriptive statistics were expressed as the mean (standard deviation) or median (range). Survival analysis was performed using Kaplan-Meier curves and pairwise log-rank tests. RESULTS Data from 128 patients were analyzed. The treatment strategies were chemotherapy alone (26 of 128, 20.3%), surgery alone (including palliative surgery; 21 of 128, 16.4%), surgery + chemotherapy (74 of 128, 57.8%), and best supportive care (7 of 128, 5.5%). The median (range) overall survival was 16 (0-125) months overall, and 11 (1-38) months, 8 (0-80) months, 18 (0-125) months, and 0 (0-1) months for the chemotherapy, surgery, surgery + chemotherapy, and best supportive care groups, respectively. Three main categories of chemotherapeutic regimen were used: a combination of fluoropyrimidine and oxaliplatin (F + Ox), fluoropyrimidine and irinotecan (F + Iri), and single-agent fluoropyrimidine. Among patients treated with chemotherapy, the median (range) OS was 16 (1-106) months overall, and 17 (1-87) months, 29 (7-39) months, and 16 (1-106) months in patients treated with fluoropyrimidine, F + Iri, and F + Ox, respectively. CONCLUSION Patients treated with surgery, chemotherapy, or both had a better prognosis than those who received best supportive care. Among patients who received chemotherapy, survival did not differ according to the chemotherapeutic regimen.
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Affiliation(s)
- Yoshitaka Nishikawa
- Department of Clinical Oncology, Kyoto University Hospital, Kyoto, Japan
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Takahiro Horimatsu
- Department of Clinical Oncology, Kyoto University Hospital, Kyoto, Japan
| | - Shiro Oka
- Department of Gastroenterology, Hiroshima University Hospital, Hiroshima, Japan
| | - Takeshi Yamada
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Tokyo, Japan
| | - Keigo Mitsui
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, Japan
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Keiichi Takahashi
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Akio Shiomi
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Toshio Kuwai
- Department of Gastroenterology, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Hiroshima, Japan
| | - Fumio Ishida
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Shin-Ei Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Shoichi Saito
- Department of Lower Gastrointestinal Medicine, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masashi Ueno
- Department of Gastroenterological and Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Eiji Sunami
- Department of Surgery, Kyorin University School of Medicine, Tokyo, Japan
| | - Tomoki Yamano
- Division of Lower Gastrointestinal Surgery, Department of Surgery, Hyogo College of Medicine, Hyogo, Japan
| | - Michio Itabashi
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazuo Ohtsuka
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yusuke Kinugasa
- Department of Gastrointestinal Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayuki Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, Iwate Medical University, Iwate, Japan
| | - Tamotsu Sugai
- Department of Diagnostic Pathology, Iwate Medical University, Iwate, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Koichi Kurahara
- Division of Gastroenterology, Matsuyama Red Cross Hospital, Ehime, Japan
| | - Shigeki Yamaguchi
- Department of Gastroenterological Surgery, Saitama Medical University International Medical Center, Saitama, Japan
| | - Tomohiro Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masazumi Okajima
- Department of Surgery, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Hiroshi Kashida
- Department of Gastroenterology and Hepatology, Kindai University, Osaka, Japan
| | - Fumihiko Fujita
- Department of Surgery, Kurume University School of Medicine, Fukuoka, Japan
| | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Masaaki Ito
- Department of Colorectal Surgery, National Cancer Center Hospital East, Chiba, Japan
| | - Motohiro Esaki
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Masaya Kawai
- Department of Coloproctological Surgery, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Takashi Yao
- Department of Human Pathology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Madoka Hamada
- Department of Gastrointestinal Surgery, Kansai Medical University Hospital, Osaka, Japan
| | - Keiji Koda
- Department of Surgery, Teikyo University Chiba Medical Center, Chiba, Japan
| | - Yasumori Fukai
- Department of Gastroenterology, Maebashi Red Cross Hospital, Gunma, Japan
| | - Koji Komori
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Aichi, Japan
| | - Yusuke Saitoh
- Department of Gastroenterology, Asahikawa City Hospital, Asahikawa, Japan
| | - Yukihide Kanemitsu
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | | | - Kazutaka Yamada
- Department of Surgery, Coloproctology Center Takano Hospital, Kumamoto, Japan
| | - Hiroaki Nozawa
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kazutomo Togashi
- Department of Coloproctology, Aizu Medical Center Fukushima Medical University, Fukushima, Japan
| | - Eiji Shinto
- Department of Surgery, National Defense Medical College, Tokorozawa, Japan
| | - Takehiro Torisu
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Akira Toyoshima
- Department of Colorectal Surgery, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Naoki Ohmiya
- Department of Advanced Endoscopy, Fujita Health University School of Medicine, Aichi, Japan
| | - Takeshi Kato
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Eigo Otsuji
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinji Nagata
- Department of Gastroenterology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan
| | - Yojiro Hashiguchi
- Department of Surgery, Japanese Red Cross Omori Hospital, Tokyo, Japan
| | | | - Yoichi Ajioka
- Division of Molecular and Diagnostic Pathology Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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5
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Abe T, Matsumoto S, Kunimoto M, Hachiro Y, Ota S, Ohara K, Inagaki M, Saitoh Y, Murakami M. Prevalence of Double Incontinence and Lower Urinary Tract Symptoms in Patients with Fecal Incontinence: A Single-center Observational Study. J Anus Rectum Colon 2024; 8:30-38. [PMID: 38313750 PMCID: PMC10831982 DOI: 10.23922/jarc.2023-040] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 11/05/2023] [Indexed: 02/06/2024] Open
Abstract
Objectives Double incontinence (DI), which is the co-occurrence of fecal incontinence (FI) and urinary incontinence (UI), increases with age and has a greater negative impact on the quality of life (QOL) than either incontinence alone. We aimed to assess lower urinary tract symptoms (LUTS) in patients with FI to elucidate the prevalence and characteristics of DI. Methods This study enrolled consecutive patients who visited our hospital with FI symptoms. FI was evaluated using the Cleveland Clinic Florida Fecal Incontinence Score (CCFIS). LUTS were assessed using the International Prostate Symptom Score (IPSS), QOL score (IPSS-QOL) and Overactive Bladder Symptom Score (OABSS). Results This study evaluated 140 patients (96 women [mean age: 70.7 years] and 44 men [mean age: 74.4 years]). The mean IPSS was significantly higher in men than in women (12.0 vs. 7.5, p = 0.003). A positive correlation was found between IPSS and CCFIS in women (r = 0.256, p = 0.012) but not in men. For both sexes, the older group (aged ≥70 years) had higher OABSS scores and more urge UI instances than the younger group (aged ≤69 years). Of the 140 patients with FI, 78 (55.7%) had DI, and DI was more common in women than in men (63.5% vs. 38.6%, p = 0.006). Conclusions The characteristics of LUTS and UI in patients with FI were comparable to those in the general population for both sexes; however, the prevalence of DI was much higher among patients with FI than that in the general population.
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Affiliation(s)
- Tatsuya Abe
- Department of Proctology, Kunimoto Hospital, Asahikawa, Japan
| | - Seiji Matsumoto
- Headquarters for Research Promotion, Asahikawa Medical University, Asahikawa, Japan
| | - Masao Kunimoto
- Department of Proctology, Kunimoto Hospital, Asahikawa, Japan
| | | | - Shigenori Ota
- Department of Proctology, Kunimoto Hospital, Asahikawa, Japan
| | - Kei Ohara
- Department of Proctology, Kunimoto Hospital, Asahikawa, Japan
| | | | - Yusuke Saitoh
- Department of Gastroenterology, Kunimoto Hospital, Asahikawa, Japan
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6
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Abe T, Kunimoto M, Hachiro Y, Ota S, Ohara K, Inagaki M, Saitoh Y, Murakami M. Long-term Efficacy and Safety of Controlled Manual Anal Dilatation in the Treatment of Chronic Anal Fissures: A Single-center Observational Study. J Anus Rectum Colon 2023; 7:250-257. [PMID: 37900697 PMCID: PMC10600265 DOI: 10.23922/jarc.2023-019] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 06/02/2023] [Indexed: 10/31/2023] Open
Abstract
Objectives Conventional anal dilatation for anal fissures has long been abandoned because of the high incidence of anal incontinence. However, less invasive and more precise dilation techniques have been developed that have shown high healing and low incontinence rates. This study aimed to evaluate the efficacy and safety of controlled anal dilatation (CAD) using a standardized maximum anal diameter. Methods This study included 523 patients who underwent CAD for chronic anal fissures between January 2010 and December 2014. CAD was performed under sacral epidural anesthesia. The index fingers of both hands were placed in the anus and dilated evenly in various directions. CAD was completed when the anus was dilated to the sixth scale (35 mm in diameter) using a caliber ruler. Results The mean anal scale size expanded from 3.1 to 5.8 (p<0.001). Non-healing was observed in nine patients (1.7%) at 1 month postoperatively, six of whom underwent additional CAD. The mean maximal anal resting pressure (mmHg) decreased from 90.2 to 79.7 at three months postoperatively (p<0.001). Postoperative complications were observed in 11 (2.1%) patients, of whom three patients with thrombosed hemorrhoids underwent resection. None of the patients complained of anal incontinence during the mean follow-up period of 16.6 months. The cumulative recurrence-free rates at three and five years were 87.9% and 69.2%, respectively. Conclusions CAD is technically simple and safe and can achieve reasonable long-term outcomes. Thus, CAD appears to be the preferred procedure for patients with chronic anal fissures who do not respond to conservative treatments.
