The Tokyo Foundation for Policy Research


The Tokyo Foundation for Policy Research


牧 尉太/Jota Maki


Jota Maki

Last updated : July 18, 2024

Senior Assistant Professor and Ward Medical Director, Department of Obstetrics and Gynecology, Okayama University Hospital; Architect, Kibichuo Town Digital Rural Promotion Council

Areas of Expertise
  • Obstetrics & Gynecology
  • Women's Health Care
  • Digital Medical Creation
  • Project Management
  • Medical DX
  • Sustainability Policy

MD, Ph.D. Specialized in obstetrics and gynecology (perinatal medicine and women's healthcare). Leading the collaboration and standardization of healthcare and lifestyle information across municipalities, Dr. Maki established SONAE Corporation (University Venture) in September 2020; appointed Architect of the Digital Rural Promotion Council of Kibichuo Town, Okayama Prefecture, an Innovative National Strategic Special Zone in April 2022.In February 2024, he was appointed as a Vice Chair of Initiative 2 (Regional Development) under J-PEAKs. With his clinical experience, expertise, achievements, and trial fields, he is involved in solutions utilizing new medical technology development such as AI diagnosis and monitoring (maternal and child health promotion, measures against isolation and loneliness), and is leading the effort to realize "a society where everyone can live prosperously even in a society with declining birthrate and aging population by transforming the medical system and lifestyle through the power of digital technology”.

Research Program
Talent development for local healthcare DX

Select Publications

  1. Ohira A, Maki J*, Ageta K, Nakato H, Oba H, Mitoma T, Mishima S, Tani K, Kirino S, Eto E, Nakao A, Masuyama H. Assessing the efficacy of simulation-based education for paramedics in extended focused assessment with sonography for trauma under physician guidance. Sci Rep. 2024 Feb 20;14(1):4190.
  2. Mitoma, Maki J*, A. Suemori, C. Kuriyama, K. Hayata, H. Masuyama. Crucial factors for implementing treatment strategies in intractable atonic postpartum haemorrhage: early phase contrast medium extravasation on dynamic CT. Clinical Press. 2023.
  3. Ooba H, Maki J*, Tabuchi T, Masuyama H. Partner relationships, hopelessness, and health status strongly predict maternal well-being: an approach using light gradient boosting machine. Scientific reports 13(1),17032.2023.
  4. Mishima S, Mitsui T, Tani K, Maki J, Eto E, Hayata K, Washio Y, Yoshimoto J, Tsukahara H, Masuyama H*. Short stature in small-for-gestational-age offspring born to mothers with hypertensive disorders of pregnancy. Hypertension in Pregnancy. 2023 Dec;42(1): 2187623. IF:-
  5. Yui Negoro, Michihisa Shiro, Maki J, Tsubasa Kokehara, Hisashi Masuyama, Shigeki Yoshida. Successful myomectomy using barbed sutures at 15 weeks of gestation: A case report. Case reports in women's health 39 e00550 2023
  6. Nana Kojima, Kosuke Kuroda, Makiko Tani, Tomoyuki Kanazawa, Kazuyoshi Shimizu, Maki J, Hisashi Masuyama, and Hiroshi Morimatsu1. Therapeutic plasma exchange in postpartum HELLP syndrome: a case report. JA Clin Rep. 2023 Dec; 9: 9.
  7. Mitoma T. Maki J*, Ooba H, Eto E, Takahashi K, Kondo T, Ikeda T, Sakamoto Y, Mitsuhashi T , Masuyama H. Protocol for a randomised, placebo-controlled, double-blinded clinical trial on the effect of oestrogen replacement on physical performance to muscle resistance exercise for older women with osteoarthritis of knee joint: the EPOK trial. BMC Geriatrics. 23, 1, 104.2023.
  8. Mitoma T, Ooba H, Mishima O, Ohira A, Kashino C, Kirino S, Tani K,Maki J, Eto E, Masuyama H*. Postpartum pyomyoma due to Mycoplasma hominis: A case report. Case reports in women's health.  36: e00456.
  9. Mitoma T, Hayata K, Yokohata S, Ohira A, Kashino C, Kirino S, Tani K, Maki J, Eto E, Masuyama H*. Diffuse myometrium thinning and placenta accreta spectrum in a patient with systemic lupus erythematosus (SLE): a case report and review of the literature. BMC Pregnancy Childbirth. 2022 Jul 2;22(1):535.
  10. Eto E, Tani K,Maki J, Hayata K, Masuyama H*. Obesity's Influence on Insulin Resistance in Pregnant Women with Polycystic Ovary Syndrome. Acta Med Okayama. 2022 Feb;76(1):51-56.
  11. Tanabe K,Maki J, Nakatou H. Renal capsular vein thrombosis. Clin Exp Nephrol. 2021 Apr;25(4):439-440.
  12. Mitsui T, Mishima S, Tani K,Maki J, Eto E, Hayata K, Masuyama H*. Clinical Course of 60 Cesarean Scar Pregnancies. Acta Med Okayama. 2021 Aug;75(4):439-445.
  13. Tani K, Mitsui T, Mishima S, Ohira A,Maki J, Eto E, Hayata K, Nakamura K, Masuyama H*. EG-VEGF Induces Invasion of a Human Trophoblast Cell Line via PROKR2. Acta Med Okayama. 2021 Dec;75(6):677-684. IF:0.744
  14. Maki J*, Mitoma T, Mishima S, Ohira A, Tani K, Eto E, Hayata K, Masuyama H. A case report of successful vaginal delivery in a patient with severe uterine prolapse and a review of the healing process of a cervical incision. Case Rep Womens Health. 2021 Dec 14;33: e00375.
  15. Maki J*, Nakatou H, Tani K, Eto E, Hayata K, Yamamoto D, Kai K, Tamada T, Akamatsu K, Kawanishi K, Nakamura K, Masuyama H. The Spiral Trial: A multicenter, randomized, controlled trial of Spiral thread sutures versus conventional thread sutures to prevent thinning of uterine scars following elective cesarean section.Contemp Clin Trials. 2021 Aug; 107: 106449.
  16. Mitsui T, Mishima S, Ohira A, Tani K,Maki J, Eto E, Hayata K, Masuyama H*. hCG values and gestational sac size as indicators of successful systemic methotrexate treatment in cesarean scar pregnancy.Taiwan J Obstet Gynecol. 2021 May;60(3):454-457.
  17. Ohira A, Hayata K, Mishima S, Tani K,Maki J, Mitsui T, Eto E, Masuyama H*. The assessment of the fetal heart function using two-dimensional speckle tracking with a high frame rate. Early Hum Dev. 2020 Dec; 151: 105160.
  18. Maki J, Eto E, Tamada S, Mitsui T, Hayata K, Nakamura K, Hiramatsu Y, Masuyama H*. Assessment of glucose kinetics with real-time continuous glucose monitoring during labor. J Obstet Gynaecol Res. 2019 Sep;45(9):1851-1859. IF:1.693
  19. Eto E,Maki J, Akagi T, Ito H, Masuyama H*. Pregnancy with Fontan circulation: A report of case series in Japan.J Cardiol Cases. 2019 Dec 30;21(4):161-163.
  20. Eto E, Maki J, Tamada S, Mitsui T, Hayata K, Hiramatsu Y, Masuyama H. J. Assessment of resting energy expenditure and body composition in Japanese pregnant women with diabetes Journal of Diabetes Investigation. 9, 4, 959-966 , 2018.

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