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Matsubara S, Igarashi T, Matsubara T. Avoiding intrathecal injection of tranexamic acid at caesarean section: Some important additions. BJOG 2024; 131:870-871. [PMID: 37012675 DOI: 10.1111/1471-0528.17478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/16/2022] [Accepted: 12/27/2022] [Indexed: 04/05/2023]
Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynaecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
- Department of Obstetrics and Gynaecology, Koga Red Cross Hospital, 1150 Shimoyama, Koga, Ibaraki, 306-0014, Japan
| | - T Igarashi
- Department of Anaesthesiology, Jichi Medical University, Shimotsuke, Japan
| | - T Matsubara
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA
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Ueda Y, Matsubara S. Groove sign in eosinophilic fasciitis. QJM 2024; 117:283-284. [PMID: 37991938 DOI: 10.1093/qjmed/hcad264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Indexed: 11/24/2023] Open
Affiliation(s)
- Y Ueda
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - S Matsubara
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
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Abstract
A 77-year-old man presented with abdominal pain for 1 week. He was taking enteric-coated low-dose aspirin (LDA) to prevent secondary cardiovascular events and a proton pump inhibitor (PPI). Computed tomography indicated a small intestinal perforation; thus, small intestine resection was performed. Two months after surgery, he experienced a recurrence of the perforation. Since his repeated perforation was suspected to be due to LDA, LDA was discontinued. He has experienced no further recurrence since then. This is the first case of small intestinal perforation caused by enteric-coated LDA. Enteric-coated LDA may cause small intestinal perforation in patients with severe atherosclerosis under PPI administration.
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Affiliation(s)
| | - Ken-Ei Sada
- Department of Clinical Epidemiology, Kochi Medical School, Kochi University, Japan
| | - Haruo Sawada
- Department of Internal Medicine, Oida Hospital, Japan
| | - Jiro Oida
- Department of Surgery, Oida Hospital, Japan
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Amamoto R, Shimamoto K, Suwa T, Park S, Matsumoto H, Shimizu K, Katto M, Makino H, Matsubara S, Aoyagi Y. Relationships between dietary diversity and gut microbial diversity in the elderly. Benef Microbes 2022; 13:453-464. [PMID: 36377581 DOI: 10.3920/bm2022.0054] [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: 11/16/2022]
Abstract
Diet is considered as a major driver of gut microbiota composition. However, little is known about the relationship between overall dietary balance and gut microbiota, especially in the elderly. Here, using the Quantitative Index for Dietary Diversity (QUANTIDD), we analysed the relationships between dietary diversity and gut microbiota diversity in 445 Japanese subjects aged 65-90 years. We also examined the effect of age by comparing the young-old group aged 65 to 74 years (<75 years group; n=246) and the old-old group aged 75 years and older (≥75 years group; n=199). QUANTIDD showed significant positive relationships with Pielou's evenness and Shannon indices, two α-diversity indices related to the uniformity of species distribution. This suggests that a more diverse diet is associated with a more uniform abundance of various bacterial groups, rather than a greater variety of gut bacteria. QUANTIDD also showed significant positive associations with the abundance of Anaerostipes, Eubacterium eligens group, and Eubacterium ventriosum group, which produce short-chain fatty acids (SCFAs) and are beneficial to health. Negative association was found with the abundance of Ruminococcus gnavus group, which produces inflammatory polysaccharides. Positive associations between QUANTIDD and α-diversity indices or the abundance of specific bacterial groups were identified among all subjects and in the <75 years group, but not in the ≥75 years group. Our results suggest that dietary diversity contributes to the diversity of the gut microbiota and increases the abundance of SCFAs-producing bacteria, but only up to a certain age. These findings help to understand the complex relationship between diet and gut microbiota, and provide hints for specific dietary interventions to promote beneficial gut microbiota in the elderly.
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Affiliation(s)
- R Amamoto
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K Shimamoto
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - T Suwa
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - S Park
- Exercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
| | - H Matsumoto
- Microbiological Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K Shimizu
- Basic Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - M Katto
- Basic Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - H Makino
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - S Matsubara
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Y Aoyagi
- Exercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
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Kawaoka Y, Uraki R, Kiso M, Iida S, Imai M, Takashita E, Kuroda M, Halfmann P, Loeber S, Maemura T, Yamayoshi S, Fujisaki S, Wang Z, Ito M, Ujie M, Iwatsuki-Horimoto K, Furusawa Y, Wright R, Chong Z, Ozono S, Yasuhara A, Ueki H, Sakai Y, Li R, Liu Y, Larson D, Koga M, Tsutsumi T, Adachi E, Saito M, Yamamoto S, Matsubara S, Hagihara M, Mitamura K, Sato T, Hojo M, Hattori SI, Maeda K, Okuda M, Murakami J, Duong C, Godbole S, Douek D, Watanabe S, Ohmagari N, Yotsuyanagi H, Diamond M, Hasegawa H, Mitsuya H, Suzuki T. Characterization and antiviral susceptibility of SARS-CoV-2 Omicron/BA.2. Res Sq 2022:rs.3.rs-1375091. [PMID: 35233565 PMCID: PMC8887076 DOI: 10.21203/rs.3.rs-1375091/v1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The recent emergence of SARS-CoV-2 Omicron variants possessing large numbers of mutations has raised concerns of decreased effectiveness of current vaccines, therapeutic monoclonal antibodies, and antiviral drugs for COVID-19 against these variants1,2. While the original Omicron lineage, BA.1, has become dominant in many countries, BA.2 has been detected in at least 67 countries and has become dominant in the Philippines, India, and Denmark. Here, we evaluated the replicative ability and pathogenicity of an authentic infectious BA.2 isolate in immunocompetent and human ACE2 (hACE2)-expressing mice and hamsters. In contrast to recent data with chimeric, recombinant SARS-CoV-2 strains expressing the spike proteins of BA.1 and BA.2 on an ancestral WK-521 backbone3, we observed similar infectivity and pathogenicity in mice and hamsters between BA.2 and BA.1, and less pathogenicity compared to early SARS-CoV-2 strains. We also observed a marked and significant reduction in the neutralizing activity of plasma from COVID-19 convalescent individuals and vaccine recipients against BA.2 compared to ancestral and Delta variant strains. In addition, we found that some therapeutic monoclonal antibodies (REGN10987/REGN10933, COV2-2196/COV2-2130, and S309) and antiviral drugs (molnupiravir, nirmatrelvir, and S-217622) can restrict viral infection in the respiratory organs of hamsters infected with BA.2. These findings suggest that the replication and pathogenicity of BA.2 is comparable to that of BA.1 in rodents and that several therapeutic monoclonal antibodies and antiviral compounds are effective against Omicron/BA.2 variants.