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Affiliation(s)
- Tatsuya Abe
- Department of Proctology, Kunimoto Hospital, Asahikawa, Japan
| | - Masao Kunimoto
- Department of Proctology, Kunimoto Hospital, Asahikawa, Japan
| | | | - Shigenori Ota
- Department of Proctology, Kunimoto Hospital, Asahikawa, Japan
| | - Kei Ohara
- Department of Proctology, Kunimoto Hospital, Asahikawa, Japan
| | | | - Yusuke Saitoh
- Department of Gastroenterology, Kunimoto Hospital, Asahikawa, Japan
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7
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Kajiwara Y, Oka S, Tanaka S, Nakamura T, Saito S, Fukunaga Y, Takamatsu M, Kawachi H, Hotta K, Ikematsu H, Kojima M, Saito Y, Yamada M, Kanemitsu Y, Sekine S, Nagata S, Yamada K, Kobayashi N, Ishihara S, Saitoh Y, Matsuda K, Togashi K, Komori K, Ishiguro M, Kuwai T, Okuyama T, Ohuchi A, Ohnuma S, Sakamoto K, Sugai T, Katsumata K, Matsushita HO, Yamano HO, Eda H, Uraoka T, Akimoto N, Kobayashi H, Ajioka Y, Sugihara K, Ueno H. Nomogram as a novel predictive tool for lymph node metastasis in T1 colorectal cancer treated with endoscopic resection: A nationwide, multicenter study. Gastrointest Endosc 2023; 97:1119-1128.e5. [PMID: 36669574 DOI: 10.1016/j.gie.2023.01.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [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: 09/05/2022] [Revised: 12/09/2022] [Accepted: 01/01/2023] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND AIMS Since 2009, the Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines have been recommending tumor budding and submucosal invasion depth, in addition to lymphovascular invasion and tumor grade, to be included as risk factors for lymph node metastasis (LNM) in T1 colorectal carcinoma (CRC) patients. In this study, a novel nomogram was developed and validated using large-scale real-world data, including the JSCCR risk factors, to accurately evaluate the risk of LNM in T1 CRC. METHODS Data from 4,673 T1 CRC patients treated at 27 high-volume institutions between 2009 and 2016 were analyzed for LNM risk. To prepare a nonrandom split sample, the total cohort was divided into development and validation cohorts. Pathological findings were extracted from the medical records of each participating institution. The discrimination ability was measured using the concordance index, and the variability in each prediction was evaluated using calibration curves. RESULTS Six independent risk factors for LNM, including submucosal invasion depth and tumor budding, were identified in the development cohort and entered into a nomogram. The concordance index was 0.784 for the clinical calculator in the development cohort and 0.790 in the validation cohort. The calibration curve approached the 45-degree diagonal in the validation cohort. CONCLUSIONS This is the first nomogram to include submucosal invasion depth and tumor budding for use in routine pathological diagnosis based on data from a nationwide multi-institutional study. With this nomogram developed with real-world data decision-making for an appropriate treatment strategy for T1 CRC should improve.
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Affiliation(s)
- Yoshiki Kajiwara
- Department of Surgery, National Defense Medical College, Tokorozawa, Japan.
| | - Shiro Oka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinji Tanaka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Takahiro Nakamura
- Laboratory for Mathematics, National Defense Medical College, Tokorozawa, Japan
| | - Shoichi Saito
- Department of Lower Gastrointestinal Medicine, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yosuke Fukunaga
- Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Manabu Takamatsu
- Department of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiroshi Kawachi
- Department of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Motohiro Kojima
- Division of Pathology, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Masayoshi Yamada
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Yukihide Kanemitsu
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Shigeki Sekine
- Pathology and Clinical Laboratory Division, National Cancer Center Hospital, Tokyo, Japan
| | - Shinji Nagata
- Department of Gastroenterology, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | | | - Nozomu Kobayashi
- Department of Gastroenterology, Tochigi Cancer Center, Utsunomiya, Japan
| | - Soichiro Ishihara
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Yusuke Saitoh
- Digestive Disease Center, Asahikawa City Hospital, Hokkaido, Japan
| | - Kenji Matsuda
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Kazutomo Togashi
- Department of Coloproctology, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
| | - Koji Komori
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Megumi Ishiguro
- Medical Innovation Promotion Center, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toshio Kuwai
- Department of Gastroenterology, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Takashi Okuyama
- Department of Surgery, Dokkyo Medical University Saitama Medical Center, Saitama, Japan
| | - Akihiro Ohuchi
- Department of Gastroenterology, School of Medicine, Kurume University, Fukuoka, Japan
| | - Shinobu Ohnuma
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuhiro Sakamoto
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Tamotsu Sugai
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Iwate, Japan
| | - Kenji Katsumata
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | | | - Hiro-O Yamano
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hirotsugu Eda
- Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Toshio Uraoka
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Naohiko Akimoto
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, Japan
| | | | - Yoichi Ajioka
- Division of Molecular and Diagnostic Pathology, Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
| | | | - Hideki Ueno
- Department of Surgery, National Defense Medical College, Tokorozawa, Japan
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8
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Aikawa T, Miyazaki Y, Kihara S, Saitoh Y, Nishimura M, Stephan SL, Dewey CW. Vertebral stabilisation for thoracolumbar vertebral instability associated with cranial and caudal articular process anomalies in pugs: Seven cases (2010-2019). J Small Anim Pract 2022; 63:699-706. [PMID: 35577348 DOI: 10.1111/jsap.13505] [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: 10/24/2020] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To describe the diagnostic findings, surgical technique and outcomes in seven pugs with thoracolumbar vertebral instability due to articular process anomalies. MATERIALS AND METHODS Records (2010 to 2019) of pugs with thoracolumbar vertebral instability associated with articular process anomalies that underwent decompressive laminectomy and vertebral stabilisation were reviewed. Data on preoperative and postoperative neurologic status, diagnostic findings, surgical techniques and outcomes were retrieved. RESULTS Seven dogs were presented with ambulatory or non-ambulatory paraparesis. Caudal articular process anomalies (three dogs) and concomitant cranial and caudal articular process anomalies (four dogs) were noted. Myelography (six dogs) or magnetic resonance imaging (one dog) showed none to severe spinal cord compression. Dynamic myelography in six dogs demonstrated nine distinct sites of spinal cord dimension reduction positioned in extension and/or flexion (mean reduction: 16.0%, range: 8.5 to 24.0%). These dynamic compressions were located at sites with articular process anomalies (seven sites) and sites with no articular process anomalies (two sites). Vertebral instability was confirmed by intraoperative spinal manipulation in all dogs. All dogs remained ambulatory with improved (five dogs) or static (two dogs) neurological deficits at the last follow-up (median: 16 months; range: 1.5 to 66 months). CLINICAL SIGNIFICANCE Dynamic myelography and/or intraoperative spinal manipulation demonstrated vertebral instabilities at sites with or without articular process anomalies on imaging. Decompressive laminectomy with vertebral stabilisation resulted in long-term neurological improvement in most dogs.
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Affiliation(s)
- T Aikawa
- Department of Surgery, Aikawa Veterinary Medical Center, Tokyo, Japan
| | - Y Miyazaki
- Department of Surgery, Aikawa Veterinary Medical Center, Tokyo, Japan
| | - S Kihara
- Department of Surgery, Aikawa Veterinary Medical Center, Tokyo, Japan
| | - Y Saitoh
- Department of Surgery, Aikawa Veterinary Medical Center, Tokyo, Japan
| | - M Nishimura
- Department of Surgery, Aikawa Veterinary Medical Center, Tokyo, Japan
| | - S L Stephan
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, New York, USA
| | - C W Dewey
- Elemental Pet Vets, Freeville, New York, USA
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9
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Uraoka T, Takizawa K, Tanaka S, Kashida H, Saito Y, Yahagi N, Yamano HO, Saito S, Hisabe T, Yao T, Watanabe M, Yoshida M, Saitoh Y, Tsuruta O, Igarashi M, Toyonaga T, Ajioka Y, Fujimoto K, Inoue H. Guidelines for Colorectal Cold Polypectomy (supplement to "Guidelines for Colorectal Endoscopic Submucosal Dissection/Endoscopic Mucosal Resection"). Dig Endosc 2022; 34:668-675. [PMID: 35113465 DOI: 10.1111/den.14250] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 12/16/2021] [Revised: 01/12/2022] [Accepted: 01/27/2022] [Indexed: 02/08/2023]
Abstract
The Japan Gastroenterological Endoscopy Society published the second edition of the "Guidelines for Colorectal Endoscopic Submucosal Dissection/Endoscopic Mucosal Resection" in 2019 to clarify the indications for colorectal endoscopic mucosal resection (EMR) and endoscopic submucosal dissection and to ensure appropriate preoperative diagnoses as well as effective and safe endoscopic treatment in front-line clinical settings. Endoscopic resection with electrocautery, including polypectomy and EMR, is indicated for colorectal polyps. Recently, the number of facilities introducing and implementing cold polypectomy without electrocautery has increased. Herein, we establish supplementary guidelines for cold polypectomy. Considering that the level of evidence for each statement is limited, these supplementary guidelines must be verified in clinical practice.
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Affiliation(s)
- Toshio Uraoka
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Kohei Takizawa
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Shinji Tanaka
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | - Yutaka Saito
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Naohisa Yahagi
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Hiro-O Yamano
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Shoichi Saito
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Takashi Hisabe
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Takashi Yao
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | | | - Yusuke Saitoh
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Osamu Tsuruta
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | | | - Yoichi Ajioka
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | - Haruhiro Inoue
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
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10
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Matsuura M, Matsumoto T, Naito Y, Saitoh Y, Kanai T, Suzuki Y, Tanaka S, Ogata H, Hisamatsu T. Advanced endoscopy for the management of inflammatory digestive diseases: Review of the Japan Gastroenterological Endoscopy Society core session. Dig Endosc 2022; 34:729-735. [PMID: 35037317 DOI: 10.1111/den.14234] [Citation(s) in RCA: 2] [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: 10/15/2021] [Revised: 12/28/2021] [Accepted: 01/11/2022] [Indexed: 02/08/2023]
Abstract
A series of workshops entitled "Advanced endoscopy in the management of inflammatory digestive disease" was held at the 97th to 100th biannual meeting of the Japan Gastroenterological Endoscopy Society. During these core sessions, research findings concerning various endoscopic practices in the field of inflammatory bowel disease (IBD) were presented, and meaningful discussions were shared on the evolving role and future challenges of endoscopy in IBD. This article reviews these core sessions and discusses current topics on the role of endoscopy, focusing on the diagnosis, disease monitoring, mucosal healing assessments, cancer surveillance, and therapeutic interventions in IBD.
