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Miyamoto H, Shigeta K, Suda W, Ichihashi Y, Nihei N, Matsuura M, Tsuboi A, Tominaga N, Aono M, Sato M, Taguchi S, Nakaguma T, Tsuji N, Ishii C, Matsushita T, Shindo C, Ito T, Kato T, Kurotani A, Shima H, Moriya S, Wada S, Horiuchi S, Satoh T, Mori K, Nishiuchi T, Miyamoto H, Kodama H, Hattori M, Ohno H, Kikuchi J, Hirai MY. An agroecological structure model of compost-soil-plant interactions for sustainable organic farming. ISME Commun 2023; 3:28. [PMID: 37002405 PMCID: PMC10066230 DOI: 10.1038/s43705-023-00233-9] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 04/03/2023]
Abstract
Compost is used worldwide as a soil conditioner for crops, but its functions have still been explored. Here, the omics profiles of carrots were investigated, as a root vegetable plant model, in a field amended with compost fermented with thermophilic Bacillaceae for growth and quality indices. Exposure to compost significantly increased the productivity, antioxidant activity, color, and taste of the carrot root and altered the soil bacterial composition with the levels of characteristic metabolites of the leaf, root, and soil. Based on the data, structural equation modeling (SEM) estimated that amino acids, antioxidant activity, flavonoids and/or carotenoids in plants were optimally linked by exposure to compost. The SEM of the soil estimated that the genus Paenibacillus and nitrogen compounds were optimally involved during exposure. These estimates did not show a contradiction between the whole genomic analysis of compost-derived Paenibacillus isolates and the bioactivity data, inferring the presence of a complex cascade of plant growth-promoting effects and modulation of the nitrogen cycle by the compost itself. These observations have provided information on the qualitative indicators of compost in complex soil-plant interactions and offer a new perspective for chemically independent sustainable agriculture through the efficient use of natural nitrogen.
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Affiliation(s)
- Hirokuni Miyamoto
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, 271-8501, Japan.
- RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa, 230-0045, Japan.
- Sermas Co., Ltd., Ichikawa, Chiba, 272-0033, Japan.
- Japan Eco-science (Nikkan Kagaku) Co., Ltd., Chiba, Chiba, 260-0034, Japan.
| | | | - Wataru Suda
- RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa, 230-0045, Japan
| | | | - Naoto Nihei
- Faculty of Food and Agricultural Sciences, Fukushima University, Fukushima, Fukushima, 960-1296, Japan
| | - Makiko Matsuura
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, 271-8501, Japan
- Sermas Co., Ltd., Ichikawa, Chiba, 272-0033, Japan
| | - Arisa Tsuboi
- Japan Eco-science (Nikkan Kagaku) Co., Ltd., Chiba, Chiba, 260-0034, Japan
| | | | | | - Muneo Sato
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Shunya Taguchi
- Center for Frontier Medical Engineering, Chiba University, Chiba, Chiba, 263-8522, Japan
| | - Teruno Nakaguma
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, 271-8501, Japan
- Sermas Co., Ltd., Ichikawa, Chiba, 272-0033, Japan
- Japan Eco-science (Nikkan Kagaku) Co., Ltd., Chiba, Chiba, 260-0034, Japan
| | - Naoko Tsuji
- Sermas Co., Ltd., Ichikawa, Chiba, 272-0033, Japan
| | - Chitose Ishii
- RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa, 230-0045, Japan
- Sermas Co., Ltd., Ichikawa, Chiba, 272-0033, Japan
| | - Teruo Matsushita
- Sermas Co., Ltd., Ichikawa, Chiba, 272-0033, Japan
- Japan Eco-science (Nikkan Kagaku) Co., Ltd., Chiba, Chiba, 260-0034, Japan
| | - Chie Shindo
- RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Toshiaki Ito
- Keiyo Gas Energy Solution Co., Ltd., Ichikawa, Chiba, 272-0033, Japan
| | - Tamotsu Kato
- RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Atsushi Kurotani
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
- Research Center for Agricultural Information Technology, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-0856, Japan
| | - Hideaki Shima
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Shigeharu Moriya
- RIKEN, Center for Advanced Photonics, Wako, Saitama, 351-0198, Japan
| | - Satoshi Wada
- RIKEN, Center for Advanced Photonics, Wako, Saitama, 351-0198, Japan
| | - Sankichi Horiuchi
- Division of Gastroenterology and Hepatology, The Jikei University School of Medicine, Kashiwa Hospital, Kashiwa, Chiba, 277-8567, Japan
| | - Takashi Satoh
- Division of Hematology, Kitasato University School of Allied Health Sciences, Sagamihara, Kanagawa, 252-0373, Japan
| | - Kenichi Mori
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, 271-8501, Japan
- Sermas Co., Ltd., Ichikawa, Chiba, 272-0033, Japan
- Japan Eco-science (Nikkan Kagaku) Co., Ltd., Chiba, Chiba, 260-0034, Japan
| | - Takumi Nishiuchi
- Division of Integrated Omics research, Bioscience Core Facility, Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, Ishikawa, 920-8640, Japan
| | - Hisashi Miyamoto
- Sermas Co., Ltd., Ichikawa, Chiba, 272-0033, Japan
- Miroku Co., Ltd., Kitsuki, Oita, 873-0021, Japan
| | - Hiroaki Kodama
- Graduate School of Horticulture, Chiba University, Matsudo, Chiba, 271-8501, Japan
| | - Masahira Hattori
- RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa, 230-0045, Japan
- School of Advanced Science and Engineering, Waseda University, Tokyo, 169-8555, Japan
| | - Hiroshi Ohno
- RIKEN Center for Integrative Medical Science, Yokohama, Kanagawa, 230-0045, Japan
| | - Jun Kikuchi
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan.
| | - Masami Yokota Hirai
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan.
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Mizuno S, Okabayashi K, Ikebata A, Matsui S, Seishima R, Shigeta K, Kitagawa Y. Prediction of pouchitis after ileal pouch-anal anastomosis in patients with ulcerative colitis using artificial intelligence and deep learning. Tech Coloproctol 2022; 26:471-478. [PMID: 35233723 DOI: 10.1007/s10151-022-02602-3] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 02/16/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pouchitis is one of the major postoperative complications of ulcerative colitis (UC), and it is still difficult to predict the development of pouchitis after ileal pouch-anal anastomosis (IPAA) in UC patients. In this study, we examined whether a deep learning (DL) model could predict the development of pouchitis. METHODS UC patients who underwent two-stage restorative proctocolectomy with IPAA at Keio University Hospital were included in this retrospective analysis. The modified pouchitis disease activity index (mPDAI) was evaluated by the clinical and endoscopic findings. Pouchitis was defined as an mPDAI ≥ 5.860; endoscopic pouch images before ileostomy closure were collected. A convolutional neural network was used as the DL model, and the prediction rates of pouchitis after ileostomy closure were evaluated by fivefold cross-validation. RESULTS A total of 43 patients were included (24 males and 19 females, mean age 39.2 ± 13.2 years). Pouchitis occurred in 14 (33%) patients after ileostomy closure. In less than half of the patients, mPDAI scores matched before and after ileostomy closure. Most of patients whose mPDAI scores did not match before and after ileostomy closure had worse mPDAI scores after than before. The prediction rate of pouchitis calculated by the area under the curve using the DL model was 84%. Conversely, the prediction rate of pouchitis using mPDAI before ileostomy closure was 62%. CONCLUSION The prediction rate of pouchitis using the DL model was more than 20% higher than that using mPDAI, suggesting the utility of the DL model as a prediction model for the development of pouchitis. It could also be used to determine early interventions for pouchitis.
