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Abe K, Sugiyama A, Ito N, Miwata K, Kitahara Y, Okimoto M, Mirzaev U, Kurisu A, Akita T, Ko K, Takahashi K, Kubo T, Takafuta T, Tanaka J. Variant-specific Symptoms After COVID-19: A Hospital-based Study in Hiroshima. J Epidemiol 2024; 34:238-246. [PMID: 37574270 PMCID: PMC10999520 DOI: 10.2188/jea.je20230103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/12/2023] [Indexed: 08/15/2023] Open
Abstract
BACKGROUND Symptoms after novel coronavirus disease 2019 (COVID-19) recovery by severe acute respiratory syndrome coronavirus 2 strains are unspecified. METHODS This self-administered questionnaire-based study was conducted to investigate symptoms after COVID-19 recovery at one of the main hospitals for COVID-19 treatment in Hiroshima, Japan, from September 2020 to March 2022 for patients who visited follow-up consultations after COVID-19. Study subjects were divided into four groups (Wild-type, Alpha, Delta, and Omicron periods) according to COVID-19 onset date. Hierarchical cluster analysis was performed to determine symptom clusters and investigate risk factors for each symptom cluster using multivariate analysis. RESULTS Among 385 patients who enrolled in this study, 249 patients had any persistent symptoms at a median of 23.5 (interquartile range, 20-31) days after COVID-19 onset. Among patients with any persistent symptoms, symptom clusters including olfactory or taste disorders, respiratory symptoms, and cardiac symptoms were found. Respiratory symptoms were more frequent among patients infected in the Omicron period compared to the Wild-type period (adjusted odds ratio [AOR] 3.13; 95% confidence interval [CI], 1.31-7.48). Compared to patients who recovered from mild COVID-19, patients who needed oxygen or ventilation support suffered fewer post-COVID-19 respiratory symptoms (AOR 0.46; 95% CI, 0.22-0.97) but more post-COVID-19 cardiac symptoms among them (AOR 2.67; 95% CI, 1.26-5.65). Olfactory or taste disorders were fewer among patients infected in the Omicron period compared to the Wild-type period (AOR 0.14; 95% CI, 0.04-0.46). CONCLUSION This study revealed that symptoms after COVID-19 may vary depending on the infected strain.
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Affiliation(s)
- Kanon Abe
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Noriaki Ito
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Kei Miwata
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | | | - Mafumi Okimoto
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Ulugbek Mirzaev
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Department of Hepatology, Scientific Research Institute of Virology, Ministry of Health of Uzbekistan, Tashkent, Uzbekistan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Amir I, Ito N, Tsubokura M. No need to panic over the release of 'treated water' containing tritium from Fukushima Daiichi Nuclear Power Station. QJM 2023; 116:957. [PMID: 37738579 PMCID: PMC10674086 DOI: 10.1093/qjmed/hcad211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Indexed: 09/24/2023] Open
Affiliation(s)
- I Amir
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, Hikarigaoka-1, Fukushima City, Fukushima 960-1295, Japan
| | - N Ito
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, Hikarigaoka-1, Fukushima City, Fukushima 960-1295, Japan
| | - M Tsubokura
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, Hikarigaoka-1, Fukushima City, Fukushima 960-1295, Japan
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Ito N, Sakamoto S, Obayashi F, Kanda T. Central odontogenic fibroma with amyloid: a diagnostically challenging case. Int J Oral Maxillofac Surg 2023; 52:1035-1038. [PMID: 36804052 DOI: 10.1016/j.ijom.2023.01.017] [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: 10/29/2022] [Revised: 12/29/2022] [Accepted: 01/12/2023] [Indexed: 02/19/2023]
Abstract
Odontogenic fibroma is a rare benign mesenchymal odontogenic tumor, with its histological diversity possibly posing diagnostic challenges. A case of the amyloid variant of central odontogenic fibroma, with epithelial cells in perineural and intraneural locations, is reported herein. The 46-year-old female patient had experienced discomfort related to her anterior right hard palate for approximately 25 years. Clinical examination revealed a depression in the anterior hard palate, and radiographic examination showed a well-defined radiolucent lesion with root resorption of the adjacent teeth. Histologically, the well-circumscribed tumor was composed of hypocellular collagenous connective tissue with small islands of odontogenic epithelium. In addition, the juxta-epithelial deposition of amyloid globules without calcification and epithelial cells in perineural and intraneural locations were observed, which posed a diagnostic challenge in differentiating the lesion from the non-calcifying variant of calcifying epithelial odontogenic tumor and sclerosing odontogenic carcinoma. However, on the basis of the clinical and radiographic findings, which were suggestive of a benign and slowly progressive process given the corticated, unilocular radiolucency, the considerable root resorption, and the long history of this finding in an otherwise healthy patient, the final diagnosis was amyloid variant of central odontogenic fibroma. Increased recognition of this variant of odontogenic fibroma and its differentiation from other more aggressive lesions could help the clinician to avoid overdiagnosis and overtreatment.
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Affiliation(s)
- N Ito
- Department of Oral Oncology, Hiroshima University Hospital, Hiroshima, Japan.
| | - S Sakamoto
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima, Japan
| | - F Obayashi
- Department of Oral Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - T Kanda
- Department of Oral and Maxillofacial Surgery, Hiroshima Prefectural Hospital, Hiroshima, Japan
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Ko K, Takahashi K, Ito N, Sugiyama A, Nagashima S, Miwata K, Kitahara Y, Okimoto M, Ouoba S, Akuffo GA, E B, Akita T, Takafuta T, Tanaka J. Despite low viral titer in saliva samples, Sanger-based SARS-CoV-2 spike gene sequencing is highly applicable for the variant identification. BMC Med Genomics 2023; 16:199. [PMID: 37620887 PMCID: PMC10463848 DOI: 10.1186/s12920-023-01633-5] [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: 06/15/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND This study aimed to compare the performance of Sanger-based SARS-CoV-2 spike gene sequencing and Next Generation Sequencing (NGS)-based full-genome sequencing for variant identification in saliva samples with low viral titer. METHODS Using 241 stocked saliva samples collected from confirmed COVID-19 patients between November 2020 and March 2022 in Hiroshima, SARS-CoV-2 spike gene sequencing (nt22735-nt23532) was performed by nested RT-PCR and Sanger platform using in-house primers. The same samples underwent full-genome sequencing by NGS using Illumina NextSeq2000. RESULTS Among 241 samples, 147 were amplified by both the Sanger and the Illumina NextSeq2000 NGS, 86 by Sanger only, and 8 were not amplified at all. The overall amplification rates of Illumina NextSeq2000 NGS and Sanger were 61% and 96.7%, respectively. At low viral titer (< 103 copies/mL), Illumina NextSeq2000 NGS provided 19.2% amplification, while Sanger was 89.7% (p < 0.0001). Both platforms identified 38 wild type, 54 Alpha variants, 84 Delta variants, and 57 Omicron variants. CONCLUSIONS Our study provided evidence to expand the capacity of Sanger-based SARS-CoV-2 spike gene sequencing for variants identification over full-genome by Illumina NextSeq2000 NGS for mass screening. Therefore, the feasible and simple Sanger-based SARS-CoV-2 spike gene sequencing is practical for the initial variants screening, which might reduce the gap between the rapid evolution of SARS-CoV-2 and its molecular surveillance.
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Affiliation(s)
- Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Noriaki Ito
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kei Miwata
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | | | - Mafumi Okimoto
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de La Santé (IRSS), Nanoro, Burkina Faso
| | - Golda Ataa Akuffo
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
- Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | | | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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Kitahara Y, Matsuura M, Yamasaki R, Nakamoto K, Kakumoto S, Tada S, Ito N, Miwata K, Okimoto M, Takafuta T. Concurrent lung adenocarcinoma hidden among multiple shadows of COVID-19 pneumonia: A rare and instructive case report. Clin Case Rep 2023; 11:e6859. [PMID: 36777793 PMCID: PMC9900237 DOI: 10.1002/ccr3.6859] [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: 09/27/2022] [Revised: 12/30/2022] [Accepted: 01/04/2023] [Indexed: 02/09/2023] Open
Abstract
A 40-year-old man was admitted with a diagnosis of COVID-19 pneumonia. Although most of multiple ground-glass opacities and consolidations on computed tomography improved, a round ground-glass opacity with consolidation remained unchanged and was suspected to be a part-solid nodule of lung adenocarcinoma. Pathologic diagnosis of resected tumor was papillary adenocarcinoma.
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Affiliation(s)
- Yoshihiro Kitahara
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Motoki Matsuura
- Department of Thoracic SurgeryHiroshima City Hiroshima Citizens HospitalHiroshimaJapan
| | - Rie Yamasaki
- Department of PathologyHiroshima City Hiroshima Citizens HospitalHiroshimaJapan
| | - Kanako Nakamoto
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Shinji Kakumoto
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Shinpei Tada
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Noriaki Ito
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Kei Miwata
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Mafumi Okimoto
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Toshiro Takafuta
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
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Ishii S, Sugiyama A, Ito N, Miwata K, Kitahara Y, Okimoto M, Kurisu A, Abe K, Imada H, Akita T, Kubo T, Nagasawa A, Nakanishi T, Takafuta T, Kuwabara M, Tanaka J. The role of discrimination in the relation between COVID-19 sequelae, psychological distress, and work impairment in COVID-19 survivors. Sci Rep 2022; 12:22218. [PMID: 36564428 PMCID: PMC9782263 DOI: 10.1038/s41598-022-26332-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Perceived discrimination and work impairment are commonly observed in COVID-19 survivors, but their relationship has not been well understood. We aimed to evaluate the role of discrimination in the development of psychological distress and work impairment in COVID-19 survivors. From April 2020 to November 2021, 309 patients were recruited at two designated COVID-19 hospitals in Japan. Participants completed a standardized questionnaire including COVID-19 sequelae, psychological distress, impairments in work performance and perceived discrimination. The majority of participants (62.5%) experienced one or more COVID-19 sequelae. Psychological distress was observed in 36.9% and work impairment in 37.9%. In multivariate logistic regression analyses, COVID-19 sequelae and discrimination were associated with both psychological distress and work impairment. Mediation analysis demonstrated that the direct effect of sequelae on work impairment was non-significant after accounting for psychological distress, suggesting that the effect of sequelae on work impairment was mainly mediated through psychological distress. These findings were replicated in a subgroup analysis limited to patients with mild COVID-19. We conclude that discrimination plays an important role in the development of psychological distress and work impairment, and that both discrimination and psychological distress should be targets of intervention in COVID-19 survivors.