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Affiliation(s)
| | - Ryuta Uraki
- National Center for Global Health and Medicine Research Institute
| | - Maki Kiso
- Institute of Medical Sciences, University of Tokyo
| | - Shun Iida
- National Institute of Infectious Diseases
| | | | | | | | - Peter Halfmann
- Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI, USA
| | | | | | | | | | | | - Mutsumi Ito
- University of Tokyo, Institute of Medical Science
| | - Michiko Ujie
- Division of Virology, Institute of Medical Science, University of Tokyo
| | | | - Yuri Furusawa
- Division of Virology, Institute of Medical Science, University of Tokyo
| | - Ryan Wright
- Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison
| | | | | | - Atsuhiro Yasuhara
- Division of Virology, Institute of Medical Science, University of Tokyo
| | | | - Yuko Sakai
- Institute of Medical Sciences, University of Tokyo
| | - Rong Li
- Department of Animal Dairy, and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University
| | - Yanan Liu
- Department of Animal Dairy, and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University
| | - Deanna Larson
- Utah State University, College of Agriculture and Applied Sciences
| | - Michiko Koga
- The Institute of Medical Science, the University of Tokyo
| | - Takeya Tsutsumi
- Division of Infectious Diseases, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo
| | - Eisuke Adachi
- The Institute of Medical Science, the University of Tokyo
| | - Makoto Saito
- Division of Infectious Diseases, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo
| | - Shinya Yamamoto
- Division of Infectious Diseases, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo
| | - Shohei Matsubara
- Division of Infectious Diseases, Advanced Clinical Research Center, Institute of Medical Science, University of Tokyo
| | | | | | - Tetsuro Sato
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital
| | - Masayuki Hojo
- Department of Respiratory Medicine, National Center for Global Health and Medicine Hospital
| | | | - Kenji Maeda
- National Center For Global Health and Medicine
| | - Moe Okuda
- Department of Virology, Institute of Medical Science, University of Tokyo
| | - Jurika Murakami
- Department of Virology, Institute of Medical Science, University of Tokyo
| | - Calvin Duong
- Department of Virology, Institute of Medical Science, University of Tokyo
| | - Sucheta Godbole
- Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health
| | | | | | - Norio Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine
| | | | | | | | - Hiroaki Mitsuya
- National Center for Global Health and Medicine Research Institute
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Matsubara S. Some concerns regarding aortic cross-clamping in caesarean hysterectomy for placenta accreta spectrum (Re: Vascular control by infrarenal aortic cross-clamping in placenta accreta spectrum disorders: description of technique; Something old, something new & something borrowed). BJOG 2021; 128:1556-1557. [PMID: 33966336 DOI: 10.1111/1471-0528.16723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2021] [Indexed: 01/21/2023]
Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynaecology, Jichi Medical University, Shimotsuke, Japan
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Toi H, Yagi K, Matsubara S, Hara K, Uno M. Clinical Features of Cytotoxic Lesions of the Corpus Callosum Associated with Aneurysmal Subarachnoid Hemorrhage. AJNR Am J Neuroradiol 2021; 42:1046-1051. [PMID: 33664118 DOI: 10.3174/ajnr.a7055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 12/01/2020] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND PURPOSE Patients with SAH due to a ruptured intracranial aneurysm occasionally show reversible high-signal lesions in the splenium of the corpus callosum on DWI. These lesions are called cytotoxic lesions of the corpus callosum. This study retrospectively reviewed cases of aneurysmal SAH and investigated clinical features of cytotoxic lesions of the corpus callosum associated with SAH. MATERIALS AND METHODS Participants comprised 259 patients with aneurysmal SAH who had undergone curative treatment at our hospital. We examined the following items related to cytotoxic lesions of the corpus callosum: occurrence rate, timing of appearance and disappearance of the lesions, lesion size, aneurysm location, severity of SAH, treatment method, clinical course, and outcome. RESULTS Among the 259 cases, DWI detected cytotoxic lesions of the corpus callosum in 33 patients (12.7%). The mean periods from the onset of SAH to detection and disappearance of cytotoxic lesions of the corpus callosum were 6.3 days (range, 0-25 days) and 35.7 days (range, 9-78 days), respectively. Cytotoxic lesions of the corpus callosum were classified into 2 types: a small type localized in the splenium in 26 cases (78.9%) and a large type spread along the ventricle in 7 cases (21.2%). The severity of SAH, coiling, hydrocephalus, and poor mRS score at discharge were significantly higher in the group with cytotoxic lesions of the corpus callosum. However, multivariate analysis did not identify cytotoxic lesions of the corpus callosum as a risk factor for poor outcome. CONCLUSIONS Cytotoxic lesions of the corpus callosum appear at a frequency of 12.7% in patients with aneurysmal SAH. Cytotoxic lesions of the corpus callosum associated with SAH take several days to appear and subsequently resolve within about a month. Cytotoxic lesions of the corpus callosum were likely to occur in patients with high-grade SAH but did not represent a predictor of poor outcome.
