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Hangai M, Kawaguchi T, Takagi M, Matsuo K, Jeon S, Chiang CWK, Dewan AT, De Smith AJ, Imamura T, Okamoto Y, Saito AM, Deguchi T, Kubo M, Tanaka Y, Ayukawa Y, Hori T, Ohki K, Kiyokawa N, Inukai T, Arakawa Y, Mori M, Hasegawa D, Tomizawa D, Fukushima H, Yuza Y, Noguchi Y, Taneyama Y, Ota S, Goto H, Yanagimachi M, Keino D, Koike K, Toyama D, Nakazawa Y, Nakamura K, Moriwaki K, Sekinaka Y, Morita D, Hirabayashi S, Hosoya Y, Yoshimoto Y, Yoshihara H, Ozawa M, Kobayashi S, Morisaki N, Gyeltshen T, Takahashi O, Okada Y, Matsuda M, Tanaka T, Inazawa J, Takita J, Ishida Y, Ohara A, Metayer C, Wiemels JL, Ma X, Mizutani S, Koh K, Momozawa Y, Horibe K, Matsuda F, Kato M, Manabe A, Urayama KY. Genome-wide assessment of genetic risk loci for childhood acute lymphoblastic leukemia in Japanese patients. Haematologica 2024; 109:1247-1252. [PMID: 37881853 PMCID: PMC10985430 DOI: 10.3324/haematol.2023.282914] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023] Open
Abstract
Not available.
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Affiliation(s)
- Mayumi Hangai
- Department of Social Medicine, National Center for Child Health and Development, Tokyo, Japan; Department of Pediatrics, The University of Tokyo, Tokyo
| | - Takahisa Kawaguchi
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto
| | - Masatoshi Takagi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya
| | - Soyoung Jeon
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles
| | - Charleston W K Chiang
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, USA; Department of Quantitative and Computational Biology, University of Southern California, Los Angeles
| | - Andrew T Dewan
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven
| | - Adam J De Smith
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles
| | - Toshihiko Imamura
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Kyoto
| | - Yasuhiro Okamoto
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima
| | - Akiko M Saito
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya
| | - Takao Deguchi
- Children's Cancer Center, National Center for Child Health and Development, Tokyo
| | - Michiaki Kubo
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Kanagawa
| | - Yoichi Tanaka
- Division of Medicinal Safety Science, National Institute of Health Sciences, Kawasaki
| | - Yoko Ayukawa
- Department of Social Medicine, National Center for Child Health and Development, Tokyo
| | - Toshinari Hori
- Department of Pediatrics, Aichi Medical University Hospital, Nagoya
| | - Kentaro Ohki
- Department of Pediatric Hematology and Oncology Research, National Center for Child Health and Development, Tokyo
| | - Nobutaka Kiyokawa
- Department of Pediatric Hematology and Oncology Research, National Center for Child Health and Development, Tokyo
| | - Takeshi Inukai
- Department of Pediatrics, University of Yamanashi, Yamanashi
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama
| | - Daisuke Hasegawa
- Department of Pediatrics, St. Luke's International Hospital, Tokyo
| | - Daisuke Tomizawa
- Children's Cancer Center, National Center for Child Health and Development, Tokyo
| | - Hiroko Fukushima
- Department of Child Health, Faculty of Medicine, University of Tsukuba, Tsukuba
| | - Yuki Yuza
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo
| | - Yasushi Noguchi
- Department of Pediatrics, Japanese Red Cross Narita Hospital, Chiba
| | - Yuichi Taneyama
- Department of Hematology/Oncology, Chiba Children's Hospital, Chiba
| | - Setsuo Ota
- Department of Pediatrics, Teikyo University Chiba Medical Center, Chiba
| | - Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama
| | | | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama
| | - Kazutoshi Koike
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito
| | - Daisuke Toyama
- Division of Pediatrics, Showa University Fujigaoka Hospital, Yokohama
| | - Yozo Nakazawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto
| | - Kozue Nakamura
- Department of Pediatrics, Teikyo University Hospital, Tokyo
| | - Koichi Moriwaki
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Saitama
| | - Yujin Sekinaka
- Department of Pediatrics, National Defense Medical College, Saitama
| | - Daisuke Morita
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto
| | | | - Yosuke Hosoya
- Department of Pediatrics, St. Luke's International Hospital, Tokyo
| | - Yuri Yoshimoto
- Department of Pediatrics, National Center for Global Health and Medicine, Tokyo
| | - Hiroki Yoshihara
- Department of Pediatrics, St. Luke's International Hospital, Tokyo
| | - Miwa Ozawa
- Department of Pediatrics, St. Luke's International Hospital, Tokyo
| | - Shinobu Kobayashi
- Department of Social Medicine, National Center for Child Health and Development, Tokyo
| | - Naho Morisaki
- Department of Social Medicine, National Center for Child Health and Development, Tokyo
| | - Tshewang Gyeltshen
- Graduate School of Public Health, St. Luke's International University, Tokyo
| | - Osamu Takahashi
- Graduate School of Public Health, St. Luke's International University, Tokyo
| | - Yukinori Okada
- Department of Statistical Genetics, Graduate School of Medicine, Osaka University, Osaka, Japan; Department of Genome Informatics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Laboratory for Systems Genetics, RIKEN Center for Integrative Medical Sciences, Kanagawa
| | - Makiko Matsuda
- Department of Human Genetics and Disease Diversity, Tokyo Medical Dental University, Tokyo
| | - Toshihiro Tanaka
- Department of Human Genetics and Disease Diversity, Tokyo Medical Dental University, Tokyo
| | - Johji Inazawa
- Department of Molecular Cytogenetics, Tokyo Medical and Dental University, Tokyo
| | - Junko Takita
- Department of Pediatrics, Kyoto University Graduate School of Medicine, Kyoto
| | - Yasushi Ishida
- Pediatric Medical Center, Ehime Prefectural Central Hospital, Matsuyama
| | - Akira Ohara
- Department of Pediatrics, Toho University, Tokyo
| | - Catherine Metayer
- School of Public Health, University of California Berkeley, Berkeley, California
| | - Joseph L Wiemels
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles
| | - Xiaomei Ma
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven
| | - Shuki Mizutani
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama
| | - Yukihide Momozawa
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Kanagawa
| | - Keizo Horibe
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya
| | - Fumihiko Matsuda
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto
| | - Motohiro Kato
- Department of Pediatrics, The University of Tokyo, Tokyo
| | | | - Kevin Y Urayama
- Department of Social Medicine, National Center for Child Health and Development, Tokyo, Japan; Graduate School of Public Health, St. Luke's International University, Tokyo.
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Hosokawa T, Kuntaro D, Takei H, Arakawa Y, Kambe T, Kurihara J, Mochizuki N, Sato Y, Tanami Y, Oguma E. Assessing the Usefulness of Ultrasonography for the Diagnosis and Evaluation of Intra-Orbital Lesions in Pediatric Patients: A Retrospective Analysis. J Ultrasound Med 2024; 43:573-585. [PMID: 38124268 DOI: 10.1002/jum.16391] [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] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/26/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVES To assess the usefulness of ultrasonography in the diagnosis and evaluation of extraocular intra-orbital lesions in pediatric patients. METHODS Twenty-three pediatric patients with intra-orbital lesions who underwent both ultrasound and computed tomography/magnetic resonance imaging (CT/MRI) were included. The following parameters were evaluated using ultrasound: 1) lesion detection rate (presence or absence of lesions), 2) lesion characteristics, 3) lesion location (extraconal or intraconal), and 4) the lesion longest linear dimensions, and these were compared using Fisher's exact test and Mann-Whitney U test. RESULTS Two lesions could not be detected using ultrasound; in the other 21 cases, the lesion characteristics diagnosed by ultrasound were correct. Diagnostic accuracy of detection and characteristics assessment using ultrasound were 91.3% and 91.3%, respectively. The lesion location was not significantly different between the two groups (intraconal/extraconal in those detected using ultrasound versus those in the absence on ultrasound = 7/14 versus 0/2, P > .999); however, in two cases that were not detected on ultrasound, the lesions were located at extraconal. Lesions that were small in longest linear dimensions on CT/MRI were not detected using ultrasound (the longest linear dimensions in lesions detected using ultrasound versus that in the absence of ultrasound: 29.5 ± 8.2 [range, 13-46] versus 10 and 11 mm, P = .043). CONCLUSIONS Ultrasonography proved to be useful for visualizing and evaluating intra-orbital lesions except for lesions that were relatively small in size. Therefore, although ultrasound could not detect lesions located behind bone and bone invasion, it could be used for diagnosing and selecting treatment strategies for intra-orbital lesions.
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Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Deguchi Kuntaro
- Department of Infectious Diseases and Immunology, Saitama Children's Medical Center, Saitama, Japan
| | - Haruka Takei
- Department of Infectious Diseases and Immunology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology and Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Tomoka Kambe
- Division of Ophthalmology, Saitama Children's Medical Center, Saitama, Japan
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children's Medical Center, Saitama, Japan
| | - Naoto Mochizuki
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yumiko Sato
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Eiji Oguma
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
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Ishida H, Arakawa Y, Hasegawa D, Usami I, Hashii Y, Arai Y, Nishiwaki S, Keino D, Kato K, Sato M, Yoshida N, Ozawa Y, Okada K, Hidaka M, Yuza Y, Tanaka M, Watanabe K, Takita J, Kosaka Y, Fujita N, Tanaka J, Sato A, Atsuta Y, Imamura T. Reduced-intensity allogenic transplantation for children and adolescents with Philadelphia chromosome-positive acute lymphoblastic leukemia. Ann Hematol 2024; 103:843-854. [PMID: 38006571 DOI: 10.1007/s00277-023-05557-z] [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: 01/04/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
Survival rates of patients with Philadelphia chromosome-positive ALL (Ph+ALL) have improved considerably with the introduction of tyrosine kinase inhibitors (TKI); however, hematopoietic stem cell transplantation (HSCT) continues to play an important role. Reduced-intensity conditioning (RIC) regimens have been widely applied particularly for older patients, but their validity for children and adolescents with Ph+ALL has not been investigated. In this study, data from patients receiving HSCT for de novo Ph+ALL in first or second remission at ages younger than 25 years and with a history of pre-HSCT TKI therapy were retrospectively collected through the nationwide registry in Japan. In 265 patients who received myeloablative conditioning (MAC) and 33 patients receiving RIC, 5-year leukemia-free survival (LFS) rates were 67.3% and 79.8%, respectively (p = 0.142). Multivariate analysis of LFS, focusing on patients with good performance status, identified RIC as a significant prognostic factor for LFS (hazard ratio 0.32, p = 0.032), as well as older age, higher leukocyte count at diagnosis, and disease with additional chromosomal abnormalities. These trends were similar when we focused on patients who received prophylactic post-HSCT TKI treatment, as 5-year LFS was 81.0% for MAC and 84.4% for RIC (p = 0.748). In summary, HSCT with RIC regimen showed at least comparable LFS to HSCT with MAC regimen, and RIC was an independent favorable prognostic factor on multivariate analysis adjusting potential prognostic factors. While patient numbers were limited, our data suggest that RIC may be safely applied in this group, particularly combined with prophylactic post-HSCT TKI maintenance therapy.
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Affiliation(s)
- Hisashi Ishida
- Department of Pediatrics, Okayama University Hospital, Okayama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Daiichiro Hasegawa
- Department of Hematology and Oncology, Center of Childhood Cancer, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Ikuya Usami
- Department of Pediatric Hematology and Oncology, Hyogo Prefectural Amagasaki General Medical Center, Hyogo, Japan
| | - Yoshiko Hashii
- Department of Pediatrics, Osaka International Cancer Institute, Osaka, Japan
| | - Yasuyuki Arai
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Satoshi Nishiwaki
- Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Keisuke Kato
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Ibaraki, Japan
| | - Maho Sato
- Department of Hematology/Oncology, Osaka Women's and Children's Hospital, Izumi, Japan
| | - Nao Yoshida
- Department of Hematology and Oncology, Children's Medical Center, Japanese Red Cross Aichi Medical Center Nagoya First Hospital, Nagoya, Japan
| | - Yukiyasu Ozawa
- Department of Hematology, Japanese Red Cross Aichi Medical Center Nagoya First Hospital, Nagoya, Japan
| | - Keiko Okada
- Department of Pediatric Hematology/Oncology, Osaka City General Hospital, Osaka, Japan
| | - Moe Hidaka
- Department of Pediatrics, The University of Tokyo Hospital, Tokyo, Japan
| | - Yuki Yuza
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Masatsugu Tanaka
- Department of Hematology, Kanagawa Cancer Center, Yokohama, Japan
| | - Kenichiro Watanabe
- Department of Hematology and Oncology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Junko Takita
- Department of Pediatrics, Kyoto University Hospital, Kyoto, Japan
| | - Yoshiyuki Kosaka
- Department of Hematology and Oncology, Center of Childhood Cancer, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Naoto Fujita
- Department of Pediatrics, Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Junji Tanaka
- Department of Hematology, Tokyo Women's Medical University, Tokyo, Japan
| | - Atsushi Sato
- Department of Hematology and Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - Yoshiko Atsuta
- Japanese Data Center for Hematopoietic Cell Transplantation, Nagakute, Japan
- Department of Registry Science for Transplant and Cellular Therapy, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Toshihiko Imamura
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, 465, Kajiichou, Hirokouji Kawaramachidori, Kamigyo-ku, Kyoto, 602-8566, Japan.
