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Igarashi A, Takezawa Y, Ozawa Y, Saito T, Nakayama H, Makino T, Etsunaga T, Saito Y, Kobayashi M. A rare case of a testicular lesion related to hand, foot, and mouth disease. IJU Case Rep 2024; 7:262-265. [PMID: 38686077 PMCID: PMC11056250 DOI: 10.1002/iju5.12721] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/21/2024] [Indexed: 05/02/2024] Open
Abstract
Introduction Hand, foot, and mouth disease generally occurs in children. In rare cases, hand, foot, and mouth disease affects the testicles. Case presentation A 29-year-old man presented to our emergency department with testicular pain for several days after the onset of hand, foot, and mouth disease. Ultrasonography revealed hypoechoic mass-like areas in the right testis. A mild inflammatory response was noted, tumor markers and urinary data were normal, and tests for infection were all negative. Antibiotics were initiated and ultrasonography was performed in every subsequent examination. Testicular pain disappeared 6 months later. Conclusion We encountered a rare case of a testicular lesion related to hand, foot, and mouth disease that was successfully treated. The careful selection of treatment for testicular pain and scrotal enlargement in young adult males, such as surgery and symptomatic treatment, based on their medical history and laboratory findings, is important.
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Affiliation(s)
- Ayaka Igarashi
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
| | - Yutaka Takezawa
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
| | - Yuki Ozawa
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
| | - Tomomi Saito
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
| | - Hiroshi Nakayama
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
| | - Takeaki Makino
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
| | - Toru Etsunaga
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
| | - Yoshitaka Saito
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
| | - Mikio Kobayashi
- Department of UrologyIsesaki Municipal HospitalIsesakiGunmaJapan
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2
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Ozawa Y, Fujimiya T, Shimada A, Okazawa A, Kusano J, Yamamoto R, Hyasashi S. Successful continuance of CDK4/6 inhibitor treatment with palbociclib after abemaciclib-induced hepatotoxicity in breast cancer: a case report. Anticancer Drugs 2024; 35:89-92. [PMID: 37578747 DOI: 10.1097/cad.0000000000001529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Abemaciclib, a cyclin-dependent kinase 4/6 (CDK4/6) inhibitor, causes severe hepatotoxicity, a severe adverse event associated with the loss of treatment opportunities. We report a case of liver injury (grade 4) during treatment with abemaciclib, in which the patient was switched to palbociclib and successfully treated with this CDK4/6 inhibitor. A 73-year-old woman with bone metastatic breast cancer (hormone-positive, HER2-negative) was treated with abemaciclib, fulvestrant, denosumab, and precipitated calcium carbonate with cholecalciferol and magnesium carbonate (pCCCM). On day 17, the patient developed skin rashes on her trunk and arms. On day 22, abemaciclib and pCCCM were discontinued due to drug eruption. Grade 3 aspartate aminotransferase (AST) and grade 4 alanine aminotransferase (ALT) levels increased on day 29. Therefore, fulvestrant and denosumab were suspended as the causes of severe hepatotoxicity, in addition to the two drugs suspected of causing the skin eruption. On day 43, AST and ALT levels did not improve, and the patient was referred to a hepatologist. The hepatologist diagnosed hepatotoxicity as a drug-induced liver injury through additional tests and interviews. Fulvestrant treatment was resumed on day 78, and palbociclib on day 92, and denosumab and pCCCM on day 134. On day 287, treatment with the CDK4/6 inhibitor was continued without evidence of liver dysfunction. This case suggests that rechallenge with palbociclib after severe liver injury with abemaciclib may allow for continued treatment with CDK4/6 inhibitors.
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Affiliation(s)
- Yuki Ozawa
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital; 3-7-3 Minatomirai, Nishi-ku, Yokohama city, Kanagawa
| | - Tatsuhiro Fujimiya
- Department of Practical Pharmacy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji-city, Tokyo
| | - Akihiko Shimada
- Departments of Breast Surgery, Kanagawa Prefectural Keiyukai Keiyu Hospital
| | - Akira Okazawa
- Gastroenterology, Kanagawa Prefectural Keiyukai Keiyu Hospital, Yokohama city, Kanagawa, Japan
| | - Junichi Kusano
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital; 3-7-3 Minatomirai, Nishi-ku, Yokohama city, Kanagawa
| | - Ryusei Yamamoto
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital; 3-7-3 Minatomirai, Nishi-ku, Yokohama city, Kanagawa
| | - Seiichi Hyasashi
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital; 3-7-3 Minatomirai, Nishi-ku, Yokohama city, Kanagawa
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3
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Hashizume T, Ozawa Y, Ying BW. Employing active learning in the optimization of culture medium for mammalian cells. NPJ Syst Biol Appl 2023; 9:20. [PMID: 37253825 DOI: 10.1038/s41540-023-00284-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 05/18/2023] [Indexed: 06/01/2023] Open
Abstract
Medium optimization is a crucial step during cell culture for biopharmaceutics and regenerative medicine; however, this step remains challenging, as both media and cells are highly complex systems. Here, we addressed this issue by employing active learning. Specifically, we introduced machine learning to cell culture experiments to optimize culture medium. The cell line HeLa-S3 and the gradient-boosting decision tree algorithm were used to find optimized media as pilot studies. To acquire the training data, cell culture was performed in a large variety of medium combinations. The cellular NAD(P)H abundance, represented as A450, was used to indicate the goodness of culture media. In active learning, regular and time-saving modes were developed using culture data at 168 h and 96 h, respectively. Both modes successfully fine-tuned 29 components to generate a medium for improved cell culture. Intriguingly, the two modes provided different predictions for the concentrations of vitamins and amino acids, and a significant decrease was commonly predicted for fetal bovine serum (FBS) compared to the commercial medium. In addition, active learning-assisted medium optimization significantly increased the cellular concentration of NAD(P)H, an active chemical with a constant abundance in living cells. Our study demonstrated the efficiency and practicality of active learning for medium optimization and provided valuable information for employing machine learning technology in cell biology experiments.
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Affiliation(s)
- Takamasa Hashizume
- School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Ibaraki, Japan
| | - Yuki Ozawa
- School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Ibaraki, Japan
| | - Bei-Wen Ying
- School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Ibaraki, Japan.
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4
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Ozawa Y, Kimura S, Zhu Y, Kurihara A, Bao Y. Research on Omnidirectional Stereo Measurement Using Convex Mirrors and Vertical Disparity. Sensors (Basel) 2023; 23:3243. [PMID: 36991954 PMCID: PMC10052196 DOI: 10.3390/s23063243] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
We propose an omnidirectional measurement method without blind spots by using a convex mirror, which in principle does not cause chromatic aberration, and by using vertical disparity by installing cameras at the top and bottom of the image. In recent years, there has been significant research in the fields of autonomous cars and robots. In these fields, three-dimensional measurements of the surrounding environment have become indispensable. Depth sensing with cameras is one of the most important sensors for recognizing the surrounding environment. Previous studies have attempted to measure a wide range of areas using fisheye and full spherical panoramic cameras. However, these approaches have limitations such as blind spots and the need for multiple cameras to measure all directions. Therefore, this paper describes a stereo camera system that uses a device capable of taking an omnidirectional image with a single shot, enabling omnidirectional measurement with only two cameras. This achievement was challenging to attain with conventional stereo cameras. The results of experiments confirmed an improvement in accuracy of up to 37.4% compared to previous studies. In addition, the system succeeded in generating depth image that can recognize distances in all directions in a single frame, demonstrating the possibility of omnidirectional measurement with two cameras.
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Affiliation(s)
- Yuki Ozawa
- Correspondence: ; Tel.: +81-80-6641-7088
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Ozawa Y, Haruki Y, Ohata M, Isono H, Takahashi M, Tate A, Ukita S, Hayashi S. [Survey of Prophylactic Administration of Naldemedine for Opioid-induced Constipation]. YAKUGAKU ZASSHI 2023; 143:183-189. [PMID: 36724931 DOI: 10.1248/yakushi.22-00181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Opioid-induced constipation (OIC), an adverse event that occurs due to opioid analgesics, reportedly causes poor quality of life and adherence to opioid analgesics in patients. Therefore, this issue must be addressed appropriately. Naldemedine (NAL), a peripherally-acting μ-opioid receptor antagonist, is currently recommended for treating OIC when other laxatives are ineffective, but there have been no clinical reports of NAL being used prophylactically for OIC. Therefore, we conducted a retrospective survey of hospitalized patients who received NAL as prophylaxis for OIC with strong opioid analgesics to clarify the reality of this situation and to consider points to be taken into account in its clinical implementation. In this study, 61.7% of the subjects had an Eastern Cooperative Oncology Group performance status score of 3 or higher. The rate of addition of new laxatives and increased laxatives during seven days of NAL prophylaxis was 46.8%, and the rate of diarrhea was 6.1%. This study suggests that patients initiated with strong opioid analgesics during hospitalization often presented with poor performance status, and it is important to pay attention to constipation even under NAL prophylaxis. However, the incidence of diarrhea was low, and the safety of NAL prophylaxis was considered to be good.