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Affiliation(s)
- H Toi
- From the Department Neurosurgery (H.T., K.Y., S.M., K.H., M.U.), Kawasaki Medical School, Kurashiki, Okayama, Japan .,Department Neurosurgery (H.T.), Oita Oka Hospital, Oita, Japan
| | - K Yagi
- From the Department Neurosurgery (H.T., K.Y., S.M., K.H., M.U.), Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - S Matsubara
- From the Department Neurosurgery (H.T., K.Y., S.M., K.H., M.U.), Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - K Hara
- From the Department Neurosurgery (H.T., K.Y., S.M., K.H., M.U.), Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - M Uno
- From the Department Neurosurgery (H.T., K.Y., S.M., K.H., M.U.), Kawasaki Medical School, Kurashiki, Okayama, Japan
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Matsubara D, Takahashi H, Kataoka K, Minami T, Furukawa R, Matsubara S, Yamagata T. Tracheal stenosis due to vascular rings: its possible prenatal diagnosis based on four cases of vascular rings with or without eventual tracheal stenosis. CLIN EXP OBSTET GYN 2019. [DOI: 10.12891/ceog4787.2019] [Citation(s) in RCA: 2] [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: 11/01/2022]
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Matsubara S, Takahashi H. Re: methotrexate infusion followed by uterine artery embolisation for the management of placental adhesive disorders: a case series. Clin Radiol 2019; 74:645-646. [PMID: 31200930 DOI: 10.1016/j.crad.2019.03.027] [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] [Received: 02/27/2019] [Accepted: 03/28/2019] [Indexed: 11/27/2022]
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Momma D, Onodera T, Homan K, Matsubara S, Sasazawa F, Furukawa J, Matsuoka M, Yamashita T, Iwasaki N. Coordinated existence of multiple gangliosides is required for cartilage metabolism. Osteoarthritis Cartilage 2019; 27:314-325. [PMID: 30471358 DOI: 10.1016/j.joca.2018.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 11/08/2018] [Accepted: 11/14/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Gangliosides, ubiquitously existing membrane components that modulate transmembrane signaling and mediate cell-to-cell and cell-to-matrix interactions, are key molecules of inflammatory and neurological disorders. However, the functions of gangliosides in the cartilage degradation process remain unclear. We investigated the functional role of gangliosides in cartilage metabolism related to osteoarthritis (OA) pathogenesis. DESIGN We generated knockout (KO) mice by targeting the β1, 4-N-acetylgalactosaminyltransferase (GalNAcT) gene, which encodes an enzyme of major gangliosides synthesis, and the GD3 synthase (GD3S) gene, which encodes an enzyme of partial gangliosides synthesis. In vivo OA and in vitro cartilage degradation models were used to evaluate the effect of gangliosides on the cartilage degradation process. RESULTS The GalNAcT and GD3S KO mice developed and grew normally; nevertheless, OA changes in these mice were enhanced with aging. The GalNAcT KO mice showed significantly enhanced OA progression compared to GD3S mice in vivo. Both GalNAcT and GD3S KO mice showed severe IL-1α-induced cartilage degradation ex vivo. Phosphorylation of MAPKs was enhanced in both GalNAcT and GD3S KOs after IL-1α stimulation. Gangliosides modulated by GalNAcT or GD3S rescued an increase of MMP-13 induced by IL-1α in mice lacking GalNAcT or GD3S after exogenous replenishment in vitro. CONCLUSION These data show that the deletion of gangliosides in mice enhanced OA development. Moreover, the gangliosides modulated by GalNAcT are important for cartilage metabolism, suggesting that GalNAcT is a potential target molecule for the development of novel OA treatments.
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Affiliation(s)
- D Momma
- Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - T Onodera
- Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - K Homan
- Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - S Matsubara
- Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - F Sasazawa
- Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - J Furukawa
- Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - M Matsuoka
- Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - T Yamashita
- Laboratory of Biochemistry, Azabu University, Graduate School of Veterinary Medicine, Sagamihara, Japan.
| | - N Iwasaki
- Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
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Arikawa Y, Matsubara S, Kishimoto H, Abe Y, Sakata S, Morace A, Mizutani R, Nishibata J, Yogo A, Nakai M, Shiraga H, Nishimura H, Fujioka S, Kodama R. A large-aperture high-sensitivity avalanche image intensifier panel. Rev Sci Instrum 2018; 89:10I128. [PMID: 30399964 DOI: 10.1063/1.5037623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/19/2018] [Indexed: 06/08/2023]
Abstract
A large-aperture high-sensitivity image intensifier panel that consists of an avalanche photodiode array and a light-emitting diode array is presented. The device has 40% quantum efficiency, over 104 optical gain, and 80-ns time resolution. The aperture size of the device is 20 cm, and with the current manufacturing process, it can be scaled to arbitrarily larger sizes. The device can intensify the light from a single particle scintillation emission to an eye-visible bright flash. The image resolution of the device is currently limited by the size of the avalanche photodiode that is 2 mm, although it can be scaled to smaller sizes in the near future. The image intensifier is operated at a small voltage, typically +57 V. The device can be applied to various applications, such as scintillation imaging, night vision cameras, and an image converter from non-visible light (such as infrared or ultraviolet) to visible light.
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Affiliation(s)
- Y Arikawa
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - S Matsubara
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - H Kishimoto
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - Y Abe
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - S Sakata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - A Morace
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - R Mizutani
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - J Nishibata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - A Yogo
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - M Nakai
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - H Shiraga
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - H Nishimura
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
| | - R Kodama
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, Japan
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Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynaecology, Jichi Medical University, Tochigi, Japan
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Hirose J, Nishioka H, Tsukano M, Matsubara S, Usuku K, Mizuta H. Matrix changes in articular cartilage in the knee of patients with rheumatoid arthritis after biological therapy: 1-year follow-up evaluation by T2 and T1ρ MRI quantification. Clin Radiol 2018; 73:984.e11-984.e18. [PMID: 30072032 DOI: 10.1016/j.crad.2018.06.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023]
Abstract
AIM To estimate the morphological changes in the articular cartilage of the knees of patients with rheumatoid arthritis treated with biological disease-modifying anti-rheumatic drugs (bDMARDs). MATERIALS AND METHODS Cartilage-specific magnetic resonance imaging (MRI) results, including T2 and T1ρ mapping of the femorotibial joint of 17 patients, were obtained before and 1 year after starting treatment with bDMARDs. Regions of interest were selected on the sagittal images of the cartilage of the medial and lateral femoral condyles (MFC, LFC) and the tibial plateau (MTP, LTP). Cartilage thickness, T2, and T1ρ were measured, and the correlations of their changes were evaluated. RESULTS The mean changes in cartilage thickness tended to decrease in all four condyles, and the rate was significant in the MFC. T2 and T1ρ tended to increase, and T2 in the MFC significantly increased. Changes in cartilage thickness after 1 year showed a moderate correlation with the baseline T2 in the MFC as well as changes in T2 in the MTP. CONCLUSIONS Decreasing cartilage thickness and matrix changes appeared in the MFC after 1 year of treatment with bDMARDs. Microstructural damage of the cartilage at baseline is a predictor for further cartilage damage in the knee joint, even if treatment with bDMARDs is effective.
