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Rikikazu Sugiyama

Immunosuppression with Tacrolimus Improved Reproductive Outcome of Women with Repeated Implantation Failure and Elevated Peripheral Blood Th1/Th2 Cell Ratios
2014 · Koji Nakagawa, Joanne Kwak‐Kim, et al. · American Journal of Reproductive Immunology · 133
Impact of chronic endometritis on endometrial receptivity analysis results and pregnancy outcomes
2020 · Keiji Kuroda, Takashi Horikawa, et al. · Immunity Inflammation and Disease · 74
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Increasing number of implantation failures and pregnancy losses associated with elevated Th1/Th2 cell ratio
2021 · Keiji Kuroda, Koji Nakagawa, et al. · American Journal of Reproductive Immunology · 62
Influence of resveratrol supplementation on IVF–embryo transfer cycle outcomes
2019 · Asako Ochiai, Keiji Kuroda, et al. · Reproductive BioMedicine Online · 57
Prevalence of and risk factors for chronic endometritis in patients with intrauterine disorders after hysteroscopic surgery
2022 · Keiji Kuroda, Akina Yamanaka, et al. · Fertility and Sterility · 53
Immunosuppressive treatment using tacrolimus promotes pregnancy outcome in infertile women with repeated implantation failures
2017 · Koji Nakagawa, Joanne Kwak‐Kim, et al. · American Journal of Reproductive Immunology · 51
Hyaluronan-enriched transfer medium improves outcome in patients with multiple embryo transfer failures
2012 · Koji Nakagawa, Chie Takahashi, et al. · Journal of Assisted Reproduction and Genetics · 51
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Parental age and gene expression profiles in individual human blastocysts
2018 · Kiyotaka Kawai, Tatsuya Harada, et al. · Scientific Reports · 45
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Analysis of the therapeutic effects of hysteroscopic polypectomy with and without doxycycline treatment on chronic endometritis with endometrial polyps
2021 · Keiji Kuroda, Satoru Takamizawa, et al. · American Journal of Reproductive Immunology · 43
Clinical outcomes resulting from the transfer of vitrified human embryos using a new device for cryopreservation (plastic blade)
2010 · Rikikazu Sugiyama, Koji Nakagawa, et al. · Journal of Assisted Reproduction and Genetics · 40
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Risk factors for resignation from work after starting infertility treatment among Japanese women: Japan-Female Employment and Mental health in Assisted reproductive technology (J-FEMA) study
2020 · Yuya Imai, Motoki Endo, et al. · Occupational and Environmental Medicine · 37
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Obstetric and perinatal outcome of the women with repeated implantation failures or recurrent pregnancy losses who received pre‐ and post‐conception tacrolimus treatment
2019 · Koji Nakagawa, Joanne Kwak‐Kim, et al. · American Journal of Reproductive Immunology · 36
Measurement of oxidative stress in the follicular fluid of infertility patients with an endometrioma
2015 · Koji Nakagawa, Michi Hisano, et al. · Archives of Gynecology and Obstetrics · 33
Analysis of the risk factors and treatment for repeated implantation failure: OPtimization of Thyroid function, IMmunity, and Uterine Milieu (OPTIMUM) treatment strategy
2020 · Keiji Kuroda, Yuko Matsumura, et al. · American Journal of Reproductive Immunology · 31
Incidences and risk factors of moderate-to-severe ovarian hyperstimulation syndrome and severe hemoperitoneum in 1,435,108 oocyte retrievals
2020 · Keiji Kuroda, Saki Nagai, et al. · Reproductive BioMedicine Online · 30
Vitamin D Regulates Maternal T-Helper Cytokine Production in Infertile Women
2018 · Yuko Ikemoto, Keiji Kuroda, et al. · Nutrients · 30
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Analysis of severe psychological stressors in women during fertility treatment: Japan-Female Employment and Mental health in Assisted reproductive technology (J-FEMA) study
2021 · Yuko Ikemoto, Keiji Kuroda, et al. · Archives of Gynecology and Obstetrics · 29
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After 12 consecutive miscarriages, a patient received immunosuppressive treatment and delivered an intact baby
2017 · Koji Nakagawa, Keiji Kuroda, et al. · Reproductive Medicine and Biology · 29
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Transcriptomic profiling analysis of human endometrial stromal cells treated with autologous platelet‐rich plasma
2023 · Keiji Kuroda, Akemi Matsumoto, et al. · Reproductive Medicine and Biology · 28
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Novel approaches to the management of recurrent pregnancy loss: The OPTIMUM (OPtimization of Thyroid function, Thrombophilia, Immunity, and Uterine Milieu) treatment strategy
2021 · Keiji Kuroda, Yuko Ikemoto, et al. · Reproductive Medicine and Biology · 24
Bone morphogenetic protein 2 may be a good predictor of success in oocyte fertilization during assisted reproductive technology: BMP-2 and ART result
2010 · Rie SUGIYAMA, Atsuya FUZITOU, et al. · Human Cell · 23
The ratio of late-follicular to mid-follicular phase LH concentrations efficiently predicts ART outcomes in women undergoing ART treatment with GnRH-agonist long protocol and stimulation with recombinant FSH
2008 · Koji Nakagawa, Shirei Ohgi, et al. · Journal of Assisted Reproduction and Genetics · 21
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Changes in the T-helper 1 and 2 cell populations during pregnancy in tacrolimus-treated women with repeated implantation failure and recurrent pregnancy loss
2021 · Michi Hisano, Koji Nakagawa, et al. · Human Fertility · 20
The Endometriosis Fertility Index Is Useful for Predicting the Ability to Conceive without Assisted Reproductive Technology Treatment after Laparoscopic Surgery, Regardless of Endometriosis
2017 · Rutsuko Hobo, Koji Nakagawa, et al. · Gynecologic and Obstetric Investigation · 20
A programmed schedule of oocyte retrieval using mild ovarian stimulation (clomiphene citrate and recombinant follicle‐stimulating hormone)
2011 · Koji Nakagawa, Yayoi Nishi, et al. · Reproductive Medicine and Biology · 19
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Works count: 91
Citation count: 1,339
H-index: 21
I10-index: 41
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