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Saito A, Tahara R, Hirose M, Kadota M, Hasegawa A, Kondo S, Kato H, Amano T, Yoshiki A, Ogura A, Kiyosawa H. Inter-subspecies mouse F1 hybrid embryonic stem cell lines newly established for studies of allelic imbalance in gene expression. Exp Anim 2024:24-0002. [PMID: 38447983 DOI: 10.1538/expanim.24-0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024] Open
Abstract
Allele-specific monoallelic gene expression is a unique phenomenon and a great resource for analyzing gene regulation. To study this phenomenon, we established new embryonic stem (ES) cell lines derived from F1 hybrid blastocysts from crosses between four mouse subspecies (Mus musculus domesticus, C57BL/6; M. musculus molossinus, MSM/Ms; M. musculus, PWK; M. musculuscastaneus, HMI/Ms) and analyzed the expression levels of undifferentiated pluripotent stem cell markers and karyotypes of each line. To demonstrate the utility of our cell lines, we analyzed the allele-specific expression pattern of the Inpp5d gene as an example. The allelic expression depended on the parental alleles; this dependence could be a consequence of differences in compatibility between cis- and trans-elements of the Inpp5d gene from different subspecies. The use of parental mice from four subspecies greatly enhanced genetic polymorphism. The F1 hybrid ES cells retained this polymorphism not only in the Inpp5d gene, but also at a genome-wide level. As we demonstrated for the Inpp5d gene, the established cell lines can contribute to the analysis of allelic expression imbalance based on the incompatibility between cis- and trans-elements and of phenotypes related to this incompatibility.
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Affiliation(s)
- Ayaka Saito
- Laboratory for Genome Science, Department of Life Science, Chiba Institute of Technology
| | - Ryosuke Tahara
- Laboratory for Genome Science, Department of Life Science, Chiba Institute of Technology
| | - Michiko Hirose
- Bioresource Engineering Division, BioResource Research Center, RIKEN
| | - Masayo Kadota
- Experimental Animal Division, BioResource Research Center, RIKEN
| | - Ayumi Hasegawa
- Bioresource Engineering Division, BioResource Research Center, RIKEN
| | - Shinji Kondo
- Transdisciplinary Research Integration Center, Research Organization of Information and Systems
| | - Hidemasa Kato
- Department of Developmental Biology and Functional Genomics, Graduate School of Medicine, Ehime University
| | - Takanori Amano
- Next Generation Human Disease Model Team, BioResource Research Center, RIKEN
| | - Atsushi Yoshiki
- Experimental Animal Division, BioResource Research Center, RIKEN
| | - Atsuo Ogura
- Bioresource Engineering Division, BioResource Research Center, RIKEN
| | - Hidenori Kiyosawa
- Laboratory for Genome Science, Department of Life Science, Chiba Institute of Technology
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Saito A, Kinoshita C, Sakai K, Sato K, Sakamoto KQ. Heart rate reduction during voluntary deep diving in free-ranging loggerhead sea turtles. J Exp Biol 2024; 227:jeb246334. [PMID: 38442390 PMCID: PMC10949068 DOI: 10.1242/jeb.246334] [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: 06/20/2023] [Accepted: 01/23/2024] [Indexed: 03/07/2024]
Abstract
Air-breathing vertebrates exhibit cardiovascular responses to diving including heart rate reduction (diving bradycardia). Field studies on aquatic mammals and birds have shown that the intensity of bradycardia can vary depending on diving behaviour, such as the depth of dives and dive duration. However, in aquatic reptiles, the variation in heart rate during deep dives under natural conditions has not been fully investigated. In this study, we released five loggerhead sea turtles (Caretta caretta) outfitted with recorders into the sea and recorded their electrocardiogram, depth, water temperature and longitudinal acceleration. After 3 days, the recorders automatically detached from the turtles. The heart rate signals were detected from the electrodes placed on the surface of the plastron. The mean (±s.d.) heart rate of 12.8±4.1 beats min-1 during dives was significantly lower than that of 20.9±4.1 beats min-1 during surface periods. Heart rate during dives varied with dive depth, although it remained lower than that at the surface. When the turtle dived deeper than 140 m, despite the relatively high flipper stroke rate (approximately 19 strokes min-1), the heart rate dropped rapidly to approximately 2 beats min-1 temporarily. The minimum instantaneous heart rate during dives was lower at deeper dive depths. Our results indicate that loggerhead sea turtles show variations in the intensity of diving bradycardia depending on their diving behaviour, similar to that shown by marine mammals and birds.
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Affiliation(s)
- Ayaka Saito
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Chihiro Kinoshita
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Kino Sakai
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Katsufumi Sato
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Kentaro Q. Sakamoto
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
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Saito A, Terai H, Kim T, Emoto K, Kawano R, Nakamura K, Hayashi H, Takaoka H, Ogata A, Kinoshita K, Ito F, Shigematsu L, Okada M, Fukushima T, Mitsuishi A, Shinozaki T, Ohgino K, Ikemura S, Yasuda H, Kawada I, Soejima K, Nishihara H, Fukunaga K. Clinical utility of the Oncomine Dx Target Test multi-CDx system and the possibility of utilizing those original sequence data. Cancer Med 2024; 13:e7077. [PMID: 38457233 PMCID: PMC10922029 DOI: 10.1002/cam4.7077] [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: 04/25/2023] [Revised: 09/14/2023] [Accepted: 09/26/2023] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Companion diagnostic tests play a crucial role in guiding treatment decisions for patients with non-small cell lung cancer (NSCLC). The Oncomine Dx Target Test (ODxTT) Multi-CDx System has emerged as a prominent companion diagnostic method. However, its efficacy in detecting driver gene mutations, particularly rare mutations, warrants investigation. AIMS This study aimed to assess the performance of the ODxTT in detecting driver gene mutations in NSCLC patients. Specifically, we aimed to evaluate its sensitivity in detecting epidermal growth factor receptor (EGFR) mutations, a key determinant of treatment selection in NSCLC. MATERIALS AND METHODS We conducted a retrospective analysis of NSCLC patients who underwent testing with the ODxTT at Keio University Hospital between May 2020 and March 2022. Patient samples were subjected to both DNA and RNA tests. Driver gene mutation status was assessed, and instances of missed mutations were meticulously examined. RESULTS Of the 90 patients, five had nucleic acid quality problems, while 85 underwent both DNA and RNA tests. Driver gene mutations were detected in 56/90 (62.2%) patients. Of the 34 patient specimens, driver mutations were not detected using the ODxTT; however, epidermal growth factor receptor (EGFR) mutations were detected using polymerase chain reaction-based testing in two patients, and a KRAS mutation was detected by careful examination of the sequence data obtained using the ODxTT in one patient. For the above three cases, carefully examining the gene sequence information obtained using the ODxTT could identify driver mutations that were not mentioned in the returned test results. Additionally, we confirmed comparable instances of overlook results for EGFR mutations in the dataset from South Korea, implying that this type of oversight could occur in other countries using the ODxTT. EGFR mutation was missed in ODxTT in Japan (6.3%, 2/32), South Korea (2.0%, 1/49), and overall (3.7%, 3/81). CONCLUSION Even if sufficient tumor samples are obtained, rare EGFR mutations (which are excluded from the ODxTT's genetic mutation list) might not be detected using the current ODxTT system due to the program used for sequence analysis. However, such rare EGFR mutations can still be accurately detected on ODxTT's sequence data using next-generation sequencing.
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Affiliation(s)
- Ayaka Saito
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Hideki Terai
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
- Cancer Center, School of MedicineKeio UniversityTokyoJapan
| | - Tae‐Jung Kim
- Department of Hospital Pathology, Yeouido St. Mary Hospital, College of MedicineThe Catholic University of KoreaSeoulSouth Korea
| | - Katsura Emoto
- Division of Diagnostic Pathology, School of MedicineKeio UniversityTokyoJapan
| | - Ryutaro Kawano
- Genomics Unit, Keio Cancer Center, School of MedicineKeio UniversityTokyoJapan
| | - Kohei Nakamura
- Genomics Unit, Keio Cancer Center, School of MedicineKeio UniversityTokyoJapan
| | - Hideyuki Hayashi
- Genomics Unit, Keio Cancer Center, School of MedicineKeio UniversityTokyoJapan
| | - Hatsuyo Takaoka
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Akihiko Ogata
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Katsuhito Kinoshita
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Fumimaro Ito
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Lisa Shigematsu
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Masahiko Okada
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Takahiro Fukushima
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Akifumi Mitsuishi
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Taro Shinozaki
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Keiko Ohgino
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Shinnosuke Ikemura
- Cancer Center, School of MedicineKeio UniversityTokyoJapan
- Department of Respiratory Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Hiroyuki Yasuda
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
| | - Ichiro Kawada
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
- Keio University Health CenterKeio UniversityTokyoJapan
| | - Kenzo Soejima
- Department of Respiratory Medicine, Graduate School of MedicineUniversity of YamanashiYamanashiJapan
- Clinical Translational Research CenterKeio University HospitalTokyoJapan
| | - Hiroshi Nishihara
- Division of Diagnostic Pathology, School of MedicineKeio UniversityTokyoJapan
| | - Koichi Fukunaga
- Department of Internal Medicine (Pulmonary Medicine), School of MedicineKeio UniversityTokyoJapan
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Nakagawara K, Morita A, Namkoong H, Terai H, Chubachi S, Asakura T, Tanaka H, Ito F, Matsuyama E, Kaji M, Saito A, Takaoka H, Okada M, Sunata K, Watase M, Yagi K, Ohgino K, Miyata J, Kamata H, Kawada I, Kobayashi K, Hirano T, Inoue T, Kagyo J, Shiomi T, Otsuka K, Miyao N, Odani T, Baba R, Arai D, Nakachi I, Ueda S, Funatsu Y, Koh H, Ishioka K, Takahashi S, Nakamura M, Sato T, Hasegawa N, Kitagawa Y, Kanai T, Ishii M, Fukunaga K. Longitudinal long COVID symptoms in Japanese patients after COVID-19 vaccinations. Vaccine X 2023; 15:100381. [PMID: 37731516 PMCID: PMC10507639 DOI: 10.1016/j.jvacx.2023.100381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 07/22/2023] [Accepted: 08/30/2023] [Indexed: 09/22/2023] Open
Abstract
We conducted a subgroup analysis of a study on the long-term effects of COVID-19 (long COVID) in Japan to assess the effect of vaccination on long COVID symptoms. We assessed the clinical course of 111 patients with long COVID at the time of vaccination. The follow-up period was one year from the onset of COVID-19 or until the administration of the third vaccine dose. Of the 111 patients, 15 (13.5%) reported improvement, four (3.6%) reported deterioration, and 92 (82.9%) reported no change in their long COVID symptoms after vaccination. The most common long COVID symptoms before vaccination were alopecia, dyspnea, muscle weakness, fatigue, and headache among participants whose symptoms improved. Reduced dyspnea and alopecia were the most frequently reported improvements in symptoms after vaccination. Some symptoms persisted, including sleep disturbance, myalgia, and hypersensitivity. Vaccination did not appear to have a clinically important effect on patients with long COVID symptoms.
