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Ganapathy-Kanniappan S, Vali M, Kunjithapatham R, Buijs M, Syed L, Rao P, Ota S, Kwak B, Loffroy R, Geschwind J. 3-Bromopyruvate: A New Targeted Antiglycolytic Agent and a Promise for Cancer Therapy. Curr Pharm Biotechnol 2010. [DOI: 10.2174/1389210204205652010] [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: 11/22/2022]
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102
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Okada S, Nannya Y, Ota S, Takazawa Y, Yamamoto G, Kumano K, Izutsu K, Takahashi T, Chiba S, Kurokawa M. Cutaneous T-cell lymphoma (mycosis fungoides) relapsed with different immunological phenotype after bone marrow transplant. Br J Dermatol 2009; 162:229-30. [DOI: 10.1111/j.1365-2133.2009.09541.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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103
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Kodaira S, Yasuda N, Kawashima H, Kurano M, Hasebe N, Doke T, Ota S, Ogura K. Control of the detection threshold of CR-39 PNTD for measuring ultra heavy nuclei in galactic cosmic rays. RADIAT MEAS 2009. [DOI: 10.1016/j.radmeas.2009.10.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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104
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Kodaira S, Yasuda N, Kawashima H, Kurano M, Hasebe N, Doke T, Ota S, Tsuruta T, Hasegawa H, Sakai S, Nishi T, Ogura K. Characteristics of the copolymerized CR-39/DAP track detector for the observation of ultra heavy nuclei in galactic cosmic rays. RADIAT MEAS 2009. [DOI: 10.1016/j.radmeas.2009.10.050] [Citation(s) in RCA: 5] [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: 11/27/2022]
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105
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Takase B, Nagai T, Uehata A, Katushika S, Isojima K, Hakamata N, Ohtomi S, Ota S, Kurita A, Nakamura H. Autonomic responses to orthostatic stress in head-up tilt testing: relationship to test-induced prolonged asystole. Clin Cardiol 2009; 20:233-8. [PMID: 9068908 PMCID: PMC6655933 DOI: 10.1002/clc.4960200309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Prolonged asystole is sometimes an extreme manifestation of neurally mediated syncope. HYPOTHESIS To investigate the mechanism of head-up tilt testing-induced prolonged (life-threatening) cardiac asystole, we measured temporal changes in frequency domain heart rate variability indices in 25 patients with syncope of undetermined etiology. METHODS Head-up tilt testing (80 degrees) was performed in 25 patients for up to 40 min or until asystole or syncope occurred. Three patients (Group 1; 37 +/- 13 years, 1 man 2 women) had an episode of prolonged cardiac asystole (> or = 10 s) during testing, necessitating cardiopulmonary resuscitation. Syncope, but no asystole, was induced in 10 patients (Group 2; 48 +/- 31 years, 6 men, 4 women), and 12 patients (Group 3; 55 +/- 20 years, 5 men, 7 women) failed to show asystole or syncope during testing. Power spectra of low (0.04-0.15 Hz) and high (0.15-0.40 Hz) frequency, and total (0.01-1.00 Hz) frequency spectra were measured in consecutive 2 min segments throughout the test. RESULTS Maximally changed values in heart rate, systolic blood pressure, and heart rate variability indices during testing were compared among the three groups (maximally changed values did not include the values during tilt-induced symptoms). High frequency spectra in Groups 2 and 3, but not in Group 1, decreased during the test. High frequency spectra, low frequency spectra, and total spectra in Group 1 were significantly higher than those in Groups 2 and 3 during testing. In Group 1 patients, findings at test-induced asystole were consistent with exaggerated sympathetic and concurrent persistent parasympathetic activity. CONCLUSION Unusual autonomic responses to orthostatic stress can cause prolonged asystole, and this autonomic nerve dysregulation may relate to asystolic episodes associated with cardiovascular collapse.
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Affiliation(s)
- B Takase
- Self Defense Force Central Hospital, Internal Medicine, Tokyo, Japan
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106
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Aoi N, Takeshita E, Suzuki H, Takeuchi S, Ota S, Baba H, Bishop S, Fukui T, Hashimoto Y, Ong HJ, Ideguchi E, Ieki K, Imai N, Ishihara M, Iwasaki H, Kanno S, Kondo Y, Kubo T, Kurita K, Kusaka K, Minemura T, Motobayashi T, Nakabayashi T, Nakamura T, Nakao T, Niikura M, Okumura T, Ohnishi TK, Sakurai H, Shimoura S, Sugo R, Suzuki D, Suzuki MK, Tamaki M, Tanaka K, Togano Y, Yamada K. Development of large deformation in 62Cr. Phys Rev Lett 2009; 102:012502. [PMID: 19257184 DOI: 10.1103/physrevlett.102.012502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2008] [Indexed: 05/27/2023]
Abstract
The structure of neutron-rich isotopes 60Cr and 62Cr was studied via proton inelastic scattering in inverse kinematics. The deformation lengths (delta) for 60Cr and 62Cr were extracted as 1.12(16) and 1.36(14) fm, respectively, providing evidence for enhanced collectivity in these nuclei. An excited state at 1180(10) keV in 62Cr was identified for the first time. We adopted 4;{+} as its spin and parity, leading to the rapid increase of the Ex(4;{+})/E_{x}(2;{+}) ratio, which indicates the development of large deformation in 62Cr near N=40. Importance of the admixture of the gd-shell component above N=40 is also discussed by comparing with a modern shell model calculation.
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Affiliation(s)
- N Aoi
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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107
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Imagawa A, Fujiki S, Kawahara Y, Matsushita H, Ota S, Tomoda T, Morito Y, Sakakihara I, Fujimoto T, Taira A, Tsugeno H, Kawano S, Yagi S, Takenaka R. Satisfaction with bispectral index monitoring of propofol-mediated sedation during endoscopic submucosal dissection: a prospective, randomized study. Endoscopy 2008; 40:905-9. [PMID: 19023932 DOI: 10.1055/s-2008-1077641] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND STUDY AIMS Endoscopic submucosal dissection (ESD) is one of the most complex and lengthy endoscopic procedures, so deep sedation during ESD is indispensable. Our study aims were to determine whether bispectral index (BIS) monitoring is useful in titrating and reducing the dose of the sedative propofol during ESD, and to measure the satisfaction of patients and endoscopists involved in this complex and lengthy endoscopic therapy. PATIENTS AND METHODS We performed a prospective, randomized clinical trial from July 2006 to February 2008. A total of 156 patients, with gastric neoplasm to be treated using ESD, were randomized to two groups. The BIS group (n = 78) was monitored for propofol sedation using BIS, and the no-BIS group (n = 78) was monitored by standard methods only. The two groups were compared by evaluating the doses of propofol administered to patients and the satisfaction scores (scale of 0 - 10) of patients and endoscopists. RESULTS Although there were no significant differences between the two groups in the mean dose of propofol used (BIS group vs. no-BIS group, 5.32 mg/kg/hour vs. 4.85 mg/kg/hour; P = 0.10), the satisfaction scores of the patients (9.15 vs. 7.94; P < 0.01) and endoscopists (8.53 vs. 6.42; P < 0.001) were significantly higher with BIS monitoring. CONCLUSIONS Monitoring with BIS during the ESD procedure did not lead to a reduction in the dose of propofol required, but did lead to higher satisfaction scores from the patients and endoscopists. A complicated and prolonged endoscopic treatment such as ESD can be carried out with optimal safety, control, and comfort by using BIS to monitor propofol sedation.
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Affiliation(s)
- A Imagawa
- Tsuyama Central Hospital, Department of Gastroenterology, Okayama, Japan.
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108
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Ota S, Kodaira S, Yasuda N, Benton E, Hareyama M, Kurano M, Sato M, Shu D, Hasebe N. Tracking method for the measurement of projectile charge changing cross-section using CR-39 detector with a high speed imaging microscope. RADIAT MEAS 2008. [DOI: 10.1016/j.radmeas.2008.04.058] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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109
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Ota S, Ota TO, Fukushima T, Sato S, Ota TA, Goto K. A New Grading System for Evaluation of Technical Difficulty of Aneurysm Treatments. Interv Neuroradiol 2008; 14:143-51. [DOI: 10.1177/159101990801400205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2008] [Accepted: 05/30/2008] [Indexed: 11/16/2022] Open
Abstract
We introduced our grading system that enables us to objectively evaluate the degree of technical difficulty of aneurysm treatment modalities, i.e. neck clipping and coil embolization. The characteristics of our grading system were that the difficulty of each treatment was indicated on a ten point scale obtained by adding the scores for various technical factors. We studied annual change of treatments selected for ruptured aneurysms and the treatment results at our institute. In the earlier half of the study period, neck clipping was more frequently selected despite the fact that the difficulty score of coil embolization was lower than that of neck clipping. However, in the later half, the treatment modality was selected in accordance with the difficulty score in most of the cases. As a result, there was a tendency for the proportion of mRS 0 to increase and that of mRS 6 to decrease as the years passed. Our grading system may be useful in objectively selecting a more appropriate treatment, and further improve treatment results.
