1
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Okuzono Y, Miyakawa S, Itou T, Sagara M, Iwata M, Ishizuchi K, Sekiguchi K, Motegi H, Oyama M, Warude D, Kikukawa Y, Suzuki S. B-cell immune dysregulation with low soluble CD22 levels in refractory seronegative myasthenia gravis. Front Immunol 2024; 15:1382320. [PMID: 38711503 PMCID: PMC11071663 DOI: 10.3389/fimmu.2024.1382320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/01/2024] [Indexed: 05/08/2024] Open
Abstract
Myasthenia gravis (MG), primarily caused by acetylcholine receptor (AChR) autoantibodies, is a chronic autoimmune disorder causing severe muscle weakness and fatigability. In particular, seronegative MG constitutes 10%-15% of MG cases and presents diagnostic challenges especially in early-onset female patients who often show severe disease and resistance to immunosuppressive therapy. Furthermore, the immunopathology of seronegative MG remains unclear. Thus, in this study, we aimed to elucidate the pathogenic mechanism of seronegative MG using scRNA-seq analysis and plasma proteome analysis; in particular, we investigated the relationship between immune dysregulation status and disease severity in refractory seronegative MG. Employing single-cell RNA-sequencing and plasma proteome analyses, we analyzed peripheral blood samples from 30 women divided into three groups: 10 healthy controls, 10 early-onset AChR-positive MG, and 10 refractory early-onset seronegative MG patients, both before and after intravenous immunoglobulin treatment. The disease severity was evaluated using the MG-Activities of Daily Living (ADL), MG composite (MGC), and revised 15-item MG-Quality of Life (QOL) scales. We observed numerical abnormalities in multiple immune cells, particularly B cells, in patients with refractory seronegative MG, correlating with disease activity. Notably, severe MG cases had fewer regulatory T cells without functional abnormalities. Memory B cells were found to be enriched in peripheral blood cells compared with naïve B cells. Moreover, plasma proteome analysis indicated significantly lower plasma protein levels of soluble CD22, expressed in the lineage of B-cell maturation (including mature B cells and memory B cells), in refractory seronegative MG patients than in healthy donors or patients with AChR-positive MG. Soluble CD22 levels were correlated with disease severity, B-cell frequency, and RNA expression levels of CD22. In summary, this study elucidates the immunopathology of refractory seronegative MG, highlighting immune disorders centered on B cells and diminished soluble CD22 levels. These insights pave the way for novel MG treatment strategies focused on B-cell biology.
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Affiliation(s)
- Yuumi Okuzono
- Oncology Drug Discovery Unit Japan, Research, Takeda Pharmaceutical Company Limited, Kanagawa, Japan
| | - Shuuichi Miyakawa
- Oncology Drug Discovery Unit Japan, Research, Takeda Pharmaceutical Company Limited, Kanagawa, Japan
| | - Tatsuo Itou
- Oncology Drug Discovery Unit Japan, Research, Takeda Pharmaceutical Company Limited, Kanagawa, Japan
| | - Masaki Sagara
- Oncology Drug Discovery Unit Japan, Research, Takeda Pharmaceutical Company Limited, Kanagawa, Japan
| | - Masashi Iwata
- Oncology Drug Discovery Unit Japan, Research, Takeda Pharmaceutical Company Limited, Kanagawa, Japan
| | - Kei Ishizuchi
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - Koji Sekiguchi
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - Haruhiko Motegi
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
- Department of Neurology, The Jikei University School of Medicine, Tokyo, Japan
| | - Munenori Oyama
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - Dnyaneshwar Warude
- Oncology Drug Discovery Unit Japan, Research, Takeda Pharmaceutical Company Limited, Kanagawa, Japan
| | - Yusuke Kikukawa
- Oncology Drug Discovery Unit Japan, Research, Takeda Pharmaceutical Company Limited, Kanagawa, Japan
| | - Shigeaki Suzuki
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
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2
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Dainichi T, Iwata M, Kaku Y. Alopecia areata: What's new in the diagnosis and treatment with JAK inhibitors? J Dermatol 2024; 51:196-209. [PMID: 38087654 DOI: 10.1111/1346-8138.17064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 02/04/2024]
Abstract
Alopecia areata (AA) affects individuals of all ages and is intractable in severe relapsing cases. Dermatologists and other healthcare providers should consider AA in the medical context and prioritize treatment. Several randomized controlled clinical studies on Janus kinase (JAK) inhibitors with different specificities for the treatment of AA are ongoing. These studies have encouraged us to appreciate the importance of a definitive diagnosis and accurate evaluation of AA before and during treatment. Following our previous review article in 2017, here we provide the second part of this two-review series on the recent progress in the multidisciplinary approaches to AA from more than 1800 articles published between July 2016 and December 2022. This review focuses on the evaluation, diagnosis, and treatment of AA. We also provide the latest information on the safety and efficacy of JAK inhibitors for the treatment of AA and describe their mechanisms of action.
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Affiliation(s)
- Teruki Dainichi
- Department of Dermatology, Kagawa University Faculty of Medicine, Miki-cho, Kita-gun, Japan
| | - Masashi Iwata
- Department of Dermatology, Kagawa University Faculty of Medicine, Miki-cho, Kita-gun, Japan
| | - Yo Kaku
- Department of Dermatology, Kagawa University Faculty of Medicine, Miki-cho, Kita-gun, Japan
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
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3
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Maezawa M, Inoue M, Satake R, Wakabayashi W, Oura K, Goto F, Miyasaka K, Hirofuji S, Iwata M, Suzuki T, Tanaka H, Nishida S, Shimizu S, Suzuki A, Iguchi K, Nakamura M. Effect of acid suppressant medications on the laxative action of magnesium preparations in patients with opioid-induced constipation: A pharmacovigilance analysis of the FDA Adverse Event Reporting System. Pharmazie 2023; 78:245-250. [PMID: 38178284 DOI: 10.1691/ph.2023.3624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Objective: Magnesium oxide is widely used for treating opioid-induced constipation, a serious analgesic-associated problem. Opioid analgesic users are often prescribed non-steroidal anti-inflammatory drugs, which are sometimes combined with acid suppressants to prevent gastrointestinal adverse events. Magnesium preparations combined with acid suppressants may diminish magnesium preparations' laxative effect. This study was aimed at evaluating the effect of magnesium preparations combined with acid suppressants on the incidence of opioid-induced constipation by using the Food and Drug Administration Adverse Event Reporting System. Methods: Adverse events were defined per the Medical Dictionary for Regulatory Activities; the term 'constipation (preferred term code: 10010774)' was used for analysis. After adjusting for patient background factors using propensity score matching, acid suppressants' effect on constipation incidence was evaluated in opioid users prescribed magnesium preparations alone as laxatives by using a test for independence. Key Findings: The Food and Drug Administration Adverse Event Reporting System contains 14,475,614 reports for January 2004 to December 2021. Significantly increased constipation incidence was related to magnesium preparations combined with acid suppressants, especially proton pump inhibitors (P < 0.0001, McNemar's test). Conclusion: Magnesium preparations combined with acid suppressants may diminish magnesium preparations' laxative effect; healthcare professionals should pay attention to this issue.
