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Kubota K, Fujioka T, Tateishi U, Mori M, Yashima Y, Yamaga E, Katsuta L, Yamaguchi K, Tozaki M, Sasaki M, Uematsu T, Monzawa S, Isomoto I, Suzuki M, Satake H, Nakahara H, Goto M, Kikuchi M. Investigation of imaging features in contrast-enhanced magnetic resonance imaging of benign and malignant breast lesions. Jpn J Radiol 2024:10.1007/s11604-024-01551-1. [PMID: 38503998 DOI: 10.1007/s11604-024-01551-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/20/2024] [Indexed: 03/21/2024]
Abstract
PURPOSE This study aimed to enhance the diagnostic accuracy of contrast-enhanced breast magnetic resonance imaging (MRI) using gadobutrol for differentiating benign breast lesions from malignant ones. Moreover, this study sought to address the limitations of current imaging techniques and criteria based on the Breast Imaging Reporting and Data System (BI-RADS). MATERIALS AND METHODS In a multicenter retrospective study conducted in Japan, 200 women were included, comprising 100 with benign lesions and 100 with malignant lesions, all classified under BI-RADS categories 3 and 4. The MRI protocol included 3D fast gradient echo T1- weighted images with fat suppression, with gadobutrol as the contrast agent. The analysis involved evaluating patient and lesion characteristics, including age, size, location, fibroglandular tissue, background parenchymal enhancement (BPE), signal intensity, and the findings of mass and non-mass enhancement. In this study, univariate and multivariate logistic regression analyses were performed, along with decision tree analysis, to identify significant predictors for the classification of lesions. RESULTS Differences in lesion characteristics were identified, which may influence malignancy risk. The multivariate logistic regression model revealed age, lesion location, shape, and signal intensity as significant predictors of malignancy. Decision tree analysis identified additional diagnostic factors, including lesion margin and BPE level. The decision tree models demonstrated high diagnostic accuracy, with the logistic regression model showing an area under the curve of 0.925 for masses and 0.829 for non-mass enhancements. CONCLUSION This study underscores the importance of integrating patient age, lesion location, and BPE level into the BI-RADS criteria to improve the differentiation between benign and malignant breast lesions. This approach could minimize unnecessary biopsies and enhance clinical decision-making in breast cancer diagnostics, highlighting the effectiveness of gadobutrol in breast MRI evaluations.
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Affiliation(s)
- Kazunori Kubota
- Department of Radiology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamiko-Shigaya, Koshigaya, Saitama, 343-8555, Japan
- Department of Diagnostic Radiology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Tomoyuki Fujioka
- Department of Diagnostic Radiology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan.
| | - Ukihide Tateishi
- Department of Diagnostic Radiology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Mio Mori
- Department of Diagnostic Radiology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Yuka Yashima
- Department of Radiology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamiko-Shigaya, Koshigaya, Saitama, 343-8555, Japan
- Department of Diagnostic Radiology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Emi Yamaga
- Department of Diagnostic Radiology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Leona Katsuta
- Department of Diagnostic Radiology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Ken Yamaguchi
- Department of Radiology, Faculty of Medicine, Saga University, 5-1-1, Nabeshima, Saga City, Saga, 849-8501, Japan
| | - Mitsuhiro Tozaki
- Department of Radiology, Sagara Hospital, 3-31 Matsubara-Cho, Kagoshima City, Kagoshima, 892-0833, Japan
| | - Michiro Sasaki
- Department of Radiology, Sagara Hospital, 3-31 Matsubara-Cho, Kagoshima City, Kagoshima, 892-0833, Japan
| | - Takayoshi Uematsu
- Division of Breast Imaging and Breast Interventional Radiology, Shizuoka Cancer Center Hospital, Nagaizumi, Shizuoka, 411-8777, Japan
| | - Shuichi Monzawa
- Department of Diagnostic Radiology, Shinko Hospital, 1-4-47, Wakinohama-Cho, Chuo-Ku, Kobe City, Hyogo, 651-0072, Japan
| | - Ichiro Isomoto
- Department of Radiology, St. Francis Hospital, 9-20, Kominemachi, Nagasaki City, Nagasaki, 852-8125, Japan
| | - Mizuka Suzuki
- Department of Diagnostic Radiology, Tokyo Metropolitan Cancer and Infectious Disease Center, Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan
| | - Hiroko Satake
- Department of Radiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya, Aichi, 466-8550, Japan
| | - Hiroshi Nakahara
- Department of Radiology, Sagara Hospital Miyazaki, 2-112-1 Maruyama, Miyazaki City, Miyazaki, 880-0052, Japan
| | - Mariko Goto
- Department of Radiology, Kyoto Prefectural University of Medicine, 465 Kajii-Cho, Kamigyo-Ku, Kyoto City, 602-8566, Japan
| | - Mari Kikuchi
- Department of Imaging Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 135-8550, Japan
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Hasegawa T, Ueda N, Yamada SI, Kato S, Iwata E, Hayashida S, Kojima Y, Shinohara M, Tojo I, Nakahara H, Yamaguchi T, Kirita T, Kurita H, Shibuya Y, Soutome S, Akashi M. Correction to: Denosumab-related osteonecrosis of the jaw after tooth extraction and the effects of a short drug holiday in cancer patients: a multicenter retrospective study. Osteoporos Int 2023; 34:1823-1825. [PMID: 37493979 DOI: 10.1007/s00198-023-06833-4] [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: 07/27/2023]
Affiliation(s)
- T Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - N Ueda
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - S I Yamada
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Kato
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - E Iwata
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of Oral and Maxillofacial Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
| | - S Hayashida
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Kojima
- Department of Dentistry and Oral Surgery, Kansai Medical University, Hirakata, Japan
| | - M Shinohara
- Department of Oral and Maxillofacial Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - I Tojo
- Department of Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Nakahara
- Department of Oral and Maxillofacial Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Yamaguchi
- Department of Preventive Dentistry, Research Field in Dentistry, Medical and Dental Sciences Area, Kagoshima University, Kagoshima, Japan
| | - T Kirita
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - H Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Shibuya
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - S Soutome
- Department of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - M Akashi
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Hasegawa T, Ueda N, Yamada SI, Kato S, Iwata E, Hayashida S, Kojima Y, Shinohara M, Tojo I, Nakahara H, Yamaguchi T, Kirita T, Kurita H, Shibuya Y, Soutome S, Akashi M. Denosumab-related osteonecrosis of the jaw after tooth extraction and the effects of a short drug holiday in cancer patients: a multicenter retrospective study. Osteoporos Int 2021; 32:2323-2333. [PMID: 33997909 DOI: 10.1007/s00198-021-05995-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/05/2021] [Indexed: 12/15/2022]
Abstract
UNLABELLED Pre-existing inflammation, corticosteroid therapy, periapical periodontitis, longer duration of denosumab therapy, and female sex were significantly associated with an increased risk of denosumab-related osteonecrosis of the jaw after tooth extraction in patients with cancer on oncologic doses of denosumab. A short drug holiday did not protect against this complication. INTRODUCTION This study retrospectively investigated the relationship between various risk factors, including brief discontinuation of denosumab, and development of denosumab-related osteonecrosis of the jaw (DRONJ) after tooth extraction in patients with cancer who were receiving oncologic doses of this agent. METHODS Data were collected on demographic characteristics, duration of denosumab therapy, whether or not denosumab was discontinued before tooth extraction (drug holiday), duration of discontinuation, presence of pre-existing inflammation, and whether or not additional surgical procedures were performed. Risk factors for DRONJ after tooth extraction were evaluated by univariate and multivariate analyses. RESULTS A total of 136 dental extractions were performed in 72 patients (31 men, 41 women) with cancer who were receiving oncologic doses of denosumab. Post-extraction DRONJ was diagnosed in 39 teeth (28.7%) in 25 patients. Tooth extraction was significantly associated with development of DRONJ only in patients with pre-existing inflammation (odds ratio [OR] 243.77), those on corticosteroid therapy (OR 73.50), those with periapical periodontitis (OR 14.13), those who had been taking oncologic doses of denosumab for a longer period (OR 4.69), and in women (OR 1.04). There was no significant difference in the occurrence of DRONJ between patients who had a drug holiday before tooth extraction and those who did not. CONCLUSIONS These findings suggest that inflamed teeth should be extracted immediately in patients with cancer who are receiving oncologic doses of denosumab. Drug holidays have no significant impact on the risk of DRONJ.