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Affiliation(s)
- S. Ota
- Department of Neurosurgery, Brain Attack Center Oota Memorial Hospital, Fukuyama, Hiroshima, Japan
| | - TO Ota
- Department of Cardiology, Brain Attack Center Oota Memorial Hospital, Fukuyama, Hiroshima, Japan
| | - T. Fukushima
- Fukuyama Transporting Shibuya Longevity Health Foundation, Fukuyama, Hiroshima, Japan
| | - S. Sato
- Department of Neurosurgery, Brain Attack Center Oota Memorial Hospital, and currently working for Sato Neurosurgery Clinic, Fukuyama, Hiroshima, Japan
| | - TA Ota
- Department of Neurosurgery, Brain Attack Center Oota Memorial Hospital, Fukuyama, Hiroshima, Japan
| | - K. Goto
- Department of Neuroradiology, Brain Attack Center Oota Memorial Hospital, Fukuyama, Hiroshima, Japan
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110
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Kim Y, Ishii G, Goto K, Ota S, Kubota K, Ohmatsu H, Niho S, Yoh K, Saijo N, Nishiwaki Y, Ochiai A. Clinical significance of ABC transporter and DNA excision repair protein expressions in small-cell lung cancer (SCLC) patients. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.8082] [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: 11/20/2022] Open
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111
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Toubai T, Hirate D, Shono Y, Ota S, Ibata M, Mashiko S, Sugita J, Shigematsu A, Miura Y, Kato N, Umehara S, Kahata K, Tsutsumi Y, Iwao N, Toyoshima N, Tanaka J, Asaka M, Imamura M. Chimerism and T-cell receptor repertoire analysis after unrelated cord blood transplantation with a reduced-intensity conditioning regimen following autologous stem cell transplantation for multiple myeloma. Int J Lab Hematol 2008; 30:75-81. [PMID: 18190473 DOI: 10.1111/j.1751-553x.2007.00903.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A 65-year-old Japanese male was diagnosed as multiple myeloma with Bence Jones kappa type, clinical stage IIIA. His disease status reached partial remission after chemotherapy. Thereafter, he received tandem transplantation, consisting of high-dose chemotherapy with autologous stem cell transplantation (ASCT), followed by unrelated cord blood transplantation (U-CBT). U-CBT with a reduced-intensity conditioning regimen (RI-CBT) was performed in August 2003. HLA mismatch between the patient and the CBT donor was present at two serological loci (B and DR). A total nucleated CBT cell dose of 2.45 x 10(7)/kg body weight was infused on day 0. Graft-vs.-host disease (GVHD) prophylaxis consisted of cyclosporine A and short-term methotrexate. Neutrophil engraftment (>0.5 x 10(9)/l) was obtained on day 46. He developed positive cytomegalovirus antigenemia, grade II acute GVHD involving skin and liver, varicella-zoster virus infection, septic shock, hemorrhagic cystitis caused by adenovirus and acute hepatitis B virus infection after U-CBT. We retrospectively analyzed T-cell receptor (TCR) repertoire diversity and found that TCR repertoire diversity decreased continuously after U-CBT. Therefore, low-TCR repertoire diversity in this patient appears to be associated with various infections caused by immunodeficiency.
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Affiliation(s)
- T Toubai
- Department of Hematology and Oncology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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112
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Toubai T, Shono Y, Nishihira J, Ibata M, Suigita J, Kato N, Ohkawara T, Tone S, Lowler KP, Ota S, Tanaka J, Asaka M, Reddy P, Imamura M. Serum macrophage migration inhibitory factor (MIF) levels after allogeneic hematopoietic stem cell transplantation. Int J Lab Hematol 2007; 31:161-8. [PMID: 18081874 DOI: 10.1111/j.1751-553x.2007.01016.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Macrophage migration inhibitory factor (MIF) may play an important role in the pathogenesis of acute graft-versus-host disease (aGVHD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT), as MIF plays an important role to regulate the production of tumor necrosis factor-alpha (TNF-alpha), one of the inflammatory cytokines which induces and exacerbates aGVHD. We examined the association between serum MIF levels and aGVHD vs. chronic GVHD (cGVHD) in allo-SCT patients in this study. We found a significant increase in the peak serum MIF (14.46 ng +/- 1.47 ng/ml) at onset in patients that developed aGVHD (n = 23, P = 0.009). We also found that mean serum MIF levels in patients who developed extensive type cGVHD within 6 months (12.58 +/- 2.18 ng/ml, n = 13) were significantly higher than MIF levels before allo-HSCT (7.86 +/- 1.17 ng/ml, n = 19, P = 0.04). Therefore, we speculated that serum MIF levels increase during the active phase of both aGVHD and cGVHD.
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Affiliation(s)
- T Toubai
- Department of Hematology and Oncology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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113
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Sugiura M, Nakajima J, Morota T, Yamamoto T, Sano A, Fukami T, Murakawa T, Ota S, Takamoto S. [Posterior mediastinal hemangioma successfully resected with cardiopulmonary bypass; report of a case]. Kyobu Geka 2007; 60:857-60. [PMID: 17703628] [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: 05/16/2023]
Abstract
Mediastinal hemangioma is a rare tumor. We report a case of a 62-year-old woman with a posterior mediastinal hemangioma. She had a history of right breast cancer and a follow-up chest radiography revealed a mass located in the left posterior mediastinum. The size was about 80 mm in diameter. The tumor surrounded the descending thoracic aorta and involved intercostal arteries. Complete excision could be achieved by decompressing the descending aorta with the aid of partial cardiopulmonary bypass and the aortic cross-clamp. Histologically, the tumor was diagnosed as a benign hemangioma. It was reported that hemangioma would reccur after subtotal excision. To employ cardiopulmonary bypass was a very effective approach for the purpose of complete excision in our case.
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Affiliation(s)
- M Sugiura
- Department of Cardiothoracic Surgery, The University of Tokyo, Japan
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114
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Kato N, Tanaka J, Sugita J, Toubai T, Miura Y, Ibata M, Syono Y, Ota S, Kondo T, Asaka M, Imamura M. Regulation of the expression of MHC class I-related chain A, B (MICA, MICB) via chromatin remodeling and its impact on the susceptibility of leukemic cells to the cytotoxicity of NKG2D-expressing cells. Leukemia 2007; 21:2103-8. [PMID: 17625602 DOI: 10.1038/sj.leu.2404862] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Innate immune cells such as natural killer (NK) cells play a crucial role in antitumor immune responses. NKG2D is a major activating immunoreceptor expressed in not only NK cells but also CD8+ T cells and shows cytotoxicity against tumors by recognizing its ligands major histocompatibility complex class I-related chain A and B (MICA and MICB) on tumor cells. Recently, it has been suggested that NKG2D-mediated cytotoxicity correlates with the expression levels of NKG2D ligands on target cells. In this study, we were able to increase the expression levels of MICA and MICB on leukemic cell lines and patients' leukemic cells by treatment with trichostatin A (TsA), a histone deacetylase (HDAC) inhibitor. Chromatin immunoprecipitation (ChIP) assays revealed that treatment with TsA resulted in increased acetylation of histone H3 and decreased association with HDAC1 at the promoters of MICA and MICB. Intriguingly, upregulation of MICA and MICB by treatment with TsA led to enhancement of the susceptibility of leukemic cells to the cytotoxicity of NKG2D-expressing cells. Our results suggest that regulation of the expression of NKG2D ligands by treatment with chromatin-remodeling drugs may be an attractive strategy for immunotherapy.
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Affiliation(s)
- N Kato
- Department of Hematology and Oncology, Hokkaido University, Graduate School of Medicine, Sapporo, Japan
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115
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Sung L, Tomlinson GA, Greenberg ML, Koren G, Judd P, Ota S, Feldman BM. Serial controlled N-of-1 trials of topical vitamin E as prophylaxis for chemotherapy-induced oral mucositis in paediatric patients. Eur J Cancer 2007; 43:1269-75. [PMID: 17383174 DOI: 10.1016/j.ejca.2007.02.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2006] [Revised: 12/06/2006] [Accepted: 02/12/2007] [Indexed: 11/26/2022]
Abstract
The objectives were (1) to determine whether in children undergoing doxorubicin-containing chemotherapy, topical vitamin E decreases an objective measurement of oral mucositis compared to placebo, and (2) to assess the feasibility of an innovative trial design in paediatric cancer, combining N-of-1 trials using Bayesian meta-analysis. We conducted a series of N-of-1, double-blinded, randomised controlled trials in children > or = 6 years of age receiving repeated cycles of identical doxorubicin-containing chemotherapy. Each study cycle was followed by topical vitamin E (800 mg) or placebo. We enroled 16 children and 45 post chemotherapy cycles were randomised to vitamin E (N=22) or placebo (N=23). There was no difference in objective mucositis scores with a mean score of 0.2 with vitamin E and 0.3 with placebo. Topical vitamin E does not reduce doxorubicin-induced oral mucositis in children. The use of N-of-1 studies and Bayesian meta-analysis may facilitate the study of some therapies in paediatric oncology.