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Affiliation(s)
- Shinya Ishii
- Department of Medicine for Integrated Approach to Social Inclusion, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Noriaki Ito
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Kei Miwata
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | | | - Mafumi Okimoto
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kanon Abe
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Hirohito Imada
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | | | | | - Masao Kuwabara
- Hiroshima Prefectural Center for Disease Control and Prevention, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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Ito N, Masuda T, Yamaguchi K, Sakamoto S, Horimasu Y, Nakashima T, Miyamoto S, Iwamoto H, Fujitaka K, Hamada H, Chayama K, Hattori N. Pneumonia and Meningoencephalitis Due to Varicella-zoster Virus Reinfection and Epstein-Barr Virus Reactivation in a Patient with Rheumatoid Arthritis. Intern Med 2022; 61:2961-2965. [PMID: 35249916 PMCID: PMC9593163 DOI: 10.2169/internalmedicine.8413-21] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
A 72-year-old woman with rheumatoid arthritis was treated with methotrexate (MTX) and iguratimod. Upon examination of a liver tumor, blisters due to varicella-zoster virus (VZV) infection were observed. Despite oral administration of valacyclovir, she developed varicella pneumonia and meningoencephalitis. A VZV antibody test revealed reinfection. The liver tumor shrank after discontinuance of MTX, and polymerase chain reaction revealed the reactivation of the Epstein-Barr virus (EBV). Therefore, we were unable to deny MTX-associated lymphoproliferative disorder (MTX-LPD). This is the first case of a complication of pneumonia and meningoencephalitis due to VZV reinfection and EBV reactivation.
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Affiliation(s)
- Noriaki Ito
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, Japan
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Japan
| | - Takeshi Masuda
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Japan
| | - Kakuhiro Yamaguchi
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Japan
| | - Shinjiro Sakamoto
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Japan
| | - Yasushi Horimasu
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Japan
| | - Taku Nakashima
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Japan
| | - Shintaro Miyamoto
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Japan
| | - Hiroshi Iwamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Kazunori Fujitaka
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Hironobu Hamada
- Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Kazuaki Chayama
- Collaborative Research Laboratory of Medical Innovation, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
- Research Center for Hepatology and Gastroenterology, Hiroshima University, Japan
- RIKEN Center for Integrative Medical Sciences, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
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Ito N, Kitahara Y, Miwata K, Okimoto M, Takafuta T. Comparison of COVID-19 pneumonia during the SARS-CoV-2 Omicron wave and the previous non-Omicron wave in a single facility. Respir Investig 2022; 60:772-778. [PMID: 36050273 PMCID: PMC9393185 DOI: 10.1016/j.resinv.2022.08.001] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/25/2022] [Accepted: 08/03/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND The characteristics of coronavirus disease 2019 (COVID-19) pneumonia caused by the severe acute respiratory syndrome coronavirus 2 Omicron variant have not been fully described. Unlike other variants, the Omicron variant replicates rapidly in the bronchus. Therefore, we hypothesized that it would have different computed tomography (CT) findings from non-Omicron variants. METHODS We enrolled patients with COVID-19 who visited our hospital and underwent chest CT during the first month of the Omicron wave (January 2022; N = 231) and the previous non-Omicron wave (July 2021; N = 87). We retrospectively evaluated the differences in the prevalence rate and CT characteristics of COVID-19 pneumonia between the two waves. RESULTS The prevalence of pneumonia was significantly lower in the Omicron wave group (79/231, 34.2%) compared to the previous wave group (67/87, 77.0%) (P < 0.001). For the predominant distribution pattern of pneumonia, the Omicron wave group revealed a significantly lower rate of the peripheral pattern and a higher rate of the random pattern than the previous wave group. In addition, the Omicron wave group had a significantly lower rate of consolidation than the previous wave group. The ground-glass opacities (GGOs) rate was similar between the two wave groups. For GGOs patterns, cluster-like GGOs along the bronchi on chest CT were more frequently observed during the Omicron wave than during the previous wave. CONCLUSION The Omicron wave group had a lower COVID-19 pneumonia prevalence than the previous wave group. Cluster-like GGOs should be noted as a characteristic CT finding of pneumonia during the Omicron wave.
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Affiliation(s)
- Noriaki Ito
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, 14-11 Funairi-saiwai-cho, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-0844, Japan
| | - Yoshihiro Kitahara
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, 14-11 Funairi-saiwai-cho, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-0844, Japan.
| | - Kei Miwata
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, 14-11 Funairi-saiwai-cho, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-0844, Japan
| | - Mafumi Okimoto
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, 14-11 Funairi-saiwai-cho, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-0844, Japan
| | - Toshiro Takafuta
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, 14-11 Funairi-saiwai-cho, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-0844, Japan
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9
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Ito N, Kitahara Y, Miwata K, Okimoto M, Takafuta T. Can the Omicron variant of COVID-19 cause pneumonia in young patients without risk factors? Clin Case Rep 2022; 10:e05684. [PMID: 35521047 PMCID: PMC9066735 DOI: 10.1002/ccr3.5684] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 02/01/2022] [Revised: 03/02/2022] [Accepted: 03/20/2022] [Indexed: 11/18/2022] Open
Abstract
The Omicron variant (B.1.1.529) of coronavirus disease 2019 (COVID‐19) has rapidly spread worldwide since December 2021. In daily medical practice, pneumonia does not often appear as a complication of the Omicron variant. We present a case of COVID‐19 pneumonia by the Omicron variant in young patients without obvious risk factors.
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Affiliation(s)
- Noriaki Ito
- Department of Internal Medicine Hiroshima City Funairi Citizens Hospital Hiroshima Japan
| | - Yoshihiro Kitahara
- Department of Internal Medicine Hiroshima City Funairi Citizens Hospital Hiroshima Japan
| | - Kei Miwata
- Department of Internal Medicine Hiroshima City Funairi Citizens Hospital Hiroshima Japan
| | - Mafumi Okimoto
- Department of Internal Medicine Hiroshima City Funairi Citizens Hospital Hiroshima Japan
| | - Toshiro Takafuta
- Department of Internal Medicine Hiroshima City Funairi Citizens Hospital Hiroshima Japan
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10
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Ito N, Kitahara Y, Miwata K, Okimoto M, Takafuta T. Risk factors for progression to acute respiratory failure after casirivimab and imdevimab administration: A retrospective study. Respir Investig 2022; 60:578-584. [PMID: 35589514 PMCID: PMC9110271 DOI: 10.1016/j.resinv.2022.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/10/2022] [Accepted: 04/12/2022] [Indexed: 01/08/2023]
Abstract
Background Casirivimab and imdevimab are effective in preventing hospitalization in outpatients with coronavirus disease 2019 (COVID-19); however, disease progression after casirivimab and imdevimab administration has been reported. This study aimed to elucidate the risk factors for disease progression after casirivimab and imdevimab administration. Methods This retrospective study included patients with COVID-19 who received casirivimab and imdevimab at Hiroshima City Funairi Citizens Hospital between August 6, 2021, and October 10, 2021. All patients had at least one risk factor for severe disease and were treated on admission. The patients’ background characteristics and test results at the first visit were analyzed. The patients were divided into two groups (progressed and improved) based on whether they progressed to acute respiratory failure during hospitalization. Results Sixty-seven patients were included: 9 patients in the progressed group (median age, 56 years) and 58 patients in the improved group (median age, 51 years). Age, coexistence rate of diabetes, cycle threshold value of polymerase chain reaction test, rate of detectable pneumonia on chest radiographs or chest computed tomography images, lymphocyte count, and the levels of C-reactive protein, interleukin-6, glucose, and glycated hemoglobin were significantly different between the two groups. Multivariate logistic regression analysis revealed that the coexistence of diabetes and the presence of detectable pneumonia on chest radiographs were independent factors predicting the progression to acute respiratory failure. Conclusion Acute respiratory failure after antibody therapy with casirivimab and imdevimab may develop in patients with diabetes or detectable pneumonia on chest radiographs at the first visit.
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11
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Koga M, Kinoshita Y, Kato H, Kobayashi H, Shinoda Y, Nangaku M, Makita N, Dahir KM, Ito N. Massive calcification around large joints in a patient subsequently diagnosed with adult-onset hypophosphatasia. Osteoporos Int 2022; 33:505-509. [PMID: 34494146 DOI: 10.1007/s00198-021-06145-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022]
Abstract
We report a 64-year-old Japanese woman with a history of progressive loss of motor function and painful swelling of large joints. At the age of 54, profound calcification appeared around the shoulder and hip joints, which did not heal after repeated surgical resections. Iliac bone biopsy revealed osteomalacic changes. Laboratory data showed low serum alkaline phosphatase (ALP) activity and a high urine phosphoethanolamine (PEA) concentration with normal serum calcium, phosphate, and fibroblast growth factor 23 (FGF23) levels. Subsequent genetic analysis of the ALPL gene confirmed the diagnosis of hypophosphatasia (HPP) with the identification of a heterozygous single nucleotide deletion, c.1559delT (p.Leu520ArgfsX86). We started a mineral-targeted enzyme replacement therapy, asfotase alfa (AA), to treat the patient's musculoskeletal symptoms. A follow-up bone biopsy after 12 months of AA treatment showed improvement of osteomalacia. Calcified deposits around the large joints were unchanged radiographically. To our knowledge, this is the first report of a patient with an adult-onset HPP who presented with profound calcification around multiple joints. Nonspecific clinical signs and symptoms in patients with adult-onset HPP often result in delayed diagnosis or misdiagnosis. We propose that bone biopsy and genetic analysis should be considered along with laboratory analysis for all patients with ectopic calcification around joints of unknown etiology for accurate diagnosis and better treatment.
