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Ota H, Yamada H, Wada S, Tanimura K, Deguchi M, Uchida A, Nishikawa A. Toxoplasma gondii IgG avidity for the diagnosis of primary infection in pregnant women: Comparison between chemiluminescent microparticle immunoassay and enzyme-linked immunosorbent assay. J Infect Chemother 2024; 30:434-438. [PMID: 38000499 DOI: 10.1016/j.jiac.2023.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/01/2023] [Accepted: 11/19/2023] [Indexed: 11/26/2023]
Abstract
INTRODUCTION This study evaluated whether IgG avidity measured by chemiluminescent microparticle immunoassay (CMIA) compared with enzyme-linked immunosorbent assay (ELISA) was useful to detect primary T. gondii infection during pregnancy and to estimate the risk for congenital T. gondii infection. METHODS One hundred six women with positive tests for T. gondii IgG and T. gondii IgM, comprising 21 women (19.8%) with low (<30%), 6 (5.7%) with borderline (30%-35%), and 79 (74.5%) with high (>35%) IgG avidity measured by ELISA were selected. Their stored sera were used for T. gondii IgG avidity measurements by CMIA. RESULTS In CMIA, 72 (67.9%) women had low (<50%), 12 (11.3%) had borderline (50%-59.9%), and 22 (20.8%) had high (≥60%) IgG avidity. The ratio of low T. gondii IgG avidity index in CMIA was more than three-fold than that in ELISA. Eighteen (85.7%) of 21 women with ELISA low avidity also had CMIA low avidity, and 26 (96.3%) of 27 women with ELISA low or borderline avidity corresponded to CMIA low or borderline avidity, whereas 21 (26.6%) of 79 women with ELISA high avidity were diagnosed with CMIA low avidity. All three cases with congenital T. gondii infection showed coincidentally low IgG avidity in both methods. A positive correlation in IgG avidity indices was found between of ELISA and CMIA. CONCLUSIONS CMIA for T. gondii avidity measurements compared with ELISA was clinically useful to detect pregnant women at a high risk of developing congenital T. gondii infection.
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Affiliation(s)
- Hajime Ota
- Department of Obstetrics and Gynecology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Hideto Yamada
- Center for Recurrent Pregnancy Loss, Teine Keijinkai Hospital, Sapporo, Japan.
| | - Shinichiro Wada
- Department of Obstetrics and Gynecology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Kenji Tanimura
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masashi Deguchi
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akiko Uchida
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
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Masuko N, Tanimura K, Tanaka M, Uchida A, Takahashi R, Imafuku H, Deguchi M, Terai Y. HELLP Syndrome at 20 Gestational Weeks Managed Using the Mississippi Protocol: A Case Report. Kobe J Med Sci 2024; 70:E22-E25. [PMID: 38644297 DOI: 10.24546/0100488386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Hemolysis, elevated liver enzyme levels, and low platelet count (HELLP) syndrome is one of the most severe complications of hypertensive disorders of pregnancy. HELLP syndrome occurring before 22 gestational weeks (GWs) is extremely rare, and patients prevalently exhibit underlying maternal diseases or fetal abnormalities. Here, we report the case of a pregnant woman who had HELLP syndrome at 20 GWs without any obvious underlying maternal diseases or fetal abnormalities. A 38-year-old pregnant woman was referred to Kobe University Hospital from another hospital at 19 + 5/7 GWs for hypertension, proteinuria, generalized edema, and fetal growth restriction. She was diagnosed with partial HELLP syndrome according to the Mississippi classification at 20 + 2/7 GWs. The patient was managed following the Mississippi protocol, including intravenous dexamethasone, magnesium sulfate, and antihypertensive drugs. She received intensive blood pressure and laboratory data monitoring using an arterial line and additional treatments, including platelet transfusion, intravenous haptoglobin infusion, and human atrial natriuretic peptide. The pregnancy ended in an induced delivery at 20 + 3/7 GWs, and she was discharged without complications 10 days postnatal. We performed laboratory tests for diagnosing underlying diseases but identified no obvious underlying diseases. This report indicates that early and intensive treatment of patients with HELLP syndrome occurring before 22 GWs according to the Mississippi protocol may enable clinicians to complete pregnancy termination without maternal complications and provide useful information to clinical practitioners in perinatal medicine.
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Affiliation(s)
- Naohisa Masuko
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kenji Tanimura
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masayuki Tanaka
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akiko Uchida
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryosuke Takahashi
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hitomi Imafuku
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masashi Deguchi
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshito Terai
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
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Yanagita M, Muto S, Nishiyama H, Ando Y, Hirata S, Doi K, Fujiwara Y, Hanafusa N, Hatta T, Hoshino J, Ichioka S, Inoue T, Ishikura K, Kato T, Kitamura H, Kobayashi Y, Koizumi Y, Kondoh C, Matsubara T, Matsubara K, Matsumoto K, Okuda Y, Okumura Y, Sakaida E, Shibagaki Y, Shimodaira H, Takano N, Uchida A, Yakushijin K, Yamamoto T, Yamamoto K, Yasuda Y, Oya M, Okada H, Nangaku M, Kashihara N. Correction to: Clinical questions and good practice statements of clinical practice guidelines for management of kidney injury during anticancer drug therapy 2022. Clin Exp Nephrol 2024; 28:123-124. [PMID: 38070021 PMCID: PMC10808267 DOI: 10.1007/s10157-023-02436-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Affiliation(s)
- Motoko Yanagita
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, Japan.
| | - Satoru Muto
- Department of Urology, Graduate School of Medicine, Juntendo University, Bunkyo City, Tokyo, Japan
| | - Hiroyuki Nishiyama
- Department of Urology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuichi Ando
- Department of Clinical Oncology and Chemotherapy, Nagoya University Hospital, Nagoya, Japan
| | - Sumio Hirata
- Department of Academic Education, I and H Co., Ltd, Ashiya, Japan
| | - Kent Doi
- Department of Emergency and Critical Care Medicine, The University of Tokyo Hospital, Bunkyo City, Tokyo, Japan
| | - Yutaka Fujiwara
- Department of Thoracic Oncology, Aichi Cancer Center, Nagoya, Japan
| | - Norio Hanafusa
- Department of Blood Purification, Tokyo Women's Medical University, Shinjuku City, Tokyo, Japan
| | - Takahiro Hatta
- Department of Respiratory Medicine, Anjo Kosei Hospital, Anjo, Japan
| | - Junichi Hoshino
- Department of Nephrology, Tokyo Women's Medical University, Shinjuku City, Tokyo, Japan
| | - Satoko Ichioka
- Department of Pediatrics, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Takamitsu Inoue
- Department of Renal and Urologic Surgery, International University of Health and Welfare Narita Hospital, Chiba, Japan
| | - Kenji Ishikura
- Department of Pediatrics, Kitasato University School of Medicine, Minato, Kanagawa, Japan
| | - Taigo Kato
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiroshi Kitamura
- Department of Urology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Yusuke Kobayashi
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Minato, Tokyo, Japan
| | - Yuichi Koizumi
- Department of Pharmacy, Seichokai Fuchu Hospital, Izumi, Japan
| | - Chihiro Kondoh
- Departments of Medical Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Takeshi Matsubara
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazuo Matsubara
- Department of Pharmacy, Wakayama Medical University Hospital, Wakayama, Japan
| | | | - Yusuke Okuda
- Department of Pediatrics, Kitasato University School of Medicine, Minato, Kanagawa, Japan
| | - Yuta Okumura
- Department of Gastrointestinal and Medical Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Emiko Sakaida
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Yugo Shibagaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Saint Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - Hideki Shimodaira
- Division of Medical Oncology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Nao Takano
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akiko Uchida
- Department of Nursing, Seirei Sakura Citizen Hospital, Chiba, Japan
| | - Kimikazu Yakushijin
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Takehito Yamamoto
- Department of Pharmacy, The University of Tokyo Hospital, Bunkyo City, Tokyo, Japan
| | | | - Yoshinari Yasuda
- Department of Nephrology, Internal Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mototsugu Oya
- Department of Urology, Keio University School of Medicine, Minato, Tokyo, Japan
| | - Hirokazu Okada
- Department of Nephrology, Saitama Medical University, Saitama, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo, Bunkyo City, Tokyo, Japan
| | - Naoki Kashihara
- Department of Nephrology and Hypertension, Kawasaki Medical School, Kurashiki, Japan
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Yanagita M, Muto S, Nishiyama H, Ando Y, Hirata S, Doi K, Fujiwara Y, Hanafusa N, Hatta T, Hoshino J, Ichioka S, Inoue T, Ishikura K, Kato T, Kitamura H, Kobayashi Y, Koizumi Y, Kondoh C, Matsubara T, Matsubara K, Matsumoto K, Okuda Y, Okumura Y, Sakaida E, Shibagaki Y, Shimodaira H, Takano N, Uchida A, Yakushijin K, Yamamoto T, Yamamoto K, Yasuda Y, Oya M, Okada H, Nangaku M, Kashihara N. Clinical questions and good practice statements of clinical practice guidelines for management of kidney injury during anticancer drug therapy 2022. Clin Exp Nephrol 2024; 28:85-122. [PMID: 37878114 PMCID: PMC10808569 DOI: 10.1007/s10157-023-02415-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2023] [Indexed: 10/26/2023]
Affiliation(s)
- Motoko Yanagita
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, Japan.