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Affiliation(s)
- M Maezawa
- Laboratory of Drug Informatics, Gifu Pharmaceutical Universit
| | - M Inoue
- Laboratory of Drug Informatics, Gifu Pharmaceutical University
| | - R Satake
- Laboratory of Drug Informatics, Gifu Pharmaceutical University
| | - W Wakabayashi
- Laboratory of Drug Informatics , Gifu Pharmaceutical University
| | - K Oura
- Laboratory of Drug Informatics, Gifu Pharmaceutical University
| | - F Goto
- Laboratory of Drug Informatics, Gics, Gifu Pharmaceutical University
| | - K Miyasaka
- Laboratory of Drug Informatics, Gics, Gifu Pharmaceutical University
| | - S Hirofuji
- Laboratory of Drug Informatics, Gifu Pharmaceutical University
| | - M Iwata
- Laboratory of Drug Informatics, Gifu Pharmaceutical University; Kifune Pharmacy
| | - T Suzuki
- Laboratory of Drug Informatics, Gifu Pharmaceutical University; Gifu Prefectural Government
| | - H Tanaka
- Laboratory of Drug Informatics, Gifu Pharmaceutical University; Chubu Yakuhin Co. Ltd
| | - S Nishida
- Department of Pharmacy, Gifu University Hospital
| | - S Shimizu
- Department of Pharmacy, Gifu University Hospital
| | - A Suzuki
- Department of Pharmacy, Gifu University Hospital
| | - K Iguchi
- Laboratory of Community Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - M Nakamura
- Laboratory of Drug Informatics, Gifu Pharmaceutical University; Corresponding author: Mitsuhiro Nakamura, Laboratory of Drug Informatics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan mnakamura@gifu-pu. ac. jp
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4
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Dainichi T, Iwata M, Kaku Y. Alopecia areata: What's new in the epidemiology, comorbidities, and pathogenesis? J Dermatol Sci 2023; 112:120-127. [PMID: 37833164 DOI: 10.1016/j.jdermsci.2023.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 09/07/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023]
Abstract
BACKGROUND Alopecia areata (AA) is a common, acquired, and nonscarring type of hair loss that affects people of every generation and is intractable in severe and relapsing cases. Patients with AA, especially those with greater scalp involvement, have poor health-related quality-of-life scores. PURPOSE Following our previous review article in the April 2017 issue of the Journal of Dermatological Science, we aim to provide a pair of review articles on recent progress in multidisciplinary approaches to AA. MAIN FINDINGS We found more than 1800 publications on AA from July 2016 to December 2022. CONCLUSIONS In this review, we focused on the latest information on the epidemiology, comorbidities, and pathogenesis of AA.
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Affiliation(s)
- Teruki Dainichi
- Department of Dermatology, Kagawa University Faculty of Medicine, Kagawa, Japan.
| | - Masashi Iwata
- Department of Dermatology, Kagawa University Faculty of Medicine, Kagawa, Japan
| | - Yo Kaku
- Department of Dermatology, Kagawa University Faculty of Medicine, Kagawa, Japan; Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
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5
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Dainichi T, Iwata M. Inflammatory loops in the epithelial-immune microenvironment of the skin and skin appendages in chronic inflammatory diseases. Front Immunol 2023; 14:1274270. [PMID: 37841246 PMCID: PMC10568311 DOI: 10.3389/fimmu.2023.1274270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/05/2023] [Indexed: 10/17/2023] Open
Abstract
The epithelial-immune microenvironment (EIME) of epithelial tissues has five common elements: (1) microbial flora, (2) barrier, (3) epithelial cells, (4) immune cells, and (5) peripheral nerve endings. EIME provides both constant defense and situation-specific protective responses through three-layered mechanisms comprising barriers, innate immunity, and acquired immunity. The skin is one of the largest organs in the host defense system. The interactions between the five EIME elements of the skin protect against external dangers from the environment. This dysregulation can result in the generation of inflammatory loops in chronic inflammatory skin diseases. Here, we propose an understanding of EIME in chronic skin diseases, such as atopic dermatitis, psoriasis, systemic lupus erythematosus, alopecia areata, and acne vulgaris. We discuss the current treatment strategies targeting their inflammatory loops and propose possible therapeutic targets in the future.
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Affiliation(s)
- Teruki Dainichi
- Department of Dermatology, Kagawa University Faculty of Medicine, Kagawa, Japan
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6
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Sukegawa S, Miyazaki R, Matsuki Y, Iwata M, Nakai F, Nakai Y, Miyake M. Endoscopic-assisted Surgical Removal of Infected Interosseous Wires 40 Years After Mandibular Surgery. J Craniofac Surg 2023; Publish Ahead of Print:00001665-990000000-00743. [PMID: 37236613 DOI: 10.1097/scs.0000000000009352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 05/28/2023] Open
Abstract
We demonstrate a highly reliable minimally invasive treatment for removal of residual wire from the mandible. The patient was a 55-year-old Japanese man who was referred to our department for a fistula in his submental area. The patient had undergone open reduction and fixation with wires for mandibular fractures (left parasymphysis, right angle fracture) more than 40 years prior and mandibular tooth extraction and drainage 6 months prior. Minimally invasive endoscopy-assisted wire removal surgery was performed under general anesthesia with good visualization in a narrow surgical field. Bone resection was minimized using an ultrasonic cutting instrument with a wide choice of tip shapes. The use of endoscopy with ultrasonic cutting tools makes it possible to effectively utilize narrow surgical fields with a small skin incision and minimal bone cutting. The advantages and disadvantages of the newer endoscopic systems in oral and maxillofacial surgical units are discussed.