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Affiliation(s)
- Yuki Ozawa
- Department of Phamacy, Kanagawa Prefectural Keiyukai Keiyu Hospital
| | - Yayoi Haruki
- Department of Phamacy, Kanagawa Prefectural Keiyukai Keiyu Hospital
| | - Meiko Ohata
- Department of Phamacy, Kanagawa Prefectural Keiyukai Keiyu Hospital
| | - Hisayo Isono
- Department of Palliative Care Internal Medicine, Kanagawa Prefectural Keiyukai Keiyu Hospital
| | - Minami Takahashi
- Department of Palliative Care Internal Medicine, Kanagawa Prefectural Keiyukai Keiyu Hospital
| | - Aki Tate
- Department of Anesthesiology, Kanagawa Prefectural Keiyukai Keiyu Hospital
| | - Seiko Ukita
- Department of Nursing, Kanagawa Prefectural Keiyukai Keiyu Hospital
| | - Seiichi Hayashi
- Department of Phamacy, Kanagawa Prefectural Keiyukai Keiyu Hospital
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6
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Price T, Prenen H, Lugowska I, Falchook G, Monzon J, Arkenau H, Chawla S, Hui M, Kuboki Y, Dziadziuszko R, Ozawa Y, Elez Fernandez M, Rocha Lima C, Subbiah V, Tan D, Wang K, Hindoyan A, Shi W, Kistler M, Hashemi Sadraei N. 142P Updated results from a phase I, open-label, multicenter, first-in-human study of AMG 404, a checkpoint inhibitor, in patients with advanced solid tumors. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.161] [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: 10/19/2022] Open
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7
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Edo N, Morita K, Ishiwata C, Nakajima R, Sayama Y, Suzuki T, Sakamoto M, Okamoto K, Uchino T, Ozawa Y, Uno K, Uno K, Tsukamoto K, Ishikawa T. Diagnostic value of standard deviation score of log-transformed serum dehydroepiandrosterone sulfate in patients with hypothalamic-pituitary-adrenal axis insufficiency. Endocr J 2021; 68:1337-1345. [PMID: 34162776 DOI: 10.1507/endocrj.ej21-0140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Serum dehydroepiandrosterone sulfate (DHEA-S) levels reflect the state of adrenocorticotropic hormone (ACTH) secretion. However, it is difficult to use serum DHEA-S to diagnose hypothalamic-pituitary-adrenal (HPA) axis insufficiency due to its non-normal and highly skewed distribution. In this study, we focused on HPA insufficiency caused by hypothalamic and/or pituitary dysfunction and evaluated the usefulness of the standard deviation score of log-transformed DHEA-S (ln DHEA-S SD score), which was calculated from the established age- and sex-specific reference values. We retrospectively reviewed the medical records of 94 patients suspected of having HPA insufficiency, in whom serum DHEA-S measurement and the rapid ACTH stimulation test were performed, and included 65 patients who met our criteria in this study. The ln DHEA-S SD scores were distributed more normally than measured DHEA-S levels and were significantly higher in patients with a peak cortisol level ≥18 μg/dL than in those below this value, suggesting that this score is a legitimate and strong indicator of adrenocortical function. The optimal cut-off value for impaired HPA function was -0.853, with a sensitivity of 70.3% and a specificity of 100%. Among the 37 patients whose peak cortisol levels were below 18 μg/dL, 11 patients with ln DHEA-S scores ≥-0.853 exhibited significantly higher basal ACTH and basal and peak cortisol levels than the 26 patients with scores <-0.853. Thus, this score plays a supportive role in evaluating HPA axis function, particularly in patients with borderline cortisol responses to ACTH.
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Affiliation(s)
- Naoki Edo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
- Department of Clinical Research Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Koji Morita
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Chisato Ishiwata
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Rina Nakajima
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Yohei Sayama
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Takashi Suzuki
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Miki Sakamoto
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Kaori Okamoto
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Takuya Uchino
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Yuki Ozawa
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Shin-Kuki General Hospital, Saitama 346-0021, Japan
| | - Kiyoko Uno
- Teikyo Academic Research Center, Teikyo University, Tokyo 173-8605, Japan
| | - Kenji Uno
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Kazuhisa Tsukamoto
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
| | - Toshio Ishikawa
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo 173-8605, Japan
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8
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Miura S, Azuma K, Yoshioka H, Teraoka S, Ishii H, Koyama K, Kibata K, Ozawa Y, Tokito T, Koh Y, Shimokawa T, Kurata T, Yamamoto N, Tanaka H. MA02.05 A Phase I Study of Afatinib in Combination With Osimertinib in Patients After Failure of Prior Osimertinib. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.114] [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: 10/20/2022]
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9
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Miyaura K, Fujii T, Kubo T, Shinjoh H, Kato M, Toyofuku K, Niiya A, Kobayashi R, Ozawa Y, Murakami K, Morota M, Imai A, Ito Y, Kagami Y. PO-0169 Effects of uncertainty with Strut Adjusted Volume Implant applicator in Japan. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06328-3] [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: 10/21/2022]
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10
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Ozawa Y, Harutani Y, Oyanagi J, Murakami E, Sato K, Akamatsu H, Hayata A, Teraoka S, Ueda H, Kitamura Y, Fukuoka J, Tokudome N, Nakanishi M, Koh Y, Yamamoto N. P60.08 Impact of CD24 and CD47 Tumor Expression on Efficacy and Serum Cytokine Alteration with PD-1/L1 Inhibitors in Non-Small Cell Lung cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.967] [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: 10/21/2022]
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Uzawa A, Kuwabara S, Suzuki S, Imai T, Murai H, Ozawa Y, Yasuda M, Nagane Y, Utsugisawa K. Roles of cytokines and T cells in the pathogenesis of myasthenia gravis. Clin Exp Immunol 2020; 203:366-374. [PMID: 33184844 DOI: 10.1111/cei.13546] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/25/2020] [Accepted: 11/01/2020] [Indexed: 12/12/2022] Open
Abstract
Myasthenia gravis (MG) is characterized by muscle weakness and fatigue caused by the presence of autoantibodies against the acetylcholine receptor (AChR) or the muscle-specific tyrosine kinase (MuSK). Activated T, B and plasma cells, as well as cytokines, play important roles in the production of pathogenic autoantibodies and the induction of inflammation at the neuromuscular junction in MG. Many studies have focused on the role of cytokines and lymphocytes in anti-AChR antibody-positive MG. Chronic inflammation mediated by T helper type 17 (Th17) cells, the promotion of autoantibody production from B cells and plasma cells by follicular Th (Tfh) cells and the activation of the immune response by dysfunction of regulatory T (Treg ) cells may contribute to the exacerbation of the MG pathogenesis. In fact, an increased number of Th17 cells and Tfh cells and dysfunction of Treg cells have been reported in patients with anti-AChR antibody-positive MG; moreover, the number of these cells was correlated with clinical parameters in patients with MG. Regarding cytokines, interleukin (IL)-17; a Th17-related cytokine, IL-21 (a Tfh-related cytokine), the B-cell-activating factor (BAFF; a B cell-related cytokine) and a proliferation-inducing ligand (APRIL; a B cell-related cytokine) have been reported to be up-regulated and associated with clinical parameters of MG. This review focuses on the current understanding of the involvement of cytokines and lymphocytes in the immunological pathogenesis of MG, which may lead to the development of novel therapies for this disease in the near future.
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Affiliation(s)
- A Uzawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Suzuki
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - T Imai
- Department of Neurology, Sapporo Medical University Hospital, Sapporo, Japan
| | - H Murai
- Department of Neurology, International University of Health and Welfare, Narita, Japan
| | - Y Ozawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - M Yasuda
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Nagane
- Department of Neurology, Hanamaki General Hospital, Hanamaki, Japan
| | - K Utsugisawa
- Department of Neurology, Hanamaki General Hospital, Hanamaki, Japan
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12
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Uzawa A, Kojima Y, Ozawa Y, Yasuda M, Onishi Y, Akamine H, Kawaguchi N, Himuro K, Kuwabara S. Serum level of soluble urokinase plasminogen activator receptor (suPAR) as a disease severity marker of myasthenia gravis: a pilot study. Clin Exp Immunol 2020; 202:321-324. [PMID: 32706905 DOI: 10.1111/cei.13499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/20/2020] [Accepted: 07/20/2020] [Indexed: 02/04/2023] Open
Abstract
Myasthenia gravis (MG) is an autoantibody-mediated inflammatory disease of the neuromuscular junction. Biomarkers indicating disease activity in MG are warranted. Recently, the soluble urokinase plasminogen activator receptor (suPAR) has been reported to be associated with inflammation, tissue damage, disease activity and prognosis in various diseases, including autoimmune diseases. In this study, serum suPAR levels were measured in 40 patients with anti-acetylcholine receptor antibody-positive MG and 30 controls, and their correlations with clinical variables and severity scale scores were investigated. We identified that serum suPAR levels significantly correlated with MG activities of daily living scale (Spearman's ρ = 0·45; P = 0·004) and MG Foundation of America classification (Spearman's ρ = 0·37; P = 0·02) at serum sampling, but not with anti-acetylcholine receptor antibody titers. In conclusion, serum suPAR levels can be a candidate for a novel biomarker of disease activity in anti-acetylcholine receptor antibody-positive MG.