| | - Satoru Muto
- Department of Urology, Graduate School of Medicine, Juntendo University, Bunkyo City, Tokyo, Japan
| | - Hiroyuki Nishiyama
- Department of Urology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuichi Ando
- Department of Clinical Oncology and Chemotherapy, Nagoya University Hospital, Nagoya, Japan
| | - Sumio Hirata
- Department of Academic Education, I and H Co., Ltd, Ashiya, Japan
| | - Kent Doi
- Department of Emergency and Critical Care Medicine, The University of Tokyo Hospital, Bunkyo City, Tokyo, Japan
| | - Yutaka Fujiwara
- Department of Thoracic Oncology, Aichi Cancer Center, Nagoya, Japan
| | - Norio Hanafusa
- Department of Blood Purification, Tokyo Women's Medical University, Shinjuku City, Tokyo, Japan
| | - Takahiro Hatta
- Department of Respiratory Medicine, Anjo Kosei Hospital, Anjo, Japan
| | - Junichi Hoshino
- Department of Nephrology, Tokyo Women's Medical University, Shinjuku City, Tokyo, Japan
| | - Satoko Ichioka
- Department of Pediatrics, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Takamitsu Inoue
- Department of Renal and Urologic Surgery, International University of Health and Welfare Narita Hospital, Chiba, Japan
| | - Kenji Ishikura
- Department of Pediatrics, Kitasato University School of Medicine, Minato, Kanagawa, Japan
| | - Taigo Kato
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiroshi Kitamura
- Department of Urology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Yusuke Kobayashi
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Minato, Tokyo, Japan
| | - Yuichi Koizumi
- Department of Pharmacy, Seichokai Fuchu Hospital, Izumi, Japan
| | - Chihiro Kondoh
- Departments of Medical Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Takeshi Matsubara
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazuo Matsubara
- Department of Pharmacy, Wakayama Medical University Hospital, Wakayama, Japan
| | | | - Yusuke Okuda
- Department of Pediatrics, Kitasato University School of Medicine, Minato, Kanagawa, Japan
| | - Yuta Okumura
- Department of Gastrointestinal and Medical Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Emiko Sakaida
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Yugo Shibagaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Saint Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - Hideki Shimodaira
- Division of Medical Oncology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Nao Takano
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akiko Uchida
- Department of Nursing, Seirei Sakura Citizen Hospital, Chiba, Japan
| | - Kimikazu Yakushijin
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Takehito Yamamoto
- Department of Pharmacy, The University of Tokyo Hospital, Bunkyo City, Tokyo, Japan
| | | | - Yoshinari Yasuda
- Department of Nephrology, Internal Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mototsugu Oya
- Department of Urology, Keio University School of Medicine, Minato, Tokyo, Japan
| | - Hirokazu Okada
- Department of Nephrology, Saitama Medical University, Saitama, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo, Bunkyo City, Tokyo, Japan
| | - Naoki Kashihara
- Department of Nephrology and Hypertension, Kawasaki Medical School, Kurashiki, Japan
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Yamanaka K, Washio K, Uchida A, Sasagawa Y, Nishimoto M, Yamasaki Y, Nagamata S, Terai Y. Rapid reduction of adenomyosis coexisting with leiomyoma volume during treatment with Relugolix. Gynecol Endocrinol 2023; 39:2237121. [PMID: 37537884 DOI: 10.1080/09513590.2023.2237121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/05/2023] Open
Abstract
OBJECTIVE This study elucidated the efficacy of Relugolix (REL) on the reduction of uterine volume and clinical symptoms for the treatment of adenomyosis. METHODS We conducted a retrospective cohort study of patients who received REL (40 mg for about 20 weeks) and who underwent a hysterectomy for adenomyosis or fibroids. We divided patients into two groups: adenomyosis coexisting with fibroids (Group A) and fibroids only (Group B); the groups were determined by a postoperative pathological examination. The primary end points were the percent reduction in uterine volume, adenomyotic lesion, and the largest fibroid volume at week 16. The secondary end points were the rate of amenorrhea, pelvic pain, and anemia at week 12. RESULTS A total of 56 patients participated in the current study: 20 in Group A and 36 in Group B. Regarding the largest fibroid volume, there was no significant difference between the two groups. Uterine volume after REL treatment was significantly decreased in Group A (43%), as compared to Group B (27%) (p = .00972), In Group A, adenomyotic lesion was decreased by 61%. Irrespective of the group, adenomyosis showed a significant reduction compared to uterine fibroids (p < .001). There was no statistically significant difference in the mitigation of symptoms (amenorrhea, pelvic pain, and anemia) between the two groups. CONCLUSIONS REL is more effective in reducing adenomyotic lesion than uterine fibroids and in relieving symptoms (amenorrhea, pelvic pain, and anemia). It can be expected that REL will also be used as a preoperative treatment for adenomyosis.
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Affiliation(s)
- Keitaro Yamanaka
- Department of Obstetrics and Gynecology, Kobe University, Kobe City, Japan
| | - Keiichi Washio
- Department of Obstetrics and Gynecology, Kobe University, Kobe City, Japan
| | - Akiko Uchida
- Department of Obstetrics and Gynecology, Kobe University, Kobe City, Japan
| | - Yuki Sasagawa
- Department of Obstetrics and Gynecology, Kobe University, Kobe City, Japan
| | - Masashi Nishimoto
- Department of Obstetrics and Gynecology, Kobe University, Kobe City, Japan
| | - Yui Yamasaki
- Department of Obstetrics and Gynecology, Kobe University, Kobe City, Japan
| | - Satoshi Nagamata
- Department of Obstetrics and Gynecology, Kobe University, Kobe City, Japan
| | - Yoshito Terai
- Department of Obstetrics and Gynecology, Kobe University, Kobe City, Japan
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Yotsuyanagi T, Tomita N, Saiki Y, Uchida A, Uemura Y, Suzuki Y, Hirakawa T, Kato M, Nakamura N, Arai A. Leukemic-phase mucosa-associated lymphoid tissue lymphoma. Int J Hematol 2023; 118:758-765. [PMID: 37700187 DOI: 10.1007/s12185-023-03654-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 08/10/2023] [Accepted: 08/22/2023] [Indexed: 09/14/2023]
Abstract
A 78-year-old man presenting with leukocytosis was admitted to our hospital. The patient was asymptomatic and showed no lymphadenopathy. Peripheral blood flow cytometry revealed a leukemic-phase B-cell lymphoma with medium-to-large abnormal cells with reticulum. Positron emission tomography/computed tomography revealed abnormal uptake in the right orbit, bone marrow, and spleen. We performed immunological staining and fluorescence in situ hybridization on tissues extracted from the right orbit and bone marrow, which led to the diagnosis of mucosa-associated lymphoid tissue (MALT) lymphoma. Polymerase chain reaction analysis of immunoglobulin heavy chain rearrangements in the right orbital mass and bone marrow suggested that they were identical clones. Based on these collective findings, the diagnosis of leukemic-phase MALT lymphoma was confirmed, with sites of involvement including the bone marrow, peripheral blood, right orbit, and spleen. This is a highly rare case of leukemic MALT lymphoma.
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Affiliation(s)
- Takayuki Yotsuyanagi
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Naoto Tomita
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan.
| | - Yusuke Saiki
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Akiko Uchida
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yu Uemura
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yoshinori Suzuki
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Tsuneaki Hirakawa
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Masayuki Kato
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Naoya Nakamura
- Department of Pathology, Tokai University, Isehara, Kanagawa, Japan
| | - Ayako Arai
- Hematology and Oncology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, Kanagawa, 216-8511, Japan
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Imafuku H, Tanimura K, Masuko N, Tomimoto M, Shi Y, Uchida A, Deguchi M, Fujioka K, Yamamoto A, Yoshino K, Hirota Y, Ogawa W, Terai Y. Advantages of sensor-augmented insulin pump therapy for pregnant women with type 1 diabetes mellitus. J Diabetes Investig 2023; 14:1383-1390. [PMID: 37706627 PMCID: PMC10690839 DOI: 10.1111/jdi.14075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/04/2023] [Accepted: 08/14/2023] [Indexed: 09/15/2023] Open
Abstract
AIMS/INTRODUCTION To evaluate the efficacy of sensor-augmented pump (SAP) for improving obstetric and neonatal outcomes among pregnant women with type 1 diabetes mellitus by comparing it with continuous subcutaneous insulin infusion plus self-monitoring of blood glucose (continuous subcutaneous insulin infusion [CSII]/SMBG). MATERIALS AND METHODS This retrospective cohort study included 40 cases of pregnancy complicated by type 1 diabetes mellitus treated with SAP (SAP group), and 29 cases of pregnancy complicated by type 1 diabetes mellitus treated with CSII/SMBG (CSII/SMBG group). The obstetric and neonatal outcomes were compared between the two groups. RESULTS The median of the glycoalbumin levels in the first (18.8% vs 20.9%; P < 0.05) and second (15.4% vs 18.0%; P < 0.05) trimesters, the hemoglobin A1c levels in the peripartum period (6.1% vs 6.5%; P < 0.05) and the standard deviation score of birthweights (0.36 vs 1.52; P < 0.05) were significantly lower in the SAP group than in the CSII/SMBG group. The incidence rate of large for gestational age newborns was significantly lower in the SAP group than in the CSII/SMBG group (27.5% vs 65.5%; P < 0.05). No significant differences in the incidence rates of hypertensive disorders of pregnancy, small for gestational age, respiratory distress syndrome, neonatal hypoglycemia, hypervolemia and hyperbilirubinemia were observed between the groups. CONCLUSION The present study showed that SAP therapy is more effective in preventing large for gestational age newborns in pregnant women with type 1 diabetes mellitus than CSII/SMBG.
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Affiliation(s)
- Hitomi Imafuku
- Department of Obstetrics and GynecologyKobe University Graduate School of MedicineKobeJapan
| | - Kenji Tanimura
- Department of Obstetrics and GynecologyKobe University Graduate School of MedicineKobeJapan
| | - Naohisa Masuko
- Department of Obstetrics and GynecologyKobe University Graduate School of MedicineKobeJapan
| | - Masako Tomimoto
- Department of Obstetrics and GynecologyKobe University Graduate School of MedicineKobeJapan
| | - Yutoku Shi
- Department of Obstetrics and GynecologyKobe University Graduate School of MedicineKobeJapan
| | - Akiko Uchida
- Department of Obstetrics and GynecologyKobe University Graduate School of MedicineKobeJapan
| | - Masashi Deguchi
- Department of Obstetrics and GynecologyKobe University Graduate School of MedicineKobeJapan
| | - Kazumichi Fujioka
- Department of PediatricsKobe University Graduate School of MedicineKobeJapan
| | - Akane Yamamoto
- Division of Diabetes and Endocrinology, Department of the Internal MedicineKobe University Graduate School of MedicineKobeJapan
| | - Kei Yoshino
- Division of Diabetes and Endocrinology, Department of the Internal MedicineKobe University Graduate School of MedicineKobeJapan
| | - Yushi Hirota
- Division of Diabetes and Endocrinology, Department of the Internal MedicineKobe University Graduate School of MedicineKobeJapan
| | - Wataru Ogawa
- Division of Diabetes and Endocrinology, Department of the Internal MedicineKobe University Graduate School of MedicineKobeJapan
| | - Yoshito Terai
- Department of Obstetrics and GynecologyKobe University Graduate School of MedicineKobeJapan
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Uchida A, Tanimura K, Sasagawa Y, Yamada H, Katayama Y, Matsumoto M. Two pregnant women with immune-mediated thrombotic thrombocytopenic purpura: A case report. J Obstet Gynaecol Res 2023; 49:2969-2974. [PMID: 37723661 DOI: 10.1111/jog.15793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 09/04/2023] [Indexed: 09/20/2023]
Abstract
Thrombotic thrombocytopenic purpura (TTP) during pregnancy is life-threatening. We encountered two pregnant women with immune-mediated TTP (iTTP). A 40-year-old primigravida woman was referred at 19 gestational weeks (GWs) owing to iTTP. She received plasma exchange (PE) and steroid therapies and delivered a live infant at 27 GWs by cesarean delivery. A 29-year-old primigravida woman was referred owing to intrauterine fetal death and thrombocytopenia at 20 GWs. She was diagnosed with iTTP and received PE therapy. She required additional PE and steroid therapies owing to relapse. Before her second pregnancy, she received prednisolone and hydroxychloroquine according to the therapy for systemic lupus erythematosus (SLE). She had induced labor at 37 GWs owing to decrease plasma level of a disintegrin-like and metalloproteinase with thrombospondin type 1 motif 13 (ADAMTS13) activity. Close monitoring of plasma ADAMTS13 activity level and treatments for underlying SLE may prevent iTTP relapse and lead to a good prognosis.
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Affiliation(s)
- Akiko Uchida
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kenji Tanimura
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuki Sasagawa
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hirotaka Yamada
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshio Katayama
- Division of Hematology, Department of Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masanori Matsumoto
- Department of Blood Transfusion Medicine, Nara Medical University, Kashihara, Japan
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Washio K, Komatsu M, Tomimoto M, Uchida A, Sasagawa Y, Nishimoto M, Nagamata S, Yamasaki Y, Tanimura K, Terai Y. Uterine rupture in intramural ectopic pregnancy: A case report. Asian J Endosc Surg 2023. [PMID: 36608704 DOI: 10.1111/ases.13156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/10/2022] [Accepted: 12/14/2022] [Indexed: 01/08/2023]
Abstract
Intramural pregnancy is a rare form of ectopic pregnancy. It is defined by a gestation within the uterine wall, completely surrounded by myometrium and separated from the uterine cavity and the fallopian tube. We report a rare case of intramural ectopic pregnancy. If a patient has a history of intrauterine surgery or myomectomy, the possibility of intramural pregnancy, although rare, should not be ruled out.