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Affiliation(s)
- J Hirose
- Department of Orthopedic Surgery, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - H Nishioka
- Department of Orthopedic Surgery, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - M Tsukano
- Department of Orthopaedic Surgery, Kumamoto Orthopaedic Hospital, 1-15-7 Kuhonji, Chuo-ku, Kumamoto 862-0976, Japan
| | - S Matsubara
- Center for Arthritis and Clinical Rheumatology, Matsubara Clinic, 5-3-15 Tsukide, Higashi-ku, Kumamoto 862-0920, Japan
| | - K Usuku
- Department of Medical Information Science and Administration Planning, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - H Mizuta
- Department of Orthopedic Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
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Matsubara S. Pre-pregnancy cardiovascular indices and birth outcomes of subsequent pregnancies: a ‘sequential stress test’ revealing hidden cardiovascular weakness? BJOG 2018; 125:1135. [DOI: 10.1111/1471-0528.15181] [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: 11/30/2022]
Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynaecology; Jichi Medical University; Tochigi Japan
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Matsubara S. Maternal beta2-sympathomimetic administration for fetal atrioventricular block: some additions and concerns. CLIN EXP OBSTET GYN 2018. [DOI: 10.12891/ceog4221.2018] [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: 11/01/2022]
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Ida T, Fujiwara H, Matsubara S, Taniguchi Y, Kohyama A. Salpingectomy for tubal sterilization at cesarean section: no extra time and no extra bleeding compared with tubal ligation. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3696.2017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Singu T, Mizutani H, Matsubara S, Naganuma M, Ikeno K, Inatomi Y, Yonehara T, Ando Y. Selection of direct oral anticoagulants for secondary prevention may shorten the length of hospital stay in patients with cardioembolic stroke due to non-valvular atrial fibrillation. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2815] [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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19
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Matsubara S, Bokuda K, Koide R, Asano Y, Morishima R, Miyamoto K, Sugaya K, Komori T, Suzuki S, Nishino I. Mitophagy in immune mediated necrotizing myopathy associated with anti-HMGCR autoantibodies. Ultrastructural and immunohistochemical studies. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3187] [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: 11/28/2022]
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Takahashi H, Usui R, Suzuki H, Baba Y, Suzuki T, Kuwata T, Ohkuchi A, Matsubara S. Uterine-fundal hypoechoic mass: a possible ultrasound sign for cesarean scar pregnancy. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3258.2017] [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: 11/01/2022]
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21
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Aoyagi Y, Park S, Matsubara S, Honda Y, Amamoto R, Kushiro A, Miyazaki K, Shephard R. Habitual intake of fermented milk products containing Lactobacillus casei strain Shirota and a reduced risk of hypertension in older people. Benef Microbes 2017; 8:23-29. [DOI: 10.3920/bm2016.0135] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This study investigated relationships between the frequent intake of fermented milk products containing Lactobacillus casei strain Shirota (LcS) and the onset of hypertension (resting systemic pressure ≥140 mmHg [systolic]/≥90 mmHg [diastolic], a doctor’s diagnosis and/or antihypertensive medicine use) during a 5-year period in 352 communityliving Japanese aged 65 to 93 years (125 men and 227 women). Initially normotensive subjects were divided into two groups (n=254 and n=98) on the basis of their intake of fermented milk products (<3 or ≥3 times/week, respectively), as estimated during an interview by a certified nutritionist. The incidence of hypertension over the 5-year interval was significantly lower in those who took fermented milk products ≥3 rather than <3 times/week (6.1 vs 14.2%, P=0.037). A multivariate-adjusted proportional hazards model predicted that blood pressures were significantly more likely to remain normal over 5 years in subjects who took ≥3 fermented milk products rather than <3 times/ week (relative risk 0.398 [95% confidence interval 0.167-0.948], P=0.037). These results suggest that after adjustment for potential confounders, the risk of developing hypertension is substantially lower in elderly people who take fermented milk products containing LcS at least 3 times a week.
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Affiliation(s)
- Y. Aoyagi
- Exercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
| | - S. Park
- Exercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
| | - S. Matsubara
- Food Research Department, Yakult Central Institute, 11 Izumi 5-chome, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Y. Honda
- Food Research Department, Yakult Central Institute, 11 Izumi 5-chome, Kunitachi-shi, Tokyo 186-8650, Japan
| | - R. Amamoto
- Food Research Department, Yakult Central Institute, 11 Izumi 5-chome, Kunitachi-shi, Tokyo 186-8650, Japan
| | - A. Kushiro
- Microbiological Research Department, Yakult Central Institute, 11 Izumi 5-chome, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K. Miyazaki
- Food Research Department, Yakult Central Institute, 11 Izumi 5-chome, Kunitachi-shi, Tokyo 186-8650, Japan
| | - R.J. Shephard
- Faculty of Kinesiology and Physical Education, University of Toronto, 55 Harbord Street, Toronto, ON M5S 2W6, Canada
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Takahashi H, Usui R, Suzuki H, Baba Y, Suzuki T, Kuwata T, Ohkuchi A, Matsubara S. Uterine-fundal hypoechoic mass: a possible ultrasound sign for cesarean scar pregnancy. CLIN EXP OBSTET GYN 2017; 44:88-92. [PMID: 29714873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE OF INVESTIGATION Cesarean scar pregnancy (CSP) is a life-threatening condition that requires early pregnancy termination. Its early ultrasound diagnosis is clinically important; however, previous studies focused on the CSP site itself. The present study was conducted to investigate the authors' clinical impression that a uterine-fundal hypoechoic mass is more frequently observed in CSP. Such a finding, if confirmed, may contribute to ultrasound diagnosis of CSP. The authors also determined the relationship between the treatment strategy and outcome, with special emphasis on conditions eventually requiring uterine artery embolization (UAE). MATERIALS AND METHODS This was a case-control study of CSP, and the authors analyzed all 14 women that were treated in this single tertiary institute over a period of ten years. Control subjects consisted of all pregnant women with prior cesarean section (CS) but no CSP. RESULTS Patients with CSP were significantly more likely to have a hypoechoic mass than controls (42.9 vs. 15.4%, respectively; p = 0.028). On confining results to a "fundal" hypoechoic mass, only CSP(+) patients showed it (CSP vs. control: 28.6 vs. 0%, respectively; p < 0.001). Six (43%: 6/14) received UAE: four following vaginal evacuation (artificial or spontaneous), and two for bleeding after methotrexate (MTX) treatment. CONCLUSION Patients with CSP more frequently had a uterine-fundal hypoechoic mass, whose detection may trigger a detailed observation of the CSP site, possibly leading to CSP diagnosis.
