山田 満稔 (ヤマダ ミツトシ)

YAMADA Mitsutoshi

写真a

所属(所属キャンパス)

医学部 産婦人科学教室(産科) (信濃町)

職名

准教授

外部リンク

経歴 【 表示 / 非表示

  • 2013年01月
    -
    2015年09月

    ニューヨーク幹細胞財団研究所, 博士研究員

  • 2015年10月
    -
    2016年03月

    東京歯科大学, 市川総合病院産婦人科, 助教

  • 2016年04月
    -
    2019年03月

    慶應義塾大学, 医学部産婦人科, 助教

  • 2019年04月
    -
    2024年06月

    慶應義塾大学, 医学部産婦人科学教室, 専任講師

  • 2024年07月
    -
    継続中

    慶應義塾大学, 准教授

学歴 【 表示 / 非表示

  • 1996年04月
    -
    2002年03月

    慶應義塾大学, 医学部

    大学, 卒業

  • 2006年04月
    -
    2010年03月

    慶應義塾大学, 医学部

    大学院, 卒業

学位 【 表示 / 非表示

  • 博士(医学), 慶應義塾大学, 大学評価・学位授与機構, 2010年03月

    Involvement of a novel preimplantation-specific gene encoding the high mobility group box protein Hmgpi in early embryonic development

免許・資格 【 表示 / 非表示

  • 医師免許, 2002年04月

  • 日本産科婦人科学会専門医, 2007年04月

  • 日本人類遺伝学会専門医, 2012年04月

  • 日本生殖医学会生殖医療専門医, 2018年04月

  • 日本女性医学会ヘルスケア専門医, 2019年04月

 

研究分野 【 表示 / 非表示

  • ライフサイエンス / 発生生物学

  • ライフサイエンス / 遺伝学

  • ライフサイエンス / 医化学

  • ライフサイエンス / 産婦人科学

研究キーワード 【 表示 / 非表示

  • ミトコンドリア

  • リプログラム

  • 初期胚発生

  • 生殖医学

 

著書 【 表示 / 非表示

  • 今すぐ知りたい! 不妊治療Q&A-基礎理論からDecision Makingに必要なエビデンスまで

    山田満稔, 中川亮, 医学書院, 2019年04月

    担当範囲: 加齢によって配偶子に起こる妊孕性変化

  • 今すぐ知りたい! 不妊治療Q&A-基礎理論からDecision Makingに必要なエビデンスまで

    2019年04月

    担当範囲: Q87 男性の年齢が上がると, 妊娠しにくくなるのでしょうか? 生まれてくる子どもへの影響は?

  • 新 不妊ケアABC 卵巣刺激法について簡単に説明してください

    山田満稔, 中川亮, 医歯薬出版株式会社, 2019年03月

  • 先端医療シリーズ48「臨床医のための最新産科婦人科」4.体細胞核移植胚性幹細胞の樹立の意義

    山田 満稔、田中 守, 寺田国際事務所/ 先端医療技術研究所, 41-43, 2017, 2017年

  • 【構造と機能】生殖腺の発生と性分化. よくわかる病態生理(監修:松尾理)第12巻婦人科疾患(編集:久保田俊郎)

    山田 満稔、浜谷 敏生、吉村 泰典, 日本医事新報社, 2009年

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論文 【 表示 / 非表示

  • Overdue Calcium Oscillation Causes Polyspermy but Possibly Permits Normal Development in Mouse Eggs

    Fukuoka M., Kang W., Katano D., Horiike S., Miyado M., Tanaka M., Miyado K., Yamada M.