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Yanagi M, Mori M, Honda M, Mitani Y, Seki M, Fukuoka K, Oshima K, Arakawa Y, Koh K. Nelarabine-containing salvage therapy and conditioning regimen in transplants for pediatric T-cell acute lymphoblastic leukemia and lymphoma. Int J Hematol 2024; 119:327-333. [PMID: 38302839 DOI: 10.1007/s12185-023-03701-z] [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: 02/21/2023] [Revised: 12/25/2023] [Accepted: 12/27/2023] [Indexed: 02/03/2024]
Abstract
Therapy for relapsed or refractory (r/r) T-cell acute lymphoblastic leukemia (T-ALL) and T-cell lymphoblastic lymphoma (T-LBL) in children is challenging, and new treatment methods are needed. We retrospectively analyzed eight patients with r/r T-ALL (five patients) and T-LBL (three patients) who were treated with nelarabine (NEL) plus etoposide, cyclophosphamide, and intrathecal therapy, administered 3 days apart. Five patients achieved a complete response, and the other three achieved a partial response (PR). All patients underwent hematopoietic stem cell transplantation (HSCT) after two cycles of treatment, except for one patient who received one cycle. Three patients who had previously received HSCT were treated with reduced-intensity conditioning regimens, including fludarabine, melphalan, and NEL; one survived for over 5 years after the second HSCT. Grade 2 neuropathy occurred in one patient, but other severe toxicities commonly associated with NEL were not observed during NEL administration in combination with chemotherapy. The 2-year overall survival and event-free survival rates were 60.0% and 36.5%, respectively. The addition of NEL to reinduction chemotherapy was useful in achieving remission and did not lead to excessive toxicity. In addition, a conditioning regimen, including NEL, appeared to be effective in patients who had previously undergone HSCT.
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Affiliation(s)
- Masato Yanagi
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan.
- Department of Hematology/Oncology for Children and Adolescents, Sapporo Hokuyu Hospital, Higashi-Sapporo 6-6, Shiroishi-ku, Sapporo, 003-0006, Japan.
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Mamoru Honda
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuichi Mitani
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Masafumi Seki
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Koichi Oshima
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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Kubota H, Arakawa Y, Mizushima Y, Irikura T, Watakabe M, Ishikawa T, Kaneko R, Honda M, Mitani Y, Fukuoka K, Mori M, Oshima K, Koh K. Efficacy of off-the-shelf bone marrow mesenchymal stem cells for pediatric steroid-refractory acute graft-versus-host disease. Blood Cell Ther 2024; 7:1-9. [PMID: 38486829 PMCID: PMC10937086 DOI: 10.31547/bct-2023-020] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 09/04/2023] [Indexed: 03/17/2024]
Abstract
Introduction Temcell is a mesenchymal stem cell (MSC) product approved for steroid-refractory acute graft-versus-host disease (SR-aGVHD) in Japan. However, reports regarding Temcell's efficacy in pediatric patients have been scarce, and the appropriate use of MSC therapy against pediatric SR-aGVHD also remains to be determined. Patients and Methods We retrospectively assessed a cohort of pediatric patients treated with Temcell for SR-aGVHD following allogeneic hematopoietic transplantation. MSCs were infused intravenously at a dose of 2 × 106 cells/kg according to the manufacturer's instructions. Results Twelve patients received eighteen cycles of MSC therapy (median age, 10.3 [1.7-17.8] years), with four receiving additional cycles (one cycle: n = 3, three cycles: n = 1). The severity of aGVHD before MSC therapy was grade I-II in three patients and grade III-IV in nine patients (gut stage 3-4, n= 7; liver stage 3-4; n =2). The median number of immunosuppressive therapy regimens received prior to MSC administration was two (range: 1-5). The first MSC cycle displayed the best overall response rate of 83%, including six patients with a complete response (CR) and with a 49% reduction in the mean daily dose of prednisone after eight weeks. The median time to first response was 3.5 days (range: 2-15 days). Two of the four patients who were re-administered MSCs for recurrent or persistent GVHD achieved a CR. The three-year overall survival rate was 69.4%, while the three-year failure free survival (FFS) rate was 22.2%, with a median FFS of 4.9 months. There were no observable side effects of MSC therapy. Conclusions MSC therapy appears to be an effective and safe treatment for pediatric SR-aGVHD, with a steroid-sparing effect and satisfactory efficacy upon re-administration. Further studies are needed to determine its appropriate combination with additional treatments and the optimal use of re-administration of MSCs.
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Affiliation(s)
- Hirohito Kubota
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yoshitaka Mizushima
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Tomoya Irikura
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Mai Watakabe
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Takahiro Ishikawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Ryota Kaneko
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Mamoru Honda
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuichi Mitani
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Koichi Oshima
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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Sakuraya A, Tsuno K, Inoue A, Otsuka Y, Eguchi H, Watanabe K, Arakawa Y, Kawakami N, Kobayashi Y. [Development and validation of the University of Tokyo Occupational Mental Health leadership checklist among occupational health specialists]. Sangyo Eiseigaku Zasshi 2024; 66:31-44. [PMID: 37460326 DOI: 10.1539/sangyoeisei.2022-015-e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
OBJECTIVES Recently, occupational health specialists (OHS) are expected to exert leadership to develop high-quality occupational health activities. This study aimed to develop and investigate the reliability and validity of a scale to measure leadership preparation among OHS (The University of Tokyo Occupational Mental Health [TOMH] Leadership Checklist; TLC). METHODS Based on literature reviews and interviews among OHS, we created potential items consisting of 54 items with six factors (10 items for self-awareness, 10 items for situational awareness, 9 items for vision, 12 items for mindset, 3 items for performance of one's duties, and 10 items for relationship-building). An online survey was conducted with 300 OHS in Japan to verify the scale's reliability and validity. RESULTS Consequent to the exploratory factor analysis, using the principal factor method and promax rotation, 51 items across the following five factors were identified; "self-awareness", "situational awareness", "vision", "mindset", and "performance of one's duties". The confirmatory factor analysis showed good fit indices; CFI = 0.877, SRMR = 0.050, and RMSEA = 0.072. Cronbach's α ranged from 0.93-0.96. Additionally, the scores of the TLC were significantly positively correlated with work engagement, job satisfaction, and self-efficacy; contrastingly, they were significantly negatively correlated with psychological distress (p < .05). Furthermore, the participants who had experience leadership without authority indicated significantly higher scores of the TLC and its subscales than those who did not (p < .001). DISCUSSION AND CONCLUSIONS The newly developed TLC appeared to have acceptable levels of reliability and validity. It would be beneficial for OHS to show good leadership.
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Affiliation(s)
- Asuka Sakuraya
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services
| | - Akiomi Inoue
- Institutional Research Center, University of Occupational and Environmental Health, Japan
| | | | - Hisashi Eguchi
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan
| | | | - Yuki Arakawa
- School of Social Medicine, Graduate School of Medicine, The University of Tokyo
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo
| | - Yuka Kobayashi
- Department of Clinical Psychology, Faculty of Social Policy and Administration, Hosei University
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7
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Aoyama S, Fukuoka K, Kubota H, Narita K, Kudo K, Mitani Y, Oshima K, Mori M, Arakawa Y, Ichimura K, Terui K, Tanami Y, Kawashima H, Nakazawa A, Niitsu T, Takahashi Y, Koh K. Early chemotherapeutic intervention to avoid thyroidectomy in pediatric Langerhans cell histiocytosis with thyroid involvement accompanying tracheal stenosis: a report of two cases. Int J Hematol 2024; 119:99-103. [PMID: 37740816 DOI: 10.1007/s12185-023-03662-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/31/2023] [Accepted: 09/11/2023] [Indexed: 09/25/2023]
Abstract
Thyroid involvement is rare in pediatric Langerhans cell histiocytosis (LCH). It may cause airway narrowing, leading to acute-onset respiratory distress. Severe cases may require emergent surgical interventions such as thyroidectomy, which should be avoided in children due to higher rates of complication, particularly in infancy. There is currently no consensus on the indications for surgical treatment in LCH with thyroid involvement. In this report, we describe the cases of two children who presented with tracheal stenosis caused by thyroid LCH, both of which were successfully treated by early induction of chemotherapy, and one of which was also treated for a shorter duration. Mutation analysis detected in-frame deletions of BRAF exon 12 in both cases. These cases suggest that timely diagnosis and administration of chemotherapy may alleviate severe airway obstruction and reduce the need for thyroidectomy in pediatric patients with thyroid LCH.
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Affiliation(s)
- Shuhei Aoyama
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo-ku, Saitama, 330-8777, Japan
| | - Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo-ku, Saitama, 330-8777, Japan.
| | - Hirohito Kubota
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo-ku, Saitama, 330-8777, Japan
| | - Kotaro Narita
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ko Kudo
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuichi Mitani
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo-ku, Saitama, 330-8777, Japan
| | - Koichi Oshima
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo-ku, Saitama, 330-8777, Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo-ku, Saitama, 330-8777, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo-ku, Saitama, 330-8777, Japan
| | - Kayoko Ichimura
- Department of Pathology, Saitama Children's Medical Center, Saitama, Japan
| | - Kiminori Terui
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Hiroshi Kawashima
- Department of Pediatric Surgery, Saitama Children's Medical Center, Saitama, Japan
| | - Atsuko Nakazawa
- Department of Pathology, Saitama Children's Medical Center, Saitama, Japan
| | - Takehiro Niitsu
- Department of Critical Care Medicine, Saitama Children's Medical Center, Saitama, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shintoshin, Chuo-ku, Saitama, 330-8777, Japan
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8
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Kocot A, Czarnecka M, Arakawa Y, Merkel K. Exploring the Impact of Intermolecular Interactions on the Glassy Phase Formation of Twist-Bend Liquid Crystal Dimers: Insights from Dielectric Studies. Molecules 2023; 28:7441. [PMID: 37959860 PMCID: PMC10648427 DOI: 10.3390/molecules28217441] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
The formation of the nematic to twist-bend nematic (NTB) phase has emerged as a fascinating phenomenon in the field of supramolecular chemistry, based on complex intermolecular interactions. Through a careful analysis of molecular structures and dynamics, we elucidate how these intermolecular interactions drive the complex twist-bend modulation observed in the NTB. The study employs broadband dielectric spectroscopy spanning frequencies from 10 to 2 × 109 Hz to investigate the molecular orientational dynamics within the glass-forming thioether-linked cyanobiphenyl liquid crystal dimers, namely, CBSC7SCB and CBSC7OCB. The experimental findings align with theoretical expectations, revealing the presence of two distinct relaxation processes contributing to the dielectric permittivity of these dimers. The low-frequency relaxation mode is attributed to an "end-over-end rotation" of the dipolar groups parallel to the director. The high-frequency relaxation mode is associated with precessional motions of the dipolar groups about the director. Various models are employed to describe the temperature-dependent behavior of the relaxation times for both modes. Particularly, the critical-like description via the dynamic scaling model seems to give not only quite good numerical fittings, but also provides a consistent physical picture of the orientational dynamics in accordance with findings from infrared (IR) spectroscopy. Here, as the longitudinal correlations of dipoles intensify, the m1 mode experiences a sudden upsurge in enthalpy, while the m2 mode undergoes continuous changes, displaying critical mode coupling behavior. Interestingly, both types of molecular motion exhibit a strong cooperative interplay within the lower temperature range of the NTB phase, evolving in tandem as the material's temperature approaches the glass transition point. Consequently, both molecular motions converge to determine the glassy dynamics, characterized by a shared glass transition temperature, Tg.
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Affiliation(s)
- Antoni Kocot
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland;
| | - Małgorzata Czarnecka
- Faculty of Electrical Enginesering, Automatics, Computer Science and Biomedical Engineering, AGH University of Science and Technology, 30-059 Krakow, Poland;
| | - Yuki Arakawa
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan;
| | - Katarzyna Merkel
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland;
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9
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Mitani Y, Honda M, Mizushima Y, Mori M, Fukuoka K, Oshima K, Arakawa Y, Taira K, Tanami Y, Koh K. Development of VIII inhibitors beyond 50 exposure days to rFVIII during prophylactic emicizumab therapy. Haemophilia 2023; 29:1653-1655. [PMID: 37707369 DOI: 10.1111/hae.14854] [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: 05/22/2023] [Revised: 08/03/2023] [Accepted: 08/28/2023] [Indexed: 09/15/2023]
Affiliation(s)
- Yuichi Mitani
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Mamoru Honda
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yoshitaka Mizushima
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Koichi Oshima
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuaki Taira
- Department of Orthopedic Surgery, Saitama Children's Medical Center, Saitama, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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10
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Fujita T, Fukushima H, Nanmoku T, Arakawa Y, Deguchi T, Suzuki R, Yamaki Y, Hosaka S, Takada H. Acute monocytic leukemia with KMT2A::LASP1 developed 9 months after diagnosis of acute megakaryoblastic leukemia in a 2-year-old boy. Int J Hematol 2023; 118:514-518. [PMID: 37314622 DOI: 10.1007/s12185-023-03622-x] [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: 01/30/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/15/2023]
Abstract
Acute myeloid leukemia (AML) is known as one of the subsequent malignant neoplasms that can develop after cancer treatment, but it is difficult to distinguish from relapse when the preceding cancer is leukemia. We report a 2-year-old boy who developed acute megakaryoblastic leukemia (AMKL, French-American-British classification [FAB]: M7) at 18 months of age and achieved complete remission with multi-agent chemotherapy without hematopoietic stem cell transplantation. Nine months after diagnosis and 4 months after completing treatment for AMKL, he developed acute monocytic leukemia (AMoL) with the KMT2A::LASP1 chimeric gene (FAB: M5b). The second complete remission was achieved using multi-agent chemotherapy and he underwent cord blood transplantation 4 months after AMoL was diagnosed. He is currently alive and disease free at 39 and 48 months since his AMoL and AMKL diagnoses, respectively. Retrospective analysis revealed that the KMT2A::LASP1 chimeric gene was detected 4 months after diagnosis of AMKL. Common somatic mutations were not detected in AMKL or AMoL and no germline pathogenic variants were detected. Since the patient's AMoL was different from his primary leukemia of AMKL in terms of morphological, genomic, and molecular analysis, we concluded that he developed a subsequent leukemia rather than a relapse of his primary leukemia.