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Affiliation(s)
- Kensuke Nakagawara
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Atsuho Morita
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ho Namkoong
- Department of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan
| | - Hideki Terai
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shotaro Chubachi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
- Department of Clinical Medicine (Laboratory of Bioregulatory Medicine), Kitasato University School of Pharmacy, Tokyo, Japan
- Department of Respiratory Medicine, Kitasato University, Kitasato Institute Hospital, Tokyo, Japan
| | - Hiromu Tanaka
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Fumimaro Ito
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Emiko Matsuyama
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Masanori Kaji
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ayaka Saito
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hatsuyo Takaoka
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Masahiko Okada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Keeya Sunata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Mayuko Watase
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kazuma Yagi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Keiko Ohgino
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Jun Miyata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ichiro Kawada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Keigo Kobayashi
- Department of Internal Medicine, Sano Kosei General Hospital, Tochigi, Japan
| | - Toshiyuki Hirano
- Department of Internal Medicine, Sano Kosei General Hospital, Tochigi, Japan
| | - Takashi Inoue
- Department of Internal Medicine, Sano Kosei General Hospital, Tochigi, Japan
| | - Junko Kagyo
- Department of Internal Medicine, Keiyu Hospital, Kanagawa, Japan
| | - Tetsuya Shiomi
- Department of Internal Medicine, Keiyu Hospital, Kanagawa, Japan
| | - Kengo Otsuka
- Department of Internal Medicine, Nihon Koukan Hospital, Kanagawa, Japan
| | - Naoki Miyao
- Department of Internal Medicine, Nihon Koukan Hospital, Kanagawa, Japan
| | - Toshio Odani
- Department of Rheumatology, National Hospital Organization Hokkaido Medical Center, Hokkaido, Japan
| | - Rie Baba
- Pulmonary Division, Department Internal Medicine, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Daisuke Arai
- Pulmonary Division, Department Internal Medicine, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Ichiro Nakachi
- Pulmonary Division, Department Internal Medicine, Saiseikai Utsunomiya Hospital, Tochigi, Japan
| | - Soichiro Ueda
- Department of Internal Medicine, Saitama Medical Center, Saitama, Japan
| | - Yohei Funatsu
- Division of Pulmonary Medicine, Department of Internal Medicine, Tachikawa Hospital, Tokyo, Japan
| | - Hidefumi Koh
- Division of Pulmonary Medicine, Department of Internal Medicine, Tachikawa Hospital, Tokyo, Japan
| | - Kota Ishioka
- Department of Pulmonary Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - Saeko Takahashi
- Department of Pulmonary Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - Morio Nakamura
- Department of Pulmonary Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - Toshiro Sato
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naoki Hasegawa
- Department of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan
| | - Yuko Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Makoto Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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Terai H, Ishii M, Takemura R, Namkoong H, Shimamoto K, Masaki K, Tanosaki T, Chubachi S, Matsuyama E, Hayashi R, Shimada T, Shigematsu L, Ito F, Kaji M, Takaoka H, Kurihara M, Nakagawara K, Tomiyasu S, Sasahara K, Saito A, Otake S, Azekawa S, Okada M, Fukushima T, Morita A, Tanaka H, Sunata K, Asaoka M, Nishie M, Shinozaki T, Ebisudani T, Akiyama Y, Mitsuishi A, Nakayama S, Ogawa T, Sakurai K, Irie M, Yagi K, Ohgino K, Miyata J, Kabata H, Ikemura S, Kamata H, Yasuda H, Kawada I, Kimura R, Kondo M, Iwasaki T, Ishida N, Hiruma G, Miyazaki N, Ishibashi Y, Harada S, Fujita T, Ito D, Bun S, Tabuchi H, Kanzaki S, Shimizu E, Fukuda K, Yamagami J, Kobayashi K, Hirano T, Inoue T, Haraguchi M, Kagyo J, Shiomi T, Lee H, Sugihara K, Omori N, Sayama K, Otsuka K, Miyao N, Odani T, Watase M, Mochimaru T, Satomi R, Oyamada Y, Masuzawa K, Asakura T, Nakayama S, Suzuki Y, Baba R, Okamori S, Arai D, Nakachi I, Kuwahara N, Fujiwara A, Oakada T, Ishiguro T, Isosno T, Makino Y, Mashimo S, Kaido T, Minematsu N, Ueda S, Minami K, Hagiwara R, Manabe T, Fukui T, Funatsu Y, Koh H, Yoshiyama T, Kokuto H, Kusumoto T, Oashi A, Miyawaki M, Saito F, Tani T, Ishioka K, Takahashi S, Nakamura M, Harada N, Sasano H, Goto A, Kusaka Y, Ohba T, Nakano Y, Nishio K, Nakajima Y, Suzuki S, Yoshida S, Tateno H, Kodama N, Shunsuke M, Sakamoto S, Okamoto M, Nagasaki Y, Umeda A, Miyagawa K, Shimada H, Hagimura K, Nagashima K, Sato T, Sato Y, Hasegawa N, Takebayashi T, Nakahara J, Mimura M, Ogawa K, Shimmura S, Negishi K, Tsubota K, Amagai M, Goto R, Ibuka Y, Kitagawa Y, Kanai T, Fukunaga K. Comprehensive analysis of long COVID in a Japanese nationwide prospective cohort study. Respir Investig 2023; 61:802-814. [PMID: 37783167 DOI: 10.1016/j.resinv.2023.08.008] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 07/15/2023] [Accepted: 08/16/2023] [Indexed: 10/04/2023]
Abstract
BACKGROUND Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread rapidly since 2019, and the number of reports regarding long COVID has increased. Although the distribution of long COVID depends on patient characteristics, epidemiological data on Japanese patients are limited. Hence, this study aimed to investigate the distribution of long COVID in Japanese patients. This study is the first nationwide Japanese prospective cohort study on long COVID. METHODS This multicenter, prospective cohort study enrolled hospitalized COVID-19 patients aged ≥18 years at 26 Japanese medical institutions. In total, 1200 patients were enrolled. Clinical information and patient-reported outcomes were collected from medical records, paper questionnaires, and smartphone applications. RESULTS We collected data from 1066 cases with both medical records and patient-reported outcomes. The proportion of patients with at least one symptom decreased chronologically from 93.9% (947/1009) during hospitalization to 46.3% (433/935), 40.5% (350/865), and 33.0% (239/724) at 3, 6, and 12 months, respectively. Patients with at least one long COVID symptom showed lower quality of life and scored higher on assessments for depression, anxiety, and fear of COVID-19. Female sex, middle age (41-64 years), oxygen requirement, and critical condition during hospitalization were risk factors for long COVID. CONCLUSIONS This study elucidated the symptom distribution and risks of long COVID in the Japanese population. This study provides reference data for future studies of long COVID in Japan.
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Affiliation(s)
- Hideki Terai
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Keio Cancer Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Makoto Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Furocho, Chikusa Ward, Nagoya, Aichi, 466-8550, Japan
| | - Ryo Takemura
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Ho Namkoong
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Infectious Diseases, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kyoko Shimamoto
- Keio Global Research Institute, Keio University, 2-15-45 Mita, Minato-ku, Tokyo, 108-8345, Japan
| | - Katsunori Masaki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takae Tanosaki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shotaro Chubachi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Emiko Matsuyama
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Reina Hayashi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takashi Shimada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Lisa Shigematsu
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Fumimaro Ito
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masanori Kaji
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hatsuyo Takaoka
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Momoko Kurihara
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kensuke Nakagawara
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Saki Tomiyasu
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kotaro Sasahara
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Ayaka Saito
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shiro Otake
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shuhei Azekawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masahiko Okada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takahiro Fukushima
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Atsuho Morita
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hiromu Tanaka
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Keeya Sunata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masato Asaoka
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Miyuki Nishie
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Taro Shinozaki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toshiki Ebisudani
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yuto Akiyama
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Akifumi Mitsuishi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shingo Nakayama
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takunori Ogawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kaori Sakurai
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Misato Irie
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kazuma Yagi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Keiko Ohgino
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Jun Miyata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hiroki Kabata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shinnosuke Ikemura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hiroyuki Yasuda
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Ichiro Kawada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Ryusei Kimura
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masahiro Kondo
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toshiki Iwasaki
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Noriyuki Ishida
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Gaku Hiruma
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Naoki Miyazaki
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yoshiki Ishibashi
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Sei Harada
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takanori Fujita
- Department of Health Policy and Management, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Daisuke Ito
- Department of Physiology/Memory Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shogyoku Bun
- Department of Neuropsychiatry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hajime Tabuchi
- Department of Neuropsychiatry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Sho Kanzaki
- Department of Otolaryngology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Eisuke Shimizu
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Keitaro Fukuda
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Jun Yamagami
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Keigo Kobayashi
- Department of Internal Medicine, Sano Kosei General Hospital, 1728 Horigomecho, Sano, Tochigi, 327-8511, Japan
| | - Toshiyuki Hirano
- Department of Internal Medicine, Sano Kosei General Hospital, 1728 Horigomecho, Sano, Tochigi, 327-8511, Japan
| | - Takashi Inoue
- Department of Internal Medicine, Sano Kosei General Hospital, 1728 Horigomecho, Sano, Tochigi, 327-8511, Japan
| | - Mizuha Haraguchi
- Department of Internal Medicine, Keiyu Hospital, Kanagawa, 3-7-3 Minatomirai, Nishi-ku, Yokohama, Kanagawa, 220-0012, Japan
| | - Junko Kagyo
- Department of Internal Medicine, Keiyu Hospital, Kanagawa, 3-7-3 Minatomirai, Nishi-ku, Yokohama, Kanagawa, 220-0012, Japan
| | - Tetsuya Shiomi
- Department of Internal Medicine, Keiyu Hospital, Kanagawa, 3-7-3 Minatomirai, Nishi-ku, Yokohama, Kanagawa, 220-0012, Japan
| | - Ho Lee
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Division of Pulmonary Medicine, Kawasaki Municipal Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan
| | - Kai Sugihara
- Division of Pulmonary Medicine, Kawasaki Municipal Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan
| | - Nao Omori
- Division of Pulmonary Medicine, Kawasaki Municipal Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan
| | - Koichi Sayama
- Division of Pulmonary Medicine, Kawasaki Municipal Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa, 210-0013, Japan
| | - Kengo Otsuka
- Department of Internal Medicine, Nihon Koukan Hospital, 1-2-1 Kokandori, Kawasaki-ku, Kawasaki, Kanagawa, 210-0852, Japan
| | - Naoki Miyao
- Department of Internal Medicine, Nihon Koukan Hospital, 1-2-1 Kokandori, Kawasaki-ku, Kawasaki, Kanagawa, 210-0852, Japan
| | - Toshio Odani
- Department of Rheumatology, National Hospital Organization Hokkaido Medical Center, 7-1-1 Yamanote 5 Jo, Nishi-ku, Sapporo, Hokkaido, 063-0005, Japan
| | - Mayuko Watase
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Respiratory Medicine, National Hospital Organisation Tokyo Medical Center, 2-5-1 Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan
| | - Takao Mochimaru
- Department of Respiratory Medicine, National Hospital Organisation Tokyo Medical Center, 2-5-1 Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan
| | - Ryosuke Satomi
- Department of Respiratory Medicine, National Hospital Organisation Tokyo Medical Center, 2-5-1 Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan
| | - Yoshitaka Oyamada
- Department of Respiratory Medicine, National Hospital Organisation Tokyo Medical Center, 2-5-1 Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan
| | - Keita Masuzawa
- Department of Respiratory Medicine, Kitasato University Kitasato Institute Hospital, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
| | - Takanori Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Respiratory Medicine, Kitasato University Kitasato Institute Hospital, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
