1
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Yanagisawa T, Miki J, Shimizu K, Motohashi K, Enoki K, Egawa S. Residue and recurrence in percutaneous cryoablation for cT1 renal tumor: Clinical utility and feasibility of salvage cryoablation with iodized oil marking. Int J Urol 2022; 29:472-474. [DOI: 10.1111/iju.14809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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)
- Takafumi Yanagisawa
- Departments of Department ofUrologyThe Jikei University School of Medicine Minato‐ku TokyoJapan
| | - Jun Miki
- Departments of Department ofUrologyThe Jikei University School of Medicine Minato‐ku TokyoJapan
| | - Kanichiro Shimizu
- Department ofRadiology The Jikei University School of Medicine Minato‐kuTokyo Japan
| | - Kenji Motohashi
- Department ofRadiology The Jikei University School of Medicine Minato‐kuTokyo Japan
| | - Keitaro Enoki
- Department ofRadiology The Jikei University School of Medicine Minato‐kuTokyo Japan
| | - Shin Egawa
- Departments of Department ofUrologyThe Jikei University School of Medicine Minato‐ku TokyoJapan
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Shimizu K, Enoki K, Kameoka Y, Motohashi K, Yanagisawa T, Miki J, Baba A, Sekiguchi H, Sadaoka S. Image-guided percutaneous cryoablation of T1b renal cell carcinomas in patients with comorbidities. Jpn J Radiol 2021; 39:1213-1222. [PMID: 34228240 DOI: 10.1007/s11604-021-01168-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 06/29/2021] [Indexed: 01/20/2023]
Abstract
PURPOSE To investigate the influence of comorbidities and tumor characteristics on outcomes following percutaneous cryoablation (PCA) of T1b renal cell carcinoma (RCC). MATERIALS AND METHODS Age-adjusted Charlson comorbidity index (ACCI); standardized system for quantitating renal tumor size, location, and depth (RENAL nephrometry score [RNS]); and local tumor control and survival were retrospectively investigated in 28 patients who underwent PCA for stage T1b RCC. Risk factors for elevated serum creatinine levels were also investigated. RESULTS Complete ablation was obtained in 27 of 28 patients. Two cases of metastasis were observed; one patient died 12 months after PCA. Overall survival at 5 years was 79.1%, with a mean follow-up of 42.0 ± 16.0 months. Local tumor control was not correlated with the ACCI and RNS. Worsening renal function 3 months after PCA was observed in ten patients, and it correlated with the presence of single kidneys (7/28 patients; p = 0.023). Significant worsening of renal function continued until 1 year after PCA (p = 0.013). Having a single kidney was a risk factor for worsened renal function after PCA (odds ratio, 8.00; 95% confidence interval 1.170-54.724). CONCLUSION PCA for T1b RCC confers positive local tumor control regardless of comorbidities and tumor characteristics.
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Affiliation(s)
- Kanichiro Shimizu
- Department of Radiology, Kashiwa Hospital, The Jikei University School of Medicine, Jikei University, Kashiwashita 163-1, Kashiwa-shi, Chiba, 277-8567, Japan.