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Affiliation(s)
- Keiichi Washio
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masato Komatsu
- Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masako Tomimoto
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akiko Uchida
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yuki Sasagawa
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masashi Nishimoto
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Satoshi Nagamata
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yui Yamasaki
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kenji Tanimura
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshito Terai
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
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10
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Okada K, Tsuchiya K, Sakai K, Kuragano T, Uchida A, Tsuruya K, Tomo T, Hamada C, Fukagawa M, Kawaguchi Y, Watanabe Y, Aita K, Ogawa Y, Uchino J, Okada H, Koda Y, Komatsu Y, Sato H, Hattori M, Baba T, Matsumura M, Miura H, Minakuchi J, Nakamoto H, Okada K, Tsuchiya K, Sakai K, Kuragano T, Uchida A, Tsuruya K, Tomo T, Hamada C, Fukagawa M, Kawaguchi Y, Watanabe Y, Aita K, Ogawa Y, Uchino J, Okada H, Koda Y, Komatsu Y, Sato H, Hattori M, Baba T, Matsumura M, Miura H, Minakuchi J, Nakamoto H. Shared decision making for the initiation and continuation of dialysis: a proposal from the Japanese Society for Dialysis Therapy. Ren Replace Ther 2021. [DOI: 10.1186/s41100-021-00365-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
In Japan, forgoing life-sustaining treatment to respect the will of patients at the terminal stage is not stipulated by law. According to the Guidelines for the Decision-Making Process in Terminal-Stage Healthcare published by the Ministry of Health, Labor and Welfare in 2007, the Japanese Society for Dialysis Therapy (JSDT) developed a proposal that was limited to patients at the terminal stage and did not explicitly cover patients with dementia. This proposal for the shared decision-making process regarding the initiation and continuation of maintenance hemodialysis was published in 2014.
Methods and results
In response to changes in social conditions, the JSDT revised the proposal in 2020 to provide guidance for the process by which the healthcare team can provide the best healthcare management and care with respect to the patient's will through advance care planning and shared decision making. For all patients with end-stage kidney disease, including those at the nonterminal stage and those with dementia, the decision-making process includes conservative kidney management.
Conclusions
The proposal is based on consensus rather than evidence-based clinical practice guidelines. The healthcare team is therefore not guaranteed to be legally exempt if the patient dies after the policies in the proposal are implemented and must respond appropriately at the discretion of each institution.
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11
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Imafuku H, Tanimura K, Shi Y, Uchida A, Deguchi M, Terai Y. Clinical factors associated with a placenta accreta spectrum. Placenta 2021; 112:180-184. [PMID: 34375912 DOI: 10.1016/j.placenta.2021.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/16/2021] [Accepted: 08/02/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Placenta accreta spectrum (PAS) is a life-threating obstetric complication, and prenatal prediction of PAS can decrease maternal morbidity and mortality. The aim of this prospective cohort study was to determine the clinical factors associated with PAS. METHODS Pregnant women who delivered at a university hospital were enrolled. Clinical data were collected from medical records, and logistic regression analyses were performed to determine which clinical factors were associated with PAS. RESULTS Eighty-seven (2.1%) of the 4146 pregnant women experienced PAS. Multivariable analyses revealed that a prior history of cesarean section (CS) (OR 3.3; 95% CI 1.9-5.7; p < 0.01), dilation and curettage (D&C) (OR 2.8; 95% CI 1.7-4.6; p < 0.01), hysteroscopic surgery (OR 5.7; 95% CI 2.3-14.4; p < 0.01), uterine artery embolization (UAE) (OR 44.1; 95% CI 13.8-141.0; p < 0.01), current pregnancy via assisted reproductive technology (ART) (OR 4.1; 95% CI 2.4-7.1; p < 0.01), and the presence of placenta previa in the current pregnancy (OR 13.1; 95% CI 7.9-21.8; p < 0.01) were independently associated with the occurrence of PAS. CONCLUSION Pregnant women who have a prior history of CS, D&C, hysteroscopic surgery, UAE, current pregnancy via ART, and the presence of placenta previa in the current pregnancy are high risk for PAS.
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Affiliation(s)
- Hitomi Imafuku
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kenji Tanimura
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - Yutoku Shi
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akiko Uchida
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masashi Deguchi
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshito Terai
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
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12
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Komatsu N, Bando N, Uchida A, Ooi HK. Discovery of cockroach specimens of the genus Squamoptera (Ectobiidae: Pseudophyllodromiinae) from Okinawa, Japan, showing wing polymorphism. Trop Biomed 2021; 38:222-225. [PMID: 34362864 DOI: 10.47665/tb.38.3.061] [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] [Indexed: 11/21/2022]
Abstract
Cockroach specimens of the genus, Squamoptera were collected from the Iriomote island of Okinawa prefecture, Japan. The morphological features of the specimens were characterized as having a white band on the dorsal surface of its thorax, its tegmen reduced into a tiny scale-like structure and the hindwing was absent. Ocelli was also absent and the small compound eyes not extending to apex of the head nor to the frontal face but extend further lower than the base of the antennae. When the specimens were reared in the laboratory, besides the short wing form, the long wing form began to appear in the rearing colony. In our reproductive biological study, we observed that hatching of the ootheca from the short wing female takes about 30 days, with an average of 6.6 nymphs being hatched from one ootheca. The male to female ratio of the offspring was 36:30. However, the frequency appearance of the offspring from the ootheca of the short wing female was 98.5% short wing and 1.5% long wing form. Our specimens occasionally show body polymorphism in the form of individuals having long wings instead of the usual short one. The long wing form does not show the white band on the dorsal surface of its thorax.
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Affiliation(s)
- N Komatsu
- Civil International Corporation, 1-10-14 Kitaueno, Taito, Tokyo 110-0014 Japan
| | - N Bando
- Super Buddies, 422 Nosoko, Ishigaki, Okinawa 907-0333 Japan
| | - A Uchida
- aboratory of Parasitology, Faculty of Animal Health Technology, Yamazaki University of Animal Health Technology, 4-7-2 Minami-osawa, Hachioji, Tokyo 192-0364 Japan
| | - H K Ooi
- aboratory of Parasitology, Faculty of Animal Health Technology, Yamazaki University of Animal Health Technology, 4-7-2 Minami-osawa, Hachioji, Tokyo 192-0364 Japan.,Laboratory of Parasitology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara, Kanagawa 252-5201 Japan
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13
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Uchida A, Tanimura K, Morizane M, Fujioka K, Morioka I, Oohashi M, Minematsu T, Yamada H. Clinical Factors Associated With Congenital Cytomegalovirus Infection: A Cohort Study of Pregnant Women and Newborns. Clin Infect Dis 2021; 71:2833-2839. [PMID: 31789345 DOI: 10.1093/cid/ciz1156] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 11/28/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The aim of this prospective cohort study was to determine clinical factors associated with the occurrence of congenital cytomegalovirus infection (cCMV) in pregnant women. METHODS Between March 2009 and November 2017, newborns born at a primary maternity hospital received polymerase chain reaction (PCR) analyses for CMV DNA in their urine with informed consent of the mothers at a low risk. Clinical data, including age, gravidity, parity, body mass index, occupation, maternal fever/flulike symptoms, pregnancy complications, gestational weeks at delivery, birth weight, and automated auditory brainstem response, were collected. Logistic regression analyses were performed to determine clinical factors associated with cCMV. RESULTS cCMV was diagnosed by positive PCR results of neonatal urine in 9 of 4125 pregnancies. Univariate and multivariable analyses revealed that the presence of fever/flulike symptoms (odds ratio [OR], 17.9; 95% confidence interval [CI], 3.7-86.7; P < .001) and threatened miscarriage/premature labor in the second trimester (OR, 6.0; 95% CI, 1.6-22.8; P < .01) were independent clinical factors associated with cCMV. Maternal fever/flulike symptoms or threatened miscarriage/premature labor in the second trimester had 100% sensitivity, 53.2% specificity, and a maximum Youden index of .85. CONCLUSIONS This cohort study for the first time demonstrated that these clinical factors of pregnant women and newborns were associated with the occurrence of cCMV. This is useful information for targeted screening to assess risks of cCMV in low-risk mothers, irrespective of primary or nonprimary CMV infection.
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Affiliation(s)
- Akiko Uchida
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kenji Tanimura
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Mayumi Morizane
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kazumichi Fujioka
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ichiro Morioka
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
| | | | - Toshio Minematsu
- Research Center for Disease Control, Aisenkai Nichinan Hospital, Miyazaki, Japan
| | - Hideto Yamada
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
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14
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Matsunawa M, Inoue Y, Yagihashi K, Aida Y, Uchida A, Uemura Y, Saiki Y, Takimoto M, Sano F, Miura I, Arai A. The clinicopathological analysis of organising pneumonia in myelodysplastic syndrome: high frequency in der(1;7)(q10; p10). Br J Haematol 2021; 194:214-217. [PMID: 33855707 DOI: 10.1111/bjh.17473] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Manabu Matsunawa
- Department of Internal Medicine, Division of Hematology, Yokohama City Seibu Hospital, St. Marianna University School of Medicine, Yokohama, Japan
| | - Yasuyuki Inoue
- Department of Internal Medicine, Division of Hematology, Yokohama City Seibu Hospital, St. Marianna University School of Medicine, Yokohama, Japan
| | - Kunihiro Yagihashi
- Department of Radiology, Kawasaki Municipal Tama Hospital, Kawasaki, Japan
| | - Yoshio Aida
- Department of Pathology, Yokohama City Seibu Hospital, St. Marianna University School of Medicine, Yokohama, Japan
| | - Akiko Uchida
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yu Uemura
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yusuke Saiki
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Madoka Takimoto
- Department of Internal Medicine, Division of Hematology, Yokohama City Seibu Hospital, St. Marianna University School of Medicine, Yokohama, Japan
| | - Fumiaki Sano
- Department of Internal Medicine, Division of Hematology, Yokohama City Seibu Hospital, St. Marianna University School of Medicine, Yokohama, Japan
| | - Ikuo Miura
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Ayako Arai
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan.,Department of Hematological Therapeutics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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15
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Saiki Y, Sakai H, Uchida A, Uemura Y, Matsunawa M, Isobe Y, Kato M, Tomita N, Miura I, Arai A. [Leukemic cell kinetics of APL with a novel complex variant t (12;17;15)(p13;q21;q22)]. Rinsho Ketsueki 2020; 61:103-109. [PMID: 32147608 DOI: 10.11406/rinketsu.61.103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 69-year-old woman with leukocytopenia and thrombocytopenia was referred to our hospital. Her bone marrow comprised 70.5% abnormal promyelocytes that were positive for myeloperoxidase/CD33/CD117 and CD13 (dim) and negative for CD2/CD34/CD56 and HLA-DR. Chromosome analysis of the bone marrow showed t (12;17;15) (p13;q21;q22), and fluorescence in situ hybridization revealed the PML-RARA fusion signal only on the derivative chromosome 15. The patient was diagnosed with acute promyelocytic leukemia (APL) with PML-RARA and was treated using all-trans retinoic acid (ATRA). In peripheral blood (PB), PML-RARA-positive polymorphonuclear cells (PMNs) appeared on the second week and became negative on the sixth week after treatment, whereas PML-RARA-negative PMNs started to increase in number on the sixth week. Molecular remission was confirmed on the 10th week. Quantitative evaluation of the differentiated leukemic cells of APL and recovered cells from normal hematopoiesis in PB can provide useful information for a safer induction therapy. No significant difference was noted in the kinetics of the leukemic cells under ATRA treatment as well as in the clinical features between our patient without RARA-PML and those with t (15;17), which is a cytogenetic evidence for the critical role of PML-RARA in the pathogenesis of APL.