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Affiliation(s)
- L Sung
- Department of Paediatrics, University of Toronto, Toronto, Canada.
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116
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Elekes Z, Dombrádi Z, Aoi N, Bishop S, Fülöp Z, Gibelin J, Gomi T, Hashimoto Y, Imai N, Iwasa N, Iwasaki H, Kalinka G, Kondo Y, Korsheninnikov AA, Kurita K, Kurokawa M, Matsui N, Motobayashi T, Nakamura T, Nakao T, Nikolskii EY, Ohnishi TK, Okumura T, Ota S, Perera A, Saito A, Sakurai H, Satou Y, Sohler D, Sumikama T, Suzuki D, Suzuki M, Takeda H, Takeuchi S, Togano Y, Yanagisawa Y. Spectroscopic study of neutron shell closures via nucleon transfer in the near-dripline nucleus 23O. Phys Rev Lett 2007; 98:102502. [PMID: 17358526 DOI: 10.1103/physrevlett.98.102502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2006] [Indexed: 05/14/2023]
Abstract
Neutron single particle energies have been measured in 23O using the 22O(d,p)23O*-->22O+n process. The energies of the resonant states have been deduced to be 4.00(2) MeV and 5.30(4) MeV. The first excited state can be assigned to the nu d3/2 single particle state from a comparison with shell model calculations. The measured 4.0 MeV energy difference between the nu s1/2 and nu d3/2 states gives the size of the N=16 shell gap which is in agreement with the recent USD05 ("universal" sd from 2005) shell model calculation, and is large enough to explain the unbound nature of the oxygen isotopes heavier than A=24. The resonance detected at 5.3 MeV can be assigned to a state out of the sd shell model space. Its energy corresponds to a approximately 1.3 MeV sized N=20 shell gap, therefore, the N=20 shell closure disappears at Z=8 in agreement with Monte Carlo shell model calculations using SDPF-M interaction.
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Affiliation(s)
- Z Elekes
- Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, H-4001, Hungary
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117
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Ota S, Mclimont M, Carcao MD, Blanchette VS, Graham N, Paradis E, Feldman BM. Definitions for haemophilia prophylaxis and its outcomes: The Canadian Consensus Study. Haemophilia 2007; 13:12-20. [PMID: 17212719 DOI: 10.1111/j.1365-2516.2006.01409.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The creation of acceptable standard definitions for terms used in the care and assessment of haemophilia patients has become increasingly important, as a growing number of international clinical studies have been initiated. The Delphi approach has been used in health research to reach consensus in large groups and can be used to develop definitions by using several iterations of surveys eliciting opinions from specialists in the field. Three consecutive surveys were designed based on the Delphi approach and distributed to specialist physicians, nurses and physiotherapists in order to develop definitions for seven haemophilia terms: 'primary prophylaxis', 'secondary prophylaxis', 'target joint', 'joint bleed', 'significant soft-tissue bleed', 'superficial soft-tissue bleed' and 'mucosal bleed'. Suggestions were solicited, compiled into a subsequent survey and fed back to the group to rank-order the importance of each suggested component of the definition. Final definitions were created using the top-ranked suggestions and sent back to the experts for approval. Five of the seven terms were highly endorsed with greater than 90% agreement. Some differences in agreement were found when analysed by profession. Haemophilia terms were successfully defined using the Delphi approach. Further refinement from members of the international haemophilia community will ensure that comprehensive standard definitions can be used in multicentre studies in the future.
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Affiliation(s)
- S Ota
- Research program in Child Health Evaluation Sicenses, The Hospital for Sick Children, Toronto, Canada
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118
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Hishinuma M, Ohashi KI, Yamauchi N, Kashima T, Uozaki H, Ota S, Kodama T, Aburatani H, Fukayama M. Hepatocellular oncofetal protein, glypican 3 is a sensitive marker for alpha-fetoprotein-producing gastric carcinoma. Histopathology 2006; 49:479-86. [PMID: 17064293 DOI: 10.1111/j.1365-2559.2006.02522.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIMS Glypican 3 (GPC3) is a cell surface heparan sulphate proteoglycan expressed specifically in the fetal liver and malignant neoplasms of hepatocyte lineage. The aim was to evaluate the significance of GPC3 in alpha-fetoprotein (AFP)-producing gastric carcinoma (GC) and other forms of GC. METHODS AND RESULTS We immunohistochemically evaluated GPC3 expression in representative cases of AFP-producing GC and in a tissue microarray of a consecutive series of GCs with other markers of hepatocyte lineage (AFP, PIVKA-II and hepatocyte antigen, HEP). In a series of 10 cases of AFP-producing GC, we observed immunohistochemical positivity for GPC3, PIVKA-II and HEP in 10, three and three cases in components with a hepatoid pattern and in nine, two and five cases in components with a non-hepatoid pattern, respectively. In a series of 118 cases of GC, we observed positivity for AFP, GPC3, PIVKA-II and HEP in one (0.8%), four (3.4%), six (5.1%) and 26 cases (22%), respectively. GPC3 was observed concurrently with AFP and discordantly with PIVKA-II and HEP. GPC3 positivity was clearly stronger in a larger area compared with immunoreactivity for AFP. CONCLUSIONS GPC3 is a sensitive marker for AFP-producing GC and its hepatoid component and is therefore useful to identify this aggressive subgroup of GC.
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Affiliation(s)
- M Hishinuma
- Department of Pathology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
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Shono Y, Toubai T, Ota S, Ibata M, Mashiko S, Hirate D, Miura Y, Umehara S, Toyoshima N, Tanaka J, Asaka M, Imamura M. Abnormal expansion of naïve B lymphocytes after unrelated cord blood transplantation--a case report. ACTA ACUST UNITED AC 2006; 28:351-4. [PMID: 16999729 PMCID: PMC1618819 DOI: 10.1111/j.1365-2257.2006.00809.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A 33-year-old woman underwent unrelated cord blood transplantation (U-CBT) for myelodysplastic syndrome (MDS)-related secondary AML. She showed impressive increases in the number of CD19+ B cells in bone marrow and CD19+27−IgD+ B cells in peripheral blood from about 1 month to 3 months after U-CBT. The serum level of IL-6 temporarily increased after transplantation, and this increase seemed to be correlated with the expansion of CD19+ B cells. Although, compared with BMT, little is known about the kinetics of hematological and immunological reconstitution in U-CBT, there was initial B-cell recovery after CBT as some described. This B cell recovery may be associated with a high number of B-cell precursors present in cord blood (CB). The phenomenon of naïve B lymphocyte expansion that we found might be associated with a high number of B-cell precursors present in CB.
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Affiliation(s)
- Y Shono
- Department of Hematology and Oncology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
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Dombrádi Z, Elekes Z, Saito A, Aoi N, Baba H, Demichi K, Fülöp Z, Gibelin J, Gomi T, Hasegawa H, Imai N, Ishihara M, Iwasaki H, Kanno S, Kawai S, Kishida T, Kubo T, Kurita K, Matsuyama Y, Michimasa S, Minemura T, Motobayashi T, Notani M, Ohnishi T, Ong HJ, Ota S, Ozawa A, Sakai HK, Sakurai H, Shimoura S, Takeshita E, Takeuchi S, Tamaki M, Togano Y, Yamada K, Yanagisawa Y, Yoneda K. Vanishing N = 20 shell gap: study of excited states in (27,28)Ne. Phys Rev Lett 2006; 96:182501. [PMID: 16712361 DOI: 10.1103/physrevlett.96.182501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2005] [Indexed: 05/09/2023]
Abstract
This Letter reports on the (1)H((28)Ne, (28)Ne) and (1)H((28)Ne, (27)Ne) reactions studied at intermediate energy using a liquid hydrogen target. From the cross section populating the first 2(+) excited state of (28)Ne, and using the previously determined BE(2) value, the neutron quadrupole transition matrix element has been calculated to be M(n)=13.8 +/- 3.7 fm(2). In the neutron knockout reaction, two low-lying excited states were populated in (27)Ne. Only one of them can be interpreted by the sd shell model while the additional state may intrude from the fp shell. These experimental observations are consistent with the presence of fp shell configurations at low excitation energy in (27,28)Ne nuclei caused by a vanishing N=20 shell gap at Z=10.