| | - Keitaro Enoki
- Department of Radiology, Kashiwa Hospital, The Jikei University School of Medicine, Jikei University, Kashiwashita 163-1, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Yoshihiko Kameoka
- Department of Radiology, Kashiwa Hospital, The Jikei University School of Medicine, Jikei University, Kashiwashita 163-1, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Kenji Motohashi
- Department of Radiology, Kashiwa Hospital, The Jikei University School of Medicine, Jikei University, Kashiwashita 163-1, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Takafumi Yanagisawa
- Department of Urology, Kashiwa Hospital, The Jikei University School of Medicine, Kashiwashita 163-1, Kashiwa-shi, Chiba, Japan
| | - Jun Miki
- Department of Urology, Kashiwa Hospital, The Jikei University School of Medicine, Kashiwashita 163-1, Kashiwa-shi, Chiba, Japan
| | - Akira Baba
- Department of Radiology, Jikei University School of Medicine, Nishisinnbashi 3-19-1, Minato-ku, Tokyo, Japan
| | - Huruki Sekiguchi
- Department of Cardiology, Tokyo Women's Medical University Hospital, Kawada-cho 8-1, Shinjuku-ku, Tokyo, Japan
| | - Shunichi Sadaoka
- Department of Radiology, Kashiwa Hospital, The Jikei University School of Medicine, Jikei University, Kashiwashita 163-1, Kashiwa-shi, Chiba, 277-8567, Japan
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Namiki H, Ito Y, Matsuzawa H, Enoki K, Motohashi K, Hattori D, Tanoue S, Suzuki K, Katori M, Hirooka S, Masuoka H, Sadaoka S, Nishiwaki K, Yano S. [Utility of core-needle biopsy as a primary diagnostic method for detecting aggressive B-cell lymphoma in the intensive care unit]. Rinsho Ketsueki 2021; 62:55-57. [PMID: 33551427 DOI: 10.11406/rinketsu.62.55] [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] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 68-year-old male presented with appetite loss and abdominal distention. The whole-body computed tomography scan revealed an ileocecal mass with a large amount of ascites, which was consistent with malignant lymphoma. Due to the worsening of his general condition following admission, he was intubated and admitted to the intensive care unit (ICU). In the ICU, we performed a core-needle biopsy (CNB) on the left peritoneal mass, the findings of which showed a pathological diffuse infiltration of CD20+ middle-sized lymphoid cells. After chemotherapy was initiated, the patient showed complete response, suggesting that CNB can be performed immediately and safely even on a critically ill patient.
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Affiliation(s)
- Hiroya Namiki
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University Kashiwa Hospital
| | - Yuta Ito
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University Kashiwa Hospital.,Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University School of Medicine
| | | | - Keitaro Enoki
- Department of Radiology, The Jikei University Kashiwa Hospital
| | - Kenji Motohashi
- Department of Radiology, The Jikei University Kashiwa Hospital
| | - Daiki Hattori
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University Kashiwa Hospital.,Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University School of Medicine
| | - Susumu Tanoue
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University Kashiwa Hospital.,Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University School of Medicine
| | - Kazuhito Suzuki
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University Kashiwa Hospital.,Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University School of Medicine
| | - Mitsuji Katori
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University Kashiwa Hospital.,Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University School of Medicine
| | | | - Hidekazu Masuoka
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University Kashiwa Hospital.,Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University School of Medicine
| | | | - Kaichi Nishiwaki
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University Kashiwa Hospital.,Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University School of Medicine
| | - Shingo Yano
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, The Jikei University School of Medicine
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Inomata C, Ikebe K, Okubo H, Takeshita H, Mihara Y, Hatta K, Tada S, Enoki K, Ogawa T, Matsuda K, Gondo Y, Masui Y, Kamide K, Takahashi R, Arai Y, Maeda Y. Dietary Intake Is Associated with Occlusal Force Rather Than Number of Teeth in 80-y-Old Japanese. JDR Clin Trans Res 2016; 2:187-197. [DOI: 10.1177/2380084416673963] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
There has been a growing interest in the association between the number of teeth and dietary intake in older populations. However, people around the age of 80 y have frequently lost most of their teeth, and dental prostheses replacing the missing teeth play an important role in masticatory function. Therefore, masticatory function cannot be evaluated by the number of teeth alone. The occlusal force of the complete dental arches is an index of masticatory function, reflecting not only the number of teeth, but the effect of removable dentures. The purpose of this cross-sectional study was to determine the relative importance of the number of teeth and occlusal force in association with dietary intake in 80-y-old Japanese people. This study included 760 community-dwelling Japanese people aged 79 y to 81 y. The authors measured bilateral maximal occlusal force in the intercuspal position using pressure-sensitive sheets. Removable denture wearers kept their dentures in place during the measurements. Energy-adjusted food groups and nutrient intake during the preceding month were assessed by a brief self-administered diet history questionnaire. The authors assessed linear trends in food and nutrient intake in relation to the number of teeth and occlusal force after adjusting for gender and socioeconomic status (education level, financial status, family structure, resident area and BMI). P values of < 0.05 were considered to be statistically significant. The authors found that the number of teeth was not associated with the energy-adjusted intake of any food group examined. In contrast, a decline in occlusal force was significantly associated with a lower intake of vegetables, fish and shellfish, protein, polyunsaturated fatty acids, dietary fiber and most vitamins and minerals ( P for trend < 0.05). We conclude that food and nutrient intake was more closely associated with occlusal force than the number of teeth in community-dwelling Japanese people aged 79 y to 81 y. Knowledge Transfer Statement: This cross-sectional study of older Japanese people showed that, after controlling for considerable covariates, occlusal force rather than the number of teeth is positively associated with energy-adjusted intake of vegetables, fish and shellfish, protein, polyunsaturated fatty acids, dietary fiber and most of vitamins and minerals. This means that reduced occlusal force may unconsciously lead older people toward a habitual unhealthy dietary intake. Older people have frequently lost most of their teeth and require prosthetics to restore masticatory function. Bilateral occlusal force is therefore a better measure of masticatory function than the number of remaining teeth. Our findings suggest that prosthetic rehabilitation is a significant factor in the prevention and management of chronic diseases and frailty through better dietary intake in older populations.