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Affiliation(s)
- Minoru Matsuura
- Department of Gastroenterology and Hepatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Takayuki Matsumoto
- Division of Gastroenterology, Department of Medicine, Iwate Medical University, Iwate, Japan
| | - Yuji Naito
- Department of Human Immunology and Nutrition Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yusuke Saitoh
- Digestive Disease Center, Asahikawa City Hospital, Hokkaido, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokyo, Japan
| | - Yasuo Suzuki
- Department of Gastroenterology, Toho University Sakura Medical Center, Chiba, Japan
| | - Shinji Tanaka
- Endoscopy and Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Haruhiko Ogata
- Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyo, Japan
| | - Tadakazu Hisamatsu
- Department of Gastroenterology and Hepatology, Kyorin University School of Medicine, Tokyo, Japan
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11
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Saitoh Y, Fujiya M. Colorectum: White-light and chromoendoscopy. Dig Endosc 2022; 34 Suppl 2:83-85. [PMID: 34623000 DOI: 10.1111/den.14150] [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: 02/08/2023]
Affiliation(s)
- Yusuke Saitoh
- Digestive Disease Center, Asahikawa City Hospital, Hokkaido, Japan
| | - Mikihiro Fujiya
- Gastroenterology and Endoscopy, Department of Medicine, Asahikawa Medical University, Hokkaido, Japan
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12
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Fujiwara H, Umetsu RY, Kuroda F, Miyawaki J, Kashiuchi T, Nishimoto K, Nagai K, Sekiyama A, Irizawa A, Takeda Y, Saitoh Y, Oguchi T, Harada Y, Suga S. Detecting halfmetallic electronic structures of spintronic materials in a magnetic field. Sci Rep 2021; 11:18654. [PMID: 34545160 PMCID: PMC8452713 DOI: 10.1038/s41598-021-97992-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/01/2021] [Indexed: 11/09/2022] Open
Abstract
Band-gap engineering is one of the fundamental techniques in semiconductor technology and also applicable in next generation spintronics using the spin degree of freedom. To fully utilize the spintronic materials, it is essential to optimize the spin-dependent electronic structures in the operando conditions by applying magnetic and/or electric fields. Here we present an advanced spectroscopic technique to probe the spin-polarized electronic structures by using magnetic circular dichroism (MCD) in resonant inelastic soft X-ray scattering (RIXS) under an external magnetic field. Thanks to the spin-selective dipole-allowed transitions in RIXS-MCD, we have successfully demonstrated the direct evidence of the perfectly spin-polarized electronic structures for the prototypical halfmetallic Heusller alloy \documentclass[12pt]{minimal}
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\begin{document}$$\hbox {Co}_2\hbox {MnSi}$$\end{document}Co2MnSi. RIXS-MCD is a promising tool to probe the spin-dependent carriers and band-gap induced in the buried magnetic layers in an element specific way under the operando conditions.
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Affiliation(s)
- H Fujiwara
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan.
| | - R Y Umetsu
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai, Miyagi, 980-8577, Japan.,Center for Spintronics Research Network, Tohoku University, 2-1-1 Katahira, Sendai, Miyagi, 980-8577, Japan.,Center for Science and Innovation in Spintronics, 2-1-1 Katahira, Sendai, Miyagi, 980-8577, Japan
| | - F Kuroda
- SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan
| | - J Miyawaki
- Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.,Synchrotron Radiation Research Organization, The University of Tokyo, 1-1-1 Koto, Sayo-cho, Sayo, Hyogo, 679-5148, Japan.,Institute for Advanced Synchrotron Light Source, National Institutes for Quantum and Radiological Science and Technology, 6-6-11 Aoba, Sendai, Miyagi, 980-8579, Japan
| | - T Kashiuchi
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - K Nishimoto
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - K Nagai
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - A Sekiyama
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - A Irizawa
- SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan
| | - Y Takeda
- Materials Sciences Research Center, Japan Atomic Energy Agency (JAEA), Sayo, Hyogo, 679-5148, Japan
| | - Y Saitoh
- Materials Sciences Research Center, Japan Atomic Energy Agency (JAEA), Sayo, Hyogo, 679-5148, Japan
| | - T Oguchi
- SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan.,Center for Spintronics Research Network, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Y Harada
- Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.,Synchrotron Radiation Research Organization, The University of Tokyo, 1-1-1 Koto, Sayo-cho, Sayo, Hyogo, 679-5148, Japan
| | - S Suga
- SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan.,Forschungszentrum Jülich, PGI-6, 52425, Jülich, Germany
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13
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Ueno N, Sugiyama Y, Kobayashi Y, Murakami Y, Iwama T, Sasaki T, Kunogi T, Takahashi K, Tanaka K, Ando K, Kashima S, Inaba Y, Moriichi K, Tanabe H, Taruishi M, Saitoh Y, Okumura T, Fujiya M. Fecal calprotectin is a useful biomarker for predicting the clinical outcome of granulocyte and monocyte adsorptive apheresis in ulcerative colitis patients: a prospective observation study. BMC Gastroenterol 2021; 21:316. [PMID: 34362299 PMCID: PMC8348877 DOI: 10.1186/s12876-021-01889-0] [Citation(s) in RCA: 4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 06/17/2021] [Indexed: 12/12/2022] Open
Abstract
Background Granulocyte and monocyte adsorptive apheresis (GMA) is widely used as a remission induction therapy for active ulcerative colitis (UC) patients. However, there are no available biomarkers for predicting the clinical outcome of GMA. We investigated the utility of Fecal calprotectin (FC) as a biomarker for predicting the clinical outcome during GMA therapy in active UC patients. Methods In this multicenter prospective observation study, all patients received 10 sessions of GMA, twice a week, for 5 consecutive weeks. FC was measured at entry, one week, two weeks, and at the end of GMA. Colonoscopy was performed at entry and after GMA. The clinical activity was assessed based on the partial Mayo score when FC was measured. Clinical remission (CR) was defined as a partial Mayo score of ≤ 2 and endoscopic remission (ER) was defined as Mayo endoscopic subscore of either 0 or 1. We analyzed the relationships between the clinical outcome (CR and ER) and the change in FC concentration. Result Twenty-six patients were included in this study. The overall CR and ER rates were 50.0% and 19.2%, respectively. After GMA, the median FC concentration in patients with ER was significantly lower than that in patients without ER (469 mg/kg vs. 3107 mg/kg, p = 0.03). When the cut-off value of FC concentration was set at 1150 mg/kg for assessing ER after GMA, the sensitivity and specificity were 0.8 and 0.81, respectively. The FC concentration had significantly decreased by one week. An ROC analysis demonstrated that the reduction rate of FC (ΔFC) at 1 week was the most accurate predictor of CR at the end of GMA (AUC = 0.852, P = 0.002). When the cut-off value of ΔFC was set at ≤ 40% at 1 week for predicting CR at the end of GMA, the sensitivity and specificity were 76.9% and 84.6%, respectively. Conclusion We evaluated the utility of FC as a biomarker for assessing ER after GMA and predicting CR in the early phase during GMA in patients with active UC. Our findings will benefit patients with active UC by allowing them to avoid unnecessary invasive procedures and will help establish new strategies for GMA.
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Affiliation(s)
- Nobuhiro Ueno
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan.
| | - Yuya Sugiyama
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Yu Kobayashi
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Yuki Murakami
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Takuya Iwama
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Takahiro Sasaki
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Takehito Kunogi
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Keitaro Takahashi
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Kazuyuki Tanaka
- Asahikawa Kosei General Hospital, Asahikawa, Hokkaido, Japan
| | - Katsuyoshi Ando
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Shin Kashima
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Yuhei Inaba
- Asahikawa City Hospital, Asahikawa, Hokkaido, Japan
| | - Kentaro Moriichi
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Hiroki Tanabe
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | | | | | - Toshikatsu Okumura
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
| | - Mikihiro Fujiya
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan
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14
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Tanaka S, Saitoh Y, Matsuda T, Igarashi M, Matsumoto T, Iwao Y, Suzuki Y, Nozaki R, Sugai T, Oka S, Itabashi M, Sugihara KI, Tsuruta O, Hirata I, Nishida H, Miwa H, Enomoto N, Shimosegawa T, Koike K. Evidence-based clinical practice guidelines for management of colorectal polyps. J Gastroenterol 2021; 56:323-335. [PMID: 33710392 PMCID: PMC8005396 DOI: 10.1007/s00535-021-01776-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/27/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND The Japanese Society of Gastroenterology (JSGE) published ''Daicho Polyp Shinryo Guideline 2014'' in Japanese and a part of this guideline was published in English as "Evidence-based clinical practice guidelines for management of colorectal polyps" in the Journal of Gastroenterology in 2015. A revised version of the Japanese-language guideline was published in 2020, and here we introduce a part of the contents of revised version. METHODS The guideline committee discussed and drew up a series of clinical questions (CQs). Recommendation statements for the CQs were limited to items with multiple therapeutic options. Items with established conclusions that had 100% agreement with previous guidelines (background questions) and items with no (or old) evidence that are topics for future research (future research questions: FRQs) were given descriptions only. To address the CQs and FRQs, PubMed, ICHUSHI, and other sources were searched for relevant articles published in English from 1983 to October 2018 and articles published in Japanese from 1983 to November 2018. The Japan Medical Library Association was also commissioned to search for relevant materials. Manual searches were performed for questions with insufficient online references. RESULTS The professional committee created 18 CQs and statements concerning the current concept and diagnosis/treatment of various colorectal polyps, including their epidemiology, screening, pathophysiology, definition and classification, diagnosis, management, practical treatment, complications, and surveillance after treatment, and other colorectal lesions (submucosal tumors, nonneoplastic polyps, polyposis, hereditary tumors, ulcerative colitis-associated tumors/carcinomas). CONCLUSIONS After evaluation by the moderators, evidence-based clinical practice guidelines for management of colorectal polyps were proposed for 2020. This report addresses the therapeutic related CQs introduced when formulating these guidelines.
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Affiliation(s)
- Shinji Tanaka
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan.
