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Fukumoto T, Yamamoto K, Katsura M, Katsuragi H. Energy dissipation of a sphere rolling up a granular slope: Slip and deformation of the granular surface. Phys Rev E 2024; 109:014903. [PMID: 38366452 DOI: 10.1103/physreve.109.014903] [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: 05/15/2023] [Accepted: 12/06/2023] [Indexed: 02/18/2024]
Abstract
We experimentally investigate the dynamics of a sphere rolling up a granular slope. During the rolling-up motion, the sphere experiences slipping and penetration (groove formation) on the surface of the granular layer. The former relates to the stuck motion of the rolling sphere, and the latter causes energy dissipation due to the deformation of the granular surface. To characterize these phenomena, we measured the motion of a sphere rolling up a granular slope of angle α. The initial velocity v_{0}, initial angular velocity ω_{0}, angle of slope α, and density of the sphere ρ_{s} were varied. As a result, the penetration depth can be scaled solely by the density ratio between the sphere and granular layer. By considering the rotational equation of motion, we estimate the friction due to the slips. Besides, by considering energy conservation, we define and estimate the friction due to groove formation. Moreover, the translational friction is proportional to the penetration depth. Using these results, we can quantitatively predict the sphere's motion including stuck behavior.
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Affiliation(s)
- T Fukumoto
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Japan
| | - K Yamamoto
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Japan
| | - M Katsura
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Japan
| | - H Katsuragi
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Japan
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2
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Nishimura K, Asaoka M, Sakamaki Y, Fukumoto T, Tanaka D, Kobayashi S, Takano-Shimizu-Kouno T. Primordial Germ Cell Cryopreservation and Revival of Drosophila Strains. J Vis Exp 2023. [PMID: 38108393 DOI: 10.3791/65985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023] Open
Abstract
Drosophila strains must be maintained by the frequent transfer of adult flies to new vials. This carries a danger of mutational deterioration and phenotypic changes. Development of an alternative method for long-term preservation without such changes is therefore imperative. Despite previous successful attempts, cryopreservation of Drosophila embryos is still not of practical use because of low reproducibility. Here, we describe a protocol for primordial germ cell (PGC) cryopreservation and strain revival via transplantation of cryopreserved PGCs into agametic Drosophila melanogaster (D. melanogaster) host embryos. PGCs are highly permeable to cryoprotective agents (CPAs), and developmental and morphological variation among strains is less problematic than in embryo cryopreservation. In this method, PGCs are collected from approximately 30 donor embryos, loaded into a needle after CPA treatment, and then cryopreserved in liquid nitrogen. To produce donor-derived gametes, the cryopreserved PGCs in a needle are thawed and then deposited into approximately 15 agametic host embryos. A frequency of at least 15% fertile flies was achieved with this protocol, and the number of progeny per fertile couple was always more than enough to revive the original strain (the average progeny number being 77.2 ± 7.1), indicating the ability of cryopreserved PGCs to become germline stem cells. The average number of fertile flies per needle was 1.1 ± 0.2, and 9 out of 26 needles produced two or more fertile progeny. It was found that 11 needles are enough to produce 6 or more progeny, in which at least one female and one male are likely included. The agametic host makes it possible to revive the strain quickly by simply crossing newly emerged female and male flies. In addition, PGCs have the potential to be used in genetic engineering applications, such as genome editing.
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Affiliation(s)
- Kaori Nishimura
- KYOTO Drosophila Stock Center, Kyoto Institute of Technology
| | - Miho Asaoka
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba
| | - Yurina Sakamaki
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba
| | - Tatsuya Fukumoto
- Research Center of Genetic Resources, National Agriculture and Food Research Organization; Shizuoka Prefectural Ogasa High School
| | - Daisuke Tanaka
- Research Center of Genetic Resources, National Agriculture and Food Research Organization;
| | - Satoru Kobayashi
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba;
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3
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Iwasaki S, Sato R, Kagami K, Akizawa K, Hayasaka K, Fukumoto T, Taki K, Niinuma Y, Yamada T, Oyamada R, Watanabe T, Nakakubo S, Watanabe C, Teshima T, Ishiguro N. Breaking away from an endemic state of multidrug-resistant Pseudomonas aeruginosa by daily sink disinfection. Antimicrob Steward Healthc Epidemiol 2023; 3:e209. [PMID: 38156227 PMCID: PMC10753494 DOI: 10.1017/ash.2023.484] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/28/2023] [Accepted: 10/03/2023] [Indexed: 12/30/2023]
Abstract
The detection rate of multidrug-resistant Pseudomonas aeruginosa in patients admitted to 2 wards and the intensive care unit decreased from 20.3% (129 of 636 isolates) to 4.2% (37 of 889 isolates) after the start of disinfection of hand washing sinks using alkyl diaminoethylglycine hydrochloride.
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Affiliation(s)
- Sumio Iwasaki
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Rikako Sato
- Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Keisuke Kagami
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Kouji Akizawa
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Kasumi Hayasaka
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Tatsuya Fukumoto
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Keisuke Taki
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Yusuke Niinuma
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Takehiro Yamada
- Department of Pharmacotherapy, Hokkaido University of Science, Sapporo, Hokkaido, Japan
| | - Reiko Oyamada
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Tsubasa Watanabe
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Sho Nakakubo
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Chiaki Watanabe
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Takanori Teshima
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Hematology, Hokkaido University Faculty of Medicine, Sapporo, Hokkaido, Japan
| | - Nobuhisa Ishiguro
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
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4
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Kagami K, Oyamada R, Watanabe T, Nakakubo S, Hayashi T, Iwasaki S, Fukumoto T, Usami T, Hayasaka K, Fujisawa S, Watanabe C, Nishida M, Teshima T, Niinuma Y, Yokota I, Takekuma Y, Sugawara M, Ishiguro N. Factors associated with household transmission of SARS-CoV-2 omicron variant to health care workers: A retrospective cohort study. Int J Nurs Pract 2023; 29:e13195. [PMID: 37621085 DOI: 10.1111/ijn.13195] [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: 03/21/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 08/26/2023]
Abstract
AIM The aim of this study was to determine the risk factors for household transmission of the omicron variant of SARS-CoV-2. BACKGROUND The household infection rate has been reported to be higher for the omicron variant than for non-omicron variants of SARS-CoV-2. Determination of the risk factors for household transmission of the omicron variant is therefore important. DESIGN A Retrospective Cohort Study was conducted. METHODS When family members of health care workers (HCWs) were found to be infected with SARS-CoV-2, the HCWs had to receive two nucleic acid amplification tests for SARS-CoV-2: immediately after and 5 to 10 days after the onset of COVID-19 in the family members. Risk factors of household transmission were analysed by comparing cases (HCWs infected with SARS-CoV-2) and controls (HCWs not infected with SARS-CoV-2) using multivariable analysis. RESULTS Unvaccinated status (OR: 3.97), age of index cases (≤6 years) (OR: 1.94) and staying at home with index cases (OR: 10.18) were risk factors for household transmission. CONCLUSION If there is a strong desire to avoid household infection, family members infected with SARS-CoV-2 should live separately during the period of viral shedding.
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Affiliation(s)
- Keisuke Kagami
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Reiko Oyamada
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Tsubasa Watanabe
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Sho Nakakubo
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takahiro Hayashi
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Sumio Iwasaki
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Tatsuya Fukumoto
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Takayuki Usami
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Kasumi Hayasaka
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Shinichi Fujisawa
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Chiaki Watanabe
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Mutsumi Nishida
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Takanori Teshima
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Hematology, Hokkaido University Faculty of Medicine, Sapporo, Hokkaido, Japan
| | - Yusuke Niinuma
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Isao Yokota
- Department of Biostatistics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Yoh Takekuma
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Mitsuru Sugawara
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Laboratory of Pharmacokinetics, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Nobuhisa Ishiguro
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
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5
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Hanada K, Osaki Y, Fujita K, Fukumoto T, Fukushima K, Kito H, Izumi Y. Segmental Zoster Paresis Accompanied by Horner's Syndrome. Intern Med 2023; 62:2743-2746. [PMID: 37722924 PMCID: PMC10569921 DOI: 10.2169/internalmedicine.0578-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 12/27/2022] [Indexed: 09/20/2023] Open
Abstract
We herein report a 90-year-old immunocompromised woman who developed right upper limb weakness and right ptosis with a miotic pupil 1 week after oral therapy for zoster on the right T2 dermatome. The right pupil was dilated with instillation of 1% apraclonidine, indicating Horner's syndrome. The patient was treated with intravenous acyclovir and methylprednisolone. Focal weakness related to zoster, generally known as segmental zoster paresis, improved over five months, but Horner's syndrome remained. We suggest that aggressive intravenous treatment should be considered for rare cases of zoster that occur with a combination of these two neurological conditions.
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Affiliation(s)
- Kenta Hanada
- Naka Municipal Kaminaka Hospital, Japan
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Yusuke Osaki
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Koji Fujita
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Tatsuya Fukumoto
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Koji Fukushima
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | | | - Yuishin Izumi
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
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6
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Kagami K, Ishiguro N, Iwasaki S, Taki K, Fukumoto T, Hayasaka K, Oyamada R, Watanabe T, Nakakubo S, Niinuma Y, Sugawara M, Takekuma Y. Correlation between antibiotic use and resistance of gram-negative bacteria at a university hospital in Japan from 2013 to 2021: a study using the Japan Surveillance for Infection Prevention and Healthcare Epidemiology system. Eur J Hosp Pharm 2023:ejhpharm-2023-003797. [PMID: 37438092 DOI: 10.1136/ejhpharm-2023-003797] [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: 04/06/2023] [Accepted: 06/27/2023] [Indexed: 07/14/2023] Open
Abstract
OBJECTIVES The Japan Surveillance for Infection Prevention and Healthcare Epidemiology (J-SIPHE) system aggregates information related to antimicrobial resistance (AMR) measures. We aimed to investigate the correlation between antibiotic use and AMR at a university hospital from 2013 to 2021 in a time series analysis using the J-SIPHE system. We also studied this correlation in each ward (inter-ward analysis). METHODS Data on antibiotic use and resistance rates were collected from the J-SIPHE system, except for the resistance rate in each ward, which was calculated from the source data prepared for this system. RESULTS Piperacillin/tazobactam use was positively correlated with piperacillin/tazobactam resistance in Escherichia coli and Klebsiella pneumoniae in the inter-ward analysis, and in Pseudomonas aeruginosa in both analyses. Carbapenem use was positively correlated with meropenem resistance in Enterobacter cloacae in the time series analysis and in P. aeruginosa in both analyses, and imipenem/cilastatin resistance in P. aeruginosa in inter-ward analysis. Quinolone use was positively correlated with levofloxacin resistance in E. coli in both analyses, and in K. pneumoniae in inter-ward analysis. CONCLUSIONS This is the first study to investigate the correlation between antibiotic use and AMR at a single hospital in time series and inter-ward analyses using the J-SIPHE system and data prepared for this system, suggesting that this system may be useful for promoting AMR measures.