| | - Sohei Nakayama
- Department of Respiratory Medicine, Kitasato University Kitasato Institute Hospital, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
| | - Yusuke Suzuki
- Department of Respiratory Medicine, Kitasato University Kitasato Institute Hospital, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
| | - Rie Baba
- Pulmonary Division, Department Internal Medicine, Saiseikai Utsunomiya Hospital, 911-1 Takebayashimachi, Utsunomiya, Tochigi, 321-0974, Japan
| | - Satoshi Okamori
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Pulmonary Division, Department Internal Medicine, Saiseikai Utsunomiya Hospital, 911-1 Takebayashimachi, Utsunomiya, Tochigi, 321-0974, Japan
| | - Daisuke Arai
- Pulmonary Division, Department Internal Medicine, Saiseikai Utsunomiya Hospital, 911-1 Takebayashimachi, Utsunomiya, Tochigi, 321-0974, Japan
| | - Ichiro Nakachi
- Pulmonary Division, Department Internal Medicine, Saiseikai Utsunomiya Hospital, 911-1 Takebayashimachi, Utsunomiya, Tochigi, 321-0974, Japan
| | - Naota Kuwahara
- Department of Medicine, Division of Allergology and Respiratory Medicine, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Koto-ku, Tokyo, 135-8577, Japan
| | - Akiko Fujiwara
- Department of Medicine, Division of Allergology and Respiratory Medicine, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Koto-ku, Tokyo, 135-8577, Japan
| | - Takenori Oakada
- Department of Medicine, Division of Allergology and Respiratory Medicine, Showa University Koto Toyosu Hospital, 5-1-38 Toyosu, Koto-ku, Tokyo, 135-8577, Japan
| | - Takashi Ishiguro
- Department of Respiratory Medicine, Saitama Cardiovascular and Respiratory Center, 1696 Itai, Kumagaya, Saitama, 360-0197, Japan
| | - Taisuke Isosno
- Department of Respiratory Medicine, Saitama Cardiovascular and Respiratory Center, 1696 Itai, Kumagaya, Saitama, 360-0197, Japan
| | - Yasushi Makino
- Department of Respiratory Medicine, Toyohashi Municipal Hospital, 50 Hachikennishi, Aotakecho, Toyohashi, Aichi, 441-8570, Japan
| | - Shuko Mashimo
- Department of Respiratory Medicine, Toyohashi Municipal Hospital, 50 Hachikennishi, Aotakecho, Toyohashi, Aichi, 441-8570, Japan
| | - Tatsuya Kaido
- Department of Respiratory Medicine, Toyohashi Municipal Hospital, 50 Hachikennishi, Aotakecho, Toyohashi, Aichi, 441-8570, Japan
| | - Naoto Minematsu
- Department of Internal Medicine, Hino Municipal Hospital, 4-3-1, Tamadaira, Hino-city, Tokyo, 191-0062, Japan
| | - Soichiro Ueda
- Department of Internal Medicine, Saitama Medical Center, 1981 Kamoda, Kawagoeshi, Saitama, 350-8550, Japan
| | - Kazuhiro Minami
- Department of Internal Medicine, Saitama Medical Center, 1981 Kamoda, Kawagoeshi, Saitama, 350-8550, Japan
| | - Rie Hagiwara
- Department of Internal Medicine, Saitama Medical Center, 1981 Kamoda, Kawagoeshi, Saitama, 350-8550, Japan
| | - Tadashi Manabe
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Division of Pulmonary Medicine, Department of Internal Medicine, Tachikawa Hospital, 4-2-22 Nishikicho, Tachikawa, Tokyo, 190-8531, Japan
| | - Takahiro Fukui
- Division of Pulmonary Medicine, Department of Internal Medicine, Tachikawa Hospital, 4-2-22 Nishikicho, Tachikawa, Tokyo, 190-8531, Japan
| | - Yohei Funatsu
- Division of Pulmonary Medicine, Department of Internal Medicine, Tachikawa Hospital, 4-2-22 Nishikicho, Tachikawa, Tokyo, 190-8531, Japan
| | - Hidefumi Koh
- Division of Pulmonary Medicine, Department of Internal Medicine, Tachikawa Hospital, 4-2-22 Nishikicho, Tachikawa, Tokyo, 190-8531, Japan
| | - Takashi Yoshiyama
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8522, Japan
| | - Hiroyuki Kokuto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-8522, Japan
| | - Tatsuya Kusumoto
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Pulmonary Medicine, Eiju General Hospital, 2-23-16 Higashiueno, Taito-ku, Tokyo, 110-8645, Japan
| | - Ayano Oashi
- Department of Pulmonary Medicine, Eiju General Hospital, 2-23-16 Higashiueno, Taito-ku, Tokyo, 110-8645, Japan
| | - Masayoshi Miyawaki
- Department of Pulmonary Medicine, Eiju General Hospital, 2-23-16 Higashiueno, Taito-ku, Tokyo, 110-8645, Japan
| | - Fumitake Saito
- Department of Pulmonary Medicine, Eiju General Hospital, 2-23-16 Higashiueno, Taito-ku, Tokyo, 110-8645, Japan
| | - Tetsuo Tani
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Pulmonary Medicine, Tokyo Saiseikai Central Hospital, 1-4-17 Mita, Minato-ku, Tokyo, 108-0073, Japan
| | - Kota Ishioka
- Department of Pulmonary Medicine, Tokyo Saiseikai Central Hospital, 1-4-17 Mita, Minato-ku, Tokyo, 108-0073, Japan
| | - Saeko Takahashi
- Department of Pulmonary Medicine, Tokyo Saiseikai Central Hospital, 1-4-17 Mita, Minato-ku, Tokyo, 108-0073, Japan
| | - Morio Nakamura
- Department of Pulmonary Medicine, Tokyo Saiseikai Central Hospital, 1-4-17 Mita, Minato-ku, Tokyo, 108-0073, Japan
| | - Norihiro Harada
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hitoshi Sasano
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Ai Goto
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yu Kusaka
- Department of Respiratory Medicine, Ome Municipal General Hospital, 4-16-5, Higashiome, Ome, Tokyo, 198-0042, Japan
| | - Takehiko Ohba
- Department of Respiratory Medicine, Ome Municipal General Hospital, 4-16-5, Higashiome, Ome, Tokyo, 198-0042, Japan
| | - Yasushi Nakano
- Department of Pulmonary Medicine, Kawasaki Municipal Ida Hospital, 2-27-1 Ida, Nakahara-ku, Kawasaki-shi, Kanagawa, 211-0035, Japan
| | - Kazumi Nishio
- Department of Pulmonary Medicine, Kawasaki Municipal Ida Hospital, 2-27-1 Ida, Nakahara-ku, Kawasaki-shi, Kanagawa, 211-0035, Japan
| | - Yukiko Nakajima
- Department of Infectious Disease, Kawasaki Municipal Ida Hospital, 2-27-1 Ida, Nakahara-ku, Kawasaki-shi, Kanagawa, 211-0035, Japan
| | - Shoji Suzuki
- Department of Pulmonary Medicine, Saitama City Hospital, 2460 Mimuro, Midori-ku, Saitama, 336-8522, Japan
| | - Shuichi Yoshida
- Department of Pulmonary Medicine, Saitama City Hospital, 2460 Mimuro, Midori-ku, Saitama, 336-8522, Japan
| | - Hiroki Tateno
- Department of Pulmonary Medicine, Saitama City Hospital, 2460 Mimuro, Midori-ku, Saitama, 336-8522, Japan
| | - Nobuhiro Kodama
- Department of General Internal Medicine, Fukuoka Tokushukai Hospital, 4-5 Sugukita, Kasuga, Fukuoka, 816-0864, Japan
| | - Maeda Shunsuke
- Department of General Internal Medicine, Fukuoka Tokushukai Hospital, 4-5 Sugukita, Kasuga, Fukuoka, 816-0864, Japan
| | - Satoshi Sakamoto
- Department of Internal Medicine, Division of Respirology, Neurology, and Rheumatology, Kurume University School of Medicine, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - Masaki Okamoto
- Department of Internal Medicine, Division of Respirology, Neurology, and Rheumatology, Kurume University School of Medicine, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan; Department of Respirology, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
| | - Yoji Nagasaki
- Department of Infectious Disease and Clinical Research Center, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
| | - Akira Umeda
- Department of Respiratory Medicine, International University of Health and Welfare Shioya Hospital, 2600-1 Kitakanemaru, Otawara, Tochigi, 324-8501, Japan
| | - Kazuya Miyagawa
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Otawara, Tochigi, 324-8501, Japan
| | - Hisato Shimada
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Otawara, Tochigi, 324-8501, Japan
| | - Kazuto Hagimura
- Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kengo Nagashima
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toshiro Sato
- Department of Organoid Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yasunori Sato
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Naoki Hasegawa
- Department of Infectious Diseases, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toru Takebayashi
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Jin Nakahara
- Department of Neurology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masaru Mimura
- Department of Neuropsychiatry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kaoru Ogawa
- Department of Otolaryngology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shigeto Shimmura
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kazuno Negishi
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masayuki Amagai
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Rei Goto
- Graduate School of Business Administration, Keio University, 4-1-1 Hiyoshi Kohoku-ku, Yokohama, Kanagawa, 223-8526, Japan
| | - Yoko Ibuka
- Faculty of Economics, Keio University, 2-15-45 Mita, Minato-ku, Tokyo, 108-8345, Japan
| | - Yuko Kitagawa
- Department of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology Department of Internal Medicine, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
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Saito A, Yamashita E, Sakurai U, Hirasawa A, Tanioka M, Tamura K, Umezawa S. A case of ovarian carcinosarcoma with a germline pathogenic variant of BRCA2 involving a perforated appendix with an abscess. J Obstet Gynaecol Res 2023; 49:2553-2557. [PMID: 37461372 DOI: 10.1111/jog.15736] [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: 02/27/2023] [Accepted: 06/24/2023] [Indexed: 10/03/2023]
Abstract
We report a case of rare and aggressive ovarian carcinosarcoma with a germline pathogenic BRCA2 variant. A patient with a history of breast cancer who developed an inflammatory ovarian tumor with peritonitis carcinomatosis involving the appendix suffered from cachexia. Following three cycles of weekly paclitaxel and carboplatin chemotherapy, emergency surgery was required owing to sepsis. Bilateral salpingo-oophorectomy, total hysterectomy, appendectomy, and small intestine adhesiolysis were performed. Histologically, the tumor comprised an admixture of carcinomatous and sarcomatous components, with involvement of the appendix, which had caused perforation and abscess formation. The final diagnosis was ovarian carcinosarcoma with a germline pathogenic BRCA2 variant, c.658_659del (p.Val220fs). The patient responded completely to adjuvant chemotherapy. A combination of chemotherapy and surgery might be beneficial to patients with ovarian carcinosarcoma and germline pathogenic BRCA2 variants with a poor general condition. This is the first report of ovarian carcinosarcoma with a germline pathogenic BRCA2 variant that responded favorably to chemotherapy.
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Affiliation(s)
- Ayaka Saito
- Department of Obstetrics and Gynecology, Japanese Red Cross Musashino Hospital, Tokyo, Japan
- Department of Clinical Genomic Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Eiko Yamashita
- Department of Radiology, Japanese Red Cross Musashino Hospital, Tokyo, Japan
| | - Urara Sakurai
- Department of Pathology, Japanese Red Cross Musashino Hospital, Tokyo, Japan
| | - Akira Hirasawa
- Department of Clinical Genomic Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
- Unit of Medical Genetics, Japanese Red Cross Musashino Hospital, Tokyo, Japan
| | - Maki Tanioka
- Medical AI Project, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kazuya Tamura
- Department of Obstetrics and Gynecology, Japanese Red Cross Musashino Hospital, Tokyo, Japan
| | - Satoshi Umezawa
- Department of Obstetrics and Gynecology, Japanese Red Cross Musashino Hospital, Tokyo, Japan
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Imano N, Kawahara D, Nishioka R, Koike K, Katsuta T, Hirokawa J, Saito A, Nishibuchi I, Murakami Y, Nagata Y. Predictive Modeling of Radiation Pneumonitis Induced by Chemoradiotherapy for Locally Advanced Non-Small Cell Lung Cancer Using Radiomics and Clinical Features. Int J Radiat Oncol Biol Phys 2023; 117:e26. [PMID: 37784995 DOI: 10.1016/j.ijrobp.2023.06.704] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The purpose of this study is to establish a prediction model for the development of grade 2 or higher radiation pneumonitis (RP) using radiomics analysis of pretreatment CT images, PET images, and dose distribution, in addition to clinical factors, in patients with locally advanced non-small cell lung cancer (NSCLC) treated with radical chemoradiotherapy. MATERIALS/METHODS We retrospectively evaluated 128 cases of locally advanced NSCLC treated with radical radiotherapy at our institution from 2008 to 2021. Clinical factors included age, sex, performance status (PS), KL-6, smoking history, histological type, clinical stage, and total radiation dose. Radiomics analysis was performed by analyzing treatment planning CT images, PET images, and dose distribution, and Rad-score (Radiomics-score) was calculated for the extracted features using Lasso-Cox regression. Rad-score (Radiomics-score) was calculated by Lasso-Cox regression for the extracted features. Risk factors were selected by univariate/multivariate analysis of clinical factors and Rad-score. Three models for predicting RP were developed from the identified risk factors using Nomogram: Clinical, Rad-score, and Combined model. The model was evaluated using area under the curve (AUC) based on receiver operating characteristic (ROC) curves and concordance index (C-index). RP was evaluated using the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. The cumulative incidence of Grade 2 or higher RP was evaluated using the Kaplan-Meier method. RESULTS Of the 128 cases, grade 2 or higher RP was observed in 50 cases (39%). Regarding clinical factors, gender, smoking status, and histology were selected as significant predictors of RP. Lasso-Cox analysis of radiomics features selected 11 features from CT images, 7 features from PET images, and 16 features from dose distribution as predictors of RP, yielding a total of 34 factors. The combined model (C-index: 0.96, AUC: 0.92) showed the best discrimination performance compared to the clinical model (C-index: 0.73, AUC: 0.56) and the Rad-score model (C-index: 0.87, AUC: 0.92). Risk classification using the combined model showed that the 1-year cumulative incidence of grade 2 or higher RP was 65% in the high-risk group, significantly higher than 15% in the low-risk group (p<0.001). CONCLUSION The combined model with Rad-score and clinical factors can predict grade 2 or higher RP in NSCLC patients with high accuracy.