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Affiliation(s)
- T Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - N Ueda
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - S I Yamada
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Kato
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - E Iwata
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of Oral and Maxillofacial Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
| | - S Hayashida
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Kojima
- Department of Dentistry and Oral Surgery, Kansai Medical University, Hirakata, Japan
| | - M Shinohara
- Department of Oral and Maxillofacial Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - I Tojo
- Department of Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Nakahara
- Department of Oral and Maxillofacial Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Yamaguchi
- Department of Preventive Dentistry, Research Field in Dentistry, Medical and Dental Sciences Area, Kagoshima University, Kagoshima, Japan
| | - T Kirita
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - H Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Shibuya
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - S Soutome
- Department of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - M Akashi
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Fusama M, Oliver S, Nakahara H, Van Eijk-Hustings Y, Kuroe Y. AB0894-HPR THE JOURNEY OF PATIENTS WITH RHEUMATOID ARTHRITIS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3029] [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: 11/04/2022]
Abstract
Background:The course of rheumatoid arthritis (RA) differs from patient to patient, and each patient has a unique story. The disease condition affects psychological and social aspects, greatly affecting the quality of life. The disease course is unpredictable, and each patient’s story can be seen as a lifelong journey, full of ups and downs. Therefore, it is crucial to know what kind of support is required during the course of their life.Objectives:The aim of this study is to examine the life story of patients with RA and clarify a common situation in their stories in order to consider what kind of support is needed.Methods:This is a qualitative study using life story interview for patients with RA in Japan. Interview included disease history, patients’ behaviors, effects on daily life, the patients’ perspectives regarding psychological considerations and useful support. Data were analyzed using content analysis. This study was approved by the ethics committee and informed consent was obtained.Results:Eight patients participated in this study. They were all females and the average age was 57 years old. As a result of the categorization, we extracted the following eight situations: (1) Emergence of symptom; patients thought joint pain would go away, however, the symptom did not improve and began to affect their daily life and work, (2) Choose a hospital to visit; pain and anxiety have continued and decided to visit a hospital, (3) Encounter with their doctors; patients expected their doctor to relieve their pain, while they were afraid of being told that they were suffering from a serious disease. (4) Diagnosis of RA; patients were shocked when diagnosed and anxious about what would happen and wondered why they had such a disease, (5) Choice of treatment; patients were afraid of the side effects. They wanted to make a decision discussing with their doctor, but they could not understand the explanation about drugs well and, therefore, followed the doctor’s opinion. (6) Change of treatment; a biological agent was often recommended. Patients were also worried about side effects and the financial burden. (7) Remission or stable phase; they felt better mentally too, however, they often felt anxiety about disease flare, side effect of drugs and financial burden, and (8) Flare and remission; patients felt shocked and disappointed when RA flared, and then, they noticed that patients with RA had alternating periods of relapse and remission and they had to live with RA.These interviews revealed repeated worsening and improvement of symptoms and many similar repeated psychological reactions such as anxiety, shock, denial, conflict, acceptance, giving up and relief. To cope with these fluctuating disease and mental conditions, patients were supported by educational and psychological assistance, timely consultations, social life help from nurses and support from their family. The patients considered a trusting relationship with their doctors is necessary. The patients had also realized through their experience the importance of enhancing their own abilities, such as decision-making, prevention of infections and self-management skills. Moreover, they noticed that it is important to have their own goals including hobbies and work.Conclusion:This study elucidated the common behaviors of patients with RA, the impact of RA on their psychological state and daily and social life, and the required support. The psychological condition and daily and social life also had a great influence on medical behavior. Therefore, psychosocial support and establishment of trust between healthcare professionals and patients are crucial. In addition, improving patients’ self-management skills including self-efficacy and empowerment is also necessary. As patients with RA often feel anxious in various situations and expect nurses’ support, nurses should listen to patients, pay attention to their concerns and anxieties, and show a solution-oriented attitude. In order for patients to feel at ease in their Patient Journey, nurses should sail with them while maintaining a patient-centered perspective.Disclosure of Interests:None declared
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Tozaki M, Yabuuchi H, Goto M, Sasaki M, Kubota K, Nakahara H. Effects of gadobutrol on background parenchymal enhancement and differential diagnosis between benign and malignant lesions in dynamic magnetic resonance imaging of the breast. Breast Cancer 2021; 28:927-936. [PMID: 33625722 DOI: 10.1007/s12282-021-01229-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 02/18/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND The high concentration of gadolinium in gadobutrol, which is widely used in Japan, helps visualize signal enhancement of neoplastic lesions, however, there was concern that high T1 relaxivity could decrease the contrast between the lesion and the background mammary gland. We evaluate the effect of gadobutrol on background parenchymal enhancement (BPE) and differential diagnosis between benign and malignant lesions in dynamic MRI of the breast. METHODS Ninety-nine patients were enrolled prospectively. Measurements of the following signal intensities (SIs) were obtained: breast tissue on a pre-contrast image (SIpre) and an early-phase image (SIearly); and the SIs of breast cancer on a pre-contrast image (SIpre-cancer) and an early-phase image (SIearly-cancer). We calculated the BPE ratio, i.e., (SIearly - SIpre)/SIpre and the cancer/BPE ratio, i.e., (SIearly-cancer - SIpre-cancer)/(SIearly on the affected side - SIpre on the affected side). These quantitative assessments were compared with the data from the recently published multicenter study (reference study without use of gadobutrol). In addition, two radiologists reinterpreted each of the MR images, and a third radiologist set the ROIs in the lesions and performed kinetic analysis as a Reader 3. RESULTS While there was no significant difference in the SI of breast cancer in the premenopausal patients between the two studies, that in postmenopausal patients was significantly higher in the present study than in the reference study (p = 0.002). Although there was no significant difference in the cancer/BPE ratio in the postmenopausal patients between the two studies, the cancer/BPE ratio in the premenopausal patients was significantly higher in the reference study than in the present study (p = 0.028). For differentiation between benign and malignant masses, the mass margin was found to be the most important term (p < 0.001). According to the data of Reader 3, visual washout was observed in all 18 patients in whom the interpretation was changed from "plateau" to "washout". CONCLUSIONS Gadobutrol may decrease the contrast between breast cancer and background parenchyma in premenopausal patients, and it may have a characteristic that "washout" does not easily occur, leading to "plateau" in patients with breast cancer.