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Affiliation(s)
- M Koga
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Y Kinoshita
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Kato
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Kobayashi
- Department of Orthopedic Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Y Shinoda
- Department of Rehabilitation Medicine, The University of Tokyo Hospital, Tokyo, Japan
| | - M Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - N Makita
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - K M Dahir
- Vanderbilt University Medical Center, Program for Metabolic Bone Disorders, Nashville, TN, USA
| | - N Ito
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
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12
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Ito N, Masuda T, Ooka I, Hosoya T, Yamaguchi K, Sakamoto S, Horimasu Y, Nakashima T, Miyamoto S, Iwamoto H, Fujitaka K, Hamada H, Hattori N. First-line osimertinib treatment in a patient with lung adenocarcinoma with coexisting epidermal growth factor receptor G719S and de novo T790M mutations. Thorac Cancer 2022; 13:771-774. [PMID: 35076999 PMCID: PMC8888148 DOI: 10.1111/1759-7714.14288] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 11/28/2022] Open
Abstract
Osimertinib is the standard treatment for non-small cell lung cancer (NSCLC) with an active epidermal growth factor receptor (EGFR) mutation and a T790M mutation-present in cases of acquired resistance. However, there have been no reports on the efficacy of osimertinib in patients with EGFR G719S and de novo T790M mutations. Here, we present the case of a 71-year-old woman who received first-line osimertinib for lung adenocarcinoma with G719S and de novo T790M mutations. A partial response was observed after osimertinib initiation; however, the disease progressed 5 months after. Next-generation sequencing using a rebiopsy sample from the brain metastases revealed no newly acquired resistance mutations, including EGFR C797S. From experience, the efficacy of osimertinib in NSCLC with G719S and T790M compound mutations may be poor. Therefore, optimal treatment for these cases should be determined.
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Affiliation(s)
- Noriaki Ito
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan.,Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Takeshi Masuda
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Ikuko Ooka
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Takatsune Hosoya
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Kakuhiro Yamaguchi
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinjiro Sakamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Yasushi Horimasu
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Taku Nakashima
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shintaro Miyamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Hiroshi Iwamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazunori Fujitaka
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hironobu Hamada
- Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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13
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Ito N, Masuda T, Yamaguchi K, Sakamoto S, Horimasu Y, Nakashima T, Miyamoto S, Iwamoto H, Fujitaka K, Hamada H, Hattori N. Pneumatosis Intestinalis following Radiation Esophagitis during Chemoradiotherapy for Lung Cancer: A Case Report. Case Rep Oncol 2021; 14:1454-1459. [PMID: 34899236 PMCID: PMC8613634 DOI: 10.1159/000518315] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 07/05/2021] [Indexed: 11/19/2022] Open
Abstract
Pneumatosis intestinalis (PI) is a rare disease that forms emphysema lesions under the mucosa and serosa of the gastrointestinal tract. We present the first case of PI following radiation-induced esophagitis during chemoradiotherapy (CRT) for lung cancer. A 74-year-old man with severe chronic obstructive pulmonary disease (COPD) was treated with CRT for lung cancer. During the treatment, he presented with vomiting and abdominal distention. CT showed pneumatosis from the esophagus to the small intestine. Severe radiation-induced esophagitis was observed, and gastrointestinal endoscopy revealed a circumferential esophageal ulcer. From these observations, this case was diagnosed as PI following severe esophagitis. A nasogastric tube was inserted, and conservative treatment with fasting, fluid replacement, and antibiotic was performed. Four days after the onset of PI, CT showed marked improvement of the pneumatosis. When CRT is performed for lung cancer patients, we should not only consider esophagitis but also PI. The presence of COPD may be considered a specific factor for the development of severe esophagitis and the consequent PI in this case.
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Affiliation(s)
- Noriaki Ito
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Takeshi Masuda
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Kakuhiro Yamaguchi
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinjiro Sakamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Yasushi Horimasu
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Taku Nakashima
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shintaro Miyamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Hiroshi Iwamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazunori Fujitaka
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hironobu Hamada
- Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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14
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Sawano T, Ito N, Ozaki A, Nishikawa Y, Nonaka S, Kobashi Y, Higuchi A, Tsubokura M. Evacuation of residents in a natural disaster during the COVID-19 era. QJM 2021; 114:445-446. [PMID: 33647970 PMCID: PMC7989190 DOI: 10.1093/qjmed/hcab044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Indexed: 11/16/2022] Open
Affiliation(s)
- T Sawano
- Research Center for Community Health, Minamisoma Municipal General Hospital, 54-6, 2 Choume, Takami-cho, Haramachi-ku, Minamisoma, Fukushima 975-0033, Japan
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, 1 Banchi, Hikarigaoka, Fukushima, Fukushima 960-1247, Japan
- Department of Surgery, Jyoban Hospital of Tokiwa Foundation, 57 Banchi, Jyobankamiyunaga-Yamachi, Iwaki, Fukushima 972-8322, Japan
- Address correspondence to Dr T. Sawano, Research Center for Community Health, Minamisoma Municipal General Hospital, Fukushima 975-0033, Japan.
| | - N Ito
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, 1 Banchi, Hikarigaoka, Fukushima, Fukushima 960-1247, Japan
| | - A Ozaki
- Research Center for Community Health, Minamisoma Municipal General Hospital, 54-6, 2 Choume, Takami-cho, Haramachi-ku, Minamisoma, Fukushima 975-0033, Japan
- Department of Breast Surgery, Jyoban Hospital of Tokiwa Foundation, 57 Banchi, Jyobankamiyunaga-Yamachi, Iwaki, Fukushima 972-8322, Japan
| | - Y Nishikawa
- Department of Internal Medicine, Soma Central Hospital, 5-18, 3 Choume, Okinouchi, Soma, Fukushima 976-0016, Japan
| | - S Nonaka
- Research Center for Community Health, Minamisoma Municipal General Hospital, 54-6, 2 Choume, Takami-cho, Haramachi-ku, Minamisoma, Fukushima 975-0033, Japan
| | - Y Kobashi
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, 1 Banchi, Hikarigaoka, Fukushima, Fukushima 960-1247, Japan
| | - A Higuchi
- Medical Governance Research Institute, 12-13, 2 Choume, Takanawa, Minato-ku, Tokyo 108-0074, Japan
| | - M Tsubokura
- Research Center for Community Health, Minamisoma Municipal General Hospital, 54-6, 2 Choume, Takami-cho, Haramachi-ku, Minamisoma, Fukushima 975-0033, Japan
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, 1 Banchi, Hikarigaoka, Fukushima, Fukushima 960-1247, Japan
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15
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Ito N, Hishikari K, Hikita H, Takahashi A, Yonetsu T, Sasano T. Images of angioscopy and intravascular ultrasound for dislodged Angio-Seal ® VIP vascular closure device. Cardiovasc Interv Ther 2021; 37:585-586. [PMID: 34623610 DOI: 10.1007/s12928-021-00814-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/20/2021] [Indexed: 11/24/2022]
Affiliation(s)
- N Ito
- Cardiovascular Center, Yokosuka Kyosai Hospital, 1-16 Yonegahama-Dori, Yokosuka City, Kanagawa Prefecture, 238-8558, Japan.
| | - K Hishikari
- Cardiovascular Center, Yokosuka Kyosai Hospital, 1-16 Yonegahama-Dori, Yokosuka City, Kanagawa Prefecture, 238-8558, Japan
| | - H Hikita
- Cardiovascular Center, Yokosuka Kyosai Hospital, 1-16 Yonegahama-Dori, Yokosuka City, Kanagawa Prefecture, 238-8558, Japan
| | - A Takahashi
- Cardiovascular Center, Yokosuka Kyosai Hospital, 1-16 Yonegahama-Dori, Yokosuka City, Kanagawa Prefecture, 238-8558, Japan
| | - T Yonetsu
- Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Sasano
- Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan
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16
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Watari N, Yamaguchi K, Masuda T, Ito N, Sakamoto S, Horimasu Y, Miyamoto S, Nakashima T, Iwamoto H, Fujitaka K, Hamada H, Hattori N. Tolerability and efficacy of IMpower133 regimen modified for dialysis patients with extensive-stage small cell lung cancer: Two case reports. Thorac Cancer 2021; 12:2956-2960. [PMID: 34587368 PMCID: PMC8563152 DOI: 10.1111/1759-7714.14166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 12/17/2022] Open
Abstract
The IMpower133 regimen, composed of atezolizumab/etoposide (VP-16)/carboplatin (CBDCA), is the standard first-line treatment for extensive-stage small cell lung cancer (ES-SCLC). However, the safety and efficacy of triplet therapy in patients receiving dialysis have not been sufficiently evaluated. Here, we report two cases of dialysis patients with ES-SCLC who received the modified IMpower133 regimen. Patient 1 was a 69-year-old man, and patient 2 was a 73-year-old man who received dialysis because of end-stage renal failure caused by diabetic nephropathy. Both patients received a modified IMpower133 regimen in the following order: atezolizumab (1200 mg/body) on day 1, VP-16 (50 mg/m2 ) on days 1 and 3, and CBDCA (300 mg/m2 ) on day 1. Four hours of dialysis was performed 1 hour after completing the administration of CBDCA on Day 1 and 2 hours after completing the administration of VP-16 on Day 3. Both patients achieved a partial response and received atezolizumab maintenance therapy after four cycles of triplet therapy without uncontrollable adverse events. By modifying the dosage, the order of drugs, and the timing of dialysis, the IMpower133 regimen may be tolerable and effective for patients receiving dialysis.