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Affiliation(s)
- N Imano
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - D Kawahara
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - R Nishioka
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Koike
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Katsuta
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - J Hirokawa
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - A Saito
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - I Nishibuchi
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Murakami
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Nagata
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
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Yasuda M, Saito A, Goto T, Yamamoto R, Liu K, Kuriyama A, Kondo Y, Kasugai D. Challenges hindering emergency physicians; involvement in multicenter collaborative studies in Japan: A nationwide survey analysis. Acute Med Surg 2023; 10:e906. [PMID: 38020489 PMCID: PMC10665775 DOI: 10.1002/ams2.906] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
Aim Multicenter collaborative research accelerates patient recruitment and strengthens evidence. Nevertheless, the factors influencing emergency and critical care physicians' involvement in such research in Japan remain unclear. Methods A nationwide web-based survey conducted in early 2023 targeted emergency physicians working a minimum of 3 days per week in Japan. The survey descriptively assessed their backgrounds, work and research environments, experiences, and perceived impediments and motivators for multicenter research. Results Of the 387 respondents, 348 were included in the study, yielding a 5.1% response rate. Women comprised 11% of the participants; 33% worked in university hospitals, 65% served in both emergency departments and intensive care units, and 54% did shift work. Only 12% had designated research time during working hours, with a median of 1 hour per week (interquartile range 0-5 h), including time outside of work. While 73% had participated in multicenter research, 58% noted barriers to participation. The key obstacles were excessive data entry (72%), meeting time constraints (59%), ethical review at each facility (50%), and unique sample collection, such as bronchoalveolar lavage specimens or pathological tissues (51%). The major incentives were networking (70%), data sets reuse (65%), feedback on research results (63%), and recognition from academic societies (63%). Financial rewards were not highly prioritized (38%). Conclusions While valuing clinical research, emergency physicians face barriers, especially data entry burden and limited research time. Networking and sharing research findings motivate them. These insights can guide strategies to enhance collaborative research in emergency and critical care in Japan.
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Affiliation(s)
- Manaho Yasuda
- Faculty of MedicineOsaka Metropolitan UniversityOsakaJapan
- TXP Medical Co. Ltd.TokyoJapan
| | - Ayaka Saito
- TXP Medical Co. Ltd.TokyoJapan
- Saku Central Hospital Advanced Care CenterSakuJapan
| | | | - Ryohei Yamamoto
- Center for Innovative Research for Communities and Clinical Excellence (CIRC2LE)Fukushima Medical UniversityFukushimaJapan
| | - Keibun Liu
- Critical Care Research Group, The Prince Charles HospitalChermsideQueenslandAustralia
- Institute for Molecular BioscienceThe University of QueenslandChermsideQueenslandAustralia
- Non‐Profit Organization, ICU Collaboration NetworkTokyoJapan
| | - Akira Kuriyama
- Department of Primary Care and Emergency MedicineKyoto University Graduate School of MedicineKyotoJapan
| | - Yutaka Kondo
- Department of Emergency and Critical Care MedicineJuntendo University Urayasu HospitalUrayasuJapan
| | - Daisuke Kasugai
- Department of Emergency and Critical Care MedicineNagoya University Graduate School of MedicineNagoyaJapan
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Shinde T, Saito A, Okada K, Wakasa M, Kimoto M, Kamada T, Shibata K, Okura K, Sato H, Takahashi Y. Influence of lower extremity rotation on knee kinematics in single-leg landing. Phys Ther Sport 2022; 58:87-92. [DOI: 10.1016/j.ptsp.2022.10.002] [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] [Received: 03/12/2022] [Revised: 10/02/2022] [Accepted: 10/03/2022] [Indexed: 11/29/2022]
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Ozawa T, Terai H, Kajino A, Otake S, Saito A, Nishie M, Kishino Y, Kamata H, Hayashida K, Ishii M, Fukunaga K. Apixaban-Associated Diffuse Alveolar Hemorrhage in an Elderly Man with Multiple Complications. Am J Case Rep 2022; 23:e937809. [DOI: 10.12659/ajcr.937809] [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: 11/05/2022]
Affiliation(s)
- Takuya Ozawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hideki Terai
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Akiyoshi Kajino
- Division of Cardiology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shiro Otake
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ayaka Saito
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Miyuki Nishie
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yoshikazu Kishino
- Division of Cardiology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kentaro Hayashida
- Division of Cardiology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Makoto Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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Matsumura T, Hashimoto H, Sekimizu M, Saito A, Asakura M, Kimura K, Iwata Y. VP.59 A single-arm, open-label, multicenter study of tranilast for advanced heart failure in patients with muscular dystrophy. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.253] [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: 11/07/2022]
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12
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Takaoka H, Terai H, Emoto K, Shigematsu L, Ito F, Saito A, Okada M, Ohgino K, Ikemura S, Yasuda H, Nakachi I, Kawada I, Fukunaga K, Soejima K. Long-Term Treatment-Free Survival After Multimodal Therapy in a Patient with Stage IV Lung Adenocarcinoma. Onco Targets Ther 2022; 15:981-989. [PMID: 36134388 PMCID: PMC9482961 DOI: 10.2147/ott.s375959] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 09/06/2022] [Indexed: 11/23/2022] Open
Abstract
We report the first case of a patient with non-small cell lung cancer (NSCLC) with malignant pleural effusion (MPE) who achieved disease- and treatment-free survival for nearly 10 years. A 50-year-old man was diagnosed with NSCLC with MPE and underwent chemotherapy and salvage thoracic surgery. The patient received chemotherapy with cisplatin, pemetrexed, and bevacizumab, and a partial response was achieved. After informed consent was obtained from the patient, right middle lobectomy was performed to achieve local tumor control. Postoperative adjuvant chemotherapy with pemetrexed and bevacizumab was discontinued after almost 1 year of chemotherapy due to side effects such as diarrhea and muscle weakness. The patient has survived without recurrence of lung cancer for more than 11 years after being diagnosed and nearly 10 years after discontinuing chemotherapy.
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Affiliation(s)
- Hatsuyo Takaoka
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hideki Terai
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Katsura Emoto
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Lisa Shigematsu
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Fumimaro Ito
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ayaka Saito
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Masahiko Okada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Keiko Ohgino
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shinnosuke Ikemura
- Department of Respiratory Medicine, Yamanashi University School of Medicine, Yamanashi, Japan
| | - Hiroyuki Yasuda
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ichiro Nakachi
- Pulmonary Division, Department of Internal Medicine, Saiseikai Utsunomiya Hospital, Utsunomiya, Japan
| | - Ichiro Kawada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kenzo Soejima
- Department of Respiratory Medicine, Yamanashi University School of Medicine, Yamanashi, Japan
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Shimoi T, Saito A, Charvat H, Matsuda T, Yonemori K. 1523P Incidence and geographic distribution of bone and soft tissue sarcoma in Japan using a nationwide population-based analysis: 69,734 cases. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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14
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Saito A, Kinoshita C, Kawai M, Fukuoka T, Sato K, Sakamoto KQ. Effects of a parasympathetic blocker on the heart rate of loggerhead turtles during voluntary diving. J Exp Biol 2022; 225:275083. [PMID: 35441228 DOI: 10.1242/jeb.243922] [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] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 04/08/2022] [Indexed: 11/20/2022]
Abstract
Diving bradycardia is a reduction in the heart rate mediated by the parasympathetic system during diving. Although diving bradycardia is pronounced in aquatic mammals and birds, the existence of this response in aquatic reptiles, including sea turtles, remains under debate. Using the parasympathetic blocker atropine, we evaluated the involvement of the parasympathetic nervous system in heart rate reduction of loggerhead sea turtles (Caretta caretta) during voluntary diving in tanks. The heart rate of the control group dropped by 40-60 % from the pre-dive value at the onset of diving; however, administration of atropine significantly inhibited heart rate reduction (P<0.001). Our results indicate that, similar to mammals and birds, the heart rate reduction in sea turtles while diving is primarily mediated by the parasympathetic nervous system. In conclusion, we suggest that diving bradycardia exists not only in aquatic mammals and birds but also in aquatic reptiles.
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Affiliation(s)
- Ayaka Saito
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Chihiro Kinoshita
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Megumi Kawai
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Takuya Fukuoka
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Katsufumi Sato
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Kentaro Q Sakamoto
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
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15
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Kinoshita C, Saito A, Sakamoto KQ, Yasuaki N, Sato K. Heart rate as a proxy for estimating oxygen consumption rates in loggerhead turtles (Caretta caretta). Biol Open 2022; 11:274558. [PMID: 35225332 PMCID: PMC8988048 DOI: 10.1242/bio.058952] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 02/21/2022] [Indexed: 11/20/2022] Open
Abstract
Heart rates of air-breathing diving animals can change on a short time scale due to the diving response during submergence. Heart rate is used frequently as a proxy for indirectly estimating metabolic rates on a fine time scale. However, most studies to date have been conducted on endothermic diving animals, and the relationships between metabolic rates and heart rates in ectothermic diving animals have not been well studied. Sea turtles are unique model organisms of diving ectotherms because they spend most of their life in the ocean and perform deep and/or long dives. In this study, we examined the relationship between heart rates and metabolic rates in captive loggerhead turtles, Caretta caretta, to estimate oxygen consumption rates during each dive based on heart rates. The oxygen consumption rates (V̇O2: mlO2 min−1 kg−1) and average heart rates (fH: beats min−1) were measured simultaneously in indoor tanks at water temperatures of 15–25°C. Our results showed that oxygen consumption rate was affected by heart rate and water temperature in loggerhead turtles. Based on the collected data, we formulated the model equation as V̇O2=0.0124fH+0.0047Tw - 0.0791. The equation can be used for estimating fine-scaled field metabolic rates in free-ranging loggerhead turtles. The results of this study will contribute to future comparative studies of the physiological states of ectothermic diving animals. Summary: The relationship between oxygen consumption rate and heart rate in the loggerhead turtle.
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Affiliation(s)
- Chihiro Kinoshita
- International Coastal Research Center, The Atmosphere and Ocean Research Institute, The University of Tokyo, 1-19-8 Akahama, Otsuch, Iwate 028-1102, Japan
| | - Ayaka Saito
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Kentaro Q Sakamoto
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
| | - Niizuma Yasuaki
- Faculty of Agriculture, Meijo University, 1-501 Shiogamaguchi, Tenpaku-ku, Nagoya, Aichi 468-8502, Japan
| | - Katsufumi Sato
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
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16
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Kinoshita C, Saito A, Kawai M, Sato K, Sakamoto KQ. A Non-Invasive Heart Rate Measurement Method Is Improved by Placing the Electrodes on the Ventral Side Rather Than the Dorsal in Loggerhead Turtles. Front Physiol 2022; 13:811947. [PMID: 35250617 PMCID: PMC8889138 DOI: 10.3389/fphys.2022.811947] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/12/2022] [Indexed: 11/29/2022] Open
Abstract
Heart rate measurement is an essential method for evaluating the physiological status of air-breathing diving animals. However, owing to technical difficulties, many marine animals require an invasive approach to record an electrocardiogram (ECG) in water, limiting the application of this approach in a wide range of marine animals. Recently, a non-invasive system was reported to measure the ECG of hard-shelled sea turtles by pasting the electrodes on the dorsal side of the shell, although the ECG obtained from the moving turtle contains noise produced by muscle contraction. Here, we report that clear ECGs can be obtained by placing the electrodes on the ventral side rather than the dorsal side in loggerhead sea turtles. Using our method, clearer ECG signals were obtained with less electrical noise, even when turtles are swimming. According to the anatomical features, the electrode position on the ventral side is closer to the heart than the dorsal side, minimizing the effects of noise generated by the skeletal muscle. This new biologging technique will elucidate the functioning of the circulatory system of sea turtles during swimming and their adaptabilities to marine environments. This article is part of the theme issue “Methods and Applications in Physio-logging.”