- Department of Endoscopy, Hiroshima University Hospital, 1-2-3 Minami-ku, KasumiHiroshima, 734-8551, Japan.
| | - Yusuke Saitoh
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Takahisa Matsuda
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Masahiro Igarashi
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Takayuki Matsumoto
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Yasushi Iwao
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Yasumoto Suzuki
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Ryoichi Nozaki
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Tamotsu Sugai
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Shiro Oka
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Michio Itabashi
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Ken-Ichi Sugihara
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Osamu Tsuruta
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Ichiro Hirata
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Hiroshi Nishida
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Hiroto Miwa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Nobuyuki Enomoto
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Tooru Shimosegawa
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
| | - Kazuhiko Koike
- Guidelines Committee for Creating and Evaluating the "Evidence-Based Clinical Practice Guidelines for Management of Colorectal Polyps", the Japanese Society of Gastroenterology (JSGE), 6F Shimbashi i-MARK Bldg., 2-6-2 Shimbashi, Minato-ku, Tokyo, 105-0004, Japan
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15
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Amekura H, Toulemonde M, Narumi K, Li R, Chiba A, Hirano Y, Yamada K, Yamamoto S, Ishikawa N, Okubo N, Saitoh Y. Ion tracks in silicon formed by much lower energy deposition than the track formation threshold. Sci Rep 2021; 11:185. [PMID: 33420182 PMCID: PMC7794553 DOI: 10.1038/s41598-020-80360-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 12/15/2020] [Indexed: 11/09/2022] Open
Abstract
Damaged regions of cylindrical shapes called ion tracks, typically in nano-meters wide and tens micro-meters long, are formed along the ion trajectories in many insulators, when high energy ions in the electronic stopping regime are injected. In most cases, the ion tracks were assumed as consequences of dense electronic energy deposition from the high energy ions, except some cases where the synergy effect with the nuclear energy deposition plays an important role. In crystalline Si (c-Si), no tracks have been observed with any monomer ions up to GeV. Tracks are formed in c-Si under 40 MeV fullerene (C60) cluster ion irradiation, which provides much higher energy deposition than monomer ions. The track diameter decreases with decreasing the ion energy until they disappear at an extrapolated value of ~ 17 MeV. However, here we report the track formation of 10 nm in diameter under C60 ion irradiation of 6 MeV, i.e., much lower than the extrapolated threshold. The diameters of 10 nm were comparable to those under 40 MeV C60 irradiation. Furthermore, the tracks formed by 6 MeV C60 irradiation consisted of damaged crystalline, while those formed by 40 MeV C60 irradiation were amorphous. The track formation was observed down to 1 MeV and probably lower with decreasing the track diameters. The track lengths were much shorter than those expected from the drop of Se below the threshold. These track formations at such low energies cannot be explained by the conventional purely electronic energy deposition mechanism, indicating another origin, e.g., the synergy effect between the electronic and nuclear energy depositions, or dual transitions of transient melting and boiling.
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Affiliation(s)
- H Amekura
- National Institute for Materials Science (NIMS), Tsukuba, Japan.
| | | | - K Narumi
- National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki, Japan
| | - R Li
- National Institute for Materials Science (NIMS), Tsukuba, Japan.,Shandong University, Jinan, China
| | - A Chiba
- National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki, Japan
| | - Y Hirano
- National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki, Japan
| | - K Yamada
- National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki, Japan
| | - S Yamamoto
- National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki, Japan
| | - N Ishikawa
- Japan Atomic Energy Agency, Tokai, Japan
| | - N Okubo
- Japan Atomic Energy Agency, Tokai, Japan
| | - Y Saitoh
- National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki, Japan
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16
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Saitoh Y, Miyazaki M, Tsuru A, Takahashi Y. REM sleep without atonia affects sleep architecture in multiple system atrophy. Parkinsonism Relat Disord 2020. [DOI: 10.1016/j.parkreldis.2020.06.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Shikin AM, Estyunin DA, Klimovskikh II, Filnov SO, Schwier EF, Kumar S, Miyamoto K, Okuda T, Kimura A, Kuroda K, Yaji K, Shin S, Takeda Y, Saitoh Y, Aliev ZS, Mamedov NT, Amiraslanov IR, Babanly MB, Otrokov MM, Eremeev SV, Chulkov EV. Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator [Formula: see text]. Sci Rep 2020; 10:13226. [PMID: 32764583 PMCID: PMC7413556 DOI: 10.1038/s41598-020-70089-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/22/2020] [Indexed: 11/09/2022] Open
Abstract
Modification of the gap at the Dirac point (DP) in axion antiferromagnetic topological insulator [Formula: see text] and its electronic and spin structure have been studied by angle- and spin-resolved photoemission spectroscopy (ARPES) under laser excitation at various temperatures (9-35 K), light polarizations and photon energies. We have distinguished both large (60-70 meV) and reduced ([Formula: see text]) gaps at the DP in the ARPES dispersions, which remain open above the Neél temperature ([Formula: see text]). We propose that the gap above [Formula: see text] remains open due to a short-range magnetic field generated by chiral spin fluctuations. Spin-resolved ARPES, XMCD and circular dichroism ARPES measurements show a surface ferromagnetic ordering for the "large gap" sample and apparently significantly reduced effective magnetic moment for the "reduced gap" sample. These observations can be explained by a shift of the Dirac cone (DC) state localization towards the second Mn layer due to structural disturbance and surface relaxation effects, where DC state is influenced by compensated opposite magnetic moments. As we have shown by means of ab-initio calculations surface structural modification can result in a significant modulation of the DP gap.
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Affiliation(s)
- A. M. Shikin
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - D. A. Estyunin
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | | | - S. O. Filnov
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - E. F. Schwier
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - S. Kumar
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - K. Miyamoto
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - T. Okuda
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - A. Kimura
- Department of Physical Sciences, Graduate School of Science, Hiroshima University, Hiroshima, Japan
| | - K. Kuroda
- ISSP, University of Tokyo, Kashiwa, Chiba 277-8581 Japan
| | - K. Yaji
- ISSP, University of Tokyo, Kashiwa, Chiba 277-8581 Japan
| | - S. Shin
- ISSP, University of Tokyo, Kashiwa, Chiba 277-8581 Japan
| | - Y. Takeda
- Materials Sciences Research Center, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148 Japan
| | - Y. Saitoh
- Materials Sciences Research Center, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148 Japan
| | - Z. S. Aliev
- Azerbaijan State Oil and Industry University, AZ1010 Baku, Azerbaijan
- Institute of Physics, ANAS, AZ1143 Baku, Azerbaijan
| | | | - I. R. Amiraslanov
- Institute of Physics, ANAS, AZ1143 Baku, Azerbaijan
- Baku State University, AZ1148 Baku, Azerbaijan
| | - M. B. Babanly
- Baku State University, AZ1148 Baku, Azerbaijan
- Institute of Catalysis and Inorganic Chemistry, ANAS, AZ1143 Baku, Azerbaijan
| | - M. M. Otrokov
- Centro de Física de Materiales (CFM-MPC), Centro Mixto CSIC-UPV/EHU, 20018 Donostia-San Sebastián, Basque Country Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Basque Country Spain
| | - S. V. Eremeev
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
- Institute of Strength Physics and Materials Science, 634055 Tomsk, Russia
- Tomsk State University, 634050 Tomsk, Russia
| | - E. V. Chulkov
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
- Tomsk State University, 634050 Tomsk, Russia
- Donostia International Physics Center (DIPC), 20018 Donostia-San Sebastián, Basque Country Spain
- Departamento de Física de Materiales, Facultad de Ciencias Químicas, UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain
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18
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Li R, Narumi K, Chiba A, Hirano Y, Tsuya D, Yamamoto S, Saitoh Y, Okubo N, Ishikawa N, Pang C, Chen F, Amekura H. Matrix-material dependence on the elongation of embedded gold nanoparticles induced by 4 MeV C 60 and 200 MeV Xe ion irradiation. Nanotechnology 2020; 31:265606. [PMID: 32155610 DOI: 10.1088/1361-6528/ab7e70] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report the elongation of embedded Au nanoparticles (NPs) in three different matrices, i.e. amorphous carbon (a-C), crystalline indium tin oxide (InxSn1-xOz; ITO) and crystalline calcium fluoride (CaF2), under irradiations of 4 MeV C60 + cluster ions and 200 MeV Xe14+ ions. Under 4 MeV C60 cluster irradiation, strong sputtering is induced in CaF2 layer so that the whole the layer was completely lost at a fluence of 5 × 1013 ions cm-2. Au NPs were partly observed in the SiO2, probably due to the recoil implantation. Amorphous carbon (a-C) layer exhibits low sputtering loss even under 4 MeV C60 irradiation. However, the elongation in a-C layer was low. While the ITO layer showed a certain decrease in thickness under 4 MeV C60 irradiation, large elongation of Au NPs was observed under both 4 MeV C60 and 200 MeV Xe irradiation. The ITO layer preserved the crystallinity even after large elongation was induced. This is the first report of the elongation of metal NPs in a crystalline matrix.
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Affiliation(s)
- R Li
- Hydrogen Materials Engineering Group, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0003, Japan. School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China
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19
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Tanaka S, Kashida H, Saito Y, Yahagi N, Yamano H, Saito S, Hisabe T, Yao T, Watanabe M, Yoshida M, Saitoh Y, Tsuruta O, Sugihara KI, Igarashi M, Toyonaga T, Ajioka Y, Kusunoki M, Koike K, Fujimoto K, Tajiri H. Japan Gastroenterological Endoscopy Society guidelines for colorectal endoscopic submucosal dissection/endoscopic mucosal resection. Dig Endosc 2020; 32:219-239. [PMID: 31566804 DOI: 10.1111/den.13545] [Citation(s) in RCA: 172] [Impact Index Per Article: 43.0] [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: 07/16/2019] [Revised: 09/13/2019] [Accepted: 09/26/2019] [Indexed: 12/13/2022]
Abstract
Suitable lesions for endoscopic treatment include not only early colorectal carcinomas but also several types of precarcinomatous adenomas. It is important to establish practical guidelines wherein preoperative diagnosis of colorectal neoplasia and selection of endoscopic treatment procedures are appropriately outlined and to ensure that actual endoscopic treatment is useful and safe in general hospitals when carried out in accordance with guidelines. In cooperation with the Japanese Society for Cancer of the Colon and Rectum, the Japanese Society of Coloproctology, and the Japanese Society of Gastroenterology, the Japan Gastroenterological Endoscopy Society compiled colorectal endoscopic submucosal dissection/endoscopic mucosal resection guidelines by using evidence-based methods in 2014. The first edition of these guidelines was published 5 years ago. Accordingly, we have published the second edition of these guidelines based on recent new knowledge and evidence.