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Affiliation(s)
- S Mizuno
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - K Okabayashi
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - A Ikebata
- Department of Surgery, Saitama Medical Center, Saitama, Japan
| | - S Matsui
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - R Seishima
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - K Shigeta
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Y Kitagawa
- Department of Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
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Shigeta K, Kufukihara R, Ogihara K, Arita Y, Akita H, Suzuki T, Mizuno R, Kikuchi E, Jinzaki M, Oya M. Diagnostic performance of vesical imaging-reporting and data system for detecting muscle-invasive bladder cancer in real clinical setting: Comparison to diagnostic cystoscopy. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01108-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Shigeta K, Hasegawa M, Kosaka T, Hishiki T, Ryuichi M, Miyajima A, Suematsu M, Kikuchi E, Oya M. Isocitrate dehydrogenase 2 regulates intracellular metabolic reprogramming in chemo-resistant urothelial carcinoma. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00840-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Shigeta K, Matsumoto K, Yasumizu Y, Tanaka N, Takeda T, Kosaka T, Mizuno R, Kikuchi E, Oya M. Comparison of clinicopathological characteristics between primary muscle-invasive bladder cancer and secondary muscle invasive bladder recurrence subsequent to upper tract urothelial carcinoma. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01158-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Seishima R, Miyata H, Okabayashi K, Hasegawa H, Tsuruta M, Shigeta K, Monno M, Yamashita Y, Inomata M, Wakabayashi G, Kakeji Y, Kitagawa Y, Watanabe M. Safety and feasibility of laparoscopic surgery for elderly rectal cancer patients in Japan: a nationwide study. BJS Open 2021; 5:6220252. [PMID: 33839748 PMCID: PMC8038266 DOI: 10.1093/bjsopen/zrab007] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 01/14/2021] [Indexed: 11/30/2022] Open
Abstract
Background This study aimed to analyse the perioperative results from a national dataset of rectal cancer resections in elderly patients. Methods The clinical records of patients undergoing rectal cancer surgery between 2012 and 2014 were retrieved from the Japanese National Clinical Database and analysed retrospectively. Patients were categorized according to age and those 80 years or older were defined as elderly. Subgroups were also defined according to the surgical approach (laparoscopy versus open surgery). The short-term outcomes, including mortality, anastomotic leak, surgical site infections and medical complications were compared between subgroups. Results Of 56 175 patients undergoing rectal cancer surgery, some 6717 patients were elderly and laparoscopy was performed in 46.8 per cent of the sample. When comparing laparoscopy and open surgery in elderly patients, the operative mortality rate (1.5 versus 2.8 per cent; P < 0.001), the incidence of anastomotic leakage (5.2 versus 6.5 per cent; P = 0.026), surgical site infections (6.0 versus 8.0 per cent; P = 0.001), pneumonia (1.4 versus 2.5 per cent; P = 0.001), renal failure (0.7 versus 1.3 per cent; P = 0.016) and cardiac events (0.3 versus 0.8 per cent; P = 0.008) were lower for laparoscopy than for open surgery. The overall complication rate in elderly patients (19.5 per cent) was comparable to that in the younger group (P = 0.07). However, incidence of systemic complications was significantly higher in elderly than in younger patients (all P < 0.001). Conclusion Laparoscopy was safe and feasible in elderly patients compared with open surgery. However, the rates of systemic complications were significantly higher than in younger patients.
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Affiliation(s)
- R Seishima
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Miyata
- Department of Health Policy and Management, Keio University School of Medicine, Tokyo, Japan
| | - K Okabayashi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Hasegawa
- Department of Surgery, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
| | - M Tsuruta
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Shigeta
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - M Monno
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Y Yamashita
- Department of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - M Inomata
- Department of Gastroenterological and Pediatric Surgery, Faculty of Medicine, Oita University, Yufu, Japan
| | - G Wakabayashi
- Department of Surgery, Ageo Central General Hospital, Ageo, Japan
| | - Y Kakeji
- Division of Gastrointestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.,Database Committee, The Japanese Society of Gastroenterological Surgery
| | - Y Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.,The Japanese Society of Gastroenterological Surgery
| | - M Watanabe
- Department of Surgery, Kitasato University Kitasato Institute Hospital, Sagamihara, Japan
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Shigeta K, Matsumoto K, Yasumizu Y, Tanaka N, Takeda T, Morita S, Kosaka T, Mizuno R, Asanuma H, Oya M. Predicting the risk factors for muscle-invasive intravesical tumors that subsequently progressed from upper-tract urothelial carcinoma: Results of a multi-center cohort study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34090-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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8
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Shigeta K, Matsumoto K, Tanaka N, Murakami T, Anno T, Umeda K, Izawa M, Sanjo T, Yasumizu Y, Takeda T, Morita S, Kosaka T, Mizuno R, Asanuma H, Oya M. Evaluating the clinical efficacy of neoadjuvant chemotherapy for node-positive upper tract urothelial carcinoma: A multi-center cohort study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32768-3] [Citation(s) in RCA: 1] [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: 11/25/2022] Open
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9
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Shigeta K, Matsumoto K, Takeda T, Hattori S, Kaneko G, Matsushima M, Yasumizu Y, Tanaka N, Morita S, Kosaka T, Mizuno R, Asanuma H, Oya M. Comparing the oncological outcomes between pure laparoscopic radical nephroureterectomy and laparoscopic assisted nephroureterectomy for upper-tract urothelial carcinoma: A multi-center cohort study adjusted by propensity score matching. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32771-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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10
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Matsui S, Okabayashi K, Hasegawa H, Tsuruta M, Shigeta K, Ishida T, Yamada T, Kondo T, Yamauchi S, Sugihara K, Kitagawa Y. Effect of high ligation on survival of patients undergoing surgery for primary colorectal cancer and synchronous liver metastases. BJS Open 2020; 4:508-515. [PMID: 32243733 PMCID: PMC7260402 DOI: 10.1002/bjs5.50274] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/29/2020] [Accepted: 02/03/2020] [Indexed: 11/25/2022] Open
Abstract
Background Although R0 surgery is recommended for stage IV colorectal cancer, the degree of required lymphadenectomy has not been established. The aim of this study was to investigate the prognostic impact of high ligation (HL) of the feeding artery and the number of retrieved lymph nodes after R0 surgery for colorectal cancer and synchronous colorectal cancer liver metastasis (CRLM). Methods This was a multi‐institutional retrospective analysis of patients with colorectal cancer and synchronous CRLM who had R0 surgery between January 1997 and December 2007. Clinical and pathological features were compared in patients who underwent HL and those who had a low ligation (LL). Kaplan–Meier analysis was performed to estimate the effect of HL on overall survival (OS). The impact of several risk factors on survival was analysed using the Cox proportional hazards model. Results Of 549 patients, 409 (74·5 per cent) had HL. Median follow‐up was 51·4 months. HL significantly improved the 5‐year OS rate (58·2 per cent versus 49·3 per cent for LL; P = 0·017). Multivariable analysis revealed HL to be a significant prognostic factor compared with LL (5‐year mortality: hazard ratio (HR) 0·68, 95 per cent c.i. 0·51 to 0·90; P = 0·007). In subgroup analysis, the positive effect of HL on OS was greatest in patients with lymph node metastasis. Conclusion HL of the feeding artery was associated with improved OS in patients with colorectal cancer and synchronous CRLM after R0 surgery.