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Affiliation(s)
- Chihiro Kinoshita
- International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, Otsuchi, Japan
- *Correspondence: Chihiro Kinoshita,
| | - Ayaka Saito
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
| | - Megumi Kawai
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
| | - Katsufumi Sato
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
| | - Kentaro Q. Sakamoto
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
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17
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Imano N, Kimura T, Kawahara D, Kubo K, Takeuchi Y, Saito A, Nishibuchi I, Murakami Y, Nagata Y. Potential Benefits of Volumetric Modulated Arc Therapy to Reduce the Incidence of Grade 2 Radiation Pneumonitis in Radiotherapy for Locally Advanced Non-Small Cell Lung Cancer Patients. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Nakagawara K, Chubachi S, Azekawa S, Otake S, Saito A, Okada M, Lee K, Masaki K, Koike N, Kamata H, Kawada I, Suzuki S, Ishii M, Fukunaga K. Thymoma-associated T-cell immunodeficiency after radiotherapy: A case report. Respir Med Case Rep 2021; 33:101408. [PMID: 34401256 PMCID: PMC8348523 DOI: 10.1016/j.rmcr.2021.101408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/14/2021] [Accepted: 03/24/2021] [Indexed: 11/19/2022] Open
Abstract
Acquired immunodeficiency in thymoma (Good's syndrome) without hypogammaglobulinemia is a rare condition. Here we describe the case of a 29-year-old Japanese woman with thymoma-associated T cell immunodeficiency after radiation therapy. She was admitted to the hospital with refractory pneumonia, which resulted from as T cell immunodeficiency, as revealed through low peripheral lymphocytes and oral candidiasis triggered through radiotherapy and required long-term antimicrobial therapy. Although radiotherapy is commonly administered for thymoma, our findings suggest that physicians should consider carrying out lymphocyte counts during thymoma treatment.
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Affiliation(s)
- Kensuke Nakagawara
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shotaro Chubachi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
- Corresponding author. Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan.
| | - Shuhei Azekawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shiro Otake
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ayaka Saito
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Masahiko Okada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ko Lee
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Katsunori Masaki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naoyoshi Koike
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ichiro Kawada
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shigeaki Suzuki
- Division of Neurology Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Makoto Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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Kishikawa R, Hatano M, Ishii S, Shimbo M, Saito A, Minatsuki S, Iwasaki Y, Fujio K, Komuro I. AB0285 EFFECTIVENESS OF IMMUNOSUPPRESSIVE THERAPY FOR CONNECTIVE TISSUE DISEASE–ASSOCIATED PULMONARY ARTERIAL HYPERTENSION. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Connective tissue disease (CTD) associated pulmonary arterial hypertension (PAH) is considered to be an indication for immunosuppressive therapy (IT) except scleroderma associated PAH. However, the response rate defined by improvement of WHO functional class and hemodynamic parameters is reported to be around 50% [1]. Since CTDs are systemic diseases, it may be difficult to evaluate the efficacy of IT by subjective symptoms. Although there are previous studies reporting that the combined use of IT and pulmonary vasodilators significantly improved hemodynamics [2], response to IT without titration of pulmonary vasodilators remains to be elucidated.Objectives:To examine whether IT is effective for CTD-PAH.Methods:We retrospectively examined the medical records of consecutive 13 patients with CTD-PAH (female 13, mean age 47 ± 15 years) treated with methylprednisolone (1 mg/kg/day, oral) and intravenous bolus cyclophosphamide (IVCY) (500 mg/m2) every four weeks for six times. Patient characteristics are described in Table 1. Right heart catheterization (RHC) was done at prior to IT, before adding PAH specific agents, and at the fifth or sixth course of IVCY. In treated cases, the previous vasodilators remained unchanged during the first term of IT.Results:At the first follow up RHC, decrease of mean pulmonary arterial pressure over 5 mmHg was observed in all patients, and decrease of pulmonary vascular resistance (PVR) was observed in twelve out of 13 patients (Figure 1). Over 20% of PVR reduction was observed more in the patients of pulmonary vasodilator naïve and started IT within one year from symptoms than others (6/7 vs 1/6, p=0.03). Although six-minutes walk distance (6MWD) tended to be prolonged between first and second RHC (298 ± 70 m vs 382 ± 81 m; p=0.054; n = 9), 6MWD was shortened in some cases with good hemodynamic improvement (2/5). All patients were prescribed oral PAH specific agents finally, but no one needed parenteral prostanoids. Two patients (15%) died during maintenance therapy for causes other than PAH. Three-year and five-year survival rates were 91.7% and 81.5%, respectively.Conclusion:IT without titration of pulmonary vasodilators significantly improved hemodynamic parameters despite of less improvement in 6MWD in CTD-PAH patients. Considering that CTDs itself might affect the exercise tolerance regardless of PAH, these hemodynamic changes may contribute to better prognosis and IT might be considered especially for patients early in clinical courses and treatment naïve.References:[1]Jais X, Launay D, Yaici A, et al. Immunosupressive therapy in lupus-and mixed connective tissue disease-associated pulmonary arterial hypertension. ARTHRITIS RHEUM. 2008; 58(2): 521-531.[2]Yamamoto M S, Fukumoto Y, Sugimura K, et al. Intensive immunosuppressive therapy improves pulmonary hemodynamics and long-term prognosis in patients with pulmonary arterial hypertension associated with connective tissue diseasae. Circ J. 2011; 75: 2668-2674.Table 1.Characteristics of patientsPatientAge,yrConnective Tissue DiseaseYears from symptom to immunosuppressive therapyPrevious vasodilatorsvasodilators at final visit147SS1.5PGI2ERA262SS, RA2nonePDE5332SS1noneERA457SS, SSc0.5nonePDE5526SS,MCTD, SLE,SSc0.5nonePDE5670SSc, SS s/o13sGC, ERAsGC, ERA732SS s/o, SLE0.1nonePDE5831MCTD3ERA,PDE5, PGI2ERA,PDE5, PGI2943SSc, SLE0.6ERA, PDE5ERA,PDE5, PGI21067MCTD,PM0nonesGC1141SS0.1noneERA, PDE51269SS0.3nonePDE51344SS, MCTD s/o, SLE s/o0.1noneERA, sGCN.A, not acquired; s/o, suspect of; SS, Sjögren’s syndrome; RA, rheumatoid arthritis; SSc systemic sclerosis; SLE, systemic lupus erythematosus; MCTD, mixed connective tissue disease; PM, Polymyositis; PGI2, prostacyclin derivative; sGC, soluble guanylate cyclase stimulator; ERA, endothelin receptor antagonist; PDE5, phosphodiesterase type 5 inhibitor.Figure 1.Hemodynamic changes during immunosuppressive therapyDisclosure of Interests:Risa Kishikawa: None declared, Masaru Hatano Speakers bureau: Janssen Pharmaceutical K.K, Bayer Yakuhin, Ltd., Grant/research support from: Janssen Pharmaceutical K.K, Nippon Shinyaku Co., Ltd., MOCHIDA PHARMACEUTICAL CO., LTD., Satoshi Ishii: None declared, Mai Shimbo: None declared, Akihito Saito: None declared, Shun Minatsuki: None declared, Yukiko Iwasaki: None declared, Keishi Fujio Speakers bureau: Tanabe Mitsubishi, Bristol Myers, Eli Lilly, Chugai, Jansen, Pfizer, Ono, AbbVie, Ayumi, Astellas, Sanofi, Novartis, Daiichi Sankyo, Eisai, Asahi Kasei, Japan Blood Products Organization, and Kowa, Grant/research support from: Tanabe Mitsubishi, Bristol Myers, Eli Lilly, Chugai, AbbVie, Ayumi, Astellas, Sanofi, Eisai, Tsumura & Co., and Asahi Kasei., Issei Komuro Speakers bureau: AstraZeneka, Daiichi Sankyo Company, Limited, Takeda Pharmaceutical Company Limited, Bayer Yakuhin, Ltd, Pfizer Japan Inc., and Ono Pharmaceutical Co., Ltd., Grant/research support from: Daiichi Sankyo Company, Ltd, Sumitomo Dainippon Pharma Co., Ltd., Takeda Pharmaceutical Company Ltd, Mitsubishi Tanabe Pharma Corporation, Teijin Pharma Limited, Idorsia Pharmaceuticals Ltd, Otsuka Pharmaceutical Co., Ltd., Bayer Yakuhin, Ltd. Ono Pharmaceutical Co., Ltd. Toa Eiyo Ltd
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Affiliation(s)
- Yu Cao
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
| | - Ayaka Saito
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
| | - Yoji Kobayashi
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
| | - Hiroki Ubukata
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
| | - Ya Tang
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
| | - Hiroshi Kageyama
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
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Ote K, Hashimoto F, Kakimoto A, Isobe T, Inubushi T, Ota R, Tokui A, Saito A, Moriya T, Omura T, Yoshikawa E, Teramoto A, Ouchi Y. Kinetics-Induced Block Matching and 5-D Transform Domain Filtering for Dynamic PET Image Denoising. IEEE Trans Radiat Plasma Med Sci 2020. [DOI: 10.1109/trpms.2020.3000221] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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22
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Takeuchi Y, Kameoka T, Ochi M, Imano N, Takahashi I, Nishibuchi I, Kimura T, Murakami Y, Kawahara D, Miki K, Saito A, Nagata Y. Interstitial Brachytherapy For Locally Advanced Tongue Cancer: Analysis Of The Long-Term Treatment Results For Survival And Complications. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.297] [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: 11/27/2022]
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23
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Obata Y, Ishimori N, Saito A, Kinugawa S, Nakano I, Kakutani N, Yamanashi K, Yokota T, Anzai T. Activation of invariant natural killer T cells ameliorates doxorubicin-induced cardiotoxicity in mice. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Objective
Doxorubicin (DOX) is one of the most important anticancer agents and widely used to treat cancers but clinical utility of DOX is limited for its dose-dependent cardiotoxicity. The precise mechanism of DOX-induced cardiotoxicity is still not fully understood but it has been reported that cardiac inflammation is involved in the cardiotoxicity. Invariant natural killer T (iNKT) cells, a unique subset of T lymphocytes that recognize glycolipid antigens and secrete a large amount of both Th1 and Th2 cytokines on activation, have been shown to play crucial roles in the regulation of immune responses. However, it remains unclear whether iNKT cells are involved in DOX-induced cardiotoxicity.
Methods and results
Male C57BL/6J mice were administered DOX (20mg/kg body weight; n=28) or vehicle (Vehicle; n=6). DOX-administered mice were further divided into 2 groups; those treated with α-galactosylceramide (αGC, 0.1μg/g body weight; DOX-αGC; n=14), which specifically activates iNKT cells, or those treated with PBS (DOX-PBS; n=14) by intraperitoneal injections (twice; 4 days before and 3 days after DOX administration).An echocardiography conducted at 14 days after DOX/Vehicle administration revealed that LV fractional shortening was significantly reduced in the DOX-PBS compared to the Vehicle (49.3±0.8% vs. 59.2±1.7%, P<0.05), and this decrease was completely attenuated in the DOX-αGC (57.7±1.3%, P<0.05 vs. DOX-PBS)without affecting LV end-diastolic diameter. Flow cytometric analysis revealed that the ratio of iNKT cells to mononuclear cells infiltrated into the heart tissue was significantly increased in the DOX+αGC compared to the Vehicle and the DOX+PBS (1.00±0.09% vs. 0.54±0.09% and 0.71±0.07%, P<0.05). Immuno-histochemistry revealed that the infiltration number of Iba1+macrophages in the heart tissue was significantly elevated in the DOX+αGC compared to the Vehicle and the DOX+PBS (55.4±3.2 cells/mm2 vs. 21.7±2.0 cells/mm2 and 37.5±5.9 cells/mm2, P<0.05) The ratio of fibrosis area to the heart tissue was markedly higher in the DOX-PBS than in Vehicle (4.3±0.5% vs. 2.2±0.1%, P<0.05), and this increase was completely attenuated in the DOX-αGC (2.8±0.1%, P<0.05 vs.DOX-PBS).Real-time PCR analysis revealed that mRNA expressions of M2 macrophage markers (Arginase 1 and Retnla) and IL-4 were significantly enhanced in the DOX+αGC compared to the DOX+PBS (Arginase 1: 2.5±0.4 vs. 1.6±0.3 [relative ratio to the Vehicle], P=0.08; Retnla: 2.4±0.5 vs. 1.1±0.2 [relative ratio to the Vehicle], P<0.05; IL-4: 1.0±0.3 vs. 8.94±2.8 [relative ratio to the DOX+PBS], P<0.05), while those of M1 macrophage markers (iNOS and MCP-1) did not change among all groups.