    International Journal of Molecular Sciences (International Journal of Molecular Sciences)  25 ( 1 )  2024年01月

    ISSN  16616596

     概要を見る

    In some non-mammalian eggs, the fusion of one egg and multiple sperm (polyspermy) induces a robust rise in intracellular calcium ion (Ca2+) concentration due to a shortage of inducers carried by a single sperm. Instead, one of the sperm nuclei is selected inside the egg for normal embryogenesis. Polyspermy also occurs during the in vitro fertilization of human eggs; however, the fate of such eggs is still under debate. Hence, the relationship between polyspermy and repetitive Ca2+ increases (Ca2+ oscillation) in mammals remains unknown. To address this issue, we used mouse sperm lacking extramitochondrial citrate synthase (eCS), which functions as a Ca2+ oscillation inducer; its lack causes retarded Ca2+ oscillation initiation (eCs-KO sperm). Elevated sperm concentrations normalize Ca2+ oscillation initiation. As expected, eCS deficiency enhanced polyspermy in both zona pellucida (ZP)-free and ZP-intact eggs despite producing the next generation of eCs-KO males. In conclusion, similarly to non-mammalian eggs, mouse eggs may develop normally under polyspermy conditions caused by problematic Ca2+ oscillation.

  • Assessment of embryologist sufficiency and associated regional disparities in Japanese assisted reproduction facilities using nationwide survey data (IZANAMI project)

    Shirasawa H., Yamada M., Jwa S.C., Kuroda K., Harada M., Osuga Y.

    Journal of Obstetrics and Gynaecology Research (Journal of Obstetrics and Gynaecology Research)  2024年

    ISSN  13418076

     概要を見る

    Aims: This study aims to comprehensively examine the employment and practices of embryologists in Japan's assisted reproductive technology (ART) laboratories, focusing on the impact of various factors such as ART cycle numbers, add-ons, and regional differences. Additionally, it seeks to assess the extent to which Japanese ART facilities meet international minimum standards set by the American Society for Reproductive Medicine (ASRM). Methods: A survey was conducted from December 2021 to February 2022 among 621 ART facilities in Japan. The study categorized facilities into five ART cycle groups and compared the number of embryologists across these groups. It also examined the correlation between the number of embryologists, ART cycles, add-ons, and regional differences. Data were analyzed using linear regression and multiple linear regression analyses. Results: The study's findings revealed a significant correlation between the total number of embryologists at each facility and the ART cycles. Notably, there were significant differences in the number of embryologists across all ART cycle categories. Of the 435 facilities, only 44.6% met the ASRM minimum embryologist staffing requirement. The regression analysis further highlighted the significance of ART cycles and preimplantation genetic testing for aneuploidies as factors. Moreover, the number of embryologists stationed at urban facilities was significantly higher than at nonurban facilities, indicating a potential regional disparity. Conclusion: In Japan, it was first found that more than 50% of ART facilities do not have sufficient embryologists in place relative to the number of ART cycles. Furthermore, the add-ons and regional differences affect the placement of embryologists.

  • Fertility preservation after gonadotoxic treatments for cancer and autoimmune diseases

    Saito S., Yamada M., Yano R., Takahashi K., Ebara A., Sakanaka H., Matsumoto M., Ishimaru T., Utsuno H., Matsuzawa Y., Ooka R., Fukuoka M., Akashi K., Kamijo S., Hamatani T., Tanaka M.

    Journal of Ovarian Research (Journal of Ovarian Research)  16 ( 1 )  2023年12月

     概要を見る

    Background: The indications for fertility preservation (FP) have expanded. A few patients who underwent gonadotoxic treatment did not have the opportunity to receive FP, leading to concerns that these patients may develop premature ovarian insufficiency. However, the usefulness of FP in women with reduced ovarian reserve has also been questioned. Progestin-primed ovarian stimulation can improve the controlled ovarian stimulation (COS) protocol, but there is limited data on the efficacy of FP with progestin-primed ovarian stimulation. Methods: We conducted a prospective study of 43 women with cancer or autoimmune diseases before and after gonadotoxic treatment at the reproductive unit of Keio University Hospital, counselled between 1 January 2018 and 31 December 2021. After counselling, informed consent was obtained for FP from 43 patients, with those who underwent gonadotoxic treatment of the primary disease being prioritised. Gonadotropin-releasing hormone analogue or progestin was used to suppress luteinising hormone in COS before or after gonadotoxic treatment. The number of cryopreserved mature oocytes was the primary outcome. Results: Forty-three patients and 67 assisted reproductive technology cycles were included in the analysis. The median age at entry was 32 [inter quartile range (IQR), 29–37] years. All patients in the post-gonadotoxic treatment group had their oocytes frozen. Gonadotoxic treatment resulted in fewer oocytes [median 3 (IQR 1–4); pre-gonadotoxic treatment group: five patients, 13 cycles] vs. median 9 (IQR 5–14; pre-gonadotoxic treatment group: 38 patients, 54 cycles; P < 0.001). Although anti-Müllerian hormone levels were lower in the post-gonadotoxic treatment group (n = 5, 13 cycles, median 0.29 (IQR 0.15–1.04) pg/mL) than in the pre-gonadotoxic treatment group (n = 38, 54 cycles, median 1.89 (IQR 1.15–4.08) pg/mL) (P = 0.004), oocyte maturation rates were higher in the post-gonadotoxic treatment group [median 100 (IQR 77.5–100) %] than in the pre-gonadotoxic group [median 90.3 (IQR 75.0–100) %; P = 0.039]. Five patients in the pre-gonadotoxic treatment group had their cryopreserved embryos thawed, of which three had live births. Conclusions: Oocytes obtained for FP from women with cancer or autoimmune disease for FP are of satisfactory quality, regardless of whether they are obtained post-gonadotoxic treatment or COS protocols.