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Affiliation(s)
- Mitsuhiro Tozaki
- Department of Radiology, Sagara Hospital, 3-31 Matsubara-cho, Kagoshima City, Kagoshima, 892-0833, Japan.
| | - Hidetake Yabuuchi
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Mariko Goto
- Department of Radiology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto City, 602-8566, Japan
| | - Michiro Sasaki
- Department of Radiology, Sagara Perth Avenue Clinic, 26-13 Shinyashiki-cho, Kagoshima City, Kagoshima, 892-0838, Japan
| | - Kazunori Kubota
- Department of Radiology, Dokkyo Medical University, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi, 321-0293, Japan.,Department of Diagnostic Radiology, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hiroshi Nakahara
- Department of Radiology, Sagara Hospital Miyazaki, 2-112-1 Maruyama, Miyazaki City, Miyazaki, 880-0052, Japan
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Fusama M, Uda M, Matsumura H, Van Eijk-Hustings Y, Oliver S, Nakahara H. THU0646-HPR EXPLORING THE ROLE OF NURSE IN RHEUMATIC CARE AND FEASIBILITY OF ENHANCING TREAT TO TARGET STRATEGIES IN JAPAN. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.5315] [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: 11/04/2022]
Abstract
Background:The role of rheumatology nurses is considered important for the implementation of T2T [1]. For nurses’ contribution to implementation of the T2T strategy, it is necessary to explore the nurses’ opinion on their roles in real clinical practice.Objectives:The aim of this study is to evaluate what is required for nurses to implement T2T in real clinical practice in Japan.Methods:Registered nurses engaged in rheumatic care in clinical practice in Japan were enrolled. Focus group interviews were conducted exploring ‘What is necessary for RA nurses to implement T2T’using semi-structured interviews. Data analysis was used with Krippendorff’s content analysis method.Results:24 nurses (all females) from 10 hospitals were enrolled in this study. The results of the qualitative analysis were categorized in 10 main categories, derived from 37 subcategories based on 64 different codes: (1) provide basic knowledge of RA, (2) provide knowledge of RA drugs, (3) provide knowledge and skills of self-monitoring, (4) enhance self-efficacy and support self-management, (5) support decision-making, (6) psychological and social support, (7) understand the diversity and feelings of patients and their families, (8) support based on individual needs, (9) ensure continuing educational opportunities for nurses to enable the provision of high quality care, (10) collaborate with multidisciplinary teams.These categories are mostly covered in the contents of the 2018 updated EULAR recommendations for the role of nurses except “evidence-based rheumatic care”, “telehealth” and “comprehensive participation in disease management”.Conclusion:These findings indicate the areas of exploration including further educational and training needs, attitudes and the professional scope for nurses to extend their roles to provide greater value to patient care.In Japan, evidence-based RA nursing and telehealth systems have not yet been established. In addition, therapeutic intervention by nurses and nurse-led clinic are not permitted. Our results might reflect this situation and possibly elucidates the gap between EULAR’s evidence-based recommendations and opinions of Japanese nurses working in daily clinical practice. As evidence-based nursing is considered to be crucial from both cost-effectiveness and improvement of patients QOL, this result also might shed light on what we need for future better rheumatic nursing in Japan.References:[1]van Eijk- Hustings Y, et al. Ann Rheum Dis 2012;71: 13–19.Disclosure of Interests:MIE FUSAMA: None declared, Miyabi Uda: None declared, Harumi Matsumura: None declared, Yvonne van Eijk-Hustings Grant/research support from: grand from sanofi and UCB, Consultant of: fee from amgen, Susan Oliver: None declared, Hideko Nakahara: None declared
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Hashimoto T, Nakahara H. Immunological diagnostic methods in oral mucosal diseases. Br J Dermatol 2019; 181:9-10. [PMID: 31259393 DOI: 10.1111/bjd.17830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T Hashimoto
- Department of Dermatology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - H Nakahara
- Department of Oral and Maxillofacial Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
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Hasegawa T, Hayashida S, Kondo E, Takeda Y, Miyamoto H, Kawaoka Y, Ueda N, Iwata E, Nakahara H, Kobayashi M, Soutome S, Yamada SI, Tojyo I, Kojima Y, Umeda M, Fujita S, Kurita H, Shibuya Y, Kirita T, Komori T. Medication-related osteonecrosis of the jaw after tooth extraction in cancer patients: a multicenter retrospective study. Osteoporos Int 2019; 30:231-239. [PMID: 30406309 DOI: 10.1007/s00198-018-4746-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 10/17/2018] [Indexed: 11/29/2022]
Abstract
UNLABELLED Root amputation, immunosuppressive therapy, mandibular tooth extraction, pre-existing inflammation, and longer duration of treatment with bone-modifying agents were significantly associated with an increased risk of medication-related osteonecrosis of the jaw. Hopeless teeth should be extracted without drug holiday before the development of inflammation in cancer patients receiving high-dose bone-modifying agents. INTRODUCTION No studies have comprehensively analyzed the influence of pre-existing inflammation, surgical procedure-related factors such as primary wound closure, demographic factors, and drug holiday on the incidence of medication-related osteonecrosis of the jaw (MRONJ). The purpose of this study was to retrospectively investigate the relationships between these various factors and the development of MRONJ after tooth extraction in cancer patients receiving high-dose bone-modifying agents (BMAs) such as bisphosphonates or denosumab. METHODS Risk factors for MRONJ after tooth extraction were evaluated with univariate and multivariate analyses. The following parameters were investigated in all patients: demographics, type and duration of BMA use, whether BMA use was discontinued before tooth extraction (drug holiday), the duration of such discontinuation, the presence of pre-existing inflammation, and whether additional surgical procedures (e.g., incision, removal of bone edges, root amputation) were performed. RESULTS We found that root amputation (OR = 22.62), immunosuppressive therapy (OR = 16.61), extraction of mandibular teeth (OR = 12.14), extraction of teeth with pre-existing inflammation, and longer duration (≥ 8 months) of high-dose BMA (OR = 7.85) were all significantly associated with MRONJ. CONCLUSIONS Tooth extraction should not necessarily be postponed in cancer patients receiving high-dose BMA. The effectiveness of a short-term drug holiday was not confirmed, as drug holidays had no significant impact on MRONJ incidence. Tooth extraction may be acceptable during high-dose BMA therapy until 8 months after initiation.