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Affiliation(s)
- Keisuke Kagami
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
| | - Nobuhisa Ishiguro
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
| | - Sumio Iwasaki
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Keisuke Taki
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Tatsuya Fukumoto
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Kasumi Hayasaka
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Reiko Oyamada
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
| | - Tsubasa Watanabe
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
| | - Sho Nakakubo
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
- Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Yusuke Niinuma
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
- Department of Infection Control and Prevention, Hokkaido University Hospital, Sapporo, Japan
| | - Mitsuru Sugawara
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
- Laboratory of Pharmacokinetics, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Yoh Takekuma
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
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7
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Kagami K, Ishiguro N, Iwasaki S, Usami T, Fukumoto T, Hayasaka K, Oyamada R, Watanabe T, Nakakubo S, Niinuma Y, Hagino T, Abe Y, Fujimoto I, Maekawa H, Fujibayashi R, Fuke S, Asahi K, Ota S, Nagakura T, Okubo T, Asanuma H, Ito T, Okano S, Komatsu E, Sasaki K, Hashimoto K, Washiya K, Kato Y, Kusumi K, Asai Y, Saito Y, Sakai Y, Sakurada M, Sakimoto Y, Ichikawa Y, Kinebuchi T, Kondo D, Kanno S, Kobayashi M, Hirabayashi K, Saitou S, Saito K, Ebina Y, Koshizaki Y, Chiba M, Yasuda A, Sato T, Togashi A, Abe T, Fujita T, Umehara K, Amishima M, Murakami N, Yagi T, Fujimoto S, Tajima T, Sugawara M, Takekuma Y. Correlation between antibiotic use and antibiotic resistance: A multicenter study using the Japan Surveillance for Infection Prevention and Healthcare Epidemiology (J-SIPHE) system in Hokkaido, Japan. Am J Infect Control 2023; 51:163-171. [PMID: 35671846 DOI: 10.1016/j.ajic.2022.05.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND The Japan Surveillance for Infection Prevention and Healthcare Epidemiology (J-SIPHE) system aggregates information related to antimicrobial resistance (AMR) measures in participating medical institutions nationwide and is intended to be used for promotion of AMR measures in participating facilities and their communities. This multicenter study aimed to determine the usefulness of the J-SIPHE system for evaluating the correlation between antibiotic use and antibiotic resistance in Hokkaido, Japan. METHODS Data on antibiotic use and detection rate of major resistant Gram-negative bacteria at 19 hospitals in 2020 were collected from the J-SIPHE system, and data correlations were analyzed using JMP Pro. RESULTS The detection rate of carbapenem-resistant Pseudomonas aeruginosa was significantly positively correlated with carbapenem use (Spearman's ρ = 0.551; P = .015). There were significant positive correlations between the detection rate of fluoroquinolone-resistant Escherichia coli and the use of piperacillin/tazobactam, carbapenems, and quinolones [ρ = 0.518 (P = .023), ρ = 0.76 (P < .001), and ρ = 0.502 (P = .029), respectively]. CONCLUSIONS This is the first multicenter study to investigate the correlation between antibiotic use and antibiotic resistance using the J-SIPHE system. The results suggest that using this system may be beneficial for promoting AMR measures.
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Affiliation(s)
- Keisuke Kagami
- Department of Pharmacy, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan; Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan.
| | - Nobuhisa Ishiguro
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Sumio Iwasaki
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Takayuki Usami
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Tatsuya Fukumoto
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Kasumi Hayasaka
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Reiko Oyamada
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Tsubasa Watanabe
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Sho Nakakubo
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan; Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Kita-ku, Sapporo, Hokkaido, Japan
| | - Yusuke Niinuma
- Department of Pharmacy, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan; Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Takashi Hagino
- Infection Control Room, NTT Medical Center Sapporo, Chuo-ku, Sapporo, Hokkaido, Japan
| | - Yoshifumi Abe
- Infection Control Room, NTT Medical Center Sapporo, Chuo-ku, Sapporo, Hokkaido, Japan
| | - Ikuya Fujimoto
- Department of Pharmacy, Kitasapporo Hospital, Kita-ku, Sapporo, Hokkaido, Japan
| | - Hideki Maekawa
- Department of Pharmacy, Hokkaido Gastroenterology Hospital, Higashi-ku, Sapporo, Hokkaido, Japan
| | - Ryo Fujibayashi
- Department of Pharmacy, Hokkaido Gastroenterology Hospital, Higashi-ku, Sapporo, Hokkaido, Japan
| | - Satoshi Fuke
- Department of Respiratory Medicine, KKR Sapporo Medical Center, Toyohira-ku, Sapporo, Hokkaido, Japan; Department of Infection Control and Prevention, KKR Sapporo Medical Center, Toyohira-ku, Sapporo, Hokkaido, Japan
| | - Kuniko Asahi
- Department of Infection Control and Prevention, KKR Sapporo Medical Center, Toyohira-ku, Sapporo, Hokkaido, Japan; Department of Laboratory Medicine, KKR Sapporo Medical Center, Toyohira-ku, Sapporo, Hokkaido, Japan
| | - Shuichi Ota
- Department of Hematology, Sapporo Hokuyu Hospital, Shiroishi-ku, Sapporo, Hokkaido, Japan; Department of Infection Control and Prevention, Sapporo Hokuyu Hospital, Shiroishi-ku, Sapporo, Hokkaido, Japan
| | - Tatsuya Nagakura
- Department of Infection Control and Prevention, Sapporo Hokuyu Hospital, Shiroishi-ku, Sapporo, Hokkaido, Japan
| | - Toshinari Okubo
- Department of Pharmacy, IMS Sapporo Internal Medicine Rehabilitation Hospital, Teine-ku, Sapporo, Hokkaido, Japan
| | - Hideomi Asanuma
- Department of Neonatology, Hokkaido Medical Center for Child Health and Rehabilitation, Teine-ku, Sapporo, Hokkaido, Japan
| | - Toshihiro Ito
- Department of Cardiology, Sapporo Teishinkai Hospital, Higashi-ku, Sapporo, Hokkaido, Japan
| | - Sho Okano
- Department of Pharmacy, Sapporo Teishinkai Hospital, Higashi-ku, Sapporo, Hokkaido, Japan
| | - Erika Komatsu
- Department of Pharmacy, Ebetsu City Hospital, Ebetsu, Hokkaido, Japan
| | - Kota Sasaki
- Department of Clinical Laboratory, Ebetsu City Hospital, Ebetsu, Hokkaido, Japan
| | - Kei Hashimoto
- Department of Pharmacy, Hakodate Goryoukaku Hospital, Hakodate, Hokkaido, Japan
| | - Kazutoshi Washiya
- Department of Pharmacy, Hakodate Goryoukaku Hospital, Hakodate, Hokkaido, Japan
| | - Yumiko Kato
- Department of Infection Control and Prevention, Hakodate Central General Hospital, Hakodate, Hokkaido, Japan
| | - Katsunori Kusumi
- Department of Pharmacy, Hakodate Central General Hospital, Hakodate, Hokkaido, Japan
| | - Yasufumi Asai
- Department of Cardiology, Hakodate Shintoshi Hospital, Hakodate, Hokkaido, Japan
| | - Yuichi Saito
- Department of Pharmacy, Hakodate Shintoshi Hospital, Hakodate, Hokkaido, Japan
| | - Yoshiyuki Sakai
- Department of Pediatrics, Hakodate Municipal Hospital, Hakodate, Hokkaido, Japan
| | - Minoru Sakurada
- Department of Pharmacy, Hakodate Municipal Hospital, Hakodate, Hokkaido, Japan
| | - Yuji Sakimoto
- Department of Pharmacy, Yakumo General Hospital, Yakumo Town, Futami-gun, Hokkaido, Japan; Infection Control Room, Yakumo General Hospital, Yakumo Town, Futami-gun, Hokkaido, Japan
| | - Yukari Ichikawa
- Infection Control Management, Asahikawa Red Cross Hospital, Asahikawa, Hokkaido, Japan
| | - Takahiro Kinebuchi
- Department of Laboratory Medicine, Social Welfare Corporation Hokkaido Social Work Association Furano Hospital, Furano, Hokkaido, Japan
| | - Dai Kondo
- Department of Pharmacy, Social Welfare Corporation Hokkaido Social Work Association Furano Hospital, Furano, Hokkaido, Japan
| | - Syuhei Kanno
- Department of Pharmacy, Oji General Hospital, Tomakomai, Hokkaido, Japan; Infection Control Room, Oji General Hospital, Tomakomai, Hokkaido Japan
| | - Minoru Kobayashi
- Infection Control Room, Oji General Hospital, Tomakomai, Hokkaido Japan
| | - Kagami Hirabayashi
- Department of Cardiologists, Tomakomai City Hospital, Tomakomai, Hokkaido, Japan; Department of Infection Control and Prevention, Tomakomai City Hospital, Tomakomai, Hokkaido, Japan
| | - Shinako Saitou
- Department of Infection Control and Prevention, Tomakomai City Hospital, Tomakomai, Hokkaido, Japan; Department of Infection Prevention and Control Certified Nurse, Tomakomai City Hospital, Tomakomai, Hokkaido, Japan
| | - Katsuhiko Saito
- Department of Pharmacy, Nemuro City Hospital, Nemuro, Hokkaido, Japan
| | - Yuuki Ebina
- Department of Pharmacy, Obihiro Kosei General Hospital, Obihiro, Hokkaido, Japan
| | - Yuusuke Koshizaki
- Department of Clinical Laboratory Technology, Obihiro Kosei General Hospital, Obihiro, Hokkaido, Japan
| | - Makoto Chiba
- Department of Pharmacy, Kitami Red Cross Hospital, Kitami, Hokkaido, Japan
| | - Atsushi Yasuda
- Department of Clinical Laboratory, Kitami Red Cross Hospital, Kitami, Hokkaido, Japan
| | - Toshiya Sato
- Department of Pediatrics, Iwamizawa Municipal General Hospital, Iwamizawa, Hokkaido, Japan; Department of Infection Prevention Office, Iwamizawa Municipal General Hospital, Iwamizawa, Hokkaido, Japan
| | - Atsuo Togashi
- Department of Pediatrics, Iwamizawa Municipal General Hospital, Iwamizawa, Hokkaido, Japan; Department of Infection Prevention Office, Iwamizawa Municipal General Hospital, Iwamizawa, Hokkaido, Japan
| | - Takashi Abe
- Department of Laboratory Medicine, Takikawa Municipal Hospital, Takikawa, Hokkaido, Japan
| | - Takahiro Fujita
- Department of Infectious Diseases, National Hospital Organization Hokkaido Cancer Center, Shiroishi-ku, Sapporo, Hokkaido, Japan
| | - Kengo Umehara
- Department of Pharmacy, National Hospital Organization Hokkaido Cancer Center, Shiroishi-ku, Sapporo, Hokkaido, Japan
| | - Masaru Amishima
- Office for Infection Control and Prevention, NHO Hokkaido Medical Center, Nishi-ku, Sapporo, Hokkaido, Japan
| | - Nobuo Murakami
- Center for Regional Medicine, Gifu University School of Medicine, Yanagido, Gifu, Japan; Gifu General Healthcheckup Centre, Hikie, Gifu, Japan
| | - Tetsuya Yagi
- Department of Infectious Diseases, Nagoya University Hospital, Showa-ku, Nagoya, Japan
| | - Shuhei Fujimoto
- Department of Bacteriology and Bacterial Infection, Division of Host Defense Mechanism, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Taichi Tajima
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan
| | - Mitsuru Sugawara
- Department of Pharmacy, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan; Laboratory of Pharmacokinetics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-ku, Sapporo, Hokkaido, Japan
| | - Yoh Takekuma
- Department of Pharmacy, Hokkaido University Hospital, Kita-ku, Sapporo, Hokkaido, Japan
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8
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Watanabe R, Kono R, Arai O, Onishi T, Kakuda T, Noda T, Nishimura K, Fukumoto T, Miura N, Kurata M, Miyauchi Y, Kitazawa R, Haffner M, Kikugawa T, Nelson P, Saika T. Detection of intraductal carcinoma of the prostate (IDCP) cases focusing on high-grade prostatic intraepithelial neoplasia (PIN) findings regarding invasive carcinoma of the prostate. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01268-x] [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: 02/12/2023]
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9
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Kagami K, Ishiguro N, Yamada T, Niinuma Y, Iwasaki S, Taki K, Fukumoto T, Hayasaka K, Nishida M, Sugita J, Teshima T, Sugawara M, Takekuma Y. Clinical outcomes of intervention for carbapenems and anti-methicillin-resistant Staphylococcus aureus antibiotics by an antimicrobial stewardship team. Am J Infect Control 2021; 49:1493-1498. [PMID: 34416316 DOI: 10.1016/j.ajic.2021.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/12/2021] [Accepted: 08/12/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND There are no reports on the effects of interventions, such as discontinuation and change and/or de-escalation of carbapenems and anti-methicillin-resistant Staphylococcus aureus (MRSA) antibiotics by an antimicrobial stewardship team focusing on detailed patient outcomes. This study aimed to evaluate these effects. METHODS This retrospective cohort study was conducted at a tertiary care hospital from December 2018 to November 2019. RESULTS Favorable clinical responses were obtained in 165 of 184 cases (89.7%) in the intervention-accepted group, higher than those in the not accepted group (14/19 cases, 73.7%; P = .056). All-cause 30 day mortality was lower in the accepted group than in the not accepted group (1.1% and 10.5%, respectively; P = .045). The microbiological outcomes were similar between the two groups. Duration of carbapenem and anti-MRSA antibiotic use in the accepted group was significantly lower than that in the not accepted group (median [interquartile range]: 8 days [5-13] versus 14 days [8-15], respectively, P = .026 for carbapenem; 10 days [5.3-15] vs 15.5 days [13.8-45.3], respectively, P = .014 for anti-MRSA antibiotic). CONCLUSIONS This is the first study to investigate the effects of interventions such as discontinuation and change and/ or de-escalation of antibiotics on detailed outcomes. Our intervention could reduce the duration of carbapenem and anti-MRSA antibiotic use without worsening clinical and microbiological outcomes.