Conclusions
Activation of iNKT cells ameliorates DOX-induced cardiotoxicity in mice via enhanced M2 macrophage polarization with the upregulation of IL-4 and reducing cardiac fibrosis. iNKT cell activation can be a novel preventive strategy against DOX-induced cardiotoxicity.
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): Japan Agency for Medical Research and Development (18lm0203001j0002) and JSPS KAKENHI (18K15834).
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Affiliation(s)
- Y Obata
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - N Ishimori
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - A Saito
- Health Sciences University of Hokkaido, Cardiovascular Medicine, Sapporo, Japan
| | - S Kinugawa
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - I Nakano
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - N Kakutani
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - K Yamanashi
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - T Yokota
- Hokkaido University, Sapporo, Japan
| | - T Anzai
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
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24
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Minatsuki S, Kiyosue A, Kodera S, Saito A, Maki H, Hatano M, Takimoto E, Ando J, Komuro I. Novel procedural method for balloon pulmonary angioplasty to treat chronic thromboembolic pulmonary hypertension. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The current strategy of balloon pulmonary angioplasty (BPA) for chronic thromboembolic pulmonary hypertension (CTEPH) is to dilate branches as many as possible without lung injury to normalize mean pulmonary artery pressure and oxygenation. The shape of guiding catheter is one of the important factors to achieve this strategy. However, conventional guiding catheters which are typically used for BPA are difficult to introduce into particular branches. The Ikari-curve left (IL) guiding catheter may be suitable for this purpose by adjusting its curves (Figure 1); however, its utility and effectiveness for lung injury are unclear.
Purpose
The aim of this study is to clarify utility and safety of IL guiding catheter for BPA.
Methods
We retrospectively analyzed 202 consecutive BPA sessions of 40 patients with CTEPH from November 2016 to October 2019 and divided them into two groups; IL group, in which we used IL guiding catheter; and non-IL group in which we used others. IL guiding catheter was used for branches of left lung which are difficult to introduce by conventional catheter prior Nov. 2018. After Nov.2018, we also used it for the same type branches of right lung. The occurrence of lung injury was determined by the presence of bloody sputum during the perioperative period. We compared success rate of introduction into target vessels and of occurrence of lung injury.
Results
The average age of enrolled patients was 60.3±14.4 year-old and female was 65%. There were 99 sessions in IL group. The median treated branches significantly differed between groups (IL group: 15 vs. non-IL group: 10, p<0.05). The lung injury rate tended to low in the IL group (4.0% vs. 11.7%, p=0.07). The IL group had more successful insertions into branches than did the non-IL group (right lung: middle lobe*, 84.4% vs. 57.5%; medial basal branch*, 46.9% vs. 7.5%; left lung: anterior ascending and descending branches, 82.9% vs. 70.8%; lingular branches*, 90.0% vs. 62.5%; anterior basal branch, 75.7% vs. 62.5%, * p<0.05).
Conclusion
IL guiding catheter can be introduced into branches that cannot be accessed via conventional guiding catheters and has potential to reduce the occurrence of lung injury. 2228 characters including space
Figure1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - A Kiyosue
- The University of Tokyo, Tokyo, Japan
| | - S Kodera
- The University of Tokyo, Tokyo, Japan
| | - A Saito
- The University of Tokyo, Tokyo, Japan
| | - H Maki
- The University of Tokyo, Tokyo, Japan
| | - M Hatano
- The University of Tokyo, Tokyo, Japan
| | | | - J Ando
- The University of Tokyo, Tokyo, Japan
| | - I Komuro
- The University of Tokyo, Tokyo, Japan
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25
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Asano T, Ono M, Saito A, Kanie T, Takaoka T, Komiyama N. Twenty-year trends in clinical outcome of randomized controlled trial for coronary intervention: systematic review and meta-regression analysis of 46 randomized controlled trials. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Aim
The technology of percutaneous coronary intervention (PCI) has been developed after the advent of coronary stent. However, the impact of the technological development on clinical outcomes is still unclear, whereas a remarkable improvement of clinical outcomes after PCI has not been observed in the trials comparing to medical therapy or coronary bypass graft. The current analysis aims to investigate trends in clinical outcomes after PCI after the emargence of coronary stent, using the randomized controlled trials (RCTs) comparing coronary stents.
Methods and results
We performed a systematic review of RCTs investigating coronary stents in non-specific population (excluding the trials particularly enrolling diabetic or myocardial infarction etc.) conducted between 1996 and 2015 (publication between 1997 and 2019) with independent clinical event adjudication. The random-effect meta-regression analysis including 90 arms with 94,831 patients in 46 RCTs was performed investigating the 20-year trends in clinical outcomes such as death, cardiac death, myocardial infarction, target lesion revascularization (TLR) and stent thrombosis at one and five years after the index procedure. The sensitivity analysis was performed by limiting to 20 all comer trials. In the meta-regression analysis, we did not observe significant change in the incidences of cardiac death and myocardial infarction after PCI over 20 years (P values for cardiac death: 0.666 at one year, 0.256 at five years and P values for myocardial infarction: 0.121 at one year, 0.376 at five years; R2 for cardiac death: <0.01 at one year and five years and R2 for myocardial infarction: <0.01 at one year and five years), whereas the incidences of clinically indicated TLR (P value <0.001, R2 = 0.40 at one year, P value = 0.002, R2 = 0.22 at five years) and stent thrombosis were decreased steeply in the first decade and slightly in the second decade (P value = 0.040, R2 = 0.09 at one year; P value = 0.017, R2 = 0.17 at five year). The sencitivity analysis limiting all-comer population revealed the consistent results.
Conclusion
The development of PCI had an impact on the 20-year trends in TLR and ST, despite there were no trends in the cardiac death and myocardial infarction.
Trends in the incidence of the outcomes
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Asano
- St. Luke's International Hospital, Cardiology, Tokyo, Japan
| | - M Ono
- St. Luke's International Hospital, Cardiology, Tokyo, Japan
| | - A Saito
- St. Luke's International Hospital, Cardiology, Tokyo, Japan
| | - T Kanie
- St. Luke's International Hospital, Cardiology, Tokyo, Japan
| | - T Takaoka
- St. Luke's International Hospital, Cardiology, Tokyo, Japan
| | - N Komiyama
- St. Luke's International Hospital, Cardiology, Tokyo, Japan
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26
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Okiyama N, Nakamura Y, Ishitsuka Y, Inoue S, Kubota N, Saito A, Watanabe R, Fujisawa Y, Igawa K. Successful topical treatment with ketoconazole for facial rashes refractory to dupilumab in patients with atopic dermatitis: case reports. J Eur Acad Dermatol Venereol 2020; 34:e474-e476. [DOI: 10.1111/jdv.16383] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/29/2020] [Accepted: 03/16/2020] [Indexed: 12/20/2022]
Affiliation(s)
- N. Okiyama
- Department of Dermatology Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - Y. Nakamura
- Department of Dermatology Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - Y. Ishitsuka
- Department of Dermatology Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - S. Inoue
- Department of Dermatology Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - N. Kubota
- Department of Dermatology Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - A. Saito
- Department of Dermatology Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - R. Watanabe
- Department of Dermatology Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - Y. Fujisawa
- Department of Dermatology Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - K. Igawa
- Department of Dermatology Dokkyo Medical University School of Medicine Tochigi Japan
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27
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Silbernagel KM, Lindberg KG, Ary M, Bannach B, Barbour M, Battista K, Bauten H, Beatty S, Bogar S, Buczek L, Bulthau M, Burnett T, Carver C, Cha K, Cooper L, D’Andrea L, Davis B, Fain A, Feiler B, Fender M, Hirt W, Iannucci M, Jackson JK, Jensen D, Johnson K, Julien-Davis G, Kempf A, Krone P, Kusch S, LaPointe A, Leiva BR, Lewandowski V, Lewis J, Maycock L, Mebs D, McCann T, Moulsoff M, Newcomer C, Ooya M, O’Shea P, Otten N, Reed J, Remes A, Resutek J, Rukamp B, Rukamp S, Saito A, Shafie A, Smith A, Tabatt J, Tanaka H, Torrance H, VandeVoort M, Wang D, Windsor S, Xiong Y, Zebchuck A. Petrifilm™ Rapid S. aureus Count Plate Method for Rapid Enumeration of Staphylococcus aureus in Selected Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/84.5.1431] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A rehydratable dry-film plating method for Staphylococcus aureusin foods, the 3M™ Petrifilm™ Rapid S. aureus Count Plate method, was compared with AOAC® Official MethodSM 975.55 (Staphylococcus aureus in Foods). Nine foods—instant nonfat dried milk, dry seasoned vegetable coating, frozen hash browns, frozen cooked chicken patty, frozen ground raw pork, shredded cheddar cheese, fresh green beans, pasta filled with beef and cheese, and egg custard—were analyzed for S. aureus by 13 collaborating laboratories. For each food tested, the collaborators received 8 blind test samples consisting of a control sample and 3 levels of inoculated test sample, each in duplicate. The mean log counts for the methods were comparable for pasta filled with beef and cheese; frozen hash browns; cooked chicken patty; egg custard; frozen ground raw pork; and instant nonfat dried milk. The repeatability and reproducibility variances of the Petrifilm Rapid S. aureus Count Plate method were similar to those of the standard method.
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28
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Nakamura Y, Ishitsuka Y, Tanaka R, Okiyama N, Saito A, Watanabe R, Fujisawa Y. Acral lentiginous melanoma and mucosal melanoma expressed less programmed-death 1 ligand than cutaneous melanoma: a retrospective study of 73 Japanese melanoma patients. J Eur Acad Dermatol Venereol 2019; 33:e424-e426. [PMID: 31187906 DOI: 10.1111/jdv.15742] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/10/2019] [Accepted: 05/29/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Y Nakamura
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Y Ishitsuka
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - R Tanaka
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - N Okiyama
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - A Saito
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - R Watanabe
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Y Fujisawa
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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29
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Obata Y, Ishimori N, Saito A, Kinugawa S, Nakano I, Kakutani N, Yamanashi K, Anzai T. P1623Activation of invariant natural killer T cells by alpha-galactosylceramide ameliorates doxorubicin-induced cardiotoxicity in mice. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Objective
Doxorubicin (DOX) is an effective antineoplastic agent commonly used to treat many types of cancer but its clinical use is limited because of cardiotoxicity, which might proceed to irreversible cardiac dysfunction in a dose-dependent manner. The precise mechanism of DOX-induced cardiotoxicity is still not fully elucidated but it has been reported that cardiac inflammation is involved in the cardiotoxicity. Invariant natural killer T (iNKT) cells, a unique subset of T lymphocytes that recognize glycolipid antigens and secrete a large amount of Th1 and Th2 cytokines on activation, have been shown to play crucial roles in the regulation of immune responses. However, it remains unclear whether iNKT cells are involved in DOX-induced cardiotoxicity.
Methods and results
Male C57BL/6J mice were administered DOX (20mg/kg body weight single intraperitoneal injection; n=28) or vehicle (Vehicle; n=6). DOX-administered mice were further divided into 2 groups; α-galactosylceramide (αGC, 0.1μg/g body weight twice intraperitoneal injection; DOX-αGC; n=14), which specifically activates iNKT cells, or phosphate-buffered saline alone (PBS; DOX-PBS; n=14) 4 days before and 3 days after DOX administration. Survival rate at 14 days after DOX/Vehicle administration was significantly lower in DOX-PBS than in Vehicle (71% vs. 100%, P<0.05), and this decrease was completely attenuated in DOX-αGC (100%, P<0.05 vs. DOX-PBS). Echocardiography at 14 days after DOX/Vehicle administration revealed that left ventricular (LV) fractional shortening was significantly reduced in DOX-PBS compared to Vehicle (49.3±0.8% vs. 59.2±1.7%, P<0.05), and this decrease was completely attenuated in DOX-αGC (57.7±1.3%, P<0.05 vs. DOX-PBS) without affecting LV end-diastolic diameter. Picro-sirius red staining revealed that the ratio of fibrosis area to the cardiac tissue was markedly higher in DOX-PBS than in Vehicle (4.3±0.5% vs. 2.2±0.1%, P<0.05), and this increase was completely attenuated in DOX-αGC (2.8±0.1%, P<0.05 vs. DOX-PBS). Real-time PCR analysis revealed that mRNA expression of anti-inflammatory Th2 cytokine IL-4 was enhanced by 7.9-folds in DOX-αGC compared to DOX-PBS, though the difference did not reach statistically significance (P=0.09).