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Affiliation(s)
- Shinji Tanaka
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan.,Japanese Society for Cancer of the Colon and Rectum, Tokyo, Japan.,Japanese Society of Coloproctology, Tokyo, Japan.,Japanese Society of Gastroenterology, Tokyo, Japan
| | | | - Yutaka Saito
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan.,Japanese Society for Cancer of the Colon and Rectum, Tokyo, Japan
| | - Naohisa Yahagi
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Hiroo Yamano
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Shoichi Saito
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Takashi Hisabe
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Takashi Yao
- Japanese Society for Cancer of the Colon and Rectum, Tokyo, Japan
| | - Masahiko Watanabe
- Japanese Society for Cancer of the Colon and Rectum, Tokyo, Japan.,Japanese Society of Coloproctology, Tokyo, Japan
| | - Masahiro Yoshida
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan.,Japanese Society of Gastroenterology, Tokyo, Japan
| | - Yusuke Saitoh
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Osamu Tsuruta
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | | | | | | | - Yoichi Ajioka
- Japanese Society for Cancer of the Colon and Rectum, Tokyo, Japan
| | | | | | | | - Hisao Tajiri
- Japan Gastroenterological Endoscopy Society, Tokyo, Japan
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20
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Kobayashi K, Tanaka S, Murakami Y, Ishikawa H, Sada M, Oka S, Saito Y, Iishi H, Kudo SE, Ikematsu H, Igarashi M, Saitoh Y, Inoue Y, Hisabe T, Tsuruta O, Sano Y, Yamano H, Shimizu S, Yahagi N, Matsuda K, Nakamura H, Fujii T, Sugihara K. Predictors of invasive cancer of large laterally spreading colorectal tumors: A multicenter study in Japan. JGH Open 2019; 4:83-89. [PMID: 32055702 PMCID: PMC7008164 DOI: 10.1002/jgh3.12222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/25/2019] [Accepted: 06/05/2019] [Indexed: 12/19/2022]
Abstract
Background and Aim Although colorectal laterally spreading tumors (LSTs) can be classified into four subtypes, the histopathological characteristics are known to differ among these subtypes. We therefore performed a logistic regression analysis to determine whether the risk of pathological T1 cancer of large colorectal LSTs can be predicted based on factors such as endoscopic findings in a large group of patients enrolled in a multicenter study in Japan. Methods In the main study, we assessed 1236 colorectal adenomas or early cancers that were classified as LSTs measuring 20 mm or more in diameter and treated endoscopically. Logistic regression analysis was performed to determine whether factors such as the subtype of LST could be used to predict the risk of pathological T1 cancer. A validation study of 356 large colorectal LSTs was conducted to confirm the validity of the results obtained in the main study. Results The locations and tumor diameter of the LSTs in the main study were found to differ significantly according to the LST subclassification (P < 0.001). The frequency of pathological T1 cancers was the highest at 36% of LST nongranular pseudodepressed type, followed by 14% of LST nongranular flat‐elevated type, 11% of LST granular nodular mixed type, and 3% of LST granular homogenous type lesions. The risk of pathological T1 cancer was significantly associated with LST subclassification and tumor diameter. The area under the curve (AUC) was high (0.743). In the validation study, the AUC was 0.573. Conclusions In patients with large colorectal LSTs resected endoscopically, the risk of pathological T1 cancer can be predicted on the basis of the LST subclassification and tumor diameter.
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Affiliation(s)
- Kiyonori Kobayashi
- Research and Development Center for New Medical Frontiers Kitasato University School of Medicine Kanagawa Japan
| | - Shinji Tanaka
- Department of Endoscopy Hiroshima University Hospital Hiroshima Japan
| | | | - Hideki Ishikawa
- Department of Molecular-Targeting Cancer Prevention, Graduate School of Medical Science Kyoto Prefectural University of Medicine Kyoto Japan
| | - Miwa Sada
- Department of Gastroenterology Kitasato University School of Medicine Kanagawa Japan
| | - Shiro Oka
- Department of Endoscopy Hiroshima University Hospital Hiroshima Japan
| | - Yutaka Saito
- Endoscopy Division National Cancer Center Hospital Tokyo Japan
| | - Hiroyasu Iishi
- Department of Gastroenterology Itami City Hospital Osaka Japan
| | - Shin-Ei Kudo
- Digestive Disease Center Showa University Northern Yokohama Hospital Kanagawa Japan
| | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy National Cancer Center Hospital East Chiba Japan
| | - Masahiro Igarashi
- Department of Endoscopy Cancer Institute Ariake Hospital Tokyo Japan
| | - Yusuke Saitoh
- Digestive Disease Center Asahikawa City Hospital Hokkaido Japan
| | - Yuji Inoue
- Institute of Gastroenterology Tokyo Women's Medical University Tokyo Japan
| | - Takashi Hisabe
- Department of Gastroenterology Fukuoka University Chikushi Hospital Fukuoka Japan
| | - Osamu Tsuruta
- Division of Gastroenterology, Department of Medicine Kurume University School of Medicine Fukuoka Japan
| | - Yasushi Sano
- Gastrointestinal Center Sano Hospital Hyogo Japan
| | - Hiroo Yamano
- Department of Gastroenterology Akita Red Cross Hospital Akita Japan
| | - Seiji Shimizu
- Department of Gastroenterology JR West Osaka Railway Hospital Osaka Japan
| | - Naohisa Yahagi
- Department of Gastroenterology, Toranomon Hospital and Cancer Center Keio University Tokyo Japan
| | - Keiji Matsuda
- Department of Surgery Teikyo University School of Medicine Tokyo Japan
| | - Hisashi Nakamura
- Department of Gastroenterology Akasaka Endoscopic Clinic Tokyo Japan
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21
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Kojima T, Aihara H, Kodashima Y, Makishima H, Nakiri S, Takada S, Shimada H, Ukai M, Ozga C, Holzapfel X, Schmidt P, Küstner-Wetekam C, Otto H, Bloβ D, Knie A, Ehresmann A, Yokoya A, Fujii K, Fukuda Y, Saitoh Y. NOVEL ANALYTICAL STUDY FOR REACTION INTERMEDIATES IN THE PRIMARY RADIATION INTERACTION OF DNA USING A SYNCHROTRON RADIATION-INDUCED LUMINESCENCE SPECTROSCOPY. Radiat Prot Dosimetry 2019; 183:32-35. [PMID: 30753692 DOI: 10.1093/rpd/ncy239] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Indexed: 06/09/2023]
Abstract
To identify the precise molecular processes to induce DNA lesions, we attempt a novel spectroscopy of X-ray induced luminescence (XIL) using soft X-ray synchrotron radiation, which is a non-destructive analysis of the reaction intermediates in the elementary reaction pathway of damage induction and self-organized restoration. Using a liquid micro-jet technique to introduce aqueous samples in a vacuum chamber, we measure UV-visible luminescence from nucleotide solution as a function of the soft X-ray energy from the nitrogen to oxygen K-edge region. The XIL intensities for the nucleotide solutions are significantly enhanced in the soft X-ray region (410-530 eV) which is ascribed to the K-shell excitation/ionization of nitrogen atoms in the nucleobases. Furthermore, the XIL spectra do not show any signature of X-ray absorption near-edge structure (XANES) of the nucleobases. This is because the luminescence intensities collected from the integral area of the micro-jet only reflect the quantum yield of luminescence of the absorbed X-ray into UV-visible light irrespective of the absorption cross sections, i.e. of XANES. Thus the present result is the first evidence of luminescence as a result of X-ray absorption of aqueous nucleotides.
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Affiliation(s)
- T Kojima
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo, Japan
| | - H Aihara
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo, Japan
| | - Y Kodashima
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo, Japan
| | - H Makishima
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo, Japan
| | - S Nakiri
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo, Japan
| | - S Takada
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo, Japan
| | - H Shimada
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo, Japan
| | - M Ukai
- Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei-shi, Tokyo, Japan
| | - C Ozga
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Str. 40, Kassel, Germany
| | - X Holzapfel
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Str. 40, Kassel, Germany
| | - Ph Schmidt
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Str. 40, Kassel, Germany
| | - C Küstner-Wetekam
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Str. 40, Kassel, Germany
| | - H Otto
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Str. 40, Kassel, Germany
| | - D Bloβ
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Str. 40, Kassel, Germany
| | - A Knie
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Str. 40, Kassel, Germany
| | - A Ehresmann
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology, University of Kassel, Heinrich-Plett Str. 40, Kassel, Germany
| | - A Yokoya
- Center of Quantum beam Science, National Institute for Quantum and Radiological Science (QST), Naka-gun, Ibaraki, Japan
| | - K Fujii
- Center of Quantum beam Science, National Institute for Quantum and Radiological Science (QST), Naka-gun, Ibaraki, Japan
| | - Y Fukuda
- Synchrotron Radiation Research Center, Japan Atomic Energy Agency (JAEA), Sayo-gun, Hyougo, Japan
| | - Y Saitoh
- Synchrotron Radiation Research Center, Japan Atomic Energy Agency (JAEA), Sayo-gun, Hyougo, Japan
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22
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Moriichi K, Fujiya M, Kobayashi Y, Murakami Y, Iwama T, Kunogi T, Sasaki T, Ijiri M, Takahashi K, Tanaka K, Sakatani A, Ando K, Nomura Y, Ueno N, Kashima S, Ikuta K, Tanabe H, Mizukami Y, Saitoh Y, Okumura T. Autofluorescence Imaging Reflects the Nuclear Enlargement of Tumor Cells as well as the Cell Proliferation Ability and Aberrant Status of the p53, Ki-67, and p16 Genes in Colon Neoplasms. Molecules 2019; 24:molecules24061106. [PMID: 30897785 PMCID: PMC6471796 DOI: 10.3390/molecules24061106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/14/2019] [Accepted: 03/15/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Autofluorescence imaging (AFI) is useful for diagnosing colon neoplasms, but what affects the AFI intensity remains unclear. This study investigated the association between AFI and the histological characteristics, aberrant methylation status, and aberrant expression in colon neoplasms. METHODS Fifty-three patients with colorectal neoplasms who underwent AFI were enrolled. The AFI intensity (F index) was compared with the pathological findings and gene alterations. The F index was calculated using an image analysis software program. The pathological findings were assessed by the tumor crypt density, cell densities, and N/C ratio. The aberrant methylation of p16, E-cadherin, Apc, Runx3, and hMLH1 genes was determined by a methylation-specific polymerase chain reaction. The aberrant expression of p53 and Ki-67 was evaluated by immunohistochemical staining. RESULTS An increased N/C ratio, the aberrant expression of p53, Ki-67, and the altered methylation of p16 went together with a lower F index. The other pathological findings and the methylation status showed no association with the F index. CONCLUSIONS AFI reflects the nuclear enlargement of tumor cells, the cell proliferation ability, and the altered status of cell proliferation-related genes, indicating that AFI is a useful and practical method for predicting the dysplastic grade of tumor cells and cell proliferation.