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10
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Miura N, Okaichi T, Okamoto S, Mouri S, Sogabe H, Arai A, Maeda T, Watanabe R, Noda T, Nishimura K, Fukumoto T, Miyauchi Y, Kikugawa T, Saika T. Extended robot-assisted laparoscopic prostatectomy and extended pelvic lymph node dissection as a monotherapy for very high-risk prostate cancer patients. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03127-x] [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] Open
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11
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Ohata M, Fukumoto T, Hashimoto T, Takemori C, Jimbo H, Nagai H, Oka M, Nishigori C. Koebner phenomenon seen in a case of drug-induced granular C3 dermatosis. Clin Exp Dermatol 2021; 47:609-611. [PMID: 34642966 DOI: 10.1111/ced.14977] [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] [Accepted: 10/11/2021] [Indexed: 11/29/2022]
Affiliation(s)
- M Ohata
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Fukumoto
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Hashimoto
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - C Takemori
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - H Jimbo
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - H Nagai
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - M Oka
- Department of Dermatology, Kita-Harima Medical Center, Ono, Japan
| | - C Nishigori
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
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12
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Asaoka M, Sakamaki Y, Fukumoto T, Nishimura K, Tomaru M, Takano-Shimizu T, Tanaka D, Kobayashi S. Offspring production from cryopreserved primordial germ cells in Drosophila. Commun Biol 2021; 4:1159. [PMID: 34621004 PMCID: PMC8497528 DOI: 10.1038/s42003-021-02692-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 09/17/2021] [Indexed: 11/29/2022] Open
Abstract
There is an urgent need to cryopreserve Drosophila stocks that have been maintained as living cultures for a long time. Long-term culture increases the risk of accidental loss and of unwanted genetic alteration. Here, we report that cryopreserved primordial germ cells (PGCs) can produce F1 progeny when transplanted into hosts. The cryopreserved donor PGCs could form germline stem cells in host gonads and contributed to continuous offspring production. Furthermore, the ability to produce offspring did not appear to vary with either differences between donor strains or cryopreservation duration. Therefore, we propose that our cryopreservation method is feasible for long-term storage of various Drosophila strains. These results underscore the potential usefulness of our cryopreservation method for backing up living stocks to avoid either accidental loss or genetic alteration. Asaoka, Sakamaki, Fukumoto et al. present a more viable method of long-term storage of Drosophila fly strains by cryopreservation of primordial germ cells (PGCs) without any drop in viability. The authors show that PGCs from stage 5 embryos can be transplanted into embryos and properly developed into germline stem cells to produce offspring of both sexes after being revived from storage in liquid nitrogen.
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Affiliation(s)
- Miho Asaoka
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan.
| | - Yurina Sakamaki
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan
| | - Tatsuya Fukumoto
- Research Center of Genetic Resources, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8602, Japan
| | - Kaori Nishimura
- Advanced Insect Research Promotion Center, Kyoto Institute of Technology, Kyoto, 616-8354, Japan
| | - Masatoshi Tomaru
- Advanced Insect Research Promotion Center, Kyoto Institute of Technology, Kyoto, 616-8354, Japan
| | - Toshiyuki Takano-Shimizu
- Advanced Insect Research Promotion Center, Kyoto Institute of Technology, Kyoto, 616-8354, Japan.
| | - Daisuke Tanaka
- Research Center of Genetic Resources, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8602, Japan.
| | - Satoru Kobayashi
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan. .,Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan.
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13
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Fukumoto T, Hristova D, Hua X, Jimbo H, Takemori C, Nishigori C, Wei Z, Somasundaram R, Fukunaga-Kalabis M, Herlyn M. 295 The role of NUMB in melanoma. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.301] [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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14
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Fukumoto T, Sakashita Y, Katada F, Takeuchi R, Miyamoto R, Izumi Y, Sato S, Shibayama H, Takahashi K, Suzuki T, Nakamichi K, Murayama S, Fukutake T. "Burnt-out" progressive multifocal leukoencephalopathy in idiopathic CD4 + lymphocytopenia. Neuropathology 2021; 41:484-488. [PMID: 34595780 DOI: 10.1111/neup.12773] [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: 05/01/2021] [Revised: 07/19/2021] [Accepted: 07/28/2021] [Indexed: 11/29/2022]
Abstract
Progressive multifocal leukoencephalopathy (PML) is a fatal disease caused by John Cunningham virus (JCV) infection; however, a growing number of PML patients now survive longer and achieve remission, largely due to the advent of combination antiretroviral therapy. Several reports have suggested that the pathology in such patients presents only chronic demyelination without characteristic cellular changes, being referred to as "burnt-out" PML. On the other hand, our knowledge of "burnt-out" PML is still substantially limited, especially in patients with non-human immunodeficiency virus infection. Here, we report a case of PML associated with idiopathic CD4+ lymphocytopenia (ICL) who presented with spontaneous remission and survived for 11 years after onset. Notably, postmortem examination revealed surprisingly broad "burnt-out" lesions lacking the classic histopathological findings. However, pathogenic JCV-specific DNA sequences was still present in the autopsied brain tissue. This case suggests that complete remission can be achieved with a persistent presence of JCV-specific pathogenic sequences, even after a catastrophic infection. Considering that there have been a few reported cases of PML with ICL with long survival, the long-term survival of our case may share a favorable immunological response that is unique to a subgroup of ICL.
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Affiliation(s)
- Tatsuya Fukumoto
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.,Department of Neurology, Kameda Medical Center, Kamogawa, Japan
| | - Yasuhiro Sakashita
- Department of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Fumiaki Katada
- Department of Neurology, Kameda Medical Center, Kamogawa, Japan
| | - Ryoko Takeuchi
- Department of Neurology, Kameda Medical Center, Kamogawa, Japan
| | - Ryosuke Miyamoto
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yuishin Izumi
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Susumu Sato
- Department of Neurology, Kameda Medical Center, Kamogawa, Japan
| | | | - Kenta Takahashi
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kazuo Nakamichi
- Department of Virology 1, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shigeo Murayama
- Department of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Toshio Fukutake
- Department of Neurology, Kameda Medical Center, Kamogawa, Japan
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15
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Osaki Y, Nodera H, Fukumoto T, Kaji R, Izumi Y. Peripheral nerve dysfunction in a patient with thyrotoxic periodic paralysis: Evidence from an axonal prolonged exercise test. Clin Neurophysiol 2021; 132:1496-1498. [PMID: 34030052 DOI: 10.1016/j.clinph.2021.04.006] [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: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Yusuke Osaki
- Department of Neurology, Tokushima University Hospital, Tokushima, Japan.
| | | | - Tatsuya Fukumoto
- Department of Neurology, Tokushima University Hospital, Tokushima, Japan; Department of Neurology, Utano Hospital, Kyoto, Japan
| | - Ryuji Kaji
- Department of Neurology, Tokushima University Hospital, Tokushima, Japan; Department of Neurology, Utano Hospital, Kyoto, Japan
| | - Yuishin Izumi
- Department of Neurology, Tokushima University Hospital, Tokushima, Japan
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16
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Muto K, Miyamoto R, Terasawa Y, Shimatani Y, Hara K, Kakimoto T, Fukumoto T, Osaki Y, Fujita K, Harada M, Uehara H, Takagi Y, Izumi Y. A novel COL4A1 variant associated with recurrent epistaxis and glioblastoma. Hum Genome Var 2021; 8:18. [PMID: 33990551 PMCID: PMC8121905 DOI: 10.1038/s41439-021-00150-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/04/2021] [Accepted: 04/14/2021] [Indexed: 11/10/2022] Open
Abstract
COL4A1-related disorders are characterized by a higher incidence of cerebral hemorrhage than other hereditary cerebral small vessel diseases. Accumulating data have shown broad phenotypic variations, and extracerebral hemorrhages have been linked to these disorders. Moreover, the coexistence of neural tumors has been described. Here, we report a Japanese family with a novel COL4A1 variant, including a patient with recurrent epistaxis and glioblastoma.