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Affiliation(s)
- A Uzawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Kojima
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Neurology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Ozawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - M Yasuda
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Onishi
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - H Akamine
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - N Kawaguchi
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Neurology, Dowa Institute of Clinical Neuroscience, Neurology Clinic Chiba, Chiba, Japan
| | - K Himuro
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Neurology, Matsudo Neurology Clinic, Chiba, Japan
| | - S Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
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13
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Takano S, Shibata S, Maehara M, Hobo A, Hotta N, Ozawa Y, Shibamoto Y. Reasons for Undergoing CT During Childhood: Is the Population Comparable to the Population with No Experience of CT? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Ozawa Y, Ogai A, Kusano J, Ikari K, Yamamoto R, Yoshida R, Chen CK, Hayashi S. [A Case of Adult T-Cell Leukemia/Lymphoma with Severe Hand-Foot Syndrome during Administration of Modified LSG15 Regimen]. Gan To Kagaku Ryoho 2020; 47:1477-1480. [PMID: 33130744] [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: 06/11/2023]
Abstract
The patient was a 56-year-old woman. A modified LSG15(VCAP-AMP-VECP)regimen was initiated as the first-line treatment for acute adult T-cell leukemia/lymphoma. On day 13 from the initiation of the second course of chemotherapy, the onset of hand-foot syndrome(HFS)(hands: Grade 2; feet: Grade 1)occurred. Therefore, the administration of a heparin analog cream and betamethasone butyrate propionate ointment was initiated. On day 20 from the start of the second course of chemotherapy, the foot symptoms improved; however, hand symptoms deteriorated to Grade 3. Frequent use of alcohol-based hand hygiene products is associated with infection prevention during neutropenia, but was likely an exacerbating factor. The symptoms gradually improved after this was taken into consideration, and the usage was discontinued. At the start of the third course, the symptoms had improved to Grade 1, and chemotherapy was continued. On day 11, symptoms worsened(Grade 2). HFS management was performed similar to that in the second course, and symptoms improved again.
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Affiliation(s)
- Yuki Ozawa
- Dept. of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital
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15
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Ozawa Y, Uzawa A, Yasuda M, Kojima Y, Oda F, Himuro K, Kawaguchi N, Kuwabara S. Changes in serum complements and their regulators in generalized myasthenia gravis. Eur J Neurol 2020; 28:314-322. [PMID: 32889770 DOI: 10.1111/ene.14500] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/19/2020] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To investigate changes in serum complements and their regulators in the pathogenesis of myasthenia gravis (MG). METHODS Forty-four patients with acetylcholine receptor antibody-positive MG, as well as 20 patients with non-inflammatory neurological disorders were enrolled. Serum complements (C3, C4 and soluble C5b-9) and complement regulators (vitronectin, clusterin and properdin) were extensively analysed by enzyme-linked immunosorbent assay and their associations with clinical profiles of MG were examined. RESULTS Serum C3, C4 and clusterin levels were not significantly different between patients with MG and controls. The patients with MG had higher soluble C5b-9 (P = 0.09) and vitronectin (P = 0.001) levels than the controls; moreover, vitronectin levels decreased after treatment (P = 0.09). Serum properdin (P = 0.03) levels were lower in the patients with MG than in the controls, and negatively correlated with the MG Activities of Daily Living score (rs = -0.26, P = 0.09) and with the presence of bulbar palsy (P = 0.04). CONCLUSION Our results show that activation of complements and an altered complement network could contribute to the inflammatory pathogenesis of MG.
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Affiliation(s)
- Y Ozawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - A Uzawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - M Yasuda
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Kojima
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - F Oda
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Neurology, National Hospital Organization Chiba Medical Center, Chiba, Japan
| | - K Himuro
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Matsudo Neurology Clinic, Matsudo, Japan
| | - N Kawaguchi
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Neurology, Neurology Clinic Chiba, Dowa Institute of Clinical Neuroscience, Chiba, Japan
| | - S Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
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16
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Ozawa Y, Santo N, Yagi Y, Nishiyama T, Yokoi T, Koike S, Nakamura K, Ishioka K, Ozu C, Toya K, Yorozu A, Saito S. Response of leukocyte to iodine-125 permanent prostate seed implantation predict PSA failure in patients with localized prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32717-8] [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: 11/28/2022] Open
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17
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Ozawa Y, Santo N, Yagi Y, Nishiyama T, Yokoi T, Koike S, Nakamura K, Ishioka K, Ozu C, Toya K, Yorozu A, Saito S. Secondary bladder cancer arising after iodine-125 permanent seed implantation for localized prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34033-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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18
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Miyaji T, Kawaguchi T, Azuma K, Suzuki S, Sano Y, Akatsu M, Torii A, Kamimura T, Ozawa Y, Tsuchida A, Eriguchi D, Hashiguchi M, Nishino M, Nishi M, Inadome Y, Yamazaki T, Kiuchi T, Yamaguchi T. Patient-generated health data collection using a wearable activity tracker in cancer patients-a feasibility study. Support Care Cancer 2020; 28:5953-5961. [PMID: 32281031 DOI: 10.1007/s00520-020-05395-z] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 03/04/2020] [Indexed: 11/12/2022]
Abstract
PURPOSE Incorporation of patient-generated health data (PGHD) into clinical research requires an investigation of the validity of outcomes and feasibility of implementation. This single-arm pilot trial investigated the feasibility of using a commercially available activity tracking wearable device in cancer patients to assess adherence to the device and real-time PGHD collection in a clinical research setting. METHODS From July to November 2017, enrolled adult patients were asked to wear a wristband-style device. Brief Fatigue Inventory (BFI) and MD Anderson Symptom Inventory (MDASI) were assessed at baseline and on day 29. Furthermore, 29-day Pittsburgh Sleep Quality Index, global impression of the devices, and NCI CTCAE v4 were evaluated. RESULTS Of 30 patients (mean age, 58.6 years; male, 21 [70%]), 15 (50%) and 11 (36.7%) had gastrointestinal and lung cancer, respectively, and 27 (90%, 95% CI: 0.74-0.98) were well adhered (> 70%) to the device for 28 days. The mean adherence was 84.9% (range: 41.7-95.2%). More frequent PGHD synchronization tended to show better device adherence, with moderate correlation (r = 0.62, 95% CI: 0.33-0.80, p < 000.1). CONCLUSIONS The feasibility of using a wearable activity tracker was confirmed in cancer patients receiving chemotherapy for a month. For future implementation in clinical trials, there is a need for further comprehensive assessment of the validity and reliability of wearable activity trackers. TRIAL REGISTRATION This trial was registered at the University Hospital Medical Information Network Clinical Trials Registry as UMIN: UMIN000027575.