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Affiliation(s)
- Shintaro Sukegawa
- Department of Oral and Maxillofacial Surgery, Kagawa University Faculty of Medicine, Miki, Kagawa Japan
| | - Ryo Miyazaki
- Department of Oral and Maxillofacial Surgery, Kagawa University Faculty of Medicine, Miki, Kagawa Japan
| | - Yusuke Matsuki
- Department of Oral and Maxillofacial Surgery, Kagawa University Faculty of Medicine, Miki, Kagawa Japan
| | - Masashi Iwata
- Department of Dermatology, Kagawa University Faculty of Medicine, Kagawa, Japan
| | - Fumi Nakai
- Department of Oral and Maxillofacial Surgery, Kagawa University Faculty of Medicine, Miki, Kagawa Japan
| | - Yasuhiro Nakai
- Department of Oral and Maxillofacial Surgery, Kagawa University Faculty of Medicine, Miki, Kagawa Japan
| | - Minoru Miyake
- Department of Oral and Maxillofacial Surgery, Kagawa University Faculty of Medicine, Miki, Kagawa Japan
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7
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Nakamizo S, Dutertre CA, Khalilnezhad A, Zhang XM, Lim S, Lum J, Koh G, Foong C, Yong PJA, Tan KJ, Sato R, Tomari K, Yvan-Charvet L, He H, Guttman-Yassky E, Malleret B, Shibuya R, Iwata M, Janela B, Goto T, Lucinda TS, Tang MBY, Theng C, Julia V, Hacini-Rachinel F, Kabashima K, Ginhoux F. Single-cell analysis of human skin identifies CD14+ type 3 dendritic cells co-producing IL1B and IL23A in psoriasis. J Exp Med 2021; 218:212481. [PMID: 34279540 PMCID: PMC8292131 DOI: 10.1084/jem.20202345] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [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: 11/04/2020] [Revised: 04/03/2021] [Accepted: 06/15/2021] [Indexed: 12/27/2022] Open
Abstract
Inflammatory skin diseases including atopic dermatitis (AD) and psoriasis (PSO) are underpinned by dendritic cell (DC)-mediated T cell responses. Currently, the heterogeneous human cutaneous DC population is incompletely characterized, and its contribution to these diseases remains unclear. Here, we performed index-sorted single-cell flow cytometry and RNA sequencing of lesional and nonlesional AD and PSO skin to identify macrophages and all DC subsets, including the newly described mature LAMP3+BIRC3+ DCs enriched in immunoregulatory molecules (mregDC) and CD14+ DC3. By integrating our indexed data with published skin datasets, we generated a myeloid cell universe of DC and macrophage subsets in healthy and diseased skin. Importantly, we found that CD14+ DC3s increased in PSO lesional skin and co-produced IL1B and IL23A, which are pathological in PSO. Our study comprehensively describes the molecular characteristics of macrophages and DC subsets in AD and PSO at single-cell resolution, and identifies CD14+ DC3s as potential promoters of inflammation in PSO.
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Affiliation(s)
- Satoshi Nakamizo
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.,Skin Research Institute of Singapore, Agency for Science, Technology and Research, Singapore.,Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Charles-Antoine Dutertre
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.,Program in Emerging Infectious Disease, Duke-NUS Medical School, Singapore.,Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, Singapore
| | - Ahad Khalilnezhad
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.,Department of Microbiology and Immunology, Immunology Translational Research Programme, Yong Loo Lin School of Medicine, Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore
| | - Xiao Meng Zhang
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Shawn Lim
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Josephine Lum
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Geraldine Koh
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | | | | | - Kahbing Jasmine Tan
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.,Skin Research Institute of Singapore, Agency for Science, Technology and Research, Singapore
| | - Reiko Sato
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.,Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kaori Tomari
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Laurent Yvan-Charvet
- Institut National de la Santé et de la Recherche Médicale U1065, Centre Mediterraneen de Medecine Moleculaire, Atip-Avenir, Nice, France
| | - Helen He
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Emma Guttman-Yassky
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Benoit Malleret
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.,Department of Microbiology and Immunology, Immunology Translational Research Programme, Yong Loo Lin School of Medicine, Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore
| | - Rintaro Shibuya
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masashi Iwata
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Baptiste Janela
- Skin Research Institute of Singapore, Agency for Science, Technology and Research, Singapore
| | - Tsuyoshi Goto
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | | | | | | | | | | | - Kenji Kabashima
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.,Skin Research Institute of Singapore, Agency for Science, Technology and Research, Singapore.,Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | - Florent Ginhoux
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.,Skin Research Institute of Singapore, Agency for Science, Technology and Research, Singapore.,Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, Singapore.,Shanghai Institute of Immunology, Shanghai JiaoTong University School of Medicine, Shanghai, China
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8
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Dainichi T, Nakajima S, Iwata M, Kabashima K. Net Effects of NETs: New Concepts. J Invest Dermatol 2020; 140:939-941. [PMID: 32331568 DOI: 10.1016/j.jid.2019.12.016] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 12/19/2022]
Abstract
It is challenging to investigate neutrophil extracellular traps (NETs) and bacterial colonization in vivo. Bitschar et al. (2020) oppose an existing paradigm regarding neutrophils in host defense and propose that neutrophils increase Staphylococcus aureus skin colonization through NETs, not by trapping microbes but via indirect mechanisms. These results are open to interpretation and should stimulate productive discussions.
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Affiliation(s)
- Teruki Dainichi
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Saeko Nakajima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masashi Iwata
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan; Singapore Immunology Network and Skin Research Institute of Singapore, Agency for Science, Technology and Research, Singapore, Singapore
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9
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Hayashi K, Fukuyasu-Matsuo S, Inoue T, Fujiwara M, Asai Y, Iwata M, Suzuki S. Effects of cyclic stretching exercise on long-lasting hyperalgesia, joint contracture, and muscle injury following cast immobilization in rats. Physiol Res 2020; 69:861-870. [PMID: 32901491 DOI: 10.33549/physiolres.934437] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The effects of exercise on mechanical hyperalgesia, joint contracture, and muscle injury resulting from immobilization are not completely understood. This study aimed to investigate the effects of cyclic stretching on these parameters in a rat model of chronic post-cast pain (CPCP). Seventeen 8-week-old Wistar rats were randomly assigned to (1) control group, (2) immobilization (CPCP) group, or (3) immobilization and stretching exercise (CPCP+STR) group. In the CPCP and CPCP+STR groups, both hindlimbs of each rat were immobilized in full plantar flexion with a plaster cast for a 4-week period. In the CPCP+STR group, cyclic stretching exercise was performed 6 days/week for 2 weeks, beginning immediately after cast removal prior to reloading. Although mechanical hyperalgesia in the plantar skin and calf muscle, ankle joint contracture, and gastrocnemius muscle injury were observed in both immobilized groups, these changes were significantly less severe in the CPCP+STR group than in the CPCP group. These results clearly demonstrate the beneficial effect of cyclic stretching exercises on widespread mechanical hyperalgesia, joint contracture, and muscle injury in a rat model of CPCP.