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Affiliation(s)
- T Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - S Hayashida
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - E Kondo
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Takeda
- Department of Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Miyamoto
- Department of Oral Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Y Kawaoka
- Department of Dentistry and Oral Surgery, Kansai Medical University, Hirakata, Japan
| | - N Ueda
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - E Iwata
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of Oral and Maxillofacial Surgery, Kakogawa Central City Hospital, Kakogawa, Japan
| | - H Nakahara
- Department of Oral and Maxillofacial Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Kobayashi
- Department of Oral and Maxillofacial Surgery, Shin-Suma General Hospital, Kobe, Japan
| | - S Soutome
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S I Yamada
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - I Tojyo
- Department of Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
| | - Y Kojima
- Department of Dentistry and Oral Surgery, Kansai Medical University, Hirakata, Japan
| | - M Umeda
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S Fujita
- Department of Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Shibuya
- Department of Oral Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - T Kirita
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - T Komori
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Yamada SI, Soutome S, Hasegawa T, Toujou I, Nakahara H, Kawakami M, Hirose M, Fujita S, Komori T, Kirita T, Shibuya Y, Umeda M, Kurita H. A multicenter retrospective investigation on the efficacy of perioperative oral management in cancer patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.103] [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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Matsugu Y, Ito K, Nobuhara H, Oshita A, Nakahara H, Urushihara T, Itamoto T. Implementation of ERAS program incorporating early enteral and peripheral parenteral nutrition for pancreaticoduodenectomy. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1988] [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: 11/24/2022]
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Yamaoka T, Hasegawa K, Kono S, Nakahara H. MA 04.09 A Study on the Damage of Passive Smoking to Japanese Lung Cancer Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.475] [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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12
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Fukahori S, Yagi M, Ishii S, Asagiri K, Saikusa N, Hashizume N, Yoshida M, Masui D, Komatsuzaki N, Higashidate N, Nakahara H, Tanaka Y. A baseline impedance analysis in neurologically impaired children: A potent parameter for estimating the condition of the esophageal mucosa. Neurogastroenterol Motil 2017; 29. [PMID: 28086260 DOI: 10.1111/nmo.13012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 11/23/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND The aim of the present study was to investigate whether the baseline impedance (BI) value is a useful parameter to evaluate the condition of the esophageal mucosa in neurologically impaired (NI) children undergoing multichannel intraluminal impedance pH measurements (pH/MII). METHODS The retrospective study included 55 NI patients ≤15 years. The patients were divided into acid gastroesophageal reflux disease (GERD), non-acid GERD and GERD (-) groups. Furthermore, the patients in the acid GERD group were subdivided into erosive reflux disease (ERD) and non-erosive reflux disease (NERD) groups. pH/MII parameters and BI values (Z1-6) were compared among three groups or between two groups, respectively. A Spearman's correlation analysis was used for the correlation analysis of pH/MII parameters and BI values. A receiver operator characteristic curve analysis was used to evaluate the optimum cut-off values of BI to discriminate ERD patients. KEY RESULTS The BI values of the proximal and the distal channels in ERD group were significantly lower than those in NERD group. The BI values of the distal channels demonstrated significant negative correlations with acid exposure related pH/MII parameters. The optimal cut off value of BI in the most distal channel was determined to be 1500 Ω. CONCLUSIONS & INFERENCES The present study suggested that NI children with reflux esophagitis were likely to suffer mucosal damage up to the proximal esophagus and cut-off BI values may help estimate the presence of reflux esophagitis. Baseline impedance is a potent parameter, reflecting the esophageal mucosal damage in NI children who have difficulty in undergoing endoscopic examinations.
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Affiliation(s)
- S Fukahori
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - M Yagi
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - S Ishii
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - K Asagiri
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - N Saikusa
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - N Hashizume
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - M Yoshida
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - D Masui
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - N Komatsuzaki
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - N Higashidate
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - H Nakahara
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Y Tanaka
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan.,Division of Medical Safety Management, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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Hara Y, Maeda K, Higa S, Kawamoto K, Nishikawa N, Okazaki Y, Hiramatsu M, Nakahara H, Manabe Y, Wibowo T, Igarashi T, Ogata A. FRI0304 The Change of The Frequency of Right Heart Catheterization for The Diagnosis of Pulmonary Hypertension among Patients with Connective Tissue Diseases in A Hospital in Osaka, Japan – Comparison of The First 5 Years and The Latter 5 Years. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3391] [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: 11/03/2022]
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Fusama M, Yukioka K, Kuroiwa T, Yukioka C, Inoue M, Higashi K, Ogata A, Murata N, Kuritani T, Maeda K, Sano H, Yukioka M, Nakahara H. SAT0633-HPR Social Support May Be Important for Improving Patient Satisfaction and Health Status in Patients with Rheumatoid Arthritis Treated with Biologics. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5277] [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: 11/04/2022]
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Fusama M, Yukioka K, Kuroiwa T, Yukioka C, Inoue M, Higashi K, Ogata A, Murata N, Kuritani T, Maeda K, Sano H, Yukioka M, Nakahara H. SAT0632-HPR The Efficacy of Biologics on Health Status Including Psychological Status, Self-Efficacy and Patient Satisfaction in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5193] [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: 11/04/2022]
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Furusawa H, Shidooka J, Inomata M, Hirabara E, Nakahara H, Ymaguchi Y. MRgFUS of small breast cancer: what should be learned from a case of local recurrence. J Ther Ultrasound 2015. [PMCID: PMC4489488 DOI: 10.1186/2050-5736-3-s1-o75] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Fusama M, Yukioka K, Kuroiwa T, Yukioka C, Yukioka T, Inoue M, Nakanishi T, Takai N, Higashi K, Miura Y, Murata N, Kuritani T, Maeda K, Sano H, Yukioka M, Nakahara H. FRI0631-HPR Patient Satisfaction is Correlated with Role, Psychological State and Patient Global Assessment in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4562] [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: 11/03/2022]
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18
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Yukioka C, Nakahara H, Fusama M, Yukioka K, Kuroiwa T, Yukioka T, Inoue M, Nakanishi T, Takai N, Higashi K, Miura Y, Murata N, Kuritani T, Maeda K, Sano H, Yukioka M. AB1216-HPR A Study of Possible Correlations of Sleep Disturbance with Disease Activity, Psychological State and Health Status in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4455] [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: 11/04/2022]
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Fusama M, Nakahara H, Takeuchi T. FRI0632-HPR Survey on Attitudes Regarding the Role of Nurses Involved in Medical Care of Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4539] [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: 11/04/2022]
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Affiliation(s)