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Affiliation(s)
- Kohei Muto
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Ryosuke Miyamoto
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.
| | - Yuka Terasawa
- Department of Neurology, Brain Attack Center Ota Memorial Hospital, Hiroshima, Japan
| | - Yoshimitsu Shimatani
- Department of Neurology, Tokushima Prefectural Central Hospital, Tokushima, Japan
| | - Keijiro Hara
- Department of Neurosurgery, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Takumi Kakimoto
- Division of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - Tatsuya Fukumoto
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yusuke Osaki
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Koji Fujita
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Masafumi Harada
- Department of Radiology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Hisanori Uehara
- Division of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - Yasushi Takagi
- Department of Neurosurgery, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yuishin Izumi
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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17
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Suratos CT, Takamatsu N, Yamazaki H, Osaki Y, Fukumoto T, Nodera H, Izumi Y. Utility of phrenic nerve ultrasound in amyotrophic lateral sclerosis. Acta Neurol Belg 2021; 121:225-230. [PMID: 33136272 PMCID: PMC7937596 DOI: 10.1007/s13760-020-01531-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/05/2020] [Indexed: 11/02/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder affecting the upper and lower motor neurons causing progressive weakness. It eventually involves the diaphragm which leads to respiratory paralysis and subsequently death. Phrenic nerve (PN) conduction studies and diaphragm ultrasound has been studied and correlated with pulmonary function tests in ALS patients. However, PN ultrasonography has not been employed in ALS. This study aims to sonographically evaluate the morphologic appearance of the PN of ALS patients. Thirty-eight ALS patients and 28 normal controls referred to the neurophysiology laboratory of two institutions were retrospectively included in the study. Baseline demographic and clinical variables such as disease duration, ALS Functional Rating Scale-Revised score, and ALS region of onset were collected. Ultrasound was used to evaluate the PN cross-sectional area (CSA) of ALS and control subjects. The mean PN CSA of ALS patients were 1.08 ± 0.39 mm on the right and 1.02 ± 0.34 mm on the left. The PN CSA of ALS patients were significantly decreased compared to controls (p value < 0.00001). The PN CSA of ALS patients was not correlated to any of the demographic and clinical parameters tested. This study demonstrates that ALS patients have a smaller PN size compared to controls using ultrasonography.
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18
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Kagami K, Ishiguro N, Yamada T, Niinuma Y, Iwasaki S, Taki K, Fukumoto T, Hayasaka K, Oyamada R, Watanabe T, Nishida M, Sugita J, Teshima T, Sugawara M, Takekuma Y. Efficacy and safety of colistin for the treatment of infections caused by multidrug-resistant gram-negative bacilli. J Infect Chemother 2020; 27:473-479. [PMID: 33144146 DOI: 10.1016/j.jiac.2020.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/13/2020] [Accepted: 10/18/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND The efficacy and safety of colistin for the treatment of infections caused by multidrug-resistant gram-negative bacilli have been poorly investigated in Japanese patients. This study was performed to investigate the efficacy and safety of colistin in Japanese patients by analyzing a considerable number of cases. Furthermore, we evaluated the relationship between the plasma concentration and efficacy and safety of colistin in some cases. METHODS A retrospective cohort study was conducted at Hokkaido University Hospital, analyzing patients treated with colistin (colistimethate sodium) during the period from January 2007 to December 2019. RESULTS Overall, 42 cases were enrolled. Favorable clinical response was observed in 25 cases (59.5%), with an all-cause 30-day mortality of 33.3% (14/42 cases). Microbiological eradication was achieved in 18 cases (42.9%). Nephrotoxicity was observed in 20 cases (47.6%) and was mild and reversible in all cases. Plasma trough concentrations of colistin determined in nine patients correlated with changes in serum creatinine concentration (⊿) and creatinine clearance (%). The cutoff value of colistin trough concentration for nephrotoxicity was 2.02 μg/mL. CONCLUSION Our results showed approximately 60% clinical efficacy of colistin therapy against infections caused by multidrug-resistant gram-negative bacilli in the patients. Further studies with larger populations are needed to elucidate the efficacy and safety of colistin in Japanese patients.
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Affiliation(s)
- Keisuke Kagami
- Department of Pharmacy, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Nobuhisa Ishiguro
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Takehiro Yamada
- Department of Pharmacy, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Yusuke Niinuma
- Department of Pharmacy, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Sumio Iwasaki
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Keisuke Taki
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Tatsuya Fukumoto
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Kasumi Hayasaka
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Reiko Oyamada
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Tsubasa Watanabe
- Department of Infection Control and Prevention, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Mutsumi Nishida
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan
| | - Junichi Sugita
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Department of Hematology, Faculty of Medicine, Hokkaido University, Kita-15-jo, Nishi-7-chome, Kita-ku, Sapporo 060-8638, Japan
| | - Takanori Teshima
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Department of Hematology, Faculty of Medicine, Hokkaido University, Kita-15-jo, Nishi-7-chome, Kita-ku, Sapporo 060-8638, Japan
| | - Mitsuru Sugawara
- Department of Pharmacy, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan; Laboratory of Pharmacokinetics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12-jo, Nishi-6-chome, Kita-ku, Sapporo 060-0812, Japan
| | - Yoh Takekuma
- Department of Pharmacy, Hokkaido University Hospital, Kita-14-jo, Nishi-5-chome, Kita-ku, Sapporo 060-8648, Japan.
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Yokomoto-Umakoshi M, Umakoshi H, Ogata M, Fukumoto T, Matsuda Y, Miyazawa T, Sakamoto R, Ogawa Y. Coexistence of osteoporosis and atherosclerosis in pheochromocytoma: new insights into its long-term management. Osteoporos Int 2020; 31:2151-2160. [PMID: 32617610 DOI: 10.1007/s00198-020-05527-5] [Citation(s) in RCA: 2] [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] [Received: 04/07/2020] [Accepted: 06/26/2020] [Indexed: 02/06/2023]
Abstract
UNLABELLED Osteoporosis and atherosclerosis frequently coexist in patients with pheochromocytoma. The presence of osteoporosis may predict that of atherosclerosis and vice versa in patients with PHEO. These findings have implications for the long-term management of the pheochromocytoma and its potential chronic complications. INTRODUCTION Pheochromocytoma (PHEO), a catecholamine-producing tumor, is often found incidentally, and it may be present for years before it is diagnosed. However, long-term exposure to catecholamines excess may induce chronic complications, such as osteoporosis and atherosclerosis. We aimed to evaluate concomitant osteoporosis and atherosclerosis in patients with PHEO. METHODS Fifty-one patients with PHEO and 51 patients with a non-functional adrenal tumor were compared radiographically for the prevalence of vertebral fracture (VF), a typical osteoporotic fracture, and abdominal aortic calcification (AAC). RESULTS In patients with PHEO, the prevalence of AAC was higher in those with VF (58%) than in those without (6%, p < 0.001). AAC was associated with VF after adjusting for age and sex (odds ratio, 1.53; 95% confidence interval, 1.07-2.46; p = 0.003) in patients with PHEO. The degree of catecholamine excess correlated with the presence of VF and AAC (p = 0.007). The prevalence of VF was higher in patients with PHEO (37%) than those with non-functional AT (12%, p = 0.005), but the prevalence of AAC was comparable between the two groups (25% and 19%, p = 0.636). VF and AAC more frequently coexisted in patients with PHEO (22%) than in those with non-functional AT (2%, p = 0.003). CONCLUSION This study represents the first demonstration that osteoporosis and atherosclerosis frequently coexist in patients with PHEO. The presence of osteoporosis may predict that of atherosclerosis and vice versa in patients with PHEO. These findings have implications for the long-term management of the PHEO and its potential chronic complications.
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Affiliation(s)
- M Yokomoto-Umakoshi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Umakoshi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - M Ogata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Fukumoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Matsuda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Miyazawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - R Sakamoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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20
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Taki K, Yokota I, Fukumoto T, Iwasaki S, Fujisawa S, Takahashi M, Negishi S, Hayasaka K, Sato K, Oguri S, Nishida M, Sugita J, Konno S, Saito T, Teshima T. SARS-CoV-2 detection by fluorescence loop-mediated isothermal amplification with and without RNA extraction. J Infect Chemother 2020; 27:410-412. [PMID: 33214073 PMCID: PMC7604111 DOI: 10.1016/j.jiac.2020.10.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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: 09/17/2020] [Revised: 10/24/2020] [Accepted: 10/28/2020] [Indexed: 12/01/2022]
Abstract
Rapid and simple point-of-care detection of SARS-CoV-2 is an urgent need to prevent pandemic. Reverse transcription loop-mediated isothermal amplification (RT-LAMP) can detect SARS-CoV-2 more rapidly than RT-PCR. Saliva is non-invasive specimen suitable for mass-screening, but data comparing utility of nasopharyngeal swab (NPS) and saliva in RT-LAMP test are lacking and it remains unclear whether SARS-CoV-2 could be detected by direct processing of samples without the need for prior RNA extraction saliva. In this study, we compared utility of saliva and NPS samples for the detection of SARS-CoV-2 by a novel RT-fluorescence LAMP (RT-fLAMP). The sensitivity and specificity of the RT-fLAMP with RNA extraction were 97% and 100%, respectively, with equivalent utility of NPS and saliva. However, sensitivity was decreased to 71% and 47% in NPS and saliva samples without RNA extraction, respectively, suggesting that RNA extraction process may be critical for the virus detection by RT-fLAMP.
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Affiliation(s)
- Keisuke Taki
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Isao Yokota
- Department of Biostatistics, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Tatsuya Fukumoto
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Sumio Iwasaki
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Shinichi Fujisawa
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Masayoshi Takahashi
- Molecular Testing Solutions Business Development Department, Canon Medical Systems Corporation, Otawara, Japan
| | - Saeki Negishi
- Molecular Testing Solutions Business Development Department, Canon Medical Systems Corporation, Otawara, Japan
| | - Kasumi Hayasaka
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Kaori Sato
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Satoshi Oguri
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Mutsumi Nishida
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Junichi Sugita
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Satoshi Konno
- Department of Respiratory Medicine, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Tomoya Saito
- Department of Health Crisis Management, National Institute of Public Health, Saitama, Japan
| | - Takanori Teshima
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan; Department of Hematology, Hokkaido University Faculty of Medicine, Sapporo, Japan.
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21
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Yamashita Y, Nagaoka K, Kimura H, Suzuki M, Fukumoto T, Hayasaka K, Kaku N, Morinaga Y, Yanagihara K, Konno S. Pathogenic Effect of Prevotella intermedia on a Mouse Pneumonia Model Due to Methicillin-Resistant Staphylococcus aureus With Up-Regulated α-Hemolysin Expression. Front Microbiol 2020; 11:587235. [PMID: 33117325 PMCID: PMC7575765 DOI: 10.3389/fmicb.2020.587235] [Citation(s) in RCA: 2] [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: 07/25/2020] [Accepted: 09/14/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Methicillin-resistant Staphylococcus aureus (MRSA) is a common causative agent of pneumonia; however, the detailed mechanism underlying severe MRSA pneumonia, including association with oral hygiene or periodontitis, remains poorly characterized. In this study, we examined the pathogenic effect of Prevotella intermedia, a major periodontopathic pathogen, on MRSA pneumonia. Methods: The pathogenic effect of the supernatant of P. intermedia (Pi Sup) was investigated in a murine MRSA pneumonia model, using several clinical strains; whereas the bactericidal activity of polymorphonuclear leukocytes (PMNs) was investigated in vitro. The effect of Pi Sup on messenger RNA (mRNA) expression of the toxin/quorum sensing system (rnaIII) was investigated by quantitative reverse transcription PCR both in vitro and in vivo. Results: Mice infected by hospital-acquired MRSA (HA-MRSA) with Pi Sup exhibited a significantly lower survival rate, higher bacterial loads in the lungs, and higher α-hemolysin (hla) expression in the lungs, than those without Pi Sup. A similar effect of Pi Sup was not observed with MRSA strains producing Panton-Valentine leucocidin (PVL) or toxic shock syndrome toxin (TSST). In vitro, Pi Sup suppressed bactericidal activity of PMNs against the HA-MRSA strain. HA-MRSA was the clinical strain with the highest ability to proliferate in the lungs and was accompanied by time-dependent up-regulation of rnaIII and hla. Conclusions: Our results provide novel evidence that the product of P. intermedia exerts a pathogenic effect on MRSA pneumonia, in particular with a strain exhibiting strong proliferation in the lower airway tract. Moreover, our results indicate that P. intermedia affects MRSA toxin expression via quorum sensing in a strain-dependent fashion, which might be important for understanding the pathogenesis of severe MRSA pneumonia.