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Affiliation(s)
- K Hayashi
- Multidisciplinary Pain Center, Aichi Medical University, Nagakute, Japan, Department of Rehabilitation, Faculty of Health Sciences, Nihon Fukushi University, Handa, Japan.
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10
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Ohtake H, Ishii J, Nishimura H, Kawai H, Muramatsu T, Harada M, Motoyama S, Watanabe E, Ozaki Y, Iwata M. Prospective validation of 0-hour/1-hour algorithm using high-sensitivity cardiac troponin I in Japanese patients presenting to emergency department. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1707] [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: 11/13/2022] Open
Abstract
Abstract
Background
The diagnostic performance of 0-hour/1-hour algorithm using high-sensitivity cardiac troponin I (hsTnI) for non-ST-segment elevation myocardial infarction (NSTEMI) has not been evaluated in an Asian population.
Purpose
We aimed to prospectively validate the 0-hour/1-hour algorithm using hsTnI in a Japanese population.
Method
We enrolled 754 Japanese patients (mean age of 70 years, 395 men) presenting to our emergency department with symptoms suggestive of NSTEMI. The hsTnI concentration was measured using the Siemens ADVIA Centaur hsTnI assay at presentation and after 1 hour. Patients were divided into three groups according to the algorithm: hsTnI below 3 ng/L (only applicable if chest pain onset >3 hours) or below 6 ng/L and delta 1 hour below 3 ng/L were the “rule-out” group; hsTnI at least 120 ng/L or delta 1 hour at least 12 ng/L were in the “rule-in” group; the remaining patients were classified as the “observe” group. Based on the Fourth Universal Definition of Myocardial Infarction, the final diagnosis was adjudicated by 2 independent cardiologists using all available information, including coronary angiography, coronary computed tomography, and follow-up data. Safety of rule-out was quantified by the negative predictive value (NPV) for NSTEMI, accuracy of rule-in by the positive predictive value (PPV), and overall efficacy by the proportion of patients triaged towards rule-out or rule-in within 1 hour.
Results
Prevalence of NSTEMI was 6.5%. The safety of rule-out (NPV 100%), accuracy of rule-in (PPV 26%), and overall efficacy (54%) were shown in Figure.
Conclusion
The 0-hour/1-hour algorithm using hsTnI is very safe and effective in triaging Japanese patients with suspected NSTEMI.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- H Ohtake
- Fujita Health University, Toyoake, Japan
| | - J Ishii
- Fujita Health University, Toyoake, Japan
| | | | - H Kawai
- Fujita Health University, Toyoake, Japan
| | | | - M Harada
- Fujita Health University, Toyoake, Japan
| | - S Motoyama
- Fujita Health University, Toyoake, Japan
| | - E Watanabe
- Fujita Health University, Toyoake, Japan
| | - Y Ozaki
- Fujita Health University, Toyoake, Japan
| | - M Iwata
- Fujita Health University, Toyoake, Japan
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11
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Komatsu-Fujii T, Nakajima S, Iwata M, Kataoka T, Hirata M, Nomura T, Kabashima K. Upregulated programmed death ligand 1 expression in nivolumab-induced lichen nitidus: A follow-up report with an immunohistochemical analysis. J Dermatol 2020; 47:e319-e320. [PMID: 32643192 DOI: 10.1111/1346-8138.15480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 04/21/2020] [Accepted: 06/01/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Takayoshi Komatsu-Fujii
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Dermatology, Tenri Hospital, Tenri, Japan
| | - Saeko Nakajima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masashi Iwata
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tatsuki Kataoka
- Department of Diagnostic Pathology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masahiro Hirata
- Department of Diagnostic Pathology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takashi Nomura
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Agency for Science, Technology and Research (A*STAR), Singapore Immunology Network (SIgN) and Skin Research Institute of Singapore (SRIS), Singapore, Singapore
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12
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Iwata M, Nakajima S, Tie D, Kabashima K. 408 Skin colonized Staphylococcus aureus exacerbates the inflammation of murine irritant contact dermatitis via modulating innate immune pathways. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.410] [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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13
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A Masengi KW, Mandagi IF, Manu L, Silooy F, Labaro IL, Masengi AWR, Sebua N, Masengi EIKG, Pinontoan B, Hutabarat Y, Hukom F, Iwata M, Abe Y, Sato Y, Kimura R, Yamahira K. Study on existence of the fisheries resources abundance by using environmental deoxyribonucleic acid (e-DNA) approach at fishing grounds in the Sulawesi Sea, Indonesia. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1757-899x/567/1/012026] [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]
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14
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Iwata M, Kasai H. A case of calcium pyrophosphate dihydrate crystal deposition disease suspected the tumor of temporomandibular joint. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.858] [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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15
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16
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Yabuwaki K, Iwata M, Ono K. Influence of environmental factors on well-being and care burden of elderly family caregivers: a bayesian structural equation modeling approach. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1247] [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: 10/28/2022]
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17
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Yamazaki K, Yasui H, Yamaguchi K, Kagawa Y, Kuboki Y, Yoshino T, Gamoh M, Komatsu Y, Satake H, Goto M, Tanioka H, Oki E, Kotaka M, Makiyama A, Denda T, Soeda J, Shibya K, Iwata M, Oba K, Kato T. A phase I/II study of panitumumab combined with TAS-102 in patients (pts) with RAS wild-type (wt) metastatic colorectal cancer (mCRC) refractory to standard chemotherapy: APOLLON study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.252] [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: 11/13/2022] Open
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18
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Shimamura Y, Iwasaki T, Iwata M, Watano S. Analysis of the Reaction Process in the Formation of Lanthanum Nickel Oxide via a Mechanochemical Route. KAGAKU KOGAKU RONBUN 2018. [DOI: 10.1252/kakoronbunshu.44.85] [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: 11/11/2022]
Affiliation(s)
| | | | - Masashi Iwata
- Department of Chemical Engineering, Osaka Prefecture University
| | - Satoru Watano
- Department of Chemical Engineering, Osaka Prefecture University
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19
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Kadooka H, Miyajima T, Tanaka T, Jami MS, Iwata M. Effect of Intermittent Addition on Turbidity Removal by Polymer Flocculant: Computer Simulation of Simplified Flocculation Model. J Chem Eng Japan / JCEJ 2018. [DOI: 10.1252/jcej.17we161] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hiroto Kadooka
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University
| | - Takumi Miyajima
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University
| | - Takanori Tanaka
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University
| | - Mohammed Saedi Jami
- Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University Malaysia
| | - Masashi Iwata
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University
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20