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MESH Headings
- Child, Preschool
- Humans
- Male
- Adaptor Proteins, Signal Transducing
- Cytoskeletal Proteins
- Leukemia, Megakaryoblastic, Acute/diagnosis
- Leukemia, Megakaryoblastic, Acute/genetics
- Leukemia, Megakaryoblastic, Acute/therapy
- Leukemia, Monocytic, Acute/diagnosis
- Leukemia, Monocytic, Acute/genetics
- Leukemia, Monocytic, Acute/therapy
- LIM Domain Proteins
- Recurrence
- Remission Induction
- Retrospective Studies
- Histone-Lysine N-Methyltransferase/genetics
- Oncogene Proteins, Fusion/genetics
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Affiliation(s)
- Takashi Fujita
- Department of, Pediatrics, University of Tsukuba Hospital, Tsukuba, Japan
| | - Hiroko Fukushima
- Department of, Pediatrics, University of Tsukuba Hospital, Tsukuba, Japan.
- Department of Child Health, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Toru Nanmoku
- Department of Clinical Laboratory, University of Tsukuba Hospital, Tsukuba, Japan
| | - Yuki Arakawa
- Department of Hematology and Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Takao Deguchi
- Division of Cancer Immunodiagnostics, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Ryoko Suzuki
- Department of, Pediatrics, University of Tsukuba Hospital, Tsukuba, Japan
- Department of Child Health, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Yuni Yamaki
- Department of, Pediatrics, University of Tsukuba Hospital, Tsukuba, Japan
| | - Sho Hosaka
- Department of, Pediatrics, University of Tsukuba Hospital, Tsukuba, Japan
| | - Hidetoshi Takada
- Department of, Pediatrics, University of Tsukuba Hospital, Tsukuba, Japan
- Department of Child Health, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
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11
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Hosokawa T, Arakawa Y, Sato Y, Tanami Y, Oguma E. Useful sonographic findings for diagnosing dermal metastases of rhabdomyosarcoma. J Clin Ultrasound 2023; 51:1378-1380. [PMID: 37589236 DOI: 10.1002/jcu.23539] [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] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/26/2023] [Accepted: 08/02/2023] [Indexed: 08/18/2023]
Abstract
Rhabdomyosarcoma developing in deep locations, such as the genitourinary tract, and perianal and perineal regions, symptoms may be obscure. Dermal rhabdomyosarcoma metastases may be first symptom of that and those arise in the subcutaneous fat tissue, presenting as a high echoic area surrounded by a low echoic area, accompanied by a high echoic peripheral area. These sonographic findings might indicate an aggressive malignant disease, and that would be useful to differentiate from other dermal lesions.
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Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology and Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yumiko Sato
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Eiji Oguma
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
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12
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Matsushima M, Yamada H, Kondo N, Arakawa Y, Tabuchi T. Impact of the COVID-19 pandemic on pregnancy postponement - evidence from Japan. J Biosoc Sci 2023; 55:908-920. [PMID: 36627792 DOI: 10.1017/s0021932022000451] [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] [Indexed: 01/12/2023]
Abstract
Japan has faced a decline in fertility since the coronavirus disease 2019 (COVID-19) pandemic. This study aimed to investigate the rate of pregnancy postponement and its contributing factors, with a particular focus on economic- and COVID-19 infection-related indicators. This study used data from 768 observations of married women aged 18 to 50 years with pregnancy intentions. The data were obtained from two rounds of a large web-based survey conducted by the Japan COVID-19 and Society Internet Survey (JACSIS) in 2020 and 2021. A generalised estimating equation (GEE) model was employed, as well as Poisson regression models for sub-sample analysis divided by year to estimate the year differential magnitude of the contributing factors' impacts. Approximately 20% of married women with childbearing intentions postponed their childbearing. The analyses revealed that declining income and anxiety about future household finances were significantly related to delayed childbearing, while fear of COVID-19 and infection rate were not. Additionally, the adverse effects of unfavourable economic conditions were stronger in 2021. Notably, age did not influence the decision of pregnancy postponement. Older women postponed pregnancy just as much as younger women. In conclusion, this study confirmed that the COVID-19 pandemic, particularly its related adverse economic conditions, contributed to Japan's current baby bust. Considering that advanced maternal age is already common in Japan, this decreased fertility may result in the long-term negative consequence of further population decline.
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Affiliation(s)
- Midori Matsushima
- Faculty of Humanities and Social Sciences, University of Tsukuba, Japan
| | | | - Naoki Kondo
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Japan
| | - Yuki Arakawa
- Departments of Health and Social Behavior, Graduate School of Medicine, University of Tokyo, Japan
| | - Takahiro Tabuchi
- Cancer Control Center, Osaka International Cancer Institute, Japan
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13
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Matsushima M, Yamada H, Kondo N, Arakawa Y, Tabuchi T. Married women's decision to delay childbearing, and loneliness, severe psychological distress, and suicidal ideation under crisis: online survey data analysis from 2020 to 2021. BMC Public Health 2023; 23:1642. [PMID: 37641039 PMCID: PMC10464056 DOI: 10.1186/s12889-023-16476-z] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 08/08/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic has affected every aspect of our lives, including the decision to become pregnant. Existing literature suggests that infertility and the decision to delay childbearing at a younger age are associated with a lower level of well-being and regrets when women start to desire a baby. Thus, the decision to delay childbearing due to the pandemic could negatively affect the well-being of women. This study focuses on how pregnancy decisions affect the well-being of women during the COVID-19 pandemic. METHODS From the Japan COVID-19 and Society Internet Survey, a nationally representative web-based survey, 768 observations of married women aged 18 to 50 years who had the intention of getting pregnant during the pre-pandemic period (conducted in 2020 and 2021) were used. Loneliness, severe psychological distress, and suicidal ideation were used as well-being indicators. For pooled data, a generalised estimated equation (GEE) model was used to estimate how pregnancy decision related to well-being indicators. For a sub-analysis, the sample was divided by the survey year and a Poisson regression model was used. RESULTS The GEE analysis showed an association between delaying childbearing and severe psychological distress, with the prevalence ratio (PR) being 2.06 [95% CI (1.40-3.03)]. Furthermore, loneliness and suicidal ideation that occurred after the beginning of the pandemic were significantly related to the decision to delay childbearing-1.55 [95% CI (1.03,2.34)] and 2.55 [95% CI (1.45-4.51)], respectively. Moreover, these PRs were larger for 2021 compared to 2020. CONCLUSION During the COVID-19 pandemic, approximately one-fifth of married women who had childbearing intentions before the pandemic decided to postpone pregnancy. They exhibited a deteriorated mental health state. Furthermore, the negative associations were larger in 2021 compared to 2020. Loneliness has negative consequences for both mental and physical health, as well as elevated severe psychological distress and suicidal ideation among those who decided to postpone pregnancy. Therefore, the current results should not be overlooked by society.
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Affiliation(s)
- Midori Matsushima
- Faculty of Humanities and Social Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba Ibaraki, 305-8577, Japan.
| | | | - Naoki Kondo
- Department of Social Epidemiology, Graduate School of Medicine, University of Kyoto, Kyoto, Japan
| | - Yuki Arakawa
- Departments of Health and Social Behavior, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Takahiro Tabuchi
- Cancer Control Center, Osaka International Cancer Institute, Osaka, Japan
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14
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Kocot A, Czarnecka M, Arakawa Y, Merkel K. Dielectric Study of Liquid Crystal Dimers: Probing the Orientational Order and Molecular Interactions in Nematic and Twist-Bend Nematic Phases. J Phys Chem B 2023; 127:7082-7090. [PMID: 37526147 PMCID: PMC10424235 DOI: 10.1021/acs.jpcb.3c03496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/02/2023] [Indexed: 08/02/2023]
Abstract
Dielectric spectroscopy in frequencies that range from 10 Hz to 1 GHz has been used to study the molecular orientational dynamics of the two types of dimers that form the twist-bend nematic phase over a wide range of temperatures for both nematic and twist-bend nematic phases. The symmetrical and asymmetrical liquid crystal dimers with the cyanobiphenyl mesogenic groups were investigated. The results were analyzed within the framework of the molecular theory of dielectric permittivity for nematogens. The two molecular processes can be assigned to the reorientation of the monomeric unit: the high frequency one to the precessional rotation of the longitudinal components of the cyanobiphenyl groups (CN) and the second (low frequency) to the end-over-end rotation of the CN dipole around the short molecular axis. The precession mode, which is determined by the local order and is almost unaffected by the phase transition from the nematic to the twist-bend phase, while the end-over-end rotation clearly slowed down at the transition, as it is affected by the growth of the intermolecular interactions. The latter corresponds well to the fact revealed by IR spectroscopy about the longitudinal correlation of the molecular dipoles.
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Affiliation(s)
- Antoni Kocot
- Institute
of Materials Engineering, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, Chorzów 41-500, Poland
| | - Małgorzata Czarnecka
- Faculty
of Electrical Engineering, Automatics, Computer Science and Biomedical
Engineering, AGH University of Science and
Technology, al. Adama Mickiewicza 30, Cracow 30-059, Poland
| | - Yuki Arakawa
- Department
of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan
| | - Katarzyna Merkel
- Institute
of Materials Engineering, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, Chorzów 41-500, Poland
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15
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Arakawa Y, Inoue K, Nishioka D, Nakagomi A, Tabuchi T, Kondo N. Remote Communication and Loneliness During the COVID-19 Pandemic: Cross-Sectional Study. J Med Internet Res 2023; 25:e45338. [PMID: 37432730 PMCID: PMC10369164 DOI: 10.2196/45338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/04/2023] [Accepted: 04/28/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Although remote communication technologies have been widely used to maintain connections with others against interpersonal contact restrictions and exacerbated loneliness during the COVID-19 pandemic, it is unclear whether and what types of remote communication technologies are effective in mitigating loneliness. OBJECTIVE This study aimed to investigate the association between remote communication and loneliness when face-to-face meetings with others were strongly prohibited and whether this association varied across types of communication tools, age, and gender. METHODS We used cross-sectional data from the Japan COVID-19 and Society Internet Survey conducted from August to September 2020. From registered panelists of the research agency, 28,000 randomly sampled participants completed the survey on the website. We created 2 study cohorts who stopped meeting with family members living apart and friends during the pandemic. We categorized whether participants had technology-based remote communication (voice calling, text messaging, and video calling) with family and friends. Loneliness was assessed using the 3-item University of California, Los Angeles Loneliness Scale. We used a modified Poisson regression model to investigate the association between loneliness and remote communication with family members living apart or friends. We also conducted subgroup analyses based on age and gender. RESULTS A total of 4483 participants stopped meeting with family members living apart, and 6783 participants stopped meeting with friends during the COVID-19 pandemic. Remote communication with family members living apart did not show an association with loneliness, whereas remote communication with friends was associated with a low prevalence of loneliness (family: adjusted prevalence ratio [aPR]=0.89, 95% CI 0.74-1.08; P=.24 and friends: aPR=0.82, 95% CI 0.73-0.91; P<.001). From analyses by tools, voice calling was associated with low loneliness (family: aPR=0.88, 95% CI 0.78-0.98; P=.03 and friends: aPR=0.87, 95% CI 0.80-0.95; P=.003). Similarly, text messaging was associated with low loneliness (family: aPR=0.82, 95% CI 0.69-0.97; P=.02 and friends: aPR=0.81, 95% CI 0.73-0.89; P<.001). However, we did not find an association between video calling and loneliness (family: aPR=0.88, 95% CI 0.75-1.02; P=.09 and friends: aPR=0.94, 95% CI 0.85-1.04; P=.25). Text messaging with friends was associated with low loneliness regardless of age, whereas voice calling with family or friends was associated with low loneliness only among participants aged ≥65 years. An association between remote communication with friends and low loneliness was found regardless of the type of remote communication tool among men, whereas it was found only for text messaging with friends among women. CONCLUSIONS In this cross-sectional study of adults in Japan, remote communication, especially via voice calling and text messaging, was associated with low loneliness. Promoting remote communication may reduce loneliness when face-to-face contact is restricted, which should be the subject of future research.
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Affiliation(s)
- Yuki Arakawa
- Department of Social Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Social Epidemiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kosuke Inoue
- Department of Social Epidemiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Daisuke Nishioka
- Department of Social Epidemiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Medical Statistics, Research & Development Center, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Atsushi Nakagomi
- Department of Social Preventive Medical Sciences, Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Takahiro Tabuchi
- Cancer Control Center, Osaka International Cancer Institute, Osaka, Japan
| | - Naoki Kondo
- Department of Social Epidemiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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16
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Arakawa Y, Haseda M, Inoue K, Nishioka D, Kino S, Nishi D, Hashimoto H, Kondo N. Effectiveness of mHealth consultation services for preventing postpartum depressive symptoms: a randomized clinical trial. BMC Med 2023; 21:221. [PMID: 37365535 DOI: 10.1186/s12916-023-02918-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 06/01/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND Although many conventional healthcare services to prevent postpartum depression are provided face-to-face, physical and psychosocial barriers remain. These barriers may be overcome by using mobile health services (mHealth). To examine the effectiveness of mHealth professional consultation services in preventing postpartum depressive symptoms in real-world settings, we conducted this randomized controlled trial in Japan, where universal free face-to-face perinatal care is available. METHODS This study included 734 pregnant women living in Yokohama city who could communicate in Japanese, recruited at public offices and childcare support facilities. The participants were randomized to the mHealth group (intervention, n = 365), where they could use a free app-based mHealth consultation service with gynecologists/obstetricians, pediatricians, and midwives whenever and as many times as they wanted between 6 p.m. and 10 p.m. on weekdays throughout their pregnancy and postpartum periods (funded by the City of Yokohama government) or the usual care group (control, n = 369). The primary outcome was the risk of elevated postpartum depressive symptoms, defined as Edinburgh Postnatal Depression Scale score ≥ 9. Secondary outcomes were self-efficacy, loneliness, perceived barriers to healthcare access, number of clinic visits, and ambulance usage. All outcomes were collected three months post-delivery. We also conducted subgroup analyses assessing the differences in the treatment effect by sociodemographic status. RESULTS Most women completed all questionnaires (n = 639 of 734, response rate: 87%). The mean baseline age was 32.9 ± 4.2 years, and 62% were primipara. Three months post-delivery, women in the mHealth group had a lower risk of elevated postpartum depressive symptoms (47/310 [15.2%]) compared to the usual care group (75/329 [22.8%], risk ratio: 0.67 [95% confidence interval: 0.48-0.93]). Compared with the usual care group, women in the mHealth group had higher self-efficacy, less loneliness, and fewer perceived barriers to healthcare access. No differences were observed in the frequency of clinic visits or ambulance usage. Furthermore, in the subgroup analyses, we did not find differences in the treatment effect by sociodemographic status. CONCLUSIONS Local government-funded mHealth consultation services have a preventive effect on postpartum depressive symptoms, removing physical and psychological barriers to healthcare access in real-world settings. TRIAL REGISTRATION UMIN-CTR identifier: UMIN000041611. Registered 31 August 2021.