Conclusions
Activation of iNKT cells by αGC ameliorates DOX-induced cardiotoxicity in mice via up-regulation of anti-inflammatory IL-4 and reducing cardiac fibrosis. iNKT cell activation may be a novel therapeutic strategy against DOX-induced cardiotoxicity.
Acknowledgement/Funding
Japan Agency for Medical Research and Development (18lm0203001j0002) and JSPS KAKENHI (18K15834)
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Affiliation(s)
- Y Obata
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - N Ishimori
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - A Saito
- Health Sciences University of Hokkaido, Cardiovascular Medicine, Sapporo, Japan
| | - S Kinugawa
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - I Nakano
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - N Kakutani
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - K Yamanashi
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - T Anzai
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
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30
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Imano N, Kimura T, Kameoka T, Ochi M, Takeuchi Y, Takahashi I, Nishibuchi I, Murakami Y, Kawahara D, Miki K, Saito A, Yasushi N. P1.18-22 Impact of Using Volumetric Modulated Arc Therapy on Radiation Pneumonitis in Locally Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Katz DL, Karlsen MC, Chung M, Shams-White MM, Green LW, Fielding J, Saito A, Willett W. Hierarchies of evidence applied to lifestyle Medicine (HEALM): introduction of a strength-of-evidence approach based on a methodological systematic review. BMC Med Res Methodol 2019; 19:178. [PMID: 31429718 PMCID: PMC6701153 DOI: 10.1186/s12874-019-0811-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/25/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Current methods for assessing strength of evidence prioritize the contributions of randomized controlled trials (RCTs). The objective of this study was to characterize strength of evidence (SOE) tools in recent use, identify their application to lifestyle interventions for improved longevity, vitality, or successful aging, and to assess implications of the findings. METHODS The search strategy was created in PubMed and modified as needed for four additional databases: Embase, AnthropologyPlus, PsycINFO, and Ageline, supplemented by manual searching. Systematic reviews and meta-analyses of intervention trials or observational studies relevant to lifestyle intervention were included if they used a specified SOE tool. Data was collected for each SOE tool. Conditions necessary for assigning the highest SOE grading and treatment of prospective cohort studies within each SOE rating framework were summarized. The expert panel convened to discuss the implications of findings for assessing evidence in the domain of lifestyle medicine. RESULTS AND CONCLUSIONS A total of 15 unique tools were identified. Ten were tools developed and used by governmental agencies or other equivalent professional bodies and were applicable in a variety of settings. Of these 10, four require consistent results from RCTs of high quality to award the highest rating of evidence. Most SOE tools include prospective cohort studies only to note their secondary contribution to overall SOE as compared to RCTs. We developed a new construct, Hierarchies of Evidence Applied to Lifestyle Medicine (HEALM), to illustrate the feasibility of a tool based on the specific contributions of diverse research methods to understanding lifetime effects of health behaviors. Assessment of evidence relevant to lifestyle medicine requires a potential adaptation of SOE approaches when outcomes and/or exposures obviate exclusive or preferential reliance on RCTs. This systematic review was registered with the International Prospective Register of Systematic Reviews, PROSPERO [CRD42018082148].
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Affiliation(s)
- D. L. Katz
- American College of Lifestyle Medicine, PO Box 6432, Chesterfield, MO 63006 USA
- The True Health Initiative, Derby, CT USA
- Yale Griffith Prevention Research Center, 130 Division St, Derby, CT 06418 USA
| | - M. C. Karlsen
- American College of Lifestyle Medicine, PO Box 6432, Chesterfield, MO 63006 USA
- Applied Clinical Nutrition and Global Public Health Programs, University of New England, 11 Hills Beach Rd, Biddeford, ME 04005 USA
| | - M. Chung
- Department of Public Health and Community Medicine, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA 02111 USA
| | - M. M. Shams-White
- Risk Factor Assessment Branch, Division of Cancer Control and Population Sciences, National Cancer Institute, 9609 Medical Center Drive, 4E204, Bethesda, MD 20850 USA
| | - L. W. Green
- Department of Epidemiology and Biostatistics, University of California at San Francisco School of Medicine, 550 16th Street, Second Floor, San Francisco, CA 94158 USA
| | - J. Fielding
- University of California Fielding School of Public Health, 650 Charles E Young Dr S, Los Angeles, CA 90095 USA
| | - A. Saito
- Brown University School of Public Health, 121 S Main St, Providence, RI 02903 USA
| | - W. Willett
- Harvard University T.H. Chan School of Public Health, 655 Huntington Avenue, Boston, MA 02115 USA
- Harvard Medical School, 25 Shattuck St, Boston, MA 02115 USA
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32
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Asano K, Suzuki T, Saito A, Wei FY, Ikeuchi Y, Numata T, Tanaka R, Yamane Y, Yamamoto T, Goto T, Kishita Y, Murayama K, Ohtake A, Okazaki Y, Tomizawa K, Sakaguchi Y, Suzuki T. Metabolic and chemical regulation of tRNA modification associated with taurine deficiency and human disease. Nucleic Acids Res 2019; 46:1565-1583. [PMID: 29390138 PMCID: PMC5829720 DOI: 10.1093/nar/gky068] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 01/23/2018] [Indexed: 12/21/2022] Open
Abstract
Modified uridine containing taurine, 5-taurinomethyluridine (τm5U), is found at the anticodon first position of mitochondrial (mt-)transfer RNAs (tRNAs). Previously, we reported that τm5U is absent in mt-tRNAs with pathogenic mutations associated with mitochondrial diseases. However, biogenesis and physiological role of τm5U remained elusive. Here, we elucidated τm5U biogenesis by confirming that 5,10-methylene-tetrahydrofolate and taurine are metabolic substrates for τm5U formation catalyzed by MTO1 and GTPBP3. GTPBP3-knockout cells exhibited respiratory defects and reduced mitochondrial translation. Very little τm5U34 was detected in patient's cells with the GTPBP3 mutation, demonstrating that lack of τm5U results in pathological consequences. Taurine starvation resulted in downregulation of τm5U frequency in cultured cells and animal tissues (cat liver and flatfish). Strikingly, 5-carboxymethylaminomethyluridine (cmnm5U), in which the taurine moiety of τm5U is replaced with glycine, was detected in mt-tRNAs from taurine-depleted cells. These results indicate that tRNA modifications are dynamically regulated via sensing of intracellular metabolites under physiological condition.
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Affiliation(s)
- Kana Asano
- Department of Chemistry and Biotechnology, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takeo Suzuki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ayaka Saito
- Department of Chemistry and Biotechnology, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Fan-Yan Wei
- Department of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Yoshiho Ikeuchi
- Institute of Industrial Science, University of Tokyo, Meguro-ku, Tokyo 153-8505, Japan
| | - Tomoyuki Numata
- Biological Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8566, Japan
| | - Ryou Tanaka
- Department of Veterinary Surgery, Tokyo University of Agriculture and Technology, Animal Medical Center, Fuchu, Tokyo 183-8509, Japan
| | - Yoshihisa Yamane
- Department of Veterinary Surgery, Tokyo University of Agriculture and Technology, Animal Medical Center, Fuchu, Tokyo 183-8509, Japan
| | - Takeshi Yamamoto
- Tamaki Laboratory, National Research Institute of Aquaculture, Japan Fisheries Research and Education Agency, Tamaki, Mie 519-0423, Japan
| | - Takanobu Goto
- Department of Chemistry & Biochemistry, National Institute of Technology, Numazu College, Numazu, Shizuoka 410-8501, Japan
| | - Yoshihito Kishita
- Division of Functional Genomics & Systems Medicine, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1240, Japan
| | - Kei Murayama
- Department of Metabolism, Chiba Children's Hospital, Midori-ku, Chiba 266-0007, Japan
| | - Akira Ohtake
- Department of Pediatrics, Saitama Medical University, Moroyama-machi, Iruma-gun, Saitama 350-0495, Japan
| | - Yasushi Okazaki
- Division of Functional Genomics & Systems Medicine, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1240, Japan.,Division of Translational Research, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1240, Japan
| | - Kazuhito Tomizawa
- Department of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Yuriko Sakaguchi
- Department of Chemistry and Biotechnology, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tsutomu Suzuki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Saito A, Fujimoto M, Okiyama N. 037 Transforming growth factor-β produced by keratinocytes undergoing apoptosis promotes skin fibrosis in chronic graft-versus-host disease-like reaction. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.113] [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: 10/27/2022]
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Kubota N, Saito A, Tanaka R, Clausen B, Fujimoto M, Okiyama N. 018 Langerhans cells suppress CD8 T cells in situ during acute graft-versus-host disease-like autoimmune mucocutaneous disease. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hara T, Hatano M, Saito A, Minatsuki S, Maki H, Amiya E, Hosoya Y, Nagayama K, Sato M, Anraku M, Nakajima J, Komuro I. High Heart Rate and Pulmonary Vascular Resistance Predict Poor Prognosis after Referral for Lung Transplantation in Patients with Pulmonary Arterial Hypertension. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1243] [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: 10/27/2022] Open
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Hara T, Hatano M, Saito A, Minatsuki S, Maki H, Amiya E, Hosoya Y, Nagayama K, Sato M, Anraku M, Nakajima J, Komuro I. PROGNOSTIC FACTORS FOR PATIENTS WITH SEVERE PULMONARY ARTERIAL PULMONARY HYPERTENSION DIAGNOSED AS REQUIRING LUNG TRANSPLANTATION. Chest 2019. [DOI: 10.1016/j.chest.2019.02.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Azakami D, Saito A, Ochiai K, Ishiwata T, Takahashi K, Kaji N, Kaji D, Kaji N, Michishita M. Chronic Basophilic Leukaemia in a Dog. J Comp Pathol 2018; 166:5-8. [PMID: 30691606 DOI: 10.1016/j.jcpa.2018.10.170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 09/20/2018] [Accepted: 10/22/2018] [Indexed: 10/27/2022]
Abstract
A 13-year-old neutered female mixed-breed dog with a clinical history of emaciation, inappetence and vomiting for 2 months was presented. Blood tests showed marked leucocytosis with increased neutrophil and basophil count, mild thrombocytosis and anaemia. Seven days after the initial visit, the dog died and was submitted for necropsy examination. Grossly, the bone marrow was red in colour and hepatomegaly and splenomegaly with discolouration were observed. A bone marrow smear showed an increased proportion of basophilic lineage cells. Histologically, the bone marrow showed high cellular density and numerous basophilic lineage cells with a round or segmented nucleus. The cytoplasm contained basophilic granules exhibiting metachromasia on toluidine blue staining. Immunohistochemically, the neoplastic basophils were diffusely positive for vimentin and myeloperoxidase, but negative for CD3, BLA36, CD163, CD204 and c-kit. The immunohistochemical features of neoplastic basophils that had invaded the liver and spleen were similar to those of the basophils in the bone marrow. Based on the clinicopathological and histopathological findings, chronic basophilic leukaemia was diagnosed. The present case study provides insights into the pathological features of chronic basophilic leukaemia in dogs.
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Affiliation(s)
- D Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - A Saito
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - K Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - T Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - K Takahashi
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - N Kaji
- Kaji Animal Clinic, Fukuoka, Japan
| | - D Kaji
- Kaji Animal Clinic, Fukuoka, Japan
| | - N Kaji
- Kaji Animal Clinic, Fukuoka, Japan
| | - M Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.