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Affiliation(s)
- Zs Dombrádi
- Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, H-4001, Hungary
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121
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Miura Y, Tanaka J, Toubai T, Tsutsumi Y, Kato N, Hirate D, Kaji M, Sugita J, Shigematsu A, Iwao N, Ota S, Masauzi N, Fukuhara T, Kasai M, Asaka M, Imamura M. Analysis of donor-type chimerism in lineage-specific cell populations after allogeneic myeloablative and nonmyeloablative stem cell transplantation. Bone Marrow Transplant 2006; 37:837-43. [PMID: 16547484 DOI: 10.1038/sj.bmt.1705352] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We analyzed donor-type chimerism in CD3+, CD14.15+ and CD56+ cells from 36 patients who had undergone conventional-intensity allogeneic stem cell transplantation (CST) and 34 patients who had undergone non-myeloablative allogeneic stem cell transplantation (NST) for hematological malignancies. On day 28 after transplantation, all fractions in NST patients and CD3+ cells in CST patients who received a non-total body irradiation (TBI) regimen showed more frequent mixed chimerism (<90% donor cells) than those in patients who had received TBI. NST patients with acute graft-versus-host disease (grade II-IV) frequently showed more than 50% donor-type chimerism in CD3+ cells on day 14 (P=0.029). NST patients with <50% donor-type chimerism on day 14 and with <90% donor-type chimerism on day 28 in CD56+ cells had significantly poor 1-year overall survival (0 vs 91%, P<0.001 and 20 vs 74%, P=0.002, respectively). Both NST and CST patients with <90% donor-type chimerism in CD14.15+ cells on day 28 had significantly poor 1-year overall survival (14 vs 70%, P=0.005 and 0 vs 66%, P=0.002, respectively). Our data show that the extent of donor-type chimerism in lineage-specific cells appears to have an impact on outcome after allogeneic stem cell transplantation.
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Affiliation(s)
- Y Miura
- Department of Hematology and Oncology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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122
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Yamada N, Ishikura K, Ota S, Tsuji A, Nakamura M, Ito M, Isaka N, Nakano T. Pulse-spray Pharmacomechanical Thrombolysis for Proximal Deep Vein Thrombosis. Eur J Vasc Endovasc Surg 2006; 31:204-11. [PMID: 16169262 DOI: 10.1016/j.ejvs.2005.08.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2005] [Accepted: 08/14/2005] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the efficacy, safety, and feasibility of pulse-spray pharmacomechanical thrombolysis to treat proximal deep vein thrombosis (DVT) in conjunction with the placement of a non-permanent IVC filter. METHODS We studied 31 consecutive patients with acute proximal DVT defined as the inferior vena cava (IVC), iliac vein and/or femoral vein, who were diagnosed using duplex ultrasonography and/or contrast venography. All were treated with pulse-spray urokinase. Early success was assessed by comparing the pre- and post-treatment venographic severity score. Non-permanent IVC filters were used to reduce the risk of pulmonary thromboembolism. RESULTS The average total urokinase dose was 1.71 million IU (range: 0.72-3.6 million IU) and the average duration of therapy was 2.4 days. The average percentage of thrombus lysed was 85% (range: 22-100%). A large thrombus trapped by the filter was detected using cavography before extraction of the filter in one patient. There was no major treatment-related adverse event. CONCLUSION The combination of pulse-spray pharmacomechanical thrombolysis and the prophylactic use of a non-permanent IVC filter was a safe and effective approach for treating acute proximal DVT.
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Affiliation(s)
- N Yamada
- First Department (Cardiovascular Division) of Internal Medicine, Mie University School of Medicine, Tsu, Mie, Japan.
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123
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Toubai T, Tanaka J, Hirate D, Ota S, Sugita J, Miura Y, Kato N, Kondo K, Iwao N, Asaka M, Imamura M. Chimerism and T cell receptor repertoire analysis after unrelated cord blood transplantation with a reduced-intensity conditioning regimen following autologous stem cell transplantation for multiple myeloma. Biol Blood Marrow Transplant 2006. [DOI: 10.1016/j.bbmt.2005.11.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Okada T, Sasaki F, Cho K, Itoh T, Ota S, Todo S. Histological differentiation between prenatally diagnosed choledochal cyst and type I cystic biliary atresia using liver biopsy specimens. Eur J Pediatr Surg 2006; 16:28-33. [PMID: 16544223 DOI: 10.1055/s-2006-923927] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Because it is difficult to distinguish preoperatively between prenatally diagnosed choledochal cyst (CC) and type I cystic biliary atresia (BA) by ultrasound scanning or magnetic resonance imaging (MRI), some modality of discrimination for the 2 entities is required. The aim of this study was to investigate the histological differences between prenatally diagnosed CC and type I cystic BA using liver biopsy specimens. Four children with prenatally diagnosed CC and two children with prenatally diagnosed type I cystic BA were identified by fetal ultrasonography between 1985 and 2003. The control group included two children who were operated on at an earlier period due to postnatally diagnosed BA. Liver wedge biopsy in the right lobe was performed at the time of the radical operation. Histological findings of the H & E-stained liver biopsy specimens were classified into 4 grades (Grade 0, no abnormality; Grade 1, ductular proliferation without bridging fibrosis; Grade 2, ductular proliferation with bridging fibrosis; and Grade 3, liver cirrhosis). The CC group consisted of one case of Grade 0 and three cases of Grade 1. The type I cystic BA group consisted of one case each of Grade 2 and Grade 3. In the control group, both cases were Grade 2. The authors suggest that exploratory laparotomy might be avoided and, instead, histologic examination using liver biopsy specimens can be a reliable test for the differential diagnosis of CC and type I cystic BA in prenatally diagnosed neonates.
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Affiliation(s)
- T Okada
- Department of Pediatric Surgery, First Surgery, Hokkaido University School of Medicine, Nidhi, Sapporo, Japan.
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125
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Okada T, Sasaki F, Takahashi H, Taguchi K, Takahashi M, Watanabe K, Itoh T, Ota S, Todo S. Management of childhood and adolescent thyroid carcinoma: long-term follow-up and clinical characteristics. Eur J Pediatr Surg 2006; 16:8-13. [PMID: 16544219 DOI: 10.1055/s-2006-923795] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [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: 10/24/2022]
Abstract
AIM This analysis was performed to evaluate clinical factors such as local tumor control, control of distant metastasis, survival, and complications in children and adolescents with thyroid carcinoma. MATERIALS AND METHODS From 1960 to 2003, 21 children and adolescents (16 girls and 5 boys, aged 4 to 15 years) were treated for thyroid carcinoma in our departments. Clinical data, operative findings, pathological findings, operative procedures, intra- and postoperative complications and follow-up were evaluated. Follow-up of patients ranged from 3 to 42 years (median, 20 years). RESULTS Papillary carcinoma was found in 20 patients (95%) and follicular carcinoma in one patient. Cervical lymph node metastases were found in 12 out of 21 patients (57.1%) when thyroid carcinoma was diagnosed, and 5 patients (23.8%) had pulmonary metastasis. In patients with pulmonary metastasis, total thyroidectomy and bilateral radical lymph node resection was performed in 3 patients, lobectomy of the thyroid and radical lymph node resection in one patient, and partial thyroidectomy in one patient. All three patients who underwent total thyroidectomy are still alive. Internal irradiation by 131I and thyroid hormone replacement therapy was administered to 2 of 3 patients with pulmonary metastasis. CONCLUSION Despite metastasis in the lymph nodes and even the lungs, the prognosis for patients with papillary carcinoma is good. Total thyroidectomy and positive 131I therapy are recommended for childhood and adolescent thyroid carcinoma with pulmonary metastasis.
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Affiliation(s)
- T Okada
- Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Nishi, Sapporo, Japan.
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126
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Hirose M, Ota S, Ishibashi H. [Surgical indication for non-small cell lung cancer with synchronous distant metastases]. Kyobu Geka 2006; 59:15-20. [PMID: 16440679] [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: 05/06/2023]
Abstract
From 1989 to 2004, 20 patients with synchronous distant metastases [intrapulmonary metastases (n=10) and extrapulmonary metastases (n=10)] underwent surgery for primary lesion of non-small cell lung cancer (NSCLC). Complete resection of the primary tumor and metastases was achieved in 5 patients. Overall 1- and 2-year survival rates were 48 and 11%, respectively, and mean survival was 21 months. The corresponding figures for patients with pulmonary metastasis to another lobe were 78, 23%, and 35 months, and those for patients with distant metastasis to a site other than another pulmonary lobe were 20, 0%, and 7 months. Two patients with pulmonary metastasis survived more than 5 years. With pulmonary metastasis to another lobe prognosis was better than that with distant metastasis to another site. Survival was not affected by histology or N factor. Complete resection tended to be a factor contributing to a better clinical outcome. This study suggests that surgery for NSCLC with synchronous distant metastasis should be indicated only for patients who could be expected to undergo complete excision of both the primary and metastasis lesion, as a clinical study under informed consent.