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Kadooka H, Miyajima T, Tanaka T, Jami MS, Iwata M. Simplified flocculation model for inorganic and polymer flocculants. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2017.1335322] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hiroto Kadooka
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Takumi Miyajima
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Takanori Tanaka
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Mohammed Saedi Jami
- Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia
| | - Masashi Iwata
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka, Japan
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21
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Nishida S, Inagaki R, Furukawa S, Iwata M, Suzuki J, Ito Y, Yasuda T. Selegiline hydrochloride (SEL) inhibits the uptake of 3 meta–iodobenzylguanidine (MIBG) and influences the result of MIBG myocardial scintigraphy in patients with parkinsonism. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1664] [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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22
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Iwata M. Dawn of the modern neurology in Japan. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Suzuki J, Inagaki R, Furukawa S, Iwata M, Nakai N, Nishida S, Ito Y. Efficacy of prehospital stroke scale including atrial fibrillation (Topspin) –10 years experiences. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2829] [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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24
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Uchiyama Y, Iwata M, Hashida H, Kitagawa K. Silent basal ganglionic infarcts and white matter lesions; which is more responsible for the clinical feautures of Alzheimer's daisease? J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2895] [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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25
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Motomura C, Matsuzaki H, Ono R, Iwata M, Okabe K, Akamine Y, Wakatsuki M, Murakami Y, Taba N, Odajima H. Aspirin is an enhancing factor for food-dependent exercise-induced anaphylaxis in children. Clin Exp Allergy 2017; 47:1497-1500. [PMID: 28892197 DOI: 10.1111/cea.13026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- C Motomura
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - H Matsuzaki
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - R Ono
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - M Iwata
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - K Okabe
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - Y Akamine
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - M Wakatsuki
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - Y Murakami
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - N Taba
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
| | - H Odajima
- Department of Pediatrics, National Hospital Organization Fukuoka Hospital, Fukuoka, Japan
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26
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Yasui T, Yamamoto T, Sakai N, Asano K, Takai T, Yoshitomi Y, Davis M, Takagi T, Sakamoto K, Sogabe S, Kamada Y, Lane W, Snell G, Iwata M, Goto M, Inooka H, Sakamoto JI, Nakada Y, Imaeda Y. Discovery of a novel B-cell lymphoma 6 (BCL6)-corepressor interaction inhibitor by utilizing structure-based drug design. Bioorg Med Chem 2017; 25:4876-4886. [PMID: 28760529 DOI: 10.1016/j.bmc.2017.07.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 07/18/2017] [Accepted: 07/19/2017] [Indexed: 11/18/2022]
Abstract
B-cell lymphoma 6 (BCL6) is a transcriptional repressor that can form complexes with corepressors via protein-protein interactions (PPIs). The complexes of BCL6 and corepressors play an important role in the formation of germinal centers (GCs), and differentiation and proliferation of lymphocytes. Therefore, BCL6-corepressor interaction inhibitors would be drug candidates for managing autoimmune diseases and cancer. Starting from high-throughput screening hits 1a and 2a, we identified a novel BCL6-corepressor interaction inhibitor 8c (cell-free enzyme-linked immunosorbent assay [ELISA] IC50=0.10µM, cell-based mammalian two-hybrid [M2H] assay IC50=0.72µM) by utilizing structure-based drug design (SBDD) based on an X-ray crystal structure of 1a bound to BCL6. Compound 8c also showed a good pharmacokinetic profile, which was acceptable for both in vitro and in vivo studies.
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Affiliation(s)
- Takeshi Yasui
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan.
| | - Takeshi Yamamoto
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Nozomu Sakai
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Kouhei Asano
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Takafumi Takai
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yayoi Yoshitomi
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Melinda Davis
- Takeda California Inc., 10410 Science Center Dr., San Diego, CA 92121, USA
| | - Terufumi Takagi
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Kotaro Sakamoto
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Satoshi Sogabe
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yusuke Kamada
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Weston Lane
- Takeda California Inc., 10410 Science Center Dr., San Diego, CA 92121, USA
| | - Gyorgy Snell
- Takeda California Inc., 10410 Science Center Dr., San Diego, CA 92121, USA
| | - Masashi Iwata
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Masayuki Goto
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Hiroshi Inooka
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Jun-Ichi Sakamoto
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yoshihisa Nakada
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yasuhiro Imaeda
- Takeda Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan.
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27
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Fujimura M, Izumimoto N, Kanie S, Kobayashi R, Yoshikawa S, Momen S, Hirakata M, Komagata T, Okanishi S, Iwata M, Hashimoto T, Doi T, Yoshimura N, Kawai K. Mechanisms of inhibitory action of TRK-130 (Naltalimide), a μ-opioid receptor partial agonist, on the micturition reflex. Int Urol Nephrol 2017; 49:587-595. [PMID: 28093646 DOI: 10.1007/s11255-017-1509-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 01/06/2017] [Indexed: 11/28/2022]
Abstract
PURPOSE To clarify the mechanism of inhibitory action of TRK-130 (Naltalimide), a unique µ-opioid receptor partial agonist, on the micturition reflex. METHODS The effect of TRK-130 on isovolumetric rhythmic bladder contractions (RBCs) was examined in guinea pigs, the effect of which was clarified by co-treatment with naloxone or in spinal cord transection. The effect of TRK-130 on urodynamic parameters was also observed in guinea pigs. In addition, the effect of TRK-130 on bladder contraction induced by peripheral stimulation of the pelvic nerve was investigated in rats. RESULTS TRK-130 (0.001-0.01 mg/kg, iv) dose-dependently inhibited RBCs, which was dose-dependently antagonized by naloxone; however, the antagonism susceptibility was different from morphine (1 mg/kg, iv). The minimum effective dose (0.003 mg/kg) of TRK-130 remained similar in spinal cord-transected animals. TRK-130 (0.0025 mg/kg, iv) increased bladder capacity without changing the voiding efficiency, maximum flow rate, and intravesical pressure at the maximum flow rate, whereas oxybutynin (1 mg/kg, iv) increased the bladder capacity but affected the other parameters. TRK-130 (0.005 mg/kg, iv) did not produce significant changes on the bladder contractions induced by peripheral stimulation of the pelvic nerve, while oxybutynin (1 mg/kg, iv) significantly suppressed the bladder contractions. CONCLUSIONS These results suggest that TRK-130 enhances the bladder storage function by modulating the afferent limb of the micturition reflex through µ-opioid receptors in the spinal cord. TRK-130 could be a more effective and safer therapeutic agent with a different fashion from antimuscarinics and conventional opioids for overactive bladder.