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Affiliation(s)
- Yuki Arakawa
- Department of Health and Social Behavior, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
| | - Maho Haseda
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
| | - Kosuke Inoue
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
| | - Daisuke Nishioka
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
- Department of Medical Statistics, Research & Development Center, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Shiho Kino
- Department of Oral Health Promotion, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hideki Hashimoto
- Department of Health and Social Behavior, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Naoki Kondo
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan.
- Institute for Future Initiatives, The University of Tokyo, Tokyo, Japan.
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17
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Miyamoto S, Urayama KY, Arakawa Y, Koh K, Yuza Y, Hasegawa D, Taneyama Y, Noguchi Y, Yanagimachi M, Inukai T, Ota S, Takahashi H, Keino D, Toyama D, Takita J, Tomizawa D, Morio T, Koike K, Moriwaki K, Sato Y, Fujimura J, Morita D, Sekinaka Y, Nakamura K, Sakashita K, Goto H, Manabe A, Takagi M. Rare TCF3 variants associated with pediatric B cell acute lymphoblastic leukemia. Pediatr Hematol Oncol 2023; 41:81-87. [PMID: 37129918 DOI: 10.1080/08880018.2023.2201302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/16/2023] [Accepted: 03/28/2023] [Indexed: 05/03/2023]
Abstract
Germline genetic variants influence development of pediatric B cell acute lymphoblastic leukemia (B-ALL). Genome-wide association studies (GWAS) have identified several pediatric B-ALL susceptibility loci. IKZF1 and PAX5, transcription factors involved in B cell development, have been reported as susceptibility genes for B-ALL development. Therefore, we hypothesized that rare variants of genes involved in B cell development would be candidate susceptibility loci for pediatric B-ALL. Thus, we sequenced TCF3, a key transcription factor gene involving in B cell development. Saliva DNA from 527 pediatric patients with pediatric B-ALL in remission who were registered with the Tokyo Children's Cancer Study Group (TCCSG) were examined. As a TCF3 gene-based evaluation, the numbers of rare deleterious germline TCF3 sequence variants in patients with pediatric B-ALL were compared with those in cancer-free individuals using data in public databases. As a TCF3 single-variant evaluation, the frequencies of rare deleterious germline TCF3 sequence variants in patients with pediatric B-ALL were also compared with those in control data. TCF3 gene-based analysis revealed significant associations between rare deleterious variants and pediatric B-ALL development. In addition, TCF3 variant-based analysis showed particularly strong association between variant rs372168347 (three in 521 TCCSG and three in the 15780 gnomAD whole genome analysis cohort, p = 0.0006) and pediatric B-ALL development. TCF3 variants are known to influence B cell maturation and may increase the risk of preleukemic clone emergence.
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Affiliation(s)
- Satoshi Miyamoto
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kevin Y Urayama
- Graduate School of Public Health, St. Luke's International University, Tokyo, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Yuza
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Daisuke Hasegawa
- Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan
| | - Yuichi Taneyama
- Department of Hematology/Oncology, Chiba Children's Hospital, Chiba, Japan
| | - Yasushi Noguchi
- Department of Pediatrics, Japanese Red Cross Narita Hospital, Chiba, Japan
| | - Masakatsu Yanagimachi
- Department of Pediatrics, Yokohama City University Hospital, Kanagawa, Japan
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Takeshi Inukai
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
| | - Setsuo Ota
- Department of Pediatrics, Teikyo University Chiba Medical Center, Chiba, Japan
| | | | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
- Department of Pediatrics, St. Marianna University, Kanagawa, Japan
| | - Daisuke Toyama
- Division of Pediatrics, Showa University Fujigaoka Hospital, Yokohama, Japan
- Department of Pediatrics, Tokai University, Kanagawa, Japan
| | - Junko Takita
- Department of Pediatrics, The University of Tokyo, Tokyo, Japan
- Department of Pediatrics, Kyoto University, Kyoto, Japan
| | - Daisuke Tomizawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazutoshi Koike
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - Koichi Moriwaki
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Yuya Sato
- Department of Pediatrics, Dokkyo Medical University, Tochigi, Japan
| | - Junya Fujimura
- Department of Pediatrics and Adolescent Medicine, Juntendo University, School of Medicine, Tokyo, Japan
| | - Daisuke Morita
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yujin Sekinaka
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Kozue Nakamura
- Department of Pediatrics, Teikyo University Hospital, Tokyo, Japan
| | - Kazuo Sakashita
- Department of Hematology/Oncology, Nagano Children's Hospital, Nagano, Japan
| | - Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Atsushi Manabe
- Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan
- Department of Pediatrics, Hokkaido University, Hokkaido, Japan
| | - Masatoshi Takagi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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18
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Kino S, Stickley A, Arakawa Y, Saito M, Saito T, Kondo N. Social isolation, loneliness, and their correlates in older Japanese adults. Psychogeriatrics 2023; 23:475-486. [PMID: 36966745 DOI: 10.1111/psyg.12957] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/07/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Loneliness and social isolation are elevated in older adults and associated with a range of detrimental outcomes. Despite this, there has been little research on these phenomena or on similarities and differences in their occurrence or combination in older Japanese adults. The current study aims to (i) determine what factors are associated with social isolation and loneliness among older adults in Japan; and (ii) describe the characteristics of individuals who are socially isolated but not lonely, as well as those who feel lonely but are not socially isolated. METHODS Data were analysed from 13 766 adults aged ≥65 years who participated in the 2019 wave of the Japan Gerontological Evaluation Study. Poisson regression analysis was used to examine associations. RESULTS Among older Japanese adults, the attributes of higher age, male gender, lower socioeconomic status, being a welfare recipient, and having depressive symptoms were associated with social isolation, while lower socioeconomic status, unemployment, welfare receipt, and poor physical and mental health were associated with loneliness. In addition, better educated, and mentally and physically healthy people were less likely to feel lonely even when socially isolated, while people who were not working and who had mental or physical health problems were more likely to feel lonely even if they were not socially isolated. DISCUSSION Our results indicate that in order to reduce unwanted social isolation and loneliness among older Japanese adults, in the first instance the focus should be on those individuals who are socioeconomically disadvantaged and unhealthy.
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Affiliation(s)
- Shiho Kino
- Department of Oral Health Promotion, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
| | - Andrew Stickley
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
- Department of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yuki Arakawa
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
- Department of Health and Social Behavior, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masashige Saito
- Faculty of Social Welfare, Nihon Fukushi University, Chita-gun, Japan
- Center for Well-being and Society, Nihon Fukushi University, Nagoya, Japan
| | - Tami Saito
- Department of Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Naoki Kondo
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
- Department of Health and Social Behavior, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Institute for Future Initiatives, The University of Tokyo, Tokyo, Japan
- Japan Agency for Gerontological Evaluation Study (JAGES Agency), Tokyo, Japan
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19
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Fukuoka K, Nakazawa A, Hirato J, Nobusawa S, Itabashi T, Arakawa Y, Mori M, Matsushita Y, Honda S, Tanami Y, Ichimura K, Kurihara J, Koh K. An infantile pineal embryonal tumor showing pathological features of a CNS ganglioneuroblastoma and the methylation profiling of an atypical teratoid/rhabdoid tumor and SMARCA4 mutation. J Neuropathol Exp Neurol 2023:7136142. [PMID: 37086056 DOI: 10.1093/jnen/nlad033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023] Open
Affiliation(s)
- Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
| | - Junko Hirato
- Department of Pathology, Public Tomioka General Hospital, Tomioka, Japan
| | - Sumihito Nobusawa
- Department of Human Pathology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Toshikazu Itabashi
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuko Matsushita
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Satoko Honda
- Department of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Koichi Ichimura
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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20
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Yoshida M, Nakabayashi K, Yang W, Sato-Otsubo A, Tsujimoto SI, Ogata-Kawata H, Kawai T, Ishiwata K, Sakamoto M, Okamura K, Yoshida K, Shirai R, Osumi T, Kiyotani C, Shioda Y, Terashima K, Ishimaru S, Yuza Y, Takagi M, Arakawa Y, Imamura T, Hasegawa D, Inoue A, Yoshioka T, Ito S, Tomizawa D, Koh K, Matsumoto K, Kiyokawa N, Ogawa S, Manabe A, Niwa A, Hata K, Yang JJ, Kato M. Prevalence of pathogenic variants in cancer-predisposing genes in second cancer after childhood solid cancers. Cancer Med 2023. [PMID: 37021926 DOI: 10.1002/cam4.5835] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 02/17/2023] [Accepted: 03/11/2023] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND Second malignant neoplasms (SMNs) are one of the most severe late complications after pediatric cancer treatment. However, the effect of genetic variation on SMNs remains unclear. In this study, we revealed germline genetic factors that contribute to the development of SMNs after treatment of pediatric solid tumors. METHODS We performed whole-exome sequencing in 14 pediatric patients with SMNs, including three brain tumors. RESULTS Our analysis revealed that five of 14 (35.7%) patients had pathogenic germline variants in cancer-predisposing genes (CPGs), which was significantly higher than in the control cohort (p < 0.01). The identified genes with variants were TP53 (n = 2), DICER1 (n = 1), PMS2 (n = 1), and PTCH1 (n = 1). In terms of the type of subsequent cancer, leukemia and multiple episodes of SMN had an exceptionally high rate of CPG pathogenic variants. None of the patients with germline variants had a family history of SMN development. Mutational signature analysis showed that platinum drugs contributed to the development of SMN in three cases, which suggests the role of platinum agents in SMN development. CONCLUSIONS We highlight that overlapping effects of genetic background and primary cancer treatment contribute to the development of second cancers after treatment of pediatric solid tumors. A comprehensive analysis of germline and tumor samples may be useful to predict the risk of secondary cancers.
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Affiliation(s)
- Masanori Yoshida
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
- Department of Pediatrics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Kazuhiko Nakabayashi
- Department of Maternal-Fetal Biology, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Wentao Yang
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Tennessee, Memphis, USA
| | - Aiko Sato-Otsubo
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shin-Ichi Tsujimoto
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
- Department of Pediatrics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Hiroko Ogata-Kawata
- Department of Maternal-Fetal Biology, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Tomoko Kawai
- Department of Maternal-Fetal Biology, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Keisuke Ishiwata
- Department of Maternal-Fetal Biology, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Mika Sakamoto
- Medical Genome Center, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Kohji Okamura
- Department of Systems BioMedicine, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Kaoru Yoshida
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Ryota Shirai
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
- Department of Pediatrics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Tomoo Osumi
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Chikako Kiyotani
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Yoko Shioda
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Keita Terashima
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Sae Ishimaru
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
- Trial and Data Center, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Yuki Yuza
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Masatoshi Takagi
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Toshihiko Imamura
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - Daisuke Hasegawa
- Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan
| | - Akiko Inoue
- Department of Pediatrics, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Takako Yoshioka
- Department of Pathology, National Center for Child Health and Development, Tokyo, Japan
| | - Shuichi Ito
- Department of Pediatrics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Daisuke Tomizawa
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Kimikazu Matsumoto
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Nobutaka Kiyokawa
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Atsushi Manabe
- Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Akira Niwa
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Kenichiro Hata
- Department of Maternal-Fetal Biology, Research Institute, National Center for Child Health and Development, Tokyo, Japan
- Department of Human Molecular Genetics, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Jun J Yang
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Tennessee, Memphis, USA
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, USA
| | - Motohiro Kato
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
- Department of Pediatrics, The University of Tokyo, Tokyo, Japan
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21
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Kuroki N, Yagishita K, Shimizu K, Okuaki S, Doi Y, Arakawa Y, Nakano T, Akama T. Emergency department activities at the Athletes' Village during the Tokyo 2020 Olympic and Paralympic Games. Acute Med Surg 2023; 10:e905. [PMID: 38020491 PMCID: PMC10680581 DOI: 10.1002/ams2.905] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/12/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Aim More than 15,000 elite athletes participated in the Tokyo 2020 Olympic and Paralympic Games. Providing adequate medical services to these elite athletes was a priority. Hence, a polyclinic was established in the Athletes' Village. Visitors were triaged at the emergency department of the polyclinic to enable early treatment of critical illnesses or injuries in the emergency room (ER) and to identify patients suspected of having coronavirus disease as early as possible. No reports of emergency department activities at large sporting events in the pandemic era are available. Here, we aim to summarize the activities at the emergency department of the polyclinic. Methods Data were collected using an electronic medical record system, nursing records, and questionnaires administered during triage from July 13 to September 8, 2021. Polyclinic data involving accredited athletes and team members were summarized. Results During the Olympic Games, 12,318 triage cases were reported, of which 75 were treated in the ER. During the Paralympic Games, 8398 triage cases were reported, of which 94 were treated in the ER. During the Olympic Games, musculoskeletal issues (26 patients) were the most common. During the Paralympic Games, ear, nose, and throat issues were the most common (21 patients). Two patients experienced cardiopulmonary arrest in the Athletes' Village and were transported to the hospital postresuscitation. Conclusion During the study period, many critically ill patients were triaged and treated at the emergency department. Our data can be used to improve medical care and infection prevention at future international sporting events.