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Affiliation(s)
- Naokazu Watari
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Kakuhiro Yamaguchi
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Takeshi Masuda
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Noriaki Ito
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinjiro Sakamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Yasushi Horimasu
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shintaro Miyamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Taku Nakashima
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Hiroshi Iwamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Kazunori Fujitaka
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Hironobu Hamada
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Noboru Hattori
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
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17
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Fujii Y, Iwasaki R, Ikeda S, Chimura S, Goto M, Yoshizaki K, Sakai H, Ito N, Mori T. Gastrointestinal stromal tumour lacking mutations in the KIT and PDGFRA genes in a cat. J Small Anim Pract 2021; 63:239-243. [PMID: 34409605 DOI: 10.1111/jsap.13416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/05/2021] [Accepted: 08/06/2021] [Indexed: 11/28/2022]
Abstract
Molecular subtyping in gastrointestinal stromal tumours is a useful method for predicting the efficacy of treatment using tyrosine kinase inhibitors in humans. However, owing to the paucity of reports on mutational analyses, the association between genetic mutations and the therapeutic response to tyrosine kinase inhibitors remains unclear in feline gastrointestinal stromal tumours. In this report, we describe the case of a cat with a gastrointestinal stromal tumour which was unresponsive to tyrosine kinase inhibitors. A mutational analysis revealed that the cat lacked mutations in both the KIT and platelet-derived growth factor receptor-alpha (PDGFRA) genes. Our findings are consistent with the fact that KIT/PDGFRA wild-type gastrointestinal stromal tumours are less responsive to tyrosine kinase inhibitors in humans. This signifies the need for further evaluation and possibly individualised treatment for gastrointestinal stromal tumours in cats on the basis of mutational analyses.
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Affiliation(s)
- Y Fujii
- Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Gifu, Japan.,Animal Medical Centre, Gifu University, Gifu, Gifu, Japan
| | - R Iwasaki
- Animal Medical Centre, Gifu University, Gifu, Gifu, Japan
| | - S Ikeda
- Chimura Animal Hospital, Iwakura, Aichi, Japan
| | - S Chimura
- Chimura Animal Hospital, Iwakura, Aichi, Japan
| | - M Goto
- Laboratory of Veterinary Pathology, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - K Yoshizaki
- Laboratory of Veterinary Pathology, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - H Sakai
- Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Gifu, Japan.,Laboratory of Veterinary Pathology, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - N Ito
- Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Gifu, Japan
| | - T Mori
- Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Gifu, Japan.,Animal Medical Centre, Gifu University, Gifu, Gifu, Japan
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18
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Kato H, Koga M, Kobayashi H, Maki H, Ikemura M, Kurokawa M, Nangaku M, Makita N, Ito N. Primary bone adult T cell lymphoma with multiple skeletal lesions and debilitating painful osteolysis: a case report. Osteoporos Int 2021; 32:1013-1017. [PMID: 33128574 DOI: 10.1007/s00198-020-05720-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 10/27/2020] [Indexed: 10/23/2022]
Abstract
There have been only a limited number of reports on primary adult T cell lymphoma/leukemia (ATL) in the bone. This is a case report of a 75-year-old patient initially reporting multiple bone pains that were attributed to osteolytic ATL. The patient developed spontaneous chest/back pain and visited a local hospital. Laboratory tests showed high levels of alkaline phosphatase (ALP), and computed tomography (CT) revealed skeletal lesions with osteolysis. Although multiple myeloma was initially suspected, the results of bone marrow aspiration and bone biopsy were inconsistent. After he was referred to our hospital, mild hypercalcemia (10.4 mg/dL) with low-normal intact parathyroid hormone (PTH) (27 pg/mL), low parathyroid hormone-related protein (PTHrP), and elevated 1,25-dihydroxy vitamin D (1,25OH2D) levels (136 pg/mL) narrowed the differential diagnosis down to lymphomatous and granulomatous diseases, and then, the high serum soluble IL-2 receptor (3,450 U/mL) and the flower cells recognized in the peripheral blood sample suggested the involvement of ATL. Finally, the reevaluation of the iliac bone biopsy sample led us to the histological diagnosis of ATL infiltration in the bone. The subsequent two courses of chemotherapy in addition to denosumab resulted in an objective partial metabolic response indicated in 18-fluorine-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). Although very rare, the bone involvement of ATL could be used for the differential diagnosis for local osteolytic bone pain in addition to multiple myeloma and metastatic bone diseases.
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Affiliation(s)
- H Kato
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - M Koga
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Kobayashi
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Maki
- Department of Hematology and Oncology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - M Ikemura
- Department of Pathology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - M Kurokawa
- Department of Hematology and Oncology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - M Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - N Makita
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - N Ito
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
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19
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Ito N, Umazume M, Ojima Y, Shibata D, Ida Y, Komiya T, Matsumura H. Comparison of traditional two-injection dorsal digital block versus transthecal and subcutaneous single-injection digital block: A systematic review and meta-analysis. Hand Surg Rehabil 2021; 40:369-376. [PMID: 33895422 DOI: 10.1016/j.hansur.2021.04.004] [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] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 02/07/2021] [Accepted: 04/14/2021] [Indexed: 10/21/2022]
Abstract
Digital nerve block is a common procedure with several techniques, including the traditional digital nerve block, transthecal digital nerve block, and single subcutaneous palmar digital nerve block. This review aimed to evaluate the efficacy of these three methods. A systematic search was performed in the PubMed, Scopus, and Cochrane Library databases. The risk of bias of the studies was assessed using the Cochrane Collaboration's tool for assessing the risk of bias and the Risk of Bias Assessment Tool for Non-Randomized Studies. Fourteen prospective randomized controlled studies and one prospective comparative study were included. The three methods of digital block showed similar onset times, durations, injection pain and incidence of incomplete anesthesia. This review confirmed that all three methods of digital block are equally effective. Considering that patients prefer a single injection and the potential risk of complications, the single subcutaneous digital block could be more widely used.
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Affiliation(s)
- N Ito
- Department of Plastic and Reconstructive Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan
| | - M Umazume
- Department of Plastic and Reconstructive Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan
| | - Y Ojima
- Department of Plastic and Reconstructive Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan
| | - D Shibata
- Department of Plastic and Reconstructive Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan
| | - Y Ida
- Department of Plastic and Reconstructive Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan
| | - T Komiya
- Department of Plastic and Reconstructive Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan
| | - H Matsumura
- Department of Plastic and Reconstructive Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan.
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20
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Ito N, Masuda T, Nakashima T, Nakao S, Yamaguchi K, Sakamoto S, Horimasu Y, Miyamoto S, Iwamoto H, Fujitaka K, Hamada H, Hattori N. Autoantibody Positivity Is a Risk Factor for Chemotherapy-induced Exacerbation of Interstitial Pneumonia in Lung Cancer. Anticancer Res 2021; 41:1497-1506. [PMID: 33788742 DOI: 10.21873/anticanres.14908] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND No study has yet investigated the incidence of chemotherapy-induced acute exacerbation of interstitial pneumonia (AE-IP) in patients with autoantibody-positive IP and lung cancer. Herein, we retrospectively compared the incidence of chemotherapy-induced AE-IP in patients with lung cancer between those with autoantibody-positive and -negative IP. PATIENTS AND METHODS Between October 2003 and December 2018, patients with lung cancer who received chemotherapy, underwent serological test of antinuclear antibody or rheumatoid factor, and were diagnosed with IP were enrolled. RESULTS A total of 81 patients were enrolled; autoantibody-positive cases were observed in 23.5%. Autoantibody positivity was an independent risk factor for chemotherapy-induced AE-IP at 6 months after initiation of chemotherapy for lung cancer. The time to onset of AE-IP was significantly shorter in autoantibody-positive patients than in the seronegative patients. CONCLUSION Chemotherapy-induced AE-IP developed earlier in patients with autoantibody than in those without. Therefore, the potential development of AE-IP in autoantibody-positive patients warrants monitoring.
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Affiliation(s)
- Noriaki Ito
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Takeshi Masuda
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan;
| | - Taku Nakashima
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Satoshi Nakao
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kakuhiro Yamaguchi
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinjiro Sakamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Yasushi Horimasu
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shintaro Miyamoto
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Hiroshi Iwamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazunori Fujitaka
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hironobu Hamada
- Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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21
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Kadoya Y, Zen K, Tamaki N, Yashige M, Takamatsu K, Ito N, Kuwabara K, Yamano M, Yamano T, Nakamura T, Matsushima S, Yaku H, Matoba S. Prognostic value of cardiac 123I-metaiodobenzylguanidine imaging for predicting cardiac events after transcatheter aortic valve replacement. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0274] [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
In patients with aortic valve stenosis (AS), cardiac sympathetic nervous (CSN) dysfunction and its improvement after TAVR have been reported; however, the prognostic impact of CSN function remains unclear. This study investigated the prognostic value of cardiac 123I-metaiodobenzylguanidine (MIBG) imaging for the prediction of cardiac events after transcatheter aortic valve replacement (TAVR).
Methods
This study was a single-center prospective observational study that enrolled patients with AS or failed surgical bioprostheses between July 2017 and May 2019. MIBG scintigraphy was performed before and after TAVR to evaluate the delayed heart–mediastinum ratio (d-H/M). Patients were classified into three pairs of groups based on the baseline and post-TAVR d-H/M (≥2.0 or <2.0) and on the presence of TAVR-related improvement of d-H/M. The study endpoints were major adverse cardiac events (MACE), including all-cause death, myocardial infarction, and hospitalization due to heart failure. The association of d-H/M with MACE following TAVR was based on a Cox proportional hazards ratio model adjusted for multiple prognostic variables.
Results
Of 187 consecutive patients who underwent TAVR, 111 (31 men; median age: 86 years) were evaluated. Over a median follow-up of 366 days, 16 (14.4%) patients had MACE. The incidence of MACE was significantly lower in patients with d-H/M improvement and/or the high post-TAVR d-H/M (≥2.0). Post-TAVR d-H/M had significant impacts on MACE, with an adjusted hazard ratio of 1.326 (95% confidence interval, 0.139–2.515; p=0.027).