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Ida T, Goto T, Motoi T, Nagai I, Matsubara S, Fujiwara H, Kohyama A. Surgical removal of an isolated femoral metastasis of uterine cervical squamous cell carcinoma: a case report and review of the literature. EUR J GYNAECOL ONCOL 2017; 38:122-125. [PMID: 29767879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A bone metastasis from uterine cervical cancer normally indicates short life expectancy. Resection of the lesion is therefore palliative. The authors consider herein whether surgical resection can promote disease control while improving quality of life. A 33-year-old woman -presenting FIGO Stage IB 1 uterine cervical squamous cell carcinoma underwent a radical hysterectomy and pelvic irradiation. Twenty-two-months later, a solitary femoral metastasis was detected. Given the pain, imminent bone fracture, the patient's relative youth, absence of other metastases, and complete control of the primary lesion, wide excision of the lesion, and reconstruction were performed. Sixteen months later, she was disease-free and ambulatory using a cane. The findings of both the present case and the review showed that patients were disease-free for over one year after surgery, suggesting that resection may assist disease control as well as improve patients' quality of life.
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Yamazaki E, Matsubara S, Yamada I. Effect of Gd-DTPA and/or Magnetic Field and Radiofrequency Exposure on Sister Chromatid Exchange in Human Peripheral Lymphocytes. Acta Radiol 2016. [DOI: 10.1177/028418519303400615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The effects of a magnetic field, radiofrequency, and gadolinium diethylenetriaminepentaacetic acid (Gd-DTPA) on the sister chromatid exchange (SCE) in human peripheral lymphocytes were investigated. Whole blood was taken from a nonsmoker and samples were exposed to magnetic force (1.5 T) alone, and to a magnetic force combined with radiofrequency waves (63.86 MHz, specific absorption rate, SAR, 0.4 W/kg). Gd-DTPA was then added to other blood samples in varying amounts and concentrations. After exposure to the conditions described above, these blood samples were cultured for 69 hours. Slides were made for an SCE evaluation. As the concentration of Gd-DTPA added to the blood increased, the SCE frequency also increased. However, the addition of Gd-DTPA at the clinical concentrations normally used did not affect the SCE frequency.
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Satoh K, Matsubara S, Hondoh H, Nagahiro S. Intracranial Aneurysm Embolization Using Interlocking Detachable Coils. Interv Neuroradiol 2016; 3 Suppl 2:125-8. [DOI: 10.1177/15910199970030s226] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/1997] [Accepted: 09/18/1997] [Indexed: 11/17/2022] Open
Abstract
The relationship between volume embolization ratio and coil compaction on the intracranial aneurysm occluded using interlocking detachable coils (IDCs) was determined. From February 1994 to October 1996, 7 intracranial aneurysms were embolized using IDCs. Aneurysm capacity (volume) was calculated assuming that aneurysms are ellipsoid of the diameter in 3 planes. Coil volume was calculated assuming that IDCs are cylinders of primary coil. Coil compaction was observed in aneurysms embolized at a volume embolization ratio under 25%. There was no coil compaction in aneurysms embolized at a volume embolization ratio of over 25%. Measurement of the volume embolization ratio is useful to predict coil compaction. Intracranial aneurysms should be embolized at a volume embolization ratio of 25–33%.
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Affiliation(s)
- K. Satoh
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima
| | - S. Matsubara
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima
| | - H. Hondoh
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima
| | - S. Nagahiro
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima
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Satoh K, Satomi J, Matsubara S, Nagahiro S. Measurement of Volume Ratio to Predict Coil Compaction, on Aneurysmal Embolization. Interv Neuroradiol 2016; 4 Suppl 1:179-82. [DOI: 10.1177/15910199980040s136] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/1998] [Accepted: 08/25/1998] [Indexed: 11/16/2022] Open
Abstract
The relationship between volume embolization ratio and coil compaction on the intracranial aneurysms occluded using Guglielmi detachable coils (GDCs) was determined. From March 1997 to February 1998, 38 intracranial aneurysms were embolized using GDCs. Aneurysm volume was calculated assuming that aneurysms are ellipsoids of the diameter in three planes. Coil volume was calculated assuming that detachable coils are cylinder of primary coil. Coil compaction was observed in aneurysms embolized at a volume embolization ratio under 21%. There was no coil compaction in aneurysms embolized at a volume embolization ratio of over 21%. Measurement of the volume embolization ratio is useful to predict the coil compaction. Intracranial aneurysms should be embolized at a volume embolization ratio of 25–33%.