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Affiliation(s)
- Kentaro Moriichi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Mikihiro Fujiya
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Yu Kobayashi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Yuki Murakami
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Takuya Iwama
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Takehito Kunogi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Takahiro Sasaki
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Masami Ijiri
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Keitaro Takahashi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Kazuyuki Tanaka
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Aki Sakatani
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Katsuyoshi Ando
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Yoshiki Nomura
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Nobuhiro Ueno
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Shin Kashima
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Katsuya Ikuta
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Hiroki Tanabe
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Yusuke Mizukami
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Yusuke Saitoh
- Digestive Disease Center, Asahikawa City Hospital, Asahikawa 070-8610, Japan.
| | - Toshikatsu Okumura
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
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23
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Hosomi K, Mori N, Mano T, Kishima H, Saitoh Y. Exploratory study of optimal conditions of repetitive transcranial magnetic stimulation of the primary motor cortex for chronic pain. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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24
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Saitoh Y, Kaneda K, Tokunaga Y, Murakawa M. Retraction notice to “Infusion of amino acid enriched solution hastens recovery from neuromuscular block caused by vecuronium” [Br J Anaesth 2001; 86: 814–821]. Br J Anaesth 2019; 122:155. [DOI: 10.1016/j.bja.2018.11.006] [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: 10/27/2022] Open
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25
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Saitoh Y, Toyooka H, Amaha K. Retraction notice to "Recoveries of post-tetanic twitch and train-of-four responses after administration of vecuronium with different inhalation anaesthetics and neuroleptanaesthesia" [Br J Anaesth 1993; 70: 402-404]. Br J Anaesth 2018; 122:150. [PMID: 30579394 DOI: 10.1016/j.bja.2018.11.001] [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: 12/01/2022] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief of British Journal of Anaesthesia. The study is retracted for the following reasons: Statistical analysis suggests that the data may be fabricated. Y Saitoh provided a statement in a personal communication to a member of the editorial board of British Journal of Anaesthesia that the study was not approved by the Institutional Review Board and that no evidence exists to support the study findings. Additionally, the Japanese Society of Anesthesiologists has recommended retraction of this article: http://www.anesth.or.jp/english/pdf/news20170925.pdf.
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Affiliation(s)
- Y Saitoh
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
| | - H Toyooka
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
| | - K Amaha
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
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26
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Saitoh Y, Toyooka H, Amaha K. Retraction notice to "Relationship between post-tetanic twitch and single twitch response after administration of vecuronium" [Br J Anaesth 1993; 71: 443-444]. Br J Anaesth 2018; 122:151. [PMID: 30579395 DOI: 10.1016/j.bja.2018.11.002] [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: 11/25/2022] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief of British Journal of Anaesthesia. The study is retracted for the following reasons: Y Saitoh provided a statement in a personal communication to a member of the editorial board of British Journal of Anaesthesia that the study was not approved by the Institutional Review Board and that no evidence exists to support the study findings.
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Affiliation(s)
- Y Saitoh
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
| | - H Toyooka
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
| | - K Amaha
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
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27
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Saitoh Y, Kaneda K, Toyooka H, Amaha K. Retraction notice to "Post-tetanic count and single twitch height at the onset of reflex movement after administration of vecuronium under different types of anaesthesia" [Br J Anaesth 1994; 72: 688-690]. Br J Anaesth 2018; 122:152. [PMID: 30579396 DOI: 10.1016/j.bja.2018.11.003] [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: 10/27/2022] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief of British Journal of Anaesthesia. The study is retracted for the following reasons: Y Saitoh provided a statement in a personal communication to a member of the editorial board of British Journal of Anaesthesia that the study was not approved by the Institutional Review Board and that no evidence exists to support the study findings.
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Affiliation(s)
- Y Saitoh
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
| | - K Kaneda
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
| | - H Toyooka
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
| | - K Amaha
- Department of Anaesthesiology and Critical Care Medicine, Faculty of Medicine, Tokyo Medical and Dental University 5-45, Yushima, 1-Chome, Bunkyo-ku, Tokyo 113, Japan
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28
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Kuroda Y, Fujino Y, Morita A, Tanioka Y, Suzuki V, Kawamura T, Ku Y, Saitoh Y. Successful 96-hour preservation of the canine pancreas. Transpl Int 2018. [DOI: 10.1111/tri.1992.5.s1.388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Kuroda Y, Fujino Y, Morita A, Tanioka Y, Suzuki Y, Kawamura T, Ku Y, Saitoh Y. The mechanism of action of the two-layer (Euro-Collins' solution/perfluorochemical) cold storage method in canine pancreas preservation. Transpl Int 2018. [DOI: 10.1111/tri.1992.5.s1.391] [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: 11/26/2022]
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30
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Abstract
A review of the authors' experience on the use of Fluosol DA. This includes studies on animals and also clinical trials on patients.
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Affiliation(s)
- H. Ohyanagi
- First Department of Surgery, Kobe University, School of Medicine, Kobe, Japan
| | - Y. Saitoh
- First Department of Surgery, Kobe University, School of Medicine, Kobe, Japan
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31
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Oka S, Tanaka S, Sano Y, Saitoh Y, Shimoda R, Tajiri H. Advanced diagnostic endoscopy in the lower gastrointestinal tract: A review of JGES core sessions. Dig Endosc 2018; 30:192-197. [PMID: 29055071 DOI: 10.1111/den.12977] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 07/30/2017] [Accepted: 10/16/2017] [Indexed: 12/20/2022]
Abstract
At each of the 89th to the 92nd congresses of the Japan Gastroenterological Endoscopy Society, a series of featured discussion sessions concerning advanced diagnostic endoscopy in the lower gastrointestinal tract were presented. In total, 45 lectures were presented in this subject area. It was shown that, in recent years, several convenient and less invasive colonoscopic modalities have been developed. This review article summarizes these core sessions and the efficacy of the techniques discussed.
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Affiliation(s)
- Shiro Oka
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinji Tanaka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Yasushi Sano
- Gastrointestinal Center & Institute of Minimally-invasive Endoscopic Care (iMEC), Sano Hospital, Hyogo, Japan
| | - Yusuke Saitoh
- Digestive Disease Center, Asahikawa City Hospital, Asahikawa, Japan
| | - Ryo Shimoda
- Department of Internal Medicine and Gastrointestinal Endoscopy, Saga Medical School, Saga, Japan
| | - Hisao Tajiri
- Department of Innovative Interventional Endoscopy Research, The Jikei University School of Medicine, Tokyo, Japan
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32
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Abstract
Abstract:Multivariate analysis would be effective in finding the functional change from several variables obtained from multivariate biological signals. We applied this idea to the discrimination of sustained fatiguing contraction from negative ramp contraction. The time-series of eigenvalues were obtained from multidimensional biological variables by the Karhunen-Loève expansion. The results showed that, the first and second eigenvalues came close to each other during fatiguing contraction, whereas only the first eigenvalue was dominant during negative ramp contraction. Moreover, the factor loadings showed considerable difference between fatiguing contraction and negative ramp contraction. As a result, the muscular-fatigue-related functional change could be represented clearly by the time-series of proportions and factor loadings.
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33
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Saitoh Y, Kiryu T, Okamoto K, Sakai K, Hori J. Band-Suppressed Restoration of X-Ray Images Blurred by Body Movement. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1634282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Abstract:The restoration of X-ray images that have been blurred due to body movement are discussed. The observation system for these images is described using a mathematical model, and several restoration filters composed of a series of such models are proposed. These filters restore band-suppressed approximations of the original images. In addition, redundancy is introduced into these restoration filters in order to suppress additive noise. These filters are expanded to be applicable not only to parallel translations, but also to rotations by coordinate transformation. The proposed methods are applied to blurred X-ray images of a bone model of the elbow joint. The parameters of the restoration filter are estimated using a marker attached to the subject as a reference signal.
