研究者業績

大槻 眞嗣

オオツキ マサツグ  (Masatsugu Ohtsuki)

基本情報

所属
藤田医科大学 医学部 医学科 臨床総合医学 教授
学位
博士(医学)

J-GLOBAL ID
200901036961498530
researchmap会員ID
1000170807

主要な学歴

 2

主要な論文

 52
  • 前野貴美, 後藤亮平, 春田淳志, 伊野美幸, 石川さと子, 内山靖, 大槻眞嗣, 加藤博孝, 後藤道子, 内藤知佐子, 野呂瀬崇彦, 吉見憲二, 安井浩樹
    医学教育 52 565-570 2022年1月  査読有り
  • 後藤亮平, 前野貴美, 春田淳志, 伊野美幸, 石川さと子, 内山靖, 大槻眞嗣, 加藤博孝, 後藤道子, 内藤知佐子, 野呂瀬崇彦, 吉見憲二, 安井浩樹
    医学教育. 52 557-563 2022年1月  査読有り
  • Sayuri Nakamura, Mihoko Itoh, Yoichiro Miki, Toshiaki Kido, Hiroyuki Kamei, Shigetaka Suzuki, Masatsugu Ohtsuki
    Fujita Medical Journal (Advanced Publication by J-STAGE) 6(4) 102-109 2020年7月  査読有り最終著者
    OBJECTIVE: This study aimed to clarify the relationship between interprofessional self-evaluation and peer evaluation during interprofessional education (IPE) using team-based learning (TBL). We also aimed to clarify differences in interprofessional cooperation between students with high and low peer evaluation scores. METHODS: In total, 483 students (grades 3-5) from nine faculties at three universities participated in a TBL-based IPE program. The students completed five interprofessional self-evaluation domains (the modified Tsukuba IPE model) before and after IPE. Students also completed peer evaluation after IPE. Students were divided into three groups by peer evaluation scores (low, middle, high), and the post-class self-evaluation scores of these groups were compared using a Kruskal-Wallis test. Multiple regression analysis was also performed. Peer evaluation comments were analyzed using a qualitative inductive method. RESULTS: Students in the low peer evaluation group had significantly lower scores in the "Regarding participation in group work" domain than students in the high group (P<0.05). Students in the high group received positive comments, such as [good communication] and [working cooperatively], whereas students in the low group were required to improve in two areas: [speaking up more] and [need more communication]. CONCLUSIONS: There was a significant relationship between peer evaluation by team members and self-evaluation for "Regarding participation in group work." Students with high peer evaluation scores participated with active attitudes, whereas students with low scores were considered passive. This study suggested that using peer evaluation may enhance students' professional cooperation by improving their communication and attitudes toward active participation.
  • Mihoko Ito, Takeshi Hida, Kazue Goto, Michiko Goto, Yoshikiyo Kanada, Masatsugu Ohtsuki
    Fujita Medical Journal (Advanced Publication by J-STAGE) 6(4) 93-101 2020年7月  査読有り最終著者責任著者
    Objectives: The current study sought to understand the learning outcomes experienced by students and to explain their learning process in detail using interpretive data analysis. Methods: A qualitative study examined students who participated in a multidisciplinary course in a ward. This study investigated latent meanings rather than factual information, using an interpretive paradigm. Data were collected via focus groups and analyzed using Steps for Coding and Theorization (SCAT). Results: Students in the Assembly IV trial (interprofessional education in actual medical settings) experienced a process of transition from a competing (exclusive) mode to a mutual-understanding mode when communicating with people in other professions, and they acquired the perspective of an interactive (dialectic) link between involved communication (communication that attempts to connect directly with patients) and uninvolved communication (communication with patients indirectly through data and other methods) for patient communication. This enabled students to move beyond superficial communication while deepening their connections with people in other professions, complementing each other's strengths, and learning about the possibilities inherent in the provision of collaborative medical practice. Conclusions: Students participating in interprofessional education within medical settings learned about the potential to achieve a circular realization of collaborative medical practice. A circular realization of collaborative medical practice involves incorporating diverse approaches into one's own professional work via exposure to the viewpoints of other occupations and avoiding decision-making based on assumptions that are only valid within one's own profession. This process enables the discovery of better methods and perspectives and the achievement of effective medical practice by moving beyond superficial communication.
  • Miyamoto Miho, Ohtsuki Masatsugu, Seko Rumi, Nakamura Sayuri, Yano Hiroaki, Suzuki Shigetaka, Matsui Toshikazu
    Fujita Medical Journal 3(2) 28-32 2017年5月  査読有り
    <p>Objectives: The aim of this study was to investigate changes in health university students' attitudes toward community service before and after a community-oriented education program using team-based learning (TBL). </p><p>Methods: A community-oriented educational program using TBL was carried out with a total of 529 3rd- and 4th-year students in seven faculties of two departments at Fujita Health University, and a questionnaire survey was conducted before and after the program. There were eight questions on students' attitude toward community service.</p><p>Results: Responses with no missing information from 431 students were used in the analysis. There were significant increases in the number of positive responses to three questions after TBL. The item "I think there are things that university students can do as members of the community" increased from 81.9% before TBL to 86.5% after, "I can form specific images of activities that benefit the community" increased from 46.0% before to 70.3% after, and "In the future I want to participate in activities that benefit the community" increased from 74.7% before to 80.3% after.</p><p>Conclusion: The results suggest that this community-oriented educational program using TBL raised the motivation of university students in medical and health science programs to practice community health care.</p>
  • Nakamura Sayuri, Ohtsuki Masatsugu, Miki Yoichiro, Noda Tomohiro, Suzuki Shigetaka, Maeno Takami, Matsui Toshikazu
    Fujita Medical Journal 3(2) 33-39 2017年5月  査読有り