- A. Ruammaitree
- Department of Quantum Engineering, Faculty of Engineering; Nagoya University; Nagoya 464-8603 Japan
| | - H. Nakahara
- Department of Quantum Engineering, Faculty of Engineering; Nagoya University; Nagoya 464-8603 Japan
| | - Y. Saito
- Department of Quantum Engineering, Faculty of Engineering; Nagoya University; Nagoya 464-8603 Japan
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Nakahara H. The differential diagnosis of oral borderline malignancies using contrastive immunohistochemical profiles between CK 13 and CK 17. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Zhao YL, Nagame Y, Nishinaka I, Tsukada K, Sueki K, Nakahara H, Goto S, Tanikawa M. Shapes of Fragment Mass-Yield Distributions and Shapes of Scissioning Nuclei in Actinides. J NUCL SCI TECHNOL 2014. [DOI: 10.1080/00223131.2002.10875402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Y. L. Zhao
- Institute of High Energy Physics, Chinese Academy of Science, Beijing 100039, China
- Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
- Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Y. Nagame
- Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
| | - I. Nishinaka
- Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
| | - K. Tsukada
- Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
| | - K. Sueki
- Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - H. Nakahara
- Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - S. Goto
- Chemistry Department, Niigata University, Niigata, 950-21, Japan
| | - M. Tanikawa
- Department of Chemistry, University of Tokyo, Tokyo 113, Japan
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Fusama M, Yukioka K, Kuroiwa T, Yukioka C, Inoue M, Nakanishi T, Murata N, Takai N, Higashi K, Miura Y, Kuritani T, Maeda K, Sano H, Yukioka M, Nakahara H. THU0580-HPR Psychological Remission May BE Effective to Attain Remission of Boolean-Based Definition of Patient Global Assessment in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2438] [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: 11/03/2022]
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Fusama M, Yukioka K, Kuroiwa T, Yukioka C, Inoue M, Nakanishi T, Murata N, Takai N, Higashi K, Miura Y, Kuritani T, Maeda K, Sano H, Yukioka M, Nakahara H. THU0579-HPR Psychological State and Health Status Account for the Discrepancy between Patient Global Assessment and Evaluator Global Assessment in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4804] [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: 11/04/2022]
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Maeda K, Higa S, Nakahara H, Kawamoto K, Mori H, Nozato S, Hirai M, Matsuoka H, Kuritani T, Igarashi T. FRI0330 C-Reactive Protein Does not Elevate in Half of Pneumonia Cases for the Entire Observation Period of Pneumonia during TOCILIZUMAB Treatment for Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3072] [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: 11/03/2022]
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Nakahara H, Kawamoto K, Mori H, Nozato S, Hirai M, Matuoka H, Higa S, Fusama M, Takeuchi E, Igarashi T, Kuritani T, Sano H, Maeda K. AB0485 Tocilizumab is Effective for the Patient with Sjogren's Syndrome Complicated with Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4416] [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: 11/04/2022]
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27
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Yukioka C, Nakahara H, Fusama M, Yukioka K, Kuroiwa T, Nakanishi T, Inoue M, Ohsawa S, Murata N, Takai N, Higashi K, Miura Y, Kuritani T, Maeda K, Sano H, Yukioka M. SAT0126 Correlation of Sleep Disturbance with Disease Activity, Psychological State, Self-Efficacy and Quality of Life in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3933] [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: 11/04/2022]
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Abstract
Abstract
Experimental verification and characterization of the two-mode fission are reviewed. The presence of two independent deformation-paths in low energy fission of actinides is demonstrated by studying correlation among saddle-point configurations, scission-point configurations, and mass-yield distributions; the elongated scission configuration is related with the fission process that goes over a higher threshold energy and results in a symmetric mass-division mode, while the compact scission configuration with the process that experiences a lower threshold ends up with an asymmetric mass-division mode. Based on an extensive systematic analysis of scission properties in a wide range of actinide fission, the bimodal fission observed in the spontaneous fission of the heavy actinides is interpreted as the result of the presence of two fission paths, namely, the ordinary asymmetric fission path and a strongly shell-influenced symmetric mode.
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Affiliation(s)
- Y. Nagame
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - H. Nakahara
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
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Nagame Y, Nishinaka I, Tsukada K, Ichikawa S, Ikezoe H, Zhao YL, Oura Y, Sueki K, Nakahara H, Tanikawa M, Ohtsuki T, Takamiya K, Nakanishi K, Kudo H, Hamajima Y, Chung Y. Bimodal Nature of Low Energy Fission of Light Actinides. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.1997.78.special-issue.3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Y. Nagame
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - I. Nishinaka
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - K. Tsukada
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - S. Ichikawa
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - H. Ikezoe
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11, Japan
| | - Y. L. Zhao
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Y. Oura
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - K. Sueki
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - H. Nakahara
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - M. Tanikawa
- Department of Chemistry, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan
| | - T. Ohtsuki
- Laboratory of Nuclear Science, Tohoku University, Taihaku-ku, Sendai 982, Japan
| | - K. Takamiya
- Department of Chemistry, Osaka University, Toyonaka, Osaka 560, Japan
| | - K. Nakanishi
- Department of Chemistry, Osaka University, Toyonaka, Osaka 560, Japan
| | - H. Kudo
- Department of Chemistry, Niigata University, Niigata 950-21, Japan
| | - Y. Hamajima
- Department of Chemistry, Kanazawa University, Kanazawa 920-11, Japan
| | - Y.H. Chung
- Department of Chemistry,Hallym University,Chuncheon,Kangwon-Do 200-702,Korea
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Maeda Y, Funagayama M, Shinohara A, Koshimoto C, Komaki K, Furusawa H, Nakahara H, Yasuda Y, Machida E. Effect of membrane solubilization on the inhibition of rat and hamster liver microsomal type I 11β-hydroxysteroid dehydrogenase by bile acids. Horm Metab Res 2013; 45:856-61. [PMID: 23979791 DOI: 10.1055/s-0033-1353197] [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: 10/26/2022]
Abstract
The aim of this study was to investigate the differences between rats and hamsters, Two of the most widely used experimental animals, with respect to the effects of microsomal membrane solubilization on the inhibition of liver 11β-hydroxysteroid dehydrogenase (11β-HSDI) enzyme by bile acids. Liver microsome fractions were prepared, and the 11β-HSDI enzymatic activity was measured using cortisone as a substrate. The substrate and various concentrations of bile acids were added to the assay mixtures. After incubation, the products were extracted and analyzed using high-performance liquid chromatography. To investigate the effect of detergent on the inhibitory effects of bile acids, we conducted inhibition tests using Triton X-100-solubilized animal liver microsomes. When solubilized microsomes were used, all bile acids inhibited 11β-HSDI from rats and hamsters to various degrees. 7α-Hydroxycholanoic acids (cholic acid and chenodeoxycholic acid) in particular had strong inhibitory activities. In hamsters, 7β-hydroxycholanoic acid (ursodeoxycholic acid) was the strongest inhibitor among the bile acids tested, although its effect was not very strong. When nonsolubilized microsomes were used, deoxycholic acid did not inhibit but rather enhanced the enzymatic activity in both animals. Microsomal content of cholesterol and phospholipids are significantly different between rats and hamsters. Species differences in bile acid inhibition of nonsolubilized microsomes might be reflected not only by structural difference of bile acids, which affect membrane solubilization and enzyme activity directly, but also species difference in microsomal membrane lipid content.