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Affiliation(s)
- Tempei Miyaji
- Department of Clinical Trial Data Management, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan. .,Division of Biostatistics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
| | - Takashi Kawaguchi
- Department of Practical Pharmacy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji City, Tokyo, 192-0392, Japan
| | - Kanako Azuma
- Department of Pharmacy, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Shinya Suzuki
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital, 3-7-3 Minatomirai, Nishi-ku, Yokohama-shi, Kanagawa, 220-8521, Japan.,Department of Hospital Pharmaceutics, School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Yoko Sano
- Department of Pharmacy, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Moe Akatsu
- Department of Pharmacy, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Ayako Torii
- Department of Pharmacy, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Tadamasa Kamimura
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital, 3-7-3 Minatomirai, Nishi-ku, Yokohama-shi, Kanagawa, 220-8521, Japan
| | - Yuki Ozawa
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital, 3-7-3 Minatomirai, Nishi-ku, Yokohama-shi, Kanagawa, 220-8521, Japan
| | - Akihiko Tsuchida
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Daisuke Eriguchi
- Department of Thoracic Surgery, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Mizuha Hashiguchi
- Department of Internal Medicine, Kanagawa Prefectural Keiyukai Keiyu Hospital, 3-7-3 Minatomirai, Nishi-ku, Yokohama-shi, Kanagawa, 220-8521, Japan
| | - Makoto Nishino
- Department of Internal Medicine, Kanagawa Prefectural Keiyukai Keiyu Hospital, 3-7-3 Minatomirai, Nishi-ku, Yokohama-shi, Kanagawa, 220-8521, Japan.,Department of Experimental Therapeutics, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Motohide Nishi
- Medidata Solutions K.K, JP Tower 29F 2-7-2, Marunouchi, Chiyoda-ku, Tokyo, 100-7029, Japan
| | - Yumi Inadome
- Medidata Solutions K.K, JP Tower 29F 2-7-2, Marunouchi, Chiyoda-ku, Tokyo, 100-7029, Japan
| | - Tsutomu Yamazaki
- Clinical Research Support Center, The University of Tokyo Hospital, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takahiro Kiuchi
- Department of Heath Communication, School of Public Health, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takuhiro Yamaguchi
- Department of Clinical Trial Data Management, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,Division of Biostatistics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
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19
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Kogure Y, Niwa T, Yoshioka H, Saka H, Hata A, Katakami N, Ozawa Y, Matsuo N, Hoshino T, Wakuda K, Kenmotsu H, Takahashi T, Nosaki K, Takenoyama M, Tajima M, Takahashi K, Ando M, Yamamoto N. P1.01-04 A Phase II Trial of Weekly Nab-Paclitaxel in the Salvage Setting for Advanced Non-Small Cell Lung Cancer: Results of NICE Salvage Study. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Hicks K, Knudson K, Ozawa Y, Schlom J, Gameiro S. Evaluation of the anti-tumour efficacy and immune effects of N-809, a novel IL-15 superagonist/anti-PD-L1 bispecific agent. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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21
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Maki H, Yamanaka-Okumura H, Katayama T, Nakagawa E, Nakashima E, Ozawa Y, Irikura Y, Kurata N, Amemiya F. SUN-PO061: Evaluation of Carnitine Fraction During Long-Term Late Evening Snack Administration in Cirrhotic Patients. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32695-0] [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: 10/26/2022]
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22
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Uzawa A, Kanai T, Oda F, Ozawa Y, Yasuda M, Kawaguchi N, Himuro K, Yoshino I, Kuwabara S. Frequency and features of myasthenia gravis developing after thymectomy. Eur J Neurol 2019; 27:175-180. [PMID: 31347231 DOI: 10.1111/ene.14052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 03/29/2019] [Accepted: 07/23/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE Thymectomy is an effective treatment for myasthenia gravis (MG) with anti-acetylcholine receptor (AChR) antibodies. We rarely encounter patients who develop MG after surgery for thymic tumors. This study aimed to investigate the characteristics and frequency of post-thymectomy onset (PostTx) MG. METHODS We reviewed the clinical information of thymoma-associated MG in 158 patients. Of these, 18 (11%) patients with PostTx MG were identified. RESULTS The presence of anti-AChR antibodies (82%) and electrophysiological abnormalities (50%) was confirmed before thymectomy in patients with PostTx MG. The clinical characteristics of PostTx MG were similar to those of pre-thymectomy onset (PreTx) MG. In PostTx MG, the duration between thymectomy and MG onset were distributed as < 6 months (early-onset PostTx MG) and ≥ 6 months (late-onset PostTx MG). Notably, some patients with late-onset PostTx MG were associated with thymoma relapse. CONCLUSION Our results suggest that approximately 11% of patients with thymoma-associated MG were PostTx MG and pre-surgical assessment of anti-AChR antibody titer or electrophysiological testing may predict PostTx MG development. However, no difference in clinical manifestation and prognosis was observed between PreTx MG and PostTx MG.
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Affiliation(s)
- A Uzawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - T Kanai
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - F Oda
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Ozawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - M Yasuda
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - N Kawaguchi
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Neurology, Neurology Chiba Clinic, Chiba, Japan
| | - K Himuro
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - I Yoshino
- Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
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23
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Nishida Y, Takahashi YK, Kanai T, Nose Y, Ishibashi S, Sanjo N, Uzawa A, Oda F, Ozawa Y, Kuwabara S, Noguchi E, Suzuki S, Nakahara J, Suzuki N, Ogawa T, Yokoyama K, Hattori N, Konno S, Fujioka T, Kawaguchi N, Hatanaka Y, Sonoo M, Kaneko J, Ogino M, Nishiyama K, Nomura K, Yokota T. Safety of tapering tacrolimus dose in patients with well-controlled anti-acetylcholine receptor antibody-positive myasthenia gravis. Eur J Neurol 2019; 27:100-104. [PMID: 31309642 DOI: 10.1111/ene.14039] [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: 04/01/2019] [Accepted: 07/10/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND PURPOSE Tapering immunosuppressants is desirable in patients with well-controlled myasthenia gravis (MG). However, the association between tapering of calcineurin inhibitor dosage and reduction-associated exacerbation is not known. The aim of this study was to clarify the frequency of reduction-associated exacerbation when tacrolimus is tapered in stable patients with anti-acetylcholine receptor antibody-positive MG, and to determine the factors that predict exacerbations. METHODS We retrospectively analyzed 115 patients in whom tacrolimus dosage was tapered. The reduction-associated exacerbation was defined as the appearance or worsening of one or more MG symptoms <3 months after the reduction. RESULTS Tacrolimus dosage was successfully tapered in 110 patients (96%) without any exacerbation. Five patients (4%) experienced an exacerbation, but symptoms were reversed in all patients when the tacrolimus dose was increased to the previous maintenance level. No patient developed an MG crisis. The age at onset was significantly earlier (30 vs. 56 years, P = 0.025) and the reduction in dosage was significantly larger (2.0 vs. 1.0 mg/day, P = 0.002) in patients with reduction-associated exacerbation than in those without exacerbation. The cut-off values determined in a receiver-operating characteristic curve analysis were 52 years (sensitivity, 57%; specificity, 100%) for the age at onset and 1.5 mg (sensitivity, 80%; specificity, 100%) for the dose reduction. CONCLUSION Tapering of tacrolimus was possible in most patients with well-controlled anti-acetylcholine receptor antibody-positive MG. Early age at onset and a large reduction from maintenance dosage were associated with exacerbation. Reductions ≤1.5 mg/day from the maintenance dosage should be considered for patients with late-onset disease.
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Affiliation(s)
- Y Nishida
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y K Takahashi
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Kanai
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Nose
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Ishibashi
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - N Sanjo
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Uzawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - F Oda
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Ozawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - E Noguchi
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - S Suzuki
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - J Nakahara
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - N Suzuki
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - T Ogawa
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - K Yokoyama
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - N Hattori
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - S Konno
- Department of Neurology, Toho University Ohashi Medical Center, Tokyo, Japan
| | - T Fujioka
- Department of Neurology, Toho University Ohashi Medical Center, Tokyo, Japan
| | | | - Y Hatanaka
- Department of Neurology, Teikyo University School of Medicine, Tokyo, Japan
| | - M Sonoo
- Department of Neurology, Teikyo University School of Medicine, Tokyo, Japan
| | - J Kaneko
- Department of Neurology, Kitasato University School of Medicine, Kanagawa, Japan
| | - M Ogino
- School of Medicine, Center for Medical Education, International University of Health and Welfare, Chiba, Japan
| | - K Nishiyama
- Department of Neurology, Kitasato University School of Medicine, Kanagawa, Japan
| | - K Nomura
- Department of Neurology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - T Yokota
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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24