    <p>Objective: This study aimed to examine the effects of interprofessional education (IPE) using team-based learning (TBL).</p><p>Methods: We analyzed the results of a scale to measure IPE among 449 fourth-year students from seven faculties of a health university in Japan. The students took the Assembly Special Lesson as part of IPE using TBL. Before and after the lesson, the participants completed a questionnaire, which consisted of the IPE Tsukuba Model, to which we added two items. The scale was divided into five domains. We compared the scores using the Wilcoxon signed-rank test.</p><p>Results: The overall scores of four of the five domains of the IPE evaluation were significantly higher after the lesson than before (P<0.05): "Understanding the role of each profession's specialization" ; "Regarding participation in group work" ; "Thoughts regarding the team in healthcare and welfare" ; and "Feelings about cooperation among different professions." </p><p>Conclusions: It was evident that the lesson enhanced the students' understanding of the role of other professionals, enabled them to participate in group work, and allowed them to understand the responsibilities of each profession within a team, thereby leading to greater cooperation and better health care. This TBL for IPE was found to be effective by producing valuable changes in perceptions and attitudes toward professional cooperation among students.</p>
  • 大槻 眞嗣
    日本シミュレーション医療教育学会雑誌 = Journal of Japan Association for Simulation-based Education in Healthcare Professionals 2 28-31 2014年6月  
  • 大槻眞嗣, 松井俊和
    日本シミュレーション医療教育学会雑誌 2 76-77 2014年6月  
  • Masatsugu Ohtsuki, Toshikazu Matsui
    Medical teacher 36(5) 452-3 2014年5月  査読有り
  • 大槻眞嗣, 松井俊和, 松永佳世子, 森本紳一郎, 井野晶夫, 服部良信, 石原 慎, 長田明子, 中島 昭, 辻 孝雄, 星長清隆
    医学教育 43(3) 211-214 2012年  査読有り
    1)新研修医が研修開始直後に必要となる手技を習得できることを目標としたスキルスラボを利用したトレーニングをオリエンテーション期間内に導入した.<br>2)新2年目研修医がトレーニングの内容を計画し,新研修医を指導し,3年目以上の上級医は,新2年目研修医の指導を支援する「屋根瓦方式」の指導体制の構築を目指した.<br>3)本トレーニングを開催したことにより研修医間の関係が良好なものとなり,新研修医に安心感を与えるといった波及効果がみられた.
  • 大槻眞嗣, 菊川 薫, 江崎誠治, 若月 徹, 田中郁子, 外山 宏, 長田明子, 石原 慎, 中島 昭, 小野雄一郎, 松井俊和
    医学教育 42(3) 135-140 2011年  査読有り
  • Masatsugu Ohtsuki, Shin-Ichiro Morimoto, Hideo Izawa, Tevfik F Ismail, Hatsue Ishibashi-Ueda, Yasuchika Kato, Taiko Horii, Tadashi Isomura, Hisayoshi Suma, Masanori Nomura, Hitoshi Hishida, Hiroki Kurahashi, Yukio Ozaki
    International journal of cardiology 145(2) 333-334 2010年11月19日  査読有り
    It has been reported that angiotensin converting enzyme (ACE) 2, a homologue of ACE, has direct effects on cardiac function. However, the role of ACE2 in the development of human heart failure is not fully understood. We evaluated the expression of the ACE2 gene by means of real-time RT-PCR in myocardium from 14 patients with end-stage heart failure. The amount of ACE2 mRNA positively correlated with left ventricular (LV) end-diastolic diameter (r(2)=0.56, p<0.01) but did not significantly correlate with LV ejection fraction or plasma brain natriuretic peptide levels. In conclusion, our data show that the up-regulation of the ACE2 gene in the LV myocardium of patients with severe heart failure was associated with the degree of LV dilatation and may thereby constitute an important adaptive mechanism to retard the progression of adverse LV remodeling.
  • Masatsugu Ohtsuki, Takahide Nomura, Shin-ichiro Morimoto, Shinya Hiramitsu, Akihisa Uemura, Shigeru Kato, Yasuchika Kato, Hiroaki Shiraishi, Junko Shimokubo, Naoki Yamamoto, Hitoshi Hishida
    Clinica chimica acta; international journal of clinical chemistry 353(1-2) 103-7 2005年3月  査読有り
    BACKGROUND: Tetrahydrobiopterin (BH4) is an essential cofactor of nitric oxide synthase, and GTP cyclohydrolase I (GCHI) is a rate-limiting enzyme in the biosynthesis of BH4. The expression of inducible nitric oxide synthase (iNOS) was earlier demonstrated in the ventricles of patients with dilated cardiomyopathy (DCM) although that of GCHI was not clarified. The present study was designed to determine the GCHI mRNA expression as well as to confirm iNOS mRNA expression in endomyocardial biopsy specimens from patients with DCM. METHODS: Clinical details were assessed in 19 patients with DCM and in 9 control subjects. The real-time reverse transcription polymerase chain reaction (PCR) was performed on total RNA extracted from endomyocardial biopsy specimens. Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) mRNA was quantified for use as an internal control. RESULTS: iNOS/GAPDH for the DCM samples was 4.8-fold greater than that for the control ones (P<0.01), whereas the GCHI/GAPDH for the DCM samples was reduced to 31.1% of the control (P<0.05). CONCLUSIONS: The increased expression of iNOS mRNA was confirmed in endomyocardial biopsy specimens from patients with DCM. The GCHI mRNA level was suppressed in these specimens.
  • M Ohtsuki, H Shiraishi, T Kato, R Kuroda, M Tazawa, C Sumi-Ichinose, S Tada, Y Udagawa, M Itoh, H Hishida, H Ichinose, T Nagatsu, Y Hagino, T Nomura
    LIFE SCIENCES 70(18) 2187-2198 2002年3月  査読有り
    We studied the effects of cAMP on cytokine (interferon-gamma plus tumor necrosis factor-alpha)-induced stimulation of tetrahydrobiopterin (BH4) synthesis in human umbilical vein endothelial cells (HUVEC). The cytokine mixture caused a marked increase in the biosynthesis and release of BH4 by HUVEC. Dibutyryl-cAMP produced a dose-dependent inhibition of this cytokine-induced stimulation of synthesis and release of BH4 by these cells. 8-Bromo-cAMP also caused a significant inhibition, although the effects were less marked than those of dibutyryl-cAMP. Both forskolin and the stable analog of prostacyclin, iloprost, caused cAMP accumulation and a concomitant diminution of the cytokine-induced BH4 synthesis in HUVEC. Dibutyryl-cAMP and iloprost also significantly inhibited the cytokine-induced stimulation of GTP cyclohydrolase I (GCHI) activity and mRNA production. We concluded that the suppression by the cAMP messenger system of cytokine-induced stimulation of synthesis and release of BH4 by HUVEC can be attributed to the inhibition of the activity of GCHI, the rate-limiting enzyme in BH4 biosynthetic pathway, in HUVEC. The data also suggest that the caMP-mediated reduction in the GCHI mRNA level may at least partially explain the decline in GCHI activity. It is reasoned that under inflammatory conditions, cAMP-elevating agents such as prostacyclin exert regulatory effects on circulation by inhibiting cytokine-induced synthesis and release of BH4 by HUVEC. (C) 2002 Elsevier Science Inc. All rights reserved.