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Affiliation(s)
- Yusuke Saiki
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Hirotaka Sakai
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Akiko Uchida
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yu Uemura
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Manabu Matsunawa
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yasushi Isobe
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Masayuki Kato
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Naoto Tomita
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Ikuo Miura
- Center for Genetic and Chromosomal Analysis, SRL, Inc
| | - Ayako Arai
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
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Yamagata K, Hoshino J, Sugiyama H, Hanafusa N, Shibagaki Y, Komatsu Y, Konta T, Fujii N, Kanda E, Sofue T, Ishizuka K, Kitagawa M, Kono K, Hinamoto N, Miyai T, Koike K, Toda S, Hasegawa J, Yamanouchi M, Yoshimura R, Ishii R, Goto S, Kawarazaki H, Takase K, Taki F, Matsumura M, Raita Y, Sakurai S, Shimizu T, Yamanoto S, Kawaguchi T, Oguchi H, Tsujita M, Yazawa M, Uchida A, Ando Y, Kaneko S, Matsunaga A, Harada T, Ito O, Kohzuki M. Clinical practice guideline for renal rehabilitation: systematic reviews and recommendations of exercise therapies in patients with kidney diseases. Ren Replace Ther 2019. [DOI: 10.1186/s41100-019-0209-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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17
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Yamada H, Tanimura K, Deguchi M, Tairaku S, Morizane M, Uchida A, Ebina Y, Nishikawa A. A cohort study of maternal screening for congenital Toxoplasma gondii infection: 12 years' experience. J Infect Chemother 2019; 25:427-430. [PMID: 30824301 DOI: 10.1016/j.jiac.2019.01.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/11/2019] [Accepted: 01/21/2019] [Indexed: 10/27/2022]
Abstract
Primary infection with Toxoplasma gondii (T. gondii) during pregnancy may cause congenital infection of the infant. This study evaluated whether screening using IgG avidity and multiplex-nested polymerase chain reaction (PCR) methods was effective for detecting a high-risk pregnancy for congenital T. gondii infection. In a prospective cohort study serum T. gondii IgG avidity was measured in 469 pregnant women who had a positive test for T. gondii antibody plus a positive or equivocal test for IgM. Multiplex-nested PCR for T. gondii DNA on amniotic fluid, maternal blood, and neonatal blood was performed with informed consent. Low (<30%), borderline (30-35%), and high (>35%) IgG avidity indices were found in 104 (22.2%), 30 (6.4%), and 305 (71.4%), respectively. A total of 12 cases had a positive PCR test for amniotic fluids of the prenatal amniocentesis or at birth, or neonatal blood. Seven of the 12 cases were diagnosed as having congenital T. gondii infection, and they had low IgG avidity indices. Congenital T. gondii infection screening using of IgG avidity and multiplex-nested PCR methods for pregnant women with a positive test for T. gondii antibody plus a positive or equivocal test for T. gondii IgM was useful for detecting a high-risk pregnancy and diagnosing congenital T. gondii infection.
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Affiliation(s)
- Hideto Yamada
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - Kenji Tanimura
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masashi Deguchi
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinya Tairaku
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Mayumi Morizane
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akiko Uchida
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yasuhiko Ebina
- Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akira Nishikawa
- NTT East Sapporo Medical Center, Japan; Nishikawa Women's Health Clinic, Sapporo, Japan
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18
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Kuroiwa Y, Uchida A, Yamashita A, Miyati T, Maekawa K, Gi T, Noguchi T, Yasuda S, Imamura T, Asada Y. Coronary high-signal-intensity plaques on T 1-weighted magnetic resonance imaging reflect intraplaque hemorrhage. Cardiovasc Pathol 2019; 40:24-31. [PMID: 30797186 DOI: 10.1016/j.carpath.2019.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/03/2018] [Accepted: 01/07/2019] [Indexed: 01/01/2023] Open
Abstract
Coronary high-signal-intensity plaques (HIPs) detected by T1-weighted magnetic resonance imaging are associated with future cardiovascular events. This study aimed to identify pathological findings reflecting HIPs in coronary arteries obtained from autopsy cases. Formalin-fixed hearts were imaged with noncontrast T1-weighted imaging with a 1.5-T magnetic resonance system. We defined HIPs or non-HIPs as a coronary plaque to myocardial signal intensity ratio (PMR) of ≥1.4 or <1.4, respectively. We found HIPs in 4 of 37 (10.8%) hearts and analyzed 7 hearts in detail. The corresponding sections to HIPs (n=11) or non-HIPs (n=25) were histologically and immunohistochemically analyzed. We calculated the T1 relaxation time of human venous blood in vitro. Plaque and necrotic core areas, and the frequency of intraplaque hemorrhage in HIPs were significantly larger/higher than those in non-HIPs. HIPs were immunopositive for CD68 (11/11), glycophorin A (10/11), and fibrin (11/11). Glycophorin-A-, matrix metalloprotease 9 (MMP9)-, and tissue factor-immunopositive areas were larger in HIPs than in non-HIPs. The PMR was positively correlated with glycophorin-A-, fibrin-, MMP9-, and tissue factor-immunopositive areas. Blood coagulation shortened the T1 relaxation time of the blood and plasma, and the T1 relaxation times in coagulated whole blood and erythrocyte-rich blood were significantly shorter than those in plasma. Coronary HIPs may reflect intraplaque hemorrhage and may be a novel marker for plaque instability and thrombogenic potential.
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Affiliation(s)
- Yasuyoshi Kuroiwa
- Department of Radiological Technology, Koga General Hospital, 1749-4 Sudaki, Ikeuchi, Miyazaki 880-0041, Japan; Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
| | - Akiko Uchida
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
| | - Atsushi Yamashita
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan.
| | - Tosiaki Miyati
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan
| | - Kazunari Maekawa
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
| | - Toshihiro Gi
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
| | - Teruo Noguchi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka 565-8565, Japan
| | - Satoshi Yasuda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka 565-8565, Japan
| | - Takuroh Imamura
- Department of Internal Medicine, Koga General Hospital, 1749-4 Sudaki, Ikeuchi, Miyazaki 880-0041, Japan
| | - Yujiro Asada
- Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
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19
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Uchida A, Isobe Y, Asano J, Uemura Y, Hoshikawa M, Takagi M, Miura I. Targeting BCL2 with venetoclax is a promising therapeutic strategy for "double-proteinexpression" lymphoma with MYC and BCL2 rearrangements. Haematologica 2018; 104:1417-1421. [PMID: 30523053 PMCID: PMC6601100 DOI: 10.3324/haematol.2018.204958] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 11/23/2018] [Indexed: 12/12/2022] Open
Abstract
The so-called “double-hit” and “double-protein-expression” lymphoma with MYC and BCL2 rearrangements is a rare, mature B-cell neoplasm characterized by a germinal center B-cell phenotype, abundant protein expression of MYC and BCL2, rapid disease progression, and a poor prognosis. In this study, we showed the potential benefit of the BCL2 inhibitor venetoclax in the treatment of this disease. Immunohistochemical studies of the lymphoma tissues confirmed that overexpression of MYC and BCL2 was observed more frequently in this subtype than in other germinal center B-cell-like diffuse large B-cell lymphomas. In contrast, another pro-survival protein MCL1 was less expressed in this subtype, even when compared with its expression in the non-“double-hit” and “double-protein-expression” type. Furthermore, in vitro studies using two “double-hit” and “double-protein-expression” lymphoma-derived cell lines, Karpas231 and OCI-Ly8, clearly showed that a low concentration of venetoclax, but not the MCL1 inhibitor S63845, was sufficient to induce apoptosis in the two lines, compared with in other germinal center B-cell-derived cell lines, BJAB and SU-DHL10. These results indicate that the survival of this type of lymphoma depends predominantly on BCL2 rather than on MCL1. Unexpectedly, we found that venetoclax not only disrupts the interaction between BCL2 and the pro-apoptotic protein BIM, but also leads to dephosphorylation of BCL2 and further downregulates MCL1 protein expression, probably through modulation of the protein phosphatase 2A B56α activity in Karpas231 and OCI-Ly8. Indeed, a low concentration of venetoclax induced substantial apoptosis in the primary lymphoma cells, regardless of high protein expression of MCL1 associated with venetoclax resistance. Venetoclax clearly triggers the signal transduction related to BCL2 and MCL1 in “double-hit” and “double-protein-expression” lymphoma cells.
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Affiliation(s)
- Akiko Uchida
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa
| | - Yasushi Isobe
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa
| | - Junko Asano
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa
| | - Yu Uemura
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa
| | - Masahiro Hoshikawa
- Department of Pathology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, Japan
| | - Masayuki Takagi
- Department of Pathology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, Japan
| | - Ikuo Miura
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa
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Shi Y, Tanimura K, Sasagawa Y, Uchida A, Uenaka M, Shirakawa T, Imafuku H, Shimaoka M, Morizane M, Yamada H. The involvement of vaginal microbiome in threatened premature delivery. J Reprod Immunol 2018. [DOI: 10.1016/j.jri.2018.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Sato K, Sakai H, Saiki Y, Uchida A, Uemura Y, Yokoi S, Tsuruoka Y, Nishio Y, Matsunawa M, Suzuki Y, Isobe Y, Kato M, Tomita N, Inoue Y, Miura I. Correction to: Cell dynamics during differentiation therapy with all-trans retinoic acid in acute promyelocytic leukemia. Int J Hematol 2018; 108:460. [PMID: 30101404 DOI: 10.1007/s12185-018-2515-2] [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] [Indexed: 11/30/2022]
Abstract
In the original publication of the article, Table 2 was published incorrectly. The column names were swapped under the column heading "Prom (%)". The correct column names are PB and BM.
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Affiliation(s)
- Kazuyuki Sato
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Hirotaka Sakai
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan.
| | - Yusuke Saiki
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Akiko Uchida
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yu Uemura
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Satoshi Yokoi
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yuka Tsuruoka
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yuji Nishio
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Manabu Matsunawa
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yoshinori Suzuki
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yasushi Isobe
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Masayuki Kato
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Naoto Tomita
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Yasuyuki Inoue
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
| | - Ikuo Miura
- Division of Hematology and Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan
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Yamashita A, Kuroiwa Y, Uchida A, Maekawa K, Gi T, Imamura T, Asada Y. Abstract 236: Magnetic Resonance T1 High Signal Intensity in Coronary Atherosclerotic Plaques Reflects Intraplaque Hemorrhage-derived Erythrocyte Content. Arterioscler Thromb Vasc Biol 2018. [DOI: 10.1161/atvb.38.suppl_1.236] [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] [Indexed: 11/16/2022]
Abstract
Objective:
Acute myocardial infarction is triggered by plaque disruption and thrombus formation, therefore, it is important to detect high thrombotic risk plaque non-invasively. Coronary high signal intensity plaque (HIP) on T1 weighted magnetic resonance imaging (T1WI) was associated with future coronary events. The aim of this study is to identify pathological findings reflecting HIPs using hearts obtained from autopsy cases and blood samples.