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34
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Lai YC, Ushio N, Rahman MM, Katanoda Y, Ogihara K, Naya Y, Moriyama A, Iwanaga T, Saitoh Y, Sogawa T, Sunaga T, Momoi Y, Izumi H, Miyoshi N, Endo Y, Fujiki M, Kawaguchi H, Miura N. Aberrant expression of microRNAs and the miR-1/MET pathway in canine hepatocellular carcinoma. Vet Comp Oncol 2018; 16:288-296. [DOI: 10.1111/vco.12379] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 11/16/2017] [Accepted: 11/30/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Y.-C. Lai
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
- The United Graduate School of Veterinary Science; Yamaguchi University; Yamaguchi Japan
| | - N. Ushio
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
- The United Graduate School of Veterinary Science; Yamaguchi University; Yamaguchi Japan
| | - M. M. Rahman
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
- The United Graduate School of Veterinary Science; Yamaguchi University; Yamaguchi Japan
| | - Y. Katanoda
- Laboratory of Veterinary Diagnostic Imaging, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - K. Ogihara
- Laboratory of Pathology, School of Life and Environmental Science; Azabu University; Sagamihara Japan
| | - Y. Naya
- Laboratory of Pathology, School of Life and Environmental Science; Azabu University; Sagamihara Japan
| | - A. Moriyama
- Drug Safety Research Laboratories; Shin Nippon Biomedical Laboratories, Ltd.; Kagoshima Japan
| | - T. Iwanaga
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - Y. Saitoh
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - T. Sogawa
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - T. Sunaga
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - Y. Momoi
- Laboratory of Veterinary Diagnostic Imaging, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - H. Izumi
- Drug Safety Research Laboratories; Shin Nippon Biomedical Laboratories, Ltd.; Kagoshima Japan
| | - N. Miyoshi
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - Y. Endo
- Laboratory of Small Animal Internal Medicine, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - M. Fujiki
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
| | - H. Kawaguchi
- Department of Hygiene and Health Promotion Medicine; Kagoshima University Graduate School of Medical and Dental Sciences; Kagoshima Japan
| | - N. Miura
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine; Kagoshima University; Kagoshima Japan
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35
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Saitoh Y, Murata M, Takahashi Y. Clinical relationship among anxiety, rapid eye movement sleep behavior disorder, and abnormal 123I-MIBG-scintigraphy in patients with Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Suzuki M, Neumann A, Saitoh Y, Fujikake N, Wada K, Sango K, Nagai Y. Improvement of misfolding protein-induced neurodegeneration by dietary restriction in drosophila. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2521] [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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37
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Hunuk B, Mugnai G, De Asmundis C, Velagic V, Saitoh Y, Cioconte G, Irfan G, Stroker E, Hacioglu E, De Regibus V, Moran D, Coutino-Moreno H, Cagac O, Chierchia G, Brugada P. P2324A novel high risk ECG feature in Brugada Syndrome Probands: Localized QRS prolongation on right precordial leads. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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38
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Hagihara Y, Saitoh Y, Iwata H, Taki T, Hirano S, Arita N, Hayakawa T. Transplantation of Xenogeneic Cells Secreting β-Endorphin for Pain Treatment: Analysis of the Ability of Components of Complement to Penetrate through Polymer Capsules. Cell Transplant 2017; 6:527-30. [PMID: 9331506 DOI: 10.1177/096368979700600515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The permeation of components of complement and secreted peptides through polymer capsules (PM30, K6305, and K5708) were examined. To analyze permeability by complement, the degree of hemolysis of sensitized sheep erythrocytes (EA) (1 × 109/ml) enclosed in each type of capsule was examined after 24-h incubation in culture medium containing 10% human serum. PM30 and K6305 prevented the permeation of complement well, while K5708 did not. EA suspended in alginate prevented hemolysis even in K5708. Peptide permeation through the capsules was assessed by measuring the concentration of ACTH secreted by proopiomelanocortin (POMC)-gene-transfected-Neuro2A in the culture medium on days 4, 7, 14, 21, and 28 after encapsulation. The ACTH levels in the culture medium remained high until day 28. Alginate appeared to prevent the secretion, because ACTH levels decreased in alginate-suspended cells after day 14. The PM30-K6305 double capsules containing cell lines, Neuro2A, BHK21 (hamster fibroblasts), L929 (mouse fibroblasts), and HF-SKFII (human fibroblasts) were transplanted into the cerebrospinal fluid (CSF) space of the monkeys in the lumber region. The morphological examination showed the partial survival of Neuro2A, and BHK21 and HF-SKFII, which were cells concordant with the monkeys. On the other hand, L929 cells, which were discordant with the monkeys, could not survive at all. Because these results suggest that the complement components penetrate the polymer capsules, concordant cells are preferable for xenografting with polymer capsules into the CSF space.
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Affiliation(s)
- Y Hagihara
- Department of Neurosurgery, Osaka University Medical School, Japan
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Saitoh Y, Satomi K, Terasawa M, Kobayashi Y, Kaneyama J, Yazaki Y, De Asmundis C, Brugada P, Yamashina A, Chierchia GB. P347Correlation between compound motor action potential and femoral venous pressure waveform as novel phrenic nerve monitoring. Europace 2017. [DOI: 10.1093/ehjci/eux141.073] [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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Hirata K, Yamada K, Chiba A, Narumi K, Saitoh Y. Characterization of secondary ion emission processes of sub-MeV C 60 ion impacts via analysis of statistical distributions of the emitted ion number. J Chem Phys 2016; 145:234311. [PMID: 28010077 DOI: 10.1063/1.4972061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report probability distributions of the number of secondary ions (SIs) emitted by sub-MeV C60 ion impacts on an organic polymer target and the characterization of their emission processes through the analysis of the distributions. The probability distributions were obtained by analyzing experimental SI counting data obtained by a time-of-flight SI mass spectrometer combined with pulsed primary ion beams, using an analytical model developed to derive the distributions from the experimental data. A series of probability distribution functions was investigated for ion impacts of C60 with sub-MeV energies (0.12-0.54 MeV), which can provide sufficient SIs per impact to determine the functions. Their complicated and undefined SI emission processes were characterized based on the determined functions.
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Affiliation(s)
- K Hirata
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - K Yamada
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 1233 Watanuki, Takasaki, Gumma 370-1292, Japan
| | - A Chiba
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 1233 Watanuki, Takasaki, Gumma 370-1292, Japan
| | - K Narumi
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 1233 Watanuki, Takasaki, Gumma 370-1292, Japan
| | - Y Saitoh
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 1233 Watanuki, Takasaki, Gumma 370-1292, Japan
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Nihei N, Kanazawa T, Blas BL, Saitoh Y, Itagaki H, Pangilinan R, Matsuda H, Yasuraoka K. Soil factors influencing the distribution of Oncomelania quadrasi, the intermediate host of Schistosoma japonicum, on Bohol Island, Philippines. Annals of Tropical Medicine & Parasitology 2016. [DOI: 10.1080/00034983.1998.11813330] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Saitoh Y, Inaba Y, Sasaki T, Sugiyama R, Sukegawa R, Fujiya M. Management of colorectal T1 carcinoma treated by endoscopic resection. Dig Endosc 2016; 28:324-9. [PMID: 26076802 DOI: 10.1111/den.12503] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [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: 04/09/2015] [Revised: 06/05/2015] [Accepted: 06/08/2015] [Indexed: 12/28/2022]
Abstract
As a result of recent advances in endoscopic therapeutic technology, the number of endoscopic resections carried out in the treatment of early colorectal carcinomas with little risk of lymph node metastasis has increased. There are no reports of lymph node metastasis in intramucosal (Tis) carcinomas, whereas lymph node metastasis occurs in 6.8-17.8% of submucosal (T1) carcinomas. Three clinical guidelines have been published in Japan and the management strategy for early colorectal tumors has been demonstrated. According to the 2014 Japanese Society for Cancer of the Colon and Rectum (JSCCR) Guidelines for the Treatment of Colorectal Cancer, additional surgery should be done in cases of endoscopically resected T1 carcinoma with a histologically diagnosed positive vertical margin. Additional surgery may also be considered when one of the following histological findings is detected: (i) SM invasion depth ≥1000 µm; (ii) histological type por., sig., or muc.; (iii) grade 2-3 tumor budding; and (iv) positive vascular permeation. A resected lesion that is histologically diagnosed as a T1 carcinoma without any of the above-mentioned findings can be followed up without additional surgery. As for the prognosis of endoscopically resected T1 carcinomas, the relapse ratio of approximately 3.4% (44/1312) is relatively low. However, relapse is associated with a poor prognosis, with 72 cancer-related deaths reported out of 134 relapsed cases (54%). A more detailed stratification of the lymph node metastasis risk after endoscopic resection for T1 carcinomas and the prognosis of relapsed cases will be elucidated through prospective studies. Thereafter, the appropriate indications and safe and secure endoscopic resection for T1 carcinomas will be established.
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Affiliation(s)
- Yusuke Saitoh
- Digestive Disease Center, Asahikawa City Hospital, Japan
| | - Yuhei Inaba
- Digestive Disease Center, Asahikawa City Hospital, Japan
| | | | - Ryuji Sugiyama
- Digestive Disease Center, Asahikawa City Hospital, Japan
| | - Ryuji Sukegawa
- Digestive Disease Center, Asahikawa City Hospital, Japan
| | - Mikihiro Fujiya
- Division of Gastroenterology and Hematology/Oncology, Department of Internal Medicine, Asahikawa Medical University, Asahikawa, Japan
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Saitoh Y, Hosomi K, Nakamura H, Shimizu T. The Japanese rTMS experience – Present and future. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2015.11.122] [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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Shimizu T, Maruo T, Hosomi K, Goto Y, Yokoe M, Kageyama Y, Yanagisawa T, Oshino S, Kishima H, Yoshimine T, Saitoh Y. Efficacy of repetitive transcranial stimulation with H-coil for treatment of intractable neuropathic pain in lower extremities. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2015.11.089] [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: 11/25/2022]
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Moriichi K, Fujiya M, Ijiri M, Tanaka K, Sakatani A, Dokoshi T, Fujibayashi S, Ando K, Nomura Y, Ueno N, Kashima S, Gotoh T, Sasajima J, Inaba Y, Ito T, Tanabe H, Saitoh Y, Kohgo Y. Quantification of autofluorescence imaging can accurately and objectively assess the severity of ulcerative colitis. Int J Colorectal Dis 2015; 30:1639-43. [PMID: 26264047 DOI: 10.1007/s00384-015-2332-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/26/2015] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS No endoscopic examination has been able to evaluate severity of ulcerative colitis (UC) by quantification. This prospective study investigated the efficacy of quantifying autofluorescence imaging (AFI) to assess the severity of UC, which captures the fluorescence emitted from intestinal tissue and then quantifies the intensity using an image-analytical software program. MATERIALS AND METHODS Eleven endoscopists separately evaluated 135 images of conventional endoscopy (CE) and AFI from a same lesion. A CE image corresponding to Mayo endoscopic subscore 0 or 1 was defined as being inactive. The fluorescence intensities of AFI were quantified using an image-analytical software program (F index; FI). Active inflammation was defined when Matts' histological grade was 2 or more. A cut-off value of the FI for active inflammation was determined using a receiver operating characteristic (ROC) analysis. The inter-observer consistency was calculated by unweighted kappa statistics. RESULTS The correlation coefficient for the FI was inversely related to the histological severity (r = -0.558, p < 0.0001). The ROC analysis showed that the optimal cut-off value for the FI for active inflammation was 0.906. The average diagnostic accuracy of the FI was significantly higher than those of the CE (84.7 vs 78.5 %, p < 0.01). The kappa values for the inter-observer consistency of CE and the FI were 0.60 and 0.95 in all participants, 0.53 and 0.97 in the less-experienced endoscopists group and 0.67 and 0.93 in the expert group, respectively. CONCLUSIONS The quantified AFI is considered to be an accurate and objective indicator that can be used to assess the activity of ulcerative colitis, particularly for less-experienced endoscopists.