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Affiliation(s)
- S Matsui
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Okabayashi
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Hasegawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Surgery, Tokyo Dental College Ichikawa General Hospital, Chiba, Japan
| | - M Tsuruta
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Shigeta
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - T Ishida
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - T Yamada
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - T Kondo
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - S Yamauchi
- Department of Surgical Oncology, Tokyo Medical and Dental University, Tokyo, Japan
| | - K Sugihara
- Department of Surgical Oncology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
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Shigeta K, Kikuchi E, Abe T, Hagiwara M, Ogihara K, Tanaka N, Takeda T, Matsumoto K, Mizuno R, Oya M. A novel risk-based approach simulating oncologic surveillance according to smoking status after radical nephroureterectomy with upper tract urothelial carcinoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz425.001] [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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12
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Hayakawa N, Kikuchi E, Shigeta K, Mizuno R, Oya M. 452 Relationship between radiation doses and development of erectile dysfunction in patients treated with permanent prostate brachytherapy for localized prostate cancer. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.359] [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: 10/28/2022]
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13
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Harada M, Matsunaga A, Aoyama N, Abe Y, Yoneki K, Ishikawa R, Watanabe T, Shigeta K, Miyako Y, Kutsuna T, Matsuzawa R, Yoshida A. Decreased physical activity is associated with an increased incidence or progression of peripheral artery disease in hemodialysis patients. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Shigeta K, Matsunaga A, Toda N, Abe H, Matsumoto T, Miyako Y, Kimura M, Tsukimura Y, Akaishi M. Effects of chronic renal dysfunction on rehabilitation progress in patients undergoing inpatient rehabilitation. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Watanabe T, Matsunaga A, Abe Y, Yoneki K, Harada M, Ishikawa R, Shigeta K, Kutsuna T, Matsuzawa R, Yoshida A. Relationship between physical function and plantar pressure distribution in hemodialysis patients with peripheral neuropathy. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Yoneki K, Matsunaga A, Kitagawa J, Abe Y, Harada M, Ishikawa R, Watanabe T, Matsuzawa R, Kutsuna T, Shigeta K, Yoshida A. Association of habitual physical activity with bone metabolism in hemodialysis patients. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Abe H, Matsunaga A, Watanabe H, Toda N, Matsumoto T, Shigeta K, Tahara N, Saito Y, Tsukimura Y. Relationship between the severity of osteoarthritis of the knee and spino-pelvic alignment in Japanese patients with knee osteoarthritis. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Abe H, Watanabe H, Toda N, Matsumoto T, Shigeta K, Tsukimura Y, Saitou Y, Matsunaga A. Characteristics of spino-pelvic alignment in Japanese patients with end-stage knee osteoarthritis. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Fukumuro N, Nishiyama J, Shigeta K, Morimoto Y, Takagami H, Yae S, Matsuda H. Co–P multilayer film electrodeposited under DC electrolysis. Electrochem commun 2007. [DOI: 10.1016/j.elecom.2007.01.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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20
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Tone O, Tomita H, Tamaki M, Akimoto H, Shigeta K, Sampetrean O, Fujii M. Coil Embolization for Ruptured Cerebral Aneurysms of 2x3 mm Diameter. Interv Neuroradiol 2006; 12:97-100. [PMID: 20569610 DOI: 10.1177/15910199060120s114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2005] [Accepted: 12/15/2005] [Indexed: 11/15/2022] Open
Abstract
SUMMARY Small ruptured cerebral aneurysms, such as those of 2x3 mm diameter, are considered to be difficult to embolize by detachable coils because of the risk of procedural perforation of the aneurysms. We have treated these small aneurysms and report the techniques and pitfalls of these embolizations. Twenty-four patients with ruptured cerebral aneurysms of 2x3 mm diameter were intended for treatment by coil embolization. Before coil embolization, three-dimensional digital subtraction angiography was performed, and the simulation of the volume embolization ratio (VER) was performed in all patients, except for the first basilar artery aneurysm patient. The tip of the microcatheter was steam-shaped several times and was placed on the neck of the aneurysm. A balloon neck remodeling technique was used for two aneurysms. GDC 10 softs and soft SRs were used for the first ten aneurysms, and Ultrasofts were used for the last eleven aneurysms. Out of twentyfour aneurysm embolizations, we aborted the procedure in three cases, because of a failure in catheterization; we performed clipping surgery for these cases. For the first case of a basilar tip aneurysm, the aneurysm was perforated, due to the use of too long a coil and the insertion of the tip of the microcatheter into the aneurysmal dome. Minor infarction occurred in one patient. The mean VER was 33.9%, and two aneurysms recanalized, and out of these one needed a second embolization. Six months postoperatively, 81% of patients had made in a good recovery or had a moderate disability.We recommend the following techniques to embolize aneurysms of 2x3 mm diameter: the tip of the microcatheter should be stabilized on the aneurysmal neck by steam shaping of the microcatheter, GDC 10 soft and Ultrasoft should be selected for use, and the simulation of the VER should be performed before embolization to select coils of a suitable length.
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Affiliation(s)
- O Tone
- Department of Neurosurgery, Musashino Red Cross Hospital; Tokyo, Japan
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Nakamura M, Wang Y, Shigeta K, Shinozaki T, Taniguchi N, Itoh K. Simultaneous voiding cystourethrography and voiding urosonography: an in vitro and in vivo study. Clin Radiol 2002; 57:846-9. [PMID: 12384112] [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: 02/26/2023]
Abstract
AIM To compare the diagnostic accuracy of fluoroscopic voiding cystourethrography (VCUG) and voiding urosonography (VUS) under identical conditions. We performed VUS and VCUG simultaneously with the total time for both examinations taking no longer than the time required for either examination individually. MATERIALS AND METHODS X-ray contrast medium and echo-contrast agent were mixed together in vitro, and echogenicity of the mixture was confirmed. A clinical study was then performed on 33 children who had a history of urinary tract infection. The bladder was filled using simultaneous administration of X-ray contrast medium and echo-contrast agent. VCUG and VUS were then performed simultaneously and evaluated separately by two specialists. RESULTS Equivalent results were obtained for the two examinations in 61 of 66 renal tracts. Sensitivities of VUS and VCUG for the detection of VUR were 86% and 79%, respectively. The average time from catheterization to the completion of the study was 9.1 minutes - approximately as long as performing VCUG alone. CONCLUSIONS First, the present simultaneous study is superior to previous comparisons, because the two examinations were performed under identical physiologic conditions. Second, our results suggest that the two techniques demonstrate similar sensitivity in the detection of reflux.