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Affiliation(s)
- Y Maeda
- Department of Surgery, Breastopia Hospital, Miyazaki, Japan
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Miyake Y, D'Alessandro-Gabazza CN, Takagi T, Naito M, Hataji O, Nakahara H, Yuda H, Fujimoto H, Kobayashi H, Yasuma T, Toda M, Kobayashi T, Yano Y, Morser J, Taguchi O, Gabazza EC. Dose-dependent differential effects of thrombin in allergic bronchial asthma. J Thromb Haemost 2013; 11:1903-15. [PMID: 23964923 DOI: 10.1111/jth.12392] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 08/04/2013] [Indexed: 12/22/2022]
Abstract
BACKGROUND Apart from its role in the coagulation system, thrombin plays an important role in the inflammatory response through its protease-activated receptors (PARs). However, the role of thrombin in the immune response is not clear. OBJECTIVE To evaluate whether thrombin has a modulatory role in allergic bronchial asthma. METHODS Bronchial asthma was induced in mice by intraperitoneal sensitization and inhalation challenge with ovalbumin. Thrombin or its inhibitors were administered by inhalation before each allergen challenge. RESULTS Mice with low but sustained coagulation activation had reduced allergic inflammation, and allergic asthma was inhibited by low doses of thrombin but worsened by high doses. Allergic asthma was worsened by antithrombin, argatroban, hirudin, and anti-thrombomodulin antibody. Mice with a higher level of an inhibitor of both thrombin and activated protein C had worse disease. Heterozygous PAR-1 mice had less allergic inflammation, but PAR-1 agonist worsened it. Allergic bronchial inflammation was worsened in mice that received adoptive transfer of PAR-1 agonist-treated Th2 cells as compared with controls. Low levels of thrombin suppressed the maturation and secretion of cytokines in dendritic cells, but high levels enhanced this. CONCLUSIONS The effects of thrombin on allergic asthma are dose-dependent, with detrimental effects at high doses and protective effects at low doses. These data demonstrate that thrombin modulates the outcome in allergic bronchial asthma.
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Affiliation(s)
- Y Miyake
- Department of Immunology, Mie University Graduate School of Medicine, Tsu, Japan
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Latif SA, Oura Y, Ebihara M, Nakahara H. Non-destructive elemental analysis of large meteorite samples by prompt gamma-ray neutron activation analysis with the internal mono-standard method. Anal Bioanal Chem 2013; 405:8749-59. [PMID: 24037616 DOI: 10.1007/s00216-013-7331-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 08/24/2013] [Accepted: 08/29/2013] [Indexed: 11/26/2022]
Abstract
Prompt gamma-ray neutron activation analysis (PGNAA) using the internal mono-standard method was tested for its applicability to analyzing large solid samples including irregularly shaped meteorite samples. For evaluating the accuracy and precision of the method, large quantities of the Geological Survey of Japan standardized rock powders (JB-1a, JG-1a, and JP-1) were analyzed and 12 elements (B, Na, Mg, Al, Cl, K, Ca, Ti, Mn, Fe, Sm, and Gd) were determined by using Si as an internal standard element. Analytical results were mostly in agreement with literature values within 10 %. The precision of the method was also shown to be within 10 % (1σ) for most of these elements. The analytical procedure was then applied to four stony meteorites (Allende, Kimble County, Leedey, Lake Labyrinth) and four iron meteorites (Canyon Diablo, Toluca (Mexico), Toluca (Xiquipilco), Squaw Creek) consisting of large chunks or single slabs. For stony meteorites, major elements (Mg, Al, Si, S, Ca, and Ni), minor elements (Na and Mn) and trace element (B, Cl, K, Ti, Co, and Sm) were determined with adequate accuracy. For iron meteorites, results for the Co and Ni mass fractions determined are all consistent with corresponding literature values. After the analysis, it was confirmed that the residual radioactivity remaining in the sample after PGNAA was very low and decreased down to the background level. This study shows that PGNAA with the internal mono-standard method is highly practical for determining the elemental composition of large, irregularly shaped solid samples including meteorites.
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Affiliation(s)
- Sk A Latif
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
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Fujii T, Sekiguchi M, Matsui K, Kitano M, Hashimoto M, Ohmura K, Yamamoto A, Nakahara H, Maeda K, Yokota A, Miki K, Shimmyo N, Kuroiwa T, Murakami K, Ozaki Y, Higami K, Yoshii I, Nozaki Y, Ikawa T, Morita S, Kawahito Y, Nishimoto N, Mimori T, Sano H. AB0334 Very high titer of anti-citrullinated protein antibodies is associated with the achievement of clinical remission by abatacept in biologic-naïve patients with rheumatoid arthritis (the abroad study). Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2656] [Citation(s) in RCA: 2] [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: 11/04/2022]
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Yukioka K, Nakahara H, Fusama M, Kuroiwa T, Takai N, Yukioka C, Murata N, Inoue M, Nakanishi T, Higashi K, Kuritani T, Maeda K, Miura Y, Sano H, Yukioka M. THU0589 Correlation of Depression with Patient Global Assessment, Sleep Disturbance and Health Status in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1117] [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: 11/04/2022]
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Matsutani T, Li Y, Murakami M, Lee HM, Aoki C, Sekiguchi M, Matsui K, Kitano M, Namiki M, Ohmura K, Murakami K, Fujii T, Kuroiwa T, Shimaoka Y, Nakahara H, Maeda K, Irimajiri S, Funauchi M, Imura Y, Ikawa T, Nanpei A, Azuma T, Sasaki T, Yokota A, Kawahito Y, Mimori T, Sano H, Nishimoto N. FRI0206 Abatacept (CTLA4-IG) suppresses T cell activation and reduces TH17 cells as well as plasma IL-6 in patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2663] [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: 11/04/2022]
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Matsutani T, Murakami M, Sekiguchi M, Matsui K, Kitano M, Namiki M, Ohmura K, Imura Y, Fujii T, Kuroiwa T, Nakahara H, Hika S, Maeda K, Nozaki Y, Funauchi M, Murakami K, Ikawa T, Irimajiri S, Nampei A, Azuma T, Sasaki T, Yokota A, Morita S, Kawahito Y, Mimori T, Sano H, Nishimoto N. SAT0101 Abatacept Treatment Suppresses T Cell Activation in Anti-Cyclic Citrullinated Peptide Antibody (ACPA) Positive RA Patients but not in Acpa Negative RA Patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1827] [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: 11/04/2022]
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Fusama M, Nakahara H, Yukioka K, Kuroiwa T, Takai N, Yukioka C, Inoue M, Nakanishi T, Murata N, Miura Y, Sano H, Yukioka M, Kuritani T, Maeda K, Higashi K. AB0822-HPR Correlation of psychological state with patient global assessment in patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3144] [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: 11/04/2022]
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Murakami M, Matsutani T, Sekiguchi M, Matsui K, Kitano M, Namiki M, Ohmura K, Imura Y, Fujii T, Kuroiwa T, Nakahara H, Higa S, Maeda K, Nozaki Y, Funauchi M, Murakami K, Ikawa T, Irimajiri S, Nampei A, Azuma T, Sasaki T, Yokota A, Morita S, Kawahito Y, Mimori T, Sano H, Nishimoto N. SAT0121 Changes in Cytokine Profiles in Rheumatoid Arthritis Patients During Abatacept Treatment. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kawahara S, Matsuda S, Fukagawa S, Mitsuyasu H, Nakahara H, Higaki H, Shimoto T, Iwamoto Y. Upsizing the femoral component increases patellofemoral contact force in total knee replacement. ACTA ACUST UNITED AC 2012; 94:56-61. [PMID: 22219248 DOI: 10.1302/0301-620x.94b1.27514] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In posterior stabilised total knee replacement (TKR) a larger femoral component is sometimes selected to manage the increased flexion gap caused by resection of the posterior cruciate ligament. However, concerns remain regarding the adverse effect of the increased anteroposterior dimensions of the femoral component on the patellofemoral (PF) joint. Meanwhile, the gender-specific femoral component has a narrower and thinner anterior flange and is expected to reduce the PF contact force. PF contact forces were measured at 90°, 120°, 130° and 140° of flexion using the NexGen Legacy Posterior Stabilized (LPS)-Flex Fixed Bearing Knee system using Standard, Upsized and Gender femoral components during TKR. Increasing the size of the femoral component significantly increased mean PF forces at 120°, 130° and 140° of flexion (p = 0.005, p < 0.001 and p < 0.001, respectively). No difference was found in contact force between the Gender and the Standard components. Among the patients who had overhang of the Standard component, mean contact forces with the Gender component were slightly lower than those of the Standard component, but no statistical difference was found at 90°, 120°, 130° or 140° of flexion (p = 0.689, 0.615, 0.253 and 0.248, respectively). Upsized femoral components would increase PF forces in deep knee flexion. Gender-specific implants would not reduce PF forces.