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Affiliation(s)
- Kentaro Moriichi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Mikihiro Fujiya
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan.
| | - Masami Ijiri
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Kazuyuki Tanaka
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Aki Sakatani
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Tatsuya Dokoshi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Shugo Fujibayashi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Katsuyoshi Ando
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Yoshiki Nomura
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Nobuhiro Ueno
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Shin Kashima
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Takuma Gotoh
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Junpei Sasajima
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Yuhei Inaba
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan.,Digestive Disease Center, Asahikawa City Hospital, Asahikawa, Hokkaido, Japan
| | - Takahiro Ito
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Hiroki Tanabe
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan.,Division of Gastroenterology, International University of Health and Wealfare Hospital, Nasushiobara, Tochigi, Japan
| | - Yusuke Saitoh
- Digestive Disease Center, Asahikawa City Hospital, Asahikawa, Hokkaido, Japan
| | - Yutaka Kohgo
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1 Midorigaoka-higashi, Asahikawa, Hokkaido, 078-8510, Japan.,Division of Gastroenterology, International University of Health and Wealfare Hospital, Nasushiobara, Tochigi, Japan
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Saitoh Y, Hamano A, Mochida K, Kakeya A, Uno M, Tsuruyama E, Ichikawa H, Tokunaga F, Utsunomiya A, Watanabe T, Yamaoka S. A20 targets caspase-8 and FADD to protect HTLV-I-infected cells. Leukemia 2015; 30:716-27. [PMID: 26437781 DOI: 10.1038/leu.2015.267] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 08/31/2015] [Accepted: 09/18/2015] [Indexed: 12/15/2022]
Abstract
Adult T-cell leukemia (ATL) arises from a human T-cell leukemia virus type I (HTLV-I)-infected cell and has few therapeutic options. Here, we have uncovered a previously unrecognized role for a ubiquitin-editing enzyme A20 in the survival of HTLV-I-infected cells. Unlike in lymphomas of the B-cell lineage, A20 is abundantly expressed in primary ATL cells without notable mutations. Depletion of A20 in HTLV-I-infected cells resulted in caspase activation, cell death induction and impaired tumorigenicity in mouse xenograft models. Mechanistically, A20 stably interacts with caspase-8 and Fas-associated via death domain (FADD) in HTLV-I-infected cells. Mutational studies revealed that A20 supports the growth of HTLV-I-infected cells independent of its catalytic functions and that the zinc-finger domains are required for the interaction with and regulation of caspases. These results indicate a pivotal role for A20 in the survival of HTLV-I-infected cells and implicate A20 as a potential therapeutic target in ATL.
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Affiliation(s)
- Y Saitoh
- Department of Molecular Virology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Hamano
- Department of Molecular Virology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - K Mochida
- Department of Molecular Virology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Kakeya
- Department of Molecular Virology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Uno
- Department of Molecular Virology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Comprehensive Reproductive Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - E Tsuruyama
- Department of Molecular Virology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - H Ichikawa
- Department of Molecular Virology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - F Tokunaga
- Laboratory of Molecular Cell Biology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - A Utsunomiya
- Department of Hematology, Imamura Bun-in Hospital, Kagoshima, Japan
| | - T Watanabe
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - S Yamaoka
- Department of Molecular Virology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
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Fujiya M, Sakatani A, Dokoshi T, Tanaka K, Ando K, Ueno N, Gotoh T, Kashima S, Tominaga M, Inaba Y, Ito T, Moriichi K, Tanabe H, Ikuta K, Ohtake T, Yokota K, Watari J, Saitoh Y, Kohgo Y. A Bamboo Joint-Like Appearance is a Characteristic Finding in the Upper Gastrointestinal Tract of Crohn's Disease Patients: A Case-Control Study. Medicine (Baltimore) 2015; 94:e1500. [PMID: 26376393 PMCID: PMC4635807 DOI: 10.1097/md.0000000000001500] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The clinical importance of Crohn's disease (CD)-specific lesions in the upper gastrointestinal tract (upper GIT) has not been sufficiently established. The aim of this case-control study is to investigate the characteristic findings of CD in the upper GIT. In 2740 patients who underwent gastroduodenoscopy at Asahikawa Medical University between April 2011 and December 2012, 81 CD patients, 81 gender- and age-matched non-IBD patients, and 66 ulcerative colitis (UC) patients were investigated in the present study. (1) The diagnostic ability and odds ratio of each endoscopic finding (a bamboo joint-like appearance in the cardia, erosions, and/or ulcers in the antrum, notched signs, and erosions and/or ulcers in the duodenum) were compared between the CD and non-IBD patients or UC patients. (2) The interobserver agreement of the diagnosis based on the endoscopic findings was evaluated by 3 experienced and 3 less-experienced endoscopists. The incidence of detecting a bamboo joint-like appearance, notched signs, and erosions and/or ulcers in the duodenum was significantly higher in the CD patients than in the non-IBD and UC patients. In addition, the diagnostic ability and odds ratio of a bamboo joint-like appearance for CD were higher than those for the other findings. Kendall's coefficients of concordance in the group of experienced and less-experienced endoscopists were relatively high for a bamboo joint-like appearance (0.748 and 0.692, respectively). A cardiac bamboo joint-like appearance is a useful finding for identifying high-risk groups of CD patients using only gastroduodenoscopy.
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Affiliation(s)
- Mikihiro Fujiya
- From the Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University (MF, AS, TD, KT, KA, NU, TG, SK, MT, YI, TI, KM, HT, KI, TO, YK); Department of Gastroenterology, Yoshida Hospital (KY); Division of Upper Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine (JW); and Digestive Disease Center, Asahikawa City Hospital (YS)
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Sekine Y, Saitoh Y, Koh E, Hata A, Suzuki H, Yoshino I. P-177CAN THE VERTEBRAL ARTERY BE SACRIFICED? TECHNICAL ASPECTS OF SUBCLAVIAN ARTERY RECONSTRUCTION FOR T4 LUNG CANCER. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.177] [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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Saitoh Y, Yoshimoto T, Kato S, Miwa N. Synergic carcinostatic effects of ascorbic acid and hyperthermia on Ehrlich ascites tumor cell. Exp Oncol 2015; 37:94-99. [PMID: 26112934] [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: 06/04/2023]
Abstract
AIM In this study, we evaluated the carcinostatic effects of combined ascorbic acid (AsA) and a capacitive-resistive electric transfer (CRet) hyperthermic apparatus-induced hyperthermic treatment on Ehrlich ascites tumor (EAT) cells. MATERIALS AND METHODS EAT cells were exposed to various AsA (0-10 mM) concentrations for 1 h; they subsequently underwent CRet treatment for 15 min at 42 °C. Cell viability was assessed by the WST-8 assay 24 h after the combined treatment. Reactive oxygen species involvement was evaluated using catalase and tempol; caspase-3/7 activation was determined by their fluorescent substrates; cell proliferation were estimated by time-lapse observation. The effect on the cell cycle was analyzed by flow cytometry. RESULTS Combined AsA and CRet treatment synergistically suppressed cell viability compared with either treatment alone, and these synergistically carcinostatic effects were evident even at noncytotoxic concentrations of AsA alone (≤ 2 mM). The carcinostatic effects of combined AsA and CRet treatment were attenuated in a dose-dependent manner by catalase addition, but not by the superoxide anion radical scavenger tempol. Time-lapse observation revealed that combined AsA and CRet treatment activated caspase-3/7 at 10-24 h after treatment, accompanied by significant cell growth suppression. Cell cycle analysis revealed that the rate of sub-G1-phase (apoptotic) cells was drastically increased at 12 h and 24 h, and that the G2/M-phase cells gradually increased at 6-24 h after treatment. CONCLUSION These results indicate that combined AsA and CRet treatment synergistically inhibits EAT cell growth through G2/M arrest and apoptosis induction via H2O2 generation at lower AsA concentrations; this carcinostatic effect cannot be exerted by AsA alone.
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Affiliation(s)
- Y Saitoh
- Laboratory of Bioscience & Biotechnology for Cell Function Control, Faculty of Life and Environmental Sciences, Prefectural University of Hiroshima, 562 Nanatsuka, Shobara, Hiroshima 727-0023, Jap
| | - T Yoshimoto
- Laboratory of Bioscience & Biotechnology for Cell Function Control, Faculty of Life and Environmental Sciences, Prefectural University of Hiroshima, 562 Nanatsuka, Shobara, Hiroshima 727-0023, Jap
| | - S Kato
- Radioisotope Facilities for Medical Science, Life Science Research Center, Mie University, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - N Miwa
- Department of Radiological Technology, Faculty of Health Sciences, Butsuryo College of Osaka, 3-33 Ohtorikita-machi, Sakai, Osaka 593-8324, Japan
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