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Affiliation(s)
- Morihiro Fujimura
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan.
| | - Naoki Izumimoto
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan
| | - Sayoko Kanie
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan
| | - Ryosuke Kobayashi
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan
| | - Satoru Yoshikawa
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan
| | - Shinobu Momen
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan
| | - Mikito Hirakata
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan
| | - Toshikazu Komagata
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan
| | - Satoshi Okanishi
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa, Japan
| | - Masashi Iwata
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa, Japan
| | - Tadatoshi Hashimoto
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa, Japan
| | - Takayuki Doi
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa, Japan
| | - Naoki Yoshimura
- Departments of Urology and Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Koji Kawai
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa, 248-8555, Japan
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28
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Wada SI, Iwata M, Ozaki Y, Ozaki T, Hayashi J, Urata H. Design of cyclic RGD-conjugated Aib-containing amphipathic helical peptides for targeted delivery of small interfering RNA. Bioorg Med Chem 2016; 24:4478-4485. [DOI: 10.1016/j.bmc.2016.07.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 07/19/2016] [Accepted: 07/20/2016] [Indexed: 01/03/2023]
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29
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Yokoe I, Kobayashi H, Nishiwaki A, Sugiyama K, Nagasawa Y, Karasawa H, Iwata M, Nozaki T, Ikumi N, Inomata H, Shiraiwa H, Kitamura N, Takei M. FRI0204 Effect of Tocilizumab Treatment on QTc Interval in Patients with Rheumatoid Arthritis without Cardiac Symptoms. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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30
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Nishiwaki A, Kobayashi H, Nagasawa Y, Sugiyama K, Ikumi N, Nozaki T, Inomata H, Karasawa H, Shiraiwa H, Iwata M, Kitamura N, Takei M. FRI0119 The Association between QTc Interval and Myocardial Abnormalities in Rheumatoid Arthritis Patients without Cardiac Symptoms, by Assessed Using Cardiac Magnetic Resonance Imaging. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3187] [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: 11/03/2022]
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31
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Sugiyama K, Kobayashi H, Kobayashi Y, Nagasawa Y, Ikumi N, Nozaki T, Inomata H, Shiraiwa H, Karasawa H, Iwata M, Kitamura N, Matsukawa Y, Takei M. THU0337 Raynaud Phenomenon Is Associated with Myocardial Fibrosis in Primary Sjögren Syndrome, Assessed by A Cardiac Magnetic Resonance Approach: A Prospective Pilot Study at A Single Center. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.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: 11/03/2022]
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Urushihara D, Komabuchi M, Ishizawa N, Iwata M, Fukuda K, Asaka T. B23-O-03Observation of the crystal structure and the domains in the layered bismuth titanate BÌ 4TÌ 3O 12. Microscopy (Oxf) 2015. [DOI: 10.1093/jmicro/dfv161] [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: 11/13/2022] Open
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34
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Sugiyama K, Kobayashi H, Kobayashi Y, Nagasawa Y, Ikumi N, Nozaki T, Inomata H, Shiraiwa H, Karasawa H, Kitamura N, Iwata M, Matsukawa Y, Takei M. FRI0472 Detection of Left Ventricular Morphology and Myocardial Abnormalities Using Contrast Cardiac Magnetic Resonance Imaging at 3.0 Tesla in Systemic Sclerosis Without Cardiac Manifestations. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3994] [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: 11/04/2022]
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35
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Iwata M, Tanizaki H, Fujii H, Endo Y, Fujisawa A, Tanioka M, Miyachi Y, Kabashima K. Contact urticaria due to a face mask coated with disinfectant liquid spray. Acta Derm Venereol 2015; 95:628-9. [PMID: 25178361 DOI: 10.2340/00015555-1962] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Masashi Iwata
- Department of Dermatology, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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36
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Sasaki T, Iwata M, Yamato M, Takeda Y, Imamura Y, Hayashi T. Further characterization of basement membrane-associated collagen in comparison with type IV collagen alpha-1-chain in the extracts of human placenta with monoclonal antibodies. Contrib Nephrol 2015; 107:64-9. [PMID: 8004976 DOI: 10.1159/000422962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- T Sasaki
- Department of Chemistry, College of Arts and Sciences, University of Tokyo, Japan
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37
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Ginting AN, Fukuyama R, Jami MS, Tanaka T, Iwata M. Improving Slurry Dewatering Performance of Basket Centrifuge: Discharge of Supernatant Using Bypass Filter Medium. J Chem Eng Japan / JCEJ 2015. [DOI: 10.1252/jcej.14we389] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alvin Najmuddin Ginting
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University
| | - Ryo Fukuyama
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University
| | - Mohammed Saedi Jami
- Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University Malaysia
| | - Takanori Tanaka
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University
| | - Masashi Iwata
- Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University
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38
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Matsuzaki H, Iwata M, Miyamoto T, Terashige T, Iwano K, Takaishi S, Takamura M, Kumagai S, Yamashita M, Takahashi R, Wakabayashi Y, Okamoto H. Excitation-photon-energy selectivity of photoconversions in halogen-bridged Pd-chain compounds: Mott insulator to metal or charge-density-wave state. Phys Rev Lett 2014; 113:096403. [PMID: 25215998 DOI: 10.1103/physrevlett.113.096403] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Indexed: 06/03/2023]
Abstract
Ultrafast photoinduced transitions of a one-dimensional Mott insulator into two distinct electronic phases, metal and charge-density-wave (CDW) state, were achieved in a bromine-bridged Pd-chain compound [Pd(en)2Br](C5-Y)2H2O (en=ethylenediamine and C5-Y=dialkylsulfosuccinate), by selecting the photon energy of a femtosecond excitation pulse. For the resonant excitation of the Mott-gap transition, excitonic states are generated and converted to one-dimensional CDW domains. For the higher-energy excitation, free electron and hole carriers are produced, giving rise to a transition of the Mott insulator to a metal. Such selectivity in photoconversions by the choice of initial photoexcited states opens a new possibility for the developments of advanced optical switching and memory functions.