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Ogura M, Ohmachi K, Suzuki R, Atsuta Y, Ito T, Ohyashiki K, Yano S, Hidaka M, Ando K, Fukuhara N, Morishita Y, Suzuki T, Tsukasaki K, Kobayashi N, Tsukamoto K, Ozawa Y, Yamamoto K, Hotta T, Kinoshita T. A PHASE II STUDY OF THP (PIRARUBICIN)-COP THERAPY IN PATIENTS WITH NEWLY DIAGNOSED ADVANCED PTCL: THP-3 STUDY OF JAPAN HEMATOPOIETIC MALIGNANCY CLINICAL STUDY GROUP. Hematol Oncol 2019. [DOI: 10.1002/hon.147_2631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Ogura
- Hematology and Oncology/Hematology and Oncology; Kasugai Municipal Hospital/Nagoya Daini Red Cross Hospital; Kasugai/Nagoya Japan
| | - K. Ohmachi
- Hematology and Oncology; Tokai University School of Medicine; Isehara Japan
| | - R. Suzuki
- Oncology and Hematology; Shimane University Hospital; Izumo Japan
| | - Y. Atsuta
- Data Center; Japanese Data Center for Hematopoietic Cell Transplantation; Nagoya Japan
| | - T. Ito
- Hematology and Oncology; Anjyo Kosei Hospital; Anjo Japan
| | - K. Ohyashiki
- Hematology; Tokyo Medical University; Tokyo Japan
| | - S. Yano
- Clinical Oncology and Hematology; Jikei University School of Medicine; Tokyo Japan
| | - M. Hidaka
- Hematology; National Hospital Organization; Kumamoto Japan
| | - K. Ando
- Hematology and Oncology; Tokai University School of Medicine; Isehara Japan
| | - N. Fukuhara
- Hematology and Rheumatology; Tohoku University Hospital; Sendai Japan
| | - Y. Morishita
- Hematology and Oncology; Konan Kosei Hospital; Konan Japan
| | - T. Suzuki
- Hematology; Shiga Medical Center for Adults; Moriyama Japan
| | - K. Tsukasaki
- Hematology; Nagasaki University Hospital; Nagasaki Japan
| | - N. Kobayashi
- Hematology; Sapporo Hokuyu Hospital; Sapporo Japan
| | - K. Tsukamoto
- Medicine and Clinical Science; Gunma University Graduate School of Medicine; Maebashi Japan
| | - Y. Ozawa
- Hematology; Japanese Red Cross Nagoya First Hospital; Nagoya Japan
| | - K. Yamamoto
- Hematology and Cell Therapy; Aichi Cancer Center; Nagoya Japan
| | - T. Hotta
- President; Nagoya Medical Center; Nagoya Japan
| | - T. Kinoshita
- Hematology and Cell Therapy; Aichi Cancer Center; Nagoya Japan
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25
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Edo N, Fukasawa Y, Sakamoto M, Uchino T, Ozawa Y, Honda T, Morita K, Uno K, Fukushima R, Seki N, Okinaga H, Tsukamoto K, Ishikawa T. MON-348 Isolated ACTH Deficiency after Administrating Immune Checkpoint Inhibitors: Report of Three Cases and Review of Literature. J Endocr Soc 2019. [PMCID: PMC6550579 DOI: 10.1210/js.2019-mon-348] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
[Introduction] Immune checkpoint inhibitors (ICIs) are widely used for the treatment of several malignancies. Despite their effectiveness, they may cause immune-related adverse effects on endocrine organs. Here we describe three cases of isolated ACTH deficiency (IAD) that has occurred after ICI therapy. [Case presentation] Case 1: An 80-year-old female patient with advanced melanoma received nivolumab (NIVO) (3 mg/kg intravenously (IV) every two weeks) for 16 weeks, followed by ipilimumab (3 mg/kg IV every three weeks). After the third injection of ipilimumab, she was alert but complained of general fatigue and anorexia. Her laboratory tests revealed hyponatremia (Na 126 mEq/l), hypoglycemia (Glu 65 mg/dl), low ACTH (ACTH <2.1 pg/ml), hypocortisolemia (cortisol (F) 3.6 µg/dl), and inflammation (white blood cell (WBC) 9,000/µl and C-reactive protein 12.87 mg/dl). Case 2: A 52-year-old diabetic male patient on sulfonylurea for the past two years was given 13 courses of NIVO (3 mg/kg IV every two weeks) for the treatment of recurrent lung cancer but could not proceed with the 14th treatment because of general malaise, appetite loss, and slight fever (37ºC). About three weeks after the 13th injection, he went into hypoglycemic coma (Glu 32 mg/dl) and received intravenous glucose. On admission, his Glasgow Coma Scale score was 14 (E4V4M6). Laboratory tests showed hyponatremia (Na 133 mEq/l), low ACTH (ACTH <2.1 pg/ml), and hypocortisolemia (F 0.2 µg/dl), but no leukocytosis (WBC 6,000/µl). Case 3: A 67-year-old male patient received NIVO (3 mg/kg IV every two weeks) as third-line therapy for advanced gastric cancer. After the seventh course of treatment, he complained of general fatigue, anorexia, joint pain, and palpitations. His blood laboratory test was unremarkable with normal serum sodium (Na 140 mEq/l). Six days later, he returned due to persistent symptoms. Laboratory investigation revealed hyponatremia (Na 135 mEq/l), normoglycemia (Glu 88 mg/dl), low ACTH (2.7 pg/ml), and hypocortisolemia (F 0.8 µg/dl), but no inflammation (WBC 3,200/µl). In all three cases, magnetic resonance imaging showed no abnormalities and endocrinological tests confirmed the clinical diagnosis of IAD. All of them were discharged on a physiological replacement dose of hydrocortisone. [Discussion] A recent report suggested that hyponatremia can be an early manifestation of ICI-induced IAD. Indeed, in Cases 1 and 2, adrenal insufficiency was suspected due to hyponatremia and hypoglycemia, although in Case 2, sulfonylurea presumably also contributed to the development of hypoglycemia. In Case 3, however, serum sodium and glucose levels were normal when he initially became symptomatic. This case illustrates the importance of suspecting IAD in ICI-treated patients who present with non-specific symptoms, such as malaise, even in the absence of hyponatremia or hypoglycemia.
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Affiliation(s)
- Naoki Edo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
| | - Yoko Fukasawa
- Department of Medical Oncology, Teikyo University School of Medicine, Tokyo, , Japan
| | - Miki Sakamoto
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
| | - Takuya Uchino
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
| | - Yuki Ozawa
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
| | - Takeshi Honda
- Department of Medical Oncology, Teikyo University School of Medicine, Tokyo, , Japan
| | - Koji Morita
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
| | - Kenji Uno
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
| | - Ryoji Fukushima
- Department of Surgery, Teikyo University School of Medicine, Tokyo, , Japan
| | - Nobuhiko Seki
- Department of Medical Oncology, Teikyo University School of Medicine, Tokyo, , Japan
| | - Hiroko Okinaga
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
| | - Kazuhisa Tsukamoto
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
| | - Toshio Ishikawa
- Dept Internal Medicine, Division of Endocrinology and Metabolism, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, , Japan
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Niiya A, Murakami K, Kobayashi R, Toyofuku K, Nishimura E, Kato M, Ozawa Y, Shinjo H, Miyaura K, Morota M, Serizawa T, Ito Y, Imai A, Kagami Y. PO-0751 Neutrophil lymphocyte ratio and Platelet lymphocyte ratio as a prognostic factor in brain metastases. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31171-5] [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: 11/26/2022]
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Miyaura K, Fujii T, Kubo T, Shinjoh H, Kato M, Toyofuku K, Niiya A, Kobayashi R, Ozawa Y, Murakami K, Morota M, Ito Y, Imai A, Kagami Y. EP-2118 Effects of interfraction uncertainty with Strut Adjusted Volume Implant applicator. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32538-1] [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: 10/26/2022]
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Maki H, Yamanaka-Okumura H, Katayama T, Nakagawa E, Nakashima E, Ozawa Y, Hosoda A, Kurata N, Amemiya F. Long-term use of late evening snack with branched chain amino acids improve fisher ratio in patients with liver cirrhosis. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1281] [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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Fujishima F, Taniyama Y, Nakamura Y, Okamoto H, Ozawa Y, Ito K, Ishida H, Konno-Kumagai T, Kasajima A, Taniuchi S, Watanabe M, Kamei T, Sasano H. Residual carcinoma cells after chemoradiotherapy for esophageal squamous cell carcinoma patients: striving toward appropriate judgment of biopsy. Dis Esophagus 2018; 31:4807355. [PMID: 29346536 DOI: 10.1093/dote/dox141] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 06/14/2017] [Indexed: 12/11/2022]
Abstract
In esophageal squamous cell carcinoma (ESCC) patients who are treated with chemoradiotherapy (CRT), identification of the presence or absence of residual or recurrent carcinoma is usually pivotal in their clinical management. In addition, the extent of carcinoma invasion into the esophageal wall could determine the clinical outcome of these patients following CRT. Therefore, in this study, we evaluated the response to CRT both macroscopically and histologically in a consecutive series of 42 ESCC patients receiving neoadjuvant chemoradiotherapy following curative esophageal resection at Tohoku University Hospital between August 2011 and December 2012. The histological grading of tumor regression was as follows: grade 3, markedly effective (no viable residual tumor cells); grade 2, moderately effective (residual tumor cells in less than one-third of the tumor); grade 1, slightly effective (1b, residual tumor cells in one-third to two-thirds of the tumor; 1a, residual tumor cells in more than two-thirds of the tumor); and grade 0, ineffective. In this study, we selected grade 2 and 1b cases because they might show a complete response with definitive CRT. We evaluated the presence of any residual in situ lesions and tumor depth in detail. The grading of tumor regression in primary sites was as follows: grade 3 (7 cases), grade 2 (16 cases), grade 1b (13 cases), and grade 1a (6 cases). The concordance rate between macroscopic and histopathological evaluation on the depth of the tumor was 40% (17/42). Among 29 cases (grade 2 and grade 1b), intraepithelial lesions were not detected in 17 cases, and tumor nests were not detected in the lamina propria mucosae in 9 cases. The results of this study highlight the difficulties of detecting residual carcinoma cells using conventional endoscopic biopsy in patients who have received CRT. Therefore, when residual cancer is clinically suspected in patients who have received CRT, the biopsy specimen should be obtained from the deep layer of the esophagus whenever possible. Additionally, close follow-up is required using positron emission tomography/computed tomography, endoscopy, and other radiological evaluations.