MISC

 101

主要な書籍等出版物

 6

主要な講演・口頭発表等

 55

主要な担当経験のある科目(授業)

 10

主要な共同研究・競争的資金等の研究課題

 2

主要な社会貢献活動

 1

主要なメディア報道

 5

教育内容・方法の工夫(授業評価等を含む)

 3
  • 件名
    藤田式PBLの確立(医学部3,4学年):Ⅱ研究活動 学術論文参照
    開始年月日
    2009
    概要
    本学医学部に適した方式のPBLテュートリアル(藤田式PBL)を確立した。
  • 件名
    藤田式技能トレーニング(新研修医)の確立:Ⅱ研究活動 学術論文参照
    開始年月日
    2009
    概要
    スキルスラボを利用した屋根瓦方式の新研修医を対象とした技能トレーニングを確立した。
  • 件名
    高学年アセンブリの構築
    開始年月日
    2013
    概要
    専門職連携教育として医学部と医療科学部6学科の全4年生を対象とした授業を行う。

作成した教科書、教材、参考書

 1
  • 件名
    教材:藤田式PBLテュータガイド、シナリオ作成ガイド等

教育方法・教育実践に関する発表、講演等

 1
  • 件名
    学会発表参照
    開始年月日
    2009
    終了年月日
    2013
    概要
    医学教育学会へ毎年多数の演題提出。

その他教育活動上特記すべき事項

 2
  • 件名
    医学教育企画室室長
    開始年月日
    2011
  • 件名
    アセンブリ教育センター長
    開始年月日
    2017