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Affiliation(s)
- Norihiro Kuroki
- Department of Medical ServiceTokyo Organizing Committee of the Olympic and Paralympic GamesTokyoJapan
- Department of CardiologyTokyo Metropolitan Bokutoh HospitalTokyoJapan
| | - Kazuyoshi Yagishita
- Department of Medical ServiceTokyo Organizing Committee of the Olympic and Paralympic GamesTokyoJapan
- Clinical Center for Sports Medicine and Sports DentistryTokyo Medical and Dental UniversityTokyoJapan
| | - Keiki Shimizu
- Department of Medical ServiceTokyo Organizing Committee of the Olympic and Paralympic GamesTokyoJapan
- Department of Critical Care and Emergency MedicineTokyo Metropolitan Tama Medical CenterTokyoJapan
| | - Sachiko Okuaki
- Department of Medical ServiceTokyo Organizing Committee of the Olympic and Paralympic GamesTokyoJapan
- Nursing DepartmentTokyo Metropolitan Tama Medical CenterTokyoJapan
| | - Yuuri Doi
- Department of Medical ServiceTokyo Organizing Committee of the Olympic and Paralympic GamesTokyoJapan
- Nursing DepartmentTokyo Metropolitan Matsuzawa HospitalTokyoJapan
| | - Yuki Arakawa
- Department of Medical ServiceTokyo Organizing Committee of the Olympic and Paralympic GamesTokyoJapan
- Department of Critical Care and Emergency MedicineTokyo Metropolitan Tama Medical CenterTokyoJapan
| | - Tomotsugu Nakano
- Department of Medical ServiceTokyo Organizing Committee of the Olympic and Paralympic GamesTokyoJapan
- Emergency and Critical Care CenterTokyo Metropolitan Hiroo HospitalTokyoJapan
| | - Takao Akama
- Department of Medical ServiceTokyo Organizing Committee of the Olympic and Paralympic GamesTokyoJapan
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
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22
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Hayashi K, Mori M, Sanmoto Y, Oiki H, Ishimaru T, Arakawa Y, Koh K, Kawashima H. Relationship between the timing of chemotherapy and surgical complications following surgical biopsy in children with malignant solid tumors. Pediatr Blood Cancer 2023; 70:e30030. [PMID: 36184783 DOI: 10.1002/pbc.30030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 08/07/2022] [Accepted: 09/04/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Biopsies for diagnosis before chemotherapy is common in children with malignant solid tumors. Wound healing is delayed by chemotherapy; however, the ideal interval between biopsy and chemotherapy remains unknown. We aimed to summarize the relationship between chemotherapy timing and postoperative surgical complications. PROCEDURE We retrospectively reviewed patients with malignant solid tumors who underwent chemotherapy after surgical biopsy at our institution between January 2014 and August 2020. The primary outcomes were postoperative surgical complications (within 30 days) and the timing of chemotherapy. RESULTS Forty-three patients were analyzed. The types of tumors were neuroblastoma (n = 20), hepatoblastoma (n = 10), Ewing sarcoma (n = 5), germ cell tumor (n = 3), angiosarcoma (n = 1), clear cell sarcoma (n = 1), ganglioneuroblastoma (n = 1), rhabdoid tumor (n = 1), and rhabdomyosarcoma (n = 1). The operative procedures were thoracoscopy (n = 5), laparotomy (n = 17), laparoscopy (n = 14), and superficial (n = 7). The median time [range] to chemotherapy after biopsy was 4 [0-21] days. No surgical complications occurred before chemotherapy, and two (4.7%) patients experienced complications after chemotherapy. These included postoperative hemorrhage (grade 3) and surgical site infection (grade 1). Chemotherapy was initiated 1 and 6 days after biopsy, respectively, in these cases. Complications occurred 10 and 23 days after biopsy, respectively. CONCLUSION The rate of postoperative surgical complications related to biopsy seems acceptable, even when chemotherapy was initiated in the early postoperative period. Early initiation of chemotherapy after biopsy may be a suitable option, particularly in children with bulky or symptomatic malignant solid tumors.
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Affiliation(s)
- Kentaro Hayashi
- Department of Pediatric Surgery, Saitama Children's Medical Center, Saitama City, Saitama, Japan.,Department of Pediatric Surgery, The University of Tokyo, Graduate School of Medicine, Tokyo, Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama City, Saitama, Japan
| | - Youhei Sanmoto
- Department of Pediatric Surgery, Saitama Children's Medical Center, Saitama City, Saitama, Japan
| | - Hironobu Oiki
- Department of Pediatric Surgery, Saitama Children's Medical Center, Saitama City, Saitama, Japan
| | - Tetsuya Ishimaru
- Department of Pediatric Surgery, Saitama Children's Medical Center, Saitama City, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama City, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama City, Saitama, Japan
| | - Hiroshi Kawashima
- Department of Pediatric Surgery, Saitama Children's Medical Center, Saitama City, Saitama, Japan
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23
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Stickley A, Kondo N, Inoue Y, Kanamori M, Kino S, Arakawa Y, McKee M. Worry about crime and loneliness in nine countries of the former Soviet Union. SSM Popul Health 2022; 21:101316. [PMID: 36632051 PMCID: PMC9827055 DOI: 10.1016/j.ssmph.2022.101316] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 12/08/2022] [Accepted: 12/08/2022] [Indexed: 12/13/2022] Open
Abstract
Worry about crime has been linked to several detrimental outcomes including worse mental health. However, there has been little research on the association between worry about crime and loneliness, even though loneliness is increasingly being recognised as a serious public health issue. To address this deficit, this study examined the association between worry about crime and loneliness in nine countries of the former Soviet Union (FSU - Armenia, Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Moldova, Russia, and Ukraine), using data from 18,000 respondents aged 18 and above that were collected during the Health in Times of Transition (HITT) survey in 2010/11. Results from a pooled logistic regression analysis showed that compared to those who reported no worry about crime, individuals with a high level of worry had significantly higher odds of loneliness (odds ratio [OR]: 1.43, 95% confidence interval [CI]: 1.17-1.75). Sex- and age-stratified analyses further showed that the association was observed in women with a mid (OR: 1.37, 95%CI: 1.10-1.71) and a high level (OR: 1.70, 95%CI: 1.33-2.17) of worry about crime but not in men, and that a high level of worry about crime was linked to loneliness in adults aged 35-59 (OR: 1.39, 95%CI: 1.02-1.91) and 60 and above (OR: 1.64, 95%CI: 1.12-2.40) but not in those aged 18-34. High levels of worry about crime are associated with loneliness in the FSU countries. Reducing crime and its associated worries may have important public health benefits in these countries.
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Affiliation(s)
- Andrew Stickley
- Stockholm Centre for Health and Social Change (SCOHOST), Sodertorn University, Huddinge, Sweden,Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan,Corresponding author. Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan.
| | - Naoki Kondo
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
| | - Yosuke Inoue
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Mariko Kanamori
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan,Institute for the Future of Human Society, Kyoto University, Kyoto, Japan
| | - Shiho Kino
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan,Department of Oral Health Promotion, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuki Arakawa
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, Kyoto, Japan
| | - Martin McKee
- Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, UK
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24
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Aya S, Tang W, Kong X, Arakawa Y, Komatsu K, Tsuji H. Nontrivial ultraslow dynamics under electric-field in nematics of bent-shaped molecules. Phys Chem Chem Phys 2022; 25:297-303. [PMID: 36477024 DOI: 10.1039/d2cp02407a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
For over decades, nematic liquid crystals have been recognized as highly fluidic materials that respond to electric field on the millisecond scale. In contrast to traditional nematics with fast responsivity, we herein report nontrivial ultraslow electric-driven dynamics in bent-shaped nematic materials. Varying the alkyl chain spacers of bent-shaped cyanobiphenyl dimers (COOm and OCOm) shows a 'transition' in the dynamics behavior between the bent-dimeric and bent-core materials. Interestingly, with short alkyl chain spacers, COO2 exhibits unexpected ultra-slow dynamic pathways, i.e., "quasi-static" electrohydrodynamic convection. A significant observation is that the on/off-electro-switching time of COO2 is 10 000 times higher than that of typical nematic materials, which is the largest value reported ever in the kilo-second range. In addition, the threshold voltage for inducing the reorientation of the nematic director for COO2 is higher than 5 V, which is uncommon in traditional N materials. These properties are distinct from those of traditional nematic materials and discussed in terms of dielectric constants and electrohydrodynamic convection.
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Affiliation(s)
- Satoshi Aya
- South China Advanced Institute for Soft Matter Science and Technology (AISMST), School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China. .,Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Wentao Tang
- South China Advanced Institute for Soft Matter Science and Technology (AISMST), School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China.
| | - Xian Kong
- South China Advanced Institute for Soft Matter Science and Technology (AISMST), School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China.
| | - Yuki Arakawa
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi, 441-8580, Japan.
| | - Kenta Komatsu
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi, 441-8580, Japan.
| | - Hideto Tsuji
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi, 441-8580, Japan.
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25
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Hirano T, Nakajima M, Ohbe H, Kaszynski RH, Iwasaki Y, Arakawa Y, Sasabuchi Y, Fushimi K, Matsui H, Yasunaga H. Corticosteroid use with extracorporeal cardiopulmonary resuscitation for out-of-hospital cardiac arrest: A nationwide observational study. Resusc Plus 2022; 12:100308. [PMID: 36187432 PMCID: PMC9515597 DOI: 10.1016/j.resplu.2022.100308] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/12/2022] [Accepted: 09/12/2022] [Indexed: 11/17/2022] Open
Abstract
Aim Several studies have reported that corticosteroid administration for cardiac arrest patients may improve outcomes. However, these previous studies have not examined the effect of corticosteroid use in out-of-hospital cardiac arrest (OHCA) patients administered extracorporeal cardiopulmonary resuscitation (ECPR). Therefore, we aimed to examine the effectiveness of corticosteroids in OHCA patients administered ECPR. Methods Using the Japanese Diagnosis Procedure Combination inpatient database, we included OHCA patients who were administered ECPR on the day of admission between July 2010 and March 2019. The patients were categorized into the corticosteroid and control groups according to whether they received corticosteroids on the day of admission or not. The primary outcome was in-hospital mortality and the secondary outcomes included percentages of neurologically favorable survival, major bleeding complications, and infection-related complications. We compared the outcomes using a propensity score matching analysis. Results We identified 6,142 eligible patients (459 vs 5,683, the corticosteroid and control group, respectively). One-to-four propensity score matching analysis (457 vs 1,827) showed in-hospital mortality was significantly higher in the corticosteroid group compared with the control group (82.1% vs 76.6%; risk difference, 5.5%; 95% CI, 1.5 to 9.5%). Neurologically favorable outcomes did not differ between the two groups (13.6% vs 16.9%; risk difference, −3.3%; 95% CI, −6.9 to 0.3%). The percentage of major bleeding complications and infection-related complications did not significantly differ between the two groups. Conclusions The results of this study demonstrated that administration of corticosteroids on the day of admission to OHCA patients administered ECPR was associated with increased in-hospital mortality.
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Affiliation(s)
- Takaki Hirano
- Department of Anesthesiology and Emergency Medicine, Ohta Nishinouchi Hospital, 2-5-20 Nishinouchi, Koriyama, Fukushima 963–8558, Japan
| | - Mikio Nakajima
- Emergency Life-Saving Technique Academy of Tokyo, Foundation for Ambulance Service Development, 4-5, Minami-Osawa, Hachioji-shi, Tokyo 192-0364, Japan
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Emergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan
- Corresponding author at: Emergency Life-Saving Technique Academy of Tokyo, Foundation for Ambulance Service Development, 4-5, Minami-Osawa, Hachioji-shi, Tokyo 192-0364, Japan.
| | - Hiroyuki Ohbe
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Richard H Kaszynski
- Emergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan
| | - Yudai Iwasaki
- Department of Anesthesiology and Perioperative Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Yuki Arakawa
- Doctoral Program, Social Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yusuke Sasabuchi
- Data Science Center, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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26
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Horiguchi A, Arakawa Y, Noguchi J, Mori M, Oshima K, Iwama I, Kawashima H, Tanami Y, Nakazawa A, Koh K. Donor-origin anaplastic lymphoma kinase driver-positive inflammatory myofibroblastic tumor after umbilical cord blood transplantation in pediatric acute lymphoblastic leukemia. Pediatr Blood Cancer 2022; 69:e29708. [PMID: 35441453 DOI: 10.1002/pbc.29708] [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] [Received: 03/01/2022] [Accepted: 03/21/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Ayumi Horiguchi
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Jun Noguchi
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Koichi Oshima
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Itaru Iwama
- Department of Gastroenterology and Hepatology, Saitama Children's Medical Center, Saitama, Japan
| | - Hiroshi Kawashima
- Department of Surgery, Saitama Children's Medical Center, Saitama, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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27
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Saito D, Fukaya H, Oikawa J, Sato T, Matsuura G, Arakawa Y, Kobayashi S, Shirakawa Y, Ishizue N, Kishihara J, Niwano S, Ako J. Atrial late potentials are associated with atrial fibrillation recurrence after catheter ablation. J Arrhythm 2022; 38:991-996. [PMCID: PMC9745488 DOI: 10.1002/joa3.12786] [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] [Received: 08/07/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 12/15/2022] Open
Abstract
Background Previous studies have identified noninvasive methods for predicting atrial fibrillation (AF) recurrence after catheter ablation (CA). We assessed the association between AF recurrence and atrial late potentials (ALPs), which were measured using P‐wave signal‐averaged electrocardiography (P‐SAECG). Methods Consecutive patients with paroxysmal AF who underwent their first CA at our institution between August 2015 and August 2019 were enrolled. P‐SAECG was performed before CA. Two ALP parameters were evaluated: the root‐mean‐square voltage during the terminal 20 ms (RMS20) and the P‐wave duration (PWD). Positive ALPs were defined as an RMS20 <2.2 μV and/or a PWD >115 ms. Patients were allocated to either the recurrence or nonrecurrence group based on the presence of AF recurrence at the 1‐year follow‐up post‐CA. Results Of the 190 patients (age: 65 ± 11 years, 37% women) enrolled in this study, 21 (11%) had AF recurrence. The positive ALP rate was significantly higher in the recurrence group than in the nonrecurrence group (86% vs. 64%, p = .04), despite the absence of differences in other baseline characteristics between the two groups. In the multivariate analysis, positive ALP was an independent predictor of AF recurrence (odds ratio: 3.83, 95% confidence interval: 1.05–14.1, p = .04). Conclusions Positive ALP on pre‐CA P‐SAECG is associated with AF recurrence after CA.