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Affiliation(s)
- C. Inomata
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - K. Ikebe
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - H. Okubo
- National Institute of Public Health, Department of Health Promotion, Saitama, Japan
| | - H. Takeshita
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - Y. Mihara
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - K. Hatta
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - S. Tada
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - K. Enoki
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - T. Ogawa
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - K. Matsuda
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
| | - Y. Gondo
- Osaka University Graduate School of Human Sciences, Department of Clinical Thanatology and Geriatric Behavioral Science, Osaka, Japan
| | - Y. Masui
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - K. Kamide
- Osaka University Graduate School of Allied Health Sciences, Osaka, Japan
| | - R. Takahashi
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Y. Arai
- Keio University School of Medicine, Tokyo, Japan
| | - Y. Maeda
- Osaka University Graduate School of Dentistry, Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka, Japan
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5
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Murai S, Matsuda K, Ikebe K, Enoki K, Hatta K, Fujiwara K, Maeda Y. A field survey of the partially edentate elderly: Investigation of factors related to the usage rate of removable partial dentures. J Oral Rehabil 2015; 42:828-32. [PMID: 26059645 DOI: 10.1111/joor.12318] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2015] [Indexed: 11/30/2022]
Abstract
Although the shortened dental arch (SDA) concept has been known to all over the world, acceptance of the SDA concept as an oral health standard can be questionable from the patients' point of view, even if it is biologically reasonable. Furthermore, because the health insurance system covers removable partial dentures (RPDs) for all citizens in Japan, SDA patients seem to prefer to receive prosthetic treatment to replace the missing teeth. However, there were few field surveys to investigate the usage rate of RPDs in Japan. The purpose of this study was to determine the usage rate of RPDs in older Japanese subjects and to investigate the factors related to the usage of RPDs. Partially edentate participants (n = 390) were included in this study. Oral examinations were conducted to record several indices. The Cochran-Armitage trend test was used to evaluate the relationship between the number of missing teeth and the usage rate of RPDs. Chi-squared tests and logistic regression analysis were conducted to evaluate the factors related to the usage rate of RPDs. Usage of RPDs had a significantly positive association with the number of missing distal extension teeth and bilaterally missing teeth. The usage rate of RPDs increased as the number of missing distal extension teeth increased (P for trend < 0·001). The conclusion of this study was that participants with missing distal extension teeth had higher usage rates of RPDs than other participants, and the usage rate increased as the number of missing distal extension teeth increased.
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Affiliation(s)
- S Murai
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Matsuda
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Ikebe
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Enoki
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Hatta
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - K Fujiwara
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
| | - Y Maeda
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Japan
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6
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Kurushima Y, Ikebe K, Matsuda K, Enoki K, Ogata S, Yamashita M, Murakami S, Hayakawa K, Maeda Y. Influence of genetic and environmental factors on oral diseases and function in aged twins. J Oral Rehabil 2014; 42:49-56. [PMID: 25196049 DOI: 10.1111/joor.12228] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2014] [Indexed: 11/30/2022]
Abstract
This study was conducted to quantify the genetic and environmental contributions to oral disease and function in twins. Participants were middle-aged and old twins, 116 monozygotic and 16 dizygotic pairs whose mean age was 66·1 ± 10·3 (SD) years. Number of teeth, percentage of decayed, filled and missing teeth and periodontal status were recorded as indicators of oral disease. The widths of upper and lower dental arch served as indicators of morphological figures. Furthermore, stimulated salivary flow rate, occlusal force and masticatory performance were measured as indicators of oral function. Univariate genetic analysis with monozygotic and dizygotic twin pairs was conducted to detect the fittest structural equation model of each outcome. Both number of teeth and periodontal status fitted the model composed of common environmental factor and unique environmental factor. Decayed, filled and missing teeth, morphological figures and measurements of oral function fitted the model composed of additive genetic factor and unique environmental factor. The model fitting of each measurement suggested that periodontal disease was mainly affected by environmental factors, while morphological figures and oral functions were influenced by both genetic and environmental factors.