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Affiliation(s)
| | - Y Taniyama
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine
| | - Y Nakamura
- Division of Pathology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University
| | - H Okamoto
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine
| | - Y Ozawa
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine
| | - K Ito
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine
| | - H Ishida
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine
| | - T Konno-Kumagai
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine
| | | | - S Taniuchi
- Department of Pathology, Tohoku University Hospital, Sendai, Japan
| | - M Watanabe
- Department of Pathology, Tohoku University Hospital, Sendai, Japan
| | - T Kamei
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine
| | - H Sasano
- Department of Pathology.,Department of Pathology, Tohoku University Hospital, Sendai, Japan
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Miyaji T, Kawaguchi T, Azuma K, Suzuki S, Sano Y, Akatsu M, Torii A, Kamimura T, Ozawa Y, Tsuchida A, Eriguchi D, Haraguchi M, Nishino M, Tokuda Y, Nishi Y, Nishi M, Takeya R, Inadome Y, Yamazaki T, Yamaguchi T. Feasibility trial of collecting patient-generated health data using a wearable device and electronic patient-reported outcomes in cancer patients. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.e18725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Tempei Miyaji
- Department of Clinical Trial Data Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takashi Kawaguchi
- Department of Practical Pharmacy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Kanako Azuma
- Department of Pharmacy, Tokyo Medical University Hospital, Tokyo, Japan
| | - Shinya Suzuki
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital, Kanagawa, Japan
| | - Yoko Sano
- Department of Pharmacy, Tokyo Medical University Hospital, Tokyo, Japan
| | - Moe Akatsu
- Department of Pharmacy, Tokyo Medical University Hospital, Tokyo, Japan
| | - Ayako Torii
- Department of Pharmacy, Tokyo Medical University Hospital, Tokyo, Japan
| | - Tadamasa Kamimura
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital, Kanagawa, Japan
| | - Yuki Ozawa
- Department of Pharmacy, Kanagawa Prefectural Keiyukai Keiyu Hospital, Kanagawa, Japan
| | - Akihiko Tsuchida
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University Hospital, Tokyo, Japan
| | - Daisuke Eriguchi
- Department of General Thoracic Surgery, Tokyo Medical University Hospital, Tokyo, Japan
| | - Mizuha Haraguchi
- Department of Internal Medicine, Kanagawa Prefectural Keiyukai Keiyu Hospital, Kanagawa, Japan
| | - Makoto Nishino
- Department of Internal Medicine, Kanagawa Prefectural Keiyukai Keiyu Hospital, Kanagawa, Japan
| | - Yoshiki Tokuda
- Department of Practical Pharmacy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Yoshiko Nishi
- Department of Practical Pharmacy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | | | | | | | - Tsutomu Yamazaki
- Clinical Research Support Center, The University of Tokyo Hospital, The University of Tokyo, Tokyo, Japan
| | - Takuhiro Yamaguchi
- Division of Biostatistics, Tohoku University Graduate School of Medicine, Miyagi, Japan
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Miyaura K, Shinjoh H, Kubo T, Niiya A, Kobayashi R, Kato M, Ozawa Y, Okabe N, Murakami K, Morota M, Kagami Y. EP-2212: Investigation of DVH Parameters for Accelerated Partial Breast Irradiation Using SAVI in Japan. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32521-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Ozawa Y, Uzawa A, Kanai T, Oda F, Kawaguchi N, Keiichi H, Kuwabara S. Relationship between clinical features and serum complements levels in anti-ACHR antibody-positive myasthenia gravis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2327] [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: 11/28/2022]
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33
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Oda F, Uzawa A, Kanai T, Ozawa Y, Kawaguchi N, Himuro K, Kuwabara S. Efficacy of thymectomy for older myasthenia gravis patients with involuted thymus. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1851] [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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Kanai T, Uzawa A, Kawaguchi N, Himuro K, Oda F, Ozawa Y, Kuwabara S. Valproic acid ameliorates experimental autoimmune myasthenia gravis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Kawamura K, Kanda J, Fuji S, Murata M, Ikegame K, Yoshioka K, Fukuda T, Ozawa Y, Uchida N, Iwato K, Sakura T, Hidaka M, Hashimoto H, Ichinohe T, Atsuta Y, Kanda Y. Impact of the presence of HLA 1-locus mismatch and the use of low-dose antithymocyte globulin in unrelated bone marrow transplantation. Bone Marrow Transplant 2017; 52:1390-1398. [PMID: 28714944 DOI: 10.1038/bmt.2017.153] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 05/22/2017] [Accepted: 06/09/2017] [Indexed: 12/14/2022]
Abstract
HLA 1-locus-mismatched unrelated donors (1MMUD) have been used in allogeneic hematopoietic stem cell transplantation (allo-HCT) for patients who lack an HLA-matched donor. We retrospectively analyzed 3313 patients with acute leukemia or myelodysplastic syndrome who underwent bone marrow transplantation from an HLA allele-matched unrelated donor (MUD) or 1MMUD between 2009 and 2014. We compared the outcomes of MUD (n=2089) and 1MMUD with antithymocyte globulin (ATG) (1MM-ATG(+); n=109) with those of 1MMUD without ATG (1MM-ATG(-); n=1115). The median total dose of ATG (thymoglobulin) was 2.5 mg/kg (range 1.0-11.0 mg/kg) in the 1MM-ATG(+) group. The rates of grade III-IV acute GvHD, non-relapse mortality (NRM) and overall mortality were significantly lower in the MUD group than in the 1MM-ATG(-) group (hazard ratio (HR) 0.77, P=0.016; HR 0.74; P<0.001; and HR 0.87, P=0.020, respectively). Likewise, the rates of grade III-IV acute GVHD, NRM and overall mortality were significantly lower in the 1MM-ATG(+) group than in the 1MM-ATG(-) group (HR 0.42, P=0.035; HR 0.35, P<0.001; and HR 0.71, P=0.042, respectively). The outcome of allo-HCT from 1MM-ATG(-) was inferior to that of allo-HCT from MUD even in the recent cohort. However, the negative impact of 1MMUD disappeared with the use of low-dose ATG without increasing the risk of relapse.
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Affiliation(s)
- K Kawamura
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - J Kanda
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - S Fuji
- Department of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan
| | - M Murata
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Ikegame
- Division of Hematology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - K Yoshioka
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - T Fukuda
- Department of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan
| | - Y Ozawa
- Department of Hematology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - N Uchida
- Department of Hematology, Toranomon Hospital, Tokyo, Japan
| | - K Iwato
- Department of Blood Transfusion, Hiroshima Red Cross and Atomic Bomb Survivors Hospital, Hiroshima, Japan
| | - T Sakura
- Leukemia Research Center, Saiseikai Maebashi Hospital, Gunma, Japan
| | - M Hidaka
- Department of Hematology, National Hospital Organization Kumamoto Medical Center, Kumamoto, Japan
| | - H Hashimoto
- Department of Hematology/Division of Stem Cell Transplantation, Kobe General Hospital/Institute of Biomedical Research and Innovation, Kobe, Japan
| | - T Ichinohe
- Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Y Atsuta
- Japanese Data Center for Hematopoietic Cell Transplantation, Nagoya, Japan.,Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Kanda
- Division of Hematology, Saitama Medical Center, Jichi Medical University, Saitama, Japan.,Division of Hematology, Department of Medicine, Jichi Medical University, Shimotsuke, Japan
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Yokohata E, Kuwatsuka Y, Ohashi H, Terakura S, Kawashima N, Seto A, Kurahashi S, Ozawa Y, Goto T, Imahashi N, Nishida T, Miyao K, Sakemura R, Kato T, Sawa M, Kohno A, Sao H, Iida H, Kiyoi H, Naoe T, Miyamura K, Murata M. Impact of T-cell chimerism on relapse after cord blood transplantation for hematological malignancies: Nagoya Blood and Marrow Transplantation Group study. Bone Marrow Transplant 2017; 52:612-614. [PMID: 28067879 DOI: 10.1038/bmt.2016.323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- E Yokohata
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Y Kuwatsuka
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - H Ohashi
- Department of Hematology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan.,Division of Hematology, Toyota Memorial Hospital, Toyota, Japan
| | - S Terakura
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Kawashima
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - A Seto
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan.,Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kurahashi
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Y Ozawa
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - T Goto
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Imahashi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Nishida
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Miyao
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - R Sakemura
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - T Kato
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - M Sawa
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - A Kohno
- Department of Hematology and Oncology, JA Aichi Konan Kosei Hospital, Konan, Japan
| | - H Sao
- Department of Hematology, Meitetsu Hospital, Nagoya, Japan
| | - H Iida
- Department of Hematology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - H Kiyoi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Naoe
- Department of Hematology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan.,Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Miyamura
- Department of Hematology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - M Murata
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Nakamura Y, Kihara Y, Iwamoto H, Ozawa Y, Sano T, Tomita K, Yokoyama T, Konno O, Ueno T, Kawachi S. A Novel Assessment of Vascular Regions Using an Intraoperative Near-Infrared Fluorescence. Transplant Proc 2017; 48:710-5. [PMID: 27234719 DOI: 10.1016/j.transproceed.2015.12.115] [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] [Received: 11/30/2015] [Accepted: 12/30/2015] [Indexed: 01/16/2023]
Abstract
INTRODUCTION The risk of complications and transplant renal function increases in multiple arterial renal transplantations compared with single arterial renal transplantations. Even when multiple arteries are involved, with the introduction of laparoscopic nephrectomy, I mainly choose the left side kidney. Therefore, the number of renal artery reconstructions is increasing, and simultaneous imaging of arterial rebuilding during the donor nephrectomy is important. MATERIAL Between 2006 and 2015, we performed 132 living donor kidney transplantations at our center and analyzed 32 cases that were diagnosed pre- and intraoperatively. METHOD We compared the single renal artery (SRA) and multiple renal arteries (MRA) groups and analyzed the number of renal arteries, reconstruction methods, donor and recipient ages, sex, total ischemic times, and 1-month serum creatinine values. RESULT In the MRA and SRA groups, the average recipient age was 52.3 and 47.0 years, respectively, while the average donor age was 52.9 and 53.1 years, respectively. In SRA and MRA groups, total ischemic time (TIT) was 96.1 and 143.6 min (P < .01). Serum creatinine level 1 month post-transplantation was 1.54 and 1.25, respectively (P < .001). Here we experienced 12 cases of living renal donor nephrectomy with multiple vessels in which the vascular supply territory was first assessed in April 2013 using an intraoperative near-infrared fluorescence camera system. In addition, regarding TIT, it is possible to shorten surgery by using individual anastomosis and ligation. CONCLUSION By managing multiple donors; arteries by nephrectomy, it is possible to improve kidney transplantation results.