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Affiliation(s)
- M Hirose
- Department of Thoracic Surgery, Shizuoka General Hospital, Shizuoka, Japan
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127
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Ramanan AV, Campbell-Webster N, Ota S, Parker S, Tran D, Tyrrell PN, Cameron B, Spiegel L, Schneider R, Laxer RM, Silverman ED, Feldman BM. The effectiveness of treating juvenile dermatomyositis with methotrexate and aggressively tapered corticosteroids. ACTA ACUST UNITED AC 2005; 52:3570-8. [PMID: 16255046 DOI: 10.1002/art.21378] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Childhood dermatomyositis (DM) is often a chronic disease, lasting many years. It has traditionally been treated with long-term corticosteroid therapy; side effects are often seen. For more than a decade, methotrexate (MTX) has been safely used for the treatment of juvenile arthritis. Here, we report use of MTX as first-line therapy for DM, along with aggressively tapered corticosteroids, in an attempt to reduce treatment-related side effects. METHODS We studied an inception cohort of 31 children with DM who were rigorously followed up in our myositis clinic, and compared them with a control group of 22 patients with incident cases of juvenile DM who received treatment just before we instituted a policy of first-line therapy with MTX. The mean starting dosage of MTX in the study group was 15 mg/m(2)/week. RESULTS Both groups had similar improvement in strength and physical function; however, the median time during which patients in the study group received corticosteroids was 10 months, compared with 27 months for controls (P < 0.0001). As a result, the cumulative prednisone dose in the study group was approximately half that in the control group (7,574 mg versus 15,152 mg; P = 0.0006). The study group had greater height velocity during the first year of treatment and a smaller increase in the body mass index over the first 2 years. In the control group, the relative risk of cataracts developing was 1.95 (95% confidence interval 1.05-4.17). Side effects of MTX were rarely observed. CONCLUSION Use of MTX in conjunction with an aggressively tapered course of prednisone may be as effective as traditional long-term corticosteroid therapy for children with DM, while decreasing the cumulative dose of corticosteroids.
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Affiliation(s)
- A V Ramanan
- Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada
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128
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Ramanan AV, Schneider R, Batthish M, Achonu C, Ota S, McLimont M, Young NL, Feldman BM. Developing a disease activity tool for systemic-onset juvenile idiopathic arthritis by international consensus using the Delphi approach. Rheumatology (Oxford) 2005; 44:1574-8. [PMID: 16159950 DOI: 10.1093/rheumatology/kei095] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES The systemic form of juvenile idiopathic arthritis may present with many diverse symptoms, signs and laboratory abnormalities. Our aim was to elicit and pool items useful for developing a consensus disease activity measure for systemic arthritis in children, using an international pool of respondents. METHODS We used a Delphi survey process in two steps. First we surveyed 187 paediatric rheumatologists and allied health professionals. We elicited 2607 items that, when combined with previously elicited items from parents/patients, could be pooled into 107 independent items. We then surveyed the paediatric rheumatologists to determine the frequency and importance of the 107 items. RESULTS Our response rate was 83% to both surveys. We identified 29 items as being the most important and most frequently seen indicators of active disease. The most highly rated of these items were: presence of fever, presence of rash, elevated ESR, elevated CRP, requirement for increasing medications, abnormal physician global evaluation and presence of joints with active arthritis. CONCLUSIONS Twenty-nine items are thought by medical practitioners to be most relevant in determining disease activity in systemic arthritis. As a next step, the measurement properties of these items will be tested to help develop a disease activity tool.
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Affiliation(s)
- A V Ramanan
- Department of Pediatrics, Division of Rheumatology, The Hospital for Sick Children, Toronto, ON, Canada
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129
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Abstract
Biliary atresia (BA) is occasionally diagnosed in infants whose first symptom is a bleeding disorder, such as intracranial bleeding, nasal bleeding or gastrointestinal bleeding. The authors describe 3 cases in which a bleeding disorder was the first symptom of BA. The presenting symptom was intracranial bleeding in a male on day 55 after birth, nasal bleeding in a female at 65 days, and gastrointestinal bleeding in a female at 25 days. Coagulation studies revealed a vitamin K deficiency in all patients. After the administration of vitamin K, the results of coagulation tests normalized and the bleeding tendency of the infants ceased. Subsequently, BA was suspected to be the cause of these bleeding disorders based on imaging findings. BA should therefore be considered in all infants with sudden onset of a tendency to bleed.
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Affiliation(s)
- T Okada
- Department of Pediatric Surgery, Pathology and First Surgery, Hokkaido University School of Medicine, Sapporo, Japan.
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130
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Nathan PC, Tomlinson G, Dupuis LL, Greenberg ML, Ota S, Bartels U, Feldman BM. A pilot study of ondansetron plus metopimazine vs. ondansetron monotherapy in children receiving highly emetogenic chemotherapy: a Bayesian randomized serial N-of-1 trials design. Support Care Cancer 2005; 14:268-76. [PMID: 16052316 DOI: 10.1007/s00520-005-0875-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2005] [Accepted: 07/12/2005] [Indexed: 10/25/2022]
Abstract
GOALS OF WORK Chemotherapy-induced nausea and vomiting is problematic in paediatric brain tumour treatment protocols which often discourage the use of corticosteroids as anti-emetics. The dopamine receptor antagonist, metopimazine, is an effective anti-emetic in combination with ondansetron in adults. The present study was designed to assess its efficacy in children with cancer, a group in which it has not been studied previously. PATIENTS AND METHODS We conducted a series of randomized, multiple-crossover, double-blind, placebo-controlled N-of-1 trials comparing ondansetron/metopimazine with ondansetron monotherapy in children with brain tumours receiving highly emetogenic therapy and combined the individual results using Bayesian statistical modeling. MAIN RESULTS Ten of twelve enrolled patients completed at least one chemotherapy cycle on study (median=2.5 cycles, range 1-11). Two patients were unable to complete any cycles, and a further three patients withdrew from the study prior to completing all cycles because of an inability to tolerate the taste of the study drug. Combination therapy increased the proportion of days during which patients had no emesis (overall odds ratio=1.52, 95% credible region=0.32-6.40, probability of odds ratio>1=72%), decreased the number of emetic episodes per day (overall rate ratio=0.67, 95% credible region=0.15-3.14, probability of rate ratio<1=75%) and decreased parents' ratings of their child's distress. The drug was more effective during the delayed chemotherapy phase than the acute phase. No adverse events were attributed to metopimazine. CONCLUSIONS Based on this pilot study, we believe that the high likelihood that metopimazine is an effective adjunct to ondansetron monotherapy suggests that this combination therapy is worthy of further study in children receiving emetogenic chemotherapy.
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Affiliation(s)
- P C Nathan
- Division of Haematology/Oncology, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, M5G 1X8, Canada.
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131
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Nakashima S, Arai S, Mizuno Y, Yoshino K, Ando S, Nakamura Y, Sugawara K, Koike M, Saito E, Naito M, Nakao M, Ito H, Hamaoka K, Rai F, Asakura Y, Akamatu M, Fujimori K, Inao M, Imai Y, Ota S, Fujiwara K, Shiibashi M. A clinical study of Japanese patients with ulcer induced by low-dose aspirin and other non-steroidal anti-inflammatory drugs. Aliment Pharmacol Ther 2005; 21 Suppl 2:60-6. [PMID: 15943849 DOI: 10.1111/j.1365-2036.2005.02476.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND The incidence and severity of non-steroidal anti-inflammatory drugs (NSAIDs)-induced gastro-duodenal ulcer have not been extensively studied in Japan. AIM We performed a prospective study to clarify NSAIDs-induced gastro-duodenal injury, focusing especially on low-dose aspirin (L-A). METHODS Two hundred and thirty-eight patients with bleeding peptic ulcers admitted to our hospital. History of taking NSAIDs and anti-ulcer drugs was obtained from all patients who underwent endoscopic examinations. The lesion scores of patients taking L-A were classified numerically from zero (no lesion) to five (ulcer). RESULTS The NSAIDs were associated with 28.2% of hemorrhagic ulcers. The rates of patients using L-A, loxoprofen, diclofenac, and combination of two of these drugs were 27, 16, 10 and 9%, respectively. Co-administered anti-ulcer drugs were cytoprotective anti-ulcer drugs (27%), H2 receptor antagonists (16%), PPI (4%), and none (53%). In patients taking L-A, H2 receptor antagonists were used most frequently. The HP was positive in 63% of L-A-induced ulcer cases and in 69% of NSAIDs other than low-dose aspirin-induced ulcer cases. The lesion scores of patients taking L-A with H2 receptor antagonists or PPI were significantly lower than those of patients who were taking only L-A (P < 0.05). CONCLUSIONS Approximately one-third of hospitalized patients with NSAIDs-induced hemorrhagic ulcer showed an association with L-A. Prospective randomized controlled trials including H2 receptor antagonists are required to establish preventive efforts aimed at L-A-induced gastro-duodenal injury.
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Affiliation(s)
- S Nakashima
- Department of Gastroenterology & Hepatology, Saitama Medical School, Iruma-gun, Saitama, Japan.