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Affiliation(s)
- Y Kurushima
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
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7
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Enoki K, Ikebe K, Matsuda KI, Yoshida M, Maeda Y, Thomson WM. Determinants of change in oral health-related quality of life over 7 years among older Japanese. J Oral Rehabil 2013; 40:252-7. [DOI: 10.1111/joor.12031] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2011] [Indexed: 11/30/2022]
Affiliation(s)
- K. Enoki
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Suita Osaka Japan
| | - K. Ikebe
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Suita Osaka Japan
| | - K.-I. Matsuda
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Suita Osaka Japan
| | - M. Yoshida
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Suita Osaka Japan
| | - Y. Maeda
- Department of Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Suita Osaka Japan
| | - W. M. Thomson
- Sir John Walsh Research Institute, Department of Oral Sciences, School of Dentistry; University of Otago; Dunedin New Zealand
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8
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Kagawa R, Ikebe K, Enoki K, Murai S, Okada T, Matsuda K, Maeda Y. Influence of hypertension on pH of saliva in older adults. Oral Dis 2012; 19:525-9. [DOI: 10.1111/odi.12043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 07/13/2012] [Accepted: 07/17/2012] [Indexed: 11/27/2022]
Affiliation(s)
- R Kagawa
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - K Ikebe
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - K Enoki
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - S Murai
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - T Okada
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - K Matsuda
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
| | - Y Maeda
- Department of Removable Prosthodontics, Gerodontology and Oral Rehabilitation; Osaka University Graduate School of Dentistry; Osaka Japan
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Hirose Y, Enoki K, Yoshiuchi S, Takeuchi T, Honda F, Sugiyama K, Yamamoto E, Haga Y, Hagiwara M, Kindo K, Settai R, Ōnuki Y. Metamagnetic Behavior in Heavy Fermion Compounds UCo2Zn20and UIr2Zn20. ACTA ACUST UNITED AC 2012. [DOI: 10.1088/1742-6596/391/1/012021] [Citation(s) in RCA: 3] [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: 11/11/2022]
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Nakano T, Enoki K, Nakashima M, Ishikawa H, Ametani Y, Ohta S, Ohkuchi A, Satake S, Kojima Y, Funamoto H, Tateno M, Miwa A. [Survival in patients with clear cell carcinoma of the ovary]. Gan To Kagaku Ryoho 1998; 25:67-73. [PMID: 9464331] [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: 02/06/2023]
Abstract
Thirty-one patients with clear cell ovarian carcinoma who underwent primary surgery and postoperative therapy were retrospectively evaluated. Eighteen patients (58%) had International Federation of Gynecology and Obstetrics (FIGO) stage I disease, 3 patients (9.7%) stage II disease, and 10 patients (32.3%) stage III and IV disease. Patients with stage III and IV disease demonstrated a significantly poor prognosis compared with patients who had stage I or II disease (p < 0.01). No patients with stage III and IV disease survived 5 years. p53 protein expression and proliferative activity (PA) were studied by immunohistochemical methods using p53 molecule and antibodies to PCNA (proliferative cell nuclear antigen). Intranuclear accumulations of p53 product were observed in 15 of 31 (48.4%). On the other hand, 15 of 31 (48.4%) patients stained positively for PCNA (> or = 60% of cancer cells stained positively). Positive p53 staining and highly PA were associated with poor survival. Two patients with stage I a relapsed were positive p53 and highly PA. Accordingly, consolidation chemotherapy is necessary for patients with stage I a who are positive p53 and highly PA. Platinum-based chemotherapy for patients who had minimal residual tumor was effective, but 5 patients who had > or = 2 cm tumor burden were not effective at all. The response rate for platinum-based chemotherapy was 20% (1/5) among p53 positive, in contrast to 66.7% (4/6) among p53 negative patients. So it seems that p53 positive patients are chemoresistant.