Approach and Results:
Formalin-fixed hearts (n=7) were imaged with non-contrast T1WI with a 1.5 T magnetic resonance system. We defined HIPs (n=11) or non-HIPs (n=25) as a coronary plaque to myocardial signal intensity ratio (PMR) of √ 1.4 or √ 1.4, respectively. The corresponding histological sections were histologically and immunohistochemically analyzed. Plaque and necrotic core areas or frequency of intraplaque hemorrhage in HIPs were significantly larger or higher than those in non-HIPs. The high intensity portion in large coronary plaque was immunopositive for CD68, CD163, glycophorin A, and fibrin. Glycophorin A-, matrix metalloprotease (MMP) 9-, tissue factor-immunopositive areas were larger in HIPs than those in non-HIPs. Glycophorin A-, fibrin-, MMP9-, and tissue factor-immunopositive areas were positively correlated with PMR. We calculated T1 relaxation time of venous blood, plasma, and erythrocyte-rich blood in vitro. Blood coagulation shortened T1 relaxation time of the blood and plasma, and T1 relaxation times in coagulated whole blood and erythrocyte-rich blood were significantly shorter than those in plasma.
Conclusions:
Majority of coronary HIPs may reflect intraplaque hemorrhage-derived erythrocyte content, and may be a novel marker for plaque instability and thrombogenic potential.
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Uemura Y, Sakai H, Saiki Y, Uchida A, Sato K, Tsuruoka Y, Yokoi S, Nishio Y, Matsunawa M, Suzuki Y, Isobe Y, Kato M, Tomita N, Inoue Y, Miura I. [MALT lymphoma with t (X;14) (p11.2;q32) developing during the course of cutaneous leukocytoclastic angitis]. Rinsho Ketsueki 2018; 59:269-274. [PMID: 29618683 DOI: 10.11406/rinketsu.59.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 73-year-old man with left parotid gland swelling over 2 months was referred to our hospital in March 201X. Purpura on the lower legs had been recurrent for >20 years. Biopsy of the parotid gland demonstrated diffuse infiltration of abnormal lymphocytes that were negative for CD10 and positive for CD19, CD20, and κ-chain. The Ki-67 positivity was <10%; lymphoepithelial lesions were observed. The patient was diagnosed with extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma). Chromosome analysis revealed t (X;14) (p11.2;q32), and fluorescence in situ hybridization (FISH) of metaphase spreads showed three signals of the immunoglobulin heavy chain (IGH) gene on the derivative chromosomes X and 14, besides the normal chromosome 14. CT findings of parotid glands were suggestive of Sjogren syndrome, and biopsy of the purpura on the leg demonstrated leukocytoclastic vasculitis. In the literature, only seven patients with lymphoma and t (X;14) translocation have been reported. Of these, five patients had MALT lymphoma, one had nodal marginal zone lymphoma, and one had diffuse large B-cell lymphoma. In all patients, lymphoma evolved from previous autoimmune diseases. It is suggested that MALT lymphoma with the t (X;14) translocation forms a new entity of lymphoma.
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Affiliation(s)
- Yu Uemura
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Hirotaka Sakai
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yusuke Saiki
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Akiko Uchida
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Kazuyuki Sato
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yuka Tsuruoka
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Satoshi Yokoi
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yuji Nishio
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Manabu Matsunawa
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yoshinori Suzuki
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yasushi Isobe
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Masayuki Kato
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Naoto Tomita
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yasuyuki Inoue
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Ikuo Miura
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
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Uemura Y, Isobe Y, Uchida A, Asano J, Nishio Y, Sakai H, Hoshikawa M, Takagi M, Nakamura N, Miura I. Expression of activating natural killer-cell receptors is a hallmark of the innate-like T-cell neoplasm in peripheral T-cell lymphomas. Cancer Sci 2018; 109:1254-1262. [PMID: 29363227 PMCID: PMC5891177 DOI: 10.1111/cas.13512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/20/2017] [Accepted: 01/16/2018] [Indexed: 12/17/2022] Open
Abstract
Peripheral T‐ or natural killer (NK)‐cell lymphomas are rare and difficult‐to‐recognize diseases. It remains arduous to distinguish between NK cell‐ and cytotoxic T‐lymphocyte‐derived lymphomas through routine histological evaluation. To clarify the cells of origin, we focused on NK‐cell receptors and examined the expression using immunohistochemistry in 22 cases with T‐ and NK‐cell neoplasms comprising angioimmunoblastic T‐cell lymphoma, anaplastic lymphoma kinase (ALK)‐positive and ‐negative anaplastic large‐cell lymphomas, extranodal NK/T‐cell lymphoma, nasal type, monomorphic epitheliotropic intestinal T‐cell lymphoma, aggressive NK‐cell leukemia, and other peripheral T‐cell lymphomas. Inhibitory receptor leukocyte immunoglobulin‐like receptor subfamily B member 1 (LILRB1) was detected in 14 (64%) cases, whereas activating receptors DNAM1, NKp46, and NKG2D were expressed in 7 (32%), 9 (41%), and 5 (23%) cases, respectively. Although LILRB1 was detected regardless of the disease entity, the activating NK‐cell receptors were expressed predominantly in TIA‐1‐positive neoplasms (DNAM1, 49%; NKp46, 69%; and NKG2D, 38%). In addition, NKp46 and NKG2D were detected only in NK‐cell neoplasms and cytotoxic T‐lymphocyte‐derived lymphomas including monomorphic epitheliotropic intestinal T‐cell lymphoma. One Epstein‐Barr virus‐harboring cytotoxic T‐lymphocyte‐derived lymphoma mimicking extranodal NK/T‐cell lymphoma, nasal type lacked these NK‐cell receptors, indicating different cell origin from NK and innate‐like T cells. Furthermore, NKG2D expression showed a negative impact on survival among the 22 examined cases, which mainly received the standard chemotherapy regimen (log‐rank test, P = .024). We propose that the presence of activating NK‐cell receptors may provide new insights into understanding peripheral T‐cell lymphomas and characterizing them as innate‐like T‐cell neoplasm.
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Affiliation(s)
- Yu Uemura
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yasushi Isobe
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Akiko Uchida
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Junko Asano
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yuji Nishio
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Hirotaka Sakai
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masahiro Hoshikawa
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masayuki Takagi
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Naoya Nakamura
- Department of Pathology, Tokai University School of Medicine, Isehara, Japan
| | - Ikuo Miura
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
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Uchida A, Isobe Y, Uemura Y, Nishio Y, Sakai H, Kato M, Otsubo K, Hoshikawa M, Takagi M, Miura I. De novo acute lymphoblastic leukemia-like disease of high grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements: a case report and literature review. BMC Clin Pathol 2017; 17:21. [PMID: 29151814 PMCID: PMC5679186 DOI: 10.1186/s12907-017-0060-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 10/30/2017] [Indexed: 12/15/2022] Open
Abstract
Background B-cell lymphomas harboring the 8q24/MYC plus 18q21/BCL2 translocations are now referred to as high grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements (HGBL-MBR). Although HGBL-MBR is frequently found in cases with diffuse large B-cell lymphoma or Burkitt lymphoma-like B-cell lymphoma, acute lymphoblastic leukemia (ALL)-like disease of HGBL-MBR (AL-HGBL-MBR) has been reported incidentally. Case presentation A 69-year-old Japanese woman developed remittent fever and increasing systemic bone pain. The bone marrow examination revealed that more than 90% of nuclear cells were blastoid cells, which were positive for CD10, CD19, CD20, and surface IgMκ and negative for terminal deoxynucleotidyl transferase (TdT). Cytogenetic studies confirmed that the patient had de novo AL-HGBL-MBR with the extra copies of MYC and loss of chromosome 17p. She showed resistance to chemoimmunotherapy and died seven months after the diagnosis. The literature review identified further 47 de novo AL-HGBL-MBR cases within the last 32 years. The median age was 61 years (range, 27 − 86); the male/female ratio was 2.0. Thirty-eight cases (79%) presented a clinical picture of ALL at diagnosis; 14 (36%) of 39 available cases showed central nervous system involvement. Loss of 17p and translocations at 2p12–13, 3q27, 9p13 were frequently observed as additional cytogenetic abnormalities. Although the median survival of 46 available cases was only five months (range, 0.1–18), rituximab use significantly improved the survival of AL-HGBL-MBR (log-rank test, P = 0.0294). Conclusion Our patient and most reported de novo AL-HGBL-MBR cases showed resistance to conventional chemoimmunotherapy and disastrous consequences. AL-HGBL-MBL is a rare, but should be considered a distinct clinical condition in HGBL-MBR. Other therapeutic strategies, such as using inhibitors of MYC and BCL2, are needed to overcome the chemoresistance of AL-HGBL-MBR.
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Affiliation(s)
- Akiko Uchida
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511 Japan
| | - Yasushi Isobe
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511 Japan
| | - Yu Uemura
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511 Japan
| | - Yuji Nishio
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511 Japan
| | - Hirotaka Sakai
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511 Japan
| | - Masayuki Kato
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511 Japan
| | - Kaori Otsubo
- Department of cytogenetics, SRL Diagnostics, Hachioji Laboratory, Tokyo, Japan
| | - Masahiro Hoshikawa
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masayuki Takagi
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Ikuo Miura
- Division of Hematology & Oncology, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa 216-8511 Japan
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Uchida A, Kasuga Y, Ota M, Yano T. The effects of boysenberries on cholesterol metabolism to prevent atherosclerosis. Journal of Nutrition & Intermediary Metabolism 2017. [DOI: 10.1016/j.jnim.2017.04.138] [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: 11/29/2022] Open
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27
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Sato K, Sakai H, Uchida A, Uemura Y, Tsuruoka Y, Yokoi S, Nishio Y, Matsunawa M, Suzuki Y, Isobe Y, Kato M, Tomita N, Inoue Y, Miura I. Acute myeloid leukemia with t (3;8) (q26.2;q24), a simple variant of 3q26.2/EVI1 translocation. Rinsho Ketsueki 2017; 58:315-322. [PMID: 28484159 DOI: 10.11406/rinketsu.58.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 70-year-old man with pancytopenia was referred to our hospital. His bone marrow comprised 75.4% leukemic blast cells and increased micromegakaryocytes. The leukemic cells were positive for myeloperoxidase and expressed CD2, CD13, CD33, CD34, CD56, CD117, HLA-DR, and MYC. Chromosomal analysis revealed 45,XY,t (3;8) (q26.2;q24),-7[6]/46,XY[14]. Fluorescence in situ hybridization revealed the rearrangement of the ecotropic viral integration site 1 (EVI1) gene. Thus, the patient was diagnosed as having acute myeloid leukemia (AML) with maturation, according to the WHO classification; he achieved complete cytogenetic remission after two courses of combination chemotherapy using anthracyclines and cytarabine. The t (3;8) translocation is a rare simple variant of the 3q26.2/EVI1 translocation, which is an adverse prognostic factor of AML. Clarifying the clinical features of leukemia in patients with simple variant translocations facilitates the development of therapies.