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Affiliation(s)
- Daiki Saito
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Hidehira Fukaya
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Jun Oikawa
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Tetsuro Sato
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Gen Matsuura
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Yuki Arakawa
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Shuhei Kobayashi
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Yuki Shirakawa
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Naruya Ishizue
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Jun Kishihara
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Shinichi Niwano
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Junya Ako
- Department of Cardiovascular MedicineKitasato University School of MedicineSagamiharaKanagawaJapan
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28
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Arakawa Y, Hasegawa D, Miyamura T, Ohshima J, Kimura S, Imamura T, Koga Y, Yamamoto S, Ogawa A, Shinoda K, Eguchi M, Hosoi H, Imai K, Koh K, Tomizawa D. Postchemotherapy immune status in infants with acute lymphoblastic leukemia: A report from the JPLSG MLL-10 trial. Pediatr Blood Cancer 2022; 69:e29772. [PMID: 35796397 DOI: 10.1002/pbc.29772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/07/2022] [Accepted: 04/18/2022] [Indexed: 11/08/2022]
Abstract
The MLL-10 trial (UMIN000004801) modified a Children's Oncology Group (COG) AALL0631 therapy for infants with KMT2A-rearranged acute lymphoblastic leukemia (ALL). In 2016, one registered case developed secondary immunodeficiency during maintenance therapy and eventually died due to cytomegalovirus infection. Around the same time, fatal secondary immunodeficiencies were reported in five infants with ALL in North America who had received COG-based chemotherapy between 1996 and 2015. Given these cases, we decided to conduct a retrospective study on the postchemotherapy immune status of infants with ALL. A questionnaire collected data on posttreatment immune function, frequency of infections, and supportive care for the 34 infants in the MLL-10 trial. Patients receiving allogeneic hematopoietic stem cell transplantation in first remission were excluded. Responses to the survey were obtained in 28 cases (85%). Most patients were immunocompetent after the completion of chemotherapy (median follow-up duration from the day of chemotherapy completion was 431 days), except for the aforementioned case. There were seven patients with nonsevere viral infection, all of whom recovered. In conclusion, severe chemotherapy-induced immunodeficiency in infants with ALL appears to be rare, but prospective data collection of immune function is necessary to clarify this finding.
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Affiliation(s)
- Yuki Arakawa
- Department of Haematology and Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Daisuke Hasegawa
- Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan
| | - Takako Miyamura
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Junjiro Ohshima
- Department of Pediatrics, Matsumoto Pediatrics, Sapporo, Japan.,Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Shunsuke Kimura
- Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan
| | - Toshihiko Imamura
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuhki Koga
- Department of Pediatrics, Kyushu University Hospital, Fukuoka, Japan
| | | | - Atsushi Ogawa
- Department of Pediatrics, Niigata Cancer Center Hospital, Niigata, Japan
| | | | - Mariko Eguchi
- Department of Pediatrics, Ehime University Graduate School of Medicine, Tōon, Ehime, Japan
| | - Hajime Hosoi
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kohsuke Imai
- Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan
| | - Katsuyoshi Koh
- Department of Haematology and Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Daisuke Tomizawa
- Division of Leukemia and Lymphoma, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
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29
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Yoshida M, Brown SA, Moriyama T, Nishii R, Tsujimoto SI, Yamada Y, Yoshida K, Shirai R, Osumi T, Utano T, Fukano R, Kudo K, Sakaguchi K, Arakawa Y, Koh K, Sekiguchi M, Sekimizu M, Miyamura T, Ishida H, Inukai T, Tomizawa D, Kiyokawa N, Kato M, Yang JJ. Low NUDT15 expression levels due to biallelic NUDT15 variants and 6-mercaptopurine intolerance. Br J Haematol 2022; 199:270-276. [PMID: 35905175 PMCID: PMC9547862 DOI: 10.1111/bjh.18375] [Citation(s) in RCA: 2] [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: 05/25/2022] [Revised: 07/07/2022] [Accepted: 07/10/2022] [Indexed: 01/15/2023]
Abstract
6-Mercaptopurine (6-MP) is widely used for the treatment of paediatric leukaemia and lymphoma. Recently, germline variants in the NUDT15 gene have been identified as one of the major genetic causes for 6-MP-associated adverse effects such as myelosuppression. Patients with hypomorphic NUDT15 variants accumulate excessive levels of DNA-incorporated thioguanine in white blood cells, resulting in severe myelosuppression. Although preclinical studies suggest that these variants may influence the protein stability of NUDT15, this has not been directly characterised in patients. In this study, we report the development of a series of novel monoclonal antibodies against NUDT15, using which we quantitatively assessed NUDT15 protein levels in 37 patients with acute lymphoblastic leukaemia treated with 6-MP, using sandwich enzyme-linked immunosorbent assay (ELISA). The NUDT15 genotype was highly correlated with its protein levels (p < 0.0001), with homozygous and compound heterozygous patients showing exceedingly low NUDT15 expression. There was a positive correlation between NUDT15 protein level and 6-MP tolerance (r = 0.631, p < 0.0001). In conclusion, our results point to low NUDT15 protein abundance as the biochemical basis for NUDT15-mediated 6-MP intolerance, thus providing a phenotypic readout of inherited NUDT15 deficiency.
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Affiliation(s)
- Masanori Yoshida
- Department of Pediatric Hematology and Oncology Research,
Research Institute, National Center for Child Health and Development, Tokyo,
Japan
| | - Scott A Brown
- Department of Immunology, St. Jude Children’s
Research Hospital, Memphis, USA
| | - Takaya Moriyama
- Department of Pharmacy and Pharmaceutical Sciences, St.
Jude Children’s Research Hospital, Memphis, USA
| | - Rina Nishii
- Department of Pharmacy and Pharmaceutical Sciences, St.
Jude Children’s Research Hospital, Memphis, USA
| | - Shin-ichi Tsujimoto
- Department of Pediatric Hematology and Oncology Research,
Research Institute, National Center for Child Health and Development, Tokyo,
Japan
| | - Yuji Yamada
- Children’s Cancer Center, National Center for Child
Health and Development, Tokyo, Japan
| | - Kaoru Yoshida
- Department of Pediatric Hematology and Oncology Research,
Research Institute, National Center for Child Health and Development, Tokyo,
Japan
| | - Ryota Shirai
- Department of Pediatric Hematology and Oncology Research,
Research Institute, National Center for Child Health and Development, Tokyo,
Japan
| | - Tomoo Osumi
- Department of Pediatric Hematology and Oncology Research,
Research Institute, National Center for Child Health and Development, Tokyo,
Japan
- Children’s Cancer Center, National Center for Child
Health and Development, Tokyo, Japan
| | - Tomoyuki Utano
- Department of Pharmaceuticals, National Center for Child
Health and Development, Tokyo, Japan
| | - Reiji Fukano
- Department of Pediatrics, Yamaguchi University Graduate
School of Medicine, Ube, Japan
| | - Ko Kudo
- Department of Pediatrics, Hirosaki University Graduate
School of Medicine, Hirosaki, Japan
| | - Kimiyoshi Sakaguchi
- Department of Pediatrics, Hamamatsu University School of
Medicine, Hamamatsu, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama
Children’s Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama
Children’s Medical Center, Saitama, Japan
| | - Masahiro Sekiguchi
- Department of Pediatrics, Graduate School of Medicine,
the University of Tokyo, Tokyo, Japan
| | - Masahiro Sekimizu
- Department of Pediatrics, National Hospital Organization
Nagoya Medical Center, Nagoya, Japan
| | - Takako Miyamura
- Department of Pediatrics, Osaka University Graduate
School of Medicine, Suita, Japan
| | - Hisashi Ishida
- Department of Pediatrics, Okayama University Hospital,
Okayama, Japan
| | - Takeshi Inukai
- Department of Pediatrics, School of Medicine, University
of Yamanashi, Yamanashi, Japan
| | - Daisuke Tomizawa
- Children’s Cancer Center, National Center for Child
Health and Development, Tokyo, Japan
| | - Nobutaka Kiyokawa
- Department of Pediatric Hematology and Oncology Research,
Research Institute, National Center for Child Health and Development, Tokyo,
Japan
| | - Motohiro Kato
- Department of Pediatric Hematology and Oncology Research,
Research Institute, National Center for Child Health and Development, Tokyo,
Japan
- Children’s Cancer Center, National Center for Child
Health and Development, Tokyo, Japan
- Department of Pediatrics, Graduate School of Medicine,
the University of Tokyo, Tokyo, Japan
| | - Jun J Yang
- Department of Pharmacy and Pharmaceutical Sciences, St.
Jude Children’s Research Hospital, Memphis, USA
- Department of Oncology, St. Jude Children’s
Research Hospital, Memphis, USA
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30
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Hosokawa T, Honda M, Arakawa Y. Initial ultrasound evaluation of an anterior mediastinal mass ultimately diagnosed as T-cell acute lymphoblastic leukemia: a report of three cases in children. Radiol Case Rep 2022; 17:3639-3645. [PMID: 35936881 PMCID: PMC9352513 DOI: 10.1016/j.radcr.2022.07.043] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/19/2022] Open
Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, 1-2 Shintoshin Chuo-ku Saitama, Saitama, 330-8777 Japan
- Corresponding author.
| | - Mamoru Honda
- Department of Gastroenterology and Hepatology, Saitama Children's Medical Center, 1-2 Shintoshin, Chuou-ku, Saitama, 330-8777, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2 Shintoshin, Chuou-ku, Saitama, 330-8777, Japan
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31
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Merkel K, Loska B, Arakawa Y, Mehl GH, Karcz J, Kocot A. How Do Intermolecular Interactions Evolve at the Nematic to Twist–Bent Phase Transition? Int J Mol Sci 2022; 23:ijms231911018. [PMID: 36232324 PMCID: PMC9570452 DOI: 10.3390/ijms231911018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/15/2022] [Accepted: 09/18/2022] [Indexed: 11/30/2022] Open
Abstract
Polarized beam infrared (IR) spectroscopy provides valuable information on changes in the orientation of samples in nematic phases, especially on the role of intermolecular interactions in forming the periodically modulated twist–bent phase. Infrared absorbance measurements and quantum chemistry calculations based on the density functional theory (DFT) were performed to investigate the structure and how the molecules interact in the nematic (N) and twist–bend (NTB) phases of thioether dimers. The nematic twist–bend phase observed significant changes in the mean IR absorbance. On cooling, the transition from the N phase to the NTB phase was found to be accompanied by a marked decrease in absorbance for longitudinal dipoles. Then, with further cooling, the absorbance of the transverse dipoles increased, indicating that transverse dipoles became correlated in parallel. To investigate the influence of the closest neighbors, DFT calculations were performed. As a result of the optimization of the molecular cores system, we observed changes in the square of the transition dipoles, which well corresponds to absorbance changes observed in the IR spectra. Interactions of molecules dominated by pairing were observed, as well as the axial shift of the core to each other.
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Affiliation(s)
- Katarzyna Merkel
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, ul. 75 Pułku Piechoty, 41-500 Chorzów, Poland
| | - Barbara Loska
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, ul. 75 Pułku Piechoty, 41-500 Chorzów, Poland
| | - Yuki Arakawa
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan
| | - Georg H. Mehl
- Department of Chemistry, University of Hull, Hull HU6 7RX, UK
| | - Jakub Karcz
- Faculty of Advanced Technologies and Chemistry, Military University of Technology, 00-908 Warszawa, Poland
| | - Antoni Kocot
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, ul. 75 Pułku Piechoty, 41-500 Chorzów, Poland
- Correspondence: ; Tel.: +48-32-3497630
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32
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Tsuji H, Nogata S, Tsukamoto N, Arakawa Y. Comparative study on the effects of incorporating poly(d,l-lactide) and solvent on stereocomplex crystallization and homocrystallization in unconstrained and constrained poly(l-lactide)/poly(d-lactide) systems. Polym J 2022. [DOI: 10.1038/s41428-022-00701-4] [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: 11/09/2022]
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33
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Tanaka Y, Urayama KY, Mori M, Arakawa Y, Hasegawa D, Noguchi Y, Yanagimachi M, Keino D, Ota S, Akahane K, Inukai T, Hangai M, Kawaguchi T, Takagi M, Koh K, Matsuda F, Manabe A. Prominence of NUDT15 genetic variation associated with 6-mercaptopurine tolerance in a genome-wide association study of Japanese children with acute lymphoblastic leukaemia. Br J Haematol 2022; 199:260-269. [PMID: 35961941 DOI: 10.1111/bjh.18405] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 12/01/2022]
Abstract
Inherited genetic variation is associated with 6-mercaptopurine (6-MP) dose reduction and frequent toxicities induced by 6-MP. However, the tolerable dose for 6-MP is not fully predicted by the known variation in NUDT15 and TPMT among Asian children with acute lymphoblastic leukaemia (ALL). We performed a genome-wide association study (GWAS) related to 6-MP dose among Japanese children with ALL. This GWAS comprised 224 patients previously enrolled in Tokyo Children's Cancer Study Group clinical studies with replication attempted in 55 patients. Genome-wide single nucleotide polymorphism (SNP) genotypes were evaluated for association with average 6-MP dose during the initial 168 days of maintenance therapy. Possible associations were observed across five gene-coding regions, among which only variants at 13q14.2 were significant and replicated genome-wide (rs116855232, NUDT15, β = -10.99, p = 3.7 × 10-13 ). Notable findings were observed for variants in AFF3 (rs75364948, p = 2.05 × 10-6 ) and CHST11 (rs1148407, p = 2.09 × 10-6 ), but were not replicated possibly due to small numbers. A previously reported candidate SNP in MTHFR was associated with higher average 6-MP dose (rs1801133, p = 0.045), and FOLH1 (rs12574928) was associated in an evaluation of candidate regions (padjust = 0.013). This study provides strong evidence that rs116855232 in NUDT15 is the genetic factor predominantly associated with 6-MP tolerable dose in children in Japan.