  • Fact-finding survey on assisted reproductive technology in Japan

    Harada S., Yamada M., Shirasawa H., Jwa S.C., Kuroda K., Harada M., Osuga Y.

    Journal of Obstetrics and Gynaecology Research (Journal of Obstetrics and Gynaecology Research)  49 ( 11 ) 2593 - 2601 2023年11月

    ISSN  13418076

     概要を見る

    Aims: In anticipation of the future development of assisted reproductive technology (ART) and to smoothly introduce new technology, it is necessary to understand the current staffing status of the medical system and the current state of treatment, as well as the status of in vitro fertilization add-ons, where the need for insurance coverage is currently a matter of debate. Methods: ART facilities in Japan were surveyed (437 valid responses, response rate: 71%). Current staffing status of the medical system, implementation rates of ART, add-on treatments, and medical supplies were investigated. Results: Despite the abundance of embryologists, nurses, and obstetricians and gynecologists in facilities, the majority of facilities lacked counselors, anesthesiologists, and other essential medical professionals. Conventional ovarian stimulation was widely adopted (median 120 [interquartile range 60–300] cycles), followed by mild ovarian simulation (60 [30–200]). Additionally, freeze–thaw embryo transfer cycles (300 [120–750]) were performed more frequently than fresh embryo transfer cycles (30 [30–60]). Among the add-ons, assisted hatching (85.1%), chronic endometritis examination (77.2%) and treatment (76.9%), artificial oocyte activation (67.3%), endometrial receptivity analysis (64.2%), and endometrial microbiome analysis (58.9%) were relatively widely employed. Conclusions: The implementation of frozen–thawed embryo transfer cycles, freeze-all strategies, and add-on treatments have become popular and widely accepted despite the lack of robust evidence regarding their safety and efficacy.

  • Sodium Hexametaphosphate Serves as an Inducer of Calcium Signaling

    Katano D., Kang W., Harada Y., Kawano N., Miyado M., Saito T., Fukuoka M., Yamada M., Miyado K.

    Biomolecules (Biomolecules)  13 ( 4 )  2023年04月

     概要を見る

    In bacteria, polymers of inorganic phosphates, particularly linear polyphosphate, are used as alternative phosphate donors for adenosine triphosphate production. A six-chain form of sodium metaphosphate, sodium hexametaphosphate (SHMP), is believed to have no physiological functions in mammalian cells. In this study, we explored the possible effects of SHMP on mammalian cells, using mouse oocytes, which are useful for observing various spatiotemporal intracellular changes. Fertilization-competent oocytes were isolated from the oviducts of superovulated mice and cultured in an SHMP-containing medium. In the absence of co-incubation with sperm, SHMP-treated oocytes frequently formed pronuclei and developed into two-cell embryos owing to the increase in calcium concentration in the cytoplasm. We discovered an intriguing role for SHMP as an initiator of calcium rise in mouse oocytes, presumably in a wide variety of mammalian cells.