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Affiliation(s)
- Y Nakamura
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan.
| | - Y Kihara
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - H Iwamoto
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - Y Ozawa
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - T Sano
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - K Tomita
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - T Yokoyama
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - O Konno
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - T Ueno
- Division of Acute and Critical Care Medicine, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - S Kawachi
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
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Abstract
Periodontal-ligament-associated protein-1 ( PLAP-1) is preferentially expressed in the periodontal ligament (PDL) and encodes a novel small leucine-rich repeat proteoglycan protein. PLAP-1 expression was induced during the course of cytodifferentiation of PDL cells into mineralized-tissue-forming cells in vitro, suggesting the possible involvement of PLAP-1 in the mineralization process of PDL cells. In this study, we hypothesized that PLAP-1 expression is regulated by mineralization-related cytokines in PDL cells. PLAP-1 expression was clearly down-regulated when the cytodifferentiation of PDL cells was reversibly inhibited by fibroblast growth factor-2 (FGF-2). In contrast, bone morphogenetic protein-2 (BMP-2) enhanced PLAP-1 expression. Up-regulation of PLAP-1 expression by BMP-2 was confirmed at the protein level when PDL cells were immunostained with anti-PLAP-1 polyclonal antibody. These results revealed the cytokine-mediated regulatory mechanisms of PLAP-1 expression and suggested that PLAP-1 expression may be associated with the process of cytodifferentiation of PDL cells.
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Affiliation(s)
- S Yamada
- Department of Periodontology, Osaka University Graduate School of Dentistry, Suita, Japan
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Kanai T, Uzawa A, Kawaguchi N, Himuro K, Oda F, Ozawa Y, Kuwabara S. Adequate tacrolimus concentration for myasthenia gravis treatment. Eur J Neurol 2016; 24:270-275. [DOI: 10.1111/ene.13189] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 09/16/2016] [Indexed: 01/03/2023]
Affiliation(s)
- T. Kanai
- Department of Neurology; Graduate School of Medicine; Chiba University; Chiba
| | - A. Uzawa
- Department of Neurology; Graduate School of Medicine; Chiba University; Chiba
| | - N. Kawaguchi
- Department of Neurology; Graduate School of Medicine; Chiba University; Chiba
- Department of Neurology; Neurology Chiba Clinic; Chiba
| | - K. Himuro
- Department of Neurology; Graduate School of Medicine; Chiba University; Chiba
- Department of Neurology; JR Tokyo General Hospital; Shibuya-ku Japan
| | - F. Oda
- Department of Neurology; Graduate School of Medicine; Chiba University; Chiba
| | - Y. Ozawa
- Department of Neurology; Graduate School of Medicine; Chiba University; Chiba
| | - S. Kuwabara
- Department of Neurology; Graduate School of Medicine; Chiba University; Chiba
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Kimura T, Adachi Y, Matsuki M, Yamaguchi A, Ozawa Y, Okamoto K, Mitsuhashi K, Hoshi T, Tohyama O, Tai K, Ogo M, Matsui J, Funahashi Y. The antitumor activity of lenvatinib (LEN) in combination with everolimus (EVE) in human renal cell carcinoma (RCC) xenograft models is dependent on VEGFR and FGFR signaling. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw362.06] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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Niiya A, Murakami K, Kobayashi R, Kato M, Okabe N, Obinata M, Ozawa Y, Morota M, Shinjo H, Kagami Y. Identification of Prognostic Index for Brain Metastases in Japanese Patients. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.870] [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: 10/20/2022]
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Koyama D, Ito M, Yokohata E, Watakabe K, Onodera K, Goto T, Seto A, Watanabe K, Doisaki M, Ozawa Y, Yamaguchi T, Miyamura K. Autoimmune-like hepatitis after allogeneic hematopoietic stem cell transplantation: humoral hepatic GvHD. Bone Marrow Transplant 2016; 52:151-153. [DOI: 10.1038/bmt.2016.202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Ozawa Y, Kawashima M, Inoue S, Inagaki E, Suzuki A, Ooe E, Kobayashi S, Tsubota K. Bilberry extract supplementation for preventing eye fatigue in video display terminal workers. J Nutr Health Aging 2015; 19:548-54. [PMID: 25923485 DOI: 10.1007/s12603-014-0573-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To examine the effect of a dietary supplement containing bilberry extract (BE) on eye fatigue induced by acute video display terminal (VDT) loads. DESIGN AND SETTING A prospective, randomized, double-blind, placebo-controlled study was performed from August 2012 to February 2013 in the Medical Corporation Jico-kai Yagi Hospital, and the Shinyokohama Shinoharaguchi Orthopedic Surgery and Dermatology Clinic, in Japan. PARTICIPANTS Two hundred eighty-one office workers aged 20-40 years that used VDTs were screened by critical flicker fusion (CFF) and near point accommodation (NPA). INTERVENTION The participants were randomized to either a BE (480 mg/day) or placebo (vehicle) group, and took allocated capsule, daily, for 8 weeks. MEASUREMENTS The CFF, NPA, contrast visual acuity, functional visual acuity, keratoconjunctival epithelial damage, and fluorescein tear film break-up time were examined, and 18 subjective symptoms of eye fatigue were evaluated by questionnaire. Adverse events were reported via medical interviews. Data were collected both before and after VDT load at baseline, and 4, and 8 weeks after daily supplementation with either BE or placebo. RESULTS Of 281 participants screened, 88 having relatively lower levels of CFF and NPA were enrolled in the study. Of these, 37 control and 43 BE group subjects completed the study. The VDT load-induced reduction in CFF was alleviated after 8 weeks of BE supplementation (95% confidence interval, 0.10-1.60; p=0.023), in contrast to placebo supplementation, while NPA variation was not. Of the subjective symptoms of eye fatigue, VDT load-induced ocular fatigue sensation, ocular pain, eye heaviness, uncomfortable sensation, and foreign body sensation were mitigated more in the BE group than in the control group, at week 8 (p<0.05). There were no severe adverse events in either group. CONCLUSIONS BE supplementation improved some of the objective and subjective parameters of eye fatigue induced by VDT loads.
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Affiliation(s)
- Y Ozawa
- Kazuo Tsubota M.D., Ph.D. Professor and Chairman, Department of Ophthalmology, Keio University School of Medicine; 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan. Phone: +81-3-3353-1211, Fax: +81-3-3359-8302,E-mail:
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Ozawa Y, Kobayashi S, Hara M, Shibamoto Y. Morphological differences between schwannomas and ganglioneuromas in the mediastinum: utility of the craniocaudal length to major axis ratio. Br J Radiol 2014; 87:20130777. [PMID: 24646161 DOI: 10.1259/bjr.20130777] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To evaluate the diagnostic value of the craniocaudal length (CC) to major axis ratio (CC/M R) for differentiating between schwannoma and ganglioneuroma in the mediastinum on CT/MRI. METHODS 22 schwannomas (Group A: 7 schwannomas in the posterior mediastinum; Group B, 15 schwannomas located in the chest wall or regions of the mediastinum other than the posterior mediastinum) and 14 ganglioneuromas in the posterior mediastinum (Group C) were evaluated. For each tumour, the major and minor axes on the largest transaxial image and the CC were measured on CT/MRI. The CC/M R was calculated, and differences among the three groups were analysed. RESULTS The major axis, minor axis and CC measurements and CC/M R ranged from 23 to 52mm (mean, 37 mm), 15 to 38mm (28 mm), 25 to 62mm (42mm) and 0.66 to 1.4mm (1.1 mm), respectively, in Group A; from 18 to 97mm (37 mm), 10 to 71mm (28 mm), 18 to 80mm (35mm) and 0.59 to 1.3mm (0.95 mm), respectively, in Group B; and from 20 to 70mm (49 mm), 15 to 60mm (32 mm), 30 to 110mm (74mm) and 1.0 to 2.6mm (1.5 mm), respectively, in Group C. The mean CC/M R of Group C was significantly higher than those of the other two groups (p,0.005). There was no difference between the mean CC/M R of Groups A and B. CONCLUSION Ganglioneuromas display higher mean CC/M R than schwannomas. The CC/M R is a useful index for differentiating between these neurogenic tumours. ADVANCES IN KNOWLEDGE The CC/M R is a practical and effective index for differentiating between ganglioneuromas and schwannomas.
