Faculty of Clinical Engineering

ihira masaru

  (井平 勝)

Profile Information

Affiliation
School of Health Sciences Faculty of Clinical Engineering, Fujita Health University
Degree
博士(医学)(藤田医科大学)

J-GLOBAL ID
200901033786050786
researchmap Member ID
1000205082

Research Areas

 1

Papers

 113
  • Kei Kozawa, Yuki Higashimoto, Yoshiki Kawamura, Hiroki Miura, Fumihiko Hattori, Yuka Mihara, Hidetaka Nakai, Naoko Nishimura, Takao Ozaki, Masaru Ihira, Tetsushi Yoshikawa
    Journal of medical virology, 96(8) e29847, Aug, 2024  
    To elucidate the seroprevalence and rate of asymptomatic infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Japanese children, serological analysis was performed using serum samples collected from March 2020 to February 2023. A total of 1493 serum samples were collected during the first study period (March 2020 to February 2021). None of the serum samples was positive for SARS-CoV-2 antibody. In the second period (March 2021 to February 2022), seven of the 1055 patients (0.7%) experienced SARS-CoV-2 infection. The third period (March 2022 to February 2023) was divided into three terms: from March to June 30, 2022; from July to October 2022; and from November 2022 to February 2023. The seroprevalence gradually increased throughout this period, with rates of 6.0%, 18.6%, and 30.4% in the three terms, respectively. Pediatric cases of asymptomatic SARS-CoV-2 infection occurred after the surge of Omicron variants. Since none of the SARS-CoV-2 antibody-positive patients had a previous history of coronavirus disease 2019, the seroprevalence rate in this study may represent the rate of asymptomatic infection.
  • 東本 祐紀, 古川 源, 河村 吉紀, 小澤 慶, 三浦 浩樹, 井平 勝, 伊藤 弘康, 吉川 哲史
    日本臨床微生物学会雑誌, 34(Suppl.1) 293-293, Dec, 2023  
  • 東本 祐紀, 古川 源, 河村 吉紀, 小澤 慶, 三浦 浩樹, 井平 勝, 伊藤 弘康, 吉川 哲史
    日本臨床微生物学会雑誌, 34(Suppl.1) 293-293, Dec, 2023  
  • 東本 祐紀, 小澤 慶, 服部 文彦, 河村 吉紀, 井平 勝, 鳥越 貞義, 吉川 哲史
    臨床とウイルス, 51(3) 131-131, Sep, 2023  
  • Yasuko Enya, Hiroyuki Hiramatsu, Masaru Ihira, Ryota Suzuki, Yuki Higashimoto, Yusuke Funato, Kei Kozawa, Hiroki Miura, Masafumi Miyata, Yoshiki Kawamura, Takuma Ishihara, Koki Taniguchi, Satoshi Komoto, Tetsushi Yoshikawa
    Fujita medical journal, 9(3) 253-258, Aug, 2023  
    OBJECTIVES: Intestinal rotavirus (RV) vaccine replication and host immune response are suggested to be affected by several factors, including maternal antibodies, breastfeeding history, and gut microbiome, which are thought to be similar in pairs of twins. The aim of this study was to determine whether viral shedding from the fecal RV vaccine strain Rotarix® (RV1) and IgG and IgA responses to RV show similarity in pairs of twins. METHODS: Quantitative reverse transcription polymerase chain reaction specific to RV vaccine strain RV1 was used to monitor fecal RV1 viral shedding. RV IgG and IgA titers were measured using an in-house enzyme-linked immunosorbent assay. Fecal RV1 viral shedding and immune responses were compared between twins and singletons with mixed effects and fixed effects models. RESULTS: A total of 347 stool and 54 blood samples were collected from four pairs of twins and twelve singletons during the observation period. Although the kinetics of fecal RV1 viral shedding and immune responses differed among vaccinated individuals, they appeared to be similar within twin pairs. RV shedding after the first dose (P=0.049) and RV IgG titers during the entire observation period (P=0.015) had a significantly better fit in the fixed effect model that assumed that twins have the same response versus the model that assumed that twins have a different response. CONCLUSIONS: The similarity of RV vaccine viral replication in intestine and host immune responses in twin pairs was demonstrated using statistical analysis.

Misc.

 122

Presentations

 38

Research Projects

 15

教育内容・方法の工夫(授業評価等を含む)

 1
  • 件名(英語)
    生体計測装置学講義ノート、画像診断装置学Ⅱ講義ノート
    終了年月日(英語)
    2012/04/01
    概要(英語)
    担当講義科目について内容を補助する講義ノートを作成した。

作成した教科書、教材、参考書

 1
  • 件名(英語)
    臨床工学講座 生体計測装置学(医歯薬出版 2010 第1版 第3刷)
    終了年月日(英語)
    2013/01/10
    概要(英語)
    日本臨床工学技士教育施設協議会監修として発刊された生体計測装置学の第2章生体電気磁気計測(P32-64)、第3章血圧・血流計測(p131-142)を分担執筆

教育方法・教育実践に関する発表、講演等

 1
  • 件名(英語)
    第5回医療科学部相互研修FD 「留年となる学生の問題点と対応策」
    終了年月日(英語)
    2012/08/07
    概要(英語)
    臨床工学科からのテーマとしてFD研修会にて「留年となる学生の問題点と対応策」として本学科における現況と対応策を発表

その他教育活動上特記すべき事項

 1
  • 件名(英語)
    第4-6回医療科学部相互研修FD 「学習の質をどう評価するか-医療人教育におけるパフォーマンス評価を中心に」
    終了年月日(英語)
    2015/08/06
    概要(英語)
    医療科学部相互研修FDに参加