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Affiliation(s)
- H Matsuzaki
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - M Iwata
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - T Miyamoto
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - T Terashige
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - K Iwano
- Institute of Materials Structure Science, Graduate University for Advanced Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - S Takaishi
- Department of Chemistry, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - M Takamura
- Department of Chemistry, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - S Kumagai
- Department of Chemistry, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - M Yamashita
- Department of Chemistry, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - R Takahashi
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - Y Wakabayashi
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - H Okamoto
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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Yokota-Nakatsuma A, Takeuchi H, Ohoka Y, Kato C, Song SY, Hoshino T, Yagita H, Ohteki T, Iwata M. Retinoic acid prevents mesenteric lymph node dendritic cells from inducing IL-13-producing inflammatory Th2 cells. Mucosal Immunol 2014; 7:786-801. [PMID: 24220301 DOI: 10.1038/mi.2013.96] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 10/12/2013] [Indexed: 02/04/2023]
Abstract
The vitamin A (VA) metabolite retinoic acid (RA) affects the properties of T cells and dendritic cells (DCs). In VA-deficient mice, we observed that mesenteric lymph node (MLN)-DCs induce a distinct inflammatory T helper type 2 (Th2)-cell subset that particularly produces high levels of interleukin (IL)-13 and tumor necrosis factor-α (TNF-α). This subset expressed homing receptors for skin and inflammatory sites, and was mainly induced by B220(-)CD8α(-)CD11b(+)CD103(-) MLN-DCs in an IL-6- and OX40 ligand-dependent manner, whereas RA inhibited this induction. The corresponding MLN-DC subset of VA-sufficient mice induced a similar T-cell subset in the presence of RA receptor antagonists. IL-6 induced this subset differentiation from naive CD4(+) T cells upon activation with antibodies against CD3 and CD28. Transforming growth factor-β inhibited this induction, and reciprocally enhanced Th17 induction. Treatment with an agonistic anti-OX40 antibody and normal MLN-DCs enhanced the induction of general inflammatory Th2 cells. In VA-deficient mice, proximal colon epithelial cells produced TNF-α that may have enhanced OX40 ligand expression in MLN-DCs. The repeated oral administrations of a T cell-dependent antigen primed VA-deficient mice for IL-13-dependent strong immunoglobulin G1 (IgG1) responses and IgE responses that caused skin allergy. These results suggest that RA inhibits allergic responses to oral antigens by preventing MLN-DCs from inducing IL-13-producing inflammatory Th2 cells.
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Affiliation(s)
- A Yokota-Nakatsuma
- 1] Laboratory of Immunology, Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Kagawa, Japan [2] JST, CREST, Tokyo, Japan
| | - H Takeuchi
- 1] Laboratory of Immunology, Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Kagawa, Japan [2] JST, CREST, Tokyo, Japan
| | - Y Ohoka
- 1] Laboratory of Immunology, Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Kagawa, Japan [2] JST, CREST, Tokyo, Japan
| | - C Kato
- Institute of Neuroscience, Tokushima Bunri University, Kagawa, Japan
| | - S-Y Song
- 1] JST, CREST, Tokyo, Japan [2] Institute of Neuroscience, Tokushima Bunri University, Kagawa, Japan
| | - T Hoshino
- Department of Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - H Yagita
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - T Ohteki
- 1] JST, CREST, Tokyo, Japan [2] Department of Biodefense Research, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Iwata
- 1] Laboratory of Immunology, Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Kagawa, Japan [2] JST, CREST, Tokyo, Japan
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Inomata H, Kobayashi H, Kobayashi Y, Ikumi N, Yokoe I, Nagasawa Y, Sugiyama K, Nozaki T, Shiraiwa H, Kitamura N, Iwata M, Takei M. AB0321 IL-6 Blockade Reduces Circulating N-Terminal Pro-Brain Natriuretic Peptide Levels in Patients with Active Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2189] [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: 11/03/2022]
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41
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Ikumi N, Inomata H, Nagasawa Y, Sugiyama K, Nozaki T, Yokoe I, Shiraiwa H, Karasawa H, Kitamura N, Iwata M, Matsukawa Y, Kobayashi H, Kobayashi Y, Takei M. FRI0437 How do we Treat Patients with Focus Score ≥1, but not Consistent with the New American College of Rheumatology Classification Criteria for SjÖGren's Syndrome? Evaluation from Study in Japanese Patients. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2684] [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: 11/04/2022]
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42
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Iwata M, Tanizaki H, Endo Y, Ishida Y, Fujisawa A, Tanioka M, Miyachi Y, Kabashima K. Malignant melanoma arising in the skin lesions of Nagashima-type palmoplantar keratosis. Eur J Dermatol 2014; 24:259-60. [PMID: 24721785 DOI: 10.1684/ejd.2014.2301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Masashi Iwata
- Department of Dermatology, Kyoto University Graduate School of Medicine 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hideaki Tanizaki
- Department of Dermatology, Kyoto University Graduate School of Medicine 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yuichiro Endo
- Department of Dermatology, Kyoto University Graduate School of Medicine 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yoshihiro Ishida
- Department of Dermatology, Kyoto University Graduate School of Medicine 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Akihiro Fujisawa
- Department of Dermatology, Kyoto University Graduate School of Medicine 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Miki Tanioka
- Department of Dermatology, Kyoto University Graduate School of Medicine 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yoshiki Miyachi
- Department of Dermatology, Kyoto University Graduate School of Medicine 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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Hayashi H, Iwata M, Tsuchimori N, Matsumoto T. Activation of peripheral KCNQ channels attenuates inflammatory pain. Mol Pain 2014; 10:15. [PMID: 24555569 PMCID: PMC3936840 DOI: 10.1186/1744-8069-10-15] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [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: 10/28/2013] [Accepted: 02/10/2014] [Indexed: 11/21/2022] Open
Abstract
Background Refractory chronic pain dramatically reduces the quality of life of patients. Existing drugs cannot fully achieve effective chronic pain control because of their lower efficacy and/or accompanying side effects. Voltage-gated potassium channels (KCNQ) openers have demonstrated their analgesic effect in preclinical and clinical studies, and are thus considered to be a potential therapeutic target as analgesics. However, these drugs exhibit a narrow therapeutic window due to their imposed central nerve system (CNS) side effects. To clarify the analgesic effect by peripheral KCNQ channel activation, we investigated whether the analgesic effect of the KCNQ channel opener, retigabine, is inhibited by intracerebroventricular (i.c.v.) administration of the KCNQ channel blocker, 10, 10-bis (4-Pyridinylmethyl)-9(10H) -anthracenone dihydrochloride (XE-991) in rats. Results Oral administration (p.o.) of retigabine showed an anticonvulsant effect on maximal electronic seizures and an analgesic effect on complete Freund’s adjuvant-induced thermal hyperalgesia. However, impaired motor coordination and reduced exploratory behavior were also observed at the analgesic doses of retigabine. Administration (i.c.v.) of XE-991 reversed the retigabine-induced anticonvulsant effect, impaired motor coordination and reduced exploratory behavior but not the analgesic effect. Moreover, intraplantar administration of retigabine or an additional KCNQ channel opener, N-(6-Chloro-pyridin-3-yl)-3,4-difluoro-benzamide (ICA-27243), inhibited formalin-induced nociceptive behavior. Conclusions Our findings suggest that the peripheral sensory neuron is the main target for KCNQ channel openers to induce analgesia. Therefore, peripheral KCNQ channel openers that do not penetrate the CNS may be suitable analgesic drugs as they would prevent CNS side effects.