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Affiliation(s)
- M Nakamura
- Department of Clinical Laboratory Medicine, Jichi Medical School, Minamikawachi, Tochigi, Japan.
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Nakamura M, Wang Y, Shigeta K, Shinozaki T, Taniguchi N, Itoh K. Simultaneous Voiding Cystourethrography and Voiding Urosonography: An In Vitro and In Vivo Study. Clin Radiol 2002. [DOI: 10.1053/crad.2002.0974] [Citation(s) in RCA: 4] [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: 11/11/2022]
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23
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Tatemoto H, Ootaki K, Shigeta K, Muto N. Enhancement of developmental competence after in vitro fertilization of porcine oocytes by treatment with ascorbic acid 2-O-alpha-glucoside during in vitro maturation. Biol Reprod 2001; 65:1800-6. [PMID: 11717144 DOI: 10.1095/biolreprod65.6.1800] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.2] [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: 11/01/2022] Open
Abstract
The present study was conducted to examine the effect of ascorbic acid 2-O-alpha-glucoside (AA-2G), a stable ascorbate derivative, on the sustenance of cytoplasmic maturation responsible for subsequent developmental competence after in vitro fertilization of porcine oocytes. Cumulus-oocyte complexes were cultured for 44 h in North Carolina State University 37 medium supplemented with cysteine, gonadotropins, 10% (v:v) porcine follicular fluid, and 0-750 microM AA-2G. When oocytes were matured in the presence of 250 microM AA-2G, their ability to promote transformation of the sperm nucleus into the male pronucleus (MPN) was strongly enhanced after in vitro fertilization. Similarly, the presence of 25 microM beta-mercaptoethanol (ME) enhanced the degree of progression to MPN of penetrated sperm by associating with the increase in intracellular glutathione (GSH) content. Although the AA-2G treatment during oocyte maturation showed no influence on the GSH concentration, significantly higher levels of ascorbic acid (AsA) were detected in these oocytes than in those oocytes cultured without AA-2G (P < 0.05). The length of DNA migration encompassed by reactive oxygen species (ROS), generated by the hypoxanthine-xanthine oxidase system, was not increased in the oocytes treated with AA-2G, whereas ME treatment could not block the DNA damage by ROS. These findings indicate that AA-2G in maturation medium can potentiate the cellular protection of oocytes against oxidative stress by continuously supplying AsA. The proportion of development to the blastocyst stage after in vitro insemination was significantly increased in oocytes matured with AA-2G (P < 0.05), and this proportion showed no difference in comparison with that of oocytes treated with ME. These findings suggest that a critical concentration of intracellular AsA, supplied by AA-2G during in vitro maturation, plays an important role in supporting the cytoplasmic maturation responsible for developmental competence after fertilization by prevention of oxidative stress against porcine oocytes.
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Affiliation(s)
- H Tatemoto
- School of Bioresources, Hiroshima Prefectural University, Shobara, Hiroshima 727-0023, Japan.
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24
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Kawano M, Kubo N, Taniguchi N, Nakamura M, Shibuya Y, Omoto K, Shigeta K, Yokota K, Ono T, Itoh K. [Responses to a questionnaire on laboratory examinations performed by graduates of Jichi Medical School in rural practice]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 2001; 49:911-6. [PMID: 11685780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Graduates from Jichi Medical School are obligated to work at rural clinics or hospitals, where most of them are the only medical doctor in the house. Our need to continuously improve medical education, including the learning that takes place in the clinical setting, requires us to understand how these graduates actually use laboratory examinations and what examinations they find most important in their practice. We designed a questionnaire to address these questions. Three hundred sixty-eight graduate physicians working at clinics or hospitals in both rural or urban areas were asked to complete the questionnaire, providing information on the size of their institution, the laboratory equipment and examinations that they have direct access to, and what examinations they find most important. Two hundred seventy-eight (75.5%) of the 368 recipients responded. More than seventy percent of the respondents reported that their institutions had electrocardiographs, abdominal and cardiac ultrasonographs, urinalysis test paper, and portable blood glucose meters; and more than half of them reported having used these instruments without assistance in emergency situations and outside of ordinary office hours. Moreover, a majority of the respondents said that they considered it important that a physician is able to use these instruments without the help of other staff members. These responses clearly show the importance and usefulness of covering examination techniques and the principles of laboratory medicine in medical education.
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Affiliation(s)
- M Kawano
- Department of Clinical Laboratory Medicine, Jichi Medical School, Tochigi 329-0498
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25
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Suenaga S, Abeyama K, Indo H, Shigeta K, Noikura T. Temporomandibular Disorders: MR Assessment of Inflammatory Changes in the Posterior Disk Attachment During the Menstrual Cycle. J Comput Assist Tomogr 2001; 25:476-81. [PMID: 11351201 DOI: 10.1097/00004728-200105000-00023] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE Our goal was to correlate the menstrual cycle with joint pain, MR evidence of the disk, and posterior disk attachment in patients with temporomandibular disorders. METHOD Forty-two women underwent MRI involving conventional T1-and T2-weighted gadolinium-enhanced fat-suppressed SE imaging sequences. RESULTS There was a strong statistical difference in the degree of joint pain between proliferated phase and secretory phase groups (p < 0.005). Joint pain had a tendency to increase at the secretory phase. Significantly less contrast enhancement of the posterior disk attachment was observed in the proliferated phase than in the secretory phase (p < 0.001) or menstrual phase (p < 0.01). In addition, anterior disk displacement without reduction of the temporomandibular joint was closely associated with joint pain. CONCLUSION Our results suggest that positional changes of the disk and the menstrual cycle may play a role in the degree of joint pain and inflammatory pathology of the posterior disk attachment.
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Affiliation(s)
- S Suenaga
- Department of Dental Radiology, Kagoshima University Dental School, Japan.
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26
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Suzuki K, Miyamoto M, Ikeda N, Shigeta K, Kouchi Y, Miyashita H. [Simultaneous surgery for unstable angina and gastric cancer: a case report]. Kyobu Geka 2001; 54:305-9. [PMID: 11296422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
This report describes a case in which an 81-year-old male underwent two operations simultaneously for unstable angina and gastric cancer. Successfully performed procedures were off pump CABG with bilateral IMA, and total gastrectomy. The post operative course was uneventful. Off pump CABG is an effective procedure in patient with malignant neoplasm.
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Affiliation(s)
- K Suzuki
- Department of Cardiovascular Surgery, Tokuyama Central Hospital, Yamaguchi, Japan
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27
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Taniguchi N, Itoh K, Wang Y, Omoto K, Shigeta K, Fujii Y, Namekawa M, Muramatsu S, Nakano I. Sonographic detection of diffuse peripheral nerve hypertrophy in chronic inflammatory demyelinating polyradiculoneuropathy. J Clin Ultrasound 2000; 28:488-491. [PMID: 11056027 DOI: 10.1002/1097-0096(200011/12)28:9<488::aid-jcu7>3.0.co;2-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Chronic inflammatory demyelinating polyradiculoneuropathy is an autoimmune disease characterized by recurrent demyelination and remyelination with resultant thickening of the peripheral nerves. We report a case in which sonography was instrumental in demonstrating diffuse peripheral nerve hypertrophy. On sonography, both brachial plexuses were found to be diffusely hypertrophic and hypoechoic. Similar findings were noted for the median, sciatic, and femoral nerves. The brachial plexus findings were confirmed by MRI.