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Affiliation(s)
- Yoichi Tanaka
- Division of Medical Safety Sciences, National Institute of Health Sciences, Kanagawa, Japan
| | - Kevin Y Urayama
- Graduate School of Public Health, St. Luke's International University, Tokyo, Japan.,Department of Social Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Daisuke Hasegawa
- Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan
| | - Yasushi Noguchi
- Department of Pediatrics, Japanese Red Cross Narita Hospital, Chiba, Japan
| | - Masakatsu Yanagimachi
- Department of Hematology/Oncology, Children's Cancer Center, Kanagawa Children's Medical Center, Kanagawa, Japan.,Department of Pediatrics, Yokohama City University Hospital, Kanagawa, Japan
| | - Dai Keino
- Department of Hematology/Oncology, Children's Cancer Center, Kanagawa Children's Medical Center, Kanagawa, Japan.,Department of Pediatrics, St. Marianna University, Kanagawa, Japan
| | - Setsuo Ota
- Department of Pediatrics, Teikyo University Chiba Medical Center, Chiba, Japan
| | - Koshi Akahane
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
| | - Takeshi Inukai
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
| | - Mayumi Hangai
- Department of Social Medicine, National Center for Child Health and Development, Tokyo, Japan
| | | | - Masatoshi Takagi
- Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | | | - Atsushi Manabe
- Department of Pediatrics, Hokkaido University, Hokkaido, Japan
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Arakawa Y, Inui S, Tsuji H. Synthesis, phase transitions, and liquid crystal behavior of alkylthio azobenzenes. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132958] [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: 10/16/2022]
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Hatano M, Mizuno T, Arakawa Y, Inagaki R, Kato A, Matsuzaki H, Mizokami F, Koseki T, Yamada S. Efficacy of a Pharmacist Team Clinical Medication Review in Older Adults: A Prospective and Retrospective Observational Study. Biol Pharm Bull 2022; 45:1166-1171. [DOI: 10.1248/bpb.b22-00245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Masakazu Hatano
- Department of Clinical Pharmacy, Fujita Health University School of Medicine
| | - Tomohiro Mizuno
- Department of Clinical Pharmacy, Fujita Health University School of Medicine
| | - Yuki Arakawa
- Department of Clinical Pharmacy, Fujita Health University School of Medicine
| | - Risa Inagaki
- Department of Clinical Pharmacy, Fujita Health University School of Medicine
| | - Arisa Kato
- Department of Clinical Pharmacy, Fujita Health University School of Medicine
| | - Haruna Matsuzaki
- Department of Clinical Pharmacy, Fujita Health University School of Medicine
| | - Fumihiro Mizokami
- Department of Pharmacy, National Center for Geriatrics and Gerontology
| | - Takenao Koseki
- Department of Clinical Pharmacy, Fujita Health University School of Medicine
| | - Shigeki Yamada
- Department of Clinical Pharmacy, Fujita Health University School of Medicine
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Sugawa M, Fukuoka K, Mori M, Arakawa Y, Tanami Y, Nobusawa S, Hirato J, Nakazawa A, Kurihara J, Koh K. Prognostic impact of the multimodal treatment approach in patients with C19MC-altered embryonal tumor with multilayered rosettes. J Neurosurg Pediatr 2022; 30:232-238. [PMID: 35594893 DOI: 10.3171/2022.4.peds21542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 04/05/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Embryonal tumor with multilayered rosettes (ETMR) is one of the childhood central nervous system tumors with the poorest prognosis; thus, establishing an optimal treatment strategy is essential, However, because of the low incidence and molecular heterogeneity of the tumor, the optimal treatment has not yet been determined. In this study the authors evaluated the prognostic impact of a multimodal treatment approach in patients with ETMR. METHODS The authors evaluated 4 patients with ETMR at their institution who showed varied clinical features and also conducted clinical characterization and prognostic analysis of previously reported cases of the ETMR-presenting locus 19q13.42 with a chromosome 19 microRNA cluster (C19MC) amplification, which is known to be a diagnostic hallmark of the tumor. RESULTS Of the 4 patients with ETMR in the authors' institution, in 1 case the patient's tumor showed a neuroblastoma-like appearance without multilayered rosettes; however, the diagnosis was confirmed by the presence of amplified C19MC. From a clinical standpoint, 2 patients who underwent gross-total resection (GTR) of the tumor and chemotherapy followed by high-dose chemotherapy (HDC) had long-term complete remission with or without local irradiation. In the multivariate analysis of 43 cases with C19MC-altered ETMR reported in the literature, HDC and local irradiation were significantly correlated with better event-free survival (HR 0.17, p = 0.0087; HR 0.17, p = 0.010) and overall survival (OS) (HR 0.29, p = 0.023; HR 0.28, p = 0.019), respectively. GTR was also correlated with better OS (HR 0.40, p = 0.039). CONCLUSIONS This case series demonstrated pathological and clinical heterogeneity among ETMR cases and the diagnostic importance of the molecular genetic approach among embryonal tumors, particularly during infancy. Based on the results of the analysis of molecularly uniformed ETMR cases, multimodal treatment may play a significant role in the prognosis of these tumors.
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Affiliation(s)
| | | | | | | | - Yutaka Tanami
- 2Department of Radiology, Saitama Children's Medical Center, Saitama
| | - Sumihito Nobusawa
- 3Department of Human Pathology, Gunma University Graduate School of Medicine, Maebashi
| | - Junko Hirato
- 4Department of Pathology, Public Tomioka General Hospital, Tomioka; and
| | | | - Jun Kurihara
- 6Department of Neurosurgery, Saitama Children's Medical Center, Saitama, Japan
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Tsuji H, Osanai K, Arakawa Y. Stereocomplex crystallization behavior and properties of asymmetric combinations of oppositely configured random copolymers based on chiral 2-hydroxyalkanoic acids. Polym J 2022. [DOI: 10.1038/s41428-022-00682-4] [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: 11/09/2022]
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38
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Kocot A, Loska B, Arakawa Y, Mehl GH, Merkel K. Study of the Experimental and Simulated Vibrational Spectra Together with Conformational Analysis of Thioether Cyanobiphenyl-Based Liquid Crystal Dimers. Int J Mol Sci 2022; 23:ijms23148005. [PMID: 35887352 PMCID: PMC9316788 DOI: 10.3390/ijms23148005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/15/2022] [Accepted: 07/18/2022] [Indexed: 11/16/2022] Open
Abstract
Infrared spectroscopy (IR) and quantum chemistry calculations that are based on the density functional theory (DFT) have been used to study the structure and molecular interactions of the nematic and twist-bend phases of thioether-linked dimers. Infrared absorbance measurements were conducted in a polarized beam for a homogeneously aligned sample in order to obtain more details about the orientation of the vibrational transition dipole moments. The distributions to investigate the structure and conformation of the molecule dihedral angle were calculated. The calculated spectrum was compared with the experimental infrared spectra and as a result, detailed vibrational assignments are reported.
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Affiliation(s)
- Antoni Kocot
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, ul. 75. Pułku Piechoty, 41-500 Chorzów, Poland; (A.K.); (B.L.)
| | - Barbara Loska
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, ul. 75. Pułku Piechoty, 41-500 Chorzów, Poland; (A.K.); (B.L.)
| | - Yuki Arakawa
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan;
| | - Georg H. Mehl
- Department of Chemistry, University of Hull, Hull HU6 7RX, UK;
| | - Katarzyna Merkel
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, ul. 75. Pułku Piechoty, 41-500 Chorzów, Poland; (A.K.); (B.L.)
- Correspondence: ; Tel.: +48-32-349-7630
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Yamabe K, Arakawa Y, Shoji M, Miyamoto K, Tsuchiya T, Minoura K, Akeda Y, Tomono K, Onda M. Enhancement ofAcinetobacterbaumanniibiofilm growth by cephem antibiotics via enrichment of protein and extracellular DNAin thebiofilm matrices. J Appl Microbiol 2022; 133:2002-2013. [PMID: 35818769 PMCID: PMC9539989 DOI: 10.1111/jam.15712] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/03/2022] [Accepted: 07/06/2022] [Indexed: 11/30/2022]
Abstract
AIMS To determine the effects of subinhibitory concentrations of eight cephem and carbapenem antibiotics on thebiofilm formation ofAcinetobacterbaumanniicells and examine itseffect on pre-established biofilms. METHODS AND RESULTS Effects of antibiotics on biofilm formation were assayed using microtiter plates with polystyrene peg-lids.Cefmetazole, ceftriaxone, ceftazidime, and cefpirome increased the biomass of pre-established biofilms on pegs in the range of their sub-minimum inhibitory concentrations, whereas none increased biofilm formation by planktonic cells. Carbapenems had a negative effect.The constituents of antibiotic-induced biofilms were analyzed. Ceftriaxoneor ceftazidimetreatment markedly increased the matrix constituent amounts in the biofilms (carbohydrate, 2.7-fold; protein, 8.9-12.7-fold; lipid, 3.3-3.6-fold; DNA, 9.1-12.2-fold; outer membrane vesicles, 2.7-3.8-fold; and viable cells,6.8-10.1-fold).The antibiotic-enhanced biofilmshad increased outer membrane protein A and were resistant to the anti-biofilm effect of azithromycin. CONCLUSIONS Some cephems increased the biomass of pre-established biofilms in the ranges of their sub-minimum inhibitory concentrations.The antibiotic-enhanced biofilmspossessed more virulent characteristics than normal biofilms. SIGNIFICANCE AND IMPACT OF THE STUDY Incomplete administration of certain cephems followingbiofilm-related Ac.baumannii infectionscould adversely cause exacerbated and chronic clinical results.
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Affiliation(s)
- K Yamabe
- Department of Social and Administrative Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Y Arakawa
- Department of Social and Administrative Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - M Shoji
- Department of Social and Administrative Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - K Miyamoto
- Department of Microbiology and Infection Control, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - T Tsuchiya
- Department of Microbiology and Infection Control, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - K Minoura
- Joint Research Center, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Y Akeda
- National Institute of Infectious Diseases, Tokyo, Japan
| | - K Tomono
- Osaka Institute of Public Health, Osaka, Japan
| | - M Onda
- Department of Social and Administrative Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
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Fukuoka K, Kurihara J, Mori M, Arakawa Y, Yoshioka E, Shofuda T, Matsushita Y, Hibiya Y, Honda S, Nakazawa A, Kiyotani C, Kagawa N, Yamasaki K, Ando R, Keino D, Miyairi Y, Akai T, Kanamori M, Ishida J, Park YS, Kawamura A, Sasaki A, Nishikawa R, Date I, Nagane M, Koh K, Ichimura K, Kanemura Y. MEDB-30. Subclassification of Group 3/4 medulloblastoma as a potential prognostic biomarker to reduce the dose of craniospinal irradiation in patients with metastatic tumors: A Japanese Pediatric Molecular Neuro-Oncology Group study. Neuro Oncol 2022. [PMCID: PMC9165094 DOI: 10.1093/neuonc/noac079.404] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
BACKGROUND: In patients with medulloblastoma, one of the most significant challenges is to reduce the dose of craniospinal irradiation (CSI) to minimize neurological sequelae in survivors. Molecular characterization of patients treated using lower-dose CSI rather than standard therapy is important for further reducing the treatment burden. METHODS: We conducted DNA methylation analysis using an Illumina Methylation EPIC array to investigate molecular prognostic markers in 38 patients with medulloblastoma who were registered in the Japan Pediatric Molecular Neuro-Oncology Group and were treated using lower-dose CSI rather than standard-dose radiation therapy. RESULTS: Among the patients, 23 were classified as having a “standard-risk” and 15 as having a “high-risk” according to the classic classification based on tumor resection rate and presence of metastasis, respectively. The median follow-up period was 71.5 months. The median CSI dose was 18 Gy in both groups, and 10 patients in the “high-risk” group received a CSI dose of 23.4 Gy or 24 Gy. Molecular subgrouping revealed the “standard-risk” cohort included 5 WNT, 2 SHH, and 16 Group 3/4 cases; all 15 patients in the “high-risk” cohort had Group 3/4 medulloblastoma. Among the patients with Group 3/4 medulloblastoma, 13 of the 16 “standard-risk” patients were subclassified as subtypes I, IV, VI, and VII, which were associated with a good prognosis according to the novel sub-subclassification among Group 3/4 medulloblastomas. However, only 6 of the 15 “high-risk” patients were included in the subtypes. The good prognostic subtype cases among “high-risk” cohort were all survived without recurrence, in contrast to a worse prognosis (5-year progression free survival=33.3%; p=0.01) of the other cases. CONCLUSION: Although these findings require validation in a larger cohort, the present findings suggest that the novel sub-subclassification of Group 3/4 medulloblastoma may be a promising prognostic biomarker for reducing the dose of CSI in patients with metastatic medulloblastoma.