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Ozawa Y, Okamoto K, Adachi Y, Asano M, Tabata K, Funahashi Y, Matsui J. 36 Suppression of metastasis and improvement of drug distribution by eribulin mesylate. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70162-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yoshida T, Ozawa Y, Kimura T, Sato Y, Kuznetsov G, Xu S, Uesugi M, Agoulnik S, Taylor N, Funahashi Y, Matsui J. Eribulin mesilate suppresses experimental metastasis of breast cancer cells by reversing phenotype from epithelial-mesenchymal transition (EMT) to mesenchymal-epithelial transition (MET) states. Br J Cancer 2014; 110:1497-505. [PMID: 24569463 PMCID: PMC3960630 DOI: 10.1038/bjc.2014.80] [Citation(s) in RCA: 242] [Impact Index Per Article: 24.2] [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: 09/04/2013] [Revised: 01/15/2013] [Accepted: 01/20/2014] [Indexed: 01/20/2023] Open
Abstract
Background: Eribulin mesilate (eribulin), a non-taxane microtubule dynamics inhibitor, has shown trends towards greater overall survival (OS) compared with progression-free survival in late-stage metastatic breast cancer patients in the clinic. This finding suggests that eribulin may have additional, previously unrecognised antitumour mechanisms beyond its established antimitotic activity. To investigate this possibility, eribulin's effects on the balance between epithelial–mesenchymal transition (EMT) and mesenchymal–epithelial transition (MET) in human breast cancer cells were investigated. Methods: Triple negative breast cancer (TNBC) cells, which are oestrogen receptor (ER−)/progesterone receptor (PR−)/human epithelial growth receptor 2 (HER2−) and have a mesenchymal phenotype, were treated with eribulin for 7 days, followed by measurement of EMT-related gene and protein expression changes in the surviving cells by quantitative real-time PCR (qPCR) and immunoblot, respectively. In addition, proliferation, migration, and invasion assays were also conducted in eribulin-treated cells. To investigate the effects of eribulin on TGF-β/Smad signalling, the phosphorylation status of Smad proteins was analysed. In vivo, the EMT/MET status of TNBC xenografts in mice treated with eribulin was examined by qPCR, immunoblot, and immunohistochemical analysis. Finally, an experimental lung metastasis model was utilised to gauge the metastatic activity of eribulin-treated TNBC in the in vivo setting. Results: Treatment of TNBC cells with eribulin in vitro led to morphological changes consistent with transition from a mesenchymal to an epithelial phenotype. Expression analyses of EMT markers showed that eribulin treatment led to decreased expression of several mesenchymal marker genes, together with increased expression of several epithelial markers. In the TGF-β induced EMT model, eribulin treatment reversed EMT, coincident with inhibition of Smad2 and Smad3 phosphorylation. Consistent with these changes, TNBC cells treated with eribulin for 7 days showed decreased capacity for in vitro migration and invasiveness. In in vivo xenograft models, eribulin treatment reversed EMT and induced MET as assessed by qPCR, immunoblot, and immunohistochemical analyses of epithelial and mesenchymal marker proteins. Finally, surviving TNBC cells pretreated in vitro with eribulin for 7 days led to decreased numbers of lung metastasis when assessed in an in vivo experimental metastasis model. Conclusions: Eribulin exerted significant effects on EMT/MET-related pathway components in human breast cancer cells in vitro and in vivo, consistent with a phenotypic switch from mesenchymal to epithelial states, and corresponding to observed decreases in migration and invasiveness in vitro as well as experimental metastasis in vivo. These preclinical findings may provide a plausible scientific basis for clinical observations of prolonged OS by suppression of further spread of metastasis in breast cancer patients treated with eribulin.
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Affiliation(s)
- T Yoshida
- Discovery Biology, Oncology Product Creation Unit, Eisai Co., Ltd, Tsukuba, Ibaraki 300-2635, Japan
| | - Y Ozawa
- Discovery Biology, Oncology Product Creation Unit, Eisai Co., Ltd, Tsukuba, Ibaraki 300-2635, Japan
| | - T Kimura
- Biomarkers and Personalized Medicine, Core Function Unit, Eisai Co., Ltd, Tsukuba, Ibaraki 300-2635, Japan
| | - Y Sato
- Biomarkers and Personalized Medicine, Core Function Unit, Eisai Co., Ltd, Tsukuba, Ibaraki 300-2635, Japan
| | - G Kuznetsov
- Biomarkers and Personalized Medicine, Core Function Unit, Eisai Inc., Andover, MA 01810, USA
| | - S Xu
- Biomarkers and Personalized Medicine, Core Function Unit, Eisai Inc., Andover, MA 01810, USA
| | - M Uesugi
- Biomarkers and Personalized Medicine, Core Function Unit, Eisai Co., Ltd, Tsukuba, Ibaraki 300-2635, Japan
| | - S Agoulnik
- Biomarkers and Personalized Medicine, Core Function Unit, Eisai Inc., Andover, MA 01810, USA
| | - N Taylor
- Biomarkers and Personalized Medicine, Core Function Unit, Eisai Inc., Andover, MA 01810, USA
| | - Y Funahashi
- Biomarkers and Personalized Medicine, Core Function Unit, Eisai Inc., Andover, MA 01810, USA
| | - J Matsui
- Discovery Biology, Oncology Product Creation Unit, Eisai Co., Ltd, Tsukuba, Ibaraki 300-2635, Japan
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Mizutani H, Ishihara Y, Izawa A, Fujihara Y, Kobayashi S, Gotou H, Okabe E, Takeda H, Ozawa Y, Kamiya Y, Kamei H, Kikuchi T, Yamamoto G, Mitani A, Nishihara T, Noguchi T. Lipopolysaccharide of Aggregatibacter actinomycetemcomitans up-regulates inflammatory cytokines, prostaglandin E2 synthesis and osteoclast formation in interleukin-1 receptor antagonist-deficient mice. J Periodontal Res 2013; 48:748-56. [PMID: 23586622 DOI: 10.1111/jre.12065] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVE The interleukin (IL)-1 receptor antagonist (Ra) binds to IL-1 receptors and inhibits IL-1 activity. However, it is unclear whether the IL-1Ra plays a protective role in periodontal disease. The purpose of this study was to compare IL-1Ra knockout (KO) and wild-type (WT) mice in regard to proinflammatory cytokine production, osteoclast formation and bone resorption in response to periodontal bacterial lipopolysaccharide (LPS). MATERIAL AND METHODS Peritoneal macrophages (Mφs) were obtained from 13-wk-old IL-1Ra KO and WT mice. Peritoneal Mφs were cultured with or without 10 μg/mL of Aggregatibacter actinomycetemcomitans LPS for 24 h. The levels of IL-1alpha (IL-1α), IL-1beta (IL-1β), tumor necrosis factor-α (TNF-α) and IL-6 were measured in periotoneal Mφs supernatant fluid (PM-SF) using an ELISA. Bone marrow cells were obtained from the mice and stimulated with PM-SF for 9 d, then stained with TRAP. The frequency of TRAP-positive multinucleated giant cell formation was calculated based on a fusion index. PM-SF-stimulated calvarial bone resorption was analyzed using micro-computed tomography, and calvarial histological analysis was performed using hematoxylin and eosin and TRAP staining. The expression of cyclooxygenase-2 (Cox2), prostanoid receptor EP4 (Ep4) and Rank mRNAs in bone marrow cells were measured using real-time quantitative PCR, while prostaglandin E2 (PGE2 ) production was determined by ELISA. RESULTS The levels of IL-1α, IL-1β, TNF-α and IL-6 in IL-1Ra KO mice PM-SF stimulated with A. actinomycetemcomitans LPS were significantly increased by approximately 4- (p < 0.05), 5- (p < 0.05), 1.3- (p < 0.05) and 6- (p < 0.05) fold, respectively, compared with the levels in WT mice. Moreover, osteoclast formation, expression of Rank, Ep4 and Cox2 mRNAs and production of PGE2 were significantly increased by approximately 2- (p < 0.05), 1.6- (p < 0.05), 2.5- (p < 0.05), 1.6- (p < 0.05) and 1.9- (p < 0.05) fold, respectively, in IL-1Ra KO mice stimulated with A. actinomycetemcomitans LPS compared with WT mice. CONCLUSION IL-1Ra regulates IL-1 activity and appears to reduce the levels of other inflammatory cytokines, including TNF-α and IL-6, while it also reduces expression of the EP4 receptor related to prostanoid sensitivity and osteoclast formation. These results suggest that IL-1Ra is an important molecule for inhibition of inflammatory periodontal bone resorption.
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Affiliation(s)
- H Mizutani
- Department of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
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Wakihara M, Kadoma Y, Kumagai N, Mita H, Araki R, Ozawa K, Ozawa Y. Development of nonflammable lithium ion battery using a new all-solid polymer electrolyte. J Solid State Electrochem 2012. [DOI: 10.1007/s10008-012-1643-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Toriumi K, Yamanaka H, Takazaki A, Yamashita D, Mitsumi M, Ozawa Y, Sakata O. Development for X-ray crystal structure analysis of a surface-shallow layer. Acta Crystallogr A 2011. [DOI: 10.1107/s010876731108679x] [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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Ozawa Y, Ishida T, Toriumi K. Photoexcited state crystallography of luminescent hexanuclear d10metal complexes. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311095584] [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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