Conclusions
Both d-H/M improvement and high post-TAVR d-H/M were associated with better prognosis in patients who underwent TAVR. Cardiac MIBG imaging was useful for predicting cardiac events after TAVR.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Kadoya
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Zen
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Tamaki
- Kyoto Prefectural University of Medicine, Department of Radiology, Kyoto, Japan
| | - M Yashige
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Takamatsu
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Ito
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Kuwabara
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - M Yamano
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Yamano
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Nakamura
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Matsushima
- Kyoto Prefectural University of Medicine, Department of Radiology, Kyoto, Japan
| | - H Yaku
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Surgery, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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22
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Oshita H, Ito N, Senoo M, Funaishi K, Mitama Y, Okusaki K. The STOP-Bang Test Is Useful for Predicting the Severity of Obstructive Sleep Apnea. JMA J 2020; 3:347-352. [PMID: 33225107 PMCID: PMC7676986 DOI: 10.31662/jmaj.2020-0002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 01/15/2020] [Accepted: 07/20/2020] [Indexed: 11/15/2022] Open
Abstract
Introduction: The STOP-Bang test was used to detect patients at high risk of obstructive sleep apnea (OSA). We evaluated the usefulness of the STOP-Bang test for predicting the severity of OSA in Japanese patients. Methods: We retrospectively evaluated the patients who performed full polysomnography at the Mihara Medical Association Hospital. We evaluated the correlation between the STOP-Bang score and the apnea hypopnea index (AHI) using Spearman's rank correlation analysis. We then used multivariate analyses to examine the independent risk factor for severe OSA (AHI ≥ 30/hr). Results: One hundred seven patients were diagnosed as no (n = 5), mild (n = 17), moderate (n = 30), and severe (n = 55) OSA. The median age was 67 years old (range: 35-84), and 73 of the 107 patients were males. The correlation coefficient between the STOP-Bang score and AHI was 0.701 (P < 0.001). A STOP-Bang score ≥ 5 had sensitivity of 80.0% and specificity of 76.9% for detecting severe OSA. A STOP-Bang score ≥ 5 and BMI ≥ 30 kg/m2 were the independent risk factor for severe OSA. Conclusions: The STOP-Bang score correlates with AHI and is useful for predicting OSA severity. Polysomnography should be performed actively for the patients with high STOP-Bang scores.
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Affiliation(s)
- Hideto Oshita
- Department of Internal Medicine, Mihara Medical Association Hospital, Mihara, Japan
| | - Noriaki Ito
- Department of Respiratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Misato Senoo
- Department of Internal Medicine, Mihara Medical Association Hospital, Mihara, Japan
| | - Kunihiko Funaishi
- Department of Internal Medicine, Mihara Medical Association Hospital, Mihara, Japan
| | - Yasuyuki Mitama
- Department of Internal Medicine, Mihara Medical Association Hospital, Mihara, Japan
| | - Ken Okusaki
- Department of Internal Medicine, Mihara Medical Association Hospital, Mihara, Japan
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23
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Oshita H, Ito N, Senoo M, Funaishi K, Mitama Y, Okusaki K. [A Case of Lung Cancer Discovered Due to Unresponsive Course of Corticosteroids for Rheumatoid-Associated Interstitial Lung Disease]. Gan To Kagaku Ryoho 2020; 47:1493-1495. [PMID: 33130748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A 76-year-old female was followed up for rheumatoid arthritis-associated interstitial lung disease(RA-ILD). Consolidation and ground-glass opacities were observed in the right lung. When the corticosteroid was restarted due to a relapse of RA-ILD, most of the shadows disappeared. However, ground-glass nodules remained in the apex of the right lung. Thoracoscopic segmentectomy was performed, and lung cancer was diagnosed. Patients with rheumatoid arthritis suffer from complications such as RA-ILD, drug-induced pneumonia, pulmonary infections, and malignancies. A careful assessment of treatment response should be made in case of a differential diagnosis.
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Affiliation(s)
- Hideto Oshita
- Dept. of Internal Medicine, Mihara Medical Association Hospital
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24
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Oshita H, Ito N, Senoo M, Funaishi K, Mitama Y, Okusak K. [Development of Pulmonary Pleomorphic Carcinoma after Treatment for Infectious Bulla]. Gan To Kagaku Ryoho 2020; 47:1355-1357. [PMID: 33130699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A 54-year-old man with a history of smoking developed infectious bullae at the apex of his left lung and underwent long-term antimicrobial treatment. The bullae gradually reduced in size along with a slight left pleural thickening. Left back pain relapsed after a year, and CT revealed a rapid increase in pleural thickening. Left upper lobectomy led to the diagnosis of pulmonary polymorphic carcinoma. Chronic inflammation due to infection could contribute to carcinogenesis; therefore, post-inflammatory changes should be carefully followed-up.
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Affiliation(s)
- Hideto Oshita
- Dept. of Internal Medicine, Mihara Medical Association Hospital
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25
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Sakai Y, Sato S, Shindo T, Takahashi A, Kunishima Y, Kato R, Ito N, Okada M, Tachiki H, Taguchi K, Hirose T, Hotta H, Horita H, Matsukawa M, Muranaka T, Nishiyama K, Miyazaki A, Hashimoto K, Tanaka T, Masumori N. Anti-resorptive agent related osteonecrosis of the jaw (ARONJ) in urological malignancies: Is the risk different between kidney and prostate cancer patients? EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33316-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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26
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Shimojo Y, Nishimura T, Hazama H, Ito N, Awazu K. Picosecond Laser-Induced Photothermal Skin Damage Evaluation by Computational Clinical Trial. Laser Ther 2020; 29:61-72. [PMID: 32903975 DOI: 10.5978/islsm.20-or-08] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 04/23/2020] [Indexed: 01/07/2023]
Abstract
Background and Objectives Computational clinical trial (CCT) in the field of laser medicine promotes clinical application of novel laser devices, because this trial carried out based on numerical modeling of laser-tissue interactions and simulation of a series of treatment process. To confirm the feasibility of the computational clinical trial of skin treatment with a novel picosecond laser, this paper presents an evaluation method of the safety. Study Design/Materials and Methods In this method, the light propagation and thermal diffusion process after ultrashort light pulse irradiation to a numerical skin model is calculated and the safety based on the photothermal damage is evaluated by computational modeling and simulation. As an example, the safety of a novel picosecond laser device was examined by comparing with several laser devices approved for clinical use. Results The ratio of the maximum thermal damage induced by picosecond laser irradiation was 1.2 × 10-2 % at the epidermis, while that caused by approved laser irradiation was 99 % at the capillary vessels. The numerical simulation demonstrated that less thermal damage was observed compared with the approved devices. The results show the safety simulated by photothermal damage calculation was consistent with the reported clinical trials. Conclusions This computational clinical trial shows the feasibility of applying computational clinical trials for the safety evaluation of novel medical laser devices. In contrast to preclinical and clinical tests, the proposed computational method offers regulatory science for appropriately and quickly predicting and evaluating the safety of a novel laser device.
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Affiliation(s)
- Y Shimojo
- Graduate School of Engineering, Osaka University, Suita, Japan
| | - T Nishimura
- Graduate School of Engineering, Osaka University, Suita, Japan
| | - H Hazama
- Graduate School of Engineering, Osaka University, Suita, Japan
| | - N Ito
- Global Center for Medical Engineering and Informatics, Osaka University, Suita, Japan
| | - K Awazu
- Graduate School of Engineering, Osaka University, Suita, Japan.,Global Center for Medical Engineering and Informatics, Osaka University, Suita, Japan.,Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
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27
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Yamauchi-Kawaura C, Fujii K, Yamauchi M, Yamamoto S, Kozuka M, Ohzawa N, Suga N, Ito N. SHAPE ESTIMATION OF BOWTIE FILTERS BASED ON THE LUMINESCENCE FROM POLYETHYLENE TEREPHTHALATE RESIN BY X-RAY IRRADIATION. Radiat Prot Dosimetry 2019; 185:432-439. [PMID: 30916354 DOI: 10.1093/rpd/ncz031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 01/27/2019] [Accepted: 02/28/2019] [Indexed: 06/09/2023]
Abstract
In this study, we devised a novel method estimating the bowtie filter shapes by imaging luminescence from a polyethylene terephthalate (PET) resin with X-ray irradiation in a computed tomography (CT) scanner. The luminescence distribution of the PET resin corresponding to the thickness of bowtie filter was imaged using a charge-coupled device camera. On the assumption that the material of bowtie filter is aluminium (Al), the shape of bowtie filters was estimated from the correlation between Al attenuation curves and the angular-dependent luminance attenuation profiles according to the thickness of bowtie filters. Dose simulations based on the estimated bowtie filter shapes were performed using head and body PMMA phantoms with 16 and 32 cm in diameter. The simulated values of head and body weighted CT dose index (CTDIw) based on bowtie filter shape by the luminescence imaging method agreed within ~9% with the measured values by a dosemeter.
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Affiliation(s)
- C Yamauchi-Kawaura
- Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - K Fujii
- Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - M Yamauchi
- Division of Radiology, Aichi Medical University Hospital, Nagakute, Aichi 480-1195, Japan
| | - S Yamamoto
- Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - M Kozuka
- Department of Radiological Technology, School of Health Sciences, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - N Ohzawa
- Department of Radiological Technology, School of Health Sciences, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - N Suga
- Department of Radiological Technology, School of Health Sciences, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - N Ito
- Department of Radiological Technology, School of Health Sciences, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya 461-8673, Japan
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28
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Ito N, Zen K, Kadoya Y, Kuwabara K, Yamano M, Yamano T, Nakamura T, Numata S, Sakai O, Oka K, Yaku H, Matoba S. P932Structural changes in left ventricle after transcatheter aortic valve implantation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0527] [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
Background
Transcatheter aortic valve implantation (TAVI) has improved prognosis and quality of life of patients with severe aortic stenosis (AS) who had been considered inoperable or at high risk for surgical aortic valve replacement reflecting their age, frailty, and comorbidities. However, less is known about changes in cardiac geometry after TAVI procedure, and predictors of them.
Purpose
To clarify changes in cardiac geometry after TAVI, and their predictors.
Methods
We retrospectively analyzed patients with severe AS who underwent TAVI in our institute between May 2016 and June 2018. Of the 117 consecutive patients enrolled to this study, 12 patients died before six-month follow up, and finally 88 patients received follow up exams including echocardiography at six months after TAVI procedure.