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Affiliation(s)
- K. Satoh
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima, Japan
| | - J. Satomi
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima, Japan
| | - S. Matsubara
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima, Japan
| | - S. Nagahiro
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima, Japan
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27
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Matsubara S, Takahashi H, Horie K, Lefor AK, Fujiwara H. Caesarean hysterectomy for placenta accreta: paracervix should be divided sequentially, not en masse. Eur J Obstet Gynecol Reprod Biol 2016; 201:227-8. [PMID: 27129744 DOI: 10.1016/j.ejogrb.2016.03.047] [Citation(s) in RCA: 2] [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: 02/12/2016] [Accepted: 03/30/2016] [Indexed: 12/01/2022]
Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynaecology, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - H Takahashi
- Department of Obstetrics and Gynaecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - K Horie
- Department of Obstetrics and Gynaecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - A K Lefor
- Department of Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - H Fujiwara
- Department of Obstetrics and Gynaecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
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Matsubara S, Takahashi H, Takei Y, Lefor AK. Re: Abnormally invasive placenta - prevalence, risk factors and antenatal suspicion: results from a large population-based pregnancy cohort study in the Nordic countries. BJOG 2016; 123:1031-2. [DOI: 10.1111/1471-0528.13759] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2015] [Indexed: 11/30/2022]
Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynecology; Jichi Medical University; Tochigi Japan
| | - H Takahashi
- Department of Obstetrics and Gynecology; Jichi Medical University; Tochigi Japan
| | - Y Takei
- Department of Obstetrics and Gynecology; Jichi Medical University; Tochigi Japan
| | - AK Lefor
- Department of Surgery; Jichi Medical University; Tochigi Japan
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29
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Matsubara S, Baba Y, Morisawa H, Takahashi H, Lefor A. Maintaining the position of a Bakri balloon after caesarean section for placenta previa using an abdominal traction stitch. Eur J Obstet Gynecol Reprod Biol 2016; 198:177-178. [DOI: 10.1016/j.ejogrb.2016.01.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 12/30/2015] [Accepted: 01/20/2016] [Indexed: 11/24/2022]
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30
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Yamada T, Kawakami S, Yoshida Y, Kawamura H, Ohta S, Abe K, Hamada H, Dohi S, Ichizuka K, Takita H, Baba Y, Matsubara S, Mochizuki J, Unno N, Maegawa Y, Maeda M, Inubashiri E, Akutagawa N, Kubo T, Shirota T, Oda Y, Yamada T, Yamagishi E, Nakai A, Fuchi N, Masuzaki H, Urabe S, Kudo Y, Nomizo M, Sagawa N, Maeda T, Kamitomo M, Kawabata K, Kataoka S, Shiozaki A, Saito S, Sekizawa A, Minakami H. Influenza 2014–2015 among pregnant Japanese women: primiparous vs multiparous women. Eur J Clin Microbiol Infect Dis 2016; 35:665-71. [DOI: 10.1007/s10096-016-2585-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/13/2016] [Indexed: 11/28/2022]
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31
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Matsubara S. Comment on “vaginal bilateral cervical lips suture in combination with intrauterine Foley catheter to arrest postpartum hemorrhage”. CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog3249.2016] [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: 11/01/2022]
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32
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Matsubara S. Comment on "vaginal bilateral cervical lips suture in combination with intrauterine Foley catheter to arrest postpartum hemorrhage". CLIN EXP OBSTET GYN 2016; 43:7-8. [PMID: 27048008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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33
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Shibayama Y, Kuwata T, Yamaguchi J, Matsumoto M, Watanabe M, Nakano R, Kai K, Watanabe M, Watanabe R, Ohkuchi A, Matsubara S. Changes in standing body sway of pregnant women after long-term bed rest. J OBSTET GYNAECOL 2015; 36:479-82. [PMID: 26471310 DOI: 10.3109/01443615.2015.1086983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Pregnant women tend to fall and increased body postural instability, namely body sway, may be one of the causative factors. We had a clinical impression that pregnant women after long-term bed rest tend to fall. We hypothesised that such women may show increased body sway, which we attempted to determine. Pregnant women (n = 161) were divided into three groups: (i) women with preterm labour after 2-week bed rest, (ii) those after 4-week bed rest, and (iii) those without bed rest or preterm labour. Body sway was analysed using stabilometry, that is, computed analysis of movement of the centre of gravity. The 3 groups fundamentally showed the same stabilometric measurements. Women with oedema showed greater medial-lateral sway than those without it. Factors other than oedema yielded no differences in stabilometric parameters. Long-term bed rest fundamentally did not increase body sway to the extent that stabilometry could reveal it. It may be prudent to consider that pregnant women with oedema tend to fall.
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Affiliation(s)
- Y Shibayama
- a Department of Midwifery and Nursing , Jichi Medical University Hospital , Tochigi , Japan
| | - T Kuwata
- b Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan
| | - J Yamaguchi
- a Department of Midwifery and Nursing , Jichi Medical University Hospital , Tochigi , Japan
| | - M Matsumoto
- a Department of Midwifery and Nursing , Jichi Medical University Hospital , Tochigi , Japan
| | - M Watanabe
- a Department of Midwifery and Nursing , Jichi Medical University Hospital , Tochigi , Japan
| | - R Nakano
- a Department of Midwifery and Nursing , Jichi Medical University Hospital , Tochigi , Japan
| | - K Kai
- c Department of Midwifery and Nursing , Saitama Medical Center Hospital, Jichi Medical University , Saitama , Japan
| | - M Watanabe
- a Department of Midwifery and Nursing , Jichi Medical University Hospital , Tochigi , Japan
| | - R Watanabe
- d School of Nursing, Jichi Medical University , Tochigi , Japan
| | - A Ohkuchi
- b Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan.,e Support Center for Clinical Investigation, Jichi Medical University , Tochigi , Japan
| | - S Matsubara
- b Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan.,e Support Center for Clinical Investigation, Jichi Medical University , Tochigi , Japan
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Takahashi H, Ohkuchi A, Kuwata T, Usui R, Takahashi S, Matsubara S. Congenital mesoblastic nephroma: Its diverse clinical features – A literature review with a case report. J OBSTET GYNAECOL 2015; 36:340-4. [DOI: 10.3109/01443615.2015.1060203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Matsubara S, Takahashi H, Lefor AK. A novel hemostatic technique during cesarean section for placenta previa: combining "cervical inversion" and "holding the cervix". Minerva Ginecol 2015; 67:488-489. [PMID: 26491828] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- S Matsubara