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Affiliation(s)
- T Nakano
- Dept. of Obstetrics and Gynecology, Toyama Prefectural Central Hospital
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Nakagawa T, Enoki K, Shimamoto S, Hishimoto T, Kurata A. [Anti-C100-3 antibody titration using 4-parameter logistic curve (results in its application to hepatitis C cases treated with interferon]. Rinsho Byori 1992; 40:627-33. [PMID: 1513034] [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
We evaluated titers of C100-3 antibody by ELISA using a 4-parameter logistic fitting curve and examined the transition of the values in the cases of interferon treatment. The 4-parameter logistic fitting curve produced a standard curve in a wider range using a micro plate reader than the logarithmic curve. The values of C100-3 antibody during and after the treatments of interferon were changed in parallel with the alterations of ALT. The anti-C100-3 antibody titers assayed in the complete or partial responders were significantly reduced at the end of interferon therapy. These findings suggest the clinical usefulness of the evaluation of anti C100-3 antibody titers.
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Affiliation(s)
- T Nakagawa
- Clinical Laboratory, National Osaka Hospital
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Esaka M, Enoki K, Kouchi B, Sasaki T. Purification and characterization of abundant secreted protein in suspension-cultured pumpkin cells : abundant secreted protein may be a chitinase. Plant Physiol 1990; 93:1037-41. [PMID: 16667554 PMCID: PMC1062627 DOI: 10.1104/pp.93.3.1037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The abundant secreted protein with molecular weight of 32,000 was purified from the culture medium of suspension-cultured pumpkin (Cucurbita sp.) cells. Two steps, ammonium sulfate fractionation and Sepharose 6B column chromatography, were sufficient for purification to homogeneity. Antibodies against the pure protein were used to show that a protein of the same size is made by callus cells. There is considerable homology between the amino-terminal amino acid sequence of this secreted protein and chitinase isolated from tobacco (Nicotiana tabacum L.) or bean (Phaseolus vulgaris L.).
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Affiliation(s)
- M Esaka
- Faculty of Applied Biological Science, Hiroshima University, Saijo, Higashi-Hiroshima, 724 Japan
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Saji H, Tanaka A, Magata Y, Enoki K, Tokui T, Nishihara Y, Senda M, Yonekura Y, Yokoyama A, Torizuka K. Procurement and biological significance of pure 11C-glucose. Radioisotopes 1984; 33:680-685. [PMID: 6335262 DOI: 10.3769/radioisotopes.33.10_680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Biological significance of 11C-glucose purity has been a controversial matter. In order to understand the contribution of impurities contained in the photosynthetic 11C-glucose, its analysis and biodistribution in mice was studied. Studies indicated the interference of impurities, particularly 11C-fructose in the injectate, with the quantitative evaluation of glucose metabolic rate in brain. Furthermore, results obtained offered a good basis for search of simpler and easier separation methodology. Namely, good selection and combination of commercially available high performance liquid chromatography (HPLC) column provided 11C-glucose with high radiochemical purity. The radiochemical yield achieved was 6-10% at 75 min after the end of bombardment including the HPLC purification. The imaging study by positron computed tomography in a rabbit showed the suitability of 11C-glucose as a radiopharmaceutical for the diagnosis of the brain function.
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Nishihara Y, Tanaka A, Enoki K, Saji H, Torizuka K. [Development of an automatic synthesis system for cyclotron--produced radiopharmaceuticals: 15O-water and 11C-cyanide]. Radioisotopes 1984; 33:706-9. [PMID: 6522649 DOI: 10.3769/radioisotopes.33.10_706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Abstract
The quantitative measurement of regional blood flow and regional extravascular lung water, called for a design of 15O labeled water production and administration under continuous and constant flow. In our search for simple methodology, suitable for clinical routine facilities, two remote-controlled systems were designed and their applicability for continuous and constant infusion of H215O were tested. In system (A), H215O was prepared from C15O2 based on the fast exchange reaction between carbon dioxide and carbonic acid. In the system (B), the reaction of 15O2 with H2 using palladium as a catalyst was adopted. In the both systems, the radioactivity level of the infusate was kept constant by using a buffer reservoir. Clinical applicability of both fully automated systems for the production of sterile H215O at a continuous and constant rate was discussed. Namely, system (A), being very simple seems more suitable for any closely located facility but system (B) is more suited for the production of higher radioactivity.
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