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Affiliation(s)
- Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children’s Medical Center , Saitama , Japan
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children’s Medical Center , Saitama , Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children’s Medical Center , Saitama , Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children’s Medical Center , Saitama , Japan
| | - Ema Yoshioka
- Department of Biomedical Research and Innovation, Institute for Clinical Research, Osaka National Hospital, National Hospital Organization , Osaka , Japan
| | - Tomoko Shofuda
- Department of Biomedical Research and Innovation, Institute for Clinical Research, Osaka National Hospital, National Hospital Organization , Osaka , Japan
| | - Yuko Matsushita
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute , Tokyo , Japan
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine , Tokyo , Japan
| | - Yuko Hibiya
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute , Tokyo , Japan
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine , Tokyo , Japan
| | - Satoko Honda
- Department of Clinical Research, Saitama Children’s Medical Center , Saitama , Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children’s Medical Center , Saitama , Japan
| | - Chikako Kiyotani
- Children’s Cancer Center, National Center for Child Health and Development , Tokyo , Japan
| | - Naoki Kagawa
- Department of Neurosurgery, Osaka University Graduate School of Medicine , Osaka , Japan
| | - Kai Yamasaki
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital , Osaka , Japan
| | - Ryo Ando
- Department of Neurosurgery, Chiba Children’s Hospital , Chiba , Japan
| | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children's Medical Center , Yokohama , Japan
| | - Yosuke Miyairi
- Department of Neurosurgery, Nagano Children’s Hospital , Nagano , Japan
| | - Takuya Akai
- Departments of Neurosurgery, Graduate School of Medicine and Pharmaceutical Science, University of Toyama , Toyama , Japan
| | - Masayuki Kanamori
- Department of Neurosurgery, Tohoku University Graduate School of Medicine , Sendai , Japan
| | - Joji Ishida
- Department of Neurological Surgery, Okayama University Graduate School , Okayama , Japan
| | - Young-Soo Park
- Department of Neurosurgery Nara Medical University , Nara , Japan
| | - Atsufumi Kawamura
- Department of Neurosurgery, Hyogo Prefectural Kobe Children's Hospital , Kobe , Japan
| | - Atsushi Sasaki
- Department of Pathology, Saitama Medical University , Moroyama , Japan
| | - Ryo Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center , Hidaka , Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School , Okayama , Japan
| | - Motoo Nagane
- Department of Neurosurgery, Kyorin University Faculty of Medicine , Mitaka , Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children’s Medical Center , Saitama , Japan
| | - Koichi Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute , Tokyo , Japan
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine , Tokyo , Japan
| | - Yonehiro Kanemura
- Department of Biomedical Research and Innovation, Institute for Clinical Research, Osaka National Hospital, National Hospital Organization , Osaka , Japan
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Nishio M, Haseda M, Kanamori M, Arakawa Y, Kondo N. [The concept of social determinants of health in health promotion policies in Thailand, Sweden, England, USA, and Japan: A narrative review]. Nihon Koshu Eisei Zasshi 2022; 69:338-356. [PMID: 35296593 DOI: 10.11236/jph.21-105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objectives The Commission on Social Determinants of Health (CSDH) of the World Health Organization (WHO) recommends that national and municipal governments take adequate steps to "improve daily living conditions," "(create governance to) tackle the inequitable distribution of power, money, and resources," and "measure and understand the problem and assess the impact of" government actions. This study provides an analysis of the health promotion policies of Japan and other countries and examines their conformance to these recommendations, and offers suggestions for developing a conducive social environment for Japan's health promotion policies.Methods We reviewed grey literature on health promotion policies in Japan, the USA, England, Sweden, and Thailand, extracting the definitions of health inequalities and their characterization in each policy, and analyzing each document vis-á-vis the CSDH's three recommendations and "comprehensive national health equity surveillance framework."Results The health promotion policies of Japan, England, Sweden, and the USA had similar definitions of health inequality, emphasizing fairness and prioritizing the reduction of health inequality as the key strategy for health promotion. However, their primary approaches to improve daily living conditions varied: In Japan, the primary approach is to create opportunities for participation and ensure access to social resources. Meanwhile, the USA relies largely on objective assessments and scientific evidence-based actions. England focused on enhancing support for socially disadvantaged individuals and areas. In Sweden, a universal intervention based on life-course perspectives was stressed, while Thailand attached much value to a multi-sectoral collaboration. All these countries, however, had a health policy implementation plan in quest of the elimination of unfair distributions of power, money, and resources. The USA planned to monitor a total of 187 social factors, the largest number among the 6 subject countries. It also had a wide range of perspectives on health inequalities, including income and disability, as well as conducting assessments using information from outside the health sector, with items assessed at various levels, including individual, regional, and national policies.Conclusion With reference to these approaches in other countries, for Japan's health promotion policies, we recommend: (1) grasping of health inequalities from more diversified perspectives and adopting measures to address them, (2) setting targets based on multi-level social determinants of individual behavior and health status, including individual socioeconomic status, and (3) promoting collaborative initiatives and use of indicators with entities outside the health sector.
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Affiliation(s)
- Marisa Nishio
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University
| | - Maho Haseda
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University
| | - Mariko Kanamori
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University
- Department of Health and Social Behavior, School of Public Health, The University of Tokyo
| | - Yuki Arakawa
- Department of Health and Social Behavior, School of Public Health, The University of Tokyo
| | - Naoki Kondo
- Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University
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Yanagi M, Fukuoka K, Mori M, Arakawa Y, Matsushita Y, Hibiya Y, Tanami Y, Ichimura K, Hirato J, Nakazawa A, Kurihara J, Koh K. Prognostic Implication of DNA Methylation Signature in Atypical Choroid Plexus Papilloma With Intracranial Dissemination. J Pediatr Hematol Oncol 2022; 44:e844-e848. [PMID: 35180763 DOI: 10.1097/mph.0000000000002428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 01/09/2022] [Indexed: 11/26/2022]
Abstract
An underestimation of pathologic diagnosis could be expected if disseminated choroid plexus tumors (CPTs) are diagnosed as lower grade tumors. Thus, molecular diagnosis using genome-wide DNA methylation profiling may be useful for clarifying the malignant potential of the tumor entity. Herein, we report a 2.7-year-old girl of pathologically atypical choroid plexus papilloma with intracranial dissemination. She was treated without radiotherapy and has been well, without recurrence for 32 months following the diagnosis. Subsequently, after a year from the diagnosis, T-stochastic neighbor embedding analysis was performed on methylation data of the case and compared with those of reference data of CPTs, revealing that the case was separated from the cluster of "Plexus tumor subclass pediatric B," which includes a majority of choroid plexus carcinomas with the worst prognosis of these entities, and was categorized into the cluster of "Plexus tumor subclass pediatric A" consisting of choroid plexus papilloma and atypical choroid plexus papillomas diagnosed pathologically. Our case indicates the clinical significance of molecular confirmation for diagnosis among CPTs, particularly lower grade tumors with dissemination.
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Affiliation(s)
| | | | | | | | - Yuko Matsushita
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo
| | - Yuko Hibiya
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo
| | | | - Koichi Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo
| | - Junko Hirato
- Department of Pathology, Public Tomioka General Hospital, Gunma, Japan
| | | | - Jun Kurihara
- Neurosurgery, Saitama Children's Medical Center, Saitama
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Kocot A, Loska B, Arakawa Y, Merkel K. Structure of the twist-bend nematic phase with respect to the orientational molecular order of the thioether-linked dimers. Phys Rev E 2022; 105:044701. [PMID: 35590529 DOI: 10.1103/physreve.105.044701] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/09/2022] [Indexed: 06/15/2023]
Abstract
An analysis of the IR absorbance for the segmented functional groups of liquid crystal dimers mesogen and linker enabled the orientation order to be determined and information about the dipole interactions in the nematic and twist-bend nematic phases to be obtained. The long axis orientational order increases as the temperature decreases in the nematic phase, although much more slowly than for the classical nematics, and then reverses this trend in the twist-bend nematic phase due to the tilt of the molecules. In the nematic phase, the short axis of the molecule performs an isotropic uniform rotation and has a uniaxial alignment. In the twist-bend nematic phase, however, biaxial ordering occurs and grows significantly in accordance with the helical deformation of the director. Changes in the mean absorbance in the twist-bend nematic phase were observed: a decrease for the longitudinal dipole at the nematic-twist-bend nematic phase transition, thus emphasizing the antiparallel axial interaction of the dipoles, while the absorbance of the transverse dipoles remains unchanged up to 340 K, and then the latter become parallelly correlated.
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Affiliation(s)
- Antoni Kocot
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, Chorzów 41-500, Poland
| | - Barbara Loska
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, Chorzów 41-500, Poland
| | - Yuki Arakawa
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan
| | - Katarzyna Merkel
- Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia, 75 Pułku Piechoty 1a, Chorzów 41-500, Poland
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Arakawa Y, Shiba T, Igawa K, Sasaki S, Tsuji H. 4′-Alkylseleno-4-cyanobiphenyls, nSeCB: synthesis and substituent effects on the phase-transition and liquid crystalline behaviors. CrystEngComm 2022. [DOI: 10.1039/d2ce00551d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A homologous series of 4′-alkylseleno-4-cyanobiphenyls (nSeCB) was synthesized and their phase-transition behaviors were investigated and compared with those of the alkyl, alkoxy, and alkylthio homologs.
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Affiliation(s)
- Yuki Arakawa
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Takuma Shiba
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Kazunobu Igawa
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Shunsuke Sasaki
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France
| | - Hideto Tsuji
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
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Hosokawa T, Uchiyama M, Oshima K, Fukuoka K, Arakawa Y. The pitfall of bone scintigraphy in evaluating patients with osteosarcomas. Pediatr Int 2022; 64:e15319. [PMID: 36198395 DOI: 10.1111/ped.15319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/08/2022] [Accepted: 08/03/2022] [Indexed: 01/24/2023]
Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Mayuki Uchiyama
- Department of Radiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Koichi Oshima
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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Inoue K, Arakawa Y, Noguchi J, Irikura T, Watakabe M, Hiraki T, Honda M, Mitani Y, Mori M, Fukuoka K, Oshima K, Kawashima H, Kurihara J, Koh K. Successful perioperative management using prothrombin complex concentrates in patients with severe congenital protein C deficiency. Pediatr Blood Cancer 2022; 69:e29380. [PMID: 34665512 DOI: 10.1002/pbc.29380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 03/25/2021] [Revised: 08/21/2021] [Accepted: 09/16/2021] [Indexed: 11/09/2022]
Abstract
Perioperative management of severe congenital protein C deficiency remains unestablished. This deficiency is often treated with anticoagulants, such as warfarin. Although anticoagulants need to be perioperatively discontinued, there are few methods for the management of such patients. We adopted a method for administering prothrombin complex concentrates (PCC), which includes intermittent administration of inactive protein C (PPSB-HT), and examined its outcome as a perioperative management approach for severe congenital protein C deficiency. Three patients underwent our perioperative management six times. We monitored activity levels of protein C, factor IX, and so forth. These patients could be perioperatively managed with PCC treatment.
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Affiliation(s)
- Kyohei Inoue
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Jun Noguchi
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Tomoya Irikura
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Mai Watakabe
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Takamasa Hiraki
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Mamoru Honda
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuichi Mitani
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Koichi Oshima
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Hiroshi Kawashima
- Department of Pediatric Surgery, Saitama Children's Medical Center, Saitama, Japan
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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Tsuji H, Nogata S, Gamo H, Hikima K, Matsuda A, Arakawa Y. Synthesis, stereocomplex crystallization, homo-crystallization, and thermal properties and degradation of enantiomeric aromatic poly(lactic acid)s, poly(mandelic acid)s. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2021.109803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mitani Y, Arakawa Y, Niitsu T, Nakazawa A, Koh K. Oncologic emergency with infantile endotracheal anaplastic large cell lymphoma. Pediatr Int 2022; 64:e15327. [PMID: 36331225 DOI: 10.1111/ped.15327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/04/2022] [Accepted: 08/03/2022] [Indexed: 01/05/2023]
Affiliation(s)
- Yuichi Mitani
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Takehiro Niitsu
- Department of Critical Care Medicine, Saitama Children's Medical Center, Saitama, Japan
| | - Atsuko Nakazawa
- Department of Clinical Research and Pathology, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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Tsuji H, Nakayama K, Arakawa Y. Correction: Synthesis and stereocomplex formation of enantiomeric alternating copolymers with two types of chiral centers, poly(lactic acid-alt-2-hydroxybutanoic acid)s. RSC Adv 2022; 12:5280. [PMID: 35427098 PMCID: PMC8982007 DOI: 10.1039/d2ra90003c] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 11/25/2022] Open
Abstract
Correction for ‘Synthesis and stereocomplex formation of enantiomeric alternating copolymers with two types of chiral centers, poly(lactic acid-alt-2-hydroxybutanoic acid)s’ by Hideto Tsuji et al., RSC Adv., 2020, 10, 39000–39007. DOI: 10.1039/D0RA08351H.
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Affiliation(s)
- Hideto Tsuji
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Kazuya Nakayama
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Yuki Arakawa
- Department of Applied Chemistry and Life Science, Graduate School of Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
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Pytlarczyk M, Herman J, Arakawa Y, Tsuji H, Kula P. Deuterated Liquid Crystals – practical synthesis of deuterium labeled 4-alkyl-4″-isothiocyanato-[1,1ʹ:4ʹ,1″]terphenyls. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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