- Department of Obstetric and Gynecology, Jichi Medical University, Tochigi, Japan -
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36
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Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Japan
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37
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Eguchi K, Ohmaru T, Ohkuchi A, Hirashima C, Takahashi K, Suzuki H, Kario K, Matsubara S, Suzuki M. Ambulatory BP monitoring and clinic BP in predicting small-for-gestational-age infants during pregnancy. J Hum Hypertens 2015; 30:62-7. [DOI: 10.1038/jhh.2015.20] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 12/07/2014] [Accepted: 01/08/2015] [Indexed: 11/09/2022]
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Matsubara S, Baba Y. Transverse uterine fundal incision for placenta praevia with accreta: concern regarding its 'overuse'. BJOG 2015; 122:448. [PMID: 25623586 DOI: 10.1111/1471-0528.13256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2014] [Indexed: 11/30/2022]
Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi, Japan
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Nagayama S, Matsubara S, Horie K, Kuwata T, Ohkuchi A, Usui R, Nakata M, Suzuki M. The ovarian artery: an unusual feeding artery of uterine artery pseudoaneurysm necessitating repetitive transarterial embolisation. J OBSTET GYNAECOL 2014; 35:656-7. [PMID: 25546526 DOI: 10.3109/01443615.2014.991295] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- S Nagayama
- a Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan
| | - S Matsubara
- a Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan
| | - K Horie
- a Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan
| | - T Kuwata
- a Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan
| | - A Ohkuchi
- a Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan
| | - R Usui
- a Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan
| | - M Nakata
- b Department of Radiology , Jichi Medical University , Tochigi , Japan
| | - M Suzuki
- a Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan
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Yamada T, Abe K, Baba Y, Inubashiri E, Kawabata K, Kubo T, Maegawa Y, Fuchi N, Nomizo M, Shimada M, Shiozaki A, Hamada H, Matsubara S, Akutagawa N, Kataoka S, Maeda M, Masuzaki H, Sagawa N, Nakai A, Saito S, Minakami H. Vaccination during the 2013-2014 influenza season in pregnant Japanese women. Eur J Clin Microbiol Infect Dis 2014; 34:543-8. [PMID: 25311988 DOI: 10.1007/s10096-014-2259-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 09/29/2014] [Indexed: 11/24/2022]
Abstract
This questionnaire survey was conducted at 11 hospitals in Japan to determine vaccination coverage against seasonal influenza and the prevalence rate of influenza among pregnant Japanese women. Of 2,808 postpartum women who gave birth at the 11 hospitals during the study period from March 1, 2014, to July 31, 2014, 1,713 (61 %) participated in this study and 876 (51 %) reported having received vaccination against influenza in or after October 2013. Women aged <25 years had a significantly lower vaccination rate than those aged ≥25 years (31 % vs. 53 %, respectively; p = 0.0000). Eighty-seven (5.1 %) and 1,626 (94.9 %) women did and did not contract influenza, respectively. Although prior birth did not affect overall vaccination coverage (50 % for primiparous vs. 53 % for multiparous), multiparous women had a significantly higher rate of contracting influenza than primiparous women, irrespective of vaccination status (5.6 % vs. 2.2 % [p = 0.0216] and 9.7 % vs. 3.5 % [p = 0.0003] for women with and without vaccination, respectively). The 2013-2014 vaccination program significantly reduced the influenza infection rate by 35 % (3.9 % vs. 6.3 % for women with and without vaccination, respectively; p = 0.0272). Seventy-two (83 %) of the 87 women took antiviral agents for the treatment of influenza and two (2.3 %) required hospitalization. These results suggested that pregnant Japanese women had a high level of concern regarding seasonal influenza. However, campaigns targeting young pregnant Japanese women, as well as multiparous women, for vaccination are needed in order to further reduce the incidence of influenza among pregnant Japanese women.
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Affiliation(s)
- T Yamada
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, N15W7, Kita-ku, Sapporo, 060-8638, Japan,
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Matsubara S, Ohkuchi A, Kamesaki T, Ishikawa S, Nakamura Y, Matsumoto M. Supporting rural remote physicians to conduct a study and write a paper: experience of Clinical Research Support Team (CRST)-Jichi. Rural Remote Health 2014; 14:2883. [PMID: 25270218] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
CONTEXT Jichi Medical University (JMU) is the only medical school in Japan that is devoted solely to producing rural and remote doctors. To support research activities of its graduates, mainly young graduates under obligatory rural service, JMU established a voluntary team, Clinical Research Support Team (CRST)-Jichi. ISSUES CRST-Jichi consists of current and past JMU faculty members; all of them are specialists of certain medical fields and many are also graduates of JMU who have completed rural service. A client who asks the CRST for advice on study design or editing a paper emails the CRST to ask for support in conducting a study. Then, core members of the CRST assign the job to a registered specialist of the corresponding topic, who becomes a 'responsible supporter' and continues to support the client until a paper has been published. During the 3 years from July 2010, 12 English papers have been published in international peer-review journals, two Japanese papers in domestic journals, and 13 studies are in progress. Ninety-one percent of clients were satisfied with the service, and eighty-two percent considered their papers would not have been published if they had not used the service. Sense of commitment, existence of JMU-graduated specialists, and quick response were reported by clients as major strengths of CRST-Jichi. LESSONS LEARNED The experience of CRST-Jichi can potentially be transferred to not only other Japanese medical schools with rural doctor production programs, which are now rapidly increasing as part of a national policy, but also rural medical education systems in other countries.
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Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - A Ohkuchi
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - T Kamesaki
- Center for Community Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - S Ishikawa
- Center for Medical Education, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - Y Nakamura
- Department of Public Health, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - M Matsumoto
- Department of Community-Based Medical System, Faculty of Medicine, Hiroshima University, Hiroshima, Japan.