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KOARA(リポジトリ)収録論文等 【 表示 / 非表示

総説・解説等 【 表示 / 非表示

  • Guidelines for Reproductive Medicine in Japan

    Yamada M., Ishikawa T., Iwasa T., Oishi H., Osuka S., Oka K., Ono S., Ono M., Orisaka M., Kanasaki H., Kawano Y., Kawamura K., Kishi H., Kimura F., Kuroda S., Kuwahara A., Kobayashi H., Komiya A., Saito H., Sato K., Sato S., Shiraishi K., Shirasawa H., Suzuki T., Takai Y., Takae S., Takahashi T., Takiuchi T., Tachibana M., Tamura I., Tamura H., Jwa S.C., Baba T., Harada M., Hirata T., Fukui A., Fukuda Y., Fukuhara S., Maruyama T., Yumura Y., Yoshino O., Hirota Y., Tsujimura A., Kuji N., Osuga Y.

    Reproductive Medicine and Biology (Reproductive Medicine and Biology)  21 ( 1 )  2022年01月

    ISSN  14455781

  • Towards further optimization of preimplantation embryo culture media: from the viewpoint of omics and somatic cell nuclear transfer (SCNT) studies.

    Yamada M* (corresponding author), Hamatani T, Akutsu H, Tanaka M

    Journal of Mammalian Ova Research 33 ( 1 ) 35 - 43 2016年04月

    記事・総説・解説・論説等(学術雑誌), 共著

  • From cloned frogs to patient matched stem cells: induced pluripotency or somatic cell nuclear transfer?

    Yamada M, Byrne J, Egli D

    Current Opinion in Genetics & Development 34   29 - 34 2015年04月

    記事・総説・解説・論説等(学術雑誌), 共著

競争的研究費の研究課題 【 表示 / 非表示

  • 生殖器官の共生細菌叢と細菌性代謝産物を介したヒト生命萌芽の分子機構の解明

    2023年06月
    -
    2029年03月

    山田 満稔, 挑戦的研究(開拓), 補助金,  研究代表者

  • 全能性獲得へのロードマップ:幹細胞のミトコンドリア・ゲノム安定性機構の解明

    2020年04月
    -
    2025年03月

    文部科学省・日本学術振興会, 科学研究費助成事業, 山田 満稔, 基盤研究(B), 補助金,  研究代表者

  • ヒト初期胚発生型リプログラミングによるがん化しない安定したiPS細胞の樹立

    2017年04月
    -
    2020年03月

    文部科学省・日本学術振興会, 科学研究費助成事業, 山田 満稔, 若手研究(A), 補助金,  研究代表者

  • ヒト生命萌芽の分子機構の解明~生殖補助医療の向上及び安全性を目指して~

    2009年04月
    -
    2012年03月

    若手研究(B), 山田満稔, 補助金,  研究代表者

受賞 【 表示 / 非表示

  • 平成30年度日本医師会医学研究奨励賞

    2018年11月, 日本医師会

  • 第22回 坂口光洋記念慶應義塾医学振興基金 医学研究奨励賞

    2018年01月

  • 平成29年度日本生殖医学会学術奨励賞

    2017年11月

  • International Society Stem Cell Research (ISSCR) 2017 Annual Meeting Merit Award

    2017年06月

  • International Society Stem Cell Research (ISSCR) 2017 Annual Meeting Travel Award

    2017年06月

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担当授業科目 【 表示 / 非表示

  • 産科学講義

    2024年度

  • 産科学講義

    2023年度

  • 産科学講義

    2022年度

  • 産科学講義

    2021年度

  • 産科学講義

    2020年度

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担当経験のある授業科目 【 表示 / 非表示

  • 性周期のモニタリング

    慶應義塾

    2018年04月
    -
    2019年03月

  • 生殖細胞の発生、受精・着床・妊娠の成立

    慶應義塾

    2018年04月
    -
    2019年03月

 

所属学協会 【 表示 / 非表示

  • International Society for Stem Cell Research

     
  • 日本産科婦人科学会

     
  • 日本生殖医学会

     
  • 日本卵子学会

     
  • 日本人類遺伝学会

     

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委員歴 【 表示 / 非表示

  • 2018年04月
    -
    継続中

    代議員, 社団法人 日本生殖医学会

  • 2017年04月
    -
    2019年03月

    代議員, 日本卵子学会