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Affiliation(s)
- N Taniguchi
- Department of Clinical Pathology, Jichi Medical School, Yakushiji, Minamikawachi-machi, Kawachi-gun, Tochigi-ken 329-0498, Japan
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28
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Abstract
The effect of different types of added oil on the formation of a discontinuous micellar-type cubic phase was investigated in water-polyoxyethylene dodecyl ether (C(12)EO(25)) systems by phase study and small-angle X-ray scattering. The thermal stability of the cubic phase increases upon addition of oil, especially short-chain hydrocarbons. However, in the heptane system, the maximum melting temperature of the cubic phase is lower than that for decane due to the formation of a different liquid crystal phase. The effect of polyols on C(12)EO(25) cubic phases was also investigated. It was found that the thermal stability of the cubic phase decreases with polyol concentration. The destabilizing effect becomes large as the polyol molecule penetrates further into the surfactant palisade layer. Although the solubilization of oil in the cubic phase is very low, a large amount of excess oil can be incorporated and a transparent cubic-phase-based concentrated emulsion is formed. The transparency is attributed to the very small difference in the refractive indices between the cubic and excess-oil phases. Copyright 2000 Academic Press.
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Affiliation(s)
- C Rodríguez
- Division of Artificial Environments and Systems, Graduate School of Engineering, Yokohama National University, Tokiwadai 79-5, Hodogaya-ku, Yokohama, 240-8501, Japan
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29
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Abstract
Vascular endothelial growth factor (VEGF) is one of the major angiogenesis regulators. It binds to its tyrosine kinase receptors, KDR and Flt-1. However, little is known about their downstream signal transduction properties. We screened human brain cDNA library using the yeast two-hybrid system with the KDR cytoplasmic region as bait to find KDR binding proteins. After 6.2 x 10(6) clones were screened, we identified Sck, one of the Shc homologues, as a KDR binding protein. Sck also binds to Flt-1 and their binding is dependent on the kinase activities of KDR and Flt-1. Extensive site-directed mutagenesis of KDR revealed that Y1175 of KDR is a major binding site for Sck. As Sck contains the SH2 domain and PTB domain, we tested whether they bind to KDR and Flt-1. The SH2 domain of Sck binds to both of them. Deletion of the SH2 domain from Sck resulted in the complete loss of binding. On the other hand, the PTB domain of Sck does not bind to KDR and Flt-1. These results indicate that Sck binds to KDR and Flt-1 via its SH2 domain and might play an important role in VEGF signal transduction.
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Affiliation(s)
- K Igarashi
- Advanced Technology Research Laboratories, Nippon Steel Corporation, 3-35-1 Ida, Kawasaki, Nakahara-Ku, 211-0035, Japan.
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30
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Igarashi K, Shigeta K, Kohno S, Isohara T, Yamano T, Uno I. A novel indication of the activities of small molecule inhibitors of protein-protein interactions: application of the yeast two-hybrid system. J Antibiot (Tokyo) 1998; 51:886-8. [PMID: 9820241 DOI: 10.7164/antibiotics.51.886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- K Igarashi
- Life Science Research Center, Advanced Technology Research Laboratories, Nippon Steel Corporation, Kawasaki, Japan
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31
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Abstract
Vascular endothelial growth factor (VEGF) binds to its receptor tyrosine kinase Flt-1 and KDR/Flk-1 and stimulates their autophosphorylation. However, little is known about their downstream signal transduction properties. We examined the interactions of certain proteins with a SH2-domain with Flt-1 and KDR using the yeast two-hybrid system and found that Nck, SHP-2, PLC gamma, and PI3K p85 bind to Flt-1. Extensive site-directed mutagenesis of Flt-1 revealed their major binding sites. Nck, SHP-2, and PI3K bind to Y1213 of Flt-1. Nck also binds to Y1333 of Flt-1. These results suggest that Nck, SHP-2, PLC gamma, and PI3K play important roles in Flt-1 signal transduction and that Y1213 of Flt-1 is a major binding site of PI3K, Nck, and SHP-2.
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Affiliation(s)
- K Igarashi
- Life Science Research Center, Nippon Steel Corporation, Kawasaki, Japan.
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32
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Morinushi T, Kawasaki H, Masumoto Y, Shigeta K, Ogura T, Takigawa M. Examination of the diagnostic value and estimation of the chaos phenomenon in masticatory movement using fractal dimension in patients with temporomandibular dysfunction syndrome. J Oral Rehabil 1998; 25:386-94. [PMID: 9639164 DOI: 10.1046/j.1365-2842.1998.00230.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The aim of this study was to estimate the chaos phenomenon (chaos) in masticatory movements using the fractal dimension (FD), and to examine the diagnostic value of the fractal dimension in comparing stomatognathic functional disturbances with normal stomatognathic function. The subjects were all high school students and included nine subjects presenting with acceptable normal occlusion, 18 subjects with TMJ dysfunction syndrome and seven subjects with tooth crowding. Masticatory movements were obtained during free, right side, and left side gum-chewing and were used to calculate the capacity dimension in the FD. Chaos in the masticatory movement was estimated by the FD saturated with some constant value to an increase of embedding dimension (approached a plateau). In the crowding group, the FD was also significantly high on the sagittal plane in comparison with the normal. In the patients with pain, the FD on the sagittal plane was significantly high. In the patients with pain and closed lock, the FD on the frontal plane was significantly high. However, in the patients with pain and with reduction of anterior disc displacement, the FD was significantly low on the horizontal plane. These findings suggest that chaos is present in masticatory movements and the difference in the FD are of diagnostic value in evaluation of the relationship between FD and stomatognathic functional disturbance.
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Affiliation(s)
- T Morinushi
- Department of Pediatric Dentistry, Kagoshima University Dental School, Sakuragaoka, Japan
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33
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Kajihara K, Ishikawa H, Akama F, Ninomiya H, Shigeta K, Sano I, Nakamura Y, Iwasaki K. [A case of advanced gastric cancer with virchow's metastasis responding remarkably to combination chemotherapy of low-dose CDDP and 5-FU]. Gan To Kagaku Ryoho 1998; 25:585-8. [PMID: 9530367] [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: 02/07/2023]
Abstract
The patient was a 72-year-old female who had Stage IVb advanced gastric cancer with Virchow's and paraaortic lymph node metastases. She was considered nonresectable and placed on neoadjuvant chemotherapy consisting of low-dose CDDP and 5-FU. After 1 course of administration, Virchow's metastasis disappeared, and the tumor was remarkably reduced in size. However, this chemotherapy was interrupted by toxicity of grade 3 appetite loss, nausea and vomiting, so that total gastrectomy and splenectomy were performed, which were non-curative operation because of paraaortic lymph node metastases. Histopathological examination of the section of the primary tumor revealed that cancer cells had almost disappeared, and only a few atypical cells remained in the granulation tissue. Eleven months after the surgery, there has been no progression of Virchow's and paraaortic lymph node metastases. Combination chemotherapy of low-dose CDDP and 5-FU appears useful as an inductive approach to advanced gastric cancer.