Results
The analysis of echocardiographic data at the baseline and the six-month follow up of the 88 patients (age 86.2±4.0 years, male 19.3%, STS-PROM 6.76±3.28%, peak aortic jet velocity 4.67±0.75m/s) revealed that left ventricular end-diastolic volume index (LVEDVi) (from 80.1±20.9ml/m2to 74.2±15.9ml/m2, p=0.011), and left ventricular mass index (LVMi) (from 116.0±32.7g/m2to 93.6±25.6g/m2, p<0.001) had improved in six months after TAVI procedure. The difference of LVEDVi (ΔLVEDVi: six-month LVEDVi–baseline LVEDVi) and the difference of LVMi (ΔLVMi: six-month LVMi – baseline LVMi) were significantly higher in the patients with chronic atrial fibrillation compared to the rest (ΔLVEDVi: +7.7±8.7ml/m2 vs −7.2±18.1ml/m2, p=0.024; ΔLVMi: +7.1±11.5g/m2 vs −25.3±33.5g/m2, p=0.008). In echocardiographic data, ΔLVEDVi and ΔLVMi both had positive correlation between baseline E/e' ratio (ΔLVEDVi: r=0.224, p=0.048; ΔLVMi: r=0.240, p=0.034), and negative correlation between baseline LVEDVi (ΔLVEDVi: r=−0.674, p<0.001; ΔLVMi: r=−0.312, p=0.003), LVMi (ΔLVEDVi: r=−0.422, p<0.001; ΔLVMi: r=−0.699, p<0.001), peak aortic jet velocity (ΔLVEDVi: r=−0.257, p=0.016; ΔLVMi: r=−0.376, p<0.001), and mean transaortic pressure gradient (ΔLVEDVi: r=−0.269, p=0.011; ΔLVMi: r=−0.403, p<0.001).
Conclusion
TAVI resulted in reverse remodeling and regression of hypertrophy in left ventricle. And these improvement were grater in patients with more advanced left ventricular remodeling and hypertrophy, and higher severity of AS at the baseline, however, less in patients with chronic atrial fibrillation and worse diastolic dysfunction.
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Affiliation(s)
- N Ito
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Zen
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Kadoya
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Kuwabara
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - M Yamano
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Yamano
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Nakamura
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Numata
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - O Sakai
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Oka
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - H Yaku
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Kyoto, Japan
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29
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Kadoya Y, Zen K, Tamaki N, Ito N, Kuwabara K, Yamano M, Yamano T, Nakamura T, Yaku H, Matoba S. P1221Effect of transcatheter aortic valve implantation on cardiac sympathetic nervous function assessed by 123I-metaiodobenzylguanidine scintigraphy in patients with severe aortic stenosis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0179] [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
Background
Cardiac sympathetic nervous (CSN) function assessed by 123I-metaiodobenzylguanidine (MIBG) scintigraphy is associated with poor prognosis in patients with heart failure.
Purpose
The aim of this study was to investigate the effects of transcatheter aortic valve implantation (TAVI) on CSN function in patients with severe aortic stenosis (AS) using MIBG scintigraphy.
Methods
This was a single-center prospective observational study that enrolled patients between July 2017 and July 2018. Among 77 registered patients who scheduled to undergo TAVI, 35 patients (7 men; mean age: 87 years) were evaluated. The MIBG scintigraphy was performed at baseline and 6 months after TAVI procedure to evaluate the heart-mediastinum ratio (H/M) and washout rate (WR). The MIBG parameter changes were compared with B-type natriuretic peptide (BNP) levels and echocardiographic parameters, including aortic valve area (AVA), peak velocity (Vmax), mean pressure gradient (PG), and left ventricular ejection fraction (LVEF).
Results
All patients successfully underwent TAVI with improved BNP level (388±341 pg/mL vs. 167±118 pg/mL, p<0.001). The AVA, Vmax, mean PG and LVEF improved after TAVI (0.6±0.2 cm2 vs. 1.6±0.5 cm2, p<0.001; 4.6±0.8 m/s vs. 2.1±0.3 m/s, p<0.001; 54±20 mmHg vs. 9±3 mmHg, p<0.001; 58±11% vs. 63±9%, p=0.01, respectively). In the MIBG imaging, the delayed H/M significantly increased (2.5±0.6 vs. 2.6±0.7, p=0.03), and the WR decreased (32±8% vs. 29±8%, p=0.047) after TAVI. There was a correlation between the changes in the MIBG parameters and the change in mean PG from baseline to 6 months (delayed H/M: r=0.391, p=0.02; WR: r=0.347, p=0.04). Multivariate logistic regression analysis showed that baseline mean PG was an independent predictor of improved both delayed H/M and WR (odds ratio=1.062; 95% confidence interval: 1.009–1.137; p=0.042).
Conclusions
TAVI can improve the CSN function in patients with AS. Such CSN improvement was related with hemodynamic changes.
Acknowledgement/Funding
None
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Affiliation(s)
- Y Kadoya
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Zen
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Tamaki
- Kyoto Prefectural University of Medicine, Department of Radiology, Kyoto, Japan
| | - N Ito
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Kuwabara
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - M Yamano
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Yamano
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Nakamura
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - H Yaku
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Surgery, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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Tsuka T, Nishimura R, Hishinuma M, Murahata Y, Yamashita M, Azuma K, Osaki T, Ito N, Okamoto Y, Imagawa T. Reliability of ultrasonographic measurements of bovine sole structures in relation to sole horn thickness, measured by computed tomography, and sole horn hardness. J Dairy Sci 2019; 102:10105-10118. [PMID: 31521343 DOI: 10.3168/jds.2018-15175] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 06/03/2019] [Indexed: 11/19/2022]
Abstract
The goal of the present study was to determine the effect of sole horn thickness (SHT) and sole horn hardness (SHD) on ultrasonographic visualization of sole structures in the inner and outer claws of 150 Holstein-Friesian cows, and to evaluate different ultrasound frequencies for this purpose. Ultrasonographic views of the sole structure were considered complete when 3 echogenic lines, representing the ventral surface of the sole horn, the borders of the sole horn and soft-tissue layer, and the ventral surface of the distal phalanx, were seen. The proportion of complete ultrasonographic views of the sole structures, designated as the ultrasonographic visualization proportion (UVP), and the measurement errors of SHT were evaluated by comparing images from computed tomography (CT) and ultrasonography. The latter images were generated using 3 different probes, frequencies of 6.5 and 5.0 MHz, and 2 different ultrasound machines (#1 and #2) to assess the apex, middle, and heel regions of the claws. The UVP were 60.8 to 77.9% for the 6.5-MHz probe in ultrasound machine #1 (probe A), which were lower than those (>90%) for both the 5.0-MHz probe in ultrasound machine #1 (probe B) and the 5.0-MHz probe in ultrasound machine #2 (probe C). The UVP was significantly lower in claws with an SHD ≥50 units than in claws with an SHD <40 or 40 to <50 units (UVP: 77.1% compared with 93.7 and 91.4%, respectively) when measured with probe B. In claws with an SHT <10 mm, the UVP was significantly lower when SHD was ≥50 units compared with <40 or 40 to >50 units; the values were 69.0% versus 91.3 and 85.9%, respectively, for probe A, and 89.7% versus 100 and 100%, respectively, for probe B. When SHT were measured by either probes A or B in ultrasound machine #1, the proportions of claws in which ultrasonographic values were within a ±1 mm range compared with the values obtained by CT were 84.9 to 91.3% for CT-determined SHT <5 mm, 66.7 to 71.9% for CT-determined SHT 5 to <7 mm, 28.9 to 51.2% for CT-determined SHT 7 to <10 mm, and 6.2 to 19.7% for CT-determined SHT ≥10 mm. The data indicated that increased SHT was associated with a decrease in ultrasonographic measurement accuracy. In claws with an SHT <5 mm, the high proportion of ultrasonographic values that were accurate within a ±1 mm range suggests that this imaging modality would be useful in cows with thin soles.
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Affiliation(s)
- T Tsuka
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550.
| | - R Nishimura
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
| | - M Hishinuma
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
| | - Y Murahata
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
| | - M Yamashita
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
| | - K Azuma
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
| | - T Osaki
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
| | - N Ito
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
| | - Y Okamoto
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
| | - T Imagawa
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori, Japan, 680-8550
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Ito N, Oshita H, Isoyama S, Senoo M, Kawasaki K, Okusaki K. [A Case of Small Cell Lung Cancer Diagnosed with Metastasis-Induced Acute Pancreatitis]. Gan To Kagaku Ryoho 2019; 46:1175-1177. [PMID: 31296825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A 56-year-old man was admitted to our hospital for management of acute epigastric abdominal pain and elevation of pancreatic enzymes. The CT scan revealed enlargement ofthe pancreatic body as well as the lung tumor ofthe right hilar and superior mediastinum. Therefore, bronchoscopy was performed and a diagnosis of small cell lung cancer with metastasisinduced acute pancreatitis(MIAP)was made. Prompt improvement in pancreatic findings was observed following chemotherapy. MIAP, which is a rare complication of lung cancer may affect the prognosis and quality of life of the patients; therefore, rapid diagnosis and appropriate treatment are important.
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Affiliation(s)
- Noriaki Ito
- Dept. of Internal Medicine, Mihara Medical Association Hospital
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Kadoya Y, Zen K, Tamaki N, Ito N, Kuwabara K, Yamano M, Yamano T, Nakamura T, Sakai O, Oka K, Yaku H, Matoba S. 192Early effect of transcatheter aortic valve implantation on cardiac sympathetic nervous function assessed by 123i-metaiodobenzylguanidine scintigraphy in patients with severe aortic stenosis. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez144.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Kadoya
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Zen
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Tamaki
- Kyoto Prefectural University of Medicine, Department of Radiology, Kyoto, Japan
| | - N Ito
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Kuwabara
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - M Yamano
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Yamano
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Nakamura
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - O Sakai
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Surgery, Kyoto, Japan
| | - K Oka
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Surgery, Kyoto, Japan
| | - H Yaku
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Surgery, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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Yamauchi-Kawaura C, Yamamoto S, Fujii K, Komori M, Yamauchi M, Ohzawa N, Kozuka M, Suga N, Ito N, Fukuyama A. MEASUREMENT OF INTERNAL RADIATION DOSE DISTRIBUTION IN CT EXAMINATIONS USING POLYETHYLENE TEREPHTHALATE RESIN. Radiat Prot Dosimetry 2018; 181:303-309. [PMID: 29444315 DOI: 10.1093/rpd/ncy026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 02/06/2018] [Indexed: 06/08/2023]
Abstract
This study proposes a new dosimetry method for the estimation of the internal radiation dose distribution of a subject undergoing computed tomography (CT) examinations. In this novel method, dose distribution of a subject by CT scans was estimated based on radiophotoluminance distribution with polyethylene terephthalate (PET) resin which was cut to the average head size of a Japanese 1-year-old child. The difference in dose distribution depending on the type of bowtie filter was visualized by imaging luminance distribution with the PET phantom using a charge-coupled device camera. Dose distribution images simulated from a water phantom of the same size as the PET phantom were compared with the luminance distribution images. The linear correlation was demonstrated between luminance of the PET phantom and the simulated water dose. In comparison with the simulated water doses and the converted water doses from luminance of the PET phantom, the relative differences were within 20%.