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Affiliation(s)
- S Kawahara
- Graduate School of Medical Sciences, Kyushu University, Department of Orthopaedic Surgery, 3-1-1, Maidashi Higashi-ku, Fukuoka City 812-8582, Japan
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Takei T, Nakahara H, Ijima H, Kawakami K. Synthesis of a chitosan derivative soluble at neutral pH and gellable by freeze-thawing, and its application in wound care. Acta Biomater 2012; 8:686-93. [PMID: 22023751 DOI: 10.1016/j.actbio.2011.10.005] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 09/27/2011] [Accepted: 10/05/2011] [Indexed: 10/16/2022]
Abstract
Conventional chitosan hydrogels exhibit an acidic nature and contain unfavorable additives because (i) chitosan is soluble only in acidic solutions and (ii) toxic chemicals or proteins of non-human origin that serve as antigens are necessary for preparing chitosan hydrogels. These characteristics of the chitosan hydrogels limit their possibilities as wound dressings. In this study, a chitosan-gluconic acid conjugate is developed, soluble in an aqueous solution at neutral pH and gellable by freeze-thawing (cryogelation) without using additives. The viability of L929 fibroblasts cultured in the presence of the chitosan derivative for 24 h was >96%. The degradation rate of the corresponding chitosan cryogels by lysozyme was tunable via the derivative concentration in the gels. The gels had low cellular adhesiveness. The gels promoted the accumulation of inflammatory cells such as polymorphonuclear leukocytes, which have the potential to release chemical mediators effective for wound healing, in full-thickness skin wounds in rats and accelerated the healing of the wounds. These results demonstrate that cryogels are promising for wound care.
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Mitsuyasu H, Matsuda S, Fukagawa S, Okazaki K, Tashiro Y, Kawahara S, Nakahara H, Iwamoto Y. Enlarged post-operative posterior condyle tightens extension gap in total knee arthroplasty. ACTA ACUST UNITED AC 2011; 93:1210-6. [DOI: 10.1302/0301-620x.93b9.25822] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We investigated whether the extension gap in total knee replacement (TKR) would be changed when the femoral component was inserted. The extension gap was measured with and without the femoral component in place in 80 patients with varus osteoarthritis undergoing posterior-stabilised TKR. The effect of a post-operative increase in the size of the femoral posterior condyles was also evaluated. The results showed that placement of the femoral component significantly reduced the medial and lateral extension gaps by means of 1.0 mm and 0.9 mm, respectively (p < 0.0001). The extension gap was reduced when a larger femoral component was selected relative to the thickness of the resected posterior condyle. When the post-operative posterior lateral condyle was larger than that pre-operatively, 17 of 41 knees (41%) showed a decrease in the extension gap of > 2.0 mm. When a specially made femoral trial component with a posterior condyle enlarged by 4 mm was tested, the medial and lateral extension gaps decreased further by means of 2.1 mm and 2.8 mm, respectively. If the thickness of the posterior condyle is expected to be larger than that pre-operatively, it should be recognised that the extension gap is likely to be altered. This should be taken into consideration when preparing the extension gap.
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Affiliation(s)
- H. Mitsuyasu
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Matsuda
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Fukagawa
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - K. Okazaki
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Y. Tashiro
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S. Kawahara
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - H. Nakahara
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Y. Iwamoto
- Kyushu University, Department of Orthopaedic Surgery, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan
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Nishikawa K, Nakahara H, Shirokura Y, Nogata Y, Yoshimura E, Umezawa T, Okino T, Matsuda F. Total synthesis of 10-isocyano-4-cadinene and its stereoisomers and evaluations of antifouling activities. J Org Chem 2011; 76:6558-73. [PMID: 21755975 DOI: 10.1021/jo2008109] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first enantioselective total synthesis of 10-isocyano-4-cadinene, a marine sesquiterpene isolated from nudibranchs of the family Phyllidiidae, and determination of its absolute stereochemistry were achieved. 10-Isocyano-4-cadinene is expected to be a novel nontoxic antifouling agent. In the synthesis, intermolecular Diels-Alder reaction and samarium diiodide induced Barbier-type cyclization were employed as key steps. The absolute configuration of 10-isocyano-4-cadinene was determined as (1S,6S,7R,10S) by comparison of the optical rotations between natural and synthetic samples. In addition, the authors successfully synthesized 10-epi- and di-1,6-epi-10-isocyano-4-cadinene through the same synthetic pathway. Antifouling activities against Balanus amphitrite with the cadinenes were also evaluated.
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Affiliation(s)
- Keisuke Nishikawa
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan
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Kimura F, Asaka K, Nakahara H, Kokai F, Saito Y. Electric and mass transport of a carbon nanotube encapsulating a copper nano-rod studied by in-situ transmission electron microscopy. J Nanosci Nanotechnol 2010; 10:3907-3909. [PMID: 20355388 DOI: 10.1166/jnn.2010.1962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Electric properties and current-induced structural changes of carbon nanotubes (CNTs) encapsulating copper nano-rods were studied by in-situ transmission electron microscopy (TEM). The diameter and the length of a copper filled CNT were 18 nm and 256 nm, respectively. The thickness of the graphite layer was about 1 nm. The bias voltage was applied between the two ends of the CNT inside the TEM, and the current as well as TEM images were recorded simultaneously. At a bias voltage of 1.4 V, the current increased to 10 microA, corresponding to a current density of 4.0 x 10(6) A/cm2, and at the same time the nano-rods inside the CNT started to move to an end of the CNT. After the movement of the nano-rods, an empty CNT was left. Resistivities of the CNT and the copper nano-rod were measured to be 3.0 x 10(-5) ohm m and 1.2 x 10(-4) ohm m, respectively.