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132
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Tanaka J, Iwao N, Toubai T, Tsutsumi Y, Miura Y, Kato N, Shigematsu A, Yamane M, Ota S, Kondo T, Kobayashi T, Takeda H, Kobayashi M, Asaka M, Imamura M. Cytolytic activity against primary leukemic cells by inhibitory NK cell receptor (CD94/NKG2A)-expressing T cells expanded from various sources of blood mononuclear cells. Leukemia 2004; 19:486-9. [PMID: 15618959 DOI: 10.1038/sj.leu.2403611] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
MESH Headings
- Antigens, CD/immunology
- Cells, Cultured
- Cytotoxicity, Immunologic
- Humans
- K562 Cells
- Killer Cells, Natural/immunology
- Lectins, C-Type/immunology
- Leukocytes, Mononuclear/cytology
- Leukocytes, Mononuclear/immunology
- NK Cell Lectin-Like Receptor Subfamily C
- NK Cell Lectin-Like Receptor Subfamily D
- Neoplastic Stem Cells/immunology
- Receptors, Immunologic/immunology
- Receptors, Natural Killer Cell
- T-Lymphocytes, Cytotoxic/immunology
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133
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Ota S, Ota T, Goto K, Inoue I, Ota T. Endovascular treatment of acute embolism of the major cerebral arteries. The value of balloon disruption of the embolus. Interv Neuroradiol 2004; 10:213-23. [PMID: 20587233 DOI: 10.1177/159101990401000303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2004] [Accepted: 07/18/2004] [Indexed: 11/16/2022] Open
Abstract
SUMMARY This study evaluated: 1) the effect of recanalization on changing clinical outcome, 2) the relationship between dose of Urokinase (UK) and incidence of recanalization and intracranial haemorrhage, and 3) the efficacy and feasibility of balloon disruption (BD) in the treatment of acute cerebral embolism. Sixty-one patients with acute embolism of the major cerebral arteries treated by endovascular approaches over the past nine years were retrospectively evaluated. Among them, 30 cases were treated by BD alone or in conjunction with intra- arterial fibrinolysis in the last five years. The other 31 cases, mostly treated in the first four years, were treated with intra-arterial fibrinolysis alone and were used as controls to evaluate the efficacy of BD. Control angiography was performed just after the reperfusion procedure to evaluate the degree of recanalization. Angiographic responses were graded using modified Thrombolysis in Myocardial Infarction (TIMI) criteria. Clinical outcome was evaluated using modified Rankin Scale (mRS) score at the time of discharge. Thirty-six of the 61 patients (59.0%) achieved high-grade recanalization (TIMI grade 3). Significantly more patients attained favorable outcome (mRS score 0-1) in the high-grade recanalization group than the low-grade recanalization group (41.7% vs. 16.0%, p < 0.05). Concerning patients treated with BD, significantly more patients attained good recanalization and significantly more patients were ambulatory (mRS score 0-3) than those treated with intra-arterial fibrinolysis alone (76.7% vs. 41.9%, p < 0.01; 70.0% vs. 41.9%, p < 0.05, respectively). A significantly lower dose of UK was used, and relatively less intracranial haemorrhage was seen in patients treated with BD than those treated with intra- arterial fibrinolysis (194,000 +/- 191,000 units vs. 388,000 +/- 231,000 units, p=0.001; 16.7% vs. 38.7%, p=0.055, respectively). Concerning morbidity and mortality of BD, there was one death caused by dissection of the M2 portion of the middle cerebral artery (MCA) that happened during BD on a distally migrated embolus. Although no conclusions can be drawn from our study, a favorable outcome for acute embolism of the major cerebral arteries is expected by attaining good recanalization. In addition, BD is an effective technique that can achieve high-grade recanalization alone, or reducing the dose of fibrinolytic agent.
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Affiliation(s)
- S Ota
- Departmental and institutional affiliation, 1-5: Brain Attack Center Oota Memorial Hospital, Fukuyama, Hiroshima; Japan -
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134
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Flores J, Shiiya N, Matsuzaki K, Kunihara T, Ota S, Yasuda K. Stenosis of the abdominal aorta caused by fibromuscular dysplasia. INT ANGIOL 2004; 23:288-90. [PMID: 15765046] [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: 05/02/2023]
Abstract
Fibromuscular dysplasia of the aorta is an exceedingly rare disease with 26 cases reported to date in Medline. We present a case of stenosis of the infrarenal abdominal aorta in a 49-year-old woman with a history of intermittent claudication. The patient underwent aortic endarterectomy, and subsequent anatomopathologic examination of the specimen revealed fibromuscular dysplasia. The possible causes of aortic stenosis in this case, its angiographic findings, and the alternatives of treatment are discussed.
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Affiliation(s)
- J Flores
- Departament of Cardiovascular Surgery, Hokkaido University School of Medicine, Hokkaido, Japan
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135
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Suzuki S, Inaba K, Yokoi Y, Ohata K, Ota S, Azuma M, Tanaka T, Konno H, Baba S, Hirano T, Nakamura S. Photodynamic therapy for malignant biliary obstruction: a case series. Endoscopy 2004; 36:83-7. [PMID: 14722861 DOI: 10.1055/s-2004-814122] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We describe four elderly patients (age range 73-85 years) with bile duct carcinoma who were treated with photodynamic therapy. These patients could not be treated surgically because of the presence of cardiopulmonary disease and the extent of the bile duct carcinoma. Prior to photodynamic treatment the patients underwent percutaneous transhepatic biliary drainage (PTBD) to relieve jaundice. The photodynamic therapy was carried out under percutaneous transhepatic cholangioscopy, 2 days after intravenous administration of sodium porfimer (2 mg/kg). Excimer dye laser was used to irradiate the obstructive lesion with an energy dosage of 50 J/cm2 (total irradiation dose 150-250 J/cm2) and stenotic site with a dosage of 50-100 J/cm2. Photodynamic therapy was achieved safely without occurrence of cholangitis in all patients, and was followed by metallic stent placement, resulting in the improvement of performance levels in three patients who did not have liver metastases. Photodynamic therapy via the PTBD route is a safe and promising palliative therapy for selected elderly patients with bile duct carcinoma.
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Affiliation(s)
- S Suzuki
- Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.
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136
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Bamba H, Ota S, Arai S, Ban S, Shimizu M, Imai Y, Kawamoto C, Yoshida Y, Fujiwara K. Expression of cyclooxygenase-2 in human hyperplastic gastric polyps. J Exp Clin Cancer Res 2003; 22:425-30. [PMID: 14582702] [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: 04/27/2023]
Abstract
Cyclooxygenase (COX)-2, an inducible isoform of prostaglandin synthetase, has been reported to be a key molecular target of colon cancer prevention by nonsteroidal anti-inflammatory drugs. Recently, it has been shown that Helicobacter pylori (H. pylori) could induce COX-2 together with inflammatory cytokines. Although human hyperplastic gastric polyps disappeared or decreased in number and size after eradication of H. pylori, the mechanisms in this step, especially the roles of COX-2, have not been yet elucidated. The aims of the present study were to examine the expression and localization of COX-2 in human hyperplastic gastric polyps immunohistochemically. Twelve specimens of human hyperplastic gastric polyps were obtained from endoscopic polypectomy. The expression of the COX-2 protein was immunohistochemically examined on formalin-fixed and paraffin-embedded tissue sections using an anti-COX-2 antibody and an avidin-biotin complex method. Cells expressing COX-2 were further immunohistochemically identified using a specific antibody against macrophages (CD68), and myofibroblasts (alpha-smooth muscle actin). Immunoreactive COX-2 was predominantly and strongly expressed in interstitial cells in the sub-epithelial layer of 10 hyperplastic polyps. Semi-quantitative analysis revealed a significant increase in COX-2 expression in interstitial cells. The staining pattern of macrophages and myofibroblasts partly corresponded to that observed for COX-2 in hyperplastic gastric polyps. These results suggest that COX-2 in mesenchymal cells induced by H. pylori may play an important role in the tumorigenesis of human hyperplastic gastric polyps.
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Affiliation(s)
- H Bamba
- First Dept. of Internal Medicine, Saitama Medical Center, Saitama Medical School, Kamoda Kawagoe, Saitama, Japan.
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137
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Bamba H, Ota S, Kato A, Miyatani H, Kawamoto C, Yoshida Y, Fujiwara K. Effect of rebamipide on prostaglandin receptors-mediated increase of inflammatory cytokine production by macrophages. Aliment Pharmacol Ther 2003; 18 Suppl 1:113-8. [PMID: 12925148 DOI: 10.1046/j.1365-2036.18.s1.13.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
BACKGROUND Rebamipide (Reb) is an anti-ulcer drug, and has unique properties such as anti-inflammatory action. We previously reported that prostaglandins (PGs) dramatically increased vascular endothelial growth factor (VEGF), a known angiogenic factor and a vascular permeable factor, by activated macrophages through specific PGE receptor and peroxisome proliferator-activated receptor gamma (PPARgamma, a nuclear receptor of PG) mediated process. Effects of PGs on the production of other cytokines such as interleukin (IL)-6 and IL-8 have been controversial. AIM To clarify the anti-inflammatory roles of Reb, we examined the effect of Reb on PGE1- and 15-deoxy-Delta12, 14-PGJ2 (a potent PPARgamma ligand, 15d-PGJ2) -induced increase of VEGF production by macrophages. Additionally, effects of these PGs on the production of IL-6 and IL-8, and modulation of these actions by Reb were studied. METHODS Phorbol 12-myristate 13-acetate-differentiated U937 cells were used as a human macrophage model (H-Mac). VEGF, IL-6, IL-8 and cAMP were measured by EIA. RESULTS Reb suppressed PGE1-, but not 15d-PGJ2-, induced increase of VEGF production partially through decrease of cAMP formation. Reb suppressed PGE1 -, but not 15d-PGJ2-, induced increase of IL-6 and IL-8 production. CONCLUSION Reb suppresses membrane, but not nuclear PG receptors mediated increase of inflammatory cytokine production, which may be involved in anti-ulcer action of this drug.