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Affiliation(s)
- C Yamauchi-Kawaura
- Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - S Yamamoto
- Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - K Fujii
- Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - M Komori
- Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - M Yamauchi
- Division of Radiology, Aichi Medical University Hospital, Nagakute, Aichi, Japan
| | - N Ohzawa
- Department of Radiological Technology, School of Health Sciences, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - M Kozuka
- Department of Radiological Technology, School of Health Sciences, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - N Suga
- Department of Radiological Technology, School of Health Sciences, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - N Ito
- Department of Radiological Technology, School of Health Sciences, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - A Fukuyama
- Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
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Kawai M, Ito N, Ayuse T. Changes in surface tension of saliva in Down syndrome. Eur Rev Med Pharmacol Sci 2018; 22:6469-6474. [PMID: 30338816 DOI: 10.26355/eurrev_201810_16060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Surface tension in saliva might contribute to the maintenance of upper airway patency. The present study aimed to determine whether salivary surface tension is altered in patients with Down syndrome who are predisposed to upper airway collapse. PATIENTS AND METHODS We used the pull-off force technique to measure surface tension in samples (100 μL) of saliva collected from twenty-three male patients with Down syndrome and twenty-three healthy males (controls). p < 0.05 was considered to indicate significance. RESULTS Salivary surface tension was significantly lower in the patients than in the controls (57.3 ± 4.9 vs. 60.3 ± 4.7 mN/m; p = 0.039). Age and surface tension positively correlated in the patients (p = 0.001). CONCLUSIONS The lower surface tension of saliva in patients with Down syndrome might compensate for an anatomical predisposition towards upper airway collapsibility and other risk factors. The function of surface tension in saliva might be altered due to aging in such patients.
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Affiliation(s)
- M Kawai
- Department of Clinical Physiology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan.
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Hiramori S, Soga Y, Tomoi Y, Ito N, Hirose K, Shirai S, Ando K. P3566Impact of baseline characteristics on efficacy of cilostazol for patients performing endovascular therapy for femoropopliteal lesions. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3566] [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: 11/13/2022] Open
Affiliation(s)
- S Hiramori
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - Y Soga
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - Y Tomoi
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - N Ito
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - K Hirose
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - S Shirai
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - K Ando
- Kokura Memorial Hospital, Kitakyushu, Japan
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Takenouchi A, Toshishige M, Ito N, Tsudzuki M. Endogenous viral gene ev21 is not responsible for the expression of late feathering in chickens. Poult Sci 2018; 97:403-411. [PMID: 29253229 DOI: 10.3382/ps/pex345] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 10/17/2017] [Indexed: 11/20/2022] Open
Abstract
The late-feathering (LF) gene K on the Z chromosome is an important gene in the chicken industry, which is frequently utilized for the feather sexing, a type of autosexing, of neonatal chicks. The K gene is closely associated with the endogenous ev21 gene from an avian leukosis virus and the incomplete duplication (ID) of prolactin receptor (PRLR) and sperm flagellar protein 2 (SPEF2) genes, and ev21 has been used as a molecular marker to detect LF birds. In the present study, a comprehensive survey for the presence or absence of ev21 and ID across 1,994 birds from 52 chicken breeds, three commercial hybrid groups, and the Red Jungle Fowl revealed that almost all LF breeds have both ev21 and ID. However, only one LF breed (Ingie) has only ID and no ev21. Moreover, this study revealed that almost all early (normal)-feathering (EF) breeds lack both ev21 and ID, but only one breed (White Plymouth Rock) included EF birds with ev21 but no ID. Therefore, regarding LF expression, the results indicated that ID is responsible, but ev21 is not required. Henceforth, ID should be used as a molecular marker to detect LF birds instead of ev21. Because ev21 contains the full genome of an avian leukosis virus, there is a risk of disease development in breeds with this gene. Therefore, the Ingie breed, which has no ev21 at the K locus, represents excellent material for the establishment of new LF stocks.
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Affiliation(s)
- A Takenouchi
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - M Toshishige
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - N Ito
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan.,Yamaguchi Prefectural Agriculture and Forestry General Technology Center, Mine, Yamaguchi 759-2221, Japan
| | - M Tsudzuki
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan.,Japanese Avian Bioresource Project Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
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Kawasaki A, Ito N, Murai H, Yasutomi M, Naiki H, Ohshima Y. Skin inflammation exacerbates food allergy symptoms in epicutaneously sensitized mice. Allergy 2018; 73:1313-1321. [PMID: 29319896 DOI: 10.1111/all.13404] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 12/22/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Cutaneous exposure to food antigen through impaired skin barrier has been shown to induce epicutaneous sensitization, thereby causing IgE-mediated food allergies. OBJECTIVE We examined whether skin barrier impairment following epicutaneous sensitization exacerbates food allergies. METHODS BALB/c mice were epicutaneously sensitized by repeated application of ovalbumin (OVA) to MC903-pretreated ear skin for 48 hours weekly and then intragastrically challenged with OVA. After the first oral challenge, the skin barrier was disrupted with topical application of MC903 or by tape-stripping. Mice were monitored for changes in body temperature and the occurrence of diarrhea after undergoing the second oral challenge. Serum levels of mouse mast cell protease-1 (mmcp1) and OVA-specific IgE, IgG1, IgG2a antibodies and OVA-specific IgA levels in intestinal lavage fluid were measured by ELISA. Tissue accumulation of eosinophils was determined histologically. RESULTS Epicutaneously sensitized mice developed anaphylaxis after intragastric challenge, as evidenced by diarrhea, decreased body temperature, and increased serum mmcp1 levels. Skin barrier disruption by MC903 treatment or tape-stripping exacerbated allergic reactions induced by oral challenge. MC903 treatment increased serum baseline and postchallenge mmcp1 levels. Topical pretreatment with dexamethasone alleviated allergic reactions that were exacerbated by MC903 treatment. CONCLUSION Even after eliminating exposure to the antigen, inflammation from skin barrier disruption can exacerbate the severity of food allergy symptoms. Serum baseline mmcp1 levels might be an effective marker for predicting the severity of antigen-induced allergic symptoms.
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Affiliation(s)
- A. Kawasaki
- Department of Pediatrics Faculty of Medical Sciences University of Fukui Fukui Japan
| | - N. Ito
- Department of Pediatrics Faculty of Medical Sciences University of Fukui Fukui Japan
| | - H. Murai
- Department of Pediatrics Faculty of Medical Sciences University of Fukui Fukui Japan
| | - M. Yasutomi
- Department of Pediatrics Faculty of Medical Sciences University of Fukui Fukui Japan
| | - H. Naiki
- Department of Pathology Faculty of Medical Sciences University of Fukui Fukui Japan
| | - Y. Ohshima
- Department of Pediatrics Faculty of Medical Sciences University of Fukui Fukui Japan
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Katayama B, Ozawa T, Kuzuya S, Ito N, Awazu K, Tsuruta D. 1135 Photodynamic therapy against both methicillin-resistant Staphylococcus aureus and Pseudomonas aeruginosa. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1149] [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: 11/24/2022]
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Abstract
Eight pesticides were tested in a bioassay based on the induction of preneoplastic lesions in the liver. Rats were given diethylnitrosamine intraperitoneally at 200 mg/kg bw and two weeks later were treated with pesticides for six weeks and then killed; all rats had a partial hepatectomy at week 3. Hepatocarcinogenic potential was assessed by comparing the number and area of glutathione s-transferase (placental form) -positive foci In the liver with those of controls given diethylnitrosamine alone. Positive results were seen with Chinomethionat, Phosmet and Propiconazole; the results obtained with Captan and Prochloraz were borderline; Benomyl, Daminozide and Folpet gave negative results. Our findings provide enough experimental evidence to indicate that great care should be exercised in the use of these compounds.
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Affiliation(s)
- R Cabral
- First Department of Pathology, Nagoya City University Medical School, Japan
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Abstract
BACKGROUND AND OBJECTIVES Cell transplantation is a promising therapy for several muscle diseases, including Duchenne muscular dystrophy. Satellite cells are stem cells in skeletal muscle that provide an important cell source for transplantation therapy. However, culture of satellite cells in vitro causes them to lose their undifferentiated state, associated with reduced transplantation efficiency. It is therefore necessary to develop optimal culture conditions for maintaining the undifferentiated state of satellite cells. METHODS Primary satellite cells were cultured with or without leukemia inhibitory factor (LIF). The expression of undifferentiation and differentiation markers, and the transplantation efficiency were analyzed. RESULTS LIF-treated satellite cells showed increased expression of Pax7, and enhanced transplantation efficiency in a mouse model of Duchenne muscular dystrophy. CONCLUSIONS Our study showed that the treatment with LIF effectively maintained the undifferentiated state of satellite cells, and enhanced their transplantation efficiency. These results will contribute to the optimization of culture conditions for cell transplantation therapy.