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Affiliation(s)
- Yu Yamashita
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kentaro Nagaoka
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroki Kimura
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masaru Suzuki
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tatsuya Fukumoto
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Kasumi Hayasaka
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Norihito Kaku
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yoshitomo Morinaga
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Satoshi Konno
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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22
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Tai Y, Fukumoto T, Oka M, Nishigori C. Frequent handwashing and disinfection: a potential new trigger for aquagenic wrinkling of the palms caused by COVID-19 outbreak. J Eur Acad Dermatol Venereol 2020; 35:e9-e10. [PMID: 32869389 DOI: 10.1111/jdv.16906] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Y Tai
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Fukumoto
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - M Oka
- Department of Dermatology, Kita-Harima Medical Center, Ono City, Japan
| | - C Nishigori
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, Kobe, Japan
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23
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Yamamoto Y, Yamamoto N, Fujita K, Fukumoto T, Murakami N, Mure H, Kanematsu Y, Takagi Y, Izumi Y. Cerebral Venous Thrombosis: An Unexpected Complication with Cerebrospinal Fluid Leaks after a Fall in a Patient with Spinocerebellar Ataxia Type 6. Intern Med 2020; 59:1749-1753. [PMID: 32238726 PMCID: PMC7434543 DOI: 10.2169/internalmedicine.4388-20] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A 65-year-old woman with spinocerebellar ataxia presented with generalized seizures due to subcortical hemorrhaging. Magnetic resonance imaging (MRI) revealed obstruction of the superior sagittal sinus. Despite treatment, she became comatose. MRI newly revealed subdural fluid collection and descent of the brainstem. Her history indicated a recent fall, prompting additional studies, which revealed lumbar fracture and cerebrospinal fluid (CSF) leaks. We performed an epidural blood patch, and her consciousness was fully restored in one month. This is the first report of cerebral venous thrombosis with CSF leaks in the lumbar region due to a fall injury.
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Affiliation(s)
- Yuki Yamamoto
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Nobuaki Yamamoto
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Koji Fujita
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Tatsuya Fukumoto
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Nagahisa Murakami
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Hideo Mure
- Department of Neurosurgery, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Yasuhisa Kanematsu
- Department of Neurosurgery, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Yasushi Takagi
- Department of Neurosurgery, University of Tokushima Graduate School of Biomedical Sciences, Japan
| | - Yuishin Izumi
- Department of Neurology, University of Tokushima Graduate School of Biomedical Sciences, Japan
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24
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Komatsu‐Fujii T, Nonoyama S, Ogawa M, Fukumoto T, Tanabe H. Rapid effects of dupilumab treatment on papuloerythroderma of Ofuji. J Eur Acad Dermatol Venereol 2020; 34:e739-e741. [DOI: 10.1111/jdv.16581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 04/28/2020] [Indexed: 11/30/2022]
Affiliation(s)
- T. Komatsu‐Fujii
- Department of Dermatology Tenri Hospital Tenri Japan
- Department of Dermatology Kyoto University Graduate School of Medicine Kyoto Japan
| | - S. Nonoyama
- Department of Dermatology Tenri Hospital Tenri Japan
| | - M. Ogawa
- Department of Dermatology Tenri Hospital Tenri Japan
| | - T. Fukumoto
- Department of Dermatology Tenri Hospital Tenri Japan
| | - H. Tanabe
- Department of Dermatology Tenri Hospital Tenri Japan
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25
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Iwasaki S, Fujisawa S, Nakakubo S, Kamada K, Yamashita Y, Fukumoto T, Sato K, Oguri S, Taki K, Senjo H, Sugita J, Hayasaka K, Konno S, Nishida M, Teshima T. Comparison of SARS-CoV-2 detection in nasopharyngeal swab and saliva. J Infect 2020; 81:e145-e147. [PMID: 32504740 PMCID: PMC7270800 DOI: 10.1016/j.jinf.2020.05.071] [Citation(s) in RCA: 166] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 05/30/2020] [Indexed: 11/16/2022]
Affiliation(s)
- Sumio Iwasaki
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Shinichi Fujisawa
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Sho Nakakubo
- Department of Respiratory Medicine, Hokkaido University Faculty of medicine, Sapporo, Japan
| | - Keisuke Kamada
- Department of Respiratory Medicine, Hokkaido University Faculty of medicine, Sapporo, Japan
| | - Yu Yamashita
- Department of Respiratory Medicine, Hokkaido University Faculty of medicine, Sapporo, Japan
| | - Tatsuya Fukumoto
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Kaori Sato
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Satoshi Oguri
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Keisuke Taki
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Hajime Senjo
- Department of Hematology, Hokkaido University Faculty of medicine, Sapporo, Japan
| | - Junichi Sugita
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Kasumi Hayasaka
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Satoshi Konno
- Department of Respiratory Medicine, Hokkaido University Faculty of medicine, Sapporo, Japan
| | - Mutsumi Nishida
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Takanori Teshima
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan; Department of Hematology, Hokkaido University Faculty of medicine, Sapporo, Japan.
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26
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Komatsu-Fujii T, Nonoyama S, Ogawa M, Fukumoto T, Sakai C, Yoshimoto Y, Nakanishi K, Abe N, Tanabe H. Subcutaneous pseudocystic phaeohyphomycosis due to Exophiala jeanselmei mimicking an epidermal cyst. J Eur Acad Dermatol Venereol 2020; 34:e745-e747. [PMID: 32374461 DOI: 10.1111/jdv.16585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - S Nonoyama
- Department of Dermatology, Tenri Hospital, Tenri, Japan
| | - M Ogawa
- Department of Dermatology, Tenri Hospital, Tenri, Japan
| | - T Fukumoto
- Department of Dermatology, Tenri Hospital, Tenri, Japan
| | - C Sakai
- Department of Plastic Surgery, Tenri Hospital, Tenri, Japan
| | - Y Yoshimoto
- Department of Plastic Surgery, Tenri Hospital, Tenri, Japan
| | - K Nakanishi
- Department of Laboratory Medicine, Tenri Hospital, Tenri, Japan
| | - N Abe
- Department of Laboratory Medicine, Tenri Hospital, Tenri, Japan
| | - H Tanabe
- Department of Dermatology, Tenri Hospital, Tenri, Japan
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27
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Liu S, Fukumoto T, Gena P, Feng P, Sun Q, Li Q, Matsumoto T, Kaneko T, Zhang H, Zhang Y, Zhong S, Zeng W, Katsuhara M, Kitagawa Y, Wang A, Calamita G, Ding X. Ectopic expression of a rice plasma membrane intrinsic protein (OsPIP1;3) promotes plant growth and water uptake. Plant J 2020; 102:779-796. [PMID: 31872463 DOI: 10.1111/tpj.14662] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 11/09/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Plasma membrane intrinsic proteins (PIPs) are known to be major facilitators of the movement of a number of substrates across cell membranes. From a drought-resistant cultivar of Oryza sativa (rice), we isolated an OsPIP1;3 gene single-nucleotide polymorphism (SNP) that is mostly expressed in rice roots and is strongly responsive to drought stress. Immunocytochemistry showed that OsPIP1;3 majorly accumulated on the proximal end of the endodermis and the cell surface around the xylem. Expression of GFP-OsPIP1;3 alone in Xenopus oocytes or rice protoplasts showed OsPIP1;3 mislocalization in the endoplasmic reticulum (ER)-like neighborhood, whereas co-expression of OsPIP2;2 recruited OsPIP1;3 to the plasma membrane and led to a significant enhancement of water permeability in oocytes. Moreover, reconstitution of 10×His-OsPIP1;3 in liposomes demonstrated water channel activity, as revealed by stopped-flow light scattering. Intriguingly, by patch-clamp technique, we detected significant NO3- conductance of OsPIP1;3 in mammalian cells. To investigate the physiological functions of OsPIP1;3, we ectopically expressed the OsPIP1;3 gene in Nicotiana benthamiana (tobacco). The transgenic tobacco plants exhibited higher photosynthesis rates, root hydraulic conductivity (Lpr ) and water-use efficiency, resulting in a greater biomass and a higher resistance to water deficit than the wild-type did. Further experiments suggested that heterologous expression of OsPIP1;3 in cyanobacterium altered bacterial growth under different conditions of CO2 gas supply. Overall, besides shedding light on the multiple functions played by OsPIP1;3, this work provides insights into the translational value of plant AQPs.
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Affiliation(s)
- Siyu Liu
- Key Laboratory of Agricultural Biological Functional Genes, Northeast Agricultural University, Harbin, 150030, China
| | - Tatsuya Fukumoto
- Graduate School of Bioresource Sciences, Akita Prefectural University, Akita, 010-0195, Japan
| | - Patrizia Gena
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari 'Aldo Moro', Bari, Italy
| | - Peng Feng
- Key Laboratory of Agricultural Biological Functional Genes, Northeast Agricultural University, Harbin, 150030, China
| | - Qi Sun
- Key Laboratory of Agricultural Biological Functional Genes, Northeast Agricultural University, Harbin, 150030, China
| | - Qiang Li
- Key Laboratory of Agricultural Biological Functional Genes, Northeast Agricultural University, Harbin, 150030, China
| | - Tadashi Matsumoto
- Graduate School of Bioresource Sciences, Akita Prefectural University, Akita, 010-0195, Japan
| | - Toshiyuki Kaneko
- Research Institute for Bioresources, Okayama University, Kurashiki, 710-0046, Japan
| | - Hang Zhang
- Key Laboratory of Agricultural Biological Functional Genes, Northeast Agricultural University, Harbin, 150030, China
| | - Yao Zhang
- College of Horticulture, Northeast Agricultural University, Harbin, 150030, China
| | - Shihua Zhong
- Department of Biochemistry, the University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Weizhong Zeng
- Department of Biophysics, the University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Maki Katsuhara
- Research Institute for Bioresources, Okayama University, Kurashiki, 710-0046, Japan
| | - Yoshichika Kitagawa
- Graduate School of Bioresource Sciences, Akita Prefectural University, Akita, 010-0195, Japan
| | - Aoxue Wang
- College of Horticulture, Northeast Agricultural University, Harbin, 150030, China
| | - Giuseppe Calamita
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari 'Aldo Moro', Bari, Italy
| | - Xiaodong Ding
- Key Laboratory of Agricultural Biological Functional Genes, Northeast Agricultural University, Harbin, 150030, China
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28
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Tai K, Komatsu S, Sofue K, Kido M, Tanaka M, Kuramitsu K, Awazu M, Gon H, Tsugawa D, Yanagimoto H, Toyama H, Murakami S, Murakami T, Fukumoto T. Total tumour volume as a prognostic factor in patients with resectable colorectal cancer liver metastases. BJS Open 2020; 4:456-466. [PMID: 32277807 PMCID: PMC7260417 DOI: 10.1002/bjs5.50280] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 02/16/2020] [Indexed: 12/29/2022] Open
Abstract
Background Although total tumour volume (TTV) may have prognostic value for hepatic resection in certain solid cancers, its importance in colorectal liver metastases (CRLM) remains unexplored. This study investigated its prognostic value in patients with resectable
CRLM. Method This was a retrospective review of patients who underwent hepatic resection for CRLM between 2008 and 2017 in a single institution. TTV was measured from CT images using three‐dimensional construction software; cut‐off values were determined using receiver operating characteristic (ROC) curve analyses. Potential prognostic factors, overall survival (OS) and recurrence‐free survival (RFS) were determined using multivariable and Kaplan–Meier analyses. Results Some 94 patients were included. TTV cut‐off values for OS and RFS were 100 and 10 ml respectively. Right colonic primary tumours, primary lymph node metastasis and bilobar liver metastasis were included in the multivariable analysis of OS; a TTV of 100 ml or above was independently associated with poorer OS (hazard ratio (HR) 6·34, 95 per cent c.i. 2·08 to 17·90; P = 0·002). Right colonic primary tumours and primary lymph node metastasis were included in the RFS analysis; a TTV of 10 ml or more independently predicted poorer RFS (HR 1·90, 1·12 to 3·57; P = 0·017). The 5‐year OS rate for a TTV of 100 ml or more was 41 per cent, compared with 67 per cent for a TTV below 100 ml (P = 0·006). Corresponding RFS rates with TTV of 10 ml or more, or less than 10 ml, were 14 and 58 per cent respectively (P = 0·009). A TTV of at least 100 ml conferred a higher rate of unresectable initial recurrences (12 of 15, 80 per cent) after initial hepatic resection. Conclusion TTV was associated with RFS and OS after initial hepatic resection for CRLM; TTV of 100 ml or above was associated with a higher rate of unresectable recurrence.