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Affiliation(s)
- K Kajihara
- Dept. of Surgery, Sasebo City General Hospital
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34
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Maruyama I, Shigeta K, Miyahara H, Nakajima T, Shin H, Ide S, Kitajima I. Thrombin activates NF-kappa B through thrombin receptor and results in proliferation of vascular smooth muscle cells: role of thrombin in atherosclerosis and restenosis. Ann N Y Acad Sci 1997; 811:429-36. [PMID: 9186620 DOI: 10.1111/j.1749-6632.1997.tb52024.x] [Citation(s) in RCA: 45] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We investigated the role of thrombin in the pathogenesis in atherosclerosis and restenosis. First we examined the effect of thrombin on cultured human vascular smooth muscle cells (VSMC). We showed that thrombin acts as a mitogen on VSMC through thrombin receptor. The expression of thrombin receptor was increased in the cell lines of VSMC established from directional coronary atherectomy (DCA). This is more pronounced in the cells from patients with restenosis after PTCA. Next we investigated the signaling pathway from thrombin/thrombin receptor. Thrombin activates thrombin receptor resulting in the exposing of the agonist peptide domain (thrombin receptor agonist peptide, TRAP). The signal from thrombin/thrombin receptor activated protein C kinase, tyrosine kinase, and MAP kinase and resulted in NF-kappa B activation. Furthermore, treatment of the cells with antisense p65 oligodeoxynucleotides of NF-kappa B inhibited the thrombin-stimulated growth of VSMC in vitro. These results suggest that thrombin may have a role in the pathogenesis of atherosclerosis and restenosis after PTCA through the thrombin receptor.
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Affiliation(s)
- I Maruyama
- Department of Laboratory Medicine, Faculty of Medicine, University of Kagoshima, Japan
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35
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Abstract
Thirty cases with MRSA in the sputum (carrier state) were studied in relation to fecal MRSA detection. The back ground of the cases (disease, nasogastric tube, tracheostomy, antibiotics, H2-blocker) and typing of MRSA (coagulase type, Pulse Field Gel Electrophoresis (PFGE) type), and gastric pH were studied. Almost all of the patients were given antibiotics of the cephem series of the third generation. None of the cases had abdominal operations. Fecal MRSA was positive in 14 cases (47%). H2-receptor antagonists (H2-blocker) was administered to 6 cases, and all cases (100%) had positive fecal MRSA. Eighteen cases had a history of H2-blocker administration and 5 cases had positive fecal MRSA. Duration after stopping the H2-blocker in the 5 cases was shorter than the other 13 cases. (4.5 to 20.8 months). Nasogastric tube had no significant effect in detection of fecal MRSA. And gastric pH was of no significant difference between MRSA positive cases and negative cases. These results suggest that in patient with MRSA in the sputum receiving a H2-blocker may produce MRSA enteritis because of MRSA passage to the stomach.
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Affiliation(s)
- K Shigeta
- Department of Internal Medicine, Hokusatsu Prefectual Hospital, Kagoshima
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36
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Tegoshi H, Shigeta K, Mukai M, Abe Y, Nakase Y, Mizuno T, Miyata K, Nakajima K. [Differential diagnosis of mitochondrial myopathy from dermatomyositis with various autoantibodies]. Nihon Naika Gakkai Zasshi 1996; 85:1154-6. [PMID: 8926477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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37
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Fukumoto Y, Okita K, Kodama T, Matsuda S, Kawamura S, Harima K, Harada Y, Kawaguchi K, Iida Y, Konishi T, Andoh K, Tanaka H, Hanta T, Sekitani T, Takenami T, Yamasaki T, Yamashita S, Fujimura H, Shimada M, Kohzu M, Shigeta K, Shirasawa H. Therapeutic effect of secretin in patients with jaundice; double-blind placebo-controlled multicentric trial. J Gastroenterol 1996; 31:394-403. [PMID: 8726832 DOI: 10.1007/bf02355030] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Secretin, a gastrointestinal hormone, has been shown to have a potent choleretic effect. Having already obtained some beneficial effects with secretin in patients with intrahepatic cholestasis, we sought to confirm its effects in a double-blind placebo-controlled study in patients with mild jaundice after acute or during chronic hepatitis, where total bilirubin level was in excess of 4.0 mg/dl for 3 days or more. Patients with primary biliary cirrhosis (PBC), primary sclerosing cholangitis (PSC), and familiar hyperbilirubinemia were excluded from the study. Ninety-three patients were included in this analysis, but the final evaluation covered 69 of them. No statistically significant differences were found in the reduction of serum bilirubin levels between secretin and placebo groups. As a number of patients with liver cirrhosis had been included, the subjects were subdivided into one group with cholestasis in hepatitis and one with liver cirrhosis. In the subgroup of cirrhotic patients who received secretin, serum levels of AST were significantly increased compared with the placebo group. However, since the choleretic effect of secretin is unique, further studies seem to be warranted.
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Affiliation(s)
- Y Fukumoto
- First Department of Internal Medicine, Yamaguchi University School of Medicine, Japan
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38
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Shin H, Nakajima T, Kitajima I, Shigeta K, Abeyama K, Imamura T, Okano T, Kawahara K, Nakamura T, Maruyama I. Thrombin receptor-mediated synovial proliferation in patients with rheumatoid arthritis. Clin Immunol Immunopathol 1995; 76:225-33. [PMID: 7554443 DOI: 10.1006/clin.1995.1120] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Synovial cell proliferation is one of the pathological bases of rheumatoid arthritis (RA). Several cytokines including IL-1 and IL-6 and growth factors have been shown to be involved in the synovial cell proliferation in RA. Thrombin is a multifunctional protease and acts as a mitogen for several cell types through its specific receptor. To assess whether thrombin is involved in overproliferation of rheumatoid synovial cells, we measured the concentration of thrombin-anti-thrombin III (ATIII) complex (TAT) in synovial fluid obtained from patients with RA or osteoarthritis (OA). We also examined the effect of thrombin or thrombin receptor agonist peptide (TRAP) on cell growth of synovial cell clones (SCCs) established from an RA patient. The concentrations of TAT in the synovial fluid from patients with RA were significantly higher than in those with OA. Moreover, both thrombin and TRAP enhanced proliferation of synovial cells in vitro. We also characterized the expression of thrombin receptor mRNA by reverse transcription-PCR. The expression of mRNA for thrombin receptor was up-regulated by thrombin or TRAP stimulation. Thrombin receptor antigen was also detected on both SCCs and synovial tissue from RA patients by immunostaining using a monoclonal antibody against thrombin receptor. These findings indicate that thrombin may act as a mitogen for synovial cells through thrombin receptor and may play some role in synovial overproliferation and remodeling in RA.