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Affiliation(s)
- H Bamba
- First Department of Internal Medicine, Saitama Medical Center, Saitama Medical School, Saitama, Japan.
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138
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Kusaka K, Shimamura I, Ohashi Y, Ota S. Long term survival of patient with invasive aspergillosis involving orbit, paranasal sinus, and central nervous system. Br J Ophthalmol 2003; 87:791-2. [PMID: 12770986 PMCID: PMC1771718 DOI: 10.1136/bjo.87.6.791] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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139
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Kato N, Tanaka J, Mori A, Tutumi Y, Yonezumi M, Chiba K, Kondo T, Toyoshima N, Ota S, Hashino S, Asaka M, Imamura M. The risk of persistent carriage of methicillin-resistant Staphylococcus aureus in hematopoietic stem cell transplantation. Ann Hematol 2003; 82:310-2. [PMID: 12709827 DOI: 10.1007/s00277-003-0626-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2002] [Accepted: 01/25/2003] [Indexed: 10/25/2022]
Abstract
The clinical course of hematopoietic stem cell transplantation (HSCT) recipients was retrospectively analyzed to determine whether carriage of methicillin-resistant Staphylococcus aureus (MRSA) is a risk factor for MRSA infection during the neutropenic period. We studied four patients in whom MRSA colonies developed before HSCT. Two patients were previously diagnosed as having MRSA infection and two were carriers of MRSA. We tried to eliminate MRSA before HSCT and succeeded in eradication in two patients. MRSA infection did not develop in one patient who received prophylactic administration of vancomycin (VCM), but MRSA-induced phlegmon developed during neutropenia in one patient who did not receive prophylaxis. Of the other two patients who had been persistently positive for MRSA, MRSA did not develop in one patient who received prophylaxis, but the another patient who did not receive prophylaxis died from MRSA-induced sepsis in the early post-transplant period. We therefore recommend that MRSA be eliminated by prophylactic administration of anti-MRSA drugs such as VCM before HSCT when patients have persistent MRSA.
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Affiliation(s)
- N Kato
- Department of Hematology and Oncology, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, 060-8638, Sapporo, Japan
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140
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Hashino S, Mori A, Suzuki S, Izumiyama K, Kahata K, Yonezumi M, Chiba K, Kondo T, Ota S, Toyashima N, Kato N, Tanaka J, Imamura M, Asaka M. Platelet recovery in patients with idiopathic thrombocytopenic purpura after eradication of Helicobacter pylori. Int J Hematol 2003; 77:188-91. [PMID: 12627857 DOI: 10.1007/bf02983220] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The relationship between Helicobacter pylori infection and idiopathic thrombocytopenic purpura (ITP) has been investigated in several studies. We investigated the prevalence of H. pylori infection and the clinical effects of eradication in 22 Japanese patients with chronic ITP. H. pylori infection was found in 14 (63.6%) of the patients by histologic and culture examinations of biopsy samples obtained by gastrointestinal endoscopy. H. pylori was eradicated by proton pump inhibitors and 2 kinds of antibiotics in 13 (92.9%) of the 14 patients in whom the results of treatment could be evaluated. Five (38.4%) of those 13 patients had platelet recovery (platelet count of more than 100 x 10(9)/L and an increase of more than 30 x 10(9)/L with respect to the baseline value) after eradication. The median follow-up period was 15 months. One patient who had a complete response had a partial relapse after cessation of prednisolone treatment without any evidence of H. pylori reinfection. Another patient, in whom H. pylori was not eradicated even after 2 treatment sessions, had a partial response after treatment. A screening examination for H. pylori infection may be necessary for Japanese patients with newly diagnosed ITP. Although the exact mechanism underlying platelet recovery after H. pylori eradication is not clear, the results of this study indicated that H. pylori eradication treatment is a good option for some patients with chronic ITP.
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Affiliation(s)
- S Hashino
- Department of Gastroenterology and Hematology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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141
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Maeda Y, Kuzuya T, Ota S, Yamada K, Kobayashi T, Hayashi S, Yokoyama I, Nakao A, Nabeshima T. Absorption of cyclosporine (Neoral) from a microemulsion formulation in a living donor liver transplant recipient. Transplant Proc 2002; 34:2784-7. [PMID: 12431611 DOI: 10.1016/s0041-1345(02)03413-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Y Maeda
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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142
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Shundo Y, Ota S, Inaba H, Eto T, Honda A, Suzuki M, Muro H. [Angiosarcoma arised from a solitary schwannoma of the chest wall]. Kyobu Geka 2002; 55:847-51. [PMID: 12233103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Angiosarcomas rarely develop within a peripheral nerve or a peripheral nerve sheath tumor. A 68-year-old woman was admitted for right hemothorax. She had suffered from the left thoracic empyema and the right chest wall tumor which had been regarded as schwannoma clinically. Anemia got serious due to continuous bloody effusion. Although bleeding point was not detected by thoracotomy. The right chest wall tumor was resected. Postoperatively bloody effusion still drained continuously, she died ten days after the operation. Resected tumor was almost necrotized. The tumor was diagnosed as angiosarcoma pathologically, in which a part of schwannoma component resided. It is indicated that angiosarcoma in this case arised from degenerated schwannoma. It is necessary to consider angiosarcoma, rarely arised from degenerated schwannoma, during conservative, long-term observation on the care of schwannoma.
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Affiliation(s)
- Y Shundo
- Department of Thoracic Surgery, Shizuoka General Hospital, Fujieda, Japan
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143
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Abstract
Epidemiological, experimental, and clinical studies have demonstrated that colon carcinogenesis may be prevented by nonsteroidal anti-inflammatory drugs (NSAIDs). Although controversy remains, recent studies, including ours, have revealed that NSAIDs suppress colon carcinogenesis at the adenoma stage where cyclooxygenase-2 (COX-2), a major molecular target in this action, is mainly expressed in interstitial cells but not in tumour cells. Therefore, it is unlikely that NSAIDs prevent colon cancer formation through modulating the functions of tumour cells. A more possible assumption is that NSAIDs suppress colon carcinogenesis through the inhibition of prostaglandin formation. However, the mechanisms by which prostanoids promote colon carcinogenesis have not been elucidated to date. A prostanoids act through both membrane receptors and nuclear receptors such as peroxisome proliferator receptor (PPAR) gamma or delta, one focus in this area is to investigate their roles in colon carcinogenesis, including the induction of growth factors.
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Affiliation(s)
- S Ota
- Third Department of Internal Medicine, Saitama Medical School, Moroyama-machi, Iruma-gum, Japan.
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144
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Ota S, Inaba H, Yoshida H. [Rational lymph node dissection for lung cancer according to the occurrence lobe and histological type]. Kyobu Geka 2001; 54:1073-8; discussion 1078-81. [PMID: 11761888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Between January 1989 and December 1998, 134 cases of squamous cell carcinoma and 244 cases of adenocarcinoma underwent surgical resection of the lung with systematic lymph node dissection in our hospital. The cN diagnosis by CT scan and pN diagnosis were compared. In squamous cell carcinoma pN 2-3 cases were only one patient (2%) out of 60 patients with cN 0, 5 patients (18%) out of 28 patients with cN 1, and 21 patients (46%) out of 46 patients with cN 2-3. On the other hand in adenocarcinoma pN 2-3 cases were 27 patients (14%) out of 193 patients with cN 0, 3 patients (25%) out of 12 patients with cN 1, and 24 patients (62%) out of 39 patients with cN 2-3. The pathways of the lymphatic metastases to the mediastinal nodes were analized in 27 patients with squamous cell carcinoma and 54 patients with adenocarcinoma undergoing systematic lymph node dissection. All patients had histologically proven mediastinal metastasis. Histologically there was no difference in pathways of the lymphatic metastases to the mediastinal nodes. 1. The dominant lymphatic drainage from the right upper lobe flowed into the superior mediastinal nodes. The direct metastatic passages to the superior mediastinal nodes were observed (47%). Subcarinal and inferior mediastinal node involvement was rare (3%). 2. The dominant lymphatic drainage from the middle and the lower lobe flowed into the subcarinal nodes (85%). The involvement of the superior mediastinal nodes occurred in 53% of subcarinal node positive patients on the right side. 3. The dominant lymphatic drainage from the left upper lobe flowed into the subaortic or paraaortic nodes (69%). Subcarinal and inferior mediastinal node involvement was rare (6%). We conclude that subcarinal and inferior mediastinal lymph node dissection is not necessary for upper lobe lung cancers, and that superior mediastinal lymph node dissection can be omitted in middle and lower lobe lung cancers without hilar and subcarinal lymph node involvement, especially in the cases of cN 0.