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Affiliation(s)
- K Tai
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - S Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - K Sofue
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - M Kido
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - M Tanaka
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - K Kuramitsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - M Awazu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - H Gon
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - D Tsugawa
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - H Yanagimoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - H Toyama
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
| | - S Murakami
- Clinical and Translational Research Centre, Kobe University Hospital, Kobe, Hyogo, Japan
| | - T Murakami
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - T Fukumoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe, Hyogo, Japan
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29
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30
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Nagaoka K, Yamashita Y, Kimura H, Suzuki M, Konno S, Fukumoto T, Akizawa K, Morinaga Y, Yanagihara K, Nishimura M. Effects of Anaerobic Culturing on Pathogenicity and Virulence-Related Gene Expression in Pneumococcal Pneumonia. J Infect Dis 2020; 219:1545-1553. [PMID: 30561674 DOI: 10.1093/infdis/jiy718] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 12/11/2018] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The pathogenicity of Streptococcus pneumoniae under anaerobic conditions remains largely unknown. We examined the pathogenicity of S. pneumoniae cultured under anaerobic conditions in a murine model of pneumococcal pneumonia. METHODS Mice were infected with S. pneumoniae grown under anaerobic or aerobic conditions. The pathogenic effects in vivo in the lower airway tract were then compared. The effect of anaerobic culture on lytA/ply transcript levels in vitro and in vivo were analyzed by quantitative real-time polymerase chain reaction. RESULTS Mice inoculated with anaerobically cultured S. pneumoniae exhibited significantly lower survival rates and higher bacterial loads in the lungs and blood as compared to those infected with aerobically cultured S. pneumoniae. Aerobically cultured S. pneumoniae in the early log phase of growth was also able to induce severe pneumonia at levels equivalent to those of anaerobic S. pneumoniae. However, ply/gyrB transcript levels were significantly increased in the lungs of mice infected with anaerobically grown S. pneumoniae. In vitro, S. pneumoniae grown under anaerobic culture conditions demonstrated greater proliferation than S. pneumoniae grown under aerobic culture conditions, and bacterial concentrations were maintained for 24 hours without detectable upregulation of lytA messenger RNA. CONCLUSIONS S. pneumoniae grown under anaerobic conditions had the potential to induce severe invasive bacteremic pneumococcal pneumonia in a manner different from that of S. pneumoniae grown under aerobic conditions.
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Affiliation(s)
- Kentaro Nagaoka
- First Department of Internal Medicine, Hokkaido University Hospital, Hokkaido
| | - Yu Yamashita
- First Department of Internal Medicine, Hokkaido University Hospital, Hokkaido
| | - Hiroki Kimura
- First Department of Internal Medicine, Hokkaido University Hospital, Hokkaido
| | - Masaru Suzuki
- First Department of Internal Medicine, Hokkaido University Hospital, Hokkaido
| | - Satoshi Konno
- First Department of Internal Medicine, Hokkaido University Hospital, Hokkaido
| | - Tatsuya Fukumoto
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Hokkaido
| | - Koji Akizawa
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Hokkaido
| | - Yoshitomo Morinaga
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Masaharu Nishimura
- First Department of Internal Medicine, Hokkaido University Hospital, Hokkaido
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Fukumoto T, Fukumoto R, Oka M, Horita N. Comparing treatments for basal cell carcinoma in terms of long‐term treatment‐failure: a network meta‐analysis. J Eur Acad Dermatol Venereol 2019; 33:2050-2057. [DOI: 10.1111/jdv.15796] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/27/2019] [Indexed: 01/24/2023]
Affiliation(s)
- T. Fukumoto
- Gene Expression and Regulation Program The Wistar Institute Philadelphia PA USA
- Division of Dermatology Department of Internal Related Kobe University Graduate School of Medicine Kobe Japan
| | - R. Fukumoto
- Research Center for Advanced Science and Technology The University of Tokyo Tokyo Japan
| | - M. Oka
- Division of Dermatology Tohoku Medical and Pharmaceutical University Sendai Japan
| | - N. Horita
- Department of Pulmonology Yokohama City University Graduate School of Medicine Kanazawa Yokohama Japan
- National Human Genome Research Institute National Institutes of Health Bethesda MD USA
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Sasaki R, Demizu Y, Yamashita T, Komatsu S, Akasaka H, Miyawaki D, Yoshida K, Wang T, Okimoto T, Fukumoto T. First-in-Human Phase I Study of a Non-Woven Fabric Bioabsorbable Spacer Combined with Particle Therapy Against Abdominal or Pelvic Sarcomas. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Nagaoka K, Yamashita Y, Kimura H, Kimura H, Suzuki M, Fukumoto T, Hayasaka K, Yoshida M, Hara T, Maki H, Ohkawa T, Konno S. Anti-PcrV titers in non-cystic fibrosis patients with Pseudomonas aeruginosa respiratory tract infection. Int J Infect Dis 2019; 87:54-59. [PMID: 31419482 DOI: 10.1016/j.ijid.2019.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/07/2019] [Accepted: 08/08/2019] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE The epidemiology and role of the anti-PcrV titer in non-cystic fibrosis patients with Pseudomonas aeruginosa airway tract infections is not fully understood. This study was performed to compare the anti-PcrV titers of patients with and without P. aeruginosa respiratory tract infections. METHODS This prospective cohort study was conducted at Hokkaido University Hospital in Japan. Participants had blood and sputum specimens collected on admission. They were divided into two groups based on their sputum culture results. Those with a P. aeruginosa infection were assigned to the P. aeruginosa (PA) group and those without a P. aeruginosa infection were assigned to the non-PA group. Serum anti-PcrV titers were measured using a validated ELISA. RESULTS Of the 44 participants, 15 were assigned to the PA group and 29 were assigned to the non-PA group. In the PA group, 10/15 participants (66.7%) had an anti-PcrV titer >1000ng/ml compared to 3/29 participants (10.3%) in the non-PA group (p<0.001). In the PA group, two of the five participants with an anti-PcrV titer <1000 ng/ml died of recurrent P. aeruginosa pneumonia; the other three participants did not develop pneumonia. CONCLUSION The anti-PcrV titers in participants with P. aeruginosa infection varied considerably. Patients with low anti-PcrV titers and refractory P. aeruginosa infections need to be monitored closely.
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Affiliation(s)
- Kentaro Nagaoka
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan.
| | - Yu Yamashita
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Hirokazu Kimura
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Hiroki Kimura
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Masaru Suzuki
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Tatsuya Fukumoto
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Hokkaido, Japan
| | - Kasumi Hayasaka
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Hokkaido, Japan
| | - Mari Yoshida
- Translational Research Unit, Biomarker R&D Department, Shionogi & Co., Ltd., Osaka, Japan
| | - Takafumi Hara
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Hideki Maki
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Tomoyuki Ohkawa
- Translational Research Unit, Biomarker R&D Department, Shionogi & Co., Ltd., Osaka, Japan
| | - Satoshi Konno
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
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Matsushita M, Okubo T, Hasegawa T, Matsuo J, Watanabe T, Iwasaki S, Fukumoto T, Hayasaka K, Akizawa K, Shimizu C, Yamaguchi H. Tetrahymena promotes interactive transfer of carbapenemase gene encoded in plasmid between fecal Escherichia coli and environmental Aeromonas caviae. Microbiol Immunol 2019; 62:720-728. [PMID: 30357893 DOI: 10.1111/1348-0421.12656] [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: 03/13/2018] [Revised: 10/01/2018] [Accepted: 10/22/2018] [Indexed: 01/06/2023]
Abstract
Tetrahymena can facilitate plasmid transfer among Escherichia coli or from E. coli to Salmonella Enteritidis via vesicle accumulation. In this study, whether ciliates promote the interactive transfer of plasmids encoding blaIMP-1 between fecal E. coli and environmental Aeromonas caviae was investigated. Both bacteria were mixed with or without ciliates and incubated overnight at 30°C. The frequency of plasmid-acquired bacteria was estimated by colony counts using an agar plate containing ceftazidim (CAZ) followed by determination of the minimum inhibitory concentration (MIC). Cultures containing ciliates interactively transferred the plasmid between E. coli and Aeromonas with a frequency of 10-4 to 10-5 . All plasmid-acquired bacteria showed a MIC against CAZ of >128 μg/mL and the plasmid transfer was confirmed by PCR amplification of the blaIMP-1 gene. Fluorescent observation showed that both bacteria accumulated in the same vesicle and that transwell sequestering significantly decreased the transfer frequency. Although ciliates preferentially ingested E. coli rather than A. caviae, both bacteria were co-localized into the same vesicles of ciliates, indicating that their meeting is associated with the gene transfer. Thus, ciliates interactively promote plasmid transfer between E. coli and A. caviae. The results of this study will facilitate control of the spread of multiple-antibiotic resistant bacteria.