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Affiliation(s)
- H Shin
- Department of Clinical Laboratory Medicine, School of Medicine, Kagoshima University, Japan
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39
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Nakajima T, Kitajima I, Shin H, Takasaki I, Shigeta K, Abeyama K, Yamashita Y, Tokioka T, Soejima Y, Maruyama I. Involvement of NF-kappa B activation in thrombin-induced human vascular smooth muscle cell proliferation. Biochem Biophys Res Commun 1994; 204:950-8. [PMID: 7980566 DOI: 10.1006/bbrc.1994.2552] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.2] [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: 01/28/2023]
Abstract
A thrombin receptor has been cloned and is thought to mediate a variety of thrombin-induced responses. However, the transcription factors important for postreceptor signaling have been little clarified. The post-receptor signals are mediated by several protein kinases responsible for NF-kappa B activation, and most thrombin-inducible genes have the kappa B sequence in the regulatory elements. The possibility that NF-kappa B may participate in thrombin signaling was therefore investigated in cultured human vascular smooth muscle cells (VSMCs). Thrombin receptor stimulation resulted in activation of NF-kappa B. Furthermore, treatment of cells with antisense p65 ODNs of NF-kappa B inhibited thrombin-stimulated growth of VSMC in vitro. Results indicate that the activation of NF-kappa B is involved in thrombin signaling and that this pathway causes the proliferation of VSMC induced by thrombin. Therapeutic potential of antisense NF-kappa B ODNs for the treatment with atherosclerosis and restenosis is also indicated.
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Affiliation(s)
- T Nakajima
- Department of Laboratory Medicine, Faculty of Medicine, University of Kagoshima, Japan
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40
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Maruyama I, Shigeta K. [Regulation of the endothelial function by thrombomodulin and/or thrombin receptor]. Rinsho Ketsueki 1994; 35:234-7. [PMID: 8158841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Thrombin, the final product of blood coagulation cascade, shows several effect on the vessel-wall cells. However the effects may be regulated by several thrombin receptors on the endothelium. They include thrombomodulin (TM), protease-Nexin, heparin-like molecule-antithrombin III complex. These binding sites do not transduce the signal of thrombin. Especially TM converts thrombin from a procoagulant protease to an anticoagulant. Recently new thrombin receptor was identified on the endothelium and platelets. Through this receptor, thrombin induces activations both on platelet end-endothelium. In brief platelets aggregate and release several factors including serotonin, PDGF, platelet factor4, beta-thromboglobulin on the stimulation by thrombin. The endothelium release t-PA inhibitor; PAI-1, prostacyclin and endothelin. Thus the activations of these cells by thrombin is a key events in hemostasis, wound healing, inflammation, atherosclerosis and restenosis of coronary artery after PTCA.
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Affiliation(s)
- I Maruyama
- Department of Laboratory and Molecular Medicine, Kagoshima University School of Medicine, Japan
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41
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Nakasone T, Yamamoto S, Honda M, Horie R, Shigeta K, Saito T. [Anti-carbohydrate monoclonal antibodies against human immunodeficiency virus]. Nihon Rinsho 1993; 51 Suppl:219-23. [PMID: 8271387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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42
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Shigeta K, Hiramatsu Y, Eguchi K, Sekiba K. Rat liver epidermal growth factor receptors in intrauterine growth retarded and heavy-for-date fetuses. Acta Med Okayama 1993; 47:7-11. [PMID: 8460559 DOI: 10.18926/amo/31604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We recently reported that epidermal growth factor (EGF) levels in the first urine to be voided by intrauterine growth retardation (IUGR) and heavy-for-dates (HFD) infants were lower than control infants (8). In this study, we analyzed EGF receptors to reveal the mechanisms controlling EGF levels. EGF binding to fetal rat liver increased markedly from day 19-21 of gestation. Fetal rats were divided into IUGR, control and HFD groups. EGF binding to the liver in each group was as follows, IUGR; 380 +/- 57 fmol/mg protein, control; 258 +/- 47, and HFD; 545 +/- 112. The binding to IUGR and HFD rat liver was significantly greater than in the control group (p < 0.05). These data suggest that IUGR rats compensate for a lack of EGF by increased receptor expression and that HFD rats consume more EGF and have decreased urinary EGF excretion. These data also suggest that EGF is closely related to fetal growth and may play some important roles in fetal growth.
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Affiliation(s)
- K Shigeta
- Department of Obstetrics and Gynecology, Okayama University Medical School, Japan
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43
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Kaneko T, Iba Y, Zenita K, Shigeta K, Nakano K, Itoh W, Kurosawa Y, Kannagi R, Yasukawa K. Preparation of mouse-human chimeric antibody to an embryonic carbohydrate antigen, Lewis Y. J Biochem 1993; 113:114-7. [PMID: 8095932 DOI: 10.1093/oxfordjournals.jbchem.a123993] [Citation(s) in RCA: 10] [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: 01/28/2023] Open
Abstract
Stage-specific embryonic antigen-1 (SSEA-1) is a well-known carbohydrate antigen that is specifically expressed on the surface of cancer cells as well as embryonic cells. In this study, starting with a previously established hybridoma producing a monoclonal antibody (named H18A) to Lewis Y antigen, which is closely related to SSEA-1, we cloned genomic DNA encoding active variable regions both of heavy and light chains of the antibody. Sequence analysis showed that VH and V kappa genes of H18A were in the VH 7183 family and V kappa C1 family, respectively. A transfected cell line named HC-H18A-7 expressing a recombinant chimeric H18A composed of mouse-derived antigen-binding variable regions and human-derived constant regions was established. The chimeric H18A was purified to homogeneity and shown to bind purified Lewis Y antigen with the same dose-response curve as the original H18A. The chimeric H18A looks more promising for clinical application than the original mouse-derived H18A because its antigenicity is expected to be reduced.
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Affiliation(s)
- T Kaneko
- Biotechnology Research Laboratory, Tosoh Corporation, Kanagawa
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44
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Tsukimoto I, Matsui J, Iwashita H, Shigeta K, Suzuki H, Hashimoto T. [Improved measurements of anti-L-asparaginase IgG antibody and its clinical applications]. Rinsho Ketsueki 1992; 33:24-9. [PMID: 1545512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
To elucidate the usefulness in prediction of hypersensitive reactions of L-asparaginase (L-asp), anti-L-asp IgG antibody was measured by two kinds of enzyme-linked immunosolvent assay (ELISA) with improved microplate method and original immunobeads method. The correlation coefficient of both methods matched very well (R = 0.949). Nine out of the 10 patients who were treated with L-asp for the first time showed the elevation of the anti L-asp IgG antibody and returned to normal range within 9 months thereafter. Twenty-two out of 26 patients (84.6%) who had ever developed hypersensitive reactions showed the positive anti-L-asp antibody. There was no positive correlation between the anti-L-asp titer and the severity of the hypersensitive reactions. We concluded that the ELISA with microplate was simple and useful methods to determined the anti-L-asp IgG antibody.