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Affiliation(s)
- Kazuyuki Sato
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Hirotaka Sakai
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Akiko Uchida
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yu Uemura
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yuka Tsuruoka
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Satoshi Yokoi
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yuji Nishio
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Manabu Matsunawa
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yoshinori Suzuki
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yasushi Isobe
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Masayuki Kato
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Naoto Tomita
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Yasuyuki Inoue
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
| | - Ikuo Miura
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
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Acerbi E, Chénard C, Miller D, Gaultier NE, Heinle CE, Chang VWC, Uchida A, Drautz-Moses DI, Schuster SC, Lauro FM. Ecological succession of the microbial communities of an air-conditioning cooling coil in the tropics. Indoor Air 2017; 27:345-353. [PMID: 27120709 DOI: 10.1111/ina.12306] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 04/22/2016] [Indexed: 06/05/2023]
Abstract
Air-conditioning systems harbor microorganisms, potentially spreading them to indoor environments. While air and surfaces in air-conditioning systems are periodically sampled as potential sources of indoor microbes, little is known about the dynamics of cooling coil-associated communities and their effect on the downstream airflow. Here, we conducted a 4-week time series sampling to characterize the succession of an air-conditioning duct and cooling coil after cleaning. Using an universal primer pair targeting hypervariable regions of the 16S/18S ribosomal RNA, we observed a community succession for the condensed water, with the most abundant airborne taxon Agaricomycetes fungi dominating the initial phase and Sphingomonas bacteria becoming the most prevalent taxa toward the end of the experiment. Duplicate air samples collected upstream and downstream of the coil suggest that the system does not act as ecological filter or source/sink for specific microbial taxa during the duration of the experiment.
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Affiliation(s)
- E Acerbi
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - C Chénard
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - D Miller
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - N E Gaultier
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - C E Heinle
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - V W-C Chang
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore, Singapore
| | - A Uchida
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - D I Drautz-Moses
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - S C Schuster
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - F M Lauro
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
- Asian School of the Environment, Nanyang Technological University, Singapore, Singapore
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Tsuruoka Y, Sakai H, Uchida A, Uemura Y, Sato K, Yokoi S, Nishio Y, Matsunawa M, Suzuki Y, Isobe Y, Kato M, Tomita N, Inoue Y, Miura I. Acute myeloid leukemia with t(3;21)(q13;q22), a novel simple variant of the 21q22/RUNX1 translocation. Rinsho Ketsueki 2017; 58:3-8. [PMID: 28190862 DOI: 10.11406/rinketsu.58.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 69-year-old man diagnosed with leukocytosis was referred to our hospital in July 201X. The patient was diagnosed as having a myelodysplastic/myeloproliferative neoplasm. However, he presented with leukemia 2 months later. Chromosomal analysis of a bone marrow sample documented that this patient had a normal karyotype. The patient was successfully treated with idarubicin and cytarabine, and he underwent three courses of consolidation therapy. However, he suffered a relapse in May of the following year. A cytogenetic analysis revealed the presence of a t (3;21) (q13;q22) translocation, and fluorescence in situ hybridization of metaphase spreads detected three signals corresponding to the runt related transcription factor 1 (RUNX1) on the derivative chromosomes 3 and 21, besides the normal chromosome 21. Chromosomal translocations in leukemia often involve genes encoding transcription factors, and the RUNX1 is a common target for such translocations. To the best of our knowledge, this is a novel variant of the RUNX1 translocation. Identifying genes associated with translocations in leukemia contributes to novel insights into the mechanisms of disease progression and chemotherapy resistance and also facilitates the development of molecularly targeted therapies.
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Affiliation(s)
- Yuka Tsuruoka
- Department of Internal Medicine, Division of Hematology and Oncology, St. Marianna University School of Medicine
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Yokoi S, Sakai H, Uchida A, Uemura Y, Sato K, Tsuruoka Y, Nishio Y, Matsunawa M, Suzuki Y, Isobe Y, Kato M, Inoue Y, Hoshikawa M, Miura I. Cytogenetic Study and Analysis of Protein Expression in Plasma Cell Myeloma with t(11;14)(q13;q32): Absence of BCL6 and SOX11, and Infrequent Expression of CD20 and PAX5. J Clin Exp Hematop 2016; 55:137-43. [PMID: 26763361 DOI: 10.3960/jslrt.55.137] [Citation(s) in RCA: 3] [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: 11/01/2022] Open
Abstract
The t(11;14)(q13;q32) translocation is the most common chromosomal translocation in plasma cell myeloma (PCM), but the cytogenetic and immunophenotypic features of PCM with t(11;14)(q13;q32) remain to be fully elucidated. To address the issue, we retrospectively analyzed 21 newly diagnosed PCM patients with the t(11;14)(q13;q32) translocation in our institute. CD20 is a B-cell-specific transmembrane protein that is the topic of much focus as a potential target in immunotherapy. We observed a low incidence of CD20 expression (2 of 21 patients, 11%), although the expression of CD20 was previously reported to be associated with t(11;14)(q13;q32). PAX5 is an essential transcriptional factor involved in B-cell development and commitment, and is down-regulated upon plasma cell differentiation. We observed one patient (6%) with expression of PAX5. The expression of CD19, CD56, and CD138 was detected in one (0.7%), nine (60%), and 13 patients (87%), respectively. Cyclin D1, CD38, and BCL2 were detected in all patients; on the other hand, neither BCL6 nor SOX11 was detected in any of the evaluated patients. Abnormalities of chromosome 13 were detected in six patients (38%), but deletion of TP53 was not observed in any of the evaluated patients. Our results suggest the absence of BCL6 and SOX11 expression, and infrequent expression of CD20, PAX5, and CD56 in PCM with t(11;14)(q13;q32), in contrast to the findings of earlier reports.
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Affiliation(s)
- Satoshi Yokoi
- Department of Pathology and Laboratory Medicine, Showa University School of Medicine
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31
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Watanabe Y, Hirakata H, Okada K, Yamamoto H, Tsuruya K, Sakai K, Mori N, Itami N, Inaguma D, Iseki K, Uchida A, Kawaguchi Y, Ohira S, Tomo M, Masakane I, Akizawa T, Minakuchi J. Proposal for the shared decision-making process regarding initiation and continuation of maintenance hemodialysis. Ther Apher Dial 2015; 19 Suppl 1:108-17. [PMID: 25817935 DOI: 10.1111/1744-9987.12295] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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Takahashi S, Seki Y, Uchida A, Nakayama K, Satoh H. Are tyrosine residues involved in the photoconversion of the water-soluble chlorophyll-binding protein of Chenopodium album? Plant Biol (Stuttg) 2015; 17:632-638. [PMID: 25287526 DOI: 10.1111/plb.12274] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 09/29/2014] [Indexed: 06/03/2023]
Abstract
Non-photosynthetic and hydrophilic chlorophyll (Chl) proteins, called water-soluble Chl-binding proteins (WSCPs), are distributed in various species of Chenopodiaceae, Amaranthaceae, Polygonaceae and Brassicaceae. Based on their photoconvertibility, WSCPs are categorised into two classes: Class I (photoconvertible) and Class II (non-photoconvertible). Chenopodium album WSCP (CaWSCP; Class I) is able to convert the chlorin skeleton of Chl a into a bacteriochlorin-like skeleton under light in the presence of molecular oxygen. Potassium iodide (KI) is a strong inhibitor of the photoconversion. Because KI attacks tyrosine residues in proteins, tyrosine residues in CaWSCP are considered to be important amino acid residues for the photoconversion. Recently, we identified the gene encoding CaWSCP and found that the mature region of CaWSCP contained four tyrosine residues: Tyr13, Tyr14, Tyr87 and Tyr134. To gain insight into the effect of the tyrosine residues on the photoconversion, we constructed 15 mutant proteins (Y13A, Y14A, Y87A, Y134A, Y13-14A, Y13-87A, Y13-134A, Y14-87A, Y14-134A, Y87-134A, Y13-14-87A, Y13-14-134A, Y13-87-134A, Y14-87-134A and Y13-14-87-134A) using site-directed mutagenesis. Amazingly, all the mutant proteins retained not only chlorophyll-binding activity, but also photoconvertibility. Furthermore, we found that KI strongly inhibited the photoconversion of Y13-14-87-134A. These findings indicated that the four tyrosine residues are not essential for the photoconversion.
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Affiliation(s)
- S Takahashi
- Department of Biomolecular Science, Toho University, Funabashi, Chiba, Japan
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33
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Nakazawa H, Uchida A, Minamitani T, Makishi A, Takamatsu Y, Kiyoshi K, Samoto T, Funakoshi T. Factors affecting maternal serum magnesium levels during long-term magnesium sulfate tocolysis in singleton and twin pregnancy. J Obstet Gynaecol Res 2015; 41:1178-84. [PMID: 25857633 DOI: 10.1111/jog.12690] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 11/29/2014] [Accepted: 01/06/2015] [Indexed: 11/30/2022]
Abstract
AIM Our aim was to determine factors that affect maternal serum magnesium (Mg) levels, to help ensure the safety and efficacy of long-term magnesium sulfate (MgSO4 ) therapy for threatened preterm labor in singleton and twin pregnancies. MATERIAL AND METHODS We retrospectively and arbitrarily studied 100 patients (singleton pregnancy, n = 65; twin pregnancy, n = 35) who received i.v. MgSO4 for >48 h for tocolysis of threatened preterm labor. We used multiple regression analysis to investigate the functional relations between the candidate factors and maternal serum Mg levels. RESULTS MgSO4 was administered as a loading dose of 3 g for 1 h followed by a maintenance dose of 1.0-2.0 g/h. There were no maternal severe adverse events related to the elevated Mg levels in any of the subjects. The results of multiple regression analysis revealed that total dose of MgSO4 for 24 h before blood collection (g/day), total serum protein level (g/dL), serum total calcium level (mg/dL), serum creatinine level (mg/dL) and maternal bodyweight (kg) significantly affected maternal serum Mg levels in both singleton and twin pregnancies (all P-values were < 0.001). Gestational age (weeks) and period of MgSO4 administration (days) at blood collection had no significant effect in singleton or twin pregnancies. CONCLUSION Our study statistically shows that dose of MgSO4 , total serum protein level, serum total calcium level, serum creatinine level and maternal bodyweight are key factors to achieving safe and effective long-term tocolysis with MgSO4 in not only singleton but also twin pregnancies.