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Affiliation(s)
- F Kimura
- Department of Quantum Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Nishikawa K, Nakahara H, Shirokura Y, Nogata Y, Yoshimura E, Umezawa T, Okino T, Matsuda F. Total Synthesis of 10-Isocyano-4-cadinene and Determination of Its Absolute Configuration. Org Lett 2010; 12:904-7. [DOI: 10.1021/ol9027336] [Citation(s) in RCA: 25] [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] [Indexed: 11/30/2022]
Affiliation(s)
- Keisuke Nishikawa
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba 270-1194, Japan, and CERES, Inc., 1-6-1 Ogawa-cho, Kanda, Chiyoda-ku, Tokyo 101-0052, Japan
| | - Hiroshi Nakahara
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba 270-1194, Japan, and CERES, Inc., 1-6-1 Ogawa-cho, Kanda, Chiyoda-ku, Tokyo 101-0052, Japan
| | - Yousuke Shirokura
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba 270-1194, Japan, and CERES, Inc., 1-6-1 Ogawa-cho, Kanda, Chiyoda-ku, Tokyo 101-0052, Japan
| | - Yasuyuki Nogata
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba 270-1194, Japan, and CERES, Inc., 1-6-1 Ogawa-cho, Kanda, Chiyoda-ku, Tokyo 101-0052, Japan
| | - Erina Yoshimura
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba 270-1194, Japan, and CERES, Inc., 1-6-1 Ogawa-cho, Kanda, Chiyoda-ku, Tokyo 101-0052, Japan
| | - Taiki Umezawa
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba 270-1194, Japan, and CERES, Inc., 1-6-1 Ogawa-cho, Kanda, Chiyoda-ku, Tokyo 101-0052, Japan
| | - Tatsufumi Okino
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba 270-1194, Japan, and CERES, Inc., 1-6-1 Ogawa-cho, Kanda, Chiyoda-ku, Tokyo 101-0052, Japan
| | - Fuyuhiko Matsuda
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba 270-1194, Japan, and CERES, Inc., 1-6-1 Ogawa-cho, Kanda, Chiyoda-ku, Tokyo 101-0052, Japan
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Hachimaru T, Watanabe M, Kawaguchi S, Nakahara H. [Large saphenous vein graft aneurysm after coronary artery bypass grafting]. Kyobu Geka 2009; 62:1140-1143. [PMID: 19999091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A 64-year-old man underwent coronary artery bypass grafting (CABG) in 1994. Eleven years later, coronary angiography (CAG) showed a saphenous vein graft (SVG) aneurysm. In April 2008, the CAG demonstrated enlargement of the aneurysm. Enhanced computed tomography showed a large aneurysm measuring 53 x 44 mm in diameter of the SVG-right coronary artery (RCA) [#3] anastomosis. Off-pump coronary surgery to RCA and aneurysmectomy was planned through a median epigastric incision. However re-grafting was difficult because of severe adhesion and calcification of the coronary artery. We confirmed sufficient back flow from the distal coronary artery without hemodynamic and electrocardiographic changes under SVG clamp. Aneurysmectomy was then performed without coronary bypass. The patient was discharged 9 days after surgery and has been well for 8 months in outpatient clinic.
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Affiliation(s)
- T Hachimaru
- Department of Cardiovascular Surgery, Hiroo Hospital, Tokyo, Japan
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Wegler U, Nakahara H, Sens-Schönfelder C, Korn M, Shiomi K. Sudden drop of seismic velocity after the 2004Mw6.6 mid-Niigata earthquake, Japan, observed with Passive Image Interferometry. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jb005869] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hirao M, Hashimoto J, Tsuboi H, Nampei A, Nakahara H, Yoshio N, Mima T, Yoshikawa H, Nishimoto N. Laboratory and febrile features after joint surgery in patients with rheumatoid arthritis treated with tocilizumab. Ann Rheum Dis 2008; 68:654-7. [PMID: 18519424 PMCID: PMC2663710 DOI: 10.1136/ard.2008.090068] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [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] [Indexed: 01/12/2023]
Abstract
OBJECTIVES To understand the acute phase responses to surgical intervention in patients with rheumatoid arthritis (RA) treated with the anti-interleukin (IL)6 receptor antibody, tocilizumab. METHODS In a retrospective 1:1 pair-matched case-control study, 22 tocilizumab-treated RA cases and 22 cases treated with conventional disease-modifying antirheumatic drugs (DMARDs) and matched for type of surgery, age and sex were evaluated for body temperature every day, and blood C-reactive protein (CRP) levels and white blood cell (WBC), neutrophil and lymphocyte counts on days -1, 1, 3 and weeks 1 and 2 after joint surgery. Safety issues were also monitored. RESULTS No complications of infection or delay of wound healing occurred in either patient group. Tocilizumab partially, but significantly, suppressed the increase in body temperature on postoperative days 1 and 2, compared with DMARDs (average (SD) maximum increase in temperature was 0.45 (0.1) degrees C in the tocilizumab group and 0.78 (0.1) degrees C in the DMARD group; p<0.01). Tocilizumab completely suppressed the increase in CRP after surgery, whereas all cases treated with DMARDs showed a significant increase of CRP at postoperative day 1 (5.5 (0.6) mg/dl; p<0.001). WBC, neutrophil and lymphocyte counts showed no remarkable change after surgery, and there was no significant difference in any cell counts between the patient groups. CONCLUSIONS Within this small number of cases, safe operations on patients were performed during tocilizumab treatment. Tocilizumab suppressed fever and increase of CRP after surgery, whereas there was no influence on the transition in number of leukocytes. This characteristic postoperative response should be considered during tocilizumab treatment.
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Affiliation(s)
- M Hirao
- Department of Orthopaedics, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
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Hachimaru T, Kawaguchi S, Watanabe M, Nakahara H. [Proximal anastomotic pseudoaneurysm due to gelatin-resorcin-formalin (GRF) glue after replacement of ascending aorta for acute aortic dissection; report of a case]. Kyobu Geka 2008; 61:242-245. [PMID: 18323193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A 78-year-old man had previously undergone replacement of ascending aorta using gelatin-resorcin-formalin (GRF) glue for acute aortic dissection. Five years later, a follow-up computed tomography (CT) showed an aortic root pseudoaneurysm. Ultrasound cardiography revealed moderate aortic regurgitation and pseudoaneurysm of aortic root. Aortic root replacement was planned based on a clinical diagnosis of an anastomotic pseudoaneurysm of the aortic root. The patient was discharged without complication 26 days after surgery. In the histopathological examination, the necrotic change of smooth muscle cells in the aortic media was revealed. Previous reports suggests that the use of GRF glue for reconstructing the dissected aorta results in higher rates of postoperative redissection or pseudoaneurysm. Therefore, careful postoperative follow-up is necessary in such cases and further improvements in the quality of glue or alternative methods will be necessary to prevent problems in the first place.
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Toyoshima A, Haba H, Tsukada K, Asai M, Akiyama K, Goto S, Ishii Y, Nishinaka I, Sato TK, Nagame Y, Sato W, Tani Y, Hasegawa H, Matsuo K, Saika D, Kitamoto Y, Shinohara A, Ito M, Saito J, Kudo H, Yokoyama A, Sakama M, Sueki K, Oura Y, Nakahara H, Schädel M, Brüchle W, Kratz JV. Hexafluoro complex of rutherfordium in mixed HF/HNO3 solutions. RADIOCHIM ACTA 2008. [DOI: 10.1524/ract.2008.1474] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yamaguchi R, Furusawa H, Nakahara H, Inomata M, Namba K, Tanaka M, Ohkuma K, Tayama K, Fujii T, Yano H, Kage M, Kojiro M. Clinicopathological study of invasive ductal carcinoma with large central acellular zone: Special reference to magnetic resonance imaging findings. Pathol Int 2007; 58:26-30. [DOI: 10.1111/j.1440-1827.2007.02184.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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