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Affiliation(s)
- Mizue Matsushita
- Faculty of Health Sciences, Department of Medical Laboratory Science, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Torahiko Okubo
- Faculty of Health Sciences, Department of Medical Laboratory Science, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Takaki Hasegawa
- Faculty of Health Sciences, Department of Medical Laboratory Science, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Junji Matsuo
- Faculty of Health Sciences, Department of Medical Laboratory Science, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Takanori Watanabe
- Faculty of Health Sciences, Department of Medical Laboratory Science, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Sumio Iwasaki
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648, Japan
| | - Tatsuya Fukumoto
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648, Japan
| | - Kasumi Hayasaka
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648, Japan
| | - Kozi Akizawa
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648, Japan
| | - Chikara Shimizu
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648, Japan
| | - Hiroyuki Yamaguchi
- Faculty of Health Sciences, Department of Medical Laboratory Science, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
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35
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Kagami K, Imai S, Tazawa Y, Iwasaki S, Fukumoto T, Akizawa K, Yamada T, Ishiguro N, Iseki K. Possibility of Poor Outcomes after Treatment Using Teicoplanin at the Minimum Inhibitory Concentration of >2 μg/mL in Methicillin-resistant <i>Staphylococcus aureus</i> Bacteremia. YAKUGAKU ZASSHI 2018; 138:1181-1189. [DOI: 10.1248/yakushi.18-00011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Shungo Imai
- Department of Pharmacy, Hokkaido University Hospital
- Department of Infection Control and Prevention, Hokkaido University Hospital
| | - Yuki Tazawa
- Department of Pharmacy, Hokkaido University Hospital
| | - Sumio Iwasaki
- Department of Infection Control and Prevention, Hokkaido University Hospital
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital
| | - Tatsuya Fukumoto
- Department of Infection Control and Prevention, Hokkaido University Hospital
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital
| | - Koji Akizawa
- Department of Infection Control and Prevention, Hokkaido University Hospital
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital
| | - Takehiro Yamada
- Department of Pharmacy, Hokkaido University Hospital
- Department of Infection Control and Prevention, Hokkaido University Hospital
| | - Nobuhisa Ishiguro
- Department of Infection Control and Prevention, Hokkaido University Hospital
| | - Ken Iseki
- Department of Pharmacy, Hokkaido University Hospital
- Laboratory of Clinical Pharmaceutics and Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University
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Abstract
AbstractSetting: Atherosclerosis causes structural changes in artery walls that alter their physical properties. The stiffness parameteris one quantitative index of the elastic properties of large arteries.can be calculated from the measurements of blood pressure and arterial diameter. We examined whether quantitatively evaluates common carotid atherosclerosis. Methods: We measured the common carotid artery inner diameter and its pulsatile change with an ultrasonic instrument. The subjects were healthy persons, patients with atherosclesrosis risk factors, patients with myocardial infarctions, and patients with cerebral infarction. Results: Thein healthy persons aged 40-59 years was 11.2. β was 13.2 in patients with atherosclerosis risk factors, 13.4 in patients with myocardial infarction, and 13.5 in patients with cerebral infarctions. These data in each patient group were significantly higher than those in healthy subjects. Conclusions: This diagnostic method is inexpensive, noninvasive and easily performed.shows promise as a useful diagnostic indicator of atherosclerosis.
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Fujishiro K, Fukumoto T, Joki M, Wada T. Effective Prevention of Carotid Artery Atherosclerosis by Following this Motto for Healthy Habits: “Give Up One, Reduce Two, and Increase Three”. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1633971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Summary
Objectives:
Lifestyle has a major influence on the development and progression of atherosclerosis. Our motto for healthy habits is “give up one, reduce two, and increase three”. The one thing that is to be given up is smoking. The two things that are to be reduced are intake of food and alcohol. The three things that are to be increased are exercise, rest and enjoyable activities. We assessed correlation between these six-health habits and plaque score indicating degree of atherosclerosis in the carotid artery.
Methods:
Subjects were divided into unfavorable (practicing zero to three habits) and optimal (practicing four to six habits) healthy habits groups.
Results:
Plaque score was significantly higher in the unfavorable group (7.6 ± 5.8) than in the optimal group (4.9 ± 4.2) (P<0.001).
Conclusions:
The healthy habits that significantly contributed to prevention of atherosclerosis were quitting smoking and increasing rest and enjoyable activities.
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Fukumoto T, Katada F, Sato S, Shibayama H, Murayama S, Fukutake T. [A case of acute leukoencephalopathy induced by a combination of 5-fluorouracil and metronidazole]. Rinsho Shinkeigaku 2018; 58:118-123. [PMID: 29386497 DOI: 10.5692/clinicalneurol.cn-001105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We describe a 66-year-old woman who received folinic acid, leucovorin, fluorouracil and oxaliplatin for advanced rectal carcinoma. These drugs were initiated on day 1, and a pelvic abscess was identified on day 7. Piperacillin-tazobactam was initially administered, but was changed to ceftriaxone and metronidazole on day 14 on the basis of antimicrobial susceptibility testing. On the following day, the patient reported blindness, and MRI of the brain showed signal abnormalities in the splenium of the corpus callosum on DWI, suggestive of metronidazole encephalopathy. Although the total body exposure was 2 g, metronidazole was discontinued. The patient developed coma a few days later, and MRI of the brain on day 26 showed high signal intensity extensively involving the white matter in the cerebrum as well as the brainstem and cerebellum. She died 37 days after the initial administration of the chemotherapy. Pathological studies demonstrated decreased staining intensity in the myelin sheath and multiple vacuolar alterations, consistent with toxicity induced by metronidazole and fluorouracil. Care should be taken when administering a combination of these drugs, even if the total body exposure to each drug is limited.
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Affiliation(s)
| | | | - Susumu Sato
- Department of Neurology, Kameda General Hospital
| | | | - Shigeo Murayama
- Department of Neurology, Tokyo Metropolitan Geriatric Hospital
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Baba M, Aikou T, Natsugoe S, Kusano C, Shimada M, Nakano S, Fukumoto T, Yoshinaka H. Quality of life following esophagectomy with three-field lymphadenectomy for carcinoma, focusing on its relationship to vocal cord palsy. Dis Esophagus 2017; 11:28-34. [PMID: 29040479 DOI: 10.1093/dote/11.1.28] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [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: 12/11/2022]
Abstract
To clarify the quality of life of patients who underwent esophagectomy for carcinoma by right thoracotomy, laparotomy and cervical anastomosis, 116 patients who were cancer free at the time of mailing a questionnaire were analyzed. A significant decrease in vital capacity for 3 years postoperatively, as well as in the percentage of ideal body weight, between 3 and 5 years were observed in 57 patients with three-field lymphadenectomy. Patients' quality of life undergoing three-field dissection was worse than those with less radical lymphadenectomy (59 cases) in terms of the performance status and difficulty in talking at 60 months or more postoperatively. Around 20% of all patients reported severe hoarseness due to permanent recurrent nerve paralysis, resulting in poor quantity of food intake at 24 months or less postoperatively and restricted daily activity and difficulty in talking at 60 months or more after the operation. When a patient suffers from vocal cord insufficiency caused by permanent paralysis of the recurrent nerve, early treatment before discharge from the hospital should be performed to improve the quality of life of such a patient.
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Affiliation(s)
- M Baba
- First Department of Surgery, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - T Aikou
- First Department of Surgery, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - S Natsugoe
- First Department of Surgery, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - C Kusano
- First Department of Surgery, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - M Shimada
- First Department of Surgery, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - S Nakano
- First Department of Surgery, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - T Fukumoto
- First Department of Surgery, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | - H Yoshinaka
- First Department of Surgery, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
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40
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Fukumoto T, Iwanaga A, Fukunaga A, Wataya-Kaneda M, Koike Y, Nishigori C, Utani A. First-genetic analysis of atypical phenotype of pseudoxanthoma elasticum with ocular manifestations in the absence of characteristic skin lesions. J Eur Acad Dermatol Venereol 2017; 32:e147-e149. [PMID: 29024031 DOI: 10.1111/jdv.14637] [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: 11/30/2022]
Affiliation(s)
- T Fukumoto
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - A Iwanaga
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, 852-8523, Nagasaki, Japan
| | - A Fukunaga
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - M Wataya-Kaneda
- Department of Dermatology, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, 565-0871, Osaka, Japan
| | - Y Koike
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, 852-8523, Nagasaki, Japan
| | - C Nishigori
- Division of Dermatology, Department of Internal Related, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - A Utani
- Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, 852-8523, Nagasaki, Japan
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41
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Fukutake T, Fukumoto T, Tokumoto K, Tomura M, Mitobe F, Tajima K, Takeuchi R, Katada F, Sato S, Shibayama H. Neurological aspects of accidents during bathing. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1056] [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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42
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Shibayama H, Tomura M, Fukumoto T, Tokumoto K, Tajima K, Takeuchi R, Mitobe F, Katada F, Sato S, Fukutake T. Extrathymic neoplasms in patients with myasthenia gravis; In which patients should we pay attention to their presence? ------ Observational study in a community hospital. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Yamada T, Kagami K, Imai S, Akizawa K, Iwasaki S, Fukumoto T, Ishiguro N, Iseki K. Improved Clinical Outcomes in Patients with Positive Blood Culture by Proactive Intervention of Antimicrobial Use-Impact of Antimicrobial Stewardship Program Implementation on Clinical Practice. YAKUGAKU ZASSHI 2017; 137:917-925. [PMID: 28674308 DOI: 10.1248/yakushi.17-00037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bacteremia is one of the most serious infectious illness resulting from nosocomial infection. Therefore, appropriate antimicrobial chemotherapy should be provided as soon as possible to patients exhibiting symptoms of infectious disease and having positive blood culture results. Antimicrobial stewardship (AS) guidelines were recently released by the Infectious Diseases Society of America. The guidelines recommend "proactive intervention and feedback" as one of the core strategies for implementing optimal antimicrobial drug use to improve patient outcomes in clinical settings. We began using the AS program for optimizing antimicrobial chemotherapy in patients with positive blood culture results. The results of blood cultures and antimicrobial prescriptions for the corresponding patients were daily reviewed by a pharmacist and a physician, members of the infection control team (ICT). If the antimicrobial agents selected were inappropriate, ICT made a recommendation to the attending physicians who prescribed the antibiotics. To evaluate the outcomes of this program, we conducted a single-center, retrospective investigation for near a hundred of patients who underwent intervention by infection-control physician and pharmacist. Resolution of bacteremia (determined by blood culture results) was 96.3% in the group that accepted intervention, whereas only 16.7% of the cases resolved in the group that did not accept intervention. These results strongly suggest the importance of the infection disease-specialist team intervention. This program could become an important method for improving clinical outcomes in patients with bacteremia.