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Okiyama N, Inoue S, Saito A, Nakamura Y, Ishitsuka Y, Fujisawa Y, Watanabe R, Fujimoto M. Antihelix/helix violaceous macules in Japanese patients with anti-melanoma differentiation-associated protein 5 (MDA5) antibody-associated dermatomyositis. Br J Dermatol 2018; 180:1226-1227. [PMID: 30431155 DOI: 10.1111/bjd.17431] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- N Okiyama
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575,, Japan
| | - S Inoue
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575,, Japan
| | - A Saito
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575,, Japan
| | - Y Nakamura
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575,, Japan
| | - Y Ishitsuka
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575,, Japan
| | - Y Fujisawa
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575,, Japan
| | - R Watanabe
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575,, Japan
| | - M Fujimoto
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575,, Japan
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Inoue S, Okiyama N, Shobo M, Motegi S, Hirano H, Nakagawa Y, Saito A, Nakamura Y, Ishitsuka Y, Fujisawa Y, Watanabe R, Fujimoto M. Diffuse erythema with ‘angel wings’ sign in Japanese patients with anti-small ubiquitin-like modifier activating enzyme antibody-associated dermatomyositis. Br J Dermatol 2018; 179:1414-1415. [DOI: 10.1111/bjd.17026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- S. Inoue
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
| | - N. Okiyama
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
| | - M. Shobo
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
| | - S. Motegi
- Department of Dermatology, Graduate School of Medicine; Gunma University; Gunma Japan
| | - H. Hirano
- Department of Neurology; Kansai Electric Power Hospital; Osaka Japan
| | - Y. Nakagawa
- Department of Neurology; Shizuoka General Hospital; Shizuoka Japan
| | - A. Saito
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
| | - Y. Nakamura
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
| | - Y. Ishitsuka
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
| | - Y. Fujisawa
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
| | - R. Watanabe
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
| | - M. Fujimoto
- Department of Dermatology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
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Nambu H, Takada S, Fukushima A, Matsumoto J, Kakutani N, Maekawa S, Shirakawa R, Furihata T, Nakajima T, Katayama T, Tsuda M, Saito A, Yokota T, Kinugawa S, Anzai T. P4774Empagliflozin improves exercise endurance via the activation of fatty acid oxidation in the skeletal muscle in murine model of post-infarct heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- H Nambu
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - S Takada
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - A Fukushima
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - J Matsumoto
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - N Kakutani
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - S Maekawa
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - R Shirakawa
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - T Furihata
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - T Nakajima
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - T Katayama
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - M Tsuda
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - A Saito
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - T Yokota
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - S Kinugawa
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
| | - T Anzai
- Hokkaido University, Cardiovascular medicine, Sapporo, Japan
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Shirakawa R, Yokota T, Nakajima T, Takada S, Yamane M, Furihata T, Matsumoto J, Tsuda M, Katayama T, Maekawa S, Nambu H, Fukushima A, Saito A, Kinugawa S, Anzai T. 3143Excessive mitochondrial reactive oxygen species emission from circulating blood cells is associated with severity of heart failure and exercise intolerance. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- R Shirakawa
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - T Yokota
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - T Nakajima
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - S Takada
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - M Yamane
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - T Furihata
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - J Matsumoto
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - M Tsuda
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - T Katayama
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - S Maekawa
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - H Nambu
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - A Fukushima
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - A Saito
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - S Kinugawa
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
| | - T Anzai
- Hokkaido University, Cardiovascular Medicine, Sapporo, Japan
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Nitta D, Kinugawa K, Yokota J, Endo M, Tsuji M, Saito A, Minatsuki S, Amiya E, Hatano M, Ono M, Komuro I. The Presence of Microchannel in Optical Coherence Tomography is Associated With the Plaque Volume of Cardiac Allograft Vasculopathy After Heart Transplantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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43
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Tabeta K, Hosojima M, Nakajima M, Miyauchi S, Miyazawa H, Takahashi N, Matsuda Y, Sugita N, Komatsu Y, Sato K, Ishikawa T, Akiishi K, Yamazaki K, Kato K, Saito A, Yoshie H. Increased serum PCSK9, a potential biomarker to screen for periodontitis, and decreased total bilirubin associated with probing depth in a Japanese community survey. J Periodontal Res 2018. [DOI: 10.1111/jre.12533] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- K. Tabeta
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - M. Hosojima
- Department of Clinical Nutrition Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - M. Nakajima
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - S. Miyauchi
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - H. Miyazawa
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - N. Takahashi
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - Y. Matsuda
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - N. Sugita
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - Y. Komatsu
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - K. Sato
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - T. Ishikawa
- Division of Clinical Nephrology and Rheumatology; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - K. Akiishi
- Reagent R&D Department; Denka Seiken Co., Ltd.; Niigata Japan
| | - K. Yamazaki
- Laboratory of Periodontology and Immunology; Department of Oral Health and Welfare; Faculty of Dentistry; Niigata University; Niigata Japan
| | - K. Kato
- Department of Laboratory Medicine and Clinical Epidemiology for Prevention of Noncommunicable Diseases; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - A. Saito
- Department of Applied Molecular Medicine; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - H. Yoshie
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
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Immel TJ, England SL, Mende SB, Heelis RA, Englert CR, Edelstein J, Frey HU, Korpela EJ, Taylor ER, Craig WW, Harris SE, Bester M, Bust GS, Crowley G, Forbes JM, Gérard JC, Harlander JM, Huba JD, Hubert B, Kamalabadi F, Makela JJ, Maute AI, Meier RR, Raftery C, Rochus P, Siegmund OHW, Stephan AW, Swenson GR, Frey S, Hysell DL, Saito A, Rider KA, Sirk MM. The Ionospheric Connection Explorer Mission: Mission Goals and Design. Space Sci Rev 2017; 214:13. [PMID: 33758433 PMCID: PMC7983873 DOI: 10.1007/s11214-017-0449-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/17/2017] [Indexed: 06/01/2023]
Abstract
The Ionospheric Connection Explorer, or ICON, is a new NASA Explorer mission that will explore the boundary between Earth and space to understand the physical connection between our world and our space environment. This connection is made in the ionosphere, which has long been known to exhibit variability associated with the sun and solar wind. However, it has been recognized in the 21st century that equally significant changes in ionospheric conditions are apparently associated with energy and momentum propagating upward from our own atmosphere. ICON's goal is to weigh the competing impacts of these two drivers as they influence our space environment. Here we describe the specific science objectives that address this goal, as well as the means by which they will be achieved. The instruments selected, the overall performance requirements of the science payload and the operational requirements are also described. ICON's development began in 2013 and the mission is on track for launch in 2017. ICON is developed and managed by the Space Sciences Laboratory at the University of California, Berkeley, with key contributions from several partner institutions.
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Affiliation(s)
- T J Immel
- University of California, Berkeley, USA
| | - S L England
- Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - S B Mende
- University of California, Berkeley, USA
| | - R A Heelis
- University of Texas at Dallas, Dallas, USA
| | - C R Englert
- Naval Research Laboratory, Washington, DC, USA
| | | | - H U Frey
- University of California, Berkeley, USA
| | | | | | - W W Craig
- University of California, Berkeley, USA
| | | | - M Bester
- University of California, Berkeley, USA
| | - G S Bust
- Applied Physics Laboratory, Laurel, MD, USA
| | | | - J M Forbes
- University of Colorado, Boulder, CO, USA
| | | | | | - J D Huba
- Naval Research Laboratory, Washington, DC, USA
| | - B Hubert
- University of Liège, Liège, Belgium
| | | | - J J Makela
- University of Illinois, Champaign-Urbana, USA
| | - A I Maute
- National Center for Atmospheric Research, Boulder, CO, USA
| | - R R Meier
- George Mason University, Fairfax, VA, USA
| | - C Raftery
- University of California, Berkeley, USA
- National Solar Observatory, Boulder, CO, USA
| | - P Rochus
- University of Liège, Liège, Belgium
| | | | - A W Stephan
- Naval Research Laboratory, Washington, DC, USA
| | - G R Swenson
- University of Illinois, Champaign-Urbana, USA
| | - S Frey
- University of California, Berkeley, USA
| | | | - A Saito
- Kyoto University, Kyoto, Japan
| | - K A Rider
- University of California, Berkeley, USA
| | - M M Sirk
- University of California, Berkeley, USA
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Corassa M, De Sa V, Werneck I, Lima V, Saito A, Molin GD, De Macedo M, Ferreira E, Carraro D, Freitas H. P3.02-060 EGFR Mutation Status by Three Sequencing Platforms in 704 Non-Small Cell Lung Cancer (NSCLC) Brazilian Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hisanaga Y, Suzuki E, Aoki H, Sato M, Saito A, Saito A, Azuma T. Effect of the combined use of enamel matrix derivative and atelocollagen sponge scaffold on osteoblastic differentiation of mouse induced pluripotent stem cells in vitro. J Periodontal Res 2017; 53:240-249. [PMID: 29044527 DOI: 10.1111/jre.12511] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND OBJECTIVE Induced pluripotent stem cells (iPSCs) are a candidate cell source in periodontal regenerative therapy. Enamel matrix derivative (EMD) has been shown to regenerate periodontal tissues, and atelocollagen sponge (ACS) is considered a suitable scaffold or carrier for growth factors. This study aimed to investigate the effect of combined use of EMD and an ACS scaffold on cell behaviors and differentiation of mouse iPSCs (miPSCs) in vitro. MATERIAL AND METHODS Following embryonic body formation from miPSCs, dissociated cells (miPS-EB-derived cells) were seeded onto ACS with or without EMD, and cultured in osteoblast differentiation medium. Scanning electron microscopy and histological analyses were used to assess cell morphology and infiltration within the ACS. Cell viability (metabolism) was determined using an MTS assay, and expression of mRNA of osteoblastic differentiation markers was assessed by quantitative RT -PCR. Alkaline phosphatase (ALP) staining intensity and activity were evaluated. Mineralization was assessed by von Kossa staining, and calcium content was quantitated using the methylxylenol blue method. RESULTS By 24 hours after seeding, miPS-EB-derived cells in both the EMD and control groups had attached to and infiltrated the ACS scaffold. Scanning electron microscopy images revealed that by day 14, many cytoplasmic protrusions and extracellular deposits, suggestive of calcified matrix, were present in the EMD group. There was a time-dependent increase in cell viability up to day 3, but no difference between groups was observed at any time point. The levels expressed of ALP and osterix genes were significantly higher in the EMD group than in the control group. Expression of runt-related transcription factor 2 was increased in the EMD group compared with the control group on day 7. EMD upregulated the expression of bone sialoprotein and osteopontin on day 14, whereas expression of osteocalcin was lower at all time points. The staining intensity and activity of ALP were higher in the EMD group than in the control group. Mineralization levels and calcium contents were significantly higher in the EMD group throughout the observation period. CONCLUSION These data suggest that combining ACS with EMD increases levels of osteoblastic differentiation and mineralization in miPS-EB-derived cells, compared with ACS used alone.
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Affiliation(s)
- Y Hisanaga
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - E Suzuki
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - H Aoki
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - M Sato
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - A Saito
- Department of Biochemistry, Tokyo Dental College, Tokyo, Japan.,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | - A Saito
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan.,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | - T Azuma
- Department of Biochemistry, Tokyo Dental College, Tokyo, Japan.,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
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Saito A, Okiyama N, Kubota N, Fujimoto M. 666 Interferon-γ deficiency attenuates skin fibrosis in a murine model of chronic graft-versus-host disease-like scleroderma. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Izaki S, Hashimoto B, Yamaga T, Furuya M, Miyauchi A, Tanaka S, Ishizuka K, Suzuki M, Saito A, Kubota A, Tajima T, Narukawa S, Hara W, Yoshida N, Oji S, Dembo T, Fukaura H, Nomura K. Current status of MG-QOL 15-J score in Saitama prefecture 2017. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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49
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Miki K, Saito A, Nakashima T, Nagata Y. The Planning Configurations Optimization for Treatment Planning of VMAT With Design of Experiments. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Oji S, Narukawa S, Ishizuka K, Hashimoto B, Yamaga T, Furuya M, Miyauchi A, Tanaka S, Suzuki M, Saito A, Tajima T, Hara W, Kubota A, Izaki S, Yoshida N, Dembo T, Fukaura H, Kaida K, Nomura K. Serum potassium level and short-term prognosis in patients with anti-GM1 antibody positive Guillan-Barre syndrome - preliminary study -. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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