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Affiliation(s)
- S Matsubara
- Department of Obstetrics and Gynecology, Jichi Medical University , Tochigi , Japan
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Kuwata T, Takahashi H, Matsubara S. 'Stained-glass' sign for placental mesenchymal dysplasia. Ultrasound Obstet Gynecol 2014; 43:355. [PMID: 24151208 DOI: 10.1002/uog.13230] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 10/10/2013] [Accepted: 10/15/2013] [Indexed: 06/02/2023]
Affiliation(s)
- T Kuwata
- Department of Obstetrics and Gynecology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
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Homma T, Nagaoka U, Kawata A, Mochizuki Y, Kawakami H, Maruyama H, Matsubara S, Komori T. Neuropathological features of Japanese familial amyotrophic lateral sclerosis with p.N352S mutation inTARDBP. Neuropathol Appl Neurobiol 2014; 40:231-6. [DOI: 10.1111/nan.12090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/02/2013] [Indexed: 12/13/2022]
Affiliation(s)
- T. Homma
- Department of Laboratory Medicine and Pathology (Neuropathology); Tokyo Metropolitan Neurological Hospital; Tokyo Japan
- Department of Pathology; Saitama Medical University; Saitama Japan
| | - U. Nagaoka
- Department of Neurology; Tokyo Metropolitan Neurological Hospital; Tokyo Japan
| | - A. Kawata
- Department of Neurology; Tokyo Metropolitan Neurological Hospital; Tokyo Japan
| | - Y. Mochizuki
- Department of Laboratory Medicine and Pathology (Neuropathology); Tokyo Metropolitan Neurological Hospital; Tokyo Japan
- Department of Neurology; Tokyo Metropolitan Kita Medical and Rehabilitation Center for the Disabled; Tokyo Japan
| | - H. Kawakami
- Department of Epidemiology, Research Institute for Radiation Biology and Medicine; Hiroshima University; Hiroshima Japan
| | - H. Maruyama
- Department of Epidemiology, Research Institute for Radiation Biology and Medicine; Hiroshima University; Hiroshima Japan
| | - S. Matsubara
- Department of Neurology; Tokyo Metropolitan Neurological Hospital; Tokyo Japan
| | - T. Komori
- Department of Laboratory Medicine and Pathology (Neuropathology); Tokyo Metropolitan Neurological Hospital; Tokyo Japan
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Nakamura T, Baba S, Yamamura Y, Tsuruta T, Matsubara S, Tomoda K, Tsukano M. Combined treatment with cyclophosphamide and prednisolone is effective for secondary amyloidosis with SAA1γ/γ genotype in a patient with rheumatoid arthritis. Mod Rheumatol 2014; 10:160-4. [DOI: 10.3109/s101650070024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Matsubara S, Usui R, Ohkuchi A. Controversy on another possible risk of preterm delivery after cervical conization: time interval between conization and conception. EUR J GYNAECOL ONCOL 2014; 35:5-6. [PMID: 24654451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Takahashi H, Takizawa T, Matsubara S, Ohkuchi A, Kuwata T, Usui R, Matsumoto H, Sato Y, Fujiwara H, Okamoto A, Suzuki M, Takizawa T. Extravillous trophoblast cell invasion is promoted by the CD44-hyaluronic acid interaction. Placenta 2013; 35:163-70. [PMID: 24439029 DOI: 10.1016/j.placenta.2013.12.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 12/13/2013] [Accepted: 12/19/2013] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Extravillous trophoblast (EVT) cell invasion plays a crucial role in establishment of successful pregnancy. CD44, a cell-surface receptor for hyaluronic acid (HA), plays a key role in HA-mediated remodeling and degradation that triggers cancer cell invasion. However, few studies have reported on the expression or functions of CD44 in human EVT cells. We hypothesized that CD44-HA interaction was involved in invasion by EVT cells. METHODS To test our hypothesis, we conducted in situ examinations of CD44 and HA expression in the human first-trimester placenta. We also assessed the methylation status of CD44 promoter and exon 1 regions in EVT cells. Finally, we conducted transwell cell invasion assays using EVT cell lines and EVT cells isolated from first-trimester human villous explant cultures. RESULTS AND DISCUSSION EVT cells, but not villous trophoblast cells, in the first-trimester placenta expressed CD44. HA was strongly expressed in adventitia surrounding the spiral uterine arterial walls of the decidua. The extent of demethylation of CD44 promoter and exon 1 CpG islands was increased in EVT cells compared to those of first-trimester chorionic villi (including villous trophoblast cells), suggesting that CD44 expression was, at least in part, associated with methylation status. Data from transwell cell invasion assay with siRNA knockdown of CD44 revealed that CD44 expression significantly promoted invasion by EVT cells in an HA-dependent manner. CONCLUSIONS The discovery of a CD44-HA interaction between EVT cells and the extracellular matrix contributes to our understanding of the mechanism underlying invasion by EVT cells.
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Affiliation(s)
- H Takahashi
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329-0498, Japan; Department of Molecular Medicine and Anatomy, Nippon Medical School, 1-1-5 Sendagi, Tokyo 113-8602, Japan
| | - T Takizawa
- Department of Molecular Medicine and Anatomy, Nippon Medical School, 1-1-5 Sendagi, Tokyo 113-8602, Japan
| | - S Matsubara
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329-0498, Japan
| | - A Ohkuchi
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329-0498, Japan
| | - T Kuwata
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329-0498, Japan
| | - R Usui
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329-0498, Japan
| | - H Matsumoto
- Department of Obstetrics and Gynecology, Kyoto University Graduate School of Medicine, Kyoto 606-8501, Japan
| | - Y Sato
- Department of Obstetrics and Gynecology, Kyoto University Graduate School of Medicine, Kyoto 606-8501, Japan
| | - H Fujiwara
- Department of Obstetrics and Gynecology, Graduate School of Medicine Science, Kanazawa University, Ishikawa 920-8641, Japan
| | - A Okamoto
- Department of Obstetrics and Gynecology, Jikei University School of Medicine, Tokyo 105-0003, Japan
| | - M Suzuki
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329-0498, Japan
| | - T Takizawa
- Department of Molecular Medicine and Anatomy, Nippon Medical School, 1-1-5 Sendagi, Tokyo 113-8602, Japan.
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Homma T, Nagaoka U, Kawata A, Mochizuki Y, Kawakami H, Maruyama H, Matsubara S, Komori T. Authors' reply to Drs M van Blitterswijk, R Rademakers and LH van den Berg. Neuropathol Appl Neurobiol 2013; 40:359-60. [PMID: 24304300 DOI: 10.1111/nan.12105] [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] [Received: 11/22/2013] [Accepted: 12/02/2013] [Indexed: 11/28/2022]
Affiliation(s)
- T Homma
- Department of Laboratory Medicine and Pathology (Neuropathology), Tokyo Metropolitan Neurological Hospital, Tokyo, Japan; Department of Pathology, Saitama Medical University, Saitama, Japan
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Togashi T, Takahashi E, Midorikawa K, Aoyama M, Yamakawa K, Sato T, Iwasaki A, Owada S, Yamanouchi K, Hara T, Matsubara S, Ohshima T, Otake Y, Tamasaku K, Tanaka H, Tanaka T, Tomizawa H, Watanabe T, Yabashi M, Ishikawa T. Extreme ultraviolet free electron laser seeded by high-order harmonic. Radiat Phys Chem Oxf Engl 1993 2013. [DOI: 10.1016/j.radphyschem.2013.06.013] [Citation(s) in RCA: 2] [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: 11/28/2022]
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Matsubara S. Caesarean hysterectomy for placenta praevia accreta: Filling the bladder technique to identify an appropriate bladder separation site. J OBSTET GYNAECOL 2013; 33:163-4. [DOI: 10.3109/01443615.2012.740525] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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