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Affiliation(s)
| | | | - Noboru Tsuchimori
- Pharmaceutical Research Division, Inflammation Drug Discovery Unit, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa, Japan.
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Kobayashi Y, Ando Y, Nishiura M, Kishizawa H, Iwata M, Matake N, Tomida K. Recent Progress of SOFC Combined Cycle System with Segmented-In-Series Tubular Type Cell Stack at MHI. ACTA ACUST UNITED AC 2013. [DOI: 10.1149/05701.0053ecst] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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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46
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Inada S, Ono T, Shibata N, Iwata M, Haraguchi R, Ashihara T, Abe A, Ikeda T, Mitsui K, Boyett M, Dobrzynski H, Nakazawa K. Simulation study of ventricular rate control therapy during atrial fibrillation using one-dimensional cable model with two conduction pathways. J Electrocardiol 2013. [DOI: 10.1016/j.jelectrocard.2013.05.080] [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: 11/30/2022]
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47
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Iwata M, Inoue S, Kawaguchi M, Furuya H. Effects of diazepam and flumazenil on forebrain ischaemia in a rat model of benzodiazepine tolerance. Br J Anaesth 2012; 109:935-42. [DOI: 10.1093/bja/aes340] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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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Ota M, Fukami T, Arakawa M, Hayashi H, Suzuki T, Iwata M, Tomono K, Hidaka S. Examination of factors that delay the elution of acetaminophen from over-the-counter drugs. Pharmazie 2012; 67:1018-1025. [PMID: 23346767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The information on the stability of medications is important to secure their quality. There is, however, little information about the stability of medications which assume to be kept by patients and customers. We previously showed that a delay in drug release occurs in some over-the-counter (OTC) drugs following storage in a high temperature, high humidity environment. In this study we prepared model tablet formulations containing an active ingredient and excipients to investigate the cause of this delayed release. The results reveal that delayed release occurs in preparations compounded with acetaminophen (AA) as the active ingredient and erythritol (ET) and crospovidone (CP) as excipients. In addition, ET deliquesces in a high humidity environment, then incorporates other particles during room temperature storage to form an aggregate. SEM observations and micropore distribution measurements conducted on OTC tablets that exhibit delayed release revealed that the number of intraparticle pores decreased after storage under high temperature, high humidity conditions. Thus, the delayed release by these pharmaceutical product formulations may be due to a change in the micropore structure both on the surface and within the particles, thereby decreasing the solvent infiltration pathways leading to the interior of the preparation.
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Affiliation(s)
- M Ota
- Department of Pharmacy, School of Pharmacy, Nihon University, Chiba, Japan
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49
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Okamoto K, Kodama K, Takase K, Nakamoto K, Coffey H, Selvaraj A, Smith P, Iwata M, Tsuruoka A. 307 Anti-tumor Activities of Lenvatinib Against RET Gene Fusion Driven Tumor Models. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72105-6] [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: 11/24/2022]
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50
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Kudo C, Naruishi K, Maeda H, Abiko Y, Hino T, Iwata M, Mitsuhashi C, Murakami S, Nagasawa T, Nagata T, Yoneda S, Nomura Y, Noguchi T, Numabe Y, Ogata Y, Sato T, Shimauchi H, Yamazaki K, Yoshimura A, Takashiba S. Assessment of the Plasma/Serum IgG Test to Screen for Periodontitis. J Dent Res 2012; 91:1190-5. [DOI: 10.1177/0022034512461796] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Chronic periodontitis is a silent infectious disease prevalent worldwide and affects lifestyle-related diseases. Therefore, efficient screening of patients is essential for general health. This study was performed to evaluate prospectively the diagnostic utility of a blood IgG antibody titer test against periodontal pathogens. Oral examination was performed, and IgG titers against periodontal pathogens were measured by ELISA in 1,387 individuals. The cut-off value of the IgG titer was determined in receiver operating characteristic curve analysis, and changes in periodontal clinical parameters and IgG titers by periodontal treatment were evaluated. The relationships between IgG titers and severity of periodontitis were analyzed. The best cut-off value of IgG titer against Porphyromonas gingivalis for screening periodontitis was 1.682. Both clinical parameters and IgG titers decreased significantly under periodontal treatment. IgG titers of periodontitis patients were significantly higher than those of healthy controls, especially in those with sites of probing pocket depth over 4 mm. Multiplied cut-off values were useful to select patients with severe periodontitis. A blood IgG antibody titer test for Porphyromonas gingivalis is useful to screen hitherto chronic periodontitis patients (ClinicalTrials.gov number NCT01658475).
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Affiliation(s)
- C. Kudo
- Department of Periodontics and Endodontics, Okayama University Hospital, Okayama, Japan
| | - K. Naruishi
- Department of Periodontics and Endodontics, Okayama University Hospital, Okayama, Japan
- currently, Division of Endodontology, Iwate Medical University, Department of Conservative Dentistry and Oral Rehabilitation, Iwate, Japan
| | - H. Maeda
- Department of Pathophysiology - Periodontal Science, Okayama, University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y. Abiko
- Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - T. Hino
- Department of Periodontal Medicine, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima, Japan
| | - M. Iwata
- Toyota Motor Corporation, Tokyo/Aichi, Japan
| | | | - S. Murakami
- Department of Periodontology, Division of Oral Biology and Disease Control, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - T. Nagasawa
- Department of Hard Tissue Engineering, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
- currently, Department of Oral Rehabilitation, Division of Periodontology and Endodontology, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - T. Nagata
- Department of Periodontology and Endodontology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - S. Yoneda
- Department of Periodontology and Endodontology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Y. Nomura
- Department of Translational Research, School of Dental Medicine, Tsurumi University, Kanagawa, Japan
| | - T. Noguchi
- Department of Periodontology, School of Dentistry, Aichi-Gakuin University, Aichi, Japan
| | - Y. Numabe
- Department of Periodontology, School of Life Dentistry at Tokyo, Nippon Dental University, Tokyo, Japan
| | - Y. Ogata
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - T. Sato
- Department of Oral Health, School of Life Dentistry at Tokyo, Nippon Dental University, Tokyo, Japan
| | - H. Shimauchi
- Department of Oral Biology, Division of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Miyagi, Japan
| | - K. Yamazaki
- Laboratory of Periodontology and Immunology, Department of Oral Health and Welfare, Niigata University Faculty of Dentistry, Niigata, Japan
| | - A. Yoshimura
- Department of Periodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S. Takashiba
- Department of Pathophysiology - Periodontal Science, Okayama, University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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