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Affiliation(s)
- Takehiro Yamada
- Department of Pharmacy, Hokkaido University Hospital.,Division of Infection Control and Prevention, Hokkaido University Hospital
| | | | - Shungo Imai
- Department of Pharmacy, Hokkaido University Hospital.,Division of Infection Control and Prevention, Hokkaido University Hospital
| | - Koji Akizawa
- Division of Infection Control and Prevention, Hokkaido University Hospital
| | - Sumio Iwasaki
- Division of Infection Control and Prevention, Hokkaido University Hospital
| | - Tatsuya Fukumoto
- Division of Infection Control and Prevention, Hokkaido University Hospital
| | - Nobuhisa Ishiguro
- Division of Infection Control and Prevention, Hokkaido University Hospital
| | - Ken Iseki
- Department of Pharmacy, Hokkaido University Hospital.,Laboratory of Clinical Pharmaceutics and Therapeutics, Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University
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Okubo T, Matushita M, Ohara Y, Matsuo J, Oguri S, Fukumoto T, Hayasaka K, Akizawa K, Shibuya H, Shimizu C, Yamaguchi H. Ciliates promote the transfer of a plasmid encoding blaNDM-5 from Escherichia coli, isolated from a hospital in Japan, to other human pathogens. Int J Antimicrob Agents 2017; 49:387-388. [DOI: 10.1016/j.ijantimicag.2017.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/25/2017] [Accepted: 01/28/2017] [Indexed: 11/26/2022]
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45
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Fukumoto T, Matsuo J, Okubo T, Nakamura S, Miyamoto K, Oka K, Takahashi M, Akizawa K, Shibuya H, Shimizu C, Yamaguchi H. Acanthamoeba containing endosymbiotic chlamydia isolated from hospital environments and its potential role in inflammatory exacerbation. BMC Microbiol 2016; 16:292. [PMID: 27978822 PMCID: PMC5160005 DOI: 10.1186/s12866-016-0906-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 11/29/2016] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Environmental chlamydiae belonging to the Parachlamydiaceae are obligate intracellular bacteria that infect Acanthamoeba, a free-living amoeba, and are a risk for hospital-acquired pneumonia. However, whether amoebae harboring environmental chlamydiae actually survive in hospital environments is unknown. We therefore isolated living amoebae with symbiotic chlamydiae from hospital environments. RESULTS One hundred smear samples were collected from Hokkaido University Hospital, Sapporo, Japan; 50 in winter (February to March, 2012) and 50 in summer (August, 2012), and used for the study. Acanthamoebae were isolated from the smear samples, and endosymbiotic chlamydial traits were assessed by infectivity, cytokine induction, and draft genomic analysis. From these, 23 amoebae were enriched on agar plates spread with heat-killed Escherichia coli. Amoeba prevalence was greater in the summer-collected samples (15/30, 50%) than those of the winter season (8/30, 26.7%), possibly indicating a seasonal variation (p = 0.096). Morphological assessment of cysts revealed 21 amoebae (21/23, 91%) to be Acanthamoeba, and cultures in PYG medium were established for 11 of these amoebae. Three amoebae contained environmental chlamydiae; however, only one amoeba (Acanthamoeba T4) with an environmental chlamydia (Protochlamydia W-9) was shown the infectious ability to Acanthamoeba C3 (reference amoebae). While Protochlamydia W-9 could infect C3 amoeba, it failed to replicate in immortal human epithelial, although exposure of HEp-2 cells to living bacteria induced the proinflammatory cytokine, IL-8. Comparative genome analysis with KEGG revealed similar genomic features compared with other Protochlamydia genomes (UWE25 and R18), except for a lack of genes encoding the type IV secretion system. Interestingly, resistance genes associated with several antibiotics and toxic compounds were identified. CONCLUSION These findings are the first demonstration of the distribution in a hospital of a living Acanthamoeba carrying an endosymbiotic chlamydial pathogen.
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Affiliation(s)
- Tatsuya Fukumoto
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
| | - Junji Matsuo
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812 Japan
| | - Torahiko Okubo
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812 Japan
| | - Shinji Nakamura
- Division of Biomedical Imaging Research, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421 Japan
| | - Kentaro Miyamoto
- Miyarisan Pharmaceutical Co., Ltd., 2-3-13-209, Minami, Wako-shi, Saitama 351-0104 Japan
| | - Kentaro Oka
- Miyarisan Pharmaceutical Co., Ltd., 2-3-13-209, Minami, Wako-shi, Saitama 351-0104 Japan
| | - Motomichi Takahashi
- Miyarisan Pharmaceutical Co., Ltd., 2-3-13-209, Minami, Wako-shi, Saitama 351-0104 Japan
| | - Kouji Akizawa
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
| | - Hitoshi Shibuya
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
| | - Chikara Shimizu
- Hokkaido University Hospital, Nishi-5 Kita-14 Jo, Kita-ku, Sapporo, Hokkaido 060-8648 Japan
| | - Hiroyuki Yamaguchi
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University Graduate School of Health Sciences, Nishi-5 Kita-12 Jo, Kita-ku, Sapporo, Hokkaido 060-0812 Japan
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Oguri S, Hanawa T, Matsuo J, Ishida K, Yamazaki T, Nakamura S, Okubo T, Fukumoto T, Akizawa K, Shimizu C, Kamiya S, Yamaguchi H. Protozoal ciliate promotes bacterial autoinducer-2 accumulation in mixed culture with Escherichia coli. J GEN APPL MICROBIOL 2016; 61:203-10. [PMID: 26582290 DOI: 10.2323/jgam.61.203] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We have previously demonstrated conjugation of Escherichia coli into vacuoles of the protozoal ciliate (Tetrahymena thermophila). This indicated a possible role of ciliates in evoking bacterial quorum sensing, directly connecting bacterial survival via accumulation in the ciliate vacuoles. We therefore assessed if ciliates promoted bacterial autoinducer (AI)-2 accumulation with vacuole formation, which controls quorum sensing. E. coli AI-2 accumulation was significantly enhanced in the supernatants of a mixed culture of ciliates and bacteria, likely depending on ciliate density rather than bacterial concentration. As expected, AI-2 production was significantly correlated with vacuole formation. The experiment with E. coli luxS mutants showed that ciliates failed to enhance bacterial AI-2 accumulation, denying a nonspecific phenomenon. Fluorescence microscopy revealed accumulation of fragmented bacteria in ciliate vacuoles, and, more importantly, expulsion of the vacuoles containing disrupted bacteria into the culture supernatant. There was no increase in the expression of luxS (encoding AI-2) or ydgG (a transporter for controlling bacterial export of AI-2). We conclude that ciliates promote bacterial AI-2 accumulation in a mixed culture, via accumulation of disrupted bacteria in ciliate vacuoles followed by expulsion of the vacuoles, independently of luxS or ydgG gene induction. This is believed to be the first demonstration of a relationship between E. coli AI-2 dynamics and ciliates. In the natural environment, ciliate biotopes may provide a survival advantage to bacteria inhabiting such biotopes, via evoking quorum sensing.
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Butler MP, Honma S, Fukumoto T, Kawamoto T, Fujimoto K, Noshiro M, Kato Y, Honma KI. Dec1 and Dec2 Expression is Disrupted in the Suprachiasmatic Nuclei of Clock Mutant Mice. J Biol Rhythms 2016; 19:126-34. [PMID: 15038852 DOI: 10.1177/0748730403262870] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
DEC1 and DEC2 are basic helix-loop-helix transcription factors that functionally resemble negative feedback components of the mammalian circadian clock. The genes Dec1 and Dec2 are expressed rhythmically in the rat suprachiasmatic nuclei, and Dec1 expression is stimulated by light in a timedependent manner with the kinetics of an immediate early gene. DEC1 and DEC2 can inhibit CLOCK:BMAL1 transactivation of the clock gene Per1, suggesting that these transcription factors may help regulate circadian timing. The authors present data on the expression pattern of Dec1 and Dec2 in wild-type and homozygous Clock mutant mice. In the suprachiasmatic nuclei, the Clock mutation significantly reduces the expression of Dec1 and Dec2. Dec1 becomes arrhythmic; Dec2 remains weakly rhythmic in a 12L:12D light-dark cycle but is arrhythmic in constant darkness. A robust attenuation of the Dec1 and Dec2 signals in Clock mutant mice was detected in all brain areas examined. These data point to up-regulation of Dec1 and Dec2 by Clock in vivo.
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Affiliation(s)
- Matthew Preston Butler
- Department of Physiology, Hokkaido University Graduate School of Medicine, Sapporo 060-8638, Japan
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Ishiguro N, Oyamada R, Nasuhara Y, Yamada T, Miyamoto T, Imai S, Akizawa K, Fukumoto T, Iwasaki S, Iijima H, Ono K. Three-day regimen of oseltamivir for postexposure prophylaxis of influenza in wards. J Hosp Infect 2016; 94:150-3. [PMID: 27346624 DOI: 10.1016/j.jhin.2016.05.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/17/2016] [Indexed: 11/15/2022]
Abstract
Inpatients who had been in close contact with patients with influenza were given oseltamivir [75mg capsules once daily for adults or 2mg/kg (maximum of 75mg) once daily for children] for three days as postexposure prophylaxis (PEP). The index patients with influenza were prescribed a neuraminidase inhibitor and were discharged immediately or transferred to isolation rooms. The protective efficacy of oseltamivir for three days was 93% overall [95% confidence interval (CI) 53-99%; P=0.023] and 94% for influenza A (95% CI 61-99%; P=0.017), which is comparable to that of seven- to 10-day regimens of oseltamivir as PEP.
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Affiliation(s)
- N Ishiguro
- Infection Control Team, Hokkaido University Hospital, Sapporo, Japan.
| | - R Oyamada
- Infection Control Team, Hokkaido University Hospital, Sapporo, Japan
| | - Y Nasuhara
- Division of Hospital Safety Management, Hokkaido University Hospital, Sapporo, Japan
| | - T Yamada
- Infection Control Team, Hokkaido University Hospital, Sapporo, Japan; Division of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
| | - T Miyamoto
- Infection Control Team, Hokkaido University Hospital, Sapporo, Japan; Division of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
| | - S Imai
- Infection Control Team, Hokkaido University Hospital, Sapporo, Japan; Division of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
| | - K Akizawa
- Infection Control Team, Hokkaido University Hospital, Sapporo, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - T Fukumoto
- Infection Control Team, Hokkaido University Hospital, Sapporo, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - S Iwasaki
- Infection Control Team, Hokkaido University Hospital, Sapporo, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - H Iijima
- Clinical Research and Medical Innovation Centre, Hokkaido University Hospital, Sapporo, Japan
| | - K Ono
- Clinical Research and Medical Innovation Centre, Hokkaido University Hospital, Sapporo, Japan
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Miyagawa F, Iioka H, Fukumoto T, Kobayashi N, Asada H. A case of CD8(+) primary cutaneous peripheral T-cell lymphoma arising from tissue-resident memory T cells in the skin. Br J Dermatol 2015; 173:612-4. [PMID: 25645255 DOI: 10.1111/bjd.13687] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- F Miyagawa
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo, Kashihara, Nara, 634-8522, Japan.
| | - H Iioka
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo, Kashihara, Nara, 634-8522, Japan
| | - T Fukumoto
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo, Kashihara, Nara, 634-8522, Japan
| | - N Kobayashi
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo, Kashihara, Nara, 634-8522, Japan
| | - H Asada
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo, Kashihara, Nara, 634-8522, Japan
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Himuro Y, Miyagawa F, Fukumoto T, Morii T, Hasegawa M, Kobayashi N, Asada H. Hypersensitivity to influenza vaccine in a case of Epstein-Barr virus-associated T-lymphoproliferative disorder. Br J Dermatol 2015; 172:1686-1688. [DOI: 10.1111/bjd.13713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Himuro
- Department of Dermatology; Nara Medical University School of Medicine; 840 Shijo-cho Kashihara Nara 634-8522 Japan
| | - F. Miyagawa
- Department of Dermatology; Nara Medical University School of Medicine; 840 Shijo-cho Kashihara Nara 634-8522 Japan
| | - T. Fukumoto
- Department of Dermatology; Nara Medical University School of Medicine; 840 Shijo-cho Kashihara Nara 634-8522 Japan
| | - T. Morii
- Department of Hematology; Nara Medical University School of Medicine; 840 Shijo-cho Kashihara Nara 634-8522 Japan
| | - M. Hasegawa
- Department of Radiation Oncology; Nara Medical University School of Medicine; 840 Shijo-cho Kashihara Nara 634-8522 Japan
| | - N. Kobayashi
- Department of Dermatology; Nara Medical University School of Medicine; 840 Shijo-cho Kashihara Nara 634-8522 Japan
| | - H. Asada
- Department of Dermatology; Nara Medical University School of Medicine; 840 Shijo-cho Kashihara Nara 634-8522 Japan
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