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Affiliation(s)
- I Tsukimoto
- First Department of Pediatrics, Toho University School of Medicine
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45
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Shigeta K, Hiramatsu Y, Eguchi K, Sekiba K. Urinary and plasma epidermal growth factor levels are decreased in neonates with intrauterine growth retardation and in their mothers. Biol Neonate 1992; 62:76-82. [PMID: 1420616 DOI: 10.1159/000243857] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Epidermal growth factor (EGF) concentrations in urine and plasma samples collected from pregnant women and neonates were measured by RIA. The EGF concentration of the first voided urine was higher in appropriate-for-date (AFD) neonates (33.9 +/- 23.0 ng/mg creatinine) than in those with intrauterine growth retardation (IUGR; 23.5 +/- 7.7 ng/mg creatinine, p less than 0.05) and heavy-for-date (19.8 +/- 5.2 ng/mg creatinine, p less than 0.05) neonates. The urinary EGF concentration of pregnant women showed no marked changes throughout pregnancy. Urinary EGF concentrations of women with AFD fetuses (45.9 +/- 31.2 ng/mg creatinine) did not differ significantly from those of women with diabetes (39.9 +/- 26.8 ng/mg creatinine) or women with multiple fetuses (44.6 +/- 30.6 ng/mg creatinine). However, women with IUGR fetuses showed lower urinary EGF concentrations (13.8 +/- 7.4 ng/mg creatinine, p less than 0.05) than women with AFD fetuses. Maternal and fetal platelet-poor plasma EGF concentrations at delivery were lower in the IUGR group (mother: 2.62 +/- 0.38 ng/ml, fetus: 2.16 +/- 0.07 ng/ml, respectively, p less than 0.05 and p less than 0.005) than in the AFD group (mother: 3.34 +/- 0.64 ng/ml, fetus: 3.24 +/- 0.93 ng/ml). In the IUGR group, the EGF concentration in fetal blood was always lower than that in maternal blood (p less than 0.05), although the AFD groups showed no such difference. These data suggest that EGF levels are closely related to fetal growth.
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Affiliation(s)
- K Shigeta
- Department of Obstetrics and Gynecology, Okayama University Medical School, Japan
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46
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Tsukimoto I, Shigeta K. [Strategies and management of hospital blood center services for safety and efficacy of blood transfusion]. Rinsho Byori 1991; Suppl 88:195-204. [PMID: 1856968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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47
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Akahori S, Handa M, Kohchi T, Shimizu R, Akimoto Y, Hongoh M, Shigeta K. [A case of post-partum eclampsia followed by magnetic resonance imaging and electroencephalography]. Nihon Sanka Fujinka Gakkai Zasshi 1990; 42:1575-8. [PMID: 2273315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- S Akahori
- Department of Obstetrics and Gynecology, Okayama Red Cross General Hospital
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48
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Zenita K, Hirashima K, Shigeta K, Hiraiwa N, Takada A, Hashimoto K, Fujimoto E, Yago K, Kannagi R. Northern hybridization analysis of VH gene expression in murine monoclonal antibodies directed to cancer-associated ganglioside antigens having various sialic acid linkages. J Immunol 1990; 144:4442-51. [PMID: 2111348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The expression of the VH genes in 46 murine hybridoma cells that secrete mAb directed to the cancer-associated carbohydrate Ag, especially acidic glycolipids such as gangliosides and sulfated glycoplipids, was analyzed by Northern hybridization of poly(A)+ RNA of hybridoma with cDNA probes for nine VH gene families. Different hybridomas tended to express VH genes of the same family when the cognate Ag had the same or similar carbohydrate structures; i.e., the VH genes of the J558 family (group 1) were preferentially expressed in the mAb directed to various gangliosides that have NeuAc alpha (or NeuGc alpha) 2-3 and/or 2-8 linkage (71%), the most common linkage of sialic acid residues in the gangliosides of higher animals, and the hybridomas directed to sulfated glycolipids also expressed mainly the VH genes of the J558 family (80%). In contrast, the five mAb directed to various gangliosides with NeuAc alpha 2-6 linkage were exclusively encoded by the VH genes of Q52 family (group 2, 100%), and three antibodies directed to gangliosides with a NeuAc alpha 2-9 linkage all expressed genes of J606 family (group 6, 100%). The VH family usage was largely correlated with the linkage of sialic acid residues in the cognate carbohydrate Ag, but was not correlated at all with the difference in the fine specificities toward the core neutral carbohydrate chain, to which the sialic acid residues were attached. These findings suggest that the VH gene family in these anticarbohydrate antibodies is selected, depending primarily on the linkage of the sialic acid residues in carbohydrate Ag; these residues form the immunodominant sugar residue in the respective antigenic determinant.
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Affiliation(s)
- K Zenita
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
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49
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Zenita K, Hirashima K, Shigeta K, Hiraiwa N, Takada A, Hashimoto K, Fujimoto E, Yago K, Kannagi R. Northern hybridization analysis of VH gene expression in murine monoclonal antibodies directed to cancer-associated ganglioside antigens having various sialic acid linkages. The Journal of Immunology 1990. [DOI: 10.4049/jimmunol.144.11.4442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
The expression of the VH genes in 46 murine hybridoma cells that secrete mAb directed to the cancer-associated carbohydrate Ag, especially acidic glycolipids such as gangliosides and sulfated glycoplipids, was analyzed by Northern hybridization of poly(A)+ RNA of hybridoma with cDNA probes for nine VH gene families. Different hybridomas tended to express VH genes of the same family when the cognate Ag had the same or similar carbohydrate structures; i.e., the VH genes of the J558 family (group 1) were preferentially expressed in the mAb directed to various gangliosides that have NeuAc alpha (or NeuGc alpha) 2-3 and/or 2-8 linkage (71%), the most common linkage of sialic acid residues in the gangliosides of higher animals, and the hybridomas directed to sulfated glycolipids also expressed mainly the VH genes of the J558 family (80%). In contrast, the five mAb directed to various gangliosides with NeuAc alpha 2-6 linkage were exclusively encoded by the VH genes of Q52 family (group 2, 100%), and three antibodies directed to gangliosides with a NeuAc alpha 2-9 linkage all expressed genes of J606 family (group 6, 100%). The VH family usage was largely correlated with the linkage of sialic acid residues in the cognate carbohydrate Ag, but was not correlated at all with the difference in the fine specificities toward the core neutral carbohydrate chain, to which the sialic acid residues were attached. These findings suggest that the VH gene family in these anticarbohydrate antibodies is selected, depending primarily on the linkage of the sialic acid residues in carbohydrate Ag; these residues form the immunodominant sugar residue in the respective antigenic determinant.
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Affiliation(s)
- K Zenita
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
| | - K Hirashima
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
| | - K Shigeta
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
| | - N Hiraiwa
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
| | - A Takada
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
| | - K Hashimoto
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
| | - E Fujimoto
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
| | - K Yago
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
| | - R Kannagi
- Department of Clinical Science and Laboratory Medicine, Kyoto University, School of Medicine, Japan
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50
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Kannagi R, Takada A, Shigeta K, Itai S, Hashimoto K. [2D3 series, MSW 113 and other monoclonal antibodies directed to type 1 chain carbohydrate antigens]. Nihon Rinsho 1990; 48 Suppl:992-8. [PMID: 2355641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- R Kannagi
- Department of Laboratory Medicine and Clinical Science, Faculty of Medicine, Kyoto University
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