Prediction of Clinical Outcome in Patients with Idiopathic Thrombocytopenic Purpura by Evaluating Bone Marrow Clot CD20^+ B Lymphocytes and Morphological Changes of Megakaryocytes
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概要
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The pathology of B-lymphocytes in the bone marrow of patients with idiopathic thrombocytopenic purpura (ITP) has not been well described, even though B-lymphocytes may be involved in the etiology of ITP. We retrospectively reviewed the medical records of 73 ITP patients between January 1997 and June 2005 with platelet counts of < 50 x 109/L. Bone marrow clots were available for pathological review in 56 patients who were classified into 3 groups based on the results of the bone marrow clot examination : Group A (21 patients) had increased CD20+ lymphocytes (≧1% of nucleated cells) and megakaryocytes with morphologic changes ; Group B (21 patients) had morphologic changes but no increase in CD20+ lymphocytes ; and Group C (14 patients) had neither morphologic changes nor increased CD20+ lymphocytes. Multivariate analysis showed that, compared to Group A, Group B had a significant prognostic factor (p = 0.04 ; odds ratio, 6.65 ; 95% confidence interval, 1.09 to 40.54) for achieving complete response, while Group C had a significant prognostic factor for any treatment response (p = 0.04 ; odds ratio, 14.26 ; 95% confidence interval, 1.08 to 188.02). Thus, ITP patients can be classified with different clinical outcomes based on immunohistopathological examination of bone marrow clots. [J Clin Exp Hematopathol 48(1) : 11-15, 2008]
- 日本リンパ網内系学会の論文
- 2008-05-01
著者
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YAMASHITA Satoshi
Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology
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Sugiura Isamu
Department Of Hematology And Oncology Toyohashi Municipal Hospital
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Narimatsu Hiroto
Department Of Hematology And Oncology Ja Aichi Showa Hospital
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Sugimoto Takumi
Department Of Hematology And Oncology Toyohashi Municipal Hospital
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Sugimoto Takumi
Department Of Hematology And Oncology Nagoya University Graduate School Of Medicine
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Adachi Tatsuya
Department Of Hematology And Oncology Toyohashi Municipal Hospital
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Kurahashi Shingo
Department Of Hematology And Oncology Toyohashi Municipal Hospital
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Ito Masafumi
Department Of Electrical And Electronic Engineering Faculty Of Science And Technology Meijo Universi
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YAMAMOTO Fumiko
Department of Hematology, Toyohashi Municipal Hospital
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Yamashita Satoshi
Department Of Chemistry Graduate School Of Science Osaka University
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Yamashita Satoshi
Department Of Biochemistry And Engineering Graduate School Of Engineering Tohoku University
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Yamashita Satoshi
Department Of Hematology And Oncology Toyohashi Municipal Hospital
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Yamamoto Fumiko
Department Of Hematology And Oncology Toyohashi Municipal Hospital
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NARIMATSU Hiroto
Department of Hematology and Oncology, Toyohashi Municipal Hospital
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ITO MASAFUMI
Department of Pathology, Japanese Red Cross Nagoya First Hospital
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