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Affiliation(s)
- S Ota
- Department of Thoracic Surgery, Shizuoka General Hospital, Shizuoka, Japan
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145
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Shundo Y, Ota S, Inaba H, Hirose M, Eto T, Honda A. [A case of right pneumonectomy and omentopexy for lung cancer after preoperative irradiation]. Kyobu Geka 2001; 54:1091-5. [PMID: 11761891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
A 72-year-old man complaining of cough rejected the operation for squamous cell carcinoma obstructing the right intermediate trunk, therefore he was received 82 Gy (40 Gy and 42 Gy) of radiotherapy. However, the tumor did not decrease, in addition, cough and purulent sputum became severe gradually. We performed right pneumonectomy and omentopexy to prevent bronchial fistula, he had no pulmonary complication. Radiotherapy is a risk factor for postoperative bronchial fistula, omentopexy is useful to prevent it.
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Affiliation(s)
- Y Shundo
- Department of Thoracic Surgery, Shizuoka General Hospital, Shizuoka, Japan
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146
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Abstract
While the maximum-likelihood (ML) method of tree reconstruction is statistically rigorous, it is extremely time-consuming for reconstructing large trees. We previously developed a hybrid method (NJML) that combines the neighbor-joining (NJ) and ML methods and thus is much faster than the ML method and improves the performance of NJ. However, we considered only nucleotide sequence data, so NJML is not suitable for handling amino acid sequence data, which requires even more computer time. NJML+ is an implementation of a further improved method for practical data analyses (including protein sequence data). Our extensive simulations using nucleotide and amino acid sequences showed that NJML+ gave good results in tree reconstruction. Indeed, NJML+ showed substantial improvements over existing methods in terms of both computational times and efficiencies, especially for amino acid sequence data. We also developed a "user-friendly" interface for the NJML+ program, including a simple tree viewer.
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Affiliation(s)
- S Ota
- Department of Ecology and Evolution, University of Chicago, Illinois 60637, USA
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147
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Carlson H, Ota S, Campbell CE, Hurlin PJ. A dominant repression domain in Tbx3 mediates transcriptional repression and cell immortalization: relevance to mutations in Tbx3 that cause ulnar-mammary syndrome. Hum Mol Genet 2001; 10:2403-13. [PMID: 11689487 DOI: 10.1093/hmg/10.21.2403] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mutations in Tbx3 are responsible for ulnar-mammary syndrome (UMS), an autosomal dominant disorder affecting limb, tooth, hair, apocrine gland and genital development. Tbx3 is a member of a family of transcription factors that share a highly conserved DNA-binding domain known as the T-domain. UMS-causing mutations in Tbx3 have been found at numerous sites within the TBX3 gene, with many occurring downstream from the N-terminally located T-domain. The occurrence of mutations downstream of the DNA-binding domain raises the possibility that there exist important functional domains in C-terminal portions of the Tbx3 protein that affect its behavior as a transcription factor. To determine if and how such C-terminal mutations affect transcription we have mapped regions that confer transcriptional activity and nuclear localization and characterized the DNA binding properties of Tbx3. We find that Tbx3 binds the canonical Brachyury binding site as a monomer and represses transcription. We show that a key repression domain (RD1) resides in the Tbx3 C-terminus that can function as a portable repression domain. Most UMS-associated C-terminal mutants lack the RD1 and exhibit decreased or loss of transcriptional repression activity. In addition, we identify a domain responsible for nuclear localization of Tbx3 and show that two C-terminal mutants of Tbx3 have increased rates of protein decay. Finally, we show that Tbx3 can immortalize primary embryo fibroblasts and that the RD1 repression domain is required for this activity. Our results identify critical functional domains within the Tbx3 protein and facilitate interpretation of the functional consequences of present and future UMS mutations.
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Affiliation(s)
- H Carlson
- Shriners Hospitals for Children and Department of Cell and Developmental Biology, Oregon Health Sciences University, 3101 Sam Jackson Park Road, Portland, OR 97201, USA
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148
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Ota S, Sugiyama T, Komai K, Hirai N, Kumagai S, Ushijima K, Nishida T, Kamura T. Weekly 1 hour paclitaxel infusion in patients with recurrent gynecological tumors: a pilot study. Jpn J Clin Oncol 2001; 31:395-8. [PMID: 11574633 DOI: 10.1093/jjco/hye077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Intensifying the dose of paclitaxel given in a weekly schedule is useful towards improving the therapeutic index of paclitaxel in treating a variety of advanced and recurrent malignancies and is suitable for outpatient administration. This pilot study was carried out to evaluate the safety of weekly paclitaxel administration by 1 h infusion in the outpatient setting. METHODS Eleven patients with recurrent gynecological tumors who had previously been treated with at least one platinum-based chemotherapy regimen participated in the study between May 1999 and March 2000. Paclitaxel was given at a dose of 70 mg/m(2 ) as a 1 h infusion every week for at least 20 consecutive weeks unless lesions became progressive. Intravenous dexamethasone and cimetidine and oral diphenhydramine were administered 30 min before paclitaxel infusion. RESULTS The 11 patients received a total of 166 cycles of therapy. All patients received 70 mg/m(2 ) doses of paclitaxel without treatment delay. No hypersensitivity reactions were elicited. Grade 3 or 4 leukopenia and neutropenia occurred in 9 and 36% of the patients, respectively. Granulocyte colony-stimulating factor was required for only one patient and no patients experienced febrile neutropenia. Neurotoxicity was the most serious adverse effect and all patients experienced grade 1 or 2 peripheral neuropathy. Grade 1 or 2 myalgias were observed in 45% of the patients. Alopecia was universal. No Grade 3 or higher non-hematological toxicities were observed. CONCLUSION Weekly 1 h paclitaxel administration is considered safe as a salvage therapy for recurrent gynecological tumors, making its use more convenient and easier in the outpatient setting. The current results support further evaluation.
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Affiliation(s)
- S Ota
- Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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149
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Shiroshita N, Musashi M, Sakurada K, Kimura K, Tsuda Y, Ota S, Iwasaki H, Miyazaki T, Kato T, Miyazaki H, Shimosaka A, Asaka M. Involvement of protein kinase C-epsilon in signal transduction of thrombopoietin in enhancement of interleukin-3-dependent proliferation of primitive hematopoietic progenitors. J Pharmacol Exp Ther 2001; 297:868-75. [PMID: 11356906] [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: 04/16/2023] Open
Abstract
We studied the effect of thrombopoietin (TPO) on interleukin-3 (IL-3)-dependent bone marrow cell colony formation of mice to clarify the role of protein kinase C (PKC) in the signal transduction of TPO for the proliferation of primitive hematopoietic progenitors. TPO alone hardly yielded colonies. However, TPO in combination with IL-3 increased colony numbers synergistically from 2- to 4-fold, compared with those supported by IL-3 alone. Serial observation of colony development showed that TPO may hasten the appearance of colonies by shortening the dormant period (G(0)) of primitive progenitors. Immunocytochemical studies on PKC isoforms in progenitor cells stimulated with TPO have revealed that the expression pattern of PKC-epsilon is changed, but not that of PKC-alpha, -beta, -gamma, -delta, or -zeta. Selective PKC inhibitors, such as calphostin C and GF 109203X, and PKC-epsilon-specific translocation inhibitor peptide abrogated the enhancing effect of TPO on IL-3-dependent colony formation and the changes in the intracellular expression pattern of PKC-epsilon. These data taken together suggest that TPO has a direct effect on primitive progenitors and enhances IL-3-dependent colony formation, at least partly through the activation of PKC-epsilon.
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Affiliation(s)
- N Shiroshita
- Third Department of Internal Medicine, Hokkaido University School of Medicine, Japan
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150
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Ota S, Tanaka J, Kobayashi S, Tsuda Y, Mori A, Noto S, Yamamoto Y, Hashino S, Musashi M, Imamura M, Asaka M. Evolution to acute myeloblastic leukemia from chronic neutrophilic leukemia with dysplastic features in granulocytic lineage. Acta Haematol 2001; 104:207-11. [PMID: 11279313 DOI: 10.1159/000046517] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We experienced the case of an 82-year-old man with chronic neutrophilic leukemia (CNL) with dysplastic features in the granulocytic lineage which subsequently progressed to acute myeloblastic leukemia (AML) with myelofibrosis. The patient had hepatosplenomegaly, but there was no evident cause of neutrophilic leukocytosis. The cytogenetic study showed that he had a normal karyotype. Concentrations of the serum granulocyte colony-stimulating factor (G-CSF) were not detectable. Two years after the diagnosis of CNL, blastic transformation to AML occurred with myelofibrosis and significant morphological abnormalities in neutrophils. The blasts were positive for myeloperoxidase, CD33, CD34, and HLA-DR, and the presence of dysplasia within the granulocytic lineage suggested that he had an abnormality at the level of the granulocyte-committed progenitors. Heterogeneous origins of CNL might lead to various clinicopathological features in each case.
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Affiliation(s)
- S Ota
- Third Department of Internal Medicine, Hokkaido University School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8648, Japan.
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