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Affiliation(s)
- N Ito
- Department of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan.,Department of Rheumatology and Allergy, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, Japan
| | - N Shimizu
- Division of Rheumatology, Center for Antibody and Vaccine, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, Japan
| | - H Tanaka
- Department of Rheumatology and Allergy, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, Japan.,Division of Rheumatology, Center for Antibody and Vaccine, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo, Japan
| | - S Takeda
- Department of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
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Ito N, Edagawa S, Nakayama T, Nakamura Y, Ookubo Y, Kobayashi N, Chiba S. Idiopathic normal pressure hydrocephalus (iNPH) is a treatable disorder despite patient has severe dementia and is bedridden. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1870] [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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42
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Takahashi M, Shinya A, Ito N, Takehumi S, Sekiguchi T, Inaba A, Orimo S. Laterality of body surface temperature in patients of acute brainstem infarction with Horner's syndrome. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ito N, Watanabe S, Morita K, Morita K, Okuyama Y, Takizawa T, Suzuki K, Iida Y. THE EFFECT OF EXPIRATORY MUSCLE STRENGTH TRAINING ON THE SWALLOWING FUNCTIONS OF THE ELDERLY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.857] [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: 11/15/2022] Open
Affiliation(s)
- N. Ito
- Nihon Institute of Medical Science, Saitama, Japan,
- Graduate School of Gerontology J. F. Oberlin University, Tokyo, Japan,
| | - S. Watanabe
- Graduate School of Gerontology J. F. Oberlin University, Tokyo, Japan,
| | - K. Morita
- Mizuho-no-Sato Geriatric Health Services Facility, Saitama, Japan
| | - K. Morita
- Nihon Institute of Medical Science, Saitama, Japan,
- Graduate School of Gerontology J. F. Oberlin University, Tokyo, Japan,
| | - Y. Okuyama
- Nihon Institute of Medical Science, Saitama, Japan,
| | - T. Takizawa
- Nihon Institute of Medical Science, Saitama, Japan,
| | - K. Suzuki
- Nihon Institute of Medical Science, Saitama, Japan,
| | - Y. Iida
- Nihon Institute of Medical Science, Saitama, Japan,
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Nagayama Y, Ito N, Kuwahara D, Tsuchiya H, Yamaguchi S. Development of 2-D horn-antenna millimeter-wave imaging device (HMID) for the plasma diagnostics. Rev Sci Instrum 2017; 88:044703. [PMID: 28456234 DOI: 10.1063/1.4980150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The two-dimensional (2-D) Horn-antenna Millimeter-wave Imaging Device (HMID) has been developed for the O-mode Microwave Imaging Reflectometry (O-MIR) in the Large Helical Device (LHD). The detectable frequency range of the HMID is 23-33 GHz, which corresponds to the cutoff electron density of 0.8-1.5 × 1019 m-3 in the O-MIR. The HMID is a 2-D imaging device that improves on the horn-antenna mixer array, which had been developed for the X-mode MIR in the LHD. In the HMID, the signal (RF) wave from the horn antenna is transmitted to the microstrip line by the finline transmitter, and this is mixed by the double-balanced-mixer with the local oscillation wave that is fed by a coaxial cable. By using the HMID, the MIR optical system can be significantly simplified.
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Affiliation(s)
- Y Nagayama
- National Institute for Fusion Science, National Institute for Natural Sciences, Toki 509-5292, Japan
| | - N Ito
- National Institute of Technology, Ube College, Ube 755-8555, Japan
| | - D Kuwahara
- Tokyo University of Agriculture and Technology, Koganei 184-8588, Japan
| | - H Tsuchiya
- National Institute for Fusion Science, National Institute for Natural Sciences, Toki 509-5292, Japan
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Osaki T, Sakata I, Uto Y, Azuma K, Murahata Y, Tsuka T, Ito N, Imagawa T, Okamoto Y. Effect of TONS 501 sodium-mediated photodynamic therapy on EMT6 cells. Photodiagnosis Photodyn Ther 2017. [DOI: 10.1016/j.pdpdt.2017.01.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Manzano R, Aoki Y, Lee Y, Dafinca R, Aoki M, Douglas A, Varela M, Sathyaprakash C, Scaber J, Barbagallo P, Vader P, Mäger I, Ezzat K, Turner M, Ito N, Gasco S, Ohbayashi N, El Andaloussi S, Taked S, Fukuda M, Talbot K, Wood M. C9ORF72 and RAB7L1 regulate vesicle traffi cking in Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30312-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kohagura J, Yoshikawa M, Wang X, Kuwahara D, Ito N, Nagayama Y, Shima Y, Nojiri K, Sakamoto M, Nakashima Y, Mase A. A 60-GHz interferometer with a local oscillator integrated antenna array for divertor simulation experiments on GAMMA 10/PDX. Rev Sci Instrum 2016; 87:11E127. [PMID: 27910479 DOI: 10.1063/1.4961292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In conventional multichannel/imaging microwave diagnostics of interferometry, reflectometry, and electron cyclotron emission measurements, a local oscillator (LO) signal is commonly supplied to a receiver array via irradiation using LO optics. In this work, we present a 60-GHz interferometer with a new eight-channel receiver array, called a local oscillator integrated antenna array (LIA). An outstanding feature of LIA is that it incorporates a frequency quadrupler integrated circuit for LO supply to each channel. This enables simple and uniform LO supply to the receiver array using only a 15-GHz LO source and a coaxial cable transmission line instead of using an expensive 60-GHz source, LO optics, and a waveguide transmission line. The new interferometer system is first applied to measure electron line-averaged density inside the divertor simulation experimental module (D-module) on GAMMA 10/PDX tandem mirror device.
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Affiliation(s)
- J Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - X Wang
- Saitama University, Saitama 338-8570, Japan
| | - D Kuwahara
- Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - N Ito
- National Institute of Technology, Ube College, Ube, Yamaguchi 755-8555, Japan
| | - Y Nagayama
- National Institute of Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y Shima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K Nojiri
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - A Mase
- Kyushu University, Kasuga, Fukuoka 816-8580, Japan
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Muroi M, Muroi Y, Ito N, Rice N, Suzuki T. Effects of protease inhibitors on LPS-mediated activation of a mouse macrophage cell line (J774). ACTA ACUST UNITED AC 2016. [DOI: 10.1177/096805199500200504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pretreatment (1 h) of a mouse macrophage-like cell line, J774, with the protease inhibitor, phenylalanine-chloromethyl ketone (PCK) or its structural analogue, tosylphenylalanine chloromethyl ketone (TPCK) was found to cause substantial inhibition of LPS-triggered activation of NF-κB. Pretreatment of cells with other types of protease inhibitors or their various structural analogues had no effect. PCK or TPCK appeared to exert its inhibitory effect by: (i) partially preventing LPS-triggered degradation of IκBα protein; (ii) preventing LPS-triggered nuclear translocation of NF-κB proteins (p50, RelA and Rel); and (iii) inhibiting the DNA-binding activities of NF-κB proteins. Pretreatment of cells with PCK or TPCK also resulted in the total or partial inhibition of LPS activatable (AP-1 or CREB) or constitutively-existing (Oct-1) transcription factors, but not of another constitutively-expressed transcription factor (SP-1). Pretreatment of J774 cells with PCK was found to substantially suppress LPS-induced expression of mRNAs specific for cytokine genes (TNFα, IL-1α and β, and IL-6), inducible nitric oxide synthase (iNOS) gene and IκBα gene, but not NF-κB1 p105 gene or β-actin gene. Furthermore, PCK pretreatment inhibited, in a dose-dependent manner, LPS-triggered production of nitric oxide production and tumoricidal activity.
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Affiliation(s)
- M. Muroi
- Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City, Kansas, Laboratory of Molecular Virology and Carcinogenesis, ABL-Basic Research Program, NCI-Frederick Cancer Research and Development Center, Frederick, Maryland, USA
| | - Y. Muroi
- Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City, Kansas, Laboratory of Molecular Virology and Carcinogenesis, ABL-Basic Research Program, NCI-Frederick Cancer Research and Development Center, Frederick, Maryland, USA
| | - N. Ito
- Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City, Kansas, Laboratory of Molecular Virology and Carcinogenesis, ABL-Basic Research Program, NCI-Frederick Cancer Research and Development Center, Frederick, Maryland, USA
| | - N.R. Rice
- Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City, Kansas, Laboratory of Molecular Virology and Carcinogenesis, ABL-Basic Research Program, NCI-Frederick Cancer Research and Development Center, Frederick, Maryland, USA
| | - T. Suzuki
- Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City, Kansas, Laboratory of Molecular Virology and Carcinogenesis, ABL-Basic Research Program, NCI-Frederick Cancer Research and Development Center, Frederick, Maryland, USA
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Kuroda K, Osaki T, Yamashita M, Murahata Y, Azuma K, Tsuka T, Ito N, Imagawa T, Okamoto Y. Migration of a shotgun pellet into the L7-S1 intervertebral foramen of a hunting dog. J Small Anim Pract 2016; 57:575. [PMID: 27485416 DOI: 10.1111/jsap.12542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 05/14/2016] [Accepted: 05/23/2016] [Indexed: 11/29/2022]
Affiliation(s)
- K Kuroda
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - T Osaki
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - M Yamashita
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Y Murahata
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - K Azuma
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - T Tsuka
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - N Ito
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - T Imagawa
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Y Okamoto
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
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50
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Osaki T, Yokoe I, Ogura S, Takahashi K, Murakami K, Inoue K, Ishizuka M, Tanaka T, Li L, Sugiyama A, Azuma K, Murahata Y, Tsuka T, Ito N, Imagawa T, Okamoto Y. Photodynamic detection of canine mammary gland tumours after oral administration of 5-aminolevulinic acid. Vet Comp Oncol 2016; 15:731-739. [DOI: 10.1111/vco.12213] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 10/17/2015] [Accepted: 12/20/2015] [Indexed: 01/08/2023]
Affiliation(s)
- T. Osaki
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
| | - I. Yokoe
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
| | - S. Ogura
- Department of Bioengineering; Tokyo Institute of Technology; Yokohama Japan
| | | | | | - K Inoue
- SBI Pharmaceuticals Co., Ltd.; Tokyo Japan
| | | | - T. Tanaka
- SBI Pharmaceuticals Co., Ltd.; Tokyo Japan
| | - L. Li
- Department of Bio- and Material Photonics; Chitose Institute of Science and Technology; Chitose Japan
| | - A. Sugiyama
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
| | - K. Azuma
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
| | - Y. Murahata
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
| | - T. Tsuka
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
| | - N. Ito
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
| | - T. Imagawa
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
| | - Y. Okamoto
- Joint Department of Veterinary Clinical Medicine, Faculty of Agriculture; Tottori University; Tottori Japan
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