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Affiliation(s)
- Hiroshi Nakazawa
- Department of Obstetrics, Perinatal Medical Center, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Akiko Uchida
- Department of Obstetrics, Perinatal Medical Center, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Tomoyuki Minamitani
- Department of Obstetrics, Perinatal Medical Center, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Aya Makishi
- Department of Obstetrics, Perinatal Medical Center, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Yukou Takamatsu
- Department of Obstetrics, Perinatal Medical Center, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Kenji Kiyoshi
- Department of Obstetrics, Perinatal Medical Center, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Takashi Samoto
- Department of Obstetrics, Perinatal Medical Center, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Toru Funakoshi
- Department of Obstetrics, Perinatal Medical Center, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
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Komatsu N, Kawakami Y, Banzai A, Ooi HK, Uchida A. Species clarification of Ogasawara cockroaches which inhabit Japan. Trop Biomed 2015; 32:98-108. [PMID: 25801258] [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: 06/04/2023]
Abstract
The so-called "Ogasawara cockroaches" were examined by morphological observations and by breeding experiments to elucidate their actual taxonomical status. Fourteen groups (isolate) of "Ogasawara cockroaches" collected from Iwoto-A, Iwoto-B, Hahajima, Chichijima, Nishijima, Nakodojima, Tokunoshima-A, Tokunoshima-B, Okinawato- A, Okinawa-B, Amamiooshima, Miyakojima, Ishigakijima and Hawaii, were bred and passaged in our laboratory. Cockroaches collected from the field were first reared individually and the sexes of their offspring examined. Cockroaches collected from Iwoto, Tokushima and Okinawa, were found to consist of two groups; those whose offspring were all female and the other whose offspring consist of both male and female. Cross-breeding experiments showed that individuals from the group that did not produce any male but only female offspring were parthenogenetic. On the contrary, the group that have bisexual individuals produced both male and female offspring in a ratio of 1:1. Our results show that the so-called "Ogasawara cockroaches" consist of 2 species, namely, Pycnoscelus surinamensis and Pycnoscelus indicus. There are areas in which both species co-habitated together and there are also areas in which either only one of the two species can be found. The group that reproduces only female offspring and only through parthenogenesis was identified as P. surinamensis. The group that reproduces heterosexually and produce male and female offspring was identified as P. indicus. Thus, the so-called "Ogasawara cockroaches" found in Japan actually consist of 2 species, namely, P. surinamensis and P. indicus, which can be differentiated using the solitary breeding method to demonstrate parthenogenesis in the former and the need for sexual reproduction in the latter.
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Affiliation(s)
- N Komatsu
- Civil International Corporation, 1-10-14 Kitaueno, Taito, Tokyo 110-0014 Japan
| | - Y Kawakami
- Laboratory of Parasitology, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Sagamihara, Kanagawa 252-5201 Japan
| | - A Banzai
- Laboratory of Parasitology, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Sagamihara, Kanagawa 252-5201 Japan
| | - H K Ooi
- Laboratory of Parasitology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara, Kanagawa 252-5201 Japan
| | - A Uchida
- Yamazaki Gakuen University, 4-7-2 Minami-osawa, Hachioji, Tokyo 192-0364 Japan
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35
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Yumioka E, Chinen H, Moriyama H, Nonomura K, Senkyu S, Uchida A. Cultureing periods of thawed blastocysts until embryo transfer:clinical outcome. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.1032] [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: 11/29/2022]
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36
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Melo RMV, Costa LMA, Uchida A, Oikawa FTC, Ribeiro HB, Garcia RMR, Ribeiro EE, Hueb W, Ramires JAF, Kalil Filho R. Prevention of myocardial injury after percutaneous coronary interventions with remote ischemic preconditioning. A comparative analysis with biomarkers and cardiac magnetic resonance. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5487] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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37
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Altarawneh MM, Chern GW, Harrison N, Batista CD, Uchida A, Jaime M, Rickel DG, Crooker SA, Mielke CH, Betts JB, Mitchell JF, Hoch MJR. Cascade of magnetic field induced spin transitions in LaCoO3. Phys Rev Lett 2012; 109:037201. [PMID: 22861888 DOI: 10.1103/physrevlett.109.037201] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Indexed: 06/01/2023]
Abstract
We present magnetization and magnetostriction studies of LaCoO3 in magnetic fields approaching 100 T. In contrast with expectations from single-ion models, the data reveal two distinct first-order transitions and well-defined magnetization plateaus. The magnetization at the higher plateau is only about half the saturation value expected for spin-1 Co3+ ions. These findings strongly suggest collective behavior induced by interactions between different electronic configurations of Co3+ ions. We propose a model that predicts crystalline spin textures and a cascade of four magnetic phase transitions at high fields, of which the first two account for the experimental data.
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Affiliation(s)
- M M Altarawneh
- National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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Abstract
I am a team doctor of three competition groups including professional cycling team for ten years. The most troublesome issue as a sports doctor is the problem about doping. I cope thanks to a mobile telephone and an e-mail regardless of place and time, but introduce some examples because I still experience many doping "near miss" cases. In addition, there are problems in road competition spots as follows; 1) There are few team doctors. I am pressed by the consultation from plural teams, 2) An unexperienced doctor of the doping knowledge often prescribes prohibited drugs, 3) There are problems with no understanding of the medicine made in foreign countries, Chinese medicine, a generic drug, and supplements which obtained on the internet. I hope that anti-doping education in faculty of pharmaceutical sciences is made mandatory, sports pharmacists taken to the sports spot along increase, and a system and a database to teach local doctors and players quickly will be achieved in future.
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Affiliation(s)
- Akiko Uchida
- TSUKUBA Fitness & Sports Medicine Laboratory, Tsukuba, Ibaraki, Japan.
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39
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Uchida A, Ishii Y, Kouyama Y, Tateda K. Crystal structure of the class D β-lactamase OXA-40. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311087873] [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: 11/10/2022] Open
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40
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Yoshikawa H, Ueda T, Kudawara I, Araki N, Yonenobu K, Ochi T, Uchida A. Surgical treatment for skeletal metastases from soft tissue sarcomas: experience with 23 lesions in 20 patients. Sarcoma 2011; 2:107-14. [PMID: 18521241 PMCID: PMC2395386 DOI: 10.1080/13577149878064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Purpose. This paper reports the procedures and the clinical results of a series of surgical treatments for skeletal metastases from soft tissue sarcomas.Subjects and methods. Surgical treatment of metastatic bony lesions from soft tissue sarcomas has been carried out over a 20 year period (1975-1996). Thirty-two patients developed skeletal metastases from soft tissue sarcomas, and 20 of these cases received surgical treatment. The 23 metastatic bony lesions in these 20 patients were treated using the following surgical approaches: wide resection with prosthetic replacement in five lesions, wide or marginal resection without reconstruction in four lesions, intramedullarly nailing with curettage and methylmethacrylate cementation in four lesions, marginal resection of vertebral body with replacement by a ceramic prosthesis in three lesions, laminectomy in three lesions, intramedullarly nailing in two lesions, and curettage in two lesions.Results. Relief of pain was achieved in 17 of the 20 patients. The ambulatory status of the patients with metastasis in the lower extremity or periacetabular region was significantly improved in nine of 10 cases. Seventeen patients died of disease, with a mean survival period of 17.9 months after surgery for metastasis.Discussion. Although surgical treatment for skeletal metastases from soft tissue sarcomas cannot save the life of the patient, it can be of value in improving their well-being and overall quality of life. In these cases, surgical intervention may be more frequently indicated than in tumors with an osteoblastic or mixed pattern.
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Affiliation(s)
- H Yoshikawa
- Department of Orthopaedic Surgery Osaka Medical Center for Cancer and Cardiovascular Diseases 1-3-3, Nakamichi Higashinari-ku Osaka 537 Japan
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41
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Hareyama H, Ito K, Hada K, Uchida A, Hayakashi Y, Hirayama E, Oikawa M, Okuyama K. Reduction/prevention of lower extremity lymphedema after pelvic and para-aortic lymphadenectomy for patients with gynecologic malignancies. Ann Surg Oncol 2011; 19:268-73. [PMID: 21717243 DOI: 10.1245/s10434-011-1863-4] [Citation(s) in RCA: 43] [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] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Indexed: 01/31/2023]
Abstract
BACKGROUND Lower extremity lymphedema (LEL) is a serious complication caused by lymphadenectomy in patients with gynecologic malignancies. In this study, we evaluated the effect of preserving the circumflex iliac lymph nodes (CILNs), i.e., the most caudal external iliac lymph nodes, for the prevention and reduction of LEL by comparing two groups of patients, one in which CILN were removed and the other in which CILNs were preserved. METHODS We retrospectively reviewed 329 patients with gynecologic malignancies who had undergone abdominal complete systematic pelvic and para-aortic lymphadenectomy. The patients were divided into nonpreserved (n = 189) and preserved (n = 140) groups, depending on whether CILNs were removed. Primary outcome measures included the incidence and severity of LEL. RESULTS The incidence of LEL was significantly lower in the preserved group than in the nonpreserved group (P < 0.0001). The frequency of LEL was also significantly lower in the preserved group than in the nonpreserved group regardless of the range of pelvic and para-aortic lymphadenectomy (P < 0.0001). LEL in the overwhelming majority of cases in the preserved group was mild, and no patients experienced severe LEL. Further, the incidence of cellulitis was 0% in the preserved group, while it was 12.7% in the nonpreserved group (P < 0.0001). Lymphoscintigraphy revealed collateral pathways from the preserved CILN along the iliac and large abdominal vessels. CONCLUSIONS This method of lymph node preservation is a simple and extremely effective approach for preventing/reducing LEL after pelvic and para-aortic lymphadenectomy for patients with gynecologic malignancies.
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Affiliation(s)
- Hitoshi Hareyama
- Department of Obstetrics and Gynecology, Sapporo City General Hospital, Sapporo, Japan.
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42
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Rontani D, Locquet A, Sciamanna M, Citrin DS, Uchida A. Generation of orthogonal codes with chaotic optical systems. Opt Lett 2011; 36:2287-2289. [PMID: 21685995 DOI: 10.1364/ol.36.002287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We propose to use an electro-optic oscillator based on two Mach-Zehnder modulators in two different delayed feedback loops to generate two orthogonal chaotic spreading sequences (codes). We numerically demonstrate, for such codes, spectrally efficient multiplexing and demultiplexing of two digital data streams at multi-Gb/s rates using chaos synchronization and covariance-based detection.
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Affiliation(s)
- D Rontani
- Supélec, OPTEL and LMOPS EA-4423, 2 Rue Edouard Belin, F-57070 Metz, France.
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Minobe K, Ono R, Matsumine A, Shibata-Minoshima F, Izawa K, Oki T, Kitaura J, Iino T, Takita J, Iwamoto S, Hori H, Komada Y, Uchida A, Hayashi Y, Kitamura T, Nosaka T. Expression of ADAMTS4 in Ewing's sarcoma. Int J Oncol 2010; 37:569-81. [PMID: 20664926 DOI: 10.3892/ijo_00000706] [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] [Indexed: 11/06/2022] Open
Abstract
Ewing's sarcoma (EWS) is a malignant bone tumor that frequently occurs in teenagers. Genetic mutations which cause EWS have been investigated, and the most frequent one proved to be a fusion gene between EWS gene of chromosome 22 and the FLI1 gene of chromosome 11. However, a limited numbers of useful biological markers for diagnosis of EWS are available. In this study, we identified ADAMTS4 (a disintegrin and metalloproteinase with thrombospondin motifs) as a possible tumor marker for EWS using the retrovirus-mediated signal sequence trap method. ADAMTS4 is a secreted protein of 837 amino acids with a predicted molecular mass of 98-100 kDa. It is a member of metalloprotease family, is expressed mainly in cartilage and brain, and regulates the degradation of aggrecans. ADAMTS4 has been suggested to be involved in arthritic diseases and gliomas. Herein, we show that ADAMTS4 mRNA was expressed in all primary EWS samples and all EWS-derived cell lines examined, while its expression was detected only in small subpopulations of other solid tumors. Furthermore, ADAMTS4 expression was found to be regulated by EWS-FLI1 fusion gene-dependent manner. We also demonstrated that ADAMTS4 protein was highly expressed in tumor samples of the patients with EWS by using immunohistochemistry. These results suggest that ADAMTS4 is a novel tumor marker for EWS.
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Affiliation(s)
- K Minobe
- Department of Microbiology and Molecular Genetics, Mie University Graduate School of Medicine, Tsu, Japan
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44
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McLamore ES, Shi J, Jaroch D, Claussen JC, Uchida A, Jiang Y, Zhang W, Donkin SS, Banks MK, Buhman KK, Teegarden D, Rickus JL, Porterfield DM. A self referencing platinum nanoparticle decorated enzyme-based microbiosensor for real time measurement of physiological glucose transport. Biosens Bioelectron 2010; 26:2237-45. [PMID: 20965716 DOI: 10.1016/j.bios.2010.09.041] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 08/31/2010] [Accepted: 09/21/2010] [Indexed: 10/19/2022]
Abstract
Glucose is the central molecule in many biochemical pathways, and numerous approaches have been developed for fabricating micro biosensors designed to measure glucose concentration in/near cells and/or tissues. An inherent problem for microsensors used in physiological studies is a low signal-to-noise ratio, which is further complicated by concentration drift due to the metabolic activity of cells. A microsensor technique designed to filter extraneous electrical noise and provide direct quantification of active membrane transport is known as self-referencing. Self-referencing involves oscillation of a single microsensor via computer-controlled stepper motors within a stable gradient formed near cells/tissues (i.e., within the concentration boundary layer). The non-invasive technique provides direct measurement of trans-membrane (or trans-tissue) analyte flux. A glucose micro biosensor was fabricated using deposition of nanomaterials (platinum black, multiwalled carbon nanotubes, Nafion) and glucose oxidase on a platinum/iridium microelectrode. The highly sensitive/selective biosensor was used in the self-referencing modality for cell/tissue physiological transport studies. Detailed analysis of signal drift/noise filtering via phase sensitive detection (including a post-measurement analytical technique) are provided. Using this highly sensitive technique, physiological glucose uptake is demonstrated in a wide range of metabolic and pharmacological studies. Use of this technique is demonstrated for cancer cell physiology, bioenergetics, diabetes, and microbial biofilm physiology. This robust and versatile biosensor technique will provide much insight into biological transport in biomedical, environmental, and agricultural research applications.
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Affiliation(s)
- E S McLamore
- Bindley Bioscience Center, Physiological Sensing Facility, Purdue University, 1203 W, State Street, West Lafayette, IN, USA
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45
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Matsubara T, Kusuzaki K, Matsumine A, Murata H, Marunaka Y, Hosogi S, Uchida A, Sudo A. Photodynamic therapy with acridine orange in musculoskeletal sarcomas. ACTA ACUST UNITED AC 2010; 92:760-2. [PMID: 20513869 DOI: 10.1302/0301-620x.92b6.23788] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Limb salvage involving wide resection and reconstruction is now well established for managing musculoskeletal sarcomas. However, involvement of major nerves and vessels with a large volume of muscle and skin may result in a useless limb, contributing to depression and a low quality of life. We have been studying alternative treatments for musculoskeletal sarcoma since 1990, and have recently established a regime using photodynamic surgery with cells labelled with acridine orange, photodynamic therapy with cells treated similarly and radiodynamic treatment using the effect of X-rays on such cells. These techniques have been used after marginal or intralesional resection of tumours since 1999 and have enabled maintenance of excellent limb function in patients with sarcomas.
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Affiliation(s)
- T Matsubara
- Department of Orthopaedic Surgery Mie University Graduate School of Medicine, Edobashi 2-174 Tsu City, Japan
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Okamura N, Hasegawa M, Nakoshi Y, Iino T, Sudo A, Imanaka-Yoshida K, Yoshida T, Uchida A. Deficiency of tenascin-C delays articular cartilage repair in mice. Osteoarthritis Cartilage 2010; 18:839-48. [PMID: 19747998 DOI: 10.1016/j.joca.2009.08.013] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [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] [Received: 06/02/2009] [Revised: 08/13/2009] [Accepted: 08/26/2009] [Indexed: 02/02/2023]
Abstract
OBJECTIVE In human articular cartilage, tenascin-C (TN-C) expression decreases during maturation of chondrocytes, and almost disappears in adults; however, it reappears in damaged cartilage. To examine the effects of TN-C on cartilage degeneration and repair, we compared articular cartilage degeneration between wild-type (WT) and tenascin-C knockout mouse (TNKO) mice using a spontaneous osteoarthritis (OA) in aged joints and surgical OA model. In addition, we made full-thickness cartilage defects and compared the cartilage repair process between the two groups. METHODS The surgical procedure to create degenerative OA model was performed by transecting the anterior cruciate ligament and medial collateral ligament. Full-thickness defects were created in the center of the femoral trochlea to evaluate cartilage repair. Sections of cartilage were stained with hematoxylin and eosin or safranin-O, and immunostaining for TN-C. The degrees of degeneration and repair were graded. RESULTS In the WT surgical OA model, the articular cartilage was almost normal at 2 weeks, but safranin-O decreased staining at 4 weeks. In TNKO mice, safranin-O decreased staining at 2 weeks, and cartilage was injured intensely at 4 weeks. In the cartilage repair model, TN-C was expressed after 1 week, was strongly expressed in the upper layer of regenerated tissue after 3 weeks, and disappeared after 6 weeks. The defects were restored until 6 weeks in WT mice; however, defects in TNKO mice were filled with fibrous tissue with no cartilage-like tissue. CONCLUSIONS This study revealed that cartilage repair in TNKO mice was significantly slower than that in WT mice and that the deficiency of TN-C progressed during cartilage degeneration.
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Affiliation(s)
- N Okamura
- Departments of Orthopedic Surgery, Mie University Graduate School of Medicine, Mie, Japan
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47
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Abstract
OBJECTIVE Aseptic loosening is one of the most important problems that can occur after total hip arthroplasty (THA). In this study, we analysed levels of large tenascin-C (TN-C) variants and compared them in pseudosynovial fluid from patients with aseptic loosening after THA with those in synovial fluid from patients undergoing primary THA (control). METHODS Pseudosynovial fluid samples (n = 24) were obtained by aspiration at the time of revision THA performed due to aseptic loosening. Synovial fluid samples (n = 12) were obtained by aspiration at the time of primary THA. Expression of TN-C splice variants was examined using immunoblotting. TN-C levels were measured using an enzyme-linked immunosorbent assay (ELISA) system that we developed previously. RESULTS Western blotting showed the presence of large TN-C variants in pseudosynovial fluid of artificial joints with loosening. TN-C levels were approximately three times higher in pseudosynovial fluid of loose artificial joints (median 151.9 ng/mL) than in synovial fluid controls (median 50.1 ng/mL) (p = 0.035). CONCLUSION Levels of TN-C including large variant subunits are elevated in pseudosynovial fluid of loose artificial joints, indicating that TN-C is a useful novel biochemical marker of loose hip prostheses.
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Affiliation(s)
- M Hasegawa
- Department of Orthopaedic Surgery, Mie University Faculty of Medicine, Japan.
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48
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Abstract
Ectopic infection with Paragonimus miyazakii was determined to be the cause of a subcutaneous inguinal mass in a 15-month-old, male, boar-hunting dog. On histologic examination, the mass comprised granulomatous panniculitis, intralesional adult trematodes and eggs, and lymphadenitis. Extrapulmonary paragonimosis in animals is rare. This appears to be the first report in a dog of ectopic P. miyazakii infection with mature trematodes and eggs that involved the inguinofemoral lymphocenter and surrounding subcutis.
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Affiliation(s)
- H Madarame
- Laboratory of Small Animal Clinics, Veterinary Teaching Hospital, Azabu University, Kanagawa 229-8501, Japan.
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49
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Sugimura Y, Murase T, Oyama K, Uchida A, Sato N, Hayasaka S, Kano Y, Takagishi Y, Hayashi Y, Oiso Y, Murata Y. Prevention of neural tube defects by loss of function of inducible nitric oxide synthase in fetuses of a mouse model of streptozotocin-induced diabetes. Diabetologia 2009; 52:962-71. [PMID: 19283362 DOI: 10.1007/s00125-009-1312-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [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] [Received: 08/15/2008] [Accepted: 02/08/2009] [Indexed: 12/12/2022]
Abstract
AIMS/HYPOTHESIS Maternal diabetes during pregnancy increases the risk of congenital malformations such as neural tube defects (NTDs). Although the mechanism of this effect is uncertain, it is known that levels of nitric oxide synthase (NOS) and nitric oxide are elevated in embryos of a mouse model of diabetes. We postulated that overproduction of nitric oxide causes diabetes-induced congenital malformations and that inhibition of inducible NOS (iNOS) might prevent diabetic embryopathy. METHODS Mice were rendered hyperglycaemic by intraperitoneal injection of streptozotocin. The incidence of congenital malformations including NTDs was evaluated on gestational day 18.5. We assessed the involvement of iNOS in diabetes-induced malformation by administering ONO-1714, a specific inhibitor of iNOS, to pregnant mice with streptozotocin-induced diabetic mice and by screening mice with iNOS deficiency due to genetic knockout (iNos(-/-)). RESULTS ONO-1714 markedly reduced the incidence of congenital anomalies, including NTDs, in fetuses of a mouse model of diabetes. It also prevented apoptosis in the head region of fetuses, indicating that iNOS is involved in diabetes-related congenital malformations. Indeed, no NTDs were observed in fetuses of diabetic iNos(-/-) mice and the incidence of other malformations was also markedly reduced. CONCLUSIONS/INTERPRETATION We conclude that increased iNOS activity during organogenesis plays a crucial role in the pathogenesis of diabetes-induced malformations and suggest that inhibitors of iNOS might help prevent malformations, especially NTDs, in diabetic pregnancy.
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Affiliation(s)
- Y Sugimura
- Department of Genetics, Research Institute of Environmental Medicine, Nagoya University, Chikusa-ku, Nagoya, Japan
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Morishita K, Kasai Y, Ueta T, Shiba K, Akeda K, Uchida A. Patellar tendon reflex as a predictor of improving motor paralysis in complete paralysis due to cervical cord injury. Spinal Cord 2009; 47:640-2. [PMID: 19223860 DOI: 10.1038/sc.2009.8] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
STUDY DESIGN A retrospective study. OBJECTIVE We have encountered several cases of complete sensorimotor paralysis in which patellar tendon reflex (PTR) was demonstrated approximately 3 days after injury and improvement of motor paralysis was subsequently achieved. We considered that PTR apparent in the early stage after injury may offer an index to predict improvements in motor paralysis. MATERIALS AND METHODS A total of 142 patients assessed as ASIA Impairment Scale A on admission from 1979 to 1998 were included in the study. The patients who demonstrated PTR within 72 h after injury were classified as the PTR(+) group and those who did not constituted the PTR(-) group. With regard to the method of motor paralysis assessment at about 6 months after injury, patients assessed as ASIA Impairment Scale A or B (that is, complete motor paralysis) were classified as 'Non-recovered', whereas those assessed as ASIA Impairment Scale C, D or E (that is, showing obvious improvement of motor paralysis) were considered as 'Recovered'. RESULTS A significant difference was noted between groups, with the Recovered group including 16 of the 17 PTR(+) patients (94.1%) and 11 of the 115 PTR(-) patients (9.6%) (P<0.0001). CONCLUSION The results obtained indicate that motor paralysis recovery could be expected at a very high rate among patients demonstrating PTR within 72 h of injury. As all physicians should be familiar with the PTR, this seems to represent a simple and highly useful sign to predict improvements in motor paralysis during the acute stage of cervical cord injury.
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Affiliation(s)
- K Morishita
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Mie Prefecture, Japan
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